• If a woman has 3 years of storage left, at what point should she give up on meeting a suitable partner and attempt IVF with donor sperm, for example? (sciencedaily.com)
  • Prematurely infertile men can therefore store their sperm well into old age, while a woman who freezes her eggs at the age of 30 will not be able to use her own eggs in treatment when she is 41. (sciencedaily.com)
  • Researchers have successfully frozen testicular tissue from monkeys too young to produce sperm and used this tissue to produce a pregnancy resulting in live, healthy offspring. (eurekalert.org)
  • The researchers then isolated sperm from the previously frozen implants and used it to fertilize 138 eggs. (eurekalert.org)
  • Unlike sperm, eggs rarely survive freezing and thawing. (nih.gov)
  • The best option currently for a female cancer patient to preserve fertility is to collect eggs, fertilize them with sperm, and freeze the resulting embryos. (nih.gov)
  • The new findings build on earlier efforts by the research team, who grew mouse follicles in culture, induced the eggs they contained to mature, fertilized them with mouse sperm, and implanted them into female mice to establish pregnancy. (nih.gov)
  • For instance, male frogs exposed to atrazine have lower testosterone levels, produce less sperm, and even change their mating habits by choosing males over females. (nationalgeographic.com)
  • Ethics Consult: Fertilize Human Egg With Neanderthal Sperm? (medpagetoday.com)
  • Last week, you voted on whether researchers should be allowed to fertilize a human egg with Neanderthal DNA-infused sperm . (medpagetoday.com)
  • To impregnate a woman, three important factors were considered: sperm concentration, sperm morphology, and motility. (bigthink.com)
  • Survival comes down to strong sperm and healthy eggs. (bigthink.com)
  • A new approach for assisting reproduction in mice when sperm production is faulty has been demonstrated by researchers at RIKEN 1 . (riken.jp)
  • In a typical IVF procedure, doctors collect a woman's eggs (mature oocytes) and a man's sperm and combine them in a laboratory dish to make embryos for implantation. (riken.jp)
  • The sperm and egg normally each contain a single copy of all 23 human chromosomes. (riken.jp)
  • Selenium is known to protect against chromosomal (DNA) damage by protecting the body against toxins and pollutants, and future research may demonstrate the importance of prospective parents having good levels of this mineral in the months before conception, when both sperm and eggs are maturing. (healthy.net)
  • From there, the team converted the XX cells into primordial germ cells, the precursors of eggs and sperm, that were subsequently programmed with the signals to turn them into egg cells. (ball-pythons.net)
  • Once fertilized with sperm and implanted into a mouse uterus, the eggs generated live offspring. (ball-pythons.net)
  • One technique is known as maternal spindle transfer, in which nuclear DNA is taken from one woman's egg and inserted into the empty nucleus of another woman's egg, which can then be fertilized with the man's sperm. (gizmodo.com)
  • The other option is called pronuclear transfer, where a woman's egg is first fertilized by the man's sperm. (gizmodo.com)
  • Sperm don't meet the egg by chance," says biophysicist U. Benjamin Kaupp at the Center of Advanced European Studies & Research, in Bonn, Germany. (acs.org)
  • Specialized cells that surround and nourish egg cells release progesterone, which makes calcium ions rush into human sperm. (acs.org)
  • The new research suggests that progesterone works by opening a pH-sensitive calcium channel called CatSper, which resides on sperm tail membranes. (acs.org)
  • It is defined as any procedure that involves surgically removing eggs from a woman’s ovaries, combining them with sperm in the laboratory, and returning them to the woman’s body or donating them to another woman. (cdc.gov)
  • ART does not include treatments in which only sperm are handled (i.e., intrauterineâ€"or artificialâ€"insemination) or procedures in which a woman takes medicine only to stimulate egg production without the intention of having eggs retrieved. (cdc.gov)
  • In parents with the AFF2 gene premutation, the number of CCG repeats can expand to more than 200 in cells that develop into eggs or sperm. (medlineplus.gov)
  • Most people do not eat enough vegetables in their diets, and at the same time, people are consuming salad dressings that have less fat or are fat-free," said Jung Eun Kim, a postdoctoral researcher in Purdue's Department of Nutrition Science. (thirdage.com)
  • The risk was twice as high in the 20 percent with the lowest selenium levels, says Amra Jujic, postdoctoral researcher at Lund University and the first author of the study. (lu.se)
  • The team included members of SJSU's Moss Landing Marine Laboratories, Monterey Bay Aquarium Research Institute, and NOAA. (klfy.com)
  • Researchers at the Monterey Bay Aquarium Research Institute (MBARI) have observed a deep-sea octopus brooding its eggs for four and one half years-longer than any other known animal. (mbari.org)
  • Jonathan Tilly of Massachusetts General Hospital recently announced findings in which he shows that certain stem cells found in women's ovaries can produce new eggs. (bostonmagazine.com)
  • however, in the subsocial Ceratina calcarata, pre-dispersal females have fully developed ovaries and are capable of laying eggs, but they have no chance at becoming fertilized. (wikipedia.org)
  • Researchers have already identified experimental methods to freeze entire ovaries or strips of ovarian tissue and implant them in a woman's body when she is ready to have children. (nih.gov)
  • The time of year when eggs are collected from women's ovaries during fertility treatment makes a difference to live birth rates, according to new research. (sciencedaily.com)
  • The time of year when eggs are collected from women's ovaries during fertility treatment makes a difference to live birth rates, according to new research published today (Thursday) in Human Reproduction , one of the world's leading reproductive medicine journals. (sciencedaily.com)
  • When female animals form egg cells inside their ovaries, they deposit messenger RNAs (mRNAs) - a sort of genetic instruction set - in the egg cell cytoplasm. (princeton.edu)
  • Rethinking the “biological clock,†a new study suggests that women’s ovaries continue to form new eggs throughout life. (contemporaryobgyn.net)
  • Analyzing an earlier study, reproductive biologists argue in PLoS Genetics that oocyte-producing stem cells (OSCs) in ovaries continue to divide after birth, producing new eggs even into adulthood. (contemporaryobgyn.net)
  • In the traditional view, female mammals' ovaries at birth contain all the eggs they will have throughout life. (contemporaryobgyn.net)
  • Recent research, however, has shown that adult mouse and human ovaries contain OSCs capable of dividing and creating new oocytes. (contemporaryobgyn.net)
  • In a study published in February in PLoS Genetics , researchers used a new technique to count a cell's "depth," or how many times it has divided, finding that ovaries of older mice released eggs with significantly greater depth than those of younger mice. (contemporaryobgyn.net)
  • Although Tilly's findings, published in Nature Medicine , could eventually help some couples' dreams come true, outside doctors worry that Tilly's notorious tendency to "[leap] ahead from basic research findings" could give their patients false hope in the baby-making department. (bostonmagazine.com)
  • The findings shed light on the role stress may play on female reproduction. (neurosciencenews.com)
  • Until now, there have been conflicting findings on the effects of the seasons on pregnancies and live birth rates following egg collection and embryo freezing. (sciencedaily.com)
  • At the same time as Burdine and colleagues, two other research groups, led by Joe Yost at the University of Utah and Alex Schier at Harvard University, made similar findings on the role of gdf3 during zebrafish development. (princeton.edu)
  • These findings were made by a PhD student, Cadence Minge, at the University of Adelaide's Research Centre for Reproductive Health. (wdxcyber.com)
  • The findings by a team of researchers led Dr. Hwang Woo Suk of Seoul National University, represented to South Korean scientists and published worldwide Thursday in the U.S. journal "Science. (cnn.com)
  • In a summary of the experiments, published online on May 5 in Science, the researchers say their findings could advance the search for similar processes in mammals (including humans), which may lead to a better understanding of hunger, cravings and ultimately weight gain and obesity. (news-medical.net)
  • Our research findings support that people obtained more of the health-promoting carotenoids from raw vegetables when cooked whole eggs were also consumed. (thirdage.com)
  • These findings suggest that, for healthy women, consumption of protein-rich breakfasts leads to better glucose control throughout the morning than the consumption of low-protein options. (missouri.edu)
  • Based on the study's findings, the researchers are hopeful that the consumption of protein-rich breakfasts also would benefit individuals with pre-diabetes, although future research is needed to confirm. (missouri.edu)
  • The project, called the World Stem Cell Hub, is headquartered at Seoul National University, where researchers led by Hwang Woo-Suk have been in the vanguard of stem cell research. (voanews.com)
  • Previous research suggests that excessive exercise can have the opposite effect, however: too much working out can be bad for reproductive fitness. (bigthink.com)
  • The Archdiocese suggests people who want to do the challenge contribute to the John Paul II Medical Research Institute, "where the research is only conducted using adult stem cells. (salon.com)
  • This research suggests that, in addition to setting records for the longest brooding time of any animal, Graneledone boreopacifica may be one of the longest lived cephalopods (a group that includes octopuses, squids, and their relatives). (mbari.org)
  • A new analysis of old data suggests that the endangered erect-crested penguin's bizarre nesting habits - rejecting the first egg they lay - is because they can't feed two chicks, and the second, larger egg has a better chance of success. (eurasiareview.com)
  • Researchers believe this suggests the need for further studies to determine risk for ART in pregnancies with multiple births. (cdc.gov)
  • Current research suggests that people with a premutation do not have associated cognitive problems. (medlineplus.gov)
  • The fact that abundance of proteasome subunit alpha significantly reduced only in eggs which were activated by clay suspension suggests that activation medium can somehow intervene with protein regulation during fertilization. (lu.se)
  • More than thirty years ago, researchers discovered that mRNAs encoding a protein called Vg1 are deposited in the cytoplasm of frog eggs. (princeton.edu)
  • To investigate whether maternally supplied gdf3 mRNA also plays a role in left-right patterning, the researchers used a series of experimental tricks to supply embryos with enough Gdf3 protein to form the mesoderm and endoderm and survive until the later stages of embryonic development. (princeton.edu)
  • Attentive drakes appear to stand guard while females load up on protein for the big egg-production task ahead. (ducks.org)
  • Although experimenters have identified sensors and hormones in fruit flies and mammals that control how many calories we consume, the Johns Hopkins researchers say they believe this is the first time a protein-specific hunger mechanism has been identified in any animal. (news-medical.net)
  • In the search for the neurons that control eating behavior, the researchers used recently mated females that tend to feed on higher protein sources to load up nutrients in their eggs. (news-medical.net)
  • They tested the females from each line for ones that no longer preferred eating high-protein yeast after mating. (news-medical.net)
  • The researchers then used tiny electrodes to measure the electrical firing (signaling) behavior of these neurons in fruit flies deprived of protein-rich yeast in their diets. (news-medical.net)
  • In nature, after protein deprivation, flies tend to seek out high-protein yeast as a food source instead of the fruit sugar they normally prefer for their quick energy boost, so the researchers wondered if the dopamine wedge neurons also suppressed sugar cravings. (news-medical.net)
  • Using genetically engineered male fruit flies with silenced dopamine wedge neurons, the researchers deprived the flies of high-protein yeast and then measured how much sugar and yeast they ate. (news-medical.net)
  • University of Missouri research shows women who eat protein before work have less chance of developing diabetes. (missouri.edu)
  • For women, eating more protein in the morning can beneficially affect their glucose and insulin levels," said Heather Leidy, an assistant professor of nutrition and exercise physiology at Mizzou. (missouri.edu)
  • Since most American women consume only about 10-15 grams of protein during breakfast, the 30-39 grams might seem like a challenging dietary change," Leidy said. (missouri.edu)
  • Leidy said the study provides a good model to initially examine the effect of higher-protein breakfasts on glucose and insulin responses since only healthy, non-diabetic women with appropriate glucose control were included in the study. (missouri.edu)
  • The research, "Acute Effects of Higher Protein, Sausage and Egg-based Convenience Breakfast Meals on Postprandial Glucose Homeostasis in Healthy, Premenopausal Women," will be presented at the 2014 Experimental Biology meeting in San Diego, Calif. Leidy collaborated with researchers Tia M. Rains, Kristen D. Sanoshy, Andrea Lawless and Kevin C. Maki, of Biofortis Clinical Research, a division of Mérieux NutriSciences in Chicago. (missouri.edu)
  • Researchers recommend protein intakes of 1.2-1.4 g/kg/d for individuals participating in endurance sports and 1.6-1.8 g/kg/d for those involved in anaerobic activities (see the Table). (medscape.com)
  • A systematic literature review found that pre- and post-exercise protein intakes of 0.32-0.38 g/kg have beneficial effects on physiological responses in premenopausal female athletes. (medscape.com)
  • Women at risk for having a low protein intake are those who restrict their energy intake to achieve weight loss or those who eat a vegetarian diet. (medscape.com)
  • [ 17 ] In addition, some researchers have raised questions about whether a high-protein or low-carbohydrate diet may increase the all-cause mortality risk in women. (medscape.com)
  • Effects of different activation media including freshwater and clay suspension on protein abundances of egg were quantified in sterlet Acipenser ruthenus. (lu.se)
  • In-gel digestion and high resolution mass spectrometry were used for label-free protein quantification in the eggs of five females. (lu.se)
  • 0.05) difference was found between protein abundances in eggs activated with different media. (lu.se)
  • 0.05, fold change ≥2) reduction in the abundances of nine proteins including six glycoproteins, enolase and heat shock protein in activated groups compared to freshly ovulated eggs as control. (lu.se)
  • The researchers found that the follicles would grow if injected into a gelatin mixture. (nih.gov)
  • April 18, 2019 A 20-year study of women with lupus has found strong evidence that depression increases a person's risk of developing lupus. (lupusresearch.org)
  • Researchers have found that transferring frozen then thawed embryos to women's wombs from eggs collected in the summer resulted in a 30% higher likelihood of babies born alive, than if the eggs had been retrieved in the autumn. (sciencedaily.com)
  • The researchers also found a 28% increase in the chances of a live birth among women who had eggs collected during days that had the most sunshine compared to days with the least sunshine. (sciencedaily.com)
  • Fossils of hundreds of male and female adult Hamipterus individuals were found alongside juveniles and eggs at the Xinjiang Uygur Autonomous Region site, making this Cretaceous Period species that lived 120 million years ago perhaps the best understood of all pterosaurs. (deccanchronicle.com)
  • Until now, no pterosaur eggs had been found with embryos preserved in three dimensions. (deccanchronicle.com)
  • WIKIMEDIA, BRISBANE CITY COUNCIL As populations of contagious cancer-stricken Tasmanian devils ( Sarcophilus harrisii ) decline, at least one of the animals they prey on, the arboreal common brushtail possum ( Trichosurus vulpecula ), is letting down its guard, researchers from the University of Tasmania, Australia, and their colleagues have found. (the-scientist.com)
  • Male and female Poecilia reticulata WIKIMEDIA, MARRABBIO2 Researchers from Stockholm University in Sweden have found that the size of a female Poecilia reticulata guppy's brain is linked to her response to predators. (the-scientist.com)
  • Specifically, the team found that large-brained female guppies spent less time inspecting experimental predators and remained further from such predators than small-brained guppies. (the-scientist.com)
  • The researchers found that maternal gdf3 is required for Ndr1 and Ndr2 to signal at the levels necessary to properly induce the formation of mesoderm and endoderm cells in early zebrafish embryos. (princeton.edu)
  • They have found, in mice, that obesity is a key factor in the mice's infertility as a result of how the fat affects the egg. (wdxcyber.com)
  • They have actually found that they can take the "fat egg" and reverse the effects of obesity on the eggs, creating a healthy egg. (wdxcyber.com)
  • SANTA CRUZ, Calif. ( KRON ) - A deep-sea mystery involving thousands of octopuses found off the coast of Central California was recently solved by a team of ocean researchers. (klfy.com)
  • Through a simple tweak to developing egg cells, RIKEN researchers have found a way to restore these abnormal spermatocytes and produce viable offspring. (riken.jp)
  • Researchers have found that smoking causes chromosomal damage and speeds up aging. (medicaldaily.com)
  • Although happiness may vary between people based on personal experiences, the researchers found that life satisfaction - one of the factors that determines happiness - decreases after the age of nine and increases between the ages of 70 and 96. (medicaldaily.com)
  • When they returned one month later, they found that the female was gone. (mbari.org)
  • Davis and colleagues found that the first egg typically is lost from the nest either before, or soon after, the second egg is laid, and parents sometimes deliberately break or eject the egg. (eurasiareview.com)
  • Last year, Wu's research team found a similar type of circuit in fruit fly brains that controls sleepiness the longer a fruit fly stays awake. (news-medical.net)
  • The researchers cultured the XO cells and found that some cells developed two X chromosomes as a result of cell division errors - making them chromosomally female. (ball-pythons.net)
  • Treating the XO cells with a compound called reversine increased the number of XX cells, the researchers found. (ball-pythons.net)
  • Researchers at the Lawrence Berkeley National Laboratory in California found the disintegration of two solvents present in almost every e-liquid - the substance vaporised in e-cigarettes - leads to the emission of toxic chemicals, including acrolein - a severe eye and respiratory irritant - and formaldehyde - a cause of coughing, wheezing and nausea. (independent.co.uk)
  • Researchers used gas and liquid chromatography to discover what was in the vapour and found emissions levels increased dramatically from the first, initial puffs to later puffs when the device had reached a hotter "steady' temperature. (independent.co.uk)
  • Researchers also found that all mice at the separate untreated sites made significantly less contacts with other mice during the same time that the testosterone treatment significantly increased contacts. (vetscite.org)
  • A group of steroids found in female mouse urine goes straight to the male mouse's head, according to researchers at Washington University School of Medicine in St. Louis. (vetscite.org)
  • In 2005, he found that female mice or their odors cause male mice to sing. (vetscite.org)
  • This has already been tested in monkeys, and researchers at the Oregon National Primate Research Center found the technique had the same birth success rate as monkeys born using traditional in-vitro fertilization. (gizmodo.com)
  • When a research student went back to check the heat level two weeks later, she found a prehistoric friend. (macleans.ca)
  • [ 17 ] Women should avoid consuming fats found in processed foods because of their highly saturated nature. (medscape.com)
  • Most studies looking at IVF success rates have looked at fresh embryo transfers, where the embryo is put back within a week of the egg being collected. (sciencedaily.com)
  • This makes it impossible to separate the potential impacts of environmental factors, such as season and hours of sunshine, on egg development and on embryo implantation and early pregnancy development. (sciencedaily.com)
  • We realised this gave us an opportunity to explore the impact of environment on egg development and on early pregnancy separately by analysing the conditions at the time of egg collection independently from the conditions at the time of embryo transfer. (sciencedaily.com)
  • this increased to 30.4% when the embryo came from an egg that was collected on days with the most hours of sunshine. (sciencedaily.com)
  • PROF. HWANG YOON-YOUNG, HANYANG UNIVERSITY (through translator): Our research team has successfully culled stem cells from a cloned human embryo through mature growing process in a test tube. (cnn.com)
  • They made this egg divide and turn into blastosis, an early stage embryo. (cnn.com)
  • The destruction of the pre-embryo has been the critical issue in the U.S. behind imposing limits on federal government-sponsored research in embryonic stem cells. (jcpa.org)
  • Many politicians, religious leaders, and bioethicists believe that any destruction of the pre-implanted embryo or fertilized egg is akin to murder. (jcpa.org)
  • Other research, from the University of Montreal , shows that having multiple embryo transfers also reduces your chance of having a healthy baby. (gettingpregnant.co.uk)
  • Instead of transferring two embryos , the HFEA is recommending that women who have the highest chances of getting pregnant with IVF, i.e. those under 37 , have only one embryo transferred. (gettingpregnant.co.uk)
  • increased public sensitivity and awareness together with the development of national regulations of governance of human cloning and embryo research in general. (lifeissues.net)
  • An in-depth analysis aiming at re-defining this terminology according to the new developments in human embryo research would be highly beneficial . (lifeissues.net)
  • 3. National regulations of governance of human cloning and embryo research in general adopted so far confirm the convergence of views of the refusal to adopt legislation or guidelines permitting reproductive cloning , while they still show variations on the legitimacy of human cloning carried out as part of research agendas. (lifeissues.net)
  • 2. Nuclear transfer is a technique used to duplicate genetic material by creating an embryo through the transfer and fusion of a diploid cell in an enucleated female oocyte.2 Cloning has a broader meaning than nuclear transfer as it also involves gene replication and natural or induced embryo splitting (see Annex 1). (who.int)
  • Researchers Grow Immature Egg Cells in the Laboratory for 30 Days. (nih.gov)
  • The government, the country's largest source of research grants, provides money only for study on stem cells obtained before August, 2001, when President Bush announced this restriction. (voanews.com)
  • But the story has taken a new twist as religious groups are now beginning to discourage followers from participating -- because ALS research at times relies on embryonic stem cells. (salon.com)
  • Researchers investigating many other conditions, including Parkinson's , also have been known to use embryonic stem cells. (salon.com)
  • If gdf3 is not supplied to the egg by the mother, the fertilized egg cannot produce two of the three major types of cells required for development," Burdine said. (princeton.edu)
  • Overweight women have more estrogen in their bodies since fat cells produce estrogen. (wdxcyber.com)
  • The triploid cells aren't suitable for therapeutic purposes, and future efforts will be focused on trying to eliminate the [egg cell] genome," said Daley, who wrote an accompanying News & Views in Nature . (the-scientist.com)
  • This could help researchers identify abnormalities in iPSC differentiation, correct them, and develop pluripotent stem cells that don't harbor tumorigenic qualities and do not require the use of human embryos. (the-scientist.com)
  • SOHN JIE-AE, CNN CORRESPONDENT (voice-over): South Korean researchers report that they have created embryos through cloning, not for the purpose of making babies, but to create stem cells for scientific research. (cnn.com)
  • As the fertilized egg divides from one cell into two, physicians can separate these two cells and implant each one of them into a woman's uterus to generate two genetically identical children. (jcpa.org)
  • Similarly, when the fertilized egg divides from two cells into four cells, each of these four cells has the potential to individually form a human fetus. (jcpa.org)
  • However, by the time the fertilized egg divides into 8 or 16 cells something changes and each respective cell, if separated, no longer has the potential to create a fetus. (jcpa.org)
  • Most researchers obtain embryonic stem cells from the inner mass of a blastocyst, an embryonic stage when a fertilized egg has divided into 128 cells. (jcpa.org)
  • The stem cells derived from the inner mass of a blastocyst lack the ability to form a fetus when implanted into a woman, but are self-renewing and can be maintained for long periods of time in the laboratory as undifferentiated stem cells. (jcpa.org)
  • Using fruit flies, Johns Hopkins researchers say they have identified a specific and very small set of brain cells -- dubbed dopamine wedge neurons -- responsible for driving the insects' food preferences toward what they need, rather than what they like. (news-medical.net)
  • The team, led by Katsuhiko Hayashi, a professor of genome biology at Osaka University in Japan, generated eggs from the skin cells of male mice that, when implanted in female mice, went on to produce healthy pups, according to research published March 15 in the peer-reviewed journal Nature . (ball-pythons.net)
  • However, scientists warn there's still much to learn before cultured cells can be used to make human eggs in a lab dish. (ball-pythons.net)
  • The researchers took skin cells from the tails of fully grown male lab mice, which, as in male humans, contain one X and one Y chromosome, and turned them into induced pluripotent stem cells, or iPSCs - a type of cell that scientists have reprogrammed into an embryonic state. (ball-pythons.net)
  • Induced pluripotent stem cells, which can be developed into any kind of human cell, are widely used in biological research to model and investigate human diseases and develop drugs. (ball-pythons.net)
  • In the mouse study, very few of the embryos generated using mouse cells resulted in live offspring and the final steps required to convert germ cells into eggs have not been reliably reproduced using human cells," added Mitchell, who is also a consultant pediatric endocrinologist at the Royal Hospital for Children and Young People in Edinburgh. (ball-pythons.net)
  • The use of various types of stem cells for research purposes to make disease "models" in the lab for regenerative medicine and for "therapies" to cure sick patients for diseases is constantly in the news. (lifeissues.net)
  • In particular, scientific developments in areas such as iPS cells open new possibilities of research and, at mid term, of therapeutic applications, but they also bring new ethical challenges and problems requiring further reflection and debate. (lifeissues.net)
  • Researchers in the US claim to have overcome one of the major hurdles to cultivating human follicles from stem cells. (independent.co.uk)
  • This condition is primarily revealed in male fish that have immature female egg cells in their testes, but occasionally female fish will have male characteristics as well. (freshwater.org)
  • 5. In 2001, France and Germany requested the United Nations General Assembly to develop international conventions on human reproductive cloning, therapeutic cloning and research on stem cells. (who.int)
  • The fact that the DNA of a fully differentiated (adult) cell could be stimulated to revert to a condition comparable to that of a newly fertilized egg and to repeat the process of embryonic development demonstrates that all the genes in differentiated cells retain their functional capacity, although only a few are active. (who.int)
  • C. calcarata is the first subsocial bee species to have its genome published, allowing researchers to investigate the evolutionary origins of social behaviour. (wikipedia.org)
  • Furthermore, C. calcarata and C. dupla mate at such low rates that they should be treated as two distinct species despite having morphologically exact females. (wikipedia.org)
  • Scientist have unearthed more than 215 fossilised eggs belonging to species that soared during the age of dinosaurs. (deccanchronicle.com)
  • Scientists said on Thursday they unearthed 215 eggs of the fish-eating Hamipterus tianshanensis - a species whose adults had a crest atop an elongated skull, pointy teeth and a wingspan of more than 11 feet (3.5 meters) - including 16 eggs containing partial embryonic remains. (deccanchronicle.com)
  • The females of this species are devoted super-moms. (klfy.com)
  • The researchers caution that unless erect-crested penguins receive greater research attention and conservation efforts, the species will continue to be poorly understood and ultimately, their very survival could be threatened. (eurasiareview.com)
  • There is an urgent need for more research and better conservation marketing of this remarkable species. (eurasiareview.com)
  • Of the 16 fish species researchers examined from 1995 to 2004, the condition was most common by far in smallmouth and largemouth bass: a third of all male smallmouth bass and a fifth of all male largemouth bass were intersex. (freshwater.org)
  • Most natural cloning occurs in those species that produce their descendants asexually, that is, without combining the male and female genetic material. (who.int)
  • Although many species produce clonal offspring in this fashion, Dolly, the lamb born in 1996 at a research institute in Scotland, was the first asexually produced mammalian clone. (who.int)
  • Rearing Anopheles species of medical importance under laboratory conditions allows researchers to carry out experiments to better understand their genetics, physiology, and behavior. (cdc.gov)
  • Unlike some other mosquito species, Anopheles eggs cannot be desiccated and stored for long durations, and, hence, colonies must be reared continuously. (cdc.gov)
  • For most Anopheles species, larval-pupal metamorphosis commences 1 wk after egg hatching. (cdc.gov)
  • He and many others argue that it is immoral to create embryos for research purposes and recruit women to donate eggs. (voanews.com)
  • Some prohibit only cloning for reproductive purposes and allow the creation of cloned human embryos for research, whereas others prohibit the creation of cloned embryos for any purpose. (who.int)
  • Four of the adult frogs-or ten percent-developed into what looked like perfectly normal females. (nationalgeographic.com)
  • They suspect the eggs and some juvenile and adult individuals were washed away from a nesting site in a storm and into the lake, where they were preserved and later fossilized. (deccanchronicle.com)
  • As many hunters have observed, adult sex ratios in dabbling ducks are typically skewed, with significantly more males available than females. (ducks.org)
  • The presence of adult males and females, developing eggs, and octopus hatchlings indicated that the nursery is used exclusively for reproduction. (klfy.com)
  • No external differences in sex are seen until the turtle becomes an adult, the most obvious difference being the adult males have thicker tails and shorter plastrons (lower shells) than the females. (wikipedia.org)
  • Objective: To determine whether long-term sun exposure has a protective role in subclinical cardiovascular disease in adult Mexican women. (bvsalud.org)
  • The nucleus of an adult somatic cell (such as a skin cell) is removed and transferred to an enucleated egg, which is then stimulated with electric current or chemicals to activate cell division. (who.int)
  • This protocol also provides instructions on how to differentiate male and female adult mosquitoes. (cdc.gov)
  • During the 30-day experiment, the follicle grew and produced hormones and the immature egg matured just as it would inside a woman's body. (nih.gov)
  • Others say the the study is convincing but requires much more research. (bostonmagazine.com)
  • In previous attempts to grow follicles, researchers had set the follicles on a flat surface, which the study authors now believe does not mimic closely enough conditions inside the body. (nih.gov)
  • For the current study, the researchers started with so-called secondary follicles, which are at an intermediate stage of development. (nih.gov)
  • One of the most common weed-killers in the United States can transform male frogs into fully functional females, a new study says. (nationalgeographic.com)
  • The so-called pregnant man has company: One of the most common weed killers in the United States can make male frogs lay eggs, a new study says. (nationalgeographic.com)
  • Female Podisus maculiventris stink bugs can control the color of eggs they lay, according to a study published in Current Biology last week (July 23). (the-scientist.com)
  • Our study offers the first example of an animal able to selectively control the color of its eggs," Montréal's Paul Abram and his colleagues wrote in their paper. (the-scientist.com)
  • The study by researchers at Princeton University was published Nov. 15 in the journal eLife . (princeton.edu)
  • A study of mallards in Manitoba revealed that 17 to 25 percent of clutches of eggs examined were the product of more than two parents. (ducks.org)
  • One study of mallards estimated that at least half of females were involved in multiple mating events. (ducks.org)
  • As part of the study, Noggle and his colleagues developed new protocols that allow women to choose between giving their eggs to research or in vitro fertilization programs. (the-scientist.com)
  • In a new study published Wednesday in "Science Advances ," researchers confirmed that octopus migrate to the Octopus Garden to mate and nest their eggs. (klfy.com)
  • We tracked individuals from among the thousands at this nursery and discovered that eggs, which at those temperatures would be expected to take five years or longer to hatch, surprisingly hatched in less than two years," said Moss Landing Marine Laboratories and San Jose State University professor Amanda Kahn, who co-authored the study. (klfy.com)
  • Mothers must equip each egg with sufficient energy (yolk) to support the costs of embryonic development and early juvenile success … but must also retain enough energy to sustain maternal care throughout incubation," the study states. (klfy.com)
  • We have successfully overcome the technical difficulty by reducing the oocyte size," says Atsuo Ogura of the RIKEN BioResource Research Center, who led the study. (riken.jp)
  • A study by the European Society of Human Reproduction & Embryology, (ESHRE) analysing over 400,000 IVF cycles carried out in the UK, shows that doctors should only try to retrieve just 15 eggs at any one time for the best IVF results. (gettingpregnant.co.uk)
  • According to a news release from the university, the study involved 16 participants who consumed a raw mixed-vegetable salad with no eggs, a salad with one and a half eggs, and a salad with three eggs at different times. (thirdage.com)
  • The study used scrambled eggs to make sure the participants consumed both the yolk and egg whites. (thirdage.com)
  • Kevin Maki, of Biofortis Clinical Research, completed the study in collaboration with Leidy. (missouri.edu)
  • The National Birth Defects Prevention Study is a population-based study that currently incorporates data from birth defects research centers in Arkansas, California, Georgia, Iowa, Massachusetts, New Jersey, New York, North Carolina, Texas and Utah. (cdc.gov)
  • Materials and Methods: We conducted a cross-sectional analysis of a sample of women from the Mexican Teachers' Cohort (MTC) study. (bvsalud.org)
  • A research study at Lund University shows that there is an association between selenium deficiency and an increased risk of developing heart failure. (lu.se)
  • In this current study, published in the journal Free Radical Biology and Medicine, the researchers observed that selenium deficiency is also associated with an increased risk of developing heart failure in individuals who do not have a known history of heart disease. (lu.se)
  • The researchers used data from the prospective epidemiological heart failure study Malmö Preventive Medicine, which included 4,803 individuals (average age 70 years, of which 29.1 percent were women). (lu.se)
  • The technique focuses on the follicle, a tiny sac within the ovary that contains the immature egg. (nih.gov)
  • An additional benefit is that it will allow researchers to more closely follow the process by which immature eggs grow and mature. (nih.gov)
  • Male eggs are laid on provision masses that are smaller than those that female eggs are laid on. (wikipedia.org)
  • The other two frogs mated with males and laid eggs that hatched and grew to adulthood. (nationalgeographic.com)
  • Once the last egg is laid, the male may then pursue EPCs. (ducks.org)
  • The researchers suspect that erect-crested penguins retain the reproductive habits of their ancestors, which laid and hatched two eggs. (eurasiareview.com)
  • Females that lay eggs in nests other than their own (known as brood parasites) often mate with resident males. (ducks.org)
  • The mothers waved their arms to circulate water among the eggs and swatted away scavengers trying to invade nests in their nursery. (klfy.com)
  • Upon further investigation, researchers confirmed the octopus nests were clustered in crevices bathed by hydrothermal springs where warmer waters flow from the seafloor. (klfy.com)
  • These earlier attempts failed to develop good quality eggs that were healthy enough for fertilization. (nih.gov)
  • While women have always been paid for donating their eggs for in vitro fertilization, ethical guidelines have prevented researchers from paying women for their eggs. (the-scientist.com)
  • As most women will not donate altruistically, this has left researchers working with the poor-quality eggs rejected from in vitro fertilization. (the-scientist.com)
  • According to the researcher's new protocols, women are paid to donate, but only later choose whether their eggs should go to research or in vitro fertilization. (the-scientist.com)
  • Eggs of sterlet are discharged outside into ambient aquatic environment where egg activation and fertilization occur. (lu.se)
  • In conclusion, external fertilization in sturgeon egg is accompanied by huge release of proteins into the external environment that may participate in the construction of a transient microenvironment around egg for attraction and protection of spermatozoa to ensure ensuing fertilization. (lu.se)
  • Between 2000 and 2010, the number of pregnancies using donor eggs increased, resulting in a greater number of healthy IVF births. (medicaldaily.com)
  • Researchers are hoping to create donor eggs that possess mutation-free mitochondrial DNA, leaving the nucleus to be fertilized by the other two parents. (gizmodo.com)
  • In order to better appreciate the role of stem cell research in reproductive medicine, there is a need to understand the critical biological principles of stem cell research and its potential applications to medicine. (jcpa.org)
  • While there is a great deal published on the potential medical applications of stem cell research to treat or cure diseases such as diabetes, Alzheimer's disease, Parkinson's disease, cancer, and heart disease, much less has been published on the future impact of stem cell research in reproductive medicine. (jcpa.org)
  • Researchers at the University of Birmingham , Department of Reproductive Medicine & Surgery analysed over 15 years of IVF data supplied by the Human Fertilisation and Embryology Authority ( HFEA ) . (gettingpregnant.co.uk)
  • Extensions are allowed only if a woman is facing premature infertility, such as early menopause. (sciencedaily.com)
  • The egg adjustment also allowed for the production of pups from mouse spermatocytes containing a genetic defect linked to male infertility in humans. (riken.jp)
  • The approach could also be used to help treat women suffering from infertility. (kpcw.org)
  • According to data from the 2002 National Survey of Family Growth, almost 12 percent of U.S. women aged 15-44 years have reported using infertility services. (cdc.gov)
  • For women experiencing infertility who may also be overweight, healthy lifestyle changes can help. (medlineplus.gov)
  • Is it ethical for the researchers to move ahead with this project? (medpagetoday.com)
  • News reports quote South Korean President Roh Moo-hyun as saying that his government will try to resolve the ethical issues surrounding stem cell research so that the scientists can continue their work. (voanews.com)
  • KAGAN: Supporters of therapeutic cloning say it holds tremendous promise of medical research, but ethical concerns arise because the research destroys human embryos. (cnn.com)
  • Ethical concerns relate to the risk of causing physical and psychological harm, lack of respect for ethical research standards, exploitation of the poor and conflict of interest if financial interests are involved. (who.int)
  • 3 The resolution recognizes the need to respect the freedom of ethical scientific research and to ensure access to the benefits of its application. (who.int)
  • Typically, male snow geese will pursue EPCs with neighboring females that already have a mate. (ducks.org)
  • Somatic cell nuclear transfer typically involves the transfer of genomic information from a somatic cell into an unfertilized egg cell whose nucleus has been removed. (the-scientist.com)
  • Gravid (i.e., with fully developed eggs), mated Anopheles females typically lay their eggs directly on water 48-72 h after a blood meal. (cdc.gov)
  • Like octopus hatchlings, the young of this shrimp also emerge from their eggs as fully developed miniature adults. (mbari.org)
  • Current birds sacrifice the first egg, since they can't provide enough food for two hatchlings. (eurasiareview.com)
  • They brood their eggs for five years, and when the eggs finally hatch, the mother dies. (klfy.com)
  • Most female octopuses lay only one set of eggs and die about the time that their eggs hatch. (mbari.org)
  • Because the young octopus spend so much time in their eggs, by the time they hatch they are fully capable of surviving on their own and hunting for small prey. (mbari.org)
  • When it rains or water covers the eggs, they hatch and become adults in about a week. (cdc.gov)
  • Nor do we know if the statutory time limit is shaping women's decisions about when to freeze their eggs. (sciencedaily.com)
  • More research is needed into how the 10-year time limit shapes women's decisions about the freezing and subsequent use of their eggs. (sciencedaily.com)
  • This may explain why older women have always been thought to have a higher risk of having a Down's syndrome baby, since older women's eggs are more likely to be abnormal. (healthy.net)
  • Even today, public health authorities keep detailed records on disabled women's contraceptive use, and no records at all on what happens if and when those same women get pregnant. (latimes.com)
  • The researchers randomly treated 24 male mice trapped at five sites in Huntingdon County, Pa. (vetscite.org)
  • The trapping sites were innovatively positioned to represent a large grid and mice were electronically tagged so researchers could keep precise track of where the animals were being recaptured. (vetscite.org)
  • Tests on recaptured mice indicated that the average number of contacts made between both males and females by mice that received the treatment - sham and testosterone - increased significantly increased after treatment. (vetscite.org)
  • He probes the male mouse's reaction to chemical signals from female mice to advance understanding of pattern recognition and learning in the much more complex human brain. (vetscite.org)
  • Females clean and defend their progeny into adulthood. (wikipedia.org)
  • Throughout this time, the female kept the eggs clean and guarded them from predators. (mbari.org)
  • The female must also guard her eggs vigilantly to prevent them from being eaten by predators. (mbari.org)
  • Instead of removing the egg genome prior to nuclear transfer, he and his colleagues added the somatic cell nucleus directly to the intact egg. (the-scientist.com)
  • For the first time researchers can now compare iPSC differentiation to the same process an egg goes through after the transfer of a somatic cell genome. (the-scientist.com)
  • Researchers from the University of Glasgow had a hunch that the second colony may have come from dormant eggs reawoken after heavy rains, so they set out to search for more sleeping colonies. (macleans.ca)
  • About the National Institutes of Health (NIH): NIH, the nation's medical research agency, includes 27 Institutes and Centers and is a component of the U.S. Department of Health and Human Services. (eurekalert.org)
  • The research data sends a very clear message, says Dr. Tim McAfee of the Centers for Disease Control and Prevention: Don't start smoking, but if you already have, the benefits of quitting are enormous. (theweek.com)
  • females lay an average of four egg clutches and then become quiescent , producing no eggs for two to three years. (wikipedia.org)
  • While other egg forms were not tested, we believe the results would be comparable as long as the egg yolk is consumed," said Campbell, whose research also has looked at salads with different amounts of soybean oil, canola oil and butter. (thirdage.com)
  • For the next step, researchers will need to induce the egg's final division, so that it contains only half the genetic material of its precursors. (nih.gov)
  • Israeli policy is based on the belief that such a pre-embyro does not confer personhood and that many therapeutic applications can be derived from such research. (jcpa.org)
  • According to new evolutionary biology research, the reasons why can be seen in more evolutionarily simple mammals. (thecut.com)
  • As researchers Mihaela Pavličev of the University of Cincinnati and Günter Wagner of Yale Medical School observe in a new paper in Experimental Zoology, these simpler mammals have "male-induced ovulation," meaning that an egg only gets released during during sex. (thecut.com)
  • For simpler mammals, the female orgasm was (and is) crucial for making babies. (thecut.com)
  • Researchers have demonstrated that some goose broods contain offspring from two or more males. (ducks.org)
  • The South Korean government has established an international stem cell research program with scientists in the United States and Britain. (voanews.com)
  • The collaboration gives U.S. researchers a way to overcome funding restrictions imposed by the Bush administration and participate in stem cell research. (voanews.com)
  • According to the English-language newspaper South Korea Herald , the Ministry of Health and Welfare says the new World Stem Cell Hub combines South Korean expertise in stem cell research with broader U.S. and European knowledge of diseases. (voanews.com)
  • U.S. stem cell research has lagged because of Bush administration funding restrictions. (voanews.com)
  • I applaud what they are doing, but I regret that the United States is falling farther behind in world leadership in scientific research generally and specifically on stem cell research,' said Mr. Specter. (voanews.com)
  • Stem cell research is, in part, a quest to understand cellular differentiation, the process by which a human being develops from one fertilized cell into a multicellular organism composed of over 200 different cell types - for example muscle, nerve, blood cell, or kidney. (jcpa.org)
  • South Korean researchers would travel regularly to the labs to perform the complex task of creating embryos outside the womb and extracting new stem cell lines American, British, and other scientists could use for experiments on cures. (voanews.com)
  • South Korean scientists say they have taken a major step forward in cloning human embryos for medical research purposes. (cnn.com)
  • The 10 year statutory time limit on the storage of human eggs should be scrapped to allow women to freeze their eggs for longer periods, according to new research. (sciencedaily.com)
  • The Human Fertilisation and Embryology Act 1990, updated in 2008, allows eggs to be stored for up to ten years. (sciencedaily.com)
  • The research team was led by Kyle E. Orwig, Ph.D., of the University of Pittsburgh School of Medicine and was funded by the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), part of the National Institutes of Health. (eurekalert.org)
  • The researchers have developed a method to advance undeveloped human eggs to near maturity, in laboratory cultures maintained outside the body. (nih.gov)
  • The researchers were able to grow human follicles in the laboratory for 30 days, until the eggs they contained were nearly mature. (nih.gov)
  • Finally, the researchers will have to demonstrate that they can freeze and thaw human follicles before growing them in culture. (nih.gov)
  • The new technique could provide an option for women and girls who have cancer and are not yet ready to start families," said Duane Alexander, M.D., director of NIH's Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), which manages this research, which was funded by the NIH Common Fund as part of an NIH Roadmap Interdisciplinary Research Consortium initiative. (nih.gov)
  • The researchers made the new advance by suspending the human follicle in a three-dimensional matrix of a gel-like material. (nih.gov)
  • Harvard geneticist George Church, PhD, has explained that once such DNA is reassembled inside a human cell, either a chimpanzee or an "extremely adventurous female human" might bring the clone to term. (medpagetoday.com)
  • Understanding human [eggs'] ability to reprogram could shed light on improved methods for reprograming," said Noggle. (the-scientist.com)
  • YOON-YOUNG (through translator): The result of our research proves it is possible scientifically for human cloning, and we are likely to revive the controversy over human cloning. (cnn.com)
  • The latest IVF research published online in May 2011 in Human Reproduction shows that to achieve the best results doctors should only retrieve 15 eggs in a single cycle to ensure your chances of a successful pregnancy through IVF. (gettingpregnant.co.uk)
  • The female orgasm might be vestigial, but compared to sinuses or goose bumps, it helps human life way more. (thecut.com)
  • Health researchers expect human leishmaniasis to follow the spread of Phlebotomus flies into regions of increasing warmth and humidity. (medicinenet.com)
  • Doug Turnbull and his fellow researchers at Newcastle University have created 80 human embryos using this method, but it's currently illegal to place these embryos in a mother's uterus. (gizmodo.com)
  • Dr. Halvorson is the chief of the Gynecological Health and Disease Branch of the Division of Extramural Research at the Eunice Kennedy Shriver National Institute of Child Health and Human Development, a division of NIH. (medlineplus.gov)
  • Children born to women with gestational diabetes and obesity were twice as likely to be diagnosed with ADHD than those born to mothers who did not suffer from those conditions. (neurosciencenews.com)
  • They also note that global trends in obesity make research like this important. (bigthink.com)
  • Researchers in Australia have done recent studies on the effects that obesity has on the woman's eggs. (wdxcyber.com)
  • Women with PCOS also have an increased risk for sleep apnea, metabolic syndrome, type 2 diabetes, obesity, heart disease and high blood pressure, and endometrial cancer. (medlineplus.gov)
  • Before the age of 40, the risk of miscarriage is about 15 per cent, and it can rise to about 40 per cent in women over the age of 40, mostly because of genetic abnormalities. (healthy.net)
  • Researchers are trying to better understand the genetic link. (medlineplus.gov)
  • 5. Most countries in the African Region have no specific regulations and policies governing genetic manipulations for assisted conception, treatment and research. (who.int)
  • However, an animal created through this technique would not be a precise genetic copy of the source of its nuclear DNA because each clone derives a small amount of its DNA from the mitochondria of the egg (which lie outside the nucleus) rather than from the donor of cell nucleus. (who.int)
  • While male guppies also showed differential predator responses with varying experimental predation setups, the researchers did not find an association between their brain size and behavior. (the-scientist.com)
  • Sun exposure was assessed in the MTC 2008 baseline questionnaire, in which women were asked about their sun-related behavior. (bvsalud.org)
  • This posture indicated pearl octopus (Muusoctopus robustus) mothers were protecting or brooding their eggs. (klfy.com)
  • Thanks to MBARI's advanced marine technology and our partnership with other researchers, we were able to observe this unique hotspot of life on the deep seafloor in tremendous detail, which helped us discover why so many deep-sea octopus gather there. (klfy.com)
  • Marine researchers have discovered a handful of Octopus Gardens off the coast of Costa Rica. (klfy.com)
  • In May 2007, during one of these surveys, the researchers discovered a female octopus clinging to a rocky ledge just above the floor of the canyon, about 1,400 meters (4,600 feet) below the ocean surface. (mbari.org)
  • The last time the researchers saw the brooding octopus was in September 2011. (mbari.org)
  • After counting the remnants of the egg capsules, the researchers estimated that the female octopus had been brooding about 160 eggs. (mbari.org)
  • This means that the female octopus must continuously bathe the eggs in fresh, oxygenated seawater and keep them from being covered with silt or debris. (mbari.org)
  • In their recent paper, the researchers point out that octopus eggs, like those of other invertebrates, develop more slowly in cold water. (mbari.org)
  • This photograph, taken in October 2011, shows the empty egg cases of an octopus that brooded her eggs for four and one half years. (mbari.org)
  • Because they developed so long in their eggs, the young octopus had a better chance of survival after they hatched. (mbari.org)
  • However, Professor Jackson, points out that a woman would be ill-advised to freeze her eggs at the optimum clinical time because the statutory storage time limit will require her eggs to be destroyed after 10 years. (sciencedaily.com)
  • It is now clear that time limits on storage are not required on safety grounds," says Professor Jackson in her paper 'Social' egg freezing and the UK's statutory storage time limits, published in the latest edition of the Journal of Medical Ethics . (sciencedaily.com)
  • But this could easily be achieved by allowing for rolling time-limited extensions, as happens for women who are prematurely infertile. (sciencedaily.com)
  • She concludes: "Because social egg freezing is in its infancy, we do not know what practical impact the 10-year time limit will have upon women who have frozen their eggs. (sciencedaily.com)
  • It seems likely that women faced with the imminent destruction of their eggs will feel under pressure to use their eggs before time runs out for them, ironically perhaps creating a newly ticking non-biological clock. (sciencedaily.com)
  • The current rules allow for extraordinarily long extensions of storage, for up to 55 years, at the same time as ruling out short extensions for women who suffer natural age-related fertility decline. (sciencedaily.com)
  • Now, for the first time, researchers using positron emission tomography scans have diagnosed CTE in living patients, raising hopes that doctors can intervene earlier "rather than try to repair damage once it becomes extensive," Gary Small, a psychiatry professor at the Semel Institute, tells The New York Times . (theweek.com)
  • When we looked specifically at the duration of sunshine around the time the eggs were collected, we saw a similar increase to that seen for egg collection during the summer," said Dr Leathersich. (sciencedaily.com)
  • This amazing feat represents an evolutionary balancing act between the benefits to the young octopuses of having plenty of time to develop within their eggs, and their mother's ability to survive for years with little or no food. (mbari.org)
  • One type of mysid (a shrimp relative that is abundant in depths of Monterey Canyon) carries its eggs for 20 months and goes without food the whole time. (mbari.org)
  • Women have even more reason to take time for a good breakfast. (missouri.edu)
  • Previous research has shown that extreme increases in glucose and insulin in the blood can lead to poor glucose control and increase an individual's risk of developing diabetes over time. (missouri.edu)
  • So how do you find eggs from hens that actually spend a lot of time outside? (kjrh.com)
  • Most of the time, PCOS is diagnosed in women in their 20s or 30s. (medlineplus.gov)
  • A panel of government advisers has expressed serious concerns about a controversial proposal to allow scientists to try to make babies using eggs that have been genetically altered to include DNA from another woman. (kpcw.org)
  • We have developed a technique that would allow a woman to have a child that is not affected by this disease, and yet the child would be related to her genetically," Dieter Egli of the New York Stem Cell Foundation told NPR in October. (kpcw.org)
  • Thus, the clone would be genetically identical to the nucleus donor only if the egg came from the same donor or from her maternal line. (who.int)
  • The researchers have demonstrated that the technique produces healthy eggs," said Charisee Lamar, Ph.D., M.P.H., R.R.T., director of the Fertility Preservation Program in NICHD's Reproductive Sciences Branch. (nih.gov)
  • A healthy male frog (bottom) mates with a male turned female by exposure to the chemical atrazine. (nationalgeographic.com)
  • They argue it would help women with diseases caused by problems with a type of DNA known as mitochondrial DNA to have healthy babies. (kpcw.org)
  • If true, this could be a huge boon for women, who've long been told they can produce only so many eggs in their lifetime - the same reason why elderly women can no longer have children. (bostonmagazine.com)
  • in order to produce successful female offspring, the mother bee must do more work foraging compared to the work needed to produce male offspring. (wikipedia.org)
  • Even if it is applied, we never know whether the eggs are safe enough to produce (a) baby," Hayashi said. (ball-pythons.net)
  • Do women produce new eggs as they age? (contemporaryobgyn.net)
  • The females need a blood meal to produce eggs. (medicinenet.com)
  • She raises hens on her family's property and eats the eggs they produce. (kjrh.com)
  • Many women with PCOS experience trouble getting pregnant since they may not ovulate, or produce eggs. (medlineplus.gov)
  • In sexual reproduction, clones are created when a fertilized egg splits to produce identical (monozygous) twins with identical genomes. (who.int)
  • JIE-AE: And scientists also caution it will take years of further research before stem cell science turns into actual therapies. (cnn.com)
  • Erect-crested penguins engage in a reproductive habit called brood reduction where birds lay more eggs than they can rear. (eurasiareview.com)
  • The nucleus of this egg is then removed and placed in another, emptied nucleus. (gizmodo.com)
  • Mitochondrial DNA is passed on exclusively by the mother, but some women carry mutations in their mitochondria that can cause severe health problems for their children. (gizmodo.com)
  • By combining the current anti-mullerian hormone (AMH) and antral follicle count (AFC) tests with the researchers' nomogram mathematical model, fertility specialists will be able to work out the correct amount of ovarian stimulation needed to collect 15 eggs and help avoid OHSS. (gettingpregnant.co.uk)
  • Researchers funded by the National Institutes of Health have completed a critical first step in the eventual development of a technique to retain fertility in women with cancer who require treatments that might otherwise make them unable to have children. (nih.gov)
  • Before the technique will ever make it to the clinic, however, researchers must find a way to remove genomic material from the egg cell. (the-scientist.com)
  • Remember this research shows that a year or two really does make a difference to your chances of having a baby as you get older. (gettingpregnant.co.uk)
  • All women make small amounts of male hormones, known as androgens, but women with PCOS make even more. (medlineplus.gov)
  • This ability to selectively control egg color could help stink bug mothers improve their offspring's chances of survival, researchers from the Université de Montréal and their colleagues reported. (the-scientist.com)
  • Researchers have not yet created any specific fertility treatments to help heavy women. (wdxcyber.com)
  • Once you find a doctor that will work with you, you'll undergo the same fertility treatments including IVF , IUI or other treatment options other women have. (wdxcyber.com)
  • The proof-of-concept research, the culmination of years of pain-staking lab work, could expand the possibilities for future fertility treatments, including for same-sex couples, and perhaps help prevent the extinction of endangered animals. (ball-pythons.net)
  • If eggs were collected in autumn, it was 26 births per 100 people, but if they were collected in summer there were 31 births per 100 people. (sciencedaily.com)
  • They created a mathematical model called a nomogram , which showed a relationship between a woman's age, the number of retrieved eggs and the number of predicted births. (gettingpregnant.co.uk)
  • Already in 2019, our research group demonstrated that selenium deficiency is linked to a worsened prognosis in patients with established heart failure, says Martin Magnusson, cardiologist at Skåne University Hospital, adjunct professor at Lund University, and Clinical Fellow at the Wallenberg Center for Molecular Medicine. (lu.se)
  • Studies show that female mosquitoes prefer to lay eggs in water that collects or is stored in manmade containers. (cdc.gov)
  • Aedes aegypti mosquitoes lay eggs on the walls of water-filled containers. (cdc.gov)
  • Keep mosquitoes from laying eggs inside and outside of your home. (cdc.gov)
  • If water must be stored, tightly cover storage containers to prevent mosquitoes from getting inside and laying eggs. (cdc.gov)
  • Research has shown that when community-wide distribution systems are built, the number of mosquitoes decreases, because water is not being stored near areas where people live. (cdc.gov)
  • Both male and female Anopheles mosquitoes require access to a source of sugar to survive. (cdc.gov)