• More successful IVF, egg cells from men, and sperm cells from women? (bostonglobe.com)
  • Or even same-sex couples to create sperm from biological females or eggs from biological males and conceive children who are genetically related to both parents. (bostonglobe.com)
  • Now, a study has found that, in zebrafish, time-restricted eating had negative effects on the quality of both sperm and eggs and that the adverse effects continued after usual feeding resumed. (medicalnewstoday.com)
  • In the 15-day experimental period and after the return to unrestricted feeding, the researchers assessed both somatic (body) growth (by measurement of the tail fin) and reproductive performance, including the quality of eggs and sperm produced. (medicalnewstoday.com)
  • But the way organisms respond to food shortages can affect the quality of eggs and sperm, and such effects could potentially continue after the end of the fasting period. (medicalnewstoday.com)
  • The interviews revealed that 40 percent were "definitely willing" to have their eggs fertilized with donor sperm and become single parents, with 40 percent undecided about conceiving without a partner. (chinadaily.com.cn)
  • They become an egg in the female ovaries or sperm in the male testes. (dana-farber.org)
  • 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)
  • However scientists believe that it may be possible to take the eggs and sperm from the remaining animals and create an embryo through IVF which could be implanted in a surrogate mother. (telegraph.co.uk)
  • If that plan fails, the team want to try mixing the sperm from the last male northern white rhino with Longleat's females, to create a hybrid which could save 50 per cent of its DNA. (telegraph.co.uk)
  • Effectively the female rhinos would act as IVF mothers, with embryos partly derived from northern white male sperm," added Darren Beasley, head of animal operations at Longleat. (telegraph.co.uk)
  • The team has so far managed to create early embryos from the sperm and eggs of southern rhinos which have been cryogenically frozen but none have been implanted back into a rhino. (telegraph.co.uk)
  • 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)
  • The physics of how sperm navigate their way to an egg in mammals, including humans, are not well understood. (frontiersin.org)
  • The tendency for sperm to cluster together as they make their way upstream through the thickish, elastic-like fluid of the female reproductive tract is more than just random behavior. (frontiersin.org)
  • Researchers have found biological benefits for sperm working together that may have implications for fertility studies. (frontiersin.org)
  • This is the type of fluid encountered by sperm migrating through the cervix and uterus to the oviduct where the egg is fertilized. (frontiersin.org)
  • In a series of experiments using bovine sperm (a good model for the human variety) and a microfluidic device to mimic the physical parameters of the female tract, they observed how sperm clustered in viscoelastic fluid reacted to different flow scenarios. (frontiersin.org)
  • Better understanding the physics of how sperm navigate through the complicated female reproductive tract to fertilize the egg may have implications for infertility treatments and beyond. (frontiersin.org)
  • In a woman's lifetime perhaps 400 will become full-grown eggs capable of being fertilized by sperm. (discovermagazine.com)
  • In males, age is known to reduce the quality of sperm, which affects the sperm's ability to reach or fertilize an egg. (nih.gov)
  • 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)
  • 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)
  • Almost all cases of this condition result from new (de novo) variants in the CDKL5 gene that occur during the formation of reproductive cells (eggs or sperm) or in early embryonic development. (medlineplus.gov)
  • China Launches Campaign Against Illegal Fertility Treatments China will 'severely crack down' on illegal activities related to the use of assisted reproductive technologies such as the buying or selling of sperm or eggs and surrogacy, in a 6-month campaign to assuage widespread public concern. (medscape.com)
  • COVID Could Impair Men's Sperm for Months: Study A COVID infection can reduce sperm count and hinder the ability of sperm to swim for at least 3 months, according to European researchers. (medscape.com)
  • During in vitro fertilization, sperm from the man and several eggs from the woman are placed in a culture dish. (msdmanuals.com)
  • The sperm fertilizes the egg and the resulting cell divides, forming an embryo. (msdmanuals.com)
  • 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)
  • Currently, women undergoing IVF must take a series of extremely expensive hormone injections to stimulate their ovaries to mature eggs, which can cause cramping, bloating, headaches, mood disruptions, and painful ovarian swelling. (bostonglobe.com)
  • The results show that, of a group of women in their 30s who sought medical fertility help, those with blood type O were more likely than women with other blood types to have diminished ovarian reserve, meaning their ovaries had few eggs or had eggs unlikely to meet with success during in vitro fertilization procedures . (livescience.com)
  • There is a lesser number of eggs in those ovaries. (livescience.com)
  • Dr Suh and Columbia University researcher Dr Zev Williams are spearheading the study, called Validating Benefits of Rapamycin for Reproductive Aging Treatment (VIBRANT), to trial whether or not rapamycin can have the same longevity properties on a woman's ovaries. (dailymail.co.uk)
  • By the time a woman is in her thirties, her ovaries are already rapidly declining. (dailymail.co.uk)
  • 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)
  • They must inject themselves daily for four weeks with large doses of hormones to encourage their ovaries to produce numerous mature oocytes while simultaneously suppressing the normal menstrual cycle, which would eject the eggs into the fallopian tubes. (discovermagazine.com)
  • The process ends with major surgery, complete with general anesthesia, as a surgeon pierces a donor's vaginal wall with a needle and sucks the eggs out of the ovaries. (discovermagazine.com)
  • As part of his vision of a dystopian future, Huxley took readers on a tour of a human hatchery where eggs matured in carefully maintained ovaries before being fertilized and developed in bottles. (discovermagazine.com)
  • Kisspeptin activity in the brain occurs at the top level of the cascade of neural and hormonal processes that eventually lead to ovaries releasing eggs. (medindia.net)
  • The decrease in fertility accelerates over time because of the reduction in the number and quality of eggs in the ovaries. (nih.gov)
  • New research suggests that researchers may be able to create eggs from stem cells in the ovaries. (nih.gov)
  • Oocyte formation by mitotically active germ cells purified from ovaries of reproductive-age women. (nih.gov)
  • The proposal is to use a test that measures anti-mullerian hormone (AMH), which is secreted by growing follicles (egg sacs) in a woman's ovaries - the AMH test is also sometimes called the 'egg timer' or 'ovarian reserve' test. (abc.net.au)
  • Researchers from the U.K. have created human embryos with DNA from three parents, though those embryos were sustained only in a lab and never meant for reproduction. (livescience.com)
  • The researchers took these X-only (or "XO") cells and injected them into normal mouse embryos, which they then implanted in a surrogate mother mouse. (livescience.com)
  • Until now, no pterosaur eggs had been found with embryos preserved in three dimensions. (deccanchronicle.com)
  • There had been a paucity of pterosaur eggs and embryos in the paleontological record because it is difficult for soft-shelled eggs to fossilize. (deccanchronicle.com)
  • If the procedure works, the hope would be that southern white females would carry the developing embryos for up to 18 months before giving birth. (telegraph.co.uk)
  • The researchers then transferred 11 embryos into female macaques, resulting in one pregnancy and subsequent live birth. (eurekalert.org)
  • Before turtles are hatched - when they're just tiny embryos inside their eggs - they may be able to influence whether they will become male or female, according to a study in China. (kpbs.org)
  • And they wondered whether turtle embryos were doing something inside the egg to shield themselves from these shifts. (kpbs.org)
  • Du had the idea that "perhaps the embryos of reptiles could move around within the egg because it might be a little bit warmer at one end of the egg than the other," Shine said. (kpbs.org)
  • The embryos in eggs painted with the drug were relatively inactive and took longer to hatch. (kpbs.org)
  • It's worth noting that the researchers don't think the embryos were making a conscious choice to become male or female. (kpbs.org)
  • Other information gathered from shards of eggshells discovered later indicates that some of the eggs had been incubated, and therefore contained embryos at an advanced stage of development. (go.com)
  • A linkurl:report;http://stemcells.alphamedpress.org/cgi/reprint/2007-0252v1.pdf published online today that researchers have cloned human embryos is not that much of an advance, according to one stem cell expert, Douglas Melton, at Harvard University. (the-scientist.com)
  • So far, three males, two XX females and five XO females with only daddy-DNA have been born, the researchers reported Nov. 8 in the journal Biology of Reproduction. (livescience.com)
  • Populations with far more females than males may have a tougher time reproducing, and therefore surviving. (kpbs.org)
  • An analysis of blood samples collected from the penguins showed that during laying, females had testosterone levels that were as high as the males. (eurasiareview.com)
  • However, testosterone levels dropped in females during incubation and rose in males, which may help males protect the nest and guard the incubating females from bullying by other birds. (eurasiareview.com)
  • What age-related factors may be involved with infertility in females and males? (nih.gov)
  • Fertility naturally declines as females and males get older. (nih.gov)
  • As if that weren't enough trauma, some males are also producing egg-yolk protein, something only females are supposed to do. (metrotimes.com)
  • The presence of adult males and females, developing eggs, and octopus hatchlings indicated that the nursery is used exclusively for reproduction. (klfy.com)
  • The other two frogs mated with males and laid eggs that hatched and grew to adulthood. (nationalgeographic.com)
  • There was no difference between the feeding rate of adult males and females or between immature males and females. (bioone.org)
  • 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)
  • In attempt to combat this problem, researchers have essentially been-as one doctor described it-taking the "yellow part" of a mother's egg and inserting it into the "white" of a donor's egg. (scientificamerican.com)
  • Though the location of the eggs at the time of the mother's death remains uncertain, the 70-million-year-old fossils hold several more clues to the past. (go.com)
  • The eggs found with the mother's remains are unique, so researchers designated a new type of dinosaur egg called Arraigadoolithidae, named for Alberto Arraigada the owner of the site where the specimen was discovered. (go.com)
  • Another found similar weight loss for women with obesity following an 8:16 fasting plan for 3 months. (medicalnewstoday.com)
  • The researchers found that during the study, there was no difference in somatic growth between the fasted and fully-fed fish. (medicalnewstoday.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)
  • Researchers found that rapamycin increased the lifespan of male and female mice over 90 percent of the time. (dailymail.co.uk)
  • A 2021 study found a 44-percent increase in patients pursing egg freezing within 90 days of initial consultation. (dailymail.co.uk)
  • One study , for example, found that women with menopause-related hot flashes and depressive episodes were more likely to exhibit cognitive weaknesses associated with dementia. (dailymail.co.uk)
  • The researchers found that the follicles would grow if injected into a gelatin mixture. (nih.gov)
  • For example, a 2017 study found that female mice were less likely to become infected with Helicobacter pylori - bacteria that commonly cause intestinal infection - after consuming anti-VacA IgY, an immunoglobulin in egg yolk. (medicalnewstoday.com)
  • For example, a 2017 study found that young men who ate whole eggs immediately after performing resistance exercises had higher rates of muscle metabolism than those who consumed only egg whites. (medicalnewstoday.com)
  • Researchers found the correlations by overlaying the shifting in nesting with carbon dioxide measurements in the atmosphere over that time - tracking changes in the earth's climate. (kbzk.com)
  • Shine said three-keeled pond turtle eggs, which are found in shallow nests where the sun can warm the ground, have areas that are up to eight degrees warmer than the coldest areas. (kpbs.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)
  • When they returned one month later, they found that the female was gone. (mbari.org)
  • In 2003, researchers found that the then recently discovered kisspeptin was a crucial trigger for puberty. (medindia.net)
  • According to the April 28 piece, researchers studying Great Lakes wildlife have found "diminished" penis sizes in the snappers. (metrotimes.com)
  • 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)
  • 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)
  • 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)
  • 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)
  • Researchers in Patagonia recently found skeletal remains of a newly designated genus of dinosaur - Bonapartenykus - near two broken eggshells. (go.com)
  • The researchers say the individual found in Brazil probably reached those waters via natural long-distance larval dispersal. (thefishsite.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)
  • [ 17 ] Women should avoid consuming fats found in processed foods because of their highly saturated nature. (medscape.com)
  • Infertility Treatments Up Risk for Stroke After Childbirth The rate for stroke-related hospitalizations increases as soon as 30 days after delivery and is 66% higher overall, researchers found. (medscape.com)
  • 0.05) difference was found between protein abundances in eggs activated with different media. (lu.se)
  • The researchers found 58 controlled trials. (medscape.com)
  • Egg yolks are the yellow part at the center of an egg. (medicalnewstoday.com)
  • In this article, we explain the benefits and nutritional breakdown of egg yolks. (medicalnewstoday.com)
  • It is worth noting that many of the studies in this review did not test the effects of egg yolks in humans. (medicalnewstoday.com)
  • Researchers have also started exploring the potential of various immunostimulants called immunoglobulins, which are present in egg yolks. (medicalnewstoday.com)
  • The final dietary value of egg yolks varies greatly depending on their preparation. (medicalnewstoday.com)
  • Egg yolks are a plentiful source of many vitamins , especially fat- and water-soluble vitamins. (medicalnewstoday.com)
  • The answer to this much-debated question just became more controversial after a study in the forthcoming issue of Atherosclerosis reported that egg yolks are nearly as bad for your arteries as cigarette smoke. (baumancollege.org)
  • Most people should be eating more eggs - particularly the yolks. (baumancollege.org)
  • The author's claim that regular consumption of egg yolks is about two-thirds as bad as smoking when it comes to increased build-up of carotid plaque, a risk factor for stroke and heart attack. (baumancollege.org)
  • Despite these flaws, the damage to the reputation of egg yolks may already be done. (baumancollege.org)
  • It's very worrisome that these authors of the egg-yolk-is-bad article have managed to come up with a fairly simple and relatively compelling story which will scare a lot of people away from eating egg yolks," Seneff said. (baumancollege.org)
  • The study has potentially serious consequences for people trying to improve their health and reduce their risk of stroke and heart disease - and that's because most people should be eating more eggs, and particularly the yolks, not fewer. (baumancollege.org)
  • Seneff believes that cholesterol has been wrongly vilified and in fact, foods that contain high amounts of cholesterol - like egg yolks and other animal proteins - are key to improving heart health, maintaining a healthy weight, and staving off many diet-related diseases. (baumancollege.org)
  • An article about eggs on the Harvard School of Public Health's website reads, "While it's true that egg yolks have a lot of cholesterol - and so may weakly affect blood cholesterol levels - eggs also contain nutrients that may help lower the risk for heart disease, including protein, vitamins B12 and D, riboflavin, and folate. (baumancollege.org)
  • 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)
  • Using eggs from adult women who had previously donated for successful fertility treatments, the researchers used SCNT to transfer DNA into the egg cells. (the-scientist.com)
  • Non-ART fertility treatments include oral medications or injections used to boost ovulation among women who do not ovulate or to stimulate the development of multiple eggs among women who have trouble getting pregnant. (cdc.gov)
  • Because it is difficult to predict or control the number of eggs that will be fertilized during non-ART fertility treatments, many of these treatments also result in multiple births. (cdc.gov)
  • The following key findings can be used by patients, providers, researchers, and public health specialists to better understand how fertility treatments contribute to multiple births and ways to improve the chance of healthy infant birth when using fertility treatments. (cdc.gov)
  • 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 researchers have developed a method to advance undeveloped human eggs to near maturity, in laboratory cultures maintained outside the body. (nih.gov)
  • We may soon be able to grow unlimited numbers of perfectly healthy, fertilizable human eggs in the laboratory. (discovermagazine.com)
  • Now there is hope of leveling the reproductive playing field somewhat--several recent experiments promise to lead to a vast supply of human eggs. (discovermagazine.com)
  • After taking into account the effects of age, they discovered that women with blood type O were twice as likely as those with blood types A and AB to have FSH levels high enough to indicate they had diminished ovarian reserve. (livescience.com)
  • Women with blood types A and AB were generally less likely than others to have FSH levels indicating diminished ovarian reserve, the study showed. (livescience.com)
  • There were too few women with blood type B in the study for the researchers to determine statistically if their ovarian reserve was affected. (livescience.com)
  • Our results suggest that once a woman is aware of her own poor [ovarian reserve/AMH] status, she is more willing to bring forward her plans to start a family or consider freezing oocytes [eggs],' wrote Kelton Tremellen, a professor of reproductive medicine at Flinders University, and colleagues. (abc.net.au)
  • Researchers say stress may directly impact female fertility and ovarian reserve. (neurosciencenews.com)
  • 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)
  • Gosden and his colleagues explored this idea by freezing strips of ovarian tissue donated by women undergoing medical treatments. (discovermagazine.com)
  • While the industry argues they are driven by consumer demand, it has variously been accused of using unproven treatments , and overselling the success of IVF and egg freezing , preying on many women's desperation to have children at any cost. (abc.net.au)
  • The finding may lead to better stroke treatments and, say the researchers, even shed light on "woman's intuition. (technologyreview.com)
  • Scientist have unearthed more than 215 fossilised eggs belonging to species that soared during the age of dinosaurs. (deccanchronicle.com)
  • I think it's dangerous to look at just one food and deduce that the trend you see is caused by that food," MIT researcher and senior scientist Stephanie Seneff wrote to me in an email regarding the study. (baumancollege.org)
  • First, if researchers were to choose a female scientist to gestate the fetal prehuman, one must consider the health and safety implications for this individual. (medpagetoday.com)
  • It would be hard to call this a major advance," Douglas Melton, a stem cell researcher at Harvard University, told The Scientist in an Email. (the-scientist.com)
  • The technology could eventually be used to breed prize livestock or endangered species in which few or no females remain, according to the researchers. (livescience.com)
  • If the eggs are incubated at 78.8 degrees F, the hatchlings will all be male. (scienceblogs.com)
  • Current birds sacrifice the first egg, since they can't provide enough food for two hatchlings. (eurasiareview.com)
  • Like octopus hatchlings, the young of this shrimp also emerge from their eggs as fully developed miniature adults. (mbari.org)
  • These technologies could enable women who have lost their fertility to age or illness to conceive with their own eggs - and to do so with far less suffering than in vitro fertilization (IVF) currently exacts. (bostonglobe.com)
  • These earlier attempts failed to develop good quality eggs that were healthy enough for fertilization. (nih.gov)
  • Despite the popular idea that the fastest and fittest male reproductive cell is the one that wins the fertilization race, research has shown that spermatozoa often team up to navigate the female reproductive tract in a wide range of mammalian species. (frontiersin.org)
  • When it comes to eggs, though, the success of in vitro fertilization has created a demand far exceeding supply. (discovermagazine.com)
  • Reproductive Technologies Not Tied to Maternal CVD No increase in risk for cardiovascular disease was seen among women who gave birth after in vitro fertilization or the use of other assisted reproductive technologies. (medscape.com)
  • Eggs of sterlet are discharged outside into ambient aquatic environment where egg activation and fertilization occur. (lu.se)
  • 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)
  • 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)
  • Pregnant women must avoid "eggs, non-veg etc" and detach themselves from "desire" and "lust," said a controversial booklet, extracts of which were published in Indian media. (inquirer.net)
  • Pregnant women in India are being advised to stay away from meat, eggs and lust, drawing derision from health experts who slammed the tips Tuesday as completely unscientific. (inquirer.net)
  • Study participants are women who have tried and failed to get pregnant, either naturally or through fertility procedures such as IVF. (dailymail.co.uk)
  • After a woman goes through menopause, there is no way for her to get pregnant naturally. (nih.gov)
  • 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)
  • Many women with PCOS experience trouble getting pregnant since they may not ovulate, or produce eggs. (medlineplus.gov)
  • Of the 475 cases reported, 58 were in pregnant women and 1 had Guillain-Barré syndrome. (cdc.gov)
  • o Zika virus can be passed from a pregnant woman to her fetus during pregnancy or around the time of delivery. (cdc.gov)
  • o Of these, 31 were in pregnant women, 7 were sexually transmitted, and 1 had Guillain-Barré syndrome. (cdc.gov)
  • They appeared to move more and would hatch with a much more even male-to-female ratio. (kpbs.org)
  • 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)
  • They brood their eggs for five years, and when the eggs finally hatch, the mother dies. (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)
  • When it rains or water covers the eggs, they hatch and become adults in about a week. (cdc.gov)
  • Stress also reduced the number and quality of eggs, resulting in smaller litters. (neurosciencenews.com)
  • Usually, most women have eggs frozen to preserve their fertility while they undergo treatment for cancer. (chinadaily.com.cn)
  • 2 The discovery of how to make eggs from stem cells could help women preserve their fertility or could remove age as a factor in infertility. (nih.gov)
  • So scientists collected dozens of eggs in multiple nests and tested them in a variety of temperature conditions. (kpbs.org)
  • And when the animals emerged from their shells, the chemically treated nests were almost all male at lower temperatures or almost all female at higher temperatures. (kpbs.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)
  • 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)
  • 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)
  • There are about 5 million eggs in all the world's collections. (kbzk.com)
  • Researchers currently believe that women are born with 1 million to 2 million eggs and that this number decreases throughout the lifespan. (nih.gov)
  • It is estimated that one female lionfish can spawn more than two million eggs per year. (thefishsite.com)
  • During fasting, females produced fewer offspring, but they were high quality. (medicalnewstoday.com)
  • Female cancer patients have fewer options. (nih.gov)
  • The first egg may be small because it forms as the female migrates to the island, while the second egg, formed on land, has fewer constraints and grows larger. (eurasiareview.com)
  • The survey asked people whether they were aware of the test, which can tell a woman if she has fewer eggs left than others of her age. (abc.net.au)
  • To do so without the multigenerational approach used to produce the mice, scientists would have to coax male cell lines to generate egg cells. (livescience.com)
  • Researchers need to determine whether the relationship between blood type and fertility is consistent across national and global populations, and if it exists in healthy women, Pal said, then scientists need to ask: "How does it work? (livescience.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)
  • Scientists have collected nine eggs from the park's three southern white rhinos, who have failed to mate with their only male, and sent them to specialists in Italy. (telegraph.co.uk)
  • By comparing contemporary observations with eggs preserved in museum collections, scientists discovered that a third of their bird species have shifted when they lay eggs. (kbzk.com)
  • It's a strange and wonderful aspect of reptile biology that in many turtles, all crocodiles and quite a few lizards, the sex that an animal develops into is determined by the temperature that it experiences within the nest when it's inside the egg," said biologist Rick Shine of Macquarie University in Australia, who worked with Chinese scientists on the study published Thursday in Current Biology . (kpbs.org)
  • The researchers who originally discovered the gene that codes for kisspeptin had no idea that it had a role in fertility - it was named in honour of Hershey Kisses, as Hershey was the town in the United States where the scientists were based. (medindia.net)
  • Having just tested the children born as a result of this procedure, the scientists have confirmed that the children's cells contain mitochondria, and hence genes, from two women as well as their fathers. (bbc.co.uk)
  • Scientists unearthed remains of a new kind of dinosaur and eggs in Patagonia. (go.com)
  • Researchers reported the findings to the American Society for Reproductive Medicine conference in New Orleans. (chinadaily.com.cn)
  • The researchers suspect that erect-crested penguins retain the reproductive habits of their ancestors, which laid and hatched two eggs. (eurasiareview.com)
  • They were close to being laid, but the female didn't make it. (go.com)
  • However, when researchers make pluripotent stem cells in the lab, about 1 percent spontaneously lose their Y chromosomes because of natural genetic mistakes. (livescience.com)
  • The researchers write that the techniques could be modified so that "some day two men could produce their own genetic sons and daughters . (livescience.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)
  • Researchers establish connections between Alzheimer's-linked genetic alterations and the functioning of brain cells. (medindia.net)
  • A group of researchers used genetic analysis to show a lionfish, caught with a hand spear by recreational divers, is related to the Caribbean population of invaders. (thefishsite.com)
  • Researchers are trying to better understand the genetic link. (medlineplus.gov)
  • 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)
  • Most natural cloning occurs in those species that produce their descendants asexually, that is, without combining the male and female genetic material. (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)
  • About half of the mice were female chimeras with some XX cells (which came from the normal embryo) and some XO cells, which contained DNA from Father No. 1. (livescience.com)
  • Temperature is a factor in determining whether the embryo will be male or female. (scienceblogs.com)
  • The sex that a turtle develops into is determined by the temperature that an embryo experiences when it's inside the egg. (kpbs.org)
  • In some turtle species, for example, slightly higher temperatures cause the embryo to become female and lower temperatures cause the embryo to become male. (kpbs.org)
  • And by moving to a different part of the egg, the researchers wondered, could an embryo could actually influence its sex? (kpbs.org)
  • Just have to paint it on the egg shell, and you have an embryo inside that's no longer aware of the temperature differences within the egg," Shine said. (kpbs.org)
  • A human female embryo develops around 7 million proto-eggs, known as primordial oocytes. (discovermagazine.com)
  • As a woman ages, the risk increases for miscarriage and for having an embryo with abnormal chromosomes, which can lead to problems with development and loss of the pregnancy. (nih.gov)
  • In fact if women are used to non-veg food, we encourage them to have it during pregnancy as it is a good source of protein and iron," she told AFP. (inquirer.net)
  • Eating the egg white and yolk together in a whole egg provides the right balance of protein, fat, and calories . (medicalnewstoday.com)
  • In comparison with the 2.7 g of protein in the yolk of a single, large egg, the white provides 3.6 g . (medicalnewstoday.com)
  • While the white provides more protein, the yolk contains nearly all of the fat- and water-soluble vitamins and minerals in eggs. (medicalnewstoday.com)
  • After years relegated to the do-not-eat list for fear of cholesterol-raising effects, the humble egg was finally making its way back into mainstream acceptance as a heart-healthy food full of healthy fats and protein. (baumancollege.org)
  • New Zealand researchers have shown kisseptin, a small protein molecule in brain, is a key for ovulation in adults. (medindia.net)
  • 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)
  • 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, 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 people that collected these eggs in 1897 had no idea about the kind of study that they're being used for now in 2022," he said. (kbzk.com)
  • In a first for stem-cell technology, researchers have produced mice with two fathers. (livescience.com)
  • When the female chimeras reached adulthood, the researchers mated them with regular male mice. (livescience.com)
  • In 2018, researchers discovered thousands of octopuses near the base of an extinct volcano, Davidson Seamount, 80 miles off the coast of Monterey. (klfy.com)
  • As a result, says Professor Jackson, most 30-year-old egg freezers would not be eligible for an extension at the age of 40, and they would therefore be unable to use their frozen eggs at the age of 41 or 42, even though this is precisely the age when they are likely to benefit from having frozen their eggs. (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)
  • More women have also frozen their eggs since the Covid-19 pandemic. (dailymail.co.uk)
  • 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)
  • 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)
  • The researchers used zebrafish ( Danio rerio ), small tropical fish which share more than 70% of their genome with humans, for the study. (medicalnewstoday.com)
  • Their study included both male and female participants, which is why they were able to note some key differences between them. (naturalnews.com)
  • WASHINGTON - Some women are choosing to freeze their eggs to take the pressure off finding the right partner, according to the first study of women's motivations to use the service. (chinadaily.com.cn)
  • I don't want the message to be that women in the healthy population should be petrified that their blood type may predict compromised fertility," said study author Lubna Pal, who researches reproductive endocrinology at the Yale University School of Medicine. (livescience.com)
  • Because Pal's study included only women seeking fertility treatment, she cautioned that the findings of her study do not apply to the general population. (livescience.com)
  • If the results of the study are replicated in healthy populations, women with blood type O might start having "the ticking clock conversation" in their early 20s, she said. (livescience.com)
  • The researchers wanted to learn the possible biological benefits of this seemingly strange behavior at a scale and in a setting that's not easy to study - specifically, currents of viscoelastic fluid flowing through narrow channels in the female reproductive tract. (frontiersin.org)
  • He's also the first author of a new study published in the Journal of Animal Ecology that analyzed egg nesting. (kbzk.com)
  • But it appears this latest study may indeed send us back to the days of egg-white omelets and Egg Beaters. (baumancollege.org)
  • The researchers involved in this study, led by Wei-Guo Du at the Chinese Academy of Sciences, were curious about how turtles might have survived temperature shifts in the past. (kpbs.org)
  • The study indicates that disorders affecting the signalling between kisspeptin and the GPR54 receptors will result in women being unable to ovulate, he says. (medindia.net)
  • Lifestyle and pregnancy loss in a contemporary cohort of women recruited before conception: The LIFE Study. (nih.gov)
  • 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)
  • 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)
  • 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 objective of our study was to measure the feeding rate of N. oculata on rugose spiraling whitefly and compare the egg-to-adult development on eggs and nymphs. (bioone.org)
  • Spironolactone Effective Treatment for Women With HS, Study The anti-androgenic agent is used to treat HS in women, but there is a paucity of data on its efficacy and whether certain patient characteristics influence response. (medscape.com)
  • Big Geographic Access Gaps for Oncofertility Services in US A recent study uncovered significant geographic disparities in access to fertility preservation services for young women of reproductive age in the US. (medscape.com)
  • By triggering certain genes, researchers may be able to cause the stem cells to specialize and become the cells that need to be replaced. (msdmanuals.com)
  • But that's only part of the condition-one of the most common hormonal disorders in women of reproductive age. (medlineplus.gov)
  • Male cells normally have one X and one Y chromosome, while females have two X chromosomes. (livescience.com)
  • In females (who have two X chromosomes), a variant in one of the two copies of the CDKL5 gene in each cell causes the disorder. (medlineplus.gov)
  • First, researchers engineered cells from a male mouse fetus - Father No. 1 - to turn the cells into pluripotent stem cells. (livescience.com)
  • Some of the females' egg cells derived from the XO cells. (livescience.com)
  • Those cells contained DNA from Father No. 1 only, so when the female chimeras mated with another male - Father No. 2 - some of the offspring thus had an X chromosome from Father No. 1 and either an X or Y chromosome from Father No. 2. (livescience.com)
  • Researchers Grow Immature Egg Cells in the Laboratory for 30 Days. (nih.gov)
  • Overweight women have more estrogen in their bodies since fat cells produce estrogen. (wdxcyber.com)
  • Researchers hope to use stem cells to repair or replace cells or tissues damaged or destroyed by such disorders as Parkinson disease, diabetes, and spinal injuries. (msdmanuals.com)
  • But researchers think that these stem cells have the most potential for producing different kinds of cells and for surviving after transplantation. (msdmanuals.com)
  • Women's rights activist Posie Parker appeared in New Zealand's Albert Park to deliver a speech about what it means to be a woman. (naturalnews.com)
  • 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)
  • Recent calls for the widespread screening of young women's fertility with the so-called 'egg timer test' has triggered renewed concerns about conflicts of interest in the booming IVF industry. (abc.net.au)
  • This involves taking some of the contents of a donor cell and injecting it into the egg cell of a woman with infertility problems. (bbc.co.uk)
  • The US researchers wanted to supplement a woman's defective mitochondria with healthy ones from a donor. (bbc.co.uk)
  • 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)
  • Overweight women will often find that they either don't ovulate or that they have inadequate or sporadic ovulation. (wdxcyber.com)
  • 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)
  • No one knew whether human ovarian tissue could survive the process--after all, that kind of deep freeze normally kills mature eggs. (discovermagazine.com)
  • It also asked whether having the test would lead them to be more likely to have children sooner or freeze their eggs for later use. (abc.net.au)
  • 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)
  • 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)
  • Until now, researchers have wondered how these juvenile turtles spent their time. (scienceblogs.com)
  • So how do you find eggs from hens that actually spend a lot of time outside? (kjrh.com)
  • Drawers line the walls containing 21,000 sets of eggs or clutches - how many eggs an individual female will lay at a time. (kbzk.com)
  • Throughout this time, the female kept the eggs clean and guarded them from predators. (mbari.org)
  • The last time the researchers saw the brooding octopus was in September 2011. (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)
  • 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)
  • New evidence suggests that mama dinosaur likely perished at the same time as her eggs. (go.com)
  • Examinations of the bones and eggs suggest that they may have been inside the creature at the time of her death. (go.com)
  • Most of the time, PCOS is diagnosed in women in their 20s or 30s. (medlineplus.gov)
  • Woman With Transplanted Uterus Gives Birth to Boy It's the first time that a baby has been born to a woman with a transplanted uterus outside of a clinical trial. (medscape.com)
  • Women born with only one X chromosome are infertile and often face health problems such as congenital heart disease and thyroid disorder. (livescience.com)
  • By mandating the destruction of a woman's eggs during her reproductive lifespan, unless she happens to be prematurely infertile, the rules are illogical and their effects perverse. (sciencedaily.com)
  • The researchers, at the Institute for Reproductive Medicine and Science of St Barnabas in New Jersey, US, believed that some women were infertile because of defects in their mitochondria. (bbc.co.uk)
  • The most common health concern relating to eggs is food poisoning from the bacteria Salmonella , which poultry naturally carry. (medicalnewstoday.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)
  • Researchers suspect that the signs and symptoms of CDKL5 deficiency disorder vary in severity in part because of a process called X-inactivation. (medlineplus.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)
  • 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)
  • At 26.7 °C, immature (1st to 4th instars combined) beetles consumed an average of 245.7 ± 14.4 rugose spiraling whitefly eggs prior to pupation. (bioone.org)
  • With reports of the debilitating mosquito-borne virus chikungunya in the Americas (Carribean), I was ecstatic hear that researchers are working hard to find ways to control mosquito populations. (scienceblogs.com)
  • 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)
  • And it's a process that the female partner may suffer through even when a couple's infertility problems are caused by the male partner. (bostonglobe.com)
  • Only three animals still exist in the wild, one male and two females, but they are now too old to breed. (telegraph.co.uk)
  • Fish and Game biologists released two male and two female wolves at Egg Harbor on Coronation Island. (agu.org)
  • A healthy male frog (bottom) mates with a male turned female by exposure to the chemical atrazine. (nationalgeographic.com)
  • Now, researchers have discovered that the chemical transforms male frogs into fully functioning females-and that the substance may be contributing to a worldwide decline in amphibians . (nationalgeographic.com)
  • 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)
  • Inadequate nutritional intake is more common in female athletes than in their male counterparts. (medscape.com)
  • All women make small amounts of male hormones, known as androgens, but women with PCOS make even more. (medlineplus.gov)
  • 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)
  • 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)
  • 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)
  • 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)
  • 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)
  • The eggs can survive when they dry out-up to 8 months. (cdc.gov)
  • The distribution of the proteins, however, is even throughout the whole egg. (medicalnewstoday.com)
  • This benefit may be due to egg yolk proteins, such as phosvitin, which may reduce the number of compounds in the body that cause inflammation . (medicalnewstoday.com)
  • Researchers noticed that the beetles appeared adept at navigating away from a dung pile under clear skies, but on overcast nights they rolled in circles. (theweek.com)
  • Adult beetles consumed 50.6 ± 1.8 eggs per day. (bioone.org)
  • It took 21.3 ± 0.7 d for the beetles to develop from egg to adult. (bioone.org)
  • In other words, some of the eggs may have been in the nest, not in the dinosaur. (go.com)
  • During pregnancy, women… should have spiritual thoughts, should read the life history of great personalities and should keep themselves in peace," it went on. (inquirer.net)
  • About 174 women die of pregnancy-related causes in India for every 100,000 live births, compared with just 14 in the United States. (inquirer.net)
  • The female must also guard her eggs vigilantly to prevent them from being eaten by predators. (mbari.org)
  • Many of those surveyed said they would consider using their eggs to become single mothers in their 40s, local media reported on Saturday. (chinadaily.com.cn)
  • 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)
  • When Kundrát, a dinosaur expert from Uppsala University in Sweden, examined the eggshells, he noticed what 'turned out to be the first evidence of fungal contamination of dinosaur eggs. (go.com)
  • The NOW's investigative team followed Hsiung's California group in January as several members sneaked into a large egg farm with cage-free hens to document the conditions. (kjrh.com)
  • Pal and her colleagues studied the FSH levels of 544 women, whose average age was 35, seeking fertility help in Connecticut and New York. (livescience.com)
  • In 1998, Davis and two colleagues visited the islands to observe their highly unusual courting and egg laying habits. (eurasiareview.com)
  • Large-brained females might be able to assess risk better or need less sensory information to reach an accurate conclusion," Stockholm's Wouter Van Der Bijl and his colleagues wrote. (the-scientist.com)
  • The National Center for Health Statistics has noted a steady increase in women being more likely to conceive in their thirties and forties. (dailymail.co.uk)
  • Steady incubation occurs after laying the second egg and initially is mainly done by the females. (eurasiareview.com)
  • First, a fertility specialist will recommend that the woman try to lose weight to create a steady ovulation cycle. (wdxcyber.com)