Species placentae. Medical search. Frequent questions

The nine-month pregnancy in humans is influenced by the structure of the placenta, according to new research into the evolution of reproduction in mammals which ends a 100-year mystery. (impactlab.com)
The difference in growth rates appears to be due to the structure of the placenta and the way it connects mother and baby. (impactlab.com)
The structure of the placenta is surprisingly different amongst mammal species although it serves the same basic function in all of them. (impactlab.com)
The researchers, whose findings are published in the academic journal American Naturalist this week, analyzed data on 109 mammal species showing for the first time that the structure of the placenta influences pregnancy duration in mammals. (impactlab.com)
Scientists have solved a long-standing mystery relating the structure of the placenta, the lifeline that connects mother and baby during embryonic development. (thenakedscientists.com)
they found is that the simpler the structure of the placenta, the longer the gestation. (thenakedscientists.com)

Lead can cross the placenta and enter the developing fetal brain. (cdc.gov)
Al nal bloodstream, cross the placenta, before birth. (who.int)

The human placenta is a difficult tissue to work with using proteomic technology since it contains large amounts of lipids and glycogen. (hindawi.com)
In order to prevent rejection of the fetus, the placenta expresses an intricate pattern of major histocompatibility complex molecules, immunizing the mother against the foreign fetal tissue [ 3 ]. (hindawi.com)
Recently, the placenta, a tissue with a unique hypomethylated methylome, has been shown to possess great inter-individual variability, which we highlight as a promising target tissue for studying MEs and mixed environmental exposures. (frontiersin.org)
And even in mice , this would be extremely difficult: "The placenta as part of the embryo fuses to the maternal tissue after implantation, and the blood vessels permeate each other, making it difficult to separate the cells for analysis," says Raha Weigert, who is a researcher in Meissner's lab. (mpg.de)
In contrast, the eutherian placenta is highly complex and comprises both maternal and fetal tissue. (scienceblog.com)
Pantomics Array Description: Normal Placenta tissue array, 150 cores including 75 cases of normal placenta tissues in. (delos.info)
So animals like a human or an ape, which have relatively simple placentae comprising just "fingers" of foetal tissue projecting into the wall of the uterus to contact maternal blood, tend to have a longer gestation, while species like dogs and leopards, which have relatively short gestation times, have extremely complex and highly folded "labythine" placental structures. (thenakedscientists.com)
Human placenta tissue lysate. (abcam.com)
In other words, the placenta constitutes the same tissue as the baby. (babymed.com)

During pregnancy the placenta also has several important endocrine functions, producing important hormones such as human chorionic gonadotropin and human placental lactogen [ 4 , 5 ]. (hindawi.com)
Their placentas mimic those of mice during early fetal development, while other key placental genes are expressed and secreted into milk for the offspring, Stanford researchers say. (scienceblog.com)
As detailed descriptions of talpid placentation, only available for Talpa europaea and Scalopus aquaticus, led to a controversial debate on the nature of interhaemal barrier, the collection of more placental data of further mole species was strongly desired. (mdc-berlin.de)
This special type of additional phagocytic region is usually most common in species with noninvasive, epitheliochorial placentation, which suggests a correlation between placental invasiveness and the occurrence and type of phagocytic placental structures. (mdc-berlin.de)
The placenta is a fetal organ consisting of an umbilical cord, membranes (chorion and amnion), and placental body. (babymed.com)

In addition to C. concisus , humans are also colonized by a number of other Campylobacter species, most of which are in the oral cavity. (frontiersin.org)
Some of these animal hosted Campylobacter species, such as Campylobacter jejuni and Campylobacter coli , can cause acute bacterial gastroenteritis in humans through consumption of contaminated food or water ( Galanis, 2007 ). (frontiersin.org)
Several Campylobacter species utilize humans as their natural host and accumulated evidence supports their role in chronic inflammatory diseases of the human intestinal tract. (frontiersin.org)
The placenta is vital for normal pregnancy progression and embryo development in most animals that give birth to live young, including humans. (babraham.ac.uk)
The findings help to explain why humans, whose placentas do not form the complex web-like structure seen in animals such as dogs and leopards, have relatively lengthy pregnancies. (impactlab.com)
In humans, the placenta has simple finger-like branches with a relatively limited connection between the mother's tissues and those of the fetus, whereas in leopards, for example, it forms a complex web of interconnections that create a larger surface area for the exchange of nutrients. (impactlab.com)
Though smaller and less complex than that of humans, the rat brain is extremely useful as a subject of study because most regions of the brain are essentially the same among mammalian species. (microscopyu.com)
Their study compared 109 different animal species, including humans, taking into account the size and length of gestation of each animal as well as the stuctures of their corresponding placentae. (thenakedscientists.com)
A predatory species that feeds on hard-bodied or spiny invertebrates like sea urchins and large marine snails, this creature is not aggressive towards humans unless provoked. (cedointercultural.org)
Among the 17 species isolated from humans, 4 types of organisms are of major concern. (medscape.com)
At least in experimental animals, genetical y modified strains, because on the differential effects of a wide greater susceptibility to chemical in these species the interval between variety of carcinogens in humans at carcinogens in utero and during birth and sexual maturity is only a different stages of life, including var early postnatal life is usual y man few weeks. (who.int)

C. burnetii persists in stool, urine, milk, and tissues (especially the placenta), so that fomites and infective aerosols form easily. (msdmanuals.com)
A new study by CDC is the first to show Zika virus RNA replicating in brain tissues of infants with microcephaly who later died and in placentas of women who suffered pregnancy losses after Zika infection during pregnancy. (cdc.gov)
Tumour the fetus via the maternal circulation utero, but when the reactive metab multiplicity rises to a maximum in must have crossed the placenta, and olites formed in maternal tissues are offspring exposed at approximate consequently are generally referred too unstable to circulate in the mater ly 21 days of gestation, a few days to as transplacental carcinogens. (who.int)

Although this research uses mice, the findings are likely to be highly relevant to complications during human pregnancy and the study highlights the need for more work to be done on investigating development of the placenta during human pregnancies. (babraham.ac.uk)

A calf was born from an embryo lacking cells which form a large part of the placenta, providing new insight into the regenerative capacity of mammalian embryos. (eurekalert.org)
In other mammal species, embryos are nourished via a placenta. (cedointercultural.org)

However, in all species it has the same fundamental function, to nourish the growing fetus, by establishing contact with the maternal blood circulation [ 1 ]. (hindawi.com)
The placenta has a critical role shaping the health of the fetus. (frontiersin.org)
The placenta is important for mediating the connection between mother and fetus, both able to respond to the environment itself and controlling the environment of the fetus. (frontiersin.org)
For decades, researchers assumed that this premature eviction from the womb left little or no role for the placenta, which in most mammals tightly links the physiological processes of the mother and the fetus to support the fetus's many stages of development. (scienceblog.com)
Of 103 gene mutations that lead to the death of a developing fetus in mice, 68% caused defects in the placenta. (babraham.ac.uk)
The placenta connects the developing fetus to the lining of the womb to allow nutrient uptake, waste elimination, and gas exchange via the mother's blood supply. (impactlab.com)
The placenta is a unique pregnancy organ which functions to sustain nutrition for the developing fetus. (babymed.com)

image: An early bovine embryo regenerating its TE cells which will later form a large part of the placenta. (eurekalert.org)
The blastocyst consists of two types of cells, the inner cell mass (ICM) and the trophectoderm (TE), which develop into an embryo proper and a large part of the placenta, respectively. (eurekalert.org)
Scientists led by Manabu Kawahara at Hokkaido University have shown that, since bovine ICM cells can regenerate TE, they are capable of forming both the embryo and placenta. (eurekalert.org)
After the embryo-transfer, to their surprise, one of the four cows became pregnant and a female calf was naturally born with an apparently normal placenta. (eurekalert.org)
By studying a select group of three genes in further detail, the team went on to show that the death of the embryo could be directly linked to defects in the placenta in one out of these three cases. (babraham.ac.uk)
This may mean that a significant number of genetic defects that lead to prenatal death may be due to abnormalities of the placenta, not just the embryo. (babraham.ac.uk)
The placenta is also involved in waste disposal from the embryo and produces important hormones that help sustain pregnancy and promote fetal growth. (babraham.ac.uk)
Dr Perez-Garcia, said: "Analysis of embryonic lethal mutants has largely focused on the embryo and not the placenta, despite its critical role in development. (babraham.ac.uk)
Intriguingly, our analysis also indicates that issues in the placenta often occur alongside specific defects in the embryo itself. (babraham.ac.uk)

As a matter of fact, of all mammalian organs the placenta shows the greatest variation in terms of anatomy. (hindawi.com)

Females of all mammal species develop placentas when they conceive, including bats, whales, and elephants. (impactlab.com)

Also, further studies could reveal the mechanism of cell fate decision in mammals and its differences between species. (eurekalert.org)
Guernsey studied the RNA transcripts in the wallaby placenta and compared them with those found in eutherian mammals during various stages of fetal development. (scienceblog.com)
The scientists say that the placenta in some mammals is highly 'folded' creating a larger surface area, increasing the rate at which nutrients are passed from mother to baby. (impactlab.com)
The research team studied the length of pregnancy, structure of placenta, and size of offspring in mammals, and examined how these characteristics have changed during the evolution of mammals. (impactlab.com)
They found that, despite the placenta essentially having the same function in all mammals, there were some striking structural differences. (impactlab.com)
After giving birth, many mammals eat the afterbirth, the placenta. (babymed.com)

Placenta-associated pregnancy complications, such as preeclampsia and intrauterine growth restriction, are all associated with aberrant patterns of DNA methylation and expression which are only now being linked to disease risk later in life. (frontiersin.org)

Scientists estimate that there are 76 species of hagfish, which can grow to be between 16 and 40 inches long. (cedointercultural.org)
CDC scientists found Zika virus RNA persisted in fetal brains and in placentas for more than seven months after the pregnant women contracted Zika. (cdc.gov)

Yolk sac placenta. (elasmodiver.com)

JAM3 knockdown induced reactive oxygen species and syncytin 2 expression in trophoblasts. (bioone.org)
Sodium hydrofluorosilicic acid is one of the most reactive chemical species know to man. (drkaslow.com)
Additional mechanisms include generating reactive oxygen species and altering gene expression (ATSDR, 2007). (cdc.gov)

From your patients had touched with their bare matched case-control study, surely it paper, we found that there are many hands calves or placentas that were in- is more appropriate to use a conditional cultural differences between Jordan and fected with the Brucella species. (who.int)
Gul HC, Erdem H. Brucellosis ( Brucella species). (medlineplus.gov)

The baby fell to the ground, and within moments mum was lapping up the placenta and then chewing through the umbilical cord while a tiny, rather pathetic, gory bundle of matted black fur and dirt lay on the sand. (africageographic.com)

two genera and 27 species (four endemic) in China. (efloras.org)
By 1883 the term Cyprinodontidae was in general use for 30 genera and 130 species, as reflected in the work of Jordan and Gilbert. (encyclopedia.com)

In short, female marsupials express genes important for fetal development that are normally found in the later stages of the eutherian placenta in their mammary glands instead - a kind of handoff of the developmental baton from womb to milk that suits their unique, savanna-hopping lifestyle. (scienceblog.com)
To investigate the relationship between the marsupial placenta and the milk produced during lactation, the researchers homed in on 77 genes whose expression was shared among the tammar placenta, the eutherian placenta and the tammar mammary gland, but not the mouse mammary gland. (scienceblog.com)
Organisms are excreted in milk, urine, and feces of infected animals with the highest numbers shed during birthing in the amniotic fluids and the placenta. (cdc.gov)

Separation of these species is not possible except via molecular techniques such as polymerase chain reaction (PCR). (medscape.com)

Many pregnancy complications are linked to placenta function and birth outcomes can have a large effect on later disease risk. (frontiersin.org)
Although previous research has highlighted the pivotal role of the placenta for a healthy pregnancy, its potential contribution to pregnancy complications and birth defects continues to be overlooked. (babraham.ac.uk)

In the cells of the placenta however, these markings are randomly scattered throughout the entire genome. (mpg.de)
For unknown reasons, the genome of the placenta is less methylated than the DNA of normal body cells, as Meissner's research group discovered in 2017. (mpg.de)
We observed a genome-wide increase in inhibitory histone modifications in the placenta," says Sara Hetzel, another researcher on Meissner's team. (mpg.de)

Bacterial species are usually not harmful to their hosts, although there are exceptions. (frontiersin.org)
Retention of the placenta is often a sequel to bacterial abortion as is infection of the uterus (endometritis and/or metritis). (ontario.ca)
Bacterial species used in determining the specificity of the real-time PCR for Rhabdochlamydia spp. (cdc.gov)

Generally, the mode of placentation in T. occidentalis resembles that of T. europaea, including a broad, discoid, antimesometrial, definitive chorioallantoic placenta of labyrinthine type being still villous in earlier stages. (mdc-berlin.de)

Influx of maternal hormones through the placenta into the fetal circulation often causes the newborn's breasts to be enlarged. (medscape.com)

The importance of a healthy placenta has often been overlooked in these studies and it is important that we start doing more to understand its contribution to developmental abnormalities. (babraham.ac.uk)

Regardless, the placenta of moles represents the least invasive mode of placentation among Eulipotyphla, which otherwise have highly invasive placentas. (mdc-berlin.de)

The herb can stimulate pelvic and uterine blood flow, induce abortion, expel retained placentas, and prevent miscarriage. (getpocket.com)
Several species of bacteria have been incriminated as causative agents of equine abortion and sterility. (ontario.ca)

When applied to clinical placenta samples apolipoprotein A1 was found to be accumulated in the preeclamptic placenta, where it may either have a nutritional effect or act as a modifier of signal transduction. (hindawi.com)
Here we review the most recent advancements on C. concisus and other human hosted Campylobacter species including their clinical relevance, transmission, virulence factors, disease associated genes, interactions with the human immune system and pathogenic mechanisms. (frontiersin.org)

He found that the gene expression patterns in the marsupial placenta undergo dynamic, rapid changes during the last few days of the animals' short pregnancy, during which the placenta churns out proteins known to be important in the early stages of eutherian development. (scienceblog.com)

And considering that placenta is meat, can vegetarians eat placenta? (babymed.com)

More recently, mostly in the United States, there has been a minority movement that recommends eating the placenta after delivery. (babymed.com)
Eating the placenta is promoted often by some modern New Age, holistic, and "natural-is-good" cultural beliefs. (babymed.com)
Eating the placenta is called "placentophagia. (babymed.com)
Recommendations include eating the placenta raw, cooked, or in capsule form and there are many recipes found how to cook the placenta. (babymed.com)
So what is the evidence that eating the placenta is used in other cultures? (babymed.com)
Technically, eating the placenta fits the definition of cannibalism: eating the flesh of another individual of your own species. (babymed.com)
There are no major cultures around the world where eating a placenta is part of the culture. (babymed.com)
Are there health benefits eating the placenta? (babymed.com)
Extensive research on eating placenta on PubMed and in the peer-reviewed literature showed no study that confirmed any healthy reasons for eating the placenta. (babymed.com)
There is no scientific or other clear evidence that eating placenta serves any health or other purpose. (babymed.com)
I am concluding that there is no scientific evidence to support eating placenta (placentophagia) after delivery as a health practice. (babymed.com)

Mycoplasma hominis and Ureaplasma species, known collectively as the genital mycoplasmal organisms, are generally considered opportunists that cause invasive infections in susceptible populations. (medscape.com)

The human placenta is unique among species. (hindawi.com)
the Campylobacter species that cause human acute intestinal disease such as Campylobacter jejuni and Campylobacter coli originate from animals. (frontiersin.org)
Over the past decade, studies on human hosted Campylobacter species strongly suggest that Campylobacter concisus plays a role in the development of inflammatory bowel disease (IBD). (frontiersin.org)
Most of the studies on the human hosted Campylobacter species in the past decade were on Campylobacter concisus , this bacterium is therefore the focus of this review. (frontiersin.org)
In addition, other human hosted Campylobacter species were also reviewed. (frontiersin.org)
To date, 40 Campylobacter species and subspecies have been isolated from a wide variety of animal or human sources (Figure 1 ). (frontiersin.org)
They survive as commensal bacteria in their hosts, and some species, such as C. jejuni and C. coli , can cause human diseases. (frontiersin.org)
A recent study even documented microplastic particles in maternal human placentas . (actionnetwork.org)
Breaking free from plastic would protect human health and improve fertility, helping ensure our survival as a species. (actionnetwork.org)
There is simply no known major culture on earth known where human mothers eat placentas after birth. (babymed.com)

Its specific name placenta refers to a kind of flat cake. (wikipedia.org)

We wanted to see which, if any, gene products found in the eutherian placenta are also in the marsupial placenta, and where they are expressed. (scienceblog.com)
All of the wallabies' gene expression time points were most similar to those found in the early eutherian placenta," said Guernsey. (scienceblog.com)
There are about 300 species of grenadiers, a large-headed fish found in warm and temperate waters. (cedointercultural.org)

Some species also occur as intracellular pathogens. (medscape.com)

The 2 Ureaplasma biovars, Ureaplasma urealyticum and Ureaplasma parvum, are now designated as separate species. (medscape.com)
Therefore, they are now considered together as Ureaplasma species. (medscape.com)
Although M hominis and Ureaplasma species are frequently detected in the lower urogenital tracts of healthy adults, they can also produce localized urogenital diseases. (medscape.com)

Understanding how differences between species evolve and what combination of pressures and conflicts gives rise to certain physiological features can help us to appreciate issues as diverse as economics, farming and biodiversity. (impactlab.com)

Therefore, the team decided to study cell cultures of cells from mice, specifically the trophoblast stem cells, which would later develop into the placenta. (mpg.de)

The role of the placenta in healthy fetal development is being seriously under-appreciated according to a new paper published today (14th March). (babraham.ac.uk)

This is many more than expected and suggests a far larger number of genes than previously thought are important for formation of a healthy placenta. (babraham.ac.uk)

2001). Several subspecies have been nominated for both species. (ivis.org)

Of the mutations we've studied, far more than expected showed defects in the placenta and this is particularly true for mutations that cause death during the early stages of pregnancy. (babraham.ac.uk)

We will highlight the unique nature of the placenta epigenome and its potential as a connection between environment and health. (frontiersin.org)
Each animal has come up with their own unique strategies for delivering the functions of the placenta that takes into account where they live, how many offspring they have and what they eat, for example. (scienceblog.com)
Mycoplasma species are the smallest free-living organisms and are unique among prokaryotes in that they lack a cell wall. (medscape.com)

Another, known as GCM1, is a transcription factor essential to the function of eutherian placentas. (scienceblog.com)

Anatomy14

Organisms4

Diseases12

Chemicals and Drugs11

Analytical, Diagnostic and Therapeutic Techniques and Equipment14

Phenomena and Processes22

Disciplines and Occupations1

Information Science2

Named Groups1

Health Care1

Structure of the placenta6

Cross the placenta2

Tissue9

Placental5

Humans11

Tissues3

Pregnancies1

Embryos2

Fetus7

Embryo9

Mammalian1

Mammal species1

Mammals6

Methylation1

Scientists2

Yolk1

Reactive3

Brucella2

Umbilical cord1

Genera2

Milk3

Molecular1

Pregnancy complications2

Genome3

Bacterial3

Villous1

Hormones1

Developmental1

Placentation1

Abortion2

Clinical2

Proteins1

Meat1

Eating11

Invasive1

Human10

Refers1

Found3

Occur1

Ureaplasma3

Differences between species1

Mice1

Role1

Genes1

Subspecies1

Stages1

Unique3

Function1