Sentences with phrase «of reproductive»

Second, it sets a theoretical foundation to ask several interesting questions about the diversity of reproductive modes and the evolutionary pathways behind such amazing amphibian behaviors.»

The fossil dates from the Lower Devonian period, around 400 million years ago, and consists of spores contained within a forked structure which looks a little like part of the reproductive apparatus of a living liverwort called Riccia.

For all women of reproductive age, 22 percent with insurance reported tobacco use in the last 30 days versus 33 percent of the women without coverage.

In a published study, the team of researchers implanted human pluripotent stem cells in a special line of pigs developed by Randall Prather, an MU Curators Professor of reproductive physiology.

Since the birth of the first «test tube baby» in 1978, more than three million children have been born with the help of reproductive technology.

Exposure to them during early development is associated with increased risk of cancers and abnormal formation of the reproductive tract.

Diseases, invasive species, disruption of reproductive cycles, and less fit hybrid offspring are just some of the risks that parrots and other species face when they are released in unfamiliar places and begin to reproduce with individuals from different populations.

Ultimately, the goal is to use stem cells of an individual patient and create a personalized model of their reproductive system to test new drugs for safety and effectiveness.

«Females do not find a mating partner within the small isolated populations any more,» explains Petra Kretzschmar, scientist at the Leibniz Institute for Zoo and Wildlife Research (IZW), «the long non-reproductive periods lead to the development of reproductive tract tumours.»

It has to be a pay - off in terms of reproductive success.

In infant boys, prenatal exposure to dibutyl phthalate has been linked to feminization of the reproductive tract.

«Following our diet modification, routine monitoring of the reproductive status of our female SWR suggested that the diet change was having a positive impact,» said Tubbs.

The structure of two parts of the Oskar protein, known to be essential for the development of reproductive cells, has been solved by scientists from EMBL Heidelberg.

Only a combination of intensive protection with improvements of the reproductive performance can save the species from extiction.

The ultimate goal is to use stem cells of an individual patient and create a personalized model of their reproductive system.

«Here you have a vertebrate turtle that shows no increasein mortality and no loss of reproductive capacity at ages wheremammals, including humans, will shut down totally.»

My goal is to understand the genetic programs that allowed cells in multicellular entities to evolve a germ - soma division of reproductive labor in specific environments, not to analyze how our multicellular origin has affected the evolution of our societies.

Frogs have evolved an amazing variety of reproductive methods, says McGuire, an associate professor of integrative biology and curator of herpetology at UC Berkeley's Museum of Vertebrate Zoology.

The division of reproductive labor in a multicellular entity requires that cells work together to maximize the reproductive potential of the entity of which they are a part.

As explained by lead researcher, Dr Ferdinand von Meyenn, postdoctoral researcher in the Epigenetics research programme at the Babraham Institute and first author on the paper: «Our method establishes a reliable system that can be used to explore the early stages of epigenetic reprogramming in primordial germ cell - like cells and how this is regulated in the generation of reproductive cells.

Consistent with theoretical predictions from models of reproductive skew, female lions are unable to control each other's reproduction because of high costs of fighting and low access to each other's newborn cubs.

While estrogens are present in both men and women, they are usually present at significantly higher levels in women of reproductive age.

The impact on wild populations could be profound, they say, and because the processes of reproductive development are remarkably well conserved among mammals, these effects are very likely to be occurring among other mammalian species, including humans.

The study also concludes that nature will favour all physical traits that influence «optimal» fertility in either sex, and that climate and food availability also influence the evolution of reproductive processes — factors which Darwin originally overlooked.

The images echo familiar pre-Columbian themes of reproductive and agricultural fertility.

In the analysis of 23 relevant studies, investigators found that many clinicians are broadly informed about the risk to their patients» fertility brought about by cancer treatment, but many factors hinder the appropriate discussions and referrals needed to provide adequate fertility support to patients of reproductive age.

Recently Kutluk Oktay, the chief of reproductive endocrinology and infertility at New York Methodist Hospital in Brooklyn, has been experimenting with freezing and transplanting swatches of ovarian tissue.

However, the scientists note, relying on another species is risky, so how do the plants get away with putting all of their reproductive eggs in a few ant - carried baskets?

It describes the process of reproductive success among organisms, defined by the number of successful offspring which reach breeding age.

And other cooperative creatures, including numerous birds and carnivore species, exhibit that same pattern of reproductive dominance by one or a few females.

Published in the Jan. 27 issue of Fertility & Sterility, the study found that about 50 % of reproductive - age women had never discussed their reproductive health with a medical provider and about 30 % visited their reproductive health provider less than once a year or never.

«We are literally going to have to rewrite medical textbooks,» says Roger Pierson, director of reproductive biology at the University of Saskatchewan in Canada and senior author of a study published in July.

He explained that, as a systemic disease, obesity «probably affects the different components of the reproductive system independently.»

The findings, published online in the February issue of the journal Obesity, highlight the need for a comprehensive approach to obesity reduction among women of reproductive age that includes weight counseling before conception and during pregnancy.

A new study by Yale School of Medicine researchers provides insight into how much women of reproductive age in the United States know about reproductive health.

Women diagnosed with polycystic ovary syndrome — the most common hormone disorder in women of reproductive age — face a heightened risk of developing heart disease, diabetes, mental health conditions, reproductive disorders and cancer of the lining of the uterus than healthy women, according to a new study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism.

«Impaired fertility brought about by cancer treatment leads to long - term psychological distress and lowered quality of life for cancer patients of a reproductive age.

All cancer patients of reproductive age should be provided with fertility information and referrals for fertility preservation.

Women of reproductive age who have thyroid cancer should be cautious about receiving radioactive iodine treatment, which affects their remaining egg supply — their ovarian reserve — and may affect their fertility, new research from Israel finds.

They used congenital malformations of the reproductive system in males as an indicator of parental exposure to toxins.

These findings are important given the high prevalence of overweight and obesity worldwide, and suggest that preventing women of reproductive age from becoming overweight or obese is important to the health of their children.

New research on howler species has revealed an evolutionary «trade - off» between investments in the size of the male hyoid — the bulbous, hollow throat bone that allows the howlers» guttural roar to resonate — and in the size of reproductive organs, namely the testes.

Viruses use iron as part of their reproductive cycle, so depriving them of it blocks their dissemination.

But Read has demonstrated that targeting older mosquitoes — those nearing the end of their reproductive lives, which are also the most likely to be disease carriers — could largely eliminate the problem of insecticide resistance.

In our day and age, when growing numbers of women of reproductive age are diagnosed with thyroid cancer and when fertility problems are rampant, these findings should serve as an additional consideration for physicians contemplating radioactive iodine for their patients,» said senior author Karen Tordjman, MD, associate professor of medicine at the Sackler Faculty of Medicine of Tel Aviv University.

Among the most common hormone disorders in women of reproductive age, PCOS occurs when a women's body produces slightly higher amounts of testosterone and other androgen hormones — sex hormones typically associated with men, but also found in women — than normal.

In this article, Dr David Kristensen and colleagues from Copenhagen University Hospital, review the findings from three individual rodent studies that evaluated the effects of paracetamol taken during pregnancy on the development of the reproductive system in female offspring.

The Suleman brouhaha showed that even routine uses of reproductive technologies can be fraught with issues that bear on ethics and patient safety.

In the early 1980s, as an assistant professor at Kagoshima University in Japan, Goto applied his nascent understanding of reproductive biology to his country's pursuit of the ultimate steak.

The four stages of the reproductive cycle included mated but not pregnant; pre-lactation pregnancy; early lactation pregnancy and late lactation pregnancy, along with a male - female comparison that revealed unique expressed genes corresponding to each stage.