Tag: "fertility" at biology news
Researchers at Illinois explore queen bee longevity
... insulin-IGF-1 signaling pathway, regulates aging, fertility
and other important biological processes in invert... the actual mechanism by which queens achieve both fertility
and long life remains to be seen, Robinson said. In any event, this study suggests that vitellogenin...
Drylands are not the same as badlands
... slowly changing but key variables -- such as soil fertility
-- have thresholds that, when crossed, can push systems into "a new state or condition," the report said. Crossing thresholds don't necessarily mean a turn toward disaster. For example, the report cited the positive social and environmental effects...
Childhood environment influences reproductive function
...ormones progesterone and oestradiol. These are key fertility
hormones, influencing the female menstrual cycle, pregnancy and embryonic development. Health information and body measurements were also provided by the subjects. Co-author Dr Gillian Bentley, UCL Department of Anthropology, who directed the proj...
Scientists discover cost-effective ways to improve crop output in Uganda
...r soil treatment. By implementing alternative soil fertility
management and a reduction in crop tillage, scient...d as fertilizer Reduced tillage Several soil fertility
management practices and reduced tillage were cost effective in increasing sorghum crop yield in the...
Soils offer new hope as carbon sink
...uel and agrichar which can be used to enhance soil fertility
and store carbon long-term. NSW DPI senior research scientist Dr Lukas Van Zwieten said soils naturally emit about 10 times more greenhouse gas on a global scale than the burning of fossil fuels. "So it is not surprising there is so much interest i...
Studies to find better ways to preserve human eggs, ovarian tissue under way
... are faced with the reality that you may die, your fertility
is the most important thing you are thinking or talking about, but there are a lot of women interested in talking about it, says Dr. Emmi. She hopes her work with Dr. Ying C. Song, cryobiologist, will one day give her more to say. They are collecti...
Daddies' girls choose men just like their fathers
...d move studies in areas like evolutionary biology, fertility
and genetics a step forward and offer new insights in areas such as relationship counselling and psychology. Author Dr Lynda Boothroyd of Durham University explains: While previous research has suggested this to be the case, these controlled result...
AAAS decries latest stem cell veto
...s left over and due to be discarded after in vitro fertility
treatments. Current U.S. policy limits such funding to fewer than 20 stem cell lines that had been created when the president first announced U.S. policy in 2001. "Our concern is that this action has the potential to delay development of important ne...
Study: Donated embryos could result in more than 2,000 new embryonic stem cell lines
...t of respondents). Embryos are currently frozen in fertility
clinics because more were created than could safely be returned to a womans uterus at the time of fertilization or in order to increase the chances of pregnancy from a single cycle of in-vitro fertilization. ...
Researchers find gene that spurs development of the epididymis
...e lack of coiling had serious implications for the fertility
of the mouse, Yao said. If you take sperm directly from the testis and put it into the female reproductive tract, it wont swim. It wont be able to fertilize the egg, he said. Going through the epididymis changes the biochemical properties of the sp...
Key to male infertility
...nding could lead to a diagnostic test to determine fertility
status. The study appears in the latest issue of Molecular Medicine. The semen samples were collected from men three to five days after a period of sexual abstinence. The scientists had no idea when analyzing levels of MIF whether the sample came ...
Extracting eggs from pre-pubertal cancer patients brings hope for future fertility
... would become increasingly important in preserving fertility
in young patients. Childhood cancers usually res... extreme cold, offers a better chance of restoring fertility
in adulthood. To their surprise, Dr. Revel and his team found eggs in the follicles of girls betwe...
Stressed-out African naked mole-rats may provide clues about human infertility
...nimals, but only the queen reproduces, suppressing fertility
in both the females and the males around her by bu...ers are translated into the suppression of certain fertility
hormones (luteinizing and follicle stimulating hormones). In the non-breeding females this has the e...
Personalized approach to ovarian stimulation achieves high ART pregnancy rates
Lyon, France -- An international group of fertility
specialists has developed an easy-to use mathemati...h to ovarian stimulation therapy for women seeking fertility
treatment. Clinical tests demonstrated that when clinicians used the formula (or algorithm) to calcu...
First baby is born after oocytes were matured in the lab and frozen
...istant professor at the Center and coordinates the fertility
preservation programme there . He said: Freezin...ytes) has become an important and integral part of fertility
treatment, and the introduction of new freezing techniques such as oocyte vitrification has increase...
New research holds promise for protecting cancer patients against infertility
...rance: A promising new therapy for protecting the fertility
of women with cancer and auto-immune diseases suc...is will prove to be an effective way of protecting fertility
for women without the problems that have been associated with GnRH agonists in the past, she said. T...
Male or female factor infertility -- men suffer just the same
...nd given the chance to speak to other couples with fertility
problems But psychosocial counselling may be ben...s Peronace. Men who are particularly affected by fertility
problems should be considered for counselling, since this may improve their mental well-being as wel...
Common environmental chemicals in diet affect fetal ovarian development
...disruption and also to measure the degree to which fertility
is affected in the offspring after puberty, following their exposure as fetuses to environmental concentrations of a mixture of pollutants. Switching some mothers from sewage sludge fertilised to control pastures before conception will tell us whethe...
Germany's embryo protection law is 'killing embryos rather than protecting them'
... of increasing the number of foetuses killed after fertility
treatment according to new figures presented at th... it would be cutting its generous reimbursement of fertility
treatment by 50% and in that year there was a sudden surge in the number of procedures from 84,819 i...
Complex ART procedures more likely to lead to umbilical cord abnormality
...own that both singletons and twins conceived after fertility
treatment do worse in terms of duration of pregnancy and in live birth weight. Certain umbilical cord pathologies, such as the insertion of the cord on the placental membranes instead of centrally in the placenta, or the absence of one artery in t...
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