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A gene's first 'kiss' sets off that affair known as puberty
...se when boys and girls are primed for their sexual reproductive years as men and women, appears to be triggered by...ty to begin? How is it that the full repertoire of reproductive hormones can exist at birth, go into hiding at about four to six months of age, then reemerge in ful...Ants Genetic Engineering Leads To Species Interdependency
...ival.Female ants are generally found in two forms: reproductive queens andsterile workers. The role, or caste, of an individual is determined forlife at a certain stage in her development.In virtually all ant species, it is the environment in which a femaleis raised, rather than a genetic predisposition, that det...Researchers trace evolution to relatively simple genetic changes
...For example, "sticklebacks vary in size and color, reproductive behavior, in skeletal morphology, in jaws and teeth, in the ability to tolerate salt and different temperatures at different latitudes," he said. Kingsley, Schluter and their co-workers picked one trait -- the fish's armor plating -- on which to foc...Octopuses occasionally stroll around on two arms, UC Berkeley biologists report
...For example, "sticklebacks vary in size and color, reproductive behavior, in skeletal morphology, in jaws and teeth, in the ability to tolerate salt and different temperatures at different latitudes," he said. Kingsley, Schluter and their co-workers picked one trait -- the fish's armor plating -- on which to foc...Sexual cooperation: Mating increases longevity in ant queens
...ct is a powerful driving force in the evolution of reproductive biology for many animal species. Males often try t...very harmful to females, whose lifespan and future reproductive output can be drastically reduced. New findings suggest that in some social insects--in which both s...How the environment could be damaging men's reproductive health
...hat environmental factors could be affecting men's reproductive health. The studies, published online today (Thursday 28 April) in Europe's leading reproductive medicine journal Human Reproduction, suggest that environmental pollutants could be changing the rat...Gray wolves maintain the food chain in winter
... on individual species, with disruptions in range, reproductive success, and seasonal phenomena like migration. But, in a new study from the open-access online journal PLoS Biology (www.plosbiology.org), Christopher Wilmers and Wayne Getz show that the impact of climate change on many different species in Yellows...Love's all in the brain: fMRI study shows strong, lateralized reward, not sex, drive
... important influence on social behaviors that have reproductive and genetic consequences." Diverse emotions occur, but reward response primary "It's a stark reminder that the mind truly is in the brain," noted Lucy L. Brown of the Albert Einstein College of Medicine. "We humans are built to experience magical f...Harmful chemicals may reprogram gene response to estrogen
...rs of women who used DES are at increased risk for reproductive tract abnormalities, pregnancy complications such as ectopic pregnancies and preterm deliveries, infertility, and a rare vaginal and cervical cancer called clear-cell adenocarcinoma. Other research conducted by NIEHS scientists indicates that women e...Same-Sex Mating Discovered in a Toxic Fungus
... involving both mating types. "Yet, how can sexual reproductive potential be maintained in an organism with a largely unisexual population structure?" Heitman asked. "The fruiting of alpha strains provided a clue." In their laboratory experiments, the researchers found that, rather than being an asexual process,...Technique may allow cancer patients to freeze eggs, preserving fertility before starting treatment
...nd radiation therapy can cause damage to a woman's reproductive system and leave her unable to have children afterward. Some women may regain their reproductive function after their treatment ends and may be able to conceive on their own, while others will beco...Scientists journey to southern Africa to unravel the secret world of elephant communication
...at could play a crucial role in their survival and reproductive success. "Perhaps they're sending out signals to p...ilderness is further complicated by the elephant's reproductive biology. Females breed when they are in estrus--a brief period of ovulation that only occurs every t......and India, have not reached a consensus on banning reproductive cloning and want to keep their options open on the... had been missed to adopt a convention prohibiting reproductive cloning because of the intransigence of those who failed to recognize that other sovereign States mi...To sea or not to sea: When it comes to salmon sex, size sometimes doesn't matter
...males. This difference is related to the fact that reproductive success in females is linked to the ability to produce numerous large eggs, hence the need for the female to be of a certain size herself. "Small males, however, can sometimes fertilize many eggs by sneaking rather than by fighting," Quinn says in t...Report that delayed motherhood decreases life expectancy of mouse offspring
... be a controversial topic of discussion, a team of reproductive biologists headed by Juan Tarín at the Department ...ight of their offspring. Several other aspects of reproductive fitness of offspring were assessed, but none showed significant deleterious effects. This report id...Of mice and men's (and women's) contraceptives
... as brain, heart, liver, and so forth, only in the reproductive cells we want to target." Investigating germ cell molecules for contraception is also desirable because it frequently allows reversibility. Hecht and colleagues have been proposing this scheme for the last several years, but how does the absence of ...Symbiotic bacteria protect hunting wasps from fungal infestation
...eat to higher organisms, and because of their high reproductive potential and adaptability, they are extremely difficult to control. Ironically, the best counteragents against microbes are often other microbes that produce very potent antibiotics. Thus, an effective and elegant way to counter the threat caused by...Scientists generate patient-specific stem cells, Science study says
...development would result if the cells were used in reproductive cloning. Any attempts at reproductive cloning would be dangerous and should not be attempted under any conditions. W.S. Hwang, B.C. Lee, ...SuperLigands - a database of ligand structures derived from the Protein Data Bank
...development would result if the cells were used in reproductive cloning. Any attempts at reproductive cloning would be dangerous and should not be attempted under any conditions. W.S. Hwang, B.C. Lee, ...Research shows smoking adds a decade to reproductive age of IVF patients
...t of ten years to a 20-year-old subfertile woman's reproductive age and has a "devastating" impact on a couples' c...ished today (Thursday 7 April) in Europe's leading reproductive medicine journal Human Reproduction[1]. Lead researcher Dr Bea Lintsen, from Radboud University Nij...Scientists use manufacturing methods to reconstruct mastodon
...th, to recover the kinds of information on health, reproductive history, diet and climate that are the focus of a lot of my research. Once the exhibit opening is behind us, I hope to be able to concentrate more on the interpretation of this animal's history and what it can tell us about late Pleistocene events." ...Evidence of 600-million-year old fungi-algae symbiosis discovered in marine fossils
...teria or possibly green algae. "The filaments have reproductive characteristics that make us think they are fungi," Xiao said. Taylor said, "Clearly, there are two kinds of organisms living together and, we believe, interacting in more than a chance association." In modern lichens and in the 400-million-year-ol...Survey reveals women and doctors aren't talking about HPV
... association composed of professionals who provide reproductive health services or education, conduct reproductive health research, or influence reproductive health policy. Founded in 1963, ARHP's mission is to educ...Stem cells in bone marrow replenish mouse ovaries
...s direct evidence to overturn a long-held dogma in reproductive biology, that female mice generate egg cells only ... "really revolutionizing how we think about female reproductive function," Tilly says. With the help of several genetic markers that are found in germ cells, the m...Certain fish have a special mating preference
...ait ?similar to a peacock's tail, meant to enhance reproductive opportunity and selected by the female ?rather than a primary sexual trait ?which is the actual reproductive organ itself, simply meant to transfer sperm. Historically, genitalia were not believed to be subjec...IMF Launches World’s First DNA Database for Myeloma Patients
...ait ?similar to a peacock's tail, meant to enhance reproductive opportunity and selected by the female ?rather than a primary sexual trait ?which is the actual reproductive organ itself, simply meant to transfer sperm. Historically, genitalia were not believed to be subjec...Scripps research scientists identify infertility molecule
... of the major issues facing women who use assisted reproductive technologies, and nobody has ever considered LPA signaling to be involved in implantation. If the same pathway turns out to be relevant in human embryo implantation, then there might be a way to stimulate LPA signaling with a drug that would increase...Caloric restriction won't dramatically extend life span in humans: UCLA research
...rodents, the first thing they do is shut off their reproductive system," said Phelan, citing a finding from his dissertation. A normal rodent reaches maturity at one month of age, and begins reproducing its body weight in offspring every month and a half. If humans shut off reproduction by severely limiting calor...A protein in the eye may prevent immune response and protect eyes from disease
...uding the eyes, brain, gastrointestinal system and reproductive system have the ability to prevent the usual immune response onset when confronted with foreign invaders such as bacteria. Without this special reaction, the eye's delicate tissue would be destroyed by inflammation and the gastrointestinal tract coul...Tufts researchers shine light on firefly mysteries
...hough males and females both try to maximize their reproductive output and contribute to the next generation, this...ed to the evolution of chemicals produced by their reproductive glands. These chemicals kill the sperm of other males that have mated with the same female but they ...Drug Offers Alternative to Surgical Treatment After Miscarriage
...d after birth; maternal, child, and family health; reproductive biology and population issues; and medical rehabilitation. The National Institutes of Health (NIH) ?The Nation's Medical Research Agency ?is comprised of 27 Institutes and Centers and is a component of the U. S. Department of Health and Human Servic...Sleeping Sickness Epidemic Spreading in Uganda
...d after birth; maternal, child, and family health; reproductive biology and population issues; and medical rehabilitation. The National Institutes of Health (NIH) ?The Nation's Medical Research Agency ?is comprised of 27 Institutes and Centers and is a component of the U. S. Department of Health and Human Servic...Human embryonic stem cells have the potential to develop into eggs and sperm in the laboratory
...tial harmful effects of environmental chemicals on reproductive development," he will say. "But at present it is v...oute for producing sperm and eggs. It would not be reproductive cloning as fertilisation would involve only one set of gametes produced in this way and therefore a ......ch was carried out at the MBL, has led to advanced reproductive technologies including test-tube fertilization. Oyster toadfish (Opsanus tau): The broad, flat head of the toadfish contains a unique set of nerve wiring. The nerves leading to and from the toadfish brain are less tangled than those in humans and ot...Divergent life history shapes gene expression in brains of salmon
...hese fish essentially trade bodily size for faster reproductive maturity," she says. "However, it was unexpected, for instance, that genes associated with learning and memory would be expressed at higher levels in the brains of sneakers. It's not yet clear why disparities like this would arise." Aubin-Horth says...New Discovery May Help Doctors Treat Infertility
...gen hormones and are present throughout the female reproductive tissues. These new data indicate that this recepto...onment on human health. For more information about reproductive and developmental toxicology and other environmental health topics, please visit our website at http...Analysis of flower genes reveals the fate of an ancient gene duplication
...n of genes essential for the development of floral reproductive organs, stamens and carpels. The subjects of their...h genes are required for the development of flower reproductive structures, and when these genes are mutated, the plants form so-called double flowers, in which pet...What comes first…the chicken, the egg, or the bad attitude?
...ores the relationship between the hen's growth and reproductive performance, to improve our understanding of how p...h with their own way of balancing their growth and reproductive priorities. "Building definitions of 'reproductive attitudes' has been an eye-opening process that c...AACR Favors 'full spectrum of stem cell research biology'
...ogy, including stem cell technology, used in human reproductive cloning, noting that, "such attempts have no beneficial goal and can be reasonably assumed to cause harm." At the same time, the AACR position supports the "ethical use of somatic cell nuclear transfer," noting that the technique, "promises to reveal...Scientists find a maturity gene in fly
...nile, non-reproductive stage to a mature, sexually reproductive adult," says Thummel, a professor of human genetics at the university and an investigator with the Howard Hughes Medical Institute. "Our kids stay sweet and cute through about 12 years of life and then, suddenly, in response to steroid and thyroid ...MWG Biotech expands siMAX?siRNA portfolio with new scales, lengths and design tools
...nile, non-reproductive stage to a mature, sexually reproductive adult," says Thummel, a professor of human genetics at the university and an investigator with the Howard Hughes Medical Institute. "Our kids stay sweet and cute through about 12 years of life and then, suddenly, in response to steroid and thyroid ...Plants discriminate between self and non self
...hemical recognition ?such as that known from plant reproductive systems -- or physiological coordination between roots that belong to the same plant. To test this, the researchers used plants that had two roots and two shoots and split them into two separate plants that were genetically identical, but physiologic...Prozac for future Plants on Mars
...hemical recognition ?such as that known from plant reproductive systems -- or physiological coordination between roots that belong to the same plant. To test this, the researchers used plants that had two roots and two shoots and split them into two separate plants that were genetically identical, but physiologic...Most embryos produced during IVF do not result in live births
...from all the fertility clinics that report data on reproductive techniques. Director of the Yale Fertility Center,...orge Kovalevsky, M.D. "We as practitioners in the reproductive clinic are in a paradoxical situation," Patrizio added. "There is pressure to reduce multiple births...The ecological effects of the Chernobyl disaster
...ratorie de Parasitologie Evolutive, France), found reproductive success was significantly reduced for the Chernobyl-nesting birds. Survival rates, number of eggs laid, and overall body condition was lower, despite similar nesting and laying dates. The radio nucleotides in the area also filter into the soil, and ...UW scientists report a new method to speed bird flu vaccine production
...vaccines. In nature, viruses commandeer a cell's reproductive machinery to make new virus particles, which go on to infect other cells and make yet more virus particles. Vaccine makers use a monkey kidney cell line to make non-virulent viruses that serve as the raw material for vaccines.The technique reported ...Picky female frogs drive evolution of new species in less than 8,000 years
...r mutation or some combination of those three, and reproductive isolation is just some glorious accident that arises from that," Moritz said. "We do have very compelling evidence. We have addressed various lines of evidence and conclude that there has been reinforcement and that has given rise to a new species ba...Preventing a pandemic: Study suggests strategies for containing a flu outbreak
...ntervention occurred within 21 days and the virus' reproductive number (which represents the average number of peo...ectiveness of TAP and GTAP. For even higher viral reproductive numbers, household quarantines would also be necessary to contain the virus. A combination of TAP, p...Weapon performance determines mating success in the collared lizard
...erritorial species with polygynous mating systems, reproductive success reflects phenotypic variation. At the gros...t bite-force performance was a strong predictor of reproductive success. However, no size measure was correlated with any estimate of mating success or with potenti...Studies on human genome variation provide insight into disease
...es the way for examining an individual's potential reproductive success based on sequence variants of the LHB/CGB genes," explains Laan. "We may be able to determine whether an individual is particularly susceptible to spontaneous abortions or reduced gonadal function, for example." Contact: Maris Laan, Ph.D...Housecat-sized Siberian tiger cubs get collared
...es the way for examining an individual's potential reproductive success based on sequence variants of the LHB/CGB genes," explains Laan. "We may be able to determine whether an individual is particularly susceptible to spontaneous abortions or reduced gonadal function, for example." Contact: Maris Laan, Ph.D...Study hints at role of stem cell genes in testicular, breast cancers
... Next, turning to cancerous tissue outside of the reproductive system, in this case breast tissue, the team deter... associate professor of obstetrics, gynecology and reproductive sciences and co-director of the UCSF Human Embryonic Stem Cell Center. "This is the first indicati...Chernobyl: The true scale of the accident
... Have there been or will there be any inherited or reproductive effects? Because of the relatively low doses to r...iferous plants, soil invertebrates and mammals and reproductive losses in plants and animals were seen in high exposure areas up to a distance of 20-30 kilometers. ...Living anti-HIV gel shows early promise
...large quantities of the HIV-blocking protein. The reproductive and intestinal tracts are prime sites for HIV infe... that the microbes are better able to colonise the reproductive and intestinal tracts. Other issues that will need to be addressed include the safety of introducin...Zebrafish may hold key to improved cancer research
...types of cancer, whether it's in the brain, blood, reproductive organs or elsewhere." The newest finding about the gene B-myb is especially compelling, said Spitsbergen. The B-myb gene has been conserved through hundreds of millions of years of divergent evolution in species ranging from worms to fruit flies, fi...Sudden change in social status triggers genetic response in male fish, study finds
...s of male rattlesnakes, combat is often the key to reproductive success. But now scientists studying a species of African cichlid fish have discovered that low-ranking male cichlids can quickly become leading men without even putting up a fight. In fact, a drab subordinate male cichlid will begin But But now sc...Scientists must offer solutions for conserving tropical forests in a rapidly changing world
...nal Park in Uganda, a 30-year record suggests that reproductive activity by forest trees is increasing; and at La Selva, Costa Rica, diameter-growth rates decreased among surviving individuals for cohorts of nine species measured annually for 17 years. These mysterious changes may be caused by large-scale driver...Seafloor creatures destroyed by ice action during ice ages
... lower metabolic rates that lower their growth and reproductive rates. Elsewhere in the oceans, a brisingid starfish would reproduce annually and live for ten years. In the Antarctic these starfish can reach 100-years-old but reproduce only once every ten years. This means that full community recuperation takes u...Gene therapy may protect normal tissues during radiation retreatment for lung cancer
... lower metabolic rates that lower their growth and reproductive rates. Elsewhere in the oceans, a brisingid starfish would reproduce annually and live for ten years. In the Antarctic these starfish can reach 100-years-old but reproduce only once every ten years. This means that full community recuperation takes u......e suggestion that fish may experience little or no reproductive senescence based on evidence that they continue to produce eggs as adults. It's an open question whether postreproductive lifespan can influence fitness enough to be under selection. But in a field dominated by investigations into the origins of huma...Other ContentscataractscataractscataractscathetercathetercathetercathetercathetercathetercatecholaminescauterizecausticcellulitephonesphonesphonescesareancesareanOther TagsEfficientEfficientEfficientEasilyGreaterGreaterIsolateIsolateRestrictionRestrictionRestrictionOrganizePerformancePerformancePerformancePerformanceReliableEnhancedEnhancedEnhanced
(Date:5/16/2008)...ugars attached to a hormone produced in the pituit...y 50 percent, a research group at Washington Unive...he change appears to alter a reproductive "thermos...stem that may one day be used to enhance human fer... reproductive hormones such as estrogen and testos...
(Date:5/16/2008)...show that CAPHOSOL ( www.caphosol.com ), an advanc...ositis (OM) and improves quality of life for cance...herapy. These data will be reported in two separa...entation and one tomorrow as a poster session, at ...ociety (ONS). These data confirm that CAPHOSOL is ...
(Date:5/16/2008)...f Forest Research presents the preliminary finding...ndscape-scale experiments on how forest management...e Blacks Mountain Interdisciplinary Research team ...rsity, Oregon State University, U.C. Riverside, Un...ety scientists collaborating in research on large-...
(Date:5/16/2008)...ree homes for their children have led to an ever-i...cterial soaps and cleaning agents. But the active ...e under scrutiny by the EPA and FDA, due to both e...closely related antimicrobials, triclosan and tric...s triclosan (TCS) has long captured the attention ...
Breaking Biology News(10 mins):Disabling mouse enzyme increases fertility 2CAPHOSOL relieves oral mucositis and improves quality-of-life in cancer patients 2CAPHOSOL relieves oral mucositis and improves quality-of-life in cancer patients 3CAPHOSOL relieves oral mucositis and improves quality-of-life in cancer patients 4Pioneering landscape-scale research releases first findings 2New study links fate of personal care products to environmental pollution and human health concerns 2New study links fate of personal care products to environmental pollution and human health concerns 3Brookings 3A Donor Perspectives on Innovative Financing for Global Health 3748 1Brookings 3A Donor Perspectives on Innovative Financing for Global Health 3748 2Pacific Valley Bank Approves 2416 7 Million Loan to Mee Memorial Hospital for Healthcare Services in South Monterey County 3745 1Pacific Valley Bank Approves 2416 7 Million Loan to Mee Memorial Hospital for Healthcare Services in South Monterey County 3745 2Pacific Valley Bank Approves 2416 7 Million Loan to Mee Memorial Hospital for Healthcare Services in South Monterey County 3745 3Concentra Offers Flu Vaccines to Keep America Working 523 1Concentra Offers Flu Vaccines to Keep America Working 523 2Stevens researchers provide new information about mass spectrometry 1269 1Stevens researchers provide new information about mass spectrometry 1269 2(Date:5/16/2008)...ire/ -- As tropical storms,continue to batter the ...,Cyclone Nargis are vulnerable to diseases and oth...stance, as exposure to the foul weather and,malnut...., "The people living in these conditions urgentl... get back on their feet," said David Meltzer,seni...
(Date:5/16/2008)...of Children Still in Danger, NEW YORK, May 16 /PR...rtising Council today announced a partnership to d...service announcements (PSAs) filmed by A-List,cele...el Madden, David,Duchovny, Tea Leoni, and Paul Rud...yclone. The Ad Council is distributing the new tel...
(Date:5/16/2008)...ire-FirstCall/ -- Nationwide,Health Properties, In...David,M. Boitano to Senior Vice President and Seni... contribution to NHP over the last several years a...versification strategy,successes. Dave has been re...ents for NHP, leveraging his vast experience and r...
(Date:5/16/2008)...l/ -- CryoCor, Inc. (Nasdaq:,CRYO), a medical devi...hythmias, announced today that on May 8, 2008, two...omplaint in the Superior Court of the State,of Cal... each member of the,Board of Directors of CryoCor,...mplaint is styled Secondido, et al. v. CryoCor, In...
Breaking Medicine News(10 mins):Health News:Myanmar Cyclone Survivors Face New Challenges 2Health News:Video: The Ad Council Partners With UNICEF to Promote and Distribute Myanmar Cyclone PSAs Filmed by A-List Celebrities 2Health News:Video: The Ad Council Partners With UNICEF to Promote and Distribute Myanmar Cyclone PSAs Filmed by A-List Celebrities 3Health News:David M. Boitano Promoted to Senior Vice President 2Health News:CryoCor, Inc. Subject of Lawsuit Relating to Tender Offer and Merger 2Health News:CryoCor, Inc. Subject of Lawsuit Relating to Tender Offer and Merger 3Health News:CryoCor, Inc. Subject of Lawsuit Relating to Tender Offer and Merger 4EfficientEasilyCastAwayGreaterIsolateRestrictionOrganizePerformanceReliablepfuturboprostarEfficientlyEnhancedOptimized
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