Reproduction Current Events | Reproduction News
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Link between assisted reproduction techniques and genetic disruption
Evidence that assisted reproduction techniques may carry a risk of genetic 'imprinting disorders' in the resulting babies, emerges in a study published in the Journal of Medical Genetics. To assess the likely risk of genetic disruption, geneticists from the University of Birmingham and the West Midlands Genetics Service assessed the birth... view more... (2003-01-14)
Social life-history response to individual immune challenge of workers of Bombus terrestris: a possible new cooperative phenomenon
Solitary organisms can minimise fitness loss from parasitism with a facultative change to an earlier reproduction. Such a shift of the reproductive effort gives the host a chance to compensate for the cost on future reproduction resulting from the infection. In the case of social insects, where brood care and reproductive effort are shared between... view more... (2004-02-05)
Reproduction of fungus depends on ...
A research team of the Department of Applied Chemistry of the University of the Basque Country has been studying the reproduction of funguses. In the laboratory of Unai Ugalde, they have studied and identified a molecule that is essential in the growing of fungus. It is already known that funguses grow in several places, but the factors that... view more... (2002-11-15)
Predators: an overlooked player in plant-pollinator relationships
Biologists have long recognized that predators can help to shape ecological communities -- wolves promote the growth of young trees through predation on moose, otters keep kelp forests thriving by preying on sea urchins, etc. Yet we have seldom considered the consequences of predation on animals that help plants reproduce. Predation on pollinators... view more... (2003-08-13)
Age is more than a number — In barn owls, it reveals how susceptible one is to climate change
Fluctuations in weather and the environment affect survival and reproduction of animals. But are all individuals within a population equally susceptible? Theory on the evolution in age-structured populations suggests not - those life stages that are more important for overall fitness should be less susceptible to environmental variation than other... view more... (2007-01-11)
Italy now faces worldwide storm of protest over fertility proposals
Italian legislators now face worldwide condemnation by fertility experts for IVF proposals that could encourage multiple pregnancies and put babies at risk. The International Federation of Fertility Societies (IFFS) has added its voice to that of the European Society of Human Reproduction and Embryology, who have already described the proposals as... view more... (2002-07-03)
Understanding Infertility - The Role of Genes in the Control of Reproduction
The problem of infertility is not confined to humans alone. There has been a noticeable decline in the reproductive ability of cattle that have been bred specifically for their high milk yields. Two scientists at Department of Animal Science and the Conway Institute of Biomolecular and Biomedical Research, University College Dublin have been... view more... (2003-01-21)
A new male-specific gene in algae unveils an origin of male and female
By studying the genetics of two closely related species of green algae that practice different forms of sexual reproduction, researchers have shed light on one route by which evolution gave rise to reproduction though the joining of distinct sperm and egg cells. view more (2006-12-19)
Assisted reproduction provides bright future for HIV positive men - butseems less successful for women
Assisted reproduction can safely help HIV positive men to become fathers without infecting their partners, according to new research from French fertility experts. view more (2003-05-24)
Aging boosts chances that a family line will be long-lived
Scientists have puzzled over just why organisms evolved aging as a strategy, and now there appears to be an answer. Allowing one individual to carry all the cellular damage inflicted over time, rather than dividing it between two organisms during reproduction, increases the chances that the individual's line will continue to reproduce for many... view more... (2007-03-14)
Why cloning could wipe out species
Cloning on a grand scale could spell the end of species as they become progressively nastier, warn researchers at the University of Sussex. Evolutionary biologist Dr Joel Peck has produced a mathematical model that suggests that asexual reproduction -in which organisms are reproduced from a single parent without fertilisation - leads to... view more... (2004-04-26)
Preterm birth associated with diminished long-term survival, reproduction
An analysis of births in Norway found that persons born preterm had an increased risk of death throughout childhood and lower rates of reproduction in adulthood, compared to persons born at term, according to a study in the March 26 issue of JAMA. view more (2008-03-26)
Summer without the sneezes
Plants lacking allergenic proteins could mean an easier life for hay fever sufferers. Nearly 15% of the UK population suffer an annual battle with this distressing condition - starting in early spring. Forced to take steroids and immunosuppressants to battle the symptoms, most sufferers would jump at the chance of a final solution. The latest... view more... (2002-02-01)
Vitamin D found to fight placental infection
In a paper available at the online site of the journal Biology of Reproduction, a team of UCLA researchers reports for the first time that vitamin D induces immune responses in placental tissues by stimulating production of the antimicrobial protein cathelicidin. view more (2008-12-02)
Babies conceived with medical assistance face high risk at birth
Babies born following medically assisted reproduction face a much higher risk of problems at birth and death during delivery, compared with babies conceived naturally, say researchers in this week's BMJ - though the outcome for twins is better. In births involving a single baby, infants fared worse than babies conceived without medical help in... view more... (2004-01-23)
Better together: Bacterial endosymbionts are essential for the reproduction of a fungus
Endosymbiotic relationships—in which one organism lives within another—are striking examples of mutualism, and can often significantly shape the biology of the participant species. view more (2007-04-06)
Is love at first sight real? Geneticists offer tantalizing clues
Leave it to geneticists to answer a question that has perplexed humanity since the dawn of time: does love at first sight truly exist? view more (2009-04-08)
Getting an evolutionary handle on life after reproduction
Since many animals live beyond their fertile years, biologists have searched for evolutionary clues to this extended lifespan. view more (2005-12-27)
Old flies can become young moms
Female flies can turn back the biological clock and extend their lifespan at the same time, University of Southern California biologists report. view more (2008-11-25)
Researchers Examine Protein Vital to Reproduction Process, Regulation May Increase Chances of Pregnancy
In its early and most critical stages, human reproduction requires precise, vital functions. The role of one sperm-delivered protein, which is crucial to the process, is being closely observed by scientists from the United States and Canada. Lab tests in recent years have produced valuable information and hopes of regulating that protein to... view more... (2007-03-20)
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