News tagged with cell reproduction
From embryonic stem cells, a sperm replacement and easier path to genetic modification
Researchers reporting in the April 27 issue of the journal Cell have devised a new and improved method for producing genetically modified animals for use in scientific research. The method relies on haploi ...
Apr 26, 2012 |
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Are silver nanoparticles harmful?
Silver nanoparticles cause more damage to testicular cells than titanium dioxide nanoparticles, according to a recent study by the Norwegian Institute of Public Health. However, the use of both types may affect testicular ...
Nanotechnology / Bio & Medicine
Mar 14, 2012 |
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Malaria parasite goes bananas before sex: new study
(PhysOrg.com) -- New research from the University of Melbourne shows how the malaria parasite (Plasmodium falciparum) changes into a banana shape before sexual reproduction, a finding that could provide target ...
Feb 14, 2012 |
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Great Barrier Reef hopes on ice in Aussie Outback
The arid plains fringing Australia's desert centre are more suited to camels than blooms of coral but here, hundreds of miles from the coast, a piece of the Great Barrier Reef has been put on ice.
Jan 25, 2012 |
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A new role is hatched for female fruit flies
A team of New York University biologists has uncovered a previously unknown role for a set of cells within the female reproductive tract of fruit flies that affects the functioning of sperm and hence fertility. Their discovery, ...
Nov 08, 2011 |
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The machinery for recombination is part of the chromosome structure
During the development of gametes, such as egg and sperm cells in humans, chromosomes are broken and rearranged at many positions. Using state of the art technology, the research group of Franz Klein, professor for genetics ...
Aug 09, 2011 |
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Biologists discover how yeast cells reverse aging
Human cells have a finite lifespan: They can only divide a certain number of times before they die. However, that lifespan is reset when reproductive cells are formed, which is why the children of a 20-year-old ...
Jun 24, 2011 |
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Loch fossils show life harnessed sun and sex early on
Remote lochs along the west coast of Scotland are turning up new evidence about the origins of life on land.
Other Sciences / Archaeology & Fossils
Apr 13, 2011 |
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Protective strategy shields primate ovaries from radiation-therapy-induced damage
A strategy developed by Massachusetts General Hospital (MGH) researchers to shield the ovaries of female mammals from the damaging effects of radiation and chemotherapy has passed an important milestone. A collaborative ...
Feb 22, 2011 |
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The production of plant pollen is regulated by several signalling pathways
(PhysOrg.com) -- Plants producing flower pollen must not leave anything to chance. The model plant thale cress (Arabidopsis), for instance, uses three signalling pathways in concert with partially overlapping ...
Jan 25, 2011 |
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Embryonic stem cells help deliver 'good genes' in a model of inherited blood disorder
Researchers at Nationwide Children's Hospital report a gene therapy strategy that improves the condition of a mouse model of an inherited blood disorder, Beta Thalassemia. The gene correction involves using unfertilized ...
Medicine & Health / Medical research
Jan 10, 2011 |
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Advancements in fertility preservation provide oncology patients new options
Many young people who've just learned that they have cancer also are told that the therapies that may save their lives could rob them of their ability ever to have children. Infertility caused by chemotherapy and radiation ...
Jan 03, 2011 |
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Researchers identify site in brain where leptin may trigger puberty
UT Southwestern Medical Center researchers have pinpointed a tiny site in the brain where the hormone leptin may help trigger the onset of puberty.
Medicine & Health / Medical research
Dec 22, 2010 |
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Crucial sex hormones re-routed by missing molecule
A hormone responsible for the onset of puberty can end up stuck in the wrong part of the body if the nerve pathways responsible for its transport to the brain fail to develop properly, according to research funded by the ...
Nov 29, 2010 |
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Understanding ageing by studying reproduction benefits
Do examples of rejuvenation exist in nature? Yes, during reproduction! For the first time, a team from the Laboratoire de Biologie Moleculaire de la Cellule at CNRS (France) has managed to visualize, in the ...
Medicine & Health / Medical research
Nov 22, 2010 |
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