Biologists discover 'control center' for sperm production
Biologists at the University of Leicester have published results of a new study into the intricacies of sex in flowering plants.
Antioxidants may improve chances of conceiving in male subfertility
Antioxidant supplements may benefit couples who have difficulty conceiving naturally, according to a new systematic review published today in The Cochrane Library. The review provides evidence from a small number of trials ...
Mildew-resistant and infertile
Two proteins involved in powdery mildew infection in plants also play an important role in fertilization.
Spontaneous mutations important cause of mental retardation
New research by Dutch geneticists affiliated with the Radboud University Nijmegen Medical Centre demonstrates that spontaneous mutations are an important cause of mental retardation. The majority of mental retardation is ...
The long road of fertility
Surviving childhood cancer comes at a cost; along with temporary but gruelling side effects, the life-saving treatments children receive may render them infertile as adults.
Girls with ovarian germ-cell tumors can safely skip chemotherapy unless disease recurs
Researchers from Dana-Farber/Children's Hospital Cancer Center (DF/CHCC) have found that as many as 50 percent of young girls treated for germ-cell ovarian tumors might safely be spared chemotherapy using a "watch and wait" ...
Male fertility a matter of cell signals
Australian scientists have discovered the chemical signals that ensure men produce sperm instead of eggs.
Smoking damages men's sperm and also the numbers of germ and somatic cells in developing embryos
Two new studies have shed more light on how smoking may damage fertility, and give further weight to advice that mothers and fathers-to-be should stop smoking before attempting to conceive. The research is published online ...
Plants spice up their sex life with defensins
Since the beginning, plants and animals have deployed various mechanisms to fight pathogens. Proteins have always played an important part in this armoury, and a broad variety of defensin proteins have become part of the ...
Researchers identify regulator of human sperm cells
UCSF researchers have identified an elusive molecular regulator that controls the ability of human sperm to reach and fertilize the egg, a finding that has implications on both treating male infertility and preventing pregnancy.
Newly discovered mechanism allows cells to change state
Cells are not static. They can transform themselves over time — but change can have dangerous implications. Benign cells, for example, can suddenly change into cancerous ones.
Stem cells battle for space
The body is a battle zone. Cells constantly compete with one another for space and dominance. Though the manner in which some cells win this competition is well known to be the survival of the fittest, how stem cells duke ...
For young boys with cancer, testicular tissue banking may be option to preserve fertility
For parents of children with cancer, the hopeful news is that pediatric survival rates have steadily improved for decades. Among the bad news—treatments that enable survival often cause infertility.
Sperm may play leading role in spreading HIV
Sperm, and not just the fluid it bathes in, can transmit HIV to macrophages, T cells, and dendritic cells (DCs), report a team led by Ana Ceballos at the University of Buenos Aires in Argentina. By infecting ...