Male circumcision reduces risk of HIV transmission from women to men
The first study to examine the probability ofHIV infection per act of heterosexual sex among a population withmultiple sexual partners has found that uncircumcised men have morethan twice the risk of acquiring HIV than do circumcised men.In the study, published in the Feb. 15 issue of The Journal ofInfectious Diseases, now available online, Jared Baeten and colleaguesfrom the United States...Female sex hormones play a vital role in defense against sexually transmitted diseases
Two McMaster University studies, to be published in the Journal of Virology, show that sex hormones have a profound effect on susceptibility of female mice to the herpes simplex virus, type 2 (HSV-2 ), one of the most common sexually transmitted diseases. Charu Kaushic, assistant professor and supervisor of the studies, says the implication of this work is quite significant. "The research...Mother birds increase progesterone to hatch females
In mammals, sperm from the male determines the sex of the offspring. In birds, however, it is the female's sex chromosome that determines offspring sex. Now, Cornell University researchers think they understand the mechanism that several bird species use to bias the sex ratios of their offspring toward female. By experimenting with domestic chickens, they have determined that the presence...Male Combat Veterans Rank High In Heart Disease Risk
Men who fought in World War II, the Korean War, and the Vietnam War are more likely to be heavy drinkers, heavy smokers and obese than men who are non-combat veterans or non-veterans, according to a study presented at the American Heart Association's 45th annual Conference of Cardiovascular Disease, Epidemiology and Prevention. "Combat veterans were four times more likely to be heavy drin...Decisions, decisions: Male or female?
How germ cells decide whether to be sperm or eggs Present in both male and female embryos, germ cells are the precursors to both sperm and eggs. Unable to "decide" on their own which to become, however, germ cells must take "...Reacti-Bind Maleic Anhydride Activated Polystyrene 96-Well plates from Pierce Biotechnology, Inc.
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Description:Pierce offers maleimide activated carrier proteins to simplify the production of hapten-carrier conjugates. Imject Maleimide Activated Carrier Proteins are commonly used carriers that have been preactivated with a heterobifunctional cross-linker (Sulfo-SMCC). This activation results in a stable, sulfhydryl-reactive carrier protein. Thus allowing the maleimide-activated carrier protein to conjuga...Human Serum (All Male Donors) from Irvine Scientific
Description:sterile filtered, off the clot, all male donors, Total Protein: 4.5 to 8.5 g/dl...QXL 520 C2 maleimide from AnaSpec
Description:Although the mixed TAMRA isomers are predominantly used for labeling proteins, the single isomers are increasingly preferred for labeling peptides and nucleotides because they give better resolution in HPLC purification that is often required in the conjugation processes. 5-TAMRA is more often used than 6-TAMRA for labeling peptides and proteins. 6-TAMRA is predominately used for labeling nucleot...Pesticide impairs male reproductive function
According to the May issue of the journal Epidemiology, high levels of DDT found in some Mexican workers suggest that pesticide can impair male reproductive function. The human body metabolises DDT to DDE. An international team of researchers took blood samples from 24 men aged 16 to 28 who had not been exposed to DDT in their work. In these men the high DDE levels correlated to low leve...New dimension in the treatment of female sexual dysfunction
Female sexual dysfunction is associated with loss of libido, low motivation and fatigue, most often occurring in women who have attained their menopause or whose ovaries had been removed surgically for some reason. Dehydroepiandosterone(DHEA), may serve as an effective treatment in such sexual dysfunction, according to a study released at the 96th annual meeting of the American Urologica...Male infertility in relation to cancer
Researhers from Britain examining the relationship between increasing rates of testicular cancer and decreasing sperm quality, have concluded men who have infertility problems have an increased risk of developing cancer. As reported in the issue of the British Medical Journal (BMJ), the study found a strong association between men with infertility problems and the subsequent risk of...Male infertility in relation to pesticide
Exposure to pesticides and solvents can further lower fertility among infertile men, a new report suggests.The study shows these chemicals may worsen the effect of pre-existing genetic or medical risk factors for infertility. The authors stress the findings should be treated with caution because they involved a selected population of infertile men, from a productive farming region in A...The Sturdier Sex?: Study by Pittsburgh Scientists Finds Female Stem Cells Work Better
Stem Cells Isolated from Females Regenerate Skeletal Muscle MoreEfficiently than Male Cells PITTSBURGH, April 09, 2007 /PRNewswire/ -- Female stem cellsderived from muscle have a greater ability to regenerate skeletalmuscle tissue than male cells, according to a study at Children'sHospital of Pittsburgh of UPMC. The study, which is being published in the April 9 issue of theJournal...