A male semen analysis is helpful when trying to get pregnant. Experts estimate that male factors are to blame in up to 40% of couples who experience fertility issues. A male semen analysis is a valuable tool for couples as they begin their fertility journey. As a result, many couples find...
As we have previously said, the function of the sperm is sexual reproduction. For this to happen, coitus between a man and a woman is necessary to bring their gametes into contact. The male sperm are suspended in semen, which is expelled into the female reproductive tract through ejaculation...
resulting in formation of chemically-reactive metabolites (e.g., epoxide, quinone and nitroso derivatives), is believed to be the initiating event in many forms of drug hypersensitivity reactions
Theprostateis a gland that makes some of the fluid that’s in semen. A finger inserted into the anus can stimulate the prostate. Some men can reach orgasm this way. Can fingering help women have more and better orgasms? Fingering is one of the easiest and most effective ways to stimulate...
However, the vasectomized male will go into a situation of azoospermia, that is, the total absence of sperm in the semen. Vasectomy is a simpler, safer, and more effective procedure than tubal ligation for women. In addition, it is also cheaper and, for all this, it is the preferred ...
Semenova, E. A., Nagel, R. & Berns, A. Origins, genetic landscape, and emerging therapies of small cell lung cancer. Genes Dev. 29, 1447–1462 (2015). CAS PubMed PubMed Central Google Scholar Zhang, S. & Cui, W. Sox2, a key factor in the regulation of pluripotency and neural...
This phenomenon is another reason for white tissue in urine that only affects men. “Retrograde ejaculation is when semen goes backward into the bladder instead of forward out of the penis when a male ejaculates,” Dr. Bohl says. “Normally, during orgasm, the muscles at the base of the ...
Unlike the β-lactam antibiotics, the majority of drugs are not directly reactive. As such metabolic activation, resulting in forma- tion of chemically-reactive metabolites (e.g., epoxide, qui- none and nitroso derivatives), is believed to be the initiating event in many forms of drug ...
A study by Gann in 1984 showed that BHT was capable of promoting chemically-induced forestomach and bladder cancer in male rats. This was followed in 1986, with a chronic study on BHT in rats by Olsen. Dose-related increases in the numbers of hepatocellular adenomas and carcinomas were sta...
Forensic scientists can use electrophoresis to break down blood, saliva or semen so that the molecules can be analyzed by treating them with enzymes. Electrophoresis uses an electric field to separate biological molecules based on their electric charge, according to the biology department of Gustavus ...