What are the potential advantages and disadvantages of long-acting reversible male contraceptives?

Sep 22, 2021 ... Mouse pluripotent stem cells can differentiate into functional sperm. These sperm were successfully used to produce healthy, fertile offspring. It all starts with sperm cells and an egg. Sperm are microscopic cells that are made in testicles. Sperm mixes with other fluids to make semen (cum), which ... Jun 5, 2019 ... This process, called in vitro gametogenesis (IVG), raises the possibility that babies could be made using muscle or liver or blood cells. Aug 21, 2013 ... Starting with the skin cells of mice in vitro, he created primordial germ cells (PGCs), which can develop into both sperm and eggs. To prove ... Dec 1, 2021 ... 14, a team of scientists at Tianjin University, in eastern China, detailed how they developed a bioplastic made with DNA from salmon sperm, ... Most of the fluid in semen is made up of secretions from male reproductive organs. Semen contains citric acid, free amino acids, fructose, enzymes, ... Sep 13, 2017 ... Scientists have been able to observe sperm cells since the invention of the optical microscope. But capturing their unique swimming motion ... May 29, 2024 ... The sperm in semen comes from the testicles, but the seminal fluid is produced in other organs, including the prostate. Feb 25, 2016 ... A team of Chinese researchers reports turning a dish of a certain type of mouse stem cell into spermlike cells, which then were used to fertilize eggs and ... Oct 5, 2012 ... Nine elements of the PIXE spectrum were included in the analysis of isolated sperm: zinc, copper, calcium, sulfur, chlorine, potassium, titanium ...