A man in his early 20s received a transplant of his own sperm-producing stem cells, which had been frozen since his childhood, in an attempt to regain fertility. Doctors are waiting to see if the ...

For sex sorted semen, the ability to shift the gender ratio of a calf crop comes from the fact that gender is determined by the sperm cell that fertilizes the egg. Sperm cells that result in a heifer ...

Research recently published by a Michigan State University scientist adds to the understanding of how mitochondria function during spermatogenesis, the process by which sperm cells are produced. Wang ...

Apr. 4, 2025 — New research shows how small shifts in the molecular makeup of a virus can profoundly alter its fate. These shifts could turn a deadly pathogen into ...

Mar. 11, 2025 — Researchers have identified genetic changes in blood stem cells from frequent blood donors that support the production of new, non-cancerous cells. Understanding the differences ...

A Minecraft player shares an interesting idea to make the Happy Ghast even better, and players debate how it could work in practice. The timing seems perfect too, as many Minecraft fans might want ...

Natural killer (NK) cells are the predominant innate lymphocyte subsets that mediate anti-tumor and anti-viral responses, and therefore possess promising clinical utilization. NK cells do not express ...

Cell growth usually refers to cell proliferation, the increase in cell numbers that occurs through repeated cell division. Cell growth can also refer to the enlargement of cell volume, which can ...

T cells are white blood cells that are important for adaptive immunity. They have unique cell surface receptors that are generated by randomly assorting genes. These receptors allow T cells to ...

A strong negative correlation was found between sperm motility and high abundance of Prevotella copri (>15% in overall species). Transplantation and colonisation of the microbes derived from HFD-fed ...

Neurons are cells in the body that are responsible for transmitting electrical signals through the nervous system. Different types of neurons affect the ability to move, which begins as an impulse, or ...