What are the feedback loops involved in hormonal control of reproduction?

Germ cell tumors of the brain most commonly involve or are found near the pituitary and pineal glands in the brain. Sep 27, 2023 ... Frequent in seminiferous tubules of testicles involved by postpubertal germ cell tumors and sometimes represents the only residual manifestation. Abstract Plethodon cinereus is favorable for a study of the history of the germ line. The germ cells are large, while the gonads are small and show an ... Growths that develop in egg cells are called ovarian germ cell tumors. These tumors may be benign (noncancerous) or malignant (cancerous). Oct 9, 2024 ... The ones that are produced by germ cell tumours are alpha-fetoprotein (AFP) and human chorionic gonadotrophin (HCG). Your child will have blood ... Apr 19, 2016 ... Research offers insights beyond maternal inheritance. It has been accepted wisdom for decades that most animals create germ cells ― those cells ... Germinomas. Germinomas are malignant germ cell tumors. Germinomas are also termed dysgerminoma when located in the ovaries; and seminoma when located in the ... Medline ® Abstract for Reference 4 of 'Intracranial germ cell tumors'. 4: Central Nervous System Tumours, 5th ed, WHO Classification of Tumours Editorial ... Cell. 1999 Jan 22;96(2):165-74. doi: 10.1016/s0092-8674(00)80557-7. Author. Overview. A type of cell that forms as a fetus (also called unborn baby or embryo) develops is called a germ cell. Germ cells are the cells that make the ...