Pierre and Marie Curie are best known for their pioneering work in the study of radioactivity, which led to their discovery in 1898 of the elements radium and polonium. Marie Curie, b.
Its functions are vital to life and are regulated by the endocrine system by hormones such as antidiuretic hormone, aldosterone, and parathyroid hormone. In humans, a normal kidney contains 800,000 to 1.5 million nephrons.
Compared to a mouse, a human has nearly 100 times more nephrons, the functional units of the kidneys. Humans may owe these abundant nephrons to a gene called SIX1, according to a new article. Embryonic day 15.5 mouse kidney next to a 15.5 week human fetal kidney with SIX2 (cyan) marking the nephron progenitor cells. The collecting duct system is red, and nuclei are in blue. The best laid plans of mice and men are a bit different -- at least when it comes to kidney development. Compared to a mouse, a human has nearly 100 times more nephrons, the functional units of the kidneys. Humans may owe these abundant nephrons to a gene called SIX1, according to a new article.