Development of the endocrine system alpha cells. The insulin concentration within the fetal pancreas is 3.6 pmol/g at seven to ten weeks, which rises to 30 pmol/g at 16–25 weeks of gestation. Near term, the insulin concentration increases to 93 pmol/g. The endocrine cells have dispersed throughout the body within 10 weeks. At 31 weeks of development, the islets of Langerhans have differentiated. While the fetal pancreas has functional beta cells by 14 to 24 weeks of gestation, the amount of insulin that is released into the bloodstream is relatively low. In a study of pregnant women carrying fetuses in the mid-gestation and near term
Adrift Just Off the Islets of Langerhans Adrift Just Off the Islets of Langerhans "Adrift Just Off the Islets of Langerhans: Latitude 38° 54' N, Longitude 77° 00' 13" W" is an award-winning 1974 science fiction novelette by Harlan Ellison. It was originally published in "The Magazine of Fantasy & Science Fiction" in October 1974, and subsequently republished in Ellison's 1975 anthology "Deathbird Stories", in the 1991 Byron Preiss-edited anthology "The Ultimate Werewolf", and in Ellison's 2006 anthology "The Essential Ellison: A 50 Year Retrospective". Larry Talbot wants to die, but cannot unless he first knows the exact physical location of his soul. To this end, he