ANT 260 Lecture Notes - Lecture 19: Thrifty Phenotype, Prenatal Nutrition, Microbiota

• School: Stony Brook University
• Department: Anthropology, Cultural and Archaeology
• Course: ANT 260
• Professor: Katheryn C.Twiss

Document Summary

Ant 260- lecture notes- lecture 19 ta lauren"s lecture on early life nutrition. Insulin-like growth factor 2: growth-promoting hormone during early gestation. Immune function: brain development, gastrointestinal health, growth, sexual function, appetite, anxiety, depression, ptsd, assimilation of ingested nutrients, composition of infant microbiomes, factors determining the biomes, gestational environment, delivery method, antibiotics, supplemental foods/fluids, hst genetics, breast vs bottle fed. Alpha diversity of the microbiome: species richness, number of unique bacterial species, species evenness, relative abundance of species. Importance of diversity: more gut niches are occupied, less space for new invaders to colonize, more complex ecology/more species mean more competition between bacteria for host resources. Vaginal microbiome: lower diversity and higher stability in bacterial composition during pregnancy. Mode of delivery: vaginal birth, lactobacillus (moms vaginal microbiomes, baby"s first exposure to outside bacteria, baby is coated and often swallows some, bacteria begins to colonize in baby stomach, cesarean delivery, staphylococcus, streptococcus (skin microbiome)