Hormones, Regulators and Hippocampus, Volume 118 in the Vitamins and Hormones serial highlights new advances in the field, with this new volume presenting interesting chapters, including Thyroid hormone regulation of adult hippocampal neurogenesis – putative molecular and cellular mechanisms, Synergistic gene regulation by thyroid hormone and glucocorticoid in the hippocampus, Oxytocin and vasopressin in the hippocampus, Steroid hormones and hippocampal neurogenesis in the adult mammalian brain, Steroidogenic enzymes in the hippocampus: transcriptional regulation aspects, Ectonucleotidases in the hippocampus: spatial distribution and expression after ovariectomy and estradiol replacement, and much more.