Neonatal mice resist the lethal effect of Waglerin-1. Because Waglerin-1 blocks the nicotinic acetylcholine receptor of mature end-plates, the appearance of lethality may result from the epsilon- for gamma-subunit substitution. In support of this hypothesis, adult knockout (KO) mice lacking the gene coding for the epsilon-subunit resist the lethal effect of Waglerin-1. In contrast, heterozygous...

Objective(s): Progestrone is a prequisite for pre-implantation angiogenesis and induce decidual angiogenesis. It is unknown the effect of progestrone administration on the endometrium of hyperstimulated mice at pre-implantation time. Material and Methods: Adult female NMRI mice were divided in three groups [control group, ovarian stimulated group and progestrone treated mice after ovarian stimu...

Introduction: Idiopathic pulmonary fibrosis (IPF) is a relentlessly progressive and usually fatal lung disease of unknown etiology for which no effective treatments currently exist. In the adults type I and II pneumocytes, forms Components of the alveolar epithelial cells. In this study, we investigated the effect of thalidomide on the alveolar epithelial cells (type I and II pneumocytes) in ...

The ability to maintain and study human tissues in in-vivo environment has proved to be a valuable tool in breast cancer research for several decades. The most widely tissues have been xenografts established human breast cancer cell lines into athymic nude mice. The aim of this study was to provide a new accurate and affordable method for the establishment of breast cancer xenograftin nude mice...

Ingestion of specific probiotics, namely "psychobiotics", produces psychotropic effects on behavior and affects the hypothalamic-pituitary-adrenal axis and neurochemicals in the brain. We examined the psychotropic effects of a potential psychobiotic bacterium, Lactobacillus plantarum strain PS128 (PS128), on mice subjected to early life stress (ELS) and on naïve adult mice. Behavioral tests rev...

Estrogen regulates bone mass in women and men, but the underlying cellular mechanisms of estrogen action on remain unclear. Although both receptor (ER)α ERβ are expressed cells, ERα is dominant for skeletal action. Previous studies using either global or cell-specific deletion provided important insights, each these approaches had limitations. Specifically, high circulating sex steroid levels k...

Parasitic-infection studies on rhesus macaque monkeys have shown juvenile animals to be more susceptible to infection than adults, but the immunological mechanism for this is not known. In this study, we investigated the age-dependent genesis of helminth-induced type 2 immune responses using adult (6-8-wk-old) and juvenile (21-28-d-old) mice. Following infection with the parasitic nematode Nipp...