Pernicious Pouch of Problems: A Challenging Case of Massive Hemorrhage Secondary to Jejunal Diverticular Bleeding.

Small bowel (SB) diverticulosis is an uncommon diagnosis and a rare cause of gastrointestinal (GI) bleeding. A particularly rare form of SB diverticular disease, jejunal diverticulosis, is usually discovered due to complications, such as hemorrhage, obstruction, or perforation. Owing in part to its rarity, jejunal diverticular bleeding can be difficult to identify and treat, resulting in increased morbidity and mortality.

Does endogenous testosterone mediate the lower preconditioning threshold in males?

Background: Preconditioning is injury-induced protection from subsequent insult. Recent data indicates that males have lower preconditioning thresholds compared to females. Therefore, we hypothesized that testosterone may mediate the lower preconditioning threshold observed in males.

Endogenous estrogen mediates a higher threshold for endotoxin-induced myocardial protection in females.

Myocardial endotoxin tolerance may be induced in both males and females; however, it remains unknown whether there are mechanistic and threshold differences between the sexes. We hypothesized that endogenous estrogen mediates a higher threshold for endotoxin (ETX)-induced protection in females. Adult proestrus and ovariectomized (OVX) female rats were preconditioned (PC) with intraperitoneal injections of 125 (PC+125) or 500 (PC+500) microg/kg Salmonella typhimurium LPS (ETX) or normal saline (PC-).