A new LBBB is always pathological and can be a sign of myocardial infarction. The criteria (Sgarbossa [1]) that can be used in case of a LBBB and suspicion of infarction are: ST elevation > 1mm in leads with a positive QRS complex (concordance in ST deviation) (score 5)
Churning Out Vitamins. Your microbiota also work as vitamin-production plants. Bacteria in the gut synthesize vitamins, and those that they donât use are excreted to benefit their host. In humans, gut bacteria secrete vitamin B12 and a less familiar micronutrient called vitamin K.he resulting understanding of the microbiomeâs connections to human health may lead to a new wave of disease prevention and treatment in which very small, historically unheralded entities have big effects.
Some vitamins are also synthesized by bacteria in the lower intestine, although their contribution to absorbed vitamins is not likely very large. Photo Credit roobcio/iStock/Getty Images.verview. Vitamins are essential molecules that must be taken in from the diet because the human body is incapable of synthesizing them. Water-soluble vitamins are absorbed in the upper small intestine.