2,4,6-trinitrotoluene(TNT) and its derivatives are nitrogen-containing aromatic compounds having chemical and thermal stability at ambient temperature and pressure. TNT has high toxicity and mutagenic activity to huma...2,4,6-trinitrotoluene(TNT) and its derivatives are nitrogen-containing aromatic compounds having chemical and thermal stability at ambient temperature and pressure. TNT has high toxicity and mutagenic activity to humans, plants and animals, thus decontamination processes are necessary. Many microorganisms are capable to bioremediate TNT such as bacteria from the genera Pseudomonas,Enterobacter, Rhodococcus, Mycobacterium, Clostridium and Desulfovibrio: fungus such as Phanerochate and Stropharia species are able to perform TNT biotransformation under aerobic and anaerobic conditions. In this work we review the state of TNT biodegradation by various routes: aerobic, anaerobic,combined, fungal, enzymatic, and bio-electrochemical.展开更多
Microorganisms including bacteria,viruses,protozoa,and fungi living in the gastrointestinal tract are collectively known as the gut microbiota.Dysbiosis is the imbalance in microbial composition on or inside the body ...Microorganisms including bacteria,viruses,protozoa,and fungi living in the gastrointestinal tract are collectively known as the gut microbiota.Dysbiosis is the imbalance in microbial composition on or inside the body relative to healthy state.Altered Firmicutes to Bacteroidetes ratio and decreased abundance of Akkermansia muciniphila are the predominant gut dysbiosis associated with the pathogenesis of type 2 diabetes mellitus(T2DM)and metabolic syndrome.Pathophysiological mechanisms linking gut dysbiosis,and metabolic diseases and their complications include altered metabolism of short-chain fatty acids and bile acids,interaction with gut hormones,increased gut microbial metabolite trimethylamine-N-oxide,bacterial translocation/Leaky gut syndrome,and endotoxin production such as lipopolysaccharides.The association between the gut microbiota and glycemic agents,however,is much less understood and is the growing focus of research and conversation.Recent studies suggest that the gut microbiota and anti-diabetic medications are interdependent on each other,meaning that while anti-diabetic medications alter the gut microbiota,the gut microbiota also alters the efficacy of anti-diabetic medications.With increasing evidence regarding the significance of gut microbiota,it is imperative to review the role of gut microbiota in the pathogenesis of T2DM.This review also discusses the interaction between gut microbiota and the various medications used in the treatment of T2DM.展开更多
基金the Director of the School of Engineering and Science, Tecnológico de Monterrey, Campus Monterrey for his encouragement and financial supportthe financial support from CONACYT(Mexico)PhD scholarship No. 309171 for CCZ, SNI-C fellowship to RC and MR, FRAavesh green sustainability solutions S. De R. L. De. C. V. for their support
文摘2,4,6-trinitrotoluene(TNT) and its derivatives are nitrogen-containing aromatic compounds having chemical and thermal stability at ambient temperature and pressure. TNT has high toxicity and mutagenic activity to humans, plants and animals, thus decontamination processes are necessary. Many microorganisms are capable to bioremediate TNT such as bacteria from the genera Pseudomonas,Enterobacter, Rhodococcus, Mycobacterium, Clostridium and Desulfovibrio: fungus such as Phanerochate and Stropharia species are able to perform TNT biotransformation under aerobic and anaerobic conditions. In this work we review the state of TNT biodegradation by various routes: aerobic, anaerobic,combined, fungal, enzymatic, and bio-electrochemical.
文摘Microorganisms including bacteria,viruses,protozoa,and fungi living in the gastrointestinal tract are collectively known as the gut microbiota.Dysbiosis is the imbalance in microbial composition on or inside the body relative to healthy state.Altered Firmicutes to Bacteroidetes ratio and decreased abundance of Akkermansia muciniphila are the predominant gut dysbiosis associated with the pathogenesis of type 2 diabetes mellitus(T2DM)and metabolic syndrome.Pathophysiological mechanisms linking gut dysbiosis,and metabolic diseases and their complications include altered metabolism of short-chain fatty acids and bile acids,interaction with gut hormones,increased gut microbial metabolite trimethylamine-N-oxide,bacterial translocation/Leaky gut syndrome,and endotoxin production such as lipopolysaccharides.The association between the gut microbiota and glycemic agents,however,is much less understood and is the growing focus of research and conversation.Recent studies suggest that the gut microbiota and anti-diabetic medications are interdependent on each other,meaning that while anti-diabetic medications alter the gut microbiota,the gut microbiota also alters the efficacy of anti-diabetic medications.With increasing evidence regarding the significance of gut microbiota,it is imperative to review the role of gut microbiota in the pathogenesis of T2DM.This review also discusses the interaction between gut microbiota and the various medications used in the treatment of T2DM.
