Effects of Shenmai injection on the expression of p38MAPK and the apoptosis-related genes in lung injury induced by intestinal ischemia/reperfusion in rats / 中国应用生理学杂志

OBJECTIVE@#To observe the effects of Shenmai injection(SM) on p38MAPK and the apoptosis-related genes in lung injury induced by intestinal ischemia reperfusion (I/R) in rats and to investigate the protective mechanism of SM.@*METHODS@#Rat model of intestinal I/R injury was established with clamping of the superior mesenteric artery (SMA) for 60 min and then clamping was relieved for 60 min. Twenty-four SD rats were randomly divided into three groups with eight rats in each: control group, intestinal ischemia/reperfusion group(I/R group), Shenmai injection treated group (SM+I/R group). Lung wet/dry weight ratio(W/D), the contents of phosphatidylcholine (PC) and total phospholipid(TPL) which are the major ingredients of pulmonary surfactant were measured, as well as the expression levels of p38MAPK, Bcl-2 and Bax proteins in lung tissue were examined by using immunohistochemical method.@*RESULTS@#Compared with control group, lung W/D was significantly increased, the contents of PC and TPL were significantly decreased, the protein expression levels of p38MAPK, Bcl-2 and Bax were significantly increased in I/R group (all P＜0.01). But Bax protein expression was much greater than Bcl-2 protein expression, the ratio of Bcl-2 to Bax were significantly decreased in I/R group than that in control group (P＜0.01). Compared with I/R group, lung W/D was significantly decreased, while the contents of PC and TPL were significantly increased, the p38MAPK and Bax protein expression levels were significantly decreased in SM+I/R group (all P＜0.01); both Bcl-2 protein expression and the ratio of Bcl-2 to Bax were significantly increased in SM+I/R group than those in I/R group (P＜0.01). The correlation analysis indicated that the expression level of p38MAPK protein in lung tissue was negatively correlated with the contents of PC and the ratio of Bcl-2 to Bax (r is -0.787 and -0.731, all P＜0.01).@*CONCLUSION@#SM can protect the lung injury induced by intestinal I/R injury, which may be mediated by inhibiting the activation of p38MAPK, improving the ratio of Bcl-2 to Bax to inhibit lung apoptosis.

A Novel POGZ Mutation in a Patient with Intellectual Disability / 中山大学学报(医学科学版)

[Objective]Screening mutation sites of POGZ gene in 100 intellectual disability patients to explore their pathogenesis relationship.[Method]Genomic DNA was isolated from peripheral blood. All exons,exon-intron boundaries,5'UTR and 3'UTR of POGZ were amplified by PCR and PCR products were directly sequenced.[Results]A novel mutation was identified,and the mis?sense mutation disrupted the unique zing-finger like motif of POGZ,which is a critical element for binding Hp1. The mutated POGZ failed to bind with HP1 thus might lose its cell cycle regulation function.[Conclusion]Mutations of POGZ gene weighs more in intel?lectual disability etiology. Screening of POGZ in unexplained intellectual disability patients contributes to their pathogenesis analyze , screening of POGZ in pregnants with family history of intellectual disability can prevent intellectual disability from birthing.

Inflammatory myofibroblastic tumor with extensive involvement of the bladder in an adolescent: a case report.

Inflammatory myofibroblastic tumor (IMT) is a rare lesion of unclear pathogenesis that shows a wide, highly variable spectrum of clinical behavior. We describe the case of a 17-year-old boy with a large IMT that infiltrated the bladder, ileocecal junction, peritoneum and pelvic retroperitoneal space. The tumor was associated with extensive toughening and thickening of the bladder, and, although it showed a tendency for invasive growth, it affected mainly the bladder and adjacent tissue. To the best of our knowledge, this case report is the first to describe an IMT involving the entire bladder and several adjacent pelviabdominal organs. The bladder wall was tough and could hardly be cut by scalpel. Levels of inflammatory response markers such as C-reactive protein fell after surgery.