Résumé
Gangrenous cholecystitis is a kind of acute cholecystitis, whose course of disease progresses rapidly, early diagnosis is difficult and mortality is high, and clinicians are prone to misdiagnosis and missed diagnosis in clinical work.However, gangrenous cholecystitis has been ignored in various guidelines.This paper systematically summarized the pathogenesis, pathological manifestations, epidemiology, clinical diagnosis and treatment of gangrenous cholecystitis, hoping to provide a complete and clear diagnosis and treatment process for clinicians.
Sujets)
Humains , Cholécystectomie , Cholécystite/chirurgie , Cholécystite aigüe/chirurgie , Gangrène/chirurgieRésumé
<p><b>OBJECTIVE</b>To study the effect of ultrafiltration-membrane extracts of Radix Rehmanniae Praeparata (UMERRP) on theproliferation and genetic stability of bone marrow-derived mesenchymal stem cells (BMSCs) induced by cadmium chloride (CdCl2).</p><p><b>METHODS</b>Protective effects on the proliferation, micronuclear rates, chromosome aberration rates, and apoptosis rates were observed by micronuclei test, karyotype analysis, and flow cytometry.</p><p><b>RESULTS</b>Compared with the CdCl2 group, UMERRP with different molecular weights at 0. 8 g/L could obviously promote the proliferation (P <0. 05). Compared with the control group, micronuclear rates, chromosome aberration rates, and apoptosis rates were obviously enhanced in the CdCl2 group (P <0. 05). Compared with the CdCl2 group, UMERRP with different molecular weights could obviously decreased CdCl2 induced micronuclear rates, chromosome aberration rates, and apoptosis rates (P <0. 05). Of them, BMSC micronuclear rates and chromosome aberration rates decreased most obvious in UMERRP groups with molecular weight below 10 000 (P <0. 05). The apoptosis rate decreased most obviously in UMERRP groups with molecular weight ranging 100 000 and 200 000 (P <0. 05).</p><p><b>CONCLUSION</b>UMERRP could reduce CdCl2 induced micronuclear rates, chromosome aberration rates, and apoptosis rates.</p>