The analysis of follow-up results of 612 cases of cholecystolithiasis treated with the minimal invasive operation with gallbladder preserved via choledochoscopy / 中华外科杂志

<p><b>OBJECTIVE</b>To discuss the feasibility of the operation of minimal invasive with gallbladder preserved via choledochoscopy.</p><p><b>METHODS</b>From February 1992 to June 2006, there were 760 patients who underwent cholecystolithiasis treated with the minimal invasive operation with gallbladder preserved via choledochoscopy, among which there were 428 males and 332 females, aged from 18 to 81 years old. All cases were diagnosed by ultrasonography and their gallbladder functions were proved normal by the examination of oral cholecystography or ECT before operation. In the operation gallstones were removed from gallbladder completely.</p><p><b>RESULTS</b>There were 612 cases who were followed up for 1-15 years and the follow-up rate was 80.5%. All patients recovered well after operation. The post-operation rate of recurrence of gallstone was 0.49%, 4.39%, 5.83%, 6.60%, 7.21% and 8.38% within the first year, the second year, the third year, the fifth year, the seventh year and the ninth year respectively, rate of recurrence of gallstone were 10.11% within both the tenth and the fifteenth year.</p><p><b>CONCLUSIONS</b>The minimal invasive operation with gallbladder preserved via choledochoscopy is effective to cholecystolithiasis patients whose gallbladder function is normal. It is a feasible operation that preserves the normal functional gallbladder and improves the patients' life quality.</p>

Research Progress on Fermentation of Microbial Polysaccharide / 微生物学通报

Microbial is a renewable resource which can produce polysaccharide. Its unique physiological activities and broad applications are attracting increasing attention. In this article, the source and the fermenta- tion conditions of microbial polysaccharide was reviewed, with a view to provide a scientific basis for the production of the microbial polysaccharide.

Review on Biosorption of Heavy Metal by Moulds / 微生物学通报

Heavy metal treatment in wastewater by biosorption using moulds was introduced. Different uptake capacities of several different moulds were reviewed. Some factors affecting biosorption were summarized. The mechanism of moulds adsorption and techniques of immobilization were also discussed. In addition, the development tendency of heavy metal treatment in wastewater by biosorption using moulds was envisioned.

Research Progress on Natural Pigments Produced by Microorganisms / 微生物学通报

This article was a perspective study on natural pigment's new microbial resources,culture conditions,fermentation processes and genetic engineering strains,which provides some future direction for the development and application of natural pigment.