Antibacterial lanostane triterpenoids from .

A phytochemical investigation on the 80% EtOH extract of the fruiting bodies of resulted into the isolation of two previously undescribed lanostane triterpenoids, 7,11-dioxo-3-acetyloxy-26,27-dihydroxy-lanosta-8,24-diene () and 7,20-dioxo-3-acetyloxy-1115-dihydroxy-22,23,24,25,26,27-hexanorlanosta-8-ene (), togeher with one known lanostane triterpenoid ganodermanontriol (). Structural elucidation of all the compounds were performed by spectral methods such as 1D and 2D (HH COSY, HMQC, and HMBC) NMR spectroscopy. All the triterpenoids were evaluated for their antibacterial activities against six pathogenic microorganisms.

[Analysis of surveillance results of schistosomiasis in Hexi reservoir area from 2012 to 2015].

Objective: To understand the changes of schistosomiasis epidemic situation, so as to provide the evidence for formulating schistosomiasis control strategy in the Hexi reservoir area.

Methods: From 2012 to 2015, Xinyuan Village, Meishan Town in the north entrance of Hexi reservoir was selected as a monitoring site. According to the requirements of the monitoring program of schistosomiasis surveillance in Zhejiang Province, the infection was investigated by using the serological screening (IHA), and the basic situation of the surveillance site was also investigated.

[Effect of schistosomiasis control projects in Hexi Reservoir on Oncomelania snail control].

Objective: To evaluate the effect of schistosomiasis control projects in Hexi Reservoir on Oncomelania hupensis snail control.

Methods: The canal hardening + main water system widening + the overflow dam project, the concrete slope protection, the banking and reclamation + concrete slope protection project, the environment reform project, and the comprehensive treatment were implemented in the tail area, the hydro-fluctuation belt, the rainwater harvesting zoon of the upstream area, the dam area, and the downstream area of the reservoir, respectively. The changes of the snail situation were investigated before and after the construction of the reservoir, and the snail control effects of the schistosomiasis control projects in different parts of the reservoir were analyzed.

[Correlation of invasion, metastasis, and prognosis in low and middle rectal cancer].

Background & Objective: Several reports have showed that three histologic variables (venous invasion, regional lymph node status, and depth of primary tumor penetration) were associated with the prognosis of colorectal adenocarcinoma patients. Based on these variables, a new classification system has been recommended. This study was designed to evaluate prognostic significance and risk factors of neoplasm in low and middle rectal cancer.