Evaluating the current protocol of influenza A (H1N1) based on the epidemic situations of Zhengzhou,a middle-sized city in China / 中华实验和临床病毒学杂志

<p><b>OBJECTIVE</b>From May 2009-January 2010, a total of 3768 biosamples were tested for influenza A (H1N1) infection at Zhengzhou center for disease control and prevention, China. 1452 cases were laboratory confirmed H1N1 infection and 2316 were considered suspected victims. To evaluate the current protocol of influenza A (H1N1) based on the epidemic situations of Zhengzhou, relationships among features were explored and whether additional clinical characteristics should be part of H1N1 diagnosis protocols were determined.</p><p><b>METHODS</b>Both clinical and epidemiologic findings as well as statistical analyses were described in this article. Test for independence between features related to the disease diagnosis has been proposed. Furthermore, logistic regression was carried out to measure the association among features and latent class analysis was performed to identify additional crucial features in laboratory confirmed H1N1 by building various latent models with different combinatorial features.</p><p><b>RESULTS</b>The mean generation time for H1N1 was estimated as 3.59 +/- 1.41 days (range = 2.01-7.26). The estimated infection rate was 0.258 +/- 0.088 3, and reproduction number was 1.94 (95% CI = 1.12-3.18). Our results revealed that the six features, including molecular detections using three separate primer/probe sets, gender, age and temperature, are all associated with clinical diagnosis of H1N1, and that three separate primer/probe sets for laboratory confirmed H1N1, age and temperature are associated with each other.</p><p><b>CONCLUSION</b>Additional clinical features applied into the H1N1 diagnosis with current three primers/probe sets can increase the diagnostic efficiency.</p>

Study on effect and mechanism of scutellaria baicalensis stem-leaf total flavonoid in regulating lipid metabolism / 中国中药杂志

<p><b>OBJECTIVE</b>To investigate the effect and mechanism of Scutellaria Baicalensis Stem-leaf Total Flavonoid (SSTF) on lipid metabolism in hyperlipidemic rat.</p><p><b>METHOD</b>On the basis of establishing hyperlipidemia rat model, blood lipids, lipid metabolic enzyme, antioxidative capacity were investigated after 30 days feeding of fatty emulsion.</p><p><b>RESULT</b>SSTF significantly reduced the serum TC, TG, LDL-C, ApoB concentration and increased HDL-C and ApoAI levels, improved the activity of lecithin cholesterol acyltransferase (LCAT). SSTF was shown to decreased MDA content in both serum and liver, increased serum SOD activity.</p><p><b>CONCLUSION</b>SSTF could remarkably modulate the lipid metabolic disorder in hyperlipidemic rats, and has a certain regulating function on lipoprotein, inferring that it could reduce the occuring of atherosclerosis. The mechanism of regulating lipid metabolism might be related with the increasing activity of LCAT and antioxidative capacity.</p>

Advance in the study of compounds inducing the expression of heme oxygenase-1 / 药学学报

Heme oxygenase-1 (HO-1) is a cellular stress protein, and its expression plays an important regulatory role in a lot of physiological and pathological processes. Although the expression of HO-1 in most tissues of body is low, a number of clinical and pharmacological experiments have proved that many compounds can induce HO-1 expression. The increase of HO-1 expression is the result of regulating different signaling pathways and transcription factors, and this induction of HO-1 is suggested to be partially therapeutic efficacy of these compounds. This article summarizes some kinds of compounds in this field of research at home and abroad over the last 10 years, and provides a brief analysis of the mechanism.