Epidemiological characteristics of mumps outbreaks in Guangzhou city from 2006-2018 / 中国学校卫生

Objective@#To analyze the epidemiological characteristics of mumps outbreaks in Guangzhou city from 2006 to 2018, and to provide evidence for prevention and control strategy of mumps.@*Methods@#Descriptive epidemiological method was used to analyze the reported data of mumps in Guangzhou from 2006 to 2018. The chi-square test was applied to analyze the outbreaks in different years and types of schools, and the attack rate in different types of schools. The spearman correlation was used to analyze between timing of intervention and duration of the outbreak.@*Results@#A total of 32 mumps outbreaks were reported during 2006-2018, with 992 reported mumps cases in 26 764 students (attack rate was 3.71%). The outbreaks peaked in 2006 (28.13%) and 2012 (18.75%). Mumps outbreaks occurred mainly in March to June and December. The highest peak was in April with 7 outbreaks accounting for 21.88%. The largest number of outbreaks occurred in Conghua district(9,28.13%) and the primary schools(25,78.13%). Spearman correlation coefficient was 0.35 between timing of intervention and duration outbreak (r=0.35，P=0.05).@*Conclusion@#Primary schools in the suburb of Guangzhou are at high-risk for mumps outbreak. Early intervention can shorten the duration of outbreaks. Morning check, school attendance and mumps-specific IgG antibody surveillance should be improved.

Effects of resveratrol on cell proliferation in glomerular mesangial cells cultured under high glucose by inhibiting SphK1/AP-1 signal pathway / 中国药理学通报

Aim To observe the expression of FN and TGF-β1 in the glomerular mesangial cells induced by high-glucose after the intervention of resveratrol, and further discuss its influence on SphK1/AP-1 signaling pathway. Methods The rat glomerular mesangial cells induced by high glucose were used to observe the effects of resveratrol on cell proliferation after interven-tion. The survival vitality and proliferation of glomeru-lar mesangial cells were determined by MTT, and then FN, TGF-β1 and SphK1 protein expression were deter-mined by Western blot. Also, AP-1 activity was deter- mined by EMSA assay. Results Resveratrol could obviously inhibit the proliferation of high glucose-in-duced glomerular mesangial cells, lower SphK1 expres-sion, inhibit AP-1 activity and thus inhibit the expres-sion of FN, TGF-β1. Conclusions Resveratrol inhib-its the proliferation of high glucose-induced glomerular mesangial cells, which may be closely related to the in-hibition of SphK1/AP-1 signaling pathway.

Paeonol up-regulates CKIP-1 to resist high glucose-induced fibrosis in glomerular mesangial cells / 中国药理学通报

Aim To observe whether paeonol can in-hibit fibronectin (FN) and intercellular cell adhension molecule-1 (ICAM-1) expressions in high glucose (HG)-induced glomerular mesangial cells(GMCs) via up-regulating CKIP-1 and activating the Nrf2 signaling pathway. Methods The effects of paeonol on the ex-pressions of CKIP-1,Nrf2,FN and ICAM-1 were eval-uated in GMCs treated with HG. Small interfering RNA was used to deplete CKIP-1 protein expression, and Western bolt was used to detect the expressions of Nrf2, HO-1 and SOD1. DHE fluorescent probe tech-nique was used to determine intracellular superoxide level. Results The protein levels of CKIP-1 and Nrf2 were elevated by paeonol in HG-treated GMCs. In the meanwhile,the expressions of Nrf2 downstream antiox-idant enzymes, i.e. HO-1 and SOD1, were also up-regulated by paeonol, which was accompanied by re-ductions of superoxide and H2O2levels. Importantly, paeonol reversed the excessive accumulation of FN and ICAM-1 in HG-induced GMCs. si-CKIP-1 decreased the up-regulation of Nrf2,HO-1 and SOD1 expressions during paeonol treatment, which was accompanied by increased superoxide and H2O2levels. Furthermore, si-CKIP-1 reversed the down-regulated levels of FN and ICAM-1 induced by paeonol. Conclusion Pae-onol inhibits the expressions of FN and ICAM-1 in HG-treated GMCs possibly by up-regulating CKIP-1 and activating the Nrf2 signaling pathway.

Berberine ameliorates renal injury in streptozotocin-induced diabetic rats by suppression of both oxidative stress and aldose reductase / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Berberine is one of the main constituents of Coptidis rhizoma (CR) and Cortex phellodendri. In this study, we investigated the beneficial effects of berberine on renal function and its possible mechanisms in rats with diabetic nephropathy (DN).</p><p><b>METHODS</b>Male Wistar rats were divided into three groups: normal, diabetic model, and berberine treatment groups. Rats in the diabetic model and berberine treatment groups were induced to diabetes by intraperitonal injection with streptozotocin (STZ). Glomerular area, glomerular volume, fasting blood glucose (FBG), blood urea nitrogen (BUN), serum creatinine (Cr) and urine protein for 24 hours (UP24h) were measured using commercially available kits. Meanwhile, the activity of superoxide dismutase (SOD), content of malondialdehyde (MDA) in serum, activity of aldose reductase (AR) and the expression of AR mRNA and protein in kidney were detected by different methods.</p><p><b>RESULTS</b>The results showed that oral administration of berberine (200 mg x kg(-1) x d(-1)) significantly ameliorated the ratio of kidney weight to body weight. Glomerular area, glomerular volume, FBG, BUN, Cr and UP24h were significantly decreased in the berberine treatment group compared with the diabetic model group (P < 0.05). Berberine treatment significantly increased serum SOD activity and decreased the content of MDA compared with diabetic model group (P < 0.05). AR activity as well as the expression of AR mRNA and protein in the kidney was markedly decreased in the berberine treatment group compared with diabetic model group (P < 0.05).</p><p><b>CONCLUSION</b>These results suggested that berberine could ameliorate renal dysfunction in DN rats through controlling blood glucose, reduction of oxidative stress and inhibition of the activation of the polyol pathway.</p>

Effect of Astragalus membranaceus injection on the activity of the intestinal mucosal mast cells after hemorrhagic shock-reperfusion in rats / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>The mechanism of mucosal damage induced by ischemia-reperfusion (IR) after hemorrhagic shock is complex; mast cells (MC) degranulation is associated with the mucosal damage. Astragalus membranaceus can protect intestinal mucosa against intestinal oxidative damage after hemorrhagic shock, and some antioxidant agents could prevent MC against degranulation. This study aimed to observe the effects of astragalus membranaceus injection on the activity of intestinal mucosal mast cells (IMMC) after hemorrhage shock-reperfusion in rats.</p><p><b>METHODS</b>Thirty-two Wistar rats were randomly divided into the normal group, model group, low dosage group, (treated with Astragalus membranacaus injection, 10 g crude medication/kg) and high dosage group (treated with Astragalus membranacaus injection, 20 g crude medication/kg). The rat model of hemorrhagic shock-reperfusion was induced by hemorrhage for 60 minutes followed by 90 minutes of reperfusion. The animals were administrated with 3 ml of the test drug solution before reperfusion. At the end of study, intestinal pathology, ultrastructure of IMMC, and expression of tryptase were assayed. The levels of malondisldehyde (MDA), TNF-alpha, histamine, and superoxide dismutase (SOD) activity in intestine were detected, and the number of IMMC was counted.</p><p><b>RESULTS</b>The Chiu's score of the rats in the model group was higher than in other groups (P < 0.01). The Chiu's score in the high dosage group was higher than that in the low dosage group (P < 0.05). Hemorrhage-reperfusion induced IMMC degranulation: Astragalus membranaceus injection attenuated this degranulation. Expression of tryptase and the number of IMMC in the model group increased compared with the other groups (P < 0.01) and was significantly reduced by the treatments of Astragalus membranaceus injection at both doses. There was no significant difference between the two treatment groups (P > 0.05). MDA content and concentration of TNF-alpha in the model group were higher than that in the other three groups (P < 0.05), and the concentration of TNF-alpha in the low dosage group was higher than that in the high dosage group (P < 0.05). SOD activity and the concentration of histamine in the model group were lower than the other three groups (P < 0.05). There was a negative correlation between the Chiu's score and the concentration of histamine and a positive correlation between the Chiu's score and the concentration of TNF-alpha and between the SOD activity and the concentration of histamine in the four groups (P < 0.05).</p><p><b>CONCLUSION</b>Astragalus membranaceus injection may reduce the damage to small intestine mucosa by inhibiting the activated IMMC after hemorrhagic shock.</p>

Effect of jiawei yupingfeng powder on T-lymphocyte subsets in patients with senile chronic bronchitis in acute onset stage / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To explore the effect of Jiawei Yupingfeng Powder (JYP) on T-lymphocyte subsets in patients with senile chronic bronchitis in acute onset stage (SCB-AOS).</p><p><b>METHODS</b>Patients were divided, according to the randomized controlled principle, into two groups, the 44 patients in the treated group and the 40 in the control group. The conventional western medicinal therapy was given to both groups, but to the treated group, JYP was administered additionally. The therapeutic course to them was 14 days. Changes of CD3, CD4, CD8 and the ratio of them were observed.</p><p><b>RESULTS</b>Increase of CD3, CD4 and CD4/CD8 (P < 0.05) and decrease of CD8 (P < 0.01) were significantly shown in the treated group after treatment, but no change in the control group. Besides, comparison of the total effective rate in the two groups also showed significant difference (P < 0.05).</p><p><b>CONCLUSION</b>Cellular immune function disturbance exists in patients with SCB-AOS, JYP could enhance the efficacy by way of modulating cellular immune function.</p>

The effect of HBO on RhoA expression and nerve function in rat focal cerebral ischemic model / 中华物理医学与康复杂志

Objective To evaluated the effect of hyperbaric oxygenation therapy(HBO)on the RhoA ex- pression and nerve function after transient focal cerebral ischemia in a rat model of middle cerebral artery occlusion. Methods One hundred and twenty-six healthy Sprague-Dawley rats were used and randomly divided into a sham op- eration group(shame group,n=42),a treatment group(n=42),and a control group(n=42).The animal model of middle cerebral artery occlusion(MCAO)was established by using the Zea-Longa method with the animals in the treatment and the control groups,and sham operation was performed with those in the sham group.HBO was applied to the animals in the treatment group.The RhoA protein expression was observed by using immunohistochemistry technique,and the neurological function was evaluated by Bederson's scale at different time points after MCAO.Re- sults(1)Weakly positive expression of RhoA could be located in bilateral cortex and the basal ganglia in the sham group.The expression of RhoA in the treatment group and control group was increased as early as 6 hours after MCAO when compared with that of the sham group,and peaked at 48 h after MCAO and decreased after then,but was still higher than that of the shame group at 7th day to 14th day after MCAO.It was also found that the expression of RhoA of the treatment group was significantly lower than that of the control group(P

Effects of antioxidation and ceramide of improved prescription of didang-tang (IPDT) on exprimental atherosclerosis rabbits / 中国中药杂志

<p><b>OBJECTIVE</b>To observe the effects of antioxidation and ceramide content of improved prescription of Didang-tang (IPDT) on exprimental atherosclerosis(AS) rabbits.</p><p><b>METHOD</b>Plasm Superoxide Dismutase(SOD) activity was detected with micro-content fast detecting method, Plasm Malondialdehyde(MDA) content with improved BaMuGuoFu method, and Aortic Ceramide (CER) content with thinlayer scanning.</p><p><b>RESULT</b>IPDT could effectivly improve plasma SOD activity and decrease plasma MDA content and decrease aortic CER content.</p><p><b>CONCLUSION</b>IPDT on exprimental AS is related to the improvement of antioxidation and decrease of CER content.</p>