Sagittaria sagittifolia polysaccharides regulates Nrf2/HO-1 to relieve liver injury caused by multiple heavy metals in vivo and in vitro / 中国中药杂志

This study explored whether Sagittaria sagittifolia polysaccharides(SSP) activates the nuclear factor erythroid-2-related factor2(Nrf2)/heme oxygenase-1(HO-1) signaling pathway to protect against liver damage jointly induced by multiple heavy metals. First, based on the proportion of dietary intake of six heavy metals in rice available in Beijing market, a heavy metal mixture was prepared for inducing mouse liver injury and HepG2 cell injury. Forty male Kunming mice were divided into five groups: control group, model group, glutathione positive control group, and low-and high-dose SSP groups, with eight mice in each group. After 30 days of intragastric administration, the liver injury in mice was observed by HE staining. In the in vitro experiment, MTT assay was conducted to detect the effects of SSP at 0.25, 0.5, 1, and 2 mg·mL~(-1) on HepG2 cell survival at different time points. The content of alanine transaminase(ALT) and aspartate aminotransferase(AST) in the 48-h cell culture fluid was measured using micro-plate cultivation method, followed by the detection of the change in reactive oxygen species(ROS) content by flow cytometry. The mRNA expression levels of Nrf2 and HO-1 in cells were determined by RT-PCR, and their protein expression by Western blot. HE staining results showed that compared with the model group, the SSP administration groups exhibited significantly alleviated inflammatory cell infiltration and fatty infiltration in the liver, with better outcomes observed in the high-dose SSP group. In the in vitro MTT assay, compared with the model group, SSP at four concentrations all significantly increased the cell survival rate, decreased the ALT, AST, and ROS content(P<0.05), and down-regulated Nrf2 and HO-1 mRNA and protein expression(P<0.05). SSP significantly improves inflammatory infiltration in the liver tissue of mice exposed to a variety of heavy metals and corrects the liver fat degeneration, which may be related to its regulation of the Nrf2/HO-1 signaling pathway, reduction of ROS, and alleviation of oxidative damage.

Preventive and therapeutic effects of sanguinarine chloride on sodium arsenite-induced liver damage in mice / 环境与职业医学

Background Natural product sanguinarine chloride (SC) can significantly alleviate liver fibrosis and acute liver injury in mice, but whether it has a protective effect on mouse liver injury caused by sodium arsenite (SA) has not been studied. Objective To verify if SC may present preventive and therapeutic effects on SA-induced liver injury in mice. Methods A total of 140 SPF male Kunming mice were randomly divided into two sub-studies, which included a prevention sub-study and a treatment sub-study. In each sub-study, a blank group (normal saline), a model group (5 mg·kg−1 SA), and a positive control group (11.375 mg·kg−1 bicyclol and 182 mg·kg−1 glutathione), as well as SC low, medium, and high dose groups (25, 50, and 100 mg·kg−1) were arranged with 10 mice in each group. In the prevention sub-study, the blank group was given normal saline, the model group was given SA, and the other groups (the SC low, medium, and high dose groups and the positive control group) were given the corresponding treatment 30 min before gavage of SA, once a day, for 28 d. In the treatment sub-study, except for the blank group which was given normal saline, the other groups were given SA for 28 d, then the model group was given normal saline, and the other groups were given the corresponding treatment every day for 28 d. After the experiment, the mice were sacrificed to evaluate selected physiological and biochemical indicators in serum and liver tissue and to observe histopathological changes after HE staining. Results In either sub-study of preventive effect or treatment effect: compared with the blank group, body weight, liver weight, liver coefficient, as well as serum alanine transaminase (ALT), aspartate aminotransferase (AST), total bilirubin (TBIL), malondialdehyde (MDA), glutathione peroxidase (GSH), and superoxide dismutase (SOD) among all SC groups were not significantly different (P>0.05); but compared with the model group, the SC groups showed increased body weight (P<0.01), decreased liver weight and liver coefficient (P<0.01), reduced ALT, AST, TBIL, and MDA (P<0.05 or P<0.01), and increased GSH and SOD with (P<0.05 or P<0.01) or without significance; compared with the positive control group, no differences were found in the above indicators (P＞0.05). The result of histopathological evaluation showed that the SC groups had a clear liver lobule structure, neatly arranged hepatic cords, and less infiltration of inflammatory cells. Conclusion SC has both preventive and therapeutic effects on SA-induced liver injury in mice.

Preventive effect of HARRT combined with SMZ-TMP on opportunistic infection in AIDS patients / 公共卫生与预防医学

Objective To investigate the preventive effect of highly effective antiretroviral therapy (HARRT) combined with SMZ-TMP on opportunistic infection (OIs) in patients with HIV/AIDS. Methods The 6-month follow-up data of 170 AIDS patients in the Department of Infectious Diseases of Nantong Third People's Hospital were analyzed retrospectively. All patients received HARRT. According to whether SMZ-TMP was used for OIs preventive treatment, the patients were divided into a prevention group (n=47) and a non-prevention group (n=123). The demographic data such as gender, age, occupation and education level of the two groups were collected. The incidence of OIs in the 12-month follow-up period of the two groups was analyzed and compared, and the single factor unconditional logistic regression analysis and multi factor unconditional logistic regression analysis were carried out for AIDS patients taking SMZ-TMP. Results The proportion of prophylactic use of SMZ-TMP in 170 AIDS patients was only 27.65%, and the incidence of OIs in the prevention group was 31.91%, which was significantly lower than that in the non-prevention group (57.72%) (χ2=9.062, P2=7.419, P2=4.473, 4.322, 4.350, 3.982, 5.656, P<0.05). Univariate and multivariate unconditional logistic regression analysis showed that the benefits of SMZ-TMP, doctors' detailed recommendation of SMZ-TMP and higher education level were all influencing factors (95% CI: 135.79-3748.36, 107.43-2954.67, 1.873-25.94). Conclusion Prophylactic use of SMZ-TMP significantly reduced the incidence of AIDS related OIs, but the proportion of SMZ-TMP use was relatively low. It is necessary to take relevant measures according to the influencing factors of taking SMZ-TMP to improve the use rate of SMZ-TMP in AIDS patients.

Preventive effects of Rhizoma Coptidis and Atractylodes on mice with gastric-ulcer / 中南大学学报(医学版)

OBJECTIVES@#To detemine preventive effects of compound formula Rhizoma Coptidis and Atractylodes on mice with gastric-ulcer.@*METHODS@#The mice were randomly divided into a normal group, a gastric ulcer group, a ranitidine positive drug group, a Rhizoma Coptidis group, an Atractylodes group, and a Rhizoma Coptidis plus Atractylodes group (the ratios of Coptidis to Atractylodes were 9꞉1, 8꞉2, 7꞉3, 6꞉4, 5꞉5, or 4꞉6, respectively). Gastric ulcer models were established by intragastric administration of anhydrous ethanol after 6 days of preventive infusion. The mice were killed 6 days after the treatments. The whole stomach was opened to observe gross morphology of gastric mucosa. The pathological changes of gastric tissue were observed under microscope, and serum samples were collected to detect the contents of superoxide dimutase (SOD), malondialdehyde (MDA), NO, and endothelin-1 (ET-1).@*RESULTS@#The Rhizoma Coptidis and Atractylodes decoction significantly decreased ulcer area (<0.001), and the effects of compound formula are better than those of Coptidis and Atractylodes alone (<0.05, <0.01, or <0.001). The anti-ulcer effect of compound formula (Coptidis꞉Atractylodes=6꞉4) was the best one, and the anti-gastric ulcer effect of the high-dose group was significantly better than that of the ranitidine-positive group (<0.001). The ranitidine positive drug group, the high-dose group of Rhizoma Coptidis, the high-dose group of Atractylodes, and the high-dose group of Rhizoma Coptidis-Atractylodes (6꞉4) significantly reduced MDA, ET-1 (<0.01 or <0.001), and significantly increased SOD, NO in serum (<0.01 or <0.001).@*CONCLUSIONS@#Rhizoma Coptidis and Atractylodes decoction exerts the effect on preventing ethanol-induced gastric ulcer in mice in a ratio-dependent and dose-dependent manner. The mechanism might be related to anti-oxidation and relaxion of blood vessels. The combination of the two drugs shows a synergistic effect.

Preventive effect of low-dose aspirin on preeclampsia occured in preeclampsia high-risk pregnant women and its mechanism / 吉林大学学报(医学版)

Objective: To observe the preventive effect of low-dose aspirin (LDA) in the preeclampsia (PE) high-risk pregnant women, and to elucidate the feasibility and clinical value of LDA in preventing PE. Methods: A total of 112 PE high-risk pregnant women with 16-22 gestational weeks were selected and randomly divided into control group (n = 5 8) and observation group (n = 5 4). The patients in control group were given placebo treatment, the patients in observation group were given 75 mg • d-1 LDA before going to bed until delivery. The incidence of PE, gestational age of onset, gestational age of delivery, neonatal birth weight, delivery mode, neonatal outcomes of the patients in two groups were observed. The patients in two groups were divided in to PE (+) (with PE) group and PE (-) (without PE) group according to whether PE occured or not. The coagulation function and the platelet parameters of the patients in two groups were detected; the levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), thromboxane A2 (TXA2), P-selectin in placenta tissue of the patients in two groups were detected by ELISA method. Results: Compared with control group, the incidence of PE and the incidence of premature delivery of the patients in observation group were significantly decreased (P < 0. 05); the gestational age of delivery of the patients in observation group were prolonged (P < 0. 05), the neonatal birth weight was increased (P < 0. 01), and the full-term birth rate was increased (P < 0. 01). Compared with the PE (+) and PE (-) patients in control group, the prothrombin time (PT) and activated partial thromboplastin time (APTT) of the PE (-) patients in observation group were increased (P < 0. 01), and the PT of the PE (+) patients in observation group was decreased (P < 0. 01); the levels of prothrombin activity (P T A), fibrinogen (FIB) and D-dimer (D-D) of the PE (+) and PE (-) patients in observation group were decreased. Compared with control group, the levels of IL-6, TNF-αa, COX-2, TXA2 and P-selectin in placenta tissue of the patients in observation group were decreased significantly (P < 0. 01). Conclusion: LDA treatment within 16 - 22 weeks of gestation can effectively prevent the occurrence of PE in the PE high-risk pregnant women, its mechanism is related to improving the coagulation function and inhibiting the protein expressions of inflammatory factors in the PE high-risk pregnant women.

Effect of Statins, Metformin, Angiotensin-Converting Enzyme Inhibitors, and Angiotensin II Receptor Blockers on Age-Related Macular Degeneration

PURPOSE: Statins, metformin, angiotensin-converting enzyme (ACE) inhibitors, and angiotensin receptor blockers (ARBs) have been suggested for treating age-related macular degeneration (AMD) due to their pleiotropic effects. Therefore, we investigated whether these drugs prevent AMD. MATERIALS AND METHODS: We conducted a nested case-control study using the Korean National Health Insurance Service database. Using risk-set sampling of age, sex, cohort entry date, and follow-up duration, we identified incident patients with AMD and 10 matching controls in cohorts with diabetes mellitus or cardiovascular diseases. Exposure was assessed within one year before the index date using patient prescription records. We conducted conditional logistic regression to estimate the odds ratios (ORs) and 95% confidence intervals (CIs) to evaluate the association between cardiovascular medications and AMD. RESULTS: Our study included 2330 cases and 23278 controls from a cohort of 231274 patients. The ORs (95% CI) for AMD occurrence in users prescribed with statins, metformin, ACE inhibitors, and ARBs were 1.12 (0.94–1.32), 1.15 (0.91–1.45), 0.90 (0.61–1.34), and 1.21 (1.05–1.39), respectively. A duration-response was not observed. CONCLUSION: Statins, metformin, ACE inhibitors, and ARBs did not inhibit AMD in elderly patients. The absence of a duration-response supports the lack of a causal relationship.

Observation on the effect of metronidazole dry powder on the prevention of alveolalgia after extraction of mandibular impacted teeth / 中国生化药物杂志

Objective To investigate the effect of metronidazole powder on the prevention of alveolalgia after extraction of mandibular impacted teeth. Methods two groups of mandibular teeth underwent surgical removal treatment, study group for teeth after Metronidazole Tablets will grind it into powder and dexamethasone sodium phosphate filling extraction wound and sutured; the control group were only given mandibular teeth tight control suture. Two groups of patients with postoperative mandibular impacted teeth were treated with oral amoxicillin for 1 weeks and effective follow-up, record the occurrence of dry socket, the data input SPSS software to give the corresponding analysis and conclusions. Results The incidence of dry socket after tooth extraction was 3.45％ in the study group and 20.69％ in the control group. The difference between the 2 groups was statistically significant(P<0.05). Conclusion Application of metronidazole powder of mandibular impacted tooth extraction, can significantly reduce the incidence of alveolalgia, it is worthy of clinical application.

Prevention effect of specimen skin transplantation for skin flap necrosis after breast cancer surgery / 中国现代普通外科进展

Objective:To study the prevention effect of specimen skin transplantation for skin flap necrosis after breast cancer surgery.Methods:A retrospective analysis of 116 patients with breast cancer treated by surgery from January 2015 to November 2015 was reviewed,with skin graft in 58 cases,recorded as the observation group;skin graft was not accepted in 58 cases,as the control group,compared skin flap necrosis rate between the two groups after the operation,the operation index (operation time,hospitalization time,follow-up time and two times the proportion of skin graft),and before and after the operation of the IL-1 β,IL-6 and TNF-α levels.Resultes:The observation group of full-thickness skin flap necrosis of skin flap necrosis ratio was 0,the total incidence rate was 8.62％,which were significantly lower than the control group of 8.62％ and 25.86％,the differences were statistically significant(P＜0.05).Hospitalization time of the observation group and two skin graft ratio were significantly less than the control group,the differences were statistically significant (P＜0.05).The two groups after the IL-1 β,IL-6 and TNF-α respectively was significantly lower than that before treatment,the difference was statistically significant (P＜0.05).The patients in the observation group of IL-1 β,IL-6 and TNF-α respectively was significantly lower than the control group,the difference was statistically significant (P＜0.05).Conclusions:For large masses of breast cancer patients,under the premise of clear skin edge there is no residual cancer,through specimen skin transplantation can better prevention of skin flap necrosis after,at the same time,can promote the rehabilitation of patients,the effect is good,it is worth to give recommendation.

Study on the Preventive Effect and Mechanism of Wei Medicine Kunlun Snow Chrysanthemum Polysaccha-rides on Carbon Tetrachloride-induced Acute Liver Injury in Mice / 中国药房

OBJECTIVE:To study the preventive effect and mechanism of Wei medicine Kunlun snow chrysanthemum polysac-charides(KSCP)on carbon tetrachloride(CCl4)-induced acute liver injury in mice. METHODS:96 mice were randomly divided in-to normal group(normal saline),model group(normal saline),Biphenyl diester dropping pill(positive control,1.5 mg/10 g)and KSCP low-dose,medium-dose,high-dose groups (0.3,0.6,1.2 mg/10 g),16 in each group,with intragastric administration, once a day,for 10 d. Except for normal group,mice in other groups were intraperitoneally injected 1%CCl4 rapeseed oil solution to induce liver injury. After 24 h of modeling,the levels of alanine aminotransferase (ALT),aspartate aminotransferase (AST),tu-mor necrosis factor α(TNF-α),interleukin 1(IL-1)in serum,levels of malondialdehyde(MDA),superoxide dismutase(SOD) in liver tissue were detected;the liver,spleen indexes were calculated. Pathological changes of liver tissue were observed,patho-logical scoring was conducted. The protein expressions of apoptosis-related genes Caspase-3,Bcl-2,Bax in liver tissue were detect-ed. RESULTS:Compared with normal group,levels of ALT,AST,TNF-α,IL-1 in serum,MDA level in liver tissue and liver, spleen indexes in model group were obviously increased(P<0.01);SOD level in liver tissue was decreased(P<0.01);pathologi-cal changes in hepatocellular necrosis,degeneration and inflammatory cell infiltration,and pathological score in model group was obviously increased(P<0.01);caspase-3 protein expression and Bcl-2/Bax ratio in liver tissue in model group were obviously de-creased (P<0.01). Compared with model group,above-mentioned indexes in each administration group were obviously improved (P<0.05 or P<0.01). CONCLUSIONS:KSCP has certain preventive effect on CCl4-induced acute liver injury in mice,and its mechanism may be associated with anti-oxidation,anti-inflammation and regulation of apoptosis-related protein expressions.

Progress in preventive effects of cordyceps sinensis on ischemic brain / 中国药理学与毒理学杂志

Cerebral ischemia is due to cerebral blood supply disorders caused by ischemia and hypoxia resulting in localized ischemic brain necrosis or brain softening of the disease, leading to irreversible brain damage and subsequent loss of neuronal function is a serious threat to human health One of several diseases. For patients with cerebral ischemia, often the lack of effective and extensive treatment. In addition, cerebral ischemia with morbidity, morbidity and mortality are characterized by high, so by the medical profession at home and abroad attention. As a traditional Chinese medicine, cordyceps sinensis (CS) is a complex of ergot fungus, which is parasitized on the larvae of the bat-moth family. The compound is composed of cordycepin, cordyceps polysaccharide, cordyceps sinensis peptides, ergosterol, mannitol, fatty acids and trace elements such as a variety of ingredients, with a wide range of pharmacological effects. Over the years, domestic and foreign scholars on the pharmacological effects of cordyceps sinensis were more comprehensive study of its prevention and treatment of cerebral ischemia is also deepening, found that cordyceps sinensis on cerebral ischemia with anti-inflammatory, reduce oxidative damage and neuronal ischemia damage, reduce neuronal apoptosis, improve memory cognition, reduce thrombosis, inhibit NO production, enhance mitochondrial energy supply, scavenging free radicals and other prevention and treatment. But no relevant review. In this paper, the domestic and foreign literatures on the prevention and treatment of cerebral ischemia by cordyceps sinensis were summarized, analyzed and summarized in order to provide useful information for the research and further development of cordyceps sinensis.

Preventive Effect of Qingnao Tablet on Cerebral Ischemia-reperfusion Injury in Rats / 中国药房

OBJECTIVE:To study the preventive effect of Qingnao tablet on cerebral ischemia-reperfusion injury in rats. METHODS:Rats were randomly divided into sham operation group,model group,Naoluotong capsule group (positive control, 0.05 g/kg),Qingnao tablet high-dose,medium-dose,low-dose groups(1.52,0.76,0.38 g/kg),10 in each group. Rats in all ad-ministration groups were intragastrically given relevant medicines,rats in sham operation group and model group were intragastrical-ly given equal volume of sodium carboxymethylcellulose solution,once a day,for 5 d. After 1 h of last administration,all rats were induced for cerebral ischemia-reperfusion injury model by suture-occluded method except for sham operation group. After 22 h of ischemia-reperfusion,neurological function deficit scoring was conducted;the pathological changes of the hippocampus were ob-served;superoxide dismutase (SOD),adenosine triphosphate (ATP),lactate dehydrogenase (LDH),tumor necrosis factor α(TNF-α)levels in brain tissue were measured. RESULTS:Compared with sham operation group,rats in model group appeared dif-ferent degrees of neurological deficits(score declined),sparse neurons,irregularly arranged in hippocampus as well as other patho-logical changes;ATP,SOD levels in brain tissue were decreased(P<0.01),LDH,TNF-α levels were increased(P<0.01). Com-pared with model group,neurological function deficit scores in Qingnao tablet doses groups were increased(P<0.05),neurologi-cal deficits were improved. Except for sham operation group,brain tissue indexes in other administration groups were significantly improved(P<0.05 or P<0.01). CONCLUSIONS:Qingnao tablet can increase ATP and SOD levels in brain tissue homogenate of model rats with cerebral ischemia-reperfusion,decrease LDH and TNF-α levels,and obviously improve rats'cerebral ischemia-re-perfusion injury.

Effect of low molecular weight heparin on prevention of central venous catheter related deep venous thrombosis in patients with lower limb fracture / 中国生化药物杂志

Objective To investigate the effect of low molecular weight heparin (LMWH) on the prevention of deep venous thrombosis in patients with lower limb fracture.Methods 213 cases of peripherally inserted central venous catheter after deep venous thrombosis of lower extremity fractures from February 2014 to October 2016 in our hospital orthopedic surgery were retrospectively analyzed,according to whether patients with low molecular weight heparin were divided into two groups,which did not use low molecular weight heparin in patients with 104 cases as control group,using the low molecular weight heparin in 109 patients as study group,with seven days of treatment as the observation period, the blood rheology indexes of the two groups of patients and the incidence of deep vein thrombosis were analyzed.Results After treatment, the blood viscosity, fibrinogen, and plasma D-dimer levels of the whole blood decreased in both groups, and the levels of plasma D-dimer were significantly lower in the study group than in the control group (P<0.05);the plasma viscosity of the study group was significantly lower than that of the control group (P <0.05).After treatment,the recurrence rate of deep venous thrombosis in the study group was significantly lower than that in the control group ( P<0.05 ); The effective rate of treatment group was 96.33%was significantly higher than the control group 76.92%(P<0.05);study group incidence of adverse reactions 1.83%was significantly lower than the control group 7.69%( P <0.05 ) .Conclusion Low molecular weight heparin can effectively improve the indexes of Hemorheology in patients with lower limb fracture after central venous catheter puncture, reduce the risk of deep vein thrombosis, and have a clear preventive effect.

Clinical observation of hepatoprotective agents for prevention of liver injury during initial chemotherapy of patients with acute myeloid leukemia / 中国药学杂志

OBJECTIVE: To investigate the preventive effect of hepatoprotective agents against liver injury induced by initial chemotherapy in patients with acute myeloid leukemia (AML). METHODS: A total of 128 patients with newly diagnosed AML in the department of hematology of one tertiary hospital who received IA regimen were enrolled into this study during the period of January 2012 to December 2015. Using a retrospective study design, differences were assessed between the group treated with hepatoprotective agents (experimental group; n = 99) and that withou hepatoprotective agents (control group; n = 29). The experimental group was further divided into four groups, ie, glutathione group, magnesium isoglycyrrhizinate group, glutathione combined with magnesium isoglycyrrhizinate group, and the other group. The patients in the experimental group were treated with hepatoprotective agents at the first time of inducing chemotherapy while the patients in the control group received inducing chemotherapy only. The biochemical indexes for liver function of all the patients were recorded. RESULTS: There was no significant difference in the incidence of liver injury between the experimental group and control group (P > 0.05), and the preventive effects in the three groups were similar (P > 0.05). Cox regression analysis of the related factors of the occurrence of liver injury showed that there was no significant difference (P > 0.05). CONCLUSION: Prophylactic use of hepatoprotective agents does not reduce the incidence of liver injury among treatment-naive patients with AML who have received IA regimen.

Effect of low-dose cefuroxime combined with dexamethasone on postoperative urinary tract infection and quality of life in cervical cancer patients / 中国生化药物杂志

Objective To investigate the effect of low-dose of cefuroxime combined with dexamethasone on postoperative urinary tract infection and quality of life in cervical cancer.Methods 90 cases of cervical cancer patients from July 2015 to July 2016 in the first affiliated hospital of wenzhou medical university were selected and divided into two groups,44 patients in control group received cefuroxime sodium 1.5 g and metronidazole 0.5 g biw in five days,furacilin 250 mL bladder irrigation biw after five days,and fourteenth days out of indwelling catheter.46 cases in the experiment group received more with cefuroxime 125 mg and dexamethasone 0.75 mg oral,and two groups were treated for 14 days.Results After treatment,the incidence rate of urinary tract infection rate,the first urination time>three hours and residual urine ≥100 mL in the experiment group were lower than the control group (P<0.05);the total effective rate of the experiment group was significantly higher than the control group (P <0.05);the scores of physical function,physical life, mental health and social adaptation in the experiment group were significantly higher than the control group ( P <0.05 ) . Conclusion Low dose cefuroxime combined with dexamethasone have better prevention effect on urinary tract infection after cervical cancer operation , can significantly improve the quality of life of patients and treatment efficiency.

Efeito de óleos essenciais de plantas medicinais sobre a antracnose do sorgo / Effect of essential oils of medicinal plants on the anthracnose of sorghum

Objetivou-se avaliar a fungitoxicidade in vitro dos óleos essenciais de capim-limão, citronela, erva-cidreira e hortelã-pimenta sobre o fungo Colletotrichum graminicola (Ensaio I) e o efeito in vivo desses óleos e do óleo comercial de nim sobre a antracnose do sorgo (Ensaio II). No Ensaio I avaliou-se, em cinco épocas (dois, quatro, seis, oito e dez dias de incubação), o crescimento micelial do C. graminicola sob cinco concentrações dos óleos essenciais (C1= 0,25 µL mL-1; C2= 0,50 µL mL-1; C3= 0,75 µL mL-1; C4= 1,0 µL mL-1; C5= 1,25 µL mL-1). No Ensaio II, para avaliar o efeito preventivo, utilizou-se cinco tipos de óleos (capim-limão, citronela, erva-cidreira, hortelã-pimenta e nim) em quatro concentrações (2,5, 5,0, 7,5 e 10,0 µL mL-1). Para o efeito curativo, foram utilizados os mesmos óleos do efeito preventivo em duas concentrações (2,5 e 5,0 µL mL-1). Os óleos essenciais de C. nardus e C. citratus foram os mais eficientes na redução do crescimento micelial de C. graminicola (Ensaio I). No Ensaio II, no efeito preventivo, tanto os óleos essenciais quanto as concentrações reduziram significativamente a severidade da doença, destacando-se os óleos de capim-limão, erva-cidreira e nim. No efeito curativo, os tratamentos reduziram a severidade, porém não apresentaram diferença significativa entre si.

The objective was to evaluate the in vitro fungitoxicity of essential oils of lemongrass, citronella, lemongrass and peppermint on the fungus Colletotrichum graminicola (Test I) and in vivo effects of these oils and neem oil trade on the anthracnose sorghum (Test II). In Test I was evaluated in five seasons (two, four, six, eight and ten days of incubation), the mycelial growth of C. graminicola under five concentrations of essential oils (C1= 0,25 µL mL-1; C2= 0,50 µL mL-1; C3= 0,75 µL mL-1; C4= 1,0 µL mL-1; C5= 1,25 µL mL-1). In Test II, to assess the preventive effect, we used five types of oils (lemongrass, citronella, lemon balm, peppermint and neem) at four concentrations (2,5, 5,0, 7,5 e 10,0 µL mL-1). For curative effect, we used the same oils of preventive effect in two concentrations (2,5 e 5,0 µL mL-1). The essential oils of C. nardus and C. citratus were the most effective in reducing mycelial growth of C. graminicola (Test I). In Test II, the preventive effect, essential oils and concentrations significantly reduced the severity of the disease, especially oils of lemongrass, lemon balm and neem. In the curative effect, treatments reduced the severity, but no significant differences between them.

Monoamine Oxidase Inhibitors Attenuate Cytotoxicity of 1-Methyl-4-phenylpyridinium by Suppressing Mitochondrial Permeability Transition

Mitochondrial permeability transition has been shown to be involved in neuronal cell death. Mitochondrial monoamine oxidase (MAO)-B is considered to play a part in the progress of nigrostriatal cell death. The present study examined the effect of MAO inhibitors against the toxicity of 1-methyl-4-phenylpyridinium (MPP+) in relation to the mitochondrial permeability transition. Chlorgyline (a selective inhibitor of MAO-A), deprenyl (a selective inhibitor of MAO-B) and tranylcypromine (non-selective inhibitor of MAO) all prevented cell viability loss, cytochrome c release, caspase-3 activation, formation of reactive oxygen species and depletion of GSH in differentiated PC12 cells treated with 500 micrometer MPP+. The MAO inhibitors at 10 micrometer revealed a maximal inhibitory effect and beyond this concentration the inhibitory effect declined. On the basis of concentration, the inhibitory potency was tranylcypromine, deprenyl and chlorgyline order. The results suggest that chlorgyline, deprenyl and tranylcypromine attenuate the toxicity of MPP+ against PC12 cells by suppressing the mitochondrial permeability transition that seems to be mediated by oxidative stress.

Effects of Ershiwuwei Zhenzhu Wan on Cerebral Capillary Permeability and Cerebral Water Content in the Experimental Rats with Cerebral Ischemia / 中国药房

OBJECTIVE:To study the effects of Ershiwuwei zhenzhu wan(ZZW)on cerebral edema induced by cerebral ischemia of rats.METHODS:The incomplete cerebral ischemia model was induced by occlusion of arteria carotis in rats,the effects of ZZW on cerebral capillary permeability,cerebral index and cerebral water content were observed by azo-blue method and weighting method.RESULTS:Preventive medication of ZZW could significantly decrease cerebral capillary per-meability,cerebral index and cerebral water content and palliate cerebral edema(P

The Preventive and Therapeutic Effect of Keshu on Acute Alcoholism Mice / 中国药房

OBJECTIVE:To observe the preventive and therapeutic effect of Keshu on acute alcoholism mice.METHODS:Acute alcoholism mice model was established,and randomly divided mice into model group and high,middle,low dosage of Keshu group;the tolerance time,lasting time and the concentration of alcohol in blood were compared among each group.RE-SULTS:Compared with the model group,the tolerance time has been prolonged,the lasting time has been shortened and the blood concentration of alcohol has been lowered in Keshu group.CONCLUSION:Keshu has an obvious preventive and thera-peutic effect on acute alcoholism,the preventive effect of which outweighs the therapeutic effect.

Mechanisms of Effects of Indol-2,3-dione on Quail Experimental Atherosclerosis / 中国药房

OBJECTIVE:To study the possible mechanisms of the effects of indol-2,3-dione (MW147) on experimental atherosclerosis (AS). METHODS: A total of 120 male quails were randomly divided into six groups: normal control group, model group, lovastatin (79.5 mg?kg-1) positive control group, and MW147 (20, 60, 120 mg?kg-1) groups. The normal control group was fed on normal diet, while the other 5 groups were fed on high lipid diet and treated ig with corresponding drugs for eight weeks. Then the lipid levels including TC, TG, L-DLC and H-DLC in serum and tissues, and the total superoxidedismutase (T-SOD), glutathione peroxidase (GSH-Px), total antioxidant capacity (T-AOC) and malondialdehyde (MDA) were determined. Meanwhile the tissues of aorta and liver were observed under light microscope. RESULTS: In MW147-treated groups compared with model group, the levels of TC, TG, LDL-C and MDA were decreased while the levels of HDL-C, T-SOD, GSH-Px and T-AOC in serum were increased (P

Preventive Effect of Total Saponins of Panax Notoginseng on Experimental Atherosclerosis in Rabbits / 中国药房

OBJECTIVE: To investigate the effect of PNS on experimental atherosclerosis in rabbits, including the serum levels of TG, TC, LDL-C, level of MDA, activity of SOD and plaque area. METHODS: White Japanese rabbits were divided into normal control group, AS model group, low dose PNS group and high dose PNS group. Administration was for 12 consecutive weeks. The serum levels of TG, TC, LDL-C, MDA and activity of SOD were determined before experiment and at the end of the 12th week, respectively. RESULTS: The serum levels of TG, TC and LDL-C in AS model group were significantly higher than that in control group ( P