枳鳖胶囊抗大鼠肝纤维化形态学及肝组织Ⅲ型胶原mRNA表达的实验研究

目的:观察枳鳖胶囊抗肝纤维化形态学和Ⅲ型胶原mRNA表达的变化。方法:选择66只健康清洁级SD大鼠,雌雄各半,随机分为:正常对照组,模型组,秋水仙碱组,枳鳖胶囊大、中、小剂量组。以40%四氯化碳花生油皮下注射结合高脂饲料、酒水饮料复合因素诱导大鼠肝纤维化模型。造模结束后,除正常组不予处理外,其他组分别以蒸馏水,秋水仙碱混悬液,高、中、低浓度枳鳖胶囊溶液灌胃,疗程36d。疗程结束后,观察大鼠新鲜肝脏的表面情况、色泽、质地等大体形态,测定肝组织Ⅲ型胶原mRNA的表达,光镜观察肝组织HE染色和网状纤维染色的病理形态学改变。结果:模型组大鼠肝细胞损害、肝脏脂肪变性和胶原纤维增生的程度最显著,Ⅲ型胶原mRNA的表达最强。枳鳖胶囊组上述改变明显减轻,且可抑制Ⅲ型胶原mRNA的表达,疗效优于秋水仙碱组。结论:枳鳖胶囊可较好地保护肝细胞,并能阻止肝纤维化进程甚或逆转肝纤维化病理改变,抑制胶原基因表达,抑制胶原基因表达可能是其抗肝纤维化的作用机理之一。     

The basis for treatment in multiple sclerosis

Contemporary licensed treatments for multiple sclerosis fail to provide a solution for the disease because their effects are limited to a modest reduction in the frequency of new episodes. They do not reduce disability or materially influence the progressive phase of the disease. A contemporary strategy for management requires a more detailed analysis of the separate contributions to the clinical features and overall course made by inflammation, axonal injury, compensatory mechanisms, and remyelination. From this formulation emerges the need either for early and fully effective suppression of the inflammatory response, limiting the damage to all components of the axon-glial unit; or the development of strategies for axonal and myelin repair that solve the issues of controlled differentiation, delivery and timing of these cell and growth factor-based interventions.     

Ecologic Study of Lung Cancer Risk Factors in the U.S. and Japan, with Special Reference to Smoking and Diet

Lung cancer mortality rates among United States and Japanese males were compared and related to smoking and dietary data. Mortality rates increased from 1950 to 1985 in both countries, but the absolute values are consistently lower in Japan (38.2 deaths/100,000 in 1985) than in the U.S. (72.2/100,000). The proportion of smokers is higher in Japan than in the U.S. since 1955. Japanese males start smoking considerably later than U.S. males, but smoke a higher quantity of cigarettes per day. Available information on inhalation practices and yield and type of cigarettes smoked showed no differences among the two countries large enough to account for the differences in mortality rates. Further data in this regard should he obtained. Dietary data show that fat consumption (as percentage of calories) is consistently higher in the U.S. than in Japan from 1950 (40% vs. 7.9%) through 1985 (43.5% vs. 24.5%). A linear relationship is observed between lung cancer mortality and fat intake. Our data support the hypothesis that dietary habits may modulate the carcinogenic effects of tobacco smoking.     

Chronic peritoneal dialysis in paediatrics: Experience of a national registry

The results of the first 3 year' collaboration of the Italian Registry of Paediatric Chronic Peritoneal Dialysis (CPD) (1986–1988) are presented. This Registry acquired data on the majority of the paediatric patients treated with CPD in Italy, thus providing a national picture in a field where few nationwide surveys are available. Patients of less than 15 years of age at the start of dialysis were enrolled and clinical data collected until the age of 19 years. The number of nephrological paediatric centres participating in the Registry increased from 7 in 1986 to 11 in 1988. The total number of patients on CPD was 70 and the percentage of dialysed children treated with CPD ranged from 40.2% to 43.6%. Data on 89 peritoneal catheters were collected: during 1417 dialysis-months 70 catheter-related complications were observed (1:20.8 dialysis-months); actuarial catheter survival was 92.7% at 6 months, 84.8% at 1 year and 68.8% at 2 years. The incidence of peritonitis changed from 1 episode every 10.9 patient-months in 1986 to 1 every 19.8 in 1988. Abdominal hernias were the other main clinical complication observed. The survival of patients was 92.5% at 3 years, while the technique survival at the same time was 84%.     

Comparison of 2 chlorhexidine mouthwashes on plaque regrowth in vivo and dietary staining in vitro

Abstract Until recently, the few available chlorhexidine mouthrinse products have been 0.2% formulations. However, concentrations of 0.12% chlorhexidine appear as effective as 0.2%, if the volume of the rinse is increased to 15 ml. Since the mere incorporation of chlorhexidine in a formulation does not guarentee availability of the antiseptic, it would seem reasonable to evaluate or compare all products. This is particularly the case when other ingredients, such as fluoride are added. The 1st study compared the effect of a 0.12% chlorhexidine rinse with a 0.12% chlorhexidine/0.022% sodium fluoride rinse for effects on plaque re-growth. The study was a 7-day, blind, randomised, 2-cell cross-over design with a baseline control run in period, in which 18 subjects participated. Both chlorhexidine products significantly reduced plaque compared to control but the chlorhexidine fluoride rinse was less effective than the chlorhexidine only rinse. The 2nd study assessed the propensity of the chlorhexidine rinses to induce dietary staining in vitro. For the chlorhexidine fluoride rinse, this was less than the other 0.12% rinse and a commonly used 0.2% product. The data in vivo and in vitro suggest reduced chlorhexidine availability from the chlorhexidine fluoride product which appears to cause some loss of efficacy.     

静脉内毒瘾者HIV感染的转归及影响因素

对ＨＣＶ血清标记阳性的静脉内毒瘤者进行半年和１５个月随访，并调查影响转归的部分因素。结果显示，静脉内毒瘾者抗－ＨＣＶ自然转阴率分别为１１．０／和３３．３％。单因素和多因素分析均提示转阴率以婚姻状况良好的已婚者较离婚者高、人均年收入高者较低者高，说明婚姻状况和人们的经济水平对毒瘾者抗－ＨＣＶ转阴有一定的影响。     

江西麦饭石对某些实验动物生理功能影响

用江西麦饭石水浸液喂养小鼠116只,自来水喂养39只,食物条件完全相同,一个月后,发现饮用江西麦饭石水浸液的小鼠体重增长和抗疲劳及耐缺氧能力均优于对照组。用麦饭石任氏液灌注离体蛙心后,心肌收缩力有明显增强。     

Clinical course and outcome of cycloid psychotic disorder: a three-year prospective study

The course and outcome of cycloid psychotic disorder was explored by means of a prospective three-year follow-up of a sample of patients fulfilling the diagnostic criteria for the disorder provided by Perris & Brockington, compared to patients with a diagnosis of affective or schizoaffective disorder. The most striking difference between cycloids and affectives was the lack of manic episodes during the follow-up period in the former group. Moreover, the mean age at onset was lower in cycloids. No difference between these patient groups was observed with regard to outcome. Compared to schizoaffectives, cycloids showed several differences in the clinical picture during the index episode, and their symptomatological pattern was more consistent from one episode to another during the follow-up. Moreover, the outcome of cycloids was significantly more favourable than that of schizodepres-sives.     

No evidence for association between the −112G/A polymorphism of UGRP1 and childhood atopic asthma

BACKGROUND: Susceptibility to asthma is known to involve genetic factors. Genome-wide screens have indicated that the chromosome 5q31-q34 region is linked to and/or associated with asthma. A new gene, named UGRP1 and reported by Niimi et al., encodes uteroglobin-related protein and is expressed in the lung and trachea. Niimi et al. showed the -112G/A polymorphism of the UGRP1 gene to be associated with asthma in a case-control study. OBJECTIVE: The objective of the present study was to replicate this association and confirm the possible role of the UGRP1-112G/A polymorphism in the aetiology of childhood asthma in a Japanese population. METHODS AND RESULTS: We conducted a transmission disequilibrium test (TDT) in 131 families identified through paediatric patients being treated for asthma. A case-control study was also carried out by comparing the probands and 137 unrelated non-atopic non-asthmatic Japanese children and 211 unrelated healthy Japanese adults. The -112G/A polymorphism was genotyped by the PCR-RFLP method. The TDT revealed that the -112A allele was not preferentially transmitted to asthma-affected children (P=0.85). Neither the presence of at least one A allele in an individual's genotype (sum of the G/A and A/A genotypes) nor the -112A allele was more prevalent among the asthma subjects than among the control subjects. CONCLUSION: Our findings indicate that the UGRP1-112G/A polymorphism does not play a substantial role in genetic predisposition to childhood asthma in this Japanese population.