复方雷公藤颗粒对再障小鼠骨髓T细胞亚群的影响

目的:观察复方雷公藤颗粒对再生障碍性贫血(简称再障)小鼠的疗效及对骨髓CD4+,CD8+,CD4+/CD8+T淋巴细胞表达的影响.方法:建立再障小鼠模型,分为5组,正常组及模型组小鼠(给予同体积的生理盐水ig),复方雷公藤低、高剂量组(分别为生药10.63,13.29 g·kg-1,ig)、十一酸睾酮(22 mg·kg-1,ig),连续给药35 d,取骨髓单个核细胞培养24 h后,流式细胞术检测CD4+,CD8+,CD4 +/CD8+T淋巴细胞的表达水平.结果:模型组CD4+,CD8+,CD4 +/CD8+各指标均较正常组下降,其中CD4+,CD4 +/CD8+T淋巴细胞明显低于正常组(P＜0.05);十一酸睾酮组与模型组相比,CD4+,CD8+均有所下降,但CD4 +/CD8+T细胞较之上升,但统计学均无明显差异,复方雷公藤颗粒低、高剂量组与模型组相比,CD4+,CD8+,CD4+/CD8+均升高,其中CD4+,CD4+/CD8+升高有统计学意义(P＜0.05),与十一酸睾酮组相比差异有统计学意义(P＜0.05).结论:复方雷公藤颗粒能调节骨髓T细胞的异常状态,恢复T细胞及其亚群之间的平衡,促进骨髓造血功能的恢复.     

云药七龙天对缺氧大鼠动脉血气及肺组织中血管内皮生长因子蛋白表达的影响

目的观察七龙天对缺氧大鼠动脉血气及肺组织中血管内皮生长因子（VEGF）蛋白表达的影响,为探寻云南民族医药防治慢性缺氧性肺病的有效手段提供实验依据。方法将SD大鼠40只随机分为5组,即正常对照组、模型组及七龙天低、中、高剂量组,每组8只,除正常对照组以外均以常压低氧法制备大鼠缺氧模型。给药组分别于造模第1日始灌胃相应剂量的七龙天,连续用药3周。腹主动脉采血行血气分析,采用蛋白免疫印迹法检测肺组织中VEGF的蛋白表达。结果与正常对照组比较,模型对照组大鼠血气分析比较差异无统计学意义（P〉0.05）,VEGF蛋白表达水平明显升高（P〈0.05）;与模型对照组比较,七龙天中、高剂量组大鼠VEGF的蛋白表达水平明显降低,以高剂量组最为显著（P〈0.05）。结论七龙天可显著抑制缺氧诱导血管新生形成。     

复方玄驹胶囊联合甲氨蝶呤、来氟米特治疗类风湿关节炎40例

目的：观察复方玄驹胶囊联合甲氨蝶呤、来氟米特治疗类风湿关节炎的临床疗效。方法：将78例类风湿关节炎患者随机分为2组：治疗组40例,采用复方玄驹胶囊联合甲氨蝶呤、来氟米特治疗;对照组38例采用甲氨蝶呤、来氟米特治疗。观察治疗前后症状改善程度及实验室相关指标变化。结果：治疗组疗效优于对照组（P〈0.05）,且治疗后治疗组在改善晨僵时间、关节肿胀数、关节压痛数、C反应蛋白（CRP）方面与对照组相比有统计学差异（P〈0.05）,类风湿因子（RF）2组比较无统计学差异（P〉0.05）。结论：复方玄驹胶囊联合甲氨蝶呤、来氟米特治疗类风湿关节炎,可明显改善症状,且使用安全,不良反应少。     

Compound allergy

This review defines the term "compound allergy" in the context of new findings, and discusses evidence that allergenic reaction products have been identified. Material was gathered by searching Index Medicus and the Science Citation Index, and reviewing several standard texts. Issues regarding the validity of patch lest results are addressed and we introduce the term "pseudcompound allergy" to cover cases of false-negative patch tests. We present new theories regarding the mechanisms by which new allergens arc formed and a means of classification.     

基于特征的深度学习预测化合物-蛋白质相互作用的研究进展

药物研发过程中,化合物-蛋白质相互作用（compound-protein interaction,CPI）预测是发现苗头化合物、药物重定位等研究的关键技术手段。近年来,深度学习被广泛应用于CPI研究,加速了药物发现中CPI预测的发展。本文重点讨论基于特征的 CPI 预测模型,首先,介绍了CPI预测中常见的数据库、化合物和蛋白质的典型特征表示方法。根据建模中的关键问题,从多模态和注意力机制两个方面,对基于特征的CPI预测模型展开论述。在此基础上,选取其中12个模型,在3个经典数据集上评估了模型在分类任务和回归任务中的性能。本文总结当前该领域面临的挑战,对未来的发展方向进行展望,为CPI预测方法进一步研究提供思路。     

显脉香茶菜化学成分的研究

在继续对显脉香茶菜Ｒａｂｄｏｓｉａ ｎｅｒｖｏｓａ （Ｈｅｍｓｌ）Ｃ．Ｙ．Ｗｕ ｅｔ Ｈ．Ｗ．Ｌｉ茎叶有效成分的研究中,又分得一种新的对映－甲壳杉烷型二萜,经理化常数和波谱分析,确定其结构为１α、１５β－二羟基－６β－乙氧基－６,７－Ｂ－断裂－对映－贝壳杉－１６－烯－６,２０－环氧－７,２０－内酯,命名为显脉香茶菜丙素（ｒａｂｄｏｎｅｒｖｏｓｉｎＣ）。     

建立中药复方用半仿生提取研究的技术平台

半仿生提取法（SBE法）是针对中药药效物质提取中存在的 “唯成分论”和“通则论”,采用“灰思维方式”将整体药物研究法与分子药物研究法相结合,从生物药剂学的角度为经消化道给药的中药制剂创立的一种提取新技术。经对多种中药及其复方的研究,结果皆提示:半仿生提取法有可能替代（WE法水提取法）;（SBAE法半仿生提取醇沉淀法）有可能替代（WAE法水提醇沉淀法）。本文以黄连解毒汤和慈航丹为例,对建立中药复方半仿生提取研究的技术平台作了介绍。     

中药复方治疗绝经后骨质疏松症的临床研究概况

绝经后骨质疏松症为骨吸收大于骨形成的高转化型代谢性骨病,其并发症严重影响患者的生活水平及质量。中医认为本病与肝、脾、肾脏腑亏虚及血瘀等关系密切。近年来临床研究发现,中药复方治疗绝经后骨质疏松症效果明显,能够有效地改善患者的骨代谢水平,增加患者的骨密度,同时改善患者的临床症状。笔者就中药复方治疗绝经后骨质疏松的作用机制及临床疗效进行综述,旨在为中药复方治疗绝经后骨质疏松症提供数据支持及指导,为今后中药复方开发及靶向治疗绝经后骨质疏松症提供思路。以期指导临床辩证用方,提高对绝经后骨质疏松症的防治率。     

Dermoscopy is useful for the recognition of benign-malignant compound tumours

The association of two different neoplasms in the same lesion is uncommon and has been reported as collision or compound tumours in the medical literature. In cases where a malignant neoplasm exists in association with a benign lesion it is important to make an accurate diagnosis in order to treat the lesions correctly. Dermoscopy is an in vivo, noninvasive technique that improves the clinical accuracy in diagnosing melanoma and other pigmented skin lesions. We describe the dermoscopic characteristics of various collision or compound tumours that were composed of benign and malignant neoplasms: two cases of seborrhoeic keratosis associated with basal cell carcinoma, two cases of melanocytic naevus and basal cell carcinoma and one case of dermatofibroma associated with basal cell carcinoma. We conclude that dermoscopy is a useful tool for improving the recognition of these kinds of tumours.     

Netherton syndrome in two Japanese siblings with a novel mutation in the SPINK5 gene: immunohistochemical studies of LEKTI and other epidermal molecules

BACKGROUND: Netherton syndrome (NS) is a severe autosomal recessive disorder characterized by ichthyosiform erythroderma, bamboo hair and atopy. The disease is caused by mutations in the SPINK5 gene, which encodes a putative serine protease inhibitor, LEKTI (lymphoepithelial Kazal-type-related inhibitor). Previous studies have clearly shown a crucial role for LEKTI in skin barrier formation. OBJECTIVES: To identify pathogenic mutations in two Japanese siblings with NS, and further to investigate the consequences of the mutations at the protein level. METHODS: To screen for mutations in the SPINK5 gene, all of its exons and splice junctions were amplified by polymerase chain reaction and directly sequenced. In addition, immunohistochemical staining of LEKTI, desmoglein (Dsg) 1 and elafin was performed with their specific antibodies. RESULTS: Mutation analysis resulted in the identification of compound heterozygous mutations, Q713X and R790X, in the SPINK5 gene of both patients. The former one is a novel mutation. Immunohistochemical studies in one patient demonstrated a complete absence of LEKTI and a strong expression of elafin in the patient's skin. Dsg1 was normally expressed in our patient. CONCLUSIONS: In this report, we describe compound heterozygous mutations in the SPINK5 gene in two Japanese siblings with NS. The result of immunohistochemistry shows LEKTI deficiency and upregulation of elafin in the skin of one patient. Furthermore, our data indicate that degradation of Dsg1 does not always occur in NS.