占里侗族传统医药文化传承及保护浅析

占里侗族传统医药作为祖国宝贵的传统医药文化的重要组成部分,足占里侗族同胞智慧的结晶,长期以来在占里人民战胜疾病保障健康方面做出了卓越贡献,尤其在占里创造“中国计划生育第一村”的奇迹方面,占里医药作为控制计划生育的技术手段起了不可磨灭的贡献。但是研究表明,在占里医药自身的局限和现代经济、科技、生活方式等的综合影响下,占里统医药面临失传的危险。占里传统医药急需保护、研究和改进。为此提出了相关政策建议。     

Didymin attenuates doxorubicin-induced cardiotoxicity by inhibiting oxidative stress

Objective: This study was designed to investigate the protective effects of didymin (Did) on doxorubicin (DOX)-induced cardiotoxicity. Methods: After pretreatment with Did (2, 4, 8 mg/kg intraperitoneal i.p.) for 7 d, the male C57 mice were injected with single dose of DOX (20 mg/kg i.p.). The cardioprotective effect of Did was observed on the 7th day after DOX treatment. Results: DOX delayed body growth and caused cardiac tissue injury, oxidative stress, and mitochondrial dysfunction. Similar experiments in H9C2 cardiomyocytes showed that DOX reduced cell viability, increased generation of reactive oxygen species (ROS) and fragmentation of DNA, decreased mitochondrial membrane potential, and induced cardiomyocyte apoptosis. However, all of these adverse effects were suppressed by Did pretreatment. Did increased protein expression of glutamate-L-cysteine ligase catalytic subunit (GCL), heme oxygenase 1 (HO-1), and nuclear factor erythroid 2-related factor 2 (Nrf2). Besides, Did also induced activation of PI3K/AKT. Conclusion: These findings indicated Did prevented DOX-induced cardiac injury and apoptosis via activating PI3K/AKT/Nrf2 signaling pathway.     

Louki Zupa decoction attenuates the airway inflammation in acute asthma mice induced by ovalbumin through IL-33/ST2-NF-κB/GSK3β/mTOR signalling pathway

ContextAsthma is a common respiratory system disease. Louki Zupa decoction (LKZP), a traditional Chinese medicine, presents a promising efficacy against lung diseases.ObjectiveTo investigate the pathogenic mechanism of asthma and reveal the intervention mechanism of LKZP.Materials and methodsForty-eight female Balb/c mice were randomly divided into 6 groups: normal control group (NC), ovalbumin (OVA)/saline asthma model group, OVA/LL group, OVA/LM group, OVA/LH group and OVA/DEX group (n = 8 per group). The asthmatic mice were modelled through intraperitoneal injecting and neutralizing OVA. LKZP decoction was administrated by gavage at the challenge stage for seven consecutive days (2.1, 4.2 and 8.4 g/kg/day). We investigated the change in lung function, airway inflammation, mucus secretion and TH-1/TH-2-related cytokines. We further verify the activated status of the IL-33/ST2/NF-κB/GSK3β/mTOR signalling pathway.ResultsLKZP was proved to improve asthmatic symptoms, as evidenced by the down-regulated airway resistance by 36%, 58% and 53% (p < 0.01, p < 0.001 vs. OVA/saline group), up-regulated lung compliance by 102%, 114% and 111%, decreased airway inflammation and mucus secretion by 33%, 40% and 33% (p < 0.001 vs. OVA/saline group). Moreover, the content of cytokines in BALF related to airway allergy (such as IgE) and T helper 1/T helper 2 cells (like IL-2, IL-4, IL-5, IL-13, TNF-α and IFN-γ), were also markedly reduced by 13–65% on LKZP intervention groups compared with model group. Mechanistic research revealed that the IL-33/ST2-NF-κB/GSK3β/mTOR signalling pathway was activated in the OVA/saline group and LKZP significantly down-regulated this pathway.Discussion and conclusionLKZP improves lung function, airway inflammation, mucus secretion and correct immune imbalance by intervening with the IL-33/ST2-NF-κB/GSK3β/mTOR signalling pathway, presenting a promising therapeutic choice for asthma.     

7,7'-Dimethoxyagastisflavone-induced apoptotic or autophagic cell death in different cancer cells

7,7'-Dimethoxyagastisflavone (DMGF), a biflavonoid isolated from the needles of Taxus × media cv. Hicksii, was evaluated for its antiproliferative and antineoplastic effects in three human cancer cell lines. Interestingly, DMGF caused cell death via different pathways in different cancer cells. DMGF induced apoptosis, activated caspase-3 activity and changed the mitochondrial membrane potential in HT-29 human colon cancer cells. However, the apoptotic pathway is not the major pathway involved in DMGF-induced cell death in A549 human lung cancer cells and HepG2 human hepatoma cells. Treatment with 3-MA, an inhibitor of autophagy, significantly decreased DMGF-induced cell death in HepG2 and A549 cells, but did not affect DMGF-induced cell death in HT-29 cells. Following DMGF treatment, the HepG2 cells increased expression of LC3B-II, a marker used to monitor autophagy in cells. Thus, DMGF induced apoptotic cell death in HT-29 cells, triggered both apoptotic and autophagic death in A549 cells and induced autophagic cell death in HepG2 cells.     

大鼠长期脾虚和热证造模的胃黏膜主细胞超微结构观察

目的模拟慢性病证是动物实验的主要难点。本实验观察比较大鼠长期(26周)脾虚和热证造模动物胃黏膜主细胞的超微结构。方法将Wistar大鼠随机分为对照组、脾虚组、热证组。对照组正常饲养26周;脾虚组用耗气破气加饥饱失常法造模26周;热证组灌喂熟附子、肉桂、干姜、女贞子煎剂26周。另取幼年大鼠为幼年组作为对照。实验结束后取胃体后壁组织,透射电镜观察胃黏膜主细胞超微结构。结果对照组主细胞粗面内质网排列基本整齐,部分内质网池略呈小泡状扩张。脾虚组主细胞粗面内质网池扩张,从小泡状至池状之间,甚至呈湖状。胞质内出现髓鞘样小体或髓鞘样结构。热证组主细胞粗面内质网池扩张,呈小泡状,失去正常的同心性层状结构。幼年组主细胞粗面内质网排列比较整齐。结论热证组和脾虚组动物胃黏膜主细胞超微结构均有变化,以脾虚组更为严重。由于实验时间较长,实验结束时大鼠已近1岁龄,所以对照组动物胃黏膜主细胞超微结构也略有衰老改变。     

糖尿病前期人群健康管理的研究思路

糖尿病前期人群是发展成为糖尿病的高危群体,在糖尿病前期进行干预是防止其进展为糖尿病的最佳阶段,故不断探讨及完善糖尿病前期人群健康管理的研究思路具有重要意义。本文提出以中医“治未病”理论为指导,对糟尿病前期人群作出健康风险评估、制定适宜的生活干预方式、给予个性化的健康指导,并归纳糖调节受损易患人群的体质特点,以期形成规范化的健康管理体系。     

麝香酮对氰化钠加缺糖致PC12细胞缺血损伤的保护作用

目的:研究麝香酮对PC12细胞缺血损伤的影响。方法:在离体培养的PC12细胞,用NaCN加缺糖造成拟缺血损伤模型,通过细胞形态学观察、MTT微量比色、培养介质LDH活力测定,研究了麝香酮对该模型的保护作用。结果:10-7~510-5mol/L范围内,麝香酮呈浓度依赖性地降低NaCN加缺糖造成拟缺血损伤模型培养介质内LDH的释放,其IC50为:43.33μmol/L。在10-7~510-5mol/L范围内,麝香酮呈浓度依赖性地增加NaCN加缺糖造成拟缺血损伤模型培养介质的MTT比色值,其IC50为30.62μmol/L。结论:麝香酮对PC12细胞缺血损伤具有保护作用。     

门诊未婚妊娠妇女行人工流产术的心理干预对策

目的：探讨门诊未婚妊娠妇女行人工流产术的心理状态及护理干预措施。方法：选取2008年9月-2011年9月期间在我院门诊人流室行人工流产术的未婚妊娠妇女92例,按照门诊号进行分组,单号为A组,双号为B组,每组46例,A组病例在围手术期进行常规护理,B组病例在围手术期进行心理护理干预措施。结果：未婚妊娠妇女心理负担普遍较重,在落实常规护理的同时,在围手术期实施适当的心理护理干预措施,能大大减少患者的不良心,从而促使手术的顺利进行。结论：在门诊未婚妊娠行人工流产术妇女中实施有效的心理护理干预措施,在与患者沟通的过程中,我们赢得了患者的信任,进而建立和谐的医患关系,增强她们的承受力,帮助她们顺利度过了手术难关,减低人工流产综合征的发生。     

Antioxidative and in vitro hepatoprotective activity of Bupleurum kaoi leaf infusion

The roots of Bupleurus spp. have been used in traditional Chinese herbal medicine for curing liver diseases. Although bioactive saikosaponins have been detected in the leaves as well as in the roots, the aerial parts of the plants are discarded as waste. In the present study, a leaf infusion of B. kaoi Liu, Chao et Chuang, an indigenous Bupleurus species in Taiwan, was prepared and the antioxidant properties and in vitro hepatoprotective activity were demonstrated. The results show that the leaf infusion exerted DPPH free radical scavenging activity, inhibitory capacity on superoxide anion formation and superoxide anion scavenging activity. The hepatotoxicity of acetaminophen (APAP) and carbon tetrachloride (CCl4) on the rat liver cells were also decreased by the leaf infusion.     

冬虫夏草子囊孢子的弹射

在四川康定和西藏那曲两地,对虫草子座的光照强度处理,结果表明：两地的虫草子囊孢子弹射时间有差异;光照强度不同,子囊孢子弹射的数量,时间和萌发率均不同。要使冬虫夏草子囊孢子正常弹射和提高萌发率,必须满足温度、湿度和日照三个基本条件。本结果为人工培植冬虫夏草奠定基础。