三康胶囊对高原移居青年PWC170的影响

目的探讨在高原服用三康胶囊对移居青年体力作业效率的影响.方法对进驻海拔3700 ml年的10名青年在服药前和服药15 d后分别用EGM-II型踏车功量计做坐位蹯车运动,初始负荷功率为50W,每3min递增50W,以60 r/min连续踏车至200w 3 min后终止.用直线回归法计算每位受试者的PWC170.结果服药前PWCl70为(234.63±16.68)W,服药后PWC170为(258.66±16.85)W,服药后较服药前PWG170明显增高,差异有非常显著性意义(P＜0.01).结论服用三康胶囊能明显提高高原移居青年的心功能及做功效率.     

Encapsulation of the metacercariae of two species of trematodes in the skin and musculature of the stone cockscomb <Emphasis Type="Italic">Alectrias alectrolophus</Emphasis> (Pallas, 1814)

The structure of the coating surrounding the metacercaria of Cryptocotyle lingua in the skin and the metacercaria of Liliatrema skrjabini in the muscles of the stone cockscomb was studied. Metacercariae of these trematodes were surrounded by a cyst adjacent to the helminth and by a capsule. In both species, the cyst consisted of electron- dense homogeneous material, which was probably synthesized by the parasite. The capsules were formed from host tissues; in C. lingua, they mostly consisted of ordered layers of collagen fibers and in L. skrjabini they were formed from fibroblasts and, presumably, phagocytes. The differences in capsule structure of the studied metacercariae may be related to the physiological features of surrounding tissues or to the taxonomic attribution of the trematodes.     

Iron-binding characterization and polysaccharide production by Klebsiella oxytoca strain isolated from mine acid drainage

Aims:  To investigate Klebsiella oxytoca strain BAS-10 growth on ferric citrate under anaerobic conditions for exopolysaccharide (EPS) production and localization on cell followed by the purification and the EPS determination of the iron-binding stability constant to EPS or biotechnological applications.
Methods and Results:  Klebsiella oxytoca ferments ferric citrate under anaerobic conditions and produces a ferric hydrogel, whereas ferrous ions were formed in solution. During growth, cells precipitate and a hydrogel formation was observed: the organic material was constituted of an EPS bound to Fe(III) ions, this was found by chemical analyses of the iron species and transmission electron microscopy of the cell cultures. Iron binding to EPS was studied by cyclic voltammetric measurements, either directly on the hydrogel or in an aqueous solutions containing Fe(III)-citrate and purified Fe(III)-EPS. From the voltammetric data, the stability constant for the Fe(III)-EPS complex can be assumed to have values of approx. 10¹²–10¹³. It was estimated that this is higher than for the Fe(III)-citrate complex.
Conclusions:  The production of Fe(III)-EPS under anaerobic conditions is a strategy for the strain to survive in mine drainages and other acidic conditions. This physiological feature can be used to produce large amounts of valuable Fe(III)-EPS, starting from a low cost substrate such as Fe(III)-citrate.
Significant and Impact of the Study:  The data herein demonstrates that an interesting metal-binding molecule can be produced as a novel catalyst for a variety of potential applications and the EPS itself is a valuable source for rhamnose purification.     

新型隐球酵母铜应答转录因子Cuf1与荚膜的生物合成的相关性研究

摘要：【目的】新型隐球酵母是人类条件致病真菌,主要感染免疫缺陷患者。该酵母最显著的特征是细胞外包被主要的致病因子-多糖荚膜,其调控机制复杂。本文研究旨在阐述编码铜依赖转录因子的CUF1基因对其荚膜生物合成的负调控作用。【方法】以野生型菌株为对照,对CUF1缺失的突变菌株进行菌落形态观察、荚膜墨汁染色的显微观察、细胞聚沉试验以及荚膜定量分析。【结果】与野生型菌株相比,Δcuf1突变株产生的菌落更粘,显微镜下亦可明显观察到荚膜更厚。同样数量的细胞,突变株聚沉平衡后体积更大。此外,荚膜粗提物定量称重分析也证明突     

双丹胶囊对大鼠脑缺血再灌注损伤保护作用研究

目的：观察双丹胶囊对大鼠局灶性脑缺血再灌注损伤的脑梗死体积、自由基变化的影响,探讨双丹胶囊对脑缺血损伤的保护作用。方法：复制大鼠中动脉缺血再灌注模型,分别给药干预,在给药后观察行为学、脑梗死率、脑指数、脑含水量、SOD、MAD等指标。结果：双丹胶囊可改善动物的神经行为学评分,明显降低动物的脑梗死率、脑指数、脑含水量、提高脑组织SOD活性、降低MDA含量,并成剂量依赖。结论：双丹胶囊对脑缺血再灌注损伤具有保护作用。     

Stomatal Ultrastructure, Molecular Phylogeny, and Description of Parasitodiplogaster laevigata n. sp. (Nematoda: Diplogastridae), a Parasite of Fig Wasps

Parasitodiplogaster comprises a potentially large radiation of nematode species that appear to be parasitically bound to their Agaonid fig wasp hosts, which are mutualistically associated in the syconia (figs) of the diverse plant genus Ficus. Parasitodiplogaster laevigata n. sp. is described and illustrated as an associate of the fig wasp, Pegoscapus sp. from Ficus laevigata from southern Florida. It is the first species of Parasitodiplogaster reported from North America and is closest to P. trigonema from F. trigonata from Panama. Parasitodiplogaster laevigata n. sp. can be differentiated from all described species of Parasitodiplogaster based on stomatal morphology (presence of a large dorsal and a right subventral tooth) in the adults of both sexes, molecular comparisons of two expansion segments (D2,D3) of the large subunit (LSU) rRNAgene, and fig-fig wasp host affinities. The ultrastructure of P. laevigata n. sp. was elucidated using TEM and SEM for comparisons with other species of Parasitodiplogaster. The stoma of P. laevigata n. sp. possesses a nonsegmented cheilostomal ring that connects to the longitudinal body musculature per- and interradially, a claw-like dorsal tooth, a right subventral tooth, and telostegostomatal apodemes arising from the dorsal side of each subventral sector. The unification of the pro-, meso-, and metastegostom with the gymnostom in P. laevigata n. sp. and further simplification in other described species may be due to derived adaptations associated with the internal parasitism of fig wasps.     

双歧杆菌三联活菌胶囊在术后早期炎性肠梗阻治疗中的应用

目的探究双歧杆菌三联活菌胶囊辅助治疗术后早期炎性肠梗阻的临床效果。方法收集兰州大学第一医院2014年9月至2016年9月收治的术后早期炎性肠梗阻患者56例为研究对象,随机分为对照组和干预组,每组28例,对照组予以常规治疗,干预组在对照组治疗基础上加用双歧杆菌三联活菌胶囊。收集整理两组患者临床数据并分析比较临床治疗效果。结果两组患者治疗总有效率差异无统计学意义(P0.05)。干预组患者腹胀消失时间、肛门排气时间、肠鸣音恢复时间均较对照组短(P0.05);两组患者治疗前后降钙素原下降及淋巴细胞绝对值增加差异均有统计学意义(P0.05),且干预组治疗前后降钙素原降低及淋巴细胞绝对值增加幅度与对照组相比差异均有统计学意义(P0.05)。结论双歧杆菌三联活菌胶囊用于术后早期炎性肠梗阻的治疗,可缩短治疗时间,促进肠道免疫功能恢复,且使用安全,值得临床推广。     

天香胶囊对晕动病模型大鼠行为学与前庭核c-fos蛋白表达的影响

目的:观察中药复方天香胶囊对晕动病模型大鼠行为学与前庭核c-fos蛋白表达的影响。方法:选择雄性SD大鼠并将其随机分为正常组、模型组、阳性药组、天香胶囊低、中、高剂量组。灌胃预给药3天后,采用双轴旋转刺激法建立大鼠晕动病模型,通过晕反应指数评分、自发活动实验、异嗜高岭土实验检测各组大鼠行为学变化,Western blotting法与免疫组化法检测各组大鼠前庭核c-fos蛋白的表达。结果:与正常组大鼠相比,模型组大鼠晕反应指数和高岭土摄入量均显著增高,自发活动总路程与次数均显著减少,前庭核c-fos蛋白表达水平显著增高;与模型组相比,天香胶囊可显著降低晕动病模型大鼠晕反应指数与高岭土摄入量,提高自发活动总路程与活动次数,降低大鼠前庭核组织c-fos蛋白表达。结论:天香胶囊可有效改善晕动病模型大鼠的行为学变化,其作用机制可能与下调前庭核c-fos表达有关,提示降低前庭核兴奋性可能是天香胶囊抗晕动病的内在机制之一。     

疏风解毒胶囊辅以综合管理干预对慢性阻塞性肺疾病患者呼吸及运动功能的影响

摘要 目的：探讨疏风解毒胶囊辅以综合管理干预对慢性阻塞性肺疾病（COPD）患者呼吸及运动功能改善的影响。方法：选取2018年10月-2019年10月到我院进行治疗的COPD患者84例作为研究对象,随机数字表法分为两组,患者均使用疏风解毒胶囊进行治疗,对照组（n=42）予以常规干预,试验组（n=42）进行综合管理干预。对比两组患者的临床治疗有效率、肺功能改善情况、肺功能指标、呼吸困难指数（MRC）评分以及6分钟步行实验（6MWT）结果。结果：试验组的临床治疗有效率高于对照组（P<0.05）。干预后,两组动脉血二氧化碳分压（PaCO₂）和MRC评分较干预前降低（P<0.05）,动脉血氧分压（PaO₂）、动脉血氧饱和度（SaO₂）、第1秒用力呼气容器（FEV₁）、用力肺活量（FVC）、FEV₁/FVC均较干预前升高（P<0.05）,6MWT距离较干预前增加（P<0.05）,且试验组上述指标改善情况更优（P<0.05）。结论：疏风解毒胶囊辅以综合管理干预可提高COPD患者的临床治疗效果,改善其肺功能,可有效缓解呼吸困难,提升运动强度,值得在临床上应用与推广。     

乳杆菌活菌胶囊辅助治疗妊娠期外阴阴道假丝酵母菌病疗效观察

目的探讨乳杆菌活菌胶囊辅助治疗妊娠期外阴阴道假丝酵母菌病疗效观察。方法选取妊娠期外阴阴道假丝酵母菌病患者70例,采用随机数字表将纳入患者分为观察组35例和对照组35例。观察组患者予以乳杆菌活菌胶囊联合制菌素阴道栓治疗,对照组予以单纯的制菌素阴道栓治疗,均连用10d。两组患者停药2周后进行临床疗效观察,并比较治疗后随访3个月的复发率。结果治疗后停药2周,观察组患者的临床总有效率（91．43％）明显优于对照组（71．43％）（χ2=4．63,P〈0．05）;治疗后随访观察3个月,对照组复发11例（44．00％）,观察组复发5例（15．63％）,观察组患者复发率明显低于对照组（χ2=5．60,P〈0．05）。结论乳杆菌活菌胶囊辅助治疗妊娠期外阴阴道假丝酵母菌病疗效好,复发率低,对外阴阴道假丝酵母菌病具有治疗和预防复发的双重功效。