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排序方式: 共有491条查询结果,搜索用时 15 毫秒
81.
Foliar sprays of water or 1, 10 and 100 μM aqueous solutions of gibberellic acid (GA3) or kinetin (KIN) were applied to 40-d-old plants of Nigella sativa (L.) to study their effects on net photosynthetic rate, nitrogen metabolism, and the seed yield. 10 μM solutions of both
the hormones, especially GA3, appreciably increased the activities of nitrate reductase and carbonic anhydrase, chlorophyll and total protein contents
and net photosynthetic rate in the leaves, along with capsule number and seed yield plant−1, at harvest. 相似文献
82.
Selection of capsule deficient strains of Methylobacterium rhodesianum producing polyhydroxybutyrate
Methylobacterium rhodesianum was cultivated using an extended fed-batch regime. After treatments with N-nitroso-methyl-urea or X-rays, colonies showing an irregular morphology or increased heavy-metal sensitivity were selected. Electron micrographs of cells of isolated strains demonstrated the loss of the glycocalyx. Selectants and the parental strain yielded identical PHB amounts. 相似文献
83.
目的观察松龄血脉康胶囊联合低剂量厄贝沙坦治疗65岁以上老年高血压病患者的临床疗效。方法将90例65岁以上高血压患者随机分为松龄血脉康胶囊联合低剂量厄贝沙坦治疗组和高剂量厄贝沙坦对照组。治疗组给予松龄血脉康胶囊1.5g,每天3次,同时加厄贝沙坦75mg/d;对照组单纯给予厄贝沙坦150mg/d治疗。两组治疗周期为1个月进行比较血压控制情况及不良反应等指标水平。结果治疗后,两组患者收缩压和舒张压均较治疗前下降,差异有统计学意义(P0.05);治疗后两组患者的收缩压、舒张压比较,差异无统计学意义(P0.05)。结论松龄血脉康联合低剂量厄贝沙坦治疗高血压疗效确切,无明显不良反应,值得临床应用。 相似文献
84.
目的:探讨疏肝益阳胶囊联合万艾可对糖尿病男性性功能障碍患者血清生殖激素睾酮(T)、雌二醇(E2)水平和性功能的影响。方法:选择2015年7月到2016年7月我院接诊的94例糖尿病男性性功能障碍患者,通过随机数表法分作观察组及对照组,每组47例。对照组使用万艾可进行治疗,观察组在其基础上加用疏肝益阳胶囊进行联合治疗。比较两组的临床疗效、治疗前后国际勃起功能指数-5(IIEF-5)问卷表测评评分、部分雄激素缺乏(PADAM)问卷评分、生殖激素睾酮(T)、雌二醇(E2)水平的变化。结果:治疗后,观察组的临床总有效率明显高于对照组(P0.05),IIEF-5评分显著高于对照组(P0.05),PADAM评分明显低于对照组(P0.05),血清T激素水平明显高于对照组(P0.05),血清E2激素水平明显低于对照组(P0.05),治疗组不良反应总发生率明显低于对照组(P0.05)。结论:疏肝益阳胶囊联合万艾可治疗糖尿病男性性功能障碍可有效提高临床疗效,改善患者性功能,可提高血清T水平,降低E2水平。 相似文献
85.
目的:探讨小剂量利妥昔单抗联合龙花胶囊对成人血小板减少症患者促血小板生成素,肾功能水平及临床疗效的影响。方法:收集我院就收治的90例免疫性血小板减少症患者,随机分为实验组和对照组,每组45例。对照组患者给予小剂量利妥昔单抗治疗;实验组患者在对照组基础上使用龙花胶囊治疗。观察并比较两组患者血小板(PLT)计数、促血小板生成素(TPO)、肾功能水平以及临床治疗总有效率。结果:与治疗前相比,治疗后两组患者的PLT、TPO水平均升高,差异具有统计学意义(P0.05);与治疗前相比,治疗后两组患者的肌酐(Scr)、尿素氮(BUN)水平均下降,差异具有统计学意义(P0.05);与对照组相比,实验组患者PLT、TPO水平较低,Scr、BUN水平较高,差异具有统计学意义(P0.05);与对照组相比,实验组患者临床治疗有效率较高,差异具有统计学意义(P0.05)。结论:小剂量利妥昔单抗联合龙花胶囊能够升高血小板减少症患者血小板以及促血小板生成素水平,改善患者肾功能,临床疗效较好,提高了治疗效果。 相似文献
86.
张国华 《现代生物医学进展》2005,5(4):35-36
目的:观察步长稳心颗粒(简称稳心颗粒)治疗功能性早搏的临床疗效及安全性。方法:选择功能性早搏60例病人,随机分为治疗组及对照组,每组各30例。治疗组给予稳心颗粒一包(9克),每日三次,温开水冲服;对照组给予倍他乐克25毫克,每日二次口服,一个月为一疗程。结果:四周后治疗组显效11例,有效16例,总有效率90%。对照组显效8例,有效18例,总有效率86.7%,p>0.05,两组比较无显著性差异。对血压、心率影响方面稳心颗粒明显优于倍他乐克结论:稳心颗粒治疗功能性早搏疗效显著,且效果稳定,安全无明显不良反应,值得临床推广应用。 相似文献
87.
M. P. Filatova O. V. Kotel’nikova O. V. Chibiskova O. E. Lakhtina V. A. Nesmeyanov A. P. Alliluev D. O. Koroev M. A. Titova T. D. Volkova O. M. Vol’pina V. T. Ivanov 《Russian Journal of Bioorganic Chemistry》2008,34(5):563-570
A new approach to the development of a vaccine against meningococci of serogroups A and B was proposed. It involves the synthesis of conjugates of high-molecular capsule polysaccharides of the serogroup A meningococcus (PsA) with earlier synthesized protective fragments of membrane proteins from serogroup B meningococci. The conjugates were synthesized using a method that consists of the generation of aldehyde groups by oxidizing free vicinal hydroxyl groups of PsA and subsequent reaction of these groups with amino groups of the peptide. The reaction proceeds with the intermediate formation of the Schiff base, which is reduced to the stable secondary amine. The main parameters of the reaction were optimized in the synthesis of a PsA conjugate with a model peptide and methods of their characterization were developed. The reproducibility and efficiency of the synthetic procedure were demonstrated by the example of synthesis of PsA conjugates with fragments of protein PorA from the outer membrane of the serogroup B meningococcus. It was shown that, when administered without adjuvant, a conjugate of PsA with a protective peptide, which represents an exposed conserved fragment 306–332 of protein PorA, stimulates the formation of antibodies to the peptide and polysaccharide moieties of the molecule and is also capable of decreasing the degree of bacteremia in animals infected with serogroup A and serogroup B meningococci. The approach can be applied to the development of a complex vaccine for serogroup A and serogroup B meningococci. 相似文献
88.
Pteromalus cerealellae (Ashmead) (Hymenoptera: Pteromalidae) is an ectoparasitoid of several stored-product insect pests. Very little information
has been published on its biology and development in host larvae, which typically are concealed within seeds. We documented
the development of P. cerealellae within fourth instar larvae of its concealed host, Callosobruchus maculatus (F.) (Coleoptera: Chrysomelidae) infesting cowpea seeds. The preimaginal life stages of the parasitoid were characterized
for the first time using morphological structures revealed by microscopic techniques including scanning electron microscopy. Pteromalus cerealellae produces hymenopteriform eggs and larvae. Eggs hatch into 13-segmented first instar larvae with peripneustic condition of
spiracles. The larvae have simple, tusk-like mandibles, whereas the mandibles of the pupae and the adults are of the conventional
toothed types. Using statistical analyses of the sizes of the larval mandibles and head capsules in conjunction with reliable
characters such as the number of exuviae on the body of parasitoid larvae, cuticular folding, and excretion of the meconium,
we recorded four larval instars for P. cerealellae. The data showed significant positive correlations between larval mandible lengths and widths of larval head capsules, as
well as between mandible lengths and larval instars, suggesting that mandible length is a good predictor of the number of
instars in P. cerealellae. Developmental time from egg to adult emergence was ∼12 d for females and ∼11 days for males at 30 ± 1°C, 70 ± 5% r.h. and
12L:12D photoperiod. 相似文献
89.
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. 相似文献
90.
E. M. Skorobrekhova 《Russian Journal of Marine Biology》2009,35(2):178-182
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. 相似文献