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161.
Effect of zinc and melatonin supplementation on cellular immunity in rats with toxoplasmosis 总被引:1,自引:0,他引:1
Baltaci AK Bediz CS Mogulkoc R Kurtoglu E Pekel A 《Biological trace element research》2003,96(1-3):237-245
The effects of zinc (Zn) and/or melatonin supplementation on cellular immunity were investigated in rats infested with Toxoplasma gondii. Fifty Sprague-Dawley male rats were used for this study. All animals were fed a normal diet, ad libitum, containing 97 mg Zn/kg. They were divided into five experimental groups, as follows. Group I (n=10) received intraperitoneal injections of zinc sulfate at a dose of 3 mg/kg/d for 3 wk. Group II (n=10) received intraperitoneal injections of melatonin at a dose of 3 mg/kg/d for 3 wk. Group III (n=10) received intraperitoneal injections of zinc sulfate (3 mg/kg/d) and melatonin (3 mg/kg/d) for 3 wk. Group IV (n=10) was infested controls. Group V (n=10) was healthy controls. There were no differences in the percentage of CD3+ lymphocytes among all groups. For groups I–III,
the CD4+ and CD8+ ratios were higher than those of the groups IV and V controls (p<0.01). Similarly, the total lymphocyte ratios in groups I–III were higher than those of infested and healthy controls (p<0.01). The total lymphocyte ratios in group III were significantly higher than those of groups I and II (p<0.01). The plasma Zn levels in the supplemented groups were significantly higher than those of control groups IV and V (p<0.01). These results suggest that melatonin and/or Zn supplementation may activate cellular immunity by stimulating CD4+
and CD8+ production in infected rats with T. gondii. 相似文献
162.
Akarsu S Kurt AN Dogan Y Yilmaz E Godekmerdan A Aygun AD 《Mediators of inflammation》2005,2005(1):2-8
The aim is to examine whether the changes in pleural fluid interleukin (IL)-1beta, IL-2, IL-6, and IL-8 levels were significant in differential diagnosis of childhood pleural effusions. IL-1beta, IL-2, IL-6, and IL-8 levels in pleural fluids of all 36 patients were measured. The levels of IL-1beta, IL-2, IL-6, and IL-8 in pleural fluids were statistically significantly higher in the transudate group compared with those of the exudate group. The levels of IL-1 beta, IL-6, and IL-8 were also found to be statistically significantly higher in the empyema group compared with both the parapneumonic and the tuberculous pleural effusion groups. The levels of IL-2 and IL-6 were detected to be statistically significantly higher in the tuberculous pleural effusion group in comparison with those of the parapneumonic effusion group. The results showed that pleural fluids IL-1beta, IL-2, IL-6, and IL-8 could be used in pleural fluids exudate and transudate distinction. 相似文献
163.
eküre ulha Erdal Füsun Eyidoan Yasemin Ekmeki 《Physiology and Molecular Biology of Plants》2021,27(2):281
Drought is one of the major environmental stress that adversely affect the growth and development of oil seed plant, safflower. There is a limited knowledge on proteomic responses to support physiological, biochemical changes in how safflowers can regulate growth and metabolism under drought conditions and followed by re-watering. The changes in morphological, physiological, biochemical and proteomics of safflower genotypes (Carthamus tinctorius L.; Remzibey-05 and Linas, tolerant and sensitive cultivars, respectively, and C. oxyacantha M. Bieb., wild type) after exposure to drought and followed by re-watering have been examined. Drought negatively affected the shoot weight, water content, chlorophyll fluorescence, and biochemical parameters, including photosynthetic pigment, proline, MDA, and H2O2 contents and antioxidant enzyme activities in all genotypes, while the re-watering period allowed Remzibey-05 to recover, and it even provided the wild type completely recovered (approximately 100%). A total of 72 protein spots were observed as differently accumulated under treatments. The identified proteins were mainly involved in photosynthesis and carbohydrate, protein, defense, and energy metabolisms. Protein accumulation related to these metabolisms in Remzibey-05 were decreased under drought, while increased following re-watering. However, sensitive cultivar, Linas, could not exhibit an effective performance under drought and recovery when compared with other safflower genotypes. Supplementary InformationThe online version contains supplementary material available at (10.1007/s12298-021-00934-2). 相似文献
164.
Evaluation of winter wheat as a potential relay crop for enhancing biological control of cotton aphids 总被引:3,自引:0,他引:3
A 2-year study was conducted to evaluate the role of winter wheat, Triticum aestivum L., as a potential relay crop to conserve arthropod natural enemies and suppress cotton aphids, Aphis gossypii Glover, in seedling cotton. The results suggested that the natural enemies that moved from the adjacent wheat fields to cotton fields with the maturity and harvest of wheat could keep the cotton aphid population at the edges (0--4 m) of cotton fields under the action threshold of 100 aphids/m2. Data also suggested that the wheat strip served as a reservoir to conserve arthropod predators and relayed its predators to cotton when wheat matured and senesced. 相似文献
165.
Mucins are the major glycoprotein secretions of mucous glands and display important functions in amphibian skin such as regulation
of water homeostasis and mechanical and chemical protection. In the present study, we evaluated the glycoconjugate contents
of developing mucous glands on dorsal regions of metamorphosing Bufo viridis (Amphibia: Anura) tadpoles using an alcian blue-PAS panel and lectin histochemistry. All the conical cells of mucous glands
showed weak positivity for alcian blue in 0.025 M MgCl2 at pH 5.7 but only a few cells were positive for 0.3 M MgCl2 at the same pH. In addition, all the conical cells of mucous glands were negative for alcian blue at pH 2.5. In lectin histochemistry,
conical cells reacted strongly with Galanthus nivalis agglutinin (GNA), Datura stramonium agglutinin (DSA) and peanut agglutinin (PNA), weakly with Maackia amurensis leucoagglutinin (MAL). These results suggest that they express predominantly mannose, galactose and partially α(2→3)-linked sialic acid containing glycoconjugates. We concluded that dorsal mucous glands of metamorphosing Bufo viridis tadpoles contain at least two different conical cell types and glycoconjugate heterogeneity of mucous glands may be related
with different functions of mucins. 相似文献
166.
Hamsters show a preference for Polycose, a mixture of starch-derived
glucose polymers, that is as strong as their preference for sucrose.
However, in the hamster, taste aversions to Polycose may be less easily
acquired than taste aversions to sucrose and the qualitative aspects of
Polycose are unknown in this species. In order to examine the taste of
Polycose in the hamster, we utilized a taste-aversion protocol with two
conditioning trials. Animals were trained to avoid one of three different
conditioning stimuli: 50 mM sucrose, 100 mM Polycose and a mixture of 50 mM
sucrose with 100 mM Polycose. Control animals were conditioned with
deionized water. After the second conditioning trial, generalization
testing began for the three conditioning stimuli plus 3 mM citric acid, 300
mM KCI and 30 mM NaCl. The results showed that aversions to Polycose,
sucrose or the Polycose/sucrose mixture cross- generalized, demonstrating
that Polycose and sucrose share a common taste percept in the hamster. None
of the aversions generalized to NaCl, citric acid or KCI. In addition,
comparisons among the patterns of taste generalizations indicated that the
tastes of Polycose and sucrose also had distinct qualitative components.
Finally, although the taste of 100 mM Polycose was more salient than the
taste of 50 mM sucrose, the taste of sucrose could still be detected in a
mixture with Polycose.
相似文献
167.
Purpose
Although deep vein thrombosis and thromboembolic diseases differ among various races, they are still important in our day. The difficulties in treatment and following-up of these diseases are caused by secret genetic mutations rather than predisposing factors.Methods
Between January 2011 and May 2013, patients who were traced for deep vein thrombosis and/or pulmonary embolism were evaluated retrospectively. 84 patients (53.6% males and 46.4% females) were included in the study. Their family histories, predisposing factors and treatments were researched. Factor V Leiden (G 1691A), Factor II G20210A, Plasminogen Activator Inhibitor-Type 1 (4G/5G), and Methylene Tetrahydrofolate Reductase (C677T, A1298C) mutations were investigated from peripheral venous blood.Results
Among the genetic mutations we searched, the incidence of single mutation rate was observed at 11.9%, double mutation collocation at 44%, triple mutation collocation at 29.8%, quadruple mutation collocation at 13.1%, and finally, quintuplet mutation collocation at 1.2%. Our approximate mutation number was found as 2.47 ± 0.91.Conclusion
We observed that multiple mutations were high in number compared to single genetic mutations. The patients who have multiple mutations should be more in the front line considering their diagnosis, treatment and following up, and also in terms of decreasing mortality, morbidity and recurrence. 相似文献168.
Mine Turktas Özge Karakaş Metin Berk Baştuğ Fahriye Ertuğrul Yasemin Izgi Saraç Erdal Kaya 《Botanical journal of the Linnean Society. Linnean Society of London》2013,172(3):270-279
We investigated the phylogenetic relationships in Tulipa in Turkey using DNA sequences from the plastid trnL‐trnF region and the internal transcribed spacer (ITS) of nuclear ribosomal DNA. We generated trnL‐trnF and nuclear ITS sequences for 11 Tulipa spp. from Turkey and compared the utility of trnL‐trnF and ITS sequences for phylogenetic analysis. Neighbor‐joining, Bayesian and maximum parsimony methods were implemented using the same matrices. Our study of Tulipa based on molecular data revealed congruent results with previous studies. Despite the relatively lower resolution of trnL‐trnF than that of ITS, both sequence matrices generated similar results. Three clades were clearly distinguished, corresponding to subgenera Tulipa, Eriostemones and Orithyia. It is not fully resolved whether Clusianae should be recognized as a separate section of subgenus Tulipa or a distinct subgenus. © 2013 The Linnean Society of London, Botanical Journal of the Linnean Society, 2013, 172 , 270–279. 相似文献
169.
Sadiye Hayta Aynur Gurel Ismail Hakkı Akgun Filiz Altan Markus Ganzera Bahattin Tanyolac Erdal Bedir 《Biologia》2011,66(4):618-625
Gentiana cruciata L. (cross gentian) is a medicinal and ornamental plant. The root extracts of this species are known to exhibit many curative
properties. The natural Gentiana populations are exposed to great danger because of their uncontrolled usage. In this study, hairy roots from Gentiana cruciata L. stem and leaf explants belonging to three different clones were induced by inoculation with four different Agrobacterium rhizogenes wild strains namely A4, 15834, 8196 and R1000. Induction of the root transformation was significantly dependent on the explant
type used. On the other hand, the genotype and bacterial strain had no significant effect on hairy root formation. Hairy root
formation percentages of the explants varied between 5.6–33.3% in the stem explants, and between 0.0–6.7% in the leaf explants.
Transformations of the hairy roots were confirmed by PCR using rolC specific primers, and revealed the absence of contaminating A. rhizogenes with virC primers. Total of twelve hairy root clones were obtained, and their secondary metabolite content was also analyzed by HPLC.
Quantitative results exhibited that gentiopicroside was the most abundant compound in all root samples. Furthermore, metabolites
such as loganic acid, swertiamarin, and sweroside were also identified and quantified in the samples. 相似文献
170.
JÉRÔME MUNZINGER 《Botanical journal of the Linnean Society. Linnean Society of London》2001,137(1):91-97
While working on a treatment of Violaceae for the Flore de Nouvelle-Caledonie et dependences , two new species were recognized, Agatea veillonii Munzinger and A. lecointei Munzinger. These species are here described and illustrated. Some taxonomic notes and a regional identification key are provided. 相似文献