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排序方式: 共有65条查询结果,搜索用时 504 毫秒
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Renu Goel Krishna R Murthy Srinivas M Srikanth Sneha M Pinto Mitali Bhattacharjee Dhanashree S Kelkar Anil K Madugundu Gourav Dey Sujatha S Mohan Venkatarangaiah Krishna TS Keshava Prasad Shukti Chakravarti HC Harsha Akhilesh Pandey 《Clinical proteomics》2013,10(1):9
Background
The ciliary body is the circumferential muscular tissue located just behind the iris in the anterior chamber of the eye. It plays a pivotal role in the production of aqueous humor, maintenance of the lens zonules and accommodation by changing the shape of the crystalline lens. The ciliary body is the major target of drugs against glaucoma as its inhibition leads to a drop in intraocular pressure. A molecular study of the ciliary body could provide a better understanding about the pathophysiological processes that occur in glaucoma. Thus far, no large-scale proteomic investigation has been reported for the human ciliary body.Results
In this study, we have carried out an in-depth LC-MS/MS-based proteomic analysis of normal human ciliary body and have identified 2,815 proteins. We identified a number of proteins that were previously not described in the ciliary body including importin 5 (IPO5), atlastin-2 (ATL2), B-cell receptor associated protein 29 (BCAP29), basigin (BSG), calpain-1 (CAPN1), copine 6 (CPNE6), fibulin 1 (FBLN1) and galectin 1 (LGALS1). We compared the plasma proteome with the ciliary body proteome and found that the large majority of proteins in the ciliary body were also detectable in the plasma while 896 proteins were unique to the ciliary body. We also classified proteins using pathway enrichment analysis and found most of proteins associated with ubiquitin pathway, EIF2 signaling, glycolysis and gluconeogenesis.Conclusions
More than 95% of the identified proteins have not been previously described in the ciliary body proteome. This is the largest catalogue of proteins reported thus far in the ciliary body that should provide new insights into our understanding of the factors involved in maintaining the secretion of aqueous humor. The identification of these proteins will aid in understanding various eye diseases of the anterior segment such as glaucoma and presbyopia. 相似文献3.
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Beletskaia TS Samoĭlovich EO Korotkova EA Scheslenok EP Fel'dman EV 《Molekuliarnaia genetika, mikrobiologiia i virusologiia》2002,(1):24-31
One hundred and eight vaccine-derived strains of types 1, 2, and 3 poliovirus (25 PV1, 34 PV2, and 48 PV3) isolated in Belarus in 1960-1999 were analyzed by double restriction fragment length polymorphism assay (RFLP-1, -3D1). Forty-four (40.7%) of strains were genetically modified. Eight (7.4%) PV were modified by mutation, 16 (14.8%) by recombination, and 20 (18.5%) by both mutation and recombination. The genomes of 16 PV were analyzed by multiple RFLP technique covering VP1-, VP1/VP2A-, P2-, 3AC-, and 3D1-coding regions. The majority of recombinants were "simple" (with one crossing over site). One strain was "double" recombinant (two crossings over sites) and one more "multiple" recombinant (three crossing over sites). Partial nucleotide sequencing of some recombinant strains showed that the degree of these strains' divergence was less than 1% in comparison with the original vaccine viruses. 相似文献
5.
V I Bobrov O I Nazarova G T Beletskaia I V Agapitova V P Iakovlev 《Antibiotiki i khimioterapii͡a》1988,33(5):355-359
Combined use of sulfalen and sulfadimethoxine with benzylpenicillin and ampicillin resulted in increased binding of sulfalen to serum proteins of man. Acetylsalicylic acid promoted a decrease in the sulfanilamide binding to the serum proteins. The observed changes in the sulfanilamide binding to proteins of human blood serum were due to increased or decreased affinity of the drugs to the protein molecules. 相似文献
6.
Sonya B Dumanis Kelly A Chamberlain Yoo Jin Sohn Young Jin Lee Suzanne Y Guénette Toshiharu Suzuki Paul M Mathews Daniel TS Pak G William Rebeck Yoo-hun Suh Hee-Sae Park Hyang-Sook Hoe 《Molecular neurodegeneration》2012,7(1):1-15
Background
Loss-of-function mutations in PTEN-induced kinase 1 (PINK1) have been linked to familial Parkinson??s disease, but the underlying pathogenic mechanism remains unclear. We previously reported that loss of PINK1 impairs mitochondrial respiratory activity in mouse brains.Results
In this study, we investigate how loss of PINK1 impairs mitochondrial respiration using cultured primary fibroblasts and neurons. We found that intact mitochondria in PINK1?/? cells recapitulate the respiratory defect in isolated mitochondria from PINK1?/? mouse brains, suggesting that these PINK1?/? cells are a valid experimental system to study the underlying mechanisms. Enzymatic activities of the electron transport system complexes are normal in PINK1?/? cells, but mitochondrial transmembrane potential is reduced. Interestingly, the opening of the mitochondrial permeability transition pore (mPTP) is increased in PINK1?/? cells, and this genotypic difference between PINK1?/? and control cells is eliminated by agonists or inhibitors of the mPTP. Furthermore, inhibition of mPTP opening rescues the defects in transmembrane potential and respiration in PINK1?/? cells. Consistent with our earlier findings in mouse brains, mitochondrial morphology is similar between PINK1?/? and wild-type cells, indicating that the observed mitochondrial functional defects are not due to morphological changes. Following FCCP treatment, calcium increases in the cytosol are higher in PINK1?/? compared to wild-type cells, suggesting that intra-mitochondrial calcium concentration is higher in the absence of PINK1.Conclusions
Our findings show that loss of PINK1 causes selective increases in mPTP opening and mitochondrial calcium, and that the excessive mPTP opening may underlie the mitochondrial functional defects observed in PINK1?/? cells. 相似文献7.
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D G Silagadze L V Beletskaia E I Drobyshevskaia P V Chelidze V N Abyzov 《Biulleten' eksperimental'no? biologii i meditsiny》1987,104(10):488-490
Using indirect immunoenzyme assay and ultrathin sections, it was shown that antibodies against basal cell antigens react with tonofibril and desmosome filaments of squamous tissue carcinoma cells. 相似文献
9.
E I Drobyshevskaia V N Abyzov I M Liampert S V Spitsyn L V Beletskaia 《Biulleten' eksperimental'no? biologii i meditsiny》1989,107(1):77-80
By the indirect immunofluorescence method it was shown to which epithelial thymus structures monoclonal antibodies (mAT) reacting with the different epidermal structures are directed. These mAT related to the autoantibodies were obtained earlier, as a result of lymphoid cells polyclonal activation, by the immunization of BALB/c mice with streptococcal group A nonspecific protein antigens of the cell wall. It was shown that mAT A6/1, reacting with the basal layer of the skin epithelium are directed to the epithelium of the cortical and medullar thymus zones, which is regarded as the so called endocrinal epithelium. These mAT, by the study with immunoblotting method, react with the protein of mV SOkD, B5/1 mAT to the skin epithelium, on the thymus sections react with the single cells around the Hassel bodies. 相似文献
10.
The invasive freshwater snail Tarebia granifera (Lamarck, 1822) was first reported in South Africa in 1999 and it has become widespread across the country, with some evidence to suggest that it reduces benthic macroinvertebrate biodiversity. The current study aimed to identify the primary abiotic drivers behind abundance patterns of T. granifera, by comparing the current abundance of the snail in three different regions, and at three depths, of the highly modified Nseleni River in KwaZulu-Natal, South Africa. Tarebia granifera was well established throughout the Nseleni River system, with an overall preference for shallow waters and seasonal temporal patterns of abundance. Although it is uncertain what the ecological impacts of the snail in this system are, its high abundances suggest that it should be controlled where possible and prevented from invading other systems in the region. 相似文献