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single nucleotide polymorphism, MCP-1, RANTES, CCR5

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https://www.readbyqxmd.com/read/23403273/novel-genetic-association-of-tnf-%C3%AE-238-and-pdcd1-7209-polymorphisms-with-long-term-non-progressive-hiv-1-infection
#1
Milena Nasi, Agostino Riva, Vanni Borghi, Roberto D'Amico, Cinzia Del Giovane, Claudio Casoli, Massimo Galli, Elisa Vicenzi, Lara Gibellini, Sara De Biasi, Mario Clerici, Cristina Mussini, Andrea Cossarizza, Marcello Pinti
OBJECTIVES: About 2-5% of HIV-1-infected subjects, defined as long-term non-progressors (LTNPs), remain immunologically stable for a long time without treatment. The factors governing this condition are known only in part, and include genetic factors. Thus, we studied 20 polymorphisms of 15 genes encoding proinflammatory and immunoregulatory cytokines, chemokines and their receptors, genes involved in apoptosis, and the gene HCP5. METHODS: We analyzed 47 Caucasian LTNPs infected for >9 years, compared with 131 HIV-1-infected Caucasian patients defined as 'usual progressors'...
October 2013: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/22554651/genetic-polymorphisms-of-ccl2-ccl5-ccr2-and-ccr5-genes-in-sahariya-tribe-of-north-central-india-an-association-study-with-pulmonary-tuberculosis
#2
Gunja Mishra, Satish S Poojary, Prithvi Raj, Pramod Kumar Tiwari
The association of genetic variants of chemokines, CCL2 [MCP-1 (monocyte chemoattractant protein-1)], CCL5 [RANTES (regulated on activation, normal T-cell expressed and secreted)] and their receptors CCR2 and CCR5, respectively, earlier reported to be associated with susceptibility to pulmonary tuberculosis (PTB) in certain ethnic populations, were explored in Sahariya tribe, a primitive tribe of North Central India having a high prevalence of TB. We genotyped 215 cases and 215 controls of Sahariya tribe for polymorphisms in CCL2 (-2518A/G, -362G/C) by PCR-RFLP method and in CCR2 (V64I), CCL5 (-403G/A, -28C/G) and CCR5 (-59029G/A) by ARMS-PCR method...
July 2012: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/21975429/genetic-variations-and-heterosexual-hiv-1-infection-analysis-of-clustered-genes-encoding-cc-motif-chemokine-ligands
#3
L Hu, W Song, I Brill, J Mulenga, S Allen, E Hunter, S Shrestha, J Tang, R A Kaslow
Several CC-motif chemokine ligands (CCLs) can block HIV-1-binding sites on CC-motif chemokine receptor 5 (CCR5) and inhibit viral entry. We studied single-nucleotide polymorphisms (SNPs) in genes encoding three CCR5 ligands (CCL3 (MIP-1a), CCL4 (MIP-1b)and CCL5 (RANTES)) along with an adjacent gene encoding a CCR2ligand (CCL2 (MCP-1)) to identify candidate markers for HIV-1 infection and pathogenesis. Analyses of 567 HIV-1 serodiscordant Zambian couples revealed that rs5029410C (in CCL3 intron 2) was associated with lower viral load (VL) in seroconverters, adjusted for gender and age (regression β=-0...
February 2012: Genes and Immunity
https://www.readbyqxmd.com/read/18060801/genetic-control-of-chemokines-in-severe-human-internal-carotid-artery-stenosis
#4
Giorgio Ghilardi, Maria Luisa Biondi, Olivia Turri, Francesca Pateri, Gianvico Melzi d'Eril, Roberto Scorza
BACKGROUND AND PURPOSE: Atherosclerosis is an inflammatory disease. Chemokines and chemokine receptors are known to be involved in atherogenesis. Common single nucleotide polymorphisms (SNPs) affect transcription in response to inflammatory stimuli. The aim of this study was to evaluate the correlations between MCP-1, RANTES, SDF-1, CCR2, and CCR5 gene polymorphisms with increased risk of internal carotid artery (ICA) stenosis. METHODS: Hundred and twelve patients, consecutively recruited for ICA occlusive disease, and 282 controls were genotyped for MCP-1-2518G, RANTES-403A, CCR5Delta32, CCR2 V64I, and SDF-1-801A polymorphisms...
January 2008: Cytokine
https://www.readbyqxmd.com/read/17989610/genetic-variability-of-major-inflammatory-mediators-has-no-impact-on-the-outcome-of-kidney-transplantation
#5
Irena Brabcova, Jan Petrasek, Petra Hribova, Katerina Hyklova, Katerina Bartosova, Jiri Lacha, Ondrej Viklický
BACKGROUND: Functionally relevant polymorphisms in genes of the Th1 and Th2-inflammatory pathway influence the susceptibility to acute rejection (AR), chronic allograft nephropathy (CAN), and subclinical rejection (SR) as well as graft survival after renal transplantation. Because these findings have not been validated, we sought confirmatory evidence of these associations in a larger group of renal transplant recipients. METHODS: A total of 436 kidney transplant recipients were genotyped for 9 single nucleotide polymorphisms (TNF-alpha-308G/A, MCP-1-2518A/G, RANTES-403G/A, -109T/C and -28C/G, CCR2+190G/A, IFN-gamma+874A/T, TGF-beta+869T/C and +915G/C) and for the 32-bp indel polymorphism in CCR5...
October 27, 2007: Transplantation
https://www.readbyqxmd.com/read/17596666/rantes-mcp-1-ccr2-ccr5-cxcr1-and-cxcr4-gene-polymorphisms-are-not-associated-with-the-outcome-of-hepatitis-b-virus-infection-results-from-a-large-scale-single-ethnic-population
#6
Jae Youn Cheong, Sung Won Cho, Jeong Young Choi, Jung A Lee, Min Ho Kim, Jong Eun Lee, Ki Baik Hahm, Jin Hong Kim
Recovery from hepatitis B virus (HBV) infection depends on the cellular immune responses. Chemokines and their receptors play significant roles in immune defense. This study was undertaken to investigate the association between HBV infection and single nucleotide polymorphisms (SNPs) of genes for the chemokines and their receptors. Between March 2002 and February 2004, a total of 957 single ethnic Korean patients were enrolled into two different groups; "HBV clearance group" (n=350), who have recovered from HBV infection, and "HBV persistence group" (n=607), who were repeatedly HBsAg-positive...
June 2007: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/17428349/association-of-tgfbeta1-tnfalpha-ccr2-and-ccr5-gene-polymorphisms-in-type-2-diabetes-and-renal-insufficiency-among-asian-indians
#7
Pushplata Prasad, Arun K Tiwari, K M Prasanna Kumar, A C Ammini, Arvind Gupta, Rajeev Gupta, B K Thelma
BACKGROUND: Cytokines play an important role in the development of diabetic chronic renal insufficiency (CRI). Transforming growth factor beta1 (TGF beta1) induces renal hypertrophy and fibrosis, and cytokines like tumor necrosis factor-alpha (TNFalpha), chemoattractant protein-1 (MCP-1), and regulated upon activation and normal T cell expressed and secreted (RANTES) mediate macrophage infiltration into kidney. Over expression of these chemokines leads to glomerulosclerosis and interstitial fibrosis...
2007: BMC Medical Genetics
https://www.readbyqxmd.com/read/15588479/characterisation-of-snp-haplotype-structure-in-chemokine-and-chemokine-receptor-genes-using-ceph-pedigrees-and-statistical-estimation
#8
Vanessa J Clark, Michael Dean
Chemokine signals and their cell-surface receptors are important modulators of HIV-1 disease and cancer. To aid future case/control association studies, aim to further characterise the haplotype structure of variation in chemokine and chemokine receptor genes. To perform haplotype analysis in a population-based association study, haplotypes must be determined by estimation, in the absence of family information or laboratory methods to establish phase. Here, test the accuracy of estimates of haplotype frequency and linkage disequilibrium by comparing estimated haplotypes generated with the expectation maximisation (EM) algorithm to haplotypes determined from Centre d'Etude Polymorphisme Humain (CEPH) pedigree data...
March 2004: Human Genomics
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