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https://www.readbyqxmd.com/read/28425245/xenobiotic-drug-metabolizing-enzyme-and-tp53-polymorphisms-and-clinical-outcome-in-advanced-nonsmall-cell-lung-cancer-patients
#1
Volkan Karacaoğlan, Ahmet Oğuz Ada, Serdar Bilgen, Guzide Tuğba Çetinkaya, Emre Soydaş, Celalettin Semih Kunak, Sibel Meryem Alpar, Meral Gülhan, Mümtaz Işcan
BACKGROUND/AIM: The association between polymorphisms of xenobiotic/drug metabolizing enzymes and TP53 and response to chemotherapy and survival of patients with nonsmall cell lung cancer (NSCLC) are limited and inconclusive. In this study, CYP2E1*5B, CYP2E1*6, CYP2E1*7B, GSTO1 (A140D), and TP53 (Arg72Pro) polymorphisms and response to platinum-based chemotherapy and survival in 137 advanced stage NSCLC patients were investigated. MATERIALS AND METHODS: Genetic polymorphism analyses were determined by polymerase chain reaction (PCR) coupled with restriction fragment length polymorphism (RFLP)...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28410197/associations-of-the-glutathione-s-transferase-p1-ile105val-genetic-polymorphism-with-gynecological-cancer-susceptibility-a-meta-analysis
#2
Erjiang Zhao, Kai Hu, Yan Zhao
The association between the glutathione S-transferase P1 (GSTP1) Ile105Val polymorphism and gynecological cancer susceptibility has been evaluated in many studies. However, the results remain controversial. Thus, this meta-analysis, based on 10 published case-control studies, was designed to clarify the association of the GSTP1 Ile105Val polymorphism with gynecological cancer risk. Our results suggested that there was no significant association between the GSTP1 Ile105Val polymorphism and the risk of gynecological cancer in all genetic models (GG vs...
March 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/28397729/glutathione-s-transferase-p1-ile105val-polymorphism-and-male-infertility-risk-an-updated-meta-analysis
#3
Xue-Kun Huang, Yong-Han Huang, Juan-Hua Huang, Jing-Yao Liang
BACKGROUND: Several studies concerning the association between glutathione S-transferase P1 (GSTP1) Ile105Val polymorphism and male infertility risk have reported controversial findings. The present study was aimed to explore this association using a meta-analysis. METHODS: The PubMed, EMBASE, China National Knowledge Infrastructure (CNKI), and Wanfang databases were searched. Odds ratios (OR s) with 95% confidence intervals (CI s) were calculated to estimate the strength of the association...
April 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28365938/polymorphic-expression-of-glutathione-transferases-a1-m1-p1-and-t1-in-epithelial-ovarian-cancer-a-serbian-case-control-study
#4
Igor Pljesa, Milica Berisavac, Tatjana Simic, Tatjana Pekmezovic, Vesna Coric, Sonja Suvakov, Ljiljana Stamatovic, Marija Matic, Bojana Gutic, Sanja Milenkovic, Marija Pljesa-Ercegovac, Ana Savic-Radojevic
PURPOSE: Since several studies have proposed that epithelial ovarian cancer should not be considered as a single disease entity and that it results from an accumulation of genetic changes, we aimed to assess the polymorphic expression of major cytosolic glutathione S-transferases (GSTM1, T1, A1 and P1) with respect to ovarian cancer susceptibility and aggressiveness. METHODS: This case-control study was conducted on 93 newly diagnosed epithelial ovarian cancer patients and 178 healthy matched controls...
January 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28361858/impact-of-single-nucleotide-polymorphism-in-chemical-metabolizing-genes-and-exposure-to-wood-smoke-on-risk-of-cervical-cancer-in-north-indian-women
#5
K Satinder, R C Sobti, K Pushpinder
AIM: In the present study, we investigated the hypothesis whether exposure to wood smoke increases the risk of cervical cancer (CC) in North-Indian women who inherit different polymorphic forms of chemical metabolizing genes (GSTM1, GSTT1, GSTP1 and CYP1A1). MATERIALS AND METHODS: One hundred fifty histologically confirmed CC patients and equal number of cancer-free age and ethnicity matched controls were genotyped for genetic polymorphism in chemical metabolizing genes by using polymerase chain reaction/restriction fragment length polymorphism method...
March 2017: Experimental Oncology
https://www.readbyqxmd.com/read/28315507/polymorphisms-and-mutations-in-gstp1-rad51-xrcc1-and-xrcc3-genes-in-breast-cancer-patients
#6
Mazhar Salim Al Zoubi, Katia Zavaglia, Chiara Mazanti, Mohammad Al Hamad, Khalid Al Batayneh, Alaa A A Aljabali, Generoso Bevilacqua
BACKGROUND: Genotoxic factors, including ionizing radiation and oxidative stress, are associated with genomic instability and development of breast cancer (BC). The homologous recombination DNA repair (HRR) pathway, base excision repair (BER) mechanism, and antioxidative enzymes are required as defense mechanisms against these DNA damaging agents. GSTP1, XRCC1, XRCC3 and RAD51 proteins are essential components of antioxidation, BER and HRR of DNA, respectively. Deficiencies in BER, HRR and antioxidation pathways are involved in the progression of cancer...
March 6, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28288548/upregulated-glutathione-transferase-omega-1-correlates-with-progression-of-urinary-bladder-carcinoma
#7
Tatjana Djukic, Tatjana Simic, Marija Pljesa-Ercegovac, Marija Matic, Sonja Suvakov, Vesna Coric, Dejan Dragicevic, Ana Savic-Radojevic
OBJECTIVES: Newly discovered glutathione transferase omega 1 (GSTO1-1) plays an important role in the glutathionylation cycle, a significant mechanism of protein function regulation. GSTO1-1 expression pattern has not been studied in transitional cell carcinoma (TCC), as yet. METHODS: A total of 56 TCC tumor and corresponding non-tumor specimens were investigated. Glutathione content and thioltransferase activity were measured spectrophotometrically. Protein-glutathione mixed disulfides were measured fluorimetrically...
March 13, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28287017/oxidative-stress-and-gsts-genetic-polymorphisms-in-medical-staff-professionally-exposed-to-ionizing-radiation
#8
Hajer Doukali, Ghada Ben Salah, Latifa Hamdaoui, Mounira Hajjaji, Mouna Tabebi, Leila Ammar-Keskes, Mohamed-Elarbi Masmoudi, Hassen Kamoun
PURPOSE: Ionizing radiation (IR) is considered as a diagnostic and therapeutic tool in medicine. However, chronic occupational exposure of medical staff to IR may affect the antioxidant status and, as result, DNA damage and cancers as well. The objective of our study was to evaluate the oxidative stress profile caused by IR in 29 Tunisian medical staff from radiology and radiotherapy departments, and to find an association between the GSTM1null, GSTT1null, and GSTP1 Ile105Val polymorphisms and oxidative stress biomarkers...
March 13, 2017: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/28284893/gstm1-genotype-is-an-independent-prognostic-factor-in-clear-cell-renal-cell-carcinoma
#9
Vesna M Coric, Tatjana P Simic, Tatjana D Pekmezovic, Gordana M Basta-Jovanovic, Ana R Savic-Radojevic, Sanja M Radojevic-Skodric, Marija G Matic, Sonja R Suvakov, Dejan P Dragicevic, Tanja M Radic, Zoran M Dzamic, Marija S Pljesa-Ercegovac
PURPOSE: Owing to dual functionality of cytosolic glutathione S-transferases (GSTs), they might affect both the development and the progression of renal cell carcinoma (RCC). However, the data on the prognostic value of GST polymorphism in patients with RCC are scarce. Hence, we evaluated the effect of GST gene variants on both the risk of RCC development and the postoperative prognosis in patients with clear cell RCC (ccRCC). METHODS: GST genotypes were determined in 305 patients with RCC and 326 matched controls, whereas the overall survival was evaluated in patients with ccRCC only...
March 8, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28278696/association-of-gstp1-inactivating-polymorphism-with-acute-myeloid-leukemia-and-its-specific-chromosomal-abnormalities
#10
Aggeliki Daraki, Sophia Zachaki, Faidra Rosmaraki, Marina Kalomoiraki, Vassiliki Aleporou-Marinou, Constantina Sambani, Panagoula Kollia, Kalliopi N Manola
No abstract text is available yet for this article.
March 2, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28264803/maternal-and-infant-genetic-variants-maternal-periconceptional-use-of-selective-serotonin-reuptake-inhibitors-and-risk-of-congenital-heart-defects-in-offspring-population-based-study
#11
Wendy N Nembhard, Xinyu Tang, Zhuopei Hu, Stewart MacLeod, Zachary Stowe, Daniel Webber
Objective To evaluate whether the association between maternal periconceptional use of selective serotonin reuptake inhibitors (SSRIs) and increased risk of congenital heart defects in offspring is modified by maternal or infant genetic variants in folate, homocysteine, or transsulfuration pathways.Design Population based study. DNA from mothers, fathers, and infants was genotyped with an Illumina GoldenGate custom single nucleotide polymorphism panel. A hybrid design based on a log linear model was used to calculate relative risks and Bayesian false discovery probabilities (BFDP) to identify polymorphisms associated with congenital heart defects modified by SSRI use...
March 6, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28259080/passive-smoking-and-influenza-like-illness-in-housewives-a-perspective-of-gene-susceptibility
#12
Bin Wang, Wenhua Huo, Qun Lu, Zhenjiang Li, Yingying Liu, Dan Zhao, Zhiwen Li
Relation between influenza-like illness (ILI) and passive smoking remains a debate of subject. We aimed to determine an association of passive smoking with ILI risk of housewives in North China, and the modification effects of gene polymorphisms related to the metabolisms of smoking pollutants. We included 379 housewives for a cross-sectional study in Shanxi Province, China, including 118 with ILI frequency of "≥1 times per year" as the case group and 261 with ILI frequency of "<1 time per year" in the past 10 years as the control group...
February 16, 2017: Chemosphere
https://www.readbyqxmd.com/read/28254657/the-diverse-roles-of-glutathione-associated-cell-resistance-against-hypericin-photodynamic-therapy
#13
Theodossis A Theodossiou, Cathrine E Olsen, Marte Jonsson, Andreas Kubin, John S Hothersall, Kristian Berg
The diverse responses of different cancers to treatments such as photodynamic therapy of cancer (PDT) have fueled a growing need for reliable predictive markers for treatment outcome. In the present work we have studied the differential response of two phenotypically and genotypically different breast adenocarcinoma cell lines, MCF7 and MDA-MB-231, to hypericin PDT (HYP-PDT). MDA-MB-231 cells were 70% more sensitive to HYP PDT than MCF7 cells at LD50. MCF7 were found to express a substantially higher level of glutathione peroxidase (GPX4) than MDA-MB-231, while MDA-MB-231 differentially expressed glutathione-S-transferase (GSTP1), mainly used for xenobiotic detoxification...
February 24, 2017: Redox Biology
https://www.readbyqxmd.com/read/28222232/dietary-total-antioxidant-capacity-in-early-school-age-and-subsequent-allergic-disease
#14
Anna Gref, Susanne Rautiainen, Olena Gruzieva, Niclas Håkansson, Inger Kull, Göran Pershagen, Magnus Wickman, Alicja Wolk, Erik Melén, Anna Bergström
BACKGROUND: Dietary antioxidant intake has been hypothesized to influence the development of allergic diseases, however, few prospective studies have investigated this association. OBJECTIVE: Our aim was to study the association between total antioxidant capacity (TAC) of the diet at age 8 years and the subsequent development of asthma, rhinitis and sensitization to inhalant allergens between 8 and 16 years, and to assess potential effect modification by known risk factors...
February 21, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28219722/regulation-and-control-of-nitric-oxide-no-in-macrophages-protecting-the-professional-killer-cell-from-its-own-cytotoxic-arsenal-via-mrp1-and-gstp1
#15
REVIEW
Z Kovacevic, S Sahni, H Lok, M J Davies, D A Wink, D R Richardson
We recently demonstrated that a novel storage and transport mechanism for nitric oxide (NO) mediated by glutathione-S-transferase P1 (GSTP1) and multidrug resistance protein 1 (MRP1/ABCC1), protects M1-macrophage (M1-MØ) models from large quantities of endogenous NO. This system stores and transports NO as dinitrosyl-dithiol-iron complexes (DNICs) composed of iron, NO and glutathione (GSH). Hence, this gas with contrasting anti- and pro-tumor effects, which has been assumed to be freely diffusible, is a tightly-regulated species in M1-MØs...
February 17, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28215799/comprehensive-understanding-of-pm2-5-on-gene-and-microrna-expression-patterns-in-zebrafish-danio-rerio-model
#16
Junchao Duan, Yang Yu, Yang Li, Li Jing, Man Yang, Ji Wang, Yanbo Li, Xianqing Zhou, Mark R Miller, Zhiwei Sun
PM2.5 is a major public health concern and some severe diseases have been attributed to exposure to PM2.5. However, a comprehensive understanding of gene and microRNA expression patterns induced by PM2.5 is missing. The objective of this study was to evaluate the toxicity of PM2.5 via genome-wide transcriptional analysis in the model teleost fish, zebrafish (Danio rerio). Gene ontology analysis revealed that the most impact gene functional categories induced by PM2.5 included oxidation-reduction process, transport, response to xenobiotic stimulus, response to chemical stimulus and metabolic process...
May 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28212715/novel-biomarkers-of-heart-failure
#17
A Savic-Radojevic, M Pljesa-Ercegovac, M Matic, D Simic, S Radovanovic, T Simic
Although substantial improvements have been made in majority of cardiac disorders, heart failure (HF) remains a major health problem, with both increasing incidence and prevalence over the past decades. For that reason, the number of potential biomarkers that could contribute to diagnosis and treatment of HF patients is, almost exponentially, increasing over the recent years. The biomarkers that are, at the moment, more or less ready for use in everyday clinical practice, reflect different pathophysiological processes present in HF...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28212552/association-between-single-nucleotide-polymorphisms-in-adrb2-gnb3-and-gstp1-genes-and-high-altitude-pulmonary-edema-hape-in-the-chinese-han-population
#18
Yongjun He, Lijun Liu, Pengcheng Xu, Na He, Dongya Yuan, Longli Kang, Tianbo Jin
High altitude pulmonary edema (HAPE) occurs mainly under conditions such as high altitude, rapid ascent, or hypoxia. Previous studies suggest that ADRB2, GNB3, TH, and GSTP1 polymorphisms are associated with various lung diseases. We evaluated whether those polymorphisms are associated with the risk of HAPE in a Chinese Han population. ADRB2, GNB3, TH and GSTP1 polymorphisms were genotyped using a Sequenom MassARRAY. Logistic regression, adjusted for age and gender, was used to evaluate the association between the genotypes and the risk of HAPE by computing odds ratios (ORs) and 95% confidence intervals (95% CIs)...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212397/a-targeted-gene-expression-platform-allows-for-rapid-analysis-of-chemical-induced-antioxidant-mrna-expression-in-zebrafish-larvae
#19
Margaret G Mills, Evan P Gallagher
Chemical-induced oxidative stress and the biochemical pathways that protect against oxidative damage are of particular interest in the field of toxicology. To rapidly identify oxidative stress-responsive gene expression changes in zebrafish, we developed a targeted panel of antioxidant genes using the Affymetrix QuantiGene Plex (QGP) platform. The genes contained in our panel include eight putative Nrf2 (Nfe2l2a)-dependent antioxidant genes (hmox1a, gstp1, gclc, nqo1, prdx1, gpx1a, sod1, sod2), a stress response gene (hsp70), an inducible DNA damage repair gene (gadd45bb), and three reference genes (actb1, gapdh, hprt1)...
2017: PloS One
https://www.readbyqxmd.com/read/28208751/oxidative-stress-related-genetic-variants-may-modify-associations-of-phthalate-exposures-with-asthma
#20
I-Jen Wang, Wilfried J J Karmaus
Background: Phthalate exposure may increase the risk of asthma. Little is known about whether oxidative-stress related genes may alter this association. First, this motivated us to investigate whether genetic polymorphisms of the oxidative-stress related genes glutathione S-transferase Mu 1 (GSTM1), glutathione S-transferase pi 1 (GSTP1), superoxide dismutase 2 (SOD2), catalase (CAT), myeloperoxidase (MPO), and EPHX1 in children are associated with phthalate urine concentrations. Second, we addressed the question whether these genes may affect the influence of phthalates on asthma...
February 8, 2017: International Journal of Environmental Research and Public Health
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