نتایج جستجو برای: transferase m1

تعداد نتایج: 48428  

Journal: :Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 1999
R S Houlston

Interindividual differences in lung cancer susceptibility may be mediated in part through polymorphic variability in the bioactivation of procarcinogens. GSTM1 status has been extensively studied in this context as a lung cancer risk factor, although published studies have produced conflicting results. To clarify the impact of GSTM1 status on lung cancer risk a meta-analysis of 23 case-control ...

Journal: :Blood 2004
Alok Srivastava Balasubramanian Poonkuzhali Ramachandran V Shaji Biju George Vikram Mathews Mammen Chandy Rajagopal Krishnamoorthy

Hepatic venoocclusive disease (HVOD) in bone marrow transplantation (BMT) is attributed to toxicity of cytoreductive agents, especially busulfan and cyclophosphamide, in the conditioning therapy. Busulfan, as well as the metabolites of cyclophosphamide, are conjugated with glutathione (GSH), catalyzed by enzymes of the glutathione S-transferase (GST) family. To assess the impact of polymorphism...

Journal: :Asian Pacific journal of cancer prevention : APJCP 2011
Vinod Kumar A Krishna Murthy K P Suresh

BACKGROUND Polymorphic variations in GSTM1 and GSTT1 have been implicated as risk factors for various cancers. A number of studies conducted to assess their association with susceptibility to laryngeal carcinomas have yielded inconsistent and inconclusive results. In the present study, the possible association of laryngeal cancer risk with GSTM1 and GSTT1 null genotypes was explored by a meta a...

Journal: :Acta biochimica Polonica 2016
Asem Metwally Abo-Shanab Mohamed Ali El-Desouky Naglaa Mohamed Kholoussi Ghada Youssef El-Kamah Iman Aly Helwa Abdelgawad Ali Fahmi

UNLABELLED This work was carried out to investigate the role of Glutathione S-Transferase M1 (GSTM1) null genotype frequency in prognosis of β-thalassemia, and to detect the correlation between GSTM1 null genotype and appearance of cardiac complications in β-thalassemia. MATERIALS AND METHODS The studied groups in the present work were divided to three groups (group I: 20 healthy subjects, gr...

Journal: :BMJ 1993
A K Daly D J Thomas J Cooper W R Pearson D E Neal J R Idle

Journal: :Molecular Vision 2008
Khaled K. Abu-Amero Jose Morales Gamal H. Mohamed Mazen N. Osman Thomas M. Bosley

PURPOSE Glutathione S-transferases (GSTs) are a family of enzymes that inactivate xenobiotics and endogenous end products formed as secondary metabolites during oxidative stress. In humans, GSTT1 and GSTM1 deletion genotypes (T0M1, T1M0, and T0M0) are associated with a variety of pathologic processes including certain ophthalmologic diseases. METHODS We compared the prevalence of GSTT1 and GS...

Journal: :Environmental Health Perspectives 1998
R J Srám

Genotypes responsible for interindividual differences in ability to activate or detoxify genotoxic agents are recognized as biomarkers of susceptibility. Among the most studied genotypes are human glutathione transferases. The relationship of genetic susceptibility to biomarkers of exposure and effects was studied especially in relation to the genetic polymorphism of glutathione S-transferase M...

2014
Fatemeh Kazemi Safa Gholamreza Shahsavari Reza Zare Abyaneh

OBJECTIVES Glaucoma is the second leading cause of blindness and it is related to oxidative stress based on numerous studies. Glutathione S-transferases (GSTs) are members of multigenic family, which have important role in cells as an antioxidant. In the present study, we examined the polymorphism of GSTT1 and GSTM1 deletion genotypes (T0M1, T1M0, and T0M0) in 100 Glaucoma patients (41with prim...

Journal: :American journal of epidemiology 2002
Lawrence S Engel Emanuela Taioli Ruth Pfeiffer Montserrat Garcia-Closas Pamela M Marcus Qing Lan Paolo Boffetta Paolo Vineis Herman Autrup Douglas A Bell Robert A Branch Jürgen Brockmöller Ann K Daly Susan R Heckbert Ivan Kalina Daehee Kang Takahiko Katoh Amalia Lafuente Henry J Lin Marjorie Romkes Jack A Taylor Nathaniel Rothman

Smoking is a known risk factor for bladder cancer. The product of the GSTM1 gene, glutathione S-transferase M1 (GSTM1), is involved in the detoxification of polycyclic aromatic hydrocarbons found in tobacco smoke; a homozygous deletion of this gene in approximately 50% of Caucasians and Asians results in a lack of GSTM1 enzyme activity. Most studies examining the relation between bladder cancer...

2011
Abdel Halim Salem Alaeddin Yaqoob Muhalab Ali Shailandra Handu Raouf Fadel Marwan Abu-Hijleh Wassim Almawi

Deletion polymorphisms for the glutathione S-transferase (GST) gene are associated with increased risk of cancer, and are implicated in detoxifying mutagenic electrophilic compounds. GST Polymorphic variants were reported for different populations. The aim of this study was to investigate the frequencies of GSTM1 and GSTT1 null genotypes among Bahraini, Lebanese and Tunisian Arabs. GST genotypi...

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