O6-methylguanine DNA methyltransferase activity in diabetic patients

被引:7
|
作者
Akçay, T
Dinçer, Y
Çelebi, N
Ilkova, H
机构
[1] Istanbul Univ, Cerrahpasa Med Sch, Dept Biochem, Istanbul, Turkey
[2] Cekmece Nucl Res & Training Ctr, Istanbul, Turkey
[3] Cerrahpasa Med Sch, Dept Internal Med, Div Endocrinol Metab & Diabet, Istanbul, Turkey
关键词
O-6-methylguanine; O-6-methylguanine DNA methyltransferase; leukocyte; diabetes mellitus; HbA(1c);
D O I
10.1016/S0168-8227(03)00063-9
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
In the present study, we evaluated O-6-methylguanine-DNA methyltransferase (MGMT) activity in diabetic patients. The study was performed on 27 patients with Type 1 diabetes, and 42 with Type 2 diabetes. Patients with complications were excluded from the study. 36 non-diabetic volunteers, non-smokers who do not consume alcoholic beverage, were chosen from the medical staff as control subjects. MGMT activity was measured by the transfer of radiolabeled methyl groups from a prepared methylguanine-DNA substrate to the enzyme fraction of leukocyte extract. Leukocyte MGMT activity was significantly reduced in both Type 1 and Type 2 diabetes patients as compared with control subjects (P < 0.001). The present study demonstrates decreased MGMT activity in leukocytes from patients with Type 1 and Type 2 diabetes. (C) 2003 Elsevier Science Ireland Ltd. All rights reserved.
引用
收藏
页码:1 / 6
页数:6
相关论文
共 50 条
  • [1] Evaluation of O6-methylguanine DNA methyltransferase activity in patients with gastric cancer
    Dinçer, Y
    Akçay, T
    Tortum, OB
    Alademir, Z
    Önen, S
    Dogusoy, G
    [J]. ONCOLOGY RESEARCH, 2003, 13 (04) : 205 - 209
  • [2] Fluorescent chemosensors for monitoring the activity of O6-methylguanine DNA methyltransferase
    Beharry, Andrew
    Kool, Eric
    [J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2015, 250
  • [3] KINETICS OF REPAIR OF O6-METHYLGUANINE IN DNA BY O6-METHYLGUANINE-DNA METHYLTRANSFERASE INVITRO AND INVIVO
    SCICCHITANO, D
    PEGG, AE
    [J]. BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 1982, 109 (03) : 995 - 1001
  • [4] Repair and removal of azoxymethane-induced O6-methylguanine in rat colon by O6-methylguanine DNA methyltransferase and apoptosis
    Nyskohus, Laura S.
    Watson, Amanda J.
    Margison, Geoffrey P.
    Le Leu, Richard K.
    Kim, Susan W.
    Lockett, Trevor J.
    Head, Richard J.
    Young, Graeme P.
    Hu, Ying
    [J]. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS, 2013, 758 (1-2) : 80 - 86
  • [5] Pancreatic O6-methylguanine DNA methyltransferase level in streptozotocin-induced diabetic rats
    Dinçer, Y
    Çakatay, U
    Kayali, R
    Yilmaz, KA
    Telci, A
    Çelebi, N
    Hatemi, H
    Bagriaçik, N
    Akçay, T
    [J]. BIOMEDICAL RESEARCH-TOKYO, 2002, 23 (05): : 203 - 207
  • [6] Polymorphisms in O6-methylguanine DNA methyltransferase and endometrial cancer risk
    Han, Jiali
    Hankinson, Susan E.
    De Vivo, Immaculata
    [J]. CARCINOGENESIS, 2006, 27 (11) : 2281 - 2285
  • [7] The regulation of O6-methylguanine DNA methyltransferase by ionizing radiation.
    Vallis, K
    Park, L
    [J]. RADIOTHERAPY AND ONCOLOGY, 2004, 72 : S69 - S69
  • [8] O6-Methylguanine DNA methyltransferase activatable photosensitizers for cancer therapeutics
    Walker, Maria
    Beharry, Andrew
    [J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2019, 257
  • [9] Polymorphisms in O6-methylguanine DNA methyltransferase and breast cancer risk
    Han, Jiali
    Tranah, Gregory J.
    Hankinson, Susan E.
    Samson, Leona D.
    Hunter, David J.
    [J]. PHARMACOGENETICS AND GENOMICS, 2006, 16 (07): : 469 - 474
  • [10] FACTORS INFLUENCING THE REPAIR OF THE MUTAGENIC LESION O6-METHYLGUANINE IN DNA BY HUMAN O6-METHYLGUANINE-DNA METHYLTRANSFERASE
    LIEM, LK
    WONG, CW
    LIM, A
    LI, BFL
    [J]. JOURNAL OF MOLECULAR BIOLOGY, 1993, 231 (04) : 950 - 959