Genetic susceptibility and risk of gastric cancer in a human population of Cauca, Colombia.
Keywords:
gastric cancer, glutathione S-transferase, polymorphisms, Colombia
Abstract
Gastric cancer (GC) is the main cause of mortality by cancer in Colombia. Glutathione S-transferase (GST) enzymes are involved in the detoxification of many environmental carcinogens. The homozygous deletions of glutathione S-transferase M1 (GSTM1-0) and glutathione S-transferase T1 (GSTT1-0) have been associated with several types of cancer. The risk to develop GC has been associated with environmental factors and Helicobacter pylori infection. The tumor necrosis factor (TNF-alpha) and its levels are increased in patients infected with H. pylori. A G/ A transition in the position -308 of the promoter of the TNF-alpha has been related in several studies to an increased expression of the gene and is associated with susceptibility to GC. The association of these polymorphisms with GC and the interaction with other risk factors (life style) were investigated. Blood samples were obtained from 46 GC patients and 96 controls. The logistic regression model was used to obtain the odds ratio (OR) and their 95% confidence intervals. These statistics established the association between the enzymatic polymorphisms and GC and between other independent factors and GC. The frequency of the TNF-alpha polymorphism in people infected with H. pylori was 18% in the GC population and 7% in the control group. This transition was not significantly associated with H. pylori infection and GC. The frequencies of the deletion polymorphisms for patients and controls were as follows: GSTM1 65.2% and 37.5%; GSTT1 17.4% and 14.6%. These results suggested that the GSTM1 deletion polymorphism was associated with an increased risk of gastric cancer (OR of 5.5; 95%CI, 1.7-17.2). Furthermore, other risk factors such as H. pylori infection (OR 5.58, CI 1.8-17.2), smoking (OR 6.70, CI 2.2-20.3) and alcohol intake (OR 3.27, CI 1.1-9.4) were associated with GC.Downloads
Download data is not yet available.
How to Cite
1.
Torres MM, Acosta CP, Sicard DM, Groot de Restrepo H. Genetic susceptibility and risk of gastric cancer in a human population of Cauca, Colombia. Biomed. [Internet]. 2004 Jun. 1 [cited 2024 Aug. 18];24(2):153-62. Available from: https://revistabiomedica.org/index.php/biomedica/article/view/1261
Some similar items:
- Constanza Pardo, Ricardo Cendales, Survival analysis of cervical cancer patients , Biomedica: Vol. 29 No. 3 (2009)
- Raúl Murillo, Ricardo Cendales, Carolina Wiesner, Marion Piñeros, Sandra Tovar, Effectiveness of cytology-based cervical cancer screening in the Colombian health system , Biomedica: Vol. 29 No. 3 (2009)
- Sandra Lorena Girón, Julio César Mateus, Fabián Méndez, Impact of an open waste disposal site on the occurrence of respiratory symptoms and on health care costs of children , Biomedica: Vol. 29 No. 3 (2009)
- José Joaquín Carvajal, Ligia Inés Moncada, Mauricio Humberto Rodríguez, Ligia del Pilar Pérez, Víctor Alberto Olano, Characterization of Aedes albopictus (Skuse, 1894) (Diptera:Culicidae) larval habitats near the Amazon River in Colombia , Biomedica: Vol. 29 No. 3 (2009)
- Andrés Páez, Gloria Rey, Carlos Agudelo, Alvaro Dulce, Edgar Parra, Hernando Díaz-Granados, Damaris Heredia, Luis Polo, Outbreak of urban rabies transmitted by dogs in Santa Marta, northern Colombia , Biomedica: Vol. 29 No. 3 (2009)
- Patricia Escobar, Katherine Paola Luna, Indira Paola Hernández, César Mauricio Rueda, María Magdalena Zorro, Simon L. Croft, In vitro susceptibility of Trypanosoma cruzi strains from Santander, Colombia, to hexadecylphosphocholine (miltefosine), nifurtimox and benznidazole , Biomedica: Vol. 29 No. 3 (2009)
- Gustavo Pradilla, Julio César Mantilla, Reynaldo Badillo, Human rabies encephalitis by a vampire bat bite in an urban area of Colombia , Biomedica: Vol. 29 No. 2 (2009)
- Mauricio Beltrán, María Cristina Navas, María Patricia Arbeláez, Jorge Donado, Sergio Jaramillo, Fernando De la Hoz, Cecilia Estrada, Lucía del Pilar Cortés, Amalia de Maldonado, Gloria Rey, Seroprevalence of hepatitis B virus and human immunodeficiency virus infection in a population of multiply-transfused patients in Colombia , Biomedica: Vol. 29 No. 2 (2009)
- Rosa Magdalena Uscátegui, Adriana M. Correa, Jaime Carmona-Fonseca, Changes in retinol, hemoglobin and ferritin concentrations in Colombian children with malaria , Biomedica: Vol. 29 No. 2 (2009)
- Claudia M.E. Romero-Vivas, Luis Eduardo Castro, Lila Visbal, Ana María Santos, Esther Díaz, Cutaneous myiasis by Cochliomyia hominivorax (Coquerel) (Díptera Calliphoridae) in Hospital Universidad del Norte, Soledad, Atlántico , Biomedica: Vol. 29 No. 1 (2009)
Published
2004-06-01
Issue
Section
Original articles
Article metrics | |
---|---|
Abstract views | |
Galley vies | |
PDF Views | |
HTML views | |
Other views |