This study investigated whether MTHFR C677T, A1298C
and G1793A polymorphisms modified clear cell renal cell carcinoma (CCRCC) risk independently as well as in combination with serum total homocysteine (Hcy) and folate levels.\n\nMaterials and methods: A case control study of 152 cases (men) and 304 age-matched healthy controls was conducted in one geographical area of Iran. Genotyping of MTHFR gene polymorphisms was carried out using a polymerase chain reaction restriction fragment length polymorphism technique. Serum levels of total Hcy, folate and vitamin B12 were also determined.\n\nResults: The MTHFR 677T and 1298C allele frequencies were 42.8 and 47.4% in cases, compared with 33.7 and 33.1% in controls. After controlling for confounding factors, a significant increase in CCRCC risk was found among carriers of the 677CT genotype QNZ solubility dmso Apoptosis Compound Library price compared with those with the 677CC genotype (odds ratio 2.21, 95% confidence interval 1.31-3.76), with a significant trend (P=0.014). Statistically significant
odds ratios were also found in patients homozygous for MTHFR C677T, who have a 1.58-fold higher risk of developing CCRCC (95% confidence interval = 1.21-2.44; P=0.024). Compared with the MTHFR 677CC genotype, the odds ratio (95% confidence interval) for the MTHFR 677TT genotype was 6.18 (95% confidence interval = 4.75-8.34) for stage IV cancer and 4.68 (95% confidence interval = 2.72-6.54) for grade 3 CCRCC (both P=0.0001). After adjustment for selected variants, the MTHFR 1298AC SB273005 mw genotype showed a significantly increased risk of CCRCC compared with the wild-type (odds ratio = 3.71, 95% confidence interval = 2.22-5.33; P=0.001), and the 1298C allele carrier showed a positive association with the risk of CCRCC compared with the wild-type (odds
ratio = 3.9, 95% confidence interval = 2.55-6.02; P=0.001). Furthermore, subjects carrying at least one copy of the variant allele showed a 4.4 times increased risk of developing CCRCC than their control counterparts (odds ratio = 4.40, 95% confidence interval = 2.41-6.72; P=0.0001). There was not a significant interaction between MTHFR polymorphisms and serum levels of total Hcy and folate in increasing the risk of CCRCC.\n\nConclusions: Our results provide evidence that the MTHFR polymorphisms might contribute to increased CCRCC risk in men. (C) 2011 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved.”
“SETTING: Kinshasa, Democratic Republic of Congo.\n\nOBJECTIVE: To identify programmatic interventions for improved survival in patients receiving treatment for tuberculosis (TB) at primary care clinics.\n\nDESIGN: Retrospective cohort of adult patients initiating anti-tuberculosis treatment between January 2006 and May 2007.