scholarly journals AGT A-20C (rs5050) gene polymorphism and ulcer occurrence in patients treated with low-dose aspirin: a case-control study / Polimorfismul AGT A-20C și ulcerele gastro-duodenale la pacienții sub tratament cu aspirină în doze antiagregante: studiu caz-control

Author(s):  
Anca Negovan ◽  
Septimiu Voidăzan ◽  
Monica Pantea ◽  
Valeriu Moldovan ◽  
Simona Bataga ◽  
...  

AbstractGenetic factors may play a role in prediction of gastrointestinal side effects of aspirin, one of the most used drugs worldwide. We aim to determine a possible correlation between AGT A-20C (rs5050) gene polymorphism and gastro-duodenal ulcer in patients taking low-dose aspirin, adjusted for clinical and histological characteristics.Results. We enrolled 211 patients stratified according to AGT A-20C genotype: 122 AA, 83 AC and 6 CC patients. There were no significant differences regarding demographical and clinical parameters, except for the frequency of ulcers (4%, 8.4% respective 50%, p=0.03), endoscopic bleeding signs (12.3%, 14.5% respective 50%, p=0.0001) and the frequency of gastritis in biopsy (63.9%, 54.2% respective 16.7%, p=0.03) in genotype groups. When we compared ulcer and non-ulcer group, variant homozygous CC genotype carried an increased risk for ulcer (OR:9.66, 95% CI: 1.46-63.7, p=0.04) than AA group, as well as variant C allele compared with normal A allele (OR: 2.12, 95% CI: 1.07-4.63, p=0.04). On multivariate analysis, variant homozygous CC genotype AGT A-20C showed an OR: 12.32 (95% CI:1.40 -108.13, p=0.02) for ulcer, while H. pylori infection (OR:2.40, 95% CI:1.18 -6.54, p=0.04) and concurrent use of non-steroidal anti-inflammatory drugs (NSAIDs) (OR:1.31, 95% CI:1.07 - 2.27, p=0.05) remained predictors for ulcer in aspirin consumers.Conclusions. Variant C allele and variant homozygous CC genotype AGT A-20C, infection with H. pylori and NSAIDs co-treatment are risk factors for gastro-duodenal ulcer in low-dose aspirin consumers. The variant homozygous CC genotype AGT A-20C patients treated with LDA are more prone to have reactive gastropathy and bleeding ulcers in a population with a high prevalence of H. pylori infection

2009 ◽  
Vol 136 (5) ◽  
pp. A-609
Author(s):  
Francis K.L. Chan ◽  
Jessica Ching ◽  
Bing Yee Suen ◽  
Justin Wu ◽  
Vincent W. Wong ◽  
...  

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Yashuo Wang ◽  
Wei Wang ◽  
Bin Wang ◽  
Yunyang Wang

Background. Our aim was to assess the risk of gastrointestinal (GI) hemorrhage associated with diabetes among patients taking low-dose aspirin (≤325 mg/day). Methods. A systematic search was conducted for publication in English and Chinese using term equivalents for “GI hemorrhage”, “aspirin”, and “diabetes mellitus” up till April 2020. Electronic databases include PUBMED, EMBASE, Cochrane Library databases, Chinese National Knowledge Infrastructure (CNKI), Wanfang Database, and VIP Database. Two independent authors searched databases and reviewed abstracts for comprehensive studies keeping adequate study quality. Data of weighted odds ratios were statistically evaluated and potential bias was checked. Results. Among 446 publications, eight case-control researches, including 1601 patients, were deemed for this meta-analysis. Patients with diabetes were associated with a higher risk of GI hemorrhage than patients without diabetes: the summary ORs were 3.10 (95% CI, 2.35–4.09). The heterogeneity of the reports was not significant (Chi2=3.39, P=0.85; I2=0%). Conclusion. The meta-analysis showed that aspirin users with diabetes were more likely to have GI hemorrhage. Hence, when treating diabetics with aspirin, the increased risk of GI bleeding should be taken in consideration.


2018 ◽  
Vol 113 (Supplement) ◽  
pp. S1595
Author(s):  
Koji Takahashi ◽  
Takashi Kawai ◽  
Yuki Aoki ◽  
Akihiko Sugimoto ◽  
Shinʼichi Takahashi

2012 ◽  
Vol 47 (12) ◽  
pp. 1290-1297 ◽  
Author(s):  
Katsunori Iijima ◽  
Nobuyuki Ara ◽  
Yasuhiko Abe ◽  
Tomoyuki Koike ◽  
Toshimitsu Iwabuchi ◽  
...  

CNS Spectrums ◽  
2005 ◽  
Vol 10 (7) ◽  
pp. 580-587 ◽  
Author(s):  
Ann K. Helms ◽  
Steven J. Kittner

AbstractThe risks of ischemic stroke, intracerebral hemorrhage, and subarachnoid hemorrhage are not increased in the 9 months of gestation except for a high risk in the 2 days prior and 1 day postpartum. The remaining 6 weeks postpartum also have an increased risk of ischemic stroke and intracerebral hemorrhage, though less than the peripartum period. Although there are some rare causes of stroke specific to pregnancy and the postpartum period, eclampsia, cardiomyopathy, postpartum cerebral venous thrombosis, and, possibly, paradoxical embolism warrant special consideration. The diagnostic and therapeutic approaches to stroke during pregnancy and the postpartum period are similar to the approaches in the nonpregnant woman with some minor modifications based on consideration of the welfare of the fetus. There is a theoretical risk of magnetic resonance imaging exposure during the first and second trimester but the benefit to the mother of obtaining the information may outweigh the risk. Available evidence suggests that low-dose aspirin (<150 mg/day) during the second and third trimesters is safe for both mother and fetus. Postpartum use of low-dose aspirin by breast-feeding mother is also safe for infant. While proper counseling is imperative, a history of pregnancy-related stroke should not be a contraindication for subsequent pregnancy.


2017 ◽  
Vol 35 (4_suppl) ◽  
pp. 527-527
Author(s):  
Joseph Sung ◽  
Kelvin Kf Tsoi

527 Background: Aspirin, commonly used for prevention of cardiovascular and cerebrovascular diseases, is well-known to protect against colorectal cancer (CRC) development but increase risk of gastrointestinal bleeding (GIB). Few large-scale studies have compared the benefit and risk of long-term aspirin usage. This cohort study aims to evaluate the use of low-dose aspirin to prevent CRC and the risk of GIB associated with the aspirin use. Methods: A population-based clinical dataset was used to compare incidence and mortality of CRC and GIB patients receiving low-dose aspirin with sex-and-age matched controls (in 1:2 ratio). Patients with aspirin≤6 months were excluded. Clinical data of 206,243 aspirin users (mean dose 80 mg/day, mean duration 7.7 years) and 482,966 non-users were included. All patients must have at least 10-year follow up on clinical outcome. Results: Among aspirin users 5,776 (2.80%) were diagnosed with CRC; 2,097 (1.02%) died of the malignancy. 16,483 (3.41%) non-users were diagnosed with CRC; 7,963 (1.65%) died of CRC. Using the cox-proportional hazard regression, aspirin usage showed a modest but significant reduction in CRC mortality (HR = 0.65; 95% CI = 0.62 to 0.69). On the other hand, 11,187 (5.42%) aspirin users developed GIB, and 841 (0.41%) died. 15,186 (3.14%) non-users developed GIB, and 1,682 patients (0.35%) died. Aspirin users showed modest but significant increased risk of GIB-related mortality (HR = 1.24; 95% CI = 1.14 to 1.35). Conclusions: The long-term use of low dose aspirin shows preventive effect on CRC, but also increases the associated GIB risk. Considerations of prophylactic use of aspirin should balance the benefit and the risk of this treatment to the target population. [Table: see text]


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