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COMPARATIVE STUDY
JOURNAL ARTICLE
RESEARCH SUPPORT, N.I.H., EXTRAMURAL
RESEARCH SUPPORT, NON-U.S. GOV'T
Clopidogrel IBS Patients Have Higher Incidence of Gastrointestinal Symptoms Influenced by Age and Gender.
Digestive Diseases and Sciences 2017 October
BACKGROUND: Clopidogrel is an irreversible antagonist of P2Y12 receptors (P2Y12 Rs) used as an antiplatelet drug to reduce risk of thrombosis. P2Y12 Rs are expressed in gastrointestinal (GI) tract where they might regulate GI function.
AIM: To evaluate if blockade of P2Y12 Rs by clopidogrel is associated with higher incidence of GI symptoms in patients with irritable bowel syndrome (IBS).
METHODS: A retrospective analysis of our institutional database was conducted for a 13-year period. IBS patients were identified, and their demographics, GI symptoms and clopidogrel therapy were collected. Logistic regression models were used to characterize symptoms in clopidogrel versus no-clopidogrel IBS-groups, adjusting for Age and Sex differences. An additional study characterized the P2Y12 R distribution in human gut.
RESULTS: The search identified 7217 IBS patients (6761 no-clopidogrel/456 clopidogrel). There were a higher proportion of patients with GI symptoms on clopidogrel (68%) compared to controls (60%, p = 0.0011) that were Females (70 vs. 60%, p = 0.0003) not Males (61 vs. 60%; p = 0.8312). In Females, clopidogrel was associated with higher incidence of GI symptoms (Age adjusted; p < 0.0001) for pain, constipation, gastroparesis (p ≤ 0.0001) and psychogenic pain (p = 0.0006). Age or Sex (adjusted models) influenced one or more GI symptoms (i.e., pain, p < 0.0001; constipation, p < 0.0001/p = 0.008; diarrhea, flatulence, p = 0.01). P2Y12 R immunoreactivity was abundant in human ENS; glial-to-neuron ratio of P2Y12 Rs expressed in Females ≫ Males.
CONCLUSIONS: Irreversible blockade of P2Y12 R by clopidogrel is associated with higher incidence of GI symptoms in Female IBS patients, although Age or Sex alone contributes to symptomatology. Prospective studies can determine clinical implications of P2Y12 Rs in IBS.
AIM: To evaluate if blockade of P2Y12 Rs by clopidogrel is associated with higher incidence of GI symptoms in patients with irritable bowel syndrome (IBS).
METHODS: A retrospective analysis of our institutional database was conducted for a 13-year period. IBS patients were identified, and their demographics, GI symptoms and clopidogrel therapy were collected. Logistic regression models were used to characterize symptoms in clopidogrel versus no-clopidogrel IBS-groups, adjusting for Age and Sex differences. An additional study characterized the P2Y12 R distribution in human gut.
RESULTS: The search identified 7217 IBS patients (6761 no-clopidogrel/456 clopidogrel). There were a higher proportion of patients with GI symptoms on clopidogrel (68%) compared to controls (60%, p = 0.0011) that were Females (70 vs. 60%, p = 0.0003) not Males (61 vs. 60%; p = 0.8312). In Females, clopidogrel was associated with higher incidence of GI symptoms (Age adjusted; p < 0.0001) for pain, constipation, gastroparesis (p ≤ 0.0001) and psychogenic pain (p = 0.0006). Age or Sex (adjusted models) influenced one or more GI symptoms (i.e., pain, p < 0.0001; constipation, p < 0.0001/p = 0.008; diarrhea, flatulence, p = 0.01). P2Y12 R immunoreactivity was abundant in human ENS; glial-to-neuron ratio of P2Y12 Rs expressed in Females ≫ Males.
CONCLUSIONS: Irreversible blockade of P2Y12 R by clopidogrel is associated with higher incidence of GI symptoms in Female IBS patients, although Age or Sex alone contributes to symptomatology. Prospective studies can determine clinical implications of P2Y12 Rs in IBS.
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