scholarly journals Metformin use is associated with a reduced risk of acute appendicitis in Taiwanese patients with type 2 diabetes mellitus

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chin-Hsiao Tseng

AbstractThis retrospective cohort study used the nationwide database of Taiwan’s National Health Insurance to investigate whether metformin would reduce the risk of acute appendicitis in patients with type 2 diabetes mellitus. We first identified 423,949 patients newly diagnosed of diabetes from 1999 to 2005. After excluding patients having type 1 diabetes mellitus, missing data, previous history of acute appendicitis, aged < 15 years, aged > 80 years and followed up for < 6 months, 338,172 ever users and 21,861 never users of metformin were followed up from January 1, 2006 until December 31, 2011. Incidence of acute appendicitis was estimated for never users, ever users and subgroups (divided by median, tertiles and quartiles, respectively) of dose–response indicators including cumulative duration (months), cumulative dose (mg) and average daily dose (mg/day) of metformin therapy. We used Cox regression incorporated with the inverse probability of treatment weighting using propensity score to estimate the overall hazard ratio for ever versus never users, and the hazard ratios for subgroups of dose–response indicators versus never users. Results showed that new-onset acute appendicitis was diagnosed in 1558 ever users and 179 never users during follow-up. The incidence was 98.15 per 100,000 person-years in ever users and was 189.48 per 100,000 person-years in never users. The overall hazard ratio (95% confidence interval) of 0.514 (0.441–0.600) suggested a lower risk of acute appendicitis associated with metformin use. A dose–response pattern was consistently observed in the analyses of different subgroups of dose–response indicators and the reduced risk associated with metformin use was consistently observed in various sensitivity analyses. An average daily dose of 1000–1500 mg/day can significantly reduce the risk by > 50%. The benefit did not differ between different formulations of metformin, and the estimated hazard ratio for conventional/immediate-release metformin versus never users was 0.516 (0.441–0.603) and was 0.509 (0.421–0.615) for prolonged/slow-release metformin versus never users. It is concluded that metformin use is associated with a reduced risk of acute appendicitis in patients with type 2 diabetes mellitus.

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Minrui Xu ◽  
Mingtao Huang ◽  
Deren Qiang ◽  
Jianxin Gu ◽  
Yong Li ◽  
...  

Purpose. To determine whether hypertriglyceridemic waist (HTGW) and high lipid accumulation product (LAP) preceded the incidence of type 2 diabetes mellitus (T2DM), and to investigate the interactions of HTGW and LAP with other components of metabolic syndrome on the risk of T2DM. Methods. A total of 15,717 eligible participants without baseline T2DM and aged 35 and over were included from a Chinese rural cohort. Cox proportional hazards regression models were used to estimate the association of HTGW and LAP with the incidence of T2DM, and the restricted cubic spline model was used to evaluate the dose-response association. Results. Overall, 867 new T2DM cases were diagnosed after 7.77 years of follow-up. Participants with HTGW had a higher hazard ratio for T2DM (hazard ratio (HR): 6.249, 95% confidence interval (CI): 5.199-7.511) after adjustment for potential confounders. The risk of incident T2DM was increased with quartiles 3 and 4 versus quartile 1 of LAP, and the adjusted HRs (95% CIs) were 2.903 (2.226-3.784) and 6.298 (4.911-8.077), respectively. There were additive interactions of HTGW (synergy index (SI): 1.678, 95% CI: 1.358-2.072) and high LAP (SI: 1.701, 95% CI: 1.406-2.059) with increased fasting plasma glucose (FPG) on the risk of T2DM. Additionally, a nonlinear ( P nonlinear < 0.001) dose-response association was found between LAP and T2DM. Conclusion. The subjects with HTGW and high LAP were at high risk of developing T2DM, and the association between LAP and the risk of T2DM may be nonlinear. Our study further demonstrates additive interactions of HTGW and high LAP with increased FPG on the risk of T2DM.


Author(s):  
Arnaud D. Kaze ◽  
Prasanna Santhanam ◽  
Sebhat Erqou ◽  
Rexford S. Ahima ◽  
Alain Bertoni ◽  
...  

Background Microvascular disease (MVD) is a potential contributor to the pathogenesis of diabetes mellitus–related cardiac dysfunction. However, there is a paucity of data on the link between MVD and incident heart failure (HF) in type 2 diabetes mellitus. We examined the association of MVD with incident HF in adults with type 2 diabetes mellitus. Methods and Results A total of 4095 participants with type 2 diabetes mellitus and free of HF were assessed for diabetes mellitus–related MVD including nephropathy, retinopathy, or neuropathy at baseline in the Look AHEAD (Action for Health in Diabetes) study. Incident HF events were prospectively assessed and adjudicated using hospital and death records. Cox models were used to generate hazard ratios and 95% CIs for HF. Of 4095 participants, 34.8% (n=1424) had MVD, defined as the presence of ≥1 of nephropathy, retinopathy, or neuropathy at baseline. Over a median of 9.7 years, there were 117 HF events. After adjusting for relevant confounders, participants with MVD had a 2.5‐fold higher risk of incident HF than those without MVD (hazard ratio, 2.54; 95% CI, 1.73–3.75). This association remained significant after additional adjustment for interval development of coronary artery disease (hazard ratio, 2.42; 95% CI, 1.64–3.57). The hazard ratios for HF by type of MVD were 2.22 (95% CI, 1.51–3.27), 1.30 (95% CI, 0.72–2.36), and 1.33 (95% CI, 0.86–2.07) for nephropathy, retinopathy, and neuropathy, respectively. CONCLUSIONS MVD is associated with an excess HF risk in individuals with type 2 diabetes mellitus after adjusting for other known risk factors. Our findings underscore the contribution of MVD to the development of diabetes mellitus–related HF. REGISTRATION: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT00017953.


2003 ◽  
Vol 49 (1) ◽  
pp. 25-27
Author(s):  
N. T. Starkova ◽  
V. V. Dolgov ◽  
A. L. Davydov ◽  
A. P. Roitman ◽  
L. Yu. Baranova ◽  
...  

The effects of lipostat and maninil on carbohydrate and lipid metabolisms and their hormonal regulators were studied in 36 obese patients aged 50- 70 years who had type 2 diabetes mellitus concurrent with dyslipidemia. A course of therapy with lipostat in a daily dose of 20 mg for 3 months was shown to lead to nor­malization of lipid metabolism, to diminished glycemia and hy- perinsulinemia, and to an increase in fasting plasma somatotrop­ic hormone levels to normal values, these were not observed in the control group.


2020 ◽  
Author(s):  
Juan Pan ◽  
Rui Tong ◽  
Qing Deng ◽  
Yanni Tian ◽  
Ning Wang ◽  
...  

Abstract Propose: We explored the effect of SOCS2 polymorphisms on the development of type 2 diabetes mellitus (T2DM) and diabetic complications.Methods: The subjects consisted of 500 T2DM patients and 501 healthy volunteers. Five variants in SOCS2 were genotyped by Agena MassARRAY system. Logistic regression analysis was utilized to calculate the odds ratio (OR) and 95% confidence intervals (95% CI).Results: Rs3825199 (OR = 1.44, p = 0.007), rs11107116 (OR = 1.39, p = 0.014) and rs10492321 (OR = 1.48, p = 0.004) had the increased T2DM risk. Moreover, the contribution of SOCS2 polymorphisms to T2DM risk was associated with age, gender, smoking and drinking and BMI. SOCS2 variants also had the reduced risk for T2DM patients with diabetic nephropathy, diabetic retinopathy and coronary heart disease.Conclusions: This study firstly reported that rs3825199, rs11107116 and rs10492321 in SOCS2 conferred to the increased risk for T2DM occurrence in the Chinese Han population.


2021 ◽  
Vol 11 ◽  
Author(s):  
Chin-Hsiao Tseng

Background: Metformin has anti-inflammatory property and reduces the risk of varicose vein in our previous study.Aim: To investigate the risk of hemorrhoid, another common disease involving the hemorrhoidal venous plexus, in ever vs. never users of metformin in patients with type 2 diabetes mellitus.Methods: This is a population-based retrospective cohort study. Patients with new-onset type 2 diabetes mellitus during 1999–2005 were enrolled from Taiwan’s National Health Insurance. All patients who were alive on January 1, 2006 were followed up until December 31, 2011. Analyses were conducted in both an unmatched cohort of 152,347 ever users and 19,523 never users and in 19,498 propensity score (PS)-matched pairs of ever and never users. Traditional Cox regression and Cox regression incorporated with the inverse probability of treatment weighting (IPTW) using the PS were used to estimate hazard ratios.Results: New-onset hemorrhoid was diagnosed in 8,211 ever users and 2025 never users in the unmatched cohort and in 1,089 ever users and 2022 never users in the matched cohort. The hazard ratio for ever vs. never users derived from the traditional Cox regression was 0.464 (95% confidence interval: 0.440–0.488) in the unmatched cohort; and was 0.488 (0.453–0.525) in the matched cohort. In the IPTW models, the hazard ratio was 0.464 (0.442–0.487) in the unmatched cohort and was 0.492 (0.457–0.530) in the matched cohort. A dose-response pattern was observed while comparing the tertiles of cumulative duration, cumulative dose and defined daily dose of metformin therapy to never users in all analyses. A risk reduction of approximately 40–50% was consistently observed in various sensitivity analyses.Conclusion: Chronic therapy with metformin in patients with type 2 diabetes mellitus is associated with a lower risk of hemorrhoid.


Sign in / Sign up

Export Citation Format

Share Document