scholarly journals Effect of incretin-based therapies on cancers of digestive system among 101 595 patients with type 2 diabetes mellitus: a systematic review and network meta-analysis combining 84 trials with a median duration of 30 weeks

2019 ◽  
Vol 7 (1) ◽  
pp. e000728
Author(s):  
Sanbao Chai ◽  
Shuqing Yu ◽  
Zhirong Yang ◽  
Shanshan Wu ◽  
Le Gao ◽  
...  

ObjectivesTo evaluate the risk of cancers of digestive system with incretin-based therapies among patients with type 2 diabetes mellitus.Research design and methodsMedline, Embase, Cochrane Library and ClinicalTrials.gov databases were searched for randomized controlled clinical trials that compared incretin-based drugs with placebo or other antidiabetic drugs. Paired reviewers independently screened citations, extracted data and assessed risk of bias of included studies. Network meta-analysis was performed, followed by subgroup analysis. The Grading of Recommendations Assessment, Development and Evaluation system was used to assess the quality of evidence.ResultsA total of 84 studies (n=101 595) involving cancers of digestive system were identified (a median follow-up of 30 weeks). The risk of cancers of digestive system with incretin-based therapies was comparable with insulin (OR: 0.86, 95% CI 0.27 to 2.69), metformin (OR: 0.32, 95% CI 0.07 to 1.38), sodium-glucose co-transporter 2 (OR: 5.26, 95% CI 0.58 to 47.41), sulfonylureas (OR: 1.27, 95% CI 0.68 to 2.39), thiazolidinediones (OR: 0.42, 95% CI 0.13 to 1.42), alpha-glucosidase inhibitors (OR: 2.98, 95% CI 0.12 to 73.80), and placebo (OR: 0.87, 95% CI 0.71 to 1.05). The results of subgroup analysis based on the type of digestive system cancers indicated that incretin-based therapies did not increase the risk of gastrointestinal cancers, respectively. The results of subgroup analysis based on age, duration, mean HbA1c, trial duration, and sample size did not indicate the risk of digestive system cancers.ConclusionsModerate to high Grading of Recommendations Assessment, Development and Evaluation evidence suggests that incretin-based therapies were not associated with an increased risk of cancer of digestive system in patients with type 2 diabetes mellitus.

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Yi-Bing Hu ◽  
En-De Hu ◽  
Rong-Quan Fu

Background. Type 2 diabetes mellitus (T2DM) patients are involved closely with cancer. This work aims to conduct a systematic review and network meta-analysis (NMA) to examine the effect of different types of statins on cancer incidence in patients with T2DM. Methods. We systematically searched the Cochrane Library, PubMed, Embase, and Wanfang databases from January 1999 to March 2017. We performed a pairwise meta-analysis to estimate the pooled ratios (ORs) and 95% confidence intervals (CIs). A NMA was performed to compare different types of statins. Results. Seven publications were included. In pairwise meta-analysis, the incidence of cancer in T2DM patients was reduced when simvastatin, atorvastatin, pravastatin, fluvastatin, lovastatin, rosuvastatin, and pitavastatin were used. In the result of NMA, the usage of simvastatin (RR 0.30 and 95% CI 0.16–0.56), atorvastatin (RR 0.29 and 95% CI 0.09–0.88), pravastatin (RR 0.34 and 95% CI 0.12–0.93), fluvastatin (RR 0.27 and 95% CI 0.09–0.83), rosuvastatin (RR 0.22 and 95% CI 0.10–0.49), and pitavastatin (RR 0.33 and 95% CI 0.20–0.57) was superior to the nonstatin groups. When compared with six other statins, rosuvastatin appeared to be the best one. Conclusions. Different statins can reduce the risk of cancer in patients with T2DM. Our analyses suggest that rosuvastatin may be more effective than others.


BMJ Open ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. e020062 ◽  
Author(s):  
Xiaosu Bai ◽  
Zhiming Liu ◽  
Zhisen Li ◽  
Dewen Yan

ObjectivesSeveral patients with type 2 diabetes mellitus (T2DM) have depressive disorders. Whether insulin treatment was associated with increased risk of depression remains controversial. We performed a meta-analysis to evaluate the association of insulin therapy and depression.DesignA meta-analysis.MethodsWe conducted a systematic search of PubMed, PsycINFO, Embase and the Cochrane Library from their inception to April 2016. Epidemiological studies comparing the prevalence of depression between insulin users and non-insulin users were included. A random-effects model was used for meta-analysis. The adjusted and crude data were analysed.ResultsTwenty-eight studies were included. Of these, 12 studies presented with adjusted ORs. Insulin therapy was significantly associated with increased risk of depression (OR=1.41, 95% CI 1.13 to 1.76, p=0.003). Twenty-four studies provided crude data. Insulin therapy was also associated with an odds for developing depression (OR=1.59, 95% CI 1.41 to 1.80, p<0.001). When comparing insulin therapy with oral antidiabetic drugs, significant association was observed for adjusted (OR=1.42, 95% CI 1.08 to 1.86, p=0.008) and crude (OR=1.61, 95% CI 1.35 to 1.93, p<0.001) data.ConclusionsOur meta-analysis confirmed that patients on insulin therapy were significantly associated with the risk of depressive symptoms.


2021 ◽  
Author(s):  
xin wei ◽  
yu bai ◽  
zhuo wang ◽  
xiaohong zheng ◽  
zening jin ◽  
...  

Abstract Background: Dipeptidyl peptidase-4 inhibitors (DPP-4i) provide a unique anti-hyperglycemic effect through regulating incretin peptides in type 2 diabetes mellitus (T2DM) patients that are inadequately controlled with insulin therapy. The aim of this study was to investigate the impact of DPP-4i on leptin concentrations in subjects with T2DM. Methods: Randomized controlled trials (RCTs) with comparators were identified through systematically searching PubMed, Embase, and Cochrane library. Quantitative analysis was performed with a fixed or random-effects model according to heterogeneity. Publication bias was evaluated by using the standard methods for sensitivity analysis. Results: Ten trials with 698 patients with T2DM were included. Pooled analysis demonstrated that DPP-4i did not significantly change leptin concentrations (1.31 ng/mL, 95% CI, -0.48 to 3.10). DPP-4i exerted no stronger effect on modulating leptin levels compared to active comparators (0.21 ng/mL, 95% CI, -1.37 to 1.78). Meta-analysis was powerful and stable after sensitivity analysis.Conclusions: DDP-4i did not modulate leptin concentrations and exerted no stronger effect than traditional antidiabetic agents.


2020 ◽  
Vol 26 (44) ◽  
pp. 5732-5738
Author(s):  
Qian Wu ◽  
Yi-Lin Dan ◽  
Yi-Sheng He ◽  
Kun Xiang ◽  
Yu-Qian Hu ◽  
...  

Background: Meteorin-like (Metrnl) is a newly identified adipokine implicated in the pathogenesis of type 2 diabetes mellitus (T2DM), yet data on the circulating levels of Metrnl in patients with T2DM are controversial. To derive a more precise estimation on circulating Metrnl levels in T2DM patients, we conducted this meta-analysis. Methods: The existing studies on the circulating levels of Metrnl in patients with T2DM published up to 16 January 2020 were comprehensively retrieved from PubMed, Web of Science, EMBASE, and The Cochrane library database. Pooled standard mean difference (SMD) with 95% confidence interval (CI) was calculated using random-effects model. Heterogeneity was assessed and quantified by Cochrane’s Q and I2 statistic. All statistical analyses were performed using Stata 12.0 software. Results: Nine studies with 867 T2DM patients and 831 normal glucose tolerance (NGT) controls were included in the final analysis according to the inclusion criteria. No significant difference in circulating Metrnl levels was found between T2DM patients and NGT individuals (pooled SMD = -0.429, 95% CI = -1.077 to 0.219). Compared to controls, circulating Metrnl levels were significantly higher in the subgroups with BMI <25 kg/m2, using plasma sample and patient sample size ≥100, while circulating Metrnl levels were significantly lower in subgroups with age ≤50 years and homeostatic model assessment for insulin resistance (HOMA-IR) ≥4. Conclusions: This meta-analysis indicates no significant change in circulating Metrnl levels in T2DM patients. However, this result may be influenced by age, BMI, sample type, HOMA-IR and patients sample size. Further longitudinal studies are warranted to offer more insights into the relationship between Metrnl and T2DM.


2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Abraham Nigussie Mekuria ◽  
Yohanes Ayele ◽  
Assefa Tola ◽  
Kirubel Minsamo Mishore

Background. Accumulating evidence suggests that patients with type 2 diabetes mellitus and hyperinsulinemia are at an increased risk of developing malignancies. It remains to be fully elucidated whether the use of metformin, an insulin sensitizer, and/or sulfonylureas, insulin secretagogues, affects cancer incidence in subjects with type 2 diabetes mellitus. Objective. A systematic review and meta-analysis was performed to compare the risk of cancer incidence associated with monotherapy with metformin compared with monotherapy with sulfonylureas in type 2 diabetes mellitus patients. Methods. Search was performed throughout MEDLINE/PubMed, EMBASE, Google Scholar, Cochrane Central Register of Controlled Trials (CENTRAL), and ClinicalTrials.gov up until December 2018. In this meta-analysis, each raw data (unadjusted) and study-specific (adjusted) relative risks (RRs) was combined and the pooled unadjusted and adjusted RRs with the 95% CI were calculated using the random-effects model with inverse-variance weighting. Heterogeneity among the studies was evaluated using I2 statistics. Publication bias was evaluated using the funnel plot asymmetry test. The Newcastle-Ottawa scale (NOS) was used to assess the study quality. Results. A total of 8 cohort studies were included in the meta-analysis. Obvious heterogeneity was noted, and monotherapy with metformin was associated with a lower risk of cancer incidence (unadjusted RR=0.74, 95% CI: 0.55-0.99, I2=97.89%, p<0.00001; adjusted RR=0.76, 95% CI: 0.54–1.07, I2=98.12%, p<0.00001) compared with monotherapy with sulfonylurea, using the random-effects model with inverse-variance weighting. Conclusions. According to this review, the monotherapy with metformin appears to be associated with a lower risk of cancer incidence than monotherapy with sulfonylurea in patients with type 2 diabetes. This analysis is mainly based on cohort studies, and our findings underscore the need for large-scale randomized controlled trials to establish the effect of metformin monotherapy, relative to sulfonylureas monotherapy on cancer.


BMJ Open ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. e029073 ◽  
Author(s):  
Xianzhe Wang ◽  
Jiabin Liu ◽  
Lijin Huang ◽  
Hai Zeng ◽  
Guoxin He ◽  
...  

IntroductionType 2 diabetes mellitus (T2DM) is a substantial health problem worldwide. Pre-diabetic state is associated with increased risk for the development of diabetes. There are various pharmacological therapies with glucose-lowering activity for diabetes prevention. Of those, most are being compared with placebo instead of active agents. The relative effects and safety of different glucose-lowering drugs still remain uncertain. To address this gap, we will conduct a systematic review and network meta-analysis (NMA) to evaluate comparative efficacy and safety of glucose-lowering agents for T2DM prevention in patients with pre-diabetes.Methods and analysisPubMed, the Cochrane library and Embase will be searched from inception to December 2019 for relevant randomised controlled trials (RCTs) that examined anti-diabetic drugs for diabetes prevention in patients with pre-diabetes. Two reviewers working independently will screen titles, abstracts and full papers. Data extraction will also be completed by two independent authors. The primary outcome will be the incidence of T2DM in patients with pre-diabetes at baseline. Secondary outcomes will include the achievement of normoglycaemia, all-cause mortality, cardiovascular mortality and hypoglycaemic event. Pairwise meta-analysis and NMA will be conducted for each outcome using a frequentist random-effects model. Additionally, subgroup analyses will also be performed. The comparison-adjusted funnel plot will be used to assess publication bias. The overall quality of evidence will be rated with the Grading of Recommendations Assessment, Development and Evaluation framework. Data analysis will be conducted using Stata V.14.0.Ethics and disseminationEthics approval is not required. We plan to submit the results of this study to a peer-review journal.PROSPERO registration numberCRD42019119157.


Author(s):  
Jiawei Qin ◽  
Kaize Zhao ◽  
Yannan Chen ◽  
Shuai Guo ◽  
Yue You ◽  
...  

The effect of exercise intervention on balance capacity among type 2 diabetes mellitus (T2DM) patients has not been evaluated. The objective of this systematic review and meta-analysis is to investigate the effect of exercise intervention on balance capacity among T2DM patients compared to the control group (usual care, waitlist, no-treatment, education). We conducted a comprehensive literature search through PubMed, EMBASE, Physiotherapy Evidence Database (PEDro), Cochrane library, Web of Science (WOS) from inception to August 2020. The literature language was limited to English. Randomized controlled trials (RCTs) or quasi-experimental (Q-E) trials that examined the effect of exercise intervention on balance capacity among T2DM patients were included. We used the standard methods of meta-analysis to evaluate the outcomes of exercise intervention for balance capacity of T2DM patients. A total of 14 trials (11 RCTs and 3 Q-E trials) involving 883 participants were eligible. The meta-analysis of some studies demonstrated that exercise intervention could significantly improve Berg Balance Scale (BBS) (MD = 2.56; 95%CI [0.35, 4.77]; P = .02), SLST (Single Leg Stance Test) under the eyes-open (EO) condition (MD = 3.63; 95%CI [1.79, 5.47]; P = .0001) and eyes-close (EC) condition (MD = 0.41; 95%CI [0.10, 0.72]; P = .01) compared to control group. There was no significant difference in Time Up and Go Test (TUGT) (MD = −0.75; 95%CI [−1.69, 0.19]; P = .12) and fall efficacy (SMD = −0.44; 95%CI [−0.86, −0.01]; P = .05). Narrative review of some studies indicated that exercise intervention could improve postural stability measured by Sensory Organization Test (SOT) and Center of Pressure (COP) variables, etc. This systematic review and meta-analysis summarized that exercise intervention could improve balance capacity in T2DM patients. However, further studies with high quality are required to evaluate its effect.


2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Huapeng Lu ◽  
Qinling Yang ◽  
Fang Tian ◽  
Yi Lyu ◽  
Hairong He ◽  
...  

Objective. To study the association between sleep duration and the incidence of type 2 diabetes mellitus (T2DM) and to provide a theoretical basis for the prevention of T2DM through a meta-analysis. Methods. PubMed, Web of Science, Scopus, Embase, Cochrane Library, ProQuest, CNKI, Wanfang, VIP, and SINOMED were searched from their inception until May 2020. All cohort studies on the relationship between sleep duration and T2DM in adults were included. According to the inclusion and exclusion criteria, two authors independently assessed the literature and extracted the data. Metaregression and publication bias were evaluated, and sensitivity and meta-analyses were conducted with RevMan 5.3. Results. A total of 17 studies were collected, involving 737002 adults. The incidence of T2DM was 4.73% in short sleep duration (SSD) ( t ≤ 6   h ), 4.39% in normal sleep duration (NSD) ( 6   h < t < 9   h ), and 4.99% in long sleep duration (LSD) ( t ≥ 9   h ). The meta-analysis demonstrated that SSD increased the risk of T2DM compared with NSD ( RR = 1.22 , 95% CI: 1.15-1.29, P < 0.001 ), LSD increased the risk of T2DM compared with NSD ( RR = 1.26 , 95% CI: 1.15-1.39, P < 0.001 ), and the risk of T2DM has no significant difference between SSD and LSD ( RR = 0.97 , 95% CI: 0.89-1.05, P = 0.41 ). The sensitivity of each study was robust and the publication bias was weak. Conclusion. SSD or LSD can increase the risk of T2DM.


2021 ◽  
Author(s):  
Jia Zhang ◽  
Xi Liu ◽  
Liling Wei ◽  
Qiong Zeng ◽  
Kun Lin

BACKGROUND Type 2 diabetes mellitus(T2DM)is one of the most common chronic disease worldwide, and the number of people with T2DM is expected to exceed 9% of the world’s population by 2035, which puts heavy pressure on patients and the health-care system. Recently, self-management of the diabetes had been making great progress with the development of the advance technology. There were many new self-management interventions, including computer-based deliver, telephone deliver and so on. OBJECTIVE The network meta‐analysis was designed to comprehensively evaluate the efficacy of self-management for T2DM in present study. METHODS Keywords “Type 2 diabetes mellitus” and “self-management intervention” were used as searching strategies through PubMed, Cochrane library, MEDLINE, and EMBASE databases (inception–May2, 2020). The search criteria were RCT studies and reported in English language. The primary outcome was the change in HbA1c from baseline. We perform the pairwise meta-analysis and Bayesian NMA to investigate the efficacy of self-management in patients with T2DM, applying Revman 5.3, Stata 14.0 software and GeMTC 0.14.3. RESULTS Thirty-five studies met the inclusion criteria and qualified for the ultimate meta-analysis. Our meta-analysis displayed three advance self-management for T2DM, including computer-based deliver, telephone deliver and telemonitoring deliver. All of these self-management measures had been proven to be more effective than placebo in blood glucose management, and computer-based deliver is most likely to become the most efficient way among them. CONCLUSIONS Compared with other self-management, the computer-based deliver was the most effective self-management for T2DM.


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