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Frontiers in Endocrinology 2022Glucagon-like peptide-1 receptor agonists (GLP-1 RAs) and sodium-glucose cotransporter-2 (SGLT-2) inhibitors reduce glycaemia and weight and improve insulin resistance... (Meta-Analysis)
Meta-Analysis
OBJECTIVE
Glucagon-like peptide-1 receptor agonists (GLP-1 RAs) and sodium-glucose cotransporter-2 (SGLT-2) inhibitors reduce glycaemia and weight and improve insulin resistance (IR) different mechanisms. We aim to evaluate and compare the ability of GLP-1 RAs and SGLT-2 inhibitors to ameliorate the IR of nonalcoholic fatty liver disease (NAFLD) patients.
DATA SYNTHESIS
Three electronic databases (Medline, Embase, PubMed) were searched from inception until March 2021. We selected randomized controlled trials comparing GLP-1 RAs and SGLT-2 inhibitors with control in adult NAFLD patients with or without T2DM. Network meta-analyses were performed using fixed and random effect models, and the mean difference (MD) with corresponding 95% confidence intervals (CI) were determined. The within-study risk of bias was assessed with the Cochrane collaborative risk assessment tool RoB.
RESULTS
25 studies with 1595 patients were included in this network meta-analysis. Among them, there were 448 patients, in 6 studies, who were not comorbid with T2DM. Following a mean treatment duration of 28.86 weeks, compared with the control group, GLP-1 RAs decreased the HOMA-IR (MD [95%CI]; -1.573[-2.523 to -0.495]), visceral fat (-0.637[-0.992 to -0.284]), weight (-2.394[-4.625 to -0.164]), fasting blood sugar (-0.662[-1.377 to -0.021]) and triglyceride (- 0.610[-1.056 to -0.188]). On the basis of existing studies, SGLT-2 inhibitors showed no statistically significant improvement in the above indicators. Compared with SGLT-2 inhibitors, GLP-1 RAs decreased visceral fat (-0.560[-0.961 to -0.131]) and triglyceride (-0.607[-1.095 to -0.117]) significantly.
CONCLUSIONS
GLP-1 RAs effectively improve IR in NAFLD, whereas SGLT-2 inhibitors show no apparent effect.
SYSTEMATIC REVIEW REGISTRATION
PROSPERO https://www.crd.york.ac.uk/PROSPERO/, CRD42021251704.
Topics: Adult; Diabetes Mellitus, Type 2; Glucagon-Like Peptide 1; Humans; Insulin Resistance; Network Meta-Analysis; Non-alcoholic Fatty Liver Disease; Sodium-Glucose Transporter 2 Inhibitors; Triglycerides
PubMed: 35909522
DOI: 10.3389/fendo.2022.923606 -
Molecular Psychiatry Jul 2023Impairment of insulin action and metabolic dysregulation have traditionally been associated with schizophrenia, although the molecular basis of such association remains... (Meta-Analysis)
Meta-Analysis
Impairment of insulin action and metabolic dysregulation have traditionally been associated with schizophrenia, although the molecular basis of such association remains still elusive. The present meta-analysis aims to assess the impact of insulin action manipulations (i.e., hyperinsulinemia, hypoinsulinemia, systemic or brain insulin resistance) on glutamatergic, dopaminergic, γ-aminobutyric acid (GABA)ergic, and serotonergic pathways in the central nervous system. More than one hundred outcomes, including transcript or protein levels, kinetic parameters, and other components of the neurotransmitter pathways, were collected from cultured cells, animals, or humans, and meta-analyzed by applying a random-effects model and adopting Hedges'g to compare means. Two hundred fifteen studies met the inclusion criteria, of which 180 entered the quantitative synthesis. Significant impairments in key regulators of synaptic plasticity processes were detected as the result of insulin handlings. Specifically, protein levels of N-methyl-D-aspartate receptor (NMDAR) subunits including type 2A (NR2A) (Hedges' g = -0.95, 95%C.I. = -1.50, -0.39; p = 0.001; I = 47.46%) and 2B (NR2B) (Hedges'g = -0.69, 95%C.I. = -1.35, -0.02; p = 0.043; I = 62.09%), and Postsynaptic density protein 95 (PSD-95) (Hedges'g = -0.91, 95%C.I. = -1.51, -0.32; p = 0.003; I = 77.81%) were found reduced in insulin-resistant animal models. Moreover, insulin-resistant animals showed significantly impaired dopamine transporter activity, whereas the dopamine D2 receptor mRNA expression (Hedges'g = 3.259; 95%C.I. = 0.497, 6.020; p = 0.021; I = 90.61%) increased under insulin deficiency conditions. Insulin action modulated glutamate and GABA release, as well as several enzymes involved in GABA and serotonin synthesis. These results suggest that brain neurotransmitter systems are susceptible to insulin signaling abnormalities, resembling the discrete psychotic disorders' neurobiology and possibly contributing to the development of neurobiological hallmarks of treatment-resistant schizophrenia.
Topics: Humans; Animals; Schizophrenia; Insulin; Neurobiology; Disks Large Homolog 4 Protein; Receptors, N-Methyl-D-Aspartate; gamma-Aminobutyric Acid; Neurotransmitter Agents
PubMed: 37085712
DOI: 10.1038/s41380-023-02065-4 -
Heart Failure Reviews Jan 2024Heart failure (HF) with preserved ejection fraction (HFpEF) is a common condition in clinical practice, affecting more than half of patients with HF. HFpEF is associated...
Heart failure (HF) with preserved ejection fraction (HFpEF) is a common condition in clinical practice, affecting more than half of patients with HF. HFpEF is associated with morbidity and mortality and with considerable healthcare resource utilization and costs. Therefore, early diagnosis is crucial to facilitate prompt management, particularly initiation of sodium-glucose co-transporter 2 inhibitors. Although European guidelines define HFpEF as the presence of symptoms with or without signs of HF, left ventricular EF ≥ 50%, and objective evidence of cardiac structural and/or functional abnormalities, together with elevated natriuretic peptide levels, the diagnosis of HFpEF remains challenging. First, there is no clear consensus on how HFpEF should be defined. Furthermore, diagnostic tools, such as natriuretic peptide levels and resting echocardiogram findings, are significantly limited in the diagnosis of HFpEF. As a result, some patients are overdiagnosed (i.e., elderly people with comorbidities that mimic HF), although in other cases, HFpEF is overlooked. In this manuscript, we perform a systematic narrative review of the diagnostic approach to patients with HFpEF. We also propose a comprehensible algorithm that can be easily applied in daily clinical practice and could prove useful for confirming or ruling out a diagnosis of HFpEF.
Topics: Aged; Humans; Comorbidity; Echocardiography; Heart Failure; Natriuretic Peptides; Stroke Volume; Ventricular Function, Left
PubMed: 37861854
DOI: 10.1007/s10741-023-10360-z -
Diabetes Care May 2021Results of cardiovascular outcome trials (CVOTs) suggest Asians may derive greater benefit than Whites from newer classes of antihyperglycemic medications. (Meta-Analysis)
Meta-Analysis Review
Meta-analyses of Results From Randomized Outcome Trials Comparing Cardiovascular Effects of SGLT2is and GLP-1RAs in Asian Versus White Patients With and Without Type 2 Diabetes.
BACKGROUND
Results of cardiovascular outcome trials (CVOTs) suggest Asians may derive greater benefit than Whites from newer classes of antihyperglycemic medications.
PURPOSE
To provide summary hazard ratio (HR) estimates for cardiovascular efficacy of sodium-glucose cotransporter 2 inhibitors (SGLT2is) and glucagon-like peptide 1 receptor agonists (GLP-1RAs) stratified by race (Asian vs. White).
DATA SOURCES
A systematic review performed in PubMed from 1 January 2015 to 8 December 2020.
STUDY SELECTION
Randomized placebo-controlled CVOTs of SGLT2is and GLP-1RAs that reported HRs (95% CIs) for ) major adverse cardiovascular event (MACE) in patients with diabetes and ) cardiovascular (CV) death/hospitalization for heart failure (HHF) in patients with HF and reduced ejection fraction (HFrEF).
DATA EXTRACTION AND SYNTHESIS
HRs (95% CIs) for selected outcomes in Asians and Whites were extracted from each trial, adhering to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Random-effects meta-analyses were performed to examine differences between the selected outcomes in Asians versus Whites.
RESULTS
In four SGLT2i trials in type 2 diabetes, the MACE outcome HR (95% CI) in 3,298 Asians versus 20,258 Whites was 0.81 (0.57, 1.04) vs. 0.90 (0.80, 1.00), respectively ( = 0.46). In two SGLT2i trials in patients with HFrEF, the CV death/HHF outcome HR in 1,788 Asians versus 5,962 Whites was 0.60 (0.47, 0.74) vs. 0.82 (0.73, 0.92), respectively ( = 0.01). In six GLP-1RA trials, the MACE outcome HR in 4,195 Asians versus 37,530 Whites was 0.68 (0.53, 0.84) vs. 0.87 (0.81, 0.94), respectively ( = 0.03).
LIMITATIONS
Lack of individual patient-level data, relatively short duration of trial observation, and lack of granular categorization of race within broadly defined Asian subgroups.
CONCLUSIONS
Compared with Whites, Asians may derive greater CV death/HHF benefit from SGLT2is in patients with HFrEF, and MACE benefit from GLP-1RAs in patients with type 2 diabetes.
Topics: Asian People; Cardiovascular Diseases; Diabetes Mellitus, Type 2; Glucagon-Like Peptide-1 Receptor; Heart Failure; Humans; Hypoglycemic Agents; Randomized Controlled Trials as Topic; Sodium-Glucose Transporter 2 Inhibitors; Stroke Volume
PubMed: 33707305
DOI: 10.2337/dc20-3007 -
Diabetes, Obesity & Metabolism Aug 2022Most trials leading to the approval of glucagon-like peptide receptor agonists (GLP-1RAs) and sodium-glucose co-transporter-2 inhibitors (SGLT2is) were primarily...
Non-inferiority and clinical superiority of glucagon-like peptide-1 receptor agonists and sodium-glucose co-transporter-2 inhibitors: Systematic analysis of cardiorenal outcome trials in type 2 diabetes.
AIMS
Most trials leading to the approval of glucagon-like peptide receptor agonists (GLP-1RAs) and sodium-glucose co-transporter-2 inhibitors (SGLT2is) were primarily designed to confirm their non-inferiority to placebo (commonly using an upper 95% confidence limit threshold of 1.3) and, if confirmed, superiority (threshold 1): this asymmetry of margins (1 vs. 1.3) favours the active intervention. We aimed to quantify the probability of clinical superiority of the active treatment by applying the same threshold used to claim non-inferiority.
MATERIALS AND METHODS
We searched PubMed and Cochrane CENTRAL for cardiorenal outcome trials in subjects with type 2 diabetes published before 5 December 2021, to reconstruct from Kaplan-Meier plots individual-level data for the primary outcome or all-cause mortality. We calculated Bayesian posterior densities to obtain the probability for a treatment effect (hazard ratio) <0.769, which is symmetric to the 1.3 threshold (i.e. its reciprocal 1/1.3), emulating a scenario where the active treatment is placebo and placebo is the active treatment.
RESULTS
We extracted data from 27 Kaplan-Meier plots (18 for the primary outcome, nine for mortality). Probabilities of clinical superiority to placebo varied significantly: for GLP-1RAs, from a minimum of 0% to a maximum of 69% for the primary outcome and from 0% to 8% for mortality; corresponding estimates for SGLT2is were 0% to 96% and 0% to 93%. Probabilities were on average greater for SGLT2is, particularly in trials investigating kidney or heart failure outcomes.
CONCLUSIONS
The probability of clinical superiority to placebo varies widely across trials previously reported as showing superiority of GLP-1RAs or SGLT2is compared with placebo. These results showed within- and between-class differences, highlight the drawbacks of a binary interpretation of the results, particularly in the context of the current designs of non-inferiority trials, and have implications for decision makers and future clinical recommendations.
Topics: Bayes Theorem; Cardiovascular Diseases; Diabetes Mellitus, Type 2; Glucagon-Like Peptide-1 Receptor; Glucose; Humans; Hypoglycemic Agents; Sodium; Sodium-Glucose Transporter 2 Inhibitors; Symporters
PubMed: 35491523
DOI: 10.1111/dom.14735 -
Frontiers in Public Health 2023Checkpoint inhibitors (CPIs) can trigger complications related to the autoimmune process such as CPI-triggered diabetes mellitus. The typical treatment for CPI-triggered...
OBJECTIVE
Checkpoint inhibitors (CPIs) can trigger complications related to the autoimmune process such as CPI-triggered diabetes mellitus. The typical treatment for CPI-triggered diabetes is insulin, but a detailed therapeutic method has not yet been established. To prevent severe symptoms and mortality of diabetic ketoacidosis in advanced-stage cancer patients, the establishment of effective treatment of CPI-triggered diabetes, other than insulin therapy, is required.
METHODS
We present a case of a 76-year-old man with CPI-triggered diabetes who was treated with nivolumab and ipilimumab for lung cancer. We also conducted a systematic review of 48 case reports of type 1 diabetes associated with nivolumab and ipilimumab therapy before June 2023.
RESULTS
The patient's hyperglycemia was not sufficiently controlled by insulin therapy, and after the remission of ketoacidosis, the addition of a sodium-glucose transporter (SGLT) 2 inhibitor, dapagliflozin, improved glycemic control. Most of the reported nivolumab/ipilimumab-induced type 1 diabetes was treatable with insulin, but very few cases required additional oral anti-diabetic agents to obtain good glucose control.
CONCLUSION
Although SGLT2 inhibitors have been reported to have adverse effects on ketoacidosis, recent studies indicate that the occurrence of ketoacidosis is relatively rare. Considering the pathological mechanism of CPI-triggered diabetes, SGLT2 inhibitors could be an effective choice if they are administered while carefully monitoring the patient's ketoacidosis.
Topics: Male; Humans; Aged; Nivolumab; Sodium-Glucose Transporter 2 Inhibitors; Ipilimumab; Diabetes Mellitus, Type 1; Diabetic Ketoacidosis; Insulin; Lung Neoplasms
PubMed: 38106883
DOI: 10.3389/fpubh.2023.1264056 -
PloS One 2022This study aimed to compare the efficacies of sodium-glucose cotransporter 2 (SGLT-2) inhibitors, glucagon-like peptide 1 (GLP-1) agonists, and dipeptidyl peptidase 4... (Meta-Analysis)
Meta-Analysis
Association between use of sodium-glucose cotransporter 2 inhibitors, glucagon-like peptide 1 agonists, and dipeptidyl peptidase 4 inhibitors with kidney outcomes in patients with type 2 diabetes: A systematic review and network meta-analysis.
BACKGROUND
This study aimed to compare the efficacies of sodium-glucose cotransporter 2 (SGLT-2) inhibitors, glucagon-like peptide 1 (GLP-1) agonists, and dipeptidyl peptidase 4 (DPP-4) inhibitors on kidney outcomes in patients with type 2 diabetes using network meta-analysis.
METHODS
PubMed, EMBASE, and CENTRAL were searched for studies published up to September 28, 2020. Randomized clinical trials enrolling participants with type 2 diabetes were included, for which SGLT-2 inhibitors, GLP-1 agonists, and DPP-4 inhibitors were compared with either each other, or placebo or no treatment. A network meta-analysis using a Bayesian approach was performed. The primary outcome was composite renal events, and the secondary outcome was acute kidney injury (AKI) events. All research was conducted according to a protocol registered in the PROSPERO database (CRD42020208090).
RESULTS
In total, we retrieved 17 445 studies, of which 98 articles enrolling 186 335 participants were included for the network meta-analysis. For our primary outcome, the network meta-analysis revealed no significant difference between drug classes regardless of baseline factors. However, GLP-1 receptor agonists were most likely ranked best among the three drugs in reducing composite renal events (80%, moderate-quality evidence). Compared with the control groups (OR 0.74, 95% CI 0.62 to 0.87, low-quality evidence), GLP-1 receptor agonists (OR 0.76, 95% CI 0.59 to 0.96, moderate-quality evidence) and with DPP-4 inhibitors (OR 0.67, 95% CI 0.50 to 0.86, low-quality evidence), SGLT-2 inhibitors were associated with a lower risk of AKI events.
CONCLUSIONS
In this network meta-analysis, although none of the three new antidiabetic drug classes reduced the composite renal events in participants with type 2 diabetes, GLP-1 receptor agonists may be more effective. The use of SGLT-2 inhibitors was associated with a lower AKI event risk than DPP-4 inhibitors, GLP-1 agonists, placebo, or no treatment.
Topics: Acute Kidney Injury; Bayes Theorem; Diabetes Mellitus, Type 2; Dipeptidyl-Peptidase IV Inhibitors; Female; Glucagon-Like Peptide-1 Receptor; Glucose; Humans; Hypoglycemic Agents; Kidney; Male; Network Meta-Analysis; Sodium; Sodium-Glucose Transporter 2 Inhibitors
PubMed: 35421174
DOI: 10.1371/journal.pone.0267025 -
BMC Medical Research Methodology Apr 2023With the increased interest in the inclusion of non-randomised data in network meta-analyses (NMAs) of randomised controlled trials (RCTs), analysts need to consider the... (Meta-Analysis)
Meta-Analysis
BACKGROUND
With the increased interest in the inclusion of non-randomised data in network meta-analyses (NMAs) of randomised controlled trials (RCTs), analysts need to consider the implications of the differences in study designs as such data can be prone to increased bias due to the lack of randomisation and unmeasured confounding. This study aims to explore and extend a number of NMA models that account for the differences in the study designs, assessing their impact on the effect estimates and uncertainty.
METHODS
Bayesian random-effects meta-analytic models, including naïve pooling and hierarchical models differentiating between the study designs, were extended to allow for the treatment class effect and accounting for bias, with further extensions allowing for bias terms to vary depending on the treatment class. Models were applied to an illustrative example in type 2 diabetes; using data from a systematic review of RCTs and non-randomised studies of two classes of glucose-lowering medications: sodium-glucose co-transporter 2 inhibitors and glucagon-like peptide-1 receptor agonists.
RESULTS
Across all methods, the estimated mean differences in glycated haemoglobin after 24 and 52 weeks remained similar with the inclusion of observational data. The uncertainty around these estimates reduced when conducting naïve pooling, compared to NMA of RCT data alone, and remained similar when applying hierarchical model allowing for class effect. However, the uncertainty around these effect estimates increased when fitting hierarchical models allowing for the differences in study design. The impact on uncertainty varied between treatments when applying the bias adjustment models. Hierarchical models and bias adjustment models all provided a better fit in comparison to the naïve-pooling method.
CONCLUSIONS
Hierarchical and bias adjustment NMA models accounting for study design may be more appropriate when conducting a NMA of RCTs and observational studies. The degree of uncertainty around the effectiveness estimates varied depending on the method but use of hierarchical models accounting for the study design resulted in increased uncertainty. Inclusion of non-randomised data may, however, result in inferences that are more generalisable and the models accounting for the differences in the study design allow for more detailed and appropriate modelling of complex data, preventing overly optimistic conclusions.
Topics: Humans; Diabetes Mellitus, Type 2; Glucose; Glycated Hemoglobin; Network Meta-Analysis; Randomized Controlled Trials as Topic
PubMed: 37087450
DOI: 10.1186/s12874-023-01925-5 -
Cardiovascular Diabetology Jul 2022Recent studies have shown that sodium-glucose cotransporter-2 inhibitors (SGLT2i) can achieve significant improvement in blood pressure in people with diabetes.... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Recent studies have shown that sodium-glucose cotransporter-2 inhibitors (SGLT2i) can achieve significant improvement in blood pressure in people with diabetes. Furthermore, randomized controlled trials (RCTs) have established that SGLT2i have a cardioprotective effect in adults with heart failure (HF). Therefore, we performed this systematic review an meta-analysis to determine the effect of SGLT2i on blood pressure in patients with HF.
METHODS
We used the Medline, Cochrane Library, Embase, and PubMed databases to identify RCTs (published through to April 29, 2022) that evaluated the effect of SGLT2i on HF. The primary endpoint was defined as change in blood pressure. Secondary composite outcomes were heart rate, hematocrit, body weight, and glycated hemoglobin. The N-terminal pro-brain natriuretic peptide level, Kansas City Cardiomyopathy Questionnaire scores, and estimated glomerular filtration rate were also evaluated.
RESULTS
After a literature search and detailed evaluation, 16 RCTs were included in the quantitative analysis. Pooled analyses showed that SGLT2i were associated with a statistically significant reduction in systolic blood pressure of 1.68 mmHg (95% confidence interval [CI] - 2.7, - 0.66; P = 0.001; I = 45%) but not diastolic blood pressure (mean difference [MD] -1.06 mmHg; 95% CI -3.20, 1.08; P = 0.33; I = 43%) in comparison with controls. Furthermore, SGLT2i decreased body weight (MD - 1.36 kg, 95% CI - 1.68, - 1.03; P < 0.001; I = 61%) and the glycated hemoglobin level (MD - 0.16%, 95% CI - 0.28, -0.04, P = 0.007; I = 91%) but increased hematocrit (MD 1.63%, 95% CI 0.63, 2.62, P = 0.001; I = 100%). There was no significant between-group difference in heart rate (MD - 0.35; 95% CI - 2.05, 1.35, P = 0.69; I = 0).
CONCLUSIONS
SGLT2i decreased systolic blood pressure in patients with HF but had no effect on diastolic blood pressure. These inhibitors may have numerous potentially beneficial clinical effects in patients with HF.
Topics: Adult; Blood Pressure; Body Weight; Diabetes Mellitus, Type 2; Glucose; Glycated Hemoglobin; Heart Failure; Humans; Sodium; Sodium-Glucose Transporter 2 Inhibitors
PubMed: 35879763
DOI: 10.1186/s12933-022-01574-w -
Cells Feb 2023Diabetic and obese patients have a high prevalence of non-alcoholic fatty liver disease (NAFLD). This condition groups a spectrum of conditions varying from simple... (Review)
Review
Diabetic and obese patients have a high prevalence of non-alcoholic fatty liver disease (NAFLD). This condition groups a spectrum of conditions varying from simple steatosis to non-alcoholic steatohepatitis (NASH), with or without fibrosis. Multiple factors are involved in the development of NAFLD. However, details about its pathogenesis and factors that promote the progression to NASH are still missing. Growth hormone (GH) and insulin-like growth factor 1 (IGF-1) regulate metabolic, immune, and hepatic stellate cell functions. Increasing evidence suggests they may have roles in the progression from NAFLD to NASH. Following the PRISMA reporting guidelines, we conducted a systematic review to evaluate all clinical and experimental studies published in the literature correlating GH and IGF-1 to inflammation and fibrosis in NAFLD and NASH. Our results showed that GH and IGF-1 have a fundamental role in the pathogenesis of NASH, acting in slightly different ways to produce a synergic effect. Indeed, GH may mediate its protective effect in the pathogenesis of NASH by regulating lipogenesis pathways, while IGF-1 has the same effect by regulating cholesterol transport. Therefore, they could be used as therapeutic strategies in preventing NAFLD progression to NASH.
Topics: Humans; Non-alcoholic Fatty Liver Disease; Growth Hormone; Insulin-Like Growth Factor I; Insulin; Liver Cirrhosis; Human Growth Hormone; Insulin, Regular, Human; Hepatitis
PubMed: 36831184
DOI: 10.3390/cells12040517