Category: Diabetes

Glucose-dependent insulinotropic polypeptide (GIP[1–42]) increases glucagon levels in the presence of normal-to-low plasma glucose concentrations in individuals with type 1 diabetes (T1D), suggesting its potential use as a safeguard against hypoglycemia. We investigated the dose-dependent effects of exogenous full-length GIP[1–42] and its truncated variant GIP[1–30]NH2 on glucagon concentrations during insulin-induced hypoglycemia in individuals with T1D. […]

Female protection against cardiometabolic disease wanes after menopause, concomitant with a transition toward the male-like pattern of visceral adiposity. Since recruitment of adipose progenitor cells (APCs) to support adipose expansion is depot-specific and thought to maintain metabolic homeostasis, sex differences in the capacity for APC differentiation were explored as a mechanism underlying female cardiometabolic protection. […]

Diabetic retinopathy (DR), a major complication of diabetes that causes blindness, is characterized by hyperglycemia-induced vascular dysfunction of incompletely defined mechanisms. Our study demonstrated glycolytic pathway activation in a DR rat model, which led to lactate accumulation and elevated pan lysine lactylation. Reduced lactate levels ameliorate vascular dysfunction. Global lactylome analysis of rat retinal tissues […]

We conducted a cross-sectional study to explore the interplay between β-cell function and peripheral insulin resistance in latent autoimmune diabetes in adults (LADA) compared with type 2 diabetes. Thirty-one people with LADA were matched for sex, BMI, and disease duration with 31 people with type 2 diabetes. Insulin resistance was estimated using established surrogate indexes, […]

Active Charcot neuroarthropathy (CN) remains difficult to predict. This hypothesis-generating article proposes a deliberately restricted, testable model in which a clinically meaningful fall in HbA1c may temporally coincide with active CN in a subset of people with diabetes, established neuropathy, and a vulnerable foot. The signal is based on a sequence of observations—an initial case […]

Diabetes is a major risk factor for severe periodontitis. This is partly due to impaired wound healing associated with concomitant failure to resolve inflammation and chronic infection. Studies from the Joslin Medalist Cohort, people with >50 years of type 1 diabetes, have reported that protective factors exist to delay the onset of severe retinopathy, nephropathy, […]

Reduction in intestinal type 3 innate lymphoid cells (ILC3) frequency is associated with type 1 diabetes (T1D) pathogenesis in humans and in animal models. The current study showed that, after T1D induction by multiple–low-dose streptozotocin in male C57BL/6 mice, ILC3 were reduced in both blood and pancreas and produced less IL-22 and IL-2, and a […]

Diabetic kidney disease (DKD) and diabetic cardiomyopathy continue to drive excess morbidity and mortality in diabetes, underscoring a critical gap between mechanistic insight and clinical translation. Growth differentiation factor-15 (GDF-15), a stress-inducible cytokine of the transforming growth factor-β superfamily, has emerged as a critical biomarker and putative modulator of metabolic inflammation. Yet the field remains […]

Diabetic retinopathy (DR) is a predominant cause of vision impairment among working-age individuals, with a subset of patients responding poorly to current treatments. This study investigated alterations in double-stranded DNA (dsDNA) levels in the aqueous humor and retinal pigment epithelium (RPE) dysfunction in DR patients, exploring the potential role of the cyclic GMP-AMP synthase (cGAS)–STING […]

We investigated whether lowering dietary carbohydrate content and glycemic index (GI) levels altered deep lipidomic profiles and whether these changes were associated with improved diurnal postprandial glucose response (PPGR). In the OmniCarb trial, 59 adults completed 5-week controlled feeding interventions (low carbohydrate/low GI vs. high carbohydrate/high GI) and 12-h meal tests. Comprehensive lipidomic profiling was […]