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Diabetology, Volume 7, Issue 4

2026 April - 20 articles

Cover Story: This review explores the biology of G protein-coupled receptors (GPCRs) in pancreatic islets. Through their signaling diversity, GPCRs convert extracellular cues into finely tuned intracellular responses. While research has emphasized internalization-driven signaling, GPCR biogenesis and trafficking to the membrane are equally critical, shaping receptor abundance and function. Hundreds of GPCRs regulate pancreatic β-cell biology, influencing insulin secretion, proliferation, and apoptosis via G protein-dependent and -independent pathways. By linking GPCR biosynthesis, trafficking, and localization to their roles in glucose-stimulated insulin secretion (GSIS), this work fills a critical gap and provides a framework for developing GPCR-targeted therapeutic strategies to preserve β-cell function and improve glucose homeostasis in diabetes. View this paper
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Articles (20)

  • Review
  • Open Access
1 Citations
1,405 Views
37 Pages

Plants of the genus Salacia (Celastraceae) have long been used in traditional medical systems of South and Southeast Asia for the management of diabetes and related metabolic disorders. Modern phytochemical and pharmacological studies have confirmed...

  • Article
  • Open Access
1,998 Views
17 Pages

A Thematic Analysis of Sleep Behavior Self-Regulation in Young Adults with Type 1 Diabetes

  • Madeline Long,
  • Dayna A. Johnson,
  • Youjeong Kang and
  • Stephanie Alisha Griggs

Background/Objectives: Sleep is critical for young adults, particularly those with type 1 diabetes (T1D), who face unique challenges in achieving recommended sleep and diabetes health targets. The purpose of this study guided by the theoretical frame...

(This article belongs to the Special Issue Advances in Sleep Disorders in Patients with Diabetes)
  • Article
  • Open Access
1,601 Views
15 Pages

Trabecular and Cortical Bone and Ossified Vessel Analysis in Rat Tibiae and Femora in a Polygenic Rat Model for Type 2 Diabetes Mellitus

  • Jason McIntire,
  • Hope Oyeyemi,
  • Michelle L. Harrison,
  • Suchit Chidurala and ,
  • Richard K. McCuller,
  • Milena Samora,
  • Yu Huo,
  • Ann-Katrin Grotle,
  • Audrey J. Stone and
  • Rhonda D. Prisby
  • + 7 authors+ 2 authors

Background: In type 2 diabetes mellitus (T2DM), bone and microvascular complications may be linked. Methods: The University of California Davis (UCD) polygenic T2DM and Sprague Dawley healthy control (CTL) rats (N = 48) were divided equally into diab...

  • Article
  • Open Access
1,242 Views
13 Pages

Long-Term Hyperglycemia Affects the Expression of Diaph1 and Its Cytoskeleton Ligands in the Epidermis of Diabetic Patients—A Quantitative Study

  • Bernard Kordas,
  • Wojciech Matuszewski,
  • Robert Modzelewski,
  • Jarosław Szuszkiewicz and ,
  • Michał Załęcki,
  • Joanna Wojtkiewicz and
  • Judyta Juranek
  • + 2 authors+ 0 author

Background/Objectives: Diabetic small fiber neuropathy and related sensory and epidermal problems affect up to 70% of all patients with diabetes. Long-term hyperglycemia disrupts cytoskeletal organization and axonal transport; however, molecular chan...

  • Article
  • Open Access
1,307 Views
20 Pages

Sexual Dimorphism in the Association Between Vitamin D and Depressive Symptoms in Diabetic Patients and the Mediating Role of BMI: A Cross-Sectional Study

  • Miriam Hernández-López,
  • Rafael Ramírez-Carracedo,
  • Mónica Grande-Alonso,
  • Alba Sebastián-Martín and
  • Rafael Moreno-Gómez-Toledano

Background: The interplay between vitamin D deficiency, obesity, and depressive symptoms in type 2 diabetes remains poorly understood. Potential sex-specific differences in these associations have not been fully explored. Methods: We conducted a cros...

  • Article
  • Open Access
3,121 Views
18 Pages

Identifying Risk Factors Associated with the Severity of Foot Ulcers in Type 2 Diabetic Patients: Evidence from a Hospital-Based Study in Rajshahi, Bangladesh

  • Shah Tanzen Jahan,
  • Durga H. Kutal,
  • Anicha Akter,
  • Md. Selim Reza and ,
  • Md. Kabirul Islam and
  • Md. Monimul Huq
  • + 1 author+ 0 author

Background: Diabetic foot ulcer (DFU) is a major complication of type 2 diabetes (T2D), frequently resulting in disability, lower-limb amputation, and substantial healthcare burden. Early identification of patients at high risk of progressing to seve...

  • Article
  • Open Access
2,182 Views
9 Pages

Background/Objectives: Patients with poor sleep are at high risk of developing type II diabetes mellitus (T2DM). Since T2DM is linked to increased risk of obstructive sleep apnea (OSA), and Metformin is commonly used to treat T2DM, we examined how Me...

(This article belongs to the Special Issue Advances in Sleep Disorders in Patients with Diabetes)
  • Article
  • Open Access
1,735 Views
11 Pages

Effect of Glycemic Management on Severity of Functional Impairment in Elderly Individuals with Type 2 Diabetes

  • Kohei Ueda,
  • Rie Saito,
  • Akiko Matsunaga,
  • Takayuki Sonoda and ,
  • Misako Kawaguchi,
  • Saori Kaeriyama,
  • Satsuki Sato,
  • Yasuo Zenimaru,
  • Masamichi Ikawa and
  • Norio Harada
  • + 5 authors+ 0 author

Background/Objectives: Diabetes threatens independent living among elderly individuals. However, the effects of glycemic management on the severity of functional impairment are unclear. This study aimed to elucidate the relationship between glycemic...

(This article belongs to the Special Issue Advances in Diabetes: Prevalence, Risk Factors, Complications, Costs and Disparities)
  • Article
  • Open Access
1,377 Views
10 Pages

Adipose Tissue Grafting: A New Paradigm in Diabetic Foot Treatment

  • Roberto Da Ros,
  • Roberta Assaloni,
  • Andrea Michelli,
  • Barbara Brunato and ,
  • Enrica Barro,
  • Marta Nardi,
  • Giovanni Papa and
  • Cesare Miranda
  • + 3 authors+ 0 author

Background: Adipose tissue grafting is a regenerative medicine approach based on the use of autologous adipose tissue showing significant potential for the treatment of diabetic foot lesions. In subjects with diabetes, impaired wound healing, periphe...

  • Review
  • Open Access
2,611 Views
13 Pages

Lipoprotein (a) and Apolipoproteins in Diabetes and Atherosclerotic Cardiovascular Disease: A Comprehensive Review of the Current Evidence

  • Albion Luzha,
  • Michael Y. Henein,
  • Guxim Bytyçi,
  • Rina Tafarshiku and ,
  • Gani Bajraktari and
  • Venera Berisha-Muharremi
  • + 1 author+ 0 author

Atherosclerosis, manifesting as acute myocardial infarction, stroke and peripheral artery disease, is the main cause of death worldwide. Conventional risk factors contributing to the development and progression of atherosclerosis are well established...

(This article belongs to the Special Issue Precision Medicine for Diabetes: From Screening to Personalized Management)
  • Article
  • Open Access
1 Citations
1,018 Views
27 Pages

Aims/hypothesis: Hypoxia and oxidative stress have been implicated in both metabolic syndrome and COVID-19-associated dysglycaemia, yet it remains unclear whether shared or distinct mechanisms underlie β-cell dysfunction across these conditions....

(This article belongs to the Special Issue Beta-Cell Failure and Death: A Cornerstone in Diabetes Pathogenesis)
  • Article
  • Open Access
1,758 Views
18 Pages

Background: Custom-made footwear that improves offloading using in-shoe pressure-guided techniques, when worn as recommended, reduces the risk of diabetic foot ulcer recurrence. We aimed to assess the cost-effectiveness of this approach, as it requir...

(This article belongs to the Special Issue Prevention and Care of Diabetic Foot Ulcers)
  • Review
  • Open Access
1 Citations
2,025 Views
28 Pages

Evaluation of the Present Perspective on Diabetic Foot Syndrome and Health Education and Analysis of the Impact of Educational Interventions: A Systematic Review and Meta-Analysis

  • Sol Tejeda-Ramírez,
  • José Luis Lázaro-Martínez,
  • Esther García-Morales,
  • Sara García-Oreja and ,
  • Laura Palacios-Abril and
  • Aroa Tardáguila-García
  • + 1 author+ 0 author

Aims: To evaluate the effectiveness of preventive educational interventions in individuals with diabetic foot syndrome (DFS) and to summarise current evidence on knowledge, self-care and health-education strategies related to this complication. Mater...

(This article belongs to the Special Issue Prevention and Care of Diabetic Foot Ulcers)
  • Review
  • Open Access
1 Citations
2,710 Views
22 Pages

G protein-coupled receptors (GPCRs) constitute the largest family of membrane receptors and are critical regulators of β-cell physiology. Nearly 300 GPCRs are expressed in human islets, where they integrate metabolic, hormonal, neuronal, and inf...

  • Article
  • Open Access
610 Views
13 Pages

Spinal Cord Lipid and ATPase Changes in Zucker Diabetic Fatty (ZDF) Rats, a Model of Type 2 Diabetes

  • Lenka Nemcová,
  • Janka Kubincová,
  • Mária Chomová,
  • Katarína Orešanská and
  • Monika Ďurfinová

Background/Objectives: Altered lipid metabolism is a key feature of type 2 diabetes mellitus (T2DM), yet its impact on early spinal cord involvement remains poorly understood. Distinguishing between pathological lipid accumulation and adaptive metabo...

  • Article
  • Open Access
1,329 Views
14 Pages

Association Between Adaptive Coping and Medication Adherence Among Patients with Type 2 Diabetes Mellitus

  • María Alicia Mejía-Blanquel,
  • Ricardo Castrejón-Salgado,
  • Miguel Trujillo-Martínez,
  • María G. Ortiz-López and ,
  • Gabriela Monserrat Huitzil-Juárez,
  • Marco Antonio León-Mazón,
  • Edith Araceli Cano-Estrada and
  • José Ángel Hernández-Mariano
  • + 3 authors+ 0 author

Background/Objectives: Previous evidence suggests that psychosocial factors may play an important role in shaping medication adherence among individuals with chronic diseases; however, the relationship between adaptive coping and medication adherence...

  • Article
  • Open Access
947 Views
11 Pages

Impact of Vascular Risk Factors on Longitudinal Changes in Diabetic Macular Edema After Intravitreal Therapy

  • Carmen Alba-Linero,
  • José Coín Ruiz,
  • Marta Mérida Luque,
  • Javier Espíldora-Hernández and
  • Mario Gutiérrez Bedmar

Objectives: The aim of this study was to analyze the association between cardiovascular risk factors such as glycated hemoglobin (HbA1c), low-density lipoprotein cholesterol (LDL-C), hypertension, overweight, and smoking and longitudinal anatomical a...

  • Article
  • Open Access
1,587 Views
17 Pages

Voluntary Exercise Delays Type 1 Diabetes Onset Independent of Splenic T Cell Subsets and Inflammatory Cytokines in NOD Mice

  • Marina Cetkovic-Cvrlje,
  • Hans Addo,
  • Mohammad A. Nimer,
  • Sunny S. K. Chan and
  • Gengyun Le-Chan

Objectives: This study aimed to assess the effects of voluntary exercise on type 1 diabetes mellitus (T1D) development and splenic immunological profiles in non-obese diabetic (NOD) mice, a spontaneous model of human T1D. Methods: Prediabetic female...

(This article belongs to the Special Issue Exercise as Medicine: Exploring the Prevention and Management of Diabetes)
  • Article
  • Open Access
1,048 Views
13 Pages

Autonomic Dysfunction and Ocular Complications: The Role of Sudoscan in Diabetic Retinopathy Screening

  • Andra-Elena Nica,
  • Emilia Rusu,
  • Carmen Dobjanschi,
  • Florin Rusu and ,
  • Claudia Sivu,
  • Oana Andreea Parliteanu,
  • Ioana Verde,
  • Andreea Andrita and
  • Gabriela Radulian
  • + 4 authors+ 0 author

Background: Diabetic retinopathy (DR) remains one of the most frequent and severe complications in patients with type 2 diabetes (T2DM), with significant implications for vision and quality of life. While classical screening methods are effective, th...

(This article belongs to the Special Issue New Perspectives and Future Challenges in Diabetic Retinopathy)
  • Article
  • Open Access
958 Views
14 Pages

Absence of Tendon Reflexes as a Predictor of Diabetic Retinopathy: A Retrospective Cohort Study in Japan

  • Taichi Muramatsu,
  • Ayaka Sugiura,
  • Daisuke Yamamuro,
  • Ryosuke Kumazawa and ,
  • Manabu Akazawa,
  • Akifumi Kushiyama and
  • Takako Kikuchi
  • + 2 authors+ 0 author

Background/Objective: This study investigated the association between tendon reflexes (Achilles and patellar) and the development of diabetic retinopathy (DR) in patients with type 2 diabetes (T2D). Methods: This single-center retrospective cohort st...

(This article belongs to the Special Issue New Perspectives and Future Challenges in Diabetic Retinopathy)
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Diabetology - ISSN 2673-4540