Publications by authors named "George D Dimitriadis"

MASLD (Metabolic Dysfunction-Associated Steatotic Liver Disease) is a growing global concern. Nutraceuticals offer an appealing approach by targeting key mechanisms, such as oxidative stress, inflammation, lipid metabolism, and insulin resistance. This narrative review examines the role of various nutraceuticals in MASLD treatment, including silymarin, vitamin E, omega-3, curcumin, berberine, and coenzyme Q10.

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People with type 1 diabetes (T1D) are usually considered to exclusively exhibit β-cell failure, but they frequently also feature insulin resistance. This review discusses the mechanisms, clinical features, and therapeutic relevance of insulin resistance by focusing mainly on human studies using gold-standard techniques (euglycemic-hyperinsulinemic clamp). In T1D, tissue-specific insulin resistance can develop early and sustain throughout disease progression.

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Article Synopsis
  • - The study aimed to determine if umbilical cord blood platelet lysate (UCB-PL) gel improves healing rates for diabetic foot ulcers (DFU) compared to normal saline dressing.
  • - In this trial, 110 patients were divided into two groups; one received UCB-PL gel every three days while the other received saline, with ulcer sizes assessed over six months.
  • - Results showed UCB-PL gel led to a significantly greater reduction in ulcer size, with 97.6% of patients in the UCB-PL group seeing improvement compared to 73% in the saline group.
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Familial partial lipodystrophy (FPLD) is a rare syndrome in which a patient's phenotype is not merely dependent on the specific genetic mutation, but it is also defined by a combination of other demographic, environmental and genetic factors. In this prospective observational study in a Greek referral center, we enrolled 39 patients who fulfilled the clinical criteria of FPLD. A genetic analysis was conducted, which included sequence and deletion/duplication analyses of the LMNA and PPRARG genes, along with anthropometric and metabolic parameters.

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  • Non-alcoholic fatty liver disease (NAFLD) is a complex liver condition that may be influenced by small intestinal bacterial overgrowth (SIBO), which can cause inflammation and energy issues in the body.
  • The study aimed to determine how common SIBO is in NAFLD patients compared to healthy controls by analyzing duodenal fluid from patients diagnosed with various stages of NAFLD and measuring inflammatory markers.
  • Out of 125 participants, 18.4% were found to have SIBO, with its prevalence significantly higher in NAFLD patients (23.2%) compared to healthy controls (3.3%), indicating a potential link between SIBO and NAFLD progression
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The effects of spirulina consumption added in foods were investigated in two crossover clinical trials ( = 13 different healthy adults). In Trial-1 adults consumed cookies with-and-without spirulina (3.12 g per 100 g final product; 2.

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Aims/introduction: Several reports indicate an increasing prevalence of chronic kidney disease (CKD) in type 2 diabetes mellitus (T2DM). Hyperglycemia and hypertension are the main risk factors for CKD development and progression. However, despite the achievement of recommended targets for blood glucose and blood pressure (BP), the residual risk of diabetic chronic kidney disease (DCKD) remains relatively high.

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This randomized, single blind, cross-over study investigated the glycemic responses to three spaghetti No 7 types differing in dietary protein and soluble fiber content. Fourteen clinically and metabolically healthy, fasting individuals (25 ± 1 years; ten women; BMI 23 ± 1 kg/m) received isoglucidic test meals (50 g available carbohydrate) and 50 g glucose reference, in random order. GI was calculated using the FAO/WHO method.

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As years progress, we are found more often in a postprandial than a postabsorptive state. Chrononutrition is an integral part of metabolism, pancreatic function, and hormone secretion. Eating most calories and carbohydrates at lunch time and early afternoon, avoiding late evening dinner, and keeping consistent number of daily meals and relative times of eating occasions seem to play a pivotal role for postprandial glycemia and insulin sensitivity.

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  • The study aimed to evaluate how safe and effective frequency-domain optical coherence tomography (FD-OCT) is for determining the severity of left main coronary artery (LM) stenosis, as confirmed by fractional flow reserve (FFR).
  • Involving 101 patients with LM lesions, the researchers found that FD-OCT successfully analyzed the lesions in 87.1% of participants, showing a significant correlation between FFR values and FD-OCT measurements.
  • The study concludes that FD-OCT is a reliable imaging method for assessing LM stenosis, with a specific lumen area cutoff (≤5.38 mm) showing strong predictive power for severe functional impairment.
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Background: Familial partial lipodystrophy type 3 (FPLD3) is a very rare autosomal dominant genetic disorder which is caused by mutations in the peroxisome proliferator activated receptor gamma () gene. It is characterized by a partial loss of adipose tissue leading to subnormal leptin secretion and metabolic complications. Metreleptin, a synthetic analogue of human leptin, is an effective treatment for generalized lipodystrophies, but the evidence for efficacy in patients with FPLD3 is scarce.

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(1) Background: Type 2 diabetes mellitus (T2DM) is the main cause of chronic kidney disease (CKD). In Greece, in a population from hospital-based diabetes clinics ( = 1759), the overall prevalence of diabetic chronic kidney disease (DCKD) was 45% including mild, moderate, and severe CKD. The aim of this study was to describe and analyze how T2DM patients with mild-to-severe CKD are managed by diabetologists in Greece and assess the achievement rates in glycemic, blood pressure and low-density lipoprotein-cholesterol (LDL-C) control.

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Glucose levels in blood must be constantly maintained within a tight physiological range to sustain anabolism. Insulin regulates glucose homeostasis via its effects on glucose production from the liver and kidneys and glucose disposal in peripheral tissues (mainly skeletal muscle). Blood levels of glucose are regulated simultaneously by insulin-mediated rates of glucose production from the liver (and kidneys) and removal from muscle; adipose tissue is a key partner in this scenario, providing nonesterified fatty acids (NEFA) as an alternative fuel for skeletal muscle and liver when blood glucose levels are depleted.

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Hyperuricemia, has been traditionally related to nephrolithiasis and gout. However, it has also been associated with the development of type 2 diabetes mellitus (T2DM) and cardiometabolic and cardiovascular diseases. Pathophysiologically, elevated serum uric acid (SUA) levels may be associated with abnormal lipid and glucose metabolism.

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Purpose: It has been proposed that the negative emotional state of diabetes distress (DD) may exert a detrimental effect on glycemic outcomes of individuals struggling with diabetes-related challenges. Thus far, no study has investigated this association by utilizing individualized treatment targets of patients' glycemic control. Therefore, we sought to identify the potential role of DD in the achievement of individualized glycemic targets (AIGTs) among persons with type 2 diabetes mellitus (T2D).

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Aims: To examine the prevalence of diabetic chronic kidney disease (DCKD) and its risk factors in adult Greek subjects with type 2 diabetes mellitus (T2DM) in a population from hospital-based diabetes clinics.

Methods: This is a cross-sectional multicentre study based on data collected from Greek hospital-based diabetes clinics from June 2015 to March 2016. DCKD severity was defined according to the Kidney Disease: Improving Global Outcomes (KDIGO) 2012 guidelines.

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Background: Anaemia is a common finding in diabetes, particularly in those patients with albuminuria or renal dysfunction and is associated with impaired erythropoietin (EPO) secretion. This review focuses on mechanisms involved in the regulation of erythropoiesis in diabetic patients in an effort to elucidate the competing effects of the renin angiotensin system (RAS) blockade and sodium-glucose cotransporter-2 (SGLT2) inhibitors on haemoglobin concentration and hematocrit values.

Summary: The RAS shows significant activation in diabetic subjects.

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Article Synopsis
  • The audit evaluated colonoscopy service quality over the years 2013 and 2015, focusing on sedation administration, colonoscopy completion, adenoma detection, and complication rates.
  • In 2015, the sedation administration rate was maintained above the target at 93%, with significant improvements in colonoscopy completion rates in specific cohorts, demonstrating high standards of care.
  • Despite variations in individual endoscopist performance, overall quality indicators consistently met or exceeded international guidelines, indicating effective practices in the facility.
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Endoscopic biliary stent placement is an efficient method for the decompression of the biliary system in various benign and malignant causes. Dislocation and stent migration is a well-known complication, with most displaced stents passing through the bowel, uneventfully. Rarely, migrated stents can be accounted for potentially life-threatening complications.

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Background: There is evidence that the financial crisis has deleteriously affected scientific output. We aimed to assess the dynamics of Greek publications in gastroenterology and hepatology over the last ten years.

Methods: Data were collected from SCImago.

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Background: The usefulness of purgative preparation before small-bowel video capsule endoscopy is controversial. We aimed to examine the effect of purgative preparation on small-bowel video capsule endoscopy outcomes.

Methods: We performed literature searches in MEDLINE and the Cochrane library for randomized controlled trials evaluating the effect of purgative preparation (polyethylene glycol, sodium phosphate, others) vs.

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Background & Aims: Video capsule endoscopy (VCE) is the first-line diagnostic procedure for investigating obscure gastrointestinal bleeding (OGIB). Different re-bleeding rates following index VCE have been reported among Western and Eastern studies.

Methods: We conducted a comprehensive literature search to identify studies examining re-bleeding rates after VCE for OGIB.

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Terlipressin is a synthetic long-acting analog of vasopressin widely used to control variceal bleeding by lowering portal venous pressure. We report an unusual adverse reaction to terlipressin in a 78-year-old patient with esophageal variceal bleeding who developed skin necrosis soon after treatment initiation. Skin biopsy revealed embolia cutis medicamentosa.

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Functional dyspepsia is a highly prevalent disease, with significant impacts on patients' quality of life and economic robustness of health care systems worldwide. It constitutes a constellation of symptoms located in the gastro duodenal region while its pathogenesis remains poorly understood. Accumulating evidence suggest that small intestinal bacterial overgrowth is associated with the etiology of functional gastrointestinal disorders.

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