Publications by authors named "Kamel Mohammedi"

Hypertension, cardiovascular disease and kidney failure are associated with persistent hyperglycaemia and the subsequent development of nephropathy in people with diabetes. Diabetic nephropathy is associated with widespread vascular disease affecting both the kidney and the heart from an early stage. However, the risk of diabetic nephropathy in people with type 1 diabetes is strongly genetically determined, as documented in familial transmission studies.

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Since the pionneer work of Meerwaldt and the Groningen team, who related skin autofluorescence (SAF) to the dermal concentrations of advanced glycation end-products (AGEs), hundreds of articles have been devoted to its application in diabetes. Due to the slow turnover of the AGEs formed on collagen of the skin, the SAF can reflect the progressive accumulation of AGEs and hence be a marker of long-term glucose exposure. Accordingly, relations with HbA1c from the previous 3-10 years have been established in both type 1 and type 2 diabetes, and even in gestational diabetes mellitus.

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Article Synopsis
  • - Glycation is a process where proteins undergo a modification linked to conditions like diabetes, with specific products like glycated hemoglobin (HbA1c) being crucial for diabetes management and advanced glycation end-products (AGEs) associated with complications.
  • - The study explores the use of fingernail clippings as a practical and non-invasive method to measure glycation levels over several months, utilizing liquid chromatography-mass spectrometry to quantify relevant biomarkers like furosine and AGEs.
  • - Results show a moderate correlation between fingernail furosine levels and HbA1c, suggesting that fingernails can effectively reflect glycation levels similarly to blood tests, supporting their potential use in monitoring diabetes.
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Background: The relationship between ankle blood pressure (BP) and cardiovascular disease remains unclear. We examined the relationships between known and new ankle BP indices and major cardiovascular outcomes in people with and without type 2 diabetes.

Methods: We used data from 3 large trials with measurements of ankle systolic BP (SBP), ankle-brachial index (ABI, ankle SBP divided by arm SBP), and ankle-pulse pressure difference (APPD, ankle SBP minus arm pulse pressure).

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Lower extremity peripheral artery disease (PAD) often results from atherosclerosis, and is highly prevalent in patients with type 2 diabetes mellitus (T2DM). Individuals with T2DM exhibit a more severe manifestation and a more distal distribution of PAD compared to those without diabetes, adding complexity to the therapeutic management of PAD in this particular patient population. Indeed, the management of PAD in patients with T2DM requires a multidisciplinary and individualized approach that addresses both the systemic effects of diabetes and the specific vascular complications of PAD.

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Article Synopsis
  • A study evaluated the clinical and economic impact of stroke in French patients with type 2 diabetes (T2D), finding that 4.6% of participants experienced a stroke requiring hospitalization between 2012 and 2018.
  • The research indicated that ischemic strokes were significantly more common than hemorrhagic strokes, with higher associated rates of cardiovascular disease, stroke recurrence, and mortality in hemorrhagic cases during the follow-up period.
  • Treatment patterns revealed a slight increase in the prescription of certain glucose-lowering medications over time, highlighting ongoing health management challenges for T2D patients after experiencing a stroke.
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Aim: The use of vitamin K antagonists (VKAs) may increase the risk of peripheral arterial disease (PAD) because vitamin K is a strong inhibitor of medial arterial calcification. Type 2 diabetes (T2D) exposes patients to an increased risk of PAD. We examined how the use of VKAs modulates the risk of incident PAD in people with T2D.

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Article Synopsis
  • The study aimed to find clinical and biochemical indicators that can point out individuals with dysglycaemia (diabetes/pre-diabetes) who do not experience serious health issues during follow-up.
  • Researchers analyzed data from the ORIGIN study involving over 12,500 adults to determine factors linked to remaining free from major health outcomes over a median follow-up of 6.2 years.
  • Key findings showed that younger age, female sex, and specific clinical and biomarker profiles can effectively identify individuals with prediabetes or early type 2 diabetes who are least likely to face serious health complications.
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Objective: Diabetic kidney disease favors diabetic foot ulcers, however we do not know whether the reverse relation exists. We investigated whether diabetic foot disease (DFD) related to an increased risk of developing renal events.

Research Design And Methods: We conducted a retrospective analysis of a cohort of patients hospitalized for type 2 diabetes mellitus (T2DM) between 2009 and 2017, stratified for the risk of diabetic foot ulcer grades 0 (no risk), 1 and 2 (at risk), and 3 (DFD) according to the International Work Group on Diabetic Foot (IWGDF) classification.

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Context: Current guidelines for distinguishing Cushing's disease (CD) from ectopic ACTH secretion (EAS) are questionable, as they use pituitary magnetic resonance imaging (MRI) as first-line investigation for all patients. CRH testing is no longer available, and they suggest performing inferior petrosal sinus sampling (BIPPS), an invasive and rarely available investigation, in many patients.

Objective: To establish noninvasive personalized diagnostic strategies based on the probability of EAS estimated from simple baseline parameters.

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Importance: A major issue in the management of craniopharyngioma-related obesity (CRO) is the ineffectiveness of the current therapeutic approaches.

Objective: To study the efficacy of glucagon-like peptide-1 analogs compared with placebo in adults with obesity CRO.

Design: A double-blind multicenter superiority randomized clinical in trial in two parallel arms.

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Background And Aims: Few studies have compared arm and ankle blood pressures (BPs) with regard to peripheral artery disease (PAD) and mortality. These relationships were assessed using data from three large prospective clinical trials.

Methods: Baseline BP indices included arm systolic BP (SBP), diastolic BP (DBP), pulse pressure (arm SBP minus DBP), ankle SBP, ankle-brachial index (ABI, ankle SBP divided by arm SBP), and ankle-pulse pressure difference (APPD, ankle SBP minus arm pulse pressure).

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Background: Chronic limb-threatening ischemia (CLTI) is the end-stage of peripheral arterial disease (PAD) posing a high risk for limb loss and mortality. This study aims to evaluate and list possible predictors of major adverse limb events (MALEs) in CLTI patients with tissue loss.

Methods: This retrospective study included all Rutherford-Becker stage 5 or 6 patients who required foot debridement and revascularization in our department from January 2016 to December 2018.

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Background: Cardiovascular disease is frequent in type 2 diabetes mellitus (T2DM). We investigated the relationship between skin autofluorescence (SAF) of advanced glycation end-products and later cardiovascular events (CVEs) in patients with T2DM.

Research Design And Methods: We conducted a retrospective analysis of 504 patients hospitalized for uncontrolled and/or complicated T2DM between 2009 and 2017.

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Chen et al. recently related the skin autofluorescence (SAF) of Advanced Glycation End-products to subclinical cardiovascular disease in the 3001 participants from the general population (Rotterdam study), with a particularly close relationship for the 413 subjects with diabetes. Because conventional vascular risk factors do not capture the risk in diabetes very well, this relationship may help to select high-risk individuals for the screening of silent myocardial ischemia, which has yet to prove its benefit in randomized controlled trials.

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Objective: Cancer has been proposed as the primary cause of death in type 2 diabetes (T2D). The life expectancy is reduced after a diabetic foot ulcer. We investigated whether Diabetic Foot Disease related to an increased risk of developing a new cancer.

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Aim: Patient- and physician-associated barriers impact the effectiveness of basal insulin (BI) titration in the management of type 2 diabetes (T2D). We evaluated the experiences of patients with T2D and physicians with BI titration education.

Materials And Methods: In this observational, cross-sectional study, patients with T2D and physicians treating patients with T2D were identified by claims in the Optum Research Database and were invited to complete a survey.

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Objectives: The long-term glycemic memory contributes to vascular complications in type 2 diabetes, including those patients with Diabetic Foot Ulcers (DFU). We investigated whether the skin autofluorescence (SAF) of Advanced Glycation End-products related to later DFUs.

Research Design & Methods: SAF was measured with an AGE-Reader in a retrospective cohort of patients hospitalized from 2009 to 2017 for Type 2 Diabetes.

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Context: Cortisol-lowering drugs may not restore a normal cortisol secretion in Cushing disease (CD).

Objective: This work aimed to assess the long-term cortisol exposure in medically treated CD patients using hair-cortisol (HF) and hair-cortisone (HE) measurement.

Methods: This multicenter prospective study included 3 groups of female patients: CushMed = 16 treated with a stable cortisol-lowering drug dosage and normal urinary free cortisol (UFC); CushSurg = 13 cured by pituitary surgery; CushBla = 15 receiving stable recommended doses of hydrocortisone following bilateral adrenalectomy.

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Article Synopsis
  • The SURE France study examined the effectiveness of once-weekly semaglutide for adults with type 2 diabetes (T2D) in a real-world clinical setting, involving 497 participants.
  • Results showed significant reductions in HbA1c levels (average decrease of 1.2%) and body weight (average loss of 4.7 kg) after approximately 30 weeks of treatment.
  • A majority of patients met HbA1c targets, and no new safety issues were reported, highlighting semaglutide's potential benefits for T2D management in France.
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