ABSTRACT
BACKGROUND & AIMS: Microalbuminuria is an early sign of vascular complications of type 2 diabetes and predicts cardiovascular disease and mortality. Monomeric and oligomeric flavanols (MOFs) are linked to improved vascular health. The aim of this study was to assess the effect of 3 months MOFs on albuminuria and endothelial function markers in patients with type 2 diabetes and microalbuminuria. METHODS: We conducted a double-blind, placebo-controlled trial among patients with type 2 diabetes and microalbuminuria. Patients with type 2 diabetes received either 200 mg MOFs or placebo daily on top of their habitual diet and medication. The primary endpoint was the between-group difference of the change in 24-h Albumin Excretion Rate (AER) over three months. Secondary endpoints were the between-group differences of the change in plasma levels of different markers of endothelial dysfunction. Mixed-modelling was applied for the longitudinal analyses. RESULTS: Participants (n = 97) were 63.0 ± 9.5 years old; diabetes-duration was 15.7 ± 8.5 years. Median baseline AER was 60 (IQR 20-120) mg/24 h. There was no within-group difference in median change of AER from baseline to 3 months in the intervention (0 (-35-21) mg/24 h, p = 0.41) or the control group (0 (-20-10) mg/24 h, p = 0.91). There was no between-group difference in the course of AER over three months (log-transformed data: ß = -0.02 (95%CI -0.23-0.20), p = 0.88), nor in the plasma levels of the endothelial dysfunction markers. CONCLUSION: Daily 200 mg MOFs for three months on top of habitual diet and usual care did not reduce AER and plasma markers of endothelial dysfunction compared to placebo, in patients with long-term type 2 diabetes and microalbuminuria. CLINICAL TRIALS REGISTRATION: NTR4669, www.trialregister.nl.
Subject(s)
Albuminuria/therapy , Diabetes Mellitus, Type 2/therapy , Dietary Supplements , Endothelium, Vascular/drug effects , Flavonols/administration & dosage , Aged , Albuminuria/complications , Albuminuria/physiopathology , Biomarkers/blood , Biomarkers/urine , Diabetes Mellitus, Type 2/complications , Diabetes Mellitus, Type 2/physiopathology , Double-Blind Method , Female , Flavonols/chemistry , Humans , Male , Middle Aged , Treatment OutcomeABSTRACT
BACKGROUND: Patients with type 2 diabetes mellitus (T2D) are prone to micro- and macro-vascular complications. Monomeric and oligomeric flavanols (MOF) isolated from grape seeds (Vitis vinifera) have been linked to improved endothelial function and vascular health. The aim of this study is to determine the effect of a daily supplementation of 200 mg MOF on renal endothelial function of patients with T2D and microalbuminuria. METHODS/DESIGN: For this double-blind, placebo-controlled, randomized, multicenter trial 96 individuals (ages 40-85 years) with T2D and microalbuminuria will be recruited. Participants will be randomly assigned to the intervention group, receiving 200 mg of MOF daily for 3 months, or to the control group, receiving a placebo. The primary endpoint is the evolution over time in albumin excretion rate (AER) until 3 months of intervention as compared with placebo. Secondary endpoints are the evolution over time in established plasma markers of renal endothelial function-asymmetric dimethylarginine (ADMA), soluble vascular cell adhesion molecule-1 (sVCAM-1), soluble intercellular cell adhesion molecule-1 (sICAM-1), interleukin-6 (IL-6), and von Willebrand Factor (vWF)-until 3 months of intervention as compared with placebo. Mixed modeling will be applied for the statistical analysis of the data. DISCUSSION: We hypothesize that T2D patients with microalbuminuria have a medically determined requirement for MOF and that fulfilling this requirement will result in a decrease in AER and related endothelial biomarkers. If confirmed, this may lead to new insights in the dietary management of patients with T2D. TRIAL REGISTRATION: Nederlands Trial Register, NTR4669 , registered on 7 July 2014.
Subject(s)
Albuminuria/diet therapy , Diabetes Mellitus, Type 2/diet therapy , Flavonols/administration & dosage , Randomized Controlled Trials as Topic , Vitis/chemistry , Adult , Aged , Aged, 80 and over , Data Interpretation, Statistical , Double-Blind Method , Humans , Middle Aged , Multicenter Studies as Topic , Outcome Assessment, Health Care , Sample Size , Seeds/chemistryABSTRACT
A 26-year-old woman was affected with a maculopapular rash because of a jellyfish sting on her right leg while surfing in Indonesia. A locally-prepared liniment was applied on the affected skin. She presented with hyperpigmented linear tracks that she noted a few days later.
Subject(s)
Bites and Stings/drug therapy , Citrus , Dermatitis, Phototoxic/etiology , Liniments/adverse effects , Phytotherapy , Plant Preparations/therapeutic use , Scyphozoa , Adult , Animals , Bites and Stings/complications , Citrus/adverse effects , Curcuma , Dermatitis, Phototoxic/diagnosis , Female , Humans , Indonesia , Leg , Liniments/administration & dosage , Netherlands , Plant Preparations/adverse effects , Skin/pathology , TravelABSTRACT
A 36-year-old woman presented with a red, itching bump on her back and brought the arthropod that had bitten her. The diagnosis, a bite of a soft tick, was made by determination of the arthropod as a pigeon tick (Argas reflexus). Pigeon ticks only occasionally bite humans and can transmit multiple infectious diseases.
