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There are two families of dopamine (DA) receptors, called D1 and D2, respectively. The D1 family consists of D1- and D5-receptor subtypes and the D2 family consists of D2-, D3-, and D4-receptor subtypes. The amino acid sequences of these receptors show that they all belong to a large superfamily of receptors with seven transmembrane domains, which are(More)
AIMS/HYPOTHESIS The accumulation of AGE is related to the progression of the renal, retinal and vascular complications of diabetes. However, the relationship with diabetic neuropathy remains unclear. We recently showed that skin autofluorescence, measured non-invasively with an AutoFluorescence Reader (AFR), could be used to assess skin AGE accumulation. We(More)
AIMS/HYPOTHESIS To evaluate baroreflex sensitivity (BRS) in microalbuminuric and normoalbuminuric Type I (insulin-dependent) diabetic patients without autonomic neuropathy and in healthy control subjects. METHODS Microalbuminuric Type I diabetic patients (n = 15) were matched for age, sex, body mass index (BMI) and smoking habits with 15 normoalbuminuric(More)
Exogenous norepinephrine (NE) increases intraglomerular pressure in animal experiments, but it is unknown whether NE induces a microproteinuric response in humans. Moreover, it has not been studied whether possible microproteinuric and renal hemodynamic changes induced by NE are altered in insulin-dependent diabetes mellitus (IDDM) complicated by(More)
The mechanisms responsible for the decreased high density lipoprotein (HDL) cholesterol levels associated with obesity and insulin resistance are not well understood. Lecithin: cholesterol acyltransferase (LCAT) and cholesterol ester transfer protein (CETP) are key factors in the esterification of cholesterol in HDL and the subsequent transfer of(More)
OBJECTIVE Several national and international scoring systems are used to diagnose diabetic polyneuropathy (PNP). The variety in these scores and the lack of data on validity and predictive value has led to a comparison and validation of the scores with clinical standards for PNP to determine the most powerful measurement for screening. RESEARCH DESIGN AND(More)
BACKGROUND Microdialysis of subcutaneous adipose tissue may provide an opportunity to monitor glucose continuously, when the device is connected to an extracorporal glucose sensor. We assessed whether our microdialysis probes are capable of measuring adipose tissue glucose over a prolonged period in Type 1 diabetic patients. Furthermore, the relationship(More)
OBJECTIVES To assess the effects of low-dose dopamine on norepinephrine-induced renal and systemic vasoconstriction in normotensive healthy subjects. DESIGN On separate days, either a low-dose dopamine (4 microg/kg/min) or a placebo (5% glucose) infusion was added in a single, blinded, randomized order to incremental norepinephrine infusions of 40, 80,(More)
The mechanism responsible for the atherogenic lipoprotein changes associated with cigarette smoking are largely unknown. Lecithin: cholesterol acyltransferase (LCAT) and cholesteryl ester transfer protein (CETP) are key factors in the esterification of plasma cholesterol and the transfer of cholesteryl ester from high-density lipoproteins (HDLs) toward(More)