Active clinical trials for "Syndrome"

It has been demonstrated that EPA and DHA supplementation may have anti-inflammatory properties in several chronic diseases, namely, diabetes, obesity, and in rheumatoid arthritis, although not with controversy. Systemic lupus erythematosus (SLE) and Antiphospholipid Antibody Syndrome (AAS) are autoimmune diseases characterized by a chronic inflammatory state which is associated with the disease´s clinical symptoms. Thus, we hypothesized that EPA and DHA supplementation may beneficially affect the inflammatory cytokine profile and clinical features of LES and AAS patients.

Obstructive Sleep Apnea Syndrome (OSAS) is associated with elevated plasma levels of IL-6 and TNF-α, which cannot be accounted for by obesity (Vgontzas et al Sleep Med Rev 2005;9:211-24, Ciftci et al Cytokine 2004;28:87-91]. Obstructive apneas-hypopneas are accompanied by strenuous diaphragmatic contractions before the ensuing arousals and re-establishment of airway patency. We have shown that strenuous diaphragmatic contractions induced by resistive loading lead to elevated plasma levels of IL-6, TNF-α, and IL-1β (Vassi-lakopoulos et al AJRCCM 2002;166:1572-8) with concomitant up-regulation of the cytokines within the diaphragmatic myofibers (Vassilakopoulos et al AJRCCM 2004;170:154-61). OSAS patients exhibit frequent episodes of hypoxemia during the night. Loaded breathing is a form exercise for the respiratory muscles, and both acute and chronic hypoxia lead to an augmented plasma IL-6 response to exercise compared to normoxia (Lundby et al Eur J Appl Physiol 2004;91:88-93). In OSAS, monocytes have oxidative stress (Dyugovskaya et al AJRCCM 2002;165:934-9) and produce more cytokines (TNF-α) in vitro (Minoguchi et al Chest 204;126:1473-9). Hypothesis #1: plasma levels of IL-6 and TNF-α are increased during the night in OSAS patients secondary to the intermittent strenuous diaphragmatic contractions and the episodes of hypoxia-reoxygenation associated with the obstructive apneas-hypopneas. Hypothesis #2: monocytes from sleep apnea patients, exhibit augmented intracellular expression of IL-6 and TNF-α during the night. Hypothesis #3: Oxidative stress is a stimulus for cytokine upregulation in OSAS.

The project is aimed at investigating the effect of nutrition education on knowledge, attitude and practice (KAP)of subjects who are frequently eating out, and the effect on metabolic parameters.

Among 10 premenopausal women with Metabolic Syndrome: Specific Aim 1: Compare the effects of acute fat feeding on flow mediated dilation (FMD) as measured by brachial artery reactivity among three fat challenges (saturated fat vs. monounsaturated fat (MUFA) vs. polyunsaturated fat (PUFA)at 4 hours post feeding. Hypothesis Saturated fat feeding will impair FMD but MUFA and PUFA feeding will not. Specific Aim 2: Compare the effects of acute feeding on vascular inflammation as measured by VCAM and sICAM among three fat challenges at 3 1/2 hours post feeding. Hypothesis: Saturated fat feeding will increase vascular inflammation but MUFA and PUFA will not.

Obstructive sleep apnea syndrome (OSAS) is a common disease, with a prevalence evaluated between 5 - 7% in the general population. OSAS is characterized by recurrent episodes of partial or complete upper airway obstruction during sleep, which are nearly systematically associated with a desaturation-reoxygenation sequence, an admitted detrimental stimulus for the cardiovascular system. It has now been demonstrated that OSAS per se is able to generate hypertension, atherosclerosis and autonomic dysfunction (high sympathic tone and increase in baseline heart rate), all conditions possibly interacting with ocular vascular regulation. OSAS has major consequences on the ocular level since it is associated with a higher frequency of optic neuropathies, such as glaucoma and nonarteritic ischemic optic neuropathy (NAION), both with functional severe prognosis. Most of vascular changes associated with OSAS have been studied at the level of macrovasculature. In terms of physiopathology, the main effects on the vascular system in OSAS are sympathetic hyperactivity, oxidative stress, development of endothelial dysfunction, systemic inflammation and metabolic alterations such as the appearance of insulin resistance. All these mechanisms can affect the microcirculation of the eye, especially the optic nerve and choroid. Our hypothesis is that the eye microvasculature is affected by OSAS, and these lesions may be detected via a reduced autoregulation of blood flow in humans. This project aims to demonstrate, quantify, and analyze the vascular modifications of the eye associated with OSAS trough a comparative clinical study on glaucoma patients and OSAS patients and matched healthy subjects for the regulation of the eye blood flow using confocal laser Doppler flowmetry (LDF). The regulation of the ocular blood flow will be assessed using several stimuli and measured using a new confocal LDF.

Patients with obstructive sleep apnea syndrome have permanent variations of their hemodynamic parameters during the night : heart rate, arterial blood pressure, cardiac output. This is due to the repetition of respiratory events (obstructive apnea and hypopnea) leading to frequent micro-arousals. These disorders have several consequences : hypertension, NO-dependent vasodilatation impairment, baroreceptor reflex impairment, insulin resistance and other cardiovascular impairments.

The purpose of this study is to define the mechanism(s) through which Obstructive Sleep Apnea/Hypopnea (OSAH) promotes abnormal metabolic processes which characterize the metabolic syndrome. The investigators hypothesize that the sleep fragmentation and intermittent sleep hypoxia which occur in OSAH patients promote oxidative stress and inflammation which in turn lead to insulin resistance, dyslipidemia, abnormal vascular reactivity and other processes which are consistent with the metabolic syndrome.

RATIONALE: Light-emitting diode (LED) therapy may be able to prevent mucositis of the mouth. PURPOSE: Randomized phase II trial to determine the effectiveness of LED therapy in preventing mucositis of the mouth in children who are receiving chemotherapy with or without radiation therapy before donor bone marrow transplantation.

Metabolic syndrome is a condition which is recognized by abdominal obesity, dyslipidemia, hyperglycemia, and hypertension. Curcumin has beneficial effects such as antioxidant and anti-inflammatory effects. nanomcielle curcumin will be used in this study because of the low bioavailability , fast metabolism and low absorption of curcumin powder. Therefore, this study is planned to determine the effects of supplementation of nanomicelle curcumin on glycemic control, serum lipid profile ,blood pressure and anthropometric measurements in patients with metabolic syndrome.

This is a longitudinal single blind randomized trial to test the effects of high compared to low dose vitamin D3 supplementation on cognitive performance at 6 and 12 months, and MRI measures of 12 months duration. A cognitive assessment battery will be administered at baseline, 6 and 12 months. Related clinical data and information on depression and anxiety, lifestyle, and food sources of vitamin D and sun exposure among other variables will also be collected.