Adsorption of methyl orange and methylene blue from aqueous solutions on pure bentonite: statistical physical modeling provides an analytical interpretation.

This study investigates the adsorption of methylene blue (MB) and methyl orange (MO) dyes from aqueous solutions using purified Moroccan bentonite, being mainly composed of silica and alumina, in the form of quartz and cristobalite. The temperature controls the adsorption capacity for the kinetics, increasing 5.08% (from 295.

Primary autonomic failure: a complex case of orthostatic hypotension in a hypertensive elderly patient.

Background: Primary autonomic failure (PAF) or Bradbury Eggleston syndrome is a neurodegenerative disorder of the autonomic nervous system characterized by orthostatic hypotension.

Case Summary: We report the case of a 76-year-old patient with a history of hypertension, who presented with exercise-induced fatigue. He exhibited systolic hypertension and resting bradycardia in the supine position, with orthostatic hypotension without reactive tachycardia, suggesting dysautonomia.

Factors associated with discrepancies between poor dyspnea perception and abnormal lung function in 65 asthmatic patients.

Background: Dyspnea is a subjective symptom of asthma whose perception is characterized by an interindividual variability. Poor dyspnea perception is usually associated with increased risk of exacerbation and may lead to inappropriate asthma management and under-treatment. We sought to identify factors associated with discrepancies between poor dyspnea perception and abnormal lung function in patients with moderate persistent asthma.

Autonomic dysregulation and phenobarbital in patients with masked primary hypertension.

Introduction: Primary hypertension can be masked and be responsible of a severe impact on the target bodies. The purpose of this study was to see if Phenobarbital at low dose is able to decrease the sympathetic hyperactivity assessed by cardiovascular autonomic reflexes in patients with masked hypertension.

Materials And Methods: This prospective study was conducted on a total of 91 patients with masked hypertension (average age 52.

Aneurysm of the Pulmonary Artery in Fallot's Tetralogy.

Introduction: Pulmonary artery aneurysms are a rare entity. Etiologies of these findings are multiple, but they are exceptionally associated with Fallot's Tetralogy. In this study, we present an unusual case of an important aneurysm of the left pulmonary artery associated with Fallot's Tetralogy disease.

Independent predictor factors of supine tachycardia in patients with type 2 diabetes mellitus.

Introduction: Supine tachycardia, frequently encountered in diabetic patients, is usually considered as an isolated diabetic complication in cardiac autonomic neuropathy. The objective of this study was to determine independent predictor factors of supine tachycardia among the clinical characteristics of type 2 diabetes mellitus.

Methods: This prospective study included type 2 diabetic patients.

Kinetics of orthostatic blood pressure in primary hypertension.

Background: Primary Hypertension (HT) is the most prevalent cardiovascular disorder worldwide and is accompanied by significant morbidity and mortality.

Objectives: The present study aimed to investigate the kinetics of orthostatic Blood Pressure (BP) in primary hypertensive patients during the change from supine position to standing position as well as during the standing position using the Orthostatic Test (OT).

Patients And Methods: This prospective study included a group of 107 primary hypertensive patients (mean age: 55.

Cardiovascular autonomic response to amlodipine in primary hypertension.

Sympathetic hyperactivity may be involved in primary hypertension. The purpose of this study was to evaluate both sympathetic and vagal activity responses in patients receiving amlodipine as antihypertensive agent. Patients and Methods.

Pharmacophore modelling and synthesis of quinoline-3-carbohydrazide as antioxidants.

From well-known antioxidants agents, we developed a first pharmacophore model containing four common chemical features: one aromatic ring and three hydrogen bond acceptors. This model served as a template in virtual screening of Maybridge and NCI databases that resulted in selection of sixteen compounds. The selected compounds showed a good antioxidant activity measured by three chemical tests: DPPH radical, OH° radical, and superoxide radical scavenging.