Defect in the excretion of a vasoactive polypeptide fraction A possible genetic marker of primary hypertension.

Effect of an Antagonist of Vasoactive Intestinal Polypeptide on Biological Rhythm of Rest Activity in the Rat

Abstract Vasoactive Intestinal Polypeptide (VIP), has been found in different neurotransmitter systems and exists in various nerve tracts in the brain. Potential role of this peptide in physiological processes such as regulation of sleep and wakefulness, and biological rhythms has been confirmed in several reports. In the present research effects of intracerebroventricular (ICV) injection of a...

Hyperoxalurias and their treatment

Hyperoxaluria is characterized by an increased in excretion of oxalate by kidney.There are two distinct clinical expressions of hyperoxaluria, named primary and secondary hyperoxaluria. Primary hyperoxaluria is a genetic disorder due to defective enzyme activity .In contrast , secondary hyperoxaluria , is caused by increased dietary ingestion of oxalate or oxalate precursors. There are three ma...

Primary immunodeficiency diseases (PIDs) is a diverse group of diseases, characterized by a defect in the immune system. These patients are susceptible to recurrent respiratory infections, gastrointestinal problems, autoimmune diseases, and malignancies. In most cases, patients with primary immunodeficiency disorders have genetic defects and are monogenic disorders that follow a simple Mendelia...

علل هورمونی پرفشاری خون در کودکان

This article outlines the various childhood endocrine disorders associated with hypertension . In many circumstances this is due to inadequate sodium excretion although other mechanisms are often involved. A close link with the kidney will be apparent since it is through this organ that the major effects of hormonal control of sodium are manifested although primary disturbances of kidney funct...

Association between Amylase Excretion Fraction and Acute Renal Transplant Rejection in Pediatrics

Background and Objectives: Serum amylase increases and its excretion fraction decreases in patients with renal failure. Excretion fraction can be used as a diagnostic way in individuals with acute renal transplant rejection. In this study, the association between amylase excretion fraction and acute renal transplant rejection, was investigated in pediatrics.   Methods: in this case - control s...