Nyctanthes arbor-tristis, (Fam. Oleaceae) is commonly known as Parijatham, Harsinghar and Night Jasmine. Different parts of Nyctanthes arbor-tristis are known to possess various ailments by rural mainly tribal people of India along with its use in Ayurveda, Sidha and Unani systems of medicines. They have also been investingated for various pharmacological actions. Water soluble fraction of etha...

Separation conditions in CE, with a neutral coated capillary and reversed polarity, have been optimised to make direct measurement of vanillylmandelic acid, homovanillic acid and 5-hydroxyindoleacetic acid possible in urine samples without pre-treatment. The method developed has been validated, presenting adequate parameters for linearity, accuracy and precision. Detection limits range from 0.0...

A pheochromocytoma of the urinary bladder in an 18-year-old male patient with typical clinical symptoms is reported. The blood pressure after micturition was above 300 mm Hg, the vanillylmandelic acid concentration in the 24-hour urinary excretion was elevated 4 or 5 times. Computed tomography and sonography were especially suited for diagnostic localization. The postoperative course has to be ...

1. Urinary excretion of dopa, catecholamines and their metabolites (vanillylmandelic acid, methoxycatecholamines, 3-methoxy-4-hydroxyphenylglycol and homovanillic acid) were studied in eighty patients with essential hypertension and in twenty-five healthy control subjects. 2. Increased urinary excretion of catecholamines, dopa and catecholamine metabolites was found in a proportion of cases. 3....

The determination of the two urinary catecholamine metabolites homovanillic acid (HVA) and vanillylmandelic acid (VMA) is of crucial importance for the diagnosis and follow-up of neuroblastoma (NB). The standard practice for their measurement requires the use of 24-hour collections that are time consuming and difficult to obtain. In this article, we directly demonstrate that 24-hour collections...