conclusions it looks that a. hirtifolium has antinociceptive effects that might be due to flavonoids and saponins in plant the analgesic effect of which was demonstrated previously. results allium hirtifolium extract at (200 mg/kg dosage), alone and in combination with aspirin, had shown antinociceptive effect in writhing, tail-flick, and formalin tests (p < 0.01). allium hirtifolium extract (a...

This study reports the results of a study aimed at reducing the free formaldehyde content of Phenolformaldehyde resin by using Urea as means for forming a reversible adduct with formaldehyde. The highly volatile formaldehyde has an unpleasant odour and irritates the eyes and nasal passages. The free formaldehyde content (FFC) of the modified resol resin was determined by titration method. With ...

This study evaluates the histological changes, especially the presence of possible precancerous lesions, in the nasal mucosa of workers exposed to formaldehyde. Nasal biopsies of 37 workers occupationally exposed to formaldehyde for more than five years and 37 age matched referents showed a higher degree of metaplastic alterations in the former group. In addition, three cases of epithelial dysp...

Formaldehyde is a colorless gas with a pungent odor that is widely used as a preservative in toiletries and cosmetics and in products for household and industrial use. Both formaldehyde itself and substances that can release it are a common cause of allergic contact dermatitis. This condition often becomes chronic, given that these allergens are found nearly everywhere and it is difficult for p...

Background and Aims: Formaldehyde, a colorless aldehyde with pungent odor, has negative effects on systems of the body. Considering, there are a little data about protective substances against kidney damage induced by formaldehyde, the aim of the present study was to examine the effects of different doses of N-acetyl cysteine on biochemical and histopathological parameters in k...

Reports of formaldehyde levels in mainstream, sidestream, and environmental tobacco smoke from nine studies are reviewed. Considerable disparity exists between formaldehyde production rates determined from mainstream-sidestream studies and those reporting levels in environmental tobacco smoke. Tobacco smoke does not appear to increase vapor-phase formaldehyde levels significantly in indoor envi...

Oxidation of formaldehyde (HCHO) is very important, owing to its use in fuel cells. Modification of electrodes surfaces is an excellent way to decrease the overpotentials as well as to increase the current density of the voltammetric response.pt as most efficient metal catalyst can easily be poisoned by product of oxidation and also it has high cost. In this work an efficient and low cost elect...

THE FOLLOWING GENERAL CONCLUSIONS MAY BE DRAWN FROM THE PRECEDING WORK: Fibrin is altered by formaldehyde and is then less easily digested by pepsin and by trypsin. Papaïn is apparently unable to digest fibrin even when this is exposed to very weak formaldehyde (1:1000) for a very short time. The casein of milk, on contact with formaldehyde, undergoes rapid alteration and is as a result not coa...