Calcification is a frequent cause of the clinical failure of bioprosthetic heart valves fabricated from glutaraldehyde pretreated bovine pericardium (GATBP). An investigation was made of the grafting of different molecular weight polyethylene glycol (PEG 600, 1500, 4000 and 6000) via glutaraldehyde (GA) linkages to bovine pericardium (BP) and of their stability and calcification. The process of...

hbs vaccines were prepared by three different methods: 1) heat inactivation (krugman, et.al 1971)2) ammonium sulphate precipitation followed by column chromatography (sephadex g-200) 3) peg-6000 (polyethylene glycol) precipitation followed by column chromatography using sephadex g-200. their efficacy was studied in guinea pigs, and the results compared with commercial japanese vaccine (green cr...

Seed germination is generally the critical step in seed establishment and thus determination of successful crop production. This study was focused at examination biochemical parameters effected by low water potential which generated polyethylene glycol (PEG) 6000 mannitol, related to drought stress growth Waha durum wheat genotype. Two tests were carried out a chamber; first comprises into Petr...

Fifty-one polycythemia vera (PV) patients were enrolled in the phase I/II clinical study PEGINVERA to receive a new formulation of pegylated interferon alpha (peg-proline-IFNα-2b, AOP2014/P1101). Peg-proline-IFNα-2b treatment led to high response rates on both hematologic and molecular levels. Hematologic and molecular responses were achieved for 46 and 18 patients (90 and 35% of the whole coho...

Growing applications of phenylalanine dehydrogenase (PheDH) enzyme in the medical and pharmaceutical industries encourages researchers to seek simple, fast and economical alternative purification methods. With goal of finding a new technique, the extraction and purification of recombinant Bacillus badius PheDH in polyethylene glycol 6000 (PEG-6000) and ammonium sulfate aqueous two-phase systems...

Solid Dispersions were prepared by solvent evaporation technique using microcrystalline cellulose, PEG 4000, PEG 6000, PVP-K30 and Gelucire 50/13. Further objective of the project was to develop fast release surface solid dispersion of glibenclamide and compressed at low pressure to form fast-melting pharmaceutical tablet. In this study, we used sodium starch glycolate for mouth dissolving natu...

abstract the purpose of this research was to transform two economically important cultivars of strawberry with p5cs gene, which encodes δ1-pyrroline-5-carboxylate synthetase (p5cs), the key enzyme in proline biosynthesis. shoots were obtained on ms basal medium supplemented with 2% glucose and 4 mg/l tdz for camarosa and kurdistan cultivars. for genetic transformation, a binary vector pbi121 co...

drought is considered as one of the most important limiting factors for oil seed canola plant(brassica napus l.) growth and productivity in iran. on the basis of root and shoot dry weight asaffected by water stress exerted by peg 6000, out of 9 canola cultivars, a relatively tolerant (cv. aghaii)and a sensitive cultivar (cv. po4) were selected. their responses to low water potential with respec...

Screening and identification of tolerant genotypes using osmotic materials under in vitro culture could be rapid, easy, even accurate. In this research, three Iranian landraces Cucurbita sp. included Tanbal Ajili (Cucurbita maxima Duch.), Razan pepo L.), Balghabakhi moschata Duch.) seeds were cultured ¼ MS medium. After germination, plantlets transferred to media containing mannitol PEG 6000. M...