نتایج جستجو برای: n3 hexamethylene bis hydantoin

تعداد نتایج: 53417  

2011
Sanjay Swarup

To evaluate the efficiency of modified epoxy resins using bisphenol-A, hydantoin & cyanuric acid & to investigate the structural change due to the presence of Nitrogen atoms in polymeric chain for improved insulating properties, weatherability etc. The samples of epoxy resin bisphenol-A, hydantoin and Cyanuric acid based was taken for X-ray diffraction analysis. The diffraction patterns were Fo...

2011
Modesto Redrejo-Rodríguez Christine Saint-Pierre Sophie Couve Abdelghani Mazouzi Alexander A. Ishchenko Didier Gasparutto Murat Saparbaev

BACKGROUND Oxidative damage to DNA, if not repaired, can be both miscoding and blocking. These genetic alterations can lead to mutations and/or cell death, which in turn cause cancer and aging. Oxidized DNA bases are substrates for two overlapping repair pathways: base excision (BER) and nucleotide incision repair (NIR). Hydantoin derivatives such as 5-hydroxyhydantoin (5OH-Hyd) and 5-methyl-5-...

Journal: :Journal of virology 1997
L M Vance N Moscufo M Chow B A Heinz

We have been exploring the mechanism of action of 5-(3,4-dichlorophenyl) methylhydantoin (hydantoin), an antiviral drug that inhibits the replication of poliovirus in culture. By varying the time of drug addition to infected cells, we found that the drug acts at a stage which is late in the replication cycle and subsequent to the step inhibited by guanidine. Furthermore, we detected normal leve...

Journal: :international journal of pediatrics 0
r vakili department of pediatrics endocrinology, faculty of medicine, mashhad university of medical sciences (mums), mashhad, iran. m saeidi students research committee, faculty of medicine, mashhad university of medical sciences (mums), mashhad, iran. p eshraghi department of pediatrics endocrinology, faculty of medicine, mashhad university of medical sciences (mums), mashhad, iran. a ataei nakhaei department of pediatrics endocrinology, faculty of medicine, mashhad university of medical sciences (mums), mashhad, iran. s vakili students research committee, faculty of medicine, mashhad university of medical sciences (mums), mashhad, iran. a khakshour department of pediatrics, north khorasan university of medical sciences, bojnurd, iran.

introduction: vitamin d deficiency and rickets continue to be health problems in developing countries and most of the infants with congenital rickets may present with hypocalcemic seizure.   case report: in this article, the report on four infants who presented with hypocalcemic seizures but subsequently were found to have congenital rickets is presented. all of them had hypocalcaemia and low l...

Journal: :Contact dermatitis 2016
Johannes Geier Holger Lessmann Uwe Hillen Christoph Skudlik Uta Jappe

BACKGROUND Epoxy resin systems (ERSs), consisting of resins, reactive diluents, and hardeners, are indispensable in many branches of industry. In order to develop less sensitizing ERS formulations, knowledge of the sensitizing properties of single components is mandatory. OBJECTIVES To analyse the frequency of sensitization in the patients concerned, as one integral part of a research project...

2013
Chandagirikoppal V. Kavitha Mridula Nambiar Pavan B. Narayanaswamy Elizabeth Thomas Ujjwal Rathore Channapillekoppalu S. Ananda Kumar Bibha Choudhary Kanchugarakoppal S. Rangappa Sathees C. Raghavan

BACKGROUND Due to the functional defects in apoptosis signaling molecules or deficient activation of apoptosis pathways, leukemia has become an aggressive disease with poor prognosis. Although the majority of leukemia patients initially respond to chemotherapy, relapse is still the leading cause of death. Hence targeting apoptosis pathway would be a promising strategy for the improved treatment...

Journal: :Journal of medicinal chemistry 2003
Michaela Jansen Heidrun Potschka Claudia Brandt Wolfgang Löscher Gerd Dannhardt

A novel series of C-3 substituted 4,6-dichloroindole-2-carboxylic acids was synthesized to investigate the influence of different hydrogen-bond donor and acceptor groups at this specific position on the affinity to the glycine site of the NMDA receptor. These novel 3-indolylmethyl derivatives with ring-open (amines, sulfonamides, amides, ureas) and cyclic substituents (imidazolidin-2-ones, (thi...

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