نتایج جستجو برای: تری پنتیل فسفات tpp

تعداد نتایج: 25730  

Journal: :Chemistry & biology 2005
Narasimhan Sudarsan Smadar Cohen-Chalamish Shingo Nakamura Gail Mitchell Emilsson Ronald R Breaker

Thiamine metabolism genes are regulated in numerous bacteria by a riboswitch class that binds the coenzyme thiamine pyrophosphate (TPP). We demonstrate that the antimicrobial action of the thiamine analog pyrithiamine (PT) is mediated by interaction with TPP riboswitches in bacteria and fungi. For example, pyrithiamine pyrophosphate (PTPP) binds the TPP riboswitch controlling the tenA operon in...

Journal: :Nihon eiseigaku zasshi. Japanese journal of hygiene 1992
K Katoh

Triphenyl phosphite (TPP)-induced delayed neurotoxicity, which is thought to resemble but somewhat differ from classical organophosphate-induced delayed neurotoxicity (OPIDN), is known to be age-dependent. The relationship between clinical appearance and histopathological lesions, and the inhibition of neurotoxicity target esterase (NTE) in nervous tissues were compared in young and adult chick...

2001
Suslick Randall Watson Scott R. Wilson

New sulfate and hydrogen sulfate complexes of metalloporphyrins have been synthesized and crystallographically characterized and their photochemistry examined. Irradiation of [Mn(TPP)],(SO,) and Mn(TPP)(OS03H) (where TPP = 5,10,15,20-tetraphenylporphyrinate(2-)) produces Mn"(TPP) quantitatively, with quantum yields of 7.1 X IO4 and 9.8 X IO-', respectively. In contrast to other manganese oxoani...

Journal: :The Malaysian journal of medical sciences : MJMS 2013
Neda Valizadeh Sahar Zarrin

Thyrotoxic Periodic Paralysis (TPP) is a rare and life threatening condition commonly occurring in young Asian males. It is characterized by acute paralytic attacks and hypokalemia in association with thyrotoxicosis. Serum potassium levels may be normal in rare cases of TPP. The diagnosis of normokalemic TPP may be overlooked and/or delayed in most cases. Here, we describe a 32-year-old Iranian...

2015
Lixin Qiu Bicheng Hu Hongbo Chen Shanshan Li Yuqian Hu Yi Zheng Xinxing Wu

This research was conducted to formulate biodegradable itraconazole (ITZ)-loaded d-a-tocopheryl polyethylene glycol 1000 succinate-b-poly(e-caprolactone-ran-glycolide) (TPGS-b-(PCL-ran-PGA); TPP) nanoparticles (NPs) (designed as ITZ-loaded TPP NPs) to improve antifungal efficacy. ITZ-loaded TPP NPs were prepared by a modified double-emulsion method, and their size distribution, morphology, zeta...

2013
Sharon Friel Deborah Gleeson Anne-Marie Thow Ronald Labonte David Stuckler Adrian Kay Wendy Snowdon

Trade poses risks and opportunities to public health nutrition. This paper discusses the potential food-related public health risks of a radical new kind of trade agreement: the Trans Pacific Partnership agreement (TPP). Under negotiation since 2010, the TPP involves Australia, Brunei, Canada, Chile, Japan, Malaysia, Mexico, New Zealand, Peru, Singapore, the USA, and Vietnam. Here, we review th...

Journal: :Physical chemistry chemical physics : PCCP 2010
Guo-Yu Jiang Wan-Hua Lei Qian-Xiong Zhou Yuan-Jun Hou Xue-Song Wang Bao-Wen Zhang

Protein affinity is of importance for porphyrins in their application in photodynamic therapy (PDT). A new Phenol Red-modified porphyrin (R-TPP) was designed and synthesized to fully take advantage of the binding character of Phenol Red towards protein. Detailed comparisons of absorption spectra, fluorescence spectra, n-octanol/water partition coefficients, (1)O(2) quantum yields, as well as pr...

Journal: :Journal of biomedical materials research. Part A 2013
Falguni Pati Hemjyoti Kalita Basudam Adhikari Santanu Dhara

Tripolyphosphate (TPP) crosslinked chitosan (CH)-based fibrous matrices have potential as bioactive scaffolds for bone tissue engineering. This study describes mechanical, biomineralization, and in vitro bone cell growth and differentiation properties of CH-TPP (chitosan-tripolyphosphate) fibrous scaffolds and compared with that of uncrosslinked CH one. The hydrated CH-TPP scaffolds were viscoe...

2012
Susheela Kushwaha Prashant Kumar Singh Mohd. Shahab Manisha Pathak Shailja Misra Bhattacharya

BACKGROUND The trehalose metabolic enzymes have been considered as potential targets for drug or vaccine in several organisms such as Mycobacterium, plant nematodes, insects and fungi due to crucial role of sugar trehalose in embryogenesis, glucose uptake and protection from stress. Trehalose-6-phosphate phosphatase (TPP) is one of the enzymes of trehalose biosynthesis that has not been reporte...

Journal: :The Journal of clinical endocrinology and metabolism 2006
Annie W C Kung

CONTEXT The aim of this article was to review the clinical presentation, pathogenesis, and management of thyrotoxic periodic paralysis (TPP). EVIDENCE ACQUISITION A MEDLINE search was conducted for articles published during the last 40 yr based on the key words thyrotoxic periodic paralysis and hypokalemic periodic paralysis. A total of 281 primary articles and 168 references of the retrieved...

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