نتایج جستجو برای: especially arsenic and its compounds

تعداد نتایج: 16914506  

2009
M.A. Alam M.A. Awal N. Subhan M. Mostofa

The degree of binding of a drug to plasma proteins has a marked effect on its distribution, elimination, and pharmacological effect since only the unbound fraction is available for distribution into extra-vascular space. The protein-binding of atenolol was measured by equilibrium dialysis in the bovine serum albumin (BSA). Free atenolol concentration was increased due to addition of arsenic whi...

2015
Tiziana Marino Alberto Figoli Kyriakos D. Papadopoulos

Water contamination with harmful arsenic compounds represents one of the most serious calamities of the last two centuries. Natural occurrence of the toxic metal has been revealed recently for 21 countries worldwide; the risk of arsenic intoxication is particularly high in Bangladesh and India but recently also Europe is facing similar problem. Liquid membranes (LMs) look like a promising alter...

Journal: :Reproductive toxicology 2009
Cesare Castellini Evangelia Mourvaki Barbara Sartini Raffaella Cardinali Elena Moretti Giulia Collodel Salvador Fortaner Enrico Sabbioni Tommaso Renieri

Metal compounds have been associated with male reproductive toxicity in vivo. The aim of the present study was to investigate the in vitro effects of 20 metal compounds using rabbit ejaculated spermatozoa as a study model for spermiotoxicity. Five of the metals tested (arsenic, cadmium, chromium, mercury and vanadium) reduced sperm motility and curvilinear velocity. Ultrastructural analyses rev...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

growing demands and requires of high data rate systems cause significant increase of high frequency systems for wideband communication applications. as mixers are one of the main blocks of each receivers and its performance has great impact on receiver’s performance; in this thesis, a new solution for ku-band (12-18 ghz) mixer design in tsmc 0.18 µm is presented. this mixer has high linearity a...

Journal: :international journal of aquatic biology 0
sk sajed ali department of biochemistry and biotechnology, cell and molecular therapeutics laboratory, oriental institute of science and technology, vidyasagar university, midnapore-721102, west bengal, india. nirmallya acharyya department of biochemistry and biotechnology, cell and molecular therapeutics laboratory, oriental institute of science and technology, vidyasagar university, midnapore-721102, west bengal, india. smarajit maiti department of biochemistry and biotechnology, cell and molecular therapeutics laboratory, oriental institute of science and technology, vidyasagar university, midnapore-721102, west bengal, india.

epidemiological data suggest that arsenic ultimately results in cancer in different parts of the body. several synthetic therapeutic agents manifest inadequate potency with severe side effects against arsenic toxicity. the flesh of b. bengalensis , has long been used as an ethno-medicine in case of arthritis, blood-impurities, impaired immune system, conjunctivitis and liver anomalies. this pot...

2009
Vijay K. Bharti R. S. Srivastava

Objective: Exposure to various toxic metals has become an increasingly recognized source of illness in human and animals, worldwide. Arsenic (As) and its compounds cause adverse health effects in animals and humans. Recently, it has been suggested that the pineal gland may also have antioxidants role due to secretary product other than melatonin. With keeping this view, present investigation te...

Journal: :GEORGIAN SCIENTISTS 2023

The article discusses the distribution of arsenic in Georgia, composition its natural forms. It is shown that most promising method processing production waste synthesis new coordination compounds. interaction compounds with fauna and flora considered. widespread use medicine veterinary shown. has been economic priority to increase range drugs based on waste, which parallel contributes solution...

2008
N. Molénat A. Astruc M. Holeman G. Maury R. Pinel

Analytical parameters of hydride generation, trapping, gas chromatography and atomic absorption spectrometry detection in a quartz cell furnace (HG/GC/QFAAS) device have been optimized in order to develop an efficient and sensitive method for arsenic compounds speciation. Good performances were obtained with absolute detection limits in the range of 0.1 – 0.5 ng for arsenite, arsenate, monometh...

2011
Xuefeng Ren Cliona M. McHale Christine F. Skibola Allan H. Smith Martyn T. Smith Luoping Zhang

BACKGROUND Exposure to arsenic, an established human carcinogen, through consumption of highly contaminated drinking water is a worldwide public health concern. Several mechanisms by which arsenical compounds induce tumorigenesis have been proposed, including oxidative stress, genotoxic damage, and chromosomal abnormalities. Recent studies have suggested that epigenetic mechanisms may also medi...

2017
Julia R. Barrett

Arsenic compounds are often naturally present in water and food.12 A new study estimates Americans’ inorganic arsenic exposures from drinking water and rice—a food that may contain arsenic—and concludes that rice consumption may account for as much inorganic arsenic exposure as drinking water in some U.S. populations. At high levels, long-term exposures to inorganic forms of arsenic are strongl...

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