نتایج جستجو برای: oral absorption

تعداد نتایج: 378632  

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2003
Hye-Young Chung Sang-Hak Lee Young-Hun Kim Ki-Sang Lee Dae-Hong Kim

An etching technique for the determination of the metallic impurities distribution in silicon wafers has been developed. An area of 10 mmphi and 10 microm depth was etched by 100 microL of an etching solution with a HF and HNO3 mixture. The acid matrix was evaporated on the wafer surface by IR lamp illumination and vacuum exhaust. Metallic impurities remaining on the wafer surface were redissol...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Won-Kyu Lee Shuangcheng Yu Clifford J Engel Thaddeus Reese Dongjoon Rhee Wei Chen Teri W Odom

Nanostructured surfaces with quasi-random geometries can manipulate light over broadband wavelengths and wide ranges of angles. Optimization and realization of stochastic patterns have typically relied on serial, direct-write fabrication methods combined with real-space design. However, this approach is not suitable for customizable features or scalable nanomanufacturing. Moreover, trial-and-er...

2004
Mira F. Francis Mariana Cristea Françoise M. Winnik

The oral delivery of drugs is regarded as the optimal means for achieving therapeutic effects owing to increased patient compliance. Unfortunately, the oral delivery route is beset with problems such as gastrointestinal (GI) destruction of labile molecules, low levels of macromolecular absorption, etc. To reduce the impact of digestive enzymes and to ensure the absorption of bioactive agents in...

Journal: :Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan 2007
Akiko Ochiai Shirou Itagaki Toshimitsu Kurokawa Masaki Kobayashi Takeshi Hirano Ken Iseki

Coenzyme Q10 (CoQ10) is widely consumed as a food supplement because of its recognition as an important nutrient in supporting human health. Absorption of compounds from the gastrointestinal tract is one of the important determinants of oral bioavailability. However, the absorption of dietary CoQ10 is slow and limited due to its hydrophobicity and large molecular weight. The absorption of orall...

2014
Ahmed A Othman Sandeep Dutta

AIMS Levodopa-carbidopa intestinal gel (LCIG) provides continuous levodopa-carbidopa delivery through intrajejunal infusion. This study characterized the population pharmacokinetics of levodopa following a 16 h jejunal infusion of LCIG or frequent oral administration of levodopa-carbidopa tablets (LC-oral) in subjects with advanced Parkinson's disease (PD). METHODS A non-linear mixed-effects ...

Journal: :The Journal of clinical endocrinology and metabolism 2012
S Tuvia J Atsmon S L Teichman S Katz P Salama D Pelled I Landau I Karmeli M Bidlingmaier C J Strasburger D L Kleinberg S Melmed R Mamluk

CONTEXT Oral administration of a novel octreotide formulation enabled its absorption to the systemic circulation, exhibiting blood concentrations comparable to those observed with injected octreotide and maintaining its biological activity. OBJECTIVES The aim of the study was to determine oral octreotide absorption and effects on pituitary GH secretion compared to sc octreotide injection. D...

Journal: :the iranian journal of pharmaceutical research 0
abdolhamid parsa 1- department of pharmaceutics, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. 2- student research committee, shahid beheshti university of medical sciences, tehran, iran. roonak saadati department of pharmaceutics, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. zahra abbasian department of pharmaceutics, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. saeed azad aramaki clinical laboratory section, khatamolanbia hospital, tehran, iran. simin dadashzadeh 1- department of pharmaceutics, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. 2- pharmaceutical sciences research center, shahid beheshti university of medical sciences, tehran, iran.

etoposide, a widely used anticancer drug, exhibits low and variable oral bioavailability mainly because of being substrate for the efflux transporter, p-glycoprotein (p-gp). therefore, the present study was aimed to investigate the effect of d-α-tocopherol polyethylene glycol 1000 succinate (tpgs) and peg 400 as p-gp inhibitors on the intestinal absorption of etoposide. everted sacs of rat smal...

Journal: :Journal of Pharmacy Practice and Research 2005

Journal: :Journal of the Royal Society of Medicine 1988

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