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Showing 1-30 of 3440 results for "34442" within Papers
Chenrong Huang et al.
Journal of chromatographic science, 52(7), 636-640 (2013-07-11)
A novel method has been developed for the determination of cefaclor in human plasma by ultra-performance liquid chromatography combined with tandem mass spectrometry (UPLC-MS-MS). The plasma was treated by a single step of protein precipitation with acetonitrile. The chromatographic separation
Jing Li et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 970, 77-85 (2014-09-23)
A highly selective and sensitive method for simultaneous quantitation of osthole, bergapten and isopimpinellin in rat plasma and tissues was developed by liquid chromatography-tandem quadrupole mass spectrometry (LC-MS/MS). After liquid-liquid extraction of samples with methyl tert-butyl ether, the analytes and
Raúl Pérez-Ortuño et al.
Analytical and bioanalytical chemistry, 407(28), 8463-8473 (2015-09-08)
A straightforward, high-throughput method was developed and fully validated for the simultaneous determination of the specific tobacco biomarkers nicotine and its main metabolite cotinine in a wide dynamic range and supporting the most common human biological matrices (urine, oral fluid
Zhouen Zhang et al.
Journal of labelled compounds & radiopharmaceuticals, 57(8), 540-549 (2014-07-06)
The nucleosides zidovudine (AZT), stavudine (d4T), and telbivudine (LdT) are approved for use in the treatment of human immunodeficiency virus (HIV) and hepatitis B virus (HBV) infections. To promote positron emission tomography (PET) imaging studies on their pharmacokinetics, pharmacodynamics, and
Youn Gee Seo et al.
Archives of pharmacal research, 38(2), 223-228 (2014-08-20)
The purpose of this study was to develop a novel tacrolimus-loaded solid self-emulsifying drug delivery system (SEDDS) using Labrafac as an oil phase. The ternary phase diagram was plotted with Labrafac, Labrasol and Lauroglycol used as an oil, surfactant and
Rachel Morrison et al.
Pharmaceutical research, 31(10), 2904-2917 (2014-05-06)
To design and synthesize chemoembolization particles for the delivery of Ophiobolin A (OphA), a promising fungal-derived chemotherapeutic, directly at the tumour location. To investigate cell death mechanism of OphA on a Rhabdomyosarcoma cancer (RD) cell line. Rhabdomyosarcoma is the most
Jef Stappaerts et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 90, 1-7 (2015-01-17)
The aim of this study was to evaluate the intestinal disposition of abiraterone acetate, an ester prodrug of the anticancer agent abiraterone. Stability of the prodrug and solubility and dissolution characteristics of both abiraterone and abiraterone acetate were monitored in
Joanne D Du et al.
International journal of pharmaceutics, 471(1-2), 358-365 (2014-06-01)
Targeted drug delivery to the buccal mucosa offers distinct advantages over oral delivery to the gastrointestinal tract including by-passing hepatic first-pass metabolism. However, the buccal route is often limited by low bioavailability, low drug loading and reduced residence time due
P G J Ter Horst et al.
European journal of clinical pharmacology, 71(12), 1493-1500 (2015-09-30)
Clomipramine is one of the drugs for depression during pregnancy; however, pharmacokinetic data of clomipramine and its active metabolite desmethylclomipramine in this vulnerable period are lacking. In this study, we describe clomipramine and desmethylclomipramine concentrations including their ratios during pregnancy.
Andreas von Bohl et al.
Malaria journal, 14, 435-435 (2015-11-06)
During development in human erythrocytes, Plasmodium falciparum parasites display a remarkable number of adhesive proteins on their plasma membrane. In the invasive merozoites, these include members of the PfMSP1 and PfAMA1/RON complexes, which facilitate contact between merozoites and red blood
Feng Zhang et al.
Fungal biology, 119(2-3), 114-124 (2015-03-10)
Aspergillus flavus, a common contaminant of crops and stored grains, can produce aflatoxins that are harmful to humans and other animals. Water activity (aw) is one of the key factors influencing both fungal growth and mycotoxin production. In this study
Elena V Piletska et al.
The Analyst, 140(9), 3113-3120 (2015-03-10)
Curcumin is a versatile anti-inflammatory and anti-cancer agent known for its low bioavailability, which could be improved by developing materials capable of binding and releasing drug in a controlled fashion. The present study describes the preparation of magnetic nano-sized Molecularly
Smruti Das et al.
Molecular biology reports, 42(11), 1545-1558 (2015-09-02)
The interactive effect of temperature with other climatic and soil factors has profound influences on the growth and development of rice. The responses of rice to high temperatures under field conditions are more important than those under the controlled conditions.
Rumi Tanoue et al.
Journal of chromatography. A, 1355, 193-205 (2014-06-25)
In the present study, a sensitive and accurate isotope dilution method was developed for the simultaneous determination of 17 polar pharmaceutical and personal care product (PPCP) residues (logKow=1.40-5.74), including 14 pharmaceuticals and 3 personal care products, in biological organs and
Radhika Buddidathi et al.
Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes, 51(1), 44-51 (2015-11-10)
This investigation was undertaken to compare the dissipation pattern of flubendiamide in capsicum fruits under poly-house and open field after giving spray applications at the recommended and double doses of 48 g a.i. ha(-1) and 96 g a.i. ha(-1). Extraction
Eun Ji Chung et al.
Nanomedicine : nanotechnology, biology, and medicine, 11(2), 479-487 (2014-09-10)
Peptide amphiphiles (PAs) are promising biomaterials for medical applications. To translate the use of PAs successfully from laboratories to clinics, in vivo studies regarding the safety of these nanomaterials are required. To examine the toxicity and clearance of PA biomaterials
Vivek Bansal et al.
International journal of pharmaceutics, 471(1-2), 377-384 (2014-06-19)
Aluminum based adjuvants have been used widely to induce long lasting protective immunity through vaccination. But reported incidences of toxicity and side effects of aluminum have raised concerns regarding their safety in childhood vaccines. The present study demonstrates the synergistic
Xia Li et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 978-979, 138-144 (2014-12-30)
A sensitive and rapid method based on formate-adduct ion detection was developed and fully validated for digoxin determination in rat plasma. For LC/MS/MS detection with formate-adducts as precursor ions, transitions of m/z 825.5→779.9 for digoxin and m/z 809.5→763.4 for the
John F Valliere-Douglass et al.
Journal of pharmaceutical sciences, 104(2), 652-665 (2014-12-04)
We report that a unique type of chemical modification occurs on lyophilized proteins. Freeze-dried mAbs and antibody-drug conjugates (ADCs) can be covalently modified with buffer and excipient molecules on the side chains of Glu, Asp, Thr, and Ser amino acids
Keisuke Ohsumi et al.
The Journal of antibiotics, 67(10), 707-711 (2014-05-29)
A novel antifungal agent, AS2077715, was isolated from the fermentation broth of a fungal strain (339855) identified as a new Capnodium species based on morphological characteristics and large-subunit ribosomal DNA sequencing. AS2077715 was isolated as a white powder via solvent
Tangeng Ma et al.
BMC research notes, 8, 687-687 (2015-11-20)
Use of allogeneic cancer cells-based immunotherapy for treatment of established prostate cancer (PCa) has only been marginally effective. One reason for failure could stem from the mismatch of antigenic signatures of vaccine cells and cancer in situ. Hence, it is
Salim Sioud et al.
Rapid communications in mass spectrometry : RCM, 28(22), 2389-2397 (2014-10-11)
The formation of ions during atmospheric pressure photoionization (APPI) mass spectrometry in the positive mode usually provides radical cations and/or protonated species. Intriguingly, during the analysis of some N-alkyl-substituted thieno[3,4-c]pyrrole-4,6-dione (TPD) derivatives synthesized in our laboratory, unusual [M-H](+) ion peaks
Marco Pistolozzi et al.
Drug metabolism and disposition: the biological fate of chemicals, 43(3), 344-352 (2014-12-17)
This work describes the sequential hydrolysis of bambuterol enantiomers and their monocarbamate metabolites (MONO) catalyzed by human butyrylcholinesterase (BChE) as well as the enzyme inhibition resulting from this process. Particular emphasis is given to the contribution given by MONO to
Qingce Zang et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 989, 91-97 (2015-03-31)
Usually, insufficient intratumoral concentration of therapeutic drugs is one of the reasons for tumor treatment failure. However, little is known about intratumoral distribution of bromocriptine in non-responding prolactinomas because of extremely low drug concentration and small prolactinoma tissue samples. In
Teresa L Parsons et al.
Antimicrobial agents and chemotherapy, 58(11), 6747-6757 (2014-09-04)
The quantification of antituberculosis drug concentrations in multinational trials currently requires the collection of modest blood volumes, centrifugation, aliquoting of plasma, freezing, and keeping samples frozen during shipping. We prospectively enrolled healthy individuals into the Tuberculosis Trials Consortium Study 29B
Vindhya Edpuganti et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 964, 153-163 (2013-10-19)
The cytochrome P450 metabolites of arachidonic acid (AA) are mostly present in tissues, such as the liver, as bound to phospholipids, with only a small fraction available as free acids. The purpose of this study was to develop and validate
Cong-Mei Cao et al.
Journal of chromatographic science, 53(7), 1044-1047 (2014-12-04)
An analytical method based on high-performance liquid chromatography-photodiode array detection was developed for the simultaneous determination of three anti-proliferative withanolides [withalongolide A ( 1: ), withaferin A ( 2: ) and withalongolide B ( 3: )] present in the aboveground
Chaolan Shi et al.
International immunopharmacology, 24(2), 211-218 (2014-12-17)
The sulfated polysaccharide from Porphyra was hypothesized to exhibit immunoregulatory, anti-tumor and anti-inflammatory activity, but its anti-allergic activity is not fully understood. Therefore, the aim of this study was to isolate sulfated polysaccharide from Porphyra haitanensis (PHPS) and investigate its
Nikolaos Lemonakis et al.
Talanta, 147, 402-409 (2015-11-26)
A multistage optimization of all the parameters affecting detection/response in an LTQ-orbitrap analyzer was performed, using a design of experiments methodology. The signal intensity, a critical issue for mass analysis, was investigated and the optimization process was completed in three
John Warner et al.
Talanta, 146, 279-284 (2015-12-24)
Solvent tolerance of immobilized enzymes is important for many biosensing and biotechnological applications. In this paper we report an acetylcholinesterase (AChE) biosensor based on chitosan that exhibits high solvent resistance and enables sensitive detection of pesticides in presence of a
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