Simultaneous determination of 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3 in human plasma by liquid chromatography-tandem mass spectrometry employing derivatization with a Cookson-type reagent.

Abstract:

:A rapid and highly sensitive LC-MS-MS method for simultaneous determination of 25-hydroxyvitamin D2 125(OH)D21 and 25-hydroxyvitamin D3 125(OH)D3] in human plasma has been developed using derivatization with a Cookson-type reagent, 4-12-(6,7-dimethoxy-4-methyl-3-oxo-3,4-dihydroquinoxalyl)ethyll-1,2,4-triazoline-3,5-dione (DMEQTAD). The derivatization with DMEQTAD significantly improved the ionization efficiencies of 25(OH)D2 and 25(OH)D3 with detection limits of 20 and 12.5 fmol (8 and 5 pg) per injection, respectively. The method employed two steps of solvent extraction but did not require chromatographic purifications for sample pretreatment. The determination was carried out by mass chromatography of the protonated molecular ions formed by atmospheric pressure chemical ionization operating in the positive-ion mode after the derivatization, and 25-hydroxyvitamin D4 was used as an internal standard. The intra-assay coefficients of variation were below 4.02 and 3.24% for 25(OH)D2 and 25(OH)D3, respectively, and the analytical recoveries of both compounds were quantitative. Assay linearity was obtained in the range of 0.05-1 ng per tube and the determination limit was 3 ng/ml for a 20 microl plasma aliquot, for each compound. The developed method was applied to plasma samples obtained from volunteers, two of whom had received vitamin D2 supplementation, and gave satisfactory results.

journal_name

Biol Pharm Bull

authors

Higashi T,Awada D,Shimada K

doi

10.1248/bpb.24.738

subject

Has Abstract

pub_date

2001-07-01 00:00:00

pages

738-43

issue

7

eissn

0918-6158

issn

1347-5215

journal_volume

24

pub_type

临床试验,杂志文章
  • Effects of Cu, Zn-superoxide dismutase delivered by genetically modified skin fibroblasts on cold-induced skin edema in rats.

    abstract::The effects of Cu, Zn-superoxide disumutase (SOD) delivered by genetically modified skin fibroblasts on cold-induced skin edema were studied in rats. Cold-induced skin edema was induced on the dorsal skin following transplantation of ILSOD cells, genetically modified skin fibroblasts which release secretable SOD prote...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.21.1379

    authors: Nishiguchi K,Komada F,Tanigawara Y,Sakai Y,Iwakawa S,Okumura K

    更新日期:1998-12-01 00:00:00

  • Reductive metabolism of stilbene oxide and styrene oxide to the olefins in rats.

    abstract::The present study provides the first evidence that stilbene oxide and styrene oxide are reductively metabolized to the corresponding olefins in rats. When cis- or trans-stilbene oxide was given orally to rats, both cis- and trans-stilbene were isolated from the urine and feces. Styrene was also isolated from the urine...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.23.265

    authors: Kitamura S,Shiraishi Y,Mita M,Sueki H,Maeda C,Tatsumi K

    更新日期:2000-02-01 00:00:00

  • Metabolism in vivo of 1-nitropyrene, an environmental pollutant, in fish.

    abstract::The in vivo metabolism of 1-nitropyrene, an important environmental pollutant, was examined in fish, focusing on nitroreduction followed by acylation. When goldfish were bathed in a solution of 1-nitropyrene or its reduction product, 1-aminopyrene, one or two metabolites were isolated from the solution, respectively. ...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.19.1524

    authors: Kitamura S,Tatsumi K

    更新日期:1996-11-01 00:00:00

  • ECa 233 Suppresses LPS-Induced Proinflammatory Responses in Macrophages via Suppressing ERK1/2, p38 MAPK and Akt Pathways.

    abstract::A current anti-inflammatory agent often targets the prevention of inflammatory disorder development. The standardized Centella asiatica ECa 233 extract has been previously reported for anti-inflammatory effect. This study aimed to investigate its anti-inflammatory effect and mechanisms of ECa 233 in lipopolysaccharide...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.b19-00248

    authors: Sukketsiri W,Tanasawet S,Moolsap F,Tantisira MH,Hutamekalin P,Tipmanee V

    更新日期:2019-01-01 00:00:00

  • Effects of Supplementary Seleno-L-methionine on Atopic Dermatitis-Like Skin Lesions in Mice.

    abstract::Effects of selenium supplementation on atopic dermatitis (AD) were investigated by administering seleno-L-methionine (SeMet) using a mouse model of AD caused by repeated application of 2,4,6-trinitrochlorobenzene (TNCB). BALB/c mice were sensitized with TNCB to the abdomen on day -7; then, TNCB was applied repeatedly ...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.b18-00349

    authors: Arakawa T,Sugiyama T,Matsuura H,Okuno T,Ogino H,Sakazaki F,Ueno H

    更新日期:2018-01-01 00:00:00

  • Binding affinities of NKG2D and CD94 to sialyl Lewis X-expressing N-glycans and heparin.

    abstract::Lectin-like receptors natural killer group 2D (NKG2D) and CD94 on natural killer (NK) cells bind to α2,3-NeuAc-containing N-glycans and heparin/heparan sulfate (HS). Using recombinant glutathione S-transferase-fused extracellular lectin-like domains of NKG2D (rGST-NKG2Dlec) and CD94 (rGST-CD94lec), we evaluated their ...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.34.8

    authors: Higai K,Suzuki C,Imaizumi Y,Xin X,Azuma Y,Matsumoto K

    更新日期:2011-01-01 00:00:00

  • Oxaliplatin Alters Expression of T1R2 Receptor and Sensitivity to Sweet Taste in Rats.

    abstract::As one of the adverse effects of oxaliplatin, a key agent in colon cancer chemotherapy, a taste disorder is a severe issue in a clinical situation because it decreases the quality of life of patients. However, there is little information on the mechanism underlying the oxaliplatin-induced taste disorder. Here, we exam...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.b15-00935

    authors: Ohishi A,Nishida K,Yamanaka Y,Miyata A,Ikukawa A,Yabu M,Miyamoto K,Bansho S,Nagasawa K

    更新日期:2016-01-01 00:00:00

  • Human Placental Extract as a Subcutaneous Injection Is Effective in Chronic Fatigue Syndrome: A Multi-Center, Double-Blind, Randomized, Placebo-Controlled Study.

    abstract::Chronic fatigue (CF) is a common reason for consulting a physician due to affecting quality of life, but only a few effective treatments are available. The aim of this study was to examine the effectiveness of subcutaneous injection of the human placental extract (HPE) on medically indescribable cases of CF and safety...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章,多中心研究,随机对照试验

    doi:10.1248/bpb.b15-00623

    authors: Park SB,Kim KN,Sung E,Lee SY,Shin HC

    更新日期:2016-05-01 00:00:00

  • Association of Protein and Endotoxin in Outdoor Air with Emergency Department Visits for Children and Adults with Asthma in Fukuoka, Japan.

    abstract::We examined the association of biological components in airborne particles, i.e., proteins and endotoxins, in outdoor air with asthma exacerbation in the Fukuoka metropolitan area, Fukuoka, Japan. Data on emergency department (ED) visits for asthma in children (age, 0-14 years) and adults (age, 15-64 years) were colle...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.b20-00297

    authors: Ishida T,Khan MS,Kodama H,Uejima Y,Kawase Y,Matsumoto T,Yamamura Y,Sera N,Gotou T,Hirakawa M,Yano Y,Shima M,Yamagishi N,Wakabayashi K,Watanabe T

    更新日期:2020-01-01 00:00:00

  • Highly acidic C-terminal domain of pp32 is required for the interaction with histone chaperone, TAF-Ibeta.

    abstract::We have previously reported that INHAT (inhibitor of acetyltransferases) complex subunits, TAF (template activating factor)-Ialpha, TAF-Ibeta and pp32 can inhibit histone acetylation and HAT (histone acetyltransferase)-dependent transcription by binding to histones. Evidences are accumulating that INHAT complex subuni...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.29.2395

    authors: Lee IS,Oh SM,Kim SM,Lee DS,Seo SB

    更新日期:2006-12-01 00:00:00

  • Nitric oxide stimulates elastin expression in chick aortic smooth muscle cells.

    abstract::Nitric oxide (NO), an endothelium-dependent relaxing factor, regulates relaxation, proliferation, and migration of smooth muscle cells (SMCs) and most likely attenuates developing vascular disease such as atherosclerosis. We investigated whether or not NO is associated with regulation of aortic elasticity. S-Nitrosogl...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.24.461

    authors: Sugitani H,Wachi H,Tajima S,Seyama Y

    更新日期:2001-05-01 00:00:00

  • A rat model of early sepsis: relationships between gentamicin pharmacokinetics and systemic and renal effects of bacterial lipopolysaccharide combined with interleukin-2.

    abstract::A rat model of early sepsis induced by lipopolysaccharide (LPS) combined with interleukin-2 (IL-2) was developed. The primary aim was to assess the pharmacokinetics of gentamicin and sepsis-induced pathophysiological changes. Moreover, the effects on the glomerular filtration rate and tubular function were studied in ...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.b12-00205

    authors: Studena S,Martinkova J,Slizova D,Krs O,Senkerik M,Springer D,Chládek J

    更新日期:2012-01-01 00:00:00

  • Hepatic injury-specific conversion of mouse plasma hyaluronan binding protein to the active hetero-dimer form.

    abstract::Plasma hyaluronan binding protein (PHBP) is produced only in liver and kidney in mouse. The induction of PHBP mRNA and the conversion of pro PHBP to the active hetero-dimer form were studied after CCl4, D-galactosamine, HgCl2 or turpentine administration and after partial hepatectomy. The results indicated that the ad...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.24.892

    authors: Choi-Miura NH,Otsuyama K,Sano Y,Saito K,Takahashi K,Tomita M

    更新日期:2001-08-01 00:00:00

  • Osthole reverses beta-amyloid peptide cytotoxicity on neural cells by enhancing cyclic AMP response element-binding protein phosphorylation.

    abstract::Accumulation of β-amyloid peptide (Aβ) in the brain plays an important role in the pathogenesis of Alzheimer’s disease (AD). Previous studies have demonstrated the neuroprotective role of osthole against oxygen and glucose deprivation in cortical neurons. However, the effects of osthole on Aβ-induced neurotoxicity in ...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.b13-00561

    authors: Hu Y,Wen Q,Liang W,Kang T,Ren L,Zhang N,Zhao D,Sun D,Yang J

    更新日期:2013-01-01 00:00:00

  • TJN-331 improves anti-glomerular basement membrane nephritis by inhibiting the production of intraglomerular transforming growth factor-beta1.

    abstract::Transforming growth factor-beta1 (TGF-beta1) plays an important role in the development of glomerulonephritis. The study of experimental glomerulonephritis in rats was performed to examine the antinephritic effects of TJN-331, a new herbally-derived chemical compound. To clarify the action of TJN-331 ((E)-N-(3,4-dimet...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.33.1349

    authors: Saegusa Y,Sadakane C,Koseki J,Hasegawa Y,Shindo S,Maruyama H,Takeda S,Takeda H,Hattori T

    更新日期:2010-01-01 00:00:00

  • Pharmacokinetic analysis program based on tank-in-series model, MULTI(TIS), for evaluation of capacity-limited local disposition.

    abstract::A pharmacokinetic analysis program based on a tank-in-series model, MULTI(TIS), was developed for the evaluation of dose-dependency in the local disposition of a drug. The program written in FORTRAN was constructed by expanding MULTI(RUNGE). The reliability of MULTI(TIS) was verified by analyzing the experimental data...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.21.1338

    authors: Fukumura K,Yamaoka K,Higashimori M,Nakagawa T

    更新日期:1998-12-01 00:00:00

  • Detection of new antigenic proteins in Japanese cedar pollen.

    abstract::In Japan, an increasing number of people suffer from pollenosis, a typical atopic disease. Japanese cedar (Cryptomeria japonica) pollen is the most common allergen that causes pollenosis. Although Cry j 1 and Cry j 2 are the common allergenic proteins contained in the pollen, there is a small population of patients wh...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.29.1162

    authors: Matsumura D,Nabe T,Mizutani N,Fujii M,Kohno S

    更新日期:2006-06-01 00:00:00

  • Antimalarial activity of lavandulyl flavanones isolated from the roots of Sophora flavescens.

    abstract::Four lavandulyl flavanones, (2S)-2'-methoxykurarinone (1), sophoraflavanone G (2), leachianone A (3), and (-)-kurarinone (4), which are isolated from the roots of Sophora flavescens have been tested for in vitro antimalarial activity against Plasmodium falciparum. Compounds 1-3 showed moderate antimalarial activities ...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.27.748

    authors: Kim YC,Kim HS,Wataya Y,Sohn DH,Kang TH,Kim MS,Kim YM,Lee GM,Chang JD,Park H

    更新日期:2004-05-01 00:00:00

  • Enhanced Oral Bioavailability of Pueraria Flavones by a Novel Solid Self-microemulsifying Drug Delivery System (SMEDDS) Dropping Pills.

    abstract::To improve bioavailability of pueraria flavones (PF), a self-microemulsifying drug delivery system (SMEDDS) dropping pills composed of PF, Crodamol GTCC, Maisine 35-1, Cremophor RH 40, 1,2-propylene glycol and polyethylene glycol 6000 (PEG6000) was developed. Particle size, zeta potential, morphology and in vitro drug...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.b15-00854

    authors: Guan Q,Zhang G,Sun S,Fan H,Sun C,Zhang S

    更新日期:2016-05-01 00:00:00

  • Low density lipoprotein (LDL)-antioxidant flavonoids from roots of Sophora flavescens.

    abstract::Oxidation of low density lipoprotein (LDL) is strongly implicated as a key process in the onset of atherosclerosis. In this study, nine alkylated (C10-C5) flavonoids from Sophora flavescens were examined for their inhibitory effects on copper-induced LDL oxidation. Of the flavonoids tested, sophoraflavanone G (1), kur...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.31.2097

    authors: Jeong TS,Ryu YB,Kim HY,Curtis-Long MJ,An S,Lee JH,Lee WS,Park KH

    更新日期:2008-11-01 00:00:00

  • Effects of nebracetam on synaptosomal monoamine uptake of striatal and hippocampal regions in rats.

    abstract::Effects of nebracetam, a novel nootorpic agent, on the synaptosomal uptake of neurotransmitter monoamines of the brain regions were examined. Striatal and hippocampal synaptosomes were isolated by the Percoll gradient method, and the striatal dopamine uptake and hippocampal serotonin uptake were measured in the presen...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.20.360

    authors: Takeo S,Hayashi H,Tadokoro M,Takagi K,Miyake K,Takagi N,Oshikawa S

    更新日期:1997-04-01 00:00:00

  • Clearance of CD43-capped cells by macrophages: capping alone leads to phagocytosis.

    abstract::Apoptotic cells must be recognized early for phagocytosis to ensure that their toxic contents do not damage neighboring cells. In some cases this is achieved via CD43-capped membrane glycoproteins, the sialylpolylactosaminyl chains of which serve as ligands for phagocytosis by macrophages. However, because many additi...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.35.551

    authors: Oguri E,Miki Y,Hirano K,Yamanaka M,Beppu M

    更新日期:2012-01-01 00:00:00

  • High-density lipoprotein-associated alpha-tocopherol uptake by human retinal pigment epithelial cells (ARPE-19 Cells): the irrelevance of scavenger receptor class B, type I.

    abstract::The purpose of this study was to determine the high-density lipoprotein (HDL)-associated alpha-tocopherol (alpha-tocopherol-HDL) transport and clarify the contribution of scavenger receptor class B, type I (SR-BI) to the uptake in the human retinal pigment epithelial cell line (ARPE-19 cells). [(3)H]alpha-Tocopherol-H...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.32.1131

    authors: Akanuma S,Yamamoto A,Okayasu S,Tachikawa M,Hosoya K

    更新日期:2009-06-01 00:00:00

  • Protective effects of berberine on doxorubicin-induced hepatotoxicity in mice.

    abstract::Doxorubicin, a very potent and often used anti-cancer drug, is largely limited due to the dose-related toxic effects. The present study investigated whether berberine, a natural product alkaloid, can reduce the liver injury induced by doxorubicin. Mice of either gender were randomly divided into four groups: the contr...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.35.796

    authors: Zhao X,Zhang J,Tong N,Chen Y,Luo Y

    更新日期:2012-01-01 00:00:00

  • Beneficial effects of Momordica charantia seeds in the treatment of STZ-induced diabetes in experimental rats.

    abstract::The aim of the present study was to evaluate the effect of the aqueous extract of seeds of two varieties, namely a country and hybrid variety of Momordica charantia (MCSEt1 and MCSEt2) on oxidative stress in plasma and pancreas of streptozotocin (STZ) induced diabetic rats. Oral administration of each of the seed extr...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.28.978

    authors: Sathishsekar D,Subramanian S

    更新日期:2005-06-01 00:00:00

  • Rho kinase inhibition by fasudil has anti-inflammatory effects in hypercholesterolemic rats.

    abstract::Inhibition of Rho kinase (ROCK) ameliorates many cardiovascular dysfunctions. The aim of the current study is to investigate the anti-inflammatory effects of fasudil, a selective ROCK inhibitor, on high cholesterol diet-induced hypercholesterolemic rats and its possible mechanisms. In hypercholesterolemic rats, we fou...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.34.1684

    authors: Ma Z,Zhang J,Du R,Ji E,Chu L

    更新日期:2011-01-01 00:00:00

  • The pH-dependent formation of PEGylated bovine lactoferrin by branched polyethylene glycol (PEG)-N-hydroxysuccinimide (NHS) active esters.

    abstract::PEGylation is an established method for improving the pharmacokinetic properties and pharmacodynamic effects of therapeutic proteins. Amino conjugation by N-hydroxysuccinimide activated polyethylene glycol (PEG-NHS) represents the most common modification of the target proteins. In this study, we compared the reaction...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.32.523

    authors: Nojima Y,Iguchi K,Suzuki Y,Sato A

    更新日期:2009-03-01 00:00:00

  • Occurrence of a novel L-2,4-diaminobutyrate decarboxylase activity in some species of Enterobacteriaceae, and purification and characterization of the enzymes of Enterobacter aerogenes and Serratia marcescens.

    abstract::L-2,4-Diaminobutyrate decarboxylase (DABA DC) is a novel enzyme yielding 1,3-diaminopropane (DAP) from DABA, which has previously been purified from strains of the genera Vibrio and Acinetobacter. In this study, we also detected DABA DC activity in the species of Enterobacteriaceae: E. aerogenes, E. cloacae, E. agglom...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.19.1298

    authors: Yamamoto S,Mutoh N,Ikai H,Nagasaka M

    更新日期:1996-10-01 00:00:00

  • Inhibition of anandamide amidase activity in mouse brain microsomes by cannabinoids.

    abstract::Mouse brain microsomes contain an amidase that catalyzes the hydrolysis of N-arachidonylethanolamide to arachidonic acid and ethanolamine. The enzymatic activity is dependent on the protein concentration of the microsomes and observed over a wide range of pH, 7.4 to 9.5. Kinetic analysis indicated that K(m) (microM) a...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.19.1109

    authors: Watanabe K,Kayano Y,Matsunaga T,Yamamoto I,Yoshimura H

    更新日期:1996-08-01 00:00:00

  • Relationship between lipophilicity and skin permeability of various drugs from an ethanol/water/lauric acid system.

    abstract::The in vitro skin permeability of 16 drugs with a wide range of lipophilicity (log P; -0.95-4.40) was evaluated by the use of an ethanol/water (60/40) binary vehicle with or without lauric acid as a permeation enhancer. The enhancing effect by the addition of lauric acid to the ethanol/water (60/40) binary vehicle cou...

    journal_title:Biological & pharmaceutical bulletin

    pub_type: 杂志文章

    doi:10.1248/bpb.17.1421

    authors: Lee CK,Uchida T,Kitagawa K,Yagi A,Kim NS,Goto S

    更新日期:1994-10-01 00:00:00