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Abstract
The objective of this study is to investigate the effect of B vitamins-fortified foods on primary school children. A controlled trial was conducted in 101 normal primary school children aged 9-11 years. They were randomly assigned to supplemental control group (S-control, n=36), riboflavin supplementation group (+riboflavin 0.625 mg/day, n=32), and B vitamin compound supplementation group (+riboflavin 0.625 mg/day, +thiamin 0.512 mg/day, +nicotinic acid 0.365 mg/day, +folic acid 0.13 mg/day, n=33) based on school classes. Urinary riboflavin excretion and erythrocyte glutathione reductase activity coefficient (EGRAC) along with erythrocyte transketolase activity (ETKA) were used to evaluate B vitamin levels in the children. AYP index, an index reflecting the brain performance ability, was chosen to assess the children's study abilities. Health education was carried out to help children and their parents adopt scientific dietary concepts. The urinary riboflavin excretion was higher in two supplementation groups (435.24 +/- 153.3 microg/g creatinine, 374.6 +/- 144.6 microg/g creatinine) than in S-control group (235.1 +/- 86.2 microg/g creatinine). Average values of EGRAC were lower in two supplementation groups (0.90 +/- 0.11, 0.80 +/- 0.10) than in S-control group (1.08 +/- 0.25). At the same time, the percentage of thiamine pyrophosphate (TPP%) decreased from 63.69 +/- 28.04 to 42.16 +/- 16.31 in B vitamin compound supplementation group. Meanwhile, AYP index increased at the end of the supplementation in two supplementation groups. B vitamins supplementation can significantly increase B vitamin level in children. Biochemical activities of riboflavin and thiamin can improve with the intake of fortified foods. The effect of B vitamin compound supplementation is better than that of single riboflavin supplementation when the effect of riboflavin's biofunction is considered. In addition, micronutrient supplementation appears to assist children's study abilities.
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Affiliation(s)
- Y Y Jiang
- Chinese Center for Disease Control and Prevention, Beijing, China.
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Patil SS, Srivastava AK. Development and validation of a liquid chromatography method for the simultaneous determination of eight water-soluble vitamins in multivitamin formulations and human urine. J AOAC Int 2014; 96:1273-80. [PMID: 24645504 DOI: 10.5740/jaoacint.12-208] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A simple, precise, and rapid RPLC method has been developed without incorporation of any ion-pair reagent for the simultaneous determination of vitamin C (C) and seven B-complex vitamins, viz, thiamine hydrochloride (B1), pyridoxine hydrochloride (B6), nicotinamide (B3), cyanocobalamine (B12), folic acid, riboflavin (B2), and 4-aminobenzoic acid (Bx). Separations were achieved within 12.0 min at 30 degrees C by gradient elution on an RP C18 column using a mobile phase consisting of a mixture of 15 mM ammonium formate buffer and 0.1% triethylamine adjusted to pH 4.0 with formic acid and acetonitrile. Simultaneous UV detection was performed at 275 and 360 nm. The method was validated for system suitability, LOD, LOQ, linearity, precision, accuracy, specificity, and robustness in accordance with International Conference on Harmonization guidelines. The developed method was implemented successfully for determination of the aforementioned vitamins in pharmaceutical formulations containing an individual vitamin, in their multivitamin combinations, and in human urine samples. The calibration curves for all analytes showed good linearity, with coefficients of correlation higher than 0.9998. Accuracy, intraday repeatability (n = 6), and interday repeatability (n = 7) were found to be satisfactory.
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Ikezaki H, Furusyo N, Okada K, Ihara T, Hayashi T, Ogawa E, Kainuma M, Murata M, Hayashi J. The utility of urinary myo-inositol as a marker of glucose intolerance. Diabetes Res Clin Pract 2014; 103:88-96. [PMID: 24377833 DOI: 10.1016/j.diabres.2013.11.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Accepted: 11/27/2013] [Indexed: 02/05/2023]
Abstract
OBJECTIVE The most common screening tests for glucose intolerance are fasting plasma glucose (FPG) and glycated hemoglobin (HbA1c). Because it reflects the current status of hyperglycemia, urinary myo-inositol (UMI) may be useful. We evaluated UMI as a screening tool for glucose intolerance. DESIGN AND METHODS A cross-sectional, community-based population study of 1057 Japanese residents. 173 with an FPG level between 5.5 and 6.9 mmol/L and an HbA1c under 6.5% had an oral glucose tolerance test. We measured UMI level before (fasting UMI) and 2h after (2h-UMI) glucose ingestion. Δ-UMI was defined as the difference between fasting UMI and 2h-UMI. RESULTS Δ-UMI, 2h-UMI and HbA1c levels significantly increased as glucose intolerance worsened. Δ-UMI level was significantly positively correlated with 2h-UMI level (r=0.896, p<0.001). Using cutoff levels from receiver operating characteristic (ROC) analyses, the sensitivity of Δ-UMI (82.1%) and 2h-UMI (79.3%) were higher than that of HbA1c (48.3%). The area under the ROC curve values for Δ-UMI (0.903) and 2h-UMI (0.891) were higher than that for HbA1c (0.785). CONCLUSIONS 2h-UMI is useful as a non-invasive screening of glucose intolerance.
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Affiliation(s)
- Hiroaki Ikezaki
- Department of Environmental Medicine and Infectious Disease, Kyushu University, Fukuoka, Japan
| | - Norihiro Furusyo
- Department of Environmental Medicine and Infectious Disease, Kyushu University, Fukuoka, Japan; Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan.
| | - Kyoko Okada
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Takeshi Ihara
- Department of Environmental Medicine and Infectious Disease, Kyushu University, Fukuoka, Japan
| | - Takeo Hayashi
- Department of Environmental Medicine and Infectious Disease, Kyushu University, Fukuoka, Japan
| | - Eiichi Ogawa
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Mosaburo Kainuma
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Masayuki Murata
- Department of Environmental Medicine and Infectious Disease, Kyushu University, Fukuoka, Japan; Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Jun Hayashi
- Department of Environmental Medicine and Infectious Disease, Kyushu University, Fukuoka, Japan; Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
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Patil SS, Srivastava AK. Development and validation of rapid ion-pair RPLC method for simultaneous determination of certain B-complex vitamins along with vitamin C. J AOAC Int 2012; 95:74-83. [PMID: 22468344 DOI: 10.5740/jaoacint.11-014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A rapid, simple, and accurate ion-pair RPLC method has been developed for simultaneous analysis of vitamin C and major B-complex vitamins. An RP C18 column thermostated at 30 degrees C was used with gradient elution of mobile phase comprising 10 mM potassium dihydrogen phosphate buffer (containing 3 mM sodium hexane-1-sulfonate, adjusted to pH 2.80 with o-phosphoric acid) and methanol at a flow rate of 1.0 mL/min to achieve the best possible separation and resolution of all vitamins in about 11.00 min. The detection was performed at 274 nm. The method has been implemented successfully for simultaneous determination of vitamins present in 12 multivitamin/multimineral pharmaceutical preparations, as well as in human urine. Typical validation characteristics were evaluated in accordance with International Conference on Harmonization guidelines. Good linearity over the investigated concentration levels was observed. Intraday repeatability was < or = 2.0%, and interday variation was < or = 2.6%, for all vitamins. The method can be used for assay of these vitamins over a wide concentration range with good precision and accuracy; hence, it would be appropriate for routine QC as well as in clinical analysis.
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Affiliation(s)
- Suyog S Patil
- University of Mumbai, Department of Chemistry, Vidyanagari, Santacruz (East), Mumbai 400098, India
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Pindolia K, Jordan M, Guo C, Matthews N, Mock DM, Strovel E, Blitzer M, Wolf B. Development and characterization of a mouse with profound biotinidase deficiency: a biotin-responsive neurocutaneous disorder. Mol Genet Metab 2011; 102:161-9. [PMID: 21051254 PMCID: PMC3053066 DOI: 10.1016/j.ymgme.2010.10.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Revised: 10/06/2010] [Accepted: 10/06/2010] [Indexed: 10/19/2022]
Abstract
Biotinidase deficiency is the primary enzymatic defect in biotin-responsive, late-onset multiple carboxylase deficiency. Untreated children with profound biotinidase deficiency usually exhibit neurological symptoms including lethargy, hypotonia, seizures, developmental delay, sensorineural hearing loss and optic atrophy; and cutaneous symptoms including skin rash, conjunctivitis and alopecia. Although the clinical features of the disorder markedly improve or are prevented with biotin supplementation, some symptoms, once they occur, such as developmental delay, hearing loss and optic atrophy, are usually irreversible. To prevent development of symptoms, the disorder is screened for in the newborn period in essentially all states and in many countries. In order to better understand many aspects of the pathophysiology of the disorder, we have developed a transgenic biotinidase-deficient mouse. The mouse has a null mutation that results in no detectable serum biotinidase activity or cross-reacting material to antibody prepared against biotinidase. When fed a biotin-deficient diet these mice develop neurological and cutaneous symptoms, carboxylase deficiency, mild hyperammonemia, and exhibit increased urinary excretion of 3-hydroxyisovaleric acid and biotin and biotin metabolites. The clinical features are reversed with biotin supplementation. This biotinidase-deficient animal can be used to study systematically many aspects of the disorder and the role of biotinidase, biotin and biocytin in normal and in enzyme-deficient states.
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Affiliation(s)
- Kirit Pindolia
- Department of Medical Genetics, Henry Ford Hospital, Detroit, MI 48202
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201
| | - Megan Jordan
- Department of Medical Genetics, Henry Ford Hospital, Detroit, MI 48202
| | - Caiying Guo
- Howard Hughes Medical Institute, Janelia Farm, Ashburn, VA 20147
| | - Nell Matthews
- Department of Biochemistry and Molecular Biology, Little Rock, AR 72205
| | - Donald M. Mock
- Department of Biochemistry and Molecular Biology, Little Rock, AR 72205
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72205
| | - Erin Strovel
- Division of Human Genetics, Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD 21201
| | - Miriam Blitzer
- Division of Human Genetics, Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD 21201
| | - Barry Wolf
- Department of Medical Genetics, Henry Ford Hospital, Detroit, MI 48202
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201
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Menon R, Tolbert D, Cefali E. The comparative bioavailability of an extended-release niacin and lovastatin fixed dose combination tablet versus extended-release niacin tablet, lovastatin tablet and a combination of extended-release niacin tablet and lovastatin tablet. Biopharm Drug Dispos 2007; 28:297-306. [PMID: 17571283 DOI: 10.1002/bdd.555] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Lovastatin and extended-release (ER) niacin in a fixed dose combination (Advicor) is approved for the treatment of dyslipidemia. Since both drugs are extensively metabolized, this study investigated the bioavailability and pharmacokinetics of their co-administration following single-dose administration. In a 4-way crossover study 40 subjects received: two 1000/20 Advicor tablets (ADV), two 1000 mg niacin ER tablets (NSP), two 20mg lovastatin tablets (Mevacor; MEV), and two niacin ER 1000 mg tablets with two lovastatin 20mg tablets (NSP+MEV). Plasma was assayed for niacin, nicotinuric acid (NUA), lovastatin, lovastatin acid and HMGCoA reductase inhibition. Urine was assayed for niacin and its metabolites, NUA, N-methylnicotinamide and N-methyl-2pyridone-5-carboxamide. Least square mean ratios and 90% confidence intervals for C(max) and AUC((0-t)) were determined for NSP+MEV versus MEV or NSP, ADV versus MEV or NSP, and ADV versus NSP+MEV. Co-administration of niacin and lovastatin did not significantly influence C(max) and AUC((0-t)) of lovastatin, niacin, NUA and total urinary recovery of niacin and metabolites. A 22 to 25% decrease in lovastatin acid C(max) was observed while lovastatin acid AUC((0-t)) was not affected. The HMGCoA reductase inhibition C(max) and AUC((0-t)) were not affected indicating that the difference in lovastatin acid C(max) was not clinically relevant.
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Affiliation(s)
- R Menon
- Kos Pharmaceuticals Inc, Weston, FL 33326, USA.
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Ahmed IS, Ayres JW. Bioavailability of riboflavin from a gastric retention formulation. Int J Pharm 2006; 330:146-54. [PMID: 17034968 DOI: 10.1016/j.ijpharm.2006.09.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2006] [Revised: 09/03/2006] [Accepted: 09/09/2006] [Indexed: 11/24/2022]
Abstract
A gastric retention formulation (GRF) made of naturally occurring carbohydrate polymers and containing riboflavin was tested in vitro for swelling and dissolution characteristics as well as in fasting dogs for gastric retention. The bioavailability of riboflavin, a drug with a limited absorption site in the upper small intestine, from the GRF was studied in fasted healthy humans and compared to an immediate release formulation. It was found that when the GRF is dried and immersed in gastric juice it swells rapidly and releases its drug content in a zero-order fashion for a period of 24 h. In vivo studies in dogs showed that a rectangular shaped GRF stayed in the stomach of fasted dogs for more than 9 h, then disintegrated and reached the colon in 24 h. Endoscopic studies in dogs showed that the GRF hydrates and swells back to about 75% of its original size in 30 min. These in vivo results correlated with in vitro results. Pharmacokinetic parameters determined from urinary excretion data from six human subjects under fasting conditions showed that bioavailability depended on the size of the GRF. The biostudy indicated that bioavailability of riboflavin from a large size GRF was more than triple that measured after administration of an immediate release formulation. Deconvolved input functions from biostudy data suggest that the large size GRF stayed in the stomach for about 15 h.
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Affiliation(s)
- Iman S Ahmed
- College of Pharmacy, Oregon State University, Corvallis, OR 97333, USA.
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Shibata K, Takahashi C, Fukuwatari T, Sasaki R. Effects of excess pantothenic acid administration on the other water-soluble vitamin metabolisms in rats. J Nutr Sci Vitaminol (Tokyo) 2006; 51:385-91. [PMID: 16521696 DOI: 10.3177/jnsv.51.385] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
To acquire the data concerning the tolerable upper intake level which prevents health problems from an excessive intake of pantothenic acid, an animal experiment was done. Rats of the Wistar strain (male, 3 wk old) were fed on a diet which contains 0%, 0.0016% (control group), 1%, or 3% calcium pantothenate for 29 d. The amount of weight increase, the food intake, and the organ weights were measured, as well as the pantothenic acid contents in urine, the liver and blood. Moreover, to learn the influence of excessive pantothenic acid on other water-soluble vitamin metabolism, thiamin, riboflavin, a vitamin B6 catabolite, the niacin catabolites, and ascorbic acid in urine were measured. As for the 3% addition group, enlargement of the testis, diarrhea, and hair damage were observed, and the amount of weight increase and the food intake were less than those of the control group. However, abnormality was not seen in the 1% addition group. The amount of pantothenic acid in urine, the liver, and blood showed a high correlation with intake level of pantothenic acid. It was only for 4-pyridoxic acid, a vitamin B6 catabolite, in urine that a remarkable difference was observed against the control group. Moreover, the (2-Py+4-Py)/MNA excretion ratio for these metabolites of the nicotinamide also indicated a low value in the 3% pantothenic acid group. As for the calcium pantothenate, it was found that the 3% level in the diet was the lowest-observed-adverse-effect-level (LOAEL) and the 1% level was the no-observed-adverse-effect-level (NOAEL).
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Affiliation(s)
- Katsumi Shibata
- Laboratory of Food Science, Department of Life Style Studies, School of Human Cultures, The University of Shiga Prefecture, Hikone, Shiga 522-8533, Japan.
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Lofgren IE, Herron KL, West KL, Zern TL, Brownbill RA, Ilich JZ, Koo SI, Fernandez ML. Weight loss favorably modifies anthropometrics and reverses the metabolic syndrome in premenopausal women. J Am Coll Nutr 2006; 24:486-93. [PMID: 16373945 DOI: 10.1080/07315724.2005.10719494] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVE To determine the effects of a weight loss program, including dietary modifications, increased physical activity and dietary supplement (L-carnitine or placebo) on anthropometrics, leptin, insulin, the metabolic syndrome (MS) and insulin resistance in overweight /obese premenopausal women. METHODS Participants consumed a hypocaloric diet; 30% protein, 30% fat and 40% carbohydrate in addition to increasing number of steps/day. Carnitine supplementation followed a randomized double blind protocol. Protocol lasted for 10 weeks. Seventy subjects (35 in the control and 35 in the carnitine group) completed the intervention. Anthropometrics, plasma insulin and leptin concentrations and body composition were measured. The number of subjects with the MetSyn and insulin resistance, were assessed at baseline and post-intervention. RESULTS Because there were no significant differences between the carnitine and the placebo groups for all measured parameters, participants were grouped together for all analysis. Subjects decreased total energy (-26.6%, p < 0.01) and energy from carbohydrate (-17.3%, p < 0.01) and increased energy from protein by 67% (p < 0.01) and number of steps/day (42.6%, p < 0.01). Body weight (-4.6%, p < 0.001), body mass index (-4.5%, p < 0.01), waist circumference (-6.5%, p < 0.01), total fat mass (-1.7%, p < 0.01), trunk fat mass (-2.0%, p < 0.01), insulin (- 17.9%, p < 0.01) and leptin (-5.9%, p < 0.05) decreased after the intervention. Ten of 19 participants with insulin resistance became insulin sensitive and 7 of 8 participants with the MetSyn no longer had the syndrome after the intervention. CONCLUSION Moderate increases in physical activity and a hypocaloric/high protein diet resulted in multiple beneficial effects on body anthropometrics and insulin sensitivity. Realistic dietary and physical activity goals must be the focus of intervention strategies for overweight and obese individuals.
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Affiliation(s)
- Ingrid E Lofgren
- University of Connecticut, Department of Nutritional Sciences 3624 Horsebarn Road Extension, U 4017, Storrs, CT 06269, USA
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Stops F, Fell JT, Collett JH, Martini LG, Sharma HL, Smith AM. Citric acid prolongs the gastro-retention of a floating dosage form and increases bioavailability of riboflavin in the fasted state. Int J Pharm 2005; 308:14-24. [PMID: 16343829 DOI: 10.1016/j.ijpharm.2005.09.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2005] [Accepted: 09/30/2005] [Indexed: 11/25/2022]
Abstract
A floating dosage form based on calcium alginate beads has been developed. Riboflavin, was selected as the model drug and successfully incorporated into calcium alginate beads. The aims of the current study were to: (a) assess the influence of prolonged gastro-retention on the bioavailability of riboflavin from freeze dried calcium alginate beads administered under varying conditions of food intake and (b) to investigate the potential of citric acid to delay the gastric emptying of the calcium alginate beads. Gamma scintigraphy was selected as the method to monitor the movement of the calcium alginate beads in vivo. Riboflavin concentrations in the urine were analysed by HPLC. Prolonged gastro-retention can be achieved, in the fasted state, when citric acid solution is used as an administering vehicle. However, prolonged gastro-retention is not achieved to the same extent when the gastric emptying times are compared to those obtained in the fed state. The bioavailability of riboflavin improved when calcium alginate beads were administered in the fasted state with citric acid solution, compared to the bioavailability obtained when the calcium alginate beads were administered in the absence of citric acid.
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Affiliation(s)
- Frances Stops
- School of Pharmacy and Pharmaceutical Sciences, University of Manchester, Manchester M13 9PL, UK
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Chatzimichalakis PF, Samanidou VF, Verpoorte R, Papadoyannis IN. Development of a validated HPLC method for the determination of B-complex vitamins in pharmaceuticals and biological fluids after solid phase extraction. J Sep Sci 2004; 27:1181-8. [PMID: 15537074 DOI: 10.1002/jssc.200401858] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
An HPLC method was developed for the simultaneous determination of seven water-soluble vitamins, viz. thiamine, riboflavin, nicotinic acid, nicotinamide, pyridoxine, cyanocobalamin, and folic acid, in multivitamin pharmaceutical formulations and biological fluids (blood serum and urine). Separation was achieved at ambient temperature on a Phenomenex Luna C18 (150 x 4.6 mm) analytical column. Gradient elution was performed starting at a 99:1 A:B v/v composition, where A: 0.05 M CH3COONH4/CH3OH (99/1) and B: H2O/CH3OH (50/50), at a flow rate of 0.8 mL/min. After a 4-min isocratic elution the composition was changed to 100% of B in 18 min and elution continued isocratically for 8 min. Detection was performed with a photodiode array detector at 280 nm. Each vitamin was quantitatively determined at its maximum wavelength. Spectral comparison was used for peak identification in real samples. Detection limits were in the range of 1.6-3.4 ng, per 20-microL injection, while linearity held up to 25 ng/microL. Accuracy, intra-day repeatability (n = 6), and inter-day precision (n = 7) were found to be satisfactory. Theobromine (2 ng/microL) was used as internal standard. Sample preparation of biological fluids was performed by SPE on Supelclean LC-18 cartridges with methanol-water 85/15 v/v as eluent. Extraction recoveries from biological matrices ranged from 84.6% to 103.0%.
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Affiliation(s)
- Pavlos F Chatzimichalakis
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, GR-54 124 Thessaloniki, Greece
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Kodentsova VM, Uspenskaia ID, Vrzhesinskaia OA, Kharitonchik LA, Sokol'nikov AA, Iakushina LM, Makarova IB, Spirichev VB. [Features of B group vitamin metabolism and criteria for providing them to children suffering from celiac disease]. Vopr Med Khim 1995; 41:41-5. [PMID: 8571586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The investigation into the relationship between the concentration of vitamins B, the blood activity of vitamin B-dependent enzymes and the urinary excretion of their metabolites in 14 children of both sexes whose age was 4.5-10 years and who suffered from celiac disease has characterized their metabolic features. The criteria for vitamin B1 provision of these children differ from those in healthy children of the same age: the normal value of TDP effects is achieved with higher thiamine excretion which is more than 12 micrograms/h. Apparently, the plasma concentration of riboflavin greater than 14 ng/ml and its urinary excretion 6 micrograms/h should be taken as a criterion for normal vitamin B2 provision. Though due to a small proportion of the examined children, criteria for vitamin B6 and nicotinic acid could not be defined. The excretion of 4-pyridoxylic acid in the whole concentration ranges of pyridoxylic coenzymes in the plasma of sick children was essentially lower than that in healthy persons.
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Kodentsova VM, Vrzhesinskaia OA, Trofimenko EV, Sokol'nikov AA, Beketova NA, Blazheevich NV, Isaeva VA, Aleĭnik SI, Trofimenko LS, Dronova VI. [Vitamin status of children with diabetes mellitus]. Vopr Med Khim 1994; 40:45-8. [PMID: 8160431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A vitamin status was studied in 32 children of both sexes at the age of 9-15 years with insulin-dependent diabetes mellitus within 2-3 years. The adequate consumption of all the vitamins studied was found only in two children. Polyhypovitaminosis was detected in 19% of these children. Deterioration of riboflavin metabolism observed was manifest, as a decrease in the vitamin content in tissues in line with an increase in its excretion with urine. As a result of this impairment metabolism of vitamins B6 and PP was disturbed with development of these vitamins secondary deficiency of the non-alimentary type. Obligatory correction of the water soluble vitamin deficiency in the patients with diabetes mellitus is discussed.
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Kodentsova VM, Vrzhesinskaia OA, Denisova SN, Sokol'nikov AA, Beketova NA, Isaeva VA, Netrebenko OK, Spirichev VB. [Standards of hourly excretion of B group vitamins with urine for children aged 9 to 13 years]. Vopr Med Khim 1993; 39:27-31. [PMID: 8379109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Values of hour excretion of vitamins B1, B2, B6 and PP with urine in children of 9-13 years, studied under conditions of normal consumption of these vitamins, were estimated considering the correlation between the vitamins B concentration in blood and excretion of their metabolites with urine as well as using these parameters dependence on content of the vitamins in daily ration; for this purpose 35 adult persons and 31 children of both sexes were examined. Normal rate of riboflavin excretion with urine constituted 10-11 micrograms/h in children of this age, while of thiamine-11-12 micrograms/h. Under conditions of normal thiamine consumption, activity of erythrocyte transketolase, measured after preinactivation of transaldolase, exceeded 35 mumol/h/I ml of erythrocytes. Rates of excretion with urine of 4-pyridoxic acid and I-methyl nicotinamide were similar both in children and in adult persons and were equal to more than 40 micrograms/h and 400-600 micrograms/h, respectively.
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Abstract
Changes in nutritional status during supplementation with a high-potency multivitamin-mineral supplement were examined in 22 physically active men randomly assigned to take a supplement (n = 11) or placebo (n = 11) for approximately 12 wk. Four-day dietary intakes, blood concentrations, and urinary excretions of selected vitamins and minerals were measured before, during (approximately 6 and 12 wk), and after supplementation. No changes were observed in blood concentrations of vitamins A and C and measures of zinc, magnesium, and calcium status; the supplement provided less than 300% of the recommended dietary allowance (RDA) of these nutrients. In contrast, blood concentrations of thiamin, riboflavin, vitamins B-6 and B-12, pantothenate, and biotin increased significantly (P less than 0.05) by 6 wk to values that were maintained until the end of the supplementation. These vitamins were provided in amounts that ranged from 396% (biotin) to 6250% (vitamin B-6) of the RDA. Urinary excretions of these vitamins also increased during supplementation and both blood and urine values returned to presupplementation concentrations at approximately 13.5 wk postsupplementation.
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Affiliation(s)
- A Singh
- Department of Military Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814-4799
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Fernández López NA, Quiñonez Toyos N. [Nutritional status of the Puerto Rican population: anthropometric and biochemical data in children and adolescents]. Bol Asoc Med P R 1983; 75:343-6. [PMID: 6579976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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17
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Dombrovskaia MP, Demina SE, Shumilova SL, Smirnov NM, Bogdano NG. [Allowance of ascorbic acid and individual B group vitamins for schoolchildren]. Vopr Pitan 1982:70. [PMID: 7072187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Nemchinov NN, Germanova AL, Guseĭnov IA. [Effect of nicotinic acid on vitamin B group interaction under industrial conditions and experimentally]. Gig Tr Prof Zabol 1980:29-33. [PMID: 6448188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Motova LP, Tiagileva VP. [Effect of vitamin B 15 on urinary excretion of catecholamines in older people]. Vrach Delo 1976:54-6. [PMID: 1020292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Taylor T, Cameron BD, Hathway DE, Partington H. The disposition of pantothenate in dogs. Res Vet Sci 1974; 16:271-5. [PMID: 4854724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Garsevanishvili TI, Mukeriia ND, Grigorian NN, Chkhartishvili IN. [Blood and urine levels of vitamin B in healthy children under 1 year]. Pediatriia 1970; 49:22-4. [PMID: 5459321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Nordio S, Antener I, Gatti R, Dentan E. The molecular conception of rickets pathogenesis. I. Clinical research. Med Exp Int J Exp Med 1968; 18:193-222. [PMID: 4900159 DOI: 10.1159/000137158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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MARKKANEN T, LAHESMAA R. Effect of oral administration of neomycin and oxytetracyclin on urinary excretion of thiamine, riboflavin, nicotinic acid, pantothenic acid and biotin in man. Ann Med Exp Biol Fenn 1961; 39:394-9. [PMID: 14469991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
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MARKKANEN TK, KALLIOMAKI JL, OKA M, MUSTAKALLIO E, BRUMMER P. Urinary excretion of thiamine, riboflavin, nicotinic acid, pantothenic acid and biotine in anemic and non-anemic carriers of the fish tapeworm (Diphyllobothrium latum). Ann Med Exp Biol Fenn 1960; 38:133-9. [PMID: 14421263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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NICOLIS FB, NANI S. [Observations on the urinary elimination of some B complex vitamins in rats treated with tetracycline]. Acta Vitaminol 1959; 13:97-102. [PMID: 13670029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/23/2023]
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FIELD JB, FEDERMAN DD, McDANIEL E, BAKERMAN H. Urinary excretion patterns of some B-vitamins in diabetes; a study in patients with and without degenerative complications. Diabetes 1957; 6:508-13; discussion 513-4. [PMID: 13473646 DOI: 10.2337/diab.6.6.508] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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SATHE VR, TALAGERI VR, KHANOLKAR VR, PANSE TB. Studies on Bvitamins and estrogens in oral cancer. Indian J Med Res 1957; 45:401-9. [PMID: 13462567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023] Open
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BONATI B, NANI S, RANCATI GB. [Urinary elimination of B complex vitamins in the aged]. Acta Vitaminol 1956; 10:241-4. [PMID: 13410667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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SCEMAMA M. [Measurement of pyridoxine (vitamin B6) in urine]. Ann Biol Clin (Paris) 1956; 14:363-8. [PMID: 13327327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Abstract
Adult female albino Sprague-Dawley rats subjected to 500 r (backscatter) of whole-body x-irradiation exhibit an increase in the urinary excretion of the B6 group of vitamins beginning on the 2nd day after irradiation. However, control animals, whose food intake was limited to that of the irradiated group, excreted amounts of vitamin B6 that were quantitatively similar. It is concluded that the increase of vitamin B6 excretion found after x-irradiation is a reflection of the irradiation-induced anorexia and is not due to tissue changes brought about by irradiation per se.
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FUJITA A, FUJINO K. Fluorometric determination of vitamin B6. IV. Fractional determination of vitamin B6 components and 4-pyridoxic acid in the urine. J Vitaminol (Kyoto) 1955; 1:290-6. [PMID: 13296176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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PUTIGNANO T, RAMUNNI M. [Effect of isoniazid on urinary excretion of vitamin B complex]. Acta Vitaminol 1953; 7:194-6. [PMID: 13114086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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PUTIGNANO T, RAMUNNI M, COLONNA L. [Effect of p-aminosalicylic acid on urinary elimination of vitamin B complex]. Acta Vitaminol 1953; 7:217-9. [PMID: 13114090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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DI RAIMONDO F. [The so-called biological and clinical side-effects of antibiotics with special reference to the elimination of vitamin B complex]. Accad Medica 1952; 67:452-3. [PMID: 13039751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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B-VITAMIN excretion in man as influenced by streptomycin. Nutr Rev 1952; 10:294-5. [PMID: 13003032 DOI: 10.1111/j.1753-4887.1952.tb01015.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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DI RAIMONDO F, ANGARANO D, MANNINO N, TRINCHESE L. [Side-effects of some antibiotics in healthy subjects and in patients, with special reference to urinary elimination of vitamins of the B complex]. Int Z Vitaminforsch 1952; 24:302-17. [PMID: 13044363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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CONCHA E. [Laboratory studies on pellagra; urinary excretion of vitamin B complex and carotene, vitamins A and C level in the blood]. Rev Med Chil 1951; 79:626-31. [PMID: 14892459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
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