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Items: 1 to 50 of 176

1.

Identification and Characterization of Key Chemical Constituents in Processed Gastrodia elata Using UHPLC-MS/MS and Chemometric Methods.

Ye X, Wang Y, Zhao J, Wang M, Avula B, Peng Q, Ouyang H, Lingyun Z, Zhang J, Khan IA.

J Anal Methods Chem. 2019 Oct 23;2019:4396201. doi: 10.1155/2019/4396201. eCollection 2019.

2.

Development and Validation of a UHPLC-PDA-MS Method for the Quantitative Analysis of Anthraquinones in Bulbine natalensis Extracts and Dietary Supplements.

Bae JY, Avula B, Wang YH, Wang M, Ali Z, Viljeon AM, Khan IA.

Planta Med. 2020 Jan;86(2):144-150. doi: 10.1055/a-1037-4051. Epub 2019 Nov 25.

PMID:
31766069
3.

Optimization, stabilization, and characterization of amphotericin B loaded nanostructured lipid carriers for ocular drug delivery.

Lakhani P, Patil A, Wu KW, Sweeney C, Tripathi S, Avula B, Taskar P, Khan S, Majumdar S.

Int J Pharm. 2019 Dec 15;572:118771. doi: 10.1016/j.ijpharm.2019.118771. Epub 2019 Oct 26.

PMID:
31669555
4.

Analysis of prenylflavonoids from aerial parts of Epimedium grandiflorum and dietary supplements using HPTLC, UHPLC-PDA and UHPLC-QToF along with chemometric tools to differentiate Epimedium species.

Bae JY, Avula B, Zhao J, Raman V, Wang YH, Wang M, Zulfiqar F, Feng W, Park JH, Abe N, Ali Z, Khan IA.

J Pharm Biomed Anal. 2020 Jan 5;177:112843. doi: 10.1016/j.jpba.2019.112843. Epub 2019 Aug 28.

PMID:
31509788
5.

Liquid chromatography-quadrupole time of flight mass spectrometric method for targeted analysis of 111 nitrogen-based compounds in weight loss and ergogenic supplements.

Avula B, Bae JY, Chittiboyina AG, Wang YH, Wang M, Khan IA.

J Pharm Biomed Anal. 2019 Sep 10;174:305-323. doi: 10.1016/j.jpba.2019.05.066. Epub 2019 May 31.

PMID:
31195319
6.

The Contents of Herbal and Dietary Supplements Implicated in Liver Injury in the United States Are Frequently Mislabeled.

Navarro V, Avula B, Khan I, Verma M, Seeff L, Serrano J, Stolz A, Fontana R, Ahmad J.

Hepatol Commun. 2019 Apr 3;3(6):792-794. doi: 10.1002/hep4.1346. eCollection 2019 Jun.

7.

Decaffeinated Green Tea Extract Does Not Elicit Hepatotoxic Effects and Modulates the Gut Microbiome in Lean B6C3F₁ Mice.

Gurley BJ, Miousse IR, Nookaew I, Ewing LE, Skinner CM, Jenjaroenpun P, Wongsurawat T, Kennon-McGill S, Avula B, Bae JY, McGill MR, Ussery D, Khan IA, Koturbash I.

Nutrients. 2019 Apr 3;11(4). pii: E776. doi: 10.3390/nu11040776.

8.

Melt-Cast Films Significantly Enhance Triamcinolone Acetonide Delivery to the Deeper Ocular Tissues.

Tatke A, Dudhipala N, Janga KY, Soneta B, Avula B, Majumdar S.

Pharmaceutics. 2019 Apr 2;11(4). pii: E158. doi: 10.3390/pharmaceutics11040158.

9.

Severe and protracted cholestasis in 44 young men taking bodybuilding supplements: assessment of genetic, clinical and chemical risk factors.

Stolz A, Navarro V, Hayashi PH, Fontana RJ, Barnhart HX, Gu J, Chalasani NP, Vega MM, Bonkovsky HL, Seeff LB, Serrano J, Avula B, Khan IA, Cirulli ET, Kleiner DE, Hoofnagle JH; DILIN Investigators.

Aliment Pharmacol Ther. 2019 May;49(9):1195-1204. doi: 10.1111/apt.15211. Epub 2019 Apr 1.

PMID:
30934130
10.

Quantitative determination and pharmacokinetic study of fusaricidin A in mice plasma and tissues using ultra-high performance liquid chromatography-tandem mass spectrometry.

Haron MH, Avula B, Shi Q, Li XC, Ashfaq MK, Bae JY, Guan S, Hinchee M, Khan IA, Khan SI.

J Pharm Biomed Anal. 2019 Jun 5;170:187-192. doi: 10.1016/j.jpba.2019.03.042. Epub 2019 Mar 19.

PMID:
30927664
11.

Meglumine as a green, efficient and reusable catalyst for synthesis and molecular docking studies of bis(indolyl)methanes as antioxidant agents.

Nemallapudi BR, Zyryanov GV, Avula B, Guda MR, Cirandur SR, Venkataramaiah C, Rajendra W, Gundala S.

Bioorg Chem. 2019 Jun;87:465-473. doi: 10.1016/j.bioorg.2019.03.005. Epub 2019 Mar 4.

PMID:
30927587
12.

Structural Characterization of Cranberry Arabinoxyloglucan Oligosaccharides.

Auker KM, Coleman CM, Wang M, Avula B, Bonnet SL, Kimble LL, Mathison BD, Chew BP, Ferreira D.

J Nat Prod. 2019 Mar 22;82(3):606-620. doi: 10.1021/acs.jnatprod.8b01044. Epub 2019 Mar 6.

PMID:
30839212
13.

Pharmacokinetics and Tissue Distribution of Aegeline after Oral Administration in Mice.

Manda VK, Haron MH, Mir TM, Avula B, Ashfaq MK, Haider S, Chittiboyina AG, Khan IA, Khan SI.

Planta Med. 2019 Apr;85(6):491-495. doi: 10.1055/a-0851-6879. Epub 2019 Feb 12.

PMID:
30754052
14.

The power of hyphenated chromatography-Time of flight mass spectrometry for unequivocal identification of spirostanes in bodybuilding dietary supplements.

Avula B, Chittiboyina AG, Bae JY, Haider S, Wang YH, Wang M, Zhao J, Deuster PA, Khan IA.

J Pharm Biomed Anal. 2019 Apr 15;167:74-82. doi: 10.1016/j.jpba.2018.12.045. Epub 2019 Feb 1.

PMID:
30753977
15.

Formation primaquine-5,6-orthoquinone, the putative active and toxic metabolite of primaquine via direct oxidation in human erythrocytes.

Fasinu PS, Nanayakkara NPD, Wang YH, Chaurasiya ND, Herath HMB, McChesney JD, Avula B, Khan I, Tekwani BL, Walker LA.

Malar J. 2019 Jan 30;18(1):30. doi: 10.1186/s12936-019-2658-5.

16.

The Chemical Characterization of Eleutherococcus senticosus and Ci-wu-jia Tea using UHPLC-UV-QTOF/MS.

Wang YH, Meng Y, Zhai C, Wang M, Avula B, Yuk J, Smith KM, Isaac G, Khan IA.

Int J Mol Sci. 2019 Jan 22;20(3). pii: E475. doi: 10.3390/ijms20030475.

17.

Analysis of Terpenes in Cannabis sativa L. Using GC/MS: Method Development, Validation, and Application.

Ibrahim EA, Wang M, Radwan MM, Wanas AS, Majumdar CG, Avula B, Wang YH, Khan IA, Chandra S, Lata H, Hadad GM, Abdel Salam RA, Ibrahim AK, Ahmed SA, ElSohly MA.

Planta Med. 2019 Mar;85(5):431-438. doi: 10.1055/a-0828-8387. Epub 2019 Jan 15.

PMID:
30646402
18.

In Situ Gel of Triamcinolone Acetonide-Loaded Solid Lipid Nanoparticles for Improved Topical Ocular Delivery: Tear Kinetics and Ocular Disposition Studies.

Tatke A, Dudhipala N, Janga KY, Balguri SP, Avula B, Jablonski MM, Majumdar S.

Nanomaterials (Basel). 2018 Dec 27;9(1). pii: E33. doi: 10.3390/nano9010033.

19.

A sensitive bioanalytical method for quantitative determination of resiniferatoxin in rat plasma using ultra-high performance liquid chromatography coupled to tandem mass spectrometry and its application in pharmacokinetic study.

Sharma PK, Avula B, Panda A, Wang YH, Khan IA, Murthy SN.

J Pharm Biomed Anal. 2019 Feb 20;165:284-291. doi: 10.1016/j.jpba.2018.12.024. Epub 2018 Dec 14.

PMID:
30576973
20.

Identification of fusaricidins from the antifungal microbial strain Paenibacillus sp. MS2379 using ultra-high performance liquid chromatography coupled to quadrupole time-of-flight mass spectrometry.

Qiu S, Avula B, Guan S, Rao Ravu R, Wang M, Zhao J, Khan IA, Hinchee M, Li XC.

J Chromatogr A. 2019 Feb 8;1586:91-100. doi: 10.1016/j.chroma.2018.12.007. Epub 2018 Dec 5.

PMID:
30558848
21.

Tetra-glucopyranosyl Diterpene ent-Kaur-16-en-19-oic Acid and ent-13(S)-Hydroxyatisenoic Acid Derivatives from a Commercial Extract of Stevia rebaudiana (Bertoni) Bertoni.

Perera WH, Ghiviriga I, Rodenburg DL, Alves K, Wiggers FT, Hufford CD, Fronczek FR, Ibrahim MA, Muhammad I, Avula B, Khan IA, McChesney JD.

Molecules. 2018 Dec 15;23(12). pii: E3328. doi: 10.3390/molecules23123328.

22.

Erratum: Piper nigrum Oil - Determination of Selected Terpenes for Quality Evaluation.

Wang M, Chittiboyina AG, Parcher JF, Ali Z, Ford P, Zhao J, Avula B, Wang YH, Khan IA.

Planta Med. 2019 Feb;85(3):e1. doi: 10.1055/a-0808-3238. Epub 2018 Dec 3.

PMID:
30508868
23.

Piper nigrum Oil - Determination of Selected Terpenes for Quality Evaluation.

Wang M, Chittiboyina AG, Parcher JF, Ali Z, Ford P, Zhao J, Avula B, Wang YH, Khan IA.

Planta Med. 2019 Feb;85(3):185-194. doi: 10.1055/a-0782-0548. Epub 2018 Nov 15. Erratum in: Planta Med. 2019 Feb;85(3):e1.

PMID:
30440078
24.

Impact of obesity on the toxicity of a multi-ingredient dietary supplement, OxyELITE Pro™ (New Formula), using the novel NZO/HILtJ obese mouse model: Physiological and mechanistic assessments.

Skinner CM, Miousse IR, Ewing LE, Sridharan V, Cao M, Lin H, Williams DK, Avula B, Haider S, Chittiboyina AG, Khan IA, ElSohly MA, Boerma M, Gurley BJ, Koturbash I.

Food Chem Toxicol. 2018 Dec;122:21-32. doi: 10.1016/j.fct.2018.09.067. Epub 2018 Sep 30.

25.

Quantification of Phenolic Compounds from Fadogia agrestis and Dietary Supplements using UHPLC-PDA-MS.

Avula B, Bae JY, Raman V, Fantoukh OI, Wang YH, Osman AG, Wang M, Ali Z, Khan IA.

Planta Med. 2019 Jan;85(2):145-153. doi: 10.1055/a-0715-1801. Epub 2018 Aug 31.

PMID:
30170324
26.

Pharmacokinetics and cytotoxic study of euphol from Euphorbia umbellata (Bruyns) Pax latex.

Cruz LS, de Oliveira TL, Kanunfre CC, Paludo KS, Minozzo BR, Prestes AP, Wang M, Fernandes D, Santos FAD, Manda VK, Khan SI, Ali Z, de Messias-Reason IJ, Avula B, Khan IA, Beltrame FL.

Phytomedicine. 2018 Aug 1;47:105-112. doi: 10.1016/j.phymed.2018.04.055. Epub 2018 May 11.

PMID:
30166094
27.

Metabolism of primaquine in normal human volunteers: investigation of phase I and phase II metabolites from plasma and urine using ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry.

Avula B, Tekwani BL, Chaurasiya ND, Fasinu P, Dhammika Nanayakkara NP, Bhandara Herath HMT, Wang YH, Bae JY, Khan SI, Elsohly MA, McChesney JD, Zimmerman PA, Khan IA, Walker LA.

Malar J. 2018 Aug 13;17(1):294. doi: 10.1186/s12936-018-2433-z.

28.

Targeted and non-targeted analysis of annonaceous alkaloids and acetogenins from Asimina and Annona species using UHPLC-QToF-MS.

Avula B, Bae JY, Majrashi T, Wu TY, Wang YH, Wang M, Ali Z, Wu YC, Khan IA.

J Pharm Biomed Anal. 2018 Sep 10;159:548-566. doi: 10.1016/j.jpba.2018.07.030. Epub 2018 Jul 19.

PMID:
30077947
29.

Formulation Development, Optimization, and In Vitro-In Vivo Characterization of Natamycin-Loaded PEGylated Nano-Lipid Carriers for Ocular Applications.

Patil A, Lakhani P, Taskar P, Wu KW, Sweeney C, Avula B, Wang YH, Khan IA, Majumdar S.

J Pharm Sci. 2018 Aug;107(8):2160-2171. doi: 10.1016/j.xphs.2018.04.014. Epub 2018 Apr 24.

PMID:
29698725
30.

Retina Compatible Interactions and Effective Modulation of Blood Ocular Barrier P-gp Activity by Third-Generation Inhibitors Improve the Ocular Penetration of Loperamide.

Janga KY, Tatke A, Shukla S, Lamichhane SP, Avula B, Wang X, Jablonski MM, Khan IA, Majumdar S.

J Pharm Sci. 2018 Aug;107(8):2128-2135. doi: 10.1016/j.xphs.2018.04.008. Epub 2018 Apr 17.

PMID:
29678592
31.

Application of GC/Q-ToF Combined with Advanced Data Mining and Chemometric Tools in the Characterization and Quality Control of Bay Leaves.

Wang M, Raman V, Zhao J, Avula B, Wang YH, Wylie PL, Khan IA.

Planta Med. 2018 Sep;84(14):1045-1054. doi: 10.1055/a-0585-5987. Epub 2018 Mar 14.

PMID:
29539646
32.

P-glycoprotein Restricts Ocular Penetration of Loperamide across the Blood-Ocular Barriers: a Comparative Study in Mdr1a Knock-out and Wild Type Sprague Dawley Rats.

Tatke A, Janga KY, Avula B, Wang X, Jablonski MM, Khan IA, Majumdar S.

AAPS PharmSciTech. 2018 May;19(4):1662-1671. doi: 10.1208/s12249-018-0979-2. Epub 2018 Mar 8.

PMID:
29520587
33.

Determination of nicotine content in teeth submitted to prophylaxis and in-office bleaching by gas chromatography-mass spectrometry (GC-MS).

de Geus JL, Beltrame FL, Wang M, Avula B, Khan IA, Loguercio AD, Kossatz S, Reis A.

Clin Oral Investig. 2018 Dec;22(9):3043-3051. doi: 10.1007/s00784-018-2388-z. Epub 2018 Feb 21.

PMID:
29468599
34.

Detection and quantification of phenethylamines in sports dietary supplements by NMR approach.

Zhao J, Wang M, Avula B, Khan IA.

J Pharm Biomed Anal. 2018 Mar 20;151:347-355. doi: 10.1016/j.jpba.2018.01.025. Epub 2018 Jan 31.

PMID:
29413984
35.

Corrigendum to "Characterization and screening of pyrrolizidine alkaloids and N-oxides from botanicals and dietary supplements using UHPLC-high resolution mass spectrometry" [Food Chem. 178 (2015) 136-148].

Avula B, Sagi S, Wang YH, Zweigenbaum J, Wang M, Khan IA.

Food Chem. 2018 May 15;248:361-363. doi: 10.1016/j.foodchem.2017.12.038. Epub 2017 Dec 28. No abstract available.

PMID:
29329867
36.

Quantitative Determination of Δ9-THC, CBG, CBD, Their Acid Precursors and Five Other Neutral Cannabinoids by UHPLC-UV-MS.

Wang YH, Avula B, ElSohly MA, Radwan MM, Wang M, Wanas AS, Mehmedic Z, Khan IA.

Planta Med. 2018 Mar;84(4):260-266. doi: 10.1055/s-0043-124873. Epub 2017 Dec 20.

PMID:
29262425
37.

Monoamine oxidases inhibitors from Colvillea racemosa: Isolation, biological evaluation, and computational study.

Mohamed EI, Zaki MA, Chaurasiya ND, Owis AI, AbouZid S, Wang YH, Avula B, Seida AA, Tekwani BL, Ross SA.

Fitoterapia. 2018 Jan;124:217-223. doi: 10.1016/j.fitote.2017.11.009. Epub 2017 Nov 14.

38.

The Red Yeast Rice story: How to manufacture a tall tale from nature.

Gold KR, Gold R, Avula B, Khan IA.

Eur J Prev Cardiol. 2018 Jan;25(1):73-75. doi: 10.1177/2047487317739080. Epub 2017 Oct 31. No abstract available.

PMID:
29086583
39.

PXR mediated induction of CYP3A4, CYP1A2, and P-gp by Mitragyna speciosa and its alkaloids.

Manda VK, Avula B, Dale OR, Ali Z, Khan IA, Walker LA, Khan SI.

Phytother Res. 2017 Dec;31(12):1935-1945. doi: 10.1002/ptr.5942. Epub 2017 Oct 26.

PMID:
29071751
40.

Decarboxylation Study of Acidic Cannabinoids: A Novel Approach Using Ultra-High-Performance Supercritical Fluid Chromatography/Photodiode Array-Mass Spectrometry.

Wang M, Wang YH, Avula B, Radwan MM, Wanas AS, van Antwerp J, Parcher JF, ElSohly MA, Khan IA.

Cannabis Cannabinoid Res. 2016 Dec 1;1(1):262-271. doi: 10.1089/can.2016.0020. eCollection 2016.

41.

Safety assessment of the dietary supplement OxyELITE™ Pro (New Formula) in inbred and outbred mouse strains.

Miousse IR, Skinner CM, Lin H, Ewing LE, Kosanke SD, Williams DK, Avula B, Khan IA, ElSohly MA, Gurley BJ, Koturbash I.

Food Chem Toxicol. 2017 Nov;109(Pt 1):194-209. doi: 10.1016/j.fct.2017.08.025. Epub 2017 Aug 24.

42.

Two plant-derived aporphinoid alkaloids exert their antifungal activity by disrupting mitochondrial iron-sulfur cluster biosynthesis.

Tripathi SK, Xu T, Feng Q, Avula B, Shi X, Pan X, Mask MM, Baerson SR, Jacob MR, Ravu RR, Khan SI, Li XC, Khan IA, Clark AM, Agarwal AK.

J Biol Chem. 2017 Oct 6;292(40):16578-16593. doi: 10.1074/jbc.M117.781773. Epub 2017 Aug 18.

43.

Variability in strength of red yeast rice supplements purchased from mainstream retailers.

Cohen PA, Avula B, Khan IA.

Eur J Prev Cardiol. 2017 Sep;24(13):1431-1434. doi: 10.1177/2047487317715714. Epub 2017 Jun 23.

PMID:
28641460
44.

Metabolic Profiling of Hoodia, Chamomile, Terminalia Species and Evaluation of Commercial Preparations Using Ultrahigh-Performance Liquid Chromatography Quadrupole-Time-of-Flight Mass Spectrometry.

Avula B, Wang YH, Isaac G, Yuk J, Wrona M, Yu K, Khan IA.

Planta Med. 2017 Nov;83(16):1297-1308. doi: 10.1055/s-0043-109239. Epub 2017 Apr 28.

PMID:
28454188
45.

Updates to a 13C metabolic flux analysis model for evaluating energy metabolism in cultured cerebellar granule neurons from neonatal rats.

Jekabsons MB, Gebril HM, Wang YH, Avula B, Khan IA.

Neurochem Int. 2017 Oct;109:54-67. doi: 10.1016/j.neuint.2017.03.020. Epub 2017 Apr 13.

46.

Eleutherococcus senticosus (Araliaceae) Leaf Morpho-Anatomy, Essential Oil Composition, and Its Biological Activity Against Aedes aegypti (Diptera: Culicidae).

Zhai C, Wang M, Raman V, Rehman JU, Meng Y, Zhao J, Avula B, Wang YH, Tian Z, Khan IA.

J Med Entomol. 2017 May 1;54(3):658-669. doi: 10.1093/jme/tjw221. Erratum in: J Med Entomol. 2017 Sep 1;54(5):1451.

PMID:
28399215
47.
48.

Proteoform-Specific Protein Binding of Small Molecules in Complex Matrices.

Gil G, Mao P, Avula B, Ali Z, Chittiboyina AG, Khan IA, Walker LA, Wang D.

ACS Chem Biol. 2017 Feb 17;12(2):389-397. doi: 10.1021/acschembio.6b01018. Epub 2016 Dec 21.

49.

Rebaudiosides T and U, minor C-19 xylopyranosyl and arabinopyranosyl steviol glycoside derivatives from Stevia rebaudiana (Bertoni) Bertoni.

Perera WH, Ghiviriga I, Rodenburg DL, Alves K, Bowling JJ, Avula B, Khan IA, McChesney JD.

Phytochemistry. 2017 Mar;135:106-114. doi: 10.1016/j.phytochem.2016.12.001. Epub 2016 Dec 12.

PMID:
27979591
50.

Quantitative Determination of Cannabinoids in Cannabis and Cannabis Products Using Ultra-High-Performance Supercritical Fluid Chromatography and Diode Array/Mass Spectrometric Detection.

Wang M, Wang YH, Avula B, Radwan MM, Wanas AS, Mehmedic Z, van Antwerp J, ElSohly MA, Khan IA.

J Forensic Sci. 2017 May;62(3):602-611. doi: 10.1111/1556-4029.13341. Epub 2016 Dec 13.

PMID:
27957741

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