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Items: 43

1.

Human ortholog of a plant salicylic acid receptor found in SK-N-SH cell line.

Skubatz H, Howald WN.

Protein J. 2013 Dec;32(8):641-8. doi: 10.1007/s10930-013-9527-9.

PMID:
24288116
2.

A NAD(P) reductase like protein is the salicylic acid receptor in the appendix of the Sauromatum guttatum inflorescence.

Skubatz H, Orellana MV, Howald WN.

Intrinsically Disord Proteins. 2013 Sep 19;1(1):e26372. doi: 10.4161/idp.26372. eCollection 2013 Jan-Dec.

3.
4.

Purification of a NAD(P) reductase-like protein from the thermogenic appendix of the Sauromatum guttatum inflorescence.

Skubatz H, Howald WN.

Protein J. 2013 Mar;32(3):197-207. doi: 10.1007/s10930-013-9472-7.

PMID:
23467808
5.

Pharmacokinetics of valerenic acid after single and multiple doses of valerian in older women.

Anderson GD, Elmer GW, Taibi DM, Vitiello MV, Kantor E, Kalhorn TF, Howald WN, Barsness S, Landis CA.

Phytother Res. 2010 Oct;24(10):1442-6. doi: 10.1002/ptr.3151.

PMID:
20878691
6.
7.

Chloramphenicol is a substrate for a novel nitroreductase pathway in Haemophilus influenzae.

Smith AL, Erwin AL, Kline T, Unrath WC, Nelson K, Weber A, Howald WN.

Antimicrob Agents Chemother. 2007 Aug;51(8):2820-9. Epub 2007 May 25.

8.

Porphyromonas gingivalis lipopolysaccharide lipid A heterogeneity: differential activities of tetra- and penta-acylated lipid A structures on E-selectin expression and TLR4 recognition.

Reife RA, Coats SR, Al-Qutub M, Dixon DM, Braham PA, Billharz RJ, Howald WN, Darveau RP.

Cell Microbiol. 2006 May;8(5):857-68.

PMID:
16611234
9.

Rapid quantitation of cyclophosphamide metabolites in plasma by liquid chromatography-mass spectrometry.

Kalhorn TF, Howald WN, Cole S, Phillips B, Wang J, Slattery JT, McCune JS.

J Chromatogr B Analyt Technol Biomed Life Sci. 2006 May 1;835(1-2):105-13. Epub 2006 Apr 11.

PMID:
16581318
10.
11.

Porphyromonas gingivalis lipopolysaccharide contains multiple lipid A species that functionally interact with both toll-like receptors 2 and 4.

Darveau RP, Pham TT, Lemley K, Reife RA, Bainbridge BW, Coats SR, Howald WN, Way SS, Hajjar AM.

Infect Immun. 2004 Sep;72(9):5041-51.

12.

Validation of a soy food-frequency questionnaire and evaluation of correlates of plasma isoflavone concentrations in postmenopausal women.

Frankenfeld CL, Patterson RE, Horner NK, Neuhouser ML, Skor HE, Kalhorn TF, Howald WN, Lampe JW.

Am J Clin Nutr. 2003 Mar;77(3):674-80.

PMID:
12600860
13.

Validation of a soy food frequency questionnaire with plasma concentrations of isoflavones in US adults.

Frankenfeld CL, Patterson RE, Kalhorn TF, Skor HE, Howald WN, Lampe JW.

J Am Diet Assoc. 2002 Oct;102(10):1407-13.

PMID:
12396157
14.

Trichloroethylene oxidative metabolism in plants: the trichloroethanol pathway.

Shang TQ, Doty SL, Wilson AM, Howald WN, Gordon MP.

Phytochemistry. 2001 Dec;58(7):1055-65.

PMID:
11730869
15.

Wheat bran and soy protein feeding do not alter urinary excretion of the isoflavan equol in premenopausal women.

Lampe JW, Skor HE, Li S, Wähälä K, Howald WN, Chen C.

J Nutr. 2001 Mar;131(3):740-4.

PMID:
11238753
16.

Analysis of hydroxylated and N-dealkylated metabolites of terfenadine in microsomal incubates by liquid chromatography--mass spectrometry.

Madani S, Howald WN, Lawrence RF, Shen DD.

J Chromatogr B Biomed Sci Appl. 2000 May 12;741(2):145-53.

PMID:
10872584
17.

Identification of the lipophilic factor produced by macrophages that stimulates steroidogenesis.

Nes WD, Lukyanenko YO, Jia ZH, Quideau S, Howald WN, Pratum TK, West RR, Hutson JC.

Endocrinology. 2000 Mar;141(3):953-8.

PMID:
10698170
18.
19.

Analysis of cyclophosphamide and five metabolites from human plasma using liquid chromatography-mass spectrometry and gas chromatography-nitrogen-phosphorus detection.

Kalhorn TF, Ren S, Howald WN, Lawrence RF, Slattery JT.

J Chromatogr B Biomed Sci Appl. 1999 Sep 24;732(2):287-98.

PMID:
10517350
20.

Effect of inhibitor depletion on inhibitory potency: tight binding inhibition of CYP3A by clotrimazole.

Gibbs MA, Kunze KL, Howald WN, Thummel KE.

Drug Metab Dispos. 1999 May;27(5):596-9.

PMID:
10220488
21.

Subnanomolar quantification of caffeine's in vitro metabolites by stable isotope dilution gas chromatography-mass spectrometry.

Regal KA, Howald WN, Peter RM, Gartner CA, Kunze KL, Nelson SD.

J Chromatogr B Biomed Sci Appl. 1998 Apr 24;708(1-2):75-85.

PMID:
9653949
22.

Characterization of a urinary bufodienolide Na+,K+-ATPase inhibitor in patients after acute myocardial infarction.

Bagrov AY, Fedorova OV, Dmitrieva RI, Howald WN, Hunter AP, Kuznetsova EA, Shpen VM.

Hypertension. 1998 May;31(5):1097-103.

PMID:
9576120
23.

Stability enhancement for peptide analysis by electrospray using the triple quadrupole mass spectrometer.

Wang H, Lim KB, Lawrence RF, Howald WN, Taylor JA, Ericsson LH, Walsh KA, Hackett M.

Anal Biochem. 1997 Aug 1;250(2):162-8.

PMID:
9245434
24.

Pathway of terpene excretion by the appendix of Sauromatum guttatum.

Skubatz H, Kunkel DD, Patt JM, Howald WN, Hartman TG, Meeuse BJ.

Proc Natl Acad Sci U S A. 1995 Oct 24;92(22):10084-8.

25.

Oleic Acid and Its Positional Isomer, cis-Vaccinic Acid, in the Appendix of Sauromatum guttatum during Anthesis.

Skubatz H, Svee ER, Moore BS, Howald WN, Tang W, Meeuse B.

Plant Physiol. 1995 Apr;107(4):1433-1438.

26.

Application of negative-ion chemical ionization isotope dilution gas chromatography--mass spectrometry to single-dose bioavailability studies of mefloquine.

Neal JM, Howald WN, Kunze KL, Lawrence RF, Trager WF.

J Chromatogr B Biomed Appl. 1994 Nov 18;661(2):263-9.

PMID:
7894666
27.

Quantification of 3-(2-Hydroxypropyl)-5-methyl-2-oxazolidinone in Groundwater and Sludge by Isotope Dilution Gas Chromatography/Mass Spectrometry.

Howald WN, Porubek DJ.

Environ Sci Technol. 1994 Apr 1;28(4):682-5. doi: 10.1021/es00053a023. No abstract available.

PMID:
22196553
28.

S-oxidative cleavage of farnesylcysteine and farnesylcysteine methyl ester by the flavin-containing monooxygenase.

Park SB, Howald WN, Cashman JR.

Chem Res Toxicol. 1994 Mar-Apr;7(2):191-8.

PMID:
8199308
29.

Membrane-binding domain of the small G protein G25K contains an S-(all-trans-geranylgeranyl)cysteine methyl ester at its carboxyl terminus.

Yamane HK, Farnsworth CC, Xie HY, Evans T, Howald WN, Gelb MH, Glomset JA, Clarke S, Fung BK.

Proc Natl Acad Sci U S A. 1991 Jan 1;88(1):286-90.

30.

The use of Brauman's least squares approach for the quantification of deuterated chlorophenols.

Korzekwa K, Howald WN, Trager WF.

Biomed Environ Mass Spectrom. 1990 Apr;19(4):211-7.

PMID:
2340358
32.

Quantitative metabolic profiling of valproic acid in humans using automated gas chromatographic/mass spectrometric techniques.

Rettenmeier AW, Howald WN, Levy RH, Witek DJ, Gordon WP, Porubek DJ, Baillie TA.

Biomed Environ Mass Spectrom. 1989 Mar;18(3):192-9.

PMID:
2496780
35.

Cytochrome P-450--catalyzed formation of delta 4-VPA, a toxic metabolite of valproic acid.

Rettie AE, Rettenmeier AW, Howald WN, Baillie TA.

Science. 1987 Feb 20;235(4791):890-3.

PMID:
3101178
36.

Application of stable isotope methodology in the evaluation of sustained-release theophylline dosage forms.

Koup JR, Walker SB, Shapiro GG, Howald WN, Pierson WE, Bierman CW, Furukawa CT.

J Allergy Clin Immunol. 1986 Oct;78(4 Pt 2):752-4.

PMID:
3771962
37.

Intramolecular isotope effects associated with meta-hydroxylation of biphenyl catalyzed by cytochrome P-450.

Swinney DC, Howald WN, Trager WF.

Biochem Biophys Res Commun. 1984 Feb 14;118(3):867-72.

PMID:
6704111
38.

Complete amino acid sequence of the light chain of human blood coagulation factor X: evidence for identification of residue 63 as beta-hydroxyaspartic acid.

McMullen BA, Fujikawa K, Kisiel W, Sasagawa T, Howald WN, Kwa EY, Weinstein B.

Biochemistry. 1983 Jun 7;22(12):2875-84.

PMID:
6871167
39.

Stable isotope methodology in a pharmacokinetic study of the interaction of theophylline and cimetidine.

Vestal RE, Thummel KE, Musser B, Jue SG, Mercer GD, Howald WN.

Biomed Mass Spectrom. 1982 Aug;9(8):340-6.

PMID:
7126765
40.

High-performance liquid chromatographic separation and fluorescence detection of warfarin and its metabolites by postcolumn acid/base manipulation.

Lee SH, Field LR, Howald WN, Trager WF.

Anal Chem. 1981 Mar;53(3):467-71. No abstract available.

PMID:
7224175
41.

Aromatic hydroxylation of oxprenolol. Quantitation and stereoselectivity in the formation of 4'- and 5-hydroxyoxprenolol in vivo in the rat.

Burke TR Jr, Howald WN, Nelson WL.

Res Commun Chem Pathol Pharmacol. 1980 Jun;28(3):399-412.

PMID:
7403656
42.

A stable isotope assay for pseudoracemic warfarin from human plasma samples.

Howald WN, Bush ED, Trager WF, O"Reilly RA, Motley CH.

Biomed Mass Spectrom. 1980 Jan;7(1):35-40.

PMID:
7397318
43.

yote Alkaloids: Identification in the Mexican ictus Pelecyphora aselliformis Ehrenberg.

Neal JM, Sato PT, Howald WN, McLaughlin JL.

Science. 1972 Jun 9;176(4039):1131-3.

PMID:
17775137

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