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Items: 1 to 50 of 67

1.

Complete Genome Sequence of Microbacterium sp. Strain 10M-3C3, Isolated from an Extremely Phosphorus-Poor Lake.

Hempel P, Keffer JL, Shevchenko O, Henny C, Polson SW, Maresca JA.

Microbiol Resour Announc. 2019 Jan 24;8(4). pii: e01649-18. doi: 10.1128/MRA.01649-18. eCollection 2019 Jan.

2.

Light Modulates the Physiology of Nonphototrophic Actinobacteria.

Maresca JA, Keffer JL, Hempel PP, Polson SW, Shevchenko O, Bhavsar J, Powell D, Miller KJ, Singh A, Hahn MW.

J Bacteriol. 2019 Apr 24;201(10). pii: e00740-18. doi: 10.1128/JB.00740-18. Print 2019 May 15.

3.

Molecular Diagnostics in Pathology.

Keffer JH.

Arch Pathol Lab Med. 2018 Aug;142(8):890. doi: 10.5858/arpa.2018-0151-LE. No abstract available.

PMID:
30040462
4.

Distribution and Diversity of Rhodopsin-Producing Microbes in the Chesapeake Bay.

Maresca JA, Miller KJ, Keffer JL, Sabanayagam CR, Campbell BJ.

Appl Environ Microbiol. 2018 Jun 18;84(13). pii: e00137-18. doi: 10.1128/AEM.00137-18. Print 2018 Jul 1.

5.

Biochemical Analysis of Microbial Rhodopsins.

Maresca JA, Keffer JL, Miller KJ.

Curr Protoc Microbiol. 2016 May 6;41:1F.4.1-1F.4.18. doi: 10.1002/cpmc.5.

6.

Characterization of an Unconventional Rhodopsin from the Freshwater Actinobacterium Rhodoluna lacicola.

Keffer JL, Hahn MW, Maresca JA.

J Bacteriol. 2015 Aug;197(16):2704-12. doi: 10.1128/JB.00386-15. Epub 2015 Jun 8.

7.

Using total internal reflection fluorescence microscopy to visualize rhodopsin-containing cells.

Keffer JL, Sabanayagam CR, Lee ME, DeLong EF, Hahn MW, Maresca JA.

Appl Environ Microbiol. 2015 May 15;81(10):3442-50. doi: 10.1128/AEM.00230-15. Epub 2015 Mar 13.

8.

Chrysophaentins are competitive inhibitors of FtsZ and inhibit Z-ring formation in live bacteria.

Keffer JL, Huecas S, Hammill JT, Wipf P, Andreu JM, Bewley CA.

Bioorg Med Chem. 2013 Sep 15;21(18):5673-8. doi: 10.1016/j.bmc.2013.07.033. Epub 2013 Jul 25.

9.

Geographic variability and anti-staphylococcal activity of the chrysophaentins and their synthetic fragments.

Keffer JL, Hammill JT, Lloyd JR, Plaza A, Wipf P, Bewley CA.

Mar Drugs. 2012 May;10(5):1103-25. doi: 10.3390/md10051103. Epub 2012 May 22.

10.

Discovery and synthesis of namalide reveals a new anabaenopeptin scaffold and peptidase inhibitor.

Cheruku P, Plaza A, Lauro G, Keffer J, Lloyd JR, Bifulco G, Bewley CA.

J Med Chem. 2012 Jan 26;55(2):735-42. doi: 10.1021/jm201238p. Epub 2012 Jan 5.

11.

Motualevic acids and analogs: synthesis and antimicrobial structure-activity relationships.

Cheruku P, Keffer JL, Dogo-Isonagie C, Bewley CA.

Bioorg Med Chem Lett. 2010 Jul 15;20(14):4108-11. doi: 10.1016/j.bmcl.2010.05.073. Epub 2010 Jun 9.

12.

Chrysophaentins A-H, antibacterial bisdiarylbutene macrocycles that inhibit the bacterial cell division protein FtsZ.

Plaza A, Keffer JL, Bifulco G, Lloyd JR, Bewley CA.

J Am Chem Soc. 2010 Jul 7;132(26):9069-77. doi: 10.1021/ja102100h.

13.

Mutremdamide A and koshikamides C-H, peptide inhibitors of HIV-1 entry from different Theonella species.

Plaza A, Bifulco G, Masullo M, Lloyd JR, Keffer JL, Colin PL, Hooper JN, Bell LJ, Bewley CA.

J Org Chem. 2010 Jul 2;75(13):4344-55. doi: 10.1021/jo100076g.

14.

Paltolides A--C, anabaenopeptin-type peptides from the palau sponge Theonella swinhoei.

Plaza A, Keffer JL, Lloyd JR, Colin PL, Bewley CA.

J Nat Prod. 2010 Mar 26;73(3):485-8. doi: 10.1021/np900728x.

15.

Acrolein-derived DNA adduct formation in human colon cancer cells: its role in apoptosis induction by docosahexaenoic acid.

Pan J, Keffer J, Emami A, Ma X, Lan R, Goldman R, Chung FL.

Chem Res Toxicol. 2009 May;22(5):798-806. doi: 10.1021/tx800355k.

16.

Motualevic acids A-F, antimicrobial acids from the sponge Siliquariaspongia sp.

Keffer JL, Plaza A, Bewley CA.

Org Lett. 2009 Mar 5;11(5):1087-90. doi: 10.1021/ol802890b.

17.

Celebesides A-C and theopapuamides B-D, depsipeptides from an Indonesian sponge that inhibit HIV-1 entry.

Plaza A, Bifulco G, Keffer JL, Lloyd JR, Baker HL, Bewley CA.

J Org Chem. 2009 Jan 16;74(2):504-12. doi: 10.1021/jo802232u.

18.

More tributes...

Keffer JH.

MLO Med Lab Obs. 2007 Jul;39(7):9. No abstract available.

PMID:
17702112
19.

Ethical and legal issues of conducting nursing research via the Internet.

Ellett ML, Lane L, Keffer J.

J Prof Nurs. 2004 Jan-Feb;20(1):68-74. Review.

PMID:
15011195
20.

Use of Chlorella vulgaris for CO(2) mitigation in a photobioreactor.

Keffer JE, Kleinheinz GT.

J Ind Microbiol Biotechnol. 2002 Nov;29(5):275-80.

PMID:
12407463
21.

The importance of heterogeneous detection as troponin becomes the standard in the diagnosis of myocardial infarction.

Keffer J.

Am Clin Lab. 2001 Jun;20(5):31-5. Review. No abstract available.

PMID:
11505876
23.
24.
25.

Effects of repeated electrical defibrillations on cardiac troponin I levels.

Joglar JA, Kessler DJ, Welch PJ, Keffer JH, Jessen ME, Hamdan MH, Page RL.

Am J Cardiol. 1999 Jan 15;83(2):270-2, A6.

PMID:
10073835
26.

Maternal cardiac troponin I levels during normal labor and delivery.

Shivvers SA, Wians FH Jr, Keffer JH, Ramin SM.

Am J Obstet Gynecol. 1999 Jan;180(1 Pt 1):122.

PMID:
9914590
27.

Biochemical advances in detection of the acute coronary syndromes: Implications for therapeutic decisions.

Keffer JH.

Indian J Clin Biochem. 1999 Jan;14(1):34-9. doi: 10.1007/BF02869149.

28.

Cardiac troponin I measurement with the ACCESS immunoassay system: analytical and clinical performance characteristics.

Christenson RH, Apple FS, Morgan DL, Alonsozana GL, Mascotti K, Olson M, McCormack RT, Wians FH Jr, Keffer JH, Duh SH.

Clin Chem. 1998 Jan;44(1):52-60.

30.

Why cardiospecificity is preeminent in myocardial markers of injury.

Keffer JH.

Clin Lab Med. 1997 Dec;17(4):727-35. Review.

PMID:
9439881
31.

A proposed framework for teaching and evaluating critical thinking in nursing.

Dexter P, Applegate M, Backer J, Claytor K, Keffer J, Norton B, Ross B.

J Prof Nurs. 1997 May-Jun;13(3):160-7.

PMID:
9167405
32.

Point-of-care testing and length of stay.

Keffer JH.

Clin Chem. 1997 May;43(5):859-60. No abstract available.

33.

The cardiac profile and proposed practice guideline for acute ischemic heart disease.

Keffer JH.

Am J Clin Pathol. 1997 Apr;107(4):398-409. Review.

PMID:
9124208
34.

Comparison of cardiac troponin I and lactate dehydrogenase isoenzymes for the late diagnosis of myocardial injury.

Martins JT, Li DJ, Baskin LB, Jialal I, Keffer JH.

Am J Clin Pathol. 1996 Dec;106(6):705-8.

PMID:
8980345
35.

Thyroid function testing: toward efficiency and effectiveness.

Keffer JH.

Arch Pathol Lab Med. 1996 Oct;120(10):913-4. No abstract available.

PMID:
12046603
36.

Effects of cocaine on anterior pituitary and gonadal hormones.

Heesch CM, Negus BH, Bost JE, Keffer JH, Snyder RW 2nd, Eichhorn EJ.

J Pharmacol Exp Ther. 1996 Sep;278(3):1195-200.

PMID:
8819502
37.

Troponin I in hypothyroidism.

Cohen LF, Mohabeer AJ, Keffer JH, Jialal I.

Clin Chem. 1996 Sep;42(9):1494-5. No abstract available.

38.

Endocrinopathy and ectopic hormones in malignancy.

Keffer JH.

Hematol Oncol Clin North Am. 1996 Aug;10(4):811-23. Review.

PMID:
8811303
39.

Myocardial markers of injury. Evolution and insights.

Keffer JH.

Am J Clin Pathol. 1996 Mar;105(3):305-20. Review.

PMID:
8602612
40.

Preanalytical considerations in testing thyroid function.

Keffer JH.

Clin Chem. 1996 Jan;42(1):125-34. Review.

41.
42.

Thrombolytic therapy and implications for the clinical laboratory.

Keffer JH.

Am J Clin Pathol. 1996 Jan;105(1):1-2. No abstract available.

PMID:
8561073
43.

Postburn cardiac contractile function and biochemical markers of postburn cardiac injury.

Horton JW, Garcia NM, White DJ, Keffer J.

J Am Coll Surg. 1995 Oct;181(4):289-98.

PMID:
7551321
44.

Economic considerations of point-of-care testing.

Keffer JH.

Am J Clin Pathol. 1995 Oct;104(4 Suppl 1):S107-10. Review.

PMID:
7484941
45.

Nonspecific elevation of troponin T levels in patients with chronic renal failure.

Li D, Keffer J, Corry K, Vazquez M, Jialal I.

Clin Biochem. 1995 Aug;28(4):474-7. No abstract available.

PMID:
8521605
46.

Effects of cocaine on cortisol secretion in humans.

Heesch CM, Negus BH, Keffer JH, Snyder RW 2nd, Risser RC, Eichhorn EJ.

Am J Med Sci. 1995 Aug;310(2):61-4.

PMID:
7631644
47.

False-positive serum prostate-specific antigen values in a patient with non-Hodgkin lymphoma of the kidney.

Djavan B, Keffer JH, Molberg K, Roehrborn CG.

Urology. 1995 May;45(5):875-8.

PMID:
7538247
48.

Subforms of creatine kinase MB in the diagnosis of myocardial infarction.

Keffer JH.

N Engl J Med. 1995 Mar 2;332(9):608; author reply 609-10. No abstract available.

PMID:
7838201
49.

Productivity in the clinical laboratory.

Keffer JH.

Clin Lab Manage Rev. 1994 Jul-Aug;8(4):408, 402-7. No abstract available.

PMID:
10135896
50.

Economics of CK-MB.

Keffer JH.

CAP Today. 1994 Apr;8(4):9. No abstract available.

PMID:
10147365

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