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Items: 33

1.

Bizarre parosteal osteochondromatous proliferation: 16 Cases with a focus on histologic variability.

Cocks M, Helmke E, Meyers CA, Fayad L, McCarthy E, James AW.

J Orthop. 2018 Jan 31;15(1):138-142. doi: 10.1016/j.jor.2018.01.028. eCollection 2018 Mar.

2.

Bacterial communities and chemical parameters in soils and coastal sediments in response to diesel spills at Carlini Station, Antarctica.

Vázquez S, Monien P, Pepino Minetti R, Jürgens J, Curtosi A, Villalba Primitz J, Frickenhaus S, Abele D, Mac Cormack W, Helmke E.

Sci Total Environ. 2017 Dec 15;605-606:26-37. doi: 10.1016/j.scitotenv.2017.06.129. Epub 2017 Jul 5.

PMID:
28662428
3.

Pelagic and benthic communities of the Antarctic ecosystem of Potter Cove: Genomics and ecological implications.

Abele D, Vazquez S, Buma AGJ, Hernandez E, Quiroga C, Held C, Frickenhaus S, Harms L, Lopez JL, Helmke E, Mac Cormack WP.

Mar Genomics. 2017 Jun;33:1-11. doi: 10.1016/j.margen.2017.05.001. Epub 2017 May 4. Review.

PMID:
28479280
4.

Isolation and Structural Elucidation of Nitrogenous Secondary vetabolites from Terrestrial and Marine Streptomyces spp.

Shaaban M, Shaaban KA, Helmke E, Grün-Wollny I, Laatsch H.

Nat Prod Commun. 2017 Mar;12(3):351-354.

PMID:
30549883
5.

Oligomycins and pamamycin homologs impair motility and induce lysis of zoospores of the grapevine downy mildew pathogen, Plasmopara viticola.

Dame ZT, Islam MT, Helmke E, von Tiedemann A, Laatsch H.

FEMS Microbiol Lett. 2016 Aug;363(16). pii: fnw167. doi: 10.1093/femsle/fnw167. Epub 2016 Jun 27.

PMID:
27354061
6.

Marine Bacteria, XLVII - Psychrotolerant Bacteria from Extreme Antarctic Habitats as Producers of Rare Bis- and Trisindole Alkaloids.

Nair V, Schuhmann I, Anke H, Kelter G, Fiebig HH, Helmke E, Laatsch H.

Planta Med. 2016 Jun;82(9-10):910-8. doi: 10.1055/s-0042-108204. Epub 2016 Jun 10.

PMID:
27286331
7.

Fujianmycin C, A bioactive angucyclinone from a marine derived Streptomyces sp. B6219.

Abdalla MA, Helmke E, Laatsch H.

Nat Prod Commun. 2010 Dec;5(12):1917-20.

PMID:
21299120
8.

Glucopiericidin C: a cytotoxic piericidin glucoside antibiotic produced by a marine Streptomyces isolate.

Shaaban KA, Helmke E, Kelter G, Fiebig HH, Laatsch H.

J Antibiot (Tokyo). 2011 Feb;64(2):205-9. doi: 10.1038/ja.2010.125. Epub 2010 Nov 17. No abstract available.

PMID:
21081953
9.

Mansouramycins A-D, cytotoxic isoquinolinequinones from a marine streptomycete.

Hawas UW, Shaaban M, Shaaban KA, Speitling M, Maier A, Kelter G, Fiebig HH, Meiners M, Helmke E, Laatsch H.

J Nat Prod. 2009 Dec;72(12):2120-4. doi: 10.1021/np900160g.

PMID:
19921834
10.

An imidazopyridinone and further metabolites from streptomycetes.

Rahman H, Shaaban M, Shaaban KA, Saleem M, Helmke E, Grün-Wollny I, Laatsch H.

Nat Prod Commun. 2009 Jul;4(7):965-70.

PMID:
19731603
11.

Nitro derivatives from the Arctic ice bacterium Salegentibacter sp. isolate T436.

Schuhmann I, Yao CB, Al-Zereini W, Anke H, Helmke E, Laatsch H.

J Antibiot (Tokyo). 2009 Aug;62(8):453-60. doi: 10.1038/ja.2009.71. Epub 2009 Jul 31.

PMID:
19644517
12.

Electrospray ionization mass spectra of piperazimycins A and B and gamma-butyrolactones from a marine-derived Streptomyces sp.

Shaaban KA, Shaaban M, Facey P, Fotso S, Frauendorf H, Helmke E, Maier A, Fiebig HH, Laatsch H.

J Antibiot (Tokyo). 2008 Dec;61(12):736-46. doi: 10.1038/ja.2008.87.

PMID:
19194032
13.

Explosive volcanism on the ultraslow-spreading Gakkel ridge, Arctic Ocean.

Sohn RA, Willis C, Humphris S, Shank TM, Singh H, Edmonds HN, Kunz C, Hedman U, Helmke E, Jakuba M, Liljebladh B, Linder J, Murphy C, Nakamura K, Sato T, Schlindwein V, Stranne C, Tausenfreund M, Upchurch L, Winsor P, Jakobsson M, Soule A.

Nature. 2008 Jun 26;453(7199):1236-8. doi: 10.1038/nature07075.

PMID:
18580949
14.

New aromatic nitro compounds from Salegentibacter sp. T436, an Arctic Sea ice bacterium: taxonomy, fermentation, isolation and biological activities.

Al-Zereini W, Schuhmann I, Laatsch H, Helmke E, Anke H.

J Antibiot (Tokyo). 2007 May;60(5):301-8.

PMID:
17551208
16.

Influence of crude oil on changes of bacterial communities in Arctic sea-ice.

Gerdes B, Brinkmeyer R, Dieckmann G, Helmke E.

FEMS Microbiol Ecol. 2005 Jun 1;53(1):129-39. Epub 2004 Dec 25.

17.

1-Hydroxy-1-norresistomycin and resistoflavin methyl ether: new antibiotics from marine-derived streptomycetes.

Kock I, Maskey RP, Biabani MA, Helmke E, Laatsch H.

J Antibiot (Tokyo). 2005 Aug;58(8):530-4.

PMID:
16266127
18.

Anti-cancer and antibacterial trioxacarcins with high anti-malaria activity from a marine Streptomycete and their absolute stereochemistry.

Maskey RP, Helmke E, Kayser O, Fiebig HH, Maier A, Busche A, Laatsch H.

J Antibiot (Tokyo). 2004 Dec;57(12):771-9.

19.

Psychrophilic versus psychrotolerant bacteria--occurrence and significance in polar and temperate marine habitats.

Helmke E, Weyland H.

Cell Mol Biol (Noisy-le-grand). 2004 Jul;50(5):553-61.

PMID:
15559972
20.

Novel caprolactones from a marine streptomycete.

Stritzke K, Schulz S, Laatsch H, Helmke E, Beil W.

J Nat Prod. 2004 Mar;67(3):395-401.

PMID:
15043417
21.

Gutingimycin: a highly complex metabolite from a marine streptomycete.

Maskey RP, Sevvana M, Usón I, Helmke E, Laatsch H.

Angew Chem Int Ed Engl. 2004 Feb 27;43(10):1281-3. No abstract available.

PMID:
14991799
22.
23.

Diversity and structure of bacterial communities in Arctic versus Antarctic pack ice.

Brinkmeyer R, Knittel K, Jürgens J, Weyland H, Amann R, Helmke E.

Appl Environ Microbiol. 2003 Nov;69(11):6610-9.

24.

Isolation and characterization of marine psychrophilic phage-host systems from Arctic sea ice.

Borriss M, Helmke E, Hanschke R, Schweder T.

Extremophiles. 2003 Oct;7(5):377-84. Epub 2003 Jun 19.

PMID:
12820036
25.
26.

Chalcomycin B, a new macrolide antibiotic from the marine isolate Streptomyces sp. B7064.

Asolkar RN, Maskey RP, Helmke E, Laatsch H.

J Antibiot (Tokyo). 2002 Oct;55(10):893-8.

27.

Cloning, expression, and characterization of a chitinase gene from the Antarctic psychrotolerant bacterium Vibrio sp. strain Fi:7.

Bendt A, Hüller H, Kammel U, Helmke E, Schweder T.

Extremophiles. 2001 Apr;5(2):119-26.

PMID:
11354455
28.
29.

New butenolides from two marine streptomycetes.

Mukku VJ, Speitling M, Laatsch H, Helmke E.

J Nat Prod. 2000 Nov;63(11):1570-2.

PMID:
11087613
30.

Anthranilamides: new antimicroalgal active substances from a marine Streptomyces sp.

Biabani MA, Baake M, Lovisetto B, Laatsch H, Helmke E, Weyland H.

J Antibiot (Tokyo). 1998 Mar;51(3):333-40.

31.

delta-Indomycinone: a new member of pluramycin class of antibiotics isolated from marine Streptomyces sp.

Biabani MA, Laatsch H, Helmke E, Weyland H.

J Antibiot (Tokyo). 1997 Oct;50(10):874-7. No abstract available.

32.

Dihydrophencomycin methyl ester, a new phenazine derivative from a marine Streptomycete.

Pusecker K, Laatsch H, Helmke E, Weyland H.

J Antibiot (Tokyo). 1997 Jun;50(6):479-83.

33.

Enzyme strip method of blood glucose determination.

Hollister LE, Helmke E, Wright A.

Diabetes. 1966 Sep;15(9):691-4. No abstract available.

PMID:
5916993

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