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Items: 32

1.

Properties of some of the newer cephalosporins.

O'Callaghan CH.

Med Lab Sci. 1984 Jul;41(3):279-84. No abstract available.

PMID:
6332970
2.

Principal beta-lactamases responsible for resistance to beta-lactam antibiotics in urinary tract infections.

Simpson IN, Harper PB, O'Callaghan CH.

Antimicrob Agents Chemother. 1980 Jun;17(6):929-36.

3.

Structure-activity relations and beta-lactamase resistance.

O'Callaghan CH.

Philos Trans R Soc Lond B Biol Sci. 1980 May 16;289(1036):197-205.

PMID:
6109316
4.

GR 20263, a new broad-spectrum cephalosporin with anti-pseudomonal activity.

O'Callaghan CH, Acred P, Harper PB, Ryan DM, Kirby SM, Harding SM.

Antimicrob Agents Chemother. 1980 May;17(5):876-83.

5.

Description and classification of the newer cephalosporins and their relationships with the established compounds.

O'Callaghan CH.

J Antimicrob Chemother. 1979 Nov;5(6):635-71. Review. No abstract available.

PMID:
119786
6.

beta-lactam antibiotics.

Walker T, Muggleton PW, O'Callaghan CH.

G Ital Chemioter. 1979 Jan-Dec;26(1-2):3-16. Review. No abstract available.

PMID:
400142
7.

Irreversible effects of serum proteins on beta-lactam antibiotics.

O'Callaghan CH.

Antimicrob Agents Chemother. 1978 Apr;13(4):628-33.

8.

A new cephalosporin with a dual mode of action.

O'Callaghan CH, Sykes RB, Staniforth SE.

Antimicrob Agents Chemother. 1976 Aug;10(2):245-8.

9.

Cefuroxime, a new cephalosporin antibiotic: activity in vitro.

O'Callaghan CH, Sykes RB, Griffiths A, Thornton JE.

Antimicrob Agents Chemother. 1976 Mar;9(3):511-9.

10.

Cefuroxime - a new cephalosporin antibiotic.

O'Callaghan CH, Sykes RB, Ryan DM, Foord RD, Muggleton PW.

J Antibiot (Tokyo). 1976 Jan;29(1):29-37.

11.

R-factor mediated beta-lactamase production by Haemophilus influenzae.

Sykes RB, Matthew M, O'Callaghan CH.

J Med Microbiol. 1975 Aug;8(3):437-41.

PMID:
1080810
12.

Classification of cephalosporins by their antibacterial activity and pharmacokinetic properties.

O'Callaghan CH.

J Antimicrob Chemother. 1975;1(3 Suppl):1-12. No abstract available.

PMID:
1104556
13.

Beta-lactamase assays.

Ross GW, O'Callaghan CH.

Methods Enzymol. 1975;43:69-85. No abstract available.

PMID:
237219
14.

Comparison of assay techniques for beta-lactamase activity.

Ross GW, Chanter KV, Harris AM, Kirby SM, Marshall MJ, O'Callaghan CH.

Anal Biochem. 1973 Jul;54(1):9-16. No abstract available.

PMID:
4725679
15.

Serum and blood concentration of sodium cephalexin in man given single intramuscular and intravenous injections.

Gower PE, Dash CH, O'Callaghan CH.

J Pharm Pharmacol. 1973 May;25(5):376-81. No abstract available.

PMID:
4146392
16.

Correlation between hydrolysis of the -lactam bond of the cephalosporin nucleus and expulsion of the 3-substituent.

O'Callaghan CH, Kirby SM, Morris A, Waller RE, Duncombe RE.

J Bacteriol. 1972 Jun;110(3):988-91.

17.

Novel method for detection of beta-lactamases by using a chromogenic cephalosporin substrate.

O'Callaghan CH, Morris A, Kirby SM, Shingler AH.

Antimicrob Agents Chemother. 1972 Apr;1(4):283-8.

18.

A new approach to the study of serum concentrations of orally administered cephalexin.

O'Callaghan CH, Tootill JP, Robinson WD.

J Pharm Pharmacol. 1971 Jan;23(1):50-7. No abstract available.

PMID:
4395890
19.

Some cephalosporins in clinical use and their structure-activity relationships.

O'Callaghan CH, Kirby SM.

Postgrad Med J. 1970 Oct:Suppl:9-13. No abstract available.

PMID:
4922713
20.

Fate of selected cephalosporins in the alimentary tract of rats.

O'Callaghan CH, Ryan DM, Kirby SM, Ross GW.

J Med Microbiol. 1970 Aug;3(3):521-8. No abstract available.

PMID:
5472917
21.

Laoratory appraisal of cephalexin.

Muggleton PW, O'Callaghan CH, Foord RD, Kirby SM, Ryan DM.

Antimicrob Agents Chemother (Bethesda). 1968;8:353-60. No abstract available.

PMID:
5735380
22.

Effects of beta-lactamase from gram-negative organisms on cephalosporins and penicillins.

O'Callaghan CH, Muggleton PW, Ross GW.

Antimicrob Agents Chemother (Bethesda). 1968;8:57-63. No abstract available.

PMID:
5195741
23.

The action of cephaloridine with cloxacillin or methicillin against beta-lactamase-producing gram-negative bacteria.

O'Callaghan CH, Muggleton PW.

J Gen Microbiol. 1967 Sep;48(3):449-60. No abstract available.

PMID:
4964029
24.

The antibacterial activities of cephaloridine: laboratory investigation.

Muggleton PW, O'Callaghan CH.

Postgrad Med J. 1967 Aug;43:Suppl 43:17-22. No abstract available.

PMID:
6069444
25.

Microbiological assay of mixed cephalosporins.

O'Callaghan CH, Kirby SM, Wishart DR.

Antimicrob Agents Chemother (Bethesda). 1967;7:716-22. No abstract available.

PMID:
5596211
26.

Inhibition of beta-lactamase decomposition of cephaloridine and cephalothin by other cephalosporins.

O'Callaghan CH, Muggleton PW, Kirby SM, Ryan DM.

Antimicrob Agents Chemother (Bethesda). 1966;6:337-43. No abstract available.

PMID:
5183152
27.

LABORATORY EVALUATIOON OF A NEW ANTIBIOTIC--CEPHALORIDINE (CEPORIN).

MUGGLETON PW, O'CALLAGHAN CH, STEVENS WK.

Br Med J. 1964 Nov 14;2(5419):1234-7. No abstract available.

28.

THE FORMATION OF METABOLITES FROM CEPHALOSPORIN COMPOUNDS.

O'CALLAGHAN CH, MUGGLETON PW.

Biochem J. 1963 Nov;89:304-8. No abstract available.

29.

A note on the comparison of the microbiological potencies of two different growth factors with special reference to the assay of desdimethylcyanocobalamin.

FANTES KH, GOODINSON DW, O'CALLAGHAN CH.

Biochim Biophys Acta. 1956 May;20(2):397-8. No abstract available.

PMID:
13328869
30.

The effect of o-phenylenediamine on the biosynthesis of vitamin B12: a new vitamin B12 analogue.

FANTES KH, O'CALLAGHAN CH.

Biochem J. 1955 Jan;59(1):79-82. No abstract available.

31.

The biosynthesis of a new vitamin B12 analogue.

FANTES KH, O'CALLAGHAN CH.

Biochem J. 1954 Jul 16;58(331st Meeting):xxi. No abstract available.

PMID:
13208612
32.

Haem utilisation and nitrate reduction by Haemophilus influenzae.

SMITH W, HALE JH, O'CALLAGHAN CH.

J Pathol Bacteriol. 1953 Jan;65(1):229-38. No abstract available.

PMID:
13035616

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