O. Walker

Most-cited papers

Malaria in Nigeria: a revisit.
L. Salako, F. O. Ajayi, A. Sowunmi, O. Walker
1990Annals of Tropical Medicine and Parasitology129 citations
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Prognostic risk factors and post mortem findings in cerebral malaria in children.
O. Walker, L. Salako, A. Sowunmi, J. Thomas +2 more
1992Transactions of the Royal Society of Tropical Medicine and Hygiene84 citations
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Reduced in-vitro susceptibility to mefloquine in West African isolates of Plasmodium falciparum.
A. Oduola, L. Salako, W. K. Milhous, O. Walker +1 more
1987The Lancet83 citations
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The disposition of amodiaquine in Zambians and Nigerians with malaria.
P. Winstanley, O. Simooya, J. Kofiekue, O. Walker +4 more
1990British Journal of Clinical Pharmacology73 citations Open access
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Innate resistance to new antimalarial drugs in Plasmodium falciparum from Nigeria.
A. Oduola, A. Sowunmi, W. Milhous, Dennis Kyle +3 more
1992Transactions of the Royal Society of Tropical Medicine and Hygiene66 citations
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Characterization of chloroquine plasma protein binding in man.
O. Walker, D. Birkett, G. Alvan, L. Gustafsson +1 more
1983British Journal of Clinical Pharmacology63 citations Open access
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Pruritus and antimalarial drugs in Africans.
A. Sowunmi, O. Walker, L. Salako
1989The Lancet60 citations
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Sensitivity of Plasmodium falciparum to chloroquine and sulfadoxine/pyrimethamine in Nigerian children.
O. J. Ekanem, J. Weisfeld, L. Salako, B. Nahlen +5 more
1990Bulletin of the World Health Organization54 citations
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The disposition of chloroquine in healthy Nigerians after single intravenous and oral doses.
O. Walker, L. Salako, G. Alvan, Ō. Ericsson +1 more
1987British Journal of Clinical Pharmacology53 citations Open access
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Protein energy malnutrition and cerebral malaria in Nigerian children.
P. Olumese, O. Sodeinde, O. Ademowo, O. Walker
1997Journal of Tropical Pediatrics46 citations
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An open randomized comparative study of intramuscular artemether and intravenous quinine in cerebral malaria in children.
O. Walker, L. Salako, S. Omokhodion, A. Sowunmi
1993Transactions of the Royal Society of Tropical Medicine and Hygiene43 citations
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A longitudinal study of seroreactivities to Plasmodium falciparum antigens in Nigerian infants during their first year of life.
E. Achidi, H. Perlmann, L. Salimonu, P. Perlmann +2 more
1995Acta Tropica41 citations
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Single dose disposition of chloroquine in kwashiorkor and normal children--evidence for decreased absorption in kwashiorkor.
O. Walker, A. Dawodu, L. Salako, G. Alvan +1 more
1987British Journal of Clinical Pharmacology40 citations Open access
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Pharmacokinetics of quinine in African patients with acute falciparum malaria.
C. Babalola, O. Bolaji, F. A. Ogunbona, A. Sowunmi +1 more
1998Pharmacy World & Science29 citations
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Neuropsychiatric side effects of mefloquine in Africans.
A. Sowunmi, L. Salako, A. Oduola, O. Walker +2 more
1993Transactions of the Royal Society of Tropical Medicine and Hygiene29 citations
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Evaluation of the clinical efficacy and safety of halofantrine in falciparum malaria in Ibadan, Nigeria.
L. Salako, A. Sowunmi, O. Walker
1990Transactions of the Royal Society of Tropical Medicine and Hygiene29 citations
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Clinical efficacy of mefloquine in children suffering from chloroquine-resistant Plasmodium falciparum malaria in Nigeria.
A. Sowunmi, L. Salako, O. Walker, O. Ogundahunsi
1990Transactions of the Royal Society of Tropical Medicine and Hygiene28 citations
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Comparative efficacy of intramuscular artemether and intravenous quinine in Nigerian children with cerebral malaria.
P. Olumese, A. Björkman, R. Gbadegesin, Adebowale Adeyemo +1 more
1999Acta Tropica25 citations
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The relationship between the response of Plasmodium falciparum malaria to mefloquine in African children and its sensitivity in vitro.
A. Sowunmi, A. Oduola, L. Salako, O. Ogundahunsi +2 more
1992Transactions of the Royal Society of Tropical Medicine and Hygiene25 citations
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Retinal haemorrhage in cerebral malaria.
P. Olumese, Adebowale Adeyemo, R. Gbadegesin, O. Walker
1997East African Medical Journal24 citations
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A rapid, cost-effective liquid chromatographic method for the determination of chloroquine and desethylchloroquine in biological fluids.
O. Walker, O. Ademowo
1996Therapeutic Drug Monitoring21 citations
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The clinical manifestations of cerebral malaria among Nigerian children with the sickle cell trait.
P. Olumese, A. Adeyemo, O. Ademowo, R. Gbadegesin +2 more
1997Annals of Tropical Paediatrics20 citations
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Hyperparasitaemia: not a reliable indicator of severity or poor prognosis in falciparum malaria in children in endemic African countries.
A. Sowunmi, O. Walker, L. Salako
1992Annals of Tropical Paediatrics20 citations
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Influence of route of administration on the pharmaco-kinetics of chloroquine and desethylchloroquine.
L. Salako, A. Aderounmu, O. Walker
1987Bulletin of the World Health Organization20 citations
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Chloroquine resistance of Plasmodium falciparum is associated with severity of disease in Nigerian children.
P. Olumese, O. Amodu, A. Björkman, A. Adeyemo +2 more
2002Transactions of the Royal Society of Tropical Medicine and Hygiene19 citations
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Artemether in moderately severe and cerebral malaria in Nigerian children.
L. Salako, O. Walker, A. Sowunmi, S. Omokhodion +2 more
1994Transactions of the Royal Society of Tropical Medicine and Hygiene19 citations
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Pharmacokinetics of chloroquine in renal insufficiency.
L. Salako, O. Walker, A. Iyun
1984African journal of medicine and medical sciences19 citations
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The disposition of chloroquine and its main metabolite desethylchloroquine in volunteers with and without chloroquine‐induced pruritus: Evidence for decreased chloroquine metabolism in volunteers with pruritus
O. Ademowo, O. Sodeinde, O. Walker
2000Clinical pharmacology and therapy18 citations
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The in vivo sensitivity of Plasmodium falciparum to chloroquine and to sulphadoxine-pyrimethamine combination in Ibadan, Nigeria.
A. Olatunde, L. Salako, O. Walker
1981Transactions of the Royal Society of Tropical Medicine and Hygiene16 citations
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Therapeutic monitoring of chloroquine in pregnant women with malaria.
TO Fakeye, F. Fehintola, O. Ademowo, O. Walker
2004West African Journal of Medicine15 citations
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Chloroquine sensitivity of Plasmodium falciparum in Ibadan, Nigeria: II. Correlation of in vitro with in vivo sensitivity.
A. Aderounmu, L. Salako, O. Walker
1981Transactions of the Royal Society of Tropical Medicine and Hygiene15 citations
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Parenteral sulphadoxine-pyrimethamine (Fansidar): an effective and safe but under-used method of anti-malarial treatment.
L. Salako, Risquat A. Adio, A. Sowunmi, O. Walker
1990Transactions of the Royal Society of Tropical Medicine and Hygiene14 citations
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Respiratory distress adversely affects the outcome of childhood cerebral malaria.
P. Olumese, O. Sodeinde, R. Gbadegesin, O. Nafiu +2 more
1995Transactions of the Royal Society of Tropical Medicine and Hygiene13 citations
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Cerebral malaria in non-paediatric subjects resident in southwestern Nigeria.
A. Sowunmi, O. Walker, L. Salako
1993African journal of medicine and medical sciences9 citations
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Mefloquine-sulphadoxine-pyrimethamine (Fansimef, Roche) in the prophylaxis of Plasmodium falciparum malaria: a double-blind, comparative, placebo-controlled study.
L. Salako, R. Adio, O. Walker, A. Sowunmi +4 more
1992Annals of Tropical Medicine and Parasitology9 citations
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The sensitivity of Plasmodium falciparum to chloroquine and amodiaquine in Ibadan, Nigeria.
O. Walker, L. Salako, P. Obih, K. Bademosi +1 more
1984Transactions of the Royal Society of Tropical Medicine and Hygiene9 citations
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Effect of Plasmodium falciparum malaria on plasma fibrinopeptide-A (FpA) concentration.
E. O. Jimmy, I. Saliu, I. Okpala, O. Walker +3 more
1995Central African Journal of Medicine8 citations
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Parenteral therapy of moderately severe malaria: comparison of intramuscular artemether and intramuscular sulfadoxine-pyrimethamine.
L. Salako, O. Walker, A. Sowunmi
1994Transactions of the Royal Society of Tropical Medicine and Hygiene7 citations
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Changes in lipid and lipoprotein values during a cross-over treatment of doxazosin, moduretic and amlodipine in hypertensive patients.
J. Ahaneku, G. Taylor, E. Agbedana, O. Walker +1 more
1994JPMA. The Journal of the Pakistan Medical Association6 citations
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Pitfalls in the diagnosis of malaria: a-parasitaemic severe malaria.
O. Walker, A. Sowunmi, L. Salako
1992Journal of Tropical Pediatrics6 citations
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Amlodipine as monotherapy in hypertensive Africans: clinical efficacy and safety studies.
A. Sowunmi, O. Walker, L. Salako
1996African journal of medicine and medical sciences5 citations
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Effects of amlodipine on plasma lipid and lipoprotein levels in hypertensive patients
J. E. Ahaneku, G. Taylor, E. Agbedana, O. Walker +2 more
1992Journal of Internal Medicine5 citations
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Dose linearity of quinine in healthy human subjects
C. Babalola, O. Bolaji, F. A. Ogunbona, A. Sowunmi +1 more
19974 citations
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Assessment of a fixed-dosage combination of atenolol and chlorthalidone (Tenoretic) in hypertensive Nigerians.
L. Salako, A. Falase, A. Aderounmu, O. Walker
1990African journal of medicine and medical sciences4 citations
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Severe falciparum malaria: survival with oral therapy.
A. Sowunmi, O. Walker, J. Akindele
1992Tropical and geographical medicine2 citations
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Biochemical changes during amlodipine treatment in hypertensive patients
J. Ahaneku, G. Taylor, O. Walker, E. Agbedana +2 more
2004European Journal of Clinical Pharmacology1 citations
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Biochemical changes during moduretic treatment of hypertension in African patients.
J. Ahaneku, G. Taylor, O. Walker, E. Agbedana +1 more
1995The Kobe journal of medical sciences1 citations
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The effects of doxazosin on plasma lipid and lipoprotein levels in hypertensive patients.
J. Ahaneku, G. Taylor, E. Agbedana, O. Walker +1 more
1994Pharmacological Research1 citations
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Effects of moduretic on plasma lipid and lipoprotein levels in hypertensive African patients.
J. Ahaneku, G. Taylor, O. Agbedana, O. Walker +1 more
1993The Tokai Journal of Experimental and Clinical Medicine1 citations
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Malaria and the problem of drug resistant Plasmodium falciparum.
O. Walker
1993African journal of medicine and medical sciences1 citations
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