Pirjo Ojala-Karlsson

Plasma 3, 4-dihydroxyphenylglycol (DHPG) and 3-methoxy-4- hydroxyphenylglycol (MHPG) are insensitive indicators of α2-adrenoceptor mediated regulation of norepinephrine release in healthy human volunteers

Mika Scheinin, Sakari Karhuvaara, Pirjo Ojala-Karlsson et al. · Life Sciences · 1991 · 94 citations

Norepinephrine Release, Healthy Human Volunteers, Endocrine Mechanism +10

Determination of metformin in plasma by high-performance liquid chromatography

Risto Huupponen, Pirjo Ojala-Karlsson, Juha Rouru et al. · Journal of Chromatography B Biomedical Sciences and Applications · 1992 · 56 citations

Biochemistry, Gas Chromatography, Medicine +9

Inhibition of norfloxacin absorption by dairy products

Kari T. Kivistö, Pirjo Ojala-Karlsson, Pertti J. Neuvonen · Antimicrobial Agents and Chemotherapy · 1992 · 53 citations

Nutrition, Norfloxacin Absorption, Biochemistry +9

Simultaneous inhibition of catechol-O-methyltransferase and monoamine oxidase A: Effects on hemodynamics and catecholamine metabolism in healthy volunteers*

Ari Illi, Stig Sundberg, Pirjo Ojala-Karlsson et al. · Clinical Pharmacology & Therapeutics · 1996 · 35 citations

The effect of entacapone on the disposition and hemodynamic effects of intravenous isoproterenol and epinephrine*

Ari Illi, Stig Sundberg, Pirjo Ojala-Karlsson et al. · Clinical Pharmacology & Therapeutics · 1995 · 27 citations