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This paper examines the 'clash of frameworks' evident when several policy fields are juxtaposed, and the implications of judicial review for the ability of the state to achieve its health policy objectives. We concentrate on two interrelated issues: the 'rights' of physicians to set their own fee levels for services insured by provincial health plans, and to select their practice location while retaining the ability to bill a provincial plan for services rendered. On a more general level, the paper is also concerned with the potential conflict between the Charter of Rights and Freedoms with its emphasis on individual rights, and regulatory policies which are primarily concerned with efficient distribution of resources, the welfare of society, and addressing perceived problems within the health care system. Five frameworks are considered: constitutional, Charter, mainstream economics, health policy, and political. The likely balance among them is discussed. (Reprinted by permission of the publisher.)

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We present the positive outcome of a pregnancy in a woman with severe classic maple syrup urine disease (MSUD). Maintaining the maternal plasma levels of leucine between 200 and 300 μmol/L allowed normal development of the foetus. Tolerance of protein and leucine increased continuously from the 16th gestational week until delivery. The patient was able to increase protein and leucine intake from 5 g to nearly 30 g and 300-3,000 mg/day, respectively. Weekly measurement of branched-chain amino acid (BCAA) concentrations and the assessment of dietary intake were used to adjust protein intake. After 41 weeks of pregnancy, she gave birth to a healthy baby girl and was able to breastfeed her daughter for 6 months during which time, the protein and leucine intake were lower than during pregnancy, but higher than with her usual pre-pregnancy diet. The development of the girl is normal at the age of 3 years.

Objective: Glucagon-like peptide I(7-36) (GLP-I) amide, an endogenous incretin, has been identified as a potential adjunct to the treatment of NIDDM and has been studied following intravenous and subcutaneous injection. A mucoadhesive buccal GLP-I tablet containing 119 nmol has been developed to provide transmucosal absorption as a possible alternative to injection treatment., Research Design and Methods: Eight healthy volunteers received a single tablet under fasting conditions in this randomized double-blind placebo-controlled study. A total GLP-I immunoreactivity was measured using COOH-terminal radioimmunoassay (RIA) (total peptide activity) and NH2-terminal RIA (active, nondegraded peptide)., Results: The mean (+/- SE) peak GLP-I concentration was 117 +/- 19 pmol/l and occurred 30 +/- 4 min after application. The mean placebo-adjusted area under curve was 8,145 +/- 873 pmol.min-1.l-1, consistent with a relative bioavailability of 7% versus intravenous injection and 47% versus subcutaneous injection. The levels of active peptide increased in parallel with total GLP-I. Half-life of peptide activity after buccal administration was 27 and 24 min measured with COOH-terminal and NH2-terminal RIA, respectively. Placebo adjusted insulin concentrations increased to a peak of 252 +/- 57 pmol/l, glucose decreased 1.4 +/- 0.2 mmo/l, and glucagon decreased 17 +/- 3 ng/l, consistent with the increase in plasma GLP-I concentrations., Conclusions: Therapeutic plasma levels of GLP-I in humans were achieved after a single buccal tablet. No increased degradation of GLP-I was found in the buccal mucosa compared to subcutaneous tissue. This alternative treatment form may be feasible in in the future for NIDDM.

The administration of large doses of probenecid has been used to study the central nervous system metabolism of catecholamines and indoleamines in patients with affective disease. It has been reported that alterations of the binding of L-tryptophan to plasma albumin binding sites occur during probenecid administration. The present study sought to determine if the administration of large doses of L-tryptophan affected probenecid concentrations in cerebrospinal fluid and/or plasma. The data indicate that during L-tryptophan treatment, plasma probenecid concentrations are reduced but that no significant alterations in cerebrospinal fluid probenecid concentrations occur. This would suggest that the kinetics of the probenecid blockade of transport of acidic biogenic amine metabolites out of cerebrospinal fluid are not altered by L-tryptophan loading.