Sökning: "Pharmaceutical Biochemistry"
Visar resultat 6 - 10 av 64 avhandlingar innehållade orden Pharmaceutical Biochemistry.
6. Cytochrome P450 enzymes in oxygenation of prostaglandin endoperoxides and arachidonic acid : Cloning, expression and catalytic properties of CYP4F8 and CYP4F21
Sammanfattning : Cytochrome P450 (P450 or CYP) is an enzyme system involved in the oxygenation of a wide range of endogenous compounds as well as foreign chemicals and drugs. This thesis describes investigations of P450-catalyzed oxygenation of prostaglandins, linoleic and arachidoniacids. LÄS MER
7. Enzymes in different pathways of bile acid biosynthesis
Sammanfattning : Enzymes catalyzing side chain hydroxylations and dehydrogenation/isomerization in different pathways of bile acid biosynthesis were studied.Pig liver mitochondrial sterol 27-hydroxylase (CYP27A) was found to catalyze 24- and 25-hydroxylation of cholesterol in addition to the known 27-hydroxylation. LÄS MER
8. Cytochrome P450 Enzymes in the Metabolism of Vitamin D3
Sammanfattning : A cytochrome P450 enzyme in pig kidney that catalyzes the hydroxylations of vitamin D3 and C27-sterols was cloned. DNA sequence analysis of the cDNA revealed that the enzyme belongs to the CYP27 family. The recombinant kidney CYP27A enzyme catalyzed the 25-hydroxylation of vitamin D3 and the 27-oxygenation of C27-sterols. LÄS MER
9. Cytochrome P450 Enzymes in the Metabolism of Cholesterol and Cholesterol Derivatives
Sammanfattning : Cholesterol is metabolized to a variety of important biological products in the body including bile acids and vitamin D. The present investigation is focused on enzymes that catalyze 7α-hydroxylation or 27-hydroxylation in the metabolism of cholesterol, oxysterols (side chain-hydroxylated derivatives of cholesterol) and vitamin D3. LÄS MER
10. The Impact of Substance P (SP) N-Terminal Metabolite SP1-7 in Opioid Tolerance and Withdrawal
Sammanfattning : The heptapeptide SP1-7, a metabolite of the neuroactive peptide substance P (SP), is suggested to play a role in opioid addiction and memory function. These two dimensions are known to involve dopamine and glutamate transmissions mediated through dopamine receptors and N-methyl-D- aspartate (NNMA) receptors, respectively. LÄS MER