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- Hertz, E., et al.
(författare)
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First Clinicogenetic Description of Parkinson's Disease Related to GBA Mutation S107L
- 2019
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Ingår i: Movement Disorders Clinical Practice. - : Wiley. - 2330-1619. ; 6:3, s. 254-258
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Tidskriftsartikel (refereegranskat)abstract
- Background Mutations in the glucocerebrosidase gene (GBA) are a common genetic risk factor for Parkinson's disease (PD). Mutations in the N-terminus part of GBA are less commonly found in association with PD than those in the C-terminus. Phenotypic characterization of GBA-related PD has been challenging, in part attributed to differential impact of distinct GBA mutations. Aim To provide a phenotypic description of two patients with PD heterozygous for the GBA mutation S107L. The S107L mutation is located in the catalytic domain of glucocerebrosidase and has not previously been reported in patients with PD. Methods Motor and nonmotor symptoms (NMS) of PD were evaluated using established rating scales and questionnaires. The genotype was determined by Sanger sequencing. Results Two half-brothers, both heterozygous carriers of S107L, exhibited an early PD onset with several NMS. Conclusions In these patients, heterozygosity for S107L was associated with an early onset of PD with NMS.
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- Almqvist, Fredrik, et al.
(författare)
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Spirobicyclo[2.2.2]octane derivatives: mimetics of baccatin III and paclitaxel (Taxol)
- 2004
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Ingår i: Organic and Biomolecular Chemistry. - 1477-0539. ; 2:21, s. 3085-3090
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Tidskriftsartikel (refereegranskat)abstract
- The formylated spirobyclic alcohol 8a was computer modeled to be a mimetic of paclitaxel. In this model, the formyl group was used as a truncated paclitaxel side chain in order to reduce the computational work. Compound 8c, carrying the paclitaxel side chain, was synthesized in six steps from optically active 1,3-diketone 12. Microtubule stabilization was not observed for 8c, indicating that the model needs to be adjusted.
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- Ashton, M, et al.
(författare)
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Quantitative in vivo and in vitro sex differences in artemisinin metabolism in rat
- 1999
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Ingår i: Xenobiotica. - : Informa UK Limited. - 0049-8254 .- 1366-5928. ; 29:2, s. 195-204
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Tidskriftsartikel (refereegranskat)abstract
- 1. The pharmacokinetics of the antimalarial compound artemisinin were compared in the male and female Sprague-Dawley rat after single dose i.v. (20 mg.kg(-1)) or i.p. (50 mg.kg(-1)) administration of an emulsion formulation. 2. Plasma clearance of artemisinin was 12.0 (95 % confidence interval: 10.4, 13.0) l.h(-1).kg(-1) in the male rat and 10.6 (95% CI: 7.5, 15.0) I.h(-1).kg(-1) in the female rat suggesting high hepatic extraction in combination with erythrocyte uptake or clearance. Artemisinin half-life was similar to 0.5 h after both routes of administration in both sexes. Values for plasma clearance and half-lives did not statistically differ between the sexes. 3. After i.p. administration artemisinin AUCs were 2-fold higher in the female compared with male rat (p < 0.001). Artemisinin disappearance was 3.9-fold greater in microsomes from male compared with female livers and it was inhibited in male microsomes by goat or rabbit serum containing antibodies against CYP2C11 and CYP3A2 but not CYP2B1 or CYP2E1. 4. The unbound fraction of artemisinin in plasma was lower (p < 0.001) in plasma obtained from the male (8.8+/-2.0%) compared with the female rat (11.7+/-2.2%). 5. The possibility of a marked sex difference, dependent on the route of administration, has to be taken into account in the design and interpretation of toxicological studies of artemisinin in this species.
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