| 1. |
- Belfrage, Per, et al.
(författare)
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Alterations of lipid metabolism in healthy volunteers during long-term ethanol intake
- 1977
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Ingår i: European Journal of Clinical Investigation. - : Wiley. - 0014-2972 .- 1365-2362. ; 7:2, s. 127-131
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Tidskriftsartikel (refereegranskat)abstract
- Nine young, healthy male volunteers were given ethanol (75 g/day) for 5 weeks. The ethanol was divided into five daily doses and taken so that blood ethanol levels never exceeded 0.04% (w/v). During the latter part of the ethanol intake period, there was a significant, transient increase of plasma triglyceride (TG) concentrations followed by reduction to normal levels. A three-fold increase of lipoprotein lipase activity (LLA) occurred in biopsy specimens of adipose tissue. An increase of alpha-lipoprotein concentrations, which correlated significantly with the decrease in plasma TG levels and the increase in adipose LLA, was also observed during the ethanol intake period. No changes were observed in plasma cholesterol and beta-lipoprotein levels. A transient, three-fold increase of TG concentrations occurred in liver biopsy specimens. Ultrastructural and cytochemical examinations of the biopsy specimens showed hyperplasia of the smooth endoplasmic reticulum, and increased canallicular activity of gamma-glutamyl transferase (gamma-GT) activity in most subjects towards the end of and after the ethanol intake period. Serum gamma-GT levels also increased significantly.
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| 2. |
- Fäldt, R., et al.
(författare)
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Tumor‐associated humoral cytotoxicity in patients with acute myelogenous leukemia before and after chemotherapy
- 1977
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Ingår i: International Journal of Cancer. - : Wiley. - 0020-7136 .- 1097-0215. ; 20:6, s. 824-833
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Tidskriftsartikel (refereegranskat)abstract
- Sera of eight unselected adult patients with acute myelogenous leukemia obtained before and after chemotherapy were repeatedly tested for specific complement‐dependent cytotoxicity against autochthonous peripheral white blood cells from the acute leukemia stage and from the remission stage, respectively. Complement‐dependent cytotoxicity against white blood cells from the acute leukemia stage was demonstrated in all of the eight patients, while none of three patients' sera were reactive against white blood cells from the remission stage tested in parallel. The cytotoxicity was increased after chemotherapy, also in those patients in whom remission was not achieved.
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| 3. |
- Jonsson, Nils, et al.
(författare)
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Studies on adenovirus type 9‐induced mammary fibroadenomas in rats and their malignant transformation
- 1977
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Ingår i: Cancer. - 0008-543X. ; 39:6, s. 2513-2519
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Tidskriftsartikel (refereegranskat)abstract
- After inoculating newborn W/Fu rats with adenovirus type 9,27 of 27 females developed mammary fibroadenomas with a latency period of 14–25 weeks. No tumors were observed after inoculation with adenovirus type 5 or in males with the type 9 inoculation. After persistence of the tumors for 3–14 months, malignant transformation of the stroma resulted in different types of sarcoma in three rats: fibrosarcoma, round‐cell liposarcoma, osteosarcoma and malignant mes‐enchymoma. In another animal the stroma of a fibroadenoma was highly cellular, suggesting a transition into fibrosarcoma. Malignant transformation of the epithelial component was not observed. Tumor cells contained adenovirus type 9‐specific T‐antigen, and rats with transplanted tumors were immunized to T‐antigen. Mammary fibroadenomas without signs of malignant transformation developed in eight of nine female rats inoculated with adenovirus type 9 at an adult age. Neonatal thymectomy and total body x‐irradiation neither significantly shortened the induction time of adenovirus 9‐induced fibroadenomas nor increased the frequency of malignant transformation in females. One lipoma and one highly differentiated liposarcoma, however, appeared in two male rats. The results provide an example of the progression of a virus‐induced benign tumor into a malignant neoplasm.
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