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The effect of alpha...
The effect of alpha-interferon on bone marrow megakaryocytes and platelet production rate in essential thrombocythemia.
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- Wadenvik, Hans, 1955 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för invärtesmedicin, Avdelningen för internmedicin,Institute of Internal Medicine, Dept of Medicine
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- Kutti, Jack (author)
- Gothenburg University,Göteborgs universitet,Institutionen för invärtesmedicin, Avdelningen för internmedicin,Institute of Internal Medicine, Dept of Medicine
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- Ridell, Börje (author)
- Gothenburg University,Göteborgs universitet,Institutionen för laboratoriemedicin , Avdelningen för patologi,Institute of Laboratory Medicine, Dept of Pathology
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- Revesz, Peter (author)
- Gothenburg University,Göteborgs universitet,Institutionen för invärtesmedicin, Avdelningen för internmedicin,Institute of Internal Medicine, Dept of Medicine
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- Jacobsson, Stefan, 1951 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för laboratoriemedicin, Avdelningen för klinisk kemi/transfusionsmedicin,Institute of Laboratory Medicine, Dept of Clinical Chemistry/Transfusion Medicine
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- Magnusson, Bengt, 1942 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för invärtesmedicin, Avdelningen för internmedicin,Institute of Internal Medicine, Dept of Medicine
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- Westin, Jan (author)
- Gothenburg University,Göteborgs universitet,Institutionen för invärtesmedicin, Avdelningen för internmedicin,Institute of Internal Medicine, Dept of Medicine
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- Vilén, Lars (author)
- Gothenburg University,Göteborgs universitet,Institutionen för invärtesmedicin, Avdelningen för internmedicin,Institute of Internal Medicine, Dept of Medicine
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(creator_code:org_t)
- 1991
- 1991
- English.
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In: Blood. - 0006-4971. ; 77:10, s. 2103-8
- Related links:
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https://gup.ub.gu.se...
Abstract
Subject headings
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- In 10 patients with previously untreated essential thrombocythemia (ET), by using 111In-labeled platelets and megakaryocyte morphometry, the relation between platelet production rate and bone marrow megakaryocytes was evaluated before and during alpha-2b-interferon (IFN) therapy. A highly significant decrease in platelet count occurred during IFN therapy; the platelet counts, at baseline and after 2 and 6 months of IFN therapy, were 1,102 +/- 345 x 10(9)/L, 524 +/- 169 x 10(9)/L (P less than .0001), and 476 +/- 139 x 10(9)/L (P less than .0001), respectively. The decrement in platelet count was mainly a result of diminished platelet production rate, which at baseline and after 2 and 6 months of IFN therapy was 89 +/- 30 x 10(10) platelets/d, 53 +/- 18 x 10(10) platelets/d (P = .0033), and 45 +/- 20 x 10(10) platelets/d (P less than .0001), respectively. Also, a slight shortening of platelet mean life-span (MLS) was observed in response to IFN treatment; platelet MLS was 7.96 +/- 0.69 days at baseline and 6.68 +/- 1.30 days (P = .012) after 6 months of IFN therapy. IFN induced a significant decrease in bone marrow megakaryocyte volume; both megakaryocyte nuclear and cytoplasmatic volumes were affected. The mean megakaryocyte volume was 372 +/- 126 x 10(2) pL/microL at baseline and 278 +/- 147 x 10(2) pL/microL (P = .049) after 6 months of IFN therapy. However, the number of megakaryocytes did not show any significant change in response to IFN. It is concluded that alpha-IFN reduces platelet production rate and the peripheral platelet count in ET mainly through an anti-proliferative action on the megakaryocytes and to a considerably lesser degree by a shortening of platelet MLS.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Cell- och molekylärbiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Cell and Molecular Biology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Hematologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Hematology (hsv//eng)
Keyword
- Adult
- Aged
- Biopsy
- Blood Cell Count
- Blood Platelets
- physiology
- Bone Marrow Cells
- Cell Division
- Cell Nucleus
- Cytoplasm
- Female
- Hematopoiesis
- Humans
- Indium Radioisotopes
- diagnostic use
- Interferon Type I
- pharmacology
- therapeutic use
- Male
- Megakaryocytes
- physiology
- Middle Aged
- Thrombocythemia
- Essential
- blood
- physiopathology
- therapy
Publication and Content Type
- ref (subject category)
- art (subject category)
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