Are Platelet Cytosolic Free Calcium, Serotonin Concentration and Blood Viscosity Different between Hypertensive and Normotensive Subjects?

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Abstract

In this study, the platelet intracellular calcium and serotonin (5-HT) concentrations as well as the hemorheological properties were compared in 65 hypertensive (HT) and 25 age-matched normotensive (NT) subjects. The result showed that the platelet intracellular calcium concentration in the HT group was significantly higher than in the NT group (165.4 ± 12.6 vs. 118.9 ± 12.4 nM, p < 0.05). However, the platelet 5-HT content in the HT group was significantly lower than in the NT group (0.28 ± 0.03 vs. 0.38 ± 0.03 nmol/10<sup>8</sup> platelets, p < 0.05). Moreover, red cell flexibility, red cell deformability, hematocrit, fibrinogen concentration and plasma viscosity were all significantly increased in HT subjects. The whole blood viscosity was generally higher in the HT group. In conclusion, the higher platelet intracellular calcium and lower 5-HT level as well as abnormality of hemorheological properties may be important factors in the initiation and perpetuation of hypertension.

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Journal

Journal ID (publisher-id): CRD

Journal ID (nlm-ta): Cardiology

Journal ID (doi): 10.1159/issn.0008-6312

Title: Cardiology

Publisher: S. Karger AG

ISSN (Print): 0008-6312

ISSN (Electronic): 1421-9751

Publication date Subscription-year: 1994

Publication date (Print): 1994

Publication date (Electronic): 18 November 2008

Volume: 85

Issue: 2

Pages: 76-81

Affiliations

^aDepartment of Medicine and ^bGraduate Institute of Life Sciences, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC

Article

Publisher ID: 176650 Other ID: Cardiology 1994;85:76–81

DOI: 10.1159/000176650

PubMed ID: 7954566

SO-VID: 1efec055-f3ab-4c76-9d37-46225eb4bc45

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Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

History

Date received : 08 October 1993

Date accepted : 25 February 1994

Page count

Pages: 6

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