Abstract |
The aim of this study was to evaluate platelet activation through P-selectin, and PDGF-AB and TGF beta 1 content, in schistosomiasis patients who developed fibrosis (F3) and who did not present this (F0), and in a control group (C). The results showed that the percentage of P-selectin in platelets without agonist stimulation was 10.6% in F3, 11.1% in F0 and 6.3% in C. After the addition of ADP/ adrenaline, the percentages were 44%, 25.3% and 42%, respectively. The PDGF-AB and TGF beta 1 contents per platelet were 11,016 ng/dl (F3), 3,172 ng/dl (F0) and 5.01 ng/dl (C) and 0,012 ng/dl (F3), 5.27 ng/dl (F0) and 4.66 ng/dl (C), respectively. Concerning the P-selectin, we can conclude that platelets from patients with schistosomiasis continued to be responsive to agonists, despite being pre-activated. There were no differences in TGF beta 1 between the groups, but the PDGF-AB content was significantly higher in F3. This suggests that PDGF-AB may have some participation in the development of fibrosis.
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Authors | Sheila Soares, Virmondes Rodrigues Júnior, David Teixeira Nascimento Silva, Helio Moraes-Souza |
Journal | Revista da Sociedade Brasileira de Medicina Tropical
(Rev Soc Bras Med Trop)
2007 May-Jun
Vol. 40
Issue 3
Pg. 321-5
ISSN: 0037-8682 [Print] Brazil |
Vernacular Title | Participação das plaquetas no processo de fibrose dos pacientes com esquistossomose mansônica. |
PMID | 17653469
(Publication Type: English Abstract, Journal Article)
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Chemical References |
- P-Selectin
- Platelet-Derived Growth Factor
- Transforming Growth Factor beta1
- platelet-derived growth factor AB
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Topics |
- Case-Control Studies
- Humans
- Liver Cirrhosis
(blood, parasitology, physiopathology)
- P-Selectin
(blood)
- Platelet Activation
(physiology)
- Platelet Count
- Platelet-Derived Growth Factor
(analysis)
- Schistosomiasis mansoni
(blood, complications, physiopathology)
- Transforming Growth Factor beta1
(blood)
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