Caractéristiques clinico-biologiques des patients avec thrombocytémie essentielle en fonction de leur statut mutationnel JAK2 ou CALR : étude monocentrique de 40 patients et revue de la littérature

Background: Essential thrombocythemia (ET) is a clonal hemopoietic stem cell myeloproliferative neoplasm characterized by persistent thrombocytosis along with megakaryocytic hyperplasia. In the last decade following the identification of an acquired JAK2 V617F mutation, there has been acceleration in our understanding of this disease. The rational of this study was to determine the mutational profile of JAK2 V617F in Pakistan patients with ET. Materials and Methods: In this retrospective cross sectional study, 21 patients with ET were enrolled from January 2011 to December 2014. Patients were diagnosed based on WHO criteria for essential thrombocythemia. Complete blood count was done on an automated hematology analyzer, while JAK2 V617F expression was evaluated by polymerase chain reaction. Results: The mean age was 56.7±19.0 years (range 18-87) and the male to female ratio was 1:1.1. The frequency of JAK2 V617F positivity in our ET patients was found to be 61.9%. The mean hemoglobin was 11.7±2.4 g/dl with a total leukocyte count of 13.3±8.1x109/l and a platelet count of 1188±522x109/l. Positive correlations for JAK2 V617F mutation were established with high TLC count and raised LDH (P<0.05). No correlation of JAK2 V617F could be established with age and gender (P>0.05). Conclusions: JAK2 V617F mutation frequency in our ET patients was similar to those reported previously. Screening for the mutation in all suspected essential thrombocythemia cases could be beneficial in differentiating patients with reactive and clonal thrombocytosis.

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Acquired JAK-2 V617F Mutational Analysis in Pakistani Patients with Essential Thrombocythemia

Sultan

Irfan²

2015

Asian Pacific Journal of Cancer Prevention

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Caractéristiques clinico-biologiques des patients avec thrombocytémie essentielle en fonction de leur statut mutationnel JAK2 ou CALR : étude monocentrique de 40 patients et revue de la littérature

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Acquired JAK-2 V617F Mutational Analysis in Pakistani Patients with Essential Thrombocythemia

Acquired JAK-2 V617F Mutational Analysis in Pakistani Patients with Essential Thrombocythemia

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