ArticleJournal of clinical laboratory analysis2022
Hematological relevance of JAK2 V617F and calreticulin mutations in Tunisian patients with essential thrombocythemia.
Article in Journal of clinical laboratory analysis, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 3 citations in OpenAlex.
- Impact ofTurkish journal of haematology : official journal of Turkish Society of Haematology · 2024Article
- Hematological relevance of JAK2 V617F and calreticulin mutations in Tunisian patients with essential thrombocythemia.Journal of clinical laboratory analysis · 2022Article
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7 authors at 2 institutions in 1 country.
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Abstract
backgroundThe genetic investigation of essential thrombocythemia(ET) has highlighted the presence of driver mutations in ET. Janus kinase JAK2V617F and calreticulin(CALR) mutations are the most frequent driver mutations and have significantly improved the molecular diagnosis of ET. The impact of genetic heterogeneity on clinical features has not been fully elucidated. This is the first study which aimed to determine the frequency of JAK2V617F and CALR exon9 mutations in Tunisian ET patients and to establish the correlation between hematological characteristics and mutational status.
methodsThis study included Tunisian patients suspected with ET and was conducted between September 2017 and March 2021. Genomic DNA of patients was isolated from peripheral blood samples. JAK2V617F was detected by AS-PCR and CALR mutations were detected by PCR/direct sequencing. Clinical and hematological characteristics were also analyzed.
resultsTwo hundred and fifty ET patients were enrolled in this study. JAK2V617F mutation was found in 166/250 (66.4%) of patients, whereas CALR mutations were detected in 27/84 (32.1%) patients without JAK2V617F. Compared with JAK2V617F-positive patients, those with CALR mutations showed lower hemoglobin level and lower leucocytes count (p = 0.007 and p = 0.004,respectively). CALR type 2 was the most frequent mutation of CALR detected in 55.55% of CALR mutated. Six of seven patients with thrombotic events harbored JAK2V617F mutation.
conclusionThe prevalence of driver mutations JAK2V617F or CALR mutations was 77.2% in Tunisian ET patients. Moreover, patients with JAK2 V617F mutation had a higher risk of thrombosis. The mutational status is necessary to improve the diagnosis and contribute to the therapeutic decisions.
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