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1.
Turk J Haematol ; 2024 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-38801066

RESUMO

Introduction: Primary immune thrombocytopenia (ITP) is an acquired disorder of platelets with complex and unclear mechanism of increased immune distruction or impaired production of platelets. While management of ITP is evolving, there is a need for guidance particularly in certain circumstances such as pregnancy, emergency and for patients requiring co-medications. We aimed to determine the tendencies of hematologists in Turkiye on such special conditions. Methods: As a modified Delphi method, Turkish National ITP Working Group founded under Turkish Society of Hematology developed a questionnaire consisting of statements regarding pregnancy, emergency and circumstances regarding co-treatment with antiaggregant or anticoagulants. 107 Hematologists working either in university or state hospitals voted for their agreement or disagreement of the statements for two consequential rounds. Results: Participant hematologists reached an agreement on the starting treatment in pregnant patients with platelets less than 30 x109/L and delivery of either normal or cesarian section to be safely performed above 50 x109/L. For emergency and rescue management of ITP, our panel have agreed against the use of high dose corticosteroids alone, preferred a combination with transfusion or IVIG. For patients who require interventions, platelet counts >50 x109/L were regarded as safe for low risk procedures as well as co-treatment with antiplatelets or anticoagulants. Conclusion: As National ITP study group, we have observed the need to increase the practice guidance in patients with primary ITP requiring additional treatments including invasive interventions, and co-treatments towards coagulation. Decisions on the management of ITP during pregnancy should be individualized. There is a certain lack of consensus on the thresholds of platelet counts as well as co-morbidities and co-medications. This lack of consensus may be due to the variations in the practices.

2.
Leuk Res ; 140: 107484, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38520796

RESUMO

INTRODUCTION: Thrombocytopenia is among the most common complications following hematopoietic stem cell transplantation and is associated with increased mortality and morbidity with no standard treatment yet. In this multicenter and retrospective study, we aim to present our multi-center experience of Eltrombopag treatment in patients with isolated thrombocytopenia following HSCT. MATERIAL-METHOD: A total of 73 patients from 5 centers who underwent autologous or allogeneic stem cell transplantation, had no primary disease relapse, all of whom had neutrophil engraftment, complete chimerism, and who were diagnosed with Prolonged Isolated Thrombocytopenia (PIT) or Secondary Failure Of Platelet Recovery (SFPR) were included in the study. The patients were initiated on Eltrombopag at a dose of 50-150 mg. Complete response was defined as a platelet count >50×109/L for 7 consecutive days with no transfusion support. RESULTS: A total of 50.3% of the patients underwent Autologous and 49.7% Allogeneic Stem Cell Transplantation, 54.8% were diagnosed with PIT, and 45.2% were diagnosed with SFPR, and the treatment with 50-150 mg/day Eltrombopag was initiated on the median day +42. Complete response was achieved in 71.2% of these patients on the median day 23 of the treatment. No significant effects of the initial dose (50-150 mg/day) were detected in the Complete Response in the multivariate analysis on response. An insufficient number of Megakaryocytes in the bone marrow before Eltrombopag treatment was determined as an independent risk factor in determining the response (OR 3.57, 95% CI 1.21-10.55). The overall survival of the patients who did not respond to Eltrombopag was found to be significantly worse than that of patients who responded (p=0.022, HR:2.74, 95% CI 1.12-6.54). CONCLUSION: As a result of the present study, Eltrombopag treatment was found to be effective and safe in thrombocytopenia that develops following hematopoietic stem cell transplantation. It was concluded that its use may be more effective in patients with sufficient bone marrow megakaryocytes before the treatment and an initial dose of 50 mg/day may be appropriate in terms of cost, effectiveness, and toxicity. Large-scale randomized and controlled prospective studies are needed to determine the roles of Eltrombopag treatment in patients with post-transplant PIT and SFPR.


Assuntos
Benzoatos , Transplante de Células-Tronco Hematopoéticas , Hidrazinas , Pirazóis , Trombocitopenia , Humanos , Hidrazinas/uso terapêutico , Hidrazinas/administração & dosagem , Hidrazinas/efeitos adversos , Benzoatos/uso terapêutico , Benzoatos/administração & dosagem , Benzoatos/efeitos adversos , Pirazóis/uso terapêutico , Pirazóis/efeitos adversos , Pirazóis/administração & dosagem , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Feminino , Masculino , Trombocitopenia/etiologia , Trombocitopenia/tratamento farmacológico , Adulto , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem , Adolescente , Idoso , Contagem de Plaquetas
3.
Turk J Haematol ; 41(2): 97-104, 2024 05 30.
Artigo em Inglês | MEDLINE | ID: mdl-38545671

RESUMO

Objective: Primary immune thrombocytopenia (pITP) is an acquired autoimmune disorder related to the increased destruction and/or impaired production of platelets. Its diagnosis and management are challenging and require expertise and the interpretation of international consensus reports and guidelines with national variations in availability. We aimed to assess the agreement of hematologists in Türkiye on certain aspects of both first-line and second-line management of patients with pITP. Materials and Methods: Applying a modified Delphi method, the Turkish National ITP Working Group (14 steering committee members), founded under the auspices of the Turkish Society of Hematology, developed a 21-item questionnaire consisting of statements regarding the first-line and second-line treatment of pITP. A total of 107 adult hematologists working in either university or state hospitals voted for their agreement or disagreement with the statements in two consecutive rounds. Results: The participants reached consensus on the use of corticosteroids as first-line treatment and with limited duration. Methylprednisolone was the corticosteroid of choice rather than dexamethasone. Use of intravenous immunoglobulin was not preferred for patients without bleeding. It was also agreed that thrombopoietin receptor antagonists (TPO-RAs) or rituximab should be recommended as second-line treatment and that splenectomy could be considered 12-24 months after diagnosis in patients with chronic pITP. Conclusion: The optimization of the dose and duration of TPO-RAs in addition to corticosteroids is necessary to improve the management of patients with pITP.


Assuntos
Consenso , Púrpura Trombocitopênica Idiopática , Humanos , Púrpura Trombocitopênica Idiopática/diagnóstico , Púrpura Trombocitopênica Idiopática/terapia , Púrpura Trombocitopênica Idiopática/tratamento farmacológico , Adulto , Técnica Delphi , Gerenciamento Clínico , Inquéritos e Questionários , Turquia/epidemiologia , Esplenectomia , Corticosteroides/uso terapêutico , Feminino , Guias de Prática Clínica como Assunto
4.
Mediterr J Hematol Infect Dis ; 16(1): e2024016, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38468829

RESUMO

Background: The aim of this study was to evaluate whether cyclophosphamide administered after allogeneic stem cell transplantation (ASCT) from 9/10 HLA-Matched Unrelated Donors (MMUD) increases the rates of bacterial, fungal, viral infections, complications (hemorrhagic cystitis (HC)), and infection-related mortality compared to allogeneic stem cell transplantation from matched related donors (MRD). Methods: This is a retrospective multicenter study. 45 MMUD ASCT patients who received posttransplant cyclophosphamide+methotrexate+calcineurin inhibitor compared with 45 MRD ASCT patients who received methotrexate+calcineurin inhibitor. Results: Although there was a statistically significant prolongation of neutrophil engraftment time in the PTCy arm, there was no statistically significant difference in bacterial infection frequencies between the groups (PTCy; 9 (20%), control; 8 (17.8%), p=0.778). The distribution of CMV infection in the first 100 days was similar (p=0.827), but the distribution of CMV infection rate between the 100th and 365th days was observed more frequently in the control group (p=0.005). HC rates and their grades were similar in both groups (PTCy; 4 (8.8%), control; 6 (13.3%) p=0.502). The rates of VZV infection and invasive aspergillosis were similar in the PTCy and control groups (13.3% in the PTCy and 17.8% in the control group p=0.561). There is also no statistically significant difference in survival analysis (OS, LFS, GRFS, RI, IRM, NRM) between groups. However, the incidence of cGVHD was significantly higher in the control group (P=0.035). Conclusions: The addition of PTCy to standard GvHD prophylaxis in MMUD ASCT does not lead to an increase in CMV reactivation, bacterial infections, invasive fungal infection, viral hemorrhagic cystitis, or mortality.

5.
Asian Pac J Cancer Prev ; 24(6): 1971-1977, 2023 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-37378926

RESUMO

BACKGROUND: Patients with chronic lymphocytic leukemia (CLL) have an increased risk of developing second primary cancers (SPC). The aim of this study is to determine the frequency of SPC in CLL patients and determine the relationship between these cancers and their treatment status, cytogenetic factors, and other risk factors. METHODS: The study was designed as multicenter and retroprospective. The sample comprised 553 subjects with a CLL diagnosis. Data collection commenced in August 2016, and completed at May 2021. RESULTS: Fifty one of 553 patients followed for CLL, had a history of SPC. SPC development rate was 9.2%. Epithelial tumors were mostly observed. According to the incidence skin, lymphoma, renal, breast, lung, gastrointestinal system, thyroid, malignant melanoma, prostate, Kaposi's sarcoma, neuroendocrine tumor, ovarian, larynx and salivary gland cancers were detected respectively. The 13q deletion was the most common genetic abnormality in those who developed SPC, and the frequency of 13q deletion was found to be increased statistically significant in those with malignancy, compared to those who did not. CONCLUSION: In CLL patients with SPC, the age of diagnosis, 13q and CD38 positivity, and treatment rates with fludarabine and monoclonal antibodies were found to be higher. Also, we determined that SPC frequency increased independently from hemogram values (except hemoglobin values), ß2 microglobulin level on admission, number of treatment lines, and genetic mutations other than 13q, in CLL patients. In addition, the mortality rate was higher in CLL patients with SPC and they were prone to be in advanced stages at the time of diagnosis.


Assuntos
Transtornos Cromossômicos , Leucemia Linfocítica Crônica de Células B , Segunda Neoplasia Primária , Neoplasias Cutâneas , Masculino , Humanos , Leucemia Linfocítica Crônica de Células B/genética , Segunda Neoplasia Primária/etiologia , Segunda Neoplasia Primária/genética , Neoplasias Cutâneas/genética , Transtornos Cromossômicos/genética , Deleção Cromossômica
6.
J Cancer Res Ther ; 19(Supplement): S138-S144, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37147993

RESUMO

Introduction and Aim: Primary mediastinal B-cell lymphomas (PMBL) are aggressive B- cell lymphomas. Although the initial treatment models vary in PMBL, appropriate treatment methods are not known. We aim to show real-life data on health outcomes in adult patients with PMBL who received various type of chemoimmunotherapies in Turkey. Method: We analyzed the data of 61 patients who received treatments for PMBL from 2010 to 2020. The overall response rate (ORR), overall survival (OS) and progression-free survival (PFS) of the patients were evaluated. Results: 61 patients were observed in this study. The mean age of the study group was 38.4 ± 13.5 years. From among them, 49.2% of the patients were female (n = 30). For first-line therapy, 33 of them had received rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) regimen (54%). Twenty-five patients had received rituximab, etoposide, prednisone, vincristine, cyclophosphamide and doxorubicin (DA-EPOCH-R) regimen. The ORR was 77%. The median OS and PFS were as follows: 25 months (95% CI: 20.4-29.4) and 13 months (95% CI: 8.6-17.3), respectively. The OS and PFS at 12 months were 91.3% and 50%, respectively. The OS and PFS at five years were 64.9% and 36.7%, respectively. Median follow-up time period was 20 months (IQR 8.5-38.5). Conclusion: R-CHOP and DA-EPOCH-R showed good results in PMBL. These remain one of the best determined systemic treatment options for first-line therapy. Also, the treatment was associated with good efficacy and tolerability.


Assuntos
Linfoma Difuso de Grandes Células B , Adulto , Humanos , Feminino , Adulto Jovem , Pessoa de Meia-Idade , Masculino , Rituximab , Linfoma Difuso de Grandes Células B/tratamento farmacológico , Estudos Retrospectivos , Prednisona/uso terapêutico , Vincristina , Turquia/epidemiologia , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Etoposídeo , Ciclofosfamida/uso terapêutico , Doxorrubicina/uso terapêutico
7.
Medeni Med J ; 38(1): 63-69, 2023 Mar 28.
Artigo em Inglês | MEDLINE | ID: mdl-36974573

RESUMO

Objective: Standard-dose methyl-prednisolone (methyl-Pd) is generally preferred as the first-line treatment in immune thrombocytopenia (ITP) unless there is an urgent indication to increase the platelet value. A significant proportion of patients (around 40%) does not benefit from this treatment. This study investigated whether pretreatment platelet level and other hemogram indices in patients with ITP patients can be used to predict early response to standard-dose methyl-Pd treatment. Methods: Patients who received first-line standard-dose methyl- Pd therapy with the diagnosis of primary ITP were included. Patients were categorized as complete responder (CR), responder (R), and non-responder (NR) according to the response status obtained within the first 14 days of treatment. The hemogram indices of the CR, R, and NR groups measured at the start of the treatment were compared retrospectively. Results: One hundred forty four patients with ITP were included in the study. The number of patients with NR, R, and CR were 47 (33%), 40 (28%), and 57 (39%), respectively. The mean platelet level of the NR group was lower than responders (R and CR groups) (p=0.002 and p=0.049, respectively). The mean platelet volume (MPV) levels of the NR group were statistically lower than that of the CR group (p=0.018). If MPV ≥10 fL and platelet >12,000/mm³, the probability of an early response with methyl-Pd is higher [sensitivity =98.1% (95% confidence interval (CI) =89.7-99.9%), specificity =45% (95% CI =23.1-68.5%), positive predictive value =82.3% (95% CI =75.7-87.4%), negative predictive value =90% (95% CI =54.9-98.5%)]. Conclusions: Patients with ITP with low platelet and MPV levels were less responsive to standard-dose methyl-Pd treatment. It may be more appropriate to apply more effective treatments to these patients other than standard-dose methyl-Pd alone.

8.
Leuk Res ; 128: 107055, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36893697

RESUMO

Maintenance therapy in APL is still a standard especially in high-risk patients treated with chemotherapy+ATRA combination whereas the role of the maintenance therapy in low-risk patients is controversial. This study aims to compare the efficacy and toxicity of ATRA monotherapy and ATRA+MTX+ 6-MP combination as the maintenance treatment for 2 years in APL patients who achieved molecular complete response after induction and consolidation with ATRA+chemotherapy. A total of 71 patients from 4 different centers were included in this study. After a median follow-up of 54 months (5-180 months), the 5-year RFS was 89 % in the ATRA monotherapy arm, the 5-year RFS was 78.5 % in the combined treatment arm (p = 0.643, HR:1.3, 95 % CI: 0.35-5.3). Hematological toxicity in all grades and Grade III/IV hematological toxicity was observed significantly more in the combined treatment arm than in the ATRA monotherapy arm (All grades: 76.9 % vs 18.9 %, p < 0.001; Grade III/IV: 20.5 % vs. 3.1 %, p = 0.035). Hepatotoxicity at all levels was significantly higher in the combined treatment arm than in the ATRA monotherapy arm (61.5 % vs 25 %, p = 0.002). Our study concluded that two years of ATRA monotherapy and combined maintenance therapy, both of which were found to be similar in terms of disease control and long term survival, ATRA Monotherapy could be a safer maintenance treatment option since both hematological and non-hematological toxicities were observed less often in the ATRA monotherapy arm.


Assuntos
Leucemia Promielocítica Aguda , Humanos , Leucemia Promielocítica Aguda/tratamento farmacológico , Tretinoína , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Terapia Combinada , Resultado do Tratamento
9.
Transfus Med Hemother ; 50(1): 18-25, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36818771

RESUMO

Introduction: Thrombotic thrombocytopenic purpura (TTP) is a thrombotic microangiopathy caused by accumulation of ultra-large von Willebrand factor (vWF) due to the significantly reduced activity ADAMTS13. Limited studies have been published examining the blood group as an epidemiological factor that can contribute to development of TTP. It has been suggested that due to low vWF levels, the distribution of the "O" blood group among TTP patients may be lower than anticipated compared to the blood group distribution rates in the normal population. The aim of this study was to explore the relationship between blood groups and the clinical outcome of immune TTP (iTTP). Methods: Thirty patients with iTTP with severe ADAMTS13 deficiency were enrolled. Data collection commenced in January 2011 and was completed by June 2020. It was analyzed whether there was a difference between the blood groups in terms of frequency of iTTP, response to treatment, frequency of relapse, and clinical and laboratory results. Results and Conclusions: The distribution of group "A" among patients with iTTP was higher than expected. Although not statistically significant, patients with blood group "O" required more TPE for the treatment and relapse rate was statistically higher than other blood groups. Mortality rate in all patients was 6.7%. Although blood group "A" is a risk factor for iTTP, the frequency of relapse is higher in the blood group "O."

10.
Transfus Apher Sci ; 60(5): 103200, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34215520

RESUMO

Psoriasis is a chronic inflammatory skin disease that is characterized by well-demarcated erythematous plaques with a silver scale. Although many new and emerging therapeutic agents are often sufficient to control the disease, there is still a need for alternative treatment options in challenging cases. Extracorporeal photopheresis (ECP) has been applied to many T-cell-mediated diseases to restore immune homeostasis and treat psoriasis effectively. In this paper, we present a psoriasis patient who did not respond to methotrexate, narrowband ultraviolet B, or acitretin. Because of a diagnosis of non-Hodgkin lymphoma, the patient had contraindications for cyclosporine, fumaric acid esters, and biologics but achieved remission with a total of 12 sessions of ECP in two and a half months. Although exacerbation was recorded after polymerase chain reaction (PCR) confirmed coronavirus 2019 (COVID-19) disease infection at the end of the first month, scores from the psoriasis area severity index (PASI) and dermatological life quality index (DLQI) were regressed significantly within two and a half months. ECP seems to provide an effective and rapid response for psoriasis and should be considered for psoriasis patients who fail to respond or have contraindications to existing treatments.


Assuntos
COVID-19/complicações , Linfoma não Hodgkin/complicações , Pandemias , Fotoferese , Psoríase/tratamento farmacológico , SARS-CoV-2 , Acitretina/uso terapêutico , Doença Hepática Induzida por Substâncias e Drogas/etiologia , Terapia Combinada , Contraindicações de Medicamentos , Ciclosporina/efeitos adversos , Humanos , Masculino , Metotrexato/efeitos adversos , Metotrexato/uso terapêutico , Pessoa de Meia-Idade , Unhas/patologia , Psoríase/complicações , Psoríase/patologia , Psoríase/radioterapia , Qualidade de Vida , Índice de Gravidade de Doença , Terapia Ultravioleta
11.
Hematol Oncol ; 39(4): 498-505, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34171130

RESUMO

The AETHERA trial reported an increased progression-free survival (PFS) when brentuximab vedotin (BV) was used as maintenance therapy in high-risk Hodgkin lymphoma (HL) after autologous stem cell transplantation (ASCT). Thus, we aimed to determine the impact and safety of BV as maintenance after ASCT in real-world patients. Seventy-five patients with relapsed/refractory HL started on BV consolidation therapy after ASCT due to high risk of relapse, between January 2016 and July 2019, from 25 institutions, were included in the study. The median follow-up time was 26 months. The most common high-risk features were primary refractory or relapsed disease <12 months (n = 61), lack of complete response (CR) to the last salvage regimen (n = 51), and having had at least two salvage regimens (n = 29). At the time of analysis, 42 patients completed consolidation courses, and BV was discontinued in 33 patients. Fifty patients had an ongoing response (CR in 41, PR in 6, and SD in 3 patients), 25 had progressed. Ten died in the follow-up, eight with progressive disease and two due to infection while in CR. The 2-year PFS and OS rates were 67.75% (95% confidence interval [CI]: 0.55-0.77) and 87.61% (95% CI: 0.76-0.94), respectively. Seventeen patients (23%) received BV in the pre-ASCT treatment lines, and there was no survival difference between the BV-naïve and BV-exposed groups. The most common adverse events were neutropenia (27%) and peripheral neuropathy (21%). Sixteen patients (21.3%) experienced grade 3 or 4 toxicity. BV was discontinued due to adverse event in 12 patients. Consolidation with BV after ASCT can achieve a 2-year PFS of 67.75% (95% CI: 0.55-0.75) with an acceptable toxicity profile.


Assuntos
Brentuximab Vedotin/uso terapêutico , Transplante de Células-Tronco Hematopoéticas/métodos , Doença de Hodgkin/tratamento farmacológico , Condicionamento Pré-Transplante/métodos , Adolescente , Adulto , Idoso , Brentuximab Vedotin/farmacologia , Humanos , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
12.
Indian J Hematol Blood Transfus ; 37(1): 82-89, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33707839

RESUMO

There are different drug combinations and conditioning regimens in lymphoma transplants. However, no randomized data is available to demonstrate the superiority of any regimen and the optimal choice is unknown. In this analysis, we compared the efficacy, toxicity and the survival outcomes of the BEAM and the high dose ICE (hdICE) conditioning regimens in relapsed NHL and relapsed/refractory Hodgkin Lymphoma patients undergoing auto-SCT. 83 patients with relapsed/refractory HL or relapsed NHL who were treated with Auto-SCT between 2006 and 2016, were analyzed retrospectively. 52 patients (62.7%) received BEAM, while 31 patients (37.3%) received hdICE. Between two groups there is no significant difference in age, gender, diagnosis, disease stage, chemosensitivity, ECOG performance status, time from diagnosis to transplant, salvage regimens and previous lines of chemotherapy. After a median of 59-month follow-up, PFS and OS rates of both groups were similar (5-year PFS was 51.6% in BEAM group, 48.8% in hdICE group, p = 0.71; 5-year OS was 58% in BEAM group, 54.8% in hdICE group, p = 0.93). The median neutrophil (11 vs. 10 days, p = 0.06) and platelet engraftment (13 vs. 11 days, p = 0.01) was faster and demand of transfusions were lesser in hdICE group (p = 0.03). However, severe renal toxicity was significantly higher in hdICE group in our study (p = 0.01). hdICE conditioning regimen may be used as an alternative to BEAM, with similar survival outcomes and toxicity profile, especially transplant centers that experience some difficulties in the availability of the carmustine.

13.
Indian J Hematol Blood Transfus ; 36(1): 78-83, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-32158088

RESUMO

Low-grade Nonhodgkin lymphoma (LG-NHL) is characterized by indolent clinical course, which consist of marginal zone lymphoma (MZL), follicular lymphoma (FL), chronic lymphocytic leukemia/small lymphocytic lymphoma, lymphoplasmacytic lymphoma, waldenstrom macroglobulinemia (WM) as the most common subtypes. Factors affecting prognosis and treatment need in these patients have long been the subject of research. A retrospective study was conducted with patients diagnosed with LG-NHL in Hematology Departments of two centres between 2010 and 2018. At the time of diagnosis, demographic and disease characteristics, hematological and biochemical parameters were examined. Using these data, treatment requirements, response and survival rates were calculated. The effect of parameters on survival and need to treatment were analyzed. 93 LG-NHL patients were included in this study. 40 (43%) of these patients were MZL, 28 (30.1%) were FL and 25 (26.8%) were others. In comparison of patients required treatment with patients without treatment, there was significant difference among the number of comorbidity, platelet count, neutrophil count, disease subgroups and ferritin levels. Logistic regression analysis revealed that disease subgroup (other than MZL and FL) and ferritin levels were independent risk factors for need to treatment. Only ferritin level was found to be associated with overall survival. The current study demonstrated an association between serum ferritin levels and prognosis in patients with LG-NHL. Given that it is easily available and low-cost, the initial ferritin level can be used as a prognostic marker for patients with indolent lymphoma.

14.
Turk J Haematol ; 34(2): 137-142, 2017 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-27466938

RESUMO

OBJECTIVE: Tyrosine kinase inhibitors may have deleterious effects on spermatogenesis or folliculogenesis, resulting in male or female subfertility. The aim of this study is to determine the effect of nilotinib, which is used routinely to treat chronic myeloid leukemia, on spermatogenesis and folliculogenesis by using histopathological parameters. MATERIALS AND METHODS: Ten male and ten female mice were orally treated with nilotinib at 20 mg/kg body weight dissolved in drinking water daily for 2 months. RESULTS: When compared with the control group, a statistically significant decrease was demonstrated in the total follicle numbers of the female mice in the nilotinib group (268±110 vs. 170±60; p=0.03). Active spermatogenesis was observed in each tubule sample taken from the mice in the control and nilotinib groups. Spermatogenic activity was similar in the two groups. CONCLUSION: We have demonstrated that even though spermatogenesis is preserved, folliculogenesis is inhibited by the usage of a continuous nilotinib treatment dose in chronic myeloid leukemia.


Assuntos
Leucemia Mielogênica Crônica BCR-ABL Positiva , Neoplasias Experimentais , Folículo Ovariano , Pirimidinas/efeitos adversos , Espermatogênese/efeitos dos fármacos , Animais , Feminino , Leucemia Mielogênica Crônica BCR-ABL Positiva/tratamento farmacológico , Leucemia Mielogênica Crônica BCR-ABL Positiva/metabolismo , Leucemia Mielogênica Crônica BCR-ABL Positiva/patologia , Masculino , Camundongos , Neoplasias Experimentais/tratamento farmacológico , Neoplasias Experimentais/metabolismo , Neoplasias Experimentais/patologia , Folículo Ovariano/metabolismo , Folículo Ovariano/patologia , Pirimidinas/farmacologia
15.
BMJ Case Rep ; 20162016 Jan 12.
Artigo em Inglês | MEDLINE | ID: mdl-26759444

RESUMO

Chronic myeloid leucaemia (CML) is a chronic myeloproliferative disorder characterised by a reciprocal translocation between the chromosomes 9 and 22 resulting in constitutionally active tyrosine kinase signalling. BCR-ABL tyrosine kinase inhibitors (TKIs) are highly effective molecules in the treatment of CML. Unfortunately, these novel therapeutic agents are accompanied by various side effects, and haematological, cutaneous and metabolic abnormalities are among the most prevalent. Nilotinib, a second-generation TKI, has been shown to cause both--cutaneous lesions and lipid profile abnormalities. We present two CML cases developing xanthelasma palpebrarum while receiving nilotinib. Case 1 also acquired a lipid abnormality following the start of nilotinib therapy, while case 2 meanwhile stayed normolipidemic. In addition to a low cholesterol diet, atorvastatin was prescribed to case 1. Currently, both cases are normolipidemic and continuing their nilotinib therapy. Xanthelasma palpebrarum secondary to nilotinib therapy is new to the literature.


Assuntos
Doenças Palpebrais/induzido quimicamente , Leucemia Mielogênica Crônica BCR-ABL Positiva/tratamento farmacológico , Inibidores de Proteínas Quinases/efeitos adversos , Pirimidinas/efeitos adversos , Xantomatose/induzido quimicamente , Adulto , Feminino , Humanos , Proteínas Tirosina Quinases/antagonistas & inibidores
16.
Clin Lab ; 62(7): 1287-1293, 2016 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-28164634

RESUMO

BACKGROUND: In this study, we aimed to determine a cutoff level for CD38 that would aid us in identifying chronic lymphocytic leukemia patients in need of early therapy and predicting patients at sufficiently low risk who would likely exhibit a rapid improvement; we also aimed to find out if CD38 expression would show variability during disease course and determine the extent of CD38 expression. METHODS: 124 patients were diagnosed with CLL. CD38 and ZAP-70 expression levels were measured with four color flowcytometry. Time from diagnosis to initial therapy was calculated for all patients. CD38 expression was studied for a second time during follow-up in 50 patients. RESULTS: For cutoff levels of 7%, 20%, and 30%, CD38 expressions were 61.3%, 25%, and 24.2%, respectively. At all three cutoff levels there were significant correlations with all parameters except age between CD38+ vs. CD38- groups (p < 0.001). The comparative rates of starting therapy for cutoff levels of 7%, 20%, and 30% in CD38+ and CD38- groups were 77.5% vs. 6.25%; 100% vs. 30.7%, and 100% vs. 31.5%, respectively (p < 0.001). Multiple Cox Proportional Hazards Regression analysis: for a cutoff level of 7%, survival was affected by STAGE, ZAP70, and CD38. CONCLUSIONS: A CD38 cutoff level of 7% determined by standardized laboratory techniques is an important prognostic marker. However, the number and frequency of repeat measurements of CD38 expression, and cutoff level of CD38 expression that significantly predict disease prognosis should be further determined by future cohort studies.


Assuntos
ADP-Ribosil Ciclase 1/sangue , Leucemia Linfocítica Crônica de Células B/diagnóstico , Glicoproteínas de Membrana/sangue , Proteína-Tirosina Quinase ZAP-70/sangue , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Citometria de Fluxo , Humanos , Leucemia Linfocítica Crônica de Células B/sangue , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Leucemia Linfocítica Crônica de Células B/mortalidade , Masculino , Pessoa de Meia-Idade , Prognóstico , Valores de Referência , Análise de Regressão , Estudos Retrospectivos , Análise de Sobrevida , Tempo para o Tratamento
17.
Turk J Haematol ; 32(2): 180-3, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26316489

RESUMO

A 67-year-old male patient who was diagnosed with primary myelofibrosis 4 years ago did not respond to conventional therapies. The splenomegaly progressively increased, which caused spleen infarctions and led to the decision to perform a splenectomy procedure. After splenectomy, the patient started treatment with ruxolitinib. In the first month of ruxolitinib treatment, the patient became transfusion-free and all constitutional symptoms disappeared. However, in the sixth month of ruxolitinib treatment, the disease transformed to acute myeloblastic leukemia, and the patient died 1 month later. This is the first case report that shows the effects of ruxolitinib in a splenectomized patient.


Assuntos
Mielofibrose Primária/tratamento farmacológico , Inibidores de Proteínas Quinases/uso terapêutico , Pirazóis/uso terapêutico , Idoso , Aspergilose/etiologia , Transfusão de Sangue , Danazol/uso terapêutico , Progressão da Doença , Resistência a Medicamentos , Evolução Fatal , Humanos , Hidroxiureia/efeitos adversos , Hidroxiureia/uso terapêutico , Janus Quinase 2/antagonistas & inibidores , Lenalidomida , Leucemia Mieloide Aguda/tratamento farmacológico , Masculino , Nitrilas , Mielofibrose Primária/complicações , Mielofibrose Primária/enzimologia , Mielofibrose Primária/cirurgia , Pirimidinas , Esplenectomia , Infarto do Baço/etiologia , Infarto do Baço/cirurgia , Talidomida/análogos & derivados , Talidomida/uso terapêutico
18.
Case Rep Nephrol ; 2015: 635974, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26090243

RESUMO

Nonsecretory multiple myeloma (NSMM) is the absence of a detectable monoclonal protein in serum and urine of a multiple myeloma (MM) patient and immunoglobulin light chain (AL) amyloidosis is a significantly rare complication. A case of NSMM with AL amyloidosis and nephrotic range proteinuria is presented. Sharing clinical, therapeutic, and prognostic characteristics with MM, real challenge may be during initial diagnosis of NSMM and assessment of treatment response. In elderly patients with unexplained renal dysfunction, MM should be in the differential diagnosis and the absence of a monoclonal protein should not rule out MM but should remind us of the possibility of NSMM.

19.
Acupunct Med ; 32(2): 194-6, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24389811

RESUMO

Multiple myeloma (MM) is characterised by an increase in plasma cells, particularly in the bone marrow but also in other organs and systems, and with the abnormal production of immunoglobulin. Bortezomib, a current treatment option, inhibits angiogenesis by proteasome inhibition and is known to be effective in the treatment of MM. Peripheral neuropathy (PN) is a common dose-related side effect of bortezomib in patients with MM. We describe a case of PN due to bortezomib treatment which responded dramatically to acupuncture treatment, enabling his bortezomib treatment to continue. The patient was a 74-year-old man with pain, numbness, tingling and weakness in his hands and feet after 22 days of bortezomib treatment given by the haematology clinic. His neuropathic pain score was 8/10. There were no autonomic symptoms. Electroneurophysiological testing confirmed sensorimotor PN. Acupuncture treatment was planned as his neuropathic pain continued. Acupuncture was administered bilaterally to ST36, SP6 and LI4 15 times (every other day in the first five sessions and then twice a week). The numbness, tingling and pain symptoms substantially decreased after the first two treatments. After the 15th session acupuncture treatment was continued once a month. At the end of the sixth month the neuropathic pain assessment score was 0/10. There was no side effect of acupuncture treatment. Acupuncture seems promising as a complementary medical treatment for neuropathic pain from bortezomib-induced PN. Clinical studies involving more cases and electrophysiological studies are necessary to investigate the effectiveness of acupuncture.


Assuntos
Terapia por Acupuntura , Ácidos Borônicos/efeitos adversos , Mieloma Múltiplo/tratamento farmacológico , Neuralgia/terapia , Pirazinas/efeitos adversos , Idoso , Ácidos Borônicos/uso terapêutico , Bortezomib , Humanos , Masculino , Neuralgia/induzido quimicamente , Pirazinas/uso terapêutico
20.
Kardiol Pol ; 71(8): 832-8, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24049023

RESUMO

BACKGROUND: Platelet activation and aggregation play key roles both in the pathogenesis of atherosclerosis and in the developmentof acute thrombotic events. Platelet volume is a marker of platelet activation and function, and is measured usingmean platelet volume (MPV). AIM: To determine the relationship between MPV and angiographic Gensini and SYNTAX scores, which give information about the severity and complexity of coronary artery disease (CAD). METHODS: This study included 435 consecutive patients undergoing elective coronary angiography. The complete blood countand biochemical examination of blood were obtained after 12 h of fasting. The independent association between MPV andthe severity of CAD was statistically evaluated using PASW Statistics 18 for Windows. RESULTS: Mean age of the study population was 58.4 ± 9.3 years, of whom 196 were female (45.1%) and 239 male (54.9%). Of the patients, 63.2% had CAD, 31.7% had diabetes mellitus, 61.8% had hypertension, 56.6% had hyperlipidaemia, and 38.6% were smokers. Mean Gensini score was 20.7 ± 31.1. According to Gensini scores, 160 of the patients (36.8%) hadnormal coronary arteries (Gensini score: 0), 134 of the patients (30.8%) had minimal CAD (Gensini score: 1-19), and 141 ofthem (32.4%) had severe CAD (Gensini score ≥ 20). Mean MPV values were 8.4 ± 1.0 fL in the group that had no CAD,8.7 ± 1.0 fL in the group with minimal CAD, and 9.3 ± 1.5 fL in the group with severe CAD. According to Spearman correlationanalysis, the positive relationship found between MPV and Gensini score was statistically significant (p < 0.001,r = 0.290). Likewise, SYNTAX score was also associated with MPV (p < 0.001, r = 0.504). CONCLUSIONS: We determined a positive correlation between MPV and Gensini and SYNTAX scores. Therefore, this simple haematology test can be used in determining cardiovascular disease burden besides other risk factors during routine clinical practice. For further information about this topic, large-scale studies are needed.


Assuntos
Doença da Artéria Coronariana/sangue , Doença da Artéria Coronariana/diagnóstico , Volume Plaquetário Médio , Comorbidade , Angiografia Coronária , Doença da Artéria Coronariana/epidemiologia , Diabetes Mellitus/epidemiologia , Feminino , Humanos , Hiperlipidemias/epidemiologia , Hipertensão/epidemiologia , Masculino , Pessoa de Meia-Idade , Índice de Gravidade de Doença
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