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1.
Eur J Med Res ; 28(1): 558, 2023 Dec 04.
Artigo em Inglês | MEDLINE | ID: mdl-38049886

RESUMO

INTRODUCTION: Understanding the mechanisms and identifying effective treatments for the COVID-19 outbreak are imperative. Therefore, this study aimed to assess the antioxidant status and oxidative stress parameters as potential pivotal mechanisms in asymptomatic, non-severe, and severe COVID-19 patients. METHODS: This study is a case-control study that was performed on patients referred to the Persian Gulf Martyrs Hospital of Bushehr University of Medical Sciences, Bushehr, Iran, from May 2021 to September 2021. A total of 600 COVID-19 patients (non-severe and severe group) and 150 healthy volunteers of the same age and sex were selected during the same period. On the first day of hospitalization, 10 ml of venous blood was taken from subjects. Then, hematological, biochemical, serological, antioxidant and oxidative stress parameters were determined. RESULTS: Our results indicated that ESR, CRP, AST, ALT, and LDH significantly augmented in the severe group as compared to the non-severe and normal groups (P ≤ 0.05). It was observed that the levels of FRAP, G6PD activity, and SOD activity significantly reduced in the non-severe patients in comparison with the severe and normal groups (P ≤ 0.05). We found that MDA content and NO metabolite markedly increased in severe patients as compared to the non-severe group. CONCLUSIONS: Taken together, it seems that the balance between antioxidants and oxidants was disturbed in COVID-19 patients in favor of oxidant markers. In addition, this situation caused more aggravation in severe patients as compared to the non-severe group.


Assuntos
Antioxidantes , COVID-19 , Humanos , Antioxidantes/farmacologia , Estudos de Casos e Controles , Estresse Oxidativo , Resultado do Tratamento
2.
Iran J Basic Med Sci ; 26(12): 1468-1474, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37970435

RESUMO

Objectives: Exhausted CD8+ T-cells over-express immune checkpoint receptors (ICRs), which interact with their ligands on malignant cells. However, some ICRs have been reported to be expressed on both T-cells and tumor cells, including V-domain immunoglobulin suppressor of T cell activation (VISTA), Galectin-9, and T-cell immunoglobulin mucin-3 (TIM-3). We aimed to evaluate the mRNA expression of VISTA, Galectin-9, and TIM-3 on CD8+ T-cells and leukemic cells in B-cell acute lymphoblastic leukemia (B-ALL). Materials and Methods: Samples were obtained from 26 untreated B-ALL patients and 25 control subjects. CD8+ T-cells were isolated using Magnetic Activated Cell Sorting (MACS). Relative gene expression was then evaluated by qRT-PCR with specific primers for VISTA, Galectin-9, and TIM-3. Also, the mRNA expression profile and clinical data of 154 B-ALL patients were obtained from the TARGET. Results: mRNA expression of Galectin-9 on CD8+ T-cells in B-ALL patients was significantly lower than those in the control group (P=0.043), while VISTA expression was not significantly different between the two study groups (P=0.259). Besides, TIM-3 expression was significantly higher in B-ALL patients than in the control group (P<0.001). Also, data obtained from TARGET showed that the relapse incidence was not significantly different between patients with high and low expression of Galectin-9 and TIM-3 in leukemic cells (P=0.360 and P=0.655, respectively). Conclusion: Collectively, gene expression results suggest an important role for TIM-3, but not VISTA and Galectin-9, in B-ALL and it seems that TIM-3 could be a candidate for immune checkpoint therapy.

3.
Iran J Immunol ; 20(4): 438-445, 2023 12 31.
Artigo em Inglês | MEDLINE | ID: mdl-37961948

RESUMO

Background: Thymocyte selection-associated high mobility group box protein (TOX) and members of the nuclear receptor 4A (NR4A) are known as transcription factors involved in T cell exhaustion. Objective: To evaluate the mRNA expression of TOX and NR4A1-3 in CD8+ T cells in acute leukemia. Methods: Blood samples were obtained from 21 ALL and 6 AML patients as well as 20 control subjects. CD8+ T cells were isolated using MACS. Relative gene expression of TOX and NR4A1-3 was then evaluated using qRT-PCR. Results: Comparison of mRNA expression of TOX in CD8+ T cells showed no significant difference among the study groups (p>0.05), while the expression of NR4A1 was significantly lower in AML patients than in the control group (p=0.0006). Also, the expression of NR4A2 and NR4A3 was significantly lower in both ALL (p=0.0049 and p=0.0005, respectively) and AML (p=0.0019 and p=0.0055, respectively) patients. Conclusion: NR4As expressions were found to be lower in CD8+ T cells from patients with AML and ALL compared to controls, whereas the mRNA expression of TOX showed no significant difference. Although TOX and NR4As are associated with CD8+ T cell exhaustion in solid tumors, they might play different roles in acute leukemia, which requires further investigation.


Assuntos
Linfócitos T CD8-Positivos , Leucemia Mieloide Aguda , Humanos , Leucemia Mieloide Aguda/genética , Leucemia Mieloide Aguda/metabolismo , RNA Mensageiro/genética , RNA Mensageiro/metabolismo
4.
Iran Biomed J ; 27(4): 214-8, 2023 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-37634081

RESUMO

Background: This study investigated the role of the immune-checkpoint receptor (ICR), CD244, and its adapter molecules, in CD8+ T cells in acute leukemia. Methods: Blood samples were obtained from 21 acute lymphoblastic leukemia (ALL) and 6 acute myeloid leukemia (AML) patients and 20 control subjects. Relative gene expression of CD244, immune receptor tyrosine-based switch motif-associated protein (SA), EWS/FLI1-activated transcript 2 (EAT-2), and LncRNA-GSTT1-AS1 were evaluated using quantitative reverse transcription polymerase chain reaction. Results: Expression of CD244, SAP, and EAT-2 were significantly lower in CD8+ T cells from ALL patients than those from control subjects. Interestingly, the expression of SAP was much lower than that of CD244, indicating a lower ratio of SAP to CD244. Also, SAP expression was significantly lower in AML patients compared to the control group. Expression of LncRNA-GSTT1-AS1 showed no significant difference in ALL and AML patients compared to control subjects. Conclusion: The low SAP/CD244 expression ratio in CD8+ T cells in ALL suggests an inhibitory role for CD244 in ALL.


Assuntos
Leucemia Mieloide Aguda , RNA Longo não Codificante , Humanos , Leucemia Mieloide Aguda/genética , Linfócitos T CD8-Positivos , RNA Mensageiro/genética , Família de Moléculas de Sinalização da Ativação Linfocitária
5.
Open Med (Wars) ; 18(1): 20230733, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37465348

RESUMO

Iron-overload-associated cardiomyopathy has been one of the primary causes of mortality in thalassemia patients with iron burden. There is growing evidence citing the beneficial effects of ebselen as an antioxidant selectively blocking the divalent metal transporter 1 (DMT-1) to deter iron ingress into cardiomyocytes, raising internets in viewing this component in this population in order to treat and even prevent cardiomyopathy occurring from iron surplus. In this article, we reviewed the potential advantageous effects of ebselen in thalassemia patients who suffer from iron excess, susceptible to cardiomyopathy induced by iron overload. A systematic search in several databases, including PubMed, Scopus, and Web of Science, was conducted to explore the role of ebselen in controlling iron-overload-related cardiomyopathy in thalassemia patients by the keywords of Ebselen AND iron. The inclusion criteria were English-written preclinical and clinical studies investigating the efficacy and side effects of ebselen in an iron-overload context. After searching the databases, 44 articles were found. Next, of 19 published articles, 3 were included in this article. After reviewing the references of the included studies, no articles were added. In conclusion ebselen can be a promising adjuvant therapy in patients with thalassemia alongside the standard treatment with iron chelators, particularly in severe cases with cardiomyopathy, due to falling iron inflow by inhibiting DMT-1 and increasing ferroportin-1 expression and antioxidant properties. However, clinical studies need to be carried out to reach a definite conclusion.

6.
J Clin Lab Anal ; 36(12): e24752, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36357338

RESUMO

BACKGROUND AND AIM: This study aimed to assess the antioxidant effects of amlodipine in transfusion-dependent ß-thalassemia (TDT) patients. METHODS: This crossover trial consisted of two sequences (AP and PA). In the AP sequence, nine cases received amlodipine 5 mg daily (phase I) and then were switched to placebo (phase II). In PA sequence, 10 patients took the placebo (phase I) and were shifted to amlodipine (phase II). The washout period was 2 weeks. The length of each phase was 6 months. Serum malondialdehyde (MDA, µmol/L), carbonyl (protein CO, µM/L), glutathione (GSH, nM/L), and total antioxidant capacity (TAC, µmol FeSO4/L) were measured in the beginning and at the end of phases I and II. The clinical significance was viewed as a minimum change difference of 5% for each outcome between amlodipine and placebo. RESULTS: Seventeen cases completed the study. According to the baseline MDA values, the adjusted Hedges's g for MDA was -0.59, 95% confidence interval [CI] -1.26 to 0.08. After controlling the baseline protein CO values, Hedges's g computed for protein CO was -0.11, 95% CI -0.76 to 0.55. The estimated values of the adjusted Hedges's g for GSH and TAC were also 0.26, 95% CI -0.40 to 0.91, and 0.42, 95% CI -0.24 to 1.09, respectively. The change difference for MDA was 8.3% (protein CO 2.2%, GSH 3.1%, and TAC 12.9%). CONCLUSION: Clinically, amlodipine therapy is an efficacious adjuvant treatment with conventional iron chelators for improving the levels of MDA and TAC in patients with TDT.


Assuntos
Antioxidantes , Talassemia beta , Humanos , Anlodipino/uso terapêutico , Antioxidantes/uso terapêutico , Antioxidantes/metabolismo , Talassemia beta/tratamento farmacológico , Estudos Cross-Over , Glutationa , Malondialdeído , Estresse Oxidativo , Método Duplo-Cego
7.
Caspian J Intern Med ; 13(1): 61-69, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35178209

RESUMO

BACKGROUND: Beta-thalassemia major patients typically require chronic transfusion and iron-chelating agents to reduce serum iron overload. Osveral® is an available Iranian brand name of deferasirox used by majority of thalassemic patients. The aim of this study was to compare the efficacy of Osveral® vs. Exjade® in major beta- thalassemia patients. METHODS: In this randomized clinical trial, all patients received a single daily dose of 30 mg/kg either of Osveral® or Exjade® for 6 months. Primary outcome was the mean of bimonthly changes in serum ferritin concentration and secondary outcomes included mean changes of heart and liver MRI T2* after a year. RESULTS: Finally, 80 patients completed the study. The mean serum ferritin level at the end of sixth month significantly decreased in Osveral® and Exjade® groups (p<0.01). After a year, means cardiac MRI T2* in Osveral® group were changed from 25.9±9.6 ms to 25.4±9.7 ms and in Exjade® group from 24.8±9.2 ms to 26.9±5.9 ms, with no significant difference (P=0.43). Mean liver MRI T2* for Osveral® and Exjade® groups were 8.6±6.4 ms (baseline 6.3±4.7) and 6.3±4 ms (baseline 4.9±3.5), respectively and there was no significant difference between two study arms (P=0.1). CONCLUSION: Osveral® decreased significantly the serum ferritin level and improved heart and liver iron overload as efficient as Exjade®. It can be a suitable cost-effective alternative agent in beta-thalassemia major patients.

8.
Expert Rev Clin Pharmacol ; 14(11): 1445-1453, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34486906

RESUMO

Background and aim: We conducted a systematic review to apprise the efficacy of silymarin in conjunction with standard iron chelators on iron overload for transfusion-dependent ß-thalassemia (TDT) patients.Methods: We searched PubMed, Web of Science, Scopus, Sciencedirect, the Cochrane Library (the Cochrane Database of Systematic Reviews, and the Cochrane Central Register of Controlled Trials (CENTRAL) to 1 May 2020. All randomized controlled trials (RCTs) studies comparing the effect of iron chelators alone versus silymarin plus standard routine treatment on iron burden amid TDT were included in this review. Primary outcomes comprised serum ferritin level (ng/mL), liver iron concentration (LIC Fe/kg dry weight), and total iron binding capacity (TIBC mcg/dL)Results: Combination therapy of silymarin and iron chelators showed a significant improvement in serum ferritin level in TDT patients, compared to nonsilymarin users [eight studies, n = 477]; weighted mean difference (WMD) -1.79, 95% confidence interval [CI] -2.86 to -0.72, I2 96.1%; P = 0.001. Concurrent treatment with silymarin failed to significantly decrease LIC in TDT patients [two studies, n = 106]; WMD 0.74, 95% CI -1.62 to 3.10, I2 96.6%; P = 0.54.Conclusion: There is no evidence of the effectiveness of adding silymarin to standard iron chelators to reduce iron load in TDT.


Assuntos
Quelantes de Ferro/administração & dosagem , Silimarina/administração & dosagem , Talassemia beta/terapia , Transfusão de Sangue , Quimioterapia Combinada , Ferritinas/sangue , Humanos , Sobrecarga de Ferro/tratamento farmacológico , Ensaios Clínicos Controlados Aleatórios como Assunto
9.
Iran J Pharm Res ; 20(1): 318-326, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34400961

RESUMO

This study aimed to assess the additive value of olanzapine to a combination of ondansetron and dexamethasone to prevent chemotherapy-induced nausea and vomiting (CINV) in pediatric patients. A total of 40 patients between 4 to 18 years of age were enrolled in this randomized clinical trial. Both groups received a combination of ondansetron and dexamethasone, and 0.14 mg/kg olanzapine or matched placebo were administered for olanzapine and control groups, respectively. The primary end points were complete response and lack of nausea as far as three days after chemotherapy evaluated by the Common Terminology Criteria for Adverse Effects (CTCAE) v5.0 and the Multinational Association of Supportive Care in Cancer (MASCC) Anti-emesis Tool (MAT). Side effects of olanzapine were also analyzed. In patients receiving the standard regimen of ondansetron and dexamethasone, nausea was observed in 10.5% and 21% of patients according to MAT and CTCAE scales, respectively. In the olanzapine group, 37.5% (MAT scale) and 31.3% (CTCAE scale) of patients developed nausea. Complete response was observed in 84% (MAT scale) and 94.7% (CTCAE scale) of patients in the placebo group receiving ondansetron and dexamethasone. In comparison, it was observed in 87.5% (MAT scale) and 81.25% (CTCAE scale) for patients allocated to the olanzapine group. Neither acute nor delayed CINV was statistically different between placebo and olanzapine groups. The frequency of adverse effects was higher in the olanzapine group. Adding olanzapine to the standard regimen of CINV prophylaxis was only unhelpful in pediatric patients receiving moderately emetogenic chemotherapy but also associated with a higher rate of minor side effects.

10.
Int J Clin Pract ; 75(8): e14337, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33969592

RESUMO

BACKGROUND AND AIM: This study examined whether administration of amlodipine could improve myocardial iron loading status in patients with transfusion dependent ß-thalassemia (TDT), through a placebo-controlled, crossover study. METHODS: Amlodipine (5 mg, daily) or placebo were prescribed to all patients (n = 19) for 6 months, and after a 2-week washout period, patients were crossed over to the other group. The efficacy of amlodipine on iron loading was assessed by measuring myocardial T2*-weighted magnetic resonance imaging (MRI T2*, millisecond [ms]) and serum ferritin (ng/mL). RESULTS: Seventeen patients completed the study. The mean ± standard deviation [SD] of myocardial MRI T2* at baseline was 9.83 ± 2.67 ms Myocardial MRI T2* value rose to 11.44 ± 4.14 ms post amlodipine treatment in all patients. After placebo, myocardial MRI T2* value reached 10.29 ± 4.01 ms After controlling the baseline measures, Hedges's g for ferritin and myocardial MRI T2* outcomes were estimated 3.84 (95% confidence interval [CI] 2.68 to 4.97) and -1.80 (95% CI -2.58 to -0.10), respectively. CONCLUSION: Amlodipine might improve myocardial MRI T2* and serum ferritin level compared to placebo. However, larger clinical studies are needed to confirm the results.


Assuntos
Sobrecarga de Ferro , Talassemia beta , Anlodipino/uso terapêutico , Terapia por Quelação , Estudos Cross-Over , Humanos , Sobrecarga de Ferro/tratamento farmacológico , Fígado , Imageamento por Ressonância Magnética , Talassemia beta/tratamento farmacológico
11.
Complement Med Res ; 28(2): 123-130, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32971524

RESUMO

BACKGROUND: In ß-thalassemia major (ß-TM) patients, iron overload is one of the main causes of inflammation. This study investigated whether use of silymarin could improve inflammatory status in patients with ß-TM and iron overload, through a placebo-controlled, crossover study. METHODS: Silymarin (140 mg, 3 times a day) or placebo were prescribed to all patients (n = 82) for 12 weeks, and after a 2-week washout period, patients were crossed over to the other group. The efficacy of silymarin was assessed by measuring serum C-reactive protein (CRP) (mg/dL), interleukin (IL)-6 (pg/mL), and IL-10 (pg/mL). RESULTS: Sixty-nine patients completed the study. Data analysis showed that compared to the placebo, silymarin could decrease CRP, IL-6, and raise IL-10 significantly (the p values for all variables were <0.001). Cohen's d for CRP adjusted according to the baseline CRP value was -1.72, the 95% confidence interval (CI) -2.12 to -1.33. The adjusted Cohen's d equal to -1.12, 95% CI -1.48 to -0.76, and 0.78, 95% CI 0.43-1.12, were also estimated for IL-6 and IL-10, respectively. CONCLUSION: The results of the current study demonstrate that the combination of iron chelation therapy with silymarin can improve inflammatory status in patients with ß-TM in the clinical setting.


Assuntos
Sobrecarga de Ferro , Silimarina , Talassemia beta , Terapia por Quelação , Estudos Cross-Over , Método Duplo-Cego , Humanos , Inflamação , Interleucina-10 , Interleucina-6 , Sobrecarga de Ferro/tratamento farmacológico , Silimarina/uso terapêutico , Talassemia beta/tratamento farmacológico
12.
Braz. J. Pharm. Sci. (Online) ; 57: e19033, 2021. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1345461

RESUMO

Previously, we evaluated the effect of trichostatin A (TSA) on the expression of DNA methyltransferase 1 (DNMT1) in Hepatocellular Carcinoma (HCC). Fragile histidine triad (FHIT) and WW domain-containing oxidoreductase (WWOX) are two of the most common down-regulated genes in many cancers located on chromosome 3p14.2 and 16q23.3-24.1 respectively. The aim of the current study was to assess the effect of TSA on these genes expression, cell growth, and apoptosis in HCC WCH 17 cell. The cells were seeded and treated with TSA at different times. Then, MTT assay, flow cytometry, and qRT-PCR were achieved to determine viability, apoptosis and gene expression respectively. Cell growth was significantly inhibited, 92 to 36% after 24 h, 86 to 28% after 48 h, and 78 to 24% after 72 h. The results of flow cytometry confirmed that TSA increased apoptosis compared to the control group, the apoptosis percentage increased to 12%, 16%, and 18% in comparison to control groups (2%). Significant up-regulation of the genes was observed in all treated groups. We concluded that re-expression of silenced WWOX and FHIT genes could be achieved by TSA resulting in cell growth inhibition and apoptosis induction in WCH 17 cell.


Assuntos
Apoptose/fisiologia , Carcinoma Hepatocelular/patologia , Oxidorredutase com Domínios WW , Crescimento/fisiologia , Cromossomos/classificação , Citometria de Fluxo/instrumentação , Neoplasias/classificação
13.
J Lasers Med Sci ; 10(2): 104-107, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31360378

RESUMO

Introduction: Many valid option modalities are available for the management of urethral stricture disease (USD), such as internal urethrotomy which has the success rates of 33%-60%. The aim of this study was to assess the outcome of holmium: YAG (Ho: YAG) laser urethrotomy (HLU). Methods: One hundred thirty-eight patients with urethral stricture with the mean age of 48±3.03 years old treated by HLU from March 2011 to August 2017. The main purpose of this investigation was to evaluate mean operation time, stricture recurrence rate and post-operation Qmax and complications of transurethral HLU. Results: The most common cause of USD was trauma in 82 (59.4%) patients. Mean laser operation time, mean hospital stay and mean postoperative duration of catheterization were 23.08 ± 9.1 minutes, 19.02 ± 10.7 hours and 10.3 ± 1.05 days respectively. The mean Qmax was 8.3 ± 2.07 mL/s before surgery and 16 ±3.1 mL/s afterward. At the end of 12 months follow-up, a total of 37 (26.8%) patients developed recurrence of the stricture. Patients with posterior, longer urethral strictures and previous history of interventions have more recurrence rate of the stricture. Conclusion: HLU is minimally invasive and seems to be an effective and safe management option for primary, short, urethral strictures. The hospital stay is remarkably short and complications are negligible.

14.
Curr Med Mycol ; 5(1): 32-36, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31049456

RESUMO

BACKGROUND AND PURPOSE: Candidemia is a life-threatening fungal infection with significant mortality and morbidity in neutropenic individuals, immunosuppressive chemotherapy recipients, and broad-spectrum antibiotics consumers. The epidemiology and antifungal susceptibility testing of non-albicans Candida species have been poorly studied. These species are characterized by low susceptibility to azoles and echinocandins. Herein, we report the first pediatric case of candidemia due to C. guilliermondii in Iran and review the literature on fungemia caused by C. guilliermondii. CASE REPORT: We presented the first candidemia case due to C. guilliermondii in a 4-month-old male infant with neuroblastoma in Iran. This study also involves a comprehensive literature review on fungemia caused by C. guilliermondii during a period of 18 years (i.e., 2000-2018) to discuss the epidemiology, clinical features, and treatment of this disease. The literature review resulted in the identification of 501 cases of candidemia caused by C. guilliermondii. Most of the patients were adults and had multiple risk factors. However, the main risk factors were significantly related to cancer chemotherapy, followed by central venous catheter use and Intensive Care Unit admission. Mortality rate due to this disease had a range of 3.4-66.6%, in this regard, the patients with cancer had the highest mortality rate. CONCLUSION: Given the high mortality of candidemia, the early diagnosis of this infection and timely initiation of antifungal therapy significantly improve the patients' survival rate and result in better outcomes. Consequently, it is highly recommended to monitor the local epidemiology of this life-threatening infection and raise awareness in this regard.

15.
Phytother Res ; 32(3): 496-503, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29235162

RESUMO

This study aimed to determine the potential iron-chelating effects of silymarin in patients with ß-thalassemia major receiving standard iron-chelation therapy. We evaluated whether addition of silymarin to standard iron-chelation therapy could improve iron burden markers and liver and cardiac function in these patients, via a placebo-controlled, crossover clinical study. Silymarin (140 mg) or placebo were administered thrice daily to all patients (n = 82) for 12 weeks, and after a 2-week washout period, patients were crossed over to the other groups. Silymarin efficacy was assessed by measuring serum iron level, ferritin level, total iron-binding capacity and liver and cardiac function on magnetic resonance imaging. Silymarin treatment resulted in a negative change in the serum iron and ferritin levels and a positive change in the total iron-binding capacity levels (treatment effect, p < .001, p = .06, and p = .05, respectively). Silymarin treatment led to positive changes in cardiac and liver function in both treatment sequences of study; however, this was not statistically significant. There was a negative change in liver iron concentration in both treatment sequences (treatment effect, p = .02). In conclusion, combined iron-chelation and silymarin therapy was effective for improving the iron-burden status in patients with ß-thalassemia major.


Assuntos
Terapia por Quelação/métodos , Quelantes de Ferro/uso terapêutico , Sobrecarga de Ferro/tratamento farmacológico , Silimarina/uso terapêutico , Talassemia beta/tratamento farmacológico , Adulto , Estudos Cross-Over , Feminino , Humanos , Quelantes de Ferro/farmacologia , Masculino , Silimarina/farmacologia , Adulto Jovem
16.
Complement Ther Med ; 35: 25-32, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29154063

RESUMO

BACKGROUND & AIMS: Blood transfusion therapy is lifesaving for individuals with ß-thalassemia major (ß-TM). Iron burden following blood transfusion is the main cause of oxidative stress (OS) and organ dysfunction in these patients. The aim of this study was to evaluate the effects of silymarin on serum antioxidant and oxidative status in patients with ß-TM. METHODS: A crossover, randomized controlled trial was performed on 82 thalassemia patients. In two periods of 12 weeks, patients received 420mg silymarin (divided into three equal 140-mg daily doses) and placebo. The washout period between the two phases was two weeks. Serum malondialdehyde (MDA), protein carbonyl (CO), total antioxidant capacity (TAC), and reduced glutathione (GSH) were measured before and after both periods. RESULTS: Sixty-nine patients completed the study. Mean serum MDA and protein CO significantly decreased in all patients with ß-TM after three months of treatment with silymarin. At the end of the study, serum MDA decreased from 20.36±20.11 to 4.79±4.71µmol/l (compared to 17.81±16.05µmol/l after administration of placebo), and protein CO dropped from 0.31±0.28 to 0.11±0.09mM/l (compared to 0.24±0.17mM/l with placebo). Additional laboratory parameters (such as serum TAC and plasma GSH) were also significantly elevated after therapy with silymarin. At the end of the study, serum TAC increased in all patients from 620.7±202.64 to 971.83±328.16µmol FeSO4/l (compared to 672.22±206.88µmol FeSO4/l with placebo), and GSH increased from 46.16±41.68 to 195.35±210.98nM/l (compared to 58.52±48.95nM/l with placebo). The treatment effect of silymarin was measured using a mixed-effects model of variance analysis for changes in MDA, protein CO, TAC, and GSH, with significant effects being demonstrated for each laboratory parameter (P<0.001, P=0.002, P<0.001, and P<0.001, respectively). CONCLUSIONS: Silymarin was effective in decreasing serum OS and enhancing serum antioxidant capability in patients with ß-thalassemia major. Silymarin given as an adjuvant therapy to standard iron chelators may provide an improvement in the OS measurements obtained in these patients, with accompanying benefit.


Assuntos
Antioxidantes/farmacologia , Transfusão de Sangue , Estresse Oxidativo/efeitos dos fármacos , Extratos Vegetais/farmacologia , Silimarina/farmacologia , Talassemia beta/terapia , Adolescente , Adulto , Antioxidantes/metabolismo , Estudos Cross-Over , Feminino , Glutationa/sangue , Humanos , Ferro/sangue , Masculino , Malondialdeído/sangue , Fitoterapia , Carbonilação Proteica/efeitos dos fármacos , Adulto Jovem
17.
Clin Pract ; 7(1): 912, 2017 Jan 11.
Artigo em Inglês | MEDLINE | ID: mdl-28243431

RESUMO

There are few papers on the combination therapy of deferiprone (DFP) and deferasirox (DFX) in iron-overloaded patients with transfusion-dependent ß-thalassemia major (ß-TM). A total of 6 patients with ß-TM (5 males and 1 female) with a mean age of 23.8±5.8 years (ranging from 17 to 31) used this treatment regimen. The mean doses of DFP and DFX were 53.9±22.2 and 29.3±6.8 mg/kg/day, respectively. The duration of treatment was 11.5±4.6 months. Their serum ferritin levels were measured to be 2800±1900 and 3400±1600 ng/mL before and after treatment, respectively (p<0.6). Their cardiac magnetic resonance imaging (MRI) T2* values were 16.69±15.35 vs 17.38±5.74 millisecond (ms) before and after treatment, respectively (p < 0.9). Although there was no significant difference between their cardiac MRI T2* values before and after treatment statistically, the values improved after combination therapy with DFP and DFX in most of the patients. Liver MRI T2 * values were changed from 2.12±0.98 to 3.03±1.51 ms after treatment (p < 0.01); Further, their liver T2* values and liver iron concentration (LIC) were improved after treatment. Our study found that cardiac MRI T2* values, liver MRI T2* values, and LIC were improved after combination therapy with DFP and DFX in ß-TM patients and that DFP and DFX combination therapy could be used to alleviate cardiac and liver iron loading.

18.
Int J Hematol Oncol Stem Cell Res ; 10(4): 224-231, 2016 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-27928477

RESUMO

Background: Thalassemia is a chronic, inherited blood disorder, which in its most severe form, causes life-threatening anemia. Thalassemia patients not only engage with difficulties of blood transfusion and iron chelating therapy but also have some social challenges and health threatening factors. There are some reports on quality of life in thalassemia patients around the world from southeast of Asia to Italy in Europe and United States. In this study, we tried to evaluate and compare Health Related Quality of life (HRQoL) and the health utility in beta thalassemia major patients receiving different types of iron chelators and living in different socio-economical situations. Subjects and Methods: EQ-5D-3L accompanied by a Visual Analogue Scale (VAS) questionnaire was used. The respondents were patients with beta thalassemia major that were at least 12 years old selected from 3 provinces of Sistan-Blouchestan, Fars and Mazandaran. Comorbidities including heart complication, Diabetes Mellitus and Hepatitis and also types of iron chelators (oral, injection, combination of both) were also asked. Cross tab and ANOVA analysis conducted to evaluate each dimension score and health utility differences between provinces, iron chelation methods, comorbidities, age group and gender. Results: 528 patients answered the questionnaires. The health utility of patients that received oral iron chelator were 0.87 ± .01 for oral iron chelators versus 0.81 ± .01 for injection dosage form (p<0.05). Increase in age was accompanied by decrease in health utility. Females faced more usual activity problems, anxiety and depression. Heart problems were more prevalent in males. Conclusion: This study suggests that the quality of life of beta thalassemia major patients is dependent on type of iron chelation treatment which they received, the gender they have, the comorbidities they suffer and socio-economical situations they live in.

19.
Urol J ; 13(6): 2920-2926, 2016 12 08.
Artigo em Inglês | MEDLINE | ID: mdl-27928815

RESUMO

PURPOSE: To compare monotherapy with tadalafil or tamsulosin and their combination therapy in men with benignprostatic hyperplasia and erectile dysfunction by comparing IPSS score, prostate volume and Qmax and someother outcomes. MATERIALS AND METHODS: This randomized, single-blind, paralleled group clinical trial was done in 2013 on patientswho had referred to our hospital in Tehran. All patients with lower urinary tract symptoms, benign prostatichyperplasia and any grade of erectile dysfunction were recruited. They were randomly divided into three groups(61 participants in each group): Group A received 20 mg/daily tadalafil; Group B received 0.4 mg/daily tamsulosin;Group C receieved a combination of 0.4 mg/daily tamsulosin and 20 mg/daily tadalafil. Primary outcomeswere prostate volume, prostate specific antigen, post-void residual volume, IPSS score, LUTS severity, Qmax,IIEF and erectile dysfunction severity and secondary outcome was complications. RESULTS: The mean ± SD of ultrasonographic prostate volume was 61.4 ± 15.1 mL and prostate specific antigenlevel was 2.4 ± 1.9 ng/dl. Post-void residual level was significantly different before and after the treatment, exceptfor group A. Also, this group had no meaningful difference compared to the other groups in this regard (P > 0.05).There were significant differences between pre- and post-treatment international prostate symptom scores in eachgroup (P < 0.05). CONCLUSION: Combination of tamsulosin and tadalafil can improve international prostate symptom scores, internationalindex of erectile function questionnaire scores and Qmax in patients with lower urinary tract symptoms andbenign prostatic hyperplasia to more degrees than their separate use. This combination is recommended becauseof its synergistic effects, well toleration and safety.


Assuntos
Antagonistas de Receptores Adrenérgicos alfa 1/uso terapêutico , Disfunção Erétil/tratamento farmacológico , Inibidores da Fosfodiesterase 5/uso terapêutico , Hiperplasia Prostática/tratamento farmacológico , Sulfonamidas/uso terapêutico , Tadalafila/uso terapêutico , Idoso , Quimioterapia Combinada , Disfunção Erétil/complicações , Humanos , Sintomas do Trato Urinário Inferior , Masculino , Hiperplasia Prostática/complicações , Método Simples-Cego , Tansulosina
20.
Urol J ; 13(4): 2788-93, 2016 Aug 25.
Artigo em Inglês | MEDLINE | ID: mdl-27576887

RESUMO

PURPOSE: To evaluate postoperative results of laparoscopic varicocelectomy using bipolar electrosurgery and analyze semen according to the grade of varicocele after surgery. MATERIALS AND METHODS: In a six-year period, 416 men with clinical varicocele and impaired semen parameters or infertility underwent laparoscopic varicocelectomy using bipolar electrosurgery. All patients were assessed for hydrocele and recurrence of varicocele six months and one year after the procedure. Semen analyses were obtained before and after the surgery and were compared according to the clinical grade of varicocele. RESULTS: Seven patients (1.7%) had right side, 391 (94%) had left side and 18 (4.3%) had bilateral varicoceles. Varicocele grades I, II and III were detected in 113 (27.1%), 232 (55.7%) and 71 (17%) patients respectively. Abdominal wall emphysema and pneumoscrotum were developed in 19 (4.5%) and 11 (2.6%) cases. Recurrence rate was significantly higher in grade III varicocele (P < .001). In patients with varicocele grades of I and II, sperm concentration, motility and morphology significantly improved six months after surgery (P < .05). In patients with grade III varicocele, only sperm concentration improved (P < .05). Sperm motility and morphology did not show any significant change after one year. CONCLUSION: Laparoscopic varicocelectomy using bipolar cautery is a safe, feasible and cost-effective technique with few complications. It significantly improves sperm parameters. A follow up program for at least one year after the surgery seems reasonable to detect recurrent cases. The study shows that increase in clinical varicocele grade can cause irreversible deleterious effects on sperm motility and morphology. So, earlier treatment is recommended. .


Assuntos
Eletrocirurgia , Laparoscopia , Análise do Sêmen , Varicocele/cirurgia , Humanos , Masculino , Fatores de Tempo , Resultado do Tratamento , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Adulto Jovem
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