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1.
Clin Exp Dermatol ; 47(1): 63-71, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34236713

RESUMO

BACKGROUND: Palmoplantar pustulosis (PPP) is a rare, chronic, inflammatory skin disease characterized by sterile pustules on palmar or plantar areas. Data on PPP are scarce. AIM: To investigate the clinical characteristics and risk factors for disease severity in a large cohort of Turkish patients with PPP. METHODS: We conducted a cross-sectional, multicentre study of patients with PPP recruited from 21 tertiary centres across Turkey. RESULTS: In total, 263 patients (165 women, 98 men) were evaluated. Most patients (75.6%) were former or current smokers. The mean Palmoplantar Pustulosis Area and Severity Index (PPPASI) was 8.70 ± 8.06 and the mean Dermatology Life Quality Index (DLQI) score was 6.87 ± 6.08, and these scores were significantly correlated (r = 0.52, P < 0.001). Regression analysis showed that current smoking was significantly associated with increased PPPASI (P = 0.03). Coexisting psoriasis vulgaris (PsV) was reported by 70 (26.6%) patients. Male sex prevalence, PPP onset incidence, disease duration, DLQI, and prevalence of nail involvement and psoriatic arthritis (PsA) were significantly increased among patients with PPP with PsV. Of the 263 patients, 18 (6.8%) had paradoxical PPP induced by biologic therapy, and these patients had significantly increased mean DLQI and prevalence of PsA (r = 0.03, P = 0.001). CONCLUSION: Our data suggest that smoking is a risk factor for both PPP development and disease severity. Patients with PPP with PsV present distinct clinical features and patients with biologic therapy-induced paradoxical PPP have reduced quality of life and are more likely to have PsA.


Assuntos
Dermatoses do Pé/diagnóstico , Dermatoses do Pé/epidemiologia , Dermatoses da Mão/diagnóstico , Dermatoses da Mão/epidemiologia , Psoríase/diagnóstico , Psoríase/epidemiologia , Qualidade de Vida , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Prospectivos , Fatores de Risco , Índice de Gravidade de Doença , Turquia/epidemiologia
2.
Arch Ital Biol ; 159(2): 51-63, 2021 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-34184238

RESUMO

PURPOSE: Hemangioblastomas (HBs) are highly vascular tumors, constituting 2%-3% of central nervous system (CNS) tumors. Surgery is a treatment option for HBs. The purpose of this study was to evaluate the demographic, clinical, and radiological findings of patients with HBs who were operated on via microsurgical technique at our clinic and to determine the findings specific to HBs and evaluate their pathological findings and confirmation. METHODS: We evaluated age, gender, initial complaints and duration of 100 patients (50 female and 50 male patients), presence of cranial nerve deficits, magnetic resonance imaging, data (localization, presence of hydrocephalus, tumor size, enhancement pattern, and cystic and solid component features), resection rates, pathological findings (grade, Ki-67 ratio, and staining results), recurrence, special conditions of patients, and the final status of patients in this study. RESULTS: Mean age was 39.08 ± 14.77 years and 66.7% of the patients presented with cerebellar findings. Five of the cases were located in the brainstem, five were located in the cerebellopontine angle, and two were in the cerebellar cortex. In all patients, gross total resection was performed using arteriovenous malformation repair. CONCLUSIONS: Surgical intervention of small and cystic tumors can be performed safely with en bloc resection along with preoperative detailed imaging, improved microsurgical techniques, and an extensive understanding of anatomical and vascular structures. On the contrary, patients with a brainstem invasion and solid structure present surgical difficulties due to arteriovenous malformation-like vascularizations; therefore, gross total resection is the optimal treatment in HBs.


Assuntos
Neoplasias Cerebelares , Hemangioblastoma , Adulto , Encéfalo , Neoplasias Cerebelares/diagnóstico por imagem , Neoplasias Cerebelares/cirurgia , Feminino , Hemangioblastoma/diagnóstico por imagem , Hemangioblastoma/cirurgia , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
3.
Transplant Proc ; 49(3): 587-592, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28340838

RESUMO

BACKGROUND: Ventricular assist devices (VADs) are alternative approaches to medical treatment in patients with acute or chronic heart failure. The goal of this study was to compare an anesthetic approach in patients undergoing implantation of a VAD with (on-pump) or without (off-pump) cardiopulmonary bypass (CPB) through left thoracotomy. METHODS: A total of 32 patients were divided into 2 groups: on-pump (group 1) and off-pump (group 2). A standard anesthesia protocol was used in all patients. Baseline characteristics of the patients, intraoperative hemodynamic and respiratory variables, anesthetic agents and vasoactive drugs administered, the amount of blood products, extubation, length of hospital stay and intensive care unit stay, and postoperative complications were recorded. RESULTS: Patients' mean age was 54.7 ± 13.3 years (range, 18-74 years). Eighteen patients underwent surgery with CPB. Demographic data of the patients, preoperative characteristics, intraoperative use of blood products, intraoperative complications, and anesthetic drugs used were similar between groups (P > .05). The duration of surgery (219 ± 23 vs 273 ± 56 minutes) and anesthesia (274 ± 38 vs 323 ± 57 minutes) were shorter in group 2; there was no difference between the 2 groups in terms of mechanical ventilation time, length of stay in the intensive care unit, and length of hospital stay. There was no decrease in postoperative oxygen parameters and an increase in patient lactate levels with the use of CPB. The use of fresh frozen plasma and platelet suspension in the postoperative period was significantly higher in group 1 (P < .05). The rate of complications and mortality rate were comparable between the 2 groups (P > .05). CONCLUSIONS: Our study results show that the use of CPB during VAD implantation via left thoracotomy increases operation time and use of blood products, while causing no change in the rate of complications.


Assuntos
Anestésicos , Ponte Cardiopulmonar/métodos , Coração Auxiliar , Implantação de Prótese/métodos , Toracotomia/métodos , Adolescente , Adulto , Idoso , Anestesia/métodos , Cuidados Críticos , Feminino , Insuficiência Cardíaca/cirurgia , Humanos , Unidades de Terapia Intensiva , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Duração da Cirurgia , Complicações Pós-Operatórias/etiologia , Período Pós-Operatório , Respiração Artificial/efeitos adversos , Estudos Retrospectivos , Adulto Jovem
4.
Transplant Proc ; 49(3): 599-602, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28340840

RESUMO

OBJECTIVE: To report our initial experience with Heartmate 3 ventricular assist device (HM3) in cases with end-stage heart failure (ESHF). METHODS: Charts of 8 ESHF patients who underwent HM3 implantation in our clinic from January to June 2016 (group 1) and 16 patients who underwent HM2 implantation during 2015 (group 2) were reviewed retrospectively. Demographics as well as pre- and early postoperative medical data were noted and statistically analyzed between the 2 groups. RESULTS: No statistical difference was found in age or sex distribution between groups (P > .05). Mean Interagency Registry for Mechanically Assisted Circulatory Support scores were 2.13 ± 0.99 and 3.38 ± 0.72 in groups 1 and 2, respectively (P = .020). Mean cardiopulmonary bypass time, and chest tube drainage fluid volume and blood product requirement during intensive care unit (ICU) stay were 64.0 ± 13.9 minutes, 1,112.5 ± 516.7 mL, and 318.8 ± 271.2 mL, respectively, in group 1 and 89.0 ± 33.3 minutes, 2,081.3 ± 1,696.0 mL, and 1,118.8 ± 1,010.8 mL in group 2 (P = .027, P = .019, and P = .040, respectively). Need for surgical revision and early mortality were not evident for group 1, although 4 cases (25.0%) required revision surgery, and early mortality was seen in 3 cases (18.8%) in group 2 (P = .121 and P = .190, respectively). Mean durations of ICU stay and total postoperative hospitalization were 5.9 ± 2.0 and 18.3 ± 5.5 days, respectively in group 1 and 6.2 ± 4.3 and 18.0 ± 6.9 days in the surviving 13 patients of the group 2 (P = .645 and P = .697, respectively). CONCLUSIONS: With its shorter implantation time and reduced blood product requirement in the early postoperative period, the HM3 system was found to be safe and effective in ESHF treatment.


Assuntos
Insuficiência Cardíaca/cirurgia , Coração Auxiliar , Implantação de Prótese/métodos , Adulto , Idoso , Cuidados Críticos/estatística & dados numéricos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Sistema de Registros , Reoperação , Estudos Retrospectivos , Fatores de Tempo
5.
Transplant Proc ; 45(3): 1017-9, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23622612

RESUMO

BACKGROUND: In this report, we share our experience with left ventricular assist device (LVAD) implantation in cases with a left ventricular (LV) thrombus. METHOD: Over the 3 years, more than 100 end-stage heart failure cases have been treated with LVAD implantation in our center, including 6 patients with a LV thrombus. Three were detected using preoperative transthoracic echocardiography. Fifty percent of the patients had dilated cardiomyopathy and the remaining cases had an ischemic etiology. Double inotropic support with dopamine and dobutamine was used in all, with 3 drugs with the addition of adrenaline in 2 patients. In 4 cases we implanted the HeartWare Ventricular Assist System (HeartWare, Inc., Miramar, Fla, United States) and in the remaining 2 patients, the Berlin Heart EXCOR ventricular assist device (Berlin Heart AG, Berlin, Germany) for biventricular support. In 1 patient the apical ventriculotomy was extended to remove an intertrabecular thrombosis and ventricular septal surface covered with a dacron patch to minimize the thrombogenic potential. RESULTS: Two patients died due to sepsis and multiorgan failure. None of the patients experienced a neurological event, pump thrombosis, or pump malfunction. Two subjects underwent re-explorations due to hemorrhage. Two candidates underwent successfull transplantation without any evidence of thrombosis in the explanted heart or device. CONCLUSION: We believe that patients with a LV thrombus and preserved right ventricular function are good candidates for implantation of a LVAD after removing the intracavitary thrombus.


Assuntos
Insuficiência Cardíaca/complicações , Coração Auxiliar/estatística & dados numéricos , Trombose/prevenção & controle , Disfunção Ventricular Esquerda/cirurgia , Dobutamina/administração & dosagem , Dopamina/administração & dosagem , Insuficiência Cardíaca/fisiopatologia , Insuficiência Cardíaca/cirurgia , Humanos , Trombose/etiologia
6.
J Eur Acad Dermatol Venereol ; 27(3): 365-9, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22221210

RESUMO

BACKGROUND: Warts are abnormal skin growths caused by human papilloma virus (HPV) infections within the skin of the patients. Sometimes the disease is difficult to treatment, and also, the relationship between HPV and some forms of skin cancers is important. The cutaneous oxidative stress status of warts is absent in the literature. OBJECTIVES: To evaluate the role of oxidative stress in affected skin areas in a group of patients with plantar warts. METHODS: Thirty-six consecutive patients with a diagnosis of plantar warts were enrolled. The samples were obtained by scraping the skin surface. Superoxide dismutase (SOD) and catalase (CAT) activities and malondialdehyde (MDA) levels were measured spectrophotometrically at samples. RESULTS: The SOD activity was significantly lower, and the MDA level was significantly higher on the lesional area than on the non-lesional area (P < 0.001 for each), and there was no significant difference in the CAT activity between both areas (P = 0.11). CONCLUSION: Cutaneous oxidative stress in patients with plantar warts may play a role in pathogenesis of the disease. The addition of topical drugs with antioxidative effects may be valuable in the treatment of warts.


Assuntos
Estresse Oxidativo , Verrugas/metabolismo , Adolescente , Adulto , Catalase/metabolismo , Criança , Feminino , Humanos , Masculino , Superóxido Dismutase/metabolismo , Verrugas/enzimologia , Adulto Jovem
7.
Transplant Proc ; 44(6): 1732-4, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22841257

RESUMO

BACKGROUND: Increased experience and success with ventricular assist devices (VAD) has permitted more aggressive use in patients formerly believed to be inappropriate for mechanical circulatory support (MCS). There is no clearly proven policy to manage end-stage heart failure patients with valvular pathologies. The aim of this report was to analysis our experience with combined approach of VAD implantation and valvular procedures among patients with valvular heart disease and end-stage heart failure. METHODS: We evaluated the clinical records of 67 patients who underwent MCS from April 2007 to September 2011. We identified 12 patients (17.9%) who received concomitant valvular procedures, four of whom had significant aortic insufficiency and received a simple coaptation stitch at the center to approximate the fibrous nodules of Arantius. The mechanical aortic valve was replaced with a stentless bioprosthesis in three patients. Mitral valve commissurotomy was performed in one patient with mitral stenosis and seven patients underwent tricuspit valve repair using an annuloplasty ring. RESULTS: All 12 patients were males, of mean age 50.3 ± 11.5 years (range = 25-66). Eleven of them (91.6%) survived the early and late postoperative periods. Ten subjects (83.3%) continue to be supported with VAD; 1 (8.3%) was successfully bridged to transplantation. Each study participant regression of the valvular pathologies by early echocardiography demonstrated. CONCLUSION: Concomitant valve surgery during VAD implantation appeared to be a reasonable option in end-stage heart failure patients with valvular heart disease.


Assuntos
Procedimentos Cirúrgicos Cardíacos/instrumentação , Insuficiência Cardíaca/cirurgia , Doenças das Valvas Cardíacas/cirurgia , Implante de Prótese de Valva Cardíaca , Coração Auxiliar , Anuloplastia da Valva Mitral , Adulto , Idoso , Procedimentos Cirúrgicos Cardíacos/efeitos adversos , Procedimentos Cirúrgicos Cardíacos/mortalidade , Feminino , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/mortalidade , Transplante de Coração , Doenças das Valvas Cardíacas/complicações , Doenças das Valvas Cardíacas/mortalidade , Implante de Prótese de Valva Cardíaca/efeitos adversos , Implante de Prótese de Valva Cardíaca/mortalidade , Coração Auxiliar/efeitos adversos , Mortalidade Hospitalar , Humanos , Masculino , Pessoa de Meia-Idade , Anuloplastia da Valva Mitral/efeitos adversos , Anuloplastia da Valva Mitral/mortalidade , Seleção de Pacientes , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/mortalidade , Estudos Retrospectivos , Fatores de Tempo , Resultado do Tratamento , Turquia , Listas de Espera
8.
Transplant Proc ; 44(6): 1735-7, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22841258

RESUMO

BACKGROUND: Ventricular assist device (VAD) application has become an increasingly common method to treatment end-stage heart failure. In this study we evaluated the effect of VAD implantation upon the quality of life among Turkish patients with end-stage heart failure. METHODS: Twenty-eight VAD implantation patients included 3 (10.7%) with biventricular support using the Berlin Heart Excor; 15 (53.6%), left ventricular support with the Berlin Heart Excor; and 10 (35.7%), Heartware implantation for left ventricular support. The Minnesota Living with Heart Failure Questionnaire (MLHFQ) and Short Form 36 (SF-36) Health Questionnaire were used to assess changes in the quality of life (QOL). RESULTS: Of the 28 patients, 2 were females (7.1%) and 26 were males (92.9%) of overall mean age of 44.6 ± 15.3 years (range, 8-66). Preoperative mean score of MLHFQ was significantly improved at 200.4 ± 147.4 days follow-up (72.8 ± 11.5 vs 13.7 ± 10.5; P < .05). SF-36 physical scores and mental scores were improved postoperatively (physical scores, 20.0 ± 24.4 vs 70.2 ± 19.9; mental scores, 38.4 ± 18.8 vs 73.9 ± 15.7; P < .05). No significant relation was observed between the postoperative scores of questionnaires and type of surgery. More improvement in postoperative MLHFQ scores was seen in patients younger than 45 years of age (P = .027). The severity of chronic heart failure (CHF) regressed from New York Heart Association (NYHA) class IV to NYHA class II in 26 and to NYHA class III in 2 patients (P = .000). CONCLUSION: The QOL among patients with end-stage heart failure improved dramatically soon after VAD implantation.


Assuntos
Procedimentos Cirúrgicos Cardíacos/instrumentação , Insuficiência Cardíaca/cirurgia , Coração Auxiliar , Implantação de Prótese/instrumentação , Qualidade de Vida , Adolescente , Adulto , Idoso , Procedimentos Cirúrgicos Cardíacos/efeitos adversos , Criança , Feminino , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/fisiopatologia , Insuficiência Cardíaca/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Desenho de Prótese , Implantação de Prótese/efeitos adversos , Recuperação de Função Fisiológica , Índice de Gravidade de Doença , Inquéritos e Questionários , Fatores de Tempo , Resultado do Tratamento , Turquia , Função Ventricular Esquerda , Adulto Jovem
9.
Transplant Proc ; 44(6): 1726-8, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22841255

RESUMO

INTRODUCTION: Through the new developments in medicine, heart failure therapy has advanced to mechanical circulatory support systems. The HeartWare Ventricular Assist System HVAD; HeartWare, Inc.; Miramar, Fla, USA) is a new device that is a centrifugal, intracorporeal, miniaturized and continuous flow pump that serves simple patient use and enhanced life quality. This article reports the midterm results of patients who underwent the heartware support system. MATERIALS AND METHODS: We retrospectively compiled our data from December 2010, including 10 patients of mean age 51.8 years with 90% males, 70% of the overall patient cohort had dilated cardiomyopathy and remaining ones, ischemic disease. Mean left ventricular ejection fraction was 20.1% and mean systolic pulmonary artery pressure was 49.2 mm Hg. A single patient was grade 1; seven were grade 2; and remaining ones, grade 3 according to the INTERMACS (Interagency Registry for Mechanically Assisted Circulatory Support) scale. All patients were operated with cardiopulmonary bypass (CPB) with moderate hypothermia. Tricuspid ring annuloplasty was performed in 3 (30%) patients. In one patient we removed a left ventricular thrombus. In a case with severe aortic regurgitation, we placed a simple coaptation stitch at the central portion of the three aortic cusps under the aortic cross clamp. The mean CPB duration was 95.5 minutes. RESULTS: There was no operative or in-hospital mortality. Mean support time was 250.67 days. During the early postoperative period, one patient experienced a minor hemorrhagic neurological event also requiring a tracheostomy due to pneumonia. This patient has completely healed and on follow-up continues a normal life. All patients were asymptomatic regarding heart failure. One patient unfortunately died because of possible pancreatic cancer and sepsis. Two patients underwent transplantations on days 159 and 172 of support. CONCLUSION: The HVAD system provided effective circulatory support for patients with end-stage heart failure with low adverse event rates. Long-term results are needed particularly for destination therapy candidates.


Assuntos
Insuficiência Cardíaca/terapia , Coração Auxiliar , Adulto , Idoso , Pressão Arterial , Procedimentos Cirúrgicos Cardíacos , Feminino , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/fisiopatologia , Insuficiência Cardíaca/cirurgia , Transplante de Coração , Coração Auxiliar/efeitos adversos , Humanos , Masculino , Pessoa de Meia-Idade , Desenho de Prótese , Artéria Pulmonar/fisiopatologia , Estudos Retrospectivos , Índice de Gravidade de Doença , Volume Sistólico , Fatores de Tempo , Resultado do Tratamento , Turquia , Função Ventricular Esquerda
10.
Transplant Proc ; 43(3): 931-4, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21486631

RESUMO

BACKGROUND: The aim of this study was to assess the long-term efficacy of stem cell transplantation with revascularization for patients with ischemic cardiomyopathy. METHODS: We enrolled 17 patients with ischemic cardiomyopathy who had undergone autologous stem cell treatment. To assess myocardial ischemia and viability they underwent coronary angiography, stress tests with dobutamine, echocardiography, and positron emission tomography. Peripheral stem cells mobilized using granulocyte colony-stimulating factor (G-CSF) were collected by aphseresis for transplantation transmyocardially into the areas of injury during coronary artery bypass surgery to increase blood flow to the engrafted areas. RESULTS: Three patients died in the early follow-up period and 4 patients with cardiac failure died during mid-term follow-up; they all underwent stem cell transplantation at 6 months after acute myocardial infarction. The mean follow-up period of the remaining 10 patients was 85.8 ± 9.2 months (range, 70-100). Mean left ventricular ejection fraction improved to 30.0 ± 6.7, whereas the preoperative mean left ventricular ejection fraction of the surviving patients was 25.6 ± 4.5 (P = .035). Mean New York Heart Association (NYHA) functional class decreased from 3.2 to 1.5 (P = .006). When the study population was divided into 2 subgroups according to the interval between acute myocardial infraction and surgery, the patients who underwent autologous stem cell transplantation within the first 6 months after myocardial infraction (Group 1) showed significantly lower NYHA scores at the last follow-up (P = .024 in Group 1 and P = .102 in Group 2). No side effects were observed to be due to the stem cell or G-CSF injections. CONCLUSION: Treatment of ischemic cardiomyopathy with autologous stem cell transplantation is easy and safe, opening a new window in the treatment of "no hope" patients.


Assuntos
Insuficiência Cardíaca/cirurgia , Transplante de Células-Tronco Hematopoéticas , Ponte de Artéria Coronária , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade
11.
Int J Clin Pract ; 59(1): 69-71, 2005 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-15707468

RESUMO

Erythema nodosum (EN)-like lesions and superficial thrombophlebitis (ST) are skin symptoms that are frequently observed in Behcet's disease. In most of the patients, skin symptoms precede serious visceral involvement. The study included 78 patients whose mean age was 33.48 +/- 6.16 (21-48). Of the cases, 37 were females and 41 were males. Forty-two patients (53.8%) had EN-like lesion and 12 (15.3%) had ST. Six of 54 patients, who had EN-like lesion and ST, were found to have no visceral involvement. In six of the remaining 48 patients, it was established that visceral involvement developed before lesions. It was found in 42 patients that these two lesions preceded visceral involvement. In addition, 18 of 24 patients who did not have these two lesions, do not still have visceral involvement. Therefore, we think that EN-like lesion and ST can be guiding in predicting serious visceral involvement and complications that can develop in advanced stages of Behcet's disease.


Assuntos
Síndrome de Behçet/complicações , Eritema Nodoso/complicações , Tromboflebite/complicações , Adulto , Doenças do Sistema Nervoso Central/diagnóstico , Doenças do Sistema Nervoso Central/etiologia , Oftalmopatias/diagnóstico , Oftalmopatias/etiologia , Feminino , Gastroenteropatias/diagnóstico , Gastroenteropatias/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Doenças Torácicas/diagnóstico , Doenças Torácicas/etiologia
12.
J Eur Acad Dermatol Venereol ; 19(1): 87-9, 2005 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-15649198

RESUMO

We present a case of Reiter syndrome (RS) associated with Terry nail in a 32-year-old male patient who also had subungual keratosis and onycholysis. The case had all the characteristic findings of complete RS including urethritis, conjunctivitis, arthritis and skin lesions, and based on these findings a clinical diagnosis was established. The patient complained of milky-white coloured leakage that was more frequent in the mornings, and dysuria. Urinary analysis revealed leucocytes and erythrocytes. Erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) values were high. The case was considered as RS due to gonococcic urethritis. However, there was no growth in the culture. Self-report of the patient revealed that he had had continued symptoms and 9 months after the development of RS he developed Terry nail. To the best of our knowledge this is the first case of RS associated with Terry nail.


Assuntos
Artrite Reativa/diagnóstico , Doenças da Unha/diagnóstico , Adulto , Diagnóstico Diferencial , Humanos , Masculino
13.
Forensic Sci Int ; 133(1-2): 136-40, 2003 Apr 23.
Artigo em Inglês | MEDLINE | ID: mdl-12742701

RESUMO

Human serum paraoxonase (PON1) and perhaps other mammalian paraoxonases catalyzes the hydrolysis of certain organophosphorus (OP) insecticides and nerve gases and so may alter significantly an individual's susceptibility to the toxicity of these chemicals. Serum PON1 exhibits a substrate dependent polymorphism and this polymorphism shows great interethnic variability. This study focused on the investigation of PON1, arylesterase and cholinesterase activities in 28 acute OP insecticide poisoning cases. Insecticide analysis were performed by GC-NPD and activities of enzymes were measured by using spectrophotometer. The activity levels for salt stimulated PON1, basal PON1 and arylesterase were found as 78.83 (35.39-186.13), 39.97 (2.49-80.43) micromol/min/l and 126.26 (36.34-288.24) mmol/min/l respectively. On the other hand the activity levels for butyrylcholinesterase (BTC) and acetylcholinesterase (AchE) were found as 797.23 (106.3-3823)U/l and 4.65 (0.21-30.29)U/ml. There was a correlation between percent stimulation of PON1 and BTC activities (r=0.446, P<0.05), but this correlation was lower than in cases who exposed to OP insecticides chronically. As a conclusion, in chronic and acute OP exposure, both PON1 level and phenotype must be taken into consideration.


Assuntos
Esterases/metabolismo , Inseticidas/metabolismo , Inseticidas/intoxicação , Compostos Organofosforados , Adulto , Arildialquilfosfatase , Hidrolases de Éster Carboxílico/metabolismo , Colinesterases/metabolismo , Cromatografia Gasosa/métodos , Esterases/genética , Feminino , Humanos , Masculino , Fenótipo , Suicídio
14.
J Toxicol Environ Health A ; 58(8): 469-74, 1999 Dec 24.
Artigo em Inglês | MEDLINE | ID: mdl-10632139

RESUMO

Different kinds of organophosphorous compounds (OP) are used as pesticides in Turkish agriculture. Suicidal, accidental, or occupational exposure may occur in developing countries. OP inhibit acetylcholinesterase (AChE) activities; on the other hand, serum paraoxonase (PON1) hydrolyzes the toxic metabolites of a variety of OP. In recent years, some studies have shown that PON1 activity is an important marker in individuals who are exposed to OP. Both serum cholinesterase and PON1 activities were measured spectrophotometrically from 18 male agricultural workers who were chronically exposed to azinphos methyl, chlorpyriphos, or malathion and other pesticides during cereal spraying, transportation, and storage. The individuals were classified according to PON1 phenotypes using the antimode 60% stimulation method to determine the dividing point between non-salt-stimulated, A type (homozygotes for the low-activity allele), and salt-stimulated AB (heterozygotes) and B types (homozygotes for the high-activity allele). A positive correlation was found between AChE activities and percent of PON1 stimulation. The individuals with phenotype A had the lowest enzyme activities. This study suggests that individuals with phenotype A might be more sensitive to OP-induced toxicity.


Assuntos
Acetilcolinesterase/sangue , Esterases/sangue , Doenças Profissionais/etiologia , Exposição Ocupacional/efeitos adversos , Intoxicação por Organofosfatos , Praguicidas/intoxicação , Acetilcolinesterase/genética , Adulto , Arildialquilfosfatase , Eritrócitos/enzimologia , Esterases/genética , Humanos , Masculino , Pessoa de Meia-Idade , Compostos Organofosforados/sangue , Praguicidas/sangue , Fenótipo , Intoxicação/sangue , Intoxicação/enzimologia , Turquia , População Branca
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