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1.
J BUON ; 21(4): 826-831, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27685902

RESUMO

PURPOSE: Educational status may be an important parameter in assessing breast cancer risk and prognosis. The purpose of this study was to investigate the correlation between the level of education and clinicopathological characteristics of breast cancer, including tumor grade, HER-2 and estrogen receptor (ER) status, tumor size, axillary lymph node involvement and metastasis. METHODS: The study included 1800 women who were diagnosed with invasive breast cancer during 2005-2013 at Hacettepe University Cancer Institute. Patients were divided into three groups according to their educational status at the time of diagnosis as follows: low (illiterate and elementary school, 5 years or less of education), medium (secondary school and upper secondary school, 6-12 years of education) and high (university level, more than 12 years of education). The associations between educational status and clinicopathologic features of breast cancer at the time of diagnosis were evaluated. RESULTS: In all patient, a significant relationship was found between educational status and T stages (p<0.0001). Patients with higher educational levels were reported to have smaller tumor size regardless to their age and were less likely to have axillary lymph node involvement (p=0.001) or metastasis (p=0.001). A significant correlation was found between educational status and ER positivity in patients over 50 years of age (p=0.03). When the patients of all ages were evaluated, no statistically significant correlation was shown (p=0.27) between educational status and ER positivity. A significant relationship was found between educational status and HER-2 status (p=0.003), regardless of the patients' age. HER-2 positivity increased in patients with low educational status, however this significance was lost in patients over the age of 50 (p=0.1). CONCLUSION: The relationship between educational status and biological factors in breast cancer are not conclusive as yet, but this particular study revealed that educational status played a major influence in each of the five breast cancer prognostic factors: ER status, HER-2 status, tumor size, lymph node status and metastasis.


Assuntos
Neoplasias da Mama/etiologia , Neoplasias da Mama/patologia , Neoplasias da Mama/metabolismo , Escolaridade , Feminino , Humanos , Linfonodos/metabolismo , Linfonodos/patologia , Metástase Linfática/patologia , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Receptor ErbB-2/metabolismo , Receptores de Estrogênio/metabolismo , Risco
2.
Tumour Biol ; 36(6): 4427-32, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25604143

RESUMO

Breast cancer is the most common malignancy predominantly affecting women. To date, numerous numbers of studies were reported novel genetic contributors with diagnostic, prognostic, and therapeutic potential for the breast carcinogenesis. However, the role of urotensin-II in breast carcinogenesis has not been elucidated yet. Urotensin-II is a somatostatin-like cyclic tiny peptide identified by its potent vasoconstrictor activity. Soon after its discovery, its involvement in many disease states as well as its expression in various tissues including the tumors have been demonstrated. Moreover, there is strong evidence that suggest urotensin-II as the significant contributor of angiogenesis as well as cell proliferation and tumor biology. In this study, enzyme-linked immunosorbent assay (ELISA) and restriction fragment length polymorphism analysis were used to evaluate plasma levels of urotensin-II and Thr21Met and Ser89Asn polymorphisms of UTS2 gene in breast cancer patients. In the present case-control study, we noticed a significant decrease in the levels of urotensin-II protein in the plasma of the breast cancer patients (p < 0.05). Also, Thr21Met polymorphism in the UTS2 gene was associated with the risk of developing breast cancer (p < 0.0001), whereas the genotype frequency of Ser89Asn was found to be similar in patients and controls (p > 0.05). In addition, we demonstrated the gradual decreasing of urotensin-II protein levels from TT and TM to MM genotypes. In conclusion, these results strongly suggest that urotensin-II could contribute to breast carcinogenesis and Thr21Met polymorphism can be an important risk factor in developing breast tumors.


Assuntos
Neoplasias da Mama/genética , Carcinogênese/genética , Urotensinas/genética , Adulto , Neoplasias da Mama/sangue , Neoplasias da Mama/patologia , Ensaio de Imunoadsorção Enzimática , Feminino , Estudos de Associação Genética , Predisposição Genética para Doença , Humanos , Pessoa de Meia-Idade , Fatores de Risco , Urotensinas/sangue
3.
J BUON ; 20(2): 479-86, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26011339

RESUMO

INTRODUCTION: In lymph node-negative, hormone-positive, and Her2-negative breast cancer patients, the benefits of adding adjuvant chemotherapy to hormonal therapy continue to be debated, especially for low to intermediate grade and small tumors. METHODS: Excluding patients with T4 disease, we retrospectively reviewed the records of patients with long-term follow-up at our center between 2003 and 2014. Among node-negative, hormone-positive and HER2-negative breast cancer patients, we compared two groups of patients: those given both chemotherapy (doxorubicin+cyclophosphamide) and hormonotherapy, and those prescribed hormonotherapy alone. The primary endpoints were progression-free (PFS) and overall survival (OS). RESULTS: Overall, no difference was observed between these two treatment groups in either DFS or OS. However, for both outcomes, there was a trend towards improved DFS and OS favoring the hormone-only group. CONCLUSIONS: In selected subgroups of breast cancer patients, administering adjuvant hormonal therapy alone seems to be at least as good if not better than combining hormonotherapy and chemotherapy.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Receptor ErbB-2/análise , Adulto , Neoplasias da Mama/química , Neoplasias da Mama/mortalidade , Neoplasias da Mama/patologia , Feminino , Humanos , Metástase Linfática , Pessoa de Meia-Idade , Invasividade Neoplásica , Estadiamento de Neoplasias , Receptores de Estrogênio/análise , Estudos Retrospectivos
4.
J BUON ; 20(1): 22-7, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25778291

RESUMO

PURPOSE: To compare the effectiveness of adjuvant chemotherapy regimens in triple negative breast cancer (TNBC) for which no protocol has been determined to be treatment of choice. METHODS: In this single-center retrospective trial, we analyzed the adjuvant regimens of 164 TNBC patients among 3253 breast cancer patient records. Adjuvant TAC (docetaxel, doxorubicin, cyclophosphamide), CAF (cyclophosphamide, doxorubicin, 5fluorouracil), and AC-T (doxorubicin, cyclophosphamide followed by docetaxel) regimens were compared in terms of disease free survival (DFS) and overall survival (OS). RESULTS: In terms of both DFS and OS TAC was significantly superior to AC-T in node positive TNBC. When node negative and positive patients were analyzed together, TAC was still significantly superior to AC-T in terms of DFS and OS. There was a trend favoring CAF over AC-T, however, it was only significant in terms of OS when all node negative and positive TNBC patients were incorporated together. CONCLUSION: In the adjuvant setting, especially in node positive patients, TAC should be the treatment of choice in TNBC patients. CAF is probably better than AC-T in TNBC.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias de Mama Triplo Negativas/tratamento farmacológico , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Quimioterapia Adjuvante , Ciclofosfamida/administração & dosagem , Intervalo Livre de Doença , Docetaxel , Doxorrubicina/administração & dosagem , Feminino , Fluoruracila/administração & dosagem , Humanos , Estimativa de Kaplan-Meier , Metástase Linfática , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Seleção de Pacientes , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Taxoides/administração & dosagem , Fatores de Tempo , Resultado do Tratamento , Neoplasias de Mama Triplo Negativas/química , Neoplasias de Mama Triplo Negativas/mortalidade , Neoplasias de Mama Triplo Negativas/patologia , Turquia
5.
J Phys Ther Sci ; 26(9): 1405-9, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25276024

RESUMO

[Purpose] To evaluate the oxidative stress parameters and urinary deoxypyridinoline levels in geriatric patients with osteoporosis. [Subjects and Methods] Eighty geriatric patients aged over 65 years were recruited. Patients were divided into two groups: Group 1 (n=40) consisted of patients with osteoporosis, and Group 2 (n=40) consisted of patients without osteoporosis. Bone mineral density measurements were performed for all patients using DEXA. Oxidative stress parameters were analyzed in blood samples, and deoxypyridinoline levels were analyzed in 24-hour urinary samples. [Results] Compared to Group 2, the total antioxidant status and oxidative stress index levels of Group 1 were not significantly different; however, total oxidant status and 24-hour urinary deoxypyridinoline levels were significantly higher. Pearson correlation coefficients indicated that OSI and urinary deoxypyridinoline levels were not correlated with any biochemical parameters. ROC-curve analysis revealed that urinary deoxypyridinoline levels over 30.80 mg/ml predicted osteoporosis with 67% sensitivity and 68% specificity (area under the curve = 0.734; %95 CI: 0.624-0.844). [Conclusion] Our results indicate that oxidative stress would play a role in the pathogenesis of osteoporosis, and that urinary deoxypyridinoline levels may be a useful screening test for osteoporosis.

6.
J Res Med Sci ; 18(3): 205-9, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23930116

RESUMO

BACKGROUND: Contrast induced kidney injury is an acute renal dysfunction that is secondary to the administration of radio contrast media. The purpose of this study was to evaluate the levels of urotensin-II (UT-II) and endothelin-I (ET-I) after contrast media administration in patients undergoing percutaneous coronary interventions. MATERIALS AND METHODS: In this prospective cohort study, we evaluated 78 patients with coronary artery disease who were scheduled for and ultimately underwent percutaneous coronary interventions. As a contrast material, nonionic contrast media was used in various amounts (70-480 mL). Blood and urine samples were obtained to measure U-II, ET-I just before and at the twenty-fourth hour of percutaneous coronary interventions. RESULTS: Compared to baseline, twenty-fourth hour creatinine levels were significantly increased (P < 0.001). The twenty-fourth hour serum and urine levels of both UT-II and ET-I were also significantly increased compared to baseline (P < 0.001 for all) and 24(th) hour serum and urine UT-II (r = 0.322, P = 0.004; r = 0.302, P = 0.007 respectively), ET-I (r = 0.511, P < 0.001; r = 0.266, P = 0.019 respectively) levels were significantly correlated with the amount of contrast media. CONCLUSION: Our study indicates that; increased UT-II and ET-I levels seem to be a consequence of hazardous effects of contrast media on blood vessels and the kidney.

7.
Rev Esc Enferm USP ; 47(2): 471-6, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23743917

RESUMO

The aim of this study was to evaluate the oxidative stress and metabolic activities of nurses working day and night shifts. Intensive care unit (ICU) (n=70) and ordinary service (OS) nurses (n=70) were enrolled in the study. Just before and the end of the shifts, blood samples were obtained to measure the participants' oxidative stress parameters. Metabolic activities were analyzed using the SenseWear Armband. Oxidative stress parameters were increased at the end of the shifts for all OS and ICU nurses compared to the beginning of the shifts. Compared to the OS nurses, the ICU nurses' TAS, TOS, and OSI levels were not significantly different at the end of the day and night shifts. The metabolic activities of the OS and ICU nurses were found to be similar. As a result, the OS and ICU nurses' oxidative stress parameters and metabolic activities were not different, and all of the nurses experienced similar effects from both the day and night shifts.


Assuntos
Enfermagem , Estresse Oxidativo , Tolerância ao Trabalho Programado/fisiologia , Adulto , Feminino , Humanos , Unidades de Terapia Intensiva , Masculino , Estudos Prospectivos
8.
Clin Invest Med ; 35(3): E126-31, 2012 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-22673315

RESUMO

PURPOSE: The aim of the present study was to evaluate the average sleeping energy expenditure (EE) levels using the SenseWear Armband (SWA) in patients with overt and subclinical hypothyroidism. METHODS: Sixty patients with hypothyroidism and 30 healthy individuals were recruited for the study. Hypothyroid patients were divided into two groups: group 1 (n = 30) consisted of patients with overt hypothyroidism and group 2 (n = 30) consisted of patients with subclinical hypothyroidism. Lastly, group 3 (n = 30) consisted of healthy subjects. The average EE and metabolic equivalent of task (MET) values during sleep of all the hypothyroid participants were analyzed at baseline and at the end of the study. Data were also obtained from the healthy subjects at baseline. RESULTS: The average sleeping EE and METs values were not significantly different at baseline. Similarly, these values did not change significantly after achieving a euthyroid state via thyroid hormone replacement (both p > 0.05). CONCLUSIONS: Contrary to what has been previously reported , the average sleeping EE and METs values in all hypothyroid patients and healthy individuals were similar at baseline and did not change in the patients with overt and subclinical hypothyroidism after achievement of a euthyroid state.


Assuntos
Braço , Metabolismo Energético/fisiologia , Hipotireoidismo/fisiopatologia , Monitorização Ambulatorial/instrumentação , Sono/fisiologia , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Hipotireoidismo/tratamento farmacológico , Masculino , Hormônios Tireóideos/sangue , Hormônios Tireóideos/uso terapêutico
9.
Clin Exp Hypertens ; 34(2): 145-52, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-21967026

RESUMO

Regulation of the fibrinolytic balance between plasminogen activators and inhibitors is modulated by the renin-angiotensin system (RAS). Impaired fibrinolytic function, characterized by increased plasminogen activator inhibitor type 1 (PAI-1) levels and decreased tissue plasminogen activator (t-PA) activity, has been found in patients with hypertension and may account in part for the increased risk of atherosclerosis and its clinical complications in these patients. In this regard, data from the literature indicate that different antihypertensive drugs may vary in their influence on fibrinolysis. Angiotensin-converting enzyme (ACE) inhibitors (ACE-I) have generally been shown to improve the fibrinolytic balance by reducing plasma PAI-1 levels. Calcium-channel blockers (CCB) have been reported to increase t-PA activity, and angiotensin receptor blockers (ARB) seem to be neutral in their effect. In the light of these data, this study aimed to compare the effects of ACE-I, ARB, and CCB on the fibrinolytic system in the early and late stages of the treatment in hypertensive patients. These data that the beneficial effect of RAS inhibition on fibrinolysis related to decrease in Ang II during early period of treatment. Amlodipine may also improve thrombogenic risk related to lowering the effect on increased platelet activation reflected by p-selectin. The greater improvement in the early and late stages of the fibrinolytic balance because of the combined action of RAS inhibition and Ca antagonism represents a further indication to the use of combinations of RAS inhibition (ACE-I or ARB) and CCB in the treatment of hypertension.


Assuntos
Anlodipino/uso terapêutico , Compostos de Bifenilo/uso terapêutico , Hipertensão/tratamento farmacológico , Lisinopril/uso terapêutico , Tetrazóis/uso terapêutico , Adulto , Idoso , Anlodipino/administração & dosagem , Bloqueadores do Receptor Tipo 1 de Angiotensina II/administração & dosagem , Bloqueadores do Receptor Tipo 1 de Angiotensina II/uso terapêutico , Inibidores da Enzima Conversora de Angiotensina/administração & dosagem , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Anti-Hipertensivos/administração & dosagem , Anti-Hipertensivos/uso terapêutico , Compostos de Bifenilo/administração & dosagem , Pressão Sanguínea/efeitos dos fármacos , Bloqueadores dos Canais de Cálcio/administração & dosagem , Bloqueadores dos Canais de Cálcio/uso terapêutico , Estudos de Casos e Controles , Endotélio Vascular/efeitos dos fármacos , Endotélio Vascular/fisiopatologia , Feminino , Fibrinólise/efeitos dos fármacos , Humanos , Hipertensão/sangue , Hipertensão/fisiopatologia , Irbesartana , Lisinopril/administração & dosagem , Masculino , Pessoa de Meia-Idade , Inibidor 1 de Ativador de Plasminogênio/sangue , Sistema Renina-Angiotensina/efeitos dos fármacos , Sistema Renina-Angiotensina/fisiologia , Tetrazóis/administração & dosagem
10.
J Res Med Sci ; 17(11): 1086-8, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23833587

RESUMO

Helicobacter pylori (H. pylori) are one of the most common bacterial infections, seen in humans, worldwide and their possible relationships to different diseases are a focus of attention nowadays. H. pylori may cause some extra intestinal manifestations some of which are dermatological conditions, including Henoch-Schönlein purpura (HSP), chronic urticaria and atopic dermatitis. We describe a 49-year-old man who presented with HSP triggered by gastric H. pylori infection. Treatment of H. Pylori infection was accompanied by prompt resolution of the gastrointestinal manifestations and purpuric rashes. These findings suggest a causative role for H. pylori in the occurrence of HSP.

11.
Clin Endocrinol (Oxf) ; 74(1): 118-24, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21044110

RESUMO

BACKGROUND: Recent evidence has shown that oxidative stress may play a role in the pathogenesis of autoimmune diseases, and this is an issue of considerable research interest in the field of infiltrative ophthalmopathy. Therefore, we evaluated both the relationship between Graves' ophthalmopathy (GO) and serum levels of certain indicators of oxidative stress, and the effects of methylprednisolone treatment on serum malondialdehyde (MDA) and glutathione (GSH) levels in patients with euthyroid GO. MATERIALS AND METHODS: We compared GO patients to both Graves' patients without ophthalmopathy and healthy controls. Ultimately, we assessed four subject groups. Graves' patients with ophthalmopathy (GO) were subcategorized into two groups: Group A subjects (n = 18) were given intravenous glucocorticoid and Group B patients (n = 15) were given oral glucocorticoid. Graves' patients without ophthalmopathy comprised Group C (n = 20), and healthy controls comprised Group D (n = 15). Serum levels of MDA and GSH were measured at baseline and after 4 and 24 weeks of observation via spectrophotometric methods. RESULTS: We found that serum MDA levels were significantly higher in the two GO groups (Groups A and B) than in GO patients without ophthalmopathy or healthy controls. Conversely, GSH levels were significantly lower in the two GO groups than in Groups C and D. MDA and GSH levels were not different between the latter two groups. MDA levels were strongly and positively correlated with a clinical activity score (CAS). In Group A, MDA levels and the CAS were significantly lower than in Group B at 4 weeks. After 24 weeks, however, MDA levels and the CAS were similar in these two groups. CONCLUSION: Oxidative stress appears to be involved in the pathophysiology of GO. Relative to oral dosing, the intravenous administration of a glucocorticoid seems to yield more rapid improvement in disease activity. MDA might be useful as an indicator of clinical activity.


Assuntos
Anti-Inflamatórios/imunologia , Oftalmopatia de Graves/sangue , Oftalmopatia de Graves/tratamento farmacológico , Metilprednisolona/uso terapêutico , Estresse Oxidativo/efeitos dos fármacos , Adulto , Anti-Inflamatórios/uso terapêutico , Feminino , Glutationa/sangue , Humanos , Iodeto Peroxidase/imunologia , Masculino , Malondialdeído/sangue , Metilprednisolona/administração & dosagem , Tireotropina/sangue , Tiroxina/sangue , Tri-Iodotironina/sangue , Adulto Jovem
12.
J Surg Res ; 166(2): 330-6, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20006352

RESUMO

BACKGROUND: Peripheral nerve damage that requires surgical repair does not result in complete recovery because of collagen scar formation, ischemia, free oxygen radical damage, and other factors. To date, the best treatment method has not yet been determined. In this study, we designed an experimental peripheral nerve injury model, and researched the possible effects of melatonin hormone, based on evidence of its strong antioxidant and cell-protective effects via mimicking the effects of calcium channel blockers. MATERIALS AND METHODS: We randomized 24 healthy female albino rats into three groups: the pinealectomy group, melatonin group, and control group. In the pinealectomy group, craniotomy, pinealectomy, sciatic nerve transection, and coaptation were performed, and 0.9% NaCl was injected intraperitoneally. In the melatonin group, craniotomy (without pinealectomy), sciatic nerve dissection, and coaptation were performed, and melatonin was injected intraperitoneally, instead of NaCl. In the control group, craniotomy (without pinealectomy), sciatic nerve dissection and coaptation, and intraperitoneal NaCl injection were performed. In each group, nerve recovery was evaluated histologically, functionally, and electrophysiologically. Functional and electrophysiologic evaluations were conducted before surgery and at 4 and 12 wk. RESULTS: At 4 wk, no significant difference was observed between the groups. However, at 12 wk, significant electrophysiologic and functional improvement was observed only in the melatonin group. CONCLUSIONS: Melatonin seems to have a beneficial effect on nerve recovery. However, this effect is not effective at physiologic doses. Future comparative studies with melatonin versus other nerve-regenerating agents are necessary to determine the clinical utility of melatonin hormone.


Assuntos
Antioxidantes/farmacologia , Colágeno/metabolismo , Melatonina/farmacologia , Regeneração Nervosa/efeitos dos fármacos , Neuropatia Ciática/tratamento farmacológico , Potenciais de Ação/efeitos dos fármacos , Animais , Modelos Animais de Doenças , Feminino , Atividade Motora/efeitos dos fármacos , Degeneração Neural/tratamento farmacológico , Degeneração Neural/patologia , Degeneração Neural/fisiopatologia , Regeneração Nervosa/fisiologia , Glândula Pineal/cirurgia , Ratos , Ratos Endogâmicos , Recuperação de Função Fisiológica/efeitos dos fármacos , Nervo Isquiático/efeitos dos fármacos , Nervo Isquiático/metabolismo , Nervo Isquiático/patologia , Neuropatia Ciática/patologia , Neuropatia Ciática/fisiopatologia
13.
Clin Invest Med ; 33(5): E313-20, 2010 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-20926038

RESUMO

PURPOSE: Oxidative damage plays an important role in atherosclerosis development. Statin drugs have anti-oxidant properties, but the clinical value of their antioxidant properties remains unclear. In this study, our aims were: (1) to assess the anti-oxidant effects of statins in patients with coronary artery disease (CAD) using a newly developed valid measure of total oxidant and anti-oxidant capacity; and (2) to identify whether statins influence ceruloplamin levels. METHODS: Within a cross-sectional study, 67 dyslipidemic CAD patients on atorvastatin for at least three months were compared with 69 age- and gender-matched CAD patients not using atorvastatin. All patients were either newly-diagnosed with or already had established CAD. Patients and controls were selected from among patients who had undergone coronary angiography for a variety of reasons. Immediately prior to angiography, plasma total oxidant and antioxidant capacity and ceruloplasmin (Cp) levels were measured by means of a relatively new and highly-reliable method. RESULTS: Total oxidant capacity levels were significantly lower and total antioxidant capacity significantly higher in those on atorvastatin; serum seruloplasmin levels also were significanly increased in the atorvastatin groups (all p < 0.05). On multivariate analysis, atorvastatin use was a significant determinant of Cp increase, independent of any antioxidant effect. CONCLUSIONS: This study clearly demonstrates increased anti-oxidant capacity and decreased oxidative stress with statin use. Atorvastatin use may also increase Cp levels although this effect appears to be independent of its anti-oxidant effects.


Assuntos
Antioxidantes/metabolismo , Ceruloplasmina/metabolismo , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Oxidantes/sangue , Idoso , Atorvastatina , Angiografia Coronária , Doença da Artéria Coronariana/sangue , Doença da Artéria Coronariana/tratamento farmacológico , Estudos Transversais , Dislipidemias/sangue , Dislipidemias/tratamento farmacológico , Dislipidemias/metabolismo , Feminino , Ácidos Heptanoicos/uso terapêutico , Humanos , Masculino , Pessoa de Meia-Idade , Pirróis/uso terapêutico
14.
Nephrology (Carlton) ; 15(2): 211-5, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20470281

RESUMO

AIM: A possible link between the renin-angiotensin-aldosterone system (RAAS) and fibrinolysis has recently been suggested. Systemic infusion of angiotensin II results in an increase in plasminogen activator inhibitor type 1 (PAI-1) levels and angiotensin-converting enzyme inhibitors (ACEI) have been shown to decrease PAI-1 levels. Moreover, recent data indicated that plasma aldosterone levels were positively correlated with plasma PAI-1 levels. This study was designed to compare the effects of an ACEI with an ACEI in combination with an aldosterone antagonist on PAI-1 levels in chronic hypertensive patients. METHODS: Patients were randomized into two groups and were treated with either low salt diet plus fosinopril (group 1, n = 43) or low salt diet plus fosinopril plus spironolactone (group 2, n = 42). Plasma PAI-1, tissue plasminogen activator (tPA) and plasma renin activity (PRA) levels were measured before and after 24 week treatment in both groups. RESULTS: The mean basal PRA levels were similar in both groups. After antihypertensive therapy, the mean PRA increased significantly in both groups (P < 0.005). The mean plasma PAI-1 levels were reduced in both treatment groups (P < 0.005). However, the reduction in group 2 was more pronounced (P < 0.05). Although after the treatment mean plasma levels of PAI-1 significantly reduced in both groups, the reduction of PAI-1 levels was more pronounced in group 2. CONCLUSION: Although the plasma levels of PAI-1 significantly reduced after treatment in both groups, the reduction of PAI-1 levels was more pronounced in group 2. These data indicated that administration of aldosterone antagonists in combination with ACEI had additional benefit on fibrinolysis in chronic hypertensive patients.


Assuntos
Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Anti-Hipertensivos/uso terapêutico , Fosinopril/uso terapêutico , Hipertensão/tratamento farmacológico , Antagonistas de Receptores de Mineralocorticoides/uso terapêutico , Inibidor 1 de Ativador de Plasminogênio/sangue , Espironolactona/uso terapêutico , Adulto , Biomarcadores/sangue , Doença Crônica , Dieta Hipossódica , Regulação para Baixo , Quimioterapia Combinada , Feminino , Fibrinólise/efeitos dos fármacos , Humanos , Hipertensão/sangue , Hipertensão/fisiopatologia , Masculino , Pessoa de Meia-Idade , Renina/sangue , Fatores de Tempo , Ativador de Plasminogênio Tecidual/sangue , Resultado do Tratamento
15.
J Clin Lab Anal ; 24(4): 213-8, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20626024

RESUMO

Idiopathic and ischemic dilated cardiomyopathies (DCM) are the most common types of DCM, and both exhibit the same histopathological feature of fibrosis. Prolidase is an enzyme that serves a rate-limiting function in collagen turnover. Several studies have shown increased prolidase activity in fibrosis, though controversy persists. In this study, we measured prolidase enzyme activity in patients with idiopathic or ischemic DCM and in healthy controls, making this, to our knowledge, the first study to do so. What we found is that serumprolidase activity was significantly lower in both DCM groups relative to healthy volunteers and lower in ischemic DCM than idiopathic. These intriguing results could be attributed either to decreased collagen turnover in the heart tissues in which DCM develops, a result of diminished functional heart tissue, or to decreased physical activity levels among DCM patients stemming from their heart failure. Either way, further studies are needed to verify and clarify our results.


Assuntos
Cardiomiopatia Dilatada/enzimologia , Dipeptidases/sangue , Isquemia Miocárdica/enzimologia , Análise de Variância , Estudos de Casos e Controles , Eletrocardiografia , Feminino , Humanos , Modelos Lineares , Masculino , Pessoa de Meia-Idade
16.
Clin Exp Hypertens ; 32(6): 347-51, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-21028997

RESUMO

In this study, we primarily aimed to identify the acute effects of hypertension on fibrinolytic function in previously untreated urgent hypertensive patients and to evaluate the influence of two commonly used, short-acting, anti-hypertensive agents, captopril and nifedipine, in these patients. Patient groups were selected homogeneously, i.e., only previously untreated patients amidst an urgent hypertensive episode and having no co-morbid disease were included-and randomly assigned to receive either captopril or nifedipine for immediate management. These two treatment groups were matched for age, gender, and mean arterial blood pressure. Study results demonstrated that lowering blood pressure with either agent improved fibrinolytic function; however, in those patients given captopril, this beneficial effect was more prominent, providing evidence supporting the preferential use of short-acting, angiotensin-converting enzyme (ACE) inhibitors in this setting.


Assuntos
Anti-Hipertensivos/administração & dosagem , Captopril/administração & dosagem , Fibrinólise/efeitos dos fármacos , Hipertensão/tratamento farmacológico , Nifedipino/administração & dosagem , Selectina-P/metabolismo , Inibidor 1 de Ativador de Plasminogênio/metabolismo , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
17.
South Med J ; 103(11): 1184-5, 2010 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-20859249

RESUMO

Chronic myocardial ischemia often presents with a fairly typical history, but patients can present with atypical chest pain or pain referred to a less-typical location like the jaw, stomach, or back. Sometimes patients describe symptoms usually not attributed to heart disease, like indigestion or feeling cold and clammy, in the presence or absence of chest pain. One important clue to underlying coronary artery disease is the appearance of symptoms that are induced by effort and relieved by rest. This paper describes two unusual presentations of myocardial ischemia in patients whose main symptom was hiccups, the first intractable hiccups over months and the second effort-induced hiccups. Both also described atypical chest pain.


Assuntos
Soluço/etiologia , Isquemia Miocárdica/complicações , Idoso , Angioplastia Coronária com Balão , Dor no Peito/etiologia , Angiografia Coronária , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Isquemia Miocárdica/induzido quimicamente , Isquemia Miocárdica/terapia
18.
Ren Fail ; 32(5): 633-5, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20486848

RESUMO

Among the lipid-lowering drugs, the statins and fibrates are the most commonly used agents. Either class of drug is considered relatively safe. Though a variety of albeit uncommon adverse side effects have been observed with both classes, most of these therapeutic complications can be managed without discontinuation of the offending drug. Sometimes, especially in patients with extremely high cholesterol and/or triglyceride levels, a combination regimen is deemed necessary. However, the combined use of lipid-lowering drugs increases the incidence and severity of adverse events. In this article, we report an unusual case of acute renal failure (ARF) in a patient who had been prescribed both a statin (rosuvastatin) and a fibrate (fenofibrate).


Assuntos
Injúria Renal Aguda/induzido quimicamente , Fenofibrato/efeitos adversos , Fluorbenzenos/efeitos adversos , Inibidores de Hidroximetilglutaril-CoA Redutases/efeitos adversos , Hipolipemiantes/efeitos adversos , Pirimidinas/efeitos adversos , Sulfonamidas/efeitos adversos , Adulto , Interações Medicamentosas , Feminino , Humanos , Rosuvastatina Cálcica
19.
Artigo em Inglês | MEDLINE | ID: mdl-31889481

RESUMO

OBJECTIVE: The primary objective of this study was to compare oxidative DNA damage markers, apoptosis markers and changes in miRNA levels in patients diagnosed with cancer and treated through chemotherapy. Our secondary objective was also to evaluate tumor responses that can be determined after post-chemotherapy clinical evaluations by physical examinations, laboratory results and radiological imagings, and to compare the clinical results to oxidative stress and apoptosis markers and micro RNA levels. MATERIALS AND METHODS: To do that we designed a prospective observational cross-sectional study. A total of 34 cancer patients and 27 healthy controls were included in the study from the Harran University School of Medicine Department of Oncology. Newly diagnosed chemotherapy or radiotherapy naive patients without any chronic diseases were included into the study. Patients with a poor performance status (ECOG 2 and 3) and patients who did not meet the inclusion criteria were excluded. The cancer patients received chemotherapy according to their scheduled periods. Blood samples were taken from the patients before the first chemotherapy course and before the second chemotherapy round. Patients were called for toxicity control on the 10th day after the chemotherapy. Pre-chemotherapy, post-chemotherapy and control group miR-29a expression levels, change in apoptosis markers and oxidative DNA damage markers were obtained and compared. We studied 8-hydroxy 2-deoxyguanosine, total oxidant status, total anti-oxidant status, and oxidative status index for oxidative stress markers. We studied M30 and M65 as apoptosis markers. Clinical results of efficiency of the chemotherapy was acquired and compared to biochemical markers based on chemotherapy results. Chemotherapy toxicities were recorded. RESULTS: As a result, we found oxidative DNA damage markers and apoptosis markers were high in the cancer group, demonstrating that oxidative DNA damage and apoptosis might play a direct or indirect role in cancer etiology. However, there were subtle differences between pre-chemotherapy and post-chemotherapy levels. Mir-29a expressions were lower in cancer patients as compared to controls. However, the expression levels were not significantly change in pre- and postchemotherapy status. Moreover, we found no relationship between clinical status of patients (progression and regression) and studied biochemical markers. CONCLUSION: Thus, checking for DNA damage markers and taking precautions to lower the levels of these markers in individuals with cancer risk may be helpful in preventing cancer.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/farmacologia , Apoptose/efeitos dos fármacos , Biomarcadores Tumorais/análise , MicroRNAs/análise , Neoplasias/tratamento farmacológico , Estresse Oxidativo/efeitos dos fármacos , Biomarcadores Tumorais/genética , Estudos Transversais , Dano ao DNA/efeitos dos fármacos , Relação Dose-Resposta a Droga , Feminino , Humanos , Masculino , MicroRNAs/genética , Pessoa de Meia-Idade , Neoplasias/diagnóstico , Estudos Prospectivos
20.
Med Oncol ; 26(2): 242-6, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-18937081

RESUMO

In this paper, we report a rare case of a 29-year-old boy who presented with papillary meningioma originating from the posterior fossa meninges. After a long, disease-free period, however, spinal drop metastases occurred 32 months after resection of the primary tumor. The primary and metastatic lesions had a similar histological appearance, meaning that multiple spinal metastatic lesions occurred through CSF route even after a gross total resection of the tumor. Tumor seeding during surgery is the evident reason for spinal metastasis, although we strictly adhered to the standard precautions for operations for malignant tumors such as obstruction of the cisterna magna with cotton paddies, and changing surgical gloves and instruments during the operation. In this report, we briefly discuss an exceedingly rare variant of meningioma, the papillary variant, and suggest a new approach, a CSF sampling, in the management of both malignant and benign meningiomas. CSF sampling allows for the early detection of metastasis and of tumor cells before metastasis has occurred, thus allowing treatment to begin as soon as possible. This early detection and management is possibly associated with longer survival. Furthermore, we discussed that meningiomas are tumors that are not as benign as initially thought.


Assuntos
Neoplasias Meníngeas/patologia , Meningioma/secundário , Neoplasias da Medula Espinal/secundário , Adulto , Líquido Cefalorraquidiano/citologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Neoplasias Meníngeas/líquido cefalorraquidiano , Meningioma/líquido cefalorraquidiano , Meningioma/patologia , Neoplasias da Medula Espinal/líquido cefalorraquidiano , Neoplasias da Medula Espinal/patologia
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