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1.
Rev. Assoc. Med. Bras. (1992, Impr.) ; 70(1): e20230984, 2024. tab
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1529369

RESUMO

SUMMARY OBJECTIVE: In this study, we aimed to elucidate fibrosis in patients who visited our outpatient clinic with complaints such as abdominal pain and dyspepsia and who had fatty liver by ultrasound imaging. METHODS: A total of 119 patients who were admitted to the gastroenterology outpatient clinic of our institution with incidentally detected hepatosteatosis on ultrasound imaging were included in the study. Patients with hepatosteatosis were examined for fibrosis with the FibroScan-502-touch (Echosens, Paris, France) elastic tissue ultrasonography device. The effects of these parameters on hepatosteatosis and possible fibrosis degree were investigated. RESULTS: No fibrosis was detected in 75 (63.02%) patients with hepatosteatosis on ultrasound imaging, 20 (10.05%) F1, 22 (18.48%) F2, 1 (0.8%) F3, and 0.1 (0.8%) F4. Accordingly, as the degree of steatosis increases in patients with incidentally detected hepatosteatosis, the degree and frequency of fibrosis increase with statistical significance (p<0.05). A statistically significant difference was found between the alanine transaminase increase and the hepatosteatosis degree (p=0.028). The median value of gamma-glutamyltransferase was 15 U/L in S0, 18.5 U/L in S1, 22 U/L in S2, and 26 U/L in S3 (p<0.047). CONCLUSION: To date, no research exists on fibrosis in patients with incidental hepatosteatosis. The outcomes of this study elaborated that patients with hepatosteatosis in the community could be detected at least at an early stage by following up and diagnosing them with serum markers before they progress to end-stage fibrosis.

2.
Rev Assoc Med Bras (1992) ; 70(1): e20230984, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38126451

RESUMO

OBJECTIVE: In this study, we aimed to elucidate fibrosis in patients who visited our outpatient clinic with complaints such as abdominal pain and dyspepsia and who had fatty liver by ultrasound imaging. METHODS: A total of 119 patients who were admitted to the gastroenterology outpatient clinic of our institution with incidentally detected hepatosteatosis on ultrasound imaging were included in the study. Patients with hepatosteatosis were examined for fibrosis with the FibroScan-502-touch (Echosens, Paris, France) elastic tissue ultrasonography device. The effects of these parameters on hepatosteatosis and possible fibrosis degree were investigated. RESULTS: No fibrosis was detected in 75 (63.02%) patients with hepatosteatosis on ultrasound imaging, 20 (10.05%) F1, 22 (18.48%) F2, 1 (0.8%) F3, and 0.1 (0.8%) F4. Accordingly, as the degree of steatosis increases in patients with incidentally detected hepatosteatosis, the degree and frequency of fibrosis increase with statistical significance (p<0.05). A statistically significant difference was found between the alanine transaminase increase and the hepatosteatosis degree (p=0.028). The median value of gamma-glutamyltransferase was 15 U/L in S0, 18.5 U/L in S1, 22 U/L in S2, and 26 U/L in S3 (p<0.047). CONCLUSION: To date, no research exists on fibrosis in patients with incidental hepatosteatosis. The outcomes of this study elaborated that patients with hepatosteatosis in the community could be detected at least at an early stage by following up and diagnosing them with serum markers before they progress to end-stage fibrosis.


Assuntos
Técnicas de Imagem por Elasticidade , Cirrose Hepática , Humanos , Cirrose Hepática/complicações , Cirrose Hepática/diagnóstico por imagem , Técnicas de Imagem por Elasticidade/métodos , Ultrassonografia
3.
Turk J Gastroenterol ; 34(3): 254-261, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36635913

RESUMO

BACKGROUND: The aim of this study was to investigate the prophylactic and therapeutic effects of Arum dioscoridis (tirsik) plant extract against thioacetamide-induced experimental liver toxicity. METHODS: In this study, 35 male Wistar-Albino rats, of 12-14 weeks old, weighing between 200 and 270 g, were used. Rats were divided into 5 groups of 7 each. The first group was determined as the control group, the second group as the hepatotoxicity group, the third group as the prophylaxis group, the fourth group as the intraperitoneal treatment group, and the fifth group as the oral treatment group. Hepatotoxicity was achieved with a single intraperitoneal dose of 350 mg/kg of thioacetamide (TAA). On the seventh day, the rats were sacrificed under general anesthesia. Their blood was taken and liver enzymes were studied. Malondialdehyde (MDA), glutathyon peroxi dase (GPx), catalase (CAT), superoxit dismutase (SOD) enzymes were studied from liver tissues. In addition, liver tissues were evaluated histopathologically. RESULTS: With Arum dioscoridis treatment and prophylaxis, improvements in all parameters and increases in tissue antioxidant levels were detected. CONCLUSION: It was determined that Arum dioscoridis plant extract has prophylactic and therapeutic effects on liver toxicity. In cases of acute liver injury and hepatotoxicity, we suggest the potential application of Arum dioscoridis for effective and inexpensive treatment.


Assuntos
Arum , Doença Hepática Induzida por Substâncias e Drogas , Animais , Ratos , Tioacetamida/toxicidade , Tioacetamida/metabolismo , Ratos Wistar , Antioxidantes/farmacologia , Antioxidantes/uso terapêutico , Fígado/metabolismo , Doença Hepática Induzida por Substâncias e Drogas/tratamento farmacológico , Doença Hepática Induzida por Substâncias e Drogas/etiologia , Doença Hepática Induzida por Substâncias e Drogas/prevenção & controle , Extratos Vegetais/farmacologia , Estresse Oxidativo
4.
Medicina (Kaunas) ; 58(10)2022 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-36295620

RESUMO

Background and Aim: Although vaccination practices continue at a fast pace around the world, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) still threatens people's lives. In this study, we aimed to determine the presence of SARS-CoV-2 in patients who do not have the typical symptoms of the novel coronavirus disease 2019 (COVID-19), but only present with dyspepsia, and to investigate the role of immature granulocytes in the early diagnosis of these patients. Material and Methods: Adult and pediatric patients suffering from dyspepsia were included in the study. The patients were divided into two groups, ''positive'' and ''negative'', based on their SARS-CoV-2 polymerase chain reaction test results. Immature granulocyte count (IG), immature granulocyte percentage (IG%), C-reactive protein (CRP), and neutrophil-to-lymphocyte ratio (NLR) values were recorded. Results: A total of 238 patients, including 25 (10.5%) pediatric and 213 (89.5%) adult patients, were included in the study. A total of 2 (8%) pediatric patients and 17 (7.9%) adult patients tested positive for SARS-CoV-2. The IG, IG%, and CRP parameters were significantly higher in the SARS-CoV-2-positive patients compared to the SARS-CoV-2-negative patients. The optimal cut-off value predictive of COVID-19 infection was determined to be ≥0.650 (sensitivity: 52.6% and specificity: 95.5%, p = 0.001) for IG%. Conclusions: It should be noted that dyspepsia may also be a COVID-19 symptom. IG% values, which can be determined with a hemogram test, a cheap and easily accessible test, may be a warning in the early detection of patients who do not have the typical symptoms of COVID-19.


Assuntos
COVID-19 , Dispepsia , Adulto , Humanos , Criança , COVID-19/complicações , COVID-19/diagnóstico , SARS-CoV-2 , Proteína C-Reativa/análise , Granulócitos
5.
Turk J Gastroenterol ; 31(5): 393-399, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32519959

RESUMO

BACKGROUND/AIMS: Hepatitis C Virus (HCV) infection is an important global public health problem. The application of screening programs is important for the elimination of HCV in addition to DAA therapies. The aim of this study was to measure the knowledge, attitudes and behaviours of family physicians, who are important in screening programs for the diagnosis, natural history, and treatment of HCV infection. MATERIALS AND METHODS: This cross-sectional study aimed to measure the knowledge levels in respect of HCV screening, diagnosis, natural history and treatment, of family physicians working nationwide in Turkey, through a survey. RESULTS: The most common reason to perform an anti-HCV test stated by 70.9% (n:420) of the participants was the mandatory screening program before marriage. Of the participants included in the study, 29.6% (n=175) had encountered anti-HCV test positivity at least once within the last year, and of these, 15.4% (n=27) had no knowledge of whether the patient went to a higher level center for further diagnosis, while 58.9% (n=103) did not know the disease stage. In response to questions about current drug options for hepatitis C infection, 14.5% were aware of DAA and 34.8% of participitant reported interferon+ ribavirin. CONCLUSION: Family physicians have gaps in their knowledge of the screening, natural history and treatment of HCV infection. The results of this study show that HCV training plans for family physicians should cover all aspects of the infection, and emphasize the necessity for the establishment of guideline-based screening recommendations.


Assuntos
Antivirais/uso terapêutico , Conhecimentos, Atitudes e Prática em Saúde , Hepatite C , Médicos de Família/psicologia , Padrões de Prática Médica/estatística & dados numéricos , Adulto , Estudos Transversais , Feminino , Hepacivirus , Humanos , Masculino , Papel do Médico , Inquéritos e Questionários , Turquia
6.
BMJ Case Rep ; 12(3)2019 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-30936327

RESUMO

Azathioprine (AZA) is an immunosuppressive drug that is widely used in the treatment of autoimmune diseases. Although AZA is used widely, many studies reported that AZA-related hepatotoxicity is rather rare. We aimed to present a case with severe cholestatic hepatitis due to AZA use for Behcet's disease. Three weeks after starting AZA for the treatment of uveitis, the patient was admitted to our clinic with cholestasis and constitutional symptoms. In liver biopsy, findings were in accordance with drug reaction, and the AZA treatment was stopped. After 2 months, bilirubin levels and liver tests results became normal. As a result, given that AZA may cause severe cholestasis, the drug should be stopped if idiosyncrasy or hypersensitivity develops. If there is a debate in the diagnosis, histopathological evaluation of the liver would be the major issue because of the correct diagnosis of the drug toxicity and excluding other aetiologies.


Assuntos
Azatioprina/efeitos adversos , Síndrome de Behçet/tratamento farmacológico , Colestase/induzido quimicamente , Imunossupressores/efeitos adversos , Fígado/patologia , Prurido/induzido quimicamente , Uveíte/tratamento farmacológico , Adulto , Azatioprina/uso terapêutico , Síndrome de Behçet/complicações , Síndrome de Behçet/fisiopatologia , Doença Hepática Induzida por Substâncias e Drogas , Colestase/tratamento farmacológico , Colestase/patologia , Humanos , Imunossupressores/uso terapêutico , Icterícia/induzido quimicamente , Fígado/efeitos dos fármacos , Masculino , Náusea/induzido quimicamente , Prurido/tratamento farmacológico , Prurido/patologia , Resultado do Tratamento , Uveíte/etiologia , Vômito/induzido quimicamente
7.
Prz Gastroenterol ; 12(2): 105-110, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28702098

RESUMO

INTRODUCTION: Diabetic patients are susceptible to bacterial, viral and fungal infections because of various deficiencies in the immune system. AIM: To investigate a possible link between hepatitis B/C prevalence and microvascular complications as well as duration of diabetes. MATERIAL AND METHODS: In total 1263 diabetic patients (1149 type 2, 114 type 1) were enrolled in the study. The control group consisted of 1482 healthy blood donors who were over 40 years old. All diabetic patients were tested for HBsAg, anti-HBs and anti-HCV beside routine laboratory tests. Diabetic patients were divided into three groups according to their diabetes duration, and all of the patients were scanned for microvascular complications. Demographic data of all patients were recorded. RESULTS: HBsAg seropositivity was 3.7% in diabetic patients and 1.08% in the control group; this difference was statistically significant (p < 0.001). HBsAg positivity rates in type 1 and type 2 diabetics were 0.8% and 4%, respectively (p = 0.09). HCV seropositivity was 2.2% for diabetics and 0.5% for the control group; this difference was statistically significant (p < 0.001). Anti-HCV seropositivity in type 1 and type 2 diabetics was 1.75% and 2.26%, respectively. There was no relationship between diabetes duration and hepatitis B-C prevalence (p > 0.05). Also, no relationship was found between microvascular complications of diabetes and hepatitis B/C seropositivity. CONCLUSIONS: Hepatitis B and C seroprevalence was found to be increased in diabetes mellitus; however, there was no relationship between hepatitis seroprevalence and the duration or microvascular complications of diabetes.

8.
Turk J Gastroenterol ; 23(5): 552-9, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23161301

RESUMO

BACKGROUND/AIMS: Pegylated alfa interferon is the only immunomodulatory drug licensed for hepatitis B. We evaluated the safety and tolerability of peginterferon alfa-2a (40KD) in patients with chronic hepatitis B. MATERIALS AND METHODS: A total of 113 chronic hepatitis B patients under peginterferon alfa-2a (40KD; 180 µg/week) treatment were included in this multicenter, open label, non-interventional study, and 66 patients completed the follow-up period. Vital signs, physical examination and laboratory findings, concomitant medications, and adverse events were recorded. A Quality of Life questionnaire (Short Form-36) was performed twice, at the beginning and at the end of the study. RESULTS: There was no significant difference between initial and last visits in terms of physical examination findings and Short Form-36 scores. A total of 27 adverse events were reported in 15 patients (22.7%), with most of them being mild in intensity (70.4%). The rates of the adverse events were similar in the monotherapy and combination therapy groups (peginterferon alfa-2a + lamivudine, peginterferon alfa-2a + adefovir or peginterferon alfa-2a + entecavir therapy groups), at 23.7% and 14.3%, respectively. The dosage of peginterferon had to be reduced in 3 patients (4.5%) due to thrombocytopenia. Overall patient compliance to treatment was detected as 85.9%. CONCLUSIONS: Based on the lack of serious adverse events and absence of impairment in Quality of Life, peginterferon alfa-2a (40KD, 180 µg/week, subcutaneously) treatment for 48 weeks led to a high level of patient compliance and was associated with a high degree of safety and tolerability for the treatment of adult patients with chronic hepatitis B in real-life practice.


Assuntos
Hepatite B Crônica/tratamento farmacológico , Interferon-alfa/administração & dosagem , Cooperação do Paciente , Polietilenoglicóis/administração & dosagem , Qualidade de Vida , Adolescente , Adulto , Idoso , Antivirais/administração & dosagem , Relação Dose-Resposta a Droga , Feminino , Seguimentos , Hepatite B Crônica/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Proteínas Recombinantes/administração & dosagem , Estudos Retrospectivos , Inquéritos e Questionários , Resultado do Tratamento , Adulto Jovem
9.
J Laparoendosc Adv Surg Tech A ; 21(10): 947-51, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22044196

RESUMO

BACKGROUND: Pneumoperitoneum induced to facilitate laparoscopy is associated with splanchnic hypoperfusion, ischemia/reperfusion (I/R) injury, and oxidative stress. AIM: This study investigated the effects of pre- and postlaparoscopic conditioning, zinc, pentoxifylline, and N-acetylcysteine on markers of I/R injury of the small intestine in an animal model. METHODS: Male Sprague-Dawley rats (n=56) were randomized to 1 of 7 treatment groups. Except for group 7 (control group that underwent sham surgery without pneumoperitoneum), pneumoperitoneum was induced in all by use of carbondioxide insufflation under a pressure of 15 mmHg. Group 1 (laparoscopic I/R) was subjected to 60 minutes of pneumoperitoneum. Group 2 (laparoscopic preconditioning plus laparoscopy) was subjected to 5 minutes of insufflation and 5 minutes of desufflation followed by 60 minutes of pneumoperitoneum. Group 3 (laparoscopy plus laparoscopic postconditioning) was subjected to 60 minutes of pneumoperitoneum and 60 minutes of desufflation followed by 5 minutes of insufflation and 5 minutes of desufflation. Group 4 (zinc), group 5 (pentoxifylline), and group 6 (N-acetylcysteine) received a single intraperitoneal injection of zinc (50 mg/kg), pentoxifylline (50 mg/kg), or N-acetylcysteine (150 mg/kg), respectively, 5 minutes before the desufflation period. Animals were killed at the end of the experiments, and small intestine samples were tested for malondialdehyde (MDA), catalase (CAT), glutathione peroxidase (GPX), and superoxide dismutase (SOD). RESULTS: There was no significant difference for MDA levels between each other in the groups 1, 2, and 3. But MDA levels were higher significantly in groups 1, 2, and 3 than those of groups 4, 5, 6, and 7. SOD and GPX levels of group 3 were significantly higher than those of groups 1, 2, 4 through 7. According to the SOD levels, there was no significant difference between each other in those of groups 1, 2, 4 through 7. GPX levels of group 3 were significantly higher than those of groups 1, 2, 4 through 7. GPX levels of group 1 were significantly lower than those of groups 5 and 7. The mean CAT level of groups 1 and 2 was significantly lower than that of groups 3, 6, and 7. The mean CAT level of group 3 was significantly higher than that of groups 1, 2, 4 through 7. CONCLUSIONS: In this animal model of small intestine I/R injury, laparoscopy caused small intestine ischemia as evidenced by elevated markers of tissue I/R injury. This effect was significantly attenuated by zinc, pentoxifylline, and N-acetylcysteine, but not by prelaparoscopy conditioning and postlaparoscopy conditioning.


Assuntos
Acetilcisteína/uso terapêutico , Sequestradores de Radicais Livres/uso terapêutico , Intestino Delgado/irrigação sanguínea , Laparoscopia/efeitos adversos , Pentoxifilina/uso terapêutico , Traumatismo por Reperfusão/etiologia , Traumatismo por Reperfusão/prevenção & controle , Zinco/uso terapêutico , Animais , Modelos Animais de Doenças , Masculino , Ratos , Ratos Sprague-Dawley
10.
Turk J Gastroenterol ; 21(3): 317-20, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-20931441

RESUMO

A 60-year-old male, living in a rural area, presented with recurrent upper gastrointestinal bleeding. Isolated fundal varices were seen on endoscopy. A lesion similar to cyst hydatid was seen in the spleen on abdominal ultrasonography and computerized tomography scanning. Also, sinistral (left-sided) portal hypertension and collaterals were seen due to the compression of the splenic vein by the cyst. Indirect hemagglutination antibody test for Echinococcus granulosus was positive. By screening, no other cyst was found in any other site of the body. The patient underwent open abdominal surgery, and the anterior wall of the cyst was resected partially; within it were multiple daughter cysts and hydatid fluid. After decontamination of the daughter cysts and hydatid fluid, germinative membrane omentoplasty was performed with a part of the omentum. However, the patient suffered from recurrent gastrointestinal bleeding postoperatively and he was re-evaluated. Later, splenectomy was performed in order to relieve left-sided portal hypertension. The patient did not experience further bleeding and gastric varices disappeared following splenectomy.


Assuntos
Equinococose/complicações , Varizes Esofágicas e Gástricas/parasitologia , Hemorragia Gastrointestinal/parasitologia , Hipertensão Portal/parasitologia , Esplenopatias/complicações , Esplenopatias/parasitologia , Humanos , Masculino , Pessoa de Meia-Idade
11.
Turk J Gastroenterol ; 21(2): 179-82, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20872335

RESUMO

We report an adult case of Yersinia pseudotuberculosis colitis who presented with severe gastrointestinal bleeding. A 25-year-old male had admitted with fever, vomiting, body aches, and massive lower gastrointestinal bleeding. Since diagnostic tests were unremarkable and the patient's hemodynamic condition was unstable, emergency explorative laparotomy was performed. During the operation, localized wall thickening and ulcers were seen in the cecum. Right hemicolectomy was performed. Histological examination showed non-caseation granulomas in mesenteric lymph nodes and transmural inflammation in the cecum. Y. pseudotuberculosis serology, based on histological suspicion, was positive. The patient was discharged with cure 12 days after the operation following gentamicin treatment. To our knowledge, there are only two reports about massive lower gastrointestinal bleeding due to Y. pseudotuberculosis. Although this is a rare entity, lower gastrointestinal bleeding due to Y. pseudotuberculosis should be taken into consideration in the differential diagnosis of patients presenting with massive lower gastrointestinal bleeding, as a possible cause.


Assuntos
Colite/diagnóstico , Hemorragia Gastrointestinal/microbiologia , Infecções por Yersinia pseudotuberculosis/diagnóstico , Adulto , Colite/complicações , Colite/microbiologia , Humanos , Masculino , Índice de Gravidade de Doença , Infecções por Yersinia pseudotuberculosis/complicações
12.
Tuberk Toraks ; 57(4): 431-4, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-20037861

RESUMO

A 62-year-old, man patient was diagnosed as small cell lung cancer. Cisplatin (80 mg/m(2), first day) and etoposide (100 mg/m(2), three days) chemotherapy was started for once 21 days. As the patient received third course of chemotherapy, jaundice and hyperbilirubinemia were detected. Hepatic ultrasonography showed dilated choledochus and intrahepatic biliary tract. Hepatic markers and serologic tests for viral hepatitis were found as normal. Finally endoscopic retrograde cholangiopancreatography (ERCP) was performed. Endoscopic sphincterotomy was performed in the first ERCP and two days later, second ERCP was performed and oddi sphincter was seen as fibrotic and stenotic and stent was placed. One day after the stent placement, direct bilirubin was found as 6.2 mg/dL and 10 days later laboratory parameters were detected as normal. Oddi sphincter fibrosis occurred due to lung cancer chemotherapy treatment is an interesting case for fibrosis not having been reported due to cisplatin or etoposide before.


Assuntos
Antineoplásicos/efeitos adversos , Doenças do Ducto Colédoco/induzido quimicamente , Fibrose/induzido quimicamente , Neoplasias Pulmonares/tratamento farmacológico , Carcinoma de Pequenas Células do Pulmão/tratamento farmacológico , Esfíncter da Ampola Hepatopancreática , Antineoplásicos/uso terapêutico , Colangiopancreatografia Retrógrada Endoscópica , Doenças do Ducto Colédoco/cirurgia , Fibrose/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Stents , Resultado do Tratamento
15.
Med Sci Monit ; 12(8): BR274-8, 2006 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-16865059

RESUMO

BACKGROUND: Methotrexate (MTX), a folic acid antagonist, is widely used as a cytotoxic chemotherapeutic agent for malignancies as well as in the treatment of various inflammatory diseases. The efficacy of this agent is often limited by severe side effects and toxic conditions. The present study was undertaken to determine whether N-acetylcysteine (NAC), as a potent antioxidant compound, could ameliorate MTX-induced oxidative liver damage. MATERIAL/METHODS: A single dose of MTX (20 mg/kg, intraperitoneal) to rats was followed by intraperitoneal saline or NAC administration (150 mg/kg, MTX + NAC group) for the next 5 days. On the fifth day the rats were sacrificed and liver tissue samples were obtained and stored to measure reduced glutathione (GSH) and malondialdehyde (MDA) levels and myeloperoxidase (MPO), superoxide dismutase (SOD), and catalase (CAT) activity. RESULTS: MTX caused decreased GSH level and SOD and CAT activity and increased MDA level and MPO activity in the liver homogenates. These changes were significantly reversed by NAC treatment. CONCLUSIONS: These results confirm that administration of NAC decreases MTX-induced oxidative damage to the liver. These data indicate that NAC may be of therapeutic use in preventing hepatotoxicity in patients receiving MTX treatment.


Assuntos
Acetilcisteína/farmacologia , Doença Hepática Induzida por Substâncias e Drogas , Metotrexato/toxicidade , Estresse Oxidativo , Animais , Glutationa/metabolismo , Fígado/efeitos dos fármacos , Fígado/metabolismo , Oxidantes/metabolismo , Ratos , Ratos Wistar
16.
Dig Dis Sci ; 51(3): 488-94, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16614957

RESUMO

Recently, the role of oxidative stress in the pathogenesis of ulcerative colitis has been investigated. This study was designed to evaluate the possible beneficial effects of L-carnitine on tissue injury and oxidative stress in acetic acid-induced colitis in rats. Acetic acid administration induced severe damage macroscopically and histopathologically in colon and significantly increased the levels of malondialdehyde and myeloperoxidase in colonic tissue. Supplementation of L-carnitine to acetic acid-treated rats did not prove to induce any improvements in macroscopic scores, while L-carnitine administration improved histopathologic scores and significantly decreased malondialdehyde and myeloperoxidase levels in treatment groups. Acetic acid administration significantly decreased reduced glutathione, superoxide dismutase, and catalase levels in colonic homogenate. Supplementation of L-carnitine prevented the depletion of reduced glutathione levels but significantly increased superoxide dismutase levels. On the other hand, no significant change in catalase activity was observed. In conclusion, these results may reflect that L-carnitine could be beneficial as a complementary agent in treatment of ulcerative colitis.


Assuntos
Carnitina/farmacologia , Colite Ulcerativa/tratamento farmacológico , Colite Ulcerativa/patologia , Peroxidação de Lipídeos/fisiologia , Peroxidase/metabolismo , Ácido Acético , Animais , Colite Ulcerativa/enzimologia , Modelos Animais de Doenças , Mediadores da Inflamação/análise , Mucosa Intestinal/efeitos dos fármacos , Mucosa Intestinal/patologia , Masculino , Peroxidase/análise , Probabilidade , Distribuição Aleatória , Ratos , Ratos Wistar , Espécies Reativas de Oxigênio/metabolismo , Valores de Referência , Estatísticas não Paramétricas , Resultado do Tratamento
17.
J Gastroenterol Hepatol ; 21(3): 575-80, 2006 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16638102

RESUMO

BACKGROUND AND AIM: Hepatitis C virus (HCV) is prevalent in hemodialysis (HD) patients. These patients experience more side-effects with antiviral treatment. The aim of the present study was to evaluate the efficacy and tolerability of pegylated interferon (PEG-IFN) alpha-2a in chronic hemodialysis patients with chronic hepatitis C. METHODS: Twenty-five patients were included into the study. All of the patients were interferon naive, anti-HCV antibodies positive and polymerase chain reaction HCV-RNA positive. Twelve of the patients received PEG-IFN alpha-2a at a dose of 135 microg weekly for 48 weeks (Group 1). The remaining 13 patients who received no specific treatment were used as controls (Group 2). The patients were prospectively followed up for a period of 18 months. Biochemical and virological responses were evaluated at the end of the study period (end-of-treatment response) and 6 months after the completion of therapy (sustained response). RESULTS: Virological end-of-treatment response was observed in 10 patients (83.4%) in Group 1 and one patient (7.7%) in Group 2 (P < 0.001). Sustained virological response was observed in nine patients (75%) in Group 1 and one patient (7.7%) in Group 2 (P < 0.001). Alanine aminotransferase (ALT) levels were initially increased in seven patients in Group 1 and normalized in five of these patients at the end of the treatment and sustained biochemical response was 71.4%. In contrast, ALT levels in Group 2 were initially high in five patients and normalized in two of them (40%) at the end of the 48 weeks. Even if most of the patients experienced several side-effects (anemia 75%, fatigue 58.3%, thrombocytopenia 33.3% and leukopenia 33.3%), they did not impose the discontinuation of the treatment. CONCLUSION: The present study showed that PEG-IFN alpha-2a for 48 weeks is efficacious and well tolerated in hemodialysis patients with HCV.


Assuntos
Antivirais/uso terapêutico , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/uso terapêutico , Polietilenoglicóis/uso terapêutico , Diálise Renal , Adulto , Distribuição de Qui-Quadrado , Quimioterapia Combinada , Ensaio de Imunoadsorção Enzimática , Feminino , Genótipo , Hepatite C Crônica/complicações , Humanos , Interferon alfa-2 , Falência Renal Crônica/complicações , Falência Renal Crônica/terapia , Testes de Função Hepática , Masculino , Estudos Prospectivos , Proteínas Recombinantes , Fatores de Risco , Estatísticas não Paramétricas
18.
Turk J Gastroenterol ; 16(1): 38-40, 2005 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16252187

RESUMO

Spontaneous bacterial peritonitis is a well-known entity, with a reported incidence of 15-20% in advanced cirrhotic patients. Escherichia coli and Klebsiella pneumoniae are the most common causes of spontaneous bacterial peritonitis; Brucella is extremely rare. We aimed to present one case of such a rare condition in a cirrhotic patient who also had hepatocellular carcinoma. Routine laboratory tests, abdominal ultrasonography and peritoneal fluid examinations were studied in a cirrhotic patient with ascites. Peritoneal fluid white blood cell count was 1300/mm3, with lymphocyte predominance (80%). Peritoneal fluid and blood culture both yielded Brucella melitensis. The patient also had a mass in the right lobe of the liver confirmed as hepatocellular carcinoma by biopsy. Brucella should be suspected as a cause of spontaneous bacterial peritonitis in cirrhotic patients with no response to standard spontaneous bacterial peritonitis treatments and with immunodeficiency such as hepatocellular carcinoma.


Assuntos
Brucella melitensis/isolamento & purificação , Brucelose/microbiologia , Cirrose Hepática/complicações , Peritonite/microbiologia , Idoso , Líquido Ascítico/microbiologia , Biópsia , Brucelose/complicações , Carcinoma Hepatocelular/complicações , Carcinoma Hepatocelular/patologia , Evolução Fatal , Humanos , Cirrose Hepática/patologia , Neoplasias Hepáticas/complicações , Neoplasias Hepáticas/patologia , Masculino , Peritonite/complicações
19.
Tohoku J Exp Med ; 206(2): 131-9, 2005 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15888969

RESUMO

Ulcerative colitis is a chronic recurrent inflammatory bowel disease in which oxidative stress has been implicated. The aim of the present study was to evaluate possible protective effects of N-acetylcysteine against acetic acid-induced colitis in a rat model. Rats were administered intrarectal saline (control group) or acetic acid (colitis model group). Rats with acetic acid-induced colitis were treated by intraperitoneal or intrarectal administration of N-acetylcysteine (500 mg/kg) (treated group). Another series of rats were pre-treated by intraperitoneal or intrarectal administration of N-acetylcysteine, then administered intrarectal acetic acid (pre-treated group). The degree of tissue injuries was assessed by macroscopical and histopathological scores of the colonic mucosa. Malondialdehyde, myeloperoxidase, reduced glutathione, superoxide dismutase, and catalase levels were measured in tissue extracts of the dissected colon. Administration of N-acetylcysteine intraperitoneally or intrarectally ameliorated macroscopic score alterations produced by acetic acid in treated groups. In addition, microscopical improvement was observed in all N-acetylcysteine-treated rats compared to untreated animals with colitis. In the colonic tissues of the acetic acid-induced colitis, myeloperoxidase activity and malondialdehyde levels were elevated, while the reduced glutathione levels and superoxide dismutase and catalase activities were decreased. However, intraperitoneal or intrarectal treatment with N-acetylcysteine reversed these parameters, compared to the untreated colitis group. Notably, intrarectal administration of N-acetylcysteine elevated the reduced glutathione levels more markedly compared to the other treatment groups. Superoxide dismutase levels were increased in intraperitoneally or intrarectally N-acetylcysteine-treated groups significantly compared to the control, colitis and pre-treated groups. But there was no significant increase in catalase activity. In conclusion, N-acetylcysteine could be beneficial as a complementary agent in treatment of ulcerative colitis.


Assuntos
Ácido Acético/farmacologia , Acetilcisteína/uso terapêutico , Colite/induzido quimicamente , Colite/tratamento farmacológico , Animais , Colite/metabolismo , Colite/patologia , Glutationa/metabolismo , Peroxidação de Lipídeos , Masculino , Peroxidase/metabolismo , Ratos , Ratos Wistar
20.
J Laparoendosc Adv Surg Tech A ; 15(1): 66-9, 2005 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-15772481

RESUMO

We report a case of a sewing needle, presumably originating from the transverse colon or the ligament of Treitz, that migrated to the greater omentum. A 24-year-old woman was referred to our clinic with a complaint of abdominal pain which was exacerbated by breathing or any physical activity. Abdominal plain x-ray showed a needle in the left upper abdominal area. Abdominal computed tomography (CT) and contrast enhanced x-ray studies was unable to reveal whether the needle was in the colonic lumen. Virtual colonoscopy examination demonstrated that the foreign body was not in the lumen. The foreign body was removed from the patient's greater omentum in a fluoroscopy- guided laparoscopic surgery. An accurate and rapid diagnosis of a perforation in the gastrointestinal tract as the result of an ingested foreign body is difficult in the absence of peritonitis or abscess formation. In such cases, the virtual colonoscopy is useful if there is uncertainty whether the foreign body is in the lumen. Perioperative fluoroscopy can be useful to overcome the lack of tactile discrimination in laparoscopy, in patients who have been scheduled for surgery who have no signs of the localization of the foreign body (such as abscess or solid organ migration).


Assuntos
Corpos Estranhos/cirurgia , Migração de Corpo Estranho/diagnóstico , Laparoscopia/métodos , Agulhas , Omento , Adulto , Feminino , Fluoroscopia , Corpos Estranhos/diagnóstico por imagem , Humanos
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