Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 28
Filtrar
2.
Arch Pathol Lab Med ; 146(7): 846-854, 2022 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-34705032

RESUMO

CONTEXT.­: The histologic features in patients with acute-on-chronic liver failure (ACLF) are evolving, and histologic indicators of patients' poor prognosis are not yet fully established. OBJECTIVE.­: To evaluate the independent histologic predictors of 28-day mortality in ACLF patients on core-needle liver biopsies. DESIGN.­: Core-needle biopsies from patients with a diagnosis of ACLF (n = 152) as per the European Association for the Study of the Liver criteria were included during 8 years. Liver biopsies from 98 patients with compensated chronic liver disease were included as disease controls for histologic comparison. Features of ongoing changes, such as hepatic necrosis, hepatic apoptosis, cholestasis, hepatocyte degeneration, bile ductular proliferation, Mallory-Denk bodies, steatosis, and extent of liver fibrosis, were analyzed for predicting short-term mortality (28 days). A P value of <.05 was considered significant. RESULTS.­: In our cohort of ACLF patients, the following etiologies for acute decompensation were identified: alcohol, 47 of 152 (30.9%); sepsis, 24 of 152 (15.7%); hepatotropic viruses, 20 of 152 (13.1%); drug-induced liver injury, 11 of 152 (7.2%); autoimmune flare, 9 of 152 (5.9%); mixed etiologies, 5 of 152 (3.2%); and cryptogenic, 36 of 152 (23.6%). On histologic examination, hepatic necrosis (P < .001), dense lobular inflammation (P = .03), cholestasis (P < .001), ductular reaction (P = .001), hepatocyte degeneration (P < .001), and absence of advanced fibrosis stages (P < .001) were identified significantly more othen in ACLF patients than in disease controls on univariate analysis. On multivariate Cox regression analysis, the absence of advanced Ishak histologic activity index fibrosis stages (P = .02) and the presence of dense lobular inflammation (P = .04) were associated with increased 28-day mortality in ACLF patients. After adjusting the clinical causes of acute decompensation, only dense lobular inflammation was found as an independent predictor of short-term mortality (P = .04) in ACLF patients. CONCLUSIONS.­: Dense lobular necroinflammatory activity is a clinically independent histologic predictor of 28-day short-term mortality in patients with ACLF.


Assuntos
Insuficiência Hepática Crônica Agudizada , Colestase , Insuficiência Hepática Crônica Agudizada/diagnóstico , Insuficiência Hepática Crônica Agudizada/etiologia , Biópsia , Colestase/complicações , Humanos , Inflamação , Cirrose Hepática/complicações , Necrose , Prognóstico
3.
J Clin Pathol ; 74(12): 766-773, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33789921

RESUMO

AIMS: Despite clinical evidence of liver involvement in patients with coeliac disease (CeD), there is a lack of a method to prove this association. METHODS: Of 146 treatment-naive patients with CeD, 26 had liver dysfunction. Liver biopsies and corresponding small intestinal biopsies were obtained from these 26 patients. Multicolour immunohistochemical and immunofluorescence confocal microscopic studies were performed on paraffin-embedded tissue to detect the IgA/anti-TG2 deposits. Follow-up liver biopsies were taken after a gluten-free diet. RESULTS: Twenty-six out of the 146 patients (17.8%) with suspected coeliac-associated liver disease on histological examination revealed irregular sinusoidal dilatation in 15 (57.6%), steatohepatitis in 4 (15.3%), non-specific chronic hepatitis in 3 (11.5%), autoimmune hepatitis in 2 (7.6%) biopsies, including cirrhosis in one of them, irregular perisinusoidal fibrosis and changes of non-cirrhotic portal fibrosis in one biopsy each (3.8%). IgA/anti-tTG deposits were observed in 22 (84.6%) liver biopsies by dual immunohistochemistry technique, and in 24 (92.3%) by confocal immunofluorescence technique and in all corresponding duodenal biopsies (100%). Overall, IgA/anti-tTG deposits showed 100% sensitivity, 77% specificity and 85% positive predictive value for establishing an association of extraintestinal pathology and CeD using archived tissues. Follow-up liver biopsies could be obtained in five patients; four of them showed not only resolution of the histological lesions but disappearance of IgA/anti-tTG co-localisation. CONCLUSIONS: Data of the present study adds to the body of evidence that liver lesions in patients with CeD are disease related and may have been caused by a similar pathogenic mechanism that causes intestinal changes.


Assuntos
Autoanticorpos/análise , Doença Celíaca/imunologia , Proteínas de Ligação ao GTP/imunologia , Imuno-Histoquímica , Mucosa Intestinal/imunologia , Intestino Delgado/imunologia , Fígado/imunologia , Transglutaminases/imunologia , Adolescente , Adulto , Biópsia , Estudos de Casos e Controles , Doença Celíaca/diagnóstico , Doença Celíaca/dietoterapia , Dieta Livre de Glúten , Feminino , Imunofluorescência , Humanos , Mucosa Intestinal/patologia , Intestino Delgado/patologia , Fígado/patologia , Masculino , Microscopia Confocal , Valor Preditivo dos Testes , Proteína 2 Glutamina gama-Glutamiltransferase , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
4.
Surg Laparosc Endosc Percutan Tech ; 31(2): 227-233, 2020 Oct 28.
Artigo em Inglês | MEDLINE | ID: mdl-33122592

RESUMO

BACKGROUND: Minimally invasive thymectomy (MIT) is emerging as an effective alternative to open thymectomy in the management of patients with myasthenia gravis (MG). The primary objective of our study is to assess the surgical and neurological outcome of MIT in patients with MG. MATERIALS AND METHODS: It is a retrospective evaluation of prospectively collected data of 100 patients with MG, who underwent MIT from April 2012 to January 2018 at a tertiary care center in India. Surgical outcome was assessed for success of minimal invasive approach, conversion, perioperative morbidity, and postoperative hospital course. Neurological outcome was assessed, after at least 1 year of follow-up, according to Myasthenia Gravis Foundation of America postintervention status. Factors predicting complete stable remission (CSR) were evaluated. RESULTS: MIT was successfully performed in 98% patients with 2% conversion. There was no mortality. Overall, 10% of patients had perioperative morbidity with 5% having exacerbation of neurological symptoms. Two of these needed postoperative ventilation, whereas 3 recovered on conservative treatment. Median operative time and hospital stay were 140 minutes and 3 days, respectively. At a median follow-up of 47 months, CSR was seen in 20% with improvement in 73.3%. Overall, 63% patients were taken off steroids and patients requiring 3 drugs decreased by 70.7%. There was significant reduction in the dosage of pyridostigmine (P<0.001), prednisolone (P<0.001), and azathioprine (P=0.002) after thymectomy. Milder disease (Myasthenia Gravis Foundation of America class 1 and 2) predicted CSR on multivariate analysis. CONCLUSIONS: MIT is a safe and effective procedure that leads to improvement in neurological status with significant reduction in number and dosage of medications after thymectomy. Mild disease predicts CSR.


Assuntos
Miastenia Gravis , Timectomia , Seguimentos , Humanos , Índia/epidemiologia , Miastenia Gravis/cirurgia , Estudos Retrospectivos , Centros de Atenção Terciária , Resultado do Tratamento
5.
J Clin Exp Hepatol ; 10(5): 477-517, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33029057

RESUMO

Acute liver failure (ALF) is not an uncommon complication of a common disease such as acute hepatitis. Viral hepatitis followed by antituberculosis drug-induced hepatotoxicity are the commonest causes of ALF in India. Clinically, such patients present with appearance of jaundice, encephalopathy, and coagulopathy. Hepatic encephalopathy (HE) and cerebral edema are central and most important clinical event in the course of ALF, followed by superadded infections, and determine the outcome in these patients. The pathogenesis of encephalopathy and cerebral edema in ALF is unique and multifactorial. Ammonia plays a crucial role in the pathogenesis, and several therapies aim to correct this abnormality. The role of newer ammonia-lowering agents is still evolving. These patients are best managed at a tertiary care hospital with facility for liver transplantation (LT). Aggressive intensive medical management has been documented to salvage a substantial proportion of patients. In those with poor prognostic factors, LT is the only effective therapy that has been shown to improve survival. However, recognizing suitable patients with poor prognosis has remained a challenge. Close monitoring, early identification and treatment of complications, and couseling for transplant form the first-line approach to manage such patients. Recent research shows that use of dynamic prognostic models is better for selecting patients undergoing liver transplantation and timely transplant can save life of patients with ALF with poor prognostic factors.

6.
J Clin Exp Hepatol ; 10(4): 339-376, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32655238

RESUMO

Acute liver failure (ALF) is an infrequent, unpredictable, potentially fatal complication of acute liver injury (ALI) consequent to varied etiologies. Etiologies of ALF as reported in the literature have regional differences, which affects the clinical presentation and natural course. In this part of the consensus article designed to reflect the clinical practices in India, disease burden, epidemiology, clinical presentation, monitoring, and prognostication have been discussed. In India, viral hepatitis is the most frequent cause of ALF, with drug-induced hepatitis due to antituberculosis drugs being the second most frequent cause. The clinical presentation of ALF is characterized by jaundice, coagulopathy, and encephalopathy. It is important to differentiate ALF from other causes of liver failure, including acute on chronic liver failure, subacute liver failure, as well as certain tropical infections which can mimic this presentation. The disease often has a fulminant clinical course with high short-term mortality. Death is usually attributable to cerebral complications, infections, and resultant multiorgan failure. Timely liver transplantation (LT) can change the outcome, and hence, it is vital to provide intensive care to patients until LT can be arranged. It is equally important to assess prognosis to select patients who are suitable for LT. Several prognostic scores have been proposed, and their comparisons show that indigenously developed dynamic scores have an edge over scores described from the Western world. Management of ALF will be described in part 2 of this document.

7.
J Clin Exp Hepatol ; 10(1): 43-80, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32025166

RESUMO

Hepatocellular carcinoma (HCC) is one of the major causes of morbidity, mortality, and healthcare expenditure in patients with chronic liver disease in India. The Indian National Association for Study of the Liver (INASL) had published its first guidelines on diagnosis and management of HCC (The Puri Recommendations) in 2014, and these guidelines were very well received by the healthcare community involved in diagnosis and management of HCC in India and neighboring countries. However, since 2014, many new developments have taken place in the field of HCC diagnosis and management, hence INASL endeavored to update its 2014 consensus guidelines. A new Task Force on HCC was constituted that reviewed the previous guidelines as well as the recent developments in various aspects of HCC that needed to be incorporated in the new guidelines. A 2-day round table discussion was held on 5th and 6th May 2018 at Puri, Odisha, to discuss, debate, and finalize the revised consensus statements. Each statement of the guideline was graded according to the Grading of Recommendations Assessment Development and Evaluation system with minor modifications. We present here the 2019 Update of INASL Consensus on Prevention, Diagnosis, and Management of Hepatocellular Carcinoma in India: The Puri-2 Recommendations.

8.
J Gastroenterol Hepatol ; 35(3): 438-445, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31498492

RESUMO

BACKGROUND AND AIM: Demonstration of villous abnormalities is an essential component of diagnosis of celiac disease (CeD) that requires duodenal biopsies. There is a need for non-invasive biomarker(s) that can predict the presence of villous abnormalities. METHODS: Levels of plasma citrulline, plasma intestinal fatty acid binding protein (I-FABP), and serum regenerating gene 1α (Reg1α) were estimated in treatment naïve patients with CeD and controls. The levels of these biomarkers and their cyclical pattern were validated in a predicted model of enteropathy. Optimum diagnostic cut-off values were derived, and the results were further validated in a prospective validation cohort. RESULTS: While level of plasma citrulline was significantly lower, the levels of plasma I-FABP and serum Reg1α were significantly higher in patients with CeD (n = 131) in comparison with healthy (n = 216) and disease controls (n = 133), and their levels reversed after a gluten-free diet (GFD). In the model of predicted enteropathy (n = 70), a sequential decrease and then increase in the level of plasma citrulline was observed; such a sequential change was not observed with I-FABP and Reg1α. The diagnostic accuracy for prediction of presence of villous abnormality was 89% and 78% if citrulline level was  ≤ 30 µM/L and I-FABP levels were ≥ 1100 pg/mL, respectively. The results were validated in a prospective validation cohort (n = 104) with a sensitivity and specificity of 79.5% and 83.1%, respectively, for predicting villous abnormalities of modified Marsh grade > 2 at calculated cut-off values of citrulline and I-FABP. CONCLUSIONS: Plasma citrulline  ≤ 30 µM/L is the most consistent, highly reproducible non-invasive biomarker that can predict the presence of villous abnormality and has the potential for avoiding duodenal biopsies in 78% patients suspected to have CeD.


Assuntos
Doença Celíaca/diagnóstico , Doença Celíaca/patologia , Citrulina/sangue , Proteínas de Ligação a Ácido Graxo/sangue , Mucosa Intestinal/anormalidades , Litostatina/sangue , Adulto , Biomarcadores/sangue , Estudos de Coortes , Feminino , Humanos , Mucosa Intestinal/patologia , Masculino , Valor Preditivo dos Testes , Adulto Jovem
9.
Pancreas ; 47(2): 227-232, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29303908

RESUMO

OBJECTIVES: Early detection of pancreatic ductal adenocarcinoma still remains a challenge. Patients with chronic pancreatitis (CP) have a markedly increased risk of pancreatic cancer. Mutations in oncogenes and/or tumor suppressor genes play a role in development of pancreatic ductal adenocarcinoma. This study assessed mutations in KRAS and p53 gene in blood as a screening tool for malignant transformation in CP patients. METHODS: This was a cohort, single-center study including 294 CP patients. DNA was isolated from plasma of CP patients, and KRAS mutations were identified using polymerase chain reaction-restriction fragment length polymorphism. Patients with positive KRAS mutation were screened for malignancy using positron emission tomography or endoscopic ultrasound. Mutations in p53 gene were analyzed by sequencing. Tissue samples from CP and pancreatic cancer patients were also tested for mutations in KRAS and p53 genes. RESULTS: The plasma samples of 64 CP patients were positive for KRAS mutation, and 4 had mutation in p53 gene also. No patient positive for KRAS mutation and/or p53 mutation was found to have malignant transformation. CONCLUSION: Detection of KRAS or p53 mutation in plasma is not an effective screening tool for pancreatic cancer because accumulation of multiple mutations is required for malignant transformation in the pancreas.


Assuntos
Transformação Celular Neoplásica/genética , Mutação , Neoplasias Pancreáticas/genética , Pancreatite Crônica/genética , Proteínas Proto-Oncogênicas p21(ras)/genética , Proteína Supressora de Tumor p53/genética , Adulto , Linhagem Celular Tumoral , Estudos de Coortes , Análise Mutacional de DNA , Progressão da Doença , Detecção Precoce de Câncer , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Pancreáticas/sangue , Neoplasias Pancreáticas/diagnóstico , Pancreatite Crônica/patologia , Proteínas Proto-Oncogênicas p21(ras)/sangue , Proteína Supressora de Tumor p53/sangue
10.
Appl Immunohistochem Mol Morphol ; 26(6): 425-430, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-27753658

RESUMO

Tissue transglutaminase 2 enzyme plays a diverse role in intracellular and extracellular functioning. Aberrant expression of anti-TG2 antibody has recently been proposed for extraintestinal identification of celiac disease (CeD), but its utility is questionable. To examine whether anti-TG2 immunohistochemical (IHC) staining can be of diagnostic value in identifying extraintestinal involvement in CeD, tissue blocks of patients with IgA nephropathies (IgAN), minimal change disease, membranous glomerulonephritis, membrano-proliferative glomerulonephritis, normal kidney, intestinal biopsies from CeD, tropical sprue, nonspecific duodenitis, and inflammatory bowel disease; liver biopsies from patients with chronic hepatitis B and C, acute liver failure (ALF), and CeD-associated liver diseases were retrieved and subjected to IHC staining for anti-tissue transglutaminase 2 enzyme. H-score was calculated by multiplying the area of positivity and stain intensity. Anti-TG2 stain H-scores were almost similar in IgAN and non-IgANs (H-score 6.31±3 vs. 7.03±2.7); however, H-scores in both of these groups were significantly higher than in normal renal parenchyma (1.6±1.5). Only 6.2% patients with IgAN with anti-TG2 immunostain positivity showed a positive anti-tTG antibody serology and villous abnormalities, suggestive of CeD. Intestinal biopsies from patients with CeD, tropical sprue, nonspecific duodenitis, and inflammatory bowel disease also showed high anti-TG2 H-scores, with no statistically significant differences. Liver biopsies from patients with both ALF, as well as chronic liver diseases showed high anti-TG2 H-scores; with highest stain expression in ALF. In conclusion, IHC expression of anti-TG2 stain correlates with both acute and chronic tissue injuries, irrespective of etiology and organ involvement. It is not a reliable marker for diagnosis of CeD.


Assuntos
Autoantígenos/imunologia , Doença Celíaca/diagnóstico , Proteínas de Ligação ao GTP/imunologia , Hepatite Viral Humana/diagnóstico , Nefropatias/diagnóstico , Transglutaminases/imunologia , Autoanticorpos/metabolismo , Biomarcadores/metabolismo , Biópsia , Doença Celíaca/imunologia , Humanos , Imunoglobulina A/metabolismo , Imuno-Histoquímica , Valor Preditivo dos Testes , Prognóstico , Proteína 2 Glutamina gama-Glutamiltransferase
11.
Surg Obes Relat Dis ; 14(1): 81-91, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-29126863

RESUMO

BACKGROUND: Controlled attenuation parameter (CAP) is a novel, noninvasive technique for assessing hepatic steatosis. However, its role in morbidly obese individuals is unclear. The effect of bariatric surgery on inflammation and fibrosis needs to be explored. OBJECTIVES: To assess the utility of CAP for assessment of hepatic steatosis in morbidly obese individuals and evaluate the effect of bariatric surgery on hepatic steatosis and fibrosis. SETTING: A tertiary care academic hospital. METHODS: Baseline details of anthropometric data, laboratory parameters, FibroScan (XL probe), and liver biopsy were collected. Follow-up liver biopsy was done at 1 year. RESULTS: Of the 124 patients screened, 76 patients were included; mean body mass index was 45.2 ± 7.1 kg/m2. FibroScan success rate was 87.9%. The median liver stiffness measurement (LSM) and CAP were 7.0 (5.0-9.5) kPa and 326.5 (301-360.5) dB/m, respectively. On liver histopathology, severe steatosis and nonalcoholic steatohepatitis were present in 5.3% and 15.8%; significant fibrosis (≥stage 2) and cirrhosis in 39.5% and 2.6%, respectively. Area under receiver operator characteristic curve of LSM for prediction of significant fibrosis (F2-4 versus F0-1) and advanced fibrosis (F3-4 versus F0-2) was .65 (95% confidence interval [CI]: .52-.77) and .83 (95% CI: .72-.94), respectively. The area under receiver operator characteristic curve of CAP for differentiating moderate hepatic steatosis (S2-3 versus S0-1) and severe hepatic steatosis (S3 versus S0-2) was .74 (95% CI: .62-.86) and .82 (95% CI: .73-.91), respectively. At 1-year follow-up, 32 patients underwent liver biopsy. In these patients, there was significant improvement in hepatic steatosis (P = .001), lobular inflammation (P = .033), ballooning (P<.001), and fibrosis (P = .003). Nonalcoholic steatohepatitis was resolved in 3 of 4 (75%) patients. LSM and CAP significantly declined. CONCLUSIONS: LSM and CAP are feasible and accurate at diagnosing advanced fibrosis and severe hepatic steatosis in morbidly obese individuals. Bariatric surgery is associated with significant improvement in LSM, CAP, steatohepatitis, and fibrosis.


Assuntos
Cirurgia Bariátrica , Técnicas de Imagem por Elasticidade , Hepatopatia Gordurosa não Alcoólica/diagnóstico por imagem , Obesidade Mórbida/cirurgia , Adulto , Biópsia , Feminino , Humanos , Fígado/patologia , Cirrose Hepática/diagnóstico por imagem , Cirrose Hepática/patologia , Cirrose Hepática/fisiopatologia , Masculino , Hepatopatia Gordurosa não Alcoólica/patologia , Hepatopatia Gordurosa não Alcoólica/fisiopatologia , Obesidade Mórbida/patologia , Obesidade Mórbida/fisiopatologia , Estudos Prospectivos , Sensibilidade e Especificidade
12.
Pathol Res Pract ; 213(9): 1109-1111, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28844549

RESUMO

INTRODUCTION: Heterotopic pancreas (HP) has rarely been identified in the wall of choledochal cyst (CC). METHODS: Retrospectively we screened 200 excised specimens of CC received at our Institute over a period of last eight years and looked for presence of HP rests in them. All the specimens were processed in their entirety. RESULT: HP was identified in the wall of 13 (6.5%) CCs, out of which 11 were Heinrich Type 2, and two were Heinrich Type 1. In half of the cases peribiliary mucous glands were observed intermingled with the HP rests. Features of chronic fibrosing pancreatitis were identified in these rests, with ulceration of overlying cyst lining. CONCLUSIONS: HP rests in the wall of CC though rare; their coexistence with peribiliary glands may possibly indicate their common embryonic origin. As a common site of inflammation, HP rest may be one of the common causes of CC.


Assuntos
Cisto do Colédoco/patologia , Coristoma/patologia , Pâncreas , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Humanos , Índia , Lactente , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
13.
Clin Transl Gastroenterol ; 8(6): e99, 2017 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-28617446

RESUMO

OBJECTIVES: Cathepsin L (CTSL) and B (CTSB) have a crucial role in extracellular matrix (ECM) degradation and tissue remodeling, which is a prominent feature of fibrogenesis. The aim of this study was to determine the role and clinical significance of these cathepsins in liver fibrosis. METHODS: Hepatic histological CTSL and CTSB expression were assessed in experimental models of liver fibrosis, patients with liver cirrhosis, chronic viral hepatitis, and controls by real-time PCR and immunohistochemistry. Plasma levels of CTSL and CTSB were analyzed in 51 liver cirrhosis patients (Child-Pugh stages A, B and C) and 15 controls. RESULTS: Significantly enhanced CTSL mRNA (P=0.02) and protein (P=0.01) levels were observed in the liver of carbon tetrachloride-treated mice compared with controls. Similarly, hepatic CTSL and CTSB mRNA levels (P=0.02) were markedly increased in Abcb4-/- (ATP-binding cassette transporter knockout) mice compared with wild-type littermates. Elevated levels of CTSL and CTSB were also found in the liver (P=0.001) and plasma (P<0.0001) of patients with hepatic cirrhosis compared with healthy controls. Furthermore, CTSL and CTSB levels correlated well with the hepatic collagen (r=0.5, P=0.007; r=0.64, P=0.0001). CTSL and CTSB levels increased with the Child-Pugh stage of liver cirrhosis and correlated with total bilirubin content (r=0.4/0.2; P≤0.05). CTSL, CTSB, and their combination had a high diagnostic accuracy (area under the curve: 0.91, 0.89 and 0.96, respectively) for distinguishing patients from controls. CONCLUSIONS: Our data demonstrate the overexpression of CTSL and CTSB in patients and experimental mouse models, suggesting their potential as diagnostic biomarkers for chronic liver diseases.

14.
Clin Endocrinol (Oxf) ; 84(4): 578-86, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26147910

RESUMO

BACKGROUND: Patients with idiopathic hypoparathyroidism (IH) require variable doses of calcium and 1-α-(OH)D. The reasons for such variability are not clear. As autoimmune mechanisms may play a role in IH, there is a possibility of coexistent coeliac disease with calcium/vitamin D malabsorption. OBJECTIVE: We assessed the prevalence of coeliac disease and antitissue transglutaminase autoantibodies (anti-tTGAbs) in IH and analysed the effect of a gluten-free diet on calcaemic control. METHOD: A total of 171 patients with IH and 126 healthy controls were screened for anti-tTGAb. IH patients with anti-tTGAb >20 RU/ml underwent duodenoscopy and intestinal biopsy; those with biopsy-proven coeliac disease were followed up on a gluten-free diet. RESULTS: Eleven of 171 (6·4%) patients with IH and seven of 126 (5·6%) controls had anti-tTGAb (P = 0·81). There was no difference in the clinical and biochemical parameters at diagnosis and during long-term follow-up of 7·2 ± 4·8 year (mean serum total calcium = 1·88 ± 0·16 vs 1·82 ± 0·36 mmol/l, P = 0·52; phosphorus = 1·81 ± 0·17 vs 1·87 ± 0·36 mmol/l, P = 0·53) in IH patients with and without anti-tTGAb. Although CaSRAb positivity was comparable in the two groups, IH patients with anti-tTGAb had higher TPOAb positivity (45·5% vs 12·8%, P = 0·02). Coeliac disease was diagnosed in only 2/9 patients with IH on biopsy, both of whom showed improved calcaemic control with a gluten-free diet. CONCLUSION: The prevalence of coeliac autoimmunity (6·4%) and coeliac disease (1·2%) in patients with IH seems to be similar to that in the general population. Notwithstanding this modest prevalence, it is important to be aware of the potential occurrence of coeliac disease with IH and the beneficial effect of a gluten-free diet on calcium control.


Assuntos
Doença Celíaca/imunologia , Dieta Livre de Glúten , Hipercalcemia/dietoterapia , Hipoparatireoidismo/imunologia , Adolescente , Adulto , Autoanticorpos/imunologia , Biópsia , Doença Celíaca/diagnóstico , Doença Celíaca/epidemiologia , Comorbidade , Duodenoscopia , Feminino , Seguimentos , Humanos , Hipercalcemia/embriologia , Hipoparatireoidismo/epidemiologia , Índia/epidemiologia , Intestinos/patologia , Masculino , Pessoa de Meia-Idade , Prevalência , Transglutaminases/imunologia , Adulto Jovem
15.
J Gastroenterol Hepatol ; 31(4): 856-64, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26519215

RESUMO

BACKGROUND AND AIM: Acute on chronic liver failure (ACLF) because of precipitating factors (variceal bleed/infections) identifies cirrhotics at risk for high short-term mortality. Information on ACLF because of acute hepatic insults is lacking. The aim of the study was to evaluate acute hepatic insults in ACLF and their effect on the course and outcome. METHODS: In a prospective study, 213 consecutive patients of ACLF because of acute hepatic insults were included. Etiology of acute hepatic insult, frequency of silent, and overt chronic liver disease (CLD), organ failure (OF), and outcomes were assessed. Prognostic models such as model for endstage liver disease (MELD), acute physiology and chronic health evaluation (APACHE II), and chronic liver failure-sequential organ failure (CLIF-SOFA) were evaluated. RESULTS: Etiologies of acute hepatic insult were hepatitis virus(es)- 81 (38%; HBV-42, HEV-39), continuous alcohol consumption-77 (33.3%), antituberculosis drugs-11 (5.2%), autoimmune hepatitis flare-5(2.3%), cryptogenic-44 (20.7%). The common causes of CLD were alcohol (n = 85/40%), HBV(n = 52/24%), and cryptogenic(n = 50/20%). The MELD, APACHE II, and CLIF-SOFA scores were similar among silent and overt CLD and did not influence outcome. Predominant etiologies of ACLF were hepatitis virus(es) reactivation or superinfection in silent CLD(52/112, 46.4%) and alcohol among overt CLD(43/101, 43%). Independent predictors of mortality included hepatic-encephalopathy (early, HR: 4.01; advanced, HR: 6.10), serum creatinine ≥1.5 mg/dl (HR: 4.53), CLIF-SOFA ≥8(HR: 1.69), and etiology of acute hepatic insult (alcohol, HR: 4.08; cryptogenic, HR: 3.18). HEV-ACLF had lower mortality (12.8% vs. 33-54% in other etiologies;P < 0.001). OF was major determinant of mortality. With increasing number of OF, mortality increased linearly(P = 0.001). CONCLUSIONS: Hepatitis virus(es) and continuous alcohol consumption are important causes of ACLF caused by acute hepatic insults. HEV-ACLF has lower mortality. OF is an important prognostic predictor.


Assuntos
Insuficiência Hepática Crônica Agudizada/etiologia , Insuficiência Hepática Crônica Agudizada/mortalidade , Insuficiência de Múltiplos Órgãos/etiologia , Adulto , Alcoolismo/complicações , Antituberculosos/efeitos adversos , Feminino , Previsões , Hepatite Autoimune/complicações , Hepatite Crônica/complicações , Hepatite Viral Humana/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Adulto Jovem
16.
J Obstet Gynaecol India ; 65(4): 255-8, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26243993

RESUMO

OBJECTIVE: Adenomatoid tumor is a benign neoplasm of mesothelial origin encountered most often in the male and female genital tracts. This tumor has a distinct morphology and is characterized by anastomosing and variably sized tubules lined by epithelioid and flattened cells. Only 4 cases of the extremely rare leiomyoadenomatoid variant are on record. We report 5 cases of adenomatoid tumor including 3 cases of leiomyoadenomatoid tumor of the uterus, which is an extremely rare variant of adenomatoid tumor, difficult to recognize on morphology. METHOD: A detailed histopathological review of all the uterine tumor diagnosed as fibroid and adenomatoid tumor over the period of 4 years was done. RESULTS: A total of 5 cases of adenomatoid tumor were documented including 3 cases of leiomyoadenomatoid variant. CONCLUSION: Leiomyoadenomatoid variant of adenomatoid tumor often missed both on imaging and histopathological examination and hence needs to be recognized as a distinct morphological entity.

17.
World J Gastroenterol ; 20(46): 17532-40, 2014 Dec 14.
Artigo em Inglês | MEDLINE | ID: mdl-25516668

RESUMO

AIM: To assess the prognostic significance of cathepsin L, a cysteine protease that degrades the peri-tumoral tissue, in patients with pancreatic cancer. METHODS: Plasma samples from 127 pancreatic cancer patients were analyzed for cathepsin L levels by ELISA. Out of these patients, 25 underwent surgery and their paraffin-embedded tissue was analyzed for cathepsin L expression by immunohistochemistry. Survival of patients and clinicopathological parameters was correlated with cathepsin L expression in plasma and tissue using appropriate statistical analysis. RESULTS: The mean (± SD) cathepsin L in plasma samples of pancreatic cancer patients was 5.98 ± 2.5 ng/mL that was significantly higher compared to the levels in healthy controls (3.83 ± 0.45) or chronic pancreatitis patients (3.97 ± 1.06). Using ROC curve, a cut-off level of 5.0 ng/mL was decided for survival analysis. Elevated plasma levels of cathepsin L were found to be associated with poor prognosis (P = 0.01) in multivariate analysis. The plasma levels of the protease decreased after surgery. Though no significant correlation was seen between plasma and tissue expression of this protease, a trend did emerge that high cathepsin L expression in tissue correlated with its high levels in plasma. CONCLUSION: Cathepsin L levels in plasma of pancreatic cancer patients may be used as a potential prognostic marker for the disease.


Assuntos
Biomarcadores Tumorais/sangue , Catepsina L/sangue , Neoplasias Pancreáticas/enzimologia , Idoso , Área Sob a Curva , Antígeno CA-19-9/sangue , Estudos de Casos e Controles , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Imuno-Histoquímica , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Neoplasias Pancreáticas/sangue , Neoplasias Pancreáticas/mortalidade , Neoplasias Pancreáticas/cirurgia , Valor Preditivo dos Testes , Prognóstico , Modelos de Riscos Proporcionais , Curva ROC , Fatores de Risco , Regulação para Cima
18.
Biomed Res Int ; 2014: 401245, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24864239

RESUMO

Serous ovarian cancer (SOC) is a significant cause of morbidity and mortality in females with poor prognosis because of advanced stage at presentation. Recently, neoadjuvant chemotherapy (NACT) is being used for management of advanced SOC, but role of tissue biomarkers in prognostication following NACT is not well established. The study was conducted on advanced stage SOC patients (n = 100) that were treated either conventionally (n = 50) or with NACT (n = 50), followed by surgery. In order to evaluate the expression of tissue biomarkers (p53, MIB1, estrogen and progesterone receptors, Her-2/neu, E-cadherin, and Bcl2), immunohistochemistry and semiquantitative scoring were done following morphological examination. Following NACT, significant differences in tumor histomorphology were observed as compared to the native neoplasms. MIB 1 was significantly lower in cases treated with NACT and survival outcome was significantly better in cases with low MIB 1. ER expression was associated with poor overall survival. No other marker displayed any significant difference in expression or correlation with survival between the two groups. Immunophenotype of SOC does not differ significantly in samples from cases treated with NACT, compared to upfront surgically treated cases. The proliferating capacity of the residual tumor cells is less, depicted by low mean MIB1 LI. MIB 1 and ER inversely correlate with survival.


Assuntos
Biomarcadores Tumorais/metabolismo , Neoplasias Císticas, Mucinosas e Serosas/metabolismo , Neoplasias Císticas, Mucinosas e Serosas/terapia , Neoplasias Ovarianas/metabolismo , Neoplasias Ovarianas/patologia , Forma Celular , Feminino , Humanos , Imuno-Histoquímica , Estimativa de Kaplan-Meier , Pessoa de Meia-Idade , Terapia Neoadjuvante , Proteínas de Neoplasias/metabolismo , Neoplasias Císticas, Mucinosas e Serosas/patologia , Neoplasias Ovarianas/terapia , Prognóstico
19.
Indian J Gastroenterol ; 33(2): 114-8, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23996798

RESUMO

BACKGROUND: While anemia occurs in 80 % to 90 % of patients with celiac disease (CD), it may be the sole manifestation of CD. The prevalence of CD in Indian patients with nutritional anemia is not known. PATIENTS AND METHODS: Adolescent and adult patients presenting with nutritional anemia were prospectively screened for CD using IgA anti-tissue transglutaminase antibody (anti-tTG Ab) followed, if positive, by upper gastrointestinal endoscopy and duodenal biopsy. RESULTS: Ninety-six patients [mean ± SD age 32.1 ± 13.1 years and median duration of anemia 11 months (range 1 to 144 months)] were screened. Of these patients, 80 had iron deficiency anemia, 11 had megaloblastic anemia, and 5 had dimorphic anemia. Seventy-three patients were on hematinics and 36.4 % had received blood transfusions. Nineteen had a history of chronic diarrhea and the mean ± SD duration of diarrhea in them was 9.7 ± 35.8 months. IgA anti-tTG Ab was positive in 13 patients, of whom 12 agreed to undergo duodenal biopsy. Ten patients had villous atrophy (Marsh grade 3a in three, 3b in one, and 3c in six) and two did not. Thus, 10 patients with nutritional anemia (iron deficiency 9, vitamin B12 deficiency 1) were diagnosed to have CD. On multivariate logistic regression, age, duration of symptoms, and presence of diarrhea were found to be the predictors of CD. All the patients with CD were put on gluten-free diet and with iron and vitamin supplementations and showed a significant improvement in hemoglobin concentration. CONCLUSIONS: CD screening should be included in the work up of otherwise unexplained nutritional anemia.


Assuntos
Anemia/epidemiologia , Anemia/etiologia , Doença Celíaca/epidemiologia , Centros de Atenção Terciária/estatística & dados numéricos , Adolescente , Adulto , Anemia/diagnóstico , Anemia/terapia , Transfusão de Sangue , Doença Celíaca/complicações , Doença Celíaca/diagnóstico , Doença Celíaca/terapia , Dieta Livre de Glúten , Feminino , Ácido Fólico/administração & dosagem , Hematínicos/administração & dosagem , Humanos , Índia/epidemiologia , Ferro/administração & dosagem , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Prospectivos , Resultado do Tratamento , Vitamina B 12/administração & dosagem , Adulto Jovem
20.
Diagn Cytopathol ; 42(8): 726-31, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24376261

RESUMO

Breast carcinoma shows amplification/overexpression of Her-2/neu in ∼20-30% of cases. The determination of Her-2/neu expression accurately is vital in clinical practice as it has significant predictive value and eligibility for anti Her-2/neu therapy. Amplification and overexpression of Her-2/neu gene is traditionally identified by fluorescence in situ hybridization (FISH) and immunohistochemistry (IHC) on tissue sections; only a few studies have evaluated feasibility of these techniques on cytological smears. One hundred cases of breast cancer with fine-needle aspiration cytology (FNAC) samples and corresponding surgically resected specimen were selected. Immunocytochemistry (ICC) and FISH for Her-2/neu was done on FNA smears, whereas IHC was performed on corresponding tissue sections. Diagnostic accuracy of ICC was 99% when compared with IHC. Comparison of FISH results with IHC showed 100% concordance. Unlike many centers in West, FNAC is still routinely performed in developing countries like India where vast majority of breast cancer cases present as palpable lumps. The high rates of accuracy of ICC and FISH for Her-2/neu detection can make FNAC a relevant first line of investigation as a cost effective model with a rapid turn-around time, providing complete information necessary for initial management of breast cancer patients.


Assuntos
Neoplasias da Mama/metabolismo , Neoplasias da Mama/patologia , Imuno-Histoquímica/métodos , Hibridização in Situ Fluorescente/métodos , Receptor ErbB-2/metabolismo , Centros de Atenção Terciária , Adulto , Idoso , Idoso de 80 Anos ou mais , Biópsia por Agulha Fina , Feminino , Humanos , Índia , Pessoa de Meia-Idade
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...