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1.
Rev. Esc. Enferm. USP ; 48(spe): 192-198, 08/2014. tab
Article in English | LILACS, BDENF | ID: lil-731283

ABSTRACT

Objective To identify the difficulties of families with children and/or adolescents with mental disorder. Method This is an integrative review. In December 2013, an electronic search was performed on Latin American Caribbean Literature on Health Sciences databases (LILACS) and on Electronic Medicus Index of the National Library of Medicine (MEDLINE) indexed in the Health Virtual Library (BVS) using a combination of descriptors and boolean operators as follows: mental disorders and child or adolescent and caregivers and/not health staff. Results 557 studies were identified, of which 15 were selected for this study. The findings indicated difficulties related to the care for or to interaction with children/adolescents with mental disorder. Conclusion The studies revealed difficulties related to everyday practices of care and feelings expressed during care practices, as well as in relationships with children or adolescents with mental disorder.

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Objetivo Identificar las dificultades de las familias con niños y/o adolescentes con desórdenes mentales. Método Se trata de una revisión integradora. Una búsqueda electrónica se realizó en diciembre de 2013, en la base de datos de la literatura caribeña Latinoamericano de Ciencias de la Salud (LILACS) y en el Índice de Electronic Medicus de la Biblioteca Nacional de Medicina (MEDLINE) indexados en la Biblioteca Virtual en Salud (BVS), utilizando combinación de descriptores y operadores booleanos transtornos mentales and niño and adolescentes and cuidadores and/not personal de salud. Resultados Se identificaron 557 estudios, de los cuales 15 fueron considerados para este estudio. Los hallazgos indican dificultades relacionadas con la atención o estar con los niños o adolescentes con trastornos mentales. Conclusión Se evidenciaron las dificultades relacionadas con las prácticas cotidianas y con los sentimientos durante la atención de quien vive con un niño o adolescente con trastornos mentales.
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Objetivo Identificar as dificuldades das famílias de crianças ou adolescentes com transtornos mentais. Método Trata-se de uma revisão integrativa realizada nas bases de dados da Literatura Latino-Americana do Caribe em Ciências da Saúde (LILACS) e no Index Medicus Eletrônico da National Library of Medicine (MEDLINE) indexadas na Biblioteca Virtual em Saúde (BVS) utilizando a combinação dos descritores e operadores booleanos transtornos mentais and criança or adolescente and cuidadores and/not pessoal de saúde, em dezembro de 2013. Resultados Foram identificados 557 estudos, dos quais 15 foram selecionados para este estudo. Os achados evidenciaram dificuldades relacionadas ao cuidado ou convívio com crianças ou adolescentes com transtorno mental. Conclusão Foram evidenciadas dificuldades relacionadas às práticas cotidianas e aos sentimentos manifestos durante o convívio e o cuidado de crianças ou adolescentes com transtornos mentais.
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Subject(s)
Humans , Carcinoma, Hepatocellular/immunology , Histocompatibility Antigens Class I/metabolism , Liver Neoplasms/immunology , Cancer Vaccines/immunology , Cancer Vaccines/pharmacology , Carcinoma, Hepatocellular/therapy , Immunohistochemistry , Liver Neoplasms/therapy , T-Lymphocytes, Cytotoxic/immunology , Tumor Cells, Cultured
2.
Indian J Pathol Microbiol ; 2011 Jul-Sept 54(3): 448-453
Article in English | IMSEAR | ID: sea-142023

ABSTRACT

Background: Hepatocellular carcinoma (HCC) is notorious for poor prognosis with limited therapeutic options. A better understanding of the role of regulatory T-cells (Tregs) in HCC is important for design of immunotherapy based clinical protocol. The objective of the present study was to evaluate the presence of Tregs in tumor microenvironment in patients with HCC compared to chronic hepatitis (CH). Materials and Methods: The frequency of CD4 + CD25 + Treg cells was evaluated from peripheral blood (PB) of 28 patients of HCC and 30 controls including CH cases and healthy donors using flowcytometry. Intratumoral Treg were also analyzed in tissue samples from 17 HCC cases and 15 CH cases. In addition the expression of FOXP3 and CTLA-4 was also studied by RT-PCR. Results: Frequency of CD4 + CD25 + cells in the PBMCs of HCC cases was significantly higher than in HC (10.8 ± 7.64 vs 3.05 ± 1.30, P < 0.005) and CH patients (2.88 ± 1.92, P < 0.005). Also Treg population was significantly higher in HCC tumor microenvironment compared to CH biopsies (15.8 ± 5.32 vs 5.51 ± 3.40, P < 0.05). Expression of FOXP3 and CTLA-4 was also significantly higher in HCC patients ( P < 0.05) compared to CH group. Conclusions: We provide evidence of an increased population of Treg not only in the PB but also in tumor microenvironment of HCC patients, suggesting association of enhanced Treg activity with poor immune responses to tumor antigens. These findings may in future play a significant role in designing immunotherapeutic approaches in HCC.


Subject(s)
Adult , CD4 Antigens/analysis , CTLA-4 Antigen/analysis , Carcinoma, Hepatocellular/immunology , Carcinoma, Hepatocellular/pathology , Case-Control Studies , Female , Flow Cytometry , Forkhead Transcription Factors/analysis , Humans , Interleukin-2 Receptor alpha Subunit/analysis , Liver/pathology , Liver Neoplasms/immunology , Liver Neoplasms/pathology , Male , Middle Aged , T-Lymphocytes, Regulatory/chemistry , T-Lymphocytes, Regulatory/immunology
3.
Article in English | WPRIM | ID: wpr-634979

ABSTRACT

This study investigated the changes of CD4(+) CD25(+) regulatory T cells (Tregs) in peripheral blood of patients with hepatocellular carcinoma before and after transcatheter arterial chemoembolization (TACE). The proportion of CD4(+) CD25(+) Tregs among CD4(+) T lymphocytes in peripheral blood of 33 patients with hepatocellular carcinoma was determined by flow cytometry before, 1 week and 1 month after TACE. And 25 healthy volunteers served as control. One month after TACE, the patients were divided into two groups: 22 in group A, who were in stable condition or getting better; and 10 in group B, who were deteriorating. One patient died and was excluded. The results showed that the percentage of CD4(+)CD25(+) Tregs among CD4(+) T lymphocytes did not significantly change in the 33 patients 1 week after TACE as compared with that before TACE, however, the difference was significant (P<0.01) between the patients with hepatocellular carcinoma and the healthy subjects. The percentage of CD4(+) CD25(+) Tregs among CD4(+) T lymphocytes in group A 1 month after TACE was decreased significantly in comparison with that before and 1 week after TACE (P<0.01), whereas, that in group B was increased significantly 1 month after TACE (P<0.01). It was concluded that patients with hepatocellular carcinoma had a higher proportion of CD4(+)CD25(+) Tregs in peripheral blood. TACE did not significantly affect the level of CD4(+) CD25(+) Tregs within short time (such as 1 week). The proportion of CD4(+)CD25(+) Tregs in peripheral blood 1 month after TACE was related to the prognosis of hepatocellular carcinoma.


Subject(s)
Antineoplastic Agents/administration & dosage , Carcinoma, Hepatocellular/immunology , Carcinoma, Hepatocellular/therapy , Chemoembolization, Therapeutic/methods , Liver Neoplasms/immunology , Liver Neoplasms/therapy , T-Lymphocytes, Regulatory/immunology
4.
Saudi Medical Journal. 2008; 29 (9): 1235-1240
in English | IMEMR | ID: emr-90231

ABSTRACT

This study was performed in China Medical University Shenyang, China from September 2007-February 2008. The design of the study was to modify DCs with GPC3 and to be used to activate human T cells and elicit a cell-mediated immune response against HepG2 in vitro. The GPC3 gene expression was identified by western blot and immunocytochemistry. The proliferation of responder cells and cytotoxicity against HepG2 were examined by water-soluble tetrazolium salt -1 and lactate dehydrogenase assay respectively. The interferon-y [IFN-gamma] secreted was detected by ELISA assay. Both Western blot and immunocytochemical analysis assured the validity of GPC3 transfection. Glypican3 modified DCs were potent in inducing responder cells proliferation and IFN-gamma production. The cytotoxicity in the group of GPC3 transfected DCs were [38.90 +/- 0.95%] at the ratio of effector cells/target cells E/T:100:1, 30.83 +/- 1.24% at the ratio of E/T:50:1, and 23.84 +/- 0.65% at the ratio of E/T:10:1, respectively [which is significant compared with other groups, p<0.001]. And the GPC3 modified DCs showed ability to induce high specific cytotoxicity against HepG2 in vitro. The effector cells stimulated with DCs that were transfected with pEF-hGPC3 plasmid could effectively lyse GPC3 expressing HepG2 cells, which suggested that those genetically engineered DCs have the potential to serve as novel vaccine for HCC


Subject(s)
Humans , Dendritic Cells , Carcinoma, Hepatocellular/therapy , Carcinoma, Hepatocellular/immunology , Antibody-Dependent Cell Cytotoxicity , Carcinoma, Hepatocellular/genetics , Interferon-gamma , Enzyme-Linked Immunosorbent Assay , Immunohistochemistry
5.
West Indian med. j ; 55(6): 403-408, Dec. 2006.
Article in English | LILACS | ID: lil-472071

ABSTRACT

Hepatocellular carcinoma (HCC) is one of the most common malignant tumours in the world, especially in Guangxi, China. The causes and mechanism of its tumourigenesis and development have not been completely clarified Some studies revealed that the hepatic local cellular immune function was one of the factors. In the present study, the local micro-environmental immune status was explored by investigating the number, distribution and function of CD3, CD57, CD20, CD68, and granzyme B (GrB) positive cells in 60 patients with HCC and 62 patients with liver cirrhosis (LC) and its relationship with the prognosis of the patients. The results showed that the number of T and B lymphocytes and natural killer (NK) cells in the liver of HCC patients was significantly higher than that in the LC and normal controls; while the number of macrophages (Mphi) was significantly lower The number of Mphi in the tissues decreased successively with the decrease of HCC differentiation; GrB-expressing cells in the liver predominantly consisted of CD57 positive cells. The number of NK cells, B lymphocytes and GrB-expressing cells in the cancerous tissues of stage I and II was significantly higher than that of stages III and IV. The number of T lymphocytes, NK cells, Mphi, and GrB-expressing lymphocytes in HCC cases without metastasis in 15 months was significantly higher than in the metastatic counterparts. The number of T and B lymphocytes, NK cells, and GrB-expressing cells decreased in patients with the progression of the HCC. These results suggest that the number of T and B lymphocytes, NK cells, Mphi and GrB-positive lymphocytes might be important markers in the estimation of hepatic local immune status and be useful factors for predicting the prognosis of HCC patients.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Carcinoma, Hepatocellular/immunology , Liver Cirrhosis/immunology , Health Status , Disease Progression , B-Lymphocytes , Liver Cirrhosis/physiopathology , Killer Cells, Natural , Biomarkers , Prognosis , Retrospective Studies , T-Lymphocytes
6.
Indian J Pathol Microbiol ; 2006 Jul; 49(3): 341-4
Article in English | IMSEAR | ID: sea-74941

ABSTRACT

Diagnosis of hepatocellular carcinoma (HCC) is not always easy on simple hematoxylin and eosin (H&E) stain. The diagnostic problems arise when tumor shows pseudoglandular, pleomorphic or clear cell differentiation. Various tumors markers have been described with varying sensitivity and specificity. Monoclonal antibody Hep Par 1 (OCH1E5) which is specific for hepatocytes offers great help in separation of these tumors. The aim of the present study was to determine utility of Hep Par 1 (OCH1E5) in differentiating HCC from metastatic tumors and cholangiocarcinoma. Total of 62 cases of liver tumors obtained from biopsies, resected or autopsy specimens were included in the study. Slides having representative sections were subjected to immunohistochemistry with monoclonal antibody Hep Par 1 (Dako Corp) using avidin biotin technique with primary antibody dilution of 1:40. Adjacent nontumorous hepatocytes were taken as positive control. Slides were examined by experienced pathologist without any information of clinical or H&E diagnosis. Cases were considered positive for Hep Par 1 if tumor cells showed cytoplasmic brown colored granules. The intensity and distribution (diffuse/ focal) of immunoreactivity was noted. Subsequently immunohistochemistry results were correlated with histology and clinical diagnosis. Hep Par 1 antibody was positive in 26 (42 %) and negative in 36 (58 %) liver tumors. On correlating with H&E sections, out of 26 positive cases, 25 (89.2%) were HCC and one was the case of metastasis of mucin secreting adenocarcinoma. From 36 tumors with negative staining 3 were cases of HCC, 27 metastatic adenocarcinomas and 6 cholangiocarcinomas. Only one case of liver metastasis of mucin secreting adenocarcinoma showed positivity. None of the cases of cholangiocarcinoma showed positivity for Hep Par 1. The three HCCs which did not take up staining for Hep Par 1 were 2 cases of moderately differentiated HCC having pseudoglandular pattern and a case of well differentiated HCC with trabecular arrangement. In 11(44%) cases staining was diffuse while in 14 (56%) it was focal but intense. Hep Par 1 is a useful marker in differentiating HCC from metastaic tumors and cholangiocarcinoma with sensitivity and specificity of 89 % and 97 % respectively and positive predictive value of 96 %. However one should be aware of limitations of immunohistochemistry.


Subject(s)
Adult , Antibodies, Monoclonal/diagnosis , Antibodies, Neoplasm/diagnosis , Antigens, Neoplasm/immunology , Antigens, Surface/immunology , Biopsy , Carcinoma, Hepatocellular/immunology , Cell Differentiation/immunology , Diagnosis, Differential , Hepatocytes/immunology , Humans , Immunohistochemistry , Liver/metabolism , Liver Neoplasms/immunology , Neoplasm Metastasis , Sensitivity and Specificity , Biomarkers, Tumor/analysis
7.
Asian Pac J Allergy Immunol ; 2000 Dec; 18(4): 237-43
Article in English | IMSEAR | ID: sea-37030

ABSTRACT

Mutations of the p53 gene have been reported to be of prognostic significance in hepatocellular carcinoma (HCC). However, the clinical associations and prognostic value of anti-p53 antibodies, known to be products of the host immune response to these mutations, have been controversial. Serum anti-p53 antibodies were measured in 121 Thai patients diagnosed with HCC using a specific enzyme-linked immunosorbent assay (ELISA) kit. The clinical/pathological characteristics of the patients were compared with respect to the presence of serum anti-p53 antibodies. Cox regression analysis was performed to assess factor interaction and association with survival. Anti-p53 antibodies were detected in 13.2% (16 of 121) of our patients. There were no differences between groups with regard to age, sex, viral markers (HBsAg or anti-HCV), severity of liver disease and tumor advancement. The median survival rates for patients positive and negative for anti-p53 antibodies were 4.0 and 3.0 months, respectively (p = 0.443, by log-rank test). Multivariate analysis demonstrated that an advanced Okuda stage, lack of therapy and presence of portal vein thrombosis were independent factors related to the prognosis of the patients. Nonetheless, the presence of anti-p53 antibodies did not constitute a predictive variable associated with a poorer prognosis. Serum assay of anti-p53 antibodies, although rapid and easily performed, may not be suitable as an alternative to molecular detection of mutations in assessing tumor advancement and prognosis of patients with HCC.


Subject(s)
Adult , Aged , Aged, 80 and over , Antibodies, Neoplasm/blood , Carcinoma, Hepatocellular/immunology , Female , Humans , Liver Neoplasms/immunology , Male , Middle Aged , Predictive Value of Tests , Prognosis , Proportional Hazards Models , Survival Rate , Thailand/epidemiology , Tumor Suppressor Protein p53/immunology
8.
Scientific Journal of Al-Azhar Medical Faculty [Girls] [The]. 2000; 21 (Supp. 1): 1269-1278
in English | IMEMR | ID: emr-55678

ABSTRACT

The aim of this study was to estimate the levels of TNF alpha and ILI beta cytokines in 35 HCC patients and ten healthy controls in order to determine the implication of these cytokines in the pathogenesis of such conditions and subsequently establishing a therapeutic scheme. An estimation of serum TNF alpha and ILI beta levels was done using ELISA technique. The results showed a statistical significant elevation of TNF alpha and ILI beta levels in HCC patients when compared with the control group with a positive correlation between these two cytokines. It was recommended to use TNF alpha mutated protein by altering amino acid sequences to modulate affinities to TNF alpha receptors to be active against HCC without severe toxicities


Subject(s)
Humans , Male , Female , Carcinoma, Hepatocellular/immunology , Tumor Necrosis Factor-alpha , Interleukin-1 , Cytokines , Sclerotherapy , Ultrasonography
9.
Indian J Pathol Microbiol ; 1996 Jul; 39(3): 211-5
Article in English | IMSEAR | ID: sea-75614

ABSTRACT

Alexander cell line, an human hepatocellular carcinoma derived cell line which has the property of secreting HBsAg in the supernatant was used to study the antiviral property of phyllanthus amarus. Aquous extract of Phyllanthus amarus was evaluated for its in vitro ability to inhibit HBsAg secretion on a dose dependent manner. It was seen that P. amarus at 1mg/ml concentration on a single dose inhibited the secretion of HBsAg for a period of 48 hours. This experiment proved the anti hepatitis B virus property of P. amarus at cellular level and further confirmed its beneficial use in the treatment of acute and chronic hepatitis B and healthy carriers of HBV.


Subject(s)
Antineoplastic Agents, Phytogenic/pharmacology , Antiviral Agents/pharmacology , Carcinoma, Hepatocellular/immunology , Hepatitis B Surface Antigens/drug effects , Humans , Liver Neoplasms/immunology , Plant Extracts/pharmacology , Plants, Medicinal/chemistry , Tumor Cells, Cultured
10.
Acta méd. colomb ; 17(6): 453-56, nov.-dic. 1992. ilus
Article in Spanish | LILACS | ID: lil-183250

ABSTRACT

Se peresenta el caso de un paciente de sexo masculino de 56 años de edad con antecedentes de hemofilia B, que recibió suplencia de factor IX para un procedimiento quirúrgico y diez años más tarde se encuentra con cuadro de hepatitis crónica por virus C, cirrosis secundaria asociada a una masa hepática compatible con hepatocarcinoma comprobada por ultrasonografía, tomografía axial computarizada,arteriografía hepática, y por los valores anormalmente altos de alfafetoproteina. El virus de la hepatitis C recientemente identificado, es responsable de al menos 85 por ciento de la llamadas hepatits No-A-No-B y puede ser factor desencadenante de cirrosis y hepatocarcinoma, por lo cual es indispensable su identificación y prevención adecuadas.


Subject(s)
Humans , Male , Middle Aged , Carcinoma, Hepatocellular/complications , Carcinoma, Hepatocellular/diagnosis , Carcinoma, Hepatocellular/etiology , Carcinoma, Hepatocellular/immunology , Carcinoma, Hepatocellular/microbiology , Carcinoma, Hepatocellular/physiopathology , Carcinoma, Hepatocellular/virology , Liver Cirrhosis/complications , Liver Cirrhosis/diagnosis , Liver Cirrhosis/etiology , Liver Cirrhosis/physiopathology , Liver Cirrhosis/virology , Hepacivirus/classification , Hepacivirus/growth & development , Hepacivirus/immunology , Hepacivirus/isolation & purification , Hepacivirus/pathogenicity , Hepacivirus/physiology
11.
GEN ; 44(4): 343-8, oct.-dic.1990. tab
Article in Spanish | LILACS | ID: lil-100659

ABSTRACT

El reciente descubrimiento de un componente antigénico del virus causante de la Hepatitis No-A No-B post-transfusional, hizo posible caracterizar dicho agente el cual se ha denominado Virus de la Hepatitis C y permitió detectar un anticuerpo presente en personas infectadas (anti-VHC) utilizando el antígeno C-100 derivado de una región no estructural del genoma viral. El objetivo del presente trabajo es determinar en nuestro medio la frecuencia con que se presenta el anticuerpo descrito detectado mediante técnica de inmunoensayo enzimatico ELISA, utilizando el Kit comercial de Ortho Diagnostic Systems Inc. Los resultados obtenidos fueron los siguientes: Personal de Salud (médicos, enfermeras y personal del laboratorio): 102 personas estudiadas, dos positivas (1,96%), 16 pacientes en hemodiálisis crónica: 6 positivos (33%); 20 sujetos con anticuerpos contra el virus de la inmunodeficiencia humana confirmado mediante técnicas de Western blot: 7 positivos (35,4%). De 10 pacientes con hepatitis crónica Antígeno de superficie negativos, siete (70%) resultaron positivos para anti-VHC; de 25 pacientes con cirrosis hepática: 12 positivos (48%), de 2 pacientes con hepatocarcinoma 1 positivo (50%). Se constató además una frecuente asociación de anticuerpo anti-core total contra el virus B en los pacientes con hepatopatías. Losresultados sugieren que el virus C puede estar jugando un papel etiológico importante en pacientes con afecciones hepáticas en nuestro medio


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Health Personnel , Hepacivirus/immunology , Hepatitis Antibodies/analysis , Liver Diseases/immunology , Aged, 80 and over , Carcinoma, Hepatocellular/epidemiology , Carcinoma, Hepatocellular/immunology , Chronic Disease , Enzyme-Linked Immunosorbent Assay , Hepatitis C/epidemiology , Hepatitis C/immunology , HIV Antibodies/analysis , Liver Cirrhosis/epidemiology , Liver Cirrhosis/immunology , Liver Diseases/epidemiology , Liver Neoplasms/epidemiology , Liver Neoplasms/immunology , Prevalence , Renal Dialysis , Risk Factors , Venezuela/epidemiology
12.
Acta gastroenterol. latinoam ; 19(1): 21-30, jan.-mar. 1989. tab
Article in Spanish | LILACS | ID: lil-76189

ABSTRACT

Data provided by 51 voluntaru blood donnors identified as asymptomatic HBsAg carriers five to ten years (x = 7.5 years) before their inclusion in the study are analysed towards their long-term evolution. HBsAg clearance was estimated 2.5% yearly and 83.9% of those remaining positive showed the classical non-replicative serological pattern,; another 12.9% were negative for both HBeAg - Anti HBe (serovonversion window?), one of them presenting raised ASATALAT levels and enhanced histological activity (lobular chronic hepatitis). Neither alpha-fetoprotein seric levels (RIA) nor liver ultrasonography demonstrated hepato cellular carcinoma suspicion signs in 35 HBsAg positive cases to this methods; ASAT-ALAT levels raised over two fold the normal superior limit ion only 11.4%, and neither agressive chronic liver disease nor hepatocyte dissplasia was showed in 17 biopsed cases (70.6% normal; 23.6% chronic reactive or chronic persistent hepatitis; 5.8% chronic liobular hepatitis). One out of five patients biopsed with a seven years interval showed histologic worsening


Subject(s)
Humans , Hepatitis B Surface Antigens/analysis , Carcinoma, Hepatocellular/immunology , Hepatitis B virus/pathogenicity , Hepatitis B/immunology , Liver Neoplasms/immunology
15.
Rev. paul. med ; 103(1): 23-31, jan.-fev. 1985.
Article in Portuguese | LILACS | ID: lil-1317

ABSTRACT

O autor apresenta sua opiniäo, baseada na bibliografia citada, quanto ao emprego da vacina para a hepatite B. Após comentar alguns aspectos das hepatites, principalmente a causada pelo vírus B, e em razäo da tecnologia atualmente utilizada na preparaçäo da vacina (material humano), o autor chama a atençäo para a necessidade de se definir critérios rígidos na escolha dos indivíduos a serem vacinados, inclusive com a determinaçäo laboratorial da existência ou näo de imunidade prévia


Subject(s)
Hepatitis B/immunology , Viral Hepatitis Vaccines , Antibody Formation , Carcinoma, Hepatocellular/immunology , Hepatitis B Surface Antigens , Immunity, Cellular , Immunization , Hepatitis B virus/immunology
16.
Medicina (B.Aires) ; 45(3): 235-9, 1985. ilus
Article in Spanish | LILACS | ID: lil-26656

ABSTRACT

Se estudiaron 18 hepatocarcinomas en los que se investigó mediante el método de peroxidasa-antiperoxiadasa la presencia de alfa-1-antitripsina (A1AT), alfa feto proteína (AFP) y el antígeno de superficie de la hepatitis B (HBsAg) en el tejido tumoral y del parénquima hepático no neoplásico. Se halló positividad para A1AT en 13 casos (72 por ciento), siendo la tinción citoplasmática de tipo globular o difusa. La AFP fue positiva en 4 casos (22%) en forma globular. Todos los casos positivos para AFP lo fueron también para A1AT. La presencia de HBsAg fue detectada en dos casos (11%) en el citoplasma de las células tumorales. De los 8 casos en que contaba con parénquima hepático no neoplásico, en 2 se observó positividad difusa para A1AT. Este trabajo demuestra la alta frecuencia de positividad de A1AT en carcinomas hepatocelulares. Si bien no se trata de un marcador tumoral específico es de ayuda diagnóstica en un tumor histológicamente compatible con esta neoplasia. La AFP es mucho más específica aunque la frecuencia con que fue hallada es mucho menor. La positividad para HBsAg es un dato más sobre la posible vinculación etiológica entre el virus de la hepatitis B y el desarrollo de estos tumores


Subject(s)
Carcinoma, Hepatocellular/immunology , Liver Neoplasms/immunology , alpha 1-Antitrypsin/blood , alpha-Fetoproteins/blood , Hepatitis B Surface Antigens/blood , Immunoenzyme Techniques
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