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1.
Rev. bras. epidemiol ; 25: e220004, 2022. tab, graf
Article in English | LILACS | ID: biblio-1360903

ABSTRACT

ABSTRACT: Objective: This study aimed to describe and analyze the temporal and spatial distribution of deaths due to hepatocellular carcinoma (HCC) associated with hepatitis B (HBV) and C viruses (HCV) in the state of São Paulo. Methods: This is an ecological study of HCC deaths associated with HBV and HCV in the state of São Paulo, from 2009 to 2017, with data from the Mortality Information System (SIM). The temporal trend was analyzed by linear regression with Prais-Winsten estimation. Deaths were described according to sociodemographic characteristics by means of absolute and relative frequencies and were spatially distributed according to the regional health department. Results: It is found that 26.3% of deaths due to HCC were associated with HBV or HCV. A higher proportion of deaths due to HCC associated with HCV was observed (22.2%) when compared to HBV (3.9%). The mortality rate due to HCC associated with HBV showed a downward trend, and the mortality rate due to HCC associated with HCV showed a steady trend. Deaths of males, white individuals, those who aged from 50 to 59 years, and those who had 8-11 years of schooling predominated. Spatial analysis revealed a heterogeneous distribution of deaths in the state of São Paulo. Conclusions: The downward trend in mortality rates due to HCC associated with HBV shows an important advance in the disease control. However, the mortality rate due to HCC associated with HCV has remained stable throughout the study period. The spatial distribution of deaths may contribute to raise hypotheses for deeper knowledge of these diseases in the regions.


RESUMO: Objetivos: Este estudo tem como objetivo descrever e analisar a distribuição temporal e espacial dos óbitos por carcinoma hepatocelular associados às hepatites virais B e C no estado de São Paulo. Métodos: Estudo ecológico dos óbitos por carcinoma hepatocelular associados a hepatites virais B e hepatites virais C no estado de São Paulo, de 2009 a 2017, com dados do Sistema de Informação sobre Mortalidade. A tendência temporal foi analisada por regressão linear, com método de Prais-Winsten. Os óbitos foram descritos segundo as características sociodemográficas, por meio de frequências absolutas e relativas, e foram espacialmente distribuídos segundo departamento regional de saúde. Resultados: Dos óbitos por carcinoma hepatocelular, 26,3% foram associados a hepatites virais B ou hepatites virais C. Observou-se maior proporção de óbitos por carcinoma hepatocelular associado a hepatites virais C (22,2%) quando comparada àquela associada a hepatites virais B (3,9%). A taxa de mortalidade por carcinoma hepatocelular associado a hepatites virais B apresentou tendência de queda, no entanto a taxa de mortalidade por carcinoma hepatocelular associado a hepatites virais C apresentou tendência estacionária. Predominaram óbitos de pacientes do sexo masculino, de cor branca, de 50-59 anos e com oito a 11 anos de estudo. A análise espacial revelou distribuição heterogênea dos óbitos no estado de São Paulo. Conclusão: A tendência de queda nas taxas de mortalidade por carcinoma hepatocelular associado a hepatites virais B revela um importante avanço no controle do agravo. Entretanto, a taxa de mortalidade por carcinoma hepatocelular associado a hepatites virais C vem-se mantendo estável ao longo do período estudado. A distribuição espacial dos óbitos pode contribuir para levantar hipóteses com vistas ao conhecimento mais aprofundado desses agravos nas regiões.


Subject(s)
Humans , Male , Middle Aged , Viruses , Carcinoma, Hepatocellular/complications , Hepatitis B/complications , Liver Neoplasms , Brazil/epidemiology
2.
Chinese Medical Journal ; (24): 767-773, 2022.
Article in English | WPRIM | ID: wpr-927549

ABSTRACT

Hepatitis D virus (HDV) infection causes the most severe form of viral hepatitis with rapid progression to cirrhosis, hepatic decompensation, and hepatocellular carcinoma. Although discovered > 40 years ago, little attention has been paid to this pathogen from both scientific and public communities. However, effectively combating hepatitis D requires advanced scientific knowledge and joint efforts from multi-stakeholders. In this review, we emphasized the recent advances in HDV virology, epidemiology, clinical feature, treatment, and prevention. We not only highlighted the remaining challenges but also the opportunities that can move the field forward.


Subject(s)
Humans , Carcinoma, Hepatocellular/complications , Hepatitis B virus , Hepatitis D/epidemiology , Hepatitis Delta Virus/genetics , Liver Cirrhosis/etiology , Liver Neoplasms/complications
3.
Chinese Medical Journal ; (24): 547-556, 2022.
Article in English | WPRIM | ID: wpr-927546

ABSTRACT

Metabolic (dysfunction) associated fatty liver disease (MAFLD), previously known as non-alcoholic fatty liver disease, is the most common cause of chronic liver disease worldwide. Many risk factors contribute to the pathogenesis of MAFLD with metabolic dysregulation being the final arbiter of its development and progression. MAFLD poses a substantial economic burden to societies, which based on current trends is expected to increase over time. Numerous studies have addressed various aspects of MAFLD from its risk associations to its economic and social burden and clinical diagnosis and management, as well as the molecular mechanisms linking MAFLD to end-stage liver disease and hepatocellular carcinoma. This review summarizes current understanding of the pathogenesis of MAFLD and related diseases, particularly liver cancer. Potential therapeutic agents for MAFLD and diagnostic biomarkers are discussed.


Subject(s)
Humans , Carcinoma, Hepatocellular/complications , Liver Neoplasms/complications , Non-alcoholic Fatty Liver Disease/complications , Risk Factors
4.
Rev. méd. Chile ; 149(4): 635-640, abr. 2021. ilus, tab
Article in Spanish | LILACS | ID: biblio-1389484

ABSTRACT

Hepatocellular carcinoma (HCC) rupture is a rare complication, with a higher prevalence in countries of Asia and Europe. Its clinical manifestations can be nonspecific, from abdominal pain and bloating to hemodynamic involvement. We report a 70-year-old male patient with a history of chronic liver disease, presenting with an enlargement and ecchymosis of the scrotum, associated with abdominal bloating. The initial abdominal ultrasound study showed increased liquid content in the scrotal sac and regional edema. A CT of the abdomen and pelvis showed a liver mass with characteristics of hepatocellular carcinoma, associated with extensive hemoperitoneum that drained into the scrotal sac. The patient was treated with embolization of the right hepatic artery and later with surgical resection of the tumor mass, with a good clinical evolution.


Subject(s)
Humans , Male , Aged , Carcinoma, Hepatocellular/complications , Carcinoma, Hepatocellular/diagnostic imaging , Liver Neoplasms/complications , Rupture, Spontaneous/diagnostic imaging , Hematocele , Hemoperitoneum/etiology , Hemoperitoneum/diagnostic imaging
5.
Rev. gastroenterol. Perú ; 39(4): 374-377, oct.-dic 2019. ilus
Article in Spanish | LILACS | ID: biblio-1144626

ABSTRACT

La dermatomiositis (DM) es una miopatía inflamatoria de causa desconocida caracterizada por inflamación muscular, debilidad músculo-esquelética proximal y manifestaciones cutáneas típicas. Se ha asociado a malignidades como un síndrome paraneoplásico. Reportamos el caso de un paciente varón de 33 años, diagnosticado de hepatitis B, VHB crónico inactivo, que presentó lesiones papulares, pruriginosas y descamativas en cara, manos, zona inguinal y pies. Al examen físico se evidenció pápulas de Gottron, signo del heliotropo, debilidad muscular simétrica proximal. Se realizó una biopsia de piel donde se encontraron hallazgos compatibles con DM. Tras una ecografía abdominal se encontró una tumoración hepática, cuyo resultado en biopsia fue de carcinoma hepatocelular moderadamente diferenciado. Posteriormente se le realiza segmentectomía con lo cual síntomas de DM disminuyen. Es un caso infrecuente, y de sumo interés por lo que se decide reportar.


Dermatomyositis is an idiopathic inflammatory myopathie characterized by proximal skeletal muscle weakness, typical skin manifestations and muscle inflammation. This disease has been associated with malignancies as a paraneoplastic syndrome. We present a patient of thirty-three years diagnosed with hepatitis B, chronic inactive HBV who presents papular, pruritic and desquamative lesions on the face, hands, inguinal area and feet. At the physical examination is evidentiated Gottron's papules, heliotrope sign and proximal symmetric muscular weakness. Findings compatible with DM were found in a skin biopsy. An abdominal ultrasound revealed a liver tumor whereby a biopsy was performed and the result was a moderately differentiated hepatocellular carcinoma. Subsequently, a segmentectomy has been made and consequently the DM symptoms decreased. This case is of great interest and rare reason why we decided to reported it.


Subject(s)
Adult , Humans , Male , Hepatitis B virus , Carcinoma, Hepatocellular/complications , Hepatitis B, Chronic/complications , Dermatomyositis/etiology , Liver Neoplasms/complications , Peru , Skin/pathology , Carcinoma, Hepatocellular/virology , Carcinoma, Hepatocellular/diagnostic imaging , Dermatomyositis/pathology , Liver Neoplasms/virology , Liver Neoplasms/diagnostic imaging
6.
ABCD (São Paulo, Impr.) ; 31(1): e1360, 2018. tab
Article in English | LILACS | ID: biblio-949206

ABSTRACT

ABSTRACT Background: Liver elastography have been reported in hepatocellular carcinoma (HCC) with higher values; however, it is unclear to identify morbimortality risk on liver transplantation waiting list. Aim: To assess liver stiffness, ultrasound and clinical findings in cirrhotic patients with and without HCC on screening for liver transplant and compare the morbimortality risk with elastography and MELD score. Method: Patients with cirrhosis and HCC on screening for liver transplant were enrolled with clinical, radiological and laboratory assessments, and transient elastography. Results: 103 patients were included (without HCC n=58 (66%); HCC n=45 (44%). The mean MELD score was 14.7±6.4, the portal hypertension present on 83.9% and the mean transient elastography value was 32.73±22.5 kPa. The median acoustic radiation force impulse value of liver parenchyma was 1.98 (0.65-3.2) m/s and 2.16 (0.59-2.8) m/s in HCC group. The HCC group was significantly associated with HCV infection (OR 26.84; p<0.0001), higher levels of serum alpha-fetoprotein (OR 5.51; p=0.015), clinical portal hypertension (OR 0.25; p=0.032) and similar MELD score (p=0.693). The area under the receiver operating characteristics (AUROC) showed sensitivity and specificity for serum alpha-fetoprotein (cutoff 9.1 ng/ml), transient elastography value (cutoff value 9 kPa), and acoustic radiation force impulse value (cutoff value 2.56 m/s) of 50% and 86%, 92% and 17% and 21% and 92%, respectively. The survival group had a mean transient elastography value of 31.65±22.2 kPa vs. 50.87±20.9 kPa (p=0.098) and higher MELD scores (p=0.035). Conclusion: Elastography, ultrasound and clinical findings are important non-invasive tools for cirrhosis and HCC on screening for liver transplant. Higher values in liver elastography and MELD scores predict mortality.


RESUMO Racional: A elastografia hepática tem sido relatada nos carcinomas hepatocelulares (CHC); porém, não é claro identificar o risco de morbimortalidade na lista de transplante hepático. Objetivo: Avaliar a morbimortalidade com elastografia transitória e escore MELD. Método: Pacientes adultos com cirrose na triagem para transplante de fígado foram incluídos no estudo. Resultados: Foram incluídos 103 pacientes (sem CHC n=58 (66%), CHC n=45 (44%). O escore MELD médio foi de 14,7±6,4, a hipertensão portal foi de 83,9% e o valor médio de elastografia transitória foi de 32,73±22,5 kPa. O valor médio de ARFI (Impulsão de Força de Radiação Acústica) do parênquima hepático foi de 1,98 (0,65-3,2) m/s e 2,16 (0,59-2,8) m/s no grupo CHC. O grupo CHC foi significativamente associado à infecção por vírus da hepatite C (OR 26,84, p<0,0001), níveis mais altos de alfa-feto proteína sérica (OR 5,51; p=0,015), hipertensão portal clínica (OR 0,25; p=0,032) e pontuação MELD semelhante (p=0,693). Os valores de AUROCs (Area Under the Receiver Operating Characteristics) mostraram sensibilidade e especificidade para a alfa-feto proteína sérica (limite de 9,1 ng/ml), valor elastografia transitória (valor de corte 9 kPa) e valor ARFI (valor de corte 2,56 m/s) de 50% e 86%, 92% e 17% e 21% e 92%, respectivamente. O grupo de sobrevivência apresentou valor elastografia transitória médio de 31,65±22,2 kPa vs. 50,87±20,9 kPa (p=0,098) e valores mais elevados de MELD (p=0,035). Conclusão: Valores mais elevados na elastografia do fígado e nos escores MELD predizem a mortalidade.


Subject(s)
Humans , Male , Female , Adult , Aged , Carcinoma, Hepatocellular/mortality , Carcinoma, Hepatocellular/diagnostic imaging , Elasticity Imaging Techniques , Liver Cirrhosis/mortality , Liver Cirrhosis/diagnostic imaging , Liver Neoplasms/mortality , Liver Neoplasms/diagnostic imaging , Prognosis , Predictive Value of Tests , Waiting Lists , Liver Transplantation , Carcinoma, Hepatocellular/surgery , Carcinoma, Hepatocellular/complications , Liver Cirrhosis/surgery , Liver Cirrhosis/complications , Liver Neoplasms/surgery , Liver Neoplasms/complications
7.
Gastroenterol. latinoam ; 29(1): 27-32, 2018. tab, ilus
Article in Spanish | LILACS | ID: biblio-1116764

ABSTRACT

Hepatocellular carcinoma (HCC) is the main primary liver malignancy. Its prevalence is increasing and is associated in 90% to cirrhotic patients. Hemoperitoneum secondary to spontaneous rupture of the tumor is an uncommon complication in Latin America and the Western world, being more prevalent in Asian races. However, it is associated to hemodynamic repercussion with high mortality, therefore high level of suspicion and early treatment are required. Regarding the management of the condition, in addition to hemodynamic stabilization, active hemostatic control is recommended over conservative management, transarterial chemoembolization being currently the chosen alternative. We present a series of three clinical cases of patients who debuted with clinical manifestation of hemoperitoneum during the diagnostic process of a HCC.


El carcinoma hepatocelular (CHC) corresponde a la principal neoplasia maligna primaria hepática. Su prevalencia va en aumento y se asocia en 90% a pacientes cirróticos. El hemoperitoneo secundario a rotura espontánea del tumor constituye una complicación infrecuente en Latinoamérica y Occidente, siendo más prevalente en razas asiáticas. Sin embargo, se asocia a repercusión hemodinámica con alta mortalidad, por lo que requiere un alto índice de sospecha y tratamiento oportuno precoz. En cuanto al manejo del cuadro, junto a la estabilización hemodinámica se recomienda un control hemostático activo por sobre manejo conservador, siendo la embolización transarterial la alternativa de elección actualmente. Describimos a continuación una serie de tres casos clínicos de pacientes que debutan con manifestación clínica de hemoperitoneo durante el proceso diagnóstico de un CHC.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Aged, 80 and over , Carcinoma, Hepatocellular/complications , Hemoperitoneum/etiology , Hemoperitoneum/therapy , Liver Neoplasms/complications , Rupture, Spontaneous , Tomography, X-Ray Computed , Treatment Outcome , Carcinoma, Hepatocellular/diagnostic imaging , Embolization, Therapeutic , Liver Neoplasms/diagnostic imaging
8.
Clinics ; 71(5): 281-284, May 2016. tab
Article in English | LILACS | ID: lil-782842

ABSTRACT

OBJECTIVE: The majority of cases of hepatocellular carcinoma have been reported in individuals with cirrhosis due to chronic viral hepatitis and alcoholism, but recently, the prevalence has become increasingly related to nonalcoholic steatohepatitis around the world. The study aimed to evaluate the clinical and histophatological characteristics of hepatocellular carcinoma in Brazilians' patients with nonalcoholic steatohepatitis at the present time. METHODS: Members of the Brazilian Society of Hepatology were invited to complete a survey regarding patients with hepatocellular carcinoma related to nonalcoholic steatohepatitis. Patients with a history of alcohol intake (>20 g/day) and other liver diseases were excluded. Hepatocellular carcinoma diagnosis was performed by liver biopsy or imaging methods according to the American Association for the Study of Liver Diseases’ 2011 guidelines. RESULTS: The survey included 110 patients with a diagnosis of hepatocellular carcinoma and nonalcoholic fatty liver disease from nine hepatology units in six Brazilian states (Bahia, Minas Gerais, Rio de Janeiro, São Paulo, Paraná and Rio Grande do Sul). The mean age was 67±11 years old, and 65.5% were male. Obesity was observed in 52.7% of the cases; diabetes, in 73.6%; dyslipidemia, in 41.0%; arterial hypertension, in 60%; and metabolic syndrome, in 57.2%. Steatohepatitis without fibrosis was observed in 3.8% of cases; steatohepatitis with fibrosis (grades 1-3), in 27%; and cirrhosis, in 61.5%. Histological diagnosis of hepatocellular carcinoma was performed in 47.2% of the patients, with hepatocellular carcinoma without cirrhosis accounting for 7.7%. In total, 58 patients with cirrhosis had their diagnosis by ultrasound confirmed by computed tomography or magnetic resonance imaging. Of these, 55% had 1 nodule; 17%, 2 nodules; and 28%, ≥3 nodules. CONCLUSIONS: Nonalcoholic steatohepatitis is a relevant risk factor associated with hepatocellular carcinoma in patients with and without cirrhosis in Brazil. In this survey, hepatocellular carcinoma was observed in elevated numbers of patients with steatohepatitis without cirrhosis.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Carcinoma, Hepatocellular/epidemiology , Liver Neoplasms/epidemiology , Non-alcoholic Fatty Liver Disease/epidemiology , Brazil/epidemiology , Carcinoma, Hepatocellular/complications , Diabetes Complications/epidemiology , Health Surveys , Hypertension/complications , Liver Cirrhosis/complications , Liver Neoplasms/complications , Non-alcoholic Fatty Liver Disease/complications , Risk Factors
9.
ABCD (São Paulo, Impr.) ; 29(1): 21-25, Jan.-Mar. 2016. tab, graf
Article in English | LILACS | ID: lil-780028

ABSTRACT

Background: Liver transplantation is the usual treatment for hepatocellular carcinoma. Aim : To analyze the MELD score, waiting time and three month and one year survival for liver transplantation in cirrhotic patients affected by hepatocellular carcinoma or not. Methods: This was a retrospective, observational and analytical study of 93 patients submitted to liver transplantation. Results: There were 28 hepatocellular carcinoma and 65 non-hepatocellular carcinoma patients with no differences related to age and sex distribution. The main causes of cirrhosis on hepatocellular carcinoma were hepatitis C virus (57.1%) and hepatitis B virus (28.5%), more frequent than non-hepatocellular carcinoma patients, which presented 27.7% and 4.6% respectively. The physiological and exception MELD score on hepatocellular carcinoma were 11.9 and 22.3 points. On non-hepatocellular carcinoma, it was 19.4 points, higher than the physiological MELD and lower than the exception MELD on hepatocellular carcinoma. The waiting time for transplantation was 96.2 days for neoplasia, shorter than the waiting time for non-neoplasia patients, which was 165.6 days. Three month and one year survival were 85.7% and 78.6% for neoplasia patients, similar to non-neoplasia, which were 77% and 75.4%. Conclusion : Hepatocellular carcinoma patients presented lower physiological MELD score, higher exception MELD score and shorter waiting time for transplantation when compared to non-hepatocellular carcinoma patients. Three month and one year survival were the same between the groups.


Racional : O tratamento habitual do carcinoma hepatocelular é o transplante hepático. Objetivo : Analisar o MELD, o tempo em lista de espera e a sobrevida em três meses e em um ano de pacientes submetidos ao transplante hepático cadavérico e divididos em dois grupos: portadores e não portadores de carcinoma hepatocelular. Método : Estudo analítico, observacional e retrospectivo de 93 pacientes transplantados. Resultados : Os grupos foram similares em relação ao sexo e à idade. Os 28 pacientes com a neoplasia apresentaram maior frequência de vírus da hepatite C (57,1%) e da hepatite B (28,5%) em relação aos 65 não portadores, que foi de 27,7% e 4,6% respectivamente. O MELD fisiológico e corrigido dos portadores de carcinoma hepatocelular foi de 11,9 e 22,3 pontos, enquanto que o dos pacientes sem foi de 19,4 pontos, maior do que o MELD fisiológico e menor do que o MELD corrigido dos portadores. O tempo em lista de espera dos com a neoplasia foi de 96,2 dias, menor do que a dos sem a ela que foi de 165,6 dias. A sobrevida em três meses e em um ano dos pacientes acometidos pela neoplasia foi de 85,7% e 78,6%, igual à sobrevida dos não acometidos que foi de 77% e 75,4%. Conclusão : Os portadores de carcinoma hepatocelular apresentaram menor MELD fisiológico, menor tempo em lista e maior MELD corrigido em relação aos não portadores. A sobrevida em três meses e em um ano foi igual entre os grupos.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Carcinoma, Hepatocellular/surgery , Carcinoma, Hepatocellular/complications , Liver Cirrhosis/complications , Liver Neoplasms/surgery , Liver Neoplasms/complications , Time Factors , Survival Rate , Retrospective Studies , Waiting Lists , Liver Transplantation , Carcinoma, Hepatocellular/mortality , Liver Neoplasms/mortality , Models, Theoretical
10.
São Paulo; s.n; s.n; 2016. 90 p. tab, graf, ilus.
Thesis in Portuguese | LILACS | ID: biblio-846628

ABSTRACT

A combinação de agentes quimiopreventivos com diferentes mecanismos de ação tem sido considerada uma estratégia promissora para a prevenção do câncer. Dentre os diversos compostos bioativos em alimentos, destacam-se a tributirina, um pró-fármaco do ácido butírico presente em laticínios e produzido pela fermentação de fibras dietéticas, e o óleo de linhaça, fonte de ácido alfa linolênico. Nesse contexto, foi avaliada a atividade quimiopreventiva de lipídios estruturados obtidos a partir da interesterificação enzimática de tributirina e óleo de linhaça durante a fase de promoção inicial da hepatocarcinogênese experimental. Ratos Wistar machos submetidos ao modelo do hepatócito resistente receberam diariamente, por via intragástrica (i.g), maltodextrina, óleo de linhaça, tributirina, a mistura não esterificada ou lipídios estruturados durante a fase de promoção inicial. O tratamento com lipídios estruturados demonstrou atividade quimiopreventiva comparável à da tributirina, mesmo resultando em menor concentração hepática de ácido butírico. Tanto a tributirina quanto os lipídios estruturados não inibiram a proliferação celular em lesões preneoplásicas, mas induziram a apoptose naquelas em remodelação. Os efeitos inibitórios da tributirina em fases iniciais da hepatocarcinogênese experimental estão relacionados ao aumento da acetilação de histonas e à modulação de processos de translocação nuclear da p53. No presente estudo, foi observado aumento substancial da razão nuclear/citoplasmática de p53 e importina-alfa em fígados de animais submetidos ao modelo e tratados com tributirina, mas não nos tratados com lipídios estruturados. Por outro lado, o tratamento com lipídios estruturados reduziu a expressão dos oncogenes Bcl2, Ccnd2, Pdgfa, Vegfa e aumentou a expressão dos genes supressores de tumor Cdh13, Fhit e Socs3. Assim, embora o potencial quimiopreventivo dos lipídios estruturados seja comparável ao da tributirina, os resultados sugerem que o novo composto não exibe atividade de HDACi, e que seus efeitos inibitórios na hepatocarcinogênese possam ser atribuídos à modulação da expressão de oncogenes e genes supressores de tumor


Combination of chemopreventive agents with different mechanisms of action has been considered a promising strategy to cancer prevention. Among several bioactive food compounds, tributyrin, a butyric acid prodrug obtained from dairy products and dietetic fiber fermentation, and flax seed oil, a rich source of alpha linolenic acid have shown chemopreventive potential. Here, we evaluated the chemopreventive activity of structured lipids obtained by enzymatic interesterification of tributyrin and flax seed oil during the early promotion phase of experimental hepatocarcinogenesis. Male Wistar rats subjected to the resistant hepatocyte model were treated daily, i.g, with maltodextrin, flax seed oil, tributyrin, non-sterified blend, or structured lipids. Treatment structured lipids showed similar chemopreventive activity compared to tributyrin, even when structured lipids yielded lower concentrations of butyric in the liver. Tributyrin and structured lipids did not inhibit cell proliferation in preneoplastic lesions, but both of them induced apoptosis in remodeling preneoplastic lesions. In addition, histone acetylation and p21 restored expression tributyrin molecular mechanisms were related to modulation of p53 nuclear shuttling mechanisms. In the present study, it was observed a substantial increase in p53 nuclear/cytoplasmic ratio and importin-alpha in preneoplastic livers of tributyrin treated rats, but not in those treated with structured lipids. In contrast, treatment structured lipids downregulated expression of major oncogenes Bcl2, Ccnd2, Pdgfa, and Vegfa; and upregulated expression of critical tumor suppressor genes, Cdh13, Socs3 and Fhit. Hence, although structured lipids and tributyrin show similar chemopreventive potential, the results suggest that the new compound does not exhibit HDACi activity, and that its inhibitory effects may be attributed to the modulation of oncogenes and tumor suppressor genes expression


Subject(s)
Animals , Male , Rats , Rats/abnormalities , Linseed Oil/adverse effects , Carcinoma, Hepatocellular/complications , Chemoprevention/adverse effects , Lipase/adverse effects , Lipids/analysis , Gene Expression/genetics , Apoptosis/genetics , Carcinoma, Hepatocellular/prevention & control , Chemoprevention/methods , Epigenesis, Genetic/genetics , Functional Food/analysis
11.
Washington D.C; s.n; 2016. 88 p. ilus, mapas.
Non-conventional in Spanish | LILACS | ID: biblio-906671

ABSTRACT

El presente informe ofrece un panorama de las epidemias actuales de hepatitis B y hepatitis C, así como de la respuesta del sector de la salud en la Región de las Américas. Su finalidad es proporcionar, en el marco de un entorno en constante cambio, un conocimiento básico de los temas principales relacionados con la respuesta a estas epidemias en la Región, para lo cual presenta un panorama de los grupos de población afectados y de la carga de las infecciones por el virus de la hepatitis B (VHB) y el virus de la hepatitis C (VHC) en la Región, además de las actuales políticas y de las prácticas del sector de la salud. Este informe, el primero en su tipo que aborda el seguimiento de los progresos en la consecución de las metas establecidas en el Plan de acción para la prevención y el control de las hepatitis virales,tiene por objeto ayudar a los Estados Miembros a adaptar sus políticas y prioridades para que puedan establecer una respuesta de salud pública eficaz e integral. Se ha producido un cambio importante en la conciencia mundial sobre las epidemias de hepatitis virales: ya no se consideran silenciosas y actualmente se observa una evolución hacia la adopción de medidas a escala mundial para eliminarlas como problema de salud pública. En la Región de las Américas, la principal carga de las hepatitis virales se debe a las hepatitis B y C; unos 2,8 millones de personas (2,2 a 8,0 millones)1presentan la infección crónica por el virus de la hepatitis B (VHB), de las cuales 2,1 millones viven...


Subject(s)
Humans , Hepatitis C/epidemiology , Immunization Programs/standards , Hepatitis B, Chronic/epidemiology , Hepatitis, Viral, Human/complications , Viral Hepatitis Vaccines/standards , Hepatitis C/prevention & control , Carcinoma, Hepatocellular/complications , Hepatitis B, Chronic/prevention & control , Health Policy , Liver Cirrhosis/complications
12.
Clinical and Molecular Hepatology ; : 487-494, 2016.
Article in English | WPRIM | ID: wpr-54509

ABSTRACT

BACKGROUND/AIMS: Practice guidelines recommend endoscopic band ligation (EBL) and endoscopic variceal obturation (EVO) for bleeding from esophageal varices and fundal varices, respectively. However, the optimal treatment for bleeding from cardiac varices along the lesser curvature of the stomach (GOV1) remains undefined. This retrospective study compared the efficacy between EBL and EVO for bleeding from GOV1. METHODS: Patients treated by EBL or EVO via cyanoacrylate injection for bleeding from GOV1 were enrolled. Patients diagnosed with hepatocellular carcinoma or treated with endoscopic injection sclerotherapy were excluded. RESULTS: The study included 91 patients treated for bleeding from GOV1. The mean age was 56.3±10.9 years (mean±SD), and 78 of them (85.7%) were men. Overall, 51 and 40 patients were treated with EBL and EVO, respectively. A trend for a higher hemostasis rate was noted in the EVO group (100%) than in the EBL group (82.6%, P=0.078). Varices rebled in 15 patients during follow-up. The rebleeding rate was significantly higher in the EBL group than in the EVO group (P=0.004). During follow-up, 13 patients died (11 in the EBL group and 2 in the EVO group); the survival rate was marginally significant between two groups (P=0.050). The rebleeding-free survival rate was significantly higher in the EVO group than in the EBL group (P=0.001). CONCLUSIONS: Compared to EBL, EVO offered significantly lower rebleeding rates, significantly higher rebleeding-free survival rates, and a trend for higher hemostasis and survival rates. EVO appears to be the better therapeutic option for bleeding from GOV1.


Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Carcinoma, Hepatocellular/complications , Cyanoacrylates/therapeutic use , Disease-Free Survival , Endoscopy, Gastrointestinal , Gastrointestinal Hemorrhage/etiology , Ligation , Liver Cirrhosis/complications , Liver Neoplasms/complications , Proportional Hazards Models , Recurrence , Retrospective Studies , Sclerotherapy , Survival Rate , Treatment Outcome
13.
Clinical and Molecular Hepatology ; : 160-167, 2016.
Article in English | WPRIM | ID: wpr-46328

ABSTRACT

BACKGROUND/AIMS: Treating hepatocellular carcinoma (HCC) with portal vein tumor thrombosis (PVTT) remains controversial. We compared the outcomes of hepatic resection (HR), transarterial chemoembolization (TACE), and sorafenib therapy as treatments for HCC with PVTT. METHODS: Patients diagnosed as HCC with PVTT between January 2000 and December 2011 who received treatment with sorafenib, HR, or TACE were included. Patients with main PVTT, superior mesenteric vein tumor thrombosis, or Child-Turcotte-Pugh (CTP) class C were excluded. The records of 172 patients were analyzed retrospectively. HR, TACE, and sorafenib treatment were performed is 40, 80, and 52 patients respectively. PVTT was classified as either involving the segmental branch (type I) or extending to involve the right or left portal vein (type II). RESULTS: The median survival time was significantly longer in the HR group (19.9 months) than in the TACE and sorafenib groups (6.6 and 6.2 months, respectively; both p<0.001), and did not differ significantly between the latter two groups (p=0.698). Among patients with CTP class A, type I PVTT or unilobar-involved HCC, the median survival time was longer in the HR group than in the TACE and sorafenib groups (p=0.006). In univariate analyses, the initial treatment method, tumor size, PVTT type, involved lobe, CTP class, and presence of cirrhosis or ascites were correlated with overall survival. The significant prognostic factors for overall survival in Cox proportional-hazards regression analysis were initial treatment method (HR vs. TACE: hazard ratio=1.750, p=0.036; HR vs. sorafenib: hazard ratio=2.262, p=0.006), involved lobe (hazard ratio=1.705, p=0.008), PVTT type (hazard ratio=1.617, p=0.013), and CTP class (hazard ratio=1.712, p=0.012). CONCLUSIONS: Compared with TACE or sorafenib, HR may prolong the survival of patients with HCC in cases of CTP class A, type I PVTT or unilobar-involved HCC.


Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Antineoplastic Agents/therapeutic use , Carcinoma, Hepatocellular/complications , Chemoembolization, Therapeutic , Combined Modality Therapy , Follow-Up Studies , Liver Neoplasms/complications , Niacinamide/analogs & derivatives , Phenylurea Compounds/therapeutic use , Portal Vein , Proportional Hazards Models , Retrospective Studies , Severity of Illness Index , Survival Rate , Treatment Outcome , Venous Thrombosis/complications
14.
Yonsei Medical Journal ; : 1276-1281, 2016.
Article in English | WPRIM | ID: wpr-79763

ABSTRACT

Locally advanced hepatocellular carcinoma (HCC) with portal vein thrombosis carries a 1-year survival rate <10%. Localized concurrent chemoradiotherapy (CCRT), followed by hepatic arterial infusion chemotherapy (HAIC), was recently introduced in this setting. Here, we report our early experience with living donor liver transplantation (LDLT) in such patients after successful down-staging of HCC through CCRT and HAIC. Between December 2011 and September 2012, eight patients with locally advanced HCC at initial diagnosis were given CCRT, followed by HAIC, and underwent LDLT at the Severance Hospital, Seoul, Korea. CCRT [45 Gy over 5 weeks with 5-fluorouracil (5-FU) as HAIC] was followed by HAIC (5-FU/cisplatin combination every 4 weeks for 3-12 months), adjusted for tumor response. Down-staging succeeded in all eight patients, leaving no viable tumor thrombi in major vessels, although three patients first underwent hepatic resections. Due to deteriorating liver function, transplantation was the sole therapeutic option and offered a chance for cure. The 1-year disease-free survival rate was 87.5%. There were three instances of post-transplantation tumor recurrence during follow-up monitoring (median, 17 months; range, 10-22 months), but no deaths occurred. Median survival time from initial diagnosis was 33 months. Four postoperative complications recorded in three patients (anastomotic strictures: portal vein, 2; bile duct, 2) were resolved through radiologic interventions. Using an intensive tumor down-staging protocol of CCRT followed by HAIC, LDLT may be a therapeutic option for selected patients with locally advanced HCC and portal vein tumor thrombosis.


Subject(s)
Adult , Female , Humans , Male , Middle Aged , Carcinoma, Hepatocellular/complications , Chemoradiotherapy , Cisplatin/therapeutic use , Disease-Free Survival , Fluorouracil/therapeutic use , Liver Neoplasms/complications , Liver Transplantation , Living Donors , Neoplasm Recurrence, Local , Portal Vein , Venous Thrombosis/complications
15.
Clinical and Molecular Hepatology ; : 212-218, 2016.
Article in English | WPRIM | ID: wpr-138555

ABSTRACT

Laparoscopic liver resection (LLR) is becoming widely accepted for the treatment of hepatocellular carcinoma (HCC). Laparoscopic left lateral sectionectomy and minor laparoscopic liver resection are now considered standard approaches, especially for tumors located in the anterolateral segments of the liver. Laparoscopic left lateral sectionectomy in adult donors is also gaining acceptance for child liver transplantation in many centers. Major LLRs, including left hepatectomy and right hepatectomy, have been recently attempted. Laparoscopic donor hepatectomy is becoming more popular owing to increasing demand from young living donors who appreciate its minimal invasiveness and excellent cosmetic outcomes. Several centers have performed total laparoscopic donor right hepatectomy in adult-to-adult living donor liver transplantation. Many meta-analyses have shown that LLR is better than open liver resection in terms of short-term outcomes, principally cosmetic outcomes. Although no randomized control trials have compared LLR with open liver resection, the long-term oncologic outcomes were similar for both procedures in recent case-matched studies.


Subject(s)
Humans , Carcinoma, Hepatocellular/complications , Laparoscopy , Liver Cirrhosis/complications , Liver Neoplasms/pathology , Neoplasm Recurrence, Local , Prognosis
16.
Clinical and Molecular Hepatology ; : 212-218, 2016.
Article in English | WPRIM | ID: wpr-138554

ABSTRACT

Laparoscopic liver resection (LLR) is becoming widely accepted for the treatment of hepatocellular carcinoma (HCC). Laparoscopic left lateral sectionectomy and minor laparoscopic liver resection are now considered standard approaches, especially for tumors located in the anterolateral segments of the liver. Laparoscopic left lateral sectionectomy in adult donors is also gaining acceptance for child liver transplantation in many centers. Major LLRs, including left hepatectomy and right hepatectomy, have been recently attempted. Laparoscopic donor hepatectomy is becoming more popular owing to increasing demand from young living donors who appreciate its minimal invasiveness and excellent cosmetic outcomes. Several centers have performed total laparoscopic donor right hepatectomy in adult-to-adult living donor liver transplantation. Many meta-analyses have shown that LLR is better than open liver resection in terms of short-term outcomes, principally cosmetic outcomes. Although no randomized control trials have compared LLR with open liver resection, the long-term oncologic outcomes were similar for both procedures in recent case-matched studies.


Subject(s)
Humans , Carcinoma, Hepatocellular/complications , Laparoscopy , Liver Cirrhosis/complications , Liver Neoplasms/pathology , Neoplasm Recurrence, Local , Prognosis
17.
Clinical and Molecular Hepatology ; : 279-286, 2015.
Article in English | WPRIM | ID: wpr-157200

ABSTRACT

BACKGROUND/AIMS: The goal of this study was to estimate the growth rate of hepatocellular carcinoma (HCC) and identify the host factors that significantly affect this rate. METHODS: Patients with early-stage HCC (n=175) who underwent two or more serial dynamic imaging studies without any anticancer treatment at two tertiary care hospitals in Korea were identified. For each patient, the tumor volume doubling time (TVDT) of HCC was calculated by comparing tumor volumes between serial imaging studies. Clinical and laboratory data were obtained from the medical records of the patients. RESULTS: The median TVDT was 85.7 days, with a range of 11 to 851.2 days. Multiple linear regression revealed that the initial tumor diameter (a tumor factor) and the etiology of chronic liver disease (a host factor) were significantly associated with the TVDT. The TVDT was shorter when the initial tumor diameter was smaller, and was shorter in HCC related to hepatitis B virus (HBV) infection than in HCC related to hepatitis C virus (HCV) infection (median, 76.8 days vs. 137.2 days; P=0.0234). CONCLUSIONS: The etiology of chronic liver disease is a host factor that may significantly affect the growth rate of early-stage HCC, since HBV-associated HCC grows faster than HCV-associated HCC.


Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Antiviral Agents/therapeutic use , Carcinoma, Hepatocellular/complications , Demography , Hepatitis B, Chronic/complications , Hepatitis C, Chronic/complications , Linear Models , Liver Neoplasms/complications , Magnetic Resonance Imaging , Neoplasm Staging , Republic of Korea , Retrospective Studies , Tertiary Care Centers , Tomography, X-Ray Computed
20.
Clinical and Molecular Hepatology ; : 115-121, 2015.
Article in English | WPRIM | ID: wpr-128622

ABSTRACT

Despite advances in the treatment of hepatocellular carcinoma (HCC), managing HCC with portal vein thrombosis (PVT) remains challenging. PVT is present in 10-40% of HCC cases at the time of diagnosis and its therapeutic options are very limited. Current guidelines mainly recommend sorafenib for advanced HCC with PVT, but surgery, transarterial chemoemolization, external radiation therapy, radioembolization, transarterial infusion chemotherapy, and combination therapy are also still used. Furthermore, several new emerging therapies such as the administration of immunotherapeutic agents and oncolytic viruses are under investigation. This comprehensive literature review presents current and future management options with their relative advantages and disadvantages and summary data on overall survival.


Subject(s)
Humans , Carcinoma, Hepatocellular/complications , Chemoembolization, Therapeutic , Combined Modality Therapy , Liver Neoplasms/complications , Niacinamide/administration & dosage , Phenylurea Compounds/administration & dosage , Portal Vein , Protein Kinase Inhibitors/administration & dosage , Venous Thrombosis/complications
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