Effects of Solanum lycopersicum L. (tomato) against isoniazid and rifampicin induced hepatotoxicity in wistar albino rats / Efeitos de Solanum lycopersicum L. (tomate) contra hepatotoxicidade induzida por isoniazida e rifampicina em ratos albinos wistar

Anti-tuberculosis drugs are reported to cause hepatotoxicity, which varies from asymptomatic rise of the hepatic enzymes. Hepatoprotective plants plays important role to protect liver. This study investigated the hepatoprotective potential of the Solanum lycopersicum in rats intoxicated with Isoniazid and Rifampicin (INH+RIF) to induce hepatotoxicity. Thirty wistar albino rats were divided into five groups of six animals each. Group 1 rats were kept control while groups II, III, IV and V were administered with INH+RIF (75+150 mg/kg) orally, for seven consecutive days. For treatment, rats in group III received silymarin while animals in group IV and V were provided with 40 mg/kg and 80 mg/kg of Solanum lycopersicum extract, respectively. On day 0 and 8th blood samples were collected for the analysis of hepatic biomarkers. The data were subjected to one-way ANOVA and Bonferroni's post hoc test for statistical analysis. Hepatotoxicity induced by INH+RIF resulted in significant elevation of serum hepatic enzymes including Aspartate aminotransferase (AST), Alanine aminotransferase (ALT), Alkaline phosphatase (ALP), and total bilirubin while decreased the albumin level. The Solanum lycopersicum at dose of 80 mg/kg significantly reduced the hepatic enzymes AST, ALT, ALP and bilirubin while the albumin level was significantly increased. The treatment had non-significant effect on body and liver weight. Drug induced hepatotoxicity can be effectively treated with Solanum lycopersicum at 80 mg/kg dose.

As drogas antituberculose são relatadas como causadoras de hepatotoxicidade, ocasionando o aumento assintomático das enzimas hepáticas. As plantas hepatoprotetoras desempenham um papel importante na proteção do fígado. Este estudo investigou o potencial hepatoprotetor de Solanum lycopersicum em ratos que foram intoxicados com isoniazida e rifampicina (INH + RIF) para induzir hepatotoxicidade. Trinta ratos wistar albinos foram divididos em cinco grupos de seis animais cada. Os ratos do grupo 1 representaram o grupo controle, enquanto os ratos dos grupos II, III, IV e V receberam INH + RIF (75 + 150 mg/kg) por via oral, por sete dias consecutivos. Para o tratamento, os ratos do grupo III receberam silimarina, enquanto os animais do grupo IV e V receberam 40 mg/kg e 80 mg/kg de extrato de S. lycopersicum, respectivamente. Nos dias 0 e 8, foram coletadas amostras de sangue para análise de biomarcadores hepáticos. Os dados foram submetidos a teste unilateral (ANOVA) e post hoc de Bonferroni para análise estatística. A hepatotoxicidade induzida por INH + RIF resultou em elevação significativa das enzimas hepáticas séricas, incluindo aspartato aminotransferase (AST), alanina aminotransferase (ALT), fosfatase alcalina (ALP) e bilirrubina total, enquanto houve a diminuição do nível de albumina. O S. lycopersicum, na dose de 80 mg / kg, reduziu significativamente as enzimas hepáticas AST, ALT, ALP e bilirrubina, enquanto o nível de albumina aumentou de forma significativa. O tratamento não teve efeito significativo no peso corporal e hepático. A hepatotoxicidade induzida por drogas pode ser tratada de forma eficaz com S. lycopersicum na dose de 80 mg/kg.

Effects of Solanum lycopersicum L. (tomato) against isoniazid and rifampicin induced hepatotoxicity in wistar albino rats

Abstract Anti-tuberculosis drugs are reported to cause hepatotoxicity, which varies from asymptomatic rise of the hepatic enzymes. Hepatoprotective plants plays important role to protect liver. This study investigated the hepatoprotective potential of the Solanum lycopersicum in rats intoxicated with Isoniazid and Rifampicin (INH+RIF) to induce hepatotoxicity. Thirty wistar albino rats were divided into five groups of six animals each. Group 1 rats were kept control while groups II, III, IV and V were administered with INH+RIF (75+150 mg/kg) orally, for seven consecutive days. For treatment, rats in group III received silymarin while animals in group IV and V were provided with 40 mg/kg and 80 mg/kg of Solanum lycopersicum extract, respectively. On day 0 and 8th blood samples were collected for the analysis of hepatic biomarkers. The data were subjected to one-way ANOVA and Bonferronis post hoc test for statistical analysis. Hepatotoxicity induced by INH+RIF resulted in significant elevation of serum hepatic enzymes including Aspartate aminotransferase (AST), Alanine aminotransferase (ALT), Alkaline phosphatase (ALP), and total bilirubin while decreased the albumin level. The Solanum lycopersicum at dose of 80 mg/kg significantly reduced the hepatic enzymes AST, ALT, ALP and bilirubin while the albumin level was significantly increased. The treatment had non-significant effect on body and liver weight. Drug induced hepatotoxicity can be effectively treated with Solanum lycopersicum at 80 mg/kg dose.

Resumo As drogas antituberculose são relatadas como causadoras de hepatotoxicidade, ocasionando o aumento assintomático das enzimas hepáticas. As plantas hepatoprotetoras desempenham um papel importante na proteção do fígado. Este estudo investigou o potencial hepatoprotetor de Solanum lycopersicum em ratos que foram intoxicados com isoniazida e rifampicina (INH + RIF) para induzir hepatotoxicidade. Trinta ratos wistar albinos foram divididos em cinco grupos de seis animais cada. Os ratos do grupo 1 representaram o grupo controle, enquanto os ratos dos grupos II, III, IV e V receberam INH + RIF (75 + 150 mg/kg) por via oral, por sete dias consecutivos. Para o tratamento, os ratos do grupo III receberam silimarina, enquanto os animais do grupo IV e V receberam 40 mg/kg e 80 mg/kg de extrato de S. lycopersicum, respectivamente. Nos dias 0 e 8, foram coletadas amostras de sangue para análise de biomarcadores hepáticos. Os dados foram submetidos a teste unilateral (ANOVA) e post hoc de Bonferroni para análise estatística. A hepatotoxicidade induzida por INH + RIF resultou em elevação significativa das enzimas hepáticas séricas, incluindo aspartato aminotransferase (AST), alanina aminotransferase (ALT), fosfatase alcalina (ALP) e bilirrubina total, enquanto houve a diminuição do nível de albumina. O S. lycopersicum, na dose de 80 mg / kg, reduziu significativamente as enzimas hepáticas AST, ALT, ALP e bilirrubina, enquanto o nível de albumina aumentou de forma significativa. O tratamento não teve efeito significativo no peso corporal e hepático. A hepatotoxicidade induzida por drogas pode ser tratada de forma eficaz com S. lycopersicum na dose de 80 mg/kg.

Clinical outcome of primary non‑metastatic breast cancer: A single institution experience.

BACKGROUND: We report on prognostic factors and long‑term survival of non‑metastatic breast cancer patients treated at Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH and RC) in Pakistan. MATERIALS AND METHODS: This retrospective cohort study is based on a review of 2829 pathologically confirmed non‑metastatic breast cancer patients managed from January 1995 to May 2009. Median age was 45 years. Stage at presentation: Stage I (9%), stage II (59%), and stage III (32%). Infiltrating ductal carcinoma (92%) constituted the most prevalent histological subtype. Estrogen (ER), progesterone (PR) and Her2‑neu were positive in 49%, 50%, and 26%, respectively. A mastectomy was performed in 67% and conservative surgery in 33% of the patients. Post‑operative radiotherapy was delivered in 85% of the cases. Ninety percent of the patients received chemotherapy and mainly consisted of anthracycline‑based regimens + taxanes. Hormonal manipulation was done in ER/ PR positive patients. RESULTS: The 5‑ and 10‑year overall survival (OS) was 70% (95% confidence interval [CI]: 68.2‑71.8%) and 54% (95%CI: 51.2‑56.8%), while disease free survival (DFS) was 65% (95% CI: 63‑67%) and 52% (95% CI: 49.2‑54.8%), respectively. Recurrence following primary treatment was seen in 35% of the patients. On multivariate analysis T stage, number of axillary nodal involvement, tumor grade, ER status and family history, were found to be independent predictors for OS and DFS. CONCLUSIONS: Over 90% of non‑metastatic breast cancer patients present with stagesII and III disease and a significant proportion develop distant metastasis accounting for overall long‑term outcome inferior to developed countries. Efforts should be directed to raise the level of health awareness and screening programs to improve early detection in Pakistan.

An assessment of Pakistani pharmacy and medical students’ knowledge of black box warnings / Una evaluación del conocimiento de estudiantes de medicina y de farmacia en Pakistán sobre alertas de medicamentos / Uma avaliação sobre o acesso de estudantes paquistaneses de medicina e farmácia ao conhecimento das advertências das caixas de tarja preta

Food and Drug Administration delivers the black box warnings (BBW) which should appear on the leaflets of medicines for patient awareness and the prescription of drugs indicating its highly fatal adverse effects to human body. The aim of this study was to assess the knowledge of Pakistani pharmacy and medical students about BBW. A questionnaire containing contents about BBW was given to the 1st, 2nd and 3rd professional year pharmacy and medical students from different pharmacy and medical institutes. A 76 percent survey response rate was observed. It was observed that student’s knowledge about BBW improves in association with the promotion in professional years of pharmacy and medical education. The results indicate that student’s knowledge about black box increases with the study level. Training in black box warnings should be implemented in pharmacy and medical institutions influencing the meaningful ways to educate and train pharmacy and medical students, and help these students to get recent knowledge about black box warnings so that, in future, they may perform an ethical practice in their respective fields.

La Agencia Reguladora de Alimentos y Medicamentos comunica alertas sobre medicamentos (AM), que debieran aparecer en los prospectos de medicinas, para el conocimiento de los pacientes y la prescripción de medicamentos, indicando sus efectos adversos fatales para el cuerpo humano. El objetivo de este estudio es averiguar el conocimiento de estudiantes de medicina y de farmacia sobre AM. Se entregó un cuestionario con contenidos sobre AM a estudiantes de farmacia y de medicina de primero a tercer año de diferentes institutos médicos y farmacéuticos. Se obtuvo un 76 por ciento de respuesta. Se observó que el conocimiento de los estudiantes sobre AM mejora asociado a la promoción en años profesionales de medicina y farmacia. Los resultados indican que el conocimiento de los estudiantes sobre alerta de medicamentos aumenta con el nivel de estudio. Debería implementarse la formación sobre alerta de medicamentos en farmacia y medicina y ayudar a los estudiantes a tener conocimiento actual sobre alerta de medicamentos de forma que, en el futuro, puedan realizar prácticas éticas en sus campos respectivos.

A Food and Drug Administration disponibiliza as advertências das caixas de tarja preta (BBW) que devem aparecer em bulas de medicamentos para conscientização de pacientes e a prescrição de drogas, indicando seus efeitos adversos altamente fatais para o corpo humano. O propósito deste estudo foi o de de inteirar a cerca do conhecimento de estudantes de medicina e farmácia sobre BBW. Um questionário com conteúdos sobre BBW foi dado a estudantes de farmácia e medicina, do 1º, 2º e 3º ano de diferentes instituições de ensino em farmácia e medicina. Foi observada uma taxa de 76 por cento de resposta dos pesquisados. Observou-se que o conhecimento de estudantes sobre BBW melhora quando se associa à promoção para anos seguintes da educação nas faculdades de farmácia e medicina. Os resultados indicam que o conhecimento dos estudantes sobre as caixas de tarja preta aumenta com o nível de estudo. Treinamento com caixas de tarja preta pode ser implementado em instituições de ensino de farmácia e medicina, influenciando de modo significativo as formas de educação e treinamento de estudantes de farmácia e medicina, e,assim, ajudar estes estudantes a obter conhecimentos recentes sobre medicamentos de tarja preta de modo que, no futuro, elas possam exercer uma prática ética em seus respectivos campos de atuação profissional.