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1.
Environ Res ; 238(Pt 2): 116896, 2023 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-37586453

RESUMO

Cancer therapy-induced heart injury is a significant concern for cancer patients undergoing chemotherapy, radiotherapy, immunotherapy, and also targeted molecular therapy. The use of these treatments can lead to oxidative stress and cardiomyocyte damage in the heart, which can result in heart failure and other cardiac complications. Experimental studies have revealed that chemotherapy drugs such as doxorubicin and cyclophosphamide can cause severe side effects such as cardiac fibrosis, electrophysiological remodeling, chronic oxidative stress and inflammation, etc., which may increase risk of cardiac disorders and attacks for patients that underwent chemotherapy. Similar consequences may also be observed for patients that undergo radiotherapy for left breast or lung malignancies. Polyphenols, a group of natural compounds with antioxidant and anti-inflammatory properties, have shown the potential in protecting against cancer therapy-induced heart injury. These compounds have been found to reduce oxidative stress, necrosis and apoptosis in the heart, thereby preserving cardiac function. In recent years, nanoparticles loaded with polyphenols have also provided for the delivery of these compounds and increasing their efficacy in different organs. These nanoparticles can improve the bioavailability and efficacy of polyphenols while minimizing their toxicity. This review article summarizes the current understanding of the protective effects of polyphenols and nanoparticles loaded with polyphenols against cancer therapy-induced heart injury. The article discusses the mechanisms by which polyphenols protect the heart, including antioxidant and anti-inflammation abilities. The article also highlights the potential benefits of using nanoparticles for the delivery of polyphenols.


Assuntos
Doenças Cardiovasculares , Traumatismos Cardíacos , Nanopartículas , Neoplasias , Humanos , Polifenóis , Antioxidantes/farmacologia , Anti-Inflamatórios , Traumatismos Cardíacos/tratamento farmacológico
2.
Dig Dis Sci ; 68(4): 1339-1350, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36002675

RESUMO

AIM: Pancreatic fibrosis is the main pathological characteristic of chronic pancreatitis (CP) and pancreatic cancer. Pancreatic stellate cells (PSCs) play a critical role in pancreatic fibrosis. Any targets that may have an impact on the activation of PSCs could become potential treatment candidates for CP and pancreatic cancer. Our goal was to investigate the effect of P-element-induced wimpy-testis (PIWI) protein 1 (PIWIL1) on PSC activation. METHODS: Lentivirus-based RNA interference (RNAi) and overexpression vector construction were used to knock down and over-express the PIWIL1 protein. Immunocytofluorescent staining, western blotting, wound healing assay, transwell assay, and phalloidin staining were used to investigate the effects of PIWIL1 on the secretion of extracellular matrix components (EMC), actin cytoskeleton, and on the invasion and migration abilities of primary PSCs isolated from C57BL/6 mice. Moreover, pancreatic fibrosis was induced by L-arginine in C57BL/6 mice. The expression of PIWIL1 and collagen deposition in vivo were tested by western blotting and Sirius red staining. RESULTS: Expression levels of collagen I, collagen III, and α-smooth muscle actin were significantly decreased in the LV-PIWIL1 group. Compared with the si-PIWIL1 group, significant differences were observed in the expression of desmin, p-PI3K, p-AKT, and p-mTOR in the LV-PIWIL1 group. Furthermore, PIWIL1 suppressed the PSCs' invasion and migration abilities. In a rescue experiment, the PI3K/AKT/mTOR signaling pathway was found to be the underlying mechanism in PSCs activation mediated by PIWIL1. CONCLUSIONS: Our findings suggest that PIWIL1 inhibits the activation of PSCs via the PI3K/AKT/mTOR signaling pathway. PIWIL1 is a potential therapeutic target for pancreatic fibrosis.


Assuntos
Pancreatopatias , Neoplasias Pancreáticas , Pancreatite Crônica , Masculino , Camundongos , Animais , Pâncreas/patologia , Proteínas Proto-Oncogênicas c-akt/metabolismo , Fosfatidilinositol 3-Quinases/metabolismo , Células Estreladas do Pâncreas/patologia , Testículo/metabolismo , Testículo/patologia , Células Cultivadas , Camundongos Endogâmicos C57BL , Transdução de Sinais , Serina-Treonina Quinases TOR/metabolismo , Neoplasias Pancreáticas/patologia , Pancreatite Crônica/induzido quimicamente , Pancreatopatias/patologia , Colágeno/metabolismo , Fibrose , Neoplasias Pancreáticas
3.
Ann Hepatol ; 28(4): 100750, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36007871

RESUMO

INTRODUCTION AND OBJECTIVES: Appropriate nutritional support may improve energy metabolism in alcoholic liver cirrhosis (ALC) patients. We explored the effect of a late evening snack (LES) and oral amino acid (OAA) capsules on energy metabolism and the Fischer ratio in ALC. PATIENTS AND METHODS: Ninety-one ALC patients were enrolled and randomly divided into three groups: 31 patients in the LES and OAA group, 32 in the LES group, and 28 controls. Respiratory quotient (RQ), carbohydrate oxidation rate (CHO%), fat oxidation rate (FAT%), serum isoleucine and the Fischer ratio were measured at baseline and at months 1, 3, and 6 of follow-up. RESULTS: The RQ in the LES and OAA group was 0.79 ± 0.06, 0.80 ± 0.04, 0.82 ± 0.04, and 0.82 ± 0.04 at baseline and at months 1, 3, and 6 of follow-up, respectively. These values were significantly higher than those in the LES group (P < 0.05). The RQ in the LES group was significantly higher than that in the control group at month 1 and month 6 (P < 0.05). CHO% in the LES and OAA group was significantly increased and FAT% was significantly decreased at month 3 of follow-up (P < 0.05). In the LES and OAA group, serum isoleucine and the Fischer ratio were markedly increased compared with the LES group and control group (P < 0.05). CONCLUSIONS: LES can significantly increase the RQ in ALC. LES and OAA were more effective than LES alone in improving serum isoleucine and the Fischer ratio.


Assuntos
Aminoácidos , Cirrose Hepática Alcoólica , Humanos , Cirrose Hepática/metabolismo , Lanches , Cápsulas , Isoleucina
4.
Altern Ther Health Med ; 29(1): 124-129, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35986739

RESUMO

Context: Chronic obstructive pulmonary disease (COPD) is a common, chronic inflammatory disease of the airway, and acute exacerbation of COPD (AE-COPD) refers to the manifestations of inflammation in the lungs that appear within a short period of time. Some patients contract pneumonia, and they can be prone to recurrent attacks of AE-COPD combined with pneumonia. The efficacy of conventional treatments isn't generally satisfactory. Objective: The study intended to investigate the effectiveness and safety of piperacillin tazobactam in combination with the use of high-frequency chest-wall oscillation (HFCWO) to produce expectoration for the treatment of pneumonia in patients with AE-COPD and to provide a reference for clinical treatment. Design: The research team designed a prospective, randomized controlled trial. Setting: The study took place at the Sixth Hospital of Wuhan of the Affiliated Hospital of Jianghan University in Wuhan, China. Participants: Participants were 92 patients who had been admitted to the hospital between January 2020 and November 2021 with AE-COPD combined with pneumonia. Intervention: Using the random number table method, the research team randomly assigned participants to one of two groups, an intervention group or a control group, each with 46 participants. The control group received conventional treatment with oxygen, antibiotics, antispasmodics, antiasthmatic drugs, and phlegmolytic drugs as well as HFCWO for sputum removal. In addition to those treatments, the intervention group received piperacillin tazobactam. Outcome measures: The research team measured the treatment's efficacy at one day postintervention. At baseline and at one day postintervention, the study also measured pulmonary function, laboratory indexes, and blood-gas-analysis indexes. In addition, the research team identified the time of disappearance of clinical symptoms, including the disappearance of cough, sputum, dyspnea, and pulmonary rales; calculated the length of hospital stay, and evaluated the treatment's safety. Results: Postintervention, the intervention group's clinical efficacy was significantly higher than that of the control group (P < .05), and the group's cough, coughing of sputum, dyspnea, disappearance time of pulmonary rales, and hospitalization times were all significantly lower than those in the control group (P < .05). The FEV1, FVC, FEV1% and FEV1/FVC levels were higher in both groups postintervention than at baseline and were significantly higher in the intervention group than in the control group (P < .05). Postintervention, the levels of IL-2, IL-10, TNF-α, CRP and PCT were lower in both groups than at baseline, and the intervention group's levels were significantly lower than those in the control group (P < .05). Postintervention, the PaCO2 level decreased and PaO2 and SaO2 levels increased in both groups compared to baseline; the intervention group's PaCO2 level was lower and PaO2 and SaO2 levels were higher than those in the control group. During the treatment, no adverse reactions occurred in the control group, and one participant had a decreased appetite in the intervention group; the incidence of adverse reactions in that group was 2.17% (1/46). That participant received no special treatment, and the condition improved after stopping the drug. Conclusion: Piperacillin tazobactam combined with HFCWO for sputum evacuation can effectively treat patients with pneumonia in acute exacerbation of COPD, with high safety. The treatment is worthy of clinical application.


Assuntos
Oscilação da Parede Torácica , Pneumonia , Doença Pulmonar Obstrutiva Crônica , Humanos , Combinação Piperacilina e Tazobactam/uso terapêutico , Tosse , Sons Respiratórios , Estudos Prospectivos , Doença Pulmonar Obstrutiva Crônica/tratamento farmacológico , Dispneia/terapia , Oxigênio/uso terapêutico
5.
J Hepatol ; 77(6): 1564-1572, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36038017

RESUMO

BACKGROUND & AIMS: Antiviral therapy improves the clinical outcomes of patients with chronic hepatitis B (CHB), including those with cirrhosis. In the present study, we validated the Baveno VII definition of recompensation and explored the criteria for stable improvement of liver function tests in entecavir-treated patients with CHB-related decompensated cirrhosis. METHODS: In this multicentre prospective study, patients with decompensated (ascites) CHB-related cirrhosis were enrolled and treated with entecavir for 120 weeks. Patients were followed up for clinical events, viral and biochemical tests, and ultrasonography every 6 months. The recompensation rate per Baveno VII criteria was calculated. Multivariate regression models were used to identify the predictors of recompensation. Finally, the criteria for stable improvement of liver function tests were explored. RESULTS: Of the 320 recruited patients, 283 completed the 120-week study, with 261/283 (92.2%) achieving HBV DNA levels <20 IU/ml and 171/283 (60.4%) achieving resolution of ascites, encephalopathy, and absence of recurrent variceal bleeding for at least 12 months. We identified model for end-stage liver disease <10 and/or liver function tests within Child-Pugh Class A (albumin >35 g/L, international normalised ratio <1.50 and total bilirubin <34 µmol/L) as the criteria for stable improvement of liver function tests. Accordingly, 56.2% (159/283) of patients fulfilled the Baveno VII definition of recompensation with a stable improvement of liver function tests defined by the current study. CONCLUSIONS: Our study defined the criteria for a stable improvement of liver function tests required by the Baveno VII definition of recompensation in patients with CHB-related decompensated cirrhosis on antiviral therapy. The criteria derived from this multicentre prospective study warrant further validation in patients with cirrhosis of other aetiologies. LAY SUMMARY: Decompensation of cirrhosis marks the point at which the liver is no longer able to function normally (and symptoms become apparent). Recently the idea of recompensation was proposed for individuals who may experience an improvement in liver function if the underlying cause of their liver disease is addressed (e.g. antivirals for viral cirrhosis). Herein, we show that over 50% of patients with hepatitis B-related decompensated cirrhosis treated with antivirals could recompensate and we propose laboratory criteria which could be used to define recompensation.


Assuntos
Doença Hepática Terminal , Varizes Esofágicas e Gástricas , Hepatite B , Humanos , Ascite , Estudos Prospectivos , Hemorragia Gastrointestinal , Índice de Gravidade de Doença , Antivirais/uso terapêutico , Cirrose Hepática/complicações , Cirrose Hepática/diagnóstico , Cirrose Hepática/tratamento farmacológico
6.
J Gastroenterol Hepatol ; 37(3): 471-479, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34894002

RESUMO

BACKGROUND AND AIM: Tenofovir disoproxil fumarate (TDF) is a first-line treatment for chronic hepatitis B virus (HBV) infection for its high potency and a low rate of drug resistance. This study investigated the efficacy and safety of TDF in Chinese patients with chronic hepatitis B (CHB) infection after treatment failure with multiple nucleos(t)ide analogues (NAs). METHODS: Patients included were aged 18-65 years, with treatment failure with multiple NAs (serum HBV DNA > 200 IU/mL after more than two different NA treatments). The primary endpoint was proportion of patients with serum HBV DNA < 20 IU/mL at Week 144 of TDF monotherapy. Secondary endpoints and safety were also assessed. RESULTS: Overall, 213 patients were enrolled. At Week 144, mean HBV DNA decreased significantly from baseline (4.4 vs 1.4 log10 IU/mL), with 77.0% patients (95% confidence interval: 71.1, 82.9) achieving serum HBV DNA < 20 IU/mL. Three (1.4%) patients experienced virological breakthrough during TDF monotherapy, without hepatitis flare. At Week 144, 15.3% and 4.7% patients (hepatitis B e antigen [HBeAg]-positive at baseline) experienced HBeAg loss and HBeAg seroconversion, respectively; 68.3% patients achieved normalized alanine aminotransferase levels. Overall, 58.7% patients experienced more than one adverse event (AE). Most common AEs were upper respiratory tract infection and blood creatine phosphokinase increase; 8.5% patients experienced study drug-related AEs; 9.4% patients experienced serious AEs (none were TDF-related). Among renal safety parameters, overall trend of mean serum phosphorous level remained stable, while mean estimated glomerular filtration rate increased slightly. CONCLUSIONS: Tenofovir disoproxil fumarate monotherapy is efficacious in CHB patients with multiple NAs treatment failure with no new safety findings.


Assuntos
Hepatite B Crônica , Tenofovir , Adolescente , Adulto , Idoso , Antivirais/uso terapêutico , DNA Viral/sangue , Vírus da Hepatite B/genética , Hepatite B Crônica/tratamento farmacológico , Humanos , Pessoa de Meia-Idade , Tenofovir/efeitos adversos , Tenofovir/uso terapêutico , Falha de Tratamento , Resultado do Tratamento , Adulto Jovem
7.
Zhongguo Zhong Yao Za Zhi ; 46(19): 4891-4897, 2021 Oct.
Artigo em Zh | MEDLINE | ID: mdl-34738382

RESUMO

With the advantages of extensive sources, easy collection, renewability, high yield, carbon circulation, low pollution, and so on, Chinese medicinal solid waste can be converted into clean gas by pyrolysis and gasification, which is then able to serve for industrial production. This is of great practical significance in the context of energy shortage and for solid waste recycling in China. This paper reviews the research progress on biomass gasification principle, gasification medium, and reactor in gasification technology of Chinese medicinal solid waste in recent years. Meanwhile, based on the summary of related research, the defects and improvement measures regarding raw materials, gasification agents, by-products, and reactors were discussed, which provides direction for further development in the gasification technology of Chinese medicinal solid waste in the future.


Assuntos
Pirólise , Resíduos Sólidos , Biomassa , China , Tecnologia
8.
BMC Med ; 18(1): 383, 2020 12 08.
Artigo em Inglês | MEDLINE | ID: mdl-33287816

RESUMO

BACKGROUND: Hepatitis B virus-related acute-on-chronic liver failure (HBV-ACLF) is a severe condition with high mortality due to lack of efficient therapy. Until now, the use of methylprednisolone (MP) in HBV-ACLF is still controversial. We aimed to evaluate the efficacy and safety of MP in HBV-ACLF. METHODS: Totally 171 HBV-ACLF patients from three medical centers were randomly allocated into MP group (83 patients treated with MP intravenously guttae for 7 days plus standard treatment: 1.5 mg/kg/day [day 1-3], 1 mg/kg/day [day 4-5], and 0.5 mg/kg/day [day 6-7]) and control group (88 patients treated with standard treatment). The primary endpoints were 6-month mortality and prognostic factors for 6-month survival. The survival time, cause of death, adverse events, liver function, and HBV DNA replication were analyzed. RESULTS: The 6-month mortality was significantly lower in MP group than control group [32.4% vs. 42.5%, P = 0.0037]. MP treatment was an independent prognostic factor for 6-month survival [HR (95% CI) 0.547(0.308-0.973); P = 0.040]. Factors associated with reduced 6-month mortality in MP group included HBV DNA and lymphocyte/monocyte ratio (LMR) (P < 0.05). Based on ROC curve, LMR+MELD had a better predictive value for prognosis of HBV-ACLF under MP treatment. No significant difference in HBV DNA replication was observed between groups (P > 0.05). CONCLUSIONS: MP therapy is an effective and safe clinical strategy in HBV-ACLF, increasing the 6-month survival rate. Clinical trials registered at http://www.chictr.org.cn as ChiCTR-TRC-13003113 registered on 16 March 2013.


Assuntos
Insuficiência Hepática Crônica Agudizada/tratamento farmacológico , Vírus da Hepatite B/efeitos dos fármacos , Metilprednisolona/uso terapêutico , Insuficiência Hepática Crônica Agudizada/mortalidade , Adulto , Feminino , Humanos , Masculino , Metilprednisolona/farmacologia , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos
9.
BMC Pregnancy Childbirth ; 20(1): 282, 2020 May 11.
Artigo em Inglês | MEDLINE | ID: mdl-32393199

RESUMO

BACKGROUND: Limited data exists regarding the pregnancy and infant outcomes of Acute Fatty Liver of Pregnancy (AFLP). METHODS: Retrospectively collected mothers with AFLP and mothers without AFLP in our center from 1/2008 to 6/2018. The primary assessment was to analyze and compare the frequency of negative maternal and fetal outcomes. The secondary assessment was to investigate the role of intrauterine balloon tamponade in reducing negative maternal outcomes. RESULTS: Compared to 220 matched mothers, 55 AFLP mothers were younger (P < 0.001), with fewer pregnancies (P = 0.033), complicated with more pregnancy induced hypertension (P < 0.001), twins(P = 0.002), fetal growth restriction (P = 0.044) and male fetus (P < 0.001). 3 (5.5%) of AFLP patients were diagnosed in the postpartum period. Mean gestational week of AFLP diagnosis was 35.25 ± 5.80 weeks. Jaundice (89.1%), nausea or vomiting (58.2%), anorexia (49.1%), fatigue (45.5%) and polydipsia (30.9%) were the main prodromal symptoms. The median duration from diagnosis to delivery was 1.55 ± 4.62 days and 75% (39/52) pregnancy were terminated the pregnancy at the day of diagnosis. 78.8% (41/52) patients received cesarean section, 53.6% (22/41) of which received preventive plasma transfusion before surgery and no one received artificial liver support during the treatment. In comparison, higher frequency of 16 maternal complications, severe negative outcomes (27.3% vs. 0.9%) and newborn asphyxia (24.6% vs.0.9%) were observed in AFLP population. 3 mothers (mortality rates: 5.5%) died of multiple organ system failure and 6 fetus/infants (death rates: 9.8%) died of distress. When compared to those without negative outcomes, patients with negative fetal outcomes were younger (P = 0.042), had more singleton rates (p = 0.041), increased mean value of ALT(P = 0.011) and T-Bilirubin (P = 0.014), decreased prothrombin activity (P = 0.011). Although no statistical significance for the small sample size, there were less refractory postpartum hemorrhage (0% vs.31.3%), hysterectomy (0% vs.12.5%), negative maternal outcomes (16.7% vs.56.3%) in patients underwent intrauterine balloon tamponade when postpartum hemorrhage exceeded 500 ml. CONCLUSIONS: Several symptoms were found to be the main prodromal symptoms of AFLP. Higher frequency of adverse maternal and fetal outcomes was observed in mothers with AFLP than mothers without AFLP. We found five potential risk factors of negative fetal outcomes.


Assuntos
Fígado Gorduroso/complicações , Complicações na Gravidez/epidemiologia , Resultado da Gravidez/epidemiologia , Adulto , Transfusão de Componentes Sanguíneos , Estudos de Casos e Controles , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Complicações do Trabalho de Parto/epidemiologia , Plasma , Hemorragia Pós-Parto/epidemiologia , Hemorragia Pós-Parto/terapia , Período Pós-Parto , Gravidez , Estudos Retrospectivos , Tamponamento com Balão Uterino
10.
Sensors (Basel) ; 20(6)2020 Mar 12.
Artigo em Inglês | MEDLINE | ID: mdl-32178296

RESUMO

Automatic detection of arrhythmia is of great significance for early prevention and diagnosis of cardiovascular disease. Traditional feature engineering methods based on expert knowledge lack multidimensional and multi-view information abstraction and data representation ability, so the traditional research on pattern recognition of arrhythmia detection cannot achieve satisfactory results. Recently, with the increase of deep learning technology, automatic feature extraction of ECG data based on deep neural networks has been widely discussed. In order to utilize the complementary strength between different schemes, in this paper, we propose an arrhythmia detection method based on the multi-resolution representation (MRR) of ECG signals. This method utilizes four different up to date deep neural networks as four channel models for ECG vector representations learning. The deep learning based representations, together with hand-crafted features of ECG, forms the MRR, which is the input of the downstream classification strategy. The experimental results of big ECG dataset multi-label classification confirm that the F1 score of the proposed method is 0.9238, which is 1.31%, 0.62%, 1.18% and 0.6% higher than that of each channel model. From the perspective of architecture, this proposed method is highly scalable and can be employed as an example for arrhythmia recognition.


Assuntos
Arritmias Cardíacas/diagnóstico , Eletrocardiografia/métodos , Redes Neurais de Computação , Humanos , Processamento de Sinais Assistido por Computador
11.
J Cell Mol Med ; 23(11): 7810-7818, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31557386

RESUMO

Acute-on-chronic liver failure (ACLF) is a life-threatening syndrome with poor prognosis. Several studies have begun to prove that mitochondria play a crucial role in liver failure. Mitofusin2 (Mfn2) plays a key role in maintaining the integrity of mitochondrial morphology and function. However, the role and underlying mechanisms of Mfn2 on cell autophagy of ACLF remain unclear. Our aim was to explore the effect of Mfn2 on several biological functions involving cell autophagy in ACLF. In this study, we constructed an ACLF animal model and a hepatocyte autophagy model, using adenovirus and lentivirus to deliver Mfn2 to liver cells, in order to assess the effect of Mfn2 on autophagy and apoptosis in ACLF. Furthermore, we explored the biological mechanism of Mfn2-induced autophagy of ACLF using Western blotting, RT-PCR and electron microscopy. We found that Mfn2 significantly attenuated ACLF, characterized by ameliorated gross appearance and microscopic histopathology of liver, and reduced serum AST, ALT, and TBIL levels. Mfn2 improved the expressions of LC3-II, Atg5 and Bcl-2 and down-regulated the expression of P62 and Bax in ACLF. Like rapamycin, Mfn2 also significantly inhibited the expressions of p-PI3K, p-Akt and p-mTOR in ACLF. In conclusion, our findings suggest that Mfn2 influences multiple biological functions of ACLF via the PI3K/Akt/mTOR signalling pathway. This study will provide a reliable theoretical basis for the application of Mfn2 as an effective target for ACLF treatment, reversing or delaying the process of ACLF.


Assuntos
Insuficiência Hepática Crônica Agudizada/metabolismo , Insuficiência Hepática Crônica Agudizada/patologia , GTP Fosfo-Hidrolases/metabolismo , Macroautofagia , Proteínas Mitocondriais/metabolismo , Transdução de Sinais , Serina-Treonina Quinases TOR/metabolismo , Animais , Apoptose , Linhagem Celular , Humanos , Fígado/ultraestrutura , Masculino , Fosfatidilinositol 3-Quinases/metabolismo , Fosforilação , Proteínas Proto-Oncogênicas c-akt/metabolismo , Ratos Sprague-Dawley
12.
Ann Hepatol ; 18(5): 757-764, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31402229

RESUMO

INTRODUCTION AND OBJECTIVES: Hypoxia-inducible factor-1α is critically involved in the pathogenesis of liver diseases. Its inhibitor genistein attenuated D-galactosamine (D-GalN)-induced liver damage. However, the role of genistein in acute-on-chronic liver failure (ACLF) is unclear. The influence of genistein on reactive oxygen species (ROS) and hepatocyte functions were evaluated in a rat model of ACLF. MATERIAL AND METHODS: Genistein [20mg/ (kg. day)]/coenzyme Q10 [10mg/ (kg. day)]/lipoic acid [20mg/ (kg. day)] was administered via the intra-gastric route daily for 6 weeks as co-treatment to the rats in the experimental groups. Then, 100µg/kg LPS combined with 0.5g/kg D-GalN was injected intraperitoneally to attack the rats. RESULTS: Genistein significantly attenuated LPS/D-GalN-induced ACLF, characterized by ameliorated gross appearance and microscopic histopathology of liver, reduced AST level in serum, whereas increased levels of ATP, ADP/O, and respiratory control ratio (RCR) in mitochondria. Genistein suppressed necrosis and ROS production. CONCLUSION: These results suggested that genistein could protect against ACLF through inhibiting cellular ROS production and necrosis, improving RCR, and decreasing permeability transition pores in mitochondrial, which was similar as mitochondrial protective agent coenzyme Q10.


Assuntos
Insuficiência Hepática Crônica Agudizada/tratamento farmacológico , Genisteína/farmacologia , Subunidade alfa do Fator 1 Induzível por Hipóxia/antagonistas & inibidores , Insuficiência Hepática Crônica Agudizada/metabolismo , Insuficiência Hepática Crônica Agudizada/patologia , Animais , Biomarcadores/metabolismo , Modelos Animais de Doenças , Subunidade alfa do Fator 1 Induzível por Hipóxia/metabolismo , Fígado/efeitos dos fármacos , Fígado/patologia , Masculino , Inibidores de Proteínas Quinases/farmacologia , Ratos , Ratos Sprague-Dawley , Espécies Reativas de Oxigênio/metabolismo
13.
Pak J Pharm Sci ; 32(5(Special)): 2449-2453, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31894033

RESUMO

The research was carried out to observe the effect of erythromycin pleural fixation in treatment of spontaneous pneumothorax. The 160 patients who had been treated for spontaneous pneumothorax were selected as research objects. They were treated with erythromycin pleural fixation. Statistics were made on the intraoperative blood loss, analgesic dosage, thoracic drainage volume and postoperative hospital stay of the patients. In addition, the overall treatment efficiency of the patients was calculated, and VAS score and SF-36 scale were used to observe the pain degree and quality of life of the patients. The overall treatment efficiency was 87.50% (140/160). Intraoperative blood loss was (106.18±19.03) mL, analgesic dosage was (145.90±20.16) mg, chest drainage was (205.27±34.23) mL and postoperative hospital stay was (4.7±1.2) days. The white blood cell count, neutrophil cell count and mononuclear cell count were recorded. The results showed there were no significant differences in these three indexes before and after the treatment, p>0.05. None of the patients had serious adverse reaction problems. Hence the conclusion was drawn that erythromycin pleurodesis can be used to treat spontaneous pneumothorax patients, and achieve good results.


Assuntos
Antibacterianos/uso terapêutico , Eritromicina/uso terapêutico , Pleurodese/métodos , Pneumotórax/terapia , Adulto , Idoso , Antibacterianos/administração & dosagem , Eritromicina/administração & dosagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
14.
Biochem Biophys Res Commun ; 495(1): 267-272, 2018 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-29107691

RESUMO

Tumor angiogenesis plays essential roles during lung cancer progression and metastasis. Therapeutic agent that targets both tumor cell and vascular endothelial cell may achieve additional anti-tumor efficacy. We demonstrate that bedaquiline, a FDA-approved antibiotic drug, effectively targets lung cancer cells and angiogenesis. Bedaquiline dose-dependently inhibits proliferation and induces apoptosis of a panel of lung cancer cell lines regardless of subtypes and molecular heterogeneity. Bedaquiline also inhibits capillary network formation of human lung tumor associated-endothelial cell (HLT-EC) on Matrigel and its multiple functions, such as spreading, proliferation and apoptosis, even in the presence of vascular endothelial growth factor (VEGF). We further demonstrate that bedaquiline acts on lung cancer cells and HLT-EC via inhibiting mitochondrial respiration and glycolysis, leading to ATP reduction and oxidative stress. Consistently, oxidative damage on DNA, protein and lipid were detected in cells exposed to bedaquiline. Importantly, the results obtained in in vitro cell culture are reproducible in in vivo xenograft lung cancer mouse model, confirming that bedaquiline suppresses lug tumor growth and angiogenesis, and increases oxidative stress. Our findings demonstrating that energy depletion is effectively against lung tumor cells and angiogenesis. Our work also provide pre-clinical evidence to repurpose antibiotic bedaquiline for lung cancer treatment.


Assuntos
Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Diarilquinolinas/administração & dosagem , Metabolismo Energético/efeitos dos fármacos , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/metabolismo , Neovascularização Patológica/tratamento farmacológico , Células A549 , Trifosfato de Adenosina/metabolismo , Animais , Antibacterianos/administração & dosagem , Antineoplásicos/administração & dosagem , Linhagem Celular Tumoral , Relação Dose-Resposta a Droga , Humanos , Neoplasias Pulmonares/patologia , Camundongos , Camundongos SCID , Neovascularização Patológica/metabolismo , Neovascularização Patológica/patologia , Resultado do Tratamento
15.
J Transl Med ; 16(1): 126, 2018 05 10.
Artigo em Inglês | MEDLINE | ID: mdl-29747694

RESUMO

BACKGROUND: Stem cell therapy has been applied in the treatment of acute-on-chronic liver failure (ACLF). However, its clinical efficiency is still debatable. The aim of this systematic review and meta-analysis is to evaluate the clinical efficiency of stem cell therapy in the treatment of ACLF. METHODS: The Cochrane Library, OVID, EMBASE, and PUBMED were searched to December 2017. Both randomized and non-randomized studies, assessing stem cell therapy in patients with ACLF, were included. The outcome measures were total bilirubin (TBIL), alanine transaminase (ALT), international normalized ratio (INR), albumin (ALB), and the model for end-stage liver disease (MELD) score. The quality of evidence was assessed by GRADEpro. RESULTS: Four randomized controlled trials and six non-randomized controlled trials were included. The TBIL levels significantly decreased at 1-, 3-, 12-month after the stem cell therapy (p = 0.0008; p = 0.04; p = 0.007). The ALT levels decreased significantly compared with the control group in the short-term (p < 0.00001). There was no obvious change in the INR level compared with the control groups (p = 0.64). The ALB levels increased markedly as compared with the control groups (p < 0.0001). The significant difference can be found in MELD score between stem cell therapy and control groups (p = 0.008). Further subgroup analysis for 3-month clinical performance according to the stem cell types have also been performed. CONCLUSION: This study suggests that the clinical outcomes of stem cell therapy were satisfied in patients with ACLF in the short-term. MSCs may be better than BM-MNCs in the stem cells transplantation of ACLF. However, more attention should focus on clinical trials in large-volume centers.


Assuntos
Insuficiência Hepática Crônica Agudizada/terapia , Transplante de Células-Tronco , Insuficiência Hepática Crônica Agudizada/fisiopatologia , Seguimentos , Humanos , Fígado/lesões , Fígado/fisiopatologia , Testes de Função Hepática
16.
Hepatol Res ; 48(2): 153-164, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28456135

RESUMO

AIM: To determine the differential characteristics and prognosis of patients with hepatitis B virus (HBV)-related acute-on-chronic liver failure (ACLF) detected using Asian Pacific Association for the Study of the Liver (APASL) criteria and then classified using European Association for the Study of the Liver-Chronic Liver Failure (EASL-CLIF) criteria. METHODS: We retrospectively reviewed 316 HBV-related APASL ACLF patients treated at Beijing 302 Hospital or Beijing You'An Hospital (both Beijing, China) between February 2015 and February 2016. Clinical characteristics and mortality rates were compared among patients with different EASL-CLIF ACLF severity grades (no ACLF, and ACLF grades 1-3). RESULTS: According to the EASL-CLIF criteria, 138 patients had no ACLF, 123 had ACLF at enrollment, and 55 developed ACLF during hospitalization. Both 28-day and 90-day transplant-free mortality were dramatically lower in patients without EASL-CLIF ACLF (0.7% and 5.1%, respectively) than in patients with EASL-CLIF ACLF (40.7% and 63.2%, respectively; both P < 0.001). Liver failure rates were similar in patients with and without EASL-CLIF ACLF, but extrahepatic organ failure was rare in patients without EASL-CLIF ACLF. Baseline serum creatinine, new bacterial infection and new acute kidney injury during hospitalization, maximum rising rates of CLIF-C ACLF score, and Model for End-stage Liver Disease score were independent predictors of EASL-CLIF ACLF after enrollment. CONCLUSIONS: The EASL-CLIF ACLF classification can accurately prognosticate the short-term mortality of patients with HBV-related APASL ACLF. It can also distinguish distinct clinical characteristics and prognoses in patients with and without EASL-CLIF ACLF.

17.
J Clin Microbiol ; 55(10): 2972-2982, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-28747369

RESUMO

The study was designed to investigate whether serum hepatitis B virus (HBV) RNA is a strong surrogate marker for intrahepatic HBV covalently closed circular DNA (cccDNA) compared with serum HBV DNA, hepatitis B surface antigen (HBsAg), and hepatitis B e antigen (HBeAg) in HBeAg-positive chronic hepatitis B (CHB) patients. Serum HBV RNA, HBV DNA, HBsAg, HBeAg, and intrahepatic cccDNA were quantitatively detected at baseline (n = 82) and 96 weeks (n = 62) after treatment with nucleos(t)ide analogue (NUC) in HBeAg-positive CHB patients. The correlations among serum HBV RNA, HBV DNA, HBsAg, HBeAg, and intrahepatic cccDNA levels were then statistically analyzed. The results showed that pretreatment intrahepatic cccDNA levels correlated better with serum HBV DNA levels (r = 0.36, P < 0.01) than with serum HBV RNA levels (r = 0.25, P = 0.02), whereas no correlations were found between pretreatment intrahepatic cccDNA levels and HBsAg (r = 0.15, P = 0.17) or HBeAg (r = 0.07, P = 0.56) levels. At 96 weeks after NUC treatment, intrahepatic cccDNA levels correlated well with HBsAg levels (r = 0.39, P < 0.01) but not with serum HBV RNA, HBV DNA, and HBeAg levels (all P > 0.05). Besides, the decline in the intrahepatic cccDNA level from baseline to week 96 correlated better with the reduction in the serum HBsAg levels than with the decreases in the levels of the other markers (for the HBsAg decline, r = 0.38, P < 0.01; for the HBV DNA decline, r = 0.35, P = 0.01; for the HBV RNA decline, r = 0.28, P < 0.05; for the HBeAg decline, r = 0.18, P = 0.19). In conclusion, the baseline serum HBV RNA level or its decline after 96 weeks of NUC therapy correlated with the corresponding intrahepatic cccDNA level, while it was less than that seen with serum HBV DNA at baseline and HBsAg (or its decline) at 96 weeks after treatment, respectively.


Assuntos
DNA Circular/sangue , DNA Viral/sangue , Antígenos de Superfície da Hepatite B/sangue , Antígenos E da Hepatite B/sangue , Hepatite B Crônica/diagnóstico , RNA Viral/sangue , Adolescente , Adulto , Antivirais/uso terapêutico , DNA Circular/genética , DNA Viral/genética , Feminino , Vírus da Hepatite B/genética , Vírus da Hepatite B/isolamento & purificação , Hepatite B Crônica/virologia , Humanos , Fígado/virologia , Masculino , Pessoa de Meia-Idade , Nucleosídeos/uso terapêutico , Nucleotídeos/uso terapêutico , RNA Viral/genética , Adulto Jovem
18.
Biomarkers ; 22(7): 654-660, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27998182

RESUMO

PURPOSE: Using transrenal DNA to detect KRAS mutations in non-small cell lung cancer (NSCLC), the study addressed the clinical impact for longitudinal monitoring and prognostic value for disease outcome. METHODS: Digital droplet PCR was used to detect the mutant DNA. A total of 200 NSCLC patients were recruited with varying molecular profiles. To ascertain the specificity of transrenal DNA to accurately profile the disease, primary tissues were compared. Subsequently, serial samplings were performed at different treatment cycles to gauge the predictive value. RESULTS: Transrenal DNA was successfully detected in all 200 patients. Overall concordance rate for mutant KRAS DNA within urine specimens and primary tissue biopsies was 95% (k = 0.87; 95% CI: 0.82-0.95). Patients with positive results at baseline had lower median overall survival (OS) than the wildtype group. More importantly, longitudinal monitoring of urine specimens showed an increase in the quantity of transrenal DNA, which were highly associated with disease progression and outcome. CONCLUSIONS: Our study showed a highly associative link to the patient's tumor KRAS profile. Monitoring its variations aided in stratifying patients with worse outcome. Urinary specimens that can be extracted non-invasively presents new opportunities to track patients with KRAS mutation undergoing therapy.


Assuntos
Carcinoma Pulmonar de Células não Pequenas/genética , Progressão da Doença , Neoplasias Pulmonares , Mutação , Proteínas Proto-Oncogênicas p21(ras)/genética , Carcinoma Pulmonar de Células não Pequenas/diagnóstico , Carcinoma Pulmonar de Células não Pequenas/mortalidade , Carcinoma Pulmonar de Células não Pequenas/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , Proteínas Proto-Oncogênicas p21(ras)/urina , Taxa de Sobrevida
19.
J Gastroenterol Hepatol ; 32(8): 1503-1511, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28087980

RESUMO

BACKGROUND AND AIM: Glypican-3 (GPC3) expression is correlated with poor prognosis and progression in hepatocellular carcinoma (HCC). HCC progression can be associated with the differentiation status of tumor cell before malignant transformation. Our aim was to investigate the dynamic expression of GPC3 during tumor cells differentiation and to explore the role and theoretical significance of GPC3 in malignant essence of HCC. METHODS: The expressions of tissue GPC3 and alpha fetoprotein (AFP) were detected by immunohistochemical staining. The tumor size, lymph node involvement, and metastasis were determined by pathological and imaging studies. HepG2 cells were induced to differentiate by all-trans retinoic acid (ATRA). Differentiation was evaluated by cytokeratin 19, gamma glutamyl transferase, and AFP through reverse transcription-polymerase chain reaction and real-time polymerase chain reaction. GPC3 staining was analyzed through flow cytometry. RESULTS: Based on the immunohistochemical staining, the enrolled 316 cases were divided into two subtypes, namely, GPC3+ HCC and GPC3- HCC. Significant differences in morphology, histology variations, AFP expression, TNM staging, and overall survival curves were observed between two subtypes. During HCC differentiation induced by ATRA, the mean value of GPC3 expression treated with ATRA was much lower than the ones in placebo. There were significant differences between GPC3+ HCC and GPC3- HCC for cumulative intrahepatic and extrahepatic recurrence in early stage HCC (P = 0.009, P = 0.010). CONCLUSIONS: Glypican-3 is correlated with the clinical malignant behavior of HCC. Moreover, GPC3 phenotype changes from positive to negative during tumor cells differentiation. Meanwhile, GPC3 plays a significant role in tumor cellular origin theoretical system, which can better reflect the malignant essence of tumors.


Assuntos
Carcinoma Hepatocelular/genética , Transformação Celular Neoplásica/genética , Transformação Celular Neoplásica/patologia , Glipicanas/genética , Neoplasias Hepáticas/genética , Transcriptoma/genética , Carcinoma Hepatocelular/patologia , Progressão da Doença , Células Hep G2 , Humanos , Neoplasias Hepáticas/patologia , Prognóstico , alfa-Fetoproteínas/genética
20.
J BUON ; 22(6): 1422-1427, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29332333

RESUMO

PURPOSE: Green tea (Camellia sinensis) is considered as a rich source of epigallocatechin gallate (EGCG) which has been shown to exert impressive pharmacological properties. The anticancer properties of EGCG have been extensively studied however, its anticancer activity has not been explored in lung cancer. The present study was therefore designed to evaluate the anticancer effects of EGCG against non-small cell lung cancer (NSCLC) cell line A-549 and normal human fibroblast FR-2 cells. METHODS: Cell viability was assessed by CCK8 assay, apoptosis by DAPI, annexin V/propidium iodide (PI) and flowcytometery and cell cycle analysis by flow cytometry. Cell migration capacity was investigated by wound-healing assay and protein expression was examined by Western blotting. RESULTS: The results revealed that EGCC could inhibit the proliferation of A-549 cells in a concentration-dependent manner and exhibited an IC50 of 25 µM against the IC50 of 100 µM against the normal human fibroblasts. Further evaluation revealed that EGCG exerts its anticancer effects via induction of apoptosis, modulation of Bax/blc-2 ratio and by triggering G2/M cell cycle arrest. Furthermore, EGCG could also inhibit the migration of A5-49 cells in a concentration-dependent manner. CONCLUSION: In conclusion, based on our results, we believe that EGCG could prove to be an important lead molecule for the treatment of lung cancer.


Assuntos
Antineoplásicos/uso terapêutico , Apoptose/efeitos dos fármacos , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Catequina/análogos & derivados , Pontos de Checagem do Ciclo Celular/efeitos dos fármacos , Movimento Celular/efeitos dos fármacos , Neoplasias Pulmonares/tratamento farmacológico , Chá/química , Carcinoma Pulmonar de Células não Pequenas/patologia , Catequina/farmacologia , Catequina/uso terapêutico , Linhagem Celular Tumoral , Humanos , Neoplasias Pulmonares/patologia
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