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1.
J Agric Food Chem ; 68(24): 6615-6627, 2020 Jun 17.
Artigo em Inglês | MEDLINE | ID: mdl-32419453

RESUMO

This study investigated the protective effects of pu-erh tea extract (PTE) on alcohol-induced microbiomic and metabolomic disorders. In chronic alcohol-exposed mice, PTE ameliorated chronic alcoholic consumption-induced oxidative stress, inflammation, lipid accumulation, and liver and colon damage through modulating microbiomic and metabolomic responses. PTE restored the alcohol-induced fecal microbiota dysbiosis by elevating the relative abundance of potentially beneficial bacteria, for example, Bifidobacterium and Allobaculum, and decreasing the relative abundance of potentially harmful bacteria, for example, Helicobacter and Bacteroides. The alcohol-induced metabolomic disorder was modulated by PTE, which was characterized by regulations of lipid metabolism (sphingolipid, glycerophospholipid, and linoleic acid metabolism), amino acid metabolism (phenylalanine and tryptophan metabolism), and purine metabolism. Besides, the bacterial metabolites of phytochemicals in PTE might contribute to the protective effects of PTE. Overall, PTE could be a functional beverage to treat chronic alcohol consumption-induced microbiomic and metabolomic disorders.


Assuntos
Consumo de Bebidas Alcoólicas/metabolismo , Álcoois/efeitos adversos , Camellia sinensis/metabolismo , Microbioma Gastrointestinal , Metaboloma/efeitos dos fármacos , Chá/metabolismo , Animais , Bactérias/efeitos dos fármacos , Bactérias/genética , Bactérias/isolamento & purificação , Bactérias/metabolismo , Humanos , Masculino , Camundongos , Camundongos Endogâmicos C57BL
2.
J Breath Res ; 14(3): 031001, 2020 04 15.
Artigo em Inglês | MEDLINE | ID: mdl-31972555

RESUMO

The aim of this proof of concept study is to investigate if an electronic nose (eNose) is able to make a distinction between breath profiles of diagnosed epilepsy patients and epilepsy-free control subjects. An eNose is a non-invasive device, with a working mechanism that is based on the presence of volatile organic compounds (VOCs) in exhaled breath. These VOCs interact with the sensors of the eNose, and the eNose has to be trained to distinguish between breath patterns from patients with a specific disease and control subjects without that disease. During the measurement participants were asked to breathe through the eNose for five minutes via a disposable mouthpiece. Seventy-four epilepsy patients and 110 control subjects were measured to train the eNose and create a classification model. To assess the effects of anti-epileptic drugs (AEDs) usage on the classification, additional test groups were measured: seven patients who (temporarily) did not use AEDs and 11 patients without epilepsy who used AEDs. The results show that an eNose is able to make a distinction between epilepsy and control subjects with a sensitivity of 76%, a specificity of 67%, and an accuracy of 71%. The results of the two additional groups of subjects show that the created model classifies one out of seven epilepsy patients without AEDs and six out of 13 patients without epilepsy but with AEDs correctly. In this proof of concept study, the AeonoseTM is able to differentiate between epilepsy patients and control subjects. However, the number of false positives and false negatives is still high, which suggests that this first model is still mainly based on the usage of various AEDs.


Assuntos
Testes Respiratórios/métodos , Epilepsia/diagnóstico , Adulto , Álcoois/efeitos adversos , Anticonvulsivantes/uso terapêutico , Estudos de Casos e Controles , Fumar Cigarros/efeitos adversos , Café/efeitos adversos , Nariz Eletrônico , Epilepsia/tratamento farmacológico , Expiração , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Curva ROC
3.
J Agric Food Chem ; 67(38): 10667-10677, 2019 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-31483636

RESUMO

This study investigated the modulatory effects of Decaisnea insignis seed oil (DISO), which was rich in palmitoleic acid (55.25%), palmitic acid (12.25%), and oleic acid (28.74%), on alcohol-induced metabolism disorder in mice. Fifty mice were orally administered with 38% alcohol (0.4 mL/day) and without or with DISO (3, 6, and 12 g/kg) for consecutive 12 weeks. DISO inhibited the alcohol-induced weight loss and liver function abnormality (p < 0.01) and shifted the profiles of cecal microbiome: elevating the abundance of Lactobacillus, Ruminoccoceae_UCG_004 (p < 0.05) and decreasing abundance of Parabacteroides (p < 0.05). This treatment also regulated metabolome response of amino acid and lipid metabolism in cecal content: upregulating 5-hydroxyindole-3-acetic acid (p < 0.05), 6-hydroxynicotinic acid, 5-methoxytryptamine, nicotinamide, and nicotinic acid (p < 0.1) and downregulating androsterone, tryptophan, and indole-3-acetamide (p < 0.05). DISO protected against alcoholic liver injury and gut microbiota dysbiosis by enriching the relative abundance of Lactobacillus, which was positively associated with the improvement of intestinal permeability and tryptophan metabolism.


Assuntos
Álcoois/efeitos adversos , Disbiose/prevenção & controle , Microbioma Gastrointestinal/efeitos dos fármacos , Hepatopatias Alcoólicas/prevenção & controle , Magnoliopsida/química , Óleos de Plantas/administração & dosagem , Consumo de Bebidas Alcoólicas/efeitos adversos , Aminoácidos/metabolismo , Animais , Bactérias/classificação , Bactérias/efeitos dos fármacos , Bactérias/genética , Bactérias/isolamento & purificação , Ceco/efeitos dos fármacos , Ceco/microbiologia , Disbiose/metabolismo , Disbiose/microbiologia , Humanos , Metabolismo dos Lipídeos/efeitos dos fármacos , Fígado/efeitos dos fármacos , Fígado/metabolismo , Hepatopatias Alcoólicas/metabolismo , Hepatopatias Alcoólicas/microbiologia , Masculino , Metaboloma/efeitos dos fármacos , Camundongos , Microbiota/efeitos dos fármacos , Sementes/química
4.
J Sci Food Agric ; 99(15): 6822-6832, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31385307

RESUMO

BACKGROUND: Angiotensin-converting enzyme (ACE) inhibitory peptides were found to alleviate acute hepatitis significantly. In this study, we purified and identified ACE inhibitory peptide from cashew to evaluate its protective role on alcohol-induced acute hepatitis in mice. RESULTS: The ACE inhibitory peptides were purified by using consecutive chromatographic techniques. One of these peptides (FETISFK) exhibited the highest ACE inhibition rate (91.04 ± 0.31%). In vivo, the results showed that ACE inhibitory peptide decreased levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) caused by alcohol exposure. Moreover, it could increase the activities of superoxide dismutase (SOD) and glutathione (GSH), and decrease the level of malondialdehyde (MDA). It was also found to down-regulate markedly the expression of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α). It could also decrease the expression of ACE, angiotensin II (AngII) and angiotensin II type 1 receptor (AT1 R). CONCLUSION: These findings support the view that the ACE inhibitory peptide alleviated acute hepatitis by down-regulating the ACE-AngII-AT1 R axis, broadening the research approach to prevent acute hepatitis, and providing experimental data for the development and utilization of cashews. © 2019 Society of Chemical Industry.


Assuntos
Anacardium/química , Inibidores da Enzima Conversora de Angiotensina/química , Hepatite/tratamento farmacológico , Peptídeos/química , Extratos Vegetais/química , Doença Aguda/terapia , Álcoois/efeitos adversos , Angiotensina II/genética , Angiotensina II/metabolismo , Inibidores da Enzima Conversora de Angiotensina/administração & dosagem , Inibidores da Enzima Conversora de Angiotensina/isolamento & purificação , Animais , Aspartato Aminotransferases/genética , Aspartato Aminotransferases/metabolismo , Hepatite/enzimologia , Hepatite/etiologia , Humanos , Interleucina-6/genética , Interleucina-6/metabolismo , Masculino , Camundongos , Nozes/química , Peptídeos/administração & dosagem , Peptídeos/isolamento & purificação , Peptidil Dipeptidase A/química , Peptidil Dipeptidase A/metabolismo , Extratos Vegetais/administração & dosagem , Extratos Vegetais/isolamento & purificação , Fator de Necrose Tumoral alfa/genética , Fator de Necrose Tumoral alfa/metabolismo
5.
Med Intensiva (Engl Ed) ; 43 Suppl 1: 7-12, 2019 Mar.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-30447857

RESUMO

Antiseptics are chemical substances that when applied topically onto intact skin, mucous membranes or wounds partially or completely reduces the population of living microorganisms in those tissues. Different types of antiseptics are available - those most commonly used in clinical practice being alcohols, iodinated compounds and chlorhexidine. When using an antiseptic, consideration is required of its spectrum of antimicrobial activity, latency, residual effects, possible interferences of the presence of organic material with the activity of the antiseptic, its side effects, compatibility with other antiseptics, and cost. This article is part of a supplement entitled "Antisepsis in the critical patient", which is sponsored by Becton Dickinson.


Assuntos
Álcoois/farmacologia , Anti-Infecciosos Locais/farmacologia , Compostos de Iodo/farmacologia , Álcoois/efeitos adversos , Anti-Infecciosos Locais/efeitos adversos , Anti-Infecciosos Locais/classificação , Cátions/efeitos adversos , Cátions/farmacologia , Clorexidina/efeitos adversos , Clorexidina/farmacologia , Interações Medicamentosas , Etanol/efeitos adversos , Etanol/farmacologia , Humanos , Peróxido de Hidrogênio/efeitos adversos , Peróxido de Hidrogênio/uso terapêutico , Unidades de Terapia Intensiva , Iodo/efeitos adversos , Iodo/farmacologia , Compostos de Iodo/efeitos adversos , Iodóforos/efeitos adversos , Iodóforos/farmacologia , Compostos de Mercúrio/farmacologia , Propranolol/efeitos adversos , Propranolol/farmacologia , Sulfadiazina/efeitos adversos , Sulfadiazina/farmacologia , Triclosan/efeitos adversos , Triclosan/farmacologia
6.
Acupunct Med ; 36(5): 275-283, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30030272

RESUMO

BACKGROUND: Acupuncture has been used as a potential therapy for alcohol withdrawal syndrome (AWS), but evidence for its effects on this condition is limited. OBJECTIVE: To assess the effects and safety of acupuncture for AWS. DATA SOURCES: Central Register of Controlled Trials (CENTRAL), PubMed, Embase, the Cochrane Library, PsycINFO, Chinese Biomedicine Literature (CBM), China National Knowledge Infrastructure (CNKI) and Wan-Fang Database were searched from their inception to August 2016. STUDY ELIGIBILITY CRITERIA: Randomised controlled trials (RCTs) of drug plus acupuncture or acupuncture alone for the treatment of AWS were included. DATA COLLECTION AND ANALYSIS: Continuous data were expressed as mean difference (MD) with 95% confidence intervals (95% CI). Dichotomous data were expressed as risk ratio (RR) with 95% CI. RESULTS: Eleven RCTs with 875 participants were included. In the acute phase, two trials reported no difference between drug plus acupuncture and drug plus sham acupuncture in the reduction of craving for alcohol; however, two positive trials reported that drug plus acupuncture was superior to drug alone in the alleviation of psychological symptoms. In the protracted phase, one trial reported acupuncture was superior to sham acupuncture in reducing the craving for alcohol, one trial reported no difference between acupuncture and drug (disulfiram), and one trial reported acupuncture was superior to sham acupuncture for the alleviation of psychological symptoms. Adverse effects were tolerable and not severe. CONCLUSION: There was nosignificant difference between acupuncture (plus drug) and sham acupuncture (plus drug) with respect to the primary outcome measure of craving for alcohol among participants with AWS, and no difference in completion rates (pooled results). There was limited evidence from individual trials that acupuncture may reduce alcohol craving in the protracted phase and help alleviate psychological symptoms; however, given concerns about the quantity and quality of included studies, further large-scale and well-conducted RCTs are needed. PROTOCOL REGISTRATION: PROSPERO CRD42016039862.


Assuntos
Terapia por Acupuntura , Transtornos Relacionados ao Uso de Álcool/terapia , Álcoois/efeitos adversos , Síndrome de Abstinência a Substâncias/terapia , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto
7.
Food Funct ; 9(6): 3155-3165, 2018 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-29862408

RESUMO

The aim of this study was to investigate the protective effect and mechanism of selenium-enriched Spirulina platensis (S. platensis) on chronic alcohol-induced liver injury. Selenium incubation raises the nutrition quality of S. platensis by absorption enhancement of functional elements. Our results demonstrated that the effective dose of selenium-enriched S. platensis on HL7702 cells treated with alcohol was 200 µg ml-1, containing 20% selenium. Selenium-enriched S. platensis could raise the cell survival rate by decreasing the expression of p53, Caspase3, LC3, and Caspase1 and by increasing the expression of p70s6k. In vivo experiments, where mice were pretreated with selenium-enriched S. platensis, exhibited obvious inhibition of the liver function index and this pretreatment enhanced the activity of GSH-Px and SOD in alcohol induced mice. In summary, our results indicate that the protective mechanism of selenium-enriched S. platensis on chronic alcoholic liver injury is associated with the activity enhancement of antioxidant enzymes and immunity, the inhibition of DNA damage and apoptosis, accompanied with autophagy and pyroptosis.


Assuntos
Álcoois/efeitos adversos , Doença Hepática Crônica Induzida por Substâncias e Drogas/prevenção & controle , Selênio/administração & dosagem , Spirulina/química , Animais , Caspase 3/genética , Caspase 3/metabolismo , Doença Hepática Crônica Induzida por Substâncias e Drogas/genética , Doença Hepática Crônica Induzida por Substâncias e Drogas/metabolismo , Dano ao DNA , Glutationa Peroxidase/genética , Glutationa Peroxidase/metabolismo , Humanos , Fígado/efeitos dos fármacos , Masculino , Malondialdeído/metabolismo , Camundongos , Estresse Oxidativo/efeitos dos fármacos , Proteínas Quinases S6 Ribossômicas 70-kDa/genética , Proteínas Quinases S6 Ribossômicas 70-kDa/metabolismo , Superóxido Dismutase/genética , Superóxido Dismutase/metabolismo
8.
Food Funct ; 9(2): 774-784, 2018 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-29309081

RESUMO

In this study, the ameliorative effect of chicken breast muscle hydrolysates (CBMHs) against acute alcohol-induced liver injury was investigated and its probable mechanism was further elucidated. In vitro studies clearly showed that CBMHs are able to activate alcohol metabolic enzymes (i.e. alcohol dehydrogenase, ADH) in an exponential manner. Meanwhile, an in vivo experiment on male NIH mice indicated that the oral administration of CBMHs (150, 300 and 600 mg per kg bw) 30 min prior to acute alcohol ingestion could significantly promote alcohol metabolism as revealed by the reduced duration of the loss of righting reflex (LORR) and the enhanced activity of alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH) in the liver, the latter accelerating alcohol oxidation and therefore the decreased blood alcohol concentration (BAC) level. Pretreatment with CBMHs significantly decreased the elevations of serum aspartate transaminase (AST) and alanine transaminase (ALT) after alcohol administration. CBMHs could also retard lipid peroxidation as revealed by the suppressed malondialdehyde (MDA) level and simultaneously enhance the activities of superoxide dismutase (SOD) in liver tissue. Furthermore, increased histological damage and higher (p < 0.05) hepatic triglyceride (TG) contents in acute alcoholic-diet fed mice were also reduced (p < 0.05) by supplementing with CBMHs. These benefits clearly suggested that CBMHs could be a potential nutraceutical to facilitate alcohol metabolism and prevent or ameliorate early liver injury induced by acute alcohol exposure.


Assuntos
Álcool Desidrogenase/metabolismo , Álcoois/efeitos adversos , Doença Hepática Induzida por Substâncias e Drogas/tratamento farmacológico , Doença Hepática Induzida por Substâncias e Drogas/enzimologia , Músculos/química , Estresse Oxidativo/efeitos dos fármacos , Peptídeos/administração & dosagem , Doença Aguda/terapia , Alanina Transaminase/metabolismo , Animais , Aspartato Aminotransferases/metabolismo , Doença Hepática Induzida por Substâncias e Drogas/etiologia , Doença Hepática Induzida por Substâncias e Drogas/metabolismo , Galinhas , Humanos , Fígado/efeitos dos fármacos , Fígado/enzimologia , Fígado/metabolismo , Masculino , Malondialdeído/metabolismo , Camundongos , Peptídeos/química , Hidrolisados de Proteína/administração & dosagem , Hidrolisados de Proteína/química , Superóxido Dismutase/metabolismo
10.
Mol Med Rep ; 13(4): 3052-62, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26936686

RESUMO

The aims of the present study were to examine the hepatoprotective effect of Scutellaria baicalensis Georgi extract (Scutellariae Radix extract; SRE) against acute alcohol­induced liver injury in mice, and investigate the mechanism of endoplasmic reticulum (ER) stress. High performance liquid chromatography was used for the phytochemical analysis of SRE. Animals were administered orally with 50% alcohol (12 ml/kg) 4 h following administration of doses of SRE every day for 14 days, with the exception of normal control group. The protective effect was investigated by measuring the levels of aspartate transaminase (AST), alanine transferase (ALT) and triglyceride (TG) in the serum, and the levels of glutathione (GSH) and malondialdehyde (MDA) in liver tissues. The levels of glucose­related protein 78 (GRP78) were detected using immunohistochemical localization and an enzyme­linked immunosorbent assay. Hepatocyte apoptosis was assessed using terminal­deoxynucleoitidyl transferase mediated nick end labeling. The SRE contained 31.2% baicalin. Pretreatment with SRE had a marked protective effect by reversing the levels of biochemical markers and levels of GRP78 in a dose­dependent manner. The results of the present study demonstrated that pretreatment with SRE exerted a marked hepatoprotective effect by downregulating the expression of GRP78, which is a marker of ER stress.


Assuntos
Álcoois/efeitos adversos , Antioxidantes/farmacologia , Doença Hepática Induzida por Substâncias e Drogas/metabolismo , Estresse do Retículo Endoplasmático/efeitos dos fármacos , Extratos Vegetais/farmacologia , Scutellaria baicalensis/química , Alanina Transaminase/sangue , Animais , Antioxidantes/química , Aspartato Aminotransferases/sangue , Biomarcadores , Doença Hepática Induzida por Substâncias e Drogas/tratamento farmacológico , Doença Hepática Induzida por Substâncias e Drogas/patologia , Cromatografia Líquida de Alta Pressão , Modelos Animais de Doenças , Chaperona BiP do Retículo Endoplasmático , Glutationa/metabolismo , Fígado/efeitos dos fármacos , Fígado/metabolismo , Fígado/patologia , Masculino , Malondialdeído/metabolismo , Camundongos , Extratos Vegetais/química , Substâncias Protetoras/química , Substâncias Protetoras/farmacologia
11.
Afr J Tradit Complement Altern Med ; 13(4): 176-183, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-28852734

RESUMO

BACKGROUND: The current study was designed to evaluate the effect of Platycodin D (PD), triterpenoid saponins extracted from the roots of Platycodon grandiflorum (PG) on alcohol-induced fatty liver (AFL) and investigate the possible mechanism. METHODS AND MATERIALS: A rat model was set up by feeding ethanol and fish oil to experimental rats, which then were treated with PD of 10, 20, 30 mg/kg body weight/day for 4 weeks, respectively, whereafter, liver function enzymes, endotoxin of serum and liver lipid were assayed by biochemical methods, cytokines, histochemistry of hepatic tissue, the protein expression of CD14 and TLR4, the mRNA expression of MD-2, MyD 88 and TRAF-6 were assayed. RESULTS: Treatment with PD on AFL rats significantly decreased the levels of serum ALT, AST and TBIL, coefficient of liver index and the hepatic tissue contents of TG, additionally and dramatically decreased serum endotoxin levels, down-regulated MD-2 and CD14 levels, as well as the mRNA expression of TLR4, MyD88 and TRAF-6, accordingly suppressed NF-κB: p65 as well as endotoxin-mediated inflammatory factors such as TNF-α and IL-6. CONCLUSIONS: Treatment with PD effectively protects against AFL through anti-inflammatory and anti-endotoxic process, and the confirmed mechanism is that PD treatment ameliorate alcoholic-induced liver injury mainly via TLR4-MyD88-NF-K: B signal path in AFL rat. List of Abbreviations: AFL: alcoholic-induced fatty liver, CD14: cluster of differentiation 14, LPS: lipopolysaccharide, LBP: lipopolysaccharide-binding protein, TLR4: toll-like receptor 4, MD-2: molecule myeloid differential protein-2, MyD 88: myeloid differentiation primary response protein 88, TRAF-6: TNF-receptor associated factor-6, NF-κB: nuclear transcription factor kappa B, IL-6: interleukin-6, TNF-α: tumor necrosis factor-α, PG: Platycodon grandiflorum, PD: Platycodin D.


Assuntos
Álcoois/efeitos adversos , Anti-Inflamatórios/administração & dosagem , Medicamentos de Ervas Chinesas/administração & dosagem , Fígado Gorduroso/tratamento farmacológico , NF-kappa B/metabolismo , Platycodon/química , Saponinas/administração & dosagem , Receptor 4 Toll-Like/metabolismo , Triterpenos/administração & dosagem , Animais , Fígado Gorduroso/induzido quimicamente , Fígado Gorduroso/genética , Fígado Gorduroso/metabolismo , Humanos , Interleucina-6/genética , Interleucina-6/metabolismo , Masculino , NF-kappa B/genética , Raízes de Plantas/química , Ratos , Transdução de Sinais/efeitos dos fármacos , Receptor 4 Toll-Like/genética , Fator de Necrose Tumoral alfa/genética , Fator de Necrose Tumoral alfa/metabolismo
12.
Food Funct ; 6(5): 1418-27, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25927324

RESUMO

Platycodin D (PD) is the main active saponin of Platycodon grandiflorum (PG) and is reported to exhibit multiple biological effects, including anti-tumor, anti-inflammation, and anti-obesity properties. Although recently there have been many research reports on the chemical constituents of the plant's roots, only few works have been reported on the aerial parts of PG. In the present study, we report the first isolation of PD from the aerial parts of PG and its protective effect against acute alcohol-induced liver oxidative injury and inflammatory response in mice. In brief, the protective effect was evaluated by tracking biochemical markers, enzymatic antioxidants and proinflammatory cytokines in serum and liver tissue. The results indicated that PD pretreatment significantly decreased the levels of triglyceride (TG), total cholesterol (TC), low density lipoprotein cholesterol (L-DLC) in serum and malondialdehyde (MDA) in liver. PD was also found to increase the activities of catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px) in the liver (p < 0.05). In addition, PD markedly decreased the levels of proinflammatory cytokines, including tumor necrosis factor-α (TNF-α), interleukin (IL)-1ß, and IL-6, which was caused by alcohol exposure (p < 0.05). In contrast, histopathological examinations revealed that PD pretreatment noticeably prevented alcohol-induced hepatocyte apoptosis and steatosis. Collectively, the present study clearly suggests that the protective effect exhibited by PD on alcohol-induced liver oxidative injury may occur via the alleviation of oxidative stress and inflammatory response.


Assuntos
Álcoois/efeitos adversos , Doença Hepática Induzida por Substâncias e Drogas/tratamento farmacológico , Componentes Aéreos da Planta/química , Extratos Vegetais/administração & dosagem , Platycodon/química , Substâncias Protetoras/administração & dosagem , Alanina Transaminase/sangue , Animais , Doença Hepática Induzida por Substâncias e Drogas/genética , Doença Hepática Induzida por Substâncias e Drogas/metabolismo , Glutationa/metabolismo , Glutationa Peroxidase/metabolismo , Humanos , Interleucina-6/metabolismo , Fígado/efeitos dos fármacos , Fígado/enzimologia , Fígado/metabolismo , Malondialdeído/metabolismo , Camundongos , Camundongos Endogâmicos ICR , Estresse Oxidativo/efeitos dos fármacos , Extratos Vegetais/isolamento & purificação , Substâncias Protetoras/isolamento & purificação , Superóxido Dismutase/metabolismo
13.
Food Funct ; 6(5): 1510-7, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25820653

RESUMO

The aim of the present study was to evaluate the effects of Penthorum chinense Pursh (PCP), a health food and folk medicine, against acute alcohol-induced liver injury and further to elucidate its probable mechanisms. Male C57BL/6 mice were treated with an aqueous extract of PCP (5.2 and 10.3 g per kg BW) once daily for 7 consecutive days prior to ethanol gavage (4.7 g kg(-1)) every 12 h for a total of three doses. Pretreatment with PCP significantly decreased the elevations of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and hepatic triglyceride after the last ethanol administration. PCP suppressed the elevation of the malondialdehyde (MDA) level, restored the glutathione (GSH) level and enhanced the activities of superoxide dismutase (SOD) and catalase (CAT) in both the serum and liver, which were associated with the inhibition of hepatic cytochrome P450 2E1 (CYP2E1). In addition, alcohol exposure markedly induced the lipolysis of white adipose tissue (WAT) through up-regulating protein expressions of adipose triglyceride lipase (ATGL) and phosphorylation of hormone-sensitive lipase (p-HSL), and enhancing the fatty acid uptake capacity in the liver by elevated hepatic CD36 expression, which were attenuated by PCP treatment. These data demonstrated that pre-treatment with PCP protected against acute ethanol-induced liver injury, possibly by reducing CYP2E1-dependent oxidative stress and ameliorating dysfunctional WAT derived-fatty acid influx to the liver. Our findings suggest that PCP might be a promising agent for the prevention of acute alcohol-induced liver injury.


Assuntos
Álcoois/efeitos adversos , Doença Hepática Induzida por Substâncias e Drogas/tratamento farmacológico , Medicamentos de Ervas Chinesas/administração & dosagem , Fígado Gorduroso/tratamento farmacológico , Magnoliopsida/química , Estresse Oxidativo/efeitos dos fármacos , Substâncias Protetoras/administração & dosagem , Alanina Transaminase/metabolismo , Animais , Aspartato Aminotransferases/metabolismo , Doença Hepática Induzida por Substâncias e Drogas/enzimologia , Doença Hepática Induzida por Substâncias e Drogas/metabolismo , Citocromo P-450 CYP2E1/metabolismo , Fígado Gorduroso/enzimologia , Fígado Gorduroso/metabolismo , Glutationa/metabolismo , Humanos , Fígado/efeitos dos fármacos , Fígado/enzimologia , Fígado/metabolismo , Masculino , Malondialdeído/metabolismo , Camundongos , Camundongos Endogâmicos C57BL , Superóxido Dismutase/metabolismo
14.
Zhongguo Zhong Yao Za Zhi ; 39(14): 2721-5, 2014 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-25272503

RESUMO

OBJECTIVE: To evaluate the protective effects of punicosides on alcohol induced acute liver injury in mice and its possible mechanisms as well. METHOD: The 60 mice were randomly divided into normal control, model group, three dose groups of punicosides with low, medium and high, then there is silibinin group. Three dose groups of punicosides and silibinin were given in advance by gavage for 4 weeks, then the mouse model of alcoholic acute liver injury was established. The serum levels of ALT, AST and TG were determined, and the mice were killed to calculate somatic index of liver, thymus as well as spleen. MDA, SOD, GSH-Px and GSH-ST were detected in the liver homogenate. Histopathological changes of the liver were observed by HE staining. The expression of MCP-1 and NF-kappaB in the liver tissues were detected by immunohistochemistry. RESULT: Mid and high dose of punicosides reduced the liver index in mice significantly, improved liver steatosis, decreased the level of ALT, AST and TG in serum and the content of MDA in liver homogenate, furthermore the two dose groups increased the activity of SOD, GSH-Px and GSH-ST, inhibited the expression of MCP-1 and NF-kappaB in liver tissue. CONCLUSION: Punicosides can protect the acute liver damage induced by alcohol.


Assuntos
Álcoois/efeitos adversos , Doença Hepática Induzida por Substâncias e Drogas/tratamento farmacológico , Medicamentos de Ervas Chinesas/farmacologia , Fígado/efeitos dos fármacos , Animais , Doença Hepática Induzida por Substâncias e Drogas/sangue , Doença Hepática Induzida por Substâncias e Drogas/metabolismo , Doença Hepática Induzida por Substâncias e Drogas/patologia , Quimiocina CCL2/metabolismo , Medicamentos de Ervas Chinesas/uso terapêutico , Feminino , Regulação da Expressão Gênica/efeitos dos fármacos , Fígado/enzimologia , Fígado/patologia , Masculino , Malondialdeído/metabolismo , Camundongos , NF-kappa B/metabolismo
15.
Food Funct ; 5(5): 900-8, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24603671

RESUMO

The antioxidant potential of jujube honey, one of the most widely consumed honeys in China, has never been determined fully. In this study, jujube honey from six geographical origins in China was analyzed for individual phenolic acid, total phenolic content, and the antioxidant effect in chronic alcohol-related hepatic disease in mice. The results showed that jujube honey from Linxian of Shanxi province contained higher phenol levels, exhibited DPPH antioxidant activity, ferric ion reducing antioxidant power (FRAP) and protective effects against DNA damage. Treatment with jujube honey (Shanxi Linxian) for 12 weeks significantly inhibited serum lipoprotein oxidation, reduced the impact of alcoholism on aspartate aminotransferase (AST) and alanine aminotransferase (ALT). It also inhibited the generation of 8-hydroxy-2-deoxyguanosine (8-OHdG), lowered the levels of malondialdehyde (MDA) and increased the activity of hepatic glutathione peroxidase (GSH-Px). The study indicates that jujube honey exerts potent antioxidant activity and significant protection in hepatic disorders associated with chronic alcoholism. The protective effect is attributed to its antioxidant mechanisms and inhibition of oxidative degradation of lipids.


Assuntos
Antioxidantes/administração & dosagem , Mel/análise , Hepatopatias Alcoólicas/prevenção & controle , Extratos Vegetais/administração & dosagem , Substâncias Protetoras/administração & dosagem , Ziziphus/química , Álcoois/efeitos adversos , Animais , Aspartato Aminotransferases/metabolismo , Glutationa Peroxidase/metabolismo , Humanos , Fígado/efeitos dos fármacos , Fígado/enzimologia , Fígado/lesões , Fígado/metabolismo , Hepatopatias Alcoólicas/tratamento farmacológico , Hepatopatias Alcoólicas/enzimologia , Hepatopatias Alcoólicas/metabolismo , Masculino , Malondialdeído/metabolismo , Camundongos
16.
Food Funct ; 5(4): 678-87, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24513924

RESUMO

The present study was undertaken to evaluate the hepatoprotective effect mechanisms of Nelumbo nucifera leaves extract (NLE) in experimental alcoholic steatohepatitis animal models. We found that the NLE contained polyphenols (phenolic acids and flavonoids), and more than 70% of the main functional components in NLE could potentially provide benefits for alcoholic liver disease. The parameters of histopathology, immunohistochemistry, antioxidant defense, proinflammatory mediator and lipid synthesis-related proteins demonstrated the inhibitory effect of NLE on alcoholic steatohepatitis. Plasma and hepatic content analysis showed that NLE inhibited lipid accumulation by altering the levels of triglycerides (TG) and cholesterol (TC). Treatment with NLE increased the expression of the p-AMPK/AMPK ratio and PPAR-α. Furthermore, fatty acid oxidation and transport via carnitine palmitoyltransferase-1 (CPT1) and microsomal triglyceride transfer protein (MTP) were through the activation of the AMPK and PPAR-α signal. These results revealed that the polyphenol-rich component of NLE prevents alcoholic steatohepatitis by multiple pathways, including reduced lipid synthesis, enhanced fatty acid oxidation and transport responses, inhibited oxidative stress and facilitated anti-inflammation. Suggesting that NLE might be regarded as a beneficial food that has the potential to be developed as a natural agent for preventing alcoholic steatohepatitis.


Assuntos
Anti-Inflamatórios/administração & dosagem , Fígado Gorduroso/tratamento farmacológico , Fígado Gorduroso/imunologia , Metabolismo dos Lipídeos/efeitos dos fármacos , Nelumbo/química , Extratos Vegetais/administração & dosagem , Polifenóis/administração & dosagem , Álcoois/efeitos adversos , Animais , Fígado Gorduroso/induzido quimicamente , Fígado Gorduroso/metabolismo , Humanos , Fígado/efeitos dos fármacos , Fígado/imunologia , Fígado/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Folhas de Planta/química
17.
Emerg Med Clin North Am ; 32(1): 103-25, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24275171

RESUMO

Toxins such as pharmaceuticals, herbals, foods, and supplements may lead to hepatic damage. This damage may range from nonspecific symptoms in the setting of liver test abnormalities to acute hepatic failure. The majority of severe cases of toxin-induced hepatic injury are caused by acetaminophen and ethanol. The most important step in the patient evaluation is to gather an extensive history that includes toxin exposure and exclude common causes of liver dysfunction. Patients whose hepatic dysfunction progresses to acute liver failure may benefit from transfer to a transplant service for further management. Currently, the mainstay in management for most exposures is discontinuing the offending agent. This manuscript will review the incidence, pathophysiology, diagnosis and management of the different forms of toxin-induced hepatic injury and exam in-depth the most common hepatic toxins.


Assuntos
Doença Hepática Induzida por Substâncias e Drogas/etiologia , Doença Hepática Induzida por Substâncias e Drogas/terapia , Acetaminofen/efeitos adversos , Álcoois/efeitos adversos , Amanita , Analgésicos não Narcóticos/efeitos adversos , Anticonvulsivantes/efeitos adversos , Doença Hepática Induzida por Substâncias e Drogas/diagnóstico , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/efeitos adversos , Intoxicação Alimentar por Cogumelos/terapia , Esteroides/efeitos adversos , Estados Unidos , Ácido Valproico/efeitos adversos
18.
Neurology ; 79(5): 428-34, 2012 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-22744670

RESUMO

OBJECTIVE: Idiopathic REM sleep behavior disorder is a parasomnia characterized by dream enactment and is commonly a prediagnostic sign of parkinsonism and dementia. Since risk factors have not been defined, we initiated a multicenter case-control study to assess environmental and lifestyle risk factors for REM sleep behavior disorder. METHODS: Cases were patients with idiopathic REM sleep behavior disorder who were free of dementia and parkinsonism, recruited from 13 International REM Sleep Behavior Disorder Study Group centers. Controls were matched according to age and sex. Potential environmental and lifestyle risk factors were assessed via standardized questionnaire. Unconditional logistic regression adjusting for age, sex, and center was conducted to investigate the environmental factors. RESULTS: A total of 694 participants (347 patients, 347 controls) were recruited. Among cases, mean age was 67.7 ± 9.6 years and 81.0% were male. Cases were more likely to smoke (ever smokers = 64.0% vs 55.5%, adjusted odds ratio [OR] = 1.43, p = 0.028). Caffeine and alcohol use were not different between cases and controls. Cases were more likely to report previous head injury (19.3% vs 12.7%, OR = 1.59, p = 0.037). Cases had fewer years of formal schooling (11.1 ± 4.4 years vs 12.7 ± 4.3, p < 0.001), and were more likely to report having worked as farmers (19.7% vs 12.5% OR = 1.67, p = 0.022) with borderline increase in welding (17.8% vs 12.1%, OR = 1.53, p = 0.063). Previous occupational pesticide exposure was more prevalent in cases than controls (11.8% vs 6.1%, OR = 2.16, p = 0.008). CONCLUSIONS: Smoking, head injury, pesticide exposure, and farming are potential risk factors for idiopathic REM sleep behavior disorder.


Assuntos
Meio Ambiente , Estilo de Vida , Transtorno do Comportamento do Sono REM/etiologia , Idoso , Álcoois/efeitos adversos , Estudos de Casos e Controles , Café/efeitos adversos , Intervalos de Confiança , Escolaridade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Ocupações , Razão de Chances , Polissonografia , Transtorno do Comportamento do Sono REM/diagnóstico , Fatores de Risco , Sensibilidade e Especificidade , Índice de Gravidade de Doença , Fumar , Inquéritos e Questionários , Chá/efeitos adversos
19.
Prog Mol Biol Transl Sci ; 98: 293-347, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21199775

RESUMO

Alcohol abuse and dependence are multifaceted disorders with neurobiological, psychological, and environmental components. Research on other complex neuropsychiatric diseases suggests that genetically influenced intermediate characteristics affect the risk for heavy alcohol consumption and its consequences. Diverse therapeutic interventions can be developed through identification of reliable biomarkers for this disorder and new pharmacological targets for its treatment. Advances in the fields of genomics and proteomics offer a number of possible targets for the development of new therapeutic approaches. This brain-focused review highlights studies identifying neurobiological systems associated with these targets and possible pharmacotherapies, summarizing evidence from clinically relevant animal and human studies, as well as sketching improvements and challenges facing the fields of proteomics and genomics. Concluding thoughts on using results from these profiling technologies for medication development are also presented.


Assuntos
Alcoolismo/tratamento farmacológico , Álcoois/efeitos adversos , Pesquisa sobre Serviços de Saúde , Pesquisa Translacional Biomédica , Animais , Biomarcadores/metabolismo , Avaliação Pré-Clínica de Medicamentos , Humanos
20.
J Ethnopharmacol ; 126(2): 273-9, 2009 Nov 12.
Artigo em Inglês | MEDLINE | ID: mdl-19703542

RESUMO

AIM OF THE STUDY: To investigate the hepatoprotective effect of Zhi-Zi-Da-Huang decoction (ZZDHD) and its two fractions (one is extracted with diethyl ether as a solvent from the water extract and is called ZD-DE for short, the other is the remained aqueous fraction after extracted with diethyl ether and is abbreviated as ZD-AQ) against acute alcohol-induced liver injury in rats. MATERIALS AND METHODS: Animals were administered orally with alcohol 6g/kg at 2h after the doses of ZZDHD and two fractions everyday for eight consecutive days except rats in normal group. The protective effect was evaluated by biochemical parameters including aspartate transaminase (AST), alanine transferase (ALT), reduced glutathione (GSH), malondialdehyde (MDA) and superoxide dismutase (SOD). The biochemical observations were supplemented by histopathological examination. HPLC-UV was used for phytochemical analysis of the ZZDHD and its two fractions. RESULTS: The high dose of ZZDHD exhibited a significant protective effect by reversing the biochemical parameters and histopathological changes. ZD-DE and ZD-AQ demonstrated different protective action in biochemical examination. Partly assayed indexes were ameliorated after administrated the media dose of ZZDHD. HPLC analysis indicated that ZZDHD contained flavonoids, anthraquinones and iridoids, which might be the active chemicals. CONCLUSIONS: This study demonstrated the hepatoprotective activity of ZZDHD thus scientifically supported the usage of this formula.


Assuntos
Álcoois/efeitos adversos , Antioxidantes/uso terapêutico , Doença Hepática Induzida por Substâncias e Drogas/prevenção & controle , Fígado/efeitos dos fármacos , Magnoliopsida/química , Extratos Vegetais/uso terapêutico , Substâncias Protetoras/uso terapêutico , Alanina Transaminase/sangue , Animais , Antraquinonas/análise , Antraquinonas/farmacologia , Antraquinonas/uso terapêutico , Antioxidantes/metabolismo , Antioxidantes/farmacologia , Aspartato Aminotransferases/sangue , Peso Corporal/efeitos dos fármacos , Doença Hepática Induzida por Substâncias e Drogas/metabolismo , Flavonoides/análise , Flavonoides/farmacologia , Flavonoides/uso terapêutico , Glutationa/metabolismo , Iridoides/análise , Iridoides/farmacologia , Iridoides/uso terapêutico , Fígado/patologia , Masculino , Malondialdeído/metabolismo , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Substâncias Protetoras/análise , Substâncias Protetoras/farmacologia , Ratos , Ratos Sprague-Dawley , Superóxido Dismutase/metabolismo
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