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1.
Pharm Biol ; 60(1): 255-273, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35148221

RESUMO

CONTEXT: Xinbao pill (XBW), a traditional Chinese herbal formula, is widely used in clinical treatment for cardiovascular diseases; however, the therapeutic effect of XBW on myocardial ischaemia-reperfusion injury (MI/RI) is unclear. OBJECTIVE: This study evaluates the cardioprotective effect and molecular mechanism of XBW against MI/RI. MATERIALS AND METHODS: A phytochemistry-based network pharmacology analysis was used to uncover the mechanism of XBW against MI/RI. Ultra performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry method was used to identify chemicals. MI/RI-related targets of XBW were predicted using TargetNet database, OMIC database, etc. Sprague-Dawley (SD) rats under anterior descending artery ligation model were divided into Sham, MI/RI and XBW (180 mg/kg, intragastric administration). After 30 min ischaemia and 24 h reperfusion, heart tissues were collected for measurement of myocardial infarct size. After oxygen glucose deprivation for 6 h, H9c2 cells were treated with XBW (60, 240 and 720 µg/mL) and diazoxide (100 µM) for 18 h of reperfusion. RESULTS: Thirty-seven chemicals were identified in XBW; 50 MI/RI-related targets of XBW were predicted using indicated databases. XBW significantly reduced infarct size and creatine kinase MB (CK-MB) level after MI/RI; XBW protected H9c2 cells against OGD/R injury. Gene ontology (GO) and KEGG pathway enrichment analyses by String database showed that the cardioprotective effect of XBW was associated with autophagy and apoptosis signalling pathways. Experimental investigation also verified that XBW suppressed apoptosis, autophagy and endoplasmic reticulum (ER) stress. CONCLUSIONS: XBW showed therapeutic effects against MI/RI mainly via attenuating apoptosis though suppressing excessive autophagy and ER stress.


Assuntos
Cardiotônicos/farmacologia , Medicamentos de Ervas Chinesas/farmacologia , Infarto do Miocárdio/prevenção & controle , Traumatismo por Reperfusão Miocárdica/tratamento farmacológico , Animais , Apoptose/efeitos dos fármacos , Autofagia/efeitos dos fármacos , Cardiotônicos/administração & dosagem , Linhagem Celular , Relação Dose-Resposta a Droga , Medicamentos de Ervas Chinesas/administração & dosagem , Estresse do Retículo Endoplasmático/efeitos dos fármacos , Masculino , Miócitos Cardíacos/efeitos dos fármacos , Miócitos Cardíacos/patologia , Farmacologia em Rede , Ratos , Ratos Sprague-Dawley
3.
J Ethnopharmacol ; 283: 114640, 2022 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-34606947

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Advancement in cancer therapy has improved survival among patients. However, use of anticancer drugs like anthracyclines (e.g., doxorubicin) is not without adverse effects. Notable among adverse effects of doxorubicin (DOX) is cardiotoxicity, which ranges from mild transient blood pressure changes to potentially serious heart failure. Anecdotal reports suggest that Kalanchoe integra (KI) may have cardio-protective potential. AIMS OF THE STUDY: This study sought to determine the cardio-protective potential of KI against doxorubicin-induced cardiotoxicity and also examined any possible genotoxic potential of KI in selected organs. Additionally, the nitric oxide modulatory potential of KI was assessed. MATERIALS AND METHODS: The leaves of KI were collected, air-dried, pulverised and extracted using 70% ethanol. High-performance liquid chromatography (HPLC) fingerprinting was done for KI. Also, the single-cell gel electrophoresis assay (Comet assay) was employed to ascertain the genotoxic potential of KI. In assessment of cardio-protective potential of KI against doxorubicin-induced cardiotoxicity, a total of 42 female Sprague-Dawley rats were put into 7 groups (n = 6). Group I: vehicle control, received normal saline (1 mL/kg p.o) for 30 days. Group II: toxic control, received DOX (20 mg/kg i.p.) once on the 29th day. Group III: KI control, received KI (300 mg/kg p.o) for 30 days. Group IV: vitamin E control, received vitamin E (100 mg/kg p.o) for 30 days. Group V: KI treated-1, received KI (300 mg/kg p.o) for 30 days and DOX (20 mg/kg i.p) on the 29th day. Group VI: KI treated-2, received KI (600 mg/kg p.o) for 30 days and DOX (20 mg/kg i.p) on the 29th day. Group VII: vitamin E treated, received vitamin E (100 mg/kg p.o) for 30 days and DOX (20 mg/kg i.p) on the 29th day. Thirty-six (36) hours after last administration, rats were sacrificed. Blood samples were taken via cardiac puncture to determine levels of aspartate aminotransferase (AST), alanine transaminase (ALT), alkaline phosphatase (ALP), creatine kinase (CK), lactate dehydrogenase (LDH), enzymatic antioxidants such as glutathione (GSH), superoxide dismutase (SOD), and catalase (CAT). Nitric oxide level was also determined. Hearts of rats in each group were excised and taken through histopathological examination. RESULTS: In the HPLC fingerprint analysis, 13 peaks were identified, and peak with retention time of 24.0 min had the highest peak area (3.223 x104 mAU). Comet assay showed that the KI extract was non-genotoxic. Pretreatment with KI protected rats against doxorubicin-induced cardiotoxicity as evidenced by the low levels of AST, ALT, ALP, CK and LDH compared with the controls (p < 0.05). SOD, CAT and GPX levels were also high for rats administered KI extracts, further showing that KI protected rats against doxorubicin-induced cardiotoxicity. KI also inhibited nitric oxide levels at 300 mg/kg and 600 mg/kg effective doses. Histological examination revealed that rats pretreated with KI showed no signs of abnormal myocardial fibres (shape, size and configuration). CONCLUSION: Ethanolic (70%) leaf extract of KI showed no genotoxic potential and possessed cardioprotective effects against doxorubicin-induced cardiotoxicity in Sprague-Dawley rats. KI also inhibited nitric oxide production, thus, a potential nitric oxide scavenger.


Assuntos
Cardiotoxicidade/prevenção & controle , Doxorrubicina/toxicidade , Kalanchoe/química , Extratos Vegetais/farmacologia , Animais , Antibióticos Antineoplásicos/toxicidade , Cardiotônicos/administração & dosagem , Cardiotônicos/isolamento & purificação , Cardiotônicos/farmacologia , Cardiotoxicidade/etiologia , Dano ao DNA/efeitos dos fármacos , Relação Dose-Resposta a Droga , Feminino , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Óxido Nítrico/metabolismo , Extratos Vegetais/administração & dosagem , Folhas de Planta , Ratos , Ratos Sprague-Dawley , Vitamina E/farmacologia
4.
J Ethnopharmacol ; 284: 114728, 2022 Feb 10.
Artigo em Inglês | MEDLINE | ID: mdl-34634367

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Solanum nigrum, commonly known as Makoi or black shade has been traditionally used in Asian countries and other regions of world to treat liver disorders, diarrhoea, inflammatory conditions, chronic skin ailments (psoriasis and ringworm), fever, hydrophobia, painful periods, eye diseases, etc. It has been observed that S. nigrum contains substances, like steroidal saponins, total alkaloid, steroid alkaloid, and glycoprotein, which show anti-tumor activity. However; there is no scientific evidence of the efficacy of S. nigrum in the treatment of cardiac hypertrophy. AIM: To investigate the ability of S. nigrum to attenuate Angiotensin II - induced cardiac hypertrophy and improve cardiac function through the suppression of protein kinase PKC-ζ and Mel-18-IGF-IIR signaling leading to the restoration of HSF2 desumolyation. MATERIALS AND METHODS: Cardiomyoblast cells (H9c2) were challenged with 100 nM Angiotensin-II (AngII) for 24 h and were then treated with different concentration of S.nigrum or Calphostin C for 24 h. The hypertrophic effect in cardiomyoblast cells were determined by immunofluorescence staining and the modulations in hypertrophic protein marker along with Protein Kinase C-ζ, MEL18, HSF2, and Insulin like growth factor II (IGFIIR), markers were analyzed by western blotting. In vivo experiments were performed using 12 week old male Wistar Kyoto rats (WKY) and Spontaneously hypertensive rats (SHR) separated into five groups. [1]Control WKY, [2] WKY -100 mg/kg of S.nigrum treatment, [3] SHR, [4] SHR-100 mg/kg of S.nigrum treatment, [5] SHR-300 mg/kg of S.nigrum treatment. S. nigrum was administered intraperitoneally for 8 week time interval. RESULTS: Western blotting results indicate that S. nigrum significantly attenuates AngII induced cardiac hypertrophy. Furthermore, actin staining confirmed the ability of S. nigrum to ameliorate AngII induced cardiac hypertrophy. Moreover, S. nigrum administration suppressed the hypertrophic signaling mediators like Protein Kinase C-ζ, Mel-18, and IGFIIR in a dose-dependent manner and HSF2 activation (restore deSUMOlyation) that leads to downregulation of IGF-IIR expression. Additionally in vivo experiments demonstrate the reduced heart sizes of S. nigrum treated SHRs rats when compared to control WKY rats. CONCLUSION: Collectively, the data reveals the cardioprotective effect of S. nigrum inhibiting PKC-ζ with alleviated IGF IIR level in the heart that profoundly remits cardiac hypertrophy for hypertension-induced heart failure.


Assuntos
Cardiomegalia/tratamento farmacológico , Cardiotônicos/farmacologia , Extratos Vegetais/farmacologia , Solanum nigrum/química , Angiotensina II , Animais , Cardiotônicos/administração & dosagem , Cardiotônicos/isolamento & purificação , Linhagem Celular , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Proteínas de Choque Térmico/metabolismo , Hipertensão/tratamento farmacológico , Masculino , Mioblastos Cardíacos/efeitos dos fármacos , Mioblastos Cardíacos/patologia , Extratos Vegetais/administração & dosagem , Proteína Quinase C/metabolismo , Ratos , Ratos Endogâmicos SHR , Ratos Endogâmicos WKY , Receptor IGF Tipo 2/metabolismo , Fatores de Transcrição/metabolismo
5.
Pharm Biol ; 59(1): 1191-1202, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34493157

RESUMO

CONTEXT: Huoxin pill (HXP) is a commonly used TCM prescription for treatment of cardiovascular diseases. However, its mechanism in protecting against myocardial infarction (MI) remains unknown. OBJECTIVE: We performed a network pharmacology analysis to explore the bioactive ingredients, therapeutic effects, and mechanisms of HXP in protecting against MI. MATERIALS AND METHODS: HPLC was used to identify major bioactive compounds, and overlap with MI target genes were visualised. 10-Week old C57BL/6 mice were randomly assigned as: Sham-operated control, MI + Phosphate buffered saline (PBS), and MI + HXP (3 mg/mL and 9 mg/mL) treatment groups, received oral gavage administration once every two-days starting from 1-week prior to MI, and subsequently MI models were established for one-week before sacrifice. RESULTS: AKT1, VEGFA, TNF and RELA were identified as core target proteins among eighty-five candidate bioactive compounds identified in HXP with overlapping MI-related genes. HXP protection against MI was mainly via regulation of inflammatory pathways, notably TNF signalling pathway. Mouse models of MI and cardiac myoblasts demonstrated that HXP improved MI-induced injury via improving regulation of inflammatory response. DISCUSSION AND CONCLUSION: Stellasterol, deoxycholic acid, kaempferol, and quercetin are important active compounds contained in HXP with anti-inflammatory properties in the therapeutic treatment of MI. Due to the straightforward nature and effectiveness of taking oral HXP medications, our findings provide a theoretical basis for the clinical application of HXP in treating patients with angina or myocardial ischaemia. Future research into the combination of surgical procedures or medications that restore blood flow together with HXP as supportive medication would be worthwhile.


Assuntos
Anti-Inflamatórios/farmacologia , Medicamentos de Ervas Chinesas/farmacologia , Infarto do Miocárdio/prevenção & controle , Animais , Anti-Inflamatórios/administração & dosagem , Anti-Inflamatórios/química , Cardiotônicos/administração & dosagem , Cardiotônicos/química , Cardiotônicos/farmacologia , Cromatografia Líquida de Alta Pressão , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Medicamentos de Ervas Chinesas/administração & dosagem , Medicamentos de Ervas Chinesas/química , Camundongos , Camundongos Endogâmicos C57BL , Farmacologia em Rede , Transdução de Sinais/efeitos dos fármacos
6.
Toxicol Appl Pharmacol ; 427: 115652, 2021 09 15.
Artigo em Inglês | MEDLINE | ID: mdl-34298059

RESUMO

Exposure to phosphine (PH3) presents with a host of diverse, non-specific symptoms that span multiple organ systems and is characterized by a high mortality rate. While a comprehensive mechanism for PH3 poisoning remains inconclusive, prior studies have implicated cardiac failure and circulatory compromise as potential pathways central to PH3-induced mortality. In this study, milrinone (MLR), a phosphodiesterase-3 inhibitor used to treat cardiac failure, was investigated as a potential countermeasure for PH3 poisoning. Lethality, physiological responses, and behavioral changes were evaluated in telemetrized female rats pretreated with water (sham) or one of three doses of MLR (40, 200, or 600 µg/kg) and exposed to PH3 (660 ppm for 25-40 min; 16,500-26,400 ppm × min). Animals receiving prophylactic administration of 600 µg/kg of MLR had nominally improved survivability compared to sham animals, although median lethal concentration-time and time of death did not differ substantially between treatment groups. Changes in respiration and behavior induced by PH3 appeared largely unaffected by MLR pretreatment, regardless of dose. Conversely, MLR pretreatment alleviated some aspects of PH3-induced cardiac function impairment, with slight dose-dependent effects observed for cardiac contractility, mean arterial pressure, and QRS duration. Together, these results illustrate the importance of circulatory compromise in PH3 poisoning and highlight the potential viability of MLR as a potential countermeasure option or part of a countermeasure regimen when administered prophylactically at 600 µg/kg.


Assuntos
Débito Cardíaco/efeitos dos fármacos , Cardiotônicos/administração & dosagem , Inseticidas/intoxicação , Milrinona/administração & dosagem , Fosfinas/intoxicação , Mecânica Respiratória/efeitos dos fármacos , Animais , Débito Cardíaco/fisiologia , Relação Dose-Resposta a Droga , Avaliação Pré-Clínica de Medicamentos/métodos , Feminino , Exposição por Inalação/efeitos adversos , Dose Letal Mediana , Profilaxia Pré-Exposição/métodos , Ratos , Ratos Sprague-Dawley , Mecânica Respiratória/fisiologia , Taxa de Sobrevida/tendências
7.
Phytomedicine ; 88: 153597, 2021 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-34111614

RESUMO

BACKGROUND: Doxorubicin (DOX) is a widely used antitumor drug. However, its clinical application is limited for its serious cardiotoxicity. The mechanism of DOX-induced cardiotoxicity is attributed to the increasing of cell stress in cardiomyocytes, then following autophagic and apoptotic responses. Our previous studies have demonstrated the protective effect of Shenmai injection (SMI) on DOX-induced cardiotoxicity via regulation of inflammatory mediators for releasing cell stress. PURPOSE: To further investigate whether SMI attenuates the DOX-induced cell stress in cardiomyocytes, we explored the mechanism underlying cell stress as related to Jun N-terminal kinase (JNK) activity and the regulation of autophagic flux to determine the mechanism by which SMI antagonizes DOX-induced cardiotoxicity. STUDY DESIGN: The DOX-induced cardiotoxicity model of autophagic cell death was established in vitro to disclose the protected effects of SMI on oxidative stress, autophagic flux and JNK signaling pathway. Then the autophagic mechanism of SMI antagonizing DOX cardiotoxicity was validated in vivo. RESULTS: SMI was able to reduce the DOX-induced cardiomyocyte apoptosis associated with inhibition of activation of the JNK pathway and the accumulation of reactive oxygen species (ROS). Besides, SMI antagonized DOX cardiotoxicity, regulated cardiomyocytes homeostasis by restoring DOX-induced cardiomyocytes autophagy. Under specific circumstances, SMI depressed autophagic process by reducing the Beclin 1-Bcl-2 complex dissociation which was activated by DOX via stimulating the JNK signaling pathway. At the same time, SMI regulated lysosomal pH to restore the autophagic flux which was blocked by DOX in cardiomyocytes. CONCLUSION: SMI regulates cardiomyocytes apoptosis and autophagy by controlling JNK signaling pathway, blocking DOX-induced apoptotic pathway and autophagy formation. SMI was also found to play a key role in restoring autophagic flux for counteracting DOX-damaged cardiomyocyte homeostasis.


Assuntos
Cardiotônicos/farmacologia , Cardiotoxicidade/tratamento farmacológico , Doxorrubicina/efeitos adversos , Medicamentos de Ervas Chinesas/farmacologia , Animais , Antibióticos Antineoplásicos/efeitos adversos , Apoptose/efeitos dos fármacos , Autofagia/efeitos dos fármacos , Proteína Beclina-1/metabolismo , Cardiotônicos/administração & dosagem , Cardiotoxicidade/metabolismo , Linhagem Celular , Combinação de Medicamentos , Medicamentos de Ervas Chinesas/administração & dosagem , Humanos , Injeções , Proteínas Quinases JNK Ativadas por Mitógeno/metabolismo , Masculino , Miócitos Cardíacos/efeitos dos fármacos , Miócitos Cardíacos/metabolismo , Miócitos Cardíacos/patologia , Estresse Oxidativo/efeitos dos fármacos , Ratos Sprague-Dawley , Espécies Reativas de Oxigênio/metabolismo
8.
Int J Mol Sci ; 22(9)2021 Apr 28.
Artigo em Inglês | MEDLINE | ID: mdl-33925062

RESUMO

Cardiovascular disease is a leading cause of death globally, presenting an immense public and economic burden. Studies on cardioprotective foods and their bioactive components are needed to address both personal and public health needs. Date fruit is rich in polyphenols, particularly flavonoids, certain micronutrients, and dietary fiber, which can impact vascular health, and have the potential to attenuate vascular disease in humans. Data from in vitro and animal studies report that consumption of date fruit or extracts can modulate select markers of vascular health, particularly plasma lipid levels including triglycerides and cholesterol, indices of oxidative stress and inflammation, but human data is scant. More investigation is needed to better characterize date polyphenols and unique bioactive compounds or fractions, establish safe and effective levels of intake, and delineate underlying mechanisms of action. Implementing scientific rigor in clinical trials and assessment of functional markers of vascular disease, such as flow-mediated dilation and peripheral arterial tonometry, along with gut microbiome profiles would provide useful information with respect to human health. Emerging data supports the notion that intake of date fruit and extracts can be a useful component of a healthy lifestyle for those seeking beneficial effects on vascular health.


Assuntos
Doenças Cardiovasculares/prevenção & controle , Dieta Saudável , Frutas , Phoeniceae , Animais , Cardiotônicos/administração & dosagem , Cardiotônicos/química , Doenças Cardiovasculares/sangue , Feminino , Frutas/química , Humanos , Lipídeos/sangue , Masculino , Phoeniceae/química , Extratos Vegetais/administração & dosagem , Polifenóis/administração & dosagem
9.
Food Funct ; 12(8): 3657-3671, 2021 Apr 21.
Artigo em Inglês | MEDLINE | ID: mdl-33900312

RESUMO

Atherosclerosis, an inflammatory disorder of the vasculature and the underlying cause of cardiovascular disease, is responsible for one in three global deaths. Consumption of active food ingredients such as omega-3 polyunsaturated fatty acids, flavanols and phytosterols has many beneficial effects on cardiovascular disease. However, their combined actions on the risk factors for atherosclerosis remains poorly understood. We have previously shown that a formulation containing each of these active components at physiologically relevant doses modulated several monocyte/macrophage processes associated with atherosclerosis in vitro, including inhibition of cytokine-induced pro-inflammatory gene expression, chemokine-driven monocyte migration, expression of M1 phenotype markers, and promotion of cholesterol efflux. The objectives of the present study were to investigate whether the protective actions of the formulation extended in vivo and to delineate the potential underlying mechanisms. The formulation produced several favourable changes, including higher plasma levels of HDL and reduced levels of macrophages and myeloid-derived suppressor cells in the bone marrow. The mRNA expression of liver-X-receptor-α, peroxisome proliferator-activated receptor-γ and superoxide dismutase-1 was induced in the liver and that of interferon-γ and the chemokine (C-X-C motif) ligand 1 decreased, thereby suggesting the potential mechanisms for many beneficial effects. Other changes were also observed such as increased plasma levels of triglycerides and lipid peroxidation that may reflect potential activation of brown fat. This study provides new insights into the protective actions and the potential underlying mechanisms of the formulation in vivo, particularly in relation to risk factors together with changes in systemic inflammation and hepatic lipid alterations associated with atherosclerosis and metabolic syndrome, and supports further assessments in human trials.


Assuntos
Cardiotônicos/farmacologia , Doença da Artéria Coronariana/prevenção & controle , Animais , Cardiotônicos/administração & dosagem , Dieta Hiperlipídica , Modelos Animais de Doenças , Ácidos Graxos Ômega-3/administração & dosagem , Flavanonas/administração & dosagem , Alimento Funcional , Expressão Gênica , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Fitosteróis/administração & dosagem , Fatores de Risco
10.
Food Funct ; 12(7): 3069-3082, 2021 Apr 07.
Artigo em Inglês | MEDLINE | ID: mdl-33720242

RESUMO

The reduction in estrogen levels is associated with the increased risk factors for cardiovascular disease development. The present study aimed to evaluate the effect of chia consumption in a standard diet (SD) or high fat diet (HFD) on ovariectomized (OVX) and non-ovariectomized (SHAM) rats, in relation to biometric measurements, oxidative stress, mineral content and ATPase enzymes in the heart. The study was conducted with 80 female Wistar rats, which received a SD or HFD for 18 weeks. During the first 7 weeks, the animals received the SD or HFD. Then, 40 rats were ovariectomized and 40 rats were SHAM operated. After recovery from surgery, the animals were allocated to 8 groups (n = 10) and they received one of the following diets for 8 weeks: SD, SD + chia, HFD and HFD + chia. In the OVX group, HFD increased weight gain, adiposity, cardiac hypertrophy, and nitric oxide (NO) and K concentration and decreased the Na+/K+ATPase activity. In combination with HFD, ovariectomy decreased the catalase activity, Mg, Cu and Zn concentration, total ATPase activity, and Na+/K+ATPase and Mg2 + ATPase activities; this group also presented higher NO, Ca, K, Fe and Mn concentration in the heart. The SHAM group fed chia presented a lower fat content in the heart. In the OVX group fed HFD, chia increased the activity of superoxide dismutase, decreased NO and maintained the content of minerals and ATPase enzymes. Thus, chia improved the biometric parameters of the heart, the antioxidant activity and maintained the content of minerals and ATPase enzymes, showing a cardioprotective action, but without reversing the deleterious effects of ovariectomy.


Assuntos
Cardiotônicos/uso terapêutico , Doenças Cardiovasculares/prevenção & controle , Extratos Vegetais/uso terapêutico , Salvia , Animais , Cardiotônicos/administração & dosagem , Cardiotônicos/farmacologia , Dieta Hiperlipídica , Modelos Animais de Doenças , Feminino , Obesidade , Ovariectomia , Extratos Vegetais/administração & dosagem , Extratos Vegetais/farmacologia , Ratos , Ratos Wistar
11.
Pharm Biol ; 59(1): 106-113, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33535854

RESUMO

CONTEXT: Panax ginseng C.A. Meyer (Araliaceae) has cardioprotective effects. Ginsenosides are responsible for most of the pharmacological activities of ginseng. OBJECTIVE: This study investigates the effect of ginsenoside Rg2 on myocardial fibrosis in myocardial ischaemia rats. MATERIALS AND METHODS: Male Wistar rats were divided into control, isoproterenol, ginsenoside Rg2 (5, 20 mg/kg) groups (n = 8). The rats were subcutaneously injected with isoproterenol (5 mg/kg) or normal saline (control group) once daily for 7 days. The animals were intragastrically treated with ginsenoside Rg2 or 0.5% CMC-Na (control and isoproterenol groups) daily for 28 days. At day 28, cardiac function, myocardial fibrosis, and TGF-ß1/Smad signalling pathway were evaluated. RESULTS: Compared with myocardial ischaemic rats, ginsenoside Rg2 at doses of 5, 20 mg/kg abated partially the augment of LVEDP (8.9 ± 1.3 vs. 7.5 ± 0.7, 7.2 ± 1.0 mmHg) and the decreases of the LVSP (96.75 ± 13.2 vs. 118.3 ± 19.4, 124.3 ± 21.3 mmHg), the + dp/dt (2142.8 ± 309.3 vs. 2598.6 ± 404.0, 2661.5 ± 445.2 mmHg/s), and the -dp/dt (1996.3 ± 306.3 vs. 2476.6 ± 289.7, 2509.6 ± 353.1 mmHg/s). Ginsenoside Rg2 (9.2 ± 0.9%, 8.5 ± 0.8%) alleviated myocardial fibrosis when compared with the isoproterenol group (10.1 ± 1.0%), which was accompanied by suppressed TGF-ß1/Smad signalling in heart tissues. CONCLUSIONS: Ginsenosides from ginseng possess the property of alleviating myocardial fibrosis, improving cardiac function after myocardial ischaemia. Ginsenosides may be promising agents for improving the outcomes of patients with myocardial ischaemia.


Assuntos
Cardiotônicos/farmacologia , Ginsenosídeos/farmacologia , Isquemia Miocárdica/tratamento farmacológico , Panax/química , Animais , Cardiotônicos/administração & dosagem , Cardiotônicos/isolamento & purificação , Relação Dose-Resposta a Droga , Fibrose/tratamento farmacológico , Fibrose/patologia , Ginsenosídeos/administração & dosagem , Ginsenosídeos/isolamento & purificação , Isoproterenol/farmacologia , Masculino , Isquemia Miocárdica/fisiopatologia , Ratos , Ratos Wistar , Transdução de Sinais/efeitos dos fármacos , Proteínas Smad/metabolismo , Fator de Crescimento Transformador beta1/metabolismo
12.
J Tradit Chin Med ; 41(1): 140-149, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33522207

RESUMO

OBJECTIVE: To investigate the relationship between the cardiotonic activity of Fuzi (Radix Aconiti Lateralis Preparata, RALP) and its fingerprint determined by liquid chromatography-mass spectrometry (LC-MS). METHODS: First, the fingerprints of six processed products of RALP were established by high performance liquid chromatography quadrupole time-of-flight mass spectrometry (HPLC-Q-TOF-MS) followed by analysis of the principal component of the relative peak area of its common peaks. Next, the scores of the first five principal components were used as input for an artificial neural network (ANN). Additionally, the therapeutic effect of RALP was assessed by measuring the hemodynamic indexes of heart failure model rats. Subsequently, fluorescence semi-quantitative polymerase chain reaction and an enzyme-linked immunosorbent assay kit were used to determine the effects of RALP-processed products on the serum levels of noradrenaline (NA), angiotensin-Ⅰ (Ang-Ⅰ), and the expression of ß-norepinephrine receptor mRNA (ß-NRm) in the rat cardiac tissues. P < 0.05 was used as the output of the ANN. Finally, a network was constructed to display the relationship between the LC-MS fingerprints and the cardiotonic activity of the RALP-processed products. RESULTS: Several types of RALPs can improve diastolic function, systolic function and heart rate. On the basis of the findings from the principal component analysis (PCA) of 16 common peaks of fingerprints of six RALP-processed products, it was revealed that the first five principal components may include 100% of the information of the original data. As observed from the multilayer perceptron neural network analysis, principal component 4 presented with the strongest effects on serum levels of NA and Ang-Ⅰ in rats, while principal component 1 exerted the greatest effect on ß-NRm expression in cardiac tissue. CONCLUSION: The key findings obtained from this study indicated that the network constructed by the PCA-ANN may predict pharmacodynamic effects of the main ingredients of Traditional Chinese Medicine (TCM). This method may serve as a new approach to identify the relationship between LC-MS fingerprints and the pharmacodynamic effects of TCM ingredients.


Assuntos
Aconitum/química , Cardiotônicos/química , Medicamentos de Ervas Chinesas/química , Insuficiência Cardíaca/tratamento farmacológico , Angiotensinogênio/genética , Angiotensinogênio/metabolismo , Animais , Cardiotônicos/administração & dosagem , Cromatografia Líquida de Alta Pressão , Medicamentos de Ervas Chinesas/administração & dosagem , Insuficiência Cardíaca/genética , Insuficiência Cardíaca/metabolismo , Humanos , Masculino , Espectrometria de Massas , Norepinefrina/genética , Norepinefrina/metabolismo , Ratos , Ratos Sprague-Dawley , Receptores Adrenérgicos/genética , Receptores Adrenérgicos/metabolismo
13.
Mar Drugs ; 19(2)2021 Jan 23.
Artigo em Inglês | MEDLINE | ID: mdl-33498729

RESUMO

Several cardioprotective mechanisms attributed to Omega-3 polyunsaturated fatty acids (PUFAs) have been studied and widely documented. However, in recent years, studies have supported the concept that the intestinal microbiota can play a much larger role than we had anticipated. Microbiota could contribute to several pathologies, including cardiovascular diseases. Indeed, an imbalance in the microbiota has often been reported in patients with cardiovascular disease and produces low-level inflammation. This inflammation contributes to, more or less, long-term development of cardiovascular diseases. It can also worsen the symptoms and the consequences of these pathologies. According to some studies, omega-3 PUFAs in the diet could restore this imbalance and mitigate its harmful effects on cardiovascular diseases. Many mechanisms are involved and included: (1) a reduction of bacteria producing trimethylamine (TMA); (2) an increase in bacteria producing butyrate, which has anti-inflammatory properties; and (3) a decrease in the production of pro-inflammatory cytokines. Additionally, omega-3 PUFAs would help maintain better integrity in the intestinal barrier, thereby preventing the translocation of intestinal contents into circulation. This review will summarize the effects of omega-3 PUFAs on gut micro-biota and the potential impact on cardiac health.


Assuntos
Cardiotônicos/administração & dosagem , Doenças Cardiovasculares/dietoterapia , Ácidos Graxos Ômega-3/administração & dosagem , Microbioma Gastrointestinal/efeitos dos fármacos , Animais , Cardiotônicos/metabolismo , Doenças Cardiovasculares/metabolismo , Dieta Saudável/métodos , Dieta Saudável/tendências , Disbiose/dietoterapia , Disbiose/metabolismo , Ácidos Graxos Ômega-3/metabolismo , Ácidos Graxos Ômega-6/administração & dosagem , Ácidos Graxos Ômega-6/efeitos adversos , Microbioma Gastrointestinal/fisiologia , Humanos
14.
Chem Phys Lipids ; 235: 105057, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33515592

RESUMO

A close link between cardiovascular diseases and cancer results from sharing the same modifiable risk factors (e.g. nutritional) and cardiotoxicity of anti-cancerous therapies. It justifies cardio-oncological preliminary studies on dietary factors, especially on those of possible anti-carcinogenic or cardioprotective properties. The main purpose was to evaluate the effect of pomegranate seed oil (PSO) and/or bitter melon extract (BME) supplementation of the diet of female rats suffering from mammary tumors on lipidomic profile (expressed as fatty acids, conjugated fatty acids (CFA), malondialdehyde (MDA), cholesterol and oxysterols content) of cardiac tissue. Total lipidomic profile and intensity of lipid peroxidation in hearts of DMBA-treated Sprague-Dawley rats and their healthy equivalents, both obtaining diet supplementation, were evaluated with different chromatographic techniques coupled with appropriate detection systems (GC-MS, GC-TOFMS, Ag+-HPLC-DAD, UF-HPLC-DAD). Dietary modifications neither diminished breast cancer incidence nor exerted explicit cardio-protective influence, however, they diminished cholesterol content, i.a. because of inhibition of the endogenous conversion of squalene to cholesterol in cardiac tissue. CFA were incorporated into cardiac tissue to a lesser extent in the cancerous process. PSO and BME anti-oxidant properties in pathological condition were only slightly reflected in MDA levels but not in oxysterols formation. Obtained results indicate considerable changes in dietary supplements' biological activity in pathological conditions and the need for clear distinction of drugs and dietary supplements, which is of utmost importance, especially for cancer survivors.


Assuntos
Anticarcinógenos/farmacologia , Neoplasias da Mama/tratamento farmacológico , Cardiotônicos/farmacologia , Doenças Cardiovasculares/tratamento farmacológico , Oxisteróis/metabolismo , Extratos Vegetais/farmacologia , Óleos de Plantas/farmacologia , Animais , Anticarcinógenos/administração & dosagem , Anticarcinógenos/química , Neoplasias da Mama/metabolismo , Cardiotônicos/administração & dosagem , Cardiotônicos/química , Doenças Cardiovasculares/metabolismo , Suplementos Nutricionais , Modelos Animais de Doenças , Feminino , Peroxidação de Lipídeos/efeitos dos fármacos , Lipidômica , Momordica charantia/química , Miocárdio/metabolismo , Extratos Vegetais/administração & dosagem , Extratos Vegetais/química , Óleos de Plantas/administração & dosagem , Óleos de Plantas/química , Punica granatum/química , Ratos , Ratos Sprague-Dawley
15.
Curr Pharm Biotechnol ; 22(3): 367-379, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-31696816

RESUMO

BACKGROUND: Oleaster or Elaeagnus angustifolia is a deciduous plant from Elaegnacea family and is well-known for its remedial applications. OBJECTIVE: This paper presents a comprehensive review of the potential application of Oleaster's flour incorporated in some food products. Emphasis is given to the physicochemical, biochemical, and functional properties of Oleaster's flour. METHODS: A comprehensive search was carried out to find publications on Oleaster's flour and its application as a prebiotic. The results of the related studies were extracted and summarized in this paper. RESULTS: Oleaster's flour as a prebiotic ingredient enhances antioxidants, polyphenols, fiber, flavonoids, Sterols, carbohydrates, and protein content of food products. CONCLUSION: Further advanced investigations on Oleaster and its functional ingredients revealed that these are efficacious and can be applied as a substitute source in pharmacological industries for medical applications.


Assuntos
Elaeagnaceae , Etnobotânica/métodos , Farinha/análise , Extratos Vegetais/análise , Prebióticos/análise , Animais , Anti-Inflamatórios/administração & dosagem , Anti-Inflamatórios/análise , Anti-Inflamatórios/química , Antioxidantes/administração & dosagem , Antioxidantes/análise , Antioxidantes/química , Cardiotônicos/administração & dosagem , Cardiotônicos/análise , Cardiotônicos/química , Elaeagnaceae/química , Flavonoides/administração & dosagem , Flavonoides/análise , Flavonoides/química , Humanos , Extratos Vegetais/administração & dosagem , Extratos Vegetais/química , Polifenóis/administração & dosagem , Polifenóis/análise , Polifenóis/química , Prebióticos/administração & dosagem
16.
Nutrients ; 12(12)2020 Dec 10.
Artigo em Inglês | MEDLINE | ID: mdl-33322022

RESUMO

Multiple sclerosis (MS) is a neurodegenerative disease that causes anthropometric changes characterised by functional disability, increase in fat mass, and decrease in lean mass. All these variables are related to a greater cardiac risk. The polyphenol epigallocatechin gallate (EGCG) and an increase in ketone bodies in the blood have been shown to have beneficial effects on anthropometric and biochemical variables related to cardiovascular activity. The aim of this study was to analyse the impact of the intervention with EGCG and ketone bodies on cardiac risk in MS patients. A population of 51 MS patients were randomly assigned to a control group and an intervention group (daily dose of 800 mg of EGCG and 60 mL of coconut oil). Both groups followed an isocaloric diet for 4 months. Levels of beta-hydroxybutyrate (BHB), albumin, paraoxonase 1 (PON1) and C-reactive protein (CRP) were measured in serum before and after the intervention, as well as determining functional ability, waist circumference, waist-to-hip ratio (WHR), waist-to-height ratio (WHtR), fat percentage and muscle percentage. After 4 months, in the intervention group there was a significant increase in BHB, PON1 and albumin, while CRP did not vary; a significant decrease in cardiac risk associated with a significant decline in WHR; as well as a significant increase in muscle percentage. By contrast, these changes were not observed in the control group. Finally, results from analysis of variance (ANOVA) revealed a significant time-condition interaction effect, observing that WHtR and fat mass decreased in the intervention group, while they increased in the control group.


Assuntos
Cardiotônicos/administração & dosagem , Doenças Cardiovasculares/prevenção & controle , Catequina/análogos & derivados , Suplementos Nutricionais , Corpos Cetônicos/sangue , Esclerose Múltipla/terapia , Ácido 3-Hidroxibutírico/sangue , Adulto , Análise de Variância , Antropometria , Arildialquilfosfatase/sangue , Índice de Massa Corporal , Proteína C-Reativa/análise , Doenças Cardiovasculares/etiologia , Catequina/administração & dosagem , Feminino , Fatores de Risco de Doenças Cardíacas , Humanos , Masculino , Pessoa de Meia-Idade , Esclerose Múltipla/sangue , Esclerose Múltipla/complicações , Projetos Piloto , Albumina Sérica/análise , Resultado do Tratamento , Razão Cintura-Estatura
18.
Pharm Biol ; 58(1): 1006-1022, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32985308

RESUMO

CONTEXT: Naoxintong Capsule (NXT), a Chinese medicine, has been widely used for the treatment of coronary heart disease (CHD) in clinics. OBJECTIVE: This study evaluated the cardioprotective effects of NXT alone and in combination with ticagrelor (TIC) and atorvastatin (ATO). MATERIALS AND METHODS: Qi deficiency and blood stasis rats were established by 8 weeks high fat diet feeding and 16 days exhaustive swimming and randomly divided into seven groups, that is, NXT (250, 500 and 1000 mg/kg/d), TIC (20 mg/kg/d), ATO (8 mg/kg/d), NXT (500 mg/kg/d)+TIC (20 mg/kg/d) and NXT (500 mg/kg/d)+ATO (8 mg/kg/d) group, with oral administration for 12 weeks. The contents of TC, TG, LDL-C, HDL-C, IL-1ß, IL-6, IL-8, TNF-α, AST, ALT, SOD, MDA, CK-MB, LDH, TXA2, PGI2, IgA, IgG, IgM and C3 in serum were measured. RESULTS: NXT + TIC group was significantly superior to the TIC group in decreasing the levels of TC (4.34 vs. 5.54), TG (3.37 vs. 4.66), LDL-C (1.21 vs. 1.35), LDH (4919.71vs. 5367.19) and elevating SOD level (248.54 vs. 192.04). NXT + ATO group was significantly superior to the ATO group in decreasing the levels of AST (195.931 vs. 241.63), ALT (71.26 vs. 83.16), LDH (4690.05 vs. 5285.82), TXA2 (133.73 vs. 158.67), IgG (8.08 vs. 9.80), C3 (2.03 vs. 2.35) and elevating the levels of HDL-C (1.19 vs. 0.91), SOD (241.91vs. 209.49). CONCLUSIONS: The present findings demonstrate that the combined use of NXT with TIC and ATO had better integrated regulating effects than TIC and ATO, respectively. The mechanism of action requires further research.


Assuntos
Atorvastatina/farmacologia , Cardiotônicos/farmacologia , Medicamentos de Ervas Chinesas/farmacologia , Ticagrelor/farmacologia , Animais , Atorvastatina/administração & dosagem , Cardiotônicos/administração & dosagem , Doença das Coronárias/prevenção & controle , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Quimioterapia Combinada , Medicamentos de Ervas Chinesas/administração & dosagem , Masculino , Qi , Ratos , Ratos Sprague-Dawley , Ticagrelor/administração & dosagem
19.
Nutrients ; 12(7)2020 Jul 10.
Artigo em Inglês | MEDLINE | ID: mdl-32664390

RESUMO

Cardiovascular disease (CVD) is globally known as the number one cause of death with hyperlipidemia as a strong risk factor for CVD. The initiation of drug treatment will be recommended if lifestyle modification fails. However, medicines currently used for improving cholesterol and low-density lipoprotein cholesterols (LDL-C) levels have been associated with various side effects. Thus, alternative treatment with fewer or no side effects needs to be explored. A potential agent, oil palm phenolics (OPP) recovered from the aqueous waste of oil palm milling process contains numerous water-soluble phenolic compounds. It has been postulated that OPP has shown cardioprotective effects via several mechanisms such as cholesterol biosynthesis pathway, antioxidant and anti-inflammatory properties. This review aims to summarize the current evidence explicating the actions of OPP in cardiovascular health and the mechanisms that maybe involved for the cardioprotective effects.


Assuntos
Cardiotônicos/administração & dosagem , Doenças Cardiovasculares/prevenção & controle , Óleo de Palmeira/administração & dosagem , Fenóis/administração & dosagem , Animais , Antioxidantes/administração & dosagem , Antioxidantes/farmacologia , Arecaceae/química , Cardiotônicos/farmacologia , Doenças Cardiovasculares/tratamento farmacológico , Doenças Cardiovasculares/metabolismo , Humanos , Hiperlipidemias/epidemiologia , Óleo de Palmeira/farmacologia , Fenóis/farmacologia , Espécies Reativas de Oxigênio
20.
J Ethnopharmacol ; 262: 113161, 2020 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-32730882

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Thrombolytic therapy with tissue plasminogen activator (tPA) after ischemic stroke exacerbates blood-brain barrier (BBB) breakdown and leads to hemorrhagic transformation (HT). YiQiFuMai Lyophilized Injection (YQFM) is a modern preparation derived from Sheng-mai San (a traditional Chinese medicine). YQFM attenuates the BBB dysfunction induced by cerebral ischemia-reperfusion injury. However, whether YQFM can suppress tPA-induced HT remains unknown. AIM OF THE STUDY: We investigated the therapeutic effect of YQFM on tPA-induced HT and explored the underlying mechanisms in vivo and in vitro to improve the safety of tPA use against stroke. METHODS: Male C57BL/6J mice were subjected to 45 min of ischemia and 24 h of reperfusion. tPA (10 mg/kg) were infused 2 h after occlusion and YQFM (0.671 g/kg) was injected 2.5 h after occlusion. The in vitro effect of YQFM (100, 200, 400 µg/mL) on tPA (60 µg/mL)-induced dysfunction of the microvascular endothelial barrier in the brain following oxygen-glucose deprivation/reoxygenation (OGD/R) was observed in bEnd.3 cells. RESULTS: YQFM suppressed tPA-induced high hemoglobin level in the brain, mortality, neurologic severity score, BBB permeability, expression and activation of matrix metalloproteinase (MMP)-9 and MMP-2, and degradation of tight-junction proteins. Furthermore, YQFM significantly blocked tPA-induced brain microvascular endothelial permeability and phosphorylation of Rho-associated kinase (ROCK)1, myosin light chain (MLC), cofilin and p65 in vivo and in vitro. CONCLUSION: YQFM suppressed tPA-induced HT by inhibiting cytoskeletal rearrangement linked with ROCK-cofilin/MLC pathways and inhibiting the nuclear factor-kappa B pathway to ameliorate BBB damage caused by tPA.


Assuntos
Hemorragia Cerebral/tratamento farmacológico , Citoesqueleto/efeitos dos fármacos , Medicamentos de Ervas Chinesas/administração & dosagem , NF-kappa B/antagonistas & inibidores , Ativador de Plasminogênio Tecidual/toxicidade , Quinases Associadas a rho/antagonistas & inibidores , Animais , Cardiotônicos/administração & dosagem , Hemorragia Cerebral/induzido quimicamente , Hemorragia Cerebral/metabolismo , Citoesqueleto/metabolismo , Fibrinolíticos/toxicidade , Liofilização/métodos , Injeções Intravenosas , Masculino , Camundongos , Camundongos Endogâmicos C57BL , NF-kappa B/metabolismo , Distribuição Aleatória , Transdução de Sinais/efeitos dos fármacos , Transdução de Sinais/fisiologia , Quinases Associadas a rho/metabolismo
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