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1.
Phytother Res ; 38(4): 1932-1950, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38358681

RESUMO

Morinda citrifolia L., commonly known as Noni, has a longstanding history in traditional medicine for treating various diseases. Recently, there has been an increased focus on exploring Noni extracts and phytoconstituents, particularly for their effectiveness against cancers such as lung, esophageal, liver, and breast cancer, and their potential in cancer chemoprevention. This study aims to provide a comprehensive review of in vitro and in vivo studies assessing Noni's impact on cancer, alongside an exploration of its bioactive compounds. A systematic review was conducted, encompassing a wide range of scientific databases to gather pertinent literature. This review focused on in vitro and in vivo studies, as well as clinical trials that explore the effects of Noni fruit and its phytoconstituents-including anthraquinones, flavonoids, sugar derivatives, and neolignans-on cancer. The search was meticulously structured around specific keywords and criteria to ensure a thorough analysis. The compiled studies highlight Noni's multifaceted role in cancer therapy, showcasing its various bioactive components and their modes of action. This includes mechanisms such as apoptosis induction, cell cycle arrest, antiangiogenesis, and immune system modulation, demonstrating significant anticancer and chemopreventive potential. The findings reinforce Noni's potential as a safe and effective option in cancer prevention and treatment. This review underscores the need for further research into Noni's anticancer properties, with the hope of stimulating additional studies and clinical trials to validate and expand upon these promising findings.


Assuntos
Antineoplásicos Fitogênicos , Morinda , Extratos Vegetais , Morinda/química , Humanos , Extratos Vegetais/farmacologia , Extratos Vegetais/química , Antineoplásicos Fitogênicos/farmacologia , Antineoplásicos Fitogênicos/química , Neoplasias/prevenção & controle , Neoplasias/tratamento farmacológico , Animais , Apoptose/efeitos dos fármacos , Frutas/química , Flavonoides/farmacologia , Flavonoides/química , Compostos Fitoquímicos/farmacologia
2.
Health Care Women Int ; 43(10-11): 1234-1246, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34846271

RESUMO

The researchers' aims were to evaluate the effects of chokeberry juice in the treatment of burning mouth syndrome (BMS) and oral discomfort in menopausal women. The following validated scales and questionnaires were used before and after treatment: questionnaire used for selection of research participants with xerostomia, the xerostomia inventory, Visual Analogue Scale (VAS), localization of pain before and after treatment, short-form McGill pain questionnaire. There was statistically significant decrease in number of research participants who felt pain after therapeutic procedure (p < 0.05). Chokeberry juice, as additional therapy for BMS, reduced intensity of characteristic types of pain sensations and oral dryness feeling.


Assuntos
Síndrome da Ardência Bucal , Xerostomia , Feminino , Humanos , Síndrome da Ardência Bucal/tratamento farmacológico , Medição da Dor , Dor , Menopausa
3.
Phytother Res ; 34(4): 769-787, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31799719

RESUMO

Chronic pelvic pain syndrome (CPPS) can be triggered by a various types of gynecological, gastrointestinal, urological, and musculoskeletal disorders. Recently, the role of the central nervous system has proven to be an integral part on the development of any chronic pain syndrome, including CPPS. However, owing to the complex and heterogeneous etiology and pathophysiology of CPPS, the establishment of effective therapeutic interventions remains challenging for both physicians and patients. Nonetheless, recent studies have pointed that medicinal plants and their secondary metabolites can be effectively used in CPPS therapy, besides contributing to restore the patients' quality of life and potentiate the conventional CPPS management. In this sense, this review aims to provide a careful overview on the biomedical data for the use of medicinal plants use and their secondary metabolites on CPPS management.


Assuntos
Dor Crônica/tratamento farmacológico , Composição de Medicamentos , Descoberta de Drogas , Dor Pélvica/tratamento farmacológico , Compostos Fitoquímicos/uso terapêutico , Plantas Medicinais , Doença Crônica , Composição de Medicamentos/métodos , Composição de Medicamentos/tendências , Descoberta de Drogas/métodos , Descoberta de Drogas/tendências , Feminino , Humanos , Masculino , Doença Inflamatória Pélvica/tratamento farmacológico , Compostos Fitoquímicos/isolamento & purificação , Plantas Medicinais/química , Plantas Medicinais/classificação , Qualidade de Vida , Síndrome
4.
J Appl Biomed ; 17(4): 218-224, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34907720

RESUMO

Recent literature evidence indicates the potential use of chokeberry preparations in the prevention and treatment of some chronic noncommunicable diseases. The aim of the present study was to evaluate the effects of the three months oral chokeberry juice supplementation in type 2 diabetic patients, as well as its influence on hematological parameters and certain parameters of the renal dysfunction. The study was designed as an open-label trial, which included 35 patients who have received the herbal supplement, polyphenol-rich chokeberry juice (150 ml/day, three times a day for 50 ml), in addition to their standard therapy. Chokeberry juice as a rich source of polyphenol compounds could be an effective preventive and therapeutic agent in diabetes mellitus type 2. Hematological and biochemical parameters were measured at baseline, after 3 months with the chokeberry juice supplementation and after the next 3 months without the chokeberry juice supplementation (follow-up period). Significant difference was noticed in the levels of LDL-cholesterol, glycated hemoglobin and serum creatinine (p < 0.05), as well as in the levels of some hematological parameters, such as white blood cell and lymphocyte count (p < 0.01), hematocrit, blood hemoglobin, mean corpuscular volume, hemoglobin and hemoglobin concentration and red blood cell count (p < 0.05). The daily consumption of the chokeberry juice could improve the health status in patients with type 2 diabetes mellitus, in combination with their standard therapy.

5.
Med Princ Pract ; 27(2): 179-185, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29402838

RESUMO

OBJECTIVE: The purpose of this study was to investigate the relaxative effects of blackcurrant juice on the gastrointestinal smooth muscle in vitro. MATERIALS AND METHODS: Berries of the blackcurrant cultivar Ometa were used for the preparation of the juice used. The spasmolytic activity of blackcurrant juice was tested on rat ileum isolated from male Wistar rats by monitoring its influence on spontaneous contractions, as well as contractions induced by potassium chloride (KCl), barium chloride (BaCl2), calcium chloride (CaCl2), and acetylcholine (Ach). The results are expressed as the mean ± standard deviation obtained in 6 measurements and statistical significance was determined by the Student t test, with p < 0.05 taken as significant. RESULTS: The blackcurrant cultivar Ometa significantly reduced the frequency and the amplitude of spontaneous contractions (57.94 ± 3.44%) and Ach-induced contractions (42.74 ± 5.36%; p < 0.05) of the isolated rat ileum. Cumulative concentrations (0.01-3 mg/mL) of the Ometa juice also reduced contractions of the isolated rat ileum stimulated by KCl (51.46 ± 6.87%), CaCl2 (57.54 ± 6.47%), and BaCl2 (58.54 ± 10.55%). The inhibitory effects of the juice were proportional to the applied concentration. CONCLUSION: The antispasmodic effect of Ometa cultivar shows that common gastrointestinal disorders could be treated by the functional food.


Assuntos
Íleo/efeitos dos fármacos , Contração Muscular/efeitos dos fármacos , Músculo Liso/efeitos dos fármacos , Parassimpatolíticos/farmacologia , Extratos Vegetais/farmacologia , Ribes , Animais , Relação Dose-Resposta a Droga , Sucos de Frutas e Vegetais , Gastroenteropatias , Masculino , Ratos , Ratos Wistar , Resultado do Tratamento
6.
Can J Physiol Pharmacol ; 94(10): 1102-1105, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27564244

RESUMO

The aim of this study was to evaluate the effects of black currant (Ribes nigrum L. 'Ben Sarek') juice on the blood pressure and frequency of cardiac contractions, as well as vasomotor responses of rat aortic rings. Arterial blood pressure was measured directly from the carotid artery in the anaesthetized rabbits. The aortic rings were pre-contracted with KCl (80 mmol·L-1), after which black currant juice was added. An intravenous injection of black currant juice (0.33-166.5 mg·kg-1) induced a significant and dose-dependent decrease of rabbit arterial blood pressure and heart rate. The black currant juice decreased arterial blood pressure of rabbit by 22.33% ± 3.76% (p < 0.05) and heart rate by 17.18% ± 2.93% (p < 0.05). Cumulative addition of the black currant juice (0.01-3 mg·mL-1) inhibited concentration-dependent KCl induced contractions of the isolated rat aorta. The black currant juice, at the concentration of 3 mg·mL-1, caused a maximum relaxation of 21.75% ± 3.15% (p < 0.05). These results demonstrate that black currant juice can induce hypotension. The hypotensive effect of the black currant may occur as the consequence of its inhibitory activity on the rate of heart contraction and vasorelaxant effects.

7.
Plants (Basel) ; 13(11)2024 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-38891254

RESUMO

This study aimed to evaluate the spasmolytic activity of an underground parts extract of Gentiana asclepiadea L. (Gentianaceae), assess its antioxidant and antimicrobial activities, and explore the impact of extract encapsulation on the aforementioned bioactivities. An extract encapsulated by spray drying with whey protein, pure extract, and pure whey protein were comparatively tested. The main compounds identified via HPLC-DAD analysis underwent in silico ADME assessment. The spasmolytic effect was tested on a model of spontaneous rat ileum contractions, and the mechanism of action was further evaluated on acetylcholine-, KCl-, CaCl2-, BaCl2-, histamine-, N(ω)-nitro-L-arginine methyl ester-, and glibenclamide-modified contractions. The most abundant compounds were secoiridoids (dominantly gentiopicroside), followed by C-glycosylated flavonoids and xanthones. Both pure and encapsulated extracts achieved significant spasmolytic effects, despite the spasmogenic activity of pure whey protein. The extract may exert its spasmolytic effect through multiple pathways, predominantly by antagonizing the Ca2+ channel and opening the K+ channel, while the nitric oxide pathway appears not to be involved. The antimicrobial and antioxidant activities of the pure extract were moderate. The extract stabilized by encapsulation retained all of the tested bioactivities of the unencapsulated extract. The obtained results suggest that G. asclepiadea has potential for use in the treatment of some gastrointestinal complaints and that the encapsulated extract could be a valuable functional ingredient in pharmaceutical and food products.

8.
Plants (Basel) ; 13(3)2024 Feb 04.
Artigo em Inglês | MEDLINE | ID: mdl-38337986

RESUMO

The roots of Gentiana lutea L. are utilized in the preparation of various beverages and herbal remedies, serving as a traditional remedy for gastrointestinal ailments. The spasmolytic activity that could substantiate the traditional use of G. lutea root had not been investigated. The main objective goal of the study was to determine the validity of its use as a traditional remedy. The extraction of G. lutea root was performed using a 50% hydroethanolic solvent with three different extraction techniques: ultrasound-assisted extraction (UAE), heat-assisted extraction, and percolation. The spasmolytic activity was tested on isolated rat ileum. The mechanism of action was monitored using the models of spontaneous contractions and acetylcholine-, histamine-, CaCl2-, Bay K8644-, L-NAME-, ODQ-, apamin-, BaCl2-, charybdotoxin-, glibenclamide-, TRAM-34-, and quinine-modified contractions. UAE, having the best bioactivity, was further subjected to a liquid-liquid extraction fractionation. HPLC phytochemical analysis was performed for all tested extracts and fractions. Gentian root extracts were rich in secoiridoids, xanthones, and flavonoids. The UAE has shown better results on spontaneous contractions in comparison to its fractions, leading to the more detailed testing of its spasmolytic mechanism of activity. The extract's activity is primarily mediated through intermediate conductance Ca2+-activated K+ channels, ATP-sensitive K+ channels, voltage-sensitive K+ channels, and mechanisms that activate Ca2+ channels. Overall, the G. lutea root shows great potential in the treatment of spasmodic gastrointestinal ailments.

9.
Clin Exp Hypertens ; 35(8): 595-600, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23488937

RESUMO

The acute negative inotropic and chronotropic effects of the commercial extract of ginkgo leaf (Gingium(®)) and ethanolic extracts of onion bulbs and celery root on spontaneous and noradrenalin-stimulated contractions of the Wistar rat atria were investigated. All analyzed extracts exerted negative inotropic effects on the isolated rat atria. Among the tested extracts, the extract of ginkgo showed the strongest negative inotropic effects on rat atria, either in spontaneous or noradrenalin-induced contractions, being more potent than the onion and celery extracts, respectively.


Assuntos
Apium , Ginkgo biloba , Coração/efeitos dos fármacos , Contração Miocárdica/efeitos dos fármacos , Cebolas , Extratos Vegetais/farmacologia , Animais , Depressão Química , Átrios do Coração/efeitos dos fármacos , Folhas de Planta , Raízes de Plantas , Ratos , Ratos Wistar
10.
Chem Biodivers ; 10(7): 1335-49, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23847079

RESUMO

Characterization by GC-FID and GC/MS analyses of the Stachys officinalis (L.) Trevis. essential oil obtained by hydrodistillation of the aerial parts allowed the identification of 190 components that represented 97.9% of the total oil content. The main constituents identified were germacrene D (19.9%), ß-caryophyllene (14.1%), and α-humulene (7.5%). Terpenoids were by far predominant (89.4%), with sesquiterpene hydrocarbons (69.1%) and oxygenated sesquiterpenes (14.8%) being the most abundant compounds detected in the oil. Based on the present and previously published results, multivariate statistical comparison of the chemical composition of the essential oils was performed within the species. Principal component analysis (PCA) and agglomerative hierarchical clustering (AHC) of the data on the volatile profiles of S. officinalis taxa revealed no pronounced differences among the samples originated from the Balkan Peninsula. Additionally, the oil was screened for in vitro antibacterial and antifungal activity using the broth microdilution assay. The oil's best antimicrobial activities were obtained against the mold Aspergillus niger (minimal inhibitory (MIC) and minimal fungicidal (MFC) concentrations of 2.5 and 5.0 mg/ml, resp.) and the yeast Candida albicans (MIC and MFC of 5.0 mg/ml).


Assuntos
Anti-Infecciosos/química , Óleos Voláteis/análise , Stachys/química , Anti-Infecciosos/isolamento & purificação , Anti-Infecciosos/farmacologia , Aspergillus niger/efeitos dos fármacos , Candida albicans/efeitos dos fármacos , Análise por Conglomerados , Cromatografia Gasosa-Espectrometria de Massas , Testes de Sensibilidade Microbiana , Óleos Voláteis/isolamento & purificação , Óleos Voláteis/farmacologia , Componentes Aéreos da Planta/química , Análise de Componente Principal
11.
Pharmaceutics ; 15(5)2023 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-37242618

RESUMO

The use of medicinal plant species and their products is widespread in the field of gastrointestinal and respiratory diseases. This study aimed to evaluate the traditional use of Salvia sclarea L., clary sage, finding the possible mechanisms of its spasmolytic and bronchodilator actions in in vitro conditions supported by molecular docking analysis, along with the antimicrobial effects. Four dry extracts were prepared from the aerial parts of S. sclarea, using absolute or 80% (v/v) methanol by the method of a single-stage maceration or an ultrasound-assisted extraction. Characterization of the bioactive compounds by high-performance liquid chromatography indicated the presence of significant amounts of polyphenolics, with rosmarinic acid as the prevalent one. The spontaneous ileal contractions were best inhibited by the extract prepared with 80% methanol and maceration. The same extract was superior in the carbachol- and KCl-induced tracheal smooth muscle contractions, being the strongest bronchodilator agent. The most powerful relaxation of KCl-induced ileal contractions was achieved with the extract made of absolute methanol by maceration, while the 80% methanolic extract made with the ultrasound method generated the best spasmolytic effects in the acetylcholine-induced ileal contractions. Docking analysis suggested that apigenin-7-O-glucoside and luteolin-7-O-glucoside exhibited the highest binding affinity to voltage-gated calcium channels. Gram (+) bacteria were more susceptible to the effects of the extracts, particularly Staphylococcus aureus, in contrast to Gram (-) bacteria and Candida albicans. This is the first study to point out the influence of S. sclarea methanolic extracts on the gastrointestinal and respiratory spasm reduction, paving the way for their potential place in complementary medicine.

12.
Plants (Basel) ; 11(14)2022 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-35890519

RESUMO

Prunus armeniaca L. (Rosaceae)-syn. Amygdalus armeniaca (L.) Dumort., Armeniaca armeniaca (L.) Huth, Armeniaca vulgaris Lam is commonly known as the apricot tree. The plant is thought to originate from the northern, north-western, and north-eastern provinces of China, although some data show that it may also come from Korea or Japan. The apricot fruit is used medicinally to treat a variety of ailments, including use as an antipyretic, antiseptic, anti-inflammatory, emetic, and ophthalmic remedy. The Chinese and Korean pharmacopeias describe the apricot seed as an herbal medicinal product. Various parts of the apricot plant are used worldwide for their anticancer properties, either as a primary remedy in traditional medicine or as a complementary or alternative medicine. The purpose of this review was to provide comprehensive and up-to-date information on ethnobotanical data, bioactive phytochemicals, anticancer potential, pharmacological applications, and toxicology of the genus Prunus armeniaca, thus providing new perspectives on future research directions. Included data were obtained from online databases such as PubMed/Medline, Google Scholar, Science direct, and Wiley Online Library. Multiple anticancer mechanisms have been identified in in vitro and in vivo studies, the most important mechanisms being apoptosis, antiproliferation, and cytotoxicity. The anticancer properties are probably mediated by the contained bioactive compounds, which can activate various anticancer mechanisms and signaling pathways such as tumor suppressor proteins that reduce the proliferation of tumor cells. Other pharmacological properties resulting from the analysis of experimental studies include neuroprotective, cardioprotective, antioxidant, immunostimulatory, antihyperlipidemic, antibacterial, and antifungal effects. In addition, data were provided on the toxicity of amygdalin, a compound found in apricot kernel seeds, which limits the long-term use of complementary/alternative products derived from P. armeniaca. This updated review showed that bioactive compounds derived from P. armeniaca are promising compounds for future research due to their important pharmacological properties, especially anticancer. A detailed analysis of the chemical structure of these compounds and their cytotoxicity should be carried out in future research. In addition, translational pharmacological studies are required for the correct determination of pharmacologically active doses in humans.

13.
Clin Exp Hypertens ; 33(2): 95-9, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21269057

RESUMO

The acute effect of ethanol extracts ginkgo (Ginkgo biloba L.), garlic (Allium sativum L.), and onion (Allium cepa L.) on arterial blood pressure (BP), and heart rate (HR) in anesthetized normotensive rats was examined and compared. Arterial BP was registered in the left carotid artery. The data showed that intravenous administration of the extracts produced dose-dependent and reversible hypotensive and bradycardic effects. The most effective in reducing arterial BP and HR is extract of garlic. There were statistically significant differences in bradycardic and hypotensive effects of the garlic and ginkgo extracts.


Assuntos
Anti-Hipertensivos/farmacologia , Pressão Sanguínea/efeitos dos fármacos , Alho , Ginkgo biloba , Frequência Cardíaca/efeitos dos fármacos , Cebolas , Animais , Bradicardia/etiologia , Alho/química , Ginkgo biloba/química , Hipertensão/tratamento farmacológico , Hipertensão/fisiopatologia , Masculino , Cebolas/química , Fitoterapia , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Plantas Medicinais , Ratos , Ratos Wistar
14.
Phytother Res ; 25(5): 749-54, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21438047

RESUMO

Arbutus unedo leaf is used traditionally for gastrointestinal complaints. Ethanol extracts from Arbutus unedo collected in both Montenegro (AuM) and Greece (AuG) were found to decrease the ileal basal tonus, with AuG producing a significantly higher (p < 0.05) reduction in contractile response to acetylcholine. AuM and AuG relaxed 80 mM K(+) induced contractions and shifted the Ca(++) concentration-response curves to the right, similar to that caused by verapamil, suggesting that the spasmolytic effect was induced through calcium channel inhibition. The antioxidant activity of AuM and AuG and the phenolic content of the extracts and dry plant material were studied, and both extracts were found to possess considerable antioxidant properties. AuG showed a stronger in vitro antioxidative activity in the DPPH assay and in the TBA test. Polyphenol, tannin and flavonoid levels were higher in AuG, supporting the more potent spasmolytic and antioxidative effects, whereas the arbutin content was higher in dry plant material collected in Montenegro.


Assuntos
Antioxidantes/farmacologia , Ericaceae/química , Íleo/efeitos dos fármacos , Parassimpatolíticos/farmacologia , Extratos Vegetais/farmacologia , Polifenóis/farmacologia , Animais , Arbutina/análise , Cálcio/farmacologia , Flavonoides/análise , Grécia , Hidroquinonas/análise , Íleo/fisiologia , Masculino , Montenegro , Extratos Vegetais/química , Folhas de Planta/química , Ratos , Ratos Wistar , Taninos/análise
15.
Oxid Med Cell Longev ; 2021: 3095514, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34326915

RESUMO

The genus Viburnum (Adoxaceae, Dipsacales) is of scientific interest due to the chemical components and diverse biological activities found across species of the genus, which includes more than 230 species of evergreen, semievergreen, or deciduous shrubs and small trees. Although frequently used as an ornament, the Viburnum species show biological properties with health-promoting effects. Fruits, flowers, and barks of certain species are used for pharmaceutical purposes or as cooking ingredients, hence containing biochemical compounds with health-promoting activity such are carotenoids, polyphenols, and flavonoids. However, its taxonomical determination is difficult, due to its wide distribution and frequent hybridizations; therefore, an objective classification would allow us to understand its biological activity based on its phytochemical components. More than sixty phytochemical compounds have been reported, where vibsanin-type diterpenes and their derivatives are the most prevalent. Leaves and twigs of V. dilatatum contain the largest number of phytochemicals among the genus. Through preclinical evidence, this study provides insight regarding antioxidant, antibacterial, anti-inflammatory, cytotoxic, and anticancer activities of genus Viburnum.


Assuntos
Antineoplásicos Fitogênicos/uso terapêutico , Viburnum/química , Antineoplásicos Fitogênicos/farmacologia , Humanos
16.
Clin Exp Hypertens ; 32(5): 251-5, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20662724

RESUMO

The acute negative inotropic and chronotrophic effects of aqueous and alcoholic garlic extracts (Allium sativum L.) on spontaneous and adrenalin-stimulated contractions of the Wistar rat atria were investigated. The addition of garlic extracts to isolated rat atria evoked negative inotropic and chronotropic effects. Ethanolic garlic extract exerts much stronger negative inotropic (58.33 +/- 14.76%) effects than aqueous extract (43.66 +/- 16.32%). The difference in frequency reduction is especially conspicuous. Aqueous garlic extract very slightly affects the frequency, while ethanolic extract reduces it by more than 40%. In addition to these effects, the positive inotropism and chronotropism induced by the addition of noradrenaline, were much more antagonized by ethanolic garlic extract than by aqueous extract. Moreover, ethanolic garlic extract establishes sinus rhythm in the atria with extrasystoles induced by noradrenaline.


Assuntos
Etanol , Alho , Átrios do Coração/efeitos dos fármacos , Extratos Vegetais/farmacologia , Água , Animais , Relação Dose-Resposta a Droga , Feminino , Frequência Cardíaca/efeitos dos fármacos , Masculino , Modelos Animais , Contração Miocárdica/efeitos dos fármacos , Norepinefrina/farmacologia , Ratos , Ratos Wistar
17.
Molecules ; 15(5): 3391-401, 2010 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-20657488

RESUMO

Helichrysum plicatum (Turkish Helichrysum) has been used in folk medicine for the treatment of gastric and hepatic disorders. The aim of the present study was to examine the relaxant activity of an extract of H. plicatum flowers on isolated rat ileum. Segments of ileum of rats were suspended in an organ bath. Cumulative concentrations of H. plicatum ethanol extract induced a relaxant effect on spontaneous rat ileum contractions. H. plicatum extract caused a mean contractile response of 81.68 +/- 6.17% (at a dose of 0.01 mg/mL) and 30.08 +/- 9.07% (at a dose of 1 mg/mL). A similar effect was observed with papaverine (0.01-3 microg/mL). H. plicatum extract (0.01-1 mg/mL) relaxed high K+ (80 mM) precontractions, an effect similar to that caused by papaverine (0.01-3 microg/mL). The plant extract (0.03-0.3 mg/mL) also induced a significant depression of the cumulative concentration response curve for acetylcholine (5-1500 nM) (p < 0.01). Atropine (140 nM) abolished the acetylcholine effect. The extract (0.03-0.3 mg/mL) reduced the histamine (1-300 nM) and BaCl2 (3-900 microM) induced contractions (p < 0.01). Our results showed the relaxant effect of the ethanol extract of Helichrysum plicatum flowers on the isolated rat intestine Extract of H. plicatum can inhibit the spontaneous ileum contractions and contractions induced by acetylcholine, histamine, barium and potassium ions.


Assuntos
Helichrysum/química , Íleo/efeitos dos fármacos , Contração Muscular/efeitos dos fármacos , Extratos Vegetais/farmacologia , Acetilcolina/farmacologia , Animais , Etanol , Histamina/farmacologia , Íleo/fisiologia , Técnicas In Vitro , Extratos Vegetais/uso terapêutico , Ratos
18.
Gen Physiol Biophys ; 28 Spec No: 174-8, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19893097

RESUMO

In this paper we present the results of studying the effects of the essential oil of Calamintha glandulosa Silic (EOCG) on the isolated rat ileum. C. glandulosa Silic has been used in folk medicine as an antispasmodic. EOCG (0.003-1 mg/ml) inhibited spontaneous contraction of the ileum (EC50 of 210.48 +/- 9.12 microg/ml). The calcium channel blocking activity was confirmed by inhibition of K(+) (80 mmol/l) induced contractions with EOCG (EC50 of 88.81 +/- 6.01 microg/ml). EOCG shifted cumulative calcium curves in depolarizing medium downward (EC50 of 18.18 +/- 1.87 mmol/l), similar to the effects of verapamil. Our results confirm that the EOCG shows spasmolytic action in rat ileum. The spasmolytic effect of the EOCG was due to blockade of calcium influx. One of the main components of the EOCG is monoterpenoide pulegone. Namely, pulegone (0.15-50 micromol/l) inhibited the spontaneous (EC50 of 9.02 +/- 0.08 microg/ml), and K(+) induced contractions of the ileum (EC50 of 4.05 +/- 0.14 microg/ml), and run rightward the dose response curve of calcium. Pulegone may have a main role in spasmolytic activities of the plant.


Assuntos
Cálcio/metabolismo , Íleo/efeitos dos fármacos , Íleo/metabolismo , Lamiaceae/química , Óleos Voláteis/farmacologia , Parassimpatolíticos/farmacologia , Animais , Cloreto de Cálcio/farmacologia , Monoterpenos Cicloexânicos , Relação Dose-Resposta a Droga , Íleo/fisiologia , Técnicas In Vitro , Monoterpenos/farmacologia , Relaxamento Muscular/efeitos dos fármacos , Cloreto de Potássio/farmacologia , Ratos , Verapamil/farmacologia
19.
J Ethnopharmacol ; 199: 52-59, 2017 Mar 06.
Artigo em Inglês | MEDLINE | ID: mdl-28093319

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Salvia sclarea L., clary, is an aromatic plant traditionally used in folk medicine for the treatment of various diseases and conditions. Although it has been primarily used as a stomachic, there are data on traditional use of S. sclarea as an agent against gingivitis, stomatitis and aphthae. AIM OF THE STUDY: The aim of the study was to examine the effect of the S. sclarea ethanolic extract on the lipopolysaccharide (LPS)-induced periodontitis in rats from the immunological and histopathological standpoint. MATERIAL AND METHODS: Periodontal inflammation in rats was induced by repeated injections of LPS from Escherichia coli into the interdental papilla between the first and second right maxillary molars. The extract was administered two times a day by oral gavage (200mg/kg body weight). The inflammatory status was assessed by the measurements of proinflammatory cytokines interleukin-1ß (IL-1ß), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) of gingival tissues and descriptive analysis of histological sections of periodontium. Chemical characterization of the extract was determined using high performance liquid chromatography system (HPLC). Antioxidant activity of the extract was estimated with two in vitro complementary methods: 2,2-diphenyl-1-picrylhydrazyl and ß-carotene/linoleic acid models. RESULTS: Treatment with S. sclarea extract, compared to the untreated group of the rats, significantly diminished the process of inflammation decreasing the levels of IL-1ß, IL-6 and TNF-α, reducing the gingival tissue lesions and preserving bone alveolar resorption. Considerably smaller number of inflammatory cells and larger number of fibroblasts was noticed. The administration of the extract three days earlier did not have significant preventive effects. Rosmarinic acid was the predominant compound in the extract. The extract showed strong antioxidant effects in both test systems. CONCLUSIONS: S. sclarea extract manifested anti-inflammatory effect in LPS-induced periodontitis suggesting that it may have a role as a therapeutic agent in periodontal diseases. Having in mind that overproduction of reactive oxygen species is connected to periodontitis, the strong antioxidant capacity may be contributable to anti-inflammatory properties of the extract.


Assuntos
Anti-Inflamatórios/uso terapêutico , Mediadores da Inflamação/antagonistas & inibidores , Lipopolissacarídeos/toxicidade , Periodontite/tratamento farmacológico , Extratos Vegetais/uso terapêutico , Salvia , Animais , Anti-Inflamatórios/isolamento & purificação , Anti-Inflamatórios/farmacologia , Etanol/farmacologia , Etanol/uso terapêutico , Mediadores da Inflamação/metabolismo , Masculino , Periodontite/induzido quimicamente , Periodontite/metabolismo , Extratos Vegetais/isolamento & purificação , Extratos Vegetais/farmacologia , Distribuição Aleatória , Ratos , Ratos Wistar , Resultado do Tratamento
20.
Turk J Med Sci ; 45(4): 964-71, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26422875

RESUMO

BACKGROUND/AIM: A considerable number of patients suffering from diabetes mellitus (DM) turn to self-medication using medicinal plants, preparations, and medicine. The aim of this study was to investigate self-medication using medicinal plants and the potential influence of health care professionals' advice or media information regarding the use of herbal dietary supplements with hypoglycemic effect in a population of patients with type 2 DM. MATERIALS AND METHODS: This research, in the form of an analytic cross-sectional study, was conducted in 6 pharmacies in the territory of Nis, Serbia, during October 2013. The criterion set for the study was to include patients diagnosed with type 2 diabetes who used pharmacotherapy in addition to herbal supplements. RESULTS: Surveyed women showed a statistically significant difference in the frequency of using herbal supplements compared to men (P < 0.001). More frequent symptoms of hypoglycemia were reported in the group of diabetic respondents who used herbal dietary supplements (P < 0.05). The media was most responsible for influencing decisions about self-medication that included the use of herbal dietary supplements. CONCLUSION: The role of health professionals is indispensable and very important, especially when the media is a potential cause of seeking self-medication.


Assuntos
Diabetes Mellitus Tipo 2 , Suplementos Nutricionais , Hipoglicemia , Hipoglicemiantes/uso terapêutico , Fitoterapia , Estudos Transversais , Diabetes Mellitus Tipo 2/dietoterapia , Diabetes Mellitus Tipo 2/tratamento farmacológico , Suplementos Nutricionais/efeitos adversos , Suplementos Nutricionais/normas , Feminino , Humanos , Hipoglicemia/etiologia , Hipoglicemia/prevenção & controle , Masculino , Pessoa de Meia-Idade , Educação de Pacientes como Assunto , Fitoterapia/efeitos adversos , Fitoterapia/métodos , Automedicação , Sérvia , Inquéritos e Questionários
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