Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 13 de 13
Filtrar
1.
Food Chem Toxicol ; 138: 111183, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32061855

RESUMEN

Herbal formulations have been used in ethnomedicine and pharmacy around the world for thousands of years. One of them is Jerusalem Balsam (JB), which came into use in the seventeenth century. Today, people still produce and use it regularly as prophylactic supplement. JB has been widely used in Europe since the nineteenth century, as a remedy possessing antibacterial, antifungal and anti-inflammatory activities. The composition of the product was not known, although possible formulations were reported. In this study the original sample, which dated back to 1870, was investigated for chemical composition and cytotoxic activity. The obtained results were compared with results from more recently produced samples. Several tests were carried out, namely GC-MS, UPLC-PDA-Q-TOF-MS and MTT. Only the 150-year old sample showed a significant cytotoxic activity on cancer cell lines. At a concentration of 125 µg/mL after 72 h of incubation, the original sample inhibited almost 90% of cell metabolic activity, while contemporary samples showed none or little activity. None of the tested samples showed a significant impact on normal cells. These results may be attributed to the activities of benzoic acid and its derivatives, cinnamic acid derivatives, vanillin, group of sesquiterpenes and cembrene.


Asunto(s)
Bálsamos/química , Bálsamos/farmacología , Fitoquímicos/análisis , Fitoquímicos/farmacología , Animales , Antibacterianos/análisis , Antibacterianos/farmacología , Antiinflamatorios/análisis , Antiinflamatorios/farmacología , Antifúngicos/análisis , Antifúngicos/farmacología , Antineoplásicos Fitogénicos/análisis , Antineoplásicos Fitogénicos/farmacología , Antioxidantes/análisis , Antioxidantes/farmacología , Benzaldehídos/análisis , Benzaldehídos/farmacología , Ácido Benzoico/análisis , Ácido Benzoico/farmacología , Línea Celular Tumoral , Supervivencia Celular/efectos de los fármacos , Cinamatos/análisis , Cinamatos/farmacología , Perros , Cromatografía de Gases y Espectrometría de Masas , Humanos , Ratones , Células 3T3 NIH , Sesquiterpenos/análisis , Sesquiterpenos/farmacología , Compuestos Orgánicos Volátiles/análisis
2.
Mater Sci Eng C Mater Biol Appl ; 64: 310-317, 2016 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-27127058

RESUMEN

In this work, newly developed nanocomposites based upon lamellar silicates are evaluated to determine their potential in controlling endometriosis. The preparation of the new nanocarriers is detailed, properties characterized and in vitro pharmacological evaluation performed. The nanocomposites in this study were obtained from the reaction of copaiba oil-resin (COPA) with the polymer polyvinylpyrrolidone (PVP K-30). COPA was selected due to its antiinflammatory and anticancer activities along with the organophilic derivatives of sodium montmorillonite, Viscogel B8, S7 and S4. The results indicated that it was feasible to obtain a good yield of a COPA nanocomposite using a simple process. Intercalation was confirmed by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). In vitro release experiments demonstrated that COPA was released from the nanocomposite in a delayed fashion. Whereas, in vitro pharmacological studies showed a reduction in viability and proliferation of endometriotic cell cultures upon COPA nanocomposite treatment, suggesting that the system developed here can be a promising alternative therapy for the oral treatment of endometriosis.


Asunto(s)
Bálsamos , Portadores de Fármacos , Endometriosis/tratamiento farmacológico , Endometrio/metabolismo , Nanocompuestos/química , Silicatos , Bálsamos/química , Bálsamos/farmacología , Células Cultivadas , Portadores de Fármacos/química , Portadores de Fármacos/farmacología , Endometriosis/metabolismo , Endometrio/patología , Femenino , Humanos , Silicatos/química , Silicatos/farmacología , Células del Estroma/metabolismo , Células del Estroma/patología
3.
Biomed Pharmacother ; 70: 12-8, 2015 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25776472

RESUMEN

Copaifera spp oleoresins have been used in folk medicine for centuries; nevertheless, its immunomodulatory action has not been investigated. Thus, the goal of this study was to characterize different oleoresins and to verify their action on human monocytes regarding pro- and anti-inflammatory cytokine production (TNF-α and IL-10, respectively). The chemical composition of Brazilian Copaifera reticulata, Copaifera duckey and Copaifera multijuga oleoresins was analyzed by HPLC-MS. Cell viability was assessed by MTT method after incubation of cells with Copaifera spp. Noncytotoxic concentrations of oleoresins were incubated with human monocytes from healthy donors, and cytokine production was determined by ELISA. HPLC-MS analysis for terpenes allowed the identification of six diterpene acids and one sesquiterpene acid. Oleoresins exerted no cytotoxic effects on human monocytes. All oleoresins had a similar profile: LPS-induced TNF-α production was maintained by oleoresins, while a significant inhibitory action on IL-10 production was seen. Copaifera oleoresins seemed to exert an activator profile on human monocytes without affecting cell viability. Such effect may be due to the presence of either diterpene or sesquiterpene acids; however, further studies are necessary to determine the involvement of such compounds in Copaifera immunomodulatory effects.


Asunto(s)
Bálsamos/farmacología , Fabaceae/química , Regulación de la Expresión Génica/efectos de los fármacos , Interleucina-10/metabolismo , Monocitos/efectos de los fármacos , Factor de Necrosis Tumoral alfa/metabolismo , Bálsamos/química , Supervivencia Celular , Células Cultivadas , Fabaceae/clasificación , Humanos , Interleucina-10/genética , Estructura Molecular , Especificidad de la Especie , Factor de Necrosis Tumoral alfa/genética
4.
J Agric Food Chem ; 60(23): 5909-14, 2012 Jun 13.
Artículo en Inglés | MEDLINE | ID: mdl-22620984

RESUMEN

This study evaluated the larvicidal activity of 20 plant essential oils and components from ajowan ( Trachyspermum ammi ) and Peru balsam ( Myroxylon pereira ) oils against the mosquito, Aedes aegypti . Of the 20 plant essential oils, ajowan and Peru balsam oils at 0.1 mg/mL exhibited 100 and 97.5% larval mortality, respectively. At this same concentration, the individual constituents, (+)-camphene, benzoic acid, thymol, carvacrol, benzyl benzonate, and benzyl trans-cinnamate, caused 100% mortality. The toxicity of blends of constituents identified in two active oils indicated that thymol and benzyl benzoate were major contributors to the larvicidal activity of the artificial blend. This study also tested the acute toxicity of these two active oils and their major constituents against the water flea, Daphnia magna . Peru balsam oil and benzyl trans-cinnamate were the most toxic to D. magna. Two days after the treatment, residues of ajowan and Peru balsalm oils in water were 36.2 and 85.1%, respectively. Less than 50% of benzyl trans-cinnamate and thymol were detected in the water at 2 days after treatment. The results show that the essential oils of ajowan and Peru balsam and some of their constituents have potential as botanical insecticides against Ae. aegypti mosquito larvae.


Asunto(s)
Aedes/efectos de los fármacos , Bálsamos/química , Carum/química , Cladóceros/efectos de los fármacos , Daphnia/efectos de los fármacos , Aedes/crecimiento & desarrollo , Animales , Cladóceros/crecimiento & desarrollo , Daphnia/crecimiento & desarrollo , Cromatografía de Gases y Espectrometría de Masas , Insecticidas/química , Insecticidas/farmacología , Larva/efectos de los fármacos , Larva/crecimiento & desarrollo , Aceites Volátiles/química , Aceites Volátiles/farmacología , Aceites de Plantas/química , Aceites de Plantas/farmacología
5.
Appl Environ Microbiol ; 78(11): 4057-61, 2012 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-22467497

RESUMEN

Biofilms are difficult to eliminate with standard antimicrobial treatments due to their high antibiotic resistance relative to free-living cells. Here, we show that selected antimicrobial essential oils can eradicate bacteria within biofilms with higher efficiency than certain important antibiotics, making them interesting candidates for the treatment of biofilms.


Asunto(s)
Antibacterianos/farmacología , Biopelículas/efectos de los fármacos , Aceites Volátiles/farmacología , Pseudomonas aeruginosa/efectos de los fármacos , Pseudomonas putida/efectos de los fármacos , Staphylococcus aureus/efectos de los fármacos , Bálsamos/química , Biopelículas/crecimiento & desarrollo , Cinnamomum/química , Humanos , Pruebas de Sensibilidad Microbiana , Aceites de Plantas/farmacología , Pseudomonas aeruginosa/crecimiento & desarrollo , Pseudomonas putida/crecimiento & desarrollo , Staphylococcus aureus/crecimiento & desarrollo , Thymus (Planta)/química
6.
J Agric Food Chem ; 60(11): 2852-62, 2012 Mar 21.
Artículo en Inglés | MEDLINE | ID: mdl-22360702

RESUMEN

The composition and antioxidant activity of Italian poplar propolis obtained using three harvesting methods and extracted with different solvents were evaluated. Waxes, balsams, and resins contents were determined. Flavones and flavonols, flavanones and dihydroflavonols, and total phenolics were also analyzed. To characterize the phenolic composition, the presence of 15 compounds was verified through HPLC-MS/MS. The antioxidant activity was evaluated through 1,1-diphenyl-2-picrylhydrazyl radical and reducing power assays. The ability of propolis to inhibit lipid oxidation was monitored by analyzing hydroperoxide and TBARS formation in lipids incorporated into an oil-in-water (O/W) emulsion. Acetone shows the highest extraction capacity. Wedge propolis has the highest concentration of active phenolic compounds (TP = 359.1 ± 16.3 GAEs/g; TFF = 5.83 ± 0.42%; TFD = 7.34 ± 1.8%) and seems to be the most promising for obtaining high-value propolis more suitable to prepare high-quality dietary supplements (TBARS = 0.012 ± 0.009 mmol std/g; RP = 0.77 ± 0.07 TEs/g).


Asunto(s)
Agricultura/métodos , Própolis/química , Antioxidantes/química , Antioxidantes/aislamiento & purificación , Bálsamos/química , Bálsamos/aislamiento & purificación , Cromatografía Líquida de Alta Presión , Italia , Própolis/aislamiento & purificación , Espectrometría de Masas en Tándem , Ceras/química , Ceras/aislamiento & purificación
7.
Anal Bioanal Chem ; 401(6): 1827-37, 2011 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-21725834

RESUMEN

Natural organic materials used to prepare pharmaceutical mixtures including ointments and balsams have been characterized by a combined non-destructive spectroscopic analytical approach. Three classes of materials which include vegetable oils (olive, almond and palm tree), gums (Arabic and Tragacanth) and beeswax are considered in this study according to their widespread use reported in ancient recipes. Micro-FTIR, micro-Raman and fluorescence spectroscopies have been applied to fresh and mildly thermally aged samples. Vibrational characterization of these organic compounds is reported together with tabulated frequencies, highlighting all spectral features and changes in spectra which occur following artificial aging. Synchronous fluorescence spectroscopy has been shown to be particularly useful for the assessment of changes in oils after aging; spectral difference between Tragacanth and Arabic gum could be due to variations in origin and processing of raw materials. Analysis of these materials using non-destructive spectroscopic techniques provided important analytical information which could be used to guide further study.


Asunto(s)
Bálsamos/química , Pomadas/química , Espectrometría de Fluorescencia/métodos , Espectroscopía Infrarroja por Transformada de Fourier/métodos , Espectrometría Raman/métodos , Tecnología Farmacéutica/historia , Goma Arábiga/análisis , Historia Antigua , Aceites de Plantas/análisis , Ceras/análisis
8.
J Pharm Biomed Anal ; 54(4): 653-9, 2011 Mar 25.
Artículo en Inglés | MEDLINE | ID: mdl-21095089

RESUMEN

Copaifera species (Leguminoseae) are popularly known as "copaiba" or "copaíva". The oleoresins obtained from the trunk of these species have been extensively used in folk medicine and are commercialized in Brazil as crude oil and in several pharmaceutical and cosmetic products. This work reports a complete validated method for the quantification of ß-caryophyllene, α-copaene, and α-humulene in distinct copaiba oleoresins available commercially. Thus, essential oil samples (100µL) were dissolved in 20mL of hexanes containing internal standard (1,2,4,5-tetramethylbenzene, 3.0mM) in a 25mL glass flask. A 1µL aliquot was injected into the GC-FID system. A fused-silica capillary column HP-5, coated with 5% phenyl-methylsiloxane was used for this study. The developed method gave a good detection response with linearity in the range of 0.10-18.74mM. Limits of detection and quantitation variety ranged between 0.003 and 0.091mM. ß-Caryophyllene, α-copaene, and α-humulene were recovered in a range from 74.71% to 88.31%, displaying RSD lower than 10% and relative errors between -11.69% and -25.30%. Therefore, this method could be considered as an analytical tool for the quality control of different Copaifera oil samples and its products in both cosmetic and pharmaceutical companies.


Asunto(s)
Bálsamos/química , Fabaceae/química , Sesquiterpenos/análisis , Tecnología Farmacéutica , Antiinflamatorios no Esteroideos/química , Ionización de Llama/métodos , Cromatografía de Gases y Espectrometría de Masas , Límite de Detección , Medicina Tradicional , Sesquiterpenos Monocíclicos , Aceites Volátiles/química , Sesquiterpenos Policíclicos , Control de Calidad , Reproducibilidad de los Resultados , Estadística como Asunto
9.
Rev Soc Bras Med Trop ; 40(3): 264-7, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-17653457

RESUMEN

Oil-resin fractions from Copaifera reticulata Ducke (Leguminosae-Caesalpinoideae) were evaluated for larvicidal activity on third larval instars of Aedes aegypti, in searching for alternative control methods for this mosquito. The bioactive fractions were chemically monitored by thin-layer chromatography, (1)H and 13C nuclear magnetic resonance and mass spectrometry. Bioassays were performed using five repetitions, at a temperature of 28+/-1 degrees C, relative humidity of 80+/- 5% and light and dark cycles of 12h. Mortality was indicated by darkening of the cephalic capsule after 24h of exposure of the larvae to the solutions. The most active fractions were CRM1-4 (sesquiterpenes) and CRM5-7 (labdane diterpenes), which showed LC50 values of 0.2 and 0.8 ppm, respectively.


Asunto(s)
Aedes , Bálsamos/química , Insecticidas , Animales , Brasil , Cromatografía en Capa Delgada , Larva/efectos de los fármacos , Dosificación Letal Mediana , Espectroscopía de Resonancia Magnética , Espectrometría de Masas
10.
J Ethnopharmacol ; 112(2): 248-54, 2007 Jun 13.
Artículo en Inglés | MEDLINE | ID: mdl-17446019

RESUMEN

Copaiba oil is an oleoresin obtained from the Copaifera L. genus (Leguminoseae) commonly featured in anti-inflammatory recipe prescribed by Amazonian traditional medical practitioners and featured in Europe and North America pharmacopeias of the past. Chemical and anti-inflammatory activity investigations from the copaiba oils obtained from Copaifera multijuga Hayne, Copaifera cearensis Huber ex Ducke and Copaifera reticulata Ducke species have proved that, although similar, these oleoresins possess varied composition and anti-inflammatory activity. Chromatographic studies showed that the main compound among sesquiterpenes was beta-caryophyllene (57.5, 19.7 and 40.9%, respectively), followed by alpha-humulene, alpha-copaene, alpha-bergamotene, delta-cadinene, with different amounts in each oleoresin. Among the diterpenes, copalic acid was the main component from Copaifera multijuga Hayne (6.2%) and was found in all the oleoresins studied. In Copaifera cearensis Huber ex Ducke, clorechinic (11.3%) and hardwickiic acids (6.2%) were the major diterpenes while kaurenoic (3.9%) and kolavenic acids (3.4%) predominated in Copaifera reticulata Ducke. The pharmacologic effects of the three oleoresins were evaluated in vitro by measuring the NO production by murine macrophages and in vivo using the zymosan induced pleurisy model in mice. The Copaiba Oil from Copaifera multijuga Hayne (100 mg/kg) was the most potent, inhibiting both NO production and the pleurisy induced by zymosan. The oleoresins from Copaifera cearensis Huber ex Ducke and Copaifera reticulata Ducke were also able to inhibit NO production and the pleurisy but with less intensity.


Asunto(s)
Antiinflamatorios , Bálsamos/química , Bálsamos/farmacología , Fabaceae/química , Animales , Bálsamos/uso terapéutico , Brasil , Supervivencia Celular/efectos de los fármacos , Células Cultivadas , Cromatografía de Gases , Cromatografía de Gases y Espectrometría de Masas , Macrófagos Peritoneales/efectos de los fármacos , Macrófagos Peritoneales/metabolismo , Masculino , Ratones , Ratones Endogámicos BALB C , Óxido Nítrico/metabolismo , Pleuresia/tratamiento farmacológico , Pleuresia/microbiología , Sesquiterpenos/química , Sesquiterpenos/farmacología , Sesquiterpenos/uso terapéutico , Especificidad de la Especie
11.
Ostomy Wound Manage ; 51(6): 52-4, 56-8, 2005 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-16014993

RESUMEN

Heparin-induced thrombocytopenia syndrome is a serious, potentially life-threatening adverse reaction to the use of heparin anticoagulation therapy that can result in significant skin damage and organ morbidity. A case study design is used to describe the innovative use of a topical wound treatment (trypsin-balsam of Peru-castor oil ointment) on bullous lesions related to the effects of this syndrome. An elderly, morbidly obese woman was treated for 2 weeks with twice-daily applications of the product along with non-adherent oil emulsion dressings. Oozing decreased substantially within a few days and open blisters closed within 1 week. After 2 weeks of therapy, the bullous skin reaction was fully resolved with no recurrence. The results of this case study suggest that this topical product may have had a positive effect on the bullous lesions and should be considered for use in other similar significant integumentary reactions.


Asunto(s)
Anticoagulantes/efectos adversos , Bálsamos/uso terapéutico , Vesícula , Aceite de Ricino/uso terapéutico , Heparina/efectos adversos , Trombocitopenia , Tripsina/uso terapéutico , Administración Cutánea , Anciano , Bálsamos/química , Vendajes , Vesícula/inducido químicamente , Vesícula/prevención & control , Aceite de Ricino/química , Química Farmacéutica , Combinación de Medicamentos , Femenino , Humanos , Enfermeras Clínicas , Evaluación en Enfermería , Obesidad Mórbida/complicaciones , Pomadas , Cuidados de la Piel/métodos , Cuidados de la Piel/enfermería , Síndrome , Trombocitopenia/inducido químicamente , Trombocitopenia/prevención & control , Resultado del Tratamiento , Tripsina/química , Cicatrización de Heridas
12.
J Ethnopharmacol ; 101(1-3): 16-26, 2005 Oct 03.
Artículo en Inglés | MEDLINE | ID: mdl-15963667

RESUMEN

The Jerusalem Balsam, a remedy based on an ethanolic extract of a herbal mixture, was formulated in 1719 in the pharmacy of the Saint Savior monastery in the old city of Jerusalem. Having gained fame, the Jerusalem Balsam was replicated and prepared in Europe. One can still find variations of the formula in current pharmacopoeias (B.P., 1998. The Stationary Office, London, p. 1510; Sweetman, S.C., Blake, P.S., McGlashan, J.M., Parsons, A.V., 2002. Martindale: The Extra Pharmacopeia, 33rd ed. Pharmaceutical Press, London, p. 1101). We report here, five different formulas, all referred to as "The Jerusalem Balsam". Three of those formulas were translated and two of these translations are presented in the text. A third one is available as Supplementary data online. As the formulas originate from different historical periods, the Jerusalem Balsam may be a good case study of the development of pharmaceutical formulations over a 250 years period. One of the formulas, found in a manuscript form in the archive of the monastery, contains four plants: olibanum (Boswellia spp.), myrrh (Commiphora spp.), aloe (Aloe sp.) and mastic (Pistacia lentiscus L.). We conducted pharmacological assays on this four-plant formula. It showed anti-inflammatory, as well as anti-oxidative, and anti-septic properties.


Asunto(s)
Bálsamos/farmacología , Animales , Antiinfecciosos Locales/farmacología , Antiinflamatorios/farmacología , Antioxidantes/farmacología , Bálsamos/química , Química Farmacéutica , Humanos , Israel , Ratones
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA