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PURPOSE: To compare a liposomal gel with and without chamomile extract for the prevention of radiation dermatitis in breast cancer patients undergoing radiotherapy. METHODS: This study was a double-blind randomized clinical trial. A total of 100 participants undergoing radiotherapy for breast cancer were recruited. The primary outcome was the occurrence of dry desquamation. Cumulative dose of ionizing radiation at the first occurrence of dry desquamation, occurrence of erythema, moist desquamation, global radiation dermatitis, and any signs and symptoms self-reported by participants were secondary outcomes. RESULTS: Dry desquamation occurred in 6.0% of the participants using chamomile liposomal gel and 12.2% of those using liposomal gel (p = 0.32). The mean cumulative dose of ionizing radiation for the first occurrence of dry desquamation was 45.1 Gy in the chamomile liposomal gel group and 43.7 Gy in the liposomal gel group. There were no differences between the two gels in the occurrence of erythema, dry desquamation, moist desquamation, and radiation dermatitis compared to liposomal gel. There was a lower proportion of reported symptoms in the chamomile liposomal gel group compared to liposomal gel group in the first 3 weeks of radiation, especially for itching (p = 0.05). CONCLUSION: No statistically significant differences between the two gels were found in radiation dermatitis occurrence and dose at first occurrence. Comparing to the literature, it seems that both interventions may be effective, which might explain the lack of statistical difference between the groups.

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BACKGROUND AND PURPOSE: Head and neck cancer patients frequently develop radiation dermatitis (RD) during radiotherapy. We compared liposomal gel with and without chamomile extract for the prevention and management of RD in head and neck cancer patients undergoing radiotherapy. MATERIALS AND METHODS: Sixty participants undergoing radiotherapy for the first time for head and neck cancer were recruited in a double-blind randomized clinical trial. Primary outcomes were the occurrence of dry desquamation and the cumulative dose of ionizing radiation at the first occurrence of dry desquamation. Secondary outcomes were the occurrence of erythema, moist desquamation, global RD, and participant self-reported symptoms. RESULTS: Dry desquamation occurred in 76.9 % (95 % CI: 57.9, 89.0) of participants in the chamomile liposomal gel group and in 88.9 % (95 % CI: 71.9, 96.1) in the liposomal gel group (p = 0.43). The median cumulative dose of ionizing radiation when dry desquamation occurred was 48.0 Gy in the chamomile liposomal gel group and 40.0 Gy in the liposomal gel group. Fewer symptoms were reported in the chamomile liposomal gel group. CONCLUSION: No statistically significant differences in outcomes were found between the two groups, though the chamomile liposomal gel group presented with lower grades of RD than the liposomal gel group. In addition, when compared to the literature on other topical interventions to manage RD, our results show that chamomile liposomal gel has potential for better management and prevention of RD in this population, which should be further tested. This study provides crucial information to design future studies. Clinical Trials Registration (REBEC): RBR-92cts3.

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The essential oils prepared by hydrodistillation of twenty-one brands of German chamomile (S1-S21) commercialized in Mexico were analyzed by GS-MS. Altogether, twenty-four different compounds were identified in the analyzed samples, varying from 77 to 100 % of the total composition. Multivariate analyses were applied to explore similarity/dissimilarity and correlation between all samples; the results revealed a strong correlation among samples S4, S5, and S7-S21 due to the presence of (Z)-en-yn-dicycloether [(Z)-tonghaosu], α-bisabolol, ß-farnesene, ß-eudesmol, and xanthoxylin. The samples S1-S3 and S6 were clustered separately. Samples S1, S3, and S6 were characterized by their higher content of bisabolol oxide A (38.78 %, 51.84 %, and 70.46 %, respectively) as most known chemotypes of German chamomile, but only S1 and S3 contained chamazulene. Finally, S2 differed from the others because of its high content of (E)-anethole (62.28 %), suggesting a case of adulteration or substitution of the crude drug employed for manufacturing the product.

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Laser photobiomodulation (LPBM) has been shown to be one of the possible modulating agents of inflammation. Similarly, medicinal plants, such as chamomile (Matricaria recutita) are also used with the same purpose. To evaluate tissue repair in the dorsum of the tongue of rats under topical use of chamomile alone and in association with LPBM. Seventy-five male Wistar rats received a standardized wound on the dorsum of the tongue and were allocated into experimental groups: Control (G1), Chamomile Fluid extract (G2), Chamomile Infusion (G3), Laser (G4), Chamomile Infusion + Laser (G5). Euthanasia was done on days 3, 7, and 14 after surgery. Ulcers were evaluated and measured with a caliper. Sections stained with hematoxylin and eosin and Picrosirius Red allowed evaluation of edema, inflammatory infiltrate, cellularity, and re-epithelialization and characterization of total collagen. Histomorphometric analysis of the percentage of total collagen, the distance from the basal layer to the epithelial surface, and the thickness of the stratum corneum were performed. The G2 and G4 groups modulated the exudative and proliferative phases of inflammation, both clinically and histologically. The G3 and G5 groups did not show significant differences in relation to the G1 group in most of the evaluated parameters. Chamomile fluid extract and LPBM alone showed better clinical and histological responses for tissue repair than the association between these therapeutic modalities. There were differences in the parameters of clinical, histological, and histomorphometric patterns between the experimental groups of the present investigation. The LPBM proved to be superior in the performed analysis.

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Medicinal plants have been commonly associated with chemotherapeutic treatments, as an approach to reduce the toxicological risks of classical anticancer drugs. The objective of this study was to evaluate the effects of combining the antineoplastic drug 5-fluorouracil (5-FU) with Matricaria recutita flowers extract (MRFE) to treat mice transplanted with sarcoma 180. Tumor inhibition, body and visceral mass variation, biochemical, hematological, and histopathological parameters were evaluated. The isolated 5-FU, 5-FU+MRFE 100 mg/kg/day, and 5-FU+MRFE 200 mg/kg/day reduced tumor growth; however, 5-FU+MRFE 200 mg/kg/day showed a more significant tumor reduction when compared to 5-FU alone. These results corroborated with the analysis of the tumor histopathological and immunodetection of the Ki67 antigen. In the toxicological analysis of the association 5-FU+MRFE 200 mg/kg/day, an intense loss of body mass was observed, possibly as a result of diarrhea. In addition, spleen atrophy, with a reduction in white pulp, leukopenia and thrombocytopenia, was observed in the 5-FU groups alone and associated with MRFE 200 mg/kg/day; however, there was no statistical difference between these groups. Therefore, the MRFE 200 mg/kg/day did not interfere in myelosuppressive action of 5-FU. In hematological analysis, body and visceral mass variation and biochemical parameters related to renal (urea and creatinine) and cardiac (CK-MB) function, no alteration was observed. In biochemical parameters related to liver function enzymes, there was a reduction in aspartate transaminase (AST) values in the 5-FU groups alone and associated with MRFE 200 mg/kg/day; however, there was no statistical difference between these groups. Therefore, the MRFE 200 mg/kg/day does not appear to influence enzyme reduction. The results of this study suggest that the association between the 5-FU+MRFE 200 can positively interfere with the antitumor activity, promoting the antineoplastic-induced reduction in body mass, while minimizing the toxicity of chemotherapy.

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Fermentation is an important tool in producing functional beverages through agro-industrial wastes, and medicinal and aromatic plants due to the specific content of bioactive molecules. Therefore, this study evaluated the contribution of Matricaria recutita (chamomile), Cymbopogon citratus (lemongrass), or Mentha piperita (peppermint) extracts to the phytochemical profile and potential biological effects of a functional fermented orange beverage in vitro and in silico. The concentrations of aromatic herbal extracts that yielded the best sensory performance for fermented beverages were selected for analyses that involved characterizing the fermented beverages. The beverages that received the extracts (2%) had the highest phenolic and flavonoid content and antioxidant potential compared to the control. Hesperidin (124-130 mg L-1), narirutin (66-70 mg L-1), chlorogenic (11-16 mg L-1), caffeic (5.3-5.5 mg L-1), and ferulic (1-1.7 mg L-1) acids were found in the different formulations. The in silico analysis suggested that the evaluated compounds do not present a toxicity risk (mutagenicity, carcinogenicity, hepatotoxicity, and ability to penetrate the blood-brain barrier). Additionally, they can contribute to the biological effects of therapeutic importance, such as antioxidant, gastroprotective, and anti-ulcerative properties, and the Mentha piperita L. extract presented the greatest potential among the evaluated herbs for use in functional fermented beverages.

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AIM: To evaluate in vitro the antibacterial efficacy of Matricaria recutita (chamomile) essential oil at 50 and 75% against Porphyromonas gingivalis ATCC 33277 and Prevotella intermedia ATCC 25611 at 24 and 48 hours. MATERIAL AND METHODS: The sample consisted of 80 discs and Mueller-Hinton Agar, the medium chosen for the culture. To determine the bacterial sensitivity, discs were placed in each Petri dish with concentrations of essential oil at 50 and 75%, distilled water and 0.12% chlorhexidine. Subsequently, the inhibition halos were measured in millimeters at 24 and 48 hours after culture, with the Kirby-Bauer disk diffusion method. RESULTS: In groups treated with Porphyromonas gingivalis, measurements at 24 and 48 hours yielded 22.14 ± 2.61 and 22.63 ± 2.67 mm for 0.12% chlorhexidine, 18.90 ± 0.41 and 19.22 ± 0.54 mm for 75% essential oil, and 15.55 ± 0.45 and 15.77 ± 0.46 mm for 50% essential oil, respectively. No statistically significant differences were observed among the groups (p > 0.05). CONCLUSION: No significant differences were found between the antibacterial efficacy of 0.12% chlorhexidine and 50 and 75% essential oil of Matricaria recutita on Porphyromonas gingivalis and Prevotella intermedia at 24 and 48 hours. CLINICAL SIGNIFICANCE: The study demonstrates that essential oil derived from Matricaria recutita may effectively combat bacteria associated with periodontal disease. This discovery has the potential to impact dental practice by introducing a natural treatment option. Further research is warranted to fully elucidate the clinical significance and potential applications of this finding.

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Abstract The search for treatments that accelerate the healing of lesions is of constant interest. Matricaria recutita (chamomile) is a plant with antimicrobial, anti-inflammatory, and healing properties, and antimicrobial Photodynamic Therapy (aPDT) eradicates microorganisms, which favors tissue repair. Objective This study aimed to evaluate the effect of the topical use of chamomile with or without aPDT on tissue repair in rats' tongues. Methodology A total of 75 male Wistar rats underwent standardized ulceration on the dorsum of the tongue using a punch of 5 mm diameter and were randomly allocated into the following groups: control (G1), chamomile fluid extract (G2), chamomile infusion (G3), aPDT (G4), and chamomile infusion + aPDT (G5). On the 3rd, 7th, and 14th days postoperatively, euthanasia was performed, and the ulcers were measured using calipers. The presence of edema, inflammatory infiltrate, cellularity, re-epithelialization, and characterization of total collagen were evaluated using sections stained with Hematoxylin and Eosin and Red Sirius. Histomorphometry analyses of the percentage of total collagen, the distance from the basal layer to the epithelial surface, and the thickness of the stratum corneum were performed. Descriptive (absolute/relative frequencies and modes) and exploratory analyses were performed. The associations between the groups and the presence of ulcers were analyzed with Fisher's exact test. All analyses were performed using the R program and statistical significance was set at p=0.05. Results The G2 positively modulated the exudative and proliferative phases of repair, both clinically (p<0.0001) and histologically, whether in descriptive or inferential analyses (p<0.05). The G3 showed a significant difference in clinical parameters compared with G1 (p<0.0001). The G4 and G5 did not positively modulate tissue repair. Conclusion The chamomile fluid extract showed better outcomes for tissue repair in the rat tongue.

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Introducción: Debido al consumo indiscriminado de fármacos, muchas bacterias han comenzado a mostrar resistencia. No obstante, cada vez hay más investigaciones que buscan soluciones a este problema, y para lograrlo indagan en los beneficios médicos de determinadas plantas sobre la cavidad oral y su menor efecto tóxico. El 10 % de las plantas a nivel mundial se usan con fines medicinales. El Instituto Nacional de Cáncer indica que el 67 por ciento de los fármacos tiene su origen en la naturaleza, y el 25 % derivan de las plantas. Objetivo: Determinar el efecto inhibitorio del crecimiento in vitro de los extractos de Plantago major, Eucalyptus globulus y Matricaria chamomilla a diferentes concentraciones (100 por ciento, 50 por ciento, 25 por ciento y 12,5 por ciento) sobre cepas de Streptococcus mutans (ATCC 25175). Métodos: Estudio cuasiexperimental, in vitro, longitudinal y prospectivo. El universo estuvo formado por las cepas Streptococcus mutans, y la población por las cepas de Streptococcus mutans (ATCC 25175). El tamaño de la muestra se basó en el método estandarizado del CLSI. La muestra fueron 10 discos por extracto, embebidos con 50 uL., colocados sobre agar Mueller Hinton con sembrado de Streptococcus mutans (ATCC 25175). Se realizaron las medidas de los halos de inhibición a las 24 horas. Se usaron pruebas paramétricas de análisis de varianza y la prueba Tukey. Resultados: El halo inhibitorio promedio de la clorhexidina al 0,12 por ciento fue de 12,76 mm (p = 0,006). El extracto de "eucalipto" al 25 por ciento presentó diferencias significativas respecto a los otros grupos (p = 0,040), al 50 por ciento (p = 0,002) y al 100 por ciento (p = 0,000). Conclusiones: El extracto hidroalcohólico de Eucalyptus globulus al 100 por ciento presentó efecto inhibitorio frente al Streptococcus mutans (ATCC 25175) in vitro(AU)

Introduction: Due to the indiscriminate consumption of drugs, many bacteria have begun to show resistance. However, there is more and more research that seeks solutions to this problem, and to achieve this they investigate the medical benefits of certain plants on the oral cavity and its less toxic effect. 10 percent of the world's plants are used for medicinal purposes. The National Cancer Institute indicates that 67 percent of drugs originate in nature, and 25% are derived from plants. Objective: Determine the inhibitory effect of in vitro growth of the extracts of Plantago major, Eucalyptus globulus and Matricaria chamomilla at different concentrations (100 percent, 50 percent, 25 percent and 12.5 percent) on strains of Streptococcus mutans (ATCC 25175). Methods: Quasiexperimental, in vitro, longitudinal and prospective study. The universe was formed by the strains Streptococcus mutans, and the population by the strains of Streptococcus mutans (ATCC 25175). The sample size was based on the standardized CLSI method. The sample was 10 discs per extract, embedded with 50 uL., placed on Mueller Hinton agar with Streptococcus mutans seeding (ATCC 25175). Inhibition halos measurements were performed at 24 hours. Parametric analysis of variance tests and the Tukey test were used. Results: The average inhibitory halo of 0.12 percentchlorhexidine was 12.76 mm (p = 0.006). The extract of "eucalyptus" at 25 percent showed significant differences with respect to the other groups (p = 0.040), 50 percent (p = 0.002) and 100 percent (p = 0.000). Conclusions: The hydroalcoholic extract of Eucalyptus globulus at 100 percent presented inhibitory effect against Streptococcus mutans (ATCC 25175) in vitro(AU)

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The objective of this study was to evaluate the effect of topical chamomile in the prevention and/or treatment of oral mucositis (OM) in cancer patients. It was a systematic review, which sought articles of the randomized clinical trial according to the PRISMA parameters, registered in the PROSPERO. The databases used were PubMed, Cochrane Library, and Bireme. Descriptors were selected from DeCs/MeSH and the PICO strategy was applied. The search found 148 publications. After all the steps, six articles were selected. The total sample included 492 patients and all studies used the same OM measurement scale. The results showed that the application of topical chamomile was effective in the prevention and/or treatment of OM in four of the six studies, with a dose ranging from 1% to 2.5% and duration that ranged from single to 4 times a day. Some limitations were observed: the minimum age of the patients was not informed, and there was no specification of the sites involved or the chemotherapies used. The application of topical chamomile in the preventive/therapeutic of chemo-induced OM seems to be recommended. In addition, scientific production should be encouraged, as it aims to determine useful protocols for this phytotherapy for the oncology population.

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A utilização de plantas medicinais pelo homem é relatada desde a pré-história. Apesar dos avanços e criação de políticas voltadas para o uso de plantas medicinais, com a Política Nacional de Práticas Integrativas e Complementares no SUS- PNPIC que inclui a fitoterapia, a prevalência do uso das PICs no Brasil nas práticas de trabalho e ações nos serviços de saúde, ainda é baixa quando comparada a outros países. Dentre as plantas com uso medicinal tradicional no Brasil, Matricaria chamomilla, a Camomila, tem sido utilizada como tratamento de doenças gastrointestinais e alívio de sintomas digestivos. A revisão integrativa, teve como objetivo buscar evidências científicas da ação terapêutica gastrointestinal, do uso popular da camomila, através da busca de dados de fontes primárias com abordagem quantitativa, experimental e quase-experimental. Como resultados, foram encontrados dez estudos de cunho experimental (in vivo e in vitro) oriundos da Biblioteca virtual em saúde- BVS e PUBMED. Nenhum estudo clínico foi encontrado pela busca nos últimos dez anos. As doenças gastrointestinais investigadas foram: Diarreia/hiperperistaltismo, úlcera péptica, Gastrite atrófica e Câncer gástrico, inflamação e dor gástrica e atividade antibacteriana contra Helicobacter pylori e Campylobacter jejuni. Para a maioria das doenças investigadas a Camomila na forma de extrato ou seus componentes isolados (alfa-bisabolol e apigenina), apresentou resultados satisfatórios, sendo necessário que estudos clínicos em humanos, confirmem sua ação nas doenças gastrointestinais investigadas e ofereçam aos profissionais da atenção primária subsídios para orientação da utilização terapêutica da camomila. (AU)

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We assessed safety and potential efficacy of a chamomile gel compared with urea cream to prevent acute radiation dermatitis in head and neck cancer patients. We assessed safety and potential efficacy of the chamomile gel in escalating concentrations of 2.50%, 5.00% and 8.35% of chamomile. Concentration of 8.35% was chosen for a randomized trial comparing chamomile gel (8.35%) with urea cream (n = 24 per group), for potential efficacy to delay or prevent radiation dermatitis in these patients. Preliminary results demonstrate a delayed onset of dermatitis, with onset of Grade 2 dermatitis at 5.1 (1.3) weeks in the chamomile group and 4.5 (1.3) weeks in the urea group (effect size of 0.46). Itching, burning and hyperpigmentation were more frequently reported in the urea group. Results indicates a potential efficacy of the chamomile gel. Further studies are needed to confirm the effect of the chamomile gel in reducing or delaying the occurrence of radiation dermatitis.

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The objectives of the present work were to evaluate the in vivo antimethanogenic effects of Cymbopogon citratus (CC), Matricaria chamomilla (MC) and Cosmos bipinnatus (CB) on beef cattle fed a high in concentrate diet (forage-to-concentrate ratio [F:C] of 19.4:80.6), and the effects of increasing levels of CC (0%, 2%, 3%, and 4% of the daily DM intake (DMI)) on enteric CH4 emissions by beef cattle fed a ration low in concentrate (F:C ratio of 49.3:50.7). Two experiments were conducted to address the objectives. For the first experiment, eight Charolais × Brown Swiss steers distributed in a replicated 4 × 4 Latin square experimental design were used. Four treatments were evaluated: (1) control diet (CO), (2) CO + 365 g dry matter (DM)/d CB, (3) CO + 365 g DM/d MC, (4) CO + 100 g DM/d CC. For Experiment 2, four Charolais x Brown Swiss steers distributed in a single 4 × 4 Latin square design were used. It was concluded that 100 g DM per day CC and 365 g DM per day CB (Experiment 1) reduced CH4 yield of beef cattle. In Experiment 2, CC supplementation levels exceeding 2% of DMI reduced daily CH4 emissions but at the expense of decreasing digestibility of DM.

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Matricaria chamomilla L. has been used for centuries in many applications, including antiparasitic activity. Leishmaniasis is a parasitic disease, with limited treatments, due to high cost and toxicity. Thus, there is a need to develop new treatments, and in this context, natural products are targets of these researches. We report the development of chitosan nanocapsules containing essential oil of M. chamomilla (CEO) from oil-in-water emulsions using chitosan modified with tetradecyl chains as biocompatible shell material. The nanocapsules of CEO (NCEO) were analyzed by optical microscopy and dynamic light scattering, which revealed spherical shape and an average size of 800 nm. Successful encapsulation of CEO was further confirmed by fluorescence microscopy observations taking advantage of the autofluorescence properties of CEO. The encapsulation efficiency was around 90%. The entrapment of CEO reduced its cytotoxicity towards normal cells. On the other hand, the CEO was active against promastigotes and intracellular amastigotes, exhibiting IC50 of 3.33 µg/mL and 14.56 µg/mL, respectively, while NCEO showed IC50 for promastigotes of 7.18 µg/mL and for intracellular amastigotes of 14.29 µg/mL. These results demonstrate that encapsulation of CEO in nanocapsules using an alkylated chitosan biosurfactant as a "green" stabilizer is a promising therapeutic strategy to treat leishmaniasis.

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Arthur de Carvalho Drops® (ACD) is a traditional Brazilian herbal medicine used to treat functional gastrointestinal disorders (FGIDs). ACD is a formulation of herbal extracts from Matricaria recutita (chamomile), Foeniculum vulgare (fennel) and Gentiana lutea L. (gentian). Considering the popular use for FGIDs, the aim of this work was to investigate the ACD effect on gastric and intestinal parameters with emphasis in a mechanistic approach using isolated duodenal preparations of rodents. Analytical method was developed and validated for quantify three actives principles/markers (Apigenin-7-glucoside, gentiopicroside and anethole) in ACD. The treatment with ACD significantly reduced the emetogenic stimuli induced by cisplatin in rats, showed a laxative effect, reduced the bethanechol-enhanced gastrointestinal transit and completely reversed the contraction induced by carbachol in rat duodenum. However, ACD did not alter the secretory gastric volume or total gastric acidity. The ACD affect the contractions of duodenal smooth muscle mediated by Ca2+ channels and it is also able to inhibit the contractile response mediated by the release from its intracellular store. Furthermore, the relaxant effects of ACD appear independent of the nitric oxide pathway in rat duodenum. These results suggest that ACD could be beneficial for the treatment of disorders of the gastrointestinal tract.

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RESUMEN La carencia de una regulación sobre las plantas medicinales y el escaso control de calidad dado en Costa Rica ponen en riesgo la salud de la población. El objetivo del presente trabajo fue determinar la presencia de adulterantes en manzanilla (Matricaria chamomilla) y juanilama (Lippia alba) de venta a granel en mercados de San José, Heredia y Cartago, Costa Rica. Se recolectaron muestras de manzanilla y juanilama en diferentes puntos de venta dentro de los mercados de Cartago, Heredia y San José. Las muestras se analizaron en fresco y a través de los criterios establecidos por la OMS, para el control de calidad de productos herbarios, se estableció la cuantificación de materiales ajenos al producto comerciado como: insectos, mezclas de minerales del suelo, plástico, vidrio y moho. Los resultados fueron analizados con Excel 2010 y el programa estadístico IBM SPSS 22. En mercados de Heredia y San José se venden productos que no corresponden a la especie terapéutica ofrecida. La manzanilla es vendida principalmente en condiciones frescas, mientras que la juanilama varía su condición dependiendo del mercado. Hubo presencia de adulterantes, como insectos, tierra, plásticos y mohos, en las plantas de manzanilla y juanilama de venta en las provincias de Cartago, Heredia y San José.

SUMMARY The lack of regulation and quality control in Costa Rica on the medicinal plants has risks in public health. The aim of these work was to determinate presence of contaminants in chamomile (Matricaria chamomilla) and juanilama (Lippia alba) commercialized in the municipal markets in San José, Heredia and Cartago, Costa Rica. They were collected samples of chamomile and juanilama in different sale points within the Cartago, Heredia and San José markets. The samples were analyzed fresh and through the criteria established by WHO; for the quality control of herbal products, the quantification of materials foreign to the traded product was established: insects, mixtures of soil minerals, plastic, glass and mold. The results were analyzed with the statistical program SPSS 22. In some markets of Heredia and San José products do not correspond to the therapeutic species offered, and they were sold. Chamomile is sold mainly in fresh conditions, while the juanilama varies its condition depending on the market. There was presence of adulterants, such as insects, soil, plastics and molds, in plants chamomile and juanilama sold in the provinces of Cartago, Heredia and San José.

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Skin diseases have a notable impact on the life of the affected and in their health conditions. In order to allow a more effective and economical treatment for such disorders, new therapeutic approaches have been continuously investigated. Due to its high therapeutic and phytochemical potential, Matricaria species emerges as a pleasant alternative, since it is an important source of bioactive secondary metabolites suitable for the treatment of varied skin diseases. Therefore, this review aimed to catalog inventions that have used Matricaria species as the active component for skin disease treatment in order to assess the status of the technological development of the fitomedicines. For this, a search of patents was performed in four specialized patent database, which have reported the discovery of pharmaceutical bioproducts that used Matricaria species in its composition for skin treatment. Therefore, it is possible to notice that the pharmaceutical industry has driven efforts and investment to produce medicines for the dermatopathies, using species of this genus as an active principle. Besides, a trend of growth has been identified for the last years, which is accompanied by the continuous publication of scientific articles on the subject. It is known that a long journey is traversed between the scientific findings and their applications in the pharmaceutical market, creating the perspective that new Matricaria-based medicines may reach the pharmaceutical market in the coming years.

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RESUMEN Fundamento: existe una gama de productos naturales, dentro de los que están los fitoterapéuticos, donde se destaca la manzanilla para tratar la enfermedad periodontal inflamatoria debido a la acción antiinflamatoria, cicatrizante, antialérgica, analgésica, antiséptica y bacteriostática que esta planta posee. Se ha demostrado que la manzanilla actúa también sobre la placa dentobacteriana, principal factor de riesgo de la enfermedad periodontal y es utilizada para el tratamiento de procesos agudos y crónicos periodontales. Objetivo: establecer las bases científicas del empleo de la manzanilla en el tratamiento de las enfermedades periodontales. Métodos: la búsqueda de la información se realizó en un periodo de seis meses y se emplearon las siguientes palabras: manzanilla, matricaria recutita; a partir de la información obtenida se realizó una revisión bibliográfica de un total de 150 artículos publicados en las bases de datos PubMed, Hinari, SciELO y Medline mediante el gestor de búsqueda y administrador de referencias EndNote, de ellos se utilizaron 52 citas seleccionadas para realizar la revisión, 40 de ellas de los últimos cinco años. Resultados: la manzanilla es nativa en muchos países de Europa, y se cultivan en países como Alemania, Egipto, Francia, España, Italia, Marruecos, y en partes de Europa del Este. Las diversas plantas de manzanilla son muy distintas y requieren su propio conjunto de condiciones para crecer. Sus propiedades, acciones terapéuticas y principios activos varían de una especie a otra. Conclusiones: la Matricaria chamomilla y la Phania matricarioides son de probada eficacia terapéutica en el tratamiento de enfermedades periodontales agudas y crónicas.

ABSTRACT Background: there is a range of natural products, including phytotherapeutic, which highlights the chamomile to treat inflammatory periodontal disease due to the anti-inflammatory, healing, antiallergic, analgesic, antiseptic and bacteriostatic that this plant possesses. It has been shown that chamomile also acts on dentobacterial plaque, the main risk factor for periodontal disease and is used for the treatment of acute and chronic periodontal processes. Objective: to establish the scientific basis of the use of chamomile in the treatment of periodontal diseases. Methods: the search of the information was carried out in a period of six months and the following words were used: chamomile, matricaria recutita; Based on the information obtained, a bibliographic review was made of a total of 150 articles published in the PubMed, Hinari, SciELO and Medline databases by means of the search manager and the EndNote reference manager. Of these, 52 selected citations were used to perform the review, 40 of them from the last five years. Results: Chamomile is native to many countries in Europe, and is grown in countries such as Germany, Egypt, France, Spain, Italy, Morocco, and in parts of Eastern Europe. The various chamomile plants are very different and require their own set of conditions to grow. Its properties, therapeutic actions and active principles vary from one species to another. Conclusions: Matricaria chamomilla and Phania matricarioides are of proven therapeutic efficacy in the treatment of acute and chronic periodontal diseases.

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The objective of the this research was to register the current popular therapeutic use of medicinal plants in the Tzotzil indigenous population, in The Highlands of Chiapas, Mexico. The data were collected from 59 informants (39% men, 61% women) between 20 and 86 years old, through a semi-structured questionnaire in the Tzotzil language. From the information collected, a total of 59 species of medicinal plants were registered, belonging to 55 genera and 37 botanical families. The families Asteraceae (with 6 species and UR=51), Lamiaceae (4, UR=37) and Lauraceae (4, UR=21), are were the most representative in the study area. The highest use value index (UVI) was reported for Matricaria chamomilla (UVI=0.42), Mentha sativa (UVI=0.36) and Ruta graveolens (UVI=0.31). According to the informant consensus factor (ICF), the main pathological categories treated are were of the reproductive system (ICF=0.80), respiratory infections (ICF=0.75) and diseases of the digestive system (ICF=0.70). The species reported and their diversity of uses satisfy the needs of families with socioeconomic deficiencies.

El objetivo de la esta investigación fue registrar el uso terapéutico popular actual de plantas medicinales en la población indígena Tzotzil, en Los Altos de Chiapas, México. Los datos fueron recolectados de 59 informantes (39% hombres, 61% mujeres) entre 20 y 86 años, a través de un cuestionario semiestructurado en el idioma Tzotzil. De la información recabada, se registraron un total de 59 especies de plantas medicinales, pertenecientes a 55 géneros y 37 familias botánicas. Las familias Asteraceae (con 6 especies y RU=51), Lamiaceae (4, RU=37) y Lauraceae (4, RU=21), son fueron las más representativas en el área de estudio. El índice de valor de uso más alto (IVU) se informó para Matricaria chamomilla (IVU=0.42), Mentha sativa (IVU=0.36) y Ruta graveolens (IVU=0.31). Según el factor de consenso del informante (FCI), las principales categorías patológicas tratadas son fueron del sistema reproductivo (ICF=0.80), las infecciones respiratorias (ICF=0.75) y las enfermedades del sistema digestivo (ICF=0.70). Las especies reportadas y su diversidad de usos satisfacen las necesidades de las familias con deficiencias socioeconómicas.

Assuntos

RESUMO

ABSTRACT Objective: This research study aimed at evaluating the inhibitory activity of Matricaria recutira (chamomile) hydroalcoholic extract on Candida albicans and Enterobacter cloacae biofilms. Methods: C. albicans and E. cloacae biofilms with thirty-hour formation were submitted, for five minutes, to 100, 200 and 300 mg / mL of M. recutita hydroalcoholic extract, chlorhexidine digluconate 0.12% (Periogard® - inhibition control) or sterile distilled water (growth control). Subsequently, they were washed and divided into two groups to determine the microbial viability: G/UFC - counting of colony forming units (cfu) in agar and G/DNA - quantification of viable DNA with violet crystal dye by spectrophotometry. Results: M. recutita extract at 300 mg/mL reduced significantly (p <0.01) the E. cloacae cfu/mL number in biofilm with results similar to chlorhexidine 0.12%, while extracts at 100 and 200 mg/mL did not have the same effectiveness. The amount of E. cloacae viable DNA was reduced (p <0.05) in all the M. recutita extract concentrations and chlorhexidine. There was no significant difference (p = 0.565) in the cfu/mL number or in the amount of viable DNA (p = 0.8094) in C. albicans biofilm when compared to untreated biofilm (control) or, even, between the extracts when compared to each other or to chlorhexidine 0.12%. Conclusion: 300 mg/mL M. recutita extract reduced significantly the E. cloacae biofilm but not the C. albicans, both with a similar result to chlorhexidine 0.12% (Periogar®).

RESUMO Objetivo: Avaliar a atividade inibitória do extrato hidroalcoólico de Matricaria recutira (camomila) sobre biofilme de Candida albicans e Enterobacter cloacae. Métodos: Biofilmes de C. albicans e E. cloacae com trinta horas de formação foram submetidos por cinco minutos a 100, 200 e 300 mg/mL de extrato hidroalcoólico de M. recutita, digluconato de clorexidina 0,12% (Periogard® - controle de inibição) ou água destilada esterilizada (controle do crescimento). Depois foram lavados e divididos em dois grupos para determinação da viabilidade microbiana: G1 - contagem de unidades formadoras de colônia (ufc) em ágar e G2 - quantificação de DNA viável com corante cristal violeta por espectrofotometria. Resultados: O extrato de M. recutita a 300 mg/mL reduziu significativamente (p < 0,01) o número de ufc/mL de E. cloacae em biofilme com resultados semelhantes a clorexidina 0,12%, enquanto os extratos a 100 e 200 mg/mL não tiveram a mesma efetividade. Já a quantidade de DNA viável de E. cloacae foi reduzida (p < 0,05) em todas as concentrações do extrato de M. recutita testadas e clorexidina. Não houve diferença significativa (p=0,565) no número de ufc/mL ou na quantidade de DNA viável (p=0,8094) no biofilme de C. albicans quando comparado ao biofilme sem tratamento (controle) ou mesmo entre as concentrações do extrato quando comparados entre si ou com a clorexidina 0,12%. Conclusão: O extrato de M. recutita 300 mg/mL reduziu significativamente o biofilme de E. cloacae mas não de C. albicans, ambos com resultado semelhante à clorexidina 0,12% (Periogar®).