RESUMO
Problem: The coronavirus disease 2019 (COVID-19) pandemic posed a major workforce challenge to Brazil, which has a large land area and a shortage of health workers in regions distant from the big cities. Approach: The Brazilian health ministry implemented a computerized solution to provide rapid support to states and municipalities to hire health professionals from large urban centres to work in underserved areas during the COVID-19 pandemic. We designed an online system for health professionals to register their willingness to work on the COVID-19 response; the system was launched to the public in April 2020. Local setting: Brazil is a large country with great heterogeneity in access to health care across its different regions. Before the initiative was launched, 5 156 020 health professionals were officially registered with professional councils. However, an estimated 3 200 000, more than 60% of them, were working in the two regions with the highest standard of living. Relevant changes: Up to February 2022, 1 007 138 health professionals had self-registered on the system, providing a sizeable database of professionals from a range of disciplines. Of these, 371 275 professionals were willing to work on the COVID-19 response in remote areas. By 1 February 2022, 157 755 professionals have been trained and deployed to these underserved areas. Lessons learnt: Partnership of the government with professional councils and the use of official communication channels were important strategies to improve registration and ensure the success of the scheme. We predict that the database will assist with future public health campaigns in Brazil.
Assuntos
COVID-19 , Brasil/epidemiologia , COVID-19/epidemiologia , Pessoal de Saúde , Humanos , Pandemias , Recursos HumanosRESUMO
The inflammatory response is a common feature of many pathological conditions, and there is urgent necessity for new substances that minimize the harmful effects of inflammation. Chromenes represent a class of compounds with multiple pharmacological actions that have already been described and may be potential candidates for studies of therapeutic action. This study aimed to test novel 4-aryl-4H-chromene-derived molecules in an in vitro model of inflammation using lipopolysaccharide (LPS)-induced Raw 264.7 cells. Seven compounds derived from 4-aryl-4H-chromene were tested on Raw 264.7 cells to evaluate their cytotoxic effects. Next, the effect of the selected compounds on the pro-inflammatory mediators (tumor necrosis factor-alpha [TNF-α], monocyte chemoattractant protein-1 [MCP-1], interleukin [IL]-6) and on the anti-inflammatory mediators (IL-10 and IL-13) was analyzed, and finally, the effect of the compounds on macrophage apoptosis and expression of surface receptors (toll-like receptor 4 [TLR-4] and mannose) was evaluated. The results of this study demonstrated that changes in the molecular structure of 4-aryl-4H-chromene altered its cytotoxic profile. Therefore, derivatives that showed safe results were selected for further analyses (named compounds: 4-6). In these experiments, the compounds were able to decrease nitric oxide (NO) levels and production of MCP-1, IL-6, IL-10, and IL-13. Furthermore, these derivatives were effective in reducing macrophage apoptosis and the expression of surface receptors, as TLR-4/CD284. Moreover, compounds 5 and 6 also were effective in increasing mannose receptor (CD206) expression. The results indicate, for the first time to our knowledge, that the anti-inflammatory effect produced by chromenes is linked to macrophage repolarization (M1 to M2).
Assuntos
Anti-Inflamatórios , Benzopiranos , Macrófagos , Anti-Inflamatórios/farmacologia , Benzopiranos/farmacologia , Inflamação/metabolismo , Interleucina-10/metabolismo , Interleucina-13/metabolismo , Interleucina-6/metabolismo , Lipopolissacarídeos , Macrófagos/efeitos dos fármacos , Receptor 4 Toll-Like , Animais , Camundongos , Células RAW 264.7RESUMO
The inflammatory process is a mammalian physiological reaction against infectious agents or injuries. Among the cells involved, the macrophages have a highlighted role during this process. Depending on the inflammatory context, they can polarize into pro- or anti-inflammatory profiles (M1 and M2). In this context, compounds derived from cinnamic acid have demonstrated strong evidence of anti-inflammatory activity; however, the mechanism responsible for this effect remains unclear. In this study, we investigated the anti-inflammatory activity of five cinnamate-derived dienes of synthetic origin. The compounds that did not demonstrate significant cytotoxicity were tested to assess anti-inflammatory activity (NOx ) in RAW 264.7 cells stimulated with LPS. Then, the selected compound (diene 1) was evaluated as to its ability to inhibit the secretion of pro-inflammatory cytokines (IL-1ß, TNF-α, INF-γ, MCP-1, and IL-6) and increase the production of anti-inflammatory cytokines (IL-13, IL-4, and IL-10). Finally, diene 1 was able to reduce the expression of TLR4 and increase the phagocytic activity of the macrophages. Gathering these results together, we conclude that diene 1 showed an important anti-inflammatory effect, and this effect is linked to its immunomodulatory characteristic. Since the M1 markers were reduced at the same time, M2 markers were increased by the treatment of the macrophages with diene 1.
Assuntos
Anti-Inflamatórios , Macrófagos , Animais , Anti-Inflamatórios/farmacologia , Cinamatos/metabolismo , Cinamatos/farmacologia , Citocinas/metabolismo , Lipopolissacarídeos/farmacologia , Mamíferos/metabolismo , Camundongos , Células RAW 264.7RESUMO
Macrophages are critical in both tissue homeostasis and inflammation, and shifts in their polarization have been indicated as pivotal for the resolution of inflammatory processes. Inflammation is a complex and necessary component of the immune response to stimuli that are harmful to host homeostasis and is regulated by cellular and molecular events that remain a source of ongoing investigation. Among the compounds studied that have potential against autoimmune and inflammatory diseases, cannabinoids are currently highlighted. In this work, nineteen aryl-cyclohexanones diesters and their derivatives were synthesized based on the aryl-cyclohexane skeleton of phytocannabinoids, such as cannabidiol (CBD), and were evaluated for their anti-inflammatory and macrophage polarization potential. The results showed that Compound 4 inhibited the production of nitric oxide in RAW 264.7 macrophages. Furthermore, it reduced the levels of pro-inflammatory cytokines IL-12p70, TNF-α, IFN-γ, MCP-1, and IL-6 while, at the same time, was able to increase the production of anti-inflammatory cytokines IL-4, IL-10, and IL-13. Compound 4 also reduced macrophage apoptosis, increased the expression of the CD206 (mannose receptor) and at the same time, decreased the expression of CD284 (TLR-4 receptor) on the surface of these cells. Finally, it increased the phagocytic capacity and inhibited the phosphorylation of the p65 of NF-kß. In conclusion, Compound 4, identified as diethyl-4-hydroxy-2-(4-methoxyphenyl)-4-methyl-6-oxocyclohexane-1-3-dicarboxylate, showed significant anti-inflammatory effect, while demonstrating the ability to transform phenotypically macrophages from the M1 phenotype (pro-inflammatory) to the M2 phenotype (anti-inflammatory). This led us to hypothesize that the main mechanism of anti-inflammatory effect of this molecule is linked to its immune modulation capacity.
Assuntos
Cicloexanonas , Macrófagos , Anti-Inflamatórios/metabolismo , Anti-Inflamatórios/farmacologia , Cicloexanonas/metabolismo , Cicloexanonas/farmacologia , Citocinas/metabolismo , Humanos , Inflamação/metabolismo , Macrófagos/metabolismoRESUMO
BACKGROUND: Citrus fruits are a rich source of valuable molecules, and their industrial processing produces bagasses, little explored to generate important by-products. These Citrus residues, including seeds and peels, also contain numerous pharmacologically important substances. To reduce the impact of these Citrus by-products, young, harvested fruits could be used as a functional supplemental food while another part is grown until maturity for industrial production. This study therefore aims to valorize rangpur (Citrus limonia) in the first 3 months of its growth by investigating and comparing its monthly chemical profiles using ultra-performance liquid chromatography-electrospray mass spectrometry (UPLC-ESI-MS) and its anti-inflammatory and antiplatelet activity. RESULTS: Extracts obtained from the fruits harvested in November, December, and January, 2017 and 2018 (L221117, L161217, and L160118) showed different UPLC-ESI-MS profiles. Twenty-five of the 26 detected metabolites were identified as cyclitol, pyrrolidine betaine, aryl propanoyl esters, chlorogenic acids, flavonoids, coumarins, and limonoids. Quantification studies indicated an increased concentration of hesperidin from the younger fruits to the older fruits of the series. L160118 reduced nitrogen oxide (NOx), tumor necrosis factor alpha (TNF-α), and interleukin 6 (IL-6) levels more than other extracts. Their activity followed the same trends as the hesperidin concentration in each fruit. In contrast, the most promising antiplatelet activity was observed with the extracts from the two youngest fruits. This suggests combined effects of the chemical components found in these fruits' extracts. CONCLUSION: The extracts obtained from these young fruits showed considerable anti-inflammatory and antiplatelet activity. Overall, young rangpur could be used as raw material to produce functional foods without producing any waste. © 2022 Society of Chemical Industry.
Assuntos
Citrus , Hesperidina , Anti-Inflamatórios/análise , Anti-Inflamatórios/farmacologia , Cromatografia Líquida de Alta Pressão/métodos , Cromatografia Líquida , Citrus/química , Frutas/química , Hesperidina/farmacologia , Extratos Vegetais/química , Espectrometria de Massas por Ionização por Electrospray/métodosRESUMO
BACKGROUND: COVID-19 is still causing long-term health consequences, mass deaths, and collapsing healthcare systems around the world. There are no efficient drugs for its treatment. However, previous studies revealed that SARS-CoV-2 and SARS-CoV have 96% and 86.5% similarities in cysteine proteases (3CLpro) and papain-like protease (PLpro) sequences, respectively. This resemblance could be important in the search for drug candidates with antiviral effects against SARS-CoV-2. OBJECTIVE: This paper is a compilation of natural products that inhibit SARS-CoV 3CLpro and PLpro and, concomitantly, reduce inflammation and/or modulate the immune system as a perspective strategy for COVID-19 drug discovery. It also presents in silico studies performed on these selected natural products using SARS-CoV-2 3CLpro and PLpro as targets to propose a list of hit compounds. METHODS: The plant metabolites were selected in the literature based on their biological activities on SARS-CoV proteins, inflammatory mediators, and immune response. The consensus docking analysis was performed using four different packages. RESULTS: Seventy-nine compounds reported in the literature with inhibitory effects on SARS-CoV proteins were reported as anti-inflammatory agents. Fourteen of them showed immunomodulatory effects in previous studies. Five and six of these compounds showed significant in silico consensus as drug candidates that can inhibit PLpro and 3CLpro, respectively. Our findings corroborated recent results reported on anti-SARS-CoV-2 in the literature. CONCLUSION: This study revealed that amentoflavone, rubranoside B, savinin, psoralidin, hirsutenone, and papyriflavonol A are good drug candidates for the search of antibiotics against COVID-19.
Assuntos
Produtos Biológicos , Tratamento Farmacológico da COVID-19 , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/uso terapêutico , Antivirais/farmacologia , Antivirais/uso terapêutico , Produtos Biológicos/farmacologia , Produtos Biológicos/uso terapêutico , Descoberta de Drogas , Humanos , Imunidade , Simulação de Acoplamento Molecular , Inibidores de Proteases/farmacologia , Inibidores de Proteases/uso terapêutico , SARS-CoV-2RESUMO
CONTEXT: Migraine is a headache of variable intensity that is associated with focal and systemic symptoms. A ketogenic diet (KD), a very-low-carbohydrate diet with a proportional increase in fat, causes brain metabolic alterations, which could be beneficial for some neurologic conditions. OBJECTIVE: A systematic review was conducted to assess the efficacy and tolerability of KD in preventing migraine in adolescents and adults. DATA SOURCES: The Preferred Reporting Items for Systematic Reviews and Meta-Analyses standard was used to review articles found in the PubMed, EMBASE, Scopus, Web of Science, LILACS, LIVIVO, Science Direct, and Cochrane Central Register of Controlled Trials databases. The Google Scholar, DOAJ, ProQuest, and OpenGrey databases were included. DATA EXTRACTION: The population, intervention, comparison, outcome, and study design strategy included assessing the quality of the evidence using Grading of Recommendations Assessment Development and Evaluation and the risk of bias after applying the JBI critical appraisal tools. DATA ANALYSIS: Most of the 10 selected studies reported that KD reduced the number and severity of migraine attacks in patients, with few reported adverse effects. The evidence on the effectiveness of the KD is low, so whether the final effect is due to the treatment remains inconclusive. CONCLUSIONS: This study represents an initial effort to systematize information on the efficacy and tolerability of KD and its variations in the prevention of migraine. SYSTEMATIC REVIEW REGISTRATION: PROSPERO registration no. CRD42020186253.
Assuntos
Dieta Cetogênica , Transtornos de Enxaqueca , Adolescente , Adulto , Dieta com Restrição de Carboidratos , Dieta Cetogênica/efeitos adversos , Humanos , Transtornos de Enxaqueca/prevenção & controle , Projetos de PesquisaRESUMO
Banana inflorescences are a byproduct of banana cultivation consumed in various regions of Brazil as a non-conventional food. This byproduct represents an alternative food supply that can contribute to the resolution of nutritional problems and hunger. This product is also used in Asia as a traditional remedy for the treatment of various illnesses such as bronchitis and dysentery. However, there is a lack of chemical and pharmacological data to support its consumption as a functional food. Therefore, this work aimed to study the anti-inflammatory action of Musa acuminata blossom by quantifying the cytokine levels (NOx, IL-1ß, TNF-α, and IL-6) in peritoneal neutrophils, and to study its antiparasitic activities using the intracellular forms of T. cruzi, L. amazonensis, and L. infantum. This work also aimed to establish the chemical profile of the inflorescence using UPLC-ESI-MS analysis. Flowers and the crude bract extracts were partitioned in dichloromethane and n-butanol to afford four fractions (FDCM, FNBU, BDCM, and BNBU). FDCM showed moderate trypanocidal activity and promising anti-inflammatory properties by inhibiting IL-1ß, TNF-α, and IL-6. BDCM significantly inhibited the secretion of TNF-α, while BNBU was active against IL-6 and NOx. LCMS data of these fractions revealed an unprecedented presence of arylpropanoid sucroses alongside flavonoids, triterpenes, benzofurans, stilbenes, and iridoids. The obtained results revealed that banana inflorescences could be used as an anti-inflammatory food ingredient to control inflammatory diseases.
Assuntos
1-Butanol/farmacologia , Anti-Inflamatórios/farmacologia , Cloreto de Metileno/farmacologia , Musa/química , Tripanossomicidas/farmacologia , 1-Butanol/química , Animais , Anti-Inflamatórios/química , Sobrevivência Celular/efeitos dos fármacos , Flores/química , Humanos , Interleucina-1beta/metabolismo , Interleucina-6/metabolismo , Leishmania/efeitos dos fármacos , Leishmania infantum/efeitos dos fármacos , Cloreto de Metileno/química , Camundongos , NADPH Oxidases/metabolismo , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Células THP-1 , Tripanossomicidas/química , Fator de Necrose Tumoral alfa/metabolismoRESUMO
BACKGROUND: Curry powder is a blend of spices that is extensively consumed worldwide and mainly in Central Asia. Its preparation is strictly related to each locality and, because of the health benefits of its constituents, eight commercial forms of this condiment were biologically and chemically investigated. This study aimed to compare their chemical profile as well as their anti-inflammatory, cytotoxic, and antiparasitic activities. RESULTS: Curry samples 1 and 7 inhibited leukocyte influx and myeloperoxidase activity, while only 7 was active on protein exudate and NOx species. 2, 6, and 8 displayed trypanocidal effect against Trypanosoma cruzi amastigote, whereas 6 showed antileishmanial activity on Leishmania amazonensis amastigote. 2, 6, and 8 also inhibited the growth of THP-1 cells used as the parasite's host. Among the cytotoxic samples (4 and 6), curry sample 6 induced apoptosis in MDA-MB-231 cells. Nevertheless, 4 and 6 were unselectively cytotoxic to non-tumoral and tumoral cells. The anti-inflammatory, cytotoxicity, and antiparasitic assays were respectively performed by carrageenan-induced pleurisy test, Alamar blue assay, and intracellular parasite-host cell model. Ultra-performance liquid chromatographic-electrospray ionization mass spectrometric data from the spices revealed both similar and different metabolites in their composition. CONCLUSION: The results obtained indicate that different formulations can contribute different health benefits as a result of their chemical composition. © 2018 Society of Chemical Industry.
Assuntos
Anti-Inflamatórios/química , Anti-Inflamatórios/farmacologia , Antiprotozoários/química , Antiprotozoários/farmacologia , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Especiarias/análise , Apoptose/efeitos dos fármacos , Linhagem Celular Tumoral , Sobrevivência Celular/efeitos dos fármacos , Cromatografia Líquida de Alta Pressão , Humanos , Leishmania/efeitos dos fármacos , Leishmania/crescimento & desenvolvimento , Pleurisia/tratamento farmacológico , Pleurisia/imunologia , Pós/química , Espectrometria de Massas por Ionização por Electrospray , Trypanosoma cruzi/efeitos dos fármacos , Trypanosoma cruzi/crescimento & desenvolvimentoRESUMO
Fragaria x ananassa Duch., popularly called strawberry, is known for its worldwide consumption and important biological activities, and these effects are related to its high concentration of anthocyanins. Pelargonidin-3-O-glucoside (P3G) is a major anthocyanin found in strawberry, and was evaluated for its anti-inflammatory action in experimental models. The effect of strawberry extract and P3G, on leukocyte migration, exudation levels and many inflammatory mediators, was therefore evaluated in an in vivo model. An in vitro study was also carried out to characterize the effect of P3G on mitogen-activated protein kinases, and on nuclear transcript factors NF-κB and AP-1. The results revealed that the strawberry and P3G have important anti-inflammatory proprieties, and the anti-inflammatory mechanism of P3G involves the arrest of IkB-α activation and reduction in JNKMAPK phosphorylation. The results reinforce that strawberry fruits are functional foods that can act as an adjuvant in the treatment of inflammatory conditions.
Assuntos
Antocianinas/farmacologia , Anti-Inflamatórios não Esteroides/farmacologia , Fragaria/química , Adenosina Desaminase/metabolismo , Animais , Anti-Inflamatórios não Esteroides/química , Movimento Celular/efeitos dos fármacos , Feminino , Frutas/química , Leucócitos/efeitos dos fármacos , Camundongos , Proteínas Quinases Ativadas por Mitógeno/metabolismo , NF-kappa B/metabolismo , Peroxidase/metabolismo , Fosforilação/efeitos dos fármacos , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Pleurisia/tratamento farmacológico , Fator de Transcrição AP-1/metabolismoRESUMO
UNLABELLED: This study was conducted to investigate the anti-inflammatory activity of Polygala molluginifolia (Polygalaceae) on the mouse pleurisy model induced by carrageenan. P. molluginifolia is a plant native to southern Brazil that is popularly called "canfora". The Polygala genus is used to treat different pathologies, including inflammatory diseases, in traditional medicine. MATERIAL AND METHODS: The whole P. molluginifolia plant material was extracted by maceration with 96% ethanol. The crude hydroalcoholic extract (CE) was subjected to chromatographic procedures to produce various derivate fractions, including its aqueous (Aq), ethyl acetate (EtOAc), and hexane (Hex) fractions. Compound 1 (5,3',4'-trihydroxy-6â³,6â³-dimethylpyrano [2â³,3â³:7,6] isoflavone) (Iso), which was isolated from the EtOAc fraction, and Compound 2 (rutin) (Rut), which was isolated from the Aq fraction, were identified using ¹H and ¹³C NMR spectroscopy and quantified using an HPLC apparatus. RESULTS: The CE, the Aq, EtOAc, and Hex fractions, and the isolated compounds Iso and Rut were able to reduce cell migration and exudation. Furthermore, the plant material also decreased the myeloperoxidase (MPO) and adenosine-deaminase (ADA) activities and the nitric oxide (NO(x)), tumor necrosis factor-alpha (TNF-α), and interleukin-1 beta (IL-1ß) levels. In addition, Iso and Rut reduced the TNF-α and IL-1ß mRNA expression levels and significantly decreased NF-κB p65 phosphorylation. CONCLUSION: The results show that P. molluginifolia has a significant anti-inflammatory action and that this effect is due, at least in part, to the presence of Iso and Rut in large amounts. Moreover, this effect was found to be closely related to the inhibitory effects of the isolated compounds on the NF-κB pathway.
Assuntos
Anti-Inflamatórios/uso terapêutico , NF-kappa B/antagonistas & inibidores , Extratos Vegetais/uso terapêutico , Pleurisia/tratamento farmacológico , Polygala , Adenosina Desaminase/metabolismo , Animais , Anti-Inflamatórios/farmacologia , Carragenina , Quimiotaxia de Leucócito/efeitos dos fármacos , Interleucina-1beta/genética , Interleucina-1beta/metabolismo , Contagem de Leucócitos , Camundongos , NF-kappa B/metabolismo , Óxido Nítrico/metabolismo , Peroxidase/metabolismo , Fitoterapia , Extratos Vegetais/farmacologia , Pleurisia/induzido quimicamente , Pleurisia/metabolismo , RNA Mensageiro/metabolismo , Fator de Necrose Tumoral alfa/genética , Fator de Necrose Tumoral alfa/metabolismoRESUMO
UNLABELLED: Reactive oxygen species (ROS) overgeneration is involved in the pathogenesis of hepatitis C. The aim of this study was to evaluate the antioxidant status in the blood of HCV infected patients treated or not with standard therapy before and after supplementation of vitamins E, C and zinc. Biomarkers of oxidative stress were evaluated in the blood of three groups of patients: group 1 - controls; group 2 - HCV patients without treatment examined before and after a daily antioxidant supplementation (vitamin E 800 mg, C 500 mg and zinc 40 mg) for 6 months; and group 3 - HCV patients treated with pegylated interferon combined with ribavirin, also examined before and after the same antioxidant supplementation. Before antiviral treatment HCV patients showed enhanced superoxide dismutase, catalase and glutathione peroxidase activities and decreased glutathione reductase activity, while lipoperoxidation was increased and reduced glutathione showed decreased levels compared to controls. Treatment with standard therapy enhanced the activities of catalase and glutathione S-transferase, increased contents of protein carbonyl and promoted further reduced glutathione depletion. After antioxidant supplementation, decreased catalase and glutathione S-transferase activities, decreased lipoperoxidation in group 2, and increased reduced glutathione contents in both supplemented groups were detected. Before antioxidant supplementation, alanine aminotransferase and gamma glutamyl transferase contents showed significant increases in group 2. CONCLUSION: Untreated HCV patients and also those treated with the standard therapy are coping with a systemic oxidative stress. The antioxidant supplementation conferred an antioxidant protection to both supplemented groups attenuating oxidation processes related to the disease.
Assuntos
Antioxidantes/uso terapêutico , Ácido Ascórbico/uso terapêutico , Hepatite C Crônica/tratamento farmacológico , Estresse Oxidativo/efeitos dos fármacos , Vitamina E/uso terapêutico , Zinco/uso terapêutico , Adulto , Alanina Transaminase/sangue , Antioxidantes/farmacologia , Antivirais/uso terapêutico , Ácido Ascórbico/farmacologia , Aspartato Aminotransferases/sangue , Catalase/sangue , Dieta , Feminino , Glutationa Redutase/sangue , Glutationa Transferase/sangue , Hepacivirus/genética , Hepacivirus/isolamento & purificação , Hepatite C Crônica/sangue , Humanos , Interferon alfa-2 , Interferon-alfa/uso terapêutico , Peroxidação de Lipídeos/efeitos dos fármacos , Masculino , Pessoa de Meia-Idade , Polietilenoglicóis/uso terapêutico , Proteínas Recombinantes/uso terapêutico , Ribavirina/uso terapêutico , Superóxido Dismutase/sangue , Vitamina E/farmacologia , Zinco/farmacologia , gama-Glutamiltransferase/sangueRESUMO
The essential oils of the leaves of Eugenia brasiliensis, Eugenia beaurepaireana, and Eugenia umbelliflora were analyzed by GC-MS. The major compounds found in the oil of E. brasiliensis were spathulenol (12.6%) and tau-cadinol (8.7%), of E. beaurepaireana were beta-caryophyllene (8.0%) and bicyclogermacrene (7.2%), and of E. umbelliflora were viridiflorol (17.7%) and beta-pinene (13.2%). These oils were assayed to determine their antibacterial activity against Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli. All of the oils analyzed showed antibacterial activity, ranging from moderate to strong, which was most accentuated for the E. umbelliflora and E. brasiliensis oils, which strongly inhibited the growth of S. aureus giving values of MIC = 119.2 and 156.2 microg/mL, respectively.
Assuntos
Antibacterianos/química , Antibacterianos/farmacologia , Bactérias/efeitos dos fármacos , Óleos Voláteis/química , Óleos Voláteis/farmacologia , Syzygium/química , Escherichia coli/efeitos dos fármacos , Testes de Sensibilidade Microbiana , Pseudomonas aeruginosa/efeitos dos fármacos , Staphylococcus aureus/efeitos dos fármacosRESUMO
Este trabalho procurou avaliar a taxa de isolamento de Mycoplasma hominis e Ureaplasma urealiticum/U. parvum emamostras de conteúdo vaginal de 84 mulheres atendidas em um laboratório de analises clínica de Blumenau SC, por dois meios de cultura de procedência diferentes. Os resultados demonstraram 50,0 % de positividade para Ureaplasma urealiticum/U. parvum e 20,24% de positividade para Micoplasma hominis por cultura em meio feito em nosso laboratório (P< 0,0001) e 16,67% de positividade para U. urealiticum e 8,33% de positividade para M. hominis por cultura em meio comercial (P< 0,0001). As amostras que foram cultivadas por meio próprio e obtiveram resultado positivo foram também analisadas por diluições seriadas para identificar a quantidadedestes microrganismos expresso em C.C.U. (color changing units). Os resultados demonstraram que 52,94% destas amostras apresentaram C.C.U. maior que 104 para M. hominis e 42,86% apresentaram C.C.U. maior que 103 para U. urealyticum, sendo estesos níveis considerados clinicamente significativos para que a presença destes microrganismos seja implicada na etiologia dos sintomas. No presente trabalho discutiu-se as possíveis causas desta diferença de positividade entre os dois métodos utilizados.