ABSTRACT
ETHNOPHARMACOLOGICAL RELEVANCE: Achyrocline alata is a locally marketed (Mato Grosso do Sul/ Brazil) herb used in folk medicine as an anti-inflammatory and a sedative. Evaluate the anti-inflammatory properties of Achyrocline alata in both in vivo and in vitro models. MATERIALS AND METHODS: A hydroethanolic extract from inflorescences of Achyrocline alata (HEAa) was characterized by HPLC-DAD and compared to standards (chlorogenic acid; isoquercetrin; quercetin; 4,2',4'-trihydroxy-6'-methoxychalcone; gnaphalin; 3-O-methyl-quercetin; 3,5-dicaffeoyl-quinic acid and 4,5-dicaffeoyl-quinic acid). The in vivo anti-inflammatory properties of the HEAa (4, 20 and 100 mg/kg, per os) were evaluated using the following animal models: carrageenan-induced paw edema in rats, carrageenan-induced vascular permeability and peritonitis in mice and an acetic acid-induced writhing model to test antihyperalgesic activity in mice. In vitro assays were performed to study the effects of the HEAa (0.16, 0.8 and 4 mg/ml) on the cell viability, cell spreading and production of NO and H2O2 in stimulated macrophages. RESULTS: The A. alata extract inhibited the development of edema and vascular permeability, reduced polymorphonuclear cell recruitment in the acute peritonitis assay and decreased the amount of writhing induced by acetic acid. The HEAa did not increase NO/H2O2 production, while it did inhibit production when the macrophages were stimulated by LPS or PMA at all tested concentrations. In the presence of HEAa, macrophage spreading did not increase even after stimulation with LPS. Additionally, the HEAa was nontoxic to macrophages at all tested concentrations. CONCLUSIONS: The HEAa displayed anti-inflammatory and antihyperalgesic effects, which supports the use of this plant in folk medicine. These effects might be due to the flavonoids and phenylpropanoids derivatives present in the HEAa.
Subject(s)
Achyrocline , Anti-Inflammatory Agents/therapeutic use , Edema/drug therapy , Peritonitis/drug therapy , Plant Extracts/therapeutic use , Animals , Anti-Inflammatory Agents/isolation & purification , Edema/pathology , Macrophages/drug effects , Macrophages/physiology , Male , Mice , Peritonitis/pathology , Plant Extracts/isolation & purification , Rats , Rats, WistarABSTRACT
OBJETIVO: Caracterizar as prescrições medicamentosas em unidade de terapia intensiva adulto em hospital universitário. MÉTODOS: Estudo unicêntrico, observacional, descritivo, transversal realizado em unidade de terapia intensiva adulto geral. A população foi constituída por todos os pacientes internados na unidade no período de janeiro a março de 2011. Foi verificada a presença dos seguintes itens na prescrição: nome do medicamento (genérico, comercial ou abreviatura), concentração, forma farmacêutica, posologia, via de administração, nome e registro do paciente na instituição, clínica e leito de internação, nome, número do conselho e assinatura do prescritor e data. Quantificou-se a porcentagem de medicamentos prescritos pertencentes à Relação Nacional de Medicamentos Essenciais, Lista de Medicamentos Essenciais da Organização Mundial da Saúde e Guia Farmacoterapêutico do Núcleo Hospital Universitário. Os medicamentos foram classificados com base no sistema Anatomical Therapeutic Chemical níveis 1 e 2. RESULTADOS: Foram analisadas 844 prescrições de 72 pacientes com média de idade de 59,04 ± 21,80, sendo 54,92% do gênero feminino. O número médio de prescrições por paciente foi 11,72 ± 11,68. O total de medicamentos prescritos foi de 12.052. Destes, 9.571(79,41%) foram prescritos pela denominação genérica. A forma farmacêutica foi a informação mais ausente na descrição dos medicamentos (8.829/73,26%). A concentração dos medicamentos foi descrita para 7.231 (60%) dos medicamentos. As informações sobre o prescritor e paciente estiveram presentes em mais de 96% das prescrições. Os medicamentos prescritos foram classificados em 13 grupos terapêuticos e 55 subgrupos. Entre os subgrupos mais prescritos, destacaram-se os antibacterianos de uso sistêmico. CONCLUSÃO: A maioria das informações analisadas esteve presente nas prescrições. Porém, dados sobre concentração e forma farmacêutica dos fármacos faltaram em grande parte das prescrições. A caracterização das mesmas nas diferentes unidades hospitalares é imprescindível para a elaboração de estratégias que visem minimizar os problemas relacionados ao uso de medicamentos.
OBJECTIVE:To characterize drug prescriptions in a university hospital adult intensive care unit. METHODS: Single-center, observational, descriptive, cross-sectional study conducted at an adult general intensive care unit. The study population included all of the unit's inpatients from January to March 2011. The following characteristics for all prescriptions recorded during this period were examined: drug name (generic, brand name or abbreviation), dosage strength, pharmaceutical form, dose, route of administration, patient name, patient registration in the institution, clinic and hospital bed as well as the name, board license number, signature of the prescriber and date of the prescription. It was quantified the percentage of prescribed drugs included in the National List of Essential Drugs, the World Health Organization Model List of Essential Medicines and the University Hospital Center Pharmacotherapy Guide. The prescribed drugs were classified based on the Anatomical Therapeutic Chemical classification system (levels 1 and 2). RESULTS: Eight hundred forty-four prescriptions were reviewed from 72 patients (mean age: 59.04 ± 21.80), 54.92% of whom were female. The mean number of prescriptions per patient was 11.72 ± 11.68. The total number of drugs prescribed was 12,052 and 9,571 (79.41%) of the drugs were prescribed using the generic name. The most frequent absent information in the drug description was the pharmaceutical form of the drug (8,829/73.26%). The dosage strength was indicated in 7,231 (60%) of the prescriptions, and the prescriber and patient information were indicated in over 96% of the prescriptions. The prescribed drugs were classified in 13 therapeutic groups and 55 subgroups. Systemic antibacterials represented one of the most frequently prescribed subgroups. CONCLUSION: Most of the reviewed information was present in the prescriptions. However, the dosage strength and pharmaceutical form were absent in many prescriptions. The characterization of prescriptions at different hospital units is essential for the development of strategies that reduce drug utilization problems.
ABSTRACT
OBJECTIVE: To characterize drug prescriptions in a university hospital adult intensive care unit. METHODS: Single-center, observational, descriptive, cross-sectional study conducted at an adult general intensive care unit. The study population included all of the unit's inpatients from January to March 2011. The following characteristics for all prescriptions recorded during this period were examined: drug name (generic, brand name or abbreviation), dosage strength, pharmaceutical form, dose, route of administration, patient name, patient registration in the institution, clinic and hospital bed as well as the name, board license number, signature of the prescriber and date of the prescription. It was quantified the percentage of prescribed drugs included in the National List of Essential Drugs, the World Health Organization Model List of Essential Medicines and the University Hospital Center Pharmacotherapy Guide. The prescribed drugs were classified based on the Anatomical Therapeutic Chemical classification system (levels 1 and 2). RESULTS: Eight hundred forty-four prescriptions were reviewed from 72 patients (mean age: 59.04 ± 21.80), 54.92% of whom were female. The mean number of prescriptions per patient was 11.72 ± 11.68. The total number of drugs prescribed was 12,052 and 9,571 (79.41%) of the drugs were prescribed using the generic name. The most frequent absent information in the drug description was the pharmaceutical form of the drug (8,829/73.26%). The dosage strength was indicated in 7,231 (60%) of the prescriptions, and the prescriber and patient information were indicated in over 96% of the prescriptions. The prescribed drugs were classified in 13 therapeutic groups and 55 subgroups. Systemic antibacterials represented one of the most frequently prescribed subgroups. CONCLUSION: Most of the reviewed information was present in the prescriptions. However, the dosage strength and pharmaceutical form were absent in many prescriptions. The characterization of prescriptions at different hospital units is essential for the development of strategies that reduce drug utilization problems.