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1.
J Ethnopharmacol ; 144(2): 408-15, 2012 Nov 21.
Artigo em Inglês | MEDLINE | ID: mdl-23026307

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Three important Anglo-Saxon medical texts from the 10th century contain herbal formulations for over 250 plant species, many of which have yet to be evaluated for their phytochemical and/or pharmacological properties. In this study, three native British plants were selected to determine antimicrobial activity relevant to treating bacterial infections and wounds. MATERIALS AND METHODS: Several preparations of Agrimonia eupatoria L., Arctium minus (Hill) Bernh. and Potentilla reptans L. were screened for antimicrobial activity against selected Gram-positive and Gram-negative bacteria of relevance in wounds using a 96 well plate microdilution method (200, 40 and 8µg/mL). Minimum inhibitory concentration (MIC) values were determined for the most potent extracts from 2 to 0.004mg/mL and HPLC chromatograms examined by multivariate analysis. Principle components analysis (PCA) was used to identify chemical differences between antimicrobial activity of the crude extracts. RESULTS: The HPLC-PCA score plots attributed HPLC peaks to the antimicrobial activity with all three plants inhibiting growth of Gram-positive Staphylococcus aureus by >50% in four or more extracts. The first two principal components (PC) represented 87% of the dataset variance. The P. reptans 75% ethanol root extract exhibited the greatest range of activity with MIC(50) at 31.25µg/mL to a total MIC that was also the minimum bactericidal concentration (MBC) at 1mg/mL. Additionally, the root of P. reptans, inhibited growth of Gram-negative bacteria with the 75% ethanol extract having a MIC(50) at 1mg/mL against Pseudomonas aeruginosa and the decoction a MIC(50) at 3.9µg/mL against Escherichia coli. CONCLUSIONS: The results indicate a moderate antimicrobial activity against common wound pathogens for P. reptans suggesting it may well have been effective for treating wound and bacterial infections. Anglo-Saxon literary heritage may provide a credible basis for researching new antimicrobial formulations. Our approach encompassing advanced analytical technologies and chemometric models paves the way for systematic investigation of Anglo-Saxon medical literature for further therapeutic indications to uncover knowledge of native British plants, some of which are currently lost to modern Western herbal medicine.


Assuntos
Agrimonia , Antibacterianos/farmacologia , Arctium , Medicina Tradicional , Extratos Vegetais/farmacologia , Potentilla , Bactérias/efeitos dos fármacos , Inglaterra , Testes de Sensibilidade Microbiana , Plantas Medicinais , Cicatrização
2.
Int J Palliat Nurs ; 18(2): 85-90, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-22399046

RESUMO

Fatigue and cachexia are common symptoms of advanced disease that have a significant impact on quality of life for palliative care clients. Management of cachexia and fatigue is often overlooked, but growing understanding of the multidimensional nature of fatigue and muscle wasting has led to interest in a model of care based on multimodal therapy that has been successfully implemented in specialized multidisciplinary hospital-based clinics in the oncology/palliative care setting. This article reports on an innovative incorporation of features of this model into a client-centred, interdisciplinary programme that aims to manage the effects of cachexia and fatigue and to improve quality of life for palliative care clients in their home setting. This Cachexia and Fatigue Management Programme (CFMP) involves the use of an anti-inflammatory agent, high protein intake, and an individually tailored resistance exercise regimen to counteract muscle wasting and fatigue. The article provides an overview of the role of multimodal therapies in the management of cachexia and fatigue before moving on to discuss the development of the CFMP, its features, and potential benefits for palliative care clients, caregivers, and health services.


Assuntos
Caquexia/terapia , Fadiga/terapia , Humanos , Austrália do Sul
3.
Drug Discov Today ; 16(23-24): 1069-75, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21782968

RESUMO

Three of the four major Anglo-Saxon collections reporting medicinal formulations in England from the 10th century, the Old English Herbarium, Bald's Leechbook and the Lacnunga, could contain leads and insights into new medicinal uses. Previous pharmacological studies of medicinal plants mentioned in Anglo-Saxon medical texts suggested that some were effective and led to the identification and isolation of natural compounds. For example, matricin from yarrow Achillea millefolium L., is a proprionic acid analogue that yields chamazulene carboxylic acid with cyclooxygenase-2 activity similar to that of ibuprofen. As we discuss here, multidisciplinary projects could further explore historical texts to discover additional plant metabolites with potential pharmacological applications.


Assuntos
Descoberta de Drogas/métodos , Farmacopeias como Assunto/história , Plantas Medicinais , Animais , Inglaterra , História Medieval , Humanos
4.
Australas J Dermatol ; 44(2): 144-8, 2003 May.
Artigo em Inglês | MEDLINE | ID: mdl-12752191

RESUMO

A pedigree of autosomal dominant expression of multiple benign adnexal tumours is presented. Seven cases spanning three generations are discussed. The clinical manifestations of these tumours are quite variable, including multiple papules concentrated on the face, scalp nodules and a large turban tumour. One member of the family had a linear papular eruption involving one half of his body. Histopathology of all lesions demonstrated benign adnexal characteristics, including well-characterized eccrine spiradenomas, trichoepitheliomas and an eccrine cylindroma. The cutaneous tumours occurring in these patients have continued to develop during their lifetimes. The authors propose that this pedigree has phenotypic characteristics consistent with Brooke-Spiegler syndrome.


Assuntos
Predisposição Genética para Doença , Neoplasias de Anexos e de Apêndices Cutâneos/genética , Neoplasias de Anexos e de Apêndices Cutâneos/patologia , Neoplasias Cutâneas/genética , Neoplasias Cutâneas/patologia , Adolescente , Adulto , Austrália , Biópsia por Agulha , Feminino , Seguimentos , Humanos , Imuno-Histoquímica , Masculino , Pessoa de Meia-Idade , Linhagem , Medição de Risco
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