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Preventative medicine ; 49(2-3): 83-87, Aug. 2009.
Artigo em Inglês | MedCarib | ID: med-17682


OBJECTIVE: Habitual green tea consumption has long been associated with health benefits including chemoprevention and cardiovascular protection. This non-systematic literature review presents the clinical evidence to date. METHOD: A literature review of peer-reviewed articles on observational and interventional studies was conducted to include green tea, its extract or its purified polyphenol (-)-epigallocatechin-3-gallate (EGCG). Electronic databases searched included PubMed (1966-2009) and the Cochrane Library (Issue 4, 2008). RESULTS: Observational studies are inconclusive on the benefits of habitual consumption of green tea in the prevention of most cancers. However, there are trends towards prevention in breast and prostate cancers. Interventional studies have demonstrated reduction in relapses following surgical resection in colorectal adenomas and increased survival rates in epithelial ovarian cancer. Observational studies indicate that green tea may provide protection against hypertension and reduce the risk for stroke, and interventional studies are providing biochemical and physiological evidence. CONCLUSION: Although the overall clinical evidence is inconclusive, habitual green tea consumption may be providing some level of chemoprevention in prostate and breast cancer. Green tea may also attenuate the risk factors association with the development of atherosclerosis thus reducing the incidence of cardiovascular events and stoke.

Humanos , Bebidas , Antioxidantes , Quimioprevenção , Sistema Cardiovascular , Trinidad e Tobago
West Indian Med. J ; 49(4): 331-6, Dec. 2000. tab
Artigo em Inglês | MedCarib | ID: med-452


We investigated the prevalence of the use of herbs among adults and children in Jamaica in 1996. Two concurrent surveys were conducted in randomly selected urban and rural area; among the adults and among caretakers of young children. From over 90 percent of the selected households, all caretakers of children under 6 years and one randomly selected adult (18 years or older) were interviewed using structured questionnaires. The 457 adults reportedly used 156 types of herbs: a mean of 6ñ3 (mean ñ standard deviation) by the urban adults, and 10ñ6 by the rural adults (t-test, p < 0.001). Almost 100 percent of respondents had at some time used herbs for teas or for treating illnesses. The most common methods of preparation was by infusion or boiling in water, then adding sugar. Urban respondents, women and those who were employed were more likely to buy medicines than to use herbal remedies. One hundred and sixty-seven caretakers of 203 children under 6 years were interviewed. The mean number of herbs given to each child was between 2 and 3. The most common herbs were introduced within the first 6 months of life. Many caretakers factors were associated with herbal use. Public health implications include the potential toxicity of some herbs, the possibilty that herbal teas given to young children may displace more nutritious foods and delay presentation to health care facilities. The findings will allow policy makers to target those most likely to use herbal preparations or to give them to young children, and target herbs to be analyzed for toxic or beneficial properties.(Au)

Adulto , Criança , Pré-Escolar , Lactente , Feminino , Humanos , Masculino , Adolescente , Bebidas/estatística & dados numéricos , Medicina Herbária , Bebidas/estatística & dados numéricos , Cuidadores/psicologia , Cuidadores/educação , Coleta de Dados , Jamaica , Prevalência , Inquéritos e Questionários , Distribuição Aleatória , Características de Residência , Fatores Socioeconômicos
J Agric Food Chem ; 47(10): 4038-45, Oct. 1999.
Artigo em Inglês | MedCarib | ID: med-741


Pure Valencia orange (Citrus sinensis) juices (64 samples) from Spain, Israel, Belize, Cuba, and Florida, harvested during two seasons (1996-1997 and 1997-1998), were analyzed for their carotenoid profiles. The detection of saponified carotenoid pigments has been achieved and quantified using a photodiode array detection monitored at 350, 430, and 486 nm. Carotenoid pigments commonly found in the orange variety Valencia have been separated on a polymeric C-30 column using a ternary gradient as eluent. Pure Valencia juices from oranges grown in the Mediterranean regions (Israel and Spain) have a high carotenoid content, expressed in beta-carotene (5-18 and 14-35 mg L(-)(1), respectively), compared to those grown in tropical and subtropical regions (Cuba, Belize, and Florida) (4-10, 2-8, and 5-10 mg L(-)(1), respectively). Quantitative results allowed the differentiation of Valencia variety geographical origins, in particular, the Mediterranean area from tropical and subtropical areas, using multidimensinal analyses of carotenoid contents. (AU)

Estudo Comparativo , Bebidas , Carotenoides/análise , Citrus/química , Citrus/normas , Belize , Cromatografia Líquida , Cor , Cuba , Florida , Israel , Espanha
Cajanus ; 31(4): 176-7, Dec. 1998.
Artigo em Inglês | MedCarib | ID: med-520

Cocos , Bebidas
Kingston; Caribbean Food and Nutrition Institute; 19981200. 1-3 p. (Nyam News, 1 & 2).
Monografia em Inglês | MedCarib | ID: med-18329


Undoubtedly, the best known region-wide favourite is sorrel, which is consumed in most countries including Cayman Islands, Trinidad and Tobago, Antigua, Barbados, St. Vincent and Guyana. Other favourites include ginger beer, Poncha creme, another version of egg nog is served in many countries including Trinidad and Tobago. Mauby will definitely be on the menu in St. Vincent while guava berry is a traditional Christmas drink of the British Virgin Islands

Humanos , Bebidas/análise , Bebidas/economia , Bebidas/história , Bebidas/normas
Perspect Biol Med ; 24(1): 1-14, Aut. 1980.
Artigo em Inglês | MedCarib | ID: med-9418


This article reviews the discovery of pyrrolizidine alkaloid poisoning in United States caused by the drinking of herbal tea and describes some of the difficulties involved in establishing a causal relationship between exposure to these alkaloids and the delayed appearance of toxic symptoms. In addition, some of the more general problems presented by the widespread use of herbs in various forms are addressed. First, however, a brief overview is given of the toxicity of this class of alkaloids. (AU)

Humanos , Lactente , Pré-Escolar , Pessoa de Meia-Idade , Masculino , Feminino , Bebidas/envenenamento , Medicina Herbária , Alcaloides de Pirrolizidina/envenenamento , Intoxicação por Plantas/epidemiologia , Contaminação de Alimentos , Jamaica , Hepatopatias/etiologia , Alcaloides de Pirrolizidina/administração & dosagem , Senécio