Óleos vegetais extraídos a frio comercializados na cidade de São Paulo: avaliação das características de identidade e qualidade e da ocorrência de hidrocarbonetos policíclicos aromáticos / Cold-pressed vegetable oils sold in São Paulo city characteristics of identity and quality evaluation and polycyclic aromatic hydrocarbons occurrence

O crescente mercado dos produtos naturais, fomentado pelo interesse dos consumidores por alimentos que auxiliem a promoção da saúde, tem pressionado a indústria alimentícia na oferta por novos alimentos. Dentre estes alimentos, encontram-se os óleos vegetais extraídos a frio, reconhecidos por preservarem compostos bioativos característicos e, alguns deles, serem fontes de ácidos graxos (AG) essenciais. A categoria dos óleos e gorduras apresenta, dentre outros alimentos, uma importante fonte de exposição aos hidrocarbonetos policíclicos aromáticos (HPAs), um grupo de contaminantes químicos orgânicos, alguns com ação carcinogênica. Este trabalho teve como objetivo avaliar os óleos vegetais extraídos a frio quanto aos parâmetros de identidade, de qualidade e à ocorrência de HPAs. Foram avaliadas 40 amostras, dez de cada tipo (coco, cártamo, prímula e linhaça), de diferentes marcas, adquiridas no comércio da cidade de São Paulo. Foram realizados os ensaios de perfil de AG, índice de acidez, índice de peróxido, p-anisidina, valor total de oxidação (totox) e HPAs (benzo(a)antraceno, criseno, benzo(b)fluoranteno e benzo(a)pireno). Quanto aos AG, catorze óleos (35 por cento ) não apresentaram perfis de ácidos graxos característicos que os declarados em seus rótulos, incluindo um de coco, quatro de cártamo e nove de prímula. Os valores para acidez estavam inadequados em relação a legislação para três óleos de linhaça (7,5 por cento )...

The natural product market growth, stimulated by the interest of consumers in foods that support health promotion, has encouraged the food industry to supply new kinds of foods. Among these are the cold-pressed vegetable oils, recognized by preserving characteristic bioactive compounds and, some of them, are sources of essential fatty acids (FA). The category of oils and fats owns, within others foods, an important source of exposure to polycyclic aromatic hydrocarbons (PAHs), a group of organic chemical contaminants, some of them with carcinogenic activity. This study aimed at evaluating cold-pressed vegetable oils in relation to the PAHs occurrence, as well as the quality and identity parameters. Forty samples being ten of each type (coconut oil, safflower oil, evening primrose oil and flaxseed oil) of distinct brands, which were acquired in different markets from São Paulo, were evaluated. Fatty acids profile, acid value, peroxide value, p-anisidine value, total oxidation value (totox) and PAHs (benzo(a)anthracene, chrysene, benzo(b)fluoranthene and benzo(a)pyrene) were analyzed. As for FA, fourteen oils (35 per cent ) showed different fatty acids profiles according to the ones on their labels, including one of coconut oil, four of safflower oils and nine of evening primrose oils. The acid values were unsuitable towards the legislation to three flaxseed oils (7.5 per cent )...

Mastalgia cíclica: abordagem clínica / Cyclic mastalgia: clinical approach

A mastalgia é uma queixa comum nos consultórios de mastologia. Devido à intensidade da dorou pelo medo do câncer de mama, mulheres com mastalgia buscam orientação com o mastologista.Nesse sentido, o mastologista deve estar familiarizado com o tema. Considerando que aqueixa de dor mamária está entre as mais frequentes em mastologia, conduziu-se uma revisão daliteratura, enfatizando-se a abordagem terapêutica da mastalgia.

Mastalgia is a common complaint in mastology offices. Women who are experiencing mastalgia seekclarification with the breast cancer specialist due to the intensity of the pain or because they fear breastcancer. Therefore, the specialist shall understand such issue. Considering that the complaint concerningbreast pain is one of the most frequent complaints in mastology, a literature review was carried outemphasizing the therapeutic approach of mastalgia.

Dor mamária: propedêutica e terapêutica / Breast pain: propaedeutic and therapeutic

Mastalgia é um dos sintomas mais comuns em mulheres, tendo uma prevalência de 41 a 69% e pode se apresentar como um leve desconforto até dor severa, que interfere na qualidade de vida. A principal preocupação das pacientes que consultam por este sintoma é o medo do câncer. Essa é classificada em mastalgia cíclica, acíclica ou extramamária. Cíclica quando se apresenta no período pré-menstrual; na acíclica não há relação com o ciclo e, geralmente, acomete pacientes na pós-menopausa. A extramamária é a dor referida na mama, porém usualmente é de origem musculoesquelética. Na presença de achados clínicos e radiológicos normais, aproximadamente 85% das pacientes melhoram apenas com orientação e tranquilização, não necessitando de medicação. Foi realizada uma revisão sistemática para avaliar as possibilidades terapêuticas e seus níveis de evidência. Os anti-inflamatórios não esteróides tópico, para mastalgia cíclica ou acíclica, e o fitoterâpico Agnus castus, para mastalgia cíclica, demonstraram boa eficácia e tolerabilidade e podem ser usados como medida inicial. O tamoxifeno e o danazol são medicamentos eficazes, porém apresentam mais efeitos colaterais. Para casos especiais, ainda há a alternativa de usar bromocriptina e goserelina. O manejo da dor mamária pode ser sintetizado em três itens: excluir câncer, orientar e tranquilizar ao máximo e medicar ao mínimo.(AU)

Breast pain or mastalgia is one of the most common symptoms in women, with a prevalence ranging from 41 to 69%. It presents as a mild discomfort to severe pain, that interferes with the quality of life. The main concern of patients consulting for this symptom is the fear of cancer. It is classified as cyclical, acyclical or extra-mammary. When presented during the premenstrual period, it is cyclical; acyclical, when not cycle-related and usually affects patients in post-menopausal. Extra-mammary is the breast referred pain, but it is usually of muscle-skeptical origin. In the presence of normal clinical and radiological findings, approximately 85% of patients improve only with reassurance, not requiring medication. A systematic review was performed to assess the therapeutic possibilities and their evidence levels. Topical non-steroidal anti-inflammatory drugs, for cyclic or acyclic mastalgia, and the phytotherapic Agnus castus, for cyclic mastalgia, showed good efficacy and tolerability and can be used as an initial measure. Tamoxifen and danazol are effective drugs, but they present more side effects. For special cases, there is the alternative of using bromocriptin and goserelin. Breast pain management can be summarized in three items: exclude cancer, maximum reassurance and minimum medication.(AU)

Effect of Dietary Oil Containing gamma-Linolenic Acid on the Plasma Lipid Levels and Thrombotic Activity in Rats

This study was carried out to determine the effect of dietary gamma-linolenic acid on decreasing the plasma lipid levels and the thrombotic activity in rats. Sprague-Dawley male rats (B.W 120 g) were fed a experimental diet containing 5% lard (46.05% saturated fatty acids) , corn oil (51.36% linoleic acid) , evening primrose oil (EPO,72.80% linoleic acid and 9.16% gamma-linolenic acid) or borage oil (BO,40.29% linoleic acid and 24.25% gamma-liolenic acid) for 30 days. Although there were no significant differences in the food intake among the groups, the body weight gain of the BO group was significantly lower than that of the other groups. The bleeding time of the BO group was significantly longer than that of the other groups. There were significantly differences in the whole blood clotting time among the groups except for the EPO and corn oil groups, where the whole blood clotting time of the BO group was the highest among the groups, and that of the lard group was the lowest. The plasma triacyglyceride (TAG) , total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C) concentrations were the lowest in the BO group, but highest in the lard group, and there were significant differences among the groups. The plasma HDL-C concentrations were in the following order: BO, EPO, corn oil and lard groups and there were significant differences among the groups. The excretions of fecal neutial steroids and acidic steroids of the BO group were the highest among the groups, and there were significant differences compared to the other groups. The results suggest that dietary EPO and BO containing gamma-linolenic acid has an antithrombotic activity, and inhibits the increasing of plasma TAG, TC and LDL-C concentrations compared to lard, which contains saturated fatty acids, or corn oil, which contains linoleic acid.

A Case of Allergic Contact Dermatitis due to Primula obconica / 대한피부과학회지

Primula obconica which contains the potcnt sensitizer, primin, is a common cause of allergic contact dermatitis among gardeners and florists, yet a case of primula dermatitis has not been reported in current Korean dermatologic literature to our knowledge. We report a case of a 60-year-old female patient presented with features of allergic contact dermatitis due to P. obconica. A patch test revealed positive reactions to crushed extracts of flowers of P. obconica.

Effect of Eveing Primrose on Plasma Cholesterol Levels and Immune Response to Sheep Erythrocytes

Evening primrose oil(EPO), which contains 72% cis-linoleic acid and 9% cisgamma linolenic acid, has been clinically used for treatment of number of diseases in human and animals. And it is also known to lower cholesterol(CHO) level of hypercholesterolaemic individuals. But the role of EPO as CHO-suppressant is controversial, and the relationship of EPO to CHO level in immune regulating activities is unclear at present. To evaluate the effect of evening primrose on the normal plasma CHO-levels, rabbits were fed with evening primrose seed(EPS) or injected with evening primrose seed-extract(EPE), and measured the plasma CHO-levels by duration of treatment. Both of EPS and EPE did not influence the plasma CHO-levels until 4 day treatment and thereafter the levels were significantly reduced. For the investigation of the EPE-effect on immune response to sheep erythrocytes(SRBC), mice were injected with EPE for 4 days before SRBC-sensitization or with CHO just before SRBC, Sensitization or with CHO in regulating effect of immune response was evaluated by the measuring the footpad swelling reaction and antibody response to SRBC. EPE itself did not influence Arthus reaction but it remarkable reduced delayed type hypersensitivity(DTH) and antibody production in comparison with control. CHO slightly increased Arthus reaction and DTH, but it somewhat decreased antibody responses. However, CHO significantly recovered the EPE-induced decrement of DTH and humoral immunity. There results led to that conclusion the evening primrose triggers the decrease of plasma CHO-levels and immune responses, and suggested that the mechanisms responsible for the nonspecific immune inhibitory effect of evening primrose might be partially due to the decrement of the CHO-levels.