Abstract Macrobrachium acanthurus is a caridean prawn native to Brazil, and studying techniques to assist in its cultivation is important due to economic interest in it. Eyestalk ablation is commonly used to promote ovarian development and maturation of captive crustaceans, but it can have possible consequences on fertility and brood quality. Histological and histochemical dynamism of oogenesis was analyzed under control (non-ablated females) and unilateral eyestalk ablated females. Females with ovaries in the spent stage of gonadal development were divided into two treatments: unilaterally ablated and non-ablated. A second experiment with the same treatments was conducted using females with mature gonads. Histological and histochemical analyses of the ovaries indicated that the ablation did not affect oogenesis based on ovarian structure, oocyte size, histochemical properties, and atretic oocytes. Ovarian maturation was not accelerated by ablation, either. Survival, nuptial molting, and spawning were also unaffected. From an applied point of view, unilateral eyestalk ablation is not needed in M. acanthurus farming because it does not improve reproductive performance.

RESUMO OBJETIVO: Analisar se a implementação de um programa educacional multidisciplinar para prevenção cardiovascular em escolas públicas durante um ano pode contribuir para reduzir o escore de risco cardiovascular de Framingham dos pais das crianças. MÉTODOS: Estudo prospectivo, de base comunitária, caso-controle em duas escolas públicas de São Paulo, Brasil. Os alunos foram randomizados para receber recomendações de estilo de vida saudável por duas abordagens diferentes. O grupo controle recebeu folhetos educacionais de saúde cardiovascular encaminhados para seus pais. O grupo intervenção recebeu os mesmos folhetos e as crianças foram expostas a um programa educacional semanal, durante um ano, com uma equipe multidisciplinar em prevenção cardiovascular. Dados clínicos e laboratoriais foram coletados no início e no final do estudo. RESULTADOS: Foram sujeitos do estudo 418 pais das crianças das escolas. No início da pesquisa, o total de pais com escore de Framingham intermediário ou alto (risco superior a 10% de doença cardiovascular nos próximos dez anos) foi de 6,9% no grupo controle e de 13,3% no grupo intervenção. Após um ano, dentre os pais com escore de risco de Framingham intermediário ou alto, foi observada redução de 22,2% no grupo intervenção e aumento de 33,3% no grupo controle (p=0,031). Os fatores de risco cardiovascular que melhoraram no grupo de intervenção foram pressão arterial, LDL-colesterol (lipoproteína de baixa densidade) e glicemia. CONCLUSÃO: Um programa educacional de prevenção cardiovascular para crianças em idade escolar, em escolas públicas, pode reduzir o risco cardiovascular de seus pais.

SUMMARY OBJECTIVE: The aim of this study was to analyze whether the implementation of a multidisciplinary educational programme for cardiovascular prevention in public schools can contribute to reducing the Fram INGHAM CARDIOVASCULAR RISK SCORE OF THE CHILDREN'S PARENTS AFTER ONE YEAR. METHODS: This was a prospective, community-based, case-control study carried out in public schools in Sao Paulo, Brasil. Students were randomized to receive healthy lifestyle recommendations by two different approaches. The control group received written cardiovascular health educational brochures for their parents. The intervention group received the same brochures for the parents, and the children were exposed to a weekly educational programme on cardiovascular prevention with a multidisciplinary health team for one year. Clinical and laboratorial data were collected at the onset and end of the study. RESULTS: We studied 265 children and their 418 parents. At the baseline, the rate of parents with intermediate or high Framingham scores (risk of cardiovascular disease over the next 10 years greater than 10%) was 6.9% in the control group and 13.3% in the intervention group. After one year, the rate of parents with intermediate or high Framingham risk score was reduced by 22.2% in the intervention group and increased by 33.3% in the control group (p=0.031). The cardiovascular risk factors that improved in the intervention group were blood pressure, LDL-cholesterol (low-density lipoprotein cholesterol), and glucose levels. CONCLUSION: An educational programme on cardiovascular prevention for school-age children in public schools can reduce the cardiovascular risk of their parents.