Revistas depredadoras: una nueva amenaza a las publicaciones científicas / Predatory journals: a new threat to scientific publications

The goal of the Open Access movement is to promote free access to scientific literature. From its creation in the nineties it has been a fundamental support to the democratization of knowledge. In the last years, however, a new fraud model has been detected: journals that use open access publications as "Predatory Journals", which do not fulfill minimal quality standards and profit with the model. To inform the Latin American community about such editorial malpractice, we have reviewed the literature about this issue, aiming to explain what predatory journals are, how to detect them and how they contact authors. One of this article's main conclusion is that students, academics and researchers need to develop skills to recognize this or any other kinds of publication fraud.

Evaluación del screening de perfil lipídico propuesto por la Academia Americana de Pediatría / Usefulness of the American Academy of Pediatrics lipid screening

Objective: To determine if the screening adopted by the American Academy of Pediatrics to search for alterations in lipid profile is useful in the population of Centro Asistencial Norte of Antofagasta. Patients and Method: 61 patients 2 to 14 years of age were screened using the AAP lipid profile (family history of cardiovascular disease, hypercholesterolemia of parents, presence of overweight, arterial hypertension, tobacco addiction, consumption of fats) to evaluate its relationship to laboratory results (total cholesterol, HDL, LDL and triglycerides). Ain analytical study of cross section was used, utilizing /-test and the Fisher's Test were used with alpha = 0.05. Results: A difference in parent hypercholesterolemia (p = 0.013) with sensitivity of 31 percent and specificity of 63 percent was found, with a risk of 6 times higher for dyslipidemia in children with hypercholeste-rolemia in parents (RO with CI of 95 percent of 6.75 (1.18-68.51)). Conclusion: In this sample, utilizing the AAP screening, only the history of hypercholesterolemia in parents was valuable to determine if the patients had a higher risk of presenting dyslipidemia.

Objetivo: Determinar si los criterios de screening adoptados por la American Academy of Pediatrics para pesquisar alteraciones de perfil lipídico son útiles en población consultante del Centro Asistencial Norte de Antofagasta. Pacientes y Método: 61 pacientes entre 2 y 14 años fueron sometidos a screening de perfil lipídico (historia familiar de enfermedad cardiovascular, hipercolesterolemia parental, sobrepeso, hipertensión arterial, tabaquismo, consumo elevado de grasas) para analizar si se relacionaban con los resultados obtenidos del laboratorio. El diagnóstico se realizó considerando los valores de colesterol total, HDL, LDL y triglicéridos. El diseño correspondió a un estudio analítico de corte transversal. Para analizar los grupos se utilizó el /-test y la prueba de Fisher con alfa = 0,05. Resultados: Sólo hubo diferencia significativa en el antecedente de hipercolesterolemia parental (p = 0,013) con sensibilidad del 31 por ciento y especificidad de 63 por ciento, observándose un riesgo de 6 veces más posibilidades de tener dislipidemia en los hijos de padres con hipercolesterolemia (OR con intervalo de confianza al 95 por ciento de 6,75 (1,18 - 68,51). Conclusión: En la muestra, según los criterios de screening, sólo el antecedente de hipercolesterolemia de los padres resultó valioso para determinar si los pacientes tenían más riesgo de presentar dislipidemia.