Correlaciones existente entre tipos de fibras musculares, color y porcentaje de grasa intramuscular en cerdos de raza "chato murciano"

Mediante análisis de correlación se valora la influencia que los tipos de fibras I, IIA y IIX pueden tener sobre el color y el porcentaje de grasa intramuscular en el músculo longísimo lumbar del cerdo “Chato Murciano”. Los resultados demuestran que las fibras tipo IIX influyen sobre el color de la carne y que no existen correlaciones entre el porcentaje de grasa intramuscular y ninguno de los tipos de fibras analizados

Glycemic index, glycemic load and invasive breast cancer incidence in postmenopausal women: The PREDIMED study

The objective of this study was to evaluate the prospective associations between dietary glycemic index (GI) and glycemic load (GL) and the risk for invasive breast cancer incidence in postmenopausal women at high cardiovascular disease (CVD) risk. This study was conducted within the framework of the PREvención con DIeta MEDiterránea (PREDIMED) study, a nutritional intervention trial for primary cardiovascular prevention. We included 4010 women aged between 60 and 80 years who were initially free from breast cancer but at high risk for CVD disease. Dietary information was collected using a validated 137-item food frequency questionnaire. We assigned GI values using the International Tables of GI and GL values. Cases were ascertained through yearly consultation of medical records and through consultation of the National Death Index. Only cases confirmed by results from cytology tests or histological evaluation were included. We estimated multivariable-adjusted hazard ratios for invasive breast cancer risk across tertiles of energy-adjusted dietary GI/GL using Cox regression models. We repeated our analyses using yearly repeated measures of GI/GL intakes. No associations were found between baseline dietary GI/GL and invasive breast cancer incidence. The multivariable hazard ratio and 95% confidence interval (CI) for the top tertile of dietary GI was 1.02 (95% CI: 0.42–2.46) and for dietary GL was 1.00 (95% CI: 0.44–2.30) when compared with the bottom tertile. Repeated-measures analyses yielded similar results. In sensitivity analyses, no significant associations were observed for women with obesity or diabetes. Dietary GI and GL did not appear to be associated with an increased risk for invasive breast cancer in postmenopausal women at high CVD risk

Total and Subtypes of Dietary Fat Intake and Its Association with Components of the Metabolic Syndrome in a Mediterranean Population at High Cardiovascular Risk

Background: The effect of dietary fat intake on the metabolic syndrome (MetS) and in turn on cardiovascular disease (CVD) remains unclear in individuals at high CVD risk. Objective: To assess the association between fat intake and MetS components in an adult Mediterranean population at high CVD risk. Design: Baseline assessment of nutritional adequacy in participants (n = 6560, men and women, 55-75 years old, with overweight/obesity and MetS) in the PREvención con DIeta MEDiterránea (PREDIMED)-Plus randomized trial. Methods: Assessment of fat intake (total fat, monounsatured fatty acids: MUFA, polyunsaturated fatty acids: PUFA, saturated fatty acids: SFA, trans-fatty acids: trans-FA, linoleic acid, α-linolenic acid, and ω-3 FA) using a validated food frequency questionnaire, and diet quality using 17-item Mediterranean dietary questionnaire and fat quality index (FQI). Results: Participants in the highest quintile of total dietary fat intake showed lower intake of energy, carbohydrates, protein and fiber, but higher intake of PUFA, MUFA, SFA, TFA, LA, ALA and ω-3 FA. Differences in MetS components were found according to fat intake. Odds (5th vs. 1st quintile): hyperglycemia: 1.3-1.6 times higher for total fat, MUFA, SFA and ω-3 FA intake; low high-density lipoprotein cholesterol (HDL-c): 1.2 higher for LA; hypertriglyceridemia: 0.7 lower for SFA and ω-3 FA intake. Conclusions: Dietary fats played different role on MetS components of high CVD risk patients. Dietary fat intake was associated with higher risk of hyperglycemia

Seafood Consumption, Omega-3 Fatty Acids Intake, and Life-Time Prevalence of Depression in the PREDIMED-Plus Trial

Background: The aim of this analysis was to ascertain the type of relationship between fish and seafood consumption, omega-3 polyunsaturated fatty acids (ω-3 PUFA) intake, and depression prevalence. Methods: Cross-sectional analyses of the PREDIMED-Plus trial. Fish and seafood consumption and ω-3 PUFA intake were assessed through a validated food-frequency questionnaire. Self-reported life-time medical diagnosis of depression or use of antidepressants was considered as outcome. Depressive symptoms were collected by the Beck Depression Inventory-II. Logistic regression models were used to estimate the association between seafood products and ω-3 PUFA consumption and depression. Multiple linear regression models were fitted to assess the association between fish and long-chain (LC) ω-3 PUFA intake and depressive symptoms. Results: Out of 6587 participants, there were 1367 cases of depression. Total seafood consumption was not associated with depression. The odds ratios (ORs) (95% confidence intervals (CIs)) for the 2nd, 3rd, and 4th quintiles of consumption of fatty fish were 0.77 (0.63–0.94), 0.71 (0.58–0.87), and 0.78 (0.64–0.96), respectively, and p for trend = 0.759. Moderate intake of total LC ω-3 PUFA (approximately 0.5–1 g/day) was significantly associated with a lower prevalence of depression. Conclusion: In our study, moderate fish and LC ω-3 PUFA intake, but not high intake, was associated with lower odds of depression suggesting a U-shaped relationship

Valoración del cumplimiento de la quimioprofilaxis antituberculosa en la población reclusa del centro penitenciario de Jaén

BACKGROUND: This study highlights the importance of anti-tubercular chemoprophylaxis with isoniazid to control and prevent tuberculosis in prisons. The relationship between compliance with the chemoprophylaxis and study factors was evaluated and we examined whether health education given in our prison motivated the prisoners to comply with this treatment. METHODS: Compliance with chemoprophylaxis using isoniazid by 52 inmates of the Jaén Penal Institution was studied for the period February to May 1995. The dose of isoniazid taken was calculated by means of the spectrophotometric determination of isoniazid metabolites in urine using the Eidus Hamilton method. Likewise, the influence of variables such as sex, HIV infection, legal situation and cultural level on compliance was studied. RESULTS: Out of 52 inmates, 23 (44.23%) were taking a daily dose of isoniazid that was considered to be effective and 29 inmates (55.77%) were taking less than the effective isoniazid dose for the chemoprophylaxis. With regard to the variables studied, greater compliance with the chemoprophylaxis was recorded among men (sex variable) and those inmates with a higher educational level (cultural level) although no significant differences were found. CONCLUSIONS: Compliance with the chemoprophylaxis among our inmates is inadequate although it matches similar studies that have been carried out on the prison population. This is not the case for the community population where compliance with chemoprophylaxis is greater. This low compliance forces us to review our current health education programme and to take steps that might increase this degree of compliance such as direct observation of treatment, a system of intermittent treatment, etc.FUNDAMENTO: El presente estudio resalta la importancia de la quimioprofilaxis antituberculosa con Isoniacida, para el control y prevención de la tuberculosis en el medio penitenciario. Se ha valorado la relación existente entre el cumplimiento de la quimioprofilaxis con factores de estudio; así como, hemos determinado si la educación sanitaria dispensada en nuestro centro, ha motivado a la población reclusa en el cumplimiento de este tratamiento. MÉTODOS: Se estudió el cumplimiento de la quimioprofilaxis con Isoniacida de 52 internos del Centro Penitenciario de Jaén, durante el periodo de febrero a mayo de 1995, calculando la dosis de Isoniacida tomada, mediante la determinación espectrofotométrica de metabolitos de Isoniacida en orina, por el método de Eidus Hamilton. Asímismo, se estudió la influencia sobre el cumplimiento de variables como sexo, infección por VIH, situación judicial y nivel cultural. RESULTADOS: De los 52 internos, 23 (44.23%) tomaban diariamente una dosis de Isoniacida considerada como efectiva; y 29 internos (55.77%) tomaban menos de la dosis de Isoniacida efectiva para la quimioprofilaxis. En cuanto a las variables estudiadas, los hombres (variable sexo) y aquellos internos con mayor grado educacional (nivel cultural) mostraron un mayor cumplimiento de la quimioprofilaxis, a pesar de no encontrar diferencias significativas. CONCLUSIONES: El cumplimiento de la quimioprofilaxis en nuestra población es deficiente, aunque se halla en consonancia con estudios similares realizados también sobre la población reclusa; no ocurre lo mismo con la población comunitaria donde encontramos un mayor cumplimiento de la quimioprofilaxis. ste bajo cumplimiento nos obliga a revisar el actual programa de educación sanitaria, así como aplicar medidas que puedan aumentar este grado de cumplimiento, como la observación directa del tratamiento, el régimen de tratamiento intermitentes, etc

Secondary myelodysplastic syndrome after treatment for promyelocytic leukemia: clinical and genetic features of two cases

Acute promyelocytic leukemia (APL) represents a biologic and clinically well-defined subtype of acute nonlymphocytic leukemia with specific morphologic and karyotypic characteristics. Although secondary leukemia and myelodysplastic syndromes (MDS) are the most frequent secondary neoplasms following chemotherapy for acute leukemia, their development after complete remission in patients with APL is uncommon. We describe the clinical and genetic features of two APL patients who achieved CR after chemotherapy and all-trans retinoid acid treatment and subsequently developed a MDS. Therapy-related MDS karyotype changes such as abnormalities of chromosomes 5 and 7 were found in the cytogenetic analysis. Since TP53 alteration was detected in one case, possible implications of these findings in the onset of MDS are discussed

Secondary myelodysplastic syndrome after treatment for promyelocytic leukemia: clinical and genetic features of two cases

Acute promyelocytic leukemia (APL) represents a biologic and clinically well-defined subtype of acute nonlymphocytic leukemia with specific morphologic and karyotypic characteristics. Although secondary leukemia and myelodysplastic syndromes (MDS) are the most frequent secondary neoplasms following chemotherapy for acute leukemia, their development after complete remission in patients with APL is uncommon. We describe the clinical and genetic features of two APL patients who achieved CR after chemotherapy and all-trans retinoid acid treatment and subsequently developed a MDS. Therapy-related MDS karyotype changes such as abnormalities of chromosomes 5 and 7 were found in the cytogenetic analysis. Since TP53 alteration was detected in one case, possible implications of these findings in the onset of MDS are discussed