In middle-aged and old obese patients, training intervention reduces leptin level: A meta-analysis

BACKGROUND: Leptin is one of the major adipokines in obesity that indicates the severity of fat accumulation. It is also an important etiological factor of consequent cardiometabolic and autoimmune disorders. Aging has been demonstrated to aggravate obesity and to induce leptin resistance and hyperleptinemia. Hyperleptinemia, on the other hand, may promote the development of age-related abnormalities. While major weight loss has been demonstrated to ameliorate hyperleptinemia, obese people show a poor tendency to achieve lasting success in this field. The question arises whether training intervention per se is able to reduce the level of this adipokine. OBJECTIVES: We aimed to review the literature on the effects of training intervention on peripheral leptin level in obesity during aging, in order to evaluate the independent efficacy of this method. In the studies that were included in our analysis, changes of adiponectin levels (when present) were also evaluated. DATA SOURCES: 3481 records were identified through searching of PubMed, Embase and Cochrane Library Database. Altogether 19 articles were suitable for analyses. STUDY ELIGIBILITY CRITERIA: Empirical research papers were eligible provided that they reported data of middle-aged or older (above 45 years of age) overweight or obese (body mass index above 25) individuals and included physical training intervention or at least fitness status of groups together with corresponding blood leptin values. STATISTICAL METHODS: We used random effect models in each of the meta-analyses calculating with the DerSimonian and Laird weighting methods. I-squared indicator and Q test were performed to assess heterogeneity. To assess publication bias Egger's test was applied. In case of significant publication bias, the Duval and Tweedie's trim and fill algorithm was used. RESULTS: Training intervention leads to a decrease in leptin level of middle-aged or older, overweight or obese male and female groups, even without major weight loss, indicated by unchanged serum adiponectin levels. Resistance training appears to be more efficient in reducing blood leptin level than aerobic training alone. CONCLUSIONS: Physical training, especially resistance training successfully reduces hyperleptinemia even without diet or major weight loss

Suprimento de micronutrientes, adequação energética e progressão da dieta enteral em adultos hospitalizados Adequacy of energy and micronutrient supply and progression of enteral diet in hospitalized adult patients

OBJETIVO: Avaliar a adequação da dieta enteral, em termos de micronutrientes e energia e identificar fatores interferentes na progressão da dieta enteral prescrita a adultos hospitalizados em um hospital geral de alta complexidade. MÉTODOS: Entre junho de 2004 e maio de 2005, adultos internados em um hospital de alta complexidade do sul do Brasil foram avaliados quanto às suas características clínicas e da prescrição da nutrição enteral. As características da nutrição enteral foram avaliadas e comparadas às recomendações diárias de ingestão, obtendo-se o percentual de adequação de nutrientes prescritos na dieta enteral em relação aos valores de recomendação para cada paciente. Os fatores associados à prescrição de energia foram identificados por meio de Regressão Linear Múltipla. RESULTADOS: Foram acompanhados 230 pacientes em uso de nutrição enteral. As recomendações diárias foram alcançadas satisfatoriamente para vitaminas hidrossolúveis (exceto ácido fólico), lipossolúveis (exceto vitamina D) e minerais (exceto cálcio). Em média, as prescrições iniciais de nutrição enteral ofereceram 24,0kcal/kg/dia (desvio-padrão=10,8, e valores mínimo e máximo de 4,3 a 69,2), e progrediram até 28,4kcal/kg/dia (desvio-padrão=11,8, valores mínimo e máximo de 1,4 a 69,2). A recomendação de 25 a 35kcal/kg/dia foi prescrita para 32,6% dos pacientes. Para 15,7% dos pacientes foram prescritas acima de 40kcal/kg/dia. Somente o índice de massa corporal e o número de dias de hospitalização, ajustados para a quantidade de energia já inicialmente prescrita, associaram-se de forma independente à prescrição energética final. CONCLUSÃO: Pequena proporção das prescrições esteve adequada em relação à quantidade de energia, e a progressão da dieta enteral ocorreu independentemente das características clínicas dos pacientes.<br>OBJECTIVE: To asses the adequacy of enteral diet, in terms of micronutrients and energy and to identify factors that interfere in the progression of enteral diets prescribed to adults hospitalized in a high complexity general hospital. METHODS: From June 2004 to May 2005, adult patients hospitalized in a high complexity hospital, in Southern Brazil, were assessed in terms of enteral diet prescription and clinical characteristics. The characteristics of the enteral nutrition were assessed and compared with the recommended daily intakes, obtaining percentages of nutrient adequacy of the enteral diet. Factors associated with energy prescription were identified by multiple linear regression. RESULTS: Two hundred and thirty tube-fed patients were followed. The dietary reference intakes were satisfatory met for water-soluble vitamins (except for folic acid), fat-soluble vitamins (except for vitamin D) and minerals (except for calcium). The mean initial energy prescription was 24.0 kcal/kg/day (standard deviation=10.8, minimum and maximum values ranging from 4.3 to 69.2kcal/kg/day) and progressed to 28.4kcal/kg/day (standard deviation=11.8, minimum and maximum values ranging from 1.4 to 69.2kcal/kg/day).The recommendation of 25 to 35kcal/kg/day was prescribed to 32.6% of patients. Forty or more kcal/kg/day was presuibed to 15.7% of the patients. Only body mass index and the number of hospital stay days, adjusted to the energy prescribed at the beginning, were independently associated with the final energy prescription. CONCLUSION: A small proportion of the prescriptions were adequate in terms of Kcal/kg/day, and the progression of enteral diet occurs regardless of the clinical characteristics of the patients

AN OPTIMIZATION PROBLEM FOR A PRODUCTION SYSTEM WITH REAL OPTION APPROACH (Nonlinear Analysis and Convex Analysis)

Arhinia, or absence of the nose, is a rare malformation of unknown etiology that is often accompanied by ocular and reproductive defects. Sequencing of 40 people with arhinia revealed that 84% of probands harbor a missense mutation localized to a constrained region of SMCHD1 encompassing the ATPase domain. SMCHD1 mutations cause facioscapulohumeral muscular dystrophy type 2 (FSHD2) via a trans-acting loss-of-function epigenetic mechanism. We discovered shared mutations and comparable DNA hypomethylation patterning between these distinct disorders. CRISPR/Cas9-mediated alteration of smchd1 in zebrafish yielded arhinia-relevant phenotypes. Transcriptome and protein analyses in arhinia probands and controls showed no differences in SMCHD1 mRNA or protein abundance but revealed regulatory changes in genes and pathways associated with craniofacial patterning. Mutations in SMCHD1 thus contribute to distinct phenotypic spectra, from craniofacial malformation and reproductive disorders to muscular dystrophy, which we speculate to be consistent with oligogenic mechanisms resulting in pleiotropic outcomes