Effect of a School-Based Intervention on Nutritional Knowledge and Habits of Low-Socioeconomic School Children in Israel: A Cluster-Randomized Controlled Trial.

Early social and economic deprivation, associated with poor nutrition and physical inactivity, may lead to adverse health trajectories. A cluster-randomized controlled-trial examining the effect of a school-based comprehensive intervention on nutrition knowledge, eating habits, and behaviors among low socioeconomic status (LSES) school-aged children was performed. LSES school-aged children (4-7 years) and their mothers were recruited from 11 schools, located in one town. The intervention was implemented on three levels: children, mothers, and teachers. The intervention (IArm) included nutrition classes for children, mothers, and teachers and physical activity (PA) classes for children; the control (CArm) received PA only. Interventions were conducted by professional personnel, who were trained during in a two-day session to deliver the specific program in schools. Family data were obtained by parental interviews. Food knowledge observations, packed lunch records, and anthropometric measurements were obtained in school at baseline, six months, and at the end of the school year. Of 258 children enrolled, 220 (87.6%) completed the six-month program. Only children in the IArm improved their nutrition knowledge and eating-habits and increased food variety and fruit and vegetable consumption, quality score of packed lunches (p < 0.001 for all), habitual water drinking increased (p = 0.02), and decreased sweet-drink consumption (p = 0.05). A school-based comprehensive nutrition intervention targeting LSES population improved eating habits, nutritional knowledge, and healthier packed lunches.

Factors associated with childhood overweight and obesity among acculturated and new immigrants.

OBJECTIVE: To examine the relationship between acculturation and obesity among low socioeconomic status (LSES) children. DESIGN: Cross-sectional study. SETTING: Children from 12 preschools in LSES neighborhoods were recruited. PARTICIPANTS: Anthropometric measurements were obtained from 238 children (aged 4-7 years) and 224 mothers. Sociodemographic characteristics and perceptions of child's weight were collected from mothers. We compared native Israelis and immigrants for risk factors for obesity, using a 9-year cut-off to define new and acculturated immigrants. RESULTS: The combined prevalence of overweight and obesity (OWOB) among children was 29.8% (71/238) using the World Health Organization (WHO) growth standard. Mean age, sleeping hours, sex distribution and poverty level were similar between immigrants and natives. Prevalence of OWOB and current parental smoking were significantly lower among children of new immigrants (P = .02). More than 82% of mothers underestimated their child's weight status, 74.2% of OWOB children were perceived as normal-weight (NW) and 8% as thin. In a multivariable logistic-regression analysis comparing NW to OWOB children, maternal underestimation of the child's weight status (OR = 7.5; 95%CI: 3.4-16.5, P < .0001) and being born to acculturated immigrants (OR = 2.3 95% CI: 1.1-4.7, P = .03) were associated with OWOB. Ethiopian children were at lower risk for obesity. Paternal smoking increased the risk for obesity by 2-fold in non-Ethiopian, and 5-fold in Ethiopian children (OR = 2.0 and 5.0, respectively; P for interaction = .026). CONCLUSIONS: Acculturation, perception of child's weight status and parental smoking are associated with childhood OWOB. Immigration status should be considered when programs to prevent childhood obesity are implemented in mixed populations.

Posttraumatic stress disorder among preschoolers exposed to ongoing missile attacks in the Gaza war.

BACKGROUND: The prevalence and manifestation of posttraumatic stress symptoms in young children may differ from that observed in adults. This study examined sociodemographic, familial, and psychosomatic correlates of posttraumatic stress disorder (PTSD) among preschool children and their mothers who had been exposed to ongoing missile attacks in the Gaza war. METHODS: One hundred and sixty-seven mothers of preschoolers (aged 4.0-6.5 years) were interviewed regarding PTSD and psychosomatic symptomatology of their children, as well as their own reactions to trauma. RESULTS: Fourteen mothers (8.4%) and 35 children (21.0%) screened positive for PTSD. Sociodemographic characteristics were not associated with PTSD among mothers or children. Among children, the only significant risk factor was having a mother with PTSD (OR = 12.22, 95% CI 2.75-54.28). Compared to children who did not screen positive for PTSD, those who did screen positive displayed significantly higher rates of psychosomatic reactions to trauma, most notably constipation or diarrhea (OR = 4.36, 95% CI 1.64-11.60) and headaches (OR = 2.91, 95% CI 1.07-7.94). CONCLUSIONS: Results of this study add to the burgeoning literature on child PTSD, emphasizing the important role of maternal anxiety and the psychosomatic reactions associated with exposure to ongoing traumatic experiences in young children.

Interaction of calbindin D28k and inositol monophosphatase in human postmortem cortex: possible implications for bipolar disorder.

OBJECTIVES: Therapeutically relevant concentrations of lithium (Li) exert an uncompetitive inhibition on inositol monophosphatase (IMPase). It has recently been shown that calbindin D28k (calbindin) activates IMPase. Purified calbindin attaches to a specific amino acid sequence on purified IMPase enhancing its activity by several hundred fold. We studied whether calbindin activates IMPase in postmortem human brain crude homogenate, whether differences in calbindin levels between lymphocytes and brain may be responsible for our previous finding of reduced IMPase activity in lymphocytes but not brain of bipolar patients, and whether calbindin protein levels are altered in postmortem brain from bipolar patients versus control subjects and schizophrenic and major depressive patients. METHODS: IMPase activity in human postmortem brain specimens with or without 10 microM human recombinant calbindin was quantified spectrophotometrically in an enzyme-linked immunosorbent assay (ELISA) reader. Calbindin protein levels in postmortem brain were determined using Western blot analysis. RESULTS: Supplementation of human recombinant calbindin to postmortem human brain crude homogenate enhanced IMPase activity by 3.5-fold. No difference in postmortem temporal cortex calbindin protein levels was found between bipolar patients versus comparison groups. Two-fold higher calbindin protein levels were found in Li-treated bipolar patients compared with other bipolar patients. Subchronic Li treatment in mice did not affect brain calbindin protein levels significantly. Chronic Li treatment reduced calbindin protein levels in the frontal cortex but not in the hippocampus. CONCLUSIONS: Calbindin is a physiological activator of IMPase in human brain. Protein levels of calbindin are not altered in postmortem temporal cortex of bipolar patients.