[Inefficient education and process of obesity in Tehranian adolescents: a qualitative study]

This study aimed to determine inefficiencies in current educational programs for promoting of healthy lifestyles and prevention of obesity from the perspective of adolescents and mothers. This was a qualitative study conducted based on a grounded theory approach. To collect data, 23 personal interviews and 12 semi-structured focus group discussions were conducted with overweight/obese adolescents and mothers who had at least one overweight/obese child. To maximize the variation of participants' experiences with different socio-economic backgrounds, two demographically diverse areas from the north and south of Tehran were selected and followed with theoretical sampling. All the interviews and focus group discussions were audio recorded and transcribed verbatim. Data collection and analysis were done simultaneously, using the Strauss and Corbin analysis method. In the current study, inefficient education was explored using two main themes including "Single dimensional curriculum of schools" and "Inefficient public education". The single dimensional curriculum of schools was found to be characterized by "lesson-based curriculum" and "burdensome educational programs" and the inefficient public education was characterized by "inappropriate content", "lack of comprehensive educational program", "inappropriate ways of messaging" and "contradictory messages". Based on the findings of this study, "single dimensional curriculum of schools" and "Inefficient public education" were the main correlates of inefficient education in our society, which led to obesity-related behaviors and consequently excessive weight gain in Tehranian adolescents. The results of this study may be effective in prioritizing and designing health promotion programs aimed at promoting healthy lifestyles and prevention of obesity in children and adolescents

[Prevalence of low birth weight and comparison of many biological characteristics of low birth weight - newborns, mothers with those of normal weight - newborns' counterparts]

The prevalence of low birth weight is one of the important sanitary indices in evaluating the prenatal care all over the world. So, recognition of risky factor to low birth weight can help prevent the occurrence of being low birth weight. To determine the prevalence of low birth weight in Guilan and comparison of many biological characteristics of mothers of low birth weight babies with those of the mothers with normal weight babies. In the descriptive- analytical study, first, all newborn babies in 20 hospitals and maternity centers between Day [Jan. 2008] and Azar [Nov. 2009] were selected. Then, 168 low birth weight babies and 157 normal weight babies were randomly selected along with their mothers who filled the biological characteristics questionnaire with 0/85 validity. Variables in this research includes the condition of mother's nourishment, smoking, suitable mobility and rest, high blood pressure, exposure to X-ray, and bleeding during pregnancy. Since the variables were classical, [nominal scale], the data were analyzed by qui statistical method and Phi coefficient in meaningful level [p

[Cytological radiotoxicity of radioiodine therapy in patients with differentiated thyroid carcinoma]

Cytological radiation damage to lymphocytes can result in augmentation of cells with micronuclei. In this study we investigated Cytological radiation damage to peripheral blood lymphocytes using the micronuclei assay [MNA] method. Considering the value of Iodine-131 in diagnostic and therapeutic nuclear medicine and high absorbed dose of I131 radioiodine in comparison with gamma emitters and the effect of type of radiation, dose and species on radiosensitivity of patients, this study was conducted. To evaluating the Cytological radiotoxicity of therapeutic radiotracers such as radioiodine I131. We studied 22 patients with differential thyroid carcinoma who were referred for treatment with 100 or 150 mci I131. Before and one weak after treatment the peripheral lymphocytes were harvested and isolated by a Cytological method and assayed for frequency of micronuclei as a marker of Cytological radiotoxicity. The means of micronuclei in one hundred binuclear lymphocytes were 6.3 +/- 2.2 before treatment and 9.6 +/- 3.1 after treatment, differences in the number of micronuclei being statistically significant [p value <0.05]. High doses of radioiodine therapy used after surgery for differentiated thyroid carcinoma can increase micronuclei among peripheral lymphocytes as an indirect marker of chromosomal aberrations and cytotoxic radiation damage