School non-attendance is often accompanied by declines in self-esteem. The present study investigated factors associated with self-esteem in junior high school students. Self-esteem, “willingness to attend school”, "school life competency" and "consistent lifestyle practice" were evaluated using anonymous questionnaire surveys in 892 students. Self-esteem was quantitated using the scale created by Rosenberg (1965). Association between self-esteem and other variables were analyzed using Spearman’s correlation coefficient. Self-esteem was significantly associated with school life competency (r = 0.501) and consistent lifestyle practices (r = 0.352). Moreover, self-esteem was significantly correlated with willingness to attend school (r = 0.449). Willingness to attend school was also correlated with school life competency (r = 0.476) and consistent lifestyle practices (r = 0.41). These findings imply that improving the consistency of lifestyle practices and enhancing school life competency may increase self-esteem in the students, which will be beneficial to increase students’ willingness to attend school.

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The NAD⁺–sirtuin 1 (SIRT1) pathway is essential for neutrophil differentiation induced by the granulocyte-colony stimulating factor, and thus may contribute to neutropenia observed after cancer chemotherapies. This study aimed to investigate the relationship between neutropenia and indices for the activity of the NAD-SIRT1 pathway, i.e., nicotinamide phosphoribosyltransferase (NAMPT) activity and SIRT1 expression in patients receiving chemotherapy for lung cancer. Blood samples were collected from sixteen patients at the start of chemotherapy, at the nadir, and before the start of the second chemotherapy course. Neutrophil counts, NAMPT activity and SIRT1 expression level were measured. There were no differences observed either in NAMPT activity or in SIRT1 expression level between the cases of grade 3–4 neutropenia and those of grade 0–2 neutropenia though the SIRT1 expression level tended to decrease at the nadir. Further studies are required to elucidate this relationship between post-chemotherapy neutropenia and SIRT1 expression.

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Whole body scintigraphy with I-131 has a high sensitivity for detecting thyroid tissue. I-131 radioactive iodine accumulation has been reported in mature cystic teratoma (MCT) accompanied by struma ovarii, which contains thyroid tissue, and a teratoma has been reported to contain various tissue types. Here we present a rare case of positive radioactive iodine uptake in MCT with mucinous cystadenoma in a 50-year-old patient. I-131 radioactive iodine uptake is variable, and the correct diagnosis and appropriate management of patients should be ensured.

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Ewing sarcoma (ES) is a high-grade malignancy usually identified in children and adolescents. Primary extraskeletal lesions of ES are rarely detected and no established treatments are available for advanced ES. A fifteen-year-old female presented with abdomen discomfort, and had high titer of neuron specific enolase (NSE), a specific tumor marker for neuroendocrine tumors. Radiological findings showed a large kidney mass with many nodules in bilateral lung and ilium. She was diagnosed as ES after total nephrectomy. She received chemotherapy and autologous peripheral blood stem cell transplantation accompanied with high-dose chemotherapy, but the tumor recurred in lung and bone. Our case suggests that it is necessary to differentiate ES for childhood and adolescent patients of large renal tumor with metastasis having high value of NSE. Developing a new treatment including molecular targeted therapy is warranted for patients with advanced ES.

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After publication of above article, the authors realized some errors. The authors correct the errors as follows.

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