Comparison of the implementation status of weight control and physical activities between South Korean and Japanese university students

( Tomoko Ikeda ),( Takahiro Ikeda ),( Osamu Aoyagi ),( Tae Hee Choi ),( Nam Ik Han ),( Ye Ju Hong ),( Kwang Soo Koo ),( Youn Shin Nam ) 한국체육학회 2016 국제스포츠과학 학술대회 Vol.2016 No.1

Purpose: Adolescent Japanese girls have a strong desire to be thin and, therefore, engage in many unhealthy weight-control behaviors such as dieting. In recent years, this drive for thinness has spread to include boys as well as girls. Meanwhile, the desire to be thin is also increasing among adolescents in South Korea. The present study aimed to investigate the correlation between weight-control (WC) behaviors and physical activity (PA) among university students in Japan and South Korea. Method: The subjects comprised 1,833 university students in Japan (male, 454; female, 456) and South Korea (male, 449; female, 474). All subjects were asked whether they engaged in WC behaviors and were queried about the intensity (mild, moderate, and vigorous), number of days per week, and duration of PA. The correlations between sex, WC behaviors, and PA were investigated by country using a chi-square test. Multiple correspondence analysis (MCA) was then applied to investigate overall correlations. Result: The rates of WC behaviors were higher among female students than male students in both countries (58.7% vs. 18.4% in Japan [χ2=151.9***] and 61.1% vs. 42.3% in South Korea [χ2=32.6***]). Regarding PA, male students tended to exercise more days per week than female students in South Korea for all PA intensities. The same tendency was observed in Japan in relation to moderate and vigorous PA, but not for mild PA which was the same for males and females. Two-dimensional (2D) plots based on the results of MCA showed a correlation between not engaging in WC behaviors and performing PA among male students and between engaging in WC behaviors and not performing PA among female students in both Japan and South Korea for mild PA (1D: α=.455, eigenvalue=1.519; 2D: α=.336, eigenvalue=1.337). This tendency became increasingly marked for moderate (1D: α=583, eigenvalue=1.776, 2D: α=.463, eigenvalue=1.531) and vigorous (1D: α=.656, eigenvalue=1.970, 2D: α=.470, eigenvalue=1.544) PA. Conclusion: Female university students in Japan characteristically engaged in WC behaviors without PA, and this tendency became more marked as exercise intensity increased. Female university students in South Korea also engaged in WC behaviors, but they also performed moderate PA; and WC behaviors were associated with PA. Male university students in South Korea engaged in WC behaviors, but these were associated with PA and the number of days per week; and durations of PA were greater than those of female university students in South Korea at all PA intensities. The rates of WC behaviors were low among male university students in Japan; however, the number of days per week and duration of PA were greater than those of male university students in South Korea at all PA intensities. The present findings show that the correlations between WC behaviors and PA observed among university students in South Korea are stronger in Japan.

Comparative Investigation into the Propensities of Japanese and Korean University Students to Engage in Physical Activity and the Influence of Nationality, Gender, BMI and Weight Control

Tomoko Ikeda,池田孝博,靑柳領,최태희,한남익,홍예주,구광수,남윤신,서영환 한국발육발달학회 2020 한국발육발달학회지 Vol.28 No.4

이 연구의 목적은 신체 활동에 대한 성향과 국적, 성별, BMI 및 체중 조절 방법으로서의 신체 활동의 효과를 조사하는 것이다. 대상자는 일본과 한국 대학생 1,833명(일본 910명, 한국 923명)의 학생을 대상으로 하였으며, 통계적 분석은 카이 제곱 검정과 로지스틱 회귀 분석을 실시하였다. BMI와 관련하여 비교했을 때, 일본과 한국 대학생 모두 여학생의 “저체중” 비율이 남학생보다 높은 것으로 나타났다. 한국 학생들 중 남학생은 여학생보다 모든 강도에서 운동을 더 많이 한 것으로 나타났으며, 일본 학생들은 가벼운 신체 활동에 대해 성별 차이를 보이지 않았으나, 남학생은 여학생보다 중등도의 격렬한 신체 활동에 더 많이 참여하는 것으로 나타났다. 한국 학생들과 마찬가지로 신체 활동의 강도 수준이 높아질수록 여학생 참여도는 감소했으나, 연구 과정에서 일본과 한국의 남학생보다 여학생이 더 많은 체중을 감량한 것으로 나타났다. BMI 순위와 경증 및 중등도 신체 활동과의 상관관계는 운동 기간이 “4일 이하”인지 “5일 이상”인지에 따라 “정상체중” 또는 “저체중”에서의 운동 기간에서 나오는 참가자의 관점에서의 차이가 관찰되었다. 또한 격렬한 신체 활동에 참여한 학생과 그렇지 않은 학생 간에BMI 순위의 차이가 관찰되었다. 후자 그룹은 "저체중" 학생 비율이 낮고 "정상체중" 학생 비율이 더 높은 것으로나타났다. 체중을 감량한 일본인 학생들의 대다수는 중등도의 격렬한 신체 활동을 하지 않았으며, 또한 체중을 감량한 한국 학생들보다 운동한 날은 적은 것으로 나타났다. 따라서 일본 학생들과 관련한 데이터는 신체 활동의 강도와 체중 조절 사이에서 약한 상관관계가 있음을 보여주었다.

In vitro Flowering of Transgenic European Pear (Pyrus communis L.) Expressing Citrus FT (CiFT) Gene and New Tool for Gene Function Analysis

Kazuo Ikeda,Narumi Matsuda,Miho Kurosaka,Reiko Endo,Kenji Isuzugawa,Tomoko Endo,Mitsuo Omura,Tadashi Takashina 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-

Connective Tissue Growth Factor Neutralization Aggravates the Psoriasis Skin Lesion: The Analysis of Psoriasis Model Mice and Patients

( Kunihiro Hayakawa ),( Keigo Ikeda ),( Maki Fujishiro ),( Yuko Yoshida ),( Takuya Hirai ),( Hiroshi Tsushima ),( Tomoko Miyashita ),( Shinji Morimoto ),( Yasushi Suga ),( Kenji Takamori ),( Hideoki O 대한피부과학회 2018 Annals of Dermatology Vol.30 No.1

Background: Connective tissue growth factor (CTGF) is a multifunctional cellular protein and playing a role as a central mediator in tissue remodeling and fibrosis. The physiological function of CTGF in psoriasis is unknown. Objective: The purpose of this study was to investigate the function of CTGF in psoriasis using the established imiquimod (IMQ)- induced psoriasis murine model and psoriasis patients. Methods: Anti-CTGF monoclonal antibody was applied to IMQ induced psoriasis mice and those skin were clinically, pathologically and immunologically analyzed. Additionally, CTGF expression was analyzes using skin samples and plasma from psoriasis patients. Results: CTGF expression was observed in the dermis from both IMQ-induced psoriatic mice and psoriasis patients. CTGF inhibition using an anti-CTGF antibody slightly worsened IMQ-induced dermatitis. In addition, the increase of CTGF showed tendency to suppress the psoriatic dermatitis through inhibition of suprabasal cells proliferation and macrophage infiltration in the skin. CTGF was also detected significantly higher in plasma from psoriasis patients comparing with healthy control. Conclusion: Our findings suggest that CTGF could contribute to the healing rather than the worsening of psoriasis skin lesions. (Ann Dermatol 30(1) 47∼53, 2018)

Glycomics meets histopathology: Lectin microarray can profile the whole glycoproteins in specific groups of cells isolated by laser microdissection

Atsushi Kuno,Masaharu Nomura,Hideki Matsuzaki,Tomoko Nakagawa,Atsushi Matsuda,Yoshitoshi Hirao,Masao Sasaki,Norihiro Ikeda,Toshitaka Nagao,Yuzuru Ikehara,Hisashi Narimatsu 한국당과학회 2012 한국당과학회 학술대회 Vol.2012 No.1

Cell glycome is defined by the glyco synthesis machinery regulated by harmonized expression of more than 100 glycogenes. The machinery-dependent glycome drastically shifts during cell progression and differentiation in association with tumorigenesis and malformation, and thus it motivates us to discover the disease-related alteration in glycosylation. Glycan-targeted histochemical approaches using lectin and anti-glycogene antibodies have provided some key information to characterize specific histological types of cells in pathology. However, this approach is not suitable for the comprehensive analysis targeting the cell glycome, and thus may fail to provide insight into glycome shift during the disease progression. Several years ago, we developed the methodology for rapid and systematic glycome shift analysis targeting formalin-fixed tissue specimens by means of lectin microarray. The resultant method enabled simultaneous observation of over 40 lectins interacted with glycoproteins in 1 mm2 of the tissue specimens. Recently, we sophisticated this methodology to be suitable for comparative analysis of a series of cells in specific groups isolated from a single tissue specimen by laser microdissection, and now our research has gained interest in the variability and distribution of cell glycome in the tissue, i.e., “tissue glycome mapping”. In this meeting, we will summarize the advantage of this new methodology and its application for glyco-biomarker discovery, as well as the construction of “tissue glycome atlas”.

The Influence of Slope Direction and Angle on the Covering Speed of Centipedegrass (Eremochloa ophiuroides (Munro) Hack.)

Kiyoshi Hirano,Miya Kitagawa,Miwa Nakano,Yoshito Yamamoto,Tomoko Nishida,Kentaro Ikeda,Hiroyuki Sasaki 한국초지조사료학회 2009 한국초지조사료학회 학술대회논문집 Vol.2009 No.08

In order to easily and rapidly establish low-cost grazing grasslands using centipedegrass (Eremochloa ophiuroides (Munro) Hack.) (CG) on abandoned cultivated land, the influences of slope direction and angle on the covering speed of CG were investigated. We established 61 quadrats at varying slope directions and angles, and the planting of CG was performed in 2003. The covering speed of CG was investigated from 2003 to 2008, and the years of point of inflection (YPI) was calculated. The most rapid YPI was 1.0-1.5 years in the quadrats in the S5°W direction with 0 degree slopes, while the slowest YPI was 3.0-3.5 years in the quadrats in the northern direction with 10-20 degree slopes. Therefore, grassland renovation using low quantities of CG seeds, which are sold at a high price in Japan, is favorable on land in the southern direction and with a lower slope.