start-ver=1.4 cd-journal=joma no-vol=105 cd-vols= no-issue= article-no= start-page=1 end-page=5 dt-received= dt-revised= dt-accepted= dt-pub-year=2016 dt-pub=20160201 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Survey on the undernourished university students who tend to lack breakfast ; a proposal for a novel viewpoint for the improvement kn-title=大学生の朝食欠食習慣の統計解析と改善への新指針 en-subtitle= kn-subtitle= en-abstract= kn-abstract=This study investigated the current status and causes underneath the life of university students who tend to lack breakfast at a relatively high frequency, and statistical analysis on consequences leading to such lack of well-nourished eating habitat in their university life. In October 2014, self-assessed questionnaires were administered to over 150 faculty students. It contained questions about breakfast habits, time allowance for the morning class, and lunchtime setting in their high school timetable. Breakfast states were clearly separated in three groups : 68% of students regularly have breakfast throughout the weekdays, 21% students skipping the breakfast occasionally, and 11% student no habit for breakfast at all. The survey on the high school lives revealed that 70% students used to have lunch 30 min later than the lunchtime set in the university timetable, 7% of them had the lunch time even more than 1 h later. Lunchtime varies among high schools, and statistical significance was revealed (p<0.01) that schools with higher deviation scores tend have late lunch beyond 12: 30. Accordingly, university students were given directions to prepare for the timetable reform on postulation of having lunch time over one o’clock. After continuous survey on the breakfast habits during the second semester, more than 90% of students established the habit of breakfast regularly in their university lives with the improved consciousness toward well-balanced healthy breakfast contents for their higher level of education quality. en-copyright= kn-copyright= en-aut-name=TamuraT. en-aut-sei=Tamura en-aut-mei=T. kn-aut-name=田村隆 kn-aut-sei=田村 kn-aut-mei=隆 aut-affil-num=1 ORCID= en-aut-name=IbiT. en-aut-sei=Ibi en-aut-mei=T. kn-aut-name=揖斐隆之 kn-aut-sei=揖斐 kn-aut-mei=隆之 aut-affil-num=2 ORCID= en-aut-name=InagakiK. en-aut-sei=Inagaki en-aut-mei=K. kn-aut-name=稲垣賢二 kn-aut-sei=稲垣 kn-aut-mei=賢二 aut-affil-num=3 ORCID= en-aut-name=KuboY. en-aut-sei=Kubo en-aut-mei=Y. kn-aut-name=久保康隆 kn-aut-sei=久保 kn-aut-mei=康隆 aut-affil-num=4 ORCID= en-aut-name=OkudaK. en-aut-sei=Okuda en-aut-mei=K. kn-aut-name=奥田潔 kn-aut-sei=奥田 kn-aut-mei=潔 aut-affil-num=5 ORCID= affil-num=1 en-affil= kn-affil=岡山大学教務FD 委員会 affil-num=2 en-affil= kn-affil=岡山大学教務FD 委員会 affil-num=3 en-affil= kn-affil=岡山大学教務FD 委員会 affil-num=4 en-affil= kn-affil=岡山大学教務FD 委員会 affil-num=5 en-affil= kn-affil=岡山大学教務FD 委員会 en-keyword=Undernourished students kn-keyword=Undernourished students en-keyword=breakfast kn-keyword=breakfast en-keyword=lunchtime kn-keyword=lunchtime en-keyword=statistical significance kn-keyword=statistical significance END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=12 article-no= start-page=e84186 end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2013 dt-pub=20131227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Proliferation of Luteal Steroidogenic Cells in Cattle en-subtitle= kn-subtitle= en-abstract= kn-abstract=The rapid growth of the corpus luteum (CL) after ovulation is believed to be mainly due to an increase in the size of luteal cells (hypertrophy) rather than an increase in their number. However, the relationship between luteal growth and the proliferation of luteal steroidogenic cells (LSCs) is not fully understood. One goal of the present study was to determine whether LSCs proliferate during CL growth. A second goal was to determine whether luteinizing hormone (LH), which is known have roles in the proliferation and differentiation of follicular cells, also affects the proliferation of LSCs. Ki-67 (a cell proliferation marker) was expressed during the early, developing and mid luteal stages and some Ki-67-positive cells co-expressed HSD3B (a steroidogenic marker). DNA content in LSCs isolated from the developing CL increased much more rapidly (indicating rapid growth) than did DNA content in LSCs isolated from the mid CL. The cell cycle-progressive genes CCND2 (cyclin D2) and CCNE1 (cyclin E1) mRNA were expressed more strongly in the small luteal cells than in the large luteal cells. LH decreased the rate of increase of DNA in LSCs isolated from the mid luteal stage but not in LSCs from the developing stage. LH suppressed CCND2 expression in LSCs from the mid luteal stage but not from the developing luteal stage. Furthermore, LH receptor (LHCGR) mRNA expression was higher at the mid luteal stage than at the developing luteal stage. The overall results suggest that the growth of the bovine CL is due to not only hypertrophy of LSCs but also an increase in their number, and that the proliferative ability of luteal steroidogenic cells decreases between the developing and mid luteal stages. en-copyright= kn-copyright= en-aut-name=YoshiokaShin en-aut-sei=Yoshioka en-aut-mei=Shin kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=AbeHironori en-aut-sei=Abe en-aut-mei=Hironori kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=SakumotoRyosuke en-aut-sei=Sakumoto en-aut-mei=Ryosuke kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=OkudaKiyoshi en-aut-sei=Okuda en-aut-mei=Kiyoshi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Graduate School of Natural Science and Technology, Okayama University affil-num=2 en-affil= kn-affil=Graduate School of Environmental and Life Science, Okayama University affil-num=3 en-affil= kn-affil=Reproductive Biology Research Unit, National Institute of Agrobiological Sciences affil-num=4 en-affil= kn-affil=Graduate School of Natural Science and Technology, Okayama University END start-ver=1.4 cd-journal=joma no-vol= cd-vols= no-issue= article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=200311 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Multiple roles of TNF super family members in corpus luteum function en-subtitle= kn-subtitle= en-abstract= kn-abstract=

The main function of the corpus luteum (CL) is the production of progesterone. Adequate luteal progesterone is crucial for determining the physiological duration of the estrous cycle and for achieving a successful pregnancy. The CL is regulated not only by hypophyseal gonadotropin, but also by a number of cytokines that are locally produced. Tumor necrosis factor-α (TNF) and its specific receptors (TNFR) are present in the CL of many species. TNF plays multiple and likely important roles in CL function throughout the estrous cycle. TNF appears to have luteotropic and luteolytic roles in the CLs. In contrast, Fas ligand (Fas L), another member of TNF super family(TNF-SF), is primarily recognized for its apoptotic actions. Presumably, Fas L binds its cognate receptor (Fas) to induce structural luteolysis. This review is designed to focus on recent studies documenting the expression of TNF and Fas L, their receptors, and intracellular signaling mechanisms in the CL.

en-copyright= kn-copyright= en-aut-name=OkudaKiyoshi en-aut-sei=Okuda en-aut-mei=Kiyoshi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=SakumotoRyosuke en-aut-sei=Sakumoto en-aut-mei=Ryosuke kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=Okayama University affil-num=2 en-affil= kn-affil=Okayama University END