Vitronectin (VN) is an extracellular matrix protein with a crucial role in regulating bone remodeling. In this study, we aimed to investigate the effect of VN deficiency in a mouse model of osteoporosis induced by ovariectomy (OVX).The findings revealed that the absence of VN led to an increase in the activity of tartrate-resistant acid phosphatase (TRAP), a marker for osteoclasts, in the plasma of OVX-operated mice. TRAP staining further demonstrated that VN deficiency resulted in a higher number of osteoclasts within the femurs of OVX-operated mice. X-ray micro-computed tomography analysis of the femurs in OVX-operated mice indicated that VN deficiency significantly suppressed the OVX-induced increase of marrow area and total volume of bone. Additionally, we assessed structural model index (SMI) and degree of anisotropy (DA) as indices of osteoporosis. The results showed that VN deficiency effectively attenuated the OVX-induced increase in SMI and DA among OVX-operated mice. In summary, our study demonstrates the vital role of VN in regulating osteoclastogenesis and bone remodeling in the mouse model of osteoporosis.

Vitronectin (VN) is an extracellular matrix protein with a crucial role in regulating bone remodeling. In this study, we aimed to investigate the effect of VN deficiency in a mouse model of osteoporosis induced by ovariectomy (OVX).The findings revealed that the absence of VN led to an increase in the activity of tartrate-resistant acid phosphatase (TRAP), a marker for osteoclasts, in the plasma of OVX-operated mice. TRAP staining further demonstrated that VN deficiency resulted in a higher number of osteoclasts within the femurs of OVX-operated mice. X-ray micro-computed tomography analysis of the femurs in OVX-operated mice indicated that VN deficiency significantly suppressed the OVX-induced increase of marrow area and total volume of bone. Additionally, we assessed structural model index (SMI) and degree of anisotropy (DA) as indices of osteoporosis. The results showed that VN deficiency effectively attenuated the OVX-induced increase in SMI and DA among OVX-operated mice. In summary, our study demonstrates the vital role of VN in regulating osteoclastogenesis and bone remodeling in the mouse model of osteoporosis.

Vitronectin (VN) is an extracellular matrix protein with a crucial role in regulating bone remodeling. In this study, we aimed to investigate the effect of VN deficiency in a mouse model of osteoporosis induced by ovariectomy (OVX).The findings revealed that the absence of VN led to an increase in the activity of tartrate-resistant acid phosphatase (TRAP), a marker for osteoclasts, in the plasma of OVX-operated mice. TRAP staining further demonstrated that VN deficiency resulted in a higher number of osteoclasts within the femurs of OVX-operated mice. X-ray micro-computed tomography analysis of the femurs in OVX-operated mice indicated that VN deficiency significantly suppressed the OVX-induced increase of marrow area and total volume of bone. Additionally, we assessed structural model index (SMI) and degree of anisotropy (DA) as indices of osteoporosis. The results showed that VN deficiency effectively attenuated the OVX-induced increase in SMI and DA among OVX-operated mice. In summary, our study demonstrates the vital role of VN in regulating osteoclastogenesis and bone remodeling in the mouse model of osteoporosis.

1) A BLS training program was held for the first-year students of Tokai University School of Medicine in 2007/08.
2) The training program was based on the objective structured clinical examination. In 2007, our faculty directly instructed first-year students. In 2008, under the guidance of faculty members, fifth-year medical students doing clinical clerkships served as student-instructors for teaching first-year students.
3) To assess the BLS training program, questionnaires were completed by both the first-year students and the fifth-year students. The results of the survey showed that all students participated in this program with high motivation and intensity. The first-year students rated the guidance given by student-instructors more highly than that given by faculty members. Moreover, the program appeared to be enjoyable and challenging for the fifth-year medical students. Thus, the preceptor-based BLS training program (the Yanegawara method) potentially motivates both first-year and fifth-year medical students.

We began providing comprehensive cardiac rehabilitation for congestive heart failure (CHF) in 2014 at our institution, using an original pamphlet and heart failure notebook to provide life guidance for CHF. However, the life guidance rate was lower in 2017 (61%) than it was in 2014 (77%). The objective of this study was to investigate the awareness of life guidance among nurses. We administered a questionnaire survey regarding life guidance to 28 nurses in December 2018. Among the 27 respondents, 26 nurses (96%) had high motivation and 21 (80%) felt a sense of accomplishment. Responses to the “most important point in life guidance” were “understanding living condition” by 14 nurses, “heart failure notebook” by 9 nurses, and “guidance using the pamphlet” by 6 nurses. Fifteen nurses (58%) felt that the guidance had become routine in nature, and 5 nurses (19%) were worried about their instruction. The nurses were motivated to provide life guidance, but they also felt that the guidance had become routine because they had been providing the same guidance for many years. We consider that the factors related to the lower life guidance rate are the routine/repetitive nature of the guidance and concerns about instruction. Going forward, we need to review the content of the guidance and the teaching approach.