1.Intraosseous Schwannoma of the Mandibular Symphysis: Report of a Case
Goro Kawasaki ; Souichi Yanamoto ; Hajime Yoshida ; Akio Mizuno ; Shuichi Fujita ; Tohru Ikeda
Oral Science International 2010;7(2):76-79
Schwannoma is a benign neoplasm originating from the neural sheath and occurs most commonly in the soft tissues of the head and neck. Intraosseous schwannoma in the maxillofacial region is extremely rare. The present study reports the case of an intraosseous schwannoma located in the mandibular symphysis of a 27-year-old male patient. The tumor was completely excised, and there has been no evidence of recurrence in the nearly two years since the operation. A review of the related literature is also included.
2.The effects of off–campus classes for students in a school of health sciences
Kazumasa Nakagawa ; Keiko Yamada ; Yasuyoshi Asakawa ; Tohru Yoshida ; Mitsuko Ushikubo ; Yumi Sato
Medical Education 2011;42(6):337-345
In Japan, community–based education remains uncommon in undergraduate programs for students in schools of health sciences. The purpose of this study was to examine how students are affected by their participation in off–campus classes, which are considered as a main course of community–based education at the School of Health Sciences, Gunma University.
1)Reports submitted by students after participating in off–campus classes were broken down into sentences (with care being taken that each sentence made sense). The extracted sentences were carefully consolidated by means of the Kawakita Jiro method (affinity diagram).
2)A total of 972 sentences were extracted and were categorized into 3 categories: "enjoy going out to the community," "increased activity through experiences," "awareness of what one wants to be and one's insufficient abilities." Five middle–sized categories and 10 small categories were obtained.
3)Experiences in off–campus classes are expected to increase the activity of students and to have synergic effects with on–campus classes.
4)Community–based education might be effectively included in undergraduate programs for students in schools of health sciences.
3.Relationships between daily life behaviors and physical activity measured using a triaxial accelerometer in elderly community-dwelling Japanese individuals
Masahiro ISHIKUBO ; Tohru YOSHIDA
Journal of Rural Medicine 2020;15(1):8-15
Objective: This study aimed to measure the physical activity (exercise and non-exercise) of community-dwelling elderly Japanese individuals and to investigate the relationships between physical activity and daily life behaviors.Methods: Community-dwelling elderly Japanese individuals who resided in town A, city B, Gunma Prefecture, Japan, and were not certified as requiring long-term care were included in this study. Physical activity in 1 week was measured using a triaxial accelerometer. A self-administered questionnaire was applied to assess daily life behaviors. Hierarchical multiple regression analysis was used to examine the factors affecting physical activity.Results: A total of 107 elderly Japanese (46 men and 61 women) individuals were included. The mean amount of physical activity in men was 37.9 Metabolic equivalents (METs)*h/wk, whereas that in women was 33.8 METs*h/wk. The proportion of exercise to physical activity for men and women was 43.2% and 26.0%, respectively. Men and women took an average of 47,393.7 and 35,305.6 steps/wk, respectively. Step counts and the presence or absence of plant cultivation were the factors associated with the amount of physical activity. The exercise component of physical activity was associated with step count, whereas the non-exercise component was associated with step count, plant cultivation, and frequent outings.Conclusion: Among community-dwelling elderly Japanese individuals, physical activity levels appear to be affected by step count and the presence or absence of certain factors, such as plant cultivation and frequent outings.
4.Vegetable intake frequency is higher among the rural than among the urban or suburban residents, and is partially related to vegetable cultivation, receiving, and purchasing at farmers’ markets: A cross-sectional study in a city within Gunma, Japan
Daisuke MACHIDA ; Tohru YOSHIDA
Journal of Rural Medicine 2018;13(2):116-123
Objectives: This study aimed at identifying the differences in the vegetable intake frequency among rural, suburban, and urban residents. It also intended to estimate the effects of vegetable cultivation, receiving vegetables, and purchasing vegetables at farmers’ markets on the differences in vegetable intake frequency. Based on the results, to promote vegetable intake, we discuss the value of supporting vegetable cultivation in the rural areas.Materials and Methods: We conducted a cross-sectional study targeting residents aged between 20 and 74, living in three parts of a city within the Gunma prefecture in Japan. The three locations were selected to represent the rural, suburban, and urban areas. We mailed two sets of anonymous self-administered questionnaires to all households in the three areas (a total of 2,260 households, comprising about 1,000 people aged between 20 and 74 in each area). The survey requested information on the vegetable intake frequency, vegetable cultivation, frequency of receiving vegetables, frequency of vegetable purchase at farmers’ markets, the subjective difficulty in food-store access, economic circumstances, health attitudes, and demographic characteristics. We used the analysis of covariance (ANCOVA) to examine the data obtained.Results: We received 873 responses (from 586 households), of which 90 were irrelevant, thus leaving a sample of 783 residents (257 rural, 259 suburban, 267 urban) available for statistical analysis. The results revealed that the rural residents had significantly greater vegetable intake frequency than the urban and suburban residents did. These regional differences became smaller after the adjustment of the following variables: vegetable cultivation, receiving vegetables, and vegetable purchase at farmers’ markets. No significant difference was observed in the vegetable intake frequency between the rural and urban respondents after this adjustment was made.Conclusions: Vegetable intake frequency was higher in the rural area than in the suburban and urban areas. Vegetable cultivation, receiving vegetables, and vegetable purchase at farmers’ markets were strongly linked to these regional differences.
5.Negative association of vegetable cultivation with the proportion of severely insufficient vegetable intake both directly and indirectly: A cross-sectional study in a city in Gunma, Japan
Daisuke MACHIDA ; Tohru YOSHIDA
Journal of Rural Medicine 2018;13(2):160-167
Objective: To clarify the relationship between the proportion of severely insufficient vegetable intake frequency and 1) vegetable cultivation, 2) frequency of receiving vegetable among non-cultivators.Materials and Methods: Residents aged 20 to 74 years in three areas of a city in Gunma Prefecture, Japan, were invited to participate. In September 2016, two sets of self-administered questionnaires were mailed to all 2,260 households in the three areas. The survey items covered the frequency of vegetable intake, vegetable cultivation (as a farmer, as a non-farmer, or no-cultivation), frequency of receiving vegetable, and basic characteristics. For vegetable cultivators, we asked the proportion of cultivated vegetables for home consumption and for giving to neighbors. Binomial logistic regression models were used to analyze the data collected. The respondents were classified into two groups according to their vegetable intake frequency: fewer than three times per day (severely insufficient), and at least three times per day.Results: We had 796 valid responses. Using the no-cultivation group as reference, both of the other groups —vegetable cultivation as a farmer, and as a non-farmer— had a significantly smaller proportion of severely insufficient vegetable intake frequency. Among the no-cultivation group, using those who had never received vegetable in the past month as reference, those who rarely, sometimes, or often received vegetables had a significantly smaller proportion of severely insufficient vegetable intake frequency. These associations were similar in cases where vegetable juice was or was not included. The proportion of those who cultivated vegetables for home consumption was 96% among farmers and 100% among non-farmers, respectively, and for giving to neighbors was 84% among farmers and 62% among non-farmers, respectively.Conclusion: A negative association of the proportion of severely insufficient vegetable intake with vegetable cultivation, and with receiving vegetable among non-cultivators, was suggested.
6.Case report on successful treatment for brain abscess in a Japanese monkey (Macaca fuscata)
Laboratory Animal Research 2023;39(2):154-161
Background:
A brain abscess in human beings is a focal infection of the central nervous system frequently characterized by areas of localized cerebritis and central necrosis surrounded by a well vascularized capsule. A brain abscess, although sporadically reported, is relatively rare disease in domestic animals (horses, cattle, goats and alpacas), companion animals (dogs and cats) and laboratory nonhuman primates. Brain abscesses are life threatening disease that needs early and aggressive veterinary therapy.Case presentationThe purpose of this study on a brain abscess in a Japanese monkey was to report the investigational and therapeutic processes including clinical observations, hematological and serum biochemical profiles, and magnetic resonance imaging (MRI) features, probiotic and antibiotic therapy. In clinical observation, the monkey presented with slowly progressive gentle and depressed behavioral change. Hematological findings showed that slightly declined platelet counts gradually increased in the course of the treatment. Serum biochemical profiles revealed initial markedly elevated. A series of chemotherapy provide prominent relief from the influence of the brain abscess. MRI images illustrated that a brain abscess was located in the right frontal lobe and the mass was delineated by a thick rim, indicating the capsule formation stage. The lesion chronologically decreased in size over the course of treatment. Until 11 weeks after treatment of the brain abscess, the size of brain abscess continued to reduce, leaving an organized lesion trace. To the best of my knowledge, this is the first report on successful treatment for a brain abscess in a Japanese monkey (Macaca fuscata).
Conclusions
Medical management of simian brain abscesses is possible based on the controlled and resolving nature of the lesions as determined by MRI and completion of a of chemical antibiotic treatment presented in this study.
7.Trichoblastomas derived from the facial skin with tactile hair in aged house musk shrews (Suncus murinus)
Laboratory Animal Research 2022;38(4):356-362
Background:
Benign hair follicle tumors are relatively rare cutaneous neoplasms arising from hair follicle differentiation. These tumors are slow-growing solitary papules or nodules in the head, face or neck. The aim of this study was to describe 2 cases of trichoblastomas in tactile hair skin incidentally encountered in aged house musk shrews (Suncus murinus). In addition, this case report clarifies whether the characteristics in the tactile hair skin of Suncus murinus are different from those in humans and other animals.Case presentation: The animals were investigated the characteristics of the clinical findings, hematological and serum biochemical profiles (particularly, serum amyloid A levels (vSAA)), and histopathological results. Suncus murinus with the facial tumor showed weight loss and coarse fur. Hematological examinations indicated microcytic and normochromic anemia. Although few apparent changes were serum biochemically found in Suncus murinus, vSAA levels moderately increased and revealed inflammatory reactions. These lesions histopathologically showed the basaloid islands comprising peripheral palisading and dilated microcysts containing variable admixtures of free-floating cells such as neoplasm cells, giant cells, clear cells, mononuclear cells and erythrocytes.
Conclusions
The author concluded that trichoblastomas in Suncus murinusrevealed growth and morphological characteristics that recapitulate part of embryological development in the tactile hair follicles. In the histological structure, their trichoblastomas in the tactile hair skin were different from those found in humans and animals such as cats, dogs and other wildlife.