1.The Association of Family and Friend Networks with Appetite: Structural Equation Modeling of the Indirect Effects of Depression among Community-Dwelling Older Adults
Kento NORITAKE ; Keisuke FUJII ; Daiki NAKASHIMA ; Yuta KUBO ; Kyosuke YOROZUYA ; Naoki TOMIYAMA ; Takahiro HAYASHI ; Fumihiko GOTO ; Hidehiro WATANABE ; Akihiro YOSHIDA
Annals of Geriatric Medicine and Research 2025;29(1):131-137
Background:
Appetite loss in older adults raises the risk of malnutrition and frailty. The recent emphasis on psychological and social support for appetite loss reveals the importance of robust social networks. Depression is linked to a decline in appetite and social networks. Social networks may influence appetite directly and indirectly through depression. This exploratory cross-sectional study categorizes social networks into family and friend networks to elucidate their direct and indirect effects.
Methods:
The study analyzed 193 community-dwelling older adults (women 78.2%; mean age 77.1±5.3 years) who participated in health-checkup events in two cities in Japan. Appetite was assessed using the Japanese version of the Simplified Nutritional Appetite Questionnaire, and family and friend networks were assessed using the Lubben Social Network Scale-6. Depression was assessed using the Geriatric Depression Scale-15. Based on previous research, we constructed a causal model examining the impacts of family and friend social networks and depression on appetite and calculated the direct and indirect effects through structural equation modeling.
Results:
The family network had a direct effect on appetite (path coefficient=0.18) and an indirect effect via depression (path coefficient=0.0608). Conversely, the friend network was not directly associated with appetite but had an indirect effect through depression (path coefficient=0.095). The model exhibited a good fit. The mechanism of influence on appetite varied between the networks.
Conclusion
To prevent appetite loss, social networks with family and friends should be assessed separately, and tailored support should be provided for each.
2.The Association of Family and Friend Networks with Appetite: Structural Equation Modeling of the Indirect Effects of Depression among Community-Dwelling Older Adults
Kento NORITAKE ; Keisuke FUJII ; Daiki NAKASHIMA ; Yuta KUBO ; Kyosuke YOROZUYA ; Naoki TOMIYAMA ; Takahiro HAYASHI ; Fumihiko GOTO ; Hidehiro WATANABE ; Akihiro YOSHIDA
Annals of Geriatric Medicine and Research 2025;29(1):131-137
Background:
Appetite loss in older adults raises the risk of malnutrition and frailty. The recent emphasis on psychological and social support for appetite loss reveals the importance of robust social networks. Depression is linked to a decline in appetite and social networks. Social networks may influence appetite directly and indirectly through depression. This exploratory cross-sectional study categorizes social networks into family and friend networks to elucidate their direct and indirect effects.
Methods:
The study analyzed 193 community-dwelling older adults (women 78.2%; mean age 77.1±5.3 years) who participated in health-checkup events in two cities in Japan. Appetite was assessed using the Japanese version of the Simplified Nutritional Appetite Questionnaire, and family and friend networks were assessed using the Lubben Social Network Scale-6. Depression was assessed using the Geriatric Depression Scale-15. Based on previous research, we constructed a causal model examining the impacts of family and friend social networks and depression on appetite and calculated the direct and indirect effects through structural equation modeling.
Results:
The family network had a direct effect on appetite (path coefficient=0.18) and an indirect effect via depression (path coefficient=0.0608). Conversely, the friend network was not directly associated with appetite but had an indirect effect through depression (path coefficient=0.095). The model exhibited a good fit. The mechanism of influence on appetite varied between the networks.
Conclusion
To prevent appetite loss, social networks with family and friends should be assessed separately, and tailored support should be provided for each.
3.The Association of Family and Friend Networks with Appetite: Structural Equation Modeling of the Indirect Effects of Depression among Community-Dwelling Older Adults
Kento NORITAKE ; Keisuke FUJII ; Daiki NAKASHIMA ; Yuta KUBO ; Kyosuke YOROZUYA ; Naoki TOMIYAMA ; Takahiro HAYASHI ; Fumihiko GOTO ; Hidehiro WATANABE ; Akihiro YOSHIDA
Annals of Geriatric Medicine and Research 2025;29(1):131-137
Background:
Appetite loss in older adults raises the risk of malnutrition and frailty. The recent emphasis on psychological and social support for appetite loss reveals the importance of robust social networks. Depression is linked to a decline in appetite and social networks. Social networks may influence appetite directly and indirectly through depression. This exploratory cross-sectional study categorizes social networks into family and friend networks to elucidate their direct and indirect effects.
Methods:
The study analyzed 193 community-dwelling older adults (women 78.2%; mean age 77.1±5.3 years) who participated in health-checkup events in two cities in Japan. Appetite was assessed using the Japanese version of the Simplified Nutritional Appetite Questionnaire, and family and friend networks were assessed using the Lubben Social Network Scale-6. Depression was assessed using the Geriatric Depression Scale-15. Based on previous research, we constructed a causal model examining the impacts of family and friend social networks and depression on appetite and calculated the direct and indirect effects through structural equation modeling.
Results:
The family network had a direct effect on appetite (path coefficient=0.18) and an indirect effect via depression (path coefficient=0.0608). Conversely, the friend network was not directly associated with appetite but had an indirect effect through depression (path coefficient=0.095). The model exhibited a good fit. The mechanism of influence on appetite varied between the networks.
Conclusion
To prevent appetite loss, social networks with family and friends should be assessed separately, and tailored support should be provided for each.
4.Peripheral blood mitochondrial DNA copy number as a predictor of steatotic liver disease development: insights from epidemiological and experimental studies.
Genki MIZUNO ; Atsushi TESHIGAWARA ; Hiroya YAMADA ; Eiji MUNETSUNA ; Yoshiki TSUBOI ; Yuji HATTORI ; Mirai YAMAZAKI ; Yoshitaka ANDO ; Itsuki KAGEYAMA ; Takuya WAKASUGI ; Naohiro ICHINO ; Keisuke OSAKABE ; Keiko SUGIMOTO ; Ryosuke FUJII ; Hiroaki ISHIKAWA ; Nobutaka OHGAMI ; Koji OHASHI ; Koji SUZUKI
Environmental Health and Preventive Medicine 2025;30():42-42
BACKGROUND:
Mitochondria, which harbor their own genome (mtDNA), have attracted attention due to the potential of mtDNA copy number (mtDNA-CN) as an indicator of mitochondrial dysfunction. Although mtDNA-CN has been proposed as a simple and accessible biomarker for metabolic disorders such as metabolic dysfunction-associated steatotic liver disease, the underlying mechanisms and the causal relationship remain insufficiently elucidated. In this investigation, we combined longitudinal epidemiological data, animal studies, and in vitro assays to elucidate the potential causal relationship between reduced mtDNA-CN and the development of steatotic liver disease (SLD).
METHODS:
We conducted a longitudinal study using data from a health examination cohort initiated in 1981 in Yakumo, Hokkaido, Japan. Data from examinations performed in 2015 and 2022 were analyzed, focusing on 76 subjects without SLD at baseline (2015) to assess the association between baseline mtDNA-CN and subsequent risk of SLD development. In addition, 28-day-old SD rats were fed ad libitum on a 45% high-fat diet and dissected at 2 and 8 weeks of age. Blood and liver mtDNA-CN were measured and compared at each feeding period. Additionally, in vitro experiments were performed using HepG2 cells treated with mitochondrial function inhibitors to induce mtDNA-CN depletion and to examine its impact on intracellular lipid accumulation.
RESULTS:
Epidemiological analysis showed that the subjects with low mtDNA-CN had a significantly higher odds ratio for developing SLD compared to high (odds ratio [95% confidence interval]: 4.93 [1.08-22.50]). Analysis of the animal model showed that 8 weeks of high-fat diet led to the development of fatty liver and a significant decrease in mtDNA-CN. A further 2 weeks of high-fat diet consumption resulted in a significant decrease in hepatic mtDNA-CN, despite the absence of fatty liver development, and a similar trend was observed for blood. Complementary in vitro experiments revealed that pharmacologically induced mitochondrial dysfunction led to a significant reduction in mtDNA-CN and was associated with increases in intracellular lipid accumulation in HepG2 cells.
CONCLUSIONS
Our findings suggest that reduced mtDNA-CN may contribute causally to SLD development and could serve as a convenient, noninvasive biomarker for early detection and risk assessment.
Animals
;
DNA, Mitochondrial/genetics*
;
Humans
;
Male
;
DNA Copy Number Variations
;
Female
;
Fatty Liver/blood*
;
Rats
;
Middle Aged
;
Longitudinal Studies
;
Rats, Sprague-Dawley
;
Adult
;
Japan/epidemiology*
;
Aged
;
Biomarkers/blood*
;
Hep G2 Cells
;
Diet, High-Fat/adverse effects*
5.A Rare Case of Cornelia de Lange Syndrome Achieving Intracardiac Repair of Tetralogy of Fallot Following Ectopic Patent Ductus Arteriosus Banding
Keisuke TANAKA ; Yuzo KATAYAMA ; Sho ISOBE ; Kota KAWADA ; Yoshio NUNOI ; Masanori HARA ; Hiroshi MASUHARA ; Noritsugu SHIONO ; Takeshiro FUJII ; Yoshinori WATANABE
Japanese Journal of Cardiovascular Surgery 2022;51(1):1-5
We describe the case of a 1-year and 7-month-old girl who was born at 36 weeks and 6 days of pregnancy weighing 1,351 g. In addition to the diagnosis of Cornelia de Lange syndrome and Tetralogy of Fallot, we confirmed shunt blood flow from the lesser curvature of the aortic arch to the main pulmonary artery. Thus, we additionally diagnosed ectopic patent ductus arteriosus (PDA). Ultrasonography showed interruption and retrograde flow of the diastolic blood flow in the anterior cerebral artery. Therefore, we made a diagnosis of blood stealing due to an ectopic PDA, and we performed surgical intervention via a median sternotomy at 25 days. When we ligated the shunt blood vessel, the percutaneous oxygen saturation decreased from the high 90% range to the low 70% range, thus we temporarily released the ligation. We narrowed the ectopic PDA so that the percutaneous oxygen saturation could be maintained the high 80% range. Postoperative ultrasonography showed improvement of the pressure waveform in the anterior cerebral artery. After discharge, oxygen demand increased gradually with weight gain, and we performed intracardiac repair using a monocusp valve patch at 1 year and 7 months. We report a rare case of Cornelia de Lange syndrome wherein we achieved intracardiac repair of Tetralogy of Fallot after ectopic PDA banding in the neonatal period.
6.A Case of Brugada Syndrome Treated With Percutaneous Epicardial Catheter Ablation
Masahiro OGAWA ; Yoshiyuki HYOUDOU ; Masayuki OKIJIMA ; Hirotaka INOUE ; Kouji KONDOU ; Yuki FUJII ; Atsuya SAKAIDE ; Keisuke TSUJIKAWA ; Kazuyoshi NISHIYAMA ; Ryouta TANI ; Izumi OHTA ; Mizuki ENDOU ; Kimitoshi SANO ; Kenji NAKAMAE ; Shinji KANEKO ; Masaya FUJITA ; Yousuke TATAMI ; Osamu KAWAGUCHI
Journal of the Japanese Association of Rural Medicine 2020;69(4):385-
This case report describes our first experience performing percutaneous epicardial catheter ablation for Burugada syndrome in our hospital. We describe the good results achieved in this case. The patient was a man in his 30s with no remarkable medical history. However, his family history was notable for the sudden death of his grandfather at age 37 years and his father at age 27 years. While asleep, the patient experienced convulsions and lost consciousness. During emergency transportation, defibrillation was performed 7 times by the ambulance crew. When the patient arrived at our hospital, sinus rhythm was observed on ECG. During resuscitation, Burugada syndrome was diagnosed based on ECG findings. On hospital day 6, an internal cardioverter defibrillator was implanted. After discharge, the defibrillator operated 10 times, so we opted for ablation treatment. Fractionated potential of over 150 ms was confirmed in the right ventricular outflow tract. A low voltage zone of <1 mV could be mapped, and the same site was cauterized a total of 46 times. As a result, ST segment amplitude decreased significantly in lead V1 on ECG. Percutaneous epicardial catheter ablation performed with reference to Nademanee’s report achieved good results in this case of Burugada syndrome.
7.Reliability Comparison between “Distal Radius and Ulna” and “Simplified Tanner–Whitehouse III” Assessments for Patients with Adolescent Idiopathic Scoliosis
Akinori OKUDA ; Hideki SHIGEMATSU ; Hiromasa FUJII ; Eiichiro IWATA ; Masato TANAKA ; Yasuhiko MORIMOTO ; Keisuke MASUDA ; Yusuke YAMAMOTO ; Yasuhito TANAKA
Asian Spine Journal 2020;14(3):280-286
Methods:
We retrospectively evaluated 54 hands of 40 girls with AIS who visited Nara Medical University Hospital from 2000 to 2015 using previously collected radiographs. The examiners included a spine surgeon and a pediatric orthopedic surgeon, each with over 10 years of experience. The reliability of the DRU and sTW3 was evaluated using the kappa coefficient.
Results:
The left-hand radiographs of 40 female patients with AIS (mean age, 13.9±1.7 years; N=54 hands) were evaluated by two blinded examiners using the sTW3 and DRU methods. The highest inter-observer and intra-observer reliabilities (kappa, 0.64 and 0.62, respectively) for radius evaluation were determined. Radius evaluation by the DRU showed the highest agreement rate and smallest error between the inter- and intra-observer examinations.
Conclusions
The DRU was the most reliable assessment tool, and it has the potential to be useful for precisely determining the stage of skeletal maturity in outpatient clinics.
8.Influence of seasonal variations on physical activity in older people living in mountainous agricultural areas
Daiki NAKASHIMA ; Daisuke KIMURA ; Hidehiro WATANABE ; Fumihiko GOTO ; Miki KATO ; Keisuke FUJII ; Eri KASUYA ; Naoki TOMIYAMA ; Ryuichi HASEGAWA
Journal of Rural Medicine 2019;14(2):165-175
Objectives: Increasing activity levels in older people is important for maintaining quality of life and ameliorating the risks of morbidity related to falls, depression, and dementia. This study aimed to clarify the seasonal variation effects on total energy expenditure, number of steps, time spent in low- and moderate- or high-intensity physical activities, and daily activities performed.Patients and Methods: This was a cross-sectional study of 22 community-dwelling older individuals (3 men, 19 women; mean age, 75.1 ± 7.3 years) living in three districts of Gero, Gifu, who participated in the Gero Salon Project hosted by the Social Welfare Councils. Evaluations were conducted in each season from September 2016 to August 2017. We used a uniaxial accelerometer, the Lifecorder device, which measures physical activity, and the Physical Activity Scale for the Elderly to evaluate activities of daily living. Data were analyzed using the multiple comparisons (Bonferroni correction) method.Results: Total energy expenditure and time spent in moderate- or high-intensity activities did not show seasonal variations. However, the lowest number of steps was taken during the winter, and the number of steps increased significantly from winter to spring. The time spent in low-intensity physical activities was significantly longer in the spring and summer than in the winter. There was no significant seasonal difference in total Physical Activity Scale for the Elderly score, leisure activities, domestic activities, or work-related activities. However, there was a significant difference between the summer and winter scores in “outdoor gardening,” with the lowest score observed during the winter.Conclusions: With climate changes in the winter months, “outdoor gardening” becomes difficult, thus decreasing the number of steps taken. Therefore, it is necessary to identify other ways for older people to maintain physical activity during the winter season.
9.Predictive Value of Localized Stenosis of the Main Pancreatic Duct for Early Detection of Pancreatic Cancer
Yoshihide KANNO ; Shinsuke KOSHITA ; Takahisa OGAWA ; Hiroaki KUSUNOSE ; Kaori MASU ; Toshitaka SAKAI ; Keisuke YONAMINE ; Yujiro KAWAKAMI ; Yuki FUJII ; Kazuaki MIYAMOTO ; Toji MURABAYASHI ; Fumisato KOZAKAI ; Jun HORAGUCHI ; Yutaka NODA ; Masaya OIKAWA ; Takaho OKADA ; Kei ITO
Clinical Endoscopy 2019;52(6):588-597
BACKGROUND/AIMS: In this study, we aimed to evaluate the predictive value of localized stenosis of the main pancreatic duct (MPD) for early detection of pancreatic cancer.METHODS: Among 689 patients who underwent endoscopic retrograde pancreatography from January 2008 to September 2018, 19 patients with MPD findings were enrolled. These patients showed findings for indicating suspicious pancreatic cancer at an early stage (FiCE); FiCE was defined as a single, localized stenosis in the MPD without a detectable mass (using any other imaging methods) and without other pancreatic diseases, such as definite chronic pancreatitis, intraductal papillary mucinous neoplasm, and autoimmune pancreatitis. Final diagnoses were established by examining resected specimens or through follow-up examinations after an interval of >5 years.RESULTS: Among 19 patients with FiCE, 11 underwent surgical resection and 8 were evaluated after a >5-year observation period. The final diagnosis of the MPD stenosis was judged to be pancreatic cancer in 9 patients (47%), including 3 with intraepithelial cancer, and to be a non-neoplastic change in 10. The sensitivity, specificity, and accuracy of preoperative pancreatic juice cytology were 75%, 100%, and 88%, respectively.CONCLUSIONS: The predictive value of FiCE for pancreatic cancer prevalence was 47%. Histological confirmation with pancreatic juice cytology is necessary before surgical resection.
Cholangiopancreatography, Endoscopic Retrograde
;
Constriction, Pathologic
;
Diagnosis
;
Follow-Up Studies
;
Humans
;
Mucins
;
Pancreatic Diseases
;
Pancreatic Ducts
;
Pancreatic Juice
;
Pancreatic Neoplasms
;
Pancreatitis
;
Pancreatitis, Chronic
;
Prevalence
;
Sensitivity and Specificity
10.Effects of dehydration on echocardiographic diastolic parameters in healthy cats
Keisuke SUGIMOTO ; Nana KAWASE ; Takuma AOKI ; Yoko FUJII
Journal of Veterinary Science 2019;20(3):e18-
This study aimed to assess the effects of dehydration on echocardiographic indices in healthy cats: specifically, it aimed to assess the effects of volume depletion on diastolic function. Nine experimental cats were subjected to both a dehydration and placebo protocol separated by a 21-day washout period. Echocardiography was performed at baseline and on completion of each protocol. Results were compared between the two protocols. Volume depletion was induced by intravenous administration of furosemide. Volume depletion showed a significant association with increased interventricular septal and left ventricular free wall thickness at end-diastole, decreased left ventricular internal diameter at end-diastole, and left atrial diameter at end-systole. The peak early (E) and late (A) diastolic filling velocities, and the peak early diastolic velocities (E′) were significantly decreased by dehydration. Volume depletion did not affect peak longitudinal strain rate during early diastole, E/A, or E/E′. Volume depletion significantly affected the echocardiographic diastolic indices and conventional echocardiographic parameters in healthy cats.
Administration, Intravenous
;
Animals
;
Cats
;
Dehydration
;
Diastole
;
Echocardiography
;
Furosemide
;
Hypertrophy


Result Analysis
Print
Save
E-mail