1.Effectiveness of combined aerobic and resistance training circuit on daily physical activity among community-dwelling older people
Shuichi Obuchi ; Hisashi Kawai ; Seigo Mitsutake ; Saori Anzai ; Tomohiro Inomata ; Hikaru Saito ; Hitomi Tsuda ; Tomoharu Nakajima
Japanese Journal of Physical Fitness and Sports Medicine 2015;64(3):305-314
The purpose of this study was to determine the effectiveness of combined aerobic and resistance training circuit on daily physical activity, motor function, and health-related QOL among community-dwelling women aged over 65. Of 102 subjects recruited from the local community, 60 met the inclusion criteria. The subjects were randomly divided into two groups: intervention and control. The intervention group was asked to participate in 60 minutes of combined aerobic and resistance training circuit three times a week for 3 months, while the control group was asked to participate in a study circle once a month for 3 months. Daily physical activity was measured by an activity monitor, and questionnaire, physical functioning, and health related QOL were measured before and after intervention. Daily physical activity as measured by the activity monitor increased significantly in the intervention group but not in the control group, although daily physical activity as measured by questionnaire did not significantly differ between groups. Distance walked over 6 minutes significantly increased in the intervention group than in the control group. No significant difference was found in health related QOL between groups. We conclude that combined aerobic and resistance training circuit is effective for increasing daily activity in community-dwelling older women and for enhancing physical function.
2.Ten Years' Experience of Aortic Annulus Ectasia and Ascending-Arch Aortic Aneurysm Cases in Adult Congenital Heart Disease
Masami Shingaki ; Shigeyuki Aomi ; Hideyuki Tomioka ; Masaki Saso ; Kazufumi Omori ; Hiroaki Yusa ; Hikaru Ishii ; Takashi Azuma ; Satoshi Saito ; Kenji Yamazaki
Japanese Journal of Cardiovascular Surgery 2014;43(5):254-259
Background : The improvement in surgical results for congenital heart disease has resulted in an increase in the number of adult congenital heart disease (ACHD) cases. Some ACHD patients are known to develop thoracic aortic aneurysm (TAA) at a young age, so we examined TAA in ACHD patients presenting at our institute over a 10-year interval. Methods : From 2002 to 2011, we performed 32 cases of surgery for TAA in ACHD patients. We excluded 5 cases of adult bicuspid aortic valve, 2 of TAA with untreated congenital heart disease (CHD), 1 of Marfan syndrome with CHD, and 9 of coarctation of the aorta (CoA) repair for the same site ; 15 patients were included. Results : The male/female ratio was 13/2, and the age of reoperation was 33.3±10.8 years. The 15 ACHD patients included 5 cases of the tetralogy of Fallot (TOF), 4 of congenital aortic stenosis (AS), 3 of ventricular septal defect (VSD), and 1 of each CoA complex, polysplenia/double outlet right ventricle (DORV), and polysplenia/corrected transposition of the great arteries (cTGA). Twelve cases of root dilatation and 2 of ascending aortic aneurysm were observed and 10 cases were concomitant with moderate to severe aortic regurgitation. Thirteen cases underwent elective surgery and the other two cases were emergency surgeries : a Bentall procedure for type 2 acute aortic dissection of polysplenia/DORV, and a Bentall and right ventricular outflow reconstruction (RVOTR) for ascending aorta/right ventricle rupture due to Konno patch detachment in congenital AS. The 13 elective cases included 11 cases of Bentall procedure, 1 of ascending aorta/hemi arch replacement, and 1 of ascending aorta replacement. Concomitant procedures were 1 case of aortic valve replacement, 1 of mitral valve replacement, 1 of subaortic stenosis release, and 2 of RVOTR. Operation time was 572.8+/-101.4 min, cardiopulmonary bypass time was 295.8+/-100.2 min, and aorta clamp time was 188.1+/-58.8 min. One hospital death was observed in 1 emergency case due to methicillin-resistant Staphylococcus aureus (MRSA) sepsis, but no 30-day mortality was observed. Intensive care unit (ICU) stay was 9.4+/-10.1 days and hospital stay was 34.4+/-18.2 days. Conclusion : The most common ACHD found during TAA surgery in our institute was Tetralogy of Fallot. ACHD had various complications and restrictions for surgery but TAA surgery in ACHD patients was safe and feasible.
3.Risk Factors for Stroke in Akita Prefecture
Tetsuya SAKAMOTO ; Kenjiro SHINDO ; Yasufumi KIKUCHI ; Kenichi AKASAKA ; Nobuko SAITO ; Tsuneo YASUDA ; Katsuya FUTAWATARI ; Kenichi ASAKURA ; Kenji KIKUCHI ; Hikaru OOISHI ; Motohiro YONEYA ; Toshiro OOTSUKA ; Masato HAYASHI ; Kazuo SUZUKI
Journal of the Japanese Association of Rural Medicine 2008;57(5):698-703
In Akita Prefecture, there are nine hospitals established by the Akita Prefectural Federation of Agricultural Cooperatives for Health and Welfare (Koseiren). Half of the stroke patients in the prefecture were treated in these Koseiren hospitals, and half of the mass screening projects for the prevention of cardio vascular diseases were undertaken by these hospitals. A retrospective cohort study was done using mass-screening data (age, sex, past history of diabetes mellitus, blood pressure, body mass index, smoking and drinking habits) of 175,033 cases stored at these hospitals from 1988 to 1999, and the prefecture-wide stroke data of 2,520 initial stroke events registered from 1988 to 2003. The number of stroke cases was broken down into 1,428 cases of cerebral infarction (57%, CI), 693 cases of cerebral hemorrhage (27%, CH) and 399 cases of subarachnoid hemorrhage (16%, SAH). The subjects were also divided into five age groups:30-49, 50-59, 60-69, 70-79 and 80-89. Blood pressure (BP) was classified into six categories according to the JNC 6 criteria. Risk factors were determined using the Cox analysis. The hazard ratio for CI and CH was increasing with advancing age. CI showed a higher hazard ratio in men than women (hazard ratio for men was 1.8). The hazard ratio was increasing as BP became higher in any of three stroke subtypes, and especially CH showed the strongest correlation with BP. Uncontrollable risk factors were very closely associated with the attack of CI. On the other hand, BP (controllable risk) was closely linked with the attack of CH. Our results showed the prevention of CI was not easy. Controlling BP may be the most effective strategy for preventing hemorrhagic stroke (CH and SAH).
Cerebrovascular accident
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Cephalic index
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Blood pressure determination
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hazard
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Risk Factors
4.Analysis of bone in adenine-induced chronic kidney disease model rats
Hikaru SAITO ; Naohisa MIYAKOSHI ; Yuji KASUKAWA ; Koji NOZAKA ; Hiroyuki TSUCHIE ; Chiaki SATO ; Kazunobu ABE ; Ryo SHOJI ; Yoichi SHIMADA
Osteoporosis and Sarcopenia 2021;7(4):121-126
Objectives:
The purpose of this study is to investigate the stage of chronic kidney disease (CKD) in adenine-induced CKD model rats by serum analyses, and to examine bone mineral density (BMD), bone strength, and microstructure of trabecular and cortical bone in these rats.
Methods:
Eight-week-old, male Wistar rats (n = 42) were divided into 2 groups: those fed a 0.75% adenine diet for 4 weeks until 12 weeks of age to generate CKD model rats (CKD group); and sham rats. The CKD and sham groups were sacrificed at 12, 16, and 20 weeks of age (n = 7 in each group and at 12, 16, and 20 weeks), and various parameters were evaluated, including body weight, renal wet weight, muscle wet weight, renal histology, biochemical tests, BMD, biomechanical testing, and micro-computed tomography (CT). The parameters were compared between the 2 groups at the various time points.
Results:
In the CKD model rats, at 20 weeks of age, serum creatinine, phosphorus, and intact-PTH levels were elevated, and serum calcium levels were normal, indicating that the CKD was stage IV and associated with secondary hyperparathyroidism. Decreased BMDs of the whole body and the femur were observed as bone changes, and micro-CT analysis showed deterioration of bone microstructure of the cortical bone that resulted in decreased bone strength in the cortical and trabecular bone.
Conclusions
These CKD model rats showed stage IV CKD and appear appropriate for evaluating the effects of several treatments for CKD-related osteoporosis and mineral bone disorder.
5.Teriparatide and etelcalcetide improve bone, fibrosis, and fat parameters in chronic kidney disease model rats
Shun IGARASHI ; Yuji KASUKAWA ; Koji NOZAKA ; Hiroyuki TSUCHIE ; Kazunobu ABE ; Hikaru SAITO ; Ryo SHOJI ; Fumihito KASAMA ; Shuntaro HARATA ; Kento OKAMOTO ; Keita OYA ; Naohisa MIYAKOSHI
Osteoporosis and Sarcopenia 2023;9(4):121-130
Objectives:
Chronic kidney disease (CKD) complicated by secondary hyperparathyroidism (SHPT) is associated with an increased risk of fragility fractures. Etelcalcetide (EC) is a treatment for SHPT that reduces serum parathyroid hormone (PTH) levels. However, the effects of combined treatment with osteoporosis drugs such as teriparatide (TPTD) remain unclear. This study investigates the combined effects of EC and TPTD on bone in CKD model rats.
Methods:
The CKD model was established in 8-week-old male Wistar rats by feeding them a 0.75% adenine diet for 4 weeks. At 20 weeks of age, the rats were divided into 4 groups (n = 9–10 in each group): CKD group (vehicle administration), TPTD group (30 μg/kg, 3 times/week), EC group (0.6 mg/kg, daily), and Comb group (TPTD and EC combined). EC was injected for 12 weeks starting at 20 weeks of age, and TPTD was injected for 8 weeks starting at 24 weeks of age. After treatment, the followings were evaluated: bone mineral density, bone strength, biochemical tests, bone and fat histomorphometry, and micro-computed tomography.
Results:
In CKD model rats, the combination of EC and TPTD was more effective in increasing cortical bone thickness and bone strength and inhibiting porosity. In addition, the combined treatment decreased bone marrow adiposity and fibrosis, and it increased bone mass and improved bone microstructure in trabecular bone.
Conclusions
With the observed benefits such as improved bone mass, bone strength, structural properties, and bone marrow adiposity, combination therapy may be a potential way to improve bone fragility in CKD.