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Watanabe Y, Yamaguchi T, Tanaka S, Sasaki A, Naitoh T, Matsubara H, Yokote K, Okazumi S, Ugi S, Yamamoto H, Ohta M, Ishigaki Y, Kasama K, Seki Y, Tsujino M, Shirai K, Miyazaki Y, Masaki T, Nagayama D, Saiki A, Tatsuno I. Characteristics of Childhood Onset and Post-Puberty Onset Obesity and Weight Regain after Laparoscopic Sleeve Gastrectomy in Japanese Subjects: A Subgroup Analysis of J-SMART. Obes Facts 2022; 15:498-507. [PMID: 35533661 PMCID: PMC9421694 DOI: 10.1159/000524941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 05/04/2022] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION The psychosocial background of subjects with severe obesity developed from childhood onset obesity (CO) and their outcomes after bariatric surgery have not been fully investigated. METHODS 305 subjects were enrolled in the J-SMART study, which examined the effects of laparoscopic sleeve gastrectomy (LSG) in Japan, and categorized into two groups: CO defined as onset up to 13 years of age (CO group) and post-puberty onset obesity defined as onset after 13 years of age (PPO group). The subjects were followed up for at least 2 years and up to 5 years after LSG. Changes in physical parameters and remission of obesity-related comorbidities were assessed at 2 years after LSG. Weight regain (WR) was also assessed by evaluating the nadir weight after LSG and maximum weight thereafter during follow-up period. RESULTS The mean postoperative follow-up period was 3.0 ± 1.1 years. 40.0% of the subjects had CO and these subjects had higher BMI and HOMA-β and lower age, HbA1c, HDL cholesterol, and visceral/subcutaneous fat area ratio compared to those with PPO. The CO group was also characterized by having higher rates of mental retardation, developmental disorders, and obesity in either parent and lower rate of marriage compared to the PPO group. Two years after LSG, there were no differences in total weight loss and remission rates of diabetes, dyslipidemia, and sleep apnea syndrome between the two groups, although remission rate of hypertension was higher in the CO group. The CO group also had a higher rate of WR after LSG than the PPO group, with CO, BMI, mental disorder, and binge eating contributing to WR. CONCLUSION This study suggests that CO might be associated with genetic and psychosocial factors. CO and PPO probably differ in pathogenesis and may require different treatment strategies.
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Affiliation(s)
- Yasuhiro Watanabe
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan,
| | - Takashi Yamaguchi
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Sho Tanaka
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Akira Sasaki
- Department of Surgery, Iwate Medical University School of Medicine, Iwate, Japan
| | - Takeshi Naitoh
- Department of Lower Gastrointestinal Surgery, Kitasato University School of Medicine, Kanagawa, Japan
| | - Hisahiro Matsubara
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Koutaro Yokote
- Department of Endocrinology, Haematology and Gerontology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Shinichi Okazumi
- Department of Surgery, Toho University Sakura Medical Center, Chiba, Japan
| | - Satoshi Ugi
- Department of Medicine, Shiga University of Medical Science, Shiga, Japan
| | | | - Masayuki Ohta
- Department of Gastroenterological and Pediatric Surgery, Oita University Faculty of Medicine, Oita, Japan
| | - Yasushi Ishigaki
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Iwate Medical University, Iwate, Japan
| | - Kazunori Kasama
- Weight Loss and Metabolic Surgery Center, Yotsuya Medical Cube, Tokyo, Japan
| | - Yosuke Seki
- Weight Loss and Metabolic Surgery Center, Yotsuya Medical Cube, Tokyo, Japan
| | - Motoyoshi Tsujino
- Department of Endocrinology and Metabolism, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - Kohji Shirai
- Department of Internal Medicine, Mihama Hospital, Chiba, Japan
| | | | - Takayuki Masaki
- Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Faculty of Medicine, Oita University, Oita, Japan
| | - Daiji Nagayama
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
- Nagayama Clinic, Tochigi, Japan
| | - Atushito Saiki
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
| | - Ichiro Tatsuno
- Center of Diabetes, Endocrinology and Metabolism, Toho University Sakura Medical Center, Chiba, Japan
- Chiba Prefecture University of Health Sciences, Chiba, Japan
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Sato Y, Nagayama D, Ban N, Kawana H, Nagumo A, Ohira M, Endo K, Saiki A, Shirai K, Tatsuno I. Cardio Ankle Vascular Index (CAVI) is an independent predictor of cardiovascular events. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p1586] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Nagayama D, Saiki A, Endo K, Yamaguchi T, Ban N, Kawana H, Ohira M, Oyama T, Miyashita Y, Shirai K. Improvement of cardio-ankle vascular index by glimepiride in type 2 diabetic patients. Int J Clin Pract 2010; 64:1796-801. [PMID: 20946343 DOI: 10.1111/j.1742-1241.2010.02399.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
AIMS Glimepiride, a third generation sulfonylurea (SU), is known to have extrapancreatic effects, but its vascular effect is unclear. We investigated the efficacy of glimepiride in improving arterial stiffness assessed by cardio-ankle vascular index (CAVI) in type 2 diabetic patients, compared with glibenclamide, a conventional SU. METHODS Forty type 2 diabetic patients were randomly assigned to two groups. One group was administered glimepiride 1.5 mg/day, and the other group was administered glibenclamide 1.25 mg/day for 6 months. RESULTS No significant difference in hypoglycaemic effect was observed between two groups. CAVI significantly decreased only in glimepiride group (9.4 ± 1.4→8.9 ± 0.8, p < 0.05). Decrease in CAVI was greater in glimepiride group than in glibenclamide group (-0.50 ± 0.98 vs. -0.04 ± 0.57, p = 0.048). Urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) decreased in glimepiride group and increased in glibenclamide group, and the changes were significantly different between groups (-1.5 ± 3.5 vs. + 1.8 ± 3.6, p = 0.009); whereas serum lipoprotein lipase mass increased in glibenclamide group and decreased in glibenclamide group, and the changes tended to be different between groups (+ 2.1 ± 19.1 vs. -7.4 ± 19.2, p = 0.096). Change in urinary 8-OHdG was a significant independent predictor for change in CAVI in all subjects. CONCLUSIONS These results suggest that glimepiride improves CAVI compared with glibenclamide. Reduced oxidative stress and improved insulin resistance may contribute to the improvement of CAVI by glimerpiride.
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Affiliation(s)
- D Nagayama
- Center of Diabetes, Endocrine and Metabolism, Sakura Hospital, School of Medicine Toho University, Sakura-City, Chiba, Japan
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Saiki A, Watanabe F, Murano T, Miyashita Y, Shirai K. Hepatocyte growth factor secreted by cultured adipocytes promotes tube formation of vascular endothelial cells in vitro. Int J Obes (Lond) 2006; 30:1676-84. [PMID: 16552403 DOI: 10.1038/sj.ijo.0803316] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Adipose tissue is closely associated with angiogenesis, but the mechanisms are not fully understood. Some of the adipocyte-derived cytokines are hypothesized to play an important role in angiogenesis. We evaluated tube formation of human umbilical vascular endothelial cells (HUVECs) cultured in type I collagen gel when overlaid with the supernatant of 3T3-L1 cell culture, and expression of tube-forming factor(s) in 3T3-L1 cells with or without pioglitazone. We also studied plasma growth factor levels in patients with type 2 diabetes mellitus treated with pioglitazone. RESULTS AND METHODS The supernatant of 3T3-L1 cells increased tube formation of HUVECs by 9.03-fold of control. Reverse transcription-polymerase chain reaction showed that hepatocyte growth factor (HGF) and vascular endothelial growth factor (VEGF) mRNA were expressed in 3T3-L1 cells. Western blot analysis also demonstrated HGF and VEGF protein expression. When 3T3-L1 cells were treated with 100 nM small interfering RNAs (siRNAs) for HGF, the HGF mRNA and protein were suppressed. The VEGF mRNA and protein in the cells were also suppressed by siRNA for VEGF. The supernatant of 3T3-L1 cells treated with HGF siRNA suppressed tube formation of HUVECs by 61% compared with the supernatant of cells treated with control siRNA. Addition of VEGF siRNA resulted in no significant changes. The supernatant conditioned with pioglitazone further promoted the tube formation. Pioglitazone enhanced HGF mRNA expression in 3T3-L1 cells. After 12 weeks of pioglitazone treatment, the changes of plasma HGF levels in patients treated with pioglitazone were significantly higher than those in control. CONCLUSION These results suggest that HGF secreted from 3T3-L1 cells may be the major factor regulating the tube formation, and agents that enhance the differentiation of adipocytes may promote tube formation of HUVECs mediated by HGF secreted by adipocytes.
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Affiliation(s)
- A Saiki
- Center of Diabetes, Endocrine and Metabolism, Sakura Hospital, School of Medicine, Toho University, Chiba, Japan
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Saiki A, Nagayama D, Ohhira M, Endoh K, Ohtsuka M, Koide N, Oyama T, Miyashita Y, Shirai K. Effect of weight loss using formula diet on renal function in obese patients with diabetic nephropathy. Int J Obes (Lond) 2006; 29:1115-20. [PMID: 15925953 DOI: 10.1038/sj.ijo.0803009] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
OBJECTIVE To evaluate the effect and safety of treatment with low-calorie formula diet on renal function and proteinuria in obese patients with diabetic nephropathy. DESIGN Prospective study on safety and efficacy of a 4-week low-calorie (11-19 kcal/kg/day) normal-protein (0.9-1.2 g/kg/day) diet partly supplemented with formula diet. SUBJECTS In all, 22 obese patients with diabetic nephropathy (BMI: 30.4+/-5.3 kg/m(2), HbA1c: 7.1+/-1.4%, serum creatinine: 172.4+/-57.5 micromol/l, urinary protein: 3.3+/-2.6 g/day). RESULTS The mean body weight decreased by 6.2+/-3.0 kg. The mean systolic blood pressure, creatinine, blood urea nitrogen, urinary protein, and 8-hydroxydeoxyguanosine decreased significantly by 7.5+/-12.7 mmHg, 41.6+/-23.9 micromol/l, 1.50+/-1.61 mmol/l, 1.8+/-1.7 g/day, and 3.1+/-3.6 ng/mg creatinine, respectively. No patient had increased serum creatinine and urinary protein. Mean creatinine clearance (40.6+/-17.9 to 46.1+/-14.6 ml/s/1.73 m(2)) and serum albumin showed no significant changes. Delta serum creatinine and Delta urinary protein correlated with Delta body weight (r=0.62 and 0.49, respectively) and Delta visceral fat area (r=0.58 and 0.58, respectively), but did not correlate with Delta systolic blood pressure, Delta fasting blood glucose and Delta subcutaneous fat area. CONCLUSION These results suggested that weight reduction using formula diet might improve renal function and proteinuria safely for a short term in obese patients with diabetic nephropathy.
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Affiliation(s)
- A Saiki
- Center of Diabetes, Endocrine and Metabolism, Sakura Hospital, School of Medicine, Toho University, Chiba, Japan
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Miyashita Y, Ebisuno M, Ohira M, Endoh K, Saiki A, Koide N, Oyama T, Murano T, Watanabe H, Shirai K. We-P13:320 The clinical significance of serum 7-ketocholesterol levels in patients with metabolic syndrome or acute myocardial infarction. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)81673-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ohira M, Miyashita Y, Ebisuno M, Saiki A, Endo K, Koide N, Oyama T, Murano T, Watanabe F, Shirai K. Th-P15:29 Metformin increases lipoprotein lipase production in skeletal muscle through activated AMP-activated protein kinase. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)81989-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Oyama T, Miyashita Y, Otsuka M, Ozaki H, Koide N, Saiki A, Endo K, Itoh Y, Murano T, Watanabe H, Shirai K. 1P-0121 Oxidative stress of low preheparin serum LPL mass group in patients with diabetic mellitus, hypertension, hyperlipidemia and obesity. ATHEROSCLEROSIS SUPP 2003. [DOI: 10.1016/s1567-5688(03)90196-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Miyashita Y, Endoh K, Saiki A, Ozaki H, Ohtsuka M, Koide N, Oyama T, Itoh Y, Shirai K. 1P-0251 Apoptosis of smooth muscle cells induced by oxysterol was enhanced under diabetic condition. ATHEROSCLEROSIS SUPP 2003. [DOI: 10.1016/s1567-5688(03)90322-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Endo K, Miyashita Y, Sasaki H, Ito Y, Oyama T, Saiki A, Ozaki H, Koide N, Otsuka M, Shirai K. 4P-1187 Probucol delayed shift to hemodialysis therapy of patients with diabetic nephropathy. ATHEROSCLEROSIS SUPP 2003. [DOI: 10.1016/s1567-5688(03)91443-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Saiki A, Tamura M, Matsumoto M, Katowgi J, Watanabe A, Onitake K. Establishment of in vitro spermatogenesis from spermatocytes in the medaka, Oryzias latipes. Dev Growth Differ 1997; 39:337-44. [PMID: 9227900 DOI: 10.1046/j.1440-169x.1997.t01-2-00009.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Spermatocytes of the teleost, Oryzias latipes, at meiotic prophase were cultured without contact with somatic cells. They began to divide, progressing through the meiotic divisions and differentiating into round spermatids within 48 h. The chromosome number in both the primary and secondary spermatocytes at metaphase was n = 24. In spermatids, a single flagellum was formed and the release of residual bodies was observed in vitro. The size and shape of the flagellum were the same as those seen in vivo. The expression of protamine mRNA was detected in round spermatids. This result suggests that gene expression, as well as morphological change, is regulated by the progression of spermatogenesis in cell culture. Furthermore, when the eggs of O. latipes were inseminated with germ cells cultured for 10 days, normal embryos developed and hatched out. These results suggest that the spermatocytes of O. latipes develop into fertile sperm in cell culture.
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Affiliation(s)
- A Saiki
- Department of Biology, Faculty of Science, Yamagata University, Japan
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Fujii K, Ozaki M, Yamagishi T, Ishine K, Furutani Y, Nagano H, Yamamoto K, Saiki A, Matsuzaki M. Effect of left ventricular contractile performance on passive left atrial filling--clinical study using radionuclide angiography. Clin Cardiol 1994; 17:258-62. [PMID: 8004840 DOI: 10.1002/clc.4960170508] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Many invasive and noninvasive methods have been used to study the cardiac atria; however, few allow quantitative measurement of atrial function. To determine the interaction between left ventricular (LV) contraction and left atrial (LA) filling, gated radionuclide angiography was conducted in 30 normal subjects (24 men and 6 women, mean age 58 +/- 10 years, range 26-68). LV and LA time-activity curves and their first-derivative curves were obtained simultaneously by using the method of Bough et al. The LV ejection fraction (64 +/- 18%) and LV peak ejection rate (LVPER; 3.42 +/- 0.27 EDV/s) were computed from these curves. As indices of LA filling, LA fractional emptying (38 +/- 12%) and LA peak filling rate (LAPFR; 2.86 +/- 0.17 LAVmax/s)--the latter being defined as the peak rate of LA filling during the LA filling phase--were also computed from these curves. In all subjects, the timing of the LVPER coincided with the occurrence of LAPFR, and there was a significant positive correlation between the LVPER and LAPFR (r = 0.81, p < 0.001), indicating that the LAPFR was strongly affected by the degree of LVPER. Thus, these results indicate that LV contractile performance plays an important role in determining LA passive filling during ventricular systole.
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Affiliation(s)
- K Fujii
- Second Department of Internal Medicine, Yamaguchi University School of Medicine, Ube, Japan
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Abstract
The diffusion rates of nalidixic acid, ofloxacin and ofloxacin's two optically active isomers through OmpF channels were measured in proteoliposomes and compared with the rates of beta-lactams. The four quinolones showed high diffusion rates, exceeding that of cephaloridine and being comparable to imipenem. There was no significant difference in diffusion rate between nalidixic acid and ofloxacin, or between the two optically active isomers. The diffusion rates of enoxacin and norfloxacin were also estimated to be higher than many beta-lactams.
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Affiliation(s)
- T Sawai
- Division of Microbial Chemistry, Faculty of Pharmaceutical Sciences, Chiba University, Japan
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Saiki A. [Effect of dexamethasone on the growth of tooth germs]. Shigaku 1984; 71:850-72. [PMID: 6587268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Saiki H, Nakaya M, Sudoh M, Abe M, Taketomi Y, Oh'Ishi K, Saiki Y, Saiki A. Effect of physical fitness and training on physiological responses to hypogravity. Acta Astronaut 1981; 8:959-969. [PMID: 11543114 DOI: 10.1016/0094-5765(81)90066-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The studies on the orthostatic tolerance during the hypodynamics exposure seem to be significant in connection with the selection, training and health maintenance of astronauts. Using male human subjects of various physical fitness levels, fluctuations of their physical fitness through 2 weeks of vigorous athletic training were measured in many parameters. For some of the subjects, the effects of 6 hr thermal neutral water immersion exposure in head out supine position on the physical fitness parameters and orthostatic tolerability were compared before training with after training. The results obtained were as follows: (1) Before training, orthostatic tolerability before hypodynamics exposure increased, following the physical fitness levels; the value after the hypodynamics exposure decreased in all the cases, but no differences were observed between the physical fitness levels. (2) As a result of training an increase of the physical fitness capacity was observed. The increase of orthostatic tolerability before hypodynamics exposure was noticed except for athletes. (3) Before hypodynamics exposure the urinary excretion of noradrenaline on non-athlete subjects increased as the physicsl fitness level increased. The values were decreased by physical training, the more so the better the physical fitness. After hypodynamics exposure the same relation was observed. But for athletes the values remain more stable and the decrease by hypodynamics exposure was not so distinctive. Such decreased reaction to hypodynamic conditions seems to reveal the neuro hormonal mechanism for the detrimental adaptation of athletes to hypodynamics. These results suggest that stable athletes do not always have low orthostatic tolerability, but do not respond well to hypodynamic conditions, at least from the orthostatic point of view. The mechanism seems related to sympathetic nerve activity.
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Affiliation(s)
- H Saiki
- The Jikei University, School of Medicine, Tokyo, Japan
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Sato K, Harada S, Saiki A, Kimura T, Okubo T, Mukai K. A Novel Planar Multilevel Interconnection Technology Utilizing Polyimide. ACTA ACUST UNITED AC 1973. [DOI: 10.1109/tphp.1973.1136727] [Citation(s) in RCA: 62] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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