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Suganuma Y, Takahashi H, Sano H, Hayashi Y, Nishimura R. Changes in insulin resistance, body mass index and degree of obesity among junior high school students: A comparison before and after the outbreak of the COVID-19 pandemic. Pediatr Obes 2023; 18:e13065. [PMID: 37414578 DOI: 10.1111/ijpo.13065] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 05/18/2023] [Accepted: 05/24/2023] [Indexed: 07/08/2023]
Abstract
This study aimed to investigate how the COVID-19 pandemic since 2020 has affected the homeostasis model assessment of insulin resistance (HOMA-IR), body mass index (BMI) and degree of obesity among Japanese children. HOMA-IR, BMI and degree of obesity were calculated for 378 children 14-15 years old (boys/girls, 208/170) who underwent checkups during 2015-2021. Changes in these parameters over time and correlations between parameters were assessed, and the proportions of participants with IR (HOMA-IR ≥2.5) were compared. HOMA-IR values increased significantly over the study period (p < 0.001), with a significantly large proportion of participants with IR in 2020-2021 (p < 0.001). Conversely, BMI and degree of obesity did not change significantly. HOMA-IR did not correlate with BMI or degree of obesity during 2020-2021. In conclusion, the COVID-19 pandemic may have had an impact on the increase in the proportion of children with IR, regardless of BMI or degree of obesity.
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Affiliation(s)
- Yuka Suganuma
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Hiroshi Takahashi
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Hironari Sano
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
- Department of Internal Medicine, Tsunan Town Hospital, Niigata, Japan
| | - Yuusaku Hayashi
- Department of Internal Medicine, Tsunan Town Hospital, Niigata, Japan
| | - Rimei Nishimura
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
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Short E, Chagas J, Kurihara M, Ishikawa Y, Chambers JP, Bridges J, Sano H. Effect of common sedation agents on feline splenic size determined via ultrasonography. N Z Vet J 2023; 71:244-250. [PMID: 37345417 DOI: 10.1080/00480169.2023.2223177] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 06/05/2023] [Indexed: 06/23/2023]
Abstract
AIMS To evaluate the effect of IM administration of three sedative drugs, acepromazine, alfaxalone and dexmedetomidine, in combination with morphine, on the size of the feline spleen using ultrasonography. METHODS Twenty-four client-owned cats undergoing elective de-sexing or minor procedures were recruited for a focused ultrasonographic examination of the spleen prior to and at 10, 20 and 30 minutes following administration of one of three randomly assigned IM sedation protocols: 0.05 mg/kg acepromazine (ACE group), 3 mg/kg alfaxalone (ALF group), or 10 μg/kg dexmedetomidine (DEX group), in combination with 0.5 mg/kg morphine. B-mode images of the spleen were collected and measured following a standardised protocol. Cardiorespiratory parameters and sedation score were also recorded. Mean thickness of the head, body and tail of the spleen for each group at 10, 20 and 30 minutes after drug administration was compared to baseline. RESULTS Mean splenic thickness increased over time in the ACE group (thickness of body at T0 = 8.9 (SE 2.1) mm and at T30 = 10.5 (SE 2.0) mm; p = 0.001) and the ALF group (thickness of body at T0 = 8.8 (SE 1.0) mm and at T30 = 10.3 (SE 1.7) mm; p = 0.022) but not in the DEX group (thickness of body at T0 = 8.6 mm (1.2) and at T30 = 8.9 mm (0.6); p = 0.67). Mean arterial blood pressure in the DEX group was significantly higher than in the other groups (p = 0.002). Sedation scores in the DEX group were consistently high for the entire period. However, the sedation score in the ACE group increased over 30 minutes (p = 0.007). Sedation score in the ALF group was highest at 10 minutes but gradually decreased over the following 20 minutes (p = 0.003). CONCLUSIONS Sedation with IM dexmedetomidine and morphine did not change splenic size, whereas acepromazine or alfaxalone and morphine increased it regardless of the degree of sedation. CLINICAL RELEVANCE Where splenomegaly is identified in a cat sedated with acepromazine or alfaxalone, the effects of the sedation protocol could be considered as a possible cause.
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Affiliation(s)
- E Short
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - J Chagas
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - M Kurihara
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Y Ishikawa
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - J P Chambers
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - J Bridges
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - H Sano
- Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand
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Matsudaira T, Sano H, Miyashita Y, Tajima N, Shirasawa T, Ochiai H, Kokaze A, Nishimura R. Association of adipocytokines and adipocytokine ratios with cardiovascular risk factors in Japanese preadolescents. J Pediatr Endocrinol Metab 2023:jpem-2022-0542. [PMID: 37293998 DOI: 10.1515/jpem-2022-0542] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 05/23/2023] [Indexed: 06/10/2023]
Abstract
OBJECTIVES Asians are particularly susceptible to obesity-associated disorders and rapid progression of obesity from childhood to adulthood. Data on the association between adipocytokine parameters, particularly adipocytokine ratios, and cardiovascular risk factors in childhood remain limited. Herein, we assessed the association of resistin, adiponectin, and leptin levels and leptin/adiponectin and resistin/adiponectin ratios with selected cardiovascular risk factors and the influence of unhealthy weight on such associations in children aged 9-10 years. METHODS We included 380 children aged 9-10 years from three public elementary schools in Japan. RESULTS The body mass index (BMI) was significantly higher in male preadolescents than in female adolescents (median 16.5 kg/m2 vs. 16.2 kg/m2, p=0.032). No differences in height, weight, waist circumference (WC), waist/height ratio (W/Hr), total cholesterol and high-density lipoprotein cholesterol levels, or atherosclerosis index (AI) were observed between the sexes. Of the adipocytokine levels and ratios analyzed, only the leptin level and leptin/adiponectin ratio (L/Ar) were strongly and significantly positively correlated with the cardiovascular risk factors WC, W/Hr, and BMI (all p<0.05). The AI was not strongly correlated with any adipocytokine levels or ratios. Apart from the strong positive correlation between the L/Ar and W/Hr, no other significant associations were observed between any of the adipocytokine levels or ratios and the selected cardiovascular risk factors. CONCLUSIONS Our findings confirmed the value of adipocytokine ratios in risk assessment in pediatric populations, with leptin levels and leptin/adiponectin ratios strongly correlating with risk factors in children aged 9-10 years.
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Affiliation(s)
- Toru Matsudaira
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Hironari Sano
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Yumi Miyashita
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Naoko Tajima
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Takako Shirasawa
- Department of Hygiene, Public Health and Preventive Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Hirotaka Ochiai
- Department of Hygiene, Public Health and Preventive Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Akatsuki Kokaze
- Department of Hygiene, Public Health and Preventive Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Rimei Nishimura
- Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
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Sivasankar V, Omine K, Zhang Z, Shi S, Sano H, Chicas SD. Plaster board waste (PBW) - A potential fluoride leaching source in soil/water environments and, fluoride immobilization studies using soils. Environ Res 2023; 218:115005. [PMID: 36493809 DOI: 10.1016/j.envres.2022.115005] [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] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 12/02/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
Plaster board waste generated from industries, usually contains major proportion of calcium as calcium sulfate. In addition, fluoride is remarkably one among the constituents of this waste material which leaches off into the soil and aquatic environments and causes fluoride pollution. In order to simulate how the dumping of PBW causes fluoride contamination in soil and water sources, shaking and stirring based batch-mode leaching studies were conducted. These studies explored the leaching of fluoride as a function of particle size, agitation time, pH of the leaching solvent (distilled water), L/S (water: PBW) ratio, temperature and electrolytes. It was explored that 1 g of plaster board waste contains18.54 mg F per gram of PBP. High leaching of 3.72 mg F per liter was studied at pH 6.02 with Ca2+ and TDS contents of 1050 mg L-1 and1640 mg L-1 respectively. The influence of sodium electrolytes such as chloride, nitrate, hydrogen carbonate, carbonate, sulfate, borate, phosphate and acetate on the leaching of fluoride from PBW was studied. The influence of fluoride leaching by sodium phosphate recorded a high value of 12.75 mg L-1 with no detectable amount of calcium ions. The influence of eight electrolytic mixtures each containing five sodium electrolytes on fluoride leaching corroborated the highest leaching in mixtures containing phosphate followed by hydrogen carbonate/carbonate. Solutions of calcium and aluminium chloride and their mixture were used to measure the rate of leachable fluoride in solution. Furthermore, the fluoride leaching at different temperatures and acids was studied. Naturally occurring soils when blended with PBW were observed to immobilize fluoride and lessened the amount of leaching fluoride in water. Various characterization studies such as FTIR, Raman, FESEM (with EDS), XRD and XPS were carried out for PBW and its treated samples using different electrolytes. Fluoride leaching proportionate to the precipitation of carbonate and phosphate was recorded in the case of appropriate electrolyte and mixtures.
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Affiliation(s)
- V Sivasankar
- Post Graduate and Research Department of Chemistry, Pachaiyappa's College (affiliated to University of Madras), Chennai, 600 030, Tamil Nadu, India.
| | - K Omine
- Geo-environmental Laboratory, Department of Civil Engineering, Graduate School of Engineering, Nagasaki University, Nagasaki, 852 8521, Japan.
| | - Z Zhang
- Geo-environmental Laboratory, Department of Civil Engineering, Graduate School of Engineering, Nagasaki University, Nagasaki, 852 8521, Japan
| | - S Shi
- Geo-environmental Laboratory, Department of Civil Engineering, Graduate School of Engineering, Nagasaki University, Nagasaki, 852 8521, Japan
| | - H Sano
- Division of Chemistry and Materials Science, Graduate School of Engineering, Nagasaki University, Nagasaki, 852 8521, Japan
| | - S D Chicas
- Humboldt-Universitat zu Berlin, Integrative Research Institute on Transformations of Human-Environment Systems (IRI THESys), Unter Den Linden 6, 10099, Berlin, Germany
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Panizzi L, Vignes M, Dittmer K, Waterland M, Rogers C, Sano H, McIlwraith C, Pemberton S, Owen M, Riley C. Infrared spectroscopy of serum fails to identify early biomarker changes in an equine model of traumatic osteoarthritis. Osteoarthritis and Cartilage Open 2022; 4:100297. [DOI: 10.1016/j.ocarto.2022.100297] [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] [Received: 08/16/2021] [Revised: 07/21/2022] [Accepted: 07/22/2022] [Indexed: 11/29/2022] Open
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Kobayashi K, Shikino K, Sano H, Shibata T, Higuchi S, Miyamoto M, Ban T. Family cluster of Japanese spotted fever. QJM 2022; 115:169-170. [PMID: 35021228 DOI: 10.1093/qjmed/hcac002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 01/07/2022] [Indexed: 11/14/2022] Open
Affiliation(s)
- K Kobayashi
- Department of Internal Medicine, Isumi Medical Center, 1177, Kariya, Isumi-city, Chiba 298-0123, Japan
| | - K Shikino
- Department of General Medicine, Chiba University Hospital, 1-8-1, Inohana, Chuo-ku, Chiba-city, Chiba 260-8677, Japan
| | - H Sano
- Department of Internal Medicine, Isumi Medical Center, 1177, Kariya, Isumi-city, Chiba 298-0123, Japan
| | - T Shibata
- Department of Internal Medicine, Isumi Medical Center, 1177, Kariya, Isumi-city, Chiba 298-0123, Japan
| | - S Higuchi
- Department of Internal Medicine, Isumi Medical Center, 1177, Kariya, Isumi-city, Chiba 298-0123, Japan
| | - M Miyamoto
- Department of Internal Medicine, Isumi Medical Center, 1177, Kariya, Isumi-city, Chiba 298-0123, Japan
| | - T Ban
- Department of Internal Medicine, Isumi Medical Center, 1177, Kariya, Isumi-city, Chiba 298-0123, Japan
- Department of Internal Medicine, Isumi Medical Center, 1177, Kariya, Isumi-city, Chiba 298-0123, Japan
- Department of General Medicine, Chiba University Hospital, 1-8-1, Inohana, Chuo-ku, Chiba-city, Chiba 260-8677, Japan
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Takahashi H, Sano H, Hayashi Y, Nishimura R. Eicosapentaenoic acid/arachidonic acid ratio in Japanese junior high school students. Pediatr Int 2022; 64:e14898. [PMID: 34170595 DOI: 10.1111/ped.14898] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 06/10/2021] [Accepted: 06/23/2021] [Indexed: 01/06/2023]
Abstract
BACKGROUND This epidemiological study investigated the eicosapentaenoic acid/arachidonic acid ratio (EAR) and docosahexaenoic acid/ arachidonic acid ratio (DAR) in ninth-graders in Japan. METHODS A total of 175 ninth-grade children from Tsunan Town (115 boys and 60 girls) were enrolled in the study between 2015 and 2017. All participants were assessed during annual health checkups to determine their EAR and DAR. All data were compared between boys and girls using the Mann-Whitney test. Spearman's rank correlation coefficient was used to describe the strengths of correlations between the EAR, DAR, and relevant parameters. RESULTS The median (minimum, maximum) EAR and DAR of all participants were 0.13 (0.05, 0.46) and 0.47 (0.25, 0.84), respectively. There was no significant difference in the EAR between boys and girls at 0.12 (0.05, 0.46) and 0.13 (0.06, 0.27) (P = 0.375), respectively. The DAR was not significantly different (P = 0.125). There was a significant positive correlation between EAR and triglyceride, body mass index, and homeostasis model assessment but a significantly negative correlation with HbA1c (r = -0.209, P = 0.006). In contrast, there was no significant correlation between DAR and any parameters. CONCLUSIONS This is the first epidemiological study investigating the EAR using a population-based cohort of Japanese adolescents. The EAR in boys/girls in Japan is 0.12 (0.05, 0.46)/0.13 (0.06, 0.27). The study results suggest that children with a healthy diet may generally have a lower average blood glucose level.
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Affiliation(s)
- Hiroshi Takahashi
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Hironari Sano
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan.,Tsunan Town Hospital, Niigata, Japan
| | | | - Rimei Nishimura
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
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Soga F, Tanaka H, Tatsumi K, Mochizuki Y, Sano H, Toki H, Matsumoto K, Shite J, Takaoka H, Doi T, Hirata K. impact of dapagliflozin on left ventricular diastolic function in diabetic patients with heart failure complicating cardiovascular risk factors. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeaa356.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Type 2 diabetes mellitus (T2DM) is a well-known risk factor for heart failure (HF), even in patients without a structural heart disease or a symptom of HF. Diabetes-related cardiomyopathy is presented as an left ventricular (LV) diastolic dysfunction, which, like cardiovascular disease, is a contributor of the development of HF in both patients with reduced ejection fraction (HFrEF) and with preserved ejection fraction (HFpEF). Furthermore, comorbid factors other than T2DM also have been identified as high risk factors for of progression to HF. Dapagliflozin is a sodium glucose cotransporter type 2 (SGLT2) inhibitor, and represents a new class of anti-hyperglycemic agents for T2DM. A result from a recent large clinical trial showed that dapagliflozin reduced risk of worsening HF or death from cardiovascular causes for patients with HFrEF compared to those who received a placebo, regardless of the presence or absence of T2DM. However, the effect of SGLT2 inhibitors on LV diastolic function in T2DM patients with HF who had cardiovascular risk factors other than T2DM remains uncertain.
Purpose
Our purpose was to investigate the impact of dapagliflozin on LV diastolic function in T2DM patients with stable HF complicating cardiovascular risk factors.
Methods
We analyzed data from our previous prospective multicenter study, which investigate the effect of dapagliflozin on LV diastolic function of 53 T2DM patients with stable HF at five institutions in Japan. Patients who had been taking at least one antidiabetic drugs other than SGLT2 inhibitor started the administration of dapagliflozin. Cardiovascular risk factors other than T2DM was determined as age, gender, hypertension, dyslipidemia, history of cardiovascular events and overweight.
Results
E/e′ significantly decreased from 9.3 to 8.5 cm/s 6 months after administration of dapagliflozin (p = 0.020) as previously described. Multivariate logistic regression analysis showed that dyslipidemia was the only independent determinant of an improvement of E/e’ among cardiovascular risk factors. Furthermore, relative changes in E/e’ from baseline to 6 months after administration of dapagliflozin seen in HFpEF patients with dyslipidemia were significantly larger than those in HFpEF patients without dyslipidemia (-15.2% vs. 29.6%, p = 0.014), but such a difference was not observed in non-HFpEF patients. In addition, relative changes in high-density lipoprotein cholesterol (HDL-C) from baseline to 6 months after administration of dapagliflozin had significant correlation with those in E/e’ (r=-0.300, p = 0.038). However, such correlations were not observed in low-density lipoprotein cholesterol (LDL-C) and triglyceride (r = 0.05, p = 0.72 and r = 0.05, p = 0.73). Conclusion: Dapagliflozin was more beneficial effect on LV diastolic function for T2DM patients with stable HF, especially those with complicating dyslipidemia. Our findings may thus offer a new insight into the management of T2DM patients with HF.
Abstract Figure.
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Affiliation(s)
- F Soga
- Kobe University Graduate School of Medicine, Kobe, Japan
| | - H Tanaka
- Kobe University Graduate School of Medicine, Kobe, Japan
| | - K Tatsumi
- Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Mochizuki
- Kobe University Graduate School of Medicine, Kobe, Japan
| | - H Sano
- Takatsuki General Hospital, Cardiology, Takatsuki, Japan
| | - H Toki
- Kobe Red Cross Hospital, Cardiology, Kobe, Japan
| | - K Matsumoto
- Kobe University Graduate School of Medicine, Kobe, Japan
| | - J Shite
- Osaka Saiseikai Nakatsu Hospital, Cardiology, Osaka, Japan
| | - H Takaoka
- Takatsuki General Hospital, Cardiology, Takatsuki, Japan
| | - T Doi
- Kobe Red Cross Hospital, Cardiology, Kobe, Japan
| | - K Hirata
- Kobe University Graduate School of Medicine, Kobe, Japan
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Yozova ID, Sano H, Weidgraaf K, Candy EJ, Cockrem JF. A randomized cross-over trial assessing salivary and urinary cortisol concentrations after alfaxalone and propofol administration in healthy cats. Domest Anim Endocrinol 2021; 74:106557. [PMID: 33039929 DOI: 10.1016/j.domaniend.2020.106557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/26/2020] [Accepted: 08/27/2020] [Indexed: 11/18/2022]
Abstract
The aim of this study was to assess the effects of commonly used anaesthetics alfaxalone and propofol on salivary and urinary cortisol in healthy cats. Fifteen male castrated research-purposed cats received randomly intravenous continuous rate infusions of 8 mg/kg/h of alfaxalone, 12 mg/kg/h of propofol and 2 ml/kg/h of Lactated Ringer's solution for 30 min, with intervals of 6 days between treatments. Saliva samples were collected for 24 h before each infusion and for 24 h from the start of each infusion. Urine was collected as single pooled samples over each 24 h period. Mean integrated saliva cortisol responses in cats treated with alfaxalone were greater than responses of cats treated with propofol (P = 0.034) and controls (P = 0.017). Integrated responses in cats treated with propofol did not differ from controls. The mean urinary cortisol/creatinine ratio (UCCR) was higher on the day of treatment than the day before treatment in cats treated with alfaxalone (P < 0.0001) and in cats treated with propofol (P = 0.0168) and did not differ between days in cats treated with lactated Ringer's solution. The mean UCCR was higher in cats treated with alfaxalone than in cats treated with lactated Ringer's solution (P = 0.0020) on the day of treatment. Mean total urinary cortisol over 24 h was greater in cats treated with alfaxalone than controls (P = 0.0267). In conclusion, alfaxalone increased short-term salivary and urinary cortisol concentrations in healthy cats as compared to propofol and a control group of non-anesthetised cats.
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Affiliation(s)
- I D Yozova
- Massey University Pet Emergency Centre, School of Veterinary Science, Massey University, Palmerston North, New Zealand.
| | - H Sano
- Department of Anaesthesia and Analgesia, School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - K Weidgraaf
- The Centre for Feline Nutrition, Massey University, New Zealand
| | - E J Candy
- Endocrinology Laboratory, School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - J F Cockrem
- Endocrinology Laboratory, School of Veterinary Science, Massey University, Palmerston North, New Zealand
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Tanaka H, Soga F, Tatsumi K, Mochizuki Y, Sano H, Toki H, Matsumoto K, Shite J, Takaoka H, Doi T, Hirata K. Positive effect of dapagliflozin on left ventricular longitudinal function for type 2 diabetic mellitus patients with chronic heart failure. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Type 2 diabetes mellitus (T2DM) has come to be considered an independent predictor of mortality, and also a contributor to the development of heart failure (HF) with reduced ejection fraction (HFrEF) and with preserved ejection fraction (HFpEF). Left ventricular (LV) longitudinal myocardial dysfunction as assessed in terms of lower global longitudinal strain (GLS), has been identified even in T2DM patients with preserved LV ejection fraction (LVEF), and should be considered the first marker of a preclinical form of DM-related cardiac dysfunction, leading to HFpEF. Sodium glucose cotransporter type 2 (SGLT2) inhibitors represent a new class of anti-hyperglycemic agents for T2DM, but the effect of SGLT2 inhibitors on LV longitudinal myocardial function in T2DM patients with HF remains uncertain. To examine this effect, as well as the association of LV longitudinal myocardial function with LV diastolic function after administration of SGLT2 inhibitor in T2DM patients with stable HF, we analyzed data from our previous prospective multicenter study, in which we investigated the effect of SGLT2 inhibitor on LV diastolic functional parameters of T2DM patients with stable HF at five institutions in Japan.
Methods
Our previous trial was a prospective multicenter study of 58 T2DM patients with stable HF at five institutions in Japan. Patients who had been taking at least one antidiabetic drugs other than SGLT2 inhibitors started the administration of 5 mg/day of dapagliflozin. Echocardiography was performed at baseline and 6 months after administration of dapagliflozin. LV diastolic function was defined as the ratio of mitral inflow E to mitral e' annular velocities (E/e'). LV longitudinal myocardial function was assessed as GLS based on the current guidelines.
Results
E/e' significantly decreased from 9.3 to 8.5 cm/s 6 months after administration of dapagliflozin (p=0.020) as previously described, while GLS showed significant improvement from 15.5±3.5% to 16.9±4.1% (p<0.01) 6 months after administration of dapagliflozin. Furthermore, improvement of GLS in HFpEF patients was more significant from 17.0±1.9% to 18.7±2.0% (p<0.001), compared to that in HFrEF patients from 11.3±3.8% to 11.8±4.6% (p=0.13). It was noteworthy that multiple regression analysis showed that the change in GLS after administration of dapagliflozin was the only independent determinant parameter for the change in E/e' after administration of dapagliflozin.
Conclusion
Dapagliflozin was found to be associated with improvement of LV longitudinal myocardial function, which led to further improvement of LV diastolic function of T2DM patients with stable HF. GLS-guided management may thus lead to improved management of T2DM patients with stable HF.
Representative case
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
| | - F Soga
- Kobe University, Kobe, Japan
| | | | - Y Mochizuki
- Osaka Saiseikai Nakatsu Hospital, Osaka, Japan
| | - H Sano
- Aijinkai Takatsuki Hospital, Takatsuki, Japan
| | - H Toki
- Kobe Red Cross Hospital, Kobe, Japan
| | | | - J Shite
- Osaka Saiseikai Nakatsu Hospital, Osaka, Japan
| | - H Takaoka
- Aijinkai Takatsuki Hospital, Takatsuki, Japan
| | - T Doi
- Kobe Red Cross Hospital, Kobe, Japan
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Abstract
Aims: To evaluate the efficacy of insulating the limbs and thorax of cats with a combination of bubble wrap and an absorbent, plastic-lined pad in reducing heat loss during ovariohysterectomy. Methods: A preliminary study was performed to compare heat loss of 1 L bags of Hartmann's solution heated to 38°C which were either wrapped in two layers of bubble wrap and an absorbent pad (n = 6) or were unwrapped (n = 6). Bags were allowed to cool in a temperature-controlled room and the temperature of the bags was measured every 10 minutes for 60 minutes. The clinical study, included 16 intact female cats undergoing ovariohysterectomy. The cats were premedicated with I/M morphine and either medetomidine or dexmedetomidine, and anaesthesia was induced with I/V propofol and maintained with isoflurane in 100% oxygen. Cats were randomly assigned to either the treatment group (n = 8) whose limbs and thorax wrapped with two layers of bubble wrap and an absorbent pad immediately after induction, or the control group (n = 8) which were unwrapped. Body temperature (measured with an oesophageal temperature probe), heart rate, respiratory rate, mean arterial pressure and partial pressure of end-tidal CO2 were recorded immediately after induction (T start), before surgery started (T surgery), and at the end of isoflurane administration (T end). The times from T end to extubation, from T end to when the cat could maintain sternal recumbency and from T end to when the cat was able to stand, were also recorded. Results: In the preliminary study of heat loss by fluid bags, the mean temperature at 60 minutes was higher in wrapped bags (35.4 (SD 0.2)°C) compared to unwrapped bags (33.0 (SD 0.3)°C; p < 0.01). For cats undergoing ovariohysterectomy, mean body temperature of wrapped cats was higher than that of unwrapped cats both at T surgery (36.0 (SE 0.3) vs. 34.5 (SE 0.3)°C; p = 0.001) and at T end (37.2 (SE 0.5) vs. 36.0 (SE 0.5)°C; p = 0.01). Wrapped cats regained the ability to stand more rapidly that unwrapped cats (26.4 (SE 5.8) vs. 47.0 (SE 5.8) minutes p = 0.01). Conclusions: Wrapping the limbs and thorax of cats undergoing ovariohysterectomy in a combination of bubble wrap and absorbent pads reduced heat loss, which in turn improved recovery time from general anaesthesia. Clinical relevance: This inexpensive and practical method may reduce perioperative hypothermia, in cats undergoing abdominal surgery.
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Affiliation(s)
- H Sakata
- Department of Small Animal Clinical Science, Rakuno Gakuen University, Ebetsu, Japan
| | - V Walsh
- Massey University Veterinary Teaching Hospital, School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - J P Chambers
- Massey University Veterinary Teaching Hospital, School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - J Bridges
- Massey University Veterinary Teaching Hospital, School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - H Sano
- Massey University Veterinary Teaching Hospital, School of Veterinary Science, Massey University, Palmerston North, New Zealand
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Sano H, Chambers P, Bridges J. Effects of preemptive norepinephrine infusion prior to hypotension on anesthetic management in dogs undergoing ovariohysterectomy. Vet Anaesth Analg 2019. [DOI: 10.1016/j.vaa.2019.08.039] [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: 11/24/2022]
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Makino S, Kawamoto C, Ikeda T, Doi T, Narise A, Tanaka T, Almas C, Hannig M, Carvalho R, Sano H. Whitening Efficacy of Chewing Gum Containing Sodium Metaphosphate on Coffee Stain: Placebo-controlled, Double-blind In Situ Examination. Oper Dent 2019; 44:469-475. [PMID: 31172873 DOI: 10.2341/17-385-c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study aimed to evaluate the ability of chewing gum containing sodium metaphosphate (SMP) to remove coffee stains from enamel in situ. This was a double-blind (subjects, evaluators), parallel-group, crossover, randomized clinical trial with 30 healthy adult volunteers. Each participant held an appliance with a hydroxyapatite (HA) pellet on the lower lingual side of his or her mouth for two hours to allow pellicle formation. The appliances were subsequently immersed in coffee solution at 37°C for 48 hours. The color of the HA pellet before and after coffee immersion was measured using a spectrophotometer. The participant set the appliance and chewed two pieces of test gum, which contained 7.5 mg of SMP per piece, or control gum without SMP. Each cycle included five minutes of exposure to chewing gum, after which the appliances were placed in 100% relative humidity at room temperature for a 30-minute incubation. This cycle was repeated five times for each gum type. The color of the HA pellet was measured after each chewing cycle using the spectrophotometer. In addition, ΔE* values, which indicate the change in pellet color after each chewing cycle compared with after coffee immersion, were calculated. Data were analyzed using the paired t-test with Bonferroni adjustment to compare ΔE* values of control and test gum after each chewing cycle. The ΔE* values of test gum were significantly higher than those of control gum after all chewing cycles, excluding the first cycle (p<0.05). This finding indicates that test gum containing SMP was more effective at removing coffee stains from the HA pellet than control gum. We conclude that chewing gum containing SMP can effectively remove coffee stains from HA pellets. Thus, SMP is a promising agent to be further explored in tooth-cleaning studies.
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Okamura M, Kaneko M, Ojima S, Sano H, Shindo J, Shirafuji H, Yamamoto S, Tanabe T, Hu D. Differential distribution of Salmonella serovars and Campylobacter spp. isolates in free-living crows and broiler chickens in Aomori, Japan. Int J Infect Dis 2019. [DOI: 10.1016/j.ijid.2018.11.174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Kaneko N, Herranz-Pérez V, Otsuka T, Sano H, Ohno N, Omata T, Nguyen HB, Thai TQ, Nambu A, Kawaguchi Y, García-Verdugo JM, Sawamoto K. New neurons use Slit-Robo signaling to migrate through the glial meshwork and approach a lesion for functional regeneration. Sci Adv 2018; 4:eaav0618. [PMID: 30547091 PMCID: PMC6291311 DOI: 10.1126/sciadv.aav0618] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 11/11/2018] [Indexed: 06/09/2023]
Abstract
After brain injury, neural stem cell-derived neuronal precursors (neuroblasts) in the ventricular-subventricular zone migrate toward the lesion. However, the ability of the mammalian brain to regenerate neuronal circuits for functional recovery is quite limited. Here, using a mouse model for ischemic stroke, we show that neuroblast migration is restricted by reactive astrocytes in and around the lesion. To migrate, the neuroblasts use Slit1-Robo2 signaling to disrupt the actin cytoskeleton in reactive astrocytes at the site of contact. Slit1-overexpressing neuroblasts transplanted into the poststroke brain migrated closer to the lesion than did control neuroblasts. These neuroblasts matured into striatal neurons and efficiently regenerated neuronal circuits, resulting in functional recovery in the poststroke mice. These results suggest that the positioning of new neurons will be critical for functional neuronal regeneration in stem/progenitor cell-based therapies for brain injury.
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Affiliation(s)
- N. Kaneko
- Department of Developmental and Regenerative Biology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8601, Japan
| | - V. Herranz-Pérez
- Laboratory of Comparative Neurobiology, Instituto Cavanilles, Universidad de Valencia, CIBERNED, C/Catedrático José Beltrán, 2, Paterna, 46980 Valencia, Spain
- Predepartamental Unit of Medicine, Faculty of Health Sciences, Universitat Jaume I, Q-6250003-H Av. de Vicent Sos Baynat, s/n, 12071 Castelló de la Plana, Spain
| | - T. Otsuka
- Division of Cerebral Circuitry, National Institute for Physiological Sciences, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan
- Department of Physiological Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan
| | - H. Sano
- Department of Physiological Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan
- Division of System Neurophysiology, National Institute for Physiological Sciences, 38 Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - N. Ohno
- Department of Anatomy, Division of Histology and Cell Biology, Jichi Medical University, School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
- Division of Neurobiology and Bioinformatics, National Institute for Physiological Sciences, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan
| | - T. Omata
- Department of Developmental and Regenerative Biology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8601, Japan
| | - H. B. Nguyen
- Division of Neurobiology and Bioinformatics, National Institute for Physiological Sciences, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan
- Department of Anatomy, Faculty of Medicine, University of Medicine and Pharmacy (UMP), Ho Chi Minh City 700000, Vietnam
| | - T. Q. Thai
- Division of Neurobiology and Bioinformatics, National Institute for Physiological Sciences, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan
| | - A. Nambu
- Department of Physiological Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan
- Division of System Neurophysiology, National Institute for Physiological Sciences, 38 Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Y. Kawaguchi
- Division of Cerebral Circuitry, National Institute for Physiological Sciences, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan
- Department of Physiological Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan
| | - J. M. García-Verdugo
- Laboratory of Comparative Neurobiology, Instituto Cavanilles, Universidad de Valencia, CIBERNED, C/Catedrático José Beltrán, 2, Paterna, 46980 Valencia, Spain
| | - K. Sawamoto
- Department of Developmental and Regenerative Biology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8601, Japan
- Division of Neural Development and Regeneration, National Institute for Physiological Sciences, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan
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Yamanishi J, Sano H, Saito K, Furuta Y, Fukuzaki H. Plasma Concentrations of Platelet-Specific Proteins in Different Stages of Essential Hypertension: Interactions between Platelet Aggregation, Blood Lipids and Age. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1657892] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryPlasma β-thromboglobulin (βTG) and platelet factor 4 (PF4) were significantly higher in a group of 116 hypertensive men than in a normotensive group of 142 men. They increased with the stage of hypertension but the level did not correlate with the age of the subjects. Platelet aggregation was similar in the two groups and positively correlated with the age of the subjects in the normotensive group but not in the hypertensive group. A strong positive correlation was observed between the levels of plasma βTG and PF4 and between platelet aggregation to ADP and that to epinephrine in both the hypertensive and normotensive groups. However, there was no correlation between the level of plasma βTG or PF4 and platelet aggregation. Plasma antithrombin III was lower in the hypertensive group than in the normotensive group.These studies suggest that plasma levels of PTG and PF4 are closely related to the stage of hypertension and are better indicators than aggregation of in vivo platelet activation in hypertensive subjects. Enhanced platelet activation may be involved in the acceleration of hypertensive arteriovascular damage and atherosclerosis.
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Affiliation(s)
- J Yamanishi
- The First Department of Internal Medicine, Kobe University School of Medicine, Kobe, Japan
| | - H Sano
- The First Department of Internal Medicine, Kobe University School of Medicine, Kobe, Japan
| | - K Saito
- The First Department of Internal Medicine, Kobe University School of Medicine, Kobe, Japan
| | - Y Furuta
- The First Department of Internal Medicine, Kobe University School of Medicine, Kobe, Japan
| | - H Fukuzaki
- The First Department of Internal Medicine, Kobe University School of Medicine, Kobe, Japan
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Saikaew P, Matsumoto M, Chowdhury A, Carvalho RM, Sano H. Does Shortened Application Time Affect Long-Term Bond Strength of Universal Adhesives to Dentin? Oper Dent 2018; 43:549-558. [PMID: 29630488 DOI: 10.2341/17-205-l] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE This study evaluated the effect of shortened application time on long-term bond strength with universal adhesives. METHODS AND MATERIALS Three universal adhesives were used: Clearfil Universal Bond (CU, Kuraray Noritake Dental Inc, Tokyo, Japan), Scotchbond Universal Adhesive (SB, 3M ESPE, St Paul, MN, USA) or G-Premio Bond (GP, GC Corp, Tokyo, Japan). Sixty molars were cut to expose midcoronal dentin and prepared with a regular diamond bur. Each adhesive was applied either according to the manufacturer's instruction or with shortened time. Specimens were stored in distilled water at 37°C for 24 hours and then cut into resin-dentin sticks. Microtensile bond strength (μTBS) was tested after either 24 hours or 1 year of water storage. Data were analyzed by the three-way ANOVA and Duncan tests ( α=0.05). Fracture modes were analyzed under a scanning electron microscope (SEM). One dentin stick per group was selected after fracture mode analysis and further observed using transmission electron microscopy (TEM). Six additional dentin discs were prepared and conditioned with each adhesive under the different application time to observe the adhesive-smear layer interaction by SEM. RESULTS Shortened application time affected the μTBS ( p<0.001) while storage time did not affect bond strength ( p=0.187). A significant effect of shortened application time on μTBS was observed in the CU at 1 year and in the GP at both storage times. CONCLUSIONS One-year storage time had no effect on the μTBS of universal adhesives to bur-cut dentin. The performance of universal adhesives can be compromised when applied using a shortened application time.
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Sano H, Barker K, Odom T, Lewis K, Giordano P, Walsh V, Chambers JP. A survey of dog and cat anaesthesia in a sample of veterinary practices in New Zealand. N Z Vet J 2017; 66:85-92. [PMID: 29207250 DOI: 10.1080/00480169.2017.1413959] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AIMS To survey current anaesthesia practices for dogs and cats in small and mixed animal practices in New Zealand in order to improve anaesthesia education. METHODS A questionnaire was sent to 440 small and mixed animal practices, including questions regarding the type of practice, preanaesthetic examination, anaesthetic drugs and management, anaesthetic machines, monitoring and topics of interest for continuing professional development. RESULTS Responses were obtained from 113/440 (26%) practices, with 78 (69%) respondents from small and 35 (31%) from mixed animal practices. A preanaesthetic physical examination was carried out by >95% of respondents and premedication was usually given to dogs (112/113; 99%) and cats (95/113; 85%). Acepromazine was the preferred sedative for dogs and cats, with morphine or buprenorphine. Propofol and alfaxalone were the preferred induction agents, and isoflurane was preferred for maintenance in both dogs and cats. A venous catheter was usually placed for anaesthesia in dogs (59/113; 52%), but less so in cats (39/113; 35%). Perioperative fluid was administered at 10 mL/kg/hour by 62/110 (56%) respondents. Intubation was usually used for anaesthesia in dogs (111/112; 99%), and cats (87/112; 78%). Almost 40% of respondents usually administered supplementary oxygen if patients were not intubated. Local analgesia was used by 69/111 (88%) respondents sometimes or always if applicable. Morphine or buprenorphine, and meloxicam were common choices for post-operative analgesia after neuter surgery in dogs and cats. A semiclosed (non-rebreathing) system was used in animals weighing <10 kg, and a Mapleson E or F non-rebreathing circuit was used by 66/109 (61%) practices. Only 15/111 (14%) practices had a ventilator in their practice. A dedicated anaesthetist was usually used by 104/113 (92%) practices, and apnoea alarms, pulse oximeters, thermometers and oesophageal stethoscopes were the main monitoring devices available in practices. Loco-regional block, pain management, and anaesthetic drugs were the main topics of interest for continuing education. CONCLUSIONS AND CLINICAL RELEVANCE Responses by the veterinarians taking part in this survey indicated that they had a reasonably good standard of anaesthetic practice. A physical examination was carried out preanaesthesia, and premedication including analgesia was routinely administered to most patients. A dedicated anaesthetist usually monitored patients and most respondents reported they had access to basic anaesthetic monitoring equipment. Areas where changes could lead to improved anaesthetic practice were increased use of I/V catheterisation, endotracheal intubation, and supplementary oxygen, and reduced I/V fluid rates.
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Affiliation(s)
- H Sano
- a Veterinary Teaching Hospital, Institute of Veterinary, Animal and Biomedical Sciences , Massey University , Private Bag 11-222, Palmerston North , 4222 , New Zealand
| | - K Barker
- a Veterinary Teaching Hospital, Institute of Veterinary, Animal and Biomedical Sciences , Massey University , Private Bag 11-222, Palmerston North , 4222 , New Zealand
| | - T Odom
- a Veterinary Teaching Hospital, Institute of Veterinary, Animal and Biomedical Sciences , Massey University , Private Bag 11-222, Palmerston North , 4222 , New Zealand
| | - K Lewis
- b Department of Small Animal Clinical Sciences, Western College of Veterinary Medicine , University of Saskatchewan , 52 Campus Drive, Saskatoon , Saskatchewan , S7N 5B4 , Canada
| | - P Giordano
- a Veterinary Teaching Hospital, Institute of Veterinary, Animal and Biomedical Sciences , Massey University , Private Bag 11-222, Palmerston North , 4222 , New Zealand
| | - V Walsh
- a Veterinary Teaching Hospital, Institute of Veterinary, Animal and Biomedical Sciences , Massey University , Private Bag 11-222, Palmerston North , 4222 , New Zealand
| | - J P Chambers
- a Veterinary Teaching Hospital, Institute of Veterinary, Animal and Biomedical Sciences , Massey University , Private Bag 11-222, Palmerston North , 4222 , New Zealand
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Liang X, Jin J, Bi X, Kamruzzaman M, Kudo T, Sano H. Effects of Chinese herbal medicine and cold exposure on plasma glucose, leucine and energy metabolism in sheep. J Anim Physiol Anim Nutr (Berl) 2017; 102:e534-e541. [DOI: 10.1111/jpn.12792] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 07/04/2017] [Indexed: 11/29/2022]
Affiliation(s)
- X. Liang
- Heilongjiang Institute of Veterinary Drug and Feed Control; Harbin China
- Department of Animal Science; Faculty of Agriculture; Iwate University; Morioka Japan
| | - J. Jin
- Animal Genetic Resources Protection Center of Heilongjiang Province; Harbin China
| | - X. Bi
- Department of Animal Science; Faculty of Agriculture; Iwate University; Morioka Japan
| | - M. Kamruzzaman
- Department of Animal Science; Faculty of Agriculture; Iwate University; Morioka Japan
| | - T. Kudo
- Department of Animal Science; Faculty of Agriculture; Iwate University; Morioka Japan
| | - H. Sano
- Department of Animal Science; Faculty of Agriculture; Iwate University; Morioka Japan
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Biswas SK, Sano H, Shams MI, Yano H. Three-Dimensional-Moldable Nanofiber-Reinforced Transparent Composites with a Hierarchically Self-Assembled "Reverse" Nacre-like Architecture. ACS Appl Mater Interfaces 2017; 9:30177-30184. [PMID: 28812354 DOI: 10.1021/acsami.7b09390] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Achieving a structural hierarchy and a uniform nanofiller dispersion simultaneously remains highly challenging for obtaining a robust polymer nanocomposite of immiscible components. In this study, a remarkably facile Pickering emulsification approach is developed to fabricate hierarchical composites of immiscible acrylic polymer and native cellulose nanofibers by taking advantage of the dual role of the nanofibers as both emulsion stabilizer and polymer reinforcement. The composites feature a unique "reverse" nacre-like microstructure reinforced with a well-dispersed two-tier hierarchical nanofiber network, leading to a synergistic high strength, modulus, and toughness (20, 50, and 53 times that of neat polymer, respectively), high optical transparency (89%), high flexibility, and a drastically low thermal expansion (13 ppm K-1, 1/15th of the neat polymer). The nanocomposites have a three-dimensional-shape moldability, also their surface can be patterned with micro/nanoscale features with high fidelity by in situ compression molding, making them attractive as the substrate for flexible displays, smart contact lens devices, and photovoltaics. The Pickering emulsification approach should be broadly applicable for the fabrication of novel functional materials of various immiscible components.
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Affiliation(s)
- Subir K Biswas
- Research Institute for Sustainable Humanosphere, Kyoto University , Gokasho, Uji, Kyoto 611-0011, Japan
| | - Hironari Sano
- Research Institute for Sustainable Humanosphere, Kyoto University , Gokasho, Uji, Kyoto 611-0011, Japan
| | - Md Iftekhar Shams
- Forestry and Wood Technology Discipline, Khulna University , Khulna 9208, Bangladesh
| | - Hiroyuki Yano
- Research Institute for Sustainable Humanosphere, Kyoto University , Gokasho, Uji, Kyoto 611-0011, Japan
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Sano H, Chambers J. Ability of pulse wave transit time to detect changes in stroke volume and to estimate cardiac output compared to thermodilution technique in isoflurane-anaesthetised dogs. Vet Anaesth Analg 2017; 44:1057-1067. [DOI: 10.1016/j.vaa.2016.11.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 10/14/2016] [Accepted: 11/24/2016] [Indexed: 11/26/2022]
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Nishimura R, Sano H, Onda Y, Tsujino D, Ando K, Ebara F, Matsudaira T, Ishikawa S, Sakamoto T, Tajima N, Utsunomiya K. Population-based cross-sectional study on insulin resistance and insulin-secretory capacity in Japanese school children. J Diabetes Investig 2017; 8:672-676. [PMID: 28130842 PMCID: PMC5583948 DOI: 10.1111/jdi.12637] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 12/26/2016] [Accepted: 01/12/2017] [Indexed: 11/28/2022] Open
Abstract
AIMS/INTRODUCTION Little information is available regarding the status of insulin resistance (IR) and insulin deficiency (ID), as well as their relationship with obesity in children using the homeostasis model assessment (HOMA) in a population-based setting. MATERIALS AND METHODS The study included a total of 445 ninth-grade children participating in health check-up programs implemented in Tsunan Town, Niigata, Japan (boys/girls, 252/193 [participation rates: 98.1/95.5%]). HOMA of insulin resistance ≥2.5 was defined as IR, and HOMA of β-cell function <40 defined as ID. RESULTS The medians (25-75th percentiles) of HOMA of insulin resistance, HOMA of β-cell function, Disposition Index and body mass index in boys were 1.2 (0.8-1.7), 64 (44-93), 52 (43-64) and 19.2 (18.0-20.7) kg/m2 , respectively, vs 1.5 (1.0-2.0), 86 (63-120), 60 (50-74) and 20.4 (18.9-22.0) kg/m2 , respectively, in girls. The HOMA of insulin resistance, HOMA of β-cell function and Disposition Index values were significantly higher in the girls (P = 0.002, P < 0.001 and P < 0.001, respectively). Those with IR accounted for a significantly higher proportion of girls than boys (15.5/8.7%; P = 0.027); those with obesity accounted for 9.9/10.7% (boys/girls); and those with IR and obesity accounted for 2.4/4.7%. Those with ID accounted for a significantly higher proportion of boys than girls (20.6/8.8%; P = 0.001), whereas those with ID and obesity accounted for a very small proportion of either group (0.4/0.5%). CONCLUSIONS The presence of IR was higher among the girls. In contrast, ID was more frequent among the boys. The infrequent presence of ID among children might support the presence of non-obese type 2 diabetes adults in Japan.
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Affiliation(s)
- Rimei Nishimura
- Division of Diabetes, Metabolism & Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan.,Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Hironari Sano
- Division of Diabetes, Metabolism & Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan.,Tsunan Town Hospital, Niigata, Japan
| | - Yoshiko Onda
- Division of Diabetes, Metabolism & Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Daisuke Tsujino
- Division of Diabetes, Metabolism & Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Kiyotaka Ando
- Division of Diabetes, Metabolism & Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Futoshi Ebara
- Division of Diabetes, Metabolism & Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Toru Matsudaira
- Division of Diabetes, Metabolism & Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | | | | | - Naoko Tajima
- Jikei University School of Medicine, Tokyo, Japan
| | - Kazunori Utsunomiya
- Division of Diabetes, Metabolism & Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
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Fujiyama M, Sano H, Chambers JP, Gieseg M. Evaluation of an indirect oscillometric blood pressure monitor in anaesthetised dogs at three different anatomical locations. N Z Vet J 2017; 65:185-191. [DOI: 10.1080/00480169.2017.1295000] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- M Fujiyama
- Massey University Veterinary Teaching Hospital, Tennent Drive, Palmerston North 4442, New Zealand
- Current address: Japan Veterinary Cardiovascular Medical Center, 2-7-3 Nakagawa, Tsuduki-ku, Yokohama, Japan
| | - H Sano
- Massey University Veterinary Teaching Hospital, Tennent Drive, Palmerston North 4442, New Zealand
| | - JP Chambers
- Massey University Veterinary Teaching Hospital, Tennent Drive, Palmerston North 4442, New Zealand
| | - M Gieseg
- Veterinary Health Research, Waikato Innovation Park, Hamilton 3240, New Zealand
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Inoue S, Koshiro K, Yoshida Y, De Munck J, Nagakane K, Suzuki K, Sano H, Van Meerbeek B. Hydrolytic Stability of Self-etch Adhesives Bonded to Dentin. J Dent Res 2016; 84:1160-4. [PMID: 16304447 DOI: 10.1177/154405910508401213] [Citation(s) in RCA: 192] [Impact Index Per Article: 24.0] [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: 11/15/2022] Open
Abstract
Functional monomers chemically interact with hydroxyapatite that remains within submicron hybrid layers produced by mild self-etch adhesives. The functional monomer 10-MDP interacts most intensively with hydroxyapatite, and its calcium salt appeared most hydrolytically stable, as compared with 4-MET and phenyl-P. We investigated the hypothesis that additional chemical interaction of self-etch adhesives improves bond stability. The micro-tensile bond strength (μTBS) of the 10-MDP-based adhesive did not decrease significantly after 100,000 cycles, but did after 50,000 and 30,000 cycles, respectively, for the 4-MET-based and the phenyl-P-based adhesives. Likewise, the interfacial ultrastructure was unchanged after 100,000 thermocycles for the 10-MDP-based adhesive, while that of both the 4-MET- and phenyl-P-based adhesives contained voids and less-defined collagen. The findings of this study support the concept that long-term durability of adhesive-dentin bonds depends on the chemical bonding potential of the functional monomer.
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Affiliation(s)
- S Inoue
- Division for General Dentistry, Center for Dental Clinics, Hokkaido University Hospital, Kita 13 Nishi 7, Kita-ku, Sapporo 060-8586, Japan
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Nishimura R, Sano H, Shirasawa T, Matsudaira T, Miyashita Y, Ochiai H, Kokaze A, Tajima N, Utsunomiya K. Changes in the Composition of Adiponectin Fractions over a 3-Year Period in Children: A Population-Based Cohort Study. Child Obes 2016; 12:440-445. [PMID: 27584617 DOI: 10.1089/chi.2016.0135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Little information is available regarding changes in adiponectin fractions. The objective of this study was to examine changes in the composition of differing adiponectin fractions using a population-based, prospective pediatric cohort. METHODS A total of 358 fourth graders (9-10 years old) from Ina town in Saitama, Japan, were followed up for 3 years. BMI and total adiponectin (TAD), high-molecular weight adiponectin (HAD), medium-molecular weight adiponectin, and low-molecular weight adiponectin levels were measured in these subjects at baseline and at the end of the follow-up. RESULTS Of the fourth graders participating in the study, 326 (172 boys and 154 girls; follow-up rate, 91.1%) became available for follow-up. No significant changes were observed in TAD values after 3 years. HAD values were significantly decreased in both the boys (2.4 to 2.2 μg/mL: p < 0.001) and girls (3.1 to 2.7 μg/mL: p = 0.005). All values in the parameters examined at baseline and after 3 years were significantly correlated. A negative correlation was found between the ratios of follow-up compared to baseline values for BMI and those for TAD (boys, r = -0.322, p < 0.001; girls, r = -0.433, p < 0.001) as well as those for HAD (boys, r = -0.353, p < 0.001; girls, r = -0.351, p < 0.001). CONCLUSIONS HAD had the most robust correlation between its values at baseline and those after 3 years in both boys and girls. The changes in HAD also had the most robust correlation between the changes in BMI in 3 years.
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Affiliation(s)
- Rimei Nishimura
- 1 Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine , Tokyo, Japan .,2 Graduate School of Public Health, University of Pittsburgh , Pittsburgh, PA
| | - Hironari Sano
- 1 Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine , Tokyo, Japan
| | - Takako Shirasawa
- 3 Department of Public Health, Showa University School of Medicine , Tokyo, Japan
| | - Toru Matsudaira
- 1 Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine , Tokyo, Japan
| | - Yumi Miyashita
- 1 Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine , Tokyo, Japan
| | - Hirotaka Ochiai
- 3 Department of Public Health, Showa University School of Medicine , Tokyo, Japan
| | - Akatsuki Kokaze
- 3 Department of Public Health, Showa University School of Medicine , Tokyo, Japan
| | - Naoko Tajima
- 4 Jikei University School of Medicine , Tokyo, Japan
| | - Kazunori Utsunomiya
- 1 Division of Diabetes, Metabolism, and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine , Tokyo, Japan
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Kitano M, Kitano S, Sekiguchi M, Azuma N, Hashimoto N, Tsunoda S, Matsui K, Sano H. AB0394 Early Effect of Tofacitinib on Osteoclast Regulator in Rheumatoid Arthritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.1413] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Sano H, Kato Y, Singh F, Kanaoka N, Shankar K, Katada K, Kanno T. Treatment of Cerebral Aneurysms: Surgical, Endovascular or Combined Intervention. Interv Neuroradiol 2016; 4 Suppl 1:153-8. [DOI: 10.1177/15910199980040s132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/1998] [Accepted: 08/25/1998] [Indexed: 11/17/2022] Open
Abstract
A retrospective study of 437 cases of cerebral aneurysms over a 4 year period is reported. Surgical clipping was performed in 322 cases (254 ruptured and 68 incidental aneurysms) and endovascular embolization was done in 50 cases (26 ruptured and 24 incidental aneurysms). No intervention (either surgical or endovascular) was performed in 65 patients. In the direct surgical treatment group, mortality was 1.5% in incidental and 9.8% in ruptured aneurysms and good recovery was seen in 98.5% and 74.8% cases respectively. In the endovascular intervention group, results were poor due to the severity of their neurological grading and older age. Mortality was 42.3% in ruptured and 4.2% in incidental aneurysms. Six out of 26 ruptured and 11 out 24 incidental aneurysm patients had complications in the endovascular treatment group. We have discussed the results and indications for both modes of treatment in our study.
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Affiliation(s)
| | | | | | | | | | - K. Katada
- Department of Radiology, Fujita Health University, School of Medicine; Toyoake
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Furukawa T, Matsui K, Kitano M, Kitano S, Yokoyama Y, Sekiguchi M, Azuma N, Sano H. AB0646 The Role of Serum YKL-40 in Systemic Sclerosis (SSC). Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3073] [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: 11/03/2022]
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Takata M, Tsunoda S, Ogita C, Yokoyama Y, Abe T, Maruoka M, Furukawa T, Yoshikawa T, Tanaka K, Saitou A, Nishioka A, Sekiguti M, Azuma N, Kitano M, Matsui K, Shimizu E, Sano H. AB0365 The Efficacy and Safety of Abatacept as A First Biologics in Japanese Rheumatoid Arthritis Patients Complicated by Pulmonary Involvement. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2645] [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: 11/03/2022]
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Yokoyama Y, Iwasaki T, Satake A, Shibasaki S, Karasaki M, Moriya N, Kitano S, Matsui K, Sano H. FRI0061 Involvement of Regulatory T Cells and Micrornas in Regulation of Collagen-Induced Arthritis in Mice Treated with IL-2/anti-IL-2 Immune Complexes. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3086] [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: 11/04/2022]
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Fusama M, Yukioka K, Kuroiwa T, Yukioka C, Inoue M, Higashi K, Ogata A, Murata N, Kuritani T, Maeda K, Sano H, Yukioka M, Nakahara H. SAT0633-HPR Social Support May Be Important for Improving Patient Satisfaction and Health Status in Patients with Rheumatoid Arthritis Treated with Biologics. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5277] [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: 11/04/2022]
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Fusama M, Yukioka K, Kuroiwa T, Yukioka C, Inoue M, Higashi K, Ogata A, Murata N, Kuritani T, Maeda K, Sano H, Yukioka M, Nakahara H. SAT0632-HPR The Efficacy of Biologics on Health Status Including Psychological Status, Self-Efficacy and Patient Satisfaction in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5193] [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: 11/04/2022]
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Onda Y, Nishimura R, Morimoto A, Sano H, Utsunomiya K, Tajima N. Age at Transition from Pediatric to Adult Care Has No Relationship with Mortality for Childhood-Onset Type 1 Diabetes in Japan: Diabetes Epidemiology Research International (DERI) Mortality Study. PLoS One 2016; 11:e0150720. [PMID: 26937952 PMCID: PMC4777500 DOI: 10.1371/journal.pone.0150720] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 02/18/2016] [Indexed: 11/18/2022] Open
Abstract
Objective To follow up Japanese patients with type 1 diabetes for a maximum of 40 years to examine when they transitioned from pediatric care to adult care and to explore whether the attending physician, i.e., pediatrician or internist, was associated with prognosis. Methods Participants consisted of 1,299 patients who had been diagnosed as having type 1 diabetes at less than 15 years old between 1965 and 1979 identified through two nationwide surveys. Patients were classified as having received either pediatric care or adult care at the age of 15 and 30, and were compared for differences in mortality associated with the attending physician. Results The attending physicians were confirmed for a total of 1,093 patients at the age of 15. Of these patients, 43.8% and 40.3% received pediatric care and adult care, respectively. Of the 569 patients receiving pediatric care, 74.2%, 56.6%, 53.4%, and 51.3% continued with pediatric care at 20, 30, 40, and 50 years old, respectively. The attending physicians (pediatrician or internist) at the age of 15 and 30 had no significant impact on their survival (P = 0. 892, 0.411, respectively). Conclusions More than half of the patients who had received pediatric care at the age of 15 continued to receive pediatric care even after the age of 30, suggesting that their transition was far from smooth, while the attending physician at the age of both 15 and 30 was not a prognostic factor for mortality. Thus, the timing for transition to adult care in these patients has no relationship with mortality in Japan.
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Affiliation(s)
- Yoshiko Onda
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
- * E-mail:
| | - Rimei Nishimura
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Aya Morimoto
- Department of Internal Medicine, Morimoto Hospital, Tokyo, Japan
| | - Hironari Sano
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Kazunori Utsunomiya
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Naoko Tajima
- Jikei University School of Medicine, Tokyo, Japan
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Futami K, Kitabayashi T, Sano H, Misaki K, Uchiyama N, Ueda F, Nakada M. Inflow Jet Patterns of Unruptured Cerebral Aneurysms Based on the Flow Velocity in the Parent Artery: Evaluation Using 4D Flow MRI. AJNR Am J Neuroradiol 2016; 37:1318-23. [PMID: 26892984 DOI: 10.3174/ajnr.a4704] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 12/16/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Inflow jet characteristics may be related to aneurysmal bleb formation and rupture. We investigated the visualization threshold on the basis of the flow velocity in the parent artery to classify the inflow jet patterns observed on 4D flow MR imaging. MATERIALS AND METHODS Fifty-seven unruptured aneurysms (24 bifurcation and 33 sidewall aneurysms) were subjected to 4D flow MR imaging to visualize inflow streamline bundles whose velocity exceeded visualization thresholds corresponding to 60%, 75%, and 90% of the maximum flow velocity in the parent artery. The shape of the streamline bundle was determined visually, and the inflow jet patterns were classified as concentrated, diffuse, neck-limited, and unvisualized. RESULTS At the 75% threshold, bifurcation aneurysms exhibited a concentrated inflow jet pattern at the highest rate. At this threshold, the inflow jets were concentrated in 13 aneurysms (group C, 22.8%), diffuse in 18 (group D, 31.6%), neck-limited in 11 (group N, 19.3%), and unvisualized in 15 (group U, 26.3%). In 16 (28.1%) of the 57 aneurysms, the inflow jet pattern was different at various thresholds. Most inflow parameters, including the maximum inflow velocity and rate, the inflow velocity ratio, and the inflow rate ratio, were significantly higher in groups C and D than in groups N and U. CONCLUSIONS The inflow jet pattern may depend on the threshold applied to visualize the inflow streamlines on 4D flow MR imaging. For the classification of the inflow jet patterns on 4D flow MR imaging, the 75% threshold may be optimal among the 3 thresholds corresponding to 60%, 75%, and 90% of the maximum flow velocity in the parent artery.
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Affiliation(s)
- K Futami
- From the Department of Neurosurgery, Mattoh-Ishikawa Central Hospital (K.F.), Ishikawa, Japan
| | - T Kitabayashi
- Departments of Neurosurgery (T.K., H.S., K.M., N.U., M.N.)
| | - H Sano
- Departments of Neurosurgery (T.K., H.S., K.M., N.U., M.N.)
| | - K Misaki
- Departments of Neurosurgery (T.K., H.S., K.M., N.U., M.N.)
| | - N Uchiyama
- Departments of Neurosurgery (T.K., H.S., K.M., N.U., M.N.)
| | - F Ueda
- Radiology (F.U.), Kanazawa University School of Medicine, Ishikawa, Japan
| | - M Nakada
- Departments of Neurosurgery (T.K., H.S., K.M., N.U., M.N.)
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Kaku K, Katou M, Igeta M, Ohira T, Sano H. Efficacy and safety of pioglitazone added to alogliptin in Japanese patients with type 2 diabetes mellitus: a multicentre, randomized, double-blind, parallel-group, comparative study. Diabetes Obes Metab 2015; 17:1198-201. [PMID: 26277887 DOI: 10.1111/dom.12555] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 06/07/2015] [Accepted: 08/13/2015] [Indexed: 11/29/2022]
Abstract
A phase IV, multicentre, randomized, double-blind, parallel-group, comparative study was conducted in Japanese subjects with type 2 diabetes mellitus (T2DM) who had inadequate glycaemic control, despite treatment with alogliptin in addition to diet and/or exercise therapy. Subjects with glycated haemoglobin (HbA1c) concentrations of 6.9-10.5% were randomized to receive 16 weeks' double-blind treatment with pioglitazone 15 mg, 30 mg once daily or placebo added to alogliptin 25 mg once daily. The primary endpoint was the change in HbA1c from baseline at the end of treatment period (week 16). Both pioglitazone 15 and 30 mg combination therapy resulted in a significantly greater reduction in HbA1c than alogliptin monotherapy [-0.80 and -0.90% vs 0.00% (the least squares mean using analysis of covariance model); p < 0.0001, respectively]. The overall incidence rates of treatment-emergent adverse events were similar among the treatment groups. Pioglitazone/alogliptin combination therapy was effective and generally well tolerated in Japanese subjects with T2DM and is considered to be useful in clinical settings.
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Affiliation(s)
- K Kaku
- Department of Medicine, Kawasaki Medical School, Okayama, Japan
| | - M Katou
- Takeda Development Center Japan, Takeda Pharmaceutical Company Limited, Osaka, Japan
| | - M Igeta
- Takeda Development Center Japan, Takeda Pharmaceutical Company Limited, Osaka, Japan
| | - T Ohira
- Takeda Development Center Japan, Takeda Pharmaceutical Company Limited, Osaka, Japan
| | - H Sano
- Takeda Development Center Japan, Takeda Pharmaceutical Company Limited, Osaka, Japan
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Wu G, Zhang K, Takagi K, Sano H, Yui H. Rubber-toughened polyamide-6 with a low thermal expansion coefficient: effect of preferential distribution of rubber and inorganic filler. POLYM INT 2015. [DOI: 10.1002/pi.5036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Guozhang Wu
- Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 PR China
| | - Kun Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 PR China
| | - Kiyoji Takagi
- R&D Center, Yokkaichi Plant; Mitsubishi Chemical Group; Mie 510-8530 Japan
| | - Hironari Sano
- R&D Center, Yokkaichi Plant; Mitsubishi Chemical Group; Mie 510-8530 Japan
| | - Hiroshi Yui
- Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering; East China University of Science and Technology; Shanghai 200237 PR China
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Onda Y, Nishimura R, Morimoto A, Sano H, Utsunomiya K, Tajima N. Causes of death in patients with childhood-onset type 1 diabetes receiving dialysis in Japan: Diabetes Epidemiology Research International (DERI) Mortality Study. J Diabetes Complications 2015; 29:903-7. [PMID: 26096815 DOI: 10.1016/j.jdiacomp.2015.05.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 05/25/2015] [Accepted: 05/26/2015] [Indexed: 11/28/2022]
Abstract
AIMS To investigate the causes of death and how they changed over time in patients with childhood-onset type 1 diabetes who were receiving dialysis. METHODS Of the 1384 patients who were diagnosed with type 1 diabetes at<18 years of age between 1965 and 1979, 113 who were subsequently confirmed as having received dialysis and having died as of January 1, 2008 were found eligible for the study. The cause of death trends were expressed according to the duration of dialysis. RESULTS The leading causes of death were end-stage renal disease (ESRD) (36.3%), cardiovascular disease (CVD) (31.9%), and infections (20.3%). Among CVD, cerebral hemorrhage was the most frequent (38.9%) and showed a significant trend for an increase in the duration of dialysis (P=0.01, the Cochran-Armitage trend test). The mortality from ESRD concentrated within 5 years of dialysis and that from CVD increased after 10 years of dialysis, while the mortality from infections peaked during 5 to 10 years from initiation of dialysis. CONCLUSIONS The leading causes of death in dialysis patients with type 1 diabetes were ESRD, CVD, and infections. As the duration of dialysis increased, however, CVD contributed more to mortality. Special attention should be paid to CVD, particularly cerebral hemorrhage, to improve the long-term prognosis of patients.
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Affiliation(s)
- Yoshiko Onda
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan.
| | - Rimei Nishimura
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan; Graduate School of Public Health, University of Pittsburgh, 130 De Soto Street, Pittsburgh, PA 15261, USA.
| | - Aya Morimoto
- Department of Internal Medicine, Morimoto Hospital, 2-2-5 Honcho Kichijoji, Musashino-shi, Tokyo, 180-0004, Japan.
| | - Hironari Sano
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan.
| | - Kazunori Utsunomiya
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan.
| | - Naoko Tajima
- Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan.
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Katayama M, Miyamura T, Suenaga Y, Suematsu E, Urata Y, Matsui T, Kaneko A, Kida D, Sato T, Kawabe Y, Yoshizawa S, Tsunoda S, Sano H, Saisho K, Takahi K, Nishino J, Tohma S. AB0365 Prevalence and Factors Associated with Depression and Anxiety in Patients with Rheumatoid Arthritis Using Data from a Large Japanese Cohort Database in 2013 (Ninja 2013 Database). Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Sekiguchi M, Fujii T, Kitano M, Matsui K, Hashimoto H, Yokota A, Miki K, Yamamoto A, Fujimoto T, Hidaka T, Shimmyo N, Maeda K, Kuroiwa T, Yoshii I, Murakami K, Ohmura K, Morita S, Kawahito Y, Nishimoto N, Mimori T, Sano H. AB0472 Predicting Factors Associated with Sustained Clinical Remission by Abatacept are Different Between in Younger and Elderly Patients with Biologic-Naïve Rheumatoid Arthritis (Abroad Study). Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Fusama M, Yukioka K, Kuroiwa T, Yukioka C, Yukioka T, Inoue M, Nakanishi T, Takai N, Higashi K, Miura Y, Murata N, Kuritani T, Maeda K, Sano H, Yukioka M, Nakahara H. FRI0631-HPR Patient Satisfaction is Correlated with Role, Psychological State and Patient Global Assessment in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4562] [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: 11/03/2022]
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Kitano M, Kitano S, Sekiguchi M, Azuma N, Abe T, Ogita C, Yokoyama Y, Yoshikawa T, Furukawa T, Hino T, Saito A, Nishioka A, Tsunoda S, Hashimoto N, Matsui K, Iwasaki T, Sano H. SAT0158 Comparison of Early Effect on Bone Metabolism in Patients with Active Rheumatoid Arthritis After Tocilizumab or Abatacept Therapy: Results from Propensity Score Analysis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3219] [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: 11/04/2022]
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Hashimoto N, Uchiyama S, Kitano M, Sano H, Iwasaki T, Hashimoto T. FRI0414 Assessment of Salivary Gland Functions and Submandibular Gland Ultrasonography Findings During 10-Years Follow-Up in Patients with Sjögren's Syndrome. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.1700] [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: 11/04/2022]
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Yukioka C, Nakahara H, Fusama M, Yukioka K, Kuroiwa T, Yukioka T, Inoue M, Nakanishi T, Takai N, Higashi K, Miura Y, Murata N, Kuritani T, Maeda K, Sano H, Yukioka M. AB1216-HPR A Study of Possible Correlations of Sleep Disturbance with Disease Activity, Psychological State and Health Status in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4455] [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: 11/04/2022]
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Yamamoto N, Kijima H, Nagamoto H, Kurokawa D, Takahashi H, Sano H, Itoi E. Outcome of Bankart repair in contact versus non-contact athletes. Orthop Traumatol Surg Res 2015; 101:415-9. [PMID: 25907514 DOI: 10.1016/j.otsr.2015.03.008] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2014] [Revised: 02/03/2015] [Accepted: 03/09/2015] [Indexed: 02/02/2023]
Abstract
BACKGROUND The clinical results of arthroscopic Bankart repair for contact athletes varies according to published reports. The purposes of this study were to analyze the clinical outcome of open or arthroscopic Bankart repair and to investigate the results in contact and non-contact athletes. HYPOTHESIS Clinical outcome of arthroscopic Bankart repair is similar to that of open procedure. PATIENTS AND METHODS One hundred patients with recurrent anterior shoulder dislocation without a large bony defect were retrospectively reviewed. Fifty-one contact and 49 non-contact athletes were found with a mean follow-up of 17 months. Forty-nine shoulders underwent arthroscopic Bankart repairs; 51 shoulders had open Bankart repairs. RESULTS In non-contact athletes, there was a 5% (1/22 cases) recurrence rate in the open group and 4% (1/27 cases) in the arthroscopic group. In contrast, in contact athletes, there was a 10% (3/29 cases) recurrence rate in the open group and 14% (3/22 cases) in the arthroscopic group. There was no significant difference in the recurrence rate between contact and non-contact athletes, although contact athletes showed two to three times a higher recurrence rate than that of non-contact athletes. The Rowe score and Constant score showed no significant difference between the two procedures and between the contact and non-contact athletes. The rate of the complete return to sports showed no significant difference between contact and non-contact athletes. CONCLUSION The recurrence rate of Bankart repair in the contact athletes was 2 times higher in the open group and 3 times higher in the arthroscopic group than in the non-contact athletes. Clinical outcome of arthroscopic Bankart repair was similar to that of open procedure.
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Affiliation(s)
- N Yamamoto
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan
| | - H Kijima
- Department of Orthopaedic Surgery, Akita University School of Medicine, Akita, Japan
| | - H Nagamoto
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan
| | - D Kurokawa
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan
| | - H Takahashi
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan
| | - H Sano
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan
| | - E Itoi
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan.
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46
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Iwasaki T, Yokoyama Y, Kitano S, Satake A, Matsui K, Sano H. THU0071 Paradoxical Effects of Interleukin-2/Anti-interleukin-2 Monoclonal Antibody Immune Complex on Collagen-Induced Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4302] [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: 11/04/2022]
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47
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Saito K, Sano H, Furuta Y, Yamanishi J, Omatsu T, Ito Y, Fukuzaki H. Calcium supplementation in salt-dependent hypertension. Contrib Nephrol 2015; 90:25-35. [PMID: 1959352 DOI: 10.1159/000420119] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
To clarify the mechanism of the antihypertensive effect of oral Ca loading, we studied the effect of Ca supplementation on salt-induced blood pressure elevations in patients with essential hypertension and DOCA-salt hypertensive rats. When the diet was changed from low to high salt (300 mEq/day), the percent increase in mean blood pressure was smaller (p less than 0.01) in the Ca-supplemented (2,160 mg/day) patients than in the Ca-restricted (250 mg/day) ones. Oral Ca loading resulted in a smaller weight gain, a greater urinary sodium excretion, and an increase in red cell Mg. In the experimental study, high Ca (4% CaCl2) intake attenuated the blood pressure elevation in DOCA-salt-treated rats, accompanied with an increase in urinary sodium excretion, with the resultant attenuation in intra- and extracellular sodium retention. The decrease in catecholamine contents of hearts was improved, and a higher survival rate was observed in Ca-supplemented DOCA-salt rats. The results suggest that Ca supplementation may prevent a rise in BP in salt-dependent hypertension by inducing natriuresis with the resultant attenuation in sodium retention. The altered intracellular Mg level in hypertensive patients and the normalization of enhanced sympathetic nervous activity in DOCA-salt rats may, in part, be involved in its mechanism.
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Affiliation(s)
- K Saito
- Department of Internal Medicine, Sanda Municipal Hospital, Japan
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48
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Horiuchi S, Higashi T, Ikeda K, Saishoji T, Jinnouchi Y, Sano H, Araki N. Structures of advanced glycation end products and their role in pathophysiological states. Contrib Nephrol 2015; 112:32-41. [PMID: 7554991 DOI: 10.1159/000424090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- S Horiuchi
- Department of Biochemistry, Kumamoto University School of Medicine, Japan
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49
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Chen SF, Kato Y, Sinha R, Kumar A, Watabe T, Imizu S, Oda J, Oguri D, Sano H, Hirose Y. Surgical treatment of patients with unruptured intracranial aneurysms. J Clin Neurosci 2014; 22:69-72. [PMID: 25443084 DOI: 10.1016/j.jocn.2014.05.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 05/18/2014] [Accepted: 05/24/2014] [Indexed: 11/29/2022]
Abstract
We present our experience with elective microsurgical clipping of unruptured intracranial aneurysms (UIA) and analyze this management. A total of 150 patients with UIA were reviewed and data were collected with regard to age, sex, presence of symptoms, location and size of the aneurysms, surgical complications and postoperative 1 year outcomes. Aneurysm size was assessed either by three-dimensional CT angiography or digital subtraction angiogram. Glasgow Outcome Scale was used to assess clinical outcomes. One hundred and fifty patients with 165 aneurysms were treated in this series. The mean size of the UIA was 5.6mm. Eighty aneurysms (48.5%) were less than 5mm in size, and 73 (44.2%) were from 5 to 10mm. Ten (6.1%) of the aneurysms were large and two (1.2%) were giant. One hundred and forty-three were asymptomatic and seven were symptomatic before surgery. The outcome was good in 147 patients (98%), and only three patients (2%) had a treatment-related unfavorable outcome. Five patients experienced transient neurological deficits and one patient experienced permanent neurological deficits. Overall 98.7% of the treated aneurysms were satisfactorily obliterated. Wound complications were seen only in three patients. In conclusion, UIA pose a significant challenge for neurosurgeons, where a delicate balance between benefits and possible risks must be weighed. If the requisite expertise is available, they can be treated surgically with low morbidity and a good outcome at specialized neurovascular centers.
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Affiliation(s)
- S F Chen
- Department of Neurosurgery, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Y Kato
- Department of Neurosurgery, Fujita Health University Hospital, 1-98, Dengakugakubo, Kutsukake, Toyoake, Aichi 470-1192, Japan.
| | - R Sinha
- Department of Neurosurgery, St. Stephen's Hospital, Delhi, India
| | - A Kumar
- Department of Neurosurgery, Nizam's Institute of Medical Science, Hyderabad, India
| | - T Watabe
- Department of Neurosurgery, Fujita Health University Hospital, 1-98, Dengakugakubo, Kutsukake, Toyoake, Aichi 470-1192, Japan
| | - S Imizu
- Department of Neurosurgery, Fujita Health University Hospital, 1-98, Dengakugakubo, Kutsukake, Toyoake, Aichi 470-1192, Japan
| | - J Oda
- Department of Neurosurgery, Fujita Health University Hospital, 1-98, Dengakugakubo, Kutsukake, Toyoake, Aichi 470-1192, Japan
| | - D Oguri
- Department of Neurosurgery, Fujita Health University Hospital, 1-98, Dengakugakubo, Kutsukake, Toyoake, Aichi 470-1192, Japan
| | - H Sano
- Department of Neurosurgery, Fujita Health University Hospital, 1-98, Dengakugakubo, Kutsukake, Toyoake, Aichi 470-1192, Japan
| | - Y Hirose
- Department of Neurosurgery, Fujita Health University Hospital, 1-98, Dengakugakubo, Kutsukake, Toyoake, Aichi 470-1192, Japan
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50
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Futami K, Sano H, Kitabayashi T, Misaki K, Nakada M, Uchiyama N, Ueda F. Parent artery curvature influences inflow zone location of unruptured sidewall internal carotid artery aneurysms. AJNR Am J Neuroradiol 2014; 36:342-8. [PMID: 25234030 DOI: 10.3174/ajnr.a4122] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Future aneurysmal behaviors or treatment outcomes of cerebral aneurysms may be related to the hemodynamics around the inflow zone. Here we investigated the influence of parent artery curvature on the inflow zone location of unruptured sidewall internal carotid artery aneurysms. MATERIALS AND METHODS In 32 aneurysms, the inflow zone location was decided by 4D flow MR imaging, and the radius of the parent artery curvature was measured in 2D on an en face image of the section plane corresponding to the aneurysm orifice. RESULTS The inflow zone was on the distal neck in 10 (group 1, 31.3%), on the lateral side in 19 (group 2, 59.4%), and on the proximal neck in 3 (group 3, 9.4%) aneurysms. The radius in group 1 was significantly larger than that in group 2 (8.3 mm [4.5 mm] versus 4.5 mm [1.9 mm]; median [interquartile range]; P < .0001). All 7 aneurysms with a radius of >8.0 mm were in group 1. All 18 aneurysms with a radius of <6.0 mm were in group 2 or 3. In two group 3 aneurysms, the inflow zone was located in a part of the neck extending beyond the central axis of the parent artery. CONCLUSIONS The inflow zone locations of sidewall aneurysms can be influenced by the parent artery curvature evaluated in 2D on an en face image of the section plane corresponding to the aneurysm orifice.
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Affiliation(s)
- K Futami
- From the Department of Neurosurgery (K.F.), Mattoh-Ishikawa Central Hospital, Ishikawa, Japan
| | - H Sano
- Departments of Neurosurgery (H.S., T.K., K.M., M.N., N.U.)
| | - T Kitabayashi
- Departments of Neurosurgery (H.S., T.K., K.M., M.N., N.U.)
| | - K Misaki
- Departments of Neurosurgery (H.S., T.K., K.M., M.N., N.U.)
| | - M Nakada
- Departments of Neurosurgery (H.S., T.K., K.M., M.N., N.U.)
| | - N Uchiyama
- Departments of Neurosurgery (H.S., T.K., K.M., M.N., N.U.)
| | - F Ueda
- Radiology (F.U.), Kanazawa University School of Medicine, Ishikawa, Japan
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