1
|
Ishii H, Ishikawa Y, Mizobe F, Nomura M, Yamanaka T, Tanabe S, Nagata SI, Yamada M, Leung GNW. Pharmacokinetic study of osilodrostat and identification of mono-hydroxylated metabolite in equine plasma for the purpose of doping control. Rapid Commun Mass Spectrom 2024; 38:e9695. [PMID: 38355879 DOI: 10.1002/rcm.9695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 02/16/2024]
Abstract
RATIONALE Osilodrostat is an inhibitor of 11-beta-hydroxylase (CYP11B) and is used for the treatment of Cushing's disease but also categorized as an anabolic agent. The use of osilodrostat is prohibited in horseracing and equestrian sports. To the best of our knowledge, this is the first metabolic study of osilodrostat in equine plasma. METHODS Potential metabolites of osilodrostat were identified by differential analysis using data acquired from pre- and post-administration plasma samples after protein precipitation with liquid chromatography electrospray ionization high-resolution mass spectrometry (LC/ESI-HRMS). [Correction added on 27 January 2023, after first online publication: In the preceding sentence, "C-HRMS" was changed to "LC/ESI-HRMS" in this version.] For quantification of osilodrostat, a strong cation exchange solid-phase extraction was employed, and the extracts were analyzed using LC/ESI-triple quadrupole tandem mass spectrometry (LC/ESI-QqQ-MS/MS) to establish its elimination profile. Such extracts were further analyzed using LC/ESI-HRMS to investigate the detectability of osilodrostat and its identified mono-hydroxylated metabolite over a 2-week sampling period. RESULTS Mono-hydroxylated osilodrostat was identified based on the differential analysis and mass spectrometric interpretations, and it was found to be the most abundant metabolite in plasma. Elimination profile of osilodrostat in plasma was successfully established over the 24-h post-administration period. Both osilodrostat and its mono-hydroxylated metabolite were detected up to the last sampling point at 2 weeks using HRMS, and osilodrostat could be confirmed up to 8-day post-administration with its reference material using HRMS as well. CONCLUSIONS For doping control, screening of both the parent drug osilodrostat and its mono-hydroxylated metabolite in equine plasma would be recommended due to their extended detection windows of up to 2 weeks. Given the availability of reference material for potential confirmation in forensic samples, osilodrostat is considered the most appropriate monitoring target.
Collapse
Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Japan
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan
| | - Yuhiro Ishikawa
- Anti-Doping Section, Equine Department, Japan Racing Association, Tokyo, Japan
| | - Fumiaki Mizobe
- Anti-Doping Section, Equine Department, Japan Racing Association, Tokyo, Japan
| | - Motoi Nomura
- Anti-Doping Section, Equine Department, Japan Racing Association, Tokyo, Japan
| | - Takashi Yamanaka
- Clinical Veterinary Medicine Division, Equine Research Institute, Shimotsuke, Japan
| | - Sohei Tanabe
- Clinical Veterinary Medicine Division, Equine Research Institute, Shimotsuke, Japan
| | - Shun-Ichi Nagata
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Japan
| | - Masayuki Yamada
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Japan
| | | |
Collapse
|
2
|
Ishii H, Shintaku T, Yoshizawa S, Maeda T, Ikegami H. Residual Deformity of the Trochlea After Non-displaced Supracondylar Fracture in a Child: A Case Report. Cureus 2024; 16:e54734. [PMID: 38405659 PMCID: PMC10884716 DOI: 10.7759/cureus.54734] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/22/2024] [Indexed: 02/27/2024] Open
Abstract
Residual deformity of the trochlea after fractures of the distal end of the humerus in children is well known and is referred to as fishtail deformity. Despite numerous reports on this entity, the reason for various types of fractures with the same results remains unknown. Fishtail deformities after non-displaced supracondylar fractures are very rare. A 7-year-old boy with a non-displaced supracondylar fracture was treated conservatively. Three years later, the patient returned to our hospital complaining of mild elbow pain. Radiography revealed a fishtail deformity of the trochlea due to the premature fusion of the epiphysis. At the latest follow-up at the age of 17 years, only a marginal limitation at the excursion of the elbow was observed, and no additional treatment was needed. Fishtail deformities can occur even after a non-displaced supracondylar fracture. Long-term follow-ups are required in children with distal humeral fractures.
Collapse
Affiliation(s)
- Hideaki Ishii
- Department of Orthopaedic Surgery, Toho University Ohashi Medical Center, Tokyo, JPN
| | - Takanori Shintaku
- Department of Orthopaedic Surgery, Toho University Ohashi Medical Center, Tokyo, JPN
| | - Shu Yoshizawa
- Department of Orthopaedic Surgery, Toho University Ohashi Medical Center, Tokyo, JPN
| | - Takahiro Maeda
- Department of Orthopaedic Surgery, Toho University Ohashi Medical Center, Tokyo, JPN
| | - Hiroyasu Ikegami
- Department of Orthopaedic Surgery, Toho University Ohashi Medical Center, Tokyo, JPN
| |
Collapse
|
3
|
Ishii H, Okubo Y, Doi T, Tsutsumimoto K, Nakakubo S, Kurita S, Uemura K, Misu S, Sawa R, Hashiguchi Y, Shimada H, Arai H. Effect of driving training on car crashes and driving skills in older people: A systematic review and meta-analysis. Geriatr Gerontol Int 2023; 23:771-778. [PMID: 37828779 DOI: 10.1111/ggi.14702] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 09/13/2023] [Accepted: 09/29/2023] [Indexed: 10/14/2023]
Abstract
The primary aim of this systematic review was to examine the efficacy of driving interventions with regard to a reduction in motor vehicle crashes and improvements in driving skills among older people. The secondary aim was to identify the optimal type (on-road or off-road) and dosage (period, sessions, and duration) of driving interventions for improving driving skills in older people. We searched MEDLINE, EMBASE, PsycINFO, and Scopus of Systematic Reviews for papers published from their inception to December 1, 2020, as well as the reference lists of the included papers. The selected studies were randomized controlled trials examining the effects of driving interventions among community-dwelling older drivers aged 65 years and over. A meta-analysis of two studies (n = 960) showed that driving interventions significantly reduced the number of motor vehicle crashes per person-years. Ten studies (n = 575) were included in the meta-analysis showing that the interventions significantly improved the driving skill scores. Driving skill scores significantly improved after on-road training, and in interventions of at least 3 h, 3 sessions, and 3 weeks. Driving interventions significantly improve driving skills and reduce motor vehicle crashes among older drivers aged 65 years and over. On-road training is more efficacious than off-road training and driving interventions of at least 3 h taking place in 3 sessions over a period of 3 weeks may be required to improve driving skills in older drivers. Geriatr Gerontol Int 2023; 23: 771-778.
Collapse
Affiliation(s)
- Hideaki Ishii
- Department of Physical Therapy, School of Health Sciences at Narita, International University of Health and Welfare, Narita City, Japan
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu City, Japan
| | - Yoshiro Okubo
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, Sydney, Australia
- School of Population Health, University of New South Wales, Sydney, Australia
| | - Takehiko Doi
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu City, Japan
| | - Kota Tsutsumimoto
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu City, Japan
| | - Sho Nakakubo
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu City, Japan
| | - Satoshi Kurita
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu City, Japan
| | - Kazuki Uemura
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu City, Japan
- Graduate School of Rehabilitation Science, Osaka Metropolitan University, Habikino City, Japan
| | - Shogo Misu
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu City, Japan
- Department of Physical Therapy, Faculty of Nursing and Rehabilitation, Konan Women's University, Kobe, Japan
| | - Ryuichi Sawa
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu City, Japan
- Department of Physical Therapy, Faculty of Health Science, Juntendo University, Tokyo, Japan
| | - Yu Hashiguchi
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu City, Japan
- Department of Physical Therapy, Faculty of Rehabilitation, Gunma Paz University, Takasaki-shi, Japan
| | - Hiroyuki Shimada
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu City, Japan
| | - Hidenori Arai
- National Center for Geriatrics and Gerontology, Obu City, Japan
| |
Collapse
|
4
|
Ishii H, Shibuya M, Kusano K, Sone Y, Kamiya T, Wakuno A, Ito H, Miyata K, Yamada M, Leung GNW. First evidence of the incorporation of daprodustat and other hypoxia-inducible factor stabilizers into equine hair by passive transfer based on segmental quantitative analysis. J Pharm Biomed Anal 2023; 235:115600. [PMID: 37516063 DOI: 10.1016/j.jpba.2023.115600] [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] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/17/2023] [Accepted: 07/21/2023] [Indexed: 07/31/2023]
Abstract
Daprodustat is a hypoxia-inducible factor prolyl hydroxylase domain (HIF-PHD) inhibitor and is used as an erythropoiesis stimulant for the treatment of anemia in humans. In general, administering daprodustat to horses will result in a lifetime ban from both equestrian sports and horseracing by the International Federation of Horseracing Authorities and the Fédération Équestre Internationale, respectively. To control the misuse/abuse of daprodustat, we conducted nasoesophageal administration of daprodustat (100 mg/day for 3 days) to three thoroughbred mares and the post-administration hair samples collected from the three horses over 6 months were analyzed to demonstrate the potential longer-term detection of daprodustat and its metabolites in hair compared with the detection times of daprodustat of 1 and 2 weeks in plasma and urine respectively. The results of the quantitative 2-cm segmental analysis showed that daprodustat was primarily localized in the proximal region (0-2 cm) at 0.375-0.463 pg/mg at 1 month post-administration. These drug bands were gradually spread out along the hair shaft at a rate consistent with the reported growth rate of horse mane hair (approximately 2.5 cm/month) over the following 6 months. In addition, to attain deeper insight into the mechanism of drug incorporation into hair, a total of 11 relevant parameters, including the actual PK parameters and simulated physicochemical and biopharmaceutical parameters for three HIF stabilizers (i.e., daprodustat, vadadustat, and IOX4), were investigated after normalization of the z-scores of all these parameters. Multiple regression analysis indicated that the major factors contributing to the incorporation of the three drugs into hair were their maximum plasma concentrations and lipophilicities, strongly suggesting that the three HIF stabilizers permeated from the bloodstream into the hair bulb via passive transfer with concentration gradients. This work is the first reported evidence showing the incorporation of HIF stabilizers into hair via passive transfer. In addition, cross-species comparison of drug incorporations into hair between daprodustat in horse and roxadustat in human was made in order to have a better understanding of the interactive interpretations about the analysis results obtained from different species. The above findings are not only useful and beneficial for the purpose of doping control but also provide a better understanding of the mechanism of drug incorporation into horse hair.
Collapse
Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan; Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan.
| | - Mariko Shibuya
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
| | - Kanichi Kusano
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo 105-0003, Japan
| | - Yu Sone
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo 105-0003, Japan
| | - Takahiro Kamiya
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba 270-1431, Japan
| | - Ai Wakuno
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba 270-1431, Japan
| | - Hideki Ito
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba 270-1431, Japan
| | - Kenji Miyata
- JRA Equestrian Park Utsunomiya Office, 321-4 Tokamicho, Utsunomiya, Tochigi 320-0856, Japan
| | - Masayuki Yamada
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
| |
Collapse
|
5
|
Ishii H, Shibuya M, Kusano K, Sone Y, Kamiya T, Wakuno A, Ito H, Miyata K, Yamada M, Leung GNW. Segmental analysis and long-term monitoring of vadadustat in equine hair for the purpose of doping control. J Anal Toxicol 2023; 47:623-631. [PMID: 37632695 DOI: 10.1093/jat/bkad057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/07/2023] [Accepted: 08/14/2023] [Indexed: 08/28/2023] Open
Abstract
Vadadustat is a newly launched hypoxia-inducible factor stabilizer with anti-anemia and erythropoietic effects; however, its use in horses is expressly forbidden in both racing and equestrian competitions. Following our previous report on the pharmacokinetic study of vadadustat in horse plasma and urine, a long-term longitudinal analysis of vadadustat in horse hair after nasoesophageal administration (3 g/day for 3 days) to three thoroughbred mares is described in this study. Our main objective is to further extend the detection period of vadadustat for the purpose of doping control. Three bunches of mane hair from each horse were collected at 0 (pre), 1, 2, 3 and 6 month(s) post-administration. These hair samples were each cut into 2-cm segments and pulverized after decontamination of hair samples. The analyte in the powdered hair samples was extracted with liquid-liquid extraction followed by further purification by solid-phase extraction with strong anion exchange columns. The amount of vadadustat incorporated into the hair was quantified with a newly developed and validated method using liquid chromatography-high-resolution mass spectrometry. Our results show that vadadustat was confirmed in all post-administration hair samples, but its metabolites were not present. Thus, the detection window for vadadustat could be successfully extended up to 6 months post-administration. Interestingly, the 2-cm segmental analysis revealed that the tip of the drug band in the hair shifted along with the hair shafts in correspondence with the average hair growth rate (∼2.5 cm/month) but gradually diffused more widely from 2 cm at 1 month post-administration to up to 14 cm at 6 months post-administration. However, the loss in the total amount of vadadustat in hair over time was observed to most likely be due to the degradation of vadadustat. These findings will be useful for the control of abuse and/or misuse of vadadustat and the interpretation of positive doping cases.
Collapse
Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
| | - Mariko Shibuya
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
| | - Kanichi Kusano
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo 105-0003, Japan
| | - Yu Sone
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo 105-0003, Japan
| | - Takahiro Kamiya
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba 270-1431, Japan
| | - Ai Wakuno
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba 270-1431, Japan
| | - Hideki Ito
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba 270-1431, Japan
| | - Kenji Miyata
- Equine Veterinary Clinic, JRA Equestrian Park Utsunomiya Office, 321-4 Tokamicho, Utsunomiya, Tochigi 320-0856, Japan
| | - Masayuki Yamada
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
| |
Collapse
|
6
|
Furukawa T, Kodama H, Ishii H, Kojima S, Nakajima T, Gan W, Velayutham T, Majid WA. Towards comprehensive understanding of piezoelectricity and its relaxation in VDF-based ferroelectric polymers. POLYMER 2023; 283:126235. [DOI: 10.1016/j.polymer.2023.126235] [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: 09/02/2023]
|
7
|
Yoshizawa S, Shintaku T, Ishii H, Sakamoto M, Musha Y, Ikegami H. Zoledronic acid for osteoporosis after distal radius fracture surgery: Prospective longitudinal study. J Orthop 2023; 43:109-114. [PMID: 37559884 PMCID: PMC10407814 DOI: 10.1016/j.jor.2023.07.019] [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: 07/15/2023] [Accepted: 07/17/2023] [Indexed: 08/11/2023] Open
Abstract
Background Distal radius fractures (DRFs) are the most frequent first-ever osteoporotic fragility fractures. However, most patients are treated only for fractures and not for osteoporosis. Therefore, we investigated early osteoporosis intervention using zoledronic acid. Methods This prospective study enrolled 30 patients aged 50 years or older who had no history of fragility fractures or osteoporosis treatment and who underwent surgical treatment for DRFs. Patients whose lumbar spine or femur bone mineral density (BMD) values were less than 80% of the young adult mean (YAM) were treated with a 5-mg intravenous infusion of zoledronic acid. Lumbar spine and femur YAM BMD values, TRACP-5b and PINP were statistically evaluated using the paired t-test. The relationship between adverse effects, age, body mass index (BMI), and creatinine clearance (CCr) was statistically examined using Mann-Whitney's U test. The incidence of the bone fusion and secondary fractures within the 60-months postoperative period were assessed. Results The mean lumbar spine and femur YAM BMD values before treatment were 76.1 ± 13.1% and 70.7 ± 8.5%. This indicates osteopenia in both locations. These values differed significantly between the pre-treatment period and each subsequent period. Five patients with a target YAM BMD value over 80% within 60 months after treatment were observed. The TRACP-5b and PINP values differed significantly between the pre-treatment period and each subsequent period. Adverse drug reactions were observed in 12 patients (40%). Age, BMI, and CCr did not show statistically significant differences in the occurrence of adverse effects. Bone fusion was confirmed at a mean of 3.6 months postoperatively. Secondary fractures were observed in 3 patients within 60 months after treatment. Conclusion DRFs occur at a younger age than other fragility fractures, and it is important to intervene aggressively with osteoporosis treatment to prevent secondary fractures. Level of evidence Level V.
Collapse
Affiliation(s)
- Shu Yoshizawa
- Department of Orthopedic Surgery(Ohashi), Toho University Graduate School of Medicine, Tokyo, Japan
| | - Takanori Shintaku
- Department of Orthopedic Surgery(Ohashi), School of Medicine, Toho University, Tokyo, Japan
| | - Hideaki Ishii
- Department of Orthopedic Surgery(Ohashi), School of Medicine, Toho University, Tokyo, Japan
| | - Misato Sakamoto
- Department of Orthopedic Surgery(Ohashi), Toho University Graduate School of Medicine, Tokyo, Japan
| | - Yoshiro Musha
- Department of Orthopedic Surgery(Ohashi), School of Medicine, Toho University, Tokyo, Japan
| | - Hiroyasu Ikegami
- Department of Orthopedic Surgery(Ohashi), School of Medicine, Toho University, Tokyo, Japan
| |
Collapse
|
8
|
Valenta J, Tsujii N, Yamaoka H, Honda F, Hirose Y, Sakurai H, Terada N, Naka T, Nakane T, Koizumi T, Ishii H, Hiraoka N, Mori T. Unusually strong electronic correlation and field-induced ordered phase in YbCo 2. J Phys Condens Matter 2023; 35:285601. [PMID: 37015243 DOI: 10.1088/1361-648x/acca5a] [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] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 04/04/2023] [Indexed: 06/19/2023]
Abstract
We report the first study of electrical resistivity, magnetization, and specific heat on YbCo2. The measurements on a single-phased sample of YbCo2bring no evidence of magnetic ordering down to 0.3 K in a zero magnetic field. The manifestations of low Kondo temperature are observed. The specific heat value divided by temperature,C/T, keeps increasing logarithmically beyond 7 J/mol K2with decreasing temperature down to 0.3 K without no sign of magnetic ordering, suggesting a very large electronic specific heat. Analysis of the magnetic specific heat indicates that the large portion of the low-temperature specific heat is not explained simply by the low Kondo temperature but is due to the strong intersite magnetic correlation in both the 3dand 4felectrons. Temperature-dependent measurements under static magnetic fields up to 7 T are carried out, which show the evolution of field-induced transition above 2 T. The transition temperature increases with increasing field, pointing to a ferromagnetic character. The extrapolation of the transition temperature to zero field suggests that YbCo2is in the very proximity of the quantum critical point. These results indicate that in the unique case of YbCo2, the itinerant electron magnetism of Co 3d-electrons and the Kondo effect within the vicinity of quantum criticality of Yb 4f-local moments can both play a role.
Collapse
Affiliation(s)
- J Valenta
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan
| | - N Tsujii
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan
| | - H Yamaoka
- RIKEN Spring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - F Honda
- Institute for Materials Research, Tohoku University, Ōarai, Ibaraki 311-1313, Japan
- Central Institute of Radioisotope Science and Safety, Kyushu University, Fukuoka 819-0395, Japan
| | - Y Hirose
- Department of Physics, Niigata University, Niigata 950-2181, Japan
| | - H Sakurai
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan
| | - N Terada
- Research Center for Magnetic and Spintronic Materials, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - T Naka
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan
| | - T Nakane
- Research Center for Electronic and Optical Materials, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047, Japan
| | - T Koizumi
- Institute for Materials Research, Tohoku University, Ōarai, Ibaraki 311-1313, Japan
- Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
| | - H Ishii
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - N Hiraoka
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - T Mori
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan
| |
Collapse
|
9
|
Nagahara M, Cai K, Chatterjee D, Chopra N, Hatanaka T, Hori Y, Ishii H, Quevedo DE, Reniers M. Special issue on control technology for networked and distributed robotics (Part II). Adv Robot 2023. [DOI: 10.1080/01691864.2023.2168316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
| | - Kai Cai
- Osaka Metropolitan University, Japan
| | | | | | | | | | | | | | | |
Collapse
|
10
|
Nagahara M, Cai K, Chatterjee D, Chopra N, Hatanaka T, Hori Y, Ishii H, Quevedo DE, Reniers M. Special issue on control technology for networked and distributed robotics. Adv Robot 2023. [DOI: 10.1080/01691864.2022.2156058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
| | - Kai Cai
- Osaka Metropolitan University, Osaka, Japan
| | | | | | | | | | | | | | - Michel Reniers
- Eindhoven University of Technology, Eindhoven, Netherlands
| |
Collapse
|
11
|
Uzawa H, Ishii H, Ishida T, Shida T, Furuyama H, Nishida Y. Factors Associated with Low Inter-Session Reliability of Conditioned Pain Modulation in Older People with or Without Chronic Musculoskeletal Pain. J Pain Res 2023; 16:1039-1053. [PMID: 36992922 PMCID: PMC10041985 DOI: 10.2147/jpr.s391943] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 03/16/2023] [Indexed: 03/31/2023] Open
Abstract
Purpose Conditioned pain modulation (CPM) is a measurement of the descending pain pathways that inhibit or facilitate afferent noxious stimuli. The reliability of CPM in older individuals with or without chronic musculoskeletal pain has not been sufficiently reported. This study aimed to examine the inter-session reliability of CPM in these cohorts and the factors in CPM reliability. Patients and Methods Individuals aged 65 or older were recruited in Narita, Japan. The measurements were performed on separate days 2 weeks apart (sessions 1 and 2). Each participant's hand was immersed in cold water, and we measured pressure pain threshold (PPT) before and after the immersion. The ratio before and after PPT measurements was presented as CPM index. The autonomic activities (heart rate variability, heart rate, and blood pressure) were simultaneously measured. An absolute reliability of CPM index was analyzed by the adjusted two-way analysis of variance (ANOVA) and the Bland Altman plot, and relative reliability was analyzed by intraclass correlation coefficient (ICC). Spearman's rho correlation and the adjusted multivariate regression analysis were utilized for examining the CPM reliability factors. Results Thirty-two participants were divided into two groups: chronic pain (n=19) and non-chronic pain (n=13) groups. The mean difference between session 1 and 2 in CPM index showed a systematic error in the chronic pain group at 17.3 (confidence interval, CI: 15.0 to 19.7), but none in the non-chronic pain group at 3.7 (CI: -0.02 to 7.4). The adjusted two-way ANOVA for CPM index did not identify any differences. ICC was not significant at p=-0.247 in the non-chronic and 0.167 in chronic pain. Multivariate regression analysis revealed total power and low/high frequencies as significant factors for CPM index. Conclusion This study identified low inter-session reliability in older adults with chronic musculoskeletal pain and autonomic nervous system activities as factors in CPM reliability.
Collapse
Affiliation(s)
- Hironobu Uzawa
- Department of Physical Therapy, International University of Health and Welfare, Narita, Chiba, Japan
- Correspondence: Hironobu Uzawa, Department of Physical Therapy, International University of Health and Welfare, 4-3, Kozunomori, Narita, Chiba, 286-8686, Japan, Tel/Fax +81-746-20-7716, Email
| | - Hideaki Ishii
- Department of Physical Therapy, International University of Health and Welfare, Narita, Chiba, Japan
| | - Takeki Ishida
- Department of Physical Therapy, International University of Health and Welfare, Narita, Chiba, Japan
| | - Takashi Shida
- Department of Medical Technology and Science, International University of Health and Welfare, Narita, Chiba, Japan
- Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - Hiroto Furuyama
- Department of Rehabilitation, International University of Health and Welfare Narita Hospital, Narita, Chiba, Japan
| | - Yusuke Nishida
- Department of Physical Therapy, International University of Health and Welfare, Narita, Chiba, Japan
| |
Collapse
|
12
|
Ishii H, Shibuya M, Leung GNW, Yamashita S, Nagata SI, Kushiro A, Sakai S, Toju K, Okada J, Kawasaki K, Kusano K, Kijima-Suda I. Additional studies on nicotine exposure in horses: Accurate quantification and elimination profiles of potential biomarkers in plasma and urine. Rapid Commun Mass Spectrom 2022; 36:e9396. [PMID: 36098053 DOI: 10.1002/rcm.9396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/07/2022] [Accepted: 09/09/2022] [Indexed: 06/15/2023]
Abstract
RATIONALE For the purpose of doping control, this is the first report of accurate quantification of four critical structural isomers of nicotine metabolites (trans-3'-hydroxycotinine, cis-3'-hydroxycotinine, 5'-hydroxycotinine, and N'-hydroxymethylnorcotinine) in equine plasma and urine for the establishment of their elimination profiles. Besides, the pharmacokinetic studies of trans-3'-hydroxycotinine and N'-hydroxymethylnorcotinine in equine plasma and urine are also presented for the first time. METHODS The accurate quantification methods of the aforementioned four structural isomers in horse plasma and urine were successfully developed and validated using the solid-phase extractions followed by liquid chromatography/tandem mass spectrometry analysis. Baseline chromatographic separation was achieved to completely differentiate these isomers, which shared the same selected reaction monitoring transition. Such methods were applied to post-administration samples obtained from the nicotine and tobacco leaf administration studies for the establishment of pharmacokinetic profiles. RESULTS N'-Hydroxymethylnorcotinine could be quantified for the longest period, ranging from 48 to 72 h in plasma and 96 h in urine after a single administration of 250 mg of nicotine and an equivalent amount of nicotine in tobacco leaves. In terms of detection, both N'-hydroxymethylnorcotinine and trans-3'-hydroxycotinine could be detected up to the last sample collection time point (96 h), indicating that they are the most appropriate biomarkers for nicotine exposure. CONCLUSIONS N'-Hydroxymethylnorcotinine and trans-3'-hydroxycotinine were detected longest in plasma and urine samples after both nicotine and tobacco leaf administrations, and N'-hydroxymethylnorcotinine was deemed most appropriate as a monitoring target due to its relatively higher abundance and slower elimination rate. These two biomarkers could also be used to differentiate sample contamination by tobacco products and genuine nicotine exposure to horse regardless of intentionality.
Collapse
Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Tochigi, Japan
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Mariko Shibuya
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Tochigi, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Tochigi, Japan
| | - Shozo Yamashita
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Tochigi, Japan
| | - Shun-Ichi Nagata
- Genetic Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Tochigi, Japan
| | - Asuka Kushiro
- Equine Research Institute, Research Planning & Coordination Division, Japan Racing Association, Shimotsuke, Tochigi, Japan
| | - Satoshi Sakai
- Race Horse Hospital, Miho Training Center, Japan Racing Association, Inashiki-gun, Ibaraki, Japan
| | - Kota Toju
- Race Horse Hospital, Miho Training Center, Japan Racing Association, Inashiki-gun, Ibaraki, Japan
| | - Jun Okada
- Veterinarian Section, Equine Department, Japan Racing Association, Minato-ku, Tokyo, Japan
| | - Kazumi Kawasaki
- Veterinarian Section, Equine Department, Japan Racing Association, Minato-ku, Tokyo, Japan
| | - Kanichi Kusano
- Race Horse Hospital, Ritto Training Center, Japan Racing Association, Ritto, Shiga, Japan
| | - Isao Kijima-Suda
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Tochigi, Japan
| |
Collapse
|
13
|
Shintaku T, Inui S, Ikegami H, Yoshizawa S, Ishii H, Sakamoto M, Musha Y, Okuno Y, Kuji I. Alteration of chronic inflammatory status by transarterial embolization in frozen shoulder evaluated by 18-fluorine-fluoro-2-deoxyglucose positron-emission tomography/computed tomography. J Shoulder Elbow Surg 2022; 32:e227-e234. [PMID: 36435485 DOI: 10.1016/j.jse.2022.10.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 09/30/2022] [Accepted: 10/20/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND Frozen shoulder (FS) is speculated to have an inflammatory etiology. On angiography, abnormal angiogenesis is observed around the affected shoulder, suggesting a possible source of inflammation and pain. The effectiveness and safety of transarterial embolization (TAE) targeting abnormally proliferating blood vessels have been reported. This study investigated changes in chronic inflammatory and hypoxic status before and after TAE in FS by 19-fluorine-fluoro-2-deoxyglucose (FDG) positron-emission tomography/computed tomography as a possible mechanism of the therapeutic response to TAE. METHODS Fifteen patients with unilateral FS, persistent for more than 6 months, who were refractory to conservative treatments, underwent TAE using the temporary embolic agent imipenem/cilastatin. Patients underwent positron-emission tomography/computed tomography with FDG (as a biomarker of inflammation) before and 8 weeks after TAE. Regional uptake was evaluated by the maximum standardized uptake value. The lesion-side-to-(contralateral-) normal-side uptake ratio was also calculated. Pain and functional scales, range-of-motion, and laboratory tests, including white blood cell, C-reactive protein, interleukin 6, vascular endothelial growth factor, and tumor necrosis factor α were evaluated. RESULTS On FDG-PET, the average maximum standardized uptake value of the lesion-side was significantly greater than that of the normal-side (maximum standardized uptake value before TAE: 3.11 ± 1.25 vs 1.95 ± 1.15, P = .0001; 8-weeks post-TAE: 2.36 ± 0.74 vs 1.78 ± 0.69, P = .0002). The mean lesion-side-to-(contralateral-) normal-side uptake ratios before TAE (1.71 ± 0.60) decreased after TAE (1.37 ± 0.29, P = .011). The decrease of FDG uptake (-21.1 ± 12.2%) showed a significant correlation with the change in the pain scale score (r = -0.56, P = .039) and extension score (r = -0.59, P = .026). CONCLUSION Chronic inflammation in FS, as demonstrated by FDG uptake, was decreased after TAE. Thus, chronic inflammation is likely to be an underlying mechanism that should be targeted for symptomatic improvement of frozen shoulder.
Collapse
Affiliation(s)
- Takanori Shintaku
- Department of Orthopaedics Surgery, Toho University Ohashi Medical Center, Meguro-ku, Tokyo, Japan; Musculoskeletal Intervention Center, Edogawa Hospital, Edogawa-ku, Tokyo, Japan; Department of Orthopaedic Surgery, Toho University Graduate School of Medicine, Ota-ku, Tokyo, Japan
| | - Shohei Inui
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Hiroyasu Ikegami
- Department of Orthopaedics Surgery, Toho University Ohashi Medical Center, Meguro-ku, Tokyo, Japan
| | - Shu Yoshizawa
- Department of Orthopaedics Surgery, Toho University Ohashi Medical Center, Meguro-ku, Tokyo, Japan; Department of Orthopaedic Surgery, Toho University Graduate School of Medicine, Ota-ku, Tokyo, Japan
| | - Hideaki Ishii
- Department of Orthopaedics Surgery, Toho University Ohashi Medical Center, Meguro-ku, Tokyo, Japan
| | - Misato Sakamoto
- Department of Orthopaedics Surgery, Toho University Ohashi Medical Center, Meguro-ku, Tokyo, Japan; Department of Orthopaedic Surgery, Toho University Graduate School of Medicine, Ota-ku, Tokyo, Japan
| | - Yoshiro Musha
- Department of Orthopaedics Surgery, Toho University Ohashi Medical Center, Meguro-ku, Tokyo, Japan
| | - Yuji Okuno
- Musculoskeletal Intervention Center, Edogawa Hospital, Edogawa-ku, Tokyo, Japan; Musculoskeletal Intervention Center, Okuno Clinic, Minato-ku, Tokyo, Japan; Department of Radiology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
| | - Ichiei Kuji
- Department of Nuclear Medicine, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
| |
Collapse
|
14
|
Semba S, Trapasso F, Fabbri M, McCorkell KA, Volinia S, Druck T, Iliopoulos D, Pekarsky Y, Ishii H, Garrison PN, Barnes LD, Croce CM, Huebner K. Correction to: Fhit modulation of the Akt-survivin pathway in lung cancer cells: Fhit-tyrosine 114 (Y114) is essential. Oncogene 2022; 41:5317-5318. [PMID: 36266332 DOI: 10.1038/s41388-022-02472-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- S Semba
- Comprehensive Cancer Center and Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH, USA
| | - F Trapasso
- Comprehensive Cancer Center and Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH, USA.,Department of Experimental and Clinical Medicine, Medical School of Catanzaro, 'Magna Graecia' University of Catanzaro, Catanzaro, Italy
| | - M Fabbri
- Comprehensive Cancer Center and Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH, USA
| | - K A McCorkell
- Comprehensive Cancer Center and Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH, USA
| | - S Volinia
- Comprehensive Cancer Center and Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH, USA.,Telethon Facility-Data Mining for Analysis of DNA Microarrays, Università degli Studi, Ferrara, Italy
| | - T Druck
- Comprehensive Cancer Center and Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH, USA
| | - D Iliopoulos
- Comprehensive Cancer Center and Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH, USA
| | - Y Pekarsky
- Comprehensive Cancer Center and Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH, USA
| | - H Ishii
- Division of Stem Cell Regulation/Molecular Hematopoiesis, Center for Molecular Medicine, Jichi Medical School, Minami-Kawachi, Japan
| | - P N Garrison
- Department of Biochemistry, University of Texas Health Science Center, San Antonio, TX, USA
| | - L D Barnes
- Department of Biochemistry, University of Texas Health Science Center, San Antonio, TX, USA
| | - C M Croce
- Comprehensive Cancer Center and Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH, USA
| | - K Huebner
- Comprehensive Cancer Center and Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH, USA.
| |
Collapse
|
15
|
Ando H, Yamaji K, Kohsaka S, Ishii H, Sakakura K, Goto R, Nakano Y, Takashima H, Ikari Y, Amano T. Cardiopulmonary arrest and in-hospital outcomes in young patients with acute myocardial infarction: insights from the Japanese nationwide registry. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1307] [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: 11/12/2022] Open
Abstract
Abstract
Background
Cardiopulmonary arrest (CPA) is the most serious presentation of acute myocardial infarction (AMI). However, the frequency and prognostic impact of CPA in young patients with AMI have been still unclear.
Objectives
This study aimed to characterize AMI in young patients who underwent primary percutaneous coronary intervention using large-scale nationwide all-comer registry data in Japan (J-PCI registry).
Methods
Data on risk factor profiles, clinical features, post-procedural complications, and in-hospital outcomes were reviewed within the J-PCI registry between 2014 and 2018.
Results
Among 213,297 patients with AMI, 23,985 (11.2%) were young (age, 20–49 years). Compared with the older group (age, 50–79 years; n=189,312), the young group included a higher number of men, smokers, patients with dyslipidemia, and patients with single-vessel disease, and a lower number of patients with hypertension and diabetes. Despite favorable clinical profiles, younger age was associated with a higher rate of presentation with CPA (Figure 1). Further, concomitant CPA was strongly associated with in-hospital mortality in the young group (Table 1).
Conclusions
Young patients with AMI presented a higher risk of CPA than older patients, which was strongly associated with in-hospital mortality.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): JSPS KAKENHI
Collapse
Affiliation(s)
- H Ando
- Aichi Medical Univeristy , Nagakute , Japan
| | - K Yamaji
- Kyoto University Graduate School of Medicine , Kyoto , Japan
| | - S Kohsaka
- Keio University School of Medicine , Tokyo , Japan
| | - H Ishii
- Gunma University Graduate School of Medicine , Gunma , Japan
| | - K Sakakura
- Jichi Medical University Saitama Medical Center , Saitama , Japan
| | - R Goto
- Aichi Medical Univeristy , Nagakute , Japan
| | - Y Nakano
- Aichi Medical Univeristy , Nagakute , Japan
| | | | - Y Ikari
- Tokai University Hospital , Isehara , Japan
| | - T Amano
- Aichi Medical Univeristy , Nagakute , Japan
| |
Collapse
|
16
|
Kaneko Y, Fukuda K, Irie T, Shimizu H, Tamura S, Kobari T, Hasegawa H, Nakajima T, Ishii H. Electrophysiological characteristics and catheter ablation of atypical fast-slow atrioventricular nodal reentrant tachycardia using an inferolateral left atrial slow pathway. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.643] [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
Background
Understandings of subtypes of atypical atrioventricular nodal reentrant tachycardia (AVNRT) using variants of slow pathway (SP) are still growing. Inferolateral (inf-lat-) left atrial (LA) SP is a rare variant extending into an inf-lat-LA along the mitral annulus (MA).
Purpose
To characterize an unknown subtype of atypical fast-slow (F/S-) AVNRT using an inf-lat-LA-SP as a retrograde limb (inf-lat-LA-F/S-AVNRT).
Methods
This Japanese multicenter retrospective study enrolled 4 patients of inf-lat-LA-F/S-AVNRT that was characterized by the earliest site of atrial activation during tachycardia (EAA) between 3 and 6 o'clock along the MA. The diagnosis was made by an exclusion of AV reentrant tachycardia (AVRT) and atrial tachycardia (AT) according to the standard criteria and was confirmed by successful elimination of tachycardia and the inf-lat-LA-SP.
Results
Surface ECG during tachycardia revealed long RP appearance except one who had short RP due to a short conduction time across the inf-lat-LA-SP. During tachycardia, far-field LA activation preceding near-field activation of coronary sinus (CS) musculature was visible in the CS recording in 2. Retrograde conduction via the inf-lat-LA-SP with a decremental delay was consistently reproducible with ventricular stimulation in 2, 1 of whom had double atrial response, while it was always masked by the presence of a retrograde conduction via the fast pathway in 1 and a retrograde block at the lower common pathway in 1. An injection of a small dose of ATP transiently interrupted a retrograde conduction over the inf-lat-LA-SP, suggesting its ATP-sensitivity. Exclusion of AVRT was made by no resetting of tachycardia with left ventricular extrastimulus in 2 and VA dissociation during overdrive pacing of tachycardia in remaining 2. Exclusion of AT was made by V-A-V response after ventricular entrainment in 1 and termination without atrial capture by ventricular pacing in 2. Ablation of the right-sided SP was unsuccessful to eliminate the tachycardia, but ablation at or near the EAA by transseptal approach was successful to cure the tachycardia, associated with an elimination of a retrograde conduction over the inf-lat-LA-SP following a development of an accelerated junction rhythm in all. Low-frequency potentials preceding local atrial activation, consistent with a retrograde activation via the inf-lat-LA-SP were detected along the MA medial to the EAA in 1.
Conclusions
Differential diagnosis of tachycardia with the EAA in the inf-lat-LA and especially long RP appearance should include inf-lat-LA-F/S-AVNRT. Presumed arrhythmogenic substrate of the inf-lat-LA-SP seemed to be consistent with the remnant of embryogenic AV ring tissue in the electropharmacological and locational characteristics. Successful elimination of this AVNRT can be obtained by ablation of the inf-lat-LA-SP, but not of the right-sided SP.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- Y Kaneko
- Gunma University Graduate School of Medicine, Maebashi , Gunma , Japan
| | - K Fukuda
- International University of Health and Welfare Hospital, Department of Cardiology , Nasushiobara , Japan
| | - T Irie
- Saitama Sekishinkai Hospita, Department of Cardiology , Sayama , Japan
| | - H Shimizu
- Saiseikai Niigata Hospital, Department of Cardiology , Niigata , Japan
| | - S Tamura
- Gunma University Graduate School of Medicine, Maebashi , Gunma , Japan
| | - T Kobari
- Gunma University Graduate School of Medicine, Maebashi , Gunma , Japan
| | - H Hasegawa
- Gunma University Graduate School of Medicine, Maebashi , Gunma , Japan
| | - T Nakajima
- Gunma University Graduate School of Medicine, Maebashi , Gunma , Japan
| | - H Ishii
- Gunma University Graduate School of Medicine, Maebashi , Gunma , Japan
| |
Collapse
|
17
|
Tobe A, Tanaka A, Furusawa K, Shirai Y, Funakubo H, Otsuka S, Kubota Y, Kunieda T, Yoshioka N, Sato S, Kudo N, Ishii H, Murohara T. Heterogeneous carotid plaque is associated with cardiovascular events after percutaneous coronary intervention. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1140] [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: 11/13/2022] Open
Abstract
Abstract
Background
The relationship between carotid artery ultrasound findings and clinical outcomes in percutaneous coronary intervention (PCI) patients has not been fully elucidated.
Purpose
To investigate the relationship between carotid artery ultrasound findings and cardiovascular risks in PCI patients.
Methods
This was a single-center retrospective study investigating 691 patients who underwent PCI and carotid ultrasound testing. Maximum carotid intima-media thickness (CIMT) was defined as the greatest CIMT at the maximally thick point among the common carotid artery, carotid bulb, and internal carotid artery. A carotid plaque was defined as vessel wall thickening with a CIMT ≥1.5 mm. The characteristics of carotid plaque (heterogeneity, calcification, or irregular/ulcerated surface) were evaluated visually. Patients were divided into those with and without heterogeneous carotid plaque (maximum CIMT ≥1.5 mm and heterogeneous texture). The endpoint was the incidence of a major adverse cardiovascular event (MACE) defined as a composite of cardiovascular death, myocardial infarction, and ischemic stroke.
Results
Among 691 patients, 312 were categorized as having a heterogeneous plaque. Patients with heterogeneous plaques were at a higher risk of MACE than those without (p=0.002). A heterogeneous plaque was independently associated with MACE after adjusting for covariates (hazard ratio [HR], 1.80; 95% confidence interval [CI], 1.06–3.04; p=0.03). Calcified or irregular/ulcerated plaques were correlated with a higher incidence of MACE but both were not independently associated with MACE (HR, 1.37; 95% CI, 0.70–2.67, p=0.36 and HR, 1.13; 95% CI, 0.66–1.93; p=0.66, respectively).
Conclusions
The presence of a heterogeneous carotid plaque in patients who underwent PCI predicted future cardiovascular events. These patients may require more aggressive medical therapy and careful follow-up.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- A Tobe
- Nagoya University Hospital, Cardiology , Aichi , Japan
| | - A Tanaka
- Nagoya University Hospital, Cardiology , Aichi , Japan
| | - K Furusawa
- Nagoya University Hospital, Cardiology , Aichi , Japan
| | - Y Shirai
- Nagoya University Hospital, Cardiology , Aichi , Japan
| | - H Funakubo
- Nagoya University Hospital, Cardiology , Aichi , Japan
| | - S Otsuka
- Nagoya University Hospital, Cardiology , Aichi , Japan
| | - Y Kubota
- Nagoya University Hospital, Cardiology , Aichi , Japan
| | - T Kunieda
- Nagoya University Hospital, Cardiology , Aichi , Japan
| | - N Yoshioka
- Nagoya University Hospital, Cardiology , Aichi , Japan
| | - S Sato
- Nagoya University Hospital, Cardiology , Aichi , Japan
| | - N Kudo
- Handa City Hospital, Cardiology , Handa , Japan
| | - H Ishii
- Gunma University Graduate School of Medicine, Cardiology , Maebashi , Japan
| | - T Murohara
- Nagoya University Hospital, Cardiology , Aichi , Japan
| |
Collapse
|
18
|
Takama N, Kato T, Shiina T, Fujii T, Amanai S, Ishibashi Y, Ishii H. Real-world data in the management of hypertension for patients with sleep disordered breathing after initiating continuous positive airway pressure treatment. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2225] [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: 11/13/2022] Open
Abstract
Abstract
Introduction
There are many reports that patients with cardiovascular diseases including hypertension have already suffered from sleep disordered breathing (SDB). Furthermore, Continuous Positive Airway Pressure (CPAP) is effective for hypertension for improvement of sympathetic nervous activity reason. Previously, we reported that SDB is just as, if not more, important as common classical risk factors (hypertension, dyslipidemia, diabetes mellitus) for patients with cardiovascular diseases (Figure 1).
Purpose
Our aim in this study is to estimate the real-world data in the management of hypertension for patients with SDB after initiating CPAP treatment.
Methods
All patients were conducted full night polysomnography. One-hundred ninety-five patients showed obstructive SDB {apnea hypopnea index (AHI) >20/hour}, and CPAP treatment were initiated. According to Japanese society of hypertension guidelines for the managements of hypertension 2019 (JSH2019), we estimated the blood pressure and presence of blood pressure-lowering agents to assess effectiveness of CPAP treatment after six-month follow up.
Results
The study group consisted of 195 SDB patients (166 males, 29 females). The mean age was 59±7 years. Figure 2 showed the blood pressure and presence of blood pressure-lowering agents after initiating CPAP treatment. Group A which showed systolic blood pressure (SBP) <130 mmHg without intake of blood pressure-lowering agents was 20.9%. Group B which showed SBP <130 mmHg with intake of blood pressure-lowering agents was 9.6%. Group C showed SBP≥130 mmHg without intake of blood pressure-lowering agents was 30.5%. Group D showed SBP≥130 mmHg with intake of blood pressure-lowering agents was 39.0%.
Conclusion
We could estimate that there were high prevalence of hypertension for patients with SDB after initiating CPAP treatment. It is true that CPAP treatment have a beneficial effect on hypertension, but 70% patients (Group C and D) still remain inadequately treated. We need the strict blood pressure follow up for patient with SDB before and after initiating CPAP treatment.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- N Takama
- Gunma University School of Medicine, Department of Cardiovascular Medicine , Maebashi , Japan
| | - T Kato
- Gunma University School of Medicine, Department of Cardiovascular Medicine , Maebashi , Japan
| | - T Shiina
- Gunma University School of Medicine, Department of Cardiovascular Medicine , Maebashi , Japan
| | - T Fujii
- Gunma University School of Medicine, Department of Cardiovascular Medicine , Maebashi , Japan
| | - S Amanai
- Gunma University School of Medicine, Department of Cardiovascular Medicine , Maebashi , Japan
| | - Y Ishibashi
- Gunma University School of Medicine, Department of Cardiovascular Medicine , Maebashi , Japan
| | - H Ishii
- Gunma University School of Medicine, Department of Cardiovascular Medicine , Maebashi , Japan
| |
Collapse
|
19
|
Tobe A, Tanaka A, Tokuda Y, Shirai Y, Yamamoto T, Tokoro M, Furusawa K, Ishii H, Usui A, Murohara T. Albuminuria predicts worsening renal function at 1 month after transcatheter aortic valve implantation. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1610] [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
Background
Worsening renal function (WRF) at short term after transcatheter aortic valve replacement (TAVR) is reportedly associated with subsequent poor clinical outcomes. We previously reported preoperative albuminuria predicted mid-term WRF after TAVR. However, the impact of albuminuria on short-term WRF after TAVR is unknown.
Methods
Overall, 206 patients who underwent TAVR for severe aortic stenosis were investigated retrospectively. Patients were divided into two groups according to the preoperative urinary albumin-to-creatinine ratio (ACR): high (ACR ≥30 mg/g) and low (ACR <30 mg/g). The incidence of 1-month WRF, defined as a decrease in estimated glomerular filtration rate (eGFR) ≥10% from baseline after TAVR, was investigated.
Results
More than half of the examined patients (n=106/206 [51.5%]) had a high ACR. Patients with a high ACR had significantly lower eGFR at baseline than those with a low ACR (49.3 [32.5–57.8] vs. 51.4 [37.7–65.8] mL/min/1.73 m2, p=0.03). Patients with a high ACR more frequently had acute kidney injury (8.5% vs. 1.0%, p=0.01) and 1-month WRF than those with a low ACR (29.2% vs. 12.0%, p=0.002). Multivariate analysis showed a high ACR was independently associated with 1-month WRF (odds ratio, 3.72; 95% confidence interval, 1.72–8.08; p<0.001). Meanwhile, eGFR <60 mL/min/1.73 m2 was not an independent predictor of 1-month WRF (odds ratio, 0.48; 95% confidence interval, 0.22–1.04, p=0.06).
Conclusions
Patients with preoperative albuminuria (ACR ≥30 mg/g) more frequently developed AKI and 1-month WRF after TAVR. Albuminuria was independently associated with 1-month WRF, suggesting albuminuria to be a universal predictor of deterioration of renal function at various time points.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- A Tobe
- Nagoya University Hospital, Cardiology , Aichi , Japan
| | - A Tanaka
- Nagoya University Hospital, Cardiology , Aichi , Japan
| | - Y Tokuda
- Nagoya University Hospital, Cardiac Surgery , Aichi , Japan
| | - Y Shirai
- Nagoya University Hospital, Cardiology , Aichi , Japan
| | - T Yamamoto
- Nagoya University Hospital, Cardiac Surgery , Aichi , Japan
| | - M Tokoro
- Nagoya University Hospital, Cardiac Surgery , Aichi , Japan
| | - K Furusawa
- Nagoya University Hospital, Cardiology , Aichi , Japan
| | - H Ishii
- Gunma University Graduate School of Medicine, Cardiology , Maebashi , Japan
| | - A Usui
- Nagoya University Hospital, Cardiac Surgery , Aichi , Japan
| | - T Murohara
- Nagoya University Hospital, Cardiology , Aichi , Japan
| |
Collapse
|
20
|
Ishii H, Shibuya M, Kusano K, Sone Y, Kamiya T, Wakuno A, Ito H, Miyata K, Sato F, Kuroda T, Yamada M, Leung GNW. Generic approach for the discovery of drug metabolites in horses based on data-dependent acquisition by liquid chromatography high-resolution mass spectrometry and its applications to pharmacokinetic study of daprodustat. Anal Bioanal Chem 2022; 414:8125-8142. [PMID: 36181513 DOI: 10.1007/s00216-022-04347-2] [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: 07/19/2022] [Revised: 09/14/2022] [Accepted: 09/20/2022] [Indexed: 11/27/2022]
Abstract
In drug metabolism studies in horses, non-targeted analysis by means of liquid chromatography coupled with high-resolution mass spectrometry with data-dependent acquisition (DDA) has recently become increasingly popular for rapid identification of potential biomarkers in post-administration biological samples. However, the most commonly encountered problem is the presence of highly abundant interfering components that co-elute with the target substances, especially if the concentrations of these substances are relatively low. In this study, we evaluated the possibility of expanding DDA coverage for the identification of drug metabolites by applying intelligently generated exclusion lists (ELs) consisting of a set of chemical backgrounds and endogenous substances. Daprodustat was used as a model compound because of its relatively lower administration dose (100 mg) compared to other hypoxia-inducible factor stabilizers and the high demand in the detection sensitivity of its metabolites at the anticipated lower concentrations. It was found that the entire DDA process could efficiently identify both major and minor metabolites (flagged beyond the pre-set DDA threshold) in a single run after applying the ELs to exclude 67.7-99.0% of the interfering peaks, resulting in a much higher chance of triggering DDA to cover the analytes of interest. This approach successfully identified 21 metabolites of daprodustat and then established the metabolic pathway. It was concluded that the use of this generic intelligent "DDA + EL" approach for non-targeted analysis is a powerful tool for the discovery of unknown metabolites, even in complex plasma and urine matrices in the context of doping control.
Collapse
Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan.
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
| | - Mariko Shibuya
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Kanichi Kusano
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo, 105-0003, Japan
| | - Yu Sone
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo, 105-0003, Japan
| | - Takahiro Kamiya
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba, 270-1431, Japan
| | - Ai Wakuno
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba, 270-1431, Japan
| | - Hideki Ito
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba, 270-1431, Japan
| | - Kenji Miyata
- JRA Equestrian Park Utsunomiya Office, 321-4 Tokamicho, Utsunomiya, Tochigi, 320-0856, Japan
| | - Fumio Sato
- Clinical Veterinary Medicine Division, Equine Research Institute, Japan Racing Association, 1400-4, Shiba, Shimotsuke, Tochigi, 329-0412, Japan
| | - Taisuke Kuroda
- Clinical Veterinary Medicine Division, Equine Research Institute, Japan Racing Association, 1400-4, Shiba, Shimotsuke, Tochigi, 329-0412, Japan
| | - Masayuki Yamada
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| |
Collapse
|
21
|
Ishii H, Shibuya M, Kusano K, Sone Y, Kamiya T, Wakuno A, Ito H, Miyata K, Sato F, Kuroda T, Yamada M, Leung GNW. Pharmacokinetic Study of Vadadustat and High-Resolution Mass Spectrometric Characterization of its Novel Metabolites in Equines for the Purpose of Doping Control. Curr Drug Metab 2022; 23:850-865. [PMID: 36017833 DOI: 10.2174/1389200223666220825093945] [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] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/08/2022] [Accepted: 06/17/2022] [Indexed: 01/05/2023]
Abstract
BACKGROUND Vadadustat, a hypoxia-inducible factor prolyl hydroxylase (HIF-PHD) inhibitor, is a substance which carries a lifetime ban in both horse racing and equestrian competition. A comprehensive metabolic study of vadadustat in horses has not been previously reported. OBJECTIVE Metabolism and elimination profiles of vadadustat in equine plasma and urine were studied for the purpose of doping control. METHODS A nasoesophageal administration of vadadustat (3 g/day for 3 days) was conducted on three thoroughbred mares. Potential metabolites were comprehensively detected by differential analysis of full-scan mass spectral data obtained from both in vitro studies with liver homogenates and post-administration samples using liquid chromatography high-resolution mass spectrometry. The identities of metabolites were further substantiated by product ion scans. Quantification methods were developed and validated for the establishment of the excretion profiles of the total vadadustat (free and conjugates) in plasma and urine. RESULTS A total of 23 in vivo and 14 in vitro metabolites (12 in common) were identified after comprehensive analysis. We found that vadadustat was mainly excreted into urine as the parent drug together with some minor conjugated metabolites. The elimination profiles of total vadadustat in post-administration plasma and urine were successfully established by using quantification methods equipped with alkaline hydrolysis for cleavage of conjugates such as methylated vadadustat, vadadustat glucuronide, and vadadustat glucoside. CONCLUSION Based on our study, for effective control of the misuse or abuse of vadadustat in horses, total vadadustat could successfully be detected for up to two weeks after administration in plasma and urine.
Collapse
Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, Zip 320-0851, Japan.,Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Zip 980-8574, Japan
| | - Mariko Shibuya
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, Zip 320-0851, Japan
| | - Kanichi Kusano
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo, Zip 105-0003, Japan
| | - Yu Sone
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo, Zip 105-0003, Japan
| | - Takahiro Kamiya
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba, Zip 270-1431, Japan
| | - Ai Wakuno
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba, Zip 270-1431, Japan
| | - Hideki Ito
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, 835-1 Ne, Shiroi, Chiba, Zip 270-1431, Japan
| | - Kenji Miyata
- JRA Equestrian Park Utsunomiya Office, 321-4 Tokamicho, Utsunomiya, Tochigi, Zip 320-0856, Japan
| | - Fumio Sato
- Clinical Veterinary Medicine Division, Equine Research Institute, Japan Racing Association, 1400-4, Shiba, Shimotsuke, Tochigi, Zip 329-0412, Japan
| | - Taisuke Kuroda
- Clinical Veterinary Medicine Division, Equine Research Institute, Japan Racing Association, 1400-4, Shiba, Shimotsuke, Tochigi, Zip 329-0412, Japan
| | - Masayuki Yamada
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, Zip 320-0851, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, Zip 320-0851, Japan
| |
Collapse
|
22
|
Kurita S, Doi T, Tsutsumimoto K, Nakakubo S, Ishii H, Shimada H. Development of a Questionnaire to Evaluate Older Adults' Total Sedentary Time and Sedentary Time With Cognitive Activity. J Geriatr Psychiatry Neurol 2022; 35:392-399. [PMID: 33840291 PMCID: PMC9003769 DOI: 10.1177/08919887211006468] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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] [Indexed: 11/17/2022]
Abstract
This study aimed to develop a questionnaire for evaluating total sedentary time (ST) and ST with cognitive activity, and to examine the association between ST and cognitive function among Japanese older adults. The questionnaire to evaluate ST comprised 12 items regarding behavior in specific settings, including 8 items on ST with cognitive activity, in a usual week. Older adults aged ≥75 years who participated in a health check-up assessing cognitive function completed the developed questionnaire and subsequently wore an accelerometer and recorded a diary of ST with cognitive activity for a week as validity measures. Cognitive function was assessed with neuropsychological tests covering 4 domains: memory, attention, executive function, and processing speed. Fifty-two participants were included in the validity analysis. Spearman's correlation coefficient indicated fair-to-good agreement between the questionnaire-measured and the diary-measured time for ST with cognitive activity (r = 0.59, p < 0.001), but this was not the case for total ST. Bland-Altman plots showed that the questionnaire-measured total ST contained proportional bias (r = 0.51, p < 0.001). Multiple regression analysis (n = 49) showed longer questionnaire-measured ST with cognitive activity was significantly associated with better neuropsychological test scores (attention: β = -0.38, p = 0.025; executive function: β = -0.46, p = 0.003; and processing speed: β = 0.31, p = 0.041), while total ST was not associated with better cognitive performance. The developed questionnaire showed acceptable validity to measure ST with cognitive activity, which was found to be protectively associated with cognitive function.
Collapse
Affiliation(s)
- Satoshi Kurita
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Japan,Satoshi Kurita, Section for Health Promotion, Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka-cho, Obu City, Aichi Prefecture, 474-8511, Japan.
| | - Takehiko Doi
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Japan
| | - Kota Tsutsumimoto
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Japan
| | - Sho Nakakubo
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Japan
| | - Hideaki Ishii
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Japan
| | - Hiroyuki Shimada
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Japan
| |
Collapse
|
23
|
Doi T, Tsutsumimoto K, Ishii H, Nakakubo S, Kurita S, Kiuchi Y, Nishimoto K, Shimada H. Impact of social frailty on the association between driving status and disability in older adults. Arch Gerontol Geriatr 2022; 99:104597. [DOI: 10.1016/j.archger.2021.104597] [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: 10/01/2021] [Revised: 11/18/2021] [Accepted: 11/26/2021] [Indexed: 11/02/2022]
|
24
|
Ishii H, Leung GNW, Yamashita S, Nagata SI, Kushiro A, Sakai S, Toju K, Okada J, Kawasaki K, Kusano K, Kijima-Suda I. Identification of potential biomarkers in urine and plasma after consumption of tobacco product in horses. Drug Test Anal 2022; 14:902-914. [PMID: 35195357 DOI: 10.1002/dta.3242] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 01/12/2022] [Revised: 02/07/2022] [Accepted: 02/15/2022] [Indexed: 11/06/2022]
Abstract
The use of nicotine stimulants in horses is generally banned in horse racing and equestrian sports-accidental consumption of tobacco products is one of the possible causes of nicotine exposure in horses. The authors recently reported a comprehensive metabolic study of nicotine in equines, differentiating between nicotine exposure and sample contamination by means of a nicotine biomarker trans-3'-hydroxycotinine. To identify potential biomarkers for the differentiation of genuine nicotine administration and consumption of tobacco products, tobacco leaves (equivalent to 250 mg of nicotine) were nasoesophageally administered to three thoroughbred mares. Quantification methods of anatabine in plasma and urine were newly developed and validated and successfully applied to post-administration samples. Previously reported simultaneous quantification methods of eight target analytes including nicotine and its metabolites in plasma and urine were also applied to the samples. The results demonstrate that both trans-3'-hydroxycotinine and anatabine could be used as potential biomarkers in equine urine and plasma to indicate recent exposure to tobacco products in horses. As well, trans-3'-hydroxycotinine had the longest half-life as a detectable metabolite in urine and plasma. To our knowledge, this is the first report of a comprehensive study of tobacco product detection in horses.
Collapse
Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan.,Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan
| | - Shozo Yamashita
- Drug Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan
| | - Shun-Ichi Nagata
- Genetic Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan
| | - Asuka Kushiro
- Equine Research Institute, Research Planning & Coordination Division, JRA, Tochigi, Japan
| | - Satoshi Sakai
- Race Horse Hospital, Miho Training Center, JRA, Ibaraki, Japan
| | - Kota Toju
- Race Horse Hospital, Miho Training Center, JRA, Ibaraki, Japan
| | - Jun Okada
- Veterinarian Section, Equine Department, JRA, Tokyo, Japan
| | | | - Kanichi Kusano
- Race Horse Hospital, Ritto Training Center, JRA, Ritto, Shiga, Japan
| | - Isao Kijima-Suda
- Drug Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan
| |
Collapse
|
25
|
Ishii H, Shibuya M, So YM, Wong JKY, Ho ENM, Kusano K, Sone Y, Kamiya T, Wakuno A, Ito H, Miyata K, Yamada M, Leung GNW. Long-term monitoring of IOX4 in horse hair and its longitudinal distribution with segmental analysis using liquid chromatography/electrospray ionization Q Exactive high-resolution mass spectrometry for the purpose of doping control. Drug Test Anal 2022; 14:1244-1254. [PMID: 35195358 DOI: 10.1002/dta.3247] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 11/25/2021] [Revised: 02/17/2022] [Accepted: 02/21/2022] [Indexed: 11/03/2022]
Abstract
IOX4, a hypoxia-inducible factor stabilizer, is classified as a banned substance for horses in both horse racing and equestrian sports. We recently reported the pharmacokinetic profiles of IOX4 in horse plasma and urine and also identified potential monitoring targets for the doping control purpose. In this study, a long-term longitudinal analysis of IOX4 in horse hair after a nasoesophageal administration of IOX4 (500 mg/day for three days) to three thoroughbred mares is presented for the first time for controlling the abuse/misuse of IOX4. Six bunches of mane hair were collected at 0 (pre), 1, 2, 3, and 6 month(s) post-administration. Our results showed that the presence of IOX4 was identified in all post-administration horse hair samples but no metabolite could be detected. The detection window for IOX4 could achieve up to 6-month post-administration (last sampling point) by monitoring IOX4 in hair. In order to evaluate the longitudinal distribution of IOX4 over six months, a validated quantification method of IOX4 in hair was developed for the analysis of the post-administration samples. Segmental analysis of 2-cm cut hair across the entire length of post-administration hair showed that IOX4 could be quantified up to the level of 1.84 pg/mg. In addition, it was found that the movement of the incorporated IOX4 band in the hair shaft over six months varied among the three horses due to individual variation and a significant diffusion of IOX4 band up to 10 cm width was also observed in the 6-month post-administration hair samples.
Collapse
Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan.,Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Mariko Shibuya
- Drug Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan
| | - Yat-Ming So
- Racing Laboratory, The Hong Kong Jockey Club, Sha Tin Racecourse, Sha Tin, N.T., Hong Kong, China
| | - Jenny K Y Wong
- Racing Laboratory, The Hong Kong Jockey Club, Sha Tin Racecourse, Sha Tin, N.T., Hong Kong, China
| | - Emmie N M Ho
- Racing Laboratory, The Hong Kong Jockey Club, Sha Tin Racecourse, Sha Tin, N.T., Hong Kong, China
| | - Kanichi Kusano
- Veterinarian Section, Equine Department, JRA, Tokyo, Japan
| | - Yu Sone
- Veterinarian Section, Equine Department, JRA, Tokyo, Japan
| | - Takahiro Kamiya
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, Chiba, Japan
| | - Ai Wakuno
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, Chiba, Japan
| | - Hideki Ito
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, Chiba, Japan
| | - Kenji Miyata
- JRA Equestrian Park Utsunomiya Office, Tochigi, Japan
| | - Masayuki Yamada
- Drug Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan
| |
Collapse
|
26
|
Tanaka S, Iida H, Ueno M, Hirokawa F, Yoshida H, Ishii H, Nomi T, Nakai T, Kaibori M, Ikoma H, Noda T, Shinkawa H, Maehira H, Hayami S, Komeda K, Kubo S. Postoperative loss of independence 1 year after liver resection: prospective multicentre study. Br J Surg 2022; 109:e54-e55. [PMID: 35041737 DOI: 10.1093/bjs/znab452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 12/08/2021] [Indexed: 11/14/2022]
Affiliation(s)
- S Tanaka
- Department of Hepato-Biliary-Pancreatic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - H Iida
- Division of Gastrointestinal, Breast, and General Surgery, Department of Surgery, Shiga University of Medical Science, Otsu, Japan
| | - M Ueno
- Second Department of Surgery, Wakayama Medical University, Wakayama, Japan
| | - F Hirokawa
- Department of General and Gastroenterological Surgery, Osaka Medical College, Takatsuki, Osaka, Japan
| | - H Yoshida
- Department of Medical Statistics, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - H Ishii
- Department of Medical Statistics, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Nomi
- Department of Surgery, Nara Medical University, Kashihara, Nara, Japan
| | - T Nakai
- Department of Surgery, Faculty of Medicine, Kindai University, Osaka-Sayama, Osaka, Japan
| | - M Kaibori
- Department of Surgery, Hirakata Hospital, Kansai Medical University, Hirakata, Osaka, Japan
| | - H Ikoma
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Noda
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - H Shinkawa
- Department of Hepato-Biliary-Pancreatic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - H Maehira
- Division of Gastrointestinal, Breast, and General Surgery, Department of Surgery, Shiga University of Medical Science, Otsu, Japan
| | - S Hayami
- Second Department of Surgery, Wakayama Medical University, Wakayama, Japan
| | - K Komeda
- Department of General and Gastroenterological Surgery, Osaka Medical College, Takatsuki, Osaka, Japan
| | - S Kubo
- Department of Hepato-Biliary-Pancreatic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| |
Collapse
|
27
|
Ishii H, Leung GNW, Yamashita S, Nagata SI, Kushiro A, Sakai S, Toju K, Okada J, Kawasaki K, Kusano K, Kijima-Suda I. Comprehensive metabolic study of nicotine in equine plasma and urine using liquid chromatography/high-resolution mass spectrometry for the identification of unique biomarkers for doping control. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1190:123100. [PMID: 35032890 DOI: 10.1016/j.jchromb.2022.123100] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 10/12/2021] [Revised: 12/07/2021] [Accepted: 01/03/2022] [Indexed: 10/19/2022]
Abstract
Nicotine is classified as a stimulant, and its use is banned in horse racing and equestrian sports by the International Federation of Horseracing Authorities and the Fédération Équestre Internationale, respectively. Because nicotine is a major alkaloid of tobacco leaves, there is a potential risk that doping control samples may be contaminated by tobacco cigarettes or smoke during sample collection. In order to differentiate the genuine doping and sample contamination with tobacco leaves, it is necessary to monitor unique metabolites as biomarkers for nicotine administration and intake. However, little is known about the metabolic fate of nicotine in horses. This is the first report of comprehensive metabolism study of nicotine in horses. Using liquid chromatography/electrospray ionization high-resolution mass spectrometry, we identified a total of 17 metabolites, including one novel horse-specific metabolite (i.e., 4-hydroxy-4-(3-pyridyl)-N-methylbutanamide), in post-administration urine samples after nasoesophageal administration of nicotine to three thoroughbred mares; eight of these compounds were confirmed based on reference standards. Among these metabolites, N-hydroxymethylnorcotinine was the major urinary metabolite in equine, but it could only be tentatively identified by mass spectral interpretation due to the lack of reference material. In addition, we developed simultaneous quantification methods for the eight target analytes in plasma and urine, and applied them to post-administration samples to establish elimination profiles of nicotine and its metabolites. The quantification results revealed that trans-3'-hydroxycotinine could be quantified for the longest period in both plasma (72 h post-administration) and urine (96 h post-administration). Therefore, this metabolite is the most appropriate monitoring target for nicotine exposure for the purpose of doping control due to its long detection times and the availability of its reference material. Further, we identified trans-3'-hydroxycotinine as a unique biomarker allowing differentiation between nicotine administration and sample contamination with tobacco leaves.
Collapse
Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan; Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan.
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
| | - Shozo Yamashita
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
| | - Shun-Ichi Nagata
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
| | - Asuka Kushiro
- Equine Research Institute, Research Planning & Coordination Division, JRA, 1400-4, Shiba, Shimotsuke, Tochigi 329-0412, Japan
| | - Satoshi Sakai
- Race Horse Hospital, Miho Training Center, JRA, 2500-2, Oaza-Mikoma, Miho-mura, Inashiki-gun, Ibaraki 300-0493, Japan
| | - Kota Toju
- Race Horse Hospital, Miho Training Center, JRA, 2500-2, Oaza-Mikoma, Miho-mura, Inashiki-gun, Ibaraki 300-0493, Japan
| | - Jun Okada
- Veterinarian Section, Equine Department, JRA, 6-11-1 Roppongi, Minato-ku, Tokyo 105-0003, Japan
| | - Kazumi Kawasaki
- Veterinarian Section, Equine Department, JRA, 6-11-1 Roppongi, Minato-ku, Tokyo 105-0003, Japan
| | - Kanichi Kusano
- Race Horse Hospital, Ritto Training Center, JRA, 1028, Misono, Ritto, Shiga 520-3085, Japan
| | - Isao Kijima-Suda
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi 320-0851, Japan
| |
Collapse
|
28
|
Takebe Y, Shiina M, Sugamiya Y, Nakae Y, Katayama T, Otani T, Ishii H, Takanishi A. Development of Neonatal Airway Management Simulator for Evaluation of Tracheal Intubation. Annu Int Conf IEEE Eng Med Biol Soc 2021; 2021:7535-7538. [PMID: 34892835 DOI: 10.1109/embc46164.2021.9630456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The long-term goal of this study is a training system that can simulate medical cases and advise physicians based on quantitative evaluation of neonatal resuscitation. In this paper, we designed and manufactured a neonatal airway management simulator for quantitative evaluation of tracheal intubation. This robotic simulator is equipped with 25 sensors of 6 types, which detect motions that lead to complications, inside the manikin replicated a neonate. A performance experiment of the developed sensor and an evaluation experiment with physicians were conducted. We observed that an erroneous operation in the laryngoscopy can be detected by the sensors in our simulator.
Collapse
|
29
|
Tobe A, Tanaka A, Tokuda Y, Akita S, Fujii T, Miki Y, Furusawa K, Ishii H, Usui A, Murohara T. Incidental findings on computed tomography for preoperative assessment before transcatheter aortic valve implantation in japanese patients. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1626] [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: 11/13/2022] Open
Abstract
Abstract
Background
Extra-cardiovascular incidental findings (IFs) on preoperative computed tomography (CT) are frequently observed in transcatheter aortic valve implantation (TAVI) candidates. However, the backgrounds of TAVI candidates and comorbidities differ based on the race and/or country, and data on IFs in a specific population are not always applicable to another.
Objective
To assess the prevalence, type, and clinical impact of IFs in Japanese TAVI candidates.
Methods
This was a retrospective, single-center, observational study. CT reports of 257 TAVI candidates were reviewed, and IFs were classified as (a) insignificant: findings that did not require further investigation, treatment, or follow-up; (b) intermediate: findings that needed to be followed up or were considered for further investigation but did not affect the planning of TAVI; and (c) significant: findings that required further investigation immediately or affected the planning of TAVI.
Results
At least one IF was found in 254 patients (98.8%). Insignificant, intermediate, and significant IFs were found in 253 (98.4%), 153 (59.5%), and 34 (13.2%) patients, respectively. Newly indicated significant IFs were found in 19 patients (7.4%). In 2 patients (0.8%), TAVI was canceled because of significant IFs. In patients who consequently underwent TAVI, the presence of significant IFs was not associated with the duration from CT performance to TAVI [28 (19–40) days vs. 27 (19–43) days, p=0.74] and all-cause mortality during the median follow-up period of 413 (223–805) days (p=0.44).
Conclusion
Almost all Japanese TAVI candidates had at least one IF, and the prevalence of significant IFs was not negligible. Although the presence of significant IFs was not associated with mid-term mortality, appropriate management of IFs was considered important.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- A Tobe
- Nagoya University Hospital, Cardiology, Aichi, Japan
| | - A Tanaka
- Nagoya University Hospital, Cardiology, Aichi, Japan
| | - Y Tokuda
- Nagoya University Hospital, Cardiac Surgery, Aichi, Japan
| | - S Akita
- Nagoya University Hospital, Cardiac Surgery, Aichi, Japan
| | - T Fujii
- Nagoya University Hospital, Cardiac Surgery, Aichi, Japan
| | - Y Miki
- Nagoya University Hospital, Cardiology, Aichi, Japan
| | - K Furusawa
- Nagoya University Hospital, Cardiology, Aichi, Japan
| | - H Ishii
- Fujita Health University Bantane Hospital, Cardiology, Aichi, Japan
| | - A Usui
- Nagoya University Hospital, Cardiac Surgery, Aichi, Japan
| | - T Murohara
- Nagoya University Hospital, Cardiology, Aichi, Japan
| |
Collapse
|
30
|
Tobe A, Tanaka A, Tokuda Y, Akita S, Fujii T, Miki Y, Furusawa K, Ishii H, Usui A, Murohara T. Regression of electrocardiographic left ventricular hypertrophy after transcatheter aortic valve replacement for aortic stenosis. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1625] [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: 11/12/2022] Open
Abstract
Abstract
Background
The changes in electrocardiographic left ventricular hypertrophy (ECG-LVH) after transcatheter aortic valve replacement (TAVR) are not fully elucidated.
Methods
This retrospective single-center study investigated 156 patients who underwent TAVR for severe aortic stenosis. Twelve-leads ECGs obtained before and at 2 days and 1, 6 and 12 months after TAVR were analyzed. Patients with an implanted pacemaker, with a bundle branch block before or after TAVR or whose electrocardiogram at any measuring point was not available were excluded. As an assessment of ECG-LVH, Sokolow-Lyon voltage, Cornell voltage, Cornell product and Peguero–Lo Presti voltage were evaluated.
Results
Finally, 64 patients were included. Sokolow-Lyon voltage, Cornell voltage, Cornell product and Peguero–Lo Presti voltage significantly decreased between 1 and 6 months after TAVR compared to baseline. The prevalence of ECG-LVH criteria for each parameter decreased as well. QRS duration significantly decreased at 6 months after TAVR and the number of patients with strain pattern decreased significantly at 1 month when compared to baseline. When the patients were divided into two groups, those with and without ECG-LVH at baseline, ECG-LVH parameter values decreased significantly, especially in patients with ECG-LVH at baseline.
Conclusion
Regression of ECG-LVH after TAVR was demonstrated as per various criteria of ECG-LVH. The voltages and prevalence of ECG-LVH decreased significantly between 1 and 6 months after TAVR.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- A Tobe
- Nagoya University Hospital, Cardiology, Aichi, Japan
| | - A Tanaka
- Nagoya University Hospital, Cardiology, Aichi, Japan
| | - Y Tokuda
- Nagoya University Hospital, Cardiac Surgery, Aichi, Japan
| | - S Akita
- Nagoya University Hospital, Cardiac Surgery, Aichi, Japan
| | - T Fujii
- Nagoya University Hospital, Cardiac Surgery, Aichi, Japan
| | - Y Miki
- Nagoya University Hospital, Cardiology, Aichi, Japan
| | - K Furusawa
- Nagoya University Hospital, Cardiology, Aichi, Japan
| | - H Ishii
- Fujita Health University Bantane Hospital, Cardiology, Aichi, Japan
| | - A Usui
- Nagoya University Hospital, Cardiac Surgery, Aichi, Japan
| | - T Murohara
- Nagoya University Hospital, Cardiology, Aichi, Japan
| |
Collapse
|
31
|
Chan KY, Thornton H, Gordon C, Ishii H, Clark M. 695 Photo-otoscopy Audit: A Review of Change in Departmental Practice Due to COVID-19. Br J Surg 2021. [PMCID: PMC8524550 DOI: 10.1093/bjs/znab259.553] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Background Photo-otoscopy is a new service set up during the COVID-19 pandemic, with the view to minimise unnecessary appointments, protect vulnerable patients, and optimise efficiency of ENT-outpatient appointments. The objectives are to assess rate of diagnostic photos and investigate how to improve this service. Method First cycle was performed between June and July and second cycle between October and December 2020. All patients attending Audiology who had a photo taken were included. Photos were analysed based on a number of variables to identify the proportion of diagnostic and non-diagnostic photos. First cycle highlighted a few changes to practice that were then instigated for second cycle. Results 324 patients and 232 patients were included in first and second cycle respectively. 17 operators/audiologists were involved. There is slight improvement in percentage of diagnostic photos in second cycle compared to first (30.6% to 31.9% in right ear and 23.5% to 35.8% in left ear). Percentages of non-diagnostic photos with blurriness as sole reason have increased compared to first cycle. Percentages of non-diagnostic photos with all 3 variables present have reduced significantly. Mean percentage of acceptable photos per operator have also improved. 8 out of 10 ENT consultants/registrars found the service useful. Conclusions Rate of diagnostic photos remained low (<40%) despite implementation of changes to practice from first cycle. 38% of non-diagnostic photos were wax-related. There is significant variation in rate of diagnostic photos due to its operator-dependent nature. Given the expansion of telemedicine, there is definitely scope for future development for photo-otoscopy.
Collapse
Affiliation(s)
- K Y Chan
- Department of ENT and Head & Neck Surgery, Gloucestershire Royal Hospital, Gloucester, United Kingdom
| | - H Thornton
- Department of ENT and Head & Neck Surgery, Gloucestershire Royal Hospital, Gloucester, United Kingdom
| | - C Gordon
- Department of ENT and Head & Neck Surgery, Gloucestershire Royal Hospital, Gloucester, United Kingdom
| | - H Ishii
- Department of ENT and Head & Neck Surgery, Gloucestershire Royal Hospital, Gloucester, United Kingdom
| | - M Clark
- Department of ENT and Head & Neck Surgery, Gloucestershire Royal Hospital, Gloucester, United Kingdom
| |
Collapse
|
32
|
Ishii H, Shibuya M, So YM, Wong JKY, Ho ENM, Kusano K, Sone Y, Kamiya T, Wakuno A, Ito H, Miyata K, Yamada M, Leung GNW. Comprehensive metabolic study of IOX4 in equine urine and plasma using liquid chromatography/electrospray ionization Q Exactive high-resolution mass spectrometer for the purpose of doping control. Drug Test Anal 2021; 14:233-251. [PMID: 34612014 DOI: 10.1002/dta.3172] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/24/2021] [Accepted: 09/27/2021] [Indexed: 12/15/2022]
Abstract
IOX4 is a hypoxia-inducible factor prolyl hydroxylase (HIF-PHD) inhibitor, which was developed for the treatment of anemia by exerting hematopoietic effects. The administration of HIF-PHD inhibitors such as IOX4 to horses is strictly prohibited by the International Federation of Horseracing Authorities and the Fédération Équestre Internationale. To the best of our knowledge, this is the first comprehensive metabolic study of IOX4 in horse plasma and urine after a nasoesophageal administration of IOX4 (500 mg/day, 3 days). A total of four metabolites (three mono-hydroxylated IOX4 and one IOX4 glucuronide) were detected from the in vitro study using homogenized horse liver. As for the in vivo study, post-administration plasma and urine samples were comprehensively analyzed with liquid chromatography/electrospray ionization high-resolution mass spectrometry to identify potential metabolites and determine their corresponding detection times. A total of 10 metabolites (including IOX4 glucuronide, IOX4 glucoside, O-desbutyl IOX4, O-desbutyl IOX4 glucuronide, four mono-hydroxylated IOX4, N-oxidized IOX4, and N-oxidized IOX4 glucoside) were found in urine and three metabolites (glucuronide, glucoside, and O-desbutyl) in plasma. Thus, the respective quantification methods for the detection of free and conjugated IOX4 metabolites in urine and plasma with a biphase enzymatic hydrolysis were developed and applied to post-administration samples for the establishment of elimination profiles of IOX4. The detection times of total IOX4 in urine and plasma could be successfully prolonged to at least 312 h.
Collapse
Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Tochigi, Japan.,Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Mariko Shibuya
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Tochigi, Japan
| | - Yat-Ming So
- Racing Laboratory, The Hong Kong Jockey Club, Sha Tin Racecourse, Sha Tin, N.T., Hong Kong
| | - Jenny K Y Wong
- Racing Laboratory, The Hong Kong Jockey Club, Sha Tin Racecourse, Sha Tin, N.T., Hong Kong
| | - Emmie N M Ho
- Racing Laboratory, The Hong Kong Jockey Club, Sha Tin Racecourse, Sha Tin, N.T., Hong Kong
| | - Kanichi Kusano
- Veterinarian Section, Equine Department, JRA, Minato, Tokyo, Japan
| | - Yu Sone
- Veterinarian Section, Equine Department, JRA, Minato, Tokyo, Japan
| | - Takahiro Kamiya
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, Shiroi, Chiba, Japan
| | - Ai Wakuno
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, Shiroi, Chiba, Japan
| | - Hideki Ito
- Equine Veterinary Clinic, Horse Racing School, Japan Racing Association, Shiroi, Chiba, Japan
| | - Kenji Miyata
- JRA Equestrian Park Utsunomiya Office, Utsunomiya, Tochigi, Japan
| | - Masayuki Yamada
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Tochigi, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Tochigi, Japan
| |
Collapse
|
33
|
Miura S, Azuma K, Yoshioka H, Teraoka S, Ishii H, Koyama K, Kibata K, Ozawa Y, Tokito T, Koh Y, Shimokawa T, Kurata T, Yamamoto N, Tanaka H. MA02.05 A Phase I Study of Afatinib in Combination With Osimertinib in Patients After Failure of Prior Osimertinib. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
34
|
Doi T, Tsutsumimoto K, Nakakubo S, Kurita S, Ishii H, Shimada H. Associations Between Active Mobility Index and Disability. J Am Med Dir Assoc 2021; 23:1335-1341. [PMID: 34560017 DOI: 10.1016/j.jamda.2021.08.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 02/02/2021] [Revised: 08/16/2021] [Accepted: 08/23/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVES To develop a questionnaire-based Active Mobility Index (AMI) to assess going-out behavior with physical and social activity among older adults, and to assess the criterion-related and predictive validity of the AMI. DESIGN Prospective cohort study. SETTING AND PARTICIPANTS General community setting. Participants comprised 4432 older adults [mean age: 75.9 ± 4.3 (70-96) years; 2100 men (47.4%)]. METHODS AMI assessed life-space and activities in each life-space (distance from the respondent's home: <1 km, 1-10 km, or >10 km) according to physical or social activity during the past 1 month by noting frequency, purpose, type of transportation, interaction with others, and physical activity. Baseline characteristics and outcomes were compared by AMI score quartiles (highest: Q4). To examine the criterion-related validity of AMI, depressive symptoms, frailty, and cognitive function were assessed. During follow-up, incident disability was monitored by Long Term Care Insurance certification. RESULTS Lower scores (Q1-Q3 groups) were associated with more depressive symptoms, frailty, and cognitive impairment compared with the Q4 group (all P < .001). Multiple logistic regression analyses revealed significantly higher odds ratios in the Q1 group in all health adverse outcomes compared with the Q4 group [depressive symptoms, odds ratio (OR) 3.94, 95% confidence interval (CI) 2.95-5.28; frailty, OR 3.20, 95% CI 2.31-4.44; cognitive impairment, OR 1.28, 95% CI 1.04-1.57]. Cox proportional hazards modeling indicated that the Q1 group had a higher risk of incident disability compared with the group (hazard ratio 1.53, 95% CI 1.24-1.88). CONCLUSIONS AND IMPLICATIONS AMI to assess life-space with physical and social activity among older people was associated with depressive symptoms, frailty, and cognitive impairment. Lower AMI scores were associated with higher incident disability risk. Further studies are needed to elucidate whether AMI is causally associated with incident adverse health outcomes.
Collapse
Affiliation(s)
- Takehiko Doi
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan.
| | - Kota Tsutsumimoto
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan
| | - Sho Nakakubo
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan
| | - Satoshi Kurita
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan
| | - Hideaki Ishii
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan
| | - Hiroyuki Shimada
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan
| |
Collapse
|
35
|
Ishii H, Doi T, Tsutsumimoto K, Nakakubo S, Kurita S, Shimada H. Driving cessation and physical frailty in community-dwelling older adults: A longitudinal study. Geriatr Gerontol Int 2021; 21:1047-1052. [PMID: 34532952 DOI: 10.1111/ggi.14272] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 07/30/2021] [Accepted: 08/12/2021] [Indexed: 11/27/2022]
Abstract
AIM Physical frailty is a critical health problem that can increase the risk of adverse health outcomes in older adults. Driving cessation has been associated with negative outcomes such as disability. However, the relationship between physical frailty and driving cessation remains unclear. Thus, this study aimed to examine whether driving cessation is associated with physical frailty transition in community-dwelling older adults. METHODS This prospective cohort study was performed in a community setting in Japan. Participants were 2934 older Japanese adults, classified into two groups according to their driving status: a driving group (drivers at baseline who continued driving at a 4-year follow-up) and a driving cessation group (drivers at baseline who ceased driving by 4-year follow-up). We examined the association between physical frailty transition and driving cessation over a 4-year period, using logistic regression analysis before and after imputation. RESULTS In total, 3.9% of community-dwelling older adults had ceased driving by the 4-year follow-up. Rates for physical frailty transition in the driving and driving cessation groups were 4.6% and 17.1%, respectively (P < 0.001). In fully adjusted logistic regression analysis, when compared with driving, driving cessation independently affected physical frailty transition. The results were similar after multiple imputations. CONCLUSIONS Our findings indicated driving cessation was an independent risk factor associated with physical frailty transition in older adults. As physical frailty in older adults can contribute to negative health outcomes, including increased disability and mortality, preventing frailty has important public health implications. Geriatr Gerontol Int 2021; 21: 1047-1052.
Collapse
Affiliation(s)
- Hideaki Ishii
- Department of Physical Therapy, School of Health Sciences at Narita, International University of Health and Welfare, Narita, Japan.,Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Takehiko Doi
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Kota Tsutsumimoto
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Sho Nakakubo
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Satoshi Kurita
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Hiroyuki Shimada
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| |
Collapse
|
36
|
Doi T, Nakakubo S, Tsutsumimoto K, Kurita S, Ishii H, Shimada H. Spatiotemporal gait characteristics and risk of mortality in community-dwelling older adults. Maturitas 2021; 151:31-35. [PMID: 34446276 DOI: 10.1016/j.maturitas.2021.06.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 01/15/2021] [Revised: 05/26/2021] [Accepted: 06/20/2021] [Indexed: 12/30/2022]
Abstract
Gait is one of the best measures of physical function in older adults. The study examined the association between spatiotemporal gait variables and mortality among older adults. The participants were 4,298 older adults in the National Center for Geriatrics and Gerontology - Study of Geriatric Syndromes. At baseline we measured the following spatiotemporal gait variables: gait speed, stride length, cadence, and stride length variability. Demographic variables, medical conditions, cognitive function, and physical inactivity were also assessed at baseline. We obtained gait measurements over five trials using an electronic gait-measuring device mounted at the middle 2.4 m section of a 6.4 m straight and flat pathway, with 2 m allowed for acceleration and deceleration. Participants' usual gait speed was measured. Subsequent incident death was confirmed using administrative data. During follow-up (mean duration: 1,571 days), there were 185 incident deaths among participants. Low function on all gait variables increased risk of mortality (adjusted hazard ratio [95% confidence interval], gait speed: 1.83 [1.31-2.56], stride length: 1.85 [1.31-2.62], cadence: 1.60 [1.17-2.18], stride length variability: 1.50 [1.09-2.06]). In addition, mortality risk increased with the number of variables showing low gait function compared with normal gait function (p < .05). Slower gait speed, shorter stride length, lower cadence, and higher stride length variability were associated with increased mortality. Multifaceted gait analysis could be useful for evaluating mortality risk.
Collapse
Affiliation(s)
- Takehiko Doi
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, 7-430, Morioka, Obu, Aichi 474-8511, Japan.
| | - Sho Nakakubo
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, 7-430, Morioka, Obu, Aichi 474-8511, Japan
| | - Kota Tsutsumimoto
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, 7-430, Morioka, Obu, Aichi 474-8511, Japan
| | - Satoshi Kurita
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, 7-430, Morioka, Obu, Aichi 474-8511, Japan
| | - Hideaki Ishii
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, 7-430, Morioka, Obu, Aichi 474-8511, Japan
| | - Hiroyuki Shimada
- Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, 7-430, Morioka, Obu, Aichi 474-8511, Japan
| |
Collapse
|
37
|
Tozaki T, Kwak HG, Nakamura K, Takasu M, Ishii H, Ohnuma A, Kikuchi M, Ishige T, Kakoi H, Hirota KI, Kusano K, Hirata M, Nirasawa T, Nagata SI. Sequence determination of phosphorothioated oligonucleotides using MALDI-TOF mass spectrometry for controlling gene doping in equestrian sports. Drug Test Anal 2021; 14:175-180. [PMID: 34418319 DOI: 10.1002/dta.3154] [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] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 07/23/2021] [Accepted: 08/17/2021] [Indexed: 11/07/2022]
Abstract
In human and equestrian sporting events, one method of gene doping is the illegal use of therapeutic oligonucleotides to alter gene expression. In this study, we aimed to identify therapeutic oligonucleotides via sequencing using matrix-assisted laser desorption/ionisation-time-of-flight mass spectrometry (MALDI-TOF MS). As a model of therapeutic oligonucleotides, 22 bp-long phosphorothioated oligonucleotides (PSOs) were used. By using a Clarity OTX kit for extracting short-length oligonucleotides, a spectrum of singly charged PSO with a mean intensity of 6.08 × 104 (standard deviation: 4.34 × 103 ) was detected from 500 pmol PSO in 1 ml horse plasma using the linear negative mode of MALDI-TOF MS. In addition, a 17 bp sequence was determined using in-source decay (ISD) mode, indicating that 500 pmol of a PSO in 1 ml plasma is the detection limit for sequencing. Using the determined sequences (17 bp), a targeted gene for PSO was singly identified on the horse reference genome, EquCab2.0, via a GGGenome search. These procedures can be potentially used to identify therapeutic oligonucleotides, whose nucleotides are unknown, for gene doping control.
Collapse
Affiliation(s)
- Teruaki Tozaki
- Genetic Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan.,Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Gifu, Japan
| | - Ho-Geun Kwak
- Daltonics Division, Bruker Japan K.K., Yokohama, Kanagawa, Japan
| | - Kotono Nakamura
- Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Gifu, Japan
| | - Masaki Takasu
- Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Gifu, Japan
| | - Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan
| | - Aoi Ohnuma
- Genetic Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan
| | - Mio Kikuchi
- Genetic Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan
| | - Taichiro Ishige
- Genetic Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan
| | - Hironaga Kakoi
- Genetic Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan
| | - Kei-Ichi Hirota
- Genetic Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan
| | - Kanichi Kusano
- Equine Department, Japan Racing Association, Tokyo, Japan
| | - Minoru Hirata
- Daltonics Division, Bruker Japan K.K., Yokohama, Kanagawa, Japan
| | - Takashi Nirasawa
- Daltonics Division, Bruker Japan K.K., Yokohama, Kanagawa, Japan
| | - Shun-Ichi Nagata
- Genetic Analysis Department, Laboratory of Racing Chemistry, Tochigi, Japan
| |
Collapse
|
38
|
Nakakubo S, Doi T, Tsutsumimoto K, Kurita S, Ishii H, Shimada H. Sleep duration and progression to sarcopenia in Japanese community-dwelling older adults: a 4 year longitudinal study. J Cachexia Sarcopenia Muscle 2021; 12:1034-1041. [PMID: 34190427 PMCID: PMC8350197 DOI: 10.1002/jcsm.12735] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/08/2021] [Accepted: 05/21/2021] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Identifying factors that contribute to the development of sarcopenia in older adults is a public health priority. Although several studies have examined the association between sleep duration and sarcopenia, additional evidence is needed to reveal the causality of this association, especially from a longitudinal study. The purpose of the present study was to examine whether sleep duration was associated with the progression to sarcopenia and its subcomponents among community-dwelling older adults in Japan. METHODS A total of 3918 older community-dwelling people (mean age: 73.2 ± 6.0 years, 51.8% female) included in the National Center for Geriatrics and Gerontology Study of Geriatric Syndromes were analysed. Sleep duration was assessed using a self-reported questionnaire. Logistic regression analysis was used to estimate the odds ratios (ORs) and 95% confidence intervals (CIs) of progression of sarcopenia at Wave 2 (4 years later), according to the three categories of sleep duration [short: ≤6.0 h, medium: 6.1-8.9 h (control), & long: ≥9.0 h)] at Wave 1. RESULTS The numbers in each group in the second wave among the total sample were as follows: short 403 (10.3%), medium 2877 (73.4%), and long 638 (16.3%). Significant associations with the progression of sarcopenia were found in the long sleep duration group compared with the medium one, even after adjustment for other covariates (OR 1.66, 95% CI: 1.02-2.69, P = 0.040). Long sleep duration was significantly associated with slow gait (OR: 1.55, 95% CI: 1.17-2.06, P = 0.002) and low grip strength (OR: 1.34, 95% CI: 1.00-1.78, P = 0.047) but was not associated with low muscle mass (OR: 1.33, 95% CI: 0.74-2.38, P = 0.343). CONCLUSIONS This study revealed that long sleep duration was associated with an increased risk of progression to sarcopenia among older adults.
Collapse
Affiliation(s)
- Sho Nakakubo
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Takehiko Doi
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Kota Tsutsumimoto
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Satoshi Kurita
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Hideaki Ishii
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Hiroyuki Shimada
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| |
Collapse
|
39
|
Nakakubo S, Doi T, Tsutsumimoto K, Kurita S, Ishii H, Suzuki T, Shimada H. The Association of Sleep Habits and Advancing Age in Japanese Older Adults: Results from the National Center for Geriatrics and Gerontology Study of Geriatric Syndromes. Gerontology 2021; 68:209-213. [PMID: 34320492 DOI: 10.1159/000516387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 06/11/2020] [Accepted: 04/07/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The association of sleep habits with "advancing age among older adults" is not fully understood. OBJECTIVES The purpose of the present study was to examine the association of sleep habits with advancing age among community-dwelling older adults in Japan. METHODS A total of 18,005 older people (mean age: 73.2 ± 6.0 years; 8,070 men and 9,935 women) from the National Center for Geriatrics and Gerontology Study of Geriatric Syndromes were analyzed. Participants were asked in face-to-face interviews about the times they usually go to bed, fall asleep, wake-up, and get up. The amount of time spent in bed and self-reported sleep duration were then calculated from the differences between these times. As other parameters, the subjects were also asked about sleep latency, time spent in bed after waking up, number of nocturnal awakenings, and duration of napping in a typical day. RESULTS The results of the Jonckheere-Terpstra test showed that all sleep parameters shifted to an earlier time (going to bed, falling asleep, waking up, and getting out of bed), longer duration (sleep duration, time spent in bed, sleep latency, time spent in bed after waking up, and napping), or more nocturnal awakenings with advancing age (all p < 0.01). Among the men, the time of waking up was not significantly associated with age, while among the women, the time of getting up was not significantly associated with age. CONCLUSION These results from a large cohort show the age-related trends of sleep habits in community-dwelling older adults in Japan. Our results revealed that a longer duration and earlier timing of sleep are associated with advancing age.
Collapse
Affiliation(s)
- Sho Nakakubo
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Takehiko Doi
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Kota Tsutsumimoto
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Satoshi Kurita
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Hideaki Ishii
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Takao Suzuki
- Research Institute, National Center for Geriatrics and Gerontology, Obu, Japan.,Research Institute of Aging and Development, Oberlin University, Tokyo, Japan
| | - Hiroyuki Shimada
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| |
Collapse
|
40
|
Kurita S, Doi T, Tsutsumimoto K, Nakakubo S, Ishii H, Shimada H. Computer use and cognitive decline among Japanese older adults: A prospective cohort study. Arch Gerontol Geriatr 2021; 97:104488. [PMID: 34332236 DOI: 10.1016/j.archger.2021.104488] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 07/11/2021] [Accepted: 07/13/2021] [Indexed: 11/24/2022]
Abstract
INTRODUCTION This study aimed to examine the prospective association between computer use and cognitive decline among community-dwelling Japanese older adults, considering the characteristics of computer users. METHODS This four-year prospective cohort study was conducted in Obu, Japan. Participants who were cognitive intact at Wave 1 (2011-2012) were followed through the study period. Cognitive decline was defined as scoring below the standard threshold in at least one of four neuropsychological tests at Wave 2 (2015-2016). The association between computer use at Wave 1 and cognitive decline was examined using logistic regression for complete samples (n = 2010, 52.5% female, mean 71.0 ± 4.7 years) and imputed samples (n = 3435, 51.8% female, mean 71.5 ± 5.3 years). RESULTS The computer use group had a reduced adjusted odds ratio (aOR) of cognitive decline, after adjustment for covariates, in both the complete and imputed samples (complete samples: aOR 0.71, 95% confidence interval [CI] 0.52-0.97, p = 0.030; imputed samples: aOR 0.67, 95% CI 0.51-0.88, p < 0.003). Stratified analysis of both samples showed that computer users with ≥ 10 years' education, a GDS score of < 6, or a walking speed of ≥ 1.0m/s, showed reduced aOR for cognitive decline (aOR 0.61 to 0.69, p < 0.05). Those with < 10 years of education years, GDS scores ≥ 6 of GDS, or walking speed < 1.0m/s did not show significant association. CONCLUSION Computer use is longitudinally associated with protected cognitive function, based on computer user characteristics.
Collapse
Affiliation(s)
- Satoshi Kurita
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology Research Institute, Obu City, Japan.
| | - Takehiko Doi
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology Research Institute, Obu City, Japan
| | - Kota Tsutsumimoto
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology Research Institute, Obu City, Japan
| | - Sho Nakakubo
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology Research Institute, Obu City, Japan
| | - Hideaki Ishii
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology Research Institute, Obu City, Japan
| | - Hiroyuki Shimada
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology Research Institute, Obu City, Japan
| |
Collapse
|
41
|
Ishii H, Shibuya M, Leung GNW, Nozawa S, Yamashita S, Yamada M, Kushiro A, Kasashima Y, Okada J, Kawasaki K, Kijima-Suda I. Detection and longitudinal distribution of GW1516 and its metabolites in equine hair for doping control using liquid chromatography/high-resolution mass spectrometry. Rapid Commun Mass Spectrom 2021; 35:e9050. [PMID: 33470485 DOI: 10.1002/rcm.9050] [Citation(s) in RCA: 3] [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] [Received: 12/14/2020] [Revised: 01/18/2021] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
RATIONALE GW1516 is a peroxisome proliferator-activated receptor-δ (PPAR-δ) agonist that is banned in horseracing and equestrian sports. Long-term detection and longitudinal distribution of GW1516 in the mane of a horse are reported for the first time and this hair analysis could prolong the detection window of GW1516 for doping control. METHODS Mane hairs were divided into three segments (0-7, 7-15, and >15 cm from the cut end) and completely pulverized and homogenized for analysis. The pulverized hair samples were extracted with methanol followed by further purification and the extracts were analyzed by liquid chromatography/electrospray ionization high-resolution mass spectrometry (LC/ESI-HRMS) using a Q-Exactive instrument. This method was successfully validated and applied to post-administration samples to confirm the presence of GW1516 and its metabolites and estimate the uptake amounts of GW1516. RESULTS After administration of 150 mg of GW1516 to a thoroughbred mare, GW1516 was detected in one of two segments of all mane hairs, and four metabolites, namely GW1516 sulfoxide, GW1516 sulfone, 5-(hydroxymethyl)-4-methyl-2-(4-trifluoromethylphenyl)thiazole (HMTT), and 4-methyl-2-[4-(trifluoromethyl)phenyl]-1,3-thiazole-5-carboxylic acid (MTTC), were also identified. The longitudinal distribution analysis results showed that the maximum uptake of GW1516 into hair (approximately 0.05 pg/mg) was observed at around 13 weeks post-administration and GW1516 could be detected and confirmed up to 6 months post-administration. CONCLUSIONS The parent drug GW1516 was identified as the most appropriate monitoring target in equine hair for controlling its misuse in horses. The use of hair analysis could extend the detection time of GW1516 to at least 6 months after the administration of 150 mg of GW1516 to a thoroughbred mare.
Collapse
Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Mariko Shibuya
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Satoshi Nozawa
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Shozo Yamashita
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Masayuki Yamada
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Asuka Kushiro
- Research Planning & Coordination Division, JRA, Equine Research Institute, 1400-4, Shiba, Shimotsuke, Tochigi, 329-0412, Japan
| | - Yoshinori Kasashima
- Research Planning & Coordination Division, JRA, Equine Research Institute, 1400-4, Shiba, Shimotsuke, Tochigi, 329-0412, Japan
| | - Jun Okada
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo, 105-0003, Japan
| | - Kazumi Kawasaki
- Veterinarian Section, Equine Department, Japan Racing Association, 6-11-1 Roppongi, Minato-ku, Tokyo, 105-0003, Japan
| | - Isao Kijima-Suda
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| |
Collapse
|
42
|
Abstract
OBJECTIVES To examine the relationship of driving status and frailty with disability in older adults. DESIGN A prospective study. SETTING AND PARTICIPANTS The study included 8533 participants (mean age: 72.0±6.1 years (range: 60-98 years), women: 54.1%) in a community setting. MEASURES Driving status and frailty were assessed at baseline. The clinical definition of frailty was used according to the Japanese Cardiovascular Health Study index. Disability was prospectively determined using a record of Japanese long-term care insurance (LTCI). RESULTS During the follow-up period (mean duration: 23.5 months), 58 (0.7%) participants were regarded as moving out of the city, 80 (0.9%) participants had died and 311 (3.6%) participants were certified by LTCI. The proportion of disability was 1.3% among the not-frail group and 5.3% among the frail group. The proportion of disability was 2.5% in participants who were currently driving and 7.5% in those not driving. Based on frailty status and driving, participants were further classified into four groups: not frail and currently driving (n=2945), not frail and not driving (n=642), frail and currently driving (n=3598) and frail and not driving (n=1348). Compared with older adults who are not frail and driving, the combined status of frail and not driving (adjusted HR: 2.28; 95% CI: 1.47 to 3.52) and frail and driving (HR: 1.91; 95% CI: 1.30-2.81) were risk factors for disability. CONCLUSIONS Not driving and frail were associated with a risk of disability in community-dwelling older adults.
Collapse
Affiliation(s)
- Takehiko Doi
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan
| | - Kota Tsutsumimoto
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan
| | - Hideaki Ishii
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan
| | - Sho Nakakubo
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan
| | - Satoshi Kurita
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan
| | - Hiroyuki Shimada
- Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan
| |
Collapse
|
43
|
Ohnuma K, Uchida T, Leung GNW, Ueda T, Obara T, Ishii H. Establishment of a post-race biomarkers database and application of pathway analysis to identify potential biomarkers in post-race equine plasma. Drug Test Anal 2021; 14:915-928. [PMID: 33835667 DOI: 10.1002/dta.3041] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/30/2021] [Accepted: 04/02/2021] [Indexed: 12/30/2022]
Abstract
In the context of doping control, conventional direct chemical testing detects only a limited scope of target substances in equine biological samples. To expand the ability to detect doping agents and their detection windows, metabolomics has recently become a common approach for monitoring alteration of biomarkers caused by doping agents in relevant metabolic pathways. In horse racing, remarkable changes in metabolic profiles between the rest state and racing are likely to affect the identification of doping biomarkers. Previously, we reported a limited number of significantly upregulated metabolites after racing, based on a non-targeted metabolomics approach using out-of-competition and post-race equine plasma samples. In this study, we performed a more thorough analysis of the data set, using pathway analysis to establish a post-race biomarkers database (PBD) that includes upregulated and downregulated metabolites, their fold changes, and relevant pathways, with the main objective of improving our understanding of changes in physiological status related to horse racing. Statistical analysis of the PBD revealed that two peak combinations of pentadecanoyl carnitine/galactosylglycerol (P/G) and heptadecanoyl carnitine/galactosylglycerol (H/G) could be used as potential biomarkers for the discrimination of the rest and post-race groups. To demonstrate the applicability of the PBD, we validated the post-race biomarkers P/G and H/G (highly involved in lipid metabolism) by a single-blind test. This strategy, which combines establishment of a biomarker database with pathway analysis, represents a powerful tool for discovering potential doping biomarkers in the future.
Collapse
Affiliation(s)
- Kohei Ohnuma
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Japan
| | - Taiga Uchida
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Japan
| | - Toshiki Ueda
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Japan.,Bioinformatics Team, Research Laboratory, H. U. Group Research Institute G.K., Hachioji, Japan
| | - Taku Obara
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan
| | - Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, Utsunomiya, Japan.,Department of Pharmaceutical Sciences, Tohoku University Hospital, Sendai, Japan
| |
Collapse
|
44
|
Furutani K, Tobita T, Ishii H, Deguchi H, Mitsuma Y, Kamiya Y, Baba H. Epidural Administration of Ropivacaine Reduces the Amplitude of Transcranial Electrical Motor-Evoked Potentials: A Double-Blinded, Randomized, Controlled Trial. Anesth Analg 2021; 132:1092-1100. [PMID: 33060493 DOI: 10.1213/ane.0000000000005236] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND An epidurally administered local anesthetic acts primarily on the epidural nerve roots and can act directly on the spinal cord through the dural sleeve. We hypothesized that epidurally administered ropivacaine would reduce the amplitude of transcranial electrical motor-evoked potentials by blocking nerve conduction in the spinal cord. Therefore, we conducted a double-blind, randomized, controlled trial. METHODS Thirty adult patients who underwent lung surgery were randomly allocated to 1 of 3 groups, based on the ropivacaine concentration: the 0.2% group, the 0.375% group, and the 0.75% group. The attending anesthesiologists, neurophysiologists, and patients were blinded to the allocation. The epidural catheter was inserted at the T5-6 or T6-7 interspace by a paramedian approach, using the loss of resistance technique with normal saline. General anesthesia was induced and maintained using propofol and remifentanil. Transcranial electrical motor-evoked potentials were elicited by a train of 5 pulses with an interstimulus interval of 2 milliseconds by using a constant-voltage stimulator and were recorded from the tibialis anterior muscle. Somatosensory-evoked potentials (SSEPs) were evoked by electrical tibial nerve stimulation at the popliteal fossa. After measuring the baseline values of these evoked potentials, 10 mL of epidural ropivacaine was administered at the 0.2%, 0.375%, or 0.75% concentration. The baseline amplitudes and latencies recorded before administering ropivacaine were defined as 100%. Our primary end point was the relative amplitude of the motor-evoked potentials at 60 minutes after the epidural administration of ropivacaine. We analyzed the amplitudes and latencies of these evoked potentials by using the Kruskal-Wallis test and used the Dunn multiple comparison test as the post hoc test for statistical analysis. RESULTS The data are expressed as the median (interquartile range). Sixty minutes after epidurally administering ropivacaine, the motor-evoked potential amplitude was lower in the 0.75% group (7% [3%-18%], between-group difference P < .001) and in the 0.375% group (52% [43%-59%]) compared to that in the 0.2% group (96% [89%-105%]). The latency of SSEP was longer in the 0.75% group compared to that in the 0.2% group, but the amplitude was unaffected. CONCLUSIONS Epidurally administered high-dose ropivacaine lowered the amplitude of motor-evoked potentials and prolonged the onset latencies of motor-evoked potentials and SSEPs compared to those in the low-dose group. High-dose ropivacaine can act on the motor pathway through the dura mater.
Collapse
Affiliation(s)
- Kenta Furutani
- From the Department of Anesthesiology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Toshiyuki Tobita
- Department of Anesthesiology, Saiseikai Niigata Hospital, Niigata, Japan
| | - Hideaki Ishii
- Department of Anesthesiology, Nagaoka Chuo General Hospital, Nagaoka City, Japan
| | - Hiroyuki Deguchi
- From the Department of Anesthesiology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Yusuke Mitsuma
- From the Department of Anesthesiology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Yoshinori Kamiya
- From the Department of Anesthesiology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Hiroshi Baba
- From the Department of Anesthesiology, Niigata University Medical and Dental Hospital, Niigata, Japan
| |
Collapse
|
45
|
Makizako H, Shimada H, Tsutsumimoto K, Makino K, Nakakubo S, Ishii H, Suzuki T, Doi T. Physical Frailty and Future Costs of Long-Term Care in Older Adults: Results from the NCGG-SGS. Gerontology 2021; 67:695-704. [PMID: 33780941 DOI: 10.1159/000514679] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 07/02/2020] [Accepted: 01/23/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Frailty is associated with adverse outcomes, but few studies have determined associations between the frailty phenotype and measures of healthcare burden, including long-term care insurance (LTCI) costs, in older community-dwelling populations. OBJECTIVE The aim of this study was to examine the association between frailty status and subsequent LTCI costs in Japanese community-dwelling older adults. METHODS The prospective data were from a cohort study (National Center for Geriatrics and Gerontology-Study of Geriatric Syndromes [NCGG-SGS]). The participants were community-dwelling older adults (mean age 71.8 years, women 50.7%) participating in an NCGG-SGS baseline examination held between August 2011 and February 2012 in Obu, Japan (N = 4,539). At baseline, we assessed the physical frailty phenotype using the Japanese version of the CHS criteria and categorized it as robust, pre-frail, or frail. We also ascertained care-needs certification and total costs using long-term care services in Japan's public LTCI system during the 29 months. RESULTS During the 29-month follow-up period, 239 participants (5.3%) required the LTCI system's care-needs certification and 163 participants (3.6%) used LTCI services. Participants classified as frail (odds ratio 5.85, 95% confidence interval 3.54-9.66) or pre-frail (2.40, 1.58-3.66) at the baseline assessment had an increased risk of requiring care-needs certification compared with robust participants. The mean total costs for LTCI services during the 29 months were ¥6,434 ($63.1) for robust, ¥19,324 ($189.5) for pre-frail, and ¥147,718 ($1,448.2) for frail participants (1 US dollar = 102 Japanese yen in July 2014). There were significantly higher costs associated with advancing frailty status. Individual frailty components (slowness, weakness, exhaustion, low activity, and weight loss) were also associated with higher total costs for using LTCI services. DISCUSSION/CONCLUSION Frail community-dwelling older adults had a higher risk of requiring the LTCI system's care-needs certification and the subsequent total LTCI costs.
Collapse
Affiliation(s)
- Hyuma Makizako
- Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, Kagoshima, Japan.,Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Hiroyuki Shimada
- Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Kota Tsutsumimoto
- Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Keitaro Makino
- Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Sho Nakakubo
- Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Hideaki Ishii
- Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Takao Suzuki
- Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan.,Institute of Gerontology, J.F. Oberlin University, Machida, Japan
| | - Takehiko Doi
- Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan
| |
Collapse
|
46
|
Ishii H, Shibuya M, Leung GNW, Yamashita S, Yamada M, Kushiro A, Kasashima Y, Okada J, Kawasaki K, Kijima-Suda I. Metabolic study of GW1516 in equine urine using liquid chromatography/electrospray ionization Q-Exactive high-resolution mass spectrometry for doping control. Rapid Commun Mass Spectrom 2021; 35:e9028. [PMID: 33319421 DOI: 10.1002/rcm.9028] [Citation(s) in RCA: 3] [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] [Received: 10/28/2020] [Revised: 12/11/2020] [Accepted: 12/12/2020] [Indexed: 06/12/2023]
Abstract
RATIONALE The use of GW1516, a peroxisome proliferator-activated receptor δ (PPAR δ) agonist, is strictly prohibited in both horseracing and equestrian competitions. However, little is known about its metabolic fate in horses. To the best of our knowledge, this is the first reported metabolic study of GW1516 in equine urine. METHODS Urine samples obtained from a thoroughbred after nasoesophageal administration with GW1516 were protein-precipitated and the supernatants were subsequently analyzed by liquid chromatography/electrospray ionization high-resolution mass spectrometry (LC/ESI-HRMS) with a Q-Exactive mass spectrometer. Monoisotopic ions of GW1516 and its metabolites were monitored from the full-scan mass spectral data of pre- and post-administration samples. A quantification method was developed and validated to establish the excretion profiles of GW1516, its sulfoxide, and its sulfone in equine urine. RESULTS GW1516 and its nine metabolites [including GW1516 sulfoxide, GW1516 sulfone, 5-(hydroxymethyl)-4-methyl-2-(4-trifluoromethylphenyl)thiazole (HMTT), methyl 4-methyl-2-[4-(trifluoromethyl)phenyl]-1,3-thiazole-5-carboxylate (MMTC), 4-methyl-2-[4-(trifluoromethyl)phenyl]-1,3-thiazole-5-carboxylic acid (MTTC), and M1 to M4] were detected in post-administration urine samples. GW1516 sulfoxide and GW1516 sulfone showed the longest detection times in post-administration urine samples and were therefore recommended as potential screening targets for doping control purposes. Quantitative analysis was also conducted to establish the excretion profiles of GW1516 sulfoxide and GW1516 sulfone in urine. CONCLUSIONS For the purposes of doping control of GW1516, the GW1516 sulfoxide and GW1516 sulfone metabolites are recommended as the target analytes to be monitored in equine urine due to their high specificities, long detection times (1 and 4 weeks, respectively), and the ready availability of their reference materials.
Collapse
Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Mariko Shibuya
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Shozo Yamashita
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Masayuki Yamada
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Asuka Kushiro
- Equine Research Institute, Research Planning & Coordination Division, JRA, 1400-4, Shiba, Shimotsuke, Tochigi, 329-0412, Japan
| | - Yoshinori Kasashima
- Equine Research Institute, Research Planning & Coordination Division, JRA, 1400-4, Shiba, Shimotsuke, Tochigi, 329-0412, Japan
| | - Jun Okada
- Veterinarian Section, Equine Department, JRA, 6-11-1 Roppongi, Minato-ku, Tokyo, 105-0003, Japan
| | - Kazumi Kawasaki
- Veterinarian Section, Equine Department, JRA, 6-11-1 Roppongi, Minato-ku, Tokyo, 105-0003, Japan
| | - Isao Kijima-Suda
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| |
Collapse
|
47
|
Doi T, Tsutsumimoto K, Ishii H, Nakakubo S, Kurita S, Shimada H. Association between Sarcopenia, Its Defining Indices, and Driving Cessation in Older Adults. J Nutr Health Aging 2021; 25:462-466. [PMID: 33786563 DOI: 10.1007/s12603-020-1554-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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] [Indexed: 12/01/2022]
Abstract
OBJECTIVES Driving a car is essential for older adults to support their activities of daily living and maintain their quality of life. However, physical function - which often declines with age - is a key factor to determine whether older adults can continue driving safely. As such, we sought to examine the association between sarcopenia and driving cessation in older adults. DESIGN A prospective study. SETTING A community setting. PARTICIPANTS We conducted a study including 2,874 older adult participants from the community (mean age: 71.0 ± 4.7 years [range: 65-93 years], women: 36.3%). MEASUREMENTS We assessed whether they were still driving at baseline examination as well as their degree of sarcopenia. Sarcopenia was assessed according to the clinical definition provided by the EWGSOP2 by measuring muscle mass, muscle strength, and physical performance represented by gait speed. Driving cessation was determined based on driving status at the initial visit and at a follow-up examination approximately 15 months later. RESULTS At the baseline assessment, there were 62 participants (2.2%) with confirmed sarcopenia and 23 participants (0.8%) with severe sarcopenia. Participants were classified into either the ongoing driving (n = 2816) or driving cessation (n = 58) group. Low muscle strength and low muscle mass were associated with driving cessation (low muscle strength: odds ratio [OR] 2.09, 95% confidence interval [CI] 1.13-3.87; low muscle mass: OR 2.00, 95% CI 1.04-3.85). Slow gait was not associated with driving cessation (OR 1.35, 95% CI 0.68-2.69). Significantly, sarcopenia was associated with driving cessation (confirmed sarcopenia: OR 4.48, 95% CI 1.63-12.29; severe sarcopenia: OR 4.46, 95% CI 1.21-16.41). CONCLUSIONS Sarcopenia is associated with an increased likelihood of driving cessation in community-dwelling older adults. Evaluation of physical function related to sarcopenia would be useful for judgment of the ability to drive safely among older adults.
Collapse
Affiliation(s)
- T Doi
- Takehiko Doi, Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430, Morioka, Obu, Aichi 474-8511, Japan, Tel: +81-562-44-5651, E-mail:
| | | | | | | | | | | |
Collapse
|
48
|
Ishii H, Leung GNW, Yamashita S, Yamada M, Kushiro A, Kasashima Y, Okada J, Kawasaki K, Kijima-Suda I. Doping control analysis of GW1516 in equine plasma using liquid chromatography/electrospray ionization Q-Exactive high-resolution mass spectrometry. Rapid Commun Mass Spectrom 2020; 34:e8920. [PMID: 32776613 DOI: 10.1002/rcm.8920] [Citation(s) in RCA: 4] [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] [Received: 07/10/2020] [Revised: 08/03/2020] [Accepted: 08/04/2020] [Indexed: 06/11/2023]
Abstract
RATIONALE GW1516 is a peroxisome proliferator-activated receptor-δ agonist in the class of hormones and metabolic modulators. The use of GW1516 is banned in both horseracing and equestrian competitions. To the best of our knowledge, this is the first metabolic study of GW1516 in horses. METHODS After protein precipitation of pre- and post-administration plasma GW1516 samples, the supernatants were analyzed using liquid chromatography/electrospray ionization Q-Exactive high-resolution mass spectrometry to detect GW1516 and its metabolites. Monoisotopic ions of GW1516 and its metabolites were monitored from the full-scan mass spectral data of pre- and post-administration samples. Quantification methods were developed and validated to establish the elimination profiles of GW1516, its sulfoxide, and its sulfone in equine plasma. RESULTS GW1516 and its four metabolites GW1516 sulfoxide, GW1516 sulfone, 5-(hydroxymethyl)-4-methyl-2-(4-trifluoromethylphenyl)thiazole (HMTT), and M1 were detected in post-administration plasma samples. GW1516 sulfoxide, GW1516 sulfone, and HMTT were identified by comparison with their respective reference standards whereas M1 was tentatively identified as 4-methyl-2-[4-(trifluoromethyl)phenyl]-1,3-thiazole-5-carboxylic acid by mass spectral interpretation. GW1516 had the longest detection time in post-administration plasma. The elimination profiles of GW1516, its sulfoxide, and its sulfone in plasma were established. CONCLUSIONS For the purpose of doping control, GW1516 is recommended as the target analyte to be monitored in equine plasma due to its long detection time (around 1 week) and the ready availability of its reference material.
Collapse
Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Gary Ngai-Wa Leung
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Shozo Yamashita
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Masayuki Yamada
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| | - Asuka Kushiro
- Equine Research Institute, Research Planning & Coordination Division, JRA, 1400-4 Shiba, Shimotsuke, Tochigi, 329-0412, Japan
| | - Yoshinori Kasashima
- Equine Research Institute, Research Planning & Coordination Division, JRA, 1400-4 Shiba, Shimotsuke, Tochigi, 329-0412, Japan
| | - Jun Okada
- Veterinarian Section, Equine Department, JRA, 6-11-1 Roppongi, Minato-ku, Tokyo, 105-0003, Japan
| | - Kazumi Kawasaki
- Veterinarian Section, Equine Department, JRA, 6-11-1 Roppongi, Minato-ku, Tokyo, 105-0003, Japan
| | - Isao Kijima-Suda
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
| |
Collapse
|
49
|
Ishii H, Stechman MJ, Watkinson JC, Aspinall S, Kim DS. A Review of Parathyroid Surgery for Primary Hyperparathyroidism from the United Kingdom Registry of Endocrine and Thyroid Surgery (UKRETS). World J Surg 2020; 45:782-789. [PMID: 33263777 PMCID: PMC7851004 DOI: 10.1007/s00268-020-05885-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2020] [Indexed: 01/20/2023]
Abstract
BACKGROUND The United Kingdom Registry of Endocrine and Thyroid Surgeons is a national database holding details on > 28,000 parathyroidectomies. METHODS An extract (2004-2017) of the database was analysed to investigate the reported efficacy, safety and use of intra-operative surgical adjuncts in targeted parathyroidectomy (tPTx) and bilateral neck exploration (BNE) for adult, first-time primary hyperparathyroidism (PHPT). RESULTS 50.9% of 21,738 cases underwent tPTx. Excellent short-term (median follow-up 35 days) post-operative normocalcaemia rates were reported overall (tPTx 96.6%, BNE 94.5%, p < 0.05) and in image-positive cases (tPTx 96.7%, BNE 96%, p < 0.05). Intra-operative PTH improved overall normocalcaemia rates (tPTx 97.8% vs 96.3%, BNE 95% vs 94.4%: both p < 0.05). Intra-operative nerve monitoring reduced vocal cord (VC) dysfunction in image-positive tPTx, but not in BNE (97.8% vs 93.2%, p < 0.05). Complications were higher following BNE (7.4% vs 3.8%, p < 0.05), especially hypocalcaemia (5.3% vs 2%, p < 0.05). There was no difference in rates of subjective dysphonia following tPTx or BNE (2.4% vs 2.3%, p > 0.05), nor any difference in VC dysfunction when formally examined (4.9% vs 4.1%, p > 0.05). CONCLUSIONS In image-positive, first time, adult PHPT cases, tPTx is as safe and effective as BNE, with both achieving excellent short-term results with minimal complications.
Collapse
Affiliation(s)
- H Ishii
- Department of ENT, Head & Neck Surgery, St George's Hospital, Blackshaw Road, Tooting, London, SW17 0QT, UK.
| | - M J Stechman
- Department of Endocrine Surgery, University Hospital Wales, Cardiff, UK
| | - J C Watkinson
- Department of Paediatric Surgery, Great Ormond Street Hospital, London, UK
| | - S Aspinall
- Department of General Surgery, Aberdeen Royal Infirmary, Aberdeen, UK
| | - D S Kim
- Department of ENT, Head & Neck Surgery, St George's Hospital, Blackshaw Road, Tooting, London, SW17 0QT, UK
| |
Collapse
|
50
|
Kaneko M, Kawai K, Nozawa H, Hata K, Tanaka T, Nishikawa T, Shuno Y, Sasaki K, Emoto S, Murono K, Ishii H, Sonoda H, Watadani T, Takao H, Abe O, Ishihara S. Utility of computed tomography and 18 F-fluorodeoxyglucose with positron emission tomography/computed tomography for distinguishing appendiceal mucocele caused by mucinous adenocarcinoma from other pathologies. Colorectal Dis 2020; 22:1984-1990. [PMID: 32780478 DOI: 10.1111/codi.15308] [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: 04/04/2020] [Accepted: 08/04/2020] [Indexed: 02/08/2023]
Abstract
AIM Differentiating appendiceal mucocele with mucinous adenocarcinoma from other pathologies before surgery is difficult. The objective of this study was to evaluate the utility of CT and 18 F-fluorodeoxyglucose (FDG) with positron emission tomography (PET)/CT for differentiating mucinous adenocarcinoma of appendiceal mucocele from other pathologies. METHOD The study included 25 patients who underwent surgery for clinically diagnosed appendiceal mucoceles detected on CT at the University of Tokyo Hospital. Among these patients, 19 underwent FDG-PET/CT preoperatively. We compared features of the CT imaging findings and maximum standard uptake values (SUVmax ) detected by FDG-PET/CT between mucocele with mucinous adenocarcinoma and other pathologies. RESULTS A total of 13 men (52%) and 12 women (48%) were included in this study, with a median age of 65 years (range 34-83). There were six patients (24%) with pathologically confirmed mucinous adenocarcinoma, 15 patients (60%) with appendiceal mucinous neoplasm and four patients (16%) with simple mucocele caused by chronic inflammation. On the CT findings, wall irregularity was the only significant feature for the two groups in this study (83.3% vs 0.0%, P < 0.01). There was a significant difference in the SUVmax levels on PET/CT between the two groups (100.0% vs 20.0%, P < 0.01). CONCLUSION Distinguishing between mucocele with mucinous adenocarcinoma and other pathologies using imaging modalities is challenging. Our results suggest that wall irregularity on CT and elevated SUVmax on PET/CT are useful factors that can be employed for such discrimination.
Collapse
Affiliation(s)
- M Kaneko
- Department of Surgical Oncology, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Japan
| | - K Kawai
- Department of Surgical Oncology, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Japan
| | - H Nozawa
- Department of Surgical Oncology, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Japan
| | - K Hata
- Department of Surgical Oncology, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Japan
| | - T Tanaka
- Department of Surgical Oncology, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Japan
| | - T Nishikawa
- Department of Surgical Oncology, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Japan
| | - Y Shuno
- Department of Surgical Oncology, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Japan
| | - K Sasaki
- Department of Surgical Oncology, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Japan
| | - S Emoto
- Department of Surgical Oncology, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Japan
| | - K Murono
- Department of Surgical Oncology, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Japan
| | - H Ishii
- Department of Surgical Oncology, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Japan
| | - H Sonoda
- Department of Surgical Oncology, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Japan
| | - T Watadani
- Department of Radiology, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Japan
| | - H Takao
- Department of Radiology, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Japan
| | - O Abe
- Department of Radiology, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Japan
| | - S Ishihara
- Department of Surgical Oncology, Faculty of Medicine, University of Tokyo, Bunkyo-ku, Japan
| |
Collapse
|