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Sato M, Sakaguchi K, Takemi Y, Maruyama H. [Attempts for salt reduction in workers through specific food service facility guidance by public health center: A case study at a worksite in Kawagoe City, Saitama Prefecture]. Nihon Koshu Eisei Zasshi 2024. [PMID: 38684416 DOI: 10.11236/jph.23-101] [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] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Objective The Kawagoe City Public Health Center implemented a project to reduce salt intake through specific food service facility guidance in workplace cafeterias. Here, we report the study results.Methods The target worksite was company A, with approximately 270 employees, located in Kawagoe City, Saitama Prefecture. There were 214 participants (approximately 80%). The project was conducted from November 2019 to November 2021. The long-term goal was to decrease the number of hypertensive cases in the city. Project outcomes included decreased salt intake, urinary sodium/potassium ratio, and average blood pressure. The project aimed to improve the cafeteria menu, focusing on salt reduction by offering Smart Meals® and reducing the salt equivalents in all menus. The project output indicators included reduced amount of salt in cafeteria menu items, increased frequency of cafeteria use, increased positive evaluations of the cafeteria, and increased daily awareness of the need for salt reduction. Spot urine samples, blood pressure measurements, and self-administered questionnaire data were collected during annual physical examinations. The amount of salt in the cafeteria menu was evaluated by receiving monthly data from the food service company to which company A outsourced its cafeteria operations.Results The analysis included 102 individuals with complete data from to 2019-2021. Estimated salt intake (g/day) from spot urine decreased from 10.3±2.1 in 2019 to 9.8±2.4 in 2020 and 9.5±2.0 in 2021 (P=0.003). Systolic blood pressure (mmHg) decreased from 114.7±12.5 in 2019 to 111.7±12.1 in 2020 and 110.6±12.0 in 2021 (P=0.010). Compared to 2019, changes in dietary salt equivalents in cafeteria menus in 2020 and 2021decreased for set meals A and B, curries, and noodles (P<0.001).Conclusion We offered Smart Meals® and reduced salt equivalents in all workplace cafeteria menus. After 1-2 years, employees' salt intake and blood pressure levels were lower. These results provide implications for the implementation of food environment improvements in public health centers and other local government agencies to promote the Health Japan 21 (third term) strategy.
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Hayabuchi H, Takemi Y, Ohta M, Sakata I, Sakaguchi K, Kubo A, Yoshita K, Kitaoka K, Okami Y, Ohkubo T, Okamura T, Node K, Miura K. [Development of a new method for assessing the availability of low-sodium foods in Japan]. Nihon Koshu Eisei Zasshi 2024. [PMID: 38556361 DOI: 10.11236/jph.23-094] [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] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Objectives Food environment improvement involving salt reduction requires improving access to and labeling low-sodium foods. Assessing the implementation status of these measures is also necessary. However, to date, no established methods exist for assessing the availability of low-sodium foods in communities. In this study, we aimed to devise a survey on the availability of low-sodium foods as a community food environment assessment method in order to establish common assessment methods, criteria, and practical measures, as well as standardization nationwide.Methods A preliminary survey on the availability of low-sodium foods was conducted in Kitakyushu City in four stores with nationwide representation. Consent for providing information on handled product lists was obtained. The on-site lists collected through direct investigation by surveyors were compared with the handled product lists provided by the stores and analyzed to identify survey challenges and examine feasibility and the potential for accuracy. The definition of low-sodium foods, which emerged as a challenge in the preliminary survey, was confirmed. Preliminary survey data were carefully reviewed to establish classification criteria for low-sodium foods and create a low-sodium food list to serve as a reference for on-site surveys. Forms for recording the results of on-site surveys and a survey manual were developed. Registered dietitians conducted on-site surveys using the manual to confirm its applicability.Results The preliminary survey results revealed that the on-site lists had fewer omissions and greater feasibility than store-provided lists. After clearly defining low-sodium foods, we established classification criteria (three major categories, seven subcategories, and 37 minor categories) considering the ease of on-site investigations and purchases. Three forms for recording survey results were developed, including a standard input form allowing detailed documentation of the availability of individual low-sodium foods, an aggregation form for a quantitative assessment of low-sodium foods availability, and a display form visualizing the availability of low-sodium foods by store. Furthermore, a survey manual was developed explaining the purpose and approach of the low-sodium foods availability survey, definition and classification criteria for low-sodium foods, and the three forms for recording survey results. Findings indicated that all registered dietitians could conduct on-site surveys using the manual and successfully collect and organize data.Conclusion On-site surveys using the manual and documentation forms enabled easy and accurate assessments of low-sodium foods availability. Thus, this standardized method to assess the availability of low-sodium foods could be a food environment assessment method for regional salt reduction initiatives.
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Affiliation(s)
| | | | | | - Ikuko Sakata
- Fukuoka Women's University
- Seinan Jo Gakuin University
| | - Keiko Sakaguchi
- Faculty of Nutrition, Kagawa Nutrition University
- Shukutoku University
| | - Akiko Kubo
- Faculty of Nutrition, Kagawa Nutrition University
| | | | | | | | | | | | - Koichi Node
- Saga University
- The Japanese Society of Hypertension
| | - Katsuyuki Miura
- Shiga University of Medical Science
- The Japanese Society of Hypertension
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H, Jeffers L, Jenkins A, Jesky M, Jesus-Silva J, Jeyarajah D, Jiang Y, Jiao X, Jimenez G, Jin B, Jin Q, Jochims J, Johns B, Johnson C, Johnson T, Jolly S, Jones L, Jones L, Jones S, Jones T, Jones V, Joseph M, Joshi S, Judge P, Junejo N, Junus S, Kachele M, Kadowaki T, Kadoya H, Kaga H, Kai H, Kajio H, Kaluza-Schilling W, Kamaruzaman L, Kamarzarian A, Kamimura Y, Kamiya H, Kamundi C, Kan T, Kanaguchi Y, Kanazawa A, Kanda E, Kanegae S, Kaneko K, Kaneko K, Kang HY, Kano T, Karim M, Karounos D, Karsan W, Kasagi R, Kashihara N, Katagiri H, Katanosaka A, Katayama A, Katayama M, Katiman E, Kato K, Kato M, Kato N, Kato S, Kato T, Kato Y, Katsuda Y, Katsuno T, Kaufeld J, Kavak Y, Kawai I, Kawai M, Kawai M, Kawase A, Kawashima S, Kazory A, Kearney J, Keith B, Kellett J, Kelley S, Kershaw M, Ketteler M, Khai Q, Khairullah Q, Khandwala H, Khoo KKL, Khwaja A, Kidokoro K, Kielstein J, Kihara M, Kimber C, Kimura S, Kinashi H, Kingston H, Kinomura M, Kinsella-Perks E, Kitagawa M, Kitajima M, Kitamura 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Effects of empagliflozin on progression of chronic kidney disease: a prespecified secondary analysis from the empa-kidney trial. Lancet Diabetes Endocrinol 2024; 12:39-50. [PMID: 38061371 PMCID: PMC7615591 DOI: 10.1016/s2213-8587(23)00321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Sodium-glucose co-transporter-2 (SGLT2) inhibitors reduce progression of chronic kidney disease and the risk of cardiovascular morbidity and mortality in a wide range of patients. However, their effects on kidney disease progression in some patients with chronic kidney disease are unclear because few clinical kidney outcomes occurred among such patients in the completed trials. In particular, some guidelines stratify their level of recommendation about who should be treated with SGLT2 inhibitors based on diabetes status and albuminuria. We aimed to assess the effects of empagliflozin on progression of chronic kidney disease both overall and among specific types of participants in the EMPA-KIDNEY trial. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA), and included individuals aged 18 years or older with an estimated glomerular filtration rate (eGFR) of 20 to less than 45 mL/min per 1·73 m2, or with an eGFR of 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher. We explored the effects of 10 mg oral empagliflozin once daily versus placebo on the annualised rate of change in estimated glomerular filtration rate (eGFR slope), a tertiary outcome. We studied the acute slope (from randomisation to 2 months) and chronic slope (from 2 months onwards) separately, using shared parameter models to estimate the latter. Analyses were done in all randomly assigned participants by intention to treat. EMPA-KIDNEY is registered at ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and then followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroups of eGFR included 2282 (34·5%) participants with an eGFR of less than 30 mL/min per 1·73 m2, 2928 (44·3%) with an eGFR of 30 to less than 45 mL/min per 1·73 m2, and 1399 (21·2%) with an eGFR 45 mL/min per 1·73 m2 or higher. Prespecified subgroups of uACR included 1328 (20·1%) with a uACR of less than 30 mg/g, 1864 (28·2%) with a uACR of 30 to 300 mg/g, and 3417 (51·7%) with a uACR of more than 300 mg/g. Overall, allocation to empagliflozin caused an acute 2·12 mL/min per 1·73 m2 (95% CI 1·83-2·41) reduction in eGFR, equivalent to a 6% (5-6) dip in the first 2 months. After this, it halved the chronic slope from -2·75 to -1·37 mL/min per 1·73 m2 per year (relative difference 50%, 95% CI 42-58). The absolute and relative benefits of empagliflozin on the magnitude of the chronic slope varied significantly depending on diabetes status and baseline levels of eGFR and uACR. In particular, the absolute difference in chronic slopes was lower in patients with lower baseline uACR, but because this group progressed more slowly than those with higher uACR, this translated to a larger relative difference in chronic slopes in this group (86% [36-136] reduction in the chronic slope among those with baseline uACR <30 mg/g compared with a 29% [19-38] reduction for those with baseline uACR ≥2000 mg/g; ptrend<0·0001). INTERPRETATION Empagliflozin slowed the rate of progression of chronic kidney disease among all types of participant in the EMPA-KIDNEY trial, including those with little albuminuria. Albuminuria alone should not be used to determine whether to treat with an SGLT2 inhibitor. FUNDING Boehringer Ingelheim and Eli Lilly.
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Ryder M, Sabarai A, Saccà C, Sachson R, Sadler E, Safiee NS, Sahani M, Saillant A, Saini J, Saito C, Saito S, Sakaguchi K, Sakai M, Salim H, Salviani C, Sammons E, Sampson A, Samson F, Sandercock P, Sanguila S, Santorelli G, Santoro D, Sarabu N, Saram T, Sardell R, Sasajima H, Sasaki T, Satko S, Sato A, Sato D, Sato H, Sato H, Sato J, Sato T, Sato Y, Satoh M, Sawada K, Schanz M, Scheidemantel F, Schemmelmann M, Schettler E, Schettler V, Schlieper GR, Schmidt C, Schmidt G, Schmidt U, Schmidt-Gurtler H, Schmude M, Schneider A, Schneider I, Schneider-Danwitz C, Schomig M, Schramm T, Schreiber A, Schricker S, Schroppel B, Schulte-Kemna L, Schulz E, Schumacher B, Schuster A, Schwab A, Scolari F, Scott A, Seeger W, Seeger W, Segal M, Seifert L, Seifert M, Sekiya M, Sellars R, Seman MR, Shah S, Shah S, Shainberg L, Shanmuganathan M, Shao F, Sharma K, Sharpe C, Sheikh-Ali M, Sheldon J, Shenton C, Shepherd A, Shepperd M, Sheridan R, Sheriff Z, Shibata Y, Shigehara T, Shikata K, Shimamura K, Shimano H, Shimizu Y, Shimoda H, Shin K, Shivashankar G, Shojima N, Silva R, Sim CSB, Simmons K, Sinha S, Sitter T, Sivanandam S, Skipper M, Sloan K, Sloan L, Smith R, Smyth J, Sobande T, Sobata M, Somalanka S, Song X, Sonntag F, Sood B, Sor SY, Soufer J, Sparks H, Spatoliatore G, Spinola T, Squyres S, Srivastava A, Stanfield J, Staplin N, Staylor K, Steele A, Steen O, Steffl D, Stegbauer J, Stellbrink C, Stellbrink E, Stevens W, Stevenson A, Stewart-Ray V, Stickley J, Stoffler D, Stratmann B, Streitenberger S, Strutz F, Stubbs J, Stumpf J, Suazo N, Suchinda P, Suckling R, Sudin A, Sugamori K, Sugawara H, Sugawara K, Sugimoto D, Sugiyama H, Sugiyama H, Sugiyama T, Sullivan M, Sumi M, Suresh N, Sutton D, Suzuki H, Suzuki R, Suzuki Y, Suzuki Y, Suzuki Y, Swanson E, Swift P, Syed S, Szerlip H, Taal M, Taddeo M, Tailor C, Tajima K, Takagi M, Takahashi K, Takahashi K, Takahashi M, Takahashi T, Takahira E, Takai T, Takaoka M, Takeoka J, Takesada A, Takezawa M, Talbot M, Taliercio J, Talsania T, Tamori Y, Tamura R, Tamura Y, Tan CHH, Tan EZZ, Tanabe A, Tanabe K, Tanaka A, Tanaka A, Tanaka N, Tang S, Tang Z, Tanigaki K, Tarlac M, Tatsuzawa A, Tay JF, Tay LL, Taylor J, Taylor K, Taylor K, Te A, Tenbusch L, Teng KS, Terakawa A, Terry J, Tham ZD, Tholl S, Thomas G, Thong KM, Tietjen D, Timadjer A, Tindall H, Tipper S, Tobin K, Toda N, Tokuyama A, Tolibas M, Tomita A, Tomita T, Tomlinson J, Tonks L, Topf J, Topping S, Torp A, Torres A, Totaro F, Toth P, Toyonaga Y, Tripodi F, Trivedi K, Tropman E, Tschope D, Tse J, Tsuji K, Tsunekawa S, Tsunoda R, Tucky B, Tufail S, Tuffaha A, Turan E, Turner H, Turner J, Turner M, Tuttle KR, Tye YL, Tyler A, Tyler J, Uchi H, Uchida H, Uchida T, Uchida T, Udagawa T, Ueda S, Ueda Y, Ueki K, Ugni S, Ugwu E, Umeno R, Unekawa C, Uozumi K, Urquia K, Valleteau A, Valletta C, van Erp R, Vanhoy C, Varad V, Varma R, Varughese A, Vasquez P, Vasseur A, Veelken R, Velagapudi C, Verdel K, Vettoretti S, Vezzoli G, Vielhauer V, Viera R, Vilar E, Villaruel S, Vinall L, Vinathan J, Visnjic M, Voigt E, von-Eynatten M, Vourvou M, Wada J, Wada J, Wada T, Wada Y, Wakayama K, Wakita Y, Wallendszus K, Walters T, Wan Mohamad WH, Wang L, Wang W, Wang X, Wang X, Wang Y, Wanner C, Wanninayake S, Watada H, Watanabe K, Watanabe K, Watanabe M, Waterfall H, Watkins D, Watson S, Weaving L, Weber B, Webley Y, Webster A, Webster M, Weetman M, Wei W, Weihprecht H, Weiland L, Weinmann-Menke J, Weinreich T, Wendt R, Weng Y, Whalen M, Whalley G, Wheatley R, Wheeler A, Wheeler J, Whelton P, White K, Whitmore B, Whittaker S, Wiebel J, Wiley J, Wilkinson L, Willett M, Williams A, Williams E, Williams K, Williams T, Wilson A, Wilson P, Wincott L, Wines E, Winkelmann B, Winkler M, Winter-Goodwin B, Witczak J, Wittes J, Wittmann M, Wolf G, Wolf L, Wolfling R, Wong C, Wong E, Wong HS, Wong LW, Wong YH, Wonnacott A, Wood A, Wood L, Woodhouse H, Wooding N, Woodman A, Wren K, Wu J, Wu P, Xia S, Xiao H, Xiao X, Xie Y, Xu C, Xu Y, Xue H, Yahaya H, Yalamanchili H, Yamada A, Yamada N, Yamagata K, Yamaguchi M, Yamaji Y, Yamamoto A, Yamamoto S, Yamamoto S, Yamamoto T, Yamanaka A, Yamano T, Yamanouchi Y, Yamasaki N, Yamasaki Y, Yamasaki Y, Yamashita C, Yamauchi T, Yan Q, Yanagisawa E, Yang F, Yang L, Yano S, Yao S, Yao Y, Yarlagadda S, Yasuda Y, Yiu V, Yokoyama T, Yoshida S, Yoshidome E, Yoshikawa H, Young A, Young T, Yousif V, Yu H, Yu Y, Yuasa K, Yusof N, Zalunardo N, Zander B, Zani R, Zappulo F, Zayed M, Zemann B, Zettergren P, Zhang H, Zhang L, Zhang L, Zhang N, Zhang X, Zhao J, Zhao L, Zhao S, Zhao Z, Zhong H, Zhou N, Zhou S, Zhu D, Zhu L, Zhu S, Zietz M, Zippo M, Zirino F, Zulkipli FH. Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial. Lancet Diabetes Endocrinol 2024; 12:51-60. [PMID: 38061372 DOI: 10.1016/s2213-8587(23)00322-4] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The EMPA-KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62-0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16-1·59), representing a 50% (42-58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). INTERPRETATION In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. FUNDING Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council.
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Sakaguchi K, Takemi Y, Hayashi F, Akamatsu R. [Relationship between the dietary behavior targets of Health Japan 21 (second term) and perceived food environment and health literacy]. Nihon Koshu Eisei Zasshi 2023; 70:3-15. [PMID: 36058875 DOI: 10.11236/jph.22-031] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective The interim evaluation of Health Japan 21(second term), a national health promotion plan, suggested that improvements in the food environment did not lead to improvements in individual dietary habits. The present study aimed to evaluate the relationship between the dietary behavior targets of Health Japan 21 (second term) and perceived food environment and health literacy.Method We conducted an online cross-sectional survey in March 2019 among adults aged 20-64 years. From the 9,667 registered monitors of the research firm, we collected 2,851 responses (29.5% response rate). The perceived food environment (how people perceive the local food environment) was estimated using the following six questions, namely, availability: easy access to nutritionally balanced meals, accessibility: no inconvenience in daily shopping, affordability: access to nutritionally balanced meals at reasonable prices, accommodation: easy access to food services within business hours, acceptability: satisfaction with the quality of food ingredients, and another form of acceptability: adequate food safety. Health literacy was evaluated using five questions related to information gathering, information selection, information transfer, information judgment, and self-determination. Last, we asked the respondents about two dietary behaviors, namely, the frequency of a balanced diet (defined as comprising the staple food, a main dish, and a side dish) and the quantity of vegetable intake, along with sociodemographic information. The analysis included 2,111 respondents, excluding those whose socioeconomic status was unknown. Multiple logistic regression analyses were performed to determine the relationship between perceived food environment and health literacy on dietary behaviors, while adjusting for sociodemographic factors.Result A balanced diet was associated with the following perceptions of the food environment: "access to nutritionally balanced meals at reasonable prices" (adjusted odds ratio [95% confidence interval] = 1.37 [1.02, 1.82]; women), and "adequate food safety" (1.54 [1.19, 1.98]; men), and health literacy: "information gathering" (0.84 [0.73,0.97]; men) and "self-determination" (1.28 [1.10,1.50], 1.37 [1.14,1.63]; men, women). The quantity of vegetable intake was associated with the following perceptions of the food environment: "easy access to nutritionally balanced meals" (1.54 [1.15,2.06]; men), and "no inconvenience in daily shopping" (1.55 [1.12,2.15]; women), and health literacy: "information transfer" (1.30 [1.10,1.54]; men), and "self-determination" (1.67 [1.38,2.02]; women)).Conclusion To achieve a balanced diet and increased vegetable intake in a population, it is necessary to promote both the acquisition of a higher level of "self-determination" (rather than "information gathering") in health literacy and the creation of a heathy food environment.
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Affiliation(s)
| | | | - Fumi Hayashi
- Faculty of Nutrition, Kagawa Nutrition University
| | - Rie Akamatsu
- Faculty of Core Research, Natural Science Division, Ochanomizu University
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Kawano K, Sakaguchi K, Ninpetch N, Yanagawa Y, Katagiri S. 157 Effects of high temperature within physiological range on the amino acid metabolism of. Reprod Fertil Dev 2022. [DOI: 10.1071/rdv35n2ab157] [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: 12/11/2022] Open
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Sakaguchi K, Watari T. Primary central nervous system lymphoma in an underdiagnosed HIV case. QJM 2022; 115:476-477. [PMID: 35587160 DOI: 10.1093/qjmed/hcac123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- K Sakaguchi
- General Medicine Center, Shimane University Hospital, Shimane, Japan
| | - T Watari
- General Medicine Center, Shimane University Hospital, Shimane, Japan and Department of Medicine, University of Michigan Medical School, Ann Arbor, MI, USA.
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Akaiwa Y, Hayashi F, Sakaguchi K, Takemi Y. [Changes in dietary behaviors and food-related accessibility issues and information needs during the COVID-19 pandemic: comparison based on household economic status]. Nihon Koshu Eisei Zasshi 2022; 69:3-16. [PMID: 34719538 DOI: 10.11236/jph.21-057] [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] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective This study aimed to assess the household income changes during COVID-19 pandemic among Japanese adults, and to evaluate how this was related to changes in dietary behaviors and food-related accessibility issues and information needs during the emergency period.Method We conducted an online cross-sectional survey in July, 2020 among residents (aged 20-69 years) of the 13 prefectures under special confinement during the COVID-19 pandemic. Participants were asked about their dietary behaviors before the pandemic (before February 2020) and during the confinement period (April-May 2020), as well as about their food-related accessibility issues and information needs during the confinement period. Data from 2,225 residents were analyzed. Participants were divided into three groups (decreased, unchanged, and increased) based on the household income changes due to COVID-19. Demographics, dietary behaviors, and food-related accessibility issues and information needs were then compared among these three groups. Multiple logistic regression analyses were performed to examine the effect of household income changes on dietary behavior changes, food-related accessibility issues, and food-related information needs, while adjusting for sociodemographic factors. Furthermore, the effect of household income changes and subjective economic status were also analyzed using multiple logistic regression analyses.Result The participant distribution in each group were as follows: decreased (34.6%), unchanged (63.9%), and increased (1.6%). Higher proportion of those who were employed part-time, self-employed, or unemployed during the confinement period were found among the decreased group. The odds ratios (OR) of the decreased group were significantly higher than the unchanged group for lower frequency of eating out, and for higher frequency of home-cooking, consuming ready-to-eat convenience meals, and eating with children during the confinement period. Furthermore, regardless of the subjective economic status, the decreased group experienced difficulties in accessing required foods because of shortages and congestion in grocery stores, as well as increased prices. Additionally, food-related information needs regarding reduction of food expenses were also high among the decreased group.Conclusion Participants with a decreased household income were more likely to experience difficulties with food accessibility and desire information about lowering food-related expenses. Furthermore, they reported lower frequency of eating out, and higher frequency of home-cooking and consuming ready-to-eat convenience meals during the confinement period than before the pandemic. Future studies should evaluate the direction (positive or negative) of these changed food consumption patterns.
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Affiliation(s)
- Yuki Akaiwa
- Graduate School of Kagawa Nutrition University
| | | | | | - Yukari Takemi
- Graduate School of Kagawa Nutrition University
- Nutrition Ecology, Kagawa Nutrition University
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Koiwai K, Takemi Y, Hayashi F, Ogata H, Sakaguchi K, Akaiwa Y, Shimada M, Kawabata T, Nakamura M. [Consumption of ultra-processed foods and relationship between nutrient intake and obesity among participants undergoing specific health checkups provided by National Health Insurance]. Nihon Koshu Eisei Zasshi 2021; 68:105-117. [PMID: 33390509 DOI: 10.11236/jph.20-044] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Objective Obesity associated with an increased consumption of ultra-processed foods (UPF) has been reported by studies abroad using the NOVA food classification system, an international framework for classifying food according to the degree of processing. However, no such study has been conducted in Japan. In this study, we evaluated the association between UPF consumption, nutrient intake, and obesity using the NOVA system.Method In September 2017, we conducted a survey using a questionnaire of patients who had attended routine health checkups in Manazuru Town, Kanagawa Prefecture and collected their three-day dietary records as well as medical examination results. The final analysis included 169 patients (66 men, 103 women). Food consumed by the respondents were classified into four groups of NOVA systems. The dietary share of UPF (UPF energy ratio) was compared to total energy intake (except alcoholic beverages and eating out). Nutrient intake and obesity risk were compared across the UPF energy ratio tertile (low, middle, and high intake). Covariance and logistic regression analysis were conducted and adjusted based on age, sex, household structure, education, income, and total energy intake (except energy-providing nutrients, macronutrients, and protein intake per body weight) to analyze the association between UPF consumption and nutrient intake. Finally, for obesity, we adjusted for physical activity and smoking status using a similar analysis of the relationship between UPF consumption and energy providing nutrients and macronutrients.Result Approximately 75% of patients investigated were older than 65 years. The average (standard deviation) UPF energy ratio was 29.7% (15.0). There were no significant differences in socioeconomic status among groups according to the UPF energy ratio. The high-UPF group had a significantly greater total energy intake. However, the protein energy ratio, protein intake per body weight, dietary fiber, and vitamins A, E, K, B1, B6, C, niacin, folic acid, potassium, magnesium, and iron intake were significantly lower in the high-UPF group. Moreover, the high-UPF group had a significantly higher BMI. The odds ratio for obesity was higher (4.51[1.50-13.57]) in the high-UPF group than in the low-UPF group (1.00).Conclusion Those who consumed more UPF had lower protein intake and suffered from multiple vitamin and mineral deficiencies. Furthermore, their energy intake was greater, and the odds ratio for obesity was significantly higher. It has been suggested that excessive UPF consumption warrants further attention.
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Affiliation(s)
| | | | | | | | | | - Yuki Akaiwa
- Graduate School of Kagawa Nutrition University
| | - Masako Shimada
- Health Promotion Research Center, Japan Association for Development of Community Medicine
| | - Teruko Kawabata
- Health Promotion Research Center, Japan Association for Development of Community Medicine
| | - Masakazu Nakamura
- Health Promotion Research Center, Japan Association for Development of Community Medicine
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Sakaguchi K, Takemi Y, Hayashi F, Koiwai K, Nakamura M. Effect of workplace dietary intervention on salt intake and sodium-to-potassium ratio of Japanese employees: A quasi-experimental study. J Occup Health 2021; 63:e12288. [PMID: 34731526 PMCID: PMC8565653 DOI: 10.1002/1348-9585.12288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 09/27/2021] [Accepted: 10/20/2021] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVES Excess salt intake is a major risk factor for hypertension and cardiovascular disease. Modifying workplace environments has been recognized to be important for reducing salt intake. However, studies examining the effects of improving the workplace environment regarding salt reduction are limited. This study aimed to evaluate the effects of workplace dietary intervention on employees' salt intake and sodium-to-potassium (Na/K) ratio. METHODS A quasi-experimental study was conducted. Two small business establishments in Saitama Prefecture, Japan, were allocated as the intervention (n = 69) and comparison (n = 68) workplaces, respectively. The 1-year intervention involving healthy lunch and nutrition education was implemented in the intervention workplace. Spot urine samples, physical assessments, and self-administered questionnaire data were collected at baseline, 6 months, and 1 year after the start of the intervention. Analysis of covariance was conducted to investigate differences in the salt intake or Na/K ratio between the study workplaces at year 1. Educational status and rotating work schedules were included as covariates. RESULTS Salt intake in the intervention workplace decreased significantly from 10.7 to 9.3 g (-1.4 g change; 95% confidence interval [CI]: "-2.4, -0.5"). The adjusted difference in changes in salt intake between workplaces was statistically significant (-3.7 g change; 95% CI: "-5.2, -2.3"). Although no significant change was observed in the Na/K ratio in the intervention workplace (3.37-3.08; -0.29 change; 95% CI: "-0.59, 0.01"), the adjusted difference in changes between the workplaces was statistically significant (-0.60 change; 95% CI: "-1.03, -0.17"). CONCLUSIONS Providing healthy lunch and nutrition education may be effective approaches to reduce employees' salt intake and Na/K ratio.
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Affiliation(s)
| | - Yukari Takemi
- Nutrition EcologyKagawa Nutrition UniversitySakado‐shiJapan
| | - Fumi Hayashi
- Nutrition EcologyKagawa Nutrition UniversitySakado‐shiJapan
| | - Kaori Koiwai
- Public Health NutritionKagawa Nutrition UniversitySakado‐shiJapan
| | - Masakazu Nakamura
- Health Promotion Research CenterInstitute of Community MedicineJapan Association for Development of Community MedicineChiyoda kuJapan
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Kawano K, Sakaguchi K, Furukawa E, Chelenga M, Yanagawa Y, Katagiri S. 85 The effects of heat exposure on the growth and developmental competence of oocytes derived from early antral follicles in dairy cows. Reprod Fertil Dev 2021. [DOI: 10.1071/rdv33n2ab85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Summer heat stress in dairy cows impairs the developmental competence of oocytes from antral follicles (2–8mm) which are used in conventional IVM and IVF systems. Moreover, summer heat stress is considered to impair the oocyte competence derived from smaller follicles; therefore, the impairment of oocyte competence possibly continues into the cooler autumn season. To investigate the thermosensitivity of early antral follicles (<1mm), we evaluated the effects of heat exposure on the growth and developmental competence of oocytes using invitro culture of oocyte–cumulus-granulosa complexes (OCGCs) derived from early antral follicles. OCGCs (n=315) were collected from early antral follicles (0.5–1mm) and cultured for 12 days. OCGCs in the heat shock group were cultured using a temperature cycle of 38.5°C for 5h, 39.5°C for 5h, 40.5°C for 5h, and 39.5°C for 9h, whereas those in the control group were cultured at a constant temperature of 38.5°C for 24h. The diameters of oocytes were measured before culture. Half of the culture medium was replaced every 4 days. Oestradiol-17β (E2) and progesterone (P4) production during the first, second, and third 4-day periods were measured by enzyme immunoassay; the viability of OCGCs was evaluated based on their morphology. Oocytes that survived after 12 days of culture (n=191) were subjected to IVM (38.5°C, 22h); their diameter and nuclear status were evaluated. Some oocytes (n=71) were subjected to IVF (38.5°C, 18h) and embryo culture (39.0°C, 150h). Cleavage and blastocyst rates were evaluated at 48h and 168h after IVF. Effects of treatment groups and culture periods on E2 and P4 production and diameters of oocytes were evaluated by two-way ANOVA followed by Tukey-Kramer or Student’s t-test. The viability of OCGCs, nuclear maturation, cleavage and blastocyst rates between two groups were compared by the chi-squared or Fisher’s exact test. E2 and P4 production and the viability of OCGCs were not different between the 2 groups. Although mean oocyte diameters before culture did not differ between the 2 groups, the mean diameters after IVM were significantly smaller in the heat shock group (108.0µm, n=56) than in the control group (111.7µm, n=61; P<0.05). The nuclear maturation rate in the heat shock group (36.4%, n=55) was significantly lower than in the control group (60.3%, n=58; P<0.05). Cleavage rates were similar between the control (54.5%, n=33) and heat shock groups (45.7%, n=35). However, no oocytes developed to blastocysts in the heat shock group (0%, n=35), whereas 30.3% (n=33) oocytes developed to blastocysts (cell number±s.d.; 92.4±28.4) in the control group (P<0.05). These findings suggest that summer heat stress in dairy cows impairs the growth, nuclear maturation, and developmental competence of oocytes derived from early antral follicles. This experimental model could be used to explore the mechanisms by which heat stress subsequently impairs oocyte competence during the cooler autumn season.
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Komada H, Hirota Y, So A, Nakamura T, Okuno Y, Fukuoka H, Iguchi G, Takahashi Y, Sakaguchi K, Ogawa W. Insulin secretion and sensitivity before and after surgical treatment for aldosterone-producing adenoma. Diabetes Metab 2019; 46:236-242. [PMID: 31676325 DOI: 10.1016/j.diabet.2019.10.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 09/22/2019] [Accepted: 10/14/2019] [Indexed: 11/16/2022]
Abstract
AIM Primary aldosteronism, which is usually caused by an aldosterone-producing tumour, affects glucose metabolism. The effects of this condition on insulin secretion and insulin sensitivity have remained unclear, however. To gain insight into the influence of primary aldosteronism on glucose tolerance, various parameters related to insulin secretion or insulin sensitivity in patients with an aldosterone-producing tumour were comprehensively analyzed. METHODS To assess 14 patients with an aldosterone-producing tumour, hyperglycaemic and hyperinsulinaemic-euglycaemic clamp tests as well as oral glucose tolerance tests (OGTTs) were performed before and after tumour excision. Time between presurgical analysis and surgery was 27-559 (194±132) days, and 14-142 (51±38) days between surgery and postsurgical analysis. Various parameters related to insulin secretion or sensitivity as determined by OGTT as well as hyperglycaemic and hyperinsulinaemic-euglycaemic clamp analyses were evaluated. RESULTS Surgical treatment of tumours ameliorated hypokalaemia and reduced plasma aldosterone levels. First and second phases of insulin secretion during the hyperglycaemic clamp, as well as the insulinogenic index and total insulin secretion measured during OGTT, were also improved after surgery. In addition, the insulin sensitivity index determined during the hyperinsulinaemic-euglycaemic clamp was reduced after surgery. CONCLUSION Primary aldosteronism impairs insulin secretion.
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Affiliation(s)
- H Komada
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Y Hirota
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan.
| | - A So
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - T Nakamura
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Y Okuno
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - H Fukuoka
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - G Iguchi
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Y Takahashi
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - K Sakaguchi
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - W Ogawa
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
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Sakaguchi K, Nakatsukasa K, Koyama H, Matsuda T, Kato M, Ouchi Y, Morita M, Taguchi T. Effect of denosumab on low bone mineral density in postmenopausal Japanese early breast cancer patients receiving aromatase nhibitors: 36-month results. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz240.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Tamura Y, Santo M, Araki Y, Matsubayashi H, Takaya Y, Doshida M, Sakaguchi K, Yamaguchi K, Mizuta S, Kim N, Okuno K, Kitaya K, Takeuchi T, Ishikawa T. 29. CHROMOSOMAL COPY NUMBER ANALYSIS OF CHORIONIC VILLUS FROM SPONTANEOUS ABORTION BY NEXT GENERATION SEQUENCING. Reprod Biomed Online 2019. [DOI: 10.1016/j.rbmo.2019.04.082] [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: 10/26/2022]
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Abdel-Ghani MA, Yanagawa Y, Balboula AZ, Sakaguchi K, Kanno C, Katagiri S, Takahashi M, Nagano M. Astaxanthin improves the developmental competence of in vitro-grown oocytes and modifies the steroidogenesis of granulosa cells derived from bovine early antral follicles. Reprod Fertil Dev 2019; 31:272-281. [DOI: 10.1071/rd17527] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 06/29/2018] [Indexed: 12/22/2022] Open
Abstract
In this study we investigated the effect of astaxanthin (Ax), which exhibits strong antioxidant activity, during invitro growth (IVG) on the developmental competence of oocytes and steroidogenesis of granulosa cells derived from early antral follicles. Bovine oocyte–cumulus–granulosa complexes collected from early antral follicles were cultured for 12 days in the presence or absence (control) of 500µM Ax. The viability of oocytes and antrum formation in the granulosa cell layer during IVG culture were greater in the presence than absence of Ax (P<0.05). Regardless of Ax treatment, 17β-oestradiol production increased during IVG culture; however, progesterone production was significantly lower in the presence than absence of Ax (P<0.05). Reactive oxygen species levels were lower in Ax-treated oocytes than in controls after IVG (P<0.05). Although nuclear maturation and cleavage rates did not differ between the Ax-treated and control groups, Ax treatment led to weaker cathepsin B activity in oocytes and better blastocyst rates than in controls (P<0.05). Accordingly, Ax treatment during IVG increased the total number of cells in blastocysts (P<0.05). These results indicate that Ax supplementation of IVG medium improves the quality of bovine oocytes due to its antioxidative effects on growing oocytes and its suppression of the luteinisation of granulosa cells.
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Sakaguchi K, Yanagawa Y, Yoshioka K, Suda T, Kawano K, Katagiri S, Nagano M. 120 Effects of antral follicle count in ovaries on follicular development and endocrine dynamics of follicle-stimulating hormone and steroid hormones in cattle. Reprod Fertil Dev 2019. [DOI: 10.1071/rdv31n1ab120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The antral follicle count (AFC) in mammalian ovaries positively correlates with female fertility. We have reported previously that cumulus-oocyte complexes derived from high-AFC ovaries produce more oestradiol-17β (E2) and have higher developmental competence than those from low-AFC ovaries in in vitro growth (Sakaguchi et al. WCRB2017, Okinawa, Japan; 1-15). We also indicated that follicular growth was different between high- and low-AFC cows, and that follicular deviation occurred earlier in high-AFC cows (Nagai et al. 2015 Anim. Reprod. Sci. 163, 172-178). To clarify the causes of the higher E2 production and earlier follicular deviation in high-AFC cows, we investigated circulating steroid hormones and FSH during the oestrous cycle, as well as steroidogenesis in follicles at different phases of the oestrous cycle. Four high-AFC cows (>40 follicles) and 3 low-AFC cows (<20 follicles) based on the peak AFC were used. We ablated their follicles 8 days after oestrus and administered prostaglandin F2α on Day 12. After 40h of prostaglandin F2α injection, follicular fluid of a dominant follicle (preovulatory phase) was collected and subordinate follicles were ablated. Gonadotropin-releasing hormone was then injected to induce LH surge. Seven days after gonadotropin-releasing hormone, follicular fluids were collected from dominant follicles (luteal phase) and all follicles were ablated. Four days later, follicular fluids were again collected from the largest follicles (selection phase). Steroid hormones in follicular fluids were measured by enzyme immunoassay. Throughout the study, we daily examined ovaries by ultrasonography and collected blood for hormone measurements. We analysed data using two-way ANOVA followed by Tukey-Kramer or Student’s t test. The number of small follicles (<4mm) was greater in high-AFC than low-AFC groups (low v. high=7.6v. 46.9; P<0.05), whereas that of large follicles (>8mm) was similar between groups (0.8v. 0.8) at any time. Although the number of medium-sized follicles (4-8mm) was not affected in the low-AFC group (4.2-6.7) after follicle ablation, the number increased from 1 to 4 days (10.5 to 17.8) then decreased 6 days after follicle ablation (11.5) in the high-AFC group, which means that degradation of follicles occurs at selection phase in high-AFC cows. Peripheral FSH concentration was higher (low v. high: 4.7v. 2.1 ng/mL), but E2 concentration was lower in the low-AFC (2.4 pg/mL) than high-AFC group (3.3 pg/mL) during the selection phase (P<0.05). Although follicular diameter was similar in both groups at any phase, E2 (low v. high=333.8v. 1127.4 ng/mL; P<0.05) and testosterone (low v. high=16.7v. 35.0 ng/mL; P=0.07), but not progesterone, concentrations were higher in the high-AFC than low-AFC group in the preovulatory phase. These findings suggest that a lower response to FSH causes low E2 production in the low-AFC group, resulting in high FSH concentration and a consistent development of medium-sized follicles. Conversely, higher E2 concentration suppresses FSH secretion, resulting in obvious degradation of follicles in the high-AFC group at the selection phase.
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Sakaguchi K, Nakatsukasa K, Taguchi T. Phase II clinical trial of first-line eribulin plus trastuzumab for advanced or recurrent HER2-positive breast cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy272.302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Takeuchi T, Saito C, Mizuta S, Yamaguchi K, Takaya Y, Doshida M, Sakaguchi K, Kitaya K, Matsubayashi H, Ishikawa T. How many attempts should we undergo ICSI with ejaculated sperm in virtual azoospermic patients? Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Usuba A, Miyazawa M, Motoki R, Sakaguchi K, Suzuki K, Kamitani T, Takahashi A. Oxygen Transport Capacity and Hemodynamic Effect of Newly Developed Artificial Blood “Neo Red Cells (NRC)”. Int J Artif Organs 2018. [DOI: 10.1177/039139889301600709] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
The purpose of this study was to evaluate liposome-encapsulated hemoglobin, named Neo Red Cells (NRC), on hemodynamics and oxygen-transport capacity in a blood exchange experiment. The experiment was carried out in nine mongrel dogs. Depending on the percentage of blood exchange with NRC, the animals were divided into two groups; Group I (4 animals with an exchange rate less than 88%), and Group II (5 animals with an exchange rate over 88%). After blood exchange, total peripheral vascular resistance index (TPRI) decreased and cardiac index (CI) increased. These changes were more marked in Group II than in Group I, thus showing that NRC relieved the burden on the heart, probably due to the fact that the viscosity of NRC is 2 cp which is less than 1/3 that of whole blood. The oxygen binding capacity per 1g hemoglobin in NRC was 2-4 times as much as red blood cells. Thus, NRC was superior to natural red blood cells in terms of oxygen transport capacity and its effects on the circulatory system.
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Affiliation(s)
- A. Usuba
- First Department of Surgery, Fukushima Medical College, Fukushima City
| | - M. Miyazawa
- First Department of Surgery, Fukushima Medical College, Fukushima City
| | - R. Motoki
- First Department of Surgery, Fukushima Medical College, Fukushima City
| | - K. Sakaguchi
- Technical R & D Division, Terumo Corp, Kanagawa - Japan
| | - K. Suzuki
- Technical R & D Division, Terumo Corp, Kanagawa - Japan
| | - T. Kamitani
- Technical R & D Division, Terumo Corp, Kanagawa - Japan
| | - A. Takahashi
- Technical R & D Division, Terumo Corp, Kanagawa - Japan
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20
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Oki R, Kondoh C, Miura Y, Ozaki Y, Tanabe Y, Sakaguchi K, Kurosawa K, Urakami S, Okaneya T, Takano T. S-1 plus cisplatin combination therapy in patients with urachal carcinoma: A retrospective study. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx661.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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21
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Villasante A, Sakaguchi K, Kim J, Cheung N, Nakayama M, Parsa H, Okano T, Shimizu T, Vunjak-Novakovic G. Vascularized Tissue-Engineered Model for Studying Drug Resistance in Neuroblastoma. Am J Cancer Res 2017; 7:4099-4117. [PMID: 29158813 PMCID: PMC5695000 DOI: 10.7150/thno.20730] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 08/11/2017] [Indexed: 01/26/2023] Open
Abstract
Neuroblastoma is a vascularized pediatric tumor derived from neural crest stem cells that displays vasculogenic mimicry and can express a number of stemness markers, such as SOX2 and NANOG. Tumor relapse is the major cause of succumbing to this disease, and properties attributed to cancer stem-like cells (CSLC), such as drug-resistance and cell plasticity, seem to be the key mechanisms. However, the lack of controllable models that recapitulate the features of human neuroblastoma limits our understanding of the process and impedes the development of new therapies. In response to these limitations, we engineered a perfusable, vascularized in vitro model of three-dimensional human neuroblastoma to study the effects of retinoid therapy on tumor vasculature and drug-resistance. METHODS The in vitro model of neuroblastoma was generated using cell-sheet engineering and cultured in a perfusion bioreactor. Firstly, we stacked three cell sheets containing SKNBE(2) neuroblastoma cells and HUVEC. Then, a vascular bed made of fibrin, collagen I and HUVEC cells was placed onto a collagen-gel base with 8 microchannels. After gelling, the stacked cell sheets were placed on the vascular bed and cultured in the perfusion bioreactor (perfusion rate: 0.5 mL/min) for 4 days. Neuroblastoma models were treated with 10μM isotretionin in single daily doses for 5 days. RESULTS The bioengineered model recapitulated vasculogenic mimicry (vessel-like structure formation and tumor-derived endothelial cells-TECs), and contained CSLC expressing SOX2 and NANOG. Treatment with Isotretinoin destabilized vascular networks but failed to target vasculogenic mimicry and augmented populations of CSLCs expressing high levels of SOX2. Our results suggest that CSLCs can transdifferentiate into drug resistant CD31+-TECs, and reveal the presence of an intermediate state STEC (stem tumor-derived endothelial cell) expressing both SOX2 and CD31. CONCLUSION Our results reveal some roles of SOX2 in drug resistance and tumor relapse, and suggest that SOX2 could be a therapeutic target in neuroblastoma.
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Takahashi H, Inoue J, Sakaguchi K, Takagi M, Mizutani S, Inazawa J. Autophagy is required for cell survival under L-asparaginase-induced metabolic stress in acute lymphoblastic leukemia cells. Oncogene 2017; 36:4267-4276. [PMID: 28346428 PMCID: PMC5537607 DOI: 10.1038/onc.2017.59] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [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] [Received: 09/20/2016] [Revised: 01/31/2017] [Accepted: 02/07/2017] [Indexed: 12/18/2022]
Abstract
L-asparaginase has been used for more than three decades in acute lymphoblastic leukemia (ALL) patients and remains an essential drug in the treatment of ALL. Poor response to L-asparaginase is associated with increased risk of therapeutic failure in ALL. However, both the metabolic perturbation and molecular context of L-asparaginase-treated ALL cells has not been fully elucidated. Here we identify that treatment with L-asparaginase results in metabolic shutdown via the reduction of both glycolysis and oxidative phosphorylation, accompanied by mitochondrial damage and activation of autophagy. The autophagy is involved in reducing reactive oxygen species (ROS) level by eliminating injured mitochondria. Inhibition of autophagy enhances L-asparaginase-induced cytotoxicity and overcomes the acquired resistance to L-asparaginase in ALL cells. The ROS-p53-positive feedback loop is an essential mechanism of this synergistic cytotoxicity. Thus, our findings provide the rationale for the future development of combined treatment of L-asparaginase and anti-autophagy drug in ALL patients.
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Affiliation(s)
- H Takahashi
- Department of Molecular Cytogenetics, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Department of Pediatrics, Hamamatsu University School of Medicine, Shizuoka, Japan.,Bioresource Research Center, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - J Inoue
- Department of Molecular Cytogenetics, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Bioresource Research Center, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - K Sakaguchi
- Department of Pediatrics, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - M Takagi
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - S Mizutani
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - J Inazawa
- Department of Molecular Cytogenetics, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Bioresource Research Center, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Sakaguchi K, Takemi Y. [Status and challenges related to creating a healthy food environment: a questionnaire survey for public health dieticians]. Nihon Koshu Eisei Zasshi 2017; 64:734-744. [PMID: 29311529 DOI: 10.11236/jph.64.12_734] [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] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objectives Creating a healthy food environment is crucial for healthful longevity in Japan. This study aimed to provide an overview of the status and challenges related to creating that environment through prefectural public health centers.Methods Public health dieticians working at 489 prefectural public health centers in March 2015 individually completed an anonymous self-administered questionnaire. Berelson's content analysis was utilized for response analysis.Results Data from 359 (response rate: 74.3%) prefectural public health centers, involving 599 public health dieticians, were included in the analysis. More than 80% of the prefectural public health centers implemented a registration system for dining facilities such as restaurants. Furthermore, greater than 80% of the public health dietitians thought that creating a healthy food environment was an important aspect of their work mission. On the other hand, more than 50% of these dieticians expressed dissatisfaction in their role. In terms of evaluation, the public health centers only monitored the number of registered facilities, with few other evaluations conducted. Approximately 80% of the participants requested national guidelines and/or some legal support from the Ministry of Health, Labor, and Welfare and/or the prefectural administration.Conclusion This study demonstrated that there are challenges related to creating a healthy food environment through prefectural health centers. Improving the evaluation methods and government/administrative provision of national guidelines and/or legal supports were identified as courses of action.
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Affiliation(s)
| | - Yukari Takemi
- Nutrition Ecology, Graduate School of Kagawa Nutrition University
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Sakaguchi K, Nevarez JG, Del Piero F. Salmonella Enterica Serovar Pomona Infection in Farmed Juvenile American Alligators (Alligator Mississippiensis). Vet Pathol 2016; 54:316-319. [DOI: 10.1177/0300985816677149] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A fatal epizootic of salmonellosis occurred in farmed juvenile American alligators in Louisiana. Six animals were examined. Gross lesions included severe fibrinonecrotizing enterocolitis, necrotizing splenitis, coelomic effusion, and perivisceral and pulmonary edema. Microscopic examination revealed severe necrotizing enterocolitis and splenitis with intralesional bacteria and pneumocyte necrosis with fibrin thrombi. Salmonella enterica serovar Pomona was isolated from intestine and lung. Clinical salmonellosis is a rare finding in reptiles and salmonellosis caused by S. Pomona is not previously reported in American alligators. Since S. Pomona is a commonly isolated Salmonella serotype from patients with reptile-associated salmonellosis in the United States, and since alligator meat is consumed and the skin is exported to numerous countries, risk of human and animal infection should be considered.
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Affiliation(s)
- K. Sakaguchi
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA
| | - J. G. Nevarez
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA
| | - F. Del Piero
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA
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Iguchi T, Inoue D, Tatsukawa M, Yabushita K, Sakaguchi K, Kanazawa S. Transpulmonary radiofrequency ablation of hepatocellular carcinoma contiguous to the heart. Diagn Interv Imaging 2015; 96:1207-9. [PMID: 26277644 DOI: 10.1016/j.diii.2015.06.016] [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: 06/01/2015] [Revised: 06/13/2015] [Accepted: 06/15/2015] [Indexed: 11/16/2022]
Affiliation(s)
- T Iguchi
- Department of Diagnostic and Interventional Radiology, Fukuyama City Hospital, 5-23-1 Zao-cho, Fukuyama 721-8511, Japan; Department of Radiology, Okayama University Medical School, 2-5-1 Shikata-cho, Okayama 700-8558, Japan.
| | - D Inoue
- Department of Diagnostic and Interventional Radiology, Fukuyama City Hospital, 5-23-1 Zao-cho, Fukuyama 721-8511, Japan.
| | - M Tatsukawa
- Department of Internal Medicine, Fukuyama City Hospital, 5-23-1 Zao-cho, Fukuyama 721-8511, Japan.
| | - K Yabushita
- Department of Internal Medicine, Fukuyama City Hospital, 5-23-1 Zao-cho, Fukuyama 721-8511, Japan.
| | - K Sakaguchi
- Department of Internal Medicine, Fukuyama City Hospital, 5-23-1 Zao-cho, Fukuyama 721-8511, Japan.
| | - S Kanazawa
- Department of Radiology, Okayama University Medical School, 2-5-1 Shikata-cho, Okayama 700-8558, Japan.
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Sugiyama T, Yoshioka H, Sakaguchi K, Kim YT, Oda H. An evidence-based perspective on vitamin D and the growing skeleton. Osteoporos Int 2015; 26:1447-8. [PMID: 25448838 DOI: 10.1007/s00198-014-2975-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 11/19/2014] [Indexed: 10/24/2022]
Affiliation(s)
- T Sugiyama
- Department of Orthopaedic Surgery, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan,
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Kuroda M, Shinke T, Sakaguchi K, Otake H, Hirota Y, Hariki H, Nakagawa M, Inoue T, Osue T, Hirata K. Daily glucose profile has an impact on coronary plaque character in patients with coronary artery disease. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p4292] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sakaguchi K, Yokota H, Miyasho T, Maeda N, Nakamura K, Onaga T, Koiwa M, Matsuda K, Okamoto M, Hirayama K, Taniyama H. Polymeric immunoglobulin receptor expression and local immunoglobulin A production in bovine sublingual, submandibular and parotid salivary glands. Vet J 2013; 197:291-6. [PMID: 23395346 DOI: 10.1016/j.tvjl.2012.12.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 11/12/2012] [Accepted: 12/21/2012] [Indexed: 01/23/2023]
Abstract
The submandibular and parotid glands are the main sources of immunoglobulins A (IgAs) in human and rat saliva. These glands express the polymeric immunoglobulin receptor (pIgR), which transports IgAs into saliva. The main source of IgAs in saliva and pIgR expression in salivary glands has not been well documented in cattle. Expressions of pIgR were determined in the major bovine salivary glands (sublingual, submandibular, and parotid) by RT-PCR for mRNA and by Western blot analysis and immunohistochemistry (IHC) using an anti-human pIgR antibody for protein. The protein detected with the antibody was identified by nano-liquid chromatography-quadrupole time of flight mass spectrometry. Additionally, the distribution of Ig-producing plasma cells was analyzed by IHC. RT-PCR showed that pIgR was expressed in the sublingual and submandibular glands, but not in the parotid gland. Higher protein levels were observed in sublingual glands than in submandibular glands by Western blot. By IHC, pIgR was mainly located on the apical side of the cytoplasmic membrane in the sublingual gland, whereas it was observed only on the basal side in the submandibular gland. The highest density of plasma cells expressing IgAs was observed in the sublingual gland. These results suggest that the sublingual gland plays an important role in first-line defence of the oral cavity in cattle in contrast to humans and rats.
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Affiliation(s)
- K Sakaguchi
- Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido 069-8501, Japan
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Hama R, Jones M, Okushima H, Kitao M, Noda N, Hayashi K, Sakaguchi K. Oseltamivir and early deterioration leading to death: a proportional mortality study for 2009A/H1N1 influenza. Int J Risk Saf Med 2012; 23:201-15. [PMID: 22156085 DOI: 10.3233/jrs-2011-0545] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To examine the epidemiological association between sudden deterioration leading to death and Tamiflu use. DESIGN Proportional mortality study. SETTING Japan. PARTICIPANTS 162 deaths without deterioration before the first consultation among all 198 deaths of mostly confirmed 2009A/H1N1 influenza. POPULATION AT RISK: Age-specific population of influenza patients prescribed Tamiflu and Relenza. MAIN OUTCOME MEASURE Age-stratified pooled odds ratio (OR) for early (within 12 hours) deterioration and overall death of Tamiflu prescribed to Relenza prescribed patients. RESULTS Of 119 deaths after Tamiflu was prescribed, 38 deteriorated within 12 hours (28 within 6 hours), while of 15 deaths after Relenza, none deteriorated within 12 hours. Pooled OR for early deterioration and overall death were 5.88 (95% CI: 1.30 to 26.6, p = 0.014) and 1.91 (p = 0.031) respectively. Baseline characteristics including risk factors did not contribute to early deterioration after Tamiflu use. CONCLUSIONS These data suggest Tamiflu use could induce sudden deterioration leading to death especially within 12 hours of prescription. These findings are consistent with sudden deaths observed in a series of animal toxicity studies, several reported case series and the results of prospective cohort studies. From "the precautionary principle" the potential harm of Tamiflu should be taken into account and further detailed studies should be conducted.
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Affiliation(s)
- Rokuro Hama
- Non-profit Organization Japan Institute of Pharmacovigilance (Kusuri-no-Check), Osaka, Japan.
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Ando M, Sakaguchi K, Yasuda M, Uesaka T, Kim HT, Kawahara A. Atrium contributes to osmoregulation in eels acclimated to sea water. Zoolog Sci 2012; 17:301-6. [PMID: 18494582 DOI: 10.2108/jsz.17.301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/1999] [Accepted: 10/14/1999] [Indexed: 11/17/2022]
Abstract
Since highly concentrated NaCl is suspected to enter into the heart of the seawater eels, effects of high NaCl concentration on the atrial beating was examined, and plasma ion concentrations and osmolality were measured simultaneously in the blood collected from the bulbus arteriosus and from the caudal vessels. When 100 mmole l(-1) NaCl was added to the incubation medium, atrial contraction was enhanced significantly. Similar enhancement in the atrial contractility was also observed after addition of NaCH3SO4 (100 mmole l(-1)) or Tris HCl (100 mmole l(-1)), indicating that Na(+) and Cl(-) are not indispensable for the positive inotropic effect. Furthermore, an addition of sucrose (200 mmole l(-1)) also enhanced the contraction. Inversely, hypoosmotic solution reduced the atrial contraction. These results indicate that the eel atrium is sensitive to environmental osmolarity. The eel atrium responses even at 20 mmole l(-1) sucrose. Such an inotropic effect of sucrose was not depressed after blocking adrenoceptor with betaxolol, a beta1-adrenoceptor antagonist, indicating that the effect is not due to adrenaline release from nerve endings. Plasma osmolality and Na(+) concentration were higher in bulbus arteriosus than in caudal vessels, indicating that the eel heart is really exposed to hyperosmotic blood in sea water. The osmotically enhanced atrial contraction may increase the cardiac outflow into the gill. Such property of the atrium would have clear advantages for seawater teleosts, since the concentrated NaCl from the esophagus can be excreted immediately through the gill, without circulating their body, and blood homeostasis can be maintained efficiently.
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Shimizu T, Okamoto I, Kurata T, Fujisaka Y, Tsurutani J, Nomura M, Minami T, Sakaguchi K, Ohnishi R, Chang J, Hase Y, Nakagawa K. Required Capabilities and Infrastructure for Japanese Phase I Institutes: From the Experience of Early Phase Drug Development Operation at Phase I Centers in United States. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32137-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Sakaguchi K, Nagatsuma T, Ogawa T, Obara T, Troshichev OA. Ionospheric Pc5 plasma oscillations observed by the King Salmon HF radar and their comparison with geomagnetic pulsations on the ground and in geostationary orbit. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011ja016923] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Gomi T, Nakajima M, Fujiwara H, Takeda T, Saito K, Umeda T, Sakaguchi K. Comparison between chest digital tomosynthesis and CT as a screening method to detect artificial pulmonary nodules: a phantom study. Br J Radiol 2012; 85:e622-9. [PMID: 22422390 DOI: 10.1259/bjr/12643098] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES The objective of this study was to evaluate the imaging capabilities of chest digital tomosynthesis (DT) as a screening method for the detection of artificial pulmonary nodules, and to compare its efficiency with that of CT. METHODS DT and CT were used to detect artificial pulmonary nodules (5 mm and 8 mm in diameter, ground-glass opacities) placed in a chest phantom. Using a three-dimensional filtered back-projection algorithm at acquisition angles of 8°, 20°, 30° and 40°, DT images of the desired layer thicknesses were reconstructed from the image data acquired during a single tomographic scan. Both standard and sharp CT reconstruction kernels were used, and the detectability index (DI) valves computed for both the DT scan acquisition angles and CT reconstruction kernel types were considered. For the observer study, we examined 50 samples of artificial pulmonary nodules using both DT and CT imaging. On the basis of evaluations made by five thoracic radiologists, a jackknife free-response receiver operating characteristic (JAFROC) study was performed to compare and assess the differences in detection accuracy between CT and DT imaging. RESULTS For each increased acquisition angle, DI obtained by DT imaging was similar to that obtained by CT imaging. The difference in the observer-averaged JAFROC figure of merit for the five readings was 0.0363 (95% confidence interval: -0.18, 0.26; F=0.101; p=0.75). CONCLUSION With the advantages of a decreased radiation dose and the practical accessibility of examination, DT may be a useful alternative to CT for the detection of artificial pulmonary nodules.
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Affiliation(s)
- T Gomi
- School of Allied Health Sciences, Kitasato University, Sagamihara, Kanagawa, Japan.
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Iguchi T, Inoue D, Yabushita K, Sakaguchi K, Tatsukawa M, Sasaki H, Kanazawa S. Effect of CT fluoroscopy-guided transpulmonary radiofrequency ablation of liver tumours on the lung. Br J Radiol 2012; 85:e373-7. [PMID: 22374277 DOI: 10.1259/bjr/34646739] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE We retrospectively evaluated the effect of transpulmonary radiofrequency ablation (RFA) of liver tumours on the lung. METHODS 16 patients (10 males and 6 females; mean age, 65.2 years) with 16 liver tumours (mean diameter 1.5 cm) underwent transpulmonary RFA under CT fluoroscopic guidance. The tumours were either hepatocellular carcinoma (n=14) or liver metastasis (n=12). All 16 liver tumours were undetectable with ultrasonography. The pulmonary function values at 3 months after transpulmonary RFA were compared with baseline (i.e. values before RFA). RESULTS In 8 of 16 sessions, minor pulmonary complications occurred, including small pneumothorax (n=8) and small pleural effusion (n=1). In two sessions, major pulmonary complications occurred, including pneumothorax requiring a chest tube (n=2). These chest tubes were removed at 4 and 6 days, and these patients were discharged 7 and 10 days after RFA, respectively, without any sequelae. The pulmonary function values we evaluated were forced expiratory volume in 1 s (FEV1.0) and vital capacity (VC). The mean values of FEV1.0 before and 3 months after RFA were 2.55 l and 2.59 l, respectively; the mean values of VC before and 3 months after RFA were 3.20 l and 3.27 l, respectively. These pulmonary values did not show any significant worsening (p=0.393 and 0.255 for FEV1.0 and VC, respectively). CONCLUSION There was no significant lung injury causing a fatal or intractable complication after transpulmonary RFA of liver tumours.
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Affiliation(s)
- T Iguchi
- Department of Diagnostic and Interventional Radiology, Fukuyama City Hospital, Fukuyama, Japan.
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Lavigne O, Takeda Y, Shoji T, Sakaguchi K. Water irradiation by high-frequency ultrasonic wave: effects on properties of passive film formed on stainless steel. Ultrason Sonochem 2011; 18:1287-94. [PMID: 21555231 DOI: 10.1016/j.ultsonch.2011.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2011] [Revised: 04/05/2011] [Accepted: 04/15/2011] [Indexed: 05/12/2023]
Abstract
In this paper an aqueous solution was irradiated with a 1.63MHz ultrasonic wave. It is shown that if stainless steel can passivate under dynamic polarization in this medium, under static polarization, the latter does not show any repassivation behaviour with time. This is attributed to a diminution of the diffusion layer thickness that is developed at the electrode/electrolyte interface, which is associated with a production of H(2) species by sonolysis and which maintains reductive conditions at the interface. The oxide film formed under ultrasonic irradiation for 1h at a passive potential of+0.2V(SCE) shows an early stage of passivation and an increased disordered state, which implies a considerable decrease in the corrosion resistance behaviour of the sample. The polarization resistance of the stainless steel R(p) is divided by a value of 4.5 under ultrasonic conditions.
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Affiliation(s)
- O Lavigne
- Fracture and Reliability Research Institute, Faculty of Engineering, Tohoku University, Aramaki Aoba 6-6-11-717, Aoba-ku, Sendai 980-8579, Japan.
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Takaki A, Tatsukawa M, Iwasaki Y, Koike K, Noguchi Y, Shiraha H, Sakaguchi K, Nakayama E, Yamamoto K. Hepatitis C virus NS4 protein impairs the Th1 polarization of immature dendritic cells. J Viral Hepat 2010; 17:555-62. [PMID: 19804500 PMCID: PMC2916225 DOI: 10.1111/j.1365-2893.2009.01213.x] [Citation(s) in RCA: 10] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Dendritic cells (DCs) in chronic hepatitis C patients display impaired function, although the details remain unclear. To investigate the hepatitis C virus (HCV) protein that has the most impact on DC function, we compared five recombinant proteins and seven HCV protein genes in modulating DC phenotype and function. Immature DCs (iDCs) were established from healthy donor peripheral blood monocytes with granulocyte-macrophage colony stimulating factor (GM-CSF) and IL-4. Lipopolysaccharide was used to establish mature DCs (mDCs). Cells were then pulsed with HCV recombinant proteins or transfected with HCV plasmids and subsequently assayed for cell surface marker expression by flow cytometry. For cytokine and proliferative T-cell response analysis, DCs were cultured with autologous CD4 T cells and tuberculin purified protein derivative (PPD). Mean fluorescent intensity of CD86 was reduced in HCV protein-pulsed iDCs. Proliferative T-cell responses and Th1 cytokine concentrations were reduced with HCV nonstructural proteins (NS), particularly with HCV NS4. HCV nonstructural proteins, particularly NS4, change the iDC phenotype and reduce antigen-specific T-cell stimulatory function with Th1 cytokine reductions.
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Affiliation(s)
- A Takaki
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - M Tatsukawa
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - Y Iwasaki
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - K Koike
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - Y Noguchi
- Departments of Immunology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - H Shiraha
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - K Sakaguchi
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - E Nakayama
- Departments of Immunology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - K Yamamoto
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
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Takakusagi K, Takakusagi Y, Ohta K, Aoki S, Sugawara F, Sakaguchi K. A sulfoglycolipid beta-sulfoquinovosyldiacylglycerol ( SQDG) binds to Met1-Arg95 region of murine DNA polymerase lambda (Mmpol ) and inhibits its nuclear transit. Protein Eng Des Sel 2009; 23:51-60. [DOI: 10.1093/protein/gzp064] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ohta K, Mori Y, Ishima M, Murata H, Sugawara F, Sakaguchi K, Miura M. Sulfoquinovocylacylglycerol (SQAG) is a Novel Potent Antiangiogenic Radiosensitizer. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.1298] [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]
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Hirota Y, Ogawa W, Murawaki A, Nishiumi T, Komada H, Miyake K, Sakaguchi K, Kasuga M. Deterioration of glycaemic control associated with anti-insulin antibodies likely induced by health supplements. Diabet Med 2009; 26:948-51. [PMID: 19719720 DOI: 10.1111/j.1464-5491.2009.02779.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fujiwara I, Nakajima H, Mizuta N, Sakaguchi K, Hachimine Y. Video-assisted skin-sparing breast-conserving surgery for breast cancer and immediate reconstruction with autologous tissue: Clinical outcomes. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e11580] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e11580 Background: This study analyzed clinical results of video-assisted breast-conserving surgery for breast cancer. Methods: Video-assisted breast-conserving surgery is indicated for breast cancer that has not invaded the skin. A skin incision is made at an inconspicuous site. Skin-sparing partial mastectomy was performed endoscopically on 244 patients (stage I, n=94; stage II, n=150). Morbidity, curability and patient satisfaction were analyzed. Results: Skin necrosis was seen in 9 patients. Local recurrence was seen in 13 patients (mean postoperative interval, 65.3 months). Distant metastasis-free survival at 60 months was 93.6% for stage I and 90.5% for stage II. Overall survival was 95.7% for stage I and 96.9% for stage II. Satisfaction with surgery as investigated by questionnaire was “good” for 72.3% of patients. Conclusions: Video-assisted breast-conserving surgery showed no increases in local or distant recurrence and patient satisfaction was high. Video-assisted breast-conserving surgery appears useful for local treatment of breast cancer. No significant financial relationships to disclose.
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Affiliation(s)
- I. Fujiwara
- Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - H. Nakajima
- Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - N. Mizuta
- Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - K. Sakaguchi
- Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Y. Hachimine
- Kyoto Prefectural University of Medicine, Kyoto, Japan
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Kaminuma T, Karasawa K, Chang T, Hanyu N, Kuga G, Maesawa N, Sakaguchi K, Harada M, Yamamoto M, Horio H. Three Dimensional Non-coplanar Conformal Radiation Therapy for Stage I Non-small Cell Lung Cancer Comparison with Cases Treated with Limited Surgery. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.1833] [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: 10/21/2022]
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Mizuno O, Kawamoto H, Fukatsu H, Harada R, Tsutsumi K, Fujii M, Kurihara N, Nakanishi T, Ogawa T, Ishida E, Okada H, Sakaguchi K. An iatrogenic hepatic subcapsular biloma successfully treated by percutaneous drainage and endoscopic biliary stenting. Endoscopy 2008; 40 Suppl 2:E42-3. [PMID: 18300200 DOI: 10.1055/s-2007-966852] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- O Mizuno
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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Sakaguchi K, Tohnai N, Watabe T, Hisaki I, Miyata M. Hierarchical structural analysis of supramolecular isomers of organic crystalline host compounds. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308080124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Sakaguchi K, Kawasaki T, Nakagawa T, Araki O, Kanayama T, Kawashima T. Spaciostructural analyses of mandibular and perioral soft tissue movements during mastication. J Oral Rehabil 2008. [DOI: 10.1111/j.1365-2842.2001.00751.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fujiwara I, Nakajima H, Mizuta N, Sakaguchi K, Hachimine Y. Prognosis of Japanese breast cancer based on hormone receptor and HER2 expression determined by immunohistochemical staining. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.1122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Sakaguchi K, Hiramatsu K, Horio H, Yamamoto M, Takahashi K, Kawakita M. N1,N12-Diacetylspermine as a tumor marker for non-small cell lung cancers (NSCLC). J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.11089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Nakajima H, Mizuta N, Sakaguchi K, Fujiwara I, Yoshimori A, Takasawa R, Tanuma S. Development of her2-antagonistic peptides as novel anti-breast cancer drugs by in silico methods. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.14014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Mizuta N, Nakajima H, Fujiwara I, Sakaguchi K, Hachimine Y. Endoscopic skin-sparing breast-conserving surgery for breast cancer and immediate reconstruction with autologous tissue. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Kakinuma M, Coury DA, Nakamoto C, Sakaguchi K, Amano H. Molecular analysis of physiological responses to changes in nitrogen in a marine macroalga, Porphyra yezoensis (Rhodophyta). Cell Biol Toxicol 2008; 24:629-39. [DOI: 10.1007/s10565-007-9053-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2007] [Accepted: 12/20/2007] [Indexed: 10/22/2022]
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Odano I, Sakaguchi K, Hosoya T, Varrone A, Savic I, Halldin C, Farde L. Automated system for parametric image analysis in neuroreceptor binding studies with PET. Neuroimage 2008. [DOI: 10.1016/j.neuroimage.2008.04.047] [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: 10/21/2022] Open
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