Kenta Murotani

Dr. Kenta Murotani

Kurume University School of Medicine
orcid

Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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4 December 2020 in Nutrients
Verified
Journal Article
Open access
PDF file
Tatsuro InoueTatsuro Inoue
Tatsuro Inoue
KMKeisuke Maeda
Keisuke Maeda
NANagano Ayano
Nagano Ayano
ASAkio Shimizu
Akio Shimizu
JUJunko Ueshima
Junko Ueshima
ATAtsuhiro Tsubaki
Atsuhiro Tsubaki
Geriatric patients with hip fractures often experience overlap in problems related to nutrition, including undernutrition, sarcopenia, and frailty. Such problems are powerful predictors of adverse responses, although few healthcare professionals are aware of them and therefore do not implement effective interventions. This review aimed to summarize the impact of undernutrition, sarcopenia, and frailty on clinical outcomes in elderly individuals with hip fractures and identify successful strategies that integrate nutrition and rehabilitation. We searched PubMed (MEDLINE) and Cochrane Central Register of Controlled Trials (CENTRAL) for relevant literature published over the last 10 years and found that advanced interventions targeting the aforementioned conditions helped to significantly improve postoperative outcomes among these patients. Going forward, protocols from advanced interventions for detecting, diagnosing, and treating nutrition problems in geriatric patients with hip fractures should become standard practice in healthcare settings.

18 May 2020 in Scientific Reports
Verified
Journal Article
Open access
NSNaoki Saji
Naoki Saji
KMKenta Murotani
Kenta Murotani
THTakayoshi Hisada
Takayoshi Hisada
TKTadao Kunihiro
Tadao Kunihiro
TTTsuyoshi Tsuduki
Tsuyoshi Tsuduki
TSTakashi Sakurai
Takashi Sakurai
Dysregulation of the gut microbiome is associated with dementia. However, the relationship between microbiome-associated metabolites and dementia has yet to be identified. Outpatients visiting a memory clinic in Japan enrolled in this cross-sectional study; 107 subjects were eligible for the study, 25 of which had dementia. We collected demographics, activities of daily living, risk factors, cognitive function, and brain imaging data. The gut microbiome was assessed using terminal restriction fragment length polymorphism analysis. Concentrations of faecal metabolite were measured. We used multivariable logistic regression analyses to identify whether metabolites were independently related to dementia. The concentrations of metabolites were significantly different between subjects with and those without dementia. Every 1 standard deviation increment in faecal ammonia concentration was associated with around a 1.6-fold risk for the presence of dementia. A higher faecal lactic acid concentration was related to a lower risk of dementia, by around 60%. A combination of higher faecal ammonia and lactic acid concentrations was indicative of the presence of dementia, and had a similar predictive value as traditional biomarkers of dementia. Thus, faecal ammonia and lactic acid are related to dementia, independently of the other risk factors for dementia and dysregulation of the gut microbiome.

20 January 2021 in Nutrients
Verified
Journal Article
Open access
PDF file
Tatsuro InoueTatsuro Inoue
Tatsuro Inoue
KMKeisuke Maeda
Keisuke Maeda
NANagano Ayano
Nagano Ayano
ASAkio Shimizu
Akio Shimizu
JUJunko Ueshima
Junko Ueshima
ATAtsuhiro Tsubaki
Atsuhiro Tsubaki
Osteopenia/osteoporosis and sarcopenia are common geriatric diseases among older adults and harm activities of daily living (ADL) and quality of life (QOL). Osteosarcopenia is a unique syndrome that is a concomitant of both osteopenia/osteoporosis and sarcopenia. This review aimed to summarize the related factors and clinical outcomes of osteosarcopenia to facilitate understanding, evaluation, prevention, treatment, and further research on osteosarcopenia. We searched the literature to include meta-analyses, reviews, and clinical trials. The prevalence of osteosarcopenia among community-dwelling older adults is significantly higher in female (up to 64.3%) compared to male (8–11%). Osteosarcopenia is a risk factor for death, fractures, and falls based on longitudinal studies. However, the associations between osteosarcopenia and many other factors have been derived based on cross-sectional studies, so the causal relationship is not clear. Few studies of osteosarcopenia in hospitals have been conducted. Osteosarcopenia is a new concept and has not yet been fully researched its relationship to clinical outcomes. Longitudinal studies and high-quality interventional studies are warranted in the future.

1 April 2015 in Surgery
Verified
Journal Article
Closed access
Tsutomu FujiiTsutomu Fujii
Tsutomu Fujii
ANAkimasa Nakao
Akimasa Nakao
SYSuguru Yamada
Suguru Yamada
MSMasaya Suenaga
Masaya Suenaga
MHMasashi Hattori
Masashi Hattori
YKYasuhiro Kodera
Yasuhiro Kodera

26 December 2022 in Nutrients
Verified
Journal Article
Open access
PDF file
Tatsuro InoueTatsuro Inoue
Tatsuro Inoue
JUJunko Ueshima
Junko Ueshima
FKFumiya Kawase
Fumiya Kawase
HKHaruko Kobayashi
Haruko Kobayashi
NANagano Ayano
Nagano Ayano
KMKeisuke Maeda
Keisuke Maeda
Interventions for stroke-related sarcopenia in patients with stroke are needed, but the details of the target population are unclear. This systematic review aimed to identify trajectories of the prevalence of sarcopenia in the pre- and post-stroke periods and to determine the diagnostic criteria used in patients with stroke. We searched for literature in six databases: MEDLINE, EMBASE, Web of Science, Cochrane Central Register of Controlled Trials, CINAHL, and Ichushi-web (in Japanese). We included 1627 studies in the primary screening, and 35 studies were finally included. Of the 35 studies, 32 (91.4%) included Asian patients, and the criteria of the Asian Working Group for Sarcopenia was mainly used as the diagnostic criteria. Nineteen studies used muscle strength and muscle mass to diagnose sarcopenia, whereas a full assessment, including physical performance, was performed in five studies. The estimated prevalences of sarcopenia in pre-stroke, within 10 days of stroke, and from 10 days to 1 month after stroke were 15.8%, 29.5%, and 51.6%, respectively. Sarcopenia increased by approximately 15% from pre-stroke to 10 days, and increased by approximately 20% from 10 days to 1 month. Healthcare providers should note that the prevalence of sarcopenia increases during the acute phase in patients with stroke.

22 May 2021 in Journal of Diabetes Investigation
Verified
Journal Article
Open access
PDF file
HKHitoshi Kuwata
Hitoshi Kuwata
Daisuke YabeDaisuke Yabe
Daisuke Yabe
KMKenta Murotani
Kenta Murotani
YFYuuka Fujiwara
Yuuka Fujiwara
THTakuya Haraguchi
Takuya Haraguchi
YSYutaka Seino Yutaka Seino
Yutaka Seino Yutaka Seino
Aims/Introduction: Differences in the glucose‐lowering mechanisms of glucagon‐like peptide‐1 receptor agonists (GLP‐1RAs) have been noted. Clarifying these differences could facilitate the choice of optimal drugs for individuals with type 2 diabetes and requires investigation in a clinical setting.Materials and Methods: A single‐arm, prospective, observational study was conducted to evaluate the effects of various GLP‐1RAs on postprandial glucose excursion, secretions of insulin and glucagon as well as on the gastric emptying rate. Participants were subjected to meal tolerance tests before and 2 weeks and 12 weeks after GLP‐1RA initiation. Effects on postprandial secretions of glucose‐dependent insulinotropic polypeptide (GIP) and apolipoprotein B48 were also investigated.Results: Eighteen subjects with type 2 diabetes received one of three GLP‐1RAs, i.e., lixisenatide, n = 7; liraglutide, n = 6; or dulaglutide, n = 5. While 12‐week administration of all of the GLP‐1RAs significantly reduced HbA1c, only lixisenatide and liraglutide, but not dulaglutide, significantly reduced body weight. Postprandial glucose elevation was improved by all of the GLP‐1RAs. Postprandial insulin levels were suppressed by lixisenatide, while insulin levels were enhanced by liraglutide. Postprandial glucagon levels were suppressed by lixisenatide. The gastric emptying rate was significantly delayed by lixisenatide, while liraglutide and dulaglutide had limited effects on gastric emptying. GIP secretion was suppressed by lixisenatide and liraglutide. Apolipoprotein B48 secretion was suppressed by all of the GLP‐1RAs.Conclusions: All of the GLP‐1RAs were found to improve HbA1c in a 12‐week prospective observational study in Japanese individuals with type 2 diabetes. However, differences in the mechanisms of the glucose‐lowering effects and body weight reduction were observed.