Publications by authors named "Akio Shimizu"

Background & Aims: The diagnostic criteria for cachexia, as proposed by the Asian Working Group for Cachexia (AWGC), include weight loss, a low body mass index, and additional factors such as a low handgrip strength (HGS), anorexia, or elevated CRP levels. This study aimed to evaluate the significance of low HGS as a diagnostic criterion in patients with advanced cancer.

Methods: This single-centre, retrospective cohort study was conducted between April 2019 and March 2023.

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Background And Aims: Tumor growth and progression are affected by interactions between tumor cells and stromal cells within the tumor microenvironment. We previously showed that the expression of an integral membrane protein, called stomatin, was increased in cancer cells following their association with stromal cells. Additionally, stomatin impaired the Akt signaling pathway to suppress tumor growth.

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Malnutrition in children with cancer is associated with poor prognosis. This study aimed to determine whether nutritional support team (NST) interventions prevent adverse events and improve the nutritional status in pediatric patients admitted for cancer treatment. This was a historical cohort study of pediatric patients with acute lymphocytic leukemia, acute myeloid leukemia, neuroblastoma, or brain tumor who received chemotherapy or underwent hematopoietic stem cell transplantation.

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Background: Oral and social problems can exacerbate long-term care. Understanding the relationship between social aspects and oral hypofunction can help identify high-risk factors for long-term care.

Objective: This study aimed to investigate the social aspects of oral hypofunction among medical outpatients.

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Article Synopsis
  • - This study explored how often older adults living alone in Japan eat together and its impact on their likelihood of developing functional disabilities over a 6-year period.
  • - The research involved 7,167 participants aged 65 and older, finding that 12.8% experienced functional disabilities, with those who rarely ate with others being significantly more at risk.
  • - The results suggest that infrequent communal meals ('seldom' eating together) correlate with higher chances of functional disability, highlighting the importance of social interactions in maintaining health among older adults.
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Background: The effect of sarcopenia on depressive mood during geriatric rehabilitation remains unclear. This study investigated the potential influence of sarcopenia on depressive mood among geriatric patients in a rehabilitation setting.

Methods: This observational cohort study enrolled 204 patients aged ≥65 years (mean: 78.

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Objectives: This study aims to investigate the association between malnutrition using the global consensus criteria and food texture levels in residents of Integrated Facilities for Medical and Long-Term Care (IFMLCs), which are new long-term care insurance facilities in Japan.

Methods: This single-center study had a retrospective cross-sectional design. The study was conducted from November 1 to 30, 2021, and the study participants were residents admitted to an IFMLC during the study period.

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High-pressure water freeze fracturing is a method for preparing water-containing samples such as hydrogels for scanning electron microscopy (SEM), in which a sample is placed in a divisible pressure vessel, filled with water, sealed, frozen with liquid nitrogen and then vacuum dried after the vessel is divided. The pressure (∼200 MPa) generated by the phase transition from water to ice is expected to inhibit ice crystal formation that causes large deformation of microstructure in the sample. To maximize the useable sample size, where SEM observation is not affected by ice crystal growth, preparation conditions including the size of pressure vessel were examined in this work.

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Objectives: In this study, we aimed to investigate the prevalence of oral frailty and explore its relationship with oral function and sarcopenia among older outpatients.

Materials And Methods: In this cross-sectional study, we retrospectively included older patients who visited a frailty outpatient clinic. We assessed total oral frailty employing, among other measures, oral diadochokinesis (/ta/ sound) for tongue-lip movement and tongue pressure.

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Article Synopsis
  • * The study involved 142 subjects split into older (≥65 years) and younger (≤39 years) groups, measuring the muscle area using ultrasound.
  • * Found that cut-off values for identifying low geniohyoid muscle mass were 172.5 mm for women and 194.7 mm for men, useful for diagnosing sarcopenic dysphagia.
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Background: The association of the combination of body mass index (BMI) and weight change at admission with prognoses in patients with heart failure (HF) is unclear. Therefore, we investigated whether BMI and weight changes at admission affect mortality in patients with HF.

Methods: This retrospective cohort study lasted 99 months, starting in April 2014, and included 4,862 patients with HF from a Japanese real-world database.

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Purpose: Frailty and hospitalization-associated disabilities (HAD) are geriatric conditions that should be managed in older patients undergoing pancreatectomy. The Hospital Frailty Risk Score (HFRS) can evaluate frailty based on medical records and could predict postoperative activities of daily living (ADL) decline. This study aimed to investigate whether HFRS affects the postoperative incidence of HAD in older patients who underwent pancreatectomy.

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Background This study aimed to explore the relationship between poor oral health status and improvement in swallowing function in older patients with dysphagia across various clinical settings, including acute and post-acute care environments. Methods This retrospective cohort study encompassed patients aged 65 years and older with dysphagia. Oral health status was assessed using the oral health assessment tool (OHAT) or the revised oral assessment guide (ROAG).

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Article Synopsis
  • A study was conducted on 467 hospitalized patients aged 65 and older with dysphagia to explore the prevalence of polypharmacy (taking 5 or more medications) and the use of potentially inappropriate medications (PIMs) based on updated guidelines.
  • *Out of 399 participants analyzed, it was found that 67.7% experienced polypharmacy and 56.1% were on PIMs, but these factors did not show a significant impact on patients' swallowing function at discharge.
  • *The study highlights the necessity for healthcare providers to regularly review and assess the appropriateness of medications for older patients to ensure better management and outcomes.
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Renal artery stenosis-induced chronic renal ischemia is an important cause of renal dysfunction, especially in older adults, and its incidence is currently increasing. To elucidate the mechanisms underlying chronic renal hypoperfusion-induced kidney damage, we developed a novel mouse model of renal artery coiling-based chronic hypoperfusion-related kidney injury. This model exhibits decreased renal blood flow and function, atrophy, and parenchymal injury in the coiled kidney, along with compensatory hypertrophy in the non-coiled kidney, without chronic hypertension.

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Background: Recently, the Asian Working Group for Cachexia (AWGC) published a consensus statement on diagnostic criteria for cachexia in Asians. We aimed to validate the criteria in adult patients in Japan with advanced cancer.

Methods: We conducted a single-institution retrospective cohort study between April 2021 and October 2022.

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Japanese diet adherence has been inversely correlated with muscle weakness. In this study, we aimed to validate that association. Longitudinal data from 1699 individuals aged ≥50 years (mean age 62.

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Objective: To assess the associations between oral health status and short-term functional outcomes in hospitalized patients aged over 65 years with acute ischemic stroke.

Materials And Methods: This retrospective observational analysis included older adult patients (age, ≥ 65 years) admitted for acute ischemic stroke. The oral health status at admission was evaluated using the Oral Health Assessment Tool (OHAT).

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Ras homolog gene family member A (RhoA) belongs to the Rho GTPase superfamily, which was first studied in cancers as one of the essential regulators controlling cellular function. RhoA has long attracted attention as a key molecule involved in cell signaling and gene transcription, through which it affects cellular processes. A series of studies have demonstrated that RhoA plays crucial roles under both physiological states and pathological conditions in cardiovascular diseases.

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Sarcopenic dysphagia (SD) is an emerging concern in geriatric medicine. This study aimed to identify the prevalence, progression, and distinct attributes of SD in patients in the Department of Geriatric Medicine. Older adult patients admitted between 2021 and 2022 were enrolled.

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