Publications by authors named "Yukiko Abe"

Background: Cervical myelopathy is rarely caused by vertebral artery (VA) compression, and a very limited number of cases have been published. In most of these cases, dorsal cord compression was observed and treated by microvascular decompression (MVD). However, in the very rare case of ventral spinal cord compression by the VA (VSCV), access for MVD is significantly limited.

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Traditionally, leptomeningitis (LM) has been considered untreatable and terminal, but the development of epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) has significantly improved the prognosis of patients with EGFR mutations. However, non-LM lesions occasionally progress or recur, even when the LM is successfully controlled with EGFR-TKIs, and treatment of such cases remains unclear. We herein report a patient with advanced non-small-cell lung cancer (NSCLC) who was treated with an EGFR-TKI for LM and cytotoxic chemotherapy for EGFR-TKI-resistant pulmonary lesions.

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Background: Multimorbidity increases with age, leading to various adverse outcomes, including higher mortality, care dependency, hospitalizations, and healthcare costs. Polydoctoring, managing a patient with multimorbidity by multiple healthcare providers, can be a risk of fragmented care and increased healthcare expenditures. This study aims to identify patient-related factors contributing to polydoctoring in older adults with multimorbidity.

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Background: The relationship between inflammatory response, fish consumption, and mortality risk in older individuals is unclear. We investigated whether C-reactive protein (CRP) levels ≥ 0.1 mg/dL, fish intake, and inflammatory responses are associated with all-cause mortality risk in older adults.

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  • A study examined the link between malnutrition and oral health in older adults (aged 85+) using the GLIM criteria for diagnosing malnutrition, involving 519 participants from Tokyo.
  • Findings revealed that 17.1% of participants were malnourished and had significant issues in oral health such as decreased maximum occlusal force, meal enjoyment, and various specific oral health problems.
  • Cox regression analysis indicated specific oral health declines and problems (like difficulty in eating and maintaining teeth) were strongly associated with increased malnutrition risk among the elderly.
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Objective: To investigate on three-dimensional (3D) fusion images the apposition of low-profile visualized intraluminal support (LVIS) stents in intracranial aneurysms after treatment and assess inter-rater reliability.

Materials And Methods: Records of all patients with unruptured intracranial aneurysms who were treated with the LVIS stent were retrospectively accessed and included in this study. Two neurosurgeons evaluated the presence of malapposition between the vessel walls and the stent trunk (crescent sign) and the vessel wall and the stent edges (edge malappostion) on 3D fusion images.

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  • Polydoctoring, or seeing multiple healthcare providers, can lead to fragmented care in older adults with multiple health issues, but its effects on health outcomes are not well understood.
  • A study from the Kawasaki Aging and Wellbeing Project focused on patients aged 85-89 with two or more chronic conditions, assessing the link between the number of medical facilities involved in their care and mortality rates.
  • Results indicated that older adults with 2-4 chronic conditions who regularly visited three or more facilities had lower mortality rates, while those with five or more conditions did not see a similar benefit from seeing multiple doctors.*
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Background: The significance of angiogenic factors as predictors of second-line (2L) chemotherapy efficacy when combined with angiogenesis inhibitors for metastatic colorectal cancer (mCRC) remains unestablished.

Patients And Methods: In this multicenter prospective observational study, 17 angiogenic factors were analyzed in plasma samples collected at pretreatment and progression stages using a Luminex multiplex assay. Patients who received chemotherapy plus bevacizumab (BEV group), FOLFIRI plus ramucirumab (RAM group), or FOLFIRI plus aflibercept (AFL group) as the 2L treatment were included.

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Background: Care fragmentation, characterized by the uncoordinated involvement of multiple healthcare providers, leads to inefficient and ineffective healthcare, posing a significant challenge in managing patients with multimorbidity. In this context, "polydoctoring," where patients see multiple specialists, emerges as a crucial aspect of care fragmentation. This study seeks to develop an indicator to assess polydoctoring, which can subsequently enhance the management of multimorbidity.

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Background: During coil embolization of intracranial aneurysms, the aneurysmal neck needs to be evaluated because coil protrusion into the parent artery may lead to ischemic complications. However, the neck cannot always be clearly visualized due to the limitation of the angiography system and due to the structure of the aneurysm. As a visual aid, we propose a color-coded fusion imaging method that generates "virtual coil" images using preoperative three-dimensional digital subtraction angiography (3D-DSA) images.

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  • Higher levels of circulating high-molecular-weight (cHMW) adiponectin are common in people aged 85-89 and centenarians, linking it with reduced diabetes prevalence but also increased mortality risks.
  • The study analyzed 2,310 participants using genetic sequencing and statistical methods to explore factors related to cHMW adiponectin and its association with mortality.
  • Findings indicated that while cHMW adiponectin levels were influenced by genetic variants and cholesterol in older individuals, its connection to increased mortality varied by gender and age group, emphasizing complex health implications of adiponectin levels.
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  • This study focused on identifying plasma angiogenesis factors that could help predict how well traditional chemotherapy combined with biologics works for patients with RAS wild-type metastatic colorectal cancer (mCRC).
  • Researchers collected plasma samples before treatment and at the progression stage from 202 patients, analyzing 17 factors using specialized technology to assess their impact on patient survival.
  • Results showed that levels of interleukin-8 and soluble vascular cell adhesion molecule-1 were linked to treatment effectiveness, indicating these could serve as important biomarkers for tailoring cancer therapies.
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Background: Increased protein intake has been recommended to prevent sarcopenia/frailty, reports on the quantity and quality of protein intake needed and the associated prognosis, particularly in the aging population of Asia, are limited. In this study, we aimed to investigate the relationship between protein intake and mortality in Japanese individuals, aged 85 years and older.

Methods: The data were obtained from The Kawasaki Aging and Wellbeing Project, which is a prospective cohort study of older adults aged between 85 and 89 years with no physical disability at baseline.

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Background: Direct carotid-cavernous fistulas (dCCFs) are often treated endovascularly. However, because the dCCF is usually a high-flow shunt, it is often difficult to obtain an accurate vascular structure using conventional digital subtraction angiography (DSA). Here, the authors report a case of successfully treated dCCF using three-dimensional (3D) fused DSA images.

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Background: In the general population, an increase in low-density lipoprotein cholesterol (LDL-C) predicts higher cardiovascular disease risk, and lowering LDL-C can prevent cardiovascular disease and reduces mortality risk. Interestingly, in cohort studies that include very old populations, no or inverse associations between LDL-C and mortality have been observed. This study aims to investigate whether the association between LDL-C and mortality in the very old is modified by a composite fitness score.

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  • Sarcopenia, a condition related to muscle loss, greatly impacts health in older adults but its causes are not well understood, particularly in those aged 85-89.
  • This study analyzed 133 community-dwelling Japanese adults to investigate the relationship between plasma free amino acids (PFAAs) and key indicators of sarcopenia like muscle mass, strength, and physical performance.
  • The findings revealed that higher levels of histidine and lower levels of alanine were linked to slower walking speeds, suggesting these amino acids could serve as potential blood biomarkers for assessing physical performance in the elderly.
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Hemophagocytic lymphohistiocytosis (HLH) has been reported as a rare complication of immune checkpoint inhibitors (ICI); however, ICI-related HLH is a life-threatening and comparatively late adverse event. Early diagnosis is critical, and it should be included in the differential diagnosis especially in patients with cytopenia with fever and hyperferritinaemia.

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  • BRAF mutations, particularly BRAF V600E, are common in colorectal cancers, but a new mutation, BRAF L525R, was identified and studied for its effects on cancer cell behavior.
  • The study utilized HEK293 cells with BRAF V600E or L525R mutations, testing their response to various cancer treatments and assessing cell viability and signaling pathways.
  • Results indicated that selumetinib effectively inhibited cell growth and ERK activation in BRAF L525R cells, while the AKT pathway played a crucial role in determining sensitivity and resistance to this treatment.
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Background: Centenarians and supercentenarians with exceptional longevity are excellent models for research towards improvements of healthy life expectancy. Extensive research regarding the maintenance and reduction of epigenetic age has provided insights into increasing healthy longevity. To this end, we explored the epigenetic signatures reflecting hallmarks of exceptional healthy longevity, including avoidance of age-related diseases and cognitive functional decline.

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Objectives: As the world's population is ageing, improving the physical performance (PP) of the older population is becoming important. Although diets are fundamental to maintaining and improving PP, few studies have addressed the role of these factors in adults aged ≥ 85 years, and none have been conducted in Asia. This study aimed to determine the dietary patterns (DP) and examine their relationship with PP in this population.

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A healthy diet and regular physical activity (PA) are delineated as healthy behaviours. Their implementation is associated with better health outcomes and improved quality of life. There is less evidence of a relationship between dietary patterns (DP) and PA, especially in adults aged ≥ 85.

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Aim: While the proportion of people of ≥85 years of age is expected to increase, there is limited research on the dietary patterns and physical performance of this population in Japan. The purpose of this study was to identify the dietary patterns of people of ≥85 years of age who live in Tokyo and to examine the relationship with their physical performance.

Methods: Using data from the baseline survey (conducted in 2008-2009) of The Tokyo Oldest Old survey on Total Health study, the estimated 58 food intake items were aggregated into 33 items after energy adjustment, and a principal component analysis was performed.

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It is mandatory to manage musculoskeletal disorders in the elderly to prevent their becoming bed-ridden or requiring long-term care. However, the prevalence of musculoskeletal disorders such as osteoporosis and sarcopenia in otherwise healthy people over 85 years old is not completely known. Here we enrolled 1026 healthy subjects between 85 and 89 years old and evaluated them for the presence of osteoporosis, sarcopenia and fragility fracture(s), and how those conditions were related.

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