Publications by authors named "Yoneda Takashi"

Article Synopsis
  • - Lifestyle-related diseases, such as diabetes, stem from poor habits, prompting Japan to introduce specific health checkups and guidance in 2008, though retention and results have been challenging.
  • - This study evaluated the effectiveness of using a smartphone app for nutritional guidance alongside conventional health guidance, involving participants from 2018 to 2020 and measuring changes in cholesterol and body weight over short (3 months) and long (6 months) terms.
  • - Results indicated significant short-term improvements in cholesterol levels and body weight for those using the app, though long-term benefits diminished and retention rates dropped from 92% to 57.8% after 6 months, suggesting that the app can help initially but might struggle to maintain engagement over
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Recently, the usefulness of circulating tumor DNA (ctDNA) analysis in various malignancies has been reported. However, reports on ctDNA analysis in adrenocortical carcinoma (ACC) are few. Therefore, this study aimed to examine the detectability of genetic mutations in ctDNA and the association between ctDNA allelic ratio and disease progression in a patient with post-operative recurrence of ACC.

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  • Tirzepatide is a new anti-diabetic drug that is more effective in lowering blood glucose and reducing body weight compared to traditional glucagon-like peptide-1 analogs.
  • A study analyzed 40 type 2 diabetes patients who switched from dulaglutide to tirzepatide, finding significant reductions in glycosylated hemoglobin by 1.2% and body weight by 3.6 kg after 6 months.
  • Improvements in liver function markers were also noted, with greater reductions in liver enzymes for patients who initially had higher levels, suggesting that switching to tirzepatide is beneficial for overall health in these patients.
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Context: Oxytocin supplementation improves obstructive sleep apnea (OSA), and animal studies suggest involvement of oxytocin in respiratory control. However, the relationship between endogenous oxytocin signaling and human sleep status remains undetermined.

Objective: In this study, we approached the contribution of the intrinsic oxytocin-oxytocin receptor (OXTR) system to OSA by genetic association analysis.

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Pheochromocytoma is a rare form of adrenal hypertension. This study aimed to investigate the clinical characteristics and associated genetic mutations in patients with pheochromocytoma and primary aldosteronism. We retrospectively analyzed data from 23 patients with pheochromocytoma diagnosed and treated between 2011 and 2022.

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Article Synopsis
  • * It finds that certain genes are unmethylated in the zona fasciculata (ZF) but heavily methylated in the zona glomerulosa (ZG) and reticularis (ZR), affecting the expression of CYP11B enzymes.
  • * The results suggest that aldosterone synthesis might occur in the adrenal medulla, and further research is needed to understand its implications.
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  • Primary aldosteronism (PA) is the most common secondary hypertension, often caused by aldosterone-producing adenomas identifiable by genetic analysis.
  • A case study was presented involving a 27-year-old Japanese woman diagnosed with PA, who underwent surgery after tests revealed aldosterone overproduction but no visible tumors on imaging.
  • Post-surgery, her blood pressure and potassium levels normalized, and genetic analysis of the excised tissue showed multiple aldosterone-producing micronodules with variations in the gene, with no recurrence of symptoms 17 years later.
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  • The study aimed to explore the prevalence of normal-tension glaucoma (NTG) among patients diagnosed with primary aldosteronism (PA).
  • Conducted as a cross-sectional study, various ophthalmic examinations were performed on newly diagnosed PA patients to determine the occurrence of NTG.
  • Results showed an 11.8% prevalence of NTG in PA patients, which was significantly higher compared to hypertensive patients without PA, indicating an increased risk for NTG in this group that was independent of blood pressure levels.
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Activation of the renin-angiotensin-aldosterone system (RAAS) plays an important pathophysiological role in hypertension. Increased mRNA levels of the , angiotensin type 1 receptor gene, , and the aldosterone synthase gene, have been reported in the heart, blood vessels, and kidneys in salt-sensitive hypertension. However, the mechanism of gene regulation in each component of the RAAS in cardiovascular and renal tissues is unclear.

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Article Synopsis
  • - This study evaluates how common unilateral hyperaldosteronism (UHA) is among patients with primary aldosteronism (PA) and examines its clinical features, using data from 199 PA patients in Japan.
  • - The research categorizes the patients into confirmed PA, where over half have UHA, and borderline PA, with about 15-20% having UHA; hypokalemia is identified as a significant predictor for UHA in borderline cases.
  • - The findings highlight the crucial role of adrenal venous sampling in confirmed PA cases and emphasize the importance of thorough testing and considering multiple clinical indicators for assessing borderline PA cases.
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Primary aldosteronism (PA) is a subtype of secondary hypertension categorized as either unilateral PA (eg, aldosterone-producing adenoma [APA]) or bilateral PA. CYP11B2, an aldosterone synthase, is highly expressed in APA. Recent studies have revealed a high prevalence of pathogenic variants in and the role of DNA methylation on CYP11B2 in APA.

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  • * Researchers created a diagnostic model to identify patients at risk for ischemic heart disease (IHD) and stroke using health examination data from over 473,000 individuals aged 40 and older.
  • * The best-performing machine learning model (XGBoost) showed high accuracy in predicting CCVD outcomes, and the study identified lifestyle factors affecting disease risk, specifically linking reduced chewing to weight gain.
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Degludec (Deg) and glargine U300 (Gla-300) are insulin analogs with longer and smoother pharmacodynamic action than glargine U100 (Gla-100), a long-acting insulin that has been widely used for many years in type 1 and type 2 diabetes. Both improve glycemic variability (GV) and the frequency of hypoglycemia, unlike Gla-100. However, it is unclear which insulin analog affects GV and hypoglycemia better in patients with insulin-dependent type 1 diabetes.

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Aldosterone secretion in primary aldosteronism (PA) is often regulated by adrenocorticotropic hormone (ACTH) in addition to its autonomous secretion. However, the clinical characteristics and risk of cardiovascular and cerebrovascular (CCV) events in PA patients with aldosterone responsiveness to ACTH stimulation remain unclear. This study aimed to investigate the prevalence of CCV events in PA patients with high aldosterone responsiveness to ACTH stimulation.

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Introduction: Individuals who have had severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection may develop post-coronavirus disease conditions, also known as long COVID. The symptoms of long COVID are nonspecific, and there are similarities between the symptoms of long COVID and those of Graves' disease (GD). Therefore, it is important to rule out GD in patients suspected of having long COVID.

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The remarkable performance of ChatGPT, launched in November 2022, has significantly impacted the field of natural language processing, inspiring the application of large language models as supportive tools in clinical practice and research worldwide. Although GPT-3.5 recently scored high on the United States Medical Licensing Examination, its performance on medical licensing examinations of other nations, especially non-English speaking nations, has not been sufficiently evaluated.

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Article Synopsis
  • - The study investigates the role of 11β-HSD1, an enzyme linked to metabolic syndrome, focusing on how its gene (HSD11B1) is regulated by epigenetic factors in adipose tissue from patients with different adrenal conditions, including primary aldosteronism (PA) and subclinical Cushing's syndrome (SCS).
  • - mRNA analysis showed that HSD11B1 expression was significantly higher in patients with aldosterone-producing adenoma (APA) and SCS compared to those with non-functioning adrenal adenoma (NFA) or Cushing's adenoma (Cu), indicating potential differences in metabolic impact.
  • - The research also found lower levels of methylation in the HSD
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This study assessed the clinical performance of point-of-care testing (POCT) for quick cortisol assay (QCA) during adrenal vein sampling (AVS) using a newly invented portable quantitative assay instrument. An observational study was conducted prospectively at two centres in Japan. Forty-eight patients with primary aldosteronism considered for adrenalectomy were enrolled in this study and underwent AVS.

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Primary aldosteronism (PA) is a major cause of secondary hypertension. Aldosterone-producing adenoma (APA) is a subtype of PA, and adrenalectomy is the gold-standard treatment. Recently, a high prevalence of the gene mutation has been reported in APA, particularly in Japan.

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Pheochromocytoma is a tumor of chromaffin cells causing catecholamines overproduction. Interleukin-6 (IL-6), a cytokine, is central to inflammation and immunity. Few studies have reported IL-6-producing pheochromocytoma whose underlying mechanism has not been elucidated.

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Objective: The Scatchard plot of anti-insulin antibodies is curvilinear, indicating heterogeneity in binding sites. However, the relationship between bound insulin (B) and free insulin (F) in patients with anti-insulin antibodies has not yet been elucidated. This study aimed to determine this relationship.

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Summary: The COVID-19 pandemic has led to the emergence of telemedicine on a global scale. In endocrinology, telemedicine has mainly been used in relation to chronic diseases, including diabetes. Herein, we report the case of an 18-year-old woman with a hypertensive emergency due to a pheochromocytoma who was quickly diagnosed and treated using telemedicine.

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  • - The RAAS is a key endocrine system mechanism linked to diseases like hypertension and kidney and heart issues, while the gut microbiota (GM) has been connected to various diseases mainly in animal studies.
  • - A study involving 377 individuals aged 40 and older in Shika-machi, Japan, investigated the relationship between RAAS and GM, using methods like plasma renin activity analysis and 16S rRNA sequencing.
  • - Findings indicated specific bacteria, such as Blautia and Bacteroides, are associated with RAAS parameters, and there is a causal link between Blautia and plasma aldosterone concentration, suggesting that targeting the gut microbiota may offer new strategies for preventing and treating hypertension and kidney diseases. *
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Summary: Fulminant type 1 diabetes (FT1D) is a subtype of diabetes characterized by rapid progression of β-cell destruction, hyperglycemia, and diabetic ketoacidosis (DKA). The pathogenesis of this disease remains unclear. However, viral infections, HLA genes, and immune checkpoint inhibitor use were reportedly involved in this disease.

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