141 results match your criteria: "University Hospital of the Ryukyus[Affiliation]"

Emergence of IncX4 plasmids encoding mcr-1 in a clinical isolate of Klebsiella pneumoniae in Japan.

Int J Infect Dis

October 2018

Department of Infectious Diseases, Respiratory, and Digestive Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan.

Article Synopsis
  • The mcr-1 gene helps bacteria resist colistin, an antibiotic, by adding phosphoethanolamine to a part of their cell membrane called lipid A.
  • A specific 33-kb plasmid containing the mcr-1 gene was found in Klebsiella pneumoniae and Escherichia coli bacteria in hospitals in Okinawa, Japan.
  • Additionally, a larger 66-kb plasmid was also identified in three E. coli isolates from the same hospitals, indicating the spread of resistance genes among different bacterial strains.
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Estimated glomerular filtration rate decline and risk of end-stage renal disease in type 2 diabetes.

PLoS One

January 2019

Department of Nephrology, Kanazawa University Hospital, Kanazawa, Japan / Department of Disease Control and Homeostasis, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan.

Article Synopsis
  • Declines in estimated glomerular filtration rate (eGFR) of 20%, 30%, or 40% can indicate a risk for end-stage renal disease (ESRD) in patients with type 2 diabetes, as shown in a study with Japanese participants.
  • The study involved 1868 patients followed for 2 years and 2001 patients for 3 years, finding that a notable percentage experienced declines in eGFR and ultimately developed ESRD.
  • Strong correlations were observed between the magnitude of eGFR decline and the subsequent risk of ESRD, suggesting that even a 20% decline may serve as a potential warning sign for diabetic kidney disease.
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Hyponatremia and mortality among very elderly residents in a geriatric health service facility.

Clin Exp Nephrol

December 2018

Department of Cardiovascular Medicine, Nephrology and Neurology, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan.

Introduction: Hyponatremia is common among elderly patients. This study aimed to examine the prognostic value of hyponatremia among elderly residents in a geriatric facility.

Methods: We retrospectively examined the association between serum sodium levels and mortality among 118 residents (82% female, mean age 85.

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Article Synopsis
  • * A case report details a 70-year-old man with an unusual combination of three malignancies: jaw OS, myelodysplastic syndrome, and colorectal adenocarcinoma, highlighting the need for more research in this area.
  • * The report recommends including FDG-PET scans in the long-term follow-up for OS patients to help detect asymptomatic solid SPMs that might otherwise go unnoticed.
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Dedifferentiated liposarcoma of the oral floor: A case study and literature review of 50 cases of head and neck neoplasm.

Oncol Lett

May 2018

Department of Oral and Maxillofacial Functional Rehabilitation, Graduate School of Medicine, University of the Ryukyus, Nishihara, Okinawa 903-0215, Japan.

Dedifferentiated liposarcoma (DDLS) has a relatively poor prognosis, however this neoplasm rarely occurs in the head and neck. To date, no definite protocol has been established for the diagnosis and treatment of head and neck DDLS. The present study reports the case of a 69-year-old male patient with DDLS of the oral floor.

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MicroRNAs (miRs) are expected to serve as prognostic tools for cancer. However, many miRs have been reported as prognostic markers of recurrence or metastasis in oral squamous cell carcinoma patients. We aimed to determine the prognostic markers in early-stage tongue squamous cell carcinoma (TSCC).

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A hemin auxotrophic Enterobacter cloacae clinical isolate with increased resistance to carbapenems and aminoglycosides.

J Med Microbiol

January 2018

Department of Infectious Diseases, Respiratory, and Digestive Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan.

Small-colony variants (SCVs) were obtained from an Enterobacter cloacae clinical isolate in Okinawa, Japan. One variant showed auxotrophy for hemin with a deletion of 20 365 nucleotides, dosC-ydiK-mmuP-mmuM-tauA-tauB-tauC-tauD-hemB-yaiT-yaiV-ampH-yddQ-sbmA-yaiW-yaiY-yaiZ, including hemB, and was more resistant to aminoglycosides and carbapenems, but more susceptible to aztreonam, than the parent strain.

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This study describes highly aminoglycoside-resistant Klebsiella pneumoniae and Klebsiella oxytoca clinical isolates obtained from an inpatient in Okinawa, Japan, with no known record of traveling overseas. The minimum inhibitory concentrations of amikacin and arbekacin against these strains were >1024 μg/ml. Whole-genome sequencing analysis revealed that these isolates harbored armA, which encodes a 16S rRNA methylase, ArmA, that confers pan-aminoglycoside resistance.

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A Modified Carbapenem Inactivation Method, CIMTris, for Carbapenemase Production in Acinetobacter and Pseudomonas Species.

J Clin Microbiol

December 2017

Department of Infectious Diseases, Respiratory, and Digestive Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan.

The carbapenem inactivation method (CIM) and modified CIM (mCIM) are simple and economical phenotypic screening methods for detecting carbapenemase production in Gram-negative bacteria. Although the mCIM has been recommended by the Clinical and Laboratory Standards Institute, both the CIM and mCIM have limitations. This study describes another modified CIM, called CIMTris, in which carbapenemase was extracted from bacteria with 0.

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Background: Hyperuricemia (HU) may enhance susceptibility to hypertensive renal damage via disrupted autoregulation of glomerular hemodynamics. The effect of HU on the association between blood pressure (BP) and proteinuria remains unknown in patients with chronic kidney disease (CKD).

Methods: In total, 109 patients with nonnephrotic CKD (55 men and 54 females) who underwent renal biopsy were recruited.

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The diagnosis of decompression illness (DCI), which is based on a history of decompression and clinical findings, can sometimes be confounded with other vascular events of the central nervous system. The authors report three cases of divers who were urgently transported to a hyperbaric facility for hyperbaric oxygen treatment of DCI which at admission turned out to be something else. The first case, a 45-year-old experienced diver with unconsciousness, was clinically diagnosed as having experienced subarachnoid hemorrhage, which was confirmed by CT scan.

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Emergence of a colistin-resistant Escherichia coli clinical isolate harboring mcr-1 in Japan.

Int J Infect Dis

October 2017

Department of Infectious Diseases, Respiratory, and Digestive Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan.

The mcr-1 is a gene encoding a phosphoethanolamine transferase, which confers resistance to colistin by transferring phosphoethanolamine to lipid A. We describe here the emergence of a colistin-resistant Escherichia coli clinical isolate harboring plasmid-mediated mcr-1 in Japan. The isolate belonged to ST5702 and is suspected to come from livestock and transmitted to human.

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Association of Hypertriglyceridemia With the Incidence and Progression of Chronic Kidney Disease and Modification of the Association by Daily Alcohol Consumption.

J Ren Nutr

November 2017

Steering Committee of Research on Design of the Comprehensive Health Care System for Chronic Kidney Disease (CKD), based on the Individual Risk Assessment by Specific Health Checkup, The Ministry of Health, Labour and Welfare of Japan, Fukushima, Japan.

Objective: The association of serum triglycerides (TGs) and alcohol consumption with chronic kidney disease (CKD) is unclear. The purpose of this study was to investigate the association of serum TG and daily alcohol consumption with CKD in the general population.

Design: The design of the study was longitudinal cohort study.

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Indolent growth of low-grade myofibroblastic sarcoma of the cheek mimics benign lesions: A case report and literature review.

Oncol Lett

June 2017

Department of Oral and Maxillofacial Functional Rehabilitation, Graduate School of Medicine, University of The Ryukyus, Nishihara, Okinawa 903-0215, Japan.

Low-grade myofibroblastic sarcoma (LGMS) is a neoplasm of the soft tissue characterized by myofibroblastic differentiation. This type of tumor has been observed in various sites in the whole body, but frequently occurs in the head and neck region. It typically presents as a slow-growing painless mass, which is often mistaken for a benign lesion due to its indolent growth; however, LGMS is a malignant neoplasm.

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Objective: We investigated the characteristic findings of regenerative nodules (RNs) for differentiating early hepatocellular carcinoma (HCC) from high-grade dysplastic nodules (HGDNs) using magnetic resonance imaging (MRI) with gadolinium ethoxybenzyl diethylenetriaminepentaacetic acid (Gd-EOB-DTPA; EOB-MRI) and contrast-enhanced ultrasonography (CEUS) in patients with chronic liver disease.

Subjects And Methods: Pathologically confirmed lesions (100 early HCCs, 7 HGDNs, and 20 RNs with a maximum diameter of more than 1 cm and mean maximal diameters of 15.5, 15.

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Modification of the impact of hypertension on proteinuria by renal arteriolar hyalinosis in nonnephrotic chronic kidney disease.

J Hypertens

November 2016

aDialysis Unit, University Hospital of the Ryukyus bDepartment of Cardiovascular Medicine, Nephrology and Neurology, University of the Ryukyus School of Medicine, Nishihara-cho, Japan.

Objective: Morphological analysis suggests that afferent arteriole hyalinosis reflects disturbed autoregulation of glomerular hemodynamics. However, the effect of arteriolar hyalinosis on the correlation between blood pressure (BP) levels and proteinuria is unknown in patients with chronic kidney disease (CKD). Therefore, we conducted a cross-sectional study to determine this correlation.

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Impact of metronomic neoadjuvant chemotherapy on early tongue cancer.

Cancer Chemother Pharmacol

October 2016

Department of Oral and Maxillofacial Functional Rehabilitation, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa, 903-0215, Japan.

Purpose: A metronomic schedule of chemotherapy (resulting in a greater frequency of drug delivery) has shown efficacy in head and neck cancer. Our aim was to investigate the overall survival in tongue cancer patients with metronomic neoadjuvant chemotherapy with bleomycin compared to those with surgery alone.

Methods: In this retrospective study, 117 patients with stages I-II tongue cancer, who had undergone surgery, were divided into the "surgery group" or "metronomic neoadjuvant chemotherapy with bleomycin (15 mg × 6) group.

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Objective: The relationship between chronic inflammation and the incidence of chronic kidney disease (CKD) remained not-clear in patients with rheumatoid arthritis (RA). This study aims to examine the relationship between persistently high C-reactive protein (CRP), a marker of inflammation, and the incidence of CKD in RA.

Methods: We retrospectively examined the relationship between the levels of CRP and incidence of CKD in 345 RA patients.

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Hyperuricemia may promote the progression of hypertension and renal dysfunction. However, the effects of hyperuricemia treatment on blood pressure and renal function in adult hypertensive patients with hyperuricemia remain unclear. A total of 137 hypertensive patients with hyperuricemia (96 men and 41 women; mean age of 67 years) who recently started taking xanthine oxidase inhibitors (allopurinol or febuxostat) as outpatients were recruited.

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Article Synopsis
  • Recent findings show that lifestyle changes are crucial in managing chronic kidney disease (CKD), highlighting the need for effective collaboration between general physicians and nephrologists in treatment.
  • This study involved 2,379 CKD patients in Japan, comparing standard and advanced interventions that included educational support and better communication among healthcare providers.
  • Results indicated that patients receiving the advanced intervention had lower rates of discontinuing medical follow-up and higher collaboration between their GPs and nephrologists, along with a trend towards improved kidney function stability.
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Importance: Identifying patients at risk of chronic kidney disease (CKD) progression may facilitate more optimal nephrology care. Kidney failure risk equations, including such factors as age, sex, estimated glomerular filtration rate, and calcium and phosphate concentrations, were previously developed and validated in 2 Canadian cohorts. Validation in other regions and in CKD populations not under the care of a nephrologist is needed.

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eGFR is a robust predictor of ESRD risk. However, the prognostic information gained from the past trajectory (slope) beyond that of the current eGFR is unclear. We examined 22 cohorts to determine the association of past slopes and current eGFR level with subsequent ESRD.

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Background: Reports of synchronous multiple primary cancers in patients with oral cancer have recently been increasing because of progress in radiographic diagnostic techniques. Multiple primary cancers in patients with oral cavity cancer mainly occur in the head and neck region, lung, and esophagus. 2-[18F]-fluoro-2-deoxy-D-glucose positron emission tomography is usually used to identify synchronous multiple primary cancers.

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Impact of the Triglycerides to High-Density Lipoprotein Cholesterol Ratio on the Incidence and Progression of CKD: A Longitudinal Study in a Large Japanese Population.

Am J Kidney Dis

December 2015

Steering Committee for "Design of the Comprehensive Health Care System for Chronic Kidney Disease (CKD) Based on the Individual Risk Assessment by Specific Health Checkup," Fukushima, Japan.

Background: The impact of the triglycerides to high-density lipoprotein cholesterol (TG:HDL-C) ratio on chronic kidney disease (CKD) is unclear.

Study Design: Longitudinal cohort study.

Setting & Participants: 124,700 participants aged 39 to 74 years in the Japanese Specific Health Check and Guidance System, including 50,392 men, 74,308 women, 102,900 without CKD, and 21,800 with CKD.

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Background: To evaluate more detailed information noninvasively through on diffusion and perfusion in prostate cancer (PCa) using triexponential analysis of diffusion-weighted imaging (DWI).

Methods: Sixty-three prostate cancer patients underwent preoperative 3.0 Tesla MRI including eight b-values DWI.

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