Publications by authors named "Nagano C"

This study aimed to evaluate the antihyperglycemic and antioxidant activities of the lectin isolated from (BTL). Diabetes was induced in Wistar rats through low-dose streptozotocin injections. Following the confirmation of hyperglycaemia, the animals were treated with 150 mM NaCl, glibenclamide, or BTL at 600 or 900 mg/kg.

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This study aimed to assess the combined antibacterial effect of lectins and antibiotics on S. aureus ATCC 25923, multidrug-resistant E. coli ATCC 11303 and S.

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Article Synopsis
  • Isotonic fluids, particularly saline and balanced crystalloids, are important for hydration during pediatric kidney biopsies, but there's no clear preference between them.
  • A study at Kobe University Hospital evaluated both types of fluids in patients aged 1-19 during kidney biopsies from April 2021 to March 2023, measuring outcomes like hyponatremia and electrolyte balance.
  • Results showed no cases of hyponatremia in either group, with saline leading to higher serum chloride and lower bicarbonate levels, but these changes had minimal clinical significance.
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Objective: Service evaluation of an urban 'Hospital at Home' service which provides care in patients' homes that would traditionally be delivered in the hospital setting.

Design: Retrospective longitudinal review of routinely collected data recorded contemporaneously for clinical use, analysed to elicit utilisation patterns and service impact.

Setting: A paediatric 'Hospital at Home' service delivered across two large acute hospitals, treating a total of 4427 patients across both primary and secondary care in South London from January 2018 to June 2022.

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Article Synopsis
  • A novel lectin called AcrL was isolated from the marine sponge Aiolochroia crassa, which specifically binds to glycans with sialic acid and shows a typical galectin structure with carbohydrate-binding sites.
  • AcrL demonstrated strong antibacterial effects by inhibiting biofilm formation in bacteria such as Staphylococcus aureus and Escherichia coli, with varying concentrations required for effectiveness.
  • The lectin also enhances the efficacy of antibiotics and damages bacterial membranes, suggesting its potential as a new antibacterial agent in the fight against infections.
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Key Points: Patients with both and variants exhibited poor renal prognosis compared with those with autosomal dominant Alport syndrome. The proportion of patients with digenic Alport syndrome was 1.7% among all patients with Alport syndrome.

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Background And Hypothesis: Male patients with X-linked Alport syndrome (XLAS) generally develop end-stage kidney disease in early or middle adulthood and show distinct genotype-phenotype correlations. Female patients, however, show various phenotypes ranging from asymptomatic to severe with no genotype-phenotype correlations. However, the factors affecting the severity of XLAS in female patients are unclear.

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Background: In patients with steroid-resistant nephrotic syndrome (SRNS), the presence of monogenic variants influences therapeutic strategies. Large cohort studies reported the detection of monogenic variants in approximately 30% of patients with SRNS. However, these cohorts included many patients, such as those with symptomatic proteinuria, who did not meet the strict diagnostic criteria for pediatric nephrotic syndrome (NS).

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The Wilms tumor 1 (WT1) gene was first identified in 1990 as a strong candidate for conferring a predisposition to Wilms tumor. The WT1 protein has four zinc finger structures (DNA binding domain) at the C-terminus, which bind to transcriptional regulatory sequences on DNA, and acts as a transcription factor. WT1 is expressed during kidney development and regulates differentiation, and is also expressed in glomerular epithelial cells after birth to maintain the structure of podocytes.

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Faced with the emergence of multiresistant microorganisms that affect human health, microbial agents have become a serious global threat, affecting human health and plant crops. Antimicrobial peptides have attracted significant attention in research for the development of new microbial control agents. This work's goal was the structural characterization and analysis of antifungal activity of chitin-binding peptides from and seeds on the growth of and species.

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Article Synopsis
  • The study introduced a new microbiological method using a microtiter plate to detect 10 types of sulfonamide drugs in chicken muscles, eggs, and prawns, proving to be eco-friendly compared to traditional methods.
  • The method involved a bioassay for initial residue detection, followed by confirmation and quantification using LC-MS/MS, achieving detection limits that meet Japan's minimum residual limits (MRLs).
  • Quality control tests showed effective performance of the bioassay, and a survey found sulfamethoxazole in one prawn sample out of 91 tested, demonstrating the method's practical application.
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This article aims to provide a historical overview of how workplace safety and health legislations in Singapore and Japan have evolved, and perform a comparative analysis of the occupational health systems where work-related medical examinations and health screening are concerned. The discourse is centered on three key themes - coverage, comprehensiveness, and continuity of care. The comparative analysis was performed based on secondary data obtained from open-source platforms.

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Background: Membranoproliferative glomerulonephritis (MPGN) can be divided into immune-complex MPGN (IC-MPGN) and C3 glomerulopathy (C3G), which includes dense deposit disease (DDD) and C3 glomerulonephritis (C3GN). These conditions result from abnormalities in different complement pathways and may lead to different prognoses. However, there are limited studies describing the respective clinical courses.

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In this study, we purified a lectin isolated from the seeds of Dioclea bicolor (DBL) via affinity purification. Electrophoresis analysis revealed that DBL had three bands, α, β, and γ chains, with molecular masses of approximately 29, 14, and 12 kDa, respectively. Gel filtration chromatography revealed that the native form of DBL had a molecular mass of approximately 100 kDa, indicating that it is a tetramer.

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We present a case of nephronophthisis 13 that resulted from WDR19 variants. The patient, a nine-year-old Japanese boy, had detection of mild proteinuria during a school urine screening. Urinalysis revealed mild proteinuria without hematuria.

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Objective: To review the historical aspects of compensation system for workers with pneumoconiosis who developed lung cancer.

Methods: Materials and papers published on the compensation system as discussed in administrative meetings were utilized.

Results: Legal claims for compensation for lung cancer among individuals with pneumoconiosis increased during the period of rapid economic growth in Japan.

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Article Synopsis
  • The study focuses on developing a screening method to detect cereulide, a toxin from Bacillus cereus, in fried rice, which is important for identifying food poisoning cases even when the bacteria itself may not be found.
  • The researchers used the QuEChERS extraction method along with LC-MS/MS to identify and quantify cereulide, achieving accuracy levels between 88% and 89%, and establishing a limit of quantification at 2 µg/kg.
  • Results indicated that the method effectively removed interfering compounds and provided reliable quantification, meeting Japanese validation guidelines, thus showing potential as a dependable tool for checking fried rice for cereulide contamination.
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The present study evaluated the effects of heat stress on reproductive parameters of hairy rams. Six animals were subjected to scrotal insulation during four consecutive nights (6 PM - 6 AM). Day (D) 0 was the first day of insulation.

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Pseudo-Bartter/Gitelman syndrome (PBS/PGS) is a disorder that presents with hypokalemia and metabolic alkalosis resembling Gitelman syndrome (GS) due to secondary factors, such as lifestyle and /or medicines. Notably, PBS/PGS is more likely to cause renal dysfunction than GS. We report the first case of PBS/PGS due to long-term laxative abuse leading to end-stage kidney disease (ESKD).

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A 6-year-old boy was diagnosed with chromosomal abnormalities (48,XYY, + 21[11]/46,XY[19]) at 4 months of age after a physical examination revealed an undescended testis and a dwarf penis. He also had mild renal dysfunction and severe proteinuria, and kidney biopsy at 2 years of age revealed focal segmental glomerulosclerosis. Genetic analysis to investigate suspected WT1 gene abnormalities revealed a novel variant in NM_024426.

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Article Synopsis
  • A new method using LC-MS/MS was developed to simultaneously detect five types of carbapenem antibiotics (biapenem, doripenem, ertapenem, imipenem, meropenem) in both raw and pasteurized bovine milk samples.* -
  • The method involved chromatographic separation on a specialized column, extraction processes to remove lipids and proteins, and validation according to Japanese guidelines, showing good accuracy and reproducibility.* -
  • Testing of 60 milk samples from Tokyo found no traces of the carbapenems, indicating the method's effectiveness for routine monitoring of these antibiotics in milk.*
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A new lectin from marine sponge Ircinia strobilina, denominated IsL, was isolated by combination of affinity chromatography in Guar gum matrix followed by size exclusion chromatography. IsL was able to agglutinate native and enzymatically treated rabbit erythrocytes, being inhibited by galactosides, such as α-methyl-D-galactopyranoside, β-methyl-D-galactopyranoside and α-lactose. IsL hemagglutinating activity was stable at neutral to alkaline pH, however the lectin loses its activity at 40° C.

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forms biofilms, a structure that protects bacterial cells, conferring more resistance to difficult treatment. Synthetic peptides surge as an alternative to overcome the biofilm of multidrug-resistant pathogens. -CBP-PepI, when combined with Ciprofloxacin, reduced preformed biofilm by 50% at low concentrations (0.

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Article Synopsis
  • - A genetic variant in the PAX2 gene is linked to renal coloboma syndrome and conditions like focal segmental glomerulosclerosis, which affects kidney function and structure.
  • - An 8-year-old boy exhibited symptoms of kidney issues, including proteinuria and decreased function, with a family history of similar renal conditions affecting multiple relatives.
  • - Genetic testing revealed a specific PAX2 mutation in both the patient and his father, which may lead to defective kidney cells (podocytes) and contribute to abnormal changes in the kidney’s protective layer.
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