Publications by authors named "Satoko Yamada"

The current study proposed and evaluated "residual squeeze and excitation attention gate" (rSEAG), a novel network that can improve image quality by reducing distortion attributed to artifacts. This method was established by modifying the Cycle Generative Adversarial Network (cycleGAN)-based generator network using projection data for pre-reconstruction processing in digital breast tomosynthesis. Residual squeeze and excitation were installed in the bridge of the generator network, and the attention gate was installed in the skip connection between the encoder and decoder.

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We report a case of Sphingobium yanoikuyae bacteremia in an 89-year-old patient in Japan. No standard antimicrobial regimen has been established for S. yanoikuyae infections.

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Polymethylmethacrylate (PMMA) hollow fiber membranes are one of the synthetic polymer hollow fiber membranes used to the hollow fiber artificial kidney. A PMMA hollow fiber membrane (PMMA membrane) has unique properties including the uniform structure and the adsorption property. Hemodialyzers using PMMA membranes, Filtryzer®, were approved in Japan in 1977 and have been used worldwide for over 40 years and so is a historical hemodialyzer.

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Aim: Develop a proxy evaluation questionnaire for patients' family members and nurses to evaluate dignity expectations and satisfaction of patients with dementia.

Design: Cross-sectional study.

Method: A proxy questionnaire draft was prepared with 30 items on expectations for dignity and 23 items on satisfaction with dignity.

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is an organism occasionally isolated in humans but rarely causes bacteremia. We report the first case of cellulitis with bacteremia due to in a patient undergoing mantle-cell lymphoma. A 51-year-old man presented with a two-month history of fever and bilateral leg pain and redness.

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Previous studies have demonstrated that angry faces capture humans' attention more rapidly than emotionally positive faces. This phenomenon is referred to as the anger superiority effect (ASE). Despite atypical emotional processing, adults and children with Autism Spectrum Disorders (ASD) have been reported to show ASE as well as typically developed (TD) individuals.

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Polymorphisms in the neurotransmitter-related genes can be a major source of behavioral variations. We searched for polymorphic sites in chicken neurotransmitter-related genes and identified two variable number of tandem repeat (VNTR) loci encompassing the paralog of chicken serotonin transporter gene (5-HTT). Both intronic VNTR were highly polymorphic across chicken breeds and the other Galliformes species, even though predominant alleles were considerably different among breeds.

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The mechanism that initiates regeneration of pancreatic β-cells is not clear at present. The vagal nerve is implicated in the regulation of gastrointestinal functions, glucose metabolism and proliferation of pancreatic β-cells under physiological conditions. To elucidate the triggering mechanism of the regeneration of pancreatic β-cells, we examined the involvement of the vagal nerve.

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Antibiotic levels in serum are commonly used to guide antibiotic therapy. The antibiotic levels in peripheral lymph are a more accurate reflection of the efficacy of antibiotic penetration into the tissues of patients with complicated skin and soft-tissue infections. The pharmacokinetics of arbekacin sulfate (ABK) in peripheral lymph after systemic administration has not been studied.

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In Japan, the clinical nurse instructor is a staff nurse who teaches in clinical practicums. However, there is no consensus on the essential roles that clinical nurse instructors are expected to perform. We conducted a three-round Delphi survey to clarify the essential roles of the clinical nurse instructor in clinical practicums in undergraduate nursing education.

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Activin A is a differentiation factor for β-cells and is effective to promote β-cell neogenesis. Activin A is also an autocrine activator of pancreatic stellate cells, which play a critical role in fibrogenesis of the pancreas. Conophylline (CnP) is a natural compound, which reproduces the effect of activin on β-cell differentiation and promotes β-cell neogenesis when administered in vivo.

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Extracellular matrix (ECM) modulates differentiation of pancreatic β-cells during development. However, the mechanism by which ECM proteins modulate differentiation is not totally clear. We investigated the effect of ECM proteins on differentiation β-cells in vitro.

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The liver mass is controlled strictly and maintained constant in normal and pathological situations. An exception is observed after an administration of follistatin, which induces proliferation in intact liver. In the present study, we identified genes differentially expressed in proliferating liver caused by overexpression of follistatin-288.

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The neurochemical phenotypes of the transient receptor potential melastatin-8 (TRPM8)-immunoreactive afferent neurons innervating the rat urinary bladder were examined by using a highly sensitive tyramide signal amplification method, combined with wheat-germ agglutinin-horseradish peroxidase (WGA-HRP) retrograde tracing. TRPM8-immunoreactivity was detected in a small proportion of the WGA-HRP-labeled bladder afferent neurons in the dorsal root ganglia of the Th13-L1 (1.14%) and the L6-S1 (1.

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The present study was conducted to examine the effect of administration of conophylline (CnP) and betacellulindelta4 (BTCdelta4) on the beta-cell mass in neonatal streptozotocin-treated rats (neonatal STZ rats). STZ (100 microg/g) was injected into neonatal rats, and then CnP (2 microg/g) and/or BTCdelta4 (200 pmol/g) were administered to neonatal STZ rats for 1 week. The plasma glucose concentration was monitored, and an intraperitoneal glucose tolerance test (ipGTT) was performed on day 8 and at 8 weeks after the STZ injection.

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Previous studies have shown the efficacy of betacellulin (BTC) to promote beta-cell regeneration. Because of its short half-life, however, the effect of BTC may have been underestimated. This study was conducted to assess the effect of continuous administration of BTC on beta-cell regeneration.

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Background: Sweet taste receptor is expressed in the taste buds and enteroendocrine cells acting as a sugar sensor. We investigated the expression and function of the sweet taste receptor in MIN6 cells and mouse islets.

Methodology/principal Findings: The expression of the sweet taste receptor was determined by RT-PCR and immunohistochemistry.

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Betacellulin (BTC) is one of the members of the epidermal growth factor (EGF) ligand family of ErbB receptor tyrosine kinases. It is a differentiation factor as well as a potent mitogen. BTC promotes the differentiation of pancreatic acinar-derived AR42J cells into insulin-producing cells.

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The present study was conducted to establish a method to induce differentiation of bone marrow (MB)-derived mesenchymal cells into insulin-producing cells. When mouse BM-derived mesenchymal cells were cultured for 60 days in medium containing 10% fetal calf serum and 25 mM glucose, they expressed insulin. Addition of activin A and betacellulin (BTC) accelerated differentiation, and immunoreactive insulin was detected 14 days after the treatment.

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Aim: We investigated whether the quantitative parameters of systematic sextant biopsies were predictive of either adverse pathological findings or disease recurrence after radical prostatectomy (RP).

Methods: We retrospectively evaluated a total of 117 men with untreated prostate cancer whose needle biopsies were matched with RP specimens. The pretreatment parameters of the serum prostate-specific antigen (PSA), the PSA density, the percentage of positive biopsy cores, the percentage of cancer length and the percentage of Gleason grade 4/5 cancer in the biopsy were determined and compared with the pathological features of prostate cancer in RP specimens.

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Background: The purpose of this study was to determine the safety and immune responses of pre-operative personalized peptide vaccine for patients with localized prostate cancer.

Method: Ten human leukocyte antigen (HLA)-A24(+) patients with localized prostate cancer received weekly personalized peptide vaccine for six times with positive peptides (up to four kinds of peptides) from 16 kinds of vaccine candidates, followed by a retropubic radical prostatectomy (RRP). Eight patients with localized prostate cancer receiving RRP served as the control group.

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Adenovirus-mediated gene transfer of pancreatic duodenal homeobox transcription factor PDX-1, especially its super-active version (PDX-1/VP16), induces the expression of pancreatic hormones in murine liver and reverses streptozotocin-induced hyperglycemia. Histological analyses suggest that hepatocytes are the major source of insulin-producing cells by PDX-1 gene transfer, although the conversion of cultured hepatocytes into insulin-producing cells remains to be elucidated. The present study was conducted to address this issue.

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To apply cell transplantation for treatment of diabetes mellitus, a sufficient number of beta-cell sources are required. In the present study, we examined whether an epithelial cell line obtained from normal adult rat liver, namely hepatic stem-like (HSL) cells, which can be converted to both hepatocytes and billiary epithelial cells, could be a potential beta-cell source. The growth speed of HSL cells was rapid and these cells were easily expanded in vitro.

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