Publications by authors named "Haraguchi R"

Background: Asthma is a heterogeneous disease with variable response to treatment. Genetic backgrounds are involved in the severity of type 2 asthma, but their effects on responses to biologics remain unknown. This study aimed to clarify the role of genetic factors in response to biologics in patients with severe asthma.

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This study introduces a novel method for fabricating multicavity, honeycomb-shaped collagen aerogels characterized by continuous pores. We have taken a unique approach to lyophilizing collagen hydrogels, which are UV-irradiated collagen solutions gelatinized in a carbonate buffer solution. The focus of this study was to investigate the effect of UV irradiation times on collagen solutions on collagen hydrogels and aerogels.

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Background: Postoperative assessment following reverse total shoulder arthroplasty (rTSA) typically involves plain radiographs to evaluate implant positioning parameters, such as humeral distalization and lateralization along with medialization and distalization of the center of rotation (COR). However, the precision of these radiographic measurements remains unclear. This study aimed to validate the accuracy of radiographic two-dimensional (2D) measurements compared to three-dimensional (3D) surface model-based measurements derived from CT data for evaluating postoperative parameters in rTSA.

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Bone is a unique organ crucial for locomotion, mineral metabolism, and hematopoiesis. It maintains homeostasis through a balance between bone formation by osteoblasts and bone resorption by osteoclasts, which is regulated by the basic multicellular unit (BMU). Abnormal bone metabolism arises from an imbalance in the BMU.

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This study reveals the pH-responsive behavior of collagen hydrogels prepared using ultraviolet (UV) irradiation with riboflavin as a photosensitizer. By varying the UV exposure time, we modulated the crosslinking density, thereby influencing the mechanical properties and pH responsiveness. Rheological analysis confirmed successful network formation, whereas swelling studies revealed significant pH-dependent behavior, with maximum swelling at a pH of four and minimal swelling above a pH of six, demonstrating partial reversibility over multiple pH cycles.

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Background: Recently, the issue of subacromial notching, caused by acromial impingement has been reported. The purpose of this study was to assess the impact of differences in the distance between the glenosphere center and the greater tuberosity (DGT) and the distance between the glenosphere center and the acromion (DA) on the closest distance between the greater tuberosity and the acromion during active abduction in shoulders with reverse total shoulder arthroplasty (RSA).

Methods: Eleven shoulders with semiinlay RSA were analyzed.

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While the rapid decrease in estrogen is well known as the main cause of postmenopausal osteoporosis in women, the precise pathogenesis of senile osteoporosis in the elderly regardless of gender is largely unknown. The age-related epigenetic regulation of receptor activator NF-κB (RANK) gene expression was investigated with the use of a high-passaged mouse osteoclast progenitor cell line, RAW264.7, as an model of aging.

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is a globally distributed wood decay fungus that causes heartwood decay in several tree species. We investigated the occurrence of fruiting bodies in Japan for two years and six months to characterize their biology. The fruiting bodies matured in autumn and occurred on living , , , and trees, as well as on dead trees and soil.

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In this study, the high electrophilicity of carbonyl carbons attached to cationic heterocycles was observed. Triazolium-substituted esters underwent catalyst-free amidation with aliphatic amines at -50 °C and reduction with NaBH at -100 °C. The origin and generality of the high reactivity of these esters were systematically investigated.

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Colorectal cancer (CRC) liver metastasis, albeit a stage-IV disease, is completely curable by surgical resection in selected patients. In addressing the molecular basics of this phenomenon, differentially expressed genes at primary and liver metastatic sites were screened by RNA sequencing with the use of paraffin-embedded surgical specimens. Chemokine C-C motif ligand 1 (CCL1), a chemotactic factor for a ligand of the chemokine C-C motif receptor 8 (CCR8), was isolated as one of the differentially expressed genes.

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Light-responsive hydrogels containing light-thermal convertible pigments have received interest for their possible applications in light-responsive shutters, valves, drug delivery systems, etc. However, their utility is limited by the slow response time. In this study, we investigated the use of micro-nano bubble water as a preparation solvent to accelerate the volume phase transition kinetics of poly(N-isopropylacrylamide-co-acrylic acid) (PNIPAM-co-AAc) hydrogels.

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Background: Obstructive sleep apnea (OSA) is one of the major co-morbidities and aggravating factors of asthma. In OSA-complicated asthma, obesity, visceral fat, and systemic inflammation are associated with its severity, but the role of bronchial hyperresponsiveness (BHR) is unclear. We investigated the involvement of BHR and mediastinal fat width, as a measure of visceral fat, with OSA severity in patients with OSA and asthma-like symptoms.

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Whenever houses are demolished or disasters occur, large quantities of building materials are discharged, which may contain asbestos. To prevent the damage caused by asbestos exposure, a rapid asbestos presence confirmation method is required at demolition sites or temporary disaster storage sites. It is difficult to confirm the presence of asbestos in waste building materials by simple observation.

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The liver is known to possess remarkable regenerative potential, but persistent inflammation or severe acute injury can lead to liver fibrosis and incomplete regeneration, ultimately resulting in liver failure. Recent studies have shown that the axis of two types of CXCL12 receptors, CXCR4 and CXCR7, plays a crucial role in liver fibrosis and regeneration. The present study aimed to investigate the regulatory factors involved in CXCR4 expression in injured liver.

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Article Synopsis
  • Maintaining stable chromatin is crucial for various cellular processes, including genome stability, transcription, replication, DNA repair, and chromosome segregation during cell division.
  • Research over the last decade highlights that modifications to histone proteins play a critical role in these essential cellular functions and processes.
  • The review discusses the normal functions of histone proteins, their alterations in diseases, and underscores the significance of immunohistochemistry in diagnosing pathological conditions related to these histone changes.
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Hollow collagen gels are promising materials for drug/cell delivery systems to promote tissue regeneration because they may be able to function as carriers for these types of loads. Controlling the cavity size and swelling suppression is essential to expand the applications and improve the usability of such gel-like systems. We investigated the effects of UV-treated collagen solutions as a pre-gel aqueous mixture on the formation and properties of the hollow collagen gels in terms of their preparation range limits, morphology, and swelling ratio.

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Macroscopic spatial patterns were formed in calcium alginate gels when a drop of a calcium nitrate solution was placed on the center of a sodium alginate solution on a petri dish. These patterns have been classified into two groups. One is multi-concentric rings consisting of alternating cloudy and transparent areas observed around the center of petri dishes.

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  • Detecting DNA methylation in individual cells is crucial due to the variability of epigenetic modifications, leading to the need for research that maintains tissue structure.
  • A new histochemical technique utilizing ICON probes allows researchers to specifically identify single methylated cytosines in a sequence-dependent way through optimized potassium osmate treatment.
  • This ICON-mediated method has successfully demonstrated DNA methylation detection in both cultured cells and mouse cerebellar tissue, representing a significant advancement in epigenetic research methodologies.
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One-pot gelation in capillary glass tubes with carbonate-based buffer solution allows the formation of hollow collagen gels (collagen tubes) with an outer diameter of 1 mm or less. The preparation conditions of collagen concentration, buffer concentration, and capillary diameter impacted the ratio and size of the hollow gel and allowed for morphological control of the cavity. The morphology of the hollows suggests that their vacancies are the result of macroscopic phase separation and pinning due to gelation.

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Article Synopsis
  • Over recent decades, researchers have cataloged tumor-related genes, leading to advancements in oncogene panel testing that can assess gene expression quickly.
  • Alongside DNA mutations, epigenetics plays a crucial role in disease development and progression, emphasizing the need to understand both the genome and epigenome.
  • This review aims to compile extensive knowledge on various epigenetic factors like histone modification and RNA influences, showcasing their role in interpreting diseases and informing treatment options.
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Pericytes are pluripotent cells that enclose the endothelium of small blood vessels in the whole body. These cells are thought to play a limited role in vascular development and blood pressure regulation; however, current evidence from numerous studies suggests several significant biologic aspects of pericytes in animals. One viewpoint is that pericytes are also known as potential cellular origin of multiple soft tissue tumors.

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We report a fluoride-mediated nucleophilic aromatic amination of chloro-1-1,2,3-triazolium salts with aliphatic amines. The reaction proceeded under mild reaction conditions to provide amino-1,2,3-triazolium salts with various functional groups, which can be utilized for further transformations. Moreover, it was found that an amino-1,2,3-triazolium salt was transformed via deprotonation into the N-heterocyclic imine (NHI), which exhibited the excellent catalytic activity for the cyanosilylation of acetophenone with trimethylsilyl cyanide.

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Article Synopsis
  • Macrophages play a dual role in bone health by being the precursors to osteoclasts and influencing bone metabolism, including formation and regeneration after fractures.
  • The study used a specialized mouse model to show that depleting macrophages led to weakened blood vessel growth, which is crucial for both new bone and tissue formation.
  • Key genes identified, such as Tgfbi and Plau, indicate that macrophages influence healing through secreted factors, with inhibiting specific pathways disrupting bone healing processes.
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Unlabelled: The shape of the hairline is very important in a person's identity and in determining the impression they make. Reports on the morphology of a normal hairline are still scarce. Differences in the shape of male and female hairlines in Japanese subjects are discussed in this study.

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Resting-state neural oscillations are used as biomarkers for functional diseases such as dementia, epilepsy, and stroke. However, accurate interpretation of clinical outcomes requires the identification and minimisation of potential confounding factors. While several studies have indicated that the menstrual cycle also alters brain activity, most of these studies were based on visual inspection rather than objective quantitative measures.

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