Publications by authors named "Hattori Yusuke"

Article Synopsis
  • This study investigates the effectiveness of different suturing methods (interrupted vs. continuous) and materials (Vicryl vs. Stratafix) for repairing the capsule in total joint arthroplasty using porcine skin as a substitute for human tissue.! -
  • The results indicate that continuous Vicryl sutures had the highest maximum failure load (465.81 N), while interrupted Vicryl and Stratafix had lower loads (275.52 N and 303.08 N, respectively), highlighting Vicryl's strength advantage.! -
  • The study concludes that while Vicryl is stronger, Stratafix, a barbed continuous suture, presents a viable alternative for capsule repair due to its different mechanical properties.
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Mucopolysaccharidosis II (MPS II) is a lysosomal storage disease caused by a deficiency in iduronate-2-sulfatase (IDS), leading to the accumulation of dermatan sulfate and heparan sulfate in lysosomes. Traditionally, genotyping of the gene has been conducted through exome sequencing, which fails to detect inversion variants. Consequently, when no pathogenic variants are detected in exons, additional PCR-based analysis is required.

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  • Anterior knee pain after total knee arthroplasty (TKA) often arises from improper patellar tracking, which can affect patient satisfaction; this study examines patellofemoral pressure (PFP) differences between patients with favorable versus impaired tracking.
  • A total of 44 patients with varus knee osteoarthritis were studied; those with impaired tracking showed higher lateral PFP compared to those with favorable tracking, particularly at certain degrees of knee flexion, and lateral retinacular release (LRR) helped reduce high lateral PFP in these patients.
  • It was found that specific radiographic parameters like patellar resection angle and Insall-Salvati ratio correlate with PFP values, suggesting these factors play a role
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Recently, augmenting the pulsation of the internal cerebral vein (ICV) has been reported to be a predictor of premature intraventricular hemorrhage (IVH); however, prophylaxis for IVH has not yet been established. Venous pulsation is a marker of central venous pressure elevation and may be improved after heart failure treatment. Herein, we report two cases of low-birth-weight infants (29 weeks and 31 weeks of gestational age), who exhibited improvements in ICV pulsation with relief of hemodynamically significant patent ductus arteriosus (hs-PDA) following indomethacin administration.

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  • This study investigates the tensile strength of Renerve® collagen-based conduits used to bridge peripheral nerve injuries, highlighting concerns about their material strength.
  • The research tested four different fixation methods on chicken sciatic nerves, finding that traditional end-to-end suturing provided significantly better strength than Renerve® with fewer sutures.
  • Results showed that using Renerve® conduits had specific failure patterns, suggesting that a postoperative period of restricted movement might be necessary to enhance recovery and effectiveness.
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Sulfur-bridged cationic diazulenomethenes were synthesized and exhibited high stability even under basic conditions due to the delocalization of positive charge over the whole π-conjugated skeleton. As a result of the effective delocalization and the absence of orthogonally oriented bulky substituents, the cationic π-conjugated skeletons formed a π-stacked array with short interfacial distances. A derivative with SbF as a counter anion formed a charge-segregated assembly in the crystalline state, rather than the generally favored charge-by-charge arrangement of oppositely charged species based on electrostatic interactions.

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  • Proximal phalanx fractures of the big toe that involve angulation or dislocation require surgical intervention, including repositioning and fixation.
  • A 45-year-old male patient with a left big toe fracture and dislocation was successfully treated using the innovative ICHI-FIXATOR® system, which employs wire-connected external fixation.
  • After surgery, the patient quickly regained the ability to walk, had wires removed four weeks later, and reported no pain during activities eight months post-op, indicating the fixator's effectiveness for toe fracture management.
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Bite injuries frequently occur on human hands. Human bite injuries to the hand may lead to an infection because of limited soft tissue protection and wound contamination. However, no studies have reported severe bite injuries on hands treated by flaps.

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Background: An unstable trochanteric femoral fracture is a serious injury, with a 1-year mortality rate of 5.4% to 24.9%, for which there is currently no standard treatment method.

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Mucopolysaccharidosis II (MPS II) is an X-linked, recessive, inborn metabolic disorder caused by defects in iduronate-2-sulfatase (IDS). The age at onset, disease severity, and rate of progression vary significantly among patients. This disease is classified into severe or mild forms depending on neurological symptom involvement.

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Objective: The effects of granule size of raw materials on tablet hardness (TH) and weight (TW) in the continuous tablet manufacturing process (CTMP) were investigated using near-infrared spectroscopy (NIRS).

Methods: Granule materials of different sizes were prepared by extrusion granulation from a standard granule formula powder containing lactose/starch and 4.5% acetaminophen.

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Infection with Mycobacterium marinum has several different clinical presentations. Most commonly, it appears as a solitary papulonodular lesion on an extremity. A rare presentation of osteoarticular M.

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Article Synopsis
  • Hydroxyapatite (HA) augmentation is evaluated for its effectiveness in treating trochanteric femoral fractures, involving a study of 85 patients, with 45 receiving HA and 40 not receiving it.
  • The study measured various factors including insertion torque of lag screws, bone mineral density, and screw telescoping after surgery, with results showing that the HA group had better outcomes than the non-HA group regarding stability and screw movement.
  • All fractures in the study healed without complications, suggesting that HA augmentation improves resistance to instability and can enhance treatment for trochanteric femoral fractures.
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This study aimed to investigate the relationship between postoperative clinical results and long-term morphological changes in patients with carpal tunnel syndrome (CTS) as observed on magnetic resonance imaging (MRI) before and after open carpal tunnel release (OCTR). We retrospectively analysed data for 28 hands that had undergone OCTR with at least 24 months of follow-up data. Two-point discrimination (2PD) test results were examined for the first three fingers, as were the distal motor latency (DML) and sensory conduction velocity (SCV) of the median nerve.

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Potter syndrome, first reported in 1946 by Edith Potter, refers to fatal cases of bilateral renal aplasia with pulmonary hypoplasia, peculiar facial features, and limb deformities. Presently, patients with oligohydramnios showing similar pathological manifestations due to oligohydramnios caused by conditions other than bilateral renal aplasia have been reported, and are known as the Potter sequence. There are limited studies and unclear guidelines on the safest delivery time and detailed postpartum management for patients with the Potter sequence.

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  • A new cation was created by adding methyl groups to a zwitterionic compound called squarylium, resulting in unique ion pairs with various anions.
  • The ion pairs showed different light absorption and emission properties, influenced by their arrangement into J- and H-aggregates when dispersed.
  • In solid form, the arrangement of these cation-anion pairs led to enhanced electric conductivity along a specific stacking axis, thanks to reduced electrostatic repulsion between the cations.
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Background: Diagnosis of cardiac sarcoidosis (CS) is sometimes difficult due to a low positive rate of epithelioid granulomas by endomyocardial biopsy (EMB). Accordingly, Japanese guidelines can allow the CS diagnosis using clinical data alone without EMB results (clinical CS) since 2006. However, little is known about prognosis and outcome of clinical CS.

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In this work, we optimized classification algorithms and the hyperparameters for screening falsified and substandard amoxicillin capsules. The distribution of low-quality medical products is a serious problem, especially in low- and middle-income countries. Near-infrared (NIR) spectroscopy has been proposed as the first choice for a screening device.

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The process of fluidized bed drying of granules was comparatively evaluated by on-line real-time measurements of granule moisture content (MC) using near-infrared spectroscopy (NIR) and audible acoustic emission (AAE). The extruded granules were prepared by kneading a powder blend containing lactose, starch, crystalline cellulose, and riboflavin, with water. The MC of the granules (while they were dried at 35 °C in a fluidized bed dryer) was monitored simultaneously with NIR and AAE.

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To design a controlled drug release preparation based on a safe natural material, a Konjac glucomannan (KGM) mixture containing 16.0 % calcium hydroxide (Ca(OH)) was ground in a planetary ball mill for 0-120 min. The mechanochemical effect on the physicochemical properties of the KGM ground product was investigated by Fourier-transform infrared spectroscopy (FT-IR), powder X-ray spectroscopy, scanning electron microscopy with energy-dispersive X-ray spectroscopy, and drug release testing.

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The stability of singly or multiply negatively charged π-conjugated organic compounds is greatly influenced by their electronic delocalization. Herein, we report a strategic methodology for isolation of a mysterious compound. The isolated compounds, a pyreno[4,5-]pyrrole monoanion and pyreno[4,5-:9,10-']dipyrrole dianion, were highly stable under ambient conditions due to high delocalization of the negative charge over multiple electron deficient C[triple bond, length as m-dash]N groups and pyrene π-scaffolds and allowed purification by column chromatography.

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Background: Past studies have shown the sex-related difference in the efficacy of cardiac resynchronization therapy (CRT). However, the data for cardiac sarcoidosis (CS) are limited.

Objective: The purpose of this study was to assess the sex-related prognostic differences in CS patients with CRT.

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Article Synopsis
  • The study investigates the conversion of powder into tablets using a single-step injection molding (IM) process to create coamorphous tablets from basic loratadine and different organic acids.
  • It highlights the improved dissolution of these coamorphous tablets compared to pure loratadine, attributed to the ionic interactions between the drug and acids.
  • The research also utilizes FT-IR and terahertz spectroscopies to analyze the molecular interactions and stability of the tablets, showing that their stability is linked to the strength of these interactions.
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The objective of this work is to demonstrate the potential of near-infrared spectroscopy for common screening of falsified medicines in the field by means of a device-independent universal discrimination approach. In order to provide a useful discrimination tool to protect people from low-quality medical products, not only is a low-cost and portable screening device necessary, but a reference library is also essential. The authors believe that a device-dependent reference library inhibits near-infrared spectroscopy from becoming a popular screening tool.

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