Publications by authors named "Yuko Mihara"

Article Synopsis
  • Research continues to uncover unknowns in cell division mechanisms, leading to the identification of leucine zipper protein 1 (LUZP1) as a novel protein that regulates this process.
  • LUZP1 was found to colocalize with the chromosomal passenger complex (CPC) during specific phases of mitosis and is influenced by CPC activity and kinesin family member 20A (KIF20A).
  • The study reveals that LUZP1 interacts with death-associated protein kinase 3 (DAPK3) and myosin light chain 9 (MYL9), ultimately regulating cytokinesis by affecting the constriction velocity of the contractile ring.
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Article Synopsis
  • CRISPR/Cas9 is an advanced gene-editing tool known for its ability to create gene knockouts and targeted knock-ins, but efficiency and precision need improvement for broader practical applications.* -
  • This study introduces a method using flow cytometry (FCM) to easily monitor genome editing events in the L1CAM gene across various human cell lines, allowing for quick detection of L1CAM abrogation.* -
  • The L1CAM-based assay is faster and more sensitive than existing methods for measuring targeted knock-in efficiency, helping researchers refine and enhance genome editing techniques.*
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Article Synopsis
  • Targeted knock-in using CRISPR/Cas9 technology holds potential for applications in medical and agricultural research, but it needs improved efficiency and precision for practical use.
  • The researchers developed the CD55 correction assay to monitor gene correction events by creating reporter clones that allow detection of changes in the CD55 gene through flow cytometry.
  • This study validates the CD55 correction assay as a reliable method for quantifying targeted knock-in efficiency, enhancing accuracy in research by addressing biases related to specific cell lines and gene locations.
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Article Synopsis
  • Tandem Paired Nicking (TPN) is a genome editing technique that allows precise targeted knock-ins with minimal interference from DNA damage responses.
  • The method involves using Cas9 nickases to create two specific nicks on a DNA strand, allowing for efficient homology-directed recombination between the genome and donor DNA.
  • This study identifies key factors for optimizing TPN, including using 1700-2000 bp donor DNAs and 20-nt-long spacers for effective cleavage, which enhances the precision and efficiency of targeted knock-in methodologies.
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Article Synopsis
  • The study focuses on improving targeted knock-in techniques using CRISPR/Cas systems by creating a reporter system based on the PIGP gene, essential for GPI-anchor biosynthesis.
  • Researchers deleted one PIGP allele and introduced a mutation in the other allele in human cell lines, allowing them to monitor knock-in events via flow cytometry by detecting GPI anchors.
  • The findings confirmed the effectiveness of this reporter system in quantifying targeted knock-in efficiency, demonstrating a slight improvement in efficiency using a modified tandem paired nicking procedure.
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Various biomarkers have been proposed for sepsis; however, only a few become the standard. We previously reported that plasma histidine-rich glycoprotein (HRG) levels decreased in septic mice, and supplemental infusion of HRG improved survival in mice model of sepsis. Moreover, our previous clinical study demonstrated that HRG levels in septic patients were lower than those in noninfective systemic inflammatory response syndrome patients, and it could be a biomarker for sepsis.

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Background: Respiratory compromise (RC) including hypoxia and hypoventilation is likely to be missed in the postoperative period. Integrated pulmonary index (IPI) is a comprehensive respiratory parameter evaluating ventilation and oxygenation. It is calculated from four parameters: end-tidal carbon dioxide, respiratory rate, oxygen saturation measured by pulse oximetry (SpO), and pulse rate.

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Purpose: Compared with open thoracotomy, minimally invasive esophagectomy (MIE) methods, such as transhiatal or thoracoscopic esophagectomy, likely have lower morbidity. However, the relationship between intraoperative fluid management and postoperative complications after MIE remains unclear. Thus, we investigated the association of cumulative intraoperative fluid balance and postoperative complications in patients undergoing MIE.

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Background: Intraoperative oxygen management is poorly understood. It was hypothesized that potentially preventable hyperoxemia and substantial oxygen exposure would be common during general anesthesia.

Methods: A multicenter, cross-sectional study was conducted to describe current ventilator management, particularly oxygen management, during general anesthesia in Japan.

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Tyrosol (Tyr) is a natural phenolic antioxidant with diverse biological activities. We compared the anti-inflammatory effects of intravenously administered Tyr versus prednisolone (PSL) in an endotoxin-induced uveitis (EIU) rat model. Intravenous administration of 100 mg/kg Tyr was performed 2 hr before, simultaneously and 2 hr after lipopolysaccharide (LPS) injection.

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We evaluated the anti-inflammatory effect of tyrosol (Tyr) on endotoxin-induced uveitis (EIU) in rats. EIU was induced in male Lewis rats by subcutaneous injection of lipopolysaccharide (LPS). Tyr (10, 50 or 100 mg/kg) was intravenously injected 2 hr before, simultaneously and 2 hr after LPS injection.

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We recently showed that tactile stimulation (tickling) accompanied by positive emotion altered the expression of many genes in the rat hypothalamus (Hori et al., 2009 [15]). In this study, the effect of repeated tickling on gene expressions of the rat salivary gland was examined.

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Acute subdural hematoma (ASDH) is a critical condition following the onset of traumatic brain injury, and it is essential to immediately reduce elevated intracranial pressure (ICP). Single burr hole surgery/twist drill craniostomy is commonly performed in patients with ASDH as an emergency surgical intervention, usually preceding decompressive craniotomy. A novel method using a cerebrospinal fluid (CSF) drainage catheter kit for rapid drainage of ASDH is described.

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Orexins are neuropeptides that have a wide range of physiological effects, and recent studies have suggested that the orexin system may be involved in traumatic brain injury. However, the expression and localization of orexin receptors have not been examined yet under brain injury conditions. In the present study, we used immunohistochemical techniques to investigate the expression of orexin-1 receptor (OX1R) and its time-dependent changes in the mouse brain after controlled cortical impact (CCI) injury.

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Introducing a C(4)-like pathway into C(3) plants is one of the proposed strategies for the enhancement of photosynthetic productivity. For this purpose it is necessary to provide each component enzyme that exerts strong activity in the targeted C(3) plants. Here, a maize C(4)-form phosphoenolpyruvate carboxylase (PEPC, EC 4.

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Lipid peroxidation is caused by reactive oxygen species (ROS) and is involved in traumatic brain injury (TBI). Consequently, a therapeutic strategy for TBI may be to control lipid peroxidation. The only drug approved to date for blocking lipid peroxidation is edaravone (MCI-186), a novel free-radical scavenger shown to exert neuroprotective effects in acute ischemic stroke.

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