Publications by authors named "Koeda S"

Background: Tomato leaf curl New Delhi virus (ToLCNDV) (family Geminiviridae, genus Begomovirus) is a significant threat to cucumber (Cucumis sativus) production in many regions. Previous studies have reported the genetic mapping of loci related to ToLCNDV resistance, but no resistance genes have been identified.

Results: We conducted map-based cloning of the ToLCNDV resistance gene in cucumber accession No.

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Tomato yellow leaf curl virus (TYLCV) is a begomovirus (genus , family ) transmitted persistently by the whitefly . It causes tomato yellow leaf curl disease (TYLCD), resulting in significant yield losses worldwide. TYLCD is controlled mainly by using F1 hybrid tomato cultivars harboring the TYLCV resistance gene .

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Introduction: Studies directly relating radiological findings to the risk of postoperative wound infection (PWI) in impacted mandibular third molars (M3) are limited and poorly understood. This study aimed to clarify the radiological risk of PWI.

Materials And Methods: Twenty-six patients who developed PWI after M3 extraction were retrospectively analyzed using orthopantomography (OPG) and computed tomography (CT) before M3 extraction to determine the association between M3 impaction status and PWI.

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The transcript level of alcohol acyltransferase 1 (AAT1) may be the main factor influencing the variations in volatile esters that characterizing the fruity/exotic aroma of pepper fruit. Volatile esters are key components for characterizing the fruity/exotic aroma of pepper (Capsicum spp.) fruit.

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Introduction: Despite the role of transmembrane protease, serine 2 (TMPRSS2) in facilitating the entry of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the primary cause of the global COVID-19 pandemic, the interaction of extracellular and intracellular proteases in this process remains poorly elucidated. Thus, we monitored the salivary expression concentration (SEC) of TMPRSS2 and its inhibitor, alpha-1 antitrypsin (A1AT), and investigated whether oral inflammatory diseases affected the SEC of both proteins.

Materials And Methods: We collected saliva samples before and after surgical treatment of inflammatory cystic diseases (radicular and inflammatory dentigerous cysts) in 25 patients.

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The global dissemination of the Israel (IL) and mild (Mld) strains of tomato yellow leaf curl virus (TYLCV) (family , genus ) is a major threat to tomato production in many regions worldwide. The use of resistant hybrid cultivars bearing the dominant resistance genes , , and has become a common practice for controlling tomato yellow leaf curl disease (TYLCD) caused by TYLCV. However, TYLCD symptoms have been sporadically observed in resistant cultivars grown in seasons when temperatures are high.

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A begomovirus resistance gene Pepy-2 encoding the DFDGD-Class RNA-dependent RNA polymerase 3a was identified in pepper (C. annuum) through the forward and reverse genetic analyses. In several countries throughout the world, the whitefly-transmitted begomovirus causes massive yield losses in pepper (Capsicum spp.

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Introduction: Keratinized lesions have been a conceivable false-negative (FN) factor in oral exfoliative cytology (OEC); however, other factors are poorly analyzed. In this study, we aimed to identify the factors influencing the accuracy of OEC and FNs focusing on the lesion characteristics, patient background, and surgeon factors in oral potentially malignant disorders (OPMD).

Material And Methods: We retrospectively studied 44 patients who underwent both OEC and histopathological diagnosis.

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A begomovirus resistance gene pepy-1, which encodes the messenger RNA surveillance factor Pelota, was identified in pepper (C. annuum) through map-based cloning and functional characterization. Pepper yellow leaf curl disease caused by begomoviruses seriously affects pepper (Capsicum spp.

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The development of techniques capable of using membrane proteins in a surfactant-free aqueous buffer is an attractive research area, and it should be elucidated for various membrane protein studies. To this end, we examined a method using new solubilization surfactants that do not detach from membrane protein surfaces once bound. The designed solubilization surfactants, DKDKCK-PA ( = 5, 7, and 18), consist of two parts: one is the lipopeptide-based solubilization surfactant part, DKDKCK, fand the other is the covalently connected linear polyacrylamide (PA) chain with different values of 5, 7, or 18 kDa.

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Tomato yellow leaf curl virus (TYLCV), a monopartite begomovirus that originated in the eastern Mediterranean, has spread worldwide, becoming a serious threat to tomato ( L.) production. Southeast Asia is considered one of the hotspots for begomovirus diversity, and a wide variety of local begomovirus species distinct from TYLCV have been identified.

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In 2017, a leaf sample from a single chili pepper (Capsicum annuum) plant exhibiting yellowing was collected from Aceh province, Indonesia. Total RNA was extracted from this sample, and RNA-Seq analysis was conducted. Putative infecting viruses were detected by mapping the obtained reads to the full-length viral genome sequences available in the GenBank database (7457 sequences) and the de novo-assembled contigs.

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The aims of this study were to identify sensory processing profiles specific to preschoolers with DCD in a community sample and examine the association of sensory processing problems with motor coordination difficulties in these children. Sixty-three 5-year-old children with DCD and without other neurodevelopmental disorders and 106 age-matched typically developing children participated in this study. Sensory processing problems were assessed using the Sensory Profile.

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To evaluate the localization of responses to stimulation of the periodontal mechanoreceptors in the primary somatosensory cortex, somatosensory evoked fields (SEFs) were measured for stimulation of the left mandibular canine and first molar using magnetoencephalography in 25 healthy subjects. Tactile stimulation used a handmade stimulus device which recorded the trigger at the moment of touching the teeth.SEFs for the canine and first molar were detected in 20 and 19 subjects, respectively.

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Article Synopsis
  • Recent research has focused on developing new methods to deliver biomacromolecules, like peptides and proteins, directly into the cytosol of cells using peptide gemini (PG)-surfactants.
  • The study specifically examines lipopeptides (CP-PGs) with customized peptide sequences, finding that those with certain combinations of cationic peptides display lower cytotoxicity while maintaining a good ability to carry other peptides into cells.
  • Results showed that some CP-PGs outperformed the traditional Arg-rich R8 peptide in delivering a proapoptotic peptide that could trigger cell death, highlighting the potential of PG-surfactants as effective delivery systems.
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Motor paralysis is a severe consequence of intracerebral hemorrhage (ICH) that reduces patient quality of life. Rehabilitation is beneficial for stroke patients. However, functional recovery depends on the exercise type, and which factors are effective during rehabilitation are unknown.

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[Purpose] We investigated the occurrence of delayed-onset muscle soreness and the suppression of muscle rigidity by ultrasound irradiation before high-load exercise. [Participants and Methods] The study was a randomized crossover controlled trial. The participants were 28 healthy university students (12 males, 16 females).

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Recently, nanofibers (NFs) formed from antigenic peptides conjugated to β-sheet-forming peptides have attracted much attention as a new generation of vaccines. However, studies describing how the hydrophilic-hydrophobic balance of NF components affects cellular interactions of NFs are limited. In this report, three different NFs were prepared by self-assembly of β-sheet-forming peptides conjugated with model antigenic peptides (SIINFEKL) from ovalbumin and hydrophilic oligo-ethylene glycol (EG) of differing chain lengths (6-, 12- and 24-mer) to investigate the effect of EG length of antigen-loaded NFs on their cellular uptake, cytotoxicity, and dendritic cell (DC)-stimulation ability.

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During 2017, leaf samples of chili pepper (Capsicum annuum), tomato (Solanum lycopersicum), and tobacco (Nicotiana tabacum) plants exhibiting yellowing and curling symptoms were collected from Aceh province, Indonesia. These samples were used to isolate and sequence viral genomic DNA. Six isolates with complete DNA-A and DNA-B sequences of begomovirus were obtained, all of which showed >99% sequence identity to the others.

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The pentacyclic triterpenoid ursolic acid was previously shown to inhibit the intracellular trafficking of intercellular adhesion molecule-1 (ICAM-1) from the endoplasmic reticulum (ER) to the Golgi apparatus. In the present study, we further investigated the biological activities of three pentacyclic triterpenoids closely related to ursolic acid on the interleukin 1α-induced expression and intracellular trafficking of ICAM-1. In human lung adenocarcinoma A549 cells, asiatic acid, corosolic acid, and maslinic acid interfered with the intracellular transport of ICAM-1 to the cell surface.

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Peptide gemini-surfactant (PG-surfactant), a kind of lipopeptide, is composed of a short linker peptide (X) between two alkyl-chain-modified Cys residues and peripheral peptides at the N-terminal (Y) and the C-terminal (Z) sides, respectively, of the alkylated Cys residues. In this study, we developed and examined a series of PG-surfactants containing two C saturated alkanes and oligo-Lys, arranged at the X-, Y-, or Z-positions. To arrange oligo-Lys at the Y- or Z-positions, a repeat sequence of -Asp-Lys-Asp-Lys- was used at the X-position.

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A putative ketoacyl-ACP reductase (CaKR1) that was not previously known to be associated with pungency of Capsicum was identified from map-based cloning and functional characterization. The pungency of chili pepper fruits is due to the presence of capsaicinoids, which are synthesized through the convergence of the phenylpropanoid and branched-chain fatty acid pathways. The extensive, global use of pungent and non-pungent peppers underlines the importance of understanding the genetic mechanism underlying capsaicinoid biosynthesis for breeding pepper cultivars.

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Somatosensory evoked fields (SEFs) to electrical stimulation on the right and left sides of the lower lip were measured using magnetoencephalography and compared in the bilateral hemispheres of 31 healthy normal young and 29 healthy normal elderly subjects to evaluate age-related change in lip somatosensation. The initial peak of the response around 13 ms, designated as N13m, and the second peak of the response, designated as P21m, were investigated. The N13m response, which was detected in 22 of 62 hemispheres in young adults and 37 of 58 hemispheres in elderly adults, showed significantly prolonged latency and increased equivalent current dipole (ECD) moment in the elderly adults.

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Article Synopsis
  • * Techniques like electron microscopy and infrared spectroscopy showed that the structure of the nanofibers remained unchanged after encapsulation.
  • * The fibermats allow small molecules to reach the encapsulated FNA while protecting it from larger proteins, making them promising for use in sensors and drug applications, especially in living organisms.
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The development of additional extraction surfactants for membrane proteins is necessary for membrane protein research, since optimal combinations for the successful extraction of target membrane proteins from biological membranes that minimize protein denaturation are hard to predict. In particular, those that have a unique basal molecular framework are quite attractive and highly desired in this research field. In this study, we successfully constructed a new extraction surfactant for membrane proteins, NPDGCKK, from the peptide-gemini-surfactant (PG-surfactant) molecular framework.

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