Publications by authors named "Y Koshiishi"
The emu (Dromaius novaehollandiae) is a novel poultry species that produces meat, eggs, and fat. Although emus have recently been domesticated, genetic improvements to establish strains have scarcely progressed. In this study, we investigated the relationship between production traits and perilipin 1-encoding gene (PLIN1) polymorphisms in the emus.
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- Lifebuoy cataract is an uncommon congenital condition that leads to lens thinning, and this study aims to address the limited knowledge and treatment options available through detailed case reports and surgical techniques.
- A 14-year-old boy with a history of untreated congenital cataract experienced worsening vision, leading to a diagnosis confirmed by various examinations, including slit-lamp microscopy and optical coherence tomography.
- The surgical intervention involved a careful cataract surgery, highlighting techniques to handle complications like central calcification and residual opacification, although posterior capsulotomy was avoided due to risk of vitreous prolapse.
Two modern high-quality Japanese malting barley cultivars, 'Sukai Golden' and 'Sachiho Golden', were subjected to RNA-sequencing of transcripts extracted from 20-day-old immature seeds. Despite their close relation, 2,419 Sukai Golden-specific and 3,058 Sachiho Golden-specific SNPs were detected in comparison to the genome sequences of two reference cultivars: 'Morex' and 'Haruna Nijo'. Two single nucleotide polymorphism (SNP) clusters respectively showing the incorporation of (1) the barley yellow mosaic virus (BaYMV) resistance gene from six-row non-malting Chinese landrace Mokusekko 3 on the long arm of 3H, and (2) the anthocyanin-less gene from a two-row Dutch cultivar on the long arm of 2H were detected specifically in 'Sukai Golden'.
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- The emu is a new poultry species in Japan but suffers from reduced genetic diversity due to inbreeding in commercial farms.
- Researchers have found potential genetic resources at Tohoku Safari Park and Fuji/Kakegawa Kachoen Garden Park to enhance this diversity, using advanced genotyping techniques.
- Analysis revealed that TSP emus are ancestral to Okhotsk Emu Farm, while FGP/KGP emus have a unique genetic profile linked to an isolated wild population in eastern Australia, suggesting valuable contributions to both the Japanese emu industry and conservation efforts.
Purpose: The effect of scan range and the number of scanned images on the precision of in vivo intermaxillary relationship reproduction was evaluated using digital scans acquired with an intraoral scanner.
Methods: The study involved 15 participants with normal occlusion. Two different interocclusal recording settings were employed using the intraoral scanner (TRIOS 4): 'MIN,' focusing on the minimal scan range of the first molar region, and 'MAX,' including the scan range from the right first premolar to the right second molar.