K. Arakawa

Sexual dimorphism in the tardigrade Paramacrobiotus metropolitanus transcriptome

This study identifies sex-biased genes and DMRT paralogs in the tardigrade Paramacrobiotus metropolitanus, revealing insights into sexual dimorphism and stress tolerance mechanisms.

Characteristic differences in tibial subchondral bone changes in the post-traumatic knee osteoarthritis model

This study examines subchondral bone changes in different post-traumatic knee osteoarthritis models and finds that mechanical stress and meniscus dysfunction lead to region-specific bone alterations.

Molecular evidence of chemical disguise by the socially parasitic spiny ant Polyrhachis lamellidens (Hymenoptera: Formicidae) when invading a host colony

This study shows that the spiny ant Polyrhachis lamellidens acquires host cuticular hydrocarbons through rubbing behavior to disguise itself and avoid aggression during colony invasion.

Desiccation-induced fibrous condensation of CAHS protein from an anhydrobiotic tardigrade

This study investigates the self-assembling properties of CAHS1 protein from tardigrades under desiccation conditions, showing it forms hydrogels and condensates that may contribute to desiccation tolerance.

Effect of differences in mechanical stress in vivo on the onset and progression of knee osteoarthritis

This study investigates how different types of mechanical stress affect knee osteoarthritis onset and progression using animal models.

Effect of Suppression of Rotational Joint Instability on Cartilage and Meniscus Degeneration in Mouse Osteoarthritis Model

This study compares the effects of two knee instability models on cartilage and meniscus degeneration in mice, finding that reducing rotational instability suppresses cartilage degeneration.

Micro- and nanostructural characteristics of rat masseter muscle entheses -Characteristics of masseter muscle entheses-

This study examines micro- and nanostructural characteristics of rat masseter muscle entheses, showing alignment of bone apatite crystallites and collagen fibers related to mechanical loading.

Collaborative environmental DNA sampling from petal surfaces of flowering cherry Cerasus ×- yedoensis 'Somei-yoshino' across the Japanese archipelago

The paper collects and analyzes environmental DNA from petal surfaces of cherry trees across Japan, showing rapid DNA attachment and the presence of other plant DNA, supporting the use of petals for studying environmental DNA dynamics.