Publications by authors named "Risa Sakai"

A sensor-augmented pump (SAP) therapy is used to treat neonatal diabetes mellitus (NDM). We treated a case for which SAP therapy was successful and prevented hypoglycemia. The patient was a baby boy who was small for his gestational age.

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Unlabelled: Sakai R, Koike Y, Saito K, Matsunaga T, Shimada Y, Miyakoshi N. Aphasia testing (auditory comprehension domain) using a new eye-tracking system in healthy participants. Jpn J Compr Rehabil Sci 2022; 13: 31-35.

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Purpose: We aimed to 1) identify predictors of delayed and nonunion of tibial shaft fractures in patients treated with intramedullary nailing (IMN), including patient demographics and surgical factors, and 2) determine whether the nail/shaft ratio is associated with delayed and nonunion.

Methods: This retrospective, multicenter study included 315 patients with tibial shaft fracture treated with IMN between 2014 and 2019 and excluded patients with insufficient follow-up for 12 months, lost data and inadequate radiographs. Finally, we analyzed 258 patients (184 males; 74 females).

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Objectives: The purpose of this multicenter study was to assess the differences in the rates of implant failure and bone union by X-ray examination, and walking ability between an early weight-bearing group (EWB) and a non-weight-bearing group (NWB) following treatment with intramedullary nailing (IMN) for tibial shaft fractures with a propensity score-matching method.

Material And Methods: We collected data from 336 patients with tibia fractures that were treated surgically. We excluded patients lost to follow-up and polytrauma patients.

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Parkinson's disease (PD) is a neurodegenerative disease of the brain characterized by the progressive loss of dopaminergic neurons in the substantia nigra (SN). No clinically proven drugs that may halt or retard the progression of PD have been reported. This study examined the anti-PD effect of a traditional Japanese/Chinese herbal remedy Toki-to (TKT) using mice treated with a neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydroxypyridine (MPTP).

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Disruption of myelin causes severe neurological diseases. An understanding of the mechanisms that control myelination and remyelination is needed to develop therapeutic strategies for demyelinating diseases such as multiple sclerosis (MS). Our previous finding indicating the critical involvement of the gamma chain of immunogloblin Fc receptors (FcRgamma) and Fyn signaling in oligodendrocyte differentiaion and myelination demands a fundamental revision of the strategies used for MS therapy, because antigen-antibody complexes in MS patients may induce the direct dysregulation of myelination process as well as the inflammatory destruction of myelin sheath.

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