Publications by authors named "R Maekawa"

Electrochemical exfoliation of graphite has attracted much attention as a practical mass production of two-dimensional graphene-like materials. There is an increasing desire to find new and improved methods to create unique exfoliated products with excellent functionality. We used aqueous ammonium hydrogen carbonate solution as a new electrolyte for anodic oxidative exfoliation of graphite.

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Congenital protein C (PC) deficiency is a mostly autosomal dominant hereditary thrombophilia associated with early onset arterial and venous thrombotic diseases. In newborns, PC deficiency results in severe complications such as cerebral hemorrhage, cerebral infarction, and purpura fulminans, leading to death in some cases. We report two cases of deep vein thrombosis diagnosed during pregnancy that prompted genetic testing confirming definitive congenital PC deficiency.

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Article Synopsis
  • The article aims to provide evidence-based recommendations for diagnosing abnormal uterine bleeding.
  • A systematic literature search in PubMed was conducted to gather relevant data, leading to the formulation of background, clinical, and future research questions by an expert panel.
  • The study resulted in the creation of a diagnostic flowchart and nine tailored recommendations for effectively identifying the underlying causes of abnormal uterine bleeding, specifically adapted for the Japanese context.
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Decidualization of the human endometrium is critical for establishing pregnancy and is entailed by differentiation of endometrial stromal cells (ESCs) into decidual cells. During decidualization, the actin cytoskeleton is dynamically reorganized for the ESCs' morphological and functional changes. Although actin dynamically alters its polymerized state upon external stimuli not only in the cytoplasm, but also in the nucleus, nuclear actin dynamics during decidualization have not been elucidated.

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Nicotinamide riboside (NR), a NAD precursor, has received attention due to several health benefits it has induced in experimental models. Studies in cultured cells, animals, and humans consistently show increased NAD availability after NR supplementation, which is considered the only mode of NR action that leads to health benefits. In the present study, we show that a persistently low NR concentration (1 μM) in the growth medium of BEAS-2B human cells, grown in a monolayer, induces energy stress, which precedes a cellular NAD increase after 192 h.

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