Hiroyuki Otani

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Estrogen is involved in the development and progression of breast cancer. Here, we investigated the effects of bone morphogenetic proteins (BMPs) on breast cancer cell proliferation caused by estrogen using human breast cancer MCF-7 cells. MCF-7 cells express estrogen receptors (ESR1 and ESR2), BMP receptors, and SMAD signaling molecules. Estradiol and(More)
In the present study, we investigated the cellular mechanism by which oocytes and bone morphogenetic proteins (BMPs) govern FSH-induced steroidogenesis using rat primary granulosa cells. BMP-6 and BMP-7 both inhibited FSH- and forskolin (FSK)-induced progesterone synthesis and reduced cAMP synthesis independent of the presence or absence of oocytes. BMP-7(More)
BACKGROUND AND OBJECTIVE Delirium in terminally ill cancer patients causes considerable distress to family members. The aim was to determine the family-perceived usefulness of a leaflet about delirium in terminally ill cancer patients. METHODS Family members received a leaflet about delirium designed for this study as a part of routine practice.(More)
We here report a new physiological system that governs catecholamine synthesis involving bone morphogenetic proteins (BMPs) and activin in the rat pheochromocytoma cell line, PC12. BMP type I receptors, including activin receptor-like kinase-2 (ALK-2) (also referred to as ActRIA) and ALK-3 (BMPRIA), both type II receptors, ActRII and BMPRII, as well as the(More)
Circulating aldosterone concentrations occasionally increase after initial suppression with angiotensin II (Ang II) converting enzyme inhibitors or Ang II type 1 receptor blockers (ARBs), a phenomenon referred to as aldosterone breakthrough. However, the underlying mechanism causing the aldosterone breakthrough remains unknown. Here we investigated whether(More)
Bone morphogenetic proteins (BMPs) play critical roles in folliculogenesis by modulating the actions of follicle-stimulating hormone (FSH) in the ovary. However, the effects of FSH on the BMP system remain unknown. Here, we have investigated the effects of FSH on BMP signaling using the human granulosa-like tumor cell line KGN. KGN cells express BMP type I(More)
CONTEXT Oral administration of medication is often difficult in terminally ill cancer patients, and a subcutaneous route is traditionally one of the most preferred parenteral routes. Recent studies suggest, however, that some patients and families prefer the intravenous route, and peripherally inserted central venous catheters (PICCs) are actively used in(More)
Recent genetic studies have uncovered a link between familial and idiopathic pulmonary arterial hypertension (PAH) and germline mutations in the bone morphogenetic protein type-II receptor (BMPRII). The pathology of PAH is characterized by remodeling of the pulmonary arteries due to pulmonary artery smooth muscle cell (PASMC) hyperproliferation. Although(More)
OBJECTIVE We aimed to assess leaflet-based intervention effects on family-perceived distress, the need for improvements in professional care for delirium, and family knowledge of delirium causes. METHODS Leaflet-based intervention effects were assessed by comparing responses of family members given in the leaflet with those of a historical control group(More)
Dignity therapy is a novel, brief, and individualized psychotherapeutic intervention developed in Western countries1,2 and appears to be a feasible and effective approach for addressing the existential distress experienced by advanced cancer patients.3 4 We investigated the feasibility of providing dignity therapy for terminally ill cancer patients in(More)