Publications by authors named "Sayaka Otani"

A paraffin droplet containing camphor and oil red O (dye) floating on the water surface shows spontaneous motion and deformation generated by the surface tension gradient around the droplet. We focused on the intermittent motion with a pronounced deformation into a crescent shape observed at specific concentrations of camphor and oil red O. We quantitatively analyzed the time changes in the droplet deformation and investigated the role of the oil red O by measuring the time-dependent paraffin-water interfacial tension with the pendant drop method.

View Article and Find Full Text PDF

We previously reported that relative to normal cervical mucus, microRNA 126‑3p (miR‑126‑3p) is present in significantly greater amounts in the cervical mucus of patients with overt cervical cancer or precursor lesions. Here, we investigated the effects of enforced miR‑126‑3p expression in the cervical cancer cell line, HeLa, on proliferation, migration, invasion, apoptosis and protein expression. We transfected HeLa cells with miR‑126‑3p miRNA and found that proliferation, migration and invasion by cell counting, wound healing, cell migration and invasion assay were significantly reduced in these cells relative to those transfected with a negative control mimic.

View Article and Find Full Text PDF

Human papillomavirus (HPV) infection can persist in the cervical epithelium without provoking a strong host immune response, leading to the development of cervical cancer. Cytokines, which mediate innate and adaptive immune activities, are secreted in the cervical mucus; however, there is currently no appropriate method for assessing cytokine levels in mucus specimens. Here, we employed multiplexed bead-based immunoassays to examine cytokine levels in cervical mucus using both weighted-volume and total protein concentration methods to adjust for different specimen volumes in individual patients.

View Article and Find Full Text PDF

Objectives: Venous thromboembolism (VTE) is often a problematic complication in patients with gynecological cancer. Despite increasing opportunities to use direct oral anticoagulants (DOACs) to treat VTE, there are no reports on the therapeutic outcomes of DOACs in patients with gynecological cancer; however, there are some studies on cancer patients in general. We retrospectively examined the efficacy and safety of using DOACs to treat VTE in such patients.

View Article and Find Full Text PDF

microRNAs (miRNAs) play important roles in regulation of gene expression during cervical carcinogenesis. We investigated expression profiles of miRNAs in cervical cancer and its precursor lesions by utilizing cervical mucus. Cervical mucus was collected from 230 patients with a normal cervix, cervical intraepithelial neoplasia (CIN), squamous cell carcinoma (SCC), or adenocarcinoma (AD).

View Article and Find Full Text PDF

Monitoring the attribution of human papillomavirus (HPV) genotypes to cervical precancerous lesions is essential in assessing the efficacy of HPV vaccines. To resolve the lack of studies comparing the HPV genotyping procedures used to estimate HPV genotype attribution, we undertook a retrospective cross-sectional study to determine the appropriate genotyping procedures for evaluating the potential efficacy of HPV vaccines. Three procedures, including two different genotyping methods, Clinichip HPV test (C-Chip) and modified GP5+/6+ PCR coupled to fluorescent bead sorter detection (MGP), using exfoliated cervical cells (C-Chip and C-MGP, respectively) or formalin-fixed paraffin-embedded tissues (F-MGP), were compared.

View Article and Find Full Text PDF

We report a case of localized bronchiectasis mimicking a hemangioma demonstrated on enhanced chest computed tomography. Left lower lobectomy following selective bronchial arterial embolization was successful. Pathology evaluation showed markedly dilated bronchial arteries along a dilated bronchus displacing the lateral and posterior basal segments.

View Article and Find Full Text PDF

A 61-year-old woman was referred to our hospital because of an abnormal chest X-ray shadow. She was diagnosed as having primary Sjögren's syndrome based on sicca syndrome, polyclonal hyper-gamma-globulinemia, and positive results for anti-Ro/SS-A and anti-La/SS-B antibodies. Her chest CT scan revealed bilateral ground-glass shadows and septal thickning in the lower lung field (Fig.

View Article and Find Full Text PDF