Publications by authors named "Ohmichi M"

Background: Most cases of ovarian hyperstimulation syndrome (OHSS) are caused by infertility treatment using human menopausal gonadotropin (HMG) and human chorionic gonadotropin (hCG). OHSS is widely known to have a "spoke-wheel" appearance on imaging, presenting as bilateral symmetric enlargement of ovaries with multiple cysts of varying sizes. When this spoke-wheel appearance is observed in patients not undergoing infertility treatment, tumor-derived hormones such as follicle-stimulating hormone (FSH) and hCG should be measured.

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  • Subacute cough is a specific type of cough lasting 3-8 weeks and is primarily caused by cough variant asthma, atopic cough, and sinobronchial syndrome, rather than post-infectious cough as previously believed.
  • In a study involving 148 patients, 68.3% developed chronic cough, often stemming from multiple underlying conditions such as cough variant asthma combined with atopic cough.
  • The findings highlight the need for careful diagnosis and treatment of multiple causes in patients with subacute cough to prevent progression to chronic cough.
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Lymphatic ascites is an infrequent complication observed in patients who have undergone lymphadenectomy as part of their surgical treatment for gynecological cancer. Previous research has suggested that intranodal lymphangiography can effectively manage lymphatic leakage. However, its efficacy diminishes for ascites with substantial fluid accumulation.

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  • The study compares the oncological outcomes of sentinel lymph node biopsy (SNB) and pelvic lymphadenectomy (PLD) in patients with early-stage cervical cancer.
  • A total of 104 patients, with tumor sizes mainly ≤2 cm, underwent laparoscopic or robot-assisted radical hysterectomy, showing that only one patient in the SNB group had lymph node metastasis compared to nine in the PLD group.
  • Follow-up results indicated a 100% disease-free survival (DFS) rate for the SNB group and a 91.5% rate for the PLD group, suggesting that SNB is adequate for patients with smaller tumors, potentially making PLD unnecessary.
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: The application of personalized cancer treatment based on genetic information and surgical samples has begun in the field of cancer medicine. However, a biopsy may be painful for patients with advanced diseases that do not qualify for surgical resection. Patient-derived xenografts (PDXs) are cancer models in which patient samples are transplanted into immunodeficient mice.

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We investigated predictors of olaparib discontinuation owing to adverse effects. Patients with ovarian, peritoneal, or fallopian tube cancers treated with olaparib at Osaka Medical and Pharmaceutical University Hospital between April 2018 and September 2022 were included in this study. The exclusion criteria were as follows: discontinuation of treatment due to disease progression, use of anaemia medications, and use of cytochrome P450 (CYP3A4) inhibitors.

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  • Chronic cough is a prevalent symptom in respiratory diseases that significantly impacts patients' lives and social interactions, highlighting the need for comprehensive studies in Japan.
  • The study involved 379 patients with a cough lasting over 8 weeks, ultimately analyzing 334 cases, revealing major causes like cough variant asthma and sinobronchial syndrome.
  • Findings indicate that patients with gastroesophageal reflux-associated cough had a lower treatment success rate and that undiagnosed cases took longer to treat, marking this as Japan's first nationwide investigation into chronic cough causes and treatments.
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Patient-derived xenograft (PDX) models retain the characteristics of tumors and are useful tools for personalized therapy and translational research. In this study, we aimed to establish PDX models for uterine corpus malignancies (UC-PDX) and analyze their similarities. Tissue fragments obtained from 92 patients with uterine corpus malignancies were transplanted subcutaneously into immunodeficient mice.

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Ovarian mature teratomas are benign, but malignant transformation can occur infrequently, especially in women of advanced age. The tissue that undergoes malignant change is mostly squamous cell carcinoma, although adenocarcinoma has been reported in a small number of cases. The immunostaining results of adenocarcinoma usually show a cytokeratin (CK)7-/CK20+ expression profile, corresponding to lower gastrointestinal tract origin.

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Spinal cord injury (SCI) induces devastating permanent deficits. Recently, cell transplantation therapy has become a notable treatment for SCI. Although stem cells from human exfoliated deciduous teeth (SHED) are an attractive therapy, their precise mechanism of action remains to be elucidated.

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In the few articles describing MRI findings of myxoid leiomyosarcoma (MLMS), high signal intensity (SI) on T2-weighted images (T2WI) due to myxoid change was believed to be one of the common features. However, we encountered an MLMS with low SI similar to uterine myometrium on T2WI that subsequently grew with extremely edematous change even after 3 cycles of gonadotropin-releasing hormone agonist (GnRHa) treatment. Here we present this atypical MLMS case with radiologic-pathologic correlation.

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Angiogenesis is one of the growth mechanisms of chronic subdural hematoma (CSDH). Pericytes have been implicated in the capillary sprouting during angiogenesis and are involved in brain ischemia and diabetic retinopathy. This study examined the pericyte expressions in CSDH outer membranes obtained during trepanation surgery.

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Background: Congenital heart disease occurs in approximately 1 in 100 cases. Although sibling occurrence is high (3-9%), the causative genes for this disease are still being elucidated. PLD1 (Phospholipase D1) is a recently discovered gene; however, few case reports have been published on it.

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Gastric cancer is one of the leading causes of death worldwide, and resections are performed to cure the disease. We have previously reported the changes in the gastric microbiota after gastric cancer resection, which may be associated with the oral microbiota; however, the changes in the oral microbiota remain uncharacterized. This study aimed to characterize the changes in the salivary microbiota caused by gastric cancer resection and to evaluate their association with the gastric fluid microbiota.

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Background: At the time of benign gynecological surgery, a prophylactic salpingo-oophorectomy or salpingectomy is increasingly being performed concurrently to reduce the risk of future ovarian and fallopian tube cancer. We herein describe a case of hereditary breast and ovarian cancer syndrome in which a hysterectomy and bilateral adnexectomy were performed with a preoperative diagnosis of benign tumor. A detailed pathological examination revealed occult fallopian tube cancer, and additional staging surgery provided an accurate pathology diagnosis.

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  • This study compares lymphatic complications in patients with endometrial cancer who underwent sentinel node biopsy (SNB) versus pelvic lymphadenectomy (LND) from September 2012 to April 2022.
  • Out of 388 patients, those who had SNB experienced significantly lower rates of lower-extremity lymphedema (LEL) at 2.0% compared to 21.3% in the pelvic LND group.
  • Additionally, no patients in the SNB group developed pelvic lymphocele (PL), while 2.1% of the pelvic LND group did, highlighting SNB's lower risk for lymphatic complications overall.
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Background: A chronic subdural hematoma (CSDH) is considered to be an inflammatory and angiogenic disease. The CSDH outer membrane, which contains inflammatory cells, plays an important role in CSDH development. Osteopontin (OPN) is an extracellular matrix protein that is cleaved by thrombin, generating the N-terminal half of OPN, which is prominently involved in integrin signal transduction.

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Aims: Medroxyprogesterone acetate (MPA) is the most common fertility-sparing treatment in patients with early-stage endometrial cancer. If MPA treatment fails, hysterectomy is recommended. Thus, there is an urgent need for novel treatment approaches for MPA-resistant endometrial cancer patients who wish to preserve their fertility.

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There are few studies about boron neutron capture therapy (BNCT) for cervical cancer. The present study evaluated the biodistribution of boronophenylalanine (BPA) and the effect of BNCT on cervical cancer cell lines. BPA exposure and neutron irradiation of cervical cancer cell lines resulted in decreased survival fraction compared to irradiation only.

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Although imaging studies are not typically performed for clinical diagnosis of cervicitis, in this case magnetic resonance imaging (MRI) was performed because a lesion with a tumor-like gross appearance was found in the uterine cervix. We present a case of cervicitis in which clinical, imaging and pathological features overlapped with those of gastric-type mucinous adenocarcinoma (GAS). The patient, a 30-year-old woman, was referred to a gynecologist with a complaint of watery vaginal discharge.

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Objective: This multicenter study aimed to evaluate the accuracy of the one-step nucleic acid amplification (OSNA) assay in diagnosing lymph node metastasis (LNM) in patients with cervical and endometrial cancers.

Methods: Surgically removed LNs from patients with cervical and endometrial cancer were sectioned at 2-mm intervals along the short axis direction and alternately examined using the OSNA assay and conventional histopathological examination. Ultrastaging (200-μm LN sections) was performed for metastatic LNs using hematoxylin and eosin staining and immunostaining with an anti-CK19 antibody in cases where the OSNA assay and histopathological examination (performed using 2-mm LN sections) results showed discordance.

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Purpose: The aim of this study was to clarify the frequency of thoracic recurrence and identify associated pathological features in postoperative patients with borderline or malignant ovarian epithelial tumors (BMOT) in stage I versus higher stages.

Materials And Methods: A total of 368 consecutive patients with a single primary BMOT were treated at our hospital. This study included the 217 patients with no residual disease on the first CT after standard treatment.

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This study aimed to identify factors predicting the probability of serious fetal acidemia at delivery in placental abruption. We identified 5769 women who delivered at >22 weeks’ gestation at two institutions in a tertiary referral unit specializing in neonatal infant care between January 2007 and December 2011. Ninety-one abruption cases were identified based on clinical and histological diagnoses.

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  • * This study focuses on identifying cancer-specific miRNAs in extracellular vesicles (Te-EVs) collected from patients with OCC, comparing them to normal ovarian tissue.
  • * The research found 37 miRNAs significantly elevated in OCC tissue, with 6 showing decreased levels post-surgery, suggesting these miRNAs could serve as promising biomarkers for early OCC diagnosis.
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Analysis of ovarian cancer tissue and normal ovarian tissue revealed 31 RNA modifications with significant differences observed in cancer tissue compared with normal tissue. Moreover, we found Im and chm5U as characteristic RNA modifications in advanced and platinum-resistant ovarian cancers, respectively. Considering that these differences in RNA modifications may be due to the intra-tumour microenvironment, we xenografted the ovarian cancer cell line RMG-1 to create RMG-1 tumours and compared them with original RMG-1 cells.

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