Publications by authors named "Tabei I"

Background/aim: Elevated blood fibronectin (FN) levels have been observed in various cancers; however, their significance remains controversial. Herein, we measured the levels of sialyl-fibronectin (S-FN), a type of FN secreted by tumor cells, and investigated whether blood S-FN secretion is associated with recurrent metastasis and epithelial-mesenchymal transition (EMT).

Patients And Methods: An ELISA system recognizing S-FN was constructed, and the amount of S-FN in blood samples from 63 patients with thyroid carcinoma was measured.

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Article Synopsis
  • The study aims to determine the effectiveness of perioperative immunonutrition in adult patients undergoing surgery for head and neck or gastrointestinal cancers, focusing on those with or without malnutrition.
  • A review of randomized controlled trials showed that immunonutrition, involving specific nutrients like arginine and omega fatty acids, significantly decreased both total and infectious postoperative complications compared to standard nutritional care.
  • The findings suggest that integrating immunonutrition in the perioperative phase can lead to better clinical outcomes for patients undergoing elective surgery for these types of cancers.
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When performing thyroid/parathyroid surgery, difficulty detecting the parathyroid gland is a common experience because it is frequently mistaken with surrounding structures, including the thyroid gland, lymph nodes, and fat. To obtain successful surgical results, the auto fluorescent property of the parathyroid gland occurring at 820-830 nm has been used. Intraoperative visualization and detection by fluorescence enable protection of the gland from damage and unintended removal.

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Background: Peritoneal dissemination associated with the postoperative recurrence of breast cancer is relatively low (3-6%). Although the prognosis of patients with peritoneal metastasis is generally short (7-26 months), we experienced a unique case in which complete remission was achieved for more than 6 years with endocrine therapy alone.

Case Presentation: An 81-year-old woman presented an upper abdominal tumor and loss of appetite.

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The question of how to manage patients with low-risk papillary thyroid microcarcinoma (PTMC; T1aN0M0) has recently become an important clinical issue. Two Japanese centers have conducted prospective clinical trials of active surveillance (AS) for low-risk PTMC since the 1990s, reporting favorable outcomes. This policy has thus seen gradual adoption worldwide to avoid overtreatment.

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  • Adipose-derived stem cells (ASCs) and dedifferentiated fat (DFAT) cells are promising sources for tissue engineering, as they can be easily obtained and can differentiate into multiple cell types, but their function may decline with age.
  • This study focused on comparing DFAT and ASCs from aging donors, noting that while both maintained healthy stem cell traits, DFAT cells showed higher proliferation rates and less cellular aging than ASCs.
  • DNA methylation analysis revealed that aging impacted specific adipogenic genes, showing hypermethylation in three genes (PPARγ2, FABP4, LPL) and hypomethylation in one (C/EBPα), indicating a complex relationship between age and
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Background: Breast metastasis from extra-mammary primary tumors is extremely rare. We recently experienced a rare case of a male breast metastasis of ureteral cancer and will provide a case report.

Case Presentation: A 74-year-old man developed a ureteral cancer and underwent left nephroureterectomy with lymph node dissection.

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There are currently no established second- and later-line therapies for postmenopausal women with hormone receptor-positive advanced or metastatic breast cancer. We examined the efficacy of high-dose toremifene (HD-TOR) for this patient group and whether aromatase inhibitor (AI) resistance influences HD-TOR treatment outcome. This retrospective analysis investigated the outcomes of 19 women with postmenopausal hormone-sensitive recurrent or metastatic breast cancer who received HD-TOR, defined as 120 mg daily from 2012 to 2016.

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Background/aims: The current study was undertaken to assess if the semi-solid formulas could be used with a new ENFit connector with similar force to current percutaneous endoscopic gastrostomy (PEG) tubes.

Methods: Experiment 1: We measured the applied pressure (force) needed to compress the syringe containing 7 viscous semi-solid formulas with a 20 Fr PEG tube and low-profile tube through the ENFit connector or the current connector. Experiment 2: This experiment was conducted to evaluate the compression force through 2 connectors in 3 infusion velocity, 7 PEG tube types with 2 semi-solid formulas.

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  • Initial complications of enteral nutrition (EN) include vomiting, aspiration pneumonia, and diarrhea, prompting the exploration of a viscosity-regulating pectin solution to mitigate these issues.
  • A study involving 34 patients from 7 medical institutions compared the effects of this novel pectin solution (VREF group) with conventional EN methods (control group) over two weeks, monitoring various clinical symptoms and stool characteristics.
  • Results showed a favorable trend in clinical symptoms and a reduction in infusion duration for the VREF group, indicating that this new method can be safely and effectively integrated into EN management, similar to traditional approaches.
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Background: Subareolar breast abscess (SBA) is a rare infectious disease of the breast in male patients.

Case Presentation: Herein, we report two male patients with SBA. Patient 1 was initially diagnosed with a malignant tumor based on imaging findings; ultrasonography revealed a hypoechoic mass with blood flow.

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In Department of Surgery, Daisan Hospital, The Jikei University School of Medicine, Clinical Clark ship (C.C.) is positively taken in the bedside teaching of the medical course fifth and sixth grader from April, 2010.

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We report a rare case of breast hemangioma found in a 70-year-old Japanese female. Before seeking medical attention, the patient noticed a hard mass in her right breast but denied associated symptoms. A mammography revealed a well-circumscribed, highly dense, lobular nodule located in the middle inter portion of the right breast.

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Background: Papillary thyroid carcinoma often has lymph node metastasis, compared with follicular thyroid carcinoma. The study showed that epithelial-mesenchymal transition occurs in carcinoma cells during the first stage of metastasis, where some extracellular matrix molecules are secreted in large quantities. Sialic acid carried by fibronectin as the antigen of the monoclonal antibody (MoAb) JT-95, was detected in 90% of papillary thyroid carcinoma cases, and in a few follicular thyroid carcinomas, in the extracellular matrix of thyroid carcinoma cells.

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A recent foreign clinical trial showed albumin-bound paclitaxel(260mg/m2 tri-weekly)to have a better response for metastatic breast cancer(MBC)than did treatment with paclitaxel alone(175mg/m2 tri-weekly). It was sometimes difficult to control the occurrence of side effects, such as neutropenia and neuropathy, especially after many treatments. The effect of low-dose albumin-bound paclitaxel(180-220mg/m2 tri-weekly)was evaluated in 8 patients with MBC.

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We recently showed dihydropyridine- and voltage-sensitive Ca(2+) entry in cultured parathyroid cells from patients with secondary hyperparathyroidism. To determine whether normal parathyroid cells have a similar extracellular Ca(2+) entry system, cells were isolated from normal (non-hyperplastic) human parathyroid glands. Fluorescence signals related to the cytoplasmic Ca(2+) concentration ([Ca(2+)]I) were examined in these cells.

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Some variations in pulmonary vein anatomy can have serious consequences in patients undergoing lung surgery, but clinicians rarely encounter patients with these variations. We report here a thoracoscopic lobectomy for right lung cancer in a patient with three right vein ostia. Preoperative review of three-dimensional 64-row multidetector computed tomography (3D-MDCT) of the patient showed a variation that was not confirmed in transverse plane computed tomography films.

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A 58-year-old Japanese male patient visited our hospital for evaluation of an elastic hard mass, measuring 80 x 50 mm, in the right axillary area. Incisional biopsy for suspected malignancy was performed, and histopathologic examination by hematoxylin-eosin (H&E) staining yielded a diagnosis of poorly differentiated adenocarcinoma metastatic from an unknown primary. As the tumor was immunohistochemically positive for both ER and PgR, metastatic breast cancer was strongly suspected.

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Background: It is difficult to differentiate histologically between benign and malignant follicular-type tumours of the thyroid gland. The present study evaluated whether sentinel lymph node (SLN) biopsy was helpful in obtaining the correct diagnosis of malignant follicular-type tumours, as metastasis to the lymph nodes is sufficient evidence for a diagnosis of cancer.

Methods: SLN biopsy was performed for 37 follicular-type tumours suspected to be malignant on the basis of preoperative examinations, but for which the diagnosis had not been confirmed.

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Patch-clamp and fluorescence measurements of cytoplasmic Ca(2+) concentration ([Ca(2+)](i)) were performed to directly detect extracellular Ca(2+) entry into cultured parathyroid cells from patients with secondary hyperparathyroidism. Cells loaded with fluo-3 AM or fluo-4 AM showed a transient increase in fluorescence (Ca(2+) transient) following 10 s exposure to 150 mm K(+) solution in the presence of millimolar concentrations of external Ca(2+). The Ca(2+) transient was completely inactivated after 30-40 s exposure to the high-K(+) solution, was reduced by dihydropyridine antagonists and was enhanced by FPL-64176, an L-type Ca(2+) channel agonist.

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We retrospectively analyzed the expression of epidermal growth factor receptor (EGFR) as a prognostic marker to predict neoadjuvant chemotherapy response and survival among breast cancer subtypes. We used immunohistochemical profiles to subtype the patients. EGFR expression was determined using immunohistochemistry.

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We have established a cell line derived from a pleural effusion of breast scirrhous carcinoma. This cell line presented immunohistochemically negative for estrogen receptor and slightly positive for progesterone receptor, and positive for c-erbB/HER2/neu. However the original tumor was found to be positive for estrogen receptor and progesterone receptor and slightly positive for c-erbB/HER2/neu expression.

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Article Synopsis
  • Recent advancements in mammary ductoscopy (MD) have allowed for direct observation of the mammary duct in vivo, particularly following successful studies in Japan and East Asia.
  • A review of 143 articles over the past 19 years revealed significant growth in MD research and technological developments, improving endoscopic imaging and diagnosis for nipple discharge-related issues.
  • While MD has proven beneficial for diagnosing intraductal lesions and reducing the need for more invasive surgeries, further research and innovation are required for its widespread practical application.
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Background: Inflammatory breast cancer (IBC) is the most aggressive form of primary breast cancer. We examined the relationship between clinicopathological factors and clinical response to primary systemic chemotherapy (PSC) and outcome.

Methods: Twenty-five patients with IBC were examined.

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Purpose: (99m)Tc-Methoxyisobutylisonitrile ((99m)Tc-MIBI)-guided surgery for the detection of abnormal parathyroid glands in primary hyperparathyroidism (1-HPT) has gained popularity as an effective technique. However, in secondary hyperparathyroidism (2-HPT), the efficacy of this method remains controversial, especially for the recurrence sites of 2-HPT.

Methods: (99m)Tc-MIBI-guided surgery was performed for 28 recurrent sites of transplanted parathyroid tissue in 4 patients, and the detection rates of this method were compared with the results of preoperative ultrasound (US) examination and computed tomography (CT) scanning.

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