文献一覧: Takashi URUNO (著者)

14 0 0 0 OA BRAF Mutation in Papillary Thyroid Carcinoma in a Japanese Population: Its Lack of Correlation with High-Risk Clinicopathological Features and Disease-Free Survival of Patients

著者: Yasuhiro ITO Hiroshi YOSHIDA Rie MARUO Shinji MORITA Toru TAKANO Mitsuyoshi HIROKAWA Tomonori YABUTA Mitsuhiro FUKUSHIMA Hiroyuki INOUE Chisato TOMODA Minoru KIHARA Takashi URUNO Takuya HIGASHIYAMA Yuuki TAKAMURA Akihiro MIYA Kaoru KOBAYASHI Fumio MATSUZUKA Akira MIYAUCHI
出版者: (社)日本内分泌学会
雑誌: Endocrine Journal (ISSN:09188959)
巻号頁・発行日: vol.56, no.1, pp.89-97, 2009 (Released:2009-03-12)
参考文献数: 49
被引用文献数: 92 176

Recent studies have demonstrated that BRAFV600E mutation is a common event in papillary thyroid carcinoma and a majority of these lesions have shown a direct relationship between BRAFV600E mutation and aggressive characteristics, including a worse patient prognosis. However, there are no studies from Japan regarding this issue in a large series with adequate postoperative follow-up periods. We investigated BRAFV600E mutation in 631 patients with papillary carcinoma having median follow-up periods of 83 months. The prevalence of BRAFV600E mutation was 38.4%, and the rate was higher in carcinoma larger than 1.0 cm but did not successively increase with tumor size. Furthermore, the prevalence did not significantly increase in cases demonstrating high-risk biological features such as clinically apparent lymph node metastasis, massive extrathyroid extension, advanced age, distant metastasis at surgery, and advanced Stage. The disease-free survival of patients with BRAFV600E mutation did not differ from that of those without BRAFV600E mutation. These findings indicate that, although BRAFV600E mutation may play some roles in local carcinoma development, there is no evidence that BRAFV600E mutation significantly reflects the aggressive characteristics and poor prognosis of patients with papillary carcinoma in Japan.

2019-01-15 20:54:57
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5 0 0 0 OA Prognosis of Patients with Papillary Thyroid Carcinoma Having Clinically Apparent Metastasis to the Lateral Compartment

著者: Yasuhiro ITO Mitsuhiro FUKUSHIMA Chisato TOMODA Hiroyuki INOUE Minoru KIHARA Takuya HIGASHIYAMA Takashi URUNO Yuuki TAKAMURA Akihiro MIYA Kaoru KOBAYASHI Fumio MATSUZUKA Akira MIYAUCHI
出版者: The Japan Endocrine Society
雑誌: Endocrine Journal (ISSN:09188959)
巻号頁・発行日: pp.0905250282, (Released:2009-06-09)
被引用文献数: 107 108

Lymph node metastasis is an important clinicopathological feature of papillary thyroid carcinoma (PTC). PTC having clinically apparent lateral node metastasis detectable on preoperative imaging studies (N1b) is known to show a dire prognosis. However, N1b cases include various levels of biological aggressiveness, depending on the size, number, laterality and invasiveness of metastatic nodes. We investigated differences in the prognoses of 621 N1b patients based on these features and compared their prognoses with those of 4297 patients without clinically apparent metastasis (N0) and 125 patients with clinically apparent central node metastasis only (N1a). Disease-free survival (DFS) and cause-specific survival (CSS) of N1b or N1a patients were significantly worse than those of N0 patients, but the prognosis of N1b patients did not differ from that of N1a patients. In the subset of N1b patients, metastatic nodes larger than 3cm, extranodal extension, or 5 or more clinically apparent metastatic nodes independently affected DFS and a combination of the former two features also showed an effect on CSS on multivariate analysis. Prognosis of N1b patients who had none of these features did not differ from that of N1a patients. It is therefore suggested that N1b patients having metastasis larger than 3cm, those showing extranodal extension, and those having 5 or more clinically apparent metastasis should regarded as high-risk, and that careful surgical treatment and postoperative follow-up are necessary.

2022-11-16 15:26:53
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2 0 0 0 OA Outcome and characteristics of patients with malignant pleural effusion from differentiated thyroid carcinoma

著者: Chisato Tomoda Yuna Ogimi Fumi Saito Chie Masaki Junko Akaishi Kenichi Matsuzu Akifumi Suzuki Takashi Uruno Keiko Ohkuwa Hiroshi Shibuya Wataru Kitagawa Mitsuji Nagahama Kiminori Sugino Koichi Ito
出版者: (社)日本内分泌学会
雑誌: Endocrine Journal (ISSN:09188959)
巻号頁・発行日: pp.EJ15-0631, (Released:2015-12-10)
被引用文献数: 1 6

Metastatic differentiated thyroid carcinoma (DTC) is an uncommon cause of malignant pleural effusion (MPE) and the characteristics and clinical course have been rarely described. Herein, we report a retrospective review of the clinical course of 18 patients (15 women and 3 men) with MPE from DTC who underwent treatment at our institution between January 2005 and December 2014. MPE from DTC was diagnosed based on cytology and/or level of thyroglobulin in the pleural fluid. Pathologically, papillary carcinoma was found in 16 patients and follicular carcinoma in 2 patients. Median ages at initial diagnosis of DTC and MPE were 64 years (range, 22-79) and 74 years (range, 39-86), respectively. All patients showed radiologically apparent lung metastases, with MPE developing after 0-212 months (median, 25). In 16 patients (88.9%), other coexistent distant metastases at the time of MPE diagnosis were found in the bone (n = 10), brain (n = 5), and skin (n = 2). All patients were treated conservatively with palliative thoracentesis or chest tube drainage with or without pleurodesis. Recurrent MPE after treatment was seen in 9 patients; discharge to home health care after treatment for MPE was possible for 14 patients. The overall survival after initial diagnosis varied considerably from 14 months to 37 years, but the median survival after appearance of MPE was 10 months (range, 1-28). Systemic therapy for iodine-resistant recurrent thyroid disease may need to be considered as a treatment option for patients with MPE.

2015-12-24 12:30:05
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1 0 0 0 OA Prognosis of Patients with Papillary Carcinoma Showing Anaplastic Transformation in Regional Lymph Nodes that Were Curatively Resected

著者: Yasuhiro ITO Takuya HIGASHIYAMA Mitsuyoshi HIROKAWA Mitsuhiro FUKUSHIMA Hiroyuki INOUE Tomonori YABUTA Chisato TOMODA Takashi URUNO Minoru KIHARA Yuuki TAKAMURA Akihiro MIYA Kaoru KOBAYASHI Fumio MATSUZUKA Akira MIYAUCHI
出版者: The Japan Endocrine Society
雑誌: Endocrine Journal (ISSN:09188959)
巻号頁・発行日: vol.55, no.6, pp.985-989, 2008 (Released:2008-12-27)
参考文献数: 17
被引用文献数: 4 20

Anaplastic carcinoma arises from differentiated carcinoma and generally shows a dire prognosis. Anaplastic transformation may occur not only in primary tumors but also in metastatic lymph nodes. We encountered 5 cases of papillary carcinoma showing anaplastic transformation in lymph nodes that were curatively resected. Patient ages ranged from 67 to 85 years. Two of these patients showed anaplastic transformation at the initial surgery and the remaining 3 showed anaplastic transformation after repeated recurrence to the lymph nodes. After resection of anaplastic lesions of the nodes, 2 patients underwent radiation therapy, whereas the remaining 3 did not receive any adjuvant therapy. One patient died of rapid growth of lung metastasis 5 months after the resection. One patient died of carcinoma 63 months after surgery. Two patients have survived to date, 6 and 85 months after resection, respectively. The remaining one patient died of heart failure 11 months after surgery. It is therefore suggested that long-term survival can be expected for patients with differentiated carcinoma showing anaplastic transformation in the lymph node if the lesions can be curatively resected.

2018-03-05 11:05:03
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1 0 0 0 OA Changes in Serum TSH Receptor Antibody (TRAb) Values in Patients with Graves' Disease after Total or Subtotal Thyroidectomy

著者: Yuuki TAKAMURA Keiichi NAKANO Takashi URUNO Yasuhiro ITO Akihiro MIYA Kaoru KOBAYASHI Tamotsu YOKOZAWA Fumio MATSUZUKA Kanji KUMA Akira MIYAUCHI
出版者: (社)日本内分泌学会
雑誌: Endocrine Journal (ISSN:09188959)
巻号頁・発行日: vol.50, no.5, pp.595-601, 2003 (Released:2003-11-12)
参考文献数: 39
被引用文献数: 15 30

TSH receptor antibodies (TRAb) are generally regarded as mediators of thyroid stimulation in Graves' disease. In addition, a high serum TRAb value during pregnancy is one of the risk factors for intrauterine death, prematurity, and fetal or neonatal hyperthyroidism. Recently, correlations between a high serum TRAb value and endocrine opthalmopathy were also suggested. Surgical resection of the thyroid is usually followed by a reduction of serum TRAb levels in variable degrees. The relation between the extent of the thyroidectomy and the degree of reduction is still controversial. In addition, the changes in the TRAb value after total thyroidectomy (TT) over a long period of time have never been studied. We studied the changes in serum TRAb values after TT and subtotal thyroidectomy (ST) for more than 7 years. Forty-one patients with Graves' disease underwent TT, and 99 patients underwent ST. The serum TRAb values and the ratio of the patients who achieved normal values among each group (normalization rates of TRAb) at 3 and 6 months, 1, 3, 5 and 7 years after surgery were compared between the TT group and ST group. The mean preoperative TRAb values were not significantly different between the TT and ST groups, and the mean TRAb values measured 3, 6 and 12 months after surgery were not significantly different between the groups. However, the TRAb values measured 3, 5 and 7 years after surgery were significantly (p

2017-10-21 22:02:00
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1 0 0 0 OA Inhibitory effect of low-dose inorganic iodine on thyroidal radioactive iodine uptake in healthy Japanese adults

著者: Yo Kunii Takashi Uruno Koji Mukasa Kenichi Sekiya Kenji Iwaku Akifumi Suzuki Kiminori Sugino Jaeduk Yoshimura Noh Koichi Ito
出版者: (社)日本内分泌学会
雑誌: Endocrine Journal (ISSN:09188959)
巻号頁・発行日: vol.63, no.1, pp.21-27, 2016 (Released:2016-01-31)
参考文献数: 20
被引用文献数: 1 5

In the event of a nuclear power plant accident, prophylactic administration of potassium iodide (KI) is recommended to prevent thyroid damage due to uptake of radioiodine. To assess the inhibitory effect of low-dose inorganic iodine on thyroidal radioactive iodine uptake (RAIU) in healthy adults without dietary iodine restriction, single or repeated doses of 10 mg inorganic iodine solution were given to 22 Japanese volunteers, 18 men and 4 women with the mean age of 35.7 years, between 2011 and 2013. Changes in urinary iodine excretion, thyroid function and 24-hour RAIU were also evaluated. The median 24-hour RAIU without iodine restriction was 13 % (range, 5-26 %). A single-dose of 10 mg inorganic iodine suppressed the median 24-hour RAIU measured one hour after iodine administration to 3 % (range, 1-7 %) and, in 90.9% of 22 participants their 24-hour RAIU was < 5 %. For seven participants given 10 mg of inorganic iodine daily for 14 days, the median 24-hour RAIU measured at 24 hours after the last administration of iodine was 6 % (range, 2-12 %), although the inhibitory effect was diminished in two participants. Serum thyroid stimulating hormone concentration was slightly elevated in three participants without decreased serum FT3 and FT4 levels. We conclude that a single-dose of 10 mg inorganic iodine is sufficient to inhibit RAIU in adults, although the inhibitory effect of repeated-dose on RAIU is diminished when KI is given once daily. The dose, duration or interval of iodine administration should be evaluated in iodine-sufficient regions in a future.

2016-02-06 23:14:09
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1 0 0 0 OA Prognosis of Patients with Papillary Thyroid Carcinoma Having Clinically Apparent Metastasis to the Lateral Compartment

著者: Yasuhiro ITO Mitsuhiro FUKUSHIMA Chisato TOMODA Hiroyuki INOUE Minoru KIHARA Takuya HIGASHIYAMA Takashi URUNO Yuuki TAKAMURA Akihiro MIYA Kaoru KOBAYASHI Fumio MATSUZUKA Akira MIYAUCHI
出版者: (社)日本内分泌学会
雑誌: Endocrine Journal (ISSN:09188959)
巻号頁・発行日: vol.56, no.6, pp.759-766, 2009 (Released:2009-09-25)
参考文献数: 15
被引用文献数: 55 108

2013-06-13 09:14:10
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