1.Primary Squamous Cell Carcinoma of the Female Urethra: A Case Report
Takahiro HIRAYAMA ; Tetsuo FUJITA ; Yoshiko TOKUYAMA ; Akio KAZAMA ; Noboru FUKUHARA ; Seigo TAKANO
Journal of the Japanese Association of Rural Medicine 2009;58(2):85-89
We report a case of female urethral cancer. A 67-year-old female complained of a pain in the left buttocks. Magnetic resonance imaging (MRI) revealed a urethral tumor, which invaded the bladder wall and left buttocks tissue. Transurethral resection was performed. Histopathological examinations revealed squamous cell carcinoma of the urethra. The case was diagnosed as stage D4 urethral cancer according to the Grabstald's classification. Radiotherapies with a total dose of 57.5 Gy were performed on the primary and invaded sites. However, she died 6 months after the radiotherapy.
Female
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seconds
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Carcinoma, Squamous Cell
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Procedures on Urethra
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Primary
2.A Case of Vesicorectal Fistula due to Progressive RectalCarcinoma Successfully Treated by Total Pelvic Exenteration
Yoshiko TOKUYAMA ; Tetsuo FUJITA ; Takahiro HIRAYAMA ; Tsunehisa MATSUSHITA ; Akio KAZAMA ; Seigo TAKANO
Journal of the Japanese Association of Rural Medicine 2010;58(6):694-698
A 55-year-old male complained about urinary frequency, micturition pain, and right abdominal pain. Ultrasonography, computed tomography, and magnetic resonance imaging revealed severe vesicorectal fistula which was induced by either bladder carcinoma or rectal carcinoma. Total pelvic exenteration was performed. Histopathological examination revealed rectal adenocarcinoma with invasion of the urinary bladder. Twelve months after the surgery, the patient exhibited no sign nor symptom of local recurrence or metastatic disease.
3.Risk factor for occlusion of central venous access port system in colon cancer patients
Hisakazu Nishimori ; Noriko Kouge ; Hitomi Nishimoto ; Yuko Tsuyumu ; Yukie Matsushima ; Megumi Kuyama ; Megumi Fukutake ; Yoshiko Inoue ; Momoe Fujita ; Taizo Hirata ; Katsuyuki Hotta ; Masahiro Tabata
Palliative Care Research 2013;8(1):135-141
Purpose: It is critical to reduce complications associated with the central venous access port (CV-port) system for patients who were treated with chemotherapy or palliative care. Methods: From October 2006 to December 2011, 68 colon cancer patients who were treated with outpatient chemotherapy via a CV-port in the Center for Clinical Oncology, Okayama University Hospital, were analyzed retrospectively. Results: CV-port related complications occurred in 20 (29.4%) patients. No blood could be aspirated in 15 patients when treated via a CV-port. Among the patients with no blood aspiration from their CV-port, ten cases had no complications other than failure of blood aspiration, and anticancer agents have been successfully administered. However, the other five patients had their CV-port system replaced due to complications. Subclavian and left side insertions were the risk factors for catheter occlusion or inability to aspirate blood. Conclusion: Medical staffs should be aware that approximately one-third of the cases with no blood aspiration potentially have troubles with their CV-ports that need to be replaced.
4.¹²³I-Labeled oxLDL Is Widely Distributed Throughout the Whole Body in Mice
Atushi NAKANO ; Hidekazu KAWASHIMA ; Yoshinori MIYAKE ; Tsutomu ZENIYA ; Akihide YAMAMOTO ; Kazuhiro KOSHINO ; Takashi TEMMA ; Tetsuya FUKUDA ; Yoshiko FUJITA ; Akemi KAKINO ; Shigehiko KANAYA ; Tatsuya SAWAMURA ; Hidehiro IIDA
Nuclear Medicine and Molecular Imaging 2018;52(2):144-153
PURPOSE:
Oxidized low-density lipoprotein (oxLDL) plays a key role in endothelial dysfunction, vascular inflammation, and atherogenesis. The aim of this study was to assess blood clearance and in vivo kinetics of radiolabeled oxLDL in mice.
METHODS:
We synthesized ¹²³I-oxLDL by the iodine monochloride method, and performed an uptake study in CHO cells transfected with lectin-like oxLDL receptor-1 (LOX-1). In addition, we evaluated the consistency between the ¹²³I-oxLDL autoradiogram and the fluorescence image of DiI-oxLDL after intravenous injection for both spleen and liver. Whole-body dynamic planar images were acquired 10 min post injection of ¹²³I-oxLDL to generate regional time-activity curves (TACs) of the liver, heart, lungs, kidney, head, and abdomen. Regional radioactivity for those excised tissues as well as the bladder, stomach, gut, and thyroid were assessed using a gamma counter, yielding percent injected dose (%ID) and dose uptake ratio (DUR). The presence of ¹²³I-oxLDL in serum was assessed by radio-HPLC.
RESULTS:
The cellular uptakes of ¹²³I-oxLDL were identical to those of DiI-oxLDL, and autoradiograms and fluorescence images also exhibited consistent distributions. TACs after injection of ¹²³I-oxLDL demonstrated extremely fast kinetics. The radioactivity uptake at 10 min postinjection was highest in the liver (40.8 ± 2.4% ID). Notably, radioactivity uptake was equivalent throughout the rest of the body (39.4 ± 2.7% ID). HPLC analysis revealed no remaining ¹²³I-oxLDL or its metabolites in the blood.
CONCLUSION
¹²³I-OxLDL was widely distributed not only in the liver, but also throughout the whole body, providing insight into the pathophysiological effects of oxLDL.
5.¹²³I-Labeled oxLDL Is Widely Distributed Throughout the Whole Body in Mice
Atushi NAKANO ; Hidekazu KAWASHIMA ; Yoshinori MIYAKE ; Tsutomu ZENIYA ; Akihide YAMAMOTO ; Kazuhiro KOSHINO ; Takashi TEMMA ; Tetsuya FUKUDA ; Yoshiko FUJITA ; Akemi KAKINO ; Shigehiko KANAYA ; Tatsuya SAWAMURA ; Hidehiro IIDA
Nuclear Medicine and Molecular Imaging 2018;52(2):144-153
PURPOSE: Oxidized low-density lipoprotein (oxLDL) plays a key role in endothelial dysfunction, vascular inflammation, and atherogenesis. The aim of this study was to assess blood clearance and in vivo kinetics of radiolabeled oxLDL in mice.METHODS: We synthesized ¹²³I-oxLDL by the iodine monochloride method, and performed an uptake study in CHO cells transfected with lectin-like oxLDL receptor-1 (LOX-1). In addition, we evaluated the consistency between the ¹²³I-oxLDL autoradiogram and the fluorescence image of DiI-oxLDL after intravenous injection for both spleen and liver. Whole-body dynamic planar images were acquired 10 min post injection of ¹²³I-oxLDL to generate regional time-activity curves (TACs) of the liver, heart, lungs, kidney, head, and abdomen. Regional radioactivity for those excised tissues as well as the bladder, stomach, gut, and thyroid were assessed using a gamma counter, yielding percent injected dose (%ID) and dose uptake ratio (DUR). The presence of ¹²³I-oxLDL in serum was assessed by radio-HPLC.RESULTS: The cellular uptakes of ¹²³I-oxLDL were identical to those of DiI-oxLDL, and autoradiograms and fluorescence images also exhibited consistent distributions. TACs after injection of ¹²³I-oxLDL demonstrated extremely fast kinetics. The radioactivity uptake at 10 min postinjection was highest in the liver (40.8 ± 2.4% ID). Notably, radioactivity uptake was equivalent throughout the rest of the body (39.4 ± 2.7% ID). HPLC analysis revealed no remaining ¹²³I-oxLDL or its metabolites in the blood.CONCLUSION: ¹²³I-OxLDL was widely distributed not only in the liver, but also throughout the whole body, providing insight into the pathophysiological effects of oxLDL.
Abdomen
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Animals
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Atherosclerosis
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CHO Cells
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Chromatography, High Pressure Liquid
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Cricetinae
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Fluorescence
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Head Kidney
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Heart
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Inflammation
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Injections, Intravenous
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Iodine
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Kinetics
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Lipoproteins
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Liver
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Lung
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Methods
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Mice
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Radioactivity
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Spleen
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Stomach
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Thyroid Gland
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Urinary Bladder