1.Skeletal related events in non-small cell lung cancer with bone metastases
Koji Sato ; Nobuhiro Saruki ; Hisashi Hosaka ; Tadashi Murakami ; Yuki Takada ; Akiko Matsunuma ; Kuniaki Suzuki ; Toshifumi Kazama ; Koichi Minato
Palliative Care Research 2010;5(2):145-151
Purpose: Bone is one of the most common sites of metastases in patients with advanced lung cancer. Skeletal complications may cause significant morbidity and decrease performance status (PS). Such complications, referred to as skeletal related events (SREs), include severe bone pain, pathological fractures, spinal cord compression, and hypercalcemia of malignancy. We assessed the clinical impact of SREs in non-small lung cancer (NSCLC) patients with bone metastases. Methods: We retrospectively investigated the clinical records of all 120 patients who were diagnosed advanced NSCLC with bone metastases between June 1998 and March 2009. Results: A total of 23 patients (26.7%) were found to have SREs at the time of initial diagnosis. The median survival time (MST) was 123 days for patients with SREs, while it increased to 276 days for those without SREs. The MST of the patients with SREs were significantly shorter than that of the patients without SREs (p<0.001). We also studied the SREs during clinical courses of 89 patients whose records were available over 3 months. A total of 39 patients (43.8%) were found to have SREs during clinical courses. Conclusion: The patients in NSCLC with bone metastases were often found to have SREs. SREs cause significant morbidity and deterioration of PS. Systemic chemotherapy could not decrease SREs during their clinical courses. Further studies evaluating bisphosphonates in combination with chemotherapy are warranted. Palliat Care Res 2010; 5(2): 145-151
2.Objective Assessment of Erythema caused by Metal Patch Testing using an Erythema Index Meter
Atsushi Takada ; Masaru Fujimoto ; Ken-ichiro Ukichi ; Mitsuaki Morimoto ; Morio Tonogi ; Gen-yuki Yamane ; Shin-ichi Takahashi
Oral Science International 2010;7(2):56-65
The patch test is the most reliable method for diagnosing a metal allergy. However, interpretation of patch test results depends on the experience of the investigator and on the conditions of the individual patient. In the case of patch tests for metal salts, irritant reactions such as pustular or follicular reactions are quite common. Therefore, one must be careful not to interpret irritant reactions as allergic responses, and objective standards to evaluate erythema in patch tests need to be established.In the present study, we attempted to objectively evaluate patch test results for metal salts using an erythema index meter. We used the Erythema Index Difference (EID) (patch test site erythema index (EI) minus the mean EI of healthy skin outside the patch test area and at the unit tape site) rather than the EI itself in order to eliminate the effects of the patch test unit and individual differences. We measured the EID over time in patients with suspected metal allergies to various metals. Significant differences in EID were observed among ++ assessments, + assessments and irritant reactions based on International Contact Dermatitis Research Group (ICDRG) standards. In considering changes in EID over time, allergic and irritant reactions can be discriminated with high sensitivity (73.3%) and specificity (91.2%).These results suggest that the measurement of erythema over time with an erythema index meter is useful for the objective assessment of metal patch test reactions.
3.Diagnostic Ability of Convex-Arrayed Endoscopic Ultrasonography for Major Vascular Invasion in Pancreatic Cancer
Yuki FUJII ; Kazuyuki MATSUMOTO ; Hironari KATO ; Yosuke SARAGAI ; Saimon TAKADA ; Sho MIZUKAWA ; Shinichiro MURO ; Daisuke UCHIDA ; Takeshi TOMODA ; Shigeru HORIGUCHI ; Noriyuki TANAKA ; Hiroyuki OKADA
Clinical Endoscopy 2019;52(5):479-485
BACKGROUND/AIMS: This study aimed to examine the diagnostic ability of endoscopic ultrasonography (EUS) for major vascular invasion in pancreatic cancer and to evaluate the relationship between EUS findings and pathological distance. METHODS: In total, 57 consecutive patients who underwent EUS for pancreatic cancer before surgery were retrospectively reviewed. EUS image findings were divided into four types according to the relationship between the tumor and major vessel (types 1 and 2: invasion, types 3 and 4: non-invasion). We also compared the EUS findings and pathologically measured distances between the tumors and evaluated vessels. RESULTS: The sensitivity, specificity, and accuracy of EUS diagnosis for vascular invasion were 89%, 92%, and 91%, respectively, in the veins and 83%, 94%, and 93%, respectively, in the arteries. The pathologically evaluated distances of cases with type 2 EUS findings were significantly shorter than those of cases with type 3 EUS findings in both the major veins (median [interquartile range], 96 [0–742] µm vs. 2,833 [1,076–5,694] µm, p=0.012) and arteries (623 [0–854] µm vs. 3,097 [1,396–6,000] µm, p=0.0061). All cases with a distance of ≥1,000 µm between the tumors and main vessels were correctly diagnosed. CONCLUSIONS: Tumors at a distance ≥1,000 µm from the main vessels were correctly diagnosed by EUS.
Arteries
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Diagnosis
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Endosonography
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Humans
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Pancreatic Neoplasms
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Retrospective Studies
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Sensitivity and Specificity
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Veins
4.Utility of Endoscopic Ultrasound-Guided Fine Needle Aspiration in the Diagnosis of Local Recurrence of Pancreaticobiliary Cancer after Surgical Resection
Kazuyuki MATSUMOTO ; Hironari KATO ; Shigeru HORIGUCHI ; Takeshi TOMODA ; Akihiro MATSUMI ; Yuki ISHIHARA ; Yosuke SARAGAI ; Saimon TAKADA ; Shinichiro MURO ; Daisuke UCHIDA ; Hiroyuki OKADA
Gut and Liver 2020;14(5):652-658
Background/Aims:
Endoscopic ultrasound (EUS)-guided fine needle aspiration (FNA; EUS-FNA) allows for diagnostic tissue specimens from various regions to be analyzed. How-ever, diagnosing recurrent pancreaticobiliary cancer after surgery is sometimes difficult. We evaluated the efficacy of EUS-FNA in the diagnosis of local recurrence of pancreatico-biliary cancer and analyzed the factors associated with falsenegative results.
Methods:
Fifty-one consecutive patients who underwent EUS-FNA due to suspected recurrence of pancreaticobiliary cancer after surgery in an academic cen-ter were retrospectively analyzed. The criteria for EUS-FNA were a resected margin or remnant pancreas mass, round swollen lymph node (≥10 mm in diameter), and soft-tissue enhancement around a major artery. Patients with suspected liver metastasis or malignant ascites were excluded.
Results:
Thirty-nine of the 51 patients had pancreatic cancer; the remaining 12 had biliary cancer. The target sites for EUS-FNA were the soft tissue around a major artery (n=22, 43%), the resected margin or remnant pancreas (n=12, 24%), and the lymph nodes (n=17, 33%). The median size of the suspected recurrent lesions was 15 mm (range, 8 to 40 mm). The over-all sensitivity, specificity and accuracy of EUS-FNA for the diagnosis of recurrence was 84% (32/38), 100% (13/13), and 88% (45/51), respectively. FNA of the soft tissue around major arteries (odds ratio, 8.23; 95% confidence interval, 1.2 to 166.7; p=0.033) was significantly associated with a falsenegative diagnosis in the multivariate analysis.
Conclusions
EUS-FNA is useful for diagnosing recurrent cancer, even after pancreaticobiliary surgery. The diagnoses of recurrence at soft-tissue sites should be interpreted with caution.
5.Establishment and application of information resource of mutant mice in RIKEN BioResource Research Center
Hiroshi MASUYA ; Daiki USUDA ; Hatsumi NAKATA ; Naomi YUHARA ; Keiko KURIHARA ; Yuri NAMIKI ; Shigeru IWASE ; Toyoyuki TAKADA ; Nobuhiko TANAKA ; Kenta SUZUKI ; Yuki YAMAGATA ; Norio KOBAYASHI ; Atsushi YOSHIKI ; Tatsuya KUSHIDA
Laboratory Animal Research 2021;37(1):21-31
Online databases are crucial infrastructures to facilitate the wide effective and efficient use of mouse mutant resources in life sciences. The number and types of mouse resources have been rapidly growing due to the development of genetic modification technology with associated information of genomic sequence and phenotypes. Therefore, data integration technologies to improve the findability, accessibility, interoperability, and reusability of mouse strain data becomes essential for mouse strain repositories. In 2020, the RIKEN BioResource Research Center released an integrated database of bioresources including, experimental mouse strains, Arabidopsis thaliana as a laboratory plant, cell lines, microorganisms, and genetic materials using Resource Description Framework-related technologies. The integrated database shows multiple advanced features for the dissemination of bioresource information. The current version of our online catalog of mouse strains which functions as a part of the integrated database of bioresources is available from search bars on the page of the Center (https://brc.riken.jp) and the Experimental Animal Division (https://mus.brc.riken.jp/) websites. The BioResource Research Center also released a genomic variation database of mouse strains established in Japan and Western Europe, MoG+ (https://molossinus.brc.riken.jp/mogplus/), and a database for phenotype-phenotype associations across the mouse phenome using data from the International Mouse Phenotyping Platform. In this review, we describe features of current version of databases related to mouse strain resources in RIKEN BioResource Research Center and discuss future views.
6.Establishment and application of information resource of mutant mice in RIKEN BioResource Research Center
Hiroshi MASUYA ; Daiki USUDA ; Hatsumi NAKATA ; Naomi YUHARA ; Keiko KURIHARA ; Yuri NAMIKI ; Shigeru IWASE ; Toyoyuki TAKADA ; Nobuhiko TANAKA ; Kenta SUZUKI ; Yuki YAMAGATA ; Norio KOBAYASHI ; Atsushi YOSHIKI ; Tatsuya KUSHIDA
Laboratory Animal Research 2021;37(1):21-31
Online databases are crucial infrastructures to facilitate the wide effective and efficient use of mouse mutant resources in life sciences. The number and types of mouse resources have been rapidly growing due to the development of genetic modification technology with associated information of genomic sequence and phenotypes. Therefore, data integration technologies to improve the findability, accessibility, interoperability, and reusability of mouse strain data becomes essential for mouse strain repositories. In 2020, the RIKEN BioResource Research Center released an integrated database of bioresources including, experimental mouse strains, Arabidopsis thaliana as a laboratory plant, cell lines, microorganisms, and genetic materials using Resource Description Framework-related technologies. The integrated database shows multiple advanced features for the dissemination of bioresource information. The current version of our online catalog of mouse strains which functions as a part of the integrated database of bioresources is available from search bars on the page of the Center (https://brc.riken.jp) and the Experimental Animal Division (https://mus.brc.riken.jp/) websites. The BioResource Research Center also released a genomic variation database of mouse strains established in Japan and Western Europe, MoG+ (https://molossinus.brc.riken.jp/mogplus/), and a database for phenotype-phenotype associations across the mouse phenome using data from the International Mouse Phenotyping Platform. In this review, we describe features of current version of databases related to mouse strain resources in RIKEN BioResource Research Center and discuss future views.