1.Usefulness of Rapid Immunostaining in Intra-Operative Diagnosis of Sentinel Lymph Node Metastasis of Breast Cancer
Satoshi IKEDA ; Chigusa NAGATA ; Keiko SUZUKI
Journal of the Japanese Association of Rural Medicine 2014;63(4):618-623
In breast cancer cases, intra-operative diagnosis of sentinel lymph node metastasis has been performed widely. It is diagnosed at present by HE staining, but more objective methods are needed. In this study using 166 examples, we compared the methods using rapid immunostaining with the genetic examination. In rapid immunostaining, we recognized metastasis using cytokeratin which was an epithelial cell marker used in the serial sections for frozen histological diagnosis. In conclusion, because metastasis could be diagnosed accurately and pathologist&rsqup;s stress would be reduced, rapid immunostaining is useful for intraoperative diagnosis.
2.Problem in Epidermal Growth Factor Receptor Gene Mutation Detection Using Trans-Bronchial Lung Biopsy Samples
Satoshi IKEDA ; Chigusa NAGATA ; Keiko SUZUKI
Journal of the Japanese Association of Rural Medicine 2016;64(6):1028-1034
Epidermal growth factor receptor (EGFR) gene mutation examination is now performed in most medical institutions in order to select the molecular targeted medicine for lung cancer. It became clear that the positive rate of the biopsy material was lower than that of the surgical sample in this hospital. The cause was attributed to false negatives due to low tumor cell content in biopsy specimens. We investigated the presence of the mutation using surgical samples and preoperative biopsy specimens from the same patients in 13 cases. Furthermore, we investigated the tumor cell content of the biopsy specimens by cell counting. Results showed that 3 of 6 biopsy specimens that were associated with positive surgical samples were judged to be negative. The tumor cell content was less than 5% in all negative cases. Regarding EGFR gene mutation examination, we should carefully determine tumor cell content when using biopsy specimens.
3.Detection of HER-2 Protein and DNA Amplification in Breast, Stomach and Colon Cancers
Satoshi IKEDA ; Chigusa NAGATA ; Keiko SUZUKI
Journal of the Japanese Association of Rural Medicine 2014;63(2):99-104
We investigated the detection situation of the HER-2 examination that was performed to investigate the adaptation of the molecular targeted medicine trastuzumab for mammary and gastric cancers. The HER-2 positive rate was higher in biopsy specimens than in surgical specimen. In gastric cancer, the positive rate was significantly high when it was of the papillary type, histologically. In comparison with mammary cancer, the percentage of FISH positive was high in 2+ cases. In addition, as the results of trial investigation showed, HER-2 positive cases ware few in colon cancer.
4.A Case of Spindle Cell Type Medullary Carcinoma of the Thyroid Diagnosed by Immunocytochemistry
Satoshi IKEDA ; Atsushi Uchida ; Kazunari INOUE ; Keiko SUZUKI
Journal of the Japanese Association of Rural Medicine 2016;65(4):868-871
We report a case of spindle cell type medullary carcinoma of the thyroid in a 77-year-old man. Fine needle aspiration cytology showed numerous spindle cells without inflammation and hemorrhage. The spindle cells were uniform and exhibited no malignant features. Immunocytochemistry was positive for carcinoembryonic antigen and calcitonin, and the tumor was diagnosed as spindle cell type medullary carcinoma. There are various histological subtypes of medullary carcinoma, and diagnosis by cytomorphology alone is difficult. Preservation with LBC fixative was helpful for diagnosis by immunocytochemistry in this case.
5.Detection of High Risk Type HPV by Means of Clinichiptm in Patients with Cervical Dysplasia
Satoshi IKEDA ; Chigusa NAGATA ; Koji SHIMABUKURO ; Keiko SUZUKI
Journal of the Japanese Association of Rural Medicine 2014;63(1):29-34
It is known that uterine cervical cancer is caused by persistent infection with high-risk type of HPV (human papilloma virus). We have run HPV genotyping tests on patients since November, 2011. In 111 cases so far examined, HPV types 16, 52 and 58 were detected with high frequency, but type 18 was with low frequency. This trend was comparable to nationwide tendency. Type 52, 56 and 58 were detected from the patients of advanced age frequently. There weredifferences in HPV infection rate between cytology-negative cases and positive cases, but there was not the difference in HPV typing by cytology-negative and positive patients. Furthermore, it was made clear that the superinfection of HPV who significantly related to the development of tumor. In the cytology negative patients who were followed up because of dysplasia, there are many who are negative for high risk HPV. Therefore, HPV genotyping examination may help physicians determine the relative priority for treatment.
6.Two Cases of Poststroke Hemiplegic Patients Whose Gate Ability Was Improved by Using Twister Orthoses
Sayaka ADACHI ; Keiko FURUKAWA ; Sayaka IKEDA ; Norihiko KODAMA ; Kenji MATSUMOTO ; Kazuhisa DOMEN
The Japanese Journal of Rehabilitation Medicine 2014;51(12):799-802
Twister orthoses are used to correct in-toeing and out-toeing, and consist of a pelvic band, a twister cable, and an ankle-foot orthosis (AFO). The twister cable is made of spiral coiled springs and connects the pelvic band with the AFO. Twister orthoses are used for children with lower limb paralysis who in many cases present with a rotation deformity of the hip joint ; however, their use in adults has not yet been reported. We report our experience treating two cases of adult poststroke hemiplegic patients whose gate ability was improved by using twister orthoses.
7.Current State of Critical Hemorrhage during Home Palliative Care for Terminally Ill Cancer Patients
Kotaro Hashimoto ; Muneo Tanaka ; Suguru Kanno ; Junko Yano ; Yoshie Iwabuchi ; Takumi Suda ; Keiko Ikeda ; Yoshiaki Tanaka ; Junichi Tanaka ; Masao Suzuki
Palliative Care Research 2016;11(1):506-509
Purpose: This study investigated the current state of critical hemorrhage during home palliative care for terminally ill cancer patients. Methods: We conducted a retrospective medical chart review of 7 cancer patients (1.4%) who received home palliative care from our clinic and died of critical hemorrhage at home from October 2007 to December 2014. Results: Four patients were male, the mean age was 70±11 years, and underlying diseases were different. None of the patients were accompanied by medical staff at the onset of bleeding. Six patients died at home and one patient was admitted to hospital for hemostasis. Six patients had a pre-hemorrhage episode more than 24 hours before critical hemorrhage occurred from the same site. One patient was administered a hemostatic agent, hemostasis was attempted in one, and one was given sedation. Six patients wanted to die at home, and did die at home. Discussion: If terminally ill cancer patients have critical hemorrhage at home, our options are limited. The results of this study suggest the importance of hemorrhage risk assessment and advance care planning.
8.Influences of Allocating HIV/AIDS Specialized Nurses on Clinical Outcomes in Japan.
Masakazu NISHIGAKI ; Yuko SUGINO ; Jongmi SEO ; Megumi SHIMADA ; Kazuko IKEDA ; Keiko KAZUMA
Asian Nursing Research 2011;5(1):11-18
PURPOSE: This retrospective cohort study was conducted to demonstrate how allocation of nurses specialized in HIV care influences clinical outcomes of antiretroviral therapy (ART) for people living with HIV (PLWH). METHODS: The medical records of 116 PLWH who started ART between January 2002 and December 2004 were analyzed. Occurrence of viral suppression and viral relapse after suppression achievement and their time from baseline were observed as clinical outcomes related to ART. Clinical outcomes were obtained from medical records between January 2002 and December 2006. PLWH were classified into two groups according to allocation (n = 95, nurse allocated group) or nonallocation (n = 21, nurse nonallocated group) of nurses specialized in HIV. RESULTS: Survival analysis showed that HIV viral load was suppressed more rapidly and continuously in nurse allocated group than nonallocated group (p < .0001). Viral relapse after suppression achievement occurred easily in nurse nonallocated group than allocated group (p = .003). CONCLUSIONS: The present findings demonstrated that the role of specialized nurses is critically important from the viewpoint of clinical outcome.
Achievement
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Antiretroviral Therapy, Highly Active
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Cohort Studies
;
HIV
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HIV Infections
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Japan
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Medical Records
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Nursing Service, Hospital
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Recurrence
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Retrospective Studies
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Viral Load
9.A Survey of the Collection, Provision, and Application of Drug Safety Information at Hospitals
Maki Masuyama ; Hirokazu Hasegawa ; Mie Ikeda ; Kazuhiko Mori ; Keiko Yoshino ; Yoshiaki Ara ; Hisanori Miyashita ; Yasuo Ide ; Yoshihiko Suzuki ; Masahiro Hayashi ; Tsutomu Matsuda
Japanese Journal of Drug Informatics 2013;14(4):170-178
Objective: We conducted a questionnaire survey to comprehend the situation regarding the collection, provision, and utilization of drug safety information at hospitals. In addition, we asked pharmaceutical companies how they select medical institutions to provide drug safety information. We also investigated the current situation of information provision to Tokyo Medial Center by pharmaceutical companies.
Method: A questionnaire was mailed to all hospitals in Japan. The survey was conducted between January 13 and February 10, 2011. Moreover, we asked thirteen pharmaceutical companies by telephone and e-mail about the implementation status of the provision of information and performed a survey at Tokyo Medical Center on the current situation of information provision by pharmaceutical companies regarding revisions to precaution sections in package inserts.
Results: The results of the questionnaire survey (response rate: 41.2%) showed that the major information sources for hospitals were medical representatives (77.8%), Drug Safety Update (50.3%) and direct mails (49.3%). Furthermore, in the case of drugs prescribed exclusively for extramural dispensing, fewer hospitals responded that medical representatives of the pharmaceutical companies provided drug safety information and more hospitals responded that they did not obtain any drug safety information at all, compared with drugs listed in the hospital formularies.
Conclusion: To minimize the risks of drugs, healthcare professionals must collect a wide range of drug safety information and must utilize this information in their medical practice. Therefore, it is important that pharmaceutical companies and regulatory authorities make an effort to provide suitable information dissemination to medical institutions. Furthermore, medical institutions must also strengthen their systems for collecting drug safety information and providing such information to healthcare professionals.
10.A Molecular Mucosal Adjuvant To Enhance Immunity Against Pneumococcal Infection In The Elderly.
Yoshiko FUKUYAMA ; Yorihiko IKEDA ; Junichiro OHORI ; Gen SUGITA ; Kazuyoshi ASO ; Keiko FUJIHASHI ; David E BRILES ; Jerry R MCGHEE ; Kohtaro FUJIHASHI
Immune Network 2015;15(1):9-15
Streptococcus pneumoniae (the pneumococcus) causes a major upper respiratory tract infection often leading to severe illness and death in the elderly. Thus, it is important to induce safe and effective mucosal immunity against this pathogen in order to prevent pnuemocaccal infection. However, this is a very difficult task to elicit protective mucosal IgA antibody responses in older individuals. A combind nasal adjuvant consisting of a plasmid encoding the Flt3 ligand cDNA (pFL) and CpG oligonucleotide (CpG ODN) successfully enhanced S. pneumoniae-specific mucosal immunity in aged mice. In particular, a pneumococcal surface protein A-based nasal vaccine given with pFL and CpG ODN induced complete protection from S. pneumoniae infection. These results show that nasal delivery of a combined DNA adjuvant offers an attractive potential for protection against the pneumococcus in the elderly.
Aged*
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Aging
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Animals
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Antibody Formation
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Bacterial Infections
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DNA
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DNA, Complementary
;
Humans
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Immunity, Mucosal
;
Immunoglobulin A
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Mice
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Mucous Membrane
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Plasmids
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Pneumococcal Infections*
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Pneumonia
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Respiratory Tract Infections
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Streptococcus pneumoniae
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Vaccination