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排序方式: 共有223条查询结果,搜索用时 140 毫秒
1.
Suchi Raghunathan Corey L. Reynolds Robert J. Schwartz M. David Stewart Bradley K. McConnell 《Fundamental & clinical pharmacology》2019,33(1):25-30
Inbred mouse strains are the most widely used mammalian model organism in biomedical research owing to ease of genetic manipulation and short lifespan; however, each inbred strain possesses a unique repertoire of deleterious homozygous alleles that can make a specific strain more susceptible to a particular disease. In the current study, we report dystrophic cardiac calcinosis (DCC) in C.B‐17 SCID male mice at 10 weeks of age with no significant change in cardiac function. Acquisition of DCC was characterized by myocardial injury, fibrosis, calcification, and necrosis of the tissue. At 10 weeks of age, 38% of the C.B‐17 SCID mice from two different commercial colonies exhibited significant calcinosis on the ventricular epicardium, predominantly on the right ventricle. The frequency of calcinosis was more than 50% for mice obtained from Taconic's Cambridge City colony and 25% for mice obtained from Taconic's German Town colony. Interestingly, the DCC phenotype did not affect cardiac function at 10 weeks of age. No differences in echocardiography or electrocardiography were observed between the calcinotic and non‐calcinotic mice from either colony. Our findings suggest that C.B‐17 SCID mice exhibit DCC as early as 10 weeks of age with no significant impact on cardiac function. This strain of mice should be cautiously considered for the study of cardiac physiology. 相似文献
2.
Shigeo Nakamura Takashi Koshikawa Tsuneko Sato Kayoko Hayashi Taizan Suchi 《Pathology international》1992,42(10):745-750
We describe a 54-year-old woman with primary pulmonary adenocarcinoma showing a characteristic papillary architecture and prominent cilia formation. Immunohistochemically, the tumor cells were positive for carcinoembryonic antigen (CEA), epithelial membrane antigen (EMA) and Leu Ml, and negative for lactoferrin and surfactant apoprotein. An ultrastructural study also indicated differentiation toward bronchial surface epithelial cells. To our knowledge, this type of neoplasm has not been reported as peripheral-type adenocarcinoma of the lung. Acta Pathol Jpn 42: 745–750, 1992. 相似文献
3.
M Kojima Y Hosomura H Itoh T Johshita Y Ohno K Yoshida S Asano H Wakasa S Nakamura T Suchi 《Acta pathologica japonica》1991,41(5):363-368
In order to clarify the appearance of monocytoid B lymphocytes (MBLs) in abscess-forming granulomatous lymphadenitis (AGL) and the relation between AGL and cat-scratch disease (CSD), 48 cases of AGL were studied histologically. MBLs were present in about 50% of AGL cases. Warthin-Starry (WS) silver stain-positive bacteria, which are the causative agent of CSD, were present in 52.4% of AGL cases with MBLs and 59.2% of AGL cases without MBLs. The appearance of MBLs in AGL was not related to various clinical features, including disease interval from initial lymphadenopathy to lymph node biopsy. Histologically, epithelioid cell clusters appeared in about 70% of MBL-positive AGL cases, but were not observed in MBL-negative AGL. Therefore, a close interaction between MBLs and epithelioid cells in AGL is suggested, and we emphasize that the histological features of some AGL cases resemble those of toxoplasmic lymphadenitis. 相似文献
4.
Masaru Kojima Shigeo Nakamura Yasuo Hosomura Kazuhiko Shimizu Yoshiyuki Kurabayashi Hideaki Itoh Katsue Yoshida Yoshihiro Ohno Akihiro Kaneko Shigeyuki Asano Haruki Wakasa Taizan Suchi Takashi Johshita 《Pathology international》1993,43(1-2):11-17
In order to clarify the histological and immunohistochemical characteristics of suppurative granuloma in abscess-forming granulomatous lymphadenitis (AGL), and the relation between AGL and cat scratch disease (CSD), 36 cases of AGL were studied. The combined results showed that there were two types of suppurative granulomas. The suppurative granulomas histologically revealed small lymphocytes of predominantly T cell phenotype distributed among the epithelioid histiocytes bordering central necrotic areas in the suppurative granulomas. These suppurative granulomas could be further subdivided into two groups, mainly those with and without the intermingling of large transformed cells of B-cell phenotypes: Type B granuloma with large transformed B cells and Type A without large transformed B cells. Both types of granulomas were observed in a varying degree in most cases. According to the predominant type of granulomas, 36 patients with AGL were further classified into two groups: Group I of Type A dominance and Group II of Type B dominance. Warthin-Starry (WS) silver stain positive bacteria, which are said to be a causative agent of CSD, were present in about 50% of both groups. No Brown-Hopps' Gram-positive bacteria, fungus, toxoplasma, Chlamydia or Bacillus Calmette-Guerin antigen were found in any case. Clinically, there was no significant difference between these two groups. On the other hand, the detection of WS-positive bacteria seemed to have some relationship with the duration of disease and the history of exposure to cats, and 70% of AGL cases occurred in autumn without a single concurrent epidemic. 相似文献
5.
Phenotyping of proliferating lymphocytes in angioimmunoblastic lymphadenopathy and related lesions by the double immunoenzymatic staining technique. 总被引:2,自引:0,他引:2
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R. Namikawa T. Suchi R. Ueda G. Itoh K. Koike K. Ota T. Takahashi 《The American journal of pathology》1987,127(2):279-287
Biopsy specimens of lymph nodes with the histologic characteristics of angioimmunoblastic lymphadenopathy with dysproteinemia (AILD) were obtained from 9 cases (4 cases of AILD and 5 cases of AILD-like T lymphoma [AILD-T]) and histologically analyzed by the use of a double immunoenzymatic staining technique with the combination of a monoclonal antibody against lymphocyte membrane antigen and that against human DNA polymerase alpha (pol alpha), which is detectable in the nucleus of the cells in G1, S, and G2 phases. In all 9 cases, the pol alpha + proliferating cells had a peripheral T-cell phenotype with T11 and Leu-4 antigens, whereas proliferating B cells with B1 antigen were rarely observed. As for T-cell subset antigens, the proliferating T cells had T4+ helper/inducer phenotype in 7 cases, while T8+ suppressor/killer T cells proliferated in 2 cases, although a significant number of T4+ proliferating cells were also recognized. The study on malignant lymphomas that evolved in the 2 cases showed that the T-subset antigens on major proliferating tumor cells were the same as those found in the preceding AILD lesions, suggesting that lymphoma T cells originate from the AILD lesion. The results suggested that AILD without histologic manifestations of malignancy and AILD-T may be a neoplastic disease derived from either subset of peripheral T cells. 相似文献
6.
S Nakamura N Takagi K Kitoh T Koshikawa K Hayashi K Yamamoto H Suzuki A Oyama R Ueda T Suchi 《Acta pathologica japonica》1992,42(2):141-149
A case of angioimmunoblastic lymphadenopathy with dysproteinemia (AILD) which showed widespread involvement of the gastrointestinal tract is reported. A lymph node biopsy specimen showed the characteristic histological features of AILD. During the progression of the illness, lymphomatous lesions developed in the gastrointestinal tract, complicated by cytomegalovirus infection. A double immunoenzymatic study using a combination of Ki-67 antibody and antibodies against surface antigens demonstrated that CD3+, CD4+, and/or T-cell receptor (TCR) beta+ cells were predominant (67-68%) among the population of proliferating Ki-67% cells, rather than CD8+ or CD22+ cells. Clonal rearrangement of the TCR beta chain gene was also detected. These findings provide further evidence for the neoplastic nature of lesions of this type, and the diagnosis of peripheral T-cell lymphoma. 相似文献
7.
Kojima M Nakamura S Itoh H Yoshida K Suchi T Masawa N 《APMIS : acta pathologica, microbiologica, et immunologica Scandinavica》2001,109(2):141-146
The lymph node lesions of lupus lymphadenitis are characterized by necrosis sometimes accompanied by hematoxylin bodies, but only a few immunohistological analyses of this unique lesion have been reported. In this study we investigated the immunopathogenesis of these lesions. Lymph node specimens from four patients were analyzed immunohistochemically by applying recently developed monoclonal antibodies to immunocompetent cells. Necrosis occupied almost the entire lymph node in two cases (extensive type), whereas small foci of necrosis were found in the paracortex in the remaining two (localized type). No hematoxylin body formation was detected in any of the samples. Necrosis of the small muscular arteries, arterioles and venules was seen in the necrotic areas in all four cases. In one case of the localized type, necrotizing angitis was seen in a few arterioles and venules in the non-necrotic area. By immunohistology, amorphous depositions of immunoglobulins and C3 were demonstrated in the walls of the arterioles and venules in two cases. Our findings indicate that vasculitis due to local deposition of immune complexes in the blood vessels may play an important role in the pathogenesis of necrosis in lupus lymphadenitis. 相似文献
8.
Tetsuya Murata Shigeo Nakamura Hiroya Kato Yasushi Yatabe Taizo Shiraishi Makoto Kuroda Ryulchi Yatani Taizan Suchi 《Pathology international》1997,47(11):801-805
A case of Hodgkln's disease (HD), lymphocyte depression (LD) type In an Immunosuppressive patient is described. The patient was a 48-year-old male and his parents were born In the Kyushu area, which is an endemic area for adult T cell lymphomaheukemla (ATL). He was seropositive for ATL virus (ATLV, also referred to as HTLV-I) and showed a marked Immunosuppressive condition. He developed LD-HD and Pneumocystis carinii pneumonia, and died due to respiratory failure. The Immunohistochemical and in situ hybridization analyses revealed that the Reed-Sternberglike cells In the lymph node biopsy sample were positive for Ber-H2 (CD30), Leu-M1 (CD15), L-26 (CD20), Bcl-2, p53 and EBER, the viral genome of Epstein-Barr virus (EBV). 相似文献
9.
10.
M Hayashi H Tsuda M Okumura T Sakata N Ito T Suchi 《Journal of comparative pathology》1988,98(1):11-21
A histological classification of 36 cases of malignant lymphoma in slaughtered swine is reported. All the lymphomas observed were diagnosed as diffuse types and were further classified into four types by their histological characteristics based on the classification of the Japanese Lymphoma Study Group (Suchi et al., 1979). The cases consisted of 16 of the Burkitt type, 2 of the immunoblastic type, 3 of the medium-sized cell type and 15 of the mixed cell type. The histological appearances of these lymphomas were compared with those of human lymphomas. All tumours closely resembled non-Hodgkin's diffuse type of B cell lymphoma and differed from tumours in other sites such as the liver and kidneys. 相似文献