Medical Electron Microscopy

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Structural changes in rat skeletal muscle induced by swimming at high temperatures (28 and 42°C)
Medical Electron Microscopy - Tập 29 - Trang 28-36 - 1996
Kuang-Tao Wang
Structural changes in rat skeletal muscle induced by swimming to exhaustion were investigated by light and electron microscopy. Male Wistar rats were divided into four groups: a 28°C swimming groups, a 42°C swimming group, and non-swimming control groups at each of these temperatures. The experimental animals were tested in water for 32 min. Immediately after the swimming test, under pentobarbital...... hiện toàn bộ
Differentiation potential in medulloblastomas and primitive gliomas
Medical Electron Microscopy - Tập 27 - Trang 1-7 - 1994
Hiroshi K. Inoue, Hideaki Kohga, Akira Zama, Nobuo Ono, Masaru Nakamura
To increase our understanding of the differentiation potential and cytogenesis of embryonal tumors in the brain, 12 medulloblastomas and 10 primitive gliomas were studied by electron microscopy. Of the medulloblastomas, 6 cases were undifferentiated tumors that demonstrated fine processes similar to microspikes. The remaining 6 cases were poorly-differentiated tumors. Axon-like processes were seen...... hiện toàn bộ
Neurofilaments in health and disease
Medical Electron Microscopy - - 2000
Takahiro Gotow
Effect of thrombopoietin on peroxidase activity of cryopreserved peripheral blood stem cells
Medical Electron Microscopy - Tập 30 - Trang 194-201 - 1997
Munehiro Date, Shosaku Nomura, Kaoruko Katsura, Hiroshi Ichiyoshi, Hiroyuk Kitajima, Yuji Kishimoto, Takashi Kimura, Shirou Fukuhara
Transplantation of mobilized peripheral blood stem cells is increasingly used to facilitate hematological recovery following high-dose chemotherapy. In general, peripheral blood stem cells can be maintained by cryopreservation, e.g., at −80°C, until the day of transplantation. We investigated the effect of thrombopoietin (c-Mpl ligand) on cryopreserved peripheral blood stem cells obtained from 10 ...... hiện toàn bộ
Adenoid basal carcinoma of the uterine cervix: a case report with ultrastructural findings
Medical Electron Microscopy - Tập 33 - Trang 241-245 - 2000
Makoto Hiroi, Toshinori Fukunaga, Eriko Miyazaki, Yoshihiro Hayashi, Naoto Kuroda, Makoto Toi, Keishi Naruse, Hirofumi Nakayama, Hiroshi Kiyoku, Hideaki Enzan
Adenoid basal carcinoma of the uterine cervix is a rare tumor with a favorable prognosis. A case of adenoid basal carcinoma (ABC) of the uterine cervix was studied using light and electron microscopy. The patient was a 74-year-old Japanese woman who had undergone hysterectomy due to cervical intraepithelial neoplasia 3. Incidentally, ABC was found in the resected uterus. The tumor cells made smal...... hiện toàn bộ
Electron microscopic radioautographic study on the nucleic acids and protein syntheses in the aging mouse testis
Medical Electron Microscopy - Tập 27 - Trang 360-362 - 1994
Fulu Gao, Hongjun Ma, Lin Sun, Chunji Jin, Tetsuji Nagata
The ultrastructural difference between3H-thymidine labeled and unlabeled germ cells in mouse testis was observed by electron microscopic radio-autography. The RNA and protein syntheses in the seminiferous tubules of aging mice were also studied using3H-uridine and leucine radioautography. At embryonic day 19, the Sertoli cells and myoid cells labeled with3H-thymidine were often observed. The gonoc...... hiện toàn bộ
Morphological and cytochemical changes in human mast cells during culture
Medical Electron Microscopy - Tập 30 Số 1 - Trang 25-30 - 1997
Mitsuoki Eguchi, Tatsutoshi Nakahata, Kohichiro Tsuji, Toshiharu Furukawa
Expressions of endothelin-1, fibronectin, and interleukin-1α of human umbilical vein endothelial cells under prolonged culture
Medical Electron Microscopy - - 2001
H. Kiyonaga, Yoshiaki Doi, Yuji Karasaki, Keiichi Arashidani, Hideaki Itoh, Sunao Fujimoto
We examined human umbilical vein endothelial cells (HUVECs) under prolonged culture by electron microscopy and by light and electron immunocytochemistry including double immunolabeling. Based on the cell area of HUVECs through multiple passages, we divided the cells into first, second, and third stages, which exhibited distinct morphological and immunocytochemical characteristics. During the firs...... hiện toàn bộ
Expression of matrix metalloproteinases, tissue inhibitors of metalloproteinase, collagens, and Ki67 antigen in pleural malignant mesothelioma: an immunohistochemical and electron microscopic study
Medical Electron Microscopy - Tập 35 - Trang 16-23 - 2002
H. Hirano, Motomu Tsuji, Tomohiko Kizaki, Terumasa Sashikata, Yasuyoshi Yoshi, Yoshikatsu Okada, Hiroshi Mori
Because matrix metalloproteinases (MMPs) degrade extracellular matrix, including basement membrane, and because tissue inhibitors of MMP (TIMPs) suppress MMP activities, MMPs and TIMPs are considered to play important roles in invasion and metastasis in many malignancies. We examined immunohistochemically the expression of MMPs (MMP-1, -2, -3, -7, and -9), TIMPs (TIMP-1 and -2), and collagens (ty...... hiện toàn bộ
Rapid induction of 7H6 tight junction-associated protein and paracellular barrier function in capillary endothelial cells of porcine brain in vitro by treatment with astrocyte conditioned medium and cAMP
Medical Electron Microscopy - Tập 30 - Trang 8-14 - 1997
Yumiko Yamada-Sasamori, Takeo Baba, Norimasa Sawada, Hirotoshi Tobioka, Hiroshi Isomura, Kazuo Hashi, Michio Mori
The capillary endothelium of the central nervous system functions as a highly selective permeability barrier, corresponding to the blood-brain barrier (BBB). In the present study, we assessed the roles of the tight junction-associated proteins ZO-1 and 7H6 in the development of brain endothelial barrier function. Capillary endothelial cells (ECs) of porcine brain were cultured and treated with a c...... hiện toàn bộ
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