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2. SECRETION OF THE CONTENT OF GRANULES AND ITS RELATIONSHIP TO THE ACID PHOSPHATASE REACTION IN REGENERATING RAT PERITONEAL MAST CELLS

Author

Osamu Takeoka

Subjects
Histology, Physiology, medicine.medical_treatment, Granule (cell biology), Intraperitoneal injection, Acid phosphatase, Cell Biology, Biology, Golgi apparatus, Biochemistry, Pathology and Forensic Medicine, Cell biology, symbols.namesake, Cytosol, Peritoneal cavity, medicine.anatomical_structure, Reticular connective tissue, symbols, biology.protein, medicine, Secretion
Abstract

With an intraperitoneal injection of distilled water into the peritoneal cavity of rats, the peritoneal mast cells disappeared completely. Regenerating mast cells were studied two weeks after the injection. In these mast cells there was smooth transition in the structures of granules from a compact through a reticular granule to a granule with residual materials. This sequence was interpreted as a secretion process. This process was also observed in a few mast cells of control animals, but very active in the regenerating mast cells. Acid phosphatase activity of the mast cells in the control rats was observed in the Golgi apparatus and intergranular cytoplasmic matrix. No reaction was found in the granules except for a few granules of a few mast cells. A distinct positive reaction was observed in many granules of many regenerating mast cells. Acid phosphatase positive granules did not have a compact and homogeneous but a reticular structure in the regenerating mast cells as well as in a few mast cells of control animals. An intimate relationship observed between the transition of structures of granules and the intensities of their acid phosphatase reaction suggests that the acid phosphatase or enzymes activated simultaneously with the acid phosphatase play an important role in the degradation of the content of granules which would be secreted.

Published
1974
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3. GENERAL SESSION

Author

Kenjiro YASUDA, Chizuka IDE, Takuma SAITO, Masaya MATSUSHITA, Nasasuke ARAKI, F. Murata, K. Yoshida, S. Ohno, T. Nagata, Keizo YOSHIDA, Shinichi OHNO, Fusayoshi MURATA, Noboru YAMAMOTO, Shuji YAMASHITA, Yasuhiro SAKAI, HIROO KIMOTO, TOMIO ODA, Hiroshi MAYAHARA, Yasuhiro AGO, Toyoshi FUJIMOTO, Takao ANDO, Satoru SHIMIZU, Kazuyori YAMADA, Takuji OHKURA, Minoru OHKURA, Motohiko OHKURA, Kei-ichi HIRAI, Tetsuo Ishii, Toshiro Shiota, Kensuke WATANABE, Shohei YAMASHINA, Kazuhiro KAWAI, Futoshi IIDA, Kiyohiro KOMIYAMA, Akira SATO, Tsutomu KATSUYAMA, Tatsuo SUGANUMA, Tsuyoshi NASU, Katsuro NAGASE, Masayuki FUJIWARA, Michihito TAKAHASHI, Masae TATEMATSU, Yoshinori HASHIMOTO, Yuzo UCHIDA, Yasunori KOTAKE, Yasukuni TSUJI, Kioko KAWAI, Hajime SUGIHARA, Hideo Tsuchiyama, Tomoyuki HARADA, Akitoshi SUGIMOTO, Tsugio AMEMIYA, Hidehiko YOSHIDA, Takeshi TSURU, Masanobu MAENO, Yukiharu SHIRAISHI, Masanobu AKAGI, Takeshi TSUSU, Haruhiko MIYAYAMA, Masataka TAKEMIYA, Kiyoaki KITAJIMA, Yasuo SATOU, Narumi OGAWA, Kiyoki OKADA, Takashi KISHIMOTO, Akira KAWAOI, Tadao OKANO, Toshio SHIKATA, Takahiro YAMAGUCHI, Tadahiko HOSHINO, Hideo TAMATE, R. Yoshiyuki OSAMURA, Etsuko NAKAHASHI, Minoru TANAKA, Noboru YANAIHARA, Yuzuru KAMEYA, Munemitsu HOSHINO, Nakazo WATARI, Toru KAMEYA, Kazuyoshi DOBASEI, Hajime OKUMURA, Fumiaki NISHIYAMA, Norio KAWAI, Kiyoe SAMPEI, Yukihiro OHSATO, Hiroshi HIRANO, Yoko KAMEDA, Akira IKEDA, Tanekazu HARADA, Kunihiko ITO, Yoshio ASO, Yoshihisa OHTAWARA, Kazuo SUZUKI, Atsushi TAJIMA, Kimio FUJITA, Motohiko AIHA, Hiroshi SUZUKI, Shinichi Izumi, Fumiko Mitani, Yuzuru Ishimura, I. NAGATSU, N. KARASAWA, Y. KONDO, S. INAGAKI, MASANORI MURAKOSHI, ICHIRO YAMAMOTO, Motohiro Ogura, Kiyohisa Nishikawa, Ryuei Maeda, Junko Toki, Takaaki YANAGISAWA, Shosaburo TAKUMA, Daizo SASAKI, Masayoshi SIMAZAKI, Takehiro MITSUHASHI, Kiyoshi HASEGAWA, Yawara SUMI, Ayako TANAKA, Takeshi MURAKI, Takuro MURAKI, Yuichiro Yamasaki, Shigeru Kuramochi, Shinichi Yoshimura, Takao ANDOH, Hiroaki MIYAJIMA, Masaji NOMURA, Fujio NUMANO, Yoshinori WATANABE, Michiyoshi YAJIMA, Sadakiyo WATABIRI, Kyoko TAKENO, Nobuyoshi YOSHIDA, Kohtaro TANIYAMA, Chikako TANAKA, Toshiko NAGASHIMA, Hirokuni BEPPU, Masanori UONO, Hiroshi YAMADA, Kiminao MIZUKAWA, H. IMAI, K. NAKAI, T. ITAKURA, N. KOMAI, T. NAGAI, H. KIMURA, K. IMAMOTO, K. MAEDA, Kikuko IMAMOTO, Toshisaburo NAGAI, Katsuko KATAOKA, Keisuke SHIMIZU, Toshiharu YAMAMOTO, Junzo OCHI, Toshio NAKAMURA, Yasuhiko IBATA, H. KOJIMA, T. NAGATSU, Hideki Kojima, Shigemi Anraku, Nobuo Toshima, Masami Yoshida, Ken Kotorii, Y. TAKAHASHI, T. SAKUMOTO, M. TOHYAMA, Y. KIMOTO, K. YAMAMOTO, A. KASHIBA, N. SHIMIZU, K. SAKAI, D. SALVERT, M. JOUVET, Takenobu KISHIDA, Shozo KITO, Eiko ITOGA, Shozo KITOI, Ichizi WAKABAYASHI, Norio OGAWA, Hisanobu KAIYA, Tsuyoshi IWATA, Masuyuki NAMBA, Yasunari TSUCHIHASHI, Masaru FUKUDA, Setsuya FUJITA, Kazuo NAKANISHI, K. Kagawa, H. Tomimasu, M. Kamachi, O. Kitamura, T. Ashihara, O. Takeoka, T. Hidaka, Akiyoshi NISHIKAWA, Hideki MORI, Masayoshi TAKAHASHI, Osami MAEDA, K. Onogi, R. Ito, Hisanobu KAITA, Kazuo KATO, Michiko Shiihashi, Tetsuro SAKUMOTO, Yasukazu NAGATO, Yanagi TADANO, Masashi TADANO, Kiyoshi OSHIMA, Akiko OKADA, Maseru KIMURA, Kazuto NOKUBI, Mario KATHO, Akira KASHIBA, Hisashi HASHIMOTO, Shigeru TAKIGAMI, Sotokichi MORII, Iezo NAKAO, Fumie SASAKI, Kyozo WATANABE, T. Daimon, Tatsuhiko MUKUDAI, Tetsushi WADA, Shinsuke IKADO, Takahiro Yamagami, Atsushi Gamou, Masahiko Mori, Junzo SASAKI, Shu NAKAMOTO, Masaharu MORI, Mari Asada-Kubota, Shinsuke Kanamura, Satoru MORIGUCHI, Yasuo KISHINO, Osamu KITAMURA, Takashi HIDAKA, Tsukasa ASHIHARA, Osamu TAKEOKA, Kenichirou INOMATA, Shintaro OKADA, Hyakuji YABUUCHI, Shiro NAKAGAWA, Chiharu SUEMATSU, Ryuichi KANAGAWA, TETSUZO KUMAMOTO, Kazuo OGAWA, Hiroshi OGAWA, Koji KAMI, Tadao MITSUI, Vinci MIZUHIRA, Hiroshi KIMURA, Toshihiro MAEDA, K. SATOH, Shigeto KANDA, Nagayasu OTSUKA, Toshio SUZUKI, Tetsuo HAMADA, Teruo IWAMASA, Tadao TAKEUCHI, Keiichi WATANABE, Noriyuki KOMATSU, Kenji WATANABE, Hiroko OBATA, Yutaka SANO, Tetsuji NAGATA, Haruo KINOSHITA, and Seiichi KUBO

Subjects
Histology, Physiology, Cell Biology, Biochemistry, Pathology and Forensic Medicine
Published
1979
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4. Autoradiographic Studies on Cell Proliferation and Differentiation in the Human Epidermis in Vivo

Author

Masashi Kodama, Isamu Hashimoto, Setsuya Fujita, Osamu Takeoka, Tadahisa Kitamura, Masa-aki Shinoda, and Tsukasa Ashihara

Subjects
Histology, Cell division, Cell growth, Cellular differentiation, Cell, Anatomy, Biology, Cell biology, Melanin, Basal (phylogenetics), medicine.anatomical_structure, medicine, Epidermis, Mitosis
Abstract

Using in vivo local labeling method, cell proliferation and differentiatiation in the human epidermis covering the mammary gland of 41 and 42 year old women were studied by means of 3H-thymidine autoradiography.1. Stratum germinativum or G-zone of the human epidermis in which cells are proliferating corresponds to epibasal and basal layers, but not the basal layer alone. Proliferating cells are predominantly located in the epibasal layer.2. Melanin containing cell in the basal layer is a kind of minor-differentiated cell and proliferates at much slower rate than the non-pigmented basal cell.3. Generation time of the genertive cell is estimated at 4 days and the maximum length of DNA synthesis, at 10 hours. Many differentiating cells stay in the epibasal layer and they amount to 50% of the total cells in the layer. Their transit time in the layer is estimated at an average of 4 days.4. The unequal division or (G, M) division is not a mechanism to maintain the steady state, nor do any types of mitosis play a decisive role in the regulation of cell differentiation. Mitoses yield two equivalent daughter cells which are in the same state as the mother cell.5. Cell differentiation in the human epidermis seems to be determined by the rule of probability in an individual daughter cell during t1 or G1 period, as has been confirmed in various other cell systems.

Published
1967
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5. Primary Pulmonary Hypertension : A Case Report with Discussion on Its Pathogenesis

Author

Isao Niki, Ochiai M, Osamu Takeoka, Yoshiaki Hishimoto, Toshiaki Kiriyama, Susumu Ichinose, Naoto Endo, and Tohru Matsuura

Subjects
Adult, Cardiac Catheterization, medicine.medical_specialty, Pathology, Physiology, Hypertension, Pulmonary, Autopsy, Pulmonary Artery, Pathogenesis, Electrocardiography, Pregnancy, Internal medicine, medicine, Humans, Histological examination, business.industry, Angiocardiography, medicine.disease, Pulmonary hypertension, Stenosis, Etiology, Cardiology, Female, Thickening, Cardiology and Cardiovascular Medicine, business
Abstract

A case of primary pulmonary hypertension of a 30-year-old female was reported. The onset of symptoms was noticed 2 months after the second delivery. The patient died one year later thereafter. Autopsy findings did not reveal any definite gross anatomical evidence to cause pulmonary hypertension. Histological examination demonstrated concentric and eccentric thickening of the intima of pulmonary arteries and arterioles, stenosis and obliterative lesions in smaller arteries and arterioles, and hematoxylin-stained bodies in these vessels. The etiology of primary pulmonary hypertension was discussed, especially in regard to the role of the reproducing period of female.

Published
1968
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