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In Vitro Solubility and In Vivo Toxicity of Indium Phosphide
Author(s) -
Kabe Isamu,
Omae Kazuyuki,
Nakashima Hiroshi,
Nomiyama Tetsuo,
Uemura Takamoto,
Hosoda Kanae,
Ishizuka Chizuru,
Yamazaki Kazuto,
Sakurai Haruhiko
Publication year - 1996
Publication title -
journal of occupational health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.664
H-Index - 59
ISSN - 1348-9585
DOI - 10.1539/joh.38.6
Subject(s) - spleen , in vivo , toxicity , in vitro , chemistry , inhalation , lung , pharmacology , medicine , immunology , andrology , pathology , biology , biochemistry , anesthesia , microbiology and biotechnology
In Vitro Solubility and In Vivo Toxicity of Indium Phosphide: Isamu Kabe et al. Department of Preventive Medicine and Public Health, School of Medicine, Keio University —This study was designed to clarify the in vitro solubility and the in vivo basic toxicity of indium phosphide (InP). InP powder was clearly soluble in synthetic gastric fluid and quite insoluble in saline or synthetic lung fluid. Male ICR mice (SPF grade) were given InP at the doses of 0, 1,000, 3,000, and 5,000 mg/kg, intraperitoneally (i. p.) or orally (p. o.). During a 2‐week observation, no mice died. In i. p. treated mice, the serum indium concentration showed a dose‐dependent increase, and indium mainly accumulated in the lungs and liver. Dose‐dependent increases in lung and spleen weight were observed. Black granules of InP were deposited in the lymph nodes, spleen, lungs, and liver. Extramedullary granulopoiesis was observed. And eosinophilic exudates and mononuclear cells were seen in the pulmonary alveoli. Considering these findings, InP particles were presumably transferred to the spleen, liver, and lungs by way of lym‐ phokinetics, causing reticuloendothelial responses. Hematological examination showed increased proportions of stab cells and monocytes in 5000 mg/kg i.p. dosed mice. The p. o. administered mice showed no clear relationship between the dose and biological effects.

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