Biomaterial Database

[Changes in the nucleoli of epithelial cells of the kidney tubules in mercuric chloride-induced experimental kidney tubular necrosis]. 1991

V P Andreev

Electron-microscopic studies of epithelial cells of uric tubules in white rat kidneys after i.m. injections of mercury dichloride (0.4 mg/100 of body weight) given every 24, 48 and 72 hours showed the affected epithelial cells to have nonspecific changes in tubule ultrastructure, i.e. dissociation and segregation of tubule components as well as degranulation, fragmentation and hypertrophy. The dissociation of nucleolus components is followed by the damage of an essential part of cell mitochondrial apparatus and becomes irreversible. In some damaged cells degranulation is accompanied by the nucleolus decay into separate solid fragments formed of fibrous tissue. The enlargement of nucleolus fragments in the absence of proribosomes speaks in favour of the depression of proribosome formation process while the ability to synthesize p-RNA in comparatively slight.

UI	MeSH Term	Description	Entries
D007683	Kidney Tubular Necrosis, Acute	Acute kidney failure resulting from destruction of EPITHELIAL CELLS of the KIDNEY TUBULES. It is commonly attributed to exposure to toxic agents or renal ISCHEMIA following severe TRAUMA.	Lower Nephron Nephrosis,Acute Kidney Tubular Necrosis,Lower Nephron Nephroses,Nephron Nephroses, Lower,Nephron Nephrosis, Lower,Nephroses, Lower Nephron,Nephrosis, Lower Nephron
D007687	Kidney Tubules, Proximal	The renal tubule portion that extends from the BOWMAN CAPSULE in the KIDNEY CORTEX into the KIDNEY MEDULLA. The proximal tubule consists of a convoluted proximal segment in the cortex, and a distal straight segment descending into the medulla where it forms the U-shaped LOOP OF HENLE.	Proximal Kidney Tubule,Proximal Renal Tubule,Kidney Tubule, Proximal,Proximal Kidney Tubules,Proximal Renal Tubules,Renal Tubule, Proximal,Renal Tubules, Proximal,Tubule, Proximal Kidney,Tubule, Proximal Renal,Tubules, Proximal Kidney,Tubules, Proximal Renal
D008297	Male		Males
D008627	Mercuric Chloride	Mercury chloride (HgCl2). A highly toxic compound that volatizes slightly at ordinary temperature and appreciably at 100 degrees C. It is corrosive to mucous membranes and used as a topical antiseptic and disinfectant.	Mercury Dichloride,Corrosive Sublimate,HgCl2,Mercuric Perchloride,Mercury Bichloride,Mercury Perchloride,Sublimate,Bichloride, Mercury,Chloride, Mercuric,Dichloride, Mercury,Perchloride, Mercuric,Perchloride, Mercury,Sublimate, Corrosive
D008854	Microscopy, Electron	Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.	Electron Microscopy
D002467	Cell Nucleus	Within a eukaryotic cell, a membrane-limited body which contains chromosomes and one or more nucleoli (CELL NUCLEOLUS). The nuclear membrane consists of a double unit-type membrane which is perforated by a number of pores; the outermost membrane is continuous with the ENDOPLASMIC RETICULUM. A cell may contain more than one nucleus. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed)	Cell Nuclei,Nuclei, Cell,Nucleus, Cell
D004195	Disease Models, Animal	Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases.	Animal Disease Model,Animal Disease Models,Disease Model, Animal
D004848	Epithelium	The layers of EPITHELIAL CELLS which cover the inner and outer surfaces of the cutaneous, mucus, and serous tissues and glands of the body.	Mesothelium,Epithelial Tissue,Mesothelial Tissue,Epithelial Tissues,Mesothelial Tissues,Tissue, Epithelial,Tissue, Mesothelial,Tissues, Epithelial,Tissues, Mesothelial
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D051381	Rats	The common name for the genus Rattus.	Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus