Biomaterial Database

Anterior polar cataract and lysosomal alterations in the lens of rats treated with the amphiphilic lipidosis-inducing drugs chloroquine and chlorphentermine. 1978

D Drenckhahn

Chronic treatment of rats with the amphipilic drugs chloroquine and chlorphentermine caused prominent anterior polar cataracts in virtually all rats. The basic pathologic changes underlying these cataracts were: (a) degeneration of anterior polar and sutural endings of cortical lens cells and (b) multilayered proliferation and invasion of epithelial cells into the anterior polar cortex. Ultrastructurally cortical lens cells displayed various patterns of degeneration, finally undergoing complete liquification. Liquified lens substance was phagocytosed by invading epithelial cells. Cortical lens cells and epithelial cells contained numerous lipidosis-like (lamellated) inclusions, which possessed cytochemical acid phosphatase activity. The present drug-induced lenticular alterations are interpreted as the direct or indirect consequences of a drug-induced disturbance of polar lipid metabolism in the lens.

UI	MeSH Term	Description	Entries
D007908	Lens, Crystalline	A transparent, biconvex structure of the EYE, enclosed in a capsule and situated behind the IRIS and in front of the vitreous humor (VITREOUS BODY). It is slightly overlapped at its margin by the ciliary processes. Adaptation by the CILIARY BODY is crucial for OCULAR ACCOMMODATION.	Eye Lens,Lens, Eye,Crystalline Lens
D008064	Lipidoses	Conditions characterized by abnormal lipid deposition due to disturbance in lipid metabolism, such as hereditary diseases involving lysosomal enzymes required for lipid breakdown. They are classified either by the enzyme defect or by the type of lipid involved.	Lipidosis,Lipoidosis
D008247	Lysosomes	A class of morphologically heterogeneous cytoplasmic particles in animal and plant tissues characterized by their content of hydrolytic enzymes and the structure-linked latency of these enzymes. The intracellular functions of lysosomes depend on their lytic potential. The single unit membrane of the lysosome acts as a barrier between the enzymes enclosed in the lysosome and the external substrate. The activity of the enzymes contained in lysosomes is limited or nil unless the vesicle in which they are enclosed is ruptured or undergoes MEMBRANE FUSION. (From Rieger et al., Glossary of Genetics: Classical and Molecular, 5th ed).	Autolysosome,Autolysosomes,Lysosome
D008297	Male		Males
D010587	Phagocytosis	The engulfing and degradation of microorganisms; other cells that are dead, dying, or pathogenic; and foreign particles by phagocytic cells (PHAGOCYTES).	Phagocytoses
D010645	Phentermine	A central nervous system stimulant and sympathomimetic with actions and uses similar to those of DEXTROAMPHETAMINE. It has been used most frequently in the treatment of obesity.	Adipex-P,Duromine,Ionamine,Phentermine Hydrochloride,Adipex P,AdipexP,Hydrochloride, Phentermine
D002386	Cataract	Partial or complete opacity on or in the lens or capsule of one or both eyes, impairing vision or causing blindness. The many kinds of cataract are classified by their morphology (size, shape, location) or etiology (cause and time of occurrence). (Dorland, 27th ed)	Cataract, Membranous,Lens Opacities,Pseudoaphakia,Cataracts,Cataracts, Membranous,Lens Opacity,Membranous Cataract,Membranous Cataracts,Opacities, Lens,Opacity, Lens,Pseudoaphakias
D002479	Inclusion Bodies	A generic term for any circumscribed mass of foreign (e.g., lead or viruses) or metabolically inactive materials (e.g., ceroid or MALLORY BODIES), within the cytoplasm or nucleus of a cell. Inclusion bodies are in cells infected with certain filtrable viruses, observed especially in nerve, epithelial, or endothelial cells. (Stedman, 25th ed)	Cellular Inclusions,Cytoplasmic Inclusions,Bodies, Inclusion,Body, Inclusion,Cellular Inclusion,Cytoplasmic Inclusion,Inclusion Body,Inclusion, Cellular,Inclusion, Cytoplasmic,Inclusions, Cellular,Inclusions, Cytoplasmic
D002738	Chloroquine	The prototypical antimalarial agent with a mechanism that is not well understood. It has also been used to treat rheumatoid arthritis, systemic lupus erythematosus, and in the systemic therapy of amebic liver abscesses.	Aralen,Arechine,Arequin,Chingamin,Chlorochin,Chloroquine Sulfate,Chloroquine Sulphate,Khingamin,Nivaquine,Sulfate, Chloroquine,Sulphate, Chloroquine
D002745	Chlorphentermine	A sympathomimetic agent that was formerly used as an anorectic. It has properties similar to those of DEXTROAMPHETAMINE. It has been implicated in lipid storage disorders and pulmonary hypertension. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1223)	Avipron,Chlorphentermine Hydrochloride,Desopimon,Pre-Sate,Hydrochloride, Chlorphentermine