منابع مشابه
Human Senile Cataractous Lens Protease
A proteolytic enzyme was isolated from human senile cataractous lens by anion-exchange and gel-filtration chromatography. Sedimentation and zoneelectrophoretic experiments indicated a high degree of homogeneity for the enzyme. A molecular weight of 27000 was calculated from measurements of sedimentation velocity and diffusion coefficient. Chelating agents decreased activity which could be resto...
متن کاملThe New Method of Extraction of Cataractous Lenses
sets up irritation and causes increased tension and degenerative changes, with the result that not only the eyesight is completely lost, but in a number of cases the patient suffers from excruciating pain on account of increased tension, septi infection, or iritis, etc. Although this operation had its day it was eventually discarded, with the advent of the European system of surgery. It pains o...
متن کاملSingle flash electroretinograms of mature cataractous and fellow eyes
BACKGROUND It is generally stated that opacities of the ocular media, including senile cataract, have little effect on the electrical responses of the retina. However, lower amplitudes and longer implicit times are sometimes observed in electroretinograms (ERGs) of patients with mature cataract. METHODS Single flash ERGs of mature cataractous eyes with decimal visual acuity less than 0.1 were...
متن کاملDiscrepant expression of microRNAs in transparent and cataractous human lenses.
PURPOSE Age-related cataracts are considered to be a pathological condition that arise as senescence progresses. However, little is known about the function of microRNAs (miRNAs) in the formation of age-related cataracts. The purpose of this study was to identify possible differences in miRNA expression in the central epithelium of transparent and age-related cataractous human lenses. METHODS...
متن کاملFree and bound water in normal and cataractous human lenses.
PURPOSE To analyze free and total water in human normal and cataractous lenses. METHODS Thermogravimetric analysis was used to determine total water, and differential scanning calorimetry was used for free water. RESULTS In normal human lenses, the total water content of the nucleus remained unchanged with age, but the state of the water altered. The ratio of free to bound water increased s...
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ژورنال
عنوان ژورنال: JAMA: The Journal of the American Medical Association
سال: 1904
ISSN: 0098-7484
DOI: 10.1001/jama.1904.02500040043020