To investigate the antibacterial functionality of natural colorant extracts, five kinds of natural dying aqueous solutions were obtained by extraction from peony, pomegranate, clove, Coptis chinensis and gallnut using water at 90 °C for 90 min with a liquor ratio (solid natural colorant material/water, weight ratio) of 1:10. The colorimetric assay and antibacterial activity of cotton, silk, and...

Natural dyes are widely used in the coloring of food, leather and wood [1]. Traditionally they were the only colorants for textile fibers like wool, silk, cotton and flax. Their use in textiles declined drastically with the introduction of synthetic dyes in 1856 [2-6]. Presently the use of synthetic dyes is estimated at around 10,000,000 tons per annum [7-11]. The manufacture and use of this la...

A 56-year-old man was referred to our hospital about 48 h after sudden onset of painless central visual loss in his right eye (OD) on a winter morning. He had a more than 25-year history of systemic hypertension and smoking. Funduscopic observation showed striated retinal whitening in the macular region, faint cotton-wool patches around the optic disc, and segmental narrowing of the retinal art...

Plain, buffered cotton-wool swabs and albumen-coated cotton-wool swabs were prepared with known numbers of the following: Haemophilus influenzae, Streptococcus pneumoniae, Staphylococcus aureus, corynebacteria and Escherichia coli. Swabs were plated immediately (0 hours) after loading with a 0.1 ml standardised inoculum; each swab was plated out four times by streaking on both halves of two pla...

BACKGROUND The purpose of this preliminary study was to assess the in vivo performance of synthetic, cotton wool-like nanocomposites consisting of a biodegradable poly(lactide-co-glycolide) fibrous matrix and containing either calcium phosphate nanoparticles (PLGA/CaP 60:40) or silver doped CaP nanoparticles (PLGA/Ag-CaP 60:40). Besides its extraordinary in vitro bioactivity the latter biomater...

PURPOSE The purpose of this study is to assess indocyanine green angiographic findings in patients with nonfamilial amyloidosis. METHODS The method used was a prospective study including seven patients (14 eyes) with nonfamilial amyloidosis. All patients underwent detailed ophthalmic clinical examination, fundus photography, and indocyanine green angiography (ICGA). Fluorescein angiography (F...

Interferon (INF)-associated retinopathy occurs in 15-64% of INF-treated patients, transforming this complication into a significant risk for visual impairment. This retinopathy has been described as an ocular complication with a variable clinical course, usually benign and asymptomatic. The most common findings are hemorrhages and cotton wool spots. Atypical ocular side effects include branch o...

DIABETES MELLITUS AFFECTS 200 million people worldwide, including 20 million in the United States alone. Diabetic retinopathy (DR), a specific microvascular complication of diabetes, is the leading cause of blindness in working-aged persons in the United States. The prevalence of DR increases with duration of diabetes, and nearly all persons with type 1 diabetes and more than 60% of those with ...

PURPOSE To call attention to a malignant course of ocular ischemic syndrome in patients with giant cell arteritis (GCA). METHODS/PATIENT: A 84-year-old woman developed severe headache for about 3 (1/2) months prior to myocardial infarction and visual disturbances. RESULTS An anterior ischemic optic neuropathy (AION) in the right eye with a distinct reduction in visual acuity was found. The re...

The most important disease that cause vessels structure to change is diabetic retinopathy. When the pancreas does not secrete enough amount of insulin diabetic retinopathy occurs. The symptoms of diabetic retinopathy include cotton wool spots, hemorrhages, hard exudates and dilated retinal veins. There are advance care of diabetic is present but still vision loss is also present. The risk of vi...