Of all substances which bulk large in the chemical composition of cellular structures, desoxypentose nucleic acid is perhaps the most clearly demonstrable by application of cytochemical methods to cells. For each one of the three components of nucleotide residues there is a specific method which -enables the cytologist to visualize it on slides: the purines and pyrimidines have natural specific...

BACKGROUND Viola odorata L. belongs to Violaceae family and is native to Iran. It is used in the form of Almond-Violet oil in traditional Persian medicine (TPM) since ancient times. Almond-Violet oil was used for the treatment of insomnia, headache, cough, and fever based on TPM textbooks. There are two methods for the preparation of Almond-Violet oil. The first is macerating voila flowers in s...

METHODS. Groups of rats were euthanatized at 1 day, 1 or 2 weeks, or 1 or 2 months after intravitreal injection of TNF. Morphometric analyses of neurofilamentor Thy-1-positive cells, retinal ganglion cells (flat preparations stained with cresyl violet or retrograde labeling with a neurotracer), the number of axons, immunostaining for myelin basic protein, and TUNEL assays were performed. Levels...

The patient was a 56-year-old female. whole body has brown patches for 16 years. Dermatological examination: were observed on the trunk and lower limbs, with scattered hypomigmentation symmetrical distribution of skin lesions. Histopathology showed mild hyperkeratosis in epidermis, focal liquefaction degeneration basal layer, masses light red stained material dermal papilla, or small lymphocyte...

In this research, a response surface methodology (RSM) was used to investigate the effects of independent parameters (pH, contact time, temperature, adsorbent dosage, and initial concentration of pollutant), their simultaneous interactions, and quadratic effects on crystal violet adsorption onto two starch based materials in the form of batch experiments. The characterizing results indicated th...

Organic colourants have important applications in many fields. Their photostability is an characteristic. Several methods to study photodegradation were compared this work. Eosin Y (C.I. Generic name: Acid Red 87, EY) and crystal violet Name: Basic Violet 3, CV) used as test compounds, both solution dyed on silk. Commonly applied included, viz. Xenotest, Microfading-Tester, light-box (Spectroli...

Biofilms are recognised as an important contributor to bacterial resistance towards traditional antimicrobial treatments. Assessment of biofilm formation currently relies on a 96 well microtitre plate assay, which usually involves the colourimetric detection of stain (typically crystal violet) removed from previously stained biofilm. The amount of crystal violet released is then used as a quant...