introduction: enterococcus faecalis ( e. faecalis ) has the ability to invade the dentinal tubules and resist high ph levels. as a result, calcium hydroxide (ch) is not much effective on this bacterium. in theory, nanoparticle calcium hydroxide (nch) has smaller size and high surface area that enables it to penetrate into the deeper layers of dentin and be more effective on e. faecalis. this in...

introduction: direct pulp capping (dpc) is coverage of exposed pulp by a biocompatible material after traumatic or carious exposure. the purpose of this procedure is to seal against bacterial leakage, stimulate dentinal barrier formation, and maintain the vitality of pulp. several factors contribute to the consequence of this treatment such as material and the procedural technique. the aim of t...

abstract a previous study on agricultural drains in khuzestan province of iran has indicated that carbonate calcium is the main component of the deposited salts in drainage envelops. to investigate the process of precipitation of carbonate calcium under different conditions including chemical, bio-chemical, aerobic and an-aerobic, a through laboratory investigation on geotextile drain envelop w...

although salivary alkaline phosphatase (alp) can balance de- and remineralization processes of enamel, there is no evidence regarding its effects on the concentrations of calcium and phosphate in saliva. the present study aims to determine the relationship between salivary alp activity and the concentrations of calcium and phosphate in saliva. in this cross-sectional study, we evaluated salivar...

abstract: introduction & objective: there are different methods for improving hypercholesterolemia, insulin resistance and hypertriglyceridemia, the major risk factors of cardio-vascular disease. calcium, a nutrient essential for many vital functions of the body is now receiving much attention for its possible hypolipidemic effects. the large bodies of studies on the effects of calcium on the s...

Glutamate induces excitotoxic damage to hippocampal pyramidal neurons in Status Epilepticus (SE) and epilepsy. In this study, we investigated time course of dysregulation of calcium homeostasis at various intervals after an episode of SE in acutely isolated CA1hippocampal pyramidal. For this purpose, male Sprague-Dawley rats (200 g) were subjected to pilocarpine-induced SE. The SE was blocked a...

Background: Parthenogenetic activation of mammalian oocytes using artificial stimuli is commonly used in various reproductive bio-techniques. Calcium ionophore is known to elevate intracellular calcium levels in the cytoplasm of oocytes through the influx of calcium from extracellular spaces. Ethanol promotes a single intracellular Ca2+ increase of greater and longer amplitude than the initial ...

to evaluate the effects of calcium on motility patterns of bovine epididymal sperm and to determine the effective calcium concentration, ovine testicles (5 for each experiment day) were picked up in a local slaughterhouse and transported to the laboratory in a cool container (filled wich ice).in laboratory,caudal epididymis was incised and sperm cells were put into petri dishes containing modif...

results the mean levels of serum calcium, serum zinc, cerebrospinal fluid calcium and cerebrospinal fluid zinc were 14.51 ± 3.69 mg/dl; 184.04 ± 65.49 µg/dl; 5.23 ± 2.21 mg/dl and 87.06 ± 28.25 µg/dl respectively. conclusions we did not find any clear abnormality in plasma or cerebrospinal fluid calcium and zinc levels in children with febrile seizures in our patient population. patients and me...

Fishbone is one of industrial waste that can be used as a calcium source. This study aims to find out the use catfish bone flour source in dried noodles, its effects on physicochemical and sensory evaluation contribution calcium-enriched noodles Indonesian Recommended Dietary Allowance (RDA) calcium. The properties (moisture, ash, protein, fat, carbohydrate, calcium, phosphor, water absorption,...