SUMMARY A 24 hour urinary calcium was measured in 21 healthy women and 32 healthy men. There were 20 evaluated once, 30 twice, and in 3 cases, urine collections were repeated 3 times. Oral calcium intake and urinary creatinine over 24 hours were also measured. The mean urine calcium in women was 126 mg/24 h and the range was 45-225, in men the values were 171 and 65-246. Oral daily calcium in...

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...

Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder characterized by the progressive loss of motor neurons leading to paralysis and death. Mutations of the human Cu/Zn superoxide dismutase (SOD1) are found in some cases of familial ALS (fALS). Recent evidences suggest the accumulation of intracellular calcium is one of the primary mechanisms of motor neuronal degeneration. In th...

Research in plant disease management focuses on developing safe methods for humans and the environment in order to prevent the entry of harmful chemicals in food. Simple inorganic salts have low cost and are safe enough to be used as pesticides. Phytophthora genus causes crown and root rot (gummosis) in crops and leads to great losses in some pistachio (Pistacia vera L.) produ...

In this study, involvement ofvoltage-dependent calcium channels in LTP of responses of rat visual cortex slices was analyzed. Field potentials including EPSP1 and EPSP2 from layers II/III were recorded through stimulation of layer IV. Whereas nifedipine, a L-type calcium channel blocker (L-VDCC), did not considerably affect the LTP of responses, but Ni2+, a relatively selective blocker of T-typ...

Calcium carbonate is a versatile mineral with diverse industrial applications. Drying is a necessary processing step in preparation of calcium carbonate product. Deep knowledge of drying kinetics is required in order to design an appropriate dryer. The main aim of the present study was to investigate the drying kinetics of calcium carbonate, experimentally. Thirteen empirical correlations with ...

How are calcium levels increased within cells? Increases in intracellular calcium arise through either calcium influx across the plasma membrane or release from intracellular calcium stores, which is usually either the endoplasmic reticulum (ER) or, in muscle, the sarcoplasmic reticulum (SR). Release of calcium from the ER/SR is activated by a variety of second messengers, such as inositol 1,4,...

Calcium is the most abundant mineral in the body. Bones and teeth contain approx. 99% of calcium. Calcium exists in both plant and animal foods. The best source of calcium is milk. Indian Council of Medical Research (ICMR) recommends 600-800 mg/day of calcium which increases to 1200 mg/day in pregnant and lactating mothers. Inadequate calcium intake for longer duration is responsible for osteop...

Calcium dichloride tetra urea was prepared by the reaction of calcium chloride with urea in aqueous solution. The crystals are monoclinic, a= 7.633, b= 12.45 1, c= 8.118 ?,? = 113.17, Z = 4, space group P 2,/a. The crystal structure was determined by single crystal X-ray methods and refined to R= 0.041. The calcium atoms are coordinated to four oxygen atoms of urea and to two chloride ions....

the whole plant of biophytum petersianum was extracted with a mixture of water – alcohol (1:1) to evaluate its relaxant effect on aorta rings. in isolated wistar rat tissue, the hydro-ethanolic extract (0.1; 0.25 and 0.5 mg/ml) non-competitively antagonized calcium chloride and high-k + - induced aorta contractions in a concentration-dependent manner. moreover, the inhibition of noradrenaline–i...