Calcium (Ca) is a significant element that acts as an intracellular second messenger. It is necessary for many physiological processes in spermatozoa including spermatogenesis, sperm motility, capacitation, acrosome reaction and fertilization. Although influences of Calcium deficiency on sperm function and male infertility have been widely studied, mechanisms for these abnormalities are not wel...

many patients with thyrotoxicosis develop hypercalciuria and nypercalcemia. urine calcium excretion depends on diet, latitude and sunshine exposure. with regard to variation of these indices in different geographical regions, we conducted a one-year study on 202 patients, 65 males and 137 females, with thyrotoxicosis of varying severity. the mean age of patients was 35.24±11.95 and 35.87±12.21 ...

To investigate the influence of salinity and calcium (Ca) on some properties of Plantago ovata, a pot factorialexperiment based on randomized complete block design with three replicates was conducted in Jiroft, south of KermanProvince, Iran. Three salinity levels of 0, 100 and 200 mM NaCl and Ca levels of 0, 5 and 10 mM Calcium nitrate wereapplied as the first and second factors, respectively. ...

Calcium is one of the most limiting factors for growth and reproduction peanut, which ultimately affects pod seed yields. A two-year field experiment was carried out to assess impact five calcium applications, including nano-calcium conventional forms, on growth, leaf nutrient content, yield traits, quality parameters three diverse peanut cultivars (Ismailia-1, Giza-5, Giza-6). The applied appl...

BACKGROUND There is uncertainty about the calcium requirement with particular respect to age and sex differences and the calculation of skin calcium losses. OBJECTIVE We calculated the calcium requirement of adult men from a homogenous set of calcium balances and a robust estimate of calcium loss through the skin. DESIGN We reviewed available high-quality published calcium balances in men a...

This study was conducted to evaluate the potential use of milk mineral (MM) as calcium source for production calcium-fortified yogurt. MM composed 83% minerals, 7.5% lactose, 3.3% protein, and < 1% fat. Calcium (Ca) content in about 46%; calcium: phosphorous ratio 1.28:1. The aqueous solubility Ca increased with decrease pH; at pH 4 5 98% 53%, respectively. Ca-fortified yogurt up 200 mg Ca/1...

Calcium-bound phosphoryl oligosaccharides (POs-Ca) were prepared from potato starch. Their solubility and in situ absorbability as a calcium source were investigated by comparing with the soluble calcium compounds, calcium chloride and calcium lactate, or insoluble calcium compounds, calcium carbonate and dibasic calcium phosphate. The solubility of POs-Ca was as high as that of calcium chlorid...

Previous animal and human studies have shown protective effects of Ca on the resistance to enteropathogenic infections. Most interventions were performed with calcium phosphate and little is known about the protective effect of other dietary sources of Ca. Therefore, we investigated the efficacy of several Ca salts to enhance intestinal resistance to Salmonella enteritidis infection. Rats (n 7-...

 Background: Calcium (Ca+2) plays an important role in many biophysiological mechanisms .The present study was carried out to assess alterations in total serum calcium level before and after operations in consider to the type of anesthesia. Materials and Methods: This descriptive study was conducted on 74 women who candidate for gynecological abdominal operations during one year at Al-z...