Backgrounds and Aims: The purpose of this study was to examine the effects of potassium, sodium and zinc metal ions on ammonium sulfate fraction of acid phosphatase activity of orange fruit. Materials and Methods: Acid phosphatase was extracted and purified from orange fruit and then various samples as well as a control sample were prepared in vitro. In addition to substrates, ions of potass...

The main role of cumulus cells (CC) is to provide nutritious materials for developing oocytes. Follicular fluid (FF) contains the enzyme acid phosphatase, which plays a role in ovulation and fertilization of oocyte. The objective of this prospective study was to evaluate the levels of acid phosphatase in FF and the rate of apoptosis in CC of fertilized and unfertilized oocytes in intracytoplasm...

Background: Heavy metals such as cadmium (Cd2+) are natural components of the Earth's crust which can not be degraded or destroyed. Industrial, mining and agricultural activities, particularly the excessive use of phosphate fertilizers, have led to high levels of cadmium contamination at many locations worldwide. Some toxic effects of cadmium are due to its inhibition of various enzyme sys...

Hospital infections (HI) are a serious public health problem in many countries. Several studies have identified strains correlating to surgical site infections, with multi-resistance. The goals of this study was quantify, identify and verify the resistance profile microorganisms collected at two hospitals settings, alert professionals how environmental contamination can influence hospital infec...

background: zinc is an essential trace element required for the functional activity of several enzyme systems. several studies have been carried out to assess the effect of zinc supplementation on children’s growth, but controversy exists as to the effect of zinc on growth and gh-igf-i system. objective:  the aim of this study was to evaluate the effect of zinc supplementation on linear growth ...

phosphorus (p) is one of the most vital elements for all living organisms which acts as aconstituent of essential biomolecules such as nucleic acids, phospholipids, and phosphosugars,and as a major contributor to almost all metabolic reactions including photosynthesis,respiration, and energy delivery. it is one of the most needed nutrients for plant growth anddevelopment. despite high levels of...

the main role of cumulus cells (cc) is to provide nutritious materials for developing oocytes. follicular fluid (ff) contains the enzyme acid phosphatase, which plays a role in ovulation and fertilization of oocyte. the objective of this prospective study was to evaluate the levels of acid phosphatase in ff and the rate of apoptosis in cc of fertilized and unfertilized oocytes in intracytoplasm...

effects of gibberellic acid (ga) and abscisic acid (aba) on dormant and after-ripened wheat seed, cultivar rl4137, were studied. the aim of the study was to evaluate the effects of seed after-ripening in comparison with gibberellin application on breaking of seed dormancy. moreover, the effect of abscisic acid on dormancy induction was also evaluated. acid and alkaline posphatase activity of se...

background: the hepatic secretion of apolipoprotein b (apob), containing lipoproteins, is known to be regulated by insulin, and the overproduction of these atherogenic lipoproteins occurs in insulin-resistant states. protein tyrosine phosphatase 1b (ptp-1b) is a key regulator of hepatic insulin signaling and is also upregulated in insulin resistance. we aimed to investigate the role of ptp-1b i...