background: the role of renin angiotensin system (ras) in ischemic/reperfusion (i/r) injuries is not fully elucidated. furthermore, it is not clear whether inhibition of ras by angiotensin-converting enzyme (ace) inhibitors has beneficial effects in terms of protecting the brain from i/r injuries. in this study enalapril is used as an ace inhibitor to evaluate the role of ras in i/r injuries in...

This research is the first to evaluate brittle wort (Chara corallina) extract for phytochemical content and inhibitory effects against a-glucosidase a-amylase activities. An ethanolic of C. corallina had strongest enzyme effect. The inhibition efficiencies all extracts were more potent than those a-glucosidase, with IC50 values 8.43±0.18 mg/mL 1.78±0.07 a-amylase. Inhibition efficiency was rela...

 Introduction: It has been shown that the extract of Elaeagnus angustifolia can inhibit inflammation and pain induced by formalin in mice and rats. The aim of the present study is to reach evaluations of possible cellular and molecular mechanisms of Elaeagnus angustifolia extract in reducing pain and inflammation through examining the extract ability for inhibition of cyclooxygenase (Cox) type ...

the effect of annona squamosa, lawsonia inermis and their combination with other herbal molluscicides were studied on different enzyme activity in the nervous tissue of lymnaea acuminata. twenty-four hour in vivo exposure to 40% and 80% of 24 h lc50 of plant derived molluscicides and their combination with other molluscicides such as cedrus deodara, azadirachta indica oil, allium sativum, polia...

Inhibition of maltase, sucrase, isomaltase and glucoamylase activity by acarbose, epigallocatechin gallate, epicatechin gallate four polyphenol-rich tea extract from white, green, oolong, black tea, were investigated using rat intestinal enzymes human Caco-2 cells. Regarding enzyme mixture, all extracts very effective in inhibiting maltase activity, but only white inhibited sucrase the inhibiti...

The dihydroneopterin aldolase (DHNA, EC 4.1.2.25) activity of FolB protein is required for the conversion 7,8-dihydroneopterin (DHNP) to 6-hydroxymethyl-7,8-dihydropterin (HP) and glycolaldehyde (GA) in folate pathway. from Mycobacterium tuberculosis (MtFolB) essential bacilli survival represents an important molecular target drug development. S8-functionalized 8-mercaptoguanine derivatives wer...

The present research aimed to investigate the phytochemical bioactive constituents and proximate composition of methanol extract Kigelia africana Annona senegalensis stem bark, as well its in vitro antidiabetic potential. results suggest that presence compounds may be responsible for numerous medicinal capacities these plants, including their abilities. bark extracts K. A. demonstrated strong α...

The tyrosine kinase inhibitor sorafenib (SOR) is being used increasingly in combination with other anticancer agents like paclitaxel, but this increases the potential for drug toxicity. SOR inhibits several human CYPs, including CYP2C8, which a major enzyme elimination of oncology drugs paclitaxel and imatinib. It has been reported that CYP2C8 inhibition by liver microsomes potentiated NADPH-de...

We review information on the renal response to converting enzyme inhibition, and attempt to evaluate the evidence that a reduction in angiotensin II formation is responsible for the renal response. There is little response to converting enzyme inhibitors in animals or man when the renin-angiotensin system is suppressed by a literal sodium intake. With restriction of sodium intake, an increase i...

It is widely accepted that urea and guanidine act as protein denaturants by breaking intramolecular hydrogen bonds (1). Loss of catalytic activity in the presence of urea is thought to occur by elimination of bonds contributing to the tertiary structure of enzyme molecules. Subsequent restoration of structural and catalytic properties by removal of the denaturant, “reversible denaturation,” is ...