Ahmad Reza Dehpour

[ 1 ] - Pantoprazole, a proton pump inhibitor, increases orthodontic tooth movement in rats

Objective(s):Pantoprazole, is a proton pump inhibitor (PPI) prescribed for the treatment of upper gastrointestinal disorders, which in high doses has been suggested to decrease calcium absorption leading to hypocalcaemia and therefore osteoporosis. The aim of this study was to assess whether pantoprazol, could alter the rate of orthodontic tooth movement (OTM) in rats. Materials and Methods: A ...

[ 2 ] - New Aspects of Silibinin Stereoisomers and their 3-O-galloyl Derivatives on Cytotoxicity and Ceramide Metabolism in Hep G2 hepatocarcinoma Cell Line

Ceramide as a second messenger is a key regulator in apoptosis and cytotoxicity. Ceramide-metabolizing enzymes are ideal target in cancer chemo-preventive studies. Neutral sphingomyelinase (NSMase), acid ceramidase (ACDase) and glucosyl ceramide synthase (GCS) are the main enzymes in ceramide metabolism. Silymarin flavonolignans are potent apoptosis inducers and silibinin is the most active com...

[ 3 ] - The neuroprotective effect of lithium in cannabinoid dependence is mediated through modulation of cyclic AMP, ERK1/2 and GSK-3β phosphorylation in cerebellar granular neurons of rat

Lithium (Li), a glycogen synthase kinase-3β (GSK-3β) inhibitor, has used to attenuate thecannabinoid-induced dependence/withdrawal signs, but molecular mechanisms related to this areunclear. Recent studies indicate the involvement of upstream extracellular signal kinase1/2 (ERK1/2)and downstream GSK-3β pathways in the development of cannabinoid-induced dependence. Thisis mediated through cannab...

[ 4 ] - The protective effect of nano-curcumin in experimental model of acute pancreatitis: The involvement of TLR4/NF-kB pathway

Objective(s): The objective of the present study is to explore whether Nanocurcumin improves pancreatic inflammation through the inhibition of the TLR4/NFkB signaling pathway in cerulein-induced acute pancreatitis. Methods: Acute pancreatitis was induced by five intraperitoneal (i.p.) injection of cerulein (50 μg/kg) with 1h intervals. Vehicle and nanocurcumin (100mg/kg/day) were given to the a...

[ 5 ] - New Aspects of Silibinin Stereoisomers and their 3-O-galloyl Derivatives on Cytotoxicity and Ceramide Metabolism in Hep G2 hepatocarcinoma Cell Line

Ceramide as a second messenger is a key regulator in apoptosis and cytotoxicity. Ceramide-metabolizing enzymes are ideal target in cancer chemo-preventive studies. Neutral sphingomyelinase (NSMase), acid ceramidase (ACDase) and glucosyl ceramide synthase (GCS) are the main enzymes in ceramide metabolism. Silymarin flavonolignans are potent apoptosis inducers and silibinin is the most active com...

[ 6 ] - The neuroprotective effect of lithium in cannabinoid dependence is mediated through modulation of cyclic AMP, ERK1/2 and GSK-3β phosphorylation in cerebellar granular neurons of rat

Lithium (Li), a glycogen synthase kinase-3β (GSK-3β) inhibitor, has used to attenuate thecannabinoid-induced dependence/withdrawal signs, but molecular mechanisms related to this areunclear. Recent studies indicate the involvement of upstream extracellular signal kinase1/2 (ERK1/2)and downstream GSK-3β pathways in the development of cannabinoid-induced dependence. Thisis mediated through cannab...

[ 7 ] - بررسی نقش حفاظتی کوئرستین در موش‌های صحرایی مبتلا به سیروز صفراوی

Background: Biliary cirrhosis is a chronic disease marked by the progressive destruct-tion of liver. There is no known cure for this disease however, medications may slow its progression. The present study was designed to investigate the effect of quercetin as a plant derived flavonoid on the hepatic injury reduction of biliary cirrhotic rats.Methods: Thirty male Sprague-Dawley rats aged 6-7 mo...

[ 8 ] - Thalidomide attenuates the hyporesponsiveness of isolated atria to chronotropic stimulation in BDL rats: The involvement of TNF-α, IL-6 inhibition, and SOCS1 activation

Objective(s): Cirrhotic cardiomyopathy is a complication of uncured cirrhosis which is associated with hyporesponsiveness of the heart to sympathetic stimulation. The enhancement of portal pressure, nitric oxide (NO) level, pro-inflammatory mediators and down-regulation of Suppressor of Cytokine Signaling 1 (SOCS1) are involved in this situations. The present study see...

[ 9 ] - Neuroprotective and Anti-inflammatory Role of Atorvastatin and Its Interaction with Nitric Oxide (NO) in Chronic Constriction Injury-induced Neuropathic Pain

Prevention and treatment of neuropathic pain (NP) is one of the most difficult problemsin clinical practice since the underlying mechanism of NP is unclear. In previous studies, theincreased production of nitric oxide (NO) has been closely linked to the induced NP. In thisstudy, we assessed the effect of atorvastatin through NO mechanism, on inflammation, thermalhyperalg...

[ 10 ] - Neuroprotective and Anti-inflammatory Role of Atorvastatin and Its Interaction with Nitric Oxide (NO) in Chronic Constriction Injury-induced Neuropathic Pain

Prevention and treatment of neuropathic pain (NP) is one of the most difficult problemsin clinical practice since the underlying mechanism of NP is unclear. In previous studies, theincreased production of nitric oxide (NO) has been closely linked to the induced NP. In thisstudy, we assessed the effect of atorvastatin through NO mechanism, on inflammation, thermalhyperalg...

[ 11 ] - Current Models for Predicting Drug-induced Cholestasis: The Role of Hepatobiliary Transport System

Drug-induced cholestasis is the main type of liver disorder accompanied by high morbidity and mortality. Evidence for the role of hepatobiliary pumps in the cholestasis patho-mechanism is constantly increasing. Recognition of the interactions of chemical agents with these transporters at the initial phases of drug discovery can help develop new drug candidates with low cholestasis potential. Th...

[ 12 ] - Current Models for Predicting Drug-induced Cholestasis: The Role of Hepatobiliary Transport System

Drug-induced cholestasis is the main type of liver disorder accompanied by high morbidity and mortality. Evidence for the role of hepatobiliary pumps in the cholestasis patho-mechanism is constantly increasing. Recognition of the interactions of chemical agents with these transporters at the initial phases of drug discovery can help develop new drug candidates with low cholestasis potential. Th...