Mohammad Naser Shafei
Neurogenic Inflammation Research Centre, Mashhad University of Medical Sciences, Mashhad, Iran
[ 1 ] - Protective effects of long-term administration of Ziziphus jujuba fruit extract on cardiovascular responses in L-NAME hypertensive rats
Objective: Ziziphus jujuba stimulates the release of nitric oxide (NO). Because NO is involved in cardiovascular regulations, in this study the effects of hydroalcoholic extract of Z. jujuba on cardiovascular responses in acute NG-nitro-L-arginine methyl ester (L-NAME) hypertensive rats were evaluated. Materials and Methods: Rats were divided into 6 group (n=6): 1) saline, 2) L-NAME received (...
[ 2 ] - Doxorubicin-induced renal inflammation in rats: Protective role of Plantago major
Objective: The aim of the present study was to evaluate the possible protective effect of Plantago major (P. major) extract against doxorubicin (DXR)-induced renal inflammation in rats. Materials and Methods: 80 male albino rats were randomly divided into 8 groups as follows: control, DXR, Ext (extract) 600, Ext1200, dexamethasone+DXR, vitamin E+DXR, Ext600+DXR, and Ext1200+DXR. Duration of the...
[ 3 ] - Crocin prevents acute angiotensin II-induced hypertension in anesthetized rats
Objective: Angiotensin II (Ang II), the main product of renin-angiotensin system (RAS) has a well-known role in cardiovascular regulation. Over-production of Ang II is one of the important underlying mechanisms of hypertension. In this study, the effect of crocin on cardiovascular responses in rats with acute hypertension induced by Ang II was evaluated. Materials and methods: Rats were divided...
[ 4 ] - Adriamycin-induced oxidative stress is prevented by mixed hydro-alcoholic extract of Nigella sativa and Curcuma longa in rat kidney
Objective: Inflammation and oxidative stress is considered to have a crucial role in induction of nephropathy. Curcuma longa (C. longa) and Nigella sativa (N. sativa) have anti-inflammatory and antioxidant effects. This study was designed to investigate the effect of mixed hydro-alcoholic extract of N.sativa and C. longa on the oxidative stress induced by Adriamycin (ADR) in rat kidney. Materia...
[ 5 ] - The effects of Nigella sativa on sickness behavior induced by lipopolysaccharide in male Wistar rats
Objective: Neuroimmune factors contribute on the pathogenesis of sickness behaviors. Nigella sativa (NS) has anti-inflammatory, anti-anxiety and anti-depressive effects. In the present study, the effect of NS hydro-alcoholic extract on sickness behavior induced by lipopolysaccharide (LPS) was investigated. Materials and Methods: The rats were divided into five groups (n=10 in each): (1) control...
[ 6 ] - Effect of hydro-alcoholic extract of Rosa damascena on cardiovascular responses in normotensive rat
Objective: Rosa damascena mill L. (R. damascena) is a well-known plant with fragrant effects. Several therapeutic effects of this plant on respiratory, gastrointestinal and nervous systems have been reported. It is also suggested to have beneficial effect on cardiovascular system especially blood pressure regulation. The present study was carried out to evaluate acute cardiovascular effect of h...
[ 7 ] - Effect of aqueous fraction of Rosa damascena on ileum contractile response of guinea pigs
Objective: The use of drugs with herbal origin is increasing for treatment of gastrointestinal (GI) disorders. Rosa damascena (R. damascena) is a well-known plant suggested to have beneficial effect on GI system. In this study, the effect of aqueous fraction of R. damascena on the contractionsofisolated guinea pig ileum was investigated. Materials and Methods: Aqueous fraction of plant was obta...
[ 8 ] - Evaluation of antidepressant effect of ethanolic extract of Rosa damascena using forced swimming test
Objective: Rosa damascena mill L (R. damascena) is a medicinal plant mostly known in the world for its perfume. It also has beneficial effects on stress, tension and depression. In this experiment antidepressant effect of ethanolic extract of R. damascena by forced swimming test (FST) was evaluated. Material and Methods: Animals received ethanolic extract (15, 60 and 90 mg/kg, i.p), imipramine...
[ 9 ] - Antidepressant-like effect of aqueous extract from Rosa damascena in mice
Objective: Rosa damascena mill L (R. damascena) is an ornamental plant that has several therapeutic (such as sedative and hypnotic) effects. It also heals depression, grief, nervous stress and tension. In the present study we evaluated antidepressant-like effect of R. damascena using forced swimming test (FST). Material and Methods: Three doses of aqueous extract (15, 60 and 90 mg/kg) was inje...
[ 10 ] - Evaluation of nicotinic receptor of pedunculopontine tegmental nucleus in central cardiovascular regulation in anesthetized rat
Objective(s): Cholinergic neurons are important neurons in the Pedunculopontine tegmental nucleus (PPT). In this study, nicotinic receptor of the PPT in central cardiovascular regulation in the anesthetized rat was evaluated. Materials and Methods: Saline, acetylcholine (Ach; doses: 90 and 150 nmol), hexamethonium (Hexa; doses: 100 and 300 nmol) and higher doses of Hexa (300 nmol) + Ach (150 nm...
[ 11 ] - Cardiovascular effects of nitrergic system of the pedunculopon-tine tegmental nucleus in anesthetized rats
Objective(s): Nitric oxide (NO) is an important neurotransmitter in central nervous system involved in central cardiovascular regulation. The presence of NO in the pedunculopontine tegmental (PPT) nucleus has been shown, but its cardiovascular effect has not been determined. In the present study, the cardiovascular effect of NO in the PPT nucleus was evaluated. Materials and Methods: After indu...
[ 12 ] - The Effects of Nigella Sativa Hydro-alcoholic Extract on Memory and Brain Tissues Oxidative Damage after Repeated Seizures in Rats
Regarding the therapeutic properties of Nigella sativa (NS), the effects of the plant hydro – alcoholic extract on learning, memory and brain tissues oxidative damage were investigated in penthylenetetrazole (PTZ) - induced repeated seizures.There were 4 experimental groups including: 1- control group; received saline, 2- PTZ group ; received saline and PTZ (50 mg/kg, i.p) , 3-PTZ- NS 200 and 4...
[ 13 ] - The Effects of Nigella Sativa Hydro-alcoholic Extract on Memory and Brain Tissues Oxidative Damage after Repeated Seizures in Rats
Regarding the therapeutic properties of Nigella sativa (NS), the effects of the plant hydro – alcoholic extract on learning, memory and brain tissues oxidative damage were investigated in penthylenetetrazole (PTZ) - induced repeated seizures.There were 4 experimental groups including: 1- control group; received saline, 2- PTZ group ; received saline and PTZ (50 mg/kg, i.p) , 3-PTZ- NS 200 and 4...
[ 14 ] - اثر تزریق داخل صفاقی کروسین بر پارامترهای قلبی -عروقی در موشهای صحرایی پر فشار خونی القا شده به وسیله آنژیوتانسین 2
اهداف: اثر ضد پرفشار ی (Hypertension) تزریق وریدی کروسین در مطالعه قبلی ما مشاهده شده است. در این مطالعه اثر تزریق داخل صفاقی(ip) کروسین (Crocin) بر پرفشاری ناشی از آنژیوتانسین 2 (Angiotensin II: Ang II) با دوز ng/kg 50 در موش های صحرایی بررسی شد. مواد و روشها: در مطالعه تجربی حاضر، 30 سر موش صحرایی نر نژاد ویستار به طور تصادفی به 5 گروه: Control (Cont)، Ang II50، Losartan (Los) + Ang II، ...
[ 15 ] - Effect of Plantago major extract on doxorubicin-induced nephropathy in rat
Introduction: Nephropathy is defined as rational loss of renal function related with glomerulosclerosis and declining glomerular filtration rate. Inflammation and oxidative stress play a critical role in nephropathy. Plantago major has antioxidant effects. The aim of present study is the investigation of the effect of Plantago major hydro-alcoholic extract on the oxidative stress and renal func...
[ 16 ] - The effects of PPAR-γ agonist pioglitazone on hippocampal cytokines, brain-derived neurotrophic factor, memory impairment, and oxidative stress status in lipopolysaccharide-treated rats
Objective(s): The aim of current study was to evaluate improving effects of pioglitazone as an agonist of peroxisome proliferator-activated receptor gamma (PPARγ), on brain-derived neurotrophic factor (BDNF) and cytokines as well as tissue oxidative damage criteria in the hippocampus in a rat model of lipopolysaccharide (LPS) induced memory impairment.<strong...
[ 17 ] - Role of the Nitrergic System of the Cuneiform Nucleus in Cardiovascular Responses in Urethane-Anesthetized Male Rats
Background: The presence of nitric oxide (NO) in the cuneiform nucleus (CnF) has been previously shown. In this study, NG-nitro-L-arginine methyl ester (L-NAME) (an inhibitor of NO synthase), L-arginine (L-Arg) (a precursor of NO), and sodium nitroprusside (SNP) (a donor of NO) were microinjected into the CnF and cardiovascular responses were investigated. Methods: Seventy male rats were divide...
[ 18 ] - The Effects of Inactivation of Pedunculopontine Tegmental Nucleus by Cobalt (II) Chloride on Cardiovascular Responses in Hemorrhagic Hypotensive Rats
Introduction: Based on the evidence, the Pedunculopontine Tegmental nucleus (PPT) is involved in cardiovascular function regulation. In this study, the probable role of PPT on cardiovascular parameters in the hypotension induced by Hemorrhage (HEM) was evaluated. Methods: The study rats were divided up into 5 groups: 1. Control (Saline); 2. Cobalt(II) chloride (CoCl2); 3. HEM; 4. Saline+HEM; ...
[ 19 ] - Cardiovascular effects of standardized hydroalcoholic extract of Ribes khorasanicum fruit in acute hypertensive rats
Objective: Ribes khorasanicum (R. khorasanicum)traditionally has been used for the treatment of higher blood pressure. In this study, the effect of hydroalcoholic extract of R. khorasanicum fruit in normotensive and hypertensive rats was evaluated. Materials and Methods: Animals were assigned into the following groups: 1) Control, 2) AngII (50 ng/kg), 3) ...
[ 20 ] - Involvement of the 5-HT1A receptor of the cuneiform nucleus in the regulation of cardiovascular responses during normal and hemorrhagic conditions
Objective(s): The 5-hydroxytryptamine1A (5-HT1A) receptor is one of the serotonin receptors in the brain, which regulates cardiovascular responses, especially in hemorrhage. Presence of this receptor in the cuneiform nucleus (CnF) has been shown. The present study evaluates the cardiovascular effect of this receptor of the CnF in normal and hypotensive hemorrhagic rats...
[ 21 ] - Cardiovascular Effect of Cuneiform Nucleus During Hemorrhagic Hypotension
Introduction: The underlying mechanism responsible for the cardiovascular response to hemorrhage (HEM) is still unknown; however, several brain areas, such as the cuneiform nucleus (CnF) have shown to be involved. In this study, the cardiovascular effect of the CnF during HEM was evaluated. Methods: The animals were divided into the following groups: 1. Vehicle; 2. HEM; 3. Cobalt chloride (CoC...
[ 22 ] - Cardiovascular Effect of Dorsal Periaqueductal Gray During Lipopolysaccharide-induced Hypotension
Introduction: The central mechanism related to the cardiovascular response to lipopolysaccharide (LPS)-induced hypotension is not entirely known, but it is suggested that numerous brain areas such as dorsal periaqueductal gray (dPAG) are involved in this process. In the current work, the cardiovascular effect of the dPAG during LPS-induced hypotension is investigated. Methods: The study animal...
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