scholarly journals Comparative study of the antihypertensive effects of hexane, chloroform and methanol fractions of essential oil of Alpinia zerumbet in rats Wistar

2016 ◽  
Vol 18 (1) ◽  
pp. 113-124 ◽  
Author(s):  
G.H. CUNHA ◽  
F.V. FECHINE ◽  
F.A. FROTA BEZERRA ◽  
M.O. MORAES ◽  
E.R. SILVEIRA ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Vascular Reactivity ◽  
Antihypertensive Effect ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Resonance Spectroscopy ◽  
Hypertensive Rats ◽  
Male Wistar Rats ◽  
Main Components

ABSTRACT The aim of this study was to characterize components of the EOAz and its hexane (HFEOAz), chloroform (CFEOAz) and methanol (MFEOAz) fractions, and its antihypertensive effect. EOAz was extracted from leaves by hydrodistillation. Aliquot was subjected to selective desorption with silica gel column and eluted with hexane, chloroform and methanol. The components of the EOAz and fractions were analyzed by gas chromatography coupled with mass spectrometry and nuclear magnetic resonance spectroscopy of hydrogen. Experiments of vascular reactivity were performed with isolated aortic rings of male Wistar rats. Antihypertensive effect was evaluated in hypertensive rats submitted to the inhibition of synthesis of nitric oxide. Blood pressure was measured indirectly by tail plethysmography. MFEOAz showed the lowest EC50 (150.45 µg/mL), 1,8-cineole (27.81%) and terpinen-4-ol (57.35%) as main components. Single administration by nasogastric tube of EOAz, fractions and captopril significantly reduced the blood pressure of hypertensive rats, when compared to animals of the negative control group with distilled water. In conclusion, the potency of the MFEOAz was higher than that of EOAz and other fractions. The antihypertensive effect of EOAz and fractions was similar, higher than the negative control and lower than that of captopril.

scholarly journals STUDY OF THE POSSIBLE ANTIHYPERTENSIVE AND HYPOLIPIDEMIC EFFECTS OF AN HERBAL MIXTURE ON L-NAME-INDUCED HYPERTENSIVE RATS

2016 ◽  
Vol 9 (5) ◽  
pp. 85 ◽  
Author(s):  
Doha Aboubaker ◽  
Souad E El-gengaihi ◽  
Mouchira Abdel Salam ◽  
Bassant Mm Ibrahim ◽  
Seham El-batran
Keyword(s):  
Blood Pressure ◽  
Aqueous Extract ◽  
Medical Condition ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Chronic Medical Condition ◽  
Control Group ◽  
Hypertensive Rats ◽  
Improve Blood Pressure Control

ABSTRACTObjective: Hypertension is a chronic medical condition. Diet can improve blood pressure control and decrease the risk of health complication.Methods: In this study, four plants: Roselle, Marjoram, Chamomile, and Doum were extracted by water. Equal portions of them were mixed. Lethaldose 50% of the mixture was assayed; the dose which did not cause any mortality was 266.94 mg/100 g body weight. Animals were classified into fivegroups: Negative control group, positive control group where hypertension was induced by L-name, two groups treated with two doses of the mixture,and a group treated with prazosin as a standard treatment. Treatment of hypertensive rats continued for 4 successive weeks.Results: Treatment with the mixture showed a significant reduction in blood pressure of hypertensive rats, as well as serum cholesterol, low-densitylipoprotein-cholesterol, and urea levels when compared to positive control group.Conclusion: The results obtained suggest that the aqueous extract is efficient as an antihypertensive and hypolipidemic agent.Keywords: Rats, Aqueous extract, Hypertension, Hyperlipidemia, L-name.

The Antihypertension Effect of Fermented Skipjack Tuna (Katsuwonus pelamis L.)/Bakasang’s Peptide Extract Based on Cardiac’s Histopathology and Protease Activity on Hypertensive Rats Induced by Deoxycorticosterone Acetate (DOCA) -Salt

2017 ◽  
Vol 9 (1) ◽  
Author(s):  
Hilman Nurmahdi ◽  
Dyah Kinasih Wuragil ◽  
Sasangka Prasetyawan ◽  
Aulanni’am Aulann’am
Keyword(s):  
Blood Pressure ◽  
Angiotensin Ii ◽  
Protease Activity ◽  
Cardiac Tissue ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Skipjack Tuna ◽  
Hypertensive Rats ◽  
Katsuwonus Pelamis

Hypertension is an abnormality of cardiovascular condition, marked by high-blood pressure over the normal condition. One of the factors that causes hypertension is altered equilibrium of Renin-Angiotensin-Aldosteron system (RAAS). This condition, which commonly by genetic could causes excess production of Angiotensin II, which known as vasoconstrictor, carried out by Angiotensin Converting Enzyme (ACE). Angiotensin II could increases the body’s blood pressure, and stimulates the production of free radicals, causing hypertension and oxidative stress. One of the common medication for hypertensive patient are using ACE inhibitor pills. Consumption of commercial pills, had a negative effect on the patient, such as skin iritation, cough, allergic reaction, etc. This study was conducted to explore the potential peptide of bakasang extract isolated from fermented skipjack tuna (Katsuwonus pelamis L.) for antihypertensive therapy, based on the activity of protease and histopathology of cardiac tissue on hypertensive rats (Rattus norvegicus) induced by DOCA-salt. The rats were divided into five groups: (1) negative control group, (2) hypertensive control group, (3) hypertension with captopril therapy dose of 5 mg/kg of body weight (BW), (4) and (5) hypertension with bakasang’s peptide extract therapy dose of 200 mg/kgBW, and 300 mg/kgBW, respectively. The results showed that bakasang’s peptide extract dose of 200 mg/kgBW significantly (p less than 0.05) decrease protease activity and improve histopathology of cardiac tissue on hypertensive rats. Protease activity post-therapy decreased to be 39.27 % from positive hypertension group. It could be concluded that the peptide of bakasang’s peptide extract has antihypertension effect (ACE-inhibitors), which was able to improve histopathology and decrease protease activity of the cardiac tissue on hypertensive rats induced by DOCA-salt.

Prevention and therapy of 1,2-dimethyl hydrazine induced colon carcinogenesis by Ferula assafoetida hydroalcoholic extract / 1,2-dimetilhidrazin ile indüklenmiş kalın bağırsak kanserlerinin Ferula assa-foetida ekstraktı kullanılarak önlenmesi ve tedavisi

2015 ◽  
Vol 40 (5) ◽  
Author(s):  
Fatemeh Torabi ◽  
Abolfazl Dadkhah ◽  
Faezeh Fatemi ◽  
Salome Dini ◽  
Mohsen Taghizadeh ◽  
...  
Keyword(s):  
Colon Carcinogenesis ◽  
Negative Control Group ◽  
Negative Control ◽  
Detoxification Enzymes ◽  
Control Group ◽  
Hydroalcoholic Extract ◽  
Reducing Ability ◽  
Male Wistar Rats ◽  
Antioxidant Parameters ◽  
Ferula Assafoetida

AbstractObjective: In this study, we have evaluated the chemopreventive and chemotherapeutic effects of Ferula assa-foetida hydroalcoholic extract in 1, 2-dimethyl hydrazine (DMH) induced colon carcinogenesis.Methods: Male Wistar rats were divided into 6 groups: a negative control group without DMH; control group with injected DMH (20 mg/Kg b.w) and four groups receiving DMH +F. assa- foetida extract (6.25 and 12.5 mg/Kg b.w) as chemopreventive and chemotherapeutic groups. The effects of the extracts were assessed by estimating the hepatic oxidative stress/antioxidant parameters such as malondialdehyde, glutathione and ferric reducing ability of plasma (MDA, GSH, FRAP) and the detoxification enzymes; glutathione S-transferase and Cytochrome PResults: The results showed that the F. assa-foetida extracts markedly reversed the increased levels of CYPConclusion: The achieved results suggested the beneficial effect of the extracts on DMH metabolic processes in the colon indicating its chemopreventive and chemotherapeutic effects on colon carcinogenesis induced by DMH.

scholarly journals Effects of Steroidal and Nonsteroidal Drugs on Tooth Movement and Root Resorption in the Rat Molar

2009 ◽  
Vol 79 (4) ◽  
pp. 715-726 ◽  
Author(s):  
Carmen Gonzales ◽  
Hitoshi Hotokezaka ◽  
Ken-Ichiro Matsuo ◽  
Tatsunori Shibazaki ◽  
Joseph H. Yozgatian ◽  
...  
Keyword(s):  
Tooth Movement ◽  
Root Resorption ◽  
Three Dimensional ◽  
Negative Control Group ◽  
Treated Group ◽  
Negative Control ◽  
Control Group ◽  
High Dose ◽  
Experimental Control ◽  
Male Wistar Rats

Abstract Objective: To test the hypothesis that the administration of aspirin, acetaminophen, meloxicam, celecoxib, and prednisolone have no effect on root resorption and tooth movement. Materials and Methods: A mesial force of 50 g was applied to the left maxillary first molars of sixty 10-week-old male Wistar rats using nickel titanium closed coil springs attached to the cervical area of the incisors. The rats were randomly divided into 12 groups of 5 each. High and low doses of aspirin, acetaminophen, meloxicam, celecoxib, and prednisolone were administered via drinking water for 2 weeks. The experimental control group had tooth movement but received no drug. The negative control group received neither tooth movement nor drugs. The amount of tooth movement was measured on digitized lateral cephalometric radiographs. Rats were sacrificed after 2 weeks. Mesial and distal roots (distobuccal and distopalatal) were examined using scanning electron and three-dimensional (3D) scanning laser microscopes. The surface area, depth, volume, and roughness of the root resorption craters were measured. Results: When compared with experimental control rats, only prednisolone- and high-dose celecoxib-treated groups showed significantly less root resorption and less tooth movement. Although low dose celecoxib-treated group significantly decreased the tooth movement, root resorption was similar to the control group. Furthermore, resorption craters showed a smoother surface in the prednisolone-treated rats. Conclusions: The hypothesis was rejected. Administration of prednisolone and high-dose celecoxib reduces root resorption and interferes with tooth movement in rats. Both drugs may interfere in the arachidonic acid cascade depending on dose thresholds.

scholarly journals The Use of Aloe vera Gel on Scar Collagen

2021 ◽  
Vol 4 (2) ◽  
pp. 89
Author(s):  
Amania Nur Alam ◽  
Muhammad Jailani ◽  
Siti Hajar
Keyword(s):  
Aloe Vera ◽  
Negative Control Group ◽  
Treated Group ◽  
Negative Control ◽  
Control Group ◽  
Control Group Design ◽  
Collagen Formation ◽  
Aloe Vera Gel ◽  
Post Test ◽  
Male Wistar Rats

Aloe vera have active chemicals substances including saponins, tannins, flavonides, and polyphenols. Saponin takes a role as a disinfectant, so it is normally effective for healing any open wounds, while tannins have ability to be an antiseptic. This study aims to see how the effect of the Aloe vera gel on wound collagen, and too inspect which is the most effective concentration of the Aloe vera gel in the formation of wound collagen in wistar strains (Rattus novergicus) rats. This study uses a post-test only method with control group design. The subjects of this study were 28 male Wistar rats (Rattus novergicus). The subjects were divided into 4 groups consisting of 1 negative control group and 3 treated groups, the control group was not given any treatment, while the treated group was given the Aloe vera gel with each concentrations of 12.5%, 25%, and 50% respectively. The experiment was started by making a wound on the back of the rat which then be followed by applying the gel to the wound for 14 days. The results showed the group with the 50% Aloe vera gel treatment had the best collagen formation, followed by a concentration of 25%, 12.5%, and the control group. Therefore, the used of Aloe vera has given good change in scar collagen, and the best scar collagen can be viewed in the group with 50% concentrate of Aloe vera.

scholarly journals The problem of dose in homeopathy: evaluation of the effect of high dilutions of Arsenicum album 30cH on rats intoxicated with arsenic.

2021 ◽  
Vol 9 (33) ◽  
pp. 128-137
Author(s):  
Olney Leite Fontes ◽  
Fátima Cristiane Lopes Goularte Farhat ◽  
Amarilys Toledo Cesar ◽  
Marilisa Guimarães Lara ◽  
Maria Imaculada Lima Montebelo ◽  
...  
Keyword(s):  
Negative Control Group ◽  
Positive Control ◽  
Oral Route ◽  
Negative Control ◽  
Control Group ◽  
Before And After ◽  
Male Wistar Rats ◽  
High Dilutions ◽  
Living Organisms

Background: Although scientific studies have confirmed the action of homeopathic high dilutions in living organisms an endless debate on the choice of the most fitting dilution, the frequency of administration and the dose (amount of medicine) still remains. Aims: This study sought to assess the in vivo effect of 2 different concentrations of Arsenicum album 30cH in order to elucidate some problems in the homeopathic notion of dose. Methods: Male Wistar rats previously intoxicated with sodium arsenate by peritoneal injection were treated with undiluted Ars 30cH and Ars 30cH in 1% solution administered by oral route. Atomic absorption spectroscopy was employed to measure the levels of arsenic retained in the animals as well as the amounts eliminated through urine. Urine samples were collected before and after and during treatment. A positive control group (intoxicated animals) and negative control group (non-intoxicated animals) were administered only the vehicle used to prepare the medicine (ethanol). Results: The groups treated with undiluted Ars 30cH and Ars 30cH in 1% solution eliminated significant amounts of arsenic through urine when compared to the control groups. The group treated with undiluted Ars 30cH eliminated significantly higher amounts of arsenic than the group treated with the same medicine in 1% solution. Conclusion: These results suggest that undiluted Ars 30cH was more effective than in 1% solution in this experimental model.

scholarly journals The Activity of Cainito Leaves Ethanol Extract (Chrysophyllum cainito L.) on Wistar’s Total Erythrocites Induced Cyclophosphamide

2020 ◽  
Vol 6 (2) ◽  
pp. 98
Author(s):  
Heri Puguh Widodo ◽  
Ika Rahmawati Sutejo ◽  
Rini Riyanti
Keyword(s):  
Ethanol Extract ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Test Results ◽  
Chemotherapy Drugs ◽  
Male Wistar Rats ◽  
One Way Anova ◽  
Test Result

One of the commonly used chemotherapy drugs is cyclophosphamide. However, the use of cyclophosphamide can provide various toxic effects. The most common toxic effect of cyclophosphamide is bone marrow suppression with anemia as one of its markers. The antioxidant content of cainito leaf potentially increase the production of blood cells, especially erythrocytes. The aims of this study is determining the effectiveness of the cainito leaf ethanol extract against cyclophosphamide induced mouse erythrocyte count in vivo. A sample of 20 male wistar rats was divided into five groups; normal group, negative control group, and three groups of ethanol extract of cainito leaf with dose 100 mg/kgBW, 200 mg/kgBW, and 400 mg/kgBW were administered for one week followed by intraperitoneal cyclophosphamide with dose 50 mg/kgBW as much as one time. One Way Anova Test result showed a significance of 0.015 (p<0.05). However, the LSD test results showed no significant different results between the negative control group and the treatment group. The conclusion was that there was no difference in the amount of erythrocytes in mice given only cyclophosphamide with previous rats given cainito extract.

Leaf paste of Telfairia occidentalis favourably modulates deleterious effects associated with exposure to diethylnitrosamine in male Wistar rats

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Solomon E. Owumi ◽  
Jeremiah O. Olugbami ◽  
Andrew O. Akinnifesi ◽  
Oyeronke A. Odunola
Keyword(s):  
Blood Glucose ◽  
Wistar Rats ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Telfairia Occidentalis ◽  
Male Wistar Rats

Abstract Objectives Diethylnitrosamine (DEN) is found in workplaces, processed meats, tobacco smoke, whiskey, etc. It is capable of forming DNA-adducts. Fluted pumpkin (Telfairia occidentalis [To]) is a medicinal plant, and its herbal preparations have been employed variously in ethnomedicine. Furthermore, it has been reported to possess anti-oxidant, anti-cancer, anti-inflammatory properties. We investigated the possible mitigating effect of the leaf paste of To on DEN-induced deleterious effects in male Wistar rats. Methods Forty-five rats weighing between 100 and 150 g were equally divided into nine groups and treated thus: Group 1 (negative control), Group 2 (0.05 mg/kg carboxymethyl cellulose [CMC] daily), Group 3 (positive control, 25 mg/kg bw DEN administered intraperitoneally thrice per week), Group 4 (25 mg/kg bw quercetin [QUE] daily alone), Groups 5 and 6 (100 and 200 mg/kg bw To daily, respectively), Group 7 (25 mg/kg bw DEN and QUE), Groups 8 and 9 (25 mg/kg bw DEN with 100 and 200 mg/kg bw To, respectively). Blood glucose levels, liver damage biomarkers (aspartate aminotransferase [AST], alanine aminotransferase [ALT] and gamma-glutamyltransferase [γ-GT]), frequency of micronucleated polychromatic erythrocyte (mPCEs), and liver histology were assessed. Results DEN significantly (p<0.05) increased blood glucose levels, activities of ALT, AST and γ-GT, and frequency of mPCEs. Histologically, DEN caused a severe architectural anarchy. However, the intervention groups demonstrated the remarkable protective properties of To by ameliorating the adverse effects caused by DEN. Conclusions Taken together, the leaf paste of To is capable of mitigating DEN-induced hepatotoxicity and clastogenicity in male Wistar rats.

Antihypertension Effect from Bakasang’s Peptide Extract Based on MDA Levels in Sera and iNOS Expression in Cardiac Tissue of Rats Hypertensive Model

2017 ◽  
Vol 9 (2) ◽  
Author(s):  
Hilman Nurmahdi ◽  
Sasangka Prasetyawan ◽  
Max Robinson Wenno ◽  
Aulanni’am Aulann’am
Keyword(s):  
Blood Pressure ◽  
Angiotensin Ii ◽  
Cardiac Tissue ◽  
Genetic Disorder ◽  
Negative Control Group ◽  
Negative Control ◽  
Inos Expression ◽  
Control Group ◽  
Katsuwonus Pelamis ◽  
Group 2

Hypertension is an abnormality of cardiovascular condition, marked by high-blood pressure over normal condition. One of the factors that causes hypertension is altered equilibrium of Renin-Angiotensin-Aldosteron system, which commonly caused by genetic disorder, could produces excess of Angiotensin II which known as vasoconstrictor. Angiotensin II elevates body’s blood pressure and stimulates production of free radicals causes hypertension and oxidative stress. This research conducted to explore potential antihypertension effect from bakasang’s peptide extract made from fermented skipjack tuna (Katsuwonus pelamis L.) based on MDA levels in sera and iNOS expression in cardiac tissue from hypertension rats (Rattus norvegicus) induced by DOCA-salt. Rats were divided into five groups, they were: (1) negative control group, (2) hypertensive control group, (3) hypertension with captopril therapy with dose of 5 mg/kg of body weight (BW), (4,5) bakasang’s peptide extract therapy with dose of 200 mg/kgBW, and 300 mg/kgBW respectively. The results showed that bakasang’s peptide extract with dose of 200 mg/kgBW significantly decrease (p less than 0.05) MDA level in sera and iNOS expression in cardiac tissue. MDA level decreased up to 32.77%, and iNOS level of expression decreased up to 34.46 % after therapy using bakasang’s peptide extract on hypertension rats. It can be concluded that bakasang’s peptide extract has antihypertension effect (ACE-inhibitor), and capable to decrease MDA levels in sera and iNOS expression in cardiac tissue on hypertension rats induced by DOCA-salt.

scholarly journals POTENTIAL ANTI-INFLAMMATORY ACTIVITY OF PLUMBAGO ZEYLANICA

2017 ◽  
Vol 10 (10) ◽  
pp. 372
Author(s):  
Vetriselvan Subramaniyan ◽  
Velmurugan Paramasivam
Keyword(s):  
Test Dose ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Inflammatory Activity ◽  
Control Group ◽  
Paw Edema ◽  
Plumbago Zeylanica ◽  
Male Wistar Rats ◽  
Anti Inflammatory

  Objective: To determine the anti-inflammatory activity of dichloromethane extract of Plumbago zeylanica (DMEPZ), and its possible mechanism of action.Methods: Male Wistar rats (180-200 g) under controlled standard conditions (24±1°C, 55-58 humidity and 12 hrs light/dark cycle). The groups were divided into 5 groups (n=6/group) and assigned as positive control, negative control, and standard and two different test dose groups of P. zeylanica. Paw edema induced by subplantar injection of 0.1 mL of carrageenan (suspended in 1% carboxymethyl cellulose) into the right hind paw in all groups except negative control group. Granuloma induced by cotton pellets (10±1 mg) were implanted into groin region of each rat. The groups were divided into 4 groups (n=6/group) and assigned as possitive control, two different test dose groups of P. zeylanica and standard.Results: Oral administration of DMEPZ shown a significant (p<0.05) dose-dependent protection against carrageenan-induced paw edema. At 1st hr, P. zeylanica shown an inhibition effect of edema in the different doses of 250 mg/kg and 500 mg/kg were found to be 28.57 and 31.79%, respectively. At 3rd hrs, the paw edema inhibition was found to be 30.70 and 40.15%, respectively. Diclofenac (25 mg/kg) had effect of 34.10 and 41.73% (p<0.001) inhibition of paw edema at in 1 and 3 hrs. P. zeylanica 500 mg/kg showed percentage inhibition of wet and dry cotton pellet granuloma in rats 55.84% and 47.92%, respectively.Conclusion: Thus, the present study revealed that the DMEPZ offered significant protection against inflammation.

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