Garlic Homogenate Research Articles

Interaction of Garlic with Carvedilol during Ischemia-Reperfusion Induced Myocardial Damage in Rats

Concurrent administration of herbs with drugs may magnify, oppose or mimic the pharmacological effect of each other. The current research was carried out to determine the cardio protective potential of garlic homogenate (GH) when administered with carvedilol (CAR) on ischemia-reperfusion injury (IRI) in isolated rat heart preparation. Pretreated male albino rats were anesthetized, hearts were excised and mounted on modified Langendorff setup, perfused with physiological salt solution, after initial stabilization, subjected to 15 min global no flow ischemia (IRI) and re-perfused. Prior treatment of animals with CAR, GH-125 and GH-250 showed significant recovery from IRI induced myocardial damage evident from significant decline in LDH and CK-MB in post-ischemic perfusate; this was further validated by incline in the above biomarkers in the heart tissue homogenate (HTH). Further, significant recovery of developed tension and heart rate were found in treated groups when compared to control. Furthermore, GH-250 treated groups with CAR showed significant increase in endogenous antioxidant enzyme like SOD and catalase activities. This enhanced antioxidant activities might be due to possible role of CAR in augmenting the role of GH to either increase synthesis of antioxidants or trigger degeneration of oxidants. However, high dose of GH-500 failed to provide similar results in presence of CAR. In conclusion, simultaneous administration of CAR and moderate dose of GH (250 mg/kg) provided enhanced protection to myocardium from myocardial injury when compared to their individual administration. Therefore, diet containing moderate quantities of garlic could prove beneficial to the heart and administration of garlic with CAR produces additive effect.

Bioactive Compounds in Dietary Spices and Medicinal Plants

Aim of this review is to show the most important bioactive compounds in hot spices such as black pepper (Piper nigrum L.), chilli pepper (Capsicum annuum L.) and medicinal plant such AS garlic (Allium sativum L.), and its modes of action. Piperine is an alkaloid responsible for the pungency of black pepper, along with chavicine (C17H19NO3) which is an alkaloid found in black pepper and other species of the genus Piper. It is one of the four geometric isomers of piperine. The active compound in black pepper is piperine (Bioperine; N-[(E,E)-Piperoyl]piperidine; Piperine (aliphatic); 1-[(2E,4E)-5-(1,3-benzodioxol-5-yl)penta-2,4-dienoyl]piperidine and etc.) which is responsible for bio enhancing effect. It has been found that piperine bioavailability enhancing property may be attributed to increased absorption, which may be due to alteration in membrane lipid dynamics and change in the conformation of enzymes in the intestines. Capsinoids is a family of compounds that are analogues of capsaicin, which is the pungent component in chilli peppers. Capsinoids are widely present at low levels in chilli pepper fruit which include capsiate, dihydrocapsiate, and nordihydrocapsiate. Capsaicin (C18H27NO3 or 8-Methyl-N-vanillyl-trans-6-nonenamide) is the active substance responsible for the irritating and pungent effects of various species of hot peppers. Allicin (C6H10S2O; allyl 2-propenethiosulfinate or diallyl thiosulfinate) is an organosulfur compound obtained from garlic, a species in the family Alliaceae. It was first isolated and studied in year 1944 and it is thought to be the principal bioactive compound present in aqueous garlic extract or raw garlic homogenate. When garlic is chopped or crushed, alliinase enzyme, present in garlic, is activated and acts on alliin (C6H11NO3S) to produce allicin. Other important sulfur containing compounds present in garlic are allyl methyl thiosulfonate, 1-propenyl allyl thiosulfonate, and γ-l glutamyl-S-alkyl-l-cysteine. These compounds provide garlic its characteristic odour and flavour. Small amounts of nonvolatile water-soluble sulfur compounds such as S-allyl cysteine are found in garlic as well. These biological responses of all this bioactive compounds have been largely attributed to reduction of risk factors for cardiovascular diseases and cancer, stimulation of immune function, enhanced detoxification of foreign compound, antihepatotoxicity, cholesterol content reduction, antimicrobial effect, antifungal effect, antiinflammatory effect and antioxidant effect when consumed by animals or humans.

Potential Interaction of Fresh Garlic with Metformin during Ischemia-Reperfusion Induced Cardiac Injury in Diabetic Rats.

Methods The study was undertaken on both normoglycemic and alloxan (90 mg/kg) induced diabetic Sprague Dawley rats weighing 150–250 g. At the completion of the treatment phase (30 days for garlic, 250 mg/kg, oral; 10 days for MET, 70 mg/kg, oral), rats were anesthetized and mounted on the modified Langendorff's apparatus. IRI was produced by myocardial no-flow global ischemia. Developed tension (DT) and heart rate (HR) were recorded both before and after ischemia. The perfusate was collected to estimate the leakage of cardiac biomarkers (Creatine Kinase-MB: CK-MB and Lactate dehydrogenase: LDH). Hearts were removed from the setup and utilized to prepare heart tissue homogenate (HTH) and histological slides. The endogenous antioxidants, superoxide dismutase (SOD) and catalase (CAT), in addition to oxidative thiobarbituric acid substances (TBS), were estimated in HTH. Results The hemodynamic parameters, including percentage recovery in HR and DT, were found significantly higher in animals pretreated with garlic and MET in diabetic rats (DR). Both SOD and CAT enzyme activities increased significantly while TBS levels were reduced in the HTH of animals treated with garlic and MET. The cardiac markers CK-MB and LDH levels also increased in HTH with a corresponding decrease in the perfusate. The histopathological changes in the heart and pancreas demonstrated noticeable protection of the tissues due to pretreatment with garlic and MET. Taken together, these findings advocate that reactive oxygen species derived from hyperglycemia execute an important function in myocardial global IRI; the therapy of garlic homogenate was found to be effective in alleviating these toxic effects. Conclusion The combined therapy of MET and garlic provided synergistic cardioprotection, implying that garlic seems to possess promise in lowering toxic parameters by protecting diabetic induced myocardial injury.

A Study to Compare Hypolipidemic Effects of Allium Sativum (Garlic) Alone and in Combination with Atorvastatin or Ezetimibe in Experimental Model

Abstract Background: Dyslipidemia is a major cause of atherosclerosis and atherosclerosis induced conditions. Atorvastatin is an effective drug for dyslipidemia and reduce the risk of cardiovascular morbidity and mortality. Ezetimibe is used as an adjunct to statins hypercholesterolemia. Garlic is known for the hypolipidemic effect in traditional medicine. There are very limited studies comparing the additive effects of Allium sativum on atorvastatin and ezetimibe. Aims: To compare the additive hypolipidemic effects of Allium sativum with atorvastatin and ezetimibe. Setting and Design: The experimental study was done in Department of Pharmacology and Biochemistry, Burdwan Medical College, Burdwan from February 2014 - October 2015. Material and Methods: Dyslipidemia rat by (induced by atherogenic diet) were randomized into five groups of six rats in each and each cage was labelled for identification of different groups and treated with drugs (atorvastatin, ezetimibe, garlic homogenate, atorvastatin + garlic homogenate, ezetimibe + garlic homogenate) for twelve weeks and assessment of lipid profiles were done. Change of parameters checked for any significant difference by appropriate statistical tests. Results: Significant TC (Total Cholesterol) & TG (Triglyceride) concentrations reduction were maximum among ezetimibe group (51% and 47%) respectively. LDL (Low Density Lipoprotein) & VLDL (Very Low-Density Lipoprotein) concentrations reduction were maximum (62% and 26%) among combination of atorvastatin and garlic group when compared to other treatment groups. HDL (High Density Lipoprotein) concentration was maximally increased (31%) among combination ezetimibe and garlic group which was also statistically significant. Conclusion: Garlic have significant hypolipidemic effect when used in combination with atorvastatin and ezetimibe.

The impacts of garlic and voluntary training alone or together on myocardial miR-126 and miR-210 gene expressions and angiogenesis in healthy rats.

Introduction: microRNAs (miRs) play a critical role in both physiological and pathological processes. Recent studies have shown that garlic and exercise training have many beneficial effects in different disorders including cardiovascular disease. However, their mechanisms have not been fully understood. This study sought to investigate the impact of garlic and voluntary training alone or together on themiR-126 and miR-210 gene expressions and cardiac angiogenesis. Methods: Male Wistar rats were divided into four groups (n=7): (1) Control, (2) Garlic, (3) Exercise, and (4) Garlic+ Exercise. Animals were gavaged with raw fresh garlic homogenate (250 mg/kg body weight/day) or were subjected to voluntary training alone or together for about 6 weeks. The expressions of miR-126 and miR-210 in the heart tissue were measured by real-time PCR and lipid profile in serum was assessed by enzymatic kits. Angiogenesis was determined by immuno staining detection of PECAM-1 and CD31 in the heart tissue. Results: Garlic and exercise up-regulated myocardial miR-126 (P < 0.01), miR-210 (P < 0.001)expressions, and angiogenesis (P < 0.001) which was evidenced by higher CD31 expression. Besides, combination of garlic and exercise amplified their effects on those parameters (P < 0.001). Moreover, both voluntary exercise and garlic alone (P < 0.01) or together (P < 0.001) markedly modulated serum lipid profile. Conclusion: Voluntary exercise and garlic treatment for 6 weeks enhanced myocardial angiogenesis. These alterations were partly due to the increment of miR-126 and miR-210 expressions in the heart tissue in relation to improvement in lipid profile.

Combination Effect of Voluntary Exercise and Garlic (Allium sativum) on Oxidative Stress Biomarkers and Lipid Profile in Healthy Rats

Background: We evaluated the combination effect of voluntary exercise and garlic on serum oxidative stress biomarkers and lipid profile in healthy rats. Methods: The rats were randomly assigned to four groups (n=7): Control, Garlic, Exercise, and Garlic + Exercise. Rats were fed with raw fresh garlic homogenate by oral gavage (250 mg/kg) or were subjected to voluntary exercise using stainless steel running wheels alone or together for 6 weeks. The samples were collected at the end of the experiment. Results: After 6 weeks, total cholesterol, low-density lipoprotein (LDL), triglycerides (TG) and high-density lipoprotein (HDL) levels improved in both garlic and exercise group, compared with the control group. We also found that serum glutathione peroxidase (Gpx), Superoxide dismutase (SOD), Catalase (CAT), and Total antioxidant (TAC) levels enhanced significantly following the above-mentioned interventions. Furthermore, simultaneous treatment of rats with garlic and voluntary exercise had an additive effect on these parameters. However, malondialdehyde (MDA) level was not significantly different from control group during our protocol. Conclusion: The findings revealed that simultaneous treatment of rats with garlic and voluntary exercise improved antioxidant defense system and lipid profile in an additive manner in healthy rats.

The potential agents from food for preventing leukopenia induced by benzene: garlic preparations

Leukopenia is the early clinical manifestation of benzene poisoning. The aim of our research was to evaluate the preventive effects of three kinds of garlic preparations on benzene induced leukopenia. The mouse model of Leukopenia was established with benzene orally. At the same time, mice were administrated with garlic homogenate (GH), garlic oil (GO) or diallyl trisulfide (DATS) as preventional measures. The counts of white blood cells (WBC), the organ indexes, pathological examinations, blood biochemical parameters, weight gains, and food intakes were evaluated to observe the protective effect and potential adverse events. The results demonstrated that the counts of WBC increased by 144.04%, 140.07%, and 148.34%, respectively, after intervention by GH (400 mg/kg), GO (60 mg/kg) and DATS (30 mg/kg), compared with that in the model group. The spleen and thymus indexes in the benzene model group were 44.99% and 54.04% lower than those in the blank control group, the number of spleen nodules reduced and the thymus atrophy, which were restored by three garlic preparations at different degree. The results suggested that the three preparations all could prevent the leukopenia and protect the organ injuries induced by benzene. However, the spleen index and weight gains revealed that GH and GO brought more adverse events than DATS.

Contribution of garlic for improving the cytoprotective effect of mesna against cyclophosphamide toxicity in rats

Cyclophosphamide (CYP), an oxazophosphorine- alkylating agent, is a widely used drug for treatment of neoplastic and severe autoimmune diseases. Adverse effects of CYP restrict its therapeutic benefits. Mesna (MS), a thiol compound, is used as a protective agent against hemorrhagic cystitis induced by CYP. This study aimed to investigate the potential role of raw garlic homogenate (RGH) for improving the protective effect of mesna against CYP toxicity in rats. Thirty male albino rats were divided into five equal groups. Control group, CYP group (a single i.p. dose, 200 mg/kg b.wt.), CYP+MS group (a total dose of 120 mg/kg b.wt. in three equal doses, i.p.), CYP+RGH group (500 mg/kg b.wt., orally, once daily 5 days before and after CYP injection) and CYP+MS+RGH group. CYP induced hematological changes, including significant reduction of RBCs, Hb, PCV with thrombocytopenia and leukocytopenia. Also, significant increase in serum MDA content concomitantly with significant reduction in TAC was recorded. This was associated with histopathological alterations in the examined tissues. However, mesna and/or garlic improved the recorded hematological, biochemical and histopathological alterations induced by CYP with marked improvement using their combination. In conclusion, garlic supplementation in combination with mesna could be of a great value to introduce therapeutic strategies for patients undertaking cyclophosphamide therapy.

Combination effect of voluntary exercise and garlic (Allium sativum) on oxidative stress, cholesterol level and histopathology of heart tissue in type 1 diabetic rats.

Introduction: This study aimed to evaluate the combination effect of voluntary exercise and garlic on oxidative markers, cholesterol level and histological alterations in streptozotocin (STZ)- induced diabetes in rat heart. Methods: Thirty-five male Wistar rats were randomly assigned into five experimental groups (n=7): Control, Diabetes, Diabetes+Garlic, Diabetes+Exercise, Diabetes+Garlic+Exercise groups. Diabetes was induced by STZ (ip, 50 mg/kg) in animals. Animals received garlic homogenate (250 mg/kg) by oral gavage or subjected to voluntary exercise alone or together for 6 weeks. At the end of intervention blood and heart tissue samples were obtained and used for measurement of glycosylated haemoglobin (HbA1c), cholesterol, total antioxidant capacity (TAC), malondialdehyde (MDA) levels and histological analysis. Results: Improved blood glucose, cholesterol, total antioxidant capacity, and MDA levels were established in both Diabetes+Garlic and Diabetes+Exercise groups. Additionally, staining with Hematoxylin and Eosin (H&E) revealed that voluntary exercise and garlic alone and together reduced interstitial edema, leukocyte infiltration, and myonecrosis. Furthermore, simultaneous treatment of diabetic rats with garlic and exercise training had an additive effect on these parameters. Conclusion: The findings indicated that combination therapy with garlic and voluntary exercise may present more beneficial effects in heart histological remodeling in diabetic rats than the use of garlic or voluntary exercise alone and that these beneficial effects might be associated with enhancement in cholesterol, total antioxidant capacity, and MDA levels.

Enhanced Desorption Electrospray Ionization Mass Spectrometry via Synchronizing Ion Generation and Ion Injection.

A modified version of desorption electrospray ionization mass spectrometry was developed for (i) better utilization of analyte ions and (ii) larger sampling area via synchronization the pulsed nebulizer gas with ion injection. To synchronize the sheath gas, gas flow was paused for 50ms within each cycle, leading to solvent accumulation at the end of emitter tip. That solvent accumulation enlarged the desorption areas. As a result, the amount of analytes increased. Thus, the improved signal intensity (~ 2-5-folds for various substrates) was benefit from both better analyte ion utilization and larger desorption areas. Finally, the enhanced signal intensity was confirmed with both garlic homogenate and brain homogenate. Graphical Abstract ᅟ.

Garlic (Allium sativum) improves anxiety- and depressive-related behaviors and brain oxidative stress in diabetic rats

This study investigated the effects of garlic on anxiety- and depression-related behaviors and brain oxidative markers in streptozotocin (STZ)-induced diabetes in rats. Fifty-six male Wistar rats were randomly divided into seven experimental groups (n = 8/group): control, diabetic + saline, diabetic + garlic, diabetic + imipramine, and diabetic + diazepam groups. Animals received garlic homogenate (0.1, 0.25, and 0.5 g/kg) for 10 days. At the end of the treatments, anxiety- and depressive-related behaviors were evaluated by elevated plus maze (EPM) and forced swimming test (FST), respectively. Superoxide dismutase (SOD) and glutathione peroxidase (GPx) activities and malondialdehyde (MDA) levels were measured in the brain. Diabetic + garlic (0.5 g/kg) group showed lower anxiety- and- depressive-like behaviors as compared to the diabetic rats. Furthermore, garlic treatment (0.5 g/kg) attenuated MDA levels and enhanced SOD and GPx activities in the brain. Our findings indicate that garlic alleviates anxiety- and depression-related behaviors in the diabetic rats possibly by attenuation of brain oxidative stress.

Antischistosomal and anti-inflammatory activity of garlic and allicin compared with that of praziquantel in vivo

BackgroundSchistosomiasis is an acute and chronic zoonotic parasitic disease caused by trematode worms. The host inflammatory response to schistosome eggs leads to perioval granulomata formation, mainly in the liver and intestine. This study investigated the potential antischistosomal and anti-inflammatory activity of both garlic extract and allicin on liver fibrotic markers in BALB/c mice with schistosomiasis (S. mansoni infection) compared with that of the commonly used drug, praziquantel (PZQ).MethodsIn this study, 140 female BALB/c mice (7-weeks old) were divided into seven groups with 20 mice each. Six groups were infected with S. mansoni cercariae and treated with garlic, allicin, or PZQ. The seventh group was the negative control. Twenty-four hours after the final treatment, the mice were euthanised and perfused for worm recovery. The liver and intestines were harvested for parasitological and histological assessment and to analyse the proinflammatory cytokine mRNA expression.ResultsProphylactic administration of garlic and allicin to the infected mice significantly reduced the worm burden. Serum concentrations of liver fibrosis markers and proinflammatory cytokines were also reduced. PZQ was the most efficacious for reduction in the number of worms. These results are similar to those normally obtained using PZQ.ConclusionsCrushed garlic homogenate and allicin are potential complementary treatments that may be used with PZQ.

Effect of Raw Crushed Garlic (Allium sativum L.) on Components of Metabolic Syndrome

ABSTRACTMetabolic syndrome consists of a group of risk factors characterized by abdominal obesity, hypertension, atherogenic dyslipidemia, hyperglycemia, and prothrombotic and proinflammatory conditions. Raw garlic homogenate has been reported to reduce serum lipid levels in animal model; however, no precise studies have been performed to evaluate the effect of raw crushed garlic (Allium sativum L.) on components of metabolic syndrome. Therefore, the present study was designed to investigate the effect of raw crushed garlic on components of metabolic syndrome. A total of 40 metabolic syndrome patients were randomly selected from the diabetic center of SP Medical College, Bikaner, Rajasthan, India. They underwent treatment with 100 mg/kg body weight raw crushed garlic 2 times a day with standard diet for 4 weeks; their anthropometric and serum biochemical variables were measured at both the beginning and the end of the study. Statistical analysis was performed using IBM SPSS version 20, and Student's paired “t” test was used to compare variables before and after treatment with garlic preparation. Raw crushed garlic significantly reduced components of metabolic syndrome including waist circumference (p < .05), systolic and diastolic blood pressure (p < .001), triglycerides (p < .01), fasting blood glucose (p < .0001) and significantly increased serum high-density lipoprotein cholesterol (p < .0001). There was no significant difference found in body mass index (p > .05) of patients with metabolic syndrome after consumption of raw crushed garlic for 4 weeks. Raw crushed garlic has beneficial effects on components of metabolic syndrome; therefore, it can be used as an accompanying remedy for prevention and treatment of patients with metabolic syndrome.

Effects of Phyllanthus amarus on garlic-induced hepatotoxicity

Background: One of the most important organs that regulate various physiological processes in the body is the liver. The liver, if diseased or damaged by toxic agent (s) could contribute to the cause of morbidity and mortality globally. Phyllanthus amarus is highly valued in African traditional medicine for its hepatoprotective, anti-inflammatory and several related ailments. Aim: The aim of the present study was to investigate the effects of the administration of P. amarus on garlic-induced hepatotoxicity in rats. Settings and Design: Albino rats (n = 30) weighing 170-200 g were randomly divided into five Groups (I-V) of six. Group I (control) received orally 1 ml/kg body weight of distilled water while Groups II, III, IV and V were administered orally same volume of garlic homogenate corresponding to 5 g/kg body weight on a daily basis for 14 days to induce liver toxicity. Similarly, Groups III, IV and V were orally administered with 100, 200 and 400 mg/kg body weight of P. amarus aqueous leaf extract, respectively, for another 7 days. Materials and Methods: The levels of serum alkaline phosphatase (ALP), aspartate transaminase (AST), alanine transaminase (ALT) and total bilirubin (TB) were determined by standard methods. Histopathological analysis of the liver tissue was carried out as described by Druby and Wallington. Statistical Analysis: Results were expressed as mean ± standard errors of means. Statistical analysis was performed using one-way ANOVA and Bonferroni post hoc test was used to determine the difference between means at 95% level of significance. Results: The results showed that all the doses of the extract of P. amarus significantly decreased (P Conclusion: It was concluded that P. amarus showed hepatocurative effect having ameliorated the lobular necrosis and inflammation of the liver induced by garlic homogenate in albino rats.

Garlic and Resveratrol Attenuate Diabetic Complications, Loss of β-Cells, Pancreatic and Hepatic Oxidative Stress in Streptozotocin-Induced Diabetic Rats.

The study was aimed at finding the effect of garlic and resveratrol on loss of β-cells and diabetic complication in streptozotocin (STZ)-induced Type-I diabetic rats. Rats were injected with single dose STZ (50 mg/kg, i.p.) for induction of type 1 diabetes (Dia) and compared with control group. Rats from third (Dia+Gar), fourth (Dia+Resv), and fifth (Dia+Met) groups were fed raw garlic homogenate (250 mg/kg/day), resveratrol (25 mg/kg/day), and metformin (500 mg/kg/day) orally, respectively, for a period of 4 weeks. Diabetic group had decreased serum insulin and hydrogen sulfide levels along with increased blood glucose and glycated hemoglobin, triglyceride, uric acid, and nitric oxide levels. Significant (p < 0.05) increase in pancreatic and hepatic TBARS, conjugated dienes, nitric oxide, and AGE level and significant (p < 0.05) decrease in SOD, catalase, H2S, GSH level were observed in diabetic group. Administration of garlic, resveratrol, and metformin significantly (p < 0.05) normalized most of the altered metabolic and oxidative stress parameters as well as histopathological changes. Administration of garlic, resveratrol, and metformin in diabetic rat decreases pancreatic β-cell damage and hepatic injury. Our data concluded that administration of garlic showed more promising effect in terms of reducing oxidative stress and pathological changes when compared to resveratrol and metformin groups.

Preventive effects of garlic (Allium sativum) on oxidative stress and histopathology of cardiac tissue in streptozotocin-induced diabetic rats.

Since some complications of diabetes mellitus may be caused or exacerbated by an oxidative stress, the protective effects of garlic (Allium sativum) were investigated in the blood and heart of streptozotocin-induced diabetic rats. Twenty-eight male Wistar rats were randomly divided into four groups: control, garlic, diabetic, and diabetic+garlic. Diabetes was induced by intraperitoneal (i.p.) injection of streptozotocin (50 mg/kg) in male rats. Rats were fed with raw fresh garlic homogenate (250 mg/kg) six days a week by gavage for a period of 6 weeks. At the end of the 6th week blood samples and heart tissues were collected and used for determination of glutathione peroxidase (GPx), superoxide dismutase (SOD), catalase (CAT), malondialdehyde (MDA) and histological evaluation. Induction of diabetes increased MDA levels in blood and homogenates of heart. In diabetic rats treated with garlic, MDA levels decreased in blood and heart homogenates. Treatment of diabetic rats with garlic increased SOD, GPX and CAT in blood and heart homogenates. Histopathological finding of the myocardial tissue confirmed a protective role for garlic in diabetic rats. Thus, the present study reveals that garlic may effectively modulate antioxidants status in the blood and heart of streptozotocin induced-diabetic rats.

Diallyl disulfide ameliorates isoproterenol induced cardiac hypertrophy activating mitochondrial biogenesis via eNOS-Nrf2-Tfam pathway in rats

The beneficial effect of garlic on cardiovascular disease is well known. However, the use of raw garlic against cardiac hypertrophy is not established. In the present study we explored whether raw garlic and its compound, diallyl disulfide (DADS) could inhibit hypertrophy through H2S and/or mitochondrial biogenesis. Cardiac hypertrophy was induced in rat by giving isoproterenol at the dose of 5mg/kg/day subcutaneously for 14 days through alzet minipump. Aqueous garlic homogenate, DADS and NaHS (liberate H2S) were fed to third, forth and fifth group of rats for 14 days at a dose of 250mg/kg/day, 50mg/kg/day, 14µM/kg/day respectively. Garlic and DADS reduced cardiac hypertrophy markers and normalized mitochondrial ETC-complex activities, mitochondrial enzyme activites and mitochondrial biogenetic and apoptotic genes expression. Garlic and DADS enhanced eNOS and p-AKT level in rat heart along with increased NRF2 protein level and Tfam gene expression. However, normalization was not observed after administration of NaHS which generates H2S in-vivo. In conclusion, garlic and DADS induces mitochondrial biogenesis and ameliorates cardiac hypertrophy via activation of eNOS-Nrf2-Tfam pathway in rats.

Spices and herbs in broilers nutrition: Effects of garlic (Allium sativum L.) on broiler chicken production

The aim of this review paper is to show the most important bioactive compounds of garlic (Allium sativum L.), modes of action of garlic powder and its effects on broiler chicken productive performance. Allicin is thought to be the principal bioactive compound present in aqueous garlic extract or raw garlic homogenate. When garlic is chopped or crushed, the allinase enzyme present in garlic is activated and acts on alliin to produce allicin. Other important sulphur containing compounds present in garlic are allyl methyl thiosulphonate, 1-propenyl allyl thiosulphonate and γ-L-glutamyl-S-alkyl-L-cysteine. These active compounds are thought to influence feed consumption, feed utilisation, body weight, blood lipid profiles and cholesterol levels in chickens. Biological responses to these bioactive compounds have been attributed to a reduction in risk factors for cardiovascular diseases and cancer, stimulation of immune function, enhanced detoxification of foreign compound, hepatoprotection, antimicrobial, antifungal, anti-inflammatory and antioxidant effects.

Antioxidant Activities of &lt;em&gt;Allium sativum&lt;/em&gt; on some Biochemical parameters following Ethanol Induced Lesion in the Gastric Mucosa of Adult Male Wistar Rats

This study was carried out to investigate, the protective potential of Allium sativum on the stomach following ethanol-induced mucosal lesions in Adult male wistar rats (Rattus novergicus). Twenty four Adult male Wistar rats were used in the study and divided randomly into 3 groups (8 animals in each); Group A received orally, Phosphate Buffered Saline (PBS) and served as control; groups B and C received 1.0 mL of 35% ethanol orally every 24 h and group C received freshly prepared Garlic Homogenate (FGH) (300 mg/kg/body weight) once daily one hour prior to ethanol administration. The study was for 21 days after which the animals were sacrificed following cervical dislocation and the stomach being the organ of study were excised. The excised stomach was homogenised in 5% sucrose solution for biochemical studies and there was significant increase in the level of GSH-Px of FGH treated group when compared to those treated with ethanol only. Marked increase in the level of G-6-PDH and TBARS in ethanol treated group was observed compared to FGH treated and the control groups.

Garlic attenuates cardiac oxidative stress via activation of PI3K/AKT/Nrf2-Keap1 pathway in fructose-fed diabetic rat.

BackgroundCardiovascular complication due to diabetes has remained a major cause of death. There is an urgent need to intervene the cardiac complications in diabetes by nutritional or pharmacological agents. Thus the present study was designed to find out the effectiveness of garlic on cardiac complications in insulin-resistant diabetic rats.Methods and ResultsSD rats were fed high fructose (65%) diet alone or along with raw garlic homogenate (250 mg/kg/day) or nutrient-matched (65% corn starch) control diet for 8 weeks. Fructose-fed diabetic rats showed cardiac hypertrophy, increased NFkB activity and increased oxidative stress. Administration of garlic significantly decreased (p<0.05) cardiac hypertrophy, NFkB activity and oxidative stress. Although we did not observe any changes in myocardial catalase, GSH and GPx in diabetic heart, garlic administration showed significant (p<0.05) increase in all three antioxidant/enzymes levels. Increased endogenous antioxidant enzymes and gene expression in garlic treated diabetic heart are associated with higher protein expression of Nrf2. Increased myocardial H2S levels, activation of PI3K/Akt pathway and decreased Keap levels in fructose-fed heart after garlic administration might be responsible for higher Nrf2 levels.ConclusionOur study demonstrates that raw garlic homogenate is effective in reducing cardiac hypertrophy and fructose-induced myocardial oxidative stress through PI3K/AKT/Nrf2-Keap1 dependent pathway.