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Recinella L, Chiavaroli A, Masciulli F, Fraschetti C, Filippi A, Cesa S, Cairone F, Gorica E, De Leo M, Braca A, Martelli A, Calderone V, Orlando G, Ferrante C, Menghini L, Di Simone SC, Veschi S, Cama A, Brunetti L, Leone S. Protective Effects Induced by a Hydroalcoholic Allium sativum Extract in Isolated Mouse Heart. Nutrients 2021; 13:nu13072332. [PMID: 34371842 PMCID: PMC8308751 DOI: 10.3390/nu13072332] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/28/2021] [Accepted: 07/05/2021] [Indexed: 12/12/2022] Open
Abstract
The aim of the present study was to investigate the possible protective effects of a garlic hydroalcoholic extract on the burden of oxidative stress and inflammation occurring on mouse heart specimens exposed to E. coli lipopolysaccharide (LPS), which is a well-established inflammatory stimulus. Headspace solid-phase microextraction combined with the gas chromatography-mass spectrometry (HS-SPME/GC-MS) technique was applied to determine the volatile fraction of the garlic powder, and the HS-SPME conditions were optimized for each of the most representative classes of compounds. CIEL*a*b* colorimetric analyses were performed on the powder sample at the time of delivery, after four and after eight months of storage at room temperature in the dark, to evaluate the color changing. Freshly prepared hydroalcoholic extract was also evaluated in its color character. Furthermore, the hydroalcoholic extract was analyzed through GC-MS. The extract was found to be able to significantly inhibit LPS-induced prostaglandin (PG) E2 and 8-iso-PGF2α levels, as well as mRNA levels of cyclooxygenase (COX)-2, interleukin (IL)-6, and nuclear factor-kB (NF-kB), in heart specimens. Concluding, our findings showed that the garlic hydroalcoholic extract exhibited cardioprotective effects on multiple inflammatory and oxidative stress pathways.
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Affiliation(s)
- Lucia Recinella
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Annalisa Chiavaroli
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Fabrizio Masciulli
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Caterina Fraschetti
- Department of Drug Chemistry and Technology, Sapienza University of Rome, 00185 Rome, Italy; (C.F.); (A.F.); (S.C.); (F.C.)
| | - Antonello Filippi
- Department of Drug Chemistry and Technology, Sapienza University of Rome, 00185 Rome, Italy; (C.F.); (A.F.); (S.C.); (F.C.)
| | - Stefania Cesa
- Department of Drug Chemistry and Technology, Sapienza University of Rome, 00185 Rome, Italy; (C.F.); (A.F.); (S.C.); (F.C.)
| | - Francesco Cairone
- Department of Drug Chemistry and Technology, Sapienza University of Rome, 00185 Rome, Italy; (C.F.); (A.F.); (S.C.); (F.C.)
| | - Era Gorica
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (E.G.); (M.D.L.); (A.B.); (A.M.); (V.C.)
| | - Marinella De Leo
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (E.G.); (M.D.L.); (A.B.); (A.M.); (V.C.)
- Interdepartmental Research Center “Nutrafood: Nutraceutica e Alimentazione per la Salute”, University of Pisa, 56126 Pisa, Italy
- CISUP, Centre for Instrumentation Sharing of Pisa University, 56126 Pisa, Italy
| | - Alessandra Braca
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (E.G.); (M.D.L.); (A.B.); (A.M.); (V.C.)
- Interdepartmental Research Center “Nutrafood: Nutraceutica e Alimentazione per la Salute”, University of Pisa, 56126 Pisa, Italy
- CISUP, Centre for Instrumentation Sharing of Pisa University, 56126 Pisa, Italy
| | - Alma Martelli
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (E.G.); (M.D.L.); (A.B.); (A.M.); (V.C.)
- Interdepartmental Research Center “Nutrafood: Nutraceutica e Alimentazione per la Salute”, University of Pisa, 56126 Pisa, Italy
- Interdepartmental Research Center “Biology and Pathology of Ageing”, University of Pisa, 56126 Pisa, Italy
| | - Vincenzo Calderone
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (E.G.); (M.D.L.); (A.B.); (A.M.); (V.C.)
- Interdepartmental Research Center “Nutrafood: Nutraceutica e Alimentazione per la Salute”, University of Pisa, 56126 Pisa, Italy
- Interdepartmental Research Center “Biology and Pathology of Ageing”, University of Pisa, 56126 Pisa, Italy
| | - Giustino Orlando
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Claudio Ferrante
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Luigi Menghini
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Simonetta Cristina Di Simone
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Serena Veschi
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Alessandro Cama
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
| | - Luigi Brunetti
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
- Correspondence: ; Tel.: +39-0871-3554758
| | - Sheila Leone
- Department of Pharmacy, G. d’Annunzio University of Chieti-Pescara, 66013 Chieti, Italy; (L.R.); (A.C.); (F.M.); (G.O.); (C.F.); (L.M.); (S.C.D.S.); (S.V.); (A.C.); (S.L.)
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Chen WD, Song T, Cao QH, Li R, Wang H, Chen XB, Chen ZT. Atherosclerosis prediction by microarray-based DNA methylation analysis. Exp Ther Med 2020; 20:2863-2869. [PMID: 32765783 DOI: 10.3892/etm.2020.9025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 04/29/2020] [Indexed: 12/23/2022] Open
Abstract
Using a series of DNA methylation analysis, pathogenesis was investigated to identify the specific DNA methylation markers for diagnosing atherosclerosis. Firstly, with the chip platform of Illumina Human Methylation 450 BeadChip, a total of 1,458 CpGs, covering 971 differential methylated genes were extracted with stringent filtering criteria. Secondly, hierarchical clustering as a heat map was used to check on the dependability of differential methylated genes. Thirdly, the related GO terms and pathways were enriched by up- and down-methylated genes, respectively, after verifying the capacity of these differential methylated genes to distinguish between atherosclerosis and healthy controls. In total, 971 differential DNA methylated genes were identified (1,458 CpGs). Several important function regions were also identified, including cell adhesion, PI3K-Akt signaling pathway and transcription from RNA polymerase II promoter. This study indicates that patients with atherosclerosis have high levels of DNA methylation, which is promising for early diagnosis and treatment of atherosclerosis.
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Affiliation(s)
- Wei-da Chen
- Health Care Department, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China.,Health Care Department, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250011, P.R. China
| | - Ting Song
- Health Care Department, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250011, P.R. China
| | - Qiu-Hong Cao
- Department of Anesthesiology, Jinan Center Hospital, Jinan, Shandong 250013, P.R. China
| | - Rui Li
- Health Care Department, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250011, P.R. China
| | - Hua Wang
- Health Care Department, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250011, P.R. China
| | - Xiu-Bao Chen
- Health Care Department, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250011, P.R. China
| | - Ze-Tao Chen
- Health Care Department, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250011, P.R. China
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Lakshmanan S, Rezvanizadeh V, Budoff MJ. Comprehensive plaque assessment with serial coronary CT angiography: translation to bedside. Int J Cardiovasc Imaging 2020; 36:2335-46. [DOI: 10.1007/s10554-020-01849-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 04/09/2020] [Indexed: 12/24/2022]
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El-Saber Batiha G, Magdy Beshbishy A, G. Wasef L, Elewa YHA, A. Al-Sagan A, Abd El-Hack ME, Taha AE, M. Abd-Elhakim Y, Prasad Devkota H. Chemical Constituents and Pharmacological Activities of Garlic ( Allium sativum L.): A Review. Nutrients 2020; 12:E872. [PMID: 32213941 PMCID: PMC7146530 DOI: 10.3390/nu12030872] [Citation(s) in RCA: 253] [Impact Index Per Article: 63.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/09/2020] [Accepted: 03/12/2020] [Indexed: 12/23/2022] Open
Abstract
Medicinal plants have been used from ancient times for human healthcare as in the form of traditional medicines, spices, and other food components. Garlic (Allium sativum L.) is an aromatic herbaceous plant that is consumed worldwide as food and traditional remedy for various diseases. It has been reported to possess several biological properties including anticarcinogenic, antioxidant, antidiabetic, renoprotective, anti-atherosclerotic, antibacterial, antifungal, and antihypertensive activities in traditional medicines. A. sativum is rich in several sulfur-containing phytoconstituents such as alliin, allicin, ajoenes, vinyldithiins, and flavonoids such as quercetin. Extracts and isolated compounds of A. sativum have been evaluated for various biological activities including antibacterial, antiviral, antifungal, antiprotozoal, antioxidant, anti-inflammatory, and anticancer activities among others. This review examines the phytochemical composition, pharmacokinetics, and pharmacological activities of A. sativum extracts as well as its main active constituent, allicin.
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Affiliation(s)
- Gaber El-Saber Batiha
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Nishi 2-13, Inada-cho, Obihiro, Hokkaido 080-8555, Japan;
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, AlBeheira, Egypt;
| | - Amany Magdy Beshbishy
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Nishi 2-13, Inada-cho, Obihiro, Hokkaido 080-8555, Japan;
| | - Lamiaa G. Wasef
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, AlBeheira, Egypt;
| | - Yaser H. A. Elewa
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt;
- Laboratory of Anatomy, Department of Biomedical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido 060-0818, Japan
| | - Ahmed A. Al-Sagan
- King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh 11442, Saudi Arabia;
| | - Mohamed E. Abd El-Hack
- Department of Poultry, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt;
| | - Ayman E. Taha
- Department of Animal Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, Alexandria University, Edfina 22578, Egypt;
| | - Yasmina M. Abd-Elhakim
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt;
| | - Hari Prasad Devkota
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto City, Kumamoto, 862-0973, Japan;
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Sobenin IA, Myasoedova VA, Iltchuk MI, Zhang DW, Orekhov AN. Therapeutic effects of garlic in cardiovascular atherosclerotic disease. Chin J Nat Med 2020; 17:721-728. [PMID: 31703752 DOI: 10.1016/s1875-5364(19)30088-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Indexed: 12/27/2022]
Abstract
Garlic (Allium sativum) is a widely known medicinal plant, potential of which remains to be fully evaluated. Its wide-range beneficial effects appear to be relevant for treatment and prevention of atherosclerosis and related diseases. It is generally believed that garlic-based preparations are able to improve lipid profile in humans, inhibit cholesterol biosynthesis, suppress low density lipoprotein oxidation, modulate blood pressure, suppress platelet aggregation, lower plasma fibrinogen level and increase fibrinolytic activity, thus providing clinically relevant cardioprotective and anti-atherosclerotic effects. It is important to assess the level of evidence available for different protective effects of garlic and to understand the underlying mechanisms. This information will allow adequate integration of garlic-based preparations to clinical practice. In this review, we discuss the mechanisms of anti-atherosclerotic effects of garlic preparations, focusing on antihyperlipidemic, hypotensive, anti-platelet and direct anti-atherosclerotic activities of the medicinal plant. We also provide an overview of available meta-analyses and a number of clinical trials that assess the beneficial effects of garlic.
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Affiliation(s)
- Igor A Sobenin
- National Medical Research Center of Cardiology, 121552 Moscow, Russian Federation; Institute of General Pathology and Pathophysiology, 125315 Moscow, Russian Federation; Research Institute of Threpsology and Healthy Longevity, Plekhanov Russian University of Economics, 117997 Moscow, Russian Federation
| | - Veronika A Myasoedova
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russian Federation
| | - Maria I Iltchuk
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russian Federation
| | - Dong-Wei Zhang
- Diabetes Research Center, Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Alexander N Orekhov
- Institute of General Pathology and Pathophysiology, 125315 Moscow, Russian Federation; Institute of Human Morphology, 117418 Moscow, Russian Federation.
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Yamaguchi Y, Honma R, Yazaki T, Shibuya T, Sakaguchi T, Uto-Kondo H, Kumagai H. Sulfuric Odor Precursor S-Allyl-l-Cysteine Sulfoxide in Garlic Induces Detoxifying Enzymes and Prevents Hepatic Injury. Antioxidants (Basel) 2019; 8:antiox8090385. [PMID: 31509980 PMCID: PMC6769545 DOI: 10.3390/antiox8090385] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 09/07/2019] [Accepted: 09/08/2019] [Indexed: 12/24/2022] Open
Abstract
S-Allyl-l-cysteine sulfoxide (ACSO) is a precursor of garlic-odor compounds like diallyl disulfide (DADS) and diallyl trisulfide (DATS) known as bioactive components. ACSO has suitable properties as a food material because it is water-soluble, odorless, tasteless and rich in bulbs of fresh garlic. The present study was conducted to examine the preventive effect of ACSO on hepatic injury induced by CCl4 in rats. ACSO, its analogs and garlic-odor compounds were each orally administered via gavage for five consecutive days before inducing hepatic injury. Then, biomarkers for hepatic injury and antioxidative state were measured. Furthermore, we evaluated the absorption and metabolism of ACSO in the small intestine of rats and NF-E2-related factor 2 (Nrf2) nuclear translocation by ACSO using HepG2 cells. As a result, ACSO, DADS and DATS significantly suppressed the increases in biomarkers for hepatic injury such as the activities of aspartate transaminase (AST), alanine transaminase (ALT) and lactate dehydrogenase (LDH), and decreases in antioxidative potency such as glutathione (GSH) level and the activities of glutathione S-transferase (GST) and glutathione peroxidase (GPx). We also found ACSO was absorbed into the portal vein from the small intestine but partially metabolized to DADS probably in the small intestine. In in vitro study, ACSO induced Nrf2 nuclear translocation in HepG2 cells, which is recognized as an initial trigger to induce antioxidative and detoxifying enzymes. Taken together, orally administered ACSO probably reached the liver and induced antioxidative and detoxifying enzymes by Nrf2 nuclear translocation, resulting in prevention of hepatic injury. DADS produced by the metabolism of ACSO in the small intestine might also have contributed to the prevention of hepatic injury. These results suggest potential use of ACSO in functional foods that prevent hepatic injury and other diseases caused by reactive oxygen species (ROS).
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Affiliation(s)
- Yusuke Yamaguchi
- Department of Chemistry and Life Science, Nihon University, 1866 Kameino, Fujisawa-shi 252-0880, Japan.
| | - Ryosuke Honma
- Department of Chemistry and Life Science, Nihon University, 1866 Kameino, Fujisawa-shi 252-0880, Japan.
| | - Tomoaki Yazaki
- Department of Chemistry and Life Science, Nihon University, 1866 Kameino, Fujisawa-shi 252-0880, Japan.
| | - Takeshi Shibuya
- Department of Chemistry and Life Science, Nihon University, 1866 Kameino, Fujisawa-shi 252-0880, Japan.
| | - Tomoya Sakaguchi
- Department of Chemistry and Life Science, Nihon University, 1866 Kameino, Fujisawa-shi 252-0880, Japan.
| | - Harumi Uto-Kondo
- Department of Bioscience in Daily Life, Nihon University, 1866 Kameino, Fujisawa-shi 252-0880, Japan.
| | - Hitomi Kumagai
- Department of Chemistry and Life Science, Nihon University, 1866 Kameino, Fujisawa-shi 252-0880, Japan.
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Zeb I, Ahmadi N, Flores F, Budoff MJ. Randomized trial evaluating the effect of aged garlic extract with supplements versus placebo on adipose tissue surrogates for coronary atherosclerosis progression. Coron Artery Dis 2018; 29:325-8. [PMID: 29140808 DOI: 10.1097/MCA.0000000000000587] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
AIMS Increased epicardial adipose tissue (EAT), pericardial adipose tissue (PAT), periaortic adipose tissue (PaAT), and subcutaneous adipose tissue (SAT) are mediators of metabolic risk, and are associated with the severity of coronary artery calcium (CAC). Aged garlic extract (AGE) has been shown to reduce the progression of coronary atherosclerosis. This study evaluates the effect of AGE with supplements (AGE+S) on EAT, PAT, SAT, and PaAT. METHODS Sixty asymptomatic participants participated in a randomized trial evaluating the effect of AGE+S versus placebo on coronary atherosclerosis progression, and underwent CAC at baseline and after 12 months of treatment. EAT, PAT, PaAT, and SAT volumes were measured on CAC scans. PAT was calculated as: intrathoracic adipose tissue-EAT. SAT was defined as the volume of fat depot anterior to the sternum and posterior to the vertebra. PaAT was defined as fat depot around the descending aorta. RESULTS At 1 year, the increase in EAT, PAT, PaAT, and SAT was significantly lower in the AGE+S as compared with the placebo group (P<0.05). The odds ratios of increase in EAT, PAT, PaAT, and SAT were 0.63 [95% confidence interval (CI): 0.43-0.90], 0.72 (95% CI: 0.45-0.93), 0.81 (95% CI: 0.65-0.98), and 0.87 (CI: 0.52-0.98), respectively, compared with the placebo group, which even remained significant (all P<0.05) after adjustment for cardiovascular risk factors and statin therapy and BMI. CONCLUSION This study shows that AGE+S is associated with favorable effects on reducing the progression rate of adipose tissue volumes.
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Abstract
Metabolic 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.
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Affiliation(s)
- Prema Ram Choudhary
- a Department of Physiology , CU Shah Medical College , Surendranagar Gujarat , India
| | - Rameshchandra D Jani
- a Department of Physiology , CU Shah Medical College , Surendranagar Gujarat , India
| | - Megh Shyam Sharma
- b Department of Physiology , R N T Medical College Udaipur , Rajasthan , India
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Lima PRDS, Bandeira FCV, Rolim JC, Nogueira MRS, Pordeus MAA, de Oliveira AFB, Pitta GBB. Allium sativum Compared to Cilostazol as an Inhibitor of Myointimal Hyperplasia. Braz J Cardiovasc Surg 2016; 31:291-299. [PMID: 27849301 PMCID: PMC5094421 DOI: 10.5935/1678-9741.20160069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Accepted: 06/08/2016] [Indexed: 11/20/2022] Open
Abstract
Objective Intimal hyperplasia is associated with graft failure and vascular sutures in the first
year after surgery and in postangioplasty restenosis. Allium sativum
(common garlic) lowers cholesterol and has antioxidant effects; it also has antiplatelet
and antitumor properties and, therefore, has great potential to reduce or inhibit
intimal hyperplasia of the arteries. Our objective is to determine if the garlic has an
efficacy to inhibit myointimal hyperplasia compared to cilostazol. Methods Female New Zealand rabbits were divided into the following groups (n=10 each) according
to treatment: group A, garlic, 800
µg×kg-1×day-1, orally; group C, cilostazol,
50 mg.day-1, orally; group PS, 10 ml of 0.9% physiological saline solution,
orally. Our primary is the difference of the mean of myointimal hyperplasia. Statistical
analysis was performed by using ANOVA and Tukey tests, as well as the Chi-square test.
We calculated the 95% confidence interval for each point estimate, and the
P value was set as < 0.05. Results Group PS had a mean hyperplasia rate of 35.74% (95% CI, 31.76–39.71%); group C, 16.21%
(95% CI, 13.36–19.05%); and group A, 21.12% (95% CI, 17.26–25.01%);
P<0.0001. Conclusion We conclude that Allium sativum had the same efficacy in inhibiting
myointimal hyperplasia when compared to the positive control, cilostazol.
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Affiliation(s)
- Paulo Roberto da Silva Lima
- Federal University of Alagoas (UFAL), Maceió, AL, Brazil and Centro de Angiologia e Cirurgia Vascular (Ceangio), João Pessoa, PB, Brazil
| | | | - Janio Cipriano Rolim
- Vascular surgery in the Emergency Hospital and Trauma Dom Luiz Gonzaga Fernandes, Campina Grande, PB, Brazil
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Abstract
The metabolic syndrome is a common problem world-wide and includes abdominal obesity, hypertension, dyslipidemia, and hyperglycemia disorders. It leads to insulin resistance and the development of diabetes mellitus or cardiovascular disease. Allium sativum (garlic) has been documented to exhibit anti-diabetic, hypotensive, and hypolipidemic properties. This suggests a potential role of A. sativum in the management of metabolic syndrome; however, more studies should be conducted to evaluate its effectiveness. In this review, we discussed the most relevant articles to find out the role of A. sativum in different components of metabolic syndrome and cardiovascular disease risk factors. Because human reports are rare, further studies are required to establish the clinical value of A. sativum in metabolic syndrome.
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Affiliation(s)
- A Hosseini
- Pharmacological Research Center of Medicinal Plants, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - H Hosseinzadeh
- Pharmaceutical Research Center, Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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Abstract
Formation of foam cells is a hallmark at the initial stages of atherosclerosis. Monocytes attracted by pro-inflammatory stimuli attach to the inflamed vascular endothelium and penetrate to the arterial intima where they differentiate to macrophages. Intimal macrophages phagocytize oxidized low-density lipoproteins (oxLDL). Several scavenger receptors (SR), including CD36, SR-A1 and lectin-like oxLDL receptor-1 (LOX-1), mediate oxLDL uptake. In late endosomes/lysosomes of macrophages, oxLDL are catabolysed. Lysosomal acid lipase (LAL) hydrolyses cholesterol esters that are enriched in LDL to free cholesterol and free fatty acids. In the endoplasmic reticulum (ER), acyl coenzyme A: cholesterol acyltransferase-1 (ACAT1) in turn catalyses esterification of cholesterol to store cholesterol esters as lipid droplets in the ER of macrophages. Neutral cholesteryl ester hydrolases nCEH and NCEH1 are involved in a secondary hydrolysis of cholesterol esters to liberate free cholesterol that could be then out-flowed from macrophages by cholesterol ATP-binding cassette (ABC) transporters ABCA1 and ABCG1 and SR-BI. In atherosclerosis, disruption of lipid homoeostasis in macrophages leads to cholesterol accumulation and formation of foam cells.
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Affiliation(s)
- Dimitry A Chistiakov
- Division of Laboratory Medicine, Department of Molecular Genetic Diagnostics and Cell Biology, Institute of Pediatrics, Research Center for Children's Health, Moscow, Russia
| | - Yuri V Bobryshev
- Faculty of Medicine and St Vincent's Centre for Applied Medical Research, University of New South Wales, Sydney, NSW, Australia.,School of Medicine, University of Western Sydney, Campbelltown, NSW, Australia.,Institute for Atherosclerosis Research, Skolkovo Innovative Center, Moscow, Russia
| | - Alexander N Orekhov
- Institute for Atherosclerosis Research, Skolkovo Innovative Center, Moscow, Russia.,Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Sciences, Moscow, Russia.,Department of Biophysics, Biological Faculty, Moscow State University, Moscow, Russia
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Wu C, Chen R, Liu M, Liu D, Li X, Wang S, Niu S, Guo P, Lin W. Spiromastixones Inhibit Foam Cell Formation via Regulation of Cholesterol Efflux and Uptake in RAW264.7 Macrophages. Mar Drugs 2015; 13:6352-65. [PMID: 26473890 DOI: 10.3390/md13106352] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 09/29/2015] [Accepted: 09/29/2015] [Indexed: 11/18/2022] Open
Abstract
Bioassay-guided evaluation shows that a deep sea-derived fungus, Spiromastix sp. MCCC 3A00308, possesses lipid-lowering activity. Chromatographic separation of a culture broth resulted in the isolation of 15 known depsidone-based analogues, labeled spiromastixones A–O (1–15). Each of these compounds was tested for its ability to inhibit oxidized low-density lipoprotein (oxLDL)-induced foam cell formation in RAW264.7 macrophages. Spiromastixones 6–8 and 12–14 significantly decreased oxLDL-induced lipid over-accumulation, reduced cell surface area, and reduced intracellular cholesterol concentration. Of these compounds, spiromastixones 6 and 14 exerted the strongest inhibitory effects. Spiromastixones 6 and 14 dramatically inhibited cholesterol uptake and stimulated cholesterol efflux to apolipoprotein A1 (ApoA1) and high-density lipoprotein (HDL) in RAW264.7 macrophages. Mechanistic investigation indicated that spiromastixones 6, 7, 12 and 14 significantly up-regulated the mRNA levels of ATP-binding cassette sub-family A1 (ABCA1) and down-regulated those of scavenger receptor CD36, while the transcription of ATP-binding cassette sub-family A1 (ABCG1) and proliferator-activated receptor gamma (PPARγ) were selectively up-regulated by 6 and 14. A transactivation reporter assay revealed that spiromastixones 6 and 14 remarkably enhanced the transcriptional activity of PPARγ. These results suggest that spiromastixones inhibit foam cell formation through upregulation of PPARγ and ABCA1/G1 and downregulation of CD36, indicating that spiromastixones 6 and 14 are promising lead compounds for further development as anti-atherogenic agents.
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Hemn HO, Noordin MM, Rahman HS, Hazilawati H, Zuki A, Chartrand MS. Antihypercholesterolemic and antioxidant efficacies of zerumbone on the formation, development, and establishment of atherosclerosis in cholesterol-fed rabbits. Drug Des Devel Ther 2015; 9:4173-208. [PMID: 26347047 PMCID: PMC4529258 DOI: 10.2147/dddt.s76225] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Owing to the high incidence of cholesterol-induced cardiovascular disease, particularly atherosclerosis, the current study was designed to investigate the preventive and therapeutic efficacies of dietary zerumbone (ZER) supplementation on the formation and development of atherosclerosis in rabbits fed with a high cholesterol diet. A total of 72 New Zealand white rabbits were divided randomly on two experimental studies carried out 8 weeks apart. The first experiment was designed to investigate the prophylactic efficacy of ZER in preventing early developed atheromatous lesion. The second experimental trial was aimed at investigating the therapeutic effect of ZER in reducing the atherosclerotic lesion progression and establishment. Sudanophilia, histopathological, and ultrastructural changes showed pronounced reduction in the plaque size in ZER-medicated aortas. On the other hand, dietary supplementation of ZER for almost 10 weeks as a prophylactic measure indicated substantially decreasing lipid profile values, and similarly, plaque size in comparison with high-cholesterol non-supplemented rabbits. Furthermore, the results of oxidative stress and antioxidant biomarker evaluation indicated that ZER is a potent antioxidant in suppressing the generation of free radicals in terms of atherosclerosis prevention and treatment. ZER significantly reduced the value of malondialdehyde and augmented the value of superoxide dismutase. In conclusion, our data indicated that dietary supplementation of ZER at doses of 8, 16, and 20 mg/kg alone as a prophylactic measure, and as a supplementary treatment with simvastatin, significantly reduced early plague formation, development, and establishment via significant reduction in serum lipid profile, together with suppression of oxidative damage, and therefore alleviated atherosclerosis lesions.
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Affiliation(s)
- Hassan Othman Hemn
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia ; College of Veterinary Medicine, University of Sulaimani, Sulaimani City, Kurdistan, Republic of Iraq
| | - Muhammad Mustapha Noordin
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Heshu Sulaiman Rahman
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia ; College of Veterinary Medicine, University of Sulaimani, Sulaimani City, Kurdistan, Republic of Iraq
| | - Hamza Hazilawati
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Abubakr Zuki
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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14
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Arreola R, Quintero-Fabián S, López-Roa RI, Flores-Gutiérrez EO, Reyes-Grajeda JP, Carrera-Quintanar L, Ortuño-Sahagún D. Immunomodulation and anti-inflammatory effects of garlic compounds. J Immunol Res 2015; 2015:401630. [PMID: 25961060 DOI: 10.1155/2015/401630] [Citation(s) in RCA: 163] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 01/24/2015] [Accepted: 01/25/2015] [Indexed: 01/01/2023] Open
Abstract
The benefits of garlic to health have been proclaimed for centuries; however, only recently have Allium sativum and its derivatives been proposed as promising candidates for maintaining the homeostasis of the immune system. The complex biochemistry of garlic makes it possible for variations in processing to yield different preparations with differences in final composition and compound proportion. In this review, we assess the most recent experimental results, which indicate that garlic appears to enhance the functioning of the immune system by stimulating certain cell types, such as macrophages, lymphocytes, natural killer (NK) cells, dendritic cells, and eosinophils, by mechanisms including modulation of cytokine secretion, immunoglobulin production, phagocytosis, and macrophage activation. Finally, because immune dysfunction plays an important role in the development and progress of several diseases, we critically examined immunoregulation by garlic extracts and compounds isolated, which can contribute to the treatment and prevention of pathologies such as obesity, metabolic syndrome, cardiovascular disorders, gastric ulcer, and even cancer. We concluded that A. sativum modulates cytokine secretion and that such modulation may provide a mechanism of action for many of their therapeutic effects.
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15
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Xiong XJ, Wang PQ, Li SJ, Li XK, Zhang YQ, Wang J. Garlic for hypertension: A systematic review and meta-analysis of randomized controlled trials. Phytomedicine 2015; 22:352-361. [PMID: 25837272 DOI: 10.1016/j.phymed.2014.12.013] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 12/26/2014] [Accepted: 12/30/2014] [Indexed: 06/04/2023]
Abstract
BACKGROUND In the past decade, garlic has become one of the most popular complementary therapies for blood pressure (BP) control used by hypertensive patients. Numerous clinical studies have focused on the BP-lowering effect of garlic, but results have been inconsistent. Overall, there is a dearth of information available to guide the clinical community on the efficacy of garlic in hypertensive patients. AIM To systematically review the medical literature to investigate the current evidence of garlic for the treatment of hypertension. METHODS PubMed, the Cochrane Library and EMBASE were searched for appropriate articles from their respective inceptions until August 2014. Randomized, placebo-controlled trials comparing garlic vs. a placebo in patients with hypertension were considered. Papers were independently reviewed by two reviewers and were analyzed using Cochrane software Revman 5.2. RESULTS A total of seven randomized, placebo-controlled trials were identified. Compared with the placebo, this meta-analysis revealed a significant lowering effect of garlic on both systolic BP (WMD: -6.71 mmHg; 95% CI: -12.44 to -0.99; P = 0.02) and diastolic BP (WMD: -4.79 mmHg; 95% CI: -6.60 to -2.99; P < 0.00001). No serious adverse events were reported in any of the trials. CONCLUSION The present review suggests that garlic is an effective and safe approach for hypertension. However, more rigorously designed randomized controlled trials focusing on primary endpoints with long-term follow-up are still warranted before garlic can be recommended to treat hypertensive patients.
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Affiliation(s)
- X J Xiong
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
| | - P Q Wang
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - S J Li
- Department of Biological Science and Technology, School of Life Sciences, Tsinghua University, Beijing, China
| | - X K Li
- Bio-organic and Natural Products Laboratory, McLean Hospital, Harvard Medical School, Belmont, MA, USA
| | - Y Q Zhang
- Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada
| | - J Wang
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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Qureshi MJ, Mallikarjun C, Kian WG. Enhancement of solubility and therapeutic potential of poorly soluble lovastatin by SMEDDS formulation adsorbed on directly compressed spray dried magnesium aluminometasilicate liquid loadable tablets: A study in diet induced hyperlipidemic rabbits. Asian J Pharm Sci 2015; 10:40-56. [DOI: 10.1016/j.ajps.2014.08.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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17
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Jiang X, Lu Y, Tan C, -Liang Y, Cui B. Combination of aqueous two-phase extraction and cation-exchange chromatography: New strategies for separation and purification of alliin from garlic powder. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 957:60-7. [DOI: 10.1016/j.jchromb.2014.02.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Accepted: 02/22/2014] [Indexed: 11/23/2022]
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18
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Abstract
At least 468 individual genes have been manipulated by molecular methods to study their effects on the initiation, promotion, and progression of atherosclerosis. Most clinicians and many investigators, even in related disciplines, find many of these genes and the related pathways entirely foreign. Medical schools generally do not attempt to incorporate the relevant molecular biology into their curriculum. A number of key signaling pathways are highly relevant to atherogenesis and are presented to provide a context for the gene manipulations summarized herein. The pathways include the following: the insulin receptor (and other receptor tyrosine kinases); Ras and MAPK activation; TNF-α and related family members leading to activation of NF-κB; effects of reactive oxygen species (ROS) on signaling; endothelial adaptations to flow including G protein-coupled receptor (GPCR) and integrin-related signaling; activation of endothelial and other cells by modified lipoproteins; purinergic signaling; control of leukocyte adhesion to endothelium, migration, and further activation; foam cell formation; and macrophage and vascular smooth muscle cell signaling related to proliferation, efferocytosis, and apoptosis. This review is intended primarily as an introduction to these key signaling pathways. They have become the focus of modern atherosclerosis research and will undoubtedly provide a rich resource for future innovation toward intervention and prevention of the number one cause of death in the modern world.
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Affiliation(s)
- Paul N Hopkins
- Cardiovascular Genetics, Department of Internal Medicine, University of Utah, Salt Lake City, Utah, USA.
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19
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Ueda H, Takeuchi A, Wako T. Activation of immune responses in mice by an oral administration of bunching onion (Allium fistulosum) mucus. Biosci Biotechnol Biochem 2013; 77:1809-13. [PMID: 24018671 DOI: 10.1271/bbb.130084] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Bunching onion [Allium fistulosum L. (Liliaceae)] secretes mucus in the cavities of its green leaves. The effects of the mucus, which is consumed as food, were examined. The mucus augmented the production of tumor necrosis factor (TNF)-α and monocyte chemotactic protein (MCP)-1 from RAW 264 cells and of interleukin (IL)-12 from J774.1 cells; however, extracts from green leaves and white sheaths did not. An oral administration of this mucus to mice augmented the immune functions of peritoneal cells by increasing TNF-α and IL-12 production and phagocytosis. It also augmented interferon (IFN)-γ production from spleen cells and natural killer (NK) activity. These results suggest that an oral administration of the A. fistulosum mucus can enhance natural immunity.
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20
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Liu DS, Gao W, Liang ES, Wang SL, Lin WW, Zhang WD, Jia Q, Guo RC, Zhang JD. Effects of allicin on hyperhomocysteinemia-induced experimental vascular endothelial dysfunction. Eur J Pharmacol 2013; 714:163-9. [PMID: 23792140 DOI: 10.1016/j.ejphar.2013.05.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2012] [Revised: 05/17/2013] [Accepted: 05/30/2013] [Indexed: 01/01/2023]
Abstract
This study was designed to investigate the effect and mechanism of allicin on hyperhomocysteinemia-induced experimental vascular endothelial dysfunction in rats. Fifty male Wistar rats were randomly divided into five groups: the normal control rats (NC), the high-methionine-diet rats (Met), the high-methionine-diet rats treated with folic acid, vitaminB₆ and vitaminB₁₂ (Met+F), or with low-dose allicin (Met+L), or with high-dose allicin (Met+H). After 6 weeks, we collected blood samples of all groups to determine plasma endothelin (ET), serum homocysteine (Hcy), nitric oxide (NO), superoxide dismutase (SOD), malondialdehyde (MDA), and detected the expression of basic fibroblast growth factors (bFGF), transforming growth factor beta (TGF-β), tumor necrosis factor-alpha (TNF-α), and intercellular adhesion molecule-1 (ICAM-1) in the aorta. The Hcy and the expression of TGF-β in both the Met+L and Met+H groups were significantly lower than the Met and Met+F groups. The ET, ET/NO ratio and the MDA levels of the Met+L and Met+H groups were significantly lower than the Met group. The SOD and NO levels and the expression of bFGF, TNF-α and ICAM-1 of the Met+L and Met+H groups were significantly higher than the Met group. Our data indicate that allicin inhibits lipid peroxidation induced by hyperhomocysteinemia and regulates the excretion and equilibrium of ET and NO, and suggest that allicin might be useful in the prevention of endothelial dysfunction caused by hyperhomocysteinemia.
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Affiliation(s)
- De-shan Liu
- Department of Traditional Chinese Medicine, Qilu Hospital of Shandong University, Jinan 250012, PR China.
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21
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Choi S, Park MS, Lee YR, Lee YC, Kim TW, Do SG, Kim DS, Jeon BH. A standardized bamboo leaf extract inhibits monocyte adhesion to endothelial cells by modulating vascular cell adhesion protein-1. Nutr Res Pract 2013; 7:9-14. [PMID: 23422838 PMCID: PMC3572229 DOI: 10.4162/nrp.2013.7.1.9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Revised: 11/23/2012] [Accepted: 12/07/2012] [Indexed: 01/17/2023] Open
Abstract
Bamboo leaves (Phyllostachys pubescens Mazel ex J. Houz (Poacea)) have a long history of food and medical applications in Asia, including Japan and Korea. They have been used as a traditional medicine for centuries. We investigated the mechanism of anti-inflammatory activity of a bamboo leaf extract (BLE) on tumor necrosis factor-alpha (TNF-α)-induced monocyte adhesion in human umbilical vein endothelial cells (HUVECs). Exposure of HUVECs to BLE did not inhibit cell viability or cause morphological changes at concentrations ranging from 1 µg/ml to 1 mg/ml. Treatment with 0.1 mg/ml BLE caused 63% inhibition of monocyte adhesion in TNF-α-activated HUVECs, which was associated with 38.4% suppression of vascular cell adhesion molecule-1 expression. Furthermore, TNF-α-induced reactive oxygen species generation was decreased to 47.9% in BLE treated TNF-α-activated HUVECs. BLE (0.05 mg/ml) also caused about 50% inhibition of interleukin-6 secretion from lipopolysaccharide-stimulated monocyte. The results indicate that BLE may be clinically useful as an anti-inflammatory or anti-oxidant for human cardiovascular disease including atherosclerosis.
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Affiliation(s)
- Sunga Choi
- Infectious Signaling Network Research Center and Research Institute for Medical Sciences, Department of Physiology, School of Medicine, Chungnam National University, 6 Munhwa-dong, Jung-gu, Daejeon 301-747, Korea
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Weiss N, Papatheodorou L, Morihara N, Hilge R, Ide N. Aged garlic extract restores nitric oxide bioavailability in cultured human endothelial cells even under conditions of homocysteine elevation. J Ethnopharmacol 2013; 145:162-7. [PMID: 23127645 DOI: 10.1016/j.jep.2012.10.045] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 10/05/2012] [Accepted: 10/24/2012] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Supplementation with aged garlic extract (AGE) has been shown to restore impaired endothelium-dependent vasodilator response in subjects with acutely elevated plasma homocysteine (Hcy) levels after an oral methionine load and in patients with chronic coronary artery disease. Moreover, AGE has been shown to inhibit the progression of coronary calcifications in patients with coronary artery disease. The molecular mechanisms, by which AGE preserves endothelial function is unknown. Our objective was to explore whether AGE preserves endothelial nitric oxide (NO) output even under conditions of elevated Hcy levels by preventing oxidative inactivation of the NO synthase cofactor tetrahydrobiopterin. MATERIAL AND METHODS Endothelial (EA.hy 926) cells were incubated with hypoxanthine, aminopterin, thymidine and methionine (HAT/MET) to increase cellular Hcy levels, and with and without AGE. Agonist stimulated NO output was measured using the fluorescent probe DAF-2, and cellular thiol levels (Hcy, cysteine, reduced and oxidized glutathione) and cellular tetrahydrobiopterin levels were measured by high performance liquid chromatography. RESULTS HAT/MET incubation resulted in significantly increased cellular Hcy levels, unaffected by coincubation with AGE. Elevated Hcy went along with significantly decreased NO output (to 34.4 ± 4.4% of control) and levels of tetrahydrobiopterin (from 4.67 ± 2.17 to 2.17 ± 0.97 pmol/mg). Incubation with AGE (5mg/mL) in HAT/MET-treated cells prevented the declines in NO output and tetrahydrobiopterin levels. AGE increased cellular levels of cysteine and total glutathione, and prevented glutathione and tetrahydrobiopterin oxidation induced by elevated Hcy. CONCLUSION Incubation with AGE preserved normal NO output from endothelial cells even under conditions of elevated Hcy levels by increasing cellular thiol antioxidant and prevention of tetrahydrobiopterin oxidation. This suggests that AGE might be useful in the prevention of endothelial dysfunction.
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Affiliation(s)
- Norbert Weiss
- Center for Vascular Medicine, Section Angiology, University of Munich Medical Center, City Campus, Munich, Germany.
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Zeb I, Ahmadi N, Nasir K, Kadakia J, Larijani VN, Flores F, Li D, Budoff MJ. Aged garlic extract and coenzyme Q10 have favorable effect on inflammatory markers and coronary atherosclerosis progression: A randomized clinical trial. J Cardiovasc Dis Res 2012; 3:185-90. [PMID: 22923934 PMCID: PMC3425023 DOI: 10.4103/0975-3583.98883] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Background: Aged garlic extract (AGE) and coenzyme Q10 (CoQ10) have been shown to affect multiple cardiovascular risk factors. The current study evaluates the effect of AGE combined with CoQ10 on inflammatory markers and progression of coronary atherosclerosis compared with placebo. Methods and Results: In this placebo-controlled, double-blind, randomized trial, 65 intermediate risk firefighters (age 55 ± 6 years) were treated with a placebo capsule or a capsule containing AGE and CoQ10 (AGE+CoQ10, 1200 and 120 mg, respectively) daily for 1 year. All participants underwent coronary artery calcium (CAC) scanning and C-reactive protein (CRP) at baseline and at 12 months. At 1 year, mean CAC progression was significantly lower in AGE+CoQ10 (32 ± 6 vs. 58 ± 8, P = 0.01) than placebo. Similarly, CRP were significantly decreased in AGE+CoQ10 compared with placebo (-0.12 ± 0.24 vs. 0.91 ± 0.56 mg/L, P < 0.05). After adjustment for age, gender, conventional cardiac risk factors, and statin therapy, AGE+CoQ10 was associated with 3.99 fold (95% 1.3–12.2, P = 0.01) lack of CAC progression compared with the placebo. Conclusion: AGE+CoQ10 are associated with beneficial effects on inflammatory markers and reduced progression of coronary atherosclerosis.
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Affiliation(s)
- Irfan Zeb
- Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA
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24
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Affiliation(s)
- I. Hammami
- Research Unity 01/UR/08-07; Faculty of Medicine; Department of Histology, Embryology and Cell Biology; Tunis; Tunisia
| | - M. V. El May
- Research Unity 01/UR/08-07; Faculty of Medicine; Department of Histology, Embryology and Cell Biology; Tunis; Tunisia
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Malekpour-Dehkordi Z, Javadi E, Doosti M, Paknejad M, Nourbakhsh M, Yassa N, Gerayesh-Nejad S, Heshmat R. S-Allylcysteine, a Garlic Compound, Increases ABCA1 Expression in Human THP-1 Macrophages. Phytother Res 2012; 27:357-61. [DOI: 10.1002/ptr.4713] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Revised: 03/26/2012] [Accepted: 03/29/2012] [Indexed: 11/08/2022]
Affiliation(s)
- Zahra Malekpour-Dehkordi
- Department of Biochemistry, School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - Ebrahim Javadi
- Department of Biochemistry, School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - Mahmood Doosti
- Department of Biochemistry, School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - Maliheh Paknejad
- Department of Biochemistry, School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - Mitra Nourbakhsh
- Department of Biochemistry, School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - Narguess Yassa
- Faculty of Pharmacy, Department of Pharmacognosy; Tehran University of Medical Sciences; Tehran Iran
| | - Siavash Gerayesh-Nejad
- Department of Biochemistry, School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - Ramin Heshmat
- Endocrine and Metabolism Research Center, Shariati Hospital; Tehran University of Medical Sciences; Tehran Iran
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Abstract
The present article reviews the historical and popular uses of garlic, its antioxidant, haematological, antimicrobial, hepatoprotective and antineoplastic properties and its potential toxicity (from sulfoxide). Garlic has been suggested to affect several cardiovascular risk factors. It has also been shown that garlic and its organic allyl sulfur components are effective inhibitors of the cancer process. Since garlic and its constituents can suppress carcinogen formation, bioactivation and tumour proliferation, it is imperative that biomarkers be established to identify which individuals might benefit most. Garlic powder, aged garlic and garlic oil have demonstrated antiplatelet and anticoagulant effects by interfering with cyclo-oxygenase-mediated thromboxane synthesis. Garlic has also been found to have synergistic effects against Helicobacter pylori with a proton pump inhibitor. The active compound allicin may affect atherosclerosis not only by acting as an antioxidant, but also by other mechanisms, such as lipoprotein modification and inhibition of LDL uptake and degradation by macrophages. Freshly prepared garlic homogenate protects against isoniazid+rifampicin-induced liver injury in experimental animal models. Several mechanisms are likely to account for this protection.
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HAMLAOUI-GASMI SONIA, MOKNI MEHERZIA, AOUANI EZZEDINE, AMRI MOHAMED, MARZOUKI LAMJED. MODULATION OF HEMATOLOGICAL PARAMETERS BY GARLIC BASED ON ROUTE OF ADMINISTRATION IN RAT. J Food Biochem 2011. [DOI: 10.1111/j.1745-4514.2010.00394.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Amran AA, Zakaria Z, Othman F, Das S, Al-Mekhlafi HM, Nordin NAMM. Changes in the vascular cell adhesion molecule-1, intercellular adhesion molecule-1 and c-reactive protein following administration of aqueous extract of piper sarmentosum on experimental rabbits fed with cholesterol diet. Lipids Health Dis 2011; 10:2. [PMID: 21214952 PMCID: PMC3024236 DOI: 10.1186/1476-511x-10-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2010] [Accepted: 01/09/2011] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Inflammation process plays an important role in the development of atherosclerosis. Hypercholesterolemia is one of the major risk factors for atherosclerosis. The present study aimed to evaluate the effect of aqueous extract of Piper sarmentosum (P.s) on inflammatory markers like vascular cell adhesion molecule-1 (VCAM-1), intercellular adhesion molecule-1 (ICAM-1), and C-reactive protein (CRP). METHODS Forty two male New Zealand white rabbits were divided equally into seven groups; (i) C- control group fed normal rabbit chow (ii) CH- cholesterol diet (1%cholesterol) (iii) X1- 1% cholesterol with water extract of P.s (62.5 mg/kg) (iv) X2- 1% cholesterol with water extract of P.s (125 mg/kg (v) X3- 1% cholesterol with water extract of P.s (250 mg/kg) (vi) X4- 1% cholesterol with water extract of P.s (500 mg/kg) and (vii) SMV group fed with 1% cholesterol supplemented with simvistatin drug (1.2 mg/kg). All animals were treated for 10 weeks. Blood serum was taken for observing the inflammatory markers at the beginning and end of the experiment. RESULTS Rabbits fed with 1% cholesterol diet (CH) showed significant increase in the level of VCAM-1, ICAM-1 and CRP compared to the C group. The levels of VCAM-1, ICAM-1 and CRP in the 1% cholesterol group and supplemented with P.s (500 mg/kg) were significantly reduced compared to the cholesterol group. Similar results were also reported with simvistatin group. CONCLUSION These results suggest that the supplementation of Piper sarmentosum extract could inhibit inflammatory markers which in turn could prevent atherosclerosis.
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Affiliation(s)
- Adel A Amran
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Zaiton Zakaria
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Faizah Othman
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Srijit Das
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Hesham M Al-Mekhlafi
- Department of Parasitology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Nor-Anita MM Nordin
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
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Amran AA, Zakaria Z, Othman F, Das S, Raj S, Nordin NAMM. Aqueous extract of Piper sarmentosum decreases atherosclerotic lesions in high cholesterolemic experimental rabbits. Lipids Health Dis 2010; 9:44. [PMID: 20433693 PMCID: PMC2877048 DOI: 10.1186/1476-511x-9-44] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2010] [Accepted: 04/30/2010] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Piper sarmentosum (P.s) has flavonoid component in its leaves which has antioxidative effect. To date, its effect on atherosclerosis has not been studied histologically. AIM The study aimed to investigate the effect of P.s on atherosclerotic changes in hypercholesterolemic rabbits. METHODS Forty two male New Zealand white rabbits were divided into seven groups. C - control group fed normal rabbit chow, CH - cholesterol diet (1% cholesterol), W1 - 1% cholesterol with water extract of P.s (62.5 mg/kg), W2 - 1% cholesterol with water extract of P.s (125 mg/kg), W3 - 1% cholesterol with water extract of P.s (250 mg/kg), W4 - 1% cholesterol with water extract of P.s (500 mg/kg) and Smv - 1% cholesterol supplemented with simvistatin drug (1.2 mg/kg). All rabbits were treated for 10 weeks. Following 10 weeks of supplementation, the animals were sacrificed and the aortic tissue was taken for histological study. RESULTS Rabbits fed only with high cholesterol diet 1% cholesterol (CH) showed focal fatty streak lesions compared to the C group and 1% cholesterol supplemented with simvistatin drug (Smv) group. Atherosclerotic lesions in the 1% cholesterol group supplemented with P.s (500 mg/kg) i.e. W4 group showed significant reduction (30 + or - 6.0%, p < 0.05) in fatty streak compared to the high cholesterol group (85.6 + or - 4.1%) under Sudan IV stain. The atherosclerotic lesions under transmission electron microscope showed reduction in foam cells in the treatment groups compared to the CH groups. CONCLUSION Administration of P.s extract has protective effect against atheroscleros.
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Affiliation(s)
- Adel A Amran
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Zaiton Zakaria
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Faizah Othman
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Srijit Das
- Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - Santhana Raj
- Unit Electron Microscopy, Institute of Medical Research, Jalan Pahang, 50588 Kuala Lumpur, Malaysia
| | - Nor-Anita MM Nordin
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
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Nasim SA, Mujib A, Rashmi K, Samar F, Junaid A. Improved alliin yield in somatic embryos of Allium sativum L. (cv. Yamuna safed) as analyzed by HPTLC. Acta Biol Hung 2009; 60:441-54. [PMID: 20015835 DOI: 10.1556/abiol.60.2009.4.10] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Direct somatic embryo formation (without intervening callus) from garlic clove basal tissue was induced in which the influence of plant growth regulators (PGRs) on various explants was examined. Medium added with 2.0 mg/l 6-benzylaminopurine (BAP) and 0.5 mg/l 2,4-dichlorophenoxyacetic acid (2,4-D) were the most effective PGR combination for somatic embryo induction. It induced embryos directly in 85.5% of the basal clove explant. Callus induction was also obtained from other parts of explant and 2.0 mg/l 2,4-D induced callusing in 86.5% of the inoculated explants. Protein, amino acid and alliin content were measured in callus and in embryos. Somatic embryos had more soluble protein and free amino acid compared to callus. HPTLC analysis revealed that alliin was significantly high in somatic embryos compared to undifferentiated callus tissue; the content was even more in older embryos. The present study of Allium indicates that the event of morphogenetic development including in vitro embryogeny can effectively be analysed by monitoring the changes of biochemical profiles.
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Affiliation(s)
- S A Nasim
- Hamdard University Department of Botany, Cellular Differentiation and Molecular Genetics Section New Delhi 110 062 India
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Abstract
Garlic (Allium sativum L. fam. Alliaceae) is one of the best-researched, best-selling herbal remedies and is also commonly used as a food and a spice. Garlic constituents include enzymes (for example, alliinase) and sulfur-containing compounds, including alliin, and compounds produced enzymatically from alliin (for example, allicin). Traditionally, it has been employed to treat infections, wounds, diarrhea, rheumatism, heart disease, diabetes, and many other disorders. Experimentally, it has been shown to exert antilipidemic, antihypertensive, antineoplastic, antibacterial, immunostimulant and hypoglycemic actions. Clinically, garlic has been evaluated for a number of conditions, including hypertension, hypercholesterolemia, intermittent claudication, diabetes, rheumatoid arthritis, common cold, as an insect repellent, and for the prevention of arteriosclerosis and cancer. Systematic reviews are available for the possible antilipidemic, antihypertensive, antithrombotic and chemopreventive effects. However, the clinical evidence is far from compelling. Garlic appears to be generally safe although allergic reactions may occur.
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Affiliation(s)
- Gabriella Aviello
- Department of Experimental Pharmacology, University of Naples Federico II, Naples, Italy
| | - Ludovico Abenavoli
- Department of Experimental and Clinical Medicine, University “Magna Graecia”, Catanzaro, Italy
| | - Francesca Borrelli
- Department of Experimental Pharmacology, University of Naples Federico II, Naples, Italy
| | - Raffaele Capasso
- Department of Experimental Pharmacology, University of Naples Federico II, Naples, Italy
| | - Angelo Antonio Izzo
- Department of Experimental Pharmacology, University of Naples Federico II, Naples, Italy
| | - Francesca Lembo
- Department of Experimental Pharmacology, University of Naples Federico II, Naples, Italy
| | - Barbara Romano
- Department of Experimental Pharmacology, University of Naples Federico II, Naples, Italy
| | - Francesco Capasso
- Department of Experimental Pharmacology, University of Naples Federico II, Naples, Italy
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McCarty MF, Barroso-Aranda J, Contreras F. High-dose folate and dietary purines promote scavenging of peroxynitrite-derived radicals – Clinical potential in inflammatory disorders. Med Hypotheses 2009; 73:824-34. [DOI: 10.1016/j.mehy.2008.09.058] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2008] [Revised: 09/12/2008] [Accepted: 09/18/2008] [Indexed: 01/02/2023]
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Setorki M, Asgary S, Eidi A, Rohani AH, Esmaeil N. Effects of apple juice on risk factors of lipid profile, inflammation and coagulation, endothelial markers and atherosclerotic lesions in high cholesterolemic rabbits. Lipids Health Dis 2009; 8:39. [PMID: 19804641 PMCID: PMC2761910 DOI: 10.1186/1476-511x-8-39] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2009] [Accepted: 10/05/2009] [Indexed: 12/20/2022] Open
Abstract
Background Atherosclerosis which results from gradual deposition of lipids in medium and large arteries is a leading cause of mortality worldwide. The objective of this study was to determine the effect of apple juice on some risk factors of atherosclerosis and on the development of atherosclerosis in rabbits fed a high-cholesterol diet. Methods Thirty two male rabbits were randomly divided into four groups: normal diet, high cholesterol diet (%1 cholesterol), 1% cholesterol supplemented with 5 ml apple juice (low dose) and 1% cholesterol supplemented with 10 ml apple juice (high dose) for 2 month. The C-reactive protein (CRP), nitrite, nitrate, fibrinogen, total cholesterol(TC) and factor VII were measured before the experiment and by the end of period. At the end of study, fatty streak formation in right and left coronary arteries were determined using Chekanov method in all groups. Results Both doses of apple juice significantly were decreased TC, TG, CRP, fibrinogen, factor VII levels, atherosclerotic lesion in right and left coronary arteries and increased nitrite and nitrate compared to cholesterolemic diet. Also using 10 ml apple juice caused significant reduce in LDL-C and increase HDL-C, but 5 ml apple juice did not change these factors. Significant differences were observed between 5 and 10 ml apple juice groups by LDL-C. No significant difference was found between 5 and 10 ml apple juice groups with regard to CRP, nitrite, nitrate, fibrinogen, factor VII, TG, HDL-C and TC concentrations. Conclusion Apple juice can effectively prevent the progress of atherosclerosis. This is likely due to antioxidant and anti-inflammatory effect of apple juice.
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Affiliation(s)
- Mahbubeh Setorki
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran.
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Budoff MJ, Ahmadi N, Gul KM, Liu ST, Flores FR, Tiano J, Takasu J, Miller E, Tsimikas S. Aged garlic extract supplemented with B vitamins, folic acid and L-arginine retards the progression of subclinical atherosclerosis: a randomized clinical trial. Prev Med 2009; 49:101-7. [PMID: 19573556 DOI: 10.1016/j.ypmed.2009.06.018] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2009] [Revised: 06/14/2009] [Accepted: 06/18/2009] [Indexed: 01/07/2023]
Abstract
OBJECTIVES Previous studies demonstrated that aged garlic extract reduces multiple cardiovascular risk factors. This study was designed to assess whether aged garlic extract therapy with supplements (AGE+S) favorably affects inflammatory and oxidation biomarkers, vascular function and progression of atherosclerosis as compared to placebo. METHODS In this placebo-controlled, double-blind, randomized trial (conducted 2005-2007), 65 intermediate risk patients (age 60+/-9 years, 79% male) were treated with a placebo capsule or a capsule containing aged garlic extract (250 mg) plus Vitamin B12 (100 microg), folic acid (300 microg), Vitamin B6 (12.5 mg) and l-arginine (100 mg) given daily for a 1 year. All patients underwent coronary artery calcium scanning (CAC), temperature rebound (TR) as an index of vascular reactivity using Digital Thermal Monitoring (DTM), and measurement of lipid profile, autoantibodies to malondialdehyde (MDA)-LDL, apoB-immune complexes, oxidized phospholipids (OxPL) on apolipoprotein B-100 (OxPL/apoB), lipoprotein (a) [Lp (a)], C-reactive protein (CRP), homocysteine were measured at baseline and 12 months. CAC progression was defined as an increase in CAC>15% per year and an increase in TR above baseline was considered a favorable response. RESULTS At 1 year, CAC progression was significantly lower and TR significantly higher in the AGE+S compared to the placebo group after adjustment of cardiovascular risk factors (p<0.05). Total cholesterol, LDL-C, homocysteine, IgG and IgM autoantibodies to MDA-LDL and apoB-immune complexes were decreased, whereas HDL, OxPL/apoB, and Lp (a) were significantly increased in AGE+S to placebo. CONCLUSION AGE+S is associated with a favorable improvement in oxidative biomarkers, vascular function, and reduced progression of atherosclerosis.
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Affiliation(s)
- Matthew J Budoff
- Division of Cardiology, Los Angeles Biomedical Research Institute at Harbor-UCLA, Torrance, CA, USA.
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Chandrashekar PM, Venkatesh YP. Identification of the protein components displaying immunomodulatory activity in aged garlic extract. J Ethnopharmacol 2009; 124:384-390. [PMID: 19505565 DOI: 10.1016/j.jep.2009.05.030] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2009] [Revised: 05/11/2009] [Accepted: 05/28/2009] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditionally, garlic (Allium sativum L.; Alliaceae) has been known to boost the immune system. Aged garlic has more potent immunomodulatory effects than raw garlic. These effects have been attributed to the transformed organosulfur compounds; the identity of the immunomodulatory proteins in aged garlic extract (AGE) is not known. AIM OF THE STUDY The major aims are to examine the changes occurring in the protein fraction during ageing of garlic and to identify the immunomodulatory proteins. MATERIALS AND METHODS Changes occurring in garlic during ageing have been examined by protein quantitation and gel electrophoresis. Purification and identification of the immunomodulatory proteins have been achieved by Q-Sepharose chromatography and mitogenic activity. RESULTS Only two major proteins (12-14 kDa range by SDS-PAGE) are observed in AGE. The purified protein components QA-1, QA-2, and QA-3 display immunomodulatory and mannose-binding activity; QA-2 shows the highest mitogenic activity. The identity of QA-2 and QA-1 proteins with the garlic lectins ASA I and ASA II, respectively, has been confirmed by hemagglutination analysis. QA-3 exhibits mitogenic activity, but no hemagglutination activity. CONCLUSIONS The immunomodulatory activity of AGE is also contributed by immunomodulatory proteins. The major immunomodulatory proteins have been identified as the well-known garlic lectins.
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Affiliation(s)
- P M Chandrashekar
- Department of Biochemistry and Nutrition, Central Food Technological Research Institute (CSIR Laboratory), Mysore-570020, Karnataka State, India
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Abstract
It has been suggested that oxidation of low-density lipoprotein (LDL) plays an important role in the initiation and progression of atherosclerosis. In the present study, we determined the anti-atherogenic effects of egg yolk-enriched garlic powder (EGP), which has been used as a traditional health-promoting food in southern Japan since ancient times, on LDL oxidation and oxidant stress-induced cell injury models. We confirmed that EGP inhibits copper-induced LDL oxidation in a dose-dependent manner. We also observed that pretreatment of EGP significantly suppressed the production of peroxides in HL60 cells and protected endothelial cells from hydrogen peroxide-induced cell injury. These findings might, in part, be ascribed to the biodistribution of garlic compounds and egg yolk interaction, and suggest that EGP might be useful in the prevention of atherosclerosis.
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Affiliation(s)
- Kazuyo Yamaji
- Department of Laboratory and Molecular Medicine, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima City 890-8520, Japan.
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Hammami I, Amara S, Benahmed M, El May MV, Mauduit C. Chronic crude garlic-feeding modified adult male rat testicular markers: mechanisms of action. Reprod Biol Endocrinol 2009; 7:65. [PMID: 19552815 PMCID: PMC2710331 DOI: 10.1186/1477-7827-7-65] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2008] [Accepted: 06/24/2009] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Garlic or Allium sativum (As) shows therapeutic effects such as reduction of blood pressure or hypercholesterolemia but side-effects on reproductive functions remain poorly investigated. Because of garlic's chemical complexity, the processing methods and yield in preparations differ in efficacy and safety. In this context, we clarify the mechanisms of action of crushed crude garlic on testicular markers. METHODS During one month of treatment, 24 male rats were fed 5%, 10% and 15% crude garlic. RESULTS We showed that crude garlic-feeding induced apoptosis in testicular germ cells (spermatocytes and spermatids). This cell death process was characterized by increased levels of active CASP3 but not CASP6. Expression of the caspase inhibitors BIRC3 and BIRC2 was increased at all doses of As while expression of XIAP and BIRC5 was unchanged. Moreover, expression of the IAP inhibitor DIABLO was increased at doses 10% and 15% of As. The germ cell death process induced by As might be related to a decrease in testosterone production because of the reduced expression of steroidogenic enzymes (Star, Cyp11a, Hsd3b5 and Hsd17b). Evaluation of Sertoli markers showed that TUBB3 and GSTA2 expression was unchanged. In contrast, AMH, RHOX5 and CDKN1B expression was decreased while GATA4 expression was increased. CONCLUSION In summary, we showed that feeding with crude garlic inhibited Leydig steroidogenic enzyme expression and Sertoli cell markers. These alterations might induce apoptosis in testicular germ cells.
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Affiliation(s)
- Imen Hammami
- Unité de recherche n° 01/UR/08-07, Faculté de Médecine, 15 rue Djebel Lakhdar, 1007 Tunis; Tunisie
- Inserm, U407, Oullins, F-69921, France; Université de Lyon, Oullins, F-69921, France; Université Lyon 1, Oullins, F-69921, France
| | - Souheila Amara
- Inserm, U407, Oullins, F-69921, France; Université de Lyon, Oullins, F-69921, France; Université Lyon 1, Oullins, F-69921, France
| | - Mohamed Benahmed
- Inserm, U407, Oullins, F-69921, France; Université de Lyon, Oullins, F-69921, France; Université Lyon 1, Oullins, F-69921, France
| | - Michèle V El May
- Unité de recherche n° 01/UR/08-07, Faculté de Médecine, 15 rue Djebel Lakhdar, 1007 Tunis; Tunisie
| | - Claire Mauduit
- Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, Laboratoire d'Anatomie et de Cytologie Pathologique, Pierre-Bénite Cedex F-69495, France
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MOKNI M, LIMAM F, AMRI M, AOUANI E. PLASMA LIPID MODULATING ACTIVITY OF INTRAPERITONEALLY ADMINISTERED AQUEOUS EXTRACT FROM RAW GARLIC: ACUTE STUDIES IN NORMO-LIPIDEMIC RAT. J Food Biochem 2009. [DOI: 10.1111/j.1745-4514.2009.00223.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sobenin IA, Andrianova IV, Fomchenkov IV, Gorchakova TV, Orekhov AN. Time-released garlic powder tablets lower systolic and diastolic blood pressure in men with mild and moderate arterial hypertension. Hypertens Res 2009; 32:433-7. [DOI: 10.1038/hr.2009.36] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Sobenin IA, Nedosugova LV, Filatova LV, Balabolkin MI, Gorchakova TV, Orekhov AN. Metabolic effects of time-released garlic powder tablets in type 2 diabetes mellitus: the results of double-blinded placebo-controlled study. Acta Diabetol 2008; 45:1-6. [PMID: 17823766 DOI: 10.1007/s00592-007-0011-x] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2007] [Accepted: 07/13/2007] [Indexed: 10/22/2022]
Abstract
Late complications in type 2 diabetic patients are commonly associated with accelerated development of atherosclerosis. In type 2 diabetes mellitus, non-enzymatic glycosylation of apo-B that is a function of hyperglycaemia is an efficient biochemical way of low-density lipoprotein atherogenic modification. So, proper metabolic control is needed to prevent late complications of diabetes. The study was performed to estimate the effects of time-released garlic powder tablet Allicor on the parameters of metabolic control and plasma lipids in type 2 diabetes mellitus. The metabolic action of Allicor was investigated in the 4-week double-blinded placebo-controlled study in 60 type 2 diabetic patients. Fasting blood glucose was measured daily, and serum fructosamine as well as cholesterol and triglyceride levels were determined at the baseline, after 1, 2, 3 and 4 weeks. It has been demonstrated that treatment with Allicor resulted in better metabolic control due to the lowering of fasting blood glucose, serum fructosamine and serum triglyceride levels. The results of this study may allow recommending garlic powder tablets Allicor for the treatment of type 2 diabetes mellitus along with dietary treatment and/or sulfonylurea derivatives to achieve better metabolic control. The benefits from garlic preparations may lead to the reduction of cardiovascular risk in diabetic patients.
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Affiliation(s)
- Igor A Sobenin
- Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, Russia
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Gonen A, Harats D, Rabinkov A, Miron T, Mirelman D, Wilchek M, Weiner L, Ulman E, Levkovitz H, Ben-Shushan D, Shaish A. The antiatherogenic effect of allicin: possible mode of action. Pathobiology 2006; 72:325-34. [PMID: 16582584 DOI: 10.1159/000091330] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2005] [Accepted: 11/22/2005] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVE Garlic (Allium sativum) has been suggested to affect several cardiovascular risk factors. Its antiatherosclerotic properties are mainly attributed to allicin that is produced upon crushing of the garlic clove. Most previous studies used various garlic preparations in which allicin levels were not well defined. In the present study, we evaluated the effects of pure allicin on atherogenesis in experimental mouse models. METHODS AND RESULTS Daily dietary supplement of allicin, 9 mg/kg body weight, reduced the atherosclerotic plaque area by 68.9 and 56.8% in apolipoprotein E-deficient and low-density lipoprotein (LDL) receptor knockout mice, respectively, as compared with control mice. LDL isolated from allicin-treated groups was more resistant to CuSO(4)-induced oxidation ex vivo than LDL isolated from control mice. Incubation of mouse plasma with (3)H-labeled allicin showed binding of allicin to lipoproteins. By using electron spin resonance, we demonstrated reduced Cu(2+) binding to LDL following allicin treatment. LDL treatment with allicin significantly inhibited both native LDL and oxidized LDL degradation by isolated mouse macrophages. CONCLUSIONS By using a pure allicin preparation, we were able to show that allicin may affect atherosclerosis not only by acting as an antioxidant, but also by other mechanisms, such as lipoprotein modification and inhibition of LDL uptake and degradation by macrophages.
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Affiliation(s)
- Ayelet Gonen
- Institute of Lipid and Atherosclerosis Research, Sheba Medical Center, Tel Hashomer, Israel
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Abstract
Prospective epidemiologic studies have identified several risk factors for heart disease, and most can be the target of risk reduction interventions. The most widely recognized risk factors for atherosclerotic cardiovascular disease (ASCVD) include age, gender, cigarette smoking, sedentary lifestyle, elevated LDL, reduced HDL, hypertension, and diabetes. The consistency of associations between these factors and ASCVD risk across populations is substantial. Our understanding of the pathogenesis and etiology of coronary ASCVD, as well as its clinical implications, has grown tremendously over the past 20 y. The role garlic might play in treating ASCVD has been postulated for many years, but until recently no studies on garlic's ability to inhibit the atherosclerotic process have been reported. A pilot study evaluating coronary artery calcification and the effect of garlic therapy in a group of patients who were also on statin therapy suggested incremental benefits. The implications of this study must be put in context of the potential importance of early atherosclerosis detection and prevention.
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Affiliation(s)
- Matthew Budoff
- Division of Cardiology, Harbor-UCLA Medical Center, Torrance, CA, USA
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Abstract
Patients with chronic kidney disease (CKD) have a higher burden of atherosclerotic coronary artery disease compared with age- and gender-matched individuals with normal renal function. Cardiovascular calcification (CVC), a marker of atherosclerosis, is also more prevalent in these patients and is associated with serious clinical consequences. The pathogenesis of CVC is complex and includes factors that promote calcification and others that inhibit calcification. Thus, multiple therapeutic interventions should be used simultaneously to reduce the burden of calcification in patients with CKD. Thus far, interventional attempts have focused on curtailing the effects of factors that promote calcification such as management of known traditional factors for atherosclerotic coronary artery disease and on adopting specific approaches to normalize mineral metabolism, deliver adequate dialysis, and control serum cholesterol level. By contrast, interventions that may bolster the effects of inhibitors of calcification have not yet been studied well but are beginning to attract attention. Ideally, the goal of interventions is not only to slow or halt progression of calcification but also to reverse pre-existing calcification. Whether this goal is achievable is not currently known. This review examines the potential of various therapeutic interventions in reducing the CVC burden in patients with CKD. Moreover, the review is intended to stimulate more research in this area because the efficacy of these interventions has not been examined in controlled clinical trials.
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Affiliation(s)
- Wajeh Y Qunibi
- Department of Medicine, University of Texas Health Sciences Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229-3900, USA.
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Wang BS, Chen JH, Liang YC, Duh PD. Effects of Welsh onion on oxidation of low-density lipoprotein and nitric oxide production in macrophage cell line RAW 264.7. Food Chem 2005. [DOI: 10.1016/j.foodchem.2004.06.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Golovchenko I, Yang CH, Goalstone ML, Draznin B. Garlic extract methylallyl thiosulfinate blocks insulin potentiation of platelet-derived growth factor-stimulated migration of vascular smooth muscle cells. Metabolism 2003; 52:254-9. [PMID: 12601642 DOI: 10.1053/meta.2003.50042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Platelet-derived growth factor (PDGF) is a potent inducer of vascular smooth muscle cell (VSMC) migration, whereas insulin, in physiological concentrations, helps maintain the nonproliferative phenotype of these cells. However, hyperinsulinemia (10 nmol/L) significantly potentiates the PDGF (30 pmol/L)-induced migration of VSMC. This potentiating effect of hyperinsulinemia appears to be mediated by increased availability of geranylgeranylated Rho-A. Hyperinsulinemia significantly increased the activity of geranylgeranyltransferase I (GGTase I) and the amounts of prenylated Rho-A. This action of hyperinsulinemia was inhibited by methylallyl thiosulfinate (MAT), a component of garlic extract, which exerted a strong anti-GGTase I activity. MAT also completely inhibited the ability of hyperinsulinemia to potentiate the PDGF-induced VSMC migration. Thus, the purported anti-atherogenic action of garlic may be related to its inhibitory influence on GGTase I.
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Affiliation(s)
- Inga Golovchenko
- Research Service of the Veterans Affairs Medical Center, Denver, CO 80220, USA
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Abstract
Garlic and its preparations have been widely recognized as agents for prevention and treatment of cardiovascular and other metabolic diseases, atherosclerosis, hyperlipidemia, thrombosis, hypertension and diabetes. Effectiveness of garlic in cardiovascular diseases was more encouraging in experimental studies, which prompted several clinical trials. Though many clinical trials showed a positive effect of garlic on almost all cardiovascular conditions mentioned above, however a number of negative studies have recently cast doubt on the efficacy of garlic specially its cholesterol lowering effect of garlic. It is a great challenge for scientists all over the world to make a proper use of garlic and enjoy its maximum beneficial effect as it is the cheapest way to prevent cardiovascular disease. This review has attempted to make a bridge the gap between experimental and clinical study and to discuss the possible mechanisms of such therapeutic actions of garlic.
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Affiliation(s)
- Sanjay K Banerjee
- Departments of Pharmacology, All India Institute of Medical sciences, New Delhi – 110029, India
| | - Subir K Maulik
- Departments of Pharmacology, All India Institute of Medical sciences, New Delhi – 110029, India
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Colić M, Vucević D, Kilibarda V, Radicević N, Savić M. Modulatory effects of garlic extracts on proliferation of T-lymphocytes in vitro stimulated with concanavalin A. Phytomedicine 2002; 9:117-124. [PMID: 11995944 DOI: 10.1078/0944-7113-00093] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Different active components from the garlic (Allium sativum) possess immunomodulatory activity both in vitro and in vivo. However, mechanisms of their actions are not sufficiently elucidated. In this study we examined the effects of garlic aqueous extract (GAE) and garlic ethanolic extract (GEE), prepared from two different garlic powder samples, on proliferation of rat thymocytes and splenocytes in culture, stimulated with concanavalin A (Con A). It has been shown that the extracts from both samples significantly modulate lymphocyte proliferation, triggered by this potent T-cell mitogen, depending on the type and dilutions of extracts and concentrations of Con A. The extracts, alone, were not mitogenic for lymphocytes. Generally, higher concentrations of the extracts showed inhibitory effects, whereas lower concentrations significantly augmented proliferation of lymphocytes. The stimulatory effect of GAE was stronger using splenocytes and suboptimal concentrations of Con A as a consequence of increased interleukin 2 (IL-2) production as well as the expression of IL-2 receptor alpha (IL-2Ralpha). The relationship between these two phenomena was demonstrated using neutralizing anti-IL-2Ralpha monoclonal antibody. The inhibitory effect of GAE correlated with a decrease in IL-2 production, but was not followed by down-regulation of IL-2Ralpha expression. The addition of IL-2 almost completely abolished inhibition of lymphocyte proliferation in the presence of higher concentrations of GAE.
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Affiliation(s)
- M Colić
- Institute of Medical Research, Military Medical Academy, Belgrade, Yugoslavia.
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