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Li Y, Ma J, Cao Y, Yang D. Efficient removal of allicin from the stalk of Allium fistulosum for dietary fiber production. NPJ Sci Food 2024; 8:32. [PMID: 38877017 PMCID: PMC11178807 DOI: 10.1038/s41538-024-00275-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 05/30/2024] [Indexed: 06/16/2024] Open
Abstract
The stalk of Allium fistulosum contains dietary fibers with complicated monosaccharide composition and glycosidic bond linkages, which renders it a better dietary fiber supplement. However, the unfavorable odor, majorly contributed by allicin, limits its applications. Although many physical and chemical methods have been developed to remove allicin, there is currently no comparison between their efficiencies. Here, we comprehensively compare all these methods of eliminating allicin in the Allium stalk by starting with optimization of the allicin extraction method. Results indicate that incubation of the chopped Allium stalk with water for 20 min and extraction with 75% ethanol reached a maximal extraction yield. Different methods of allicin elimination are examined, and physical removal of allicin by blanching at 100 °C reaches a maximal clearance rate of 73.3%, rendering it the most efficient and effective method eliminating allicin from the stalk of Allium fistulosum for the preparation of a totally green dietary fiber.
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Affiliation(s)
- Ye Li
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science & Nutritional Engineering, China Agricultural University, 17 East Tsinghua Rd., Beijing, 100083, China
| | - Jiayin Ma
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science & Nutritional Engineering, China Agricultural University, 17 East Tsinghua Rd., Beijing, 100083, China
| | - Yubin Cao
- Jiangsu QingGu Foods Co., Ltd, Xingdong Economic Development Zone, Xinghua, 225700, China
| | - Dong Yang
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science & Nutritional Engineering, China Agricultural University, 17 East Tsinghua Rd., Beijing, 100083, China.
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2
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Zhou S, Li C, Liu L, Yuan Q, Miao J, Wang H, Ding C, Guan W. Gastric microbiota: an emerging player in gastric cancer. Front Microbiol 2023; 14:1130001. [PMID: 37180252 PMCID: PMC10172576 DOI: 10.3389/fmicb.2023.1130001] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 04/04/2023] [Indexed: 05/16/2023] Open
Abstract
Gastric cancer (GC) is a common cancer worldwide with a high mortality rate. Many microbial factors influence GC, of which the most widely accepted one is Helicobacter pylori (H. pylori) infection. H. pylori causes inflammation, immune reactions and activation of multiple signaling pathways, leading to acid deficiency, epithelial atrophy, dysplasia and ultimately GC. It has been proved that complex microbial populations exist in the human stomach. H. pylori can affect the abundance and diversity of other bacteria. The interactions among gastric microbiota are collectively implicated in the onset of GC. Certain intervention strategies may regulate gastric homeostasis and mitigate gastric disorders. Probiotics, dietary fiber, and microbiota transplantation can potentially restore healthy microbiota. In this review, we elucidate the specific role of the gastric microbiota in GC and hope these data can facilitate the development of effective prevention and therapeutic approaches for GC.
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Affiliation(s)
- Shizhen Zhou
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Chenxi Li
- Laboratory Medicine Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Lixiang Liu
- Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Qinggang Yuan
- Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Xuzhou Medical University, Nanjing, Jiangsu, China
| | - Ji Miao
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Hao Wang
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Chao Ding
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Wenxian Guan
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
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BOSE SUSMITA, BHATTACHARJEE ARJAK, HUYNH CHRISTINE, BANERJEE DISHARY. Allicin-Loaded Hydroxyapatite: Enhanced Release, Cytocompatibility, and Antibacterial Properties for Bone Tissue Engineering Applications. JOM (WARRENDALE, PA. : 1989) 2022; 74:3349-3356. [PMID: 36568491 PMCID: PMC9770096 DOI: 10.1007/s11837-022-05366-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 05/23/2022] [Indexed: 06/17/2023]
Abstract
Allicin, the active compound of garlic extract, is a naturally sourced biomolecule, which promotes a vast range of health benefits. However, the limited stability of allicin restricts its applications in tissue engineering. Additionally, the detailed effects of allicin in bone health are yet to be explored. Our work reports on the fabrication of a novel allicin-loaded hydroxyapatite drug delivery system with enhanced biological properties. The fabricated system shows excellent antibacterial efficiency against S. aureus after 36 h of bacterial interaction with a sample. The allicin release kinetics are enhanced with polycaprolactone (PCL). The obtained results after 20 days of drug release study indicate that PCL coating leads to an increase in cumulative allicin release from ~ 35% to 70% at a physiological pH of 7.4. These scaffolds maintain stability during the whole period of drug release. Cytocompatibility of tested compositions with osteoblasts indicates enhanced cell viability and good filopodial attachment on the sample surface at day 7. These allicin-loaded antibacterial and cytocompatible scaffolds can find applications as localized delivery vehicles for bone tissue engineering.
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Affiliation(s)
- SUSMITA BOSE
- W. M. Keck Biomedical Materials Research Laboratory, Washington State University, Pullman, WA 99164, USA
| | - ARJAK BHATTACHARJEE
- W. M. Keck Biomedical Materials Research Laboratory, Washington State University, Pullman, WA 99164, USA
| | - CHRISTINE HUYNH
- W. M. Keck Biomedical Materials Research Laboratory, Washington State University, Pullman, WA 99164, USA
| | - DISHARY BANERJEE
- W. M. Keck Biomedical Materials Research Laboratory, Washington State University, Pullman, WA 99164, USA
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Oliveira GDS, McManus C, dos Santos VM. Garlic as active principle of sanitiser for hatching eggs. WORLD POULTRY SCI J 2022. [DOI: 10.1080/00439339.2022.2105275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- G. D. S. Oliveira
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília, Brazil
| | - C. McManus
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília, Brazil
| | - V. M. dos Santos
- Laboratory of Poultry Science, Federal Institute of Brasília, Brasília, Brazil
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5
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Qiu ZE, Xu JB, Chen L, Huang ZX, Lei TL, Huang ZY, Hou XC, Yang HL, Lin QH, Zhu YX, Zhao L, Zhou WL, Zhang YL. Allicin Facilitates Airway Surface Liquid Hydration by Activation of CFTR. Front Pharmacol 2022; 13:890284. [PMID: 35784719 PMCID: PMC9241074 DOI: 10.3389/fphar.2022.890284] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 05/20/2022] [Indexed: 11/16/2022] Open
Abstract
Airway epithelium plays critical roles in regulating airway surface liquid (ASL), the alteration of which causes mucus stasis symptoms. Allicin is a compound released from garlic and harbors the capacity of lung-protection. However, the potential regulatory effects of allicin on airway epithelium remain elusive. This study aimed to investigate the effects of allicin on ion transport across airway epithelium and evaluate its potential as an expectorant. Application of allicin induced Cl− secretion across airway epithelium in a concentration-dependent manner. Blockade of cystic fibrosis transmembrane conductance regulator (CFTR) or inhibition of adenylate cyclase-cAMP signaling pathway attenuated allicin-induced Cl− secretion in airway epithelial cells. The in vivo study showed that inhaled allicin significantly increased the ASL secretion in mice. These results suggest that allicin induces Cl− and fluid secretion across airway epithelium via activation of CFTR, which might provide therapeutic strategies for the treatment of chronic pulmonary diseases associated with ASL dehydration.
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Affiliation(s)
- Zhuo-Er Qiu
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Jian-Bang Xu
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Lei Chen
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Ze-Xin Huang
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Tian-Lun Lei
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Zi-Yang Huang
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Chun Hou
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Hai-Long Yang
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Qin-Hua Lin
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Yun-Xin Zhu
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Lei Zhao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
- Department of Physiology, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
- *Correspondence: Lei Zhao, ; Wen-Liang Zhou, ; Yi-Lin Zhang,
| | - Wen-Liang Zhou
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Lei Zhao, ; Wen-Liang Zhou, ; Yi-Lin Zhang,
| | - Yi-Lin Zhang
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Lei Zhao, ; Wen-Liang Zhou, ; Yi-Lin Zhang,
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Qiu Q, Yang C, Wang Y, Alexander CA, Yi G, Zhang Y, Qin X, Yang YY. Silane-functionalized polyionenes-coated cotton fabrics with potent antimicrobial and antiviral activities. Biomaterials 2022; 284:121470. [DOI: 10.1016/j.biomaterials.2022.121470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 02/16/2022] [Accepted: 03/12/2022] [Indexed: 12/26/2022]
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Valls RM, Companys J, Calderón-Pérez L, Salamanca P, Pla-Pagà L, Sandoval-Ramírez BA, Bueno A, Puzo J, Crescenti A, del Bas JM, Caimari A, Salamanca A, Espinel AE, Pedret A, Arola L, Solà R. Effects of an Optimized Aged Garlic Extract on Cardiovascular Disease Risk Factors in Moderate Hypercholesterolemic Subjects: A Randomized, Crossover, Double-Blind, Sustainedand Controlled Study. Nutrients 2022; 14:405. [PMID: 35276764 PMCID: PMC8838962 DOI: 10.3390/nu14030405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/22/2021] [Accepted: 12/26/2021] [Indexed: 02/07/2023] Open
Abstract
The consumption of aged black garlic (ABG) has been related to improvements in several cardiovascular disease (CVD) risk factors. However, the extent of the beneficial effects depends on the garlic aging process and the amount and type of chemical compounds accumulated. The main objective of this study was to assess the effect of daily intake of a well-characterized ABG extract with a standardized S-allyl-L-cysteine (SAC) yield in combination with dietary recommendations regarding CVD risk factors in individuals with moderate hypercholesterolemia. Sixty-seven hypercholesterolemic individuals with low-density lipoprotein cholesterol levels ≥115 mg/dL were randomized in a crossover, double-blind, sustained, and controlled intervention study. The participants consumed 250 mg (1.25 mg SAC)/tablet/day ABG or a placebo for 6 weeks, with 3 weeks of washout. Blood and pulse pressure and other CVD risk biomarkers were determined at the beginning and end of each intervention. At 6 weeks, ABG extract reduced diastolic blood pressure (DBP) (mean (95% CI) −5.85 (−10.5; −1.3) mm Hg) compared to the placebo, particularly in men with a DBP > 75 mm Hg. The consumption of an improved ABG extract with 1.25 mg of SAC decreased DBP, particularly in men with moderate hypercholesterolemia. The potential beneficial effects of ABG may contribute to obtaining an optimal DBP.
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Affiliation(s)
- Rosa M. Valls
- Functional Nutrition, Oxidation and Cardiovascular Diseases Group (NFOC-Salut), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, C/Sant Llorenç, 21, 43201 Reus, Spain; (R.M.V.); (P.S.); (B.A.S.-R.); (R.S.)
| | - Judit Companys
- Eurecat, Centre Tecnològic de Catalunya, Unitat de Nutrició i Salut, Av/de la Universitat, 1, 43204 Reus, Spain; (J.C.); (L.C.-P.); (L.P.-P.); (J.M.d.B.); (L.A.)
| | - Lorena Calderón-Pérez
- Eurecat, Centre Tecnològic de Catalunya, Unitat de Nutrició i Salut, Av/de la Universitat, 1, 43204 Reus, Spain; (J.C.); (L.C.-P.); (L.P.-P.); (J.M.d.B.); (L.A.)
| | - Patricia Salamanca
- Functional Nutrition, Oxidation and Cardiovascular Diseases Group (NFOC-Salut), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, C/Sant Llorenç, 21, 43201 Reus, Spain; (R.M.V.); (P.S.); (B.A.S.-R.); (R.S.)
| | - Laura Pla-Pagà
- Eurecat, Centre Tecnològic de Catalunya, Unitat de Nutrició i Salut, Av/de la Universitat, 1, 43204 Reus, Spain; (J.C.); (L.C.-P.); (L.P.-P.); (J.M.d.B.); (L.A.)
| | - Berner Andrée Sandoval-Ramírez
- Functional Nutrition, Oxidation and Cardiovascular Diseases Group (NFOC-Salut), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, C/Sant Llorenç, 21, 43201 Reus, Spain; (R.M.V.); (P.S.); (B.A.S.-R.); (R.S.)
| | - Antonio Bueno
- Lipid Unit, Clinical Analysis and Biochemistry Service, Hospital San Jorge de Huesca, 22004 Huesca, Spain; (A.B.); (J.P.)
| | - Jose Puzo
- Lipid Unit, Clinical Analysis and Biochemistry Service, Hospital San Jorge de Huesca, 22004 Huesca, Spain; (A.B.); (J.P.)
| | - Anna Crescenti
- Eurecat, Centre Tecnològic de Catalunya, Unitat de Nutrició i Salut, Av/de la Universitat, 1, 43204 Reus, Spain; (J.C.); (L.C.-P.); (L.P.-P.); (J.M.d.B.); (L.A.)
| | - Josep M. del Bas
- Eurecat, Centre Tecnològic de Catalunya, Unitat de Nutrició i Salut, Av/de la Universitat, 1, 43204 Reus, Spain; (J.C.); (L.C.-P.); (L.P.-P.); (J.M.d.B.); (L.A.)
| | - Antoni Caimari
- Eurecat, Centre Tecnològic de Catalunya, Biotechnology Area, Av/de la Universitat, 1, 43204 Reus, Spain;
| | - Aurora Salamanca
- Pharmactive Biotech Products, S.L., C/Faraday 7, 28049 Madrid, Spain; (A.S.); (A.E.E.)
| | - Alberto E. Espinel
- Pharmactive Biotech Products, S.L., C/Faraday 7, 28049 Madrid, Spain; (A.S.); (A.E.E.)
| | - Anna Pedret
- Functional Nutrition, Oxidation and Cardiovascular Diseases Group (NFOC-Salut), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, C/Sant Llorenç, 21, 43201 Reus, Spain; (R.M.V.); (P.S.); (B.A.S.-R.); (R.S.)
| | - Lluís Arola
- Eurecat, Centre Tecnològic de Catalunya, Unitat de Nutrició i Salut, Av/de la Universitat, 1, 43204 Reus, Spain; (J.C.); (L.C.-P.); (L.P.-P.); (J.M.d.B.); (L.A.)
- Nutrigenomics Research Group, Department of Biochemistry and Biotechnology, Campus Sescelades, Universitat Rovira i Virgili, 43007 Tarragona, Spain
| | - Rosa Solà
- Functional Nutrition, Oxidation and Cardiovascular Diseases Group (NFOC-Salut), Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, C/Sant Llorenç, 21, 43201 Reus, Spain; (R.M.V.); (P.S.); (B.A.S.-R.); (R.S.)
- Internal Medicine Service, Hospital Universitari Sant Joan de Reus, Av/del Doctor Josep Laporte, 2, 43204 Reus, Spain
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Bhatwalkar SB, Mondal R, Krishna SBN, Adam JK, Govender P, Anupam R. Antibacterial Properties of Organosulfur Compounds of Garlic ( Allium sativum). Front Microbiol 2021; 12:613077. [PMID: 34394014 PMCID: PMC8362743 DOI: 10.3389/fmicb.2021.613077] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 06/14/2021] [Indexed: 11/13/2022] Open
Abstract
Garlic (Allium sativum), a popular food spice and flavoring agent, has also been used traditionally to treat various ailments especially bacterial infections for centuries in various cultures around the world. The principal phytochemicals that exhibit antibacterial activity are oil-soluble organosulfur compounds that include allicin, ajoenes, and allyl sulfides. The organosulfur compounds of garlic exhibit a range of antibacterial properties such as bactericidal, antibiofilm, antitoxin, and anti-quorum sensing activity against a wide range of bacteria including multi-drug resistant (MDR) strains. The reactive organosulfur compounds form disulfide bonds with free sulfhydryl groups of enzymes and compromise the integrity of the bacterial membrane. The World Health Organization (WHO) has recognized the development of antibiotic resistance as a global health concern and emphasizes antibiotic stewardship along with the urgent need to develop novel antibiotics. Multiple antibacterial effects of organosulfur compounds provide an excellent framework to develop them into novel antibiotics. The review provides a focused and comprehensive portrait of the status of garlic and its compounds as antibacterial agents. In addition, the emerging role of new technologies to harness the potential of garlic as a novel antibacterial agent is discussed.
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Affiliation(s)
- Sushma Bagde Bhatwalkar
- Department of Biotechnology, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, India
| | - Rajesh Mondal
- Indian Council of Medical Research, Bhopal Memorial Hospital & Research Centre, Bhopal, India
| | - Suresh Babu Naidu Krishna
- Department of Biomedical and Clinical Technology, Durban University of Technology, Durban, South Africa
| | - Jamila Khatoon Adam
- Department of Biomedical and Clinical Technology, Durban University of Technology, Durban, South Africa
| | - Patrick Govender
- School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Rajaneesh Anupam
- Department of Biotechnology, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, India
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Li J, Dadmohammadi Y, Abbaspourrad A. Flavor components, precursors, formation mechanisms, production and characterization methods: garlic, onion, and chili pepper flavors. Crit Rev Food Sci Nutr 2021; 62:8265-8287. [PMID: 34028311 DOI: 10.1080/10408398.2021.1926906] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Abstract
There is an enormous demand in the food industry to shift toward natural flavors. However, most flavor molecules are significantly unstable outside their original sources. Moreover, limited studies are focused on the flavor formation mechanisms, regeneration methods, and stability, which could help facilitate this replacement by establishing a link between food processing conditions and flavor generation.This scoping review summarizes major findings related to the identification of garlic, onion, and chili pepper flavors and their precursor molecules, formation mechanisms, generation of flavors and precursors, characterization methods, and precursor stability under thermal food processing conditions. The findings confirmed that the allium flavors could be generated by alliin and isoalliin precursors through thermal processing. Also, the literature lacks detailed knowledge about chili pepper flavor's precursors, and only capsaicinoids have been reported as a thermally stable chili pepper flavor.Although numerous studies have focused on this area, there is still a lack of detailed applicable knowledge. Future investigations can be framed into (1) Development of efficient methods to generate flavors during food processing; (2) Improvement of flavors' stability; (3) Understanding the interactions of flavors and their precursors with other food ingredients and additives; and (4) Characterization of the organoleptic properties of flavors.
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Affiliation(s)
- Jieying Li
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, New York, USA
| | - Younas Dadmohammadi
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, New York, USA
| | - Alireza Abbaspourrad
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, New York, USA
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Abstract
Herbal medicine is currently widely practiced, since natural resources are reported to alleviate side effects during oncological treatment while modifying cancer cell responses at the same time. Allium vegetables and their constituents have recently been extensively investigated due to the numerous possible beneficial properties, establishing them as an additional treatment modality in different cancers. According to the epidemiological evidence, as well as many in vivo and in vitro studies, the abovementioned substances seem to be effective in the prevention and inhibition of the progression of carcinogenesis. Due to high concentrations of organosulfur compounds, which exhibit anticarcinogenic, antimicrobial, as well as anti-inflammatory properties, Allium constituents are believed to constitute a promising prevention and supportive therapy for oncological patients. Besides, it was demonstrated that a combination of Allium extracts with chemotherapy provided satisfactory clinical outcomes while at the same time being cost-effective. The aim of this review was to present and discuss currently investigated Allium extracts and their effects on several gastrointestinal cancers including gastric, colon, liver, esophageal, and pancreatic cancer.
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Li H, Xia XJ, Zhang LF, Chi JS, Liu P, Wu H, Xie XR, Tian DL, Kun KX, Gong RJ, Liu XM, Xu CX. Comparative study of allicin-containing quadruple therapy vs. bismuth-containing quadruple therapy for the treatment of Helicobacter pylori infection: a prospective randomized study. Eur J Gastroenterol Hepatol 2021; 32:194-200. [PMID: 32804837 DOI: 10.1097/meg.0000000000001896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Bismuth has antimicrobial activity and can improve the efficacy of triple Helicobacter pylori (H. pylori) therapy. Allicin added to conventional therapy for H. pylori infection also improves H. pylori eradication rates. Thus, this study aims to evaluate and compare the efficacy, safety and tolerability of allicin-containing quadruple therapy and bismuth-containing quadruple therapy and to investigate the factors that affect the eradication rates. METHODS Two hundred twenty H. pylori-infected patients were included and randomly (1:1) assigned to 14-day quadruple therapy: ilaprazole (5 mg bid), doxycycline (100 mg bid), and furazolidone (100 mg bid) with an allicin soft capsule (40 mg of DATS tid) (IDFA) or colloidal bismuth tartrate (220 mg of elemental bismuth bid) (IDFB). Eradication was confirmed by urea breath tests. Symptom improvement, adverse events, and adherence were assessed by a questionnaire. RESULTS In the intention-to-treat and per-protocol analysis, the eradication rates for IDFA and IDFB groups were 87.5% (70/80) vs. 86.3% (69/80, P = 0.815) and 91.9% (68/74) vs. 91.8% (67/73, P = 0.980) as first-line therapies; 83.3% (25/30) vs. 83.3% (25/30, P = 1) and 89.3% (25/28) vs. 88.9% (24/27, P = 1) as second-line therapies. Symptom improvement rates were 96.1% and 97.0% for IDFA and IDFB (P = 1). The adverse event rates were 10.9% in IDFA and 14.5% in IDFB groups (P = 0.418). Nausea occurred frequently in IDFB than IDFA (1.8% vs. 8.2%, P = 0.030). Smoking and sharing utensils significantly affected the efficacy. CONCLUSION Allicin-containing quadruple therapy might be regarded as a promising alternative to bismuth-containing quadruple therapy in H. pylori eradication.
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Affiliation(s)
- Huan Li
- Department of Gastroenterology, the Third Xiangya Hospital of Central South University, Changsha, Hunan Province, People's Republic of China
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Cost Effective Use of a Thiosulfinate-Enriched Allium sativum Extract in Combination with Chemotherapy in Colon Cancer. Int J Mol Sci 2020; 21:ijms21082766. [PMID: 32316312 PMCID: PMC7216288 DOI: 10.3390/ijms21082766] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 02/07/2023] Open
Abstract
In this work, we sought to investigate the effects of a thiosulfinate-enriched garlic extract, co-administered with 5-fluorouracil (5-FU) or oxaliplatin chemotherapy, on the viability of colon cancer cells (Caco-2 and HT-29). We also addressed the economic feasibility of a new combined treatment of this thiosulfinate-enriched garlic extract, with oxaliplatin that could reduce the dosage and costs of a monotherapy. The thiosulfinate-enriched garlic extract not only enhanced the impact of 5-FU and oxaliplatin (500 µM) in decreasing Caco-2 and HT-29 viability, but also showed a higher effect than standard 5-FU and oxaliplatin chemotherapy as anti-cancer agents. These results provided evidences for the combination of lyophilized garlic extract and 5-FU or oxaliplatin as a novel chemotherapy regimen in colon cancer cells that may also reduce the clinical therapy costs.
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Lengai GM, Muthomi JW, Mbega ER. Phytochemical activity and role of botanical pesticides in pest management for sustainable agricultural crop production. SCIENTIFIC AFRICAN 2020. [DOI: 10.1016/j.sciaf.2019.e00239] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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Orabi SH, Abd Eldaium D, Hassan A, Sabagh HSE, Abd Eldaim MA. Allicin modulates diclofenac sodium induced hepatonephro toxicity in rats via reducing oxidative stress and caspase 3 protein expression. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 74:103306. [PMID: 31812117 DOI: 10.1016/j.etap.2019.103306] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 11/21/2019] [Accepted: 11/22/2019] [Indexed: 06/10/2023]
Abstract
PURPOSE This study was designed to evaluate the protective effects of allicin against diclofenac sodium induced hepatonephro toxicity in rats. METHODS Sixty male Wister albino rats were assigned into six groups. The control group received calcium carbonate and corn starch. 2nd group received diclofenac sodium (2 mg/kg bw orally) for 30 days. 3rd group received allicin (45 mg/kg bw orally) for 30 days. 4th group administrated diclofenac sodium as in the 2nd group and allicin (15 mg/kg bw orally) for 30 days. 5th group received diclofenac sodium as in the 2nd group and allicin (30 mg/kg bw orally) for 30 days. 6th group received diclofenac sodium as 2nd and allicin (45 mg/kg bw orally) for 30 days. RESULTS Diclofenac sodium significantly elevated activities of serum aspartate aminotransferase and alanine aminotransferase and serum levels of creatinine and urea. In addition, it induced hyperglycemia, lipid peroxidation, pathological alteration and caspase 3 protein expression in hepatic and renal tissues. However, it decreased reduced glutathione concentration and proliferating cell nuclear antigen protein expression in hepatic tissues. In contrast, allicin modulated the diclofenac sodium induced alteration in liver and kidney functions and structures dose dependently. CONCLUSION This study indicated that allicin had potential preventive effects against diclofenac sodium induced hepatonephro toxicity in rats.
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Affiliation(s)
- Sahar Hassan Orabi
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, University of Sadat City, Sadat City, Egypt.
| | - Doaa Abd Eldaium
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, University of Sadat City, Sadat City, Egypt
| | - Azza Hassan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Cairo, Egypt
| | - Hesham Saad El Sabagh
- Department of Toxicology and Fronsic Medicine, Faculty of Veterinary Medicine, University of Sadat City, Sadat City, Egypt
| | - Mabrouk Attia Abd Eldaim
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, Menoufia University, Sheben Elkom, Egypt; Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University, 606-8502, Japan
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Qiu Q, Wu J, Quan Z, Zhang H, Qin X, Wang R, Yu J. Electrospun nanofibers of polyelectrolyte-surfactant complexes for antibacterial wound dressing application. SOFT MATTER 2019; 15:10020-10028. [PMID: 31763659 DOI: 10.1039/c9sm02043h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The development of polyelectrolyte-surfactant complexes (PESCs) has attracted extensive research interest in different fields of applications. However, the liquid state of PESCs has limited their utility in applications where solid materials are required. In this study, novel antibacterial fibers were fabricated via electrospinning PESCs in the solid state without any additives. The PESCs were prepared in aqueous mixtures of pre-hydrolyzed polyacrylonitrile (HPAN), a polyelectrolyte, and cetyltrimethyl ammonium chloride (CTAC), an antibacterial cationic surfactant, by taking advantage of the self-aggregation behavior of the polyelectrolyte and surfactant, which increased the antibacterial agent loading ability and, thus, the antibacterial activity of polymers. By release-killing and contact-killing mechanisms, the as-spun PESC nanofibrous membranes exhibited strong antibacterial ability against both Gram-positive and Gram-negative bacteria, killing 5 log CFU of E. coli and S. aureus within a contact time as short as 30 min. Furthermore, PESCs were blended with polycaprolactone (PCL) to prepare composite nanofibrous membranes as a novel wound dressing, which showed excellent antibacterial activity and favorable cytocompatibility, with the mechanical strength high enough to satisfy the clinical application requirements. The PESC fibers with durable antibacterial activity presented in the current work would be promising for medical applications.
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Affiliation(s)
- Qiaohua Qiu
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China.
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Abstract
BACKGROUND Historically, garlic containing compounds have been used on wounds to improve healing and ward off infection. Researchers have tested many of these ancient ointments, discovering that garlic is a common ingredient in those that are effective. OBJECTIVE To determine the efficacy of topical garlic on surgical wounds compared with Vaseline by analysis of visual analog scales and digital photograph analysis. MATERIALS AND METHODS Seventeen patients with 2 skin excisions applied a 30% garlic ointment to one surgical wound and Vaseline to the other surgical wound twice daily. They were followed up at 2 weeks and 4 weeks post-op. Digital photographs were taken of the sites, and wound visual analog scales were filled out by the patient and the physician. RESULTS Patients and the onsite physician stated the garlic site healed better in 59% and 65% of the wounds, respectively, at 2 weeks. At 4 weeks, the patients and the onsite physician stated the garlic site healed better in 76% and 88% of wounds, respectively. Digital photograph analysis revealed less erythema at the garlic sites (p-value = .02). CONCLUSION Surgical wounds treated with 30% garlic ointment healed with more cosmetically appealing scars than the Vaseline-treated sites.
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Doganturk M, Demiray E, Gursoy O, Yilmaz Y. Kinetics of allicin potential loss in garlic slices during convective drying. QUALITY ASSURANCE AND SAFETY OF CROPS & FOODS 2019. [DOI: 10.3920/qas2018.1343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- M. Doganturk
- Graduate School of Natural and Applied Sciences, Division of Food Engineering, Burdur Mehmet Akif Ersoy University, Istiklal Campus, 15030, Burdur, Turkey
| | - E. Demiray
- Department of Food Engineering, Faculty of Engineering, Pamukkale University, Kinikli, 20070, Denizli, Turkey
| | - O. Gursoy
- Department of Food Engineering, Faculty of Engineering and Architecture, Burdur Mehmet Akif Ersoy University, Istiklal Campus, 15030, Burdur, Turkey
| | - Y. Yilmaz
- Department of Food Engineering, Faculty of Engineering and Architecture, Burdur Mehmet Akif Ersoy University, Istiklal Campus, 15030, Burdur, Turkey
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An overview of organosulfur compounds from Allium spp.: From processing and preservation to evaluation of their bioavailability, antimicrobial, and anti-inflammatory properties. Food Chem 2019; 276:680-691. [DOI: 10.1016/j.foodchem.2018.10.068] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 10/11/2018] [Accepted: 10/12/2018] [Indexed: 01/01/2023]
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Gómez MA, Bonilla JM, Coronel MA, Martínez J, Morán-Trujillo L, Orellana SL, Vidal A, Giacaman A, Morales C, Torres-Gallegos C, Concha M, Oyarzun-Ampuero F, Godoy P, Lisoni JG, Henríquez-Báez C, Bustos C, Moreno-Villoslada I. Antibacterial activity against Staphylococcus aureus of chitosan/chondroitin sulfate nanocomplex aerogels alone and enriched with erythromycin and elephant garlic (Allium ampeloprasum L. var. ampeloprasum) extract. PURE APPL CHEM 2018. [DOI: 10.1515/pac-2016-1112] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Abstract
The antibacterial activity against Staphylococcus aureus of aerogels fabricated from colloidal suspensions of chitosan/chondroitin sulfate nanocomplexes is analyzed. Upon freeze-drying the colloidal suspensions, the aerogels presented a porous structure made of microsheets and microfibers. The aerogels could, in addition, be loaded with antimicrobial agents. Loaded with the antibiotic erythromycin, the aerogels showed crystalline deposits, affecting the topography of the samples as well as their mechanical properties, showing a decrease on the apparent Young’s modulus and hardness at 40% deformation. Loaded with elephant garlic (Allium ampeloprasum L. var. ampeloprasum) extract, the aerogels showed texturization of the microsheets and microfibers, and the higher relative mass allowed an increase on the apparent Young’s modulus and hardness at 40% deformation with respect to pristine aerogels. Unloaded aerogels showed activity against Staphylococcus aureus, including a methicillin-resistant strain. The release of erythromycin from the aerogels to an agar environment is governed by equilibrium forces with the polysaccharides, which allow modulating the load of antibiotic and its concomitant diffusion from the material. The diffusion of the active components of the elephant garlic extract did not show a dependence on the polysaccharide content, revealing a week interaction. The elephant garlic extract resulted active against the methicillin-resistant Staphylococcus aureus strain, while resistance was found for the antibiotic, revealing the therapeutic potential of the natural extract. The antimicrobial aerogels may be used for several therapeutic purposes, such as healing of infected chronic wounds.
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Affiliation(s)
- María Angélica Gómez
- Facultad de Ciencias de la Salud , Universidad Colegio Mayor de Cundinamarca , Bogotá , Colombia
| | - Jennifer Marcela Bonilla
- Facultad de Ciencias de la Salud , Universidad Colegio Mayor de Cundinamarca , Bogotá , Colombia
| | - María Alejandra Coronel
- Facultad de Ciencias de la Salud , Universidad Colegio Mayor de Cundinamarca , Bogotá , Colombia
| | - Jonathan Martínez
- Facultad de Ciencias de la Salud , Universidad Colegio Mayor de Cundinamarca , Bogotá , Colombia
| | - Luis Morán-Trujillo
- Instituto de Ciencias Químicas, Facultad de Ciencias , Universidad Austral de Chile , Valdivia , Chile
| | - Sandra L. Orellana
- Instituto de Ciencias Químicas, Facultad de Ciencias , Universidad Austral de Chile , Valdivia , Chile
| | - Alejandra Vidal
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina , Universidad Austral de Chile , Valdivia , Chile
| | - Annesi Giacaman
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina , Universidad Austral de Chile , Valdivia , Chile
| | - Carlos Morales
- Instituto de Ciencias Químicas, Facultad de Ciencias , Universidad Austral de Chile , Valdivia , Chile
| | - César Torres-Gallegos
- Instituto de Ciencias Químicas, Facultad de Ciencias , Universidad Austral de Chile , Valdivia , Chile
| | - Miguel Concha
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina , Universidad Austral de Chile , Valdivia , Chile
| | - Felipe Oyarzun-Ampuero
- Department of Sciences and Pharmaceutical Technologies , Universidad de Chile , Santiago , Chile
| | - Patricio Godoy
- Instituto de Microbiología Clínica, Facultad de Medicina , Universidad Austral de Chile , Valdivia , Chile
| | - Judit G. Lisoni
- Instituto de Ciencias Físicas y Matemáticas, Facultad de Ciencias , Universidad Austral de Chile , Valdivia , Chile
| | - Carla Henríquez-Báez
- Instituto de Ciencias Físicas y Matemáticas, Facultad de Ciencias , Universidad Austral de Chile , Valdivia , Chile
| | - Carlos Bustos
- Instituto de Ciencias Químicas, Facultad de Ciencias , Universidad Austral de Chile , Valdivia , Chile
| | - Ignacio Moreno-Villoslada
- Instituto de Ciencias Químicas, Facultad de Ciencias , Universidad Austral de Chile , Isla Teja, Casilla 567 , Valdivia , Chile , Tel.: +56 63 2293520
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Poojary MM, Putnik P, Bursać Kovačević D, Barba FJ, Lorenzo JM, Dias DA, Shpigelman A. Stability and extraction of bioactive sulfur compounds from Allium genus processed by traditional and innovative technologies. J Food Compost Anal 2017. [DOI: 10.1016/j.jfca.2017.04.007] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Allicin protects against cisplatin-induced vestibular dysfunction by inhibiting the apoptotic pathway. Eur J Pharmacol 2017; 805:108-117. [DOI: 10.1016/j.ejphar.2017.02.052] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 02/26/2017] [Accepted: 02/28/2017] [Indexed: 12/11/2022]
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Wu X, Li X, Song Y, Li H, Bai X, Liu W, Han Y, Xu L, Li J, Zhang D, Wang H, Fan Z. Allicin protects auditory hair cells and spiral ganglion neurons from cisplatin - Induced apoptosis. Neuropharmacology 2017; 116:429-440. [DOI: 10.1016/j.neuropharm.2017.01.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 12/02/2016] [Accepted: 01/02/2017] [Indexed: 12/18/2022]
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Shmuely H, Domniz N, Yahav J. Non-pharmacological treatment of Helicobacter pylori. World J Gastrointest Pharmacol Ther 2016; 7:171-178. [PMID: 27158532 PMCID: PMC4848239 DOI: 10.4292/wjgpt.v7.i2.171] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 10/12/2015] [Accepted: 02/16/2016] [Indexed: 02/06/2023] Open
Abstract
Many food and plant extracts have shown in vitro anti-Helicobacter pylori (H. pylori) activity, but are less effective in vivo. The anti-H. pylori effects of these extracts are mainly permeabilitization of the membrane, anti-adhesion, inhibition of bacterial enzymes and bacterial grown. We, herein, review treatment effects of cranberry, garlic, curcumin, ginger and pistacia gum against H. pylori in both in vitro, animal studies and in vivo studies.
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Corral MJ, Benito-Peña E, Jiménez-Antón MD, Cuevas L, Moreno-Bondi MC, Alunda JM. Allicin Induces Calcium and Mitochondrial Dysregulation Causing Necrotic Death in Leishmania. PLoS Negl Trop Dis 2016; 10:e0004525. [PMID: 27023069 PMCID: PMC4811430 DOI: 10.1371/journal.pntd.0004525] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 02/17/2016] [Indexed: 11/18/2022] Open
Abstract
Background Allicin has shown antileishmanial activity in vitro and in vivo. However the mechanism of action underlying its antiproliferative effect against Leishmania has been virtually unexplored. In this paper, we present the results obtained in L.infantum and a mechanistic basis is proposed. Methodology/Principal Finding Exposure of the parasites to allicin led to high Ca2+ levels and mitochondrial reactive oxygen species (ROS), collapse of the mitochondrial membrane potential, reduced production of ATP and elevation of cytosolic ROS. The incubation of the promastigotes with SYTOX Green revealed that decrease of ATP was not associated with plasma membrane permeabilization. Annexin V and propidium iodide (PI) staining indicated that allicin did not induce phospholipids exposure on the plasma membrane. Moreover, DNA agarose gel electrophoresis and TUNEL analysis demonstrated that allicin did not provoke DNA fragmentation. Analysis of the cell cycle with PI staining showed that allicin induced cell cycle arrest in the G2/M phase. Conclusions/Significance We conclude that allicin induces dysregulation of calcium homeostasis and oxidative stress, uncontrolled by the antioxidant defense of the cell, which leads to mitochondrial dysfunction and a bioenergetic catastrophe leading to cell necrosis and cell cycle arrest in the premitotic phase. Leishmaniasis is a vectorial parasitic disease caused by flagellate organisms from the genus Leishmania. Infection is present in over 80 countries and visceral forms are the second most fatal human parasitic disease. Control relies on chemotherapy but available drugs have important shortcomings such as toxicity, side effects, unaffordable price of the safest presentations and increasing reports of parasite resistance and clinical failures. Thus, new drugs are needed. Allicin, a molecule obtained from garlic, has shown antiproliferative effect against different cancer cells, bacteria, fungi and Protista including Leishmania. Insofar its mechanism of action is poorly known. Our results with L.infantum point towards allicin inducing high levels of intracellular calcium, redox inbalance, and mitochondrial dysfunction with reduction of ATP. These events lead to cell necrosis without evidence of apoptotic-like markers. The proposed model suggests the potential use of allicin against leishmaniasis, alone or in combination with other drugs with different mechanisms of action.
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Affiliation(s)
- María J. Corral
- Department of Animal Health, Group ICPVet, Faculty of Veterinary Medicine, University Complutense Madrid, Spain
| | - Elena Benito-Peña
- Department of Analytical Chemistry, Optical Chemosensors and Applied Photochemistry Group (GSOLFA), University Complutense Madrid, Spain
| | - M. Dolores Jiménez-Antón
- Department of Animal Health, Group ICPVet, Faculty of Veterinary Medicine, University Complutense Madrid, Spain
| | - Laureano Cuevas
- National Microbiology Centre, Institute of Health Carlos III (ISCIII), Majadahonda, Madrid, Spain
| | - María C. Moreno-Bondi
- Department of Analytical Chemistry, Optical Chemosensors and Applied Photochemistry Group (GSOLFA), University Complutense Madrid, Spain
| | - José M. Alunda
- Department of Animal Health, Group ICPVet, Faculty of Veterinary Medicine, University Complutense Madrid, Spain
- * E-mail:
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Voltammetric determination of stability constants of lead complexes with diallyl disulfide, dimethyl disulfide, and diallyl sulfide. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2015.09.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kim S, Lee S, Shin D, Yoo M. Validation of a High-Performance Liquid Chromatography Photo-Diode Array Method for the Temperature Effects on Alk(En)yl Sulfides in Garlic Extracts. J LIQ CHROMATOGR R T 2015. [DOI: 10.1080/10826076.2015.1084317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Sunyoung Kim
- Food Analysis Center, Korea Food Research Institute, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Sanghee Lee
- Food Analysis Center, Korea Food Research Institute, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Dongbin Shin
- Food Analysis Center, Korea Food Research Institute, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Miyoung Yoo
- Food Analysis Center, Korea Food Research Institute, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
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Food Processing and the Mediterranean Diet. Nutrients 2015; 7:7925-64. [PMID: 26393643 PMCID: PMC4586566 DOI: 10.3390/nu7095371] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 09/03/2015] [Accepted: 09/09/2015] [Indexed: 02/06/2023] Open
Abstract
The benefits of the Mediterranean diet (MD) for protecting against chronic disorders such as cardiovascular disease are usually attributed to high consumption of certain food groups such as vegetables, and low consumption of other food groups such as meat. The influence of food processing techniques such as food preparation and cooking on the nutrient composition and nutritional value of these foods is not generally taken into consideration. In this narrative review, we consider the mechanistic and epidemiological evidence that food processing influences phytochemicals in selected food groups in the MD (olives, olive oil, vegetables and nuts), and that this influences the protective effects of these foods against chronic diseases associated with inflammation. We also examine how the pro-inflammatory properties of meat consumption can be modified by Mediterranean cuisine. We conclude by discussing whether food processing should be given greater consideration, both when recommending a MD to the consumer and when evaluating its health properties.
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Wang H, Li X, Liu X, Shen D, Qiu Y, Zhang X, Song J. Influence of pH, concentration and light on stability of allicin in garlic (Allium sativum L.) aqueous extract as measured by UPLC. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2015; 95:1838-1844. [PMID: 25205359 DOI: 10.1002/jsfa.6884] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 07/02/2014] [Accepted: 08/18/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Garlic is one of the most important bulb vegetables and is mainly used as a spice or flavoring agent for foods. It is also cultivated for its medicinal properties, attributable to sulfur compounds, of which allicin is the most important. However, the stability of allicin in garlic extract is not well understood. In this study, using UPLC, the stability of allicin extracted in water from garlic was evaluated in phosphate buffer at different temperatures under light and dark conditions. RESULTS At room temperature, allicin in aqueous extract was most stable at pH 5-6 but degraded quickly at lower or higher pH. It began to degrade within 0.5 h and was not detectable after 2 h when the pH was higher than 11 or lower than 1.5. It degraded quickly when the temperature was higher than 40 °C and especially higher than 70 °C. At room temperature, allicin in water could be stored for 5 days without obvious degradation. Higher concentrations of allicin in solution were somewhat more stable than low concentrations. CONCLUSION Allicin extract was sensitive to pH and temperature of storage but not to light. Higher-concentration allicin solution was more stable.
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Affiliation(s)
- Haiping Wang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xixiang Li
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xinyan Liu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Di Shen
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yang Qiu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xiaohui Zhang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jiangping Song
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
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Gruhlke MCH, Hemmis B, Noll U, Wagner R, Lühring H, Slusarenko AJ. The defense substance allicin from garlic permeabilizes membranes of Beta vulgaris, Rhoeo discolor, Chara corallina and artificial lipid bilayers. Biochim Biophys Acta Gen Subj 2014; 1850:602-11. [PMID: 25484312 DOI: 10.1016/j.bbagen.2014.11.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 11/06/2014] [Accepted: 11/24/2014] [Indexed: 12/27/2022]
Abstract
BACKGROUND Allicin (diallylthiosulfinate) is the major volatile- and antimicrobial substance produced by garlic cells upon wounding. We tested the hypothesis that allicin affects membrane function and investigated 1) betanine pigment leakage from beetroot (Beta vulgaris) tissue, 2) the semipermeability of the vacuolar membrane of Rhoeo discolor cells, 3) the electrophysiology of plasmalemma and tonoplast of Chara corallina and 4) electrical conductivity of artificial lipid bilayers. METHODS Garlic juice and chemically synthesized allicin were used and betanine loss into the medium was monitored spectrophotometrically. Rhoeo cells were studied microscopically and Chara- and artificial membranes were patch clamped. RESULTS Beet cell membranes were approximately 200-fold more sensitive to allicin on a mol-for-mol basis than to dimethyl sulfoxide (DMSO) and approximately 400-fold more sensitive to allicin than to ethanol. Allicin-treated Rhoeo discolor cells lost the ability to plasmolyse in an osmoticum, confirming that their membranes had lost semipermeability after allicin treatment. Furthermore, allicin and garlic juice diluted in artificial pond water caused an immediate strong depolarization, and a decrease in membrane resistance at the plasmalemma of Chara, and caused pore formation in the tonoplast and artificial lipid bilayers. CONCLUSIONS Allicin increases the permeability of membranes. GENERAL SIGNIFICANCE Since garlic is a common foodstuff the physiological effects of its constituents are important. Allicin's ability to permeabilize cell membranes may contribute to its antimicrobial activity independently of its activity as a thiol reagent.
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Affiliation(s)
- Martin C H Gruhlke
- Department of Plant Physiology (Bio III), RWTH Aachen University, 52056 Aachen, Germany
| | - Birgit Hemmis
- FB5 Biophysik, Universität Osnabrück, 49069 Osnabrück, Germany
| | - Ulrike Noll
- Department of Plant Physiology (Bio III), RWTH Aachen University, 52056 Aachen, Germany
| | - Richard Wagner
- FB5 Biophysik, Universität Osnabrück, 49069 Osnabrück, Germany
| | - Hinrich Lühring
- Institut für Pflanzenwissenschaften (IBG-2), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Alan J Slusarenko
- Department of Plant Physiology (Bio III), RWTH Aachen University, 52056 Aachen, Germany.
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Bonifácio BV, dos Santos Ramos MA, da Silva PB, Bauab TM. Antimicrobial activity of natural products against Helicobacter pylori: a review. Ann Clin Microbiol Antimicrob 2014; 13:54. [PMID: 25406585 PMCID: PMC4243293 DOI: 10.1186/s12941-014-0054-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 10/24/2014] [Indexed: 12/21/2022] Open
Abstract
Throughout the genetic and physiological evolution of microorganisms, the microbiological sciences have been expanding the introduction of new therapeutic trials against microbial diseases. Special attention has been paid to the bacterium Helicobacter pylori, which induces gastric infections capable of causing damage, ranging from acute and chronic gastritis to the development of gastric cancer and death. The use of compounds with natural origins has gained popularity in scientific research focused on drug innovation against H. pylori because of their broad flexibility and low toxicity. The aim of this study was to describe the use of natural products against H. pylori in order to clarify important parameters for related fields. The study demonstrated the vast therapeutic possibilities for compounds originating from natural sources and revealed the need for innovations from future investigations to expand the therapeutic arsenal in the fight against H. pylori infection.
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Affiliation(s)
- Bruna Vidal Bonifácio
- Department of Biological Sciences, School of Pharmaceutical Sciences, São Paulo State University, Rodovia Araraquara-Jaú, km 01, Araraquara, SP, CEP 14801-902, Brazil.
| | - Matheus Aparecido dos Santos Ramos
- Department of Biological Sciences, School of Pharmaceutical Sciences, São Paulo State University, Rodovia Araraquara-Jaú, km 01, Araraquara, SP, CEP 14801-902, Brazil.
| | - Patricia Bento da Silva
- Department of Drugs and Medicine, School of Pharmaceutical Sciences, São Paulo State University, Rodovia Araraquara-Jaú, km 01, Araraquara, SP, CEP 14801-902, Brazil.
| | - Taís Maria Bauab
- Department of Biological Sciences, School of Pharmaceutical Sciences, São Paulo State University, Rodovia Araraquara-Jaú, km 01, Araraquara, SP, CEP 14801-902, Brazil.
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Borlinghaus J, Albrecht F, Gruhlke MCH, Nwachukwu ID, Slusarenko AJ. Allicin: chemistry and biological properties. Molecules 2014; 19:12591-618. [PMID: 25153873 PMCID: PMC6271412 DOI: 10.3390/molecules190812591] [Citation(s) in RCA: 374] [Impact Index Per Article: 37.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 07/24/2014] [Accepted: 07/28/2014] [Indexed: 12/15/2022] Open
Abstract
Allicin (diallylthiosulfinate) is a defence molecule from garlic (Allium sativum L.) with a broad range of biological activities. Allicin is produced upon tissue damage from the non-proteinogenic amino acid alliin (S-allylcysteine sulfoxide) in a reaction that is catalyzed by the enzyme alliinase. Current understanding of the allicin biosynthetic pathway will be presented in this review. Being a thiosulfinate, allicin is a reactive sulfur species (RSS) and undergoes a redox-reaction with thiol groups in glutathione and proteins that is thought to be essential for its biological activity. Allicin is physiologically active in microbial, plant and mammalian cells. In a dose-dependent manner allicin can inhibit the proliferation of both bacteria and fungi or kill cells outright, including antibiotic-resistant strains like methicillin-resistant Staphylococcus aureus (MRSA). Furthermore, in mammalian cell lines, including cancer cells, allicin induces cell-death and inhibits cell proliferation. In plants allicin inhibits seed germination and attenuates root-development. The majority of allicin's effects are believed to be mediated via redox-dependent mechanisms. In sub-lethal concentrations, allicin has a variety of health-promoting properties, for example cholesterol- and blood pressure-lowering effects that are advantageous for the cardio-vascular system. Clearly, allicin has wide-ranging and interesting applications in medicine and (green) agriculture, hence the detailed discussion of its enormous potential in this review. Taken together, allicin is a fascinating biologically active compound whose properties are a direct consequence of the molecule's chemistry.
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Affiliation(s)
- Jan Borlinghaus
- Department of Plant Physiology, RWTH Aachen University, 52056 Aachen, Germany
| | - Frank Albrecht
- Department of Plant Physiology, RWTH Aachen University, 52056 Aachen, Germany
| | - Martin C H Gruhlke
- Department of Plant Physiology, RWTH Aachen University, 52056 Aachen, Germany
| | - Ifeanyi D Nwachukwu
- Department of Human Nutritional Sciences, University of Manitoba, Winnipeg, MB R3T2N2, Canada
| | - Alan J Slusarenko
- Department of Plant Physiology, RWTH Aachen University, 52056 Aachen, Germany.
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Zhang Z, Xu G, Ma M, Yang J, Liu X. Dietary fiber intake reduces risk for gastric cancer: a meta-analysis. Gastroenterology 2013; 145:113-120.e3. [PMID: 23567349 DOI: 10.1053/j.gastro.2013.04.001] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 03/18/2013] [Accepted: 04/01/2013] [Indexed: 01/11/2023]
Abstract
BACKGROUND & AIMS The association between dietary fiber intake and gastric cancer risk has been investigated by many studies, with inconclusive results. We conducted a meta-analysis of case-control and cohort studies to analyze this association. METHODS Relevant studies were identified by searching PubMed and Embase through October 2012. We analyzed 21 articles, which included 580,064 subjects. Random-effects models were used to estimate summary relative risks. Dose-response, subgroup, sensitivity, meta-regression, and publication bias analyses were performed. RESULTS The summary odds ratios of gastric cancer for the highest, compared with the lowest, dietary fiber intake was 0.58 (95% confidence interval, 0.49-0.67) with significant heterogeneity among studies (P < .001, I(2) = 62.2%). Stratified analysis for study design, geographic area, source and type of fiber, Lauren's classification, publication year, sample size, and quality score of study yielded consistent results. Dose-response analysis associated a 10-g/day increment in fiber intake with a significant (44%) reduction in gastric cancer risk. Sensitivity analysis restricted to studies with control for conventional risk factors produced similar results, and omission of any single study had little effect on the combined risk estimate. CONCLUSIONS In a meta-analysis, we show that dietary fiber intake is associated inversely with gastric cancer risk; the effect probably is independent of conventional risk factors. The direction of the protective association of dietary fiber was consistent among all studies, but the absolute magnitude was less certain because of heterogeneity among the studies. Further studies therefore are required to establish this association.
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Affiliation(s)
- Zhizhong Zhang
- Department of Neurology, Jinling Hospital, Nanjing University School of Medicine, Jiangsu Province, China
| | - Gelin Xu
- Department of Neurology, Jinling Hospital, Nanjing University School of Medicine, Jiangsu Province, China
| | - Minmin Ma
- Department of Neurology, Jinling Hospital, Nanjing University School of Medicine, Jiangsu Province, China
| | - Jie Yang
- Department of Neurology, Nanjing First Hospital, Nanjing, China
| | - Xinfeng Liu
- Department of Neurology, Jinling Hospital, Nanjing University School of Medicine, Jiangsu Province, China.
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Jesús Corral-Caridad M, Moreno I, Toraño A, Domínguez M, Alunda JM. Effect of allicin on promastigotes and intracellular amastigotes of Leishmania donovani and L. infantum. Exp Parasitol 2012; 132:475-82. [PMID: 22995646 DOI: 10.1016/j.exppara.2012.08.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Revised: 07/06/2012] [Accepted: 08/28/2012] [Indexed: 10/27/2022]
Abstract
Anti-leishmanial activity of allicin (=diallyl thiosulphinate) has been tested in vitro against promastigotes and intracellular amastigotes of Leishmania donovani and Leishmania infantum. Macrophage infections have been carried out in vitro in the murine cell line J774 and ex vivo with peritoneal macrophages from BALB/c mice with a modified method to isolate metacyclic promastigotes. The compound has shown a significant in vitro effect on the multiplication of promastigotes of L. donovani and L. infantum in a time- and dose-dependent manner. It has been shown for the first time the inhibition of multiplication of intracellular amastigotes of Leishmania by allicin. Inhibitory concentrations of the compound were in the micromolar range (10-30 μM) for both Leishmania species. Antileishmanial effect of allicin apparently was not related to products of degradation of the molecule as assessed by mass spectrometry analysis. Inhibitory activity of allicin against promastigotes and intracellular amastigotes increased when the compound was added to the cultures every 24 h. Two administrations of 5 μM allicin inhibited by ca. 50% the proliferation of Leishmania amastigotes. Low toxicity for mammalian cells of this compound suggests the interest of exploring the value of allicin in combined therapy against leishmanial infections.
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Liang Y, Zhang JJ, Zhang QB, Wang ZX, Yin ZN, Li XX, Chen J, Ye LM. Release test of alliin/alliinase double-layer tablet by HPLC-Allicin determination. J Pharm Anal 2012; 3:187-192. [PMID: 29403815 PMCID: PMC5760948 DOI: 10.1016/j.jpha.2012.08.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2012] [Accepted: 08/15/2012] [Indexed: 11/29/2022] Open
Abstract
A simple, precise and accurate method was developed and validated for the determination of allicin release from alliin/alliinase double-layer tablets. According to Appendix XC II of Chinese Pharmacopoeia 2010 edition Volume II, a small glass-method was adopted at the rotational speed of 100 r/min using 100 mL phosphate buffer (pH 6.8) as release medium. The release amount was determined by HPLC with a C18 column (250 mm×4.6 mm, 5 μm) using the mobile phase consisting of methanol −0.4% carboxylic acid (65:35) at a flow rate of 1 mL/min and UV detection at 242 nm. The current method demonstrates good linearity over the range 4.052–405.2 μg/mL (r2=0.9999) with an average recovery of 105.5%(RSD=1.25%). The accumulative release of alliin/alliinase double-layer tablets had good homogeneity for within- and between-batches. The method established is simple, accurate and repeatable for the determination of allicin release from alliin/alliinase double-layer tablets.
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Affiliation(s)
- Yan Liang
- West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Jing-Jing Zhang
- West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Qi-Bing Zhang
- West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Zhong-Xia Wang
- West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Zong-Ning Yin
- West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xin-Xia Li
- Xinjiang Medical University, Wulumuqi 830000, China
| | - Jian Chen
- Xinjiang Medical University, Wulumuqi 830000, China
| | - Li-Ming Ye
- West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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Zhou Y, Zhuang W, Hu W, Liu GJ, Wu TX, Wu XT. Consumption of large amounts of Allium vegetables reduces risk for gastric cancer in a meta-analysis. Gastroenterology 2011; 141:80-9. [PMID: 21473867 DOI: 10.1053/j.gastro.2011.03.057] [Citation(s) in RCA: 109] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Revised: 03/11/2011] [Accepted: 03/23/2011] [Indexed: 02/05/2023]
Abstract
BACKGROUND & AIMS The chemopreventive effects of Allium vegetables (onions, garlic, shallots, leeks, chives, and so forth) have been studied extensively, although their effect on gastric cancer risk is controversial. We performed a meta-analysis of cohort and case-control studies to analyze this association. METHODS We searched MEDLINE for studies of Allium vegetable consumption and gastric cancer that were published in any language, from January 1, 1966, to September 1, 2010. We analyzed 19 case-control and 2 cohort studies, of 543,220 subjects. We pooled the relative risks from individual studies using a random-effects model and performed dose-response, heterogeneity, and publication bias analyses. RESULTS In a pooled analysis of all studies, consumption of large amounts of Allium vegetables (in a comparison of the highest and lowest consumption groups) reduced the risk for gastric cancer (odds ratio, 0.54; 95% confidence interval, 0.43-0.65). Specific analyses for onion, garlic, leek, Chinese chive, scallion, garlic stalk, and Welsh onion yielded similar results, except for onion leaf. The estimated summary odds ratio for an increment of 20 g/day of Allium vegetables consumed (approximately the average weight of 1 garlic bulb) was 0.91 (95% confidence interval, 0.88-0.94), based on case-control studies from the dose-response meta-analysis. CONCLUSIONS In a meta-analysis, consumption of high levels of Allium vegetables reduced the risk for gastric cancer risk. Because of potential confounding factors and exposure misclassification, further studies are required to establish this association.
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Affiliation(s)
- Yong Zhou
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China
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Mitra J, Shrivastava SL, Rao PS. Onion dehydration: a review. Journal of Food Science and Technology 2011; 49:267-77. [PMID: 23729847 DOI: 10.1007/s13197-011-0369-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 03/28/2011] [Accepted: 04/01/2011] [Indexed: 10/18/2022]
Abstract
Onion (Allium cepa), a very commonly used vegetable, ranks third in the world production of major vegetables. Apart from imparting a delicious taste and flavour due to its pungency in many culinary preparations, it serves several medicinal purposes also. Processing and preservation of onion by suitable means is a major thrust area since a long time. The various kinds of treatments followed for dehydration of onion such as convective air drying, solar drying, fluidized bed drying, vacuum microwave drying, infrared drying and osmotic drying are reviewed here. These techniques are mainly used for preservation and value addition of onion. Several researchers have tried for decades to model the drying kinetics and quality parameters, which are also compiled here briefly.
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Affiliation(s)
- Jayeeta Mitra
- Department of Agricultural and Food Engineering, Indian Institute of Technology, Kharagpur, 721302 India
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Abstract
Hyperemesis gravidarum (hyperemesis), characterised by severe nausea and vomiting in early pregnancy, has an unknown aetiology. The aim of the present study was to investigate food and nutrient intake before pregnancy and the risk of developing hyperemesis in women participating in the Norwegian Mother and Child Cohort Study. From 1999 to 2002, a total of 7710 pregnant women answered a FFQ about their diet during the 12 months before becoming pregnant and a questionnaire about illnesses during pregnancy, including hyperemesis. Only women who were hospitalised for hyperemesis were included as cases. Nutrient intakes during the year before pregnancy did not differ between the ninety-nine women who developed hyperemesis and the 7611 who did not. However, the intake of seafood, allium vegetables and water was significantly lower among women who developed hyperemesis than among women in the non-hyperemesis group. Relative risks of hyperemesis were approximated as OR, and confounder control was performed with multiple logistic regression. Women in the upper tertile of seafood consumption had a lower risk of developing hyperemesis than those in the lower tertile (OR 0·56, 95 % CI 0·32, 0·98), and women in the second tertile of water intake had a lower risk of developing hyperemesis than those in the first tertile (OR 0·43, 95 % CI 0·25, 0·73). The findings suggest that a moderate intake of water and adherence to a healthy diet that includes vegetables and fish are associated with a lower risk of developing hyperemesis.
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Gruhlke MCH, Portz D, Stitz M, Anwar A, Schneider T, Jacob C, Schlaich NL, Slusarenko AJ. Allicin disrupts the cell's electrochemical potential and induces apoptosis in yeast. Free Radic Biol Med 2010; 49:1916-24. [PMID: 20883774 DOI: 10.1016/j.freeradbiomed.2010.09.019] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2010] [Revised: 09/09/2010] [Accepted: 09/20/2010] [Indexed: 10/19/2022]
Abstract
The volatile substance allicin gives crushed garlic (Allium sativum) its characteristic odor and is a pro-oxidant that undergoes thiol-disulfide exchange reactions with -SH groups in proteins and glutathione. The antimicrobial activity of allicin is suspected to be due to the oxidative inactivation of essential thiol-containing enzymes. We investigated the hypothesis that at threshold inhibitory levels allicin can shunt yeast cells into apoptosis by altering their overall redox status. Yeast cells were treated either with chemically synthesized, pure allicin or with allicin in garlic juice. Allicin-dependent cell oxidation was demonstrated with a redox-sensitive GFP construct and the shift in cellular electrochemical potential (E(hc)) from less than -215 to -181mV was calculated using the Nernst equation after the glutathione/glutathione disulfide couple (2GSH/GSSG) in the cell was quantified. Caspase activation occurred after allicin treatment, and yeast expressing a human antiapoptotic Bcl-XL construct was rendered more resistant to allicin. Also, a yeast apoptosis-inducing factor deletion mutant was more resistant to allicin than wild-type cells. We conclude that allicin in garlic juice can activate apoptosis in yeast cells through its oxidizing properties and that this presents an alternative cell-killing mechanism to the previously proposed specific oxidative inactivation of essential enzymes.
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Affiliation(s)
- Martin C H Gruhlke
- Department of Plant Physiology (Bio III), RWTH Aachen University, Aachen, Germany
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Liu S, Sun Y, Li W, Yu H, Li X, Liu Z, Zeng J, Zhou Y, Chen C, Jia J. The antibacterial mode of action of allitridi for its potential use as a therapeutic agent against Helicobacter pylori infection. FEMS Microbiol Lett 2009; 303:183-9. [PMID: 20030729 DOI: 10.1111/j.1574-6968.2009.01877.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Eradication of Helicobacter pylori with traditional therapy often fails in clinical treatment. As a result, a novel efficacious therapeutic agent is strongly needed. Allitridi, a proprietary garlic derivative, has been successfully used to treat both systemic fungal and bacterial infections in China. Our previous study has shown a dose-dependent inhibitory effect of allitridi on H. pylori growth. However, the antibacterial mode of action of allitridi is still unclear. Proteomic analysis was used to study the global protein alterations induced by allitridi. A total of 21 protein spots were identified to be differentially expressed. Our results indicated that the bacteriostatic mechanism of allitridi in H. pylori can be attributed to its multitarget inhibitory effects in energy metabolism and biosynthesis including amino acid biosynthesis, protein synthesis, mRNA synthesis and fatty acid biosynthesis. Allitridi can also disturb the expression of antioxidant proteins and decrease the production of virulence factors. Western blot analysis showed that allitridi at subinhibitory concentrations can potently suppress the production of CagA and VacA. Our investigations on the antibacterial mode of action of allitridi provide an insight into the potential use of allitridi as a therapeutic agent against H. pylori infection.
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Affiliation(s)
- Shuang Liu
- Department of Microbiology and Key Laboratory for Experimental Teratology of Chinese Ministry of Education, School of Medicine, Shandong University, Jinan, Shandong, China
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Butt MS, Sultan MT, Butt MS, Iqbal J. Garlic: nature's protection against physiological threats. Crit Rev Food Sci Nutr 2009; 49:538-51. [PMID: 19484634 DOI: 10.1080/10408390802145344] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Currently reliance on natural products is gaining popularity to combat various physiological threats including oxidative stress, cardiovascular complexities, cancer insurgence, and immune dysfunction. The use of traditional remedies may encounter more frequently due to an array of scientific evidence in their favor. Garlic (Allium sativum) holds a unique position in history and was recognized for its therapeutic potential. Recent advancements in the field of immunonutrition, physiology, and pharmacology further explored its importance as a functional food against various pathologies. Extensive research work has been carried out on the health promoting properties of garlic, often referred to its sulfur containing metabolites i.e. allicin and its derivatives. Garlic in its preparations are effective against health risks and even used as dietary supplements such as age garlic extract (AGE) and garlic oil etc. Its components/formulations can scavenge free radicals and protect membranes from damage and maintains cell integrity. It also provides cardiovascular protection mediated by lowering of cholesterol, blood pressure, anti-platelet activities, and thromboxane formation thus providing protection against atherosclerosis and associated disorders. Besides this, it possesses antimutagenic and antiproliferative properties that are interesting in chemopreventive interventions. Several mechanisms have been reviewed in this context like activation of detoxification phase-I and II enzymes, reactive oxygen species (ROS) generation, and reducing DNA damage etc. Garlic could be useful in preventing the suppression of immune response associated with increased risk of malignancy as it stimulates the proliferation of lymphocytes, macrophage phagocytosis, stimulates the release of interleukin-2, tumor necrosis factor-alpha and interferon-gamma, and enhances natural killer cells. In this paper much emphasis has been placed on garlic's ability to ameliorate oxidative stress, core role in cardiovascular cure, chemopreventive strategies, and indeed its prospective as immune booster.
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Affiliation(s)
- Masood Sadiq Butt
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan.
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Costa M, Costa P, Silva J, Maia R, Moreira J, Carvalho R. Utilização do óleo de alho e da amoxilina, metronidazol e omeprazol no controle de Helicobacter spp. em cães. ARQ BRAS MED VET ZOO 2009. [DOI: 10.1590/s0102-09352009000200012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Avaliaram-se a eficácia do óleo de alho e da terapia tripla (amoxicilina, metronidazol e omeprazol) no tratamento de 21 cães infectados por Helicobacter spp., que apresentavam alterações histológicas nas biopsias endoscópicas da mucosa gástrica e reação positiva ao teste de urease. Os animais foram distribuídos, aleatoriamente, em três grupos de sete cães, os quais receberam os seguintes tratamentos: grupo 1 - cápsulas vazias; grupo 2 - 500mg de óleo de alho em cápsulas, diariamente, por um período de 30 dias; grupo 3 - amoxicilina, metronidazol e omeprazol, respectivamente, nas doses de 20mg/kg a cada 12 horas, 25mg/kg e 20mg/kg a cada 24 horas, durante 15 dias. Ao final dos tratamentos, os cães foram submetidos à endoscopia com realização de biopsias da mucosa gástrica. O tratamento com amoxicilina, metronidazol e omeprazol resultou em erradicação de Helicobacter spp. tanto na região fúndica quanto na pilórica. No grupo 2, houve redução da degeneração glandular na região fúndica em dois animais e em outros dois na pilórica. O tratamento com óleo de alho não foi eficaz em erradicar Helicobacter spp., apenas reduziu a sua colonização em quatro dos animais tratados.
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Allicin, a major component of garlic, inhibits apoptosis in vital organs in rats with trauma/hemorrhagic shock. Crit Care Med 2008; 36:3226-32. [PMID: 18936703 DOI: 10.1097/ccm.0b013e31818f2103] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Allicin is believed to be the main component responsible for the biological activity of garlic. The regulation of cell apoptosis may have therapeutic potential for trauma/hemorrhagic shock, and previous studies have demonstrated that allicin exerts protective effects against tissue ischemia-reperfusion injury. Therefore, this study examined the effects of allicin on apoptosis-related organ damage, induced by trauma/hemorrhagic shock. METHODS Studies were performed on an in vivo model of spontaneously breathing rats with induced trauma/hemorrhagic shock; the left lower lobe of the lungs, left kidney, and intestine were resected, and the rats were subjected to femur fracture, ischemia for 30 mins, and reperfusion for 20 mins. Allicin (30 microg/kg) was administered during reperfusion. RESULTS Allicin administered during reperfusion markedly attenuated injury and apoptosis of the lungs, kidneys, and intestine and decreased the concentrations of lactic acid and creatinine, the number of in situ TdT-mediated dUTP nick-end labeling-positive cells, and the activity and expression of caspase-3 and -9 (as determined by Western blot). Furthermore, immunohistochemistry and Western blot performed 24 hrs after reperfusion revealed increases in the levels of nuclear factor kappaB, phosphorylated p38, and extracellular signal-regulated kinase 1 mitogen-activated protein kinase in the allicin-untreated group when compared with the sham rats. Allicin treatment downregulated the levels of nuclear factor kappaB and phosphorylated p38 mitogen-activated protein kinase but did not modify those of phosphorylated extracellular signal-regulated kinase 1 mitogen-activated protein kinase. CONCLUSION Allicin attenuates tissue injury and inhibits trauma/hemorrhagic shock- and reperfusion-induced apoptosis in several important organs via the p38 mitogen-activated protein kinase signal transduction pathway that functions to stimulate the activation of nuclear factor-kappaB, caspase-3 and -9, but not of extracellular signal-regulated kinase 1 mitogen-activated protein kinase.
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Al-Waili NS, Saloom KY, Akmal M, Al-Waili TN, Al-Waili AN, Al-Waili H, Ali A, Al-Sahlani K. Effects of Heating, Storage, and Ultraviolet Exposure on Antimicrobial Activity of Garlic Juice. J Med Food 2007; 10:208-12. [PMID: 17472490 DOI: 10.1089/jmf.2005.067] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
This study was designed to investigate the effect of heating, storage, and ultraviolet exposure on antimicrobial activity of garlic juice and its bacteriocidal activity against common human pathogens. Antimicrobial activity of fresh garlic juice was tested against Escherichia coli, Staphylococcus aureus, Streptococcus hemolyticus B, S. hemolyticus A, Klebsiella sp., Shigella dysenteriae, and Candida albicans using the disc method. The dilution method was performed by addition of garlic juice to broth media to obtain 1-100% concentrations as vol/vol or wt/vol. Garlic juice was used after 24 hours of storage at 4 degrees C, heating to 100 degrees C for 5 minutes, 10 minutes, 30 minutes, and 60 minutes, heating to 80 degrees C for 60 minutes, and 4 hours of exposure to ultraviolet light. Re-culture of specimens taken from garlic-induced negative media was performed in fresh broth free of garlic juice. Results showed that all the isolates were sensitive to fresh garlic juice; the most sensitive was C. albicans, and the least sensitive was S. hemolyticus A. Heating to 100 degrees C for 30 and 60 minutes completely abolished the antimicrobial activity, while heating for 5 and 10 minutes, storage for 24 hours, and 4 hours of ultraviolet exposure decreased it. Garlic juice was bactericidal at concentrations of 5% and more. Thus garlic juice has marked antimicrobial activity that makes it a potential agent to be tested in clinical trials. The antimicrobial activity was compromised by storage and heating; therefore it is advisable to use fresh garlic and avoid boiling it for more than 5 minutes during cooking.
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Affiliation(s)
- Noori S Al-Waili
- Al-Waili's Charitable Foundation for Science and Trading, New York, New York, USA.
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Cho SJ, Rhee DK, Pyo S. Allicin, a major component of garlic, inhibits apoptosis of macrophage in a depleted nutritional state. Nutrition 2006; 22:1177-84. [PMID: 17027231 DOI: 10.1016/j.nut.2006.08.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2006] [Revised: 08/17/2006] [Accepted: 08/17/2006] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Allicin is believed to be the main component responsible for the biological activity of garlic. The regulation of cell death might have therapeutic potential in many diseases, and previous studies have demonstrated that allicin stimulates the functional activity of macrophages. Therefore, this study examined the effects of allicin on the apoptosis of macrophages induced by serum- and amino acid-free culture. METHODS The apoptosis of peritoneal macrophages was examined after pretreating them with allicin and incubating them in a depleted nutritional state. The rate of apoptosis was determined using propidium iodide staining analysis using flow cytometry, DNA fragmentation, and a caspase-3 assay. Western blot analysis was used to examine the changes in the pro- or antiapoptotic protein expression levels. RESULTS DNA fragmentation and propidium iodide staining analyses revealed that allicin decreased the malnutrition-induced apoptosis of macrophages. The level of Bax expression, the amount of cytochrome-c released from the mitochondria, and the caspase-3 activity were also lower in the allicin-treated macrophages than in the untreated macrophages in a depleted nutritional state. Moreover, the MEK (mitogen-activated protein kinase/extracellular signal-regulated kinase-kinase) inhibitor suppressed the allicin-induced inhibition of apoptosis in a depleted nutritional state and allicin increased the level of ERK1/2 phosphorylation. CONCLUSION Allicin inhibits the apoptosis of macrophages in a depleted nutritional state through the MEK/extracellular signal-regulated kinase pathway.
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Affiliation(s)
- Seong-Jun Cho
- Division of Immunopharmacology, College of Pharmacy, University of Sungkyunkwan, Suwon, Kyunggi-do, South Korea
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Jacques SL. Ratio of entropy to enthalpy in thermal transitions in biological tissues. JOURNAL OF BIOMEDICAL OPTICS 2006; 11:041108. [PMID: 16965136 DOI: 10.1117/1.2343437] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Thermal transitions in biological tissues that have been reported in the literature are summarized in terms of the apparent molar entropy (DeltaS) and molar enthalpy (DeltaH) involved in the transition. A plot of DeltaS versus DeltaH for all the data yields a straight line, consistent with the definition of free energy, DeltaG=DeltaH+TDeltaS. Various bonds may be involved in cooperative bond breakage during thermal transitions; however, for the sake of description, the equivalent number of cooperative hydrogen bonds can be cited. Most of the tissue data behave as if 10 to 20 hydrogen bonds are cooperatively broken during coagulation, with one transition, the expression of heat shock protein, involving 90 cooperative hydrogen bonds. The data are consistent with DeltaS=a+bDeltaH, where a=-327.5 J(mol K) and b=31.47 x 10(-4) K(-1). If each additional hydrogen bond adds 19 x 10(3) Jmol to DeltaH, then each additional bond adds 59.8 J(mol K) to DeltaS. Hence, the dynamics of irreversible thermal transitions can be described in terms of one free parameter, the apparent number of cooperative hydrogen bonds broken during the transition.
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Affiliation(s)
- Steven L Jacques
- Oregon Health and Science University, Department of Dermatology, 20000 NW Walker Road, Beaverton, Oregon 97006, USA.
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O'Mahony R, Al-Khtheeri H, Weerasekera D, Fernando N, Vaira D, Holton J, Basset C. Bactericidal and anti-adhesive properties of culinary and medicinal plants against Helicobacter pylori. World J Gastroenterol 2006; 11:7499-507. [PMID: 16437723 PMCID: PMC4725184 DOI: 10.3748/wjg.v11.i47.7499] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the bactericidal and anti-adhesive properties of 25 plants against Helicobacter pylori (H. pylori). METHODS Twenty-five plants were boiled in water to produce aqueous extracts that simulate the effect of cooking. The bactericidal activity of the extracts was assessed by a standard kill-curve with seven strains of H. pylori. The anti-adhesive property was assessed by the inhibition of binding of four strains of FITC-labeled H. pylori to stomach sections. RESULTS Of all the plants tested, eight plants, including Bengal quince, nightshade, garlic, dill, black pepper, coriander, fenugreek and black tea, were found to have no bactericidal effect on any of the isolates. Columbo weed, long pepper, parsley, tarragon, nutmeg, yellow-berried nightshade, threadstem carpetweed, sage and cinnamon had bactericidal activities against H. pylori, but total inhibition of growth was not achieved in this study. Among the plants that killed H. pylori, turmeric was the most efficient, followed by cumin, ginger, chilli, borage, black caraway, oregano and liquorice. Moreover, extracts of turmeric, borage and parsley were able to inhibit the adhesion of H. pylori strains to the stomach sections. CONCLUSION Several plants that were tested in our study had bactericidal and/or anti-adhesive effects on H. pylori. Ingestion of the plants with anti-adhesive properties could therefore provide a potent alternative therapy for H. pylori infection, which overcomes the problem of resistance associated with current antibiotic treatment.
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Affiliation(s)
- Rachel O'Mahony
- Centre for Infectious Diseases and International Health, Royal Free and University College London Medical School, Windeyer Building, 46 Cleveland Street, London, W1P 6DB, United Kingdom.
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Abstract
Despite years of experience with Helicobacter pylori treatment, the ideal regimen for treating the infection has not been found. The most effective eradication treatment is the combination of a proton pump inhibitor with antibiotics, but 10-20% of the patients fail to obtain eradication of the infection. Antibiotic resistance is a major factor affecting the outcome of treatment. Non-antibiotic therapies, including phytomedicines, probiotics, and antioxidants, have been increasingly investigated as potential alternatives for the treatment of H. pylori. In this article, we review the non-antibiotic therapies for H. pylori infection.
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Affiliation(s)
- Mayra M Kamiji
- Departamento de Clinica Medica, Faculdade de Medicina de Ribeirao Preto, Universidade de Sao Paulo, Ribeirao Preto-SP, Brazil.
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