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Allicin

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https://www.readbyqxmd.com/read/28443813/vacuolar-h-atpase-subunit-vma1p-functions-as-the-molecular-ligand-in-the-vacuole-targeting-fungicidal-activity-of-polymyxin-b
#1
Maki Iida, Keiichi Yamada, Yoshiya Nango, Yoshihiro Yamaguchi, Akira Ogita, Ken-Ichi Fujita, Toshio Tanaka
Polymyxin B (PMB) is a cationic cyclic peptide that can selectively inhibit the growth of Gram-negative bacteria by disrupting the outer membrane permeability barrier through binding to lipopolysaccharide (LPS). Here, a fluorescent PMB derivative (PMB-Ds) was applied to visually confirm the vacuole as a direct lethal target of PMB against fungal cells, which lack LPS. PMB-Ds could be visualized in the normal rounded vacuolar membrane of Saccharomyces cerevisiae cells, suggesting the presence of a molecular ligand assisting the vacuole-targeting mobilization of the peptide in the organism...
April 2017: Microbiology
https://www.readbyqxmd.com/read/28440421/allicin-induces-the-upregulation-of-abca1-expression-via-ppar%C3%AE-lxr%C3%AE-signaling-in-thp-1-macrophage-derived-foam-cells
#2
Xiao-Long Lin, Hui-Jun Hu, Yuan-Bo Liu, Xue-Mei Hu, Xiao-Juan Fan, Wei-Wen Zou, Yong-Quan Pan, Wen-Quan Zhou, Min-Wen Peng, Cai-Hong Gu
Allicin is considered anti-atherosclerotic due to its antioxidant and anti-inflammatory effects, which makes it an important drug for the prevention and treatment of atherosclerosis. However, the effects of allicin on foam cells are unclear. Thus, in this study, we examined the effects of allicin on lipid accumulation via peroxisome proliferator-activated receptor γ (PPARγ)/liver X receptor α (LXRα) in THP‑1 macrophage-derived foam cells. THP‑1 cells were exposed to 100 nM phorbol myristate acetate (PMA) for 24 h, and then to oxydized low-density lipoprotein (ox-LDL; 50 mg/ml) to induce foam cell formation...
April 11, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28421744/a-mini-hip-hop-assay-uncovers-a-central-role-for-copper-and-zinc-in-the-antifungal-mode-of-action-of-allicin
#3
Thomas A K Prescott, Barry Panaretou
Garlic contains the organosulfur compound allicin which exhibits potent antifungal activity. Here we demonstrate the use of a highly simplified yeast chemical genetic screen to characterize its mode of action. By screening 24 validated yeast gene deletion "signature" strains for which hypersensitivity is characteristic for common antifungal modes of action, yeast lacking the high affinity Cu(2+) transporter Ctr1 was found to be hypersensitive to allicin. Focusing on transition metal related genes identified two more hypersensitive strains lacking the Cu(2+) and Zn(2+) transcription factors Mac1 and Zap1...
April 26, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28259711/allicin-protects-against-cisplatin-induced-vestibular-dysfunction-by-inhibiting-the-apoptotic-pathway
#4
Xianmin Wu, Jing Cai, Xiaofei Li, He Li, Jianfeng Li, Xiaohui Bai, Wenwen Liu, Yuechen Han, Lei Xu, Daogong Zhang, Haibo Wang, Zhaomin Fan
Cisplatin is an anticancer drug that causes the impairment of inner ear function as side effects, including hearing loss and balance dysfunction. The purpose of this study was to investigate the effects of allicin against cisplatin-induced vestibular dysfunction in mice and to make clear the mechanism underlying the protective effects of allicin on oto-vestibulotoxicity. Mice intraperitoneally injected with cisplatin exhibited vestibular dysfunction in swimming test, which agreed with impairment in vestibule...
March 1, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28219698/protective-effects-of-diallyl-disulfide-against-acetaminophen-induced-nephrotoxicity-a-possible-role-of-cyp2e1-and-nf-%C3%AE%C2%BAb
#5
Je-Won Ko, Jin-Young Shin, Jeong-Won Kim, Sung-Hyeuk Park, Na-Rae Shin, In-Chul Lee, In-Sik Shin, Changjong Moon, Sung-Ho Kim, Sung-Hwan Kim, Jong-Choon Kim
Diallyl disulfide (DADS) is a degradation product of allicin which is contained in garlic. This study investigated the protective effects of DADS against acetaminophen (AAP)-induced nephrotoxicity and the molecular mechanisms of nephroprotective effects in rats. AAP caused severe nephrotoxicity as evidenced by significant increases in renal tubular cell apoptosis, mitochondria-mediated apoptosis, and up-regulation of nuclear transcription factor kappa-B (NF-κB), cyclooxygenase-2 (Cox-2), and tumor necrosis factor-α (TNF-α) in the kidney with histopathological alterations...
April 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28185379/feed-degradability-rumen-fermentation-and-blood-metabolites-in-response-to-essential-oil-addition-to-fistulated-non-lactating-dairy-cow-diets
#6
Wisitiporn Suksombat, Atitthan Nanon, Chayapol Meeprom, Pipat Lounglawan
The effects of essential oils (EOs) on ruminal nutrient disappearance, rumen fermentation and blood metabolites in fistulated non-lactating dairy cows were studied. Four fistulated non-lactaing dairy cows were used in a 4 × 4 Latin square design; the experiment consisted of four periods of 21 days in each period, with the first 14 days for adaptation followed by 7 days of measurement period. Animals were fed 3 kg/day of 21% crude protein (CP) concentrate and ad libitum corn silage. Treatments were: (i) control; (ii) 2 mL Allicin/cow/day; (iii) 2 mL zingiberene/cow/day; and (iv) 2 mL citral/cow/day...
February 9, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28154518/drug-target-identification-and-elucidation-of-natural-inhibitors-for-bordetella-petrii-an-in-silico-study
#7
Surya Narayan Rath, Manisha Ray, Animesh Pattnaik, Sukanta Kumar Pradhan
Environmental microbes like Bordetella petrii has been established as a causative agent for various infectious diseases in human. Again, development of drug resistance in B. petrii challenged to combat against the infection. Identification of potential drug target and proposing a novel lead compound against the pathogen has a great aid and value. In this study, bioinformatics tools and technology have been applied to suggest a potential drug target by screening the proteome information of B. petrii DSM 12804 (accession No...
December 2016: Genomics & Informatics
https://www.readbyqxmd.com/read/28139552/inhibition-of-hydrogen-peroxide-induced-human-umbilical-vein-endothelial-cells-aging-by-allicin-depends-on-sirtuin1-activation
#8
Xiao-Long Lin, Yuanbo Liu, Mihua Liu, HuiJun Hu, Yongquan Pan, Xiao-Juan Fan, Xue-Mei Hu, Wei-Wen Zou
BACKGROUND The abnormal activity of Sirtuin 1 (Sirt1) is closely related to the aging of vascular endothelial cells. As a bioactive molecule, allicin has antioxidant, anti-inflammatory, and lipid-regulating mechanisms. However, few reports about the relationship of allicin and Sirt1 have been published. In this study, we aimed to elucidate the effect of allicin on Human Umbilical Vein Endothelial Cells (HUVECs) aging induced by hydrogen peroxide (H2O2) and the role of Sirt1 in this phenomenon. MATERIAL AND METHODS HUVEC were exposed to H2O2 to establish the aging model...
January 31, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28123498/allicin-inhibits-tubular-epithelial-myofibroblast-transdifferentiation-under-high-glucose-conditions-in-vitro
#9
Hong Huang, Fenping Zheng, Xuehong Dong, Fang Wu, Tianfeng Wu, Hong Li
Previous studies have suggested that tubular epithelial-mesenchymal transition (EMT) is an important event in renal tubulointerstitial fibrosis, which is a clinical characteristic of diabetic nephropathy. The present study aimed to investigate the effect of allicin, the major biological active component of garlic, on the EMT of a human renal proximal tubular epithelial cell line (HK-2) cultured under high glucose concentrations. HK-2 cells were exposed for 48 h to 5.5 or 25 mmol/l D-glucose, 25 mmol/l D-glucose plus allicin (2...
January 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28062185/allicin-protects-auditory-hair-cells-and-spiral-ganglion-neurons-from-cisplatin-induced-apoptosis
#10
Xianmin Wu, Xiaofei Li, Yongdong Song, He Li, Xiaohui Bai, Wenwen Liu, Yuechen Han, Lei Xu, Jianfeng Li, Daogong Zhang, Haibo Wang, Zhaomin Fan
Cisplatin is a broad-spectrum anticancer drug that is commonly used in the clinic. Ototoxicity is one of the major side effects of this drug, which caused irreversible sensorineural hearing loss. Allicin, the main biologically active compound derived from garlic, has been shown to exert various anti-apoptotic and anti-oxidative activities in vitro and in vivo studies. We took advantage of C57 mice intraperitoneally injected with cisplatin alone or with cisplatin and allicin combined, to investigate whether allicin plays a protective role in vivo against cisplatin ototoxicity...
January 3, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28035949/the-effects-of-allicin-a-reactive-sulfur-species-from-garlic-on-a-selection-of-mammalian-cell-lines
#11
Martin C H Gruhlke, Carole Nicco, Frederic Batteux, Alan J Slusarenko
Garlic (Allium sativum L.) has been used as a spice and medicinal plant since ancient times. Garlic produces the thiol-reactive defence substance, allicin, upon wounding. The effects of allicin on human lung epithelium carcinoma (A549), mouse fibroblast (3T3), human umbilical vein endothelial cell (HUVEC), human colon carcinoma (HT29) and human breast cancer (MCF7) cell lines were tested. To estimate toxic effects of allicin, we used a standard MTT-test (methylthiazoltetrazolium) for cell viability and ³H-thymidine incorporation for cell proliferation...
December 26, 2016: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28017989/antioxidant-effects-of-supercritical-fluid-garlic-extracts-in-canned-artichokes
#12
E Bravi, O Marconi, V Sileoni, M R Rollo, G Perretti
The effects of adding supercritical carbon dioxide extracts of garlic (at two different concentrations of allicin) on select chemical indices in extra-virgin olive oil used to canned artichokes were studied. Tests were performed after processing and over a storage period of 1 year. A sensorial test was also conducted on the canned artichokes to establish the impact on flavor (in particular perceptions of rancidity and garlic flavor). Acidity, peroxide levels and p-anisidine values were measured as quality analytical parameters...
October 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/27998111/carbon-dot-coated-alginate-beads-as-a-smart-stimuli-responsive-drug-delivery-system
#13
Sristi Majumdar, Gargee Krishnatreya, Neelam Gogoi, Debajit Thakur, Devasish Chowdhury
In this work, we report a smart stimuli-responsive drug delivery system (DDS) that can release drug depending upon the amount of pathogen (MRSA) present in the target. A greater amount of MRSA in the system will lead to more release of drug and vice versa. Carbon-dot-coated novel alginate beads (CA-CD) exhibiting superior stability was successfully used as smart drug delivery vehicle. Garlic extract (GE), which contains allicin, was taken as model drug system to demonstrate the phenomena. It was observed that GE loading was 19 and 78% with CA and CA-CD, respectively...
December 21, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27995158/data-on-the-effect-of-boiling-on-the-organosulfides-and-the-hydrogen-sulfide-releasing-activity-of-garlic
#14
Restituto Tocmo, Yuchen Wu, Dong Liang, Vincenzo Fogliano, Dejian Huang
This article contains experimental data on the identification and quantification of the organosulfides on boiled garlic extracts. Data included are related to the research article "Boiling enriches the linear polysulfides and the hydrogen sulfide-releasing activity of garlic" (R. Tocmo, Y. Wu, D. Liang, V. Fogliano, D. Huang, 2016) [1]. Characterization was carried out by GC-MS and HPLC. Dose-response curves obtained from the cell-based H2S-releasing capacity assay of allicin transformation products, namely vinyl dithiins and ajoene are also included...
February 2017: Data in Brief
https://www.readbyqxmd.com/read/27990229/effects-of-allicin-on-hypertension-and-cardiac-function-in-chronic-kidney-disease
#15
Ehécatl M A García-Trejo, Abraham S Arellano-Buendía, Raúl Argüello-García, María L Loredo-Mendoza, Fernando E García-Arroyo, Mónica G Arellano-Mendoza, María C Castillo-Hernández, Gustavo Guevara-Balcázar, Edilia Tapia, Laura G Sánchez-Lozada, Horacio Osorio-Alonso
This work was performed to study the effect of allicin on hypertension and cardiac function in a rat model of CKD. The groups were control, CKD (5/6 nephrectomy), and CKD-allicin treated (CKDA) (40 mg/kg day/p.o.). Blood pressure was monitored (weekly/6 weeks). The cardiac function, vascular response to angiotensin II, oxidative stress, and heart morphometric parameters were determined. The CKD group showed hypertension and proteinuria. The coronary perfusion and left ventricular pressures were decreased in CKD group...
2016: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/27892697/allium-roseum-l-extract-exerts-potent-suppressive-activities-on-chronic-myeloid-leukemia-k562-cell-viability-through-the-inhibition-of-bcr-abl-pi3k-akt-and-erk1-2-pathways-and-the-abrogation-of-vegf-secretion
#16
Soumaya Souid, Hanen Najjaa, Ichrak Riahi-Chebbi, Meriam Haoues, Mohamed Neffati, Ingrid Arnault, Jacques Auger, Habib Karoui, Makram Essafi, Khadija Essafi-Benkhadir
Use of plant extracts, alone or combined to the current chemotherapy as chemosensitizers, has emerged as a promising strategy to overcome tumor drug resistance. Here, we investigated the anticancer activity of Allium roseum L. extracts, a wild edible species in North Africa, on human Chronic Myeloid Leukemia (CML) K562 cells. The dehydrated aqueous extract (DAE) disturbed the cell cycle progression and induced the apoptosis of K562 cells. Chemical analysis of DAE showed a diversity of organosulfur compounds S-alk(en)yl-cysteine sulfoxides (RCSO) and high amount of allicin, suggesting that such molecule may be behind its antitumor effect...
January 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/27868250/effects-of-astragalus-membranaceus-codonopsis-pilosula-and-allicin-mixture-on-growth-performance-nutrient-digestibility-faecal-microbial-shedding-immune-response-and-meat-quality-in-finishing-pigs
#17
R X Lan, J W Park, D W Lee, I H Kim
A 12-week trial with 120 [(Landrace×Yorkshire)×Duroc] pigs (45.65 ± 1.93 kg) was conducted to evaluate the effects of Astragalus membranaceus, Codonopsis pilosula and allicin mixture (HM) supplementation on growth performance, nutrient digestibility, faecal microbial shedding, immune response and meat quality in finishing pigs. Pigs were allocated to one of three treatments with 0, 0.025% (HM1) and 0.05% (HM2) HM supplementation in a randomized complete block design according to sex and BW. Each treatment contained 10 replications with four pigs (two barrows and two gilts) per pen...
November 21, 2016: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/27855892/cooked-garlic-and-antioxidant-activity-correlation-with-organosulfur-compound-composition
#18
D A Locatelli, M A Nazareno, C M Fusari, A B Camargo
The antioxidant properties and the main beneficial organosulphur compounds of home-cooked garlic samples were studied in order to establish relationships between them. Antioxidant activity was tested by free radical scavenging against 2,2-diphenyl-1-picrylhydrazyl radical (DPPH) and 2,2'-azino-bis-(3-ethylbenzo-thiazoline-6-sulfonic acid) diammonium salt (ABTS(+)), Fe(III) reducing ability (FRAP) and linoleic acid co-oxidation initiated by soybean lipoxygenase in a micelle system. DPPH, ABTS and FRAP assays showed the highest activity for raw garlic samples, while β-carotene bleaching assay yielded the highest activity for stir-fried garlic...
April 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27765964/properties-and-storage-stability-of-whey-protein-edible-film-with-spice-powders
#19
Apisada Ket-On, Natkritta Pongmongkol, Anongnat Somwangthanaroj, Theeranun Janjarasskul, Kanitha Tananuwong
The impact of spice powders on physical, mechanical, thermal and barrier properties, and on storage stability, of whey protein isolate (WPI)-based films was determined. Films with added spices were prepared from casting solution containing 10 % (w/w) heat-denatured WPI, glycerol (WPI:glycerol of 3:2 w/w), sodium chloride (0.4 g/100 g solution), garlic and pepper powders (≤3 g each/100 g solution). Water activity (aw) of all films was 0.53-0.57. Addition of spice powders increased thickness, darkness and yellowness of the WPI films...
July 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/27756563/allicin-inspired-thiolated-fluoroquinolones-as-antibacterials-against-eskape-pathogens
#20
Jordan G Sheppard, Timothy E Long
Thiolated fluoroquinolones were synthesized from ciprofloxacin and evaluated for antimicrobial activity against a panel of pathogenic bacteria. Gram-positive species including methicillin-resistant Staphylococcus aureus (MRSA) exhibited the highest level of increased sensitivity toward ciprofloxacin bound with a N-propylthio substituent. Evidence was found that the antibiotics form disulfides with low molecular weight thiols in bacteria and potentiate generation of cytosolic reactive oxygen species (ROS). In final analysis, the enhanced anti-MRSA activity of thiolated fluoroquinolones was attributed to increased cell permeability and reaction with cytosolic thiols that yields an inactive disulfide metabolite and the parent drug ciprofloxacin as an inhibitor of DNA synthesis...
November 15, 2016: Bioorganic & Medicinal Chemistry Letters
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