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Allicin

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https://www.readbyqxmd.com/read/29126733/allicin-inspired-pyridyl-disulfides-as-antimicrobial-agents-for-multidrug-resistant-staphylococcus-aureus
#1
Jordan G Sheppard, Jeremy P McAleer, Pushkar Saralkar, Werner J Geldenhuys, Timothy E Long
A chemical library comprised of nineteen synthesized pyridyl disulfides that emulate the chemical reactivity of allicin (garlic) was evaluated for antimicrobial activity against a panel of pathogenic bacteria. Gram-positive species including vancomycin-intermediate and vancomycin-resistant Staphylococcus aureus (VISA, VRSA) demonstrated the highest level of susceptibility toward analogs with S-alkyl chains of 7-9 carbons in length. Further biological studies revealed that the disulfides display synergy with vancomycin against VRSA, cause dispersal of S...
October 12, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29111753/biogenic-nanostructured-porous-silicon-as-a-carrier-for-stabilization-and-delivery-of-natural-therapeutic-species
#2
Nguyen T Le, Jhansi R Kalluri, Armando Loni, Leigh T Canham, Jeffery L Coffer
Nanostructured mesoporous silicon (pSi) derived from the silicon-accumulator plant Tabasheer (Bambuseae) is demonstrated to serve as a potential carrier matrix for carrying and stabilizing naturally active, but otherwise metastable, therapeutic agents. Particularly, in this study, garlic oil containing phytochemicals (namely, allicin) that are capable of inhibiting Staphylococcus aureus (S. aureus) bacterial growth were incorporated into Tabasheer-derived porous silicon. Thermogravimetric analysis (TGA) indicated that relatively high amounts of the extract (53...
November 13, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29077629/mechanism-of-action-of-topical-garlic-on-wound-healing
#3
Minhal Alhashim, Jamie Lombardo
BACKGROUND: Allicin, the active component of garlic, has been shown to have antimicrobial and anti-inflammatory properties. Garlic has also been used historically by many cultures to heal wounds. Several animal studies have shown that garlic extracts increase the rate of wound healing and decrease the rate of infection. OBJECTIVE: Fibroblasts play a key role in wound healing. Here we hypothesize that fibroblasts are being activated by allicin, leading to more organized and rapid wound repair...
October 26, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/29056888/effect-of-garlic-supplement-in-the-management-of-type-2-diabetes-mellitus-t2dm-a-meta-analysis-of-randomized-controlled-trials
#4
Juan Wang, Xiuming Zhang, Haili Lan, Weijia Wang
The present study was designed to systematically evaluate the clinical efficacy and safety of garlic supplement in the management of type 2 diabetes mellitus (T2DM). PubMed, EMBASE, the Cochrane Library, and China National Knowledge Internet (CNKI) were searched for relevant randomized controlled trials (RCTs) by using the terms garlic and T2DM up to April 2017. The quality of included RCTs was assessed by the Cochrane tool of risk of bias, and data of outcomes were pooled by REVMAN 5.3. Clinical factors were handled by meta-regression and subgroup analysis, and risk of publication bias was explored by inverted funnel plots...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/29038534/performance-and-consistency-of-a-fluorescence-based-high-throughput-screening-assay-for-use-in-babesia-drug-screening-in-mice
#5
Mohamed Abdo Rizk, Shimaa Abd El-Salam El-Sayed, Mahmoud AbouLaila, Rasha Eltaysh, Naoaki Yokoyama, Ikuo Igarashi
In this study, we evaluated the validity of a fluorescence-based assay using SYBR Green I (SG I) stain for screening antibabesial compounds against B. microti in mice. Two different hematocrits (HCTs; 2.5% and 5%) were used. Correlating relative fluorescence units (RFUs) with parasitemia showed significant linear relationships with R(2) values of 0.97 and 0.99 at HCTs of 2.5% and 5%, respectively. Meanwhile, the Z' factors in a high-throughput screening (HTS) assay were within the permissible limit (≥0.5) at 2...
October 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29023413/diallylthiosulfinate-allicin-a-volatile-antimicrobial-from-garlic-allium-sativum-kills-human-lung-pathogenic-bacteria-including-mdr-strains-as-a-vapor
#6
Jana Reiter, Natalja Levina, Mark van der Linden, Martin Gruhlke, Christian Martin, Alan J Slusarenko
Garlic (Allium sativum) has potent antimicrobial activity due to allicin (diallylthiosulfinate) synthesized by enzyme catalysis in damaged garlic tissues. Allicin gives crushed garlic its characteristic odor and its volatility makes it potentially useful for combating lung infections. Allicin was synthesized (>98% pure) by oxidation of diallyl disulfide by H₂O₂ using formic acid as a catalyst and the growth inhibitory effect of allicin vapor and allicin in solution to clinical isolates of lung pathogenic bacteria from the genera Pseudomonas, Streptococcus, and Staphylococcus, including multi-drug resistant (MDR) strains, was demonstrated...
October 12, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28962124/allicin-protects-against-h2o2-induced-apoptosis-of-pc12-cells-via-the-mitochondrial-pathway
#7
Runxiao Lv, Lili Du, Chunwen Lu, Jinhui Wu, Muchen Ding, Chao Wang, Ningfang Mao, Zhicai Shi
Allicin is a major bioactive ingredient of garlic and has a broad range of biological activities. Allicin has been reported to protect against cell apoptosis induced by H2O2 in human umbilical vein endothelial cells. The present study evaluated the neuroprotective effect of allicin on the H2O2-induced apoptosis of rat pheochromocytoma PC12 cells in vitro and explored the underlying mechanism involved. PC12 cells were incubated with increasing concentrations of allicin and the toxic effect of allicin was measured by MTT assay...
September 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28926934/the-beneficial-effects-of-allicin-in-chronic-kidney-disease-are-comparable-to-losartan
#8
Ehécatl Miguel Ángel García Trejo, Abraham Said Arellano Buendía, Omegar Sánchez Reyes, Fernando Enrique García Arroyo, Raúl Arguello García, María Lilia Loredo Mendoza, Edilia Tapia, Laura Gabriela Sánchez Lozada, Horacio Osorio Alonso
Recent studies suggest that allicin may play a role in chronic kidney disease (CKD), reducing hypertension and oxidative stress and improving renal dysfunction. In the present study, CKD was induced by 5/6 nephrectomy and the animals were divided into four treatment groups as follows: control (C), CKD, CKD+allicin (40 mg/kg pathway oral) (CKDA), and CKD+Losartan (20 mg/kg) (CKDL). After CKD induction, the rats developed hypertension from week 3 to the end of the study. This was associated with increased creatinine and blood urea nitrogen (BUN) levels in serum, increased albuminuria, increased urinary excretion of N-acetyl-β-d-glucosaminidase (NAG), increased nephrin expression, and incrased histological alterations in the cortex...
September 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28911544/black-garlic-a-critical-review-of-its-production-bioactivity-and-application
#9
REVIEW
Shunsuke Kimura, Yen-Chen Tung, Min-Hsiung Pan, Nan-Wei Su, Ying-Jang Lai, Kuan-Chen Cheng
Black garlic is obtained from fresh garlic (Allium sativum L.) that has been fermented for a period of time at a controlled high temperature (60-90°C) under controlled high humidity (80-90%). When compared with fresh garlic, black garlic does not release a strong offensive flavor owing to the reduced content of allicin. Enhanced bioactivity of black garlic compared with that of fresh garlic is attributed to its changes in physicochemical properties. Studies concerning the fundamental findings of black garlic, such as its production, bioactivity, and applications, have thus been conducted...
January 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28872080/-role-of-autophagy-in-ameliorating-sepsis-induced-acute-lung-injury-by-allicinin-in-mice
#10
Yue Peng, Yu Jiang, Hao Ou, Wei Xing, Mingshi Yang, Min Gao
To investigate roles of autophagy in ameliorating sepsis-induced acute lung injury by allicinin in mice.
 Methods: A total of 152 male Balb/c mice (8-week old) were randomly divided into a sham group, a septic model group, an allicin treatment group, and an autophagy inhibition group. Septic mouse model was established by cecal ligation and puncture (CLP). Mice in the allicin treatment group were given allicin (30 mg/kg, intra-peritoneal injection) at 6 and 12 h, while those in the autophagy inhibition group were given autophagy inhibitor 3-MA (15 mg/kg, intra-peritoneal injection) at half an hour after allicin administration...
August 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28868122/allicin-attenuates-tunicamycin-induced-cognitive-deficits-in-rats-via-its-synaptic-plasticity-regulatory-activity
#11
Qiong Xiang, Xian-Hui Li, Bo Yang, Xin-Xing Fang, Jing Jia, Jie Ren, Yu-Chun Dong, Cheng Ou-Yang, Guang-Cheng Wang
OBJECTIVES: To illuminate the functional effects of allicin on rats with cognitive deficits induced by tunicamycin (TM) and the molecular mechanism of this process. MATERIALS AND METHODS: 200-250 g male SD rats were divided into three groups at random: control group (n=12), TM group (5 μl, 50 μM, ICV, n=12), and allicin treatment group (180 mg/kg/d with chow diet, n=12). After 16 weeks of allicin treatment, the learning ability and memory were tested using novel object recognition (NOR) testing on rats with 72 hr TM treatment (5 μl, 50 μM, ICV); meanwhile, the variation of field excitatory postsynaptic potential (fEPSP) in the Schaffer Collateral (SC)-CA1 synapse was detected by extracellular electrophysiological recordings and the morphology of dendritic spine was observed by Golgi staining as well as detecting several synaptic plasticity-related proteins by Western blot...
June 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28858299/synthesis-and-in-vitro-biological-evaluation-of-thiosulfinate-derivatives-for-the-treatment-of-human-multidrug-resistant-breast-cancer
#12
Ariane Roseblade, Alison Ung, Mary Bebawy
Organosulfur compounds derived from Allium vegetables have long been recognized for various therapeutic effects, including anticancer activity. Allicin, one of the main biologically active components of garlic, shows promise as an anticancer agent; however, instability makes it unsuitable for clinical application. The aim of this study was to investigate the effect of stabilized allicin derivatives on human breast cancer cells in vitro. In this study, a total of 22 stabilized thiosulfinate derivatives were synthesized and screened for their in vitro antiproliferative activities against drug-sensitive (MCF-7) and multidrug-resistant (MCF-7/Dx) human adenocarcinoma breast cancer cells...
October 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28828709/a-comprehensive-review-on-pharmacotherapeutics-of-three-phytochemicals-curcumin-quercetin-and-allicin-in-the-treatment-of-gastric-cancer
#13
REVIEW
Atousa Haghi, Haniye Azimi, Roja Rahimi
OBJECTIVE: Gastric cancer is one of the most common causes of cancer-related death worldwide. Medicinal plants are one of the main sources for discovery of new pharmacological agents especially for treatment of cancers. The aim of the present study is to review pharmacotherapeutic aspects of three mostly studied phytochemicals including curcumin, quercetin, and allicin for management of gastric cancer. METHODS: Scopus, PubMed, Web of Science, and Google Scholar were searched for the effects of curcumin, quercetin, allicin, and their analogs in gastric cancer...
December 2017: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/28810641/allicin-improves-carotid-artery-intima-media-thickness-in-coronary-artery-disease-patients-with-hyperhomocysteinemia
#14
De-Shan Liu, Shu-Li Wang, Jun-Mei Li, Er-Shun Liang, Ming-Zhong Yan, Wei Gao
Homocysteine (Hcy) is an important and independent risk factor for atherosclerotic diseases, such as coronary artery disease and ischemic cerebrovascular disease. Increased carotid artery intima-media thickness (IMT) is a non-invasive marker of systemic atherosclerosis. Allicin treatment may decrease serum Hcy levels and improve impaired endothelial function in rats with hyperhomocysteinemia (HHcy). The present study hypothesized that allicin has an anti-atherosclerotic effect in coronary heart disease and tested the effects of allicin treatment on carotid artery IMT and plasma Hcy levels in coronary heart disease patients with HHcy...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28712378/treatment-of-allicin-improves-maturation-of-immature-oocytes-and-subsequent-developmental-ability-of-preimplantation-embryos
#15
Sang-Gi Jeong, Seung-Eun Lee, Yun-Gwi Park, Yeo-Jin Son, Min-Young Shin, Eun-Young Kim, Se-Pill Park
Allicin (AL) regulates the cellular redox, proliferation, viability, and cell cycle of different cells against extracellular-derived stress. This study investigated the effects of allicin treatment on porcine oocyte maturation and developmental competence. Porcine oocytes were cultured in medium supplemented with 0 (control), 0.01, 0.1, 1, 10 or 100 μM AL, respectively, during in vitro maturation (IVM). The rate of polar body emission was higher in the 0.1 AL-treated group (74.5% ± 2.3%) than in the control (68...
August 2017: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/28703780/in-vitro-and-in-vivo-control-of-secondary-bacterial-infection-caused-by-leishmania-major
#16
Hany M Yehia, Ebtesam M Al-Olayan, Manal F El-Khadragy, Dina M Metwally
Bacterial infections of cutaneous leishmaniasis cause skin ulcers on mice, resulting in increased tissue deterioration, and these infections can be controlled with liquid allicin. To isolate and identify the incidences of real secondary bacterial infections in mice, we performed the current study by injecting mice (n = 50) with Leishmania major. L. major infections were initiated by an intramuscular injection of 0.1 mL Roswell Park Memorial Institute (RPMI 1640 media/mouse (10(7) promastigote/mL)). Scarring appeared 2-6 weeks after injection, and the bacteria were isolated from the skin ulcer tissues...
July 13, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28693193/allicin-inhibits-the-invasion-of-lung-adenocarcinoma-cells-by-altering-tissue-inhibitor-of-metalloproteinase-matrix-metalloproteinase-balance-via-reducing-the-activity-of-phosphoinositide-3-kinase-akt-signaling
#17
Ling Huang, Yuanhong Song, Jianping Lian, Zhiwei Wang
Allicin, the main active principle associated with Allium sativum chemistry, has various antitumor activities. However, to the best of our knowledge, there is no available information to address the anti-invasive effect and associated mechanism in lung adenocarcinoma. In the present study, cell viability assay, cell adhesion assay, western blot analysis, Transwell migration and invasion assays and reverse transcription-quantitative polymerase chain reaction were performed. Allicin was identified to inhibit the adhesion, invasion and migration of lung adenocarcinoma cells in a dose-dependent manner, accompanied by decreasing mRNA and protein levels of matrix metalloproteinase (MMP)-2 and MMP-9...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28607407/resistance-of-garlic-cultivars-to-bradysia-odoriphaga-and-its-correlation-with-garlic-thiosulfinates
#18
Guodong Zhu, Yin Luo, Ming Xue, Fangyuan Zhou, Haipeng Zhao, Guixia Ji, Fang Liu
Garlic, a widely cultivated global vegetable crop, is threatened by the underground pest Bradysia odoriphaga in China. Previous reports indicated that garlic essential oil, of which the dominant components are sulfides or thiosulfinates, exhibits insecticidal activity against pests. However, it is unclear whether the resistance of garlic to B. odoriphaga is related to thiosulfinates. Here, we compared the resistance of 10 garlic cultivars at various growth stages to B. odoriphaga by field investigation and indoor life-table data collection...
June 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28572959/bioactive-phytochemicals-in-an-aqueous-extract-of-the-leaves-of-talinum-triangulare
#19
Catherine C Ikewuchi, Jude C Ikewuchi, Mercy O Ifeanacho
An aqueous leaf extract of Talinum triangulare was screened for the presence of bioactive molecules, using gas chromatography coupled with pulse and flame ionization detectors. It had high carotenoids; moderate benzoic acid derivatives, hydroxycinnamates and flavonoids; and low terpenes, alkaloids, phytosterols, allicins, glycosides, saponins, and lignans contents. Ten known carotenoids (mainly 50.42% carotene and 33.30% lycopene), nine benzoic acid derivatives (mainly 84.63% ferulic acid and 11.92% vanillic acid), and six hydroxycinnamates (55...
May 2017: Food Science & Nutrition
https://www.readbyqxmd.com/read/28511293/enterobacter-aerogenes-zdy01-attenuates-choline-induced-trimethylamine-n-oxide-levels-by-remodeling-gut-microbiota-in-mice
#20
Liang Qiu, Dong Yang, Xueying Tao, Jun Yu, Hua Xiong, Hua Wei
Trimethylamine N-oxide (TMAO), which is transformed from trimethylamine (TMA) through hepatic flavin-containing monooxygenases, can promote atherosclerosis. TMA is produced from dietary carnitine, phosphatidylcholine, and choline via the gut microbes. Previous works have shown that some small molecules, such as allicin, resveratrol, and 3,3-dimethyl-1-butanol, are used to reduce circulating TMAO levels. However, the use of bacteria as an effective therapy to reduce TMAO levels has not been reported. In the present study, 82 isolates were screened from healthy Chinese fecal samples on a basal salt medium supplemented with TMA as the sole carbon source...
August 28, 2017: Journal of Microbiology and Biotechnology
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