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https://www.readbyqxmd.com/read/28815601/antimicrobial-synergism-and-cytotoxic-properties-of-citrus-limon-l-piper-nigrum-l-and-melaleuca-alternifolia-maiden-and-betche-cheel-essential-oils
#1
Miloš M Nikolić, Katarina K Jovanović, Tatjana Lj Marković, Dejan Lj Marković, Nevenka N Gligorijević, Siniša S Radulović, Marina Kostić, Jasmina M Glamočlija, Marina D Soković
OBJECTIVES: The chemical composition, antimicrobial and synergistic effect, and cytotoxic activity of Citrus limon (lemon), Piper nigrum (green pepper) and Melaleuca alternifoila (tea tree) essential oils (EOs) were investigated. METHODS: Chemical analyses of essential oils were tested by GC-FID and GC-MS spectroscopy. The antimicrobial activity assay was conducted using microdilution method against several oral bacteria and Candida spp. originating from the humans with oral disorders...
August 17, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28762712/common-herbal-dietary-supplement-drug-interactions
#2
REVIEW
Gary N Asher, Amanda H Corbett, Roy L Hawke
Nearly 25% of U.S. adults report concurrently taking a prescription medication with a dietary supplement. Some supplements, such as St. John's wort and goldenseal, are known to cause clinically important drug interactions and should be avoided by most patients receiving any pharmacologic therapy. However, many other supplements are predicted to cause interactions based only on in vitro studies that have not been confirmed or have been refuted in human clinical trials. Some supplements may cause interactions with a few medications but are likely to be safe with other medications (e...
July 15, 2017: American Family Physician
https://www.readbyqxmd.com/read/28755734/epigallocatechin-3-gallate-the-prospective-targeting-of-cancer-stem-cells-and-preventing-metastasis-of-chemically-induced-mammary-cancer-in-rats
#3
Sahar S Abd El-Rahman, Gehan Shehab, Heba Nashaat
BACKGROUND: Cancer stem cells are a subpopulation of tumor cells that are capable of self-renewal, capable of tumor recurrence and metastasis, and in addition are resistant to current cancer therapies. Epigallocatechin-3-gallate is a type of catechin found in green tea that is known for its powerful chemoprotective ability. Hence, this study aimed to investigate the effect of epigallocatechin-3-gallate on 7, 12 dimethylbenzanthracene-induced tumor metastasis, angiogenesis and cancer stem cells...
July 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28693189/epigallocatechin-gallate-inhibits-the-growth-of-mda-mb-231-breast-cancer-cells-via-inactivation-of-the-%C3%AE-catenin-signaling-pathway
#4
On-Yu Hong, Eun-Mi Noh, Hye-Yeon Jang, Young-Rae Lee, Byoung Kil Lee, Sung Hoo Jung, Jong-Suk Kim, Hyun Jo Youn
Epigallocatechin gallate (EGCG), a major constituent of green tea, has potential as a treatment for a variety of diseases, including cancer. EGCG induces apoptosis and inhibits tumorigenesis through multiple signaling pathways in breast cancer cells. β-catenin signaling modulators could be useful in the prevention and therapy of breast cancer. However, the precise anticancer effect of EGCG through the β-catenin signaling pathway in breast cancer is unclear. The present study investigated the association between β-catenin expression and clinicopathological factors of breast cancer patients, and the effect of EGCG on β-catenin expression in breast cancer cells...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28657651/diet-and-cancer-prevention-dietary-compounds-dietary-micrornas-and-dietary-exosomes
#5
Zarrin Banikazemi, Hemat Aghagolzadeh Haji, Mohsen Mohammadi, Gholamreza Taheripak, Elmira Iranifar, Mohsen Poursadeghiyan, Abdullah Moridikia, Bahman Rashidi, Mohsen Taghizadeh, Hamed Mirzaei
Cancer is one of main health public problems worldwide. Several factors are involved in beginning and development of cancer. Genetic and internal/external environmental factors can be as important agents that effect on emerging and development of several cancers. Diet and nutrition may be as one of important factors in prevention or treatment of various cancers. A large number studies indicated that suitable dietary patterns may help to cancer prevention or could inhibit development of tumor in cancer patients...
June 28, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28611670/identification-of-epigallocatechin-3-gallate-as-an-inhibitor-of-phosphoglycerate-mutase-1
#6
Xiaoguang Li, Shuai Tang, Qian-Qian Wang, Elaine L-H Leung, Hongyue Jin, Yongzhuo Huang, Jia Liu, Meiyu Geng, Min Huang, Shengtao Yuan, Xiao-Jun Yao, Jian Ding
Targeting metabolic enzymes is believed to provide new therapeutic opportunities for cancer therapy. Phosphoglycerate mutase 1 (PGAM1) is a glycolytic enzyme that importantly coordinates glycolysis, pentose phosphate pathway (PPP) flux and serine biosynthesis in cancer cells and hence gains increasing interest of inhibitor discovery. Only few PGAM1 inhibitors have been reported and the molecular potency remains very limited. In an effort to discover new PGAM1 inhibitors, we carried out a biochemical assay-based screen that was focused on natural products derived small molecule compounds...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28592119/tea-polyphenol-inhibits-autophagy-to-sensitize-epirubicin-induced-apoptosis-in-human-bladder-cancer-cells
#7
W Gu, Y Lin, X Gou, W He
Resistance to anticancer agents such as Epirubicin (EPI) becomes a great challenge for treating bladder cancer. However, the mechanism by which chemoresistance arised is still elusive. In the present study, we showed evidence that EPI induced cytoprotective autophagy in bladder cancer cell lines T24 and BIU87. In addition, EPI robustly activated JNK-mediated phosphorylation of Bcl-2 and disruption of Bcl-2/Beclin-1 complex. Furthermore, the green tea derivative tea polyphenol (TP) inhibited EPI-induced autophagy and promoted apoptosis induced by EPI in bladder cancer cells...
June 8, 2017: Neoplasma
https://www.readbyqxmd.com/read/28587181/chronic-inflammatory-diseases-and-green-tea-polyphenols
#8
REVIEW
Helieh S Oz
Chronic inflammatory diseases affect millions of people globally and the incidence rate is on the rise. While inflammation contributes to the tissue healing process, chronic inflammation can lead to life-long debilitation and loss of tissue function and organ failure. Chronic inflammatory diseases include hepatic, gastrointestinal and neurodegenerative complications which can lead to malignancy. Despite the millennial advancements in diagnostic and therapeutic modalities, there remains no effective cure for patients who suffer from inflammatory diseases...
June 1, 2017: Nutrients
https://www.readbyqxmd.com/read/28534346/the-use-of-inexpensive-broad-spectrum-lower-toxicity-therapeutics-in-chronic-lymphocytic-leukemia
#9
Goran Marjanovic
The use of new and highly efficient targeted therapies for chronic lymphocytic leukemia (CLL) is costly and out of reach for many health care systems. On the other hand, in recent years, few inexpensive, broad-spectrum low-toxicity therapeutics have proven to be effective both in the preclinical and clinical settings. In early-stage CLL, the use of 2000 mg of epigallocatechin-3-gallate (EGCG) from the green tea extract twice a day was able to reduce the absolute leukocyte count. Supplementation of >2000 IU/day of Vitamin D in early low-risk CLL patients is able to delay disease progression and postpone the moment of initiation of the first treatment...
March 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28515762/biochemical-and-histopathological-effects-of-green-tea-nanoparticles-in-ironized-mouse-model
#10
Hidayat Sulistyo, Dhadhang Wahyu Kurniawan, Lantip Rujito
Transfusion in the treatment of thalassemia gives rise to iron deposits in many organs. Since there are many obstacles in the use of deferoxamin (DFO) as an iron chelating agent, it is important to find another alternative therapy that can act as iron chelation. The study aims to compare the histopathological pictures of the heart and spleen in iron-induced rats after administration of DFO and nanoparticles of green tea extract. The research used experimental research design with a post-test only control group...
April 2017: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28507011/influence-of-diet-in-multiple-sclerosis-a-systematic-review
#11
REVIEW
M José Bagur, M Antonia Murcia, Antonia M Jiménez-Monreal, Josep A Tur, M Mar Bibiloni, Gonzalo L Alonso, Magdalena Martínez-Tomé
Nutrition is considered to be a possible factor in the pathogenesis of the neurological disease multiple sclerosis (MS). Nutrition intervention studies suggest that diet may be considered as a complementary treatment to control the progression of the disease; a systematic review of the literature on the influence of diet on MS was therefore conducted. The literature search was conducted by using Medlars Online International Literature (MEDLINE) via PubMed and Scopus. Forty-seven articles met the inclusion criteria...
May 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28492194/comparison-of-the-streptococcus-mutans-and-lactobacillus-colony-count-changes-in-saliva-following-chlorhexidine-0-12-mouth-rinse-combination-mouth-rinse-and-green-tea-extract-0-5-mouth-rinse-in-children
#12
Rahul J Hegde, Shamika Kamath
BACKGROUND: Compounds present in green tea have been shown to inhibit the growth and activity of bacteria associated with oral infections. The purpose of this study was to compare the efficacy of chlorhexidine (0.12%) mouth rinse and combination (chlorhexidine and sodium fluoride) mouth rinse to that of green tea extract (0.5%) mouth rinse in reducing the salivary count of Streptococcus mutans and Lactobacillus in children. MATERIALS AND METHODS: The sample for the study consisted of 75 school children aged 8-12 years with four or more (decay component) of decayed, missing, and filled teeth index...
April 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28468264/improvement-of-antioxidant-defences-and-mood-status-by-oral-gaba-tea-administration-in-a-mouse-model-of-post-stroke-depression
#13
Maria Daglia, Arianna Di Lorenzo, Seyed Fazel Nabavi, Antoni Sureda, Sedigheh Khanjani, Akbar Hajizadeh Moghaddam, Nady Braidy, Seyed Mohammad Nabavi
Green GABA (GGABA) and Oolong GABA (OGABA) teas are relatively new varieties of tea, whose chemical composition and functional properties are largely under-studied, despite their promising health capacities. Post stroke depression (PSD) is a complication of stroke with high clinical relevance, yielding increasing mortality and morbidity rates, and a lower response to common therapies and rehabilitation. METHODS: Two chemically characterized commercial samples of GGABA and OGABA were investigated for effects on mood following oral administration using a mouse model of PSD, through common validated tests including the Despair Swimming Test and Tail Suspension Test...
April 29, 2017: Nutrients
https://www.readbyqxmd.com/read/28352352/combination-therapy-with-catechins-and-caffeine-inhibits-fat-accumulation-in-3t3-l1-cells
#14
Xiaojuan Zhu, Licong Yang, Feng Xu, Lezhen Lin, Guodong Zheng
Catechins and caffeine, which are green tea components, have a slimming effect; however, the combinational effect of fat metabolism in 3T3-L1 cells remains unclear. In the present study, 3T3-L1 cells were treated with catechins and caffeine in combination, and it was found that combination therapy with catechins and caffeine markedly reduced intracellular fat accumulation, mRNA expression levels of peroxisome proliferator-activated receptor-γ and CCAAT/enhancer-binding protein α in the early stage of cell differentiation were significantly reduced, and mRNA expression of fatty acid synthetase(FAS) andglycerol-3-phosphate dehydrogenase protein expression levels of FAS were downregulated...
February 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28289384/theabrownin-inhibits-cell-cycle-progression-and-tumor-growth-of-lung-carcinoma-through-c-myc-related-mechanism
#15
Li Zhou, Feifei Wu, Wangdong Jin, Bo Yan, Xin Chen, Yingfei He, Weiji Yang, Wenlin Du, Qiang Zhang, Yonghua Guo, Qiang Yuan, Xiaoqiao Dong, Wenhua Yu, Jin Zhang, Luwei Xiao, Peijian Tong, Letian Shan, Thomas Efferth
Green tea, the fresh leaves of Camellia sinensis, is not only a health-promoting beverage but also a traditional Chinese medicine used for prevention or treatment of cancer, such as lung cancer. Theabrownin (TB) is the main fraction responsible for the medicinal effects of green tea, but whether it possesses anti-cancer effect is unknown yet. This study aimed to determine the in vitro and in vivo anti-lung cancer effect of TB and explore the underlying molecular mechanism, by using A549 cell line and Lewis lung carcinoma-bearing mice...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28260629/uplc-esi-ms-ms-study-of-the-effect-of-green-tea-extract-on-the-oral-bioavailability-of-erlotinib-and-lapatinib-in-rats-potential-risk-of-pharmacokinetic-interaction
#16
Hadir M Maher, Nourah Z Alzoman, Shereen M Shehata, Ashwag O Abahussain
Green tea (GT) is one of the most consumed beverages worldwide. Tyrosine kinase inhibitors (TKIs) belong to the oral targeted therapy that gained much interest in oncology practice, among which are erlotinib (ERL) and lapatinib (LAP). Since green tea polyphenols (GTP) are known to be inhibitors of receptor tyrosine kinases, GTE could likely potentiate the anticancer effect of TKIs, but with a possibility of pharmacokinetic (PK) interaction with co-administered TKIs. In this study, the effect of GTE on the PK of ERL/LAP in rats was studied...
April 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28258675/cancer-chemoprevention-selected-molecular-mechanisms
#17
REVIEW
Katarzyna Walczak, Sebastian Marciniak, Grażyna Rajtar
The effect of diet on cancer formation and prevention of carcinogenesis has attracted considerable attention for years and is the subject of several studies. Some components of the daily diet, such as resveratrol, curcumin, genistein, gingerol, can significantly reduce the risk of cancer or affect the rate of tumor progression. Cancer chemoprevention assumes the use of natural or synthetic biologically active substances in order to prevent, inhibit or reverse the progression of cancer. There are many biologically active compounds in several natural products, i...
March 2, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28245081/limited-effectiveness-of-over-the-counter-plant-preparations-used-for-the-treatment-of-urinary-tract-infections-as-inhibitors-of-the-urease-activity-from-staphylococcus-saprophyticus
#18
C E Deutch
AIMS: Urease is a key virulence factor for the Gram-positive urinary tract pathogen Staphylococcus saprophyticus and a potential target for antimicrobial therapy. The enzyme from S. saprophyticus is unusual in that it does not contain cysteine at the active site. The aims of this study were to test 14 over-the-counter plant preparations as inhibitors of this urease and to determine whether they can prevent the increase in pH that normally occurs in bacterial cultures containing urea. METHODS AND RESULTS: Urease activity was measured colorimetrically by the formation of ammonium ions...
May 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28181675/a-placebo-controlled-double-blinded-randomized-pilot-study-of-combination-phytotherapy-in-biochemically-recurrent-prostate-cancer
#19
RANDOMIZED CONTROLLED TRIAL
M Diana van Die, Scott G Williams, Jon Emery, Kerry M Bone, Jeremy M G Taylor, Elizabeth Lusk, Marie V Pirotta
BACKGROUND: Men with biochemical recurrence of prostate cancer following local therapies often use natural supplements in an attempt to delay metastases and/or avoid the need for more aggressive treatments with undesirable side-effects. While there is a growing body of research into phytotherapeutic agents in this cohort, with some promising results, as yet no definitive recommendations can be made. This pilot study was undertaken to assess the feasibility of a fully-powered study to examine the effects of this phytotherapeutic intervention (containing turmeric, resveratrol, green tea and broccoli sprouts) on PSA doubling time in men with biochemical recurrence with a moderate PSA rise rate...
May 2017: Prostate
https://www.readbyqxmd.com/read/28160861/antibacterial-activity-of-epigallocatechin-3-gallate-egcg-and-its-synergism-with-%C3%AE-lactam-antibiotics-sensitizing-carbapenem-associated-multidrug-resistant-clinical-isolates-of-acinetobacter-baumannii
#20
Spencer Lee, Ghaida Saleh Al Razqan, Dong H Kwon
BACKGROUND: Infections caused by Acinetobacter baumannii were responsive to conventional antibiotic therapy. However, recently, carbapenem-associated multidrug resistant isolates have been reported worldwide and present a major therapeutic challenge. Epigallocatechin-3-Gallate (EGCG) extracted from green tea exhibits antibacterial activity. PURPOSE: We evaluated the antibacterial activity of EGCG and possible synergism with antibiotics in carbapenem-associated multidrug resistant A...
January 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
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