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https://www.readbyqxmd.com/read/29334254/antioxidant-and-anti-proliferative-properties-of-extracts-from-heterotrophic-cultures-of-galdieria-sulphuraria
#1
Claudia Bottone, Rosa Camerlingo, Roberta Miceli, Giovanna Salbitani, Giuseppe Sessa, Giuseppe Pirozzi, Simona Carfagna
This study explores the possibility to use the extremophilic microalga Galdieria sulphuraria (strain 064) as a source of natural biomolecules with beneficial and protective effects on human health. Galdieria was cultivated in heterotrophy conditions and cells extracts for their antioxidant and anti-proliferative properties were tested. Galdieria extracts showed high antioxidant power tested through ABTS assay and revealed high glutathione and phycocyanin contents. Based on Annexin-V FITC/propidium iodide and MTT analysis, algae extracts inhibited the proliferation of human adenocarcinoma A549 cells (51...
January 15, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29333095/cinnamomum-cassia-extracts-suppress-human-lung-cancer-cells-invasion-by-reducing-u-pa-mmp-expression-through-the-fak-to-erk-pathways
#2
Hsing-Chen Wu, Chi-Ting Horng, You-Li Lee, Pei-Ni Chen, Chin-Yin Lin, Chen-Yu Liao, Yih-Shou Hsieh, Shu-Chen Chu
Cinnamomum cassia exhibits antioxidative, apoptotic, and cytostatic properties. These activities have been attributed to the modulation of several biological processes and are beneficial for possible pharmaceutical applications. However, the potential of C. cassia in retarding lung adenocarcinoma cells metastasis remains ambiguous. We determined whether C. cassia extract (CCE) reduces metastasis of human lung adenocarcinoma cells. The results showed that CCE treatment (up to 60 μg/mL) for 24 h exhibited no cytotoxicity on the A549 and H1299 cell lines but inhibited the motility, invasiveness, and migration of these cells by repressing matrix metalloproteinase (MMP)-2 and urokinase-type plasminogen activator (u-PA)...
2018: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/29333042/gas-chromatography-mass-spectrometry-profiling-in-methanolic-and-ethyl-acetate-root-and-stem-extract-of-corbichonia-decumbens-forssk-exell-from-thar-desert-of-rajasthan-india
#3
Sunita Arora, Manju Saini
Background: Corbichonia decumbens (Forssk.) Exell (Molluginaceae), recently has moved to Lophiocarpaceae as per angiospermic plant group (APG) III system, is an annual or short-lived, dwarf, glabrous subshrub, prefers to grow on rocky places and on sand-stones in dry, hot areas of Rajasthan. This is the potential plant with medicinal properties. Vegetative organs under study show antioxidant, anti-inflammatory, antiulcer, antimicrobial, and antinociception activity. Objective: This study was carried out to identify the phytoconstituents present in the methanolic and ethyl-acetate extract of root and stem of C...
December 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/29332042/protective-effects-of-indian-spice-curcumin-against-amyloid-%C3%AE-in-alzheimer-s-disease
#4
P Hemachandra Reddy, Maria Manczak, Xiangling Yin, Mary Catherine Grady, Andrew Mitchell, Sahil Tonk, Chandra Sekhar Kuruva, Jasvinder Singh Bhatti, Ramesh Kandimalla, Murali Vijayan, Subodh Kumar, Rui Wang, Jangampalli Adi Pradeepkiran, Gilbert Ogunmokun, Kavya Thamarai, Kandi Quesada, Annette Boles, Arubala P Reddy
The purpose of our article is to assess the current understanding of Indian spice, curcumin, against amyloid-β (Aβ)-induced toxicity in Alzheimer's disease (AD) pathogenesis. Natural products, such as ginger, curcumin, and gingko biloba have been used as diets and dietary supplements to treat human diseases, including cancer, cardiovascular, respiratory, infectious, diabetes, obesity, metabolic syndromes, and neurological disorders. Products derived from plants are known to have protective effects, including anti-inflammatory, antioxidant, anti-arthritis, pro-healing, and boosting memory cognitive functions...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29331880/preventive-effects-of-indole-3-carbinol-against-alcohol-induced-liver-injury-in-mice-via-antioxidant-anti-inflammatory-and-anti-apoptotic-mechanisms-role-of-gut-liver-adipose-tissue-axis
#5
Youngshim Choi, Mohamed A Abdelmegeed, Byoung-Joon Song
Indole-3-carbinol (I3C), found in Brassica family vegetables, exhibits antioxidant, anti-inflammatory, and anti-cancerous properties. Here, we aimed to evaluate the preventive effects of I3C against ethanol (EtOH)-induced liver injury and study the protective mechanism(s) by using the well-established chronic-plus-binge alcohol exposure model. The preventive effects of I3C were evaluated by conducting various histological, biochemical, and real-time PCR analyses in mouse liver, adipose tissue, and colon, since functional alterations of adipose tissue and intestine can also participate in promoting EtOH-induced liver damage...
December 10, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29331758/caspase-3-mapk-pathways-as-main-regulators-of-the-apoptotic-effect-of-the-phyto-mediated-synthesized-silver-nanoparticle-from-dried-stem-of-eleutherococcus-senticosus-in-human-cancer-cells
#6
Chun Gon Kim, Verónica Castro-Aceituno, Ragavendran Abbai, Hyun A Lee, Shakina Yesmin Simu, Yaxi Han, Joon Hurh, Yeon-Ju Kim, Deok Chun Yang
Siberian ginseng (Eleutherococcus senticosus) was used for the synthesis of an ecofriendly silver nanoparticle (Sg-AgNP), which has exhibited antibacterial, antioxidant effect and lower cytotoxicity to normal cells in comparison to human cancer cells. Although, the potential anticancer activity of Sg-AgNP has not been determined. In this study, two cancer cell lines were used to evaluate the cytotoxicity and apoptotic effect of Sg-AgNP along with the determination of the role of the Caspase-3 / p38 MAPK pathways...
January 9, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29331741/extracellular-acidification-induces-ros-and-mptp-mediated-death-in-hek293-cells
#7
José Teixeira, Farhan Basit, Herman G Swarts, Marleen Forkink, Paulo J Oliveira, Peter H G M Willems, Werner J H Koopman
The extracellular pH (pHe) is a key determinant of the cellular (micro)environment and needs to be maintained within strict boundaries to allow normal cell function. Here we used HEK293 cells to study the effects of pHe acidification (24h), induced by mitochondrial inhibitors (rotenone, antimycin A) and/or extracellular HCl addition. Lowering pHe from 7.2 to 5.8 reduced cell viability by 70% and was paralleled by a decrease in cytosolic pH (pHc), hyperpolarization of the mitochondrial membrane potential (Δψ), increased levels of hydroethidine-oxidizing ROS and stimulation of protein carbonylation...
December 30, 2017: Redox Biology
https://www.readbyqxmd.com/read/29331665/blocking-lpa-dependent-signaling-increases-ovarian-cancer-cell-death-in-response-to-chemotherapy
#8
LeAnn C Rogers, Ryan R Davis, Naveen Said, Thomas Hollis, Larry W Daniel
The paradoxical role of reactive oxygen species in cell death versus cell survival establishes a delicate balance between chemotherapy efficacy and management of detrimental side effects. Normal proliferative signaling requires that cells remain inside a redox range that allows reversible protein oxidation to occur. Shifting the redox environment toward highly reducing or oxidizing states leads to cellular stress and cell death. Reactive oxygen species produced in response to Taxol and cisplatin treatment are necessary for effective cancer cell killing but the same ROS leads to damaging side effects in normal tissues...
January 4, 2018: Redox Biology
https://www.readbyqxmd.com/read/29331422/fept-cys-nanoparticles-induce-ros-dependent-cell-toxicity-and-enhance-chemo-radiation-sensitivity-of-nsclc-cells-in-vivo-and-in-vitro
#9
Yingming Sun, Hongtao Miao, Shijing Ma, Lei Zhang, Chengcheng You, Fang Tang, Cui Yang, Xiaoli Tian, Feng Wang, Yuan Luo, Xiangjie Lin, Hui Wang, Chunyang Li, Zhijun Li, Hongnv Yu, Xuefeng Liu, Yu Xiao, Yan Gong, Junhong Zhang, Hong Quan, Conghua Xie
FePt-Cys nanoparticles (FePt-Cys NPs) have been well used in many fields, despite their poor solubility and stability. We synthetized a cysteine surface modified FePt NPs, which exhibited good solubility, stability and biocompatibility. We explored the insight mechanisms of the antitumor effects of this new nanoparticle system in lung cancer cells. In the in vitro study, FePt-Cys NPs induced a reactive oxygen species (ROS) burst, which suppressed the antioxidant protein expression and induced cell apoptosis...
January 10, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29330105/redox-regulation-of-micrornas-in-cancer
#10
Jiang Lan, Zhao Huang, Jichun Shao, Canhua Huang
Dysregulation of microRNAs (miRNAs) has long been implicated in tumorigenesis, whereas the underlying mechanisms remain largely unknown. Oxidative stress is a hallmark of cancer that involved in multiple pathophysiological processes, including the aberrant regulation of miRNAs. Compelling evidences have implied complicated interplay between reactive oxygen species (ROS) and miRNAs. Indeed, ROS induces carcinogenesis through either reducing or increasing the miRNA level, leading to the activation of oncogenes or silence of tumor suppressors, respectively...
January 9, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29329615/synthesis-and-cytotoxicity-evaluation-of-3-amino-2-hydroxypropoxygenistein-derivatives
#11
Xiao-Ting Geng, Jing-Jing Tang, Kun-Peng Cheng, Yuan-Tao Fu, Rong Hu, Jin-Rong Lu
Soy isoflavones exhibit various biological activities, such as antioxidant, anti-tumor, anti-inflammatory, and cardiovascular protective effects. The present study was designed to investigate the effects of sixteen synthesized 3-amino-2-hydroxypropoxy genistein derivatives on cell proliferation and activation of Nrf2 (Nuclear factor erythroid 2-related factor 2)/ARE (antioxidant response elements) pathway in human cancer cell lines. Most of the tested compounds exerted greater cytotoxic activity than genistein, as measured by MTT assay...
November 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/29329564/phytochemical-analysis-antioxidant-and-anti-inflammatory-potential-of-feretia-apodanthera-root-bark-extracts
#12
Oluwayinka Olufunmilayo Owolabi, Dorcas Bolanle James, Ibrahim Sani, Binda T Andongma, Opeoluwa O Fasanya, Barnabas Kure
BACKGROUND: Inflammation has been implicated in many disorders, including cancer and available therapies elicit adverse effects. Plants of the family Rubiaceae have shown potency against inflammation. The anti-inflammatory and anti-oxidant potential of Feretia apodanthera was investigated in this study to evaluate its effectiveness. METHODS: The phytochemical, antioxidant and anti-inflammatory potential of root bark (n-Hexane, diethyl ether, ethanol and aqueous) extracts of Feretia apodanthera was investigated in this study...
January 12, 2018: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29329420/pyrrolidine-dithiocarbamate-reverses-bcl-xl-mediated-apoptotic-resistance-to-doxorubicin-by-inducing-paraptosis
#13
Seok Soon Park, Dong Min Lee, Jun Hee Lim, Dongjoo Lee, Sang Jun Park, Hwan Myung Kim, Seonghyang Sohn, Gyesoon Yoon, Young Woo Eom, Seong-Yun Jeong, Eun Kyung Choi, Kyeong Sook Choi
Elevated Bcl-xL expression in cancer cells contributes to DOX resistance, leading to failure in chemotherapy. In addition, the clinical use of high-dose doxorubicin (DOX) in cancer therapy has been limited by issues with cardiotoxicity and hepatotoxicity. Here, we show that co-treatment with pyrrolidine dithiocarbamate (PDTC) attenuates DOX-induced apoptosis in Chang-L liver cells and human hepatocytes, but overcomes DOX resistance in Bcl-xL-overexpressing Chang-L cells and several hepatocellular carcinoma (HCC) cell lines with high Bcl-xL expression...
January 10, 2018: Carcinogenesis
https://www.readbyqxmd.com/read/29329229/chemical-composition-and-evaluation-of-the-biological-properties-of-the-essential-oil-of-the-dietary-phytochemical-lippia-citriodora
#14
Eleni Fitsiou, Gregoria Mitropoulou, Katerina Spyridopoulou, Manolis Vamvakias, Haido Bardouki, Alex Galanis, Katerina Chlichlia, Yiannis Kourkoutas, Mihalis Ι Panayiotidis, Aglaia Pappa
The aim of the study was to characterize the chemical composition and biological properties of the essential oil from the plant Lippia citriodora grown in Greece. The essential oil volatiles were analyzed by gas chromatography-mass spectrometry GC-MS indicating citral as the major component. Τhe antimicrobial properties were assayed using the disk diffusion method and the minimum inhibitory and non-inhibitory concentration values were determined. Listeria monocytogenes, Staphylococcus epidermidis, Staphylococcus aureus, Saccharomyces cerevisiae, and Aspergillus niger were sensitive to Lippia citriodora oil, but not Escherichia coli, Salmonella Enteritidis, Salmonella typhimurium, and Pseudomonas fragi...
January 12, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29329195/dietary-antioxidants-and-health-promotion
#15
EDITORIAL
Dejian Huang
Accumulating scientific evidence suggests that over-production of reactive oxygen species (ROS) may be the root cause of chronic diseases such as cancer, cardiovascular diseases, neurodegeneration, and ageing per se [1,2].[...].
January 12, 2018: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29325451/expression-of-sestrin-genes-in-radiotherapy-for-prostate-cancer-and-its-association-with-fatigue-a-proof-of-concept-study
#16
Velda J Gonzalez, Farnoosh Abbas-Aghababazadeh, Brooke L Fridley, Tomar Ghansah, Leorey N Saligan
Genetic factors that influence inflammation and energy production/expenditure in cells may affect patient outcomes following treatment with external beam radiation therapy (EBRT). Sestrins, stress-inducible genes with antioxidant properties, have recently been implicated in several behaviors including fatigue. This proof-of-concept study explored whether the sestrin family of genes ( SESN1, SESN2, and SESN3) were differentially expressed from baseline to the midpoint of EBRT in a sample of 26 Puerto Rican men with nonmetastatic prostate cancer...
January 1, 2018: Biological Research for Nursing
https://www.readbyqxmd.com/read/29325444/redox-paradox-a-novel-approach-to-therapeutics-resistant-cancer
#17
Luksana Chaiswing, William H St Clair, Daret K St Clair
Cancer cells that are resistant to radiation and chemotherapy are a major problem limiting the success of cancer therapy. Aggressive cancer cells depend on elevated intracellular levels of reactive oxygen species (ROS) to proliferate, self-renew, and metastasize. As a result, these aggressive cancers maintain high basal levels of ROS compared to normal cells. The prominence of the redox state in cancer cells led us to consider whether increasing the redox state to the condition of oxidative stress could be used as a successful adjuvant therapy for aggressive cancers...
January 12, 2018: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29324385/ameliorative-effects-of-selenium-on-arsenic-induced-cytotoxicity-in-pc12%C3%A2-cells-via-modulating-autophagy-apoptosis
#18
Md Mostafizur Rahman, Rachael A Uson-Lopez, Md Tajuddin Sikder, Gongxun Tan, Toshiyuki Hosokawa, Takeshi Saito, Masaaki Kurasaki
Arsenic is well known toxicant responsible for human diseases including cancers. On the other hand, selenium is an essential trace element with significant chemopreventive effects, anticancer potentials and antioxidant properties. Although previous studies have reported antagonism/synergism between arsenic and selenium in biological systems, the biomolecular mechanism/s is still inconclusive. Therefore, to elucidate the molecular phenomena in cellular level, we hypothesized that co-exposure of selenium with arsenic may have suppressive effects on arsenic-induced cytotoxicity...
December 28, 2017: Chemosphere
https://www.readbyqxmd.com/read/29323702/sirtuin-3-silencing-improves-oxaliplatin-efficacy-through-acetylation-of-mnsod-in-colon-cancer
#19
Margalida Torrens-Mas, Reyniel Hernández-López, Jordi Oliver, Pilar Roca, Jorge Sastre-Serra
Sirtuin 3 (SIRT3) is the major mitochondria deacetylase and regulates ROS levels by targeting several key proteins, such as those involved in mitochondrial function and antioxidant defenses. This way, SIRT3 balances ROS production and scavenging and promotes cell survival. The aim of this study was to analyze the effect of SIRT3 silencing on the antioxidant response in SW620 colon cancer cell line, and whether this intervention could improve efficacy of oxaliplatin, a common drug used to treat colon cancer...
January 11, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29322058/gas-chromatography-gc-mass-analysis-and-bioactivity-of-essential-oil-from-aerial-parts-of-ferulago-trifida-antimicrobial-antioxidant-ache-inhibitory-general-toxicity-mtt-assay-and-larvicidal-activities
#20
Saeed Tavakoli, Hassan Vatandoost, Reza Zeidabadinezhad, Reza Hajiaghaee, Abbas Hadjiakhoondi, Mohammad Reza Abai, Narguess Yassa
Background: We aimed to investigate different biological properties of aerial parts essential oil of Ferulago trifida Boiss and larvicidal activity of its volatile oils from all parts of plant. Methods: Essential oil was prepared by steam distillation and analyzed by Gas chromatography and GC/Mass. Antioxidant, antimicrobial, cytotoxic effects and AChE inhibitory of the oil were investigated using DPPH, disk diffusion method, MTT assay and Ellman methods. Larvicidal activity of F...
September 2017: Journal of Arthropod-borne Diseases
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