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Oxidative Medicine and Cellular Longevity

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https://www.readbyqxmd.com/read/28740572/effect-of-whole-body-cryotherapy-on-antioxidant-systems-in-experimental-rat-model
#1
Bronisława Skrzep-Poloczek, Ewa Romuk, Bernadeta Wiśnowiska, Aleksander J Owczarek, Piotr Choręza, Aleksander Sieroń, Ewa Birkner, Dominika Stygar
BACKGROUND: The purpose of this study was to verify the effect of whole-body cryotherapy (WBC) in rats on their antioxidant systems, lipid peroxidation products, and their total oxidative status at different exposure times and temperatures. METHODS: Antioxidants in serum, plasma, liver, and erythrocytes were evaluated in two study groups following 1 min of exposure to -60°C and -90°C, for 5 and 10 consecutive days. RESULTS: WBC increased the activity of superoxide dismutase, catalase in the group subjected to 5 and 10 days exposure, -60°C...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28740571/comparison-of-the-neuroprotective-and-anti-inflammatory-effects-of-the-anthocyanin-metabolites-protocatechuic-acid-and-4-hydroxybenzoic-acid
#2
Aimee N Winter, Matthew C Brenner, Noelle Punessen, Michael Snodgrass, Caleb Byars, Yingyot Arora, Daniel A Linseman
Anthocyanins are being increasingly investigated for their neuroprotective and antineuroinflammatory effects; however, the overall bioavailability of many anthocyanins is relatively low. In contrast, phenolic acids, metabolites of many polyphenols, including anthocyanins, have been shown to accumulate in tissue at higher concentrations than those of parent compounds, suggesting that these metabolites may be the bioactive components of anthocyanin-rich diets. We examined the neuroprotective capacity of two common phenolic acids, 4-hydroxybenzoic acid (HBA) and protocatechuic acid (PCA), in primary cultures of cerebellar granule neurons...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28740570/quercetin-reverses-rat-liver-preneoplastic-lesions-induced-by-chemical-carcinogenesis
#3
Gabriela Carrasco-Torres, Hugo Christian Monroy-Ramírez, Arturo Axayacatl Martínez-Guerra, Rafael Baltiérrez-Hoyos, María de Los Ángeles Romero-Tlalolini, Saúl Villa-Treviño, Xariss Sánchez-Chino, Verónica Rocío Vásquez-Garzón
Quercetin is a flavonoid widely studied as a chemopreventive agent in different types of cancer. Previously, we reported that quercetin has a chemopreventive effect on the liver-induced preneoplastic lesions in rats. Here, we evaluated if quercetin was able not only to prevent but also to reverse rat liver preneoplastic lesions. We used the modified resistant hepatocyte model (MRHM) to evaluate this possibility. Treatment with quercetin was used 15 days after the induction of preneoplastic lesions. We found that quercetin reverses the number of preneoplastic lesions and their areas...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28740569/dna-oncogenic-virus-induced-oxidative-stress-genomic-damage-and-aberrant-epigenetic-alterations
#4
REVIEW
Mankgopo Magdeline Kgatle, Catherine Wendy Spearman, Asgar Ali Kalla, Henry Norman Hairwadzi
Approximately 20% of human cancers is attributable to DNA oncogenic viruses such as human papillomavirus (HPV), hepatitis B virus (HBV), and Epstein-Barr virus (EBV). Unrepaired DNA damage is the most common and overlapping feature of these DNA oncogenic viruses and a source of genomic instability and tumour development. Sustained DNA damage results from unceasing production of reactive oxygen species and activation of inflammasome cascades that trigger genomic changes and increased propensity of epigenetic alterations...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28740568/methane-suppresses-microglial-activation-related-to-oxidative-inflammatory-and-apoptotic-injury-during-spinal-cord-injury-in-rats
#5
WeiHeng Wang, Xiaodong Huang, Jian Li, Aijun Sun, Jiangming Yu, Ning Xie, YanHai Xi, Xiaojian Ye
OBJECTIVE: We investigated the hypothesis that methane-rich saline (MS) can be used to repair spinal cord injury (SCI) in a rat model through suppressing microglial activation related to oxidative, inflammatory, and apoptotic injury. METHODS: MS was injected intraperitoneally in rats after SCI. Hematoxylin-eosin (HE) staining, oxidative stress, inflammatory parameters, and cell apoptosis were detected 72 h after SCI to determine the optimal dose. Then, we investigated the protective mechanisms and the long-term effects of MS on SCI...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28717410/fish-scale-collagen-peptides-protect-against-cocl2-tnf-%C3%AE-induced-cytotoxicity-and-inflammation-via-inhibition-of-ros-mapk-and-nf-%C3%AE%C2%BAb-pathways-in-hacat-cells
#6
Fazli Subhan, Hae Yeong Kang, Yeseon Lim, Muhammad Ikram, Sun-Yong Baek, Songwan Jin, Young Hun Jeong, Jong Young Kwak, Sik Yoon
Skin diseases associated with inflammation or oxidative stress represent the most common problem in dermatology. The present study demonstrates that fish scale collagen peptides (FSCP) protect against CoCl2-induced cytotoxicity and TNF-α-induced inflammatory responses in human HaCaT keratinocyte cells. Our study is the first to report that FSCP increase cell viability and ameliorate oxidative injury in HaCaT cells through mechanisms mediated by the downregulation of key proinflammatory cytokines, namely, TNF-α, IL-1β, IL-8, and iNOS...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28717409/influence-of-the-microstructure-and-silver-content-on-degradation-cytocompatibility-and-antibacterial-properties-of-magnesium-silver-alloys-in-vitro
#7
Zhidan Liu, Ronald Schade, Bérengère Luthringer, Norbert Hort, Holger Rothe, Sören Müller, Klaus Liefeith, Regine Willumeit-Römer, Frank Feyerabend
Implantation is a frequent procedure in orthopedic surgery, particularly in the aging population. However, it possesses the risk of infection and biofilm formation at the surgical site. This can cause unnecessary suffering to patients and burden on the healthcare system. Pure Mg, as a promising metal for biodegradable orthopedic implants, exhibits some antibacterial effects due to the alkaline pH produced during degradation. However, this antibacterial effect may not be sufficient in a dynamic environment, for example, the human body...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28717408/sirt3-enhances-mesenchymal-stem-cell-longevity-and-differentiation
#8
Ryan A Denu
Mesenchymal stem cells (MSCs) are multipotent cells that are currently being investigated in a wide variety of clinical trials for their anti-inflammatory and immunomodulatory properties as well as their osteogenic and chondrogenic capabilities. However, there are considerable interdonor variability and heterogeneity of MSC populations, making it challenging to compare different products. Furthermore, proliferation, differentiation, and immunomodulation of MSCs decrease with aging and ex vivo expansion. The sirtuins have emerged as a class of protein deacylases involved in aging, oxidative stress, and metabolism...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28713492/salvianolic-acid-exerts-cardioprotection-through-promoting-angiogenesis-in-animal-models-of-acute-myocardial-infarction-preclinical-evidence
#9
REVIEW
Long-Jie Yu, Ke-Jian Zhang, Jia-Zhen Zhu, Qun Zheng, Xiao-Yi Bao, Saroj Thapa, Yan Wang, Mao-Ping Chu
Radix Salviae miltiorrhizae, danshen root (danshen), is one of the widely used Chinese herbal medicines in clinics, containing rich phenolic compounds. Salvianolic acid is the main active compound responsible for the pharmacologic effects of danshen. Here, we aimed to evaluate the effects of salvianolic acid on cardioprotection through promoting angiogenesis in experimental myocardial infarction. Studies of salvianolic acid in animal models of myocardial infarction were obtained from 6 databases until April 2016...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28713491/mulberry-anthocyanin-extract-ameliorates-oxidative-damage-in-hepg2-cells-and-prolongs-the-lifespan-of-caenorhabditis-elegans-through-mapk-and-nrf2-pathways
#10
Fujie Yan, Yushu Chen, Ramila Azat, Xiaodong Zheng
Mulberry anthocyanins possess many pharmacological effects including liver protection, anti-inflammation, and anticancer. The aim of this study was to evaluate whether mulberry anthocyanin extract (MAE) exerts beneficial effects against oxidative stress damage in HepG2 cells and Caenorhabditis elegans. In vitro, MAE prevented cytotoxicity, increased glucose consumption and uptake, and eliminated excessive intracellular free radicals in H2O2-induced cells. Moreover, MAE pretreatment maintained Nrf2, HO-1, and p38 MAPK stimulation and abolished upregulation of p-JNK, FOXO1, and PGC-1α that were involved in oxidative stress and insulin signalling modulation...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28713490/picroside-ii-shows-protective-functions-for-severe-acute-pancreatitis-in-rats-by-preventing-nf-%C3%AE%C2%BAb-dependent-autophagy
#11
Xuehua Piao, Baohai Liu, Lianyi Guo, Fanji Meng, Leming Gao
Picroside II, from the herb Picrorhiza scrophulariiflora Pennell, has antioxidant and anti-inflammatory activities. However, its function on severe acute pancreatitis (SAP) and molecular mechanism remains unknown. The effects of picroside II on the SAP induced by cerulean were investigated. SAP rats were treated with picroside II (25 mg/kg). The severity of SAP was evaluated by using biochemical and histological analyses. Pancreatic cancer cell PANC-1 was transfected with ptfLC3 (an indicator of autophagic activity), pcDNA3...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28713489/the-inhibitory-effect-of-wenxinkeli-on-h9c2-cardiomyocytes-hypertrophy-induced-by-angiotensin-ii-through-regulating-autophagy-activity
#12
Jie Li, Yang Li, Ying Zhang, Dan Hu, Yonghong Gao, Hongcai Shang, Yanwei Xing
OBJECTIVES: We investigated the role of cardiomyocyte autophagy and its regulatory mechanisms by WenxinKeli (WXKL) in cells subjected to hypertrophy. METHODS: H9C2 cardiomyocytes were divided into 8 groups. Cytoskeletal proteins as well as endogenously expressed autophagy marker proteins were studied by confocal imaging. Western blotting was used to assess the levels of light chain-3 (LC3) and mechanistic target of rapamycin (mTOR). The cell viability assay was used to detect the content of ATP...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28713488/dietary-polyphenol-intake-but-not-the-dietary-total-antioxidant-capacity-is-inversely-related-to-cardiovascular-disease-in-postmenopausal-polish-women-results-of-wobasz-and-wobasz-ii-studies
#13
Anna M Witkowska, Anna Waśkiewicz, Małgorzata E Zujko, Danuta Szcześniewska, Andrzej Pająk, Urszula Stepaniak, Wojciech Drygas
The aim of the study was to assess the relationship between the dietary polyphenol intake (DPI) and the dietary total antioxidant capacity (DTAC) and the prevalence of cardiovascular disease (CVD) in postmenopausal women. Participants were 916 postmenopausal women diagnosed with CVD and 1683 postmenopausal women without history of CVD, who took part in the population-based studies carried out in Poland: WOBASZ (2003-2005) and WOBASZ II (2013-2014). Nutritional data were collected using a single 24-hour dietary recall...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28713487/moringa-oleifera-seeds-attenuate-vascular-oxidative-and-nitrosative-stresses-in-spontaneously-hypertensive-rats
#14
Joseph Iharinjaka Randriamboavonjy, Marc Rio, Pierre Pacaud, Gervaise Loirand, Angela Tesse
Moringa oleifera (MOI) is a tree currently used in traditional medicine in tropical Africa, America, and Asia for therapeutic applications in several disorders including arterial hypertension. We previously described a cardiac protective role of a treatment with MOI seeds in spontaneously hypertensive rats (SHR). Here, we investigated the effects of this treatment on oxidative and nitrosative vascular stresses in SHR, with normotensive Wistar Kyoto rats used as controls. Oxidative and nitrosative stresses detected in SHR aortas using the fluorescent dye dihydroethidine and protein nitrotyrosine staining were reduced in MOI-treated SHR aortas...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28713486/concurrent-aerobic-and-resistance-training-has-anti-inflammatory-effects-and-increases-both-plasma-and-leukocyte-levels-of-igf-1-in-late-middle-aged-type-2-diabetic-patients
#15
Giosuè Annibalini, Francesco Lucertini, Deborah Agostini, Luciana Vallorani, Annamaria Gioacchini, Elena Barbieri, Michele Guescini, Lucia Casadei, Annunziata Passalia, Marta Del Sal, Giovanni Piccoli, Mauro Andreani, Ario Federici, Vilberto Stocchi
Type 2 diabetes (T2D) is an age-related chronic disease associated with metabolic dysregulation, chronic inflammation, and activation of peripheral blood mononuclear cells (PBMC). The aim of this study was to assess the effects of a concurrent exercise training program on inflammatory status and metabolic parameters of T2D patients. Sixteen male patients (age range 55-70) were randomly assigned to an intervention group (n = 8), which underwent a concurrent aerobic and resistance training program (3 times a week; 16 weeks), or to a control group, which followed physicians' usual diabetes care advices...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28713485/micrornas-and-autophagy-fine-players-in-the-control-of-chondrocyte-homeostatic-activities-in-osteoarthritis
#16
REVIEW
Stefania D'Adamo, Silvia Cetrullo, Manuela Minguzzi, Ylenia Silvestri, Rosa Maria Borzì, Flavio Flamigni
Osteoarthritis (OA) is a debilitating degenerative disease of the articular cartilage with a multifactorial etiology. Aging, the main risk factor for OA development, is associated with a systemic oxidative and inflammatory phenotype. Autophagy is a central housekeeping system that plays an antiaging role by supporting the clearance of senescence-associated alterations of macromolecules and organelles. Autophagy deficiency has been related to OA pathogenesis because of the accumulation of cellular defects in chondrocytes...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28713484/moderate-autophagy-inhibits-vascular-smooth-muscle-cell-senescence-to-stabilize-progressed-atherosclerotic-plaque-via-the-mtorc1-ulk1-atg13-signal-pathway
#17
Zhenli Luo, Wenhuan Xu, Sai Ma, Hongyu Qiao, Lei Gao, Ran Zhang, Bo Yang, Ya Qiu, Jiangwei Chen, Ming Zhang, Bo Tao, Feng Cao, Yabin Wang
In order to investigate the effects of autophagy induced by rapamycin in the development of atherosclerosis plaque we established murine atherosclerosis model which was induced in ApoE(-/-) mice by high fat and cholesterol diet (HFD) for 16 weeks. Rapamycin and 3-Methyladenine (MA) were used as autophagy inducer and inhibitor respectively. The plaque areas in aortic artery were detected with HE and Oil Red O staining. Immunohistochemical staining were applied to investigate content of plaque respectively. In contrast to control and 3-MA groups, rapamycin could inhibit atherosclerosis progression...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28713483/the-treadmill-exercise-protects-against-dopaminergic-neuron-loss-and-brain-oxidative-stress-in-parkinsonian-rats
#18
Roberta Oliveira da Costa, Carlos Vinicius Jataí Gadelha-Filho, Ayane Edwiges Moura da Costa, Mariana Lima Feitosa, Dayane Pessoa de Araújo, Jalles Dantas de Lucena, Pedro Everson Alexandre de Aquino, Francisco Arnaldo Viana Lima, Kelly Rose Tavares Neves, Glauce Socorro de Barros Viana
Parkinson's disease (PD), a progressive neurological pathology, presents motor and nonmotor impairments. The objectives were to support data on exercise benefits to PD. Male Wistar rats were distributed into sham-operated (SO) and 6-OHDA-lesioned, both groups without and with exercise. The animals were subjected to treadmill exercises (14 days), 24 h after the stereotaxic surgery and striatal 6-OHDA injection. Those from no-exercise groups stayed on the treadmill for the same period and, afterwards, were subjected to behavioral tests and euthanized for neurochemical and immunohistochemical assays...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28713482/comparative-therapeutic-effects-of-minocycline-treatment-and-bone-marrow-mononuclear-cell-transplantation-following-striatal-stroke
#19
Celice C Souza, Michelle Castro da Silva, Rosana Telma Lopes, Marcelo M Cardoso, Lucas Lacerda de Souza, Adriano Guimarães Santos, Ijair Rogério Dos Santos, Edna C S Franco, Walace Gomes-Leal
We explored the comparative effects of minocycline treatment and intrastriatal BMMC transplantation after experimental striatal stroke in adult rats. Male Wistar adult rats were divided as follows: saline-treated (N = 5), minocycline-treated (N = 5), and BMMC-transplanted (N = 5) animals. Animals received intrastriatal microinjections of 80 pmol of endothelin-1 (ET-1). Behavioral tests were performed at 1, 3, and 7 days postischemia. Animals were treated with minocycline (50 mg/kg, i.p.) or intrastriatal transplants of 106 BMMCs at 24 h postischemia...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28706577/risperidone-induced-renal-damage-and-metabolic-side-effects-the-protective-effect-of-resveratrol
#20
Sedat Bilgiç, Deniz Taştemir Korkmaz, Sebile Azirak, Ayşe Nilay Güvenç, Nevin Kocaman, Mehmet Kaya Özer
OBJECTIVE: The aim of the study was to investigate the possible protective qualities of resveratrol (RSV) against the side effects of risperidone (RIS) in an experimental model in rat kidneys with histologic and biochemical assessments. MATERIALS AND METHODS: Experimental procedures were performed on 35 female Sprague Dawley rats. Rats were randomly divided into five groups: control, untreated rats (n = 7) were in group 1; group 2 was given 2 mg/kg/day RIS (n = 7); group 3 was treated with 2 mg/kg/day RIS and 20 mg/kg/day RSV (n = 7); group 4 was treated with 2 mg/kg/day RIS and 40 mg/kg/day RSV (n = 7); and group 5 was treated with 2 mg/kg/day RIS and 80 mg/kg/day RSV (n = 7)...
2017: Oxidative Medicine and Cellular Longevity
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