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https://www.readbyqxmd.com/read/29345708/triphenylstannyl-arylimino-methyl-benzoates-with-selective-potency-that-induce-g1-and-g2-m-cell-cycle-arrest-and-trigger-apoptosis-via-ros-in-human-cervical-cancer-cells
#1
Tushar S Basu Baul, Imliwati Longkumer, Andrew Duthie, Priya Singh, Biplob Koch, M Fátima C Guedes da Silva
Metal complexes with organelle specificity and potent but selective cytotoxicity are highly desirable. A novel series of triphenylstannyl 4-((arylimino)methyl)benzoates (2-8) were obtained by the reactions of triphenylstannyl 4-formylbenzoate [Ph3Sn(L1)] 1 with primary aromatic amines. Two representative compounds (10, 11) were also synthesized by reacting aqua-triphenylstannyl 2-formylbenzoate [Ph3Sn(L9)(H2O)] (9) with aniline and p-fluoroaniline, respectively. These compounds were characterized by elemental analysis, IR and 1H, 13C and 119Sn NMR spectroscopy, as well as single-crystal X-ray diffraction for compounds 5, 7-11 and three pro-ligands...
January 18, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29344670/pgc-1%C3%AE-ameliorates-kidney-fibrosis-in-mice-with-diabetic-kidney-disease-through-an-antioxidative-mechanism
#2
Liwen Zhang, Jian Liu, Fangfang Zhou, Weiming Wang, Nan Chen
The production of reactive oxygen species (ROS) is a common phenomenon in podocyte impairment, which leads to the irreversible progression of chronic kidney diseases, such as diabetic kidney disease (DKD). Previous research has indicated that peroxisome proliferator‑activated receptor γ (PPARγ) coactivator‑1α (PGC‑1α) participates in mitochondrial biogenesis and energy metabolism in certain mitochondria‑enriched cells, including myocardial and skeletal muscle cells. Therefore, we hypothesized that PGC‑1α may be a protective nuclear factor against energy and oxidative stress in DKD...
January 16, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29336891/cupua%C3%A3-u-extract-reduces-nitrosative-stress-and-modulates-inflammatory-mediators-in-the-kidneys-of-experimental-diabetes
#3
Giovana R Punaro, Deyse Y Lima, Adelson M Rodrigues, Samuel Pugliero, Margaret G Mouro, Marcelo M Rogero, Elisa M S Higa
BACKGROUND & AIMS: We have previously reported an increased nitrosative stress in the kidneys of diabetic animals, which was reduced by an antioxidant probiotic. The present study evaluated whether the extract of cupuaçu (EC), an antioxidant compound rich in polyphenols and theograndins, when administered at a dose that can be reasonably obtained through daily consumption, could delay the onset of diabetic complications in the kidney. METHODS: Mouse immortalized mesangial cells (MiMC) were placed in medium normal glucose (NG) or high glucose (HG), with or without EC (500, 100, 50 or 10 μg/mL) during 24, 48 or 72 h for analysis of viability, proliferation, nitric oxide (NO) levels and reactive oxygen species or nitrogen (ROS/RNS)...
December 26, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29331752/synthesis-of-gold-i-phosphine-complexes-containing-the-2-brc6f4pph2-ligand-evaluation-of-anticancer-activity-in-2d-and-3d-spheroidal-models-of-hela-cancer-cells
#4
T Srinivasa Reddy, Steven H Privér, Nedaossadat Mirzadeh, Suresh K Bhargava
Newly synthesised mononuclear gold complexes containing the 2-BrC6F4PPh2 ligand have been fully characterised and their anticancer activity towards five human tumor [prostate (PC3), glioblastoma (U87MG), cervical (HeLa), fibrosarcoma (HT1080), ovarian (SKOV-3)] and normal human embryonic kidney (Hek-293T) cell lines investigated. Some of the synthesised gold complexes displayed higher cytotoxicity than cisplatin towards PC-3, HeLa and U87MG cells and inhibited the thioredoxin reductase (TrxR) enzyme, which is considered a potential target for new compounds in cancer treatment...
December 24, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29331520/vitamin-c-attenuates-biochemical-and-genotoxic-damage-in-common-carp-cyprinus-carpio-upon-joint-exposure-to-combined-toxic-doses-of-fipronil-and-buprofezin-insecticides
#5
Madiha Ghazanfar, Sana Shahid, Irfan Zia Qureshi
In the present study, potential protective role of Vitamin C (l-ascorbic acid) was investigated in aquaria acclimated common carp (Cyprinus carpio) following exposure for 96 h to combined toxic doses of fipronil (FP) and buprofezin (BPFN) insecticides in combination (FP: 200 μg/L; 4.57 × 10-7 mol/L and BPFN: 50 mg/L; 1.64 × 10-4 mol/L). At end of 96 h exposure, fish were supplemented with low (25 mg/L) and high (50 mg/L) doses of Vitamin C, added once daily to aquaria water for continuous three weeks...
January 5, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29329317/oxidative-stress-caused-by-activation-of-nadph-oxidase-4-promotes-contrast-induced-acute-kidney-injury
#6
Bo Young Jeong, Hoi Young Lee, Chang Gyo Park, Jaeku Kang, Seong-Lan Yu, Du-Ri Choi, Seung-Yun Han, Moon Hyang Park, Sungkwon Cho, Soo Young Lee, Won-Min Hwang, Sung-Ro Yun, Hye-Myung Ryu, Eun-Joo Oh, Sun-Hee Park, Yong-Lim Kim, Se-Hee Yoon
Contrast-induced acute kidney injury (CIAKI) is a leading cause of acute kidney injury following radiographic procedures. Intrarenal oxidative stress plays a critical role in CIAKI. Nicotinamide adenine dinucleotide 3-phosphate (NADPH) oxidases (Noxs) are important sources of reactive oxygen species (ROS). Among the various types of Noxs, Nox4 is expressed predominantly in the kidney in rodents. Here, we evaluated the role of Nox4 and benefit of Nox4 inhibition on CIAKI using in vivo and in vitro models. HK-2 cells were treated with iohexol, with or without Nox4 knockdown, or the most specific Nox1/4 inhibitor (GKT137831)...
2018: PloS One
https://www.readbyqxmd.com/read/29328400/microrna%C3%A2-146a-napdh-oxidase4-decreases-reactive-oxygen-species-generation-and-inflammation-in-a-diabetic-nephropathy-model
#7
Rong Jun Wan, Yue Hong Li
The present study investigated the role of microRNA (miR)‑146a in a diabetic nephropathy (DN) model, and its molecular mechanism. DN mice were given intraperitoneal injections of streptozotocin (55 mg/kg/day) for 5 consecutive days as an in vivo DN model. The HK‑2 human kidney cell line were exposed to 45% D‑glucose as an in vitro DN model. Firstly, it was demonstrated that miR‑146a expression was inhibited and NAPDH oxidase 4 (Nox4) was increased in DN mice. In HK‑2 cells, overexpression of miR‑146a inhibited Nox4 protein expression and decreased reactive oxygen species (ROS) generation, oxidative stress and inflammation, and suppressed vascular cell adhesion molecule‑1 (VCAM‑1) and intracellular adhesion molecule‑1 (ICAM‑1) protein expression...
January 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29300330/alpha-lipoic-acid-a-therapeutic-strategy-that-tend-to-limit-the-action-of-free-radicals-in-transplantation
#8
REVIEW
Nella Ambrosi, Diego Guerrieri, Fiorella Caro, Francisco Sanchez, Geraldine Haeublein, Domingo Casadei, Claudio Incardona, Eduardo Chuluyan
Organ replacement is an option to mitigate irreversible organ damage. This procedure has achieved a considerable degree of acceptance. However, several factors significantly limit its effectiveness. Among them, the initial inflammatory graft reaction due to ischemia-reperfusion injury (IRI) has a fundamental influence on the short and long term organ function. The reactive oxygen species (ROS) produced during the IRI actively participates in these adverse events. Therapeutic strategies that tend to limit the action of free radicals could result in beneficial effects in transplantation outcome...
January 4, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29290137/small-leucine-rich-proteoglycans-in-renal-inflammation-two-sides-of-the-coin
#9
Madalina V Nastase, Andrea Janicova, Heiko Roedig, Louise Tzung-Harn Hsieh, Malgorzata Wygrecka, Liliana Schaefer
It is now well-established that members of the small leucine-rich proteoglycan (SLRP) family act in their soluble form, released proteolytically from the extracellular matrix (ECM), as danger-associated molecular patterns (DAMPs). By interacting with Toll-like receptors (TLRs) and the inflammasome, the two SLRPs, biglycan and decorin, autonomously trigger sterile inflammation. Recent data indicate that these SLRPs, besides their conventional role as pro-inflammatory DAMPs, additionally trigger anti-inflammatory signaling pathways to tightly control inflammation...
October 1, 2017: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/29290051/protective-effects-of-selenium-on-cyclophosphamide-induced-oxidative-stress-and-kidney-injury
#10
Sibel Gunes, Varol Sahinturk, Sema Uslu, Adnan Ayhanci, Sedat Kacar, Ruhi Uyar
Cyclophosphamide (CP) is a common anticancer drug, but its use in cancer treatment is limited due to its severe toxicities induced mainly by oxidative stress in normal cells. Reactive oxygen species (ROS) lead to multiple organ injuries, including the kidneys. Selenium (Se) is a nutritionally essential trace element with antioxidant properties. In the present study, the possible protective effect of Se on CP-induced acute nephrotoxicity was investigated. Forty-two Sprague-Dawley rats were equally divided into six groups of seven rats in each...
December 30, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/29288813/procedures-for-leukocytes-isolation-from-lymphoid-tissues-and-consequences-on-immune-endpoints-used-to-evaluate-fish-immune-status-a-case-study-on-roach-rutilus-rutilus
#11
Hakim C Samaï, Damien Rioult, Anne Bado-Nilles, Laurence Delahaut, Justine Jubréaux, Alain Geffard, Jean-Marc Porcher, Stéphane Betoulle
The effects of two protocols (density gradient versus hypotonic lysis) used for leukocyte isolation from three major lymphoid tissue of fish (head-kidney, spleen and blood) were examined on some cell functional activities (tissue leucocytes distributions, phagocytosis, basal and burst oxidative activities) classically used to estimate the fish immune status. Experiments were conducted on roach (Rutilus rutilus), a cyprinid fish model often studied in different eco-physiological contexts (aquaculture, ecotoxicology …)...
December 27, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29285300/renal-oncocytoma-characterized-by-the-defective-complex-i-of-the-respiratory-chain-boosts-the-synthesis-of-the-ros-scavenger-glutathione
#12
Gerrit Kürschner, Qingzhou Zhang, Rosanna Clima, Yi Xiao, Jonas Felix Busch, Ergin Kilic, Klaus Jung, Nikolaus Berndt, Sascha Bulik, Hermann-Georg Holzhütter, Giuseppe Gasparre, Marcella Attimonelli, Mohan Babu, David Meierhofer
Renal oncocytomas are rare benign tumors of the kidney and characterized by a deficient complex I (CI) enzyme activity of the oxidative phosphorylation (OXPHOS) system caused by mitochondrial DNA (mtDNA) mutations. Yet, little is known about the underlying molecular mechanisms and alterations of metabolic pathways in this tumor. We compared renal oncocytomas with adjacent matched normal kidney tissues on a global scale by multi-omics approaches, including whole exome sequencing (WES), proteomics, metabolomics, and metabolic pathway simulation...
December 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/29250674/in-vivo-confocal-microscopy-quantification-of-reactive-oxygen-species-a-working-model-in-rat-kidney
#13
Adrian Ovidiu Văduva, Cosmin Glămeanu, Romeo Negrea, Mirela Danina Muntean, Alis Liliana Carmen Dema
Oxidative stress is a culprit responsible for the development of acute and chronic kidney diseases. We aimed to establish a working model for the dynamic in vivo assessment of reactive oxygen species (ROS) production in rat kidney. A randomized controlled study was performed in 36 adult male Wistar rats subjected to unilateral urinary obstruction (UUO) via ureteral ligation and compared to SHAM controls. Dihydroethidium (DHE) was injected in the femoral vein and in vivo confocal microscopy was performed in the 2nd, 6th and 10th day, respectively after surgery...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/29248720/ckip-1-affects-the-polyubiquitination-of-nrf2-and-keap1-via-mediating-smurf1-to-resist-hg-induced-renal-fibrosis-in-gmcs-and-diabetic-mice-kidneys
#14
Wenyan Gong, Zhiquan Chen, Yezi Zou, Lei Zhang, Junying Huang, Peiqing Liu, Heqing Huang
Our previous study indicated that Casein kinase 2 interacting protein-1 (CKIP-1) could promote the activation of the nuclear factor E2-related factor 2 (Nrf2)/ antioxidant response element (ARE) pathway, playing a significant role in inhibiting the fibrosis of diabetic nephropathy (DN). However, the underlying mechanism is still unknown. Here, we investigated whether CKIP-1 affects the polyubiquitination of Nrf2 and its cytosolic inhibitor kelch like ECH-associated protein 1 (Keap1) via mediating Smad ubiquitylation regulatory factor-1 (Smurf1) to promote the activation of the Nrf2/ARE signaling and resist high glucose (HG)-induced renal fibrosis in glomerular mesangial cells (GMCs) and diabetic mice kidneys...
February 1, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29238889/immunomodulatory-effects-of-rhodomyrtus-tomentosa-leaf-extract-and-its-derivative-compound-rhodomyrtone-on-head-kidney-macrophages-of-rainbow-trout-oncorhynchus-mykiss
#15
Pinanong Na-Phatthalung, Mariana Teles, Supayang Piyawan Voravuthikunchai, Lluís Tort, Camino Fierro-Castro
Rhodomyrtus tomentosa is a medicinal plant that shows biological effects including immunomodulatory activity on human and other mammals but not in fish. In this study, we evaluated the in vitro immunomodulatory effects of R. tomentosa leaf extract and its active compound, rhodomyrtone, on the immune responses, using rainbow trout (Oncorhynchus mykiss) head kidney (HK) macrophages as a model. The tested immune functions included the expression of genes involved in innate immune and inflammatory responses and the production of reactive oxygen species (ROS)...
December 13, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/29238727/glycyrrhizic-acid-prevents-diabetic-nephropathy-by-activating-ampk-sirt1-pgc-1%C3%AE-signaling-in-db-db-mice
#16
Shaozhang Hou, Ting Zhang, Yuan Li, Fengying Guo, Xiu Jin
Diabetic nephropathy (DN) is a major cause of end-stage renal disease (ESRD). Glycyrrhizic acid (GA) is an effective inhibitor of reactive oxygen species (ROS) production. We investigated the role of GA in the progression of renal injury in DN. Albumin (Alb)/creatinine (crea) levels were significantly lower, and renal histopathology was attenuated in the diabetic db/db mice that were treated with GA (15 mg/kg via intraperitoneal injection) once per day for eight weeks. These changes were associated with significantly lower levels of α-smooth muscle actin (α-SMA) and transforming growth factor β1 (TGF-β1) expression...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/29237999/the-relationships-among-hyperuricemia-body-mass-index-and-impaired-renal-function-in-type-2-diabetic-patients
#17
Yongmei Li, Xing Fan, Chunjun Li, Xinyue Zhi, Liyuan Peng, Hongling Han, Bei Sun
Chronic kidney disease (CKD) is a common chronic microvascular complication and the major cause of death in diabetic patients. This study was conceived to explore the possible mechanisms of how hyperuricemia and obesity contribute to renal function impairment in type 2 diabetic (T2DM) patients. A cross-sectional study in 609 participants recruited from a T2DM population in North China was conducted. The multiplicative interaction between body mass index (BMI) and uric acid (UA) level was assessed using an interaction term in a logistic regression analysis...
December 13, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/29237155/paracrine-activation-of-the-wnt-%C3%AE-catenin-pathway-by-bone-marrow-stem-cell-attenuates-cisplatin-induced-kidney-injury
#18
Xiaoyan Jiao, Jieru Cai, Xiaofang Yu, Xiaoqiang Ding
BACKGROUND/AIMS: Cisplatin-induced acute kidney injury (AKI) involves damage to tubular cells via excess reactive oxygen species (ROS) generation. Stem cell-based therapies have shown great promise in AKI treatment. In this study, we aimed to assess the protective effect and mechanism of bone marrow mesenchymal stem cell (BMSC)-derived conditioned medium (CM) against cisplatin-induced AKI. METHODS: In vitro, NRK-52E cells were incubated with cisplatin in the presence or absence of CM, followed by the assessment of cell viability, apoptosis and cell cycle distribution...
December 11, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29214868/sulfasalazine-induces-mitochondrial-dysfunction-and-renal-injury
#19
Hossein Niknahad, Reza Heidari, Roya Mohammadzadeh, Mohammad Mehdi Ommati, Forouzan Khodaei, Negar Azarpira, Narges Abdoli, Mahdi Zarei, Behnam Asadi, Maryam Rasti, Babak Shirazi Yeganeh, Vahid Taheri, Arastoo Saeedi, Asma Najibi
Sulfasalazine is a commonly used drug for the treatment of rheumatoid arthritis and inflammatory bowel disease. There are several cases of renal injury encompass sulfasalazine administration in humans. The mechanism of sulfasalazine adverse effects toward kidneys is obscure. Oxidative stress and its consequences seem to play a role in the sulfasalazine-induced renal injury. The current investigation was designed to investigate the effect of sulfasalazine on kidney mitochondria. Rats received sulfasalazine (400 and 600 mg/kg/day, oral) for 14 consecutive days...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/29205955/selection-of-antioxidants-against-ovarian-oxidative-stress-in-mouse-model
#20
Bojiang Li, Qiannan Weng, Zequn Liu, Ming Shen, Jiaqing Zhang, Wangjun Wu, Honglin Liu
Oxidative stress (OS) plays an important role in the process of ovarian granulosa cell apoptosis and follicular atresia. The aim of this study was to select antioxidant against OS in ovary tissue. Firstly, we chose the six antioxidants and analyzed the reactive oxygen species (ROS) level in the ovary tissue. The results showed that proanthocyanidins, gallic acid, curcumin, and carotene decrease the ROS level compared with control group. We further demonstrated that both proanthocyanidins and gallic acid increase the antioxidant enzymes activity...
December 4, 2017: Journal of Biochemical and Molecular Toxicology
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