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https://www.readbyqxmd.com/read/28918467/anisodamine-inhibits-endoplasmic-reticulum-stress-associated-txnip-nlrp3-inflammasome-activation-in-rhabdomyolysis-induced-acute-kidney-injury
#1
Xiaopeng Yuan, Yitao Zheng, Chuanbao Chen, Changxi Wang
Anisodamine protects against free radical-induced cellular damage. This study aimed to investigate the protective effect of anisodamine on rhabdomyolysis-induced acute kidney injury (RIAKI). C57BL/6 J mice, TXNIP(-/-) and NLRP3 (-/-) (both were C57BL/6 J background) mice were used to construct RIAKI model. Anisodamine administration was performed on RIAKI mice only. Mice were divided into control, TXNIP-KD (knock down), LNPR3-KD, and anisodamine group (n = 15 in each group). The renal injury, renal function, renal tubular cells apoptosis and expression of Caspase-1, ASC, endoplasmic reticulum (ER) stress markers IRE-1α, CHOP, and ATF4, and interleukin (IL-1α, IL-1β, and IL-18) were detected...
September 16, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28917817/mechanistic-insight-into-degradation-of-endocrine-disrupting-chemical-by-hydroxyl-radical-an-experimental-and-theoretical-approach
#2
Ruiyang Xiao, Lingwei Gao, Zongsu Wei, Richard Spinney, Shuang Luo, Donghong Wang, Dionysios D Dionysiou, Chong-Jian Tang, Weichun Yang
Advanced oxidation processes (AOPs) based on formation of free radicals at ambient temperature and pressure are effective for treating endocrine disrupting chemicals (EDCs) in waters. In this study, we systematically investigated the degradation kinetics of bisphenol A (BPA), a representative EDC by hydroxyl radical (OH) with a combination of experimental and theoretical approaches. The second-order rate constant (k) of BPA with OH was experimentally determined to be 7.2 ± 0.34 × 10(9) M(-1) s(-1) at pH 7...
September 13, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28917756/facile-synthesis-of-copper-ii-decorated-functional-mesoporous-material-for-specific-adsorption-of-histidine-rich-proteins
#3
Jiaojiao Wang, Rui Zhang, Xiaxia Yang, Xiaoyan Liu, Haixia Zhang
The Cu(2+)-decorated functional mesoporous material was fabricated by thermally initiated free-radical polymerization of octavinyl polyhedral oligomeric silsesquioxane. It was used as adsorbent for highly specific separation of histidine (His)-rich proteins in blood and cell lysate based on immobilized metal affinity chromatography. The functional mesoporous material (named as PPOSS-IDA-Cu(2+)) was characterized in detail and its selectivity and binding capacity were evaluated using a His-rich protein (bovine hemoglobin, BHb) and other proteins (bovine serum albumin, myoglobin, lysozyme and horseradish peroxidase) containing fewer surface-exposed His residues as model proteins...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28917595/perioperative-and-oncologic-outcomes-of-nephrectomy-and-caval-thrombectomy-using-extracorporeal-circulation-and-deep-hypothermic-circulatory-arrest-for-renal-cell-carcinoma-invading-the-supradiaphragmatic-inferior-vena-cava-and-or-right-atrium
#4
Alessandro Nini, Umberto Capitanio, Alessandro Larcher, Paolo Dell'Oglio, Federico Dehò, Nazareno Suardi, Fabio Muttin, Cristina Carenzi, Massimo Freschi, Roberta Lucianò, Giovanni La Croce, Alberto Briganti, Renzo Colombo, Andrea Salonia, Alessandro Castiglioni, Patrizio Rigatti, Francesco Montorsi, Roberto Bertini
BACKGROUND: Radical nephrectomy (RN) and caval thrombectomy (CT) for renal cell carcinoma, with extracorporeal circulation (ECC) and deep hypothermic circulatory arrest (DHCA) is a challenging surgical approach. OBJECTIVE: To assess peri-operative and oncologic outcomes of renal cell carcinoma patients treated with RN and CT, using ECC and DHCA. DESIGN, SETTING, AND PARTICIPANTS: We retrospectively evaluated 46 patients who underwent RN and CT using ECC and DHCA...
September 13, 2017: European Urology
https://www.readbyqxmd.com/read/28917533/nanoparticles-of-a-polyaspartamide-based-brush-copolymer-for-modified-release-of-sorafenib-in-vitro-and-in-vivo-evaluation
#5
Melchiorre Cervello, Giovanna Pitarresi, Antonella Bavuso Volpe, Barbara Porsio, Daniele Balasus, Maria Rita Emma, Antonina Azzolina, Roberto Puleio, Guido Ruggero Loria, Stefano Puleo, Gaetano Giammona
In this paper, we describe the preparation of polymeric nanoparticles (NPs) loaded with sorafenib for the treatment of hepatocellular carcinoma (HCC). A synthetic brush copolymer, named PHEA-BIB-ButMA (PBB), was synthesized by Atom Trasnfer Radical Polymerization (ATRP) starting from the α-poly(N-2-hydroxyethyl)-d,l-aspartamide (PHEA) and poly butyl methacrylate (ButMA). Empty and sorafenib loaded PBB NPs were, then, produced by using a dialysis method and showed spherical morphology, colloidal size, negative ζ potential and the ability to allow a sustained sorafenib release in physiological environment...
September 13, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28917186/compounds-isolated-from-eriobotrya-deflexa-leaves-protect-against-ultraviolet-radiation-b-induced-photoaging-in-human-fibroblasts
#6
Chung-Yu Huang, Yi-Tzu Lin, Hsiang-Chun Kuo, Wen-Fei Chiou, Mei-Hsien Lee
Ultraviolet (UV) irradiation leads to skin photoaging because of the upregulation of matrix metalloproteinase (MMP)-1 and downregulation of type I collagen and tissue inhibitor of metalloproteinase (TIMP)-1. Eriobotrya deflexa (Hemsl.) Nakai (Rosaceae) is a flowering plant endemic to Taiwan, and its leaves have been used as an expectorant and in antitussive folk remedy. Our previous studies have demonstrated that an E. deflexa leaf extract functions as a free radical scavenger. The current evaluated the antiphotoaging effect of partitioned fractions and specific compounds from the leaves of E...
September 4, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28915689/different-long-term-oncologic-outcomes-after-radical-surgical-resection-for-neuroendocrine-carcinoma-and-adenocarcinoma-of-the-stomach
#7
Jian-Wei Xie, Jun Lu, Jian-Xian Lin, Chao-Hui Zheng, Ping Li, Jia-Bin Wang, Qi-Yue Chen, Long-Long Cao, Mi Lin, Ru-Hong Tu, Chang-Ming Huang
PURPOSE: To explore differences in long-term outcomes between gastric neuroendocrine carcinoma (GNEC) and gastric adenocarcinoma (GAC). METHODS: One hundred GNEC patients and 3089 GAC patients were enrolled. Differences in long-term outcomes between the groups were analyzed by 1:2 propensity score matching. RESULTS: Statistically significant differences between the groups were noted in terms of gender, American Society of Anesthesiologists score, tumor size, T stage, N stage, TNM stage and surgical approach...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915599/copy-number-variations-of-circulating-cell-free-dna-in-urothelial-carcinoma-of-the-bladder-patients-treated-with-radical-cystectomy-a-prospective-study
#8
Armin Soave, Felix K-H Chun, Timo Hillebrand, Michael Rink, Lars Weisbach, Bettina Steinbach, Margit Fisch, Klaus Pantel, Heidi Schwarzenbach
The aim of the present study was to establish a rapid profiling method using multiplex ligation-dependent probe amplification (MLPA) and characterize copy number variations (CNV) in circulating, cell-free DNA (cfDNA) in 85 urothelial carcinoma of the bladder (UCB) patients treated with radical cystectomy (RC). MLPA was tested for the use of cfDNA extracted from serum and plasma by various commercial extraction kits. Eighteen probes served as reference to control denaturation, ligation and amplification efficiency...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915480/facile-fabrication-of-mediator-free-z-scheme-photocatalyst-of-phosphorous-doped-ultrathin-graphitic-carbon-nitride-nanosheets-and-bismuth-vanadate-composites-with-enhanced-tetracycline-degradation-under-visible-light
#9
Yaocheng Deng, Lin Tang, Guangming Zeng, Jiajia Wang, Yaoyu Zhou, Jingjing Wang, Jing Tang, Longlu Wang, Chengyang Feng
To realize the sustainable employment of solar energy in contaminant degradation and environmental recovery, design and development of an efficient photocatalyst is urgently needed. Herein, a novel direct Z-scheme composite photocatalysts consist of phosphorous-doped ultrathin g-C3N4 nanosheets (PCNS) and bismuth vanadate (BiVO4) are developed via a one-pot impregnated precipitation method. The as-prepared hybrid nanocomposite was utilized for the degradation tetracycline (TC) under visible light irradiation...
September 7, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28915038/frustrated-lewis-pair-polymers-as-responsive-self-healing-gels
#10
Meng Wang, Fabio Nudelman, Rebecca Matthes, Michael Patrick Shaver
Steric bulk prevents the formation of strong bonds between Lewis acids and bases in Frustrated Lewis pairs (FLPs), where latent reactivity makes these reagents transformative in small molecule activations and metal-free catalysis. However, their use as a platform for developing materials chemistry is unexplored. Here we report a fully macromolecular FLP, built from linear copolymers that containing either a sterically encumbered Lewis base or Lewis acid as a pendant functional group. The target functional copolymers were prepared by a controlled radical copolymerization of styrene with designer boron or phosphorous containing monomers...
September 15, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28914789/phytochemical-constituents-health-benefits-and-industrial-applications-of-grape-seeds-a-mini-review
#11
REVIEW
Zheng Feei Ma, Hongxia Zhang
Grapes are one of the most widely grown fruits and have been used for winemaking since the ancient Greek and Roman civilizations. Grape seeds are rich in proanthocyanidins which have been shown to possess potent free radical scavenging activity. Grape seeds are a complex matrix containing 40% fiber, 16% oil, 11% proteins, and 7% complex phenols such as tannins. Grape seeds are rich sources of flavonoids and contain monomers, dimers, trimers, oligomers, and polymers. The monomeric compounds includes (+)-catechins, (-)-epicatechin, and (-)-epicatechin-3-O-gallate...
September 15, 2017: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28914764/antioxidant-activity-of-spices-and-their-impact-on-human-health-a-review
#12
REVIEW
Alexander Yashin, Yakov Yashin, Xiaoyan Xia, Boris Nemzer
Antioxidants are substances that prevent oxidation of other compounds or neutralize free radicals. Spices and herbs are rich sources of antioxidants. They have been used in food and beverages to enhance flavor, aroma and color. Due to their excellent antioxidant activity, spices and herbs have also been used to treat some diseases. In this review article, the chemical composition and antioxidant activity of spices and culinary herbs are presented. The content of flavonoids and total polyphenols in different spices and herbs are summarized...
September 15, 2017: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28914438/antihypercholesterolemic-antioxidant-and-renal-protective-effects-of-mengkudu-rubiaceae-fruit-in-nephropathy-induced-albino-rats
#13
U S Mahadeva Rao, C Shanmuga Sundaram
OBJECTIVE: To assess the modulatory impact of alcoholic extract of fruit of Mengkudu (AEFM, Morinda citrifolia L., Rubiaceae) on renal oxido-lipidemic stress in hypercholesterolemic albino rats. METHODS: Twenty-four male albino rats were randomly divided into four groups with six rats in each group: group I as control, group II fed with hypercholesterolemic diet (HCD) for 45 days (4% cholesterol and 1% cholic acid), Group III rats fed with HCD for 45 days + AEFM (300 mg/kg body weight/day orally) for last 30 days and group IV normal rats fed AEFM alone...
September 15, 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28913917/merging-2-2-cycloaddition-with-radical-1-4-addition-metal-free-access-to-functionalized-cyclobuta-a-naphthalen-4-ols
#14
Bo Jiang, Feng Liu, Jia-Yin Wang, Peng Zhou, Guigen Li, Wen-Juan Hao, Shu-Jiang Tu
Metal-free [2 + 2] cycloaddition and S-centered radical-induced 1,4-addition cascades have been achieved by treating benzene-linked allene-ynes with aryldiazonium tetrafluoroborates and DABCO-bis(sulfur dioxide) in a one-pot operation; the reaction provides a greener and practical access to functionalized cyclobuta[a]naphthalen-4-ols of valuable applications. More than 50 examples were examined to achieve up to excellent diastereoselectivity and yields. The reaction pathway is proposed to proceed through the sequence of [2 + 2] cycloaddition, insertion of SO2, 1,4-addition, diazotization and tautomerization...
September 14, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28913608/efficacy-of-%C3%AE-lipoic-acid-against-cadmium-toxicity-on-metal-ion-and-oxidative-imbalance-and-expression-of-metallothionein-and-antioxidant-genes-in-rabbit-brain
#15
Hamida M Saleh, Yasser S El-Sayed, Sherif M Naser, Abdelgawad S Eltahawy, Atsuto Onoda, Masakazu Umezawa
To explore the protective efficacy of α-lipoic acid (ALA) against Cd-prompted neurotoxicity, young male New Zealand rabbits (Oryctolagus cuniculus) were divided randomly into four groups. Group 1 (control) received demineralized water. Group 2 (Cd) administered cadmium chloride (CdCl2) 3 mg/kg bwt. Group 3 (ALA) administered ALA 100 mg/kg bwt. Group 4 (Cd + ALA) administered ALA 1 h after Cd. The treatments were administered orally for 30 consecutive days. Cd-induced marked disturbances in neurochemical parameters were indicated by the reduction in micro- and macro-elements (Zn, Fe, Cu, P, and Ca), with the highest reduction in Cd-exposed rabbits, followed by Cd + ALA group and then ALA group...
September 14, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28913533/synthesis-and-redox-reactions-of-bis-verdazyl-palladium-complexes
#16
Corey A Sanz, Zach R McKay, Shaun W C MacLean, Brian O Patrick, Robin G Hicks
The synthesis and ligand-centered redox chemistry of palladium complexes bearing two potentially bidentate verdazyl ligands is explored. Reaction of 1,5-diisopropyl-3-pyridin-2-yl-6-oxoverdazyl radical 1 with Pd(NCMe)4·2BF4 gives a complex containing two coordinated verdazyl radicals. The structure of this complex consists of one verdazyl bound to Pd in a bidentate mode and the second verdazyl bound in a monodentate fashion through the pyridine substituent; the fourth coordination site is occupied by a solvent molecule (acetonitrile (3) or dimethyl sulfoxide (4))...
September 15, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28913528/dna-protection-by-ectoine-from-ionizing-radiation-molecular-mechanisms
#17
Marc Benjamin Hahn, Susann Meyer, Maria-Astrid Schröter, Hans-Jörg Kunte, Tihomir Solomun, Heinz Sturm
Ectoine, a compatible solute and osmolyte, is known to be an effective protectant of biomolecules and whole cells against heating, freezing and extreme salinity. Protection of cells (human keratinocytes) by ectoine against ultraviolet radiation has also been reported by various authors, although the underlying mechanism is not yet understood. We present the first electron irradiation of DNA in a fully aqueous environment in the presence of ectoine and at high salt concentrations. The results demonstrate effective protection of DNA by ectoine against the induction of single-strand breaks by ionizing radiation...
September 15, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28913364/the-nrf2-keap1-are-pathway-and-oxidative-stress-as-a-therapeutic-target-in-type-ii-diabetes-mellitus
#18
REVIEW
Joshua A David, William J Rifkin, Piul S Rabbani, Daniel J Ceradini
Despite improvements in awareness and treatment of type II diabetes mellitus (TIIDM), this disease remains a major source of morbidity and mortality worldwide, and prevalence continues to rise. Oxidative damage caused by free radicals has long been known to contribute to the pathogenesis and progression of TIIDM and its complications. Only recently, however, has the role of the Nrf2/Keap1/ARE master antioxidant pathway in diabetic dysfunction begun to be elucidated. There is accumulating evidence that this pathway is implicated in diabetic damage to the pancreas, heart, and skin, among other cell types and tissues...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28913317/reconstruction-of-a-complex-scalp-defect-after-the-failure-of-free-flaps-changing-plans-and-strategy
#19
Youn Hwan Kim, Gyeong Hoe Kim, Sang Wha Kim
The ideal scalp reconstruction involves closure of the defect with similar hair-bearing local tissue in a single step. Various reconstructions can be used including primary closure, secondary healing, skin grafts, local flaps, and microvascular tissue transfer. A 53-year-old female patient suffered glioblastoma, which had recurred for the second time. The neurosurgeons performed radial debridement and an additional resection of the tumor, followed by reconstruction using a serratus anterior muscle flap with a split-thickness skin graft...
June 2017: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28911828/laparoscopic-sentinel-lymph-node-mapping-with-indocyanine-green-icg-using-ispies-platform-the-initial-experience-in-argentina
#20
Julian Di Guilmi, Maria Cecilia Darin, Maria Toscano, Gustavo Maya
OBJECTIVE: To demonstrate the initial experience in Argentina using the iSpies ICG platform in performing sentinel lymph node mapping in early-stage cervical cancer. Design Step-by-step video and pictures BACKGROUND: Laparoscopic and robotic sentinel lymph node mapping using ICG has been shown to be safe and feasible. However, the use of fluorescent imaging through a minimally invasive approach in developing countries is very limited given the cost restrictions of acquiring the near infrared technology and the fluorescent dyes...
September 11, 2017: Journal of Minimally Invasive Gynecology
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