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https://www.readbyqxmd.com/read/29792186/involvement-of-the-cb-2-cannabinoid-receptor-in-cell-growth-inhibition-and-g0-g1-cell-cycle-arrest-via-the-cannabinoid-agonist-win-55-212-2-in-renal-cell-carcinoma
#1
Mohammed I Khan, Anna A Sobocińska, Klaudia K Brodaczewska, Katarzyna Zielniok, Malgorzata Gajewska, Claudine Kieda, Anna M Czarnecka, Cezary Szczylik
BACKGROUND: The anti-tumor properties of cannabinoids have been investigated in many in vitro and in vivo studies. Many of these anti-tumor effects are mediated via cannabinoid receptor types 1 and 2 (CB1 and CB2 ), comprising the endocannabinoid system (ECS). In this study, we investigated the ECS based on CB 1 and CB 2 receptor gene and protein expression in renal cell carcinoma (RCC) cell lines. In view of their further use for potential treatments, we thus investigated the roles of CB1 and CB2 receptors in the anti-proliferative action and signal transduction triggered by synthetic cannabinoid agonists [such as JWH-133 and WIN 55,212-2 (WIN-55)] in RCC cell lines...
May 23, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29792023/fern-9-11-ene-2%C3%AE-3%C3%AE-diol-action-on-insulin-secretion-in-hyperglycemic-conditions
#2
Allisson Jhonatan Gomes Castro, Luisa Helena Cazarolli, Gabrielle Da Luz, Delsi Altenhofen, Hemily Batista Da Silva, Francieli Kanumfre Carvalho, Moacir Geraldo Pizzolatti, Fátima Rmb Silva
The objective of this study was to investigate the effect and the mechanism of action of fernenediol as insulin secretagogue. Wistar rats were treated with 0.1; 1 and 10 mg/kg fernenediol and then induced hyperglycemia by oral glucose. The glycaemia, insulin, LDH, calcium and hepatic glycogen were analyzed. Considering the intestine and pancreas as targets for the triterpene action, the duodenum was used to verify the influence of fernenediol on intestinal glycosidases. Additionally, pancreatic islets were used for studies of 14 C-deoxyglucose uptake and influx of 45 Ca2+ in hyperglycemic medium with/without fernenediol in the presence/absence of an inhibitor/activator of KATP channels, glibenclamide, diazoxide, nifedipine, calcium chelator (BAPTA- AM) and H-89 and ST the inhibitors of the PKA and PKC enzymes...
May 24, 2018: Biochemistry
https://www.readbyqxmd.com/read/29789824/layered-double-hydroxide-poly-dopamine-composite-coating-with-surface-heparinization-on-mg-alloys-improved-anticorrosion-endothelialization-and-hemocompatibility
#3
Hua Li, Feng Peng, Donghui Wang, Yuqin Qiao, Demin Xu, Xuanyong Liu
Magnesium (Mg) and its alloys are promising cardiovascular stent materials due to their favourable physical properties and complete degradation in vivo. However, rapid degradation and poor cytocompatibility hinder their clinical applications. To enhance the corrosion resistance and endothelialization of the AZ31 alloy, a layered double hydroxide (LDH)/poly-dopamine (PDA) composite coating (LDH/PDA) was successfully fabricated. Polarization curves and the electrochemical impedance spectroscopy Nyquist spectrum test proved that the corrosion resistance of the LDH/PDA sample was significantly improved in vitro...
May 23, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29789532/ferroptosis-inducing-agents-compromise-in-vitro-human-islet-viability-and-function
#4
Antonio Bruni, Andrew R Pepper, Rena L Pawlick, Boris Gala-Lopez, Anissa F Gamble, Tatsuya Kin, Karen Seeberger, Gregory S Korbutt, Stefan R Bornstein, Andreas Linkermann, A M James Shapiro
Human islet transplantation has been hampered by donor cell death associated with the islet preparation procedure before transplantation. Regulated necrosis pathways are biochemically and morphologically distinct from apoptosis. Recently, ferroptosis was identified as a non-apoptotic form of iron-dependent regulated necrosis implicated in various pathological conditions. Mediators of islet oxidative stress, including glutathione peroxidase-4 (GPX4), have been identified as inhibitors of ferroptosis, and mechanisms that affect GPX4 function can impact islet function and viability...
May 22, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29788476/the-flutter-by-effect-a-comprehensive-study-of-the-fluttering-cusps-of-the-perceval-heart-valve-prosthesis
#5
Ali Aljalloud, Mohamed Shoaib, Sandrine Egron, Jessica Arias, Lachmandath Tewarie, Heike Schnoering, Shahram Lotfi, Andreas Goetzenich, Nima Hatam, Desiree Pott, Zhaoyang Zhong, Ulrich Steinseifer, Rachad Zayat, Ruediger Autschbach
OBJECTIVES: Sutureless aortic valve prostheses are gaining popularity due to the substantial reduction in cross-clamp time. In this study, we report our observations on the cusp-fluttering phenomenon of the Perceval bioprosthesis (LivaNova, London, UK) using a combination of technical and medical perspectives. METHODS: Between August 2014 and December 2016, a total of 108 patients (69% women) with a mean age of 78 years had aortic valve replacement using the Perceval bioprosthesis (34 combined procedures)...
May 17, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29787771/inhibition-of-pten-protects-pc12-cells-against-oxygen-glucose-deprivation-induced-cell-death-through-mitoprotection
#6
Fereshteh Farajdokht, Gisou Mohaddes, Elham Karimi-Sales, Taiebeh Kafshdooz, Javad Mahmoudi, Seyed Mohsen Aberoumandi, Pouran Karimi
Mitochondria involve in the determination of ischemic neuronal cell fate through regulation of apoptotic and necrotic cell death. Phosphatase and tensin homolog (PTEN) protein negatively regulates Akt/PKB signaling which is the major cell survival pathway. The current study aimed to examine the impact of SF1670, a potent PTEN inhibitor, on mitochondria-mediated cell survival pathways in an in vitro stroke-like model. PC12 cells were exposed to one hour oxygen and glucose deprivation (OGD) followed by different time points of reperfusion (0, 30, 60, 120 and 180 min) and SF1670 treatments...
May 19, 2018: Brain Research
https://www.readbyqxmd.com/read/29786849/isolation-and-characterization-of-wheat-derived-nonspecific-lipid-transfer-protein-2-nsltp2
#7
Sara Bosi, Jessica Fiori, Giovanni Dinelli, Neil Rigby, Emanuela Leoncini, Cecilia Prata, Valeria Bregola, Ilaria Marotti, Roberto Gotti, Marina Naldi, Luca Massaccesi, Marco Malaguti, Paul Kroon, Silvana Hrelia
Numerous studies support the protective role of bioactive peptides against cardiovascular diseases. Cereals represent the primary source of carbohydrates, but they also contain substantial amounts of proteins, therefore representing a potential dietary source of bioactive peptides with nutraceutical activities. The analysis of wheat extracts purified by chromatographic techniques by means of HPLC-UV/nanoLC-nanoESI-QTOF allowed the identification of a signal of about 7 kDa which, following data base searches, was ascribed to a nonspecific lipid-transfer protein (nsLTP) type 2 from Triticum aestivum (sequence coverage of 92%)...
May 22, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29786748/protective-effects-of-dehydrocostuslactone-on-rat-hippocampal-slice-injury-induced-by-oxygen%C3%A2-glucose-deprivation-reoxygenation
#8
Qipeng Zhao, Ailing Chen, Xiaobo Wang, Zhuanzhuan Zhang, Yunsheng Zhao, Yu Huang, Shuanglai Ren, Yafei Zhu
The present study aimed to investigate the protective effects of dehydrocostuslactone (DHL) against rat hippocampal slice injury caused by oxygen‑glucose deprivation/reoxygenation (OGD/R). Rat hippocampal slice injury was induced by OGD/R in vitro, and the degree of injury was evaluated through a lactate dehydrogenase (LDH) assay and 2,3,5‑triphenyltetrazolium chloride (TTC) staining. The protein expression levels of B‑cell lymphoma-2 (Bcl‑2), Bcl‑2‑associated X protein (Bax), cytochrome c (cyt‑c), apoptotic protease activating factor 1 (apaf‑1), caspase‑9, caspase‑7, caspase‑3, sequestosome 1 (SQSTM1) and microtubule‑associated protein 1 light chain 3 (LC3) were analyzed through western blot analysis...
May 17, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29786737/anti-amyloidogenic-properties-of-an-ethyl-acetate-fraction-from-actinidia-arguta-in-a%C3%AE-1-42-induced-icr-mice
#9
Jeong Su Ha, Jong Min Kim, Seon Kyeong Park, Jin Yong Kang, Du Sang Lee, Uk Lee, Dae-Ok Kim, Sung-Gil Choi, Ho Jin Heo
This study aimed to investigate the ameliorating effect of an ethyl acetate fraction from the fruit Actinidia arguta (EFAA) on amyloid beta (Aβ)-induced neurotoxicity and cognitive deficits in ICR mice. EFAA showed potent protective effects against Aβ-induced neurotoxicity through 2',7'-dichlorofluorescein diacetate (DCF-DA), 2',3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) and lactate dehydrogenase (LDH) release into the assay medium. EFAA treatment reduced the intracellular ROS level and lactate dehydrogenase (LDH) release in the mitochondria, and increased cell viability in Aβ-induced neuroblastoma MC-IXC cells...
May 22, 2018: Food & Function
https://www.readbyqxmd.com/read/29786189/-renal-infarction-multicentric-cases-in-piedmont
#10
Daria Motta, Andrea Airoldi, Serena Bainotti, Manuel Burdese, Andrea Campo, Luigia Costantini, Raffaella Cravero, Paola Mesiano, Giorgina B Piccoli, Olga Randone, Andrea Serra, Patrizia Vio, Roberto Boero
We describe factors associated to renal infarction, clinical, instrumental and laboratoristic features, and therapeutic strategies too. This is an observational, review and polycentric study of cases in Nephrologic Units in Piedmont during 2013-2015, with diagnosis of renal infarction by Computed Tomography Angiography (CTA). We collected 48 cases (25 M, age 57±16i; 23 F age 70±18, p = 0.007), subdivided in 3 groups based on etiology: group 1: cardio-embolic (n=19) ; group 2: coagulation abnormalities (n= 9); group 3: other causes or idiopathic (n=20)...
May 2018: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/29785914/fermented-camel-milk-prevents-carbon-tetrachloride-induced-acute-injury-in-kidney-of-mice
#11
Houda Hamed, Manel Gargouri, Salha Boulila, Fatma Chaari, Ferdaws Ghrab, Rim Kallel, Zied Ghannoudi, Tahia Boudawara, Semia Chaabouni, Abdelfattah El Feki, Ahmed Gargouri
Fermented milk is known to possess potent antioxidant activity. The present study was undertaken to assess the preventive effect of fermented camel milk (FCM) prepared using lactococcus lactis subsp. cremoris against CCl4 induced kidney damage in mice. Nephrotoxicity was induced in mice by a single dose of CCl4 (10 ml/kg 0·3% olive oil, ip). Female mice were pretreated daily with FCM for 15 d. Renal damage was associated with an increase in oxidative stress parameters (lipid peroxidation, protein carbonyl and changes in antioxidant enzyme activities and non-enzymatic antioxidant) and nephropathology markers...
May 2018: Journal of Dairy Research
https://www.readbyqxmd.com/read/29783820/-efficacy-of-bronchoalveolar-lavage-and-its-influence-factors-in-the-treatment-of-mycoplasma-pneumoniae-pneumonia-with-atelectasis
#12
M Yang, D H Yang, X Yang, Y S Wang, L Wu, Z M Chen
Objective: To investigate the efficacy of bronchoalveolar lavage (BAL) and its influence factors in the treatment of Mycoplasma pneumoniae pneumonia (MPP) with atelectasis. Methods: A retrospective case control study was performed on hospitalized MPP patients with atelectasis and received BAL in the Department of Pulmonology, Children's Hospital Zhejiang University School of Medicine from January 1, 2015 to July 31, 2017. Fever relieved in 48 hours and chest imaging improved in one week after BAL were considered effective...
May 2, 2018: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29783656/aging-resistant-functionalized-ldh%C3%A2-sas-nitrile-butadiene-rubber-composites-preparation-and-study-of-aging-kinetics-anti-aging-mechanism
#13
Tianxiang Li, Zhengren Shi, Xianru He, Ping Jiang, Xiaobin Lu, Rui Zhang, Xin Wang
With the aim of improving the anti-aging properties of nitrile-butadiene rubber (NBR), a functional organic filler, namely LDH⁻SAS, prepared by intercalating 4-amino-benzenesulfonic acid monosodium salt (SAS) into layered double hydroxides (LDHs) through anion exchange, was added to nitrile-butadiene rubber (NBR), giving the NBR/LDH⁻SAS composites. Successful preparation of LDH⁻SAS was confirmed by XRD, TGA and FTIR. LDH⁻SAS was well dispersed in the NBR matrix, owing to its strong interaction with the nitrile group of NBR...
May 18, 2018: Materials
https://www.readbyqxmd.com/read/29783643/hydroxysafflor-yellow-a-attenuates-lipopolysaccharide-induced-neurotoxicity-and-neuroinflammation-in-primary-mesencephalic-cultures
#14
Tian Wang, Yu-Xin Ding, Jie He, Cheng-Jun Ma, Yue Zhao, Zhen-Hua Wang, Bing Han
Lipopolysaccharide (LPS)-induced neuroinflammation triggers and accelerates the pathogenesis of Parkinson's disease (PD). Carthamus tinctorius L., a traditional Chinese medicine, has been widely used for the treatment of cerebrovascular disease. Hydroxysafflor Yellow A (HSYA) is an active component of C. tinctorius . The purpose of this study was to investigate whether HSYA could attenuate LPS-induced neurotoxicity and neuroinflammation in primary mesencephalic cultures. Cell viability was measured by MTT and LDH assays...
May 18, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29783010/translaminar-approach-for-treatment-of-hidden-zone-foraminal-lumbar-disc-herniations-considerations-on-the-surgical-technique-and-pre-operative-selection-of-patients-with-a-long-term-follow-up
#15
Christian Cossandi, Andrea Fanti, Andrea Gerosa, Andrea Bianco, Riccardo Fornaro, Emanuela Crobeddu, Sara Forgnone, Gabriele Panzarasa, Andrea Di Cristofori
BACKGROUND: Lumbar disc herniation (LDH) is a common degenerative disease of the lumbar spine with a prevalence of 1-3% in population studies according to some authors. In 10% of patients there is a fragment migrated cranially in the Macnab's "hidden zone". In selected cases, this fragment can be removed with a translaminar approach that has been described in 1998. Aim of our work is to provide a detailed description of the technical advantages and pitfalls of such approach reviewing a consecutive series of patients...
May 18, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29783008/percutaneous-endoscopic-lumbar-discectomy-for-l5s1-lumbar-disc-herniation-via-transforaminal-approach-versus-interlaminar-approach-a-systematic-review-and-meta-analysis
#16
REVIEW
Jiageng Chen, Xiyue Jing, Changping Li, Yu Jiang, Sijin Cheng, Jun Ma
BACKGROUND: s: Several studies have compared the clinical efficacy of percutaneous endoscopic lumbar discectomy (PELD) for L5S1 lumbar disc herniation (LDH) via transforaminal approach and interlaminar approach, however, with contradictory results. The aim of this study was to explore the comparison of efficacy and safety between percutaneous endoscopic transforaminal discectomy (PETD) and percutaneous endoscopic interlaminar discectomy (PEID) for L5S1 LDH. METHODS: Six common databases were comprehensively searched and relevant studies would be included into the analysis if it meet all the inclusion criteria...
May 18, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29782902/five-rare-dimeric-sesquiterpenes-exhibiting-potential-neuroprotection-activity-from-vladimiria-souliei
#17
Zhi-Li Wu, Qun Wang, Hong-Yuan Dong, Hui-liangLi, Shu-Mei Wang, Wei-Dong Zhang
Two rare C32 sesquiterpene lactone dimers, vlasouliolides J-K (1-2), together with three C30 sesquiterpene dimers, vlasoulioliones A-C (3-5), were isolated from Vladimiria souliei. Their chemical structures were elucidated by NMR and MS spectroscopic data. Among them, compounds 1, 3 and 5 were unambiguously established by Cu-Kα X-ray crystallographic analysis. Furthermore, compound 1 showed prominent neuroprotective effects against glutamate-induced neurotoxicity in PC-12 cells, with EC50 value of 2.11 ± 0...
May 18, 2018: Fitoterapia
https://www.readbyqxmd.com/read/29782860/tetramethylpyrazine-attenuates-lipopolysaccharide-induced-cardiomyocyte-injury-via-improving-mitochondrial-function-mediated-by-14-3-3%C3%AE
#18
Bowei Huang, Jiegeng You, Yang Qiao, Zelong Wu, Dan Liu, Dong Yin, Huan He, Ming He
Lipopolysaccharide (LPS) is one of the many reasons that can cause myocardial injury. Our previous works have demonstrated that 14-3-3γ could protect myocardium against LPS-induced injury. Tetramethylpyrazine (TMP), an alkaloid found in Chinese herbs, exerts myocardial protection in many ways with multiple targets. We hypothesized that the cardioprotection of TMP against LPS-induced injury is attributed to upregulation of 14-3-3γ and improvement of mitochondrial function. To test the hypothesis, we investigated the effects of TMP on LPS-induced injury to cardiomyocytes by determining cell viability, LDH and caspase-3 activities, reactive oxygen species and MMP levels, mPTP openness, and apoptosis rate...
May 18, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29782637/luteolin-ameliorates-rat-myocardial-ischemia-reperfusion-injury-through-peroxiredoxin-ii-activation
#19
Bo Wei, Qiao Lin, Ya-Ge Ji, Yi-Can Zhao, Li-Na Ding, Wen-Juan Zhou, Li-Hua Zhang, Chuan-Yu Gao, Wen Zhao
BACKGROUND AND PURPOSE: Antioxidants provide a promising therapeutic effect for the cardiovascular disease. Luteolin (LUT), a polyphenolic bioflavonoid, is known to confer cardioprotection, although the underlying mechanism, especially the role of LUT on the antioxidant enzymes (e.g. peroxiredoxin family, PRXs), remains elusive. EXPERIMENTAL APPROACH: The current study was designed to evaluate the impact of LUT on MI/R injury in vivo and in vitro, as well as the underlying mechanism with a focus on PRXs signaling...
May 21, 2018: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29782381/high-baseline-neutrophil-to-lymphocyte-ratio-predicts-worse-outcome-in-patients-with-metastatic-braf-positive-melanoma-treated-with-braf-and-mek-inhibitors
#20
Paweł Teterycz, Paulina Jagodzińska-Mucha, Bożena Cybulska-Stopa, Anna Mariuk-Jarema, Katarzyna Kozak, Hanna Koseła-Paterczyk, Anna M Czarnecka, Marcin Rajczykowski, Robert Dziura, Łukasz Galus, Jacek Mackiewicz, Tomasz Świtaj, Anna Klimczak, Slawomir Falkowski, Rafał Suwiński, Marek Ziobro, Iwona Ługowska, Piotr Rutkowski
Neutrophil-to-lymphocyte ratio (NLR) has been shown to be prognostic in several solid malignancies. There are limited data regarding its value during novel therapies in patients with melanoma. The aim of the study was to assess the practical utility of this ratio in patients with BRAF-mutant melanoma treated with a combination of BRAF and MEK inhibitors (BRAFi/MEKi). We included 215 patients with inoperable or metastatic melanoma who underwent BRAFi/MEKi treatment between October 2015 and June 2017. Baseline NLR and other complete blood count-derived inflammatory markers were tested for association with overall survival and progression-free survival in univariate and multivariate models...
May 18, 2018: Melanoma Research
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