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https://www.readbyqxmd.com/read/29334670/genetic-ablation-of-trpv1-exacerbates-pressure-overload-induced-cardiac-hypertrophy
#1
Beihua Zhong, Jack Rubinstein, Shuangtao Ma, Donna H Wang
Transient receptor potential vanilloid 1 (TRPV1) channels expressed in sensory nerves may regulate vascular tone and cardiovascular function via their anti-inflammatory effects by releasing neuropeptide calcitonin gene-related peptide (CGRP). Inflammation plays a role in the progression of cardiac hypertrophy and TRPV1 activation may be key to cardiac inflammatory processes. The aim of this study was to test the hypothesis that TRPV1 modulates inflammatory processes to protect the heart from pressure overload-induced hypertrophy and inflammatory responses...
January 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29333379/broccoli-brassica-oleracea-reduces-oxidative-damage-to-pancreatic-tissue-and-combats-hyperglycaemia-in-diabetic-rats
#2
Sithara Suresh, Mostafa Ibrahim Waly, Mohammad Shafiur Rahman, Nejib Guizani, Mohamed Abdullah Badar Al-Kindi, Halima Khalfan Ahmed Al-Issaei, Sultan Nasser Mohd Al-Maskari, Bader Rashid Said Al-Ruqaishi, Ahmed Al-Salami
Oxidative stress plays a pivotal role in the development of diabetes and hyperglycaemia. The protective effects of natural extracts against diabetes are mainly dependent on their antioxidant and hypoglycaemic properties. Broccoli (Brassica oleracea) exerts beneficial health effects in several diseases including diabetes; however, the mechanism has not been elucidated yet. The present study was carried out to evaluate the potential hypoglycaemic and antioxidant properties of aqueous broccoli extracts (BEs) in diabetic rats...
December 2017: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/29331788/curcumin-inhibits-cardiac-hypertrophy-and-improves-cardiovascular-function-via-enhanced-na-ca2-exchanger-expression-after-transverse-abdominal-aortic-constriction-in-rats
#3
Xiao-Jie Bai, Jun-Tao Hao, Jin Wang, Wei-Fang Zhang, Cai-Ping Yan, Jia-Hui Zhao, Zhi-Qing Zhao
BACKGROUND: This study tested the hypothesis that inhibition of cardiac hypertrophy and preservation of cardiac/endothelial function by the natural yellow pigment curcumin are associated with upregulated expression of Na+/Ca2+ exchanger (NCX) after transverse aortic constriction (TAC). METHODS: Male Wistar rats were subjected to TAC for 10 weeks and curcumin (50 mg/kg/day) was fed by gastric gavage during TAC. Expression of NCX and endothelial nitric oxide synthase (eNOS) was analyzed by Western blot and immunohistochemistry...
July 15, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29329627/comparative-efficacy-of-curcumin-and-paromomycin-against-cryptosporidium-parvum-infection-in-a-balb-c-model
#4
Mohammad Asadpour, Fatemeh Namazi, Seyed Mostafa Razavi, Saeed Nazifi
Cryptosporidium is a ubiquitous protozoan parasite causing gastrointestinal disorder in various hosts worldwide. The disease is self-limiting in the immunocompetent but life-threatening in immunodeficient individuals. Investigations to find an effective drug for the complete elimination of the Cryptosporidium infection are ongoing and urgently needed. The current study was undertaken to examine the anti-cryptosporidial efficacy of curcumin in experimentally infected mice compared with that of paromomycin. Oocysts were isolated from a pre-weaned dairy calf and identified as Cryptosporidium parvum using a nested- polymerase chain reaction (PCR) on Small subunit ribosomal ribonucleic acid (SSU rRNA) gene and sequencing analysis...
January 30, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29323739/fasudil-alleviates-pressure-overload-induced-heart-failure-by-activating-nrf2-mediated-antioxidant-responses
#5
Peng Guan, Yingran Liang, Na Wang
The RhoA/Rho-kinase cascade plays an important role in many aspects of cardiovascular function. This study aims to investigate the protective effects of fasudil, a Rho-kinase inhibitor, on pressure overload induced heart failure in rats. Pressure overload induced heart failure was induced in SD rats by banding the abdominal aorta for 8 weeks. The rats were divided into four groups: Sham, TAC, TAC plus low dose of fasudil and TAC plus high dose of fasudil group. Low dose and high dose fasudil were 5 mg/kg/day and 10 mg/kg/day respectively...
January 11, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29322014/protective-effects-of-salep-against-isoniazid-liver-toxicity-in-wistar-rats
#6
Hossein Kargar Jahromi, Morteza Pourahmad, Hassan Ali Abedi, Mohadeseh Karimi, Zahra Kargar Jahromi
Introduction: Isoniazid is a drug for treatment of tuberculosis. One of the main side effects of this drug is hepatotoxicity, which is a major cause of treatment interruption in tuberculosis. This study is about the preventive effect of Salep on this side effect of isoniazid. Materials and methods: This study is an experimental study in which the preventive effect of salep on isoniazid hepatotoxicity is evaluated. In this study 56 rats were randomly placed in 7 eight members groups including: control group, sham, isoniazid and four isoniazid/salep groups...
January 2018: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29321584/the-critical-role-of-phase-difference-in-theta-oscillation-between-bilateral-parietal-cortices-for-visuospatial-working-memory
#7
Philip Tseng, Kai-Chi Iu, Chi-Hung Juan
Visual working memory (VWM) refers to people's ability to maintain and manipulate visual information on line. Its capacity varies between individuals, and neuroimaging studies have suggested a link between one's VWM capacity and theta power in the parietal cortex. However, it is unclear how the parietal cortices communicate with each other in order to support VWM processing. In two experiments we employed transcranial alternate current stimulation (tACS) to use frequency-specific (6 Hz) alternating current to modulate theta oscillation between the left and right parietal cortex with either in-phase (0° difference, Exp 1), anti-phase (180° difference, Exp 2), or sham sinusoidal current stimulation...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321061/enoxaparin-attenuates-doxorubicin-induced-cardiotoxicity-in-rats-via-interfering-with-oxidative-stress-inflammation-and-apoptosis
#8
Reem Ali Shaker, Samer Hassan Abboud, Hayder Chasib Assad, Najah Hadi
BACKGROUND: Doxorubicin (DOX) is commonly used in the treatment of many types of cancers but its cardiotoxicity is limiting its clinical use. Beyond its anticoagulant action, enoxaparin (ENX), a low molecular weight heparin, has been shown to exert multiple pharmacological actions including antioxidant, anti-inflammatory and antiapoptotic effects. Therefore, the current study aimed to assess if ENX could ameliorate cardiotoxicity induced by DOX. METHODS: Twenty-one adult male Wistar albino rats were randomly allocated into three groups (n = 7 each) of control, receiving 0...
January 10, 2018: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29320510/adipose-tissue-atgl-modifies-the-cardiac-lipidome-in-pressure-overload-induced-left-ventricular-failure
#9
Janek Salatzki, Anna Foryst-Ludwig, Kajetan Bentele, Annelie Blumrich, Elia Smeir, Zsofia Ban, Sarah Brix, Jana Grune, Niklas Beyhoff, Robert Klopfleisch, Sebastian Dunst, Michal A Surma, Christian Klose, Michael Rothe, Frank R Heinzel, Alexander Krannich, Erin E Kershaw, Dieter Beule, P Christian Schulze, Nikolaus Marx, Ulrich Kintscher
Adipose tissue lipolysis occurs during the development of heart failure as a consequence of chronic adrenergic stimulation. However, the impact of enhanced adipose triacylglycerol hydrolysis mediated by adipose triglyceride lipase (ATGL) on cardiac function is unclear. To investigate the role of adipose tissue lipolysis during heart failure, we generated mice with tissue-specific deletion of ATGL (atATGL-KO). atATGL-KO mice were subjected to transverse aortic constriction (TAC) to induce pressure-mediated cardiac failure...
January 10, 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29319618/effect-of-conversion-to-ctla4ig-treatment-on-tacrolimus-induced-diabetic-rats
#10
Long Jin, Sun Woo Lim, Jian Jin, Kang Luo, Eun Jeong Ko, Byung Ha Chung, Hong Li Lin, Chul Woo Yang
BACKGROUND: The effect of conversion to cytotoxic T-lymphocyte-associated protein 4 immunoglobulin (CTLA4Ig) treatment on tacrolimus (TAC)-induced renal dysfunction is well known, but its effect on TAC-induced diabetes mellitus (DM) is still undetermined. In the present study, we tested the diabetogenicity of CTLA4Ig and evaluated the effect of conversion to CTLA4Ig treatment on TAC-induced diabetic rats. METHODS: We tested diabetogenicity of CTLA4Ig by escalating doses (0...
January 10, 2018: Transplantation
https://www.readbyqxmd.com/read/29318986/oxidative-status-and-lipid-profile-among-dogs-at-different-stages-of-visceral-leishmaniasis
#11
Mehmet Gültekin, Serdar Paşa, Kerem Ural, Canberk Balıkçı, Gamze Sevri Ekren Aşıcı, Gamze Gültekin
OBJECTIVE: The purpose of the study was to investigate the oxidative status and lipid profile among dogs at different stages of visceral leishmaniasis (VL). METHODS: Dogs with VL were divided into four groups according to the classification reported by the Leishvet group: stage I (n=9), stage II (n=11), stage III (n=6), and stage IV (n=6); these dogs were compared to healthy control dogs (n=14). The lipid profile [high-density lipoprotein (HDL), low-density lipoprotein (LDL), cholesterol, and triglyceride levels) and oxidative status [total antioxidant capacity (TAC), total oxidant status (TOS), and paraoxonase-1 (PON-1) activity] were evaluated...
December 2017: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/29318894/attempted-validation-of-44-reported-snps-associated-with-tacrolimus-troughs-in-a-cohort-of-kidney-allograft-recipients
#12
William S Oetting, Baolin Wu, David P Schladt, Weihua Guan, Rory P Remmel, Casey Dorr, Roslyn B Mannon, Arthur J Matas, Ajay K Israni, Pamala A Jacobson
AIM: Multiple genetic variants have been associated with variation in tacrolimus (TAC) trough concentrations. Unfortunately, additional studies do not confirm these associations, leading one to question if a reported association is accurate and reliable. We attempted to validate 44 published variants associated with TAC trough concentrations. MATERIALS & METHODS: Genotypes of the variants in our cohort of 1923 kidney allograft recipients were associated with TAC trough concentrations...
January 10, 2018: Pharmacogenomics
https://www.readbyqxmd.com/read/29317553/safety-profile-of-biosimilar-filgrastim-zarzio-zarxio-a-combined-analysis-of-phase-iii-studies
#13
Nadia Harbeck, Pere Gascón, Andriy Krendyukov, Nadja Hoebel, Sreekanth Gattu, Kimberly Blackwell
BACKGROUND: Evaluation of adverse events (AEs) in pivotal registration trials and ongoing postmarketing surveillance is important for all biologics, including biosimilars. A combined analysis of two pivotal registration studies was performed to strengthen evidence on safety for biosimilar filgrastim EP2006 in patients with breast cancer receiving myelosuppressive chemotherapy, a sensitive clinical setting to confirm biosimilarity of filgrastim. MATERIALS AND METHODS: Data were combined from two phase III studies of biosimilar filgrastim EP2006...
January 9, 2018: Oncologist
https://www.readbyqxmd.com/read/29317186/perturbation-of-theta-gamma-coupling-at-the-temporal-lobe-hinders-verbal-declarative-memory
#14
Gabriel Amador de Lara, Ivan Alekseichuk, Zsolt Turi, Albert Lehr, Andrea Antal, Walter Paulus
BACKGROUND: Phase-amplitude cross-frequency coupling (PAC) is characterized by the modulation of the power of a fast brain oscillation (e.g., gamma) by the phase of a slow rhythm (e.g., theta). PAC in different sub- and neocortical regions is known to underlie effective neural communication and correlates with successful long-term memory formation. OBJECTIVE/HYPOTHESIS: The present work aims to extend earlier observational data, by probing the functional role of theta-gamma PAC in the left temporal cortex in humans during verbal long-term memory encoding...
December 25, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/29315140/high-intrapatient-variability-of-tacrolimus-exposure-in-the-early-period-after-liver-transplantation-is-associated-with-poorer-outcomes
#15
Michel Rayar, Camille Tron, Caroline Jézéquel, Jean Marie Beaurepaire, Antoine Petitcollin, Pauline Houssel-Debry, Christophe Camus, Marie Clémence Verdier, Ammar Dehlawi, Mohamed Lakéhal, Véronique Desfourneaux, Bernard Meunier, Laurent Sulpice, Eric Bellissant, Karim Boudjema, Florian Lemaitre
BACKGROUND: Tacrolimus (TAC) is the cornerstone of immunosuppressive regimen in liver transplantation (LT). Its pharmacokinetics is characterized by a high inter- and intrapatient variability leading to an unpredictable dose-response relationship. The aim of our study was to evaluate the impact of TAC intrapatient variability (IPV) on graft and patient outcomes after liver transplantation. METHODS: We retrospectively analyzed 812 LT recipients treated with TAC. The IPV of TAC concentrations was estimated by calculating the coefficient of variation (CV) of whole blood trough concentrations...
January 8, 2018: Transplantation
https://www.readbyqxmd.com/read/29314656/mammalian-target-of-rapamycin-inhibition-attenuates-myocardial-ischaemia-reperfusion-injury-in-hypertrophic-heart
#16
Lei-Lei Ma, Xin Ma, Fei-Juan Kong, Jun-Jie Guo, Hong-Tao Shi, Jian-Bing Zhu, Yun-Zeng Zou, Jun-Bo Ge
Pathological cardiac hypertrophy aggravated myocardial infarction and is causally related to autophagy dysfunction and increased oxidative stress. Rapamycin is an inhibitor of serine/threonine kinase mammalian target of rapamycin (mTOR) involved in the regulation of autophagy as well as oxidative/nitrative stress. Here, we demonstrated that rapamycin ameliorates myocardial ischaemia reperfusion injury by rescuing the defective cytoprotective mechanisms in hypertrophic heart. Our results showed that chronic rapamycin treatment markedly reduced the phosphorylated mTOR and ribosomal protein S6 expression, but not Akt in both normal and aortic-banded mice...
January 4, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29312608/april-promotes-non-small-cell-lung-cancer-growth-and-metastasis-by-targeting-erk1-2-signaling
#17
Hengli Dou, Zhaohua Yan, Meng Zhang, Xiaoxin Xu
Non-small-cell lung cancer (NSCLC) is the major subtype of lung cancer, which is the most common cause of cancer-related mortality in the world. It is a complex disease involving multiple genetic alterations. As a cytokine belonging to the Tumor Necrosis Factor-α (TNF- α) family, the - a proliferation-inducing ligand (APRIL) expression and its signaling have been studied in many human solid tumor types, but the data on APRIL signaling in NSCLC are lacking. The aim of this study was to evaluate the APRIL expression and investigate its signaling in NSCLC...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29306805/changes-in-mycelia-growth-sporulation-and-virulence-of-phytophthora-capsici-when-challenged-by-heavy-metals-cu2-cr2-and-hg2-under%C3%A2-acid-ph-stress
#18
Peiqing Liu, Mengyao Wei, Jinzhu Zhang, Rongbo Wang, Benjin Li, Qinghe Chen, Qiyong Weng
Phytophthora capsici, an economically devastating oomycete pathogen, causes devastating disease epidemics on a wide range of vegetable plants and pose a grave threat to global vegetables production. Heavy metals and acid pH are newly co-occurring stresses to soil micro-organisms, but what can be expected for mycelia growth and virulence and how they injure the oomycetes (especially P. capsici) remains unknown. Here, the effects of different heavy metals (Cu2+, Cr2+, and Hg2+) on mycelia growth and virulence were investigated at different pHs (4...
January 4, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29305108/evaluation-of-the-p53-and-thioredoxin-reductase-in-sperm-from-asthenozoospermic-males-in-comparison-to-normozoospermic-males
#19
Mohmmad-Nabi Moradi, Jamshid Karimi, Iraj Khodadadi, Iraj Amiri, Manoochehr Karami, Massoud Saidijam, Akram Vatannejad, Heidar Tavilani
Thioredoxin (Trx) system has a defensive role against the harmful effect of oxidative stress in sperm. p53 is an important regulator of apoptosis and normal process of spermatogenesis. Regulation of p53 by redox state of the cell and Thioredoxin system has been reported. The aim of this study was to evaluate the ROS level, Thioredoxin reductase (TrxR) activity and p53 protein levels in sperm of asthenozoospermic and normozoospermic males. Semen samples from 80 donors were divided into asthenozoospermic (n=40) and normozoospermic (n=40) groups using the WHO criteria...
January 2, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29302278/comparison-of-total-antioxidant-capacity-of-saliva-in-women-with-gestational-diabetes-mellitus-and-non-diabetic-pregnant-women
#20
Ulduz Zamani-Ahari, Sahar Zamani-Ahari, Zahra Fardi-Azar, Parisa Falsafi, Milad Ghanizadeh
Background: Pregnancy is considered a stressful event, results in higher levels of oxidative stress and considerable changes in physiological and metabolic functions such as gestational diabetes mellitus (GDM). Due to the cumulative effect of antioxidants and considering the controversies in this area, this study was undertaken to investigate the total antioxidant capacity (TAC) of saliva in pregnant women whit gestational diabetes in comparison to non-diabetic pregnant women. Material and Methods: In this cross-sectional study (2015-16), a total of 31 women with a diagnosis of GDM and 59 non-diabetic pregnant women were included in the diabetic and control groups, respectively...
November 2017: Journal of Clinical and Experimental Dentistry
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