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https://www.readbyqxmd.com/read/28820183/technique-of-retinal-gene-therapy-delivery-of-viral-vector-into-the-subretinal-space
#1
K Xue, M Groppe, A P Salvetti, R E MacLaren
PurposeSafe and reproducible delivery of gene therapy vector into the subretinal space is essential for successful targeting of the retinal pigment epithelium (RPE) and photoreceptors. The success of surgery is critical for the clinical efficacy of retinal gene therapy. Iatrogenic detachment of the degenerate (often adherent) retina in patients with hereditary retinal degenerations and small volume (eg, 0.1 ml) subretinal injections pose new surgical challenges.MethodsOur subretinal gene therapy technique involved pre-operative planning with optical coherence tomography (OCT) and autofluorescence (AF) imaging, 23 G pars plana vitrectomy, internal limiting membrane staining with Membrane Blue Dual (DORC BV, Zuidland, Netherlands), a two-step subretinal injection using a 41 G Teflon tipped cannula (DORC) first with normal saline to create a parafoveal bleb followed by slow infusion of viral vector via the same self-sealing retinotomy...
August 18, 2017: Eye
https://www.readbyqxmd.com/read/28819188/highly-stabilized-core-satellite-gold-nanoassemblies-in-vivo-dna-directed-self-assembly-peg-modification-and-cell-imaging
#2
Liangfeng Tang, Guiping Yu, Lishan Tan, Min Li, Xiulong Deng, Jianyu Liu, Aiqing Li, Xuandi Lai, Jianqiang Hu
Au nanoparticles (NPs) have important applications in bioimaging, clinical diagnosis and even therapy due to its water-solubility, easy modification and drug-loaded capability, however, easy aggregation of Au NPs in normal saline and serum greatly limits its applications. In this work, highly stabilized core-satellite Au nanoassemblies (CSAuNAs) were constructed by a hierarchical DNA-directed self-assembly strategy, in which satellite Au NPs number could be effectively tuned through varying the ratios of core-AuNPs-ssDNA and satellite-AuNPs-ssDNAc...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28818421/erbb-signaling-antagonist-ameliorates-behavioral-deficit-induced-by-phencyclidine-pcp-in-mice-without-affecting-metabolic-syndrome-markers
#3
Hagar Tadmor, Idit Golani, Ravid Doron, Ilana Kremer, Alon Shamir
Schizophrenia is a severe syndrome that affects about 1% of the world population. Since the mid-1950s, antipsychotics have been used to treat schizophrenia with preference for treating positive symptoms; however, their tolerance level is low, there are numerous side effects, and only some patients respond to the treatment. Antipsychotic medications that are more effective, better tolerated, and with fewer adverse effects are urgently needed. Given the accumulating evidence of the role filled by the ErbB signaling network in the biology of the dopamine, GABA, and glutamate systems, and in the etiology of schizophrenia, we hypothesized that the ErbB network is a candidate for development of a novel agent through which various symptoms of schizophrenia and other psychiatric disorders might be treated...
August 14, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28818364/involvement-of-schrabgdi1-from-solanum-chilense-in-endocytic-trafficking-and-tolerance-to-salt-stress
#4
Alex San Martín-Davison, Ricardo Pérez-Díaz, Flavia Soto, José Madrid-Espinoza, Enrique González-Villanueva, Lorena Pizarro, Lorena Norambuena, Jaime Tapia, Hiromi Tajima, Eduardo Blumwald, Simón Ruiz-Lara
Physiological responses of plants to salinity stress requires the coordinated activation of many genes. A salt-induced gene was isolated from roots of the wild tomato species Solanum chilense and named SchRabGDI1 because it encodes a protein with high identity to GDP dissociation inhibitors of plants. These proteins are regulators of the RabGTPase cycle that play key roles in intracellular vesicular trafficking. The expression pattern of SchRabGDI1 showed an early up-regulation in roots and leaves under salt stress...
October 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28817212/fingolimod-against-endotoxin-induced-fetal-brain-injury-in-a-rat-model
#5
And Yavuz, Mekin Sezik, Ozlem Ozmen, Halil Asci
AIM: Fingolimod is a sphingosine-1-phosphate receptor modulator used for multiple sclerosis treatment and acts on cellular processes such as apoptosis, endothelial permeability, and inflammation. We hypothesized that fingolimod has a positive effect on alleviating preterm fetal brain injury. METHODS: Sixteen pregnant rats were divided into four groups of four rats each. On gestational day 17, i.p. endotoxin was injected to induce fetal brain injury, followed by i...
August 17, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28815865/bone-marrow-and-adipose-mesenchymal-stem-cells-attenuate-cardiac-fibrosis-induced-by-methotrexate-in-rats
#6
Ebtehal Mohammad Fikry, Wedad A Hassan, Amany M Gad
Mesenchymal stem cells (MSCs) are an ideal adult stem cell with capacity for self-renewal and differentiation with an extensive tissue distribution. The present study evaluates the therapeutic effects of bone marrow mesenchymal stem cells (BM-MSCs) or adipose-derived mesenchymal stem cells (AD-MSCs) against the development of methotrexate (MTX)-induced cardiac fibrosis versus dexamethasone (DEX). Rats were allocated into five groups; group 1, received normal saline orally; group 2, received MTX (14 mg/kg/week for 2 weeks); groups 3 and 4, treated once with 2 × 10(6) cells of MTX + BM-MSCs and MTX + AD-MSCs, respectively; and group 5, MTX + DEX (0...
August 16, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28814930/comparing-lavage-of-the-peritoneal-cavity-with-lidocaine-bupivacaine-and-normal-saline-to-reduce-the-formation-of-abdominal-adhesion-bands-in-rats
#7
Hossein Parsa, Hengameh Saravani, Fatemeh Sameei-Rad, Marjan Nasiri, Zahra Farahaninik, Amirhossein Rahmani
BACKGROUND: Intra-abdominal adhesions are fibrous bands that develop after abdominal surgery or inflammation and cause mortality and morbidity following surgeries. This study aimed to assess the effects of bupivacaine, saline and two doses of lidocaine, after peritoneal lavage and to compare their effects in reducing abdominal adhesions in rat. METHODS: In a blinded, randomised, placebo-controlled clinical trial, 50 female rats were anaesthetised and the parietal peritoneum was scratched to induce punctate bleeding...
May 2017: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/28814248/pediatric-abdominal-trauma
#8
Tim Lynch
Abdominal trauma is present in approximately 25% of pediatric patients with major trauma and is the most common cause of unrecognized fatal injury in children. Pediatric abdominal trauma is typically blunt in nature with the spleen being the most common organ injured. Non-operative management is employed in over 95% of patients. Penetrating injuries are less common but often require operative management. Knowledge of specific mechanisms of injury aids the clinician in the diagnosis of specific injuries. Computed tomography (CT) is the gold standard in the identification of intra-abdominal injury...
August 14, 2017: Current Pediatric Reviews
https://www.readbyqxmd.com/read/28814141/effects-of-calcitonin-on-orthodontic-tooth-movement-and-associated-root-resorption-in-rats
#9
Ling Guan, Suai Lin, Weijun Yan, Lei Chen, Xiaofeng Wang
OBJECTIVES: Our main aim was to evaluate the effects of calcitonin (CT) on orthodontic tooth movement (OTM) and orthodontic root resorption in a rat model. MATERIAL AND METHODS: Eighty male Wistar rats were randomly divided into five groups. Rats in the negative control group were not given any appliances or injections. All the remaining rats were used to establish a model of OTM. The positive control group were then injected with normal saline, while rats in the three experimental groups were injected with 0...
August 17, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28811076/submucosal-injection-of-dexamethasone-and-methylprednisolone-for-the-control-of-postoperative-sequelae-after-third-molar-surgery-randomized-controlled-trial
#10
A Chugh, S Singh, Y Mittal, V Chugh
Pain, swelling, and trismus are known sequelae of third molar surgery that can significantly affect the individual's quality of life (QOL). These should be minimized to improve QOL. The purpose of this study was to compare the effects of the preoperative submucosal administration of equivalent doses of two commonly used steroids on these postoperative sequelae. A randomized controlled clinical trial was conducted involving 60 subjects requiring the removal of impacted mandibular third molars. Extraction cases with a similar difficulty index were included...
August 12, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28810918/tranexamic-acid-reduces-hidden-blood-loss-in-the-treatment-of-intertrochanteric-fractures-with-pfna-a-single-center-randomized-controlled-trial
#11
Jinlai Lei, Binfei Zhang, Yuxuan Cong, Yan Zhuang, Xing Wei, Yahui Fu, Wei Wei, Pengfei Wang, Shiming Wen, Hai Huang, Hu Wang, Shuang Han, Shuguang Liu, Kun Zhang
BACKGROUND: Hidden blood loss is a major concern for patients undergoing hip surgery for intertrochanteric fracture. The objective of this study was to investigate whether tranexamic acid (TXA) could reduce postoperative hidden blood loss in patients undergoing hip surgery for intertrochanteric fracture. METHODS: A total of 77 patients with intertrochanteric fracture were enrolled in this randomized controlled study. Patients received either 200 mL (1 g) of TXA (n = 37) or normal-saline (NS) (n = 40) i...
August 15, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28810692/resveratrol-protects-from-lipopolysaccharide-induced-inflammation-in-the-uterus-and-prevents-experimental-preterm-birth
#12
María Victoria Bariani, Fernando Correa, Emma Leishman, Ana Paula Domínguez Rubio, Andreína Arias, Aníbal Stern, Heather B Bradshaw, Ana María Franchi
STUDY QUESTION: Is resveratrol able to prevent the lipopolysaccharide (LPS)-induced preterm labor in 15-day pregnant BALB/c mice? SUMMARY ANSWER: Resveratrol prevented the LPS-induced onset of preterm labor in 64% of the cases and showed anti-inflammatory and tocolytic effects by downregulating COX-2 and iNOS expression and NOS activity, and by changing the uterine prostaglandin and endocannabinoid profiling. WHAT IS KNOWN ALREADY: Genital tract infections by Gram-negative bacteria are a common complication in human pregnancy and have been shown to increase risk of preterm delivery...
August 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28810649/effect-of-dexmedetomidine-combined-with-sufentanil-on-preventing-emergence-agitation-in-children-receiving-sevoflurane-anesthesia-for-cleft-palate-repair-surgery
#13
Ke Luo, Jun-Mei Xu, Lin Cao, Ju Gao
The aim of the present study was to observe whether dexmedetomidine (DEX) combined with sufentanil decreased emergence agitation (EA) in children receiving sevoflurane anesthesia for cleft palate repair surgery. Children undergoing elective cleft palate repair surgery were randomly allocated into the DEX + sufentanil group (group DS; n=50) and the normal saline + fentanyl group (group SF; n=50). Patients in group DS were treated with 0.5 µg/kg DEX prior to induction of anesthesia, whereas patients in group SF received an equal volume of normal saline...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810603/intratracheal-administration-of-isosorbide-dinitrate-improves-pulmonary-artery-pressure-and-ventricular-remodeling-in-a-rat-model-of-heart-failure-following-myocardial-infarction
#14
Xuelian Wang, Qingqing Xu, Tianqi Li, Yaocong Rong, Weilin Hong, Yan Huang, Xingui Guo
Pulmonary hypertension due to left heart disease is associated with poor outcomes. This study investigated the beneficial effects of isosorbide dinitrate (ISDN) inhalation on pulmonary pressure and ventricular remodeling in a rat model of heart failure (HF) following myocardial infarction (MI). To assess the effect of ISDN on pulmonary pressure, 20 male Sprague-Dawley (SD) rats were randomized to four groups: Normal saline (NS) 1 ml/kg, ISDN 1 mg/kg, NS 3 ml/kg or ISDN 3 mg/kg following coronary ligation. Assessments included pulmonary and systemic artery pressure alterations, lung weight/body weight and plasma nitric oxide (NO) concentration...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28808460/the-effect-of-intracanal-medicaments-on-microleakage-of-mineral-trioxide-aggregate-apical-plugs
#15
Mohammadreza Nabavizadeh, Fariborz Moazzami, Mohsen Bahmani, Hossein Mirhadi
INTRODUCTION: The purpose of this in vitro study was to evaluate the effect of calcium hydroxide, double and triple antibiotic paste on the sealing ability of mineral trioxide aggregate (MTA) apical plugs. METHODS AND MATERIALS: A total of 90 extracted teeth with single canals were prepared and randomly divided into four experimental groups (n=20). Intra-canal medicaments were applied for 3 weeks. MTA was placed through the access opening and condensed to the apical area and then fluid filtration technique was utilized to evaluate sealing ability after 1, 7, 14 and 30 days...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28808378/rutamarin-an-active-constituent-from-ruta-angustifolia-pers-induced-apoptotic-cell-death-in-the-ht29-colon-adenocarcinoma-cell-line
#16
Shafinah Ahmad Suhaimi, Sok Lai Hong, Sri Nurestri Abdul Malek
BACKGROUND: Ruta angustifolia Pers. is a perennial herb that is cultivated worldwide, including Southeast Asia, for the treatment of various diseases as traditional medicine. OBJECTIVE: The purpose of the study was to identify an active principle of R. angustifolia and to investigate its effect on the HT29 cell death. MATERIALS AND METHODS: The methanol and fractionated extracts (hexane, chloroform, ethyl acetate, and water) of R. angustifolia Pers...
July 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28808207/moringa-oleifera-based-diet-protects-against-nickel-induced-hepatotoxicity-in-rats
#17
Oluyomi Stephen Adeyemi, Cincin Sokolayemji Aroge, Musbau Adewumi Akanji
Multiple health-promoting effects have been attributed to the consumption of Moringa oleifera leaves, as part of diet without adequate scientific credence. This study evaluated the effect of M. oleifera-based diets on nickel (Ni) - induced hepatotoxicity in rats. Male rats assigned into six groups were given oral administration of 20 mg/kg body weight nickel sulfate in normal saline and either fed normal diet orM. oleifera-based diets for 21 days. All animals were sacrificed under anesthesia 24 hours after the last treatment...
July 13, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28807910/24-hour-pharmacokinetic-relationships-for-vancomycin-and-novel-urinary-biomarkers-of-acute-kidney-injury
#18
J Nicholas O'Donnell, Nathaniel J Rhodes, Thomas P Lodise, Walter C Prozialeck, Cristina M Miglis, Medha Joshi, Natarajan Venkatesan, Gwendolyn Pais, Cameron Cluff, Peter C Lamar, Seema Briyal, John Z Day, Anil Gulati, Marc H Scheetz
Introduction: Vancomycin has been associated with acute kidney injury in preclinical and clinical settings, however the precise exposure profiles associated with vancomycin induced acute kidney injury has not been defined. We sought to determine pharmacokinetic/pharmacodynamics indices associated with the development of acute kidney injury using sensitive urinary biomarkers.Methods: Male Sprague-Dawley rats received clinical grade vancomycin or normal saline as an intraperitoneal injection. Total daily doses between 0 and 400 mg/kg/day were administered as single or 2 divided doses over a 24-hour period...
August 14, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28807720/comparison-of-the-therapeutic-effects-of-sildenafil-citrate-heparin-and-neuropeptides-in-a-rat-model-of-acetic-acid-induced-gastric-ulcer
#19
Mehmet Kalayci, Mehmet Ali Kocdor, Tuncay Kuloglu, İbrahim Sahin, Mehmet Sarac, Aziz Aksoy, Meltem Yardim, Semih Dalkilic, Onur Gursu, Suna Aydin, Ramazan Fazil Akkoc, Meltem Cokugras, Gokhan Artas, İbrahim Hanifi Ozercan, Kader Ugur, Suleyman Aydin
AIMS: The purpose of our investigative work has been to determine whether there can be therapeutic roles in the administration of sildenafil citrate, heparin and several neuropeptides on an animal model where gastric ulcers were induced with acetic acid, and to compare their efficacy. MATERIALS AND METHODS: The animals were divided into 13 groups, with 4 animals in each. Gastric ulcers was induced in the animals of 12 groups with one untreated group being left as the control (Group I - control; given normal saline (NS))...
August 11, 2017: Life Sciences
https://www.readbyqxmd.com/read/28807216/early-resuscitation-with-exendin-4-alleviates-acute-lung-injury-after-hemorrhagic-shock-in-rats
#20
Xiang Song, Gan Chen, Xin Luo, Guoxing You, Yujing Yin, Ying Wang, Lian Zhao, Hong Zhou
BACKGROUND: Oxidative stress induced by hemorrhagic shock (HS) is known to initiate a systemic inflammatory response, which leads to subsequent acute lung injury. This study is aimed to assess the efficacy of exendin-4 (Ex-4) in attenuating lung injury in a rat model of HS and resuscitation (HS/R). METHODS: HS was induced in sodium pentobarbital-anesthetized adult male Wistar rats by withdrawing blood to maintain a mean arterial pressure of 30-35 mm Hg for 50 min...
August 2017: Journal of Surgical Research
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