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https://www.readbyqxmd.com/read/29846487/technology-for-performing-ocular-self-examination-comparison-between-printed-and-virtual-booklets
#1
Jennara Candido Nascimento, Maria Alzete Lima, Lívia Moreira Barros, Nelson Miguel Galindo Neto, Lorita Marlena Freitag Pagliuca, Joselany Áfio Caetano
OBJECTIVE: Comparing the results of the ocular self-examination performed with the aid of printed and virtual versions of an educational booklet. METHOD: A quasi-experimental study carried out in a state (public) school of a capital in northeast Brazil, with 100 students equally divided into control and intervention groups according to age, gender, schooling and economic status. Pearson's Chi-square test and Fisher's exact test were applied with a significance level of 5%...
2018: Revista da Escola de Enfermagem da U S P
https://www.readbyqxmd.com/read/29780259/delivery-of-bevacizumab-by-intracranial-injection-assessment-in-glioma-model
#2
Yu-Xiao Liu, Wen-Jia Liu, Hui-Ru Zhang, Zhi-Wen Zhang
Background: Many reports have indicated that the intravenous administration of bevacizumab produces a number of systemic side effects. Therefore, we investigated the therapeutic effects of intratumoral bevacizumab administration using a glioma animal model. Methods: The glioma cell lines U251 and U87 that carried luciferase were implanted into the brains of mice to develop glioma models. Glioma-bearing mice were treated with bevacizumab intravenously or intratumorally by Alzet micro-osmotic pumps, and the survival time of mice was monitored...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29697188/biodegradable-silk-catheters-for-the-delivery-of-therapeutics-across-anatomical-repair-sites
#3
Joseph E Brown, Lorenzo Tozzi, Benjamin Schilling, Arta Kelmendi-Doko, April B Truong, Maria J Rodriguez, Eun Seok Gil, Robert Sucsy, Jolene E Valentin, Brian J Philips, Kacey G Marra, J Peter Rubin, David L Kaplan
Biodegradable silk catheters for the delivery of therapeutics are designed with a focus on creating porous gradients that can direct the release of molecules away from the implantation site. Though suitable for a range of applications, these catheters are designed for drug delivery to transplanted adipose tissue in patients having undergone a fat grafting procedure. A common complication for fat grafts is the rapid reabsorption of large volume adipose transplants. In order to prolong volume retention, biodegradable catheters can be embedded into transplanted tissue to deliver nutrients, growth factors or therapeutics to improve adipocyte viability, proliferation, and ultimately extend volume retention...
April 26, 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29550928/effect-of-vasopressin-induced-chronic-hyponatremia-on-the-regulation-of-the-middle-cerebral-artery-of-the-rat
#4
Marta Aleksandrowicz, Ewa Kozniewska
Vasopressin (arginine vasopressin, AVP) plays a crucial role in maintaining body fluid homeostasis. Excessive release of vasopressin can lead to hyponatremia. Changes in cerebral circulation during vasopressin-induced chronic hyponatremia are not elucidated. The present study has been designed to investigate the effect of chronic vasopressin-induced hyponatremia on the regulation of the tone of the middle cerebral artery (MCA) of the rat. Chronic hyponatremia was induced in vivo with the help of vasopressin, released continuously from subcutaneously implanted ALZET mini-osmotic pumps, and a liquid diet...
March 17, 2018: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/29338380/transplantation-of-human-neural-progenitor-cells-reveals-structural-and-functional-improvements-in-the-spastic-han-wistar-rat-model-of-ataxia
#5
Ruslan L Nuryyev, Toni L Uhlendorf, Wesley Tierney, Suren Zatikyan, Oleg Kopyov, Alex Kopyov, Jessica Ochoa, William Van Trigt, Cindy S Malone, Randy W Cohen
The use of regenerative medicine to treat nervous system disorders like ataxia has been proposed to either replace or support degenerating neurons. In this study, we assessed the ability of human neural progenitor cells (hNPCs) to repair and restore the function of dying neurons within the spastic Han-Wistar rat (sHW), a model of ataxia. The sHW rat suffers from neurodegeneration of specific neurons, including cerebellar Purkinje cells and hippocampal CA3 pyramidal cells leading to the observed symptoms of forelimb tremor, hind-leg rigidity, gait abnormality, motor incoordination, and a shortened life span...
November 2017: Cell Transplantation
https://www.readbyqxmd.com/read/29151273/after-treatment-with-methylene-blue-is-effective-against-delayed-encephalopathy-after-acute-carbon-monoxide-poisoning
#6
Ningjun Zhao, Pengchong Liang, Xiaoying Zhuo, Chenglei Su, Xuemei Zong, Bingnan Guo, Dong Han, Xianliang Yan, Shuqun Hu, Quanguang Zhang, Xu Tie
Delayed encephalopathy after acute carbon monoxide (CO) poisoning (DEACMP) is the most severe and clinically intractable complication that occurs following acute CO poisoning. Unfortunately, the mechanism of DEACMP is still vague. Growing evidence indicates that delayed cerebral damage after CO poisoning is related to oxidative stress, abnormal neuro-inflammation, apoptosis and immune-mediated injury. Our recent report indicated that methylene blue (MB) may be a promising therapeutic agent in the prevention of neuronal cell death and cognitive deficits after transient global cerebral ischaemia (GCI)...
May 2018: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29069269/comparing-interrater-reliability-between-eye-examination-and-eye-self-examination-1
#7
Maria Alzete de Lima, Lorita Marlena Freitag Pagliuca, Jennara Cândido do Nascimento, Joselany Áfio Caetano
OBJECTIVE: to compare Interrater reliability concerning two eye assessment methods. METHOD: quasi-experimental study conducted with 324 college students including eye self-examination and eye assessment performed by the researchers in a public university. Kappa coefficient was used to verify agreement. RESULTS: reliability coefficients between Interraters ranged from 0.85 to 0.95, with statistical significance at 0.05. The exams to check for near acuity and peripheral vision presented a reasonable kappa >0...
October 19, 2017: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/29054133/effects-of-intrathecal-injection-of-the-conditioned-medium-from-bone-marrow-stromal-cells-on-spinal-cord-injury-in-rats
#8
Kenji Kanekiyo, Tamami Wakabayashi, Norihiko Nakano, Yoshihiro Yamada, Masahiro Tamachi, Yoshihisa Suzuki, Masatoshi Fukushima, Fukuki Saito, Seiya Abe, Chihiro Tsukagoshi, Chimi Miyamoto, Chizuka Ide
Bone marrow stromal cells (BMSCs) have been studied for the treatment of spinal cord injury (SCI). In previous studies, we showed that the transplantation of BMSCs, even though they disappeared from the host spinal cord within 1-3 weeks after transplantation, improved locomotor behaviors and promoted axonal regeneration. This result led to the hypothesis that BMSCs might release some neurotrophic factors effective for the treatment of SCI. The present study examined this by injecting the conditioned medium (CM) of BMSCs to treat SCI in rats...
February 1, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28956010/cinnamic-acid-shortens-the-period-of-the-circadian-clock-in-mice
#9
Katsutaka Oishi, Saori Yamamoto, Hideaki Oike, Naoki Ohkura, Masahiko Taniguchi
Cinnamic acid (CA) derivatives have recently received focus due to their anticancer, antioxidant, and antidiabetic properties. The present study aimed to determine the effects of cinnamic acid on the circadian clock, which is a cell-autonomous endogenous system that generates circadian rhythms that govern the behavior and physiology of most organisms. Cinnamic acid significantly shortened the circadian period of PER2::LUC expression in neuronal cells that differentiated from neuronal progenitor cells derived from PER2::LUC mouse embryos...
March 2017: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/28546155/long-term-nicotine-exposure-dampens-lps-induced-nerve-mediated-airway-hyperreactivity-in-murine-airways
#10
Yuan Xu, Lars-Olaf Cardell
Nicotine is a major component of cigarette smoke. It causes addiction and is used clinically to aid smoke cessation. The aim of the present study is to investigate the effect of nicotine on lipopolysaccharide (LPS)-induced airway hyperreactivity (AHR) and to explore the potential involvement of neuronal mechanisms behind nicotine's effects in murine models in vivo and in vitro. BALB/c mice were exposed to nicotine in vivo via subcutaneous Alzet osmotic minipumps containing nicotine tartate salt solution (24 mg·kg(-1)·day(-1)) for 28 days...
September 1, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28523230/targeting-resolution-of-neuroinflammation-after-ischemic-stroke-with-a-lipoxin-a4-analog-protective-mechanisms-and-long-term-effects-on-neurological-recovery
#11
Kimberly E Hawkins, Kelly M DeMars, Jon C Alexander, Lauren G de Leon, Sean C Pacheco, Christina Graves, Changjun Yang, Austin O McCrea, Jan C Frankowski, Timothy J Garrett, Marcelo Febo, Eduardo Candelario-Jalil
BACKGROUND: Resolution of inflammation is an emerging new strategy to reduce damage following ischemic stroke. Lipoxin A4 (LXA 4) is an anti-inflammatory, pro-resolution lipid mediator that reduces neuroinflammation in stroke. Since LXA 4 is rapidly inactivated, potent analogs have been synthesized, including BML-111. We hypothesized that post-ischemic, intravenous treatment with BML-111 for 1 week would provide neuroprotection and reduce neurobehavioral deficits at 4 weeks after ischemic stroke in rats...
May 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28409734/intratumoral-delivery-of-bortezomib-impact-on-survival-in-an-intracranial-glioma-tumor-model
#12
Weijun Wang, Hee-Yeon Cho, Rachel Rosenstein-Sisson, Nagore I Marín Ramos, Ryan Price, Kyle Hurth, Axel H Schönthal, Florence M Hofman, Thomas C Chen
OBJECTIVE Glioblastoma (GBM) is the most prevalent and the most aggressive of primary brain tumors. There is currently no effective treatment for this tumor. The proteasome inhibitor bortezomib is effective for a variety of tumors, but not for GBM. The authors' goal was to demonstrate that bortezomib can be effective in the orthotopic GBM murine model if the appropriate method of drug delivery is used. In this study the Alzet mini-osmotic pump was used to bring the drug directly to the tumor in the brain, circumventing the blood-brain barrier; thus making bortezomib an effective treatment for GBM...
March 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28326744/nutritional-parameters-and-carbohydrate-and-fat-metabolism-after-prolonged-salsolinol-administration-in-rats-fed-normal-or-high-fat-diets
#13
Magdalena Kurnik-Lucka, Krzysztof Gil, Andrzej Bugajski, Agata Furgała, Piotr Thor
OBJECTIVES: Previous studies have reported that exogenous salsolinol might contribute to myenteric cell death and altered gastrointestinal motility. Because the entire gut mucosal, entero-endocrine and motor functions are integrated by the enteric nervous system, the aim of the present study was to investigate if prolonged intraperitoneal salsolinol administration alters basic metabolism and nutritional parameters in adult Wistar rats fed normal or high-fat diets. METHODS: Male Wistar rats were subjected to continuous intraperitoneal low dosing of salsolinol with ALZET osmotic mini-pumps for 2 or 4 weeks and fed either a normal or high-fat diet...
December 2016: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28139517/role-of-jagged1-hey1-signal-in-angiotensin-ii-induced-impairment-of-myocardial-angiogenesis
#14
Ai-Li Guan, Tao He, Yi-Bing Shao, Yi-Fan Chi, Hong-Yan Dai, Yan Wang, Li Xu, Xuan Yang, Hua-Min Ding, Shang-Lang Cai
BACKGROUND: Angiotensin II (Ang II) is a major contributor to the development of heart failure. However, the molecular and cellular mechanisms that underlie this process remain elusive. Inadequate angiogenesis in the myocardium leads to a transition from cardiac hypertrophy to dysfunction, and our previous study showed that Ang II significantly impaired the angiogenesis response. The current study was designed to examine the role of Jagged1-Notch signaling in the effect of Ang II during impaired angiogenesis and cardiac hypertrophy...
February 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28013000/galanin-contributes-to-monoaminergic-dysfunction-and-to-dependent-neurobehavioral-comorbidities-of-epilepsy
#15
Jesus-Servando Medel-Matus, Don Shin, Raman Sankar, Andrey Mazarati
Status epilepticus (SE) in rats, along with chronic epilepsy, leads to the development of behavioral impairments resembling depressive disorder and/or attention deficit/hyperactivity disorder (ADHD), thus reflecting respective comorbidities in epilepsy patients. Suppressed neurotransmitter tone in the raphe nucleus (RN)-prefrontal cortex (PFC) serotonergic pathway and in the locus coeruleus (LC)-PFC noradrenergic pathway underlies depressive- and impulsive-like behavioral deficits respectively. We examined possible mechanisms leading to the monoamine dysfunction in brainstem efferents, namely modulatory effects of the neuropeptide galanin on serotonin (5-HT) and norepinephrine (NE) signaling...
March 2017: Experimental Neurology
https://www.readbyqxmd.com/read/27993561/loss-of-smooth-muscle-cell-disintegrin-and-metalloproteinase-17-transiently-suppresses-angiotensin-ii-induced-hypertension-and-end-organ-damage
#16
Mengcheng Shen, Jude Morton, Sandra T Davidge, Zamaneh Kassiri
Hypertension is associated with hypertrophy and hyperplasia of smooth muscle cells (SMCs). Disintegrin and metalloproteinase 17 (ADAM17) is a membrane-bound enzyme reported to mediate SMC hypertrophy through activation of epidermal growth factor receptor (EGFR). We investigated the role of ADAM17 in Ang II-induced hypertension and end-organ damage. VSMC was isolated from mice with intact ADAM17 expression (Adam17f/f ) or lacking ADAM17 in the SMC (Adam17f/f /CreSm22 ). Human VSMCs were isolated from the aorta of donors, and ADAM17 deletion was achieved by siRNA transfection...
February 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/27986121/intracellular-progesterone-receptor-mediates-the-increase-in-glioblastoma-growth-induced-by-progesterone-in-the-rat-brain
#17
Liliana Germán-Castelán, Joaquín Manjarrez-Marmolejo, Aliesha González-Arenas, Ignacio Camacho-Arroyo
BACKGROUND AND AIMS: Progesterone (P) is a steroid hormone involved in the development of several types of cancer including astrocytomas, the most common and malignant brain tumors. We undertook this study to investigate the effects of P on the growth and infiltration of a tumor caused by the xenotransplant of U87 cells derived from a human astrocytoma grade IV (glioblastoma) in the cerebral cortex of male rats and the participation of intracellular progesterone receptor (PR) on these effects...
August 2016: Archives of Medical Research
https://www.readbyqxmd.com/read/27847197/synchrotron-radiation-micro-ct-as-a-novel-tool-to-evaluate-the-effect-of-agomir-210-in-a-rat-spinal-cord-injury-model
#18
Yong Cao, Tian-Ding Wu, Hao Wu, Ye Lang, Dong-Zhe Li, Shuang-Fei Ni, Hong-Bin Lu, Jian-Zhong Hu
MicroRNA-210 (miR-210) was initially reported to be associated with hypoxia and plays a vital role in modulating angiogenesis. However, the potential effect and underlying mechanisms of miR-210 activity in rat spinal cord injury (SCI) have not yet been fully illuminated. In the present study, differential microRNA expression after SCI was determined by Microarray analysis. To explore the effect of miR-210 after SCI, we intrathecally injected agomir-210 with Alzet Osmotic Pumps to up-regulated the endogenous miR-210 expression...
January 15, 2017: Brain Research
https://www.readbyqxmd.com/read/27513841/the-effect-of-peripheral-chronic-salsolinol-administration-on-fat-pad-adipocytes-morphological-parameters
#19
Veronika Aleksandrovych, Magdalena Kurnik, Magdalena Białas, Andrzej Bugajski, Piotr Thor, Krzysztof Gil
Salsolinol (1-methyl-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline) is thought to regulate dopaminergic neurons and to act as a mediator in the neuroendocrine system. We have previously reported that exogenous salsolinol evokes enteric neuronal cell death, leading to the impairment of myenteric neurons density and abnormal intestinal transit in rats. We also observed significant reduction of body weight, related to the disrupted gastrointestinal homeostasis. e aim of current study was to evaluate the influence of prolonged salsolinol administration body weight, food intake, adipose tissue accumulation and fad pad adipocyte morphological parameters assessed by image analysis...
2016: Folia Medica Cracoviensia
https://www.readbyqxmd.com/read/27508651/-op-3b-02-ageing-and-lack-of-estrogens-activates-cyclooxygenases-pathway-increasing-superoxide-anion-production-in-response-to-thromboxane-a2
#20
S Novella, X Vidal-Gómez, A Mompeón, D Pérez-Cremades, G Segarra, P Medina, C Hermenegildo
OBJECTIVE: The role of ageing in the development of vascular disease is currently associated with a rise in oxidative stress. Thromboxane A2 (TXA2) is an inflammatory and oxidant endogenous vasoconstrictor which action increases with ageing and lack of estrogens, both conditions found in menopause. Our aim was to determine superoxide anion (O2-) levels in response to TXA2 in aortic vascular tissue from senescent and ovariectomized mice and the role of cyclooxygenase as source of O2-. DESIGN AND METHOD: Senescence accelerated mice (SAM) were used in this study...
September 2016: Journal of Hypertension
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