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https://www.readbyqxmd.com/read/28211028/short-term-supra-physiological-rhgh-administration-induces-transient-dna-damage-in-peripheral-lymphocytes-of-healthy-women
#1
C Fantini, P Sgrò, M Pittaluga, A de Perini, I Dimauro, A Sartorio, D Caporossi, L Di Luigi
PURPOSE: While a good safety for recombinant human growth hormone (rhGH) therapy at replacement doses is recognized, a possible link between high concentration of the GH-IGF-I axis hormones and side negative effect has been reported. The aim of this pilot study was to assess whether a short-term exposure to supra-physiological doses of rhGH may affect DNA integrity in human lymphocytes (PBL). METHODS: Eighteen healthy Caucasian female (24.2 ± 3.5 years) were randomly included in a Control (n = 9) and rhGH administration group (n = 9, 3-week treatment)...
February 16, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28207078/emerging-infectious-diseases-animals-and-future-epidemics
#2
Herbert L DuPont
Emerging and reemerging infections have become prevalent in the United States since the 1970s, causing illness, death, and fear among the public. The published literature was reviewed to offer a perspective on risk factors for disease acquisition and to allow a prediction of the next microbial assault after Ebola and Zika. Four well-integrated factors likely will contribute simultaneously: animals colonized or infected by pathogens capable of human transmission, microbes recurrently changing their virulence, a growing number of susceptible people, and climatic and environmental factors encouraging disease transmission...
February 1, 2017: Texas Medicine
https://www.readbyqxmd.com/read/28199338/development-and-application-of-an-edna-method-to-detect-the-critically-endangered-trinidad-golden-tree-frog-phytotriades-auratus-in-bromeliad-phytotelmata
#3
Sarah Brozio, Chloe Manson, Eleanor Gourevitch, Thomas J Burns, Mark S Greener, J Roger Downie, Paul A Hoskisson
The use of environmental DNA (eDNA) to monitor rare and elusive species has great potential for conservation biology. Traditional surveying methods can be time-consuming, labour-intensive, subject to error or can be invasive and potentially damaging to habitat. The Trinidad golden treefrog (Phytotriades auratus) is one such species that would benefit from such an approach. This species inhabits the giant bromeliad (Glomeropitcairnia erectiflora) on two peaks on the Caribbean island of Trinidad. Traditional survey methods for this species have required the destruction of the giant bromeliad, which is the only known habitat of this frog...
2017: PloS One
https://www.readbyqxmd.com/read/28195069/salivary-oxidative-status-in-patients-with-oral-lichen-planus
#4
D Darczuk, W Krzysciak, P Vyhouskaya, B Kesek, D Galecka-Wanatowicz, W Lipska, T Kaczmarzyk, M Gluch-Lutwin, B Mordyl, M Chomyszyn-Gajewska
Reactive oxygen species (ROS) are involved in the pathogenesis of many inflammatory diseases, including oral lichen planus. Therefore, determining the salivary markers of oxidative stress is an excellent alternative approach to diagnosing oral cavity diseases. The objective of our study was to provide preliminary validation and determination of the salivary markers of oxidative stress in both patients with reticular and erosive forms of oral lichen planus as well as in healthy individuals without any oral lesions...
December 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28192256/response-of-gut-health-and-microbiota-to-sulfide-exposure-in-pacific-white-shrimp-litopenaeus-vannamei
#5
Yantong Suo, Erchao Li, Tongyu Li, Yongyi Jia, Jian G Qin, Zhimin Gu, Liqiao Chen
Sulfide is a natural and widely distributed toxicant. It can be commonly found on the interface between water and sediment in the aquatic environment. The Pacific white shrimp Litopenaeus vannamei starts life in the benthic zone soon after the mysis stage, an early stage of post larvae. Therefore, L. vannamei is inevitably affected by exposure to sulfide released from pond sediment. This study explored the toxicant effect of different concentrations of sulfide on the intestinal health and microbiota of Pacific white shrimp by monitoring the change of expression of inflammatory, immune related cytokines, and the structure of the intestinal microbiota...
February 10, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28185293/assessing-frost-damages-using-dynamic-models-in-walnut-trees-exposure-rather-than-vulnerability-controls-frost-risks
#6
Guillaume Charrier, Isabelle Chuine, Marc Bonhomme, Thierry Améglio
Frost damages develop when exposure overtakes frost vulnerability. Frost risk assessment therefore needs dynamic simulation of frost hardiness using temperature and photoperiod in interaction with developmental stage. Two models, including or not the effect of photoperiod were calibrated using five years of frost hardiness monitoring (2007-2012), in two locations (low and high elevation) for three walnut genotypes with contrasted phenology and maximum hardiness (Juglans regia cv Franquette, Juglans regia x nigra 'Early' and 'Late')...
February 9, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28180071/grey-matter-alterations-in-migraine-a-systematic-review-and-meta-analysis
#7
Zhihua Jia, Shengyuan Yu
OBJECTIVES: To summarize and meta-analyze studies on changes in grey matter (GM) in patients with migraine. We aimed to determine whether there are concordant structural changes in the foci, whether structural changes are concordant with functional changes, and provide further understanding of the anatomy and biology of migraine. METHODS: We searched PubMed and Embase for relevant articles published between January 1985 and November 2015, and examined the references within relevant primary articles...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28178330/comparative-study-of-extrapolative-factors-linked-with-oxidative-injury-and-anti-inflammatory-status-in-chronic-kidney-disease-patients-experiencing-cardiovascular-distress
#8
Mahmood Rasool, Muhammad Abdul Basit Ashraf, Arif Malik, Sulayman Waquar, Shahida Aziz Khan, Mahmood Husain Qazi, Waseem Ahmad, Muhammad Asif, Sami Ullah Khan, Ahmad Zaheer, Muther Mansoor Qaisrani, Abdul Rehman Khan, Aamir Iqbal, Amir Raza, Saima Iram, Kashif Kamran, Asim Iqbal, Mohammad Zahid Mustafa, Hani Choudhry, Mazin A Zamzami, Wesam H Abdulaal, Mohammad Sarwar Jamal
BACKGROUND: Chronic kidney disease (CKD) is a group of heterogeneous abnormalities affecting the function and structure of the kidney and mostly further proceeds to cardiovascular damage prior to end stage renal disease (ESRD). The oxidative insult and inflammatory mediators have some undefined role in CKD and cardiovascular complications. It is therefore, aimed at to pin point the predictive factors in the development of cardiovascular disorder in patients with chronic kidney disease...
2017: PloS One
https://www.readbyqxmd.com/read/28165428/proteomic-analysis-of-various-rat-ocular-tissues-after-ischemia-reperfusion-injury-and-possible-relevance-to-acute-glaucoma
#9
Hsin-Yi Chen, Hsiu-Chuan Chou, Shing-Jyh Chang, En-Chi Liao, Yi-Ting Tsai, Yu-Shan Wei, Ji-Min Li, Li-Hsun Lin, Meng-Wei Lin, Ying-Jen Chen, Yu-Sheng Chen, Chih-Chun Lin, Yi-Shiuan Wang, Mei-Lan Ko, Hong-Lin Chan
Glaucoma is a group of eye diseases that can cause vision loss and optical nerve damage. To investigate the protein expression alterations in various intraocular tissues (i.e., the cornea, conjunctiva, uvea, retina, and sclera) during ischemia-reperfusion (IR) injury, this study performed a proteomic analysis to qualitatively investigate such alterations resulting from acute glaucoma. The IR injury model combined with the proteomic analysis approach of two-dimensional difference gel electrophoresis (2D-DIGE) and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) was used to monitor the protein expression alterations in two groups of specimens (an IR injury group and a control group)...
February 5, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28161100/the-future-of-omics-in-hypertension
#10
REVIEW
Gemma Currie, Christian Delles
Despite decades of research and clinical practice, the pathogenesis of hypertension remains incompletely understood, and blood pressure is often suboptimally controlled. "Omics" technologies allow the description of a large number of molecular features and have the potential to identify new factors that contribute to blood pressure regulation and how they interact. In this review, we focus on the potential of genomics, transcriptomics, proteomics, and metabolomics and explore their roles in unraveling the pathophysiology and diagnosis of hypertension, the prediction of organ damage and treatment response, and monitoring treatment effect...
December 7, 2016: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28158282/the-effects-of-run-of-river-hydroelectric-power-schemes-on-invertebrate-community-composition-in-temperate-streams-and-rivers
#11
Gary S Bilotta, Niall G Burnside, Matthew D Turley, Jeremy C Gray, Harriet G Orr
Run-of-river (ROR) hydroelectric power (HEP) schemes are often presumed to be less ecologically damaging than large-scale storage HEP schemes. However, there is currently limited scientific evidence on their ecological impact. The aim of this article is to investigate the effects of ROR HEP schemes on communities of invertebrates in temperate streams and rivers, using a multi-site Before-After, Control-Impact (BACI) study design. The study makes use of routine environmental surveillance data collected as part of long-term national and international monitoring programmes at 22 systematically-selected ROR HEP schemes and 22 systematically-selected paired control sites...
2017: PloS One
https://www.readbyqxmd.com/read/28149770/comparison-of-lens-oxidative-damage-induced-by-vitrectomy-and-or-hyperoxia-in-rabbits
#12
Hong Yan, Dan Wang, Tian-Bing Ding, Hai-Yan Zhou, Wei-Jia Yan, Xin-Chuan Wang
AIM: To compare of lens oxidative damage induced by vitrectomy and/or hyperoxia in rabbit. METHODS: Sixteen New Zealand rabbits (2.4-2.5 kg) were randomly divided into two groups (Group A, n=12; Group B, n=4). In Group A, the right eyes were treated with vitrectomy and systemic hyperoxia (oxygen concentration: 80%-85%, 1 ATA, 4h/d) (Group A-right), and the left eyes were treated with hyperoxia without vitrectomy surgery (Group A-left). Four rabbits in group B (eight eyes) were untreated as the controls...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28126307/molecular-contrast-enhanced-ultrasound-imaging-of-radiation-induced-p-selectin-expression-in-healthy-mice-colon
#13
Ahmed El Kaffas, Kevin Smith, Pooja Pradhan, Steven Machtaler, Huaijun Wang, Rie von Eyben, Jürgen K Willmann, Dimitre Hristov
PURPOSE: To evaluate the feasibility of using molecular contrast-enhanced ultrasound (mCEUS) to image radiation (XRT)-induced expression of cell adhesion molecules that mediate inflammatory response to XRT in healthy mouse colon tissue. METHODS AND MATERIALS: The colons of male BALB/c mice (aged 6-8 weeks, n=9) were irradiated with 14 Gy using a Kimtron IC-225 x-ray irradiator operating at 225 kV/13.0 mA at a dose rate of 0.985 Gy/min. The head and thorax regions were shielded during irradiation...
March 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28125883/detection-of-pyrrolizidine-alkaloid-dna-adducts-in-livers-of-cattle-poisoned-with-heliotropium-europaeum
#14
Peter P Fu, Qingsu Xia, Xiaobo He, Shimon Barel, Nir Edery, Frederick A Beland, Jakob A Shimshoni
Pyrrolizidine alkaloids are among the most common poisonous plants affecting livestock, wildlife, and humans. Exposure of humans and livestock to toxic pyrrolizidine alkaloids through the intake of contaminated food and feed may result in poisoning, leading to devastating epidemics. During February 2014, 73 mixed breed female beef cows from the Galilee region of Israel were accidently fed pyrrolizidine alkaloid contaminated hay for 42 days, resulting in the sudden death of 24 cows over a period of 63 days. The remaining cows were slaughtered 2...
February 10, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28124638/clinical-assessment-of-urinary-tract-damage-during-sustained-release-estrogen-supplementation-in-mice
#15
Dalis E Collins Kathleen R Mulka Mark J Hoenerhoff Russell S Taichman And Jason S Villano
Estrogen supplementation is a key component of numerous mouse research models but can adversely affect the urinary system.The goal of this study was to develop a clinical scoring system and identify biomarkers of occult urinary tract lesions prior to the development of systemic illness in mice. Ovariectomized or sham-surgery SCID mice were implanted subcutaneously with a placebo pellet or one containing sustained-release estradiol (0.18 mg 60-d release 17β-estradiol). Mice were assessed twice weekly for 4 to 6 wk by using a clinical scoring system that included body condition, general activity, posture, hair coat, hydration, abdominal distension, urine staining of coat and skin, and ability to urinate...
January 25, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28111831/qtc-interval-in-patients-with-multiple-sclerosis-an-inference-from-the-insula-of-reil
#16
G Turri, M Calabrese, E Pancheri, S Monaco, A Gajofatto, V Marafioti
BACKGROUND AND PURPOSE: The aim of this study was to investigate the correlation between the duration of the QTc interval and the brain lesion load at the level of the structures involved in superior autonomic control (insula, cingulate cortex and amygdala-hippocampus) in multiple sclerosis (MS) patients. METHODS: Thirty-one consecutive patients with relapsing-remitting MS were recruited. The QT interval was measured manually in all 12 leads by a single blinded observer, with the longest QT value adjusted for heart rate by using the Bazett's formula...
January 23, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28110698/heart-rate-variability-regression-and-risk-of-sudden-unexpected-death-in-epilepsy
#17
Alessio Galli, Federico Lombardi
The exact mechanisms of sudden unexpected death in epilepsy remain elusive, despite there is consensus that SUDEP is associated with severe derangements in the autonomic control to vital functions as breathing and heart rate regulation. Heart rate variability (HRV) has been advocated as biomarker of autonomic control to the heart. Cardiac dysautonomia has been found in diseases where other branches of the autonomous nervous system are damaged, as Parkinson disease and multiple system atrophy. In this perspective, an impaired HRV not only is a risk factor for sudden cardiac death mediated by arrhythmias, but also a potential biomarker for monitoring a progressive decline of the autonomous nervous system...
February 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28107776/activity-based-probes-for-the-multicatalytic-proteasome
#18
REVIEW
David S Hewings, John A Flygare, Ingrid E Wertz, Matthew Bogyo
Proteasomes are multisubunit protease complexes responsible for degrading most intracellular proteins. In addition to removing damaged proteins, they regulate many important cellular processes through the controlled degradation of transcription factors, cell cycle regulators and enzymes. Eukaryotic proteasomes have three catalytic subunits, β1, β2 and β5, that each have different substrate specificities. Additionally, although we know that diverse cell types express proteasome variants with distinct activity and specificity profiles, the functions of these different pools of proteasomes are not fully understood...
January 20, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28100321/-application-of-esmolol-in-severe-hand-foot-and-mouth-disease
#19
Lei Zhu, Bo-Xiang Qi, Dai-Hua Fang, Gong-Jian Qi, Kun Gao, Bao-Li Hu
OBJECTIVE: To study the clinical effect and mechanism of action of esmolol in the treatment of severe hand, foot, and mouth disease (HFMD). METHODS: A prospective randomized controlled trial was performed. A total of 102 children with severe HFMD were enrolled in the study and were randomly divided into conventional treatment and esmolol treatment groups (n=51 each). The children in the conventional treatment group were given conventional treatment according to the guidelines for the diagnosis and treatment of HFMD...
January 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28078425/odorant-receptors-and-antennal-lobe-morphology-offer-a-new-approach-to-understanding-olfaction-in-the-asian-longhorned-beetle
#20
Robert F Mitchell, Loyal P Hall, Peter F Reagel, Duane D McKenna, Thomas C Baker, John G Hildebrand
The Asian longhorned beetle Anoplophora glabripennis (Motchulsky) is an exotic forest pest that has repeatedly invaded North America and Europe from Asia, and has the potential to kill millions of trees and cause billions of dollars in damage. Traps baited with an attractive mixture of volatile organic compounds from hosts have been of limited success in monitoring invasion sites. We propose that lures might be improved through studying the olfactory system of adult beetles, especially the gene family of odorant receptors (ORs) and the structure of the antennal lobes of the brain...
January 11, 2017: Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
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