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https://www.readbyqxmd.com/read/29223105/towards-a-rapid-assessment-protocol-for-identifying-pit-lakes-worthy-of-restoration
#1
W J de Lange, B Genthe, L Hill, P J Oberholster
Before the introduction of reclamation legislation in South Africa, final cut lakes in mining areas were left without any restoration while the final excavation was not back filled. Characteristics of these lacustrine water bodies vary considerably, but they are often linear in shape, large (1-30 ha), deep (2-30 m) and have poorly developed littoral zones. With water tables often near the surface; a variety of vascular hydrophytes can colonize these bodies, thus establishing emerging wetland type ecosystems...
December 6, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29223021/pre-treatment-of-soybean-plants-with-calcium-stimulates-ros-responses-and-mitigates-infection-by-sclerotinia-sclerotiorum
#2
Arbia Arfaoui, Abdelbasset El Hadrami, Fouad Daayf
Considering the high incidence of white mold caused by Sclerotinia sclerotiorum in a variety of field crops and vegetables, different control strategies are needed to keep the disease under economical threshold. This study assessed the effect of foliar application of a calcium formulation on disease symptoms, oxalic acid production, and on the oxidative stress metabolism in soybean plants inoculated with each of two isolates of the pathogen that have contrasting aggressiveness (HA, highly-aggressive versus WA, weakly-aggressive)...
November 26, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29222966/optimizing-functional-outcomes-in-mandibular-condyle-reconstruction-with-the-free-fibula-flap-using-computer-aided-design-and-manufacturing-technology
#3
Z-Hye Lee, Tomer Avraham, Casian Monaco, Ashish A Patel, David L Hirsch, Jamie P Levine
PURPOSE: Mandibular defects involving the condyle represent a complex reconstructive challenge for restoring proper function of the temporomandibular joint (TMJ) because it requires precise bone graft alignment for full restoration of joint function. The use of computer-aided design and manufacturing (CAD/CAM) technology can aid in accurate reconstruction of mandibular condyle defects with a vascularized free fibula flap without the need for additional adjuncts. The purpose of this study was to analyze clinical and functional outcomes after reconstruction of mandibular condyle defects using only a free fibula graft with the help of virtual surgery techniques...
November 15, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29222956/demographic-drivers-of-a-refugee-species-large-scale-experiments-guide-strategies-for-reintroductions-of-hirola
#4
Abdullahi H Ali, Matthew J Kauffman, Rajan Amin, Amos Kibara, Juliet King, David Mallon, Charles Musyoki, Jacob R Goheen
Effective reintroduction strategies require accurate estimates of vital rates and the factors that influence them. The hirola (Beatragus hunteri) is the rarest antelope on Earth, with a global population size of <500 individuals restricted to the Kenya-Somali border. We estimated vital rates of hirola populations exposed to varying levels of predation and rangeland quality from 2012 to 2015, and then built population matrices to estimate the finite rate of population change (λ) and demographic sensitivities...
December 9, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/29222849/bone-marrow-transplantation-improves-motor-activity-in-a-mouse-model-of-ataxia
#5
David Díaz, Marina Piquer-Gil, Javier Sánchez Recio, María Magdalena Martínez-Losa, José Ramón Alonso, Eduardo Weruaga, Manuel Álvarez-Dolado
Ataxias are locomotor disorders that can have an origin both neural and muscular, although both impairments are related. Unfortunately, ataxia has no cure and the current therapies are aimed at motor re-education or muscular reinforcement. Nevertheless, cell therapy is becoming a promising approach to deal with incurable neural diseases, including neuro-muscular ataxias. Here we have used a model of ataxia, the PCD mutant mouse, to study the effect of healthy (wild-type) bone marrow transplantation on the restoration of defective mobility...
December 8, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29222799/middle-cerebral-artery-occlusion-by-an-intraluminal-suture-method
#6
Rosalia Crupi, Rosanna Di Paola, Emanuela Esposito, Salvatore Cuzzocrea
Stroke represents the most common fatal neurological disease especially in highly developed countries. Even today, treatment options are very limited. The development of new therapeutic approaches replies, to a great extent, on experimental rodent models of focal cerebral ischemia. Since ~80% of ischemic strokes occur in the area of middle cerebral artery (MCA), a number of these stroke models are based on this artery. The intraluminal monofilament model of MCA occlusion involves the insertion of a surgical filament inside the external carotid artery and its extension into the internal carotid artery until the tip occludes the source of the MCA-thus arresting blood flow with resultant infarction in the MCA area...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29222719/longevity-of-visual-improvements-following-transcorneal-electrical-stimulation-and-efficacy-of-retreatment-in-three-individuals-with-retinitis-pigmentosa
#7
Ava K Bittner, Kenneth Seger
PURPOSE: A small-scale randomized controlled trial conducted by our group found that four of seven retinitis pigmentosa (RP) subjects who received six weekly Transcorneal Electrical Stimulation (TES) sessions developed significant improvements in visual acuity (VA), quick contrast sensitivity function (qCSF), and/or Goldmann visual fields (GVF). We longitudinally monitored three of these participants for declining visual function due to natural RP progression to determine the duration of their responses and administered retreatments...
December 8, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29222696/thrombomodulin-favors-leukocyte-microvesicle-fibrinolytic-activity-reduces-netosis-and-prevents-septic-shock-induced-coagulopathy-in-rats
#8
Julie Helms, Raphaël Clere-Jehl, Elsa Bianchini, Pierrick Le Borgne, Mélanie Burban, Fatiha Zobairi, Jean-Luc Diehl, Lelia Grunebaum, Florence Toti, Ferhat Meziani, Delphine Borgel
BACKGROUND: Septic shock-induced disseminated intravascular coagulation is responsible for increased occurrence of multiple organ dysfunction and mortality. Immunothrombosis-induced coagulopathy may contribute to hypercoagulability. We aimed at determining whether recombinant human thrombomodulin (rhTM) could control exaggerated immunothrombosis by studying procoagulant responses, fibrinolysis activity borne by microvesicles (MVs) and NETosis in septic shock. METHODS: In a septic shock model after a cecal ligation and puncture-induced peritonitis (H0), rats were treated with rhTM or a placebo at H18, resuscitated and monitored during 4 h...
December 8, 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/29222649/effect-of-oral-zinc-supplementation-on-the-thiol-oxido-reductive-index-and-thiol-related-enzymes-in-seminal-plasma-and-spermatozoa-of-iraqi-asthenospermic-patients
#9
Abdul Razzaq S Alsalman, Lamia A Almashhedy, Mahmoud Hussein Hadwan
A thiol group plays an essential role in sperm metabolism and the antioxidative defense state. Zinc is the second most abundant element in the human body, following iron. The present study was conducted to study the effect of zinc supplementation on the characteristics of semen along with thiol and thiol-related enzymes in semen of asthenospermic patients. Semen samples were obtained from 60 fertile and 60 asthenospermic men, from couples who had consulted the infertility clinic of Babil Hospital (Hillah city, Iraq)...
December 8, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/29222481/hypoxia-inducible-factor-prolyl-4-hydroxylase-1-is-a-convergent-point-in-the-reciprocal-negative-regulation-of-nf-%C3%AE%C2%BAb-and-p53-signaling-pathways
#10
Karim Ullah, Ann-Helen Rosendahl, Valerio Izzi, Ulrich Bergmann, Taina Pihlajaniemi, Joni M Mäki, Johanna Myllyharju
Hypoxia-inducible factor 1α (HIF1α) induces the expression of several hundred genes in hypoxia aiming at restoration of oxygen homeostasis. HIF prolyl-4-hydroxylases (HIF-P4Hs) regulate the stability of HIF1α in an oxygen-dependent manner. Hypoxia is a common feature in inflammation and cancer and the HIF pathway is closely linked with the inflammatory NF-κB and tumor suppressor p53 pathways. Here we show that genetic inactivation or chemical inhibition of HIF-P4H-1 leads to downregulation of proinflammatory genes, while proapoptotic genes are upregulated...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29222448/effect-of-qianghuo-erhuang-decoction-on-t-regulatory-and-t-helper-17-cells-in-treatment-of-adjuvant-induced-arthritis-in-rats
#11
Can Qian, Mei Kuang, Yong Wang
QianghuoErhuang Decoction (QED) is an effective recipe in treating rheumatoid arthritis. The present study aimed to explore the effects of QED on Treg and Th17 in adjuvant arthritis (AA) model. The study included 6 group rats: normal control group, AA group, AA + methotrexate (MTX) group, AA + high, moderate, and low dose QED groups. The arthritis score was significantly decreased in the MTX and high-dose QED groups compared with the AA group on days 24 and 28 (P < 0.01), respectively. The synovial tissue inflammation was attenuated by histological observation, and the proliferation of splenocytes was significantly inhibited in MTX and high-dose QED groups (P < 0...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29222408/brain-insulin-resistance-impairs-hippocampal-synaptic-plasticity-and-memory-by-increasing-glua1-palmitoylation-through-foxo3a
#12
Matteo Spinelli, Salvatore Fusco, Marco Mainardi, Federico Scala, Francesca Natale, Rosita Lapenta, Andrea Mattera, Marco Rinaudo, Domenica Donatella Li Puma, Cristian Ripoli, Alfonso Grassi, Marcello D'Ascenzo, Claudio Grassi
High-fat diet (HFD) and metabolic diseases cause detrimental effects on hippocampal synaptic plasticity, learning, and memory through molecular mechanisms still poorly understood. Here, we demonstrate that HFD increases palmitic acid deposition in the hippocampus and induces hippocampal insulin resistance leading to FoxO3a-mediated overexpression of the palmitoyltransferase zDHHC3. The excess of palmitic acid along with higher zDHHC3 levels causes hyper-palmitoylation of AMPA glutamate receptor subunit GluA1, hindering its activity-dependent trafficking to the plasma membrane...
December 8, 2017: Nature Communications
https://www.readbyqxmd.com/read/29222329/glutaminolysis-is-required-for-tgf-%C3%AE-1-induced-myofibroblast-differentiation-and-activation
#13
Karen Bernard, Naomi J Logsdon, Gloria A Benavides, Yan Sanders, Jianhua Zhang, Victor M Darley-Usmar, Victor J Thannickal
Myofibroblasts participate in physiological wound healing and pathological fibrosis.  Myofibroblast differentiation is characterized by the expression of alpha-smooth muscle actin (α-SMA) and extracellular matrix (ECM) proteins, and is dependent on metabolic reprogramming.  In this study, we explored the role of glutaminolysis and metabolites of the tricarboxylic acid cycle (TCA) in supporting myofibroblast differentiation.  Glutaminolysis converts glutamine (Gln) into alpha-ketoglutarate (α-KG), a critical intermediate in the TCA cycle...
December 8, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29222206/catastrophic-catheter-induced-coronary-artery-vasospasm-successfully-rescued-using-intravascular-ultrasound-imaging-guidance
#14
Masaki Kodaira, Ryota Tabei, Toshiki Kuno, Yohei Numasawa
A 46-year-old man underwent coronary angiography for stable angina. He developed inferior ST-segment myocardial infarction during the angiography. Intravascular ultrasound (IVUS) findings suggested coronary vasospasm. Intracoronary administration of isosorbide dinitrate restored the coronary flow. This case illustrates the essential role IVUS imaging played in establishing the diagnosis of catheter-induced coronary vasospasm.
December 7, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29222192/suppressor-of-gamma-response-1-links-dna-damage-response-to-organ-regeneration
#15
Ross Alastair Johnson, Phillip Conklin, Michelle Tjahjadi, Victor Missirian, Ted Toal, Siobhan M Brady, Anne B Britt
In Arabidopsis, DNA damage-induced programmed cell death is limited to the meristematic stem cell niche and its early descendants. The significance of this cell-type specific programmed cell death is unclear. Here we demonstrate in roots that it is the programmed destruction of the mitotically-compromised stem cell niche that triggers its regeneration, enabling growth recovery. In contrast to wild-type plants, sog1 plants, which are defective in damage-induced programmed cell death, maintain the cell identities and stereotypical structure of the stem cell niche after irradiation, but these cells fail to undergo cell division, terminating root growth...
December 8, 2017: Plant Physiology
https://www.readbyqxmd.com/read/29222186/new-splicing-variants-of-mitochondrial-rho-gtpase-1-miro1-transport-peroxisomes
#16
Kanji Okumoto, Tatsuaki Ono, Ryusuke Toyama, Ayako Shimomura, Aiko Nagata, Yukio Fujiki
Microtubule-dependent long-distance movement of peroxisomes occurs in mammalian cells. However, its molecular mechanisms remain undefined. In this study, we identified three distinct splicing variants of human mitochondrial Rho GTPase-1 (Miro1), each containing amino acid sequence insertions 1 (named Miro1-var2), 2 (Miro1-var3), and both 1 and 2 (Miro1-var4), respectively, at upstream of the transmembrane domain. Miro1-var4 and Miro1-var2 are localized to peroxisomes in a manner dependent on the insertion 1 that is recognized by the cytosolic receptor Pex19p...
December 8, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/29222166/effect-of-il-7-therapy-on-phospho-ribosomal-protein-s6-and-traf1-expression-in-hiv-specific-cd8-t-cells-in-patients-receiving-antiretroviral-therapy
#17
Chao Wang, Maria I Edilova, Lisa E Wagar, Shariq Mujib, Meromit Singer, Nicole F Bernard, Thérèse Croughs, Michael M Lederman, Irini Sereti, Margaret A Fischl, Elisabeth Kremmer, Mario Ostrowski, Jean-Pierre Routy, Tania H Watts
IL-7 therapy has been evaluated in patients who do not regain normal CD4 T cell counts after virologically successful antiretroviral therapy. IL-7 increases total circulating CD4 and CD8 T cell counts; however, its effect on HIV-specific CD8 T cells has not been fully examined. TRAF1, a prosurvival signaling adaptor required for 4-1BB-mediated costimulation, is lost from chronically stimulated virus-specific CD8 T cells with progression of HIV infection in humans and during chronic lymphocytic choriomeningitis infection in mice...
December 8, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29222165/innate-sex-bias-of-staphylococcus-aureus-skin-infection-is-driven-by-%C3%AE-hemolysin
#18
Moriah J Castleman, Srijana Pokhrel, Kathleen D Triplett, Donna F Kusewitt, Bradley O Elmore, Jason A Joyner, Jon K Femling, Geetanjali Sharma, Helen J Hathaway, Eric R Prossnitz, Pamela R Hall
Numerous studies have reported sex bias in infectious diseases, with bias direction dependent on pathogen and site of infection. Staphylococcus aureus is the most common cause of skin and soft tissue infections (SSTIs), yet sex bias in susceptibility to S. aureus SSTI has not been described. A search of electronic health records revealed an odds ratio of 2.4 for S. aureus SSTI in males versus females. To investigate the physiological basis of this bias, we compared outcomes between male and female mice in a model of S...
December 8, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29221790/fam3-gene-family-a-promising-therapeutical-target-for-nafld-and-type-2-diabetes
#19
REVIEW
Zhang Xiaoyan, Weili Yang, Junpei Wang, Yuhong Meng, Youfei Guan, Jichun Yang
Non-alcoholic fatty liver disease (NAFLD) and diabetes are severe public health issues worldwide. The Family with sequence similarity 3 (FAM3) gene family consists of four members designated as FAM3A, FAM3B, FAM3C and FAM3D, respectively. Recently, there had been increasing evidence that FAM3A, FAM3B and FAM3C are important regulators of glucose and lipid metabolism. FAM3A expression is reduced in the livers of diabetic rodents and NAFLD patients. Hepatic FAM3A restoration activates ATP-P2 receptor-Akt and AMPK pathways to attenuate steatosis and hyperglycemia in obese diabetic mice...
December 5, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29221726/mirna-495-suppresses-proliferation-and-migration-of-colorectal-cancer-cells-by-targeting-fam83d
#20
Likun Yan, Jianfeng Yao, Jian Qiu
microRNAs (miRNAs) have been reported to play crucial roles in malignant tumor progression, including cell development, proliferation, and progression. Increasing evidence suggests that miR-495 functions as either an oncogene or tumor suppressor in several tumor types. However, its biological role in the development of colorectal cancer (CRC) still remains unclear. In this study, we found that miR-495 expression level was remarkably down-regulated in CRC tissues samples and cell lines when compared to adjacent normal tissues and cell line by using qRT-PCR detection...
December 5, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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