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https://www.readbyqxmd.com/read/28335015/the-synaptic-function-of-parkin
#1
Jenny Sassone, GiuliaMaia Serratto, Flavia Valtorta, Vincenzo Silani, Maria Passafaro, Andrea Ciammola
Loss of function mutations in the gene PARK2, which encodes the protein parkin, cause autosomal recessive juvenile parkinsonism, a neurodegenerative disease characterized by degeneration of the dopaminergic neurons localized in the substantia nigra pars compacta. No therapy is effective in slowing disease progression mostly because the pathogenesis of the disease is yet to be understood. From accruing evidence suggesting that the protein parkin directly regulates synapses it can be hypothesized that PARK2 gene mutations lead to early synaptic damage that results in dopaminergic neuron loss over time...
February 23, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28334204/transcriptomic-and-histological-responses-of-african-rice-oryza-glaberrima-to-meloidogyne-graminicola-provide-new-insights-into-root-knot-nematode-resistance-in-monocots
#2
Anne-Sophie Petitot, Tina Kyndt, Rana Haidar, Alexis Dereeper, Myriam Collin, Janice de Almeida Engler, Godelieve Gheysen, Diana Fernandez
Background and Aims: The root-knot nematode Meloidogyne graminicola is responsible for production losses in rice ( Oryza sativa ) in Asia and Latin America. The accession TOG5681 of African rice, O. glaberrima , presents improved resistance to several biotic and abiotic factors, including nematodes. The aim of this study was to assess the cytological and molecular mechanisms underlying nematode resistance in this accession. Methods: Penetration and development in M...
February 28, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28334162/biparental-transmission-of-verminephrobacter-symbionts-in-the-earthworm-aporrectodea-tuberculata-lumbricidae
#3
Laura-Carlota Paz, Andreas Schramm, Marie Braad Lund
Most lumbricid earthworms harbor species-specific Verminephrobacter symbionts in their excretory organs (nephridia). These symbionts are vertically transmitted via the cocoon, where they colonize the embryos. Despite cospeciation for >100 million years with their hosts, Verminephrobacter lack genome reduction and AT bias typical of evolutionary old, vertically transmitted symbionts, caused by recurring bottlenecks. We hypothesized that biparental symbiont transmission into the cocoon enabled genetic mixing and relieved the bottleneck, and tested biparental transmission experimentally for V...
February 23, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28333965/worm-infestations-and-development-of-autoimmunity-in-children-the-abis-study
#4
Johnny Ludvigsson, Michael P Jones, Åshild Faresjö
Worm infestations influence the immune system and may therefore decrease the risk for autoimmune diseases. The aim of the study was to determine whether children who have developed autoimmune disease were less likely to have had worm infestations in childhood. The ABIS-study is a prospective population-based cohort study of children born in southeast Sweden 1997/99. 17.055 children participated. As of June 2014 116 individuals had developed Type 1 diabetes, 181 celiac disease, and 53 Juvenile Rheumatoid Arthritis...
2017: PloS One
https://www.readbyqxmd.com/read/28333937/variability-in-age-and-size-at-maturation-reproductive-longevity-and-long-term-growth-dynamics-for-kemp-s-ridley-sea-turtles-in-the-gulf-of-mexico
#5
Larisa Avens, Lisa R Goshe, Lewis Coggins, Donna J Shaver, Ben Higgins, Andre M Landry, Rhonda Bailey
Effective management of protected sea turtle populations requires knowledge not only of mean values for demographic and life-history parameters, but also temporal and spatial trends, variability, and underlying causes. For endangered Kemp's ridley sea turtles (Lepidochelys kempii), the need for baseline information of this type has been emphasized during attempts to understand causes underlying the recent truncation in the recovery trajectory for nesting females. To provide insight into variability in age and size at sexual maturation (ASM and SSM) and long-term growth patterns likely to influence population trends, we conducted skeletochronological analysis of humerus bones from 333 Kemp's ridleys stranded throughout the Gulf of Mexico (GOM) from 1993 to 2010...
2017: PloS One
https://www.readbyqxmd.com/read/28333871/successful-treatment-of-refractory-juvenile-dermatomyositis-with-adalimumab
#6
Chrong-Reen Wang
No abstract text is available yet for this article.
April 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/28333535/family-based-treatments-for-serious-juvenile-offenders-a-multilevel-meta-analysis
#7
Alex R Dopp, Charles M Borduin, Mark H White, Sofie Kuppens
OBJECTIVE: Researchers have identified several family-based treatments that hold considerable promise in reducing serious juvenile offending; however, these treatments remain underutilized by youth service systems. In the present study, we used meta-analysis to summarize the findings of research on family-based treatments for serious juvenile offenders. METHOD: We conducted a multilevel meta-analysis that modeled dependencies between multiple effect sizes from the same study...
April 2017: Journal of Consulting and Clinical Psychology
https://www.readbyqxmd.com/read/28333534/effects-of-multisystemic-therapy-on-caregivers-of-serious-juvenile-offenders-a-20-year-follow-up-to-a-randomized-clinical-trial
#8
Benjamin D Johnides, Charles M Borduin, David V Wagner, Alex R Dopp
OBJECTIVE: Caregivers of serious juvenile offenders often hold favorable attitudes about criminality and frequently have histories of involvement in antisocial behaviors themselves. In the present study, the authors examined the long-term criminal and noncriminal outcomes for caregivers of serious juvenile offenders who had participated two decades earlier in a randomized clinical trial of multisystemic therapy (MST; Borduin et al., 1995). METHOD: Participants were 276 caregivers of serious juvenile offenders who were originally randomized to MST or individual therapy (IT)...
April 2017: Journal of Consulting and Clinical Psychology
https://www.readbyqxmd.com/read/28333139/inhibition-of-autophagy-prevents-irradiation-induced-neural-stem-and-progenitor-cell-death-in-the-juvenile-mouse-brain
#9
Yafeng Wang, Kai Zhou, Tao Li, Yiran Xu, Cuicui Xie, Yanyan Sun, Yaodong Zhang, Juan Rodriguez, Klas Blomgren, Changlian Zhu
Radiotherapy is an effective tool in the treatment of malignant brain tumors. However, damage to brain stem and progenitor cells constitutes a major problem and is associated with long-term side effects. Autophagy has been shown to be involved in cell death, and the purpose of this study was to evaluate the effect of autophagy inhibition on neural stem and progenitor cell death in the juvenile brain. Ten-day-old selective Atg7 knockout (KO) mice and wild-type (WT) littermates were subjected to a single 6Gy dose of whole-brain irradiation...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28331982/autoantibodies-in-children-with-juvenile-dermatomyositis-a-single-centre-experience-from-north-west-india
#10
Altaf Hussain, Amit Rawat, Ankur Kumar Jindal, Anju Gupta, Surjit Singh
The objective of this study is to determine autoantibody profile in children with juvenile dermatomyositis (JDM). Children who were diagnosed with JDM (either recently diagnosed during the study period or follow-up patients) were included in the study. Autoantibodies were detected with commercially available Immunodot kit. Thirty patients were included in the study. Nine out of thirty patients (30%) were positive for one of the 12 autoantibodies tested. Anti-SRP antibody was most common antibody detected in 3 patients followed by anti-MDA-5 antibody in 2 patients; while anti-Jo1 antibody, anti-TIF1-γ antibody, anti-Mi-2 antibody, and anti-PM-Scl antibody were positive in 1 patient each...
March 22, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28331931/cranial-thoracic-vertebral-canal-stenosis-in-three-juvenile-large-breed-brachycephalic-dogs-treated-by-unilateral-hemilaminectomy
#11
Amanda Miller, Andrew Marchevsky
OBJECTIVE: To describe the surgical treatment and outcome for juvenile dogs with cranial thoracic vertebral canal stenosis treated by unilateral hemilaminectomy. STUDY DESIGN: Case series. ANIMALS: Three large-breed brachycephalic dogs of various breeds (Dogue de Bordeaux, Australian Bulldog, Boerboel) with neurological signs consistent with a myelopathy of the third thoracic (T) to third lumbar (L) spinal cord segment. METHODS: Information on clinical presentation, diagnostic imaging, surgical procedures, postoperative complications, recovery and outcome is described...
March 23, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28331810/juvenile-granulosa-cell-tumor-of-the-testicle-report-of-a-neonatal-case-with-positive-alpha-fetoprotein-immunohistochemical-staining
#12
Melissa Dundas, Mark Horowitz, Richard Sidlow
We report on a case of juvenile granulosa cell tumor of the testicle in a neonate, a rare testicular tumor in children. No genital ambiguity, anatomic abnormalities, nor sex chromosome aneuploidy was noted in this patient. In our case, despite positive staining for alpha-fetoprotein which is most consistent with yolk sac tumors, all clinical, gross anatomic, histologic, and other immunohistologic characteristics of the tumor remained consistent with the diagnosis of juvenile granulosa cell tumor. The alpha-fetoprotein positivity of the tumor remains unexplained...
May 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28331581/strong-bottom-up-influences-on-small-mammal-populations-state-space-model-analyses-from-long-term-studies
#13
John R Flowerdew, Tatsuya Amano, William J Sutherland
"Bottom-up" influences, that is, masting, plus population density and climate, commonly influence woodland rodent demography. However, "top-down" influences (predation) also intervene. Here, we assess the impacts of masting, climate, and density on rodent populations placed in the context of what is known about "top-down" influences. To explain between-year variations in bank vole Myodes glareolus and wood mouse Apodemus sylvaticus population demography, we applied a state-space model to 33 years of catch-mark-release live-trapping, winter temperature, and precise mast-collection data...
March 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28331414/taxonomic-revision-and-cladistic-analysis-of-avicularia-lamarck-1818-araneae-theraphosidae-aviculariinae-with-description-of-three-new-aviculariine-genera
#14
Caroline Sayuri Fukushima, Rogério Bertani
The genus Avicularia Lamarck, 1818 is revised and all species are rediagnosed. The type species, described as Aranea avicularia Linnaeus, 1758, is the oldest mygalomorph species described and its taxonomic history is extensive and confusing. Cladistic analyses using both equal and implied weights were carried out with a matrix of 46 taxa from seven theraphosid subfamilies, and 71 morphological and ecological characters. The optimal cladogram found with Piwe and concavity = 6 suggests Avicularia and Aviculariinae are monophyletic...
2017: ZooKeys
https://www.readbyqxmd.com/read/28331226/the-histone-deacetylase-inhibitor-givinostat-itf2357-exhibits-potent-anti-tumor-activity-against-crlf2-rearranged-bcp-all
#15
A M Savino, J Sarno, L Trentin, M Vieri, G Fazio, M Bardini, C Bugarin, G Fossati, K Davis, G Gaipa, S Izraeli, L H Meyer, G P Nolan, A Biondi, G Te Kronnie, C Palmi, G Cazzaniga
Leukemias bearing CRLF2 and JAK2 gene alterations are characterized by aberrant JAK/STAT signaling and poor prognosis. The HDAC inhibitor givinostat/ITF2357 has been shown to exert antineoplastic activity against both systemic juvenile idiopathic arthritis and myeloproliferative neoplasms through inhibition of the JAK/STAT pathway. These findings led us to hypothesize that givinostat might also act against CRLF2-rearranged BCP-ALL, which lack effective therapies. Here, we found that givinostat inhibited proliferation and induced apoptosis of BCP-ALL CRLF2-rearranged cell lines, positive for exon 16 JAK2 mutations...
March 23, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28331204/two-leafy-homologs-ilfy1-and-ilfy2-control-reproductive-and-vegetative-developments-in-isoetes-l
#16
Tao Yang, Ming-Fang Du, You-Hao Guo, Xing Liu
LEAFY (LFY) is a plant-specific transcription factor, which is found in algae and all land plants. LFY homologs exert ancestral roles in regulating cell division and obtain novel functions to control floral identity. Isoetes L. is an ancient genus of heterosporous lycophytes. However, characters about LFY homologs in lycophytes remain poorly investigated. In this study, two LFY homologs, ILFY1 and ILFY2, were cloned from five Isoetes species, including I. hypsophila, I. yunguiensis, I. sinensis, I. orientalis, and I...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28331171/accelerated-ecotoxicity-of-photoreactive-nanoparticles-on-moina-macrocopa
#17
Sun-Hwa Nam, Yu-Jin Shin, Youn-Joo An
Zinc oxide nanoparticles (ZnO NPs) and titanium dioxide nanoparticles (TiO2 NPs) are well known as photoreactive NPs. Various phototoxicity of ZnO NPs and TiO2 NPs on several organisms were reported. There was still necessity to evaluate toxicity of photoreactive ZnO NPs and TiO2 NPs due to species-specific effects under various irradiation conditions. We compared acute toxicity of Moina macrocopa under visible, UVA, and UVB irradiations, according to Organization for Economic Cooperation and Development guidelines for the testing of chemicals (Test No...
March 22, 2017: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/28330976/when-environmental-factors-become-stressors-interactive-effects-of-vermetid-gastropods-and-sedimentation-on-corals
#18
Julie A Zill, Michael A Gil, Craig W Osenberg
Environmental stressors often interact, but most studies of multiple stressors have focused on combinations of abiotic stressors. Here we examined the potential interaction between a biotic stressor, the vermetid snail Ceraesignum maximum, and an abiotic stressor, high sedimentation, on the growth of reef-building corals. In a field experiment, we subjected juvenile massive Porites corals to four treatments: (i) neither stressor, (ii) sedimentation, (iii) vermetids or (iv) both stressors. Unexpectedly, we found no effect of either stressor in isolation, but a significant decrease in coral growth in the presence of both stressors...
March 2017: Biology Letters
https://www.readbyqxmd.com/read/28330969/influence-of-the-coronary-circulation-on-thermal-tolerance-and-cardiac-performance-during-warming-in-rainbow-trout
#19
Andreas Ekström, Michael Axelsson, Albin Gräns, Jeroen Brijs, Erik Sandblom
Thermal tolerance in fish may be related to an oxygen limitation of cardiac function. While the hearts of some fish species receive oxygenated blood via a coronary circulation, the influence of this oxygen supply on thermal tolerance and cardiac performance during warming remain unexplored. Here, we analyzed the effect in vivo of acute warming on coronary blood flow in adult sexually mature rainbow trout (Onchorhynchus mykiss), and the consequences of chronic coronary ligation on cardiac function and thermal tolerance in juvenile trout...
February 22, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28330726/provision-of-physiological-data-and-reference-values-in-awake-and-anaesthetized-female-sheep-aged-6-12-months
#20
Tim Kampmeier, Philip Arnemann, Michael Heßler, Sebastian Rehberg, Andrea Morelli, Martin Westphal, Matthias Lange, Hugo Van Aken, Christian Ertmer
OBJECTIVE: To provide physiological data and reference values in awake and anaesthetized sheep aged 6-12 months. STUDY DESIGN: Descriptive study. ANIMALS: Data from 260 female sheep of the species Ovis orientalis aries aged 6-12 months were extracted from 10 experimental trials. METHODS: Data from pulmonary arterial thermodilution in awake (cohort 1; n = 109) and anaesthetized animals (cohort 2; n = 81), and transpulmonary thermodilution in anaesthetized animals (cohort 3; n = 70) were analysed...
January 11, 2017: Veterinary Anaesthesia and Analgesia
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