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https://www.readbyqxmd.com/read/28449351/long-term-plasticity-of-corticostriatal-synapses-is-modulated-by-pathway-specific-co-release-of-opioids-through-kappa-opioid-receptors
#1
Sarah L Hawes, Armando G Salinas, David M Lovinger, Kim T Blackwell
Synaptic plasticity in striatum adjusts behaviour adaptively during skill learning, or maladaptively in the case of addiction. Just as dopamine plays a critical role in synaptic plasticity underlying normal skill learning and addiction, endogenous and exogenous opiates also modulate learning and addiction-related striatal plasticity. Though the role of opioid receptors in long-term depression in striatum has been characterized, their effect on long-term potentiation (LTP) remains unknown. In particular, direct pathway (Dopamine D1 Receptor containing; D1R) - spiny projection neurons (SPNs) co-release the opioid neuropeptide dynorphin, which acts at presynaptic kappa opioid receptors (KORs) on dopaminergic afferents and can negatively regulate dopamine release...
April 27, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28449343/cost-effectiveness-of-the-highly-effective-direct-acting-antivirals-in-the-treatment-of-chronic-hepatitis-c-in-hong-kong
#2
Angeline Oi-Shan Lo, Henry Lik-Yuen Chan, Vincent Wai-Sun Wong, Grace Lai-Hung Wong
BACKGROUND AND AIM: In Asia-Pacific where cost is a major concern, peginterferon plus ribavirin (PR) often remain as the standard of care in chronic hepatitis C (CHC) treatment, while the direct-acting antivirals (DAAs) are commonly recommended as retreatment. Newer DAAs can achieve a sustained virological response (SVR) of nearly 100% with pan-genotypic coverage, that is "Highly Effective DAAs." We aimed to investigate the most desirable cost range for the Highly Effective DAAs using Hong Kong as an example...
May 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28449306/malignant-ovarian-germ-cell-tumors-in-pediatric-patients-the-aieop-associazione-italiana-ematologia-oncologia-pediatrica-study
#3
M Terenziani, G Bisogno, R Boldrini, G Cecchetto, M Conte, L Boschetti, M D De Pasquale, D Biasoni, A Inserra, F Siracusa, M E Basso, F De Leonardis, D Di Pinto, F Barretta, F Spreafico, P D'Angelo
OBJECTIVE: Malignant ovarian germ cell tumors (MOGCT) carry an excellent prognosis, and the treatment aims to achieve results with the least possible treatment-related morbidity. The aim of this study was to assess the outcomes of pediatric patients with MOGCT. METHODS: Patients were treated according to their stage: surgery and surveillance for stage I; a modified bleomycin-etoposide-cisplatin (BEP) regimen for stages II (three cycles), III, and IV (three cycles) with surgery on residual disease...
April 27, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28449065/a-homozygous-missense-mutation-in-eral1-encoding-a-mitochondrial-rrna-chaperone-causes-perrault-syndrome
#4
Iliana A Chatzispyrou, Marielle Alders, Sergio Guerrero-Castillo, Ruben Zapata Perez, Martin A Haagmans, Laurent Mouchiroud, Janet Koster, Rob Ofman, Frank Baas, Hans R Waterham, Johannes N Spelbrink, Johan Auwerx, Marcel M Mannens, Riekelt H Houtkooper, Astrid S Plomp
Perrault syndrome (PS) is a rare recessive disorder characterized by ovarian dysgenesis and sensorineural deafness. It is clinically and genetically heterogeneous, and previously mutations have been described in different genes, mostly related to mitochondrial proteostasis. We diagnosed three unrelated females with PS and set out to identify the underlying genetic cause using exome sequencing. We excluded mutations in the known PS genes, but identified a single homozygous mutation in the ERAL1 gene (c.707A>T; p...
April 25, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28449046/prone-positioning-as-a-bridge-to-recovery-from-refractory-hypoxaemia-following-lung-transplantation%C3%A2
#5
Jordi Riera, Carolina Maldonado, Cristopher Mazo, María Martínez, Jaume Baldirà, Leonel Lagunes, Salvador Augustin, Antonio Roman, Maria Due, Jordi Rello, Deborah J Levine
OBJECTIVES: Refractory hypoxaemia is the leading cause of mortality in the postoperative period after lung transplantation. The role of prone positioning as a rescue therapy in this setting has not been assessed. We evaluated its effects in lung transplant recipients presenting refractory hypoxaemia following the surgery. METHODS: Prospectively collected data from 131 consecutive adult patients undergoing lung transplantation between January 2013 and December 2014 were evaluated...
April 25, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28448979/combination-of-correctors-rescues-cftr-transmembrane-domain-mutants-by-mitigating-their-interactions-with-proteostasis
#6
Miquéias Lopes-Pacheco, Clément Boinot, Inna Sabirzhanova, Daniele Rapino, Liudmila Cebotaru
BACKGROUND/AIMS: Premature degradation of mutated cystic fibrosis transmembrane conductance regulator (CFTR) protein causes cystic fibrosis (CF), the commonest Mendelian disease in Caucasians. Despite recent advances in precision medicines for CF patients, many CFTR mutants have not been characterized and the effects of these new therapeutic approaches are still unclear for those mutants. METHODS: Cells transfected or stably expressing four CFTR transmembrane-domain mutants (G85E, E92K, L1077P, and M1101K) were used to: 1) characterize the mutants according to their protein expression, thermal sensitivity, and degradation pathways; 2) evaluate the effects of correctors in rescuing them; and 3) explore the effects of correctors on CFTR interactions with proteostasis components...
April 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28448862/the-first-case-report-of-failed-single-anastomosis-duodeno-ileal-bypass-converted-to-one-anastomosis-gastric-bypass-mini-gastric-bypass
#7
Sonja Chiappetta, Christine Stier, Oliver Scheffel, Sophia Theodoridou, Rudolf Weiner
INTRODUCTION: The established single-anastomosis-duodeno-ileal bypass with sleeve gastrectomy (SADI-S) is based on a sleeve gastrectomy (SG) as the restrictive part of the procedure. Due to preserved pylorus, SG has the disadvantage of a high-pressure system with de novo or worsening of existing gastroesophageal reflux disease (GERD). CASE PRESENTATION: A female patient presented herself due to protracted GERD and weight regain after multiple bariatric surgeries...
April 18, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28448565/characteristics-of-human-sloth-bear-melursus-ursinus-encounters-and-the-resulting-human-casualties-in-the-kanha-pench-corridor-madhya-pradesh-india
#8
Aniruddha H Dhamorikar, Prakash Mehta, Harendra Bargali, Kedar Gore
Sloth bears (Melursus ursinus) caused the highest number of human deaths between 2001 and 2015 and ranked second compared to other wild animals in causing human casualties in the Kanha-Pench corridor area. We studied the patterns of sloth bear attacks in the region to understand the reasons for conflict. We interviewed 166 victims of sloth bear attacks which occurred between 2004 and 2016 and found that most attacks occurred in forests (81%), with the greatest number of those (42%) occurring during the collection of Non-Timber Forest Produce (NTFP), 15% during the collection of fuelwood and 13% during grazing of livestock...
2017: PloS One
https://www.readbyqxmd.com/read/28448322/dexmedetomidine-as-a-rescue-therapy-for-emergence-delirium-in-adults-a-case-series
#9
Matthew D Read, Christopher V Maani, Scott Blackwell
Emergence delirium (ED) in adult patients encountered in the postanesthesia care unit (PACU) is not well studied; nor are ED treatment strategies. Similar to delirium in the intensive care unit, ED in the PACU can result in serious complications. We describe 3 cases of ED in the PACU in patients with a history of posttraumatic stress disorder who were successfully treated with dexmedetomidine. Although likely utilized more frequently in recent years, the use of dexmedetomidine in the PACU for treatment of ED is not established in the literature...
April 26, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28447293/shielding-of-the-geomagnetic-field-reduces-hydrogen-peroxide-production-in-human-neuroblastoma-cell-and-inhibits-the-activity-of-cuzn-superoxide-dismutase
#10
Hai-Tao Zhang, Zi-Jian Zhang, Wei-Chuan Mo, Ping-Dong Hu, Hai-Min Ding, Ying Liu, Qian Hua, Rong-Qiao He
Accumulative evidence has shown the adverse effects of a geomagnetic field shielded condition, so called a hypomagnetic field (HMF), on the metabolic processes and oxidative stress in animals and cells. However, the underlying mechanism remains unclear. In this study, we evaluate the role of HMF on the regulation of cellular reactive oxygen species (ROS) in human neuroblastoma SH-SY5Y cells. We found that HMF exposure led to ROS decrease, and that restoring the decrease by additional H2O2 rescued the HMF-enhanced cell proliferation...
April 26, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28447221/deleterious-abca7-mutations-and-transcript-rescue-mechanisms-in-early-onset-alzheimer-s-disease
#11
Arne De Roeck, Tobi Van den Bossche, Julie van der Zee, Jan Verheijen, Wouter De Coster, Jasper Van Dongen, Lubina Dillen, Yalda Baradaran-Heravi, Bavo Heeman, Raquel Sanchez-Valle, Albert Lladó, Benedetta Nacmias, Sandro Sorbi, Ellen Gelpi, Oriol Grau-Rivera, Estrella Gómez-Tortosa, Pau Pastor, Sara Ortega-Cubero, Maria A Pastor, Caroline Graff, Håkan Thonberg, Luisa Benussi, Roberta Ghidoni, Giuliano Binetti, Alexandre de Mendonça, Madalena Martins, Barbara Borroni, Alessandro Padovani, Maria Rosário Almeida, Isabel Santana, Janine Diehl-Schmid, Panagiotis Alexopoulos, Jordi Clarimon, Alberto Lleó, Juan Fortea, Magda Tsolaki, Maria Koutroumani, Radoslav Matěj, Zdenek Rohan, Peter De Deyn, Sebastiaan Engelborghs, Patrick Cras, Christine Van Broeckhoven, Kristel Sleegers
Premature termination codon (PTC) mutations in the ATP-Binding Cassette, Sub-Family A, Member 7 gene (ABCA7) have recently been identified as intermediate-to-high penetrant risk factor for late-onset Alzheimer's disease (LOAD). High variability, however, is observed in downstream ABCA7 mRNA and protein expression, disease penetrance, and onset age, indicative of unknown modifying factors. Here, we investigated the prevalence and disease penetrance of ABCA7 PTC mutations in a large early onset AD (EOAD)-control cohort, and examined the effect on transcript level with comprehensive third-generation long-read sequencing...
April 27, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28447192/rescue-of-a-wild-type-rabies-virus-from-cloned-cdna-and-assessment-of-the-proliferative-capacity-of-recombinant-viruses
#12
Qin Tian, Yifei Wang, Qiong Zhang, Jun Luo, Mingzhu Mei, Yongwen Luo, Xiaofeng Guo
Reverse genetic systems (RGS) have been widely used for fixed rabies virus (RABV) strains. However, RGS, for wild-type (wt) strains, have been seldom reported despite the value of this approach in defining the biological characteristics of these strains. In this work, we developed a wt RGS using a swine-origin RABV strain (GD-SH-01) for the first time. In order to have a better understanding of the contribution and function of individual gene on viral proliferation for wt RABV isolates, we constructed a full-length cDNA clone of GD-SH-01 and exchanged the single genes encoding RABV protein of a highly attenuated RABV strain HEP-Flury with those of the virulent strain...
April 26, 2017: Virus Genes
https://www.readbyqxmd.com/read/28447104/bmp-type-ii-receptor-as-a-therapeutic-target-in-pulmonary-arterial-hypertension
#13
REVIEW
Mar Orriols, Maria Catalina Gomez-Puerto, Peter Ten Dijke
Pulmonary arterial hypertension (PAH) is a chronic disease characterized by a progressive elevation in mean pulmonary arterial pressure. This occurs due to abnormal remodeling of small peripheral lung vasculature resulting in progressive occlusion of the artery lumen that eventually causes right heart failure and death. The most common cause of PAH is inactivating mutations in the gene encoding a bone morphogenetic protein type II receptor (BMPRII). Current therapeutic options for PAH are limited and focused mainly on reversal of pulmonary vasoconstriction and proliferation of vascular cells...
April 26, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28446718/baicalein-inhibits-pancreatic-cancer-cell-proliferation-and-invasion-via-suppression-of-nedd9-expression-and-its-downstream-akt-and-erk-signaling-pathways
#14
Rong-Tao Zhou, Mei He, Ze Yu, Yang Liang, Yuzhe Nie, Sheng Tai, Chun-Bo Teng
Baicalein, a flavone ingredient of Scutellaria baicalensis Georgi, is a promising anti-cancer agent. However, its potential anti-pancreatic cancer effects and the underlying mechanisms are still unclear. In this study, we showed that Baicalein not only induced apoptosis, but also suppressed proliferation, migration and invasion of two pancreatic cancer cell lines BxPC-3 and PANC-1 in a dose- and time-dependent manner. Notably, Baicalein exhibited low toxicity to normal human liver or kidney cells. We further discovered that Baicalein suppressed BxPC-3 and PANC-1 cell proliferation and invasion through targeting the expression of NEDD9, a Cas scaffolding protein, to decrease Akt and ERK activities...
April 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28446677/variable-inhibition-of-zika-virus-replication-by-different-wolbachia-strains-in-mosquito-cell-cultures
#15
Michaela J Schultz, Sharon Isern, Scott F Michael, Ronald B Corley, John Connor, Horacio M Frydman
Mosquito-borne arboviruses are a major source of human disease. One strategy to reduce arbovirus disease is to reduce the mosquito's ability to transmit virus. Mosquito infection with bacterial endosymbiont, Wolbachia pipientis wMel, is a novel strategy to reduce Aedes mosquito competency for flavivirus infection. However, experiments investigating cyclic environmental temperatures have shown a reduction in maternal transmission of wMel potentially weakening the integration of this strain into a mosquito population relative to other Wolbachia strains...
April 26, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28445961/azilsartan-ameliorates-apoptosis-of-dopaminergic%C3%A2-neurons-and-rescues-characteristic-parkinsonian-behaviors-in-a-rat-model-of-parkinson-s-disease
#16
Qing Gao, Zhou Ou, Teng Jiang, You-Yong Tian, Jun-Shan Zhou, Liang Wu, Jian-Quan Shi, Ying-Dong Zhang
Loss of dopaminergic neurons within the substantia nigra (SN) is a pathological hallmark of Parkinson's disease (PD), which leads to the onset of motor symptoms. Previously, our in vitro studies revealed that Angiotensin II (Ang II) induced apoptosis of dopaminergic neurons through its type 1 receptor (AT1R), but these findings needed to be confirmed via animal experiments. Here, using a rotenone-induced rat model of PD, we observed an overactivation of Ang II/AT1R axis in the SN, since Ang II level and AT1R expression were markedly increased...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445956/rhbdd1-upregulates-egfr-via-the-ap-1-pathway-in-colorectal-cancer
#17
Fei Miao, Mengmeng Zhang, Yuechao Zhao, Xiaolu Li, Rongyan Yao, Fan Wu, Rong Huang, Kai Li, Shiying Miao, Changwu Ma, Hongge Ju, Wei Song, Linfang Wang
Our previous study showed that RHBDD1 can activate the EGFR signaling pathway to promote colorectal cancer growth. In the present study, EGFR was decreased when RHBDD1 was knocked down or inactivated. Further analysis found that c-Jun and EGFR protein expression was decreased in RHBDD1 knockdown and inactivated cells. c-Jun overexpression in RHBDD1-inactivated cells rescued EGFR expression in a dose-dependent manner. RHBDD1 overexpression in RHBDD1-inactivated cells restored EGFR expression, but this effect was counteracted by c-Jun knockdown...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445952/socs3-inhibits-the-pathological-effects-of-il-22-in-non-melanoma-skin-tumor-derived-keratinocytes
#18
Stefania Madonna, Claudia Scarponi, Martina Morelli, Rosanna Sestito, Pasqualina Liana Scognamiglio, Daniela Marasco, Cristina Albanesi
Basal cell carcinomas (BCC) and squamous-cell carcinomas (SCC) are common malignancies in humans, caused by neoplastic transformation of keratinocytes of the basal or suprabasal layers of epidermis, respectively. Tumor-infiltrating lymphocytes (TILs) are frequently found in BCC and SCC, and functionally promote epithelial carcinogenesis. TILs secreting IL-22, in particular, participate to BCC and SCC growth by inducing keratinocyte proliferation and migration, as well as the expression of inflammatory, anti-apoptotic and pro-angiogenic genes...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445733/nf-%C3%AE%C2%BAb-immunity-in-the-brain-determines-fly-lifespan-in-healthy-aging-and-age-related-neurodegeneration
#19
Ilias Kounatidis, Stanislava Chtarbanova, Yang Cao, Margaret Hayne, Dhruv Jayanth, Barry Ganetzky, Petros Ligoxygakis
During aging, innate immunity progresses to a chronically active state. However, what distinguishes those that "age well" from those developing age-related neurological conditions is unclear. We used Drosophila to explore the cost of immunity in the aging brain. We show that mutations in intracellular negative regulators of the IMD/NF-κB pathway predisposed flies to toxic levels of antimicrobial peptides, resulting in early locomotor defects, extensive neurodegeneration, and reduced lifespan. These phenotypes were rescued when immunity was suppressed in glia...
April 25, 2017: Cell Reports
https://www.readbyqxmd.com/read/28445730/ripk3-mediates-necroptosis-during-embryonic-development-and-postnatal-inflammation-in-fadd-deficient-mice
#20
Qun Zhao, XianJun Yu, HaiWei Zhang, YongBo Liu, XiXi Zhang, XiaoXia Wu, Qun Xie, Ming Li, Hao Ying, Haibing Zhang
RIPK3 mediates cell death and regulates inflammatory responses. Although genetic studies have suggested that RIPK3-MLKL-mediated necroptosis leads to embryonic lethality in Fadd or Caspase-8-deficient mice, the exact mechanisms are not fully understood. Here, we generated Ripk3 mutant mice by altering the RIPK3 kinase domain (Ripk3(Δ/Δ) mice), thus abolishing its kinase activity. Ripk3(Δ/Δ) cells were resistant to necroptosis stimulation in vitro, and Ripk3(Δ/Δ) mice were protected from necroptotic diseases...
April 25, 2017: Cell Reports
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