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https://www.readbyqxmd.com/read/29028815/striatal-astrocytes-engulf-dopaminergic-debris-in-parkinson-s-disease-a-study-in-an-animal-model
#1
Ingrid Morales, Alberto Sanchez, Clara Rodriguez-Sabate, Manuel Rodriguez
The role of astrocytes in Parkinson's disease is still not well understood. This work studied the astrocytic response to the dopaminergic denervation. Rats were injected in the lateral ventricles with 6-hydroxydopamine (25μg), inducing a dopaminergic denervation of the striatum not accompanied by non-selective tissue damage. The dopaminergic debris were found within spheroids (free-spheroids) which retained some proteins of dopaminergic neurons (e.g., tyrosine hydroxylase, the dopamine transporter protein, and APP) but not others (e...
2017: PloS One
https://www.readbyqxmd.com/read/29027803/origin-of-efficient-inverted-nonfullerene-organic-solar-cells-enhancement-of-charge-extraction-and-suppression-of-bimolecular-recombination-enabled-by-augmented-internal-electric-field
#2
Yiwen Wang, Bo Wu, Zhenghui Wu, Zhaojue Lan, Yongfang Li, Maojie Zhang, Furong Zhu
We report our effort to unravel the origin of efficient operation of nonfullerene organic solar cells (OSCs), based on a poly[4,8-bis(5-(2-ethylhexyl) thiophen-2-yl)benzo[1,2-b;4,5-b']dithiophene-2,6-diyl-alt-(4-(2-ethylhexyl)-3-fluorothieno[3,4-b]thiophene-)-2-carboxylate-2-6-diyl)](PTB7-Th):3,9-bis(2-methylene-(3-(1,1-dicyanomethylene)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2',3'-d']-s-indaceno [1,2-b:5,6-b']dithiophene (ITIC) blend system. The effects of buildup of space charges, charge extraction, and bimolecular recombination processes on the performance and the stability of PTB7-Th:ITIC-based regular and reverse configuration OSCs are analyzed...
October 13, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/29026706/development-of-novel-drug-eluting-stents-for-acute-myocardial-infarction
#3
REVIEW
Doo Sun Sim, Myung Ho Jeong
Delayed arterial healing at culprit sites after drug-eluting stent (DES) placement for acute myocardial infarction (AMI) is associated with increased risk of late stent thrombosis. The Korea Acute Myocardial Infarction Registry was established in commemoration of the 50(th) anniversary of Korea Circulation Society. Between November 2005 and December 2016, more than 62,000 patients were registered from 50 primary percutaneous coronary intervention (PCI) centers in Korea. DES in AMI may be safe and effective, however, there is concern about increased stent thrombosis after DES implantation in AMI patients, requiring longer-term dual anti-platelet therapy to reduce the risk of late stent thrombosis...
September 2017: Chonnam Medical Journal
https://www.readbyqxmd.com/read/29026165/appropriate-surgical-modalities-for-stages-t2a-and-t2b-in-the-eighth-tnm-classification-of-lung-cancer
#4
Fenglong Bie, Xiao Qu, Xudong Yang, Zhaofei Pang, Yufan Yang, Shaorui Liu, Wei Dong, Jiajun Du
Patients with tumors of 3 to 5 cm were divided into stages T2a (3 to 4 cm) and T2b (4 to 5 cm) based on the 8(th) tumor-node-metastasis staging system for lung cancer. The objective of our study was to explore appropriate surgical modalities for the new stages, T2a and T2b. We selected 6,996 node-negative non-small-cell lung cancer patients with tumor sizes of 3 to 5 cm, diagnosed between 2009 and 2013, from the Surveillance, Epidemiology, and End Results (SEER) program. The Pearson [Formula: see text]...
October 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29026141/combined-skin-and-muscle-vaccination-differentially-impact-the-quality-of-effector-t-cell-functions-the-cuthivac-001-randomized-trial
#5
G Haidari, A Cope, A Miller, S Venables, C Yan, H Ridgers, K Reijonen, D Hannaman, A Spentzou, P Hayes, G Bouliotis, A Vogt, S Joseph, B Combadiere, S McCormack, R J Shattock
Targeting of different tissues via transcutaneous (TC), intradermal (ID) and intramuscular (IM) injection has the potential to tailor the immune response to DNA vaccination. In this Phase I randomised controlled clinical trial in HIV-1 negative volunteers we investigate whether the site and mode of DNA vaccination influences the quality of the cellular immune responses. We adopted a strategy of concurrent immunization combining IM injection with either ID or TC administration. As a third arm we assessed the response to IM injection administered with electroporation (EP)...
October 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29026003/neutralization-of-either-il-17a-or-il-17f-is-sufficient-to-inhibit-house-dust-mite-induced-allergic-asthma-in-mice
#6
Pauline Chenuet, Louis Fauconnier, Fahima Madouri, Tiffany Marchiol, Nathalie Rouxel, Aurélie Ledru, Pascal Mauny, Rachel Lory, Catherine Uttenhove, Jacques van Snick, Yoichiro Iwakura, Franco di Padova, Valérie Quesniaux, Dieudonnée Togbe, Bernhard Ryffel
T helper (Th)17 immune response participates in allergic lung inflammation and asthma is reduced in the absence of interleukin (IL)-17 in mice. Since IL-17A and IL-17F are induced and bind the shared receptor IL-17RA, we asked whether both IL-17A and IL-17F contribute to house dust mite (HDM) induced asthma. We report that allergic lung inflammation is attenuated in absence of either IL-17A or IL-17F with reduced airway hyperreactivity, eosinophilic inflammation, goblet cell hyperplasia, cytokine and chemokine production as found in absence of IL-17RA...
October 15, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29023076/flavonoid-production-growth-and-differentiation-of-stelechocarpus-burahol-bl-hook-f-and-th-cell-suspension-culture
#7
Noor Aini Habibah, Sukarti Moeljopawiro, Kumala Dewi, Ari Indrianto
BACKGROUND AND OBJECTIVE: Stelechocarpus burahol is a plant containing flavonoid compounds that have the potential for use as an antihyperuricemic for gout medication. This study was performed to assess flavonoid production, growth and cell differentiation of S. burahol in cell suspension culture. METHODOLOGY: Mesocarp was planted in Murashige and Skoog (MS) medium supplemented with 7.5 mg L-1 picloram for the induction of callus. Non-embryonic callus obtained was used in the formation of cell suspension cultures...
2017: Pakistan Journal of Biological Sciences: PJBS
https://www.readbyqxmd.com/read/29017854/pegylated-trail-ameliorates-experimental-inflammatory-arthritis-by-regulation-of-th17-cells-and-regulatory-t-cells
#8
Jong-Sung Park, Yumin Oh, Ogyi Park, Catherine A Foss, Sung Mook Lim, Dong-Gyu Jo, Dong Hee Na, Martin G Pomper, Kang Choon Lee, Seulki Lee
TNF-related apoptosis-inducing ligand (TRAIL) is a death ligand that can induce apoptosis in cells expressing its cognate death receptors (DRs). Previously, we demonstrated the therapeutic potential of recombinant human TRAIL in experimental rheumatoid arthritis (RA) models. However, the mechanisms of how DR-mediated apoptosis elicits these actions is not known. Here, we show that systemically administering a potent, long-acting PEGylated TRAIL (TRAILPEG) is profoundly anti-rheumatic against two complementary experimental RA mouse models, collagen-induced arthritis (CIA) and collagen antibody-induced arthritis (CAIA), via targeting IL-17 secreting Th17 cells and regulatory T cells (Treg)...
October 7, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28994496/effects-of-bithiophene-imide-fusion-on-device-performance-of-organic-thin-film-transistors-and-all-polymer-solar-cells
#9
Xugang Guo, Yingfeng Wang, Zhenglong Yan, Han Guo, Mohammad Afsar Uddin, Shaohua Ling, Xin Zhou, Huimin Su, Junfeng Dai, Han Young Woo
Two new bithiophene imide (BTI)-based n-type polymers are synthesized. The fused BTI dimer-based f-BTI2-FT shows a smaller bandgap, lower LUMO, and higher crystallinity than s-BTI2-FT containing a single bond connected BTI dimer. s-BTI2-FT exhibits a remarkable electron mobility of 0.82 cm2 V-1 s-1 and f-BTI2-FT shows a further improved mobility of 1.13 cm2 V-1 s-1 in transistors. When blended with a polymer donor PTB7-Th, the f-BTI2-FT-based all-polymer solar cells (all-PSCs) achieve a PCE of 6.85%, the highest value for all-PSCs not based on naphthalene (or perylene) diimide polymer acceptors...
October 10, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28993437/thyroid-hormone-regulates-protease-expression-and-activation-of-notch-signaling-in-implantation
#10
Diletta Piccirilli, Enke Baldini, Micol Massimiani, Antonella Camaioni, Antonietta Salustri, Roberta Bernardini, Marco Centanni, Salvatore Ulisse, Constanzo Moretti, Luisa Campagnolo
A clinical association between thyroid dysfunction and pregnancy complications has been extensively reported, however the molecular mechanisms through which TH might regulate key-events of pregnancy have not been elucidated yet. In this respect, we performed in vivo studies in MMI- induced hypothyroid pregnant mice, evaluating the effect of hypothyroidism on the number of implantation sites, developing embryos/resorptions and pups per litter, at 4.5, 10.5, 18.5 days post coitum (dpc) and at birth. We also studied the expression of major molecules involved in implantation and placentation, such as the proteases ISPs, MMPs, TIMPs and Notch pathway related genes...
October 9, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28992464/pathogenesis-of-infections-in-hiv-infected-individuals-insights-from-primary-immunodeficiencies
#11
REVIEW
Qian Zhang, Pierre Frange, Stéphane Blanche, Jean-Laurent Casanova
Following infection with almost any given microorganism other than an emerging pathogen, only a minority of individuals develop life-threatening clinical disease, implying that these individuals have some form of immunodeficiency. A growing number of inherited and acquired immunodeficiencies have been deciphered over the last 50 years. HIV infection is probably the best-known acquired immunodeficiency. It emerged about 40 years ago and precipitates various severe infections, the occurrence of which is associated with a fall in circulating CD4(+) T cells...
October 6, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28992082/frequency-of-micronuclei-among-persons-resident-in-the-vicinity-of-a-mineral-sand-processing-factory-in-pulmoddai-sri-lanka
#12
Tania Warnakulasuriya, Senani Williams, Mangala Dabarera, Kusum Rodrigo, Thiwanka Weerakkody, Rajitha Wickremasinghe
Lanka Mineral Sands Ltd (LMS), a government-owned company, has been mining mineral sands including monazite which contains thorium (Th) at Pulmoddai, Sri Lanka since 1957. Th emits alpha particles on decay and gamma rays are emitted by the daughter products. The cytokinesis-blocked micronucleus (MN) assay is popular for large scale radiation exposure studies as it is an easy, fast and reliable method of biodosimetry. The objective of the study was to determine the frequency of micronuclei among persons residing in the vicinity of LMS...
August 29, 2017: Mutagenesis
https://www.readbyqxmd.com/read/28991675/sodium-butyrate-exerts-protective-effect-against-parkinson-s-disease-in-mice-via-stimulation-of-glucagon-like-peptide-1
#13
Jiaming Liu, Fangyan Wang, Suzhi Liu, Jimei Du, Xuezhen Hu, Jiaojiao Xiong, Renchi Fang, Wenqian Chen, Jing Sun
Sodium butyrate (NaB) has exhibited protective activity in neurological disorders. Here, we investigated the neuroprotective effect and potential mechanisms of NaB in a mouse model of Parkinson's disease (PD). A mouse was intraperitoneally treated with MPTP (30mg/kg) for 7 consecutive days to induce PD model and NaB (200mg/kg) was intragastrically treated for 3weeks. The behavioral tests were then conducted. Dopaminergic degeneration was evaluated by western blot and immunohistochemistry of tyrosine hydroxylase (TH) in the SN...
October 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28991187/peptides-from-colochirus-robustus-enhance-immune-function-via-activating-cd3%C3%AE-and-zap-70-mediated-signaling-in-c57bl-6-mice
#14
Xiaogang Du, Fangliang Lian, Yunkun Li, Dong Li, Dayong Wu, Qunli Feng, Zhijiang Feng, Yun Li, Guixian Bu, Fengyan Meng, Xiaohan Cao, Zhiyu Chen, Xianyin Zeng
Colochirus robustus, a species of sea cucumber, has long been used in East and Southeast Asia as nutritious food as well as for certain medicinal purpose. Studies have shown a number of biological functions associated with consumption of sea cucumber, many of which are attributed to its major component, sea cucumber peptides (SCP). However, how SCP impacts immune system, which is critical for host defense, has not been defined. To address this issue, in the present study, we conducted comprehensive analysis of immune function after oral administration of SCP (0, 25, 50, and 75 mg/kg body weigh) for eight weeks in C57BL/6 mice...
October 8, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28987828/acute-response-of-neurons-an-early-event-of-neuronal-cell-death-after-facial-nerve-injury
#15
Haitao Huang, Zhigang Sun, Huawei Liu, Juntao Ma, Min Hu
OBJECTIVE: This study was to research the early acute response events of facial nerve injury. METHODS: A total of 60 male Sprague-Dawley rats were randomly divided into two groups. For rats in study group, facial nerve anastomosis was performed. Rats in control group were undergone the same surgical procedure, but without cutting off the facial nerve. Before nerve anastomosis and at day 1, 3, 7, 14 and 28 after nerve anastomosis, 5 rats of each group were selected and right side brainstem tissue samples containing the facial nerve nucleus were obtained...
October 4, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28986989/utility-of-phox2b-immunohistochemical-stain-in-neural-crest-tumors-and-non-neural-crest-tumors-in-pediatric-patients
#16
Mikako Warren, Ryosuke Matsuno, Henry Tran, Hiroyuki Shimada
BACKGROUND: This study evaluated the utility of Phox2b in pediatric tumors. Previously tyrosine hydroxylase (TH) was the most widely utilized sympathoadrenal marker specific for neural crest tumors with neuronal/neuroendocrine differentiation. However, its sensitivity is insufficient. Recently Phox2b has emerged as another specific marker for this entity. METHODS: Phox2b IHC was performed on 159 pediatric tumors including (1) 65 neural crest tumors with neuronal differentiation [peripheral neuroblastic tumors (pNT)]: 15 neuroblastoma undifferentiated (NB-UD), 10 NB poorly differentiated (NB-PD), 10 NB differentiating (NB-D), 10 ganglioneuroblastoma intermixed (GNBi), 10 GNB nodular (GNBn), and 10 ganglioneuroma (GN); (2) 23 neural crest tumors with neuroendocrine differentiation [pheochromocytoma/paraganglioma (PCC/PG)]; (3) 27 other neural crest tumors including one composite rhabdomyosarcoma/neuroblastoma; and (4) 44 non-neural crest tumors...
October 7, 2017: Histopathology
https://www.readbyqxmd.com/read/28986252/uric-acid-demonstrates-neuroprotective-effect-on-parkinson-s-disease-mice-through-nrf2-are-signaling-pathway
#17
Ting-Ting Huang, Dong-Lin Hao, Bo-Na Wu, Lun-Lin Mao, Jin Zhang
Uric acid has neuroprotective effect on Parkinson's disease (PD) by inhibiting oxidative damage and neuronal cell death. Our previous study has shown that uric acid protected dopaminergic cell line damage through inhibiting accumulation of NF-E2-related factor 2 (Nrf2). This study aimed to investigate its in vivo neuroprotective effect. PD was induced by MPTP intraperitoneally injection for 7 d in male C57BL/6 mice. Mice were treated with either uric acid (intraperitoneally injection 250 mg/kg) or saline for a total of 13 d...
October 3, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28985343/angiotensinergic-innervation-of-the-human-right-atrium-implications-for-cardiac-reflexes
#18
Jürgen Bohlender, Jürg Nussberger, Hendrik Tevaearai, Hans Imboden
Background: The right atrium is densely innervated and provides sensory input to important cardio-circulatory reflexes controlling cardiac output and blood pressure. Its angiotensin (Ang) II-expressing innervation may release Ang II as a neuropeptide co-transmitter to modulate reflexes but has not yet been characterized. Methods: Intraoperative surgical biopsies from human right atria (n=7) were immunocytologically stained for Ang II, tyrosine hydroxylase (TH) and synaptophysin (SYN)...
September 5, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28984618/reduced-th-expression-and-%C3%AE-synuclein-accumulation-contribute-towards-nigrostriatal-dysfunction-in-experimental-hepatic-encephalopathy
#19
Isabel Suárez, Guillermo Bodega, Miguel Rubio, Benjamín Fernández
PURPOSE: The present work examines α-synuclein expression in the nigrostriatal system of a rat chronic hepatic encephalopathy model induced by portacaval anastomosis (PCA). There is evidence that dopaminergic dysfunction in disease conditions is strongly associated with such expression. Possible relationships among dopaminergic neurons, astroglial cells and α-synuclein expression were sought. METHODS: Brain tissue samples from rats at 1 and 6 months post-PCA, and controls, were analysed immunohistochemically using antibodies against tyrosine hydroxylase (TH), α-synuclein, glial fibrillary acidic protein (GFAP) and ubiquitin (Ub)...
2017: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/28982687/dlx5-fgf10-signaling-cascade-controls-cranial-neural-crest-and-myoblast-interaction-during-oropharyngeal-patterning-and-development
#20
Hideki Sugii, Alexandre Grimaldi, Jingyuan Li, Carolina Parada, Thach Vu-Ho, Jifan Feng, Junjun Jing, Yuan Yuan, Yuxing Guo, Hidefumi Maeda, Yang Chai
Craniofacial development depends on cell-cell interactions, coordinated cellular movement and differentiation under the control of regulatory gene networks, which include the distal-less (Dlx) gene family. However, the functional significance of Dlx5 in patterning the oropharyngeal region has remained unknown. Here we show that loss of Dlx5 leads to a shortened soft palate and an absence of the levator veli palatini, palatopharyngeus, and palatoglossus muscles that are derived from the 4(th) pharyngeal arch (PA), but the tensor veli palatini, derived from the 1(st) PA, is unaffected...
October 5, 2017: Development
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