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https://www.readbyqxmd.com/read/27897119/glaucoma-hot-topics-in-pharmacology
#1
Shiama I Balendra, Parth Arvind Shah, Mishank Jain, Andrzej Grzybowski, Francesca M Cordeiro
BACKGROUND: Glaucoma comprises a group of neurodegenerative diseases resulting in retinal ganglion cell death within the optic nerve head. It is projected to affect almost 80 million people worldwide by 2020. The condition's asymptomatic nature translates to over half of glaucoma sufferers being unaware of their condition. By the time of diagnosis, irreversible blindness is likely to have occurred. Prime areas of glaucoma research therefore include identification and optimization of risk factors for the disease, accurate and early diagnostic tools and novel therapeutic methods...
November 29, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27828622/sapoviruses-in-children-with-acute-gastroenteritis-from-manaus-amazon-region-brazil-2010-2011
#2
Tammy Kathlyn Amaral Reymão, Juliana das Merces Hernandez, Samya Thalita Picanço da Costa, Maísa Silva de Sousa, Darleise de Souza Oliveira, Luciana Damascena da Silva, Renato da Silva Bandeira, Ian Carlos Gomes de Lima, Luana da Silva Soares, Joana Darc Pereira Mascarenhas, Yvone Benchimol Gabbay
Sapoviruses (SaVs) are responsible for acute gastroenteritis in humans, especially children and the elderly. In Brazil, data on SaVs infections are very limited, especially in Northern Brazil. Here, we investigated the occurrence of SaVs in samples from hospitalized children under ten years old that presented acute gastroenteritis. Positive samples were genotyped and phylogenetic analysis was performed using prototype strains sequences obtained from GenBank database. In total, 156 fecal samples were screened by RT-PCR for SaVs...
November 3, 2016: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/27823888/novel-gold-i-complexes-with-5-phenyl-1-3-4-oxadiazole-2-thione-and-phosphine-as-potential-anticancer-and-antileishmanial-agents
#3
Joana Darc S Chaves, Luiza Guimarães Tunes, Chris Hebert de J Franco, Thiago Martins Francisco, Charlane Cimini Corrêa, Silvane M F Murta, Rubens Lima Monte-Neto, Heveline Silva, Ana Paula S Fontes, Mauro V de Almeida
The current anticancer and antileishmanial drug arsenal presents several limitations concerning their specificity, efficacy, costs and the emergence of drug-resistant cells lines, which encourages the urgent need to search for new alternatives. Inspired by the fact that gold(I)-based compounds are promising antitumoral and antileishmanial drug candidates, we synthesized novel gold(I) complexes containing phosphine and 5-phenyl-1,3,4-oxadiazole-2-thione and evaluated their anticancer and antileishmanial activities...
October 24, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27798646/independent-origin-and-global-distribution-of-distinct-plasmodium-vivax-duffy-binding-protein-gene-duplications
#4
Jessica B Hostetler, Eugenia Lo, Usheer Kanjee, Chanaki Amaratunga, Seila Suon, Sokunthea Sreng, Sivanna Mao, Delenasaw Yewhalaw, Anjali Mascarenhas, Dominic P Kwiatkowski, Marcelo U Ferreira, Pradipsinh K Rathod, Guiyun Yan, Rick M Fairhurst, Manoj T Duraisingh, Julian C Rayner
BACKGROUND: Plasmodium vivax causes the majority of malaria episodes outside Africa, but remains a relatively understudied pathogen. The pathology of P. vivax infection depends critically on the parasite's ability to recognize and invade human erythrocytes. This invasion process involves an interaction between P. vivax Duffy Binding Protein (PvDBP) in merozoites and the Duffy antigen receptor for chemokines (DARC) on the erythrocyte surface. Whole-genome sequencing of clinical isolates recently established that some P...
October 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27711207/genetic-modifiers-of-white-blood-cell-count-albuminuria-and-glomerular-filtration-rate-in-children-with-sickle-cell-anemia
#5
Beverly A Schaefer, Jonathan M Flanagan, Ofelia A Alvarez, Stephen C Nelson, Banu Aygun, Kerri A Nottage, Alex George, Carla W Roberts, Connie M Piccone, Thad A Howard, Barry R Davis, Russell E Ware
Discovery and validation of genetic variants that influence disease severity in children with sickle cell anemia (SCA) could lead to early identification of high-risk patients, better screening strategies, and intervention with targeted and preventive therapy. We hypothesized that newly identified genetic risk factors for the general African American population could also impact laboratory biomarkers known to contribute to the clinical disease expression of SCA, including variants influencing the white blood cell count and the development of albuminuria and abnormal glomerular filtration rate...
2016: PloS One
https://www.readbyqxmd.com/read/27668251/the-darc-cd82-axis-discloses-bone-marrow-macrophages-as-guardians-of-long-term-hematopoietic-stem-cells-quiescence
#6
COMMENT
Alejandro Pérez-Fernández, Ángel Hernández-Hernández
No abstract text is available yet for this article.
2016: Stem Cell Investigation
https://www.readbyqxmd.com/read/27668247/shedding-light-on-hsc-dormancy-a-role-for-the-darc
#7
COMMENT
Katherine C MacNamara
No abstract text is available yet for this article.
2016: Stem Cell Investigation
https://www.readbyqxmd.com/read/27578850/naturally-acquired-binding-inhibitory-antibodies-to-plasmodium-vivax-duffy-binding-protein-and-clinical-immunity-to-malaria-in-rural-amazonians
#8
Vanessa C Nicolete, Sarah Frischmann, Susana Barbosa, Christopher L King, Marcelo U Ferreira
BACKGROUND:  Antibodies to the cysteine-rich domain II of Plasmodium vivax Duffy binding protein (PvDBP) can inhibit binding of this parasite ligand to its receptor on red blood cells, the Duffy antigen/receptor for chemokines. These binding-inhibitory antibodies (BIAbs) also inhibit P. vivax invasion of reticulocytes in vitro. METHODS:  To investigate whether naturally acquired anti-PvDBP antibodies are associated with reduced risk of clinical malaria in a population exposed to low levels of P...
November 15, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27555313/a-novel-erythrocyte-binding-protein-of-plasmodium-vivax-suggests-an-alternate-invasion-pathway-into-duffy-positive-reticulocytes
#9
Francis B Ntumngia, Richard Thomson-Luque, Letícia de Menezes Torres, Karthigayan Gunalan, Luzia H Carvalho, John H Adams
UNLABELLED: Erythrocyte invasion by malaria parasites is essential for blood-stage development and an important determinant of host range. In Plasmodium vivax, the interaction between the Duffy binding protein (DBP) and its cognate receptor, the Duffy antigen receptor for chemokines (DARC), on human erythrocytes is central to blood-stage infection. Contrary to this established pathway of invasion, there is growing evidence of P. vivax infections occurring in Duffy blood group-negative individuals, suggesting that the parasite might have gained an alternative pathway to infect this group of individuals...
2016: MBio
https://www.readbyqxmd.com/read/27535749/the-retina-as-an-early-biomarker-of-neurodegeneration-in-a-rotenone-induced-model-of-parkinson-s-disease-evidence-for-a-neuroprotective-effect-of-rosiglitazone-in-the-eye-and-brain
#10
Eduardo Maria Normando, Benjamin Michael Davis, Lies De Groef, Shereen Nizari, Lisa A Turner, Nivedita Ravindran, Milena Pahlitzsch, Jonathan Brenton, Giulia Malaguarnera, Li Guo, Satyanarayana Somavarapu, Maria Francesca Cordeiro
Parkinson's Disease (PD) is the second most common neurodegenerative disease worldwide, affecting 1 % of the population over 65 years of age. Dopaminergic cell death in the substantia nigra and accumulation of Lewy bodies are the defining neuropathological hallmarks of the disease. Neuronal death and dysfunction have been reported in other central nervous system regions, including the retina. Symptoms of PD typically manifest only when more than 70 % of dopaminergic cells are lost, and the definitive diagnosis of PD can only be made histologically at post-mortem, with few biomarkers available...
2016: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/27519558/correlation-between-magnetic-resonance-imaging-findings-after-posterior-sagittal-anorectoplasty-for-anorectal-malformations-and-the-clinical-outcome-preliminary-report
#11
Anna Morandi, Irene Borzani, Francesco Macchini, Giulia Brisighelli, Dario Consonni, Ernesto Leva
BACKGROUND/PURPOSE: To assess the anatomical results after posterior sagittal anorectoplasty (PSARP) by magnetic resonance imaging (MRI) and to evaluate the correlation of these findings with clinical outcomes. METHODS: Patients followed-up at our center after PSARP, being at least 6year old, with neither evidence of sacral abnormalities nor spinal dysraphisms were prospectively included. Complex ARMs were excluded. MRI was performed on a 1.5T unit. T1- and T2-weighted sequences were acquired, in orthogonal planes, according to the anal canal orientation...
November 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27503377/altered-expression-of-chemokines-and-their-receptors-at-porcine-maternal-fetal-interface-during-early-and-mid-gestational-fetal-loss
#12
Mallikarjun Bidarimath, Kasra Khalaj, Rami T Kridli, Jocelyn M Wessels, Madhuri Koti, Chandrakant Tayade
Chemokines play a significant role in pregnancy, especially during embryonic attachment and placental development. During early pregnancy, immune cells are recruited extensively to the endometrium in several species including pigs. However, this recruitment is solely mediated by the presence of the conceptus in pigs making it a unique feature compared with other species (humans, primates and mice). To understand the biological significance of chemokine expression and immune cell recruitment in the context of fetal loss, we investigate a well-characterized porcine fetal loss model during the window of early pregnancy at gestational day (gd) 20 and mid-pregnancy (gd50)...
August 8, 2016: Cell and Tissue Research
https://www.readbyqxmd.com/read/27376530/potential-role-of-darc-chemokine-interaction-in-the-recruitment-of-osteoclast-precursors-in-response-to-bacterial-lipopolysaccharide-challenge
#13
Fatemeh Alemi, Mohamed Elgendy, Bouchra Edderkaoui
Duffy antigen receptor for chemokines (DARC) binds to a number of pro-inflammatory chemokines, and since chemokines are known to regulate trafficking of osteoclast (OC) precursors, we predicted that DARC would regulate OC recruitment to sites of inflammation by modulating chemokine activity. To test this hypothesis, we evaluated the mRNA expression of Darc and the chemokines known to bind to DARC, in endothelial cells treated with bacterial lipopolysaccharide (LPS). The mRNA expression of Mcp-1, Rantes, Darc and Ccr5 was significantly increased in endothelial cells in response to LPS treatment...
November 2016: Calcified Tissue International
https://www.readbyqxmd.com/read/27171439/systematic-analysis-of-gene-expression-alterations-and-clinical-outcomes-for-long-chain-acyl-coenzyme-a-synthetase-family-in-cancer
#14
Wei-Ching Chen, Chih-Yang Wang, Yu-Hsuan Hung, Tzu-Yang Weng, Meng-Chi Yen, Ming-Derg Lai
Dysregulated lipid metabolism contributes to cancer progression. Our previous study indicates that long-chain fatty acyl-Co A synthetase (ACSL) 3 is essential for lipid upregulation induced by endoplasmic reticulum stress. In this report, we aimed to identify the role of ACSL family in cancer with systematic analysis and in vitro experiment. We explored the ACSL expression using Oncomine database to determine the gene alteration during carcinogenesis and identified the association between ACSL expression and the survival of cancer patient using PrognoScan database...
2016: PloS One
https://www.readbyqxmd.com/read/27163847/kai1-cd82-darc-cd234-axis-in-the-stem-cell-niche
#15
Jin Hur, Sung Hee Baek, Hyo-Soo Kim
No abstract text is available yet for this article.
August 2, 2016: Cell Cycle
https://www.readbyqxmd.com/read/27097521/invasion-characteristics-of-a-plasmodium-knowlesi-line-newly-isolated-from-a-human
#16
Amirah Amir, Bruce Russell, Jonathan Wee Kent Liew, Robert W Moon, Mun Yik Fong, Indra Vythilingam, Vellayan Subramaniam, Georges Snounou, Yee Ling Lau
Plasmodium knowlesi is extensively used as an important malaria model and is now recognized as an important cause of human malaria in Malaysia. The strains of P. knowlesi currently used for research were isolated many decades ago, raising concerns that they might no longer be representative of contemporary parasite populations. We derived a new P. knowlesi line (University Malaya line, UM01), from a patient admitted in Kuala Lumpur, Malaysia, and compared it with a human-adapted laboratory line (A1-H.1) derived from the P...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27091397/low-patch-test-reactivity-to-nickel-in-unselected-adolescents-tested-repeatedly-with-nickel-in-infancy
#17
Elisabeth Soegaard Christiansen, Klaus Ejner Andersen, Carsten Bindslev-Jensen, Susanne Halken, Henrik Formsgaard Kjaer, Esben Eller, Arne Høst, Charlotte Gotthard Mortz
BACKGROUND: It is questionable how repeated patch tests with nickel sulfate in infancy affect nickel patch test reactivity at a later age. METHODS: The Danish Allergy Research Center (DARC) cohort encompasses 562 infants invited to a clinical examination including patch tests with nickel sulfate six times during the first 36 months of life. At the follow-up investigation at 14 years of age (2013-2014), participants were offered re-patch tests with nickel sulfate...
September 2016: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/26996598/cd82-kai1-maintains-the-dormancy-of-long-term-hematopoietic-stem-cells-through-interaction-with-darc-expressing-macrophages
#18
Jin Hur, Jae-Il Choi, Hwan Lee, Pniel Nham, Tae-Won Kim, Cheong-Whan Chae, Ji-Yeon Yun, Jin-A Kang, Jeehoon Kang, Sang Eun Lee, Chang-Hwan Yoon, Kyungjin Boo, Seokjin Ham, Tae-Young Roh, Jong Kwan Jun, Ho Lee, Sung Hee Baek, Hyo-Soo Kim
Hematopoiesis is regulated by crosstalk between long-term repopulating hematopoietic stem cells (LT-HSCs) and supporting niche cells in the bone marrow (BM). Here, we examine the role of CD82/KAI1 in niche-mediated LT-HSC maintenance. We found that CD82/KAI1 is expressed predominantly on LT-HSCs and rarely on other hematopoietic stem-progenitor cells (HSPCs). In Cd82(-/-) mice, LT-HSCs were selectively lost as they exited from quiescence and differentiated. Mechanistically, CD82-based TGF-β1/Smad3 signaling leads to induction of CDK inhibitors and cell-cycle inhibition...
April 7, 2016: Cell Stem Cell
https://www.readbyqxmd.com/read/26979459/different-array-cgh-profiles-within-hereditary-breast-cancer-tumors-associated-to-brca1-expression-and-overall-survival
#19
Carolina Alvarez, Andrés Aravena, Teresa Tapia, Ester Rozenblum, Luisa Solís, Alejandro Corvalán, Mauricio Camus, Manuel Alvarez, David Munroe, Alejandro Maass, Pilar Carvallo
BACKGROUND: Array CGH analysis of breast tumors has contributed to the identification of different genomic profiles in these tumors. Loss of DNA repair by BRCA1 functional deficiency in breast cancer has been proposed as a relevant contribution to breast cancer progression for tumors with no germline mutation. Identifying the genomic alterations taking place in BRCA1 not expressing tumors will lead us to a better understanding of the cellular functions affected in this heterogeneous disease...
March 15, 2016: BMC Cancer
https://www.readbyqxmd.com/read/26964292/-reliability-and-validity-of-the-japanese-version-of-the-dast-20
#20
Takuya Shimane, Akifumi Imamura, Kazuko Ikeda, Masahiro Yamamoto, Mariko Tsuji, Yukiko Nagayo, Takeshi Ohkubo, Minoru Ohta, Hiroyuki Kanda, Shigeto Okazaki, Masao Ohe, Toshihiko Matsumoto
OBJECTIVE: Assessing the degree of problems related to drug abuse is important in each treatment setting. The Drug Abuse Screening Test-20 (DAST-20) is a brief, simple 20-item instrument to measure the degree of problems related to drug use. The objective of the present study is to examine the reliability and validity of the Japanese version of the DAST-20. METHODS: We translated the DAST-20 into Japanese using back translation. The anonymous self-administered questionnaire was completed by 310 drug users at the Drug Addiction Rehabilitation Centers (DARC group, n = 113) and at HIV/AIDS regional hospitals (HIV group, n = 197) in Japan...
December 2015: Nihon Arukōru Yakubutsu Igakkai Zasshi, Japanese Journal of Alcohol Studies & Drug Dependence
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