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https://www.readbyqxmd.com/read/29783175/hiv-viral-suppression-in-oman-encouraging-progress-toward-achieving-the-united-nations-third-90
#1
Ali Elgalib, Samir Shah, Zeyana Al-Habsi, Maha Al-Fouri, Halima Al-Sawafi, Jalila Al-Noumani, Adil Al-Baloushi, Saad Al-Alawi, Salma Al-Badi, Zainab Mohammed, Jokha Al-Ghafri, Asma Suleimani, Huda Al-Mashani, Jyothish Raju, Saada Al-Riyami, Muna Al-Shukri, Abdul Wahab, Bilal Hussain, Khalifa Al-Naabi, Anantha Narayan, Noreen Oliveros, George Prasad, Ahmed Hussein, Rajeev Kashyp, Khalid Al-Shardi, Ahmed Nada, Shakil Akhwand, Bina Kamble, Kawthar Al-Aamri, Suad Al-Mukhaini, Hanan Al-Kindi, Faryal Khamis, Amal Al-Maani, Idris Al-Abaidani, Seif Al-Abri
OBJECTIVE: To assess the impact of capacity-building interventions introduced by the Oman National AIDS Programme on the quality of HIV care in the country. METHODS: HIV viral load (VL) suppression and loss to follow-up (LTFU) rates were calculated for the period before (in December 2015; n=1098) and after (in June 2017; n=1185) the introduction of the interventions: training, support, and care pathway development. Three HIV VL cuts-offs at last measurement in the year of interest were used to define VL suppression...
May 18, 2018: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29783016/systematic-investigation-of-the-erigeron-breviscapus-mechanism-for-treating-cerebrovascular-disease
#2
Jiangmei Wang, Yangyang Chen, Baoshi Liu, Qian Wang, Lulu Zhang, Zhenzhong Wang, Jun Zhou, Wei Xiao, Chunli Zheng, Yonghua Wang
ETHNOPHARMACOLOGICAL RELEVANCE: Cerebrovascular diseases (CBVDs), characterized by striking morbidity and mortality, have become the most common life-threatening diseases. The existing drugs of CBVDs target one or a few of pathogenic factors, the efficacy of which is limited because of the complexity of CBVDs. Traditional Chinese medicine (TCM), featured by multi-component and multi-target endows the great effectiveness in CBVDs treatment. For instance, Erigeron breviscapus (vant.) Hand...
May 18, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29782989/nadph-oxidase-2-deletion-enhances-neurogenesis-following-traumatic-brain-injury
#3
Jing Wang, Merry W Ma, Krishnan M Dhandapani, Darrell W Brann
The NADPH oxidase (NOX) enzyme family is a major source of reactive oxygen species (ROS) and contributor to the secondary pathology underlying traumatic brain injury (TBI). However, little is known about how NOX-derived ROS influences the proliferation and cell-fate determination of neural stem/progenitor cells (NSCs/NPCs) following TBI. In the current study, we found that deletion of NOX2 (NOX2-KO) significantly decreases the population of radial glia-like NSCs and neuroblasts but maintains the population of non-radial Sox2 expressing stem cells under physiological (non-injury) conditions...
May 18, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29782792/antimicrobial-properties-of-2d-mno-2-and-mos-2-nanomaterials-vertically-aligned-on-graphene-materials-and-ti-3-c-2-mxene
#4
Farbod Alimohammadi, Mohammad Sharifian Gh, Nuwan H Attanayake, Akila C Thenuwara, Yury Gogotsi, Babak Anasori, Daniel R Strongin
Two dimensional (2D) nanomaterials have attracted considerable attention in biomedical and environmental applications due to their antimicrobial activity. In the interest of investigating the primary antimicrobial mode-of-action of 2D nanomaterials, we studied the antimicrobial properties of MnO2 and MoS2 , toward Gram-positive and Gram-negative bacteria. Bacillus subtilis and Escherichia coli bacteria were treated individually with 100 μg/mL of randomly oriented and vertically aligned nanomaterials for 3 h in the dark...
May 21, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29782693/multidomain-intervention-for-the-prevention-of-cognitive-decline-after-stroke-a-pooled-patient-level-data-analysis
#5
Yvonne Teuschl, Hege Ihle-Hansen, Karl Matz, Alexandra Dachenhausen, Paulina Ratajczak, Jaakko Tuomilehto, Marie Helene Ursin, Guri Hagberg, Bente Thommessen, Anne Rita Øksengård, Michael Brainin
BACKGROUND: The aim of this pooled patient-level data analysis was to test if multidomain interventions, addressing several modifiable vascular risk factors simultaneously, is more effective than usual post-stroke care for the prevention of cognitive decline after stroke. METHODS: This pooled patient-level data analysis includes two randomised controlled trials using a multidomain approach to target vascular risk factors in stroke patients and cognition as primary outcome...
May 21, 2018: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29782549/sphingosine-1-phosphate-receptor-2-facilitates-pulmonary-fibrosis-through-potentiating-il-13-pathway-in-macrophages
#6
Juanjuan Zhao, Yasuo Okamoto, Yuya Asano, Kazuhiro Ishimaru, Sho Aki, Kazuaki Yoshioka, Noriko Takuwa, Takashi Wada, Yutaka Inagaki, Chiaki Takahashi, Takumi Nishiuchi, Yoh Takuwa
Idiopathic pulmonary fibrosis is a devastating disease with poor prognosis. The pathogenic role of the lysophospholipid mediator sphingosine-1-phosphate and its receptor S1PR2 in lung fibrosis is unknown. We show here that genetic deletion of S1pr2 strikingly attenuated lung fibrosis induced by repeated injections of bleomycin in mice. We observed by using S1pr2LacZ/+ mice that S1PR2 was expressed in alveolar macrophages, vascular endothelial cells and alveolar epithelial cells in the lung and that S1PR2-expressing cells accumulated in the fibrotic legions...
2018: PloS One
https://www.readbyqxmd.com/read/29782545/rosmarinic-acid-is-a-novel-inhibitor-for-hepatitis-b-virus-replication-targeting-viral-epsilon-rna-polymerase-interaction
#7
Yuta Tsukamoto, Sotaro Ikeda, Koji Uwai, Riho Taguchi, Kazuaki Chayama, Takemasa Sakaguchi, Ryo Narita, Wan-Ling Yao, Fumihiko Takeuchi, Yukie Otakaki, Koichi Watashi, Takaji Wakita, Hiroki Kato, Takashi Fujita
Current therapeutics for hepatitis B virus (HBV) patients such as nucleoside analogs (NAs) are effective; however, new antiviral drugs against HBV are still desired. Since the interaction between the epsilon (ε) sequence of HBV pregenomic RNA and viral polymerase (Pol) is a key step in the HBV replication cycle, we aimed to identify small compounds for its inhibition, and established a pull-down assay system for the detection of ε-RNA-binding-Pol. Screening showed that 5 out of 3,965 compounds inhibited ε-Pol binding, and we identified rosmarinic acid, which exhibited specificity, as a potential antiviral agent...
2018: PloS One
https://www.readbyqxmd.com/read/29782541/an-unappreciated-role-for-neutrophil-dc-hybrids-in-immunity-to-invasive-fungal-infections
#8
J Scott Fites, Michael Gui, John F Kernien, Paige Negoro, Zeina Dagher, David B Sykes, Jeniel E Nett, Michael K Mansour, Bruce S Klein
Neutrophils are classically defined as terminally differentiated, short-lived cells; however, neutrophils can be long-lived with phenotypic plasticity. During inflammation, a subset of neutrophils transdifferentiate into a population called neutrophil-DC hybrids (PMN-DCs) having properties of both neutrophils and dendritic cells. While these cells ubiquitously appear during inflammation, the role of PMN-DCs in disease remains poorly understood. We observed the differentiation of PMN-DCs in pre-clinical murine models of fungal infection: blastomycosis, aspergillosis and candidiasis...
May 21, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29782502/a-monoclonal-antibody-targeting-amyloid-%C3%AE-a%C3%AE-restores-complement-factor-i-bioactivity-potential-implications-in-age-related-macular-degeneration-and-alzheimer-s-disease
#9
Kameran Lashkari, Gianna Teague, Hong Chen, Yong-Qing Lin, Sanjay Kumar, Megan M McLaughlin, Francisco J López
Activation of the alternative complement cascade has been implicated in the pathogenesis of age related macular degeneration (AMD) and Alzheimer's disease (AD). Amyloid β (Aβ), a component of drusen, may promote complement activation by inhibiting CFI bioactivity. We determined whether Aβ reduced CFI bioactivity and whether antibodies against Aβ including a monoclonal antibody, GSK933776 could restore CFI bioactivity. We also measured CFI bioactivity in plasma of subjects with AMD and AD. In support of the GSK933776 development program in AMD (geographic atrophy), we developed a quantitative assay to measure CFI bioactivity based on its ability to cleave C3b to iC3b, and repeated it in presence or absence of Aβ and anti-Aβ antibodies...
2018: PloS One
https://www.readbyqxmd.com/read/29782471/new-approach-in-acne-therapy-a-specific-bacteriocin-activity-and-a-targeted-anti-il-8-property-in-just-1-probiotic-strain-the-l-salivarius-ls03
#10
Francesca Deidda, Angela Amoruso, Stefania Nicola, Teresa Graziano, Marco Pane, Luca Mogna
GOALS: The aim of this research was to assess the antibacterial activity of Lactobacillus salivarius LS03 (DSM 22776) against Propionibacterium acnes and its anti-inflammatory properties by inhibiting P. acnes-induced interleukin-8 (IL-8) release. BACKGROUND: Acne is the most common skin disease, causing significant psychosocial problems for those afflicted. Currently available agents for acne treatment, such as oral antibiotics, have limited use. Thus, development of novel agents to treat this disease is needed...
May 18, 2018: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/29782355/inhibition-of-vascular-endothelial-cell-leak-following-escherichia-coli-attachment-in-an-experimental-model-of-sepsis
#11
Tony M McHale, Carolina D Garciarena, Robert P Fagan, Stephen G J Smith, Ignacio Martin-Loches, Gerard F Curley, Fidelma Fitzpatrick, Steve W Kerrigan
OBJECTIVES: The vascular endothelium is a major target of sepsis-induced events, and endothelial activation accounts for much of the pathology of sepsis. Urinary tract infections and pneumonia caused by Escherichia coli are among of the most common infections causing sepsis in both community and hospital settings. Currently, there are no approved drugs on the market to treat the underlying pathophysiology of sepsis. The aim of this study is to elucidate the molecular mechanism by which E...
May 18, 2018: Critical Care Medicine
https://www.readbyqxmd.com/read/29782323/role-of-blood-brain-barrier-in-alzheimer-s-disease
#12
Zhiyou Cai, Pei-Feng Qiao, Cheng-Qun Wan, Min Cai, Nan-Kai Zhou, Qin Li
The blood-brain barrier (BBB) is involved in the pathogenesis of Alzheimer's disease (AD). BBB is a highly selective semipermeable structural and chemical barrier which ensures a stable internal environment of the brain and prevents foreign objects invading the brain tissue. BBB dysfunction induces the failure of Aβ transport from brain to the peripheral circulation across the BBB. Especially, decreased levels of LRP-1 (low density lipoprotein receptor-related protein 1) and increased levels of RAGE (receptor for advanced glycation endproducts) at the BBB can cause the failure of Aβ transport...
May 16, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29782205/nad-repletion-produces-no-therapeutic-effect-in-mice-with-respiratory-chain-complex-iii-deficiency-and-chronic-energy-deprivation
#13
Janne Purhonen, Jayasimman Rajendran, Saara Tegelberg, Olli-Pekka Smolander, Eija Pirinen, Jukka Kallijärvi, Vineta Fellman
Biosynthetic precursors of NAD+ can replenish a decreased cellular NAD+ pool and, supposedly via sirtuin (SIRT) deacetylases, improve mitochondrial function. We found decreased hepatic NAD+ concentration and downregulated biosynthesis in Bcs1lp.S78G knock-in mice with respiratory chain complex III deficiency and mitochondrial hepatopathy. Aiming at ameliorating disease progression via NAD+ repletion and improved mitochondrial function, we fed these mice nicotinamide riboside (NR), a NAD+ precursor. A targeted metabolomics verified successful administration and suggested enhanced NAD+ biosynthesis in the treated mice, although hepatic NAD+ concentration was unchanged at the end point...
May 21, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29781582/sphingosine-1-phosphate-receptor-1-signaling-maintains-endothelial-cell-barrier-function-and-protects-against-immune-complex-induced-vascular-injury
#14
Nathalie Burg, Steven Swendeman, Stefan Worgall, Timothy Hla, Jane E Salmon
OBJECTIVE: Immune complex (IC) deposition activates neutrophils (PMN), increases vascular permeability and leads to organ damage in SLE and RA. The bioactive lipid sphingosine-1-phosphate (S1P), acting via S1P receptor 1 (S1P1 ), is a key regulator of endothelial cell (EC) barrier function. We hypothesized that augmenting EC integrity via S1P1 signaling would attenuate inflammatory injury mediated by ICs. METHODS: In vitro barrier function was assessed in human umbilical vein endothelial cells (HUVECs) by Electric Cell-substrate Impedance Sensing (ECIS)...
May 21, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29781537/microrna-508-suppresses-epithelial-mesenchymal-transition-migration-and-invasion-of-ovarian-cancer-cells-through-the-mapk1-erk-signaling-pathway
#15
Lan Hong, Yifeng Wang, Wangsheng Chen, Shuying Yang
Ovarian cancer (OC) is the sixth most common cancer in women worldwide. Despite advances in detection and therapies, it still represents the most lethal gynecologic malignancy in the industrialized countries. Unfortunately, the molecular events that lead to the development of this highly aggressive disease remain largely unknown. The study explored the ability of microRNA-508 (miR-508) to influence proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT) in OC cells. We quantified the level of miR-508 cancer tissues with corresponding adjacent normal tissues collected from 84 patients with OC...
May 21, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29781408/gilles-de-la-tourette-syndrome-as-a-paradigmatic-neuropsychiatric-disorder
#16
Andrea E Cavanna
Gilles de la Tourette syndrome is a chronic and complex tic disorder accompanied by specific behavioral problems in the majority of patients. With its multifaceted interplay between motion and emotion, this condition is a paradigmatic example of the science and art of clinical neuropsychiatry. This review article encompasses the clinical phenomenology of motor and vocal tics and associated sensory experiences (premonitory urges), as well as the behavioral spectrum of the most common comorbidities, including obsessive-compulsive disorder, attention-deficit and hyperactivity disorder, affective symptoms, and impulsivity...
May 21, 2018: CNS Spectrums
https://www.readbyqxmd.com/read/29781361/erythromycin-combined-with-corticosteroid-reduced-inflammation-and-modified-trauma-induced-tracheal-stenosis-in-a-rabbit-model
#17
Qin Enyuan, Xu Mingpeng, Gan Luoman, Gan Jinghua, Li Yu, Li Wentao, Hou Changchun, Li Lihua, Meng Xiaoyan, Zhou Lei, Liu Guangnan
BACKGROUND: Patients with endotracheal intubation or tracheostomy are subject to benign tracheal stenosis (TS), for which current therapies are unsatisfactory. We conducted a preliminary investigation of drugs and drug combinations for the prevention and treatment of TS in a rabbit model. METHODS: Fifty-four rabbits were apportioned into nine groups according to treatment: sham-operated control; untreated TS model; amikacin; budesonide; erythromycin; penicillin; amikacin + budesonide; erythromycin + budesonide; and penicillin + budesonide...
January 2018: Therapeutic Advances in Respiratory Disease
https://www.readbyqxmd.com/read/29781349/recent-advances-in-targeting-protein-arginine-methyltransferase-enzymes-in-cancer-therapy
#18
Emily Smith, Wei Zhou, Polina Shindiapina, Said Sif, Chenglong Li, Robert A Baiocchi
Exploration in the field of epigenetics has revealed the diverse roles of the protein arginine methyltransferase (PRMT) family of proteins in multiple disease states. These findings have led to the development of specific inhibitors and discovery of several new classes of drugs with potential to treat both benign and malignant conditions. Areas covered: We provide an overview on the role of PRMT enzymes in healthy and malignant cells, highlighting the role of arginine methylation in specific pathways relevant to cancer pathogenesis...
May 21, 2018: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/29781252/subtype-selective-inhibition-of-acid-sensing-ion-channel-3-by-a-natural-flavonoid
#19
Xiao-Gang Yan, Wei-Guang Li, Xin Qi, Jia-Jie Zhu, Chen Huang, Shao-Ling Han, Qin Jiang, Tian-Le Xu, Jian-Hua Liu
AIMS: Acid-sensing ion channels (ASICs) are extracellular proton-gated cation channels that have been implicated in multiple physiological and pathological processes, and peripheral ASIC3 prominently participate into the pathogenesis of chronic pain, itch, and neuroinflammation, which necessitates the need for discovery and development of novel modulators in a subtype-specific manner. METHODS: Whole-cell patch clamp recordings and behavioral assays were used to examine the effect of several natural compounds on the ASIC-mediated currents and acid-induced nocifensive behavior, respectively...
May 20, 2018: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29781188/a-novel-anti-malarial-drug-derivative-inhibits-cyclic-gmp-amp-synthase-in-trex1-deficient-mice
#20
Jie An, Joshua J Woodward, Weinan Lai, Mark Minie, Xizhang Sun, Lena Tanaka, Jessica M Snyder, Tomikazu Sasaki, Keith B Elkon
OBJECTIVE: Type I interferon (IFN-I) is strongly implicated in the pathogenesis of Systemic Lupus Erythematosus (SLE) as well as rare monogenic 'interferonopathies' such as Aicardi-Goutieres Syndrome (AGS) caused by mutations in the DNA exonuclease, TREX1. The DNA-activated IFN-I pathway, cyclic GMP-AMP (cGAMP) synthase (cGAS), is linked to subsets of AGS and lupus. We identified inhibitors of DNA-cGAS interaction and tested lead candidate, X6, in a mouse model of AGS. METHODS: Trex1-/- mice were treated orally from birth with either X6 or HCQ for 8 weeks...
May 21, 2018: Arthritis & Rheumatology
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