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https://www.readbyqxmd.com/read/28917571/academy-of-dental-materials-guidance-resin-composites-part-ii-technique-sensitivity-handling-polymerization-dimensional-changes
#1
J L Ferracane, T J Hilton, J W Stansbury, D C Watts, N Silikas, N Ilie, S Heintze, M Cadenaro, R Hickel
OBJECTIVE: The objective of this work, commissioned by the Academy of Dental Materials, was to review and critically appraise test methods to characterize properties related to critical issues for dental resin composites, including technique sensitivity and handling, polymerization, and dimensional stability, in order to provide specific guidance to investigators planning studies of these properties. METHODS: The properties that relate to each of the main clinical issues identified were ranked in terms of their priority for testing, and the specific test methods within each property were ranked...
September 13, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28914250/a-comparative-evaluation-of-retention-of-pit-and-fissure-sealant-bonded-using-sixth-seventh-and-eighth-generation-adhesives-an-in-vivo-study
#2
Mitakshra Nirwan, Anant Gopal Nigam, Nikhil Marwah, Ullal Anand Nayak, Aayushi Bansal, Manvendra Singh Gahlot
INTRODUCTION: Dental caries is one of the most common preventable childhood infections. a number of measures are available to prevent occlusal caries; pit and fissure sealants are one of the various methods currently available to cost effectively reduce dental caries. AIM: To evaluate the retention of pit and fissure sealant bonded using sixth (Adper promt), seventh (Optibond) and eighth (Futurabond Dual Cure) generations of adhesives. SETTINGS AND DESIGN: A total of 37 healthy children who fulfilled the inclusion were randomly selected...
October 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28893281/rna-flow-cytometric-fish-for-investigations-into-hiv-immunology-vaccination-and-cure-strategies
#3
REVIEW
Amy E Baxter, Julia Niessl, Antigoni Morou, Daniel E Kaufmann
Despite the tremendous success of anti-retroviral therapy (ART) no current treatment can eradicate latent HIV reservoirs from HIV-infected individuals or generate, effective HIV-specific immunity. Technological limitations have hampered the identification and characterization of both HIV-infected cells and HIV-specific responses in clinical samples directly ex vivo. RNA-flow cytometric fluorescence in situ hybridisation (RNA Flow-FISH) is a powerful technique, which enables detection of mRNAs in conjunction with proteins at a single-cell level...
September 12, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28878119/pharmacologic-hiv-1-nef-blockade-promotes-cd8-t-cell-mediated-elimination-of-latently-hiv-1-infected-cells-in-vitro
#4
Shariq Mujib, Aamir Saiyed, Saleh Fadel, Ardalan Bozorgzad, Nasra Aidarus, Feng Yun Yue, Erika Benko, Colin Kovacs, Lori A Emert-Sedlak, Thomas E Smithgall, Mario A Ostrowski
Eradication of the HIV-1 latent reservoir represents the current paradigm to developing a cure for AIDS. HIV-1 has evolved multiple mechanisms to evade CD8 T cell responses, including HIV-1 Nef-mediated downregulation of MHC-I from the surface of infected cells. Nef transcripts and protein are detectable in samples from aviremic donors, suggesting that Nef expression in latently HIV-1-infected CD4 T cells protects them from immune-mediated clearance. Here, we tested 4 small molecule inhibitors of HIV-1 Nef in an in vitro primary CD4 T cell latency model and measured the ability of autologous ex vivo or HIV-1 peptide-expanded CD8 T cells to recognize and kill latently infected cells as a function of inhibitor treatment...
September 7, 2017: JCI Insight
https://www.readbyqxmd.com/read/28863323/ethyl-pyruvate-reverses-development-of-pseudomonas-aeruginosa-pneumonia-during-sepsis-induced-immunosuppression
#5
Wei Chen, Jie Lian, Jing-Jing Ye, Qing-Fei Mo, Jie Qin, Guang-Liang Hong, Long-Wang Chen, Shao-Ce Zhi, Guang-Ju Zhao, Zhong-Qiu Lu
Sepsis is characterized by an innate immune response and the following immune dysfunction which can increase the emergence of secondary infections. Ethyl pyruvate (EP) has multiple immunoregulation functions in several serious illnesses, such as burn injury, severe sepsis and acute respiratory syndrome. However, little data was shown the effect of EP administration on immunosuppression post-CLP and the following secondary infection. The cecal ligation and puncture (CLP) followed by the induction of Pseudomonas aeruginosa (PA) was used as a clinically relevant two-hit model of sepsis...
August 29, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28851229/the-california-hiv-aids-research-program-history-impact-and-hiv-cure-initiative
#6
Lisa Loeb Stanga, Laura Packel, Tyler Martz, George Lemp
This Special Issue of AIDS Research and Human Retroviruses features results from the HIV Cure Initiative, funded by the California HIV/AIDS Research Program (CHRP). As a publicly-funded grant maker, CHRP has served for more than three decades as a unique resource for innovative researchers in California whose work seeks to address all aspects of the HIV epidemic and the communities affected by it. Early initiatives at CHRP pioneered what would become enduring cornerstones of HIV science: isolation of the virus; efficacy and toxicities of the first HIV treatments; the emergence of drug resistance; the first biospecimen banks for HIV-related research; the first community-based laboratory service for HIV diagnostic serology; and the first population-based longitudinal cohort study of persons living with HIV - The Gay Men's Health Study...
August 29, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28845759/three-and-four-dimensional-spheroid-and-fiss-tumoroid-cultures-platforms-for-drug-discovery-and-development-and-translational-research
#7
R R Nair, S Padhee, T Das, R Green, M Howell, S S Mohapatra, Subhra Mohapatra
There have been remarkable improvements in our understanding of cancer biology. However, therapeutic improvements, with a few exceptions, have been minimal. Also, significant challenges remain in translating fundamental discoveries in cancer biology and genetics into effective drugs and cures. Traditional two-dimensional monolayer cell cultures lack predictive value, resulting in a >90% failure rate of compounds in clinical trials. A developing cancer is a symbiotic tissue consisting of cancer cells, including cancer stem cells (CSCs), and cohabitating with the components of its environment to form a tumor microenvironment (TME) niche...
2017: Critical Reviews in Therapeutic Drug Carrier Systems
https://www.readbyqxmd.com/read/28843873/the-islamification-of-antiretroviral-therapy-reconciling-hiv-treatment-and-religion-in-northern-nigeria
#8
Jack Ume Tocco
Access and adherence to antiretroviral therapy (ART) are essential to HIV treatment success and epidemic control. This article is about how HIV-positive Muslims and providers balance ART with religious tenets and obligations. I conducted 17 months of multi-site ethnographic research between 2007 and 2010, including participant-observation in an urban HIV clinic in Kano, Nigeria and a support group for people living with HIV, as well as in-depth interviews with 30 HIV-positive men and 30 key informants with caregiving, clinical, or policy roles related to HIV/AIDS...
August 18, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28842263/screening-of-an-fda-approved-compound-library-identifies-levosimendan-as-a-novel-anti-hiv-1-agent-that-inhibits-viral-transcription
#9
Tsuyoshi Hayashi, Maxime Jean, Huachao Huang, Sydney Simpson, Netty G Santoso, Jian Zhu
Combination antiretroviral therapy (cART) has been proven to efficiently inhibit ongoing replication of human immunodeficiency virus type 1 (HIV-1), and significantly improve the health outcome in patients of acquired immune deficiency syndrome (AIDS). However, cART is unable to cure HIV-1/AIDS. Even in presence of cART there exists a residual viremia, contributed from the viral reservoirs of latently infected HIV-1 proviruses; this constitutes a major hurdle. Currently, there are multiple strategies aimed at eliminating or permanently silence these HIV-1 latent reservoirs being intensely explored...
August 24, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28839894/polypectomy-and-advanced-endoscopic-resection
#10
REVIEW
Kesavan Kandiah, Sharmila Subramaniam, Pradeep Bhandari
Most colorectal cancers evolve from colorectal adenomatous polyps in a pathway known as the adenoma to carcinoma sequence. Early detection and removal of colorectal adenomas can prevent the development of colorectal cancer. The vast majority of these polyps can be resected endoscopically. Advances in endoscopic resection techniques have led to expanded indications for endoscopic polypectomy, whereby giant polyps, scarred lesions and early cancers may be cured. We will outline conventional endoscopic mucosal resection techniques as well as more complex resection methods such as endoscopic submucosal dissection, full thickness resection and the use of combined endoscopic and laparoscopic assisted approaches to resection...
April 2017: Frontline Gastroenterology
https://www.readbyqxmd.com/read/28838069/genomic-tools-for-the-use-of-nonhuman-primates-in-translational-research
#11
John D Harding
Nonhuman primates (NHPs) are important preclinical models for understanding the etiology of human diseases and for developing therapies and vaccines to cure or eliminate disease. Most human diseases have genetic components. Therefore, to be of maximal utility, the NHP species used for translational science should be as well characterized in regard to their genome and transcriptome as possible. This article reviews the current status of genomic information for the five NHP species used most often in translational research: rhesus macaque, cynomolgus macaque, vervet (African green) monkey, baboon, and marmoset NHP...
July 1, 2017: ILAR Journal
https://www.readbyqxmd.com/read/28832805/clinical-and-epidemiological-profile-of-tuberculosis-in-an-urban-area-with-high-human-development-index-in-southeastern-brazil-time-series-study
#12
Rodolpho Telarolli, Leonor Castro Monteiro Loffredo, Rosangela Maria Gasparetto
CONTEXT AND OBJECTIVE: In the twenty-first century, tuberculosis remains a serious public health problem in Brazil. The aim here was to characterize tuberculosis in a municipality with a high human development index (HDI), based on clinical and epidemiological variables. DESIGN AND SETTING: Epidemiological study with analysis of incidence that included 533 new cases of tuberculosis in the municipality of Araraquara, São Paulo, reported to the Brazilian Notifiable Diseases Information System (SINAN) between 2002 and 2011...
August 21, 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28828350/looking-to-the-metabolic-landscapes-for-prostate-health-monitoring
#13
REVIEW
Wun-Jae Kim, Jayoung Kim
Abnormal metabolism is a widely accepted biological signature of prostatic diseases, including prostate cancer and benign prostate hyperplasia. Recently accumulated epidemiological and experimental evidence illustrate that the metabolic syndrome, impaired mitochondrial function, and prostatic pathological conditions intersect. The perturbed metabolism and metabolic mediates influence key signaling pathways in various prostatic pathological conditions. This short review article aids to highlight recent findings on metabolism, metabolic mechanisms, and mitochondrial metabolism as a possible route to finding a cure for prostate diseases, including prostate cancer...
September 2017: Prostate International
https://www.readbyqxmd.com/read/28820749/surgical-pathology-of-gastrointestinal-stromal-tumors-practical-implications-of-morphologic-and-molecular-heterogeneity-for-precision-medicine
#14
Gregory W Charville, Teri A Longacre
Gastrointestinal stromal tumor (GIST), the most common mesenchymal neoplasm of the gastrointestinal tract, exhibits diverse histologic and clinical manifestations. With its putative origin in the gastrointestinal pacemaker cell of Cajal, GIST can arise in association with any portion of the tubular gastrointestinal tract. Morphologically, GISTs are classified as spindled or epithelioid, though each of these subtypes encompasses a broad spectrum of microscopic appearances, many of which mimic other histologic entities...
August 17, 2017: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/28811349/brain-macrophages-in-simian-immunodeficiency-virus-infected-antiretroviral-suppressed-macaques-a-functional-latent-reservoir
#15
Claudia R Avalos, Celina M Abreu, Suzanne E Queen, Ming Li, Sarah Price, Erin N Shirk, Elizabeth L Engle, Ellen Forsyth, Brandon T Bullock, Feilim Mac Gabhann, Stephen W Wietgrefe, Ashley T Haase, M Christine Zink, Joseph L Mankowski, Janice E Clements, Lucio Gama
A human immunodeficiency virus (HIV) infection cure requires an understanding of the cellular and anatomical sites harboring virus that contribute to viral rebound upon treatment interruption. Despite antiretroviral therapy (ART), HIV-associated neurocognitive disorders (HAND) are reported in HIV-infected individuals on ART. Biomarkers for macrophage activation and neuronal damage in cerebrospinal fluid (CSF) of HIV-infected individuals demonstrate continued effects of HIV in brain and suggest that the central nervous system (CNS) may serve as a viral reservoir...
August 15, 2017: MBio
https://www.readbyqxmd.com/read/28810590/diagnosis-and-surgical-treatment-of-cervical-macrocystic-lymphatic-malformations-in-infants
#16
Jing Ma, Ruan Biao, Fan Lou, Ken Lin, Ying-Qin Gao, Mei-Lan Wang, Yan-Li Yang, Tie-Song Zhang
The treatment of lymphatic malformations (LMs) represents a great clinical challenge. The present study reported on the treatment of 68 infants with cervical macrocystic LMs using surgical resection. The cases were retrospectively analyzed. All patients underwent pre-operative ultrasonography, computed tomography (CT), and magnetic resonance imaging (MRI) examinations. The surgery was performed under general anesthesia with endotracheal intubation. Ultrasonograms showed that 24 cases were monolocular, 44 were multilocular, 16 had no echo, 20 had a uniform low-level echo and 32 had a non-uniform low-level echo...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28806949/case-report-of-ocular-kaposi-s-sarcoma
#17
Jing Yang, Xiao-Fang Yin, Yong-Ping Li, Shi-You Zhou
BACKGROUND: Kaposi's sarcoma (KS) is generally considered a neoplastic disorder of vascular origin and occurs in patients with acquired immunodeficiency syndrome (AIDS) or who have received immunosuppressive treatments after an organ transplant (Soulier et al., Blood 86(4):1276-80, 1995; Viejo-Borbolla and Schulz, AIDS Rev 5(4):222-9, 2003; Schulz, J Antimicrob Chemother 45(Suppl T3):15-27, 2000; Aversa et al. Crit Rev Oncol Hematol 53(3):253-65, 2005; Mbulaiteye and Engels, Int J Cancer 119(11):2685-91, 2006; Tessari et al...
August 14, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28803710/intrathecal-2-hydroxypropyl-%C3%AE-cyclodextrin-decreases-neurological-disease-progression-in-niemann-pick-disease-type-c1-a-non-randomised-open-label-phase-1-2-trial
#18
Daniel S Ory, Elizabeth A Ottinger, Nicole Yanjanin Farhat, Kelly A King, Xuntian Jiang, Lisa Weissfeld, Elizabeth Berry-Kravis, Cristin D Davidson, Simona Bianconi, Lee Ann Keener, Ravichandran Rao, Ariane Soldatos, Rohini Sidhu, Kimberly A Walters, Xin Xu, Audrey Thurm, Beth Solomon, William J Pavan, Bernardus N Machielse, Mark Kao, Steven A Silber, John C McKew, Carmen C Brewer, Charles H Vite, Steven U Walkley, Christopher P Austin, Forbes D Porter
BACKGROUND: Niemann-Pick disease, type C1 (NPC1) is a lysosomal storage disorder characterised by progressive neurodegeneration. In preclinical testing, 2-hydroxypropyl-β-cyclodextrins (HPβCD) significantly delayed cerebellar Purkinje cell loss, slowed progression of neurological manifestations, and increased lifespan in mouse and cat models of NPC1. The aim of this study was to assess the safety and efficacy of lumbar intrathecal HPβCD. METHODS: In this open-label, dose-escalation phase 1-2a study, we gave monthly intrathecal HPβCD to participants with NPC1 with neurological manifestation at the National Institutes of Health (NIH), Bethesda, MD, USA...
August 10, 2017: Lancet
https://www.readbyqxmd.com/read/28795398/robust-fluorescent-labelling-of-micropipettes-for-use-in-fluorescence-microscopy-application-to-the-observation-of-a-mosquito-borne-parasite-infection
#19
Amanda E Balaban, Keir Neuman, Photini Sinnis, Robert S Balaban
The ability to monitor micropipette injections with a high-resolution fluorescent microscope has utility for a variety of applications. Herein, different approaches were tested for creating broad-band fluorescently labelled glass micropipettes including: UV cured glass glues, baked glass enamel containing fluorescent dyes as well as nanodiamonds attached during pipette formation in the microforge. The most robust and simplest approach was to use labelled baked enamel on the exterior of the pipette. This approach was tested using pipettes designed to mimic a mosquito proboscis for the injection of the malaria parasite, Plasmodium spp...
August 10, 2017: Journal of Microscopy
https://www.readbyqxmd.com/read/28782747/laparoscopic-surgery-for-solitary-insulinoma-in-the-absence-of-ious
#20
Abhay Narendra Dalvi, Mahadeo Namdeo Garale, Yogesh Prabhakar Takalkar, Sameer Ashok Rege, Pinky Manoharlal Thapar, Lila Anurag, Nalini Samir Shah
BACKGROUND: Insulinomas are the most common pancreatic neuroendocrine neoplasms. In spite of adequate pre-operative localisation, conventional surgical methods rely on intraoperative palpation. Intraoperative ultrasonography (IOUS) is said to aid in accurate localisation, decreases morbidity. Laparoscopic removal of pancreatic endocrine neoplasms is beneficial due to magnification and minimal invasion; however, in the absence of IOUS, error of judgement may lead to conversion to open surgery, thereby relying on 'palpation method' to localise the tumour...
August 1, 2017: Journal of Minimal Access Surgery
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