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https://www.readbyqxmd.com/read/28214992/data-mining-in-hiv-aids-surveillance-system-application-to-portuguese-data
#1
Alexandra Oliveira, Brígida Mónica Faria, A Rita Gaio, Luís Paulo Reis
The Human Immunodeficiency Virus (HIV) is an infectious agent that attacks the immune system cells. Without a strong immune system, the body becomes very susceptible to serious life threatening opportunistic diseases. In spite of the great progresses on medication and prevention over the last years, HIV infection continues to be a major global public health issue, having claimed more than 36 million lives over the last 35 years since the recognition of the disease. Monitoring, through registries, of HIV-AIDS cases is vital to assess general health care needs and to support long-term health-policy control planning...
April 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28214184/-systemic-lupus-erythematosus-and-lymphopenia-clinical-and-pathophysiological-features
#2
M Martin, A Guffroy, X Argemi, T Martin
Lymphopenia is frequent in systemic lupus erythematosus (SLE) and profound (<500/mm(3)) in 10% of cases. T lymphocytes, especially CD4+, are more affected than B cells. The pathophysiological mechanisms are complex, involving lymphocytotoxic antibodies, excess of apoptosis, increased susceptibility of T cells to complement mediated cytolysis, as well as lymphopoiesis impairment and lymphocyte sequestration. Lymphopenia in SLE is independent from other cytopenia and immunosuppressive drug regiments, and associated with disease activity, risk of flare and damage scores...
February 14, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28214100/nlrp6-a-multifaceted-innate-immune-sensor
#3
REVIEW
Maayan Levy, Hagit Shapiro, Christoph A Thaiss, Eran Elinav
NLRP6, a member of the nucleotide-binding domain, leucine-rich repeat-containing (NLR) innate immune receptor family, regulates inflammation and host defense against microorganisms. Similar to other NLRs, NLRP6 not only participates in inflammasome formation, but is also involved in nuclear factor-κB (NF-κB) and mitogen-activated protein kinase (MAPK) signaling regulation and facilitation of gastrointestinal antiviral effector functions. Additionally, NLRP6 contributes to the regulation of mucus secretion and antimicrobial peptide production, thereby impacting intestinal microbial colonization and associated microbiome-related infectious, autoinflammatory, metabolic, and neoplastic diseases...
February 14, 2017: Trends in Immunology
https://www.readbyqxmd.com/read/28213891/opioids-and-the-immune-system-friend-or-foe
#4
REVIEW
Lisanne Mirja Plein, Heike L Rittner
Systemically administered opioids are among the most powerful analgesics for treating severe pain. Several negative side-effects (respiratory depression, addiction, nausea, confusion) and the risk of opioid-induced hyperalgesia accompany opioid administration. One other side effect is the potential of opioids to suppress the immune response and thereby to increase the vulnerability for infections. Several studies have investigated the link between opioids and immunosuppression in vitro, in vivo as well as in patients with divergent results: Exogenous opioids such as morphine and fentanyl can impair macrophage and natural killer cell as well as T cell function and weaken the gut barrier in vitro and in animal studies...
February 18, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28209987/targeting-phospholipase-d-in-cancer-infection-and-neurodegenerative-disorders
#5
REVIEW
H Alex Brown, Paul G Thomas, Craig W Lindsley
Lipid second messengers have essential roles in cellular function and contribute to the molecular mechanisms that underlie inflammation, malignant transformation, invasiveness, neurodegenerative disorders, and infectious and other pathophysiological processes. The phospholipase D (PLD) isoenzymes PLD1 and PLD2 are one of the major sources of signal-activated phosphatidic acid (PtdOH) generation downstream of a variety of cell-surface receptors, including G protein-coupled receptors (GPCRs), receptor tyrosine kinases (RTKs) and integrins...
February 17, 2017: Nature Reviews. Drug Discovery
https://www.readbyqxmd.com/read/28209551/sero-prevalence-risk-factors-and-distribution-of-foot-and-mouth-disease-in-ethiopia
#6
REVIEW
Nejash Abdela
Foot and mouth disease (FMD), world's most important highly infectious and contagious trans-boundary animal diseases, is responsible for huge global losses of livestock production as well as severe impacts on international trade. This vesicular disease is caused by foot and mouth disease virus of the genus Aphthovirus, family Picornaviridae. Currently FMD is major global animal health problem and endemic in Africa including Ethiopia. This paper systematically reviewed the sero-prevalence reports, associated risk factors and distribution of FMD in Ethiopia with the main aim of making compressive document on prevalence, risk factor and distribution of the disease thus helping as a basis for designing effective control strategies...
February 14, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28208753/possible-impact-of-190g-a-ccr2-and-%C3%AE-32-ccr5-mutations-on-decrease-of-the-hbv-vaccine-immunogenicity-a-preliminary-report
#7
Maria Ganczak, Karolina Skonieczna-Żydecka, Marzena Drozd-Dąbrowska, Grażyna Adler
Background: Chemokine genetic variations are involved in infectious diseases such as hepatitis B virus (HBV). Several allelic variants might, in theory, affect the outcome of vaccination. Objectives: This study was carried out to examine the associations of Δ32 CCR5 and 190G > A CCR2 polymorphisms with a response to a primary course of three HBV vaccinations. Methods: Between December 2014 and December 2016, patients from three randomly selected primary care clinics in the West Pomeranian region (Poland), 1 month after receiving the third dose of HBV vaccine, were enrolled...
February 8, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28207512/incidence-and-risk-factors-of-acute-kidney-injury-associated-with-continuous-intravenous-high-dose-vancomycin-in-critically-ill-patients-a-retrospective-cohort-study
#8
Guillaume Lacave, Vincent Caille, Fabrice Bruneel, Catherine Palette, Stéphane Legriel, David Grimaldi, Mathilde Eurin, Jean-Pierre Bedos
For vancomycin therapy of severe infections, the Infectious Diseases Society of America recommends high vancomycin trough levels, whose potential for inducing nephrotoxicity is controversial. We evaluated the incidence and risk factors of acute kidney injury (AKI) in critically ill patients given continuous intravenous vancomycin with target serum vancomycin levels of 20 to 30 mg/L.We retrospectively studied 107 continuous intravenous vancomycin treatments of ≥48 hours' duration with at least 2 serum vancomycin levels ≥20 mg/L in critically ill patients...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28204830/monoclonal-antibody-against-toll-like-receptor%C3%A2-4-attenuates-ventilator-induced-lung-injury-in-rats-by-inhibiting-myd88-and-nf-%C3%AE%C2%BAb-dependent-signaling
#9
Cuiyuan Huang, Linghui Pan, Fei Lin, Huijun Dai, Ruili Fu
The mechanisms through which mechanical ventilation causes non-infectious inflammatory diseases and lung injury are poorly understood. Animals models of this type of injury suggest that it involves signaling mediated by Toll‑like receptor (TLR)4 and 9. In this study, in order to gain further insight into the involvement of TLR4 in this type of injury, we performed in vivo and in vitro experiments to determine the mechanisms through which TLR4 triggers inflammation. We also examined whether the use of TLR4 monoclonal antibody (mAb) can alleviate this type of injury...
March 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28203411/development-of-a-non-infectious-rat-model-of-acute-exacerbation-of-idiopathic-pulmonary-fibrosis
#10
Shan-Shan Chen, Zhao-Fang Yin, Tao Chen, Hui Qiu, Ya-Ru Wei, Shan-Shan Du, Yue-Ping Jin, Meng-Meng Zhao, Qin Wu, Dong Weng, Hui-Ping Li
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a chronic progressive interstitial lung disease with severe pulmonary fibrosis. The main cause of IPF-associated death is acute exacerbation of IPF (AE-IPF). This study aims to develop a rat model of AE-IPF by two intratracheal perfusions with bleomycin (BLM). METHODS: Ninety male Sprague Dawley (SD) rats were randomized into three groups: an AE-IPF model group (BLM + BLM group), an IPF model group (BLM group), and a normal control group...
January 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28203237/activation-of-the-wnt-pathway-by-mycobacterium-tuberculosis-a-wnt-wnt-situation
#11
REVIEW
Tomás Villaseñor, Edgardo Madrid-Paulino, Rafael Maldonado-Bravo, Antonio Urbán-Aragón, Leonor Pérez-Martínez, Gustavo Pedraza-Alva
Mycobacterium tuberculosis (M. tuberculosis), an intracellular pathogenic Gram-positive bacterium, is the cause of tuberculosis (TB), a major worldwide human infectious disease. The innate immune system is the first host defense against M. tuberculosis. The recognition of this pathogen is mediated by several classes of pattern recognition receptors expressed on the host innate immune cells, including Toll-like receptors, Nod-like receptors, and C-type lectin receptors like Dectin-1, the Mannose receptor, and DC-SIGN...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28202752/human-herpesvirus-6a-hhv-6a-exhibits-restrictive-propagation-with-limited-activation-of-pkr-eif2%C3%AE-stress-pathway
#12
Eyal Sharon, Niza Frenkel
The eIF2α protein plays a critical role in the regulation of translation. The production of dsRNA during viral replication can activate protein kinase R (PKR) which phosphorylates the eIF2α, leading to inhibition of the initial step of translation. Many viruses have evolved gene products targeting PKR-eIF2a pathway, indicating its importance in antiviral defense. In the present study we focus on alternations of PKR-eIF2a pathway along HHV-6A infection while monitoring viral gene expression and infectious viral yields...
February 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28202416/microarray-analysis-of-macrophage-response-to-infection-with-streptococcus-oralis-reveals-the-immunosuppressive-effect-of-hydrogen-peroxide
#13
Hitomi Matsushima, Yutaro Kumagai, Alexis Vandenbon, Hideo Kataoka, Miki Kadena, Haruka Fukamachi, Takafumi Arimoto, Hirobumi Morisaki, Nagatoshi Fujiwara, Nobuo Okahashi, Hirotaka Kuwata
Oral streptococci including mitis group streptococci are commensal residents and are also the first to colonize the oral cavity. However, various species of these oral streptococci have the potential to invade the host and occasionally lead to severe infectious disease such as cardiovascular diseases. Oral streptococci have close interactions with the host immune system including macrophages at the oral mucosal surface. One notable common trait of oral streptococcus including Streptococcus oralis (S. oralis) is the production of hydrogen peroxide (H2O2)...
February 12, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28198727/new-guidelines-for-nosocomial-pneumonia
#14
Mark L Metersky, Andre C Kalil
PURPOSE OF REVIEW: Hospital-acquired pneumonia (HAP) and ventilator-associated pneumonia (VAP) remain important causes of morbidity and mortality in hospitalized patients. New evidence-based guidelines for the diagnosis and treatment of these entities were released by the Infectious Diseases Society of America and the American Thoracic Society in 2016. This review summarizes the recommendations contained within these guidelines and their supporting rationale. RECENT FINDINGS: With respect to diagnosis of HAP and VAP, the guidelines suggest using semiquantitative cultures of noninvasively obtained respiratory samples instead of quantitative cultures of invasively obtained samples...
February 13, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/28197140/molecular-characteristics-of-carbapenem-resistant-enterobacter-cloacae-in-ningxia-province-china
#15
Zhiyun Shi, Huizheng Zhao, Gang Li, Wei Jia
The emergence of carbapenem-resistant Enterobacteriaceae (CRE) has become a major public health concern worldwide and a new challenge in the treatment of infectious diseases. The molecular characteristics of Enterobacter cloacae in Ningxia China are unknown. In this study, we reported 10 carbapenem-resistant E. cloacae isolates from the General Hospital of Ningxia Medical University, the largest university hospital in Ningxia between January 2012 and December 2013. Bacteria isolates were identified by Vitek2 compact and the identity of non-duplicate E...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28196878/global-characterization-of-protein-secretion-from-human-macrophages-following-non-canonical-caspase-4-5-inflammasome-activation
#16
Martina B Lorey, Katariina Rossi, Kari K Eklund, Tuula A Nyman, Sampsa Matikainen
Gram-negative bacteria are associated with a wide spectrum of infectious diseases in humans. Inflammasomes are cytosolic protein complexes that are assembled when the cell encounters pathogens or other harmful agents. The non-canonical caspase-4/5 inflammasome is activated by gram-negative bacteria-derived lipopolysaccharide (LPS) and by endogenous oxidized phospholipids. Protein secretion is a critical component of the innate immune response. Here we have used label-free quantitative proteomics to characterize global protein secretion in response to non-canonical inflammasome activation upon intracellular LPS recognition in human primary macrophages...
February 14, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28195249/building-blocks-of-the-gipu-italian-group-of-ultrastructural-pathology
#17
V Papa, R Costa, G Cenacchi
The Italian Group of Ultrastructural Pathology, GIPU, is a scientific organization committed to promote the art and science of Electron Microscopy (EM) in the pathology field in Italy, sharing its professional work with a public audience. The history of the GIPU goes back to 1990s when a founder group set up the Italian Group of Ultrastructural Diagnostic (GIDU) in Milan. The central focus of annual meetings was on EM, transmission and scanning one, about interesting cases in which it was instrumental in diagnosis...
June 2016: Pathologica
https://www.readbyqxmd.com/read/28195061/overview-of-the-preclinical-pharmacological-properties-of-nigella-sativa-black-seeds-a-complementary-drug-with-historical-and-clinical-significance
#18
E Z Dajani, T G Shahwan, N E Dajani
Nigella sativa (N. sativa, black seeds; or sometimes known by many other names such as the blessed seed by the Arabs, black cumin in the Holy Bible, black caraway and Kalonji in South Asia) has been traditionally used for many years not only as a food but also as complementary drug. It is the objective of this communication to review the evidence-based pre-clinical pharmacological actions of N. sativa as a basis of its existing and potential new human clinical uses. Primary PubMed literature searches and secondary Medline searches were conducted to define N...
December 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28195033/techniques-for-nonterminal-blood-sampling-in-black-tailed-prairie-dogs-cynomys-ludovicianus
#19
Valerie Head David Eshar And Melissa R Nau
Black-tailed prairie dogs (Cynomys ludovicianus) are used as an animal model for research on gallbladder stones and several infectious diseases. A comprehensive, instructive resource regarding the appropriate techniques for venipuncture and collection of nonterminal blood samples in this species has not yet been published. Blood samples (1 mL or larger) were readily obtained from the jugular vein, femoral vein, or cranial vena cava, whereas peripheral sites, such as the cephalic vein, saphenous vein, and tarsal vein, mainly were useful for obtaining smaller volumes...
February 13, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28193199/a-population-based-study-of-chronic-hepatitis-c-in-immigrants-and-non-immigrants-in-quebec-canada
#20
Christina Greenaway, Laurent Azoulay, Robert Allard, Joseph Cox, Viet Anh Tran, Claire Nour Abou Chakra, Russ Steele, Marina Klein
BACKGROUND: Immigrants originating from intermediate and high HCV prevalence countries may be at increased risk of exposure to hepatitis C infection (HCV) in their countries of origin, however they are not routinely screened after arrival in most low HCV prevalence host countries. We aimed to describe the epidemiology of HCV in immigrants compared to the Canadian born population. METHODS: Using the reportable infectious disease database linked to the landed immigration database and several provincial administrative databases, we assembled a cohort of all reported cases of HCV in Quebec, Canada (1998-2008)...
February 13, 2017: BMC Infectious Diseases
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