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https://www.readbyqxmd.com/read/28647490/sex-biased-eicosanoid-biology-impact-for-sex-differences-in-inflammation-and-consequences-for-pharmacotherapy
#1
REVIEW
Simona Pace, Lidia Sautebin, Oliver Werz
The incidence, severity and progression of autoimmune diseases (e.g. scleroderma, multiple sclerosis, rheumatoid arthritis) and certain inflammatory diseases (e.g. asthma) are sex-biased where these pathologies dominate in women. However, other immune disorders such as sepsis, post-surgery infections and gout display higher incidence and severity in men. The molecular and cellular basis underlying this sex dimorphism remains incompletely elucidated but may provide important insights for sex-specific pharmacotherapy...
June 21, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28647406/unstable-angina-in-the-era-of-cardiac-troponin-assays-with-improved-sensitivity-a-clinical-dilemma
#2
K M Eggers, T Jernberg, B Lindahl
INTRODUCTION: There is an expectation that with the adoption of more sensitive cardiac troponin (cTn) assays, unstable angina would become a rarity. However, recent data from the SWEDEHEART registry demonstrated that 15% of patients admitted with non ST-elevation acute coronary syndrome (NSTE-ACS) still were regarded having unstable angina. We aimed to further investigate the clinical characteristics and outcome of these patients. METHODS: Retrospective registry-based analysis (SWEDEHEART) including 3204 unstable patients, 18,194 non ST-elevation myocardial infarction (NSTEMI) patients and 977 controls without acute cardiovascular disease...
June 21, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28647066/large-scale-evaluation-of-a-rapid-diagnostic-test-for-human-cystic-echinococcosis
#3
Alice Baraquin, Houria Zait, Florence-Elisabeth Grenouillet, Elise Moreau, Boussad Hamrioui, Frédéric Grenouillet
Cystic echinococcosis (CE) is a neglected zoonotic disease, diagnosed through clinical findings, imaging techniques, and serology, for which many serological tests are available. Here we report a rapid unit assay, the immunochromatographic VIRapid® HYDATIDOSIS test (Vircell, Granada, Spain), potentially suitable for laboratories in low-prevalence or poorly equipped areas. This test was evaluated with a large retrospective cohort (224 sera), including patients suffering from CE or from other parasitic or liver diseases...
June 10, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28643460/periodic-limb-movement-in-sleep-and-sickle-cell-disease-a-neglected-association
#4
Ana C Cabañas-Pedro, Suely Roizenblatt, Altay A L de Souza, Sérgio Tufik, Maria S Figueiredo
High frequency of periodic limb movements in sleep (PLMS) has been described among children with sickle cell disease (SCD), but there is little information about PLMS among adults with SCD. We aim to determine the frequency of PLMS among adults with SCD and to identify possible associations with iron status and haemolytic parameters. We analysed polysomnography on 99 adults: 74 with sickle cell anaemia (HbSS), 19 with HbSC (double heterozygosis HbS and HbC) and 6 with HbS-beta thalassaemia. Laboratory data were collected close to the time of the polysomnography examination...
June 23, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28642692/beyond-neuronal-activity-markers-select-immediate-early-genes-in-striatal-neuron-subtypes-functionally-mediate-psychostimulant-addiction
#5
REVIEW
Ramesh Chandra, Mary Kay Lobo
Immediate early genes (IEGs) were traditionally used as markers of neuronal activity in striatum in response to stimuli including drugs of abuse such as psychostimulants. Early studies using these neuronal activity markers led to important insights in striatal neuron subtype responsiveness to psychostimulants. Such studies have helped identify striatum as a critical brain center for motivational, reinforcement and habitual behaviors in psychostimulant addiction. While the use of IEGs as neuronal activity markers in response to psychostimulants and other stimuli persists today, the functional role and implications of these IEGs has often been neglected...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28641918/resistance-of-mice-to-leptospira-infection-and-correlation-with-chemokine-response
#6
R H Domingos, E B Pavanel, E Nakajima, L Schons-Fonseca, R M A Da Costa, M De Franco, E Carvalho, P L Ho, E A Martins, J B Da Silva
Leptospirosis is globally widespread neglected disease, affecting most mammalian species. Clinical signs can be confused with other diseases which make the diagnosis and treatment difficult. Chemokines and cytokines are known for their role in the inflammatory and immune response to infections. The profile determination of chemokines' expressions in the course of infection may elucidate the defense mechanisms of the host and support the search for effective treatment strategies. We investigated the mechanisms of innate immunity through the comparison of chemokines induced during infection with L...
May 26, 2017: Immunobiology
https://www.readbyqxmd.com/read/28640563/-smoking-vaping-and-cardiovascular-risk-an-update
#7
Sofia Dalkou, Carole Clair
It is well known that tobacco smoking increases cardiovascular (CV) mortality and morbidity, however, smoking cessation is often neglected compared to other CV risk factors. Behavioral counseling as well as smoking cessation treatments are efficient and do not increase the risk of CV events when used for a defined duration. Electronic nicotine delivery systems (ENDS) contain potentially cardiotoxic substances but in lower concentrations than in cigarettes. The CV effect of ENDS is to date difficult to assess and depends on the type of device used and its mode of consumption...
June 7, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28637533/everybody-needs-sphingolipids-right-mining-for-new-drug-targets-in-protozoan-sphingolipid-biosynthesis
#8
John G M Mina, P W Denny
Sphingolipids (SLs) are an integral part of all eukaryotic cellular membranes. In addition, they have indispensable functions as signalling molecules controlling a myriad of cellular events. Disruption of either the de novo synthesis or the degradation pathways has been shown to have detrimental effects. The earlier identification of selective inhibitors of fungal SL biosynthesis promised potent broad-spectrum anti-fungal agents, which later encouraged testing some of those agents against protozoan parasites...
June 22, 2017: Parasitology
https://www.readbyqxmd.com/read/28637503/expression-of-endogenous-mouse-app-modulates-%C3%AE-amyloid-deposition-in-happ-transgenic-mice
#9
Johannes Steffen, Markus Krohn, Christina Schwitlick, Thomas Brüning, Kristin Paarmann, Claus U Pietrzik, Henrik Biverstål, Baiba Jansone, Oliver Langer, Jens Pahnke
Amyloid-β (Aβ) deposition is one of the hallmarks of the amyloid hypothesis in Alzheimer's disease (AD). Mouse models using APP-transgene overexpression to generate amyloid plaques have shown to model only certain parts of the disease. The extent to which the data from mice can be transferred to man remains controversial. Several studies have shown convincing treatment results in reducing Aβ and enhancing cognition in mice but failed totally in human. One model-dependent factor has so far been almost completely neglected: the endogenous expression of mouse APP and its effects on the transgenic models and the readout for therapeutic approaches...
June 20, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28637488/a-high-throughput-colorimetric-assay-for-detection-of-schistosoma-mansoni-viability-based-on-the-tetrazolium-salt-xtt
#10
Pedro Henrique Nascimento Aguiar, Núbia Monteiro Gonçalves Soares Fernandes, Carlos Leomar Zani, Marina Moraes Mourão
BACKGROUND: Schistosoma mansoni is a trematode parasite that causes schistosomiasis, one of the most prevalent neglected tropical diseases, leading to the loss of 2.6 million disability-adjusted life years. Praziquantel is the only drug available, and new drugs are required. The most common strategy in schistosomiasis drug discovery is the use of the schistosomula larval-stage for a pre-screen in drug sensitivity assays. However, assessing schistosomula viability by microscopy has always been a limitation to the throughput of such assays...
June 21, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28636445/developing-a-casper-survey-to-assess-the-prevalence-of-risk-factors-for-neglected-tropical-diseases-in-texas
#11
Seth Smitherman, Tracy Hammond, Daniel Goldberg, Jennifer Horney
While more than a billion people live at risk of neglected tropical diseases in areas of Asia, sub-Saharan Africa, and Latin America, the degree to which such diseases burden countries like the United States is currently unclear. Even though many neglected tropical diseases such as dengue, leishmaniasis, and Chagas disease are not endemic to the United States, the possibility of their emergence is noteworthy, especially in states like Texas, which has high levels of poverty, a large immigrant population, and a climate amenable to the vectors for these diseases and is geographically proximate to endemic areas...
May 2017: Health Security
https://www.readbyqxmd.com/read/28631489/an-update-on-the-recognition-and-treatment-of-autonomic-symptoms-in-parkinson-s-disease
#12
Wolfgang H Jost
Parkinson's disease (PD) is characterized by motor, autonomic, and neuropsychiatric symptoms. These occur in varying degrees in all stages of the disease. Among the autonomic disorders, cardiovascular, urogenital, gastrointestinal and thermoregulatory disorders are the most relevant. Within cardiovascular disorders drop of blood pressure after orthostasis and non-dipper behavior are very important; but also the influence of cardiovascular medication. Urgency, nocturia, and incontinence are of particular note within the urological problems...
June 20, 2017: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/28630463/the-role-of-antibody-v%C3%AE%C2%BA-framework-3-region-towards-antigen-binding-effects-on-recombinant-production-and-protein-l-binding
#13
Chinh Tran-To Su, Wei-Li Ling, Wai-Heng Lua, Jun-Jie Poh, Samuel Ken-En Gan
Antibody research has traditionally focused on heavy chains, often neglecting the important complementary role of light chains in antibody formation and secretion. In the light chain, the complementarity-determining region 3 (VL-CDR3) is specifically implicated in disease states. By modulating VL-CDR3 exposure on the scaffold through deletions in the framework region 3 (VL-FWR3), we further investigated the effects on secretion in recombinant production and antigen binding kinetics. Our random deletions of two residues in the VL-FWR3 of a Trastuzumab model showed that the single deletions could impact recombinant production without significant effect on Her2 binding...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28630200/treatment-of-experimental-visceral-leishmaniasis-with-single-dose-liposomal-amphotericin-b-pharmacodynamics-and-biodistribution-at-different-stages-of-disease
#14
Andrew A Voak, Andy Harris, Zeeshan Qaiser, Simon L Croft, Karin Seifert
Visceral leishmaniasis is a neglected tropical disease, which causes significant morbidity and mortality worldwide. Characterising the pharmacokinetics and pharmacodynamics of anti-leishmanial drugs in pre-clinical models is important for drug development and use. Here we investigated the pharmacodynamics and drug distribution of AmBisome® in L. donovani infected BALB/c mice at three different dose levels and two different time points after infection. We additionally compared drug levels in plasma, liver and spleen in infected and uninfected BALB/c mice over time...
June 19, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28630127/deciphering-function-of-new-gonococcal-vaccine-antigens-using-phenotypic-microarrays
#15
Benjamin I Baarda, Sarah Emerson, Philip J Proteau, Aleksandra E Sikora
The function and extracellular location of cell envelope proteins make them attractive candidates for developing vaccines against bacterial diseases, including challenging, drug-resistant pathogens such as Neisseria gonorrhoeae Proteomics-driven reverse vaccinology delivered multiple gonorrhea vaccine candidates; however, the biological functions of many of them remain to be elucidated. Herein, the functions of six gonorrhea vaccine candidates - NGO2121, NGO1985, NGO2054, NGO2111, NGO1205, and NGO1344 - in cell envelope homeostasis were probed using phenotype microarrays with 1,056 conditions and a ΔbamE mutant (Δngo1780) as a reference of perturbed outer membrane integrity...
June 19, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28629155/repositioning-fda-drugs-as-potential-cruzain-inhibitors-from-trypanosoma-cruzi-virtual-screening-in-vitro-and-in-vivo-studies
#16
Isidro Palos, Edgar E Lara-Ramirez, Julio Cesar Lopez-Cedillo, Carlos Garcia-Perez, Muhammad Kashif, Virgilio Bocanegra-Garcia, Benjamin Nogueda-Torres, Gildardo Rivera
Chagas disease (CD) is a neglected disease caused by the parasite Trypanosoma cruzi, which affects underdeveloped countries. The current drugs of choice are nifurtimox and benznidazole, but both have severe adverse effects and less effectivity in chronic infections; therefore, the need to discover new drugs is essential. A computer-guided drug repositioning method was applied to identify potential FDA drugs (approved and withdrawn) as cruzain (Cz) inhibitors and trypanocidal effects were confirmed by in vitro and in vivo studies...
June 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28626451/dependency-of-b-1-cells-in-the-maintenance-of-splenic-interleukin-10-producing-cells-and-impairment-of-macrophage-resistance-in-visceral-leishmaniasis
#17
Angélica Fernandes Arcanjo, Dirlei Nico, Gabriellen Menezes Migliani de Castro, Yasmin da Silva Fontes, Paula Saltarelli, Debora Decote-Ricardo, Marise P Nunes, Antônio Ferreira-Pereira, Clarisa B Palatnik-de-Sousa, Célio G Freire-de-Lima, Alexandre Morrot
Visceral leishmaniasis is a neglected disease caused by Leishmania protozoa parasites transmitted by infected sand fly vectors. This disease represents the second in mortality among tropical infections and is associated to a profound immunosuppression state of the host. The hallmark of this infection-induced host immunodeviation is the characteristic high levels of the regulatory interleukin-10 (IL-10) cytokine. In the present study, we investigated the role of B-1 cells in the maintenance of splenic IL-10 levels that could interfere with resistance to parasite infection...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28625102/spatiotemporal-meta-analysis-reviewing-health-psychology-phenomena-over-space-and-time
#18
Blair T Johnson, Ellen K Cromley, Natasza Marrouch
Individual studies of health psychology are samples taken in particular places at particular times. The results of such studies manifest multiple processes, including those associated with individual, sample, intervention, and study design characteristics. Although extant meta-analyses of health phenomena have routinely considered these factors to explain heterogeneity, they have tended to neglect the environments where studies are conducted, which is ironic, as health phenomena cluster in space and times (e...
June 18, 2017: Health Psychology Review
https://www.readbyqxmd.com/read/28622437/detection-of-halitosis-in-breath-between-the-past-present-and-future
#19
Morad K Nakhleh, Marceau Quatredeniers, Hossam Haick
In order to develop a new generation of diagnostics for halitosis, replacing the subjective organoleptic assessment, a series of exhaled breath analyzers has been developed and assessed. All three devices rely on the assessment of exhaled Volatile Sulfuric Compounds (VSCs), which are mainly generated in and emitted from the oral cavity, contributing to the malodor. Portable, on-site and easy to use, these devices have potential for non-invasive diagnosis of halitosis. However, global assessment of exhaled VSCs alone has two main drawbacks: (1) the absence of VCSs does not rule out halitosis; (2) non-sulfuric volatile compounds that could be biomarkers of systemic diseases, found in up to 15% of halitosis cases, are neglected...
June 16, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28622332/comparison-of-monocyte-gene-expression-among-patients-with-neurocysticercosis-associated-epilepsy-idiopathic-epilepsy-and-idiopathic-headaches-in-india
#20
Vasudevan Prabhakaran, Douglas A Drevets, Govindan Ramajayam, Josephine J Manoj, Michael P Anderson, Jay S Hanas, Vedantam Rajshekhar, Anna Oommen, Hélène Carabin
BACKGROUND: Neurocysticercosis (NCC), a neglected tropical disease, inflicts substantial health and economic costs on people living in endemic areas such as India. Nevertheless, accurate diagnosis using brain imaging remains poorly accessible and too costly in endemic countries. The goal of this study was to test if blood monocyte gene expression could distinguish patients with NCC-associated epilepsy, from NCC-negative imaging lesion-free patients presenting with idiopathic epilepsy or idiopathic headaches...
June 16, 2017: PLoS Neglected Tropical Diseases
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