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https://www.readbyqxmd.com/read/28736624/lyme-and-dopaminergic-function-hypothesizing-reduced-reward-deficiency-symptomatology-by-regulating-dopamine-transmission
#1
Kenneth Blum, Edward J Modestino, Marcelo Febo, Bruce Steinberg, Thomas McLaughlin, Lyle Fried, David Baron, David Siwicki, Rajendra D Badgaiyan
The principal vector of Lyme disease in the United States is Ixodes scapularis: black legged or deer ticks. There is increased evidence that those infected may be plagued by anxiety or depression as well. Researchers have identified transcripts coding for two putative cytosolic sulfotransferases in these ticks, which recognized phenolic monoamines as their substrates. It is hypothesized that protracted Lyme disease sequelae may be due to impairment of dopaminergic function of the brain reward circuitry. The subsequent recombinant proteins exhibited sulfotransferase function against two neurotransmitters: dopamine and octopamine...
May 2017: Journal of Systems and Integrative Neuroscience
https://www.readbyqxmd.com/read/28734784/drug-delivery-innovations-to-address-global-health-challenges-for-pediatric-and-geriatric-populations-through-improvements-in-patient-compliance
#2
Joshua Boateng
Despite significant advances in pharmaceutical and biotechnological drug discovery, the global population is plagued with many challenging diseases. These are further compounded by anticipated explosion in an ageing population, which presents several problems such as polypharmacy, dysphagia and neurological conditions, resulting in non-compliance and disease complications. For antibiotics, poor compliance, can result in development of drug resistant infections which can be fatal. Further, children, especially, in developing countries die unnecessarily from easily treatable diseases (e...
July 19, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28732479/an-integrated-computational-experimental-approach-reveals-yersinia-pestis-genes-essential-across-a-narrow-or-a-broad-range-of-environmental-conditions
#3
Nicola J Senior, Kalesh Sasidharan, Richard J Saint, Andrew E Scott, Mitali Sarkar-Tyson, Philip M Ireland, Helen L Bullifent, Z Rong Yang, Karen Moore, Petra C F Oyston, Timothy P Atkins, Helen S Atkins, Orkun S Soyer, Richard W Titball
BACKGROUND: The World Health Organization has categorized plague as a re-emerging disease and the potential for Yersinia pestis to also be used as a bioweapon makes the identification of new drug targets against this pathogen a priority. Environmental temperature is a key signal which regulates virulence of the bacterium. The bacterium normally grows outside the human host at 28 °C. Therefore, understanding the mechanisms that the bacterium used to adapt to a mammalian host at 37 °C is central to the development of vaccines or drugs for the prevention or treatment of human disease...
July 21, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28728835/a-multiplex-pcr-for-detection-of-six-viruses-in-ducks
#4
Yongjuan Wang, Shanyuan Zhu, Weiming Hong, Anping Wang, Weiyong Zuo
In this study, six pairs of specific primers that can amplify DNA fragments of different sizes were designed and synthesized according to viral protein gene sequences published in GenBank. Then, a multiplex PCR method was established for rapid detection of duck hepatitis virus 1, duck plague virus, duck Tembusu virus, muscovy duck parvovirus, muscovy duck reovirus, and duck H9N2 avian influenza virus, and achieve simple and rapid detection of viral diseases in ducks. Single PCR was used to confirm primer specificity, and PCR conditions were optimized to construct a multiplex PCR system...
July 17, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28728588/genetic-structure-and-gene-flow-of-the-flea-xenopsylla-cheopis-in-madagascar-and-mayotte
#5
Mireille Harimalala, Sandra Telfer, Hélène Delatte, Phillip C Watts, Adélaïde Miarinjara, Tojo Rindra Ramihangihajason, Soanandrasana Rahelinirina, Minoarisoa Rajerison, Sébastien Boyer
BACKGROUND: The flea Xenopsylla cheopis (Siphonaptera: Pulicidae) is a vector of plague. Despite this insect's medical importance, especially in Madagascar where plague is endemic, little is known about the organization of its natural populations. We undertook population genetic analyses (i) to determine the spatial genetic structure of X. cheopis in Madagascar and (ii) to determine the potential risk of plague introduction in the neighboring island of Mayotte. RESULTS: We genotyped 205 fleas from 12 sites using nine microsatellite markers...
July 20, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28726410/structural-insights-into-the-yersinia-pestis-outer-membrane-protein-ail-in-lipid-bilayers
#6
Samit Kumar Dutta, Yong Yao, Francesca M Marassi
Yersinia pestis the causative agent of plague, is highly pathogenic and poses very high risk to public health. The outer membrane protein Ail (Adhesion invasion locus) is one of the most highly expressed proteins on the cell surface of Y. pestis, and a major target for the development of medical countermeasures. Ail is essential for microbial virulence and is critical for promoting the survival of Y. pestis in serum. Structures of Ail have been determined by X-ray diffraction and solution NMR spectroscopy, but the protein's activity is influenced by the detergents in these samples, underscoring the importance of the surrounding environment for structure-activity studies...
July 20, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28723552/immunology-of-food-allergy
#7
REVIEW
Leticia Tordesillas, M Cecilia Berin, Hugh A Sampson
Many consider food allergy as the "second wave" of the allergy epidemic following the "first wave" of respiratory allergy, i.e., asthma and allergic rhinitis, plaguing westernized countries, with up to 8% of young children and 2%-3% of adults in the United States now affected by hypersensitivity reactions to various foods. In the past decade, there have been great strides in our understanding of the underlying immunopathogenesis of these disorders, which have led to improved diagnostic techniques, management strategies, and therapeutic approaches...
July 18, 2017: Immunity
https://www.readbyqxmd.com/read/28722614/identification-of-risk-factors-associated-with-transmission-of-plague-disease-in-eastern-zambia
#8
Stanley S Nyirenda, Bernard M Hang'ombe, Robert Machangu, Jackson Mwanza, Bukheti S Kilonzo
Plague is a fatal, primarily rodent-flea-borne zoonotic disease caused by Yersinia pestis. The identification of risk factors of plague was investigated through questionnaire interview and conducting focus group discussion (FGD) in Sinda and Nyimba of eastern Zambia. A total of 104 questionnaires were administered to individual respondents and 20 groups consisting of 181 discussants, which comprised FGD team in this study. The study revealed that trapping, transportation, and preparation of rodents for food exposed the community to rodent and their fleas suggesting that plague may have occurred primarily by either flea bites or contact with infected wild rodents...
June 12, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28720399/prenatal-and-postnatal-administration-of-prebiotics-and-probiotics
#9
REVIEW
Kristin Sohn, Mark A Underwood
Colonization of the neonatal gut by beneficial bacteria is important for the establishment and maintenance of the mucosal barrier, thus protecting the neonate from enteric pathogens and local and systemic inflammation. The neonatal microbiome is influenced by infant diet, environment, and the maternal microbiome. Dysbiosis in pregnancy increases the risk of pre-eclampsia, diabetes, infection, preterm labor, and later childhood atopy. Dysbiosis of the neonatal gut plays an important role in colic in the term infant, in the disease processes which plague preterm infants, including necrotizing enterocolitis and sepsis, and in the long-term outcomes of neonates...
July 15, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28720101/drug-candidates-in-clinical-trials-for-alzheimer-s-disease
#10
REVIEW
Shih-Ya Hung, Wen-Mei Fu
Alzheimer's disease (AD) is a major form of senile dementia, characterized by progressive memory and neuronal loss combined with cognitive impairment. AD is the most common neurodegenerative disease worldwide, affecting one-fifth of those aged over 85 years. Recent therapeutic approaches have been strongly influenced by five neuropathological hallmarks of AD: acetylcholine deficiency, glutamate excitotoxicity, extracellular deposition of amyloid-β (Aβ plague), formation of intraneuronal neurofibrillary tangles (NTFs), and neuroinflammation...
July 19, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28717998/locust-displacing-winds-in-eastern-australia-reassessed-with-observations-from-an-insect-monitoring-radar
#11
Zhenhua Hao, V Alistair Drake, Leesa Sidhu, John R Taylor
Based on previous investigations, adult Australian plague locusts are believed to migrate on warm nights (with evening temperatures >25 °C), provided daytime flight is suppressed by surface winds greater than the locusts' flight speed, which has been shown to be 3.1 m s(-1). Moreover, adult locusts are believed to undertake briefer 'dispersal' flights on nights with evening temperature >20 °C. To reassess the utility of these conditions for forecasting locust flight, contingency tests were conducted comparing the nights selected on these bases (predicted nights) for the months of November, January, and March and the nights when locust migration were detected with an insect monitoring radar (actual nights) over a 7-year period...
July 17, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28716442/aphanomyces-astaci-isolate-from-latently-infected-stone-crayfish-austropotamobius-torrentium-population-is-virulent
#12
Japo Jussila, Al Vrezec, Tina Jaklič, Hobo Kukkonen, Jenny Makkonen, Harri Kokko
Aphanomyces astaci infection is the cause of crayfish plague in European crayfish. Here the virulence of an A. astaci As strain isolated from apparently healthy stone crayfish (Austropotamobius torrentium) from Slovenia was compared to that of the Psl-Puujärvi A. astaci isolate in 3 crayfish species: noble crayfish (Astacus astacus), signal crayfish (Pacifastacus leniusculus) from Finland and stone crayfish from Slovenia. All 3 crayfish species were challenged with PsI-Puujärvi A. astaci and succumbed to crayfish plague, with both noble crayfish and stone crayfish showing 100% mortality, while 25% of the signal crayfish died during the challenge...
July 14, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28715914/leprosy-in-a-lombard-avar-cemetery-in-central-italy-campochiaro-molise-6th-8th-century-ad-ancient-dna-evidence-and-demography
#13
Mauro Rubini, Paola Zaio, Mark Spigelman, Helen D Donoghue
BACKGROUND: The study of past infectious diseases increases knowledge of the presence, impact and spread of pathogens within ancient populations. AIM: Polymerase chain reaction (PCR) was used to examine bones for the presence of Mycobacterium leprae ancient DNA (aDNA) as, even when leprosy is present, bony changes are not always pathognomonic of the disease. This study also examined the demographic profile of this population and compared it with two other populations to investigate any changes in mortality trends between different infectious diseases and between the pre-antibiotic and antibiotic eras...
July 17, 2017: Annals of Human Biology
https://www.readbyqxmd.com/read/28711342/birmingham-hip-resurfacing-vs-total-hip-arthroplasty-a-matched-pair-comparison-of-clinical-outcomes
#14
Victor R Ortiz-Declet, David A Iacobelli, Leslie C Yuen, Itay Perets, Austin W Chen, Benjamin G Domb
BACKGROUND: Birmingham hip resurfacing (BHR) has proven to be a good alternative for younger patients with osteoarthritis. Some have asserted that BHR may yield outcomes which are superior to total hip arthroplasty (THA), and that some studies which failed to show a difference were plagued by ceiling effects and lack of sensitivity of outcome measures. The purpose of this study is to compare outcomes of BHR and THA using the "Forgotten Joint" Score-12 (FJS), a more sensitive score with lesser vulnerability to the ceiling effect...
June 23, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28709321/finite-time-and-finite-size-scalings-in-the-evaluation-of-large-deviation-functions-numerical-approach-in-continuous-time
#15
Esteban Guevara Hidalgo, Takahiro Nemoto, Vivien Lecomte
Rare trajectories of stochastic systems are important to understand because of their potential impact. However, their properties are by definition difficult to sample directly. Population dynamics provides a numerical tool allowing their study, by means of simulating a large number of copies of the system, which are subjected to selection rules that favor the rare trajectories of interest. Such algorithms are plagued by finite simulation time and finite population size, effects that can render their use delicate...
June 2017: Physical Review. E
https://www.readbyqxmd.com/read/28706909/volumetric-assessment-in-malignant-pleural-mesothelioma
#16
REVIEW
David J Murphy, Ritu R Gill
Malignant pleural mesothelioma (MPM) is a highly malignant pleural neoplasm with a dismal prognosis. Multimodality approach including surgery and chemotherapy are utilized to treat patients with resectable disease. Clinical staging allows for selection of patients for treatment strategies, but has not been found to be prognostic and is plagued by high interobserver variability. Tumor volume measurement on cross-sectional imaging has emerged as a potential quantitative tool with prognostic significance. This review focuses on volumetric assessment from cross-sectional imaging (CT, MRI, (18)F-FDG PET/CT) and the potential prognostic benefit and applications...
June 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28706551/informal-caregivers-experiences-of-caring-of-multiple-sclerosis-patients-a-qualitative-study
#17
Somayeh Gafari, Masoud F Khoshknab, Kian Nourozi, Eesa Mohamadi
BACKGROUND: Approximately one-third of people suffering from multiple sclerosis (MS) need long-term care by their families, however, we know little of their experiences. Exploring these experiences can be a guideline to improve the quality of care for MS patients. The goal of this study is to explore informal caregivers' experiences regarding care of MS patients. MATERIALS AND METHODS: A qualitative content analysis method was used to conduct this study in 2014...
May 2017: Iranian Journal of Nursing and Midwifery Research
https://www.readbyqxmd.com/read/28706080/power-up-a-reanalysis-of-power-failure-in-neuroscience-using-mixture-modelling
#18
Camilla L Nord, Vincent Valton, John Wood, Jonathan P Roiser
Evidence for endemically low statistical power has recently cast neuroscience findings into doubt. If low statistical power plagues neuroscience, this reduces confidence in reported effects. However, if statistical power is not uniformly low, such blanket mistrust might not be warranted. Here, we provide a different perspective on this issue, analysing data from an influential paper reporting a median power of 21% across 49 meta-analyses (Button et al., 2013). We demonstrate, using Gaussian mixture modelling, that the sample of 730 studies included in that analysis comprises several subcomponents; therefore the use of a single summary statistic is insufficient to characterise the nature of the distribution...
July 13, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28697934/quantitative-characterization-of-gold-nanoparticles-by-size-exclusion-and-hydrodynamic-chromatography-coupled-to-inductively-coupled-plasma-mass-spectrometry-sec-icp-ms-and-hdc-icp-ms-and-quasi-elastic-light-scattering-hdc-qels
#19
Leena Pitkänen, Antonio R Montoro Bustos, Karen E Murphy, Michael R Winchester, André M Striegel
The physicochemical characterization of nanoparticles (NPs) is of paramount importance for tailoring and optimizing the properties of these materials as well as for evaluating the environmental fate and impact of the NPs. Characterizing the size and chemical identity of disperse NP sample populations can be accomplished by coupling size-based separation methods to physical and chemical detection methods. Informed decisions regarding the NPs can only be made, however, if the separations themselves are quantitative, i...
June 27, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28696554/solution-grown-cspbbr3-cs4-pbbr6-perovskite-nanocomposites-toward-temperature-insensitive-optical-gain
#20
Yue Wang, Dejian Yu, Zeng Wang, Xiaoming Li, Xiaoxuan Chen, Venkatram Nalla, Haibo Zeng, Handong Sun
With regards to developing miniaturized coherent light sources, the temperature-insensitivity in gain spectrum and threshold is highly desirable. Quantum dots (QDs) are predicted to possess a temperature-insensitive threshold by virtue of the separated electronic states; however, it is never observed in colloidal QDs due to the poor thermal stability. Besides, for the classical II-VI QDs, the gain profile generally redshifts with increasing temperature, plaguing the device chromaticity. Herein, this paper addresses the above two issues simultaneously by embedding ligands-free CsPbBr3 nanocrystals in a wider band gap Cs4 PbBr6 matrix by solution-phase synthesis...
July 11, 2017: Small
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