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https://www.readbyqxmd.com/read/28549236/assessment-of-pathogenicity-and-antigenicity-of-american-lineage-influenza-h5n2-viruses-in-taiwan
#1
Chun-Yang Lin, Min-Yuan Chia, Po-Ling Chen, Chia-Tsui Yeh, Ming-Chu Cheng, Ih-Jen Su, Min-Shi Lee
During December 2003 and March 2004, large scale epidemics of low-pathogenic avian influenza (LPAI) H5N2 occurred in poultry farms in central and southern Taiwan. Based on genomic analysis, these H5N2 viruses contain HA and NA genes of American-lineage H5N2 viruses and six internal genes from avian influenza A/H6N1 viruses endemic in poultry in Taiwan. After disappearing for several years, these novel influenza H5N2 viruses caused outbreaks in poultry farms again in 2008, 2010 and 2012, and have evolved into high pathogenic AI (HPAI) since 2010...
May 23, 2017: Virology
https://www.readbyqxmd.com/read/28547920/pulmonary-pythiosis-in-a-canine-patient
#2
Darin Kepler, Robert Cole, Tekla Lee-Fowler, Jey Koehler, Stephanie Shrader, Joe Newton
A Staffordshire terrier presented for evaluation of a chronic, nonproductive cough that was unresponsive to antibiotic therapy. A large mass identified in the pulmonary hilum was most consistent with tracheobronchial lymphadenopathy on radiographic and computed tomography (CT) images. Bronchoscopy confirmed a mass compressing the dorsal portion of the intrathoracic trachea. Bronchoscopic biopsies of the tracheal mass revealed necrosuppurative and eosinophilic inflammation with intralesional Pythium insidiousum hyphae...
May 25, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28547581/gender-disparity-in-hepatocellular-carcinoma-hcc-multiple-underlying-mechanisms
#3
REVIEW
Bo Zheng, Yan-Jing Zhu, Hong-Yang Wang, Lei Chen
On the global scale, hepatitis B virus (HBV) infection is the main cause of hepatocellular carcinoma (HCC) especially in regions of Asia where HBV infection is endemic. Epidemiological studies show that the incidence of inflammation-driven HCC in males is three times as high as in females. Recent studies suggest that sex hormones have a crucial role in the pathogenesis and development of HBV-induced HCC. We found that the estrogen/androgen signaling pathway is associated with decreased/increased transcription and replication of HBV genes and can promote the development of HBV infections by up/downregulating HBV RNA transcription and inflammatory cytokines levels, which in turn slow down the progression of HBV-induced HCC...
May 23, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28547342/trichosporon-asteroides-isolated-from-cutaneous-lesions-of-a-suspected-case-of-paracoccidioidomycosis-ceti-in-a-bottlenose-dolphin-tursiops-truncatus
#4
Keiichi Ueda, Ichiro Nakamura, Eiko Nakagawa Itano, Kazunori Takemura, Yasutomo Nakazato, Ayako Sano
"Paracoccidioidomycosis ceti" is a rare zoonotic fungal infection affecting dolphins and is endemic worldwide. The causative agents are Paracoccidioides species; however, it is impossible to isolate the fungal species. We isolated Trichosporon asteroides from multifocal, irregularly raised skin lesions on a female bottlenose dolphin (Tursiops truncatus) captured off coast of Japan, which was suspected to have "paracoccidioidomycosis ceti." An abundance of round, yeast-like cells was detected in a potassium hydroxide direct-mount specimen of the skin samples; however, nested PCR targeting the partial sequence of 43-kDa glycoprotein-coding gene correspondent to Paracoccidioides sp...
May 25, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28545973/evolutionary-and-ecological-forces-influencing-population-diversification-in-bornean-montane-passerines
#5
Vivien L Chua, Brian Tilston Smith, Ryan C Burner, Mustafa Abdul Rahman, Maklarin Lakim, Dewi M Prawiradilaga, Robert G Moyle, Frederick H Sheldon
The mountains of Borneo are well known for their high endemicity and historical role in preserving Southeast Asian rainforest biodiversity, but the diversification of populations inhabiting these mountains is poorly studied. Here we examine the genetic structure of 12 Bornean montane passerines by comparing complete mtDNA ND2 gene sequences of populations spanning the island. Maximum likelihood and Bayesian phylogenetic trees and haplotype networks are examined for common patterns that might signal important historical events or boundaries to dispersal...
May 22, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28545923/seropersistence-of-tbe-virus-antibodies-10-years-after-first-booster-vaccination-and-response-to-a-second-booster-vaccination-with-fsme-immun-0-5ml-in-adults
#6
R Konior, J Brzostek, E M Poellabauer, Q Jiang, L Harper, W Erber
Tick-borne encephalitis (TBE) is a viral disease that can have a severe acute clinical course and considerable long-term morbidity. As there is no causal treatment currently available for TBE, vaccination is the only way to combat the disease in endemic areas. The studies presented here were conducted to obtain prospective long-term TBE serum antibody persistence data of subjects up to 10years after the first booster with FSME-IMMUN. This report presents the results of 2 follow-up studies in the same study population of 315 healthy adults...
May 22, 2017: Vaccine
https://www.readbyqxmd.com/read/28545919/molecular-diagnosis-of-salmonella-typhi-and-its-virulence-in-suspected-typhoid-blood-samples-through-nested-multiplex-pcr
#7
Solai Ramatchandirane Prabagaran, Vellingiri Kalaiselvi, Naganathan Chandramouleeswaran, Krishnan Nair Geetha Deepthi, Kootallur Narayanan Brahmadathan, Mariappa Mani
A nested multiplex polymerase chain reaction (PCR) based diagnosis was developed for the detection of virulent Salmonella typhi in the blood specimens from patients suspected for typhoid fever. After the Widal test, two pairs of primers were used for the detection of flagellin gene (fliC) of S. typhi. Among them, those positive for fliC alone were subjected to identification of genes in Via B operon of Salmonella Pathogenesity Island (SPI-7) where four primer pairs were used to detect tviA and tviB genes. Among 250 blood samples tested, 115 were positive by fliC PCR; 22 of these were negative for tviA and tviB...
May 22, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28545225/state-of-art-of-cancer-pharmacogenomics-in-latin-american-populations
#8
REVIEW
Andrés López-Cortés, Santiago Guerrero, María Ana Redal, Angel Tito Alvarado, Luis Abel Quiñones
Over the past decades, several studies have shown that tumor-related somatic and germline alterations predicts tumor prognosis, drug response and toxicity. Latin American populations present a vast geno-phenotypic diversity due to the great interethnic and interracial mixing. This genetic flow leads to the appearance of complex characteristics that allow individuals to adapt to endemic environments, such as high altitude or extreme tropical weather. These genetic changes, most of them subtle and unexplored, could establish a mutational profile to develop new pharmacogenomic therapies specific for Latin American populations...
May 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28545155/rapid-diagnostic-tests-for-typhoid-and-paratyphoid-enteric-fever
#9
REVIEW
Lalith Wijedoru, Sue Mallett, Christopher M Parry
BACKGROUND: Differentiating both typhoid (Salmonella Typhi) and paratyphoid (Salmonella Paratyphi A) infection from other causes of fever in endemic areas is a diagnostic challenge. Although commercial point-of-care rapid diagnostic tests (RDTs) for enteric fever are available as alternatives to the current reference standard test of blood or bone marrow culture, or to the widely used Widal Test, their diagnostic accuracy is unclear. If accurate, they could potentially replace blood culture as the World Health Organization (WHO)-recommended main diagnostic test for enteric fever...
May 26, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28545149/persistence-of-lineage-iv-peste-des-petits-ruminants-virus-within-israel-since-1993-an-evolutionary-perspective
#10
Brian Clarke, Mana Mahapatra, Orly Friedgut, Velizar Bumbarov, Satya Parida
Peste-des-petits ruminants (PPR) is one of the most important infectious diseases of domesticated small ruminants. From the initial identification in 1942 in West Africa, PPR virus (PPRV) has spread throughout much of the developing world. PPRV is now considered endemic throughout Africa, with the notable exception of South Africa, the Middle-East and Israel, as well as South-, East-, and Central Asia. Despite this widespread dispersal, the evolution and transmission of PPRV in endemic populations is not well understood...
2017: PloS One
https://www.readbyqxmd.com/read/28544677/pyrethroid-resistance-associated-with-m918l-mutation-and-detoxifying-metabolism-in-aphis-gossypii-from-bt-cotton-growing-regions-of-china
#11
Xuewei Chen, Minyuan Tie, Anqi Chen, Kangsheng Ma, Fen Li, Pingzhuo Liang, Ying Liu, Dunlun Song, Xiwu Gao
BACKGROUND: The cotton aphid, Aphis gossypii (Glover), is a destructive pest that affects numerous crops throughout the world. Pyrethroid resistance has become endemic in A. gossypii populations in the cotton growing areas of China due to wide- spread application of insecticides. To assess the extent of pyrethroid resistance, bioassays were conducted on field populations collected from several cotton cultivation areas from 2010-2015. The frequency of a known resistance-associated sodium channel mutation (M918L) in A...
May 25, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28544594/diversity-of-aromatic-hydroxylating-dioxygenase-genes-in-mangrove-microbiome-and-their-biogeographic-patterns-across-global-sites
#12
Sanderson T P de Sousa, Lucélia Cabral, Gileno Vieira Lacerda Júnior, Valéria M Oliveira
Aromatic hydrocarbons (AH), such as polycyclic aromatic hydrocarbons, are compounds largely found in nature. Aromatic-ring-hydroxylating dioxygenases (ARHD) are proteins involved in AH degradation pathways. We used ARHD functional genes from an oil-impacted mangrove area and compared their diversity with other sites around the world to understand the ARHD biogeographic distribution patterns. For this, a comprehensive database was established with 166 operational protein families (OPFs) from 1,758 gene sequences obtained from 15 different sites worldwide, of which twelve are already published studies and three are unpublished...
May 23, 2017: MicrobiologyOpen
https://www.readbyqxmd.com/read/28544317/fish-parasite-dinoflagellates-haidadinium-ichthyophilum-and-piscinoodinium-share-a-recent-common-ancestor
#13
Elisabeth Hehenberger, Erick R James, Javier Del Campo, John A Buckland-Nicks, Thomas E Reimchen, Patrick J Keeling
The dinoflagellate Haidadinium ichthyophilum Buckland-Nicks, Reimchen and Garbary 1997 is an ectoparasite of the spine-deficient, three-spine stickleback Gasterosteus aculeatus L. Reimchen 1984, a fish endemic to Rouge Lake, Haida Gwaii. Haidadinium ichthyophilum proved difficult to assign taxonomically, because its morphology and complex life cycle exhibited defining characteristics of both autotrophic and heterotrophic dinoflagellates, and was tentatively assigned to the Phytodiniales. Here, we characterized a 492bp-fragment of the small subunit ribosomal RNA (SSU rRNA) from preserved H...
May 25, 2017: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/28544267/genetic-variation-within-species-and-haplotypes-of-the-wiseana-lepidoptera-hepialidae-complex-and-development-of-non-sequenced-based-identification-tools-to-aid-field-studies
#14
Nicola K Richards, Sarah Mansfield, Richard J Townsend, Colin M Ferguson
BACKGROUND: Porina is the common name used to describe moths and caterpillars of the seven endemic species and three haplotypes of Wiseana in New Zealand. Several species have adapted to eating introduced pasture plants, however a paucity of defining morphological characteristics has meant that porina are grouped as indistinguishable species within a complex. This study aimed to develop non-sequencing identification methods for porina species. RESULTS: We sequenced 1, 718 bp of the mitochondrial cytochrome oxidase genes for all Wiseana species and haplotypes using 75 specimens collected from 42 sites throughout New Zealand...
May 22, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28544099/genetic-signatures-coupled-with-lineage-shift-characterize-endemic-evolution-of-dengue-virus-serotype-2-during-2015-outbreak-in-delhi-india
#15
Manish Chandra Choudhary, Ekta Gupta, Shvetank Sharma, Nadeem Hasnain, Pragya Agarwala
OBJECTIVE: In 2015 New Delhi witnessed a massive outbreak of Dengue virus (DENV) resulting in high morbidity and mortality. We report the molecular characterization of the dominant circulating DENV strain to understand its evolution and dispersal. MATERIALS AND METHODS: DENV infections were diagnosed by detection of IgM/NS1 antigen and serotyping was performed by C-PrM PCR. Envelope gene was amplified and variation(s) in envelope gene were analyzed. Phylogenetic tree construction, time-based phylogeny and origin of DENV were analyzed...
May 23, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28544092/fever-and-multiple-eschars-after-an-african-safari-report-of-three-cases
#16
Fátima Albízuri Prado, Alba Sánchez, Marta Feito, Ander Mayor, Ana Rodriguez, Raúl de Lucas
African tick-bite fever (ATBF), a tickborne disease endemic in rural areas of sub-Saharan Africa and the West Indies caused by Rickettsia africae, has been recognized as an emerging health problem in recent years. ATBF has been reported as the second most commonly documented etiology of fever, after malaria, in travelers who return ill from sub-Saharan Africa. Most cases reported in the literature occurred in middle-aged adults, so the incidence of ATBF in children is unclear. We report a cluster of three cases of ATBF that occurred in children ages 7 to 16 years after returning from a game-hunting safari in South Africa...
May 25, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28543959/epidemiology-of-urothelial-carcinoma
#17
REVIEW
Jun Miyazaki, Hiroyuki Nishiyama
The epithelium lining is defined as the mucosal surfaces of the renal collecting tubules, calyces and pelvis, as well as the ureter, bladder and urethra. The term "urothelium" is used to refer to these surfaces. Upper tract urothelial carcinoma is a rare subset of urothelial cancers with a poor prognosis. Urinary bladder cancer is the most common malignancy involving the urinary system. Upper tract urothelial carcinoma is more common in men than in women, with a male-to-female ratio of 2:1. The incidence of urinary bladder cancer is also higher in men...
May 21, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28543871/tropical-specialist-versus-climate-generalist-diversification-and-demographic-history-of-sister-species-of-carlia%C3%A2-skinks-from-northwestern-australia
#18
Ana C Afonso Silva, Jason G Bragg, Sally Potter, Carlos Fernandes, Maria Manuela Coelho, Craig Moritz
Species endemic to the tropical regions are expected to be vulnerable to future climate change due in part to their relatively narrow climatic niches. In addition, these species are more likely to have responded strongly to past climatic change, and this can be explored through phylogeographic analyses. To test the hypothesis that tropical specialists are more sensitive to climate change than climate generalists, we generated and analyze sequence data from mtDNA and ~2500 exons to compare scales of historical persistence and population fluctuation in two sister species of Australian rainbow skinks: the tropical specialist Carlia johnstonei and the climate generalist C...
May 24, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28543817/influence-of-diabetes%C3%A2-mellitus-on-the-immunity-to-human-tuberculosis
#19
REVIEW
Nathella Pavan Kumar, Subash Babu
Type 2 diabetes mellitus (DM) is a major risk factor for the development of active pulmonary tuberculosis, with development of DM pandemic in countries where tuberculosis (TB) is also endemic. Understanding the impact of DM on TB and the determinants of co-morbidity is essential in responding to this growing public health problem with improved therapeutic approaches. Despite the clinical and public health significance posed by the dual burden of TB and DM, little is known about the immunological and biochemical mechanisms of susceptibility...
May 22, 2017: Immunology
https://www.readbyqxmd.com/read/28543553/enhanced-acquired-antibodies-to-a-chimeric-plasmodium-falciparum-antigen-ub05-09-is-associated-with-protective-immunity-against-malaria
#20
Dinga Jerome Nyhalah, Gamua Stanley Dobgima, Vincent PrydeKehdingha Titanji
It has been shown that covalently linking two antigens could enhance the immunogenicity of the chimeric construct. To prioritise such a chimera for malaria vaccine development it is necessary to demonstrate that naturally acquired antibodies against the chimera are associated with protection from malaria. Here we probe the ability of a chimeric construct of UB05 and UB09 antigens (UB05-09) to better differentiate between acquired immune protection and susceptibility to malaria. In a cross-sectional study, recombinant UB05-09 chimera and the constituent antigens were used to probe for specific antibodies in the plasma from children and adults resident in a malaria endemic zone, using the enzyme-linked immunosorbent assay (ELISA)...
May 24, 2017: Parasite Immunology
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