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https://www.readbyqxmd.com/read/28811247/pharmacological-analysis-of-poecilotheria-spider-venoms-in-mice-provides-clues-for-human-treatment
#1
Alexander Andreev-Andrievskiy, Anfisa Popova, Evgeniia Lagereva, Daniil Osipov, Antonina Berkut, Eugene Grishin, Alexander Vassilevski
Bites of tiger spiders belonging to Poecilotheria genus cause moderate to severe pain and long-lasting local or generalized muscle cramps in humans. Bites occur in regions of the spiders' natural habitat, India and Sri Lanka, but the popularity of these colorful tarantulas as pets leads to reports of envenomation cases worldwide. Treatment is predominantly symptomatic and often inadequate since there is almost no clinical or toxicology research data available, and physicians outside India or Sri Lanka typically have no experience in treating such cases...
August 12, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28806497/tooth-morphogenesis-and-fgf4-expression-during-development-of-molar-tooth-in-three-muroid-rodents-calomyscus-elburzensis-calomyscidae-mesocricetus-auratus-cricetidae-and-mus-musculus-muridae
#2
Kordiyeh Hamidi, Jamshid Darvish, Maryam M Matin, Athar Sadat Javanmard, C William Kilpatrick
To date, no studies have examined the tooth formation during developmental stages of brush-tailed mice (Calomyscidae) and true hamsters (Cricetidae). Herein, we compared the timing of tooth morphogenesis and FGF4 expression pattern during development of the first lower molar in Goodwin's brush-tailed mouse, Calomyscus elburzensis with two other muroid rodents; the house mouse, Mus musculus (Muridae), model organism for tooth morphogenesis, and the golden hamster, Mesocricetus auratus which shares great similarities in cusp pattern with brush-tailed mice...
August 14, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28795302/novel-combination-of-2-methoxyestradiol-and-cyclophosphamide-enhances-the-antineoplastic-and-pro-apoptotic-effects-on-s-180-ascitic-tumour-cells
#3
Srabantika Mallick, Atish Barua, Goutam Paul, Samarendra Nath Banerjee
Sarcoma 180 (S-180) tumour cell line is a stable murine tumour cell line with 98-99% stumour takes capacity in Swiss albino mouse - Mus musculus. 2 Methoxyestradiol (2ME) - a promising anti-neoplastic and anti-angiogenic agent, showed toxicity to host body in higher concentration. Cyclophosphamide (CP), the anti-neoplastic agent has long been used as a chemotherapeutic drug for treatment of different cancers. Our studies have shown that the combination effect of 2ME and CP on S-180 tumour cell line is anti-proliferative and less toxic...
August 10, 2017: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/28792069/bloom-syndrome-helicase-in-meiosis-pro-crossover-functions-of-an-anti-crossover-protein
#4
REVIEW
Talia Hatkevich, Jeff Sekelsky
The functions of the Bloom syndrome helicase (BLM) and its orthologs are well characterized in mitotic DNA damage repair, but their roles within the context of meiotic recombination are less clear. In meiotic recombination, multiple repair pathways are used to repair meiotic DSBs, and current studies suggest that BLM may regulate the use of these pathways. Based on literature from Saccharomyces cerevisiae, Arabidopsis thaliana, Mus musculus, Drosophila melanogaster, and Caenorhabditis elegans, we present a unified model for a critical meiotic role of BLM and its orthologs...
August 9, 2017: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/28791727/morphology-and-classification-of-right-ventricular-bands-in-the-domestic-dog-canis-familiaris
#5
L A Cope
Ventricular bands, also designated as 'false tendons', are described as single or multiple strands that cross the ventricles and have no connection to valvular cusps. Previous work indicates these strands are present in the ventricles of humans and some animal hearts and not always associated with cardiac pathologies. Despite these previous studies, the published literature is limited in documenting the morphology of these strands and incidence in animals. In this study, examination of 89 hearts showed six types of ventricular bands in the right ventricle of the domestic dog...
August 9, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28783438/sarcocystis-strixi-n-sp-from-a-barred-owl-strix-varia-definitive-host-and-interferon-gamma-gene-knockout-mice-as-experimental-intermediate-host
#6
Shiv Verma, Alexa Rosypal, Jospeph Mowery, David Scott, Camila Cezar, Benjamin M Rosenthal, J P Dubey, David Lindsay
Here we report a new species of Sarcocystis with Barred owls as the natural definitive host and interferon gamma gene knockout (KO) mice as an experimental intermediate host. A Barred owl submitted to the Carolina Raptor Center, Huntersville, North Carolina, was euthanized because of paralysis. Fully sporulated 12.5 x 9.9 m sporocysts were found in intestinal scrapings from the owl. Sporocysts from the Barred owl were orally fed to 4 laboratories reared outbred Swiss Webster (SW) (Mus musculus) and 8 KO mice...
August 7, 2017: Journal of Parasitology
https://www.readbyqxmd.com/read/28780396/mobile-phone-1800mhz-radiation-impairs-female-reproduction-in-mice-mus-musculus-through-stress-induced-inhibition-of-ovarian-and-uterine-activity
#7
Saba Shahin, Surya Pal Singh, Chandra Mohini Chaturvedi
Present study investigated the long-term effects of mobile phone (1800MHz) radiation in stand-by, dialing and receiving modes on the female reproductive function (ovarian and uterine histo-architecture, and steroidogenesis) and stress responses (oxidative and nitrosative stress). We observed that mobile phone radiation induces significant elevation in ROS, NO, lipid peroxidation, total carbonyl content and serum corticosterone coupled with significant decrease in antioxidant enzymes in hypothalamus, ovary and uterus of mice...
August 2, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28774948/molecular-and-functional-characterization-of-the-voltage-gated-proton-channel-in-zebrafish-neutrophils
#8
Adisorn Ratanayotha, Takafumi Kawai, Shin-Ichi Higashijima, Yasushi Okamura
Voltage-gated proton channels (Hv1/VSOP) are expressed in various cells types, including phagocytes, and are involved in diverse physiological processes. Although hvcn1, the gene encoding Hv1, has been identified across a wide range of species, most of the knowledge about its physiological function and expression profile is limited to mammals. In this study, we investigated the basic properties of DrHv1, the Hv1 ortholog in zebrafish (Danio rerio) which is an excellent animal model owing to the transparency, as well as its functional expression in native cells...
August 2017: Physiological Reports
https://www.readbyqxmd.com/read/28767977/clinical-and-serological-tests-for-arboviruses-in-free-living-domestic-pigeons-columba-livia
#9
Bruna Alves Ramos, Jannifer Oliveira Chiang, Lívia Carício Martins, Liliane Leal das Chagas, Franko de Arruda E Silva, Milene Silveira Ferreira, Maria Nazaré Oliveira Freitas, Bianca Nascimento de Alcantara, Sandro Patroca da Silva, Stefânia Araújo Miranda, Barbara Alves Sepulvreda, Layna Thayssa Guimarães Corrêa, Andréa Maria Góes Negrão, Pedro Fernando da Costa Vasconcelos, Alexandre do Rosário Casseb
BACKGROUND: In this study, we evaluated the role of free-living domestic pigeons (Columba livia) as a reservoir of arboviruses in the city of Belém, state of Pará, Brazil. We investigated the presence of antibodies against the most prevalent arboviruses. OBJECTIVES: This study was aimed at evaluating some clinical and physical parameters of domestic pigeons, including the presence of antibodies to Amazon-endemic arboviruses. METHODS: Eighty-five healthy pigeons were captured in Mangal das Garças Park, in Belém, and were bled...
August 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28751421/the-recombination-landscape-in-wild-house-mice-inferred-using-population-genomic-data
#10
Tom R Booker, Rob W Ness, Peter D Keightley
Characterizing variation in the rate of recombination across the genome is important for understanding several evolutionary processes. Previous analysis of the recombination landscape in laboratory mice has revealed that the different subspecies have different suites of recombination hotspots. It is unknown, however, whether hotspots identified in laboratory strains reflect the hotspot diversity of natural populations or whether broad-scale variation in the rate of recombination is conserved between subspecies...
July 27, 2017: Genetics
https://www.readbyqxmd.com/read/28748835/prevalence-of-lassa-virus-among-rodents-trapped-in-three-south-south-states-of-nigeria
#11
D E Agbonlahor, A Erah, I M Agba, F E Oviasogie, A F Ehiaghe, M Wankasi, O A Eremwanarue, I J Ehiaghe, E C Ogbu, R I Iyen, S Abbey, M Y Tatfeng, J Uhunmwangho
BACKGROUND & OBJECTIVES: Lassa fever has been endemic in Nigeria since 1969. The rodent Mastomys natalensis has been widely claimed to be the reservoir host of the Lassa virus. This study was designed to investigate the dis- tribution of species of rodents in three states (Edo, Delta and Bayelsa) of Nigeria and to determine the prevalence of Lassa virus amongst trapped rodents in the selected states. METHODS: Rodents were trapped during November 2015 to October 2016 from the three states in South-South re- gion of Nigeria...
April 2017: Journal of Vector Borne Diseases
https://www.readbyqxmd.com/read/28747988/no-speed-dating-please-patterns-of-social-preference-in-male-and-female-house-mice
#12
Miriam Linnenbrink, Sophie von Merten
BACKGROUND: In many animal species, interactions between individuals of different sex often occur in the context of courtship and mating. During these interactions, a specific mating partner can be chosen. By discriminating potential mates according to specific characteristics, individuals can increase their evolutionary fitness in terms of reproduction and offspring survival. In this study, we monitored the partner preference behaviour of female and male wild house mice (Mus musculus domesticus) from populations in Germany (G) and France (F) in a controlled cage setup for 5 days and six nights...
2017: Frontiers in Zoology
https://www.readbyqxmd.com/read/28740783/bone-morphogenetic-protein-7-enhances-degradation-of-osteoinductive-bioceramic-implants-in-an-ectopic-model
#13
J Camilo Roldán, Tim Klünter, Peter Schulz, Ulrike Deisinger, Claudius Diez, Waltraud Waiss, Christian Kirschneck, Torsten E Reichert, Rainer Detsch
BACKGROUND: The aim of the present study was to evaluate the degradation pattern of highly porous bioceramics as well as the bone formation in presence of bone morphogenetic protein 7 (BMP-7) in an ectopic site. METHODS: Novel calcium phosphate ceramic cylinders sintered at 1,300°C with a total porosity of 92-94 vol%, 45 pores per inch, and sized 15 mm (Ø) × 5 mm were grafted on the musculus latissimus dorsi bilaterally in 10 Göttingen minipigs: group I (n = 5): hydroxyapatite (HA) versus biphasic calcium phosphate (BCP), a mixture of HA and tricalcium phosphate (TCP) in a ratio of 60/40 wt%; group II (n = 5): TCP versus BCP...
June 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28740220/the-tnfaip8-pe-complex-is-a-novel-upstream-effector-in-the-anti-autophagic-action-of-insulin
#14
Ji-Soo Kim, Jimin Park, Mi-Sun Kim, Ji-Young Ha, Ye-Won Jang, Dong Hae Shin, Jin H Son
Defective hepatic autophagy is observed in obesity and diabetes, whereas autophagy is inhibited by insulin in hepatocytes. Insulin-induced anti-autophagy is mediated by non-canonical Gαi3 signaling via an unknown mechanism. Previously, we identified the anti-autophagic activity of Tnfaip8 via activation of mammalian target of rapamycin (mTOR) in the nervous system. Here, we demonstrate that insulin temporally induces Tnfaip8, which mediates the anti-autophagic action of insulin through formation of a novel ternary complex including Tnfaip8, phosphatidylethanolamine (PE) and Gαi3...
July 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28732468/nogoa-predicting-noisy-go-annotations-using-evidences-and-sparse-representation
#15
Guoxian Yu, Chang Lu, Jun Wang
BACKGROUND: Gene Ontology (GO) is a community effort to represent functional features of gene products. GO annotations (GOA) provide functional associations between GO terms and gene products. Due to resources limitation, only a small portion of annotations are manually checked by curators, and the others are electronically inferred. Although quality control techniques have been applied to ensure the quality of annotations, the community consistently report that there are still considerable noisy (or incorrect) annotations...
July 21, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28728557/the-impact-of-illegal-waste-sites-on-a-transmission-of-zoonotic-viruses
#16
Darja Duh, Sandra Hasic, Elena Buzan
BACKGROUND: Illegal waste disposal impacts public health and causes aesthetic and environmental pollution. Waste disposed in places without permitted and controlled facilities can provide a ready source of nutrition and shelter for rodents and thus promote the spread of their ecto- and endoparasites. The presence of two distinct zoonotic viruses, lymphocytic choriomeningitis virus (LCMV) and tick-borne encephalitis virus (TBEV), was searched at illegal waste sites. The aim of this study was to determine the prevalence of infection with both viruses in rodents and to discuss the virus-rodent relations in such environments...
July 20, 2017: Virology Journal
https://www.readbyqxmd.com/read/28727808/automatic-mouse-ultrasound-detector-a-mud-a-new-tool-for-processing-rodent-vocalizations
#17
Sarah M Zala, Doris Reitschmidt, Anton Noll, Peter Balazs, Dustin J Penn
House mice (Mus musculus) emit complex ultrasonic vocalizations (USVs) during social and sexual interactions, which have features similar to bird song (i.e., they are composed of several different types of syllables, uttered in succession over time to form a pattern of sequences). Manually processing complex vocalization data is time-consuming and potentially subjective, and therefore, we developed an algorithm that automatically detects mouse ultrasonic vocalizations (Automatic Mouse Ultrasound Detector or A-MUD)...
2017: PloS One
https://www.readbyqxmd.com/read/28722586/continuous-excretion-of-leptospira-borgpetersenii-ballum-in-mice-assessed-by-viability-quantitative-polymerase-chain-reaction
#18
Marie-Estelle Soupé-Gilbert, Emilie Bierque, Sophie Geroult, Magali Teurlai, Cyrille Goarant
Rodents are the main reservoir animals of leptospirosis. In this study, we characterized and quantified the urinary excretion dynamics of Leptospira by Mus musculus infected with 2 × 10(8) virulent Leptospira borgpetersenii serogroup Ballum. Each micturition was collected separately in metabolic cages, at 12 time points from 7 to 117 days post-infection (dpi). We detected Leptospira in all urine samples collected (up to 8 per time point per mouse) proving that Leptospira excretion is continuous with ca. 90% live L...
July 17, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28721358/utah-optrode-array-customization-using-stereotactic-brain-atlases-and-3-d-cad-modeling-for-optogenetic-neocortical-interrogation-in-small-rodents-and-nonhuman-primates
#19
Ronald W Boutte, Sam Merlin, Guy Yona, Brandon Griffiths, Alessandra Angelucci, Itamar Kahn, Shy Shoham, Steve Blair
As the optogenetic field expands, the need for precise targeting of neocortical circuits only grows more crucial. This work demonstrates a technique for using Solidworks(®) computer-aided design (CAD) and readily available stereotactic brain atlases to create a three-dimensional (3-D) model of the dorsal region of area visual cortex 4 (V4D) of the macaque monkey (Macaca fascicularis) visual cortex. The 3-D CAD model of the brain was used to customize an [Formula: see text] Utah optrode array (UOA) after it was determined that a high-density ([Formula: see text]) UOA caused extensive damage to marmoset (Callithrix jacchus) primary visual cortex as assessed by electrophysiological recording of spiking activity through a 1...
October 2017: Neurophotonics
https://www.readbyqxmd.com/read/28720579/recruitment-of-histone-modifications-to-assist-mrna-dosage-maintenance-after-degeneration-of-cytosine-dna-methylation-during-animal-evolution
#20
Andrew Yf Chang, Ben-Yang Liao
Following gene duplication, mRNA expression of the duplicated gene is reduced to maintain mRNA dosage. In mammals, this process is achieved with increased cytosine DNA methylation of the promoters of duplicated genes to suppress transcriptional initiation. However, not all animal species possess a full apparatus for cytosine DNA methylation. For such species such as roundworm (Caenorhabditis elegans, "worm" hereafter) or fruit fly (Drosophila melanogaster, "fly" hereafter), it is unclear how reduced expression of duplicated genes has been achieved evolutionarily...
July 18, 2017: Genome Research
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