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https://www.readbyqxmd.com/read/29664937/correction-hidden-species-diversity-in-sylvirana-nigrovittata-amphibia-ranidae-highlights-the-importance-of-taxonomic-revisions-in-biodiversity-conservation
#1
(no author information available yet)
[This corrects the article DOI: 10.1371/journal.pone.0192766.].
2018: PloS One
https://www.readbyqxmd.com/read/29538432/hidden-species-diversity-in-sylvirana-nigrovittata-amphibia-ranidae-highlights-the-importance-of-taxonomic-revisions-in-biodiversity-conservation
#2
Jennifer A Sheridan, Bryan L Stuart
Accurately delimiting species and their geographic ranges is imperative for conservation, especially in areas experiencing rapid habitat loss. Southeast Asia currently has one of the highest rates of deforestation in the world, is home to multiple biodiversity hotspots, and the majority of its countries have developing economies with limited resources for biodiversity conservation. Thus, accurately delimiting species and their ranges is particularly important in this region. We examined genetic and morphological variation in the widespread frog species Sylvirana nigrovittata (and its long-treated junior synonym S...
2018: PloS One
https://www.readbyqxmd.com/read/29486721/complete-mitochondrial-genomes-of-nanorana-taihangnica-and-n-yunnanensis-anura-dicroglossidae-with-novel-gene-arrangements-and-phylogenetic-relationship-of-dicroglossidae
#3
Jia-Yong Zhang, Le-Ping Zhang, Dan-Na Yu, Kenneth B Storey, Rong-Quan Zheng
BACKGROUND: Complete mitochondrial (mt) genomes have been used extensively to test hypotheses about microevolution and to study population structure, phylogeography, and phylogenetic relationships of Anura at various taxonomic levels. Large-scale mt genomic reorganizations have been observed among many fork-tongued frogs (family Dicroglossidae). The relationships among Dicroglossidae and validation of the genus Feirana are still problematic. Hence, we sequenced the complete mt genomes of Nanorana taihangnica (=F...
February 27, 2018: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/29409982/understanding-cancer-and-its-treatment-in-thai-traditional-medicine-an-ethnopharmacological-anthropological-investigation
#4
Natchagorn Lumlerdkij, Jaturapat Tantiwongse, Suksalin Booranasubkajorn, Ranida Boonrak, Pravit Akarasereenont, Tawee Laohapand, Michael Heinrich
ETHNOPHARMACOLOGICAL RELEVANCE: Thai traditional medicine (TTM) is widely practiced in Thailand and continues to gain importance in cancer management, but little is known about the TTM practitioners' emic concepts and practice. AIM OF THE STUDY: With this study we firstly aim to document the practice of cancer treatment and prevention by TTM practitioners and, secondly, to evaluate how such traditional concepts and practices are correlated with biomedical ones. This in turn can form the basis for developing novel strategies for designing pharmacological experiments and longer term strategies to develop TTM practice...
April 24, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29407758/european-common-frog-rana-temporaria-anura-ranidae-larvae-show-subcellular-responses-under-field-relevant-bacillus-thuringiensis-var-israelensis-bti-exposure-levels
#5
Stefanie Allgeier, Bianca Frombold, Valentin Mingo, Carsten A Brühl
Bacillus thuringiensis var. israelensis (Bti) is presumed to be an environmental friendly agent for the use in either health-related mosquito control or the reduction of nuisance associated with mosquitoes from seasonal wetlands. Amphibians inhabiting these valuable wetlands may be exposed to Bti products several times during their breeding season. Up until now, information regarding effects on the non-targeted group of amphibians has to be considered rather inconsistent. On this account, we evaluated how three repeated exposures to frequently used Bti formulations (VectoBac® 12AS, VectoBac® WG) in field-relevant rates affect European common frog (Rana temporaria) larvae...
April 2018: Environmental Research
https://www.readbyqxmd.com/read/29351080/ultrastructure-of-digenean-trematode-eggs-platyhelminthes-neoophora-a-review-emphasizing-new-comparative-data-on-four-european-microphalloidea
#6
David Bruce Conn, Zdzisław Świderski, Jordi Miquel
Despite their tremendous diversity and their medical and veterinary importance, details of egg ultrastructure among the digenean trematodes has been studied rather little. The available literature is spread over several decades and several species, but has not been adequately reviewed to reveal patterns of similarity and divergence. We present this review to synthesize and analyse what is known from the available literature reporting studies using both transmission electron microscopy (TEM) and scanning electron microscopy (SEM)...
March 26, 2018: Acta Parasitologica
https://www.readbyqxmd.com/read/29349894/assessment-of-the-potential-of-temporin-peptides-from-the-frog-rana-temporaria-ranidae-as-anti-diabetic-agents
#7
Vishal Musale, Bruno Casciaro, Maria Luisa Mangoni, Yasser H A Abdel-Wahab, Peter R Flatt, J Michael Conlon
Temporin A (FLPLIGRVLSGIL-NH2 ), temporin F (FLPLIGKVLSGIL-NH2 ), and temporin G (FFPVIGRILNGIL-NH2 ), first identified in skin secretions of the frog Rana temporaria, produced concentration-dependent stimulation of insulin release from BRIN-BD11 rat clonal β-cells at concentrations ≥1 nM, without cytotoxicity at concentrations up to 3 μM. Temporin A was the most effective. The mechanism of insulinotropic action did not involve an increase in intracellular Ca2+ concentrations. Temporins B, C, E, H, and K were either inactive or only weakly active...
February 2018: Journal of Peptide Science: An Official Publication of the European Peptide Society
https://www.readbyqxmd.com/read/29297167/health-status-of-pelophylax-ridibundus-amphibia-ranidae-in-a-rice-paddy-ecosystem-in-southern-bulgaria-and-its-importance-in-assessing-environmental-state-haematological-parameters
#8
Zhivko Zhelev, Stefan Tsonev, Katerina Georgieva, Desislava Arnaudova
Pollution effects on haematological parameters in Pelophylax ridibundus individuals were investigated; animals were collected from two sites in Southern Bulgaria: the Tsalapitsa rice fields (RF) and the Vacha river (reference site, RS). Blood analysis showed significant differences between the haematological parameters of RBC, WBC, Hb, packed cell volume (PCV) and frogs' leucogram from RF and those from RS. These findings provide information on long-term background pollution of the habitat (RF) under investigation...
March 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29281968/transcriptome-analyses-of-immune-tissues-from-three-japanese-frogs-genus-rana-reveals-their-utility-in-characterizing-major-histocompatibility-complex-class-ii
#9
Quintin Lau, Takeshi Igawa, Ryuhei Minei, Tiffany A Kosch, Yoko Satta
BACKGROUND: In Japan and East Asia, endemic frogs appear to be tolerant or not susceptible to chytridiomycosis, a deadly amphibian disease caused by the chytrid fungus Batrachochytridium dendrobatidis (Bd). Japanese frogs may have evolved mechanisms of immune resistance to pathogens such as Bd. This study characterizes immune genes expressed in various tissues of healthy Japanese Rana frogs. RESULTS: We generated transcriptome data sets of skin, spleen and blood from three adult Japanese Ranidae frogs (Japanese brown frog Rana japonica, the montane brown frog Rana ornativentris, and Tago's brown frog Rana tagoi tagoi) as well as whole body of R...
December 28, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29246817/diversity-and-biogeography-of-frogs-in-the-genus-amnirana-anura-ranidae-across-sub-saharan-africa
#10
Gregory F M Jongsma, Michael F Barej, Christopher D Barratt, Marius Burger, Werner Conradie, Raffael Ernst, Eli Greenbaum, Mareike Hirschfeld, Adam D Leaché, Johannes Penner, Daniel M Portik, Ange-Ghislain Zassi-Boulou, Mark-Oliver Rödel, David C Blackburn
Frogs in the genus Amnirana (family Ranidae) are widely distributed across sub-Saharan Africa and present a model system for exploring the relationship between diversification and geography across the continent. Using multiple loci from the mitochondrial (16S) and nuclear genomes (DISP2, FICD, KIAA2013, REV3L), we generated a strongly supported species-level phylogeny that provides insights into the continental biogeography of African species of Amnirana, which form a monophyletic group within the genus. Species delimitation analyses suggest that there may be as many as seven additional species of Amnirana in Africa...
March 2018: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/29236056/the-potential-of-frog-skin-derived-peptides-for-development-into-therapeutically-valuable-immunomodulatory-agents
#11
REVIEW
Jelena M Pantic, Ivan P Jovanovic, Gordana D Radosavljevic, Nebojsa N Arsenijevic, J Michael Conlon, Miodrag L Lukic
The aim of this article is to review the immunoregulatory actions of frog skin-derived peptides in order to assess their potential as candidates for immunomodulatory or anti-inflammatory therapy. Frog skin peptides with demonstrable immunomodulatory properties have been isolated from skin secretions of a range of species belonging to the families Alytidae, Ascaphidae, Discoglossidae, Leptodactylidae, Pipidae and Ranidae. Their effects upon production of inflammatory and immunoregulatory cytokines by target cells have been evaluated ex vivo and effects upon cytokine expression and immune cell activity have been studied in vivo by flow cytometry after injection into mice...
December 13, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29150984/how-the-environment-shapes-animal-signals-a-test-of-the-acoustic-adaptation-hypothesis-in-frogs
#12
S Goutte, A Dubois, S D Howard, R Márquez, J J L Rowley, J M Dehling, P Grandcolas, R C Xiong, F Legendre
Long-distance acoustic signals are widely used in animal communication systems and, in many cases, are essential for reproduction. The acoustic adaptation hypothesis (AAH) implies that acoustic signals should be selected for further transmission and better content integrity under the acoustic constraints of the habitat in which they are produced. In this study, we test predictions derived from the AAH in frogs. Specifically, we focus on the difference between torrent frogs and frogs calling in less noisy habitats...
January 2018: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/29134001/a-new-species-of-the-genus-rana-from-henan-central-china-anura-ranidae
#13
Haipeng Zhao, Junxiao Yang, Chunping Wang, Pipeng Li, Robert W Murphy, Jing Che, Zhiyong Yuan
A new species of brown frog Rana luanchuanensis Zhao & Yuan, sp. n. is described from Luanchuan County, western Henan, central China. The mitochondrial genealogy suggests that the new species is the sister taxon to the clade including R. amurensis and R. coreana , and is separated by uncorrected pairwise distances more than 12.5%. Morphologically, this new species differs from its congeners by a suite of characters. Analyses of partial sequences of cytochrome oxidase subunit I (COI) resolve the new species as a single matriline...
2017: ZooKeys
https://www.readbyqxmd.com/read/29127278/the-north-american-bullfrog-draft-genome-provides-insight-into-hormonal-regulation-of-long-noncoding-rna
#14
S Austin Hammond, René L Warren, Benjamin P Vandervalk, Erdi Kucuk, Hamza Khan, Ewan A Gibb, Pawan Pandoh, Heather Kirk, Yongjun Zhao, Martin Jones, Andrew J Mungall, Robin Coope, Stephen Pleasance, Richard A Moore, Robert A Holt, Jessica M Round, Sara Ohora, Branden V Walle, Nik Veldhoen, Caren C Helbing, Inanc Birol
Frogs play important ecological roles, and several species are important model organisms for scientific research. The globally distributed Ranidae (true frogs) are the largest frog family, and have substantial evolutionary distance from the model laboratory Xenopus frog species. Unfortunately, there are currently no genomic resources for the former, important group of amphibians. More widely applicable amphibian genomic data is urgently needed as more than two-thirds of known species are currently threatened or are undergoing population declines...
November 10, 2017: Nature Communications
https://www.readbyqxmd.com/read/29117370/molecular-confirmation-of-frogs-anura-as-hosts-of-corethrellidae-diptera-in-the-southeastern-united-states
#15
Jeremy V Camp, William S Irby
Flies in the family Corethrellidae Edwards 1932 (Diptera) are known to be attracted to the mating calls of male frogs. For the first time, the hosts of corethrellids were identified to species by analyzing bloodmeals taken from resting female flies. A portion of the cytochrome b gene was amplified and sequenced from blood-engorged flies using vertebrate-specific primers. The flies were collected over 6 yr at two locations in the southeastern United States from resting boxes and natural resting sites (rodent burrows)...
September 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28986768/scarce-occurrence-of-calcification-in-human-sinoatrial-nodal-arteries-in-old-age
#16
Yoshiyuki Tohno, Setsuko Tohno, Ranida Quiggins, Takeshi Minami, Pasuk Mahakkanukrauh
To elucidate age-related changes of the sinoatrial (sinuatrial) nodal (SAN) artery, the authors investigated age-related changes of elements in the SAN artery by direct chemical analysis. In addition, the effects of different arterial origins, arterial sizes, and genders on element accumulation were investigated in the SAN artery. Fifty-nine formalin-fixed adult Thai hearts were dissected, and the following three types of the SAN artery were found: The first type was a single SAN artery arising from the right coronary artery (RCA)...
October 7, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28887047/peptides-from-frog-skin-with-potential-for-development-into-agents-for-type-2-diabetes-therapy
#17
J Michael Conlon, Milena Mechkarska, Yasser H Abdel-Wahab, Peter R Flatt
Several frog skin peptides, first identified as result of their antimicrobial or immunomodulatory activities, have subsequently been shown to stimulate insulin release both in vitro and in vivo and so show potential for development into incretin-based drugs for treatment of patients with Type 2 diabetes mellitus. However, their therapeutic potential as anti-diabetic agents is not confined to this activity as certain frog skin-derived peptides, such as magainin-AM2 and CPF-SE1 and analogs of hymenochirin-1B, tigerinin-1R, and esculentin-2CHa, have been shown to increase insulin sensitivity, promote β-cell proliferation, suppress pancreatic and circulating glucagon concentrations, improve the lipid profile, and selectively alter expression of genes involved in insulin secretion and action in mice with diet-induced obesity, insulin resistance and impaired glucose tolerance...
February 2018: Peptides
https://www.readbyqxmd.com/read/28865127/evaluation-of-an-acute-oral-gavage-method-for-assessment-of-pesticide-toxicity-in-terrestrial-amphibians
#18
Douglas J Fort, Michael B Mathis, Faith Kee, Paul Whatling, David Clerkin, Jane Staveley, Clifford Habig
Development of an acute oral toxicity test with a terrestrial-phase amphibian was considered necessary to remove the uncertainty within the field of agrochemical risk assessments. The bullfrog (Lithobates catesbeianus) was selected for use as it is a representative of the family Ranidae and historically this species has been used as an amphibian test model species. Prior to definitive study, oral gavage methods were developed with fenthion and tetraethyl pyrophosphate. Dimethoate and malathion were subsequently tested with both male and female juvenile bullfrogs in comprehensive acute oral median lethal dose (LD50) studies...
February 2018: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28699258/cytotoxic-peptides-with-insulin-releasing-activities-from-skin-secretions-of-the-italian-stream-frog-rana-italica-ranidae
#19
J Michael Conlon, Vishal Musale, Samir Attoub, Maria Luisa Mangoni, Jérôme Leprince, Laurent Coquet, Thierry Jouenne, Yasser H A Abdel-Wahab, Peter R Flatt, Andrea C Rinaldi
Peptidomic analysis of norepinephrine-stimulated skin secretions from Italian stream frog Rana italica led to the purification and characterization of two host-defense peptides differing by a single amino acid residue belonging to the brevinin-1 family (brevinin-1ITa and -1ITb), a peptide belonging to the temporin family (temporin-ITa) and a component identified as prokineticin Bv8. The secretions contained relatively high concentrations of the methionine-sulphoxide forms of brevinin-1ITa and -1ITb suggesting that these peptides may have a role as antioxidants in the skin of this montane frog...
July 11, 2017: Journal of Peptide Science: An Official Publication of the European Peptide Society
https://www.readbyqxmd.com/read/28620851/changes-of-erythrocyte-metric-parameters-in-pelophylax-ridibundus-amphibia-anura-ranidae-inhabiting-water-bodies-with-different-types-of-anthropogenic-pollution-in-southern-bulgaria
#20
Zhivko Zhelev, Georgi Popgeorgiev, Ivan Ivanov, Peter Boyadzhiev
The article presents the basic erythrocyte-metric parameters: cell length (EL) and width (EW), EL/EW, erythrocyte size (ES), nucleus length (NL) and width (NW), NL/NW, nucleus size (NS) and nucleocytoplasmic ratio (NS/ES) in the wild populations of marsh frogs Pelophylax ridibundus from five water bodies in Southern Bulgaria (two rivers and three reservoirs) with different degrees and types of anthropogenic pollution (less disrupted water basins, domestic sewage pollution and heavy metal pollution). The changes in erythrocyte-metric parameters depend on concentrations and types of toxicant and, to a lesser extent, on the type of water basin...
July 2017: Environmental Science and Pollution Research International
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