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https://www.readbyqxmd.com/read/28220115/spread-of-the-blaoxa-23-containing-tn2008-in-carbapenem-resistant-acinetobacter-baumannii-isolates-grouped-in-cc92-from-china
#1
Yisheng Chen, Jing Gao, Haomin Zhang, Chunmei Ying
The rapid expansion of carbapenem-resistant Acinetobacter baumannii (CRAB) clinical isolates is a big issue. We investigated the antibiotic susceptibility, molecular epidemiology and resistance gene of A. baumannii collected at two hospitals in Shanghai, China. Besides, the A. baumannii PCR-based replicon typing method (AB-PBRT) was conducted to categorize the plasmids into homogeneous groups on the basis of replicase genes. Most CRAB isolates showed high-level resistance to almost all antibiotics but retain susceptibility to colistin and tigecycline...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28217108/chemotaxis-without-conventional-two-component-system-based-on-cell-polarity-and-aerobic-conditions-in-helicity-switching-swimming-of-spiroplasma-eriocheiris
#2
Peng Liu, Huajun Zheng, Qingguo Meng, Natsuho Terahara, Wei Gu, Shengyue Wang, Guoping Zhao, Daisuke Nakane, Wen Wang, Makoto Miyata
Spiroplasma eriocheiris is a pathogen that causes mass mortality in Chinese mitten crab, Eriocheir sinensis. S. eriocheiris causes tremor disease and infects almost all of the artificial breeding crustaceans, resulting in disastrous effects on the aquaculture economy in China. S. eriocheiris is a wall-less helical bacterium, measuring 2.0 to 10.0 μm long, and can swim up to 5 μm per second in a viscous medium without flagella by switching the cell helicity at a kink traveling from the front to the tail. In this study, we showed that S...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28212420/transcriptome-using-illumina-sequencing-reveals-the-traits-of-spermatogenesis-and-developing-testes-in-eriocheir-sinensis
#3
Gen-Liang Li, Hui Qian
Chinese mitten crab (Eriocheir sinensis) has the spermatozoa with typical aflagellate, decondensed chromatin, cup-shaped nuclei, and radial arms. However, the mechanism of spermatogenesis during which the specific spermatozoa are generated in this species is yet unclear. Here, the transcriptome of developing testis in E. sinensis was analyzed using the ways of RNA-seq and bioinformatics analysis to identify candidate genes potentially involved in development of testis and spermatogenesis. The Illumina HiSeq2500 sequencing of three replicons of samples produced a total of 145...
2017: PloS One
https://www.readbyqxmd.com/read/28210850/the-laminar-organization-of-the-motor-cortex-in-monodactylous-mammals-a-comparative-assessment-based-on-horse-chimpanzee-and-macaque
#4
Bruno Cozzi, Alberto De Giorgio, A Peruffo, S Montelli, M Panin, C Bombardi, A Grandis, A Pirone, P Zambenedetti, L Corain, Alberto Granato
The architecture of the neocortex classically consists of six layers, based on cytological criteria and on the layout of intra/interlaminar connections. Yet, the comparison of cortical cytoarchitectonic features across different species proves overwhelmingly difficult, due to the lack of a reliable model to analyze the connection patterns of neuronal ensembles forming the different layers. We first defined a set of suitable morphometric cell features, obtained in digitized Nissl-stained sections of the motor cortex of the horse, chimpanzee, and crab-eating macaque...
February 16, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28196413/alu-derived-alternative-splicing-events-specific-to-macaca-lineages-in-ctsf-gene
#5
Ja-Rang Lee, Sang-Je Park, Young-Hyun Kim, Se-Hee Choe, Hyeon-Mu Cho, Sang-Rae Lee, Sun-Uk Kim, Ji-Su Kim, Bo-Woong Sim, Bong-Seok Song, Kang-Jin Jeong, Youngjeon Lee, Yeung Bae Jin, Philyong Kang, Jae-Won Huh, Kyu-Tae Chang
Cathepsin F, which is encoded by CTSF, is a cysteine proteinase ubiquitously expressed in several tissues. In a previous study, novel transcripts of the CTSF gene were identified in the crab-eating monkey deriving from the integration of an Alu element-AluYRa1. The occurrence of AluYRa1-derived alternative transcripts and the mechanism of exonization events in the CTSF gene of human, rhesus monkey, and crabeating monkey were investigated using PCR and reverse transcription PCR on the genomic DNA and cDNA isolated from several tissues...
February 14, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28194329/understanding-breast-cancer-the-long-and-winding-road
#6
REVIEW
Kiven Erique Lukong
BACKGROUND: Despite a remarkable increase in the depth of our understanding and management of breast cancer in the past 50 years, the disease is still a major public health problem worldwide and poses significant challenges. The palpability of breast tumors has facilitated diagnosis and documentation since ancient times. The earliest descriptions of breast cancer date back to around 3500 BCE. For centuries to follow, theories by Hippocrates (460 BCE) and Galen (200 CE), attributing the cause of breast cancer to an "excess of black bile" and treatment options including the use of opium and castor oil, prevailed...
June 2017: BBA Clinical
https://www.readbyqxmd.com/read/28191521/festina-lente-and-the-crab-and-the-butterfly
#7
Douglas Van Nostrand
No abstract text is available yet for this article.
June 1, 2016: Journal of Translational Internal Medicine
https://www.readbyqxmd.com/read/28187605/ontogenetic-change-of-body-color-patterns-in-laboratory-raised-juveniles-of-six-terrestrial-hermit-crab-species
#8
Katsuyuki Hamasaki, Takuma Tsuru, Tetsuya Sanda, Shunsuke Fujikawa, Shigeki Dan, Shuichi Kitada
We examined the ontogenetic change of body color patterns in the laboratory-raised juveniles of six terrestrial hermit crab species, including Birgus latro, Coenobita brevimanus, C. cavipes, C. purpureus, C. rugosus, and C. violascens, which commonly occur in the southern islands, Japan. The body color patterns of coenobitid juveniles were species-specific. The diagnostic features of body color patterns enable identification of juveniles of coenobitid crab species in the wild, thereby helping to understand the precise habitats of each coenobitid species...
January 30, 2017: Zootaxa
https://www.readbyqxmd.com/read/28187574/first-zoeal-stage-of-the-hermit-crab-i-enallopaguropsis-i-i-guatemoci-i-glassell-1937-crustacea-anomura-paguroidea-paguridea-obtained-in-the-laboratory
#9
Manuel Ayón-Parente, Michel E Hendrickx
The first larval stage of Enallopaguropsis guatemoci is described in detail and illustrated. The larva is compared with larvae known for other genera of Paguridae except Pagurus. A synthesis of all characters provided herein indicates that first larvae of E. guatemoci can be separated from all known pagurid larvae (except Pagurus) by the combination of the following characters: carapace with long dorsal carina, posterolateral spines absent; abdominal somites 3-5 with pair of moderately long spines; telson narrowly triangular, not forked; spine at antennal protopod as long as endopod...
February 3, 2017: Zootaxa
https://www.readbyqxmd.com/read/28187543/new-data-on-the-taxonomy-ecology-and-conservation-of-the-rediscovered-i-louisea-i-i-edeaensis-i-bott-1969-brachyura-potamoidea-potamonautidae-an-endangered-freshwater-crab-from-cameroon
#10
Pierre A Mvogo Ndongo, Thomas VON Rintelen, Christoph D Schubart, Christian Albrecht, Joseph L Tamesse, Neil Cumberlidge
The rare and endangered Cameroonian potamonautid freshwater crab Louisea edeaensis (Bott, 1969) was recently rediscovered during a biological inventory of the freshwater decapods of southern Cameroon. The previous record dated back more than 100 years. The new specimens allow an updated diagnosis of the species based on comparisons of important taxonomic characters. Photographs of the carapace, gonopods, third maxillipeds, and chelipeds of the largest adult male specimen from Lake Ossa, Cameroon are provided, as are the first photographs of living specimens...
February 9, 2017: Zootaxa
https://www.readbyqxmd.com/read/28184355/spiroplasma-eriocheiris-adhesin-like-protein-alp-interacts-with-epidermal-growth-factor-egf-domain-proteins-to-facilitate-infection
#11
Libo Hou, Yuhan Liu, Qi Gao, Xuechuan Xu, Mingxiao Ning, Jingxiu Bi, Hui Liu, Min Liu, Wei Gu, Wen Wang, Qingguo Meng
Spiroplasma eriocheiris is a novel pathogen found in recent years, causing the tremor disease (TD) of Chinese mitten crab Eriocheir sinensis. Like Spiroplasma mirum, S. eriocheiris infects the newborn mouse (adult mice are not infected) and can cause cataract. Adhesion-related protein is an important protein involved in the interaction between pathogen and host. In this study, the Adhesin-like Protein (ALP) of S. eriocheiris was detected on its outer membrane by using immune electron microscopy, and was found to be involved in the bacterium's infection of mouse embryo fibroblasts (3T6-Swiss albino)...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28183275/diversity-and-regulatory-impact-of-copy-number-variation-in-the-primate-macaca-fascicularis
#12
Andreas R Gschwind, Anjali Singh, Ulrich Certa, Alexandre Reymond, Tobias Heckel
BACKGROUND: Copy number variations (CNVs) are a significant source of genetic diversity and commonly found in mammalian genomes. We have generated a genome-wide CNV map for Cynomolgus monkeys (Macaca fascicularis). This crab-eating macaque is the closest animal model to humans that is used in biomedical research. RESULTS: We show that Cynomolgus monkey CNVs are in general much smaller in size than gene loci and are specific to the population of origin. Genome-wide expression data from five vitally important organs demonstrates that CNVs in close proximity to transcription start sites associate strongly with expression changes...
February 10, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28183109/new-records-of-coral-associated-crabs-decapoda-brachyura-carpilioidea-trapezoidea-from-easter-island
#13
Christopher B Boyko, Jose C E Mendoza, Peter Castro
A review is made of those brachyurans that are symbiotic or otherwise associated with scleractinian corals on Easter Island, southeastern Pacific Ocean. A total of seven species is reported, including three species from two families not previously known from the island. Earlier records of Trapezia are analyzed and, although as many as six species have been previously reported, we conclude that only three species are known to occur on the island with certainty.
January 10, 2017: Zootaxa
https://www.readbyqxmd.com/read/28183106/systematics-and-biogeography-of-cuban-porcelain-crabs-decapoda-anomura-porcellanidae
#14
Yander L Diez, Carlos Lira
Marine crustaceans are a well-known invertebrates group in Cuban waters, but some taxa are not well catalogued and the literature about them is scattered. In this work, we present the checklist of porcelain crabs of Cuban Archipelago, including the literature registers and unpublished author's data. A key to the identification of 8 genera and 23 species of the Cuban porcelain crabs is provided. Information about the local distribution of species is presented. In addition, we analyzed the porcelain crab faunal affinities between the ecoregions of the Cuban platform, Greater Antilles islands and the Tropical Northwestern Atlantic (TNA) province...
January 10, 2017: Zootaxa
https://www.readbyqxmd.com/read/28183101/three-new-species-of-freshwater-crabs-of-the-genus-i-pseudothelphusa-i-de-saussure-1857-crustacea-decapoda-pseudothelphusidae-from-mexico
#15
Juan Carlos Ojeda-Escoto, José Luis Villalobos, Fernando Álvarez
Three new species of freshwater crabs of the genus Pseudothelphusa (De Saussure, 1857) from south-central Mexico are described: Pseudothelphusa acahuizotla n. sp., P. ixtapan n. sp., and P. purhepecha n. sp. The new species are included in Pseudothelphusa due to a male gonopod with torsion and the presence of the characteristic mesial process and caudomarginal projection. Pseudothelphusa acahuizotla n. sp. is morphologically similar to P. belliana Rathbun, 1898, but can be distinguished by the relative size of the distal lobe of the caudomarginal projection and by the presence of a conical tooth on the caudal surface of the mesial process of the male gonopod...
January 11, 2017: Zootaxa
https://www.readbyqxmd.com/read/28182764/phylogenetic-patterns-and-the-adaptive-evolution-of-osmoregulation-in-fiddler-crabs-brachyura-uca
#16
Samuel Coelho Faria, Diogo Borges Provete, Carl Leo Thurman, John Campbell McNamara
Salinity is the primary driver of osmoregulatory evolution in decapods, and may have influenced their diversification into different osmotic niches. In semi-terrestrial crabs, hyper-osmoregulatory ability favors sojourns into burrows and dilute media, and provides a safeguard against hemolymph dilution; hypo-osmoregulatory ability underlies emersion capability and a life more removed from water sources. However, most comparative studies have neglected the roles of the phylogenetic and environmental components of inter-specific physiological variation, hindering evaluation of phylogenetic patterns and the adaptive nature of osmoregulatory evolution...
2017: PloS One
https://www.readbyqxmd.com/read/28177286/sloppy-morphological-tuning-in-identified-neurons-of-the-crustacean-stomatogastric-ganglion
#17
Adriane G Otopalik, Marie L Goeritz, Alexander C Sutton, Ted Brookings, Cosmo Joseph Guerini, Eve Marder
Neuronal physiology depends on a neuron's ion channel composition and unique morphology. Variable ion channel compositions can produce similar neuronal physiologies across animals. Less is known regarding the morphological precision required to produce reliable neuronal physiology. Theoretical studies suggest that morphology is tightly tuned to minimize wiring and conduction delay of synaptic events. We utilize high-resolution confocal microscopy and custom computational tools to characterize the morphologies of four neuron types in the stomatogastric ganglion (STG) of the crab Cancer borealis...
February 8, 2017: ELife
https://www.readbyqxmd.com/read/28168117/boxer-crabs-induce-asexual-reproduction-of-their-associated-sea-anemones-by-splitting-and-intraspecific-theft
#18
Yisrael Schnytzer, Yaniv Giman, Ilan Karplus, Yair Achituv
Crabs of the genus Lybia have the remarkable habit of holding a sea anemone in each of their claws. This partnership appears to be obligate, at least on the part of the crab. The present study focuses on Lybia leptochelis from the Red Sea holding anemones of the genus Alicia (family Aliciidae). These anemones have not been found free living, only in association with L. leptochelis. In an attempt to understand how the crabs acquire them, we conducted a series of behavioral experiments and molecular analyses...
2017: PeerJ
https://www.readbyqxmd.com/read/28168108/do-syntopic-host-species-harbour-similar-symbiotic-communities-the-case-of-chaetopterus-spp-annelida-chaetopteridae
#19
Temir A Britayev, Elena Mekhova, Yury Deart, Daniel Martin
To assess whether closely related host species harbour similar symbiotic communities, we studied two polychaetes, Chaetopterus sp. (n = 11) and Chaetopterus cf. appendiculatus (n = 83) living in soft sediments of Nhatrang Bay (South China Sea, Vietnam). The former harboured the porcellanid crabs Polyonyx cf. heok and Polyonyx sp., the pinnotherid crab Tetrias sp. and the tergipedid nudibranch Phestilla sp. The latter harboured the polynoid polychaete Ophthalmonoe pettiboneae, the carapid fish Onuxodon fowleri and the porcellanid crab Eulenaios cometes, all of which, except O...
2017: PeerJ
https://www.readbyqxmd.com/read/28168098/identifying-zooplankton-community-changes-between-shallow-and-upper-mesophotic-reefs-on-the-mesoamerican-barrier-reef-caribbean
#20
Dominic A Andradi-Brown, Catherine E I Head, Dan A Exton, Christina L Hunt, Alicia Hendrix, Erika Gress, Alex D Rogers
Mesophotic coral ecosystems (MCEs, reefs 30-150 m) are understudied, yet the limited research conducted has been biased towards large sessile taxa, such as scleractinian corals and sponges, or mobile taxa such as fishes. Here we investigate zooplankton communities on shallow reefs and MCEs around Utila on the southern Mesoamerican Barrier Reef using planktonic light traps. Zooplankton samples were sorted into broad taxonomic groups. Our results indicate similar taxonomic zooplankton richness and overall biomass between shallow reefs and MCEs...
2017: PeerJ
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