keyword
MENU ▼
Read by QxMD icon Read
search

crabs

keyword
https://www.readbyqxmd.com/read/28643233/assessing-environmental-exposure-to-%C3%AE-n-methylamino-l-alanine-bmaa-in-complex-sample-matrices-a-comparison-of-the-three-most-popular-lc-ms-ms-methods
#1
Teesha C Baker, Fiona J M Tymm, Susan J Murch
β-N-Methylamino-L-alanine (BMAA) is a naturally occurring non-protein amino acid produced by cyanobacteria, accumulated through natural food webs, found in mammalian brain tissues. Recent evidence indicates an association between BMAA and neurological disease. The accurate detection and quantification of BMAA in food and environmental samples are critical to understanding BMAA metabolism and limiting human exposure. To date, there have been more than 78 reports on BMAA in cyanobacteria and human samples, but different methods give conflicting data and divergent interpretations in the literature...
June 22, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28642542/the-highly-rearranged-mitochondrial-genomes-of-the-crabs-maja-crispata-and-maja-squinado-majidae-and-gene-order-evolution-in-brachyura
#2
Andrea Basso, Massimiliano Babbucci, Marianna Pauletto, Emilio Riginella, Tomaso Patarnello, Enrico Negrisolo
We sequenced the mitochondrial genomes of the spider crabs Maja crispata and Maja squinado (Majidae, Brachyura). Both genomes contain the whole set of 37 genes characteristic of Bilaterian genomes, encoded on both α- and β-strands. Both species exhibit the same gene order, which is unique among known animal genomes. In particular, all the genes located on the β-strand form a single block. This gene order was analysed together with the other nine gene orders known for the Brachyura. Our study confirms that the most widespread gene order (BraGO) represents the plesiomorphic condition for Brachyura and was established at the onset of this clade...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28640131/paragonimiasis-in-children-in-southwest-china-a-retrospective-case-reports-review-from-2005-to-2016
#3
Zongrong Gong, Ruixue Miao, Min Shu, Yu Zhu, Yang Wen, Qin Guo, Qiong Liao, Chaomin Wan
BACKGROUND: Paragonimiasis infection has no specific symptoms or typical radiologic findings, leading to the possibility of misdiagnosis. Thus, the objective of this study was to analyze clinical and radiological features, and treatment outcome of paragonimiasis in children in Southwest China to improve the awareness of this disease. METHODS: We retrospectively reviewed the records of children diagnosed with paragonimiasis in West China Second University Hospital between 2005 and 2016...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28639134/kifc1-and-myosin-va-two-motors-for-acrosomal-biogenesis-and-nuclear-shaping-during-spermiogenesis-of-portunus-trituberculatus
#4
Dan-Dan Ma, Meng-Ying Pan, Cong-Cong Hou, Fu-Qing Tan, Wan-Xi Yang
To investigate the molecular mechanisms underlying the spermiogenesis of the swimming crab Portunus trituberculatus, full lengths of motor proteins KIFC1 and myosin Va were cloned by rapid-amplification of cDNA ends from P. trituberculatus testes cDNA, and their respective probes and specific antibodies were used to track their localization during sperm maturation. Antisense probes were designed from the gene sequences and used to detect the mRNA levels of each gene. According to the results of fluorescence in situ hybridization (FISH), the transcription of kifc1 and myosin Va began at the mid-stage of spermatids, with the kifc1 mRNA being most active at the location where the acrosome cap was formed and the myosin Va was more concentrated in the acrosome complex...
June 21, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28636147/floral-ambush-in-the-sun-evolution-of-flower-dwelling-and-uv-white-reflectance-in-crab-spiders
#5
Brooke L Weigel
No abstract text is available yet for this article.
June 21, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/28634792/impairments-of-cadmium-on-vitellogenin-accumulation-in-the-hepatopancreas-of-freshwater-crab-sinopotamon-henanense
#6
Jian Yang, Hui Sun, Yu Qian, Jie Yang
During ovary maturation of crabs, vitellogenin (Vg), a precursor molecule of vitellin (Vn) needed for embryogenesis, can be produced in large quantities in the hepatopancreas and then transported to the ovary by the hemolymph. In the present study, effects of Cd on Vg accumulation in the hepatopancreas and Vg transportation of the freshwater crab Sinopotamon henanense were investigated. We also studied the impacts of Cd on the mRNA expression of genes involved in energy metabolism, protein metabolism, and metallothionein (MT) and glutathione (GSH) synthesis...
June 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28633103/dietary-risk-ranking-for-residual-antibiotics-in-cultured-aquatic-products-around-tai-lake-china
#7
Chao Song, Le Li, Cong Zhang, Liping Qiu, Limin Fan, Wei Wu, Shunlong Meng, Gengdong Hu, Jiazhang Chen, Ying Liu, Aimin Mao
Antibiotics are widely used in aquaculture and therefore may be present as a dietary risk in cultured aquatic products. Using the Tai Lake Basin as a study area, we assessed the presence of 15 antibiotics in 5 widely cultured aquatic species using a newly developed dietary risk ranking approach. By assigning scores to each factor involved in the ranking matrices, the scores of dietary risks per antibiotic and per aquatic species were calculated. The results indicated that fluoroquinolone antibiotics posed the highest dietary risk in all aquatic species...
June 17, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28629793/the-effects-of-hypoxia-on-active-ionic-transport-processes-in-the-gill-epithelium-of-hyperregulating-crab-carcinus-maneas
#8
Čedomil Lucu, Andreas Ziegler
Effects of hypoxia on the osmorespiratory functions of the posterior gills of the shore crab Carcinus maenas acclimated to 12ppt seawater (DSW) were studied. Short-circuit current (Isc) across the hemilamella (one epithelium layer supported by cuticle) was substantially reduced under exposure to 1.6, 2.0, or 2.5mg O2/L hypoxic saline (both sides of epithelium) and fully recovered after reoxygenation. Isc was reduced equally in the epithelium exposed to 1.6mg O2/L on both sides and when the apical side was oxygenated and the basolateral side solely exposed to hypoxia...
June 16, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28628611/effects-of-salinity-on-gonadal-development-osmoregulation-and-metabolism-of-adult-male-chinese-mitten-crab-eriocheir-sinensis
#9
Xiaowen Long, Xugan Wu, Lei Zhao, Haihui Ye, Yongxu Cheng, Chaoshu Zeng
As a catadromous species, salinity is a key parameter that affects gonadal development of Chinese mitten crab Eriocheir sinensis during reproductive migration. It is however unclear the effects of salinity on the gonadal development of male E. sinensis as well as their physiological responses to salinity during reproductive migration. This study investigated the effects of four salinities (0 ‰, 6 ‰, 12 ‰ and 18 ‰) on gonadal development, osmoregulation and metabolism of adult male E. sinensis over a 40-day period...
2017: PloS One
https://www.readbyqxmd.com/read/28627439/mitochondrial-prohibitin-and-its-ubiquitination-during-spermatogenesis-of-the-swimming-crab-charybdis-japonica
#10
Ya-Ru Xu, Yun-Shu Fan, Wan-Xi Yang
It has been proposed that prohibitin (PHB) involved in multiple cellular functions, including cell proliferation, differentiation, apoptosis, senescence and carcinogenesis. Various cellular compartment location of PHB demonstrates its diverse roles. Based on the full-length sequence of PHB gene, we analyzed the deduced amino acid sequence and the predicted protein structure of this gene in the swimming crab Charybdis japonica. It shows that the structure and function of PHB are conservative. The expression level of PHB mRNA and protein in different tissues were analyzed by sqRT-PCR and western blot respectively, which showed its high expression in testis...
June 13, 2017: Gene
https://www.readbyqxmd.com/read/28625721/kiloniella-majae-sp-nov-isolated-from-spider-crab-maja-brachydactyla-and-pullet-carpet-shell-clam-venerupis-pullastra
#11
Diego Gerpe, Noemí Buján, Ana L Diéguez, Aide Lasa, Jesús L Romalde
Ten Gram-negative, rod-shaped and motile bacterial strains were isolated from spider crab (M27.10, M27.11a, F36.1, F36.4, M56.1, F76.17b, M146.1, M166.3 and M166.6) and pullet carpet shell clam (SBRF 1.10) collected in the coast of Galicia. Analyses of the 16S rRNA genes showed that the strains belong to the genus Kiloniella and have high similarity with the species Kiloniella spongiae (99.44-99.86%) and Kiloniella litopenaei (99.0-99.5%). Strains M56.1(T) (=CECT 9195, =LMG 29925), M146.1 (=CECT 9193, =LMG 29926) and SBRF 1...
June 10, 2017: Systematic and Applied Microbiology
https://www.readbyqxmd.com/read/28624549/evaluation-of-a-new-trilocus-sequence-based-multiplex-pcr-to-detect-major-acinetobacter-baumannii-clonal-complexes-circulating-in-brazil
#12
Francielli Mahnic de Vasconcellos, Monique Ribeiro Tiba Casas, Laís Calissi Brisolla Tavares, William Vaz de Sousa, Doroti de Oliveira Garcia, Carlos Henrique Camargo
Dissemination of carbapenem-resistant Acinetobacter baumannii (CRAB) is mainly due to the spread of clonal lineages, particularly those included into the clonal complexes (CC) CC1, CC2, CC15, CC25, and CC79. We evaluated the usefulness of a recently modified PCR-based trilocus sequence-based typing (m3LST) in comparison with the standard multilocus sequence typing (MSLT) of 7 housekeeping genes as per the Institute Pasteur Scheme to assign the clonal complexes in CRAB. A collection of 78 CRAB isolated from 67 different Brazilian health institutions was submitted to both methodologies, and concordance rate was calculated...
June 14, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28620315/you-are-what-you-eat-a-genomic-analysis-of-the-gut-microbiome-of-captive-and-wild-octopus-vulgaris-paralarvae-and-their-zooplankton-prey
#13
Álvaro Roura, Stephen R Doyle, Manuel Nande, Jan M Strugnell
The common octopus (Octopus vulgaris) is an attractive species for aquaculture, however, several challenges inhibit sustainable commercial production. Little is known about the early paralarval stages in the wild, including diet and intestinal microbiota, which likely play a significant role in development and vitality of this important life stage. High throughput sequencing was used to characterize the gastrointestinal microbiome of wild O. vulgaris paralarvae collected from two different upwelling regions off the coast of North West Spain (n = 41) and Morocco (n = 35)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28618219/hierarchical-microspheres-constructed-from-chitin-nanofibers-penetrated-hydroxyapatite-crystals-for-bone-regeneration
#14
Bo Duan, Kangquan Shou, Xiaojuan Su, Yahui Niu, Guan Zheng, Yao Huang, Ai-Xi Yu, Yu Zhang, Hong Xia, Lina Zhang
Chitin exists abundantly in the crab and shrimp shell as the template of the minerals, which inspired us to mineralize it for fabricating the bone grafting materials. In present work, chitin nanofibrous microspheres were used as the matrix for in situ synthesisof the hydroxyapatite (HA) crystals including micro-flake, submicron-needle and submicron-osphere, which were penetrated by long chitin nanofibers, leading to the hierarchical structure. The shape and size of the HA crystals could be controled by changing the HA synthesisprocess...
June 15, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28616177/the-effects-of-elevated-temperature-and-dissolved-%C3%AF-co2-on-a-marine-foundation-species
#15
Cori J Speights, Brian R Silliman, Michael W McCoy
Understanding how climate change and other environmental stressors will affect species is a fundamental concern of modern ecology. Indeed, numerous studies have documented how climate stressors affect species distributions and population persistence. However, relatively few studies have investigated how multiple climate stressors might affect species. In this study, we investigate the impacts of how two climate change factors affect an important foundation species. Specifically, we tested how ocean acidification from dissolution of CO 2 and increased sea surface temperatures affect multiple characteristics of juvenile eastern oysters (Crassostrea virginica)...
June 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28614422/characterization-of-oxidative-stress-biomarkers-in-a-freshwater-anomuran-crab
#16
A C P Borges, J F G Piassão, M O Paula, S Sepp, C F S Bez, L U Hepp, A T Valduga, A A Mielniczki Pereira, R L Cansian
In general, environmental responses at level of populations or communities are preceded by alterations at lower biological levels which can be efficiently detected by the analysis of biomarkers. We analyzed the oxidative biomarkers TBARS and Catalase in Aegla singularis, a freshwater crustacean highly sensitive to environmental changes. The objective was to address if are differences in these biomarkers related to the gender as well if they are influenced by seasonal or water physicochemical variables. The results showed differences in biomarkers profile related to the gender...
June 12, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/28612229/metal-accumulations-in-water-sediment-crab-callinectes-sapidus-and-two-fish-species-mugil-cephalus-and-anguilla-anguilla-from-the-k%C3%A3-yce%C3%A4-iz-lagoon-system-turkey-an-index-analysis-approach
#17
Tuncer Okan Genç, Fevzi Yilmaz
The concentrations of six metals (Hg, Cd, Cu, Pb, Cr and Zn) individual total metal load (IMBI) values and its relation to condition index were determined in water, sediment and tissues of crab (Callinectes sapidus) and two fish species (Mugil cephalus and Anguilla anguilla) inhabiting Köyceğiz Lagoon System. The average distribution of the IMBI values ranged from 0.033 to 0.265. Distribution patterns of IMBI in species follow the sequence: A. anguilla > M. cephalus > C. sapidus. Results showed that there are positive relationships between species sizes and metal levels in most cases...
June 13, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28611408/phylogeography-of-petrolisthes-armatus-an-invasive-species-with-low-dispersal-ability
#18
Alexandra Hiller, Harilaos A Lessios
Theoretically, species with high population structure are likely to expand their range, because marginal populations are free to adapt to local conditions; however, meta-analyses have found a negative relation between structure and invasiveness. The crab Petrolisthes armatus has a wide native range, which has expanded in the last three decades. We sequenced 1718 bp of mitochondrial DNA from native and recently established populations to determine the population structure of the former and the origin of the latter...
June 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28610321/enneophyllus-ecarina-a-new-species-of-scaphopod-shell-dwelling-hermit-crab-crustacea-decapoda-anomura-paguridae-from-deep-sea-off-the-ryukyu-islands-southern-japan
#19
Tomoyuki Komai
A second species of the pagurid genus Enneophyllus McLaughlin, 1997, E. ecarina n. sp., is described and illustrated on the basis of two specimens collected from the upper bathyal depths off Amami-ohshima Island, Ryukyu Islands, southern Japan. The new species is immediately distinguished from the sole known congener, E. spinirostris McLaughlin, 1997, from the Banda Sea, Indonesia, by the non-operculiform right chela and fewer ventral spiniform setae of the ambulatory dactyli. The type species of Enneophillus, E...
May 24, 2017: Zootaxa
https://www.readbyqxmd.com/read/28610306/typhlocarcinus-kerala-a-new-species-of-rhizopine-crab-from-southwestern-india-and-the-identity-of-t-craterifer-rathbun-1914-crustacea-brachyura-pilumnidae
#20
Peter K L Ng, Suvarna Devi, Appukuttannair Biju Kumar
A new species of rhizopine crab of the genus Typhlocarcinus Stimpson, 1858 (family Pilumnidae), is described from southwestern India. Typhlocarcinus kerala sp. nov. is characterised by its granular carapace with the dorsal regions well demarcated and the gastro-cardiac grooves deep, the anterolateral margin entire and prominently granulated, the posterolateral margin lacks a low granulated lobe, proportions of the ambulatory legs and shape of the female telson.
May 26, 2017: Zootaxa
keyword
keyword
24141
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"