Read by QxMD icon Read


Suresh P Benjamin
The crab spider genus Angaeus Thorell, 1881 currently contains 10 described species (Benjamin 2013; WSC 2017). All species of the genus are restricted to tropical Asia. The aim of this correspondence is to illustrate and describe a new species of the genus characterized by a number of features previously found in the genera Angaeus, Borboropactus Simon, 1884, Epidius Thorell, 1877 and Geraesta Simon, 1889. The most unusual feature is the elongated tibia of the male palp that was previously thought to be diagnostic of Epidius (Figs 1, 2, 8; character 1 in Benjamin 2011; Benjamin 2017)...
October 17, 2017: Zootaxa
Sarunyou Chusri, Ittichai Sakarunchai, Narongdet Kositpantawong, Siripen Panthuwong, Wichai Santimaleeworagun, Sutthiporn Pattharachayakul, Kamonnut Singkhamanan, Yohei Doi
The efficacy and safety of intrathecal or intraventricular (ITH/IVT) colistin in addition to intravenous (IV) colistin for meningitis and ventriculitis due to carbapenem-resistant Acinetobacter baumannii (CRAB) is unclear. In this retrospective observational study of 40 patients with post-neurosurgical meningitis and ventriculitis due to CRAB, 33 patients without concomitant infection received appropriate dosage regimens of IV colistin. Seventeen of the 33 patients received additional ITH/IVT colistin and 16 patients received only IV colistin...
December 11, 2017: International Journal of Antimicrobial Agents
Chia-Feng Yang, Chen-Chang Yang, I-Jen Wang
BACKGROUND: Increasing prevalence of allergic diseases has been matched by parallel trends in attention-deficit/hyperactivity disorder (ADHD). However, previous studies concerning the association between ADHD and allergic diseases have been inconsistent. Moreover, it is not clear whether this association is modified by allergic sensitization status. Therefore, we evaluated the association between allergic diseases, allergic sensitization, and ADHD in children. METHODS: We conducted a large-scale cross-sectional, population-based survey to investigate the relationship between allergic diseases, allergic sensitization, and ADHD...
November 24, 2017: Journal of the Chinese Medical Association: JCMA
Zhe Qu, William G Bendena, Wenyan Nong, Kenneth W Siggens, Fernando G Noriega, Zhen-Peng Kai, Yang-Yang Zang, Alex C Koon, Ho Yin Edwin Chan, Ting Fung Chan, Ka Hou Chu, Hon Ming Lam, Michael Akam, Stephen S Tobe, Jerome Ho Lam Hui
Arthropods comprise the majority of all described animal species, and understanding their evolution is a central question in biology. Their developmental processes are under the precise control of distinct hormonal regulators, including the sesquiterpenoids juvenile hormone (JH) and methyl farnesoate. The control of the synthesis and mode of action of these hormones played important roles in the evolution of arthropods and their adaptation to diverse habitats. However, the precise roles of non-coding RNAs, such as microRNAs (miRNAs), controlling arthropod hormonal pathways are unknown...
December 20, 2017: Proceedings. Biological Sciences
João Costa Filho, Sérgio Jorge, Frederico Schmitt Kremer, Natasha Rodrigues de Oliveira, Vinicius Farias Campos, Luciano da Silva Pinto, Odir Antônio Dellagostin, Rubens Galdino Feijó, Francisca Gleire Rodrigues de Menezes, Oscarina Viana de Sousa, Rodrigo Maggioni, Luis Fernando Marins
Bacillus cereus is a gram positive bacterium with sporulation capacity. Here, we report the complete genome sequence of two native B. cereus strains (#25 and #29) isolated from intestinal tract of the crab Ucides sp. from Pacoti River in the State of Ceará, Brazil. The findings of this study might increase the molecular information for Bacillus strains. The data can be used in comparative analyses, origin and distribution, as well support for genetic engineering.
February 2018: Data in Brief
Ranjit Sah, Shusila Khadka
Paragonimiasis is an important food-borne parasitic zoonosis caused by trematodes of genus Paragonimus. We report case series of paragonimiasis with common symptoms of cough with blood tinged sputum, shortness of breath, chest pain with occasional fever, eosinophilia and radiological findings mimicking pulmonary tuberculosis and had taken anti-tubercular drug despite all investigation negative for tuberculosis without improvement. They all had common history of consumption of raw/undercooked crab. There is a local belief in remote villages of Nepal that eating raw crab helps in healing bone fracture and cure jaundice...
November 2017: Oxford Medical Case Reports
Cong-Cong Hou, Chao-Guang Wei, Cheng-Peng Lu, Xin-Ming Gao, Wan-Xi Yang, Jun-Quan Zhu
The sperm of Eriocheir sinensis has a cup-shaped nucleus that contains several mitochondria embedded at the opening of the cup. The acrosome vesicle also contains derivants of mitochondria. The mitochondria distribution pattern involves a decrease in the number and changes in the structure and transportation of these organelles. The decreased number of sperm mitochondria is achieved through autophagy or the ubiquitination pathway. Prohibitin (PHB), the mitochondria inner membrane protein, is an evolutionarily highly conserved protein, is closely associated with spermatogenesis and sperm quality control and is also a potential substrate of ubiquitination...
November 17, 2017: Oncotarget
Sara Fratini, Lapo Ragionieri, Stefano Cannicci
[This corrects the article DOI: 10.1371/journal.pone.0158582.].
2017: PloS One
Emiliano H Ocampo, Tomás A Luppi, Eduardo D Spivak, Sebastian Klaus
The knowledge of the mating system of pea crabs is still fragmentary as it remains dubious whether females copulate in the juvenile and free-living 'hard' or in the obligatory symbiotic stages (adult stage 'V' or intermediate stages II to IV). To discriminate between these two possibilities, we analysed the female seminal receptacles, vagina and opercula, and the sperm content in different stages of the pea crab Calyptraeotheres garthi. Our histology and scanning electron microscopy results revealed that in the hard stage the seminal receptacle is simple without secretory epithelia, and vagina and opercula are not controlled by musculature...
December 11, 2017: Journal of Morphology
Kohei Okamoto, Haruhiko Yasumuro, Akira Mori, Yuzuru Ikeda
Cephalopods are able to control their arms sophisticatedly and use them for various behaviors, such as camouflage, startling predators and hunting prey. Here, we report a previously undescribed arm-flapping behavior of the pharaoh cuttlefish, Sepia pharaonis, observed in captivity. S. pharaonis raised the first pair of arms and wrinkled the parts near the distal end, where the skin color was darkened. Additionally, S. pharaonis spread the second and third pairs of arms and bent them as if they were jointed, and flapped the distal ends...
2017: Journal of Ethology
Saori Okamura, Takuma Kawaminami, Hiroshi Matsuura, Nobuhiro Fusetani, Seiji Goshima
Males of the hermit crab Pagurus filholi perform assessment behavior toward females, as a preliminary step of precopulatory guarding, during the reproductive season. It is known that such behavior is elicited by female sex pheromones, but the compounds involved have never been characterized in this species. Several experiments were conducted to develop a reliable bioassay along with purification procedures to identify potential compounds with pheromonal activity in Pagurus filholi. We developed a bioassay protocol to assess pheromonal activity by using an empty shell with cotton containing either artificial seawater (control) or test water...
2017: Journal of Ethology
Dominique A Cowart, Katherine R Murphy, C-H Christina Cheng
The West Antarctic Peninsula (WAP) is the fastest warming region in Antarctica where climate impact on the cold-adapted marine ecosystem is already visible. To monitor faunal changes in remote vast bodies of Antarctic waters, efficient and informative tools are essential. High-throughput sequencing of environmental DNA (eDNA) has emerged as one such tool for monitoring biodiversity and ecosystems, as it increases detection sensitivity of taxa, and sampling is often simpler and less costly than traditional collection methods...
December 6, 2017: Marine Genomics
Juliane Vehof, Gerhard Scholtz, Carola Becker
Two fundamentally different sperm storage organs occur in Brachyura. The probably paraphyletic podotremes show intersegmental spermathecae, which are distant from oviducts and coxal gonopores. Hence, fertilization is external. In contrast to this, the seminal receptacles of Eubrachyura are directly connected with the ovaries. Thus, at least initial fertilization is internal. This pattern has been interpreted as an apomorphy of Eubrachyura. To test this hypothesis, we studied the morphology of the reproductive organs of Paradorippe granulata, a representative of the putatively early diverging eubrachyuran lineage Dorippoidea...
December 5, 2017: Arthropod Structure & Development
Margot Hessing-Lewis, Erin U Rechsteiner, Brent B Hughes, M Tim Tinker, Zachary L Monteith, Angeleen M Olson, Matthew Morgan Henderson, Jane C Watson
Comparing sea otter recovery in California (CA) and British Columbia (BC) reveals key ecosystem properties that shape top-down effects in seagrass communities. We review potential ecosystem drivers of sea otter foraging in CA and BC seagrass beds, including the role of coastline complexity and environmental stress on sea otter effects. In BC, we find greater species richness across seagrass trophic assemblages. Furthermore, Cancer spp. crabs, an important link in the seagrass trophic cascade observed in CA, are less common...
December 5, 2017: Marine Pollution Bulletin
Dan-Dan Tu, Yi-Lian Zhou, Wen-Bin Gu, Qi-Hui Zhu, Bin-Peng Xu, Zhong-Kai Zhou, Ze-Peng Liu, Cong Wang, Yu-Yin Chen, Miao-An Shu
The peroxiredoxins (Prxs) define a novel and evolutionarily conserved superfamily of peroxidases able to protect cells from oxidative damage by catalyzing the reduction of a wide range of cellular peroxides. Prxs have been identified in prokaryotes as well as in eukaryotes, however, the composition and number of Prxs family members vary in different species. In this study, six Prxs were firstly identified from the mud crab Scylla paramamosain by RT-PCR and RACE methods. Six SpPrxs can be subdivided into three classes: (a) three typical 2-Cys enzymes denominated as Prx1/2, 3, 4, (b) two atypical 2-Cys enzymes known as Prx5-1 and Prx5-2, and (c) a 1-Cys isoform named Prx6...
December 4, 2017: Molecular Immunology
John G Kirk, Gwenael Giacinti
We show that the mysterious, rapidly variable emission at ∼400  MeV observed from the Crab Nebula by the AGILE and Fermi satellites could be the result of a sudden drop in the mass loading of the pulsar wind. The current required to maintain wave activity in the wind is then carried by very few particles of a high Lorentz factor. On impacting the nebula, these particles produce a tightly beamed, high-luminosity burst of hard gamma rays, similar to those observed. This implies that (i) the emission is synchrotron radiation in the toroidal field of the nebula and, therefore, linearly polarized and (ii) this mechanism potentially contributes to the gamma-ray emission from other powerful pulsars, such as the Magellanic Cloud objects J0537-6910 and B0540-69...
November 24, 2017: Physical Review Letters
Giulia Poma, Svetlana V Malysheva, Séverine Goscinny, Govindan Malarvannan, Stefan Voorspoels, Adrian Covaci, Joris Van Loco
This paper reports on the occurrence of halogenated flame retardants (HFRs), namely PBDEs, HBCDs, TBBPA, brominated phenols (BrPhs), dechlorane plus (DP) and emerging FRs in a variety of Belgian foodstuffs. A total of 183 composite food samples were analyzed by GC-MS and LC-MS/MS techniques for the presence of HFRs. The analyses revealed that 72% of the samples was contaminated with HFRs to some extent. The highest number of contaminated samples was observed within the group 'Potatoes and derived products', 'Fish and fish products' and 'Meat and meat products', while the least contaminated group was 'Food for infants and small children'...
December 1, 2017: Chemosphere
J Vélez, J Ramírez, O Aristizábal
The crab-eating fox (Cerdocyon thous) is a wild canid distributed throughout South America. It is one of the wild canids reported being hit by vehicles and injured in snares, thus inducing trauma or injury to the musculoskeletal system, possibly occurring in the brachial region. The main objective of this research was to provide an anatomic description of the crab-eating fox's intrinsic brachial muscles including shape, origin, insertion, innervation and arterial blood supply, compared with that of the domestic dog...
December 6, 2017: Anatomia, Histologia, Embryologia
Tamzin A Blewett, Greg G Goss
Estuaries are environments enriched with dissolved nutrients such as amino acids. To date, marine arthropods are the only invertebrate group that have not been demonstrated to access this potentially important nutrient resource. Using in vitro gill perfusion techniques, we sought to investigate the ability of the green shore crab (Carcinus maenas) to take up the amino acid l-leucine directly from the water. Investigation of the concentration-dependent transport kinetics of radiolabelled l-leucine showed that there are two specific transport pathways across Carcinus gills, one with high affinity and low capacity, and the other with high capacity and low affinity...
December 6, 2017: Proceedings. Biological Sciences
Paul Prociv, Megan Turner
Infection with the Rat Lungworm Angiostrongylus cantonensis is the leading cause of human eosinophilic meningoencephalitis worldwide. From its origins in southeastern Asia, the parasite was spread extensively throughout the twentieth century and is now established in many of the world's warmer regions. Its clinical effects range from mild and transient symptoms, usually headache with peripheral nerve dysfunction, to severe and permanent central nervous system (CNS) damage, occasionally fatal. The severity and prognosis of disease are determined by the larval dose, acquired by ingesting infected intermediate hosts (slugs and snails) or, less often, paratenic hosts, such as crabs, shrimps, frogs, and monitor lizards...
December 4, 2017: American Journal of Tropical Medicine and Hygiene
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"