keyword
MENU ▼
Read by QxMD icon Read
search

Octopus

keyword
https://www.readbyqxmd.com/read/28108174/experimental-infection-of-octopus-vulgaris-cuvier-1797-with-photobacterium-damsela-subsp-piscicida-immunohistochemical-tracking-of-antigen-and-tissue-responses
#1
Vasileios Bakopoulos, Daniella White, Michail-Aggelos Valsamidis, Feli Vasilaki
Adult common octopus individuals were intramuscularly infected with Photobacterium damsela subsp. piscicida in order to investigate if this species is sensitive to this common and important fish pathogen. The fate of the bacterial antigens and the tissue responses of Octopus vulgaris were studied employing immunohistochemical techniques. Strong reaction at the site of injection was evident from day 2 post-infection that continued until day 14. Great numbers of hemocytes that were attracted at the site of infection were involved in phagocytosis of bacteria...
January 17, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28087073/abnormal-mortality-of-octopus-after-a-storm-water-event-accumulated-lead-and-lead-isotopes-as-fingerprints
#2
J Raimundo, F Ruano, J Pereira, M Mil-Homens, P Brito, C Vale, M Caetano
Octopus vulgaris is a sedentary organism that inhabits coastal waters being exposed to anthropogenic compounds. Lead concentration in coastal environments reflects many processes and activities namely weathering, industrial and domestic discharges, and atmospheric deposition. Since lead isotopic composition is little affected by kinetic processes occurring between source and sink, its signature has been used to identify different Pb sources. After a short-term heavy rainfall, hundreds of octopus appeared dead in two Portuguese coastal areas...
January 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28065805/genetic-perturbations-suggest-a-role-of-the-resting-potential-in-regulating-the-expression-of-the-ion-channels-of-the-kcna-and-hcn-families-in-octopus-cells-of-the-ventral-cochlear-nucleus
#3
Xiao-Jie Cao, Donata Oertel
Low-voltage-activated K(+) (gKL) and hyperpolarization-activated mixed cation conductances (gh) mediate currents, IKL and Ih, through channels of the Kv1 (KCNA) and HCN families respectively and give auditory neurons the temporal precision required for signaling information about the onset, fine structure, and time of arrival of sounds. Being partially activated at rest, gKL and gh contribute to the resting potential and shape responses to even small subthreshold synaptic currents. Resting gKL and gh also affect the coupling of somatic depolarization with the generation of action potentials...
January 5, 2017: Hearing Research
https://www.readbyqxmd.com/read/28064377/octopus-a-platform-for-the-virtual-high-throughput-screening-of-a-pool-of-compounds-against-a-set-of-molecular-targets
#4
Eduardo Habib Bechelane Maia, Vinícius Alves Campos, Bianca Dos Reis Santos, Marina Santos Costa, Iann Gabriel Lima, Sandro J Greco, Rosy I M A Ribeiro, Felipe M Munayer, Alisson Marques da Silva, Alex Gutterres Taranto
Octopus is an automated workflow management tool that is scalable for virtual high-throughput screening (vHTS). It integrates MOPAC2016, MGLTools, PyMOL, and AutoDock Vina. In contrast to other platforms, Octopus can perform docking simulations of an unlimited number of compounds into a set of molecular targets. After generating the ligands in a drawing package in the Protein Data Bank (PDB) format, Octopus can carry out geometry refinement using the semi-empirical method PM7 implemented in MOPAC2016. Docking simulations can be performed using AutoDock Vina and can utilize the Our Own Molecular Targets (OOMT) databank...
January 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28042769/discovery-of-an-unexplored-protein-structural-scaffold-of-serine-protease-from-big-blue-octopus-octopus-cyanea-a-new-prospective-lead-molecule
#5
Subhamay Panda, Leena Kumari
BACKGROUND: Serine proteases are a group of enzymes that hydrolyses the peptide bonds in proteins. In mammals, these enzymes help in the regulation of several major physiological functions such as digestion, blood clotting, responses of immune system, reproductive functions and the complement system. OBJECTIVE: Serine proteases obtained from the venom of Octopodidae family is a relatively unexplored area of research. In the present work, we tried to effectively utilize comparative composite molecular modeling technique...
January 2, 2017: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/27992549/molecular-characterization-and-functional-analysis-of-a-putative-octopamine-tyramine-receptor-during-the-developmental-stages-of-the-pacific-oyster-crassostrea-gigas
#6
Peng Ji, Fei Xu, Baoyu Huang, Yingxiang Li, Li Li, Guofan Zhang
Octopamine (OA) and its precursor, tyramine (TA), participate in invertebrate development such as growth, maturation, and reproduction by activating their corresponding G protein-coupled receptors (GPCRs). Although OA was first discovered in mollusks (octopus), subsequent studies on OA, TA and related receptors have primarily been conducted in Ecdysozoa, especially in insects. Accordingly, only limited reports on OA/TA receptors in mollusks are available and their physiological roles remain unclear. Here, a full-length cDNA encoding a putative 524 amino acid OA/TA receptor (CgGPR1) was isolated from the Pacific oyster Crassostrea gigas...
2016: PloS One
https://www.readbyqxmd.com/read/27984163/risk-assessment-of-methylmercury-in-five-european-countries-considering-the-national-seafood-consumption-patterns
#7
Silke Jacobs, Isabelle Sioen, Liesbeth Jacxsens, José L Domingo, Jens J Sloth, António Marques, Wim Verbeke
Although seafood is a nutritious protein source, due to marine environmental pollution, seafood may also be a source of contaminants. The results obtained within the FP7-ECsafeSEAFOOD-project show that among the range of studied environmental contaminants certainly methylmercury (MeHg) requires deeper investigation. This paper presents the results of a probabilistic risk assessment for MeHg based on: (1) primary concentration data, as well as secondary data from published papers, and (2) primary species-specific consumption data collected in five European countries (Belgium, Ireland, Italy, Portugal and Spain)...
October 27, 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27973245/project-octo-pills-management-of-polypharmacy-and-drug-related-problems-from-hospital-to-community-pharmacies-an-octopus-initiative-for-the-silver-tsunami
#8
Y T Low, Z Y Neo, B K Chong, K Y Ong, K W Lim, G E Heng, M Chan, W L Chung, Z N Lim, D Teo, J A Wong, M C Tan, M C Kong, K Mamun, L L Chen
No abstract text is available yet for this article.
November 2016: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/27864460/use-of-the-octopus-endograft-technique-to-reconstruct-renovisceral-arteries-arising-from-the-false-lumen-of-a-rapidly-expanding-type-b-aortic-dissection-after-endovascular-repair
#9
Jiang Xiong, Yangyang Ge, Xiaoping Liu, Lijun Wang, Wei Guo
PURPOSE: To describe the use and 6-month outcomes of the octopus endograft technique to reconstruct renovisceral arteries arising from the false lumen (FL) of a type B aortic dissection after thoracic endovascular aortic repair (TEVAR). CASE REPORT: A 46-year-old man post TEVAR for type B aortic dissection was admitted with persistent back pain and a rapidly expanding residual dissection. The celiac and left renal arteries arose from the FL and the superior mesenteric artery from both lumens, with the FL as its main supply...
February 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/27858208/a-cable-driven-soft-robot-surgical-system-for-cardiothoracic-endoscopic-surgery-preclinical-tests-in-animals
#10
Hesheng Wang, Runxi Zhang, Weidong Chen, Xiaozhou Wang, Rolf Pfeifer
BACKGROUND: Minimally invasive surgery attracts more and more attention because of the advantages of minimal trauma, less bleeding and pain and low complication rate. However, minimally invasive surgery for beating hearts is still a challenge. Our goal is to develop a soft robot surgical system for single-port minimally invasive surgery on a beating heart. MATERIALS AND METHODS: The soft robot described in this paper is inspired by the octopus arm. Although the octopus arm is soft and has more degrees of freedom (DOFs), it can be controlled flexibly...
November 17, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/27857487/macular-thickness-assessment-in-patients-with-glaucoma-and-its-correlation-with-visual-fields
#11
Mafalda Mota, Fernando T Vaz, Mário Ramalho, Catarina Pedrosa, Maria Lisboa, Paulo Kaku, Florindo Esperancinha
AIM: To determine the relationship between macular thickness (MT) and visual field (VF) parameters, as well as with changes in the retinal nerve fiber layer (RNFL) thickness in patients with glaucoma and ocular hypertension (OH). MATERIALS AND METHODS: Cross-sectional statistical analysis of spectral domain optical coherence tomography (SD-OCT) compared with several VF parameters (mean defect - MD and loss variance - LV), in a nonrandom sample of 70 eyes from patients with glaucoma or OH...
September 2016: Journal of Current Glaucoma Practice
https://www.readbyqxmd.com/read/27834960/diagnostic-ability-of-humphrey-perimetry-octopus-perimetry-and-optical-coherence-tomography-for-glaucomatous-optic-neuropathy
#12
B Monsalve, A Ferreras, P Calvo, J A Urcola, M Figus, J Monsalve, P Frezzotti
PurposeTo evaluate and compare the diagnostic accuracy of the Humphrey Field Analyzer (HFA), Octopus perimetry, and Cirrus OCT for glaucomatous optic neuropathy.MethodsEighty-eight healthy individuals and 150 open-angle glaucoma patients were consecutive and prospectively selected. Eligibility criteria for the glaucoma group were intraocular pressure ≥21 mm Hg and glaucomatous optic nerve head morphology. All subjects underwent a reliable standard automated perimetry with the HFA and Octopus perimeter, and were imaged with the Cirrus OCT...
November 11, 2016: Eye
https://www.readbyqxmd.com/read/27829039/early-mode-of-life-and-hatchling-size-in-cephalopod-molluscs-influence-on-the-species-distributional-ranges
#13
Roger Villanueva, Erica A G Vidal, Fernando Á Fernández-Álvarez, Jaruwat Nabhitabhata
Cephalopods (nautiluses, cuttlefishes, squids and octopuses) exhibit direct development and display two major developmental modes: planktonic and benthic. Planktonic hatchlings are small and go through some degree of morphological changes during the planktonic phase, which can last from days to months, with ocean currents enhancing their dispersal capacity. Benthic hatchlings are usually large, miniature-like adults and have comparatively reduced dispersal potential. We examined the relationship between early developmental mode, hatchling size and species latitudinal distribution range of 110 species hatched in the laboratory, which represent 13% of the total number of live cephalopod species described to date...
2016: PloS One
https://www.readbyqxmd.com/read/27829030/smaller-fixation-target-size-is-associated-with-more-stable-fixation-and-less-variance-in-threshold-sensitivity
#14
Kazunori Hirasawa, Kana Okano, Risako Koshiji, Wakana Funaki, Nobuyuki Shoji
The aims of this randomized observational case control study were to quantify fixation behavior during standard automated perimetry (SAP) with different fixation targets and to evaluate the relationship between fixation behavior and threshold variability at each test point in healthy young participants experienced with perimetry. SAP was performed on the right eyes of 29 participants using the Octopus 900 perimeter, program 32, dynamic strategy. The fixation targets of Point, Cross, and Ring were used for SAP...
2016: PloS One
https://www.readbyqxmd.com/read/27815676/-recovery-time-as-a-potential-new-progression-parameter-for-patients-with-advanced-glaucomatous-optic-atrophy
#15
B Hohberger, S Mißlinger, F Horn, J Kremers
BACKGROUND: Functional tests in glaucoma diagnosis can monitor a potential perimetric progression. However white-on-white perimetry is limited in advanced glaucoma, whereas contrasts were detected reproducibly. Especially when stressing (i. e. adapting) the visual system, subsequent measurements yielded different results-the visual system needs a "recovery time". In the present study the recovery time was investigated in patients with advanced glaucoma. Additionally correlation analysis was done with standard perimetric parameters...
November 4, 2016: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/27796978/metal-bioaccumulation-in-two-edible-cephalopods-in-the-gulf-of-gabes-south-eastern-tunisia-environmental-and-human-health-risk-assessment
#16
Lotfi Rabaoui, Radhouan El Zrelli, Rafik Balti, Lamjed Mansour, Pierre Courjault-Radé, Nabil Daghbouj, Sabiha Tlig-Zouari
Samples of Octopus vulgaris and Sepia officinalis were collected from four areas in the Gulf of Gabes, south-eastern Tunisia, and their edible tissues (mantle and arms) were analyzed for cadmium, copper, mercury, and zinc. While the concentrations of metals showed significant differences between the sampling sites, no differences were revealed between the tissues of the two species. The spatial distribution of metals analyzed showed similar pattern for both tissues of the two species, with the highest concentrations found in the central area of Gabes Gulf, and the lowest in the northern and/or southern areas...
October 28, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27789418/birbeck-granules-worm-like-bodies-and-lupus-erythematosus-virus
#17
Ken Hashimoto, Hiroshi Fujiwara, Keiko Fujiwara
The origin of worm-like bodies and their relationship with Birbeck granules is poorly understood. To clarify the origin of worm-like bodies and their relationship with Birbeck granules. Over 800 electron micrographs of histiocytic disorders and several appendage tumours were reviewed in order to check for worm-like bodies and Birbeck granules. Worm-like bodies were most often encountered in mildly- to moderately-proliferative histiocytic tumours. Birbeck granules were observed in more malignant conditions. Narrow endoplasmic reticulum (Nrer), which resembles worm-like bodies, was abundant in worm-like body-rich cells and coexisted with Birbeck rods...
October 1, 2016: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/27780070/evolution-of-highly-diverse-forms-of-behavior-in-molluscs
#18
Binyamin Hochner, David L Glanzman
Members of the phylum Mollusca demonstrate the animal kingdom's tremendous diversity of body morphology, size and complexity of the nervous system, as well as diversity of behavioral repertoires, ranging from very simple to highly flexible. Molluscs include Solenogastres, with their worm-like bodies and behavior (see phylogenetic tree; Figure 1); Bivalvia (mussels and clams), protected by shells and practically immobile; and the cephalopods, such as the octopus, cuttlefish and squid. The latter are strange-looking animals with nervous systems comprising up to half a billion neurons, which mediate the complex behaviors that characterize these freely moving, highly visual predators...
October 24, 2016: Current Biology: CB
https://www.readbyqxmd.com/read/27770316/can-fishing-pressure-invert-the-outcome-of-interspecific-competition-the-case-of-the-thiof-and-of-the-octopus-along-the-senegalese-coast
#19
Thuy Nguyen-Phuong, Doanh Nguyen-Ngoc, Pierre Auger, Sidy Ly, Didier Jouffre
We present a mathematical model of two competing marine species that are harvested. We consider three models according to different levels of complexity, without and with species refuge and density-independent and density-dependent species movement between fishing area and refuge. We particularly study the effects of the fishing pressure on the outcome of the competition. We focus on conditions that allow an inferior competitor to invade as a result of fishing pressure. The model is discussed in relationship to the case of the thiof and the octopus along the Atlantic West African coast...
December 2016: Acta Biotheoretica
https://www.readbyqxmd.com/read/27733834/neuroendocrine-immune-systems-response-to-environmental-stressors-in-the-cephalopod-octopus-vulgaris
#20
REVIEW
Anna Di Cosmo, Gianluca Polese
Under a continuous changing environment, animals are challenged with stresses and stimuli which demanding adaptation at behavioral and physiological levels. The adaptation strategies are finely regulated by animal nervous, endocrine, and immune systems. Although it's been established by now the usage of integrative approach to the study the endocrine and nervous systems (neuroendocrine), yet our understanding of how they cooperate with the immune system remains far from complete. The possible role that immune system plays as a component of the network has only been recognized recently...
2016: Frontiers in Physiology
keyword
keyword
66105
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"