keyword
MENU ▼
Read by QxMD icon Read
search

Hemolymph

keyword
https://www.readbyqxmd.com/read/28095489/transgenic-expression-of-the-anti-parasitic-factor-tep1-in-the-malaria-mosquito-anopheles-gambiae
#1
Gloria Volohonsky, Ann-Katrin Hopp, Mélanie Saenger, Julien Soichot, Heidi Scholze, Jens Boch, Stéphanie A Blandin, Eric Marois
Mosquitoes genetically engineered to be resistant to Plasmodium parasites represent a promising novel approach in the fight against malaria. The insect immune system itself is a source of anti-parasitic genes potentially exploitable for transgenic designs. The Anopheles gambiae thioester containing protein 1 (TEP1) is a potent anti-parasitic protein. TEP1 is secreted and circulates in the mosquito hemolymph, where its activated cleaved form binds and eliminates malaria parasites. Here we investigated whether TEP1 can be used to create malaria resistant mosquitoes...
January 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28094452/the-dipteran-parasitoid-exorista-bombycis-induces-pro-and-anti-oxidative-reactions-in-the-silkworm-bombyx-mori-enzymatic-and-genetic-analysis
#2
Pooja Makwana, Appukuttan Nair R Pradeep, Shambhavi P Hungund, Kangayam M Ponnuvel, Kanika Trivedy
Hymenopteran parasitoids inject various factors including polydnaviruses along with their eggs into their host insects that suppress host immunity reactions to the eggs and larvae. Less is known about the mechanisms evolved in dipteran parasitoids that suppress host immunity. Here we report that the dipteran, Exorista bombycis, parasitization leads to pro-oxidative reactions and activation of anti-oxidative enzymes in the silkworm Bombyx mori larva. We recorded increased activity of oxidase, superoxide dismutase, thioredoxin peroxidase, catalase, glutathione-S-transferase (GST), and peroxidases in the hemolymph plasma, hemocytes, and fat body collected from B...
January 17, 2017: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/28089897/crustacean-hyperglycemic-hormones-directly-modulate-the-immune-response-of-hemocytes-in-shrimp-litopenaeus-vannamei
#3
Lin Wang, Hao Chen, Jianchao Xu, Qingsong Xu, Mengqiang Wang, Depeng Zhao, Lingling Wang, Linsheng Song
A robust immune response against invading pathogens is crucial for host to survive, which depends greatly on the well balance of metabolism. Increasing evidence has indicated that some metabolic hormones, such as insulin, could modulate immune responses directly. Crustacean hyperglycemic hormone (CHH) family is a group of ecdysozoans-specific peptide hormone involved in glucose metabolism and other biological events. In the present study, two members of CHH family (designated as LvCHH I and LvCHH II) in shrimp Litopenaeus vannamei with one and two crustacean neurohormone domains respectively were chosen to investigate their putative modulatory roles in both glucose metabolism and immune response...
January 9, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28089883/identification-and-characterization-of-a-pyridoxal-5-phosphate-phosphatase-in-the-silkworm-bombyx-mori
#4
ShuoHao Huang, CaiYun Han, ZhenQiao Ma, Jie Zhou, JianYun Zhang, LongQuan Huang
Vitamin B6 comprises six interconvertible pyridine compounds, among which pyridoxal 5'-phosphate (PLP) is a coenzyme for over 140 enzymes. PLP is also a very reactive aldehyde. The most well established mechanism for maintaining low levels of free PLP is its dephosphorylation by phosphatases. A human PLP-specific phosphatase has been identified and characterized. However, very little is known about the phosphatase in other living organisms. In this study, a cDNA clone of putative PLP phosphatase was identified from B...
January 10, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/28087330/molecular-characterization-and-functional-analysis-of-a-salmon-louse-lepeophtheirus-salmonis-kr%C3%A3-yer-1838-heme-peroxidase-with-a-potential-role-in-extracellular-matrixes
#5
Aina-Cathrine Øvergård, Christiane Eichner, Frank Nilsen, Sussie Dalvin
Heme peroxidases are the most abundant type of peroxidase catalyzing a H2O2-dependent oxidation of a wide variety of substrates. They are involved in numerous processes like the innate immune response, hormone and prostaglandin synthesis and crosslinking of proteins within extracellular matrixes (ECM) as well as molecules within the cuticle and chorion of arthropods and nematodes. In the present study, a Lepeophtheirus salmonis heme peroxidase (LsHPX) 1 was characterized. Amino acids in the active site of heme peroxidases were conserved, and the predicted protein sequence showed the highest similarity to genes annotated as chorion peroxidases and genes suggested to be involved in cuticle hardening or adhesion...
January 10, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28081188/effect-of-varroa-destructor-wounding-and-varroa-homogenate-on-gene-expression-in-brood-and-adult-honey-bees
#6
Gun Koleoglu, Paul H Goodwin, Mariana Reyes-Quintana, Mollah Md Hamiduzzaman, Ernesto Guzman-Novoa
Honey bee (Apis mellifera) gene expression related to immunity for hymenoptaecin (AmHym) and defensin-1 (AmDef-1), longevity for vitellogenin (AmVit2) and stem cell proliferation for poly U binding factor 68 kDa (AmPuf68) was compared following Varroa destructor parasitism, buffer injection and injection of V. destructor compounds in its homogenate. In adults, V. destructor parasitism decreased expression of all four genes, while buffer injection decreased expression of AmHym, AmPuf68 and AmVit2, and homogenate injection decreased expression of AmPuf68 and AmVit2 but increased expression of AmDef-1 relative to their respective controls...
2017: PloS One
https://www.readbyqxmd.com/read/28079921/four-cases-of-exogenous-acral-pigmentation-related-to-a-darkeling-beetle-coleoptera-tenebrionidae-blaps
#7
S Mokni, L Boussofara, W Saidi, A Aounallah, C Belajouza, N Ghariani, R Nouira, M Denguezli
Beetle (coleoptera) is the largest insect order colonizing all continents 1-2. Most of the beetles synthesize hemolymph containing several chemicals used as signals or defensive secretions against predators 2. Coleoptera body fluids can accidentally come into contact with humans' skin and induce dermatitis. Skin contact with the beetles commonly causes blistering skin eruption 3. This article is protected by copyright. All rights reserved.
January 12, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28062097/vicissitudes-of-oxidative-stress-biomarkers-in-the-estuarine-crab-scylla-serrata-with-reference-to-dry-and-wet-weather-conditions-in-ennore-estuary-tamil-nadu-india
#8
M G Ragunathan
The primary objective of this study was to understand the impact of monsoon and summer seasons on the Polychlorinated Biphenyls (PCB's) and petroleum hydrocarbon compounds (PHC's) load in Ennore estuary and how the physiological response of estuarine Scylla serrata inhabiting in this estuary changed with reference to antioxidant defense. Seasonal levels of PCB's and PHC's were assessed in the water along with their bioaccumulation in gills, hemolymph, hepatopancreas and ovary of S. serrata. Concentration of PCB's and PHC's in water and their bioaccumulation was found to be higher in summer season when compared to monsoon season...
January 3, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28049427/identification-of-candidate-infection-genes-from-the-model-entomopathogenic-nematode-heterorhabditis-bacteriophora
#9
Jonathan Vadnal, Ramesh Ratnappan, Melissa Keaney, Eric Kenney, Ioannis Eleftherianos, Damien O'Halloran, John M Hawdon
BACKGROUND: Despite important progress in the field of innate immunity, our understanding of host immune responses to parasitic nematode infections lags behind that of responses to microbes. A limiting factor has been the obligate requirement for a vertebrate host which has hindered investigation of the parasitic nematode infective process. The nematode parasite Heterorhabditis bacteriophora offers great potential as a model to genetically dissect the process of infection. With its mutualistic Photorhabdus luminescens bacteria, H...
January 3, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28046005/field-usable-lateral-flow-immunoassay-for-the-rapid-detection-of-white-spot-syndrome-virus-wssv
#10
Prabir Kumar Kulabhusan, Jyutika M Rajwade, Vimal Sugumar, Gani Taju, A S Sahul Hameed, Kishore M Paknikar
BACKGROUND: White spot disease (WSD), a major threat to sustainable aquaculture worldwide, is caused by White spot syndrome virus (WSSV). The diagnosis of WSD relies heavily on molecular detection of the virus by one-step PCR. These procedures are neither field-usable nor rapid enough considering the speed at which the virus spreads. Thus, development of a rapid, reliable and field-usable diagnostic method for the detection of WSSV infection is imperative to prevent huge economic losses...
2017: PloS One
https://www.readbyqxmd.com/read/28028168/acute-exposure-to-worst-case-concentrations-of-amitraz-does-not-affect-honey-bee-learning-short-term-memory-or-hemolymph-octopamine-levels
#11
Rachel R Rix, G Christopher Cutler
Amitraz, an acaricide used to treat Varroa destructor Anderson & Trueman, is one of the most commonly detected pesticides in honey bee (Apis mellifera L.) hives. Acaricides sometimes negatively impact honey bee cognition, but potential effects of amitraz on honey bee learning have been rarely studied. We topically exposed foragers to 95th percentile field-relevant levels of amitraz and, 24 h later, tested the ability of bees to associate a sucrose reward with a conditioned odor (learning response) using the proboscis extension response (PER)...
December 27, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28027605/species-specificity-of-aldehyde-and-fatty-acid-profiles-of-four-family-group-representatives-within-the-insect-infraorder-pentatomomorpha-hemiptera-heteroptera
#12
Aleš Tomčala, Anna Jirošová, Petr Žáček, Markéta Kaušková, Oldřich Hovorka, Bohumír Koutek
Reactive α,β-unsaturated aldehydes, including 4-oxo-2-alkenals, are known to be present in volatile secretions of numerous heteropteran insect species. Because the aldehydes are likely to originate from metabolism of fatty acids, the present study aimed to examine and compare the aldehyde and fatty acid profiles of four model heteropteran species. The model species consisted of adult family group representatives within the infraorder Pentatomomorpha (Hemiptera: Heteroptera): seed bug (Lygaeus equestris [Lygaeoidea]), dock leaf bug (Coreus marginatus [Coreoidea]), red firebug (Pyrrhocoris apterus [Pyrrhocoroidea]), and European stink bug (Graphosoma lineatum [Pentatomoidea])...
December 27, 2016: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28018164/an-insulin-like-growth-factor-in-rhodnius-prolixus-is-involved-in-post-feeding-nutrient-balance-and-growth
#13
Marina S Defferrari, Ian Orchard, Angela B Lange
Growth of organisms is modulated by the availability of nutrients and energy, and is mostly regulated by insulin-like growth factors (IGFs) through the insulin signaling system. In insects, IGFs produced by the fat body induce cell division during the molt cycle, regulate adult body size, and have metabolic effects. Here, we describe an IGF from the hematophagous hemipteran Rhodnius prolixus and show its activity in regulating growth and metabolism in the post-feeding period during the fifth, and last, nymphal instar...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28011823/predator-stress-induced-immunosuppression-trade-off-immune-redistribution-or-immune-reconfiguration
#14
Shelley A Adamo, Russell H Easy, Ilya Kovalko, Jenna MacDonald, Ashleigh McKeen, Taylor Swanburg, Kurtis F Turnbull, Catherine Reeve
Although predator exposure increases the risk of wound infections, it typically induces immunosuppression. A number of non-mutually exclusive hypotheses have been put forward to explain this immunosuppression, including: trade-offs between the immune system and other systems required for anti-predator behaviour, redistribution of immune resources towards mechanisms needed to defend against wound infections, and reconfiguration of the immune system to optimize defense under the physiological state of fight-or-flight readiness...
December 23, 2016: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28002470/sepsis-and-hemocyte-loss-in-honey-bees-apis-mellifera-infected-with-serratia-marcescens-strain-sicaria
#15
Nancy L Burritt, Nicole J Foss, Eric C Neeno-Eckwall, James O Church, Anna M Hilger, Jacob A Hildebrand, David M Warshauer, Nicole T Perna, James B Burritt
Global loss of honey bee colonies is threatening the human food supply. Diverse pathogens reduce honey bee hardiness needed to sustain colonies, especially in winter. We isolated a free-living Gram negative bacillus from hemolymph of worker honey bees (Apis mellifera) found separated from winter clusters. In some hives, greater than 90% of the dying bees detached from the winter cluster were found to contain this bacterium in their hemolymph. Throughout the year, the same organism was rarely found in bees engaged in normal hive activities, but was detected in about half of Varroa destructor mites obtained from colonies that housed the septic bees...
2016: PloS One
https://www.readbyqxmd.com/read/27997568/longipin-an-amyloid-antimicrobial-peptide-from-the-harvestman-acutisoma-longipes-arachnida-opiliones-with-preferential-affinity-for-anionic-vesicles
#16
Raphael Santa Rosa Sayegh, Isabel de Fátima Correia Batista, Robson Lopes de Melo, Karin A Riske, Sirlei Daffre, Guillermo Montich, Pedro Ismael da Silva Junior
In contrast to vertebrate immune systems, invertebrates lack an adaptive response and rely solely on innate immunity in which antimicrobial peptides (AMPs) play an essential role. Most of them are membrane active molecules that are typically unstructured in solution and adopt secondary/tertiary structures upon binding to phospholipid bilayers. This work presents the first characterization of a constitutive AMP from the hemolymph of an Opiliones order animal: the harvestman Acutisoma longipes. This peptide was named longipin...
2016: PloS One
https://www.readbyqxmd.com/read/27993620/characterization-of-putative-virulence-factors-of-serratia-marcescens-strain-sen-for-pathogenesis-in-spodoptera-litura
#17
Chetana Aggarwal, Sangeeta Paul, Vishwas Tripathi, Bishwajeet Paul, Md Aslam Khan
Two Serratia marcescens strains, SEN and ICC-4, isolated from diseased insect cadavers were observed to differ considerably in their virulence towards Spodoptera litura. The present study was aimed to characterize the possible virulence factors present in the virulent Serratia marcescens strain SEN. Both the S. marcescens strains were evaluated for the presence of various lytic enzymes such as chitinase, lipase, protease and phospholipase. The virulent S. marcescens strain SEN was observed to possess considerably higher activity of chitinase and protease enzymes; activity of phospholipase enzyme was also higher...
December 18, 2016: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/27990558/comparative-proteomic-analysis-of-hemolymph-from-uninfected-and-candidatus-liberibacter-asiaticus-infected-diaphorina-citri
#18
T A Gill, C Chu, K S Pelz-Stelinski
Hemolymph was characterized from Diaphorina citri adults infected with the phytopathogen, Candidatus Liberibacter asiaticus (CLas), and compared with that from uninfected psyllids. This study identified 5531 and 3220 peptides within infected and uninfected hemolymph using nano-LC-MS/MS. A reduced number of proteins were detected for D. citri and all known endosymbionts within infected hemolymph as compared to uninfected hemolymph. A large number of immune defense proteins were absent from D. citri hemolymph; however, a single recognition protein (PGRP), two serine protease inhibitors, three prophenoloxidase (proPO) enzymes, and a single serine protease in an uninfected D...
December 19, 2016: Amino Acids
https://www.readbyqxmd.com/read/27989866/localization-and-expression-of-molt-inhibiting-hormone-and-nitric-oxide-synthase-in-the-central-nervous-system-of-the-green-shore-crab-carcinus-maenas-and-the-blackback-land-crab-gecarcinus-lateralis
#19
Natalie L Pitts, Donald L Mykles
In decapod crustaceans, molting is controlled by the pulsatile release of molt-inhibiting hormone (MIH) from neurosecretory cells in the X-organ/sinus gland (XO/SG) complex in the eyestalk ganglia (ESG). A drop in MIH release triggers molting by activating the molting gland or Y-organ (YO). Post-transcriptional mechanisms ultimately control MIH levels in the hemolymph. Neurotransmitter-mediated electrical activity controls Ca(2+)-dependent vesicular release of MIH from the SG axon terminals, which may be modulated by nitric oxide (NO)...
October 27, 2016: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/27989837/prophenoloxidase-activation-and-antimicrobial-peptide-expression-induced-by-the-recombinant-microbe-binding-protein-of-manduca-sexta
#20
Yang Wang, Haobo Jiang
Manduca sexta microbe binding protein (MBP) is a member of the β-1,3-glucanase-related protein superfamily that includes Gram-negative bacteria-binding proteins (GNBPs), β-1,3-glucan recognition proteins (βGRPs), and β-1,3-glucanases. Our previous and current studies showed that the purified MBP from baculovirus-infected insect cells had stimulated prophenoloxidase (proPO) activation in the hemolymph of naïve and immune challenged larvae and that supplementation of the exogenous MBP and peptidoglycans (PGs) had caused synergistic increases in PO activity...
October 28, 2016: Insect Biochemistry and Molecular Biology
keyword
keyword
73133
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"