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Hepatopancreas (0):
Recent article
Hepatopancreas
Journal of Proteomics (73)12 2010
Abstract
Proteome maps of hepatopancreas (midgut gland) and ovarian tissues of the crustacean, Cancer pagurus (Decapoda; edible crab) have been produced by 2D-PAGE and identification of proteins, following trypsin proteolysis, by electrospray MS/MS and database searching. Owing to the lack of...
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PMID: 20656081
PDF is available here.
PDF is available here.
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Abstract
We documented effects in adult lobsters at the metabolic and gene expression levels. In this study we have documented morphologic corollaries to our prior observations. We examined the light and electron microscopic changes in the hepatopancreas of adult lobsters following in vivo acute exposure to...
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PMID: 20825991
PDF is available here.
PDF is available here.
Abstract
The enzymes Acetylcholinesterase (AchE) and Lactatedehydrogenase (LDH) are used as biological markers in the present study. Enzymes are highly sensitive and used to evaluate the biological effects of organophosphate pesticide chlorpyrifos in freshwater mussel Lamellidens marginalis. The test organis...
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PMID: 21186713
PDF is available here.
PDF is available here.
Journal of Parasitology (96)3 2010
Abstract
Knowledge of population dynamics of parasites in freshwater snails from South America is scarce. The objective of the present study was to describe the infection dynamics of larval digeneans in the planorbid snail, Biomphalaria peregrina , during 2 sampling periods in a Patagonian temporary pond. In...
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PMID: 20557212
PDF is available here.
PDF is available here.
Protoplasma (241)1-4 2010
Abstract
We investigated the shape of cells, extrusion of lipid droplets, shape and distribution of microvilli, and the presence of bacteria on the cell surface. A total of 22 animals were investigated and we found some variability in the appearance of the gland epithelial surface. Seventeen of the animals h...
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PMID: 20155290
PDF is available here.
PDF is available here.
Abstract
Complementary DNA (cDNA) and genomic DNA, including flanking regions of the chitinase gene (Fcchi-3) of Fenneropenaeus chinensis, were cloned and sequenced. Fcchi-3 was found to have 92.0 and 91.4% identity at the cDNA level to that of Litopenaeus vannamei and Marsupenaeus japonicus, respectively. T...
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PMID: 19642017
PDF is available here.
PDF is available here.
Abstract
We used a combination of linear and artificial neural network (ANN) modelling to detect and explore interactions among low-dose mixtures of these heavy metals and their impacts on fundamental physiological processes in tissues of the Eastern oyster, Crassostrea virginica. Animals were exposed to Cd...
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PMID: 19958840
PDF is available here.
PDF is available here.
Parazitologiya (44)4 2010
Abstract
We investigated the expression of genes encoding defense factors in gastropods by the example of the snail Planorbarius corneus from water bodies of the Leningrad Oblast under infestation with trematods. The snails naturally infested with the parthenites of trematode species belonging to the familie...
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PMID: 21061590
PDF is available here.
PDF is available here.
Abstract
Oysters are an ecologically important group of filter-feeders, and a valuable toxicology model for characterizing the potential impacts of nanoparticles to marine organisms. Fullerene (C60) exposure studies with oysters, Crassostrea virginica, were conducted with a variety of biological levels, e.g....
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PMID: 19806754
PDF is available here.
PDF is available here.
Abstract
The juveniles of M. malcolmsonii were exposed to 24.1 microg l(-1) of Hg fora period of 21 days. The gills and hepatopancreas of test prawns were sampled and processed for electron microscopic observations. Mitochondria are the organelle most affected in the gills of test prawns. The number of mitoc...
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PMID: 20136050
PDF is available here.
PDF is available here.
Abstract
I specific for double- and single-stranded DNA and also lost or reduced by treatment with mungbean nuclease specific for single-stranded nucleic acids. Transmission electron microscopy (TEM) revealed that the inclusions contained tightly packed, unenveloped, viral-like particles of approximately 25...
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PMID: 19750803
PDF is available here.
PDF is available here.
Abstract
We sampled the commercial fish Phycis blennoides and Micromesistius poutassou and the crustacean Aristeus antennatus. Specimens were sampled inside and outside (in the open continental slope) the submarine canyon; both are regarded as potentially affected by exposure to different anthropogenic chemi...
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PMID: 18941829
PDF is available here.
PDF is available here.
Abstract
The present study examined alterations in the protein pattern and histopathology of the hepatopancreas and gills of Macrobrachium malcolmsonii following exposure to Sevin, the commercial grade of carbaryl (1-Naphthylmethyl carbamate) pesticide. Juvenile prawns were exposed to sub-lethal concentratio...
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PMID: 20120492
PDF is available here.
PDF is available here.
Abstract
Abstract
The macrophage migration inhibitory factor (mif) cDNA and its genome were cloned from small abalone Haliotis diversicolor supertexta. Small abalone mif (samif) was originally identified from an expressed sequence tag (EST) fragment from a normalized cDNA library. It's 5' untranslated...
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PMID: 19426810
PDF is available here.
PDF is available here.
Abstract
The clawed lobsters Homarus gammarus and Homarus americanus are high-priced and appreciated food items in southern Europe. From a nutritional point of view there is still limited information on the chemical composition of edible tissues (muscle, hepatopancreas, and gonads) of both species. Therefore...
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PMID: 19334784
PDF is available here.
PDF is available here.
Abstract
The prophenoloxidase(ProPO) gene was cloned from haemocytes of Chinese shrimp Fenneropenaeus chinensis by Rapid Amplification Complementary DNA Ends (RACE) method. The full-length cDNA of prophenoloxidase gene consists of 3040 bp with a 2061 bp Open Reading Frame (ORF), encoding 686 amino acids. Phy...
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PMID: 18595005
PDF is available here.
PDF is available here.
Abstract
In this paper, spatial and temporal variations of three common microcystins (MC-RR, MC-YR, and MC-LR) in the hepatopancreas of a freshwater snail (Bellamya aeruginosa) were studied monthly in two bays of Lake Taihu. Microcystins (MCs) concentration in hepatopancreas was quantified by liquid chromato...
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PMID: 18635263
PDF is available here.
PDF is available here.
Biological Research (42)4 2009
Abstract
This study evaluates the bioactivity of the crude ethanol extract and ethyl acetate, hexane and chloroform fractions obtained from Eugenia uniflora leaves using the hepatopancreas of Oreochromis niloticus L. as an experimental model. The ethanol extract and fractions were administered to the fish or...
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PMID: 20140296
PDF is available here.
PDF is available here.
Biological Research (42)2 2009
Abstract
Hyptidendron canum (Pohl ex Benth.) Harley is a native tree of the Brazilian Savannah. The fish Oreochromis niloticus L. was used as an experimental model to determine the bioactivity of the crude ethanol extract as well as ethyl acetate, hexanic and chloroform fractions obtained from its leaves. Th...
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PMID: 19746260
PDF is available here.
PDF is available here.
Journal of Virology (83)1 2009
Abstract
We report a new C-type lectin (C-type lectin 1) from the shrimp Litopenaeus vannamei (LvCTL1), which has activity against the white spot syndrome virus (WSSV). LvCTL1 is a 156-residue polypeptide containing a C-type carbohydrate recognition domain with an EPN (Glu(99)-Pro(100)-Asn(101)) motif that h...
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PMID: 18945787
PDF is available here.
PDF is available here.
Chemosphere (74)1 2008
Abstract
These results suggested that GSH synthesis could be activated against reactive oxygen species induced by lower Cd exposure; under the higher Cd exposure conditions, an inhibition of NADPH-dependant redox cycling and de novo GSH synthesis led to significant decrease in GSH content....
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PMID: 18952253
PDF is available here.
PDF is available here.
Abstract
Laser-assisted microdissection (LMD) has been developed to isolate distinct cell populations from heterogeneous tissue sections, cytological preparations, or live cell samples. Downstream applications typically include gene expression studies using real-time PCR and array platforms, diagnostic PCR,...
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PMID: 19149378
PDF is available here.
PDF is available here.
Abstract
Dinoflagellates in the genus Hematodinium are important parasites of wild marine crustaceans, but are rarely reported in waters with salinities < 11 or from cultured crustaceans. Since 2005, the mud crab Scylla serrata, which is cultured along the coast of southeastern China, has suffered from an ac...
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PMID: 19149377
PDF is available here.
PDF is available here.
Abstract
The aim of the study was to evaluate subchronic toxic effects of the preparation LASSO MTX (alachlor 42% W/V) on hematological indices and histology of the common carp (Cyprinus carpio L.). In carp exposed for 28 days to LASSO MTX in the concentration of 2,400 microg L(-1), significant differences (...
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PMID: 18654729
PDF is available here.
PDF is available here.
Abstract
The extensive use of pesticides to control agricultural pests poses a serious threat to many non-target organisms of the aquatic environment such as the freshwater crab, B. guerini. The deleterious influence of the pesticide causes physiological, biochemical, histological and such other disorders in...
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PMID: 19297986
PDF is available here.
PDF is available here.
Abstract
A diverse class of proteins called lectins plays a major role in shrimp innate immunity. In this study, the cDNA encoding a C-type lectin of Penaeus monodon (PmLT) was cloned, and its potential role examined. Despite the low overall amino acid sequence identity with other animal lectins, PmLT includ...
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PMID: 18793643
PDF is available here.
PDF is available here.
Abstract
A histological study of the hepatopancreas of the blue crab Callinectes sapidus parasitized by the rhizocephalan barnacle Loxothylacus texanus was conducted to explore if the degree of development of the parasite's rootlet system was correlated to its maturation process as seen by external character...
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PMID: 18805422
PDF is available here.
PDF is available here.
Aquatic Toxicology (89)3 2008
Abstract
Exposure to different levels of a mixture in equitoxic concentrations of Cd, Cu, Fe, Hg, Mn, Pb and Zn, equivalent to between 5 and 0.5% the individual respective 96-h median lethal concentrations (0.05-0.005AF: application factors) caused dose- and time-dependent damages to the hepatopancreas, gill...
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PMID: 18667246
PDF is available here.
PDF is available here.
Abstract
Glutathione S-transferase (GST) in the hepatopancreas of crustaceans has been suggested as a biomarker for organic pollution. However, much of crustacean physiology is known to exhibit a cyclic characteristic because of the periodic shedding of the confining exoskeleton. The goal of this study was t...
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PMID: 18587514
PDF is available here.
PDF is available here.
Environmental Toxicology (23)4 2008
Abstract
We exposed adult U. pugnax to salt marsh sediment spiked with different 60% trans/40% cis permethrin concentrations for 96 h, and evaluated changes in oxygen consumption rate, hemolymph osmolarity, and glutathione S-transferase activity (GST) following exposure. Marsh sediment was not lethal to U. p...
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PMID: 18214939
PDF is available here.
PDF is available here.
Biochemistry (New York) (73)8 2008
Abstract
Deoxyribonucleases (DNases) differing in the subcellular localization and specificity towards native and denatured substrates and in products of cleavage of endogenous DNA were isolated for the first time from the hepatopancreas of freshwater snail by differential sedimentation and preparative isoel...
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PMID: 18774941
PDF is available here.
PDF is available here.
Abstract
Three species of phylogenetically related semi-terrestrial crabs (Superfamily Grapsoidea--Sesarma rectum, Goniopsis cruentata and Neohelice granulata (formerly: Chasmagnathus granulatus) with different degrees of terrestriality were studied to quantify the accumulation of copper (Cu) in hemolymph, g...
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PMID: 18501679
PDF is available here.
PDF is available here.
Parasitology (135)8 2008
Abstract
The presence of antigenic carbohydrate epitopes shared by Biomphalaria glabrata as well as by the sporocysts and miracidia representing snail-pathogenic larval stages of Schistosoma mansoni was assayed by immunohistochemical staining of paraformaldehyde-fixed tissues. To this end, both polyclonal ra...
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PMID: 18507884
PDF is available here.
PDF is available here.
Biology of Reproduction (79)1 2008
Abstract
We report the first cloning and characterization of cDNA encoding a putative vitellogenin (Vg) receptor (VgR) from the shrimp, Penaeus monodon. The shrimp VgR cDNA is 6.8 kb; the deduced protein has 1943 amino acids with a molecular weight of 211 kDa. VgR is ovary specific and consists of conserved...
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PMID: 18218613
PDF is available here.
PDF is available here.
Abstract
We used the filter feeding blue mussel as a model to analyse uptake and effects of nanoparticles from glass wool, a new absorbent material suggested for use in floating oil spill barriers. In both, gills and hepatopancreas we analysed uptake of nanomaterials by transmission electronmicroscopy (TEM)...
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PMID: 18397804
PDF is available here.
PDF is available here.
Abstract
These results indicated that PmcathepsinC was a constitutive and inducible acute-phase protein that perhaps involved in the immune defense of P. monodon....
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PMID: 18468929
PDF is available here.
PDF is available here.
Abstract
We found that shrimp LvTRX is mainly expressed in gills and pleopods; the variation of LvTRX mRNA upon hypoxia and re-oxygenation is not statistically significant. LvTRX stands as an important antioxidant that must be considered in future physiological and immune challenges studies....
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PMID: 18479973
PDF is available here.
PDF is available here.
Abstract
The occurrence of azaspiracid (AZA) toxins in contaminated shellfish has been the focus of much research. The present study investigated the binding properties of these toxins in mussels of the species Mytilus edulis. The work involved extraction of proteins and AZAs from contaminated mussel hepatop...
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PMID: 18417183
PDF is available here.
PDF is available here.
Ultramicroscopy (108)7 2008
Abstract
We report the use of a focused ion beam/scanning electron microscope (FIB/SEM) for simultaneous investigation of digestive gland epithelium gross morphology and ultrastructure of multilamellar intracellular structures. Digestive glands of a terrestrial isopod (Porcellio scaber, Isopoda, Crustacea) w...
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PMID: 18068303
PDF is available here.
PDF is available here.
Journal of Parasitology (94)3 2008
Abstract
Biomphalaria glabrata snails are known to display a wide range of susceptibility phenotypes to Schistosoma mansoni infection depending on the genetics of both the snail and the invading parasite. Evidence exists for a role of hydrolytic enzymes in the defense of molluscs against invading parasites....
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PMID: 18605796
PDF is available here.
PDF is available here.
Abstract
Carcinus maenas is an important and exploited natural resource in temperate estuaries, being consumed by local populations and also used as fish bait. Through bioaccumulation and bioamplification processes occurring in polluted estuarine ecosystems, this species may directly or indirectly represent...
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PMID: 18455199
PDF is available here.
PDF is available here.
Abstract
Chemical ultraviolet (UV) filters are used in various products and could be released into the environment, for example, via sunscreens used at swimming lakes. UV filters have been found in surface waters in the past but only a few investigations have concentrated on the effects of these substances i...
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PMID: 17985174
PDF is available here.
PDF is available here.
Chemosphere (71)10 2008
Abstract
The degree of contamination and toxicity in sediment from four Spanish ports (Cádiz, Huelva, Pasajes and Bilbao) was assessed in the present study. Two marine invertebrate species, the shore crab Carcinus maenas and the clam Ruditapes philippinarum, were exposed to the different sediments under lab...
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PMID: 18313100
PDF is available here.
PDF is available here.
Abstract
The osmoregulatory and respiratory responses of male and female Smeringurus mesaensis (Vaejovidae) to prolonged desiccation were measured. No significant effect of sex on mass-loss rates (MLRs) was found. Still, females maintained their haemolymph osmolality when desiccated to 10% mass loss, whereas...
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PMID: 18374353
PDF is available here.
PDF is available here.
Abstract
Due to its status of threatened species and being heavily contaminated by metals, the European eel (Anguilla anguilla) was selected to investigate cadmium contamination levels of fish settled along a historically cadmium-contaminated hydrosystem, the Garonne-Gironde continuum (France), according to...
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PMID: 18207239
PDF is available here.
PDF is available here.
Abstract
Catalase is an important antioxidant protein that protects organisms against various oxidative stresses by eliminating hydrogen peroxide. The full-length catalase cDNA of Chinese shrimp Fenneropenaeus chinensis was cloned from the hepatopancreas using degenerate primers by the method of 3' and 5' ra...
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PMID: 18353680
PDF is available here.
PDF is available here.
Chemosphere (71)7 2008
Abstract
We therefore assessed the effects of imidacloprid on survival, weight gain, feeding rate, total protein content, glutathione S-transferase activity (GST), and digestive gland epithelial thickness in juveniles and adults of the terrestrial isopod Porcellio scaber. After two weeks of feeding on imidac...
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PMID: 18190949
PDF is available here.
PDF is available here.
Abstract
The mud shrimp, Upogebia major is a gonochoristic species with distinct sexual dimorphism; however, the male has the "ovarian part of testis" in the gonad and mature-looking eggs appear in a similar reproductive cycle to the female. Vitellogenesis of U. major was investigated focusing on the charact...
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PMID: 18221905
PDF is available here.
PDF is available here.
Abstract
Macroscopic evidence, histological sections, transmission electron microscopy (TEM) evaluation, and PCR analyses of 25 apparently diseased juvenile spiny lobsters Panulirus argus from the reef lagoon of Puerto Morelos, Mexico, showed the presence of Panulirus argus Virus 1 (PaV1). Cowdry Type A intr...
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PMID: 18500032
PDF is available here.
PDF is available here.
Abstract
We have named the virus Cancer pagurus bacilliform virus (CpBV). The morphology and size of the nucleocapsid and the complete virion align the virus most closely with intranuclear bacilliform viruses reported from other decapod species. The virus was only observed in juvenile C. pagurus with carapac...
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PMID: 18500031
PDF is available here.
PDF is available here.
Science of the Total Environment (392)2-3 2008
Abstract
We conducted a comparative study of the distribution patterns of these elements in a squid, Todarodes pacificus. Elemental concentrations of the four chalcogens were determined in (mantle) muscle, gill, stomach, and hepatopancreas tissues. No relationship between chalcogen concentrations and morphol...
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PMID: 18191182
PDF is available here.
PDF is available here.
Virus Research (132)1-2 2008
Abstract
We examined the histopathological and hematological response of the Caribbean spiny lobster to experimentally induced infections with Panulirus argus Virus 1 (PaV1). The fixed phagocytes in the hepatopancreas were the primary sites of PaV1 infection in spiny lobsters. Fixed phagocytes were activated...
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PMID: 18177971
PDF is available here.
PDF is available here.
Journal of Parasitology (94)1 2008
Abstract
We investigated changes in the carbon and nitrogen isotope ratios of the freshwater snail Lymnaea stagnalis infected by trematode larvae. We measured carbon and nitrogen stable isotopes within the foot, gonad, and hepatopancreas of both infected and uninfected snails. There was no significant differ...
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PMID: 18372654
PDF is available here.
PDF is available here.
Abstract
The sublethal effect of naphthalene (2.5, 5, and 10 mg L(-1)) was studied in an estuarine crab Scylla serrata with reference to macromolecular changes. Biotransformation enzymes such as cytochrome P450, cytochrome b(5), NADPH cytochrome P450 reductase, aryl hydrocarbon hydroxylase, glutathione-S-tra...
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PMID: 18273912
PDF is available here.
PDF is available here.
Abstract
We apply these techniques for simulating the historical fate of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in the Grenland fjords, Norway, and for predicting the effects of different contaminated sediment remediation (capping) scenarios on the future levels of PCDD/Fs in cod and c...
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PMID: 18350897
PDF is available here.
PDF is available here.
Abstract
We evaluated the impact of this new potent insecticide (halofenozide) on growth and metric indexes in the larvivorous fish G. affinis under laboratory conditions. In addition, the effects were evaluated on the enzymatic activities of acetyl cholinesterase (AChE) and glutathione S-transferase (GST)....
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PMID: 19226809
PDF is available here.
PDF is available here.
BMC Biochemistry (9)1 2008
Abstract
Using degenerative primers and the rapid amplification of cDNA ends (RACE) procedure, we cloned the Duplex-Specific Nuclease (DSN) gene from the hepatopancreas of the Kamchatka crab and determined its full primary structure. We also developed an effective method for purifying functional DSN from the...
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PMID: 18495036
PDF is available here.
PDF is available here.
Marine Biotechnology (10)1 2008
Abstract
To clarify the natural diet of phyllosoma larvae of the Japanese spiny lobster Panulirus japonicus, the sources of 18S rDNA clones obtained from the hepatopancreas were investigated. Of a total of 1537 clones examined, 160 had different restriction profiles from the host larvae, in which 21 restrict...
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PMID: 17955292
PDF is available here.
PDF is available here.
Marine Biotechnology (10)1 2008
Abstract
Differentially expressed genes were identified in the hepatopancreas of Metapenaeus ensis during ovarian maturation via differential display reverse transcription-polymerase chain reaction (DDRT-PCR). They are G-protein signaling modulator 2 (GPSM2), glutamate carboxypeptide II (GCPII), ligatin, C-t...
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PMID: 17975702
PDF is available here.
PDF is available here.