Results 91 to 100 of about 18,704 (168)

Toxicokinetics of Ag in the terrestrial isopod Porcellionides pruinosus exposed to Ag NPs and AgNO3 via soil and food [PDF]

open access: yes, 2015
Silver nanoparticles (Ag NPs) have been used in numerous consumer products and may enter the soil through the land application of biosolids. However, little is known about the relationship between Ag NP exposure and their bioavailability for soil ...
Jurkschat, Kerstin   +8 more
core   +1 more source

FIRST RESULTS ABOUT TOPOISOMERASE ACTIVITY IN ASTACUS ASTACUS AND AUSTROPOTAMOBIUS PALLIPES AS A BIOMARKER FOR CRAYFISH VIABILITY

open access: yesKnowledge and Management of Aquatic Ecosystems, 2004
A comparative study of topoisomerase activity in two European crayfish species Astacus astacus and Austropotamobius pallipes was carried out to determine the physiological basis of the difference in ecological fitness of these systematically related ...
PAOLUCCI M.   +3 more
doaj   +1 more source

Biochemical Changes during Gonadal Maturation Portunus pelagicus (Linnaeus, 1758) [PDF]

open access: yes, 2010
The changes in moisture, protein, lipid, carbohydrate and carotenoids in the ovary, hepatopancreas, muscle and haemolymph during the process of gonadal maturation of the crab PorhmllS pelagiclls (Linnaeus, 1758) were nvestigated.
Manisseri, Mary K, Ravi, Raghunath
core  

Pharmacokinetics and Withdrawal Times of Cefotaxime in White Leg Shrimp (Litopenaeus vannamei) after Oral Administration

open access: yesFishes
A high-performance liquid chromatography method coupled to tandem mass spectrometry was validated in order to study the pharmacokinetics of cefotaxime in shrimp hepatopancreases and plasma, as well as its withdrawal time related to a maximum residue ...
Thi Kim Duyen Huynh   +8 more
doaj   +1 more source

Xenobiotic induced functional alterations in Hepatopancreas of the Penaeid shrimp Metapenaeus dobsoni (Miers) [PDF]

open access: yes, 1999
Xenobiocic-induced imbalance between production and ulilisation of cylosolic lipid provides biochemical evidence of structural and functional alaerations in animal tissues . The present study investigates metal induced accumulalion of unsaturated neutral
Manisseri, Mary K, Menon, N R
core  

Dietary Bile Acid Influences the Physiological, Morphological, Lipid Metabolism-Related Responses, and Transcriptomic Profile of Hepatopancreas in High-Fat Diet-Fed Juvenile Gibel Carp (Carassius auratus gibelio)

open access: yesAnimals
To assess the influence of dietary bile acid (BA) on the phenotype associated with hepatic lipid metabolism and its regulation of lipid homeostasis in gibel carp (Carassius auratus gibelio) under high-fat diet (HFD) conditions, five HFDs were designed ...
Xiaoyang Huang   +11 more
doaj   +1 more source

An ultrastructural study of the Hepatopancreas of Indian white prawn Penaeus indicus H. Milne Edwards [PDF]

open access: yes, 1999
Electron microscopic studies of the hepatopancrcatic tubule revealed four distinct cell type . The Embryonic cells were undifferentiated with a large nucleus and cytoplasm surrounding it. Golgi complex and free ribosomes wcre abundant. Fibrillar (F-cells)
Hemambika, M, Paulraj, R
core  

Hepatopancreatic Vitellogenin Regulation in Marsupenaeus japonicus: Transcriptome Based on Endogenous Variation in Vitellogenin Expression Levels

open access: yesArthropoda
In penaeids, the major yolk protein precursor vitellogenin is synthesized in both the hepatopancreas and the ovary. While ovarian vitellogenin expression is clearly regulated by hormones from the X-organ/sinus gland in the eyestalk, regulation in the ...
Azreen Syazana Nazaruddin   +5 more
doaj   +1 more source

Effects of Dietary Cholesterol Levels on the Growth, Molt Performance, and Immunity of Juvenile Swimming Crab, Portunus trituberculatus [PDF]

open access: yes, 2015
The effects of dietary cholesterol levels on growth, molt performance, and immunity of juvenile swimming crab Portunus trituberculatus, were investigated at four cholesterol levels (0.2%-1.4%) of purified diets.
Han, Tao   +8 more
core  

Efectos de ecdisona y de la aclimatación a baja temperatura, sobre el crecimiento y la tasa metabólica de juveniles de la langosta de agua dulce Cherax quadricarinatus (Decapoda, Parastacidae) [PDF]

open access: yes, 2013
Growth, metabolic rate, and energy reserves of Cherax quadricarinatus (von Martens, 1868) juveniles were evaluated in crayfish acclimated for 16 weeks to either 25 ºC (temperature near optimum) or 20 ºC (marginal for the species).
Chaulet, Anouk   +2 more
core  

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