Abstract：
:We have shown previously that exposure of Atlantic croaker to a PCB mixture (Aroclor 1254) results in impaired reproductive neuroendocrine function. In addition, we have identified hypothalamic tryptophan hydroxylase (TPH), the rate-limiting enzyme in serotonin (5-hydroxytryptamine) synthesis, as a target of PCB neuroendocrine toxicity. In order to further elucidate the mechanisms of PCB neurotoxicity, the present study investigated whether PCB-induced decrease in hypothalamic TPH activity resulted from degradation of the enzyme protein. Fish were exposed to Aroclor 1254 in the diet (0.1 mg/100 g body weight (BW)/day) for 30 days. The PCB exposure elicited a significant decrease in hypothalamic TPH protein content, which could be at least partially responsible for the reduced TPH activity. To test whether a similar PCB exposure could cause oxidative damage in croaker hypothalamic tissues, we examined the formation of malondialdehyde (MDA) protein adducts as a marker of lipid peroxidation (LPO). The same dose of PCB increased the MDA-protein adduct formation in the hypothalamus. In a separate experiment, the role of vitamin E, an antioxidant, to prevent or decrease the effect of PCB on hypothalamic TPH activity and gonadal growth was examined. The vitamin E co-treatments (1 and 10 mg/100 g BW/day) with PCB significantly reduced the effects of PCB on TPH activity and gonadal growth. These results suggest possible involvement of oxidative processes in PCB neurotoxicity.
journal_name
Mar Environ Resjournal_title
Marine environmental researchauthors
Khan IA,Thomas Pdoi
10.1016/j.marenvres.2004.03.077keywords:
subject
Has Abstractpub_date
2004-08-01 00:00:00pages
333-6issue
2-5eissn
0141-1136issn
1879-0291pii
S0141-1136(04)00064-9journal_volume
58pub_type
杂志文章abstract：:In many aquatic organisms including Mytilus edulis, the role of temperature on bioaccumulation of metals is still not clearly understood. In this study, uptake and accumulation of Cu, Co, Cd and Pb in mussels were investigated at different temperatures (6-26 degrees C). Results from exposure of isolated gills showed a...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2006.08.005
更新日期：2007-04-01 00:00:00
abstract：:Endocrine Disrupting Chemicals (EDCs) have the potential to alter hormone pathways that regulate reproductive processes in wildlife and fishes. In this research the hypothesis that Mediterranean top predator species (such as large pelagic fish) are potentially at risk due to EDCs is investigated. These marine organism...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(01)00107-6
更新日期：2001-12-01 00:00:00
abstract：:Intersexuality has been found in both males and females of the marine/estuarine amphipod, Echinogammarus marinus, at polluted and reference sites in East Scotland. Polluted sites had significantly more intersex specimens than reference sites, however the cause of intersexuality is unclear. Discriminant analysis of mor...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2004.03.013
更新日期：2004-08-01 00:00:00
abstract：:Extensive research has shown that the early life stages of marine organisms are sensitive to ocean acidification (OA). Less is known, however, on whether larval settlement and metamorphosis may be affected, or by which mechanisms. These are key processes in the life cycle of most marine benthic organisms, since they m...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.104977
更新日期：2020-07-01 00:00:00
abstract：:Seagrasses represent high primary productivity and provide important ecosystem services to the marine environment. Seagrass-associated microbial communities are playing essential ecological functional roles in biogeochemical cycles. However, little is known about the effect of seagrass vegetation on microbial communit...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.105174
更新日期：2020-12-01 00:00:00
abstract：:The mechanisms by which TBT produces modulations of the endocrine systems are not fully described. In this study, juvenile salmon were force-fed diet containing TBT (0: solvent control, 0.1, 1 and 10 mg/kg fish) for 72 h. Subsequently, fish exposed to solvent control and 10 mg/kg TBT were exposed to waterborne concent...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2010.01.005
更新日期：2010-01-01 00:00:00
abstract：:Carbonyl reductase (CBR) is an enzyme involved in protection from oxidative stress. In rainbow trout (Oncorhynchus mykiss), the hepatic mRNA abundance of the two isoforms (A and B) is increased after exposure to treated sewage effluents, as well as after exposure with β-naphthoflavone (β-NF) and the pro-oxidant paraqu...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2012.07.001
更新日期：2012-09-01 00:00:00
abstract：:The Mondego estuary (Portugal) went through different ecological scenarios over the last decades. An eutrophication process led to a decline in the ecosystem quality. The ensuing restoration plan resulted into a gradual ecological recovery, which was impaired by the occurrence of successive extreme climate events that...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2014.03.004
更新日期：2014-07-01 00:00:00
abstract：:The potential impact of drill cuttings on the two deep water calcareous red algae Mesophyllum engelhartii and Lithothamnion sp. from the Peregrino oil field was assessed. Dispersion modelling of drill cuttings was performed for a two year period using measured oceanographic and discharge data with 24 h resolution. The...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2015.09.008
更新日期：2015-12-01 00:00:00
abstract：:The fin whale (Balaenoptera physalus) is the most abundant and widespread mysticete species in the Mediterranean Sea, found mostly in deep, offshore waters of the western and central portion of the region. In the Mediterranean, this species is known to feed mainly on krill, in contrast to its Atlantic counterpart, whi...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2017.03.009
更新日期：2017-06-01 00:00:00
abstract：:Mercury (Hg) in Atlantic cod (Gadus morhua) is one of many parameters that are monitored through OSPAR's Joint Assessment and Monitoring Programme. Time series for cod in the Inner Oslofjord (Norway) go back to 1984. Until 2014, annual median Hg-concentrations in cod from the Inner Oslofjord showed both significant up...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2017.07.018
更新日期：2017-09-01 00:00:00
abstract：:We have previously shown that largemouth bass (Micropterus salmoides) has a remarkable ability to conjugate 4-hydroxy-2-nonenal (4HNE), a mutagenic and cytotoxic alpha,beta-unsaturated aldehyde produced during the peroxidation of lipids. In addition, we have isolated a glutathione S-transferase cDNA (bass GSTA) that e...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2004.03.033
更新日期：2004-08-01 00:00:00
abstract：:Mummichogs, Fundulus heteroclitus, an estuarine fish with a relatively small home range found along the eastern coast of the United States are well-suited to monitoring contaminant effects, including those of polycyclic aromatic hydrocarbons (PAHs). One of the common PAHs in estuaries is pyrene. We report here on effo...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2003.11.001
更新日期：2004-06-01 00:00:00
abstract：:Pelagic seabirds exhibit plasticity in foraging characteristics in relation to oceanographic conditions. This should be particularly relevant in tropical marine environments where food resources are naturally more unpredictable. We studied how inter-annual variations (2013-2018) in tropical oceanographic conditions (d...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.105165
更新日期：2020-12-01 00:00:00
abstract：:The present study analyses the composition, structure and trophic function of epibenthic assemblages in two artificial reefs (ARs) 16 years after deployment and in nearby natural reefs (NRs), aiming at providing insights on the complementarity between both habitats. Current findings suggest that after 16 years the ARs...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2013.09.013
更新日期：2013-12-01 00:00:00
abstract：:The sublethal effects of stormwater runoff from sections of a plum orchard treated with esfenvalerate or diazinon were evaluated in 7-day-old Sacramento splittail (Pogonichthys macrolepidotus) larvae. Fish were exposed to eight runoff samples using the USEPA standard static renewal method for 96 h acute toxicity testi...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2003.12.005
更新日期：2005-04-01 00:00:00
abstract：:The seas worldwide are threatened by a "new" source of pollution. Munitions dumped into the seas worldwide will corrode and start to leak. Their impacts on the environment and on human health are now more than ever subject of scientific research. Bivalves are a first choice bioindicator and their importance is demonst...
journal_title：Marine environmental research
pub_type： 杂志文章,评审
doi：10.1016/j.marenvres.2020.105006
更新日期：2020-06-01 00:00:00
abstract：:The new record of a shallow-water submarine hydrothermal field (<150 m w.d.) in the western Mediterranean Sea (Tyrrhenian Sea, Italy) allows us to study CO2 fluid impact on benthic foraminifers. Benthic foraminifers calcification process is sensitive to ocean acidification and to local chemical and physical parameters...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2018.02.015
更新日期：2018-05-01 00:00:00
abstract：:In this study, new DNA markers were explored for the flounder Platichthys flesus. cDNA and genomic sequences of the genes encoding the glyceraldehyde-3-phosphate-deshydrogenase (GAPDH), the cytosolic creatine kinase (CK), the prostaglandin D synthase (PGDS) and the betaine homocysteine methyltransferase (BHMT) were ch...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2010.05.002
更新日期：2010-08-01 00:00:00
abstract：:Economic development, coastal population growth, and expansion of tourism-related activities along coastlines have been the leading causes of marine debris pollution worldwide. While the problem of marine debris pollution has been increasingly recognized, there has been limited research on its socioeconomic drivers, p...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.105042
更新日期：2020-09-01 00:00:00
abstract：:This study compares the content of mercury in the muscles, liver, kidneys, gonads and gills of male and female individuals of sichel (Pelecus cultratus). Moreover, the trend of changes of mercury concentration before (March) and during (May) the spawning season was examined. Sichel brooders were caught in the Vistula ...
journal_title：Marine environmental research
pub_type： 杂志文章,评审
doi：10.1016/j.marenvres.2019.05.010
更新日期：2019-06-01 00:00:00
abstract：:In this study the clam, Tapes philippinarum, a filter-feeding bivalve living in soft bottoms, was used to investigate the water/sediment pollution in Venice Lagoon (Venice, Italy), a heavily urbanised and industrialised area. To this end, clams collected from indigenous populations in a clean farming area (Val Dogà) w...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(00)00037-4
更新日期：2000-07-01 00:00:00
abstract：:In future global change scenarios the surface ocean will experience continuous acidification and rising temperatures. While effects of both stressors on marine, benthic communities are fairly well studied, consequences of the interaction of both factors remain largely unknown. We performed a short-term microcosm exper...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2017.11.002
更新日期：2018-02-01 00:00:00
abstract：:Estuarine environmental assessment by sub-individual responses is important in order to understand contaminant effects and to find suitable estuarine biomonitor species. Our study aimed to analyze oxidative stress responses, including glutathione-S-transferase (GST) activity, total antioxidant capacity (ACAP) and lipi...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2012.10.012
更新日期：2013-02-01 00:00:00
abstract：:Organisms living in temperate and polar regions experience extensive seasonal changes in the physical and biotic environment, including temperature, insolation, and food availability, among other factors. Sessile intertidal organisms respond to such seasonal fluctuations largely through physiological and biochemical m...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.105088
更新日期：2020-10-01 00:00:00
abstract：:Ecdysone is a hormone known to play a pivotal role in crustaceans and insects. In order to evaluate the ecdysone activities in the environment and within the organism, we have developed a biomonitoring Daphnia strain by introducing a reporter gene. In this study, the ecdysone response element was inserted in the upstr...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2013.11.005
更新日期：2014-02-01 00:00:00
abstract：:Few in vivo studies have been conducted to assess how nanoparticle (NP) characteristics such as particle form and shape affect their toxicity and bioaccumulation. In the present study, the deposit feeder, Capitella teleta, was used to investigate the influence of copper form (CuO NPs, micron-sized CuO particles, and a...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2015.06.010
更新日期：2015-10-01 00:00:00
abstract：:This study aimed to add light-avoidance as a categorizing technique for the study of mesopelagic acoustic layers. Data recorded along the 20° W parallel from 20° N to Iceland showed three types of mesopelagic layers: the non-avoiding non-migrant deep scattering layer (NMDSL), which dropped its intensity toward the nor...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2019.104842
更新日期：2020-02-01 00:00:00
abstract：:Since May 29, 2006, a mud volcano in the Brantas Delta of the Sidoarjo district has emitted mud that has inundated nearby villages. Pollution in this area has been implicated in detrimental effects on fish health. In fishes, leukocyte and phagocytic cells play a vital role in body defenses. We report for the first tim...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2014.02.004
更新日期：2014-05-01 00:00:00
abstract：:Offshore oil and gas activities are required not to cause adverse environmental effects, and risk based management has been established to meet environmental standards. In some risk assessment schemes, Risk Indicators (RIs) are parameters to monitor the development of risk affecting factors. RIs have not yet been esta...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2016.12.004
更新日期：2017-06-01 00:00:00
