Polycyclic Aromatic Hydrocarbons in the South American Environment

Barra, Ricardo; Castillo, Caroline; Torres, João Paulo Machado

doi:10.1007/978-0-387-69163-3_1

Cited by 20 publications

(8 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The common mussel has been used world-wide as a sentinel of pollution, of environmental health and by association human health [1], [4], [8], [12], [13], [14], [15], [16], [17]. In the majority of these activities, sex of the mussels has not been determined and thus variation is likely to occur from study to study because of differences in the gender balance.…”

Section: Discussionmentioning

confidence: 99%

“…Chemicals may be determined directly or their biological effects can be measured by a number of indices (whole animal, cellular, molecular) [7], [8], [9], [10], [11]. The common mussel is thus a useful sentinel as a biological indicator of marine pollution and has been widely used in bio monitoring programmes like ‘mussel-watch’ [1], [12], [13], [14], [15], [16] and other research programs [1], [4], [8], [17], [18].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Annual Variation in the Levels of Transcripts of Sex-Specific Genes in the Mantle of the Common Mussel, Mytilus edulis

Anantharaman

Craft

2012

PLoS ONE

View full text Add to dashboard Cite

Mytilus species are used as sentinels for the assessment of environmental health but sex or stage in the reproduction cycle is rarely considered even though both parameters are likely to influence responses to pollution. We have validated the use of a qPCR assay for sex identification and related the levels of transcripts to the reproductive cycle. A temporal study of mantle of Mytilus edulis found transcripts of male-specific vitelline coat lysin (VCL) and female-specific vitelline envelope receptor for lysin (VERL) could identify sex over a complete year. The levels of VCL/VERL were proportional to the numbers of sperm/ova and are indicative of the stage of the reproductive cycle. Maximal levels of VCL and VERL were found in February 2009 declining to minima between July – August before increasing and re-attaining a peak in February 2010. Water temperature may influence these transitions since they coincide with minimal water temperature in February and maximal temperature in August. An identical pattern of variation was found for a cryptic female-specific transcript (H5) but a very different pattern was observed for oestrogen receptor 2 (ER2). ER2 varied in a sex-specific way with male > female for most of the cycle, with a female maxima in July and a male maxima in December. Using artificially spawned animals, the transcripts for VCL, VERL and H5 were shown to be present in gametes and thus their disappearance from mantle is indicative of spawning. VCL and VERL are present at equivalent levels in February and July–August but during gametogenesis (August to January) and spawning (March to June) VCL is present at lower relative amounts than VERL. This may indicate sex-specific control mechanisms for these processes and highlight a potential pressure point leading to reduced reproductive output if environmental factors cause asynchrony to gamete maturation or release.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Annual Variation in the Levels of Transcripts of Sex-Specific Genes in the Mantle of the Common Mussel, Mytilus edulis

Anantharaman

Craft

2012

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…Biomass combustion occurs at relatively low temperatures and is a significant source of pyrogenic PAHs in nearshore subtidal sediments (Barra et al 2007;Gogou et al 2000;Oanh et al 1999;Page et al 1999;Tobiszewski and Namiesnik 2012). However, aerosol from wheat and rice straw burning is enriched in HMW PAHs (Ravindra et al 2008 and references therein).…”

Section: Pyrogenicmentioning

confidence: 99%

“…Perylene (PER) is produced under several conditions: by diagenesis and biosynthesis from terrestrial precursors (e.g., perylenequinone pigment) or other organic matter; under anoxic conditions; and in soil and subtidal, marine and freshwater sediments (e.g., Boll et al 2008;Guo et al 2007;Venkatesan 1988;Zakaria et al 2002). In the tropics, termite nests may act as a perylene source in soil (Barra et al 2007;Mandalakis et al 2004;Wilcke et al 2002).…”

Section: Biogenic/diageneticmentioning

confidence: 99%

Reviews of Environmental Contamination and Toxicology

2015

Reviews of Environmental Contamination and Toxicology

View full text Add to dashboard Cite

“…The possible sources of PAHs contamination of foodstuffs in the modern human environment are numerous and varied. A review of the literature reveals that curing smokes, contaminated soils, polluted air and water, modes of cooking, food processing and endogenous sources have been considered [16][17][18][19]. In grilled meat, Emerole et al, [17] found that, smoked meat (shai) contained a relatively higher content of both benzo(a)anthracene and benzo(a)pyrene (PAH members) were 15.5 g/kg and 8.5 g/kg, respectively.…”

Section: Introductionmentioning

confidence: 99%

Influence of Charcoal Broiled Meat Consumption on the Liver Functions and Non-Enzymatic Antioxidants in Human Blood

Elhassaneen¹,

El-Badawy²

2013

FNS

View full text Add to dashboard Cite

The effect of ingesting charcoal-broiled beefburgers (CBB) on the liver functions and nonenzymatic antioxidant levels in human blood was examined in twenty-nine healthy individually males (mean age 21.65  1.32 years, range 20.32 -22.42 years), non-smokers and had no occupational exposure to PAHs, who consumed two charcoal grilled beefburger per day (mean weight 70 gm per each) at lunch time over 28 consecutive days. The mean daily intake of PAH during the consumption period was 3431 ng and the mean daily intake of PAH per kg body wt/day was 46 ng. Blood samples were collected from each subject 7, 14, 21 and 28 days before, during, and after the beefburgers consumption period. glutamic-oxaloacetic transaminase (GOT), glutamic-pyruvate transaminase (GPT) and alkaline phosphatase (ALP) were significantly higher in serum of subjects during CBB consumption period compared with those of before CBB consumption ones. All of the enzyme activities still increased upper the baseline levels, before CBB consumption period, by four week after charcoal broiled meat consumption ended. In contrary, the levels of non-enzymatic antioxidants include albumin (ALB), glutathione in serum (GSH-S) and erythrocytes (GSH-E) were significantly lower in subjects during CBB consumption period compared with those of before CBB consumption ones. All of the non-enzymatic antioxidant levels decreased to near baseline levels, before CBB consumption period, by four week after charcoal broiled meat consumption ended. Results suggested that non-enzymatic antioxidants defense system of serum and erythrocytes was depressed and the erythrocytes as well as liver cells were exposed to oxidant stress due to oral exposure of PAH.

show abstract

Polycyclic Aromatic Hydrocarbons in the South American Environment

Cited by 20 publications

References 40 publications

Annual Variation in the Levels of Transcripts of Sex-Specific Genes in the Mantle of the Common Mussel, Mytilus edulis

Annual Variation in the Levels of Transcripts of Sex-Specific Genes in the Mantle of the Common Mussel, Mytilus edulis

Reviews of Environmental Contamination and Toxicology

Influence of Charcoal Broiled Meat Consumption on the Liver Functions and Non-Enzymatic Antioxidants in Human Blood

Contact Info

Product

Resources

About