Animal size impacts perfluoroalkyl acid (PFAA) concentrations in muscle tissue of estuarine fish and invertebrate species

2020 ◽  
Vol 267 ◽  
pp. 115595
Author(s):  
Matthew D. Taylor
Keyword(s):  
Muscle Tissue ◽  
Estuarine Fish ◽  
Invertebrate Species ◽  
Animal Size ◽  
Perfluoroalkyl Acid

scholarly journals Metal contamination and oxidative stress biomarkers in estuarine fish following a mine tailing disaster

2020 ◽  
Author(s):  
Fabrício Ângelo Gabriel ◽  
Rachel Ann Hauser-Davis ◽  
Lorena Oliveira Souza Soares ◽  
Ana Carolina de Azevedo Mazzuco ◽  
Rafael Christian Chávez Rocha ◽  
...  
Keyword(s):  
Trace Metals ◽  
Trace Metal ◽  
Muscle Tissue ◽  
Fish Species ◽  
Metal Contamination ◽  
Contaminated Sediments ◽  
Estuarine Sediments ◽  
Estuarine Fish ◽  
Human Consumption ◽  
Metal Concentrations

AbstractThe Rio Doce estuary in Brazil was impacted by the deposition of mine tailings caused by the collapse of a mining dam in 2015. Since the disaster, the estuary is experiencing chronic trace metal contamination effects, but potential trace metal accumulation in fishes has not been reported. Trace metals in aquatic ecosystems pose severe threats to the aquatic biota, so we hypothesized that the accumulation of trace metals in estuarine sediments nearly two years after the disaster would cause contaminant bioaccumulation, resulting in the biosynthesis of metal-responsive proteins in fishes. We determined trace metal concentrations in sediment samples, metal concentrations, and quantified stress protein concentrations in the liver and muscle tissue of five different fish species in the estuary. Our results revealed high concentrations of trace metals in estuarine sediments when compared to published baseline values for this estuary. The demersal fish species Cathorops spixii and Genidens genidens had the highest Hg, As, Se, Cr, and Mn concentrations in both hepatic and muscle tissues. Metal bioaccumulation in fish was statistically correlated with the biosynthesis of metallothionein and reduced glutathione in both fish liver and muscle tissue. The trace metals detected in fish tissues resemble those in the contaminated sediments present at the estuary at the time of this study and were also significantly correlated to protein levels. Trace metals in fish muscle were above the maximum permissible limits for human consumption, suggesting potential human health risks that require further determination. Our study supports the high biogeochemical mobility of trace metals between contaminated sediments and local biota in estuarine ecosystems.

Migration histories and perfluoroalkyl acid (PFAA) loads in an estuarine fish: A novel union of analyses to understand variation in contaminant concentrations

2021 ◽  
Vol 276 ◽  
pp. 116686
Author(s):  
Matthew D. Taylor ◽  
Bronwyn M. Gillanders ◽  
Sandra Nilsson ◽  
Jennifer Bräunig ◽  
Thomas C. Barnes ◽  
...  
Keyword(s):  
Estuarine Fish ◽  
Perfluoroalkyl Acid

AN UNUSUAL CASE OF EXOPHTHALMOS WITH GENERAL CONNECTIVE TISSUE CHANGES

1960 ◽  
Vol XXXIII (IV) ◽  
pp. 613-622 ◽  
Author(s):  
B.-A. Lamberg ◽  
O. Wegelius ◽  
B. Kuhlbäck ◽  
C. Olin-Lamberg
Keyword(s):  
Renal Failure ◽  
Connective Tissue ◽  
Beneficial Effect ◽  
Muscle Tissue ◽  
Clinical Picture ◽  
Unusual Case ◽  
Systemic Treatment ◽  
Nasal Epithelium ◽  
Tissue Changes ◽  
Histochemical Examination

ABSTRACT A case is described of a man of 48, who presented a history and clinical picture of a solitary thyro-hypophysial syndrome with malignant exophthalmos but in which general connective tissue changes were found on histological and histochemical examination of the retrobulbar connective tissue and muscles, of the pretibial connective and muscle tissue and the nasal epithelium. The intraocular tension was increased. In addition, renal failure developed. The use of cortisol locally in the eyes had a beneficial effect on the eye syndrome. Systemic treatment with corticotrophin and prednisolone had an evident beneficial effect on the renal condition.

The Larvae of Mass Benthic Invertebrate Species in the Plankton of Sevastopol Bay

2002 ◽  
Vol 38 (3) ◽  
pp. 8
Author(s):  
V. V. Murina ◽  
Ye. V. Lisitskaya ◽  
V. K. Shalyapin
Keyword(s):  
Benthic Invertebrate ◽  
Invertebrate Species ◽  
Sevastopol Bay

1172-P: GLUT4-Overexpressing Engineered Muscle Tissue Implants as a Potential Novel Therapy for Type 2 Diabetes: Lessons from Diabetic Mice

Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 1172-P
Author(s):  
MARGARITA BECKERMAN ◽  
EDDY KARNIELI ◽  
CHAVA HAREL ◽  
AMIRA KLIP ◽  
PHILIP J. BILAN ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Muscle Tissue ◽  
Diabetic Mice ◽  
Novel Therapy

Thoracic duct lymph. Relative contribution from splanchnic and muscle tissue

Diabetes ◽  
1993 ◽  
Vol 42 (5) ◽  
pp. 720-731 ◽  
Author(s):  
G. M. Steil ◽  
M. A. Meador ◽  
R. N. Bergman
Keyword(s):  
Muscle Tissue ◽  
Thoracic Duct ◽  
Thoracic Duct Lymph ◽  
Relative Contribution ◽  
Duct Lymph

Justification of technical parameters of an ultrasonic device for improvement of meat salting efficiency

2020 ◽  
pp. 75-77
Author(s):  
Ekaterina Sergeevna Krasnikova ◽  
Natalya Lvovna Morgunova ◽  
Phelix Yakovlevich Rudik ◽  
Aleksandr Vladimirovich Krasnikov ◽  
Nikita Andreevich Semilet
Keyword(s):  
Technological Process ◽  
Muscle Tissue ◽  
Muscle Fibers ◽  
Tissue Structure ◽  
Tissue Microstructure ◽  
Technical Parameters ◽  
Ultrasonic Device ◽  
Lamb Meat ◽  
Local Destruction ◽  
Cross Striation

The results of a study of the effect of wet ultrasonic lamb meat salting on the muscle tissue microstructure are presented, and the technical parameters of the ultrasonic device are justified. It has been established that significant destruction and swelling of muscle fibers, local destruction of the sarcolemma with its pronounced rugosity are observed at ultrasonic salting with a frequency of 35 kHz, the cross-striation is poorly expressed, the tissue structure is disturbed. An ultrasonic salting with a frequency of 26 kHz was accompanied an increase in the number of transverse microcracks and crevices, loosening of muscle fibers, the formation of cavities between them while retention of the tissue structure, which contributes to the appearance of a brine between muscle fibers and accelerates its penetration into the fiber. It allows us to recommend ultrasound at a frequency of 26 kHz for cavitation activation of the brine to intensify the technological process of lamb meat salting.

The Effect of Invertebrate Infestation on Green Turtle (Chelonia mydas) Nests on Kazanlı Beach, Mersın, Turkey

2020 ◽  
Vol 27 (5) ◽  
pp. 245-256
Author(s):  
Cemil Aymak ◽  
Aşkın Hasan Uçar ◽  
Yusuf Katılmış ◽  
Eyup Başkale ◽  
Serap Ergene
Keyword(s):  
Green Turtle ◽  
Hatching Success ◽  
Negative Relationship ◽  
Chelonia Mydas ◽  
Sea Turtle ◽  
Faunal Composition ◽  
Independent Variables ◽  
Invertebrate Species ◽  
First Time ◽  
Nesting Season

In this study invertebrate infestation in green turtle (Chelonia mydas) nests were recorded for the first time for Kazanlı beach, Mersin, Turkey. For this aim, in 2006 nesting season, 294 natural intact green turtle nests were sampled to examine their contents and invertebrate infestation was found in 76 (25.85% of the total sampling green turtle nests). These infested nests were examined in terms of the invertebrate faunal composition. The specimens found in the green sea turtle nests were identified to order, family or genus levels and they were represented in 5 orders. These invertebrate groups are Elater sp. larvae (Elateridae; Coleoptera), Pimelia sp. larvae (Tenebrionidae; Coleoptera), Enchytraeidae (Oligochaeta), Cyrptostigmata (Acari), Oniscidae (Isopoda), Formicidae (Hymenoptera). Elater sp. was the most common invertebrate group in the green turtle nests. According to student t test, we found statistically significant differences between 7 independent variables and invertebrate species presence. Furthermore, logistic regression analysis explained that there is a negative relationship between hatching success rate and invertebrate species presence.

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