Short-term transformations of lead and cadmium compounds in soil after contamination

2003 ◽  
Vol 54 (2) ◽  
pp. 365-376 ◽  
Author(s):  
P. Bataillard ◽  
P. Cambier ◽  
C. Picot
Keyword(s):  
Short Term ◽  
Lead And Cadmium ◽  
Cadmium Compounds

scholarly journals PATHOPHYSIOLOGICAL, HISTOLOGICAL, HISTOCHEMICAL AND CLINICAL ASPECTS OF HEPATOTOXICITY CAUSED BY INTOXICATION OF LEAD AND CADMIUM COMPOUNDS

2021 ◽  
Vol 2 (1) ◽  
pp. 39
Author(s):  
O. O. Nefodova ◽  
K. S. Yanushkevych ◽  
K. A. Kushnaryova ◽  
I. I. Kolosova ◽  
O. V. Velykodna-Tanasiychuk ◽  
...  
Keyword(s):  
Clinical Aspects ◽  
Lead And Cadmium ◽  
Cadmium Compounds

scholarly journals EFFECTS OF LEAD AND CADMIUM INTOXICATION ON ANTIOXIDANT STATUS OF BROILER CHICKENS AND ITS CORRECTION WITH SYNTHETIC PREPARATIONS

2022 ◽  
pp. 7-18
Author(s):  
Yu. I. Koval
Keyword(s):  
Heavy Metals ◽  
Broiler Chickens ◽  
Antioxidant Status ◽  
Live Weight ◽  
The Body ◽  
Cadmium Content ◽  
Oxidation Reactions ◽  
Short Term ◽  
Lead And Cadmium

   The authors present the results of a study of the effects of long-term (1.5 MPa) and short-term (5, 10 and 15 MPa) intoxication with heavy metals on the antioxidant status of broiler chickens. The authors found that the addition of increased concentrations of toxicants to the diet leads to their accumulation in poultry’s muscle, fat tissues, and skin. According to the study, lead content increases by 2.25 times, cadmium content increases by 6.5 times. Lipophilic compounds Tiofan and Tiofan M have the most pronounced detoxifying effect in chronic intoxication. Fantox 11-1 is the most pronounced detoxifying effect among hydrophilic compounds, which are inferior to lipophilic ones. Accumulation of heavy metals in the body led to a decrease in the antioxidant status of poultry. There was an acceleration of oxidative processes in long-term experimental toxicosis up to 3.10, up to 21.00 times in the short-term. The addition of 100 mg of lipophilic antioxidants per 1 kg of live weight to the diet with 7.5 mg of lead and 0.75 mg of cadmium per 1 kg of feed resulted in a decrease in the rate of oxidation reactions. The presence of lead and cadmium ions in the tissues of poultry caused a reduction of induction periods in the temperature-stabilized samples to 90 %. Enrichment of the diet with Thiophan and Fantox 11-1 increased this indicator up to 12.40 times. The hydrophilic antioxidant Fantox 11-1 dosage of 15 mg per 1 kg of live weight had a pronounced effect. Its introduction into the diet will correct the lack of endogenous antioxidants and increase the body’s antioxidant status under the influence of heavy metals.

scholarly journals Expression of Antioxidant Enzymes and Changes in Some Physiological Parameters Following the Short-term Heavy Metal Application in Wheat

2020 ◽  
Vol 71 (6) ◽  
pp. 132-144
Author(s):  
Hulya Yildir ◽  
Filiz Sanal
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Antioxidant Enzymes ◽  
Metal Ion ◽  
Germination Rate ◽  
Primary Response ◽  
Physiological Parameter ◽  
Short Term ◽  
Short Term Treatment ◽  
Lead And Cadmium

The aim of this study was to investigate the changes of some biochemical parameters during the amelioration after period o short term treatment of wheat with arsenic, cadmium and lead. A decrease was observed in the experimental groups, in which 15 μM, 30 μM, and 60 μM (arsenic, lead, and cadmium) metal ion mixture was applied, in terms of the germination rate depending on the increased concentration, and a decrease was observed in the root and stem dry weights of the plants in all groups. MDA levels were determined to increase at all doses. It was determined that heavy metals accumulated by increasing in the tissues due to the increased concentration of heavy metals in the heavy metal ion-applied groups. There were significant changes in the expression levels of antioxidant enzymes. As a result, it was determined in the study that there were significant changes in some biochemical and physiological parameter�s which are the primary response to oxidative stress in plants exposed to heavy metals, depending on the stress. This reason it can be concluded that arsenic, lead and cadmium contents in media can be the responsible for growth inhibition.

Comparative Study of Lead and Cadmium Compounds Capture by Sorbents

2002 ◽  
Vol 35 (5) ◽  
pp. 401-408 ◽  
Author(s):  
Hong Yao ◽  
Noboru Saito ◽  
Iddi S. N. Mkilaha ◽  
Ichiro Naruse
Keyword(s):  
Comparative Study ◽  
Lead And Cadmium ◽  
Cadmium Compounds

Screening of sorbents and capture of lead and cadmium compounds during sewage sludge combustion

Fuel ◽  
2004 ◽  
Vol 83 (7-8) ◽  
pp. 1001-1007 ◽  
Author(s):  
Hong Yao ◽  
Iddi S.N. Mkilaha ◽  
Ichiro Naruse
Keyword(s):  
Sewage Sludge ◽  
Lead And Cadmium ◽  
Cadmium Compounds

Conceptual short-term memory (CSTM) supports core claims of Christiansen and Chater

2016 ◽  
Vol 39 ◽  
Author(s):  
Mary C. Potter
Keyword(s):  
Working Memory ◽  
Rapid Serial Visual Presentation ◽  
Language Comprehension ◽  
Short Term Memory ◽  
Visual Presentation ◽  
Long Term Memory ◽  
Short Term ◽  
Term Memory ◽  
Use Of Knowledge

AbstractRapid serial visual presentation (RSVP) of words or pictured scenes provides evidence for a large-capacity conceptual short-term memory (CSTM) that momentarily provides rich associated material from long-term memory, permitting rapid chunking (Potter 1993; 2009; 2012). In perception of scenes as well as language comprehension, we make use of knowledge that briefly exceeds the supposed limits of working memory.

Ultrastructural Changes of Canine Kidneys During 24-Hour Perfusion on a LI-400 Preservation System

1971 ◽  
Vol 29 ◽  
pp. 316-317
Author(s):  
M. O. Magnusson ◽  
D. G. Osborne ◽  
T. Shimoji ◽  
W. S. Kiser ◽  
W. A. Hawk
Keyword(s):  
Electron Microscopy ◽  
Electrolyte Solution ◽  
Ultrastructural Changes ◽  
Midline Incision ◽  
Short Term ◽  
Pentobarbital Anesthesia ◽  
Pulsatile Perfusion

Short term experimental and clinical preservation of kidneys is presently best accomplished by hypothermic continuous pulsatile perfusion with cryoprecipitated and millipore filtered plasma. This study was undertaken to observe ultrastructural changes occurring during 24-hour preservation using the above mentioned method.A kidney was removed through a midline incision from healthy mongrel dogs under pentobarbital anesthesia. The kidneys were flushed immediately after removal with chilled electrolyte solution and placed on a LI-400 preservation system and perfused at 8-10°C. Serial kidney biopsies were obtained at 0-½-1-2-4-8-16 and 24 hours of preservation. All biopsies were prepared for electron microscopy. At the end of the preservation period the kidneys were autografted.

Polychlorinated biphenyl induced hepatocyte alterations

1987 ◽  
Vol 45 ◽  
pp. 716-717
Author(s):  
D.N. Collins ◽  
J.N. Turner ◽  
K.O. Brosch ◽  
R.F. Seegal
Keyword(s):  
Lipid Droplets ◽  
Wistar Rats ◽  
Homovanillic Acid ◽  
Polychlorinated Biphenyl ◽  
Corn Oil ◽  
Environmental Pollutants ◽  
Short Term ◽  
Pcb Congeners ◽  
Urinary Levels ◽  
The Brain

Polychlorinated biphenyls (PCBs) are a ubiquitous class of environmental pollutants with toxic and hepatocellular effects, including accumulation of fat, proliferated smooth endoplasmic recticulum (SER), and concentric membrane arrays (CMAs) (1-3). The CMAs appear to be a membrane storage and degeneration organelle composed of a large number of concentric membrane layers usually surrounding one or more lipid droplets often with internalized membrane fragments (3). The present study documents liver alteration after a short term single dose exposure to PCBs with high chlorine content, and correlates them with reported animal weights and central nervous system (CNS) measures. In the brain PCB congeners were concentrated in particular regions (4) while catecholamine concentrations were decreased (4-6). Urinary levels of homovanillic acid a dopamine metabolite were evaluated (7).Wistar rats were gavaged with corn oil (6 controls), or with a 1:1 mixture of Aroclor 1254 and 1260 in corn oil at 500 or 1000 mg total PCB/kg (6 at each level).

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