Chronic toxicity of thiodanr (endosulfan) insecticide to louisiana crayfish, procambarus clarkii

The lateral giant (LG) to motor giant (MoG) synapses in crayfish (Procambarus clarkii) abdominal ganglia are the classic electrotonic synapses. They have previously been described as having synaptic vesicles and as having them on both the pre- and postsynaptic sides of symmetrical synaptic junctions. This positioning of vesicles would make these very atypical synapses, but in the present work on the crayfish Astacus pallipes the motor giant has never been found to contain any type of vesicle at its synapses with the lateral giant fiber.The lateral to motor giant fiber synapses all occur on short branches off the main giant fibers. Closely associated with these giant fiber synapses are two small presynaptic nerves which make synaptic contact with both of the giant fibers and with their small branches.

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Carcinogenicity and Chronic Toxicity of Para-Chloronitrobenzene in Rats and Mice by Two-Year Feeding

Journal of Environmental Pathology Toxicology and Oncology ◽

10.1615/jenvironpatholtoxicoloncol.v25.i3.20 ◽

2006 ◽

Vol 25 (3) ◽

pp. 571-584 ◽

Cited By ~ 18

Author(s):

Michiharu Matsumoto ◽

Shigetoshi Aiso ◽

Hideki Senoh ◽

Kazunori Yamazaki ◽

Heihachiro Arito ◽

...

Keyword(s):

Chronic Toxicity ◽

Rats And Mice

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Acute and chronic toxicity studies on Polygonum glabrum in experimental animals

International Journal of Pharmacometrics and Integrated Biosciences ◽

10.26452/ijpib.v3i1.1216 ◽

2020 ◽

Vol 3 (1) ◽

pp. 7-10

Author(s):

Saravanakumar A ◽

Gandhimathi R

Keyword(s):

Chronic Toxicity ◽

Clinical Stage ◽

Herbal Medicines ◽

Plant Roots ◽

Root Extract ◽

Experimental Animals ◽

Toxicity Studies ◽

Acute And Chronic Toxicity ◽

Diuretic Agents

Polygonum glabrum is being used in traditional and folklore medicine to treat pneumonia and jaundice. Plant roots are used in ayurvedic preparations to treat fever and colic. The leaves are used as diuretic agents and process vermifuge action. Plant decoction is also used in the treatment of Rheumatism. Besides having many uses and folklore claims, herbal medicines are to be thoroughly investigated for their toxicity also. Therefore this work is being carried out to examine the toxicity of the drug and established dose is safe to use in the clinical stage. The current research studied the acute and chronic toxicity of Polygonum glabrum root extract in rats. It is proved that there was no change in any parameter tested both in acute and chronic toxicity, which means the extract is safe and non-toxic at the dose of 2g/kg also.

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Optimization and Physicochemical Characterization of Chitosan and Chitosan Nanoparticles Extracted from the Crayfish Procambarus clarkii Wastes

Journal of Shellfish Research ◽

10.2983/035.038.0220 ◽

2019 ◽

Vol 38 (2) ◽

pp. 385 ◽

Cited By ~ 3

Author(s):

Marwa M. El-Naggar ◽

Wael S. I. Abou-Elmagd ◽

Ashraf Suloma ◽

Hamza A. El-Shabaka ◽

Magdy T. Khalil ◽

...

Keyword(s):

Procambarus Clarkii ◽

Chitosan Nanoparticles ◽

Physicochemical Characterization

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Water quality. Determination of chronic toxicity to Ceriodaphnia dubia

10.3403/30037886u ◽

2015 ◽

Keyword(s):

Water Quality ◽

Chronic Toxicity ◽

Ceriodaphnia Dubia

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ECOLOGICAL AND TOXICOLOGICAL ASSESSMENT OF HAZARD, POSED BY WATER CONTAMINATION OF WATER BODIES WITH POLYVINYL NITRATE

Токсикологический вестник ◽

10.36946/0869-7922-2018-1-12-19 ◽

2018 ◽

pp. 12-19 ◽

Cited By ~ 1

Author(s):

A. A. Maslennikov ◽

S. A. Demidova ◽

A. V. Ryabova

Keyword(s):

Biochemical Oxygen Demand ◽

Water Contamination ◽

Chronic Toxicity ◽

Negative Impact ◽

Oxygen Demand ◽

Water Bodies ◽

Organoleptic Properties ◽

Toxicological Assessment ◽

Threshold Levels ◽

Polyvinyl Nitrate

Water containing polyvinyl nitrate was experimentally assessed on the basis of organoleptic, general sanitary and toxicological indicators of harmfulness. It was established that that the compound did not change water organoleptic properties but produced a negative impact on viability of saprophytic microflora , nitrification processes and biochemical oxygen demand. Besides, in tests on animals. the substance caused acute, sub-acute and chronic toxicity. Based on those signs of harmfulness, threshold levels of exposure were established. Data obtained were taken into account for substantiation of MAC (Maximum allowable concentration) of polyvinyl nitrate in water bodies.

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