scholarly journals Toxicity Study for Halogenated Aromatics to Mixed Bacteria in River Water

2011 ◽  
Vol 10 ◽  
pp. 209-214 ◽  
Author(s):  
G.H. Lu ◽  
Y.M. Li ◽  
J.C. Liu
Keyword(s):  
River Water ◽  
Toxicity Study ◽  
Mixed Bacteria ◽  
Halogenated Aromatics

Silicon Substitution for Calcium in the Shell of the Fingernail Clam, Musculium Transversum Studied By X-Ray Analysis

1980 ◽  
Vol 38 ◽  
pp. 560-561
Author(s):  
Judith A. Murphy ◽  
Anthony Paparo ◽  
Richard Sparks
Keyword(s):  
Carbonic Anhydrase ◽  
River Water ◽  
Food Chains ◽  
Well Water ◽  
Shell Formation ◽  
X Ray ◽  
Molluscan Shell ◽  
Fingernail Clams

Fingernail clams (Muscu1ium transversum) are dominant bottom-dwelling animals in some waters of the midwest U.S. These organisms are key links in food chains leading from nutrients in water and mud to fish and ducks which are utilized by man. In the mid-1950’s, fingernail clams disappeared from a 100-mile section of the Illinois R., a tributary of the Mississippi R. Some factor(s) in the river and/or sediment currently prevent clams from recolonizing areas where they were formerly abundant. Recently, clams developed shell deformities and died without reproducing. The greatest mortality and highest incidence of shell deformities appeared in test chambers containing the highest proportion of river water to well water. The molluscan shell consists of CaCO3, and the tissue concerned in its secretion is the mantle. The source of the carbonate is probably from metabolic CO2 and the maintenance of ionized Ca concentration in the mantle is controlled by carbonic anhydrase. The Ca is stored in extracellular concentric spherical granules(0.6-5.5μm) which represent a large amount of inertCa in the mantle. The purpose of this investigation was to examine the role of raw river water and well water on shell formation in the fingernail clam.

Toxicity Study of Di(2-Ethylhexyl)phthalate (DEHP) in Combination with Acetone in Rats

2000 ◽  
Vol 86 (2) ◽  
pp. 92-100 ◽  
Author(s):  
Majken DalgaardNote ◽  
Grete Ostergaard ◽  
Henrik Rye Lam ◽  
Ernst V. Hansen ◽  
Ole Ladefoged
Keyword(s):  
Toxicity Study ◽  
Ethylhexyl Phthalate

A subchronic oral toxicity study on medical herb extract, KIOM CRC#BP10A, in male and female mice

Planta Medica ◽  
2015 ◽  
Vol 81 (16) ◽  
Author(s):  
ES Cho ◽  
YJ Lee ◽  
JS Park ◽  
J Kim ◽  
NS Kim ◽  
...  
Keyword(s):  
Toxicity Study ◽  
Oral Toxicity ◽  
Male And Female ◽  
Female Mice ◽  
Subchronic Oral Toxicity Study ◽  
Herb Extract

Subchronic 90-day oral toxicity study of Chelidonii herba in pigs

Planta Medica ◽  
2007 ◽  
Vol 73 (09) ◽  
Author(s):  
P Kosina ◽  
J Drabek ◽  
J Vicar ◽  
J Vostalova ◽  
J Ulrichova ◽  
...  
Keyword(s):  
Toxicity Study ◽  
Oral Toxicity

PHARMACOGNOSTIC, ANTIOXIDANT AND ACUTE TOXICITY STUDY OF Ficus sycomorus (Linn) (Moraceae) ROOT AND STEM BARK

2020 ◽  
Vol 4 (2) ◽  
pp. 605-614
Author(s):  
Murtala M. Namadina ◽  
H. Haruna ◽  
U. Sanusi
Keyword(s):  
Acute Toxicity ◽  
Radical Scavenging ◽  
Stem Bark ◽  
The Body ◽  
Toxicity Study ◽  
Bark Extract ◽  
Root Extract ◽  
Acute Toxicity Study ◽  
Radical Scavenging Ability ◽  
Phytochemical Components

Most of biochemical reactions in the body generates Reactive Oxygen Species (ROS), which are involved in the pathogenesis of oxidative stress-related disorders like diabetes, nephrotoxicity, cancer, cardiovascular disorders, inflammation and neurological disorders when they attack biochemical molecules like proteins, lipids and nucleic acid. Antioxidants are used to protect the cells or tissues against potential attack by ROS. Most medicinal plants possess a rich source of antioxidants such as flavonoids, phenols, tannins, alkaloids among others. These phytochemicals are currently pursued as an alternative and complimentary drug. In this study, phytochemical components, antioxidant and acute toxicity study of the methanol extract of stem bark and root of F. sycomorus were carried out using standard methods. Findings from this study revealed the presence of some diagnostic microscopical features such as calcium oxalate, starch, gum/mucilage, lignin, Aleurone grain, suberized/Cuticular cell wall and inulin but calcium carbonate was absent in stem bark but present in the powdered root. Quantitative physical constants include moisture contents (6.40% and 7.82%), ash value (7.20% and 9.30 %) in stem bark and root respectively. Carbohydrates, alkaloid, flavonoids, saponins, tannins, glycoside, steroid, triterpenes and phenols were present in all the extracts. They were found to exhibit potent 1,1,-diphenyl 2-picryl hydrazyl (DPPH) free scavenging activity. The DPPH radical scavenging ability of the extracts showed the following trend Ascorbic acid < stem bark extract˃ root extract. The LD50 of the methanolic stem bark and root extracts were found to be greater than 5000 mg /kg and is considered safe for use. Nonetheless, further

103. Multi-Generation Reproductive Toxicity Study of Implanted Depleted Uranium in Rats

2004 ◽  
Author(s):  
D. Arfsten ◽  
A. Thitoff ◽  
E. Johnson ◽  
A. Jung ◽  
W. Jederberg ◽  
...  
Keyword(s):  
Reproductive Toxicity ◽  
Depleted Uranium ◽  
Toxicity Study

The Study on Phytoplankton Diversity from Godavari River Water

2012 ◽  
Vol 3 (4) ◽  
pp. 119-121
Author(s):  
I. B. Ghorade I. B. Ghorade ◽  
◽  
Thakur V. R Thakur V. R ◽  
S.S. Patil S.S. Patil
Keyword(s):  
River Water ◽  
Phytoplankton Diversity ◽  
Godavari River
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