Lovely Professional University‚ Punjab Course Code Course Title Course Planner Lectures CHE883 ENVIRONMENT CHEMISTRY 15316::Pushp Lata Course Category Tutorials Practicals Credits Courses with numerical and conceptual focus 3.0 0.0 0.0 TextBooks Sr No Title Author T-1 Environmental Chemistry Edition Year Publisher Name Colin Baird‚ Michael Cann 4th 2008 W.H. Freeman and company Reference Books Sr No Title Author Edition
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- Environmental risk may affect the pregnancy if below guideline limit is exceeded : @ bone cement : the data in earlier literature showed in toxic doses to pregnant animal it can Can recurrent abortion‚ skeletal anomalies but in human was unclear . acute toxic dose in animals can casue lung damage and edema estimated at 3‚750 ppm = 15‚375 mg/m3 . In short term exposure of toxic
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soluble vitamins are vitamins that are stored in fatty tissues and in the liver. These vitamins‚ unlike water soluble vitamins‚ are stored for long periods of time in the body. As a result‚ consuming too many of the fat soluble vitamins can lead to toxicity problems throughout the body. According to Seager and Slabaugh‚ authors of Chemistry for Today: General‚ Organic‚ and Biochemistry‚ "Some vitamins (A‚ D‚ E‚ and K) have very nonpolar molecular structures and therefore dissolve only in nonpolar structures"
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includes testing to figure out the possible side effects‚ level of toxicity‚ adverse effect and addiction. During this phase the pharmacodynamics of the drug is explored‚ which includes the calculation of the drug’s effect whether it desired or undesired and it always depends on the time and dose. During the testing on the animals also develops the frequency distribution curve‚ half-life‚ median effective dose (ED50)‚ median toxicity dose and therapeutic index. When the testing on animals are finished
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References: Boyers‚ L. (2012). Fat Soluble vitamins and Toxicity. Retrieved from http://www.livestrong.com/article/327656-fat-soluble-vitamins-and-toxicity/ Boyers‚ L. (2012). Are Water Soluble Vitamins Toxic?. Retrieved from http://www.livestrong.com/article/331397-are-water-soluble-vitamins-toxic/ Farris‚ L. (2012). Classification of Vitamins. Retrieved
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Ricin is a toxic protein found in castor oil plant seeds. The toxicity of Ricin has been known for centuries and was even used by the KGB government to assassinate Georgi Markov‚ a famous journalist who openly criticized the Soviet Union’s communist regime. The toxicity of ricin is caused by its ability to deactivate ribosomes and halt protein synthesis. Therefore‚ Ricin is categorized as a ribosome inactivating protein (RIP). There are two types of RIPs: type I and type II. Type I RIPs are usually
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Biochemical Pathways of Heavy Metals Poisoning BIO101 (Principles of Biology) 6 July 2012 Abstract The biochemical pathways of heavy metal poisoning are routes by which the metals pass in the body as they impair and destroy normal cellular and organ activity. The most common types of heavy metal poisoning are caused by lead‚ arsenic‚ cadmium and mercury. They are also the most extensively studied at the moment. Lead poisoning occurs mainly by the inhibitory effect that the metal imposes on enzymes
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snakes. II. Toxicology: Assessing Chemical Hazards A. Harm from chemical exposure depends on the amount of exposure (dose)‚ frequency of exposure‚ which chemical is exposed‚ the body’s detoxification system‚ and one’s genetic makeup. 1. Toxicity measures how harmful a substance is in causing injury‚ illness‚ or death to a living organism. Several factors to consider are: a. dose‚ the amount of a substance a person is exposed to‚ b. frequency of exposure‚ c. age
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about these aggressive cancers was the protein TOPK. This protein is produced in many human cancers and is thought to encourage the growth of tumors. Professor Yusuke Nakamura wanted to target this protein with the new drug that lowered levels of toxicity while still shrinking tumors- this drug ended up being named OTS964. In order to test the drug‚ six mice with LU-99 lung tumors were injected with the drug and studied over a period of two weeks. All the mice recovered from the tumors. In five
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different oxidative states like trivalent Cr (III) and hexavalent chromium Cr(VI). Both these states differ in different aspcets like mobility‚bioavailabilty and toxicity (Shanker et al‚.2005;Panda and Choudhory ‚.2005). Toxic effects of chromium highly depend on the different states of the oxidative states. As the solubility and toxicity of the trivalalent chromium Cr+3 form is less than hexavalent chromium Cr+6 form ( Pandey and Sharma‚. 2003). Hexavalent chromium is converted to trivalent chromium
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