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Signs and symptoms. "Encephalopathy" is a general term describing brain malfunctions and "toxic" asserts that the malfunction is caused by toxins on the brain. The most prominent characteristic of toxic encephalopathy is an altered mental status. Acute intoxication is a reversible symptom of exposure to many synthetic chemical neurotoxicants.
Persistent, bioaccumulative and toxic substances ( PBTs) are a class of compounds that have high resistance to degradation from abiotic and biotic factors, high mobility in the environment and high toxicity. Because of these factors PBTs have been observed to have a high order of bioaccumulation and biomagnification, very long retention times ...
Oncology, neurology. A central nervous system tumor ( CNS tumor) is an abnormal growth of cells from the tissues of the brain or spinal cord. [1] CNS tumor is a generic term encompassing over 120 distinct tumor types. [2] Common symptoms of CNS tumors include vomiting, headache, changes in vision, nausea, and seizures. [3]
Brain imaging [1] A glioma is a type of primary tumor that starts in the glial cells of the brain or spinal cord. They are cancerous but some are extremely slow to develop. [2] [3] Gliomas comprise about 30 percent of all brain tumors and central nervous system tumours, and 80 percent of all malignant brain tumours.
Glioblastoma. Glioblastoma, previously known as glioblastoma multiforme ( GBM ), is the most aggressive and most common type of cancer that originates in the brain, and has a very poor prognosis for survival. [6] [7] [8] Initial signs and symptoms of glioblastoma are nonspecific. [1] They may include headaches, personality changes, nausea, and ...
t. e. Industrial wastewater treatment describes the processes used for treating wastewater that is produced by industries as an undesirable by-product. After treatment, the treated industrial wastewater (or effluent) may be reused or released to a sanitary sewer or to a surface water in the environment. Some industrial facilities generate ...
A brain tumor occurs when abnormal cells form within the brain. [2] There are two main types of tumors: malignant (cancerous) tumors and benign (non-cancerous) tumors. [2] These can be further classified as primary tumors, which start within the brain, and secondary tumors, which most commonly have spread from tumors located outside the brain ...
Environmental toxicology is a multidisciplinary field of science concerned with the study of the harmful effects of various chemical, biological and physical agents on living organisms. [1] [2] Ecotoxicology is a subdiscipline of environmental toxicology concerned with studying the harmful effects of toxicants at the population and ecosystem ...