Arsenic Essay

In the present study, the MDA level was measured as an index of lipid peroxidation in order to observe the effect of caffeine on the oxidative stress induced by AlCl3 in cortex, hippocampus and striatum brain areas. Brain tissues are more vulnerable to oxidative stress other than tissues for many reasons such as high oxygen consumption (more than 20% of the total inspired oxygen), the presence of abundant amount of polyunsaturated fatty acids which are susceptible to free radicals attack, low antioxidant levels, high iron content in addition to the non-regenerative nature of neurons (Nehru and Anand, 2005; Kim et al., 2015). All these reasons may explain why brain is more susceptible to aluminum toxicity than other organs. In the present

What is asbestos you ask? Well asbestos is the name for a group of naturally occurring silicate minerals that can be separated into fibers. The fibers are strong, durable, and resistant to heat and fire. They are also long, thin, and flexible, so that they can even be woven into cloth. Because of these qualities, asbestos has been used in thousands if consumer, industrial, maritime, automotive, scientific and building products. During the twentieth century, some 30 million tons of asbestos were used in industrial sites, homes, schools, shipyards and commercial buildings in the United States.

Arsenic is rapidly cleared from the body and often is undetectable after only a few hours. However, continuous exposure to arsenic can result in severe poisoning and multiple organ involvement. Arsenic is one of the most common pollutants and contamination of food and water is widespread and consumption is significant. Recent studies have linked a correlation between dermatofibromas and arsenic. One study suggested that the combination of dermatofibromas and arsenic caused the development of breast cancer. However, the exact cause in development of dermatofibroma is unknown but damage to the endothelial cells is commonly caused by arsenic exposure. Instead of the arsenic being excreted in eccrine glands, arsenic becomes deposited in a concentrated area of the body and built over a period of time causes the growth and development of

Arsenic has been shown to cause cancer and deaths. However, the element is multifaceted because in other studies it has been shown to have a healing effect. Be that as it may, the component is clearly exceptionally equivocal in light of the fact that in different reviews it has been appeared to have a recovering impact.

While nitrates are one of the major contaminants in the area, San Joaquin Valley residents face drinking water pollution from many other sources including arsenic, coliform bacteria, and pesticides. Arsenic is a naturally occurring semi-metal element that is found in different types of rocks. While arsenic primarily occurs naturally, human activities impact the amount of arsenic in groundwater. Arsenic is not only toxic at high concentrations, but also harmful after prolonged exposure at moderately elevated levels. California recognizes arsenic as a human carcinogen and believes prolonged exposure to the element to be associated with various cancers, including skin, bladder, kidney, lung, and liver cancers. A study in Maine found a connection between water contaminated

Zinc, number 30 on the periodic table and a bluish-white metallic element, exists naturally in air, water and soil. It is present everywhere in the environment. All life on earth has evolved in the presence of zinc. Natural processes such as erosion, forest fires, aerosol formation above the seas and volcanic eruptions continuously transport Zinc. Zinc melts at about 420° C and boils at about 907° C. Zinc is efficient for plants. Zinc-deficient soils present in many parts of the world are a cause of low crop yields. Not only does it help plants but also the human body. It is responsible for the proper functioning of more than 300 enzymes in the human body, and is vital for the immune system. It will also fight against cold

Studies have shown a combination of genetic and environmental factors, which cause both chemical and structural problems in the brain, disconnecting areas that normally will work together. The main factors for the development of Alzheimer’s disease are family history of dementia and old age. Some other significant factors will include head trauma, high blood pressure, and high levels of homocysteine. While the progression of Alzheimer’s disease can be slowed to a certain degree, there are no treatments that will restore the impaired functions and the disease cannot be cured. Usual treatment will focus on slowing the progression of the illness, managing the patient’s behavioral problems, his confusion and agitation, and modifying the home

The subject of black mold gathered a lot of attention in the late 1990’s. Up to that time, little attention had been given to this topic and there were few government regulations regarding black mold.

According to most research, scientists, doctors and psychologists say that the causes of the brain damages are genetic factors, nutritional disorders, toxic exposure and radiation factors. In genetic factors, it is studied that Alzheimer’s disease can be caused due to hereditary. This is most commonly seen on patients who suffer the disease before the age of 50. In nutritional factors, scientists project some vitamin deficiencies can lead to Alzheimer disease.

The primary sources for arsenic in the general population include contaminated water, food, and soil. The two forms of inorganic arsenic include: trivalent arsenic (As III) and pentavalent arsenic (As V). The most common inorganic form of arsenic in the environment is pentavalent arsenic. When comparing toxicity, trivalent arsenic is approximately 2-10 times more toxic pentavalent arsenic. Arsenic poisoning produces effects on multiple body systems with the inorganic forms being highly toxic. Both trivalent arsenic and pentavalent arsenic have different mechanisms of action, which determines the effects they have on cells.

Arsenic is a poison that interferes with ATP production. It is a metalloid that is found in our environment. Arsenic is toxic if inhaled and must be combined with another source for it to react and affect something. It comes in various forms such as crystalline, powder, vitreous and amorphous. Arsenic can be found in groundwater that people use for drinking. Groundwater contamination is usually occurring from a leak due to industrial exposure.

     Copper is one of the earliest elements known to man. Because of its distinct red color, Copper is very easily identified. In the ancient times, copper could be found lying in the ground in its unattached state without interaction to other substances. Copper and its compounds have many uses in today’s society.

The Aluminum also interferes in the Na+/K+ATPase, a protein that appears in high quantity in the neurons and in the glial cells. The main function of this protein in the brain is related with the fluidity of the membranes and the regulation of the excitability of the neurons and the maintainence of eletrochemicals gradient. (Roesky et al., 2002). The Aluminum inhibits the activity of the Na+K+ATPase, which is a target of the oxidative stress of the neuron, and this oxidative stress is a consequence of Alzheimer’s. (Roesky, 2002).

In today’s society chemicals, whether you like it or not are a fact of life. Many people are afraid of chemicals and their effects on them and the environment. This is understandable because the truth of the matter is that chemicals can do some horrible things to humans, animals and the whole ecosystem. Some would say that chemicals should be done away with for these reasons. But this certainly is not true and most likely impossible. Chemicals can also have some very positive effects on our lives. Some uneducated people would argue that there should not be restrictions on chemicals. This is just as crazy as saying that chemicals should be done away with. If chemicals are regulated and people abide

Nanomaterials have some neuro-toxicity including short-term memory reduction and learning ability decreasing[6]. Also, it was reported that the prenatal exposure to nanoparticles can effects on neurobehavioral development[7] via ROS augmentation in hippocampus[8]. In particular, females are more prone to nanoparticle diverse effects as their toxicity may lead to impairment of reproductively and fetal development[9]. Ag-NPs, in perticular, can pass blood brain barrier (BBB) so, they can accumulate in the brain[10]. Also it was shown that even in low concentration, silver has long maintenance time in brain than the other tissues[11]. Furthermore, Ag-NPs retention time in mouse body was more than 4 months. These findings provide enough time for Ag-NPs to affect on neural cells natural physiology and development. It was recorded that Ag-NPs pass from placenta, as a vital barrier, so it causes neurotoxicity in the fetus[12], [13]. Also some studies reported that Ag-NPs are accumulated in fetuses tissues by passing from placenta[14]. But still little information is available associated to the relation between prenatal Ag-NPs exposure and following behavioral performance. Various application in medicine, passage from the placenta and following that passing from the BBB, long maintaining and long retention time come to consideration this