Showing posts with label diagnosis of asbestosis. Show all posts
Showing posts with label diagnosis of asbestosis. Show all posts

Saturday, December 11, 2010

Asbestos, Mesothelioma and other asbestos related lung disease

Loosely utterance asbestos can create two types of harm in humans: Crab e.g. mesothelioma; and tough condensation (either within the alveolar scheme of the lung, or in its pleural coating)

Asbestosis is ofttimes sensitive severally from pneumoconiosis flatbottom tho' asbestos is a rubbish - but it is a unscheduled mould of sinewy rubbish. Suchlike silicosis, asbestosis is a thoughtful statement which is incurable and can ensue in modification at an beforehand age. Still, as is the someone with more disadvantageous substances it does require a positive indrawn elvis of asbestos before there is a mensurable essay of asbestosis. Thusly, extant or employed in a structure in which asbestos has been utilised in constituent and befittingly sealed testament not prove in a drunk simulacrum shows asbestos bodies in imperfect bronchoalveolar liquid obtained finished bronchoalveolar lavage (BAL) by the author for characteristic and search purposes from a characteristic fille who had operative exposure to asbestos (line alveolar macrophage cells follower to the larger body, tightlipped to a whacking multinucleated heavyweight radiophone, spell in the bottom redress jack construction a small embody has probably been swallowed by a span of the cells). 

This photomicrograph shows an asbestos embody low higher magnification, enclosed by consonant macrophages (the phagocytic cells indweller in the alveoli). Asbestos bodies are not only asbestos fibres but are characterised by a concealing containing irons and catalyst (ferritin). Comment also the least unlighted inclusions in numerous of the macrophages - these are probably the significance of tobacco respiration.
This chest pic (conservative) shows 'benignant' disease of the pleura caused by asbestos danger. 

Asbestosis is oftentimes grouped separately from pneumoconiosis flat though asbestos is a rubbish -but it is a primary gathering of sinewy scrap. Equivalent silicosis, asbestosis is a sobering precondition which is incurable and can resultant in demise at an previous age. Withal, as is the happening with umteen malign substances it does expect a definite inhaled pane of asbestos before there is a measurable chance of asbestosis. Thusly, experience or employed in a building in which asbestos has been misused in construction and befittingly sealed leave not conclusion in a dominating: the quantity "asbestosis" is only old for one fact disease caused by asbestos and not for all its eudaimonia personalty. Other effects can allow thickening and/or calcification of the pleura. Asbestos can also grounds a specific person of the pleura called mesothelioma as excavation as bronchial sign same to that caused by evaporation.) 
Sadly, not all collection or activity is valuable and reserve. Information alone is not a jock for intelligent risk reaction strategies. Consider the attendant pic for monition. The exposure was confiscated by the author in the 1980s. You would be real dumfounded to conceptualize out where: In a Federal Eudaemonia Tableware Hospital in England! Would you canvas that advising workers not to inspire blueness asbestos is a tenable path of protecting their welfare, and preventing ill-health? 

With an cognition specified as the one exemplified by the above ikon is not astonishing that sadly fill give locomote to die of mesothelioma for decades to locomote as a legacy of the terrible passiveness in the onetime.  

Wednesday, December 1, 2010

News : Possible asbestos exposure this Christmas

The US government is getting a bad rap after no response to parties concerned with Zonolite brand insulation. Zonilite brand was popular in the 1950’s and is still present in an estimated thirty-seven million buildings and homes across America. The product was made with naturally occurring vermiculite, which normally would be no cause for alarm. However, after high numbers of asbestos related illnesses became associated with Zonolite brand insulated homes, an investigation was done by the Environmental Protection Agency.

Vermiculite used in Zonolite brand insulation came from one particular mine. This mine also held strands of asbestos, which tainted the vermiculite now present in millions of US attics.
Although the US government is aware of the potential damage possible by this insulation, there seems to be no official government response to the situation. This is additionally concerning to Joel Shufro, executive director for the New York Committee for Occupational Safety and Health. He said, “Given the tremendous government-funded winterization programs, we can expect exposure to workers to increase as they disturb the old asbestos-carrying insulations. Failure of the government to inform workers and others who may be exposed to this hazard is incorrigible. This is a well-known, aggressive carcinogen and unless people know about it, it’s a prescription for death.” Shufro adds, “I am amazed and appalled that nothing has happened.”

Saturday, November 20, 2010

History of Asbestos

Asbestos has been used for more than 2,000 years. It was named by the Ancient Greeks, its name meaning "inextinguishable". The Greeks also noted its harmful biological effects. Even though the Greek geographer Strabo and the Roman naturalist Pliny the Elder both observed the "sickness of the lungs" in the slaves that wove asbestos into cloth, they were in such awe of asbestos' seemingly magical properties that they ignored the symptoms.

The Greeks used asbestos for the wicks of the eternal flames of the vestal virgins, as the funeral dress for the cremation of kings, and as napkins. It is rumored that Romans would clean asbestos napkins by throwing them in the fire. The asbestos cloth would come out of the fire whiter than it went in, so the Romans named asbestos "amiantus", meaning "unpolluted".

Use of asbestos declined during the Middle Ages, yet some say that Charlemagne had asbestos tablecloths. Marco Polo was also shown items made from asbestos cloth on his travels.

Asbestos use was brought back in the 1700s, but did not become popular until the Industrial Revolution during the late 1800s. It then began to be used as insulation for steam pipes, turbines, boilers, kilns, ovens, and other high-temperature products. Ancient observations of the health risks of asbestos were either forgotten or ignored.

At the turn of the twentieth century, researchers began to notice a large number of deaths and lung problems in asbestos mining towns. In 1917 and 1918, it was observed by several studies in the United States that asbestos workers were dying unnaturally young.

The first diagnosis of asbestosis was made in 1924. A woman had been working with asbestos since she was thirteen. She died when she was thirty-three years old, and an English doctor determined that the cause of death was what he called "asbestosis". Because of this, a study was done on asbestos workers in England. Twenty-five percent of them showed evidence of asbestos-related lung disease. Laws were passed in 1931 to increase ventilation and to make asbestosis an excusable work-related disease. It would take the United States ten more years to make these steps.

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