Liver Disorders

Author(s):  
Barry S. Levy

This chapter describes occupational and environmental liver disorders. It describes the types of liver function and types of liver damage, and how these functions and this damage can be assessed. Workers in healthcare and solid waste management are at increased risk hepatitis B virus and hepatitis C virus infections. Occupational exposure to swine is associated with hepatitis E virus infection. More than 100 industrial chemicals can be acutely hepatotoxic in experimental animals or humans. Metabolic reactions may affect the hepatotoxicity of chemicals. Occupational exposure to organic solvents can cause toxic hepatitis. Occupational exposure to vinyl chloride monomer has been causally associated with toxicant-associated fatty liver disease as well as a form of non-cirrhotic portal hypertension. Several agents can cause cancer of the liver or bile ducts. Vinyl chloride monomer is causally associated with angiosacoma of the liver. Arsenic causes liver cancer. Dietary exposure to aflatoxins can cause hepatoceulluar carcinoma.

2000 ◽  
Vol 108 (8) ◽  
pp. 793-795 ◽  
Author(s):  
I Hozo ◽  
D Miric ◽  
L Bojic ◽  
L Giunio ◽  
I Lusic ◽  
...  

BMJ Open ◽  
2013 ◽  
Vol 3 (6) ◽  
pp. e002785 ◽  
Author(s):  
Vincent Lopez ◽  
Alain Chamoux ◽  
Marion Tempier ◽  
Hélène Thiel ◽  
Sylvie Ughetto ◽  
...  

2016 ◽  
Vol 32 (12) ◽  
pp. 1921-1926
Author(s):  
Mansour Rezazadeh Azari ◽  
Raana Tayefeh-Rahimian ◽  
Mohamad Javad Jafari ◽  
Hamid Souri ◽  
Yasser Shokoohi ◽  
...  

Vinyl chloride monomer (VCM) is widely used in the production of polyvinyl chloride (PVC) plastics. VCM is recognized as a confirmed human and animal carcinogenic compound. Recent studies have reported poor health of plastic workers, even having exposure at concentrations below the permissible limit to VCM. There has not been any study regarding exposed workers to VCM in Iran. Similarly, no information exists as to the biological monitoring of such workers. The main purpose of this study was to conduct a thorough occupational and biological monitoring of Iranian plastic workers exposed to VCM. A total of 100 workers from two plastic manufacturing plants (A and B) in Tehran along with 25 unexposed workers as controls were studied. The personal monitoring of all nonsmoking workers exposed to VCM at two plastic manufacturing plants (A and B) was performed in the morning shift (8 a.m. to 4 p.m.) according to the National Institute For Occupational Safety And Health method no. 1007. Biological monitoring of workers was carried out through collection of exhaled breath of all exposed and control workers in Tedlar bags and with a subsequent analysis using gas chromatography–flame ionization detector. Not only the mean occupational exposure of workers to VCM at plant A was higher than the respective threshold limit value but also the statistical significance was higher than workers at plant B. Similarly, VCM concentration in exhaled breath of workers at plant A was also statistically significantly higher than at plant B. Correlation of occupational exposure of all workers to vinyl chloride with its concentration in exhaled breath was statistically significant. This is the first study on biological monitoring for exposed plastic workers to VCM using exhaled breath. On the basis of the results in this study, a novel method of biological monitoring of plastic workers was proposed.


1998 ◽  
Vol 61 (5) ◽  
pp. 583-590
Author(s):  
A. Fu &#41 i &#39 ◽  
Z. &#120 pacir ◽  
D. Barkovi &#39 ◽  
A. Jazbec ◽  
A. Miji &#39 ◽  
...  

1994 ◽  
Vol 325 (2-3) ◽  
pp. 53-56 ◽  
Author(s):  
Aleksandra Fučić ◽  
Verica Garaj-Vrhovac ◽  
Danica Barković ◽  
Dragan Kubelka

2017 ◽  
Vol 145 (16) ◽  
pp. 3375-3384 ◽  
Author(s):  
L. MUGHINI-GRAS ◽  
G. ANGELONI ◽  
C. SALATA ◽  
N. VONESCH ◽  
W. D'AMICO ◽  
...  

SUMMARYWe determined the hepatitis E virus (HEV) seroprevalence and detection rate in commercial swine herds in Italy's utmost pig-rich area, and assessed HEV seropositivity risk in humans as a function of occupational exposure to pigs, diet, foreign travel, medical history and hunting activities. During 2011–2014, 2700 sera from 300 swine herds were tested for anti-HEV IgG. HEV RNA was searched in 959 faecal pools from HEV-seropositive herds and in liver/bile/muscle samples from 179 pigs from HEV-positive herds. A cohort study of HEV seropositivity in swine workers (n = 149) was also performed using two comparison groups of people unexposed to swine: omnivores (n = 121) and vegetarians/vegans (n = 115). Herd-level seroprevalence was 75·6% and was highest in farrow-to-feeder herds (81·6%). Twenty-six out of 105 (24·8%) herds had HEV-positive faecal samples (25 HEV-3, one HEV-4). Only one bile sample tested positive. HEV seropositivity was 12·3% in swine workers, 0·9% in omnivores and 3·0% in vegetarians/vegans. Factors significantly associated with HEV seropositivity were occupational exposure to pigs, travel to Africa and increased swine workers’ age. We concluded that HEV is widespread in Italian swine herds and HEV-4 circulation is alarming given its pathogenicity, with those occupationally exposed to pigs being at increased risk of HEV seropositivity.


1976 ◽  
Vol 33 (3) ◽  
pp. 152-157 ◽  
Author(s):  
D M Williams ◽  
P M Smith ◽  
K J Taylor ◽  
I R Crossley ◽  
B W Duck

Epidemiology ◽  
1996 ◽  
Vol 7 (Supplement) ◽  
pp. S77
Author(s):  
P MOSZCZYNSKI ◽  
P MOSZCZYNSKI ◽  
Z ZABINSKI ◽  
J RUTOWSKI

2004 ◽  
Vol 112 (11) ◽  
pp. 1188-1192 ◽  
Author(s):  
Giuseppe Mastrangelo ◽  
Ugo Fedeli ◽  
Emanuela Fadda ◽  
Flavio Valentini ◽  
Roberto Agnesi ◽  
...  

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