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دراسة تاثيرالتعرض السابق لمادة الايثيلين وايضه في بعض المعاييرالفسيولوجية : دراسة تاثيرالتعرض السابق لمادة الايثيلين وايضه في بعض المعاييرالفسيولوجية والوراثية عند العاملين في معمل البتروكيمياويات في محافظة البصرة والوراثية عند العاملين في معمل البتروكيمي == The Study of the effects of previous Ethylene Exposure on Some Physiological and Genetic Parameters in Workers of Petrochemical Plant In Basrah province
Author name:
هبة ثاقب يسر
Supervisor name:
سامي جبر المالكي | فائزة عبد الوهاب احمد
General topic:
Biology
Specific topic:
Life Science
Degree:
Doctorate
University:
University Of Basrah - College Of Education For Pure Sciences
Language:
Arabic
University location:
Basrah
First pages:
24T3580 - p.pdf
Abstract:
The current study was conducted to investigate the genetic and physiological effects of some industrial chemicals on workers of the Petrochemicals Industrial Factory, in Basra Province , as it has been collecting 100 blood samples during the month of January and February of 2011 from each of the exposure in (ethylene section) and the control group of (employees of the University of Basra). and then the samples were divided on the basis of each of the years of occupational exposure to more and less than 15 years , age group to the larger and smaller than 50 years, smoking habits.The results showed that there was a significant decrease in the haemoglobin concentration HB, PCV, RDW and MCV in the more than15 years exposure group in comparison with the control group, while, no significance was detected in the RBC, MCH, MCV ,RDW,MCH and MCHC in less than15 years exposure group . Whereas, a significant decrease in the PCV for the same group was observed.White blood cells parameters’ results showed also variations in their values. In general, WBC did not change significantly in both groups of workers, while, the proportion of the lymphocyte and the of monocyte declined significantly in the more than 15 year of occupational exposure group, in contrast, the proportion of granulated cells increased markedly in the same group. The results of group of less than 15 years exposure revealed that the proportion of monocyte dropped significantly. Conversely, there was a significant increase in the proportion of granulated cells while the proportion of the lymphocyte was not significant . Platelets’ number and average of platelets’ volume decreased significantly in both occupational groupsTurning to the biochemical tests, the results showed significant increase in both liver enzymes ALT ,ASTand bili as well as this increase was found in urea, uric acid and glucose values in both occupational exposure groups. Contrariwise, the ALP creatinine and cholesterol did not reveal significant changes in both groups that in comparison with control group. The total protein decreased significantly in the group of more than 15 year of occupational exposure.Testosterone level revealed a significant decline in both occupational groups, while the Follicle stimulating hormone showed a significant increase in the occupational group of less than 15 year and no difference was observed in another occupational group while LH hormone level was not significant.In case of the genetic effects of the ethylene compounds, DNA was extracted for control and occupational groups and amplification was performed for GSTM1, GSTT1 and Albumin by using PCR technique. The results showed that there was no significant effect of both occupational periods on the GSTM1 gene, while GSTT1 gene was significantly in the workers samples in group more than 15 year of exposure, which was 2.43 times more than the group of less than 15 year of exposure.As regards the impact of exposure to ethylene and loss of genes GSTM1 and GSTT1 showed the results of our study, significant increase in the loss of gene GSTM1 amounted to more than five - fold (5.1) among workers exposed compared to a set of control while the proportion of loss of gene GSTT1 by more than three - fold (3. 1) compared to the group control has been a loss ratio of the two genes together more than eight - fold (8.5) for workers exposed group compared to the control.The light smoke did not reveal a significant effect on the null of GSTM1 and GSTT1 genes that in comparison with the control group, while the study found a significant effect of smoking on gene GSTM1, causing the null of much more than doubled (2.2) times compared with the control group (non - smokers) and the significant effect of smoking on null GSTT1 gene loss as increased visits by the text (1.5) compared with non - smokers also appeared that excessive smoking has an effect on the GSTT1 gene causing loss by seven - fold (7.08) once compared to non - smokers.The effect of the age group (less and more than 50 years old) of the workers on the null of both GSTM1 and GSTT1 was also examined. GSTM1 gene was null six times in both age groups of workers more than the control samples. While the GSTT1 was null in age group less than 50 years old three times more than the control group. As well as this absence was two times in the age group more than 50 years old in comparison with control group.It could be concluded from the present study that the exposure of workers to ethylene and its metabolic impact and clearly on blood standards as well as caused a high level of enzymes AST, ALT and bilirubin and high blood sugar levels and lower total protein and high level of urea and uric acid level as well as the low level of the hormone testosterone as it turns out that occupational exposure to ethylene and metabolic outcomes and length of exposure and smoking for workers exposed role in influencing the genes of detoxification, causing null in each of the gene GSTT1 and GSTM1.
