Chromosome aberrations in peripheral blood lymphocytes from control individuals

Chromosome Aberrations in Peripheral Blood Lymphocytes of Croatian Hospital Staff Occupationally Exposed to Low Levels of Ionising RadiationMedical staff is an occupational group exposed to different agents suspected to induce genetic damage. Among them ionising radiation is the most studied. Cytogenetic analysis of human chromosomes in peripheral lymphocytes allows direct detection of mutation in somatic cells. This study investigated the cytogenetic effects of low-level ionising x-radiation in 48-hour peripheral blood lymphocyte cultures sampled from 765 hospital staff occupationally exposed to several agents known or suspected to induce chromosome damage and compared them with 200 control subjects. The exposed subjects were divided in eight (8) groups according to their specialities and job titles. The exposed groups manifested an increase in all types of chromosome aberrations. Acentric fragments were the most frequent chromosome-type aberration. Dicentric chromosomes were statistically significant only in urologists/gynaecologists. Age and smoking significantly influenced the incidence of dicentrics in the exposed groups. The frequency of ring chromosomes was low in all exposed groups (range: 0-2), and none were found in the control group. These findings indicate the importance of periodic medical checkups of hospital staff occupationally exposed to low doses of ionising radiation. The purpose is to create an individual cytogenetic register, where changes could evidence individual risks.

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Assessment of Potential Clastogenic Effect of the Insecticide Mospilan® 20SP in Human Peripheral Blood Lymphocytes After in Vitro Exposure

Folia Veterinaria ◽

10.2478/fv-2019-0014 ◽

2019 ◽

Vol 63 (2) ◽

pp. 21-24

Author(s):

K. Ničová ◽

V. Schwarzbacherová ◽

M. Galdíková ◽

B. Holečková

Keyword(s):

Peripheral Blood ◽

Chromosome Aberrations ◽

Human Peripheral Blood ◽

Peripheral Blood Lymphocytes ◽

Blood Lymphocytes ◽

Human Peripheral Blood Lymphocytes ◽

Neonicotinoid Insecticide ◽

Clastogenic Effect ◽

Chromosome Aberration Test

Abstract Acetamiprid, that is known as the commercial formulation Mospilan® 20SP is the part of the neonicotinoid insecticide group and is widely used against various pests. In our study we assessed the potential clastogenic effects of Mospilan® in human peripheral blood lymphocytes in vitro using a chromosome aberration test. The lymphocytes were treated with acetamiprid in the concentration range of 5, 10, 25 and 50 µg.ml−1 for 24 and 48 h. After 24 h exposure, the insecticide induced statistically significant higher levels of chromosome aberrations from the concentration of 10 µg.ml−1 (P < 0.05 and P < 0.001) and a significant decrease in mitotic index (MI) at the concentrations of 25 and 50 µg.ml−1 (P < 0.05 and P < 0.01), respectively. After a 48 h exposure, we found a dose dependent increase in the percentage of chromosome aberrations at all concentrations (P < 0.05; P < 0.01 and P < 0.001) and a decrease in MI at concentrations of 25 and 50 µg.ml−1 (P < 0.05 and P < 0.01). Our results indicated that neonicotinoid insecticide formulations containing acetamiprid may have potential cytotoxic and genotoxic effects.

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