In plain language
Among 56 hospital workers exposed to low-dose radiation in cardiology, radiology and orthopedic labs in Tamil Nadu, chromosomal aberrations and micronuclei were higher than in 56 matched controls, most in cardiology lab staff. These are biomarker associations, not proven health effects.
At a glance
- Type of study
- Original research, Laboratory or biomarker study
- Who was studied
- Mixed lab staff, General population
- Size
- n = 112 subjects (56 exposed, 56 controls)
- Where
- India
- Topics
- DNA and cellular effects
- Summary based on
- the abstract
What it found
Exposed hospital workers had higher chromosomal aberration and micronucleus frequencies than controls, with cardiology laboratory workers highest.
Key figures: p<0.05
Cardiology laboratory workers showed greater DNA damage on Comet assay than radiology and orthopedic laboratory workers.
Work duration and age were statistically significant factors in multiple linear regression analysis.
GSTM1 and GSTT1 null genotype frequencies were reported; no significant difference in allele frequencies between exposed and controls was stated, though the reported p-value appears inconsistent.
Key figures: 39.3 percent and 14.3 percent; p=0.0128
Limits to keep in mind
Small cross-sectional biomarker comparison of exposed workers with matched controls from one Indian state, with no individual dose data reported in the abstract; cytogenetic markers are not health outcomes and confounding was only partly addressed.
Related research summaries
- Assessment of Chromosomal Aberrations and Micronuclei in Peripheral Lymphocytes from Tunisian Hospital Workers Exposed to Ionizing Radiation (2012, Laboratory or biomarker study)
- Occupational Protection in Interventional Radiology. A Joint Guideline of the Cardiovascular and Interventional Radiological Society of Europe and the Society of Interventional Radiology (2026, Guideline or consensus statement)
- Intersections of Ergonomics and Radiation Safety in Interventional Radiology (2025, Narrative review)
- Occupational Radiation Exposure and Thyroid Nodules in Healthcare Workers: A Review (2025, Narrative review)
- Radiation exposure in interventional cardiology: a narrative review of health effects and novel approaches to ensure radiation safety (2025, Narrative review)
How this summary was made
ORSIF prepared this summary with AI assistance from the abstract of the paper. A program then checked that the passage supporting each finding appears word for word in that source. A person has not yet reviewed each summary, so read the original before relying on a number. ORSIF summarizes research and does not endorse any product or company. Report a problem with this summary.
Prepared November 3, 2026.