Workshop (In-Person)

Effects of Ionising Exposure in Offspring and Next Generations


31 May - 2 June 2022  |  Budapest, Hungary

This workshop was jointly organised by Task Group 121 of the International Commission on Radiological Protection (ICRP), the Multidisciplinary European Low Dose Initiative (MELODI) and the European Radioecology Alliance (ALLIANCE). This event took place in parallel with the 6th European IRPA Congress.

 

The potential for radiation-related deleterious effects in offspring is a recurrent concern for the general public and a major one for (potential) parents exposed to ionising radiation from occupational, medical or environmental sources. There is a lack of knowledge (and subsequent uncertainties in risk estimates) about the fundamental mechanisms underlying potential radiation-induced genetic diseases, the contribution of epigenetic processes to adverse outcomes if any, and the potential contributory role of lifestyle, physiological, and maternal vs paternal factors. This uncertainty is reinforced by the limited human epidemiological evidence and the number of studies at variance either in the laboratory and/or in the field on various fauna and flora species, and between human and non-human species. To provide advice about the level of evidence and consideration of these effects in the system of radiological protection for human and non-human biota, a Task Group of Committee 1 of the ICRP was recently established. In close cooperation with stakeholders, the Task Group 121 will review published literature and consider both preconceptional and postconceptional effects of radiation, addressing genetic and epigenetic effects as well as effects due to the exposure of the embryo and fetus, respectively.

To launch the evaluation on the effects of ionising radiation exposure in offspring and next generations, a workshop was organized together with the broader scientific community, bringing together key experts worldwide in order to compile current knowledge, discuss key issues, identify research needs and to generate in-depth understanding on the topic. The workshop began by defining the scope and objectives of the workshop and of TG 121. It also included a joint session with the IRPA Congress providing an overview on the state-of-the art of the topic to professionals in radiological protection, plenary talks reviewing the main scientific progresses, and breakout group sessions for more detailed discussions. Recordings of this workshop include all presentations and breakout group discussions, with the exception of the joint IRPA-ICRP session. Some presenters from the IRPA-ICRP session have provided their slides below as an additional resource. 

 

Recordings 

 

Breakout Groups 

Group A: Hereditary and Epigenetic Effects due to Exposure of Germ Cell Line (Pre-Conceptional Exposure)
Group B: Effects Arising From Exposure of the Embryo and Fetus (Post-Conceptional Exposure)
Group C: Transgenerational Effects in Biota
Group D: Potential Impact on the System of Radiological Protection

 

Additional Resources 

 


Day 1 Presentations 

 

 
Why Genetic Effects of Radiation Are Observed in Mice but Not in Humans?
Nori Nakamura
 
Epigenetic Mechanisms and Cancer Risk in Future Generations
Zdenko Herceg
 
Factors Influencing Radiation Effects: Pre- and Post-Conceptional Exposures
Manoor Prakash Hande
 
Consequences Which Mother's Irradiation Has: Risks of Children's Congenital Malformations
Svetlana Sosnina
 
The Advantages and Limitations of RERF Data for the Analysis of Radiation Effects on Offspring and Next Generations
Eric Grant

 

Group A: Hereditary and Epigenetic Effects due to Exposure of Germ Cell Line (Pre-Conceptional Exposure)
 
Fundamental Biology of Male and Female Gametogenesis; Highlighting Periods That Are Sensitive for Radiation Effects
Sisko Salomaa
 
Assessment of Gonadal Doses Within the US-Ukraine TRIO Study
Vadim Chumak

 

Group B: Effects Arising From Exposure of the Embryo and Fetus (Post-Conceptional Exposure)
 
Relationship Between Thyroid Hormone Levels, Radiation Dose and IQ in Children Exposed in Utero by the Chernobyl Accident and Controls
Ludmila Liutsko
 
Fetal Development and Irradiation: A Quick Look Relevant for Multigenerational and Transgenerational Effects Studies
Stéphane Grison
 
Radiation Exposure During Brain Development & Long Lasting Persistent EffectsRadiation Exposure During Brain Development & Long Lasting Persistent Effects
Mohammed Abderrafi Benotmane
 
Impact of Radiation Induced Cell Death on Mutation Induction
Balázs Madas
 
Group C: Transgenerational Effects in Biota
 
Importance of Multigenerational Studies for Ecological Risk Assessment of Ionizing Radiation: Invertebrate Case Studies After Chronic Gamma Exposure
Sandrine Frelon
 
The Effect on Dna Methylation Changes in Arabidopsis Thaliana Plants as a Result of Exposure to Gamma Radiation Over Multiple Generations
Paulus Laanen
 
Group D: Potential Impact on the System of Radiological Protection
 
How Heritable Effects Were Quantified in ICRP Publication 103
Aidana Amrenova

 

Day 2 Presentations 

 
Group A: Hereditary and Epigenetic Effects due to Exposure of Germ Cell Line (Pre-Conceptional Exposure)
 
Genetic and Cytogenetic Family Trio Study
Rhona Anderson
 
Group B: Effects Arising From Exposure of the Embryo and Fetus (Post-Conceptional Exposure)
 
The Effects of In Utero Radiation Exposure on Human Embryonal Development
Klaus Trott

 

Group C: Transgenerational Effects in Biota
 
Epigenetics and Inheritance of Acquired Characteristics: Implications for Evolution Theory
Sisko Salomaa

 

Group D: Potential Impact on the System of Radiological Protection
 
Addressing Heritable Effects in the Implementation of the System of Radiological Protection: Preliminary Reflections
Thierry Schneider
 
Ethical Aspects of Radiological Protection for Offspring and Next Generations
Friedo Zölzer

 

Day 3 Presentations