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Zebrafish study to help tackle human aggression
Scientists from the University of Leicester hope to learn how to control human aggression by studying zebrafish.
Scientists from the University of Leicester hope to learn how to control human aggression by studying zebrafish.

Scientists say fish will respond in similar way to drugs as humans

Researchers from the University of Leicester are studying zebrafish as part of an international project to develop treatment for human aggression.

The university's department of biology, will investigate pathological aggression in the fish to understand how genes in the brain function.

They will also use juvenile fish to develop new ways of treating aggression.

Dr Will Norton from the University of Leicester is leading the study.
"We live in an increasingly violent society and we don’t know why.

"Aggression is an extremely complex behaviour which is becoming a big societal problem. There are currently very few drugs available to treat aggression and there are often side-effects for those that exist.

“This is a really ambitious project, but I am hopeful that by looking at the areas of the brain and genes linked to this type of behaviour, we will develop a better understanding of aggression and how it responds to existing treatments.

"We will be using both adult and juvenile zebrafish since they are genetic model organisms which may respond in a similar way to drugs as humans.”

The study forms part of a wider project involving 23 research groups across Europe and the USA.

The five-year EU-funded project will study the biological underpinnings of aggression to develop much-needed treatment strategies.

Dr Norton said: “I’m really excited about the opportunity to collaborate with a wide variety of influential scientists from across the globe as part of this research.

"Not enough is known about aggression and this is an area of interest which definitely needs more focus.

"The end goal for my individual project will be to develop new drugs effective at controlling aggression to increase the treatment options for patients.”

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FIVP launches CMA remedies survey

News Story 1
 FIVP has shared a survey, inviting those working in independent practice to share their views on the CMA's proposed remedies.

The Impact Assessment will help inform the group's response to the CMA, as it prepares to submit further evidence to the Inquiry Group. FIVP will also be attending a hearing in November.

Data will be anonymised and used solely for FIVP's response to the CMA. The survey will close on Friday, 31 October 2025. 

Click here for more...
News Shorts
CMA to host webinar exploring provisional decisions

The Competition and Markets Authority (CMA) is to host a webinar for veterinary professionals to explain the details of its provisional decisions, released on 15 October 2025.

The webinar will take place on Wednesday, 29 October 2025 from 1.00pm to 2.00pm.

Officials will discuss the changes which those in practice may need to make if the provisional remedies go ahead. They will also share what happens next with the investigation.

The CMA will be answering questions from the main parties of the investigation, as well as other questions submitted ahead of the webinar.

Attendees can register here before Wednesday, 29 October at 11am. Questions must be submitted before 10am on 27 October.

A recording of the webinar will be accessible after the event.