Original title: Neurobiology of Pet Loss Grief: A Review from a One Health Perspective
This review brings together research on the brain, hormones, immunity, and social life to suggest how losing an animal might cause grief. It considers six body systems, but treats these ideas as hypotheses, not established facts. The review judges the stress-control system, considered alongside the bonding hormone oxytocin, as the best first target for a direct biomarkerA measurable sign in the body that may give information about a condition or process. study. No direct evidence from pet-loss studies yet supports any of the biological proposals.
Imagine a house where several systems help people feel safe and connected. When someone important is gone, it is hard to know which system changes most, and a clue from another kind of loss may not prove what happens here. In this paper, the house systems stand for body pathways linked to bonding and stress, and the review picks the stress system alongside the bonding system as the best place to begin testing. The review also stresses that this is a proposed starting point, not a result already shown in people grieving a pet.
People grieving a companion animal may face intense distress, yet researchers lack direct evidence about its biology. This review suggests which biological system to test first, while also addressing guilt, social recognition of grief, and support tools.
The review offers hypotheses drawn from evidence that does not directly establish what happens biologically after pet loss. It does not show that any proposed pathway causes grief or validate a biomarker for it. Its suggested first target prioritizes future research; it is not a confirmed test or treatment.
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Neurobiology of Pet Loss Grief: A Review from a One Health Perspective — Thanh Huu Phan Ngo, Jiwon Oh, Hyeong Jun Kim et al. — Animals — doi:10.3390/ani16193129
Abstract licence: CC BY
Explanation generated by Synthesis from the abstract — it is not the original paper.