Neurovascular coupling is altered in women who have a history of brain injury from intimate partner violence: a preliminary study
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View abstract on PubMed
Summary
This summary is machine-generated.Women with a history of intimate partner violence-brain injury (IPV-BI) show altered neurovascular coupling (NVC). These changes in cerebral blood flow are linked to injury severity and modulated by depression and anxiety.
Area Of Science
- Neuroscience
- Public Health
- Vascular Biology
Background
- Intimate partner violence (IPV) is a global health crisis affecting millions.
- Brain injury (BI) from head impacts or strangulation is a common consequence of IPV.
- Previous research indicates BI can disrupt neurovascular coupling (NVC), but this is understudied in IPV survivors.
Purpose Of The Study
- To investigate neurovascular coupling (NVC) responses in women with a history of intimate partner violence-brain injury (IPV-BI).
- To determine if IPV-BI causes changes in NVC similar to other injury mechanisms.
- To explore the influence of psychological factors like PTSD, anxiety, and depression on NVC in this population.
Main Methods
- NVC was measured using transcranial Doppler ultrasound in the middle and posterior cerebral arteries (MCA, PCA).
- Participants performed a visual search task during NVC measurements.
- IPV-BI history was assessed using the Brain Injury Severity Assessment (BISA); PTSD, anxiety, and depression were also measured.
Main Results
- Women with higher BISA scores showed altered NVC in the PCA, with higher baseline and peak velocities but a lower percentage increase.
- Participants who experienced strangulation had reduced PCA NVC (lower initial slope and area under the curve).
- NVC alterations in the PCA were significantly related to BISA scores, depression, and anxiety.
Conclusions
- A history of IPV-BI causes subtle but significant disruptions in NVC.
- Comorbid depression and anxiety modulate these NVC responses.
- Future research should examine cerebrovascular function in acute/subacute stages post-IPV.
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