Association between ABO blood group status and cochlear/neural function: auditory brainstem response findings.

Area of Science:

• Auditory neuroscience
• Genetics and human physiology
• Otoacoustic emissions and electrophysiology

Background:

• ABO blood group may be a risk factor for hearing loss, particularly after noise exposure.
• Individuals with blood group O show higher hearing loss prevalence and reduced otoacoustic emissions.
• The effect of ABO blood group on auditory brainstem responses (ABR) is not well understood.

Purpose of the Study:

• To investigate the relationship between ABO blood group status and auditory function.
• To compare cochlear and peripheral neural function across ABO blood groups.
• To record cochlear microphonic (CM) and wave I auditory brainstem response (ABR) amplitudes and latencies.

Main Methods:

• Sixty normal-hearing young adults (15 per ABO group) underwent click-stimulus ABR testing.
• Cochlear microphonic (CM) and wave I ABR amplitudes and latencies were measured.
• One-way ANOVA was used to compare results across ABO blood groups.

Main Results:

• A significant difference in wave I amplitudes was observed across ABO blood groups.
• Group O individuals exhibited significantly reduced wave I amplitudes compared to group A.
• Group O showed a trend towards reduced CM amplitudes and prolonged wave I latencies.

Conclusions:

• ABO blood group status may influence auditory function.
• Evidence suggests that blood group O may be associated with altered cochlear and peripheral neural activity.
• Further research is warranted to explore the link between ABO blood groups and hearing health.