1
|
Coppens R, Rabinovich NE, Kanneganti R, Diggs HA, Wiggs K, Healey T, Huggenvik J, Rose GM, Gilbert DG. APOE genotype influences P3b amplitude and response to smoking abstinence in young adults. Psychopharmacology (Berl) 2021; 238:1171-1181. [PMID: 33506304 DOI: 10.1007/s00213-021-05763-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 01/12/2021] [Indexed: 11/27/2022]
Abstract
RATIONALE There is strong evidence that nicotine can enhance cognitive functions and growing evidence that this effect may be larger in young healthy APOE ε4 carriers. However, the moderating effects of the APOE ε4 allele on cognitive impairments caused by nicotine deprivation in chronic smokers have not yet been studied with brain indices. OBJECTIVE We sought to determine whether young female carriers of the APOE ε4 allele, relative to noncarriers, would exhibit larger abstinence-induced decreases in P3b amplitude during a two-stimulus auditory oddball task. METHODS We compared parietal P3bs in female chronic smokers with either APOE ε3/ε3 (n = 54) or ε3/ε4 (n = 20) genotype under nicotine-sated conditions and after 12-17-h nicotine deprivation. RESULTS Nicotine deprivation significantly reduced P3b amplitudes in APOE ε4 carriers, but not in APOE-ε3/ε3 individuals, such that the difference seen prior to nicotine deprivation was eliminated. CONCLUSIONS The results suggest that subjects with the APOE ε4 allele are more sensitive to nicotine, which could influence smoking patterns, the risk for nicotine dependence, and the cognitive effects of nicotine use in these individuals.
Collapse
Affiliation(s)
- Ryan Coppens
- Department of Psychology, Southern Illinois University, Carbondale, IL, USA
- Center for Integrated Research in Cognitive & Neural Sciences, Southern Illinois University, Carbondale, IL, USA
| | - Norka E Rabinovich
- Department of Psychology, Southern Illinois University, Carbondale, IL, USA
| | | | - Herman A Diggs
- Department of Psychology, Southern Illinois University, Carbondale, IL, USA
- Center for Integrated Research in Cognitive & Neural Sciences, Southern Illinois University, Carbondale, IL, USA
| | - Kristin Wiggs
- Department of Psychology, Southern Illinois University, Carbondale, IL, USA
| | - Travis Healey
- Department of Physiology, Southern Illinois University School of Medicine, Springfield, IL, USA
| | - Jodi Huggenvik
- Department of Physiology, Southern Illinois University School of Medicine, Springfield, IL, USA
| | - Gregory M Rose
- Center for Integrated Research in Cognitive & Neural Sciences, Southern Illinois University, Carbondale, IL, USA
- Department of Physiology, Southern Illinois University School of Medicine, Springfield, IL, USA
- Department of Anatomy, Southern Illinois University School of Medicine, Springfield, IL, USA
| | - David G Gilbert
- Department of Psychology, Southern Illinois University, Carbondale, IL, USA.
- Center for Integrated Research in Cognitive & Neural Sciences, Southern Illinois University, Carbondale, IL, USA.
- School of Psychological and Behavioral Sciences, Southern Illinois University, Mail Code 6502, Carbondale, IL, 62901, USA.
| |
Collapse
|
2
|
Haab L, Lehser C, Corona-Strauss FI, Bernarding C, Seidler H, Hannemann R, Strauss DJ. Implementation and Long-Term Evaluation of a Hearing Aid Supported Tinnitus Treatment Using Notched Environmental Sounds. IEEE JOURNAL OF TRANSLATIONAL ENGINEERING IN HEALTH AND MEDICINE-JTEHM 2019; 7:1600109. [PMID: 31037231 PMCID: PMC6483592 DOI: 10.1109/jtehm.2019.2897570] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 11/21/2018] [Accepted: 12/06/2018] [Indexed: 11/20/2022]
Abstract
Recent work has shown that sharp spectral edges in acoustic stimuli might have advantageous effects in the treatment of tonal tinnitus. In the course of this paper, we evaluate the long-term effects of spectrally notched hearing aids on the subjective tinnitus distress. By merging recent experimental work with a computational tinnitus model, we modified the commercially available behind-the-ear hearing aids so that a frequency band of 0.5 octaves, centered on the patient’s individual tinnitus frequency, was blocked out. Those hearing aids employ a steep notch filter that filters environmental sounds to suppress the tinnitus-related changes in neural firing by lateral inhibition. The computational model reveals a renormalization of pathologically increased neural response reliability and synchrony in response to spectrally modified input. The target group, fitted with spectrally notched hearing aids, was matched with a comparable control group, fitted with standard hearing aids of the same type but without a notch filter. We analyze the subjective self-assessment by tinnitus questionnaires, and we monitor the objective distress correlates in auditory evoked response phase data. Both, subjective and objective results show a noticeable trend of a larger therapeutic benefit for notched hearing correction.
Collapse
Affiliation(s)
- Lars Haab
- Systems Neuroscience and Neurotechnology UnitSaarland University Hospital, University of Applied Sciences66117HomburgGermany
| | - Caroline Lehser
- Systems Neuroscience and Neurotechnology UnitSaarland University Hospital, University of Applied Sciences66117HomburgGermany
| | - Farah I Corona-Strauss
- Systems Neuroscience and Neurotechnology UnitSaarland University Hospital, University of Applied Sciences66117HomburgGermany.,Key Numerics Medical Engineering GmbH66129SaarbrückenGermany
| | - Corinna Bernarding
- Systems Neuroscience and Neurotechnology UnitSaarland University Hospital, University of Applied Sciences66117HomburgGermany.,Key Numerics Medical Engineering GmbH66129SaarbrückenGermany
| | - Harald Seidler
- Ear, Nose and Throat Center, MediClin Bosenberg KlinikenMediClin AG66606Sankt WendelGermany
| | | | - Daniel J Strauss
- Systems Neuroscience and Neurotechnology UnitSaarland University Hospital, University of Applied Sciences66117HomburgGermany.,Key Numerics Medical Engineering GmbH66129SaarbrückenGermany.,INM Leibniz Institute for New Materials66123SaarbrückenGermany
| |
Collapse
|