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Gene & Protein in Disease                                          Dopaminergic dysfunction as pre-addiction






































            Figure 6. The first sub-genomic intelligence (SuGIN) between reward deficiency syndrome (RDS) as the central pre-addiction phenotype and other
            pathways as endo-phenotypes. Nature refers to all outer stimuli influencing human cellular and molecular interactions. The human genome may prioritize
            key chromosomes—here, we focus on the X and Y chromosomes—which, in turn, could influence autosomal chromosomes and numerous loci and genes.
            Within this framework, eight endo-phenotypes are each strongly supported by evidence linking them to RDS at the core. The Genetic Addiction Risk
            Severity test, developed by Blum et al.,  includes alleles from 10 genes. In the figure, arrows represent molecular interactions, while lines refer to the genes
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            of the illustrated endo-phenotype(s). “Chr.” denotes chromosome, and stars highlight the endo-phenotypes. Additionally, X and Y refer to the respective
            sex chromosomes. 51,52,57,58,75-77
            and its broader impact on neuroplasticity and cellular   imply beneficial effects of the secretome in terms of drug
            responses to pain and opioid exposure.  Key insights from   dependence and self-administration.
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            this work include:                                   Finally, we developed a schematic (Figure  6) of our
            (i)  CeO serves as a potent tool for probing central pain   overall genomic-based support for RDS as the central
               mechanisms
            (ii)  The  secretome  can  engage  the  opioid  receptors   pre-addiction phenotype and other pathways as endo-
               typically affected by opioid drugs              phenotypes, highlighting the importance of GARS
            (iii) Treatment with buprenorphine followed by secretome   testing.
               leads to increased apoptosis compared to morphine   5. Conclusion
               treatment
            (iv)  Both buprenorphine and secretome contribute to the   If validated, these findings suggest that the true phenotype
               enhanced maturation of glial cells              is pre-addiction, characterized primarily by dopaminergic
            (v)  While opioids induced a marked acute elevation in   dysregulation, while aging represents an endo-phenotype.
               DA release, the secretome does not significantly alter   Our analyses support the idea that the GARS test and an
               DA levels compared to the control               updated gene list along the pain-aging axis can identify
            (vi) Following a five-day treatment with either secretome   individuals who have risk alleles and are predisposed to
               or opioids, there were no notable differences in   addiction. Clinically, these insights can guide physicians,
               synaptic markers.                               surgeons, and other clinical experts to prescribe the
              Therefore, secretome may be an alternative to opioids   precise drug(s) for pain relief with decreased risk of
            in pain management. It appears to act on opioid receptors   causing age-related phenotypes, including Alzheimer’s
            but  does  not affect  DA release,  unlike  morphine  or   and Parkinson’s disease. Furthermore, early identification
            buprenorphine. This lack of impact on DA systems could   of at-risk individuals through GARS testing could enable



            Volume 4 Issue 3 (2025)                         8                               doi: 10.36922/gpd.8090
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