The SNORD13P3 gene (small nucleolar RNA, C/D box 13 pseudogene 3) is a member of the snoRNA (small nucleolar RNA) family, which play important roles in the modification of ribosomal RNA (rRNA) and in the regulation of gene expression.

### 1. Associated Genes:
As a pseudogene, SNORD13P3 does not typically encode a functional protein, and its associations are less direct than those of protein-coding genes. Nonetheless, it may have functional overlaps or regulatory interactions with other genes in the snoRNA family or within the broader network of non-coding RNAs. Specific genes that may be co-expressed or associated with SNORD13P3 are primarily those involved in RNA processing and modification, including:

- SNORD13 (small nucleolar RNA, C/D box 13)
- Other snoRNA genes
- Genes involved with ribosome biogenesis and rRNA modification

### 2. Aging or Age-Related Diseases:
Though specific studies focusing exclusively on SNORD13P3 are limited, small nucleolar RNAs have been implicated in various cellular processes that are relevant to aging and age-related diseases:

- Dysregulation of snoRNAs can affect the biogenesis of rRNA and, by extension, protein synthesis, which may contribute to age-related declines in cellular function.
- Alterations in snoRNA levels have been associated with age-related diseases such as cancer, neurodegenerative disorders, and cardiovascular diseases.

### 3. Drug Interactions:
As of my last update in October 2023, there are no specific drugs or drug classes directly associated with the SNORD13P3 gene due to its classification as a pseudogene and the limited functional annotation available. However, it’s worth noting that compounds that target general pathways involving snoRNAs or RNA processing machinery may indirectly affect the expression or function of SNORD13P3 along with other related genes.

### 4. Pathways and Biological Processes:
The SNORD13P3 gene is involved in a number of biological processes associated with small nucleolar RNAs, including:

- **Ribosome biogenesis**: Pertaining to the synthesis and assembly of ribosomal RNA.
- **RNA methylation**: Small nucleolar RNAs are known to guide modifications of rRNA, such as methylation and pseudouridylation, which are essential for ribosome function.
- **Regulation of gene expression**: Many snoRNAs serve as regulators of mRNA stability and localization, potentially influencing expression profiles of nearby genes.

Due to its classification as a pseudogene, detailed functional annotations and research on SNORD13P3 specifically may not be as comprehensive as for other genes. Further investigations into its roles in aging, disease processes, or association with specific gene regulatory networks would likely require more targeted studies.