### RNU1-91P Gene Overview

**Gene Symbol**: RNU1-91P  
**Type**: Pseudogene  
**Location**: Chromosomal location and specific sequence details may vary across resources. It is generally classified within the non-coding RNA regions.

### 1. Associated Genes
The RNU1-91P gene is classified as a small nucleolar RNA (snoRNA) pseudogene. In general, snoRNAs can play roles in rRNA and snRNA modification and processing, often cooperating with other genes and RNA molecules involved in ribosomal assembly and splicing. However, specific genes directly associated with RNU1-91P might not be extensively documented since it is classified as a pseudogene. 

### 2. Aging and Age-Related Diseases
Some studies suggest that snoRNAs can have roles in cellular aging and influence age-related diseases, such as cancer and neurodegenerative disorders, although RNU1-91P itself may not have specific studies linked to it. The expression levels of snoRNAs have been associated with cellular senescence and may affect the overall transcriptomic landscape during aging.

### 3. Drug Interactions
As of the latest data, there are no specific drugs or drug classes directly interacting with RNU1-91P. However, given its nature as a pseudogene and involvement with snoRNAs, it might be indirectly affected by therapies targeting pathways involved in RNA processing, aging, or cancer-related pathways.

### 4. Pathways and Biological Processes
RNU1-91P is associated with several biological processes typically linked to snoRNAs, including:

- **Ribosome Biogenesis**: Although RNU1-91P is a pseudogene, snoRNAs generally facilitate the modification and processing of rRNA, crucial for proper ribosome function and protein synthesis.
- **RNA Modification**: Involvement in the biogenesis of other functional RNA molecules through methylation and pseudouridylation processes.
- **Regulation of Gene Expression**: Potential modulation of expression profiles through interactions with other RNA molecules, contributing to various pathways.

### Summary:
The RNU1-91P gene is a pseudogene related to small nucleolar RNAs that may play a role in processes like ribosome biogenesis and RNA modification. While specific associations with aging, age-related diseases, and drug interactions are limited, it is part of a broader family of genes that could be implicated in cellular processes relevant to these themes. Further functional characterization may elucidate the importance of this pseudogene in health and disease.