The **MFSD4A** gene, also known as **Major Facilitator Superfamily Domain Containing 4A**, is indeed predicted to have a role in glucose transmembrane transport. Here’s a detailed overview based on the provided information and additional relevant insights.

### 1. Associated Genes:
While specific gene interaction networks or associations are not explicitly detailed in the provided summaries, **MFSD4A** is part of the major facilitator superfamily. This suggests potential functional partnerships with other transporter genes, such as:
- **GLUT1 (SLC2A1)**: A well-known glucose transporter.
- **SLC2A family members**: Including SLC2A3, SLC2A4, which are involved in glucose transport.
- **SLC22A family members**: Transporters that can function in substrate modulation alongside glucose transport.

### 2. Aging and Age-related Diseases:
While specific studies linking **MFSD4A** directly to aging or age-related diseases are limited, genes involved in glucose transport can have implications in metabolic disorders, diabetes, and aging. Glucose homeostasis is a critical factor in aging, and dysfunction in glucose transport can contribute to complications such as:
- **Type 2 diabetes**: Characterized by insulin resistance and altered glucose transport mechanisms.
- **Age-related cognitive decline**: Impaired glucose transport in the brain has been associated with neurodegenerative conditions, such as Alzheimer’s disease.

Further research is required to elucidate MFSD4A’s specific role in these contexts.

### 3. Drug Interactions:
As of the last update in October 2023, there have been limited reports of specific drugs that directly interact with **MFSD4A**. However, given its function as a glucose transporter, drugs that modulate glucose levels or enhance insulin sensitivity, such as:
- **Metformin**: Commonly used in the treatment of type 2 diabetes.
- **SGLT2 inhibitors (e.g., Canagliflozin, Dapagliflozin)**: They affect glucose reabsorption but could indirectly relate to glucose transporters.

### 4. Pathways and Biological Processes:
**MFSD4A** is predominantly involved in:
- **Glucose transmembrane transport**: Essential for glucose uptake into cells.
- **Biological processes related to metabolism**: Enabling cellular respiration and energy production.
- **Regulatory pathways**: It may be implicated in insulin signaling and glucose regulation pathways.

Furthermore, the gene’s role in diverse cellular processes within the major facilitator superfamily indicates that it could play a part in broader transport mechanisms involving other substrates.

In conclusion, while **MFSD4A** is recognized primarily for its role as a glucose transporter, ongoing research may provide deeper insights into its regulatory functions, potential associations with diseases, and interactions with therapeutics.