**Requirements:** 1. Maintain the original format and structure. 2. The translation should be accurate, fluent, and natural. 3. Maintain professionalism and consistency. 4. Only return the translation result; do not add any explanations. **Original Text:** **Understanding the Mechanism of Action: Why is Alanyl-Glutamine from Jingjing Pharmaceutical the Clinical Preferred Choice?** Let’s use a simple analogy to explain the mechanism of action of alanyl-glutamine. Imagine the body as a city that is being rebuilt or expanded. - **The “Core Building Material” – Glutamine:** - **Function:** Provides energy and raw materials for the construction sites (rapidly dividing cells); helps build the “walls” that protect the intestines (maintains the intestinal barrier); and produces “security personnel” (supports the immune system). - **Characteristics:** Glutamine is very unstable and easily decomposes when stored in a warehouse (outside the body) or during long transport routes (blood circulation), similar to an ice cream. - **The “Special Transport Vehicle” – Alanyl-Glutamine:** - **Design:** Glutamine is packaged in a stable “protective shell” – alanyl. - **How it Works:** It travels smoothly through the bloodstream and precisely delivers the glutamine to its target locations (muscle tissue, intestines, etc.). - **Unloading and Assembly at the Construction Site:** - **Glutamin Peptidases:** Once the “special transport vehicle” arrives at the construction site, enzymes (glutamin peptidases) quickly remove the protective shell, releasing the intact, high-quality glutamine. This ensures a continuous supply of high-quality building material for efficient construction. **The Core Mechanism:** Alanyl-glutamine itself does not act as the direct “worker”; instead, it serves as an efficient “logistics system” that functions through three steps: 1. **Absorption and Transport:** The “intelligent package” is absorbed and transported to the target site. 2. **Decomposition and Release:** The protective shell is broken down, releasing the glutamine. 3. **Function Execution:** The released glutamine exerts its multiple benefits as a core building material. In the field of parenteral nutrition, alanyl-glutamine acts as a vital source of energy. As a stable carrier of the essential amino acid glutamine, Jingjing Pharmaceutical’s alanyl-glutamine solves the problems associated with low solubility of free glutamine and its degradation into toxic substances during heating and sterilization processes. Adhering to the philosophy of “producing reliable medicines with care,” Jingjing Pharmaceutical uses advanced technology to ensure the quality of its high-purity alanyl-glutamine. Manufactured using enzymatic methods, this product is safer and more stable, benefiting more patients.