Implementation of the First Multi-Organ Xenotransplantation Procedure in a Brain-Dead Human Recipient
在腦死亡受體中首次實施多器官異種移植手術
Introduction
Researchers in China have successfully performed the first simultaneous transplantation of a gene-edited pig liver and two kidneys into a brain-dead patient.
中國研究人員已成功將基因編輯過的豬肝與兩個腎臟，同時移植到一名腦死亡患者體內。
Main Body
The procedure was conducted by a team led by Professor Dou Kefeng, involving the First and Second Affiliated Hospitals of Guangxi Medical University. The recipient, a 53-year-old male, underwent orthotopic transplantation, wherein the porcine organs were situated in their correct anatomical positions. To mitigate the risk of hyperacute rejection and coagulopathy, the donor porcine liver underwent specific genetic modifications: the excision of three porcine genes and the integration of three human genes.
此手術由竇可峰教授率領的團隊執行，涉及廣西醫科大學第一與第二附屬醫院。受體為一名 53 歲男性，接受了同種異位移植，將豬器官安置於正確的解剖位置。為了降低超急性排斥反應與凝血功能障礙的風險，捐贈的豬肝經過了特定的基因修改：切除了三個豬基因並植入了三個人類基因。
Regarding physiological outcomes, the transplanted organs maintained hemodynamic stability and functional viability for approximately five days. The liver demonstrated the secretion of bile and exhibited a behavioral shift toward human-like metabolic activity, while the kidneys facilitated the excretion of urine and the normalization of creatinine and urea levels. The study concludes that the coordinated operation of multiple xenogeneic organs is feasible, although the trial was terminated prematurely in accordance with the directives of the patient's family.
在生理結果方面，移植器官維持了血流動力學穩定與功能活性約五天。肝臟顯示有膽汁分泌，且代謝活動趨向人體化；腎臟則促進了尿液排出，並使肌酐與尿素水平恢復正常。研究結論認為，多個異種器官的協調運行是可行的，儘管該試驗根據患者家屬的指示提前終止。
Institutional positioning emphasizes that porcine models are prioritized over non-human primates due to comparable organ dimensions, metabolic similarities, and a diminished probability of zoonotic transmission. Despite these advancements, the transition to clinical application remains contingent upon the resolution of systemic barriers, specifically long-term immune compatibility and the mitigation of cross-species disease transmission.
機構定位強調，由於豬模型在器官尺寸、代謝相似度上與人類較為接近，且人畜共患病傳播機率較低，因此比非人類靈長類動物更具優先性。儘管取得了這些進展，但轉向臨床應用仍取決於系統性障礙的解決，特別是長期免疫兼容性以及減輕跨物種疾病傳播的問題。
Conclusion
The study provides preliminary evidence for the viability of multi-organ xenotransplantation, though long-term clinical efficacy remains unverified.
該研究為多器官異種移植的可行性提供了初步證據，但長期臨床療效尚未得到驗證。
Vocabulary Learning
The Architecture of Nominalization and Latinate Precision
To bridge the gap from B2 to C2, a student must move beyond describing actions (verb-centric) toward constructing concepts (noun-centric). This text is a masterclass in Lexical Density—the packing of complex information into single noun phrases to achieve an objective, scholarly tone.
◈ The 'Surgical' Precision of Nouns
Notice how the author avoids simple verbs in favor of high-register nominals. This transforms a narrative into a formal report:
- B2 Approach: "The researchers tried to stop the body from rejecting the organs quickly."
- C2 Execution: "To mitigate the risk of hyperacute rejection..."
Analysis: The use of mitigate (to make less severe) combined with the nominal hyperacute rejection strips away the subjectivity of the researcher and focuses entirely on the biological phenomenon. At C2, you don't just 'fix' a problem; you mitigate a risk or resolve a systemic barrier.
◈ Semantic Nuance: The 'Contingent' Logical Bridge
Observe the phrase: "the transition to clinical application remains contingent upon the resolution of systemic barriers."
This is the hallmark of C2 academic writing. Instead of saying "it depends on," the author uses contingency. This shifts the logic from a simple cause-effect relationship to a formal condition of existence.
Key Linguistic Pivot:
Contingent upon implies a formal, often legal or scientific, dependency.
Resolution of replaces "fixing" to suggest a comprehensive solving of a complex problem.
◈ Collocational Sophistication
To master the C2 level, you must internalize these high-level pairings found in the text:
- Hemodynamic stability: (Not just 'stable blood pressure')
- Functional viability: (The capacity to actually work in a living system)
- Zoonotic transmission: (Specific scientific terminology for animal-to-human disease)
- Preliminary evidence: (Hedging language that protects the author from overstating claims)
C2 Takeaway: Elevate your writing by replacing process verbs with state nouns. Do not say "the organs worked together"; say "the coordinated operation of multiple xenogeneic organs is feasible."