Hormonal pretreatment preserves liver regenerative capacity and minimizes inflammation after partial hepatectomy



Document title: Hormonal pretreatment preserves liver regenerative capacity and minimizes inflammation after partial hepatectomy
Journal: Annals of hepatology
Database: PERIÓDICA
System number: 000415621
ISSN: 1665-2681
Authors: 1
2
2
2
2
Institutions: 1Universidad de Chile, Facultad de Ciencias, Santiago de Chile. Chile
2Universidad de Chile, Facultad de Medicina, Santiago de Chile. Chile
Year:
Season: Nov-Dic
Volumen: 12
Number: 6
Pages: 881-891
Country: México
Language: Inglés
Document type: Artículo
Approach: Analítico, descriptivo
English abstract The treatment of brain dead donors with combined hormonal resuscitation protocols, including methylprednisolone (MP) and triiodothyronine (T3), among others, was developed to increase the viability and function of transplanted organs, primarily heart and lung. Even when it has regarded successful results in term of donors and organs recovery, its effects over specific parameters in organs like the liver are unknown. Material and methods. Male Sprague-Dawley rats were pretreated with MP (0.34 mg/kg) and/or T3 (0.05 mg/kg) or their vehicles, and then subjected to partial hepatectomy of 70%. Three experimental groups and their respective controls were conformed: a. T3; b. NaOH; c. MP; d. vMP; e. MP+T3 and f. vMP+NaOH. The groups were evaluated at 0, 16, 24, 72 and 120 h post surgery. The effects of this protocol on regeneration, liver mass recovery, liver injury, oxidative stress and liver function were analyzed. Results. MP+T3 pretreatment does not deleteriously affect liver regeneration after partial hepatectomy, as shown in the curve of total mass recovery, Ki67 staining and mitosis counting, and does not alter liver function. In addition, the treatment modestly decreases oxidative stress and liver injury, as evidenced by transaminases levels, histological analysis and oxidized proteins content. Conclusion. These preclinical results indicate that MP+T3 is harmless for liver tissue regeneration post hepatectomy and additionally exhibits anti-inflammatory and antioxidant effects; therefore, it would not be contraindicated for the treatment of multiorgan donors in brain death and particularly, if the occurrence of small for size syndrome is suspected
Disciplines: Medicina
Keyword: Cirugía,
Gastroenterología,
Donación de órganos,
Hígado,
Hepatectomía,
Preservación de órganos,
Regeneración hepática,
Metilprednisolona,
Triiodotironina
Keyword: Medicine,
Gastroenterology,
Surgery,
Organ donation,
Liver,
Hepatectomy,
Organ preservation,
Liver regeneration,
Methylprednisolone,
Triiodothyronine
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