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Borjaili ASD, Nunes GC, Silveira JB, Dall'Orto FH, Lorenzoni GS, Borjaili MED, Campagnaro BP, de Lima MCM, Paulo MSL, Paulo DNS, Nunes TA. The influence of splenic tissue on the survival and TCD4 and TCD8 lymphocyte rates in rats subjected to fecal peritonitis induction. Acta Cir Bras 2020; 35:e202001003. [PMID: 33237175 PMCID: PMC7709900 DOI: 10.1590/s0102-865020200100000003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/08/2020] [Accepted: 09/04/2020] [Indexed: 11/21/2022] Open
Abstract
PURPOSE Comparing survival rates of rats subjected to spleen procedures after fecal peritonitis induction. Assessing changes in TCD4 and CD8 lymphocyte rates before and after the procedures. Correlating animal survival with CD4 and CD8 lymphocytes. METHODS Thirty male Wistar rats were distributed into 3 groups of ten: spleen manipulation (SM); total splenectomy (TS); subtotal splenectomy with preservation of the inferior pole (IP). Rats were subjected to surgical procedure depending on the group. Seven days after surgery they underwent induction of peritonitis and survival time was recorded. All animals were subjected to two blood collections: before surgery and 70 days after it for TCD4/TCD8 lymphocyte counting. RESULTS Mean survival time was longer in the IP and SM groups and shorter in the TS group; there was significant difference between them. The comparison of the median number of CD4 did not present changes, whereas the comparison of the median number of CD8 decreased in the SM and IP groups. The correlation between the median number of TCD4 and TCD8 lymphocytes and the animals' survival was not significant. CONCLUSION The maintenance of splenic tissue contributed to increase the survival of rats and there was a change in the number of TCD8 lymphocytes.
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Affiliation(s)
- Andréa Saade Daher Borjaili
- Fellow PhD degree, Postgraduate Program in Surgical and Ophthalmological Applied Sciences, Medical School, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte-MG, Brazil. Scientific and intellectual contributions to the study, analysis and interpretation of data, manuscript preparation and writing
| | - Giseli Celestino Nunes
- Graduate student, School of Sciences, Santa Casa de Misericórdia de Vitória (EMESCAM), Vitoria-ES, Brazil. Acquisition of data, technical procedures
| | - Julia Belizário Silveira
- Graduate student, School of Sciences, Santa Casa de Misericórdia de Vitória (EMESCAM), Vitoria-ES, Brazil. Acquisition of data, technical procedures
| | | | - Gabriel Souza Lorenzoni
- Graduate student, School of Sciences, Santa Casa de Misericórdia de Vitória (EMESCAM), Vitoria-ES, Brazil. Acquisition of data, technical procedures
| | | | - Bianca Prandi Campagnaro
- PhD, Full, Professor, Laboratory of Translational Physiology and Pharmacology, Pharmaceutical Sciences Graduate Program, Universidade Vila Velha (UVV), Brazil. Flow cytometry protocols, analysis of data
| | | | - Marcela Souza Lima Paulo
- PhD, Associate Professor, School of Sciences, EMESCAM, Vitoria-ES, Brazil. Intellectual and scientific content of the study, manuscript preparation, critical revision
| | - Danilo Nagib Salomão Paulo
- PhD, Chairman, Full Professor, Department of Surgery, School of Sciences, EMESCAM, Vitoria-ES, Brazil. Intellectual, scientific, conception and design of the study; critical revision; final approval
| | - Tarcizo Afonso Nunes
- PhD, Chairman, Full Professor, Department of Surgery, UFMG, Belo Horizonte-MG, Brazil. Intellectual and scientific content of the study, critical revision, final approval
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