Practical considerations in the use of a porcine model (Sus scrofa domesticus) to assess prevention of postoperative peritubal adhesions.
Infertility has been a common postoperative problem caused by peritoneal adhesions. Since several prophylactic agents have recently shown promising preliminary results, more complete studies comparing their real efficacy and safety are needed urgently. The aim of this study was to investigate and de...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2020-01-01
|
| Series: | PLoS ONE |
| Online Access: | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0219105&type=printable |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850043207949221888 |
|---|---|
| author | Claudio Peixoto Crispi Claudio Peixoto Crispi Fernando Luis Fernandes Mendes Claudio Moura de Andrade Leon Cardeman Nilton de Nadai Filho Elyzabeth Avvad Portari Marlon de Freitas Fonseca |
| author_facet | Claudio Peixoto Crispi Claudio Peixoto Crispi Fernando Luis Fernandes Mendes Claudio Moura de Andrade Leon Cardeman Nilton de Nadai Filho Elyzabeth Avvad Portari Marlon de Freitas Fonseca |
| author_sort | Claudio Peixoto Crispi |
| collection | DOAJ |
| description | Infertility has been a common postoperative problem caused by peritoneal adhesions. Since several prophylactic agents have recently shown promising preliminary results, more complete studies comparing their real efficacy and safety are needed urgently. The aim of this study was to investigate and describe practical considerations of a porcine model that can be used to assess such prophylactic agents. First, 10 healthy 5½ months old female pigs (24.3-31.3 Kg) underwent a standardized laparoscopy to provoke peritubal adhesion formation without prophylactic agents. After 30 days, a second-look laparoscopy was performed to evaluate adhesions and perform adnexectomy for histopathological evaluation. Adhesions at different sites were classified by grade, for which the scores range from 0 (no adhesion) to 3 (very strong vascularized adhesions), and also by area, with scores ranging from 0 (no adhesion) to 4 (>75% of the injured area). The histopathological evaluation of the distal uterine horns, oviducts and ovaries were compared withthose from a control group of six healthy pigs with no previous surgery. Biological samples were collected to assess vitality, inflammation and renal, hepatic and hematopoietic systems. There were small (but significant) changes in serum albumin (P = 0.07), globulin (P = 0.07), C-reactive protein (P = 0.011), fibrinogen (P = 0.023) and bilirubin (P<0.01) after 30 days, but all values were within the normal range. No inflammation or abscess formation was observed, but different degrees of adhesion were identified. The estimated occurrence of adhesion (scores >0) and of strong / very strong adhesion (scores >1) was 75% (95% CI: 55-94.9) and 65% (95% CI: 45-85), respectively. The porcine model represents a useful animal platform that can be used to test the efficacy and safety of candidate prophylactic agents intended to prevent postoperative peritubal adhesions formation. We present several practical considerations and measures that can help to minimize animal suffering and avoid problems during such experiments. |
| format | Article |
| id | doaj-art-345c2ba7a17b4b9fadd2b314bfc4c0be |
| institution | DOAJ |
| issn | 1932-6203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-345c2ba7a17b4b9fadd2b314bfc4c0be2025-08-20T02:55:17ZengPublic Library of Science (PLoS)PLoS ONE1932-62032020-01-01151e021910510.1371/journal.pone.0219105Practical considerations in the use of a porcine model (Sus scrofa domesticus) to assess prevention of postoperative peritubal adhesions.Claudio Peixoto CrispiClaudio Peixoto CrispiFernando Luis Fernandes MendesClaudio Moura de AndradeLeon CardemanNilton de Nadai FilhoElyzabeth Avvad PortariMarlon de Freitas FonsecaInfertility has been a common postoperative problem caused by peritoneal adhesions. Since several prophylactic agents have recently shown promising preliminary results, more complete studies comparing their real efficacy and safety are needed urgently. The aim of this study was to investigate and describe practical considerations of a porcine model that can be used to assess such prophylactic agents. First, 10 healthy 5½ months old female pigs (24.3-31.3 Kg) underwent a standardized laparoscopy to provoke peritubal adhesion formation without prophylactic agents. After 30 days, a second-look laparoscopy was performed to evaluate adhesions and perform adnexectomy for histopathological evaluation. Adhesions at different sites were classified by grade, for which the scores range from 0 (no adhesion) to 3 (very strong vascularized adhesions), and also by area, with scores ranging from 0 (no adhesion) to 4 (>75% of the injured area). The histopathological evaluation of the distal uterine horns, oviducts and ovaries were compared withthose from a control group of six healthy pigs with no previous surgery. Biological samples were collected to assess vitality, inflammation and renal, hepatic and hematopoietic systems. There were small (but significant) changes in serum albumin (P = 0.07), globulin (P = 0.07), C-reactive protein (P = 0.011), fibrinogen (P = 0.023) and bilirubin (P<0.01) after 30 days, but all values were within the normal range. No inflammation or abscess formation was observed, but different degrees of adhesion were identified. The estimated occurrence of adhesion (scores >0) and of strong / very strong adhesion (scores >1) was 75% (95% CI: 55-94.9) and 65% (95% CI: 45-85), respectively. The porcine model represents a useful animal platform that can be used to test the efficacy and safety of candidate prophylactic agents intended to prevent postoperative peritubal adhesions formation. We present several practical considerations and measures that can help to minimize animal suffering and avoid problems during such experiments.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0219105&type=printable |
| spellingShingle | Claudio Peixoto Crispi Claudio Peixoto Crispi Fernando Luis Fernandes Mendes Claudio Moura de Andrade Leon Cardeman Nilton de Nadai Filho Elyzabeth Avvad Portari Marlon de Freitas Fonseca Practical considerations in the use of a porcine model (Sus scrofa domesticus) to assess prevention of postoperative peritubal adhesions. PLoS ONE |
| title | Practical considerations in the use of a porcine model (Sus scrofa domesticus) to assess prevention of postoperative peritubal adhesions. |
| title_full | Practical considerations in the use of a porcine model (Sus scrofa domesticus) to assess prevention of postoperative peritubal adhesions. |
| title_fullStr | Practical considerations in the use of a porcine model (Sus scrofa domesticus) to assess prevention of postoperative peritubal adhesions. |
| title_full_unstemmed | Practical considerations in the use of a porcine model (Sus scrofa domesticus) to assess prevention of postoperative peritubal adhesions. |
| title_short | Practical considerations in the use of a porcine model (Sus scrofa domesticus) to assess prevention of postoperative peritubal adhesions. |
| title_sort | practical considerations in the use of a porcine model sus scrofa domesticus to assess prevention of postoperative peritubal adhesions |
| url | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0219105&type=printable |
| work_keys_str_mv | AT claudiopeixotocrispi practicalconsiderationsintheuseofaporcinemodelsusscrofadomesticustoassesspreventionofpostoperativeperitubaladhesions AT claudiopeixotocrispi practicalconsiderationsintheuseofaporcinemodelsusscrofadomesticustoassesspreventionofpostoperativeperitubaladhesions AT fernandoluisfernandesmendes practicalconsiderationsintheuseofaporcinemodelsusscrofadomesticustoassesspreventionofpostoperativeperitubaladhesions AT claudiomouradeandrade practicalconsiderationsintheuseofaporcinemodelsusscrofadomesticustoassesspreventionofpostoperativeperitubaladhesions AT leoncardeman practicalconsiderationsintheuseofaporcinemodelsusscrofadomesticustoassesspreventionofpostoperativeperitubaladhesions AT niltondenadaifilho practicalconsiderationsintheuseofaporcinemodelsusscrofadomesticustoassesspreventionofpostoperativeperitubaladhesions AT elyzabethavvadportari practicalconsiderationsintheuseofaporcinemodelsusscrofadomesticustoassesspreventionofpostoperativeperitubaladhesions AT marlondefreitasfonseca practicalconsiderationsintheuseofaporcinemodelsusscrofadomesticustoassesspreventionofpostoperativeperitubaladhesions |