1
|
Xie S, Qin R, Zeng W, Li J, Lai Y. Pseudopregnant mice generated from Piwil1 deficiency sterile mice. PLoS One 2024; 19:e0296414. [PMID: 38771805 PMCID: PMC11108164 DOI: 10.1371/journal.pone.0296414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 12/12/2023] [Indexed: 05/23/2024] Open
Abstract
Vasectomized mice play a key role in the production of transgenic mice. However, vasectomy can cause great physical and psychological suffering to mice. Therefore, there is an urgent need to find a suitable replacement for vasectomized mice in the production of transgenic mice. In this study, we generated C57BL/6J mice (Piwil1 D633A-INS99, Piwil1mt/mt) with a 99-base insertion in the Miwi (Piwil1) gene using CRISPR/Cas9 technology and showed that Piwil1mt/+ heterozygous mice were normally fertile and that homozygous Piwil1mt/mt males were sterile and females were fertile. Transplantation of normal fertilized eggs into wild pseudopregnant females following mating with Piwil1mt/mt males produced no Piwil1mt/mt genotype offspring, and the number of offspring did not differ significantly from that of pseudopregnant mice following mating and breeding with ligated males. The CRISPR‒Cas9 system is available for generating Miwi-modified mice, and provides a powerful resource to replace ligated males in assisted reproduction research.
Collapse
Affiliation(s)
- Shuoshuo Xie
- Jiangsu Animal Experimental Center of Medicine and Pharmacy, Department of Cell Biology, Department of Medical Genetics, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Ruixin Qin
- Jiangsu Animal Experimental Center of Medicine and Pharmacy, Department of Cell Biology, Department of Medical Genetics, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Wentao Zeng
- Jiangsu Animal Experimental Center of Medicine and Pharmacy, Department of Cell Biology, Department of Medical Genetics, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu Province, China
- Jiangsu Laboratory Animal Center, Animal Core facility, Key Laboratory of Model Animal, Nanjing, Jiangsu Province, China
| | - Jianmin Li
- Jiangsu Animal Experimental Center of Medicine and Pharmacy, Department of Cell Biology, Department of Medical Genetics, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu Province, China
- Jiangsu Laboratory Animal Center, Animal Core facility, Key Laboratory of Model Animal, Nanjing, Jiangsu Province, China
| | - Yana Lai
- Jiangsu Animal Experimental Center of Medicine and Pharmacy, Department of Cell Biology, Department of Medical Genetics, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu Province, China
- Jiangsu Laboratory Animal Center, Animal Core facility, Key Laboratory of Model Animal, Nanjing, Jiangsu Province, China
| |
Collapse
|
2
|
Chasles M, Marcet-Rius M, Chou JY, Teruel E, Pageat P, Cozzi A. Cutaneous application of SecurePig® FLASH, a Pig appeasing pheromone analogue, facilitates adaptation and manages social behavior during feeding in semi-extensive conditions. Porcine Health Manag 2024; 10:13. [PMID: 38444017 PMCID: PMC10916065 DOI: 10.1186/s40813-024-00363-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 02/21/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND Farm animals face several challenges throughout their lives, which can affect both their welfare and their productivity. Promoting adaptation in animals is one way of limiting these consequences. In various animal species, the use of maternal appeasing pheromones is efficient to reduce aggressiveness, improve adaptation and thus ensuring better welfare and productivity. This study sought to investigate the efficiency of a treatment with a Pig Appeasing Pheromone (PAP) on the behavior of pigs reared under semi-extensive conditions and exposed to a potential conflict- collective feeding. Animals (n = 14 divided in 2 groups of 7) were subjected to 3 different phases, (A) baseline - no pigs received the PAP, (B) SP - 2 out of the 7 pigs per group received the PAP and (C) AP- all pigs received the PAP. Behaviors related to feeding, aggression and locomotion were compared between the 3 phases of the study. RESULTS Compared to the baseline period, we observed that the number of head knocks was reduced when some pigs (p < 0.001) and all pigs (p < 0.005) received the PAP. Similarly, we observed that the number of fleeing attempts was reduced when some pigs (p < 0.001) and all pigs (p < 0.001) were treated when compared to baseline. This number was lower in the AP phase than in the SP phase (p < 0.001). When all pigs were treated (AP), we also observed that they spent less time investigating the floor than during the two other phases (p < 0.001), but they seemed more likely to leave the feeder due to the presence or behavior of another pig of the group (SP vs. AP, p < 0.05). CONCLUSIONS The PAP application improved adaptation in pigs by reducing aggressiveness and promoting conflict avoidance. Those results validate the efficiency of the pheromonal treatment under semi-extensive rearing conditions to help pigs to cope with a challenging situation. Using PAP in the pig industry seems interesting to limit unwanted consequences of farm practices on animal welfare and productivity, by promoting their adaptation.
Collapse
Affiliation(s)
- Manon Chasles
- Research Institute in Semiochemistry and Applied Ethology (IRSEA), Quartier Salignan, 84400, Apt, France.
| | - Míriam Marcet-Rius
- Research Institute in Semiochemistry and Applied Ethology (IRSEA), Quartier Salignan, 84400, Apt, France
| | - Jen-Yun Chou
- Research Institute in Semiochemistry and Applied Ethology (IRSEA), Quartier Salignan, 84400, Apt, France
- Pig Development Department, Animal & Grassland Research and Innovation Centre, Teagasc, Moorepark, Co. Cork P61 C996, Moorepark, Ireland
- Institute of Animal Welfare Science, University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210, Vienna, Vienna, Austria
| | - Eva Teruel
- Research Institute in Semiochemistry and Applied Ethology (IRSEA), Quartier Salignan, 84400, Apt, France
| | - Patrick Pageat
- Research Institute in Semiochemistry and Applied Ethology (IRSEA), Quartier Salignan, 84400, Apt, France
| | - Alessandro Cozzi
- Research Institute in Semiochemistry and Applied Ethology (IRSEA), Quartier Salignan, 84400, Apt, France
| |
Collapse
|
3
|
Lee GH, Kim HJ, Joo YS, Kim SY, Reed B, Hart LA, Choe BI. Development of Two Korean IACUC Guidance Documents to Foster Implementation of the Three Rs. Altern Lab Anim 2023; 51:335-349. [PMID: 37599468 DOI: 10.1177/02611929231194309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
In Korea, Institutional Animal Care and Use Committees (IACUCs) have been legally required to apply the Three Rs principles (i.e. replacement, reduction and refinement) and undertake the ethical review of animal study protocols, since 2008. According to Korean law, each IACUC is required to appoint at least one lay member recommended by a non-governmental animal protection organisation, who participates in the ethical review process as part of this role. Despite the importance of the Three Rs and the ethical review process, limited information and practical resources are available for IACUC members in the Korean language, particularly for lay members who are inexperienced in animal experimentation. In January 2020, the Animal and Plant Quarantine Agency announced the funding for a six-month research project to develop guidance to assist IACUC members in carrying out effective and efficient protocol reviews in line with Korean legislative requirements. This funding was awarded for the production of two IACUC guidance documents - 'Guide for Animal Study Protocols' and 'Guide for the IACUC Lay Member' - which were published in December 2020. These guidance documents aim to foster the implementation of the Three Rs and provide practical resources for IACUC members, researchers and other relevant personnel. This paper describes the framework for animal use in Korea and the overall production of these two IACUC Guidance Documents.
Collapse
Affiliation(s)
- Gwi Hyang Lee
- Nicholas Cardinal Cheong Graduate School for Life, The Catholic University of Korea, Seoul, Republic of Korea
- Korea Information Center for the 3Rs, BIC Study Foundation, Seoul, Republic of Korea
| | - Heui-Jin Kim
- Animal Protection & Welfare Division, Animal and Plant Quarantine Agency, Ministry of Agriculture, Food and Rural Affairs, Gimcheon-si, Republic of Korea
| | - Young-Shin Joo
- Laboratory Animal Research Center, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seung Yeon Kim
- Animal Research Facility/IACUC, International Vaccine Institute, Seoul, Republic of Korea
| | - Barney Reed
- Animals in Science Department, RSPCA, Sussex, UK
| | - Lynette A Hart
- School of Veterinary Medicine, University of California, Davis, CA, USA
| | - Byung In Choe
- Nicholas Cardinal Cheong Graduate School for Life, The Catholic University of Korea, Seoul, Republic of Korea
| |
Collapse
|
4
|
Talbot SR, Kumstel S, Schulz B, Tang G, Abdelrahman A, Seume N, Wendt EHU, Eichberg J, Häger C, Bleich A, Vollmar B, Zechner D. Robustness of a multivariate composite score when evaluating distress of animal models for gastrointestinal diseases. Sci Rep 2023; 13:2605. [PMID: 36788346 PMCID: PMC9929045 DOI: 10.1038/s41598-023-29623-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 02/07/2023] [Indexed: 02/16/2023] Open
Abstract
The fundament of an evidence-based severity assessment in laboratory animal science is reliable distress parameters. Many readouts are used to evaluate and determine animal distress and the severity of experimental procedures. Therefore, we analyzed four distinct parameters like the body weight, burrowing behavior, nesting, and distress score in the four gastrointestinal animal models (pancreatic ductal adenocarcinoma (PDA), pancreatitis, CCl4 intoxication, and bile duct ligation (BDL)). Further, we determined the parameters' robustness in various experimental subgroups due to slight variations like drug treatment or telemeter implantations. We used non-parametric bootstrapping to get robust estimates and 95% confidence intervals for the experimental groups. It was found that the performance of the readout parameters is model-dependent and that the distress score is prone to experimental variation. On the other hand, we also found that burrowing and nesting can be more robust than, e.g., the body weight when evaluating PDA. However, the body weight still was highly robust in BDL, pancreatitis, and CCl4 intoxication. To address the complex nature of the multi-dimensional severity space, we used the Relative Severity Assessment (RELSA) procedure to combine multiple distress parameters into a score and mapped the subgroups and models against a defined reference set obtained by telemeter implantation. This approach allowed us to compare the severity of individual animals in the experimental subgroups using the maximum achieved severity (RELSAmax). With this, the following order of severity was found for the animal models: CCl4 < PDA ≈ Pancreatitis < BDL. Furthermore, the robustness of the RELSA procedure and outcome was externally validated with a reference set from another laboratory also obtained from telemeter implantation. Since the RELSA procedure reflects the multi-dimensional severity information and is highly robust in estimating the quantitative severity within and between models, it can be deemed a valuable tool for laboratory animal severity assessment.
Collapse
Affiliation(s)
- Steven R Talbot
- Hannover Medical School, Institute for Laboratory Animal Science, Carl-Neuberg-Straße 1, 30625, Hannover, Germany.
| | - Simone Kumstel
- Rostock University Medical Center, Rudolf-Zenker-Institute for Experimental Surgery, Schillingallee 69a, 18057, Rostock, Germany
| | - Benjamin Schulz
- Rostock University Medical Center, Rudolf-Zenker-Institute for Experimental Surgery, Schillingallee 69a, 18057, Rostock, Germany
| | - Guanglin Tang
- Rostock University Medical Center, Rudolf-Zenker-Institute for Experimental Surgery, Schillingallee 69a, 18057, Rostock, Germany
| | - Ahmed Abdelrahman
- Rostock University Medical Center, Rudolf-Zenker-Institute for Experimental Surgery, Schillingallee 69a, 18057, Rostock, Germany
| | - Nico Seume
- Rostock University Medical Center, Rudolf-Zenker-Institute for Experimental Surgery, Schillingallee 69a, 18057, Rostock, Germany
| | - Edgar H U Wendt
- Rostock University Medical Center, Rudolf-Zenker-Institute for Experimental Surgery, Schillingallee 69a, 18057, Rostock, Germany
| | - Johanna Eichberg
- Rostock University Medical Center, Rudolf-Zenker-Institute for Experimental Surgery, Schillingallee 69a, 18057, Rostock, Germany
| | - Christine Häger
- Hannover Medical School, Institute for Laboratory Animal Science, Carl-Neuberg-Straße 1, 30625, Hannover, Germany
| | - André Bleich
- Hannover Medical School, Institute for Laboratory Animal Science, Carl-Neuberg-Straße 1, 30625, Hannover, Germany
| | - Brigitte Vollmar
- Rostock University Medical Center, Rudolf-Zenker-Institute for Experimental Surgery, Schillingallee 69a, 18057, Rostock, Germany
| | - Dietmar Zechner
- Rostock University Medical Center, Rudolf-Zenker-Institute for Experimental Surgery, Schillingallee 69a, 18057, Rostock, Germany
| |
Collapse
|
5
|
Mansoori Z, Jahromi MK, Daryanoosh F, Forouhari S. High intensity interval training is more effective than moderate intensity continuous training in ameliorating the influence of acute noise stress on coagulation factors. SPORT SCIENCES FOR HEALTH 2023. [DOI: 10.1007/s11332-022-01041-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|