Pub Date : 2024-08-14DOI: 10.1038/s41684-024-01425-z
Fabien Filaire, Sander Herfst
A highly pathogenic H5N1 influenza virus is spreading in U.S. dairy cattle and has been transmitted to other species, including humans, probably through contaminated milk. Understanding how the virus spreads among cattle and its potential for mammalian adaptation and airborne transmission is crucial for effective outbreak control and public health safety.
{"title":"The highly pathogenic H5N1 virus found in U.S. dairy cattle has some characteristics that could enhance infection and transmission among mammals","authors":"Fabien Filaire, Sander Herfst","doi":"10.1038/s41684-024-01425-z","DOIUrl":"10.1038/s41684-024-01425-z","url":null,"abstract":"A highly pathogenic H5N1 influenza virus is spreading in U.S. dairy cattle and has been transmitted to other species, including humans, probably through contaminated milk. Understanding how the virus spreads among cattle and its potential for mammalian adaptation and airborne transmission is crucial for effective outbreak control and public health safety.","PeriodicalId":17936,"journal":{"name":"Lab Animal","volume":"53 9","pages":"224-225"},"PeriodicalIF":5.9,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41684-024-01425-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141980956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-09DOI: 10.1038/s41684-024-01410-6
Daniel G. E. Thiem, Daniel Stephan, Alexander Ziebart, Robert Ruemmler, Julian Riedel, Shankeeth Vinayahalingam, Bilal Al-Nawas, Sebastian Blatt, Peer W. Kämmerer
Free flap failure represents a substantial clinical burden. The role of intraoperative volume management remains controversial, with valid studies lacking. Here, using a large animal model, we investigated the influence of volume management on free flap perfusion and metabolism. Autotransfer of a musculocutaneous gracilis flap was performed on 31 German domestic pigs, with arterial anastomosis and catheterization of the pedicle vein for sequential blood sampling. Flap reperfusion was followed by induction of a hemorrhagic shock with maintenance for 30 min and subsequent circulation stabilization with crystalloid solution, crystalloid solution and catecholamine, autotransfusion or colloidal solution. Flap perfusion and oxygenation were periodically assessed using hyperspectral imaging. Flap metabolism was assessed via periodic blood gas analyses. Hyperspectral imaging revealed no difference in either superficial or deep tissue oxygen saturation, tissue hemoglobin or tissue water content between the test groups at any time point. Blood gas analyses showed that lactate levels were significantly increased in the group that received crystalloid solution and catecholamine, after circulatory stabilization and up to 2 h after. We conclude that, in hemorrhagic shock, volume management impacts acid–base balance in free flaps. Crystalloid solutions with norepinephrine increase lactate levels, yet short-term effects on flap perfusion seem minimal, suggesting that vasopressors are not detrimental. Free flap is widely used in head and neck reconstructive surgery, but fluid management of surgical patients remains controversial. Here, Thiem et al. used a pig model to monitor the effects of volume management on free flap perfusion and metabolism.
{"title":"Effects of volume management on free flap perfusion and metabolism in a large animal model study","authors":"Daniel G. E. Thiem, Daniel Stephan, Alexander Ziebart, Robert Ruemmler, Julian Riedel, Shankeeth Vinayahalingam, Bilal Al-Nawas, Sebastian Blatt, Peer W. Kämmerer","doi":"10.1038/s41684-024-01410-6","DOIUrl":"10.1038/s41684-024-01410-6","url":null,"abstract":"Free flap failure represents a substantial clinical burden. The role of intraoperative volume management remains controversial, with valid studies lacking. Here, using a large animal model, we investigated the influence of volume management on free flap perfusion and metabolism. Autotransfer of a musculocutaneous gracilis flap was performed on 31 German domestic pigs, with arterial anastomosis and catheterization of the pedicle vein for sequential blood sampling. Flap reperfusion was followed by induction of a hemorrhagic shock with maintenance for 30 min and subsequent circulation stabilization with crystalloid solution, crystalloid solution and catecholamine, autotransfusion or colloidal solution. Flap perfusion and oxygenation were periodically assessed using hyperspectral imaging. Flap metabolism was assessed via periodic blood gas analyses. Hyperspectral imaging revealed no difference in either superficial or deep tissue oxygen saturation, tissue hemoglobin or tissue water content between the test groups at any time point. Blood gas analyses showed that lactate levels were significantly increased in the group that received crystalloid solution and catecholamine, after circulatory stabilization and up to 2 h after. We conclude that, in hemorrhagic shock, volume management impacts acid–base balance in free flaps. Crystalloid solutions with norepinephrine increase lactate levels, yet short-term effects on flap perfusion seem minimal, suggesting that vasopressors are not detrimental. Free flap is widely used in head and neck reconstructive surgery, but fluid management of surgical patients remains controversial. Here, Thiem et al. used a pig model to monitor the effects of volume management on free flap perfusion and metabolism.","PeriodicalId":17936,"journal":{"name":"Lab Animal","volume":"53 10","pages":"268-275"},"PeriodicalIF":5.9,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41684-024-01410-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141908977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-01DOI: 10.1038/s41684-024-01418-y
Alexandra Le Bras
{"title":"Humidity and heat cause anxiety in mice","authors":"Alexandra Le Bras","doi":"10.1038/s41684-024-01418-y","DOIUrl":"10.1038/s41684-024-01418-y","url":null,"abstract":"","PeriodicalId":17936,"journal":{"name":"Lab Animal","volume":"53 8","pages":"192-192"},"PeriodicalIF":5.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141875245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-01DOI: 10.1038/s41684-024-01419-x
Alexandra Le Bras
{"title":"New guidelines for rodent cancer models","authors":"Alexandra Le Bras","doi":"10.1038/s41684-024-01419-x","DOIUrl":"10.1038/s41684-024-01419-x","url":null,"abstract":"","PeriodicalId":17936,"journal":{"name":"Lab Animal","volume":"53 8","pages":"192-192"},"PeriodicalIF":5.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141875249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-01DOI: 10.1038/s41684-024-01417-z
Alexandra Le Bras
{"title":"Improving transgenesis in zebrafish","authors":"Alexandra Le Bras","doi":"10.1038/s41684-024-01417-z","DOIUrl":"10.1038/s41684-024-01417-z","url":null,"abstract":"","PeriodicalId":17936,"journal":{"name":"Lab Animal","volume":"53 8","pages":"192-192"},"PeriodicalIF":5.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141875247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：