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Pemafibrate ameliorates renal injury through induction of FGF21 and ketone body production in male mice.
IF 2.2
Physiological Reports Pub Date : 2025-02-01 DOI: 10.14814/phy2.70135
Kunihiko Takahara, Noriyuki Ouchi, Tomonobu Takikawa, Yuta Ozaki, Lixin Fang, Hiroshi Kawanishi, Minako Tatsumi, Yoshimitsu Yura, Katsuhiro Kato, Mikito Takefuji, Toyoaki Murohara, Koji Ohashi
{"title":"Pemafibrate ameliorates renal injury through induction of FGF21 and ketone body production in male mice.","authors":"Kunihiko Takahara, Noriyuki Ouchi, Tomonobu Takikawa, Yuta Ozaki, Lixin Fang, Hiroshi Kawanishi, Minako Tatsumi, Yoshimitsu Yura, Katsuhiro Kato, Mikito Takefuji, Toyoaki Murohara, Koji Ohashi","doi":"10.14814/phy2.70135","DOIUrl":"10.14814/phy2.70135","url":null,"abstract":"<p><p>Chronic kidney disease is a life-threatening disease worldwide. PPARα is a crucial transcriptional regulator of lipid metabolism and inflammation. Here, we examine whether a novel selective PPARα modulator, pemafibrate modulates renal injury in a model of unilateral ureteral obstruction (UUO). Administration of pemafibrate to wild-type (WT) mice led to reduction of renal dysfunction and fibrosis after UUO with accompanying increases in plasma levels of fibroblast growth factor (FGF) 21 and ketone body β-hydroxybutyrate (BHB). Treatment of WT mice with FGF21 or BHB precursor resulted in attenuation of renal fibrotic and inflammatory responses after UUO. Treatment of proximal tubular cells with FGF21 or BHB reduced expression of epithelial-mesenchymal transition markers. These findings suggest that pemafibrate could ameliorate renal damage, at least in part, by its abilities to increase the production of FGF21 and BHB.</p>","PeriodicalId":20083,"journal":{"name":"Physiological Reports","volume":"13 3","pages":"e70135"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11780494/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143067205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of home-based hot bathing on exercise-induced adaptations associated with short-term resistance exercise training in young men.
IF 2.2
Physiological Reports Pub Date : 2025-02-01 DOI: 10.14814/phy2.70188
Ryosuke Takeda, Tsubasa Amaike, Taichi Nishikawa, Kohei Watanabe
{"title":"Effect of home-based hot bathing on exercise-induced adaptations associated with short-term resistance exercise training in young men.","authors":"Ryosuke Takeda, Tsubasa Amaike, Taichi Nishikawa, Kohei Watanabe","doi":"10.14814/phy2.70188","DOIUrl":"10.14814/phy2.70188","url":null,"abstract":"<p><p>This study investigated whether home-based bathing intervention (HBBI) improve muscle strength gain and protect cardiovascular function by short-term resistance training (RT). Thirty-one healthy young men measured the maximum voluntary isometric contraction (MVC) of knee extensor, electrically evoked knee extension torque, and mean arterial pressure (MAP). Then, participants were divided into three groups with matching MVC: shower without bathing (control, n = 10), thermoneutral bathing (36°C-bathing, n = 10), and hot bathing (40°C-bathing, n = 11), and conducted 2 weeks of HBBI. Following familiarization for HBBI, participants completed 2 weeks of HBBI and acute RT (five sessions of three sets of 10 isometric knee extension at 60% MVC). Baseline neuromuscular and cardiovascular function was assessed again following completion of the 2 weeks of intervention. MVC was non-significantly increased after the RT period in 40°C-bathing with large effect size (partial η<sup>2</sup> = 0.450). The electrically evoked knee extension torque (10/100-Hz ratio) was significantly increased after the RT period in control (p = 0.020). MAP did not alter due to bathing intervention and RT (all p > 0.05). HBBI improved muscle strength without RT-induced alteration of peripheral muscle condition. Shower without bathing reduced muscle strength gain but increased peripheral muscle condition. Short-term RT does not adversely affect the cardiovascular function, regardless of HBBI.</p>","PeriodicalId":20083,"journal":{"name":"Physiological Reports","volume":"13 3","pages":"e70188"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11780495/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143067261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Defining the predictors for post renal transplant left ventricular dysfunction in end-stage renal disease patients.
IF 2.2
Physiological Reports Pub Date : 2025-02-01 DOI: 10.14814/phy2.70198
Mahboobeh Sheikhani, Hoorak Poorzand, Mahnaz Ahmadi, Negar Morovatdar, Sara Afshar, Zahra Shahinfar
{"title":"Defining the predictors for post renal transplant left ventricular dysfunction in end-stage renal disease patients.","authors":"Mahboobeh Sheikhani, Hoorak Poorzand, Mahnaz Ahmadi, Negar Morovatdar, Sara Afshar, Zahra Shahinfar","doi":"10.14814/phy2.70198","DOIUrl":"10.14814/phy2.70198","url":null,"abstract":"<p><p>Reduced left ventricular (LV) function predicts poor outcomes in end-stage renal disease (ESRD). This study aimed to identify the pre-renal transplantation echocardiographic parameters that can predict post-renal transplantation LV failure. This prospective longitudinal study was conducted on patients with ESRD who underwent renal transplantation during 1 year. All patients underwent echocardiography, including ejection fraction (EF), global longitudinal strain (GLS), left ventricular end-systolic diameter (LVESD), left ventricular end-diastolic volume (LVEDV), left ventricular end-diastolic diameter (LVEDD), interventricular septal (IVS) thickness, peak velocity of early diastolic transmitral flow (E), peak velocity of late transmitral flow (A), early diastolic myocardial relaxation (Em), E/A, E/Em, Left atrial volume (LAV) index, tricuspid regurgitation peak gradient (TRPG), systolic pulmonary artery pressure (SPAP), tricuspid annular plane systolic excursion (TAPSE), 1 week before and 1 month after renal transplantation. Fifty patients participated in the current study. All echocardiographic parameters improved after transplantation. Post-renal transplantation LV dysfunction was observed in 21 (42%) patients. Pre-renal transplantation echocardiographic parameters (LVEDV, LVESD, LVEDD, IVS, E/Em, TRPG, SPAP, and LAV index) could predict post-transplantation LV failure with high accuracy (AUC: 0.978).</p>","PeriodicalId":20083,"journal":{"name":"Physiological Reports","volume":"13 3","pages":"e70198"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11800135/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143256334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Therapeutic JAK inhibition does not impact lung injury during viral or bacterial pneumonia in male mice.
IF 2.2
Physiological Reports Pub Date : 2025-02-01 DOI: 10.14814/phy2.70232
Lokesh Sharma, Ravineel B Singh, Caden Ngeow, Rick van der Geest, Alexis M Duray, Nathanial J Tolman, Bryan J McVerry, Charles S Dela Cruz, John F Alcorn, William Bain, Keven M Robinson
{"title":"Therapeutic JAK inhibition does not impact lung injury during viral or bacterial pneumonia in male mice.","authors":"Lokesh Sharma, Ravineel B Singh, Caden Ngeow, Rick van der Geest, Alexis M Duray, Nathanial J Tolman, Bryan J McVerry, Charles S Dela Cruz, John F Alcorn, William Bain, Keven M Robinson","doi":"10.14814/phy2.70232","DOIUrl":"10.14814/phy2.70232","url":null,"abstract":"<p><p>Influenza infections are often complicated by secondary bacterial infections such as MRSA pneumonia, which increase morbidity and mortality. Viral infections lead to an inflammatory response that includes elevated levels of IL-6 and interferons. IL-6 activates the JAK/STAT signaling pathway, amplifying downstream inflammation. Given the clinical efficacy of the JAK inhibitor baricitinib in reducing disease severity in COVID-19, we evaluated its impact in a murine model of influenza, MRSA, and post-influenza MRSA pneumonia. Additionally, because IL-6 inhibitory therapies have improved outcomes during COVID-19, we evaluated the impact of IL-6 deletion on post-influenza MRSA pneumonia. In our studies, baricitinib effectively inhibited the JAK/STAT pathway in the lungs, as demonstrated by decreased interferon-stimulated genes (ISGs) and STAT3 phosphorylation. Despite this inhibition, baricitinib did not cause a global suppression of cytokines. Notably, baricitinib treatment did not impair either antiviral or antibacterial host immunity, inflammatory cell recruitment, or lung tissue injury. IL-6 deficiency did not alter weight loss, inflammatory cell recruitment, or bacterial burden during post-influenza MRSA pneumonia. These findings suggest that both JAK inhibition via baricitinib and IL-6 deletion do not enhance host defense or limit tissue injury in murine models of influenza and post-influenza MRSA pneumonia.</p>","PeriodicalId":20083,"journal":{"name":"Physiological Reports","volume":"13 3","pages":"e70232"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11805821/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143374535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A comprehensive operative risk assessment driving the application of major and emergency surgery in octogenarians.
IF 2.2
Physiological Reports Pub Date : 2025-02-01 DOI: 10.14814/phy2.70214
Francesco Puccetti, Alessandro Francesco Armienti, Stefano Turi, Lorenzo Cinelli, Riccardo Rosati, Ugo Elmore
{"title":"A comprehensive operative risk assessment driving the application of major and emergency surgery in octogenarians.","authors":"Francesco Puccetti, Alessandro Francesco Armienti, Stefano Turi, Lorenzo Cinelli, Riccardo Rosati, Ugo Elmore","doi":"10.14814/phy2.70214","DOIUrl":"10.14814/phy2.70214","url":null,"abstract":"<p><p>Medical decisions driving the clinical management of octogenarians who require either major or urgent surgery still depend on the patient's age rather than individual functions. This report created the privileged opportunity to illustrate the clinical effectiveness of a comprehensive function-based assessment. This was the case of an 83-year-old gentleman presenting with severe malnutrition and debility due to esophageal cancer. Multidimensional assessments were systematically performed to design the best-tailored therapeutic strategy, including prehabilitation, elective esophagectomy, and emergency laparotomy with ileocolic resection for postoperative hemorrhagic shock due to an occult colonic tumor. This clinical case highlights the need for a systematic and comprehensive assessment of fragile octogenarians, allowing accurate patient evaluation, identification of areas of functional optimization, and establishment of the most appropriate therapeutic decisions.</p>","PeriodicalId":20083,"journal":{"name":"Physiological Reports","volume":"13 4","pages":"e70214"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11835961/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143449751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Female glucagon receptor knockout mice are prone to steatosis but resistant to weight gain when fed a MASH-promoting GAN diet and a high-fat diet.
IF 2.2
Physiological Reports Pub Date : 2025-02-01 DOI: 10.14814/phy2.70235
Katrine D Galsgaard, Emilie Elmelund, Jenna E Hunt, Mark M Smits, Trisha J Grevengoed, Christina Christoffersen, Nils J Færgeman, Jesper Havelund, Nicolai J Wewer Albrechtsen, Jens J Holst
{"title":"Female glucagon receptor knockout mice are prone to steatosis but resistant to weight gain when fed a MASH-promoting GAN diet and a high-fat diet.","authors":"Katrine D Galsgaard, Emilie Elmelund, Jenna E Hunt, Mark M Smits, Trisha J Grevengoed, Christina Christoffersen, Nils J Færgeman, Jesper Havelund, Nicolai J Wewer Albrechtsen, Jens J Holst","doi":"10.14814/phy2.70235","DOIUrl":"10.14814/phy2.70235","url":null,"abstract":"<p><p>Glucagon is secreted from the pancreatic alpha cells and regulates not only hepatic glucose production, but also hepatic lipid and amino acid metabolism. Thus, glucagon provides a switch from hepatic glucose and lipid storage towards lipid and amino acid breakdown fueling glucose production during fasting. However, the effects of genetic deletion of the glucagon receptor on lipid metabolism are unclear. We therefore assessed parameters of lipid metabolism in fasted and non-fasted male and female mice with permanent whole-body deletion of the glucagon receptor (Gcgr<sup>-/-</sup> mice). To investigate whether Gcgr<sup>-/-</sup> mice tolerated a diet promoting metabolic dysfunction-associated steatohepatitis (MASH) and steatosis, we fed female Gcgr<sup>-/-</sup> mice the Gubra Amylin Nonalcoholic steatohepatitis (GAN) diet and high-fat diet (HFD), respectively. We found that non-fasted Gcgr<sup>-/-</sup> mice fed standard chow showed hypercholesterolemia and increased liver fat (borderline significant in non-fasted male Gcgr<sup>-/-</sup> mice, but significant in the remaining groups). In the fasted state these changes were insignificant due to fasting-induced steatosis. When challenged with a GAN diet and HFD, female Gcgr<sup>-/-</sup> mice were prone to steatosis and dyslipidemia but resistant to weight gain. Taken together, our data highlight glucagon as an important physiological regulator of not just glucose, but also hepatic lipid metabolism.</p>","PeriodicalId":20083,"journal":{"name":"Physiological Reports","volume":"13 4","pages":"e70235"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11845321/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143476831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exercise-induced effects on the metabolome of endurance and strength-trained athletes in comparison with sedentary subjects: A pilot study.
IF 2.2
Physiological Reports Pub Date : 2025-02-01 DOI: 10.14814/phy2.70206
Mario Parstorfer, Gernot Poschet, Kirsten Brüning, Birgit Friedmann-Bette
{"title":"Exercise-induced effects on the metabolome of endurance and strength-trained athletes in comparison with sedentary subjects: A pilot study.","authors":"Mario Parstorfer, Gernot Poschet, Kirsten Brüning, Birgit Friedmann-Bette","doi":"10.14814/phy2.70206","DOIUrl":"10.14814/phy2.70206","url":null,"abstract":"<p><p>Little is known about the exercise-induced adaptations of the metabolome in endurance and strength athletes in comparison with sedentary subjects. In order to analyze exercise-induced effects, quantitative, targeted metabolomics (Biocrates MxP® Quant 500) were performed in plasma samples before and after one bout of endurance or resistance exercise (RE) in 12 strength-trained weightlifters (ST), 10 endurance-trained runners (ET) and 12 sedentary controls (CG) at the end of each of three characteristic training phases. Performance and anthropometric data were significantly different between CG and athletes. A significant exercise-induced increase in lactate (Lac) was observed in all groups after all exercise tests. After endurance exercise (EE), there were significant increases in acetylcarnitine, arachidonic acid, and docosahexaenoic acid in CG and ET while aconitic acid, hippuric acid, glutamate, hexoses, xanthine were significantly increased in ET only. Only CG showed increases in several triglycerides following EE. RE, however, induced significant increases in Lac only. In summary, EE induces distinct increases in some metabolites of the fatty acid metabolism and the oxidative defense system in ET and CG. There are some indications for specific adaptations of the energy metabolism after long lasting endurance training with a distinct exercise-induced response of the metabolome in ET.</p>","PeriodicalId":20083,"journal":{"name":"Physiological Reports","volume":"13 3","pages":"e70206"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11793010/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143190202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Acute night shift work is associated with increased blood pressure and reduced sleep duration in healthy adults.
IF 2.2
Physiological Reports Pub Date : 2025-02-01 DOI: 10.14814/phy2.70231
Sophie L Seward, Erin E Kishman, Corey A Rynders, Josiane L Broussard
{"title":"Acute night shift work is associated with increased blood pressure and reduced sleep duration in healthy adults.","authors":"Sophie L Seward, Erin E Kishman, Corey A Rynders, Josiane L Broussard","doi":"10.14814/phy2.70231","DOIUrl":"10.14814/phy2.70231","url":null,"abstract":"<p><p>Shift workers have a 40% higher risk for cardiovascular disease (CVD) compared to people who work day shifts. However, the acute impact of shift work on CVD risk factors in free-living settings remains unclear. We therefore investigated the impact of acute night shift work on factors related to cardiovascular health including blood pressure (BP) and sleep duration. Twenty-four rotating shift workers (19F, 23 ± 4 y, BMI: 23 ± 3 kg/m<sup>2</sup>; mean ± SD) participated in a quasi-randomized crossover study. Assessments were conducted over the course of 1 day shift and one night shift in a free-living setting. BP was measured every 30 min by an ambulatory monitor. Sleep and wake times were recorded. Mixed effects models were conducted to examine changes in variables between conditions. Acute night shift work was associated with significantly higher 24 h systolic (107 ± 1 vs. 104 ± 1 mmHg; p < 0.0001) and diastolic (67 ± 1 vs. 64 ± 1 mmHg; p < 0.0001) BP, as well as blunted dipping patterns in systolic BP (8 ± 1 vs. 12 ± 1%; p = 0.032), as compared to day shift work. Sleep duration was significantly shorter during the night shift as compared to the day shift (4 h 04 ± 19 min vs. 8 h 22 ± 18 min; p < 0.0001). As little as one night of shift work in a free-living setting is sufficient to induce multiple CVD risk factors including increased BP and reduced sleep duration in healthy adults. It is critical to identify strategies to prevent or attenuate the negative impact of shift work on CVD risk in a large portion of the working population.</p>","PeriodicalId":20083,"journal":{"name":"Physiological Reports","volume":"13 3","pages":"e70231"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11815480/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143399607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Response of dorsal horn neurons in mice to high-frequency (kHz) biphasic stimulation is not sensitive to local temperature rise.
IF 2.2
Physiological Reports Pub Date : 2025-02-01 DOI: 10.14814/phy2.70205
Sergei Karnup, Stephanie Daugherty, Changfeng Tai, Naoki Yoshimura
{"title":"Response of dorsal horn neurons in mice to high-frequency (kHz) biphasic stimulation is not sensitive to local temperature rise.","authors":"Sergei Karnup, Stephanie Daugherty, Changfeng Tai, Naoki Yoshimura","doi":"10.14814/phy2.70205","DOIUrl":"10.14814/phy2.70205","url":null,"abstract":"<p><p>Clinically accepted for treatment of chronic pain 10 kHz-frequency electric spinal cord stimulation (10 kHz-SCS) releases more power in tissue compared to conventional low-frequency (<100 Hz) stimulation due to increased duty cycle. This is equivalent to the release of more heat in a surrounding tissue, which may change the functional state of affected neural elements. In the case of SCS, plausible candidates to be affected by thermal a component of kHz-frequency electric field stimulation (kHz-FS) are dorsal column axons and neurons of the superficial layers of the dorsal horn. In this study, we tested the hypothesis that joule heat produced by kHz-FS modulates neuronal excitability. In slices of the mouse spinal cord, we monitored membrane potential and membrane input resistance in neurons of lamina II during exposure to kHz-FS. Surprisingly, we found no correlation between temperature rise and changes of membrane parameters. Furthermore, the depolarizing effect of kHz-FS was always immediate and remained persistent throughout stimulation, whereas rise of temperature was delayed for 1-2 s and reached its saturation level within the following few seconds. Thus, we concluded that the thermal component has an insignificant role in the mechanism of kHz-FS action.</p>","PeriodicalId":20083,"journal":{"name":"Physiological Reports","volume":"13 3","pages":"e70205"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11802663/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143365488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microinjection of angiotensin II into zebrafish embryos induces transient dilation and elastin disruption of the dorsal aorta. 向斑马鱼胚胎显微注射血管紧张素 II 可诱导背主动脉一过性扩张和弹性蛋白断裂。
IF 2.2
Physiological Reports Pub Date : 2025-02-01 DOI: 10.14814/phy2.70259
Shota Tanifuji, Keiko Uchida, Genri Kawahara, Takashi Nakamura, Saki Iida, Yukiko K Hayashi, Utako Yokoyama
{"title":"Microinjection of angiotensin II into zebrafish embryos induces transient dilation and elastin disruption of the dorsal aorta.","authors":"Shota Tanifuji, Keiko Uchida, Genri Kawahara, Takashi Nakamura, Saki Iida, Yukiko K Hayashi, Utako Yokoyama","doi":"10.14814/phy2.70259","DOIUrl":"10.14814/phy2.70259","url":null,"abstract":"<p><p>The effects of angiotensin II (AngII) on blood vessel development and remodeling have been extensively investigated in mice and humans. However, its action on the vessels in the zebrafish remains largely unknown. To investigate whether AngII affects vascular morphology in vivo, we administered AngII into the endothelial-specific transgenic reporter zebrafish (Tg[kdrl:EGFP]) at the 1-cell stage. The average dorsal aortic diameter of five serial positions was significantly increased by 20% in AngII-injected zebrafish compared with buffer-injected controls at 5 days post-fertilization. Histological studies in AngII-injected zebrafish at 8 weeks post-fertilization showed that elastic fiber formation was partly attenuated, with enhanced matrix metalloproteinase-2 expression in the dorsal aorta without dilation. These results suggest that AngII induced transient aortic expansion in early larvae and may affect vascular elastic fiber formation in adult zebrafish. The use of the AngII-injected zebrafish model is a potential tool to dissect the mechanisms of disruption of elastic vascular wall formation in the aorta.</p>","PeriodicalId":20083,"journal":{"name":"Physiological Reports","volume":"13 4","pages":"e70259"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11848543/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143483915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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