Experimental Animals最新文献

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Optimization of culture-preservation methods to maintain developmental competence in porcine MII oocytes post-IVM. 猪MII卵母细胞体外培养保存方法的优化。
IF 2.2 4区 农林科学
Experimental Animals Pub Date : 2024-11-29 DOI: 10.1538/expanim.24-0107
Haruhisa Tsuji, Rei Maeyama, Yoko Kato
{"title":"Optimization of culture-preservation methods to maintain developmental competence in porcine MII oocytes post-IVM.","authors":"Haruhisa Tsuji, Rei Maeyama, Yoko Kato","doi":"10.1538/expanim.24-0107","DOIUrl":"https://doi.org/10.1538/expanim.24-0107","url":null,"abstract":"<p><p>After in vitro maturation (IVM) of porcine germinal vesicle (GV) oocytes, those that matured to the metaphase II (MII) stage were selected for further culture over a period of 24-48 h. Subsequently, these oocytes were either parthenogenetically activated or used for somatic cell nuclear transfer (SCNT) to evaluate their in vitro developmental competence. Parthenogenetically activated MII oocytes developed to the blastocyst stage after 42 h of continuous culture, whereas SCNT oocytes reached the blastocyst stage within 30 h of culture. These findings suggest that porcine MII oocytes retain their developmental competence after extended in vitro culture exceeding 30 h. This study highlights the potential of prolonged culture in enhancing the utility of MII-stage oocytes for livestock applications and possibly for future advancements in human infertility treatments.</p>","PeriodicalId":12102,"journal":{"name":"Experimental Animals","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142767466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dual-route administration of balanced anesthesia using medetomidine, midazolam, and butorphanol provides both suitable anesthetic depth and reduced tissue injury in rabbits. 使用美托咪定、咪达唑仑和丁吗啡诺双管齐下进行平衡麻醉,既能为兔子提供合适的麻醉深度,又能减少组织损伤。
IF 2.2 4区 农林科学
Experimental Animals Pub Date : 2024-11-23 DOI: 10.1538/expanim.24-0132
Risa Iwanaga, Kanako Sumi, Chizuko Kodama, Munekatsu Ita, Mohammad Ibrahim Qasimi, Jun Tamura, Ko Nakanishi, Yasuhiro Yoshida, Masami Morimatsu, Kayoko Matsumura, Teppei Nakamura
{"title":"Dual-route administration of balanced anesthesia using medetomidine, midazolam, and butorphanol provides both suitable anesthetic depth and reduced tissue injury in rabbits.","authors":"Risa Iwanaga, Kanako Sumi, Chizuko Kodama, Munekatsu Ita, Mohammad Ibrahim Qasimi, Jun Tamura, Ko Nakanishi, Yasuhiro Yoshida, Masami Morimatsu, Kayoko Matsumura, Teppei Nakamura","doi":"10.1538/expanim.24-0132","DOIUrl":"https://doi.org/10.1538/expanim.24-0132","url":null,"abstract":"<p><p>Medetomidine, midazolam, and butorphanol (MMB) anesthesia is the preferred choice for rodents but requires excess volume of intramuscular injection in rabbits, which can lead to muscular damage. This study aimed to evaluate a dual-route MMB administration via the intravenous and subcutaneous routes in rabbits. MMB was administered to male Kbs:JW rabbits with an intravenous injection of 0.2 mL/kg followed by a subcutaneous injection of 0.8 mL/kg, totaling 0.2 mg/kg medetomidine, 2.0 mg/kg midazolam, and 2.0 mg/kg butorphanol. We compared the anesthetic effects of this dual-route method with those of intramuscular administration. The dual-route method resulted in a shorter induction time and similar anesthetic duration compared with those of the intramuscular route. While it induced a temporary decrease in body temperature within 30 min post-injection, other vital signs, such as respiration rate, heart rate, and O<sub>2</sub> saturation, remained similar. Notably, unlike intramuscular administration, dual-route administration did not increase tissue injury marker levels. This dual-route MMB administration provided sufficient anesthetic depth during surgery, eliminating pain reflexes. Double-dose administration extended anesthetic duration but resulted in rare fatalities, indicating room for protocol improvement. In conclusion, the novel anesthetic method is preferable for injectable anesthesia in rabbits, providing rapid induction and sufficient anesthetic duration, while potentially minimizing muscle injury. This technique may be beneficial for both laboratory and companion animals and significantly enhance animal welfare in anesthesia by reducing the pain associated with injectable anesthesia.</p>","PeriodicalId":12102,"journal":{"name":"Experimental Animals","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142709669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adriamycin-induced nephropathy models: elucidating CKD pathophysiology and advancing therapeutic strategies. 阿霉素诱导的肾病模型:阐明慢性肾功能衰竭的病理生理学并推进治疗策略。
IF 2.2 4区 农林科学
Experimental Animals Pub Date : 2024-11-23 DOI: 10.1538/expanim.24-0133
Masaki Watanabe, Hayato R Takimoto, Nobuya Sasaki
{"title":"Adriamycin-induced nephropathy models: elucidating CKD pathophysiology and advancing therapeutic strategies.","authors":"Masaki Watanabe, Hayato R Takimoto, Nobuya Sasaki","doi":"10.1538/expanim.24-0133","DOIUrl":"https://doi.org/10.1538/expanim.24-0133","url":null,"abstract":"<p><p>The Adriamycin-induced nephropathy (AN) model plays a crucial role in advancing our understanding of and research on chronic kidney disease (CKD). This review outlines methodologies for generating AN models in mice and rats, discusses their pathophysiologic and molecular characteristics, highlights their advantages and limitations, describes therapeutic interventions that have been evaluated in these models, and presents future research perspectives. The AN model replicates key features observed in human CKD, such as proteinuria, podocyte injury, glomerulosclerosis, and tubulointerstitial fibrosis. Notably, genetic factors significantly influence the onset and severity of AN, with mutations in the Prkdc gene linked to nephrotoxicity and systemic toxicity. To evaluate therapeutic interventions for CKD, agents such as ACE inhibitors, corticosteroids, and SGLT2 inhibitors have been tested in the AN model, demonstrating promising renoprotective effects. However, the systemic toxicity of Adriamycin and variability across models pose limitations, highlighting the need for caution when translating findings to human CKD. Future advancements in genetic engineering and the application of CRISPR-Cas9 technology are expected to improve the fidelity of AN models to human disease. Additionally, Discovery of biomarkers by using the AN model enables us to improve early diagnosis. These efforts are anticipated to deepen our understanding of CKD pathophysiology and contribute to developing more effective diagnostic tools and targeted therapies.</p>","PeriodicalId":12102,"journal":{"name":"Experimental Animals","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142709663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Morphological analysis of autophagy in axonal degeneration in gracile axonal dystrophy mice. 从形态学角度分析自噬在鲻鱼轴索营养不良症小鼠轴索变性中的作用。
IF 2.2 4区 农林科学
Experimental Animals Pub Date : 2024-11-13 DOI: 10.1538/expanim.24-0041
Yusuke Tokuhara, Shinichiro Ukon, Shohei Watanabe, Yoshiki Tatsumi, Hiroo Yoshikawa, Masaki Ohmuraya, Takashi Kimura
{"title":"Morphological analysis of autophagy in axonal degeneration in gracile axonal dystrophy mice.","authors":"Yusuke Tokuhara, Shinichiro Ukon, Shohei Watanabe, Yoshiki Tatsumi, Hiroo Yoshikawa, Masaki Ohmuraya, Takashi Kimura","doi":"10.1538/expanim.24-0041","DOIUrl":"https://doi.org/10.1538/expanim.24-0041","url":null,"abstract":"<p><p>Gracile axonal dystrophy (gad) mutant mice present with autosomal recessive inherited sensory ataxia in the early stages, followed by age-dependent motor ataxia. This phenotype is caused by a mutation in the ubiquitin carboxyl-terminal hydrolase isozyme L1 (UCH-L1) gene and leads to a lack of expression of UCH-L1 protein, which is related with the autophagy pathway and the ubiquitin-proteasome system (UPS). To elucidate the pathophysiology of abnormal protein accumulation in gad mice, we focused on macroautophagy. Using electron microscopy, we detected a double-membrane structure, which was characteristic of autophagosomes, in gad mice. In addition, on immunohistochemistry to investigate the expression levels of autophagy-related proteins in the gracile nuclei of the gad mouse, we found upregulation of LC3 and p62 but not LAMP-2A. These results suggested that a lack of UCH-L1 expression might induce the formation of autophagosomes, but the resulting autophagy flux might be disturbed.</p>","PeriodicalId":12102,"journal":{"name":"Experimental Animals","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142617015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transcriptomics and metabolomics analysis of the pathogenesis of a novel hyperlipidemia-susceptible rat strain. 新型高脂血症易感大鼠品系发病机制的转录组学和代谢组学分析
IF 2.2 4区 农林科学
Experimental Animals Pub Date : 2024-11-05 DOI: 10.1538/expanim.24-0080
Xiufeng Ai, Qian Zhang, Quanxin Ma, Mingsun Fang, Keyan Zhu, Yueqin Cai, Qinqin Yang, Lizong Zhang
{"title":"Transcriptomics and metabolomics analysis of the pathogenesis of a novel hyperlipidemia-susceptible rat strain.","authors":"Xiufeng Ai, Qian Zhang, Quanxin Ma, Mingsun Fang, Keyan Zhu, Yueqin Cai, Qinqin Yang, Lizong Zhang","doi":"10.1538/expanim.24-0080","DOIUrl":"https://doi.org/10.1538/expanim.24-0080","url":null,"abstract":"<p><p>To investigate the pathogenesis of hyperlipidemia in Wistar-SD Hypercholesterolemia (WSHc) rats and clarify the genetic and biological characteristics. Six 7-8-week-old WSHc rats were fed a high-fat diet (HFD), and another six were fed ordinary feed, with age-matched Wistar rats as the control group under the same treatment. After 16 weeks, serum lipid levels were measured. A transcriptomic analysis of the differences in gene expression of the liver related to cholesterol metabolism was conducted, and 119 differentially expressed genes were discovered through bioinformatics analysis and molecular biology verification. UHPLC-Q-TOF/MS was applied for lipidomic analysis of serum samples from each group. WSHc rats developed dyslipidemia after a high-fat diet was induced. Investigation of the gene profiles using the protein-protein interaction network and one-cluster clustering analysis identified SREBF1 as a HUB gene and NR1d1 as an independent key gene. SREBF1 and NR1d1 were further validated in molecular biology experiments, which was consistent with the transcriptomic results. Lipid metabolomics analysis identified seven lipid subclasses and 84 lipid molecules. The metabolic profiles of serum lipid media of the WSHc + HFD and WSHc + SC groups were significantly different compared to that of the control group by 62 and 70 lipid molecules, respectively. Differential metabolites were produced via sphingolipid and glycerophospholipid metabolism. A stable model of hypercholesterolemia in WSHc rats can be generated by feeding on a high-fat diet, and the pathogenesis mainly involves two key genes, SREBF1 and NR1d1, and the sphingolipid and glycerophospholipid metabolism pathways.</p>","PeriodicalId":12102,"journal":{"name":"Experimental Animals","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142575520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-frequency ultrasound for assessing the renal characteristics of spontaneous type 2 diabetes mellitus db/db mice. 高频超声评估自发性 2 型糖尿病 db/db 小鼠的肾脏特征。
IF 2.2 4区 农林科学
Experimental Animals Pub Date : 2024-10-25 DOI: 10.1538/expanim.24-0114
Jiazhi Cao, Hao Feng, Lutong Li, Wenwu Ling, Hong Wang
{"title":"High-frequency ultrasound for assessing the renal characteristics of spontaneous type 2 diabetes mellitus db/db mice.","authors":"Jiazhi Cao, Hao Feng, Lutong Li, Wenwu Ling, Hong Wang","doi":"10.1538/expanim.24-0114","DOIUrl":"https://doi.org/10.1538/expanim.24-0114","url":null,"abstract":"<p><p>There are few ultrasonographic studies on the spontaneous T2DM db/db mouse. Our objective was to dynamically investigate and assess renal morphological and hemodynamic changes in spontaneous type 2 diabetes mellitus db/db mice through high-frequency ultrasound. Eighteen male db/db mice (the model group) and twelve male db/+ mice (the control group) were included. Body weight and fasting blood glucose were measured at the ages of 8, 16 and 32 weeks. High-frequency ultrasound examinations were conducted at the same ages. Compared with those in the control group, H&E and Masson staining revealed pathological changes in the renal tissue of the db/db mice at 16 weeks of age, and the lesions were significantly aggravated at 32 weeks of age. The body mass of the mice in the model group increased significantly at 8, 16 and 32 weeks of age, and the kidney volume measured by ultrasound also increased with age. Compared with those of the control group, the blood flow scores determined via power Doppler were significantly different. The peak systolic velocity (PSV), end diastolic velocity (EDV), and resistive index (RI) of the renal artery and the PSV, EDV, and RI of the segmental artery were significantly different at the 16th week compared with those that at the eighth week. The results of high-frequency ultrasound revealed that the renal hemodynamics of db/db mice changed at the sixteen weeks.</p>","PeriodicalId":12102,"journal":{"name":"Experimental Animals","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142497650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Protective effect of 8-Gingerol, a potent constituent of ginger, on acute lung injury following hemorrhagic shock in rats. 生姜的有效成分 8-姜酚对大鼠失血性休克后急性肺损伤的保护作用。
IF 2.2 4区 农林科学
Experimental Animals Pub Date : 2024-10-23 Epub Date: 2024-07-02 DOI: 10.1538/expanim.23-0178
Peng Lian, Zhirong Huan, Yan Wang, Hao Yao, Shuguang Han, Xin Ge
{"title":"Protective effect of 8-Gingerol, a potent constituent of ginger, on acute lung injury following hemorrhagic shock in rats.","authors":"Peng Lian, Zhirong Huan, Yan Wang, Hao Yao, Shuguang Han, Xin Ge","doi":"10.1538/expanim.23-0178","DOIUrl":"10.1538/expanim.23-0178","url":null,"abstract":"<p><p>Acute lung injury (ALI) is a common complication after hemorrhagic shock (HS), which is associated with HS-induced inflammatory response, oxidative stress, and cell apoptosis. This study aimed to investigate the therapeutic efficacy of 8-Gingerol, a constituent extracted from ginger, on ALI after HS in rats. We established a fixed press hemorrhage model in SD rats, in which the HS rats were administered 15 or 30 mg/kg of 8-Gingerol by intraperitoneal injection before fluid resuscitation. Hematoxylin and eosin (H&E) and TUNEL staining were performed to evaluate histopathological changes and cell apoptosis in lung tissues, respectively. Quantitative reverse transcription PCR and western blot were used to measure gene and protein expression. Pro-inflammatory cytokines were detected by ELISA kits. Immunofluorescence of myeloperoxidase was used to evaluate neutrophil infiltration. 8-Gingerol reduced pulmonary edema, alveolar wall thickness, and cell apoptosis in lung tissues of HS rats. Regarding inflammatory responses, 8-Gingerol attenuated neutrophil infiltration in lung tissues, reduced pro-inflammatory cytokines in lung tissues and bronchoalveolar lavage fluid, and decreased the levels of NLR family, pyrin domain containing 3 (NLRP3), PYD and CARD domain containing (ASC), and Cleaved-Caspase 1 (Asp296), p20 (Cleaved Caspase 1) in lung tissues. Additionally, 8-Gingerol ameliorated oxidative stress in lung tissues as evidenced by increased antioxidant indicators (SOD and GSH) and decreased production of malondialdehyde (MDA) and reactive oxygen species (ROS). The therapeutic effects of 8-Gingerol were associated with the regulation of mitogen-activated protein kinase (MAPK) and Nrf2/HO-1 pathways. These results support 8-Gingerol as a promising drug for the treatment of HS-induced ALI.</p>","PeriodicalId":12102,"journal":{"name":"Experimental Animals","volume":" ","pages":"446-457"},"PeriodicalIF":2.2,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11534488/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141497536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Relationship between aging and periodontal disease severity in gauge-raised cynomolgus monkeys (Macaca fascicularis). 规养猕猴(Macaca fascicularis)的衰老与牙周病严重程度之间的关系。
IF 2.2 4区 农林科学
Experimental Animals Pub Date : 2024-10-23 Epub Date: 2024-05-30 DOI: 10.1538/expanim.23-0141
Takaharu Sone, Motohiro Komaki, Tadashi Sankai, Hiroko Hiramine, Kiyoko Watanabe, Nobushiro Hamada, Toshiro Kodama
{"title":"Relationship between aging and periodontal disease severity in gauge-raised cynomolgus monkeys (Macaca fascicularis).","authors":"Takaharu Sone, Motohiro Komaki, Tadashi Sankai, Hiroko Hiramine, Kiyoko Watanabe, Nobushiro Hamada, Toshiro Kodama","doi":"10.1538/expanim.23-0141","DOIUrl":"10.1538/expanim.23-0141","url":null,"abstract":"<p><p>The study aimed to evaluate the periodontal disease status in different age groups and clarify the relationship between aging and the severity of periodontal disease. The test animals were cynomolgus monkeys that were born and raised at Tsukuba Primate Research Center, National Institutes of Biomedical Innovation, Health and Nutrition. The participants were divided into three groups: young (5-10 years old), middle (10-19 years old), and old (≥20 years old). The Plaque Index (PLI), Gingival Index (GI), Probing pocket depth (PPD), and Bleeding on probing (BOP) were used for the periodontal examination. Representative teeth were also examined. Polymerase chain reaction (PCR) was used to identify Porphyromonas macacae in dental plaque. Multiple comparisons and regression analyses were used to analyze the relationship between each age group and each oral examination index. Statistically significant differences were found between the age groups and periodontal examination index. Multiple regression analysis revealed that age was strongly correlated with each oral examination index. Based on these results, oral examinations of cynomolgus monkeys kept in the same environment confirmed an association between aging and periodontal disease severity. Monkeys at this facility are expected to serve as new experimental models for elucidating the mechanisms underlying the progression of age-related periodontal disease.</p>","PeriodicalId":12102,"journal":{"name":"Experimental Animals","volume":" ","pages":"390-398"},"PeriodicalIF":2.2,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11534493/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141175181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Beta-sitosterol mitigates cognitive deficit and hippocampal neurodegeneration in mice with trimethyltin-induced toxicity. β-谷甾醇可减轻三甲基锡诱导毒性小鼠的认知缺陷和海马神经退行性变。
IF 2.2 4区 农林科学
Experimental Animals Pub Date : 2024-10-23 Epub Date: 2024-06-28 DOI: 10.1538/expanim.24-0021
Nurinee Dolrahman, Wachiryah Thong-Asa
{"title":"Beta-sitosterol mitigates cognitive deficit and hippocampal neurodegeneration in mice with trimethyltin-induced toxicity.","authors":"Nurinee Dolrahman, Wachiryah Thong-Asa","doi":"10.1538/expanim.24-0021","DOIUrl":"10.1538/expanim.24-0021","url":null,"abstract":"<p><p>The present study investigated the neural health benefit of beta-sitosterol (BSS) against trimethyltin (TMT)-induced neurodegeneration in mice. Forty male Institute of Cancer Research (ICR) mice were randomly divided into Sham-veh, TMT-veh, TMT-BSS50, and TMT-BSS100. A one-time intraperitoneal injection of 2.6 mg/kg of TMT was given to mice in TMT groups. Vehicle (veh), BSS 50 mg/kg or BSS 100 mg/kg were orally given for 2 weeks. Spatial learning and memory were evaluated. Brain oxidative status, hippocampal neuropathology, and reactive astrocytes were done. White matter pathology was also evaluated. The results indicated the massy effect of TMT on induced motor ability and spatial memory deficits in accordance with increased neuronal degeneration in Cornus ammonis (CA) 1, CA3, and dentate gyrus (DG) and internal capsule white matter damage. TMT also induced the reduction of reactive astrocytes in CA1 and DG. Brain's catalase activity was significantly reduced by TMT, but not in mice with BSS treatments. Both doses of BSS treatment exhibited improvement in motor ability and spatial memory deficits in accordance with the activation of reactive astrocytes in CA1, CA3, and DG. However, they successfully prevented the increase of neuronal degeneration in CA1 found only with the BSS dose of 100 mg/kg, and it was indicated as the effective dose for neuroprotection in the vulnerable brain area. This study demonstrated mitigative effects of BSS against motor ability and memory deficits with neural health benefits, including a protective effect against CA1 neurodegeneration and a nurturing effect on hippocampal reactive astrocytes.</p>","PeriodicalId":12102,"journal":{"name":"Experimental Animals","volume":" ","pages":"433-445"},"PeriodicalIF":2.2,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11534485/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141467170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ectodysplasin-A2 receptor (EDA2R) knockdown alleviates myocardial ischemia/reperfusion injury through inhibiting the activation of the NF-κB signaling pathway. 通过抑制 NF-κB 信号通路的激活,敲除 EDA2R 可减轻心肌缺血再灌注损伤。
IF 2.2 4区 农林科学
Experimental Animals Pub Date : 2024-10-23 Epub Date: 2024-05-25 DOI: 10.1538/expanim.24-0020
Zhi-Hui Guan, Di Yang, Yi Wang, Jia-Bin Ma, Guo-Nian Wang
{"title":"Ectodysplasin-A2 receptor (EDA2R) knockdown alleviates myocardial ischemia/reperfusion injury through inhibiting the activation of the NF-κB signaling pathway.","authors":"Zhi-Hui Guan, Di Yang, Yi Wang, Jia-Bin Ma, Guo-Nian Wang","doi":"10.1538/expanim.24-0020","DOIUrl":"10.1538/expanim.24-0020","url":null,"abstract":"<p><p>Ischemia/reperfusion (I/R) is a pathological process that occurs in numerous organs and is often associated with severe cellular damage and death. Ectodysplasin-A2 receptor (EDA2R) is a member of the TNF receptor family that has anti-inflammatory and antioxidant effects. However, to the best of our knowledge, its role in the progression of myocardial I/R injury remains unclear. The present study aimed to investigate the role of EDA2R during myocardial I/R injury and the molecular mechanisms involved. In vitro, dexmedetomidine (DEX) exhibited a protective effect on hypoxia/reoxygenation (H/R)-induced cardiomyocyte injury and downregulated EDA2R expression. Subsequently, EDA2R silencing enhanced cell viability and reduced the apoptosis of cardiomyocytes. Furthermore, knockdown of EDA2R led to an elevated mitochondrial membrane potential (MMP), repressed the release of Cytochrome C and upregulated Bcl-2 expression. EDA2R knockdown also resulted in downregulated expression of Bax, and decreased activity of Caspase-3 and Caspase-9 in cardiomyocytes, reversing the effects of H/R on mitochondria-mediated apoptosis. In addition, knockdown of EDA2R suppressed H/R-induced oxidative stress. Mechanistically, EDA2R knockdown inactivated the NF-κB signaling pathway. Additionally, downregulation of EDA2R weakened myocardial I/R injury in mice, as reflected by improved left ventricular function and reduced infarct size, as well as suppressed apoptosis and oxidative stress. Additionally, EDA2R knockdown repressed the activation of NF-κB signal in vivo. Collectively, knockdown of EDA2R exerted anti-apoptotic and antioxidant effects against I/R injury in vivo and in vitro by suppressing the NF-κB signaling pathway.</p>","PeriodicalId":12102,"journal":{"name":"Experimental Animals","volume":" ","pages":"376-389"},"PeriodicalIF":2.2,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11534487/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141155015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","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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