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Perceptual and hypoalgesic responses to submaximal knee extension exercise with different pressures and modes of blood flow restriction: Effect of estimated muscle metabolites. 不同压力和血流限制模式下的次最大膝关节伸展运动的知觉和镇痛反应:估计肌肉代谢物的影响
IF 2.2 4区 医学
Physiology international Pub Date : 2025-07-15 DOI: 10.1556/2060.2025.00637
Yujiro Yamada, Ryo Kataoka, William B Hammert, Jun Seob Song, Anna Kang, Witalo Kassiano, Jeremy P Loenneke
{"title":"Perceptual and hypoalgesic responses to submaximal knee extension exercise with different pressures and modes of blood flow restriction: Effect of estimated muscle metabolites.","authors":"Yujiro Yamada, Ryo Kataoka, William B Hammert, Jun Seob Song, Anna Kang, Witalo Kassiano, Jeremy P Loenneke","doi":"10.1556/2060.2025.00637","DOIUrl":"https://doi.org/10.1556/2060.2025.00637","url":null,"abstract":"<p><strong>Purpose: </strong>To investigate the effects of exercise-induced metabolites on the perceptions of pain and fatigue.</p><p><strong>Method: </strong>Fifty-three adults completed six visits. The first visit involved multiple baseline tests, including a blood-flow-restricted exercise performance test (i.e., 2 sets of knee extension to task-failure at 30% 1RM with 80% arterial occlusion pressure [AOP]). In subsequent visits, participants performed five experimental conditions in a randomized order: 1) time-matched, non-exercise control (Control) and four low-load exercise conditions with either 2) 80%AOP (LL+80%), 3) 40%AOP (LL+40%), 4) intermittent 80%AOP (LL+80%Int), or 5) no blood flow restriction (0 mmHg; LL). Three-minute post-exercise circulatory occlusion (PECO) was employed to assess the effect of pooled muscle metabolites on perceived pain and fatigue and pain sensitivity (via pressure pain threshold). The results from liner mixed model are presented as mean [95% confidence interval].</p><p><strong>Results: </strong>Condition-by-time interactions were found for perceived pain (P < 0.001) and fatigue (P < 0.001). LL+80% elicited higher increase in thigh pain (2.7 [2.2, 3.1] AU) and fatigue (2.1 [1.7, 2.5] AU) compared to LL+40%, LL+80%Int, and LL. Pain and fatigue did not change differently during PECO but declined three minutes post-PECO in exercise conditions (except fatigue in LL+80%Int). There was evidence of an interaction for pressure pain threshold of the tibialis anterior but not the forearm.</p><p><strong>Conclusion: </strong>Continuous blood flow restriction with higher pressure (80%AOP) augmented the pain and fatigue perceptions from submaximal unilateral knee extension exercise, arguably through muscle metabolite accumulation (estimated by PECO). Conflicting evidence existed for blood flow restricted exercise-induced hypoalgesia, possibly confounded by PECO.</p>","PeriodicalId":20058,"journal":{"name":"Physiology international","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144643107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The therapeutic effects of genistein in rats with epilepsy by influencing mitochondrial biogenesis and regulating apoptosis in brain tissue. 染料木素通过影响线粒体生物发生和调节脑组织凋亡对癫痫大鼠的治疗作用。
IF 2.2 4区 医学
Physiology international Pub Date : 2025-07-15 DOI: 10.1556/2060.2025.00641
Afnan S Almarwani, Shatha Al-Blowi, Maha Z Albalawi, Manahel Ab Alatawi, Sultan M Alanazi, Hanan M Hassan, Mohammed M H Al-Gayyar
{"title":"The therapeutic effects of genistein in rats with epilepsy by influencing mitochondrial biogenesis and regulating apoptosis in brain tissue.","authors":"Afnan S Almarwani, Shatha Al-Blowi, Maha Z Albalawi, Manahel Ab Alatawi, Sultan M Alanazi, Hanan M Hassan, Mohammed M H Al-Gayyar","doi":"10.1556/2060.2025.00641","DOIUrl":"https://doi.org/10.1556/2060.2025.00641","url":null,"abstract":"<p><strong>Purpose: </strong>Epilepsy is a widespread, long-term neurological condition triggered by an overabundance of electrical activity from the neurons in the brain. Genistein, a natural isoflavone found in soybeans, can prevent chronic diseases such as cardiovascular disease and osteoporosis. We aimed to investigate the potential protective effects of genistein on epilepsy using rat models through behavior analysis and investigation of key pathways, including antioxidant activity (Nrf2 and HO-1), promoting mitochondrial biogenesis (TFAM), and reducing brain tissue apoptosis (BCL2, BAX, and caspases).</p><p><strong>Main methods: </strong>PTZ was used to induce epilepsy in rats, and then they were treated with genistein. The hippocampus sections were stained with Nissl stain, and others were stained with anti-TFAM antibodies. Furthermore, TFAM, Nrf2, HO-1, BCL2, BAX, and caspases-3/8/9 gene expression and protein levels were quantified using quantitative real-time polymerase chain reaction (qRT-PCR) and complementary biochemical/functional assays.</p><p><strong>Results: </strong>Rats treated with genistein displayed notable progress in their behavior during behavioral tests. Sections stained with Nissl revealed that genistein increased the staining intensity of Nissl granules in the cerebral cortex. Additionally, genistein increased the expression of TFAM, Nrf2, HO-1, and BCL2, which reduced levels of BAX and caspase-3/8/9.</p><p><strong>Conclusions: </strong>Genistein safeguards against epilepsy in rats by enhancing their behavior and reinstating normal neuron structure. Its protective benefits may stem from its potential to boost antioxidant activity and promote mitochondrial biogenesis, which in turn decreases cell apoptosis.</p>","PeriodicalId":20058,"journal":{"name":"Physiology international","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144643108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum to: Antarctic krill oil alleviates exercise-induced muscle inflammation by modulating TLR4/MyD88/NF-κB signaling in mice. 南极磷虾油通过调节小鼠TLR4/MyD88/NF-κB信号通路减轻运动性肌肉炎症。
IF 2.2 4区 医学
Physiology international Pub Date : 2025-06-16 DOI: 10.1556/2060.2025.11527
Yilong Liu, Simeng Yang, Zetian Wang, Ying Wu
{"title":"Corrigendum to: Antarctic krill oil alleviates exercise-induced muscle inflammation by modulating TLR4/MyD88/NF-κB signaling in mice.","authors":"Yilong Liu, Simeng Yang, Zetian Wang, Ying Wu","doi":"10.1556/2060.2025.11527","DOIUrl":"https://doi.org/10.1556/2060.2025.11527","url":null,"abstract":"","PeriodicalId":20058,"journal":{"name":"Physiology international","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144310285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Auditory threshold detection in Guinea pigs using chronically implanted electrodes and quasi auditory steady state responses. 使用长期植入电极和准听觉稳态反应的豚鼠听觉阈值检测。
IF 2.2 4区 医学
Physiology international Pub Date : 2025-05-30 DOI: 10.1556/2060.2025.00599
Erdogan Bulut, Cem Uzun, Jorge Bohórquez, Adrien A Eshraghi, Thomas R Van De Water, Ozcan Ozdamar
{"title":"Auditory threshold detection in Guinea pigs using chronically implanted electrodes and quasi auditory steady state responses.","authors":"Erdogan Bulut, Cem Uzun, Jorge Bohórquez, Adrien A Eshraghi, Thomas R Van De Water, Ozcan Ozdamar","doi":"10.1556/2060.2025.00599","DOIUrl":"https://doi.org/10.1556/2060.2025.00599","url":null,"abstract":"<p><strong>Background/aim: </strong>This study aimed to compare electrophysiological hearing thresholds in guinea pigs exposed to intra-cochlear trauma using the continuous loop deconvolution averaging method (CLAD) and quasi-auditory steady state responses (QASSR).</p><p><strong>Material and methods: </strong>Eight guinea pigs were implanted with electrodes at the lambda point. Intra-cochlear trauma was induced via electrode insertion. Hearing thresholds and amplitudes at 0.5, 1, 4, and 16 kHz were recorded using CLAD and QASSR methods. Recordings from the lambda electrode were compared with those from a conventional retro-auricular needle electrode.</p><p><strong>Results: </strong>The lambda electrode demonstrated significantly lower mean auditory thresholds at all tested frequencies compared to the retro-auricular needle electrode in both trauma and non-trauma groups (P < 0.05). Amplitude comparisons revealed statistically significant differences at 1 kHz in the trauma group, and at 4 and 16 kHz in both trauma and non-trauma groups (P < 0.05).</p><p><strong>Conclusion: </strong>The QASSR technique, coupled with chronic lambda electrode implantation, provides an effective method for estimating hearing loss induced by intra-cochlear trauma in guinea pigs.</p>","PeriodicalId":20058,"journal":{"name":"Physiology international","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144187615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Selection criteria in the talent identification of triathlon. 铁人三项人才鉴定中的选拔标准。
IF 2.2 4区 医学
Physiology international Pub Date : 2025-05-27 DOI: 10.1556/2060.2025.00519
Zsofia Papai, Zsolt Szakaly, Marta Wilhelm
{"title":"Selection criteria in the talent identification of triathlon.","authors":"Zsofia Papai, Zsolt Szakaly, Marta Wilhelm","doi":"10.1556/2060.2025.00519","DOIUrl":"https://doi.org/10.1556/2060.2025.00519","url":null,"abstract":"<p><p>Triathlon is a very complex sport, as the athlete has to master the characteristics of three sports (swimming, cycling and running), and the tasks of coaches are increased by the need to get the most out of all three. This sport improves endurance, has a positive effect on muscle development, movement coordination, breathing, and circulation.For talent identification factors determining the performance in triathlon are essential (physiological, anthropometric, psychosocial and tactical factors).Scientific literature concerning performance in triathlon sport is rather scarce. Although there are some studies in this field, there is little comprehensive literature analyzing training of youth athletes. The aim of our research was (i) to conduct a targeted literature review of the body composition and performance of youth triathletes and (ii) comparing results with those of elite adults, (iii) determining factors playing a prominent role in the selection and performance of triathletes.The results of our research reveal that factors like the appropriate competition age (approx. 28-30 years for both sexes), anthropometric parameters (it is necessary to take into account the distance the athlete covers) and performance criteria (the most important is VO2max) are essential for successful selection and subsequent success.In the world of triathlon constant regulatory changes and the need to adapt new competitive demands necessitate keeping our knowledge up to date.</p>","PeriodicalId":20058,"journal":{"name":"Physiology international","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144161263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of stretch load and pretension on the mechanical efficiency of the quadriceps femoris muscle-tendon unit. 拉伸负荷和预张力对股四头肌-肌腱单元机械效率的影响。
IF 2.2 4区 医学
Physiology international Pub Date : 2025-05-16 DOI: 10.1556/2060.2025.00591
Bálint Kovács, Örs Sebestyén, Leonidas Petridis, Ye Jingyi, Yang Song, István Kóbor, Yaodong Gu, József Tihanyi
{"title":"Influence of stretch load and pretension on the mechanical efficiency of the quadriceps femoris muscle-tendon unit.","authors":"Bálint Kovács, Örs Sebestyén, Leonidas Petridis, Ye Jingyi, Yang Song, István Kóbor, Yaodong Gu, József Tihanyi","doi":"10.1556/2060.2025.00591","DOIUrl":"https://doi.org/10.1556/2060.2025.00591","url":null,"abstract":"<p><p>The mechanical efficiency of the quadriceps femoris muscle-tendon unit likely depends on its structural and mechanical properties. Therefore, the purpose of this study was to assess the mechanical efficiency in vivo under various stretch-shortening cycle conditions and to investigate how the morphological and mechanical properties of the quadriceps femoris influence mechanical efficiency.We used MRI to measure quadriceps femoris muscle and tendon morphological properties in young females (n = 9), and we determined mechanical efficiency during stretch-shortening cycle contractions using computer-controlled dynamometer. Testing protocol included contractions with moderate and maximal pretension level and stretching loads of 20 and 100J.Greater mechanical efficiency was associated with larger knee flexion angles and increased positive work under moderate pretension levels with both 20 J (r = 0.67, P = 0.045; r = 0.82, P = 0.007) and 100 J stretch loads (r = 0.87, P = 0.006; r = 0.82, P = 0.007).These findings suggest that lower stretching loads enhance muscle-tendon interaction efficiency by favoring tendon elongation during muscle-tendon unit lengthening, resulting in higher mechanical efficiency. No morphological or mechanical parameter of the muscle-tendon unit were linked to mechanical efficiency, suggesting that efficiency may depend more on muscle activation patterns than on structure.</p>","PeriodicalId":20058,"journal":{"name":"Physiology international","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144078158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fatigue-induced changes in muscle coordination and their impact on performance decline during the 400-meter sprint. 疲劳引起的肌肉协调变化及其对400米短跑成绩下降的影响。
IF 2.2 4区 医学
Physiology international Pub Date : 2025-05-14 DOI: 10.1556/2060.2025.00588
Kun Li, Wenlie Chen
{"title":"Fatigue-induced changes in muscle coordination and their impact on performance decline during the 400-meter sprint.","authors":"Kun Li, Wenlie Chen","doi":"10.1556/2060.2025.00588","DOIUrl":"https://doi.org/10.1556/2060.2025.00588","url":null,"abstract":"<p><strong>Introduction: </strong>Fatigue accumulation in the final 100 m of a 400-m sprint impairs neuromuscular coordination and biomechanics, often resulting in performance decline. This study investigated how fatigue affects lower-limb coordination, joint mechanics, and recovery patterns in competitive sprinters.</p><p><strong>Methods: </strong>A randomized controlled trial was conducted with 30 trained male Chinese 400-m sprinters (age: 29.8 ± 2.7 years), allocated into control (n = 15) and experimental (n = 15) groups. The experimental group completed five 80-m maximal sprints with decreasing rest intervals before running a 400-m sprint; the control group performed only the 400-m sprint. Kinematic and EMG data were recorded during the final 100 m. Recovery measures-Rating of Perceived Exertion (RPE), Jump Height, Peak Force, and Peak Power-were assessed at 30 min, 1 h, 3 h, and 36 h post-sprint. Data were analysed using two-way ANOVA and paired t-tests.</p><p><strong>Results: </strong>Fatigue significantly increased stride variability in the experimental group from 0.022 ± 0.010 m (Session I) to 0.035 ± 0.012 m (Session II, P < 0.0001), while hip flexion decreased from 33.1 ± 4.5° to 26.7 ± 3.9° (P = 0.0012), and CRP rose from 15.6 ± 2.9° to 24.1 ± 4.2° (P = 0.002). EMG activation declined in key muscles, including Rectus Femoris (0.28 ± 0.05 to 0.23 ± 0.05, P = 0.0035) and Soleus (0.21 ± 0.05 to 0.18 ± 0.04, P = 0.0003). RPE increased from 10.9 ± 2.05 to 19.5 ± 1.20 at 30 min post-sprint (P < 0.0001), with Jump Height decreasing from 49.5 ± 5.02 cm to 34.8 ± 5.10 cm (P < 0.0001), Peak Force from 17.8 ± 1.28 to 15.1 ± 1.42 N kg-1 (P = 0.0012), and Peak Power from 65.7 ± 6.03 to 50.4 ± 4.95 W kg-1 (P < 0.0001).</p><p><strong>Conclusion: </strong>Fatigue in the final sprint phase significantly impairs joint coordination, muscle activation, and power output. These findings highlight the need for targeted fatigue-resistance training and individualized recovery protocols. A limitation is the all-male sample, which may affect generalizability.</p>","PeriodicalId":20058,"journal":{"name":"Physiology international","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144079551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Overview and expression of GLUT in gestational diabetes mellitus: A literature review. 妊娠期糖尿病供过于求及其表达:文献综述。
IF 2.2 4区 医学
Physiology international Pub Date : 2025-05-14 DOI: 10.1556/2060.2025.00347
Betsy Corina Sosa Garcia, Nancy Berenice Lucero Orozco, Daniela Arriaga Navarrete, Jorge Yahir Vargas Zagal, Jorge Gutiérrez Lezama, Hugo Mendieta Zerón
{"title":"Overview and expression of GLUT in gestational diabetes mellitus: A literature review.","authors":"Betsy Corina Sosa Garcia, Nancy Berenice Lucero Orozco, Daniela Arriaga Navarrete, Jorge Yahir Vargas Zagal, Jorge Gutiérrez Lezama, Hugo Mendieta Zerón","doi":"10.1556/2060.2025.00347","DOIUrl":"https://doi.org/10.1556/2060.2025.00347","url":null,"abstract":"<p><strong>Introduction: </strong>Gestational diabetes mellitus (GDM) is an endocrine-metabolic disorder that develops during pregnancy. Glucose transporters (GLUTs), which facilitate the transport of glucose across the plasma membrane (facilitated diffusion) play a key role in the progression of this disease.</p><p><strong>Objective: </strong>This study aimed to analyze the general characteristics and expression of GLUTs in GDM.</p><p><strong>Methods: </strong>This systematic review was performed following the PRISMA guidelines. A literature search was performed without language restrictions using the PubMed, Web of Science, Redalyc, Google Scholar, Cochrane, and Scopus databases between 2010 and 2023 using the keywords GLUT, Gestational diabetes mellitus, GDM and GLUT, Glucose metabolism and GLUT, Glucose receptors to identify most human studies, as the majorityof studies use murine models, focusing on a positive diagnosis of GDM.</p><p><strong>Results: </strong>A total of 36 articles were included in this review. Of the 36 articles, 21 described the general characteristics of GLUTs, and 15 were scientific reports (12 in humans and 3 in animals). The studies showed that interleukin-2, tumor necrosis factor-α, and leptin correlated negatively with the expression of GLUT1 in patients with GDM. The three murine studies showed that hyperglycemia was associated with decreased GLUT2 expression.</p><p><strong>Conclusions: </strong>Evidence of GLUT expression at the gestational stage provides a better understanding of fetal life conditions and how they contribute to the development of GDM. Therefore, analyzing GLUT expression serves as a preventive measure.</p>","PeriodicalId":20058,"journal":{"name":"Physiology international","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144078823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Antarctic krill oil alleviates exercise-induced muscle inflammation by modulating TLR4/MyD88/NF-κB signaling in mice. 南极磷虾油通过调节小鼠TLR4/MyD88/NF-κB信号通路减轻运动性肌肉炎症。
IF 2.2 4区 医学
Physiology international Pub Date : 2025-05-08 DOI: 10.1556/2060.2025.00527
Yilong Liu, Simeng Yang, Zetian Wang, Ying Wu
{"title":"Antarctic krill oil alleviates exercise-induced muscle inflammation by modulating TLR4/MyD88/NF-κB signaling in mice.","authors":"Yilong Liu, Simeng Yang, Zetian Wang, Ying Wu","doi":"10.1556/2060.2025.00527","DOIUrl":"https://doi.org/10.1556/2060.2025.00527","url":null,"abstract":"<p><p>Exercise-induced fatigue and inflammation can significantly impair athletic performance and recovery. Effective strategies to mitigate these effects are critical for athletes and those engaged in high-intensity physical activities. Anti-inflammatory properties have been associated with Antarctic krill oil (AKO), which contains n-3 polyunsaturated fatty acids (n-3 PUFA) such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). After exhaustive exercise, this study examined how 4-week AKO supplementation affected skeletal muscle inflammation and the TLR4/MyD88/NF-κB signaling pathways in mice. Sixty male SPF-grade 8-week-old C57BL/6J mice were randomly assigned to four groups: soybean oil control (BO-C), AKO control (KO-C), soybean oil exercise (BO-E), and AKO exercise (KO-E). The KO groups received 200 mg/kg/BW AKO intragastrically for four weeks, while the BO groups received an equivalent volume of soybean oil. After the supplementation period, the exercise groups underwent a strenuous treadmill exercise. Grasping force was measured at 0 h, 6 h, 24 h, 48 h, and 72 h post-exercise, and tissue samples were analyzed histologically and biochemically. Results showed that AKO significantly reduced body weight and enhanced exercise endurance and recovery. Furthermore, serum CK, LDH and CRP levels, as well as muscle TNF-α concentrations, and TLR4 and MyD88 protein expressions were lower in the KO-E group than in the BO-E group. As a result of modulating the TLR4/MyD88/NF-κB signaling pathway through AKO supplementation, it decreases inflammation after exhaustive exercise and promotes recovery.</p>","PeriodicalId":20058,"journal":{"name":"Physiology international","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144049716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adipose-derived stem cells exosomal KLF3-AS1 attenuates ovarian function by YBX1/PI3K/Akt/mTOR signaling. 脂肪源性干细胞外泌体KLF3-AS1通过YBX1/PI3K/Akt/mTOR信号通路减弱卵巢功能。
IF 2.2 4区 医学
Physiology international Pub Date : 2025-04-10 DOI: 10.1556/2060.2025.00357
Wei Zhao, Haili Zhang, Liyan Zhang, Caizhu Hai, Shujun Liu, Haiyan Li, Yanan Zhang, Hongwu Wang, Caisheng Wang
{"title":"Adipose-derived stem cells exosomal KLF3-AS1 attenuates ovarian function by YBX1/PI3K/Akt/mTOR signaling.","authors":"Wei Zhao, Haili Zhang, Liyan Zhang, Caizhu Hai, Shujun Liu, Haiyan Li, Yanan Zhang, Hongwu Wang, Caisheng Wang","doi":"10.1556/2060.2025.00357","DOIUrl":"https://doi.org/10.1556/2060.2025.00357","url":null,"abstract":"<p><strong>Background: </strong>Adipose-derived stem cell (ADSC) derived exosomes have been widely studied in disease treatment. Exosomes are able to deliver bioactive molecules, including non-coding RNAs and proteins. Long non-coding RNAs (lncRNAs) are non-coding RNAs longer than 200 nucleotides and are enriched in exosomes. This work aimed to explore the effects of lncRNA KLF3 antisense RNA 1 (KLF3-AS1) that delivered by ADSC-derived exosomes on ovarian aging.</p><p><strong>Methods: </strong>ADSCs were isolated and characterized with the surface biomarkers. Exosomes were isolated from ADSCs. The biomarkers of ADSC-derived exosomes were identified using western blotting. Exosomes were labeled with PKH26 and internalized by primary granulosa cells (pGCs), and relative images were taken under fluorescence microscope. ADSCs were transfected with KLF3-AS1, and exosomes were isolated for treatment of aging female mice. The ovary weight was recorded. The follicular development was measured by Hematoxylin and eosin (H&E) staining and Masson's trichrome staining. Apoptosis of ovary tissues was detected by TUNEL assay. The senescence and apoptosis of pGCs were determined by S-β-gal staining kit and Annexin V/PI detection kit. RNA pulldown and RNA Immunoprecipitation Chip (RIP) assay were performed to determine the interaction of Y box binding protein 1 (YBX1) with KLF3-AS1.</p><p><strong>Results: </strong>The ADSC-derived exosomes could deliver KLF3-AS1 to pGCs. Treatment with ADSC-derived exosomes notably elevated the ovary weight and enhanced follicular development in aged mice, whereas depletion of KLF3-AS1 reversed these effects and promoted cell apoptosis. ADSCs-derived exosomes alleviated senescence and apoptosis of pGCs, while KLF3-AS1 depletion blocked these phenotypes. KLF3-AS1 directly interacts with YBX1. KLF3-AS1 depletion inhibited phosphorylation of PI3K, Akt, and mTOR in pGC, and overexpression of YBX1 reversed these phenotypes.</p><p><strong>Conclusion: </strong>ADSC-derived exosomal KLF3-AS1 could improve ovary aging and enhance pGC viability via targeting the YBX1 and PI3K/AKT/mTOR signaling.</p>","PeriodicalId":20058,"journal":{"name":"Physiology international","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144009534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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