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Liu Y, Han Y, Gao Y, Yao N, Wang Y, Wang F, Wu Z, Dong Y, Wang S, Li B. The association between oxidative balance score and frailty in adults across a wide age spectrum: NHANES 2007-2018. Food Funct 2024. [PMID: 38651948 DOI: 10.1039/d4fo00870g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Background: Frailty has been one of the most serious global public health challenges we will ever face. Oxidative stress is associated with the pathogenesis of frailty, and may be accurately reflected by the oxidative balance score (OBS). However, there have been no studies examining the effect of OBS on frailty. Therefore, we aimed to explore the association between OBS and frailty and whether there was an interaction between the outcomes. Methods: 22 914 participants aged over 20 years taking part in the National Health and Nutrition Examination Survey (NHANES) in 2007-2018 were involved in the study. Sixteen dietary factors and four lifestyle factors were selected to score the OBS. A modified 36-item deficit cumulative frailty index (FI) was used to assess the degree of frailty. The association between OBS and frailty was analyzed using binary logistic regression. Subgroup analysis and interaction tests were used to investigate whether this association was stable across populations. Results: A negative association between OBS and the prevalence of frailty was found in this study. There was also an interaction between OBS and age in their association with frailty. High OBS was significantly and negatively associated with the prevalence of frailty in the 20-39 and 40-64 age groups. In addition, higher OBS combined with a population in the 20-39 age group resulted in a stronger negative association with frailty. Conclusion: High OBS was significantly associated with lower odds of frailty. An interaction existed between OBS and age. Individuals, especially in relatively young populations, are advised to increase OBS through greater intake of antioxidant nutrients and healthier lifestyles, thereby reducing the adverse effects of frailty.
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Affiliation(s)
- Yan Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, P. R. China.
| | - Yu Han
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, P. R. China.
| | - Yuqi Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, P. R. China.
| | - Nan Yao
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, P. R. China.
| | - Yuxiang Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, P. R. China.
| | - Fengdan Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, P. R. China.
| | - Zibo Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, P. R. China.
| | - Yibo Dong
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, P. R. China.
| | - Sizhe Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, P. R. China.
| | - Bo Li
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, P. R. China.
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Yang WP, Li MQ, Ding J, Li JY, Wu G, Liu B, Gao YQ, Wang GH, Luo QQ. High-altitude hypoxia exposure inhibits erythrophagocytosis by inducing macrophage ferroptosis in the spleen. eLife 2024; 12:RP87496. [PMID: 38629942 PMCID: PMC11023697 DOI: 10.7554/elife.87496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024] Open
Abstract
High-altitude polycythemia (HAPC) affects individuals living at high altitudes, characterized by increased red blood cells (RBCs) production in response to hypoxic conditions. The exact mechanisms behind HAPC are not fully understood. We utilized a mouse model exposed to hypobaric hypoxia (HH), replicating the environmental conditions experienced at 6000 m above sea level, coupled with in vitro analysis of primary splenic macrophages under 1% O2 to investigate these mechanisms. Our findings indicate that HH significantly boosts erythropoiesis, leading to erythrocytosis and splenic changes, including initial contraction to splenomegaly over 14 days. A notable decrease in red pulp macrophages (RPMs) in the spleen, essential for RBCs processing, was observed, correlating with increased iron release and signs of ferroptosis. Prolonged exposure to hypoxia further exacerbated these effects, mirrored in human peripheral blood mononuclear cells. Single-cell sequencing showed a marked reduction in macrophage populations, affecting the spleen's ability to clear RBCs and contributing to splenomegaly. Our findings suggest splenic ferroptosis contributes to decreased RPMs, affecting erythrophagocytosis and potentially fostering continuous RBCs production in HAPC. These insights could guide the development of targeted therapies for HAPC, emphasizing the importance of splenic macrophages in disease pathology.
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Affiliation(s)
- Wan-ping Yang
- Department of Physiology and Hypoxic Biomedicine, Institute of Special Environmental Medicine and Co-innovation Center of Neuroregeneration, Nantong UniversityNantongChina
| | - Mei-qi Li
- Department of Physiology and Hypoxic Biomedicine, Institute of Special Environmental Medicine and Co-innovation Center of Neuroregeneration, Nantong UniversityNantongChina
| | - Jie Ding
- Department of Physiology and Hypoxic Biomedicine, Institute of Special Environmental Medicine and Co-innovation Center of Neuroregeneration, Nantong UniversityNantongChina
| | - Jia-yan Li
- Department of Physiology and Hypoxic Biomedicine, Institute of Special Environmental Medicine and Co-innovation Center of Neuroregeneration, Nantong UniversityNantongChina
| | - Gang Wu
- College of High-Altitude Military Medicine, Institute of Medicine and Hygienic Equipment for High Altitude Region, Army Medical UniversityChongqingChina
- Key Laboratory of Extreme Environmental Medicine and High-Altitude Medicine, Ministry of Education of ChinaChongqingChina
| | - Bao Liu
- College of High-Altitude Military Medicine, Institute of Medicine and Hygienic Equipment for High Altitude Region, Army Medical UniversityChongqingChina
- Key Laboratory of Extreme Environmental Medicine and High-Altitude Medicine, Ministry of Education of ChinaChongqingChina
| | - Yu-qi Gao
- College of High-Altitude Military Medicine, Institute of Medicine and Hygienic Equipment for High Altitude Region, Army Medical UniversityChongqingChina
- Key Laboratory of Extreme Environmental Medicine and High-Altitude Medicine, Ministry of Education of ChinaChongqingChina
| | - Guo-hua Wang
- Department of Physiology and Hypoxic Biomedicine, Institute of Special Environmental Medicine and Co-innovation Center of Neuroregeneration, Nantong UniversityNantongChina
- Department of Neurosurgery, Southwest Hospital, Army Medical UniversityChongqingChina
| | - Qian-qian Luo
- Department of Physiology and Hypoxic Biomedicine, Institute of Special Environmental Medicine and Co-innovation Center of Neuroregeneration, Nantong UniversityNantongChina
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Wu Y, Zhao W, Liu B, Zhang J, Zhong Z, Zhou S, Xie J, Gao Y, Li P, Chen J. Assessment of Acute Mountain Sickness: Comparing the Chinese AMS Score to the Lake Louise Score. High Alt Med Biol 2024. [PMID: 38602430 DOI: 10.1089/ham.2023.0033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2024] Open
Abstract
Wu, Yu, Wenqi Zhao, Bao Liu, Jianyang Zhang, Zhifeng Zhong, Simin Zhou, Jiaxin Xie, Yuqi Gao, Peng Li, and Jian Chen. Assessment of Acute Mountain Sickness: Comparing the Chinese Ams Score to the Lake Louise Score. High Alt Med Biol 00:000-000, 2024. Objective: To compare the ability of the Chinese AMS Score (CAS) to detect acute mountain sickness (AMS) using the 2018 version of the Lake Louise Score (LLS) as reference. Methods: After flying from Chengdu (altitude: 500 m) to Lhasa (3,658 m), 2,486 young men completed a questionnaire. The questionnaire contained LLS and CAS items. An LLS ≥3 and/or a CAS ≥cutoff were used as the criteria for AMS. Hierarchical cluster analysis and two-step cluster analysis were used to investigate relationships between the symptoms. Results: AMS incidence rates were 33.8% (n = 840) with the LLS and 59.3% (n = 1,473) with the CAS (χ2 = 872.5, p < 0.001). The LLS and CAS had a linear relationship (orthogonal regression, Pearson r = 0.91, p < 0.001). With the LLS as the standard, the CAS had high diagnostic accuracy (area under the curve = 0.95, 95% confidence interval: 0.94-0.96). However, with the CAS, 25.5% (n = 633) more participants were labeled as having AMS than with the LLS (false positives). Two clusters were identified: one with headache only (419 participants, 66.2%) and one without headache but with other symptoms (214 participants, 33.8%). Reducing the weight of headache in the CAS allowed to align CAS and LLS. Conclusion: In comparison to the LLS, the CAS has a sensitivity close to 100% but lacks specificity given the high rate of false positives. The different weight of headaches may be the main reason for the discrepancy.
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Affiliation(s)
- Yu Wu
- Department of High Altitude Operational Medicine College of High Altitude Military Medicine, Army Medical University, Chongqing, People's Republic of China
- High Altitude Medical Research Center, PLA, Army Medical University, Chongqing, People's Republic of China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education, Army Medical University, Chongqing, People's Republic of China
| | - Wenqi Zhao
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, People's Republic of China
- High Altitude Medical Research Center, PLA, Army Medical University, Chongqing, People's Republic of China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education, Army Medical University, Chongqing, People's Republic of China
| | - Bao Liu
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, People's Republic of China
- High Altitude Medical Research Center, PLA, Army Medical University, Chongqing, People's Republic of China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education, Army Medical University, Chongqing, People's Republic of China
| | - Jianyang Zhang
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, People's Republic of China
- High Altitude Medical Research Center, PLA, Army Medical University, Chongqing, People's Republic of China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education, Army Medical University, Chongqing, People's Republic of China
| | - Zhifeng Zhong
- Department of High Altitude Operational Medicine College of High Altitude Military Medicine, Army Medical University, Chongqing, People's Republic of China
- High Altitude Medical Research Center, PLA, Army Medical University, Chongqing, People's Republic of China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education, Army Medical University, Chongqing, People's Republic of China
| | - Simin Zhou
- Department of High Altitude Operational Medicine College of High Altitude Military Medicine, Army Medical University, Chongqing, People's Republic of China
- High Altitude Medical Research Center, PLA, Army Medical University, Chongqing, People's Republic of China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education, Army Medical University, Chongqing, People's Republic of China
| | - Jiaxin Xie
- Department of High Altitude Operational Medicine College of High Altitude Military Medicine, Army Medical University, Chongqing, People's Republic of China
- High Altitude Medical Research Center, PLA, Army Medical University, Chongqing, People's Republic of China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education, Army Medical University, Chongqing, People's Republic of China
| | - Yuqi Gao
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, People's Republic of China
- High Altitude Medical Research Center, PLA, Army Medical University, Chongqing, People's Republic of China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education, Army Medical University, Chongqing, People's Republic of China
| | - Peng Li
- Department of High Altitude Operational Medicine College of High Altitude Military Medicine, Army Medical University, Chongqing, People's Republic of China
- High Altitude Medical Research Center, PLA, Army Medical University, Chongqing, People's Republic of China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education, Army Medical University, Chongqing, People's Republic of China
| | - Jian Chen
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, People's Republic of China
- High Altitude Medical Research Center, PLA, Army Medical University, Chongqing, People's Republic of China
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education, Army Medical University, Chongqing, People's Republic of China
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Chen Y, Tang X, Zeng X, Han B, Xie H, Wang W, Sun L, Hu M, Gao Y, Xiao W. Gastrointestinal syndrome encountered during a train voyage to high altitudes: A 14-day survey of 69 passengers in China. Travel Med Infect Dis 2024; 59:102718. [PMID: 38582488 DOI: 10.1016/j.tmaid.2024.102718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 03/29/2024] [Accepted: 03/30/2024] [Indexed: 04/08/2024]
Abstract
BACKGROUND The diagnosis and evaluation of the severity of acute mountain sickness (AMS) continue to be problematic due to a lack of consensus on the inclusion of symptoms in a scoring system. Recent investigations highlight the significance of gastrointestinal symptoms in identifying this condition. However, the specific gastrointestinal symptoms associated with AMS have not been thoroughly elucidated in previous studies, and the underlying risk factors remain inadequately comprehended. METHODS This study aimed to investigate the characteristics, trends, and risk factors related to gastrointestinal symptoms encountered during train travel to high altitude. A total of 69 passengers, specifically all with medical backgrounds, were surveyed 6 times over a period of 14 days. RESULTS The daily incidence of abdominal discomfort was higher than non-gastrointestinal symptoms within 14 days. Gastrointestinal symptoms demonstrated a greater prevalence, longer duration, and increased risk compared to non-gastrointestinal symptoms, such as headaches. The symptoms of abdominal distension and bowel sound hyperaction were found to be prevalent and persistent among patients diagnosed with AMS, exhibiting a high incidence rate. Gender, age, body mass index (BMI), smoking habits, and alcohol consumption were identified as risk factors associated with the occurrence and duration of gastrointestinal symptoms. CONCLUSION This study suggests that gastrointestinal symptoms are more common and persistent when traveling to the plateau by train. These symptoms should be taken into consideration in the further diagnosis and prevention of AMS. Therefore, this study provides a significant theoretical foundation for the prevention and treatment of AMS.
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Affiliation(s)
- Yihui Chen
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
| | - Xiaoqi Tang
- Department of Clinical Laboratory Medicine, Southwest Hospital, Army Medical University, Chongqing, 400038, China
| | - Xiong Zeng
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
| | - Ben Han
- Department of Nutrition, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
| | - Huichao Xie
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
| | - Wei Wang
- Department of Nutrition, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
| | - Lihua Sun
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
| | - Mingdong Hu
- Department of Geriatrics and Special Services Medicine, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China.
| | - Yuqi Gao
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, 400038, China.
| | - Weidong Xiao
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China.
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5
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Jin Q, Hu Y, Gao Y, Zheng J, Chen J, Gao C, Peng J. Hhex and Prox1a synergistically dictate the hepatoblast to hepatocyte differentiation in zebrafish. Biochem Biophys Res Commun 2023; 686:149182. [PMID: 37922575 DOI: 10.1016/j.bbrc.2023.149182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 10/28/2023] [Indexed: 11/07/2023]
Abstract
The specification of endoderm cells to prospective hepatoblasts is the starting point for hepatogenesis. However, how a prospective hepatoblast gains the hepatic fate remains elusive. Previous studies have shown that loss-of-function of either hhex or prox1a alone causes a small liver phenotype but without abolishing the hepatocyte differentiation, suggesting that absence of either Hhex or Prox1a alone is not sufficient to block the hepatoblast differentiation. Here, via genetic studies of the zebrafish two single (hhex-/- and prox1a-/-) and one double (hhex-/-prox1a-/-) mutants, we show that simultaneous loss-of-function of the hhex and prox1a two genes does not block the endoderm cells to gain the hepatoblast potency but abolishes the hepatic differentiation from the prospective hepatoblast. Consequently, the hhex-/-prox1a-/- double mutant displays a liverless phenotype that cannot be rescued by the injection of bmp2a mRNA. Taken together, we provide strong evidences showing that Hhex teams with Prox1a to act as a master control of the differentiation of the prospective hepatoblasts towards hepatocytes.
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Affiliation(s)
- Qingxia Jin
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang Province, 310058, China
| | - Yuqing Hu
- College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang Province, 310058, China
| | - Yuqi Gao
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang Province, 310058, China
| | - Jiayi Zheng
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang Province, 310058, China
| | - Jun Chen
- College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang Province, 310058, China
| | - Ce Gao
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang Province, 310058, China.
| | - Jinrong Peng
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang Province, 310058, China.
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Ma J, Yuan T, Gao Y, Zeng X, Liu Z, Gao J. Torreya grandis oil attenuates cognitive impairment in scopolamine-induced mice. Food Funct 2023; 14:10520-10534. [PMID: 37946597 DOI: 10.1039/d3fo03800a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
The oil of Torreya grandis (TGO), a common nut in China, is considered to be a bioactive edible oil and has a great value in functional food development. In this study, the neuroprotective effects of TGO were investigated on a scopolamine (SCOP)-induced C57BL/6J mouse model. The mice were pretreated with TGO for 30 days (1000 mg per kg per day and 3000 mg per kg per day, i.g.). Behavioral tests showed that the supplementation of TGO could prevent the cognitive deficits induced by SCOP. TGO rebalanced the disorder of the cholinergic system by upgrading the level of acetylcholine. TGO also alleviated the over-activation of microglia and inhibited neuroinflammation and oxidative stress. Additionally, TGO could regulate the composition of gut microbiota, increase the production of short-chain fatty acids, and decrease the content of lipopolysaccharides in the serum. In conclusion, TGO has the potential to prevent loss of memory and impairment of cognition, which may be related to its regulation of the gut microbiota-metabolite-brain axis.
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Affiliation(s)
- Jiachen Ma
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Tian Yuan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yuqi Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xiaoming Zeng
- Anhui Kangxinxiang Agricultural Technology Co., Ltd, Yuexi 246600, Anhui, China
| | - Zhigang Liu
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jinming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, China
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Gao Y, Peng K, Wang Y, Guo Y, Zeng C, Hua R, Liu Q, Li X, Qiu Y, Wang Z. Ellagic acid ameliorates cisplatin-induced acute kidney injury by regulating inflammation and SIRT6/TNF-α signaling. Food Science and Human Wellness 2023. [DOI: 10.1016/j.fshw.2023.03.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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Han S, Fang J, Yu L, Li B, Hu Y, Chen R, Li C, Zhao C, Li J, Wang Y, Gao Y, Tan H, Jin Q. Serum‑derived exosomal hsa‑let‑7b‑5p as a biomarker for predicting the severity of coronary stenosis in patients with coronary heart disease and hyperglycemia. Mol Med Rep 2023; 28:203. [PMID: 37711034 PMCID: PMC10539999 DOI: 10.3892/mmr.2023.13090] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 08/21/2023] [Indexed: 09/16/2023] Open
Abstract
Exosomal microRNAs (miRNAs/miRs) are potential biomarkers for the diagnosis and treatment of cardiovascular disease, and hyperglycemia serves an important role in the development of atherosclerosis. The present study aimed to investigate the expression profile of serum‑derived exosomal miRNAs in coronary heart disease (CHD) with hyperglycemia, and to identify effective biomarkers for predicting coronary artery lesions. Serum samples were collected from eight patients with CHD and hyperglycemia and eight patients with CHD and normoglycemia, exosomes were isolated and differentially expressed miRNAs (DEMIs) were filtered using a human miRNA microarray. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were performed using standard enrichment computational methods for the target genes of DEMIs. Receiver operating characteristic (ROC) curve analysis was applied to evaluate the values of the selected DEMIs in predicting the severity of coronary stenosis. A total of 10 DEMIs, including four upregulated miRNAs (hsa‑let‑7b‑5p, hsa‑miR‑4313, hsa‑miR‑4665‑3p and hsa‑miR‑940) and six downregulated miRNAs (hsa‑miR‑4459, hsa‑miR‑4687‑3p, hsa‑miR‑6087, hsa‑miR‑6089, hsa‑miR‑6740‑5p and hsa‑miR‑6800‑5p), were screened in patients with CHD and hyperglycemia. GO analysis showed that the 'cellular process', 'single‑organism process' and 'biological regulation' were significantly enriched. KEGG pathway analysis revealed that the 'mTOR signaling pathway', 'FoxO signaling pathway' and 'neurotrophin signaling pathway' were significantly enriched. Among these DEMIs, only hsa‑let‑7b‑5p expression was positively correlated with both hemoglobin A1C levels and Synergy between Percutaneous Coronary Intervention with Taxus and Cardiac Surgery score. ROC curves showed that hsa‑let‑7b‑5p could serve as an effective biomarker for differentiating the severity of coronary stenosis. In conclusion, the present study demonstrated that serum‑derived exosomal hsa‑let‑7b‑5p is upregulated in patients with CHD and hyperglycemia, and may serve as a noninvasive biomarker for the severity of coronary stenosis.
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Affiliation(s)
- Shufang Han
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Jie Fang
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Lili Yu
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Bin Li
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Yuhong Hu
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Ruimin Chen
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Changyong Li
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Chuanxu Zhao
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Jiaying Li
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Yinan Wang
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Yuqi Gao
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Hong Tan
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Qun Jin
- Department of Cardiology, The 960th Hospital of The Joint Service Support Force of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
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Gao Y, Boklund AE, Nielsen LH, Alban L, de Jong MCM. Estimating the impact of low temperature on African swine fever virus transmission through contaminated environments. Prev Vet Med 2023; 219:105991. [PMID: 37678000 DOI: 10.1016/j.prevetmed.2023.105991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 06/07/2023] [Accepted: 08/06/2023] [Indexed: 09/09/2023]
Abstract
African Swine Fever Virus (ASFV) is the cause of an infectious disease in pigs, which is difficult to control. Long viability of ASFV has been shown for several contaminated materials, especially under low temperature. Therefore, when pigs are exposed to a contaminated environment, new infections could occur without the presence of infectious individuals. For example, a contaminated, poorly washed, empty livestock vehicle poses a risk to the next load of pigs. A quantitative stochastic environmental transmission model was applied to simulate the change in environmental contamination levels over time and calculate the epidemic parameters through exposure-based estimation. Due to the lack of experimental data on environmental transmission at low temperatures, we performed a non-linear fit of the decay rate parameter with temperature based on a literature review. Eventually, 16 scenarios were constructed for different temperature (at 20 °C, 10 °C, 0 °C, or -10 °C) and duration of empty periods (1, 3, 5, or 7 days) after the environment had been contaminated. We quantified the variation in the contamination level of the environment over time and the probability of newly added recipients getting infected when exposed to the environment after the empty period. As a result, the transmission rate parameter for ASFV in pigs was estimated to be 1.53 (0.90, 2.45) day-1, the decay rate parameter to be 1.02 (0.73, 1.47) day-1 (at 21 °C), and the excretion rate parameter to be 2.70 (2.51, 3.02) day-1. Without washing and disinfecting, the environment required 9, 14, 24, 54 days to reach a low probability of causing at least one new case (<0.005) at 20 °C, 10 °C, 0 °C, -10 °C, respectively. In addition, the method proposed in this paper enables assessment of the effect of washing and disinfecting on ASFV environmental transmission. We conducted this study to better understand how the viability of ASFV at different temperatures could affect the infectivity in environmental transmission and to improve risk assessment and disease control strategies.
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Affiliation(s)
- Yuqi Gao
- Quantitative Veterinary Epidemiology group, Department of Animal Sciences, Wageningen University and Research, Wageningen, the Netherlands.
| | - Anette Ella Boklund
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lisbeth Harm Nielsen
- Department for Food Safety and Veterinary Issues, Danish Agriculture & Food Council, Copenhagen, Denmark
| | - Lis Alban
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Department for Food Safety and Veterinary Issues, Danish Agriculture & Food Council, Copenhagen, Denmark
| | - Mart C M de Jong
- Quantitative Veterinary Epidemiology group, Department of Animal Sciences, Wageningen University and Research, Wageningen, the Netherlands
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10
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Gao YQ, Xu CL, Fu HY, Zhu TT, Chu JH. [Clinical significance and pathogenesis analysis of Moesin in multiple myeloma]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:672-675. [PMID: 37803842 PMCID: PMC10520239 DOI: 10.3760/cma.j.issn.0253-2727.2023.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Indexed: 10/08/2023]
Affiliation(s)
- Y Q Gao
- Institute of Blood and Marrow Transplantation, Medical College of Soochow University, National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, Collaborative Innovation Center of Hematology, Suzhou 215000, China Children's Hospital of Soochow University, Suzhou 215000, China
| | - C L Xu
- Department of Clinical Laboratory, Dongtai Municipal People's Hospital, Dongtai 224200, China
| | - H Y Fu
- Children's Hospital of Soochow University, Suzhou 215000, China
| | - T T Zhu
- Institute of Blood and Marrow Transplantation, Medical College of Soochow University, National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, Collaborative Innovation Center of Hematology, Suzhou 215000, China
| | - J H Chu
- Institute of Blood and Marrow Transplantation, Medical College of Soochow University, National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, Collaborative Innovation Center of Hematology, Suzhou 215000, China
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11
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Song W, Zhao L, Gao Y, Han C, Gao S, Guo M, Bai J, Wang L, Yin W, Wu F, Zhang P. Dual growth factor-modified microspheres nesting human-derived umbilical cord mesenchymal stem cells for bone regeneration. J Biol Eng 2023; 17:43. [PMID: 37430290 DOI: 10.1186/s13036-023-00360-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/01/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUND Modular tissue engineering (MTE) is a novel "bottom-up" approach that aims to mimic complex tissue microstructural features. The constructed micromodules are assembled into engineered biological tissues with repetitive functional microunits and form cellular networks. This is emerging as a promising strategy for reconstruction of biological tissue. RESULTS Herein, we constructed a micromodule for MTE and developed engineered osteon-like microunits by inoculating human-derived umbilical cord mesenchymal stem cells (HUMSCs) onto nHA/PLGA microspheres with surface modification of dual growth factors (BMP2/bFGF). By evaluating the results of proliferation and osteogenic differentiation ability of HUMSCs in vitro, the optimal ratio of the dual growth factor (BMP2/bFGF) combination was derived as 5:5. In vivo assessments showed the great importance of HUMSCs for osteogneic differentiation. Ultimately, direct promotion of early osteo-differentiation manifested as upregulation of Runx-2 gene expression. The vascularization capability was evaluated by tube formation assays, demonstrating the importance of HUMSCs in the microunits for angiogenesis. CONCLUSIONS The modification of growth factors and HUMSCs showed ideal biocompatibility and osteogenesis combined with nHA/PLGA scaffolds. The micromodules constructed in the current study provide an efficient stem cell therapy strategy for bone defect repair.
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Affiliation(s)
- Wenzhi Song
- Department of Stomatology, China-Japan Union Hospital, Jilin University, Changchun, 130031, PR China
| | - Lanlan Zhao
- Department of Stomatology, China-Japan Union Hospital, Jilin University, Changchun, 130031, PR China
| | - Yuqi Gao
- Department of Stomatology, China-Japan Union Hospital, Jilin University, Changchun, 130031, PR China
| | - Chunyu Han
- Department of Stomatology, China-Japan Union Hospital, Jilin University, Changchun, 130031, PR China
| | - Shengrui Gao
- Department of Otorhinolaryngology, First Clinical Hospital of Jilin University, Changchun, 130021, PR China
| | - Min Guo
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, PR China
| | - Jianfei Bai
- Department of Stomatology, China-Japan Union Hospital, Jilin University, Changchun, 130031, PR China
| | - Liqiang Wang
- Department of Ophthalmology, Third Medical Center, Chinese PLA General Hospital, Beijing, 100853, PR China
| | - Wanzhong Yin
- Department of Otorhinolaryngology, First Clinical Hospital of Jilin University, Changchun, 130021, PR China.
| | - Feng Wu
- Foshan Hospital of Traditional Chinese Medicine/Foshan Hospital of TCM, Foshan, China.
| | - Peibiao Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, PR China
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12
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Ye Z, Song G, Liang J, Yi S, Gao Y, Jiang H. Optimized screening of DNA methylation sites combined with gene expression analysis to identify diagnostic markers of colorectal cancer. BMC Cancer 2023; 23:617. [PMID: 37400791 DOI: 10.1186/s12885-023-10922-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 05/05/2023] [Indexed: 07/05/2023] Open
Abstract
BACKGROUND The prognosis of patients with colorectal cancer is related to early detection. However, commonly used screening markers lack sensitivity and specificity. In this study, we identified diagnostic methylation sites for colorectal cancer. METHODS After screening the colorectal cancer methylation dataset, diagnostic sites were identified via survival analysis, difference analysis, and ridge regression dimensionality reduction. The correlation between the selected methylation sites and the estimation of immune cell infiltration was analyzed. The accuracy of the diagnosis was verified using different datasets and the 10-fold crossover method. RESULTS According to Gene Ontology, the main enrichment pathways of genes with hypermethylation sites are axon development, axonogenesis, and pattern specification processes. However, the Kyoto Encyclopedia of Genes and Genomes (KEGG) suggests the following main enrichment pathways: neuroactive ligand-receptor interaction, calcium signaling, and cAMP signaling. In The Cancer Genome Atlas (TCGA) and GSE131013 datasets, the area under the curve of cg07628404 was > 0.95. For the NaiveBayes machine model of cg02604524, cg07628404, and cg27364741, the accuracies of 10-fold cross-validation in the GSE131013 and TCGA datasets were 95% and 99.4%, respectively. The survival prognosis of the hypomethylated group (cg02604524, cg07628404, and cg27364741) was better than that of the hypermethylated group. The mutation risk did not differ between the hypermethylated and hypomethylated groups. The correlation coefficient between the three loci and CD4 central memory T cells, hematological stem cells, and other immune cells was not high (p < 0.05). CONCLUSION In cases of colorectal cancer, the main enrichment pathway of genes with hypermethylated sites was axon and nerve development. In the biopsy tissues, the hypermethylation sites were diagnostic for colorectal cancer, and the NaiveBayes machine model of the three loci showed good diagnostic performance. Site (cg02604524, cg07628404, and cg27364741) hypermethylation predicts poor survival for colorectal cancer. Three methylation sites were weakly correlated with individual immune cell infiltration. Hypermethylation sites may be a useful repository for diagnosing colorectal cancer.
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Affiliation(s)
- Zhen Ye
- Department of Health Management, The First Affiliated Hospital, Shandong Provincial Qianfoshan Hospital, Shandong First Medical University, Jinan, 250013, Shandong, China
| | - Guangle Song
- Department of Health Management, The First Affiliated Hospital, Shandong Provincial Qianfoshan Hospital, Shandong First Medical University, Jinan, 250013, Shandong, China
| | - Jianwei Liang
- Department of General Surgery, Tai'an City Center Hospital, Taian, 271000, Shandong, China
| | - Shuying Yi
- Department of Health Management, The First Affiliated Hospital, Shandong Provincial Qianfoshan Hospital, Shandong First Medical University, Jinan, 250013, Shandong, China
| | - Yuqi Gao
- Department of Health Management, The First Affiliated Hospital, Shandong Provincial Qianfoshan Hospital, Shandong First Medical University, Jinan, 250013, Shandong, China.
| | - Hanming Jiang
- Department of Health Management, The First Affiliated Hospital, Shandong Provincial Qianfoshan Hospital, Shandong First Medical University, Jinan, 250013, Shandong, China.
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13
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Gao Y, Hua R, Peng K, Yin Y, Zeng C, Guo Y, Wang Y, Li L, Li X, Qiu Y, Wang Z. High-starchy carbohydrate diet aggravates NAFLD by increasing fatty acids influx mediated by NOX2. Food Science and Human Wellness 2023. [DOI: 10.1016/j.fshw.2022.10.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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Liu Y, Hu Y, Yu C, Gao Y, Liu Z, Mostofa KMG, Li S, Hu Y, Yu G. Spatiotemporal optical properties of dissolved organic matter in a sluice-controlled coastal plain river with both salinity and trophic gradients. J Environ Sci (China) 2023; 129:1-15. [PMID: 36804226 DOI: 10.1016/j.jes.2022.09.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 06/18/2023]
Abstract
Due to the combined effect of sluices and sea tide, the sluice-controlled coastal plain river would be characterized by both trophic state and salinity gradients, affecting the spatiotemporal optical properties of dissolved organic matter (DOM). In this study, we investigated the spatiotemporal variation of water quality parameters and optical properties of DOM in the Haihe River, a representative sluice-controlled coastal plain river in Tianjin, China. A significant salinity gradient and four trophic states were observed in the water body of the Haihe River. Two humic- and one protein-like substances were identified from the DOM by the three-dimensional fluorescence spectra combined with the parallel factor (PARAFAC) analysis. Pearson's correlation analysis and redundancy analysis (RDA) showed that the salinity significantly affected the abundance of chromophoric DOM (CDOM) but did not cause significant changes in the fluorescence optical characteristics. In addition, the effect of Trophic state index (TSI) on the CDOM abundance was greater than that on the fluorescence intensity of fluorescent dissolved organic matter (FDOM). In the water body with both salinity and trophic state gradients, TSI posed a greater influence than salinity on the CDOM abundance. Our results fill the research gap in spatiotemporal DOM characteristics and water quality variation in water bodies with both salinity and trophic state gradients. These results are beneficial for clarifying the joint influence of saline intrusion and sluices on the DOM characteristics and water quality in sluice-controlled coastal plain rivers.
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Affiliation(s)
- Yu Liu
- School of Earth System Science, Institute of Surface-Earth System Science, Tianjin University, Tianjin 300072, China.
| | - Yucheng Hu
- Tianjin Hydraulic Science Research Institute, Tianjin 300061, China
| | - Chengxun Yu
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300191, China
| | - Yuqi Gao
- School of Mathematics, Tianjin University, Tianjin 300072, China
| | - Zhenying Liu
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300191, China
| | - Khan M G Mostofa
- School of Earth System Science, Institute of Surface-Earth System Science, Tianjin University, Tianjin 300072, China
| | - Siliang Li
- School of Earth System Science, Institute of Surface-Earth System Science, Tianjin University, Tianjin 300072, China
| | - Yumei Hu
- School of Mathematics, Tianjin University, Tianjin 300072, China
| | - Guanghui Yu
- School of Earth System Science, Institute of Surface-Earth System Science, Tianjin University, Tianjin 300072, China
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15
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Peng K, Zeng C, Gao Y, Liu B, Li L, Xu K, Yin Y, Qiu Y, Zhang M, Ma F, Wang Z. Overexpressed SIRT6 ameliorates doxorubicin-induced cardiotoxicity and potentiates the therapeutic efficacy through metabolic remodeling. Acta Pharm Sin B 2023; 13:2680-2700. [PMID: 37425037 PMCID: PMC10326298 DOI: 10.1016/j.apsb.2023.03.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 02/12/2023] [Accepted: 03/02/2023] [Indexed: 07/11/2023] Open
Abstract
Since the utilization of anthracyclines in cancer therapy, severe cardiotoxicity has become a major obstacle. The major challenge in treating cancer patients with anthracyclines is minimizing cardiotoxicity without compromising antitumor efficacy. Herein, histone deacetylase SIRT6 expression was reduced in plasma of patients treated with anthracyclines-based chemotherapy regimens. Furthermore, overexpression of SIRT6 alleviated doxorubicin-induced cytotoxicity in cardiomyocytes, and potentiated cytotoxicity of doxorubicin in multiple cancer cell lines. Moreover, SIRT6 overexpression ameliorated doxorubicin-induced cardiotoxicity and potentiated antitumor efficacy of doxorubicin in mice, suggesting that SIRT6 overexpression could be an adjunctive therapeutic strategy during doxorubicin treatment. Mechanistically, doxorubicin-impaired mitochondria led to decreased mitochondrial respiration and ATP production. And SIRT6 enhanced mitochondrial biogenesis and mitophagy by deacetylating and inhibiting Sgk1. Thus, SIRT6 overexpression coordinated metabolic remodeling from glycolysis to mitochondrial respiration during doxorubicin treatment, which was more conducive to cardiomyocyte metabolism, thus protecting cardiomyocytes but not cancer cells against doxorubicin-induced energy deficiency. In addition, ellagic acid, a natural compound that activates SIRT6, alleviated doxorubicin-induced cardiotoxicity and enhanced doxorubicin-mediated tumor regression in tumor-bearing mice. These findings provide a preclinical rationale for preventing cardiotoxicity by activating SIRT6 in cancer patients undergoing chemotherapy, but also advancing the understanding of the crucial role of SIRT6 in mitochondrial homeostasis.
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Affiliation(s)
- Kezheng Peng
- The Ministry of Education Key Laboratory of Protein Science, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
| | - Chenye Zeng
- The Ministry of Education Key Laboratory of Protein Science, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
| | - Yuqi Gao
- The Ministry of Education Key Laboratory of Protein Science, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
| | - Binliang Liu
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Liyuan Li
- The Ministry of Education Key Laboratory of Protein Science, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
| | - Kang Xu
- The Ministry of Education Key Laboratory of Protein Science, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
| | - Yuemiao Yin
- The Ministry of Education Key Laboratory of Protein Science, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
| | - Ying Qiu
- School of Medicine, Tsinghua University, Beijing 100084, China
| | - Mingkui Zhang
- Department of Cardiac Surgery, First Hospital of Tsinghua University, Beijing 100016, China
| | - Fei Ma
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Zhao Wang
- The Ministry of Education Key Laboratory of Protein Science, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China
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16
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Gao Y, Zhang J, Li J, Song S, Zhang S, Liu Q, Wang X, Zhao J, Xia C, Xiao Y, Liu T. Establishment of environment-sensitive probes targeting BRD3/BRD4 for imaging and therapy of tumor. Eur J Med Chem 2023; 257:115478. [PMID: 37269669 DOI: 10.1016/j.ejmech.2023.115478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/10/2023] [Accepted: 05/10/2023] [Indexed: 06/05/2023]
Abstract
The BET (bromo and extra-terminal) family proteins are epigenetic readers and master transcription coactivators, which have attracted great interests as cancer therapeutic targets. However, there are few developed labeling toolkits that can be applied for the dynamic studies of BET family proteins in living cells and tissue slices. In order to label and study the distribution of the BET family proteins in tumor cells and tumor tissues, a novel series of environment-sensitive fluorescent probes (6a-6c) were designed and evaluated for their labeling properties. Interestingly, 6a is capable of identifying tumor tissue slices and making a distinction between the tumor and normal tissues. Moreover, it can localize to the nuclear bodies in tumor slices just like BRD3 antibody. In addition, it also played an anti-tumor role through the induction of apoptosis. All these features render 6a may compatible for immunofluorescent studies and future cancer diagnosis, and guide for the discovery of new anticancer drugs.
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Affiliation(s)
- Yuqi Gao
- College of Radiology, Shandong First Medical University, University & Shandong Academy of Medical Sciences, Taian, Shandong, 271016, China; Medical Science and Technology Innovation Center, Shandong First Medical University, Jinan, Shandong, 250117, China
| | - Jie Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China
| | - JianJun Li
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China
| | - Shubin Song
- Department of Breast Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China
| | - Sitao Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China
| | - Qiao Liu
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China
| | - Xu Wang
- Department of Biochemistry, Simmons Comprehensive Cancer Center, The University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Jinbo Zhao
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China
| | - Chengcai Xia
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China
| | - Yuliang Xiao
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China.
| | - Tingting Liu
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China.
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Hou X, Gao Y, Yang J, Liu H, Bai M, Wu Z, Li C, Tian J, Gao J. Phytoecdysteroids from Dianthus superbus L.: Structures and anti-neuroinflammatory evaluation. Phytochemistry 2023; 212:113710. [PMID: 37178942 DOI: 10.1016/j.phytochem.2023.113710] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 05/03/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023]
Abstract
Six undescribed C27-phytoecdysteroid derivatives, named superecdysones A-F, and ten known analogs were extracted from the whole plant of Dianthus superbus L. Their structures were identified by extensive spectroscopy, mass spectrometric methods, chemical transformations, chiral HPLC analysis, and the single-crystal X-ray diffraction analysis. Superecdysone A and B possess a tetrahydrofuran ring in the side chain and superecdysone C-E are rare phytoecdysones containing a (R)-lactic acid moiety, whereas superecdysone F is an uncommon B-ring-modified ecdysone. Notably, based on the variable temperature (from 333 K to 253 K) NMR experiments of superecdysone C, the missing carbon signals were visible at 253 K and assigned. The neuroinflammatory bioassay of all compounds were evaluated, and 22-acetyl-2-deoxyecdysone, 2-deoxy-20-hydroxyecdysone, 20-hydroxyecdysone, ecdysterone-22-O-benzoate, 20-hydroxyecdysone-20,22-O-R-ethylidene, and acetonide derivative 20-hydroxyecdysterone-20, 22-acetonide significantly suppressed the LPS-induced nitric oxide generation in microglia cells (BV-2), with IC50 values ranging from 6.9 to 23.0 μM. Structure-activity relationships were also discussed. Molecular docking simulations of the active compounds confirmed the possible mechanism of action against neuroinflammations. Furthermore, none compounds showed cytotoxicity against HepG2 and MCF-7. It is the first report about the occurrence and anti-neuroinflammatory activity of the phytoecdysteroids in the genus Dianthus. Our findings demonstrated that ecdysteroids may be used as potential anti-inflammatory drugs.
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Affiliation(s)
- Xueli Hou
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Yuqi Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Jinghui Yang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Hanwu Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Mengmeng Bai
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Zhenhai Wu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Chunhuan Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Junmian Tian
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China.
| | - Jinming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China.
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18
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Kang X, Gao Y, Fukada SI, Miao H. FAP senescence: a critical event in muscle regeneration. Signal Transduct Target Ther 2023; 8:195. [PMID: 37165025 PMCID: PMC10172357 DOI: 10.1038/s41392-023-01411-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/14/2023] [Accepted: 03/19/2023] [Indexed: 05/12/2023] Open
Affiliation(s)
- Xia Kang
- Department of Pathophysiology, College of High Altitude Military Medicine, Army Medical University, Chongqing, 400038, China
- Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Yuqi Gao
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Third Military Medical University (Army Medical University); Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China; Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, 400038, China.
| | - So-Ichiro Fukada
- Project for Muscle Stem Cell Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan.
| | - Hongming Miao
- Department of Pathophysiology, College of High Altitude Military Medicine, Army Medical University, Chongqing, 400038, China.
- Jinfeng Laboratory, Chongqing, 401329, China.
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Xu M, Gao C, Ji L, Zhu L, Gao Y, Feng H, Huang L. A fungal microRNA-like RNA regulated effector promotes pathogen infection by targeting a host defense-related transcription factor. Plant J 2023. [PMID: 37118888 DOI: 10.1111/tpj.16262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 04/12/2023] [Accepted: 04/20/2023] [Indexed: 05/19/2023]
Abstract
Effectors play important roles in facilitating the infection of plant pathogenic fungi. However, the gene expression regulatory mechanism of effector genes, in particular at the post-transcriptional level, is largely unknown. In this study, we uncovered the post-transcriptional regulation of an effector gene VmSP1 by a miRNA-like RNA (Vm-milR16) facilitating the infection of the apple tree Valsa canker pathogen Valsa mali. Genetic and molecular biological assays indicated that the expression of VmSP1 could be suppressed by Vm-milR16-mediated mRNA cleavage in a sequence-specific manner. During V. mali infection, Vm-milR16 was downregulated, whereas VmSP1 was upregulated, which further indicated the regulation relationship. VmSP1 was further demonstrated to be a secreted protein and could suppress plant immunity. Deletion of VmSP1 did not affect the vegetative growth but significantly reduced the virulence of V. mali. Further study indicated that VmSP1 could interact with the transcription factor MdbHLH189 of apple. Transiently overexpression of MdbHLH189 enhanced host resistance to V. mali by enhancing the expression of apple defense-related genes, together with the increased callose deposition. Silencing of MdbHLH189 compromised host resistance to V. mali. Our findings uncovered the novel epigenetic regulation mechanism of a virulence-associated effector gene mediated by a fungal milRNA at the post-transcriptional level, and the results enriched the understanding of the function and action mechanism of effectors in tree pathogenic fungi.
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Affiliation(s)
- Ming Xu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Chen Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Lin Ji
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Lihua Zhu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yuqi Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Hao Feng
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Lili Huang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
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20
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Gao Y, Nielsen LH, Boklund AE, de Jong MCM, Alban L. SWOT analysis of risk factors associated with introduction of African Swine Fever through vehicles returning after export of pigs. Front Vet Sci 2023; 9:1049940. [PMID: 36686159 PMCID: PMC9846816 DOI: 10.3389/fvets.2022.1049940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 12/12/2022] [Indexed: 01/06/2023] Open
Abstract
Denmark is a major pig exporter and applies a high level of biosecurity, with washing and disinfecting stations for returning livestock vehicles. The introduction of African Swine Fever (ASF) would have significant economic consequences related to loss of export of live pigs and products thereof. In this study, we focused on the role of empty livestock vehicles returning after exports of pigs for the introduction of ASF. Initially, the current components and measures related to export of livestock were described. Next, analyses of strengths, weaknesses, opportunities, and threats (SWOT) were conducted, covering the components and measures identified. Then, export of pigs was described either through assembly centers or directly from farms. Washing and disinfection, as required and undertaken at the designated stations, constitutes the most important among all risk-reducing measures identified. Recommendations are to: (1) ensure the quality of washing and disinfection through staff training; (2) find new, safe, and more efficient disinfectants; (3) ensure the required temperature, and therefore effect, of the disinfectant and water. It was impossible to assess, the influence of export through assembly centers compared to direct transport. However, through SWOT analyses we identified the strengths and weaknesses of the two pathways. Moreover, components/measures with risks of unknown sizes are also discussed, such as vehicles undertaking cabotage and the current vehicle quarantine periods.
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Affiliation(s)
- Yuqi Gao
- Quantitative Veterinary Epidemiology, Department of Animal Sciences, Wageningen University and Research, Wageningen, Netherlands,*Correspondence: Yuqi Gao ✉
| | - Lisbeth Harm Nielsen
- Department for Food Safety and Veterinary Issues, Danish Agriculture and Food Council, Copenhagen, Denmark
| | - Anette Ella Boklund
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Mart C. M. de Jong
- Quantitative Veterinary Epidemiology, Department of Animal Sciences, Wageningen University and Research, Wageningen, Netherlands
| | - Lis Alban
- Department for Food Safety and Veterinary Issues, Danish Agriculture and Food Council, Copenhagen, Denmark,Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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E G, Sun B, Liu B, Xu G, He S, Wang Y, Feng L, Wei H, Zhang J, Chen J, Gao Y, Zhang E. Enhanced BPGM/2,3-DPG pathway activity suppresses glycolysis in hypoxic astrocytes via FIH-1 and TET2. Brain Res Bull 2023; 192:36-46. [PMID: 36334804 DOI: 10.1016/j.brainresbull.2022.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/21/2022] [Accepted: 11/01/2022] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Bisphosphoglycerate mutase (BPGM) is expressed in human erythrocytes and responsible for the production of 2,3-bisphosphoglycerate (2,3-DPG). However, the expression and role of BPGM in other cells have not been reported. In this work, we found that BPGM was significantly upregulated in astrocytes upon acute hypoxia, and the role of this phenomenon will be clarified in the following report. METHODS The mRNA and protein expression levels of BPGM and the content of 2,3-DPG with hypoxia treatment were determined in vitro and in vivo. Furthermore, glycolysis was evaluated upon in hypoxic astrocytes with BPGM knockdown and in normoxic astrocytes with BPGM overexpression or 2,3-DPG treatment. To investigate the mechanism by which BPGM/2,3-DPG regulated glycolysis in hypoxic astrocytes, we detected the expression of HIF-1α, FIH-1 and TET2 with silencing or overexpression of BPGM and 2,3-DPG treatment. RESULTS The expression of glycolytic genes and the capacity of lactate markedly increased with 6 h, 12 h, 24 h, 36 h and 48 h 1 % O2 hypoxic treatment in astrocytes. The expression of BPGM was upregulated, and the production of 2,3-DPG was accelerated upon hypoxia. Moreover, when BPGM expression was knocked down, glycolysis was promoted in HEB cells. However, overexpression of BPGM and addition of 2,3-DPG to the cellular medium in normoxic cells could downregulate glycolytic genes. Furthermore, HIF-1α and TET2 exhibited higher expression levels and FIH-1 showed a lower expression level upon BPGM silencing, while these changes were reversed under BPGM overexpression and 2,3-DPG treatment. CONCLUSIONS Our study revealed that the BPGM/2,3-DPG pathway presented a suppressive effect on glycolysis in hypoxic astrocytes by negatively regulating HIF-1α and TET2.
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Affiliation(s)
- Guoji E
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China; Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China.
| | - Binda Sun
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China; Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China.
| | - Bao Liu
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China; Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China.
| | - Gang Xu
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China; Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China.
| | - Shu He
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China; Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China.
| | - Yu Wang
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China; Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China.
| | - Lan Feng
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China; Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China.
| | - Hannan Wei
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China; Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China.
| | - Jianyang Zhang
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China; Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China.
| | - Jian Chen
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China; Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China.
| | - Yuqi Gao
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China; Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China.
| | - Erlong Zhang
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China; Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China.
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Liu B, Xu G, Sun B, Wu G, Chen J, Gao Y. Clinical and biochemical indices of people with high-altitude experience linked to acute mountain sickness. Travel Med Infect Dis 2023; 51:102506. [PMID: 36410656 DOI: 10.1016/j.tmaid.2022.102506] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 11/02/2022] [Accepted: 11/15/2022] [Indexed: 11/21/2022]
Abstract
BACKGROUND Acute mountain sickness (AMS) is a major health issue for people travelling to high altitudes. This study was designed to comprehensively evaluate the changes in clinical characteristics and biochemical indices of high-altitude travelers and determine whether these changes were associated with AMS. METHODS A total of 14 clinical indices and 52 biochemical indices were determined in 22 subjects before and during acute high-altitude exposure. Six hours after passive ascent to 3648 m (Lhasa, China), the Lake Louise Scoring (LLS) system 2018 was used to assess AMS, which was defined as headache with a total LLS ≥3. RESULTS Before travelling to high altitudes, uric acid (UA), platelet distribution width (PDW), mitral peak E velocity (MVE), and ejection fraction (EF) were significantly higher in AMS-resistant individuals than in AMS-susceptible ones (all p < 0.05). A good predictive value of UA (0.817, 95% CI: 0.607-1.000) and PDW (0.844, 95% CI: 0.646-1.000) for AMS-susceptible subjects was found. With high-altitude experience, 14 subjects were diagnosed as having AMS. Compared with non-AMS, the changes in UA and number of neutrophils in AMS presented a significant difference (all p < 0.05). The high-altitude-induced changes in UA, area under the curve, specificity, and sensitivity for identifying AMS were 0.883 (95% CI: 0.738-1.000), 83.30%, and 90.00%, respectively. CONCLUSION Human presents a compensatory physiological and biochemical response to high-altitude travel at early phase. The UA concentration before travel and its trend with high-altitude experience exhibited good performance for identifying AMS.
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Affiliation(s)
- Bao Liu
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, 400038, China; Key Laboratory of High Altitude Medicine, PLA, Chongqing, 400038, China.
| | - Gang Xu
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, 400038, China; Key Laboratory of High Altitude Medicine, PLA, Chongqing, 400038, China.
| | - Bingda Sun
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, 400038, China; Key Laboratory of High Altitude Medicine, PLA, Chongqing, 400038, China.
| | - Gang Wu
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, 400038, China; Key Laboratory of High Altitude Medicine, PLA, Chongqing, 400038, China.
| | - Jian Chen
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, 400038, China; Key Laboratory of High Altitude Medicine, PLA, Chongqing, 400038, China.
| | - Yuqi Gao
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, 400038, China; Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, 400038, China; Key Laboratory of High Altitude Medicine, PLA, Chongqing, 400038, China.
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23
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Gao Y, Yan K, Yan X, Xi N, Gao J, Ren H. Correlation between health literacy and health‐related quality of life in patients with diabetic peripheral neuropathy: The mediating role of self‐management. Nurs Open 2022; 10:3164-3177. [PMID: 36572957 PMCID: PMC10077377 DOI: 10.1002/nop2.1566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 11/25/2022] [Accepted: 12/10/2022] [Indexed: 12/28/2022] Open
Abstract
AIM The aims of the study were to analyse the current situation of health literacy (HL), self-management and health-related quality of life (HRQOL) in patients with diabetic peripheral neuropathy (DPN), to explore the correlation between the three and to verify the mediating role of self-management in HL and HRQOL. DESIGN A cross-sectional survey. METHODS The convenience sampling method was used to select 401 DPN patients attending the First Hospital of Jinzhou Medical University in Liaoning Province, China, from December 2020 to December 2021 as the study population. The research instrument included socio-demographic characteristics questionnaire, Health Literacy Management Scale (HeLMS), Summary of Diabetes Self-Care Activities (SDSCA) and Short-Form 12-item Health Survey (SF-12). SPSS 25.0 was applied to the data for descriptive analysis, Pearson correlation analysis and stratified multiple regression analysis. Mediating effects were tested using SPSS PROCESS macro 4.0 software. RESULTS HL and self-management of DPN patients correlated positively with HRQOL. The mediation role of self-management was significant in the relationship between HL and physical and mental HRQOL (physical component summary: β = 0.26, P < 0.01; mental component summary: β = 0.18, P < 0.01), with mediating effects accounting for 35.62% and 34.62% of the total effect. CONCLUSIONS There was a positive correlation between HL, self-management and HRQOL in patients with DPN. Self-management plays a partially mediating role in the relationship between HL and HRQOL in DPN patients. It means that HRQOL in this population can be improved by increasing HL and thus self-management in DPN patients. PATIENT OR PUBLIC CONTRIBUTION None.
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Affiliation(s)
- Yuqi Gao
- School of Nursing Jinzhou Medical University Jinzhou City Liaoning Province China
| | - Keshu Yan
- School of Nursing Jinzhou Medical University Jinzhou City Liaoning Province China
| | - Xiangru Yan
- School of Nursing Jinzhou Medical University Jinzhou City Liaoning Province China
| | - Na Xi
- School of Nursing Jinzhou Medical University Jinzhou City Liaoning Province China
| | - Jia Gao
- Tie Coal General Hospital of Liaoning Health Industry Group Tieling City Liaoning Province China
| | - Hengjie Ren
- First Affiliated Hospital of Jinzhou Medical University Jinzhou City Liaoning Province China
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24
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Zhang J, Gao Y, Zhang Z, Zhao J, Jia W, Xia C, Wang F, Liu T. Multi-therapies Based on PARP Inhibition: Potential Therapeutic Approaches for Cancer Treatment. J Med Chem 2022; 65:16099-16127. [PMID: 36512711 DOI: 10.1021/acs.jmedchem.2c01352] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The nuclear enzymes called poly(ADP-ribose)polymerases (PARPs) are known to catalyze the process of PARylation, which plays a vital role in various cellular functions. They have become important targets for the discovery of novel antitumor drugs since their inhibition can induce significant lethality in tumor cells. Therefore, researchers all over the world have been focusing on developing novel and potent PARP inhibitors for cancer therapy. Studies have shown that PARP inhibitors and other antitumor agents, such as EZH2 and EGFR inhibitors, play a synergistic role in cancer cells. The combined inhibition of PARP and the targets with synergistic effects may provide a rational strategy to improve the effectiveness of current anticancer regimens. In this Perspective, we sum up the recent advance of PARP-targeted agents, including single-target inhibitors/degraders and dual-target inhibitors/degraders, discuss the fundamental theory of developing these dual-target agents, and give insight into the corresponding structure-activity relationships of these agents.
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Affiliation(s)
- Jie Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271016, China
| | - Yuqi Gao
- College of Radiology, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271016, China.,Medical Science and Technology Innovation Center, Shandong First Medical University, Jinan, Shandong 250117, China
| | - Zipeng Zhang
- Medical Science and Technology Innovation Center, Shandong First Medical University, Jinan, Shandong 250117, China
| | - Jinbo Zhao
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271016, China.,Department of Chemistry and Biology, Jilin Provincial Key Laboratory of Carbon Fiber Development and Application, Changchun University of Technology, Changchun, Jilin 130012, China
| | - Wenshuang Jia
- Medical Science and Technology Innovation Center, Shandong First Medical University, Jinan, Shandong 250117, China
| | - Chengcai Xia
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271016, China
| | - Fugang Wang
- Department of Pharmacology, School of Pharmacy, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271016, China
| | - Tingting Liu
- Department of Medicinal Chemistry, School of Pharmacy, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, Shandong 271016, China
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25
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Jin Q, Gao Y, Shuai S, Chen Y, Wang K, Chen J, Peng J, Gao C. Cdx1b protects intestinal cell fate by repressing signaling networks for liver specification. J Genet Genomics 2022; 49:1101-1113. [PMID: 36460297 DOI: 10.1016/j.jgg.2022.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/20/2022] [Accepted: 11/21/2022] [Indexed: 12/03/2022]
Abstract
In mammals, the expression of the homeobox family member Cdx2/CDX2 is restricted within the intestine. Conditional ablation of the mouse Cdx2 in the endodermal cells causes a homeotic transformation of the intestine towards the esophagus or gastric fate. In this report, we show that null mutants of zebrafish cdx1b, encoding the counterpart of mammalian CDX2, could survive more than 10 days post fertilization, a stage when the zebrafish digestive system has been well developed. Through RNA sequencing (RNA-seq) and single-cell sequencing (scRNA-seq) of the dissected intestine from the mutant embryos, we demonstrate that the loss-of-function of the zebrafish cdx1b yields hepatocyte-like intestinal cells, a phenotype never observed in the mouse model. Further RNA-seq data analysis, and genetic double mutants and signaling inhibitor studies reveal that Cdx1b functions to guard the intestinal fate by repressing, directly or indirectly, a range of transcriptional factors and signaling pathways for liver specification. Finally, we demonstrate that heat shock-induced overexpression of cdx1b in a transgenic fish abolishes the liver formation. Therefore, we demonstrate that Cdx1b is a key repressor of hepatic fate during the intestine specification in zebrafish.
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Affiliation(s)
- Qingxia Jin
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yuqi Gao
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Shimin Shuai
- Department of Human Cell Biology and Genetics, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Yayue Chen
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Kaiyuan Wang
- College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Jun Chen
- College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Jinrong Peng
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China.
| | - Ce Gao
- College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China.
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Gao Y, Jin Q, Gao C, Chen Y, Sun Z, Guo G, Peng J. Unraveling Differential Transcriptomes and Cell Types in Zebrafish Larvae Intestine and Liver. Cells 2022; 11:3290. [PMID: 36291156 PMCID: PMC9600436 DOI: 10.3390/cells11203290] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 10/05/2022] [Accepted: 10/06/2022] [Indexed: 11/07/2023] Open
Abstract
The zebrafish intestine and liver, as in other vertebrates, are derived from the endoderm. Great effort has been devoted to deciphering the molecular mechanisms controlling the specification and development of the zebrafish intestine and liver; however, genome-wide comparison of the transcriptomes between these two organs at the larval stage remains unexplored. There is a lack of extensive identification of feature genes marking specific cell types in the zebrafish intestine and liver at 5 days post-fertilization, when the larval fish starts food intake. In this report, through RNA sequencing and single-cell RNA sequencing of intestines and livers separately dissected from wild-type zebrafish larvae at 5 days post-fertilization, together with the experimental validation of 47 genes through RNA whole-mount in situ hybridization, we identified not only distinctive transcriptomes for the larval intestine and liver, but also a considerable number of feature genes for marking the intestinal bulb, mid-intestine and hindgut, and for marking hepatocytes and cholangiocytes. Meanwhile, we identified 135 intestine- and 97 liver-enriched transcription factor genes in zebrafish larvae at 5 days post-fertilization. Our findings provide rich molecular and cellular resources for studying cell patterning and specification during the early development of the zebrafish intestine and liver.
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Affiliation(s)
- Yuqi Gao
- MOE Key Laboratory for Molecular Animal Nutrition, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qingxia Jin
- MOE Key Laboratory for Molecular Animal Nutrition, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Ce Gao
- MOE Key Laboratory for Molecular Animal Nutrition, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yayue Chen
- MOE Key Laboratory for Molecular Animal Nutrition, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zhaoxiang Sun
- College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Guoji Guo
- School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Jinrong Peng
- MOE Key Laboratory for Molecular Animal Nutrition, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
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Wang D, Liu L, Xue R, Li Z, Gao Y, Wang T, Kang Y, Wang J, Yin Q, Li N, Han Y. On the establishment of reference values of clouds of electromyography interference pattern by linear regression method and percentile method and comparison of sensitivity and specificity of both methods. Front Neurol 2022; 13:917308. [PMID: 36119703 PMCID: PMC9475198 DOI: 10.3389/fneur.2022.917308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 07/25/2022] [Indexed: 11/29/2022] Open
Abstract
Objective Turn-amplitude clouds were widely used in automatic electromyography (EMG) interference pattern analysis. Earlier works employed the intercept ± 2SD (standard deviation) of the linear regression equation as the upper and lower boundaries of the clouds. The goal of this study was to employ the linear regression method and percentile method to calculate the reference value of turn-amplitude clouds, identify the determining criteria in accordance with the receiver operator characteristic curve (ROC), and analyze the sensitivity and specificity of the linear regression cloud, percentile cloud, and quantitative assessment of the motor unit potential (QMUP). Methods First, we explore what factors affect the number of turns per second and the mean amplitude. Then, their logarithms were taken for the normal test. All muscle data were used to calculate the reference values of percentile clouds. However, the reference values of the linear regression clouds were obtained for the muscles with a bivariate normal distribution, homogeneous variances and a linear correlation. We calculated the prediction interval with the standard errors of the intercept and slope of the linear regression equation, which can determine the upper and lower boundaries of the linear regression clouds. Furthermore, we obtained ROCs of these clouds, which were used as the determining criteria to determine the optimum cut-off values. Finally, our study analyzed the sensitivity and specificity of the linear regression cloud, percentile cloud, and QMUP. Results We here presented the reference values and ROCs of the linear regression clouds and percentile clouds. We suggest the determining criteria be based on ROCs. The areas under the curve (AUC) of both clouds are larger than 0.8, revealing that they have significant diagnostic value. Our results display that the specificities of the linear regression clouds, percentile clouds, and QMUP are almost identical to each other, whereas the sensitivity of percentile cloud is higher than those of QMUP and linear regression clouds. Conclusion According to ROCs, the researchers determine the determining criteria of the linear regression clouds and percentile clouds. Our findings suggest that the percentile clouds possess a wide application range and significant diagnostic value, therefore it may be the optimum for automatic EMG interference pattern analysis.
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Affiliation(s)
- Dan Wang
- Department of Neurology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Lei Liu
- Department of Neurology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Ruohong Xue
- Department of Neurology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Zhongming Li
- Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Yuqi Gao
- School of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Ting Wang
- Department of Neurology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yanfang Kang
- Department of Neurology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jingjing Wang
- Department of Clinical Pharmacy, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Qiuye Yin
- The First Clinical College of Kunming Medical University, Kunming, China
| | - Najuan Li
- Department of Neurology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yanbing Han
- Department of Neurology, First Affiliated Hospital of Kunming Medical University, Kunming, China
- *Correspondence: Yanbing Han
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Peng L, Chen Y, Li Y, Feng P, Zheng Y, Dong Y, Yang Y, Wang R, Li A, Yan J, Shang F, Tang P, Chen D, Gao Y, Huang W. Chemerin Regulates the Proliferation and Migration of Pulmonary Arterial Smooth Muscle Cells via the ERK1/2 Signaling Pathway. Front Pharmacol 2022; 13:767705. [PMID: 35370637 PMCID: PMC8971604 DOI: 10.3389/fphar.2022.767705] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 02/21/2022] [Indexed: 11/13/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is an incurable disease with high mortality. Chemerin has been found to be associated with pulmonary hypertension (PH). However, the specific role of chemerin in mediating PH development remains unclear. This study aimed to elucidate the regulatory effects and the underlying mechanism of chemerin on PH and to investigate the expression levels of chemerin protein in plasma in PAH patients. In vivo, two animal models of PH were established in rats by monocrotaline (MCT) injection and hypoxia. We found that the expression levels of chemerin and its receptor, chemokine-like receptor 1 (CMKLR1), were significantly upregulated in the lungs of PH rats. Primary cultured pulmonary arterial smooth muscle cells [(PASMCs) (isolated from pulmonary arteries of normal healthy rats)] were exposed to hypoxia or treated with recombinant human chemerin, we found that CMKLR1 expression was upregulated in PASMCs in response to hypoxia or chemerin stimulation, whereas the exogenous chemerin significantly promoted the migration and proliferation of PASMCs. Notably, the regulatory effects of chemerin on PASMCs were blunted by PD98059 (a selective ERK1/2 inhibitor). Using enzyme linked immunosorbent assay (ELISA), we found that the protein level of chemerin was also markedly increased in plasma from idiopathic pulmonary arterial hypertension (IPAH) patients compared to that from healthy controls. Moreover, the diagnostic value of chemerin expression in IPAH patients was determined through receiver operating characteristic (ROC) curve analysis and the result revealed that area under ROC curve (AUC) for plasma chemerin was 0.949. Taken together, these results suggest that chemerin exacerbates PH progression by promoting the proliferation and migration of PASMCs via the ERK1/2 signaling pathway, and chemerin is associated with pulmonary hypertension.
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Affiliation(s)
- Linqian Peng
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Institute of Life Science, Chongqing Medical University, Chongqing, China
| | - Yunwei Chen
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Institute of Life Science, Chongqing Medical University, Chongqing, China
| | - Yan Li
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Institute of Life Science, Chongqing Medical University, Chongqing, China
| | - Panpan Feng
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yan Zheng
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Institute of Life Science, Chongqing Medical University, Chongqing, China
| | - Yongjie Dong
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Institute of Life Science, Chongqing Medical University, Chongqing, China
| | - Yunjing Yang
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ruiyu Wang
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Institute of Life Science, Chongqing Medical University, Chongqing, China
| | - Ailing Li
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jianghong Yan
- Institute of Life Science, Chongqing Medical University, Chongqing, China
| | - Feifei Shang
- Institute of Life Science, Chongqing Medical University, Chongqing, China
| | - Ping Tang
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dewei Chen
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
| | - Yuqi Gao
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
| | - Wei Huang
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Wei Huang,
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Gao Y, Li ZC, Ma XL, Gao YQ, Xiao Y, Dai X, Ma J. [The clinical phenotype and gene analysis of syndromic deafness with PTPN11 gene mutation]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:317-323. [PMID: 35325944 DOI: 10.3760/cma.j.cn15330-20210525-00294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To analyze the clinical phenotype and screen the genetic mutations of hereditary deafness in three deaf families to clarify their molecular biology etiology. Methods: From January 2019 to January 2020, three deaf children and family members were collected for medical history, physical examination, audiology evaluation, electrocardiogram and cardiac color Doppler ultrasound, temporal bone CT examination, and peripheral blood DNA was obtained for high-throughput sequencing of deafness genes. Sanger sequencing was performed to verify the variant sites among family members. The pathogenicity of the variants was evaluated according to the American College of Medical Genetics and Genomics. Results: The probands in the three families had deafness phenotypes. In family 1, proband had multiple lentigines, special facial features, growth retardation, pectus carinatum, abnormal skin elasticity, cryptorchidism and other manifestations. In family 2, proband had special facial features, growth retardation and abnormal heart, and the proband in family 3 had growth retardation and abnormal electrocardiogram. Genetic testing of three families detected three heterozygous mutations in the PTPN11 gene: c.1391G>C (p.Gly464Ala), c.1510A>G (p.Met504Val), c.1502G>A (p.Arg501Lys). All three sites were missense mutations, and the mutation sites were highly conserved among multiple homologous species. Based on clinical manifestations and genetic test results, proband 1 was diagnosed with multiple lentigines Noonan syndrome, and probands 2 and 3 were diagnosed with Noonan syndrome. Conclusion: Missense mutations in the PTPN11 gene may be the cause of the disease in the three deaf families. This study enriches the clinical phenotype and mutation spectrum of the PTPN11 gene in the Chinese population.
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Affiliation(s)
- Y Gao
- Department of Otorhinolaryngology Head and Neck Surgery, Kunming Children's Hospital, Kunming 650228, China
| | - Z C Li
- Department of Otorhinolaryngology Head and Neck Surgery, Kunming Children's Hospital, Kunming 650228, China
| | - X L Ma
- Department of Otorhinolaryngology Head and Neck Surgery, Kunming Children's Hospital, Kunming 650228, China
| | - Y Q Gao
- Department of Otorhinolaryngology Head and Neck Surgery, Kunming Children's Hospital, Kunming 650228, China
| | - Y Xiao
- Department of Otorhinolaryngology Head and Neck Surgery, Kunming Children's Hospital, Kunming 650228, China
| | - X Dai
- Department of Otorhinolaryngology Head and Neck Surgery, Kunming Children's Hospital, Kunming 650228, China
| | - J Ma
- Department of Otorhinolaryngology Head and Neck Surgery, Kunming Children's Hospital, Kunming 650228, China Kunming Key Laboratory for Prevention and Control of Congenital Birth Defects of Children, Kunming 650228, China
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30
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Xu M, Li G, Guo Y, Gao Y, Zhu L, Liu Z, Tian R, Gao C, Han P, Wang N, Guo F, Bao J, Jia C, Feng H, Huang L. A fungal microRNA-like RNA subverts host immunity and facilitates pathogen infection by silencing two host receptor-like kinase genes. New Phytol 2022; 233:2503-2519. [PMID: 34981514 DOI: 10.1111/nph.17945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
Small RNAs (sRNAs) play important roles in various biological processes by silencing their corresponding target genes in most eukaryotes. However, cross-kingdom regulation mediated by fungal microRNA-like RNAs (milRNAs) in plant-pathogen interactions is still largely unknown. Using molecular, genetic, histological, and biochemical approaches, we found that the apple tree Valsa canker pathogen Valsa mali milRNA Vm-milR1 could suppress the host immunity by silencing two host receptor-like kinase genes, MdRLKT1 and MdRLKT2. Vm-milR1 was highly induced during V. mali infection. Deletion of Vm-milR1 precursor abolished the generation of Vm-milR1 and reduced the virulence of V. mali. Inoculation of Vm-milR1 deletion mutants induced the host defence responses, including reactive oxygen species (ROS) accumulation, callose deposition, and high expression of defence-related genes. Furthermore, Vm-milR1 was confirmed to be able to suppress the expression of MdRLKT1 and MdRLKT2 in a sequence-specific manner. Moreover, overexpression of either MdRLKT1 or MdRLKT2 enhanced apple resistance to V. mali by activating the host defence responses. Furthermore, knockdown of MdRLKT1 or MdRLKT2 compromised the host resistance to V. mali. Our study revealed that V. mali was equipped with Vm-milR1 as an sRNA effector to silence host receptor-like kinase genes, suppress the host defence responses, and facilitate pathogen infection.
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Affiliation(s)
- Ming Xu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Guangyao Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yan Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yuqi Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Lihua Zhu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zhaoyang Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Runze Tian
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Chen Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Pengliang Han
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Ning Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Feiran Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jiyuan Bao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Conghui Jia
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Hao Feng
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Lili Huang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
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Sun J, Gao Y, Zhu X, Lu Z, Lu Y. Enhanced antimicrobial activity against
Alicyclobacillus acidoterrestris
in apple juice by genome shuffling of
Lactobacillus acidophilus
NX2
‐6. J Food Saf 2022. [DOI: 10.1111/jfs.12970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jing Sun
- College of Food Science and Engineering Nanjing University of Finance and Economics Nanjing China
| | - Yuqi Gao
- College of Food Science and Technology Nanjing Agricultural University Nanjing China
| | - Xiaoyu Zhu
- College of Food Science and Technology Nanjing Agricultural University Nanjing China
| | - Zhaoxin Lu
- College of Food Science and Technology Nanjing Agricultural University Nanjing China
| | - Yingjian Lu
- College of Food Science and Engineering Nanjing University of Finance and Economics Nanjing China
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Chen H, Hu K, Liang Y, Gao Y, Zeng C, Xu K, Shi X, Li L, Yin Y, Qiao Y, Qiu Y, Liu Q, Wang Z. Ample dietary fat reduced the risk of primary vesical calculi by inducing macrophages to engulf budding crystals in mice. Acta Pharm Sin B 2022; 12:747-758. [PMID: 35256944 PMCID: PMC8897024 DOI: 10.1016/j.apsb.2021.08.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/11/2021] [Accepted: 07/09/2021] [Indexed: 11/16/2022] Open
Abstract
Although primary vesical calculi is an ancient disease, the mechanism of calculi formation remains unclear. In this study, we established a novel primary vesical calculi model with d,l-choline tartrate in mice. Compared with commonly used melamine and ethylene glycol models, our model was the only approach that induced vesical calculi without causing kidney injury. Previous studies suggest that proteins in the daily diet are the main contributors to the prevention of vesical calculi, yet the effect of fat is overlooked. To assay the relationship of dietary fat with the formation of primary vesical calculi, d,l-choline tartrate-treated mice were fed a high-fat, low-fat, or normal-fat diet. Genetic changes in the mouse bladder were detected with transcriptome analysis. A high-fat diet remarkably reduced the morbidity of primary vesical calculi. Higher fatty acid levels in serum and urine were observed in the high-fat diet group, and more intact epithelia in bladder were observed in the same group compared with the normal- and low-fat diet groups, suggesting the protective effect of fatty acids on bladder epithelia to maintain its normal histological structure. Transcriptome analysis revealed that the macrophage differentiation-related gene C–X–C motif chemokine ligand 14 (Cxcl14) was upregulated in the bladders of high-fat diet-fed mice compared with those of normal- or low-fat diet-fed mice, which was consistent with histological observations. The expression of CXCL14 significantly increased in the bladder in the high-fat diet group. CXCL14 enhanced the recruitment of macrophages to the crystal nucleus and induced the transformation of M2 macrophages, which led to phagocytosis of budding crystals and prevented accumulation of calculi. In human bladder epithelia (HCV-29) cells, high fatty acid supplementation significantly increased the expression of CXCL14. Dietary fat is essential for the maintenance of physiological functions of the bladder and for the prevention of primary vesical calculi, which provides new ideas for the reduction of morbidity of primary vesical calculi.
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Zhang X, Liu Y, Deng J, Xia J, Zhang Q, Chen X, Liu R, Gao Y, Gao JM. Structurally Diverse Sesquiterpenoid Glycoside Esters from Pittosporum qinlingense with Anti-neuroinflammatory Activity. J Nat Prod 2022; 85:115-126. [PMID: 34978437 DOI: 10.1021/acs.jnatprod.1c00544] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Thirteen new sesquiterpenoid glycoside esters, including 11 aromadendrane-type compounds, pitqinlingosides A-K (1-11), one cadinane-type compound, pitqinlingoside L (12), and one eudesmane-type compound, pitqinlingoside M (13), together with seven known analogues (14-20) were isolated from the twigs, fruits, and leaves of Pittosporum qinlingense. Structures were elucidated by analysis of spectroscopic data, gas chromatography mass spectrometry (GC-MS), and chemical methods. The absolute configuration was confirmed by single-crystal X-ray crystallography analysis or electronic circular dichroism spectra. Unusual glycoside esters are characterized by the presence of polyacylated β-d-fucopyranosyl, β-d-glucopyranosyl, and β-d-xylopyranosyl units. Pitqinlingosides A (1), B (2), D (4), and F (6), pittosporanoside A1 acetate (14), and pittosporanoside A1 (16) showed significant nitric oxide production inhibition in lipopolysaccharide (LPS)-induced BV-2 microglial cells with IC50 values ranging from 0.95 to 24.12 μM. Structure-activity relationships of the isolated compounds are discussed.
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Affiliation(s)
- Xiuyun Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Yao Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Jili Deng
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Jiankai Xia
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Qiang Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Xin Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Runze Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Yuqi Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
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Xue H, Lu J, Yan H, Huang J, Luo HB, Wong MS, Gao Y, Zhang X, Guo L. γ-Glutamyl transpeptidase-activated indole-quinolinium based cyanine as a fluorescence turn-on nucleolus-targeting probe for cancer cell detection and inhibition. Talanta 2022; 237:122898. [PMID: 34736714 DOI: 10.1016/j.talanta.2021.122898] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 09/10/2021] [Accepted: 09/19/2021] [Indexed: 01/02/2023]
Abstract
A nucleolus as a prominent sub-nuclear, membraneless organelle plays a crucial role in ribosome biogenesis, which is in the major metabolic demand in a proliferating cell, especially in aggressive malignancies. We develop a γ-glutamyltranspeptidase (GGT)-activatable indole-quinolinium (QI) based cyanine consisting of a novel tripeptide fragment (Pro-Gly-Glu), namely QI-PG-Glu as a turn-on red fluorescent probe for the rapid detection of GGT-overexpressed A549 cancer cells in vivo. QI-PG-Glu can be triggered by GGT to rapidly release an activated fluorophore, namely HQI, in two steps including the cleavage of the γ-glutamyl group recognized by GGT and the rapid self-driven cyclization of the Pro-Gly linker. HQI exhibits dramatically red fluorescence upon binding to rRNA for imaging of nucleolus in live A549 cells. HQI also intervenes in rRNA biogenesis by declining the RNA Polymerase I transcription, thus resulting in cell apoptosis via a p53 dependent signaling pathway. Our findings may provide an alternative avenue to develop multifunctional cancer cell-specific nucleolus-targeting fluorescent probes with potential anti-cancer effects.
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Affiliation(s)
- Huanxin Xue
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Jiaye Lu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Hongwei Yan
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Ju Huang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Hai-Bin Luo
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Man Shing Wong
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - Yuqi Gao
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China.
| | - Xiaolei Zhang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China.
| | - Lei Guo
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China.
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Xu C, Xiao Z, Wang J, Lai H, Zhang T, Guan Z, Xia M, Chen M, Ren L, He Y, Gao Y, Zhao C. Discovery of a Potent Glutathione Peroxidase 4 Inhibitor as a Selective Ferroptosis Inducer. J Med Chem 2021; 64:13312-13326. [PMID: 34506134 DOI: 10.1021/acs.jmedchem.1c00569] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Potent and selective ferroptosis regulators promote an intensive understanding of the regulation and mechanisms underlying ferroptosis, which is highly associated with various diseases. In this study, through a stepwise structure optimization, a potent and selective ferroptosis inducer was developed targeting to inhibit glutathione peroxidase 4 (GPX4), and the structure-activity relationship (SAR) of these compounds was uncovered. Compound 26a exhibited outstanding GPX4 inhibitory activity with a percent inhibition up to 71.7% at 1.0 μM compared to 45.9% of RSL-3. At the cellular level, 26a could significantly induce lipid peroxide (LPO) increase and effectively induce ferroptosis with satisfactory selectivity (the value of 31.5). The morphological analysis confirmed the ferroptosis induced by 26a. Furthermore, 26a significantly restrained tumor growth in a mouse 4T1 xenograft model without obvious toxicity.
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Affiliation(s)
- Congjun Xu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Zhanghong Xiao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Jing Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Hualu Lai
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Tao Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Zilin Guan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Meng Xia
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Meixu Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Lingling Ren
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Yuanfeng He
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Yuqi Gao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Chunshun Zhao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
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Liang Y, Gao Y, Hua R, Lu M, Chen H, Wang Z, Li L, Hu K, Yin Y, Xu K, Gao H, Liu Q, Qiu Y, Wang Z. Calorie intake rather than food quantity consumed is the key factor for the anti-aging effect of calorie restriction. Aging (Albany NY) 2021; 13:21526-21546. [PMID: 34493691 PMCID: PMC8457579 DOI: 10.18632/aging.203493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 08/17/2021] [Indexed: 11/25/2022]
Abstract
Although calorie restriction has been reported to extend lifespan in several organisms, animals subjected to calorie restriction consume not only fewer calories but also smaller quantities of food. Whether it is the overall restriction of calories or the coincidental reduction in the quantity of food consumed that mediates the anti-aging effects is unclear. Here, we subjected mice to five dietary interventions. We showed that both calorie and quantity restriction could improve early survival, but no maximum lifespan extension was observed in the mice fed isocaloric diet in which food quantity was reduced. Mice fed isoquant diet with fewer calories showed maximum lifespan extension and improved health among all the groups, suggesting that calorie intake rather than food quantity consumed is the key factor for the anti-aging effect of calorie restriction. Midlife liver gene expression correlations with lifespan revealed that calorie restriction raised fatty acid biosynthesis and metabolism and biosynthesis of amino acids but inhibited carbon metabolism, indicating different effects on fatty acid metabolism and carbohydrate metabolism. Our data illustrate the effects of calories and food quantity on the lifespan extension by calorie restriction and their potential mechanisms, which will provide guidance on the application of calorie restriction to humans.
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Affiliation(s)
- Yaru Liang
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, P.R. China
| | - Yuqi Gao
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, P.R. China
| | - Rui Hua
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, P.R. China
| | - Maoyang Lu
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, P.R. China
| | - Huiling Chen
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, P.R. China
| | - Zhuoran Wang
- Department of Anesthesiology, School of Medicine, Duke University, Durham, NC 27708, USA
| | - Liyuan Li
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, P.R. China
| | - Kaiqiang Hu
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, P.R. China
| | - Yuemiao Yin
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, P.R. China
| | - Kang Xu
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, P.R. China
| | - Hongqi Gao
- School of Medicine, Tsinghua University, Beijing 100084, P.R. China
| | - Qingfei Liu
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, P.R. China
| | - Ying Qiu
- School of Medicine, Tsinghua University, Beijing 100084, P.R. China
| | - Zhao Wang
- MOE Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, P.R. China
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Wang S, Wang Y, Liu C, Xu G, Gao W, Hao J, Zhang M, Wu G, Yang Y, Huang J, Ni B, Chen D, Gao Y. EPAS1 (Endothelial PAS Domain Protein 1) Orchestrates Transactivation of Endothelial ICAM1 (Intercellular Adhesion Molecule 1) by Small Nucleolar RNA Host Gene 5 (SNHG5) to Promote Hypoxic Pulmonary Hypertension. Hypertension 2021; 78:1080-1091. [PMID: 34455812 DOI: 10.1161/hypertensionaha.121.16949] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Shouxian Wang
- Institute of Medicine and Equipment for High Altitude Region (S.W., Y.W., C.L., G.X., W.G., J. Hao, G.W., Y.G.), College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing (S.W., Y.W., C.L., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.).,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China (S.W., Y.W., C.L., G.X., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.)
| | - Yu Wang
- Institute of Medicine and Equipment for High Altitude Region (S.W., Y.W., C.L., G.X., W.G., J. Hao, G.W., Y.G.), College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing (S.W., Y.W., C.L., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.).,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China (S.W., Y.W., C.L., G.X., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.)
| | - Chang Liu
- Institute of Medicine and Equipment for High Altitude Region (S.W., Y.W., C.L., G.X., W.G., J. Hao, G.W., Y.G.), College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing (S.W., Y.W., C.L., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.).,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China (S.W., Y.W., C.L., G.X., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.)
| | - Gang Xu
- Institute of Medicine and Equipment for High Altitude Region (S.W., Y.W., C.L., G.X., W.G., J. Hao, G.W., Y.G.), College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China (S.W., Y.W., C.L., G.X., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.)
| | - Wenxiang Gao
- Institute of Medicine and Equipment for High Altitude Region (S.W., Y.W., C.L., G.X., W.G., J. Hao, G.W., Y.G.), College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing (S.W., Y.W., C.L., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.).,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China (S.W., Y.W., C.L., G.X., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.)
| | - Jiale Hao
- Institute of Medicine and Equipment for High Altitude Region (S.W., Y.W., C.L., G.X., W.G., J. Hao, G.W., Y.G.), College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing (S.W., Y.W., C.L., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.).,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China (S.W., Y.W., C.L., G.X., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.)
| | - Mengjie Zhang
- Department of Pathophysiology (M.Z., B.N., D.C.), College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing (S.W., Y.W., C.L., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.).,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China (S.W., Y.W., C.L., G.X., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.)
| | - Gang Wu
- Institute of Medicine and Equipment for High Altitude Region (S.W., Y.W., C.L., G.X., W.G., J. Hao, G.W., Y.G.), College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing (S.W., Y.W., C.L., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.).,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China (S.W., Y.W., C.L., G.X., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.)
| | - Yidong Yang
- Department of High Altitude Physiology and Pathology (Y.Y., J. Huang), College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing (S.W., Y.W., C.L., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.).,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China (S.W., Y.W., C.L., G.X., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.)
| | - Jian Huang
- Department of High Altitude Physiology and Pathology (Y.Y., J. Huang), College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing (S.W., Y.W., C.L., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.).,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China (S.W., Y.W., C.L., G.X., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.)
| | - Bing Ni
- Department of Pathophysiology (M.Z., B.N., D.C.), College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing (S.W., Y.W., C.L., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.).,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China (S.W., Y.W., C.L., G.X., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.)
| | - Dewei Chen
- Department of Pathophysiology (M.Z., B.N., D.C.), College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing (S.W., Y.W., C.L., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.).,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China (S.W., Y.W., C.L., G.X., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.)
| | - Yuqi Gao
- Institute of Medicine and Equipment for High Altitude Region (S.W., Y.W., C.L., G.X., W.G., J. Hao, G.W., Y.G.), College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing (S.W., Y.W., C.L., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.).,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China (S.W., Y.W., C.L., G.X., W.G., J. Hao, M.Z., G.W., Y.Y., J. Huang, B.N., D.C., Y.G.)
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Li S, Shi J, Gao Y, Zhang X, Fan J, Wang B. Acoustic scattering by a finite-length elastic elliptical cylinder in a plane wave. J Acoust Soc Am 2021; 150:1381. [PMID: 34470289 DOI: 10.1121/10.0005933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 08/01/2021] [Indexed: 06/13/2023]
Abstract
In this paper, based on the deformed cylinder method, the expression of the far-field acoustic scattering form function of a finite-length elastic elliptical cylinder is obtained. The target strength of elastic aluminum and polymethylmethacrylate (PMMA) elliptical cylinders, with different lengths varying with dimensionless frequency ka, is studied for different incident angles. In addition, the change of the target strength of a PMMA elliptical cylinder with incident angle is explored theoretically and experimentally when the frequency range is 20-40 kHz. Simulation results show that there is almost no change in the peak of the curve of the backscattering target strength versus frequency for a finite-length elastic elliptical cylinder with different lengths. As the length decreases, the target strength gradually decreases. When the theoretical simulation results are compared with the experimental results, it is found that the theoretical predictions are in good agreement with the experimental results. Furthermore, the study will provide theoretical and experimental basis for the prediction and recognition of underwater targets.
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Affiliation(s)
- Shuyuan Li
- Shaanxi Key Laboratory of Ultrasonics, School of Physics & Information Technology, Shaanxi Normal University, Xi'an, 710119, China
| | - Jingyao Shi
- Shaanxi Key Laboratory of Ultrasonics, School of Physics & Information Technology, Shaanxi Normal University, Xi'an, 710119, China
| | - Yuqi Gao
- Shaanxi Key Laboratory of Ultrasonics, School of Physics & Information Technology, Shaanxi Normal University, Xi'an, 710119, China
| | - Xiaofeng Zhang
- Shaanxi Key Laboratory of Ultrasonics, School of Physics & Information Technology, Shaanxi Normal University, Xi'an, 710119, China
| | - Jun Fan
- State Key Laboratory of Ocean Engineering, Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Bin Wang
- State Key Laboratory of Ocean Engineering, Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai, 200240, China
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Sun B, He S, Liu B, Xu G, Guoji E, Feng L, Xu L, Chen D, Zhao W, Chen J, Gao Y, Zhang E. Stanniocalcin-1 Protected Astrocytes from Hypoxic Damage Through the AMPK Pathway. Neurochem Res 2021; 46:2948-2957. [PMID: 34268656 DOI: 10.1007/s11064-021-03393-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 06/04/2021] [Accepted: 07/01/2021] [Indexed: 12/18/2022]
Abstract
Our previous studies revealed that the expression of stanniocalcin-1 (STC1) in astrocytes increased under hypoxic conditions. However, the role of STC1 in hypoxic astrocytes is not well understood. In this work, we first showed the increased expression of STC1 in astrocyte cell line and astrocytes in the brain tissues of mice after exposure to hypoxia. Then, we found that knockdown of STC1 inhibited cell viability and increased apoptosis. These effects were mediated by decreasing the levels of SIRT3, UCP2, and glycolytic genes and increasing the levels of ROS. Further studies suggested that STC1 silencing promoted oxidative stress and suppressed glycolysis by downregulating AMPKα1. Moreover, HIF-1α knockdown in hypoxic astrocytes led to decreased expression of STC1 and AMPKα1, indicating that the expression of STC1 was regulated by HIF-1α. In conclusion, our study showed that HIF-1α-induced STC1 could protect astrocytes from hypoxic damage by regulating glycolysis and redox homeostasis in an AMPKα1-dependent manner.
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Affiliation(s)
- Binda Sun
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Shu He
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Bao Liu
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Gang Xu
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Guoji E
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Lan Feng
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Licong Xu
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Dewei Chen
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China.,Department of Pathophysiology, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
| | - Wenqi Zhao
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Jian Chen
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Yuqi Gao
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China. .,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China. .,Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China. .,, Number 30, Gaotanyan Street, District of Shapingba, Chongqing, 400038, China.
| | - Erlong Zhang
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China. .,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China. .,Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China. .,, Number 30, Gaotanyan Street, District of Shapingba, Chongqing, 400038, China.
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Xie H, Xu G, Aa J, Gu S, Gao Y. Modulation of Perturbed Cardiac Metabolism in Rats Under High-Altitude Hypoxia by Combination Treatment With L-carnitine and Trimetazidine. Front Physiol 2021; 12:671161. [PMID: 34262472 PMCID: PMC8273437 DOI: 10.3389/fphys.2021.671161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 06/04/2021] [Indexed: 11/28/2022] Open
Abstract
High-altitude hypoxia has long been recognized as a vital etiology for high-altitude illnesses. High-altitude myocardial injury (HAMI) usually occurs in people who suffered from high-altitude exposure. To date, the molecular mechanism of HAMI remains elusive, which seriously hinders the prevention and treatment of HAMI. L-carnitine and trimetazidine are classic cardiovascular protective medicines. In this study, we used the metabolomic method, based on GC/MS, to explore the changes in metabolites in rats exposed to high-altitude hypoxia and then illustrate the metabolic pathways associated with the modulatory effect of L-carnitine combined with trimetazidine on rats with high-altitude exposure. The results showed that metabolites in the myocardium in rats under high-altitude hypoxia were markedly changed, such as branched-chain amino acids (BCAA, leucine, isoleucine, and valine), taurine, succinic acid, fumaric acid, lactic acid, pyruvic acid, 3-hydroxybutyrate, and docosahexaenoic acid (DHA), while L-carnitine combined with trimetazidine modulated and improved the abnormal changes in energy substances caused by high-altitude hypoxia. L-carnitine mainly promoted the metabolism of fatty acids, while trimetazidine enhanced the glycolysis process. The combined administration of the two components not only increased the metabolism of fatty acids but also promoted aerobic glycolysis. Meanwhile, it contributed to the decrease in the elevation in some of the intermediates of the tricarboxylic acid (TCA) cycle, decrease in the production of 3-hydroxybutyric acid, and relief of the abnormal energy metabolism process in organisms and the cardiac tissue. Our analysis delineates the landscape of the metabolites in the myocardial tissue of rats that were exposed to high altitude. Moreover, L-carnitine combined with trimetazidine can relieve the HAMI through modulated and improved abnormal changes in energy substances caused by high-altitude hypoxia.
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Affiliation(s)
- Hebing Xie
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Changzhou Shanmei Pharmaceutical Research and Development Center Co., Ltd., Changzhou, China
| | - Gang Xu
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jiye Aa
- Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| | - Shuhua Gu
- Changzhou Shanmei Pharmaceutical Research and Development Center Co., Ltd., Changzhou, China
| | - Yuqi Gao
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
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Gao Y, Niu M, Yu X, Bao T, Wu Z, Zhao X. Horizontally Acquired Polysaccharide-Synthetic Gene Cluster From Weissella cibaria Boosts the Probiotic Property of Lactiplantibacillus plantarum. Front Microbiol 2021; 12:692957. [PMID: 34234766 PMCID: PMC8256895 DOI: 10.3389/fmicb.2021.692957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 05/31/2021] [Indexed: 11/13/2022] Open
Abstract
Lactiplantibacillus plantarum are probiotic bacteria, maintaining the integrity of the gastrointestinal epithelial barrier, and preventing the infection of pathogenic bacteria. Exopolysaccharides (EPSs) are often involved in the probiotic property of L. plantarum. Here, we identified a new EPS-synthetic gene cluster, cpsWc, carrying 13 genes, laid on a large plasmid in a well-characterized probiotic L. plantarum strain LTC-113. The cpsWc gene cluster was horizontally acquired from Weissella cibaria, enhancing the biofilm formation ability of the host strain and its tolerance to harsh environmental stresses, including heat, acid, and bile. Transfer of cpsWc also conferred the probiotic properties to other L. plantarum strains. Moreover, cpsWc strengthened the adhesion of LTC-113 to intestinal epithelial cells. Both the cpsWc-carrying LTC-113 and its EPSs per se effectively attenuated the LPS-induced pro-inflammatory effect of intestinal epithelial cells, and inhibited the adhesion of pathogenic bacteria, such as S. typhimurium and E. coli by exclusion and competition. The newly identified cpsWc gene cluster emphasized the contribution of mobile EPS-synthetic element on the probiotic activity of L. plantarum, and shed a light on the engineering of probiotic bacteria.
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Affiliation(s)
- Yuqi Gao
- College of Animal Science and Technology, Northwest A&F University, Yangling District, China
| | - Mingze Niu
- College of Animal Science and Technology, Northwest A&F University, Yangling District, China
| | - Xiaohui Yu
- College of Animal Science and Technology, Northwest A&F University, Yangling District, China
| | - Tingting Bao
- College of Animal Science and Technology, Northwest A&F University, Yangling District, China
| | - Zhaowei Wu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Xin Zhao
- College of Animal Science and Technology, Northwest A&F University, Yangling District, China.,Department of Animal Science, McGill University, Montreal, QC, Canada
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42
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Liu Y, Hu Y, Hu Y, Gao Y, Liu Z. Water quality characteristics and assessment of Yongding New River by improved comprehensive water quality identification index based on game theory. J Environ Sci (China) 2021; 104:40-52. [PMID: 33985743 DOI: 10.1016/j.jes.2020.10.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 06/12/2023]
Abstract
The Yongding New River is essential for the water supplies of Tianjin. To date, there is no comprehensive report that assesses the year-round water quality of the Yongding New River Main stream. Moreover, little attention has been given to determining a combined weight for improving the traditional comprehensive water quality identification index (ICWQII) by the game theory. Seven water quality parameters were investigated monthly along the main stream of the Yongding New River from May 2018 to April 2019. Organic contaminants and nitrogen pollution were mainly caused by point sources pollution, and the total phosphorus mainly by non-point source pollution. Dramatic spatio-temporal variations of water quality parameters were jointly caused by different pollutant sources and hydrometeorological factors. In terms of this study, an improved comprehensive water quality identification index (ICWQII) based on entropy weight or variation coefficient and traditional CWQII underestimated the water qualities, and an ICWQII based on the superstandard multiple method overvalued the assessments. By contrast, water qualities assessments done with an ICWQII based on the game theory matched perfectly with the practical situation. The ICWQII based on game theory proposed in this study takes into account not only the degree of disorder and variation of water quality data, but also the influence of standard-exceeded pollution indicators, whose results are relatively reasonable. All findings and the ICWQII based on game theory can provide scientific support for decisions related to the water environment management of the Yongding New River and other waters.
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Affiliation(s)
- Yu Liu
- School of Earth System Science, Institute of Surface-Earth System Science, Tianjin University, Tianjin 300072, China; Tianjin Hydraulic Science Research Institute, Tianjin 300061, China.
| | - Yucheng Hu
- Tianjin Hydraulic Science Research Institute, Tianjin 300061, China
| | - Yumei Hu
- School of Mathematics, Tianjin University, Tianjin 300072, China
| | - Yuqi Gao
- School of Mathematics, Tianjin University, Tianjin 300072, China
| | - Zhenying Liu
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300191, China
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43
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Zhang Z, Lin Y, Li Z, Dong G, Gao Y, Ma S, Li J, Du L, Li M. Bright chemiluminescent dioxetane probes for the detection of gaseous transmitter H 2S. Bioorg Med Chem Lett 2021; 46:128148. [PMID: 34058342 DOI: 10.1016/j.bmcl.2021.128148] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/18/2021] [Accepted: 05/25/2021] [Indexed: 01/29/2023]
Abstract
Hydrogen sulfide (H2S), the third gaseous transmitter after CO and NO, is a double-edged sword in the human body. A specific concentration of H2S can attenuate myocardial ischemia-reperfusion injury by preserving mitochondrial function, in contrast, cause illness, including inflammation and stroke. There are already some probes for the real-time monitoring of the level of H2S in the biological environment. However, they have some disadvantages, such as phototoxicity, low sensitivity, and low quantum yield. In this research, by linking 4-dinitrophenyl-ether (DNP), a specific recognition group for H2S, with a chemiluminophore 1,2-dioxetane, we designed and synthesized the probe SCL-1. To tackle the barrier that the traditional chemiluminescent group has a short emission wavelength and is not easy to penetrate deep tissues, an acrylonitrile electron-withdrawing substituent was installed to the ortho-position of the 1,2-dioxanol hydroxy group. According to the same design strategy as SCL-1, the probe SCL-2 was designed with the modified chemiluminescent group. Studies have shown that SCL-2 with electron-withdrawing acrylonitrile has higher luminescence quantum yield and high sensitivity than SCL-1, realizing real-time detection of H2S in vitro and in vivo. The LOD of SCL-2 was 0.185 μM, which was the best among the currently available luminescent probes for detecting H2S. We envisage that SCL-2 may be a practical toolbox for studying the biological functions of H2S and H2S-related diseases.
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Affiliation(s)
- Zheng Zhang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Yuxing Lin
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Zhenzhen Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Gaopan Dong
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Yuqi Gao
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Siyue Ma
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Jie Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Lupei Du
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Minyong Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China; State Key Laboratory of Microbial Technology, Shandong University, Jinan, Shandong 250100, China.
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Jia M, Zhang Y, Gao Y, Ma X. Effects of Medium Chain Fatty Acids on Intestinal Health of Monogastric Animals. Curr Protein Pept Sci 2021; 21:777-784. [PMID: 31889482 DOI: 10.2174/1389203721666191231145901] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 07/25/2019] [Accepted: 10/08/2019] [Indexed: 11/22/2022]
Abstract
Medium-chain fatty acids (MCFAs) are the main form of Medium Chain Triglycerides (MCTs) utilized by monogastric animals. MCFAs can be directly absorbed and supply rapid energy to promote the renewal and repair of intestinal epithelial cells, maintain the integrity of intestinal mucosal barrier function, and reduce inflammation and stress. In our review, we pay more attention to the role of MCFAs on intestinal microbiota and mucosa immunity to explore MCFA's positive effect. It was found that MCFAs and their esterified forms can decrease pathogens while increasing probiotics. In addition, being recognized via specific receptors, MCFAs are capable of alleviating inflammation to a certain extent by regulating inflammation and immune-related pathways. MCFAs may also have a certain value to relieve intestinal allergy and inflammatory bowel disease (IBD). Unknown mechanism of various MCFA characteristics still causes dilemmas in the application, thus MCFAs are used generally in limited dosages and combined with short-chain organic acids (SOAs) to attain ideal results. We hope that further studies will provide guidance for the practical use of MCFAs in animal feed.
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Affiliation(s)
- Manyi Jia
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University,
No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Yucheng Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University,
No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Yuqi Gao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University,
No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Xi Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University,
No. 2 Yuanmingyuan West Road, Beijing 100193, China
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45
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Gao Y, Huang J, Zhou Q, Liu R, Zhang S, Zhang C, Huang YY, Li Z, Huang L, Wu D, Wu Y, Xiao L, Guo L, Luo HB. Discovery of Highly Specific Catalytic-Site-Targeting Fluorescent Probes for Detecting Lysosomal PDE10A in Living Cells. ACS Chem Biol 2021; 16:857-863. [PMID: 33955736 DOI: 10.1021/acschembio.1c00018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A challenge for sensors targeting specific enzymes of interest in their native environment for direct imaging is that they rationally exploit a highly selective fluorescent probe with a high binding affinity to provide real-time detection. Immunohistochemical staining, proteomic analysis, or recent enzymatic fluorescent probes are not optimal for tracking specific enzymes directly in living cells. Herein, we introduce the concept of designing a highly effective fluorescent probe (BVQ1814) targeting phosphodiesterase 10A with a highly potent affinity and a >1000-fold subfamily selectivity by gaining insights into the three-dimensional structural information of the active site of the catalytic pocket. BVQ1814 showed an outstanding binding affinity for PDE10A in vitro and specifically detected PDE10A in living cells, indicating that most PDE10A was probably distributed in the lysosomes. We validated the PDE10A distribution in stable mCherry-PDE10A-overexpressing HepG2 cells. This probe delineated the profile of PDE10A in tissue sections and exhibited a remarkable therapeutic effect as a PDE10A inhibitor for treating pulmonary arterial hypertension. This concept will open up a new avenue for designing a highly effective fluorescent probe for tracking receptor proteins by taking full advantage of the structural information in the ligand-binding pocket of the target of interest.
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Affiliation(s)
- Yuqi Gao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Ju Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Qian Zhou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Runduo Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Sirui Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Chen Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yi-You Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Zhe Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Ling Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Deyan Wu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yinuo Wu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Lehui Xiao
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Lei Guo
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Hai-Bin Luo
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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46
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Liu X, Zhao C, Gao Y, Xu Y, Wang S, Li C, Xie Y, Chen P, Yang P, Yuan L, Wang X, Huang L, Ma F, Feng H, Guan Q. A multifaceted module of BRI1 ETHYLMETHANE SULFONATE SUPRESSOR1 (BES1)-MYB88 in growth and stress tolerance of apple. Plant Physiol 2021; 185:1903-1923. [PMID: 33793930 PMCID: PMC8133677 DOI: 10.1093/plphys/kiaa116] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 12/10/2020] [Indexed: 05/18/2023]
Abstract
The R2R3 transcription factor MdMYB88 has previously been reported to function in biotic and abiotic stress responses. Here, we identify BRI1 ETHYLMETHANE SULFONATE SUPRESSOR1 (MdBES1), a vital component of brassinosteroid (BR) signaling in apple (Malus × domestica) that directly binds to the MdMYB88 promoter, regulating the expression of MdMYB88 in a dynamic and multifaceted mode. MdBES1 positively regulated expression of MdMYB88 under cold stress and pathogen attack, but negatively regulated its expression under control and drought conditions. Consistently, MdBES1 was a positive regulator for cold tolerance and disease resistance in apple, but a negative regulator for drought tolerance. In addition, MdMYB88 participated in BR biosynthesis by directly regulating the BR biosynthetic genes DE ETIOLATED 2 (MdDET2), DWARF 4 (MdDWF4), and BRASSINOSTEROID 6 OXIDASE 2 (MdBR6OX2). Applying exogenous BR partially rescued the erect leaf and dwarf phenotypes, as well as defects in stress tolerance in MdMYB88/124 RNAi plants. Moreover, knockdown of MdMYB88 in MdBES1 overexpression (OE) plants decreased resistance to a pathogen and C-REPEAT BINDING FACTOR1 expression, whereas overexpressing MdMYB88 in MdBES1 OE plants increased expression of SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 3 (MdSPL3) and BR biosynthetic genes, suggesting that MdMYB88 contributes to MdBES1 function during BR biosynthesis and the stress response. Taken together, our results reveal multifaceted regulation of MdBES1 on MdMYB88 in BR biosynthesis and stress tolerance.
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Affiliation(s)
- Xiaofang Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Caide Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yuqi Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yao Xu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Shujin Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Chaoshuo Li
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yinpeng Xie
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Pengxiang Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Peizhi Yang
- College of Grassland Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Li Yuan
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiaofeng Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lili Huang
- College of Grassland Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Fengwang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Hao Feng
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Qingmei Guan
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
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Abstract
Background The hypoxia-inducible factor-1 (HIF-1) signaling pathway is an important topic in high-altitude medicine. Network analysis is a novel method for integrating information on different aspects and levels of biological networks. However, this method has not been used in research on the HIF-1 signaling pathway network. To introduce this method into HIF-1-related research fields and verify its feasibility and effectiveness, we used a network analytical method to explore the structural attributes of the HIF-1 signaling pathway network. Methods First, we analyzed the overall network of the HIF-1 signaling pathway using information retrieved from the Kyoto Encyclopedia of Genes and Genomes (KEGG). We performed topology analysis, centrality analysis, and subgroup analysis of the network. Then, we analyzed the core network based on the overall network analysis. We analyzed the properties of the topology, the bow-tie structure, and the structural complexity of the core network. Results We obtained topological structure diagrams and quantitative indicators of the overall and core networks of the HIF-1 signaling pathway. For the structure diagrams, we generated topology diagrams of the network and the bow-tie structure of the core network. As quantitative indicators, we identified topology, centrality, subgroups, the bow-tie structure, and structural complexity. The topology indicators were the number of nodes, the number of lines, the network diameter, and the network density. The centrality indicators were the degree, closeness, and betweenness. The cohesive subgroup indicator was the components of the network. The bow-tie structure indicators included the core, input, and tendril-like structures. The structural complexity indicators included a power-law fitting model and its scale parameter. Conclusions The core network could be extracted based on the subgroup analysis of the overall network of the HIF-1 signaling pathway. The critical elements of the network could be identified in the centrality analysis. The results of the study show the feasibility and effectiveness of the network analytical method used to explore the network properties of the HIF-1 signaling pathway and provide support for further research.
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Affiliation(s)
- Jianjie Li
- Department of Health Service, Army Medical University, Chongqing, Shapingba, China
| | - Yuqi Gao
- Institute of Medicine and Hygienic Equipment for High Altitude Region, Army Medical University, Chongqing, Shapingba, China
| | - Xuan Yu
- Department of Health Service, Army Medical University, Chongqing, Shapingba, China
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Gao Y, Hua H, Luo J. Analyzing public opinion on COVID-19 through different perspectives and stages. APSIPA Trans Signal Inf Process 2021; 10:e8. [PMID: 34191991 PMCID: PMC8082129 DOI: 10.1017/atsip.2021.5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 03/05/2021] [Indexed: 06/13/2023]
Abstract
In recent months, COVID-19 has become a global pandemic and had a huge impact on the world. People under different conditions have very different attitudes toward the epidemic. Due to the real-time and large-scale nature of social media, we can continuously obtain a massive amount of public opinion information related to the epidemic from social media. In particular, researchers may ask questions such as "how is the public reacting to COVID-19 in China during different stages of the pandemic?", "what factors affect the public opinion orientation in China?", and so on. To answer such questions, we analyze the pandemic-related public opinion information on Weibo, China's largest social media platform. Specifically, we have first collected a large amount of COVID-19-related public opinion microblogs. We then use a sentiment classifier to recognize and analyze different groups of users' opinions. In the collected sentiment-orientated microblogs, we try to track the public opinion through different stages of the COVID-19 pandemic. Furthermore, we analyze more key factors that might have an impact on the public opinion of COVID-19 (e.g. users in different provinces or users with different education levels). Empirical results show that the public opinions vary along with the key factors of COVID-19. Furthermore, we analyze the public attitudes on different public-concerning topics, such as staying at home and quarantine. In summary, we uncover interesting patterns of users and events as an insight into the world through the lens of a major crisis.
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Affiliation(s)
- Yuqi Gao
- University of Rochester, Rochester, NY, USA
| | - Hang Hua
- University of Rochester, Rochester, NY, USA
| | - Jiebo Luo
- University of Rochester, Rochester, NY, USA
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49
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Huang H, Xie S, Gu X, Xiang B, Zhong Z, Huang P, Gao Y, Li P. Higher Circulating miR-199a-5p Indicates Poor Aerobic Exercise Capacity and Associates With Cardiovascular Dysfunction During Chronic Exposure to High Altitude. Front Physiol 2021; 12:587241. [PMID: 33633582 PMCID: PMC7900411 DOI: 10.3389/fphys.2021.587241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 01/07/2021] [Indexed: 12/14/2022] Open
Abstract
Background Hypoxia-induced decline in exercise capacity is ubiquitous among lowlanders who immigrated to high altitudes, which severely reduces their work efficiency and quality of life. Although studies have revealed that hypoxia-induced cardiovascular dysfunction limits exercise capacity at high altitudes, the mechanisms have not been well explored at the molecular level. miR-199a-5p is hypoxia-sensitive and serves as an important regulator in cardiovascular pathophysiology. However, whether miR-199a-5p is involved in cardiovascular dysfunction at high altitudes and contributes to subsequent reductions in exercise capacity remains unknown. Thus, this study aimed at exploring these relationships in a high altitude population. Methods A total of 175 lowlanders who had immigrated to an altitude of 3,800 m 2 years previously participated in the present study. The level of plasma miR-199a-5p and the concentration of serum myocardial enzymes were detected by qRT-PCR and ELISA, respectively. Indices of cardiovascular function were examined by echocardiography. The exercise capacity was evaluated by Cooper’s 12-min run test and the Harvard Step Test. Furthermore, we explored the biological functions of miR-199a-5p with silico analysis and a biochemical test. Results The level of miR-199a-5p was significantly higher in individuals with poor exercise capacity at 3,800 m, compared with those with good exercise capacity (p < 0.001). miR-199a-5p accurately identified individuals with poor exercise capacity (AUC = 0.752, p < 0.001). The level of miR-199a-5p was positively correlated with cardiovascular dysfunction indices (all, p < 0.001). Furthermore, miR-199a-5p was involved in the oxidative stress process. Conclusion In this study, we reported for the first time that the level of circulating miR-199a-5p was positively associated with exercise capacity during chronic hypoxia at high altitudes. Moreover, higher miR-199a-5p was involved in hypoxia-induced cardiovascular dysfunctions, thus contributing to poorer exercise endurance at high altitudes.
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Affiliation(s)
- He Huang
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,College of High Altitude Military Medicine, Institute of Medicine and Equipment for High Altitude Region, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China
| | - Shenwei Xie
- Shigatse Branch, Second Affiliated Hospital (Xinqiao Hospital) of Army Medical University (Third Military Medical University), Tibet, China
| | - Xiaolan Gu
- Department of Infectious Diseases, First Affiliated Hospital of Army Medical University (Third Military Medical University), Chongqing, China
| | - Bin Xiang
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China
| | - Zhifeng Zhong
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China
| | - Pei Huang
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China
| | - Yuqi Gao
- College of High Altitude Military Medicine, Institute of Medicine and Equipment for High Altitude Region, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China
| | - Peng Li
- Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China
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50
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Feng H, Xu M, Gao Y, Liang J, Guo F, Guo Y, Huang L. Vm-milR37 contributes to pathogenicity by regulating glutathione peroxidase gene VmGP in Valsa mali. Mol Plant Pathol 2021; 22:243-254. [PMID: 33278058 PMCID: PMC7814965 DOI: 10.1111/mpp.13023] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 10/18/2020] [Accepted: 11/05/2020] [Indexed: 05/22/2023]
Abstract
MicroRNAs play important roles in various biological processes by regulating their corresponding target genes. However, the function and regulatory mechanism of fungal microRNA-like RNAs (milRNAs) are still largely unknown. In this study, a milRNA (Vm-milR37) was isolated and identified from Valsa mali, which causes the most serious disease on the trunk of apple trees in China. Based on the results of deep sequencing and quantitative reverse transcription PCR, Vm-milR37 was found to be expressed in the mycelium, while it was not expressed during the V. mali infection process. Overexpression of Vm-milR37 did not affect vegetative growth, but significantly decreased pathogenicity. Based on degradome sequencing, the target of Vm-milR37 was identified as VmGP, a glutathione peroxidase. The expression of Vm-milR37 and VmGP showed a divergent trend in V. mali-apple interaction samples and Vm-milR37 overexpression transformants. The expression of VmGP could be suppressed significantly by Vm-milR37 when coexpressed in tobacco leaves. Deletion of VmGP showed significantly reduced pathogenicity compared with the wild type. VmGP deletion mutants showed more sensitivity to hydrogen peroxide. Apple leaves inoculated with Vm-milR37 overexpression transformants and VmGP deletion mutant displayed increased accumulation of reactive oxygen species compared with the wild type. Thus, Vm-milR37 plays a critical role in pathogenicity by regulating VmGP, which contributes to the oxidative stress response during V. mali infection. These results provide important evidence to define the roles of milRNAs and their corresponding target genes in pathogenicity.
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Affiliation(s)
- Hao Feng
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
| | - Ming Xu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life SciencesNorthwest A&F UniversityYanglingChina
| | - Yuqi Gao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
| | - Jiahao Liang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
| | - Feiran Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
| | - Yan Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
| | - Lili Huang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant ProtectionNorthwest A&F UniversityYanglingChina
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