1
|
Deng Z, Ren C, Tang C, Chen S, Li J, Wei J, Zhang Q, Ma B. Syringin alleviates hepatic fibrosis by enhancing autophagic flux and attenuating ER stress-TRIB3/SMAD3 in diabetic mice. Tissue Cell 2023; 83:102159. [PMID: 37467688 DOI: 10.1016/j.tice.2023.102159] [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: 05/10/2023] [Revised: 06/25/2023] [Accepted: 07/11/2023] [Indexed: 07/21/2023]
Abstract
Type 2 diabetes mellitus (T2DM) is a key risk factor for the developing of metabolic liver injury and easily evolving to advanced fibrosis. Syringin (SYR), isolated from Acanthopanax senticosus, has anti-inflammatory, anti-oxidant, and anti-apoptotic properties. However, its hepatoprotective effects and mechanisms in T2DM-induced liver fibrosis remain unclear. Here, we investigated whether syringin (SYR) could serve as a therapeutic agent for liver fibrosis and its mechanism in high-fat diet (HFD)/streptozotocin (STZ)-induced type 2 diabetic mice. C57BL/6 mice were induced with T2DM via HFD and STZ injection and treated with different doses of SYR. Serum lipid parameters and liver function indicators were measured, and hepatic histology and fibrosis were examined. The mechanism of SYR was explored through molecular analyses Results demonstrated SYR improved oral glucose tolerance, decreased the levels of ALT, AST, and AKP, and reduced hepatic lipid deposition in diabetic mice. Moreover, SYR ameliorated epithelial-to-mesenchymal transition to reverse hepatic fibrosis via suppressing TRIB3-SMAD3 interaction to restrain nuclear localization of SMAD3. Strikingly, SYR reversed hyperglycemia-induced deficiency in autophagic flux by regulation of Raptor/mTORC1, triggering nuclear translocation of TFEB to improve autophagosome-lysosomal fusion. In brief, SYR potentially ameliorates hepatic injury and fibrosis by enhancing autophagic flux and inhibing TRIB3 activation in diabetic mice.
Collapse
Affiliation(s)
- Zhewen Deng
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, People's Republic of China
| | - Chaoxing Ren
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, People's Republic of China
| | - Chenglun Tang
- Nanjing Sheng Ming Yuan Health Technology Co.Ltd., Nanjing 210000, People's Republic of China
| | - Shuang Chen
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, People's Republic of China
| | - Jiaqi Li
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, People's Republic of China
| | - Jingxun Wei
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, People's Republic of China
| | - Qi Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, People's Republic of China.
| | - Bo Ma
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, People's Republic of China.
| |
Collapse
|
2
|
Jin D, Ren C, Guo Y, He K, Piao J, Ji Y, Li S. First Report of Tomato mottle mosaic virus infecting Chinese snake gourd (Trichosanthes kirilowii) in China. Plant Dis 2023. [PMID: 37157092 DOI: 10.1094/pdis-01-23-0161-pdn] [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] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Tomato mottled mosaic virus (ToMMV) was first identified in tomato in Mexico (Li et al. 2013). It belongs to the genus Tobamovirus and family Virgaviridae, and is a positive-sense single-stranded RNA virus. The viral genome contains about 6400 nucleotides, encoding four proteins, including the 126 K protein, 183 K protein, movement protein (MP) and coat protein (CP) (Tu et al. 2021). ToMMV mainly poses a serious risk to solanaceous crops. The virus-infected plants appear stunted growth and top necrosis, and the disease leaves show mottled, shrinkage and necrosis symptoms, resulting in a significant decline in tomato fruit yield and quality (Li et al. 2017; Tu et al. 2021). Chinese snake gourd (Trichosanthes kirilowii Maxim) is a perennial climbing herb in the family Cucurbitaceae, and the fruit, seed, peel and root can all be used as traditional Chinese medicine. In May of 2021, twenty-seven symptomless seedlings (developed from tissue culture plantlets) were randomly collected from nursery in Fengyang, Anhui Province. Total RNA of each sample was extracted, and RT-PCR was performed using degenerate tobamovirus primers Tob-Uni1 (5'-ATTTAAGTGGASGGAAAAVCACT-3') and Tob-Uni2 (5'-GTYGTT GATGAGTTCRTGGA-3') (Letschert et al. 2002). Amplicons with expected size were obtained from 6 of 27 samples and sequenced. Alignment results showed that the nucleotide sequence identities ranged from 98.7 to 100% with all ToMMV isolates deposited in NCBI GenBank. Then, ToMMV coat protein (CP) gene was amplified using specific primers CP-F (5'-ATGTCTTACGCTATTACTT CTCCG-3') and CP-R (5'-TTAGGACGCTGGCGCAGAAG-3'). The CP fragment was obtained and sequenced. Sequence alignment indicated that CP sequence of isolate FY (GenBank accession no. ON924176) exhibited a 100% identity with ToMMV isolate LN (MN853592.1). The anti-ToMMV polyclonal antibody (PAb) was prepared by the author (S.L.) by immunizing rabbit with purified virus from Nicotiana benthamiana, and serological tests (dot-enzyme linked immunosorbent assay, Dot-ELISA) of RNA-positive T. kirilowii leaf samples using anti-ToMMV PAb were also positive. To fulfill a Koch's postulate, a pure culture of ToMMV was obtained from N. benthamiana using infectious cDNA clone of ToMMV (Tu et al. 2021), and then healthy T. kirilowii plants were mechanically inoculated with a prepared inoculum from ToMMV-infected N. benthamiana, as described previously (Sui et al. 2017). T. kirilowii seedlings showed chlorosis and leaf tip necrosis symptoms at 10 and 20 day post-inoculation respectively, and ToMMV infection on symptomatic plants was also verified by RT-PCR detection using primers CP-F and CP-R. These results demonstrated that T. kirilowii is a host of ToMMV under natural conditions, which might threaten the production of this medicinal plant. The seedlings from nursery appeared to be asymptomatic, but the plants showed chlorosis and necrosis symptoms after indoor inoculation. In qRT-PCR analysis, viral accumulation level in greenhouse-inoculated plants was a 25.6-fold of that in field-collected samples, which may be the reason of different symptom expression between field samples and inoculated samples. ToMMV has now been detected from the solanaceous (tomato, pepper and eggplant) and leguminous (pea) crops in the field (Li et al. 2014; Ambrós et al. 2017; Zhang et al. 2022). To our knowledge, this is the first report of natural infection of ToMMV in T. kirilowii as well as its natural infection on Cucurbitaceae plants.
Collapse
Affiliation(s)
- Daoran Jin
- Jiangsu Academy of Agricultural Sciences, 117941, Institute of Plant Protection, Nanjing, Jiangsu, China;
| | - C Ren
- Jiangsu Academy of Agricultural Sciences, 117941, Institute of Plant Protection, Nanjing, Jiangsu, China;
| | - Yuqing Guo
- Jiangsu Academy of Agricultural Sciences, 117941, Institute of Plant Protection, Nanjing, China;
| | - Keqin He
- Anhui Science and Technology University, 177515, College of Agriculture, Fengyang, Anhui, China;
| | - Jun Piao
- Liaoning Normal University, 66523, School of Life Science, Dalian, Liaoning, China;
| | - Yinghua Ji
- Jiangsu Academy of Agricultural Sciences, 117941, Institute of Plant Protection, Nanjing, Jiangsu, China;
| | - Shuo Li
- Jiangsu Academy of Agricultural Sciences, 117941, Institute of Plant Protection, No.50 Zhongling Street, Xuanwu District, Nanjing, China, 210014;
| |
Collapse
|
3
|
Zhu L, Lang JH, Ren C, Zhang YL, Chen DJ, Chen L, Chen YL, Cui MH, Di W, Duan H, Hao M, Huang XH, Li PL, Mao YD, Qi HB, Shi HR, Song L, Wang YF, Xu KH, Xu XX, Xue X, Yang HX, Yao SZ, Zhang GN, Zhang HW, Zhang SL, Zhou HM, Zhou YF, Zhu WG. [The Chinese guideline for prevention of pelvic and abdominal adhesions after obstetric and gynecologic surgery (2023 edition)]. Zhonghua Fu Chan Ke Za Zhi 2023; 58:161-169. [PMID: 36935192 DOI: 10.3760/cma.j.cn112141-20220822-00523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
|
4
|
Liu H, Chen R, Li H, Lin J, Wang Y, Han M, Wang T, Wang H, Chen Q, Chen F, Chu P, Liang C, Ren C, Zhang Y, Yang F, Sheng Y, Wei J, Wu X, Yu G. Genome-wide identification and expression analysis of SlRR genes in response to abiotic stress in tomato. Plant Biol (Stuttg) 2023; 25:322-333. [PMID: 36457231 DOI: 10.1111/plb.13494] [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] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 11/15/2022] [Indexed: 06/17/2023]
Abstract
The cytokinin two-component signal transduction system (TCS) is involved in many biological processes, including hormone signal transduction and plant growth regulation. Although cytokinin TCS has been well characterized in Arabidopsis thaliana, its role in tomato remains elusive. In this study, we characterized the diversity and function of response regulator (RR) genes, a critical component of TCS, in tomato. In total, we identified 31 RR genes in the tomato genome. These SlRR genes were classified into three subgroups (type-A, type-B and type-C). Various stress-responsive cis-elements were present in the tomato RR gene promoters. Their expression responses under pesticide treatment were evaluated by transcriptome analysis. Their expression under heat, cold, ABA, salinity and NaHCO3 treatments was further investigated by qRT-PCR and complemented with the available transcription data under these treatments. Specifically, SlRR13 expression was significantly upregulated under salinity, drought, cold and pesticide stress and was downregulated under ABA treatment. SlRR23 expression was induced under salt treatment, while the transcription level of SlRR1 was increased under cold and decreased under salt stress. We also found that GATA transcription factors played a significant role in the regulation of SlRR genes. Based on our results, tomato SlRR genes are involved in responses to abiotic stress in tomato and could be implemented in molecular breeding approaches to increase resistance of tomato to environmental stresses.
Collapse
Affiliation(s)
- H Liu
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - R Chen
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - H Li
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - J Lin
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - Y Wang
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - M Han
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - T Wang
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - H Wang
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - Q Chen
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - F Chen
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - P Chu
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - C Liang
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - C Ren
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - Y Zhang
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - F Yang
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - Y Sheng
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - J Wei
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - X Wu
- Heilongjiang Bayi Agricultural University, Daqing, China
| | - G Yu
- Heilongjiang Bayi Agricultural University, Daqing, China
| |
Collapse
|
5
|
Wei J, Lu X, Bao X, Zhang C, Li J, Ren C, Zhu Z, Ma B, Zhang N, Jin X, Ma B. Aucubin supplementation alleviate diabetes induced-disruption of blood-testis barrier and testicular damage via stabilizing cell junction integrity. Eur J Pharmacol 2022; 938:175430. [PMID: 36460131 DOI: 10.1016/j.ejphar.2022.175430] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 04/30/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 11/30/2022]
Abstract
Disruption of blood-testis barrier (BTB) was a crucial pathological feature of diabetes induced-testicular injury at early phase. Aucubin (AU), a main active component in Eucommiae Cortex, has drawn attention for its benefits against male reproductive system disease. The current study was aimed at investigating the protective role of AU and exploring the underlying mechanism in diabetic model. A murine model of type 2 diabetes mellitus (T2DM) was induced by high-fat diet (HFD) combined with streptozocin (STZ). Testicular weight index and morphology, sperm quality, integrity of BTB and protein levels were analyzed. The underlying mechanism of the protective effect of AU was further explored in Sertoli cells (SCs) cultured with high glucose (HG). Our results showed AU inhibited testicular structural destruction, restored disruption of BTB and improved abnormal spermatogenic function in diabetic mice. Consistent with in vivo results, HG induced decreased transcellular resistance and increased permeability in SCs monolayers, while AU exposure reverses this trend. Meanwhile, reduced expression of Zonula occludin-1(ZO-1) and Connexin43(Cx43) in testicular tissue diabetic mice and HG-induced SCs was prominently reversed via AU treatment. Mechanistic studies suggested a high affinity interaction between AU and c-Src protein was identified based on molecular docking, and the activation of c-Src was significantly inhibited in AU treatment. Furthermore, AU significantly increased the expression of Cx43 and ZO-1 proteins HG-induced SCs, which can be further enhanced in gene-silenced c-Src cells to some extent. Our results suggested that AU ameliorated disruption of BTB and spermatogenesis dysfunction in diabetic mice via inactivating c-Src to stabilize cell junction integrity.
Collapse
Affiliation(s)
- Jingxun Wei
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Xuanzhao Lu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Xiaowen Bao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Chi Zhang
- Nanjing Tech University School of Economics & Management. Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Jiaqi Li
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Chaoxing Ren
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Zhiming Zhu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Beiting Ma
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Nan Zhang
- School of Chemical and Molecular Engineering, Nanjing Tech University, Nanjing, People's Republic of China
| | - Xin Jin
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Bo Ma
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China.
| |
Collapse
|
6
|
Cao SH, Patel D, Lees A, Stoeckl C, Rosenberg MJ, Gopalaswamy V, Wen H, Huang H, Shvydky A, Betti R, Ren C. Predicting hot electron generation in inertial confinement fusion with particle-in-cell simulations. Phys Rev E 2022; 106:055214. [PMID: 36559357 DOI: 10.1103/physreve.106.055214] [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: 02/16/2022] [Accepted: 11/14/2022] [Indexed: 11/30/2022]
Abstract
A series of two-dimensional particle-in-cell simulations with speckled laser drivers was carried out to study hot electron generation in direct-drive inertial confinement fusion on OMEGA. Scaling laws were obtained for hot electron fraction and temperature as functions of laser/plasma conditions in the quarter-critical region. Using these scalings and conditions from hydro simulations, the temporal history of hot electron generation can be predicted. The scalings can be further improved to predict hard x-rays for a collection of OMEGA warm target implosions within experimental error bars. These scalings can be readily implemented into inertial confinement fusion design codes.
Collapse
Affiliation(s)
- S H Cao
- Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627, USA.,Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627, USA
| | - D Patel
- Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627, USA.,Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627, USA
| | - A Lees
- Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627, USA
| | - C Stoeckl
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627, USA
| | - M J Rosenberg
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627, USA
| | - V Gopalaswamy
- Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627, USA.,Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627, USA
| | - H Wen
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627, USA
| | - H Huang
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627, USA
| | - A Shvydky
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627, USA
| | - R Betti
- Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627, USA.,Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627, USA.,Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - C Ren
- Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627, USA.,Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627, USA.,Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| |
Collapse
|
7
|
Wall B, Slaven J, Bozic M, Vanderpool C, Ren C, Sanders D. 202 Clinical characteristics of children with cystic fibrosis who receive gastrostomy tubes. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00892-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
8
|
Ostrenga J, Morgan W, Cromwell E, Ren C, Sanders D, Schechter M. 25 Impact of repeated non-treatment on long-term lung function. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00716-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
9
|
Ren C, Slaven J, Nasr S, McBennett K, Flask C. 116 Associations between lung T1 magnetic resonance imaging, chest computed tomography, and multiple-breath washout in young children with mild cystic fibrosis lung disease. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00807-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
10
|
Martiniano S, Wu R, Elbert A, Farrell P, Ren C, Sontag M, McColley S. 22 Characteristics of late diagnosis through newborn screening and effects on growth and pulmonary health outcomes in infants with cystic fibrosis. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00713-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
11
|
Mou YK, Ren C, Li YM, Yu GH, Zheng GB, Song H, Lu CX, Tian RX, Song XC. [Correlation analysis of clock genes and MEN2 medullary thyroid carcinoma]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1079-1086. [PMID: 36177562 DOI: 10.3760/cma.j.cn115330-20211225-00822] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To investigate the correlation between CLOCK and BMAL1 genes and MEN2 medullary thyroid carcinoma (MTC). Methods: Thirteen cases with MEN2 MTC and thirteen cases with non-MEN2 MTC were selected who were treated in the Yantai Yuhuangding Hospital between January 2013 and September 2021. Clinical indicators such as blood calcitonin level, tumor diameter and metastatic lymph node of patients were collected. The expression differences of CLOCK and BMAL1 between MEN2 MTC and para-carcinoma tissue as well as between MEN2 MTC and non-MEN2 MTC were detected by immunohistochemistry and qPCR. The correlation between lymph node metastasis and CLOCK or BMAL1 expression was analyzed. Protein-protein interaction (PPI) network analysis combined with qPCR and correlation analysis was used to explore the expression regulation relationship between RET and circadian clock genes. The rhythm disorder of MEN2 cells was verified by lipopolysaccharide cell stimulation experiment after dexamethasone rhythm synchronization. Results: MEN2 MTC exhibited typical RET gene mutation. The mean blood calcitonin level, the tumor diameter and the number of metastatic lymph nodes of patients with MEN2 MTC were higher than those of patients with non-MEN2 MTC (t value was 2.76, 2.53, 2.26, all P<0.05). Immunohistochemical results showed that the expression levels of CLOCK and BMAL1 in MEN2 MTC were higher than those in non-MEN2 MTC, while negatively expressed in para-cancerous thyroid follicle. qPCR displayed that the expression of CLOCK gene in cancer tissues was higher than that in non-MEN2 MTC and para-cancerous tissues (t value was 2.68 and 2.86, all P<0.05); the expression of BMAL1 gene in MEN2 MTC was higher than that in non-MEN2 MTC and para-cancerous tissues (t value was 2.21 and 2.35, all P<0.05). Correlation analysis showed that the expression levels of CLOCK and BMAL1 genes were positively correlated with the number of lymph node metastases in patients with MEN2 MTC (r=0.65, P<0.001; r=0.52, P=0.005). PPI network analysis indicated that the expression of CLOCK gene was positively correlated with the abnormal expression of RET gene (r=0.96, P<0.001). With lipopolysaccharide to stimulate cultured cells in vitro after dexamethasone rhythm synchronization, the expressions of CLOCK and BMAL1 in MEN2 MTC cells (0.47±0.22 and 2.60±1.48) at 12 hours of synchronization were significantly lower than those in para-cancerous tissues (1.70±1.62 and 8.23±2.52), the difference was statistically significant(t=5.04, P=0.007; t=3.34, P=0.029). Conclusion: CLOCK and BMAL1 are correlated with the occurrence and development of MEN2 MTC, and may be potential targets for the development of new therapeutic strategies for MEN2 MTC.
Collapse
Affiliation(s)
- Y K Mou
- Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai 264000, China State Key Laboratory of Oncology in South China, Guangzhou 510000, China
| | - C Ren
- Taishan Scholar Laboratory, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China Department of Neurology, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| | - Y M Li
- Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai 264000, China Taishan Scholar Laboratory, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| | - G H Yu
- Department of Pathology, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| | - G B Zheng
- Taishan Scholar Laboratory, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China Department of Thyroid Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| | - H Song
- Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| | - C X Lu
- Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| | - R X Tian
- Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| | - X C Song
- Department of Otorhinolaryngology, Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China Shandong Provincial Clinical Research Center for Otorhinolaryngologic Diseases, Yantai 264000, China Taishan Scholar Laboratory, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| |
Collapse
|
12
|
Ren C, Bao X, Lu X, Du W, Wang X, Wei J, Li L, Li X, Lin X, Zhang Q, Ma B. Complanatoside A targeting NOX4 blocks renal fibrosis in diabetic mice by suppressing NLRP3 inflammasome activation and autophagy. Phytomedicine 2022; 104:154310. [PMID: 35843189 DOI: 10.1016/j.phymed.2022.154310] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [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: 02/13/2022] [Revised: 06/22/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Diabetic nephropathy (DN) is an important cause of end-stage renal disease. Complanatoside A (CA), an active component from Semen Astragali Complanati, has been reported to be a potential candidate for the treatment of kidney diseases. However, the underlying mechanisms and protective effects of CA in DN remain unclear. PURPOSE In this paper, the effects and the mechanism of CA against ameliorating DN were investigated in vivo and in vitro. STUDY DESIGN Here, a high-fat diet/streptozotocin-induced diabetic model and TGF-β1-induced HK-2 cells were used to explore the protective effects and mechanisms of CA on DN in vivo and in vitro. METHODS Major biochemical indexes, Histopathological morphology, and Immunohistochemistry have explored the therapeutic effect of CA on DN. Subsequently, TGF-β1-induced HK-2 cells were utilized to investigate the anti-renal fibrosis effect of CA. Finally, the mechanism of CA against renal fibrosis was studied via western blotting, immunofluorescence, transfection, and molecular docking. RESULTS The results showed that CA attenuated glomerular hypertrophy, collagen matrix deposition, and tubular interstitial fibrosis in diabetic mice. Moreover, the activation of TGF-β1-inducible epithelial-mesenchymal transition (EMT) was hindered by CA treatment in HK-2 cells. Mechanistically, the data suggested that upregulated NOX4 during diabetes and TGF-β1 in HK-2 cells was prominently diminished after CA treatment. Furthermore, CA exposure inhibited NLRP3 inflammasome activation and downstream inflammation gene expression such as IL-18 and IL-1β in vivo and vitro. These findings indicated that CA obstructed the EMT to protect renal tubular epithelial cells against fibrosis via blocking NLRP3 activation, which was associated with inhibiting NOX4. Besides, the markedly raised autophagy levels in the diabetic model characterized by increasing LC3II/LC3I and Beclin1 were reversed after CA treatment, which is also a pivotal mechanism against renal fibrosis. More importantly, specific NOX4 overexpressed in HK-2 cells abolished that CA exposure blocked TGF-β1-induced-EMT, ROS generation, NLRP3, and autophagy activation. Meanwhile, the inhibition of cell migration, ROS generation, autophagy, and renal inflammation after CA treatment was more pronounced in NOX4-deficient HK-2 cells. CONCLUSION Our findings provided evidence that CA might be a potential therapeutic agent for DN by ameliorating NLRP3 inflammasome and autophagy activation via targeting NOX4 inhibition.
Collapse
Affiliation(s)
- Chaoxing Ren
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China
| | - Xiaowen Bao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China
| | - Xuanzhao Lu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China
| | - Wei Du
- Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing 210009, China
| | - Xiaoxuan Wang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China
| | - Jingxun Wei
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China
| | - Lin Li
- Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing 210009, China
| | - Xiaotian Li
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Xin Lin
- The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China.
| | - Qi Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China.
| | - Bo Ma
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China.
| |
Collapse
|
13
|
Bao X, Li J, Ren C, Wei J, Lu X, Wang X, Du W, Jin X, Ma B, Zhang Q, Ma B. Aucubin ameliorates liver fibrosis and hepatic stellate cells activation in diabetic mice via inhibiting ER stress-mediated IRE1α/TXNIP/NLRP3 inflammasome through NOX4/ROS pathway. Chem Biol Interact 2022; 365:110074. [PMID: 35961541 DOI: 10.1016/j.cbi.2022.110074] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 05/16/2022] [Revised: 07/15/2022] [Accepted: 07/24/2022] [Indexed: 11/03/2022]
Abstract
Type 2 diabetes (T2DM) is closely associated with hepatic injury, which could promote/exacerbate hepatic inflammation, steatosis, and accelerate liver fibrosis progression. Aucubin (AU), as an active ingredient isolated from Eucommia ulmoides, exists a nutritional value in hepatoprotective effect and diabetic complications. However, whether it possesses more outstanding features on improving liver injury in diabetic conditions and the underlying mechanism is unclear. Our research investigated the treatment of AU on liver fibrosis and potential mechanisms on high-fat diet/streptozotocin-induced diabetic mice and high glucose (HG)&TGF-β1-induced LX-2 cells. Results showed that AU restored hepatic function without affecting blood sugar levels in diabetic mice. Meanwhile, the enhanced levels of total cholesterol, triglycerides, and LDL-c were reversed in hepatic tissue after AU treatment. Histomorphology assays including H&E, Masson, PAS, Oil red and Sirius red staining showed that AU treatment reduced liver swelling, steatosis and fibrosis. Mechanistic studies showed that AU alleviated NLRP3 inflammasome activation and inflammatory responses via inhibiting ER stress-mediated IRE1α/TXNIP signaling pathway, which could postpone the development of T2DM induced hepatic fibrosis. In addition, the ROS generation and the up-regulated expression of NADHP oxidase 4 (NOX4) in the liver tissue were suppressed by AU treatment. Moreover, in vitro model, NOX4 activation was prominently enhanced and AU treatment blocked HG&TGF-β1-induced NOX4 derived superoxide generation and thereby ameliorating hepatic stellate cell activation, which can be abrogated in the overexpression of NOX4 LX-2 cells. In addition, inhibition effects on ER stress-mediated IRE1α/TXNIP/NLRP3 inflammasome by AU treatment also were abolished in the overexpression of NOX4 LX-2 cells. Meanwhile, molecular docking results indicated that AU and NOX4 protein have a higher affinity. Taken together, AU might be a potential nutraceutical or therapeutic drug to ameliorate hepatic impairment and fibrosis in T2DM.
Collapse
Affiliation(s)
- Xiaowen Bao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Jiaqi Li
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Chaoxing Ren
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Jingxun Wei
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Xuanzhao Lu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Xiaoxuan Wang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Wei Du
- Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Xin Jin
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Beiting Ma
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Qi Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China.
| | - Bo Ma
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China.
| |
Collapse
|
14
|
Do L, Brown C, Luo NM, Zhang C, Esiason G, Sjoberg J, Psoter K, Sabadosa K, Ren C. P040 Implementation and preliminary experiences of the HERO-2 real-world research study in patients with cystic fibrosis. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00373-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
15
|
Strachinaru M, Ren C, Geleijnse ML, Spitzer E. Variability of right ventricular linear measurements of size and function using a standardized echocardiographic protocol. Eur Heart J Cardiovasc Imaging 2022. [DOI: 10.1093/ehjci/jeab289.143] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Right ventricular size and function have a prognostic value not only in right heart conditions (pulmonary hypertension, congenital heart disease), but also in left ventricular (LV) disease states. The right ventricle (RV) has a unique shape, for which a simple geometrical model is not achievable as is the case for the LV. In clinical practice simple measurements are used for the RV, since these are considered to be most reliable and reproducible: linear cavity dimensions, tricuspid annular plane systolic excursion (TAPSE) and tissue Doppler systolic velocity s’ at the tricuspid annulus. The latest RV quantitation guidelines made important modifications to RV measurements, in particular, by shifting from the apical 4-chamber view to the RV focused apical view. Very scarce data exist on the variability of these measurements.
Purpose
In this study we aim to analyze the intra and inter-observer variability of the linear measurements of RV size and function using a standardized methodology.
Methods
A mixed cohort, randomly selected from the echocardiographic database, comprising 50 patients, was retrospectively analyzed. We measured linear diameters (basal = 1, longitudinal = 2, mid = 3) in apical RV-focused view, TAPSE and s’. Based on computer simulations, we propose a step-by-step approach: tracing the longitudinal diameter as perpendicular to the mid of the basal and generally parallel with the interventricular septum, and the mid as perpendicular to the middle of the longitudinal (Figure). Two observers measured independently the same images at baseline, three (inter-observer) and six months (intra-observer).
Results
The longitudinal diameter had the lowest relative bias (3% inter and 4% intra-observer), followed by the basal (7% and 2%), and mid (6% and 6%). The limits of agreement (LOA) were small for s’ (-3 to 1 intra and -1 to 1mm inter-observer), TAPSE (-6 to 5 and -3 to 3mm), and larger for diameters (1=-5 to 10 and -8 to 6; 2=-13 to 17 and -11 to 6; 3=-11 to 7 and -9 to 4mm). ICCs for individual measurements were very good (1= 0.94 intra and 0.94 inter; 2 = 0.78 and 0.94; 3: 0.72 and 0.56; TAPSE: 0.86 and 0.94; s’=0.94 and 0.98), p < 0.001 for all (Table).
Conclusion
A systematic approach to linear RV-focused apical view measurements may lead to reproducible results. It is essential that size measurements be performed in the RV focused view. Our study shows best consistency and reproducibility for the basal diameter and the linear functional parameters. Echocardiographic laboratories may benefit from implementing a consistent analysis protocol and assessing its reproducibility. Abstract Figure: linear RV measurements Abstract Table: variability results
Collapse
Affiliation(s)
- M Strachinaru
- Erasmus Medical Center, Cardiology, Rotterdam, Netherlands (The)
| | - C Ren
- Cardyalisis B.V, Rotterdam, Netherlands (The)
| | - ML Geleijnse
- Erasmus Medical Center, Cardiology, Rotterdam, Netherlands (The)
| | - E Spitzer
- Cardyalisis B.V, Rotterdam, Netherlands (The)
| |
Collapse
|
16
|
Luo X, Ren C, Liu X, Zhang G, Huang S, Yu L, Li Y. [Screening of drugs that selectively inhibit uveal melanoma cells with SF3B1 mutations]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:1835-1842. [PMID: 35012916 DOI: 10.12122/j.issn.1673-4254.2021.12.12] [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] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To screen compounds that can selectively inhibit uveal melanoma cells with splicing factor 3B subunit 1 (SF3B1) mutations in comparison with isogenic SF3B1 wild-type counterparts in a cell model of SF3B1 mutant allele knockout. METHODS Principal component analysis was used to analyze transcriptome alternative splicing in TCGA cohorts of uveal melanoma with wild-type SF3B1 and SF3B1 mutations, and abnormal alternative splicing events derived from SF3B1 mutations were identified. The SF3B1 mutant allele in Mel202 cells was knocked out using CRISPR-Cas9 technology, and Sanger sequencing was used to verify the edited sequence. MTT and colony formation assays were used to assess the proliferation of Mel202 and Mut-KO cells. RT-PCR agarose electrophoresis combined with Sanger sequencing was used to determine alternative splicing events in Mel202 and Mut-KO cells. MTT assay was performed to screen the compounds that showed selective inhibitory effect against Mel202 cells with SF3B1 mutation. RESULTS Specific knockout of SF3B1 mutant allele in Mel202 cells obviously promoted the cell proliferation and caused changes in alternative splicing of ZDHHC16 and DYNLL1 transcripts. The screening data showed that 13 compounds had selective inhibitory activity against Mel202 cells with SF3B1 mutation (Fold change≥2), and among them, tetrandrine and lapatinib showed good dose-effect curves. CONCLUSION This study provides a cell screening model for identification of potential individualized treatment drugs for patients with uveal melanoma with SF3B1 mutation.
Collapse
Affiliation(s)
- X Luo
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - C Ren
- College of Medical Information Engineering, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - X Liu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - G Zhang
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - S Huang
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - L Yu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Y Li
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| |
Collapse
|
17
|
Huang T, Zhou Y, Lu X, Tang C, Ren C, Bao X, Deng Z, Cao X, Zou J, Zhang Q, Ma B. Cordycepin, a major bioactive component of Cordyceps militaris, ameliorates diabetes-induced testicular damage through the Sirt1/Foxo3a pathway. Andrologia 2021; 54:e14294. [PMID: 34811786 DOI: 10.1111/and.14294] [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: 06/18/2021] [Revised: 10/02/2021] [Accepted: 10/11/2021] [Indexed: 12/29/2022] Open
Abstract
Diabetes-induced male dysfunction is considered as a worldwide challenge, and testicular damage mainly caused by oxidative stress is its most common manifestation. Cordycepin, a natural antioxidant, has been used in the treatment of diabetic complications. However, the protective action and underlying mechanism of cordycepin on hyperglycaemia-induced testicular damage are unclear. This study aimed to investigate the protective effects and molecular mechanisms of cordycepin against diabetes-induced testicular damage. The type 2 diabetes model was established in C57BL/6 male mice via high-fat diet for 4 weeks and injected intraperitoneally with 50 mg/kg/day streptozotocin for five consecutive days. Then mice were treated with cordycepin (10 and 20 mg/kg, respectively) for 8 weeks. At the end of experiment, biochemical indicators, microstructure of testicular tissue, sperm morphology, TUNEL staining and protein expressions were evaluated. In the present study, cordycepin alleviated the testicular damage, restored disruption of the blood-testis barrier, and improved spermatogenic function via the antiapoptotic and antioxidant capacity. Mechanistically, cordycepin significantly enhanced SIRT1 expression and triggered the activity of Foxo3a, further to induce the expression of its downstream antioxidant enzymes, including Mn-SOD and CAT. These findings indicated that cordycepin could improve hyperglycaemia-induced testicular damage by regulating downstream antioxidant enzymes activity through the SIRT1/Foxo3a signalling pathway.
Collapse
Affiliation(s)
- Tao Huang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Yanfen Zhou
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Xuanzhao Lu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Chenglun Tang
- Luzhou Pinchuang Technology Co. Ltd., Luzhou, China.,Nanjing Sheng Ming Yuan Health Technology Co. Ltd., Nanjing, China
| | - Chaoxing Ren
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Xiaowen Bao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Zhewen Deng
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Xiaomei Cao
- Department of Pharmacology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jianjun Zou
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Qi Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| | - Bo Ma
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, China
| |
Collapse
|
18
|
Thompson M, Reed J, Moran S, Sanders D, Ren C. 74: Factors contributing to clinician responses to FEV1 indicated exacerbation signal (FIES) events in a pediatric CF clinic. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01499-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
19
|
Moran S, Reed J, Sanders D, Ren C, Delecaris A. 257: Implementation of home spirometry in a pediatric cystic fibrosis center. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01682-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
20
|
Cordova JG, Slaven J, Saunders J, Ren C, Sanders D. 28: Treatment characteristics for children with cystic fibrosis and meconium ileus admitted within the first 14 days of life. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01453-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
21
|
Ren C, Zhou X, Bao X, Zhang J, Tang J, Zhu Z, Zhang N, Bai Y, Xi Y, Zhang Q, Ma B. Dioscorea zingiberensis ameliorates diabetic nephropathy by inhibiting NLRP3 inflammasome and curbing the expression of p66Shc in high-fat diet/streptozotocin-induced diabetic mice. J Pharm Pharmacol 2021; 73:1218-1229. [PMID: 34061184 DOI: 10.1093/jpp/rgab053] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 03/01/2021] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Diabetic nephropathy (DN) is a severe diabetic complication. Dioscorea zingiberensis (DZ) possesses excellent pharmacological properties with lower toxicity. The purpose of this study was to investigate the efficacy and mechanism of DZ in DN. METHODS DN was established by the high-fat diet combining intraperitoneal injection of streptozotocin in mice. The DZ (125 and 250 mg/kg/day) were intragastrical administered for 8 consecutive weeks. After treatment, blood, urine and kidney tissue were collected for biological detection, renal morphology, fibrosis and molecular mechanism research, respectively. KEY FINDINGS This study has shown that DZ significantly ameliorated kidney hypertrophy, renal structural damage and abnormal function of the kidney indicators (creatinine, urinary protein and blood urea nitrogen). Further molecular mechanism data suggested that the NLRP3/Cleaved-caspase-1 signal pathway was remarkably activated in DN, and DZ treatment reversed these changes, which indicated that it effectively attenuated inflammatory response caused by hyperglycaemia. In addition, DN inhibits hyperglycaemia-induced activation of oxidative stress by suppressing the expression of p66Shc proteins. CONCLUSIONS DZ could efficiently suppress oxidative stress and inflammatory responses to postpone the development of DN, and its mechanism might be related to inhibition of NLRP3 and p66Shc activities. Thus, DZ could be developed into a new therapeutic agent for DN.
Collapse
Affiliation(s)
- Chaoxing Ren
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, People's Republic of China
| | - Xiaowei Zhou
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, People's Republic of China
| | - Xiaowen Bao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, People's Republic of China
| | - Jie Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, People's Republic of China
| | - Jun Tang
- Jiangsu Huanghe Pharmaceutical Co., Ltd, Yancheng, People's Republic of China
| | - Zhiming Zhu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, People's Republic of China
| | - Nan Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, People's Republic of China
- School of Chemical and Molecular Engineering, Nanjing Tech University, Nanjing, People's Republic of China
| | - Yu Bai
- Department of Biological Sciences, University of Toronto Scarborough, ON, Canada
| | - Youli Xi
- Department of Pharmacy, Nanjing Drum Tower Hospital, Nanjing, People's Republic of China
| | - Qi Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, People's Republic of China
| | - Bo Ma
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, People's Republic of China
| |
Collapse
|
22
|
Zhu Q, Ren C, Xu JJ, Li MJ, Yuan HS, Wang XH. Whole-lesion histogram analysis of mono-exponential and bi-exponential diffusion-weighted imaging in differentiating lung cancer from benign pulmonary lesions using 3 T MRI. Clin Radiol 2021; 76:846-853. [PMID: 34376284 DOI: 10.1016/j.crad.2021.07.003] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 07/05/2021] [Indexed: 01/03/2023]
Abstract
AIM To investigate whether whole-lesion histogram analysis of apparent diffusion coefficient (ADC) values derived from mono-exponential and bi-exponential diffusion-weighted imaging (DWI) can differentiate lung cancer from benign pulmonary lesions. MATERIALS AND METHODS Thirty-two patients with lung cancer and 17 patients with benign pulmonary lesions were included retrospectively. All patients underwent DWI before surgery or biopsy. ADC histogram parameters, including mean, percentile values (10th and 90th), kurtosis, and skewness, were calculated independently by two radiologists. The histogram parameters were compared between patients with lung cancer and benign lesions. Receiver operating characteristic curves were constructed to evaluate the diagnostic performance. RESULTS The ADCMean, ADC10th, DMean, D10th were significantly lower in lung cancer (1.187 ± 0.144 × 10-3; 0.440 ± 0.062 × 10-3; 1.068 ± 0.108 × 10-3; and 0.422 ± 0.049 × 10-3 mm/s) compared to benign lesions (1.418 ± 0.274 × 10-3; 0.555 ± 0.113 × 10-3; 1.216 ± 0.149 × 10-3; and 0.490 ± 0.044 × 10-3 mm/s; p<0.05). The ADCSkewness and DSkewness were significantly different between lung cancer (2.35 ± 0.72; 2.58 ± 1.14) and benign lesions (1.85 ± 0.54; 1.59 ± 1.47; p<0.05). D10th was robust in differentiating lung cancer from benign lesions. Using 0.453 × 10-3 mm/s as the optimal threshold, the sensitivity, specificity, and accuracy of D10th were 78.12%, 82.35%, and 79.6%, respectively. CONCLUSION Whole-lesion histogram analysis of ADC values derived by mono-exponential and bi-exponential DWI using 3 T magnetic resonance imaging helps distinguish lung cancer from benign pulmonary lesions.
Collapse
Affiliation(s)
- Q Zhu
- Department of Radiology, Peking University Third Hospital, Haidian District, Beijing, 100191, People's Republic of China
| | - C Ren
- Department of Radiology, Peking University Third Hospital, Haidian District, Beijing, 100191, People's Republic of China
| | - J-J Xu
- Department of Radiology, Peking University Third Hospital, Haidian District, Beijing, 100191, People's Republic of China
| | - M-J Li
- Department of Radiology, Peking University Third Hospital, Haidian District, Beijing, 100191, People's Republic of China
| | - H-S Yuan
- Department of Radiology, Peking University Third Hospital, Haidian District, Beijing, 100191, People's Republic of China
| | - X-H Wang
- Department of Radiology, Peking University Third Hospital, Haidian District, Beijing, 100191, People's Republic of China.
| |
Collapse
|
23
|
Zhang S, Li J, Krauland CM, Beg FN, Muller S, Theobald W, Palastro J, Filkins T, Turnbull D, Haberberger D, Ren C, Betti R, Stoeckl C, Campbell EM, Trela J, Batani D, Scott RHH, Wei MS. Pump-depletion dynamics and saturation of stimulated Brillouin scattering in shock ignition relevant experiments. Phys Rev E 2021; 103:063208. [PMID: 34271736 DOI: 10.1103/physreve.103.063208] [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: 09/05/2019] [Accepted: 05/19/2021] [Indexed: 11/07/2022]
Abstract
As an alternative inertial confinement fusion scheme, shock ignition requires a strong converging shock driven by a high-intensity laser pulse to ignite a precompressed fusion capsule. Understanding nonlinear laser-plasma instabilities is crucial to assess and improve the laser-shock energy coupling. Recent experiments conducted on the OMEGA EP laser facility have demonstrated that such instabilities can ∼100% deplete the first 0.5 ns of the high-intensity laser. Analyses of the observed laser-generated blast wave suggest that this pump-depletion starts at ∼0.02 critical density and progresses to 0.1-0.2 critical density, which is also confirmed by the time-resolved stimulated Raman backscattering spectra. The pump-depletion dynamics can be explained by the breaking of ion-acoustic waves in stimulated Brillouin scattering. Such pump depletion would inhibit the collisional laser energy absorption but may benefit the generation of hot electrons with moderate temperatures for electron shock ignition [Phys. Rev. Lett. 119, 195001 (2017)PRLTAO0031-900710.1103/PhysRevLett.119.195001].
Collapse
Affiliation(s)
- S Zhang
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, California 92093, USA
| | - J Li
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, California 92093, USA
| | - C M Krauland
- Inertial Fusion Technology, General Atomics, San Diego, California 92121, USA
| | - F N Beg
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, California 92093, USA
| | - S Muller
- Inertial Fusion Technology, General Atomics, San Diego, California 92121, USA
| | - W Theobald
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - J Palastro
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - T Filkins
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - D Turnbull
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - D Haberberger
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - C Ren
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.,Department of Mechanical Engineering, University of Rochester, Rochester, New York 14623, USA
| | - R Betti
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.,Department of Mechanical Engineering, University of Rochester, Rochester, New York 14623, USA
| | - C Stoeckl
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - E M Campbell
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - J Trela
- Centre Lasers Intenses et Applications, CELIA, Université de Bordeaux CEA-CNRS, 33405 Talence, France
| | - D Batani
- Centre Lasers Intenses et Applications, CELIA, Université de Bordeaux CEA-CNRS, 33405 Talence, France
| | - R H H Scott
- Central Laser Facility, STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot OX11 0QX, United Kingdom
| | - M S Wei
- Inertial Fusion Technology, General Atomics, San Diego, California 92121, USA.,Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| |
Collapse
|
24
|
Bao X, Zhu J, Ren C, Zhao A, Zhang M, Zhu Z, Lu X, Zhang Y, Li X, Sima X, Li J, Zhang Q, Ma B. β-elemonic acid inhibits growth and triggers apoptosis in human castration-resistant prostate cancer cells through the suppression of JAK2/STAT3/MCL-1 and NF-ĸB signal pathways. Chem Biol Interact 2021; 342:109477. [PMID: 33878321 DOI: 10.1016/j.cbi.2021.109477] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 12/21/2020] [Revised: 04/02/2021] [Accepted: 04/12/2021] [Indexed: 12/19/2022]
Abstract
Castration-resistant prostate cancer (CRPC) has become a significant problem in the current treatment of prostate cancer (PCa) with the characteristics of high metastatic potential, resistance and easy recurrence. The abnormal activation of JAK2/STAT3/MCL-1 and NF-κB has been confirmed as the main reason for the development of CRPC. We previously found that β-elemonic acid (β-EA) as a natural triterpene has potential anti-inflammatory and anti-osteosarcoma effects with lower toxicity. But it remains unknown whether it had effects on CRPC. The present research in vitro and in vivo systematically investigates anti-cancer effects and mechanisms of β-EA on human CRPC. β-EA treatment resulted in apoptotic cell death in human PCa cells by mitochondrial apoptotic pathways (including up-regulation of cleaved caspase-3, cleaved PARP, and Bax or down-regulation of Bcl-2). Besides, β-EA at relatively lower levels inhibited colony-forming, the migration and invasion potential of PCa cells, indicating its anti-proliferation and anti-metastasis activities. After exploring the potential mechanism, our results suggested that it subsequently inhibited the activation of JAK2/STAT3/MCL-1 and NF-κB signaling pathway by the administration of β-EA. The silencing of NF-κB/p65, JAK2 and STAT3, respectively, increased the sensitivity of the PCa cells to β-EA induced apoptosis. Moreover, β-EA exhibited a strong affinity with its essential proteins JAK2, RELA/p65, NF-κBIα/IκBα by molecular docking analysis. Importantly, β-EA retards tumor growth in a murine xenograft model, consistent with our study in vitro. Taken together, findings from this study reveal for the first time the potential role and mechanisms of β-EA on CRPC.
Collapse
Affiliation(s)
- Xiaowen Bao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Jianwei Zhu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Chaoxing Ren
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Ang Zhao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Mingya Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Zhiming Zhu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Xuanzhao Lu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Yuning Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Xiaotian Li
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Xinyu Sima
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Jiaqi Li
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China
| | - Qi Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China.
| | - Bo Ma
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 210009, People's Republic of China.
| |
Collapse
|
25
|
Ren C, Nai Y, Lv W, Liu H, Chen Q, Sun ZW, Wang JH, Guan LN, Gong L, Wang XT. Focus on autonomic dysfunctions in anti-NMDAR encephalitis: a case report. Eur Rev Med Pharmacol Sci 2020; 23:10970-10975. [PMID: 31858566 DOI: 10.26355/eurrev_201912_19801] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE We hope it will provide a reference for early detection, early diagnosis, and early treatment of atypical Anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis with non-typical autonomic dysfunctions as the first symptom. PATIENTS AND METHODS We present a 15-year-old girl with the repetition of conscious disturbance at different levels, but no abnormal movements. Initially, there were no positive findings on routine electroencephalography (EEG) and dynamic video-electroencephalography (V-EEG), but the head-up tilt test (HTT) suggested neurocardiogenic syncope (vascular rejection type), which seemed to be the final diagnosis. However, the patient later experienced several episodes of disturbance of consciousness with unexplained abdominal pain. Abnormalities were discovered on EEG, which indicated the possibility of "epileptic seizures with autonomic-gastrointestinal features". Based on these findings, we finally tested the autoimmune encephalitis-related antibodies for the patient after the literature search and review. RESULTS The patient was finally diagnosed with anti-NMDAR encephalitis. Her symptoms were fully controlled after glucocorticoid and gamma globulin treatment, and she left the hospital with complete recovery. CONCLUSIONS Although autonomic nervous dysfunction occurred in our patient, her prognosis was good because she did not have respiratory or (and) circulatory failure. Exclusive diagnosis and early treatment are important in patients with anti-NMDAR encephalitis. Abdominal pain with positive HTT may be a manifestation of autonomic dysfunction in this disease.
Collapse
Affiliation(s)
- C Ren
- Department of Neurology, Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Xu ZC, Wei R, Jiao KD, Ren C, Ma W. [Correlation between alcohol drinking and high risk sexual behaviors in HIV negative clients of female sex workers]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:1531-1535. [PMID: 33076613 DOI: 10.3760/cma.j.cn112338-20191230-00920] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the correlation between alcohol drinking and high-risk sexual behaviors in HIV negative clients of female sex workers and provide scientific evidence for prevention of HIV sexual transmission. Methods: A cross-sectional survey was conducted in HIV negative clients in Ji'nan and Haikou from December 2018 to May 2019. The estimated sample size was 337, the information about their demographic characteristics, AIDS knowledge awareness, sexual behaviors and alcohol drinking habit were collected through convenience sampling. The data were analyzed by using SPSS 24.0 software. Results: A total of 381 clients were included in this study. Most of them were less than 40 years old, accounting for 89.2% (340/381); 85.3% of them (325/381) reported an education level of high school and above; the clients who were married, had cohabitation with females or had girl friends accounted for 53.2% (202/380). The overall awareness rate of AIDS knowledge was 83.7% (318/380). Of all participants, 80.8% (308/381) had commercial sex in the past year, 79.8% (304/381) had non-commercial sex partners, 62.7% (239/381) had high-risk sexual behaviors. The results of logistic regression showed that compared with those with alcohol drinking frequency ≤2 times per month in last year, the clients with alcohol drinking frequency more than once a week (aOR=3.22, 95%CI: 1.25-8.27) were more likely to have high risk sexual behaviors after adjustment for age, living area, location type of residence, time of local residence, education level, monthly income level, occupation, marital status, knowledge awareness of AIDS and HIV related services, the number of commercial or non-commercial sexual partners in the past year, cost of commercial sex and HIV test frequency. Conclusions: Alcohol drinking is related to high risk sexual behaviors in HIV negative clients, and will increase the risk of HIV transmission. To control AIDS, the intervention of alcohol drinking should be combined with other preventions to improve the correct use of condoms.
Collapse
Affiliation(s)
- Z C Xu
- Department of Epidemiology, School of Public Health, Shandong University, Ji'nan 250012, China
| | - R Wei
- Thoracic Hospital of Shandong Province, Ji'nan 250013, China
| | - K D Jiao
- Department of Epidemiology, School of Public Health, Shandong University, Ji'nan 250012, China
| | - C Ren
- Department of Epidemiology, School of Public Health, Shandong University, Ji'nan 250012, China
| | - W Ma
- Department of Epidemiology, School of Public Health, Shandong University, Ji'nan 250012, China
| |
Collapse
|
27
|
Yao RQ, Ren C, Wang LX, Dong N, Wu Y, Yao YM. [Influence of Xuebijing injection and its component paeoniflorin on immune function and survival rate of septic rats]. Zhonghua Shao Shang Za Zhi 2020; 36:658-664. [PMID: 32829604 DOI: 10.3760/cma.j.cn501120-20200430-00246] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the influence of Xuebijing injection (hereinafter referred to as Xuebijing) and its component paeoniflorin on immune function of regulatory T cells (Tregs) of spleen and survival rate of septic rats. Methods: (1) CD4(+) CD25(+) Tregs and CD4(+) T cells were isolated and purified from spleens of three 9 to 12 weeks old Sprague-Dawley male rats (the same age, breed, and gender below) by immunomagnetic beads. According to the random number table (the same grouping method below), CD4(+) CD25(+) Tregs were divided into blank control group, simple CD3/CD28 group, simple endotoxin/lipopolysaccharide (LPS) group, LPS+ Xuebijing group, and LPS+ paeoniflorin group, with 6 wells in each group. The cells in simple CD3/CD28 group, simple LPS group, LPS+ Xuebijing group, and LPS+ paeoniflorin group were cultured in RPMI 1640 medium containing fetal bovine serum in volume fraction of 10%, 1.25 μg CD3, and 2.5 μg CD28 for 24 hours. Then 1 μg/mL LPS in the volume of 1 μL was added to the cells in simple LPS group, LPS+ Xuebijing group, and LPS+ paeoniflorin group. Moreover, 5 mg/mL Xuebijing in the volume of 1 μL and 80 μmol/L paeoniflorin in the volume of 1 μL were added to the cells in LPS+ Xuebijing group and LPS+ paeoniflorin group, respectively, which were cultured for another 72 hours. Cells in blank control group were routinely cultured in RPMI 1640 medium containing fetal bovine serum in volume fraction of 10% for 96 hours. The expressions of cytotoxic T lymphocyte antigen 4 (CTLA-4) and forkhead wing-link transcription factor 3 (Foxp3) and apoptosis of CD4(+) CD25(+) Tregs were measured by flow cytometry. The interleukin-10 (IL-10) level from culture supernatant of CD4(+) CD25(+) Tregs was determined by enzyme-linked immunosorbent assay (ELISA). CD4(+) T cells were divided into blank control' group, simple CD3/CD28' group, simple LPS' group, LPS+ Xuebijing' group, and LPS+ paeoniflorin' group, with 6 wells in each group. After being cocultured with the corresponding CD4(+) CD25(+) Tregs treated as before for 72 hours, the proliferative activity of CD4(+) T cells was measured by flow cytometry, and IL-4 level from culture supernatant of CD4(+) T cells was determined by ELISA. (2) One hundred and twenty rats were divided into sham surgery group, simple sepsis group, sepsis+ Xuebijing group, and sepsis+ paeoniflorin group, with 30 rats in each group. The septic rat model was reproduced by cecal ligation and puncture surgery in simple sepsis group, sepsis+ Xuebijing group, and sepsis+ paeoniflorin group. In sham surgery group, the rats were only performed with laparotomy to simulate surgery. In sepsis+ Xuebijing group, the rats were given post-surgical injection of 4 mL/kg Xuebijing through tail vein, twice a day. In sepsis+ paeoniflorin group, the rats received 978 μg paeoniflorin via tail vein, twice a day. The survival rates of rats in the four groups on post surgery day 1, 2, 3, 4, 5, 6, and 7 were observed and recorded. The surviving cure of Kaplan-Meier was drawn. Data were statistically analyzed with one-way analysis of variance, least significant difference t test. The surviving curve was analyzed by Log-rank (Mantel-Cox) test. Results: (1) Compared with those in blank control group, the expressions of CTLA-4 and Foxp3 of CD4(+) CD25(+) Tregs (t=27.19, 17.00, P<0.01) and IL-10 level from culture supernatant (t=40.76, P<0.01) were significantly increased in rats in simple LPS group. Compared with those in simple LPS group, the expressions of CTLA-4 and Foxp3 of CD4(+) CD25(+) Tregs (t(LPS+ Xuebijing group)=31.03, 11.27, t(LPS+ paeoniflorin group)=5.79, 5.64, P<0.01) and IL-10 level from culture supernatant (t=15.49, 4.20, P<0.01) was significantly decreased in LPS+ Xuebijing group and LPS+ paeoniflorin group. Compared with that in blank control group, the apoptosis rate of CD4(+) CD25(+) Tregs in simple LPS group was significantly declined (t=6.02, P<0.01). Compared with the rate in simple LPS group, the apoptosis rates of CD4(+) CD25(+) Tregs in LPS+ Xuebijing group and LPS+ paeoniflorin group were significantly increased (t=20.32, 8.60, P<0.01). (2) Compared with those in simple CD3/CD28' group, the proliferative rate of CD4(+) T cells was significantly decreased in simple LPS' group (t=22.47, P<0.01), while IL-4 level from culture supernatant was significantly elevated (t=3.51, P<0.01). Compared with those in simple LPS' group, the proliferative rates of CD4(+) T cells in LPS+ Xuebijing' group and LPS+ paeoniflorin' group were significantly increased (t=16.31, 11.48, P<0.01), while IL-4 level from culture supernatant showed no obvious change. (3) The post-operative 7-day survival rates of rats in sham surgery group, simple sepsis group, sepsis+ Xuebijing group, sepsis+ paeoniflorin group were 100% (30/30), 30% (9/30), 57% (17/30), and 47% (14/30), respectively. Compared with that in simple sepsis group, the survival rate within post-operative 7-day of rats in sepsis+ Xuebijing group was significantly higher (χ(2)=4.34, P<0.05), while the survival rate within post-operative 7-day of rats in sepsis+ paeoniflorin group showed no obvious change. Conclusions: Both Xuebijing and its component paeoniflorin are capable of reversing sepsis-induced inhibitory immune function and apoptotic resistant of Tregs in rats, and further improving the proliferative activity of T cells. In addition, the effect of paeoniflorin on improvement of survival rate of rats with sepsis is weaker than Xuebijing.
Collapse
Affiliation(s)
- R Q Yao
- Trauma Research Center, Fourth Medical Center and Medical Innovation Research Department of PLA General Hospital, Beijing 100048, China
| | - C Ren
- Trauma Research Center, Fourth Medical Center and Medical Innovation Research Department of PLA General Hospital, Beijing 100048, China
| | - L X Wang
- Trauma Research Center, Fourth Medical Center and Medical Innovation Research Department of PLA General Hospital, Beijing 100048, China
| | - N Dong
- Trauma Research Center, Fourth Medical Center and Medical Innovation Research Department of PLA General Hospital, Beijing 100048, China
| | - Y Wu
- Trauma Research Center, Fourth Medical Center and Medical Innovation Research Department of PLA General Hospital, Beijing 100048, China
| | - Y M Yao
- Trauma Research Center, Fourth Medical Center and Medical Innovation Research Department of PLA General Hospital, Beijing 100048, China
| |
Collapse
|
28
|
Cao SH, Yan R, Wen H, Li J, Ren C. Cogeneration of hot electrons from multiple laser-plasma instabilities. Phys Rev E 2020; 101:053205. [PMID: 32575279 DOI: 10.1103/physreve.101.053205] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 05/05/2020] [Indexed: 02/03/2023]
Abstract
Interactions of two-plasmon decay (TPD) and side-stimulated Raman scattering (SSRS) were studied using three-dimensional particle-in-cell simulations under inertial-confinement-fusion-relevant conditions for linearly and circularly polarized lasers. In the linear stage, SSRS took place under n_{e}=0.235n_{c} and TPD dominated near the quarter-critical density surface and their growth rates agreed with theory. In the nonlinear stage, SSRS reduced TPD through pump depletion. Hot electrons were found to be first accelerated by SSRS plasma waves and then by TPD plasma waves through a cogeneration mechanism. Compared to the linearly polarized case with the same laser intensity, both SSRS and TPD were reduced due to the lower laser amplitude in the circularly polarized case. As a result, a 30% decrease in hot electron flux was observed.
Collapse
Affiliation(s)
- S H Cao
- Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627, USA
| | - R Yan
- Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230026, China.,Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
| | - H Wen
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627, USA
| | - J Li
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - C Ren
- Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627, USA.,Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627, USA.,Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| |
Collapse
|
29
|
Deng K, Ren C, Fan Y, Liu Z, Zhang G, Zhang Y, You P, Wang F. miR-27a is an important adipogenesis regulator associated with differential lipid accumulation between intramuscular and subcutaneous adipose tissues of sheep. Domest Anim Endocrinol 2020; 71:106393. [PMID: 31731253 DOI: 10.1016/j.domaniend.2019.106393] [Citation(s) in RCA: 20] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 08/05/2019] [Accepted: 09/04/2019] [Indexed: 01/15/2023]
Abstract
Micro ribonucleic acids (miRNAs) are crucial regulators for various biological processes. Despite important function in the proliferation and differentiation of preadipocytes, miRNA studies are limited in regional differences in adipogenesis. Here, we show that miR-27a plays an important role in regulating differential lipid accumulation between intramuscular (IM) and subcutaneous (SC) adipose tissues in sheep. Invivo, we observed that miR-27a expression in IM adipose tissue is more abundant than in SC adipose tissue. However, the expression of Peroxisome Proliferator-Activated Receptor Gamma (PPARG) and retinoid X receptor alpha (RXR alpha) in IM adipose tissue was significantly lower than that in SC adipose tissue. In the ovine preadipocyte differentiation model, we found that the expression of miR-27a was significantly decreased in differentiated ovine adipocytes. Overexpression of miR-27a significantly downregulated the expression of PPARG and RXR alpha and suppressed the accumulation of triglyceride but promoted the proliferation of ovine preadipocytes. Whereas, inhibition of miR-27a suppressed preadipocyte proliferation but enhanced PPARG and RXR alpha expression and lipid droplet formation. In addition, dual-luciferase activity assays showed that RXR alpha was a direct target of miR-27a. Thus, miR-27a enhances ovine preadipocytes proliferation and inhibits ovine preadipocytes differentiation through regulating the expression of target RXR alpha. Collectively, our study demonstrates the functional importance of miR-27a in ovine adipogenesis and provides novel insights into exploring regional differences in adipogenesis.
Collapse
Affiliation(s)
- K Deng
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - C Ren
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Y Fan
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Z Liu
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - G Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Y Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - P You
- Portal Agri-Industries Co, Ltd, Xingdian Street, Pikou District, Nanjing, Jiangsu, China
| | - F Wang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, Jiangsu, China; National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, Jiangsu, China.
| |
Collapse
|
30
|
Li J, Zhang S, Krauland CM, Wen H, Beg FN, Ren C, Wei MS. Pump depletion and hot-electron generation in long-density-scale-length plasma with shock-ignition high-intensity laser. Phys Rev E 2020; 101:033206. [PMID: 32289963 DOI: 10.1103/physreve.101.033206] [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] [Received: 01/10/2019] [Accepted: 01/09/2020] [Indexed: 06/11/2023]
Abstract
Two-dimensional particle-in-cell simulations for laser plasma interaction with laser intensity of 10^{16}W/cm^{2}, plasma density range of 0.01-0.28n_{c}, and scale length of 230-330μm showed significant pump depletion of the laser energy due to stimulated Raman scattering (SRS) and stimulated Brillouin scattering (SBS) in the low-density region (n_{e}=0.01-0.2n_{c}). The simulations identified hot electrons generated by SRS in the low-density region with moderate energy and by two-plasmon-decay near n_{e}=0.25n_{c} with higher energy. The overall hot electron temperature (46 keV) and conversion efficiency (3%) were consistent with the experiment's measurements. The simulations also showed artificially reducing SBS would lead to stronger SRS and a softer hot-electron spectrum.
Collapse
Affiliation(s)
- J Li
- Center for Energy Research, University of California San Diego, La Jolla, California 92093, USA
| | - S Zhang
- Center for Energy Research, University of California San Diego, La Jolla, California 92093, USA
| | - C M Krauland
- Inertial Fusion Technology, General Atomics, San Diego, California 92121, USA
| | - H Wen
- Department of Electrical Engineering, University of California, Los Angeles, California 90095, USA
| | - F N Beg
- Center for Energy Research, University of California San Diego, La Jolla, California 92093, USA
| | - C Ren
- Department of Mechanical Engineering and Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627, USA
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - M S Wei
- Inertial Fusion Technology, General Atomics, San Diego, California 92121, USA
| |
Collapse
|
31
|
Ren C, Zhao W, Shen T, Xu XY, Zhou LQ, Tao LY, Gao W. [Effects of ticagrelor on cardiorespiratory fitness in patients after percutaneous coronary intervention]. Zhonghua Xin Xue Guan Bing Za Zhi 2020; 48:104-110. [PMID: 32135609 DOI: 10.3760/cma.j.issn.0253-3758.2020.02.004] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effects of ticagrelor on cardiorespiratory fitness in patients with coronary heart disease after percutaneous coronary intervention (PCI). Methods: A total of 1 073 patients, who were diagnosed as coronary heart disease and underwent cardiopulmonary exercise testing (CPET) within 1 year after PCI, were enrolled from September 2017 to September 2019 in Peking University Third Hospital, including 309 patients in ticagrelor group and 764 patients in clopidogrel group. Clinical information, blood test results, echocardiographic parameters, cardiorespiratory fitness related parameters (including peak oxygen uptake (VO(2)), anaerobic threshold VO(2), peak oxygen pulse (VO(2)/HR) and carbon dioxide ventilation equivalent (VE/VCO(2)) slope), coronary lesions and intervention information were obtained. Cardiopulmonary fitness related indexes were compared between the two groups, and the correlation between ticagrelor use and cardiopulmonary fitness related indexes was analyzed by multivariate logistic regression. Patients who underwent CPET within 1 month after PCI were included in the subgroup analysis. Results: In ticagrelor group, the age was (60.3±10.3) years, and 253(81.9%) cases were male. The age of clopidogrel group was (60.6±10.0) years, and there were 608(79.6%) males. No significant differences were observed in peak VO(2), anaerobic threshold VO(2), and peak VO(2)/HR between the two groups (all P>0.05), but the VE/VCO(2) slope was significantly higher in the ticagrelor group than in the clopidogrel group (30.075 (27.207, 33.603) vs. 28.853 (25.970, 32.336), P<0.001). Logistic regression analysis suggested that the peak VO(2), anaerobic threshold VO(2) and peak VO(2)/HR were not significantly correlated with the ticagrelor use (all P>0.05), while the VE/VCO(2) slope was independently correlated with ticagrelor use (OR=1.098, 95%CI 1.032-1.168, P=0.003). Subgroup analysis of patients who underwent CPET within 1 month after PCI also indicated that no significant difference were observed in peak VO(2), anaerobic threshold VO(2), peak VO(2)/HR and VE/VCO(2) slope between the two groups (all P>0.05). Logistic regression analysis suggested that the peak VO(2), anaerobic threshold VO(2) and peak VO(2)/HR were not significantly correlated with ticagrelor use (all P>0.05), while the VE/VCO(2) slope was significantly correlated with ticagrelor use (OR=1.132, 95%CI 1.030-1.244, P=0.010). Conclusion: Among coronary heart disease patients after PCI, treatment with clopidogrel does not result in significant decrease in exercise endurance as compared with patients treated with ticagrelor.
Collapse
Affiliation(s)
- C Ren
- Department of Cardiology, Peking University Third Hospital, Institute of Vascular Medicine, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides of National Health Commission, Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| | - W Zhao
- Department of Cardiology, Peking University Third Hospital, Institute of Vascular Medicine, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides of National Health Commission, Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| | - T Shen
- Department of Cardiology, Peking University Third Hospital, Institute of Vascular Medicine, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides of National Health Commission, Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| | - X Y Xu
- Department of Cardiology, Peking University Third Hospital, Institute of Vascular Medicine, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides of National Health Commission, Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| | - L Q Zhou
- Department of Cardiology, Peking University Third Hospital, Institute of Vascular Medicine, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides of National Health Commission, Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| | - L Y Tao
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing 100191, China
| | - W Gao
- Department of Cardiology, Peking University Third Hospital, Institute of Vascular Medicine, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides of National Health Commission, Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| |
Collapse
|
32
|
Ma B, Zhu Z, Zhang J, Ren C, Zhang Q. Aucubin alleviates diabetic nephropathy by inhibiting NF-κB activation and inducing SIRT1/SIRT3-FOXO3a signaling pathway in high-fat diet/streptozotocin-induced diabetic mice. J Funct Foods 2020. [DOI: 10.1016/j.jff.2019.103702] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
|
33
|
Ji YQ, Guan LN, Yu SX, Yin PY, Shen XQ, Sun ZW, Liu J, Lv W, Yu GP, Ren C. Serum sclerostin as a potential novel biomarker for heart valve calcification in patients with chronic kidney disease. Eur Rev Med Pharmacol Sci 2019; 22:8822-8829. [PMID: 30575924 DOI: 10.26355/eurrev_201812_16650] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To explore the correlation between change in sclerostin level and heart valve calcification in patients with chronic kidney disease (CKD) in stages 3-5, as well as the possible underlying mechanism, which could provide a clinical reference for the diagnosis and treatment of cardiovascular disease (CVD). PATIENTS AND METHODS 110 patients were divided into a healthy control group and three groups of patients with CKD stages 3, 4, and 5 according to CKD staging guidelines. Scr, BUN, AKP, TC, TG, HDL, LDL, Ca, Pi, and CRP were measured, and calcium-phosphate product (Ca×Pi) calculated. ELISA was used to measure the sclerostin level, and the estimated glomerular filtration rate (eGFR) was calculated by MDRD. Heart valve calcification was measured by a physician in the Cardiac Department of our hospital. The correlations between sclerostin-level change and heart valve calcification, as well as each index in CKD patients in stages 3-5, were analyzed. RESULTS Compared with the healthy control group, the serum Ca in CKD stage-3, stage-4, and stage-5 groups (p < 0.05) was reduced, and PTH was increased (p < 0.05). Blood Pi and Ca×Pi in the stage-4 and stage-5 groups were increased (p < 0.05). The serum sclerostin level increased with renal hypofunction in stage-3 CKD patients, and was significantly increased compared with that of the control group, reaching the highest level in the terminal stage (p < 0.01). Pearson correlation analysis indicated that serum sclerostin was negatively correlated with eGFR (r = -0.91, p < 0.001) and blood Ca (r= -0.271, p < 0.001), and positively correlated with SCr (r = 0.608, p < 0.001), blood Pi level (r = 0.295, p < 0.001), PTH (r = 0.334, p < 0.001), and Ca×Pi (r = 0.275, p < 0.001). The rate of heart valve calcification in the CKD patients in stage 5 was relatively high (11/30, 36.67%), and significantly higher than that in healthy controls (1/20, 5%; p < 0.01). Logistic regression analysis of heart valve calcification indicated that sclerostin was a risk factor for heart valve calcification in CKD patients in stages 3-5. CONCLUSIONS The sclerostin level gradually increased with renal hypofunction in CKD patients in stages 3-5, and the increase in serum sclerostin level in the CKD patients occurred earlier than the change in Pi and Ca×Pi. The risk of heart valve calcification in stage-5 CKD patients was significantly increased. Sclerostin is an independent risk factor for heart valve calcification in CKD patients.
Collapse
Affiliation(s)
- Y-Q Ji
- Department of Nephrology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong Province, China.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Wen H, Maximov AV, Yan R, Li J, Ren C, Tsung FS. Three-dimensional particle-in-cell modeling of parametric instabilities near the quarter-critical density in plasmas. Phys Rev E 2019; 100:041201. [PMID: 31771012 DOI: 10.1103/physreve.100.041201] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Indexed: 11/07/2022]
Abstract
The nonlinear regime of laser-plasma interactions including both two-plasmon decay (TPD) and stimulated Raman scattering (SRS) instabilities has been studied in three-dimensional (3D) particle-in-cell simulations with parameters relevant to the inertial confinement fusion (ICF) experiments. SRS and TPD develop in the same region in plasmas, and the generation of fast electrons can be described accurately with only the full model including both SRS and TPD. The growth of instabilities in the linear stage is found to be in good agreement with analytical theories. In the saturation stage the low-frequency density perturbations driven by the daughter waves of the SRS side scattering can saturate the TPD and consequently inhibit the fast-electron generation. The fast-electron flux in 3D modeling is up to an order of magnitude smaller than previously reported in 2D TPD simulations, bringing it close to the results of ICF experiments.
Collapse
Affiliation(s)
- H Wen
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.,Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627, USA
| | - A V Maximov
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.,Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627, USA
| | - R Yan
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.,Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627, USA
| | - J Li
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.,Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627, USA
| | - C Ren
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.,Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627, USA.,Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - F S Tsung
- Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
| |
Collapse
|
35
|
Guan L, Ji YQ, Liu J, Kong M, Sun ZW, Shen XQ, Ren C, Yu GP, Ba MW. Diazoxide induces endoplasmic reticulum stress-related neuroprotection mediated by p38 MAPK against Aβ25-35 insults. Eur Rev Med Pharmacol Sci 2019; 22:6133-6138. [PMID: 30280801 DOI: 10.26355/eurrev_201809_15953] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The endoplasmic reticulum (ER) -resident caspase-12 was identified as a mediator of Aβ neurotoxicity. Recent evidence indicates that mitochondrial ATP-sensitive potassium (KATP) channel openers mediate their neuroprotective role by adjusting ER stress pathways, but the molecular details remain largely unknown and have been investigated. MATERIALS AND METHODS In this study, the protein expression levels of calreticulin (CRT) and caspase-12 activation and phosphorylated p38 MAPK were observed by immunoblotting in cultured PC12 cells from different groups: treatment with Aβ25-35 (group Aβ25-35), treatment with diazoxide (group diazoxide), pretreatment with diazoxide and then exposure to Aβ25-35 (group diazoxide + Aβ25-35), pretreatment with p38 MAPK inhibitor SB 203580 and then exposure to diazoxide and Aβ25-35 (group SB 203580 + diazoxide + Aβ25-35), and the control (group control). RESULTS In response to the treatment with Aβ25-35 (10 µM) for 24 h, the protein expression levels of CRT and caspase-12 activation were increased and phosphorylated p38 MAPK was decreased significantly. Diazoxide reduced CRT overexpression and caspase-12 activation and increased the up-regulation of phosphorylated p38 MAPK. When SB 203580 was presented before exposure to diazoxide and Aβ25-35, CRT expression was markedly suppressed, and the inhibition effect of diazoxide on caspase-12 activation was almost eliminated. CONCLUSIONS We showed that diazoxide induced ERS-related neuroprotection mediated by p38 MAPK against Aβ25-35 insults. From the clinical point of view, these results are of considerable importance for the understanding of AD pathogenesis. However, further studies are required to explore more detailed mechanisms of the observed effects.
Collapse
Affiliation(s)
- L Guan
- Department of Neurosurgical Intensive Care Unit, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong Province, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Ma B, Zhang J, Zhu Z, Bao X, Zhang M, Ren C, Zhang Q. Aucubin, a natural iridoid glucoside, attenuates oxidative stress-induced testis injury by inhibiting JNK and CHOP activation via Nrf2 up-regulation. Phytomedicine 2019; 64:153057. [PMID: 31419730 DOI: 10.1016/j.phymed.2019.153057] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [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: 04/03/2019] [Revised: 06/28/2019] [Accepted: 07/26/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Eucommia ulmoides has been used for many years as a successful strategy to treat male infertility. Aucubin (AU) is the active ingredient extracted from Eucommia ulmoides. However, its protective action and exact mechanism on testicular injury is not yet known. PURPOSE Here, the protective effect and the mechanism of action of AU on testis damage under oxidative stress was investigated in vivo and in vitro. METHODS As regard the in vivo experiment, male mice were divided into five groups and testicular injury model was established by Triptolide (TP) (120 μg/kg) intraperitoneal injection for two weeks. Animals in the treatment group were pretreated with an intraperitoneal injection of AU at different doses (5, 10 and 20 mg/kg) for 1 h and subsequently treated with TP (120 μg/kg). At the end of the experimental period, the testis was collected for biochemical and histological examination. As regard the in vitro experiment, Sertoli cells (SCs) were used to investigate the protective effect and mechanism of action of AU against disruption of the blood-testis-barrier (BTB) and apoptosis induced by TP via apoptosis detection, western blot, immunofluorescence analysis, and siRNA transient transfection. RESULTS TP-treated animals showed testicular atrophy, BTB disruption, increased ROS levels and spermatogenic dysfunction. Pre-administration of AU resulted in a significant protection on keeping a normal testicular weight, sperm morphology, BTB integrity, and a normal level of oxidative stress markers and antioxidants. Furthermore, AU prevented apoptosis through an effective inhibition of PERK/CHOP and JNK dependent apoptosis pathway, as well as protected the integrity of BTB by up-regulating the expression of tight junction proteins (ZO-1, Occludin, Claudin-11) and gap junction protein (Cx43). The mechanistic study revealed that AU significantly triggered Nrf2 translocation, thus increasing nuclear Nrf2 accumulation and then induced antioxidant enzymes expression in the testis and SCs. Furthermore, Nrf2 silencing unsuccessfully reversed the increased CHOP and p-JNK expression induced by TP, abolishing the protective effect of AU. CONCLUSION These results indicate that AU might be considered as a potential protective agent against testicular injury.
Collapse
Affiliation(s)
- Bo Ma
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, People's Republic of China
| | - Jie Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, People's Republic of China
| | - Zhiming Zhu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, People's Republic of China
| | - Xiaowen Bao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, People's Republic of China
| | - Mingya Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, People's Republic of China
| | - Chaoxing Ren
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, People's Republic of China
| | - Qi Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, People's Republic of China.
| |
Collapse
|
37
|
Liao N, Chen B, Zhang G, Ren C, Wang Y, Guo L, Cao L, Wen L, Li K, Jia M, Li C, Mok H, Chen X, Wei G, Lin J, Zhang Z, Hou T, Shi X, HanZhang H, Liu H. Frequency of germline mutations in women’s cancer susceptibility genes in a large cohort of Chinese breast cancer patients. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz240.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
38
|
Li Y, Wang Z, Yang H, Li Q, Liu H, Wang D, Xi S, Qiu M, Ren C. Paclitaxel in combination with cisplatin and 5-fluorouracil (TPF) induction chemotherapy for locally advanced borderline-resectable esophageal squamous cell carcinoma: A phase II clinical trial. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
39
|
Ren C, Li XH, Wu Y, Dong N, Yao YM. [Influence of vagus nerve on multiple organ function and immune reaction of T lymphocytes in septic rats]. Zhonghua Shao Shang Za Zhi 2019; 34:815-820. [PMID: 30481924 DOI: 10.3760/cma.j.issn.1009-2587.2018.11.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore influence of vagus nerve on multiple organ function and immune reaction of T lymphocytes in septic rats. Methods: Forty Sprague-Dawley rats were divided into sham injury group, sepsis group, vagus nerve stimulation (VNS) group, and vagotomy (VGX) group, according to the random number table, with 10 rats in each group. Rats in sepsis group, VNS group, and VGX group were inflicted with sepsis by cecal ligation and puncture (CLP). Rats in VNS group were given electrical stimulation on left cervical vagus nerve for 15 min right after CLP. Rats in VGX group underwent vagotomy of left cervical vagus nerve at 30 min before CLP. At 24 h after CLP, serum of rats was collected to detect levels of alanine transaminase (ALT), aspartate aminotransferase (AST), glycocholic acid (CG), creatine kinase (CK), myocardial creatine kinase (CK-MB), blood urea nitrogen (BUN), and serum creatinine by fully automatic biochemistry analyzer. The left lung of rats was collected to determine wet or dry mass, and wet to dry (W/D) ratio was calculated. The right lung of rats was collected to measure the activity of pulmonary myeloperoxidase (MPO) by enzyme linked immunosorbent assay (ELISA). Spleen of rats was collected to determine the proliferative activity of CD4(+) T lymphocytes by cell counting kit 8, and real-time fluorescence quantitative polymerase chain reaction and ELISA were used to quantify mRNA expressions and levels of interleukin 2 (IL-2), interferon-γ, and IL-4, respectively. Data were processed with one-way analysis of variance and Tukey's honest significant difference test. Results: (1) The levels of serum ALT, AST, CG, CK, CK-MB, BUN, and creatinine, pulmonary W/D ratio, as well as MPO activity of rats in sepsis group were significantly higher than those in sham injury group and VNS group (P<0.01) and were significantly lower than those in VGX group (P<0.01). (2) The proliferative activity of CD4(+) T lymphocytes of rats in sepsis group was 0.93±0.03, which was significantly lower than 1.54±0.07 of rats in sham injury group (P<0.01). The proliferative activity of CD4(+) T lymphocytes of rats in VNS group was 1.15±0.15, which was significantly higher than that of rats in sepsis group (P<0.01). The proliferative activity of CD4(+) T lymphocytes of rats in VGX group was 0.75±0.06, which was obviously lower than that of rats in sepsis group (P<0.01). (3) In comparison with those of rats in sham injury group, the levels of IL-2 and interferon-γ in CD4(+) T lymphocytes of rats in sepsis group were markedly decreased (P<0.01), while the level of IL-4 was significantly increased (P<0.01). In comparison with those of rats in sepsis group, the levels of IL-2 and interferon-γ in CD4(+) T lymphocytes of rats in VNS group were obviously increased (P<0.01), while the level of IL-4 was markedly decreased (P<0.01). As compared with those of rats in sepsis group, the levels of IL-2 and interferon-γ in CD4(+) T lymphocytes of rats in VGX group were markedly decreased (P<0.01), while the level of IL-4 was significantly increased (P<0.01). (4) As compared with those of rats in sham injury group, expressions of IL-2 and interferon-γ mRNA in CD4(+) T lymphocytes of rats in sepsis group were markedly decreased (P<0.01), while expression of IL-4 mRNA was significantly increased (P<0.01). Expressions of IL-2 and interferon-γ mRNA in CD4(+) T lymphocytes of rats in VNS group were obviously increased when compared with those of rats in sepsis group (P<0.01), while expression of IL-4 mRNA was markedly decreased (P<0.01). In comparison with those of rats in sepsis group, expressions of IL-2 and interferon-γ mRNA in CD4(+) T lymphocytes of rats in VGX group were markedly decreased (P<0.01), while expression of IL-4 mRNA was significantly increased (P<0.01). Conclusions: Electrical stimulation of vagus nerve can significantly improve multiple organ dysfunction and reverse immunosuppression of T lymphocytes in septic rats, while vagotomy of vagus nerve may enhance the susceptibility of rats to sepsis.
Collapse
Affiliation(s)
- C Ren
- Trauma Research Center, the First Hospital Affiliated to the PLA General Hospital, Beijing 100048, China
| | | | | | | | | |
Collapse
|
40
|
Ren C, Chen SM, Zu LY, Xu SL, Guo LJ. [Relationship between angiopoietin-2 and vascular endothelial factor and vasodilation function in hypertensive patients]. Zhonghua Yi Xue Za Zhi 2019; 99:934-938. [PMID: 30917444 DOI: 10.3760/cma.j.issn.0376-2491.2019.12.011] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the relationship between angiopoietin 2 (Ang2) and vascular endothelial factor and vasodilation function in hypertensive patients. Methods: Patients with new onset grade 1~2 hypertension (n=40) and healthy control group (n=25) wereenrolledprospectively. Serum Ang2 and nitric oxide (NO), nitric oxide synthase (eNOS), endothelin-1 (ET-1) were measured in both groups. Flow-mediated vasodilation (FMD) were measured in hypertensive patients. The above indicators were reviewed in hypertensive patients after antihypertensive treatment until blood pressure<140/90 mmHg. Results: Compared with the control group, serum Ang2 (P=0.049) and ET-1 (P<0.001) were significantly higher. Serum NO (P<0.001) and eNOS (P<0.001) was significantly lower in the hypertensive group. Compared with baseline, serum Ang2 (P=0.049) and ET-1 (P<0.001) were decreased significantly, meanwhile serum NO (P<0.001) and eNOS (P<0.001) were significantly increased. Serum Ang2 after antihypertensive treatment was not significantly different from that of the control group, but no statistical difference was observed in FMD after antihypertensive therapy. Correlation analysis found that serum Ang2 was positively correlated with mean arterial pressure (R=0.432, P<0.001), and negative correlated with serum NO(R=-0.374, P=0.001) and FMD (R=-0.368 0, P=0.002). Multiple linear regression found that serum Ang2 was independently associated with body mass index, mean arterial pressure, and serum NO. Conclusion: Serum Ang 2 can reflect the degree of endothelial and vasodilation impairment in hypertensive patients. Antihypertensive therapy can improve endothelial function, but whether it can restore damaged vasodilation function needs further verification.
Collapse
Affiliation(s)
- C Ren
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital; NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| | | | | | | | | |
Collapse
|
41
|
Wang Y, Guo L, Cao L, Jia M, Wen L, Ren C, Zhang G, Liao N. Abstract P5-04-25: Characterization of FGFR1/2 genetic alterations reveals novel fusions of FGFR1 in Chinese breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p5-04-25] [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: 11/16/2022]
Abstract
Abstract
Background: Deregulation of fibroblast growth factor receptor 1 (FGFR1) signalling has been extensively studied in various tumor types, and has been implicated in driving endocrine resistance in breast cancer. Genetic alterations of FGFR1, especially FGFR1 amplification, is one of particularly important mechanisms leading to enhanced FGFR signaling in breast cancer. However, the prevalence of FGFR1/2 genetic variations in Chinese breast cancer patients has not been well explored.
Methods: To investigate the characteristics of FGFR1 and FGFR2 genetic variations in Chinese breast cancer, we employed customized next-generation sequencing panel to screen the somatic mutation or copy number variations of FGFR1/2 in primary breast cancer tissues by using two ongoing breast cancer Cohorts, in which we have recruited 289 of early breast cancer patients (EBC Cohort) and 74 of advanced breast cancer patients (ABC Cohort).
Results: In EBC Cohort, we found FGFR1 amplification in 9.0% (26/289) patients and FGFR2 amplification in 2.1% (6/289) patients, and also found 3 of somatic FGFR1 mutations (FGFR1 p.W4C; p.E334K; p.V396I ) and 2 of FGFR2 mutations (FGFR2 p.S702L; p.Y779*). Unlike the comparable prevalence of FGFR2 genetic variations in 2.8% (8/289) of EBC Cohort and 2.7% (2/74; one amplification event and one FGFR2 p.E499D mutation) of ABC Cohort, there were more FGFR1 genetic alterations in ABC Cohort (27%; 20/74 patients; p<0.001), including 19 events of FGFR1 amplification and 1 of FGFR1 c.2186+20G>A intron mutation. More importantly, we identified 5 novel FGFR1 fusion genes in our cohorts, including TACC1-FGFR1, FGFR1-KCNU1, FGFR1-MIR1268A, FGFR1-LZTS1-AS1 and FGFR1-RNF5P1. Although FGFR1-TACC1 fusion gene has been previously reported in breast cancer and TACC1 is fused to the C-terminal of FGFR1 protein leading to aberrant activation of FGFR1, we found TACC1 was fused to the N-terminal of FGFR1 at exon 6 of FGFR1 in our study. In addition, we identified and verified FGFR1-MIR1268A fusion gene at mRNA level using RNA-seq analysis, and further found this fusion gene might result in the truncation of FGFR1.
Conclusions: Collectively, we characterized the prevalence of FGFR1/2 genetic alterations in Chinese breast cancer, and identified 5 of novel FGFR1 fusion genes. The potential roles for novel FGFR1 fusion genes in regulating breast cancer cellular biology and in affecting the efficacy of endocrine therapy have been under the investigation in our laboratory, and the result from which will help us better elucidate the molecular mechanism of FGFR1 in driving the resistance of endocrine therapy.
This study was supported by funding from National Natural Science Foundation of China (Grant No. 81602645), Guangdong Provincial Natural Science Foundation (Grant No. 2016A030313768) and Research Funds from Guangzhou Science and Technology Bureau (Grant No. 201707010418 and 201804010430).
Citation Format: Wang Y, Guo L, Cao L, Jia M, Wen L, Ren C, Zhang G, Liao N. Characterization of FGFR1/2 genetic alterations reveals novel fusions of FGFR1 in Chinese breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P5-04-25.
Collapse
Affiliation(s)
- Y Wang
- Cancer Center Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - L Guo
- Cancer Center Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - L Cao
- Cancer Center Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - M Jia
- Cancer Center Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - L Wen
- Cancer Center Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - C Ren
- Cancer Center Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - G Zhang
- Cancer Center Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - N Liao
- Cancer Center Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| |
Collapse
|
42
|
Abstract
We aimed to determine the effects of miR-433 on the malignant behaviors of ovarian cancer cells, as well as to elucidate the possible mechanisms of ovarian cancer development. A total of 9 ovarian cancer tissues and 9 matched normal ovary tissues were obtained, and the expression levels of miR-433 and Notch1 were then determined by real-time PCR. Human ovarian cancer cell lines SKOV3 and OVCAR3 were transfected with miR-433 mimics, negative miR-control and Notch1 siRNA. The expression of Notch1 protein in transfected cells was determined by western blot. In addition, the proliferation, migration and invasion of SKOV3 and OVCAR3 cells in vitro were then evaluated using Cell Counting Kit 8, wound healing assay and Transwell invasion assay, respectively. Besides, bioinformatics methods and luciferace reporter assay were performed to confirm whether Notch1 was a direct target of miR-433. The expression of miR-433 was markedly down-regulated while Notch1 expression was significantly up-regulated in ovarian cancer tissues compared with matched normal ovary tissues. Overexpression of miR-433 significantly inhibited the migration and invasion of ovarian cancer cells, but had not significant effects on cell proliferation. In addition, Notch1 was a direct target of miR-433. Besides, down-regulation of Notch1 inhibited the invasion of ovarian cancer cells. Our findings indicate that miR-433 may inhibit cell migration and invasion in the development of ovarian cancer via down-regulation of Notch1. Notch1 may serve as a potential target in cancer therapy.
Collapse
|
43
|
Shi Y, Zhang G, Wang Y, Ren C, Wen L, Guo L, Liao N. Correlation between circulating tumor cells and the aromatase inhibitors therapy in postoperative patients with early breast cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy426.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
44
|
Xu R, Wang F, Feng F, Li Q, Xu N, Hu X, Liao W, Jiang Y, Lin X, Zhang Q, Yuan X, Huang H, Chen Y, Dai G, Shi J, Shen L, Ren C, Wu H, Feng H, Yao S. Recombinant humanized anti-PD-1 monoclonal antibody (JS001) in patients with refractory/metastatic nasopharyngeal carcinoma: Preliminary results of an open-label phase II clinical study. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy288.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
45
|
Shang WL, Betti R, Hu SX, Woo K, Hao L, Ren C, Christopherson AR, Bose A, Theobald W. Electron Shock Ignition of Inertial Fusion Targets. Phys Rev Lett 2017; 119:195001. [PMID: 29219482 DOI: 10.1103/physrevlett.119.195001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Indexed: 06/07/2023]
Abstract
It is shown that inertial confinement fusion targets designed with low implosion velocities can be shock-ignited using laser-plasma interaction generated hot electrons (hot-e's) to obtain high energy gains. These designs are robust to multimode asymmetries and are predicted to ignite even for significantly distorted implosions. Electron shock ignition requires tens of kilojoules of hot-e's which can be produced only at a large laser facility like the National Ignition Facility, with the laser-to-hot-e conversion efficiency greater than 10% at laser intensities ∼10^{16} W/cm^{2}.
Collapse
Affiliation(s)
- W L Shang
- Fusion Science Center and Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
- Departments of Mechanical Engineering and Physics and Astronomy, University of Rochester, Rochester, New York 14623, USA
| | - R Betti
- Fusion Science Center and Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
- Departments of Mechanical Engineering and Physics and Astronomy, University of Rochester, Rochester, New York 14623, USA
| | - S X Hu
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - K Woo
- Fusion Science Center and Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
- Departments of Mechanical Engineering and Physics and Astronomy, University of Rochester, Rochester, New York 14623, USA
| | - L Hao
- Departments of Mechanical Engineering and Physics and Astronomy, University of Rochester, Rochester, New York 14623, USA
| | - C Ren
- Departments of Mechanical Engineering and Physics and Astronomy, University of Rochester, Rochester, New York 14623, USA
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - A R Christopherson
- Fusion Science Center and Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
- Departments of Mechanical Engineering and Physics and Astronomy, University of Rochester, Rochester, New York 14623, USA
| | - A Bose
- Fusion Science Center and Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
- Departments of Mechanical Engineering and Physics and Astronomy, University of Rochester, Rochester, New York 14623, USA
| | - W Theobald
- Fusion Science Center and Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| |
Collapse
|
46
|
Wong O, McNiven A, Chan B, Moseley J, Lee J, Le L, Ren C, Waldron J, Bissonnette J, Giuliani M, Zhang B. Evaluation of Differences Between Estimated Delivered Dose and Planned Dose in Nasopharynx Patients Using Deformable Image Registration and Dose Accumulation. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
47
|
Wong O, McNiven A, Chan B, Lee J, Moseley J, Ren C, Bratman S, Hope A, Bissonnette J, Waldron J, Zhang B, Giuliani M. Interobserver Variability and Dosimetric Impact in Structure Delineation of Organs at Risk on Cone Beam CT. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.2379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
48
|
Wang FH, Ren C, Zhang Y, Yao S, Feng H, Wu H, Song HF, Zhang R, Wei XL, Xia XJ, Zhao Q, Yun JP, Zou BY, Qiu M, Wang ZQ, Li YH, Xu R. Phase Ia study of a humanized anti-PD-1 monoclonal antibody (JS001) in Chinese patients with refractory solid tumors. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx376.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
49
|
Shi Y, Liao N, Zhang G, Ren C, Wen L, Zhu W, Chen X. Higher MCTS1 mRNA level in breast cancer may associate with an unfavorable outcome. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx365.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
50
|
Ren C, Song XC, Zhu L, Ai FF, Shi HH, Sun ZJ, Chen J, Lang JH. [Prospective cohort study on the outcomes of sacrospinous ligament fixation using conventional instruments in treating stage Ⅲ-Ⅳ pelvic organ prolapse]. Zhonghua Fu Chan Ke Za Zhi 2017. [PMID: 28647958 DOI: 10.3760/cma.j.issn.0529-567x.2017.06.003] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the medium and long term safety and efficacy of sacrospinous ligament fixation (SSLF) performed with conventional instruments in treating stage Ⅲ-Ⅳ pelvic organ prolapse (POP). Methods: A prospective cohort analysis was conducted in the Peking Union Medical College Hospital, between May 2007 and June 2015, enrolling 55 women with stage Ⅲ-Ⅳ POP who intended to receive SSLF. Primary end points were objective success rates using pelvic organ prolapse quantitation system (POP-Q) and subjective satisfaction rates with questionnaires after surgery according to vaginal examination and related questionnaires for all patients who received SSLF eventually. Exploratory outcomes included perioperative parameters and complications. Results: Of these 55 POP patients enrolled, 52 (95%, 52/55) received SSLF using conventional surgical instruments, the other 3 cases converted to ischial spinous fascia fixation due to difficulty exposing. Medium blood loss during operation was 100 ml (20-300 ml) and operative time 60 minutes (20-165 minutes). Pelvic hematoma with diameters of 5 cm and 7 cm were observed in two patients, both recovered fully with conservative methods. All patients were able to micturate spontaneously after catheter withdrawal. One patient reported right thigh pain after operation which remained till 3-month follow-up and relieved after physiotherapy. The objective success rate was 100% (52/52) at 3 months. With a medium follow-up time of 23.7 months, the objective success rate was 98% (51/52), the recurrence rate was 2% (1/52) and the satisfactory rate was 94% (49/52). De novo urinary incontinence occurred in 6% (3/52) of patients. Conclusion: Most POP could be corrected with SSLF using conventional instruments which is a feasible, economic and effective procedure for Asian patients with medium compartment prolapse.
Collapse
Affiliation(s)
- C Ren
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | | | | | | | | | | | | | | |
Collapse
|