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Jiang S, Guo S, Huang Y, Xu J, Li Y, Zeng Y, Guo Y, Ouyang L, Zhu C, Zhao W, Zhang Q, Guo Q, Xin H, Xie Q. Interim analysis of the PARADISE study: Benefits of add-on peginterferon-α in NA-treated patients with CHB. Antiviral Res 2024; 226:105892. [PMID: 38663455 DOI: 10.1016/j.antiviral.2024.105892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/13/2024] [Accepted: 04/20/2024] [Indexed: 04/29/2024]
Abstract
This study aimed to investigate whether peginterferon-α (IFN) add-on nucleos(t)ide analogs(NAs) can further reduce hepatocellular carcinoma(HCC) risk compared with NAs monotherapy in NA-treated patients with chronic hepatitis B(CHB). In this multi-center randomized controlled trial "PARADISE study" (NCT05671315), CHB patients with intermediate to high risk of HCC after more than 24-week NAs pretreatment were recruited, randomized to two groups at a ratio of 1:2 and followed up for 240 weeks. NAs group maintained NAs monotherapy, while IFN + NAs group received IFN add-on NAs therapy for 48 weeks, then switched to NAs monotherapy. Totally, 196 patients were included in interim analysis (NAs group 68, IFN + NAs group 128). The 96-week cumulative HCC incidence was lower in IFN + NAs group than NAs group (0% vs. 4.5%, p < 0.05). Compared with NAs group, IFN + NAs group had significantly higher rates of HBsAg loss at week 48 and 96 (22.7% vs. 0%; 16.7% vs. 0%, both p < 0.05). A new scoring system was established to predict HBsAg decline >2log10 IU/ml, HBsAg <10 IU/ml or HBsAg loss at the end of 48-week IFN treatment. The area under ROC curve was 0.914, 0.922 or 0.905 in the original cohort (n = 128) and 0.896, 0.896 or 0.864 in the external validation cohort (n = 162) for the aforementioned three outcomes, respectively. IFN add-on NAs therapy may suggest the dual benefits of reducing HCC development and facilitating HBsAg loss among NA-treated CHB patients with intermediate to high risk of HCC. The new scoring system helps to make the most of IFN treatment for a higher cost-effectiveness in healthcare.
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Affiliation(s)
- Shaowen Jiang
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Simin Guo
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Huang
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Xu
- Department of Infectious Diseases, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi Li
- Department of Infectious Disease, Anhui Provincial Hospital, Hefei, Anhui, China
| | - Yilan Zeng
- Department of Hepatology, Chengdu Public Health Clinical Medical Center, Chengdu, Sichuan, China
| | - Yuan Guo
- Department of Liver Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Lijuan Ouyang
- Department of Hepatology, Xiamen Hospital of Traditional Chinese Medicine, Xiamen, Fujian, China
| | - Chuanwu Zhu
- Department of Infectious Diseases, The Affiliated Infectious Diseases Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Weifeng Zhao
- Department of Infectious Diseases, Xinxiang Medical University Third Hospital, Xinxiang, Henan, China
| | - Qin Zhang
- Department of Infectious Diseases, Phase I Clinical Trial Unit, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qing Guo
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Haiguang Xin
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Qing Xie
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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2
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Jiang S, Guo S, Huang Y, Yin Y, Feng J, Zhou H, Guo Q, Wang W, Xin H, Xie Q. Predictors of HBsAg seroclearance in patients with chronic HBV infection treated with pegylated interferon-α: a systematic review and meta-analysis. Hepatol Int 2024:10.1007/s12072-024-10648-8. [PMID: 38461186 DOI: 10.1007/s12072-024-10648-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 01/22/2024] [Indexed: 03/11/2024]
Abstract
BACKGROUND AND AIMS The identification of reliable predictors for hepatitis B surface antigen (HBsAg) seroclearance remains controversial. We aimed to summarize potential predictors for HBsAg seroclearance by pegylated interferon-α (PegIFNα) in patients with chronic HBV infection. METHODS A systematic search of the Cochrane Library, Embase, PubMed, and Web of Science databases was conducted from their inception to 28 September 2022. Meta-analyses were performed following the PRISMA statement. Predictors of HBsAg seroclearance were evaluated based on baseline characteristics and on-treatment indicators. RESULTS This meta-analysis encompasses 27 studies, including a total of 7913 patients. The findings reveal several factors independently associated with HBsAg seroclearance induced by PegIFNα-based regimens. These factors include age (OR = 0.961), gender (male vs. female, OR = 0.537), genotype (A vs. B/D; OR = 7.472, OR = 10.738), treatment strategy (combination vs. monotherapy, OR = 2.126), baseline HBV DNA (OR = 0.414), baseline HBsAg (OR = 0.373), HBsAg levels at week 12 and 24 (OR = 0.384, OR = 0.294), HBsAg decline from baseline to week 12 and 24 (OR = 6.689, OR = 6.513), HBsAg decline from baseline ≥ 1 log10 IU/ml and ≥ 0.5 log10 IU/ml at week 12 (OR = 18.277; OR = 4.530), and ALT elevation at week 12 (OR = 3.622). Notably, subgroup analysis suggests no statistical association between HBsAg levels at week 12 and HBsAg seroclearance for treatment duration exceeding 48 weeks. The remaining results were consistent with the overall analysis. CONCLUSIONS This is the first meta-analysis to identify predictors of HBsAg seroclearance with PegIFNα-based regimens, including baseline and on-treatment factors, which is valuable in developing a better integrated predictive model for HBsAg seroclearance to guide individualized treatment and achieve the highest cost-effectiveness of PegIFNα.
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Affiliation(s)
- Shaowen Jiang
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Simin Guo
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Huang
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yalin Yin
- School of Life Sciences, Xiamen University, Xiamen, China
| | - Jingwen Feng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Huijuan Zhou
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qing Guo
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weijing Wang
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
- Department of Infectious Diseases, Ruijin Hospital North, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Haiguang Xin
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Qing Xie
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Jiang S, Cai M, Zhang Z, Qian C, Wang J, Li Z, Guo Q, Zhou H, Xin H, Cai W, Wang H, Guo S, Huang Y, Xie Q. The potential effect of HBV vaccination on off-treatment HBsAg reversion after interferon-induced HBsAg clearance. Hum Vaccin Immunother 2023; 19:2161254. [PMID: 36683193 PMCID: PMC9980474 DOI: 10.1080/21645515.2022.2161254] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Off-treatment HBsAg reversion occurs in a considerable number of chronic hepatitis B(CHB) patients after IFN(interferon)-induced HBsAg clearance. HBV vaccination protects the general population against HBV infection. However, it remains unclear whether HBV vaccination could prevent off-treatment HBsAg reversion in CHB patients with HBsAg clearance. CHB patients (n = 199) with HBsAg clearance were included in the current study, comprising spontaneous HBsAg clearance group (n = 51), NA (nucleoside/nucleotide analogues)-induced group (n = 36) and IFN-induced group (n = 112). Log-rank test was performed to compare the cumulative incidences of HBsAg reversion between groups. Cox regression model was used to identify the factors associated with off-treatment HBsAg reversion. The 5-year cumulative incidence of HBsAg reversion in IFN-induced group was significantly higher than that in NA-induced group or spontaneous group (27.6% vs. 3.3% vs. 8.1%, both p < .05). In IFN-induced group, 66.7% of CHB patients received HBV vaccination. The cumulative incidence of HBsAg reversion in individuals with strong responses to HBV vaccination (HBsAb level >100mIU/ml) was significantly lower than that in those with weak responses to HBV vaccination (HBsAb level ≤100mIU/ml) or without HBV vaccination in IFN-induced group (7.7% vs. 58.5% vs. 31.9%, both p < .05). Multivariate Cox regression analysis confirmed strong responses to HBV vaccination were independently associated with a lower cumulative incidence of HBsAg reversion after IFN-induced HBsAg clearance (HR = 0.246, 95%CI: 0.066-0.907, p = .035). HBV vaccination has potential to prevent off-treatment HBsAg reversion in CHB patients after IFN-induced HBsAg clearance via a sufficiently high level of HBsAb, helping clinicians optimize the clinical management of such patients.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Yan Huang
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qing Xie
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Ma T, Meng Z, Ghaffari M, Lv J, Xin H, Zhao Q. Characterization and profiling of the microRNA in small extracellular vesicles isolated from goat milk samples collected during the first week postpartum. JDS Commun 2023; 4:507-512. [PMID: 38045901 PMCID: PMC10692291 DOI: 10.3168/jdsc.2022-0369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 04/06/2023] [Indexed: 12/05/2023]
Abstract
Colostrum contains nutrients, immunoglobulins, and various bioactive compounds such as microRNA (miRNA). Less is known about the temporal changes in miRNA profiles in ruminant milk samples during the first week postpartum. In this study, we characterized and compared the profiles of miRNA in the small extracellular vesicles (sEV) isolated from colostrum (CM, collected immediately after parturition, n = 8) and transition milk (TM, collected 7 d postpartum, n = 8) from eight 1-yr-old Guanzhong dairy goats with a milk yield of approximately 500 kg/year. A total of 192 unique sEV-associated miRNA (transcripts per million >1 at least 4 samples in either CM or TM) were identified in all samples. There were 29 miRNA uniquely identified in the TM samples while no miRNA was uniquely identified in the CM samples. The abundance of the top 10 miRNA accounted for 82.4% ± 4.0% (± SD) of the total abundance, with let-7 families (e.g., let-7a/b/c-5p) being predominant in all samples. The top 10 miRNA were predicted to target 1,008 unique genes that may regulate pathways such as focal adhesion, TGF-β signaling, and axon guidance. The expression patterns of EV miRNA were similar between the 2 sample groups, although the abundance of let-7c-5p and miR-30a-3p was higher, whereas that of let-7i-5p and miR-103-3p was lower in CM than in TM. In conclusion, the core miRNAome identified in the samples from CM and TM may play an important role in cell proliferation, bone homeostasis, and neuronal network formation in newborn goat kids. The lack of differential miRNA expression between the CM and TM samples may be due to a relatively short sampling interval in which diet composition, intake and health status of ewes, and environment were relatively stable.
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Affiliation(s)
- T. Ma
- Institute of Feed Research, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Z. Meng
- Inner Mongolia Academy of Agriculture and Animal Husbandry Sciences, Hohhot, 010030, China
| | - M.H. Ghaffari
- Institute of Animal Science, University of Bonn, Bonn, 53115, Germany
| | - J. Lv
- College of Animal Sciences and Technology, Northeast Agricultural University, Harbin, 150030, China
| | - H. Xin
- College of Animal Sciences and Technology, Northeast Agricultural University, Harbin, 150030, China
| | - Q. Zhao
- Inner Mongolia Academy of Agriculture and Animal Husbandry Sciences, Hohhot, 010030, China
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Wang J, Wu J, He Z, Xin H. Letter: PCSK9 inhibitor for liver transplant patients during the post-statin era? Aliment Pharmacol Ther 2023; 57:185-186. [PMID: 36480716 DOI: 10.1111/apt.17258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 10/20/2022] [Accepted: 10/10/2022] [Indexed: 12/13/2022]
Affiliation(s)
- Jiamei Wang
- Department of Cardiology, Second Affiliated Hospital of Naval Medical University, Shanghai, China.,Shanghai Cardiovascular Institute of Integrative Medicine, Shanghai, China
| | - Jia Wu
- Department of Health Management Center, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Zhiqing He
- Department of Cardiology, Second Affiliated Hospital of Naval Medical University, Shanghai, China.,Shanghai Cardiovascular Institute of Integrative Medicine, Shanghai, China
| | - Haiguang Xin
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Liang W, Jiang S, Chai Y, Liu W, L. Liu, Song P, Wang Z, Zhang S, Xin H, Liu X, Xu S, Zhang H, Han Y, Shen W, Peng Z, Geng M, Yu G, Zhang X, He J. 1118P Real-world adjuvant treatment patterns in patients with stage I-III EGFR-mutated non-small cell lung cancer (NSCLC) in China: Interim analysis from the ADDRESS study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1243] [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] Open
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Cao Z, Zhang C, Zhao S, Sheng Z, Xiang X, Li R, Qian Z, Wang Y, Chen B, Li Z, Liu Y, An B, Zhou H, Cai W, Wang H, Gui H, Xin H, Xie Q. COVID-19 vaccines in patients with decompensated cirrhosis: a retrospective cohort on safety data and risk factors associated with unvaccinated status. Infect Dis Poverty 2022; 11:56. [PMID: 35578350 PMCID: PMC9108345 DOI: 10.1186/s40249-022-00982-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 05/05/2022] [Indexed: 12/27/2022] Open
Abstract
Background Safety data reported from the large-scale clinical trials of the coronavirus disease 2019 (COVID-19) vaccine are extremely limited in patients with decompensated cirrhosis. The vaccination campaign in this specific population could be difficult due to uncertainty about the adverse events following vaccination. We aimed to assessed the COVID-19 vaccination rate, factors associated with unvaccinated status, and the adverse events following vaccination in patients with decompensated cirrhosis. Methods This is a retrospective study from Ruijin Hospial (Shanghai, China) on an ongoing prospective cohort designed for long-term survival analysis of decompensated cirrhotic patients who recovered from decompensating events or acute-on-chronic liver failure (ACLF) between 2016 and 2018. We assessed the COVID-19 vaccination rate, the number of doses, type of vaccine, safety data, patient-reported reasons for remaining unvaccinated, factors associated with unvaccinated status, and the adverse events of COVID-19 vaccine. Binary logistic regression was used for identifying factors associated with unvaccinated status. Results A total of 229 patients with decompensated cirrhosis without previous SARS-CoV-2 infection participated (mean age, 56 ± 12.2 years, 75% male, 65% viral-related cirrhosis). Mode of decompensation were grade II‒III ascites (82.5%), gastroesophageal varices bleeding (7.9%), hepatic encephalopathy (7.9%). Eighty-five participants (37.1%) received at least one dose of vaccination (1 dose: n = 1, 2 doses: n = 65, 3 doses: n = 19) while 62.9% remained unvaccinated. Patient-reported reasons for remaining unvaccinated were mainly fear of adverse events (37.5%) and lack of positive advice from healthcare providers (52.1%). The experience of hepatic encephalopathy (OR = 5.61, 95% CI: 1.24–25.4) or ACLF (OR = 3.13, 95% CI: 1.12–8.69) and post-liver transplantation status (OR = 2.47, 95% CI: 1.06–5.76) were risk factors of remaining unvaccinated independent of residential areas. The safety analysis demonstrated that 75.3% had no adverse events, 23.6% had non-severe reactions (20% injection-site pain, 1.2% fatigue, 2.4% rash) and 1.2% had a severe event (development of acute decompensation requiring hospitalization). Conclusions Patients with decompensated cirrhosis in eastern China are largely remained at unvaccinated status, particularly those with previous episodes of ACLF or hepatic encephalopathy and liver transplantation recipients. Vaccination against COVID-19 in this population is safe. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s40249-022-00982-0.
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Affiliation(s)
- Zhujun Cao
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Chenxi Zhang
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.,The First People's Hospital of Yunnan Province, Medical School, Kunming University of Science and Technology, Kunming, China
| | - Shuang Zhao
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Zike Sheng
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Xiaogang Xiang
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Ruokun Li
- Department of Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhuping Qian
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.,Department of Nursing, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yinling Wang
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.,Department of Hepatology, The Affiliated Infectious Diseases Hospital of Soochow University, Suzhou, China
| | - Bin Chen
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.,Department of Infectious Diseases, Wuwei People's Hospital, Gansu, China
| | - Ziqiang Li
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Yuhan Liu
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Baoyan An
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Huijuan Zhou
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Wei Cai
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Hui Wang
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Honglian Gui
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Haiguang Xin
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Qing Xie
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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Cao Z, Gui H, Sheng Z, Xin H, Xie Q. Letter to the editor: Exacerbation of autoimmune hepatitis after COVID-19 vaccination. Hepatology 2022; 75:757-759. [PMID: 34862637 PMCID: PMC9015495 DOI: 10.1002/hep.32269] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 11/30/2021] [Accepted: 12/01/2021] [Indexed: 02/06/2023]
Affiliation(s)
- Zhujun Cao
- Department of Infectious DiseasesRuijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Honglian Gui
- Department of Infectious DiseasesRuijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Zike Sheng
- Department of Infectious DiseasesRuijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Haiguang Xin
- Department of Infectious DiseasesRuijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Qing Xie
- Department of Infectious DiseasesRuijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
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Zi Y, Gao J, Wang C, Guan Y, Li L, Ren X, Zhu L, Mu Y, Chen SH, Zeng Z, Cao Z, Rong Z, Chen P, Zhang X, Chen T, Xin H, Li X, Li Z, Sun L, Deng Y, Li N, Nie Y. Pantothenate Kinase 1 Inhibits the Progression of Hepatocellular Carcinoma by Negatively Regulating Wnt/β-catenin Signaling. Int J Biol Sci 2022; 18:1539-1554. [PMID: 35280671 PMCID: PMC8898371 DOI: 10.7150/ijbs.67842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 12/31/2021] [Indexed: 11/05/2022] Open
Abstract
Hyperactivation of Wnt/β-catenin signaling has been reported in hepatocellular carcinoma (HCC). However, the mechanisms underlying the hyperactivation of Wnt/β-catenin signaling are incompletely understood. In this study, Pantothenate kinase 1 (PANK1) is shown to be a negative regulator of Wnt/β-catenin signaling. Downregulation of PANK1 in HCC correlates with clinical features. Knockdown of PANK1 promotes the proliferation, growth and invasion of HCC cells, while overexpression of PANK1 inhibits the proliferation, growth, invasion and tumorigenicity of HCC cells. Mechanistically, PANK1 binds to CK1α, exerts protein kinase activity and cooperates with CK1α to phosphorylate N-terminal serine and threonine residues in β-catenin both in vitro and in vivo. Additionally, the expression levels of PANK1 and β-catenin can be used to predict the prognosis of HCC. Collectively, the results of this study highlight the crucial roles of PANK1 protein kinase activity in inhibiting Wnt/β-catenin signaling, suggesting that PANK1 is a potential therapeutic target for HCC.
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Ren X, Rong Z, Liu X, Gao J, Xu X, Zi Y, Mu Y, Guan Y, Cao Z, Zhang Y, Zeng Z, Fan Q, Wang X, Pei Q, Wang X, Xin H, Li Z, Nie Y, Qiu Z, Li N, Sun L, Deng Y. The protein kinase activity of NME7 activates Wnt/β-Catenin signaling to promote one-carbon metabolism in hepatocellular carcinoma. Cancer Res 2021; 82:60-74. [PMID: 34764205 DOI: 10.1158/0008-5472.can-21-1020] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 09/11/2021] [Accepted: 11/08/2021] [Indexed: 11/16/2022]
Abstract
Metabolic reprogramming by oncogenic signaling is a hallmark of cancer. Hyperactivation of Wnt/β-catenin signaling has been reported in hepatocellular carcinoma (HCC). However, the mechanisms inducing hyperactivation of Wnt/β-catenin signaling and strategies for targeting this pathway are incompletely understood. In this study, we find nucleoside diphosphate kinase 7 (NME7) to be a positive regulator of Wnt/β-catenin signaling. Upregulation of NME7 positively correlated with the clinical features of HCC. Knockdown of NME7 inhibited HCC growth in vitro and in vivo, while overexpression of NME7 cooperated with c-Myc to drive tumorigenesis in a mouse model and promote the growth of tumor-derived organoids. Mechanistically, NME7 bound and phosphorylated serine 9 of GSK3β to promote β-catenin activation. Furthermore, MTHFD2, the key enzyme in one-carbon metabolism, was a target gene of β-catenin and mediated the effects of NME7. Tumor-derived organoids with NME7 overexpression exhibited increased sensitivity to MTHFD2 inhibition. Additionally, expression levels of NME7, β-catenin and MTHFD2 correlated with each other and with poor prognosis in HCC patients. Collectively, this study emphasizes the crucial roles of NME7 protein kinase activity in promoting Wnt/β-catenin signaling and one-carbon metabolism, suggesting NME7 and MTHFD2 as potential therapeutic targets for HCC.
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Affiliation(s)
- Xinxin Ren
- Xiangya Cancer Center, Xiangya Hospital, Central South University
| | - Zhuoxian Rong
- Xiangya Cancer Center, Xiangya Hospital, Central South University
| | - Xiaoyu Liu
- Department of Interventional Radiology, Ruijin Hospital
| | - Jie Gao
- Xiangya Cancer Center, Xiangya Hospital, Central South University
| | - Xu Xu
- Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Yuyuan Zi
- Xiangya Cancer Center, Xiangya Hospital, Central South University
| | - Yun Mu
- Xiangya Cancer Center, Xiangya Hospital, Central South University
| | | | - Zhen Cao
- Xiangya Cancer Center, Xiangya Hospital, Central South University
| | - Yuefang Zhang
- Institute of Neuroscience, State Kay Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences
| | - Zimei Zeng
- Xiangya Cancer Center, Xiangya Hospital, Central South University
| | - Qi Fan
- Xiangya Cancer Center, Xiangya Hospital, Central South University
| | - Xitao Wang
- Xiangya Cancer Center, Xiangya Hospital, Central South University
| | - Qian Pei
- Xiangya Hospital Central South University
| | - Xiang Wang
- Department of Pharmacy, Xiangya Hospital, Central South University
| | - Haiguang Xin
- Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Zhi Li
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha 410008, China
| | | | - Zilong Qiu
- Molecular Neuroscience, Institute of Neuroscience, Chinese Academy of Sciences
| | - Nan Li
- The Eestern Hepatobiliary Surgery Hospital, Second Military Medical University
| | | | - Yuezhen Deng
- Xiangya Cancer Center, Xiangya Hospital, Central South University
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Lai R, Zhou T, Xiang X, Lu J, Xin H, Xie Q. Neutralizing monoclonal antibodies present new prospects to treat SARS-CoV-2 infections. Front Med 2021; 15:644-648. [PMID: 33909259 PMCID: PMC8079842 DOI: 10.1007/s11684-021-0847-4] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Accepted: 02/20/2021] [Indexed: 11/30/2022]
Abstract
The coronavirus disease 2019 (COVID-19) has caused global public health and economic crises. Thus, new therapeutic strategies and effective vaccines are urgently needed to cope with this severe pandemic. The development of a broadly neutralizing antibody against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is one of the attractive treatment strategies for COVID-19. Currently, the receptor-binding domain (RBD) of the spike (S) protein is the main target of neutralizing antibodies when SARS-CoV-2 enters human cells through an interaction between the S protein and the angiotensin-converting enzyme 2 expressed on various human cells. A single monoclonal antibody (mAb) treatment is prone to selective pressure due to increased possibility of targeted epitope mutation, leading to viral escape. In addition, the antibody-dependent enhancement effect is a potential risk of enhancing the viral infection. These risks can be reduced using multiple mAbs that target nonoverlapping epitopes. Thus, a cocktail therapy combining two or more antibodies that recognize different regions of the viral surface may be the most effective therapeutic strategy.
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Affiliation(s)
- Rongtao Lai
- Department of Infectious Diseases, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Tianhui Zhou
- Department of Infectious Diseases, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Xiaogang Xiang
- Department of Infectious Diseases, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Jie Lu
- Department of Infectious Diseases, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Haiguang Xin
- Department of Infectious Diseases, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Qing Xie
- Department of Infectious Diseases, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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12
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Rong Y, Gao J, Kuang T, Chen J, Li JA, Huang Y, Xin H, Fang Y, Han X, Sun LQ, Deng YZ, Li Z, Lou W. DIAPH3 promotes pancreatic cancer progression by activating selenoprotein TrxR1-mediated antioxidant effects. J Cell Mol Med 2020; 25:2163-2175. [PMID: 33345387 PMCID: PMC7882936 DOI: 10.1111/jcmm.16196] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 11/15/2020] [Accepted: 11/19/2020] [Indexed: 02/06/2023] Open
Abstract
Pancreatic cancer is a highly malignant tumour of the digestive tract which is difficult to diagnose and treat. Approximately 90% of cases arise from ductal adenocarcinoma of the glandular epithelium. The morbidity and mortality of the disease have increased significantly in recent years. Its 5‐year survival rate is <1% and has one of the worst prognoses amongst malignant tumours. Pancreatic cancer has a low rate of early‐stage diagnosis, high surgical mortality and low cure rate. Selenium compounds produced by selenoamino acid metabolism may promote a large amount of oxidative stress and subsequent unfolded reactions and endoplasmic reticulum stress by consuming the NADPH in cells, and eventually lead to apoptosis, necrosis or necrotic cell death. In this study, we first identified DIAPH3 as a highly expressed protein in the tissues of patients with pancreatic cancer, and confirmed that DIAPH3 promoted the proliferation, anchorage‐independent growth and invasion of pancreatic cancer cells using overexpression and interference experiments. Secondly, bioinformatics data mining showed that the potential proteins interacted with DIAPH3 were involved in selenoamino acid metabolism regulation. Selenium may be incorporated into selenoprotein synthesis such as TrxR1 and GPX4, which direct reduction of hydroperoxides or resist ferroptosis, respectively. Our following validation confirmed that DIAPH3 promoted selenium content and interacted with the selenoprotein RPL6, a ribosome protein subunit involved in selenoamino acid metabolism. In addition, we verified that DIAPH3 could down‐regulate cellular ROS level via up‐regulating TrxR1 expression. Finally, nude mice xenograft model experimental results demonstrate DIAPH3 knock down could decrease tumour growth and TrxR1 expression and ROS levels in vivo. Collectively, our observations indicate DIAPH3 could promote pancreatic cancer progression by activating selenoprotein TrxR1‐mediated antioxidant effects.
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Affiliation(s)
- Yefei Rong
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jie Gao
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Tiantao Kuang
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jianlin Chen
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Jian-Ang Li
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yufeng Huang
- Department of Oncology, Jingjiang People's Hospital Affiliated to Yangzhou University, Jingjiang, China
| | - Haiguang Xin
- Department of Infectious Disease, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yuan Fang
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xu Han
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Lun-Quan Sun
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Yue-Zhen Deng
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Zhi Li
- Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Wenhui Lou
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
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13
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Zhang H, Cao X, Wang D, Xin H, Liu Z, Yan J, Feng B, Quan Z, Du Y, Liu J, Guan L, Shen F, Guan X, Jin Q, Pan S, Gao L. The acquisition of Mycobacterium tuberculosis infection in village doctors in China: a prospective study. Int J Tuberc Lung Dis 2020; 24:1241-1246. [PMID: 33317666 DOI: 10.5588/ijtld.20.0153] [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: 11/10/2022] Open
Abstract
BACKGROUND: Occupational exposure-related risk of Mycobacterium tuberculosis infection has been reported for village doctors in China. This prospective study aims to estimate the infection acquisition in this key population.METHODS: At baseline, all village doctors registered in Zhongmu County were tested by QuantiFERON®-TB Gold In-Tube (QFT) and QuantiFERON®-TB Gold Plus (QFT-Plus) in parallel. Those negatives for either of the tests were retested to identify conversions at the 2-year follow-up investigation.RESULTS: A total of 367 eligible participants completed the 2-year follow-up survey with frequency of conversion of 5.0% (18/361) for QFT and 6.1% (21/343) for QFT-Plus. The agreement of follow-up results between the tests was 93.2% with a κ coefficient of 0.43 (95%CI 0.20-0.65). Among QFT-Plus convertors, the difference between TB1 and TB2 tubes (TB2-TB1) was significantly increased as compared with baseline results (P = 0.039). Participants from the villages with occurrence of microbiologically confirmed pulmonary TB showed higher frequency of QFT conversions (11.0% vs. 3.2%, P = 0.011) and QFT-Plus conversions (12.3% vs. 4.4%, P = 0.027) than those from the villages without occurrence.CONCLUSION: Our results consistently suggest that capability on occupational protection and M. tuberculosis infection control should be improved in village doctors in China.
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Affiliation(s)
- H Zhang
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - X Cao
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - D Wang
- Center for Disease Prevention and Control of Zhongmu County, Zhengzhou
| | - H Xin
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Z Liu
- Center for Disease Prevention and Control of Zhongmu County, Zhengzhou
| | - J Yan
- Center for Disease Prevention and Control of Zhongmu County, Zhengzhou
| | - B Feng
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Z Quan
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Y Du
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - J Liu
- The Sixth People´s Hospital of Zhengzhou, Zhengzhou, China
| | - L Guan
- The Sixth People´s Hospital of Zhengzhou, Zhengzhou, China
| | - F Shen
- The Sixth People´s Hospital of Zhengzhou, Zhengzhou, China
| | - X Guan
- The Sixth People´s Hospital of Zhengzhou, Zhengzhou, China
| | - Q Jin
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - S Pan
- Center for Disease Prevention and Control of Zhongmu County, Zhengzhou
| | - L Gao
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
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14
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Li C, Xin H, Shi Y, Mu J. Knockdown of TRIM24 suppresses growth and induces apoptosis in acute myeloid leukemia through downregulation of Wnt/GSK-3β/β-catenin signaling. Hum Exp Toxicol 2020; 39:1725-1736. [PMID: 32672070 DOI: 10.1177/0960327120938845] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Tripartite motif-containing protein 24 (TRIM24) has currently emerged as a crucial cancer-related gene present in a wide range of human cancer types. However, the involvement of TRIM24 in acute myeloid leukemia (AML) has not been well investigated. The present study aims to investigate the significance, cellular function, and potential regulatory mechanism of TRIM24 in AML. We found that TRIM24 expression was significantly upregulated in AML compared with normal tissues. AML patients with low expression of TRIM24 had higher survival rates than those expressing TRIM24 at higher levels. High expression of TRIM24 was also detected in AML cells and its knockdown markedly restricted proliferation and promoted apoptosis in AML cells. Further investigation revealed that TRIM24 contributed to the regulation of Wnt/β-catenin signaling, which was associated with modulating the phosphorylation status of glycogen synthase kinase-3β (GSK-3β). Inactivation of GSK-3β partially reversed the TRIM24 knockdown-mediated antitumor effects observed in AML cells. Furthermore, knockdown of TRIM24 retarded the growth of AML-derived xenograft tumors in nude mice in vivo. Overall, these findings demonstrate that knockdown of TRIM24 impedes the AML tumor growth through the modulation of Wnt/GSK-3β/β-catenin signaling. These findings highlight the potential TRIM24 as an attractive anticancer target to treat AML.
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Affiliation(s)
- C Li
- Department of General Practice, 162798The First Affiliated Hospital of Xi'an Medical University, Xi'an, China.,Department of Cardiology, 162798The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - H Xin
- Department of Cardiology, 162798The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Y Shi
- Department of General Practice, 162798The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - J Mu
- Department of Cardiology, 162798The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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15
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Affiliation(s)
- H.-L. Zuo
- Department of Gynecology and Obstetrics, Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - H. Xin
- Department of Gynecology and Obstetrics, Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - X.-N. Yan
- Department of Ultrasonic Diagnosis and Treatment in Obstetrics and Gynecology, Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - J. Huang
- Department of Gynecology and Obstetrics, Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Y.-P. Zhang
- Department of Gynecology and Obstetrics, Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - H. Du
- Department of Gynecology and Obstetrics, Second Hospital of Hebei Medical University, Shijiazhuang, China
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16
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Xin H, Cao X, Zhang H, Liu J, Pan S, Li X, Guan L, Shen F, Liu Z, Wang D, Guan X, Yan J, Li H, Feng B, Zhang M, Yang Q, Jin Q, Gao L. Dynamic changes of interferon gamma release assay results with latent tuberculosis infection treatment. Clin Microbiol Infect 2020; 26:1555.e1-1555.e7. [PMID: 32062048 DOI: 10.1016/j.cmi.2020.02.009] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 02/02/2020] [Accepted: 02/08/2020] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Using QuantiFERON-TB Gold In-Tube (QFT-GIT) for monitoring tuberculosis (TB) and latent TB infection treatment effect is controversial. The present study aimed to evaluate the dynamic changes of interferon gamma (IFN-γ) levels along with latent TB infection treatment via a randomized controlled study. METHODS A total of 910 participants treated with 8 weeks of once-weekly rifapentine plus isoniazid (group A), 890 treated with 6 weeks of twice-weekly rifapentine plus isoniazid (group B) and 818 untreated controls (group C) were followed for 2 years to track active TB development. QFT-GIT tests were repeated three times for all groups: before treatment (T0), at completion of treatment (T1) and 3 months after completion of treatment (T2). RESULTS Similar rates of persistent QFT-GIT reversion were observed in groups A (19.0%, 173/910), B (18.5%, 165/890) and C (20.7%, 169/818) (p 0.512). The dynamic changes of IFN-γ levels were not statistically significant among the three groups. In treated participants, individuals with higher baseline IFN-γ levels showed increased TB occurrence (1.0%, 9/896) compared to those with lower baseline levels (0.2%, 2/904) (p 0.037). A similar but statistically insignificant trend was also observed in untreated controls (1.8% (7/400) vs. 0.5% (2/418), p 0.100). When TB cases were matched with non-TB cases on baseline IFN-γ levels, no significant differences were found with respect to the dynamic changes in IFN-γ levels with time, regardless of whether they received treatment. CONCLUSIONS QFT-GIT reversion or decreased IFN-γ levels should not be used for monitoring host response to latent TB infection treatment.
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Affiliation(s)
- H Xin
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - X Cao
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - H Zhang
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - J Liu
- The Sixth People's Hospital of Zhengzhou, PR China
| | - S Pan
- The Centers for Disease Prevention and Control of Zhongmu County, Zhengzhou, PR China
| | - X Li
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - L Guan
- The Sixth People's Hospital of Zhengzhou, PR China
| | - F Shen
- The Sixth People's Hospital of Zhengzhou, PR China
| | - Z Liu
- The Centers for Disease Prevention and Control of Zhongmu County, Zhengzhou, PR China
| | - D Wang
- The Centers for Disease Prevention and Control of Zhongmu County, Zhengzhou, PR China
| | - X Guan
- The Sixth People's Hospital of Zhengzhou, PR China
| | - J Yan
- The Centers for Disease Prevention and Control of Zhongmu County, Zhengzhou, PR China
| | - H Li
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - B Feng
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - M Zhang
- Guangdong Key Laboratory for Diagnosis &Treatment of Emerging Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen University School of Medicine, Shenzhen, PR China
| | - Q Yang
- Guangdong Key Laboratory for Diagnosis &Treatment of Emerging Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen University School of Medicine, Shenzhen, PR China
| | - Q Jin
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - L Gao
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology and Center for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China.
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17
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Zhao ZG, Wang HF, Wang YW, Li J, Li YX, Xin H, Liu JJ, Guan XM. The mechanisms of Ang II-induced hypertensive vascular remodeling under suppression of CD68 in macrophages. Eur Rev Med Pharmacol Sci 2019; 22:6093-6099. [PMID: 30280796 DOI: 10.26355/eurrev_201809_15948] [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 High blood pressure (hypertension) is one of the most common cardiovascular diseases. In recent years, there were more and more studies on the function of inflammation in hypertension. CD68 mainly mediates the activation of cytokine interleukin-17 (IL-17) signaling pathway and participates in inflammatory responses. It has been studied the function of CD68 and IL-17 in hypertension, but it has not been reported whether it affected hypertension and vascular remodeling when macrophage CD68 expression inhibited. In this study, antisense-CD68 mice were used to study the effect and mechanism of angiotensin II-induced hypertensive vascular remodeling under specific suppression of macrophage CD68. MATERIALS AND METHODS Fifty 8-week-old male antisense-CD681 and C57 mice were divided into control and experimental group (angiotensin II group, 1000 ng•kg-1•min-1). After infusion of angiotensin II for 28 days, hematoxylin-eosin (HE) staining and immunohistochemical staining were used to observe the remodel of vascular. The changes of aortic inflammatory factors were detected by Real-time PCR (RT-PCR) and Western blotting. RESULTS By specifically inhibiting the expression of macrophage CD68, macrophage infiltration was mitigated in Ang II-induced hypertensive vascular remodeling model mouse, which also down-regulated the expression of vascular tissue inflammatory factor and activation of vascular smooth muscle cell p65. CONCLUSIONS CD68 regulates the Ang II-induced hypertensive vascular remodeling through mediating macrophage inflammatory factor release.
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Affiliation(s)
- Z-G Zhao
- Department of Vascular Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China.
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18
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Zhang HJ, Dou RC, Lin L, Wang QY, Huang BE, Zhao XL, Chen DJ, Ding YL, Ding HJ, Cui SH, Zhang WS, Xin H, Gu WR, Hu YL, Ding GF, Qi HB, Fan L, Ma YY, Lu JL, Yang Y, Lin L, Luo XC, Zhang XH, Fan SR, Yang HX. [Risk factors and sonographic findings associated with the type of placenta accreta spectrum disorders]. Zhonghua Fu Chan Ke Za Zhi 2019; 54:27-32. [PMID: 30695903 DOI: 10.3760/cma.j.issn.0529-5675.2019.01.007] [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 risk factors and sonographic findings of pregnancies complicated by placenta increta or placenta percreta. Methods: Totally, 2 219 cases were retrospectively analyzed from 20 tertiary hospitals in China from January 2011 to December 2015. The data were collected based on the original case records. All cases were divided into two groups, the placenta increta (PI) group (79.1%, 1 755/2 219) and the placenta percreta (PP) group (20.9%, 464/2 219) , according to the degree of placental implantation. The risk factors and sonographic findings of placenta increta or percreta were analyzed by uni-factor and logistic regression statistic methods. Results: The risk factors associated with the degree of placental implantation were age, gravida, previous abortion or miscarriage, previous cesarean sections, and placenta previa (all P<0.05), especially, previous cesarean sections (χ(2)=157.961) and placenta previa (χ(2)=91.759). Sonographic findings could be used to predict the degree of placental invasion especially the boundaries between placenta and uterine serosa, the boundary between placenta and myometrium, the disruption of the placental-uterine wall interface and loss of the normal retroplacental hypoechoic zone(all P<0.01). Conclusions: Previous cesarean sections and placenta previa are the main independent risk factors associated with the degree of placenta implantation. Ultrasound could be used to make a prenatal suggestive diagnosis of placenta accreta spectrum disorders.
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Affiliation(s)
- H J Zhang
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - R C Dou
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - L Lin
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Q Y Wang
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - B E Huang
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - X L Zhao
- Department of Obstetrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - D J Chen
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
| | - Y L Ding
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital of Central South University, Changsha 410008, China
| | - H J Ding
- Department of Obstetrics and Gynecology, Nanjing Maternity and Child Health Hospital, the Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, Nanjing 210004, China
| | - S H Cui
- Department of Obstetrics, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W S Zhang
- Department of Obstetrics and Gynecology, Xiangya Hospital of Central South University, Changsha 410008, China
| | - H Xin
- Department of Obstetrics, The Second Affiliated Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - W R Gu
- Department of Obstetrics, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Y L Hu
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210093, China
| | - G F Ding
- Department of Obstetrics, Urumqi Maternity and Child Health Hospital, Urumqi 830001, China
| | - H B Qi
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400042, China
| | - L Fan
- Department of Obstetrics, Beijing Obstetrics and Gynecology Hospital of Capital Medical University, Beijing 100026, China
| | - Y Y Ma
- Department of Obstetrics and Gynecology, Qilu Hospital of Shangdong University, Ji'nan 266035, China
| | - J L Lu
- Department of Obstetrics and Gynecology, Beijing Chaoyang Hospital of Capital Medical University, Beijing 100043, China
| | - Y Yang
- Department of Obstetrics and Gynecology, Civil Aviation General Hospital of Peking University, Beijing 100025, China
| | - L Lin
- Department of Obstetrics and Gynecology, Beijing Friendship Hospital of Capital Medical University, Beijing 100050, China
| | - X C Luo
- Department of Obstetrics, Lianyungang Maternity and Child Health Hospital, Lianyungang 100142, China
| | - X H Zhang
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing 100044, China
| | - S R Fan
- Department of Obstetrics and Gynecology, Peking University Shenzhen Hospital, Shenzhen 518035, China
| | - H X Yang
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
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19
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Affiliation(s)
- Haiguang Xin
- Department of Infection Diseases, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Junxue Wang
- Department of Infection Diseases, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Zhiqin Wu
- Department of Infection Diseases, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Wu Ni
- Department of Infection Diseases, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
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20
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Affiliation(s)
- Zhiqing He
- Department of Cardiology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Ru Ding
- Department of Cardiology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Haiguang Xin
- Department of Infection Diseases, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Chun Liang
- Department of Cardiology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, China
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21
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Lian B, Xin H, Zhimin S. Abstract P4-03-07: Combined genome-scale CRISPR-Cas9 knockout screening with transcriptome sequencing to identify paclitaxel related drivers in triple negative breast cancer. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p4-03-07] [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. Triple negative breast cancer (TNBC) is an aggressive subtype of breast cancers, for which the only standard therapeutics is chemotherapy containing Taxol. However, quite a number of TNBC patients cannot get the expected drug response after paclitaxel treatment and the resistant mechanism has not been clear yet. Other than the traditional “genotype-to-phenotype” means, the high-throughput functional screening, such as CRISPR-CAS9 library, selects genes with the phenotype of interest. Here, we combine the novel screening model with the drug-resistant genotype to explore the decisive role in paclitaxel effect.
Methods. Breast cancer cell line MDA-MB-231(231WT) was treated by paclitaxel from 1ug/ml to 5ug/ml to establish a paclitaxel-resistant cell type (231PTX) for transcriptome sequencing. Genome-scale CRISPR-Cas9 sgRNA library was made into lentivirus to affect MDA-MB-231 cells expressed Cas9 protein (231cas9). Then 231cas9-sgRNA was treated by low dose of paclitaxel for 14 days and was read by next generation sequencing. RNA sequencing data was processed to TPM values and sgRNA data to gene ranking and p value. The threshold of “231PTX TPM/231WT TPM” was above 2 or below 1/2 and the gene p value was smaller than 0.05. Biological technology applied in this study includes western blot (WB), immunofluorescence (IF), real time PCR and cell proliferation assay. In vivo, 20 balb/c mouse were injected MDA-MB-231 in situ for tumor formation and were treated with paclitaxel/normal saline for six times.
Results. Crosstalk between these two sequencing data had result of 124 genes related to paclitaxel resistance (fold change> 2 and p value<0.05 compared Day 14 treated group to Day 14 untreated group) and 18 genes related to paclitaxel sensitivity (fold change< 1/2 and p value<0.05 compared Day 14 untreated group to Day 14 treated group). Considering clinical prognosis and gene information, six paclitaxel resistant candidates and four paclitaxel sensitive candidates were chosen for further research. Eight (STRA6, BIRC3, MTUS1, HDAC9, ADAM28, S1PR5, TNNC1, ZKSCAN7) of ten candidates displayed consistent phenotypes with sequencing results including mRNA expression and the cellular proliferation in paclitaxel treatment. HDAC9 is a histone deacetylation gene that is likely to be a paclitaxel resistant gene. Knockout HDAC9 (231H9 KO) contributed to nearly 2-fold decrease IC50 value (1.7nM versus 3.7nM, p value<0.01). Confocal microscopy observed the formation of multiple spindle foci in the paclitaxel treated 231H9 KO cells. After treatment with paclitaxel, the mark of polymerized tubulin, acetylation tubulin and the mark of cell cycle G2/M, cyclin B1 were notably increased when HDAC9 knockout in both MD-MB1-231 and BT-100 cell lines. In vivo assays found that HDAC9 knockout induced the declined tumorigenesis and more sensitive breast tumors to paclitaxel.
Conclusions.Combined Genome-scale CRISPR-Cas9 knockout screening with transcriptome sequencing is efficient to investigate potent drug targets. In vitro assays suggest that HDAC9 is conductive to paclitaxel resistance in TNBC cells. In vivo results imply inhibition HDAC9 may beneficial to paclitaxel therapeutic response.
Citation Format: Lian B, Xin H, Zhimin S. Combined genome-scale CRISPR-Cas9 knockout screening with transcriptome sequencing to identify paclitaxel related drivers in triple negative breast cancer [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P4-03-07.
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Affiliation(s)
- B Lian
- Fudan University Shanghai Cancer Center, China; Shanghai Medical College, Fudan University, China
| | - H Xin
- Fudan University Shanghai Cancer Center, China; Shanghai Medical College, Fudan University, China
| | - S Zhimin
- Fudan University Shanghai Cancer Center, China; Shanghai Medical College, Fudan University, China
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Cheng Y, Wang Y, Zhao J, Liu Y, Gao H, Ma K, Zhang S, Xin H, Liu J, Han C, Zhu Z, Wang Y, Chen J, Wen F, Li J, Zhang J, Zheng Z, Dai Z, Piao H, Li X, Li Y, Zhong M, Ma R, Zhuang Y, Xu Y, Qu Z, Yang H, Pan C, Yang F, Zhang D, Li B. P3.01-021 A Multicenter, Non-Interventional Study on Real World EGFR Testing and in Patients with IIIB/IV NSCLC in Northern China. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1462] [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]
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Cheng Y, Wang Y, Zhao J, Liu Y, Gao H, Ma K, Zhang S, Xin H, Liu J, Chengbo H, Zhu Z, Wang Y, Chen J, Wen F, Li J, Jie Z, Zheng Z, Dai Z, Piao H, Li X, Li Y, Zhong M, Ma R, Zhuang Y, Xu Y, Qu Z, Yang H, Pan C, Yang F, Zhang D, Li B. JCES 01.11 A Multicenter, Non-Interventional Study on Real World EGFR Testing and in Patients with IIIB/IV NSCLC in Northern China. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.300] [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: 11/24/2022]
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LaRue J, Krejčí O, Yu L, Beye M, Ng ML, Öberg H, Xin H, Mercurio G, Moeller S, Turner JJ, Nordlund D, Coffee R, Minitti MP, Wurth W, Pettersson LGM, Öström H, Nilsson A, Abild-Pedersen F, Ogasawara H. Real-Time Elucidation of Catalytic Pathways in CO Hydrogenation on Ru. J Phys Chem Lett 2017; 8:3820-3825. [PMID: 28759996 DOI: 10.1021/acs.jpclett.7b01549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The direct elucidation of the reaction pathways in heterogeneous catalysis has been challenging due to the short-lived nature of reaction intermediates. Here, we directly measured on ultrafast time scales the initial hydrogenation steps of adsorbed CO on a Ru catalyst surface, which is known as the bottleneck reaction in syngas and CO2 reforming processes. We initiated the hydrogenation of CO with an ultrafast laser temperature jump and probed transient changes in the electronic structure using real-time X-ray spectroscopy. In combination with theoretical simulations, we verified the formation of CHO during CO hydrogenation.
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Affiliation(s)
- J LaRue
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory , 2575 Sand Hill Road, Menlo Park, California 94025, United States
- Department of Physics, AlbaNova University Center, Stockholm University , SE-10691 Stockholm, Sweden
- Schmid College of Science and Technology, Chapman University , One University Drive, Orange, California 92866, United States
- Fritz-Haber Institute of the Max-Planck-Society , Faradayweg 4-6, D-14195 Berlin, Germany
| | - O Krejčí
- Department of Physics, AlbaNova University Center, Stockholm University , SE-10691 Stockholm, Sweden
- Faculty of Mathematics and Physics, Department of Surface and Plasma Science, Charles University in Prague , V Holešovičkách 2, 180 00, Prague, Czech Republic
- Institute of Physics of the Czech Academy of Sciences , Cukrovarnická 10, 162 53, Prague, Czech Republic
| | - L Yu
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University , Stanford, California 95305, United States
| | - M Beye
- Helmholtz Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - M L Ng
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory , 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - H Öberg
- Department of Physics, AlbaNova University Center, Stockholm University , SE-10691 Stockholm, Sweden
| | - H Xin
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University , Stanford, California 95305, United States
| | - G Mercurio
- University of Hamburg and Center for Free Electron Laser Science , Luruper Chausse 149, D-22761 Hamburg, Germany
| | - S Moeller
- Linac Coherent Light Source, SLAC National Accelerator Laboratory , 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - J J Turner
- Linac Coherent Light Source, SLAC National Accelerator Laboratory , 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - D Nordlund
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory , 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - R Coffee
- Linac Coherent Light Source, SLAC National Accelerator Laboratory , 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - M P Minitti
- Linac Coherent Light Source, SLAC National Accelerator Laboratory , 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - W Wurth
- University of Hamburg and Center for Free Electron Laser Science , Luruper Chausse 149, D-22761 Hamburg, Germany
- DESY Photon Science , Notkestrasse 85, 22607 Hamburg, Germany
| | - L G M Pettersson
- Department of Physics, AlbaNova University Center, Stockholm University , SE-10691 Stockholm, Sweden
| | - H Öström
- Department of Physics, AlbaNova University Center, Stockholm University , SE-10691 Stockholm, Sweden
| | - A Nilsson
- Department of Physics, AlbaNova University Center, Stockholm University , SE-10691 Stockholm, Sweden
| | - F Abild-Pedersen
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory , 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - H Ogasawara
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory , 2575 Sand Hill Road, Menlo Park, California 94025, United States
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Xin H, Espinosa M, Yu P. 570 Characterization of nutritional values, ruminal and total digestibility of nutrients and predicted metabolizable protein supply to dairy cows: Comparison of tannin and non-tannin faba bean. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.570] [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
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26
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Xu Y, Xin H, Wu Y, Guan R, Lei H, Fu X, Xin Z, Yang Y. Effect of icariin in combination with daily sildenafil on penile atrophy and erectile dysfunction in a rat model of bilateral cavernous nerves injury. Andrology 2017; 5:598-605. [PMID: 28296277 DOI: 10.1111/andr.12341] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 12/19/2016] [Accepted: 01/24/2017] [Indexed: 12/25/2022]
Affiliation(s)
- Y. Xu
- Wound Healing and Cell Biology Laboratory; Institute of Basic Medical Science; Chinese PLA General Hospital; Beijing China
| | - H. Xin
- Department of Ophthalmology; Beijing ChaoYang Hospital; Capital Medical University; Beijing China
| | - Y. Wu
- Department of Urology; First Hospital Affiliated to Chinese PLA General Hospital; Beijing China
| | - R. Guan
- Andrology Center; Peking University First Hospital; Peking University; Beijing China
| | - H. Lei
- Andrology Center; Peking University First Hospital; Peking University; Beijing China
| | - X. Fu
- Wound Healing and Cell Biology Laboratory; Institute of Basic Medical Science; Chinese PLA General Hospital; Beijing China
| | - Z. Xin
- Andrology Center; Peking University First Hospital; Peking University; Beijing China
| | - Y. Yang
- Department of Urology; First Hospital Affiliated to Chinese PLA General Hospital; Beijing China
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Zhang Y, Liu K, Hao X, Xin H. The relationships between odd- and branched-chain fatty acids to ruminal fermentation parameters and bacterial populations with different dietary ratios of forage and concentrate. J Anim Physiol Anim Nutr (Berl) 2016; 101:1103-1114. [PMID: 27862409 DOI: 10.1111/jpn.12602] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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: 07/27/2015] [Accepted: 08/27/2016] [Indexed: 11/30/2022]
Abstract
The objectives of this study were to investigate the effect of different dietary ratios of forage and concentrate (F:C) on ruminal odd- and branched-chain fatty acids (OBCFAs) contents and to evaluate the relationships between OBCFA and ruminal fermentation parameters as well as bacterial populations tested by real-time PCR technique. The experimental design was a 3 × 3 Latin square. Three rumen-fistulated dry Holstein cows were fed three rations with different dietary F:C ratios (F:C; 30:70, 50:50 and 70:30). The rumen samples were collected every two hours (0600, 0800, 1000, 1200, 1400, 1600, 1800, 2000, 2200, 2400, 0200 and 0400 h) over three consecutive days in each sampling period. The results showed that rumen OBCFA profiles are significantly (p < 0.05) affected by the dietary F:C ratios. The concentrations of C11:0, C13:0, iso-C15:0, iso-C16:0, iso-C17:0 and C17:0 were higher in the cows fed dietary F:C ratio of 70:30 than those fed with other two rations. However, the concentrations of anteiso-C15:0, C15:0 and total OBCFA were on the lowest level in the high forage diet. Correlation and regression analysis showed that ruminal OBCFAs had strong relationships with ruminal fermentation parameters and bacterial populations. In particular, the iso-fatty acids had potential power to predict butyrate and isoacids metabolized in the rumen, whereas the fatty acids with 17 carbon atoms correlated with ruminal NH3 -N content. The OBCFA contents have different relationships with fibrolytic and starch bacteria in the rumen. C17:0 and its isomers might be used to predict populations of fibrolytic bacteria.
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Affiliation(s)
- Y Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - K Liu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - X Hao
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - H Xin
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang, China
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Roberts S, Xin H, Swestka R, Yum M, Bregendahl K. Spatial variation of manure nutrients and manure sampling strategy in high-rise laying-hen houses. J APPL POULTRY RES 2016. [DOI: 10.3382/japr/pfw013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Hang X, Zhu S, Di H, Wu Z, Chu K, Wang J, Xin H, Yu G, Peng H, Miao X, Xu W. NEDD4 Depletion Inhibits Hepatocellular Carcinoma Growth via Targeting PTEN. Cell Physiol Biochem 2016; 39:768-79. [PMID: 27467187 DOI: 10.1159/000445667] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/23/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Neural precursor cell-expressed developmentally down-regulated gene 4 (NEDD4) plays an important role in tumor cell growth, yet its role in hepatocellular carcinoma (HCC) remains unclear. This study is to establish NEDD4 as a prognostic biomarker by which the survival of HCC patients can be predicted and to reveal the role of NEDD4 in hepatocellular carcinoma cell growth. METHODS The expression of NEDD4 in 219 HCC specimens was assessed by immunohistochemistry. Postoperative overall survival and time to recurrence were evaluated by univariate and multivariate analyses. The roles of NEDD4 in hepatocellular carcinoma cell proliferation and invasion were determined. RESULTS The patients with low NEDD4 expression tumors had an average cumulative survival of 64.9 ± 6.5 months during follow-up while the patients with high NEDD4 expression tumors had an average cumulative survival of 20.3 ± 15.8 months. NEDD4 silencing inhibited Huh7 cell proliferation and altered cell cytoskeletal assembly, and NEDD4 depletion furthermore seemed to suppress cell migration and invasion. A possible molecular mechanism for the observed effects might be that NEDD4 silence led to an increase in PTEN (phosphatase and tensin homologue) expression, which in turn resulted in the inactivation of STAT3, AKT, and ERK1/2. CONCLUSION Our findings indicate that NEDD4 may participate in the HCC progression and may therefore be a potential target for HCC therapy.
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Affiliation(s)
- Xiaofeng Hang
- Department of Infection Diseases, Changzheng Hospital, Second Military Medical University, Shanghai, PR China
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Zhao Y, Zhao D, Ma H, Liu K, Atilgan A, Xin H. Environmental assessment of three egg production systems – Part III: Airborne bacteria concentrations and emissions. Poult Sci 2016; 95:1473-1481. [DOI: 10.3382/ps/pew053] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 01/03/2016] [Indexed: 11/20/2022] Open
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31
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KC L, Johnson AK, Shepherd TA, Stinn JP, Xin H, Stalder KJ, Karriker LA, Sutherland MA, Lay DC, Millman ST. 020 Aversion to carbon dioxide gas in pigs using approach–avoidance and conditioned place avoidance paradigms. J Anim Sci 2016. [DOI: 10.2527/msasas2016-020] [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
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32
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Long H, Zhao Y, Xin H, Hansen H, Ning Z, Wang T. Effect of light-emitting diode (LED) vs. fluorescent (FL) lighting on laying hens in aviary hen houses: Part 2 - Egg quality, shelf-life and lipid composition. Poult Sci 2015; 95:115-24. [PMID: 26574027 DOI: 10.3382/ps/pev306] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2015] [Indexed: 11/20/2022] Open
Abstract
In this 60-wk study, egg quality, egg shelf-life, egg cholesterol content, total yolk lipids, and yolk fatty acid composition of eggs produced by Dekalb white laying hens in commercial aviary houses with either light-emitting diode (LED) or fluorescent (FL) lighting were compared. All parameters were measured at 27, 40, and 60 wk of age, except for egg shelf-life, which was compared at 50 wk of age. The results showed that, compared to the FL regimen, the LED regimen resulted in higher egg weight, albumen height, and albumen weight at 27 wk of age, thicker shells at 40 wk of age, but lower egg weight at 60 wk of age. Egg quality change was similar between the lighting regimens during the 62-d egg storage study, indicating that LED lighting did not influence egg shelf-life. Eggs from both lighting regimens had similar cholesterol content. However, cholesterol concentration of the yolk (15.9 to 21.0 mg cholesterol/g wet weight yolk) observed in this study was higher than that of United States Department of Agriculture (USDA) database (10.85 mg/g). No significant differences in total lipids or fatty acid composition of the yolks were detected between the two lighting regimens.
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Affiliation(s)
- H Long
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Y Zhao
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA
| | - H Xin
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA
| | - H Hansen
- Department of Food Science and Human Nutrition, Iowa State University, Ames, IA 50011, USA
| | - Z Ning
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - T Wang
- Department of Food Science and Human Nutrition, Iowa State University, Ames, IA 50011, USA
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Shepherd TA, Zhao Y, Li H, Stinn JP, Hayes MD, Xin H. Environmental assessment of three egg production systems--Part II. Ammonia, greenhouse gas, and particulate matter emissions. Poult Sci 2015; 94:534-43. [PMID: 25737568 PMCID: PMC4990889 DOI: 10.3382/ps/peu075] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
As an integral part of the Coalition for Sustainable Egg Supply (CSES) Project, this study simultaneously monitored air emissions of 3 commercially operated egg production systems at the house level and associated manure storage over 2 single-cycle flocks (18 to 78 wk of age). The 3 housing systems were 1) a conventional cage house (CC) with a 200,000-hen capacity (6 hens in a cage at a stocking density of 516 cm2/hen), 2) an enriched colony house (EC) with a 50,000-hen capacity (60 hens per colony at a stocking density of 752 cm2/hen), and 3) an aviary house (AV) with a 50,000-hen capacity (at a stocking density of 1253 to 1257 cm2/hen). The 3 hen houses were located on the same farm and were populated with Lohmann white hens of the same age. Indoor environment and house-level gaseous (ammonia [NH3] and greenhouse gasses [GHG], including carbon dioxide [CO2], methane [CH4], and nitrous oxide [N2O]) and particulate matter (PM10, PM2.5) emissions were monitored continually. Gaseous emissions from the respective manure storage of each housing system were also monitored. Emission rates (ERs) are expressed as emission quantities per hen, per animal unit (AU, 500 kg live BW), and per kilogram of egg output. House-level NH3 ER (g/hen/d) of EC (0.054) was significantly lower than that of CC (0.082) or AV (0.112) (P < 0.05). The house-level CO2 ER (g/hen/d) was lower for CC (68.3) than for EC and AV (74.4 and 74.0, respectively), and the CH4 ER (g/hen/d) was similar for all 3 houses (0.07 to 0.08). The house-level PM ER (mg/hen/d), essentially representing the farm-level PM ER, was significantly higher for AV (PM10 100.3 and PM2.5 8.8) than for CC (PM10 15.7 and PM2.5 0.9) or EC (PM10 15.6 and PM2.5 1.7) (P < 0.05). The farm-level (house plus manure storage) NH3 ER (g/hen/d) was significantly lower for EC (0.16) than for CC (0.29) or AV (0.30) (P < 0.05). As expected, the magnitudes of GHG emissions were rather small for all 3 production systems. Data from this study enable comparative assessment of conventional vs. alternative hen housing systems regarding air emissions and enhance the U.S. national air emissions inventory for farm animal operations.
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Affiliation(s)
- T A Shepherd
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames
| | - Y Zhao
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames
| | - H Li
- Department of Animal and Food Sciences, University of Delaware, Newark
| | - J P Stinn
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames
| | - M D Hayes
- Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign
| | - H Xin
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames
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Zhao Y, Shepherd TA, Swanson JC, Mench JA, Karcher DM, Xin H. Comparative evaluation of three egg production systems: Housing characteristics and management practices. Poult Sci 2015; 94:475-84. [PMID: 25737566 PMCID: PMC4990892 DOI: 10.3382/ps/peu077] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
This paper is an integral part of the special publication series that arose from the multidisciplinary and multi-institutional project of the Coalition for Sustainable Egg Supply (CSES). The CSES project involves 3 housing systems for egg production at the same research farm site in the Midwest, USA, namely, a conventional cage (CC) house, an aviary (AV) house, and an enriched colony (EC) house. The CC house (141.4 m L × 26.6 m W × 6.1 m H) had a nominal capacity of 200,000 hens (6 hens in a cage at a stocking density of 516 cm2/hen), and the cages were arranged in 10 rows, 8 tiers per cage row, with a perforated aisle walkway at 4-tier height. The AV house (154.2 m L × 21.3 m W × 3.0 m H) and the EC house (154.2 m L × 13.7 m W × 4.0 m H) each had a nominal capacity of 50,000 hens. The AV house had 6 rows of aviary colonies, and the EC house had 5 rows of 4-tier enriched colonies containing perches, nestbox, and scratch pads (60 hens per colony at a stocking density of 752 cm2/hen). The overarching goal of the CSES project, as stated in the opening article of this series, was to comprehensively evaluate the 3 egg production systems from the standpoints of animal behavior and well-being, environmental impact, egg safety and quality, food affordability, and worker health. So that all the area-specific papers would not have to repeat a detailed description of the production systems and the management practices, this paper is written to provide such a description and to be used as a common reference for the companion papers.
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Affiliation(s)
- Y Zhao
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA, USA
| | - T A Shepherd
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA, USA
| | - J C Swanson
- Department of Animal Science, Michigan State University, East Lansing, MI, USA
| | - J A Mench
- Department of Animal Science, University of California, Davis, CA, USA
| | - D M Karcher
- Department of Animal Science, Michigan State University, East Lansing, MI, USA
| | - H Xin
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA, USA
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Yin J, Wang J, Pu R, Xin H, Li Z, Han X, Ding Y, Du Y, Liu W, Deng Y, Ji X, Wu M, Yu M, Zhang H, Wang H, Thompson TC, Ni W, Cao G. Hepatitis B Virus Combo Mutations Improve the Prediction and Active Prophylaxis of Hepatocellular Carcinoma: A Clinic-Based Cohort Study. Cancer Prev Res (Phila) 2015; 8:978-88. [PMID: 26290395 DOI: 10.1158/1940-6207.capr-15-0160] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Accepted: 07/31/2015] [Indexed: 12/21/2022]
Abstract
We aimed to evaluate whether hepatitis B virus (HBV) mutations at the core promoter region could improve the prediction and specific prophylaxis of hepatocellular carcinoma (HCC) in chronic HBV-infected patients. A total of 2,114 HBV-infected patients enrolled between August 1998 and December 2007 were followed-up for 18,406 person-years. Of those, 612 received ≥48 week treatments with nucleos(t)ide analogue (NA) and/or IFNα. Baseline HBV mutations were identified by sequencing. Propensity score matching was applied to reduce baseline differences between antiviral and control cohorts. Multivariate Cox regression analyses, including baseline characteristics of 2,114 patients, showed that age, male, cirrhosis, and HBV mutations (C1653T, T1753V, and A1762T/G1764A) independently increased HCC risk. In control patients carrying A1762T/G1764A, addition of C1653T and/or T1753V significantly increased HCC risk (HR, 1.57; P = 0.038); combo mutations with C1653T, T1753V, and A1762T/G1764A improved the validity of HCC prediction by age, male, and cirrhosis (P = 0.002). In the matched cohorts, antiviral treatment reduced HCC incidence (13.90/1,000 vs. 7.70/1,000 person-years, P = 0.005); NA treatment for ≥60 months was required for the prophylaxis of HCC in cirrhotic patients (P = 0.03); antiviral treatment reduced HCC risk in patients carrying A1762T/G1764A (HR, 0.40; P = 0.002) or C1653T (HR, 0.45; P = 0.04) and in those without T1753V (HR, 0.42; P = 0.005), but could not reduce HCC risk in patients without A1762T/G1764A or C1653T and in those with T1753V. In summary, HBV mutation A1762T/G1764A, C1653T, and T1753V in combination improve HCC prediction in HBV-infected patients. To prevent HCC, patients infected with HBV carrying A1762T/G1764A or C1653T, but not T1753V, should be given priority of receiving antiviral treatments.
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Affiliation(s)
- Jianhua Yin
- Department of Epidemiology, Second Military Medical University, Shanghai, China
| | - Junxue Wang
- Department of Infectious Diseases, The 2nd Affiliated Hospital, Second Military Medical University, Shanghai, China
| | - Rui Pu
- Department of Epidemiology, Second Military Medical University, Shanghai, China
| | - Haiguang Xin
- Department of Infectious Diseases, The 2nd Affiliated Hospital, Second Military Medical University, Shanghai, China
| | - Zixiong Li
- Department of Epidemiology, Second Military Medical University, Shanghai, China
| | - Xue Han
- Division of Chronic Diseases, Center for Disease Control and Prevention of Yangpu District, Shanghai, China
| | - Yibo Ding
- Department of Epidemiology, Second Military Medical University, Shanghai, China
| | - Yan Du
- Department of Epidemiology, Second Military Medical University, Shanghai, China
| | - Wenbin Liu
- Department of Epidemiology, Second Military Medical University, Shanghai, China
| | - Yang Deng
- Department of Epidemiology, Second Military Medical University, Shanghai, China
| | - Xiaowei Ji
- Department of Epidemiology, Second Military Medical University, Shanghai, China
| | - Ming Wu
- Division of Chronic Diseases, Provincial Center for Disease Control and Prevention of Jiangsu, Nanjing, China
| | - Min Yu
- Division of Chronic Diseases, Provincial Center for Disease Control and Prevention of Zhejiang, Hangzhou, China
| | - Hongwei Zhang
- Department of Epidemiology, Second Military Medical University, Shanghai, China
| | - Hongyang Wang
- International Cooperation Laboratory on Signal Transduction, The 3rd Affiliated Hospital, Second Military Medical University, Shanghai, China
| | - Timothy C Thompson
- Department of Genitourinary Medical Oncology-Research, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Wu Ni
- Department of Infectious Diseases, The 2nd Affiliated Hospital, Second Military Medical University, Shanghai, China
| | - Guangwen Cao
- Department of Epidemiology, Second Military Medical University, Shanghai, China.
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Long H, Zhao Y, Wang T, Ning Z, Xin H. Effect of light-emitting diode vs. fluorescent lighting on laying hens in aviary hen houses: Part 1 - Operational characteristics of lights and production traits of hens. Poult Sci 2015; 95:1-11. [PMID: 26009753 DOI: 10.3382/ps/pev121] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2015] [Indexed: 11/20/2022] Open
Abstract
Light-emitting diode (LED) lights are becoming more affordable for agricultural applications. Despite many lab-scale studies concerning impact of LED on poultry, little research has been documented under field production conditions, especially for laying hens. This 15-month field study was carried out to evaluate the effects of LED vs. fluorescent (FL) lights on laying hens (Dekalb white breed) using 4 (2 pairs) aviary hen houses each at a nominal capacity of 50,000 hens. The evaluation was done regarding operational characteristics of the lights and hen production traits. The results show that spatial distribution of the LED light was less uniform than that of the FL light. Light intensity of the LED light decreased by 27% after 3,360 h use but remained quite steady from 3,360 to 5,760 h use. Eleven out of 762 (1.44%) LED lamps (new at onset of the study) in the 2 houses failed during the 15-month experiment period. The neck area of the LED lamp was hottest, presumably the primary reason for the lamp failure as cracks were noticed in the neck region of all failed LED lamps. No differences were observed in egg weight, hen-day egg production, feed use, and mortality rate between LED and FL regimens. However, hens under the FL had higher eggs per hen housed and better feed conversion than those under the LED during 20 to 70 wk production (P < 0.05). Hens under the LED tended to have less feather uniformity and insulation than those under the FL (P < 0.05). Moreover, hens under the LED showed a larger median avoidance distance than those under the FL at 36 wk age (P < 0.05), indicating that hens under the LED were more alert; but no difference at 60 wk age. More comparative research to quantify behavioral and production responses of different breeds of hens to LED vs. FL lighting seems warranted.
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Affiliation(s)
- H Long
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011 College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Y Zhao
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011
| | - T Wang
- Department of Food Science and Human Nutrition, Iowa State University, Ames, IA 50011
| | - Z Ning
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - H Xin
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011
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Xin H, LaRue J, Öberg H, Beye M, Dell'Angela M, Turner JJ, Gladh J, Ng ML, Sellberg JA, Kaya S, Mercurio G, Hieke F, Nordlund D, Schlotter WF, Dakovski GL, Minitti MP, Föhlisch A, Wolf M, Wurth W, Ogasawara H, Nørskov JK, Öström H, Pettersson LGM, Nilsson A, Abild-Pedersen F. Strong Influence of Coadsorbate Interaction on CO Desorption Dynamics on Ru(0001) Probed by Ultrafast X-Ray Spectroscopy and Ab Initio Simulations. Phys Rev Lett 2015; 114:156101. [PMID: 25933322 DOI: 10.1103/physrevlett.114.156101] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Indexed: 06/04/2023]
Abstract
We show that coadsorbed oxygen atoms have a dramatic influence on the CO desorption dynamics from Ru(0001). In contrast to the precursor-mediated desorption mechanism on Ru(0001), the presence of surface oxygen modifies the electronic structure of Ru atoms such that CO desorption occurs predominantly via the direct pathway. This phenomenon is directly observed in an ultrafast pump-probe experiment using a soft x-ray free-electron laser to monitor the dynamic evolution of the valence electronic structure of the surface species. This is supported with the potential of mean force along the CO desorption path obtained from density-functional theory calculations. Charge density distribution and frozen-orbital analysis suggest that the oxygen-induced reduction of the Pauli repulsion, and consequent increase of the dative interaction between the CO 5σ and the charged Ru atom, is the electronic origin of the distinct desorption dynamics. Ab initio molecular dynamics simulations of CO desorption from Ru(0001) and oxygen-coadsorbed Ru(0001) provide further insights into the surface bond-breaking process.
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Affiliation(s)
- H Xin
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, California 95305, USA
| | - J LaRue
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - H Öberg
- Department of Physics, AlbaNova University Center, Stockholm University, SE-10691 Stockholm, Sweden
| | - M Beye
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
- Helmholtz Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - M Dell'Angela
- University of Hamburg and Center for Free Electron Laser Science, Luruper Chausse 149, D-22761 Hamburg, Germany
| | - J J Turner
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - J Gladh
- Department of Physics, AlbaNova University Center, Stockholm University, SE-10691 Stockholm, Sweden
| | - M L Ng
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - J A Sellberg
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
- Department of Physics, AlbaNova University Center, Stockholm University, SE-10691 Stockholm, Sweden
| | - S Kaya
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - G Mercurio
- University of Hamburg and Center for Free Electron Laser Science, Luruper Chausse 149, D-22761 Hamburg, Germany
| | - F Hieke
- University of Hamburg and Center for Free Electron Laser Science, Luruper Chausse 149, D-22761 Hamburg, Germany
| | - D Nordlund
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - W F Schlotter
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - G L Dakovski
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - M P Minitti
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - A Föhlisch
- Helmholtz Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
- Fakultät für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Strasse 24-25, 14476 Potsdam, Germany
| | - M Wolf
- Fritz-Haber Institute of the Max-Planck-Society, Faradayweg 4-6, D-14195 Berlin, Germany
| | - W Wurth
- University of Hamburg and Center for Free Electron Laser Science, Luruper Chausse 149, D-22761 Hamburg, Germany
- DESY Photon Science, Notkestrasse 85, 22607 Hamburg, Germany
| | - H Ogasawara
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - J K Nørskov
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, California 95305, USA
| | - H Öström
- Department of Physics, AlbaNova University Center, Stockholm University, SE-10691 Stockholm, Sweden
| | - L G M Pettersson
- Department of Physics, AlbaNova University Center, Stockholm University, SE-10691 Stockholm, Sweden
| | - A Nilsson
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
- Department of Physics, AlbaNova University Center, Stockholm University, SE-10691 Stockholm, Sweden
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - F Abild-Pedersen
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
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Zhao Y, Shepherd TA, Li H, Xin H. Environmental assessment of three egg production systems--Part I: Monitoring system and indoor air quality. Poult Sci 2015; 94:518-33. [PMID: 25737567 PMCID: PMC4990888 DOI: 10.3382/ps/peu076] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 04/22/2014] [Accepted: 11/10/2014] [Indexed: 11/27/2022] Open
Abstract
To comprehensively assess conventional vs. some alternative laying-hen housing systems under U.S. production conditions, a multi-institute and multi-disciplinary project, known as the Coalition for Sustainable Egg Supply (CSES) study, was carried out at a commercial egg production farm in the Midwestern United States over two single-cycle production flocks. The housing systems studied include a conventional cage house (200,000 hen capacity), an aviary house (50,000 hen capacity), and an enriched colony house (50,000 hen capacity). As an integral part of the CSES project, continual environmental monitoring over a 27-month period described in this paper quantifies indoor gaseous and particulate matter concentrations, thermal environment, and building ventilation rate of each house. Results showed that similar indoor thermal environments in all three houses were maintained through ventilation management and environmental control. Gaseous and particulate matter concentrations of the enriched colony house were comparable with those of the conventional cage house. In comparison, the aviary house had poorer indoor air quality, especially in wintertime, resulting from the presence of floor litter (higher ammonia levels) and hens' activities (higher particulate matter levels) in it. Specifically, daily mean indoor ammonia concentrations had the 95% confidence interval values of 3.8 to 4.2 (overall mean of 4.0) ppm for the conventional cage house; 6.2 to 7.2 (overall mean of 6.7) ppm for the aviary house; and 2.7 to 3.0 (overall mean of 2.8) ppm for the enriched colony house. The 95% confidence interval (overall mean) values of daily mean indoor carbon dioxide concentrations were 1997 to 2170 (2083) ppm for the conventional cage house, 2367 to 2582 (2475) ppm for the aviary house, and 2124 to 2309 (2216) ppm for the enriched colony house. Daily mean indoor methane concentrations were similar for all three houses, with 95% confidence interval values of 11.1 to 11.9 (overall mean of 11.5) ppm. The 95% confidence interval values (overall mean) of daily mean PM10 and PM2.5 concentrations, in mg/m3, were, respectively, 0.57 to 0.61 (0.59) and 0.033 to 0.037 (0.035) for the conventional cage house, 3.61 to 4.29 (3.95) and 0.374 to 0.446 (0.410) for the aviary house, and 0.42 to 0.46 (0.44) and 0.054 to 0.059 (0.056) for the enriched colony house. Investigation of mitigation practices to improve indoor air quality of the litter-floor aviary housing system is warranted.
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Affiliation(s)
- Y Zhao
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames
| | - T A Shepherd
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames
| | - H Li
- Department of Animal and Food Sciences, University of Delaware, Newark
| | - H Xin
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames
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Öström H, Öberg H, Xin H, LaRue J, Beye M, Dell’Angela M, Gladh J, Ng ML, Sellberg JA, Kaya S, Mercurio G, Nordlund D, Hantschmann M, Hieke F, Kühn D, Schlotter WF, Dakovski GL, Turner JJ, Minitti MP, Mitra A, Moeller SP, Föhlisch A, Wolf M, Wurth W, Persson M, Nørskov JK, Abild-Pedersen F, Ogasawara H, Pettersson LGM, Nilsson A. Probing the transition state region in catalytic CO oxidation on Ru. Science 2015; 347:978-82. [DOI: 10.1126/science.1261747] [Citation(s) in RCA: 152] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Anqi X, Zhenlin L, Xin H, Chao Y. Suggestive value of predilection site and imaging features of pediatric brainstem ganglioglioma including a case report. Neurochirurgie 2015; 61:50-3. [PMID: 25665772 DOI: 10.1016/j.neuchi.2014.11.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 05/13/2014] [Revised: 10/16/2014] [Accepted: 11/02/2014] [Indexed: 02/05/2023]
Abstract
Brainstem ganglioglioma is rarely reported. Due to its low incidence and atypical site, a brainstem ganglioglioma could easily be misdiagnosed as occurs with other pathological neoplasms radiologically. Here, we report an 8-year-old girl with a brainstem tumor confirmed as a ganglioglioma based on postoperative pathology results. We suggest that when a tumor located in the lower brainstem with benign radiological characteristics occurs in a child with a long-term history, the possibility of brainstem ganglioglioma should be considered in the preoperative diagnosis in addition to other low-grade neoplasms. Early stage diagnosis of brainstem ganglioglioma based on the clinical and imaging features is valuable for clinicians in order to perform effective treatment and achieve a good prognosis.
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Affiliation(s)
- X Anqi
- Department of Neurosurgery, West China Hospital, Sichuan University, 37, Guo Xue Xiang Street, Chengdu, Sichuan, 610041, PR China
| | - L Zhenlin
- Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - H Xin
- Department of Pathology, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Y Chao
- Department of Neurosurgery, West China Hospital, Sichuan University, 37, Guo Xue Xiang Street, Chengdu, Sichuan, 610041, PR China.
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Karcher DM, Jones DR, Abdo Z, Zhao Y, Shepherd TA, Xin H. Impact of commercial housing systems and nutrient and energy intake on laying hen performance and egg quality parameters. Poult Sci 2015; 94:485-501. [PMID: 25630672 PMCID: PMC4990894 DOI: 10.3382/ps/peu078] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The US egg industry is exploring alternative housing systems for laying hens. However, limited published research related to cage-free aviary systems and enriched colony cages exists related to production, egg quality, and hen nutrition. The laying hen's nutritional requirements and resulting productivity are well established with the conventional cage system, but diminutive research is available in regards to alternative housing systems. The restrictions exist with limited availability of alternative housing systems in research settings and the considerable expense for increased bird numbers in a replicate due to alternative housing system design. Therefore, the objective of the current study was to evaluate the impact of nutrient and energy intake on production and egg quality parameters from laying hens housed at a commercial facility. Lohmann LSL laying hens were housed in three systems: enriched colony cage, cage-free aviary, and conventional cage at a single commercial facility. Daily production records were collected along with dietary changes during 15 production periods (28-d each). Eggs were analyzed for shell strength, shell thickness, Haugh unit, vitelline membrane properties, and egg solids each period. An analysis of covariance (ANCOVA) coupled with a principal components analysis (PCA) approach was utilized to assess the impact of nutritional changes on production parameters and monitored egg quality factors. The traits of hen-day production and mortality had a response only in the PCA 2 direction. This finds that as house temperature and Met intake increases, there is an inflection point at which hen-day egg production is negatively effected. Dietary changes more directly influenced shell parameters, vitelline membrane parameters, and egg total solids as opposed to laying hen housing system. Therefore, further research needs to be conducted in controlled research settings on laying hen nutrient and energy intake in the alternative housing systems and resulting impact on egg quality measures.
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Affiliation(s)
- D M Karcher
- Department of Animal Science, Michigan State University, East Lansing, MI 48824
| | - D R Jones
- Egg Safety and Quality Research Unit
| | - Z Abdo
- South Atlantic Area, USDA Agricultural Research Service, Athens, GA 30605
| | - Y Zhao
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011
| | - T A Shepherd
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011
| | - H Xin
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011
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Xin H, Vorpahl SM, Collord AD, Braly IL, Uhl AR, Krueger BW, Ginger DS, Hillhouse HW. Lithium-doping inverts the nanoscale electric field at the grain boundaries in Cu2ZnSn(S,Se)4 and increases photovoltaic efficiency. Phys Chem Chem Phys 2015; 17:23859-66. [DOI: 10.1039/c5cp04707b] [Citation(s) in RCA: 158] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lithium doping changes the electric field at the GBs and improves DMSO solution processed Cu2ZnSn(S,Se)4 solar cell efficiency to 11.8%.
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Affiliation(s)
- H. Xin
- Department of Chemical Engineering
- University of Washington
- Seattle
- USA
- Molecular Engineering & Sciences Institute
| | - S. M. Vorpahl
- Molecular Engineering & Sciences Institute
- University of Washington
- Seattle
- USA
- Department of Chemistry
| | - A. D. Collord
- Department of Chemical Engineering
- University of Washington
- Seattle
- USA
- Molecular Engineering & Sciences Institute
| | - I. L. Braly
- Department of Chemical Engineering
- University of Washington
- Seattle
- USA
- Molecular Engineering & Sciences Institute
| | - A. R. Uhl
- Department of Chemical Engineering
- University of Washington
- Seattle
- USA
- Molecular Engineering & Sciences Institute
| | - B. W. Krueger
- Department of Physics
- University of Washington
- Seattle
- USA
| | - D. S. Ginger
- Molecular Engineering & Sciences Institute
- University of Washington
- Seattle
- USA
- Department of Chemistry
| | - H. W. Hillhouse
- Department of Chemical Engineering
- University of Washington
- Seattle
- USA
- Molecular Engineering & Sciences Institute
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Ma WP, Yuan ZF, Li JM, Li WP, Wang DW, Xin H. The histological analysis of the anterior cruciate ligament of canine after radiofrequency shrinkage. Eur Rev Med Pharmacol Sci 2015; 19:1951-1958. [PMID: 26125253] [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: 06/04/2023]
Abstract
OBJECTIVE Radiofrequency (RF) shrinkage has been widely conducted in clinical practice and the anterior cruciate ligament (ACL) laxity is regarded as one of the indications. However, basic researches regarding the postoperative histological changes were still insufficient. The study aimed to investigate postoperative histological changes of different areas of ACL for further identifying the optimal area for RF shrinkage. MATERIALS AND METHODS A total of 29 healthy canine (16.5 ± 2.2 kg, 4.1 ± 0.7 years) were recruited, 24 of which were randomly divided into group A and group B. The epiphyseal arrest was confirmed by X-ray examination in all animals. On one canine, an ACL's vascular perfusion model was established by the ink-perfusion method to observe the blood supply of the ACL. The mid-portion of ACL was conducted by RF in group A while the amph-portions of ACL were conducted in group B. Two legs of each canine were sub-divided into fixation group (group A1 and B1) and non-fixation group (group A2 and B2). 8 ACLs were separated from the rest 4 canine. 2 ACLs were sent for the histological examination after RF shrinkage and the rest 6 ACLs were served as blank controls. Masson staining and hematoxylin-eosin (H-E) staining were applied to observe the features of inner fibrous changes of ACL, cell count and vascular density. RESULTS According to the Masson staining, collagenous tissues were observed in area after RF shrinkage, which was more evident among group B1 than the others. The cellar density in both group A and B was found lower at 12 weeks postoperatively than that at 6 weeks postoperatively (p < 0.05). In addition, the cellar density in B1 group was found higher than that in A1 group at both 6 and 12 weeks postoperatively (p < 0.05). The density of subsynovial vessel in B1 group was found higher than that in A1 group at 6 weeks postoperatively (p < 0.05) and the density of subsynovial vessel in both A1 and B1 groups was found lower at 12 postoperatively weeks than that at 6 weeks postoperatively (p < 0.05). In both A2 and B2 groups, all ACLs were found ruptured at 12 weeks postoperatively. CONCLUSIONS The postoperative revascularization pattern of RF-treated ACL was permeating from the synovium to the RF-treated areas, and the best area for the RF shrinkage treatment was the amph-portions of the ACL. Moreover, the application of postoperative external fixation to restrict the movement of injured limb was necessary.
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Affiliation(s)
- W-P Ma
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, Shandong, P.R. China.
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Khan NA, Peng Q, Xin H, Yu P. Vibrational spectroscopic investigation of heat-induced changes in functional groups related to protein structural conformation in camelina seeds and their relationship to digestion in dairy cows. Anim Prod Sci 2015. [DOI: 10.1071/an14400] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The objective of this study was to use Fourier transform/infrared-attenuated total reflectance (FT/IR-ATR) molecular spectroscopy to quantify the heat-induced changes in feed protein molecular structures in relation to protein digestion in dairy cows. Camelina seeds were evaluated in this study as a model for feed protein. The seeds were either heated in air-draft oven (dry heating) or in autoclave (moist heating) at 120°C for 60 min or kept as raw (control). The parameters evaluated were Cornell net protein and carbohydrate system (CNCPS) subfractions, in situ ruminal degradation kinetics, intestinal digestibility of rumen undegraded protein (RUP) and protein molecular structures. Moist heating decreased (P < 0.05) the content of total rumen degradable (RDP) crude protein (CP) subfractions and increased the content of total RUP subfractions compared with raw seeds, indicating a significant shift at the site of protein digestion from rumen to post-ruminal tract. The decrease in RDP was mainly related to the marked decrease in rapidly solubilised (PA) and degradable (PB1) fractions, whereas the moderately degradable (PB2) and slowly degradable (PB3) fractions increased, suggesting a decrease in degradation rate of RDP. The in situ rumen incubation study revealed that moist heating decreased (P < 0.05) RDP and increased (P < 0.05) RUP and its intestinal digestibility. The molecular spectroscopy study revealed that moist heating altered protein molecular structures. Except PA and lag time, dry heating did not significantly alter any of the CNCPS CP subfraction, in situ ruminal CP degradation parameters, intestinal digestibility of RUP, and protein molecular structures. The correlation analysis showed that the heat-induced changes in protein secondary structures, α-helix-to-β-sheet ratio, were positively correlated (P < 0.05) with the contents PA (r = 0.90), PB1 (r = 0.89), RDP (r = 0.72) and intestinal digestibility (r = 0.91) of RUP, and negatively correlated (P < 0.05) with PB2 (r = –0.90), PB3 (r = –0.85) and RUP (–0.87). These results showed that compared with dry heating, moist heating significantly changed protein subfractions, rumen degradability and intestinal digestibility, and these changes were strongly associated with changes in protein molecular structures.
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Liao HG, Zherebetskyy D, Xin H, Czarnik C, Ercius P, Elmlund H, Pan M, Wang LW, Zheng H. Facet development during platinum nanocube growth. Science 2014; 345:916-9. [DOI: 10.1126/science.1253149] [Citation(s) in RCA: 346] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Ma C, Xin H, Jiang XY, Wang YX, Zhang YS. Relationship between renal injury and the antagonistic roles of angiotensin-converting enzyme (ACE) and ACE2. Genet Mol Res 2014; 13:2333-42. [PMID: 24781988 DOI: 10.4238/2014.april.3.5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Angiotensin-converting enzyme 2 (ACE2), a newly discovered carboxypeptidase in the renin-angiotensin system (RAS), antagonizes ACE activity and plays an active role during tissue injury. Yet the mechanism of its action is not well known. Using a streptozotocin (STZ)-induced renal injury rat model, we investigated the relationship between renal injury and the antagonism between ACE and ACE2. We assayed the levels of urea nitrogen, urine glucose, creatinine, and protein, Ace2, Ace, angiotensin II type 1 receptor (At1) and Mas receptor mRNA, and renal and plasma angiotensin II (Ang II) in STZ-treated and untreated rats. We also used histology and immunohistochemistry to assess glomerular injury and ACE2 glomerular and cortical expression. The amounts of urea nitrogen, urine glucose, creatinine, and protein were significantly higher in STZ-treated rats than in control rats (P < 0.01). There were significant pathological changes in the kidney upon STZ-treatment. Ace2 and Ace mRNA levels were significantly higher in STZ-treated rats than in control rats (P < 0.05 and P = 0.05, respectively). There was no significant difference in the Mas receptor and At1 mRNA levels in the 2 groups, although At1 levels showed an increase upon STZ-treatment. The Ang II level in the renal cortical tissue and plasma of STZ-treated rats was higher than that of control rats (P < 0.05). The increase in Ace mRNA levels was higher than that of Ace2 mRNA levels, leading to an elevated Ace/Ace2 ratio. Together, these data suggest that the ACE-Ang II-AT1 axis is the dominant axis in severe kidney injury.
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Affiliation(s)
- C Ma
- Key Laboratory of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, China
| | - H Xin
- Key Laboratory of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, China
| | - X-Y Jiang
- Key Laboratory of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, China
| | - Y-X Wang
- Key Laboratory of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, China
| | - Y-S Zhang
- Key Laboratory of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, China
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Diepstra A, Xin H, Kushekhar K, Nolte I, Visser L, Bouwman I, Kouprie N, Veenstra R, van Imhoff G, Poppema S, Hepkema B, van den Berg A. HLA Associations in EBV Status Defined Subgroups of Classical Hodgkin Lymphoma. Klin Padiatr 2014. [DOI: 10.1055/s-0034-1371103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Xin H, Yang W, Wang Q, You B, Tong Y, Peng Y. Immune tolerance of skin allograft transplantation induced by immature dendritic cells of a third party carrying donor antigens in mice. Transplant Proc 2013; 45:552-7. [PMID: 23498791 DOI: 10.1016/j.transproceed.2012.07.161] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Revised: 07/05/2012] [Accepted: 07/19/2012] [Indexed: 11/29/2022]
Abstract
BACKGROUND Dendritic cells (DCs) are the most powerful antigen-presenting cells in the body. Immature DCs (imDCs) can induce transplantation tolerance. In this study, using a mouse model of skin transplantation. We explored the antigen uptake by imDCs, changes in phenotype and function after antigen loading, as well as survival of skin grafts. METHODS Mononuclear cells from C57BL/6 mice mixed with a tritiated leucine ([(3)H]Leu) antigen supernate were incubated with Kunming mice imDC and mature DCs. We recorded the expressions of surface molecules that were detected using flow cytometry, mixed lymphocyte reactions, mean survival times, and postoperative morphological changes in skin grafts. RESULTS After the addition of allogeneic antigen supernate, the counts per minute of imDCs were significantly higher than those of mature DCs. The expression rates of I(A)/I(E) and CD80 significantly increased on the cell surface of imDCs. The counts per minute of imDCs in mixed lymphocyte reactions in the presence of allogeneic antigens was significantly higher than those of controls. Comparing mean survival times with controls, skin grafts were significantly longer in the imDCs groups from donors or from a third party carrying donor antigens. CONCLUSIONS ImDCs display a strong antigen uptake, gradually maturing in terms of phenotype and function after loading. Complementary application of cytotoxic T-lymphocyte-associated antigen 4 immunoglobulin blocks the immune response of imDCs. Both imDCs from the third party carrying donor antigens and those from the donor strain can establish antigen-specific immune tolerance to allogeneic skin grafts.
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Affiliation(s)
- H Xin
- Burn and Plastic Surgery Department of PLA 181 Hospital, Guilin, Guangxi, China
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Ma JJ, Monsivais D, Dyson MT, Coon JS, Malpani S, Ono M, Zhao H, Xin H, Pavone ME, Kim JJ, Chakravarti D, Bulun SE. Ligand-activated peroxisome proliferator-activated receptor β/δ modulates human endometrial cancer cell survival. Discov Oncol 2013; 4:358-70. [PMID: 23943160 DOI: 10.1007/s12672-013-0157-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 07/30/2013] [Indexed: 12/22/2022] Open
Abstract
Endometrial cancer is the fourth most common malignancy among women and is a major cause of morbidity contributing to approximately 8,200 annual deaths in the USA. Despite advances to the understanding of endometrial cancer, novel interventions for the disease are necessary given that many tumors become refractory to therapy. As a strategy to identify novel therapies for endometrial carcinoma, in this study, we examined the contribution of the peroxisome proliferator-activated receptor β/δ (PPARβ/δ) to endometrial cancer cell proliferation and apoptosis. We found that when activated with the highly selective PPARβ/δ agonists, GW0742 and GW501516, PPARβ/δ inhibited the proliferation and markedly induced the apoptosis of three endometrial cancer cell lines. The specificity of the PPARβ/δ-induced effects on cell proliferation and apoptosis was demonstrated using PPARβ/δ-selective antagonists and PPARβ/δ small interfering RNA in combination with PPARβ/δ-selective agonists. Furthermore, we showed that PPARβ/δ activation increased phosphatase and tensin homolog expression, which led to protein kinase B (AKT) and glycogen synthase kinase-3β (GSK3β) dephosphorylation, and increased β-catenin phosphorylation associated with its degradation. Overall, our data suggest that the antitumorigenic effect of PPARβ/δ activation in endometrial cancer is mediated through the negative regulation of the AKT/GSK3β/β-catenin pathway. These findings warrant further investigation of PPARβ/δ as a therapeutic target in endometrial cancer.
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Affiliation(s)
- J J Ma
- Division of Reproductive Biology Research, Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, 250 E. Superior Street, Suite 3-2306, Chicago, IL, 60611-02914, USA
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Lian ZX, Wang F, Xin H, Zhang JD, Chen ZY, Yao RY, Cai SL. Atp-induced cardioprotection against myocardial ischemia/reperfusion injury is mediated through risk pathway. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p1863] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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