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Ding Z, Cui J, Zhang Q, Feng J, Du B, Xue G, Yan C, Gan L, Fan Z, Feng Y, Zhao H, Xu Z, Yu Z, Fu T, Zhang R, Cui X, Tian Z, Chen J, Chen Y, Li Z, Zhong X, Lin Y, Yuan J. Detecting and quantifying Veillonella by real-time quantitative PCR and droplet digital PCR. Appl Microbiol Biotechnol 2024; 108:45. [PMID: 38175238 DOI: 10.1007/s00253-023-12861-1] [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: 05/30/2023] [Revised: 10/26/2023] [Accepted: 10/28/2023] [Indexed: 01/05/2024]
Abstract
Veillonella spp. are Gram-negative opportunistic pathogens present in the respiratory, digestive, and reproductive tracts of mammals. An abnormal increase in Veillonella relative abundance in the body is closely associated with periodontitis, inflammatory bowel disease, urinary tract infections, and many other diseases. We designed a pair of primers and a probe based on the 16S rRNA gene sequences of Veillonella and conducted real-time quantitative PCR (qPCR) and droplet digital PCR (ddPCR) to quantify the abundance of Veillonella in fecal samples. These two methods were tested for specificity and sensitivity using simulated clinical samples. The sensitivity of qPCR was 100 copies/μL, allowing for the accurate detection of a wide range of Veillonella concentrations from 103 to 108 CFU/mL. The sensitivity of ddPCR was 11.3 copies/μL, only allowing for the accurate detection of Veillonella concentrations from 101 to 104 CFU/mL because of the limited number of droplets generated by ddPCR. ddPCR is therefore more suitable for the detection of low-abundance Veillonella samples. To characterize the validity of the assay system, clinical samples from children with inflammatory bowel disease were collected and analyzed, and the results were verified using isolation methods. We conclude that molecular assays targeting the 16S rRNA gene provides an important tool for the rapid diagnosis of chronic and infectious diseases caused by Veillonella and also supports the isolation and identification of Veillonella for research purposes. KEY POINTS: • With suitable primer sets, the qPCR has a wider detection range than ddPCR. • ddPCR is suitable for the detection of low-abundance samples. • Methods successfully guided the isolation of Veillonella in clinical sample.
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Affiliation(s)
- Zanbo Ding
- College of Life Sciences, Northwest A&F University, Yangling, China
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Jinghua Cui
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Qun Zhang
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Junxia Feng
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Bing Du
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Guanhua Xue
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Chao Yan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Lin Gan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Zheng Fan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Yanling Feng
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Hanqing Zhao
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Ziying Xu
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Zihui Yu
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Tongtong Fu
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Rui Zhang
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Xiaohu Cui
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Ziyan Tian
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Jinfeng Chen
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Yujie Chen
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Zhoufei Li
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Xuemei Zhong
- Gastroenterology Department, Children's Hospital of Capital Institute of Pediatrics, Beijing, China.
| | - Yanbing Lin
- College of Life Sciences, Northwest A&F University, Yangling, China.
| | - Jing Yuan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China.
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Li Y, Ding Z, Xu T, Wang Y, Wu Q, Song T, Wei X, Dong J, Lin Y. Synthetic consortia of four strains promote Schisandra chinensis growth by regulating soil microbial community and improving soil fertility. Planta 2024; 259:135. [PMID: 38678496 DOI: 10.1007/s00425-024-04410-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 04/09/2024] [Indexed: 05/01/2024]
Abstract
MAIN CONCLUSION Synthetic consortia performed better in promoting Schisandra chinensis growth than individual strains, and this result provides valuable information for the development of synthetic microbial fertilizers. Schisandra chinensis is an herbal medicine that can treat numerous diseases. However, the excessive reliance on chemical fertilizers during the plantation of S. chinensis has severely restricted the development of the S. chinensis planting industry. Plant growth-promoting rhizobacteria (PGPR) can promote the growth of a wide range of crops, and synthetic consortia of them are frequently superior to those of a single strain. In this study, we compared the effects of four PGPR and their synthetic consortia on S. chinensis growth. The pot experiment showed that compared with the control, synthetic consortia significantly increased the plant height, biomass, and total chlorophyll contents of S. chinensis, and their combined effects were better than those of individual strains. In addition, they improved the rhizosphere soil fertility (e.g., TC and TN contents) and enzyme activities (e.g., soil urease activity) and affected the composition and structure of soil microbial community significantly, including promoting the enrichment of beneficial microorganisms (e.g., Actinobacteria and Verrucomicrobiota) and increasing the relative abundance of Proteobacteria, a dominant bacterial phylum. They also enhanced the synergistic effect between the soil microorganisms. The correlation analysis between soil physicochemical properties and microbiome revealed that soil microorganisms participated in regulating soil fertility and promoting S. chinensis growth. This study may provide a theoretical basis for the development of synthetic microbial fertilizers for S. chinensis.
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Affiliation(s)
- Yan Li
- College of Life Sciences, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Zanbo Ding
- College of Life Sciences, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Tengqi Xu
- College of Life Sciences, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yulong Wang
- College of Life Sciences, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Qiaolu Wu
- College of Life Sciences, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Tianjiao Song
- College of Life Sciences, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Xiaomin Wei
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Juane Dong
- College of Life Sciences, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yanbing Lin
- College of Life Sciences, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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Fan Z, Fu T, Li Z, Du B, Cui X, Zhang R, Feng Y, Zhao H, Xue G, Cui J, Yan C, Gan L, Feng J, Xu Z, Yu Z, Tian Z, Ding Z, Chen J, Chen Y, Yuan J. The role of integration host factor in biofilm and virulence of high-alcohol-producing Klebsiella pneumoniae. Microbiol Spectr 2023; 11:e0117023. [PMID: 37732783 PMCID: PMC10581059 DOI: 10.1128/spectrum.01170-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 07/28/2023] [Indexed: 09/22/2023] Open
Abstract
Klebsiella pneumoniae is a well-known human nosocomial pathogen with an arsenal of virulence factors, including capsular polysaccharides (CPS), fimbriae, flagella, and lipopolysaccharides (LPS). Our previous study found that alcohol acted as an essential virulence factor for high-alcohol-producing K. pneumoniae (HiAlc Kpn). Integration host factor (IHF) is a nucleoid-associated protein that functions as a global virulence regulator in Escherichia coli. However, the regulatory role of IHF in K. pneumoniae remains unknown. In the present study, we found that deletion of ihfA or ihfB resulted in a slight defect in bacterial growth, a severe absence of biofilm formation and cytotoxicity, and a significant reduction in alcohol production. RNA sequencing differential gene expression analysis showed that compared with the wild-type control, the expression of many virulence factor genes was downregulated in ΔihfA and ΔihfB strains, such as those related to CPS (rcsA, galF, wzi, and iscR), LPS (rfbABCD), type I and type III fimbriae (fim and mrk operon), cellulose (bcs operon), iron transporter (feoABC, fhuA, fhuF, tonB, exbB, and exbD), quorum sensing (lsr operon and sdiA), type II secretion system (T2SS) and type VI secretion system (T6SS) (tssG, hcp, and gspE). Of these virulence factors, CPS, LPS, fimbriae, and cellulose are involved in biofilm formation. In addition, IHF could affect the alcohol production by regulating genes related to glucose intake (ptsG), pyruvate formate-lyase, alcohol dehydrogenase, and the tricarboxylic acid (TCA) cycle. Our data provided new insights into the importance of IHF in regulating the virulence of HiAlc Kpn. IMPORTANCE Klebsiella pneumoniae is a well-known human nosocomial pathogen that causes various infectious diseases, including urinary tract infections, hospital-acquired pneumonia, bacteremia, and liver abscesses. Our previous studies demonstrated that HiAlc Kpn mediated the development of nonalcoholic fatty liver disease by producing excess endogenous alcohol in vivo. However, the regulators regulating the expression of genes related to metabolism, biofilm formation, and virulence of HiAlc Kpn remain unclear. In this study, the regulator IHF was found to positively regulate biofilm formation and many virulence factors including CPS, LPS, type I and type III fimbriae, cellulose, iron transporter, AI-2 quorum sensing, T2SS, and T6SS in HiAlc Kpn. Furthermore, IHF positively regulated alcohol production in HiAlc Kpn. Our results suggested that IHF could be a potential drug target for treating various infectious diseases caused by K. pneumoniae. Hence, the regulation of different virulence factors by IHF in K. pneumoniae requires further investigation.
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Affiliation(s)
- Zheng Fan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Tongtong Fu
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Zhoufei Li
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Bing Du
- University of Edinburgh, Edinburgh, United Kingdom
| | - Xiaohu Cui
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Rui Zhang
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Yanling Feng
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Hanqing Zhao
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Guanhua Xue
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Jinghua Cui
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Chao Yan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Lin Gan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Junxia Feng
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Ziying Xu
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Zihui Yu
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Ziyan Tian
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Zanbo Ding
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Jinfeng Chen
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Yujie Chen
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Jing Yuan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
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Cui X, Du B, Feng J, Feng Y, Fan Z, Chen J, Cui J, Gan L, Fu T, Tian Z, Zhang R, Yan C, Zhao H, Xu W, Xu Z, Yu Z, Ding Z, Li Z, Chen Y, Xue G, Yuan J. A novel phage carrying capsule depolymerase effectively relieves pneumonia caused by multidrug-resistant Klebsiella aerogenes. J Biomed Sci 2023; 30:75. [PMID: 37653407 PMCID: PMC10470133 DOI: 10.1186/s12929-023-00946-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 06/30/2023] [Indexed: 09/02/2023] Open
Abstract
BACKGROUND Klebsiella aerogenes can cause ventilator-associated pneumonia by forming biofilms, and it is frequently associated with multidrug resistance. Phages are good antibiotic alternatives with unique advantages. There has been a lack of phage therapeutic explorations, kinetic studies, and interaction mechanism research targeting K. aerogenes. METHODS Plaque assay, transmission electron microscopy and whole-genome sequencing were used to determine the biology, morphology, and genomic characteristics of the phage. A mouse pneumonia model was constructed by intratracheal/endobronchial delivery of K. aerogenes to assess the therapeutic effect of phage in vivo. Bioinformatics analysis and a prokaryotic protein expression system were used to predict and identify a novel capsule depolymerase. Confocal laser scanning microscopy, Galleria mellonella larvae infection models and other experiments were performed to clarify the function of the capsule depolymerase. RESULTS A novel lytic phage (pK4-26) was isolated from hospital sewage. It was typical of the Podoviridae family and exhibited serotype specificity, high lytic activity, and high environmental adaptability. The whole genome is 40,234 bp in length and contains 49 coding domain sequences. Genomic data show that the phage does not carry antibiotic resistance, virulence, or lysogenic genes. The phage effectively lysed K. aerogenes in vivo, reducing mortality and alleviating pneumonia without promoting obvious side effects. A novel phage-derived depolymerase was predicted and proven to be able to digest the capsule, remove biofilms, reduce bacterial virulence, and sensitize the bacteria to serum killing. CONCLUSIONS The phage pK4-26 is a good antibiotic alternative and can effectively relieve pneumonia caused by multidrug-resistant K. aerogenes. It carries a depolymerase that removes biofilms, reduces virulence, and improves intrinsic immune sensitivity.
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Affiliation(s)
- Xiaohu Cui
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Bing Du
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
- School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Junxia Feng
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Yanling Feng
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Zheng Fan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Jinfeng Chen
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Jinghua Cui
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Lin Gan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Tongtong Fu
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Ziyan Tian
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Rui Zhang
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Chao Yan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Hanqing Zhao
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Wenjian Xu
- Department of Clinical Laboratory, Children's Hospital Affiliated to Capital Institute of Pediatrics, Beijing, China
| | - Ziying Xu
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Zihui Yu
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Zanbo Ding
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Zhoufei Li
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Yujie Chen
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Guanhua Xue
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China.
| | - Jing Yuan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, 100020, China.
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Fan Z, Fu T, Liu H, Li Z, Du B, Cui X, Zhang R, Feng Y, Zhao H, Xue G, Cui J, Yan C, Gan L, Feng J, Xu Z, Yu Z, Tian Z, Ding Z, Chen J, Chen Y, Yuan J. Glucose Induces Resistance to Polymyxins in High-Alcohol-Producing Klebsiella pneumoniae via Increasing Capsular Polysaccharide and Maintaining Intracellular ATP. Microbiol Spectr 2023; 11:e0003123. [PMID: 37338347 PMCID: PMC10434286 DOI: 10.1128/spectrum.00031-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 05/31/2023] [Indexed: 06/21/2023] Open
Abstract
High-alcohol-producing K. pneumoniae (HiAlc Kpn) causes nonalcoholic fatty liver disease (NAFLD) by producing excess endogenous alcohol in the gut of patients with NAFLD, using glucose as the main carbon source. The role of glucose in the response of HiAlc Kpn to environmental stresses such as antibiotics remains unclear. In this study, we found that glucose could enhance the resistance of HiAlc Kpn to polymyxins. First, glucose inhibited the expression of crp in HiAlc Kpn and promoted the increase of capsular polysaccharide (CPS), which promoted the drug resistance of HiAlc Kpn. Second, glucose maintained high ATP levels in HiAlc Kpn cells under the pressure of polymyxins, enhancing the resistance of the cells to the killing effect of antibiotics. Notably, the inhibition of CPS formation and the decrease of intracellular ATP levels could both effectively reverse glucose-induced polymyxins resistance. Our work demonstrated the mechanism by which glucose induces polymyxins resistance in HiAlc Kpn, thereby laying the foundation for developing effective treatments for NAFLD caused by HiAlc Kpn. IMPORTANCE HiAlc Kpn can use glucose to produce excess endogenous alcohol for promoting the development of NAFLD. Polymyxins are the last line of antibiotics and are commonly used to treat infections caused by carbapenem-resistant K. pneumoniae. In this study, we found that glucose increased bacterial resistance to polymyxins via increasing CPS and maintaining intracellular ATP; this increases the risk of failure to treat NAFLD caused by multidrug-resistant HiAlc Kpn infection. Further research revealed the important roles of glucose and the global regulator, CRP, in bacterial resistance and found that inhibiting CPS formation and decreasing intracellular ATP levels could effectively reverse glucose-induced polymyxins resistance. Our work reveals that glucose and the regulatory factor CRP can affect the resistance of bacteria to polymyxins, laying a foundation for the treatment of infections caused by multidrug-resistant bacteria.
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Affiliation(s)
- Zheng Fan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Tongtong Fu
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Hongbo Liu
- School of Pharmaceutical Sciences, Jilin University, Changchun, China
| | - Zhoufei Li
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Bing Du
- University of Edinburgh, Edinburgh, United Kingdom
| | - Xiaohu Cui
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Rui Zhang
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
- Graduate School, Peking Union Medical College, Beijing, China
| | - Yanling Feng
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Hanqing Zhao
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Guanhua Xue
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Jinghua Cui
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Chao Yan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Lin Gan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Junxia Feng
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Ziying Xu
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Zihui Yu
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Ziyan Tian
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Zanbo Ding
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Jinfeng Chen
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Yujie Chen
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Jing Yuan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
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6
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Zhang C, Wang X, Ding Z, Zhou H, Liu P, Xue X, Cao W, Zhu Y, Chen J, Shen W, Yang S, Wang F. [Electroencephalographic microstates in vestibular schwannoma patients with tinnitus]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:793-799. [PMID: 37313821 DOI: 10.12122/j.issn.1673-4254.2023.05.15] [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: 06/15/2023]
Abstract
OBJECTIVE To explore the biomarkers of tinnitus in vestibular schwannoma patients using electroencephalographic (EEG) microstate technology. METHODS The EEG and clinical data of 41 patients with vestibular schwannoma were collected. All the patients were evaluated by SAS, SDS, THI and VAS scales. The EEG acquisition time was 10-15 min, and the EEG data were preprocessed and analyzed using MATLAB and EEGLAB software package. RESULTS Of the 41 patients with vestibular schwannoma, 29 patients had tinnitus and 12 did not have tinnitus, and their clinical parameters were comparable. The average global explanation variances of the non-tinnitus and tinnitus groups were 78.8% and 80.1%, respectively. The results of EEG microstate analysis showed that compared with those without tinnitus, the patients with tinnitus had an increased frequency (P=0.033) and contribution (P=0.028) of microstate C. Correlation analysis showed that THI scale scores of the patients were negatively correlated with the duration of microstate A (R=-0.435, P=0.018) and positively with the frequencies of microstate B (R=0.456, P=0.013) and microstate C (R=0.412, P=0.026). Syntax analysis showed that the probability of transition from microstate C to microstate B increased significantly in vestibular schwannoma patients with tinnitus (P=0.031). CONCLUSION EEG microstate features differ significantly between vestibular schwannoma patients with and without tinnitus. This abnormality in patients with tinnitus may reflect the potential abnormality in the allocation of neural resources and the transition of brain functional activity.
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Affiliation(s)
- C Zhang
- The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- Medical School of Chinese PLA, Beijing 100853, China
| | - X Wang
- Medical School of Chinese PLA, Beijing 100853, China
| | - Z Ding
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - H Zhou
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - P Liu
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - X Xue
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - W Cao
- The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - Y Zhu
- The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - J Chen
- The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - W Shen
- The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - S Yang
- The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
| | - F Wang
- The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
- The Sixth Medical Center, Chinese PLA General Hospital, Beijing 100048, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing 100048, China
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7
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Li YY, Qu XL, Ma R, Hu J, Hei Y, Xu WQ, Wu W, Ding Z, Yang XJ. [Treatment of orbital vascular malformations with intralesional bleomycin injection and N-butyl-2-cyanoacrylate glue embolization]. Zhonghua Yan Ke Za Zhi 2023; 59:37-43. [PMID: 36631056 DOI: 10.3760/cma.j.cn112142-20220424-00207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Objective: To evaluate the clinical efficacy of bleomycin lavage combined with N-butyl-2-cyanoacrylate glue embolization and resection in the treatment of orbital vascular malformations. Methods: It was a retrospective case series study. Patients with orbital vascular malformations diagnosed at the Ophthalmology Division of Chinese PLA General Hospital from January 2018 to October 2021 were included and divided into exophthalmos group and non-exophthalmos group based on whether the patients had postural exophthalmos. Intralesional bleomycin injection and N-butyl-2-cyanoacrylate glue embolization were performed. The preoperative and postoperative visual acuity, the dosages of bleomycin and isobutyl cyanoacrylate glue, pathological results, imaging findings and remission rate were recorded and analyzed. The Chi-square test, Wilcoxon signed rank analysis and Mann-Whitney U test were used for statistical analysis. Results: A total of 58 patients (58 eyes)were included, and there were 22 males (37.9%) and 36 females (62.1%). Nineteen (32.8%) patients had postural exophthalmos, and 39 (67.2%) patients did not suffer postural exophthalmos. The patient's age of the two groups was 39.0 (28.0, 54.5) years vs. 14.0 (5.7, 26.5) years, with a statistically significant difference (Z=-3.96, P<0.001). There was no significant difference in gender, eye laterality, follow-up time and the disease course between the two groups (all P>0.05). During the operation, the dosage of bleomycin was 15 000 (13 500, 15 000) U in the exophthalmos group, and 15 000 (9 000, 16 500) U in the non-exophthalmos group (Z=-0.70, P=0.944). The dosages of N-butyl-2-cyanoacrylate glue were 2.8 (1.0, 3.0) ml and 1.7 (1.0, 2.2) ml, respectively, in the two groups, with no significant difference (Z=-1.11, P=0.268). There was no visual impairment in both groups, while the visual acuity in 5 patients without postural exophthalmos was improved postoperatively. The imaging examination results showed no difference in the malformed vascular area before and after the treatment in the exophthalmos group [384.0 (329.0, 458.0) mm2 vs. 330.5 (271.6, 356.7) mm2; Z=-1.26, P=0.208], but a significantly decreased area after the treatment in the non-exophthalmos group [960.8 (822.1, 1058.3) mm2 vs. 311.6 (164.6, 361.6) mm2; Z=-2.67, P=0.008]. All patients had no obvious local or systemic adverse reactions during the follow-up. The pathology reports showed vascular malformations in all 15 specimens obtained from the exophthalmos group, as well as vascular malformations in 41.0% (16/39) of specimens and venous lymphatic malformations in 59.0% (23/39) of specimens from the non-exophthalmos group. Thirty-nine patients had complete remission (67.2%), 19 patients had partial remission (32.8%), and the effective treatment rate was 100%. Conclusion: Bleomycin lavage combined with N-butyl-2-cyanoacrylate glue embolization can achieve good therapeutic effects on orbital vascular malformations.
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Affiliation(s)
- Y Y Li
- The Ophthalmology Division of Chinese PLA General Hospital, Beijing 100039, China
| | - X L Qu
- Department of Ophthalmology, First Affiliated Hospital of Shandong First Medical University, Jinan 250014, China
| | - R Ma
- The Ophthalmology Division of Chinese PLA General Hospital, Beijing 100039, China
| | - J Hu
- The Ophthalmology Division of Chinese PLA General Hospital, Beijing 100039, China
| | - Y Hei
- The Ophthalmology Division of Chinese PLA General Hospital, Beijing 100039, China
| | - W Q Xu
- The Ophthalmology Division of Chinese PLA General Hospital, Beijing 100039, China
| | - W Wu
- The Ophthalmology Division of Chinese PLA General Hospital, Beijing 100039, China
| | - Z Ding
- The Ophthalmology Division of Chinese PLA General Hospital, Beijing 100039, China
| | - X J Yang
- The Ophthalmology Division of Chinese PLA General Hospital, Beijing 100039, China
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Chen T, Liu J, Ding Z. Integrated Analysis of Transcriptome in Interleukin-10 Treated Peripheral Blood Cell Reveal Conservative Differential Expressed Genes. Indian J Pharm Sci 2023. [DOI: 10.36468/pharmaceutical-sciences.1088] [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: 03/02/2023] Open
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9
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Fu T, Fan Z, Li Y, Li Z, Du B, Liu S, Cui X, Zhang R, Zhao H, Feng Y, Xue G, Cui J, Yan C, Gan L, Feng J, Xu Z, Yu Z, Tian Z, Ding Z, Chen J, Chen Y, Yuan J. ArcR contributes to tolerance to fluoroquinolone antibiotics by regulating katA in Staphylococcus aureus. Front Microbiol 2023; 14:1106340. [PMID: 36910210 PMCID: PMC9998937 DOI: 10.3389/fmicb.2023.1106340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 01/04/2023] [Indexed: 02/26/2023] Open
Abstract
Staphylococcus aureus is an opportunistic pathogen that shows a unique ability to quickly respond to a variety of antibiotics. The Crp/Fnr family transcriptional regulator ArcR controls expression of arginine deiminase pathway genes arcABDC, which enable the utilization of arginine as an energy source for cell growth under anaerobic conditions. However, ArcR shares low overall similarity with other Crp/Fnr family proteins, suggesting that they differ in the response to environmental stress. In this study, MIC and survival assays were performed to determine the role of ArcR in antibiotic resistance and tolerance. The results showed that deletion of arcR reduced tolerance of S.aureus to fluoroquinolone antibiotics, mainly through a defect in the response to oxidative stress. In ΔarcR mutant, the expression of the major catalase gene katA was downregulated, and katA overexpression restored bacterial resistance to oxidative stress and antibiotics. We showed that ArcR directly regulated katA transcription by binding to the promoter region of katA. Therefore, our results revealed the contribution of ArcR in bacterial tolerance to oxidative stress and subsequently to fluoroquinolones antibiotics. This study added our understanding on the role of Crp/Fnr family in bacterial susceptibility to antibiotics.
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Affiliation(s)
- Tongtong Fu
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Zheng Fan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Yujie Li
- Department of Life Science and Medicine, University of Science and Technology of China, Hefei, China
| | - Zhoufei Li
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Bing Du
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Shiyu Liu
- Military Supplies and Energy Quality Supervision Station of NV, PLA, Beijing, China
| | - Xiaohu Cui
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Rui Zhang
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Hanqing Zhao
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Yanling Feng
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Guanhua Xue
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Jinghua Cui
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Chao Yan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Lin Gan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Junxia Feng
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Ziying Xu
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Zihui Yu
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Ziyan Tian
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Zanbo Ding
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Jinfeng Chen
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Yujie Chen
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
| | - Jing Yuan
- Department of Bacteriology, Capital Institute of Pediatrics, Beijing, China
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Fridriksson B, Berndtson M, Hamnered H, Faeder E, Ding Z, Hedner J, Grote L. Beneficial effects of telemedicine-based follow up in sleep apnea - a randomized controlled multi-center trial. Sleep Med 2022. [DOI: 10.1016/j.sleep.2022.05.197] [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: 11/24/2022]
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11
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Zheng H, Wang QQ, Xiong LL, Yu Y, Fei J, Ding Z. [Comparison of time series and case-crossover analyses in environmental epidemiology]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1446-1451. [PMID: 36274612 DOI: 10.3760/cma.j.cn112150-20220415-00375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Time-series and case-crossover are two main study designs in environmental epidemiology. However, due to the differences in design principles and model construction between the two analyses, the results of the two analyses may not be consistent. Herein, we examined the short-term effect of cold spells on cardiovascular mortality in Nanjing using both time series and case-crossover analyses, aiming to provide a basis for the selection of appropriate research design in environmental epidemiology.
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Affiliation(s)
- H Zheng
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Q Q Wang
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - L L Xiong
- Nanjing Municipal Center for Disease Control and Prevention, Nanjing 210003, China
| | - Y Yu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - J Fei
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Z Ding
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
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Soussain C, Grommes C, Ward R, Peterson C, Cravets M, Mathias A, Sosa J, Kirby B, Ding Z, Yusuf I, Rose M, Steinberg M, Tun H. PB2096: A PHASE 1B/2 STUDY OF GB5121, A NOVEL, HIGHLY SELECTIVE, POTENT, AND CNS-PENETRANT BTK INHIBITOR FOR RELAPSED/REFRACTORY PRIMARY/SECONDARY CNS LYMPHOMA AND PRIMARY VITREORETINAL LYMPHOMA. Hemasphere 2022. [PMCID: PMC9428960 DOI: 10.1097/01.hs9.0000851216.47783.78] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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13
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Singh J, Hatcher S, Ku AA, Ding Z, Feng FY, Sharma RA, Pfister SX. Model Selection for the Preclinical Development of New Drug-Radiotherapy Combinations. Clin Oncol (R Coll Radiol) 2021; 33:694-704. [PMID: 34474951 DOI: 10.1016/j.clon.2021.08.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 07/13/2021] [Accepted: 08/11/2021] [Indexed: 12/12/2022]
Abstract
Radiotherapy plays an essential role in the treatment of more than half of all patients with cancer. In recent decades, advances in devices that deliver radiation and the development of treatment planning software have helped radiotherapy attain precise tumour targeting with minimal toxicity to surrounding tissues. Simultaneously, as more targeted drug therapies are being brought into the market, there has been significant interest in improving cure rates for cancer by adding drugs to radiotherapy to widen the therapeutic window, the difference between normal tissue toxicity and treatment efficacy. The development of new combination therapies will require judicious adaptation of preclinical models that are routinely used for traditional drug discovery. Here we highlight the strengths and weaknesses of each of these preclinical models and discuss how they can be used optimally to identify new and clinically beneficial drug-radiotherapy combinations.
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Affiliation(s)
- J Singh
- Global Translational Science, Varian, a Siemens Healthineers company, Palo Alto, California, USA
| | - S Hatcher
- Global Translational Science, Varian, a Siemens Healthineers company, Palo Alto, California, USA
| | - A A Ku
- Global Translational Science, Varian, a Siemens Healthineers company, Palo Alto, California, USA
| | - Z Ding
- Global Translational Science, Varian, a Siemens Healthineers company, Palo Alto, California, USA
| | - F Y Feng
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California, USA; Division of Hematology and Oncology, Department of Medicine, University of California, San Francisco, California, USA; Department of Radiation Oncology, University of California, San Francisco, California, USA; Department of Urology, University of California, San Francisco, California, USA
| | - R A Sharma
- Global Translational Science, Varian, a Siemens Healthineers company, Palo Alto, California, USA; UCL Cancer Institute, University College London, London, UK
| | - S X Pfister
- Global Translational Science, Varian, a Siemens Healthineers company, Palo Alto, California, USA.
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Xu CY, Ye HW, Chen B, Wu YF, Cao Z, Ding Z, Yao YP, Gao Y, Li J, Zhu JJ, He S. Analysis of risk factors and prognosis of post-stroke pulmonary infection in integrated ICU. Eur Rev Med Pharmacol Sci 2021; 25:856-865. [PMID: 33577040 DOI: 10.26355/eurrev_202101_24654] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The incidence of SAP (stroke-associated pneumonia) is high in integrated ICU (Intensive Care Unit), and it might result in sepsis, which exacerbates the clinical outcome and increases mortality. It is necessary to investigate the epidemiological features of post-stroke infection and sepsis, identify the risk factors and analyze the prognosis. PATIENTS AND METHODS We retrospectively analyzed the data of 329 patients with cerebral infarction or cerebral hemorrhage, from seven tertiary university hospitals in Suzhou, Jiangsu Province, between January 1, 2016, and December 31, 2016. Basic demographic and clinical data including common health evaluation, stroke severity, microbiological parameters, surgical interventions and treatments were recorded for the analysis. SAP was diagnosed according to the criteria and recommendation from American Heart Association (AHA). RESULTS 188 (66.4%) patients suffered pneumonia, 124 patients were diagnosed as SAP. Compared with SAP, patients with non-SAP pulmonary infection had prolonged mechanical ventilation time, prolonged central venous catheter indwelling time, and higher incidence of sepsis (17.7% vs. 48.4%). 53 patients (18.7%) developed sepsis during hospitalization, whose mortality rate during hospitalization and the occurrence of neurologic dysfunction at 3 months were significantly increased (p<0.05). 130 positive results of sputum cultures were found. The detected pathogens were mainly gram-negative bacteria. The pathogenic detection rate of non-SAP patients with pulmonary infection was higher (78.1%). The in-hospital mortality was 16.3% and the related risk factors were higher NIHSS score at admission, lower GCS score at admission, pulmonary infection (especially non-SAP pulmonary infection) and sepsis during hospitalization. CONCLUSIONS The incidence of pulmonary infection after stroke in the integrated ICU is high, and it is easy to be complicated with sepsis, prolonging the mechanical ventilation time, central venous catheter indwelling time and hospitalization time, and the prognosis of long-term neurological function is relatively poor. The definition of stroke-associated pneumonia has implications for the classification of clinical infections, the prediction of possible pathogenic pathogens, and the guidance of anti-infective treatment.
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Affiliation(s)
- C-Y Xu
- Department of Emergency Medicine, Changshu Hospital Affiliated to Soochow University, the First People's Hospital of Changshu, Changshu, Jiangsu Province, China.
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Ding Z, Liu SJ, Liu XW, Ma Q, Qiao Z. MiR-16 inhibits proliferation of cervical cancer cells by regulating KRAS. Eur Rev Med Pharmacol Sci 2021; 24:10419-10425. [PMID: 33155198 DOI: 10.26355/eurrev_202010_23393] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to explore the effects of micro ribonucleic acid (miR)-16 on the proliferation and apoptosis of cervical cancer (CC) cells and its related regulatory mechanism. MATERIALS AND METHODS The downstream regulatory targets of miR-16 were analyzed based on the miRNA online database. HCC94 cells were selected as experimental objects. Subsequently, the cells were transfected with miR-16 mimic (miR-16 mimic group), miR-16 small interfering RNA (siRNA) (miR-16 siRNA group) and only Lipofectamine 2000 transfection reagent [blank control group and miR-16 normal control (NC) group]. The expression level of miR-16 in HCC94 cells was measured via quantitative reverse transcription-polymerase chain reaction (qRT-PCR). Cell counting kit-8 (CCK-8) assay, 5-Ethynyl-2'-deoxyuridine (EdU) staining assay and flow cytometry were then conducted to detect the effects of miR-16 on the viability, proliferation and apoptosis of HCC94 cells, respectively. Additionally, the effect of miR-16 on the protein expression level of Kirsten rat sarcoma viral oncogene homolog (KRAS) in HCC94 cells was determined via Western blotting. RESULTS MiRNA online database analysis showed that KRAS was the downstream target of miR-16. Compared with miR-16 NC group, the viability and proliferation ability of HCC94 cells increased significantly in miR-16 siRNA group but decreased significantly in miR-16 mimic group (p<0.05). However, the apoptosis rate evidently declined in miR-16 siRNA group while increased remarkably in miR-16 mimic group (p<0.05). In addition, the protein expression level of KRAS in HCC94 cells was significantly higher in miR-16 siRNA group but significantly lower in miR-16 mimic group when compared with miR-16 NC group (p<0.05). CONCLUSIONS MiR-16 is lowly expressed in HCC94 cells. Moreover, highly expressed miR-16 represses the viability and proliferation of HCC94 cells and promotes their apoptosis by targeted regulation on KRAS.
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Affiliation(s)
- Z Ding
- Department of Oncology, Affiliated Hospital of Jining Medical University, Jining, Jining, China.
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16
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Pan T, Ding Z, Yan J, Zhao P. Comment on: Randomized clinical trial on closure versus non-closure of mesenteric defects during laparoscopic gastric bypass surgery. Br J Surg 2021; 108:e276. [PMID: 34009310 DOI: 10.1093/bjs/znab144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 04/06/2021] [Indexed: 11/13/2022]
Affiliation(s)
- T Pan
- Department of Gastrointestinal Surgery, Sichuan Cancer Hospital & Research Institute, School of Medicine, University of Electronic Science and Technology of China (UESTC), Chengdu, China
| | - Z Ding
- Department of Gastrointestinal Surgery, Sichuan Cancer Hospital & Research Institute, School of Medicine, University of Electronic Science and Technology of China (UESTC), Chengdu, China
| | - J Yan
- Department of Gastrointestinal Surgery, Sichuan Cancer Hospital & Research Institute, School of Medicine, University of Electronic Science and Technology of China (UESTC), Chengdu, China
| | - P Zhao
- Department of Gastrointestinal Surgery, Sichuan Cancer Hospital & Research Institute, School of Medicine, University of Electronic Science and Technology of China (UESTC), Chengdu, China
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Ding Z, Sherlock M, Zachos M. A184 INCIDENCE OF VENOUS THROMBOTIC EVENTS AND RISK FACTORS IN CHILDREN HOSPITALIZED WITH INFLAMMATORY BOWEL DISEASE: A RETROSPECTIVE, CASE-CONTROL STUDY. J Can Assoc Gastroenterol 2021. [DOI: 10.1093/jcag/gwab002.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Limited research has been published to describe the incidence of venous thromboembolism (VTE) and relevant risk factors in Canadian children with inflammatory bowel disease (IBD).
Aims
The present study aimed to investigate the incidence of VTE amongst hospitalized pediatric IBD patients over a 10-year period and identify risk factors for the development of VTE.
Methods
A retrospective, matched case-control study was performed at McMaster Children’s Hospital. Hospitalized pediatric patients with IBD (<18 years old) from September 2009 to August 2020 were selected. Inpatient data was extracted from the medical record database, including baseline demographic data, thromboembolic events and potential risk factors for VTE.
Results
There were 890 hospitalizations of IBD patients during the study period. 15 (1.69%) were diagnosed with a VTE, including 4 males and 11 females (mean age 13.4±2.9 years old). 12 ulcerative colitis (UC) (80%) and 3 Crohn’s disease (CD) (20%) hospitalizations were comprised in the VTE group. There was a significant difference in VTE rate between females (2.7%) and males (0.8%) (P = 0.03). The VTE rate in the UC group (4.2%) was significantly higher than in the CD group (0.6%) (P = 0.001). The incidence of VTE amongst hospitalized IBD patients did not vary over the 10-year period (P = 0.496). Length of stay in hospital, albumin level and central venous catheter were shown to be significantly different, although they were not identified as independent risk factors (P >0 .05). Of the 15 hospitalizations with VTE, 6/15 (40%) were superficial VTEs in the extremities and 9/15 (60%) had a deep vein thrombosis (DVT) including 6 in the extremities and 3 in the abdomen. VTEs were associated with a peripheral line in 7 patients and with a PICC line in 4 hospitalizations. 2 of 9 (22%) with extremity DVT developed symptomatic pulmonary embolism. An inherited thrombotic condition was identified in 2 of 15 with VTEs. 12/15 (80%) with VTEs were symptomatic and all VTE related symptoms happened in patients with extremity thrombosis and pulmonary embolism. 7 of 15 (47%) VTEs were treated with anticoagulation therapy for 1–6 months. VTE related symptoms and repeat imaging tests significantly improved, and no patient developed a bleeding complication as a result of treatment.
Conclusions
The VTE rate in pediatric IBD patients was relatively low at McMaster Children’s hospital. Children with VTE were disproportionately females with ulcerative colitis compared with children with no VTE. Central venous line insertion may be correlated with the risk for VTE in children with IBD. Most VTEs and related symptoms happened in patients with extremity thrombosis and secondary pulmonary embolus. Anticoagulation therapy in children with IBD with active disease appears to be safe.
Funding Agencies
Kids Dig Health Funding from McMaster Children’s Hospital, McMaster University
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Affiliation(s)
- Z Ding
- Division of Gastroenterology, Hepatology & Nutrition, McMaster Children’s Hospital, Hamilton, ON, Canada
| | - M Sherlock
- Division of Gastroenterology, Hepatology & Nutrition, McMaster Children’s Hospital, Hamilton, ON, Canada
| | - M Zachos
- Division of Gastroenterology, Hepatology & Nutrition, McMaster Children’s Hospital, Hamilton, ON, Canada
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Guo F, Liu Y, Ding Z, Zhang C, Liu Z, Fan J. Supplemental iodine-containing prenatal multivitamins use and the potential effects on pregnancy outcomes in a mildly iodine-deficient region. J Endocrinol Invest 2021; 44:443-452. [PMID: 32514901 DOI: 10.1007/s40618-020-01321-6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 06/01/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE The use and contribution of prenatal multivitamins (PMV) as iodine source for pregnant women in China, especially in mildly iodine-deficient region, have not been well studied. This study aimed to explore the association between PMV intake during pregnancy and thyroid function in mothers and newborns. METHODS We performed a study involving women with a history of taking PMV during pregnancy between January 2013 and October 2015, in Shanghai, a mildly iodine-deficient region. Maternal thyroid function in early and late pregnancy, and neonatal TSH on postnatal d 3 were obtained from medical records. We compared the outcomes in pregnant women who took exclusively iodine-containing PMV (I + PMV) with those who took exclusively non-contained PMV (I- PMV). Propensity score matching (PSM) was used to identify women with similar baseline characteristics. RESULTS After PSM, 1280 women in I + PMV and 2560 in I- PMV had similar propensity scores and were included in the analyses. Introduction of I + PMV to women was associated with slightly higher maternal thyroid hormone production (higher maternal FT4, p = 0.01, non-significantly lower TSH, p = 0.79) and lower neonatal TSH levels (p < 0.0001). The frequency of adverse pregnancy outcomes or thyroid dysfunctions did not differ between groups in late pregnancy. Mothers received I + PMV (0.2 SD) had a stronger association of maternal TSH with neonatal TSH than those who received I- PMV (0.1 SD). These effects were only shown in TPOAb-negative mothers, not in TPOAb-positive mothers. CONCLUSION TPOAb-positive women display an impaired iodine transport in thyroid and placenta, and this may explain the lack of changes in maternal and neonatal thyroid parameters with I + PMV supplementation in these women. This phenomenon might suggest that these women require different iodine doses or treatment approach in comparison with TPOAb-negative women.
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Affiliation(s)
- F Guo
- Obstetrical Department, School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University, 910 Hengshan Rd, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Y Liu
- Obstetrical Department, School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University, 910 Hengshan Rd, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Z Ding
- Obstetrical Department, School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University, 910 Hengshan Rd, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - C Zhang
- Obstetrical Department, School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University, 910 Hengshan Rd, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
- Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Z Liu
- Obstetrical Department, School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University, 910 Hengshan Rd, Shanghai, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
- Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - J Fan
- Obstetrical Department, School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University, 910 Hengshan Rd, Shanghai, China.
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.
- Shanghai Municipal Key Clinical Specialty, Shanghai, China.
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Zhou L, Wei H, Ge Y, Ding Z, Shi H. [Consistency of effective orifice area of prosthetic mitral valve estimated using 2-dimensional and 3-dimensional transesophageal echocardiography]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:238-242. [PMID: 33624597 DOI: 10.12122/j.issn.1673-4254.2021.02.11] [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: 11/24/2022]
Abstract
OBJECTIVE To analyze the consistency of effective orifice area (EOA) of prosthetic mitral valve estimated using 2- dimensional (2D) and 3-dimensional (3D) transesophageal echocardiography (TEE). OBJECTIVE This study was conducted among 34 patients undergoing mitral valve replacement surgery in Nanjing First Hospital between March and June in 2019. The diameter of the left ventricular outflow tract (LVOT) measured by 2D-TEE was used to calculate the cross sectional area of LVOT (CSALVOT). In 3D-TEE method, LVOT area was measured directly by planimetry on an enface view. The EOAs of the prosthetic mitral valve were calculated for both methods using the continuity equation. Bland-Altman plot consistency test was used to analyze the consistency between the two sets of EOA results, and linear regression analysis was used to analyze their correlation. OBJECTIVE The EOA of the prosthetic mitral valve differed significantly between 2D method and 3D method (2.22±0.71 cm2 vs 2.35±0.70 cm2, P < 0.001) with a mean difference of -0.14±0.20 cm2 and 95% coherence boundaries of (-0.53, 0.25 cm2). The regression equation for EOA-3D and EOA-2D is y=0.27 + 0.94x, showing a good correlation between the two methods. OBJECTIVE EOA estimation of the prosthetic mitral valve using 2D and 3D TEE has a good consistency, and the results estimated by the 2D method are slightly lower by about 6% than those by the 3D method.
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Affiliation(s)
- L Zhou
- Department of Anesthesiology, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou 213003, China
| | - H Wei
- Department of Anesthesiology, Nanjing First Hospital Affiliated to Nanjing Medical University, Nanjing 210006, China
| | - Y Ge
- Department of Anesthesiology, Nanjing First Hospital Affiliated to Nanjing Medical University, Nanjing 210006, China
| | - Z Ding
- Department of Anesthesiology, First Affiliated Hospital to Nanjing Medical University, Nanjing 210029, China
| | - H Shi
- Department of Anesthesiology, Nanjing First Hospital Affiliated to Nanjing Medical University, Nanjing 210006, China
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Jin YD, Ren YR, Gao YX, Zhang L, Ding Z. Hsa_circ_0005075 predicts a poor prognosis and acts as an oncogene in colorectal cancer via activating Wnt/β-catenin pathway. Eur Rev Med Pharmacol Sci 2020; 23:3311-3319. [PMID: 31081084 DOI: 10.26355/eurrev_201904_17693] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Emerging evidence has demonstrated vital regulation of circular RNAs (circRNAs) on tumorigenesis and progression of tumors. Abnormally expressed circRNAs hsa_circ_0005075 (circ_0005075) has been reported in several tumors. In this study, we aimed to explore the expression profiles, prognostic value, and potential function of circ_0005075 in colorectal cancer (CRC) PATIENTS AND METHODS: RT-PCR was used to detect the expression of circ_0005075 in both CRC tissues and cell lines. The associations between circ_0005075 expression and clinicopathological features and clinical prognosis were statistically analyzed. The effects of circ_0005075 on CRC cells were evaluated by Cell Counting Kit-8 (CCK-8), colony formation assays, Flow cytometer, and transwell assays. Western blot was performed to explore whether circ_0005075 modulated the Wnt/β-catenin pathway. RESULTS We observed that circ_0005075 expression was significantly up-regulated in both CRC tissues and cell lines. Then, clinical assays indicated that high circ_0005075 expression was significantly associated with histology/differentiation, depth of invasion, advanced TNM stage, and shorter overall survival and disease-free survival of CRC patients. Cellular studies indicated that circ_0005075 can enhance the proliferation, migration, and invasion capacities of CRC cells, thereby promoting tumor progression. Further mechanistic investigation showed that circ_0005075 displayed its tumor-promotive roles through activating Wnt/β-catenin pathway. CONCLUSIONS Our present data revealed circ_0005075 as a potential molecular marker and target for the prognosis and treatment of CRC patients.
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Affiliation(s)
- Y-D Jin
- Department of Medical Oncology, Department of Gastrointestinal Surgery; Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China.
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21
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Lu W, Qi G, Ding Z, Li X, Qi W, He F. Clinical efficacy of acellular dermal matrix for plastic periodontal and implant surgery: a systematic review. Int J Oral Maxillofac Surg 2020; 49:1057-1066. [DOI: 10.1016/j.ijom.2019.12.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 12/02/2019] [Accepted: 12/12/2019] [Indexed: 11/24/2022]
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22
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Young E, Ding Z, Kapke A, Houseal D, Pearson J, Turenne M. ESRD QIP Payment Reductions Are Associated with Mortality, Utilization, and Cost. Health Serv Res 2020. [DOI: 10.1111/1475-6773.13467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- E. Young
- Arbor Research Collaborative for Health Ann Arbor MI United States
| | - Z. Ding
- Arbor Research Collaborative for Health Ann Arbor MI United States
| | - A. Kapke
- Arbor Research Collaborative for Health Ann Arbor MI United States
| | - D. Houseal
- Centers for Medicare and Medicaid Services Baltimore MD United States
| | - J. Pearson
- Arbor Research Collaborative for Health Ann Arbor MI United States
| | - M. Turenne
- Arbor Research Collaborative for Health Ann Arbor MI United States
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23
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Ding Z, Deng C, Wang Z, Liu L, Ma X, Huang J, Wang X, Xuan M, Xie H. Comparison of contrast-enhanced ultrasound and contrast-enhanced computed tomography for the diagnosis of cervical lymph node metastasis in squamous cell carcinoma of the oral cavity. Int J Oral Maxillofac Surg 2020; 50:294-301. [PMID: 32739248 DOI: 10.1016/j.ijom.2020.07.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 04/29/2020] [Accepted: 07/09/2020] [Indexed: 02/08/2023]
Abstract
Early detection of cervical lymph node metastasis (CLNM) from squamous cell carcinoma (SCC) of the oral cavity remains challenging. This prospective study was performed to evaluate the ability of contrast-enhanced ultrasound (CEUS) to detect CLNM from oral cavity SCC. Additionally, its diagnostic value was compared with that of contrast-enhanced computed tomography (CECT). Forty-eight consecutive patients with SCC of the oral cavity were enrolled. All subjects were examined preoperatively with both CEUS and CECT. Subsequently, neck dissections were performed for these patients, and cervical lymph nodes separated from the surgical specimens were assessed histologically. The diagnostic performance of these two examinations was compared based on the results of histopathology. The sensitivity, specificity, accuracy, positive predictive value, negative predictive value, and Youden index for CEUS and CECT were 69.39% vs. 44.90%, 94.71% vs. 97.12%, 89.88%% vs. 87.16%, 75.56% vs. 78.57%, 92.92% vs. 88.21%, and 64.10% vs. 42.02%, respectively. A significant difference was observed in terms of sensitivity (P=0.024) and Youden index (rate difference 22.08%, 95% confidence interval 2.72-41.44%). Therefore, CEUS appears to be a promising diagnostic tool that is superior to CECT for detecting CLNM from SCC of the oral cavity, with a higher sensitivity.
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Affiliation(s)
- Z Ding
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Department of Head and Neck Oncology Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - C Deng
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Department of Head and Neck Oncology Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Z Wang
- Department of Ultrasound, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - L Liu
- Department of Radiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - X Ma
- Department of Biotherapy, West China Hospital and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - J Huang
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Department of Head and Neck Oncology Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - X Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Department of Head and Neck Oncology Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - M Xuan
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Department of Head and Neck Oncology Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
| | - H Xie
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Department of Head and Neck Oncology Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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Lin H, Sun Y, Li M, Zhan Y, Lin L, Ding Z, Han Y. Sex modulates the apolipoprotein E ε4 effect on white matter and cortical functional connectivity in individuals with amnestic mild cognitive impairment. Eur J Neurol 2020; 27:1415-1421. [PMID: 32304148 DOI: 10.1111/ene.14226] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 03/18/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND PURPOSE Recent studies from the Alzheimer's Disease Neuroimaging Initiative show that, in the USA, 75% of patients with Alzheimer's disease are female. To date, there have rarely been any attempts to analyze data by sex or gender, which limits the potential for discovering the effects of sex or gender on disease. Little evidence is available regarding the effect of gender and apolipoprotein E (APOE) ε4 on white matter (WM) connection from the functional perspective due to the lack of appropriate techniques for detecting blood-oxygen-level-dependent signals in WM. METHODS We took advantage of a new framework known as functional tensor imaging to investigate the effect of sex and APOEε4 on WM cortical functional connectivity throughout the brain. RESULTS In a group of female patients with amnestic mild cognitive impairment, we found a significantly reduced functional connectivity in the left posterior limb of the internal capsule, left superior fronto-occipital fasciculus, bilateral temporopolar area and right somatosensory association cortex in APOEε4 carriers in contrast to non-carriers. We also found a significant APOEε4 by sex interaction effect on the right somatosensory association cortex, left temporopolar area and left superior temporal gyrus. The clinical Montreal Cognitive Assessment score was significantly negatively associated with the right somatosensory association cortex with APOEε4 by sex interaction in males. CONCLUSIONS These results indicate that increased APOE-related risk in women may be associated with decreased activity in both gray matter and WM in patients with amnestic mild cognitive impairment compared with men. The finding suggests accounting for sex differences in neuroimaging biomarkers, diagnostics and treatment strategy.
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Affiliation(s)
- H Lin
- Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Y Sun
- Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - M Li
- Vanderbilt University Institute of Imaging Science, Vanderbilt University, Nashville, TN, USA.,Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Y Zhan
- School of Mechanical, Electrical and Information Engineering, Shandong University, Jinan, China
| | - L Lin
- Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Z Ding
- Vanderbilt University Institute of Imaging Science, Vanderbilt University, Nashville, TN, USA.,Department of Electrical Engineering and Computer Science, Vanderbilt University, Nashville, TN, USA.,Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Y Han
- Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China.,National Clinical Research Center for Geriatric Disorders, Beijing, China.,Center of Alzheimer's Disease, Beijing Institute for Brain Disorders, Beijing, China
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Chen LZ, Ding Z, Zhang Y, He ST, Wang XH. MiR-203 over-expression promotes prostate cancer cell apoptosis and reduces ADM resistance. Eur Rev Med Pharmacol Sci 2020; 24:2784. [PMID: 32271394 DOI: 10.26355/eurrev_202003_20637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The article "MiR-203 over-expression promotes prostate cancer cell apoptosis and reduces ADM resistance, by Chen LZ, Ding Z, Zhang Y, He ST, Wang XH, published in Eur Rev Med Pharmacol Sci. 2018 Jun;22(12):3734-3741. DOI: 10.26355/eurrev_201806_15253. PMID: 29949147" has been withdrawn from the authors. The Publisher apologizes for any inconvenience this may cause.
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Affiliation(s)
- L-Z Chen
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
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26
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Xu F, Zhang YC, Hu H, Xu M, Huang MF, Qian Q, Jiang CQ, Ding Z. [Analysis on the efficacy and safety of reconstruction of mesenteric superior and inferior artery to increase the blood supply of ileal type D pouch]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:83-86. [PMID: 31958937 DOI: 10.3760/cma.j.issn.1671-0274.2020.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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27
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Zhou Y, Jiang CQ, Qian Q, Zhang W, Wang XW, Zhang L, Yu XQ, Ding Z, Gong ZL, You SP. [A rare case of spontaneous transvaginal evisceration]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:1085-1086. [PMID: 31770841 DOI: 10.3760/cma.j.issn.1671-0274.2019.11.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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28
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Chen LZ, Ding Z, Zhang Y, He ST, Wang XH. MiR-203 over-expression promotes prostate cancer cell apoptosis and reduces ADM resistance. Eur Rev Med Pharmacol Sci 2019; 22:3734-3741. [PMID: 29949147 DOI: 10.26355/eurrev_201806_15253] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Extra-cellular signal regulated kinase (ERK)/mitogen activated protein kinase (MAPK) signaling pathway is widely involved in cell proliferation, apoptosis, and drug resistance. MAPK kinase 1 (MEK1) is the upstream protein kinase of ERK that can activate ERK/MAPK signaling pathway. microRNA 203 (MiR-203) down-regulation is found to be associated with prostate cancer pathogenesis. Bioinformatics analysis showed the complementary targeted relationship between miR-203 and the 3'-UTR of MEK1 mRNA. This study explored the role of miR-203 in regulating prostate cancer cell proliferation, apoptosis, and ADM resistance through affecting MEK1 expression. MATERIALS AND METHODS Dual luciferase assay confirmed the targeted relationship between miR-203 and MEK1. MiR-203, MEK1, p-ERK1/2, and B cell lymphoma 2 (Bcl-2) expressions were compared in normal prostate epithelial cells PrEC, prostate cancer cells PC-3M, and drug resistance cells PC-3M/ADM. PC-3M, PC-3M/ADM cell apoptosis and proliferation were detected by using flow cytometry under ADM treatment at IC50 concentration of PC-3M cells. PC-3M cells were cultured in vitro and divided into four groups, including microRNA-normal control (miR-NC), miR-203 mimic, small interfere NC (si-NC), and si-MEK1. RESULTS MiR-203 targeted and inhibited MEK1 expression. MiR-203 levels and cell apoptosis were significantly lower, while MEK1, p-ERK1/2, Bcl-2, and cell proliferation were significantly higher in PC-3M/ADM cells compared to the PC-3M cells. MiR-203 mimic and/or si-MEK1 transfection significantly reduced MEK1, p-ERK1/2, and Bcl-2 levels, attenuated cell proliferation, induced cell apoptosis, and decreased drug resistance. CONCLUSIONS MiR-203 elevation suppressed prostate cancer PC-3M cell proliferation, promoted apoptosis, and weakened ADM resistance through targeted inhibiting MEK1 expression to alleviate ERK/MAPK signaling pathway and Bcl-2 expression.
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Affiliation(s)
- L-Z Chen
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China.
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Qin Y, Jiang L, Li Y, Ren L, Wang Y, Gong Y, Peng F, Zhu J, Ding Z, Liu Y, Yu M, Lu Y, Huang M. PD-L1 expression affect the efficacy of pemetrexed maintenance therapy in real-world patients with advanced non-squamous NSCLC. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz063.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Huberman S, Duncan RA, Chen K, Song B, Chiloyan V, Ding Z, Maznev AA, Chen G, Nelson KA. Observation of second sound in graphite at temperatures above 100 K. Science 2019; 364:375-379. [PMID: 30872535 DOI: 10.1126/science.aav3548] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 01/27/2019] [Accepted: 03/04/2019] [Indexed: 01/24/2023]
Abstract
Wavelike thermal transport in solids, referred to as second sound, is an exotic phenomenon previously limited to a handful of materials at low temperatures. The rare occurrence of this effect restricted its scientific and practical importance. We directly observed second sound in graphite at temperatures above 100 kelvins by using time-resolved optical measurements of thermal transport on the micrometer-length scale. Our experimental results are in qualitative agreement with ab initio calculations that predict wavelike phonon hydrodynamics. We believe that these results potentially indicate an important role of second sound in microscale transient heat transport in two-dimensional and layered materials in a wide temperature range.
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Affiliation(s)
- S Huberman
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - R A Duncan
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - K Chen
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - B Song
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - V Chiloyan
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Z Ding
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - A A Maznev
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - G Chen
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - K A Nelson
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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Jiang T, Li W, Lin D, Wang J, Liu F, Ding Z. Imaging features of metanephric adenoma and their pathological correlation. Clin Radiol 2019; 74:408.e9-408.e17. [PMID: 30803811 DOI: 10.1016/j.crad.2019.01.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 08/13/2018] [Accepted: 01/23/2019] [Indexed: 11/17/2022]
Abstract
AIM To analyse the imaging features of metanephric adenoma (MA) and their pathological correlation. MATERIALS AND METHODS The imaging findings in 11 patients with MA were studied retrospectively. Ultrasonography (US), computed tomography (CT), and magnetic resonance imaging (MRI) findings were studied in seven, 11, and six patients, respectively. The enhancement pattern, attenuation, lesion location, size, cystic or solid appearance, capsule sign, and presence of calcifications were evaluated. RESULTS On ultrasonography, MA presented as hypoechoic (4/7), slightly hyperechoic (1/7), isoechoic (2/7), and with a clear boundary. Unenhanced CT showed unclear boundaries (11/11), homogeneous isodensity (8/11), with calcification (1/11), necrosis (1/11), and heterogeneous hyperattenuation (1/11). Mean CT attenuation values on unenhanced and enhanced CT (cortical phase, corticomedullary phase, and excretory phase) were 38.87±6.66, 55.71±17.74, 67.77±16.86, and 65.62±15.99 HU, respectively. The degree of enhancement of the lesions in each phase was statistically significantly lower than that of the surrounding normal renal parenchyma (p=0.00). The pattern of enhancement of the solid component was slight and gradual enhancement (9/11). The tumour was located entirely within the renal medulla in nine cases, and two cases demonstrated an exophytic pattern. All tumours showed a clear boundary on enhanced CT, but capsules were not found. The mean greatest tumour diameter was 3.5 cm. MA showed markedly hyperintense on the diffusion-weighted MRI sequence (DWI) and delayed enhancement of the tumour capsule on enhanced MRI. CONCLUSIONS Imaging features of MA are usually solid and hypovascular, and show prolonged, and homogeneous mild enhancement that is less than that of the surrounding normal renal parenchyma in all phases. MA is markedly hyperintense on DWI.
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Affiliation(s)
- T Jiang
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, 266555, China
| | - W Li
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, 266555, China.
| | - D Lin
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao, 266555, China
| | - J Wang
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, 266555, China
| | - F Liu
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, 266555, China
| | - Z Ding
- Department of Ultrasound, The Affiliated Hospital of Qingdao University, Qingdao, 266555, China
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Ding Z, Xu F, Tang J, Li G, Jiang P, Tang Z, Wu H. Physcion 8-O-β-glucopyranoside prevents hypoxia-induced epithelial-mesenchymal transition in colorectal cancer HCT116 cells by modulating EMMPRIN. Neoplasma 2019; 63:351-61. [PMID: 26925795 DOI: 10.4149/303_150723n405] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Epithelial-mesenchymal transition (EMT) is considered as the most important mechanism that underlies the initiation of cancer metastasis. Here we report that Physicon 8-O-β-glucopyranoside (PG), a major active ingredient from a traditional Chinese herbal medicine Rumex japonicus Houtt, is capable of preventing human colorectal cancer cells from hypoxia-induced EMT. The treatment of the cells with PG reversed the EMT-related phenotype that has the morphological changes, down-regulation of E-cadherin, and hypoxia-induced cell migration and invasion. The effect was mediated at least in part by inhibiting the mRNA and protein expressions of EMMPRIN via modulation of PTEN/Akt/HIF-1α pathway. In addition, we found that PG-mediated prevention of EMT involved blockade of the hypoxia-induced up-regulation of Snail, Slug and Twist. In summary, this study showed that PG can prevent EMT induced by hypoxia, the environment that commonly exists in the center of a solid tumor. Given the low toxicity of PG to the healthy tissues, our study suggests that PG can serve as a safe therapeutic agent for suppressing cancer metastasis.
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Huang M, Gong Y, Zhu J, Qin Y, Peng F, Ren L, Ding Z, Liu Y, Wang Y, Lu Y. P066 A Phase I Study of Apatinib Combined with Pemetrexed and Carboplatin in Untreated EGFR-Negative Stage IV Non-Squamous NSCLC. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.10.081] [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: 10/27/2022]
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Luo J, Wang X, Ma F, Kang G, Ding Z, Ye C, Pan Y, Zhao Y, Hong S, Chen J, Xi J, Wen S, Lin Y, Li X, Qiu L, Yang X, Li G, Yang J, Sun Q. Long-term immunogenicity and immune persistence of live attenuated and inactivated hepatitis a vaccines: a report on additional observations from a phase IV study. Clin Microbiol Infect 2018; 25:1422-1427. [PMID: 30496870 DOI: 10.1016/j.cmi.2018.11.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 10/24/2018] [Accepted: 11/03/2018] [Indexed: 12/20/2022]
Abstract
Both live attenuated (HA-L) and inactivated (HA-I) hepatitis A vaccine were licensed for routine use in China. Although phase 1, 2 and 3 clinical studies of both vaccines have been completed, further systematic evaluation of their immunogenicity and immunological persistence under phase 4 clinical studies in a wide range of conditions and involving large populations is necessary. A phase IV clinical trial (NCT02601040) was performed in 9000 participants over 18 months of age. Geometric mean concentrations (GMCs) and seroconversion rates (SRs) were compared at five time points during 3 years for 1800 individuals among them. The SRs of HA-L and HA-I were 98.08% (95% CI 95.59%-99.38%) and 99.64% (95% CI 98.93%-100.00%) respectively 28 days after administration of the first dose, and remained at 97.07% (95% CI 94.31%-98.73%) or above and 96.73% (95% CI 94.07%-98.42%) or above respectively during the following 3 years. The GMCs for both the HA-L and HA-I groups showed that both vaccines elicited high anti-HAV titres, considerably more than the threshold of protection needed against HAV infection in humans, and these titres were sustained. Hence, both HA-I and HA-L vaccines could provide an excellent long-term protective effect, and supported the routine use of both vaccines.
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Affiliation(s)
- J Luo
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China; Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China; Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Kunming, China; Kunming Medical University Haiyuan College, Kunming, China
| | - X Wang
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China; Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China; Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Kunming, China
| | - F Ma
- Jiangsu Provincial Centre of Disease Control and Prevention, Nanjing, China
| | - G Kang
- Jiangsu Provincial Centre of Disease Control and Prevention, Nanjing, China
| | - Z Ding
- Yunnan Provincial Centre of Disease Control and Prevention, Kunming, Yunnan Province, China
| | - C Ye
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China; Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China; Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Kunming, China; Kunming Medical University, Kunming, China
| | - Y Pan
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China; Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China; Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Kunming, China
| | - Y Zhao
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China; Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China; Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Kunming, China
| | - S Hong
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China; Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China; Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Kunming, China; Kunming Medical University, Kunming, China
| | - J Chen
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China; Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China; Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Kunming, China
| | - J Xi
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China; Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China; Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Kunming, China
| | - S Wen
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China; Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China; Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Kunming, China
| | - Y Lin
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China; Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China; Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Kunming, China
| | - X Li
- The Affiliated Children's Hospital of Kunming Medical University, Kunming, China
| | - L Qiu
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China; The Affiliated Children's Hospital of Kunming Medical University, Kunming, China
| | - X Yang
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China; Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China; Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Kunming, China
| | - G Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China; Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China; Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Kunming, China
| | - J Yang
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China; Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China; Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Kunming, China.
| | - Q Sun
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, China; Yunnan Key Laboratory of Vaccine Research and Development on Severe Infectious Diseases, Kunming, China; Yunnan Provincial Key Laboratory of Vector-borne Diseases Control and Research, Kunming, China.
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35
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Alberts M, Lin JH, Chen YW, Ding Z, Bisht D, Kogan E, Twyman K, Milentijevic D. P3847Risk of stroke overall and by stroke severity among newly diagnosed non-valvular atrial fibrillation patients initiating treatment with rivaroxaban versus warfarin. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3847] [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] [Indexed: 11/14/2022] Open
Affiliation(s)
- M Alberts
- Hartford HealthCare, Hartford, United States of America
| | - J H Lin
- Janssen Scientific Affairs, LLC, Raritan, United States of America
| | - Y.-W Chen
- Janssen Scientific Affairs, LLC, Raritan, United States of America
| | - Z Ding
- Janssen Scientific Affairs, LLC, Raritan, United States of America
| | - D Bisht
- Mu Sigma Business Solutions Pvt. Ltd., Bengaluru, India
| | - E Kogan
- Janssen Research and Development, LLC, Raritan, United States of America
| | - K Twyman
- Janssen Research and Development, LLC, Raritan, United States of America
| | - D Milentijevic
- Janssen Scientific Affairs, LLC, Raritan, United States of America
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36
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Ding Z, Wang K, Li J, Tan Q, Tan W, Guo G. Association between glutathione S‐transferase gene M1 and T1 polymorphisms and chronic obstructive pulmonary disease risk: A meta‐analysis. Clin Genet 2018; 95:53-62. [PMID: 29704242 DOI: 10.1111/cge.13373] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 04/23/2018] [Accepted: 04/23/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Z. Ding
- Department of Respiratory MedicineWeifang People's Hospital Weifang China
| | - K. Wang
- Department of Respiratory MedicineWeifang People's Hospital Weifang China
| | - J. Li
- Department of Respiratory MedicineWeifang People's Hospital Weifang China
| | - Q. Tan
- Department of Respiratory MedicineWeifang People's Hospital Weifang China
| | - W. Tan
- Department of Respiratory MedicineWeifang People's Hospital Weifang China
| | - G. Guo
- Department of Respiratory MedicineWeifang People's Hospital Weifang China
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37
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Zhou L, Jiang M, Shen H, You T, Ding Z, Cui Q, Ma Z, Yang F, Xie Z, Shi H, Su J, Cao L, Lin J, Yin J, Dai L, Wang H, Wang Z, Yu Z, Ruan C, Xia L. Clinical and molecular insights into Glanzmann's thrombasthenia in China. Clin Genet 2018; 94:213-220. [PMID: 29675921 DOI: 10.1111/cge.13366] [Citation(s) in RCA: 7] [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] [Received: 03/06/2018] [Revised: 04/08/2018] [Accepted: 04/09/2018] [Indexed: 12/19/2022]
Abstract
Glanzmann's thrombasthenia (GT) is a rare bleeding disorder characterized by spontaneous mucocutaneous bleeding. The disorder is caused by quantitative or qualitative defects in integrin αIIbβ3 (encoded by ITGA2B and ITGB3) on the platelet and is more common in consanguineous populations. However, the prevalence rate and clinical characteristics of GT in non-consanguineous populations have been unclear. We analyzed 97 patients from 93 families with GT in the Han population in China. This analysis showed lower consanguinity (18.3%) in Han patients than other ethnic populations in GT-prone countries. Compared with other ethnic populations, there was no significant difference in the distribution of GT types. Han females suffered more severe bleeding and had a poorer prognosis. We identified a total of 43 different ITGA2B and ITGB3 variants, including 25 previously unidentified, in 45 patients. These variants included 14 missense, 4 nonsense, 4 frameshift, and 3 splicing site variants. Patients with the same genotype generally manifested the same GT type but presented with different bleeding severities. This suggests that GT clinical phenotype does not solely depend on genotype. Our study provides an initial, yet important, clinical and molecular characterization of GT heterogeneity in China.
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Affiliation(s)
- L Zhou
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Hematology department, Affiliated Hospital of Nantong University, Nantong, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - M Jiang
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - H Shen
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - T You
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Z Ding
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Q Cui
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Z Ma
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - F Yang
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Z Xie
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - H Shi
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - J Su
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - L Cao
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - J Lin
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - J Yin
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - L Dai
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - H Wang
- Department of Pediatrics/Section of Genetics, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Z Wang
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Z Yu
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - C Ruan
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - L Xia
- Key Laboratory of Thrombosis & Hemostasis of Ministry of Health, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China.,Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma
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38
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Wang QQ, Yu Y, Li YH, Ding Z, Chen XD. [Evaluation the impact of community intervention on heat wave in Nanjing, China]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:188-190. [PMID: 29429276 DOI: 10.3760/cma.j.issn.0253-9624.2018.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- Q Q Wang
- Jiangsu Provincial Center for Disease Control and Prevention, Jiangsu Province, Nanjing 210009, China
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39
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Maddox SA, Kilaru V, Shin J, Jovanovic T, Almli LM, Dias BG, Norrholm SD, Fani N, Michopoulos V, Ding Z, Conneely KN, Binder EB, Ressler KJ, Smith AK. Estrogen-dependent association of HDAC4 with fear in female mice and women with PTSD. Mol Psychiatry 2018; 23:658-665. [PMID: 28093566 PMCID: PMC5513798 DOI: 10.1038/mp.2016.250] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 10/10/2015] [Accepted: 11/22/2016] [Indexed: 12/13/2022]
Abstract
Women are at increased risk of developing post-traumatic stress disorder (PTSD) following a traumatic event. Recent studies suggest that this may be mediated, in part, by circulating estrogen levels. This study evaluated the hypothesis that individual variation in response to estrogen levels contributes to fear regulation and PTSD risk in women. We evaluated DNA methylation from blood of female participants in the Grady Trauma Project and found that serum estradiol levels associates with DNA methylation across the genome. For genes expressed in blood, we examined the association between each CpG site and PTSD diagnosis using linear models that adjusted for cell proportions and age. After multiple test correction, PTSD associated with methylation of CpG sites in the HDAC4 gene, which encodes histone deacetylase 4, and is involved in long-term memory formation and behavior. DNA methylation of HDAC4 CpG sites were tagged by a nearby single-nucleotide polymorphism (rs7570903), which also associated with HDAC4 expression, fear-potentiated startle and resting-state functional connectivity of the amygdala in traumatized humans. Using auditory Pavlovian fear conditioning in a rodent model, we examined the regulation of Hdac4 in the amygdala of ovariectomized (OVX) female mice. Hdac4 messenger RNA levels were higher in the amygdala 2 h after tone-shock presentations, compared with OVX-homecage control females. In naturally cycling females, tone-shock presentations increased Hdac4 expression relative to homecage controls for metestrous (low estrogen) but not the proestrous (high estrogen) group. Together, these results support an estrogenic influence of HDAC4 regulation and expression that may contribute to PTSD in women.
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Affiliation(s)
- S A Maddox
- Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA,McLean Hospital, Harvard Medical School, Belmont, MA, USA
| | - V Kilaru
- Department of Psychiatry, School of Medicine, Emory University, Atlanta, GA, USA
| | - J Shin
- Center for Advanced Brain Imaging (CABI), Georgia Institute of Technology, Atlanta, GA, USA
| | - T Jovanovic
- Department of Psychiatry, School of Medicine, Emory University, Atlanta, GA, USA
| | - L M Almli
- Department of Psychiatry, School of Medicine, Emory University, Atlanta, GA, USA
| | - B G Dias
- Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA,Department of Psychiatry, School of Medicine, Emory University, Atlanta, GA, USA
| | - S D Norrholm
- Department of Psychiatry, School of Medicine, Emory University, Atlanta, GA, USA,Atlanta VA Medical Center, Atlanta, GA, USA
| | - N Fani
- Department of Psychiatry, School of Medicine, Emory University, Atlanta, GA, USA
| | - V Michopoulos
- Department of Psychiatry, School of Medicine, Emory University, Atlanta, GA, USA
| | - Z Ding
- Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA
| | - K N Conneely
- Department of Human Genetics, Emory University, Atlanta, GA, USA
| | - E B Binder
- Department of Psychiatry, School of Medicine, Emory University, Atlanta, GA, USA,Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany
| | - K J Ressler
- Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA,McLean Hospital, Harvard Medical School, Belmont, MA, USA,Department of Psychiatry, School of Medicine, Emory University, Atlanta, GA, USA
| | - A K Smith
- Department of Psychiatry, School of Medicine, Emory University, Atlanta, GA, USA,Department of Gynecology and Obstetrics, School of Medicine, Emory University, Atlanta, GA, USA,Department of Gynecology and Obstetrics, School of Medicine, Emory University, 101 Woodruff Circle NE, Suite 4217, Atlanta, GA 30322, USA. E-mail:
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Abstract
BACKGROUND Studies from high-income countries report moderate-to-strong positive associations between alcohol use disorder (AUD) and other mental disorders, but there is little evidence about the comorbidity of AUD from low-and-middle-income countries. METHODS A sample of 74 752 adults from five provinces that account for >12% of China's adult population was screened using the General Health Questionnaire, and the Structured Clinical Interview for DSM-IV was administered by psychiatrists to a subsample of 9619 males. The associations between AUD and other mental disorders at each site and the characteristics of men with AUD with and without comorbid mental disorders were estimated using logistic regression and summarized across sites using meta-analysis. Generalized estimation equations estimated the associations between the clinical features of alcohol dependence and comorbidity. RESULTS Robust inverse associations were found between current AUD and any mood disorder (adjusted OR = 0.6, 95% CI = 0.4-0.8) and any anxiety disorder (OR = 0.5, 95% CI = 0.3-1.0). Compared with men without AUD, men with AUD without comorbid disorders were more likely to be middle-aged, to be currently married, and to have higher family incomes. Men with comorbid AUD and other disorders were more likely to have the clinical features of alcohol dependence than men with AUD without comorbid disorders. CONCLUSIONS Inverse associations between AUD and other mental disorders and the higher social status of men with AUD than men without AUD found in this large, representative sample of community-dwelling Chinese males highlight the importance of considering the local substance-use culture when designing clinical or preventive interventions for addictive conditions.
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Affiliation(s)
- H G Cheng
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine,China
| | - M R Phillips
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine,China
| | - X Li
- WHO Collaborating Center for Research and Training in Suicide Prevention, Beijing Hui Long Guan Hospital,Beijing,China
| | - J Zhang
- Shandong Provincial Mental Health Center,Jinan City,Shandong Province,China
| | - Q Shi
- Tong De Hospital of Zhejiang Province,Hangzhou City,Zhejiang Province,China
| | - G Xu
- Tianjin Mental Health Center,Tianjin,China
| | - Z Song
- The 3rd People's Hospital of Qinghai Province,Xining City,Qinghai Province,China
| | - Z Ding
- Tianshui City Mental Hospital,Tianshui City,Gansu Province,China
| | - S Pang
- Qingdao Mental Health Centre,Qingdao City,Shandong Province,China
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41
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Liu Y, Xia X, Du W, Zhang Y, Xu J, Gong Y, Zhu J, Ding Z, Peng F, Huang M, Xu Y, Wan J, Ren L, Lu Y, Han B, Wang Y. PUB047 Efficacy of EGFR-TKI for Lung Adenosquamous Cell Carcinoma Harboring EGFR Mutation. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1910] [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]
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42
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Jonasch E, Fuller G, McCutcheon I, Ding Z, Zhou L, Liu X, Kong W, Powell R, Park IY, Tannir N, Rathmell W, Dong B, Matin S, Tong X, Huang Y, Tong P, Wang J, Walker C, Sun M. The role of hepatocyte nuclear factor 1 homeobox B (HNF1B) loss in chromophobe RCC (ChRCC) development. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx391.022] [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: 11/14/2022] Open
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43
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Li Y, Liu S, Liu D, Sun S, Kuang C, Ding Z, Liu X. Image scanning fluorescence emission difference microscopy based on a detector array. J Microsc 2017; 266:288-297. [PMID: 28199004 DOI: 10.1111/jmi.12538] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 11/14/2016] [Revised: 01/13/2017] [Accepted: 01/25/2017] [Indexed: 12/25/2022]
Abstract
We propose a novel imaging method that enables the enhancement of three-dimensional resolution of confocal microscopy significantly and achieve experimentally a new fluorescence emission difference method for the first time, based on the parallel detection with a detector array. Following the principles of photon reassignment in image scanning microscopy, images captured by the detector array were arranged. And by selecting appropriate reassign patterns, the imaging result with enhanced resolution can be achieved with the method of fluorescence emission difference. Two specific methods are proposed in this paper, showing that the difference between an image scanning microscopy image and a confocal image will achieve an improvement of transverse resolution by approximately 43% compared with that in confocal microscopy, and the axial resolution can also be enhanced by at least 22% experimentally and 35% theoretically. Moreover, the methods presented in this paper can improve the lateral resolution by around 10% than fluorescence emission difference and 15% than Airyscan. The mechanism of our methods is verified by numerical simulations and experimental results, and it has significant potential in biomedical applications.
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Affiliation(s)
- Y Li
- State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou, China
| | - S Liu
- State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou, China
| | - D Liu
- State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou, China
| | - S Sun
- State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou, China
| | - C Kuang
- State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou, China.,Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, China
| | - Z Ding
- State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou, China
| | - X Liu
- State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou, China.,Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, China
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44
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Hasanov E, Chen G, Chowdhury P, Weldon J, Ding Z, Jonasch E, Sen S, Walker CL, Dere R. Ubiquitination and regulation of AURKA identifies a hypoxia-independent E3 ligase activity of VHL. Oncogene 2017; 36:3450-3463. [PMID: 28114281 PMCID: PMC5485216 DOI: 10.1038/onc.2016.495] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 11/15/2016] [Accepted: 11/29/2016] [Indexed: 12/18/2022]
Abstract
The hypoxia-regulated tumor-suppressor von Hippel-Lindau (VHL) is an E3 ligase that recognizes its substrates as part of an oxygen-dependent prolyl hydroxylase (PHD) reaction, with hypoxia-inducible factor α (HIFα) being its most notable substrate. Here we report that VHL has an equally important function distinct from its hypoxia-regulated activity. We find that Aurora kinase A (AURKA) is a novel, hypoxia-independent target for VHL ubiquitination. In contrast to its hypoxia-regulated activity, VHL mono-, rather than poly-ubiquitinates AURKA, in a PHD-independent reaction targeting AURKA for degradation in quiescent cells, where degradation of AURKA is required to maintain the primary cilium. Tumor-associated variants of VHL differentiate between these two functions, as a pathogenic VHL mutant that retains intrinsic ability to ubiquitinate HIFα is unable to ubiquitinate AURKA. Together, these data identify VHL as an E3 ligase with important cellular functions under both normoxic and hypoxic conditions.
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Affiliation(s)
- E Hasanov
- Center for Translational Cancer Research, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX, USA.,Department of Basic Oncology, Hacettepe University Cancer Institute, Sihhiye, Ankara, Turkey
| | - G Chen
- Center for Translational Cancer Research, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX, USA
| | - P Chowdhury
- Center for Translational Cancer Research, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX, USA.,Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, USA
| | - J Weldon
- Center for Translational Cancer Research, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX, USA
| | - Z Ding
- Department of Systems Biology, U.T. M.D. Anderson Cancer Center, Houston, TX, USA
| | - E Jonasch
- Department of Genitourinary Medical Oncology, U.T. M.D. Anderson Cancer Center, Houston, TX, USA
| | - S Sen
- Department of Translational Molecular Pathology, U.T. M.D. Anderson Cancer Center, Houston, TX, USA
| | - C L Walker
- Center for Translational Cancer Research, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX, USA.,Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, USA
| | - R Dere
- Center for Translational Cancer Research, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX, USA.,Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, USA
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45
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Ding Z, Li Y, Chen A, Song M, Zhang Y. Punch biopsy guided by both colposcopy and HR-HPV status is more efficient for identification of immediate high-grade squamous intraepithelial lesion or worse among HPV-infected women with atypical squamous cells of undetermined significance. Eur J Obstet Gynecol Reprod Biol 2016; 207:32-36. [PMID: 27816739 DOI: 10.1016/j.ejogrb.2016.10.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Revised: 08/11/2016] [Accepted: 10/10/2016] [Indexed: 11/19/2022]
Abstract
OBJECTIVES To investigate the accuracy of colposcopy for diagnosing high-grade squamous intraepithelial lesion (HSIL) or worse (HSIL+) in human papillomavirus (HPV)-infected patients with atypical squamous cells of undetermined significance (ASCUS) cytology, and determine whether genotyping and viral load quantitation can be useful for detecting immediate HSIL+ risk in these patients. STUDY DESIGN This study included 620 cases with ASCUS and positive for high-risk (HR)-HPV within 1 month before or after cervical cytology at Qilu Hospital between February 2013 and February 2014. Based on the colposcopic impression, lesion-targeted punch biopsy, endocervical curettage biopsy or random cervical punch biopsy in four quadrants was performed on these patients within 1 month. The accuracy of colposcopy for diagnosing HSIL+ was evaluated through comparison with the biopsy results. HR-HPV status determined by Hybrid Capture 2 or HPV genotyping was analysed retrospectively as a possible predictor of HSIL+. RESULTS Agreement between colposcopic impression and cervical pathology was matched perfectly in 89.2% of cases (553/620), and the strength of agreement with the κ statistic was 0.698 (p<0.001). Colposcopy had high specificity (96.9%) but low sensitivity for detecting HSIL+ (67.5%). The risk of HSIL+ was significantly higher in patients with HPV-16 infection (52.3%) than in patients infected with other types of HPV (17.9%, p<0.001). HSIL+ and virus load was correlated at cut-offs (CO) of 50 relative light units (RLU)/CO and 100 RLU/CO (p=0.024 and 0.044, respectively). If considering HPV16 infection or high virus load (at 50 RLU/CO) as a diagnostic standard of HSIL+ when colposcopic impression was negative, sensitivity was improved to 74.7% and 81.0%, respectively. CONCLUSIONS Good agreement was found between colposcopic and pathologic diagnosis. HR-HPV genotyping or virus load is relevant to the detection of HSIL+ among HPV-infected patients with ASCUS cytology. In these patients, biopsies considering HPV-16 infection or virus load ≥50 RLU/CO may be helpful for increasing the HSIL+ detection rate.
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Affiliation(s)
- Z Ding
- Qilu Hospital, Shandong University, Jinan, Shandong, China; The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Y Li
- The Second People's Hospital of Liao Cheng, Liao Cheng, Shandong, China
| | - A Chen
- The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - M Song
- Qingdao Tumour Hospital, Qingdao, Shandong, China
| | - Y Zhang
- Qilu Hospital, Shandong University, Jinan, Shandong, China.
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46
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Deng L, Zhang J, Liu Y, Sun X, Meng M, Zhou X, Zhou L, Li Y, Zou B, Yu M, Xue J, Gong Y, Zhu J, Ding Z, Wang J, Peng F, Wang Y, Huang M, Ren L, Hou M, Lu Y. Failure Pattern of Oligometastatic EGFR-Mutant Non-Small Cell Lung Cancer Treated With Tyrosine Kinase Inhibitors: Implication of Upfront Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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47
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Hongmei L, Huang M, Xu Y, Zhou X, Li J, Wang J, Peng F, Gong Y, Ding Z, Zhu J, Yu P, Li L, Hou M, Ren L, Wang Y, Lu Y. Clinical analysis of continuing crizotinib treatment beyond disease progression in ALK-positive non-small-cell lung cancer patients. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw383.66] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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48
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Chen B, Zhou L, He J, Xiong W, Liu Y, Deng L, Xiang J, Yu Q, Liang M, Zhou X, Ding Z, Huang M, Ren L, Zhu J, Li L, Hou M, Lu Y. Neurocognitive Function and Quality of Life in EGFR-Mutated Non-Small Cell Lung Cancer Patients With Brain Metastases Treated With Icotinib and Whole-Brain Radiation: Results of a Phase 1 Trial. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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49
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Ding Z, Meng Q, Liu H, Yuan S, Zhang F, Sun M, Zhao Y, Shen M, Zhou G, Pan J, Xue H, Wang W. First case of hepatopancreatic necrosis disease in pond-reared Chinese mitten crab, Eriocheir sinensis, associated with microsporidian. J Fish Dis 2016; 39:1043-1051. [PMID: 26850704 DOI: 10.1111/jfd.12437] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 10/14/2015] [Accepted: 10/15/2015] [Indexed: 06/05/2023]
Abstract
An epidemic of hepatopancreatic necrosis disease (HPND) with a high mortality rate (40%-50%) recently occurred in the cultured Chinese mitten crab, Eriocheir sinensis, which is a very important economic crustacean species in China. Histology revealed infection by a microsporidian parasite within the cytoplasm of the epithelial cells of the hepatopancreas. Numerous discrete inclusions in the infected cells and presumably free parasite spores were also observed. By negative staining using electron microscopy, a typical morphology of spores was observed with a protuberant front of the anchoring disc. Infection was confined to the epithelial cells of the hepatopancreas, with no other organ implicated. By sequencing the PCR products using specific primers based on conserved regions of microsporidian small subunit (18S) ribosomal DNA, it was revealed that the parasite from HPND ponds had 99% sequence identity to that of Hepatospora eriocheir. Phylogentic analysis also placed the microsporidian in the same lineage as H. eriocheir. This study reported the first case of widespread infections of H. eriocheir associated with HPND found in the pond-reared Chinese mitten crab, E. sinensis. The description of microsporidian in this important commercial host is fundamental for future consideration of factors affecting stock health and sustainability.
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Affiliation(s)
- Z Ding
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, China
| | - Q Meng
- Jiangsu Key Laboratory for Biodiversity & Biotechnology and Jiangsu Key Laboratory for Aquatic Crustacean Diseases, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - H Liu
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, China
| | - S Yuan
- Jiangsu Agri-animal Husbandry Vocational College, Taizhou, China
| | - F Zhang
- Aquaculture Promotion Centers of Xinghua City, Xinghua, China
| | - M Sun
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, China
| | - Y Zhao
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, China
| | - M Shen
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, China
| | - G Zhou
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, China
| | - J Pan
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, China
| | - H Xue
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, China
| | - W Wang
- Jiangsu Key Laboratory for Biodiversity & Biotechnology and Jiangsu Key Laboratory for Aquatic Crustacean Diseases, College of Life Sciences, Nanjing Normal University, Nanjing, China
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50
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German P, Bai S, Liu XD, Sun M, Zhou L, Kalra S, Zhang X, Minelli R, Scott KL, Mills GB, Jonasch E, Ding Z. Phosphorylation-dependent cleavage regulates von Hippel Lindau proteostasis and function. Oncogene 2016; 35:4973-80. [PMID: 26973240 DOI: 10.1038/onc.2016.40] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 12/03/2015] [Accepted: 01/12/2016] [Indexed: 01/04/2023]
Abstract
Loss of von Hippel Lindau (VHL) protein function is a key driver of VHL diseases, including sporadic and inherited clear cell renal cell carcinoma. Modulation of the proteostasis of VHL, especially missense point-mutated VHL, is a promising approach to augmenting VHL levels and function. VHL proteostasis is regulated by multiple mechanisms including folding, chaperone binding, complex formation and phosphorylation. Nevertheless, many details underlying the regulations of VHL proteostasis are unknown. VHL is expressed as two variants, VHL30 and VHL19. Furthermore, the long-form variant of VHL was often detected as multiple bands by western blotting. However, how these multiple species of VHL are generated and whether the process regulates VHL proteostasis and function are unknown. We hypothesized that the two major species are generated by VHL protein cleavage, and the cleavage regulates VHL proteostasis and subsequent function. We characterized VHL species using genetical and pharmacological approaches and showed that VHL was first cleaved at the N-terminus by chymotrypsin C before being directed for proteasomal degradation. Casein kinase 2-mediated phosphorylation at VHL N-terminus was required for the cleavage. Furthermore, inhibition of cleavage stabilized VHL protein and thereby promoted HIF downregulation. Our study reveals a novel mechanism regulating VHL proteostasis and function, which is significant for identifying new drug targets and developing new therapeutic approaches targeting VHL deficiency in VHL diseases.
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Affiliation(s)
- P German
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - S Bai
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - X-D Liu
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - M Sun
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - L Zhou
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - S Kalra
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - X Zhang
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - R Minelli
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - K L Scott
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - G B Mills
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - E Jonasch
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Z Ding
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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