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Jiang Z, Zeng Z, He H, Li M, Lan Y, Hui J, Bie P, Chen Y, Liu H, Fan H, Xia H. Lycium barbarum glycopeptide alleviates neuroinflammation in spinal cord injury via modulating docosahexaenoic acid to inhibiting MAPKs/NF-kB and pyroptosis pathways. J Transl Med 2023; 21:770. [PMID: 37907930 PMCID: PMC10617163 DOI: 10.1186/s12967-023-04648-9] [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: 04/30/2023] [Accepted: 10/21/2023] [Indexed: 11/02/2023] Open
Abstract
BACKGROUND Lycium barbarum polysaccharide (LBP) is an active ingredient extracted from Lycium barbarum that inhibits neuroinflammation, and Lycium barbarum glycopeptide (LbGp) is a glycoprotein with immunological activity that was purified and isolated from LBP. Previous studies have shown that LbGp can regulate the immune microenvironment, but its specific mechanism of action remains unclear. AIMS In this study, we aimed to explore the mechanism of action of LbGp in the treatment of spinal cord injury through metabolomics and molecular experiments. METHODS SD male rats were randomly assigned to three experimental groups, and after establishing the spinal cord hemisection model, LbGp was administered orally. Spinal cord tissue was sampled on the seventh day after surgery for molecular and metabolomic experiments. In vitro, LbGp was administered to mimic the inflammatory microenvironment by activating microglia, and its mechanism of action in suppressing neuroinflammation was further elaborated using metabolomics and molecular biology techniques such as western blotting and q-PCR. RESULTS In vivo and in vitro experiments found that LbGp can improve the inflammatory microenvironment by inhibiting the NF-kB and pyroptosis pathways. Furthermore, LbGp induced the secretion of docosahexaenoic acid (DHA) by microglia, and DHA inhibited neuroinflammation through the MAPK/NF-κB and pyroptosis pathways. CONCLUSIONS In summary, we hypothesize that LbGp improves the inflammatory microenvironment by regulating the secretion of DHA by microglia and thereby inhibiting the MAPK/NF-κB and pyroptosis pathways and promoting nerve repair and motor function recovery. This study provides a new direction for the treatment of spinal cord injury and elucidates the potential mechanism of action of LbGp.
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Affiliation(s)
- Zhanfeng Jiang
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - Zhong Zeng
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - He He
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - Mei Li
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - Yuanxiang Lan
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - Jianwen Hui
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - Pengfei Bie
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - Yanjun Chen
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - Hao Liu
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
| | - Heng Fan
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China.
| | - Hechun Xia
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China.
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China.
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Song PF, Zhao AB, Hui J, Zeng CG, Wang KR. Radial source velocity estimation based on cross-spectrum equalization accumulation compensation in shallow water. JASA Express Lett 2023; 3:2887652. [PMID: 37125872 DOI: 10.1121/10.0017932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 04/07/2023] [Indexed: 05/03/2023]
Abstract
In the former work, the histogram was effectively used to improve the interference immunity of target velocity estimation based on the cross-spectrum. This paper proposes a new method to eliminate the bias introduced by the histogram and to further improve interference immunity. The equalization window is designed to preserve the cross-spectrum peaks while suppressing the interference peaks. All frequency points are compensated and accumulated to improve the interference immunity. Finally, the simulation and sea trial data verify the effectiveness of the proposed method in this paper.
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Affiliation(s)
- P F Song
- Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, People's Republic of China
| | - A B Zhao
- Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, People's Republic of China
| | - J Hui
- Key Laboratory of Marine Information Acquisition and Security (Harbin Engineering University), Ministry of Industry and Information Technology, Harbin 150001, People's Republic of China
| | - C G Zeng
- College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, People's Republic of , , , ,
| | - K R Wang
- Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, People's Republic of China
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Hui J, Zhu Y, Sze D, Lowe A, Wang D. Abstract No. 272 Selective Hepatic Vein Sampling for Enriched Circulating Tumor Cell Collection in Patients with Liver Dominant Malignancy—Preliminary Results. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.338] [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: 02/27/2023] Open
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Zeng Z, Li M, Jiang Z, Lan Y, Chen L, Chen Y, Li H, Hui J, Zhang L, Hu X, Xia H. Integrated transcriptomic and metabolomic profiling reveals dysregulation of purine metabolism during the acute phase of spinal cord injury in rats. Front Neurosci 2022; 16:1066528. [PMID: 36507345 PMCID: PMC9727392 DOI: 10.3389/fnins.2022.1066528] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/01/2022] [Indexed: 11/24/2022] Open
Abstract
Introduction Spinal cord injury (SCI) results in drastic dysregulation of microenvironmental metabolism during the acute phase, which greatly affects neural recovery. A better insight into the potential molecular pathways of metabolic dysregulation by multi-omics analysis could help to reveal targets that promote nerve repair and regeneration in the future. Materials and methods We established the SCI model and rats were randomly divided into two groups: the acute-phase SCI (ASCI) group (n = 14, 3 days post-SCI) and the sham group with day-matched periods (n = 14, without SCI). In each group, rats were sacrificed at 3 days post-surgery for histology study (n = 3), metabolome sequencing (n = 5), transcriptome sequencing (n = 3), and quantitative real-time polymerase chain reaction (n = 3). The motor function of rats was evaluated by double-blind Basso, Beattie, and Bresnahan (BBB) Locomotor Scores at 0, 1, 2, 3 days post-SCI in an open field area. Then the transcriptomic and metabolomic data were integrated in SCI model of rat to reveal the underlying molecular pathways of microenvironmental metabolic dysregulation. Results The histology of the microenvironment was significantly altered in ASCI and the locomotor function was significantly reduced in rats. Metabolomics analysis showed that 360 metabolites were highly altered during the acute phase of SCI, of which 310 were up-regulated and 50 were down-regulated, and bioinformatics analysis revealed that these differential metabolites were mainly enriched in arginine and proline metabolism, D-glutamine and D-glutamate metabolism, purine metabolism, biosynthesis of unsaturated fatty acids. Transcriptomics results showed that 5,963 genes were clearly altered, of which 2,848 genes were up-regulated and 3,115 genes were down-regulated, and these differentially expressed genes were mainly involved in response to stimulus, metabolic process, immune system process. Surprisingly, the Integrative analysis revealed significant dysregulation of purine metabolism at both transcriptome and metabolome levels in the acute phase of SCI, with 48 differential genes and 16 differential metabolites involved. Further analysis indicated that dysregulation of purine metabolism could seriously affect the energy metabolism of the injured microenvironment and increase oxidative stress as well as other responses detrimental to nerve repair and regeneration. Discussion On the whole, we have for the first time combined transcriptomics and metabolomics to systematically analyze the potential molecular pathways of metabolic dysregulation in the acute phase of SCI, which will contribute to broaden our understanding of the sophisticated molecular mechanisms of SCI, in parallel with serving as a foundation for future studies of neural repair and regeneration after SCI.
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Affiliation(s)
- Zhong Zeng
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, General Hospital of Ningxia Medical University, Yinchuan, China,School of Clinical Medicine, Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Craniocerebral Diseases, Ningxia Medical University, Yinchuan, China
| | - Mei Li
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, General Hospital of Ningxia Medical University, Yinchuan, China,School of Clinical Medicine, Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Craniocerebral Diseases, Ningxia Medical University, Yinchuan, China
| | - Zhanfeng Jiang
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, General Hospital of Ningxia Medical University, Yinchuan, China,School of Clinical Medicine, Ningxia Medical University, Yinchuan, China
| | - Yuanxiang Lan
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, General Hospital of Ningxia Medical University, Yinchuan, China,School of Clinical Medicine, Ningxia Medical University, Yinchuan, China
| | - Lei Chen
- Department of Neurosurgery, The First People’s Hospital of Shizuishan, Shizuishan, China
| | - Yanjun Chen
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, General Hospital of Ningxia Medical University, Yinchuan, China,School of Clinical Medicine, Ningxia Medical University, Yinchuan, China
| | - Hailiang Li
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Craniocerebral Diseases, Ningxia Medical University, Yinchuan, China
| | - Jianwen Hui
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, General Hospital of Ningxia Medical University, Yinchuan, China,School of Clinical Medicine, Ningxia Medical University, Yinchuan, China
| | - Lijian Zhang
- Department of Neurosurgery, Affiliated Hospital of Hebei University, Hebei University, Baoding, China
| | - Xvlei Hu
- Department of Neurosurgery, Shanxi Provincial People’s Hospital, Taiyuan, China
| | - Hechun Xia
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China,Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, General Hospital of Ningxia Medical University, Yinchuan, China,*Correspondence: Hechun Xia,
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Hui LL, Nelson EAS, Deng HB, Leung TY, Ho CH, Chong JSC, Fung GPG, Hui J, Lam HS. The view of Hong Kong parents on secondary use of dried blood spots in newborn screening program. BMC Med Ethics 2022; 23:105. [PMID: 36319979 PMCID: PMC9628108 DOI: 10.1186/s12910-022-00839-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 08/30/2022] [Indexed: 11/05/2022] Open
Abstract
Background Residual dried blood spots (rDBS) from newborn screening programmes represent a valuable resource for medical research, from basic sciences, through clinical to public health. In Hong Kong, there is no legislation for biobanking. Parents’ view on the retention and use of residual newborn blood samples could be cultural-specific and is important to consider for biobanking of rDBS. Objective To study the views and concerns on long-term storage and secondary use of rDBS from newborn screening programmes among Hong Kong Chinese parents. Methods A mixed-method approach was used to study the views and concerns on long-term storage and secondary use of rDBS from newborn screening programmes among Hong Kong Chinese parents of children 0–3 years or expecting parents through focus groups (8 groups; 33 participants) and a survey (n = 1012, 85% mothers) designed with insights obtained from the focus groups. We used framework analysis to summarise the themes as supportive factors, concerns and critical arguments for retention and secondary use of rDBS from focus group discussion. We used multiple logistic regression to assess factors associated with support for retention and secondary use of rDBS in the survey. Results Both in focus groups and survey, majority of parents were not aware of the potential secondary use of rDBS. Overall secondary use of rDBS in medical research was well accepted by a large proportion of Hong Kong parents, even if all potential future research could not be specified in a broad consent. However parents were concerned about potential risks of biobanking rDBS including leaking of data and mis-use of genetic information. Parents wanted to be asked for permission before rDBS are stored and mainly did not accept an “opt-out” approach. The survey showed that parents born in mainland China, compared to Hong Kong born parents, had lower awareness of newborn screening but higher support in biobanking rDBS. Higher education was associated with support in rDBS biobanking only among fathers. Conclusion Long-term storage and secondary use of rDBS from newborn screening for biomedical research and a broad consent for biobanking of rDBS are generally acceptable to Hong Kong parents given their autonomy is respected and their privacy is protected, highlighting the importance of an accountable governance and a transparent access policy for rDBS biobanks.
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Affiliation(s)
- L L Hui
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China.,Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - E A S Nelson
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - H B Deng
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - T Y Leung
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - C H Ho
- Academia Sinica, Taipei, Taiwan
| | - J S C Chong
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - G P G Fung
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - J Hui
- Private paediatrician, Hong Kong SAR, PR China
| | - H S Lam
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
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Thompson PL, Hui J, Beilby J, Palmer LJ, Watts GF, West MJ, Kirby A, Marschner S, Simes RJ, Sullivan DR, White HD, Stewart R, Tonkin AM. Common genetic variants do not predict recurrent events in coronary heart disease patients. BMC Cardiovasc Disord 2022; 22:96. [PMID: 35264114 PMCID: PMC8908687 DOI: 10.1186/s12872-022-02520-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 02/07/2022] [Indexed: 11/15/2022] Open
Abstract
Background It is unclear whether genetic variants identified from single nucleotide polymorphisms (SNPs) strongly associated with coronary heart disease (CHD) in genome-wide association studies (GWAS), or a genetic risk score (GRS) derived from them, can help stratify risk of recurrent events in patients with CHD. Methods Study subjects were enrolled at the close-out of the LIPID randomised controlled trial of pravastatin vs placebo. Entry to the trial had required a history of acute coronary syndrome 3–36 months previously, and patients were in the trial for a mean of 36 months. Patients who consented to a blood sample were genotyped with a custom designed array chip with SNPs chosen from known CHD-associated loci identified in previous GWAS. We evaluated outcomes in these patients over the following 10 years. Results Over the 10-year follow-up of the cohort of 4932 patients, 1558 deaths, 898 cardiovascular deaths, 727 CHD deaths and 375 cancer deaths occurred. There were no significant associations between individual SNPs and outcomes before or after adjustment for confounding variables and for multiple testing. A previously validated 27 SNP GRS derived from SNPs with the strongest associations with CHD also did not show any independent association with recurrent major cardiovascular events. Conclusions Genetic variants based on individual single nucleotide polymorphisms strongly associated with coronary heart disease in genome wide association studies or an abbreviated genetic risk score derived from them did not help risk profiling in this well-characterised cohort with 10-year follow-up. Other approaches will be needed to incorporate genetic profiling into clinically relevant stratification of long-term risk of recurrent events in CHD patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12872-022-02520-0.
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Affiliation(s)
- P L Thompson
- Heart and Vascular Research Institute, Harry Perkins Institute of Medical Research, Faculty of Health and Medical Sciences, Sir Charles Gairdner Hospital, University of Western Australia, Hospital Ave, Perth, Nedlands, WA, 6009, Australia.
| | - J Hui
- Health Department of Western Australia, PathWest, Perth, Australia.,School of Population and Global Health, University of Western Australia, Perth, Australia
| | - J Beilby
- Health Department of Western Australia, PathWest, Perth, Australia.,School of Biomedical Sciences, University of Western Australia, Perth, Australia
| | - L J Palmer
- School of Public Health, University of Adelaide, Adelaide, Australia
| | - G F Watts
- Faculty of Health and Medical Sciences, University of Western Australia, Perth, Australia
| | - M J West
- Faculty of Medicine and Biomedical Sciences, University of Queensland, Brisbane, Australia
| | - A Kirby
- NHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia
| | - S Marschner
- NHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia
| | - R J Simes
- NHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia
| | - D R Sullivan
- Department of Chemical Pathology, Royal Prince Alfred Hospital, Sydney, Australia
| | - H D White
- Green Lane Cardiovascular Service, Auckland City Hospital, Auckland, New Zealand
| | - R Stewart
- Green Lane Cardiovascular Service, Auckland City Hospital, Auckland, New Zealand
| | - A M Tonkin
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
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Tsoi C, Law EKC, Hui J, Chu WCW. Late-onset Urea Cycle Deficiency is an Under-recognised Cause of Metabolic Childhood Encephalopathy: a Case Report. Hong Kong Journal of Radiology 2021. [DOI: 10.12809/hkjr2117082] [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: 11/05/2022] Open
Affiliation(s)
- C Tsoi
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - EKC Law
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - J Hui
- Department of Paediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - WCW Chu
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
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Zhai W, Wang J, He N, Zhou J, Wang J, Xue Y, Yang Z, Chen Y, Hui J, Haung J, Kong W, Haung Y, Xue W. DNA Damage Repair (DDR) gene and VHL concurrent alterations in advanced clear cell Renal Cell Carcinoma (ccRCC) are association with good progression free survival with tyrosine kinase inhibitor therapy. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00923-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Toh W, Zhang S, Wong K, Ren X, Lai R, Lim S, Hui J. MSC exosomes promote osteochondral repair in a translational porcine model. Cytotherapy 2021. [DOI: 10.1016/s1465324921004540] [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: 10/21/2022]
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Abstract
Knowledge of asbestos-related diseases has been accumulating for over one hundred years as the industrial value of asbestos was recognised for the strength of its fibres and their resistance to destruction, resulting in increasing production and use until the multiple health effects have become apparent. Deposition in the lung parenchyma results in an inflammatory/progressively fibrotic response, with impaired gas exchange and reduced lung compliance ('asbestosis'), causing progressive dyspnoea and respiratory failure for which only palliation is indicated, although anti-fibrotic agents used for idiopathic usual interstitial pneumonitis remain to be evaluated. Benign pleural effusion, diffuse pleural fibrosis (occasionally with associated rolled atelectasis) and pleural plaques are the non-malignant pleural diseases that result from fibres reaching the pleura. But the main issues that led to the ban on asbestos in industry are those of malignancy: lung cancer, malignant mesothelioma (MM) of the pleura and MM of the peritoneum. Bronchogenic carcinoma risk from asbestos exposure is dose-dependent and multiplies the risk attributable to tobacco smoking. The principles of treatment are as for all cases of lung cancer. Low-dose computed tomography screening of exposed people can detect early-stage, non-small cell cancers, with improved survival. The amphibole varieties of asbestos are much more potent causes of MM than chrysotile, and the risk increases exponentially for 40-50 years following first exposure. As MM is non-resectable and poorly responsive to chemotherapy and radiotherapy, curative treatment is not possible and screening not justified.
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Affiliation(s)
- A W Musk
- School of Population Health, University of Western Australia, Nedlands, WA
| | - N de Klerk
- School of Population Health, University of Western Australia, Nedlands, WA, Telethon Kids Institute, University of Western Australia, Nedlands, WA
| | - A Reid
- School of Public Health, Curtin University, Bentley, WA
| | - J Hui
- School of Population Health, University of Western Australia, Nedlands, WA, Department of Diagnostic Genomics, PathWest Laboratory Medicine, Nedlands, WA
| | - P Franklin
- School of Population Health, University of Western Australia, Nedlands, WA
| | - F Brims
- School of Medicine, Curtin University of Technology, Bentley, WA, Australia
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Schneiderman E, Schramm P, Hui J, Wilson PD, Moura P, German Z, McCann A, Newton M. Randomized Trial of 2 Self-Titrated Oral Appliances for Airway Management. J Dent Res 2020; 100:155-162. [PMID: 32942939 DOI: 10.1177/0022034520956977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The effectiveness and predictability of 2 different oral appliance (OA) designs to reduce the respiratory event index (REI) in moderate and severe obstructive sleep apnea (OSA) patients requires elucidation. The primary aim of the trial was to determine if 2 widely used midline-traction and bilateral-thrust OA designs differ in effectiveness to reduce the REI within a single test population categorized by OSA severity. Moderate and severe adult OSA patients, who were previously prescribed continuous positive airway pressure therapy (CPAP) but were dissatisfied with it (n = 56), were studied by home-polygraphy in a randomized crossover trial using either midline-traction with restricted mouth opening (MR) or bilateral thrust with opening permitted (BP) design OAs. OAs were used nightly for 4 wk (T2) followed by a 1-wk washout period, then 4 wk (T4) using the alternate OA. REI and oxygen saturation (SaO2) were primary outcomes, while predictability and efficacy comparison of the 2 OAs were secondary outcomes. Thirty-six participants had used MR and BP OAs during both 4-wk study legs. Twenty (55.6%) MR OA-using participants, 25 (69.4%) BP OA-using participants, and 16 (44.4%) participants using both OAs had significant REI reductions. Overall baseline (T0) median REI (interquartile range) of 33.7 (20.7-54.9) was reduced to 18.0 (8.5-19.4) at T2 and to 12.5 (8.2-15.9) at T4 (P < 0.001). Comparison of the 2 sequence groups' (MR-BP and BP-MR) REI showed the median differences between T0 and T2 and T4 were highly significant (P < 0.001). Regression analysis predicted about half of all users will have REIs between 8 and 16 after 2 mo. Baseline overjet measures >2.9 mm predicted greater OA advancement at T4. Mean and minimum SaO2 did not change significantly from T0 to T2 or T4. MR and BP OA designs similarly attenuated REI in moderate and severe OSA individuals who completed the 8-wk study protocol with greater REI reduction in those with severe OSA (ClinicalTrials.gov NCT03219034).
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Affiliation(s)
- E Schneiderman
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX, USA
| | - P Schramm
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX, USA
| | - J Hui
- Department of Comprehensive Dentistry, Texas A&M University College of Dentistry, Dallas, TX, USA
| | - P D Wilson
- Department of Comprehensive Dentistry, Texas A&M University College of Dentistry, Dallas, TX, USA.,University of New England College of Dental Medicine, Portland, ME, USA
| | - P Moura
- Department of Diagnostic Sciences, Texas A&M University College of Dentistry, Dallas, TX, USA
| | - Z German
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX, USA
| | - A McCann
- Departments of Academic Affairs and Dental Hygiene, Texas A&M University College of Dentistry, Dallas, TX, USA
| | - M Newton
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX, USA
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Zhang S, Wong K, Wang M, Teo K, Chuah S, Lai R, Lim S, Lee E, Hui J, Toh W. Optimising administration of MSC exosomes for cartilage repair in the clinic. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.077] [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: 10/24/2022]
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Yao X, Wang C, Zhu Z, Hui J. Effects of biogenetic beliefs for schizophrenia on potential caregivers in China: Exploring the role of affiliate stigma. Int J Ment Health Nurs 2020; 29:161-170. [PMID: 31560451 DOI: 10.1111/inm.12655] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 08/07/2019] [Accepted: 08/14/2019] [Indexed: 01/20/2023]
Abstract
Schizophrenia affects more than eight million people in China. Stigmatization of schizophrenia may prevent family members and close others from providing social support to those with schizophrenia. This article aims to investigate the potential use of a biogenetic approach to reduce the stigma of schizophrenia using a cross-sectional (study 1, n = 141) and an experimental design (study 2, n = 100) in China. In the first study, mediation analysis reveals that perceived affiliate stigma, the negative prejudice, and discrimination towards family members of individuals with socially stigmatized identities due to their affiliation with the person mediates the path between biogenetic beliefs and desire for social distance. This pattern is replicated in study 2 in which two 10-min lectures were created and used to influence participants' beliefs in biogenetic causes of schizophrenia. Findings suggest that the biogenetic approach may increase Chinese participants' desired social distance towards their family members with schizophrenia through increasing their concerns about the negative consequences of being affiliated with the family member. Therefore, future research should investigate aspects of biogenetic anti-stigma campaigns that do not increase participants' perception of affiliate stigma in China.
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Affiliation(s)
- Xiaohui Yao
- Claremont Graduate University, Claremont, California, USA
| | - Chunhui Wang
- Chinese Center for Disease Prevention and Control, Shibei District, Qingdao, China
| | - Zhigang Zhu
- Chinese Center for Disease Prevention and Control, Shibei District, Qingdao, China
| | - Jianwen Hui
- Chinese Center for Disease Prevention and Control, Shibei District, Qingdao, China
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14
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Hui J, Goldman R, Mabud T, Arendt V, Kuo W, Hofmann R. Abstract No. 699 Diagnostic performance of lower extremity Doppler ultrasound in detecting iliocaval obstruction. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.758] [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: 10/25/2022] Open
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15
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Yao E, Li Y, Wang C, Hui J. Understanding confidentiality breach in adolescent mental health sessions: an integrated model of culture and parenting. Ethics & Behavior 2020. [DOI: 10.1080/10508422.2020.1719105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Elvin Yao
- Division of Behavioral & Organizational Sciences, Claremont Graduate University
| | - Yuhua Li
- Chinese Center for Disease Prevention and Control
| | - Chunhui Wang
- Chinese Center for Disease Prevention and Control
| | - Jianwen Hui
- Chinese Center for Disease Prevention and Control
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16
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Hui J, Abbott J, Zeitlin P, Hauk P. M274 A PATIENT WITH X-LINKED AGAMMAGLOBULINEMIA (XLA) AND NORMAL SERUM IMMUNOGLOBULINS. Ann Allergy Asthma Immunol 2019. [DOI: 10.1016/j.anai.2019.08.379] [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: 11/15/2022]
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17
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Weng Q, Zhou L, Wang H, Hui J, Chen M, Pang P, Zheng L, Xu M, Wang Z, Ji J. A radiomics model for determining the invasiveness of solitary pulmonary nodules that manifest as part-solid nodules. Clin Radiol 2019; 74:933-943. [PMID: 31521324 DOI: 10.1016/j.crad.2019.07.026] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 07/31/2019] [Indexed: 12/13/2022]
Abstract
AIM A nomogram model was developed to predict the histological subtypes of lung invasive adenocarcinomas (IAs) and minimally invasive adenocarcinomas (MIAs) that manifest as part-solid ground-glass nodules (GGNs). MATERIALS AND METHODS This retrospective study enrolled 119 patients with histopathologically confirmed part-solid GGNs assigned to the training (n=83) or testing cohorts (n=36). Radiomic features were extracted based on the unenhanced computed tomography (CT) images. R software was applied to process the qualitative and quantitative data. The CT features model, radiomic signature model, and combined prediction model were constructed and compared. RESULTS A total of 396 radiomic features were extracted from the preoperative CT images, four features including MaxIntensity, RMS, ZonePercentage, and LongRunEmphasis_angle0_offset7 were indicated to be the best discriminators to establish the radiomic signature model. The performance of the model was satisfactory in both the training and testing set with areas under the curve (AUCs) of 0.854 (95% confidence interval [CI]: 0.774 to 0.934) and 0.813 (95% CI: 0.670 to 0.955), respectively. The CT morphology of the lesion shape and diameter of the solid component were confirmed to be a significant feature for building the CT features model, which had an AUC of 0.755 (95% CI: 0.648 to 0.843). A nomogram that integrated lesion shape and radiomic signature was constructed, which contributed an AUC of 0.888 (95% CI: 0.82 to 0.955). CONCLUSIONS The radiomic signature could provide an important reference for differentiating IAs from MIAs, and could be significantly enhanced by the addition of CT morphology. The nomogram may be highly informative for making clinical decisions.
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Affiliation(s)
- Q Weng
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui, 323000, China
| | - L Zhou
- Department of Radiology, Lishui People's Hospital, Lishui, 323000, China
| | - H Wang
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui, 323000, China
| | - J Hui
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui, 323000, China
| | - M Chen
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui, 323000, China
| | - P Pang
- GE Healthcare, Hangzhou 310000, China
| | - L Zheng
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui, 323000, China
| | - M Xu
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui, 323000, China
| | - Z Wang
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui, 323000, China
| | - J Ji
- Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research, Lishui Hospital of Zhejiang University, Lishui, 323000, China.
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Habibollahi P, Hui J, Mercadante M, Tsourkas A, Nadolski G, Hunt S, Gade T. 04:12 PM Abstract No. 226 Glypican-3 optical molecular imaging enables in vivo detection and monitoring of response to adoptive immunotherapy. J Vasc Interv Radiol 2019. [DOI: 10.1016/j.jvir.2018.12.284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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19
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Habibollahi P, Hui J, Mercadante M, Tsourkas A, Nadolski G, Hunt S, Gade T. 03:00 PM Abstract No. 218 Novel anti-glypican-3 T-cell redirecting bispecific antibody for targeted adoptive immunotherapy of hepatocellular carcinoma. J Vasc Interv Radiol 2019. [DOI: 10.1016/j.jvir.2018.12.276] [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] Open
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20
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Hui J, Zomorrodi R, Salavati B, Lioumis P, Rajji T, Blumberger D, Daskalakis Z. The Pharmacology of Interhemispheric Signal Propagation in the Motor Cortex. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.507] [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] Open
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21
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Roze des Ordons AL, MacIsaac L, Everson J, Hui J, Ellaway RH. A pattern language of compassion in intensive care and palliative care contexts. BMC Palliat Care 2019; 18:15. [PMID: 30710999 PMCID: PMC6359837 DOI: 10.1186/s12904-019-0402-0] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 01/29/2019] [Indexed: 12/30/2022] Open
Abstract
Background Compassion has been identified as important for therapeutic relationships in clinical medicine however there have been few empirical studies looking at how compassion is expressed different contexts. The purpose of this study was to explore how context impacts perceptions and expressions of compassion in the intensive care unit and in palliative care. Methods This was an inductive qualitative study that employed sensitizing concepts from activity theory, realist inquiry, phenomenology and autoethnography. Clinicians working in intensive care units and palliative care services wrote guided field notes on their observations and experiences of how suffering and compassion were expressed in these settings. Data were analyzed using constructivist grounded theory. Results Fifty-eight field notes were generated, along with transcripts from three focus groups. Clinicians conceptualized, observed, and expressed compassion in different ways within different contexts. Patterns of compassion identified were relational, dispositional, activity-focused, and situational. A pattern language of compassion in healthcare was developed based on these findings. Conclusions Recognizing compassion as shifting patterns of diverse attitudes, behaviours, and relationships raises numerous questions as to how compassion can be developed, supported and recognized in different clinical settings. Electronic supplementary material The online version of this article (10.1186/s12904-019-0402-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- A L Roze des Ordons
- Department of Critical Care Medicine; Division of Palliative Medicine, Department of Oncology; Department of Anesthesiology, Cumming School of Medicine, University of Calgary, South Health Campus ICU, 4448 Front St SE, Calgary, AB, T3M 1M4, Canada.
| | - L MacIsaac
- Alberta Health Services, Palliative Care Consult Service, Calgary Zone, Alberta, Canada
| | - J Everson
- Alberta Health Services, Palliative Care Consult Service, Calgary Zone, Alberta, Canada
| | - J Hui
- Department of Family Medicine; Division of Palliative Medicine, Department of Oncology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - R H Ellaway
- Department of Community Health Sciences, Office of Health and Medical Education Scholarship, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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22
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Chong S, Lo P, Chow C, Yuen L, Chu W, Leung T, Hui J, Scaglia F. Molecular and clinical characterization of citrin deficiency in a cohort of Chinese patients in Hong Kong. Mol Genet Metab Rep 2018; 17:3-8. [PMID: 30181955 PMCID: PMC6120422 DOI: 10.1016/j.ymgmr.2018.08.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 08/18/2018] [Accepted: 08/18/2018] [Indexed: 01/17/2023] Open
Abstract
Background and objectives: This retrospective study analysed a case series of subjects with citrin deficiency, and aims to present the molecular and clinical characterization of this disease in the Hong Kong Chinese population for the first time. Patients and Methods: Data from medical records of eighteen patients with citrin deficiency (years 2006–2015) were retrieved. Demographic data, biochemical parameters, radiological results, genetic testing results, management, and clinical outcome were collected and analysed. Results: Eighteen patients with diagnosis of citrin deficiency were recruited. All 18 patients carried at least one common pathogenic variant c.852_855delTATG in SLC25A13. Prolonged jaundice (neonatal intrahepatic cholestasis caused by citrin deficiency, NICCD) was the most common presenting symptom, in conjunction with elevated plasma citrulline, threonine, alkaline phosphatase, and alpha-fetoprotein levels. The abnormal biochemical parameters including liver derangement returned to normal range in most of the cases by 6 months of age after the introduction of a lactose-free formula. There were a few cases with atypical presentations. Two subjects did not present with NICCD, and were subsequently diagnosed later in life after their siblings presented with symptoms of citrin deficiency at one month of age and subsequently received a molecular diagnosis. One patient with citrin deficiency also exhibited multiple liver hemangioendotheliomas, which subsided gradually after introduction of a lactose-free formula. Only one patient from this cohort was offered expanded metabolic screening at birth. She was not ascertained by conducted newborn screening and was diagnosed upon presentation with cholestatic jaundice by 1 month of age. Conclusion: This is the first report of the clinical and molecular characterization of a large cohort of patients with citrin deficiency in Hong Kong. The presentation of this cohort of patients expands the clinical phenotypic spectrum of NICCD. Benign liver tumors such as hemangioendotheliomas may be associated with citrin deficiency in addition to the well-known association with hepatocellular carcinoma. Citrin deficiency may manifest in later infancy period with an NICCD-like phenotype. Furthermore, this condition is not always ascertained by expanded newborn metabolic screening testing.
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Affiliation(s)
- S.C. Chong
- Department of Paediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
- Joint BCM-CUHK Center of Medical Genetics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
- Correspondence to: SC Chong, Department of Paediatrics, 6th Floor, Clinical Sciences Building, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong Special Administrative Region.
| | - P. Lo
- Department of Paediatrics, United Christian Hospital, Hong Kong Special Administrative Region
| | - C.W. Chow
- Department of Paediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - L. Yuen
- Department of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - W.C.W. Chu
- Department of Imaging & Interventional Radiology, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - T.Y. Leung
- Department of Obstetrics and Gynaecology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - J. Hui
- Department of Paediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - F. Scaglia
- Joint BCM-CUHK Center of Medical Genetics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
- Texas Children's Hospital, Houston, TX, USA
- Correspondence to: F. Scaglia, Department of Molecular and Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA.
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23
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Wu PI, Szczesniak MM, Craig PI, Choo L, Engelman J, Terkasher B, Hui J, Cook IJ. Novel Intra-Procedural Distensibility Measurement Accurately Predicts Immediate Outcome of Pneumatic Dilatation for Idiopathic Achalasia. Am J Gastroenterol 2018; 113:205-212. [PMID: 29206815 DOI: 10.1038/ajg.2017.411] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [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] [Received: 05/18/2017] [Accepted: 09/11/2017] [Indexed: 02/06/2023]
Abstract
OBJECTIVES Often 2-3 graduated pneumatic dilatations (PD) are required to treat achalasia as there is no current intra-procedural predictor of clinical response. Distensibility measurements using functional lumen imaging probe (FLIP) may provide an intra-procedural predictor of outcome. Our aim was to determine the optimal criterion for esophagogastric junction (EGJ) distensibility measurements during PD that predicts immediate clinical response. METHODS EGJ distensibility was prospectively measured using FLIP immediately pre- and post-PD. The EGJ distensibility index (EGJ-DI) was defined as a ratio of the narrowest cross-sectional area and the corresponding intra-bag pressure at 40 ml distension. Immediate and short-term clinical responses were defined as Eckardt score ≤3 assessed 2 weeks Post-PD and at 3-month follow-up, respectively. RESULTS In 54 patients, we performed thirty-seven 30 mm; twenty 35 mm and six 40 mm PDs. The short-term response rate to the graded PD was 93% (27/29) in newly diagnosed achalasia; 87% (13/15) and 70% (7/10) in those who had relapsed after previous PD and Heller's Myotomy, respectively. Among those demonstrating an immediate response, EGJ-DI increased by an average of 4.5 mm2/mmHg (95% CI (3.5, 5.5) (P<0.001). Within-subject Δ EGJ-DI was highly predictive of immediate clinical response with AUROC of 0.89 (95% CI [0.80, 0.98], P<0.001). An increment in EGJ-DI of 1.8 mm2/mmHg after a single PD predicts an immediate response with an accuracy of 87%. CONCLUSIONS FLIP-measured Δ EGJ-DI is a novel intra-procedural tool that accurately predicts immediate clinical response to PD in achalasia. This technique may potentially dictate an immediate mechanism to "step-up" dilator size within a single endoscopy session.
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Affiliation(s)
- P I Wu
- Department of Gastroenterology and Hepatology, St George Hospital, Sydney, NSW, Australia.,St George Clinical School, University of New South Wales, Sydney, NSW, Australia
| | - M M Szczesniak
- Department of Gastroenterology and Hepatology, St George Hospital, Sydney, NSW, Australia.,St George Clinical School, University of New South Wales, Sydney, NSW, Australia
| | - P I Craig
- Department of Gastroenterology and Hepatology, St George Hospital, Sydney, NSW, Australia.,St George Clinical School, University of New South Wales, Sydney, NSW, Australia
| | - L Choo
- Department of Gastroenterology and Hepatology, St George Hospital, Sydney, NSW, Australia
| | - J Engelman
- Department of Gastroenterology and Hepatology, St George Hospital, Sydney, NSW, Australia
| | - B Terkasher
- St George Clinical School, University of New South Wales, Sydney, NSW, Australia.,Department of Gastroenterology and Hepatology, Sutherland Hospital, Sydney, NSW, Australia
| | - J Hui
- St George Clinical School, University of New South Wales, Sydney, NSW, Australia.,Department of Gastroenterology and Hepatology, Sutherland Hospital, Sydney, NSW, Australia
| | - I J Cook
- Department of Gastroenterology and Hepatology, St George Hospital, Sydney, NSW, Australia.,St George Clinical School, University of New South Wales, Sydney, NSW, Australia
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Hui J, Pang SW. Dynamic Tracking of Osteoblastic Cell Traction Force during Guided Migration. Cell Mol Bioeng 2017; 11:11-23. [PMID: 31719876 DOI: 10.1007/s12195-017-0514-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 11/11/2017] [Indexed: 11/30/2022] Open
Abstract
Introduction Continuous development of cell traction force can regulate cell migration on various extracellular matrixes in vivo. However, the topographical effect on traction force is still not fully understood. Methods Micropost sensors with parallel guiding gratings were fabricated in polydimethylsiloxane to track the cell traction force during topographical guidance in real time. The force distributions along MC3T3-E1 mouse osteoblasts were captured every minute. The traction force in the leading, middle, and trailing regions was monitored during forward and reversed cell migration. Results The traction force showed periodic changes during cell migration when the cell changed from elongated to contracted shape. For cell migration without guiding pattern, the leading region showed the largest traction force among the three regions, typically 5.8 ± 0.8 nanonewton (nN) when the cell contracted and 7.1 ± 0.5 nN when it elongated. During guided cell migration, a lower traction force was obtained. When a cell contracted, the trailing traction force was 4.1 ± 0.4 for non-guided migration and 2.2 ± 0.2 nN for guided migration. As a cell became elongated, the trailing traction force was 6.0 ± 0.5 nN during non-guided migration and 4.8 ± 0.3 nN under guidance. When a cell reversed its migration direction, the magnitudes of the traction force from the leading to the trailing regions also flipped. Conclusion The cell traction force is continuously influenced by topographical guidance, which determines cell migration speed and direction. These results of cell traction force development on various topographies could lead to better cell migration control using topotaxis.
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Affiliation(s)
- J Hui
- Department of Electronic Engineering, City University of Hong Kong, Kowloon, Hong Kong.,Center for Biosystems, Neuroscience, and Nanotechnology, City University of Hong Kong, Kowloon, Hong Kong
| | - S W Pang
- Department of Electronic Engineering, City University of Hong Kong, Kowloon, Hong Kong.,Center for Biosystems, Neuroscience, and Nanotechnology, City University of Hong Kong, Kowloon, Hong Kong
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Chong SC, Law LK, Hui J, Lai CY, Leung TY, Yuen YP. Expanded newborn metabolic screening programme in Hong Kong: a three-year journey. Hong Kong Med J 2017; 23:489-96. [PMID: 28862145 DOI: 10.12809/hkmj176274] [Citation(s) in RCA: 5] [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] [Indexed: 11/05/2022] Open
Abstract
INTRODUCTION No universal expanded newborn screening service for inborn errors of metabolism is available in Hong Kong despite its long history in developed western countries and rapid development in neighbouring Asian countries. To increase the local awareness and preparedness, the Centre of Inborn Errors of Metabolism of the Chinese University of Hong Kong started a private inborn errors of metabolism screening programme in July 2013. This study aimed to describe the results and implementation of this screening programme. METHODS We retrieved the demographics of the screened newborns and the screening results from July 2013 to July 2016. These data were used to calculate quality metrics such as call-back rate and false-positive rate. Clinical details of true-positive and false-negative cases and their outcomes were described. Finally, the call-back logistics for newborns with positive screening results were reviewed. RESULTS During the study period, 30 448 newborns referred from 13 private and public units were screened. Of the samples, 98.3% were collected within 7 days of life. The overall call-back rate was 0.128% (39/30 448) and the false-positive rate was 0.105% (32/30 448). Six neonates were confirmed to have inborn errors of metabolism, including two cases of medium-chain acyl-coenzyme A dehydrogenase deficiency, one case of carnitine-acylcarnitine translocase deficiency, and three milder conditions. One case of maternal carnitine uptake defect was diagnosed. All patients remained asymptomatic at their last follow-up. CONCLUSION The Centre of Inborn Errors of Metabolism has established a comprehensive expanded newborn screening programme for selected inborn errors of metabolism. It sets a standard against which the performance of other private newborn screening tests can be compared. Our experience can also serve as a reference for policymakers when they contemplate establishing a government-funded universal expanded newborn screening programme in the future.
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Affiliation(s)
- S C Chong
- Centre of Inborn Errors of Metabolism, The Chinese University of Hong Kong, Shatin, Hong Kong.,Department of Paediatrics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - L K Law
- Centre of Inborn Errors of Metabolism, The Chinese University of Hong Kong, Shatin, Hong Kong.,Department of Chemical Pathology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - J Hui
- Centre of Inborn Errors of Metabolism, The Chinese University of Hong Kong, Shatin, Hong Kong.,Department of Paediatrics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - C Y Lai
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - T Y Leung
- Centre of Inborn Errors of Metabolism, The Chinese University of Hong Kong, Shatin, Hong Kong.,Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Y P Yuen
- Centre of Inborn Errors of Metabolism, The Chinese University of Hong Kong, Shatin, Hong Kong.,Department of Chemical Pathology, The Chinese University of Hong Kong, Shatin, Hong Kong
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Habibollahi P, Hui J, Noji M, Hunt S, Nadolski G, Gade T. Optical molecular imaging of glypican-3 in hepatocellular carcinoma. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.729] [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: 11/29/2022] Open
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27
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Hui J, Habibollahi P, Noji M, Tsourkas A, Nadolski G, Hunt S, Gade T. Development of a novel bispecific antibody for targeted immunotherapy of hepatocellular carcinoma. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.726] [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] Open
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Haocheng L, Han W, Lei Z, Lianming Z, Defeng L, Wenhao T, Jiaming M, Zhe Z, Yuzhuo Y, Hongliang Z, Kai H, Hui J. 023 Sexual Behavior and PDE5-Is Administration Habits Among Chinese Male: Data From the 2016 Internet Survey of Sexual Life. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.11.025] [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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29
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Lianming Z, Han W, Hui J, Kai H, Haocheng L, Wenhao T, Defeng L, Jiaming M, Zhe Z, Yuzhuo Y, Hongliang Z. 124 A Practical Model to Predict Sperm Retrieval Rate of Micro-Tese--A Chinese Experience From Single Center. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.11.077] [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: 11/24/2022]
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30
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Hui J, Huishan W, Tao L, Zhonglu Y, Renteng Z, Hongguang H. miR-539 as a key negative regulator of the MEK pathway in myocardial infarction. Herz 2016; 42:781-789. [PMID: 27981363 DOI: 10.1007/s00059-016-4517-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 11/07/2016] [Accepted: 11/19/2016] [Indexed: 10/20/2022]
Abstract
BACKGROUND Myocardial infarction is one of the most common causes of death, and the number of individuals at risk is increasing. A rapid and accurate differential diagnosis of myocardial infarction is crucial for timely interventions and for improvement of the prognosis. However, it is difficult to achieve using current methods. To better manage this condition, improved tools for risk prediction, including more accurate biomarkers, are needed. METHODS We studied the expression of microRNA-539 (miR-539) and of MEK protein using a rat model of myocardial infarction. RESULTS The results of our experiments demonstrated an increase in the expression of miR-539 and a decrease in the expression of MEK. Furthermore, we observed that miR-539 inhibited the expression of MEK through targeting of the 3'UTR of MEK; this led not only to suppressed proliferation but also to apoptosis and autophagy of H9C2 cells. CONCLUSION Overexpression of miR-539 plays a role in the degree of myocardial infarction. On the basis of our results, we conclude that miR-539 may be a potential therapeutic target for myocardial infarction.
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Affiliation(s)
- J Hui
- Department of Cardiovascular Surgery, The General Hospital of Shenyang Military Region, No. 83Wenhua Road, 110016, Shenhe District, Shenyang, Liaoning, China
| | - W Huishan
- Department of Cardiovascular Surgery, The General Hospital of Shenyang Military Region, No. 83Wenhua Road, 110016, Shenhe District, Shenyang, Liaoning, China.
| | - L Tao
- Department of Cardiovascular Surgery, The General Hospital of Shenyang Military Region, No. 83Wenhua Road, 110016, Shenhe District, Shenyang, Liaoning, China
| | - Y Zhonglu
- Department of Cardiovascular Surgery, The General Hospital of Shenyang Military Region, No. 83Wenhua Road, 110016, Shenhe District, Shenyang, Liaoning, China
| | - Z Renteng
- Department of Cardiovascular Surgery, The General Hospital of Shenyang Military Region, No. 83Wenhua Road, 110016, Shenhe District, Shenyang, Liaoning, China
| | - H Hongguang
- Department of Cardiovascular Surgery, The General Hospital of Shenyang Military Region, No. 83Wenhua Road, 110016, Shenhe District, Shenyang, Liaoning, China
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Law CY, Yeung WL, Cheung YF, Chan HF, Fung E, Hui J, Yung IO, Yuen YP, Chan AO, Lam CW. A common PRRT2 mutation in familial paroxysmal kinesigenic dyskinesia in Hong Kong: a case series of 16 patients. Hong Kong Med J 2016; 22:619-22. [PMID: 27920401 DOI: 10.12809/hkmj154579] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- C Y Law
- Department of Pathology, The University of Hong Kong, Pokfulam, Hong Kong
| | - W L Yeung
- Department of Paediatrics and Adolescent Medicine, Alice Ho Miu Ling Nethersole Hospital, Tai Po, Hong Kong
| | - Y F Cheung
- Division of Neurology, Department of Medicine, Queen Elizabeth Hospital, Jordan, Hong Kong
| | - H F Chan
- Division of Neurology, Department of Medicine, Queen Elizabeth Hospital, Jordan, Hong Kong
| | - E Fung
- Department of Paediatrics, Prince of Wales Hospital, Shatin, Hong Kong
| | - J Hui
- Department of Paediatrics, Prince of Wales Hospital, Shatin, Hong Kong
| | - I Ok Yung
- Division of Neurology, Department of Medicine and Therapeutics, Prince of Wales Hospital, Shatin, Hong Kong
| | - Y P Yuen
- Department of Chemical Pathology, Prince of Wales Hospital, Shatin, Hong Kong
| | - A Ok Chan
- Division of Clinical Biochemistry, Queen Mary Hospital, Pokfulam, Hong Kong
| | - C W Lam
- Department of Pathology, The University of Hong Kong, Pokfulam, Hong Kong
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Hui J, Zitun M, Batra P, LoSavio P, Mahdavinia M. O039 Effect of chronic rhinosinusitis on sleep architecture and physiology in comorbid sleep related breathing disorders. Ann Allergy Asthma Immunol 2016. [DOI: 10.1016/j.anai.2016.09.399] [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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Hui J, Chong SC, Law LK, Lee LK, Chang S, Yau P, Yuen YP. One too many: intellectual disability secondary to undiagnosed phenylketonuria. Hong Kong Med J 2016; 22:506-8. [PMID: 27738300 DOI: 10.12809/hkmj144500] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- J Hui
- Department of Paediatrics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - S C Chong
- Department of Paediatrics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - L K Law
- Department of Chemical Pathology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - L K Lee
- Department of Paediatrics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - S Chang
- Dietetics Department, Prince of Wales Hospital, Shatin, Hong Kong
| | - P Yau
- Dietetics Department, Prince of Wales Hospital, Shatin, Hong Kong
| | - Y P Yuen
- Department of Chemical Pathology, The Chinese University of Hong Kong, Shatin, Hong Kong
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Revez JA, Matheson MC, Hui J, Baltic S, James A, Upham JW, Dharmage S, Thompson PJ, Martin NG, Hopper JL, Ferreira MAR. Identification of STOML2 as a putative novel asthma risk gene associated with IL6R. Allergy 2016; 71:1020-30. [PMID: 26932604 DOI: 10.1111/all.12869] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/25/2016] [Indexed: 01/05/2023]
Abstract
BACKGROUND Functional variants in the interleukin-6 receptor gene (IL6R) are associated with asthma risk. We hypothesized that genes co-expressed with IL6R might also be regulated by genetic polymorphisms that are associated with asthma risk. The aim of this study was to identify such genes. METHODS To identify genes whose expression was correlated with that of IL6R, we analyzed gene expression levels generated for 373 human lymphoblastoid cell lines by the Geuvadis consortium and for 38 hematopoietic cell types by the Differentiation Map Portal (DMAP) project. Genes correlated with IL6R were then screened for nearby single nucleotide polymorphisms (SNPs) that were significantly associated with both variation in gene expression levels (eSNPs) and asthma risk. RESULTS We identified 90 genes with expression levels correlated with those of IL6R and that also had a nearby eSNP associated with disease risk in a published asthma GWAS (N = 20 776). For 16 (18%) genes, the association between the eSNP and asthma risk replicated with the same direction of effect in a further independent published asthma GWAS (N = 27 378). Among the top replicated associations (FDR < 0.05) were eSNPs for four known (IL18R1, IL18RAP, BCL6, and STAT6) and one putative novel asthma risk gene, stomatin-like protein 2 (STOML2). The expression of STOML2 was negatively correlated with IL6R, while eSNPs that increased the expression of STOML2 were associated with an increased asthma risk. CONCLUSION The expression of STOML2, a gene that plays a key role in mitochondrial function and T-cell activation, is associated with both IL-6 signaling and asthma risk.
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Affiliation(s)
- J. A. Revez
- QIMR Berghofer Medical Research Institute; Brisbane Qld Australia
| | - M. C. Matheson
- Melbourne School of Population and Global Health; The University of Melbourne; Melbourne Vic. Australia
| | - J. Hui
- PathWest Laboratory Medicine of Western Australia (WA); Nedlands WA Australia
- School of Population Health; The University of WA; Nedlands WA Australia
- School of Pathology and Laboratory Medicine; The University of WA; Nedlands WA Australia
- Busselton Population Medical Research Institute; Sir Charles Gairdner Hospital; Perth WA Australia
| | - S. Baltic
- Institute for Respiratory Health; University of WA; Perth WA Australia
| | - A. James
- Busselton Population Medical Research Institute; Sir Charles Gairdner Hospital; Perth WA Australia
- School of Medicine and Pharmacology; University of Western Australia; Nedlands WA Australia
- Department of Pulmonary Physiology; West Australian Sleep Disorders Research Institute; Nedlands WA Australia
| | - J. W. Upham
- School of Medicine; Translational Research Institute; The University of Queensland; Brisbane Qld Australia
| | - S. Dharmage
- Melbourne School of Population and Global Health; The University of Melbourne; Melbourne Vic. Australia
| | - P. J. Thompson
- Institute for Respiratory Health; University of WA; Perth WA Australia
- School of Medicine and Pharmacology; University of Western Australia; Nedlands WA Australia
| | - N. G. Martin
- QIMR Berghofer Medical Research Institute; Brisbane Qld Australia
| | - J. L. Hopper
- Melbourne School of Population and Global Health; The University of Melbourne; Melbourne Vic. Australia
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Zhang S, Chu W, Lai R, Hui J, Lee E, Lim S, Toh W. Human Mesenchymal Stem Cell-Derived Exosomes Promote Orderly Cartilage Regeneration in an Immunocompetent Rat Osteochondral Defect Model. Cytotherapy 2016. [DOI: 10.1016/j.jcyt.2016.03.035] [Citation(s) in RCA: 10] [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] [Indexed: 11/27/2022]
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Yu B, Zhao S, Hu D, Ambegaonakr BM, DYSIS-China Study Investigators, Jia Er BA, Guiwen C, Buxing C, Hong C, Jin C, Jing C, Liefeng C, Min C, Qiong C, Shaoliang C, Tielong C, Xiaofei C, Xiaohong C, You C, Guoli C, Mei C, Hongliang C, Qin C, Shiwei C, Yong C, Shudong D, Henghua D, Xiaomei D, Yirong D, Xiaoyan D, Birong D, Yumei D, Yugang D, Ping D, Lei D, Limei F, Ningyuan F, Lixia F, Lie F, Jun G, GeWeihong, Hongmin G, Minxia G, Qinghua H, Fengchang H, Dayi H, Lingzhi H, Xueqiang H, Yaojun H, Yiming H, Zhiping H, Fei H, Qi H, Dejia H, Gewen H, Hongman H, Liming H, Qiong H, Ruowen H, Taifu H, Bin J, Kai J, Hui J, Huigen J, Jinsong K, Bao L, Chengjiang L, Hongjuan L, Jun(Xinjiang) L, Jun(Jiangsu) L, Nanfang L, Qifu L, Qiang L, Xin L, Xueyou L, Yanbing L, Yanping L, Yansheng L, Yong L, Yuling L, Zhanquan L, Zhengfang L, Li L, Yongxue L, Zerong L, Yuhua L, Fan L, Hong L, Hui L, Minling L, Qiang L, Qingsong L, Shaokui L, Weidong L, Xueping L, Xinjian L, Benyan L, Shaonian L, Suxin L, Hong L, LvYun, Aiqun M, Jianhua M, Qiang M, Yan M, Changsheng M, Yide M, Yiming M, NieXiaoli, NiuXiaoyuan, Hongtao P, Mingkang P, Qiaoqing P, Huifen Q, Qiumin Q, Lijie Q, Liqun R, Jingshan S, Qiang S, Jing H, Xiuyun S, Yongquan S, Liangyi S, Zhi S, Zhiyuan S, Yufeng S, Chunyan T, TengXiaochun, Haoming T, Wenhua T, Qinwei T, TuQiuyun, Keying W, Aihong W, Chaohui W, Chunning W, Dezhao W, Guixia W, Hanqiao W, Jianan W, Jianjun W, Lan W, Xiaoming W, Yaping W, Yangwei W, Yongjun W, Meifang W, Yidong W, Hongyun W, Chun W, Dongmei W, Jiang W, Jun W, Xiaolin W, Zonggui W, XiGuangxia, Yi X, Qian X, Xiaoping X, Yulong X, Anding X, XueYuanming, Chuanzhu Y, Tao Y, Xiaowei Y, Gangyi Y, Jian Y, Wangpingm Y, Xiaosu Y, Xinchun Y, Yifang Y, Yu Y, Mingyu Y, Min Y, Ping Y, Bo Y, Jiangyi Y, Jinming Y, Yan Y, Ling Z, Longyi Z, Xiaoyun Z, Baorong Z, Bei Z, Chaoxin Z, Xuelian Z, Dadong Z, Dongping Z, Fuchun Z, Hong Z, Huifang Z, Liping Z, Liyang Z, Rufu Z, Saidan Z, Weijuan Z, Dong Z, Gang Z, Shuiping Z, Xiuxin Z, Qiangsun Z, Yang Z, Xiaohui Z, Yali Z, Yujie Z, Yi Z, Yulan Z, Xiangping Z. Gender differences in lipid goal attainment among Chinese patients with coronary heart disease: insights from the DYSlipidemia International Study of China. Eur Heart J Suppl 2015. [DOI: 10.1093/eurheartj/suv018] [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: 11/12/2022]
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Haddadi S, Thapa S, Kameka AM, Hui J, Czub M, Nagy E, Muench G, Abdul-Careem MF. Toll-like receptor 2 ligand, lipoteichoic acid is inhibitory against infectious laryngotracheitis virus infection in vitro and in vivo. Dev Comp Immunol 2015; 48:22-32. [PMID: 25195716 DOI: 10.1016/j.dci.2014.08.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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: 07/04/2014] [Revised: 08/22/2014] [Accepted: 08/24/2014] [Indexed: 06/03/2023]
Abstract
Lipoteichoic acid (LTA) is one of the pathogen associated molecular patterns (PAMPs) that activates toll-like receptor (TLR)2-cluster of differentiation (CD)14 signalling pathway. This recognition elicits antiviral responses that have been recorded against viruses of mammals although such responses have not been characterized adequately against avian viruses. In this investigation, we characterized the LTA induced antiviral responses against infectious laryntotracheitis virus (ILTV) infection in vitro and in vivo. We found that LTA is capable of up regulating mRNA expression of innate proteins in macrophages such as MyD88, iNOS and IL-1β and reduces the ILTV plaques in vitro. Similarly, we found that LTA treatment of embryonic day 18 (ED18) eggs can lead to the antiviral response against pre-hatch ILTV infection in vivo and is associated with expansion of macrophage populations and expression of IL-1β and MyD88 in the lung. The data highlight that LTA can be a potential innate immune stimulant that can be used against ILTV infection in chickens.
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Affiliation(s)
- S Haddadi
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center 2C64, 3330 Hospital Drive NW, Calgary, Canada AB T2N 2Z6
| | - S Thapa
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center 2C64, 3330 Hospital Drive NW, Calgary, Canada AB T2N 2Z6
| | - A M Kameka
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center 2C64, 3330 Hospital Drive NW, Calgary, Canada AB T2N 2Z6
| | - J Hui
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center 2C64, 3330 Hospital Drive NW, Calgary, Canada AB T2N 2Z6
| | - M Czub
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center 2C64, 3330 Hospital Drive NW, Calgary, Canada AB T2N 2Z6
| | - E Nagy
- Department of Pathobiology, University of Guelph, Guelph, Canada
| | - G Muench
- Veterinary Science Research Station, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - M F Abdul-Careem
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center 2C64, 3330 Hospital Drive NW, Calgary, Canada AB T2N 2Z6.
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Melén E, Granell R, Kogevinas M, Strachan D, Gonzalez JR, Wjst M, Jarvis D, Ege M, Braun-Fahrländer C, Genuneit J, Horak E, Bouzigon E, Demenais F, Kauffmann F, Siroux V, Michel S, von Berg A, Heinzmann A, Kabesch M, Probst-Hensch NM, Curjuric I, Imboden M, Rochat T, Henderson J, Sterne JAC, McArdle WL, Hui J, James AL, William Musk A, Palmer LJ, Becker A, Kozyrskyj AL, Chan-Young M, Park JE, Leung A, Daley D, Freidin MB, Deev IA, Ogorodova LM, Puzyrev VP, Celedón JC, Brehm JM, Cloutier MM, Canino G, Acosta-Pérez E, Soto-Quiros M, Avila L, Bergström A, Magnusson J, Söderhäll C, Kull I, Scholtens S, Marike Boezen H, Koppelman GH, Wijga AH, Marenholz I, Esparza-Gordillo J, Lau S, Lee YA, Standl M, Tiesler CMT, Flexeder C, Heinrich J, Myers RA, Ober C, Nicolae DL, Farrall M, Kumar A, Moffatt MF, Cookson WOCM, Lasky-Su J. Genome-wide association study of body mass index in 23 000 individuals with and without asthma. Clin Exp Allergy 2013; 43:463-74. [PMID: 23517042 DOI: 10.1111/cea.12054] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Revised: 09/28/2012] [Accepted: 10/22/2012] [Indexed: 12/20/2022]
Abstract
BACKGROUND Both asthma and obesity are complex disorders that are influenced by environmental and genetic factors. Shared genetic factors between asthma and obesity have been proposed to partly explain epidemiological findings of co-morbidity between these conditions. OBJECTIVE To identify genetic variants that are associated with body mass index (BMI) in asthmatic children and adults, and to evaluate if there are differences between the genetics of BMI in asthmatics and healthy individuals. METHODS In total, 19 studies contributed with genome-wide analysis study (GWAS) data from more than 23 000 individuals with predominantly European descent, of whom 8165 are asthmatics. RESULTS We report associations between several DENND1B variants (P = 2.2 × 10(-7) for rs4915551) on chromosome 1q31 and BMI from a meta-analysis of GWAS data using 2691 asthmatic children (screening data). The top DENND1B single nucleotide polymorphisms(SNPs) were next evaluated in seven independent replication data sets comprising 2014 asthmatics, and rs4915551 was nominally replicated (P < 0.05) in two of the seven studies and of borderline significance in one (P = 0.059). However, strong evidence of effect heterogeneity was observed and overall, the association between rs4915551 and BMI was not significant in the total replication data set, P = 0.71. Using a random effects model, BMI was overall estimated to increase by 0.30 kg/m(2) (P = 0.01 for combined screening and replication data sets, N = 4705) per additional G allele of this DENND1BSNP. FTO was confirmed as an important gene for adult and childhood BMI regardless of asthma status. CONCLUSIONS AND CLINICAL RELEVANCE DENND1B was recently identified as an asthma susceptibility gene in a GWAS on children, and here, we find evidence that DENND1B variants may also be associated with BMI in asthmatic children. However, the association was overall not replicated in the independent data sets and the heterogeneous effect of DENND1B points to complex associations with the studied diseases that deserve further study.
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Affiliation(s)
- E Melén
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
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Mulrennan SA, Knuiman MW, Divitini ML, Cullen DJ, Hunter M, Hui J, Musk AW, James AL. Gastro-oesophageal reflux and respiratory symptoms in Busselton adults: the effects of bodyweight and sleep apnoea. Intern Med J 2013; 42:772-9. [PMID: 21627741 DOI: 10.1111/j.1445-5994.2011.02535.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND/AIM Respiratory symptoms and gastro-oesophageal reflux disease (GORD) are common within the general population. Although a number of epidemiological studies have addressed their relationship, none has investigated the confounding effects of body mass index (BMI) and obstructive sleep apnoea (OSA), both of which are associated with reflux. METHODS Men and women (2700) from the 2005-2007 cross-sectional Busselton health survey were included. Questionnaire data included demography, information on general health, asthma, cough, wheeze, dyspnoea and reflux symptoms (never, monthly or less often and weekly or more often). BMI, risk of OSA (Berlin questionnaire definition), spirometry and airway hyperresponsiveness (AHR) were recorded. The effects of BMI and OSA on the relationship between respiratory and reflux symptoms were examined using logistic regression models, expressed as adjusted odds ratios for risk of respiratory symptoms by reflux symptom category. RESULTS Fifty per cent had reflux symptoms (5-10% weekly or more often). Reflux symptoms had strong positive, dose-related associations with cough/phlegm, breathlessness, chest tightness and wheeze in the last 12 months (P < 0.001), but were not related to diagnosed asthma or AHR. Twenty-three per cent were at high risk of OSA and 63% had a BMI of >25 (22% > 30). Increased weight or high risk of OSA did not affect the relationship between respiratory symptoms and reflux symptoms. CONCLUSION The relationship between reflux and respiratory symptoms was independent of BMI, high risk of OSA or AHR. These findings suggest that reflux contributes directly to respiratory symptoms.
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Affiliation(s)
- S A Mulrennan
- Department of Respiratory Medicine, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia.
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Shi C, Wang X, Dong F, Wang Y, Hui J, Lin Z, Yang J, Xu Y. Temporal alterations and cellular mechanisms of transmural repolarization during progression of mouse cardiac hypertrophy and failure. Acta Physiol (Oxf) 2013; 208:95-110. [PMID: 23356774 DOI: 10.1111/apha.12071] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Revised: 10/29/2012] [Accepted: 01/23/2013] [Indexed: 01/02/2023]
Abstract
AIM The remodelling of transmural dispersion of repolarization (TDR) in human heart failure (HF) and in different animal models of cardiac hypertrophy or HF remains a controversial topic. We hypothesize that TDR may exhibit temporal alterations, depending on the stage of the disease. METHODS We systematically investigated the temporal alterations of TDR during the development of cardiac hypertrophy and HF in the mouse pressure-overload model using electrophysiological and molecular biology techniques. RESULTS A progressive prolongation of QT interval and changes in the amplitude of the J wave at 2, 5, 9 and 13 weeks were found in anesthetized aorta-banded mice. Action potential duration (APD) at 90% repolarization (APD90) in subendocardial myocytes of the left ventricular free wall remained unchanged at the hypertrophic stage (2 and 5 weeks), but was significantly prolonged in HF mice at 9 and 13 weeks. However, APD90 in subepicardial myocytes exhibited a significant prolongation at 2 weeks and did not progressively extend from 2 weeks to 13 weeks in banded mice. Thus, non-parallel prolongation of APD in subendocardial and subepicardial myocytes led to a reduction in TDR at hypertrophic stage and an amplification of TDR at HF stage. Further experiments revealed that asynchronous down-regulation of voltage-dependent potassium currents (I(to,f), I(K,slow) and I(ss)) and L-type calcium currents (I(Ca-L)) in subendocardial and subepicardial myocytes may contribute to the dynamic remodelling of transmural APD. CONCLUSION The two distinct TDR modes were revealed during the progression of mouse cardiac hypertrophy and failure, indicating that the remodelling of TDR depends on the stage of the disease.
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Affiliation(s)
| | - X. Wang
- The Third Hospital of Hebei Medical University; Shijiazhuang; China
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Miyasaki JM, Long J, Mancini D, Moro E, Fox S, Lang A, Marras C, Chen R, Strafella A, Arshinoff R, Ghoche R, Hui J. Palliative care for advanced Parkinson disease: An interdisciplinary clinic and new scale, the ESAS-PD. Parkinsonism Relat Disord 2012; 18 Suppl 3:S6-9. [DOI: 10.1016/j.parkreldis.2012.06.013] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Wan YI, Shrine NRG, Soler Artigas M, Wain LV, Blakey JD, Moffatt MF, Bush A, Chung KF, Cookson WOCM, Strachan DP, Heaney L, Al-Momani BAH, Mansur AH, Manney S, Thomson NC, Chaudhuri R, Brightling CE, Bafadhel M, Singapuri A, Niven R, Simpson A, Holloway JW, Howarth PH, Hui J, Musk AW, James AL, Brown MA, Baltic S, Ferreira MAR, Thompson PJ, Tobin MD, Sayers I, Hall IP. Genome-wide association study to identify genetic determinants of severe asthma. Thorax 2012; 67:762-8. [PMID: 22561531 DOI: 10.1136/thoraxjnl-2011-201262] [Citation(s) in RCA: 138] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND The genetic basis for developing asthma has been extensively studied. However, association studies to date have mostly focused on mild to moderate disease and genetic risk factors for severe asthma remain unclear. OBJECTIVE To identify common genetic variants affecting susceptibility to severe asthma. METHODS A genome-wide association study was undertaken in 933 European ancestry individuals with severe asthma based on Global Initiative for Asthma (GINA) criteria 3 or above and 3346 clean controls. After standard quality control measures, the association of 480 889 genotyped single nucleotide polymorphisms (SNPs) was tested. To improve the resolution of the association signals identified, non-genotyped SNPs were imputed in these regions using a dense reference panel of SNP genotypes from the 1000 Genomes Project. Then replication of SNPs of interest was undertaken in a further 231 cases and 1345 controls and a meta-analysis was performed to combine the results across studies. RESULTS An association was confirmed in subjects with severe asthma of loci previously identified for association with mild to moderate asthma. The strongest evidence was seen for the ORMDL3/GSDMB locus on chromosome 17q12-21 (rs4794820, p=1.03×10((-8)) following meta-analysis) meeting genome-wide significance. Strong evidence was also found for the IL1RL1/IL18R1 locus on 2q12 (rs9807989, p=5.59×10((-8)) following meta-analysis) just below this threshold. No novel loci for susceptibility to severe asthma met strict criteria for genome-wide significance. CONCLUSIONS The largest genome-wide association study of severe asthma to date was carried out and strong evidence found for the association of two previously identified asthma susceptibility loci in patients with severe disease. A number of novel regions with suggestive evidence were also identified warranting further study.
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Affiliation(s)
- Y I Wan
- Therapeutics and Molecular Medicine, University of Nottingham, Nottingham, UK.
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Carlson R, Morris W, Moiseenko V, Tyldesley S, Kosztyla R, Hamm J, Hui J, Jackson J, Sahota H, Liu M. The Toxicity of Dose Escalated External Beam Radiation Therapy after Elective Pelvic Nodal Irradiation: Evaluating the Utility of the QUANTEC Rectal Dose Thresholds. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.651] [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: 12/01/2022]
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He G, Hui J, Shen D. Association of 5-lipoxygenase activating protein (ALOX5AP) gene SG13S114T/A polymorphism with the elderly ACS. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.95] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Hui J, Yu J, Song P, Zhang B, Zhang W, Mu D, Han D, Ma L, Zhang X, Zhao S. Comparison of 18f-fluorothymidine and 18f-fluorodeoxyglucose PET/CT in Assessment of Chemoradioresponse in Esophageal Squamous Cell Cancer: A Pilot Study. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.499] [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: 11/15/2022]
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Ma M, Hui J, Lv B, Meng Y. Therapeutic value of continuous veno-venous hemofiltration administration in treating fulminant myocarditis. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Yu ZL, Yang XJ, Zhu JZ, Gu HM, Wang GQ, Hui J, Jiang WP. Using an abnormal increase in postexercise systolic blood pressure to diagnose coronary artery disease in gerontal patients. J Int Med Res 2011; 39:637-46. [PMID: 21672369 DOI: 10.1177/147323001103900233] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Data from 66 patients ≥ 60 years old with suspected coronary artery disease (CAD) were studied to determine the diagnostic value of an abnormal increase in postexercise systolic blood pressure (SBP) for detecting CAD in gerontal patients. Treadmill exercise testing (TET) and selective coronary angiography (CAG) were carried out and SBP was measured pre-TET and at each minute during a 6-min post-TET recovery phase. Abnormal increase in postexercise SBP was defined as a higher SBP compared with that measured earlier during the 6-min post-TET period. An abnormal increase of ≥ 7 mmHg in postexercise SBP had a statistically significantly better specificity, and also showed higher sensitivity and accuracy, than ST-segment depression ≥ 1 mV in identifying gerontal patients with CAD. The combination of ST-segment depression and abnormal SBP resulted in further improvement of the specificity for detecting CAD. It is concluded that measurement of abnormal increase in postexercise SBP may be a sensitive indicator of gerontal CAD.
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Affiliation(s)
- Z L Yu
- Department of Cardiology, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, China.
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Rasalkar DD, Chu WCW, Hui J, Chu CM, Paunipagar BK, Li CK. Pictorial review of mucopolysaccharidosis with emphasis on MRI features of brain and spine. Br J Radiol 2011; 84:469-77. [PMID: 21511751 DOI: 10.1259/bjr/59197814] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Mucopolysaccharidosis (MPS) is an inherited metabolic disorder of childhood, characterised by progressive multisystem involvement predominantly affecting the skeletal system leading to skeletal dysplasia. Mental retardation, neuropathy and cardiomyopathy may occur in the most severely affected patients, leading to progressive disability and death in their early third to fourth decades. The purpose of this paper is to illustrate the typical imaging features of different types of MPS, in particular the MR features of the brain and spine in MPS, which are expected to be encountered by radiologists more frequently in their clinical practice as a result of prolonged life expectancy for those with MPS with recent advances in therapeutic interventions. The treatment options and outcomes for MPS patients are also briefly discussed.
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Affiliation(s)
- D D Rasalkar
- Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Prince of Wales Hospital, Ngan Shing St, Shatin, New Territories, Hong Kong
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Cheng KC, Yeung YP, Hui J, Ho KM, Yip AWC. Multimedia manuscript: laparoscopic resection of hepatocellular carcinoma at segment 7: the posterior approach to anatomic resection. Surg Endosc 2011; 25:3437. [PMID: 21667209 DOI: 10.1007/s00464-011-1685-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2010] [Accepted: 02/28/2011] [Indexed: 12/17/2022]
Abstract
BACKGROUND Open anatomical liver resections remain one of the most effective treatments of hepatocellular carcinoma (HCC) and results in better recurrence-free and overall survival compared to nonanatomical resections [1]. On the other hand, laparoscopic hepatectomies for HCC have recently emerged with the benefits of reduced blood loss, shorter hospital stay, and less severe wound pain [2, 3]. Classically, liver lesions considered suitable for laparoscopic resection were those small tumors (<4 cm) located over the anterior and left lateral segments [3]. However, we would like to expand the current indications and here we present our techniques of laparoscopic anatomical resection for a HCC that was located at right posteriosuperior segment 7. METHODS Our patient was a 60-year-old gentleman who had Child's A hepatitis B cirrhosis and was on entecavir. During a follow-up CT scan, a 2.6-cm segment 7 lesion with early arterial enhancement and contrast washout was noted and was subsequently confirmed with arteriogram. α-Fetoprotein was 3 ng/ml (normal < 20 ng/ml). The video demonstrates a posterior approach to laparoscopic resection of segment 7. RESULTS Operative time was 510 min. Blood loss was 800 ml and no perioperative transfusion was required. Postoperative recovery was uneventful and only simple oral analgesics were required for pain control. He was discharged on postoperative day 6. Histology showed a moderately differentiated hepatocellular carcinoma and all resection margins were clear. Subsequent follow-up CT scan 6 months after the operation showed no evidence of recurrence and α-fetoprotein level was normal. CONCLUSIONS Laparoscopic hepatectomy for HCC over the right posterior segment of the liver is feasible in selected patients with favorable results in terms of wound size, postoperative recovery, and hospital stay. Maximal liver conservation was achieved in performing oncologic anatomical resection of segment 7 instead of a posterior sectionectomy. On the other hand, a posterior approach was recommended because it allowed early intrahepatic control of pedicles and identification of the right hepatic vein to guide parenchymal transection along the intersegmental plane.
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Affiliation(s)
- K C Cheng
- Department of Surgery, Kwong Wah Hospital, Kowloon, Hong Kong SAR, China.
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Hui J, Holen KD, Gordon GB, Obermeyer K, Qian J. Causality attribution of adverse events (AEs) as reported in two industry-sponsored phase III placebo-controlled clinical trials. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e16533] [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: 11/20/2022] Open
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