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Han X, He X, Wang X, Luo L, Li Y, Lai D, Liu H, Liu J, Rao S, Liu G. Comparative analysis of tropomyosin allergenicity in three different species of molluscs: insights into the role of amino acid composition in IgE epitopes. Food Funct 2024. [PMID: 38639426 DOI: 10.1039/d4fo00958d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Limited research has been conducted on the differences in allergenicity among Alectryonella plicatula tropomyosin (ATM), Haliotis discus hannai tropomyosin (HTM), and Mimachlamys nobilis tropomyosin (MTM) in molluscs. Our study aimed to comprehensively analyze and compare their immunoreactivity, sensitization, and allergenicity while simultaneously elucidating the underlying molecular mechanisms involved. We assessed the immune binding activity of TM utilizing 86 sera from allergic patients and evaluated sensitization and allergenicity through two different types of mouse models. The dot-blot and basophil activation test assays revealed strong immunoreactivity for HTM, ATM, and MTM, with HTM exhibiting significantly lower levels compared to ATM. In the BALB/c mouse sensitization model, all TM groups stimulated the production of specific antibodies, elicited IgE-mediated immediate hypersensitivity responses, and caused an imbalance in the IL-4/IFN-γ ratio. Similarly, in the BALB/c mouse model of food allergy, all TM variants induced IgE-mediated type I hypersensitivity responses, leading to the development of food allergies characterized by clinical symptoms and an imbalance in the IL-4/IFN-γ ratio. The stimulation ability of sensitization and the severity of food allergies consistently ranked as ATM > MTM > HTM. Through an in-depth analysis of non-polar amino acid frequency and polar hydrogen bonds, HTM exhibited higher frequencies of non-polar amino acids in its amino acid sequence and IgE epitopes, in comparison with ATM and MTM. Furthermore, HTM demonstrated a lower number of polar hydrogen bonds in IgE epitopes. Overall, HTM exhibited the lowest allergenic potential in both allergic patients and mouse models, likely due to its lower polarity in the amino acid sequence and IgE epitopes.
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Affiliation(s)
- Xinyu Han
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Xinrong He
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Xinya Wang
- Department of Bioinformatics, Fujian Key Laboratory of Medical Bioinformatics, Institute of Precision Medicine, School of Medical Technology and Engineering, Fujian Medical University, Fuzhou, Fujian 350122, China
| | - Lianzhong Luo
- Engineering Research Center of Marine Biopharmaceutical Resources, Fujian Province University, Xiamen Medical College, Xiamen, Fujian 361023, China
| | - Yubao Li
- Medical Center of Jimei University, Xiamen, Fujian 361021, China
| | - Dong Lai
- Xiamen Medical College Affiliated Second Hospital, Xiamen, Fujian 361021, China
| | - Hong Liu
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Jingwen Liu
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Shitao Rao
- Department of Bioinformatics, Fujian Key Laboratory of Medical Bioinformatics, Institute of Precision Medicine, School of Medical Technology and Engineering, Fujian Medical University, Fuzhou, Fujian 350122, China
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China.
| | - Guangming Liu
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
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Gao S, Huan F, Wu MX, Ni LN, Gu Y, Liu YX, Han TJ, Liu M, Lai D, Liu GM. Mutation of Disulfide Bond Sites Reduces the Immunoreactivity of Cra a 4 by Changing the Structural Characteristics. J Agric Food Chem 2024. [PMID: 38598840 DOI: 10.1021/acs.jafc.4c01120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
Sarcoplasmic calcium-binding protein (Cra a 4) from Crassostrea angulata belongs to the EF-hand superfamily, and understanding of its structure-allergenicity relationship is still insufficient. In this study, chemical denaturants were used to destroy the structure of Cra a 4, showing that disruption of the structure reduced its IgG-/IgE-binding activity. To explore which critical amino acid site affects the allergenicity of Cra a 4, the mutants were obtained by site-directed mutations in the disulfide bonds site (C97), conformational epitopes (I105, D114), or Ca2+-binding region (D106, D110) and their IgG-/IgE-binding activity was reduced significantly using serological tests. Notably, C97A had the lowest immunoreactivity. In addition, two conformational epitopes of Cra 4 were verified. Meanwhile, the increase of the α-helical content, surface hydrophobicity, and surface electrostatic potential of C97A affected its allergenicity. Overall, the understanding of the structure-allergenicity relationship of Cra a 4 allowed the development of a hypoallergenic mutant.
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Affiliation(s)
- Shuai Gao
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen 361021, Fujian, China
| | - Fei Huan
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen 361021, Fujian, China
| | - Ming-Xuan Wu
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen 361021, Fujian, China
| | - Ling-Na Ni
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen 361021, Fujian, China
| | - Yi Gu
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen 361021, Fujian, China
| | - Ya-Xin Liu
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen 361021, Fujian, China
| | - Tian-Jiao Han
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen 361021, Fujian, China
| | - Meng Liu
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen 361021, Fujian, China
| | - Dong Lai
- The Second Affiliated Hospital of Xiamen Medical College, Xiamen 361021, Fujian, China
| | - Guang-Ming Liu
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen 361021, Fujian, China
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Lai D. IXPE detection of polarized X-rays from magnetars and photon mode conversion at QED vacuum resonance. Proc Natl Acad Sci U S A 2023; 120:e2216534120. [PMID: 37071677 PMCID: PMC10151469 DOI: 10.1073/pnas.2216534120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 03/13/2023] [Indexed: 04/19/2023] Open
Abstract
The recent observations of the anomalous X-ray pulsars 4U 0142+61 and 1RXS J170849.0-400910 by the Imaging X-ray Polarimetry Explorer (IXPE) opened up a new avenue to study magnetars, neutron stars endowed with superstrong magnetic fields (B ≳ 1014 G). The detected polarized X-rays from 4U 0142+61 exhibit a 90° linear polarization swing from low photon energies (E ≲ 4 keV) to high energies (E ≳ 5.5 keV). We show that this swing can be explained by photon polarization mode conversion at the vacuum resonance in the magnetar atmosphere; the resonance arises from the combined effects of plasma-induced birefringence and Quantum electrodynamics (QED)-induced vacuum birefringence in strong magnetic fields. This explanation suggests that the atmosphere of 4U 0142 is composed of partially ionized heavy elements and that the surface magnetic field is comparable to or less than 1014 G, consistent with the dipole field inferred from the measured spindown. It also implies that the spin axis of 4U 0142+61 is aligned with its velocity direction. The polarized X-rays from 1RXS J170849.0-400910 do not show such 90° swing, consistent with magnetar atmospheric emission with B ≳ 5 × 1014 G.
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Affiliation(s)
- Dong Lai
- Cornell Center for Astrophysics and Planetary Science, Department of Astronomy, Cornell University, Ithaca, NY14853
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Abstract
OBJECTIVE The objective of this review was to answer the global prevalence of premature ovarian insufficiency (POI), and explore the associated factors including etiopathology and regions with POI. METHODS The search was conducted on reports from a total of eight databases that comprised Chinese National Knowledge Infrastructure (CNKI), Wanfang, China BioMedical Literature Database (CBM), PubMed, the Cochrane Library, Embase, Web of Science and Ovid MEDLINE® between 1946 and 2021. To analyze the source of heterogeneity, we performed subgroup analysis based on different etiologies and regions. Meta-analysis was carried out by Stata14.0 software. RESULTS The results showed that the global overall prevalence of POI among women was 3.5%. By subgroup analysis, the prevalence of POI among women with iatrogenic etiology was 11.2%, followed by autoimmunity (10.5%); the prevalence of POI by region was 11.3% at the highest in North America followed by South America (5.4%); and the prevalence of POI was 5.3% in a developing country, higher than 3.1% in a developed country. The trend of prevalence of POI over the past 20 years was on the rise (although p > 0.05). CONCLUSION We recommend that health and medical institutions strengthen public health awareness, achieve health-education goals related to POI and increase women's awareness of and attention to POI.
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Affiliation(s)
- M Li
- Department of Nosocomial Infection, The International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Y Zhu
- Shanghai Institute of Infectious Disease and Biosecurity, School of Public Health, Fudan University, Shanghai, P.R. China
- Department of Scientific Research, Children's Hospital of Fudan University, Shanghai, P.R. China
| | - J Wei
- Department of Pharmacy, Shanghai Chest Hospital, Shanghai, P.R. China
| | - L Chen
- Department of Nosocomial Infection, The International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - S Chen
- Department of Nosocomial Infection, The International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - D Lai
- Department of Nosocomial Infection, The International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
- Shanghai Key Laboratory of Embryo Original Diseases, The International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
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Tao Y, Wang J, Lyu X, Li N, Lai D, Liu Y, Zhang X, Li P, Cao S, Zhou X, Zhao Y, Ma L, Tao T, Feng Z, Li X, Yang F, Zhou H. Comprehensive Proteomics Analysis Identifies CD38-Mediated NAD + Decline Orchestrating Renal Fibrosis in Pediatric Patients With Obstructive Nephropathy. Mol Cell Proteomics 2023; 22:100510. [PMID: 36804530 PMCID: PMC10025283 DOI: 10.1016/j.mcpro.2023.100510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 01/28/2023] [Accepted: 02/06/2023] [Indexed: 02/18/2023] Open
Abstract
Obstructive nephropathy is one of the leading causes of kidney injury and renal fibrosis in pediatric patients. Although considerable advances have been made in understanding the pathophysiology of obstructive nephropathy, most of them were based on animal experiments and a comprehensive understanding of obstructive nephropathy in pediatric patients at the molecular level remains limited. Here, we performed a comparative proteomics analysis of obstructed kidneys from pediatric patients with ureteropelvic junction obstruction and healthy kidney tissues. Intriguingly, the proteomics revealed extensive metabolic reprogramming in kidneys from individuals with ureteropelvic junction obstruction. Moreover, we uncovered the dysregulation of NAD+ metabolism and NAD+-related metabolic pathways, including mitochondrial dysfunction, the Krebs cycle, and tryptophan metabolism, which led to decreased NAD+ levels in obstructed kidneys. Importantly, the major NADase CD38 was strongly induced in human and experimental obstructive nephropathy. Genetic deletion or pharmacological inhibition of CD38 as well as NAD+ supplementation significantly recovered NAD+ levels in obstructed kidneys and reduced obstruction-induced renal fibrosis, partially through the mechanisms of blunting the recruitment of immune cells and NF-κB signaling. Thus, our work not only provides an enriched resource for future investigations of obstructive nephropathy but also establishes CD38-mediated NAD+ decline as a potential therapeutic target for obstruction-induced renal fibrosis.
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Affiliation(s)
- Yuandong Tao
- Department of Pediatric Urology, Senior Department of Pediatrics, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China; National Engineering Laboratory for Birth Defects Prevention and Control of Key Technology, Beijing, China
| | - Jifeng Wang
- Laboratory of Proteomics & Key Laboratory of Protein and Peptide Pharmaceuticals Institute of Biophysics, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Xuexue Lyu
- Medical School of Chinese PLA, Beijing, China
| | - Na Li
- Laboratory of Proteomics & Key Laboratory of Protein and Peptide Pharmaceuticals Institute of Biophysics, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Dong Lai
- Department of Urology, The Third Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yuanyuan Liu
- Department of Dermatology, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xingyue Zhang
- Department of Dermatology, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Pin Li
- Department of Pediatric Urology, Senior Department of Pediatrics, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China; National Engineering Laboratory for Birth Defects Prevention and Control of Key Technology, Beijing, China
| | - Shouqing Cao
- Department of Urology, The Third Medical Center of Chinese PLA General Hospital, Beijing, China; College of Graduate, Hebei North University, Zhangjiakou, China
| | - Xiaoguang Zhou
- Department of Pediatric Urology, Senior Department of Pediatrics, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yang Zhao
- Department of Pediatric Urology, Senior Department of Pediatrics, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Lifei Ma
- Department of Pediatric Urology, Senior Department of Pediatrics, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Tian Tao
- Department of Pediatric Urology, Senior Department of Pediatrics, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Zhichun Feng
- National Engineering Laboratory for Birth Defects Prevention and Control of Key Technology, Beijing, China
| | - Xiubin Li
- Department of Urology, The Third Medical Center of Chinese PLA General Hospital, Beijing, China.
| | - Fuquan Yang
- Laboratory of Proteomics & Key Laboratory of Protein and Peptide Pharmaceuticals Institute of Biophysics, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China.
| | - Huixia Zhou
- Department of Pediatric Urology, Senior Department of Pediatrics, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China; National Engineering Laboratory for Birth Defects Prevention and Control of Key Technology, Beijing, China; Medical School of Chinese PLA, Beijing, China.
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Yu R, Leung G, Lai D, Tong C, Tam LY, Cheng C, Kong S, Woo J. Assessing the Readiness for Implementing the World Health Organization's ICOPE Approach in Hong Kong: Perspectives from Social Care and Policy Stakeholders. J Frailty Aging 2023; 12:126-133. [PMID: 36946709 DOI: 10.14283/jfa.2023.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Although integrated care has been considered a key strategy in reforming health systems around the world, it seems hard to realise in practice, particularly in the part of medical social integration. Worse still, little is known about the capacity of social care professionals who implement it, or their perceived roles and responsibilities, as well as the barriers and facilitators that stakeholders from the health and social sectors identify as factors affecting the ICOPE implementation process. Therefore, the present study was performed to probe into these issues. Data were collected from an online survey based on the WHO ICOPE scorecard (N = 34), and focus groups with policy makers, managers, health and social care professionals (N = 47). Inductive analyses were performed in accordance with the service and system levels within the WHO ICOPE implementation framework. While the findings from the scorecard survey highlight the gap in actualizing the ICOPE approach within the existing social services and care structures, we found support for a model of integrated care underpinned by the WHO ICOPE approach. Factors that may hinder and facilitate ICOPE implementation include workforce capacity-building, coordinated networks and partnerships, and financial mechanisms. This finding can help inform subsequent actions that further support health and social care advancement and collaboration, and the implementation of the ICOPE approach.
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Affiliation(s)
- R Yu
- Ruby Yu, The Chinese University of Hong Kong, Hong Kong,
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Yu R, Lai D, Leung G, Tong C, Yuen S, Woo J. A Dyadic Cooking-Based Intervention for Improving Subjective Health and Well-Being of Older Adults with Subjective Cognitive Decline and Their Caregivers: A Randomized Controlled Trial. J Nutr Health Aging 2023; 27:824-832. [PMID: 37960905 DOI: 10.1007/s12603-023-1990-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 09/04/2023] [Indexed: 11/15/2023]
Abstract
OBJECTIVES Evidence on the effectiveness of cooking activities as a well-being promotion intervention for older adults with subjective cognitive decline (SCD) and their caregivers is scarce. In view of this, a randomized controlled trial was conducted to examine whether a dyadic cooking-based intervention can improve the subjective health and well-being of older adults with SCD and their caregivers, as well as the cooking competence of the former group. DESIGN Randomized controlled trial. SETTING Community. PARTICIPANTS Sixty pairs of community-dwelling older adults aged 60 years or above with SCD (mean age = 78.4 years) and their caregivers (mean age = 65.3 years) were randomly assigned to the intervention group (N = 30 pairs) and the wait-list control group (N = 30 pairs). INTERVENTION The intervention was an innovative 5-week (two hours per week) dyadic cooking-based intervention employing procedural learning methods specifically adapted for older adults with SCD. MEASUREMENTS The outcome measures included 1) a well-being index composed by four indicators: life satisfaction, feeling of happiness, sense of purpose and meaning in life, and perceived health, and 2) cooking competence. RESULTS For both older adults with SCD and their caregivers, the increases in the well-being index were significantly greater in the intervention group than in the control group (β = 0.508, 95% CI [0.036, 0.980]). For older adults with SCD, the increases in the cooking competence score were significantly greater in the intervention group than in the control group (β = 1.629, 95% CI [0.165, 3.071]). CONCLUSION The dyadic cooking-based intervention resulted in improvements in the cooking competence and well-being of older adults with SCD, as well as the well-being of caregivers.
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Affiliation(s)
- R Yu
- Ruby Yu, Jockey Club Institute of Ageing, The Chinese University of Hong Kong, Hong Kong,
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Yu R, Lai D, Leung G, Woo J. Trajectories of Intrinsic Capacity: Determinants and Associations with Disability. J Nutr Health Aging 2023; 27:174-181. [PMID: 36973922 DOI: 10.1007/s12603-023-1881-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
OBJECTIVES Intrinsic capacity (IC) declines progressively with age, thereby increasing the risk of disability. However, it is less known whether IC trajectories are associated with disability. This study aims to identify the different patterns of IC trajectories in older people, and examine their determinants and associations with Instrumental Activities of Daily Living (IADL). DESIGN Cohort study. SETTING Community centres in different regions in Hong Kong. PARTICIPANTS AND MEASUREMENTS Longitudinal data from community-dwelling older people aged 60 years or above (n = 1371) collected between 2016 and 2021 was analysed. Their mean age was 74.5 years, and 78.7% of them were female. Repeated measurements of a set of 14 self-reported items were used to generate IC scores at four time points using a bi-factor model. Latent class growth analysis was performed to identify classes with distinct IC trajectories. The association between class membership and IADL disability was then examined using logistic regression. RESULTS Three distinct IC trajectories were identified. The 1st class included those with the highest level of baseline IC and the least declining trajectory, whereas the 3rd class was composed by those with the lowest level of baseline IC and the most declining trajectory. Older age, female gender, lower perceived financial adequacy, living in public or subsidized housing, and chronic diseases were associated with the 3rd class. After adjusting for demographic factors, socioeconomic status, and the number of chronic diseases, the 1st class was more likely to preserve IADL when compared against the 2nd class, with OR being 3.179 (95% CI: 2.152-4.793), whereas for the 3rd class, the OR was 0.253 (95% CI: 0.178-0.359). CONCLUSION Monitoring IC trajectories is of relevance to clinical practice, as it helps shift the focus from treating acute episodes of illness to preserving the functional ability of older people.
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Affiliation(s)
- R Yu
- Ruby Yu, Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, New Territories, Hong Kong, China, Tel: (852) 3943 5142, Fax: (852) 2637 9215, E-mail:
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Yu R, Lai D, Leung G, Tam LY, Cheng C, Kong S, Tong C, Cheung B, Woo J. Moving towards the ICOPE Approach: Evaluation of Community-Based Intervention Activities on Improving Intrinsic Capacity. J Nutr Health Aging 2023; 27:1028-1037. [PMID: 37997725 DOI: 10.1007/s12603-023-2003-0] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 09/12/2023] [Indexed: 11/25/2023]
Abstract
OBJECTIVES Different types of community-based intervention activities may have differential effects in improving the intrinsic capacity (IC) of older people. This study aims to (i) identify subgroups of older people based on their IC impairments, (ii) examine the differential associations between different types of activity participations and change in IC across subgroups, and (iii) assess whether the activity participation patterns of older people align with the way that would benefit them the most. METHODS Participants were community-dwelling older people aged 60 years or above. They were screened for IC impairments at baseline, and their participation records of different types (cognitive, physical, nutritional, mental, and social) of intervention activities were collected for one year. An aggregated IC score was created based on four IC domains including cognitive (self-rated memory), locomotor (self-rated difficulties in walking), vitality (self-rated weight loss), and psychological (subjective well-being). Cluster analysis was used to group homogenous participants. Mixed-effects regression was used to examine the associations between activity counts (i.e., number of sessions participated) and change in IC. Activity participation patterns were also compared across subgroups. RESULTS Data were obtained from 7,357 participants (mean age = 74.72 years). Four clusters were identified, including those who were relatively robust (cluster 1, N = 4,380, 59.5%), those who had cognitive decline (cluster 2, N = 2,134, 29.0%), those who had impaired mobility and vitality (cluster 3, N = 319, 4.3%), and those with poor psychological well-being (cluster 4, N = 524, 7.1%). Overall, activity count was associated with IC improvement (β = 0.073, 95% CI [0.037, 0.108]). However, as regards the cluster-specific results, different types of activities were associated with IC improvement for different specific clusters. For instance, cognitive activity count was associated with IC improvement only for cluster 2 (β = 0.491, 95% CI [0.258, 0.732]). Notably, none of the activity types were associated with IC improvement for cluster 1. Regarding the activity participation patterns, there were no significant differences across the four clusters (Wilk's Λ = 0.997, F = 1.400, p = .138). CONCLUSIONS AND IMPLICATIONS IC improvement depended on the activity types and IC status of older people. In view of this, a people-centred and targeted approach should be adopted to maximize the overall benefits of intervention activities.
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Affiliation(s)
- R Yu
- Ruby Yu, Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, E-mail:
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Lai D, Tian Y, Ji CF, Zang Y, Fu YS, Weng CF. Wasp-stung rat model translationally expresses the coagulopathy manifestations of human wasp patients. Hum Exp Toxicol 2023; 42:9603271221149013. [PMID: 36623279 DOI: 10.1177/09603271221149013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Two over 80 wasp stings male victims appeared severe abnormal coagulation were consecutively examined by thromboelastography (TEG) guided with heparinase during hospitalization. However, the cause of coagulopathy remains unsolved. Rats were applied to establish a wasp-stung animal model highly resembled the manifestations of wasp-stung patients. According body surface area conversion, Sprague-Dawley rats were stung based on wasp sting numbers (0, 4, 8, 12 stings; n = 6 each) with various exposure times (0, 1, 3, 6 h) to determine the simulation of coagulopathy. The blood R, K values, and angle degree of wasp-stung rats were measured by TEG. The TEG profiles of stung rats were found to be concomitant with that of wasp-stung patients. Data showed that the endogenous heparinization of rats was time-dependent. Compared to the TEG profile of eight stings given rat, the coagulation time of 2 mm clot formation at 3 h (R value) was longer than that at 0 h. The coagulation time was prolonged with increasing sting numbers when compared to the various stings at 1, 3, and 6 h exposed. Interestingly, there was observed the peak coagulation at 3 h of eight stings. The Ck-standard and Ck-heparinase at 3 h after 8 stings given were R: 9.6-4.4 min; K: 3.8-1.8 min; angle degree: 49.8-68.0, respectively. The original data of R, K values and angle degree in two wasp-stung victims were 11.7-13.6 min, 4.3-5.5 min, and 41.2-32.8° in CK-standard, respectively; whereas those of the CK-heparinase groups were 5.6-6.7 min, 2.4-2.5 min, and 59.5-58.8°, correspondingly. Conclusively, this massive wasp-stung animal model can be applied to the investigations of pathogenesis and provides a clinical strategy or guideline for clinical intervention.
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Affiliation(s)
- Dong Lai
- Medical Research Center, 519884The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China.,Intensive Care Unit, 519884The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
| | - Yan Tian
- Medical Research Center, 519884The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China.,Intensive Care Unit, 519884The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
| | - Chang-Fu Ji
- Medical Research Center, 519884The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China.,Intensive Care Unit, 519884The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
| | - Yuan Zang
- Medical Research Center, 519884The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China.,Intensive Care Unit, 519884The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
| | - Yaw-Syan Fu
- Medical Research Center, 519884The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China.,Department of Physiology, School of Basic Medical Science, 519884Xiamen Medical College, Xiamen, China
| | - Ching-Feng Weng
- Medical Research Center, 519884The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China.,Department of Physiology, School of Basic Medical Science, 519884Xiamen Medical College, Xiamen, China
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Feng H, Wang T, Ye J, Yang Y, Huang X, Lai D, Lv Z, Huang Y, Zhang X. SPI1 is a prognostic biomarker of immune infiltration and immunotherapy efficacy in clear cell renal cell carcinoma. Discov Oncol 2022; 13:134. [PMID: 36477668 PMCID: PMC9729685 DOI: 10.1007/s12672-022-00592-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 11/11/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Spi-1 proto-oncogene (SPI1), which encodes an ETS-domain transcription factor, can activate gene expression in myeloid and lymphoid lineages. The role of SPI1 in the tumor immune microenvironment in clear cell renal cell carcinoma (ccRCC) remains unknown. In this study, we investigated the possible role of SPI1 in ccRCC using an independent cohort and a comprehensive bioinformatics analysis. MATERIALS AND METHODS Quantitative real-time PCR, western blot and immunohistochemistry assays were used to compare the SPI1 expression levels between ccRCC tissues and normal tissues, analyze the relationships between SPI1 and CD68, CD8, CD4 expression levels, and explore the link between SPI1 and the efficacy of immunotherapy in our cohort. Tumor Immune Estimation Resource, UALCAN, cBioPortal, TISIDB database, and LinkedOmics database were used in our study. RESULTS SPI1 expression level was higher in ccRCC bulk tissues than in normal bulk tissues. SPI1 was an independent prognostic factor for poor overall survival and progression-free survival in patients with ccRCC. SPI1 expression was strongly related to the infiltration of immune cells and immune-related molecules. SPI1 was more highly expressed in tumor-infiltrating immune cells rather than in cancer cells. Non-responders to immunotherapy against ccRCC were more likely to express higher SPI1 levels than responders. Genes co-expressed with SPI1 primarily correlated with immune-related pathways. CONCLUSIONS SPI1 expression in tumor bulk tissues is associated with disease progression and poor prognosis, as well as high expression levels of immune markers and infiltration of immune cells. SPI1 can be used as a prognostic biomarker to monitor and evaluate immunotherapy efficacy.
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Affiliation(s)
- Huayi Feng
- Medical School of Chinese PLA, Beijing, 100853, China
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Tao Wang
- Medical School of Chinese PLA, Beijing, 100853, China
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Jiali Ye
- Medical School of Chinese PLA, Beijing, 100853, China
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Yang Yang
- Medical School of Chinese PLA, Beijing, 100853, China
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Xing Huang
- Medical School of Chinese PLA, Beijing, 100853, China
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Dong Lai
- Medical School of Chinese PLA, Beijing, 100853, China
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Zheng Lv
- Department of Urology, The Tianjin Third Central Hospital Affiliated of Nankai University, Tianjin, China
| | - Yan Huang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100853, China.
| | - Xu Zhang
- Medical School of Chinese PLA, Beijing, 100853, China.
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100853, China.
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12
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Huan F, Gao S, Han TJ, Liu M, Li MS, Yang Y, Chen YY, Lai D, Cao MJ, Liu GM. Identification of the Immunoglobulin E Epitope of Arginine Kinase, an Important Allergen from Crassostrea angulata. J Agric Food Chem 2022; 70:13419-13430. [PMID: 36205062 DOI: 10.1021/acs.jafc.2c05420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Arginine kinase (AK) was identified as an allergen in Crassostrea angulata. However, little information is available about its epitopes. In this study, AK from C. angulata was registered to the World Health Organization/International Union of Immunological Societies allergen nomenclature committee to be named as Cra a 2. The immunoglobulin G/immunoglobulin E-binding capacity of Cra a 2 was significantly reduced after chemical denaturation treatment. Further, eight linear mimotopes and five conformational mimotopes of Cra a 2 were obtained using phage panning. In addition to six linear epitopes that have been identified, two linear epitopes were verified by a synthetic peptide, of which L-Cra a 2-2 was conserved in shellfish. Four conformational epitopes were verified by site-directed mutation, among which mutation of C-Cra a 2-1 affected the structure and reduced the immunoreactivity of Cra a 2 most significantly. Overall, the identified epitopes may lay a foundation for the development of hypoallergenic oyster products through food processing.
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Affiliation(s)
- Fei Huan
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, People's Republic of China
| | - Shuai Gao
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, People's Republic of China
| | - Tian-Jiao Han
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, People's Republic of China
| | - Meng Liu
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, People's Republic of China
| | - Meng-Si Li
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, People's Republic of China
| | - Yang Yang
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, People's Republic of China
| | - Yi-Yu Chen
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, People's Republic of China
| | - Dong Lai
- Second Affiliated Hospital of Xiamen Medical College, Xiamen, Fujian 361021, People's Republic of China
| | - Min-Jie Cao
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, People's Republic of China
| | - Guang-Ming Liu
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, People's Republic of China
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13
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Lai D, Wang L, Li JR, Chen C, Zhao WL, Yuan Q, Ma X, Zhang X. Corrigendum: Transcriptional progressive patterns from mild to severe renal ischemia/reperfusion-induced kidney injury in mice. Front Genet 2022; 13:1011276. [PMID: 36176290 PMCID: PMC9514566 DOI: 10.3389/fgene.2022.1011276] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Dong Lai
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Lei Wang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Jia-Rui Li
- Biomedical Innovation Center, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Chen Chen
- Biomedical Innovation Center, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Wen-Lei Zhao
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Qing Yuan
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
- *Correspondence: Xu Zhang, ; Xin Ma, ; Qing Yuan,
| | - Xin Ma
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
- *Correspondence: Xu Zhang, ; Xin Ma, ; Qing Yuan,
| | - Xu Zhang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
- *Correspondence: Xu Zhang, ; Xin Ma, ; Qing Yuan,
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14
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Chen W, Wang H, Lu Y, Huang Y, Xuan Y, Li X, Guo T, Wang C, Lai D, Wu S, Zhao W, Mai H, Li H, Wang B, Ma X, Zhang X. GTSE1 promotes tumor growth and metastasis by attenuating of KLF4 expression in clear cell renal cell carcinoma. J Transl Med 2022; 102:1011-1022. [PMID: 36775416 DOI: 10.1038/s41374-022-00797-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/29/2022] [Accepted: 04/18/2022] [Indexed: 11/09/2022] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) is one of the most common malignant tumors and is characterized by a poor prognosis. Although G2- and S -phase expressed-1 (GTSE1) is known to be involved in the progression and metastasis of various cancers, its significance and mechanism in ccRCC remain unknown. In the present study, we found that GTSE1 was overexpressed in ccRCC tissues, especially in metastatic samples. Moreover, high GTSE1 expression was positively correlated with higher pT stage, tumor size, clinical stage, and WHO/ISUP grade and worse prognosis. And GTSE1 expression served as an independent prognostic factor for overall survival (OS). In addition, GTSE1 knockdown inhibited ccRCC cell proliferation, migration, and invasion, and enhanced cell apoptosis in vitro and in vivo. GTSE1 was crucial for epithelial-mesenchymal transition (EMT) in ccRCC. Mechanistically, GTSE1 depletion could upregulate the expression of Krüppel-like factor 4 (KLF4), which acts as a tumor suppressor in ccRCC. Downregulation of KLF4 effectively rescued the inhibitory effect induced by GTSE1 knockdown and reversed the EMT process. Overall, our results revealed that GTSE1 served as an oncogene regulating EMT through KLF4 in ccRCC, and that GTSE1 could also serve as a novel prognostic biomarker and may represent a promising therapeutic target for ccRCC.
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Affiliation(s)
- Weihao Chen
- Department of Urology, the Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of Chinese PLA, Beijing, 100853, China
| | - Hanfeng Wang
- Department of Urology, the Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
| | - Yongliang Lu
- Department of Urology, the Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of Chinese PLA, Beijing, 100853, China
| | - Yan Huang
- Department of Urology, the Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
| | - Yundong Xuan
- Department of Urology, the Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of Chinese PLA, Beijing, 100853, China
| | - Xiubin Li
- Department of Urology, the Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
| | - Tao Guo
- Medical School of Chinese PLA, Beijing, 100853, China
- Department of Paediatrics, the Seventh Medical Center, Chinese PLA General Hospital, Beijing, 100700, China
| | - Chenfeng Wang
- Department of Urology, the Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- Medical School of Chinese PLA, Beijing, 100853, China
| | - Dong Lai
- Department of Urology, the Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
| | - Shengpan Wu
- Department of Urology, the Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
| | - Wenlei Zhao
- Medical School of Chinese PLA, Beijing, 100853, China
| | - Haixing Mai
- Department of Urology, the Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510280, China
| | - Hongzhao Li
- Department of Urology, the Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
| | - Baojun Wang
- Department of Urology, the Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China.
| | - Xin Ma
- Department of Urology, the Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China.
| | - Xu Zhang
- Department of Urology, the Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China.
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15
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Ju D, Liang Y, Hou G, Zheng W, Zhang G, Dun X, Wei D, Yan F, Zhang L, Lai D, Yuan J, Zheng Y, Wang F, Meng P, Wang Y, Yu W, Yuan J. FBP1
/miR-24-1/enhancer axis activation blocks renal cell carcinoma progression via Warburg effect. Front Oncol 2022; 12:928373. [PMID: 35978816 PMCID: PMC9376222 DOI: 10.3389/fonc.2022.928373] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 06/30/2022] [Indexed: 11/13/2022] Open
Abstract
Warburg effect is a pivotal hallmark of cancers and appears prevalently in renal cell carcinoma (RCC). FBP1 plays a negative role in Warburg effect as a rate-limiting enzyme in gluconeogenesis, yet its mechanism in RCC remains to be further characterized. Herein, we revealed that FBP1 was downregulated in RCC tissue samples and was related to the poor survival rate of RCC. Strikingly, miR-24-1 whose DNA locus is overlapped with enhancer region chr9:95084940-95087024 was closely linked with the depletion of FBP1 in RCC. Of note, miRNAs like miR-24-1 whose DNA loci are enriched with H3K27ac and H3K4me1 modifications are belonging to nuclear activating miRNAs (NamiRNAs), which surprisingly upregulate target genes in RCC through enhancer beyond the conventional role of repressing target gene expression. Moreover, miR-24-1 reactivated the expression of FBP1 to suppress Warburg effect in RCC cells, and subsequently inhibited proliferation and metastasis of RCC cells. In mechanism, the activating role of miR-24-1 was dependent on enhancer integrity by dual luciferase reporter assay and CRISPR/Cas9 system. Ultimately, animal assay in vivo validated the suppressive function of FBP1 on 786-O and ACHN cells. Collectively, the current study highlighted that activation of FBP1 by enhancer-overlapped miR-24-1 is capable of contributing to Warburg effect repression through which RCC progression is robustly blocked, providing an alternative mechanism for RCC development and as well implying a potential clue for RCC treatment strategy.
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Affiliation(s)
- Dongen Ju
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Ying Liang
- Laboratory of RNA Epigenetics, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Public Health Clinical Center and Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute, Fudan University, Shanghai, China
- Department of Pharmacy, Precision Pharmacy and Drug Development Center, Tangdu Hospital, Fourth Military Medical University, Xi’an, China
| | - Guangdong Hou
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Wanxiang Zheng
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Geng Zhang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Xinlong Dun
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Di Wei
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Fei Yan
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Lei Zhang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Dong Lai
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Jiarui Yuan
- Clinical Medicine Department, St. George’s University School of Medicine, Saint George, Grenada
| | - Yu Zheng
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an, China
- Medical Innovation Center, Fourth Military Medical Univeristy, Xi’an, China
| | - Fuli Wang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Ping Meng
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Yong Wang
- Department of Urology, Tangdu Hospital, Fourth Military Medical University, Xi’an, China
- *Correspondence: Yong Wang, ; Wenqiang Yu, ; Jianlin Yuan,
| | - Wenqiang Yu
- Laboratory of RNA Epigenetics, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
- Shanghai Public Health Clinical Center and Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute, Fudan University, Shanghai, China
- *Correspondence: Yong Wang, ; Wenqiang Yu, ; Jianlin Yuan,
| | - Jianlin Yuan
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an, China
- *Correspondence: Yong Wang, ; Wenqiang Yu, ; Jianlin Yuan,
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16
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Yun X, Li MS, Chen Y, Huan F, Cao MJ, Lai D, Chen GX, Liu GM. Characterization, Epitope Identification, and Cross-reactivity Analysis of Tropomyosin: An Important Allergen of Crassostrea angulata. J Agric Food Chem 2022; 70:9201-9213. [PMID: 35848932 DOI: 10.1021/acs.jafc.2c03754] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Oyster is a common shellfish product in China, which is associated with food allergy. However, there is still lack of research on allergens in oysters. In this study, tropomyosin (TM), an important allergen of Crassostrea angulata, was purified and identified by mass spectrometry. Subsequently, TM was cloned and expressed, with a sequence of size 852 bp, encoding 284 amino acid residues. The results of circular dichroism, digestion assay, inhibition enzyme-linked immunosorbent assay, and basophil activation test showed that recombinant TM had similar physicochemical properties and immunological properties to native TM. Furthermore, two conformational mimotopes were obtained and 10 IgE linear epitopes were verified. Meanwhile, different degrees of cross-reactivity were observed between C. angulata TM and the other 8 shellfish TMs using antibodies and serological analysis, which may relate to the 3 conserved epitope regions. These findings are expected to provide a theoretical basis for the molecular diagnosis of oyster allergy and cross-reactivity among shellfish.
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Affiliation(s)
- Xiao Yun
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Meng-Si Li
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Yiyu Chen
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Fei Huan
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Min-Jie Cao
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Dong Lai
- The Second Affiliated Hospital of Xiamen Medical College, Xiamen, Fujian 361021, China
| | - Gui-Xia Chen
- Women and Children's Hospital Affiliated to Xiamen University, Xiamen, Fujian 361003, China
| | - Guang-Ming Liu
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
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17
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Lai D, Wang L, Li JR, Chen C, Zhao WL, Yuan Q, Ma X, Zhang X. Transcriptional progressive patterns from mild to severe renal ischemia/reperfusion-induced kidney injury in mice. Front Genet 2022; 13:874189. [PMID: 35938014 PMCID: PMC9355309 DOI: 10.3389/fgene.2022.874189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 07/01/2022] [Indexed: 12/02/2022] Open
Abstract
The renal ischemia/reperfusion (I/R)-induced acute kidney injury incidence after nephron-sparing surgery for localized renal tumors is 20%, but the biological determinant process of postoperative acute kidney injury remains unclear. Using Gene Expression Omnibus database (GSE192883) and several bioinformatics analyses (discrete time points analysis, gene set enrichment analysis, dynamic network biomarker analysis, etc), combined with the establishment of the I/R model for verification, we identified three progressive patterns involving five core pathways confirmed using gene set enrichment analysis and six key genes (S100a10, Pcna, Abat, Kmo, Acadm, and Adhfe1) verified using quantitative polymerase chain reaction The dynamic network biomarker (DNB) subnetwork composite index value is the highest in the 22-min ischemia group, suggesting the transcriptome expression level fluctuated sharply in this group, which means 22-min ischemia is an critical warning point. This study illustrates the core molecular progressive patterns from mild to severe I/R kidney injury, laying the foundation for precautionary biomarkers and molecular intervention targets for exploration. In addition, the safe renal artery blocking time of nephron-sparing surgery that we currently accept may not be safe anymore.
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Affiliation(s)
- Dong Lai
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Lei Wang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Jia-Rui Li
- Biomedical Innovation Center, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Chen Chen
- Biomedical Innovation Center, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Wen-Lei Zhao
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Qing Yuan
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Xin Ma
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Xu Zhang
- Department of Urology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
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18
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Wu J, Fu YS, Lin K, Huang X, Chen YJ, Lai D, Kang N, Huang L, Weng CF. A narrative review: The pharmaceutical evolution of phenolic syringaldehyde. Biomed Pharmacother 2022; 153:113339. [PMID: 35780614 DOI: 10.1016/j.biopha.2022.113339] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/15/2022] [Accepted: 06/24/2022] [Indexed: 12/11/2022] Open
Abstract
To better understand the pharmacological characters of syringaldehyde (SA), which is a key-odorant compound of whisky and brandy, this review article is the first to compile the published literature for molecular docking that were subsequently validated by in vitro and in vivo assays to predict and develop insights into the medicinal properties of SA in terms of anti-oxidation, anti-inflammation, and anti-diabetes. The molecular docking displayed significantly binding affinity for SA towards tumor necrosis factor-α, interleukin-6, and antioxidant enzymes when inflammation from myocardial infarction and spinal cord ischemia. Moreover, SA nicely docked with dipeptidyl peptidase-IV, glucagon-like peptide 1 receptor, peroxisome proliferator-activated receptor, acetylcholine M2 receptor, and acetylcholinesterase in anti-diabetes investigations. These are associated with (1) an increase glucose utilization and insulin sensitivity to an anti-hyperglycemic effect; and (2) to potentiate intestinal contractility to abolish the α-amylase reaction when concurrently reducing retention time and glucose absorption of the intestinal tract to achieve a glucose-lowering effect. In silico screening of multi-targets concomitantly with preclinical tests could provide a potential exploration for new indications for drug discovery and development.
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Affiliation(s)
- Jingyi Wu
- Anatomy and Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Yaw-Syan Fu
- Anatomy and Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China; Institute of Respiratory Disease, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Kaihuang Lin
- Anatomy and Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Xin Huang
- Anatomy and Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Yi-Jing Chen
- Anatomy and Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Dong Lai
- Medical Research Center, the Second Affiliated Hospital of Xiamen Medical College, Xiamen 361021, Fujian, China.
| | - Ning Kang
- Department of Otorhinolaryngology, the Second Affiliated Hospital of Xiamen Medical College, Xiamen 361021, Fujian, China.
| | - Liyue Huang
- Anatomy and Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Ching-Feng Weng
- Anatomy and Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China; Institute of Respiratory Disease, Department of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
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19
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Zhang J, Li Y, Lai D, Lu D, Lan Z, Kang J, Xu Y, Cai S. Vitamin D Status Is Negatively Related to Insulin Resistance and Bone Turnover in Chinese Non-Osteoporosis Patients With Type 2 Diabetes: A Retrospective Cross-Section Research. Front Public Health 2022; 9:727132. [PMID: 35223754 PMCID: PMC8873521 DOI: 10.3389/fpubh.2021.727132] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 12/29/2021] [Indexed: 11/21/2022] Open
Abstract
Background and Objectives Vitamin D status is closely related to blood glucose and bone metabolism in patients with type 2 diabetes (T2DM). Vitamin D affects bone density and bone metabolism, leading to osteopenia and osteoporosis. Insulin resistance increases the risk of osteoporosis in patients with T2DM. Our previous studies have shown a negative correlation between insulin resistance and 25-hydroxy vitamin D [25(OH)D] levels. The aim of the present study was to determine the association between vitamin D status and insulin resistance and bone metabolism in patients with T2DM. Subjects and Methods A retrospective cross-section research was carried out among 109 non-osteoporosis patients with T2DM. Their fasting blood glucose (FBG), 25(OH)D, fasting blood insulin (FINS), glycosylated hemoglobin (HbA1c), serum creatinine (SCr), calcium (Ca), phosphorus (P), insulin-like growth factor-1 (IGF-1), bone alkaline phosphatase (BALP), body mass index (BMI), glomerular filtration rate (eGFR), homeostatic model estimates of insulin resistance (HOMA-IR), and calcium-phosphorus product were measured routinely. Results Both in men and women, 25(OH)D was negatively correlated with BALP (β = −0. 369, p ≤ 0.001)and HOMA-IR (β = −0.349, p ≤ 0.001), and positively associated with IGF-1(β = 0.672, p ≤ 0.05). There was a negative correlation between HOMA-IR and IGF-1 (β = −0.464, p ≤ 0.001), and a positive correlation between HOMA-IR and BALP (β = 0.344, p ≤ 0.05), adjusted by confounding factors. Conclusion Our study demonstrates that 25(OH)D concentrations are negatively correlated with insulin resistance and bone turnover. Insulin resistance increases with the decrease of 25(OH)D concentration, which can enhance bone turnover, and increases the risk of osteoporosis in non-osteoporosis patients with T2DM. This is the first study to clarify the relationship between serum vitamin D status, insulin resistance, and bone metabolism in non-osteoporosis patients with T2DM in China.
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Affiliation(s)
- Jie Zhang
- Xiamen Second Hospital Affiliated Xiamen Medical College, Xiamen, China
- Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, China
- *Correspondence: Jie Zhang
| | - Yangjun Li
- Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, China
| | - Dong Lai
- Xiamen Second Hospital Affiliated Xiamen Medical College, Xiamen, China
| | - Di Lu
- Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, China
| | - Zhenhao Lan
- Xiamen Second Hospital Affiliated Xiamen Medical College, Xiamen, China
| | - Junfei Kang
- Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, China
| | - Yidong Xu
- Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo, China
| | - Shaofang Cai
- Xiamen Second Hospital Affiliated Xiamen Medical College, Xiamen, China
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20
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Lai D, Funez-Depagnier G, Duenas-Bianchi L, Lavergne A, Battat R, Ahmed W, Schwartzman M, Lima S, Khan S, Chong PS, Sonnenberg G, Artis D, Lukin D, Scherl E, Longman RS. Joint Disease Activity in Inflammatory Bowel Disease-associated Peripheral Spondyloarthritis Stratifies Therapeutic Response. Gastro Hep Adv 2022; 1:137-140. [PMID: 35441160 PMCID: PMC9015680 DOI: 10.1016/j.gastha.2021.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- D Lai
- Jill Roberts Center for IBD, Weill Cornell Medicine, New York, New York
| | - G Funez-Depagnier
- Jill Roberts Center for IBD, Weill Cornell Medicine, New York, New York
| | - L Duenas-Bianchi
- Jill Roberts Center for IBD, Weill Cornell Medicine, New York, New York
| | - A Lavergne
- Jill Roberts Center for IBD, Weill Cornell Medicine, New York, New York
| | - R Battat
- Jill Roberts Center for IBD, Weill Cornell Medicine, New York, New York
| | - W Ahmed
- Jill Roberts Center for IBD, Weill Cornell Medicine, New York, New York
| | - M Schwartzman
- Division of Rheumatology, Hospital for Special Surgery, New York, New York
| | - S Lima
- Jill Roberts Institute for Research in IBD, Weill Cornell Medicine, New York, New York
| | - S Khan
- Jill Roberts Institute for Research in IBD, Weill Cornell Medicine, New York, New York
| | - P S Chong
- Jill Roberts Institute for Research in IBD, Weill Cornell Medicine, New York, New York
| | - G Sonnenberg
- Jill Roberts Institute for Research in IBD, Weill Cornell Medicine, New York, New York
| | - D Artis
- Jill Roberts Institute for Research in IBD, Weill Cornell Medicine, New York, New York
| | - D Lukin
- Jill Roberts Center for IBD, Weill Cornell Medicine, New York, New York
| | - E Scherl
- Jill Roberts Center for IBD, Weill Cornell Medicine, New York, New York
| | - R S Longman
- Jill Roberts Center for IBD, Weill Cornell Medicine, New York, New York
- Jill Roberts Institute for Research in IBD, Weill Cornell Medicine, New York, New York
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21
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Zhou K, Liu Y, Yuan Q, Lai D, Guo S, Wang Z, Su L, Zhang H, Wang X, Guo W, Ji X, Gu X, Huang Q, Guo X, Xing J. Next-Generation Sequencing-Based Analysis of Urine Cell-Free mtDNA Reveals Aberrant Fragmentation and Mutation Profile in Cancer Patients. Clin Chem 2022; 68:561-573. [PMID: 34993545 DOI: 10.1093/clinchem/hvab268] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 11/05/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND Many studies have demonstrated the high efficacy of cell-free nuclear DNA in cancer diagnostics. Compared to nuclear DNA, mitochondrial DNA (mtDNA) exhibits distinct characteristics, including multiple copies per cell and higher mutation frequency. However, the potential applicability of cell-free mtDNA (cf-mtDNA) in plasma and urine remains poorly investigated. METHODS Here, we comprehensively analyzed the fragmentomic and mutational characteristics of cf-mtDNA in urine and plasma samples from controls and cancer patients using next-generation sequencing. RESULTS Compared to plasma cf-mtDNA, urine cf-mtDNA exhibited increased copy numbers and wider spread in fragment size distributions. Based on 2 independent animal models, urine cf-mtDNA originated predominantly from local shedding and transrenal excretion. Further analysis indicated an enhanced fragmentation of urine cf-mtDNA in renal cell carcinoma (RCC) and colorectal cancer (CRC) patients. Using the mtDNA sequence of peripheral blood mononuclear cells for reference, the mutant fragments were shorter than wild-type fragments in urine cf-mtDNA. Size selection of short urine cf-mtDNA fragments (<150 bp) significantly enhanced the somatic mutation detection. Our data revealed remarkably different base proportions of fragment ends between urine and plasma cf-mtDNA that also were associated with fragment size. Moreover, both RCC and CRC patients exhibited significantly higher T-end and lower A-end proportions in urine cf-mtDNA than controls. By integrating the fragmentomic and mutational features of urine cf-mtDNA, our nomogram model exhibited a robust efficacy for cancer diagnosis. CONCLUSIONS Our proof-of-concept findings revealed aberrant fragmentation and mutation profiles of urine cf-mtDNA in cancer patients that have diagnostic potential.
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Affiliation(s)
- Kaixiang Zhou
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Yang Liu
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Qing Yuan
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, China
| | - Dong Lai
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Shanshan Guo
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Zhenni Wang
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Liping Su
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Huanqin Zhang
- Department of Medical Technology, College of Medical Technology, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Xiangxu Wang
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Wenjie Guo
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Xiaoying Ji
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Xiwen Gu
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Department of Stomatology Research Center, Xi'an Jiaotong University College of Stomatology, Xi'an, China
| | - Qichao Huang
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Xu Guo
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Jinliang Xing
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
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22
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Ji NR, Han XY, Yu CC, Wang YJ, He XR, Liu H, Huan F, Lai D, Cao MJ, Liu GM. Analysis of Immunoreactivity of α/α 2-Tropomyosin from Haliotis discus hannai, Based on IgE Epitopes and Structural Characteristics. J Agric Food Chem 2021; 69:15403-15413. [PMID: 34881872 DOI: 10.1021/acs.jafc.1c06401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Tropomyosin (TM) was reported to be a supercoil allergen of shellfish. However, little information is available about its link between structure and allergenicity. In this study, the subunit of TM (α-TM) and supercoil of TM (α2-TM) were identified from Haliotis discus hannai. α2-TM showed higher immunoreactivity than α-TM. Meanwhile, seven linear epitopes in α-TM and α2-TM were verified, and two conformational epitopes in α2-TM were predicted. The physicochemical properties and chemical bond assays confirmed the existence of the disulfide bond in α2-TM. According to spectroscopy and hydrophobicity analysis, α-TM showed higher α-helix features and blueshift of the fluorescence intensity peak compared with those of α2-TM. The structure analysis revealed the possibility of conformational epitopes in α2-TM, which could explain the immunoreactivity differences between α-TM and α2-TM further. These results improved the understanding of Haliotis discus hannai TM, which lay the foundation for the food processing of abalone.
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Affiliation(s)
- Nai-Ru Ji
- College of Marine Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology, Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Xin-Yu Han
- College of Marine Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology, Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Chen-Chen Yu
- College of Marine Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology, Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Yu-Jia Wang
- College of Marine Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology, Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Xin-Rong He
- College of Marine Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology, Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Hong Liu
- College of Marine Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology, Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Fei Huan
- College of Marine Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology, Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Dong Lai
- The Second Affiliated Hospital of Xiamen Medical College, Xiamen, Fujian 361021, China
| | - Min-Jie Cao
- College of Marine Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology, Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Guang-Ming Liu
- College of Marine Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology, Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
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23
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Chen YY, Li MS, Liu M, Yun X, Huan F, Liu QM, Cao MJ, Chen GX, Lai D, Liu GM. Linear Epitopes Play an Important Role in the Immunoglobulin G (IgG)/Immunoglobulin E (IgE)-Binding Capacity of Scy p 4. J Agric Food Chem 2021; 69:12870-12879. [PMID: 34689550 DOI: 10.1021/acs.jafc.1c05464] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Sarcoplasmic calcium-binding protein is a stable allergen in Scylla paramamosain and named Scy p 4. To explore the importance of linear epitopes in the immunoglobulin G (IgG)/immunoglobulin E (IgE)-binding capacity of Scy p 4, chemical denaturants were used to destroy the structure. Scy p 4 was reduced with dithiothreitol and subsequently alkylated with iodoacetamide (IAA). Furthermore, the structural analysis indicated that IAA-Scy p 4 was an unstructured protein. The inhibition enzyme-linked immunosorbent assay showed that IAA-Scy p 4 could inhibit the binding of Scy p 4 to sensitize serum, with inhibition rates reached 55%. Moreover, the linear mimotopes of Scy p 4 were predicted in silico. Three linear epitopes were verified by serological tests and named L-Scy p 4-1 (AA76-91), L-Scy p 4-2 (AA111-125), and L-Scy p 4-3 (AA137-146). Overall, these data provide an understanding of the relationship between the structure and allergenicity about Scy p 4, and the identified linear epitopes can be used for diagnosis and food processing of shellfish allergy.
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Affiliation(s)
- Yi-Yu Chen
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University, Xiamen, Fujian 361021, People's Republic of China
| | - Meng-Si Li
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University, Xiamen, Fujian 361021, People's Republic of China
| | - Meng Liu
- College of Marine Biology, Xiamen Ocean Vocational College, Xiamen, Fujian 361102, People's Republic of China
| | - Xiao Yun
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University, Xiamen, Fujian 361021, People's Republic of China
| | - Fei Huan
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University, Xiamen, Fujian 361021, People's Republic of China
| | - Qing-Mei Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University, Xiamen, Fujian 361021, People's Republic of China
| | - Min-Jie Cao
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University, Xiamen, Fujian 361021, People's Republic of China
| | - Gui-Xia Chen
- Women and Children's Hospital Affiliated to Xiamen University, Xiamen, Fujian 361003, People's Republic of China
| | - Dong Lai
- The Second Affiliated Hospital of Xiamen Medical College, Xiamen, Fujian 361021, People's Republic of China
| | - Guang-Ming Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University, Xiamen, Fujian 361021, People's Republic of China
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24
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Weng L, Chen TH, Huang L, Lai D, Kang N, Fu YS, Weng CF. A nutraceutical combination of cinnamon, purple onion, and tea linked with key enzymes on treatment of type 2 diabetes. J Food Biochem 2021; 45:e13971. [PMID: 34698393 DOI: 10.1111/jfbc.13971] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/30/2021] [Accepted: 10/05/2021] [Indexed: 12/14/2022]
Abstract
Diabetes mellitus (DM) is concomitant with significant morbidity and mortality and its prevalence is accumulative worldwide. The conventional antidiabetic agents are known to mitigate the symptoms of diabetes; however, they may also cause adverse effects. This study was to explore the efficacy of polyherbal dietary supplement cinnamon, purple onion, and tea on the mediation of postprandial hyperglycemia in the search of combinations with a maximal response. A starch solution (3 g/kg Bwt) of oral starch tolerance test (OSTT) and glucose solution (4 g/kg Bwt) of oral glucose tolerance test (OGTT) with and without cinnamon, purple onion, tea extract (15 mg/kg Bwt), and mixture (each 5 mg/kg Bwt, 1:1:1), metformin (14 mg/kg Bwt), or acarbose (50 mg/kg Bwt) was administered to high fat plus high fructose-induced diabetic mice after an overnight fast. Postprandial plasma glucose levels were measured and changed areas under the response curve were calculated to find out the maximal efficacy of optimal polyherbal combinations. Compared with acarbose, the mixture of extracts (purple onion, cinnamon, and tea) indicated the decreasing blood glucose in OSTT. In OGTT, the mixture of extracts showed greater efficacy for hypoglycemia when compared with metformin. The molecular docking of α-amylase, α-glucosidase, and AMPK was further confirmed the putatively acting molecules from the extracts of purple onion, cinnamon, and tea. Overall, this investigation evidenced a beneficial mediation for the progression of lowering blood glucose with a combinatory extract of cinnamon, dietary onion, and tea, implicating their prospective as nutraceuticals that might ameliorate hyperglycemia in diabetes. PRACTICAL APPLICATIONS: Diabetes mellitus (DM), one of metabolic syndrome, attributes to risk factors like obesity, physical inactivity, ageing, life style, and genetic predisposition even with significant morbidity and mortality. DM is increasing and accounts for an estimated annual medical expenditure of US$ 827 billion worldwide. Therefore, maintaining blood glucose levels within the normal range is critical for preventing diabetes and its co-morbidities. The conventional antidiabetic agents are known to mitigate the symptoms of diabetes; nevertheless, they may also cause adverse or side effects. In an effort to design novel and well-tolerated solutions to halt the progression of DM, however evidence-base is extremely limited regarding the efficacy of polyherbal dietary supplement individual herbs for the management of glycemia. In this investigation evidenced a beneficial mediation for the progression of lowering blood glucose with a combinatory extract of cinnamon, dietary onion, and tea, implicating their prospective as nutraceuticals that might ameliorate hyperglycemia in diabetes.
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Affiliation(s)
- Lebin Weng
- Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen, China
| | - Ting-Hsu Chen
- Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen, China
| | - Liyue Huang
- Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen, China
| | - Dong Lai
- Department of Transfusion, The Second Affiliated Hospital of Xiamen Medical College, Fujian, China
| | - Ning Kang
- Department of Otorhinolaryngology, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
| | - Yaw-Syan Fu
- Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen, China.,Institute of Respiratory Disease, Department of Basic Medical Science, Xiamen Medical College, Xiamen, China
| | - Ching-Feng Weng
- Functional Physiology Section, Department of Basic Medical Science, Xiamen Medical College, Xiamen, China.,Institute of Respiratory Disease, Department of Basic Medical Science, Xiamen Medical College, Xiamen, China
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25
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Huan F, Han TJ, Liu M, Li MS, Yang Y, Liu QM, Lai D, Cao MJ, Liu GM. Identification and characterization of Crassostrea angulata arginine kinase, a novel allergen that causes cross-reactivity among shellfish. Food Funct 2021; 12:9866-9879. [PMID: 34664604 DOI: 10.1039/d1fo02042k] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oyster is a common food that causes allergy. However, little information is available about its allergens and cross-reactivity. In this study, arginine kinase (AK) was identified as a novel allergen in Crassostrea angulata. The primary sequence of AK was cloned which encoded 350 amino acids, and recombinant AK (rAK) was obtained. The immunodot results, secondary structure and digestive stability showed that native AK and rAK had similar IgG/IgE-binding activity and physicochemical properties. Serological analysis of 14 oyster-sensitive individuals demonstrated that AK exhibited cross-reactivity among oysters, shrimps, and crabs. Furthermore, nine epitopes in oyster AK were verified using inhibition dot blots and inhibition enzyme linked immunosorbent assay, six of which were similar to the epitopes of shrimp/crab AK. The most conserved epitopes were P5 (121-133) and P6 (133-146), which may be responsible for the cross-reactivity caused by AK. These findings will provide a deeper understanding of oyster allergens and cross-reactivity among shellfish.
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Affiliation(s)
- Fei Huan
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Tian-Jiao Han
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Meng Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Meng-Si Li
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Yang Yang
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Qing-Mei Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Dong Lai
- The Second Affiliated Hospital of Xiamen Medical College, Xiamen, Fujian 361021, China
| | - Min-Jie Cao
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Guang-Ming Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
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26
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Han TJ, Huan F, Liu M, Li MS, Yang Y, Chen GX, Lai D, Cao MJ, Liu GM. IgE epitope analysis of sarcoplasmic-calcium-binding protein, a heat-resistant allergen in Crassostrea angulata. Food Funct 2021; 12:8570-8582. [PMID: 34338271 DOI: 10.1039/d1fo01058a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Sarcoplasmic-calcium-binding protein (SCP) has been investigated as a novel allergen in Crassostrea angulata. Nevertheless, knowledge of its effector-cell-based allergic relevance and epitopes is limited. In this study, the heat-resistant allergen SCP was able to induce significant upregulation of CD63 and CD203c (p < 0.05), which showed obvious allergenicity in a basophil activation test. Furthermore, immunoinformatic tools, a one-bead-one-compound peptide library, and phage display technology were combined to analyze the allergenic epitopes of SCP. Five linear epitopes named L-SCP-1 (AA22-33), L-SCP-2 (AA64-75), L-SCP-3 (AA80-90), L-SCP-4 (AA107-116), and L-SCP-5 (AA144-159) were verified using serological tests. Additionally, two conformational epitopes (C-SCP-1 and C-SCP-2) were determined, and C-SCP-1 was located at one of the calcium-binding sites (AA106-117). Moreover, SCP showed weaker typical α-helical features and higher hydrophobicity after Ca2+ depletion, which reduced its IgE-binding capacity. Overall, these epitope data could enhance our understanding of oyster allergens, which could be used to develop hypoallergenic shellfish products.
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Affiliation(s)
- Tian-Jiao Han
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Fei Huan
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Meng Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Meng-Si Li
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Yang Yang
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Gui-Xia Chen
- Women and Children's Hospital Affiliated to Xiamen University, Xiamen, Fujian 361003, China
| | - Dong Lai
- The Second Affiliated Hospital of Xiamen Medical College, Xiamen, Fujian 361021, China
| | - Min-Jie Cao
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Guang-Ming Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
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Lai D, Tian Y, Zhang J, Weng CF. Hyperendogenous Heparinization Suggests a Guideline for the Management of Massive Wasp Stings in Two Victims. Wilderness Environ Med 2021; 32:344-350. [PMID: 34294538 DOI: 10.1016/j.wem.2021.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 02/18/2021] [Accepted: 02/26/2021] [Indexed: 10/20/2022]
Abstract
Bees and wasps (order Hymenoptera) are commonly encountered worldwide and often deliver defensive stings when in contact with humans. Massive envenomation resulting from >50 stings causes a toxic reaction and life-threatening complications that typically result in rhabdomyolysis and disseminated intravascular coagulation. Two male patients who were stung over 80 times by wasps experienced severe coagulation abnormality. Consecutive examination by thromboelastography (TEG) guided by heparinase treatment during their hospitalization evidenced heparin-like coagulation dysfunction despite no clinical use of heparin-like substances. Numerous tests were also conducted to confirm whether the coagulation abnormalities could be attributed to hyperendogenous heparinization and allergic reaction, rhabdomyolysis, and vascular endothelial cell injury without apparent disseminated intravascular coagulation, which might all be affected by the production of endogenous heparin. The reduced coagulation potential caused by hyperendogenous heparinization was associated with the binding of antithrombin and the activation of fibrinolysis. In addition, TEG-identified coagulopathy was moderated using protamine for heparin neutralization. The massively envenomed patients survived and were discharged after completion of medical care. We also review clinical manifestations from other published case reports, including topical treatment. Our study provides clinical evidence and guidance for diagnosis via TEG and appropriate intervention with protamine for patients with massive wasp envenomation.
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Affiliation(s)
- Dong Lai
- Department of Transfusion, the Second Affiliated Hospital of Xiamen Medical College, Xiamen, China; Intensive Care Unit, the Second Affiliated Hospital of Xiamen Medical College, Xiamen, China; Department of Clinical Medicine, Xiamen Medical College, Xiamen, China
| | - Yan Tian
- Department of Transfusion, the Second Affiliated Hospital of Xiamen Medical College, Xiamen, China; Department of Clinical Medicine, Xiamen Medical College, Xiamen, China
| | - Jie Zhang
- Department of Transfusion, the Second Affiliated Hospital of Xiamen Medical College, Xiamen, China; Intensive Care Unit, the Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
| | - Ching-Feng Weng
- Department of Physiology, School of Basic Medical Science, Xiamen Medical College, Xiamen, China.
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Fu YS, Chen TH, Weng L, Huang L, Lai D, Weng CF. Pharmacological properties and underlying mechanisms of curcumin and prospects in medicinal potential. Biomed Pharmacother 2021; 141:111888. [PMID: 34237598 DOI: 10.1016/j.biopha.2021.111888] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/12/2021] [Accepted: 06/28/2021] [Indexed: 12/11/2022] Open
Abstract
Curcumin, isolated from Curcuma longa L., is a fat-soluble natural compound that can be obtained from ginger plant tuber roots, which accumulative evidences have demonstrated that it can resist viral and microbial infection and has anti-tumor, reduction of blood lipid and blood glucose, antioxidant and removal of free radicals, and is active against numerous disorders various chronic diseases including cardiovascular, pulmonary, neurological and autoimmune diseases. In this article is highlighted the recent evidence of curcuminoids applied in sevral aspects of medical problem particular in COVID-19 pandemics. We have searched several literature databases including MEDLINE (PubMed), EMBASE, the Web of Science, Cochrane Library, Google Scholar, and the ClinicalTrials.gov website via using curcumin and medicinal properties as a keyword. All studies published from the time when the database was established to May 2021 was retrieved. This review article summarizes the growing confirmation for the mechanisms related to curcumin's physiological and pharmacological effects with related target proteins interaction via molecular docking. The purpose is to provide deeper insight and understandings of curcumin's medicinal value in the discovery and development of new drugs. Curcumin could be used in the prevention or therapy of cardiovascular disease, respiratory diseases, cancer, neurodegeneration, infection, and inflammation based on cellular biochemical, physiological regulation, infection suppression and immunomodulation.
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Affiliation(s)
- Yaw-Syan Fu
- Department of Physiology, School of Basic Medicine, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Ting-Hsu Chen
- Department of Physiology, School of Basic Medicine, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Lebin Weng
- Department of Physiology, School of Basic Medicine, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Liyue Huang
- Department of Physiology, School of Basic Medicine, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Dong Lai
- Department of Transfusion, the Second Affiliated Hospital of Xiamen Medical College, Xiamen 361021, Fujian, China.
| | - Ching-Feng Weng
- Department of Physiology, School of Basic Medicine, Xiamen Medical College, Xiamen 361023, Fujian, China.
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Weng L, Chen TH, Zheng Q, Weng WH, Huang L, Lai D, Fu YS, Weng CF. Syringaldehyde promoting intestinal motility with suppressing α-amylase hinders starch digestion in diabetic mice. Biomed Pharmacother 2021; 141:111865. [PMID: 34246193 DOI: 10.1016/j.biopha.2021.111865] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/24/2021] [Accepted: 06/28/2021] [Indexed: 12/14/2022] Open
Abstract
The antihyperglycemic potential of syringaldehyde has been previously investigated; however, the underlying mechanism remains unclear. In this study, we performed a postprandial glucose test (in vivo) including oral glucose tolerance test (OGTT) and oral starch tolerance test (OSTT) in fructose-induced diabetic mice on a high-fat diet for mimicking type 2 diabetes to explore the hypoglycemic efficacy of syringaldehyde and the underlined molecular involvement of syringaldehyde in a glucose-lowering effect. The results revealed that syringaldehyde dose-dependently suppressed blood glucose in both the OSTT and OGTT when referenced to acarbose and metformin, respectively. Surprisingly, syringaldehyde triggered jejunum motility (ex vivo) via activation of the muscarinic-type acetylcholine receptor. By performing virtual screening with molecular docking, the data showed that syringaldehyde nicely interacted with glucagon-like peptide 1 receptor (GLP-1R), peroxisome proliferator-activated receptor (PPAR), dipeptidyl peptidase-IV (DPP-4), acetylcholine M2 receptor, and acetylcholinesterase. These results showed that syringaldehyde can potentiate intestinal contractility to abolish the α-amylase reaction when concurrently reducing retention time and glucose absorption to achieve a glucose-lowering effect in diabetic mice, suggesting its potential therapeutic benefits with improvement for use as a prophylactic and treatment.
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Affiliation(s)
- Lebin Weng
- Department of Physiology, School of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Ting-Hsu Chen
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien 97401, Taiwan.
| | - Qingyan Zheng
- Department of Physiology, School of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Wei-Hao Weng
- Department of Pharmacy, China Medical University, Taichung 40402, Taiwan.
| | - Liyue Huang
- Department of Physiology, School of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Dong Lai
- Medical Research Center, the Second Affiliated Hospital of Xiamen Medical College, Xiamen 361021, Fujian, China.
| | - Yaw-Syan Fu
- Medical Research Center, the Second Affiliated Hospital of Xiamen Medical College, Xiamen 361021, Fujian, China; Department of Anatomy, School of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China.
| | - Ching-Feng Weng
- Department of Physiology, School of Basic Medical Science, Xiamen Medical College, Xiamen 361023, Fujian, China; Medical Research Center, the Second Affiliated Hospital of Xiamen Medical College, Xiamen 361021, Fujian, China.
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Funez-dePagnier G, Lima S, Duenas-Bianchi L, Lai D, Ahmed W, Battat R, Scherl E, Lukin D, Longman R. DOP76 No durable impact of COVID-19 on disease activity and microbiome composition in patients with IBD. J Crohns Colitis 2021; 15. [PMCID: PMC8195113 DOI: 10.1093/ecco-jcc/jjab073.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Background Although patients with inflammatory bowel disease (IBD) reported an increased frequency of gastrointestinal (GI) symptoms following infection, the durable impact of COVID-19 on underlying IBD is not well defined. Methods In 118 IBD patients with COVID-19, clinical and endoscopic IBD activity, laboratory markers (ESR, CRP, hemoglobin (Hb), fecal calprotectin(FCP)), and medication utilization was assessed up to 6 months post-infection and compared to during infection or up to 6 months prior to infection. Active disease was defined by a Harvey Bradshaw Index > 4, Mayo Score ≥2, SES-CD ≥2, Mayo endoscopic score ≥1. 16S rRNA analysis was used to evaluate microbiome composition in a subset of 12 patients before and after COVID-19. Results Although upper respiratory (86.6%) and new GI symptoms (39.1%) were common in patients with IBD, there was no significant change in IBD clinical disease activity (Pre vs. Post-COVID-19 HBI: 4.7 vs. 4.9; partial Mayo: 3.0 vs. 2.1), endoscopic evaluation (Pre vs. Post-COVID-19 SES-CD: 7.2 vs. 8.9, Mayo endoscopic score: 1.5 vs. 1.7), or laboratory markers (Pre vs. Post-COVID-19 CRP: 1.2 vs. 1.3; ESR: 25 vs. 26; Hb 12.8 vs. 13.2; FCP: 388 vs. 250) up to 7 months post-COVID-19 compared to the 6 months prior to infection (Table 1). Overall active disease was present in 60% of the cohort prior to COVID-19 and 55% and 59% during and post-COVID-19, respectively. More subjects (8.5%) reported a delay in medical therapy during COVID-19, but there were no differences in the need for corticosteroids, a change in medical therapy, or IBD-related surgery or hospitalization during or post-COVID-19 compared to the prior 6 months. Microbiome composition stratified by underlying IBD disease activity, but did not show significant change post-COVID-19 (Figure 1). Conclusion COVID-19 showed no durable impact on clinical IBD disease activity or microbiome composition supporting guidelines for continued maintenance care.
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Affiliation(s)
| | - S Lima
- Weill Cornell Medicine, Medicine, New York, United States
| | | | - D Lai
- Weill Cornell Medicine, Medicine, New York, United States
| | - W Ahmed
- Weill Cornell Medicine, Medicine, New York, United States
| | - R Battat
- Weill Cornell Medicine, Medicine, New York, United States
| | - E Scherl
- Weill Cornell Medicine, Medicine, New York, United States
| | - D Lukin
- Weill Cornell Medicine, Medicine, New York, United States
| | - R Longman
- Weill Cornell Medicine, Medicine, New York, United States
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31
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Liu B, Lai D. Hierarchical black hole mergers in multiple systems: constrain the formation of GW190412-, GW190814-, and GW190521-like events. Monthly Notices of the Royal Astronomical Society 2021; 502:2049-2064. [DOI: 10.1093/mnras/stab178] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
ABSTRACT
The merging black hole (BH) binaries GW190412, GW190814, and GW190521 from the third LIGO/VIRGO observing run exhibit some extraordinary properties, including highly asymmetric masses, significant spin, and component mass in the ‘mass gap’. These features can be explained if one or both components of the binary are the remnants of previous mergers. In this paper, we explore hierarchical mergers in multiple stellar systems, taking into account the natal kick and mass-loss due to the supernova explosion (SN) on each component, as well as the merger kick received by the merger remnant. The binaries that have survived the SNe and kicks generally have too wide orbital separations to merge by themselves, but can merge with the aid of an external companion that gives rise to Lidov–Kozai oscillations. The BH binaries that consist of second-generation BHs can also be assembled in dense star clusters through binary interactions. We characterize the parameter space of these BH binaries by merger fractions in an analytical approach. Combining the distributions of the survived binaries, we further constrain the parameters of the external companion, using the analytically formulated tertiary perturbation strength. We find that to produce the three LIGO/VIRGO O3 events, the external companions must be at least a few hundreds M⊙, and fall in the intermediate-mass BH and supermassive BH range. We suggest that GW190412, GW190814, and GW190521 could all be produced via hierarchical mergers in multiples, likely in a nuclear star cluster, with the final merger induced by a massive BH.
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Affiliation(s)
- Bin Liu
- Cornell Center for Astrophysics and Planetary Science, Department of Astronomy, Cornell University, Ithaca, NY 14853, USA
| | - Dong Lai
- Cornell Center for Astrophysics and Planetary Science, Department of Astronomy, Cornell University, Ithaca, NY 14853, USA
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai 200240, China
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Chen YY, Li MS, Yun X, Xia F, Hu MJ, Jin T, Cao MJ, Lai D, Chen G, Liu GM. Site-Directed Mutations of Calcium-Binding Sites Contribute to Reducing the Immunoreactivity of the EF-Hand Sarcoplasmic Calcium-Binding Protein in Scylla paramamosain. J Agric Food Chem 2021; 69:428-436. [PMID: 33377774 DOI: 10.1021/acs.jafc.0c05733] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In order to reduce the immunoreactivity of sarcoplasmic calcium-binding protein (SCP), site-directed mutations were used to replace key amino acids in the conformational epitopes and calcium-binding sites. The mutant SCPs (mSCPs) were expressed in Escherichia coli, and their immunoreactivities were analyzed using iELISA and basophil activation assays. Furthermore, the structural changes of mSCPs were determined from the circular dichroism spectra. The iELISA results showed that mSCPs could effectively inhibit the binding of wild-type SCP (wtSCP) to sensitive serum, with inhibition rates that reached 90%. Moreover, mSCPs could downregulate the expression levels of CD63 and CD203c on the basophil surface. Compared with wtSCP, the peak values were significantly changed, and the calcium binding ability was impaired, which explained the decline in immunoreactivities of the mSCPs. All of the data confirmed that this approach was effective in reducing the immunoreactivity of SCP and could be applied to other shellfish allergens.
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Affiliation(s)
- Yi-Yu Chen
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Meng-Si Li
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Xiao Yun
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Fei Xia
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Meng-Jun Hu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Tengchuan Jin
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science & Technology of China, Hefei, Anhui 230026, China
| | - Min-Jie Cao
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
| | - Dong Lai
- The Second Affiliated Hospital of Xiamen Medical College, Xiamen, Fujian 361021, China
| | - Guixia Chen
- Women and Children's Hospital Affiliated to Xiamen University, Xiamen, Fujian 361003, China
| | - Guang-Ming Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China
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Bai TL, Han XY, Li MS, Yang Y, Liu M, Ji NR, Yu CC, Lai D, Cao MJ, Liu GM. Effects of the Maillard reaction on the epitopes and immunoreactivity of tropomyosin, a major allergen in Chlamys nobilis. Food Funct 2021; 12:5096-5108. [PMID: 33960998 DOI: 10.1039/d1fo00270h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Scallop (Chlamys nobilis) causes an IgE-mediated food allergy; however, studies of the allergens in its musculus are not sufficiently comprehensive. In this context, the target protein was purified from scallops and confirmed to be the major allergen tropomyosin (TM) using proteomic technology and serological testing. Subsequently, seven potential IgE epitopes of TM were obtained using phage display technology with IgE enrichment from the serum of scallop-sensitized patients and identified via inhibition enzyme-linked immunosorbent assays. A method for the Maillard reaction of TM and xylose was established, and Maillard-reacted TM (MR-TM) showed significantly decreased immunobinding activity and CD63 and CD203c expression in basophils compared with TM. Furthermore, shotgun proteomics analysis showed that eleven specific amino acids (K12, R15, K28, K76, R125, R127, K128, R133, R140, K146, and K189) of the six IgE epitopes of TM were modified after the Maillard reaction. Overall, the immunoactivity of MR-TM was reduced, which provides a theoretical reference for the development of hypoallergenic foods.
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Affiliation(s)
- Tian-Liang Bai
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Xin-Yu Han
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Meng-Si Li
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Yang Yang
- College of Environment and Public Health, Xiamen Huaxia University, 288 Tianma Road, Xiamen, Fujian 361024, China
| | - Meng Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Nai-Ru Ji
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Chen-Chen Yu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Dong Lai
- The Second Affiliated Hospital of Xiamen Medical College, Xiamen, Fujian 361021, China
| | - Min-Jie Cao
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
| | - Guang-Ming Liu
- College of Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen, Fujian 361021, China.
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Liu B, Lai D. Merging compact binaries near a rotating supermassive black hole: Eccentricity excitation due to apsidal precession resonance. Int J Clin Exp Med 2020. [DOI: 10.1103/physrevd.102.023020] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Garg N, Tona R, Martin P, Martin-Soladana PM, Ward G, Douillet N, Lai D. Seeded droplet microfluidic system for small molecule crystallization. Lab Chip 2020; 20:1815-1826. [PMID: 32322845 DOI: 10.1039/d0lc00122h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A microfluidic approach to seeded crystallization has been demonstrated using abacavir hemisulfate, a nucleoside analog reverse transcriptase inhibitor, in droplet reactors to control polymorphism and produce particles with a low particle size distribution. Two techniques are introduced: (1) the first technique involves an emulsion system consisting of a dispersed phase solvent and a continuous phase, which holds slight solubility of the dispersed phase solvent. The dispersed phase contains both a dissolved active pharmaceutical ingredient (API) and seeds of the desired polymorph. While the continuous phase enables solvent extraction, the negligible solubility of the API allows for growth of seeds inside droplets via extraction and subsequent API saturation. This technique demonstrates the ability to crystallize the API in spherical agglomerates via slow extraction of droplets. (2) The second technique utilizes a combined dispersed phase by joining in-flow a seed suspension stream with a supersaturated active pharmaceutical ingredient (API) stream. The combined dispersed phase is emulsified in a continuous phase for which the dispersed phase solvent and the API are both insoluble - droplets are incubated at temperatures below their saturation limit to induce crystal growth. Decreasing the concentration of seeds in its input stream resulted in a decreased number of crystals per droplet, increase in crystal size, and decrease in PSD. Temperature cycling was utilized as a proof of concept to demonstrate the ability to reduce the number of seeds per droplet where the optimal goal is to obtain a single seed per droplet for all droplets. Utilizing this approach in conjunction with the ability to produce monodispersed droplet reactors allows for enhanced control of particle size distribution (PSD) by precisely controlling the available mass for each individual seed crystal. The development of this technique as a proof-of-concept for crystallization can be expanded to manufacturing scales in a continuous manner using parallelized droplet generators and flow reactors to precisely control the temperature and crystal growth kinetics of individual droplets.
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Affiliation(s)
- N Garg
- Advanced Manufacturing Technologies, GlaxoSmithKline, 709 Swedeland Road, King of Prussia, PA, USA.
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Malecki C, Robertson E, Xia Q, Liddy K, Sahagian A, Lu Y, Kekic M, Lai D, Hambly B, Jeremy R. 583 DNA Methylation in Marfan Syndrome and the Role of Inflammation and Oxidative Stress in the Pathogenesis of Disease. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.590] [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: 10/23/2022]
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Lin S, Hao G, Lai D, Tian Y, Long M, Lai F, Xiong Y, Ji C, Zang Y. Effect of Oyster Meat Preload on Postmeal Glycemic Control in Healthy Young Adults. J Am Coll Nutr 2019; 39:511-517. [PMID: 31880993 DOI: 10.1080/07315724.2019.1699475] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Objective: Evidence suggests that food preload improves postmeal glycemic profiles, but the effects of marine food are poorly understood. Our study aims to verify the regulating effects of premeal oyster meat (OM) on postprandial blood glucose.Method: Edible parts of the flesh of oyster were prepared for a randomized crossover experiment. After overnight fasting, 20 healthy young men consumed 300 mL of preload drinks with 0 g/kg body weight (BW) (control), 0.1 g/kg BW, and 0.2 g/kg BW. Peripheral blood concentrations of glucose and gastrointestinal hormones were measured before preloading at baseline (0 minutes) and at intervals after the preload and after a preset rice meal. The nutrient composition of OM was analyzed.Results: Compared with other doses, 0.2 g/kg BW OM preload induced higher plasma premeal insulin (p < 0.05), C-peptide (p < 0.05), and glucagon-like peptide-1 (GLP-1; p < 0.05) without altering the glucose concentrations during premeal times. By contrast, 0.2 g/kg BW OM induced less secretion of glucose (p < 0.05) and gastric inhibitory peptide (GIP; p < 0.05), but higher secretion of GLP-1 (p < 0.05) than 0.1 g/kg BW of OM after a meal. During the entire experiment (0-170 minutes), OM reduced the blood glucose (p < 0.05) and GIP (p < 0.05), but increased GLP-1 (p < 0.05). OM was rich in protein (78.4%) and low in fat (6%). Glutamic acid, aspartic acids, glycine, and taurine are the amino acids with high content found in OM.Conclusions: OM preload reduces postmeal glycemia in healthy young people with associated changes in gastrointestinal hormone responses. This effect may be attributed to the rich contents of protein and amino acids of OM.
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Affiliation(s)
- Shuting Lin
- Central Laboratory, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
| | - Gengxin Hao
- College of Food and Biological Engineering, Jimei University, Xiamen, China
| | - Dong Lai
- Central Laboratory, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
| | - Yan Tian
- Central Laboratory, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
| | - Min Long
- Central Laboratory, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
| | - Fei Lai
- Central Laboratory, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
| | - Yongmei Xiong
- Central Laboratory, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
| | - Changfu Ji
- Central Laboratory, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
| | - Yuan Zang
- Central Laboratory, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
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Meyers JL, Zhang J, Wang JC, Su J, Kuo SI, Kapoor M, Wetherill L, Bertelsen S, Lai D, Salvatore JE, Kamarajan C, Chorlian D, Agrawal A, Almasy L, Bauer L, Bucholz KK, Chan G, Hesselbrock V, Koganti L, Kramer J, Kuperman S, Manz N, Pandey A, Seay M, Scott D, Taylor RE, Dick DM, Edenberg HJ, Goate A, Foroud T, Porjesz B. An endophenotype approach to the genetics of alcohol dependence: a genome wide association study of fast beta EEG in families of African ancestry. Mol Psychiatry 2017; 22:1767-1775. [PMID: 28070124 PMCID: PMC5503794 DOI: 10.1038/mp.2016.239] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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: 06/17/2016] [Revised: 09/24/2016] [Accepted: 10/27/2016] [Indexed: 01/16/2023]
Abstract
Fast beta (20-28 Hz) electroencephalogram (EEG) oscillatory activity may be a useful endophenotype for studying the genetics of disorders characterized by neural hyperexcitability, including substance use disorders (SUDs). However, the genetic underpinnings of fast beta EEG have not previously been studied in a population of African-American ancestry (AA). In a sample of 2382 AA individuals from 482 families drawn from the Collaborative Study on the Genetics of Alcoholism (COGA), we performed a genome-wide association study (GWAS) on resting-state fast beta EEG power. To further characterize our genetic findings, we examined the functional and clinical/behavioral significance of GWAS variants. Ten correlated single-nucleotide polymorphisms (SNPs) (r2>0.9) located in an intergenic region on chromosome 3q26 were associated with fast beta EEG power at P<5 × 10-8. The most significantly associated SNP, rs11720469 (β: -0.124; P<4.5 × 10-9), is also an expression quantitative trait locus for BCHE (butyrylcholinesterase), expressed in thalamus tissue. Four of the genome-wide SNPs were also associated with Diagnostic and Statistical Manual of Mental Disorders Alcohol Dependence in COGA AA families, and two (rs13093097, rs7428372) were replicated in an independent AA sample (Gelernter et al.). Analyses in the AA adolescent/young adult (offspring from COGA families) subsample indicated association of rs11720469 with heavy episodic drinking (frequency of consuming 5+ drinks within 24 h). Converging findings presented in this study provide support for the role of genetic variants within 3q26 in neural and behavioral disinhibition. These novel genetic findings highlight the importance of including AA populations in genetics research on SUDs and the utility of the endophenotype approach in enhancing our understanding of mechanisms underlying addiction susceptibility.
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Affiliation(s)
- JL Meyers
- Department of Psychiatry, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - J Zhang
- Department of Psychiatry, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - JC Wang
- Department of Neuroscience, Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - J Su
- Department of Psychology, Virginia Commonwealth University, Richmond, VA, USA
| | - SI Kuo
- Department of Psychology, Virginia Commonwealth University, Richmond, VA, USA
| | - M Kapoor
- Department of Neuroscience, Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - L Wetherill
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - S Bertelsen
- Department of Neuroscience, Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - D Lai
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - JE Salvatore
- Department of Psychology, Virginia Commonwealth University, Richmond, VA, USA,Virginia Institute of Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA, USA
| | - C Kamarajan
- Department of Psychiatry, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - D Chorlian
- Department of Psychiatry, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - A Agrawal
- Department of Psychiatry, Washington University School of Medicine in St Louis, St Louis, MO, USA
| | - L Almasy
- Department of Biomedical and Health Informatics, The Children’s Hospital of Philadelphia, Philadelphia, PA, USA,Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - L Bauer
- Department of Psychiatry, University of Connecticut School of Medicine, Farmington, CT, USA
| | - KK Bucholz
- Department of Psychiatry, Washington University School of Medicine in St Louis, St Louis, MO, USA
| | - G Chan
- Department of Psychiatry, University of Connecticut School of Medicine, Farmington, CT, USA
| | - V Hesselbrock
- Department of Psychiatry, University of Connecticut School of Medicine, Farmington, CT, USA
| | - L Koganti
- Department of Neuroscience, Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - J Kramer
- Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - S Kuperman
- Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - N Manz
- Department of Physics, The College of Wooster, Wooster, OH, USA
| | - A Pandey
- Department of Psychiatry, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - M Seay
- Department of Psychiatry, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - D Scott
- Collaborative Alcohol Research Center, Howard University College of Medicine, Washington, DC, USA
| | - RE Taylor
- Collaborative Alcohol Research Center, Howard University College of Medicine, Washington, DC, USA
| | - DM Dick
- Department of Psychology, Virginia Commonwealth University, Richmond, VA, USA,Virginia Institute of Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA, USA
| | - HJ Edenberg
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA,Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - A Goate
- Department of Neuroscience, Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA,Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - T Foroud
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - B Porjesz
- Department of Psychiatry, State University of New York Downstate Medical Center, Brooklyn, NY, USA
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Lin S, Hao G, Long M, Lai F, Li Q, Xiong Y, Tian Y, Lai D. Oyster (Ostrea plicatula Gmelin) polysaccharides intervention ameliorates cyclophosphamide—Induced genotoxicity and hepatotoxicity in mice via the Nrf2—ARE pathway. Biomed Pharmacother 2017; 95:1067-1071. [DOI: 10.1016/j.biopha.2017.08.058] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 08/10/2017] [Accepted: 08/10/2017] [Indexed: 12/14/2022] Open
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Zhang JY, Kong LH, Lai D, Jin ZX, Gu XM, Zhou JJ. Glutamate protects against Ca(2+) paradox-induced injury and inhibits calpain activity in isolated rat hearts. Clin Exp Pharmacol Physiol 2017; 43:951-9. [PMID: 27279457 DOI: 10.1111/1440-1681.12605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 04/25/2016] [Accepted: 06/02/2016] [Indexed: 01/13/2023]
Abstract
This study determined the effects of glutamate on the Ca(2+) paradoxical heart, which is a model for Ca(2+) overload-induced injury during myocardial ischaemia and reperfusion, and evaluated its effect on a known mediator of injury, calpain. An isolated rat heart was retrogradely perfused in a Langendorff apparatus. Ca(2+) paradox was elicited via perfusion with a Ca(2+) -free Krebs-Henseleit (KH) solution for 3 minutes followed by Ca(2+) -containing normal KH solution for 30 minutes. The Ca(2+) paradoxical heart exhibited almost no viable tissue on triphenyltetrazolium chloride staining and markedly increased LDH release, caspase-3 activity, cytosolic cytochrome c content, and apoptotic index. These hearts also displayed significantly increased LVEDP and a disappearance of LVDP. Glutamate (5 and 20 mmol/L) significantly alleviated Ca(2+) paradox-induced injury. In contrast, 20 mmol/L mannitol had no effect on Ca(2+) paradox. Ca(2+) paradox significantly increased the extent of the translocation of μ-calpain to the sarcolemmal membrane and the proteolysis of α-fodrin, which suggests calpain activation. Glutamate also blocked these effects. A non-selective inhibitor of glutamate transporters, dl-TBOA (10 μmol/L), had no effect on control hearts, but it reversed glutamate-induced cardioprotection and reduction in calpain activity. Glutamate treatment significantly increased intracellular glutamate content in the Ca(2+) paradoxical heart, which was also blocked by dl-TBOA. We conclude that glutamate protects the heart against Ca(2+) overload-induced injury via glutamate transporters, and the inhibition of calpain activity is involved in this process.
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Affiliation(s)
- Jian-Ying Zhang
- Department of Physiology, The Fourth Military Medical University, Xi'an, China
| | - Ling-Heng Kong
- Department of Physiology, The Fourth Military Medical University, Xi'an, China.,Institute of Basic Medical Science, Xi'an Medical College, Xi'an, China
| | - Dong Lai
- Department of Physiology, The Fourth Military Medical University, Xi'an, China
| | - Zhen-Xiao Jin
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Xiao-Ming Gu
- Department of Physiology, The Fourth Military Medical University, Xi'an, China
| | - Jing-Jun Zhou
- Department of Physiology, The Fourth Military Medical University, Xi'an, China
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Lai D, Huang YL, Pu JM, Liu L. [Intratympanic steroid intervention as initial therapy for sudden sensorineural hearing loss: a systematic review of reviews]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:1258-1264. [PMID: 29798374 DOI: 10.13201/j.issn.1001-1781.2017.16.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Indexed: 11/12/2022]
Abstract
Objective:The aim of this overview is to evaluate the relevant systematic reviews and Meta-analysis that focus on intratympanic steroid intervention as initial therapy for sudden sensorineural hearing loss.Method:The literature search was based on the published systematic reviews and Meta analysis. According to the include and exclude critera, the important data was extracted. Quality assessment was rigorously performed using the 11-item Assessment of Multiple Systematic Reviews (AMSTAR) and main outcome indicators of literature evidence quality were evaluated by Grading of Recommendations, Assessment, Development and Evaluation (GRADE).Result:Sixteen related systemic reviews and Meta-analysis (6 Chinese literatures and 10 English literatures) published during 2009-2016 were included; AMSTAR score was 4 to 9 points,14 studies was medium quality and 2 was high quality. However, the clinical evidence was controversial and there is no consensus regarding the efficacy of intratympanic steroid therapy for sudden sensorineural hearing loss.Conclusion:As an initial treatment, there is no sufficient high quality evidence to recommend the ITS therapy. There is a need for further systematic reviews that adhere to strict scientific methods.
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Affiliation(s)
- D Lai
- Department of Otolaryngology Head and Neck Surgery, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Y L Huang
- Department of Pharmacy, the Affiliated Hospital of Southwest Medical University
| | - J M Pu
- Department of Otolaryngology Head and Neck Surgery, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - L Liu
- Department of Otolaryngology Head and Neck Surgery, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
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Zhou Y, Simmons D, Lai D, Hambly BD, McLachlan CS. rs9939609 FTO genotype associations with FTO methylation level influences body mass and telomere length in an Australian rural population. Int J Obes (Lond) 2017; 41:1427-1433. [PMID: 28559540 DOI: 10.1038/ijo.2017.127] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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: 11/14/2016] [Revised: 03/26/2017] [Accepted: 05/07/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND The fat mass- and obesity-associated (FTO) gene influences energy homeostasis in humans. Although the obesity-related variant, rs9939609 has been replicated across a number of cohort studies, there remains significant variance and a low to modest association. Telomere length is another commonly reported obesity risk factor. We hypothesize understanding the associations between FTO rs9939609 with FTO methylation and telomere length will provide a more accurate assessment of obesity risk. METHODS Overall, 942 participants free of diabetes or pre-diabetes were included in the retrospective study. Leukocyte genomic DNA was analyzed for rs9939609 genotyping, FTO gene methylation and leukocyte telomere length (LTL) measurement. RESULTS In general linear models, rs9939609 AA genotypes were associated with increased fat percentage (3.15%, P=0.001), fat mass (4.16 kg, P=0.001), body mass index (BMI) (1.38, P=0.006) and waist circumference (3.35 cm, P=0.006), but not with FTO methylation or LTL in this overall population. However, when participants were stratified into higher and lower FTO methylation groups, the AA genotype possesses a 2.04-fold increased obesity risk in comparison to TT genotype (95%CI, 1.07-3.89, P=0.031) in participants with a higher FTO methylation level, but this association was absent in the lower FTO methylation sub-group. Moreover, AT and AA genotype carriers were associated with shorter LTL compared to TT carriers (P=0.020 and P=0.111, respectively) in the higher FTO methylation level group. However, this association was absent in the lower methylation group. Furthermore, FTO gene methylation level was significantly associated with LTL in the 942 samples (P=0.017). CONCLUSIONS FTO rs9939609 is associated with obesity risk and LTL in this study, where this association is only observed at higher, but not lower, FTO methylation levels of participants. Our data suggest association of multiple factors, including FTO methylation level, may be involved in one of several mechanisms underlying the commonly reported obesity risk of this FTO polymorphism.
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Affiliation(s)
- Y Zhou
- Rural Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - D Simmons
- Rural Clinical School, University of MelbourneI, Shepparton, Victoria, Australia.,School of Medicine, Western Sydney University, Sydney, New South Wales, Australia
| | - D Lai
- School of Medical Sciences and Bosch Institute, University of Sydney, Sydney, New South Wales, Australia
| | - B D Hambly
- Discipline of Pathology and Bosch Institute, University of Sydney, Sydney, New South Wales, Australia
| | - C S McLachlan
- Rural Clinical School, University of New South Wales, Sydney, New South Wales, Australia
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Purcell J, Hickson J, Tanlimco S, Fox M, Chao D, Hsi E, Sho M, Powers R, Foster-Duke K, McGonigal T, Uziel T, Kumar S, Samayoa J, Longenecker K, Lai D, Hollenbaugh D, Afar D, Iyer S, Morgan-Lappe S, Gish K. ABBV-085 is a novel antibody–drug conjugate (ADC) that targets LRRC15 in the tumor microenvironment. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)32622-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
The infection of hepatitis A virus is an important public health problem in China. In 1990, a survey on seroprevalence of anti-hepatitis A was conducted in eight large cities of population size between one to four million. The results were used to analyze the impact of hepatitis A. In our study, we used life table techniques to determine the impact that the hepatitis A virus (HAV) has on these eight cities by computing the expected years of life with anti-hepatitis A virus. We compared the results from our approach with those from a previous method. The expected years of life with anti-hepatitis A virus were 53.82, 54.65, 44.26, 53.89, 46.18, 55.77, 55.31 and 49.89 for the eight cities (Xi'an, Huhehaote, Chongqing, Nanjing, Jinan, Ha'erbin, Fuzhou and Nanchang), respectively. The hepatitis A virus had the greatest impact in Ha'erbin in northeastern China; whereas, the impact was lowest in Chongqing in southwestern China. However, based on the previous indicator, Chongqing was ranked the highest among these cities. Through our comparative study of the methods, our approach provides a better measure on the burden of the disease than the previous method. It also identifies subgroups of the population where the disease has its greatest impact on the population. Asia Pac J Public Health 2003; 15(2): 94-98.
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Affiliation(s)
- D Lai
- School of Public Health, The University of Texas Health Science Centre, Houston 77030, USA.
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Zhang JY, Cheng K, Lai D, Kong LH, Shen M, Yi F, Liu B, Wu F, Zhou JJ. Cardiac sodium/calcium exchanger preconditioning promotes anti-arrhythmic and cardioprotective effects through mitochondrial calcium-activated potassium channel. Int J Clin Exp Pathol 2015; 8:10239-10249. [PMID: 26617732 PMCID: PMC4637547] [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] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 08/28/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Reverse-mode of the Na(+)/Ca(2+) exchanger (NCX) stimulation provides cardioprotective effects for the ischemic/reperfused heart during ischemic preconditioning (IP). This study was designed to test the hypothesis that pretreatment with an inhibitor of cardiac delayed-rectifying K(+) channel (IKr), E4031, increases reverse-mode of NCX activity, and triggers preconditioning against infarct size (IS) and arrhythmias caused by ischemia/reperfusion injury through mitoKCa channels. MATERIALS AND METHODS In the isolated perfused rat heart, myocardial ischemia/reperfusion injury was created by occlusion of the left anterior descending coronary artery for 30 min followed by 120 min reperfusion. Two cycles of coronary occlusion for 5 min and reperfusion were performed, or pretreatment with E4031 or sevoflurane (Sevo) before the 30 min occlusion with the reversed-mode of NCX inhibitor (KB-R7943) or not. RESULTS E4031 or Sevo preconditioning not only markedly decreased IS but also reduced arrhythmias, which was significantly blunted by KB-R7943. Furthermore, these effects of E4031 preconditioning on IS and arrhythmias were abolished by inhibition of the mitoKCa channels. Similarly, pretreatment with NS1619, an opener of the mitoKCa channels, for 10 min before occlusion reduced both the infarct size and arrhythmias caused by ischemia/reperfusion. However, these effects weren't affected by blockade of the NCX with KB-R7943. CONCLUSION Taken together, these preliminary results conclude that pretreatment with E4031 reduces infarct size and produces anti-arrhythmic effect via stimulating the reverse-mode NCX, and that the mitoKCa channels mediate the protective effects.
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Affiliation(s)
- Jian-Ying Zhang
- Department of Physiology, The Fourth Military Medical University Xi'an 710032, China
| | - Kang Cheng
- Department of Cardiology, Xijing Hospital, The Fourth Military Medical University Xi'an 710032, China
| | - Dong Lai
- Five-Year Medical Student of Grade 2012 in The Fourth Military Medical University Xi'an 710032, China
| | - Ling-Heng Kong
- Institute of Basic Medical Science, Xi'an Medical College Xi'an 710021, China
| | - Min Shen
- Department of Cardiology, Xijing Hospital, The Fourth Military Medical University Xi'an 710032, China
| | - Fu Yi
- Department of Cardiology, Xijing Hospital, The Fourth Military Medical University Xi'an 710032, China
| | - Bing Liu
- Department of Cardiology, Xijing Hospital, The Fourth Military Medical University Xi'an 710032, China
| | - Feng Wu
- Department of Cardiology, Xijing Hospital, The Fourth Military Medical University Xi'an 710032, China
| | - Jing-Jun Zhou
- Department of Physiology, The Fourth Military Medical University Xi'an 710032, China
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Mou Y, Li J, Zhou K, Yu R, Xu D, Luo H, Lai D, Zhou L. Enhanced Production of Palmarumycins C12 and C13 in Mycelial Liquid Culture of the Endophytic Fungus <i>Berkleasmium<?i> sp. Dzf12 with <i>In situ</i> Macroporous Resin Adsorption. TROP J PHARM RES 2015. [DOI: 10.4314/tjpr.v14i3.8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Robertson E, Lu Y, Lai D, Kekic M, Hambly B, Jeremy R. Evidence for altered post-transcriptional regulation of TGF-β signaling in Marfan syndrome. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.06.672] [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: 10/23/2022]
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Anderson KR, Storch NI, Lai D. Chaotic Dynamics of Stellar Spin in Binaries and the Production of Misaligned Hot Jupiters. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/201510104006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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