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He J, Ji Z, Sang J, Quan H, Zhang H, Lu H, Zheng J, Wang S, Ge RS, Li X. Potent inhibition of human and rat 17β-hydroxysteroid dehydrogenase 1 by curcuminoids and the metabolites: 3D QSAR and in silico docking analysis. SAR QSAR Environ Res 2024:1-24. [PMID: 38785078 DOI: 10.1080/1062936x.2024.2355529] [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] [Received: 03/19/2024] [Accepted: 05/11/2024] [Indexed: 05/25/2024]
Abstract
Curcumin, an extensively utilized natural pigment in the food industry, has attracted considerable attention due to its potential therapeutic effects, such as anti-tumorigenic and anti-inflammatory activities. The enzyme 17β-Hydroxysteroid dehydrogenase 1 (17β-HSD1) holds a crucial position in oestradiol production and exhibits significant involvement in oestrogen-responsive breast cancers and endometriosis. This study investigated the inhibitory effects of curcuminoids, metabolites, and analogues on 17β-HSD1, a key enzyme in oestradiol synthesis. Screening 10 compounds, including demethoxycurcumin (IC50, 3.97 μM) and dihydrocurcumin (IC50, 5.84 μM), against human and rat 17β-HSD1 revealed varying inhibitory potencies. These compounds suppressed oestradiol secretion in human BeWo cells at ≥ 5-10 μM. 3D-Quantitative structure-activity relationship (3D-QSAR) and molecular docking analyses elucidated the interaction mechanisms. Docking studies and Gromacs simulations suggested competitive or mixed binding to the steroid or NADPH/steroid binding sites of 17β-HSD1. Predictive 3D-QSAR models highlighted the importance of hydrophobic regions and hydrogen bonding in inhibiting 17β-HSD1 activity. In conclusion, this study provides valuable insights into the inhibitory effects and mode of action of curcuminoids, metabolites, and analogues on 17β-HSD1, which may have implications in the field of hormone-related disorders.
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Affiliation(s)
- J He
- Department of Anesthesiology, Yuying Children's Hospital, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou, China
- Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou, China
- Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, China
| | - Z Ji
- Department of Anesthesiology, Yuying Children's Hospital, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou, China
- Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou, China
- Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, China
| | - J Sang
- Department of Anesthesiology, Yuying Children's Hospital, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou, China
- Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou, China
- Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, China
| | - H Quan
- Department of Anesthesiology, Yuying Children's Hospital, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou, China
- Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou, China
- Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, China
| | - H Zhang
- Department of Anesthesiology, Yuying Children's Hospital, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou, China
- Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou, China
- Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, China
| | - H Lu
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - J Zheng
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - S Wang
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - R S Ge
- Department of Anesthesiology, Yuying Children's Hospital, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou, China
- Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou, China
- Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, China
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Environment and Male Reproductive Medicine of Wenzhou, Wenzhou, Zhejiang Province, China
| | - X Li
- Department of Anesthesiology, Yuying Children's Hospital, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou, China
- Key Laboratory of Pediatric Anesthesiology, Ministry of Education, Wenzhou, China
- Key Laboratory of Anesthesiology of Zhejiang Province, Wenzhou Medical University, Wenzhou, China
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Environment and Male Reproductive Medicine of Wenzhou, Wenzhou, Zhejiang Province, China
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Faksova K, Walsh D, Jiang Y, Griffin J, Phillips A, Gentile A, Kwong JC, Macartney K, Naus M, Grange Z, Escolano S, Sepulveda G, Shetty A, Pillsbury A, Sullivan C, Naveed Z, Janjua NZ, Giglio N, Perälä J, Nasreen S, Gidding H, Hovi P, Vo T, Cui F, Deng L, Cullen L, Artama M, Lu H, Clothier HJ, Batty K, Paynter J, Petousis-Harris H, Buttery J, Black S, Hviid A. COVID-19 vaccines and adverse events of special interest: A multinational Global Vaccine Data Network (GVDN) cohort study of 99 million vaccinated individuals. Vaccine 2024; 42:2200-2211. [PMID: 38350768 DOI: 10.1016/j.vaccine.2024.01.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/15/2024]
Abstract
BACKGROUND The Global COVID Vaccine Safety (GCoVS) Project, established in 2021 under the multinational Global Vaccine Data Network™ (GVDN®), facilitates comprehensive assessment of vaccine safety. This study aimed to evaluate the risk of adverse events of special interest (AESI) following COVID-19 vaccination from 10 sites across eight countries. METHODS Using a common protocol, this observational cohort study compared observed with expected rates of 13 selected AESI across neurological, haematological, and cardiac outcomes. Expected rates were obtained by participating sites using pre-COVID-19 vaccination healthcare data stratified by age and sex. Observed rates were reported from the same healthcare datasets since COVID-19 vaccination program rollout. AESI occurring up to 42 days following vaccination with mRNA (BNT162b2 and mRNA-1273) and adenovirus-vector (ChAdOx1) vaccines were included in the primary analysis. Risks were assessed using observed versus expected (OE) ratios with 95 % confidence intervals. Prioritised potential safety signals were those with lower bound of the 95 % confidence interval (LBCI) greater than 1.5. RESULTS Participants included 99,068,901 vaccinated individuals. In total, 183,559,462 doses of BNT162b2, 36,178,442 doses of mRNA-1273, and 23,093,399 doses of ChAdOx1 were administered across participating sites in the study period. Risk periods following homologous vaccination schedules contributed 23,168,335 person-years of follow-up. OE ratios with LBCI > 1.5 were observed for Guillain-Barré syndrome (2.49, 95 % CI: 2.15, 2.87) and cerebral venous sinus thrombosis (3.23, 95 % CI: 2.51, 4.09) following the first dose of ChAdOx1 vaccine. Acute disseminated encephalomyelitis showed an OE ratio of 3.78 (95 % CI: 1.52, 7.78) following the first dose of mRNA-1273 vaccine. The OE ratios for myocarditis and pericarditis following BNT162b2, mRNA-1273, and ChAdOx1 were significantly increased with LBCIs > 1.5. CONCLUSION This multi-country analysis confirmed pre-established safety signals for myocarditis, pericarditis, Guillain-Barré syndrome, and cerebral venous sinus thrombosis. Other potential safety signals that require further investigation were identified.
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Affiliation(s)
- K Faksova
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark.
| | - D Walsh
- Department of Statistics, University of Auckland, New Zealand; Global Vaccine Data Network, Global Coordinating Centre, Auckland, New Zealand
| | - Y Jiang
- Department of Statistics, University of Auckland, New Zealand; Global Vaccine Data Network, Global Coordinating Centre, Auckland, New Zealand
| | - J Griffin
- Global Vaccine Data Network, Global Coordinating Centre, Auckland, New Zealand
| | - A Phillips
- National Centre for Immunisation Research and Surveillance, Westmead, New South Wales, Australia
| | - A Gentile
- Department of Epidemiology, Ricardo Gutierrez Children Hospital, Buenos Aires University, Argentina
| | - J C Kwong
- ICES, Toronto, Ontario, Canada; Public Health Ontario, Toronto, Ontario, Canada; Department of Family and Community Medicine, Temerty Faculty of Medicine and the Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - K Macartney
- National Centre for Immunisation Research and Surveillance, Westmead, New South Wales, Australia; The University of Sydney, Australia
| | - M Naus
- British Columbia Centre for Disease Control, Vancouver, British Columbia, Canada; School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Z Grange
- Public Health Scotland, Glasgow, Scotland, United Kingdom
| | - S Escolano
- Université Paris-Saclay, UVSQ, Inserm, CESP, High Dimensional Biostatistics for Drug Safety and Genomics, Villejuif, France
| | - G Sepulveda
- Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - A Shetty
- Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - A Pillsbury
- National Centre for Immunisation Research and Surveillance, Westmead, New South Wales, Australia
| | - C Sullivan
- Public Health Scotland, Glasgow, Scotland, United Kingdom
| | - Z Naveed
- British Columbia Centre for Disease Control, Vancouver, British Columbia, Canada; School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - N Z Janjua
- British Columbia Centre for Disease Control, Vancouver, British Columbia, Canada; School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - N Giglio
- Department of Epidemiology, Ricardo Gutierrez Children Hospital, Buenos Aires University, Argentina
| | - J Perälä
- Department of Health Security, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - S Nasreen
- ICES, Toronto, Ontario, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada; School of Public Health, SUNY Downstate Health Sciences University, Brooklyn, NY, USA
| | - H Gidding
- National Centre for Immunisation Research and Surveillance, Westmead, New South Wales, Australia; The University of Sydney, Australia
| | - P Hovi
- Department of Public Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - T Vo
- Faculty of Social Sciences, Tampere University, Finland
| | - F Cui
- School of Public Health, Peking University, China
| | - L Deng
- National Centre for Immunisation Research and Surveillance, Westmead, New South Wales, Australia
| | - L Cullen
- Public Health Scotland, Glasgow, Scotland, United Kingdom
| | - M Artama
- Faculty of Social Sciences, Tampere University, Finland
| | - H Lu
- Department of Statistics, University of Auckland, New Zealand; Global Vaccine Data Network, Global Coordinating Centre, Auckland, New Zealand
| | - H J Clothier
- Global Vaccine Data Network, Global Coordinating Centre, Auckland, New Zealand; Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - K Batty
- Auckland UniServices Limited at University of Auckland, New Zealand
| | - J Paynter
- School of Population Health, University of Auckland, New Zealand
| | - H Petousis-Harris
- Global Vaccine Data Network, Global Coordinating Centre, Auckland, New Zealand; School of Population Health, University of Auckland, New Zealand
| | - J Buttery
- Global Vaccine Data Network, Global Coordinating Centre, Auckland, New Zealand; Murdoch Children's Research Institute, Parkville, Victoria, Australia; University of Melbourne, Parkville, Victoria, Australia
| | - S Black
- Global Vaccine Data Network, Global Coordinating Centre, Auckland, New Zealand; School of Population Health, University of Auckland, New Zealand
| | - A Hviid
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark; Pharmacovigilance Research Center, Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Wu Y, Xu W, Lu H, Liu L, Liu S, Yang W. Clinicopathological features and prognostic factors of salivary gland myoepithelial carcinoma: institutional experience of 42 cases. Int J Oral Maxillofac Surg 2024; 53:268-274. [PMID: 37591716 DOI: 10.1016/j.ijom.2023.07.009] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 07/06/2023] [Accepted: 07/10/2023] [Indexed: 08/19/2023]
Abstract
Myoepithelial carcinoma (MECA) is a rare type of carcinoma for which the clinicopathological features and prognostic factors have not yet been fully clarified. A retrospective study of 42 patients diagnosed with salivary gland MECA was performed, focusing on the clinicopathological features and prognostic factors. Of the 42 patients, 20 died of cancer, 20 lived without tumour, one lived with distant metastasis, and one was lost to follow-up. Overall, 69.0% had tumour recurrence, 16.7% had cervical nodal metastasis, and 21.4% had distant metastasis. The 5-year overall survival rate was 70.2%. Kaplan-Meier analysis revealed that patients with pathological positive lymph nodes (pN+), multiple recurrences of tumour, and higher histological grade had worse overall survival. Multivariate Cox analysis indicated pN+ and higher histological grade to be independent predictors of decreased survival. The 5-year overall survival rate in the pN0 group was 87.5%, while that in the pN+ group was 28.6%. In conclusion, myoepithelial carcinoma can be defined as a tumour with a high incidence of recurrence and poor prognosis, especially in pN+ patients. Pathological positive lymph nodes and histological grade may serve as predictors of survival.
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Affiliation(s)
- Y Wu
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; College of Stomatology, Shanghai Jiao Tong University, Shanghai, China; National Center for Stomatology, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China.
| | - W Xu
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; College of Stomatology, Shanghai Jiao Tong University, Shanghai, China; National Center for Stomatology, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China.
| | - H Lu
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; College of Stomatology, Shanghai Jiao Tong University, Shanghai, China; National Center for Stomatology, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China.
| | - L Liu
- Department of Oral Pathology,Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - S Liu
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; College of Stomatology, Shanghai Jiao Tong University, Shanghai, China; National Center for Stomatology, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China.
| | - W Yang
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; College of Stomatology, Shanghai Jiao Tong University, Shanghai, China; National Center for Stomatology, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China.
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4
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Xu M, Chen C, Chang X, Chen Q, Lu H. Dielectric Liquid Microlens Array with Tunable Focal Length Based on Microdroplet Array Created via Dip-Coating Method. Langmuir 2024; 40:5809-5817. [PMID: 38445621 DOI: 10.1021/acs.langmuir.3c03689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
A dielectric liquid microlens array (LMA) with a tunable focal length was fabricated by using a microdroplet array generated through the dip-coating method. The process began with treating the octadecyltrichlorosilane (OTS) layer with selective UV/O3 irradiation for 20 min to establish a hydrophilic-hydrophobic patterning surface. The substrate was subsequently immersed in glycerol and then withdrawn at a constant rate to create a microdroplet array. Upon filling the cell with matching oil (SL5267) and placing it within a square array of a 200 μm diameter glycerol microdroplet array, the LMA was produced. The focal length ranged from approximately -0.96 to -0.3 mm within a voltage range of 0 to 60 Vrms. The glycerol microdroplets, characterized by their shapes, sizes, curvatures, and filling factors, can be precisely controlled by designing an OTS patterning or adjusting the dip-coating speed. This approach offers a rapid and high-throughput method for preparation. Our approach to fabricating tunable LMA offers several advantages, including simplicity of fabrication, uniform structural properties, cost-effectiveness, polarization independence, and excellent optical performance. These focus-tunable LMAs hold significant potential for applications in image processing, 3D displays, medical endoscopy, and military technologies.
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Affiliation(s)
- Miao Xu
- Academy of Opto-Electric Technology, Special Display and Imaging Technology, Innovation Center of Anhui Province, National Engineering Laboratory of Special Display Technology, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Anhui Provincial Engineering Research Center of Semiconductor Inspection Technology and Instrument, Hefei University of Technology, Hefei 230009, China
| | - Cuifen Chen
- Academy of Opto-Electric Technology, Special Display and Imaging Technology, Innovation Center of Anhui Province, National Engineering Laboratory of Special Display Technology, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Anhui Provincial Engineering Research Center of Semiconductor Inspection Technology and Instrument, Hefei University of Technology, Hefei 230009, China
| | - Xueying Chang
- Academy of Opto-Electric Technology, Special Display and Imaging Technology, Innovation Center of Anhui Province, National Engineering Laboratory of Special Display Technology, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Anhui Provincial Engineering Research Center of Semiconductor Inspection Technology and Instrument, Hefei University of Technology, Hefei 230009, China
| | - Qilong Chen
- Academy of Opto-Electric Technology, Special Display and Imaging Technology, Innovation Center of Anhui Province, National Engineering Laboratory of Special Display Technology, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Anhui Provincial Engineering Research Center of Semiconductor Inspection Technology and Instrument, Hefei University of Technology, Hefei 230009, China
| | - Hongbo Lu
- Academy of Opto-Electric Technology, Special Display and Imaging Technology, Innovation Center of Anhui Province, National Engineering Laboratory of Special Display Technology, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Anhui Provincial Engineering Research Center of Semiconductor Inspection Technology and Instrument, Hefei University of Technology, Hefei 230009, China
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Zhou HB, Feng LJ, Weng XH, Wang T, Lu H, Bian YB, Huang ZY, Zhang JL. Inhibition mechanism of cordycepin and ergosterol from Cordyceps militaris Link. against xanthine oxidase and cyclooxygenase-2. Int J Biol Macromol 2024; 258:128898. [PMID: 38141695 DOI: 10.1016/j.ijbiomac.2023.128898] [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: 10/20/2023] [Revised: 12/06/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
Cordyceps militaris Link. (C. militaris) is an entomopathogenic fungus that parasitizes the pupa or cocoon of lepidopteran insect larvae, with various bioactive compounds. Cordycepin and ergosterol are the two active components in C. militaris. This study aimed to evaluate the inhibitory activity of cordycepin and ergosterol against xanthine oxidase (XO) and cyclooxygenase-2 (COX-2), as well as investigate the inhibition mechanism. Cordycepin could better inhibit XO (IC50 = 0.014 mg/mL) and COX-2 (IC50 = 0.055 mg/mL) than ergosterol. Additionally, surface hydrophobicity and circular dichroism (CD) spectra results confirmed the conformational changes in enzymes induced by cordycepin and ergosterol. Finally, cordycepin and ergosterol significantly decreased uric acid (UA) and inflammatory factors to normal level in mice with gouty nephropathy (GN). This study could provide theoretical evidence for utilization of C. militaris in hyperuricemia-management functional foods.
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Affiliation(s)
- H B Zhou
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - L J Feng
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - X H Weng
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - T Wang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - H Lu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Y B Bian
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; Wuhan HUAYU XINMEI Mushroom industry Company Limited, Wuhan 430070, China
| | - Z Y Huang
- Wuhan HUAYU XINMEI Mushroom industry Company Limited, Wuhan 430070, China
| | - J L Zhang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Key Laboratory of Environment Correlative Dietology, Ministry of Education, Wuhan, Hubei 430070, China.
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Liu JH, Wang Q, Li SF, Deng GD, Li L, Ma J, Yuan MZ, Jiao YH, Lu H. [Clinical characteristics and surgical outcomes of pediatric epiretinal membranes without specific etiologies]. Zhonghua Yan Ke Za Zhi 2024; 60:43-48. [PMID: 38199767 DOI: 10.3760/cma.j.cn112142-20231014-00141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Objective: To describe clinical characteristics and surgical outcomes of pediatric epiretinal membranes (ERMs) without specific etiologies. Methods: Medical data of a cohort of pediatric patients (≤14 years) who had ERMs without specific etiologies, underwent surgical removal from January 2019 to September 2021, and were followed up for at least 12 months were retrospectively reviewed. Age at presentation, chief complaints, color fundus photographs, optical coherence tomographic images, preoperative and postoperative visual acuities, anatomical changes, and postoperative complications were assessed. Results: There were 14 patients (17 eyes), including 5 females (6 eyes) and 9 males (11 eyes). The mean age at surgery was 6.31±2.91 years, and the follow-up duration was 17.3±9.5 months. Eight patients were found to have low vision in the school physical examination. Fifteen eyes had an appearance of cellophane macular reflex on fundus images. On optical coherence tomographic images, 10 eyes had"taco"folds, and 7 eyes had"ripple"folds. Five eyes had ellipsoid zone disruptions, while 12 eyes had ellipsoid zone integrity. The preoperative and postoperative best-corrected visual acuities in logMAR were 0.532±0.302 and 0.340±0.298. One patient suffered traumatic cataract and secondary retinal detachment postoperatively, and after further vitrectomy, the retina became attached. Conclusion: Pediatric ERMs without specific etiologies were mostly found in school-age children with cellophane macular reflex and"taco"folds. Vitrectomy may result in both potential visual acuity and macular anatomical improvements.
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Affiliation(s)
- J H Liu
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Ophthalmology, Beijing Key Laboratory of Ophthalmology & Visual Sciences, Beijing 100730, China
| | - Q Wang
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Ophthalmology, Beijing Key Laboratory of Ophthalmology & Visual Sciences, Beijing 100730, China
| | - S F Li
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Ophthalmology, Beijing Key Laboratory of Ophthalmology & Visual Sciences, Beijing 100730, China
| | - G D Deng
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Ophthalmology, Beijing Key Laboratory of Ophthalmology & Visual Sciences, Beijing 100730, China
| | - L Li
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Ophthalmology, Beijing Key Laboratory of Ophthalmology & Visual Sciences, Beijing 100730, China
| | - J Ma
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Ophthalmology, Beijing Key Laboratory of Ophthalmology & Visual Sciences, Beijing 100730, China
| | - M Z Yuan
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Ophthalmology, Beijing Key Laboratory of Ophthalmology & Visual Sciences, Beijing 100730, China
| | - Y H Jiao
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Ophthalmology, Beijing Key Laboratory of Ophthalmology & Visual Sciences, Beijing 100730, China
| | - H Lu
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Ophthalmology, Beijing Key Laboratory of Ophthalmology & Visual Sciences, Beijing 100730, China
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Han YY, Zhang QH, Chen WS, Li ZL, Xie D, Zhang SL, Lu H, Wang LW, Xu ZH, Zhang LZ. Fermented rape pollen powder can alleviate benign prostatic hyperplasia in rats by reducing hormone content and changing gut microbiota. Benef Microbes 2023; 14:503-524. [PMID: 38656098 DOI: 10.1163/18762891-20230039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 09/22/2023] [Indexed: 04/26/2024]
Abstract
Benign prostatic hyperplasia (BPH) can cause urethral compression, bladder stone formation, and renal function damage, which may endanger the life of patients. Therefore, we aimed to develop plant-based preparations for BPH treatment with no side effects. In this study, the Lactiplantibacillus plantarum 322Hp, Lactobacillus acidophilus 322Ha, and Limosilactobacillus reuteri 322Hr were used to ferment rape pollen. The fermented rape pollen was subsequently converted into fermented rape pollen powder (FRPP) through vacuum freeze-drying technology. After fermenting and drying, the bioactive substances and antioxidant capacity of FRPP were significantly higher than those of unfermented rapeseed pollen, and FRPP had a longer storage duration, which can be stored for over one year. To investigate the therapeutic effect of FRPP on BPH, a BPH rat model was established by hypodermic injection of testosterone propionate. The BPH rats were treated differently, with the model group receiving normal saline, the positive control group receiving finasteride, and the low, medium, and high dose FRPP group receiving FRPP at doses of 0.14 g/kg/d, 0.28 g/kg/d, and 0.56 g/kg/d, respectively. The results indicate that medium dose FRPP reduced the levels of hormone such as testosterone, dihydrotestosterone, and oestradiol in rats with BPH by about 32%, thus bringing the prostate tissue of BPH rats closer to normal. More importantly, medium dose FRPP treatment had a significant effect on the composition of gut microbiota in rats with BPH, increasing the levels of beneficial genera (such as Coprococcus and Jeotgalicoccus), and decreasing the levels of harmful pathogens (such as Turicibacter and Clostridiaceae_Clostridium) in the gut. This study showed that medium dose FRPP reduced the hormone level and regulated the unbalanced gut microbiota in BPH rats, thereby alleviating BPH.
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Affiliation(s)
- Y Y Han
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - Q H Zhang
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - W S Chen
- Nanjing Jiufengtang Bee Products Co., Ltd, Nanjing, 210000, China P.R
| | - Z L Li
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - D Xie
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - S L Zhang
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - H Lu
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - L W Wang
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - Z H Xu
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - L Z Zhang
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, China P.R
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Yu X, Lu H, Peng J, Ren J, Wang Y, Chen J. Modified Lignin-Based Cement Solidifying Material for Improving Engineering Residual Soil. Materials (Basel) 2023; 16:7100. [PMID: 38005030 PMCID: PMC10672641 DOI: 10.3390/ma16227100] [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] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/02/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023]
Abstract
Although lignin improves the strength and modulus of soil, it is less active when unmodified, and it exhibits more limited effects on soils in combination with traditional Ca-based curing agents. Lignin-solidified soil also exhibits deficiencies, such as poor durability under dry-wet cycling conditions, and thus, the amelioration effect is limited. This study investigated the enhancement of cement-solidified soil using hydroxylated lignin with sodium silicate and quicklime used as activators to improve the engineering performance and durability of the treated soil. Using respective cement, sodium silicate, quicklime, and lignin contents of 7%, 0.4%, 0.2%, and 0.2% with respect to the dry mass of the slag soil, the strength and cohesion of the composite-solidified soil were 1.5 times those of cement-solidified soil, whereas the internal friction angle increased by 5.1°. At a solidifying age of 14 d, the penetration resistance almost doubled, indicating a significant improvement in the bearing capacity of the soil. The results suggest that modified lignin-based admixtures may significantly enhance the performance of cement-solidified soil. The cement curing admixture used in this study provides theoretical and technological support for curing agent preparation and the utilization of slag.
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Affiliation(s)
- Xiang Yu
- Power China Huadong Engineering Corporation Limited, Hangzhou 311122, China; (X.Y.); (J.R.); (Y.W.); (J.C.)
- College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China;
| | - Hongbo Lu
- Power China Huadong Engineering Corporation Limited, Hangzhou 311122, China; (X.Y.); (J.R.); (Y.W.); (J.C.)
| | - Jie Peng
- College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China;
| | - Jinming Ren
- Power China Huadong Engineering Corporation Limited, Hangzhou 311122, China; (X.Y.); (J.R.); (Y.W.); (J.C.)
| | - Yongmin Wang
- Power China Huadong Engineering Corporation Limited, Hangzhou 311122, China; (X.Y.); (J.R.); (Y.W.); (J.C.)
| | - Junhao Chen
- Power China Huadong Engineering Corporation Limited, Hangzhou 311122, China; (X.Y.); (J.R.); (Y.W.); (J.C.)
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Lu H, Tang FL, Li M, Tian Y. Gut Microbiota-Derived D-Tagatose from EGCG Attenuates Radiation-Induced Intestinal Injury. Int J Radiat Oncol Biol Phys 2023; 117:S11. [PMID: 37784289 DOI: 10.1016/j.ijrobp.2023.06.224] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) As a rapidly self-renewing tissue, the small intestine is particularly sensitive to ionizing radiation, which limits the outcomes of radiotherapy against abdominal malignancies, resulting in poor prognosis. The polyphenol (-)-epigallocatechin-3-gallate (EGCG), a major bioactive constituent of green tea, is beneficial in radiation-induced intestinal injury (RIII) alleviation. However, the bioavailability of EGCG in vivo is very low, with only 0.1% to 1.6% being absorbed into the intestine of mice. It is unclear whether gut microbial metabolites mediated by EGCG exert an effect to protect against radiation-induced intestinal injury. MATERIALS/METHODS Male C57BL/6J mice were subjected to 13 Gy abdominal irradiation after EGCG gavage, and the severity of intestinal tissue damage was evaluated by HE staining, immunohistochemistry, and TUNEL assays. Fresh fecal samples were collected after the end of gavage, and then fecal sterile fecal filtrate (SFF) was obtained. Stool samples were collected 3 d after irradiation. The gut microbiome was detected by 16S rRNA sequencing, the metabolites were detected by GC‒MS analysis, and then the metabolites were applied to male C57BL/6J mice, observing and evaluating the severity of RIII. RESULTS We first explored the effect of oral EGCG delivery on radiation-induced intestinal injury. Our results revealed that EGCG pre-supplementation prolongs survival time, prevents weight loss in mice and mitigates radiation-induced intestinal injury in irradiated mice. Using 16S rRNA gene-based microbiota analysis, we first found that EGCG ameliorated ionizing radiation-induced gut microbiota dysbiosis and enriched short-chain fatty acid (SCFA)-producing bacteria such as Roseburia, Ruminococcus, and Clostridia_UCG-014. In addition, metabolomic profiling analysis showed that the gut microbiota modulated EGCG-induced metabolic reprogramming in colonic tissues, particularly by enhancing galactose metabolism. Notably, EGCG supplementation resulted in the enrichment of the microbiota-derived galactose metabolism metabolite D-tagatose. Furthermore, exogenous treatment with D-tagatose reproduced similar protective effects as EGCG to protect against radiation-induced intestinal injury (RIII). D-tagatose restored the length of villi and improved the number of goblet cells, Ki-67-positive cells and Lgr5+ ISCs, while the number of TUNEL-positive cells in the intestinal tissues decreased significantly. To validate these discoveries, we performed fecal sterile fecal filtrate (SFF) from EGCG-dosed mice to untreated mice before ionizing radiation. SFF from EGCG-dosed mice alleviated the RIII over SFF from control mice superiorly. CONCLUSION This study provides the first data indicating that oral EGCG ameliorated radiation-induced intestinal injury (RIII) by regulating the gut microbiota and metabolites. Our findings provide novel insights into D-tagatose derived by gut microbiota from EGCG-mediated remission of RIII.
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Affiliation(s)
- H Lu
- Department of Radiotherapy & Oncology, The Second Affiliated Hospital of Soochow University, Suchow, China
| | - F L Tang
- The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - M Li
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China
| | - Y Tian
- Institute of Radiotherapy & Oncology, Soochow University, Suzhou, China
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Xie L, Lu H, Li M, Tian Y. Probiotic Consortia and their Metabolites Protect Intestine Against Radiation Injury by Improving Intestinal Epithelial Homeostasis. Int J Radiat Oncol Biol Phys 2023; 117:e269. [PMID: 37785018 DOI: 10.1016/j.ijrobp.2023.06.1233] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The intestine is a highly radiosensitive tissue that is susceptible to structural and functional damage due to systemic as well as localized radiation exposure. Unfortunately, no therapeutic agents are available at present to manage radiation-induced intestinal injuries (RIII). Probiotics, especially Lactobacillus or Bifidobacterium, are orally taken as food supplements or microbial drugs by patients with gastrointestinal disorders due to their safety, efficacy, and power to restore the gut microenvironment. Our results demonstrate that probiotic consortia and their metabolites could exert protective roles in the RIII mouse model by restoring the structure of the gut microbiota and regulating redox imbalance. Moreover, the effect of probiotic consortia is better than that of any single probiotic strain. MATERIALS/METHODS Male C57BL/6J mice were treated with 13 Gy of whole abdominal irradiation (WAI). Probiotics were administered by gavage before (once a day for 30 days) WAI. The survival and body weight were recorded, while the severity of RIII was evaluated by HE staining, immunohistochemistry (IHC) and TUNEL assay of gut tissues. Meanwhile, stool samples were obtained 3.5 d after irradiation. Gut microbiome were measured by 16S rRNA sequencing, and metabolites were detected by LC-MS analysis. For sterile fecal filtrate (SFF), the supernatants were collected and passed through 70 and 0.2μm filters. RESULTS Compared to the control, probiotic consortia (Lactobacillus plantarum, Bifidobacterium longum, Lactobacillus paracasei) treatment significantly increased survival rates by 50% (P<0.05) and improved clinical scores of mice after WAI. HE staining showed that probiotics mitigated RIII, as reflected by the dramatic attenuation of crypt-villus architecture destruction. IHC results showed that probiotic consortia treatment markedly increased the Lgr5+ cells, Paneth cells, and Ki67+ cells (P<0.001) per crypt, indicating that probiotics promoted the proliferation and differentiation of ISCs after WAI. Consistent with the H&E staining, the level of CD4/CD8 was increased by the probiotic consortia compared with that of the control group. The probiotic consortia modulated the structure of the gut microbiota and metabolites in the RIII mouse model. To further investigate the impact of metabolites on RIII, crude probiotic fermentation metabolites were administered to the RIII mouse model. Specifically, mice fed the mixed-metabolite daily for 7 days before IR had significantly more Lgr5+ and Ki67+cells in the SI crypt than mice of control. Moreover, treatment with mixed metabolites resulted in insignificant changes in SOD, MDA, GSH and T-AOC activity compared to the control group in intestinal tissues. CONCLUSION In the present study, we demonstrate that probiotic consortia and their metabolites treatment attenuate RIII by modulating the structure and composition of the gut microbiota and regulating redox imbalance.
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Affiliation(s)
- L Xie
- Department of Radiotherapy and Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - H Lu
- Department of Radiotherapy & Oncology, The Second Affiliated Hospital of Soochow University, Suchow, China
| | - M Li
- School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou, China
| | - Y Tian
- Institute of Radiotherapy & Oncology, Soochow University, Suzhou, China
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Deng G, Kou Z, Guo A, Yin Z, Li Y, Yang J, Lu H, Hu M, Li J. Electrically controllable broadband reflective linear cross-polarization conversion based on liquid crystals. Opt Express 2023; 31:27420-27432. [PMID: 37710818 DOI: 10.1364/oe.496945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 07/21/2023] [Indexed: 09/16/2023]
Abstract
This paper presents an electrically controllable reflective broadband linear polarization (LP) converter based on liquid crystals (LCs) for cross-polarization conversion (CPC) in the terahertz frequency range. The proposed structure achieves a high polarization conversion ratio (PCR) exceeding 0.9 within the frequency range of 236.8 - 269.6 GHz. A vital feature of this design is the dynamic control of polarization conversion by re-orienting the nematic liquid crystal molecules through voltage bias switching between 'on' and 'off' states, allowing for precise manipulation of cross-polarized and co-polarized reflected waves. Experimental results validate the simulation outcomes, demonstrating excellent agreement. In contrast to conventional reflective polarization converters with fixed frequency responses, the proposed electrically controllable polarization conversion offers significant potential in imaging and optical communications.
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Ma C, Bai H, Liang Y, Zhu M, Zhu J, Qiu L, Lu H, Xu M. Multi-stable dye-doped dual-frequency twisted nematic liquid crystal smart window. Opt Lett 2023; 48:3813-3816. [PMID: 37450757 DOI: 10.1364/ol.493030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 06/22/2023] [Indexed: 07/18/2023]
Abstract
In this study, a novel, to the best of our knowledge, dye-doped dual-frequency liquid crystal multi-stable smart window is proposed. A chiral dopant with appropriate content was introduced into dye-doped dual-frequency liquid crystals to achieve an initial 180° twisted state. These liquid crystals can be switched to a nematic phase or a 360° twisted state by controlling the magnitude and frequency of the applied voltage. These nematic phase and 360° twisted states can exist stably for a long time because of the backflow effect and the anisotropic nature of the dual-frequency liquid crystal material. Due to the optical waveguide effect of dye-doped liquid crystals in the long-pitch state, the transmittance was different in nematic phase, 180°, and 360° twisted three zero-field stabilized absorption states. Finally, a multi-stable smart window is developed to switch between three zero-field stabilized absorption and scattering states.
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Siddique MS, Lu H, Xiong X, Fareed H, Graham N, Yu W. Exploring impacts of water-extractable organic matter on pre-ozonation followed by nanofiltration process: Insights from pH variations on DBPs formation. Sci Total Environ 2023; 876:162695. [PMID: 36898544 DOI: 10.1016/j.scitotenv.2023.162695] [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] [Received: 11/01/2022] [Revised: 03/03/2023] [Accepted: 03/03/2023] [Indexed: 06/18/2023]
Abstract
This study investigated the influence of pH (4-10) on the treatment of water-extractable organic matter (WEOM), and the associated disinfection by-products (DBPs) formation potential (FP), during the pre-ozonation/nanofiltration treatment process. At alkaline pH (9-10), a rapid decline in water flux (> 50 %) and higher membrane rejection was observed, as a consequence of the increased electrostatic repulsion forces between the membrane surface and organic species. Parallel factor analysis (PARAFAC) modeling and size exclusion chromatography (SEC) provides detailed insights into the WEOM compositional behavior at different pH levels. Ozonation at higher pH significantly reduced the apparent molecular weight (MW) of WEOM in the 4000-7000 Da range by transforming the large MW (humic-like) substances into small hydrophilic fractions. Fluorescence components C1 (humic-like) and C2 (fulvic-like) exhibited a predominant increase/decrease in concentration for all pH conditions during pre-ozonation and nanofiltration treatment process, however, the C3 (protein-like) component was found highly associated with the reversible and irreversible membrane foulants. The ratio C1/C2 provided a strong correlation with the formation of total trihalomethanes (THMs) (R2 = 0.9277) and total haloacetic acids (HAAs) (R2 = 0.5796). The formation potential of THMs increased, and HAAs decreased, with the increase of feed water pH. Ozonation markedly reduced the formation of THMs by up to 40 % at higher pH levels, but increased the formation of brominated-HAAs by shifting the formation potential of DBPs towards brominated precursors.
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Affiliation(s)
- Muhammad Saboor Siddique
- State Key Laboratory of Environmental Aquatic Chemistry, Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Hongbo Lu
- Power China Huadong Engineering Corporation Limited, Hangzhou, Zhejiang 311122, People's Republic of China.
| | - Xuejun Xiong
- State Key Laboratory of Environmental Aquatic Chemistry, Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China
| | - Hasan Fareed
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Nigel Graham
- Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.
| | - Wenzheng Yu
- State Key Laboratory of Environmental Aquatic Chemistry, Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China.
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Xu J, Cai M, Wang Z, Chen Q, Han X, Tian J, Jin S, Yan Z, Li Y, Lu B, Lu H. Phenylacetylglutamine as a novel biomarker of type 2 diabetes with distal symmetric polyneuropathy by metabolomics. J Endocrinol Invest 2023; 46:869-882. [PMID: 36282471 PMCID: PMC10105673 DOI: 10.1007/s40618-022-01929-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/23/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE Type 2 diabetes mellitus (T2DM) with distal symmetric polyneuropathy (DSPN) is a disease involving the nervous system caused by metabolic disorder, while the metabolic spectrum and key metabolites remain poorly defined. METHODS Plasma samples of 30 healthy controls, 30 T2DM patients, and 60 DSPN patients were subjected to nontargeted metabolomics. Potential biomarkers of DSPN were screened based on univariate and multivariate statistical analyses, ROC curve analysis, and logistic regression. Finally, another 22 patients with T2DM who developed DSPN after follow-up were selected for validation of the new biomarker based on target metabolomics. RESULTS Compared with the control group and the T2DM group, 6 metabolites showed differences in the DSPN group (P < 0.05; FDR < 0.1; VIP > 1) and a rising step trend was observed. Among them, phenylacetylglutamine (PAG) and sorbitol displayed an excellent discriminatory ability and associated with disease severity. The verification results demonstrated that when T2DM progressed to DSPN, the phenylacetylglutamine content increased significantly (P = 0.004). CONCLUSION The discovered and verified endogenous metabolite PAG may be a novel potential biomarker of DSPN and involved in the disease pathogenesis.
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Affiliation(s)
- J. Xu
- Department of Endocrinology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 China
| | - M. Cai
- Department of Endocrinology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 China
| | - Z. Wang
- Department of Emergency, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 China
| | - Q. Chen
- Department of Endocrinology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 China
| | - X. Han
- Department of Endocrinology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 China
| | - J. Tian
- Department of Endocrinology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 China
| | - S. Jin
- Department of Endocrinology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 China
| | - Z. Yan
- Department of Endocrinology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 China
| | - Y. Li
- Department of Endocrinology and Metabolism, Huashan Hospital, Fudan University, Shanghai, 200040 China
| | - B. Lu
- Department of Endocrinology and Metabolism, Huashan Hospital, Fudan University, Shanghai, 200040 China
| | - H. Lu
- Department of Endocrinology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 China
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Hurvitz S, Schott A, Ma C, Hamilton E, Nanda R, Zahrah G, Hunter N, Tan A, Telli M, Mesias J, Jeselsohn R, Munster P, Lu H, Gedrich R, Mather C, Parameswaran J, Han H, Wirth S. P253 ARV-471, a PROTAC® estrogen receptor (ER) degrader in advanced ER+/human epidermal growth factor receptor 2 (HER2)- breast cancer: phase 2 expansion (VERITAC) of a phase 1/2 study. Breast 2023. [DOI: 10.1016/s0960-9776(23)00371-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
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16
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Harmer V, Harbeck N, Boyle F, Werutsky G, Ammendolea C, El Mouzain D, Marshall D, Thomas C, Heidenreich S, Lu H, Dionne PA, Gao M, Aubel D, Pathak P, Ryan M. P263 Patients’ perspectives on treatments for HR+/HER2– early breast cancer: developing a quantitative patient preference survey. Breast 2023. [DOI: 10.1016/s0960-9776(23)00381-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023] Open
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17
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Bonazzi S, d'Hennezel E, Beckwith REJ, Xu L, Fazal A, Magracheva A, Ramesh R, Cernijenko A, Antonakos B, Bhang HEC, Caro RG, Cobb JS, Ornelas E, Ma X, Wartchow CA, Clifton MC, Forseth RR, Fortnam BH, Lu H, Csibi A, Tullai J, Carbonneau S, Thomsen NM, Larrow J, Chie-Leon B, Hainzl D, Gu Y, Lu D, Meyer MJ, Alexander D, Kinyamu-Akunda J, Sabatos-Peyton CA, Dales NA, Zécri FJ, Jain RK, Shulok J, Wang YK, Briner K, Porter JA, Tallarico JA, Engelman JA, Dranoff G, Bradner JE, Visser M, Solomon JM. Discovery and characterization of a selective IKZF2 glue degrader for cancer immunotherapy. Cell Chem Biol 2023; 30:235-247.e12. [PMID: 36863346 DOI: 10.1016/j.chembiol.2023.02.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [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: 06/11/2022] [Revised: 12/15/2022] [Accepted: 02/09/2023] [Indexed: 03/04/2023]
Abstract
Malignant tumors can evade destruction by the immune system by attracting immune-suppressive regulatory T cells (Treg) cells. The IKZF2 (Helios) transcription factor plays a crucial role in maintaining function and stability of Treg cells, and IKZF2 deficiency reduces tumor growth in mice. Here we report the discovery of NVP-DKY709, a selective molecular glue degrader of IKZF2 that spares IKZF1/3. We describe the recruitment-guided medicinal chemistry campaign leading to NVP-DKY709 that redirected the degradation selectivity of cereblon (CRBN) binders from IKZF1 toward IKZF2. Selectivity of NVP-DKY709 for IKZF2 was rationalized by analyzing the DDB1:CRBN:NVP-DKY709:IKZF2(ZF2 or ZF2-3) ternary complex X-ray structures. Exposure to NVP-DKY709 reduced the suppressive activity of human Treg cells and rescued cytokine production in exhausted T-effector cells. In vivo, treatment with NVP-DKY709 delayed tumor growth in mice with a humanized immune system and enhanced immunization responses in cynomolgus monkeys. NVP-DKY709 is being investigated in the clinic as an immune-enhancing agent for cancer immunotherapy.
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Affiliation(s)
- Simone Bonazzi
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA.
| | - Eva d'Hennezel
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA.
| | | | - Lei Xu
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Aleem Fazal
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Anna Magracheva
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Radha Ramesh
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | | | | | - Hyo-Eun C Bhang
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | | | - Jennifer S Cobb
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | | | - Xiaolei Ma
- Novartis Institutes for Biomedical Research, Emeryville, CA, USA
| | | | | | - Ry R Forseth
- Novartis Institutes for Biomedical Research, East Hanover, NJ, USA
| | | | - Hongbo Lu
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Alfredo Csibi
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Jennifer Tullai
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Seth Carbonneau
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Noel M Thomsen
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Jay Larrow
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | | | - Dominik Hainzl
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Yi Gu
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Darlene Lu
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Matthew J Meyer
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Dylan Alexander
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | | | | | - Natalie A Dales
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | | | - Rishi K Jain
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Janine Shulok
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Y Karen Wang
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Karin Briner
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | | | | | | | - Glenn Dranoff
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - James E Bradner
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Michael Visser
- Novartis Institutes for Biomedical Research, Cambridge, MA, USA
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Li F, Liu YP, Zhu H, Hong M, Qian SX, Zhu Y, Shen WY, Chen LJ, He GS, Wu HX, Lu H, Li JY, Miao KR. [Clinical study of induction chemotherapy followed by allogeneic hematopoietic stem cell transplantation in the treatment of FLT3-ITD(+) acute myeloid leukemia with normal karyotype]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:230-235. [PMID: 37356985 DOI: 10.3760/cma.j.issn.0253-2727.2023.03.009] [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] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
Objective: To assess the efficacy of induction chemotherapy followed by allogeneic hematopoietic stem cell transplantation (allo-HSCT) in the treatment of FLT3-ITD(+) acute myeloid leukemia (AML) with normal karyotype. Methods: The clinical data of FLT3-ITD(+) AML patients with normal karyotype in the First Affiliated Hospital of Nanjing Medical University from Jan 2018 to March 2021 were retrospectively analyzed. Results: The study included 49 patients with FLT3-ITD(+)AML, 31 males, and 18 females, with a median age of 46 (16-59) years old. All patients received induction chemotherapy, and 24 patients received sequential allo-HSCT (transplantation group) . The median follow-up time was 465 days, the one-year overall survival (OS) from diagnosis was (70.0 ± 7.4) %, and one-year disease-free survival (DFS) was (70.3±7.4) %. The one-year OS was significantly different between the transplantation group and the non-transplantation group [ (85.2 ± 7.9) % vs (52.6 ± 12.3) %, P=0.049]. but one-year DFS [ (84.7 ± 8.1) % vs (55.2 ± 11.9) %, P=0.061] was not. No significance was found in one-year OS between patients with low-frequency and high-frequency FLT3-ITD(+) (P>0.05) . There were 12 patients with high-frequency FLT3-ITD(+) in the transplantation and the non-transplantation groups, respectively. The one-year OS [ (68.8 ± 15.7) % in the transplantation group vs (26.2 ± 15.3) % in the non-transplantation group, P=0.027] and one-year DFS [ (45.5 ± 21.3) % in the transplantation group vs (27.8±15.8) % in the non-transplantation group, P=0.032] were significantly different between the two groups. Conclusion: Induction chemotherapy followed by allo-HSCT can enhance the prognosis of FLT3-ITD(+) patients, particularly those with FLT3-ITD high-frequency mutation.
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Affiliation(s)
- F Li
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Y P Liu
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - H Zhu
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - M Hong
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - S X Qian
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Y Zhu
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - W Y Shen
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - L J Chen
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - G S He
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - H X Wu
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - H Lu
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - J Y Li
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - K R Miao
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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Zhang G, Fang Q, Li Y, Yang J, Hu M, Li J, Deng G, Yin Z, Lu H. Manipulation of sub-terahertz waves using digital coding metasurfaces based on liquid crystals. Opt Express 2023; 31:9428-9436. [PMID: 37157514 DOI: 10.1364/oe.486146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
This paper presents a novel sub-terahertz liquid crystal (LC) phase shifter based on digital coding metasurfaces. The proposed structure consists of metal gratings and resonant structures. They are both immersed in LC. The metal gratings function as reflective surfaces for electromagnetic waves and electrodes for controlling the LC layer. The proposed structure changes the state of the phase shifter by switching the voltage on every grating. It allows the deflection of LC molecules within a subregion of the metasurface structure. Four switchable coding states of the phase shifter are obtained experimentally. The phase of the reflected wave varies by 0°, 102°, 166°, and 233° at 120 GHz. Due to the presence of the transverse control electric field, modulation speed is approximately doubled compared to the free relaxation state. This work provides a novel idea for wavefront modulation of phase.
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Wang W, Ni B, Shen H, Lu H. Meta-analysis of InterTan, PFNA and PFNA-II internal fixation for the treatment of unstable intertrochanteric fractures in elderly individuals. Acta Orthop Belg 2023; 89:51-58. [PMID: 37294985 DOI: 10.52628/89.1.9923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Elderly individuals are often affected by osteoporosis and have poor stability after fracture reduction. Moreover, there is still controversy regarding the clinical effects of the treatment for unstable intertrochanteric fractures in the elderly. The Cochrane, Embase, PubMed, and other databases were searched, and a meta-analysis of the literature on the treatment of unstable intertrochanteric fractures of the elderly with InterTan, PFNA, and PFNA-II was conducted. Seven studies were screened, with a total of 1236 patients. Our meta-analysis results show that InterTan is not significantly different from PFNA in terms of operation and fluoroscopy times, but it takes longer than PFNA-II. In terms of postoperative screw cut, pain, femoral shaft fracture, and secondary operations, InterTan is superior to PFNA and PFNA-II. Conversely, in terms of intraoperative blood loss, hospital stay, and postoperative Harris score, there is no significant difference between InterTan and PFNA and PFNA-II. Compared to PFNA and PFNA-II, InterTan internal fixation has advantages in the treatment of unstable intertrochanteric fractures in elderly individuals in terms of screw cutting, femoral shaft fractures, and secondary operations. However, InterTan operation and fluoroscopy times take longer than PFNA and PFNA-II.
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Xu J, Han X, Chen Q, Cai M, Tian J, Yan Z, Guo Q, Xu J, Lu H. Association between sarcopenia and prediabetes among non-elderly US adults. J Endocrinol Invest 2023:10.1007/s40618-023-02038-y. [PMID: 36856982 DOI: 10.1007/s40618-023-02038-y] [Citation(s) in RCA: 1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 02/08/2023] [Indexed: 03/02/2023]
Abstract
AIM To explore the specific association between sarcopenia and prediabetes based on large population samples. METHODS A total of 16,116 U.S. adults aged 20-59 with dual energy X-ray absorptiometry (DXA) was identified from the National Health and Nutrition Examination Surveys (NHANES). Sarcopenia was defined according to appendicular skeletal muscle mass (ASM) adjusted for body mass index (BMI). Multivariable binary logistic regression models were used to ascertain odds ratios (ORs) for developing prediabetes. Stratified analyses were also performed. RESULTS Prevalence of prediabetes was higher in the sarcopenia group (n = 1055) compared with the non-sarcopenia group (n = 15,061) (45.50% vs 28.74%, P < 0.001). Sarcopenia was strongly associated with an increased risk of prediabetes after full adjustment (OR = 1.21, 95CI%: 1.05, 1.39, P = 0.009). In the stratified analysis, this association remained significant independent of obesity, triglycerides, and low-density lipoprotein cholesterol levels. When sarcopenia subjects combined with obesity especially central obesity, the risk of prediabetes was the highest (OR = 2.63, 95CI%: 2.22, 3.11, P < 0.001). Furthermore, a greater proportion of any of impaired glucose tolerance (IGT) individuals was observed in the sarcopenia group compared to the non-sarcopenia group among prediabetes population (41.72% vs 24.06%, P < 0.001). CONCLUSIONS Sarcopenia was positively associated with prevalent prediabetes especially IGT in the non-elderly. Moreover, synergistic interactions between the sarcopenia and obesity could greatly increase the risk of prediabetes.
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Affiliation(s)
- J Xu
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - X Han
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Q Chen
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - M Cai
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - J Tian
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Z Yan
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Q Guo
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - J Xu
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - H Lu
- Department of Endocrinology, Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
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Xu M, Xue Y, Li J, Zhang L, Lu H, Wang Z. Large-Area and Rapid Fabrication of a Microlens Array on a Flexible Substrate for an Integral Imaging 3D Display. ACS Appl Mater Interfaces 2023; 15:10219-10227. [PMID: 36753424 DOI: 10.1021/acsami.2c20519] [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: 06/18/2023]
Abstract
A curved integral imaging three-dimensional (3D) display attracts a lot of interest due to its enhanced 3D sense of immersion and wider viewing angle. In this paper, a microlens array (MLA) based on a flexible poly(ethylene terephthalate) (PET) substrate was achieved by a straightforward, rapid, and low-cost technique. The reactive ion etching (RIE) process treated PET/CYTOP covered with a flexible mask to generate a hydrophilic-hydrophobic patterned surface. The well-designed arrays of confined adhesive droplets with a controlled geometry on a hydrophilic-hydrophobic patterned surface were formed using the blade-coating method. A flexible MLA with a diameter of 820 μm, a size of 5.3 cm × 5.1 cm, and a radius of curvature of 25 cm was fabricated and combined with a curved two-dimensional (2D) monitor to realize a lateral viewing range of 6.4 cm at a viewing distance of 25 cm, which is 4 times larger than with flat integral imaging 3D display system. The flexible MLA has the advantages of a controllable lens profile and large pitch, and it can be manufactured on a large scale. In addition, it provides a large viewing angle for the reconstructed 3D image.
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Affiliation(s)
- Miao Xu
- Academy of Opto-Electric Technology, Special Display and Imaging Technology, Innovation Center of Anhui Province, National Engineering Laboratory of Special Display Technology, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China
| | - Yingying Xue
- Academy of Opto-Electric Technology, Special Display and Imaging Technology, Innovation Center of Anhui Province, National Engineering Laboratory of Special Display Technology, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China
| | - Jing Li
- Academy of Opto-Electric Technology, Special Display and Imaging Technology, Innovation Center of Anhui Province, National Engineering Laboratory of Special Display Technology, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China
| | - Lyudi Zhang
- Academy of Opto-Electric Technology, Special Display and Imaging Technology, Innovation Center of Anhui Province, National Engineering Laboratory of Special Display Technology, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China
| | - Hongbo Lu
- Academy of Opto-Electric Technology, Special Display and Imaging Technology, Innovation Center of Anhui Province, National Engineering Laboratory of Special Display Technology, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China
| | - Zi Wang
- Academy of Opto-Electric Technology, Special Display and Imaging Technology, Innovation Center of Anhui Province, National Engineering Laboratory of Special Display Technology, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China
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Abstract
1. Methyltransferase-like 21C (METTL21C) and insulin-like growth factor 2 mRNA-binding protein 1 (IGF2BP1) play important roles in the proliferation of chicken myoblasts. However, it remains unclear whether there is protein-protein interaction between METTL21C and IGF2BP1 to regulate proliferation of chicken myoblasts.2. In this study, the Igf2bp1 gene was amplified from cDNA of liver tissue of Lueyang black-bone chicken to construct the overexpression vector HA-Igf2bp1. The HA-Igf2bp1 and Flag-Mettl21c vectors were individually transfected and co-transfected into HEK293T, respectively. Co-immunoprecipitation (Co-IP) assay indicated a protein-protein interaction between METTL21C and IGF2BP1.3. Using the Western blotting and LC-MS/MS, it was found that METTL21C could mediate the lysine methylation modification of IGF2BP1. Furthermore, the His-tagged overexpression vector HA-Igf2bp1-His was constructed, transfected and co-transfected with Flag-Mettl21c into HEK293T. His-tagged IGF2BP1 was purified by nickel ion affinity chromatography. Western blotting revealed that IGF2BP1 was successfully purified, and the trimethylation modification level of co-transfection group was significantly elevated compared with the single-transfection Igf2bp1 group.4. Mettl21c and Igf2bp1 overexpression vectors were transfected and co-transfected into primary chicken myoblasts, respectively. The results of 5-ethynyl-2'-deoxyuridine assay and the expression level of Pax7 and MyoD indicated that overexpression of Igf2bp1 alone inhibited the chicken myoblast proliferation, whereas co-expression of Mettl21c and Igf2bp1 eliminated the inhibitory effects of Igf2bp1, thereby favouring cell proliferation and differentiation.5. The results, for the first time, revealed that METTL21C mediated the lysine trimethylation modification of IGF2BP1 to regulate the proliferation of chicken myoblasts, which provided a new insight into in-depth analysis of the molecular mechanism of METTL21C methylation involved in regulating the growth and development of skeletal muscle in Lueyang black-bone chicken.
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Affiliation(s)
- S Wang
- School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, Shaanxi, China
- Qinba State Key Laboratory of Biological Resources and Ecological Environment, Shaanxi University of Technology, Hanzhong, Shaanxi, China
| | - J Zhao
- School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, Shaanxi, China
| | - L Wang
- School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, Shaanxi, China
- Qinba State Key Laboratory of Biological Resources and Ecological Environment, Shaanxi University of Technology, Hanzhong, Shaanxi, China
| | - T Zhang
- School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, Shaanxi, China
- Department of Biology, QinLing-Bashan Mountains Bioresources Comprehensive Development C. I. C., Hanzhong, Shaanxi, China
| | - W Zeng
- School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, Shaanxi, China
- Department of Biology, QinLing-Bashan Mountains Bioresources Comprehensive Development C. I. C., Hanzhong, Shaanxi, China
| | - H Lu
- School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, Shaanxi, China
- Qinba State Key Laboratory of Biological Resources and Ecological Environment, Shaanxi University of Technology, Hanzhong, Shaanxi, China
- Shaanxi Province Key Laboratory of Bio-resources, Shaanxi University of Technology, Hanzhong, Shaanxi, China
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Ma F, Zhu Y, Chang L, Gong J, Luo Y, Dai J, Lu H. Hydrogen sulfide protects against ischemic heart failure by inhibiting RIP1/RIP3/MLKL-mediated necroptosis. Physiol Res 2022. [DOI: 10.33549/physiolres.934905] [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: 12/23/2022] Open
Abstract
The aim of the present study was to explore whether hydrogen sulfide (H2S) protects against ischemic heart failure (HF) by inhibiting the necroptosis pathway. Mice were randomized into Sham, myocardial infarction (MI), MI + propargylglycine (PAG) and MI + sodium hydrosulfide (NaHS) group, respectively. The MI model was induced by ligating the left anterior descending coronary artery. PAG was intraperitoneally administered at a dose of 50 mg/kg/day for 4 weeks, and NaHS at a dose of 4mg/kg/day for the same period. At 4 weeks after MI, the following were observed: A significant decrease in the cardiac function, as evidenced by a decline in ejection fraction (EF) and fractional shortening (FS); an increase in plasma myocardial injury markers, such as creatine kinase-MB (CK-MB) and cardiac troponin I (cTNI); an increase in myocardial collagen content in the heart tissues; and a decrease of H2S level in plasma and heart tissues. Furthermore, the expression levels of necroptosis-related markers such as receptor interacting protein kinase 1 (RIP1), RIP3 and mixed lineage kinase domain-like protein (MLKL) were upregulated after MI. NaHS treatment increased H2S levels in plasma and heart tissues, preserving the cardiac function by increasing EF and FS, decreasing plasma CK-MB and cTNI and reducing collagen content. Additionally, NaHS treatment significantly downregulated the RIP1/RIP3/MLKL pathway. While, PAG treatment aggravated cardiac function by activated the RIP1/RIP3/MLKL pathway. Overall, the present study concluded that H2S protected against ischemic HF by inhibiting RIP1/RIP3/MLKL-mediated necroptosis which could be a potential target treatment for ischemic HF.
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Affiliation(s)
| | | | | | | | | | - J Dai
- Department of Clinical Diagnostics, Hebei Medical University, 361 Zhongshan Road, Shijiazhuang, Hebei, China.
| | - H Lu
- Department of Pharmacy, Shanghai Pudong Hospital, Fudan University, Shanghai 201399, P.R. China.
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25
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Li L, Lu H. [Research progress of persistent hyperplastic primary vitreous with Peters anomaly]. Zhonghua Yan Ke Za Zhi 2022; 58:1089-1093. [PMID: 36480896 DOI: 10.3760/cma.j.cn112142-20220930-00468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Persistent hyperplastic primary vitreous is a rare congenital ocular developmental malformation caused by the failure of regression of the primary vitreous during the embryonic development period. Peters anomaly is a monogenetic disease of congenital anterior segment dysgenesis. Recent studies have shown that these two diseases may occur concomitantly and be associated with a variety of systemic abnormalities. This review demonstrates the basis of ocular embryonic development, research status of molecular genetics, clinical manifestations, surgical objectives and progress of treatment of persistent hyperplastic primary vitreous with Peters anomaly, in order to provide guidance for clinical practice and research as well as to promote further progression of related gene detection.
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Affiliation(s)
- L Li
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Ophthalmology, Beijing Key Laboratory of Ophthalmology & Visual Sciences, Beijing 100730, China
| | - H Lu
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Ophthalmology, Beijing Key Laboratory of Ophthalmology & Visual Sciences, Beijing 100730, China
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26
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Xu M, Liu Y, Li S, Li J, Zhang L, Lu H. Vari-focal liquid microlens array using an electrically responsive fluid actuated by a ring array patterned electrode. Appl Opt 2022; 61:9781-9787. [PMID: 36606806 DOI: 10.1364/ao.471528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 10/19/2022] [Indexed: 06/17/2023]
Abstract
A transparent fluid dibutyl adipate (DBA) is suitable for fabricating the adaptive lens due to its unique deformation under a direct current (DC) electric field. In this report, a DBA liquid microlens array (LMA) with a tunable focal length is demonstrated. A hydrophobic layer deposited in the ring array patterns on the electrode induced the formation of the DBA liquid microdroplets array self-assembly. The electronegative DBA liquid tends to move to the anode at a DC voltage. The proposed DBA LMA with a diameter of 100 µm can change its focal length from 0.92 to 1.42 mm when the voltage changes from 0 to 200 V. The response time is relatively fast (∼790m s). Due to the high optical transmittance (∼91%) and good thermal stability in the temperature range of -24.8-161.5∘C, our DBA LMA shows good focusing properties and has potential applications in the field of image processing, portable electronic devices, beam steering, ophthalmology, and 3D displays.
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27
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Tu H, Wang Y, Sui J, Li D, Shi X, Li G, Luo Q, Lei Q, Wang C, Wang J, Yan J, Liu M, Lu H. Patient-Derived Oral Squamous Cell Carcinoma Organoids for Predicting Tumoral Radiosensitivity. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1368] [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: 10/31/2022]
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28
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Lu H, Liu Y, Ali A, Tian R, Chen Y, Luo Y. Empirical analysis of the impact of China-Japan-South Korea transportation infrastructure investment on environmental degradation and the validity of the environmental Kuznets curve hypothesis. Front Psychol 2022; 13:977466. [PMID: 36329750 PMCID: PMC9624248 DOI: 10.3389/fpsyg.2022.977466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 09/15/2022] [Indexed: 11/13/2022] Open
Abstract
Building sustainable and affordable transport systems is a key issue for social development and sustainable urban expansion. The study used dynamic ordinary least squares (DOLS) and fully modified ordinary least squares (FMOLS) to examine the impact of transport infrastructure investment on environmental degradation in China, Japan, and South Korea over the period 1995-2020 and the validity of the EKC hypothesis. The results show that GDP has a significant positive effect, and GDP2 and GDP3 have significant adverse effects on environmental degradation, respectively. These results confirm the validity of the inverted U shaped EKC hypothesis in selected Asian countries. Road infrastructure investment has a significant positive effect, while railway infrastructure investment has a significant adverse effect on environmental degradation. Air infrastructure investment and trade opening have a progressive and statistically significant impact on environmental pollution. Modern rail systems that run on electricity are considered less polluting, so the share of rail infrastructure investment in the transport mix can help build sustainable and safe transport systems at the city Centre and intercity levels and reduce emissions in Asian countries. Moreover, strict enforcement of the prevailing environmental conditions of trade agreements should be encouraged to reduce the increasing impact of free trade on environmental pollution.
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Affiliation(s)
- Hongbo Lu
- School of Economics, Jilin University, Changchun, China
| | - Yuanhao Liu
- Faculty of Management and Economics, Kunming University of Science and Technology, Kunming, China
| | - Arshad Ali
- Department of Economics and Finance, Greenwich University, Karachi, Pakistan
| | - Rongzhi Tian
- Institute for International Strategic Studies, CCPS Central Party School, Beijing, China
| | - Yuanchun Chen
- Business School, Zhengzhou University of Industrial Technology, Zhengzhou, China
| | - Yuanwei Luo
- Guangxi University of Finance and Economics, Nanning, China
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29
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Yang J, Xu L, Zhang G, Li Y, Hu M, Li J, Lu H, Deng G, Yin Z. Electrically active control of terahertz waves in a hybrid metasurface-grating structure with a liquid crystal. Appl Opt 2022; 61:8704-8710. [PMID: 36256003 DOI: 10.1364/ao.470935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023]
Abstract
A reflective terahertz phase shifter for wide-range dynamic and continuous phase modulation is proposed. By injecting a tunable liquid crystal between the slotted metasurface and the grating microstructure, the phases of reflected waves can be modulated with different electrically driven methods. Numerical simulations show that the proposed terahertz phase shifter has a phase difference of more than 360° between unbiased and biased states. Furthermore, an array of 35×35 patch elements was designed and fabricated. The performance of the phase shifter provides more than 360° between 379.6 and 391.8 GHz, where the maximum phase shift reaches 422.4° at 385.9 GHz. Moreover, the fully electrically controlled phase modulation of more than 180° is achieved between 382.0 and 394.1 GHz, with a maximum phase modulation of 248.4° at 383.3 GHz. This work may provide a reflective terahertz phase modulator for beam steering.
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30
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Kostyrko K, Hinkel M, Traexler P, Arnold D, Melo-Zainzinger G, Gerlach D, Ruzicka R, Jacob R, Baum A, Lu H, Vellano C, Marszalek J, Heffernan T, Tontsch-Grunt U, Hofmann M. MEKi-based combination strategies for targeting KRAS-driven cancer. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00945-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Yang J, Zhang G, Xu L, Li Y, Deng G, Yin Z, Lu H. Highly efficient and tunable terahertz polarization converter based on double subwavelength metallic gratings infiltrated with liquid crystal. Appl Opt 2022; 61:8265-8272. [PMID: 36256138 DOI: 10.1364/ao.469263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/27/2022] [Indexed: 06/16/2023]
Abstract
In this work, a tunable cross-polarized transmission structure at the terahertz frequency was demonstrated, and the polarization state during modulation was investigated. The proposed structure can significantly enhance the polarization conversion performance of nematic liquid crystals by leveraging the formation of a Fabry-Perot-like resonant cavity that consists of two metal gratings. As a result, the incident waves are continuously reflected in the liquid crystal layer to complete the accumulation of polarization angle changes. From the experimental results acquired, it was concluded that the insertion loss of the cross-polarization transmission was less than 3 dB and the extinction ratio was larger than 28 dB in the frequency range of 388-426 GHz. Our work provides useful insights for improving the efficiency of cross-polarization conversion by enhancing the resonance process in a Fabry-Perot-like resonant cavity and, thus, significantly extending the equivalent optical path.
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32
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Li J, Zhang R, Chen LJ, Qu XY, Lu H, Li JY, Jin YY. [Comparison of etoposide combined with G-CSF and cyclophosphamide combined with G-CSF in mobilization of autologous peripheral hematopoietic stem cells in patients with newly diagnosed multiple myeloma]. Zhonghua Xue Ye Xue Za Zhi 2022; 43:781-784. [PMID: 36709174 PMCID: PMC9613493 DOI: 10.3760/cma.j.issn.0253-2727.2022.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Indexed: 11/26/2022]
Affiliation(s)
- J Li
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing 210029, China
| | - R Zhang
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing 210029, China
| | - L J Chen
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing 210029, China
| | - X Y Qu
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing 210029, China
| | - H Lu
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing 210029, China
| | - J Y Li
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing 210029, China
| | - Y Y Jin
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing 210029, China
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33
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Yang J, Xu L, Zhang G, Li X, Li Y, Hu M, Li J, Lu H, Deng G, Yin Z. Rapid terahertz wave manipulation in a liquid-crystal-integrated metasurface structure. Opt Express 2022; 30:33014-33021. [PMID: 36242351 DOI: 10.1364/oe.470332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 08/15/2022] [Indexed: 06/16/2023]
Abstract
A terahertz phase shifter based on liquid-crystal-integrated metasurface is proposed, which contains a three-slotted array structure and comb grating. The orientation of the liquid crystal molecules can be completely controlled by the direction of the electric field. From the acquired experimental results, it was demonstrated that the phase shift exceeds 300° in the range of 378.6 - 390.8 GHz, whereas the maximum phase shift reaches 374.1° at 383.1 GHz. The molecular reorientation transient process induced by the external electric field in the liquid crystal was measured and analyzed. Based on the molecular reorientation mechanism, which can be divided into three processes, a rapid modulation mechanism was demonstrated. From the performance of the proposed device, an actively controllable phase delay and reflectance with a cycle switching time of approximately 0.3 s was achieved, which is remarkably faster than the usual cycle time that exceeds 8 s. Our work provides useful ideas for improving the response speed of LC-based terahertz devices, which is considered of great significance for several applications, in terms of terahertz reconfigurable devices.
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Xu M, Li S, Li J, Zhang L, Lu H. Fabrication of a bionic compound eye on a curved surface by using a self-assembly technique. Opt Express 2022; 30:30750-30759. [PMID: 36242173 DOI: 10.1364/oe.467657] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 07/26/2022] [Indexed: 06/16/2023]
Abstract
Microlens arrays on curved surfaces are regarded as critical elements of bionic compound eyes (BCEs), which exhibit the comparative advantages of a wide field of view and tracking fast-moving objects. However, the fabrication of a curved microlens array is still challenging. Along these lines, in this work, a straightforward, rapid, and low-cost technique for the fabrication of curved microlens arrays is reported by using the self-assembly technique. A reactive ion etching process treated the surface of the curved polydimethylsiloxane (PDMS) substrate to generate a hydrophobic-hydrophilic pattern. Then, the curved microlens array can be realized by dewetting a liquid glue onto the substrate using the dip-coating method and followed by crosslinking. The proposed BCE structure consists of 2400 microlenses (400 - µm diameter and 440 - µm center distance) arranged in a hexagonal configuration on a curved PDMS surface (34 - mm diameter and 40.4 - mm curvature radius). A field-of-view of 50° was demonstrated, which has potential applications in various fields including imaging sensors, medical diagnostics, machine vision systems, and photodetectors.
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Schwartz S, Patel N, Longmire T, Jayaraman P, Jiang X, Lu H, Baker L, Velez J, Ramesh R, Wavreille AS, Verneret M, Fan H, Hu T, Xu F, Taraszka J, Pelletier M, Miyashiro J, Rinne M, Dranoff G, Sabatos-Peyton C, Cremasco V. Characterization of sabatolimab, a novel immunotherapy with immuno-myeloid activity directed against TIM-3 receptor. Immunother Adv 2022; 2:ltac019. [PMID: 36196369 PMCID: PMC9525012 DOI: 10.1093/immadv/ltac019] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 07/22/2022] [Accepted: 08/02/2022] [Indexed: 11/17/2022] Open
Abstract
Objectives Sabatolimab is a humanized monoclonal antibody (hIgG4, S228P) directed against human T-cell immunoglobulin domain and mucin domain-3 (TIM-3). Herein, we describe the development and characterization of sabatolimab. Methods Sabatolimab was tested for binding to its target TIM-3 and blocking properties. The functional effects of sabatolimab were tested in T-cell killing and myeloid cell cytokine assays. Antibody-mediated cell phagocytosis (ADCP) by sabatolimab was also assessed. Results Sabatolimab was shown to (i) enhance T-cell killing and inflammatory cytokine production by dendritic cells (DCs); (ii) facilitate the phagocytic uptake of TIM-3-expressing target cells; and (iii) block the interaction between TIM-3 and its ligands PtdSer/galectin-9. Conclusion Taken together, our results support both direct anti-leukemic effects and immune-mediated modulation by sabatolimab, reinforcing the notion that sabatolimab represents a novel immunotherapy with immuno-myeloid activity, holding promise for the treatment of myeloid cell neoplasms.
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Affiliation(s)
- Stephanie Schwartz
- Immuno-Oncology and Hematology, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Nidhi Patel
- Immuno-Oncology and Hematology, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Tyler Longmire
- Immuno-Oncology and Hematology, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Pushpa Jayaraman
- Immuno-Oncology and Hematology, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Xiaomo Jiang
- Immuno-Oncology and Hematology, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Hongbo Lu
- Immuno-Oncology and Hematology, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Lisa Baker
- Immuno-Oncology and Hematology, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Janelle Velez
- Immuno-Oncology and Hematology, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Radha Ramesh
- Immuno-Oncology and Hematology, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | | | - Melanie Verneret
- Technical R&D GDD, Novartis Pharma Services AG., Basel, Switzerland
| | - Hong Fan
- Chemical Biology and Therapeutics, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Tiancen Hu
- Chemical Biology and Therapeutics, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Fangmin Xu
- Biotherapeutic and Analytical Technologies, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - John Taraszka
- Biotherapeutic and Analytical Technologies, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Marc Pelletier
- Oncology Translational Research, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Joy Miyashiro
- Immuno-Oncology and Hematology, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Mikael Rinne
- Translational Clinical Oncology, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Glenn Dranoff
- Immuno-Oncology and Hematology, Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | | | - Viviana Cremasco
- Correspondence: Viviana Cremasco, Immuno-Oncology and Hematology, Novartis Institutes for BioMedical Research, 250 Massachusetts Ave, Cambridge, MA 02139, USA.
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Yinghua L, Wen Z, Yu W, Xiaoping S, Xian D, Yangguang G, Wei Z, Lu H. 616 Ultraviolet A mediates the keratinocytes supranuclear melanin cap formation via opsin 3. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zheng J, Lu J, Ma C, Lv T, Lu H. Study of the Fluidized Separation Process of Irregular Coarse-Grained Pulverized Coal Agglomerates Based on Modified Computational Fluid Dynamics-Population Balance Method. ACS Omega 2022; 7:21750-21762. [PMID: 35785318 PMCID: PMC9244914 DOI: 10.1021/acsomega.2c01825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Abstract
In this work, the agglomeration, fragmentation, and separation process of coarse-grained pulverized coal agglomerates (CGPCA) obtained from a power plant were achieved using gas-solid fluidized bed sorting and analyzed through a combination of numerical simulations and actual experiments with CGPCA. To study the polydispersity and irregularity of CGPCA, the CGPCA surface fractal dimension was calculated using fractal dimension combined with scanning electron microscopy. The two-section fractal dimension of the particle size distribution was obtained by fitting the logarithmic particle size distribution of CGPCA. On the basis of the obtained data, the polydisperse particle drag force model, the agglomeration kernel function, and the breakage kernel function were modified. Thus, an irregular polydisperse gas-solid two-phase Eulerian-Eulerian model was constructed to simulate the sorting process of CGPCA in the fluidized bed. The results of the numerical simulation investigation were compared with the experimental results and showed that the simulation data, which considered the two section fractal dimension, was in better agreement with the experimental results. The cumulative logarithmic distribution of CGPCA's size was segmented and fitted. The values of the two section fractals of the agglomerates were determined as D = 1.014 and D = 2.401, respectively. Analysis revealed that the optimal separation efficiency working condition in the simulation process, providing the highest separation efficiency of 54.7%, was generated at air velocity of 1.21 m/s.
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Affiliation(s)
- Jianxiang Zheng
- School
of Energy and Power Engineering, Northeast
Electric Power University, Jilin 132013, China
| | - Jiacheng Lu
- School
of Energy and Power Engineering, Northeast
Electric Power University, Jilin 132013, China
| | - Chenmin Ma
- School
of Energy and Power Engineering, Northeast
Electric Power University, Jilin 132013, China
| | - Tai Lv
- School
of Energy and Power Engineering, Northeast
Electric Power University, Jilin 132013, China
| | - Hongbo Lu
- School
of Energy and Power Engineering, Northeast
Electric Power University, Jilin 132013, China
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38
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Deng G, Hu H, Mo H, Yin Z, Lu H, Hu M, Li J, Yang J. Liquid crystal-based wide-angle metasurface absorber with large frequency tunability and low voltage. Opt Express 2022; 30:22550-22561. [PMID: 36224950 DOI: 10.1364/oe.462307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/29/2022] [Indexed: 06/16/2023]
Abstract
A tunable metasurface absorber (MA) based on polymer network liquid crystal is introduced in this paper. Despite the well-designed unit cell patterns, the proposed MA can achieve both large frequency tunability and wide-angle stability. Compared with traditional liquid crystal-based metasurfaces, the measured results suggest that the recovery time of the proposed structure was reduced by half. By applying an external voltage on the top electrode of the liquid crystal layer from 0 to a saturation voltage of 10 V, the absorption peak of the MA can be tuned from 112.7 GHz to 102.2 GHz, with a maximum frequency tunability of 9.3%, which is significantly higher than other proposed liquid crystal-based metasurfaces. Moreover, the proposed tunable absorber can maintain absorption greater than 90% with incident angles reaching up to 60° for both transverse electric and transverse magnetic polarizations. This design provides an efficient way for developing low-power consumption terahertz devices with large frequency tunability and wide-angle stability.
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Lu H, Zhu C, Chen Y, Ruan Y, Fan L, Chen Q, Wei Q. LncRNA ABHD11-AS1 promotes tumor progression in papillary thyroid carcinoma by regulating EPS15L1/EGFR signaling pathway. Clin Transl Oncol 2022; 24:1124-1133. [PMID: 35098448 DOI: 10.1007/s12094-021-02753-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 12/08/2021] [Indexed: 12/25/2022]
Abstract
OBJECTIVES lncRNA ABHD11 antisense RNA 1 (ABHD11-AS1) acts as an oncogene involved in papillary thyroid carcinoma (PTC) occurrence and progression. ABHD11-AS1 exerts biologic functions by some miRNAs and proteins to regulate multiple targets. Identification of novel mechanism of ABHD11-AS1 could be helpful in therapeutic targeting for PTC treatment. METHODS Differentially expressed lncRNAs were selected from TCGA database. qRT-PCR analysis was applied to examine the expression of ABHD11-AS1 in PTC cell lines and tissues. The relationship of ABHD11-AS1 expression and clinicopathological features was analyzed by Kaplan-Meier analysis. Two PTC cell lines (TPC-1 and KTC-1) were transfected with pcDNA 3.1, pcDNA3.1-ABHD11-AS1, si-NC and si-ABHD11-AS1, respectively, to verify the ABHD11-AS1 oncogene-regulating capacity to promote tumor progression. The cell metastasis and proliferation had been evaluated both in vitro and in vivo. RESULTS High expression of ABHD11-AS1 was found in PTC tissues (P < 0.01), which was significantly correlated with lymph node metastasis (P < 0.05). ABHD11-AS1 overexpression noticeably promoted cell proliferation, migration, and invasion capabilities, which were obviously decreased upon ABHD11-AS1 knockdown. ABHD11-AS1 positively regulated EGFR/EPS15L1 pathway, as EGFR, EPS15L1, STAT3, and p-STAT3 were activated. CONCLUSION ABHD11-AS1 promotes tumor progression in PTC by regulating EPS15L1/EGFR pathway.
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Affiliation(s)
- H Lu
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.,Department of Pathology, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, 318000, China
| | - C Zhu
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, 318000, People's Republic of China
| | - Y Chen
- Department of Pathology, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, 318000, China
| | - Y Ruan
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, 318000, People's Republic of China
| | - L Fan
- Department of Pathology, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, 318000, China
| | - Q Chen
- Precision Medicine Center, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, 318000, People's Republic of China.
| | - Q Wei
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.
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Yang J, Xu L, Zhang G, Mao R, Yin Z, Lu H, Deng G, Li Y. Active continuous control of terahertz wave based on a reflectarray element-liquid crystal-grating electrode hybrid structure. Opt Express 2022; 30:17361-17370. [PMID: 36221561 DOI: 10.1364/oe.452423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 05/02/2022] [Indexed: 06/16/2023]
Abstract
In this work, a new and efficient terahertz reflective phase shifter is proposed. The phase shifter is composed of a metal-dielectric-metal structure with a double dipole patch array, as well as copper grating electrodes immersed within the nematic liquid crystal. More specifically, the employed copper grating electrodes consist of two sets of cross-distributed comb grids, whereas at each set of comb grids can be applied an external bias voltage separately. On top of that, the electric field in the liquid crystal (LC) layer can be continuously changed by enforcing an innovative technique. Consequently, the orientation of the LC molecules was fully controlled by the applied electric field, since the dielectric constant of the LC is controlled by the biased voltage. The phase of the reflective electromagnetic wave can be continuously manipulated. Under this direction, the experimental results show that the phase shift exceeds the value of 180° in the range of 102.5 GHz-104.3 GHz, where the maximum phase shift is 249° at 103 GHz. The proposed work provides a new regulation concept for the implementation of LC-based terahertz devices and the respective applications in the terahertz reconfigurable antennas field.
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Lu H. P 39 MRI-based geometric modeling for transcranial current stimulation in mild cognitive impairment converters. Clin Neurophysiol 2022. [DOI: 10.1016/j.clinph.2022.01.070] [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: 11/03/2022]
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Hu J, Zhang S, Huang S, Zhang J, Lyu M, Lu H, Zhu J. Ligand-mediated CsPbBr xI 3-x/SiO 2quantum dots for red, stable and low-threshold amplify spontaneous emission. Nanotechnology 2022; 33:285201. [PMID: 35385838 DOI: 10.1088/1361-6528/ac64b0] [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] [Received: 01/22/2022] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
The red-emitting perovskite material has received widespread attention as a long-wavelength optical gain media. But the easy phase change in the air limits its practical application. Herein, red CsPbBrxI3-x/SiO2quantum dots (QDs) are prepared by a ligand-mediated hot injection method in which 3-aminopropyl-triethoxysilane (APTES) is used instead of the usual oleylamine (OAm) ligand. Through the hydrolysis of amino groups, a thin silicon layer is formed on the QD surface, improving the stability and without causing the aggregation of QDs. We find that the ratio of I/Br and the size of QDs can be tuned by adjusting the APTES amount. Moreover, this ligand-mediated synthesis effectively passivates the surface defects, so the photoluminescence quantum yield is remarkably improved, and the carrier lifetime is prolonged. The amplified spontaneous emission is achieved under 532 nm nanosecond laser excitation. Compared with the original CsPbBrI2-OAm QD films, the threshold of CsPbBrxI3-x/SiO2QD films is reduced from 403.5 to 98.7μJ cm-2, and the radiation stability is significantly enhanced. Therefore, this material shows great potential in the random laser field.
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Affiliation(s)
- Jian Hu
- Special Display and Imaging Technology Innovation Center of Anhui Province, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, Academy of Opto-Electric Technology, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Sijian Zhang
- Special Display and Imaging Technology Innovation Center of Anhui Province, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, Academy of Opto-Electric Technology, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Shuo Huang
- Special Display and Imaging Technology Innovation Center of Anhui Province, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, Academy of Opto-Electric Technology, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Junxi Zhang
- Special Display and Imaging Technology Innovation Center of Anhui Province, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, Academy of Opto-Electric Technology, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Mei Lyu
- Special Display and Imaging Technology Innovation Center of Anhui Province, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, Academy of Opto-Electric Technology, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Hongbo Lu
- Special Display and Imaging Technology Innovation Center of Anhui Province, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, Academy of Opto-Electric Technology, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, People's Republic of China
| | - Jun Zhu
- Special Display and Imaging Technology Innovation Center of Anhui Province, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, Academy of Opto-Electric Technology, School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, People's Republic of China
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Shi J, Ma C, Ren M, Xu M, Zhu J, Qiu L, Ding Y, Zhang J, Lu H. Stable and tunable single-mode lasers based on cholesteric liquid crystal microdroplets. Appl Opt 2022; 61:2937-2942. [PMID: 35471268 DOI: 10.1364/ao.456377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 03/12/2022] [Indexed: 06/14/2023]
Abstract
Although many studies on cholesteric liquid crystal (CLC) microdroplet single-mode lasers are available, it has been shown that the stability and tunability of such microdroplets are difficult to achieve simultaneously. In this paper, a new, to the best of our knowledge, method is proposed for the mass and rapid preparation of stable and tunable monodisperse CLC microdroplet single-mode lasers. This is based on the formation of polymer networks on the surface of the microdroplet via interfacial polymerization and a disruption of the orderliness of the polymer networks by increasing the temperature during polymerization, which results in a single pitch inside the microdroplets. This approach enables CLC microdroplet single-mode lasers to achieve improved environmental robustness, while maintaining the same temperature tunability as the unpolymerized sample. Our method has promising future applications in integrated optics, flexible devices, and sensors.
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Cheng L, Fu K, Gao N, Cai JH, Xu WJ, Liu KY, Lu H, Lyu XQ, Wang L, He W. [Clinicopathological characteristics and differential diagnosis of 6 cases of congenital granular cell tumor]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:410-414. [PMID: 35368168 DOI: 10.3760/cma.j.cn112144-20210811-00361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
To provide references for the diagnosis and treatment of congenital granular cell tumor (CGCT), by comprehensive analysis of the clinical data, histopathological and immunohistochemical results. Patients with CGCT were involede, from March 2015 to November 2020, at the Department of Oral and Maxillofacial Surgery of the First Affiliated Hospital of Zhengzhou University. A total of 6 children, aged 3-16 days, 1 male and 5 female, 5 maxillary and 1 mandibular, with maximum tumor diameter of 6-70 mm, were included. The lesions of CGCT were single and connected to the alveolar ridge by a pedicle. The surface of the tumor was covered with a vascular network, and two cases had ulcers on the surface of the tumor. All 6 cases had the tumor removed surgically and there was no recurrence or metastasis in the follow-up visit. Although CGCT is rare, it is a benign tumor and generally does not recur or metastasize after surgery, and has a good prognosis. The prenatal imaging, clinical manifestations after delivery, pathological characteristics and immunohistochemical analyses may provide reference for early diagnosis and treatment of CGCT.
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Affiliation(s)
- L Cheng
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - K Fu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - N Gao
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J H Cai
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W J Xu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - K Y Liu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - H Lu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X Q Lyu
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - L Wang
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W He
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Xu M, Xue Y, Li S, Zhang L, Lu H. Liquid crystal microlens array with positive and negative focal lengths based on a patterned electrode. Appl Opt 2022; 61:2721-2726. [PMID: 35471343 DOI: 10.1364/ao.452223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 02/25/2022] [Indexed: 06/14/2023]
Abstract
A liquid crystal microlens array (LCMLA) with positive and negative focal lengths based on a ring-array patterned electrodes is demonstrated. By carefully designing patterned electrodes with a circular electrode array area and outer ring electrode region area, the switching of the positive and negative lens effect can be easily achieved in a single cell. A positive lens effect appeared when the voltage was applied to the outer ring electrode region and the top substrate. The focal length changed from infinity to 1 mm as the voltage varied from 0 to 3Vrms. A negative lens effect occurred when the voltage was applied to the circular electrode array and the top substrate. The focal length varied from infinity to -1mm when the voltage changed from 0 to 2Vrms. The imaging properties of the LCMLA at different voltages are evaluated. Our LCMLA, with simple structure, low driving voltage, and good stability, has potential applications in optical communication, imaging processing, and displays.
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Lu H, Huang P, Wu T, Chen C, Shi J, Xu M, Qiu L, Ding Y, Zhu J. PDLC with controllable microstructure using wavelength-selective two-stage polymerization. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124641] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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47
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Scarlata MJ, Keeley RJ, Carmack SA, Tsai PJ, Vendruscolo JCM, Lu H, Koob GF, Vendruscolo LF, Stein EA. Cingulate circuits are associated with escalation of heroin use and naloxone-induced increases in heroin self-administration. Addict Neurosci 2022; 1:100002. [PMID: 37323812 PMCID: PMC10270679 DOI: 10.1016/j.addicn.2021.100002] [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: 06/17/2023]
Abstract
Opioid use disorder (OUD) is defined as a compulsion to seek and take opioids, loss of control over intake and the development of a negative emotional state when access to opioids is denied. Using functional magnetic resonance imaging (fMRI) data in a rat model of OUD, we demonstrate that the escalation of heroin self-administration (SA) and the increased heroin SA following an injection of an opioid receptor antagonist (naloxone) are associated with changes in distinct brain circuits, centered on the cingulate cortex (Cg). Here, SA escalation score was negatively associated with changes in resting state functional connectivity (rsFC) between the Cg and the dorsal striatum. Conversely, increased heroin SA following naloxone injection, was associated with increased connectivity between the Cg and the extended amygdala and hypothalamus. Naloxone-induced increased SA was also positively associated with changes in the amplitude of low frequency fluctuations within the Cg, a measure of spontaneous neuronal activity. Characterizing the distinct brain circuit and behavior changes associated with different facets of addiction increases our understanding of OUD and may provide insight into addiction prevention and treatment.
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Affiliation(s)
- MJ Scarlata
- Neuroimaging Research Branch, National Institute on Drug Abuse, United States of America
| | - RJ Keeley
- Neuroimaging Research Branch, National Institute on Drug Abuse, United States of America
| | - SA Carmack
- Integrative Neuroscience Research Branch, National Institute on Drug Abuse (NIDA), Intramural Research Program, NIH, Baltimore, MD, United States of America
| | - P-J Tsai
- Neuroimaging Research Branch, National Institute on Drug Abuse, United States of America
| | - JCM Vendruscolo
- Integrative Neuroscience Research Branch, National Institute on Drug Abuse (NIDA), Intramural Research Program, NIH, Baltimore, MD, United States of America
| | - H Lu
- Neuroimaging Research Branch, National Institute on Drug Abuse, United States of America
| | - GF Koob
- Integrative Neuroscience Research Branch, National Institute on Drug Abuse (NIDA), Intramural Research Program, NIH, Baltimore, MD, United States of America
| | - LF Vendruscolo
- Integrative Neuroscience Research Branch, National Institute on Drug Abuse (NIDA), Intramural Research Program, NIH, Baltimore, MD, United States of America
| | - EA Stein
- Neuroimaging Research Branch, National Institute on Drug Abuse, United States of America
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Xu M, Liu Y, Yuan Y, Lu H, Qiu L. Variable-focus liquid lens based on electrically responsive fluid. Opt Lett 2022; 47:509-512. [PMID: 35103661 DOI: 10.1364/ol.447182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 12/15/2021] [Indexed: 06/14/2023]
Abstract
In this work, an adaptive liquid lens using a novel transparent electrically responsive fluid, dibutyl adipate (DBA), is demonstrated. The DBA liquid lens with a hemispherical plano-convex shape can change its curvature according to the application of various input voltages. More specifically, when an external direct current (DC) electric field is applied to the DBA liquid, the charges that are injected from the cathode move along with the DBA molecules toward the anode and accumulate on the surface of the anode. When the DC electric field is removed, the shape of the DBA liquid is recovered to its original state. This electrostatic force induces the deformation of the DBA liquid lens within a concentric annular anode electrode. In addition, the focal length of our system is increased from a value of approximately 7.5 mm to 13.1 mm when the voltage is changed from 0 to 100 V. Interestingly, the resolution of our DBA liquid lens can reach a value of ∼28.5 lp/mm. The proposed DBA liquid lens exhibits high optical transmittance (∼95%), good thermal stability (20-100°C), simple structure, and an excellent imaging property, which implies that the DBA liquid is a promising candidate for fabricating novel adaptive liquid lenses.
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Liu YQ, Gong K, Li XQ, Wen XY, An ZH, Cai C, Chang Z, Chen G, Chen C, Du YY, Gao M, Gao R, Guo DY, He JJ, Hou DJ, Li YG, Li CY, Li G, Li L, Li XF, Li MS, Liang XH, Liu XJ, Lu FJ, Lu H, Meng B, Peng WX, Shi F, Sun XL, Wang H, Wang JZ, Wang YS, Wang HZ, Wen X, Xiao S, Xiong SL, Xu YB, Xu YP, Yang S, Yang JW, Yi QB, Zhang F, Zhang DL, Zhang SN, Zhang CY, Zhang CM, Zhang F, Zhao XY, Zhao Y, Zhou X. The data acquisition algorithm designed for the SiPM-based detectors of GECAM satellite. Radiat Detect Technol Methods 2022. [DOI: 10.1007/s41605-021-00311-3] [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: 11/30/2022]
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Wu W, Wang S, Zhang H, Guo W, Lu H, Xu H, Zhan R, Fidan O, Sun L. Biosynthesis of Novel Naphthoquinone Derivatives in the Commonly-used Chassis Cells Saccharomyces cerevisiae and Escherichia coli. APPL BIOCHEM MICRO+ 2021. [PMCID: PMC8700708 DOI: 10.1134/s0003683821100124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Naphthoquinones harboring 1,4-naphthoquinone pharmacophore are considered as privileged structures in medicinal chemistry. In pharmaceutical industry and fundamental research, polyketide naphthoquinones were widely produced by heterologous expression of polyketide synthases in microbial chassis cells, such as Saccharomyces cerevisiae and Escherichia coli. Nevertheless, these cell factories still remain, to a great degree, black boxes that often exceed engineers’ expectations. In this work, the biotransformation of juglone or 1,4-naphthoquinone was conducted to generate novel derivatives and it was revealed that these two naphthoquinones can indeed be modified by the chassis cells. Seventeen derivatives, including 6 novel compounds, were isolated and their structural characterizations indicated the attachment of certain metabolites of chassis cells to naphthoquinones. Some of these biosynthesized derivatives were reported as potent antimicrobial agents with reduced cytotoxic activities. Additionally, molecular docking as simple and quick in silico approach was performed to screen the biosynthesized compounds for their potential antiviral activity. It was found that compound 11 and 17 showed the most promising binding affinities against Nsp9 of SARS-CoV-2, demonstrating their potential antiviral activities. Overall, this work provides a new approach to generate novel molecules in the commonly used chassis cells, which would expand the chemical diversity for the drug development pipeline. It also reveals a novel insight into the potential of the catalytic power of the most widely used chassis cells.
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Affiliation(s)
- W. Wu
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, 510006 Guangzhou, P. R. China
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine), Ministry of Education, 510006 Guangzhou, P. R. China
- Joint Laboratory of National Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, 510006 Guangzhou, P. R. China
| | - S. Wang
- Suzhou Institute of Drug Control, 215000 Suzhou, P. R. China
| | - H. Zhang
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, 510006 Guangzhou, P. R. China
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine), Ministry of Education, 510006 Guangzhou, P. R. China
- Joint Laboratory of National Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, 510006 Guangzhou, P. R. China
| | - W. Guo
- Artemisinin Research Center, Guangzhou University of Chinese Medicine, 510405 Guangzhou, P. R. China
| | - H. Lu
- Suzhou Institute of Drug Control, 215000 Suzhou, P. R. China
| | - H. Xu
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, 510006 Guangzhou, P. R. China
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine), Ministry of Education, 510006 Guangzhou, P. R. China
- Joint Laboratory of National Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, 510006 Guangzhou, P. R. China
| | - R. Zhan
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, 510006 Guangzhou, P. R. China
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine), Ministry of Education, 510006 Guangzhou, P. R. China
- Joint Laboratory of National Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, 510006 Guangzhou, P. R. China
| | - O. Fidan
- Department of Bioengineering, Faculty of Life and Natural Sciences, Abdullah Gül University, 38080 Kayseri, Turkey
| | - L. Sun
- Research Center of Chinese Herbal Resource Science and Engineering, Guangzhou University of Chinese Medicine, 510006 Guangzhou, P. R. China
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine), Ministry of Education, 510006 Guangzhou, P. R. China
- Joint Laboratory of National Engineering Research Center for the Pharmaceutics of Traditional Chinese Medicines, 510006 Guangzhou, P. R. China
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