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Ma B, Khan KS, Xu T, Xeque Amada J, Guo Z, Huang Y, Yan Y, Lam H, Cheng ASL, Ng BWL. Targeted Protein O-GlcNAcylation Using Bifunctional Small Molecules. J Am Chem Soc 2024; 146:9779-9789. [PMID: 38561350 PMCID: PMC11009946 DOI: 10.1021/jacs.3c14380] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/13/2024] [Accepted: 03/13/2024] [Indexed: 04/04/2024]
Abstract
Protein O-linked β-N-acetylglucosamine modification (O-GlcNAcylation) plays a crucial role in regulating essential cellular processes. The disruption of the homeostasis of O-GlcNAcylation has been linked to various human diseases, including cancer, diabetes, and neurodegeneration. However, there are limited chemical tools for protein- and site-specific O-GlcNAc modification, rendering the precise study of the O-GlcNAcylation challenging. To address this, we have developed heterobifunctional small molecules, named O-GlcNAcylation TArgeting Chimeras (OGTACs), which enable protein-specific O-GlcNAcylation in living cells. OGTACs promote O-GlcNAcylation of proteins such as BRD4, CK2α, and EZH2 in cellulo by recruiting FKBP12F36V-fused O-GlcNAc transferase (OGT), with temporal, magnitude, and reversible control. Overall, the OGTACs represent a promising approach for inducing protein-specific O-GlcNAcylation, thus enabling functional dissection and offering new directions for O-GlcNAc-targeting therapeutic development.
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Affiliation(s)
- Bowen Ma
- School
of Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Sha Tin, Hong Kong
| | - Khadija Shahed Khan
- School
of Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Sha Tin, Hong Kong
- School
of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Sha Tin, Hong Kong
| | - Tongyang Xu
- School
of Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Sha Tin, Hong Kong
| | - Josefina Xeque Amada
- School
of Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Sha Tin, Hong Kong
| | - Zhihao Guo
- School
of Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Sha Tin, Hong Kong
| | - Yunpeng Huang
- School
of Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Sha Tin, Hong Kong
| | - Yu Yan
- School
of Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Sha Tin, Hong Kong
| | - Henry Lam
- Department
of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Sai Kung, Hong Kong
| | - Alfred Sze-Lok Cheng
- School
of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Sha Tin, Hong Kong
| | - Billy Wai-Lung Ng
- School
of Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Sha Tin, Hong Kong
- Li Ka
Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Sha Tin, Hong
Kong
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Morningstar MD, Timme NM, Ma B, Cornwell E, Galbari T, Lapish CC. Proactive Versus Reactive Control Strategies Differentially Mediate Alcohol Drinking in Male Wistars and P Rats. eNeuro 2024; 11:ENEURO.0385-23.2024. [PMID: 38423790 PMCID: PMC10972740 DOI: 10.1523/eneuro.0385-23.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/13/2023] [Accepted: 01/24/2024] [Indexed: 03/02/2024] Open
Abstract
Problematic alcohol consumption is associated with deficits in decision-making and alterations in prefrontal cortex neural activity likely contribute. We hypothesized that the differences in cognitive control would be evident between male Wistars and a model of genetic risk: alcohol-preferring P rats. Cognitive control is split into proactive and reactive components. Proactive control maintains goal-directed behavior independent of a stimulus, whereas reactive control elicits goal-directed behavior at the time of a stimulus. We hypothesized that Wistars would show proactive control over alcohol seeking whereas P rats would show reactive control over alcohol seeking. Neural activity was recorded from the prefrontal cortex during an alcohol seeking task with two session types. On congruent sessions, the conditioned stimulus (CS+) was on the same side as alcohol access. Incongruent sessions presented alcohol opposite the CS+. Wistars, but not P rats, made more incorrect approaches during incongruent sessions, suggesting that Wistars utilized the previously learned rule. This motivated the hypothesis that neural activity reflecting proactive control would be observable in Wistars but not P rats. While P rats showed differences in neural activity at times of alcohol access, Wistars showed differences prior to approaching the sipper. These results support our hypothesis that Wistars are more likely to engage in proactive cognitive control strategies whereas P rats are more likely to engage in reactive cognitive control strategies. Although P rats were bred to prefer alcohol, the differences in cognitive control may reflect a sequela of behaviors that mirror those in humans at risk for an AUD.
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Affiliation(s)
- M D Morningstar
- Department of Psychology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202
| | - N M Timme
- Department of Psychology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202
| | - B Ma
- Department of Psychology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202
| | - E Cornwell
- Department of Psychology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202
| | - T Galbari
- Department of Psychology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202
| | - C C Lapish
- Department of Psychology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202
- Department of Anatomy, Cell Biology, and Physiology, Stark Neurosciences, Indiana University School of Medicine, Indianapolis, Indiana 46202
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Liu J, Sun M, Fang K, Wang J, Ma B, Song L, Liu T, Tang M, Wang K, Xia Y. Effect of Different Liver Resection Modalities on the Prognosis of Patients with Hepatocellular Carcinoma on the Left Lateral Lobe [Response to Letter]. J Hepatocell Carcinoma 2024; 11:347-348. [PMID: 38375402 PMCID: PMC10875164 DOI: 10.2147/jhc.s461183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 02/21/2024] Open
Affiliation(s)
- Jianwei Liu
- Department of Hepatic Surgery II, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Minmin Sun
- Department of Hepatic Surgery I, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Kunpeng Fang
- Department of Special Treatment I, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Jie Wang
- Department of Hepatic Surgery II, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Bowen Ma
- Department of Hepatic Surgery II, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Li Song
- Department of Hepatic Surgery II, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Ting Liu
- Department of Hepatic Surgery II, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Ming Tang
- Department of Hepatic Surgery IV, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Kui Wang
- Department of Hepatic Surgery II, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Yong Xia
- Department of Hepatic Surgery IV, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
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4
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Zhang J, Ma B, Zou W. High-speed parallel processing with photonic feedforward reservoir computing. Opt Express 2023; 31:43920-43933. [PMID: 38178476 DOI: 10.1364/oe.505520] [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: 09/08/2023] [Accepted: 11/28/2023] [Indexed: 01/06/2024]
Abstract
High-speed photonic reservoir computing (RC) has garnered significant interest in neuromorphic computing. However, existing reservoir layer (RL) architectures mostly rely on time-delayed feedback loops and use analog-to-digital converters for offline digital processing in the implementation of the readout layer, posing inherent limitations on their speed and capabilities. In this paper, we propose a non-feedback method that utilizes the pulse broadening effect induced by optical dispersion to implement a RL. By combining the multiplication of the modulator with the summation of the pulse temporal integration of the distributed feedback-laser diode, we successfully achieve the linear regression operation of the optoelectronic analog readout layer. Our proposed fully-analog feed-forward photonic RC (FF-PhRC) system is experimentally demonstrated to be effective in chaotic signal prediction, spoken digit recognition, and MNIST classification. Additionally, using wavelength-division multiplexing, our system manages to complete parallel tasks and improve processing capability up to 10 GHz per wavelength. The present work highlights the potential of FF-PhRC as a high-performance, high-speed computing tool for real-time neuromorphic computing.
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Qin R, Qian N, Zhou D, Ma B, Zou W. Decoupling and one-time elimination of the timing skew in a time-demultiplexing photonic analog-to-digital converter for high-resolution wideband signal acquisition. Opt Lett 2023; 48:5324-5327. [PMID: 37831858 DOI: 10.1364/ol.500228] [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: 07/10/2023] [Accepted: 09/05/2023] [Indexed: 10/15/2023]
Abstract
Temporal alignment between the demultiplexing signal and sampled signal for complex wideband signals greatly increases the difficulty of designing high-speed and high-resolution photonic analog-to-digital converters (PADCs). We present a vector description to decouple the timing skew from the phase frequency response in time-demultiplexing PADC. We demonstrate that the calibration can be optically implemented with true time delay effects and the broadband input can be one-time calibrated through several single-frequency signals. For verification, we configure out a 40 GSa/s PADC with eight-interleaved sub-channels. The timing skew-induced spurs across the whole Nyquist band are effectively suppressed, making the PADC acquire a wideband signal with 16 GHz instantaneous bandwidth. The spurious-free dynamic range (SFDR) is enhanced to ∼55 dB, and the effective number of bits (ENOB) is improved from ∼5.5 bits to ∼8 bits within 20 GHz. It is nearly 1 bit better than the recently reported time-demultiplexing PADC under the comparable input frequencies.
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6
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Liu B, Xu S, Ma B, Yi S, Zou W. Low-threshold all-optical nonlinear activation function based on injection locking in distributed feedback laser diodes. Opt Lett 2023; 48:3889-3892. [PMID: 37527075 DOI: 10.1364/ol.492578] [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: 04/06/2023] [Accepted: 06/19/2023] [Indexed: 08/03/2023]
Abstract
We experimentally demonstrate an all-optical nonlinear activation unit based on the injection-locking effect of distributed feedback laser diodes (DFB-LDs). The nonlinear carrier dynamics in the unit generates a low-threshold nonlinear activation function with optimized operating conditions. The unit can operate at a low threshold of -15.86 dBm and a high speed of 1 GHz, making it competitive among existing optical nonlinear activation approaches. We apply the unit to a neural network task of solving the second-order ordinary differential equation. The fitting error is as low as 0.0034, verifying the feasibility of our optical nonlinear activation approach. Given that the large-scale fan-out of optical neural networks (ONNs) will significantly reduce the optical power in one channel, our low-threshold scheme is suitable for the development of high-throughput ONNs.
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Liu J, Sun M, Fang K, Wang J, Ma B, Song L, Liu T, Tang M, Wang K, Xia Y. Effect of Different Liver Resection Modalities on the Prognosis of Patients with Hepatocellular Carcinoma on the Left Lateral Lobe. J Hepatocell Carcinoma 2023; 10:997-1007. [PMID: 37405320 PMCID: PMC10315153 DOI: 10.2147/jhc.s412554] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/20/2023] [Indexed: 07/06/2023] Open
Abstract
Purpose To investigate the effect of different liver resection modalities on the prognosis of left lateral lobe hepatocellular carcinoma (HCC) patients. Methods 315 patients with HCC on left lateral lobe were divided into open left lateral lobectomy (LLL) group (n=249) and open left hepatectomy (LH) group (n=66). The differences in long-term prognosis between two groups were compared. Results The results showed that narrow resection margin (Hazard Ratio (HR):1.457, 95% Confidential Interval (CI): 1.038-2.047; HR:1.415, 95% CI: 1.061-1.887), tumor diameter > 5 cm (1.645, 1.161-2.330; 1.488, 1.123-1.971), multiple tumors (2.021, 1.330-3.073; 1.987, 1.380-2.861), and microvascular invasion (MVI) (1.753, 1.253-2.452; 1.438, 1.087-1.902) are independent risk factors for overall survival (OS) and tumor recurrence (TR), while liver resection modality is not. After propensity score matching, liver resection modality is not an independent risk factor for OS and TR. Further analysis revealed that wide resection margins were achieved in all patients in the LH group but only 59.0% patients in the LLL group. The OS and TR rates were not significantly different between wide patients with resection margins in LLL group and LH group (P=0.766 and 0.919, respectively), but significantly different between patients with narrow resection margins in LLL group and LH group (P=0.012 and 0.017, respectively). Conclusion Liver resection modality is not an independent risk factor for the prognosis of patients with HCC on the left lateral lobe as long as wide margins are obtained. Nevertheless, with narrow margins, patients who underwent LH rather than LLL did better.
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Affiliation(s)
- Jianwei Liu
- Department of Hepatic Surgery II, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Minmin Sun
- Department of Hepatic Surgery I, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Kunpeng Fang
- Department of Special Treatment I, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Jie Wang
- Department of Hepatic Surgery II, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Bowen Ma
- Department of Hepatic Surgery II, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Li Song
- Department of Hepatic Surgery II, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Ting Liu
- Department of Hepatic Surgery II, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Ming Tang
- Department of Hepatic Surgery IV, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Kui Wang
- Department of Hepatic Surgery II, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
| | - Yong Xia
- Department of Hepatic Surgery IV, Third Affiliated Hospital of Naval Medical University (Eastern Hepatobiliary Surgery Hospital), Shanghai, 200438, People’s Republic of China
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8
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Gao C, Ma B, Liu W, Zhu L. The state and consideration for skin test of β-lactam antibiotics in pediatrics. Front Cell Infect Microbiol 2023; 13:1147976. [PMID: 37396306 PMCID: PMC10308085 DOI: 10.3389/fcimb.2023.1147976] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 05/23/2023] [Indexed: 07/04/2023] Open
Abstract
β-lactam antibiotics are the most frequently used drugs and the most common drugs that cause allergic reactions in pediatrics. The occurrence of some allergic reactions can be predicted by skin testing, especially severe adverse reactions such as anaphylactic shock. Thus, penicillin and cephalosporin skin tests are widely used to predict allergic reactions before medication in pediatrics. However, false-positive results from skin tests were more often encountered in pediatrics than in adults. In fact, many children labeled as allergic to β-lactam are not allergic to the antibiotic, leading to the use of alternative antibiotics, which are less effective and more toxic, and the increase of antibiotic resistance. There has been controversy over whether β-lactam antibiotics should be tested for skin allergies before application in children. Based on the great controversy in the implementation of β-lactam antibiotic skin tests, especially the controversial cephalosporin skin tests in pediatrics, the mechanism and reasons of anaphylaxis to β-lactam antibiotics, the significance of β-lactam antibiotic skin tests, the current state of β-lactam antibiotic skin tests at home and abroad, and the problems of domestic and international skin tests were analyzed to determine a unified standard of β-lactam antibiotic skin tests in pediatrics to prevent and decrease adverse drug reactions, avoid waste of drugs, and a large amount of manpower and material resource consumption.
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Affiliation(s)
- Chunhui Gao
- Department of Pharmacy, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Tianjin, China
| | - Bowen Ma
- Department of Pharmacy, Cangzhou People's Hospital, Cangzhou, Hebei, China
| | - Wei Liu
- Tianjin Children's Hospital (Children's Hospital of Tianjin University), Tianjin, China
| | - Liqin Zhu
- Department of Pharmacy, Tianjin First Central Hospital, Tianjin, China
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Morningstar M, Timme N, Ma B, Cornwell E, Galbari T, Lapish C. Proactive Versus Reactive Control Strategies Differentially Mediate Alcohol Drinking in Wistar and P rats. bioRxiv 2023:2023.06.08.544260. [PMID: 37333222 PMCID: PMC10274887 DOI: 10.1101/2023.06.08.544260] [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] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
Problematic alcohol consumption is associated with deficits in decision-making, and alterations in prefrontal cortex neural activity likely contributes. We hypothesized that differences in cognitive control would be evident between male Wistar rats and a model for genetic risk for alcohol use disorder (alcohol-preferring P rats). Cognitive control can be split into proactive and reactive components. Proactive control maintains goal-directed behavior independent of a stimulus whereas reactive control elicits goal-directed behavior at the time of a stimulus. We hypothesized that Wistars would show proactive control over alcohol-seeking whereas P rats would show reactive control over alcohol-seeking. Neural ensembles were recorded from prefrontal cortex during an alcohol seeking task that utilized two session types. On congruent sessions the CS+ was on the same side as alcohol access. Incongruent sessions presented alcohol opposite the CS+. Wistars, but not P rats, exhibited an increase in incorrect approaches during incongruent sessions, suggesting that Wistars utilized the previously learned task-rule. This motivated the hypothesis that ensemble activity reflecting proactive control would be observable in Wistars but not P rats. While P rats showed differences in neural activity at times relevant for alcohol delivery, Wistars showed differences prior to approaching the sipper. These results support our hypothesis that Wistars are more likely to engage proactive cognitive-control strategies whereas P rats are more likely to engage reactive cognitive control strategies. Although P rats were bred to prefer alcohol, differences in cognitive control may reflect a sequela of behaviors that mirror those in humans at risk for an AUD.
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Affiliation(s)
- M.D. Morningstar
- Indiana University-Purdue University Indianapolis. Department of Psychology. Indianapolis, IN, 46202. United States of America
| | - N.M. Timme
- Indiana University-Purdue University Indianapolis. Department of Psychology. Indianapolis, IN, 46202. United States of America
| | - B. Ma
- Indiana University-Purdue University Indianapolis. Department of Psychology. Indianapolis, IN, 46202. United States of America
| | - E. Cornwell
- Indiana University-Purdue University Indianapolis. Department of Psychology. Indianapolis, IN, 46202. United States of America
| | - T. Galbari
- Indiana University-Purdue University Indianapolis. Department of Psychology. Indianapolis, IN, 46202. United States of America
| | - C.C. Lapish
- Indiana University-Purdue University Indianapolis. Department of Psychology. Indianapolis, IN, 46202. United States of America
- Indiana University School of Medicine. Stark Neurosciences. Department of Anatomy, Cell Biology, and Physiology. Indianapolis, IN, 46202. United States of America
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Ma B, Yan ZH, Li TG, Nie F. Prenatal diagnosis of congenital left ventricular diverticulum. Ultrasound Obstet Gynecol 2023; 61:777-779. [PMID: 36484455 DOI: 10.1002/uog.26137] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/05/2022] [Accepted: 11/28/2022] [Indexed: 06/03/2023]
Affiliation(s)
- B Ma
- Ultrasound Medicine Center, Lanzhou University Second Hospital, Lanzhou, Gansu Province, China
- Ultrasound Medicine Center, Gansu Provincial Maternity and Childcare Hospital, Lanzhou, Gansu Province, China
| | - Z-H Yan
- Ultrasound Medicine Center, Gansu Provincial Maternity and Childcare Hospital, Lanzhou, Gansu Province, China
| | - T-G Li
- Ultrasound Medicine Center, Gansu Provincial Maternity and Childcare Hospital, Lanzhou, Gansu Province, China
| | - F Nie
- Ultrasound Medicine Center, Lanzhou University Second Hospital, Lanzhou, Gansu Province, China
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Zhao Y, Ma B, Zhang J, Zou W. Real-time signal acquisition based on optical excitable response by pre-designing single-tone preamble waveform. Opt Lett 2023; 48:2062-2065. [PMID: 37058642 DOI: 10.1364/ol.488826] [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: 02/28/2023] [Accepted: 03/12/2023] [Indexed: 06/19/2023]
Abstract
Real-time acquisition of target signals is preferred for mobile communication systems. However, under the requirement of ultra-low latency for next-generation communication, traditional acquisition methods need to temporally locate the target signal from a large amount of raw data with correlation-based computing, introducing extra latency. We propose a real-time signal acquisition method based on an optical excitable response (OER) by pre-designing a single-tone preamble waveform. The preamble waveform is designed to be within the amplitude and bandwidth of the target signal, so no extra transceiver is required. The OER generates a corresponding pulse to the preamble waveform in the analog domain, which simultaneously triggers an analog-to-digital converter (ADC) to acquire target signals. The dependence of OER pulse on the preamble waveform parameter is studied, leading to a pre-design of the preamble waveform for an optimal OER. In the experiment, we demonstrate a millimeter-wave (26.5-GHz) transceiver system with target signals of orthogonal frequency division multiplexing (OFDM) format. Experimental results show that the response time is less than 4 ns, which is far lower than the ms-level response time of traditional all-digital time-synchronous acquisition methods.
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12
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Rudin CM, Cervantes A, Dowlati A, Besse B, Ma B, Costa DB, Schmid P, Heist R, Villaflor VM, Spahn J, Li S, Cha E, Riely GJ, Gettinger S. Safety and clinical activity of atezolizumab plus erlotinib in patients with non-small-cell lung cancer. ESMO Open 2023; 8:101160. [PMID: 36871392 PMCID: PMC10163154 DOI: 10.1016/j.esmoop.2023.101160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 02/06/2023] [Indexed: 03/06/2023] Open
Abstract
BACKGROUND Acquired resistance limits long-term epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) efficacy in patients with EGFR mutation-positive non-small-cell lung cancer (NSCLC) in whom anti-programmed death-ligand 1 (PD-L1) efficacy is also limited. We hypothesized that combining atezolizumab with erlotinib could enhance antitumor immunity and extend efficacy in these patients. PATIENTS AND METHODS This open-label phase Ib trial was conducted in adults aged ≥18 years who had advanced, unresectable NSCLC. Stage 1 (safety evaluation) enrolled EGFR TKI-naive patients regardless of EGFR status. Stage 2 (expansion) enrolled patients with EGFR-mutant NSCLC treated with ≤1 prior non-EGFR TKI therapy. Patients received 150 mg erlotinib orally once daily. After a 7-day erlotinib run-in, atezolizumab 1200 mg was administered intravenously every 3 weeks. The primary endpoint was the safety and tolerability of the combination in all patients; secondary endpoints included antitumor activity per RECIST 1.1 in stage 2 patients. RESULTS At the data cut-off on 7 May 2020, 28 patients (8 in stage 1, 20 in stage 2) were assessable for safety. No dose-limiting toxicities or grade 4 or 5 treatment-related adverse events occurred. Grade 3 treatment-related adverse events occurred in 46% of patients; the most common were increased alanine aminotransferase, diarrhea, pyrexia, and rash (each in 7% of patients). Serious adverse events occurred in 50% of patients. Pneumonitis (grade 1) was reported in a single patient (4%). The objective response rate was 75% [95% confidence interval (CI) 50.9% to 91.3%]), median response duration was 18.9 months (95% CI 9.5-40.5 months), median progression-free survival was 15.4 months (95% CI 8.4-39.0 months), and median overall survival was not estimable (NE) (95% CI 34.6-NE). CONCLUSIONS Atezolizumab combined with erlotinib demonstrated a tolerable safety profile and encouraging, durable clinical activity in patients with advanced EGFR mutation-positive NSCLC.
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Affiliation(s)
- C M Rudin
- Memorial Sloan Kettering Cancer Center, New York, USA.
| | | | - A Dowlati
- University Hospitals Case Medical Center, Cleveland, USA
| | - B Besse
- Gustave Roussy, Villejuif; University of Paris-Sud, Orsay, France
| | - B Ma
- Phase I Clinical Trial Center, Chinese University of Hong Kong, Hong Kong, China
| | - D B Costa
- Beth Israel Deaconess Medical Center, Boston, USA
| | - P Schmid
- Barts Cancer Institute, London, UK
| | - R Heist
- Massachusetts General Hospital, Boston
| | | | - J Spahn
- Genentech, Inc, South San Francisco
| | - S Li
- Genentech, Inc, South San Francisco
| | - E Cha
- Genentech, Inc, South San Francisco
| | - G J Riely
- Memorial Sloan Kettering Cancer Center, New York, USA
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Yuan H, Yao B, Li JT, Zhu WL, Ren DL, Wang H, Ma TH, Chen SQ, Wu JJ, Tao YR, Ye L, Wang ZY, Qu H, Ma B, Zhong WW, Wang DJ, Qiu JG. [Observational study on perioperative outcomes of pelvic exenteration]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:260-267. [PMID: 36925126 DOI: 10.3760/cma.j.cn441530-20221024-00428] [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: 03/18/2023]
Abstract
Objective: To investigate the surgical indications and perioperative clinical outcomes of pelvic exenteration (PE) for locally advanced, recurrent pelvic malignancies and complex pelvic fistulas. Methods: This was a descriptive study.The indications for performing PE were: (1) locally advanced, recurrent pelvic malignancy or complex pelvic fistula diagnosed preoperatively by imaging and pathological examination of a biopsy; (2)preoperative agreement by a multi-disciplinary team that non-surgical and conventional surgical treatment had failed and PE was required; and (3) findings on intraoperative exploration confirming this conclusion.Contraindications to this surgical procedure comprised cardiac and respiratory dysfunction, poor nutritional status,and mental state too poor to tolerate the procedure.Clinical data of 141 patients who met the above criteria, had undergone PE in the Sixth Affiliated Hospital of Sun Yat-sen University from January 2018 to September 2022, had complete perioperative clinical data, and had given written informed consent to the procedure were collected,and the operation,relevant perioperative variables, postoperative pathological findings (curative resection), and early postoperative complications were analyzed. Results: Of the 141 included patients, 43 (30.5%) had primary malignancies, 61 (43.3%) recurrent malignancies, 28 (19.9%) complex fistulas after radical resection of malignancies,and nine (6.4%)complex fistulas caused by benign disease. There were 79 cases (56.0%) of gastrointestinal tumors, 30 cases (21.3%) of reproductive tumors, 16 cases (11.3%) of urinary tumors, and 7 cases (5.0%) of other tumors such mesenchymal tissue tumors. Among the 104 patients with primary and recurrent malignancies, 15 patients with severe complications of pelvic perineum of advanced tumors were planned to undergo palliative PE surgery for symptom relief after preoperative assessment of multidisciplinary team; the other 89 patients were evaluated for radical PE surgery. All surgeries were successfully completed. Total PE was performed on 73 patients (51.8%),anterior PE on 22 (15.6%),and posterior PE in 46 (32.6%). The median operative time was 576 (453,679) minutes, median intraoperative blood loss 500 (200, 1 200) ml, and median hospital stay 17 (13.0,30.5)days.There were no intraoperative deaths. Of the 89 patients evaluated for radical PE surgery, the radical R0 resection was achieved in 64 (71.9%) of them, R1 resection in 23 (25.8%), and R2 resection in two (2.2%). One or more postoperative complications occurred in 85 cases (60.3%), 32 (22.7%)of which were Clavien-Dindo grade III and above.One patient (0.7%)died during the perioperative period. Conclusion: PE is a valid option for treating locally advanced or recurrent pelvic malignancies and complex pelvic fistulas.
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Affiliation(s)
- H Yuan
- Department of Urology, the Sixth Affiliated Hospital, Sun Yat-sen University,Guangzhou 510655, China
| | - B Yao
- Department of Urology, the Sixth Affiliated Hospital, Sun Yat-sen University,Guangzhou 510655, China
| | - J T Li
- Department of Urology, the Sixth Affiliated Hospital, Sun Yat-sen University,Guangzhou 510655, China
| | - W L Zhu
- Department of Urology, the Sixth Affiliated Hospital, Sun Yat-sen University,Guangzhou 510655, China
| | - D L Ren
- Department of Pelvic Floor Diseases, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - H Wang
- Department of Colorectal Surgery, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - T H Ma
- Department of Colorectal Surgery, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - S Q Chen
- Department of Gynecology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - J J Wu
- Department of Urology, the Sixth Affiliated Hospital, Sun Yat-sen University,Guangzhou 510655, China
| | - Y R Tao
- Department of Urology, the Sixth Affiliated Hospital, Sun Yat-sen University,Guangzhou 510655, China
| | - L Ye
- Department of Urology, the Sixth Affiliated Hospital, Sun Yat-sen University,Guangzhou 510655, China
| | - Z Y Wang
- Department of Urology, the Sixth Affiliated Hospital, Sun Yat-sen University,Guangzhou 510655, China
| | - H Qu
- Department of Urology, the Sixth Affiliated Hospital, Sun Yat-sen University,Guangzhou 510655, China
| | - B Ma
- Department of Urology, the Sixth Affiliated Hospital, Sun Yat-sen University,Guangzhou 510655, China
| | - W W Zhong
- Department of Urology, the Sixth Affiliated Hospital, Sun Yat-sen University,Guangzhou 510655, China
| | - D J Wang
- Department of Urology, the Sixth Affiliated Hospital, Sun Yat-sen University,Guangzhou 510655, China
| | - J G Qiu
- Department of Urology, the Sixth Affiliated Hospital, Sun Yat-sen University,Guangzhou 510655, China
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Ma B, Zhang J, Li X, Zou W. Stochastic photonic spiking neuron for Bayesian inference with unsupervised learning. Opt Lett 2023; 48:1411-1414. [PMID: 36946940 DOI: 10.1364/ol.484268] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
Stochasticity is an inherent feature of biological neural activities. We propose a noise-injection scheme to implement a GHz-rate stochastic photonic spiking neuron (S-PSN). The firing-probability encoding is experimentally demonstrated and exploited for Bayesian inference with unsupervised learning. In a breast diagnosis task, the stochastic photonic spiking neural network (S-PSNN) can not only achieve a classification accuracy of 96.6%, but can also evaluate the diagnosis uncertainty with prediction entropies. As a result, the misdiagnosis rate is reduced by 80% compared to that of a conventional deterministic photonic spiking neural network (D-PSNN) for the same task. The GHz-rate S-PSN endows the neuromorphic photonics with high-speed Bayesian inference for reliable information processing in error-critical scenarios.
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Abstract
Porphyromonas gingivalis, a major periodontal pathogen, invades autophagosomes of cells, including gingival epithelial cells, endothelial cells, gingival fibroblasts, macrophages, and dendritic cells, to escape antimicrobial autophagy and lysosome fusion. However, it is not known how P. gingivalis resists autophagic immunity, survives within cells, and induces inflammation. Thus, we investigated whether P. gingivalis could escape antimicrobial autophagy by promoting lysosome efflux to block autophagic maturation, leading to intracellular survival, and whether the growth of P. gingivalis within cells results in cellular oxidative stress, causing mitochondrial damage and inflammatory responses. P. gingivalis invaded human immortalized oral epithelial cells in vitro and mouse oral epithelial cells of gingival tissues in vivo. The production of reactive oxygen species (ROS) increased upon bacterial invasion, as well as mitochondrial dysfunction-related parameters with downregulated mitochondrial membrane potential and intracellular adenosine triphosphate (ATP), upregulated mitochondrial membrane permeability, intracellular Ca2+ influx, mitochondrial DNA expression, and extracellular ATP. Lysosome excretion was elevated, the number of intracellular lysosomes was diminished, and lysosomal-associated membrane protein 2 was downregulated. Expression of autophagy-related proteins, microtubule-associated protein light chain 3, sequestosome-1, the NLRP3 inflammasome, and interleukin-1β increased with P. gingivalis infection. P. gingivalis may survive in vivo by promoting lysosome efflux, blocking autophagosome-lysosome fusion, and destroying autophagic flux. As a result, ROS and damaged mitochondria accumulated and activated the NLRP3 inflammasome, which recruited the adaptor protein ASC and caspase 1, leading to the production of proinflammatory factor interleukin-1β and inflammation.
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Affiliation(s)
- M Liu
- Department of Periodontology & Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, China
| | - J Shao
- Department of Periodontology & Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, China
| | - Y Zhao
- Department of Periodontology & Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, China
| | - B Ma
- Department of Periodontology & Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, China
| | - S Ge
- Department of Periodontology & Tissue Engineering and Regeneration, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, China
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Liang J, Ma B, Feng Z, Huang J. Reliability-aware Task Processing and Offloading for Data-intensive Applications in Edge computing. IEEE Trans Netw Serv Manage 2023. [DOI: 10.1109/tnsm.2023.3258191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Jingyu Liang
- Beijing Key Laboratory of Petroleum Data Mining, China University of Petroleum, Beijing, China
| | - Bowen Ma
- Beijing Key Laboratory of Petroleum Data Mining, China University of Petroleum, Beijing, China
| | - Zihan Feng
- Beijing Key Laboratory of Petroleum Data Mining, China University of Petroleum, Beijing, China
| | - Jiwei Huang
- Beijing Key Laboratory of Petroleum Data Mining, China University of Petroleum, Beijing, China
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Ma B, Zhang J, Zhao Y, Zou W. Analog-to-spike encoding and time-efficient RF signal processing with photonic neurons. Opt Express 2022; 30:46541-46551. [PMID: 36558605 DOI: 10.1364/oe.479077] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
The radio-frequency (RF) signal processing in real time is indispensable for advanced information systems, such as radar and communications. However, the latency performance of conventional processing paradigm is worsened by high-speed analog-to-digital conversion (ADC) generating massive data, and computation-intensive digital processing. Here, we propose to encode and process RF signals harnessing photonic spiking response in fully-analog domain. The dependence of photonic analog-to-spike encoding on threshold level and time constant is theoretically and experimentally investigated. For two classes of waveforms from real RF devices, the photonic spiking neuron exhibits distinct distributions of encoded spike numbers. In a waveform classification task, the photonic-spiking-based scheme achieves an accuracy of 92%, comparable to the K-nearest neighbor (KNN) digital algorithm for 94%, and the processing latency is reduced approximately from 0.7 s (code running time on a CPU platform) to 80 ns (light transmission delay) by more than one million times. It is anticipated that the asynchronous-encoding, and binary-output nature of photonic spiking response could pave the way to real-time RF signal processing.
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Ma B, Zhang TT, Jia YD, Wang H, Zhu XY, Zhang WJ, Li XM, Liu HB, Xie D. Characteristics of vertical drop jump to screen the anterior cruciate ligament injury. Eur Rev Med Pharmacol Sci 2022; 26:7395-7403. [PMID: 36314309 DOI: 10.26355/eurrev_202210_30008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE To clarify the characteristics of vertical drop jump (VDJ) for screening athletes at high risk of ACL injury by comparing the kinematic, kinetic and electromyographic variables of different VDJ. SUBJECTS AND METHODS Thirty male soccer players were recruited to measure parameters of knee kinematics, kinetics, and surface electromyograph during VDJ in four kinds of movements measured (the distance between the take-off feet is 5 cm or 30 cm, and the distance between the landing feet is 5 cm or 30 cm) using the Vicon motion capture system, Kistler3-D dynamometer, and Noraxon surface electromyograph test system. RESULTS The peak knee abduction moment was significantly greater for landing feet distance of 30 cm compared to landing feet distance of 5 cm, regardless of whether the distance between take-off feet was 5 cm (0.58 vs. 0.44) or 30 cm (0.61 vs. 0.40); regardless of whether the distance between landing feet was 5 cm (22.78 vs. 20.45) or 30 cm (24.32 vs. 21.87), the peak vertical Ground Reaction Force was significantly increased for the take-off feet distance was 5 cm compared to take-off feet of 30 cm. CONCLUSIONS In the test of VDJ, athletes will adopt different landing strategies for different movement instructions, and the VDJ with the distance of 5 cm between the take-off feet and the distance of 30 cm between the landing feet may be the better maneuver to screen for risk of ACL injury.
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Affiliation(s)
- B Ma
- School of Sports Medicine and Rehabilitation, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian city, Shandong Province, China.
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Zhou Y, Ge H, Ma B, Zhang S, Huang J. Collaborative task offloading and resource allocation with hybrid energy supply for UAV-assisted multi-clouds. J Cloud Comp 2022. [DOI: 10.1186/s13677-022-00317-2] [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: 11/10/2022]
Abstract
AbstractCloud computing has emerged as a promising paradigm for meeting the growing resource demands of Internet of Things (IoT) devices. Meanwhile, with the popularity of mobile aerial base stations, Unmanned Aerial Vehicle (UAV) assisted cloud computing is essential for providing diversified service at areas without available infrastructure. However, it is difficult to meet the requirements of a number of IoT devices which distribute a large area through one single UAV cloud server, and thus multi-clouds have been applied in large-scale IoT environments. Due to the limited battery capacity of UAV, hybrid energy supply has been considered as an effective approach. How to allocate the computing resources and offload the tasks to the UAV-assisted clouds is a challenging task. In this paper, we study the trade-off between the energy consumption and system performance in a UAV-assisted multi-clouds system. Considering the transmission and execution cost, a dynamic optimization problem with the objective of minimizing the power consumption of UAVs with the constraint of queue stability is formulated, which is further decomposed into three sub-problems using stochastic optimization techniques. A collaborative task offloading and resources allocation algorithm (CTORAA) based on artificial intelligent (AI) technique is proposed to jointly determine task offloading and energy harvesting. We provide corresponding mathematical analysis showing that CTORAA can reach the arbitrary profit-stability trade-off. Finally, we conduct simulation experiments to validate the efficacy of our algorithm.
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20
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Yang N, Zhao W, Pan Y, Lyu XZ, Hao XY, Qi WA, Du L, Liu EM, Chen T, Zhang WS, Zhang CF, Zhu GN, Wang QM, Meng WB, Liang YB, Jin YH, Wang W, Xing D, Tian JH, Ma B, Wang XH, Song XP, Ge L, Yang KH, Liu XQ, Wei JM, Chen Y. [Development of a Ranking Tool for Scientificity, Transparency and Applicability of Clinical Practice Guidelines]. Zhonghua Yi Xue Za Zhi 2022; 102:1-10. [PMID: 35701091 DOI: 10.3760/cma.j.cn112137-20220219-00340] [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: 06/15/2023]
Abstract
Objective: To address the limitations of existing methods and tools for evaluating clinical practice guidelines, we aimed to develop a comprehensive instrument focusing on the three main dimensions of guideline development: scientificity, transparency, applicability. We will use it to rank the guidelines according to the scores. We abbreviated it as STAR, and its reliability, validity and usability were also tested. Methods: A multidisciplinary expert working group was set up, including methodologists, statisticians, journal editors, medical professionals, and others. Scoping review, Delphi methods and hierarchical analysis were used to determine the final checklist of STAR. Results: The new instrument contained 11 domains and 39 items. Intrinsic reliability of each domain was indicated by Cronbach's α coefficient, with a average value of 0.646. The Cohen's kappa coefficients for methodological evaluators and clinical evaluators were 0.783 and 0.618. The overall content validity index was 0.905. The R2 for the criterion validity analysis was 0.76. The average score for usability of the items was 4.6, and the mean time spent to evaluate each guideline was 20 minutes. Conclusion: The instrument has good reliability, validity and evaluating efficiency, and can be used for evaluating and ranking guidelines more comprehensively.
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Affiliation(s)
- N Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - W Zhao
- General Editorial Office, Chinese Medical Association Publishing House, Beijing 100052, China
| | - Y Pan
- Marketing and Sales Department, Chinese Medical Association Publishing House, Beijing 100052, China
| | - X Z Lyu
- Editorial Department, Chinese Medical Journal, Chinese Medical Association Publishing House, Beijing 100052, China
| | - X Y Hao
- Editorial Department, Chinese Medical Journal (English Edition), Chinese Medical Association Publishing House, Beijing 100052, China
| | - W A Qi
- Editorial Department, British Medical Journal (Chinese Edition), Chinese Medical Association Publishing House, Beijing 100052, China
| | - L Du
- Evidence-Based Medicine Center, West China School of Medicine, West China Hospital, Sichuan University, Chengdu 610041
| | - E M Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014
| | - T Chen
- Department of Hematology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - W S Zhang
- Department of Obstetrics and Gynecology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - C F Zhang
- Children's Hospital of Fudan University, Shanghai 201102, China
| | - G N Zhu
- Department of Dermatology, Xijing Hospital, Xi'an 710032, China
| | - Q M Wang
- Department of Medical Oncology, Henan Cancer Hospital, Zhengzhou 450008, China
| | - W B Meng
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - Y B Liang
- Department of Ophthalmology, The Eye Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Y H Jin
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430072, China
| | - W Wang
- Department of Urology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, China
| | - D Xing
- Department of Trauma and Orthopaedics, Peking University People's Hospital, Beijing 100044, China
| | - J H Tian
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - B Ma
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - X H Wang
- School of Public Health, Lanzhou University, Lanzhou 730000
| | - X P Song
- School of Public Health, Lanzhou University, Lanzhou 730000
| | - L Ge
- School of Public Health, Lanzhou University, Lanzhou 730000
| | - K H Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - X Q Liu
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union & Peking Union Medical College, Beijing 100730
| | - J M Wei
- Chinese Medical Association Publishing House, Beijing 100052, China
| | - Yaolong Chen
- Research Unit of Evidence-Based Evaluation and Guidelines (2021RU017), Chinese Academy of Medical Sciences, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China Guidelines and Standards Research Center, Chinese Medical Association Publishing House, Beijing 100052, China
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Cui W, Bogdewic S, Smith K, Ma B, Shahverdiani R, Tiss A, Lago L, Tra Lou R, Miciano D, Hairston R, Lochard D, Zeck J, Eldridge P. Regulatory Affairs, Quality Systems, Policy, and Ethics: CRITICAL FACILITY ENVIRONMENTAL PARAMETER ASSESSMENT FOR CELL PROCESSING LABORATORIES. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00494-7] [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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Ma B, Guo J, Chu H, De Biase A, Sourlos N, Tang W, Langendijk J, M P, van Ooijen A, Both S, Sijtsema N. PO-1777 Self-supervised image feature extraction for outcomes prediction in oropharyngeal cancer. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03741-0] [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: 11/27/2022]
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Lin B, Ma B, Chen J, Zhou Y, Zhou J, Yan X, Xue C, Luo X, Liu Q, Wang J, Bian R, Yang G, Liu F. Sea-urchin-like ReS2 nanosheets with charge edge-collection effect as a novel cocatalyst for high-efficiency photocatalytic H2 evolution. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.07.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Du S, Liang C, Sun Y, Ma B, Gao W, Geng W. The Attenuating Effect of Low-Intensity Pulsed Ultrasound on Hypoxia-Induced Rat Chondrocyte Damage in TMJ Osteoarthritis Based on TMT Labeling Quantitative Proteomic Analysis. Front Pharmacol 2022; 12:752734. [PMID: 34970140 PMCID: PMC8712703 DOI: 10.3389/fphar.2021.752734] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 11/29/2021] [Indexed: 11/13/2022] Open
Abstract
Temporomandibular joint osteoarthritis (TMJOA) is a degenerative disease with a complex and multifactorial etiology. An increased intrajoint pressure or weakened penetration can exacerbate the hypoxic state of the condylar cartilage microenvironment. Our group previously simulated the hypoxic environment of TMJOA in vitro. Low-intensity pulsed ultrasound (LIPUS) stimulation attenuates chondrocyte matrix degradation via a hypoxia-inducible factor (HIF) pathway-associated mechanism, but the mode of action of LIPUS is currently poorly understood. Moreover, most recent studies investigated the pathological mechanisms of osteoarthritis, but no biomarkers have been established for assessing the therapeutic effect of LIPUS on TMJOA with high specificity, which results in a lack of guidance regarding clinical application. Here, tandem mass tag (TMT)-based quantitative proteomic technology was used to comprehensively screen the molecular targets and pathways affected by the action of LIPUS on chondrocytes under hypoxic conditions. A bioinformatic analysis identified 902 and 131 differentially expressed proteins (DEPs) in the <1% oxygen treatment group compared with the control group and in the <1% oxygen + LIPUS stimulation group compared with the <1% oxygen treatment group, respectively. The DEPs were analyzed by gene ontology (GO), KEGG pathway and protein-protein interaction (PPI) network analyses. By acting on extracellular matrix (ECM)-associated proteins, LIPUS increases energy production and activates the FAK signaling pathway to regulate cell biological behaviors. DEPs of interest were selected to verify the reliability of the proteomic results. In addition, this experiment demonstrated that LIPUS could upregulate chondrogenic factors (such as Sox9, Collagen Ⅱ and Aggrecan) and increase the mucin sulfate content. Moreover, LIPUS reduced the hydrolytic degradation of the ECM by decreasing the MMP3/TIMP1 ratio and vascularization by downregulating VEGF. Interestingly, LIPUS improved the migration ability of chondrocytes. In summary, LIPUS can regulate complex biological processes in chondrocytes under hypoxic conditions and alter the expression of many functional proteins, which results in reductions in hypoxia-induced chondrocyte damage. ECM proteins such as thrombospondin4, thrombospondin1, IL1RL1, and tissue inhibitors of metalloproteinase 1 play a central role and can be used as specific biomarkers determining the efficacy of LIPUS and viable clinical therapeutic targets of TMJOA.
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Affiliation(s)
- Sa Du
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Chao Liang
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Yujie Sun
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Bowen Ma
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Wenmo Gao
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Wei Geng
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
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Chen S, Wang Y, Wang Z, Zhang X, Deng C, Ma B, Yang J, Lu Q, Zhao Y. Sleep Duration and Frailty Risk among Older Adults: Evidence from a Retrospective, Population-Based Cohort Study. J Nutr Health Aging 2022; 26:383-390. [PMID: 35450995 DOI: 10.1007/s12603-022-1766-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVES Frailty and sleep duration complaints are both prevalent and often coexist among older adults. The purpose of this study was to examine the prospective association between sleep duration and frailty risk in a nationally representative cohort study. DESIGN Prospective cohort study, ten-year follow-up. SETTING Community-based setting in 23 provinces of China. PARTICIPANTS A total of 7623 older adults age 65 and over without frailty at baseline were included in the analysis. MEASUREMENTS The participants were divided into three groups according to self-reported sleep duration: short (≤6 hours per day), middle (>6 but <10 hours per day) and long (≥10 hours per day). Frailty was measured according to the accumulation of health deficits by the construction of a frailty index of 38 items with 0.25 as the cutoff. A Cox proportional hazard model, a competing risk model and a generalized estimating equation (GEE) model with multiple adjustments were performed to evaluate the association between sleep duration and frailty risk. RESULTS During a median follow-up period of 4.4 years (IQR 2.9-9.0), 2531 (33.2%) individuals developed frailty. Compared with participants with middle sleep duration, the risk of frailty was increased among participants with long sleep duration (HR 1.26, 95% CI 1.14-1.38) in the fully adjusted Cox proportional hazard model. However, short sleep duration was insignificantly associated with frailty risk. The competing risk model and the GEE model yielded similar results. CONCLUSION Long sleep duration is significantly associated with frailty incidence among older adults even after adjustment for confounding factors. This study provides reinforcing longitudinal evidence for the need to design sleep quality improvement interventions in health care programs to prevent frailty among older adults.
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Affiliation(s)
- S Chen
- Qi Lu, MD, School of Nursing, Tianjin Medical University, Tianjin, 300070, China. Tel:86-23542855. Email address: ; Yue Zhao, PhD, Professor, School of Nursing, Tianjin Medical University, Tianjin, 300070, China. Tel:86-23542855. Email address:
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Ma B, Ren L, Liu G, Li J, Xiao Y, Li D, Gao Y, Kuang P. A non-dispersive infrared sensor for real-time detection of cyanogen chloride. S Afr j chem 2022. [DOI: 10.17159/0379-4350/2022/v76a03] [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: 11/05/2022]
Abstract
Cyanogen chloride, as a systemic toxic agent, can cause death rapidly. In this paper, a non-dispersive infrared sensor was designed for the infrared absorption detection of cyanogen chloride at 800 cm−1. The roughness of the internal coating material was analyzed by experiments, and the gold-plated gas chamber was selected. The light path propagation of different cross-section gas chambers was simulated, and the circular section gas chamber was selected to increase the infrared detector signal. The effect of flow rate on voltage was studied. The standard curve between voltage and concentration was obtained under the optimal condition of 0.4 L min−1. The maximum response time was 19 s, and RSD was less than 2%. The interference experiment results showed that common gases entering the gas chamber do not cause interference. The non-dispersive infrared sensor for cyanogen chloride has good stability and detects cyanogen chloride in real-time.
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Ma B, Yue X, Sun Y, Peng L, Geng W. Accuracy of photogrammetry, intraoral scanning, and conventional impression techniques for complete-arch implant rehabilitation: an in vitro comparative study. BMC Oral Health 2021; 21:636. [PMID: 34893053 PMCID: PMC8665494 DOI: 10.1186/s12903-021-02005-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 12/01/2021] [Indexed: 12/05/2022] Open
Abstract
Background To compare the accuracy of photogrammetry, intraoral scanning and conventional impression techniques for complete-arch implant rehabilitation. Methods A master cast containing 6 implant abutment replicas was fabricated. Group PG: digital impressions were taken 10 times using a photogrammetry system; Group IOS: intraoral scanning was performed to fabricate 10 digital impressions; Group CNV: splinted open-tray impression technique was used to fabricate 10 definitive casts. The master cast and conventional definitive casts were digitized with a laboratory reference scanner. For all STL files obtained, scan bodies were converted to implant abutment replicas using a digital library. The accuracy of a digitizer was defined by 2 main parameters, trueness and precision. "Trueness" was used to describe the deviation between test files and reference file, and "precision" was used to describe the closeness between test files. Then, the trueness and precision of three impression techniques were evaluated and statistically compared (α = 0.05). Results The median trueness was 24.45, 43.45 and 28.70 μm for group PG, IOS and CNV; Group PG gave more accurate trueness than group IOS (P < 0.001) and group CNV (P = 0.033), group CNV showed more accurate trueness than group IOS (P = 0.033). The median precision was 2.00, 36.00 and 29.40 μm for group PG, IOS and CNV; Group PG gave more accurate precision than group IOS (P < 0.001) and group CNV (P < 0.001), group CNV showed more accurate precision than IOS (P = 0.002). Conclusions For complete-arch implant rehabilitation, the photogrammetry system showed the best accuracy of all the impression techniques evaluated, followed by the conventional impression technique, and the intraoral scanner provided the least accuracy.
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Affiliation(s)
- Bowen Ma
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, No. 4 Tian Tan Xi Li, Dongcheng District, Beijing, 100050, People's Republic of China
| | - Xinxin Yue
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, No. 4 Tian Tan Xi Li, Dongcheng District, Beijing, 100050, People's Republic of China
| | - Yujie Sun
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, No. 4 Tian Tan Xi Li, Dongcheng District, Beijing, 100050, People's Republic of China
| | - Lingyan Peng
- Department of Prosthodontics, Beijing Citident Stomatology Hospital, No. 109 North Xidan Street, Xicheng District, Beijing, 100032, People's Republic of China
| | - Wei Geng
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, No. 4 Tian Tan Xi Li, Dongcheng District, Beijing, 100050, People's Republic of China.
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Wang XX, Xiang Y, Meng Y, Ma B, Hu XY, Tang HT, Ben DF, Xiao SC. [Clinical effects of negative pressure wound therapy in treating the poor healing of incisions after different abdominal operations]. Zhonghua Shao Shang Za Zhi 2021; 37:1054-1060. [PMID: 34794257 DOI: 10.3760/cma.j.cn501120-20210518-00194] [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: 11/05/2022]
Abstract
Objective: To investigate the clinical effects of negative pressure wound therapy (NPWT) in treating the poor healing of incisions after different abdominal operations. Methods: The retrospective observational study was conducted. From June 2019 to December 2020, 42 patients with poor healing of incisions after abdominal surgery were admitted to Center of Burns and Trauma of the First Affiliated Hospital of Naval Medical University, including 29 males and 13 females, aged 23-81 years. The disease course of poor healing of abdominal incision was 3-60 d. The preoperative examination of patients was completed after admission, and NPWT was used after debridement. According to the dehiscence level of incision, the negative pressure value of -10.64 to -6.65 kPa was set. The incisions were sutured in the second stage when the incisions had good blood circulation. The cause of abdominal surgery, the dehiscence level and the cause of poor healing of abdominal incision were investigated, and the final healing of abdominal incision and the occurrence of complication were observed. Results: The causes of abdominal operations in this group of patients who ocurred poor healing of abdominal incisions were ranked according to the composition ratio, with the top 4 causes being colon cancer (9 cases, accounting for 21.4%), bile duct disease (8 cases, accounting for 19.0%), liver cancer (5 cases, accounting for 11.9%), and appendicitis (4 cases, accounting for 9.5%). There were 25 cases (59.5%) with dehiscence of abdominal incision in the deep fascia layer, and the other 17 cases (40.5%) with dehiscence of abdominal incision in the superficial fascia layer. The causes of poor healing of abdominal incision were ranked according to the composition ratio, with the top 3 causes being infection (24 cases, accounting for 57.1%), fat liquefaction (11 cases, accounting for 26.2%), and suture reaction (5 cases, accounting for 11.9%). The blood circulation in 40 patients was improved after being treated with NPWT, and the incisions were sutured in the second stage. The incisions healed well when the suture lines were removed in the second to third week. Intestinal fistula and bile leakage developed during the NPWT treatment, respectively in the other 2 patients, in which negative pressure equipment was removed subsequently, and the incisions healed after adequate drainage and conventional dressing changes. Conclusions: NPWT is effective in treating poor healing of abdominal incision after different abdominal surgeries. The clinicians need to comprehensively assess the patient's condition to determine when and how to use NPWT to avoid the occurrence of intestinal fistula, bile leakage, and other complications.
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Affiliation(s)
- X X Wang
- Center of Burns and Trauma, the First Affiliated Hospital, Naval Medical University, Shanghai 200433, China
| | - Y Xiang
- Center of Burns and Trauma, the First Affiliated Hospital, Naval Medical University, Shanghai 200433, China
| | - Y Meng
- Center of Burns and Trauma, the First Affiliated Hospital, Naval Medical University, Shanghai 200433, China
| | - B Ma
- Center of Burns and Trauma, the First Affiliated Hospital, Naval Medical University, Shanghai 200433, China
| | - X Y Hu
- Center of Burns and Trauma, the First Affiliated Hospital, Naval Medical University, Shanghai 200433, China
| | - H T Tang
- Center of Burns and Trauma, the First Affiliated Hospital, Naval Medical University, Shanghai 200433, China
| | - D F Ben
- Center of Burns and Trauma, the First Affiliated Hospital, Naval Medical University, Shanghai 200433, China
| | - S C Xiao
- Center of Burns and Trauma, the First Affiliated Hospital, Naval Medical University, Shanghai 200433, China
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Ma B, LaBrot B, Atkinson I. Challenges to effective breastfeeding among indigenous Ngäbe-Bugle communities in Panama. Eur J Public Health 2021. [DOI: 10.1093/eurpub/ckab164.154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Panama's overall infant mortality rate is 13.2 deaths per 1000 live births and 28.4 per 1,000 among indigenous populations such as the Ngäbe-Bugle. 93.8% of the Ngäbe population is impoverished and the cost of formula is prohibitive, resulting in poor substitutes such as cheap sugary beverages. These mothers received little education for breastfeeding and it is understandable why breastmilk ‘alternatives' are used. This study explored factors impeding effective breastfeeding in a representative community-based cohort of indigenous Ngäbe-Bugle mothers. This study used the hypothesis that preventable breastfeeding challenges are common and likely negatively impact infant health.
Methods
We conducted a closed response and open questionnaire survey of 139 selectively sampled Ngäbe women with 529 live births in 2018-2019. Mothers reported the need for support, use of milk substitutes, and breastfeeding complications such as mastitis. Systemic barriers such as poor access to healthcare professionals were also assessed. Data was analyzed with SAS and Power-BI statistical software by independent statisticians.
Results
71% of mothers stated a need for more support. 32% ceased breastfeeding and used milk substitutes. Latching difficulties (2%), pain (3%), sore, cracked, and bleeding nipples (2%), and mastitis (8%) contributed to cessation. 80% reported no formal education on infant feeding and 83% were unaware of breastmilk benefits. 12% received breastfeeding support from healthcare professionals and 2% received it from a village midwife.
Conclusions
Among the Ngabe, lack of knowledge or access to health services contribute to breastfeeding complications and challenges resulting in cessation and the use of poor milk substitutes.
Key messages
Breastfeeding initiation and continuation rates are negatively affected by poor education, poor healthcare access, and complications resulting in breastfeeding cessation and milk substitution. Supporting mothers with community-based education and improved healthcare access seems likely to positively impact these challenges to effective infant nutrition.
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Affiliation(s)
- B Ma
- Maternal Health, Floating Doctors, Topanga, USA
- Global Medicine, University of Southern California - Keck School of Medicine, Los Angeles, USA
| | - B LaBrot
- Global Medicine, University of Southern California - Keck School of Medicine, Los Angeles, USA
- Floating Doctors, Topanga, USA
| | - I Atkinson
- Maternal Health, Floating Doctors, Bocas Del Toro, Panama
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Sun G, Jiang F, Hu S, Cheng H, Qu L, Tao Y, Ma B. Metabolomic analysis reveals potential biomarkers and serum metabolomic profiling in spontaneous intracerebral hemorrhage patients using UPLC/quadrupole time-of-flight MS. Biomed Chromatogr 2021; 36:e5241. [PMID: 34505712 DOI: 10.1002/bmc.5241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 11/08/2022]
Abstract
Spontaneous intracerebral hemorrhage (ICH) accounts for 10-20% of all strokes and contributes to higher mortalities and severe disabilities. The aims of this study were, therefore, to characterize novel biomarkers, metabolic disruptions, and mechanisms involving ICH. A total 30 ICH patients and 30 controls were enrolled in the study, and their clinical characteristics were analyzed. Nontargeted metabolomic analysis was conducted using ultra-performance liquid chromatography quadrupole time-of-flight tandem mass spectrometry (UPLC/Q-TOF). Multivariate statistical analysis and receiver operating characteristic curve analysis were used for screening and evaluating the predictive ability of biomarkers. ICH patients showed significantly higher systolic blood pressure, diastolic blood pressure, blood glucose levels, white blood cell counts, neutrophil count, percentage of neutrophils and globulin and a lower albumin/globin ratio when compared with controls. In sum, 11 important metabolites were identified, which were associated with disruption of fatty acid oxidation and sphingolipid and phospholipid metabolism, as well as increased inflammation, oxidative stress, and vascular pathologies. Further multiple logistic regression analyses of these metabolites showed that l-carnitine and phosphatidylcholine (20:3/22:6) have potential as biomarkers of ICH, and the area under the curve, sensitivity, specificity were 0.974, 90%, and 93%, respectively. These findings provide insights into the pathogenesis, early prevention, and diagnosis of ICH.
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Affiliation(s)
- Guozhang Sun
- Department of Neurosurgery, Second Affiliated Hospital of Harbin Medical University, Harbin, China.,Department of Neurosurgery, Heilongjiang Provincial Hospital, Harbin, China
| | - Fengling Jiang
- Department of Internal Neurology, Harbin Xiangfang District People's Hospital, Harbin, China
| | - Shaoshan Hu
- Department of Neurosurgery, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Huakun Cheng
- Department of Neurosurgery, Heilongjiang Provincial Hospital, Harbin, China
| | - Lianlong Qu
- Department of Neurosurgery, Heilongjiang Provincial Hospital, Harbin, China
| | - Yu Tao
- Department of Neurosurgery, Heilongjiang Provincial Hospital, Harbin, China
| | - Bowen Ma
- Department of Neurosurgery, Heilongjiang Provincial Hospital, Harbin, China
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Cun DJ, Wang Q, Yao XY, Ma B, Zhang Y, Li LH. [Potential suitable habitats of Haemaphysalis longicornis in China under different climatic patterns]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:359-364. [PMID: 34505442 DOI: 10.16250/j.32.1374.2021023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
OBJECTIVE To evaluate the impact of environmental and climatic factors on the distribution of suitable habitats of Haemaphysalis longicornis, and to predict the potential distribution of H. longicornis under different climate patterns in China. METHODS Data pertaining to the distribution of H. longicornis were retrieved from public literatures. The effects of 19 climatic factors (annual mean temperature, annual mean temperature difference between day and night, isothermality, standard deviation of seasonal variation of temperature, maximum temperature of the warmest month, minimum temperature of the coldest month, temperature annual range, mean temperature of the wettest season, mean temperature of the driest season, mean temperature of the warmest season, mean temperature of the coldest season, annual mean precipitation, precipitation of the wettest month, precipitation of the driest month, coefficient of variance of precipitation, precipitation of the wettest season, precipitation of the driest season, precipitation of the warmest season and precipitation of the coldest season) and 4 environmental factors (elevation, slope, slope aspect and vegetation coverage) on the potential distribution of H. longicornis were assessed using the maximum entropy (MaxEnt) model based on the H. longicornis distribution data and climatic and environmental data, and the potential distribution of H. longicornis was predicted under the RCP 2.6 and 8.5 emissions scenarios. RESULTS Among the environmental and climatic factors affecting the geographical distribution of H. longicornis in China, the factors contributing more than 10% to the distribution of H. longicornis mainly included the precipitation of the driest month (26.0%), annual mean temperature (11.2%), annual mean precipitation (10.0%) and elevation (24.2%). Under the current climate pattern, the high-, medium- and low-suitable habitats of H. longicornis are 1 231 900, 1 696 200 km2 and 1 854 400 km2 in China, respectively. The distribution of H. longicornis increased by 336 100 km2 and 367 300 km2 in 2050 and 2070 under the RCP 2.6 emissions scenario, and increased by 381 000 km2 and 358 000 km2 in 2050 and 2070 under the RCP 8.5 emissions scenario in China, respectively. CONCLUSIONS Climatic and environmental factors, such as precipitation, temperature and elevation, greatly affect the distribution of H. longicornis in China, and the suitable habitats of H. longicornis may expand in China under different climate patterns in future.
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Affiliation(s)
- D J Cun
- School of Public Health and Management, Weifang Medical University, Weifang 261053, China
- Co-first authors
| | - Q Wang
- School of Public Health and Management, Weifang Medical University, Weifang 261053, China
- Co-first authors
| | - X Y Yao
- School of Public Health and Management, Weifang Medical University, Weifang 261053, China
| | - B Ma
- School of Public Health and Management, Weifang Medical University, Weifang 261053, China
| | - Y Zhang
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, China
| | - L H Li
- School of Public Health and Management, Weifang Medical University, Weifang 261053, China
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Li ZQ, Li LH, Yin HJ, Wei ZX, Guo YH, Ma B, Zhang Y. [Distribution and suitable habitats of ticks in the Yangtze River Delta urban agglomeration]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:365-372. [PMID: 34505443 DOI: 10.16250/j.32.1374.2021068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To investigate the current distribution of ticks and predict the suitable habitats of ticks in the Yangtze River Delta urban agglomeration in 2017, so as to provide insights into tick control and management of tick-borne diseases in these areas. METHODS All publications pertaining to tick and pathogen distribution in the Yangtze River Delta urban agglomeration were retrieved, and the geographical location of tick distribution was extracted. The effects of 19 climatic factors on the distribution of ticks were examined using the jackknife method, including the mean temperature of the wettest quarter, precipitation of the coldest quarter, mean temperature of the driest quarter, maximum temperature of the warmest month, precipitation of the driest month, minimal temperature of the coldest month, annual precipitation, mean daily temperature range, precipitation seasonality, annual temperature range, temperature seasonality, annual mean temperature, mean temperature of the warmest quarter, precipitation of the wettest quarter, isothermality, mean temperature of the coldest quarter, precipitation of the wettest month, precipitation of the driest quarter and precipitation of the warmest quarter. The distribution of ticks was analyzed in 2020 using the maximum entropy (MaxEnt) model, and the potential suitable habitats of ticks were predicted in 2070 using the MaxEnt model based on climatic data. RESULTS A total of 380 Chinese and English literatures were retrieved, and 148 tick distribution sites were extracted, with 135 sites included in the subsequent analysis. There were 7 genera (Haemaphysalis, Rhipicephalus, Ixodes, Dermacentor, Boophilus, Hyalomma and Amblyomma) and 27 species of ticks detected in the Yangtze River Delta urban agglomeration. The climatic factors affecting the distribution of ticks in the Yangtze River Delta urban agglomeration mainly included the mean temperature of the wettest quarter and the precipitation of the coldest quarter, with 26.1% and 23.6% contributions to tick distributions. The high-, medium- and low-suitable habitats of ticks were 20 337.08, 40 017.38 km2 and 74 931.43 km2 in the Yangtze River Delta urban agglomeration in 2020, respectively. The climate changes led to south expansion of the suitable habitats of ticks in the Yangtze River Delta urban agglomeration in 2070, and the total areas of suitable habitats of ticks was predicted to increase by 18 100 km2. In addition, the high-, medium- and low-suitable habitats of ticks were predicted to increase to 24 317.84, 45 283.02 km2 and 83 766.38 km2 in the Yangtze River Delta urban agglomeration in 2070, respectively. CONCLUSIONS Multiple tick species are widespread in the Yangtze River Delta urban agglomeration, and the future climate changes may lead to expansion of tick distribution in these areas.
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Affiliation(s)
- Z Q Li
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), NHC Key Laboratory of Parasite and Vector Biology, WHO Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, School of Global Health, Shanghai Jiaotong University School of Medicine and Chinese Center for Tropical Diseases Research, Shanghai 200025, China
| | - L H Li
- School of Public Health and Management, Weifang Medical University, China
| | - H J Yin
- Rizhao Community Health Service Center, Donggang District, Rizhao City, Shandong Province, China
| | - Z X Wei
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), NHC Key Laboratory of Parasite and Vector Biology, WHO Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, School of Global Health, Shanghai Jiaotong University School of Medicine and Chinese Center for Tropical Diseases Research, Shanghai 200025, China
| | - Y H Guo
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), NHC Key Laboratory of Parasite and Vector Biology, WHO Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, School of Global Health, Shanghai Jiaotong University School of Medicine and Chinese Center for Tropical Diseases Research, Shanghai 200025, China
| | - B Ma
- School of Public Health and Management, Weifang Medical University, China
| | - Y Zhang
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), NHC Key Laboratory of Parasite and Vector Biology, WHO Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, School of Global Health, Shanghai Jiaotong University School of Medicine and Chinese Center for Tropical Diseases Research, Shanghai 200025, China
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Yao XY, Tian N, Ma B, Zhang Y, Cun DJ, Li LH. [Effects of climate changes on the distribution of Rhipicephalus microplus in China]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:267-273. [PMID: 34286528 DOI: 10.16250/j.32.1374.2020298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To identify the environmental factors affecting the geographical distribution of Rhipicephalus microplus in China, and to examine the impact of climate changes on the distribution of R. microplus in China. METHODS The national and international publications pertaining to the geographical distribution of R. microplus in China were retrieved, and the geographical location was extracted. The suitable habitats of R. microplus and the dominant environmental factors affecting the distribution of suitable habitats of R. microplus were predicted in China based on the geographical data and environmental variables using the ArcGIS 10.7 software and the maximum entropy model. RESULTS Among the main climatic factors affecting the geographical distribution of R. microplus in China, the factors contributing more than 10% to the suitable habitats of R. microplus mainly include the annual mean precipitation (38.2%), the average temperature of the coldest quarter (28.4%) and the precipitation of the driest month (14.2%). The current suitable habitats of R. microplus were mainly found in southern China, and the high-, medium- and low-suitable areas accounted for 8.6%, 13.1% and 10.5% of the total land area of China, respectively. The suitable habitats of R. microplus were predicted to increase by 399 800 km2 in China using the maximum entropy model under the RCP 4.5 emissions scenario in 2070, and the emerging suitable habitats were mainly distributed in Gansu Province, Ningxia Hui Autonomous Region, Qinghai Province, Hebei Province, Shaanxi Province, Liaoning Province, Inner Mongolia Autonomous Region, Shandong Province, Sichuan Province and Tibeten Autonomous Region. In addition, the suitable habitats of R. microplus were predicted to show an overall expansion towards northward from present to 2070. CONCLUSIONS Climate changes affect the distribution of suitable habitats of R. microplus in China, and annual mean precipitation may be a key factor affecting the distribution of suitable habitats of R. microplus.
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Affiliation(s)
- X Y Yao
- School of Public Health, Weifang Medical University, Weifang 261053, China.,Co-first authors
| | - N Tian
- School of Public Health, Weifang Medical University, Weifang 261053, China.,Co-first authors
| | - B Ma
- School of Public Health, Weifang Medical University, Weifang 261053, China
| | - Y Zhang
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, China
| | - D J Cun
- School of Public Health, Weifang Medical University, Weifang 261053, China
| | - L H Li
- School of Public Health, Weifang Medical University, Weifang 261053, China
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Ma B, Ma XY, Chen HB, Zhang Y, Li LH. [Effects of environmental factors on the distribution of suitable habitats of Ixodes ovatus in China]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:281-286. [PMID: 34286530 DOI: 10.16250/j.32.1374.2020291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To identify the environmental factors affecting the distribution of suitable habitats of Ixodes ovatus, and to examine the effects of environmental changes on the distribution of suitable habitats of I. ovatus. METHODS Data pertaining to the distribution of I. ovatus in China were captured by literature review. The distribution of suitable habitats of I. ovatus in China was simulated using the maximum entropy model with the environmental variable data and the I. ovatus distribution data. In addition, the potential distribution of suitable habitats of I. ovatus was predicted based on the 2050 and 2070 environmental data. RESULTS The current suitable habitats of I. ovatus cover 3.11 million km2, accounting for 32.28% of the total land area of China, and they are mainly concentrated in southwestern and northwestern China. Among the screened 16 environmental factors, the standard deviation of seasonal variation of temperature, average annual precipitation and altitude were predominant environmental factors affecting the distribution of suitable habitats of I. ovatus, and these three variables contributed 76.5% to the distribution of suitable habitats of I. ovatus in China. The suitable habitats of I. ovatus were predicted to showing a tendency towards expansion to northwestern and northeastern China in 2050 and 2070, and the proportion of highly suitable habitats of I. ovatus was predicted to increase. CONCLUSIONS Moderate climate, adequate precipitation and high altitude are favorable for the survival of I. ovatus. Future climate changes may cause expansion of suitable habitats of I. ovatus in China.
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Affiliation(s)
- B Ma
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China.,School of Public Health and Management, Weifang Medical University, China
| | - X Y Ma
- Shengli Oilfield Central Hospital, China
| | - H B Chen
- School of Public Health and Management, Weifang Medical University, China
| | - Y Zhang
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China
| | - L H Li
- School of Public Health and Management, Weifang Medical University, China
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Lo HS, Hui KPY, Lai HM, He X, Khan KS, Kaur S, Huang J, Li Z, Chan AKN, Cheung HHY, Ng KC, Ho JCW, Chen YW, Ma B, Cheung PMH, Shin D, Wang K, Lee MH, Selisko B, Eydoux C, Guillemot JC, Canard B, Wu KP, Liang PH, Dikic I, Zuo Z, Chan FKL, Hui DSC, Mok VCT, Wong KB, Mok CKP, Ko H, Aik WS, Chan MCW, Ng WL. Simeprevir Potently Suppresses SARS-CoV-2 Replication and Synergizes with Remdesivir. ACS Cent Sci 2021; 7:792-802. [PMID: 34075346 PMCID: PMC8056950 DOI: 10.1021/acscentsci.0c01186] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Indexed: 05/08/2023]
Abstract
The outbreak of coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is a global threat to human health. Using a multidisciplinary approach, we identified and validated the hepatitis C virus (HCV) protease inhibitor simeprevir as an especially promising repurposable drug for treating COVID-19. Simeprevir potently reduces SARS-CoV-2 viral load by multiple orders of magnitude and synergizes with remdesivir in vitro. Mechanistically, we showed that simeprevir not only inhibits the main protease (Mpro) and unexpectedly the RNA-dependent RNA polymerase (RdRp) but also modulates host immune responses. Our results thus reveal the possible anti-SARS-CoV-2 mechanism of simeprevir and highlight the translational potential of optimizing simeprevir as a therapeutic agent for managing COVID-19 and future outbreaks of CoV.
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Affiliation(s)
- Ho Sing Lo
- School
of Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Shatin, Hong Kong
| | - Kenrie Pui Yan Hui
- School
of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
- Centre
for Immunology and Infection (C2I), Hong
Kong Science Park, Hong Kong, SAR, China
| | - Hei-Ming Lai
- Department
of Psychiatry, Faculty of Medicine, The
Chinese University of Hong Kong, Shatin, Hong Kong
- Department
of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
- Li
Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Xu He
- School
of Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Shatin, Hong Kong
| | - Khadija Shahed Khan
- School
of Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Shatin, Hong Kong
| | - Simranjeet Kaur
- Department
of Chemistry, Faculty of Science, Hong Kong
Baptist University, Kowloon
Tong, Hong Kong
| | - Junzhe Huang
- Department
of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
- Li
Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Zhongqi Li
- Department
of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
- Li
Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Anthony K. N. Chan
- Department
of Systems Biology, Beckman Research Institute, City of Hope, Duarte, California 91010, United States
| | - Hayley Hei-Yin Cheung
- School
of Life Sciences, Centre for Protein Science and Crystallography,
State Key Laboratory of Agrobiotechnology, Faculty of Science, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Ka-Chun Ng
- School
of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - John Chi Wang Ho
- School
of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Yu Wai Chen
- Department
of Applied Biology and Chemical
Technology and the State Key Laboratory of Chemical Biology and Drug
Discovery, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
| | - Bowen Ma
- School
of Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Shatin, Hong Kong
| | - Peter Man-Hin Cheung
- School
of Public Health, Faculty of Medicine, The
Chinese University of Hong Kong, Shatin, Hong Kong
| | - Donghyuk Shin
- Buchmann
Institute for Molecular Life Sciences, Goethe
University, 60323 Frankfurt am Main, Germany
- Department
of Systems Biology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Republic
of Korea
| | - Kaidao Wang
- Protein
Production Department, GenScript Biotech
Corporation, Nanjing, Jiangsu Province 211100, China
| | - Meng-Hsuan Lee
- Institute
of Biological Chemistry, Academia Sinica, Taipei, Taiwan 115
| | - Barbara Selisko
- Laboratoire
d’Architecture et Fonction des Macromolécules Biologiques
(AFMB), Centre National de la Recherche Scientifique, Aix-Marseille Université, 13007 Marseille, France
| | - Cecilia Eydoux
- Laboratoire
d’Architecture et Fonction des Macromolécules Biologiques
(AFMB), Centre National de la Recherche Scientifique, Aix-Marseille Université, 13007 Marseille, France
| | - Jean-Claude Guillemot
- Laboratoire
d’Architecture et Fonction des Macromolécules Biologiques
(AFMB), Centre National de la Recherche Scientifique, Aix-Marseille Université, 13007 Marseille, France
| | - Bruno Canard
- Laboratoire
d’Architecture et Fonction des Macromolécules Biologiques
(AFMB), Centre National de la Recherche Scientifique, Aix-Marseille Université, 13007 Marseille, France
| | - Kuen-Phon Wu
- Institute
of Biological Chemistry, Academia Sinica, Taipei, Taiwan 115
| | - Po-Huang Liang
- Institute
of Biological Chemistry, Academia Sinica, Taipei, Taiwan 115
| | - Ivan Dikic
- Buchmann
Institute for Molecular Life Sciences, Goethe
University, 60323 Frankfurt am Main, Germany
| | - Zhong Zuo
- School
of Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Shatin, Hong Kong
| | - Francis K. L. Chan
- Department
of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
- Institute
of Digestive Disease, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - David S. C. Hui
- Department
of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
- Stanley
Ho Center for Emerging Infectious Diseases, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Vincent C. T. Mok
- Department
of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
- Gerald
Choa Neuroscience Centre, Margaret K. L. Cheung Research Centre for
Management of Parkinsonism, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Kam-Bo Wong
- School
of Life Sciences, Centre for Protein Science and Crystallography,
State Key Laboratory of Agrobiotechnology, Faculty of Science, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Chris Ka Pun Mok
- HKU-Pasteur
Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Shatin, Hong Kong
| | - Ho Ko
- Department
of Psychiatry, Faculty of Medicine, The
Chinese University of Hong Kong, Shatin, Hong Kong
- Department
of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
- Li
Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
- Gerald
Choa Neuroscience Centre, Margaret K. L. Cheung Research Centre for
Management of Parkinsonism, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
- School
of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
- Peter
Hung Pain Research Institute, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Wei Shen Aik
- Department
of Chemistry, Faculty of Science, Hong Kong
Baptist University, Kowloon
Tong, Hong Kong
| | - Michael Chi Wai Chan
- School
of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
- Centre
for Immunology and Infection (C2I), Hong
Kong Science Park, Hong Kong, SAR, China
| | - Wai-Lung Ng
- School
of Pharmacy, Faculty of Medicine, The Chinese
University of Hong Kong, Shatin, Hong Kong
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Ma B, Ma XY, Zhang Y, Chen HB, Wang Q, Li LH. [Prediction of suitable habitats of Ixodes persulcatus in China]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:169-176. [PMID: 34008364 DOI: 10.16250/j.32.1374.2020244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To evaluate the effects of environmental factors the distribution of Ixodes persulcatus, and to predict the future suitable habitats of I. persulcatus in China. METHODS The known distribution sites of I. persulcatus in China were captured from national and international published literatures. The effects of 14 environmental factors on the distribution of I. persulcatus were examined using the Jackknife test, including mean annual temperature, mean monthly temperature range, isothermality, temperature seasonality, maximum temperature of the warmest month, minimum temperature of the coldest month, temperature annual range, mean temperature of the wettest quarter, mean temperature of the driest quarter, mean temperature of the wet-test quarter, mean temperature of the coldest quarter, annual mean precipitation, precipitation of the wettest month, precipitation of the driest month, precipitation seasonality, precipitation of the wettest quarter, precipitation of the driest quarter, precipitation of the warmest quarter, precipitation of the coldest quarter, elevation, slope, aspect and vegetation. The suitable habitats of I. persulcatus were predicted in China using the maximum entropy model and ArcGIS 10.7 software with the environmental factors. RESULTS Currently, the highly suitable habitats of I. persulcatus covered an area of 886 600 km2 in China, which were predominantly located in northeastern China. The environmental factors that contributed more than 10% to the distribution of the suitable habitats of I. persulcatus in China included annual temperature variation range (39.1%), the coldest quarterly precipitation (23.2%), and the annual mean precipitation (11.9%). Based on the maximum entropy model, the suitable habitats of I. persulcatus were predicted to show a shrinking tendency towards northeastern China in 2070. CONCLUSIONS The suitable habitat of I. persulcatus strongly correlates with temperature and precipitation, and climate and environmental changes may lead to shrinking of the future suitable habitat of I. persulcatus in China.
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Affiliation(s)
- B Ma
- School of Public Health and Management, Weifang Medical University, Weifang 261053, China
| | - X Y Ma
- Shengli Oilfield Central Hospital, China
| | - Y Zhang
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, China
| | - H B Chen
- School of Public Health and Management, Weifang Medical University, Weifang 261053, China
| | - Q Wang
- School of Public Health and Management, Weifang Medical University, Weifang 261053, China
| | - L H Li
- School of Public Health and Management, Weifang Medical University, Weifang 261053, China
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Wang K, Ma B, Feng T, Chen D, Yao L, Lu J, Sun M. Quantitative analysis of volatile compounds of four Chinese traditional liquors by SPME-GC-MS and determination of total phenolic contents and antioxidant activities. OPEN CHEM 2021. [DOI: 10.1515/chem-2021-0039] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
The aim of this work was to investigate the volatile compositions of four Chinese functional liquors. For this purpose, volatile compounds of four liquors were extracted with head-space solid-phase microextraction (HS-SPME) and analyzed with gas chromatography-mass spectrometry (GC-MS) along with the determination of odor activity value (OAV) and relative odor contribution (ROC). Sixty volatiles were tentatively identified and categorized into the following seven groups: alcohols, esters, fatty acids, carbonyl compound, hydrocarbons, phenols, and other components. The differences in chemical composition of volatile compounds were visualized with heat maps. Odorants were compared with different samples using a statistical analysis of Venn diagrams and a multivariate principal component analysis, and ethyl hexanoate, ethyl acetate, and ethyl octanoate were found to be the key odorants. Besides, abundant phenolic contents and high antioxidant ability of four Chinese functional liquors could potentially bring better health-boosting effects.
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Affiliation(s)
- Kai Wang
- Technology Centre of China Tobacco Yunnan Industrial Co., Ltd , Kunming 650231 , China
| | - Bowen Ma
- School of Perfume and Aroma Technology, Shanghai Institute of Technology , Shanghai , China
| | - Tao Feng
- School of Perfume and Aroma Technology, Shanghai Institute of Technology , Shanghai , China
| | - Da Chen
- Department of Food Science and Technology, The Ohio State University , 2015 Fyffe Road , Columbus , OH43210 , United States of America
| | - Linyun Yao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology , Shanghai , China
| | - Jun Lu
- Department of Health and Environmental Sciences, Auckland University of Technology , Auckland , New Zealand
| | - Min Sun
- School of Perfume and Aroma Technology, Shanghai Institute of Technology , Shanghai , China
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Wu MB, Ma B, Zhang TX, Zhao K, Cui SM, He SC. Propofol improves intestinal ischemia-reperfusion injury in rats through NF-κB pathway. Eur Rev Med Pharmacol Sci 2021; 24:6463-6469. [PMID: 32572944 DOI: 10.26355/eurrev_202006_21545] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE The aim of this study was to investigate the effects of propofol on intestinal ischemia-reperfusion injury in rats through the nuclear factor-kappa B (NF-κB) pathway. MATERIALS AND METHODS A total of 24 Sprague-Dawley rats were selected and randomly divided into three groups, including sham operation group, ischemia group and propofol group. Rats in sham operation group were only treated with isolation of superior mesenteric artery, which was clipped for 1 h and reperfused for 2 h in ischemia group. Meanwhile, propofol (60 mg/kg) was injected into the femoral vein 1 h before ischemia in propofol group. TUNEL assay was performed to detect cell apoptosis of intestinal tissues. Real-time quantitative polymerase chain reaction (RT-qPCR) was conducted to measure the expression levels of malondialdehyde (MDA), superoxide dismutase (SOD), myeloperoxidase (MPO), caspase-3 and B-cell lymphoma-2 (Bcl-2) in rats of each group. Western blotting was utilized to detect the protein expression levels of NF-κB pathway related molecules, such as myeloid differential protein-88 (MyD88), v-rel avian reticuloendotheliosis viral oncogene homolog A (RelA) and NF-κB. Furthermore, changes in plasma cytokine levels were determined via enzyme-linked immunosorbent assay (ELISA). RESULTS The number of apoptotic cells in ischemia group was remarkably higher than that in sham operation group (p<0.05). However, it decreased notably in propofol group compared with ischemia group (p<0.05). In comparison with sham operation group, significantly up-regulated expression of caspase-3 and down-regulated expression of Bcl-2 were observed in the intestinal tissues of rats in ischemia group (p<0.05). Caspase-3 was lowly expressed, while Bcl-2 was highly expressed in the intestinal tissues of rats in propofol group compared with ischemia group (p<0.05). In addition, no statistically significant differences were observed in the expression level of SOD among sham operation group, ischemia group and propofol group (p>0.05). The expression levels of MDA and MPO were overtly higher in the intestinal tissues of rats in ischemia group than those in sham operation group and propofol group (p<0.05). Besides, the protein expression levels of MyD88, RelA and NF-κB in the intestinal tissues of rats in ischemia group were remarkably higher than those in sham operation group and propofol group (p<0.05). The activity of the NF-κB pathway in the intestinal tissues of rats in propofol group significantly declined compared with ischemia group (p<0.05). Moreover, compared with sham operation group, plasma levels of TNF-α, interleukin (IL)-2, IL-6 and IL-4 increased significantly in rats of ischemia group (p<0.05). However, they were markedly lower in propofol group than those in ischemia group (p<0.05). CONCLUSIONS Propofol protects rats from intestinal ischemia-reperfusion injury through the NF-κB pathway.
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Affiliation(s)
- M-B Wu
- Department of Anesthesiology, Jinan City People's Hospital, Jinan, China.
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41
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Ma B, Feng T, Zhang S, Zhuang H, Chen D, Yao L, Zhang J. The Inhibitory Effects of Hericium erinaceus β-glucan on in vitro Starch Digestion. Front Nutr 2021; 7:621131. [PMID: 33553235 PMCID: PMC7859327 DOI: 10.3389/fnut.2020.621131] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 12/14/2020] [Indexed: 11/13/2022] Open
Abstract
β-glucan has attracted extensive attention due to its health promoting effects, such as lowering the blood sugar and lipids levels, and enhancing immunity. In this study, three different β-glucans (HEBG-1, HEBG-2, HEBG-3) were obtained from Hericium erinaceus by sodium hydroxide, β-1,3-glucanase and β-1,6-glucanase, respectively. The effects of the glucans on in vitro digestion of wheat starch were investigated by Englyst method. We found that addition of HEBGs significantly reduced the digestibility of starch, showing as decreased RDS and pGI, and increased SDS and RS content. In addition, the inhibitory effects positively correlated with the molecular weight of HEBG. The triple helix structure in HEBG plays important roles in inhibiting starch digestion. And β-1,3- glucan showed stronger inhibitor effects than those of β-1,6- glucan. This study unravels the mechanism of HEBG on inhibition of starch digestion and provides a theoretical understanding for the application of edible mushroom β-glucan to the development of low glycemic index starchy foods.
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Affiliation(s)
- Bowen Ma
- National Engineering Research Center of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China.,School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, China
| | - Tao Feng
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, China
| | - Sanfeng Zhang
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, China
| | - Haining Zhuang
- National Engineering Research Center of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Da Chen
- Department of Food Science and Technology, The Ohio State University, Columbus, OH, United States
| | - Lingyun Yao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, China
| | - Jingsong Zhang
- National Engineering Research Center of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, China
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Ma B, Dong F, Peng W, Liu X, Huang A, Zhang X, Liu J. Evaluation of impact of spur dike designs on enhancement of aquatic habitats in urban streams using 2D habitat numerical simulations. Glob Ecol Conserv 2020. [DOI: 10.1016/j.gecco.2020.e01288] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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43
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He W, Qiao ZX, Ma B. Long noncoding RNA FAM201A mediates the metastasis of lung squamous cell cancer via regulating ABCE1 expression. Eur Rev Med Pharmacol Sci 2020; 23:10343-10353. [PMID: 31841188 DOI: 10.26355/eurrev_201912_19672] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Long noncoding RNA (lncRNA) family with sequence similarity 201-member A (FAM201A) is a novel lncRNA promoting the development of various cancers. However, the biological function of FAM201A on the metastasis of lung squamous cell carcinoma (LSCC) remains unknown. The aim of this study was to explore the molecular mechanism of FAM201A and its target protein in advanced LSCC. PATIENTS AND METHODS Quantitative Polymerase Chain Reaction (qPCR) was applied to evaluate FAM201A expression in lung cancer tissues. The impact of high FAM201A expression on the overall survival in patients with lung cancer was tested using the log-rank test. The relevance between aberrant FAM201A and clinicopathological characteristics in patients with lung cancer was analyzed using the Chi-square tests. Cell proliferation was assayed using the Cell Counting Kit-8 (CCK-8) and a transwell assay, and the mice xenograft models were applied to determine the promoting effects of FAM201A on LSCC in vitro and in vivo. The underlying regulatory mechanism was explored through RNA transfection, qPCR, and Western blotting. The correlation between ATP-binding cassette transporter E1 (ABCE1) and FAM201A expression was verified using Spearman's correlation coefficient. RESULTS FAM201A is aberrantly elevated in tissues from patients with non-small cell lung cancer. High levels of FAM201A expression were more likely to present in patients with squamous type, M1 stage, and inferior overall survival. Differential expression was found between non-metastatic and metastatic squamous carcinoma, but not in adenocarcinoma. FAM201A knockdown inhibits cell proliferation, migration, and invasion of LSCC cells in vitro, and represses tumor growth in vivo. Furthermore, ABCE1 in LSCC cells was downregulated by silencing FAM201A. The tissue level of ABCE1 was positively correlated with FAM201A expression in patients with LSCC. CONCLUSIONS FAM201A may markedly induce migration and invasion of LSCC, resulting in the M1 stage and poor survival. These findings suggest the FAM201A-ABCE1 axis as a novel therapeutic target in LSCC.
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Affiliation(s)
- W He
- Department of Thoracic Surgery, General Hospital of Ningxia Medical University, Yinchuan, China.
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Lin B, Chen Z, Song P, Liu H, Kang L, Di J, Luo X, Chen L, Xue C, Ma B, Yang G, Tang J, Zhou J, Liu Z, Liu F. A Tandem 0D/2D/2D NbS 2 Quantum Dot/Nb 2 O 5 Nanosheet/g-C 3 N 4 Flake System with Spatial Charge-Transfer Cascades for Boosting Photocatalytic Hydrogen Evolution. Small 2020; 16:e2003302. [PMID: 32969149 DOI: 10.1002/smll.202003302] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/20/2020] [Indexed: 06/11/2023]
Abstract
The relatively high recombination rate of charges remains the most critical limiting factor for solar-driven water splitting for hydrogen generation. Herein, a tandem 0D/2D/2D NbS2 quantum dot/Nb2 O5 nanosheet/g-C3 N4 flake (NSNOCN) system is designed. Owing to the unique spatial-arrangement and elaborate morphology of 0D NbS2 , 2D Nb2 O5 , and 2D g-C3 N4 in the newly designed NSNOCN, plenty of spatial charge-transfer cascades from g-C3 N4 to NbS2 via Nb2 O5 are formed to accelerate separation and transfer of charges significantly, thus contributing to a high photocatalytic H2 generation rate of 13.99 mmol h-1 g-1 (an apparent quantum efficiency of 10.8% at 420 nm), up to 107.6 and 43.7 times by contrast with that of g-C3 N4 and Nb2 O5 , respectively. This work can provide a new platform in the design of artificial photocatalytic systems with high charge-transfer efficiency.
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Affiliation(s)
- Bo Lin
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Zihao Chen
- XJTU-Oxford International Joint Laboratory for Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Pin Song
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Haishi Liu
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Lixing Kang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Jun Di
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Xiao Luo
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Longqing Chen
- Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China
| | - Chao Xue
- State Centre for International Cooperation on Designer Low-Carbon and Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China
| | - Bowen Ma
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Guidong Yang
- XJTU-Oxford International Joint Laboratory for Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Jun Tang
- Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China
| | - Jiadong Zhou
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Zheng Liu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Fucai Liu
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
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Abstract
During the coronavirus disease 2019 (COVID-19) pandemic, there is an important risk of infection in health care workers, including oral health care workers (OHCWs), due to the characteristics of dental practice. In this retrospective study, data pertaining to the 31 OHCWs diagnosed with COVID-19 in Wuhan, Hubei Province, were retrieved and analyzed. Questionnaires were administered to the subjects over the Internet and telephone. Clinical and epidemiological characteristics and information on the use of personal protective equipment (PPE) were collected. There were 22 females and 9 males, with a median age of 39 y. Although the severity of most cases of COVID-19 (93.5%) was mild or moderate, 1 case was severe, and another case was critical, resulting in death. Fever was the main first symptom of COVID-19, followed by fatigue and myalgia. Most of the OHCWs routinely used PPE such as medical masks, gloves, caps, and work clothes while performing clinical work. N95 or KN95 masks were rarely available because of the scarcity of PPE during the outbreak. Nineteen OHCWs reported a contact history, among whom 7 worked in a fever clinic, 5 reported contact with dental patients suspected of having COVID-19, and 7 reported contact with family members with COVID-19–related symptoms at least 1 d earlier. Our findings indicated that there were few clusters of COVID-19 in dental settings. Since the outbreak, the Hospital of Stomatology, Wuhan University, has provided emergency dental treatment, and none of their staff were infected while providing dental service, which indicates that comprehensive measures such as the use of advanced PPE and environmental disinfection can prevent cross-infection in dental practice. The analysis of the procedures followed during the emergency treatments indicated that OHCWs preferred to recommend conservative treatment to patients, suggesting that attention should be paid to the psychological impact of COVID-19 on dental practitioners.
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Affiliation(s)
- L Meng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - B Ma
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Y Cheng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Z Bian
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China.,Center for Evidence-Based Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
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Qiu J, Wang D, Qu H, Yao B, Ma B, Ye L, Zhong W, Wang Q, Xie W. 657P Mutation landscape of genes involved in DNA-damage repair pathway among Chinese patients with prostate cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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47
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Gao QF, Niu XT, Ma B, Li ZB, Zhang WF, Guan H. [Effects of pedicled anterolateral thigh flaps in repairing skin and soft tissue defects in perineal region caused by necrotizing fasciitis]. Zhonghua Shao Shang Za Zhi 2020; 36:738-742. [PMID: 32829616 DOI: 10.3760/cma.j.cn501120-20190528-00257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effects of pedicled anterolateral thigh flaps in repairing skin and soft tissue defects in perineal region caused by necrotizing fasciitis. Methods: From March 2014 to December 2018, 6 patients with skin and soft tissue defects in perineal region caused by necrotizing fasciitis were admitted to Department of Burns of Hanzhong Central Hospital (hereinafter referred to as our hospital). Two female patients had labia major defects and 4 male patients had scrotum defects, with age of 43-68 years. The areas of skin and soft tissue defects after debridement were 4%-8% total body surface area. The wounds in non-joint and non-functional area were repaired with free split-thickness skin grafts from medial femoral region, and the residual wounds areas in perineal region after repair were 10 cm×4 cm-22 cm×10 cm, which were repaired with pedicled anterolateral thigh flaps, with area of 12 cm×5 cm-24 cm×12 cm. The secondary wounds in the donor sites were sutured directly or repaired with free split-thickness skin grafts from medial thigh on the same or opposite side of the wounds. The bacterial culture result of wound exudate, drug sensitivity test result, and blood bacterial culture result on admission were recorded. The postoperative flap survival was observed. The length of hospital stay, debridement times, and antibiotics use time were recorded. The flap swelling condition was observed to evaluate whether flap thinning operation was necessary, the sensory recovery of the flap and hip joint activity were evaluated, and the scrotum function of male patients was evaluated by urologist in our hospital during follow-up. Results: The bacterial culture results of wound exudate in 5 patients on admission showed Escherichia coli with 4 of them having the same bacteria and the other one having methicillin-resistant Staphylococcus aureus detected in their blood samples. All the flaps survived in 6 patients after the operation, with total length of hospital stay of (22±5) d, debridement of 3-5 times, and antibiotics use time of (13±3) d. During follow-up of 3 to 6 months after the operation, the flaps were slightly bloated in 2 patients, and the flap thinning operation was performed 6 months after wound repair. The sensory function recovered to normal in 2 flaps of patients with anterolateral femoral cutaneous nerve, and the superficial sensory function in the other flaps of patients recovered in different degrees.The hip joint activity was close to normal in all the patients, and the scrotum function was normal in 4 male patients. Conclusions: The pedicled anterolateral thigh flap showed good effects in repairing skin and soft tissue defects on perineal region caused by necrotizing fasciitis, with good appearance and function after operation, and the method is simple, safe, and easy to apply.
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Affiliation(s)
- Q F Gao
- Department of Burns, Hanzhong Central Hospital, Hanzhong 723000, China
| | - X T Niu
- Department of Burns, Hanzhong Central Hospital, Hanzhong 723000, China
| | - B Ma
- Department of Burns, Hanzhong Central Hospital, Hanzhong 723000, China
| | - Z B Li
- Department of Burns, Hanzhong Central Hospital, Hanzhong 723000, China
| | - W F Zhang
- Department of Burns, Hanzhong Central Hospital, Hanzhong 723000, China
| | - H Guan
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
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Boutin E, Merakeb L, Ma B, Boudy B, Wang M, Bonin J, Anxolabéhère-Mallart E, Robert M. Molecular catalysis of CO 2 reduction: recent advances and perspectives in electrochemical and light-driven processes with selected Fe, Ni and Co aza macrocyclic and polypyridine complexes. Chem Soc Rev 2020; 49:5772-5809. [PMID: 32697210 DOI: 10.1039/d0cs00218f] [Citation(s) in RCA: 134] [Impact Index Per Article: 33.5] [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]
Abstract
Earth-abundant Fe, Ni, and Co aza macrocyclic and polypyridine complexes have been thoroughly investigated for CO2 electrochemical and visible-light-driven reduction. Since the first reports in the 1970s, an enormous body of work has been accumulated regarding the two-electron two-proton reduction of the gas, along with mechanistic and spectroscopic efforts to rationalize the reactivity and establish guidelines for structure-reactivity relationships. The ability to fine tune the ligand structure and the almost unlimited possibilities of designing new complexes have led to highly selective and efficient catalysts. Recent efforts toward developing hybrid systems upon combining molecular catalysts with conductive or semi-conductive materials have converged to high catalytic performances in water solutions, to the inclusion of these catalysts into CO2 electrolyzers and photo-electrochemical devices, and to the discovery of catalytic pathways beyond two electrons. Combined with the continuous mechanistic efforts and new developments for in situ and in operando spectroscopic studies, molecular catalysis of CO2 reduction remains a highly creative approach.
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Affiliation(s)
- E Boutin
- Université de Paris, Laboratoire d'Electrochimie Moléculaire, CNRS, F-75006 Paris, France.
| | - L Merakeb
- Université de Paris, Laboratoire d'Electrochimie Moléculaire, CNRS, F-75006 Paris, France.
| | - B Ma
- Université de Paris, Laboratoire d'Electrochimie Moléculaire, CNRS, F-75006 Paris, France.
| | - B Boudy
- Université de Paris, Laboratoire d'Electrochimie Moléculaire, CNRS, F-75006 Paris, France.
| | - M Wang
- Université de Paris, Laboratoire d'Electrochimie Moléculaire, CNRS, F-75006 Paris, France.
| | - J Bonin
- Université de Paris, Laboratoire d'Electrochimie Moléculaire, CNRS, F-75006 Paris, France.
| | - E Anxolabéhère-Mallart
- Université de Paris, Laboratoire d'Electrochimie Moléculaire, CNRS, F-75006 Paris, France.
| | - M Robert
- Université de Paris, Laboratoire d'Electrochimie Moléculaire, CNRS, F-75006 Paris, France. and Institut Universitaire de France (IUF), F-75005 Paris, France
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He C, Lv X, Huang C, Angeletti PC, Hua G, Dong J, Zhou J, Wang Z, Ma B, Chen X, Lambert PF, Rueda BR, Davis JS, Wang C. A Human Papillomavirus-Independent Cervical Cancer Animal Model Reveals Unconventional Mechanisms of Cervical Carcinogenesis. Cell Rep 2020; 26:2636-2650.e5. [PMID: 30840887 PMCID: PMC6812687 DOI: 10.1016/j.celrep.2019.02.004] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 12/30/2018] [Accepted: 02/01/2019] [Indexed: 01/17/2023] Open
Abstract
HPV infections are common in healthy women and only rarely cause cervical cancer, suggesting that individual genetic susceptibility may play a critical role in the establishment of persistent HPV infection and the development of cervical cancer. Here, we provide convincing in vitro and in vivo evidence showing that differential expression and activation of YAP1 oncogene determine individual susceptibility to HPV infection and cervical carcinogenesis. We found that hyperactivation of YAP1 in mouse cervical epithelium was sufficient to induce invasive cervical cancer. Cervical epithelial cell-specific HPV16 E6/E7 and YAP1 double-knockin mouse model demonstrated that high-risk HPV synergized with hyperactivated YAP1 to promote the initiation and progression of cervical cancer. Our mechanistic studies indicated that hyperactivation of YAP1 in cervical epithelial cells facilitated HPV infection by increasing the putative HPV receptor molecules and disrupting host cell innate immunity. Our finding reveals an unconventional mechanism for cervical carcinogenesis. HPV infections are common in healthy women and only rarely cause cervical cancer. He et al. provide evidence that hyperactivation of the YAP1 oncogene can drive cervical cancer initiation and progression. YAP1 hyperactivation in cervical epithelial cells increases the HPV receptors and disrupts host cell innate immunity, facilitating HPV infection.
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Affiliation(s)
- Chunbo He
- Vincent Center for Reproductive Biology, Vincent Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA; Olson Center for Women's Health, Department of Obstetrics & Gynecology, University of Nebraska Medical Center, Omaha, NE 68198, USA; College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xiangmin Lv
- Vincent Center for Reproductive Biology, Vincent Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA; Olson Center for Women's Health, Department of Obstetrics & Gynecology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Cong Huang
- Vincent Center for Reproductive Biology, Vincent Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Peter C Angeletti
- Nebraska Center for Virology, School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
| | - Guohua Hua
- Olson Center for Women's Health, Department of Obstetrics & Gynecology, University of Nebraska Medical Center, Omaha, NE 68198, USA; College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jixin Dong
- Fred & Pamela Cancer Center, University of Nebraska Medical Center, Omaha NE 68198, USA
| | - Jin Zhou
- Olson Center for Women's Health, Department of Obstetrics & Gynecology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Department of Obstetrics and Gynecology, The Eighth Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518033, China
| | - Zhengfeng Wang
- Olson Center for Women's Health, Department of Obstetrics & Gynecology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Department of Hepatobiliary Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 45001 China
| | - Bowen Ma
- Olson Center for Women's Health, Department of Obstetrics & Gynecology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Xingcheng Chen
- Fred & Pamela Cancer Center, University of Nebraska Medical Center, Omaha NE 68198, USA
| | - Paul F Lambert
- McArdle Laboratory for Cancer Research, Department of Oncology, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Bo R Rueda
- Vincent Center for Reproductive Biology, Vincent Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - John S Davis
- Olson Center for Women's Health, Department of Obstetrics & Gynecology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Omaha Veterans Affairs Medical Center, Omaha, NE 68105, USA
| | - Cheng Wang
- Vincent Center for Reproductive Biology, Vincent Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA; Olson Center for Women's Health, Department of Obstetrics & Gynecology, University of Nebraska Medical Center, Omaha, NE 68198, USA.
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Kou X, Ma B, Zhang R, Cai M, Huang Y, Yang Y. Properties and mechanism for selective adsorption of Au(iii) on an ionic liquid adsorbent by grafting N-methyl imidazole onto chloromethylated polystyrene beads. RSC Adv 2020; 10:20338-20348. [PMID: 35520412 PMCID: PMC9054204 DOI: 10.1039/d0ra03504a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 04/19/2020] [Accepted: 05/17/2020] [Indexed: 11/24/2022] Open
Abstract
To recover Au(iii) from an acidic chloride-containing solution efficiently, an ionic liquid absorbent (CMPS-IL) was synthesized by grafting N-methyl imidazole onto chloromethylated polystyrene beads (CMPS). The adsorption capacity, selectivity, and reusability were systematically evaluated by a series of adsorption experiments. The maximum adsorption capacity reached up to 516.5 mg g−1 at 318 K. The adsorbent can selectively recover Au(iii) from binary system solutions with a higher separation factor βAu/M (104–106). Moreover, the adsorption–desorption cycles (7 cycles) showed that the CMPS-IL maintained a stable adsorption performance and high adsorption efficiency. Finally, the adsorption mechanism of CMPS-IL for Au(iii) was investigated by SEM, TEM, XPS, and FT-IR, then proposed with a combination of electrostatic interactions and d–π interaction between imidazolium and AuCl4−. This study provides an easily-prepared and economical adsorbent for Au(iii) with high selectivity and large adsorption capacity to boost its practical applications. The synthesis and adsorption properties for Au(iii) of CMPS-IL synthesized by grafting N-methyl imidazole onto chloromethylated polystyrene beads (CMPS).![]()
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Affiliation(s)
- Xin Kou
- The Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, School of Chemistry and Chemical Engineering, Lanzhou University Lanzhou 730000 P. R. China
| | - Bowen Ma
- The Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, School of Chemistry and Chemical Engineering, Lanzhou University Lanzhou 730000 P. R. China
| | - Rui Zhang
- The Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, School of Chemistry and Chemical Engineering, Lanzhou University Lanzhou 730000 P. R. China
| | - Miaomiao Cai
- The Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, School of Chemistry and Chemical Engineering, Lanzhou University Lanzhou 730000 P. R. China
| | - Yong Huang
- The Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, School of Chemistry and Chemical Engineering, Lanzhou University Lanzhou 730000 P. R. China
| | - Ying Yang
- The Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, School of Chemistry and Chemical Engineering, Lanzhou University Lanzhou 730000 P. R. China
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