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Mubarik S, Luo L, Naeem S, Mubarak R, Iqbal M, Hak E, Yu C. Epidemiology and demographic patterns of cardiovascular diseases and neoplasms deaths in Western Europe: a 1990-2019 analysis. Public Health 2024; 231:187-197. [PMID: 38703493 DOI: 10.1016/j.puhe.2024.04.003] [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: 01/23/2024] [Revised: 03/25/2024] [Accepted: 04/03/2024] [Indexed: 05/06/2024]
Abstract
OBJECTIVES Cardiovascular diseases (CVDs) and neoplasms have been considered as public health concerns worldwide. This study aimed to estimate the epidemiological patterns of death burden on CVDs and neoplasms and its attributable risk factors in Western Europe from 1990 to 2019 to discuss the potential causes of the disparities. STUDY DESIGN AND METHODS We collected data on CVDs and neoplasms deaths in 24 Western European countries from the Global Burden of Disease Study. We analyzed patterns by age, sex, country, and associated risk factors. The results include percentages of total deaths, age-standardized death rates per 100,000 population, and uncertainty intervals (UIs). Time trends were assessed using annual percent change. RESULTS In 2019, CVDs and neoplasms accounted for 33.54% and 30.15% of Western Europe's total deaths, with age-standardized death rates of 128.05 (95% UI: 135.37, 113.02) and 137.51 (95% UI: 142.54, 128.01) per 100,000. Over 1990-2019, CVDs rates decreased by 54.97%, and neoplasms rates decreased by 19.54%. Top CVDs subtypes were ischemic heart disease and stroke; top cancers for neoplasms were lung and colorectal. Highest CVD death burdens were in Finland, Greece, Austria; neoplasm burdens in Monaco, San Marino, Andorra. The major risk factors were metabolic (CVDs) and behavioral (neoplasms). Gender differences revealed higher CVDs death burden in males, while neoplasms burden varied by risk factors and age groups. CONCLUSION In 2019, CVDs and neoplasms posed significant health risks in Western Europe, with variations in death burdens and risk factors across genders, age groups, and countries. Future interventions should target vulnerable groups to lessen the impact of CVDs and neoplasms in the region.
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Affiliation(s)
- S Mubarik
- PharmacoTherapy, -Epidemiology and -Economics, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, the Netherlands; Department of Epidemiology and Biostatistics, School of Public Health, Wuhan University, Wuhan 430071 China.
| | - L Luo
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China.
| | - S Naeem
- Department of Preventive Medicine, School of Public Health, Wuhan University, Wuhan, China.
| | - R Mubarak
- Department of Economics, PMAS, Arid Agriculture University, Rawalpindi, Pakistan.
| | - M Iqbal
- Department of Psychology, School of Philosophy, Wuhan University, Wuhan, China.
| | - E Hak
- PharmacoTherapy, -Epidemiology and -Economics, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, the Netherlands.
| | - C Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Wuhan University, Wuhan 430071 China.
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Luo L, Wang Z, Wang X, Gao J, Zheng A, Duan X. Fluorine-18 prostate-specific membrane antigen-1007-avid indeterminate bone lesions in prostate cancer: clinical and PET/CT features to predict outcomes and prognosis. Clin Radiol 2024; 79:346-353. [PMID: 38216370 DOI: 10.1016/j.crad.2023.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/29/2023] [Accepted: 12/11/2023] [Indexed: 01/14/2024]
Abstract
AIM To determine clinical and fluorine-18 prostate-specific membrane antigen-1007 (18F-PSMA-1007) integrated positron-emission tomography (PET)/computed tomography (CT) features that could be used to interpret indeterminate bone lesions (IBLs) and assess the prognosis of prostate cancer (PCa) in patients with IBLs. MATERIALS AND METHODS Consecutive patients who underwent PSMA PET/CT were analysed retrospectively. IBLs were identified as benign or malignant based on follow-up imaging and clinical management. Lesion- and patient-based assessments were performed to define features predictive of bone lesion results and determine clinical risk. Patients' prognosis was analysed based on clinical characteristics, including prostate-specific antigen (PSA) and alkaline phosphatase (ALP), respectively. RESULTS A total of 105 patients (mean age ± SD, 72.1 ± 8 years) were evaluated and 158 IBLs were identified. Fifty-three (33.5%), 36 (22.8%), and 69 (43.7%) IBLs were benign, malignant, and equivocal, respectively. Variables including location, maximum standard uptake value (SUVmax), and lymph node metastases (LNM) were related to the benignancy or malignancy of IBLs (p=0.046, p<0.001 and p<0.001, respectively). Regression analysis indicated that LNM, SUVmax, and location of IBLs could be predictors of lesion interpretation (p<0.001, p=0.002 and p=0.035). Patients with benign IBLs experienced the most considerable decreases in PSA and ALP levels. CONCLUSIONS LNM, SUVmax, and location may contribute to IBL interpretation. A rapid decrease in PSA and ALP levels might suggest a better prognosis for patients with benign IBLs.
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Affiliation(s)
- L Luo
- PET/CT Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Z Wang
- PET/CT Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - X Wang
- PET/CT Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J Gao
- PET/CT Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - A Zheng
- PET/CT Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - X Duan
- PET/CT Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
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Kirpich JS, Luo L, Nelson MR, Agarwala N, Xu W, Hastings G. Is the A -1 Pigment in Photosystem I Part of P700? A (P700 +-P700) FTIR Difference Spectroscopy Study of A -1 Mutants. Int J Mol Sci 2024; 25:4839. [PMID: 38732056 DOI: 10.3390/ijms25094839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
The involvement of the second pair of chlorophylls, termed A-1A and A-1B, in light-induced electron transfer in photosystem I (PSI) is currently debated. Asparagines at PsaA600 and PsaB582 are involved in coordinating the A-1B and A-1A pigments, respectively. Here we have mutated these asparagine residues to methionine in two single mutants and a double mutant in PSI from Synechocystis sp. PCC 6803, which we term NA600M, NB582M, and NA600M/NB582M mutants. (P700+-P700) FTIR difference spectra (DS) at 293 K were obtained for the wild-type and the three mutant PSI samples. The wild-type and mutant FTIR DS differ considerably. This difference indicates that the observed changes in the (P700+-P700) FTIR DS cannot be due to only the PA and PB pigments of P700. Comparison of the wild-type and mutant FTIR DS allows the assignment of different features to both A-1 pigments in the FTIR DS for wild-type PSI and assesses how these features shift upon cation formation and upon mutation. While the exact role the A-1 pigments play in the species we call P700 is unclear, we demonstrate that the vibrational modes of the A-1A and A-1B pigments are modified upon P700+ formation. Previously, we showed that the A-1 pigments contribute to P700 in green algae. In this manuscript, we demonstrate that this is also the case in cyanobacterial PSI. The nature of the mutation-induced changes in algal and cyanobacterial PSI is similar and can be considered within the same framework, suggesting a universality in the nature of P700 in different photosynthetic organisms.
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Affiliation(s)
- Julia S Kirpich
- Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30303, USA
| | - Lujun Luo
- Department of Chemistry, University of Louisiana at Lafayette, Lafayette, LA 70504, USA
| | - Michael R Nelson
- Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30303, USA
| | - Neva Agarwala
- Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30303, USA
| | - Wu Xu
- Department of Chemistry, University of Louisiana at Lafayette, Lafayette, LA 70504, USA
| | - Gary Hastings
- Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30303, USA
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Luo L, Martin AP, Tandoh EK, Chistoserdov A, Slipchenko LV, Savikhin S, Xu W. Impact of Peripheral Hydrogen Bond on Electronic Properties of the Primary Acceptor Chlorophyll in the Reaction Center of Photosystem I. Int J Mol Sci 2024; 25:4815. [PMID: 38732034 DOI: 10.3390/ijms25094815] [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: 03/23/2024] [Revised: 04/18/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
Photosystem I (PS I) is a photosynthetic pigment-protein complex that absorbs light and uses the absorbed energy to initiate electron transfer. Electron transfer has been shown to occur concurrently along two (A- and B-) branches of reaction center (RC) cofactors. The electron transfer chain originates from a special pair of chlorophyll a molecules (P700), followed by two chlorophylls and one phylloquinone in each branch (denoted as A-1, A0, A1, respectively), converging in a single iron-sulfur complex Fx. While there is a consensus that the ultimate electron donor-acceptor pair is P700+A0-, the involvement of A-1 in electron transfer, as well as the mechanism of the very first step in the charge separation sequence, has been under debate. To resolve this question, multiple groups have targeted electron transfer cofactors by site-directed mutations. In this work, the peripheral hydrogen bonds to keto groups of A0 chlorophylls have been disrupted by mutagenesis. Four mutants were generated: PsaA-Y692F; PsaB-Y667F; PsaB-Y667A; and a double mutant PsaA-Y692F/PsaB-Y667F. Contrary to expectations, but in agreement with density functional theory modeling, the removal of the hydrogen bond by Tyr → Phe substitution was found to have a negligible effect on redox potentials and optical absorption spectra of respective chlorophylls. In contrast, Tyr → Ala substitution was shown to have a fatal effect on the PS I function. It is thus inferred that PsaA-Y692 and PsaB-Y667 residues have primarily structural significance, and their ability to coordinate respective chlorophylls in electron transfer via hydrogen bond plays a minor role.
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Affiliation(s)
- Lujun Luo
- Department of Chemistry, University of Louisiana at Lafayette, Lafayette, LA 70504, USA
| | - Antoine P Martin
- Department of Physics, Purdue University, West Lafayette, IN 47907, USA
| | - Elijah K Tandoh
- Department of Chemistry, University of Louisiana at Lafayette, Lafayette, LA 70504, USA
| | - Andrei Chistoserdov
- Department of Biology, University of Louisiana at Lafayette, Lafayette, LA 70504, USA
| | | | - Sergei Savikhin
- Department of Physics, Purdue University, West Lafayette, IN 47907, USA
| | - Wu Xu
- Department of Chemistry, University of Louisiana at Lafayette, Lafayette, LA 70504, USA
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Huang C, Luo L, Mootz M, Shang J, Man P, Su L, Perakis IE, Yao YX, Wu A, Wang J. Extreme terahertz magnon multiplication induced by resonant magnetic pulse pairs. Nat Commun 2024; 15:3214. [PMID: 38615025 PMCID: PMC11016094 DOI: 10.1038/s41467-024-47471-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 03/26/2024] [Indexed: 04/15/2024] Open
Abstract
Nonlinear interactions of spin-waves and their quanta, magnons, have emerged as prominent candidates for interference-based technology, ranging from quantum transduction to antiferromagnetic spintronics. Yet magnon multiplication in the terahertz (THz) spectral region represents a major challenge. Intense, resonant magnetic fields from THz pulse-pairs with controllable phases and amplitudes enable high order THz magnon multiplication, distinct from non-resonant nonlinearities such as the high harmonic generation by below-band gap electric fields. Here, we demonstrate exceptionally high-order THz nonlinear magnonics. It manifests as 7th-order spin-wave-mixing and 6th harmonic magnon generation in an antiferromagnetic orthoferrite. We use THz two-dimensional coherent spectroscopy to achieve high-sensitivity detection of nonlinear magnon interactions up to six-magnon quanta in strongly-driven many-magnon correlated states. The high-order magnon multiplication, supported by classical and quantum spin simulations, elucidates the significance of four-fold magnetic anisotropy and Dzyaloshinskii-Moriya symmetry breaking. Moreover, our results shed light on the potential quantum fluctuation properties inherent in nonlinear magnons.
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Affiliation(s)
- C Huang
- Ames National Laboratory, Ames, IA, 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, IA, 50011, USA
| | - L Luo
- Ames National Laboratory, Ames, IA, 50011, USA
| | - M Mootz
- Ames National Laboratory, Ames, IA, 50011, USA
| | - J Shang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - P Man
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - L Su
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - I E Perakis
- Department of Physics, University of Alabama at Birmingham, Birmingham, AL, 35294-1170, USA
| | - Y X Yao
- Ames National Laboratory, Ames, IA, 50011, USA
| | - A Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - J Wang
- Ames National Laboratory, Ames, IA, 50011, USA.
- Department of Physics and Astronomy, Iowa State University, Ames, IA, 50011, USA.
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Dong XY, Zou YX, Lyu FF, Yang WH, Zhang HL, Niu YH, Wang HJ, Guo R, Wang X, Li L, Lin ZH, Luo L, Lu DL, Lu Q, Liu HM, Chen LN. [A multicenter study on respiratory pathogen detection with Mycoplasma pneumoniae pneumonia in children]. Zhonghua Er Ke Za Zhi 2024; 62:310-316. [PMID: 38527500 DOI: 10.3760/cma.j.cn112140-20240117-00054] [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] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Objective: To analyze the status of respiratory pathogen detection and the clinical features in children with Mycoplasma pneumoniae pneumonia (MPP). Methods: A prospective, multicenter study was conducted to collect clinical data, including medical history, laboratory examinations and multiplex PCR tests of children diagnosed with MPP from 4 hospitals in China between November 15th and December 20th, 2023. The multiplex PCR results and clinical characteristics of MPP children in different regions were analyzed. The children were divided into severe and mild groups according to the severity of the disease. Patients in the severe group were further divided into Mycoplasma pneumoniae (MP) alone and Multi-pathogen co-detection groups based on whether other pathogens were detected besides MP, to analyze the influence of respiratory pathogen co-detection rate on the severity of the disease. Mann-Whitney rank sum test and Chi-square test were used to compare data between independent groups. Results: A total of 298 children, 136 males and 162 females, were enrolled in this study, including 204 children in the severe group with an onset age of 7.0 (6.0, 8.0) years, and 94 children in the mild group with an onset age of 6.5 (4.0, 7.8) years. The level of C-reactive protein, D-dimer, lactic dehydrogenase (LDH) were significantly higher (10.0 (5.0, 18.0) vs. 5.0 (5.0, 7.5) mg/L, 0.6 (0.4, 1.1) vs. 0.5 (0.3, 0.6) mg/L, 337 (286, 431) vs. 314 (271, 393) U/L, Z=2.02, 2.50, 3.05, all P<0.05), and the length of hospitalization was significantly longer in the severe group compared with those in mild group (6.0 (6.0, 7.0) vs. 5.0 (4.0, 6.0) d, Z=4.37, P<0.05). The time from onset to admission in severe MPP children was significantly shorter than that in mild MPP children (6.0 (5.0, 9.5) vs. 9.0 (7.0, 13.0) d, Z=2.23, P=0.026). All patients completed the multiplex PCR test, with 142 cases (47.7%) MPP children detected with 21 pathogens including adenovirus 25 cases (8.4%), human coronavirus 23 cases (7.7%), rhinovirus 21 cases (7.0%), Streptococcus pneumoniae 21 cases (7.0%), influenza A virus 18 cases (6.0%). The pathogens with the highest detection rates in Tianjin, Shanghai, Wenzhou and Chengdu were Staphylococcus aureus at 10.7% (8/75), adenovirus at 13.0% (10/77), adenovirus at 15.3% (9/59), and both rhinovirus and Haemophilus influenzae at 11.5% (10/87) each. The multi-pathogen co-detection rate in severe MPP children was significantly higher than that in mild MPP group (52.9% (108/204) vs. 36.2% (34/94), χ²=10.62,P=0.005). Among severe MPP children, there are 89 cases in the multi-pathogen co-detection group and 73 cases in the simple MPP group. The levels of LDH, D-dimer and neutrophil counts in the multi-pathogen co-detection group were significantly higher than those in the simple MPP group (348 (284, 422) vs. 307 (270, 358) U/L, 0.8 (0.5, 1.5) vs. 0.6 (0.4, 1.0) mg/L, 4.99 (3.66, 6.89)×109 vs. 4.06 (2.91, 5.65)×109/L, Z=5.17, 4.99, 6.11, all P<0.05). Conclusions: The co-detection rate of respiratory pathogens, LDH and D-dimer in children with severe MPP were higher than those with mild MPP. Among severe MPP children the stress response of children in co-detection group was more serious than that of children with simple MPP.
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Affiliation(s)
- X Y Dong
- Department of Pulmonology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - Y X Zou
- Department of Pulmonology, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Machang District, Tianjin 300074, China
| | - F F Lyu
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - W H Yang
- Department of Pediatric Pulmonology and Immunology, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - H L Zhang
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Y H Niu
- Department of Pulmonology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - H J Wang
- Department of Pulmonology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - R Guo
- Department of Pulmonology, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Machang District, Tianjin 300074, China
| | - X Wang
- Department of Pulmonology, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Machang District, Tianjin 300074, China
| | - L Li
- Department of Pulmonology, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Machang District, Tianjin 300074, China
| | - Z H Lin
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - L Luo
- Department of Pediatric Pulmonology, Yaan People's Hospital, Yaan 625000, China
| | - D L Lu
- Department of Pediatric Pulmonology and Immunology, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Q Lu
- Department of Pulmonology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - H M Liu
- Department of Pediatric Pulmonology and Immunology, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - L N Chen
- Department of Pediatric Pulmonology and Immunology, West China Second University Hospital, Sichuan University, Chengdu 610041, China
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Chen T, Zheng B, Yang P, Zhang Z, Su Y, Chen Y, Luo L, Luo D, Lin Y, Xie R, Zeng L. The Incidence and Prognosis Value of Perineural Invasion in Rectal Carcinoma: From Meta-Analyses and Real-World Clinical Pathological Features. Clin Oncol (R Coll Radiol) 2023; 35:e611-e621. [PMID: 37263883 DOI: 10.1016/j.clon.2023.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 04/13/2023] [Accepted: 05/16/2023] [Indexed: 06/03/2023]
Abstract
AIMS Perineural invasion (PNI) is a special type of metastasis of several cancers and has been reported as being a factor for poor prognosis in colorectal carcinoma. However, investigations of PNI in only rectal cancer and a comprehensive analysis combining meta-analyses with real-world case studies remain lacking. MATERIALS AND METHODS First, articles from 2000 to 2020 concerning the relationship between PNI and rectal cancer prognoses and clinical features were meta-analysed. Subsequently, we carried out a retrospective analysis of 312 rectal cancer cases that underwent radical surgery in the real world. The incidence of PNI and the relationship between PNI and prognosis, as well as clinicopathological factors, were investigated. RESULTS The incidence of PNI was 23.09% and 33.01% in the meta-analysis and clinical cases, respectively. PNI occurred as early as stage I (2.94%). Moreover, neoadjuvant therapy significantly reduced the PNI-positive rate (20.34% versus 26.54%). Both meta-analysis and real-world clinical case studies suggested that PNI-positive patients had poorer prognoses than PNI-negative patients. We established an effective risk model consisting of T stage, differentiation and lymphovascular invasion to predict PNI in rectal cancer. CONCLUSION PNI is a poor prognostic factor for rectal cancer and could occur even in stage I. Additionally, neoadjuvant therapy could sufficiently reduce the PNI-positive rate. T stage, lymphovascular invasion and differentiation grade were independent risk factors for PNI and the risk model that included these factors could predict the probability of PNI.
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Affiliation(s)
- T Chen
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - B Zheng
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - P Yang
- Department of Pathology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Z Zhang
- Department of Radiology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Y Su
- Department of General Surgery, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Y Chen
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - L Luo
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - D Luo
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Y Lin
- Department of Pathology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - R Xie
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China.
| | - L Zeng
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China.
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8
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Yang L, Luo L, Zhang YT, Shi DD, Ci ZG, Xiao BS, Yang SQ. [Clinical implications of thrombolytic therapy for patients with acute intermediate-high risk pulmonary embolism in Tibet plateau, China]. Zhonghua Jie He He Hu Xi Za Zhi 2023; 46:924-929. [PMID: 37670647 DOI: 10.3760/cma.j.cn112147-20230413-00172] [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] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
At present, clinical studies and case reports of systemic thrombolytic therapy for patients with acute pulmonary embolism in Tibet Plateau are very rare. There is little understanding of the risk factors, clinical characteristics, and thrombolytic therapy for patients with acute pulmonary embolism at intermediate-high risk in Tibet Plateau. In this paper, we reported the data of 4 patients with acute intermediate-high risk pulmonary embolism treated with thrombolytic therapy in Lhasa People's Hospital. The demographic characteristics, clinical manifestations, treatment, and outcomes were analyzed. We summarized the clinical features and raised scientific issues. We aimed to provide basic data to improve the standardized diagnosis and treatment of acute pulmonary embolism in plateau, and to point out the direction of future clinical research in this field.
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Affiliation(s)
- L Yang
- Department of Respiratory and Critical Care Medicine, Lhasa People's Hospital, Lhasa Tibet, 850000, China
| | - L Luo
- Department of Respiratory and Critical Care Medicine, Lhasa People's Hospital, Lhasa Tibet, 850000, China
| | - Y T Zhang
- Department of Respiratory and Critical Care Medicine, Lhasa People's Hospital, Lhasa Tibet, 850000, China
| | - D D Shi
- Department of Respiratory and Critical Care Medicine, Lhasa People's Hospital, Lhasa Tibet, 850000, China
| | - Z G Ci
- Department of Respiratory and Critical Care Medicine, Lhasa People's Hospital, Lhasa Tibet, 850000, China
| | - B S Xiao
- Department of Respiratory and Critical Care Medicine, Lhasa People's Hospital, Lhasa Tibet, 850000, China
| | - S Q Yang
- Department of Pulmonary and Critical Care Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing Institute of Respiratory Medicine, Beijing 100020, China
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9
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Shui J, Luo L, Xiang YG, Shi GM, Wu JL, Pan JH. [Analysis of biofilm-forming ability and drug resistance for Hypervirulent Klebsiella pneumoniae]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1452-1457. [PMID: 37743308 DOI: 10.3760/cma.j.cn112150-20220929-00938] [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] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Investigate the biofilm-forming ability and drug resistance of Hypervirulent Klebsiella pneumoniae (HvKP) to provide scientific basis for the treatment of HvKP-infection. A total of 96 Klebsiella pneumoniae strains isolated from clinical infection specimens in Changsha Central Hospital from January to December in 2021 were retrospectively collected, and the clinical data of patients were collected. The string test preliminarily distinguished between HvKP and classic Klebsiella pneumoniae (CKP). The biofilm-forming ability of clinical strains of Klebsiella pneumoniae (KP) was determined by microplate method. The Vitek 2 Compact automatic microbial identification/drug sensitivity analysis system was used for bacterial identification and drug sensitivity test. The clinical data of patients, biofilm forming ability and drug resistance in the HvKP group and those in the CKP group were compared and analyzed. The results showed that a total of 20 strains of HvKP were isolated from 96 non-repetitive KP, and the detection rate was 20.8%. HvKP mainly come from respiratory specimens, up to 75.0%.The prevalence of hepatobiliary diseases and the infection rate of multiple sites in patients with HvKP infection were higher than those in patients with CKP infection, and the difference was statistically significant(χ2=5.184,7.488;P=0.023,0.006).There was no significant difference between the two groups in terms of gender, age, ICU admission, hypertension, diabetes, coronary heart disease, lung disease, urinary system disease, central nervous system disease and laboratory test indexes (all P>0.05).17 (85.0%) strains of HvKP can form biofilm, including 2 strains with weak biofilm-forming ability (10.0%), 10 strains with moderate biofilm-forming ability (50.0%) and 5 strains with strong biofilm-forming ability (25.0%). Among the 76 CKP, 71 (93.4%) could form biofilm, including 13 (17.1%) with weak biofilm-forming ability, 30(39.5%) with moderate biofilm-forming ability and 28 (36.8%) with strong biofilm-forming ability. There was no significant difference in biofilm-forming ability between HvKP and CKP (χ2=1.470,P=0.225).The overall resistance rate of HvKP was not high, but a multi-resistant HvKP resistant to carbapenems was found. The detection rate of multi-resistant HvKP (5.0%) was lower than that of multi-resistant CKP (28.9%), and the difference was statistically significant (χ2=4.984, P=0.026).The resistance rate of HvKP to piperacillin/tazobactam, aztreonam, ciprofloxacin, levofloxacin, ceftazidime, cefepime, tobramycin, minocycline, doxycycline, and compound sulfamethoxazole was lower than that of CKP, and the difference was statistically significant (all P<0.05). In conclusion, most of hypervirulent Klebsiella pneumoniae can form biofilm in this study, but the difference of biofilm-forming ability is not obvious compared with classic Klebsiella pneumoniae. HvKP maintains high sensitivity to commonly used antibacterial drugs, but the drug resistance monitoring of the bacteria cannot be ignored.
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Affiliation(s)
- J Shui
- Clinical Laboratory, Changsha Central Hospital, Changsha 410004, China
| | - L Luo
- Clinical Laboratory, Changsha Central Hospital, Changsha 410004, China
| | - Y G Xiang
- Clinical Laboratory, Changsha Central Hospital, Changsha 410004, China
| | - G M Shi
- Clinical Laboratory, Changsha Central Hospital, Changsha 410004, China
| | - J L Wu
- Clinical Laboratory, Changsha Central Hospital, Changsha 410004, China
| | - J H Pan
- Clinical Laboratory, Changsha Central Hospital, Changsha 410004, China
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Wang X, Luo L, Wang Y, An Z. Effect of Platelet Function Testing Guidance on Clinical Outcomes for Patients with Intracranial Aneurysms Undergoing Endovascular Treatment. AJNR Am J Neuroradiol 2023; 44:928-933. [PMID: 37414457 PMCID: PMC10411848 DOI: 10.3174/ajnr.a7923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/01/2023] [Indexed: 07/08/2023]
Abstract
BACKGROUND Platelet function testing has been proposed to better adjust individualized antiplatelet treatment for patients undergoing endovascular treatment for intracranial aneurysms. Its clinical significance needs to be comprehensively evaluated. PURPOSE Our aim was to evaluate the impact of platelet function testing-guided versus standard antiplatelet treatment in patients receiving endovascular treatment for intracranial aneurysms. DATA SOURCES PubMed, EMBASE, and the Cochrane Library of clinical trials were searched from inception until March 2023. STUDY SELECTION Eleven studies comprising 6199 patients were included. DATA ANALYSIS ORs with 95% CIs were calculated using random effects models. DATA SYNTHESIS The platelet function testing-guided group was associated with a decreased rate of symptomatic thromboembolic events (OR = 0.57; 95% CI, 0.42-0.76; I2 = 26%). No significant difference was found in asymptomatic thromboembolic events (OR = 1.07; 95% CI, 0.39-2.94; I2 = 48%), hemorrhagic events (OR = 0.71; 95% CI, 0.42-1.19; I2 = 34%), intracranial hemorrhagic events (OR = 0.61; 95% CI, 0.03-10.79; I2 = 62%), morbidity (OR = 0.53; 95% CI, 0.05-5.72; I2 = 86%), and mortality (OR = 1.96; 95% CI, 0.64-5.97; I2 = 0%) between the 2 groups. Subgroup analysis suggested that platelet function testing-guided therapy may contribute to fewer symptomatic thromboembolic events in patients who received stent-assisted coiling (OR = 0.43; 95% CI, 0.18-1.02; I2 = 43%) or a combination of stent-assisted and flow-diverter stent placement (OR = 0.61; 95% CI, 0.36-1.02; I2 = 0%) or who changed from clopidogrel to other thienopyridines (OR = 0.64; 95% CI, 0.40-1.02; I2 = 18%), though the difference did not reach statistical significance. LIMITATIONS Heterogeneous endovascular treatment methods and adjusted antiplatelet regimens were limitations. CONCLUSIONS Platelet function testing-guided antiplatelet strategy significantly reduced the incidence of symptomatic thromboembolic events without any increase in the hemorrhagic events for patients undergoing endovascular treatment for intracranial aneurysms.
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Affiliation(s)
- X Wang
- From the Departments of Pharmacy (X.W., Z.A.)
| | - L Luo
- Department of Pharmacy (L.L.), Beijing Huairou Hospital, Beijing, China
| | - Y Wang
- Neurosurgery (Y.W.), Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Z An
- From the Departments of Pharmacy (X.W., Z.A.)
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Kuang TY, Yin SQ, Dai WH, Luo L, Chen T, Liang XH, Wang RX, Liang HP, Zhu JY. [Effects of enhancing the expression of aryl hydrocarbon receptor in post-traumatic mice macrophages on the inflammatory cytokine level and bactericidal ability]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:633-640. [PMID: 37805692 DOI: 10.3760/cma.j.cn501225-20230210-00040] [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] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Objective: To explore the expression pattern of aryl hydrocarbon receptor (AhR) in mice peritoneal macrophages (PMs) after major trauma and analyze the effects of enhanced AhR expression on the inflammatory cytokine level and bactericidal ability after trauma. Methods: The experimental study method was used. Forty 6-8-week-old male C57BL/6J mice (the same mouse age, sex, and strain below) were divided into control group, post trauma hour (PTH) 2 group, PTH 6 group, and PTH 12 group according to the random number table (the same grouping method below), with 10 mice in each group. Mice in the latter 3 groups were constructed as severe trauma model with fracture+blood loss, while mice in control group were left untreated. The primary PMs (the same cells below) were extracted from the mice in control group, PTH 2 group, PTH 6 group, and PTH 12 group when uninjured or at PTH 2, 6, and 12, respectively. Then the protein and mRNA expressions of AhR were detected by Western blotting and real-time fluorescence quantitative reverse transcription polymerase chain reaction, respectively, and the gene expressions of AhR signaling pathway related molecules were analyzed by transcriptome sequencing. Twenty mice were divided into control group and PTH 6 group, with 10 mice in each group, and the PMs were extracted. The level of ubiquitin of AhR was detected by immunoprecipitation. Twelve mice were divided into dimethyl sulfoxide (DMSO) alone group, PTH 6+DMSO group, MG-132 alone group, and PTH 6+MG-132 group, with 3 mice in each group. After the corresponding treatment, PMs were extracted, and the protein expression of AhR was detected by Western blotting. Twenty mice were constructed as PTH 6 model. Then, the PMs were extracted and divided into empty negative control adenovirus (Ad-NC) group and AhR overexpression adenovirus (Ad-AhR) group. The protein expression of AhR was detected by Western blotting at 36 h after some PMs were transfected with the corresponding adenovirus. The rest cells in Ad-NC group were divided into Ad-NC alone group and Ad-NC+endotoxin/lipopolysaccharide (LPS) group, and the rest cells in Ad-AhR group were divided into Ad-AhR alone group and Ad-AhR+LPS group. The expressions of interleukin-6 (IL-6) and tumor necrosis factor α (TNF-α) in the cell supernatant were detected by enzyme-linked immunosorbent assay at 12 h after the corresponding treatment (n=6). Twenty mice were obtained to extract PMs. The cells were divided into control+Ad-NC group, PTH 6+Ad-NC group, control+Ad-AhR group, and PTH 6+Ad-AhR group, and the intracellular bacterial load was detected by plate spread method after the corresponding treatment (n=6). Data were statistically analyzed with one-way analysis of variance, least significant difference test, analysis of variance for factorial design, and independent sample t test. Results: Compared with 1.16±0.28 of control group, the protein expressions of AhR in PMs in PTH 2 group (0.59±0.14), PTH 6 group (0.72±0.16), and PTH 12 group (0.71±0.17) were all significantly decreased (P<0.05). The overall comparison of the difference of AhR mRNA expression in PMs among control group, PTH 2 group, PTH 6 group, and PTH 12 group showed no statistical significance (P>0.05). The AhR signaling pathway related molecules included AhR, AhR inhibitor, cytochrome P450 family member 1b1, cytochrome P450 family member 11a1, heat shock protein 90, aryl hydrocarbon receptor-interaction protein, and heat shock protein 70 interaction protein. The heat shock protein 90 expression of PMs in PTH 2 group was higher than that in control group, while the expressions of other molecules did not change significantly after trauma. Compared with that in control group, the level of ubiquitin of AhR in PMs in PTH 6 group was increased. Compared with that in DMSO alone group, the protein expression of AhR in PMs in PTH 6+DMSO group was decreased, while that in PMs in MG-132 alone group had no significant change. Compared with that in PTH 6+DMSO group, the protein expression of AhR in PMs in PTH 6+MG-132 group was up-regulated. At transfection hour 36, compared with that in Ad-NC group, the protein expression of AhR in PMs in Ad-AhR group was increased. At treatment hour 12, compared with those in Ad-NC+LPS group, the expressions of IL-6 and TNF-α in PM supernatant of Ad-AhR+LPS group were significantly decreased (with t values of 4.80 and 3.82, respectively, P<0.05). The number of intracellular bacteria of 1×106 PMs in control+Ad-NC group, PTH 6+Ad-NC group, control+Ad-AhR group, and PTH 6+Ad-AhR group was (3.0±1.8), (41.8±10.2), (1.8±1.2), and (24.2±6.3) colony forming unit, respectively. Compared with that in PTH 6+Ad-NC group, the number of intracellular bacteria of PMs in PTH 6+Ad-AhR group was significantly decreased (t=3.61, P<0.05). Conclusions: Ubiquitin degradation of AhR in PMs of mice after major trauma results in decreased protein expression of AhR. Increasing the expression of AhR in post-traumatic macrophages can reduce the expressions of LPS-induced inflammatory cytokines IL-6 and TNF-α, and improve the bactericidal ability of macrophages after trauma.
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Affiliation(s)
- T Y Kuang
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - S Q Yin
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - W H Dai
- Emergency Department of the Second Affiliated Hospital of Hainan Medical University, the Emergency and Critical Care Clinical Medicine Research Center of Hainan, Haikou 570216, China
| | - L Luo
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - T Chen
- The 17th Team of Cadet Brigade, College of Basic Medical Sciences, Army Medical University, Chongqing 400038, China
| | - X H Liang
- The 17th Team of Cadet Brigade, College of Basic Medical Sciences, Army Medical University, Chongqing 400038, China
| | - R X Wang
- Emergency Department of the Second Affiliated Hospital of Hainan Medical University, the Emergency and Critical Care Clinical Medicine Research Center of Hainan, Haikou 570216, China
| | - H P Liang
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - J Y Zhu
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Chongqing 400042, China
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Luo L, Luo LZ, Lu ZB, Xiao YB. [Efficacy of high-frequency electrotome combined with balloon dilatation and cryotherapy through electronic bronchoscope in the management of lumen occlusion type of tracheobronchial tuberculosis]. Zhonghua Jie He He Hu Xi Za Zhi 2023; 46:587-591. [PMID: 37278173 DOI: 10.3760/cma.j.cn112147-20220928-00786] [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] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The lumen-occlusion type of tracheobronchial tuberculosis is the most severe type of tracheobronchial stenosis of tuberculosis, often leading to atelectasis or even lung damage in patients. Some patients require surgical resection of the diseased airways and lungs, which can seriously affect their quality of life and even be life-threatening. In order to improve the treatment ability of bronchoscopy physicians for lumen occlusion type of tracheobronchial tuberculosis, this article retrospectively analyzed 30 cases of tracheobronchial tuberculosis with lumen occlusion in Hunan Chest Hospital, and summarized the experience of achieving better results by high-frequency electrotome combined with balloon dilatation and cryotherapy.
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Affiliation(s)
- L Luo
- Endoscopy Center, Hunan Chest Hospital, Changsha 410013, China
| | - L Z Luo
- Endoscopy Center, Hunan Chest Hospital, Changsha 410013, China
| | - Z B Lu
- Endoscopy Center, Hunan Chest Hospital, Changsha 410013, China
| | - Y B Xiao
- Endoscopy Center, Hunan Chest Hospital, Changsha 410013, China
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13
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Luo L, Jiao Y, Yang P, Li Y, Huang WY, Ke XY, Zou DH, Jing HM. [Efficacy and prognostic factors of allogeneic hematopoietic stem cell transplantation treatment for T lymphoblastic leukemia/lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:388-394. [PMID: 37550188 PMCID: PMC10440623 DOI: 10.3760/cma.j.issn.0253-2727.2023.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Indexed: 08/09/2023]
Abstract
Objective: To analyze the efficacy and prognostic factors of allogeneic hematopoietic stem cell transplantation (allo-HSCT) for treating T lymphoblastic leukemia/lymphoma (T-ALL/LBL) . Methods: This study retrospectively evaluated 119 adolescent and adult patients with T-ALL/LBL from January 2006 to January 2020 at Peking University Third Hospital and Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences. Patients were divided into chemotherapy-only, chemotherapy followed by allo-HSCT, and chemotherapy followed by autologous hematopoietic stem cell transplantation (auto-HSCT) groups according to the consolidation regimen, and the 5-year overall survival (OS) and progression-free survival (PFS) rates of each group were compared. Results: Among 113 patients with effective follow-up, 96 (84.9%) patients achieved overall response (ORR), with 79 (69.9%) having complete response (CR) and 17 (15.0%) having partial response (PR), until July 2022. The analysis of the 96 ORR population revealed that patients without transplantation demonstrated poorer outcomes compared with the allo-HSCT group (5-year OS: 11.4% vs 55.6%, P=0.001; 5-year PFS: 8.9% vs 54.2%, P<0.001). No difference was found in 5-year OS and 5-year PFS between the allo-HSCT and auto-HSCT groups (P=0.271, P=0.197). The same results were achieved in the CR population. Allo-HSCT got better 5-year OS (37.5% vs 0) for the 17 PR cases (P=0.064). Different donor sources did not affect 5-year OS, with sibling of 61.1% vs hap-haploidentical of 63.6% vs unrelated donor of 50.0% (P>0.05). No significant difference was found in the treatment response in the early T-cell precursor acute lymphoblastic leukemia/lymphoma (ETP) and non-ETP populations. The ETP group demonstrated lower 5-year OS compared with the non-ETP group in the chemotherapy alone group (0 vs 12.6%, P=0.045), whereas no significant difference was found between the ETP and non-ETP groups in the allo-HSCT group (75.0% vs 62.9%, P=0.852). Multivariate analysis revealed that high serum lactate dehydrogenase level, without transplantation, and no CR after chemotherapy induction were independently associated with inferior outcomes (P<0.05) . Conclusion: Allo-HSCT could be an effective consolidation therapy for adult and adolescent patients with T-ALL/LBL. Different donor sources did not affect survival. Allo-HSCT may overcome the adverse influence of ETP-ALL/LBL on OS.
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Affiliation(s)
- L Luo
- Department of Hematology, Peking University Third Hospital, Beijing 100191, China
| | - Y Jiao
- Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, National Clinical Research Center for Blood Diseases, State Key Laboratory of Experimental Hematology, Tianjin 300020, China
| | - P Yang
- Department of Hematology, Peking University Third Hospital, Beijing 100191, China
| | - Y Li
- Department of Hematology, Peking University Third Hospital, Beijing 100191, China
| | - W Y Huang
- Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, National Clinical Research Center for Blood Diseases, State Key Laboratory of Experimental Hematology, Tianjin 300020, China
| | - X Y Ke
- Department of Hematology, Peking University Third Hospital, Beijing 100191, China
| | - D H Zou
- Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, National Clinical Research Center for Blood Diseases, State Key Laboratory of Experimental Hematology, Tianjin 300020, China
| | - H M Jing
- Department of Hematology, Peking University Third Hospital, Beijing 100191, China
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Wang F, Zhang YT, Su F, Huang CP, Luo L. [Determination of methylmercury in urine by direct mercury analyzer]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:304-306. [PMID: 37248187 DOI: 10.3760/cma.j.cn121094-20211110-00556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Objective: To develop asolvent extraction-direct mercury analyzer method for determination of methylmercury in urine. Methods: After the urinehydrolyzesd by hydrobromic acid, methylmercury was extracted by tolueneand reverse-extracted from L-cysteine solution, it was then detectedbydirect mercuryanalyzer. Results: The linear range was 0.2-50.0 μg/L, and the related coefficient was 0.9999. The relative standard deviations (RSD) within the group were 5.04%-6.64%, and the RSD between the group were 5.65%-8.11 %. The average recovery efficiencies were 85.4%-95.5%. The detection limitation was 0.0482 μg/L and the quantification concentrations was 0.1607 μg/L. Conclusion: The method, which has low detection limit, high sensitivity, easy to operate, is stability for the determination of methylmercury in urine.
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Affiliation(s)
- F Wang
- Department of Chemical Laboratory, Longhua District Center for Disease Control and Prevention, Shenzhen 518109, China
| | - Y T Zhang
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - F Su
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - C P Huang
- Department of Chemical Laboratory, Longhua District Center for Disease Control and Prevention, Shenzhen 518109, China
| | - L Luo
- Department of Chemical Laboratory, Longhua District Center for Disease Control and Prevention, Shenzhen 518109, China
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Ge J, Guo X, Zhao W, Zhang R, Bian Q, Luo L, Linlin X, Yao X. EVALUATION OF PRE-ABLATION NLR AND LMR AS PREDICTORS OF DISTANT METASTASES IN PATIENTS WITH DIFFERENTIATED THYROID CANCER. Acta Endocrinol (Buchar) 2023; 19:215-220. [PMID: 37908873 PMCID: PMC10614579 DOI: 10.4183/aeb.2023.215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Objective This research aim was to evaluates the role of the pre-ablation neutrophil-to-lymphocyte ratio (NLR) and lymphocyte-to-monocyte ratio (LMR) as predictors of distant metastases in patients with differentiated thyroid cancer (DTC). Methods A retrospective analysis was given to 140 patients with DTC who received 131I remnant ablation after surgery. The patients were divided into two groups based on the existence of distant metastasis. Results The two groups showed no significant difference in age, gender, WBCs, neutrophils, monocytes, eosinophils, basophils and whether the tumor was multifocal. In the univariate analysis, significant differences were found in tumor size (p=0.021), lymphocyte (p=0.012), NLR (p=0.027), and LMR (p=0.007). According to the ROC curves, NLR had an AUC of 0.612 ± 0.097 with a cut-off value of 1.845, sensitivity of 60.0%, and specificity of 66.2% (p=0.027). LMR had an AUC of 0.638 ± 0.095 with a cut-off value of 4.630, sensitivity of 84.6%, and specificity of 35.4% (p=0.007). In the multivariate analysis, larger tumor size (OR=5.246, 95% CI 1.269-10.907, p=0.009) and higher NLR (OR=2.087, 95% CI 0.977-4.459, p=0.034) were statistically significant for distant metastases. Conclusion This research reveals that pre-ablation NLR and tumor size are significantly statistically correlated with distant metastases in patients with DTC.
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Affiliation(s)
- J. Ge
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - X. Guo
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - W. Zhao
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - R. Zhang
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - Q. Bian
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - L. Luo
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - X. Linlin
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
| | - X. Yao
- The First Affiliated Hospital of USTC - Department of Nuclear Medicine, Hefei, Anhui, China
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Jin HL, Duan S, Zhang P, Yang Z, Zeng Y, Chen Z, Hong L, Li M, Luo L, Chang Z, Hu J, Wang HB. Dual roles for CND1 in maintenance of nuclear and chloroplast genome stability in plants. Cell Rep 2023; 42:112268. [PMID: 36933214 DOI: 10.1016/j.celrep.2023.112268] [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: 12/23/2021] [Revised: 12/19/2022] [Accepted: 02/28/2023] [Indexed: 03/19/2023] Open
Abstract
The coordination of chloroplast and nuclear genome status is critical for plant cell function. Here, we report that Arabidopsis CHLOROPLAST AND NUCLEUS DUAL-LOCALIZED PROTEIN 1 (CND1) maintains genome stability in the chloroplast and the nucleus. CND1 localizes to both compartments, and complete loss of CND1 results in embryo lethality. Partial loss of CND1 disturbs nuclear cell-cycle progression and photosynthetic activity. CND1 binds to nuclear pre-replication complexes and DNA replication origins and regulates nuclear genome stability. In chloroplasts, CND1 interacts with and facilitates binding of the regulator of chloroplast genome stability WHY1 to chloroplast DNA. The defects in nuclear cell-cycle progression and photosynthesis of cnd1 mutants are respectively rescued by compartment-restricted CND1 localization. Light promotes the association of CND1 with HSP90 and its import into chloroplasts. This study provides a paradigm of the convergence of genome status across organelles to coordinately regulate cell cycle to control plant growth and development.
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Affiliation(s)
- Hong-Lei Jin
- Institute of Medical Plant Physiology and Ecology, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, People's Republic of China; Guangzhou Key Laboratory of Chinese Medicine Research on Prevention and Treatment of Osteoporosis, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, No. 263, Longxi Avenue, Guangzhou, China.
| | - Sujuan Duan
- Institute of Medical Plant Physiology and Ecology, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, People's Republic of China
| | - Pengxiang Zhang
- Institute of Medical Plant Physiology and Ecology, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, People's Republic of China
| | - Ziyue Yang
- Institute of Medical Plant Physiology and Ecology, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, People's Republic of China
| | - Yunping Zeng
- Institute of Medical Plant Physiology and Ecology, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, People's Republic of China
| | - Ziqi Chen
- Institute of Medical Plant Physiology and Ecology, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, People's Republic of China
| | - Liu Hong
- Institute of Medical Plant Physiology and Ecology, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, People's Republic of China
| | - Mengshu Li
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Lujun Luo
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Zhenyi Chang
- Institute of Medical Plant Physiology and Ecology, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, People's Republic of China
| | - Jiliang Hu
- Institute of Medical Plant Physiology and Ecology, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, People's Republic of China
| | - Hong-Bin Wang
- Institute of Medical Plant Physiology and Ecology, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, People's Republic of China; Key Laboratory of Chinese Medicinal Resource from Lingnan (Guangzhou University of Chinese Medicine), Ministry of Education, Guangzhou, China; State Key Laboratory of Dampness Syndrome of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China.
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Luo L, Yao XB, Zheng SJ, Yang WL. [A family study of the compound heterozygous mutation of the UGT1A1 gene causing Crigler-Najjar syndrome type II]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:168-173. [PMID: 37137832 DOI: 10.3760/cma.j.cn501113-20211124-00580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Objective: To investigate the family gene features in Crigler-Najjar syndrome (CNS) type II. Methods: The UGT1A1 gene and related bilirubin metabolism genes were comprehensively analysed in a CNS-II family (3 CNS-II, 1 Gilbert syndrome, and 8 normal subjects). The genetics basis of CNS-II were investigated from the perspective of family analysis. Results: In three cases, compound heterozygous mutations at three sites of the UGT1A1 gene (c.-3279T > G, c.211G > A and c.1456T > G) caused CNS-II. Gilbert syndrome and CNS-II were not significantly associated with distribution or diversity loci. Conclusion: The compound heterozygous pathogenic mutations (c.-3279T > G, c.211G > A, and c.1456T > G) at three loci of the UGT1A1 gene may be the feature of the newly discovered CNS-II family genes based on the CNS-II family study.
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Affiliation(s)
- L Luo
- Department of Infectious Diseases, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - X B Yao
- Department of Infectious Diseases, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - S J Zheng
- First Department of Hepatology Center, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - W L Yang
- Department of Infectious Diseases, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
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18
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Zhou L, Luo L, Ying DM, Xiang JG, Xiong X, Gao CY, Sun QL, Chen ZQ. [Observation on the clinical outcomes of continued pregnancy following cesarean scar pregnancy in 55 women]. Zhonghua Fu Chan Ke Za Zhi 2023; 58:37-43. [PMID: 36720613 DOI: 10.3760/cma.j.cn112141-20220817-00515] [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: 02/02/2023]
Abstract
Objective: To observe the clinical outcomes of continued pregnancy in pregnant women with cesarean scar pregnancy (CSP). Methods: A retrospective analysis was performed on the pregnancy outcomes of 55 pregnant women who were diagnosed with CSP at the Second Affiliated Hospital of Army Medical University during the first trimester of pregnancy from August 1st, 2018 to October 31st, 2021 and strongly requested to continue the pregnancy. Results: Of the 55 pregnant women, 15 terminated the pregnancy in the first trimester, 1 underwent hysterotomy at 23 weeks of gestation due to cervical dilation, and 39 (71%, 39/55) continued pregnancy to the third trimester achieving live births via cesarean section. The gestational age of the 39 pregnant women delivered by cesarean section was 35+6 weeks (range: 28+5-39+2 weeks), of whom 7 cases at 28+5-33+6 weeks, 20 cases at 34-36+6 weeks, and 12 cases at 37-39+2 weeks. The results of pathological examination were normal placenta in 3 cases (8%, 3/39), placenta creta in 4 cases (10%, 4/39), placenta increta in 9 cases (23%, 9/39) and placenta percreta in 23 cases (59%, 23/39). Among the 36 pregnant women who were pathologically confirmed as placenta accreta spectrum disorders (PAS) after surgery, the last prenatal ultrasonography showed placenta previa in 27 cases (75%, 27/36) and not observed placenta previa in 9 cases. The median intraoperative blood loss, autologous blood transfusion, and allogeneic suspended red blood cell infusion of 39 pregnant women during cesarean section were 1 000 ml (300-3 500 ml), 300 ml (0-2 000 ml) and 400 ml (0-2 400 ml), respectively. The uterine preservation rate was 100% (39/39), and only 1 case received cystostomy due to intracystic hemorrhage. The birth weight of the newborn was 2 580 g (1 350-3 800 g), and 1 case of mild asphyxia. Conclusions: Pregnant women with CSP who continue pregnancy under close monitoring after adequate ultrasound evaluation and doctor-patient communication could achieve better maternal and infant outcomes, but pregnant women with CSP are highly likely to continue pregnancy and develop into PAS. Effective hemostasis means and multidisciplinary team cooperation are needed in perinatal period for ensuring maternal and fetal safety.
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Affiliation(s)
- L Zhou
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
| | - L Luo
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
| | - D M Ying
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
| | - J G Xiang
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
| | - X Xiong
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
| | - C Y Gao
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
| | - Q L Sun
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
| | - Z Q Chen
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Army Medical University, Chongqing 400037, China
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Zou P, Liu J, Li X, Yaseen M, Yao J, Liu L, Luo L, Wang H, Shi X, Li Z, Sun T, Gao Y, Gao C, Li LL. A Membrane Curvature Modulated Lipopeptide to Broadly Combat Multidrug-Resistant Bacterial Pneumonia with Low Resistance Risk. ACS Nano 2022; 16:20545-20558. [PMID: 36375012 DOI: 10.1021/acsnano.2c07251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The extensive spread of multidrug resistance to Gram-negative bacteria has become a huge threat to human health, where peptide-based antibacterial agents have emerged as a powerful star weapon. Here we report a lipopeptide (LP-20) constructed nanomicelle with a different antibacterial mechanism of membrane curvature modulation, which induced dynamic membrane fission resulting in acceleration and enhancement of antibacterial activity to clinically isolated ESKAPE strains, including multidrug-resistant (MDR) pathogens. The minimum inhibitory concentration was reduced to 2-10 μM, and the minimum duration for killing was shortened to less than an hour by LP-20. This is an improvement over antimicrobial peptides and traditional antibiotics, such as ciprofloxacin and tetracycline, significantly enhancing antibacterial activity for MDR, and we observed no acquisition of resistance for one month. This accelerated germicidal mechanism was attributed to multitargeting with lipopolysaccharides, phosphoethanolamine, phosphatidylglycerol, and cardiolipin, and the synergetic interactions induced a high curvature of the bacterial membrane, which facilitated simultaneously efficient damage to both inner and outer membrane. The LP-20 effectively prolonged the lifetime of myositis mice with Escherichia coli MDR and pneumonia mice with Klebsiella pneumoniae through a hepatic metabolism with ignorable toxicity. This study provides critical information for the fabrication of lipopeptide-based nano-antibiotics for the efficient control of intractable MDR caused by Gram-negative pathogens.
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Affiliation(s)
- Pengfei Zou
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing100190, China
- State key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing100850, China
- School of Pharmacy, Weifang Medical University, Weifang261053, China
| | - Jiao Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing100190, China
- School of Pharmacy, Weifang Medical University, Weifang261053, China
| | - Xinyu Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing100190, China
| | - Muhammad Yaseen
- Institute of Chemical Sciences, University of Peshawar, Peshawar25120, KP, Pakistan
| | - Jiahui Yao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing100190, China
- Department of Pharmacy, PLA General Hospital, Center of Medicine Clinical Research, Beijing100853, China
| | - Lingling Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing100190, China
- Department of Pharmacy, PLA General Hospital, Center of Medicine Clinical Research, Beijing100853, China
| | - Lujun Luo
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing100190, China
| | - Hui Wang
- Laboratory of Theoretical and Computational Nanoscience, National Center for Nanoscience and Technology, Beijing100190, China
| | - Xinghua Shi
- Laboratory of Theoretical and Computational Nanoscience, National Center for Nanoscience and Technology, Beijing100190, China
| | - Zhiping Li
- State key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing100850, China
| | - Tongyi Sun
- School of Life Science and Technology, Shandong Key Laboratory of Proteins and Peptides Pharmaceutical Engineering, Shandong Universities Key Laboratory of Biopharmaceuticals, Weifang Medical University, Weifang261053, China
| | - Yuanyuan Gao
- School of Pharmacy, Weifang Medical University, Weifang261053, China
| | - Chunsheng Gao
- State key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing100850, China
| | - Li Li Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing100190, China
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Luo L, Pasquali L, Srivastava A, Pivarcsi A, Sonkoly E. 318 The long non-coding RNA LINC00958 is overexpressed in psoriasis epidermis and induces keratinocyte proliferation. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.331] [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: 11/19/2022]
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Kim JH, Li L, Zhang Z, Hayer K, Xian L, Luo L, Cope L, Tikhonenko A, Resar L. OP04 High Mobility Group A1 (HMGA1) epigenetic regulators induce ETV5 networks in relapsed B-cell leukemia and provide novel therapeutic targets. ESMO Open 2022. [DOI: 10.1016/j.esmoop.2022.100680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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22
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Luo L, Srivastava A, Freisenhausen J, Saha P, Khera N, Prieux R, Monteiro A, Pivarcsi A, Sonkoly E. 346 MiR-149: a microRNA regulating keratinocyte immune responses in psoriasis. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.359] [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: 11/19/2022]
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Freisenhausen J, Khera N, Gao C, Srivastava A, Luo L, Pivarcsi A, Sonkoly E. 375 miR-484: a microRNA with altered subcellular localization in psoriasis keratinocytes. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.388] [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: 11/19/2022]
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Huang Y, Zheng ZW, Chen C, Li K, Chen SY, Chen YY, Jing QL, Ma Y, Luo L, Yang ZC, Zhang ZB. [Epidemiological characteristics of two local COVID-19 outbreaks caused by 2019-nCoV Omicron variant in Guangzhou, China]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1705-1710. [PMID: 36444451 DOI: 10.3760/cma.j.cn112338-20220523-00450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To understand the epidemiological characteristics of two local COVID-19 outbreaks caused by 2019-nCoV Omicron variant in Guangzhou, such as incubation period, serial interval, basic reproductive number (R0) and the influence of gathering places on R0, and provide evidence for the prevention and control of Omicron variant infection. Methods: The data of daily confirmed cases of Omicron variant infection from April 8 to May 8, 2022 in two COVID-19 outbreaks in Guangzhou were collected for model fitting. Weibull, Gamma and lognormal distribution were used to estimate incubation period and serial interval. Exponential growth method and the maximum likelihood estimation were used to estimate R0. Results: The median of incubation period was 2.94 (95%CI: 2.52-3.38) days and median of serial interval was 3.32 (95%CI: 2.89-3.81) days. The estimated R0 in small-size place was 4.40 (95%CI: 3.95-4.85), while the estimated R0 at airport was 11.35 (95%CI: 11.02-11.67). Conclusion: The incubation period of Omicron variant in two local COVID-19 outbreaks in Guangzhou is significantly shorter than that of delta variant. The higher the gathering degree in a place, the larger the R0. Due to its rapid transmission, COVID-19 epidemic is prone to occur. Therefore, the COVID-19 prevention and control strategy should be dynamically adjusted in time.
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Affiliation(s)
- Y Huang
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China Institute of Public Health, Guangzhou Medical University, Guangzhou 510440, China
| | - Z W Zheng
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - C Chen
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - K Li
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - S Y Chen
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y Y Chen
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Q L Jing
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China Institute of Public Health, Guangzhou Medical University, Guangzhou 510440, China
| | - Y Ma
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China Institute of Public Health, Guangzhou Medical University, Guangzhou 510440, China
| | - L Luo
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China Institute of Public Health, Guangzhou Medical University, Guangzhou 510440, China
| | - Z C Yang
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Z B Zhang
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China Institute of Public Health, Guangzhou Medical University, Guangzhou 510440, China
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Crants S, Olson S, Li Y, Bejan C, Bick A, Luo L. Radiation Therapy and Subsequent Clonal Hematopoiesis: An Analysis of a Biorepository of 89,782 Patients. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1798] [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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Li JM, Guan YH, Li JP, Luo L, Yang F, Chen XB. [Discussion on relevant issues of Technical Specifications for Occupational Health Surveillance (GBZ 188-2014)]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:787-789. [PMID: 36348565 DOI: 10.3760/cma.j.cn121094-20211008-00483] [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: 06/16/2023]
Abstract
Technical Specifications for Occupational Health Surveillance (GBZ 188-2014) is an important basis for judging suspected occupational diseases and occupational contraindications. There are crossing over or overlap between occupational contraindications and diagnostic criteria of poisoning damage. Occupational contraindications have different meanings with the degree and range of common diseases or symptoms and the frequency of physical examination during employment conflicts with the current standard. Based on the practice of occupational health examination in a large population, the present study analyzed relevant articles and put forward some suggestions for revision, in combination with clinical medicine, occupational health standards, and diagnostic standards of occupational diseases. The modification could provide a reference for the revision of Technical Specifications for Occupational Health Surveillance and the practice of occupational health examination.
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Affiliation(s)
- J M Li
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
| | - Y H Guan
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
| | - J P Li
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
| | - L Luo
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
| | - F Yang
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
| | - X B Chen
- The Department of Occupational Health Management, Changsha Centre for Disease Control and Prevention, Changsha 410003, China
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Luo L, Tong J, Li L, Jin M. [Xenon post-conditioning protects against spinal cord ischemia-reperfusion injury in rats by downregulating mTOR pathway and inhibiting endoplasmic reticulum stress-induced neuronal apoptosis]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:1256-1262. [PMID: 36073227 DOI: 10.12122/j.issn.1673-4254.2022.08.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE The purpose of this study was to determine whether xenon post-conditioning affects mTOR signaling as well as endoplasmic reticulum stress (ERS)-apoptosis pathway in rats with spinal cord ischemia/reperfusion injury. METHODS Fifty male rats were randomized equally into sham-operated group (Sham group), I/R model group (I/R group), I/R model+ xenon post-conditioning group (Xe group), I/R model+rapamycin (a mTOR signaling pathway inhibitor) treatment group (I/R+ Rapa group), and I/R model + xenon post- conditioning with rapamycin treatment group (Xe + Rapa group).. In the latter 4 groups, SCIRI was induced by clamping the abdominal aorta for 85 min followed by reperfusion for 4 h. Rapamycin (or vehicle) was administered by daily intraperitoneal injection (4 mg/kg) for 3 days before SCIRI, and xenon post-conditioning by inhalation of 1∶1 mixture of xenon and oxygen for 1 h at 1 h after initiation of reperfusion; the rats without xenon post-conditioning were given inhalation of nitrogen and oxygen (1∶ 1). After the reperfusion, motor function and histopathologic changes in the rats were examined. Western blotting and real-time PCR were used to detect the protein and mRNA expressions of GRP78, ATF6, IRE1α, PERK, mTOR, p-mTOR, Bax, Bcl-2 and caspase-3 in the spinal cord. RESULTS The rats showed significantly lowered hind limb motor function following SCIRI (P < 0.01) with a decreased count of normal neurons, increased mRNA and protein expressions of GRP78, ATF6, IRE1α, PERK, and caspase-3, and elevated p-mTOR/mTOR ratio and Bax/Bcl-2 ratio (P < 0.01). Xenon post-conditioning significantly decreased the mRNA and protein levels of GRP78, ATF6, IRE1α, PERK and caspase-3 (P < 0.05 or 0.01) and reduced p-mTOR/mTOR and Bax/Bcl-2 ratios (P < 0.01) in rats with SCIRI; the mRNA contents and protein levels of GRP78 and ATF6 were significantly decreased in I/R+Rapa group (P < 0.01). Compared with those in Xe group, the rats in I/R+Rapa group and Xe+Rapa had significantly lowered BBB and Tarlov scores of the hind legs (P < 0.01), and caspase-3 protein level and Bax/Bcl-2 ratio were significantly lowered in Xe+Rapa group (P < 0.05 or 0.01). CONCLUSION By inhibiting ERS and neuronal apoptosis, xenon post- conditioning may have protective effects against SCIRI in rats. The mTOR signaling pathway is partially involved in this process.
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Affiliation(s)
- L Luo
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - J Tong
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - L Li
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - M Jin
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
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You W, Luo L, Li Q, Wang Y, Wang Y, Gong Q, Li F. Altered dynamic functional topology in first-episode untreated patients with schizophrenia can aid in early diagnosis. Eur Psychiatry 2022. [PMCID: PMC9564955 DOI: 10.1192/j.eurpsy.2022.321] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction There is a growing consensus on brain networks that it is not immutable but rather a dynamic complex system for adapting environment. The neuroimaging research studying how brain regions work collaboratively with dynamic methods had demonstrated its effectiveness in revealing the neural mechanisms of schizophrenia. Objectives To investigate altered dynamic brain functional topology in first-episode untreated schizophrenia patients (SZs) and establish classification models to find objective brain imaging biomarkers. Methods Resting-state-functional magnetic resonance data for SZs and matched healthy controls were obtained(Table1). ![]()
Power-264-template was used to extract nodes and sliding-window approach was carried out to establish functional connectivity matrices. Functional topology was assessed by eigenvector centrality(EC) and node efficiency and its time-fluctuating was evaluated with coefficient of variation(CV). Group differences of dynamic topology and correlation analysis between Positive and Negative Syndrome Scale(PANSS) scores and topology indices showing group differences, which also were used in establishing classification models, was examed. Results The CV of node efficiency in angular and paracingulate gyrus was larger in SZs. There are 13 nodes assigned into several brain networks displaying altered CV of EC between groups(Figure1.A). Fluctuation of EC of the node in DMN, which was lower in SZs, showed negative correlation with PANSS total scores(Figure1.B). Dynamic functional topology of above nodes was used to train classification models and demonstrated 80% and 71% accuracy for support vector classification(SVC) and random forest(RF), respectively(Figure2). ![]()
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Conclusions Dynamic functional topology illustrated a capability in identifying SZs. Aberrated dynamics of DMN relevant to severity of patient’s symptoms could reveal the reason why it contributed to classification. Disclosure No significant relationships.
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Li Q, Luo L, You W, Wang Y, Wang Y, Gong Q, Li F. Brain controllability and clinical relevance in schizophrenia. Eur Psychiatry 2022. [PMCID: PMC9566872 DOI: 10.1192/j.eurpsy.2022.516] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction
Apart from the psychiatric symptoms, cognitive deficits are also the core symptoms of schizophrenia. Brain network control theory provided information on the role of a specific brain region in the cognitive control process, helping understand the neural mechanism of cognitive impairment in schizophrenia.
Objectives
To characterize the control properties of functional brain network in first-episode untreated patients with schizophrenia and the relationships between controllability and psychiatric symptoms, as well as exploring the predictive value of controllability in differentiating patients from healthy controls (HCs).
Methods
Average and modal controllability of brain networks were calculated and compared between 133 first-episode untreated patients with schizophrenia and 135 HCs. The associations between controllability and clinical symptoms were evaluated using sparse canonical correlation analysis. Support vector machine (SVM) and SVM-recursive feature elimination combined with the controllability were performed to establish the individual prediction model.
Results
Compared to HCs, the patients with schizophrenia showed increased average controllability and decreased modal controllability in dorsal anterior cingulate cortex (dACC). Brain controllability predominantly in somatomotor, default mode, and visual networks was associated with the positive symptomatology of schizophrenia. The established model could identify patients with an accuracy of 0.68. Furthermore, the most discriminative features were located in dACC, medial prefrontal lobe, precuneus and superior temporal gyrus.
Conclusions
Altered controllability in dACC may play a critical role in the neuropathological mechanisms of cognitive deficit in schizophrenia, which could drive the brain function to different states to cope with varied cognitive tasks. As symptom-related biomarkers, controllability could be also beneficial to individual prediction in schizophrenia.
Disclosure
No significant relationships.
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Liu X, Wang W, Tang Y, Wang YK, Luo L, Song L. [Comparison of the long-term outcomes of focused ultrasound ablation surgery for uterine fibroids and myomectomy]. Zhonghua Fu Chan Ke Za Zhi 2022; 57:244-252. [PMID: 35484655 DOI: 10.3760/cma.j.cn112141-20210830-00476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To compare the long-term outcomes after focused ultrasound ablation surgery (FUAS) versus myomectomy for uterine fibroids. Methods: A retrospective study was conducted on women who were treated by FUAS or myomectomy for uterine fibroids at First Medical Center of Chinese PLA General Hospital from January 2007 to January 2015. Regular follow-up was conducted to evaluate the symptoms relief, symptoms recurrence, the need for re-interventions and complications of the two groups. Results: The effective rates were 95.7% (730/763) and 95.5% (1 151/1 205) in women who were treated by FUAS and myomectomy, no statistical difference was seen between the two groups (χ²=0.027, P=0.869). The cumulative rates of symptoms recurrence at 1 year, 3 years, 5 years, 8 years and 10 years of follow-up in FUAS group were 1.8%, 6.8%, 11.9%, 15.2% and 15.9%, respectively; and the cumulative re-intervention rates were 0.7%, 4.1%, 6.8%, 9.9% and 11.0%, respectively. The cumulative rates of symptoms recurrence at 1 year, 3 years, 5 years, 8 years and 10 years of follow-up in myomectomy group were 1.8%, 5.9%, 10.6%, 14.2% and 14.9%, respectively; and the cumulative re-intervention rates were 0.9%, 4.5%, 7.8%, 10.3% and 11.4%, respectively. No statistical differences were seen between the two groups (all P>0.05). There were no significant differences in the effective rate, symptoms recurrence rate and re-intervention rate between the two groups in patients with intermural fibroids; but the effective rate of FUAS (95.9%, 235/245) was higher than that of myomectomy (89.1%, 115/129), the symptoms recurrence rate (11.9%, 28/235) was lower than that of myomectomy (27.8%, 32/115), and the re-intervention rate (7.7%, 18/235) was lower than that of myomectomy (17.4%, 20/115) in patients with submucosal fibroids, there were significant different (all P<0.05). The effective rate of FUAS (91.0%, 132/145) was lower than that of myomectomy (97.0%, 322/332), the symptoms recurrence rate (32.6%, 43/132) was higher than that of myomectomy (9.9%, 32/322), and the re-intervention rate (22.0%, 29/132) was higher than that of myomectomy group (6.2%, 20/132) in patients with subserosal fibroids, there were significant different (all P<0.01). The incidences of total [1.8% (14/763) vs 21.9% (264/1 205)], minor and moderate adverse events were lower in FUAS group than myomectomy group (all P<0.001). Conclusion: Satisfaction with long-term outcomes after FUAS treatment or myomectomy for uterine fibroids is comparable.
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Affiliation(s)
- X Liu
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - W Wang
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y Tang
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y K Wang
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - L Luo
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Lei Song
- Department of Obstetrics and Gynecology, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
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Liu S, Bu X, Kan A, Luo L, Xu Y, Chen H, Lin X, Lai Z, Wen D, Huang L, Shi M. SP1-induced lncRNA DUBR promotes stemness and oxaliplatin resistance of hepatocellular carcinoma via E2F1-CIP2A feedback. Cancer Lett 2022; 528:16-30. [PMID: 34958891 DOI: 10.1016/j.canlet.2021.12.026] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 12/20/2022]
Abstract
Oxaliplatin-based chemotherapy is widely used to treat advanced hepatocellular carcinoma (HCC), but many patients develop drug resistance that leads to tumor recurrence. Cancer stem cells (CSCs) are known to contribute to chemoresistance, the underlying mechanism, however, remains largely unknown. In this study, we discovered a specificity protein 1 (SP1)-induced long noncoding RNA--DPPA2 upstream binding RNA (DUBR) and its high expression in HCC tissues and liver CSCs. DUBR was associated with HCC progression and poor chemotherapy response. Moreover, DUBR facilitated the stemness and oxaliplatin resistance of HCC in vitro and in vivo. Mechanistically, DUBR upregulated cancerous inhibitor of protein phosphatase 2A (CIP2A) expression through E2F1-mediated transcription regulation. DUBR also exerted function by binding microRNA (miR)-520d-5p as a competing endogenous RNA to upregulate CIP2A at mRNA level. CIP2A, in turn, stabilized E2F1 protein and activated the Notch1 signaling pathway, thereby increasing the stemness feature of HCC and leading to chemoresistance. In conclusion, we identified SP1/DUBR/E2F1-CIP2A as a critical axis to activate the Notch1 signaling pathway and promote stemness and chemoresistance of HCC. Therefore, DUBR could be a potential target in HCC treatment.
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Affiliation(s)
- S Liu
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Xy Bu
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Anna Kan
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - L Luo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yj Xu
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Hl Chen
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Xj Lin
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Zc Lai
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Ds Wen
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Lc Huang
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - M Shi
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.
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TANG J, Liao Z, Luo L, Deng S, Hu X, Li X. POS-400 CD16+ MONOCYTES RECRUITED BY GLOMERULAR ENDOTHELIAL CELLS VIA THE CX3CL1-CX3CR1 AXIS CONTROBUTE TO RENAL DAMAGE IN MPO-AAV. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.422] [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: 10/19/2022] Open
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Xiao YS, Zhu FY, Luo L, Xing XY, Li YH, Zhang XW, Shen DH. [Clinical and immunological characteristics of 88 cases of overlap myositis]. Beijing Da Xue Xue Bao Yi Xue Ban 2021. [PMID: 34916687 DOI: 10.19723/j.issn.1671-167x.2021.06.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVE To investigate the clinical and immunological characteristics of overlap myositis (OM) patients. METHODS The data of 368 patients with idiopathic inflammatory myopathies (IIMs) admitted to Peking University People's Hospital from January 2004 to August 2020 were analyzed retrospectively, including demographic characteristics, clinical characteristics (including fever, Gottron' s sign/papules, Heliotrope rash, V-sign, Shawl sign, Mechanic' s hands, skin ulceration, periungual erythema, subcutaneous calcinosis, dysphagia, myalgia, myasthenia, arthritis, Raynaud' s phenomenon, interstitial lung disease, pulmonary hypertension and myocardial involvement), laboratory characteristics, immunological characteristics [including antinuclear antibodies, rheumatoid factors, myositis-associated autoantibodies (MAAs) and myositis-specific autoantibodies (MSAs)] and survival. The clinical and immunological characteristics and prognostic differences of OM and non-OM were compared. The Kaplan-Meier and Log Rank methods were used to analyze the survival. RESULTS A total of 368 patients were included. 23.9% (88/368) of IIMs patients were OM patients. Among the 88 OM patients, 85.2% (75/88) of them were female, and the median interval between disease onset and diagnosis was 13.5 months. The incidence of overlapped connective tissue diseases in the OM patients was dermatomyositis (DM) in 60.2%, polymyositis (PM) in 3.4%, immune-mediated necrotizing myopathy (IMNM) in 2.3% and anti-synthetase syndrome (ASS) in 34.1%. Compared with the non-OM patients, the proportion of the females in the OM patients was higher (85.2% vs. 72.1%, P=0.016), the OM patients had longer disease duration [13.5(4.5, 48.0) months vs. 4.0(2.0, 12.0) months, P < 0.001]. As for clinical characteristics, compared with the non-OM patients, the incidence of V-sign (25.0% vs. 44.6%, P=0.001) and periungual erythema (8.0% vs. 19.6%, P=0.013) were lower; the incidence of Raynaud's phenomenon (14.8% vs. 1.8%, P < 0.001), interstitial pneumonia (88.6% vs. 72.1%, P=0.001), pulmonary hypertension (22.7% vs. 7.5%, P < 0.001) and myocardial involvement (18.2% vs. 9.3%, P=0.033) were higher. As for immunological characteristics, compared with the non-OM patients, the incidence of elevated aspartate aminotransferase (AST) (31.8% vs. 45.0%, P=0.035) was lower and elevated C-reactive protein (CRP) (58.0% vs. 44.6%, P=0.037) was higher; the positive rates of antinuclear antibodies (ANA) (85.1% vs. 63.4%, P=0.001) and rheumatoid factors (RF) (40.2% vs. 17.8%, P < 0.001) and anti-Ro-52 (71.6% vs. 56.1%, P=0.038) in serum were higher. There was no significant difference in the survival between the OM patients and non-OM patients. CONCLUSION Pulmonary hypertension and myocardial involvement were frequently observed in OM.
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Affiliation(s)
- Y S Xiao
- Department of Pathology, Peking University People's Hospital, Beijing 100044, China
| | - F Y Zhu
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing 100044, China
| | - L Luo
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing 100044, China
| | - X Y Xing
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing 100044, China
| | - Y H Li
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing 100044, China
| | - X W Zhang
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing 100044, China
| | - D H Shen
- Department of Pathology, Peking University People's Hospital, Beijing 100044, China
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Luo L, Yang JX, Luo T, Liu D, Wu GH, He JM. A study on the mechanism of PP2A in the recovery of SCI in rats through downregulation of MMP-9 via MAPK signaling pathway. Eur Rev Med Pharmacol Sci 2021; 25:7195-7203. [PMID: 34919217 DOI: 10.26355/eurrev_202112_27411] [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: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the mechanism of action of protein phosphatase 2A (PP2A) in the recovery of spinal cord injury (SCI) in rats by downregulating matrix metalloproteinase 9 (MMP-9) via the mitogen-activated protein kinase (MAPK) signaling pathway. MATERIALS AND METHODS A model of SCI was first successfully established in rats. A total of three groups were set, including: sham operation group (A group), SCI group (B group) and PP2A group (C group). The Basso, Beattie and Bresnahan (BBB) motor function score and inclined plane test were adopted to evaluate the motor ability and limb muscle strength of rats in each group. The water content in spinal cord tissues was detected as well. Quantitative Polymerase Chain Reaction (qPCR) assay was performed to analyze the messenger ribonucleic acid (mRNA) expression levels of MAPK, MMP-2, and MMP-9 in spinal cord tissues. The expressions of inflammatory factors tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) and IL-6 in each group of rats were determined via enzyme-linked immunosorbent assay (ELISA). Western blotting (WB) was employed to measure the protein expression levels of MAPK, MMP-2 and MMP-9 in each group of rats. Additionally, the apoptosis of nerve cells in spinal cord tissues was analyzed through terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay. RESULTS The BBB score was 8.8 points in C group at 5 d after operation, which was significantly different from that in B group (p<0.05). The slope in B and C groups was clearly lower than that in A group at each time point (p<0.001). Meanwhile, it was significantly higher in C group than that in B group at 5, 7 and 9 d (p<0.05). The edema rate rose notably in B group compared with A group (p<0.001). However, spinal cord edema was remarkably relieved after treatment with FRY720 (p<0.01), suggesting that PP2A agonist could treat SCI in rats. The levels of cytokines TNF-α, IL-1β and IL-6 were markedly higher in B group than those in A group (p<0.01). However, they were significantly reduced after treatment with PP2A agonist (p<0.01). In comparison with A group, B group exhibited remarkably decreased mRNA expression of MAPK and elevated mRNA expressions of MMP-2 and MMP-9 (p<0.01). However, C group exhibited an upregulated mRNA expression of MAPK (p<0.05), a downregulated mRNA expression of MMP-9 (p<0.01), and an undifferentiated mRNA expression of MMP-2 (p>0.05). Compared with B group, the protein expression level of MAPK significantly increased (p<0.05), while that of MMP-9 evidently decreased in C group (p<0.05). Besides, no statistically significant difference was observed in the protein expression level of MMP-2 between C group and B group (p>0.05). Compared with that in A group, the apoptosis rate significantly increased in B group (p<0.001). In addition, the apoptosis rate was significantly lower in C group than that in B group, showing a statistically significant difference (p<0.01). CONCLUSIONS PP2A downregulates MMP-9 through the MAPK signaling pathway, thereby conducing to the recovery of SCI in rats.
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Affiliation(s)
- L Luo
- Department of Orthopaedic Hand Surgery, The Affiliated Hospital of Traditional Chinese Medicine of Southwest Medical University, Luzhou, China.
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Zhao WH, Ma Y, Wang H, Li K, Dong H, Liu WH, Liu YY, Jiang SQ, Luo L, Yang ZC. [Epidemiological characteristics of three local epidemics of COVID-19 in Guangzhou]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:2088-2095. [PMID: 34954969 DOI: 10.3760/cma.j.cn112338-20210728-00592] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To understand the epidemiological characteristics of three local COVID-19 epidemics in Guangzhou and provide reference for optimizing strategies and measures of COVID-19 prevention and control. Methods: The data of local COVID-19 cases in Guangzhou reported as of June 18, 2021 were collected from National Notifiable Disease Report System of China. The software Excel 2019 and SPSS 22.0 were applied for data cleaning and statistical analysis. Results: A total of 726 COVID-19 cases were reported in the three local epidemics in Guangzhou. In the epidemic associated with the outbreak of COVID-19 in Hubei province, 366 cases were reported. Most cases were female (51.6%, 189/366), aged 18-65 years (81.4%, 298/366), jobless/unemployed (32.2%, 118/366) and retired persons (20.2%,74/366). The initial symptoms of most cases were fever (71.6%, 250/349) and cough (60.7%, 212/349). In the epidemic associated with the imported COVID-19 cases from Africa, 207 cases were reported. Most cases were aged 18-40 years (72.9%, 151/207), male (69.6%, 144/207), and engaged in commercial services (62.3%,129/207). The initial symptoms of most cases were no obvious discomfort (55.6%, 15/27) and cough (37.0%, 10/27). In the epidemic associated with Delta variant of SARS-CoV-2, 153 cases were reported, in which women accounted for 58.8% (90/153), most cases were over 41 years old (64.7%,99/153), and retired persons accounted for the highest proportion (32.0%,49/153). The initial symptoms of most cases were cough (32.9%, 48/146) and no obvious discomfort (28.1%, 41/146). The household secondary attack rates of the three local epidemics were 11.2%, 5.7% and 11.5%, respectively. The median (P25, P75) of incubation periods were 6.5 (4.0,10.8) d, 4.0 (2.5, 6.0) d and 4.0 (3.0,5.0) d. The serial intervals median (P25, P75) were 4.0 (3.0, 8.0) d, 4.0 (2.5, 6.0) d and 3.0 (2.0,5.0) d. There were significant differences in gender, age, occupation, initial symptoms, household secondary attack rate and incubation period among the three local COVID-19 epidemics (all P<0.05). In the proportion of the case finding way, passive detection in patient treatment were mainly 44.3%(162/366) in the epidemic associated with the outbreak of COVID-19 in Hubei province,but active community case screening [58.5% (121/207) and 27.5% (24/153)] and close contact management in imported case were mostly [33.3% (69/207) and 67.3% (103/153)] in the epidemic associated with the imported COVID-19 cases from Africa and with Delta variant of SARS-CoV-2, respectively. Conclusions: Due to the different sources of infection, strain types and prevention and control strategies, the epidemiological characteristics of the three local COVID-19 epidemics in Guangzhou differed in demographics, clinical symptoms, transmission routes and case finding, which suggested that it is necessary to improve the key population and common symptom monitoring in the routine prevention and control of COVID-19 to prevent the reemerge of the epidemic.
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Affiliation(s)
- W H Zhao
- School of Public Health, Southern Medical University, Guangzhou 510515, China Department of Infectious Disease Prevention and Control, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y Ma
- Department of Infectious Disease Prevention and Control, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - H Wang
- Department of Infectious Disease Prevention and Control, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - K Li
- Department of Infectious Disease Prevention and Control, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - H Dong
- Department of Infectious Disease Prevention and Control, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - W H Liu
- Department of Infectious Disease Prevention and Control, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y Y Liu
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, China
| | - S Q Jiang
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, China
| | - L Luo
- Department of Infectious Disease Prevention and Control, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Z C Yang
- School of Public Health, Southern Medical University, Guangzhou 510515, China Department of Infectious Disease Prevention and Control, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
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Yang W, Wang Z, Luo L, Yang P, Sun D, Gao B. Role of miR-27a in the regulation of cellular function via the inhibition of MAP2K4 in patients with asthma. Hum Exp Toxicol 2021; 40:S77-S86. [PMID: 34219538 DOI: 10.1177/09603271211026738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Asthma is a respiratory disease with a clinically high incidence, and repeated attacks of asthma severely affect the quality of life and even pose a threat to health, leading to severe burdens on families and even the society. A thorough understanding of the pathogenesis of asthma is essential for the prevention and treatment of asthma. This study aimed to examine the effect of the microRNA miR-27a on asthma and its relationship with mitogen activated protein kinase 4 (MAP2K4). Patients with asthma admitted to our hospital from August 2016 to August 2018 and healthy participants in the same period were included in this prospective analysis. The mRNA expression levels of miR-27a and MAP2K4 in peripheral blood were determined. Airway smooth muscle cells (ASMCs) were used to study the effects of miR-27a and MAP2K4 on cell biological behavior. The relationship between miR-27a and MAP2K4 was verified using dual-luciferase reporter assay. miR-27a expression was increased and MAP2K4 mRNA expression was decreased in asthma (P < 0.05). Increasing miR-27a expression and inhibiting MAP2K4 expression could enhance the activity of ASMCs, whereas inhibiting miR-27a expression and increasing MAP2K4 expression had the opposite effect (P < 0.05). Dual-luciferase reporter assay results showed that the fluorescence activity of MAP2K4-wild type was inhibited by increased miR-27a expression (P < 0.05). miR-27a promotes the proliferation and invasion of ASMCs by targeting MAP2K4 and is involved in the occurrence of asthma.
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Affiliation(s)
- W Yang
- Department of Pulmonary Function Test, the Affiliated Shanghai Pulmonary Hospital of Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Z Wang
- Department of Respiratory, The Affiliated Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - L Luo
- Department of General Outpatient, Community Health Service Center of Xinzhuang, Shanghai, People's Republic of China
| | - P Yang
- Department of Respiratory, The Affiliated Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - D Sun
- Department of Toxicology, The Affiliated Shanghai Pulmonary Hospital of Tongji University School of Medicine, Shanghai, People's Republic of China
| | - B Gao
- Department of Respiratory Medicine, The Affiliated Shanghai Pulmonary Hospital of Tongji University School of Medicine, Shanghai, People's Republic of China
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Yu Q, Chen B, Li P, Luo L. Cell salvage for Rh-negative patients without anti-D immunoglobulin. Int J Obstet Anesth 2021; 49:103240. [PMID: 34840017 DOI: 10.1016/j.ijoa.2021.103240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/23/2021] [Accepted: 11/01/2021] [Indexed: 10/19/2022]
Affiliation(s)
- Q Yu
- Department of Anesthesiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, PR China; Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, PR China
| | - B Chen
- Department of Anesthesiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, PR China; Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, PR China
| | - P Li
- Department of Anesthesiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, PR China; Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, PR China
| | - L Luo
- Department of Anesthesiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, PR China; Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, PR China.
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Luo L, Srivastava A, Pasquali L, Meisgen F. 200 Genome-wide analysis of long non-coding RNA expression profiles in keratinocytes from psoriasis skin. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.08.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chu G, Yang X, Luo L, Feng W, Jiao W, Zhang X, Wang Y, Yang Z, Wang B, Li J, Niu H. Improved robot-assisted laparoscopic telesurgery: feasibility of network converged communication. Br J Surg 2021; 108:e377-e379. [PMID: 34529763 DOI: 10.1093/bjs/znab317] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 08/16/2021] [Indexed: 11/13/2022]
Abstract
The converged transmission-assisted network communication architecture used in this study could meet the requirements of telesurgery, and effectively guarantee the security and immediacy of communication. With the security, flexibility, and universality of the network converged transmission, the clinical practical application of telesurgery and telemedicine would step up to a higher level.
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Affiliation(s)
- G Chu
- Department of Urology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - X Yang
- Department of Urology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - L Luo
- Department of Urology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - W Feng
- Department of Anaesthesiology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - W Jiao
- Department of Urology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - X Zhang
- Department of Education and Training, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Y Wang
- Department of Urology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Z Yang
- Department of Urology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - B Wang
- Shandong Weigao Surgical Robot Company, Weihai, China
| | - J Li
- Key Laboratory for Mechanism Theory and Equipment Design of Ministry of Education, Tianjin University, Tianjin, China
| | - H Niu
- Department of Urology, Affiliated Hospital of Qingdao University, Qingdao, China
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Zhang WT, Liu D, Xie CJ, Shen D, Chen ZQ, Li ZH, Liu Y, Zhang XR, Chen PL, Zhong WF, Yang P, Huang QM, Luo L, Mao C. [Sensitivity and specificity of nucleic acid testing in close contacts of COVID-19 cases in Guangzhou]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1347-1352. [PMID: 34814552 DOI: 10.3760/cma.j.cn112338-20201211-01400] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: To analyze the sensitivity and specificity of SARS-CoV-2 nucleic acid testing in 20 348 close contacts of COVID-19 cases in different prevention and control stages in Guangzhou and to provide scientific evidence for optimizing epidemic response strategies. Methods: A total of 20 348 close contacts of COVID-19 cases in Guangzhou were traced between February 21 and September 22,2020. All the close contacts were tested for the nucleic acid of SARS-CoV-2. The sensitivity and specificity of nucleic acid testing and diagnosis in the different prevention and control stages were compared. Results: In 20 348 close contacts, 12 462 were males (61.24%), the median (P25,P75) of age of them was 31.0 years (23.0,43.0), the median number (P25,P75) of nucleic acid testing for them was 2.0 (1.0,3.0), and the median (P25,P75) of their quarantine days was 12.0 (8.0,13.0) days, respectively. A total of 256 COVID-19 cases were confirmed in the close contacts after seven nucleic acid tests. In the 1st, 2nd, 3rd and 7th nucleic acid testing, the sensitivity and specificity were 69.14% and 99.99% (177 cases confirmed), 89.84% and 99.99% (230 cases confirmed), 97.27% and 99.99% (249 cases confirmed), and 100.00% and 99.98%, respectively. In the three stages of COVID-19 prevention and control in China: domestic case stage, imported case stage, and imported case associated local epidemic stage, the sensitivity of the 1st nucleic acid testing was 70.68%, 68.00% and 67.35%, and the specificity was 99.98%, 100.00% and 100.00%, respectively. Conclusions: The sensitivity of nucleic acid testing in the close contacts at the different stages were consistent with slight decrease, which might be related to the increased proportion of asymptomatic infections in the late stage of epidemic prevention and control with COVID-19 in Guangzhou. It is suggested to give three nucleic acid tests to improve the sensitivity and reduce false negative risk.
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Affiliation(s)
- W T Zhang
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - D Liu
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - C J Xie
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 511430, China
| | - D Shen
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Z Q Chen
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 511430, China
| | - Z H Li
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Y Liu
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 511430, China
| | - X R Zhang
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - P L Chen
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - W F Zhong
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - P Yang
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Q M Huang
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - L Luo
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 511430, China
| | - C Mao
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
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Luo L, Zhang L, Wang Q. P–524 Is polycystic ovary syndrome really a risk factor for embryonic chromosomal aberrations? A multicenter retrospective cohort study. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.523] [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: 11/14/2022] Open
Abstract
Abstract
Study question
Does the rate of embryonic chromosomal aberrations increase in the setting of PCOS independent of maternal age and BMI?
Summary answer
Controlling for maternal age and BMI, embryonic chromosomal aberration rate was not significantly different with controlled women undergoing preimplantation genetic testing for monogenic defects (PGT-M).
What is known already
It has been reported that women with PCOS have higher risk of early spontaneous pregnancy loss, and it is well known that embryonic chromosomal abnormalities play an important role as a direct factor. However, whether PCOS women have increased risk of embryonic chromosomal aberrations remains inconclusive.
Study design, size, duration
A multicenter retrospective cohort study was undertaken examining the incidence of chromosomal abnormalities in blastocysts using next-generation sequencing (NGS) for women undergoing PGT-M with and without PCOS (1398 PGT cycles, 5577 blastocysts) from 3 university-affiliated IVF centers between 2015 and 2019. Participants/materials, setting, methods: The blastocyst formation rate and the incidence of chromosomal abnormalities were compared between 163 PCOS women and 1235 non-PCOS women. Main results and the role of chance: Stratification analysis by maternal age with matched BMI showed no differences with regard to blastocyst formation rates for women with and without PCOS aged 20–29y (55.0% vs. 58.5%), 30–34y (54.7% vs. 58.9%) and >35y (56.7% vs. 52.4%), P > 0.05. The total embryonic chromosomal aberration rates for women aged 20–29y, 30–34y and >35y with and without PCOS were were also comparable, which were respectively 121/331 (36.4%) vs. 496/1209 (41.0%); 89/251 (35.5%) vs. 903/2175 (41.5%) and 72/130 (55.4%) vs. 789/1481 (53.3%), P > 0.05. Multivariate regression showed that controlling for maternal age and BMI, PCOS were not an independent risk factor for embryonic chromosomal abnormalities (OR = 0.89, 95% CI = 0.62 ∼ 1.35, P = 0.73).
Limitations, reasons for caution
The study is mainly limited by its retrospective design and relatively smaller sample size for PCOS group which carries inherent potential for bias (i.e. misclassifification and errors due to inadequate clinical notes).
Wider implications of the findings: Our results indicated that chromosomal abnormalities might not be the most important causal factor for the increased risk of early pregnancy loss for women with PCOS. By contrary, the non-chromosomal embryonic aberrations and/or maternal intrauterine factors could play more important role and needs to be clarifified
Trial registration number
not applicable’
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Affiliation(s)
- L Luo
- 1st affiliated hospital of Sun Yat-Sen University, Center of Reproductive Medicine, Guangzhou, China
| | - L Zhang
- 1st affiliated hospital of Sun Yat-Sen University, Center of Reproductive Medicine, Guangzhou, China
| | - Q Wang
- 1st affiliated hospital of Sun Yat-Sen University, Center of Reproductive Medicine, Guangzhou, China
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Kurashov V, Milanovsky G, Luo L, Martin A, Semenov AY, Savikhin S, Cherepanov DA, Golbeck JH, Xu W. Conserved residue PsaB-Trp673 is essential for high-efficiency electron transfer between the phylloquinones and the iron-sulfur clusters in Photosystem I. Photosynth Res 2021; 148:161-180. [PMID: 33991284 DOI: 10.1007/s11120-021-00839-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 04/23/2021] [Indexed: 06/12/2023]
Abstract
Despite the high level of symmetry between the PsaA and PsaB polypeptides in Photosystem I, some amino acids pairs are strikingly different, such as PsaA-Gly693 and PsaB-Trp673, which are located near a cluster of 11 water molecules between the A1A and A1B quinones and the FX iron-sulfur cluster. In this work, we changed PsaB-Trp673 to PsaB-Phe673 in Synechocystis sp. PCC 6803. The variant contains ~ 85% of wild-type (WT) levels of Photosystem I but is unable to grow photoautotrophically. Both time-resolved and steady-state optical measurements show that in the PsaB-W673F variant less than 50% of the electrons reach the terminal iron-sulfur clusters FA and FB; the majority of the electrons recombine from A1A- and A1B-. However, in those reaction centers which pass electrons forward the transfer is heterogeneous: a minor population shows electron transfer rates from A1A- and A1B- to FX slightly slower than that of the WT, whereas a major population shows forward electron transfer rates to FX slowed to the ~ 10 µs time range. Competition between relatively similar forward and backward rates of electron transfer from the quinones to the FX cluster account for the relatively low yield of long-lived charge separation in the PsaB-W673F variant. A higher water content and its increased mobility observed in MD simulations in the interquinone cavity of the PsaB-W673F variant shifts the pK of PsaB-Asp575 and allows its deprotonation in situ. The heterogeneity found may be rooted in protonation state of PsaB-Asp575, which controls whether electron transfer can proceed beyond the phylloquinone cofactors.
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Affiliation(s)
- Vasily Kurashov
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, 16802, USA
| | - George Milanovsky
- A.N. Belozersky Institute of Physical-Chemical Biology, Moscow State University, Leninskie Gory, 1, Building 40, Moscow, Russia, 119992
| | - Lujun Luo
- Department of Chemistry, University of Louisiana at Lafayette, Lafayette, LA, 70504, USA
| | - Antoine Martin
- Department of Physics, Purdue University, West Lafayette, IN, USA
| | - Alexey Yu Semenov
- A.N. Belozersky Institute of Physical-Chemical Biology, Moscow State University, Leninskie Gory, 1, Building 40, Moscow, Russia, 119992
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygina st, 4, Moscow, Russia, 117977
| | - Sergei Savikhin
- Department of Physics, Purdue University, West Lafayette, IN, USA
| | - Dmitry A Cherepanov
- N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygina st, 4, Moscow, Russia, 117977.
| | - John H Golbeck
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, 16802, USA.
- Department of Chemistry, The Pennsylvania State University, University Park, PA, 16802, USA.
| | - Wu Xu
- Department of Chemistry, University of Louisiana at Lafayette, Lafayette, LA, 70504, USA.
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Tang J, He G, Yang Y, Li Q, He Y, Yu C, Luo L. Histological analysis of spermatogenesis and the germ cell seasonal development within the testis of domesticated tree shrews (Tupaia belangeri chinensis). Folia Morphol (Warsz) 2021; 81:412-420. [PMID: 33997948 DOI: 10.5603/fm.a2021.0048] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 11/25/2022]
Abstract
This study aimed to address the lack of information on the male germ cell seasonal development of domesticated tree shrews (Tupaia belangeri chinensis). Testicular tissues were collected from 60 tree shrews (n=5 per month). The ultrastructures of the testes and spermatids were examined via transmission electron microscopy. Apoptosis of spermatogenic cells was measured through terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining. The expression of proliferation factors, namely, proliferating cell nuclear antigen (PCNA) and Ki67, in testicular tissues was assayed through immunohistochemistry. Spermatids ultrastructure showed seasonal differences, and spermatogenesis was relatively active in June and July and relatively stagnant from October to November. The percentage of TUNEL-positive germ cells was less during October and November, while greater in July than other phases. The number of PCNA-nucleus-positive germ cells was most in June and July, but with cytoplasm staining from October to November. Ki67 presented positive expression in the testes from April to September, with highest expression in June, but with no expression from October to March. In summary, there are seasonal differences in tissue morphology related to spermatogenesis in domesticated tree shrews. PCNA expression and Ki67 expression are good indicators of seasonal differences in male germ cells.
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Affiliation(s)
- J Tang
- Kunming Medical University, No. 1168 Chunrong West Road, Yuhua Street, Chenggong, Kunming, 650032 Kunming, China.,Kunming Maternity and Child Health Hospital, Kunming, China
| | - G He
- Kunming Medical University, No. 1168 Chunrong West Road, Yuhua Street, Chenggong, Kunming, 650032 Kunming, China.,Yunnan Maternal and Child Health Care Hospital, Kunming, China
| | - Y Yang
- Kunming Medical University, No. 1168 Chunrong West Road, Yuhua Street, Chenggong, Kunming, 650032 Kunming, China
| | - Q Li
- Kunming Medical University, No. 1168 Chunrong West Road, Yuhua Street, Chenggong, Kunming, 650032 Kunming, China
| | - Y He
- Kunming Medical University, No. 1168 Chunrong West Road, Yuhua Street, Chenggong, Kunming, 650032 Kunming, China
| | - C Yu
- Kunming Medical University, No. 1168 Chunrong West Road, Yuhua Street, Chenggong, Kunming, 650032 Kunming, China
| | - L Luo
- Kunming Medical University, No. 1168 Chunrong West Road, Yuhua Street, Chenggong, Kunming, 650032 Kunming, China.
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Jiang LY, Liu Y, Su WZ, Luo L, Cao YM, Liu WH, Di B, Zhang ZB. [Spatial autocorrelation of dengue cases and molecular biological characteristics of envelope gene of dengue virus in Guangzhou, 2019]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:878-885. [PMID: 34814482 DOI: 10.3760/cma.j.cn112338-20201015-01238] [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: 06/13/2023]
Abstract
Objective: Analyze epidemiological situation of dengue fever,and survey impacts of four serotypes dengue viruses in Guangzhou, 2019. Methods: Information of patients was collected in Notifiable Infectious Disease Report System (NIDRS). Spatial autocorrelation of dengue cases was evaluated using ArcGIS version 10.2. Serum samples were tested by real-time PCR. Virus strains were isolated from positive sera. Then E gene was sequenced. Phylogenetic trees were including PhyMLsoftwarev 3.1. Results: A total of 1 655 dengue cases, consisted of 1 382 local cases and 273 imported cases, was confirmed in 2019. The incidence was 11.10 per 100 000 dengue cases were autocorrelated in Guangzhou. There were 18 high-high clusters. Most of the imported dengue cases were imported from Southeast Asian countries (86.08%,235/273) and African countries (2.56%,7/273). Of 749 serum samples detected by real-time PCR, the positive rate was 93.06% (697/749). Four hundred and sixty-four dengue virus strains had been isolated in 2019. Compared with data from the genotype tree of the former years, no genotype shift was discovered. Serotype 1 was still predominant. Serotype 2 was the significant strain in Baiyun district and Liwan district. Conclusions: Dengue fever was spreading all over Guangzhou in 2019. The suburban areas, which played a more critical role in causing the spread and outbreak of dengue fever, should be given more prominence. Inspection at ports should be enforced to prevent importing cases from African countries and Southeast Asian countries. The risk of serotype 2 cannot be overlooked. Four serotypes dengue viruses prevailed simultaneously in Guangzhou, which warns us to take precaution of severe dengue outbreaks.
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Affiliation(s)
- L Y Jiang
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y Liu
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - W Z Su
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - L Luo
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y M Cao
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - W H Liu
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - B Di
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Z B Zhang
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
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Gibbs D, Thomas N, Orlow I, Kanetsky P, Luo L, Cust A, Begg C, Berwick M, Ward S. 526 Functional, inherited vitamin D-binding protein variants associated with mortality among melanoma patients. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.552] [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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Davari D, Orlow I, Kanetsky P, Luo L, Busam K, Cust A, Begg C, Berwick M, Thomas N. 523 ANRIL inherited variants associated with primary melanoma TIL grade. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.549] [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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Luo L, Yang Y, Gong Q, Li F. Distinct alternations of brain functional network dynamics in obsessive-compulsive disorder and schizophrenia. Eur Psychiatry 2021. [PMCID: PMC9471499 DOI: 10.1192/j.eurpsy.2021.430] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Obsessive-compulsive disorder (OCD) and schizophrenia (SZ) are both severe psychiatric disorders. Though these two disorders have distinct typical symptoms, there are partial polygenic overlap and comorbidity between the two disorders. However, few studies have explored the shared and disorder-specific brain function underlying the neural pathophysiology of the two disorders, especially in the aspect of dynamics. Objectives To explore the abnormal characteristics of the dynamic functional connectivity (dFC) in OCD and SZ as well as the association between dFC metrics and symptom severity. Methods The resting state functional magnetic resonance imaging data of 31 patients with OCD, 49 patients with SZ, and 45 healthy controls were analyzed using independent component analysis to obtain independent components (ICs) and assigned them into eight brain networks (Figure 1), then used the sliding-window approach to generate dFC matrices. Using k-means clustering, we obtained three reoccurring dFC states (Figure 2), and state transition metrics were obtained![]() Results In a sparsely connected state (state 1), SZ showed both increased fractional time and mean dwell time than controls (P=0.047 and P=0.033) and OCD (P=0.001 and P=0.003). In a state characterized by negative FC between networks (state 2), OCD showed both increased fractional time and mean dwell time than controls (P=0.032 and P=0.013) and SZ (P=0.005 and P=0.003). Moreover, the fractional time of state 2 was positively correlated with anxiety scores in OCD (r=0.535, P=0.021, FDR corrected) (Figure 3).![]() ![]() Conclusions OCD and SZ patients showed distinct alternations of brain functional dynamics. Disclosure No significant relationships.
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You W, Luo L, Li F, Gong Q. Altered brain functional dynamics in auditory and visual networks in schizophrenia. Eur Psychiatry 2021. [PMCID: PMC9471729 DOI: 10.1192/j.eurpsy.2021.428] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Introduction One of the most perplexing and characteristic symptoms of the schizophrenia (SZ) patients is hallucination. The occurrence of hallucinations to be associated with altered activity in the auditory and visual cortex but is not well understood from the brain functional network dynamics in SZ. Objectives To explore the brain abnormal basis of hallucinations in SZ with the dynamic functional connectivity (dFC). Methods Using magnetic resonance imaging for 83 SZ patients and 83 matched healthy controls and independent component analysis, 52 independent components (ICs) were identified as nodes and assigned into eight intrinsic connectivity networks (Figure 1A). Subsequently, we established dFC matrices and clustered them into four discrete states (Figure 1B) and three state transition metrics were obtained. To further explore the changes in the centrality of each component, eigenvector centrality (EC) was calculated and its time-varying was evaluated.![]() Results Compared to controls with FDR correction, we found that patients had more mean dwell times and fractional time in state 1 (P=0.0081 and P=0.0018), mainly with hypoconnectivity between auditory and visual network and other networks and hyperconnectivity between language and default-mode network (DMN). While, patients had less dwell times and fractional time in state 3 (P=0.0018 and P=0.0009), and decreased FC between visual network and executive control network (ECN) and increased FC between ECN and DMN than controls (Figure 2).![]() EC statistics showed that SZs displayed increased temporal dynamics in visual-related regions (Figure 3).![]() Conclusions SZ was mainly manifested as altered dFC and temporal variability of nodal centrality in auditory and visual networks. Disclosure No significant relationships.
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Luo L, Yang Y, Gong Q, Li F. Different alternations of static and dynamic brain regional topological metrics in schizophrenia and obsessive-compulsive disorder. Eur Psychiatry 2021. [PMCID: PMC9475567 DOI: 10.1192/j.eurpsy.2021.1397] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Though schizophrenia (SZ) and obsessive-compulsive disorder (OCD) are conceptualized as distinct clinical entities, they do have notable symptom overlap and a tight association. Graph-theoretical analysis of the brain connectome provides more indicators to describe the functional organization of the brain, which may help us understand the shared and disorder-specific neural basis of the two disorders. Objectives To explore the static and dynamic topological organization of OCD and SZ as well as the relationship between topological metrics and clinical variables. Methods Resting state functional magnetic resonance imaging data of 31 OCD patients, 49 SZ patients, and 45 healthy controls (HC) were involved in this study (Table 1). Using independent component analysis to obtain independent components (ICs) (Figure 1), which were defined as nodes for static and dynamic topological analysis.![]() ![]() Results Static analysis showed the global efficiency of SZ was higher than HC. For nodal degree centrality, OCD exhibited decreased degree centrality in IC59 (located in visiual network) (P = 0.03) and increased degree centrality in IC38 (located in salience network) (P = 0.002) compared with HC. Dynamic analysis showed OCD exhibited decreased dynamics of degree centrality in IC38 (P = 0.003) compared with HC, which showed a negative correlation with clinical scores in OCD. While SZ showed decreased dynamics of degree centrality in IC76 (located in sensory motor network) compared with OCD (P=0.009), which showed a positive correlation with clinical scores in SZ (Figure 2).![]() Conclusions These changes are suggestive of disorder-specific alternation of static and dynamic brain topological organization in OCD and SZ.
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Luo L, Wang Y, Zhang S, Guo L, Jia G, Lin W, Gao Z, Gao Y, Sun T. Preparation and characterization of selenium-rich polysaccharide from Phellinus igniarius and its effects on wound healing. Carbohydr Polym 2021; 264:117982. [PMID: 33910711 DOI: 10.1016/j.carbpol.2021.117982] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 03/15/2021] [Accepted: 03/21/2021] [Indexed: 01/07/2023]
Abstract
The modified of polysaccharides show various bio-activities. In our work, Phellinus igniarius Selenium-enriched mycelias polysaccharides (PSeP) were prepared from Phellinus igniarius, and its antioxidant and anti-inflammatory effects on injured mice were evaluated. The selenium content and physical properties of polysaccharides were characterized by GC, HPGPC, and FT-IR analysis. The results showed that PSeP could reduce reactive oxygen species (ROS) levels, myeloperoxidase (MPO) activity as well as malondialdehyde (MDA) content. Meanwhile, it increased the enzyme activities of glutathione peroxidase (GSH-Px) and catalase (CAT). Finally, it showed obvious wound healing effects in vivo. Moreover, PSeP could clear the ROS without obvious cytotoxicity. PSeP could further improve its ability to clear ROS level to promote skin wound healing in mice three days in advance.
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Affiliation(s)
- Lujun Luo
- Shandong Key Laboratory of Proteins and Peptides Pharmaceutical Engineering, Shandong Universities Key Laboratory of Biopharmaceuticals, School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China
| | - Yuxia Wang
- School of Pharmacy, Weifang Medical University, Weifang, 261053, Shandong, China
| | - Sai Zhang
- Shandong Key Laboratory of Proteins and Peptides Pharmaceutical Engineering, Shandong Universities Key Laboratory of Biopharmaceuticals, School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China
| | - Li Guo
- Shandong Key Laboratory of Proteins and Peptides Pharmaceutical Engineering, Shandong Universities Key Laboratory of Biopharmaceuticals, School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China
| | - Guangtao Jia
- Shandong Key Laboratory of Proteins and Peptides Pharmaceutical Engineering, Shandong Universities Key Laboratory of Biopharmaceuticals, School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China
| | - Weiping Lin
- Shandong Key Laboratory of Proteins and Peptides Pharmaceutical Engineering, Shandong Universities Key Laboratory of Biopharmaceuticals, School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China
| | - Zhiqin Gao
- Shandong Key Laboratory of Proteins and Peptides Pharmaceutical Engineering, Shandong Universities Key Laboratory of Biopharmaceuticals, School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China
| | - Yuanyuan Gao
- School of Pharmacy, Weifang Medical University, Weifang, 261053, Shandong, China.
| | - Tongyi Sun
- Shandong Key Laboratory of Proteins and Peptides Pharmaceutical Engineering, Shandong Universities Key Laboratory of Biopharmaceuticals, School of Life Science and Technology, Weifang Medical University, Weifang, 261053, China.
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