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Shen J, Qin H, Li K, Ding H, Chen X, Peng M, Jiang X, Han Y. The angelica Polysaccharide: a review of phytochemistry, pharmacology and beneficial effects on systemic diseases. Int Immunopharmacol 2024; 133:112025. [PMID: 38677093 DOI: 10.1016/j.intimp.2024.112025] [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: 01/09/2024] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 04/29/2024]
Abstract
Angelica sinensis is a perennial herb widely distributed around the world, and angelica polysaccharide (APS) is a polysaccharide extracted from Angelica sinensis. APS is one of the main active components of Angelica sinensis. A large number of studies have shown that APS has hematopoietic, promoting blood circulation, radiation resistance, lowering blood glucose, enhancing the body immunity and other pharmacological effects in a variety of diseases. However, different extraction methods and extraction sites greatly affect the efficacy of APS. In recent years, with the emerging of new technologies, there are more and more studies on the combined application and structural modification of APS. In order to promote the comprehensive development and in-depth application of APS, this narrative review systematically summarizes the effects of different drying methods and extraction sites on the biological activity of APS, and the application of APS in the treatment of diseases, hoping to provide a scientific basis for the experimental study and clinical application of APS.
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Affiliation(s)
- Jie Shen
- School of Pharmacy, Qingdao University, Qingdao, China
| | - Huan Qin
- School of Basic Medical Sciences, Qingdao, China
| | - Kangkang Li
- School of Basic Medical Sciences, Qingdao, China
| | - Huiqing Ding
- School of Basic Medical Sciences, Qingdao, China.
| | - Xuehong Chen
- School of Basic Medical Sciences, Qingdao, China.
| | - Meiyu Peng
- School of Basic Medical Sciences, Shandong Second Medical University, China
| | - Xin Jiang
- School of Basic Medical Sciences, Qingdao, China.
| | - Yantao Han
- School of Basic Medical Sciences, Qingdao, China.
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Zhu WY, Li YH, Zhang T, Peng M, Feng RE, Shi JH. [Diffuse thickening of bronchial walls with multiple nodular mucosal protrusions]. Zhonghua Jie He He Hu Xi Za Zhi 2024; 47:346-351. [PMID: 38599810 DOI: 10.3760/cma.j.cn112147-20230913-00156] [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: 04/12/2024]
Abstract
A 58-year-old woman presented with a six-month history of nasal congestion, sore throat and cough, and a five-month history of dyspnea. She had a history of xerostomia for one year. On examination, the bilateral submandibular gland and parotid glands were enlarged. Parotid and anterior cervical lymph nodes were palpable. There were rales in both lungs. The rest of the physical examination was unremarkable. Sialographic analysis showed normal caliber in the main duct, stenosis in secondary ducts, and dilation in the proximal ducts. Minor salivary gland biopsy demonstrated periductal lymphocytic infiltration. Chest computed tomography (CT) showed diffuse thickening of the tracheal and bilateral bronchial walls. Bronchoscopy revealed macroscopic multiple nodules mainly in the trachea and bilateral main bronchus. Endobronchial biopsy showed lymphocytic infiltration in the bronchial submucosa. She was diagnosed with Sjögren's syndrome and treated with glucocorticoids. The dose of prednisone was started at 30 mg/d and tapered gradually. Following treatment, the patient's clinical condition improved dramatically, with shrinkage of the enlarged lymph nodes, bilateral submandibular and parotid glands. A repeated chest CT scan revealed improvement of the tracheal and bilateral bronchial thickening. Multiple nodules in the airway regressed, as evidenced by repeated bronchoscopic examination. The final diagnosis was a large-airway disease associated with Sjögren's syndrome.Among airway diseases in Sjögren's syndrome, peripheral airway diseases including bronchiolitis and bronchiectasis are common; however, central airway lesions in Sjögren's syndrome, especially with macroscopic nodules, are rare. In this case, we demonstrated tracheal and endobronchial nodules in Sjögren's syndrome as determined by clinical features, CT scan, bronchoscopy, and response to therapy.
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Affiliation(s)
- W Y Zhu
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y H Li
- Department of Pulmonary and Critical Care Medicine, Affiliated Hospital of Qinghai University, Qinghai 810001
| | - T Zhang
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - M Peng
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - R E Feng
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - J H Shi
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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Wang Y, Hu D, Liu Y, Yang L, Huang J, Zhou J, Guo L, Fan X, Huang X, Peng M, Cheng C, Zhang W, Feng R, Tian X, Yu S, Xu KF. Sporadic lymphangioleiomyomatosis in a man with somatic mosaicism of TSC2 mutations, a case report. QJM 2024; 117:75-76. [PMID: 37843443 PMCID: PMC10849871 DOI: 10.1093/qjmed/hcad235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Indexed: 10/17/2023] Open
Affiliation(s)
- Y Wang
- Department of Pulmonary and Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - D Hu
- Department of Pulmonary and Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Liu
- McKusick-Zhang Center for Genetic Medicine, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - L Yang
- Department of Pulmonary and Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Huang
- Department of Pulmonary and Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Zhou
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - L Guo
- Department of Dermatology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Center, Beijing, China
| | - X Fan
- Clinical Genome Center, Guangzhou KingMed Diagnostics Group Co., Ltd., Guangdong, China
| | - X Huang
- Clinical Genome Center, Guangzhou KingMed Diagnostics Group Co., Ltd., Guangdong, China
| | - M Peng
- Department of Pulmonary and Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - C Cheng
- Department of Pulmonary and Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - W Zhang
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - R Feng
- Department of Pathology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Tian
- Department of Pulmonary and Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - S Yu
- Clinical Genome Center, Guangzhou KingMed Diagnostics Group Co., Ltd., Guangdong, China
| | - K -F Xu
- Department of Pulmonary and Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Zhang M, Wu Y, Qin Y, Shen J, Cui Z, Lei F, Zhang K, Li B, Liang S, Peng M. Dual regulation effect and mechanism of human myeloid-derived suppressor cells on anticolorectal cancer cells activity of Vγ9Vδ2 T cells. Cell Biochem Funct 2024; 42:e3929. [PMID: 38269504 DOI: 10.1002/cbf.3929] [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: 09/12/2023] [Revised: 12/14/2023] [Accepted: 01/05/2024] [Indexed: 01/26/2024]
Abstract
Myeloid-derived suppressor cells (MDSC) are a group of immature inhibitory cells of bone marrow origin. Human γδ T cells (mainly Vγ9Vδ2 T cells) have emerged as dominant candidates for cancer immunotherapy because of their unique recognition pattern and broad killing activity against tumor cells. Intestinal mucosal intraepithelial lymphocytes are almost exclusively γδ T cells, so it plays an important role in inhibiting the development of colorectal cancer. In this study, we investigated the effects and molecular mechanism of human MDSC on anticolorectal cancer cells activity of Vγ9Vδ2 T cells. Our results suggested that MDSC can reduce the NKG2D expression of Vγ9Vδ2 T cells through direct cell-cell contact, which is associated with membrane-type transforming growth factor-β. In contrast, MDSC can increase Vγ9Vδ2 T cells activation and production of IFN-γ, perforin, Granzyme B through direct cell-cell contact. This may be related to the upregulation of T-bet in Vγ9Vδ2 T cells by MDSC. However, MDSC had a dominant negative regulatory effect on the anticolorectal cancer cells activity of Vγ9Vδ2 T cells. Our study provides a theoretical basis for the immune regulatory function of human MDSC on γδ T cells. This will be conducive to the clinical development of a new antitumor therapy strategy.
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Affiliation(s)
- Mengyu Zhang
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, China
| | - Yuanyuan Wu
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, China
| | - Yahan Qin
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, China
| | - Jie Shen
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, China
| | - Zhao Cui
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, China
| | - Fan Lei
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, China
| | - Ke Zhang
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, China
| | - Baiqing Li
- Department of Immunology, Bengbu Medical College, Bengbu, China
| | - Shujuan Liang
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, China
| | - Meiyu Peng
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, China
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Yang J, Lu TX, Peng M, Liu J, Jiao YF, Jing H. Multi-field-driven optomechanical entanglement. Opt Express 2024; 32:785-794. [PMID: 38175098 DOI: 10.1364/oe.509811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 12/08/2023] [Indexed: 01/05/2024]
Abstract
Cavity optomechanical (COM) entanglement, playing an essential role in building quantum networks and enhancing quantum sensors, is usually weak and easily destroyed by noises. As feasible and effective ways to overcome this obstacle, optical or mechanical parametric modulations have been used to improve the quality of quantum squeezing or entanglement in various COM systems. However, the possibility of combining these powerful means to enhance COM entanglement has yet to be explored. Here, we fill this gap by studying a COM system containing an intra-cavity optical parametric amplifier (OPA), driven optically and mechanically. By tuning the relative strength and the frequency mismatch of optical and mechanical driving fields, we find that constructive interference can emerge and significantly improve the strength of COM entanglement and its robustness to thermal noises. This work sheds what we believe to be a new light on preparing and protecting quantum states with multi-field driven COM systems for diverse applications.
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Ma Y, Zhang K, Wu Y, Fu X, Liang S, Peng M, Guo J, Liu M. Revisiting the relationship between complement and ulcerative colitis. Scand J Immunol 2023; 98:e13329. [PMID: 38441324 DOI: 10.1111/sji.13329] [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: 05/09/2023] [Revised: 08/13/2023] [Accepted: 08/28/2023] [Indexed: 03/07/2024]
Abstract
Ulcerative colitis (UC) is an inflammatory bowel disorder (IBD) characterized by relapsing chronic inflammation of the colon that causes continuous mucosal inflammation. The global incidence of UC is steadily increasing. Immune mechanisms are involved in the pathogenesis of UC, of which complement is shown to play a critical role by inducing local chronic inflammatory responses that promote tissue damage. However, the function of various complement components in the development of UC is complex and even paradoxical. Some components (e.g. C1q, CD46, CD55, CD59, and C6) are shown to safeguard the intestinal barrier and reduce intestinal inflammation, while others (e.g. C3, C5, C5a) can exacerbate intestinal damage and accelerate the development of UC. The complement system was originally thought to function primarily in an extracellular mode; however, recent evidence indicates that it can also act intracellularly as the complosome. The current study provides an overview of current studies on complement and its role in the development of UC. While there are few studies that describe how intracellular complement contributes to UC, we discuss potential future directions based on related publications. We also highlight novel methods that target complement for IBD treatment.
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Affiliation(s)
- Yujie Ma
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Kaicheng Zhang
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Yuanyuan Wu
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Xiaoyan Fu
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Shujuan Liang
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Meiyu Peng
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Juntang Guo
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Meifang Liu
- Key Laboratory of Immune Microenvironment and Inflammatory Disease Research in Universities of Shandong Province, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
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Wu LY, Zhang KY, Peng M, Gong J, Yan H. New Limits on Exotic Spin-Dependent Interactions at Astronomical Distances. Phys Rev Lett 2023; 131:091002. [PMID: 37721836 DOI: 10.1103/physrevlett.131.091002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 06/14/2023] [Accepted: 07/18/2023] [Indexed: 09/20/2023]
Abstract
Exotic spin-dependent interactions involving new light particles address key questions in modern physics. Interactions between polarized neutrons (n) and unpolarized nucleons (N) occur in three forms: g_{S}^{N}g_{P}^{n}σ·r, g_{V}^{N}g_{A}^{n}σ·v, and g_{A}^{N}g_{A}^{n}σ·v×r, where σ is the spin and g's are the corresponding coupling constants for scalar, pseudoscalar, vector, and axial-vector vertexes. If such interactions exist, the Sun and Moon could induce sidereal variations of effective fields in laboratories. By analyzing existing data from laboratory measurements on Lorentz and CPT violation, we derive new experimental upper limits on these exotic spin-dependent interactions at astronomical ranges. Our limits on g_{S}^{N}g_{P}^{n} surpass the previous combined astrophysical-laboratory limits, setting the most stringent experimental constraints to date. We also report new constraints on vector-axial-vector and axial-axial-vector interactions at astronomical scales, with vector-axial-vector limits improved by ∼12 orders of magnitude. We extend our analysis to Hari Dass interactions and obtain new constraints.
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Affiliation(s)
- L Y Wu
- Key Laboratory of Neutron Physics, Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900, Sichuan, China and Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900, Sichuan, China
| | - K Y Zhang
- Key Laboratory of Neutron Physics, Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900, Sichuan, China and Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900, Sichuan, China
| | - M Peng
- Key Laboratory of Neutron Physics, Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900, Sichuan, China and Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900, Sichuan, China
| | - J Gong
- Key Laboratory of Neutron Physics, Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900, Sichuan, China and Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900, Sichuan, China
| | - H Yan
- Key Laboratory of Neutron Physics, Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900, Sichuan, China and Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900, Sichuan, China
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Zhang T, Kui SY, Yang JN, Li YY, Xue PJ, Peng M, Yang J, Xu J, Shi JH. [Hypercapnia under controlled mechanical ventilation in patients with high-risk acute pulmonary thromboembolism]. Zhonghua Jie He He Hu Xi Za Zhi 2023; 46:454-459. [PMID: 37147806 DOI: 10.3760/cma.j.cn112147-20220705-00569] [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: 05/07/2023]
Abstract
Objective: To evaluate the variation of arterial partial pressure of carbon dioxide (PaCO2) in patients with high-risk pulmonary embolism under mechanical ventilation. Methods: We retrospectively analyzed the cases of high-risk pulmonary embolism who underwent intravenous thrombolysis in Peking Union Medical College Hospital from January 1, 2012, to May 1, 2022. The enrolled patients were divided into a mechanical-ventilated group and an active-breathing group according to whether they received invasive mechanical ventilation or not. The level of PaCO2 under active breathing between the two groups, the changes in PaCO2 before intubation, after intubation and after thrombolysis in the mechanical-ventilated group were compared. The 14-day all-cause mortality of the two groups was calculated and compared. Results: A total of 49 patients with high-risk pulmonary embolism were enrolled, including 22 patients in the mechanical-ventilated group and 27 patients in the active-breathing group. Before intubation, PaCO2 in both groups was lower than normal without statistically significant difference between the two groups. After effective thrombolysis therapy, PaCO2 in both groups recovered to the normal range. In the mechanical-ventilated group, PaCO2 significantly increased 11-147 min after intubation and returned to the normal range after thrombolysis therapy. The 14-day mortality in the mechanical-ventilated group was 54.5%, while all patients in the active-breathing group survived. Conclusions: Under mechanical controlled ventilation, patients with high-risk pulmonary embolism could represent hypercapnia which resolved after effective thrombolytic therapy. In mechanical ventilated patients with sudden-onset hypoxemia and hypercapnia, the possibility of high-risk pulmonary embolism should be considered.
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Affiliation(s)
- T Zhang
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - S Y Kui
- Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J N Yang
- Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Y Li
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - P J Xue
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M Peng
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Yang
- Department of Emergency Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Xu
- Department of Emergency Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J H Shi
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
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Zhang J, Zhang FJ, Zhang L, Xian DX, Wang SA, Peng M, Liu Y. Identification of key genes and molecular pathways in type 2 diabetes mellitus and polycystic ovary syndrome via bioinformatics analyses. Eur Rev Med Pharmacol Sci 2023; 27:3255-3269. [PMID: 37140276 DOI: 10.26355/eurrev_202304_32097] [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: 05/05/2023]
Abstract
OBJECTIVE Type 2 diabetes mellitus (T2DM) and polycystic ovary syndrome (PCOS) are highly prevalent endocrine system diseases. However, studies on the molecular mechanisms of T2DM and PCOS at the transcriptomic level are still few. Thus, we aimed to reveal the potential common genetic and molecular pathways between T2DM and PCOS via bioinformatics analyses. MATERIALS AND METHODS We downloaded the GSE10946 and GSE18732 datasets for T2DM and PCOS, respectively, from the National Center for Biotechnology Information's Gene Expression Omnibus (GEO) database. These datasets were subjected to integrated differential and weighted gene co-expression network analyses (WGCNA) to screen common genes. Thereafter, functional enrichment and disease gene association analyses were performed, transcription factor (TF)-gene and TF-miRNA-gene regulatory networks were constructed, and finally, the relevant target drugs were identified. RESULTS We identified common genes (BIRC3, DEPTOR, TNNL3, ADRA2A) in T2DM and PCOS. Pathway enrichment analysis depicted that the common genes were enriched in smooth muscle contraction, channel inhibitor activity, apoptosis, and tumor necrosis factor (TNF) signaling pathways. TFs such as SP7, KLF8, HCFC1, IRF1, and MLLT1 played key roles in TF regulatory networks. Orlistat was indicated to be an important gene-targeting drug. CONCLUSIONS This study is the first study to explore four diagnostic biomarkers and gene regulatory networks for T2DM and PCOS. The findings of our study provide novel insights into the diagnosis and treatment of T2DM and PCOS.
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Affiliation(s)
- J Zhang
- Department of Pediatrics, Shandong Second Provincial General Hospital, Jinan, China.
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Chen W, Chen J, Peng M, Luo J, Chen Y, Qiu H, Li J. Successful Eisenmenger syndrome-targeted drug therapy in pregnant women: a case series and literature review. BJOG 2023. [PMID: 36802098 DOI: 10.1111/1471-0528.17427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 02/04/2023] [Accepted: 02/09/2023] [Indexed: 02/20/2023]
Abstract
OBJECTIVE To clarify the real-world outcomes in pregnant women with Eisenmenger syndrome (ES) in the new therapeutic era and provide a literature review. DESIGN Retrospective case and literature review. SETTING Tertiary referral hospital (The Second Xiangya Hospital of Central South University). SAMPLE Thirteen women with ES delivered between 2011 and 2021. METHODS Respective study and literature reviews. MAIN OUTCOMES MEASURES Maternal and neonatal mortality and morbidity. RESULTS 12/13 (92%) pregnant women were treated with targeted drugs. 9/13 (69%) of patients had heart failure, but no maternal deaths occurred. 12/13 (92%) of women chose caesarean delivery. One pregnant woman gave birth at 37+1 weeks, and the remaining 12 (92%) patients had preterm birth. 10/13 (77%) women gave birth to live infants, of which 9/10 (90%) were low birthweight infants with a mean birthweight of 1575 g. The infant mortality rate was 1/10 (10%). Cardiac functional class improved during pregnancy, probably due to therapy; 11/13 (85%) of the pregnant women were in cardiac functional level III/IV at admission and 12 (92%) were in cardiac functional class II/III at discharge. Our literature review identified 72 cases of pregnancy with ES from 11 studies, which were characterised by a low rate of targeted drug use (28%) and a high maternal mortality rate of 24% in the perinatal period. CONCLUSION Our case series and literature review suggest that targeted drugs may be key to improving maternal mortality in ES.
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Affiliation(s)
- W Chen
- Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Changsha City, China
| | - J Chen
- Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Changsha City, China
| | - M Peng
- Department of Paediatrics, Xiangya Hospital, Central South University, Changsha, China
| | - J Luo
- Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Changsha City, China
| | - Y Chen
- Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Changsha City, China
| | - H Qiu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Changsha City, China
| | - J Li
- Department of Cardiovascular Medicine, The Second Xiangya Hospital of Central South University, Changsha City, China
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Peng M, Liu Y, Jia X, Wu Y, Zou X, Ke M, Cai K, Zhang L, Lu D, Xu A. Dietary Total Antioxidant Capacity and Cognitive Function in Older Adults in the United States: The NHANES 2011-2014. J Nutr Health Aging 2023; 27:479-486. [PMID: 37357333 DOI: 10.1007/s12603-023-1934-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 05/13/2023] [Indexed: 06/27/2023]
Abstract
OBJECTIVES Oxidative stress level takes part in the development of cognitive decline. However, the association between total antioxidant capacity (TAC) from diet and cognitive function is controversial. The aim of this study was to investigate the relationship between TAC and the cognitive function of older adults in the U.S. DESIGN A cross-sectional study. SETTING National Health and Nutrition Examination Surveys database. PARTICIPANTS 2712 older adults aged over 60 years. MEASUREMENTS TAC was calculated from 8 antioxidative vitamins based on the reference values for vitamin C equivalent antioxidant capacity obtained from individuals' 24 h dietary recall. Four memory-related assessments were employed [Immediate Recall test (IRT), Delayed Recall test (DRT), Animal Fluency test (AFT), and Digit Symbol Substitution test (DSST)]. RESULTS Among the 2712 participants, the median age was 68 years, and 50.4% were women. Participants in the group with higher TAC levels had relatively higher IRT, AFT and DSST scores (P=0.025, P=0.008, P<0.001, respectively). In adjusted weighted linear regression, log-transformed TAC was positively associated with AFT (β=1.10, 95%CI: 0.51, 1.70) and DSST (β=2.81, 95%CI: 1.16, 4.45). Compared with the first quartile, the participants in the second (Q2 vs. Q1, OR=0.66, 95%CI: 0.43,1.02) and fourth quartile (Q4 vs. Q1, OR=0.47, 95%CI:0.28, 0.78) of log-transformed TAC showed a decreased risk of impaired cognitive function (ICF) after adjusting for confounders. The dose-response analysis indicated a gradual descent in the risk of ICF as TAC increases. Diabetes mellitus (DM) mediated part of the effect of TAC on ICF. The relationship between TAC and ICF was more pronounced in subjects with DM (Q4 vs Q1, OR=0.36, 95%CI:0.17, 0.74). CONCLUSION Our findings support that higher dietary antioxidant potential was related to a decreased risk of cognitive dysfunction, particularly in the subjects with DM who may have oxidative injury. DM was one of the factors mediating the effect of TAC on ICF.
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Affiliation(s)
- M Peng
- Anding Xu, Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, No.613, Huangpu Road West, Guangzhou, 510630, Guangdong Province, China, ; Dan Lu, Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, No.613, Huangpu Road West, Guangzhou, 510630, Guangdong Province, China,
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12
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Yu C, Zhang FJ, Zhang LL, Xian DX, Li Y, Li JJ, Tang SX, Li XJ, Liu Y, Peng M, Zhang L, Wang S. An approach combining bioinformatics and machine learning to identify eight autophagy-related biomarkers and construct molecular mechanisms underlying COVID-19 and major depressive disorders. Eur Rev Med Pharmacol Sci 2022; 26:8129-8143. [PMID: 36394763 DOI: 10.26355/eurrev_202211_30167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE A lack of objective biomarkers is preventing the screening and diagnosis of COVID-19 combined with major depression disorder (COVID-19-MDD). The purpose of this study was to identify diagnostic biomarkers and gene regulatory mechanisms associated with autophagy; a crucial process significantly involved in the pathogenesis of COVID-19-MDD. MATERIALS AND METHODS In this study, differentially expressed genes (DEGs) were screened using GSE98793 from the GEO2R analysis (GEO) database, and intersected with the COVID-19-related gene (CRGs) and autophagy-related genes (ARGs) to obtain common genes involved in. Then, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses of these common genes were performed. Subsequently, the transcription factor (TF)-gene regulatory network and comorbidity network were constructed. In addition, 10 drug candidates were screened using the DSigDB database. To identify diagnostic markers, we used LASSO regression. RESULTS In total, 13 common genes were screened, which were primarily enriched in lysosomes, endoplasmic reticulum membranes, and other endomembrane systems also associated with autophagy. Additionally, these genes were involved in neurological cell signaling and have a functional role in pathways related to vascular endothelial growth factor, tyrosine kinase, autophagy, inflammation, immunity, and carcinogenesis. Tumors and psychiatric disorders were the most highly linked diseases to COVID-19. Finally, ten drug candidates and eight diagnostic markers (STX17, NRG1, RRAGD, XPO1, HERC1, HSP90AB1, EPHB2, and S1PR3) were screened. CONCLUSIONS This is the first study to screen eight diagnostic markers and construct a gene regulatory network for COVID-19-MDD from the perspective of autophagy. The findings of our study provide novel insights into the diagnosis and treatment of COVID-19-MDD.
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Affiliation(s)
- C Yu
- Department of Traditional Chinese Medicine Classics, Shandong University of Traditional Chinese Medicine Affiliated Hospital, Jinan, Shandong, China.
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13
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Ma C, Xu D, Hui Q, Gao X, Peng M. Quantitative Intracerebral Iodine Extravasation in Risk Stratification for Intracranial Hemorrhage in Patients with Acute Ischemic Stroke. AJNR Am J Neuroradiol 2022; 43:1589-1596. [PMID: 36202552 PMCID: PMC9731239 DOI: 10.3174/ajnr.a7671] [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: 06/03/2022] [Accepted: 09/07/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND AND PURPOSE Intracerebral hemorrhage poses a severe threat to the outcomes in patients with postthrombectomy acute stroke. We aimed to compare the absolute intracerebral iodine concentration and normalized iodine concentration ratio in predicting intracerebral hemorrhage in patients postthrombectomy. MATERIALS AND METHODS Patients with acute anterior circulation large-vessel occlusion who underwent mechanical thrombectomy and had successful recanalization were retrospectively included in the study. Dual-energy CT was performed within 1 hour after mechanical thrombectomy. Postprocessing was performed to measure the absolute intracerebral iodine concentration and the normalized iodine concentration ratio. The correlation between the absolute intracerebral iodine concentration and the normalized iodine concentration ratio was analyzed using the Spearman rank correlation coefficient. We compared the area under the receiver operating characteristic curve of the absolute intracerebral iodine concentration and the normalized iodine concentration ratio using the DeLong test. RESULTS We included 138 patients with successful recanalization. Of 43 patients who did not have parenchymal contrast staining on postthrombectomy dual-energy CT, 5 (11.6%) developed intracerebral hemorrhage. Among patients (95/138, 68.8%) with parenchymal contrast staining, 37 (38.9%, 37/95) developed intracerebral hemorrhage. The absolute intracerebral iodine concentration was significantly correlated with the normalized iodine concentration ratio (ρ = 0.807; 95% CI, 0.718-0.867; P < .001). The cutoffs of the normalized iodine concentration ratio and absolute intracerebral iodine concentration for identifying patients with intracerebral hemorrhage development were 222.8%, with a sensitivity of 67.6% and specificity of 76.4%, and 2.7 mg I/mL, with a sensitivity of 75.7% and specificity of 65.5%, respectively. No significant difference was found between the areas under the receiver operating characteristic curve for the absolute intracerebral iodine concentration and the normalized iodine concentration ratio (0.753 versus 0.738) (P = .694). CONCLUSIONS The hemorrhagic transformation predictive power of the normalized iodine concentration ratio is similar to that of the absolute intracerebral iodine concentration in patients with successful recanalization.
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Affiliation(s)
- C Ma
- From the Departments of Radiology (C.M., Q.H., X.G.)
| | | | - Q Hui
- From the Departments of Radiology (C.M., Q.H., X.G.)
| | - X Gao
- From the Departments of Radiology (C.M., Q.H., X.G.)
| | - M Peng
- Neurology (M.P.), Deyang People's Hospital, Deyang, Sichuan, China
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Shen J, Zhang M, Zhang K, Qin Y, Liu M, Liang S, Chen D, Peng M. Effect of Angelica polysaccharide on mouse myeloid-derived suppressor cells. Front Immunol 2022; 13:989230. [PMID: 36159871 PMCID: PMC9500156 DOI: 10.3389/fimmu.2022.989230] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
Angelica polysaccharide (APS) is a polysaccharide extracted from Angelica sinensis and it is one of the main active components of Angelica sinensis. Many studies have demonstrated that APS can promote the activation and function of a variety of immune cells and is recognized as an immune enhancer, but the regulatory effect of APS on myeloid-derived suppressor cells (MDSC) is still unclear. In this study, we investigated the effects of APS on MDSC proliferation, differentiation and function through in vivo and in vitro experiments. In vitro, our results showed that APS promoted the proliferation, differentiation and immunosuppressive function of MDSC through STAT1 and STAT3 signaling pathways, and positively correlated with the expression level of Mannose receptor (MR, also known as CD206) and in a concentration-dependent manner on APS. In vivo, APS up-regulated T cells, γδT cells, CD8+T cells, natural killer cells, monocytes/macrophages, and granulocytes in the peripheral blood and spleen of mice to varying degrees and was accompanied by the same degree of increase in the proportion of MDSC. That reminds to the clinician that when applying APS as treatment they should pay attention to its possible side effects of increasing the quantity and function of MDSC, in order to increase its efficacy.
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Affiliation(s)
- Jie Shen
- Weifang Medical University, Weifang, China
| | | | - Ke Zhang
- Weifang Medical University, Weifang, China
| | - Yahan Qin
- Weifang Medical University, Weifang, China
| | - Meifang Liu
- Key Lab for Immunology in Universities of Shandong Province, Department of Immunology, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Shujuan Liang
- Key Lab for Immunology in Universities of Shandong Province, Department of Immunology, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
- *Correspondence: Meiyu Peng, ; Shujuan Liang, ; Daquan Chen,
| | - Daquan Chen
- Collaborative Innovation Center of Advanced Drug Delivery System and BiotechDrugs, School of Pharmacy, Yantai University, Yantai, China
- *Correspondence: Meiyu Peng, ; Shujuan Liang, ; Daquan Chen,
| | - Meiyu Peng
- Weifang Medical University, Weifang, China
- Key Lab for Immunology in Universities of Shandong Province, Department of Immunology, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
- *Correspondence: Meiyu Peng, ; Shujuan Liang, ; Daquan Chen,
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He J, Wang B, Tao J, Liu Q, Peng M, Qiu X, Yang Y, Ye Z, Liu D, W. li, Chen Z, Zeng Q, Fan J, Liang W. 905MO Synergistic combination of clinical, imaging and DNA methylation biomarkers improves the classification of pulmonary nodules. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1031] [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: 11/25/2022] Open
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Wu KY, Chen SY, Sun GA, Peng SM, Peng M, Yan H. Experimental Limits on Exotic Spin and Velocity Dependent Interactions Using Rotationally Modulated Source Masses and an Atomic-Magnetometer Array. Phys Rev Lett 2022; 129:051802. [PMID: 35960570 DOI: 10.1103/physrevlett.129.051802] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Various theories beyond the standard model predict new interactions mediated by new light particles with very weak couplings to ordinary matter. Interactions between polarized electrons and unpolarized nucleons proportional to g_{V}^{N}g_{A}^{e}σ[over →]·v[over →] and g_{A}^{N}g_{A}^{e}σ[over →]·v[over →]×r[over →] are two such examples, where σ[over →] is the spin of the electrons, r[over →] and v[over →] are position and relative velocity between the polarized electrons and nucleons, g_{V}^{N}/g_{A}^{N} is the vector or axial-vector coupling constant of the nucleon, and g_{A}^{e} is the axial-vector coupling constant of the electron. Such interactions involving a vector or axial-vector coupling g_{V}^{N}/g_{A}^{N} at one vertex and an axial-vector coupling g_{A}^{e} at the polarized electron vertex can be induced by the exchange of spin-1 bosons. We report new experimental upper limits on such exotic spin-velocity-dependent interactions of the electron with nucleons from dedicated experiments based on a recently proposed scheme. We rotationally modulated two ∼6 Kg source masses at a frequency of 20 Hz. We used four identical atomic magnetometers in an array form to increase the statistics and cancel the common-mode noise. We applied a data processing method based on high precision numerical integration for the four harmonic frequencies of the signal. We reverse the rotation direction of the source masses to flip the signal due to the new interactions; thus, we can apply the [+1,-3,+3,-1] weighting method to remove possible slow drifting. Our constraint on the product of vector and axial-vector couplings is |g_{V}^{N}g_{A}^{e}|<2.1×10^{-34} and on the product of axial-vector and axial-vector couplings is |g_{A}^{N}g_{A}^{e}|<2.4×10^{-22} for an interaction range of 10 m. The new constraints on vector-axial-vector interaction improved by as much as more than 4 orders of magnitude and on axial-axial interaction by as much as 2 orders of magnitude in the corresponding interaction range, respectively.
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Affiliation(s)
- K Y Wu
- Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan 621900, China
| | - S Y Chen
- Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan 621900, China
| | - G A Sun
- Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan 621900, China
| | - S M Peng
- Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan 621900, China
| | - M Peng
- Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan 621900, China
| | - H Yan
- Key Laboratory of Neutron Physics, Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan 621900, China and Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan 621900, China
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Zhang T, Xue PJ, Li YY, Peng M, Sun XF, Shi JH. [Clinical and prognostic analysis of acute pulmonary thromboembolism in the elderly]. Zhonghua Jie He He Hu Xi Za Zhi 2022; 45:539-545. [PMID: 35658377 DOI: 10.3760/cma.j.cn112147-20211126-00839] [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: 06/15/2023]
Abstract
Objective: To analyse the clinical characteristics and to explore the prognostic factors of acute pulmonary thromboembolism in the elderly. Methods: The medical records of inpatients with acute pulmonary thromboembolism discharged from Peking Union Medical College Hospital from January 1, 2012, to February 1, 2019 were retrospectively reviewed. The eligible patients were divided into elderly group (≥ 60 years old) and non-elderly group (<60 years old). The clinical symptoms, complications, laboratory results, pulmonary embolism severity index (PESI) and mortality were compared between the two groups. Mortality was further compared among elderly patients of different age groups. Cox regression analysis was used to analyze the risk factors of 7-day and 30-day death in elderly patients with pulmonary embolism. Results: A total of 503 patients with acute pulmonary embolism were included, including 279 cases in the elderly group and 224 cases in the non-elderly group. The incidence of cardiac arrest was higher in the elderly group compared with non-elderly group, while the incidence of chest pain and hemoptysis was less common in the elderly group. The proportions of comorbidities, including diabetes, hypertension, and coronary heart disease were higher in the elderly group while the proportion of autoimmune diseases was higher in the non-elderly group. In terms of prognosis, the PESI score and 7-day and 30-day mortality in the elderly group were higher than those in the non-elderly group. The mortality of elderly patients increased with age. Cox univariate regression analysis showed that infection, hypoalbuminemia, hypocalcemia, elevated cardiac troponin(cTnI), elevated N-terminal prohormone of brain natriuretic pepride(NT-proBNP) and PESI grade were associated with 30-day death. Multivariate Cox regression analysis showed that PESI grade and decreased serum calcium concentration were independent risk factors for 7-day death of pulmonary embolism in elderly patients. PESI grade, decreased serum calcium concentration and infection were independent risk factors for 30-day death. Conclusions: The mortality of elderly patients with pulmonary embolism was higher than that of non-elderly patients, and the mortality increased gradually with age. PESI grade, decreased serum calcium concentration and infection were independent risk factors for 30-day death of pulmonary embolism in elderly patients.
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Affiliation(s)
- T Zhang
- Department of pulmonary and critical care medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - P J Xue
- Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Y Li
- Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M Peng
- Department of pulmonary and critical care medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X F Sun
- Department of pulmonary and critical care medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J H Shi
- Department of pulmonary and critical care medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
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Abstract
Regulation of pro-inflammatory cytokines and immune cells by exosomes derived from SLE. Abnormal expression of exosome composition in SLE. Diagnostic role of miRNAs in Exosomes for SLE. Feasibility of exosomes in the treatment of SLE.
Systemic lupus erythematosus (SLE) is a global chronic autoimmune disease that invades most organs of the body, with kidney injury being the most prominent feature. Exosomes are extracellular vesicles that carry a variety of proteins, lipids and genetic material, participate in the exchange of local and intersystem information, and play an important immunoregulatory role in a variety of autoimmune diseases. At the same time, the use of exosomes as disease biomarkers and drug delivery carriers also shows great application prospects. This article reviews current progress in the application of exosomes in the pathogenesis, diagnosis and treatment of SLE.
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Key Words
- CfDNA, Circulating free DNA
- Diagnostic role
- Exosomes
- HMGB1, High mobility group box 1
- Immunomodulation
- LN, Lupus nephritis
- MSC, Mesenchymal stem cells (MSC)
- MiRNAs, Microribonucleic acids
- Microribonucleic acid
- PAMPs, Pathogen-associated molecular patterns
- PDCs, Plasmacytoid dendritic cells
- SLE, Systemic lupus erythematosus
- Systemic lupus erythematosus
- TLR, Recombinant Toll Like Receptor
- Therapeutic potential
- Treg, Regulatory T cells
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Affiliation(s)
- Jie Shen
- Weifang Medical University, Weifang 261053, China
| | - Mengyu Zhang
- Weifang Medical University, Weifang 261053, China
| | - Meiyu Peng
- Weifang Medical University, Weifang 261053, China.,Department of Immunology, School of Basic Medical Sciences, Weifang Medical University, Weifang 261053, China
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Zhang T, Luo JM, Peng M, Gao L, Tian XL, Xu WB, Liu HR, Shi JH, Feng R. [Waxing and waning pulmonary nodules and cavities]. Zhonghua Jie He He Hu Xi Za Zhi 2022; 45:475-479. [PMID: 35527463 DOI: 10.3760/cma.j.cn112147-20211103-00768] [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
We reported a case of vascular Ehlers-Danlos syndrome presenting with recurrent pulmonary hemorrhage. A 22-year-old man was admitted for intermittent hemoptysis and chest pain during the past 18 months. Computed tomography of chest showed bilateral nodules and cavities with halo sign. Inflammatory markers, including erythrocyte sedimentation rate, C reactive protein and interleukin 6, were within normal range. The microbiological and pathological examination of bronchoalveolar lavage fluid and CT-guided percutaneous lung biopsy failed to draw a diagnosis. The pulmonary lesions waxed and waned despite empirical antibacterial, antifungal, antimycobacterial, and anti-parasite treatment. Video-assisted thoracoscopic lung biopsy showed pulmonary hemorrhage, hematoma, ossification, and fibrous nodules, suggesting vascular Ehlers-Danlos syndrome. The molecular testing revealed a heterozygous missense variant in the COL3A1 gene which confirmed the diagnosis of vascular Ehlers-Danlos syndrome. The patient had no skin hyperextensibility or joint hypermobility. During 3-year follow-up, there were no evidence of other vascular or organ involvement except he had intermittent minor hemoptysis. Through this clinical pathological discussion, we aimed to remind pulmonologist to consider the possible diagnosis of vascular Ehlers-Danlos syndrome in young patients with recurrent hemoptysis and waxing and waning pulmonary nodules, cavities, or cysts on CT scan who has neither obvious systematic inflammation nor effective reaction on empirical antimicrobial therapy. Molecular testing should be carried out as soon as possible in a suspected patient to avoid unnecessary invasive examinations.
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Affiliation(s)
- T Zhang
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J M Luo
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M Peng
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L Gao
- Department of Radiology, Peking University First Hospital, Beijing 100034, China
| | - X L Tian
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - W B Xu
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H R Liu
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J H Shi
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Ruie Feng
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Li YY, Zhang T, Gao L, Xu WB, Tian XL, Zhu YJ, Liu HR, Peng M, Shi JH, Feng R. [Subcutaneous nodules, mediastinal and hilar lymphadenopathy]. Zhonghua Jie He He Hu Xi Za Zhi 2022; 45:387-391. [PMID: 35381637 DOI: 10.3760/cma.j.cn112147-20210929-00688] [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
A 52-year old man was admitted to our hospital because of dyspnea on exertion for 2 months and subcutaneous nodules for 1 month. Chest enhanced CT showed bilateral hilar and mediastinal lymphadenopathy. Bronchial alveolar lavage fluid revealed a CD4+/CD8+ T cell subsets ratio of 4.3 and culture for acid-fast bacillus (AFB) was negative. The pathology of skin nodules and transbronchial needle aspiration biopsy guided by endoscopic ultrasound (EBUS-TBNA) revealed non-caseating necrotizing epithelioid granulomas with negative acid-fast bacilli staining and periodic acid-Schiff staining, which was compatible with sarcoidosis. The patient was diagnosed as sarcoidosis and glucocorticoid was administrated. The subcutaneous nodules were improved. However, the lymph nodes were enlarged instead of shrinking after 6-month therapy. The failure to respond to glucocorticoids raised the possibility of sarcoidosis complicated with tuberculosis infection. The patient received anti-tuberculosis therapy. Lymphadenopathy responded within 4 months, and there was complete regression after 18-month treatment. The patient was followed up for 5 years and repeated chest CT scan showed that the sizes of bilateral hilar and mediastinal lymph nodes were normal.
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Affiliation(s)
- Y Y Li
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - T Zhang
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - L Gao
- Department of Radiology, Peking University First Hospital, Beijing 100034, China
| | - W B Xu
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - X L Tian
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y J Zhu
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - H R Liu
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - M Peng
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - J H Shi
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Ruie Feng
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
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Peng M, Xu WB, Xu ZJ, Cai BQ, Zhu YJ, Liu HR, Zhang WH, Song L, Wang MZ, Li SQ, Shi JH, Feng R. [Diagnostic value of surgical lung biopsies for diffuse parenchymal lung disease: the change of disease spectrum in the past 28 years in a single institution in China]. Zhonghua Jie He He Hu Xi Za Zhi 2022; 45:255-260. [PMID: 35279988 DOI: 10.3760/cma.j.cn112147-20211012-00712] [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 investigate the changes of disease spectrum in diffuse parenchymal lung disease (DPLD) diagnosed by surgical lung biopsy, and to explore the diagnostic value of surgical lung biopsy in DPLD. Methods: Four hundred and fifty-five consecutive DPLD patients, who underwent surgical lung biopsy in Peking Union Medical College Hospital during the past 28 years, were analyzed retrospectively. Results: There were 211 males and 244 females. The average age at biopsy was (45±14) years. Four hundred and eleven cases (90.3%) were diagnosed by pathologic findings. Four hundred and forty-one cases (96.9%) were diagnosed by clinical-radiologic-pathologic multidisciplinary discussion. The 30-day mortality and 90-day mortality were 2.4% and 3.3% respectively. The disease spectrum included interstitial pneumonia in 209 cases (45.9%) (nonspecific interstitial pneumonia in 105 cases, usual interstitial pneumonia in 33 cases), other miscellaneous DPLD in 166 cases (36.5%) (including hypersensitivity pneumonitis in 49 cases), tumor in 39 cases (8.6%), and infectious diseases in 27 cases (5.9%). In the three consecutive periods (1993-2002, 2003-2012 and 2013-2020), the number of biopsies was 76 (16.7%), 297 (65.3%) and 82 (18%) respectively. The disease spectrum changes over time: in the above three periods, the percentage of interstitial pneumonia in DPLD was 68.4%, 45.1% and 28%, other miscellaneous DPLDs were 22.4%, 39.4% and 39.0%, the tumors were 2.6%, 7.4% and 18.3%, the infectious diseases were 5.3%, 5.1% and 9.8%. Conclusions: This study presented the changes of disease spectrum in DPLD diagnosed by surgical lung biopsy through single center real-world data, reflecting the progress of clinicians' understanding of DPLD and interstitial pneumonia. Surgical lung biopsy is still valuable for some difficult and complicated DPLD cases.
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Affiliation(s)
- M Peng
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - W B Xu
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Z J Xu
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - B Q Cai
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y J Zhu
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - H R Liu
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - W H Zhang
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - L Song
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - M Z Wang
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - S Q Li
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - J H Shi
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Ruie Feng
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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Sun X, Zhang T, Peng M, Wang Y, Feng RE, Shi J. [Bloody sputum with cavitary lesions on chest computed tomography scans: a case report]. Zhonghua Jie He He Hu Xi Za Zhi 2022; 45:191-194. [PMID: 35135089 DOI: 10.3760/cma.j.cn112147-20210429-00298] [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
This article reported a case of a middle-aged man with a 1-year history of intermittent cough and production of bloody sputum. Serum autoantibodies of the patient were negative. Early in the course of the disease, chest computed tomography (CT) scans showed a nodule in the right middle lung lobe with cavity formation. Surgical resection of the lesion was done with a postoperative pathological diagnosis of inflammatory pseudotumor. No treatment was given and his symptoms recurred with new patches in the right upper lobe. Pathology consultation from another hospital found vasculitis under the microscope and a diagnosis of granulomatosis with polyangiitis was made. His symptoms still worsened after glucocorticoid therapy. Final pathological consultation from Peking Union Medical College Hospital reached a diagnosis of pulmonary actinomycosis. Pulmonary lesions were absorbed after anti-infection treatment. The diagnosis and treatment of this patient provided more data for understanding of the relationship between infection and vasculitis among clinicians and pathologists.
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Affiliation(s)
- X Sun
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - T Zhang
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - M Peng
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y Wang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - R E Feng
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Juhong Shi
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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23
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Cui X, Weng Y, Feng J, Jin Y, Xu Z, Wang P, Ruan P, Luo J, Luo P, Peng M. 64P Prognostic value of tertiary lymphoid structures in cancer: A systematic review and meta-analysis. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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24
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Zhang T, Peng M, Shi JH. [Pathogenesis of antineutrophil cytoplasmic antibody in antineutrophil cytoplasmic antibody-associated vasculitis with respiratory system involvement]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:670-673. [PMID: 34256455 DOI: 10.3760/cma.j.cn112147-20200817-00904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
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25
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Zhou C, Jiang L, Dong X, Gu K, Pan Y, Shi Q, Zhang G, Wang H, Zhang X, Yang N, Li Y, Xiong J, Yi T, Peng M, Song Y, Fan Y, Cui J, Chen G, Tan W, Zang A, Guo Q, Zhao G, Wang Z, He J, Yao W, Wu X, Chen K, Hu X, Hu C, Yue L, Jiang D, Wang G, Liu J, Yu G. MA01.04 A Randomized Study Comparing Cisplatin/Paclitaxel Liposome vs Cisplatin/Gemcitabine in Chemonaive, Advanced Squamous NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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26
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Abstract
Abstract
Small modular reactors (SMRs) are suitable for deployment in isolated underdeveloped areas to support highly localized microgrids. In order to achieve almost autonomous operation for reducing the cost of operating personnel, an autonomous control system with decision-making capability is needed. In this paper, a decision-making method based on Bayesian optimization algorithm (BOA) is proposed to explore the optimal operation scheme under fault conditions. BOA is used to adjust exploration strategy of operation scheme according to observations (operation schemes previously explored). To measure the feasibility of each operation scheme, an objective function that considers security and economy is established. BOA attempts to obtain the optimal operation scheme with maximum of the objective function in as few iterations as possible. To verify the proposed method, all main pump powered off fault is simulated by RELAP5 code. The optimal operation scheme of the fault is applied, the transient result shows that all key parameters are within safe limits and SMR is maintained at relatively high power, which means that BOA has the decision-making capability to get an optimal operation scheme on fault conditions.
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Lin JJ, Zhang T, Peng M, Shi JH. [Clinical features of pulmonary artery involvement in Takayasu's arteritis and recent advances]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:54-59. [PMID: 33412625 DOI: 10.3760/cma.j.cn112147-20200316-00349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
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28
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Zhang TT, Yu ZK, Xiu CF, Bai YT, Peng M, Guo ZH. Changes of plasma Von Willebrand factor and Von Willebrand factor-cleaving protease levels in pregnancy-induced hypertension. J BIOL REG HOMEOS AG 2020; 34:1147-1152. [PMID: 32608221 DOI: 10.23812/19-514-l-51] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- T T Zhang
- Department of Obstetrics, The First Hospital of Jilin University, Changchun City, China
| | - Z K Yu
- Department of Neonatology, The First Hospital of Jilin University, Changchun City, China
| | - C F Xiu
- Department of Gynaecology II, The First Hospital of Jilin University, Changchun City, China
| | - Y T Bai
- Department of Gynaecology I, The First Hospital of Jilin University, Changchun City, China
| | - M Peng
- Department of Obstetrics, The First Hospital of Jilin University, Changchun City, China
| | - Z H Guo
- Department of Obstetrics, The First Hospital of Jilin University, Changchun City, China
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29
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Chen YL, Wang H, Zhou YN, Lu ZH, Peng M, Sun F, Huang YH. [Epidemiological characteristics of COVID-19 in Wuchang district of Wuhan]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:1616-1622. [PMID: 33297617 DOI: 10.3760/cma.j.cn112338-20200412-00565] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyzes epidemiological characteristics of COVID-19 and provide evidence for adjustment for COVID-19 prevention and control strategies. Methods: The data of COVID-19 cases in Wuchang district reported as of 19 March, 2020 were obtained from National Notifiable Disease Report System of Chinese Disease Prevention and Control Information System. The software's of Excel 2010, SPSSS 22.0, Arc GIS10.2 and Joinpoint regression program 4.8.0.0 were used for statistical analysis. Results: A total of 7547 COVID-19 cases had been reported as of 19 March, 2020 in Wuchang district, including 5 448 confirmed cases (72.19%), 2009 clinical diagnosed cases (26.62%) and 90 asymptomatic cases case (1.19%). The age of the cases was (56.65±16.25) years and age ranged from 2 days to 105 years among confirmed cases, 2634 were males (48.35%) and 2814 were females (51.65%), 2 492 were retirees (45.74%). A total of 545 health workers were infected with SARS-CoV-2 (7.22% of all cases) including 365 confirmed cases and 5 cases have died. A total of 430 cases of death were reported with case fatality rate of 7.89% (430/5 448), case fatality rate of males (10.9%, 266/2 634) was higher than that of females (5.82%, 164/2 814). The first phase of epidemic peak was from January 24 to January 26, the second phase of epidemic peak was from February 1 to February 5 and there was no one of new confirmed case in one day for the first time on March 18. The first four Streets with the highest incidence rates of confirmed cases were Huanghelou Street (1 043.77/100 000), Ziyang Street (627.97/100 000), Yangyuan Street (503.67/100 000) and Shuiguohu Street (486.02/100 000). Compared with females, aged ≤50 years and mild cases of clinical classification respectively, males (RR=0.690, 95%CI: 0.322-1.478), aged >50 years (RR=11.745, 95%CI: 6.878-20.058), severe cases (RR=2.317, 95%CI: 1.789-3.000) and critical cases of clinical classification (RR=10.794, 95%CI: 7.997-14.569), and gender time-dependent covariate (RR=1.392, 95%CI: 1.053-1.840) were major influencing factors of prognosis of COVID-19 confirmed cases. Conclusions: The gender, ages and occupation of distribution were wide among COVID-19 cases in Wuchang district. Males, aged >50 years, severe cases and critical cases of clinical classification were influencing factors of prognosis of COVID-19 confirmed cases. The standardized management of discharged cases, asymptomatic infected cases and close contact persons were main measures to reduce incidence rates of COVID-19 cases.
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Affiliation(s)
- Y L Chen
- Jiyuqiao Street Community Health Service Center of Wuchang District of Wuhan, Wuhan 430071, China
| | - H Wang
- Wuhan Wuchang District Health Bureau, Wuhan 430071, China
| | - Y N Zhou
- Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan 430071, China
| | - Z H Lu
- Renmin Hospital of Wuhan University, Wuhan 430071, China
| | - M Peng
- Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan 430071, China
| | - F Sun
- Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan 430071, China
| | - Y H Huang
- Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan 430071, China
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Zhang X, Peng M, Feng C, Wang H, Gong P, Jiang T, Xie Y, Yang D, Yuan K, Chen J, Li Y, Liu D, Liu X, Xu G. Nomogram predicting early neurological improvement in ischaemic stroke patients treated with endovascular thrombectomy. Eur J Neurol 2020; 28:152-160. [PMID: 32897575 DOI: 10.1111/ene.14510] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 06/30/2020] [Accepted: 08/31/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND AND PURPOSE Early neurological improvement (ENI) after endovascular thrombectomy (EVT) has been associated with favorable outcomes. This study aimed to identify the optimal definition of ENI and develop a nomogram for predicting ENI after EVT in acute ischaemic stroke. METHODS Patients with EVT were enrolled from a multicenter registry as the training cohort. The receiver operating characteristic curve was used to estimate the optimal threshold for ENI at 24 h of EVT. Logistic regression analysis was utilized to generate the best-fit nomogram for predicting ENI. The discrimination of the nomogram was assessed using the area under the receiver operating characteristic curve (AUC). An additional 447 patients from two stroke centers were prospectively recruited as the test cohort for validating the nomogram. RESULTS A total of 612 patients with EVT were included in the training cohort. The optimal threshold for predicting 3-month favorable outcome (modified Rankin Scale 0-2) was an improvement of the National Institutes of Health Stroke Scale (NIHSS) score by ≥6 points (AUC 0.875; sensitivity 79.5%; specificity 90.7%). Age, blood glucose, recanalization, symptomatic intracranial hemorrhage (sICH) and baseline Alberta Stroke Program Early Computed Tomography Score (ASPECTS) were independently associated with ENI, and were incorporated in the nomogram. The AUC of the nomogram was 0.795 in the training cohort and 0.752 in the test cohort. CONCLUSIONS A reduction of NIHSS score ≥6 appeared to be the optimal definition of ENI. The nomogram composed of age, blood glucose, recanalization, sICH and baseline ASPECTS may predict the probability of ENI in ischaemic stroke patients treated with EVT.
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Affiliation(s)
- X Zhang
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - M Peng
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - C Feng
- The Hospital of PLA Hong Kong Garrison, Hong Kong, China
| | - H Wang
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China.,Department of Neurology, The 89th Hospital of The People's Liberation Army, Weifang, China
| | - P Gong
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - T Jiang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Y Xie
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - D Yang
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - K Yuan
- Department of Neurology, Jinling Hospital, Nanjing Medical University, Nanjing, China
| | - J Chen
- Department of Neurology, Jinling Hospital, Nanjing Medical University, Nanjing, China
| | - Y Li
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - D Liu
- Department of Neurology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - X Liu
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - G Xu
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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Pang X, Zhang L, Liu N, Liu B, Chen Z, Li H, Chen M, Peng M, Ren H, Hu P. Combination of pegylated interferon-alpha and nucleos(t)ide analogue treatment enhances the activity of natural killer cells in nucleos(t)ide analogue experienced chronic hepatitis B patients. Clin Exp Immunol 2020; 202:80-92. [PMID: 32638357 DOI: 10.1111/cei.13486] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/07/2020] [Accepted: 06/11/2020] [Indexed: 02/06/2023] Open
Abstract
A combination of pegylated interferon-alpha (peg-IFN-α) and nucleos(t)ides analogue (NA) therapy can effectively reduce hepatitis B surface antigen (HBsAg), especially in NA-experienced chronic hepatitis B (CHB) patients. However, the immune mechanism of this therapy is unclear. Forty NA-experienced CHB patients were enrolled into this study. The frequencies of peripheral blood natural killer (NK) cells, dendritic cells (DCs), CD4+ T cells, CD8+ T cells, T helper (Th) cells, regulatory T cells (Treg ), B cells and follicular T helper (Tfh) cells were evaluated by flow cytometry. Seven of the 40 patients converted to peg-IFN-α combined with NA treatment, while the other 33 continued to NA therapy. The decrease in HBsAg was more pronounced in the combination treatment group, and only patients receiving combination treatment achieved HBsAg loss. The frequency and absolute number of CD56bright NK cells in the combination treatment group increased significantly compared with the NA treatment group, whereas the CD56dim NK cells were decreased. In the NA treatment group, the proportions of CD4+ TN , CD8+ TN , CD19+ B and cytotoxic T lymphocyte antigen-4 (CTLA-4)+ CD4+ T cells were increased, while the proportions of CD4+ TEM , CD8+ TEM , CD25+ CD4+ Treg , CD25high CD4+ Treg , CD127low CD25+ Treg , programmed cell death 1 (PD-1)+ CD4+ T, PD-1+ CD8+ T, CTLA-4+ CD8+ T, CCR4+ CD25+ Treg and CCR4+ CD25high Treg cells were decreased after therapy. For NA-experienced CHB patients who achieved low HBsAg levels, combination treatment is more likely to result in HBsAg decline and HBsAg clearance by increasing the activity of CD56bright NK cells.
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Affiliation(s)
- X Pang
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - L Zhang
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - N Liu
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - B Liu
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Z Chen
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - H Li
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - M Chen
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - M Peng
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - H Ren
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - P Hu
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Chen SS, Peng M, Zhou GZ, Pu YC, Yi MC, Zhu Y, Jiang B. Long non-coding RNA HOTAIR regulates the development of non-small cell lung cancer through miR-217/DACH1 signaling pathway. Eur Rev Med Pharmacol Sci 2020; 23:670-678. [PMID: 30720199 DOI: 10.26355/eurrev_201901_16905] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Long non-coding RNA HOX transcript antisense RNA (HOTAIR) is reported to make chromatin state, cell growth and cancer metastasis. However, the role of HOTAIR in non-small cell lung cancer (NSCLC) remains unknown. The aim of this study was to explore the regulatory mechanism of HOTAIR in NSCLC in relation to miR-217/Dachshund homolog 1 (DACH1) signaling pathway. MATERIALS AND METHODS The expression levels of HOTAIR and miR-217 were measured by quantitative Polymerase Chain Reaction (qPCR) in NSCLC cell lines and human bronchial epithelial cell line HBE. The direct target of HOTAIR and miR-217 in NSCLC was confirmed by a Luciferase reporter assay. The expression of DACH1 protein was examined by Western blot (WB) assay. Cell migration and invasion were examined with transwell assays, and cell proliferation was measured by Cell Counting Kit-8 (CCK8) assay. RESULTS HOTAIR was up-regulated and miR-217 was down-regulated in NSCLC cell lines. Silencing of HOTAIR significantly repressed cell proliferation and inhibited cell migration and invasion in H1299 and A549 cells by facilitating miR-217 expression. Moreover, bioinformatics analysis and Luciferase reporter assay confirmed that DACH1 was a target of miR-217. Furthermore, the overexpression of miR-217 markedly repressed cell proliferation and inhibited cell migration and invasion in H1299 and A549 cells. DACH1 reverses the effects of miR-217 overexpression in NSCLC cells. CONCLUSIONS HOTAIR was up-regulated in NSCLC cell and regulates the proliferation, migration, invasion through the miR-217/DACH1 signaling pathway. It provides a novel potential treatment strategy for NSCLC.
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Affiliation(s)
- S-S Chen
- Department of Surgery, Chuxiong Medical College, Chuxiong, China.
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Tian XL, Peng M, Wang HP, Cai BQ, Xu WB, Zhu YJ, Li TS, Zhu HD, Song L, Wang MZ, Zhang L, Shi JH. [The differential diagnosis for novel coronavirus pneumonia and similar lung diseases in general hospitals]. Zhonghua Jie He He Hu Xi Za Zhi 2020; 43:401-408. [PMID: 32153167 DOI: 10.3760/cma.j.cn112147-20200221-00136] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Novel coronavirus pneumonia was a novel coronavirus infection that has dominated pulmonary infection since December 2019. The main manifestations were fever, dry cough, shortness of breath, normal or leukopenia in peripheral blood and changes in chest CT and in severe cases, multiple organ failure might occur. The National Health Commission, PRC has revised the consensus on diagnosis and treatment seven times in a short period of time, indicating the growing understanding of the disease. Patients with novel coronavirus pneumonia usually had history of travelling or living in the epidemic area including Wuhan within 14 days before onset, or have been exposed to patients who had fever or respiratory symptoms from the epidemic area, or had clustering diseases. However, novel coronavirus pneumonia was becoming more and more blurred after vanishing epidemic. The diagnosis and differential diagnosis of novel coronavirus pneumonia were challenges not only because of large number of tourists increasing dramatically after the relieving of epidemic, but also patients with other diseases from different areas to search for medical care. In this article, the clinical and chest imaging features of the novel coronavirus pneumonia were reviewed and compared with other infections and non-infectious diffuse pulmonary diseases. We try to find the similarities and differences among them, and to identify clues to the diagnosis of novel coronavirus pneumonia, so as to ensure accurate diagnosis and treatment.
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Affiliation(s)
- X L Tian
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M Peng
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H P Wang
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - B Q Cai
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - W B Xu
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y J Zhu
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- Department Infection Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H D Zhu
- Department of Emergency, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L Song
- Department of Radiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M Z Wang
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L Zhang
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J H Shi
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Peng M, Zhang Q, Liu Y, Guo X, Ju J, Xu L, Gao Y, Chen D, Mu D, Zhang R. Apolipoprotein A-I Mimetic Peptide L-4F Suppresses Granulocytic-Myeloid-Derived Suppressor Cells in Mouse Pancreatic Cancer. Front Pharmacol 2020; 11:576. [PMID: 32425796 PMCID: PMC7204910 DOI: 10.3389/fphar.2020.00576] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 04/15/2020] [Indexed: 01/04/2023] Open
Abstract
L-4F is an apolipoprotein A-I (ApoA-I) mimetic peptide, it was engineered to imitate the anti-inflammatory and anti-oxidative activity of ApoA-I. In this paper, H7 cell was used to construct a mouse model of pancreatic cancer in situ, and the mice were treated with L-4F. Then, the development of pancreatic cancer and myeloid-derived suppressor cells (MDSCs) infiltration were investigated in vivo. After L-4F treatment, the differentiation, proliferation and apoptosis of MDSCs were detected in vitro. Moreover, we test its effects on the immunosuppressive function of MDSCs ex vivo. The results show that L-4F significantly reduced the tumorigenicity of H7 cells. L-4F suppressed granulocytic myeloid-derived suppressor cells (PMN-MDSCs) differentiation and inhibited the accumulation of PMN-MDSCs in the mouse spleen and tumor tissue. L-4F weakened the immunosuppressive function of MDSCs, resulting in decreased production of ROS and H2O2 by MDSCs, and increased T cell proliferation, interferon γ and tumor necrosis factor β secretion, and CD3+CD4+ T and CD3+CD8+ T cell infiltration into the mouse spleen and pancreatic cancer tissue. Furthermore, L-4F significantly down regulated the STAT3 signaling pathway in PMN-MDSCs. These results indicated that L-4F exerts an effective anti-tumor and immunomodulatory effect in pancreatic cancer by inhibiting PMN-MDSCs.
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Affiliation(s)
- Meiyu Peng
- Department of Immunology, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Qi Zhang
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ Injury and ITCWM Repair, Institute of Acute Abdominal Diseases, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
| | - Yanqing Liu
- Department of Breast Surgery, Yantai Yuhuangding Hospital, Yantai, China
| | - Xiangdong Guo
- Laboratory of Immunology and Inflammation, Department of Immunology, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Medical University, Tianjin, China
| | - Jiyu Ju
- Department of Immunology, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Lingzhi Xu
- Department of Immunology, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Yuanyuan Gao
- Department of Pharmaceutics, School of Pharmacy, Weifang Medical University, Weifang, China
| | - Daquan Chen
- School of Pharmacy, Yantai University, Yantai, China
| | - Dongzhen Mu
- Department of Immunology, School of Basic Medical Sciences, Weifang Medical University, Weifang, China
| | - Rongxin Zhang
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
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Gao C, Sun X, Huang J, Peng M, Sun XF, Zhang T, Shi JH. [The clinical features and prognosis of interstitial lung disease patients with positive anti-neutrophil cytoplasmic antibody]. Zhonghua Jie He He Hu Xi Za Zhi 2020; 43:362-368. [PMID: 32294819 DOI: 10.3760/cma.j.cn112147-20191205-00813] [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: 06/11/2023]
Abstract
Objective: To investigate the clinical features and prognosis of interstitial lung disease patients with positive anti-neutrophil cytoplasmic antibody. Methods: The patients with interstitial lung disease who visited Peking Union Medical College Hospital from March 2006 to March 2016 were divided into three groups: interstitial lung disease with ANCA-positive(ANCA-ILD), connective tissue disease associated interstitial lung disease and interstitial pneumonia with autoimmune features (CTD-ILD/IPAF) and idiopathic interstitial pneumonia (IIP). The three groups were analyzed in terms of clinical manifestations, serology, lung function, imaging, survival and recurrence. Results: Two hundred and seventy four patients were enrolled and 38 (14%) were ANCA-positive of whom 16 were male and 22 were female. The age of 38 ANCA-positive patients was (59±10) years and the follow-up time was (52±31) months. Seven among the 38 ANCA-positive patients died and the death rate is 18.42%. The ANCA-positive patients with interstitial lung disease have higher onset age (ANCA-ILD:59±10,CTD-ILD/IPAF:52±10,IIP:53±11,H=19.29, P<0.001), lower hemoglobin (ANCA-ILD: 129±21, CTD-ILD/IPAF: 138±15, IIP: 140±19, H=8.17, P=0.017), higher erythrocyte sedimentation rate (ANCA-ILD:45±35, CTD-ILD/IPAF:26±24,IIP:19±22,H=19.73, P<0.001), lower lung function improvement rate after treatment (ANCA-ILD:31%,CTD-ILD/IPAF:59%,IIP: 39%,χ(2)=11.74,P=0.003), lower absorption rate of CT lesion (ANCA-ILD:61%,CTD-ILD/IPAF:82%,IIP:67%, χ(2)=9.23,P=0.010) and higher death rate(ANCA-ILD:18%,CTD-ILD/IPAF:6%,IIP:12%, χ(2)=7.16,P=0.028). Conclusions: There are significant differences in clinical characteristics between ANCA-positive patients and other types of pulmonary interstitial disease. And both the treatment effect and the prognosis is poor for the ANCA-positive patients.
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Affiliation(s)
- C Gao
- Department of Respiratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X Sun
- Department of Respiratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Huang
- Department of Respiratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M Peng
- Department of Respiratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X F Sun
- Department of Respiratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T Zhang
- Department of Respiratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J H Shi
- Department of Respiratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
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Zhang B, Peng M, Cheng S, Sun L. A decision-making method based on Bayesian optimization algorithm for small modular reactor. KERNTECHNIK 2020. [DOI: 10.3139/124.190105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Small modular reactors (SMRs) are suitable for deployment in isolated underdeveloped areas to support highly localized microgrids. In order to achieve almost autonomous operation for reducing the cost of operating personnel, an autonomous control system with decision-making capability is needed. In this paper, a decision-making method based on Bayesian optimization algorithm (BOA) is proposed to explore the optimal operation scheme under fault conditions. BOA is used to adjust exploration strategy of operation scheme according to observations (operation schemes previously explored). To measure the feasibility of each operation scheme, an objective function that considers security and economy is established. BOA attempts to obtain the optimal operation scheme with maximum of the objective function in as few iterations as possible. To verify the proposed method, all main pump powered off fault is simulated by RELAP5 code. The optimal operation scheme of the fault is applied, the transient result shows that all key parameters are within safe limits and SMR is maintained at relatively high power, which means that BOA has the decision-making capability to get an optimal operation scheme on fault conditions.
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Gong X, Shan W, Yuan K, Lu Z, Zhang M, Lu J, Zhang X, Huang X, Guo H, Peng M, Liu X, Zhao X, Xu G. Dietary Inflammatory Index and Leukoaraiosis in Patients with Ischemic Stroke. J Nutr Health Aging 2020; 24:473-477. [PMID: 32346684 DOI: 10.1007/s12603-020-1351-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Diet may change the chronic levels of systemic inflammation, which in turn influence the development of leukoaraiosis (LA). This study aimed to examine the association between dietary inflammatory index (DII) and LA in patients with ischemic stroke. METHODS Patients with first-ever ischemic stroke were enrolled from two centers. A semi-quantitative food frequency questionnaire (FFQ) was used to evaluate diet contents. The DII score of each patient was calculated based on the reported diet contents. Presence and degree of LA were evaluated with a magnetic resonance imaging (MRI) scan. LA was graded according to Fazekas scale. RESULTS Of the 497 enrolled patients, 337 (67.8%) were detected with LA. Patients with LA had a higher DII score (0.23 vs -0.88, P < 0.001). Logistic regression analysis detected that patients with highest quartile of DII score had an OR of 3.61 (95% CI: 2.05-6.36, P < 0.001) for LA compared with those with lowest quartile of DII. After adjusting for major confounders, the highest DII quartile remained as an independent predictor for LA (OR = 2.66, 95% CI: 1.41-5.00, P = 0.008). CONCLUSIONS A pro-inflammatory diet pattern, as indicated by higher DII values, appears to be associated with a higher risk of LA. This result suggested that dietary-mediated inflammation may involved in the pathogenesis of LA, which warrant further study.
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Affiliation(s)
- X Gong
- Gelin Xu, Department of Neurology, Jinling Hospital, First School of Clinical Medicine, Southern Medical University, 305 East Zhongshan Road, Nanjing, 210002, Jiangsu Province, China. Tel: (+) 86- 18951919349; E-Mail: ; Xiongfei Zhao, Department of Neurology, Cardiovascular and Cerebrovascular Disease Hospital of Meishan, Meishan 620000, Sichuan, China. Tel: (+) 86-13609147368;
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Lubbers RJM, Liwanag AJ, Peng M, Dilokpimol A, Benoit-Gelber I, de Vries RP. Evolutionary adaptation of Aspergillus niger for increased ferulic acid tolerance. J Appl Microbiol 2019; 128:735-746. [PMID: 31674709 PMCID: PMC7027748 DOI: 10.1111/jam.14505] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 10/28/2019] [Accepted: 10/29/2019] [Indexed: 01/07/2023]
Abstract
AIMS To create an Aspergillus niger mutant with increased tolerance against ferulic acid using evolutionary adaptation. METHODS AND RESULTS Evolutionary adaptation of A. niger N402 was performed by consecutive growth on increasing concentrations of ferulic acid in the presence of 25 mmol l-1 d-fructose, starting from 0·5 mmol l-1 and ending with 5 mmol l-1 ferulic acid. The A. niger mutant obtained after six months, named Fa6, showed increased ferulic acid tolerance compared to the parent. In addition, Fa6 has increased ferulic acid consumption and a higher conversion rate, suggesting that the mutation affects aromatic metabolism of this species. Transcriptome analysis of the evolutionary mutant on ferulic acid revealed a distinct gene expression profile compared to the wild type. Further analysis of this mutant and the parent strain provided the first experimental confirmation that A. niger converts coniferyl alcohol to ferulic acid. CONCLUSIONS The evolutionary adaptive A. niger mutant Fa6 has beneficial mutations that increase the tolerance, conversion rate and uptake of ferulic acid. SIGNIFICANCE AND IMPACT OF THE STUDY This study demonstrates that evolutionary adaptation is a powerful tool to modify micro-organisms towards increased tolerance to harsh conditions, which is beneficial for various industrial applications.
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Affiliation(s)
- R J M Lubbers
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute, Fungal Molecular Physiology, Utrecht University, Utrecht, The Netherlands
| | - A J Liwanag
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute, Fungal Molecular Physiology, Utrecht University, Utrecht, The Netherlands
| | - M Peng
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute, Fungal Molecular Physiology, Utrecht University, Utrecht, The Netherlands
| | - A Dilokpimol
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute, Fungal Molecular Physiology, Utrecht University, Utrecht, The Netherlands
| | - I Benoit-Gelber
- Centre for Structural and Functional Genomics, Concordia University, Montréal, Canada
| | - R P de Vries
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute, Fungal Molecular Physiology, Utrecht University, Utrecht, The Netherlands
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Traill RM, Luckman MS, Fisk NA, Peng M. Application of the Rate-All-That-Apply (RATA) method to differentiate the visual appearance of milk powders using trained sensory panels. Int Dairy J 2019. [DOI: 10.1016/j.idairyj.2019.05.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Li N, Cheng Y, Chen L, Zuo H, Weng Y, Zhou J, Liu H, Peng M, Song Q. Circulating tumour cell detection in epithelial ovarian cancer using dual-component antibodies targeting EpCAM and FRα. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz257.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Huang M, Peng M, Gan CH, Ma J, Liu R, Li M, He P, Ke R, Wang Y, Xia J. A case of intracranial molluscum contagiosum virus infection diagnosed by metagenomic sequencing of cerebrospinal fluid. Acta Virol 2019; 63:333-337. [PMID: 31507201 DOI: 10.4149/av_2019_313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Molluscum contagiosum is a common, self-limiting infectious disease of the skin caused by molluscum contagiosum virus (MCV). The disease primarily affects children, sexually active adults, and immunocompromised individuals. Transmission of the virus occurs by direct skin contact. Therefore, the virus is usually detected in the skin and genitals of patients. However, the diagnosis of intracranial infection by the virus is difficult if the skin/mucosa lessons are atypical or absent, and the presence of the virus in the cerebrospinal fluid has not been reported. We report a very rare case of intracranial infection by molluscum contagiosum virus. A 25-year-old girl was admitted to our hospital due to severe headache but no fever or other symptoms. Upon examination, some small flesh-colored flattened papules on both arms were noticed. Blood tests showed slightly reduced levels of CD3 and CD4 T lymphocytes. Three-dimensional time-of-flight magnetic resonance angiography (3D-TOF-MRA) and head magnetic resonance (MR) were both normal. Lumbar puncture was performed, and metagenomic sequencing was applied to the spinal fluid. The unique sequences of the molluscum contagiosum virus were identified in the fluid. The patient was then diagnosed with intracranial molluscum contagiosum virus infection. No special treatment was given. The headache gradually disappeared, and the patient was discharged. During our quarterly follow-up, the girl appeared normal, and her skin lesions disappeared. However, her CD3 and CD4 T lymphocyte counts were still slightly lower than the normal level. Our case shows that the application of metagenomic sequencing to cerebrospinal fluid is a sensitive and powerful means to detect pathogens causing intracranial infection. Keywords: Molluscum contagiosum; intracranial infection; metagenomics sequencing.
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Sun L, Peng M, Xia G, Wang J, Li R. Coupling simulation of neutron kinetics core model with CFD of IPWR steam line break accident. KERNTECHNIK 2019. [DOI: 10.3139/124.110979] [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: 11/20/2022]
Abstract
AbstractIn this paper, development of coupled codes using two-group neutron diffusion kinetics code and computational fluid dynamics (CFD) solver Fluent has been introduced. Way of coupling, time step control algorithm and spatial mesh overlays have been summarized in detail which are basic components and challenges of the coupling methodologies. The implement and verification of coupled code have been modeled on integral pressurized water reactor (IPWR) IP200 with hexagonal fuel assembly in the core and once-through steam generators. The steam line break core transient was analyzed in coupled code simulation of a core boundary conditions derived from system code simulation results. The results presented transient three-dimensional distribution of the key operation parameters such as reactor power and coolant temperature, also demonstrated the inherent safety features of IP200. The current work will bring about the ability to explore multi-scale and multi-dimensional safety transient evaluations and give more precise neutronics/thermal-hydraulics mapping.
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Affiliation(s)
- L. Sun
- 1Fundamental Science on Nuclear Safety and Simulation Technology Laboratory Harbin Engineering University, Harbin, Heilongjiang, 150001 China
| | - M. Peng
- 1Fundamental Science on Nuclear Safety and Simulation Technology Laboratory Harbin Engineering University, Harbin, Heilongjiang, 150001 China
| | - G. Xia
- 1Fundamental Science on Nuclear Safety and Simulation Technology Laboratory Harbin Engineering University, Harbin, Heilongjiang, 150001 China
| | - J. Wang
- 2Department of Engineering Physics, University of Wisconsin-Madison, Madison, Wisconsin, 53706 United States
| | - R. Li
- 1Fundamental Science on Nuclear Safety and Simulation Technology Laboratory Harbin Engineering University, Harbin, Heilongjiang, 150001 China
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Peng M, Ma D. CASE REPORT: USING NONINVASIVE HIGH FREQUENCY VENTILATION IN A PATIENT WITH AMYOTROPHIC LATERAL SCLEROSIS. Chest 2019. [DOI: 10.1016/j.chest.2019.02.286] [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] Open
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Abstract
BACKGROUND A germline deletion in BIM (B cell lymphoma-2-like 11) gene has been shown to impair the apoptotic response to epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) in vitro but its impact on response to EGFR-TKIs in patients of nonsmall cell lung cancer (NSCLC) remains controversial. METHODS Eligible literature were searched and screened. Objective response rate (ORR) and disease control rate (DCR) were extracted and aggregated with odds ratio (OR). Hazard ratio (HR) and 95% confidence interval (CI) for progression-free survival (PFS) and overall survival (OS) were extracted and aggregated based on random-effect model. RESULTS Fourteen studies including 2694 NSCLC patients were eligible. Individuals harboring BIM deletion polymorphism had inferior ORR (OR = 0.49, 95% CI: 0.34-0.70, P < .001), inferior DCR (OR = 0.50, 95% CI: 0.30-0.84, P = .009). Patients with BIM deletion had shorter OS despite of the heterogeneity between countries (in subgroup of South Korea and Taiwan, HR = 1.34, 95% CI: 1.18-1.53, P < .001; in subgroup of other countries, HR = 2.43, 95% CI: 2.03-2.91, P < .001). The pooled analysis of PFS showed great heterogeneity (I = 79%). All the reported characteristics did not account for the heterogeneity. However, 2 subgroups could be obtained through sensitivity analysis. In one subgroup, patients with BIM deletion polymorphism had shorter PFS (HR = 2.03, 95% CI: 1.71-2.40, P < .001), while in the other subgroup, no significant difference was observed (HR = 0.92, 95% CI: 0.79-1.06, P = .25). CONCLUSION NSCLC patients with BIM deletion polymorphism show poor ORR, DCR, and OS after EGFR-TKIs treatment. BIM deletion polymorphism indicates poor response to EGFR-TKIs, and it could be used as a predictor to identify those who would benefit from EGFR-TKIs in NSCLC patients.
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Affiliation(s)
| | | | | | - Meiyu Peng
- Department of Immunology, Weifang Medical University, Weifang, China
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Liu H, Liu J, Peng M, Li Y, Li C. [Effect of acupuncture on TGF-β1/Smads pathway in mice with airway remodeling mic]. Nan Fang Yi Ke Da Xue Xue Bao 2019; 38:1372-1377. [PMID: 30514688 DOI: 10.12122/j.issn.1673-4254.2018.11.16] [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 To investigate the effect of acupuncture on TGF-β1/Smads signaling pathway in the lung tissue of mice with airway remodeling. METHODS Thirty specific pathogen-free mice were randomly divided into blank group, model group and acupuncture group (n=10). Mouse models of asthma were established in the model group and the acupuncture group, and the mice in the latter group received 7 acupuncture therapies (at bilateral Fei Shu, Da Zhui and Zu Sanli, 20 min each time) every other day, starting on the 10th day after the modeling. At 24 h after the last acupuncture, the mice were subjected to inhalation of 1% OVA for 3 days, and 24 h after the last challenge, the mice were given methacholine chloride (Mch) inhalation at different concentrations for measurement of lung resistance using a noninvasive stroke volume meter. HE staining was used to observe the pathological changes in the lung tissues, and TGF-β1 levels in the the bronchoalveolar lavage fluid (BALF) and serum were detected using ELISA; Western blotting was used to detect the differential protein expressions in the airway smooth muscles between the two groups. The airway smooth muscle cells were isolated from the mice in the acupuncture group and treated with a TGF- β1 inhibitor (LY2157299), and the relative expressions of type-Ⅰ and Smads proteins were detected using Western blotting. RESULTS The mice in the model showed obvious tracheal fistula with airway pathologies including lumen narrowing, bronchial mucosa thickening, dissociation of the epithelial cells, and thickening of the alveolar septum and airway smooth muscles. These pathological changes were obviously milder in the acupuncture group. The asthmatic mice exhibited significantly increased lung resistance in positive correlation with Mch concentration. Serum TGF-β1 level was significantly elevated in asthmatic mice (P < 0.05); TGF-β1 levels in the serum and BALF were significantly lower in the acupuncture group than in the model group (P < 0.05). In the model group, the expressions of α-SMA, TGF-β1 and Smads in the airway smooth muscles were significantly higher than those in the other two groups (both P < 0.05). In cultured airway smooth muscle cells, the expressions of type-Ⅰ and Smads were significantly higher in cells treated with LY2157299 than in the control cells (P>0.05). CONCLUSIONS Acupuncture can inhibit airway remodeling by inhibiting the expression of airway TGF-β1 and down-regulating the expression of Smads and α-SMA to reduce airway inflammatory response. Airway expressions of type-Ⅰ and Smads proteins remain high after inhibiting TGF-β1. Acupuncture may control asthma progression through the TGF-β1/Smads pathway.
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Affiliation(s)
- Huihui Liu
- Department of Anesthesiology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Jiayi Liu
- Department of Anesthesiology, Sun Yat-sen Memorial Hospital Affiliated to Sun Yat-sen University, Guangzhou 510120, China
| | - Meiyu Peng
- Department of Anesthesiology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Yuhui Li
- Department of Anesthesiology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Chunqiao Li
- Department of Otolaryngology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
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Karvonen-Gutierrez C, Ylitalo K, Peng M. MID-LIFE FALLS ARE ASSOCIATED WITH INCREASED RISK OF MORTALITY IN WOMEN. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- C Karvonen-Gutierrez
- School of Public Health, Department of Epidemiology, University of Michigan, Ann Arbor, Michigan, USA
| | - K Ylitalo
- Robbins College of Health and Human Sciences, Baylor University, Waco, TX, USA
| | - M Peng
- School of Public Health, Department of Epidemiology, University of Michigan, Ann Arbor, MI, USA
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Ylitalo K, Karvonen-Gutierrez C, Peng M, Pettee Gabriel K, Lange-Maia B, Strotmeyer E. PERIPHERAL NERVE IMPAIRMENT PREDICTS FALLS AND INJURIOUS FALLS IN WOMEN: STUDY OF WOMEN’S HEALTH ACROSS THE NATION. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K Ylitalo
- Robbins College of Health and Human Sciences, Baylor University, Waco, TX, USA
| | - C Karvonen-Gutierrez
- School of Public Health, Department of Epidemiology, University of Michigan, Ann Arbor, Michigan, USA
| | - M Peng
- School of Public Health, Department of Epidemiology, University of Michigan, Ann Arbor, MI, USA
| | - K Pettee Gabriel
- UT Health Science Center at Houston, School of Public Health in Austin
| | - B Lange-Maia
- Department of Preventive Medicine and Center for Community Health Equity
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Abstract
AbstractMany integrated pressurized water reactor (IPWR) designs using natural circulation operation mainly to enhance their inherent safety. The operating characteristics of primary coolant are completely different without mechanical pumps. The designs and safety analysis of forced circulation reactors are widely researched, but the natural circulation characteristics of IPWR have not been well studied by literatures. The present work discussed the thermal-hydraulic characteristics of IPWR under natural circulation conditions by using the best estimate codes RELAP5. And the effect of system parameters on natural circulation characteristics of IPWR is also studied. The results show that, the primary coolant average temperature and steam pressure are two key parameters that affect the natural circulation stable operating load. The set value of primary coolant average temperature effects the core outlet temperature and the steam temperature, but the primary coolant flow is basically the same under different primary coolant average temperature but same load conditions. The smaller steam pressure is more conducive to produce superheated steam, but there is risk of two phase flow instability in OTSG secondary side. The rapid load change process under natural circulation indicating that the reactor has a good load tracking characteristics under natural circulation, but the rapid change of primary coolant temperature will cause oscillations in system parameters.
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Affiliation(s)
- H. Zhu
- 1Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin City 150001, China
| | - S. Zhang
- 2School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
| | - G. Xia
- 1Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin City 150001, China
| | - M. Peng
- 1Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin City 150001, China
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Peng M, Weng Y, Yao Y, Song Q. The efficacy and safety of solid tumors combination therapy with immune checkpoint inhibitor: A systematic review and meta-analysis. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy288.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Peng M, Weng Y, Yao Y, Song Q. Clinical and molecular characteristics associated with efficacy of PD-1/PD-L1 inhibitors for solid tumors: A meta-analysis. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy288.072] [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: 11/13/2022] Open
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