51
|
Lu YR, Yu L, Ma Q, Chen P, Qiu L, Ou CY, Lin ZZ, Liu WB. [Clinical characteristics and outcomes of myasthenia gravis patients with double positive antibodies against acetylcholine receptor and muscle-specific tyrosine kinase]. ZHONGHUA YI XUE ZA ZHI 2022; 102:942-947. [PMID: 35385966 DOI: 10.3760/cma.j.cn112137-20210912-02076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the clinical manifestations, treatment characteristics and outcomes of myasthenia gravis (MG) dually positive for anti-acetylcholine receptor antibody (AChR-Ab) and anti-muscle-specific tyrosine kinase antibody (MuSK-Ab). Method: MG patients hospitalized in the First Affiliated Hospital of Sun Yat-sen University from August 2017 to November 2020 were retrospectively collected. Thirty-four MuSK-Ab positive MG (MuSK-MG) patients, 11 double-antibodies positive MG (DP-MG) patients, and 80 AChR-Ab positive MG (AChR-MG) patients were included and allocated to three different groups. The clinical data of patients in the three groups were collected, and the differences of demographic characteristics, clinical manifestations and treatment outcomes between DP-MG patients and AChR-MG and MuSK-MG patients were analyzed. Result: The proportion of female and male patients in DP-MG group was 7/11 and 4/11 respectively, and the onset age of DP-MG was (41±27) years.The difference in gender distribution between DP-MG and AChR-MG groups was statistically significant (P<0.05). The proportion of extraocular muscle involvement in the DP-MG and MuSK-MG groups (8/11 and 52.9%) was lower than that in the AChR-MG group (83.8%), and the difference was statistically significant (P<0.05). The incidence of myasthenia crisis in DP-MG and MuSK-MG groups (54.5% and 61.8%) were higher than that in AChR-MG group (20.0%), with astatistically significant difference(P<0.05). The positive rate of neostigmine test in DP-MG and MuSK-MG groups(8/11 and 74.2%) were lower than that of AChR-MG group (96.8%), and the positive rate of low frequency repetitive nerve stimulation (RNS) in DP-MG group (5/10) was lower than that in AChR-MG group (85.1%), with statistically significant differences (all P<0.05). MuSK-Ab titer was positively correlated with the course of disease (r=0.466, P<0.05), and antibody titer decreased after symptom improvement (P<0.05). The response of patients in DP-MG and MuSK-MG groups to cholinesterase inhibitors (2/11 and 9.1%) was worse than that in the AChR-MG group (66.3%), and the incidence of side effects in the two groups (5/11 and 39.4%) was higher than that in the AChR-MG group (15.0%), with statistically significant differences (all P<0.05). There were 4 DP-MG patients underwent thymectomy, and the pathological results detected two cases of thymoma and two cases of thymic hyperplasia. Subsequent follow-up showed that 5 (5/11) DP-MG patients achieved minimal manifestation status or better status. Conclusion: The gender distribution, age of onset, pharmacological characteristics and electrophysiological examination of DP-MG patients were similar to those of MuSK-MG patients, but the severity of DP-MG patients was between that of AChR-MG and MuSK-MG patients.
Collapse
|
52
|
Wang J, Chen G, Liu N, Han X, Zhao F, Zhang L, Chen P. Strategies for improving the safety and RNAi efficacy of noncovalent peptide/siRNA nanocomplexes. Adv Colloid Interface Sci 2022; 302:102638. [PMID: 35299136 DOI: 10.1016/j.cis.2022.102638] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 03/04/2022] [Accepted: 03/04/2022] [Indexed: 12/12/2022]
Abstract
In the past decades, the striking development of cationic polypeptides and cell-penetrating peptides (CPPs) tailored for small interfering RNA (siRNA) delivery has been fuelled by the conception of nuclear acid therapy and precision medicine. Owing to their amino acid compositions, inherent secondary structures as well as diverse geometrical shapes, peptides or peptide-containing polymers exhibit good biodegradability, high flexibility, and bio-functional diversity as nonviral siRNA vectors. Also, a variety of noncovalent nanocomplexes could be built via self-assembling and electrostatic interactions between cationic peptides and siRNAs. Although the peptide/siRNA nanocomplex-based RNAi therapies, STP705 and MIR-19, are under clinical trials, a guideline addressing the current bottlenecks of peptide/siRNA nanocomplex delivery is in high demand for future research and development. In this review, we present strategies for improving the safety and RNAi efficacy of noncovalent peptide/siRNA nanocomplexes in the treatment of genetic disorders. Through thorough analysis of those RNAi formulations using different delivery strategies, we seek to shed light on the rationale of peptide design and modification in constructing robust siRNA delivery systems, including targeted and co-delivery systems. Based on this, we provide a timely and comprehensive understanding of how to engineer biocompatible and efficient peptide-based siRNA vectors.
Collapse
|
53
|
Bechtol K, Belov K, Borch K, Chen P, Clem J, Gorham P, Hast C, Huege T, Hyneman R, Jobe K, Kuwatani K, Lam J, Liu T, Mulrey K, Nam J, Naudet C, Nichol R, Paciaroni C, Rauch B, Romero-Wolf A, Rotter B, Saltzberg D, Schoorlemmer H, Seckel D, Strutt B, Vieregg A, Williams C, Wissel S, Zilles A. SLAC T-510 experiment for radio emission from particle showers: Detailed simulation study and interpretation. Int J Clin Exp Med 2022. [DOI: 10.1103/physrevd.105.063025] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
54
|
Han Y, Sun C, Gao K, Ding S, Miao Z, Zhao J, Yang Z, Wu P, Huang J, Li Z, Meng A, Zhang L, Chen P. Heterovalent oxynitride GaZnON nanowire as novel flexible anode for lithium-ion storage. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.139931] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
55
|
Chen J, Chen P, Wu L, Zhang J, He J. Effect of Aspect Ratio of Whisker on the Fibrillation of Liquid Crystalline Polymer in Polysulfone Matrix. INT POLYM PROC 2022. [DOI: 10.1515/ipp-2007-0007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The influence of content and aspect ratio of whiskers, calcium carbonate and aluminum borate, on the morphology evolution of liquid crystalline polymer (LCP) was investigated in polysulfone (PSF) matrix. The study showed that the deformation of LCP droplets was significantly promoted by adding whiskers into PSF/LCP blends, and the longer whisker produced a more pronounced fibrillation effect. The analysis of flow field and elasticity of system showed that the addition of longer whiskers increased the elasticity of materials more efficiently and enhanced the vortex in the converging flow area at the entry of capillary, which resulted in an increase of the elongational stress and promoted the formation of longer LCP fibrils in PSF/whisker system.
Collapse
|
56
|
Xiao D, Huang Y, Huang S, Zhuang J, Chen P, Wang Y, Zhang L. Targeted delivery of cancer drug paclitaxel to chordomas tumor cells via an RNA nanoparticle harboring an EGFR aptamer. Colloids Surf B Biointerfaces 2022; 212:112366. [PMID: 35144131 DOI: 10.1016/j.colsurfb.2022.112366] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 01/04/2022] [Accepted: 01/23/2022] [Indexed: 12/23/2022]
Abstract
Paclitaxel has been extensively used in clinics for cancer treatment. However, its limited solubility in aqueous solution and high occurrence of side effects have also been widely reported. In this study, we constructed a biocompatible RNA nanoparticle delivery system (3WJ-EGFRapt) that includes 3WJ (3-way junction) nanoparticle with a size of 4.85 ± 0.59 nm as a backbone and an EGFR (epidermal growth factor receptor) aptamer for specific targeting to chordomas cells, which owns the encapsulation ability of drug paclitaxel (PTX) for cancer therapy. Confocal microscopy and flow cytometry results confirmed 3WJ-EGFRapt nanoparticle exhibited excellent specific targeting to chordomas cell U-CH2 which is an EGFR(+) cell line; while the 3WJ nanoparticle lose the targeted ability. Both of the two nanoparticles own no sensitivity to lung cancer cell H520 which is an EGFR(-) cell line. Moreover, the 3WJ-EGFRapt nanoparticle encapsulated drug PTX could enhance the inhibition efficiency of chordomas tumor cells U-CH2 as compared to free PTX alone. This work demonstrates that RNA-3WJ constructed with a targeting aptamer provides a compromising targeted drug delivery ability on chordomas cells for therapeutics.
Collapse
|
57
|
YANG C, Yang C, Lin S, Chen P, Wu J, Meng J, Zhu F, Wang Y, Liang S, Feng Z, Chen X, Cai G. POS-154 A NOMOGRAM FOR PREDICTING ACUTE KIDNEY INJURY IN ADULT PATIENTS WITH MINIMAL CHANGE DISEASE. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
58
|
Chen P, Wei T, Chang Y, Chung H, Huang Y, Lin T, Lin T, Huang W. The male gender and different cut-off value of Ki-67 index may predict metastasis risk of pheochromocytoma and paraganglioma. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)01203-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
59
|
Chen P, Turco S, Wijkstra H, Zwart W, Huang P, Mischi M. Biopsy-region-based multiparametric ultrasound imaging for prostate cancer localization. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00830-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
60
|
Chen P, Yu M, Deng Z, Zhang M, Liu J, Fan J, Hu C, Tu L. Rotary table wobble error analysis and correction of a rotating accelerometer gravity gradiometer. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2022; 93:024501. [PMID: 35232129 DOI: 10.1063/5.0077151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
In a rotating accelerometer gravity gradiometer (RAGG), rotary table wobble refers to the shift in the direction of the spin axis during operation. This motion causes errors in the output of the RAGG, but the mechanism is not clear. The purpose of this paper is to analyze the relationship between rotary table wobble and RAGG errors and to propose a method for rejecting these errors. We consider the influence of attitude changes, angular velocity, and angular acceleration caused by the wobble on the specific force, and we describe the error transmission process based on the accelerometer configuration and its measurement principle. Furthermore, we show through a simulated experiment that when the angular velocity noise caused by the wobble is 1 μrad/s, this will produce errors of tens of E. We propose a post-error correction method that is based on the higher-precision RAGG model and motion measurement. The errors in the two channels of the RAGG are reduced to 3.69 E and 1.85 E after error correction. The error analysis of the effects of wobble on a RAGG and the proposed error correction method are of great significance for the development of high-precision gradiometers.
Collapse
|
61
|
Bian WG, Zhou XN, Song S, Chen HT, Shen Y, Chen P. Reduced miR-363-3p expression in non-small cell lung cancer is associated with gemcitabine resistance via targeting of CUL4A. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2021; 25:6444. [PMID: 34787845 DOI: 10.26355/eurrev_202111_27133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The article "Reduced miR-363-3p expression in non-small cell lung cancer is associated with gemcitabine resistance via targeting of CUL4A", W.-G. Bian, X.-N. Zhou, S. Song, H.-T. Chen, Y. Shen, P. Chen, published in Eur Rev Med Pharmacol Sci 2019; 23 (2): 649-659-DOI: 10.26355/eurrev_201901_16879-PMID: 30720173, has been retracted by the authors due to several inaccuracies in the research design. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/16879.
Collapse
|
62
|
Chen P, Turco S, Wijkstra H, Dilo A, Huang P, Mischi M. Prostate cancer localization by 3D multiparametric contrast-ultrasound dispersion imaging and shear-wave elastography. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)02735-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
63
|
Chen P, Finklea D, Cohen L, Jain R, Lowe K, Ratti G, Becker J, Reisch J. 276: Effects of COVID-19 pandemic on adult cystic fibrosis patients’ mental health. J Cyst Fibros 2021. [PMCID: PMC8518475 DOI: 10.1016/s1569-1993(21)01701-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
64
|
Zhao C, Qiu P, Li M, Liang K, Tang Z, Chen P, Zhang J, Fan S, Lin X. The spatial form periosteal-bone complex promotes bone regeneration by coordinating macrophage polarization and osteogenic-angiogenic events. Mater Today Bio 2021; 12:100142. [PMID: 34647005 PMCID: PMC8495177 DOI: 10.1016/j.mtbio.2021.100142] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/09/2021] [Accepted: 09/14/2021] [Indexed: 11/18/2022] Open
Abstract
Bone defects associated with soft tissue injuries are an important cause of deformity that threatens people’s health and quality of life. Although bone substitutes have been extensively explored, effective biomaterials that can coordinate early inflammation regulation and subsequent repair events are still lacking. We prepared a spatial form periosteal bone extracellular matrix (ECM) scaffold, which has advantages in terms of low immunogenicity, good retention of bioactive ingredients, and a natural spatial structure. The periosteal bone ECM scaffold with the relatively low-stiffness periosteum (41.6 ± 3.7 kPa) could inhibit iNOS and IL-1β expression, which might be related to actin-mediated YAP translocation. It also helped to promote CD206 expression with the potential influence of proteins related to immune regulation. Moreover, the scaffold combined the excellent properties of decalcified bone and periosteum, promoted the formation of blood vessels, and good osteogenic differentiation (RUNX2, Col 1α1, ALP, OPN, and OCN), and achieved good repair of a cranial defect in rats. This scaffold, with its natural structural and biological advantages, provides a new idea for bone healing treatment that is aligned with bone physiology. We provided a spatial form periosteal-bone complex. The scaffold preserved major biological components and spatial structure. The periosteum part of the scaffold acted as a physical barrier. The scaffold participated in the transformation of the macrophage phenotype. The scaffold promoted osteogenesis and angiogenesis.
Collapse
|
65
|
Shu Y, Liu Y, Cui J, Chen X, Miao L, Li Y, Zhu X, He J, Chen P, Dai S. P40.01 Maintenance Anlotinib After Induction Therapy With Platinum-Based Chemotherapy for Advanced Non-Small-Cell Lung Cancer: A Phase 2 Study. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
66
|
Sun D, Chen P, Li X, Hu J, Xu L, Fu X, Liu Y, Liu D, Liu L, Zhang X, He J. OA08.03 The 5-year Survival Rate of Postoperative Non-small Cell Lung Cancer Patients with Two Different Follow-up Patterns. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
67
|
Li H, Zhang X, Wei W, Zhang L, Chen Z, Cao M, Cheng J, Du L, Zhao J, Fang Z, Li X, Chen P. An innovative application of follicular unit extraction technique in the treatment of bromhidrosis. J Eur Acad Dermatol Venereol 2021; 35:2300-2304. [PMID: 34331817 DOI: 10.1111/jdv.17571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 07/21/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND Surgery is the most effective way to treat bromhidrosis, but postoperative complications are still the biggest obstacles for patients to choose surgical treatment. OBJECTIVES To introduce an innovative application of follicular unit extraction (FUE) in the treatment of bromhidrosis. METHODS We conducted a case series study on 20 patients who received FUE technique for the treatment of bromhidrosis. The axillary hair follicles were extracted with a one-millimetre punch. The released hair follicles were collected for histological examination. After the operation, the wounds were wrapped with moderate pressure. The dressing was removed 24 h after the FUE operation. The postoperative complications were collected, and the improvement of malodour was evaluated by the 10-point visual analogue scale. RESULTS Immediately postoperation, many needle-shaped holes appeared in the armpits. The holes healed 7 days after the operation, with no scar or pinpoint-like scars. Except for a female who complained of mild pain in the left armpit, no other patients had any discomfort. The malodour level varied between 0 and 4 during the follow-up period. The tissue examination showed that more than 90% of the completely plucked hair follicles were accompanied by apocrine glands, and many blocked and dilated apocrine glands were observed. The lumens of the blocked glands were filled with decapitation products, which were positive for K5, Brst-2 and CEA. CONCLUSIONS Patients with bromhidrosis have a positive response to FUE technique. The FUE technique is well-tolerated, with only a few postoperative complications, which deserves to be widely promoted.
Collapse
|
68
|
Shen L, Wu T, Chen P, Qin S, Ji J, Wu Y, Chen Y, Chen Y, Wang J, Wu Y. P-144 A comparative analysis of secondary data from the ToGA and EVIDENCE studies on the effectiveness of trastuzumab plus chemotherapy in Asian patients with HER2+ metastatic gastric cancer. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
|
69
|
Wu M, Chen P, Huang E, Chen Y, Kang P, Wu C, Chuo C, Huang S. Can Low-iodine Low-radiation Dose Ct Aortagram Reliability Detect The Endoleak In Endovascular Aneurysm Repair Of Aorta? J Cardiovasc Comput Tomogr 2021. [DOI: 10.1016/j.jcct.2021.06.188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
70
|
Dorkhom N, Cameron D, Chen P, Grothey A, Lucero K. P-75 Impact of an educational activity on the knowledge of oncologists regarding the latest clinical trial data on HER2-directed therapies for gastric and colorectal cancer. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
|
71
|
Olagunju AT, Morgan JA, Aftab A, Gatchel JR, Chen P, Dols A, Sajatovic M, Regenold WT. A Review of the Evidence Base for Nutrition and Nutritional Supplements in Older Adults with Bipolar Disorder: A report from the OABD task force. J Frailty Aging 2021; 10:241-246. [PMID: 34105708 DOI: 10.14283/jfa.2020.64] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVES To better understand the role of nutrition in older adults (aged 50 years or older) with bipolar disorders (OABD), we conducted a systematic review of the literature and appraise existing evidence. METHODS Following PRISMA guidelines, we searched databases including Medline/PubMed, PsychINFO, EMBASE, CINAHL, Scopus, Web of Science, Cochrane Register, FDA website, and clinical trial registries through 2019 for eligible reports. The search string combined MeSH terms for bipolar disorder, nutrition and older adults. This was supplemented by snowball searching of references in relevant studies and authors were contacted to request their work where necessary. All included studies were rated with the National Institutes of Health Study Quality Assessment Tools based on study designs. RESULTS Of 2280 papers screened, ten studies including eight observational and two interventional studies. The topic foci of the papers examined several nutrients, (including vitamin B12, vitamin D, coenzyme Q10, homocysteine, and folate), nutritional deficiencies and biochemical correlates. The prevalence rates of deficiencies varied with specific nutrients (3.7% to 71.6% for Vitamin B12 and 34.6% for Vitamin D), and between inpatient versus outpatient populations. While nutritional interventions appeared to be associated with improvement in both affective and cognitive outcomes, the sample sizes of OABD varied and were generally small. CONCLUSION While there is evidence for the benefits of nutritional interventions on affective, cognitive and overall outcome in OABD, the quality of the evidence is limited. Our findings underscore the need for high quality studies to inform evidence-based guidelines for nutritional assessment and supplemention in OABD.
Collapse
|
72
|
Zhu YM, Chen P, Shi L, Zhu T, Chen X. MiR-4429 suppresses the malignant development of ovarian cancer by targeting YOD1. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2021; 24:8722-8730. [PMID: 32964960 DOI: 10.26355/eurrev_202009_22809] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The purpose of this study was to assess the clinical significance of microRNA-4429 (miR-4429) in the development and prognosis of ovarian cancer, and to explore the regulatory role of miR-4429 in migratory potential of ovarian cancer cells. PATIENTS AND METHODS MiR-4429 levels in paired ovarian cancer species and paracancerous ones were examined. Then, the relationship between miR-4429 level and clinical features of ovarian cancer patients was analyzed. Potential influences of miR-4429 on migratory potentials in CAOV3 and SKOV3 cells were explored by transwell assay. After that, the interaction between miR-4429 and its downstream gene YOD1, and their involvement in the malignant development of ovarian cancer were finally demonstrated through Luciferase assay and rescue experiments. RESULTS The results revealed that miR-4429 was downregulated in ovarian cancer tissues and cell lines. Its level was significantly correlated with rates of lymphatic metastasis (p=0.018) and distant metastasis (p=0.012) but not with age, tumor size, and tumor stage in ovarian cancer patients. Survival analysis uncovered that a low level of miR-4429 was unfavorable to PFS and OS in ovarian cancer patients. Besides, the overexpression of miR-4429 inhibited migratory potential in CAOV3 cells, and conversely, the knockdown of miR-4429 in SKOV3 cells obtained the opposite result. Moreover, YOD1 was proved to be the downstream gene binding to miR-4429. It was highly expressed in ovarian cancer tissues and negatively regulated by miR-4429. Rescue experiments finally identified that YOD1 was responsible for migratory potential changes in ovarian cancer cells regulated by miR-4429. CONCLUSIONS MiR-4429 is downregulated in ovarian cancer tissues, and its level is closely linked to metastasis and prognosis in ovarian cancer patients. By negatively regulating YOD1 level, miR-4429 suppresses the malignant development of ovarian cancer.
Collapse
|
73
|
Chen P, Qian XK, Zhang YF, Sun XG, Shi XJ, Gao YS. KLF5 promotes proliferation in gastric cancer via regulating p21 and CDK4. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2021; 24:4224-4231. [PMID: 32373958 DOI: 10.26355/eurrev_202004_21002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study aims to investigate the expression characteristics of Krüppel-like factor 5 (KLF5) in gastric cancer (GC) and its potential correlation to pathological indexes in GC patients. Molecular mechanisms underlying the regulatory effect of KLF5 on GC progression are explored. PATIENTS AND METHODS KLF5 expressions in GC tissues were analyzed through GEPIA dataset and those collected in our hospital. By analyzing the clinical data of GC patients, the correlation between KLF5 level and pathological characteristics of GC was determined. The regulatory effects of KLF5 on proliferative ability and cell cycle progression of SGC7901 and MGC803 cells were assessed by Cell Counting Kit-8 (CCK-8), 5-Ethynyl-2'-deoxyuridine (EdU) assay, and flow cytometry. The regulation of KLF5 on expression levels of p21 and CDK4 in GC cells was determined by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR) and Western blot. RESULTS KLF5 was markedly upregulated in GC tissues. KLF5 level was positively correlated to TNM staging, tumor size, and metastasis of GC. Meanwhile, high level of KLF5 predicted poor prognosis in GC patients. The knockdown of KLF5 in SGC7901 and MGC803 cells attenuated proliferative ability and arrested cell cycle in G0/G1 phase. Both mRNA and the protein levels of p21 were upregulated, and CDK4 levels were downregulated in SGC7901 and MGC803 cells transfected with si-KLF5. CONCLUSIONS KLF5 is upregulated in GC and closely linked to pathological characteristics of GC patients. High level of KLF5 indicates poor prognosis of GC. It is believed that KLF5 may be a potential therapeutic target for GC.
Collapse
|
74
|
Ru TF, Li FF, Xie WG, Chen P, Yuan L. [A prospective randomized controlled study on the effect of balance training on lower limb movement and balance dysfunction in severe burn patients]. ZHONGHUA SHAO SHANG ZA ZHI = ZHONGHUA SHAOSHANG ZAZHI = CHINESE JOURNAL OF BURNS 2021; 37:1-7. [PMID: 33874674 DOI: 10.3760/cma.j.issn.501120-20201018-00441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the rehabilitation effect of balance training on motor and balance function of lower extremities of deep burn patients. Methods: A prospective randomized controlled study was conducted. From January 2016 to January 2020, sixty-four patients with lower limb motor and balance dysfunction after deep burn were admitted to Tongren Hospital of Wuhan University&Wuhan Third Hospital, the burn area was 30% to 70% Total Body Surface Area, and the burn depth of more than one hip, knee and ankle joint of both lower limbs and their periphery were deep second or third degree. According to the method of random number table, the patients were divided into routine training(RT) group and balance training(BT) group. There were 32 cases in each group, 22 males and 10 females in the RT group, aged 40.5 (35.5, 52.8) years old, and 24 males and 8 females in the BT group, aged 37.0 (30.0, 44.0) years old. Patients in group RT were conventionally conducted with knee joint stretch treatment, continuous passive motion treatment, lower limb muscle strength training and pressure therapy; while patients in group BT were conducted with balance training besides RT such as sitting balance, center of gravity transfer, pelvic stability, standing alternately on one leg and standing on balance pad. Patients in the 2 groups were treated for 4 months. Before treatment and after 4 months of treatment,Berg balance score, lower limb function score and balance activity self-confidence score were evaluated . The data were statistically analyzed with t test, Mann-Whitney U test, Wilcoxon signed rank test or χ² test. Results: (1) Before treatment, the difference value of Berg balance score of patients in group RT was (25±9), which was similar to (25±7) in group BT(t=-0.154,P>0.05). After 4 months of treatment, the difference value of Berg balance score of patients in group BT was (43±6), which was higher than (40±6) in group RT (t=2.028,P<0.05). The difference values of Berg balance scores of the patients in group RT and BT after 4 months of treatment were obviously higher than those before treatment(t=-15.189,-26.2,P<0.001). (2) Before treatment, the lower limb function score of patients in group RT was 25.0 (16.5,30.0), which was similar to 23.0(10.3,28.8) in group BT(Z=-1.575,P>0.05). After 4 months of treatment, the lower limb function score of patients in group BT was 55.0(35.0, 60.0) , which was significantly higher than 43.0 (36.0, 53.0) in group RT(Z=-2.744,P<0.01). The lower limb function scale of patients in group RT and BT after 4 months of treatment were obviously higher than those before treatment(Z=-4.943,-4.955,P<0.01). (3) Before treatment, the balance activity self-confidence scores of the two groups were similar(t=-0.966,P>0.05) . After 4 months of treatment , the balance activity self-confidence scores of patients in group ST was significantly higher than that in group RT (t=3.343,P<0.01). The balance activity self-confidence scores of patients in groups RT and BT after 4 months of treatment were obviously higher than those before treatment(t=-19.611,-34.300,P<0.001). Conclusions: The balance training can effectively promote the recovery of lower limb motor and balance function on the basis of conventional rehabilitation treatment for patients with lower limb motor and balance dysfunction after deep burns.
Collapse
|
75
|
Chen P, He Y, Zhou C. P47.13 Galectin-9, A Novel Prognostic Factor in Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.869] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
76
|
Chen P, He Y, Zhou C. P47.07 Exploration of Aberrant Methylation Patterns in the Chemotherapy Insensitivity of Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
77
|
Gorham PW, Ludwig A, Deaconu C, Cao P, Allison P, Banerjee O, Batten L, Bhattacharya D, Beatty JJ, Belov K, Binns WR, Bugaev V, Chen CH, Chen P, Chen Y, Clem JM, Cremonesi L, Dailey B, Dowkontt PF, Fox BD, Gordon JWH, Hast C, Hill B, Hsu SY, Huang JJ, Hughes K, Hupe R, Israel MH, Liu TC, Macchiarulo L, Matsuno S, McBride K, Miki C, Nam J, Naudet CJ, Nichol RJ, Novikov A, Oberla E, Olmedo M, Prechelt R, Rauch BF, Roberts JM, Romero-Wolf A, Rotter B, Russell JW, Saltzberg D, Seckel D, Schoorlemmer H, Shiao J, Stafford S, Stockham J, Stockham M, Strutt B, Sutherland MS, Varner GS, Vieregg AG, Wang SH, Wissel SA. Unusual Near-Horizon Cosmic-Ray-like Events Observed by ANITA-IV. PHYSICAL REVIEW LETTERS 2021; 126:071103. [PMID: 33666466 DOI: 10.1103/physrevlett.126.071103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/20/2020] [Accepted: 11/12/2020] [Indexed: 06/12/2023]
Abstract
ANITA's fourth long-duration balloon flight in 2016 detected 29 cosmic-ray (CR)-like events on a background of 0.37_{-0.17}^{+0.27} anthropogenic events. CRs are mainly seen in reflection off the Antarctic ice sheets, creating a phase-inverted waveform polarity. However, four of the below-horizon CR-like events show anomalous noninverted polarity, a p=5.3×10^{-4} chance if due to background. All anomalous events are from locations near the horizon; ANITA-IV observed no steeply upcoming anomalous events similar to the two such events seen in prior flights.
Collapse
|
78
|
Ma P, Chen P, Gao J, Guo H, Li S, Yang J, Lai J, Yang X, Zhang B, He Y. Association of MICA gene polymorphisms with thionamide-induced agranulocytosis. J Endocrinol Invest 2021; 44:363-369. [PMID: 32519199 DOI: 10.1007/s40618-020-01319-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 05/29/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND Thionamide-induced agranulocytosis (TIA), namely antithyroid drug (ATD)-induced agranulocytosis, is one of the most feared adverse effect of ATDs. It is defined as a granulocyte count of less than 0.5 × 109/L after ATD administration. Several studies reported that TIA is associated with human leukocyte antigen (HLA) and nearby genes. Our previous study found that the susceptibility genes of TIA are similar in north China and European populations. METHODS We evaluated the associations of 23 candidate single nucleotide polymorphisms (SNPs) in 37 patients with TIA and 254 patients with Graves' disease (GD) as controls by iPLEX MassARRAY system. RESULTS Five SNPs in the MHC class I polypeptide-related sequence A(MICA) genes [rs4349859 (p = 1.43E-7); rs145575084 (p = 5.79E-6); rs116135464 (p = 3.70E-5); rs148015908 (p = 3.79E-5) and rs189600525 (p = 2.15E-4)] were found to be significantly associated with TIA after Bonferroni correction. After combining with previous data of rs4349859 and HLA-B*27:05, the haplotype analysis showed that patients carrying P-A-C-A-T-T-A haplotype have a higher risk of TIA (p = 9.76E-7; OR = 14.85, 95% CI 3.63-60.77). CONCLUSION Our findings suggest that five high linked SNPs of MICA gene are significantly associated with susceptibility to TIA.
Collapse
|
79
|
Chen P, Yang SJ, Wu H, Yuan L, Xie WG. [Design and clinical application of a combined shoulder abduction orthosis for post-burn treatment]. ZHONGHUA SHAO SHANG ZA ZHI = ZHONGHUA SHAOSHANG ZAZHI = CHINESE JOURNAL OF BURNS 2021; 37:76-78. [PMID: 33499573 DOI: 10.3760/cma.j.cn501120-20200116-00027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Cicatricial contracture is likely to occur at the deep burn wound under the armpits after healing, which results in limitation of shoulder abduction and seriously affects the function of upper limbs of patients. Wearing shoulder abduction orthosis is an effective intervention method for cicatricial contracture under the armpits, but the adjustable shoulder abduction orthosis commonly used clinically at present is limited in the adjustable range, and the customized static orthosis can only maintain the corresponding angle of shoulder abduction. Besides, the above two orthosis can only have the function of unilateral extention, and they are time-consuming for patients with need of bilateral extension. Aiming at the problems mentioned above, a combined shoulder abduction orthosis was designed by the Tongren Hospital of Wuhan University & Wuhan Third Hospital. The low temperature thermoplastic sheet was cut, shaped, and assembled according to the patient's measurement data of abdomen, upper arm, and lumbar to prepare the combined shoulder abduction orthosis. This abduction orthosis can not only extend the cicatrix contracture under the armpits progressively and extensively, so as to effectively prevent the cicatricial contracture under the armpits, but also can select unilateral or bilateral extension based on the contracture limits for shoulder abduction, thus saving time for both medical workers and patients in relevant treatment.
Collapse
|
80
|
Chen P, Guo Y, Huang R, Xiao J, Cheng Z. Spinal schwannoma causes acute subarachnoid haemorrhage: A case report and literature review. Neurochirurgie 2021; 67:495-499. [PMID: 33450272 DOI: 10.1016/j.neuchi.2020.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 11/23/2020] [Accepted: 12/22/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Spinal schwannomas that arise from spinal nerve root sheaths are the most common intradural extramedullary spinal tumours and are often accompanied by nerve roots or spinal cord irritation symptoms. The phenomenon of spinal schwannoma causing subarachnoid haemorrhage (SAH) is rare, with ependymoma of the conus medullaris accounting for most cases. CASE REPORT A 45-year-old man was admitted to our hospital due to progressive lower limb weakness and sudden back pain after hard physical work. The patient had not been able to walk for 2hours upon admission. An emergency magnetic resonance imaging (MRI) scan showed that the spinal cord at the C6-T4 level was severely compressed by a subdural mass. During the emergency operation, exploration of the dura and arachnoid mater revealed a fresh blood clot covering a tumour located on the ventral side of the spinal cord. The size of the tumour was approximately 3×2×1cm without adhesion to the surrounding tissue, but the drainage vein was ruptured. Postoperative pathology showed that the tumour was a schwannoma with areas of fresh haemorrhage and focal necrosis. CONCLUSIONS Spinal schwannomas presenting with SAH are rare events. In our opinion, spinal pathology with rapid progression of neurological symptoms requires early diagnosis and emergency management. Complete excision of haemorrhagic tumours is the goal of treatment to prevent recurrence, which can effectively avoid irreversible damage to the spinal cord resulting from spinal cord compression.
Collapse
|
81
|
Yao X, Chen P, Cheng T, Sun K, Megharaj M, He W. Inoculation of Bacillus megaterium strain A14 alleviates cadmium accumulation in peanut: effects and underlying mechanisms. J Appl Microbiol 2021; 131:819-832. [PMID: 33386698 DOI: 10.1111/jam.14983] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 12/01/2020] [Accepted: 12/21/2020] [Indexed: 11/30/2022]
Abstract
AIMS A cadmium (Cd)-tolerant Bacillus megaterium strain A14 was used to investigate the effects and mechanisms of bacterial inoculation on peanut growth, Cd accumulation in grains and Cd fixation in Cd-contaminated soil. METHODS AND RESULTS Spectroscopic analysis showed that A14 has many functional groups (-OH, -NH2 and -COO et al.) distributed on its surface. The pot experiment indicated that compared to the Cd-contaminated soil alone treatment, inoculation with strain A14 increased shoot and root biomass by 59·93 and 58·31% respectively. The accumulation of Cd in grains decreased by 48·14%, while the proportion of exchangeable Cd in soil decreased from 40 to 26% in A14 inoculated soil. CONCLUSIONS Inoculation with B. megaterium A14 improved peanut plant growth via (i) adsorbing Cd2+ through functional groups on cell surface, (ii) immobilization of Cd in soil through extracellular secretions, (iii) scavenging the reactive oxygen species through production of antioxidant enzymes, and (iv) by reducing the phytoavailable Cd through regulation of Cd transport gene expression. SIGNIFICANCE AND IMPACT OF THE STUDY This study provided a new sight on microbial approach for the chemical composition transformation of soil Cd and associated food safety production, which pointed out an efficient way to improve peanut cultivation.
Collapse
|
82
|
Fang SH, Chen L, Chen HH, Li YF, Luo HB, Hu DQ, Chen P. MiR-15b ameliorates SONFH by targeting Smad7 and inhibiting osteogenic differentiation of BMSCs. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2020; 23:9761-9771. [PMID: 31799643 DOI: 10.26355/eurrev_201911_19539] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to explore the role of micro ribonucleic acid (miR)-15b in steroid-induced osteonecrosis of the femoral head (SONFH) and its potential mechanism. PATIENTS AND METHODS Bone marrow tissues were collected from 5 patients with glucocorticoid (GC)-induced ONFH (GC-ONFH, GC group) and 5 patients with secondary ONFH (control group) undergoing total hip replacement in our hospital from July 2016 to August 2017. Subsequently, bone marrow mesenchymal stem cells (BMSCs) were separated from bone marrow extracted and cultured in vitro. Quantitative Reverse Transcription-Polymerase Chain Reaction (qRT-PCR) assay was used to detect differentially expressed miRNAs in BMSCs of patients in GC group and control group. BMSCs were treated with different concentrations of GC. Next, the effect of GC on tmiR-15b expression level was detected via qRT-PCR. Alizarin red staining assay was performed to evaluate the effect of miR-15b on osteogenic differentiation of BMSCs. Meanwhile, the potential targets of miR-15b were predicted using bioinformatics software and validated through luciferase reporter gene assay, respectively. Additionally, Western blotting was conducted to determine the effect of miR-15b on the protein expression of the transforming growth factor beta (TGF-β) signaling pathway. RESULTS Flow cytometry demonstrated that the proportion of cluster of differentiation 44 (CD44)-positive cells was 99.7%, while that of CD45-positive cells was only 0.17% in cultured BMSCs. This suggested that the purity of BMSCs was relatively high. QRT-PCR assay indicated that the expression level of miR-15b declined significantly in BMSCs of GC group when compared with control group (p<0.01). The osteogenic differentiation capacity of BMSCs was significantly strengthened in GC group compared with control group (p<0.01). Subsequent qRT-PCR assay revealed that GC down-regulated the expression level of miR-15b in a dose-dependent manner. Besides, the osteogenic differentiation capacity of cells was remarkably strengthened in miR-15b mimic treatment group when compared with control group (p<0.01). Bioinformatics software (TargetScan) predicted that drosophila mothers against decapentaplegic protein 7 (Smad7) might be a potential target of miR-15b, which was indicated by luciferase reporter gene assay. In comparison with control group, miR-15b mimic treatment group exhibited significantly down-regulated protein expression level of Smad7, increased expression level of phosphorylated (p)-Smad2/3 and up-regulated messenger RNA (mRNA) expression level of runt-related transcription factor 2 (Runx2). However, the protein expression level of Smad7 and p-Smad2/3 and the mRNA expression level of Runx2 exhibited opposite trends in miR-15b inhibitor treatment group. CONCLUSIONS MiR-15b relieves SONFH by targeting Smad7 and repressing osteogenic differentiation of BMSCs.
Collapse
|
83
|
Lu B, Li JY, Sun MJ, Chen B, Chen P, Cheng YH, Huang JF. [The malignant phenotype of calcineurin B homologous protein 2 in gastric cancer and its clinical significance]. ZHONGHUA YI XUE ZA ZHI 2020; 100:3694-3701. [PMID: 33342147 DOI: 10.3760/cma.j.cn112137-20200421-01252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the expression and clinical significance of calcineurin B homologous protein 2 (CHP2) in gastric cancer (GC) and its effect on malignant phenotype of GC cells. Methods: The protein expression of CHP2 in 297 GC tissue and 198 normal gastric tissue samples were detected by immunohistochemistry. The relationship between the expression of CHP2 and clinicopathologic parameters of GC were analyzed. CHP2-overexpression plasmids and CHP2-interference plasmids were transfected into GC cell lines respectively. Wound healing assay and Transwell experiment was used to detect the invasion and migration ability of GC cells, and cell counting kit-8 (CCK-8) method was used to detect the proliferation ability of GC cells. Results: The positive expression rate of CHP2 in GC was 68.7% (204/297), which was higher in benign margin (34.1%) (31/91), chronic gastritis (59.1%) (13/22), intestinal metaplasia (34.2%) (13/38), low-grade intraepithelial neoplasia (40.0%) (12/30) and high-grade intraepithelial neoplasia (41.2%)(7/17). The positive expression of CHP2 was correlated with tumor, node and metastasis (TNM) stage, lymph node metastasis and distant metastasis (all P<0.05), but not with gender, age, Laurén classification, human epidermal growth factor receptor 2 (HER2) levels, depth of invasion, carcinoembryonic antigen (CEA) level and CEA 19-9 level (all P>0.05). The results of multivariate analysis showed that high expression of CHP2 and TNM stage were both independent parameters for predicting GC patient prognosis (both P<0.05). Interference of CHP2 expression in HGC-27 cells suppressed proliferation and migration significantly (P<0.05). However, over-expression CHP2 in AGS cells promoted proliferation, and migration significantly (P<0.05). Conclusion: CHP2 plays an important role in the development of GC, which is expected to be a molecular marker for patient prognosis and a potential target of targeted therapy for GC patients.
Collapse
|
84
|
Lin SP, Meng JL, Sun XW, Cui J, Liang S, Yin Z, Sun XF, Chen P. [Clinical characteristics and related factors of acute tubular necrosis in patients with minimal change disease]. ZHONGHUA YI XUE ZA ZHI 2020; 100:3494-3497. [PMID: 33256290 DOI: 10.3760/cma.j.cn112137-20200729-02238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical characteristics and related factors of acute tubular necrosis (ATN) in patients with minimal change disease (MCD). Methods: Patients from Chinese PLA General Hospital who were pathologically diagnosed with MCD and had clinical manifestations of nephrotic syndrome from January 1, 2013 to December 31, 2019 were included. The clinical and pathological data of patients were retrospectively analyzed. Meanwhile, the incidence and clinical characteristics of ATN in different age groups were compared. The risk factors for ATN were assessed using binary logistic regression. Results: A total of 525 patients were included, with a gender ratio of 1.56∶1 (male: female), aged 33 (21, 48) years old. ATN occurred in 49 (9.3%) of 525 patients, of which 34 were male and 15 were female. The incidence of ATN increased with age in MCD patients of different age groups (χ(2)=31.442, P<0.001). The incidence of ATN in groups of age≤20 years, 21-40 years, 41-60 years, and >60 years was 2.4% (3/123), 5.2% (10/192), 13.2% (20/152) and 27.6% (16/58), respectively. Elevations of alanine aminotransferase (ALT), aspartate aminotransferase (AST), γ-glutamyl transpeptidase (GGT) and serum IgE occurred in 92 patients (17.5%), 53 patients (10.1%), 99 patients (18.9%), and 303 patients (57.7%), respectively. There were significant differences in age, ALT, serum creatinine, serum urea nitrogen, history of diabetes and history of hypertension between non-ATN group and ATN group (all P<0.05). The results of logistic regression analysis showed that>40 years old (OR=6.283, 95% CI: 2.695-14.649, P<0.001) and serum albumin (OR=0.924, 95% CI: 0.857-0.997, P=0.040) was independently associated with ATN in MCD patients. Conclusion: Age>40 years is an independent risk factor and serum albumin is a protective factor for ATN in MCD patients.
Collapse
|
85
|
Guichardant M, Chen P, Liu M, Lo Van A, Jouvène C, Bernoud-Hubac N, Véricel E, Lagarde M. Double lipoxygenation of polyunsaturated fatty acids of nutritional interest. Prostaglandins Leukot Essent Fatty Acids 2020; 162:102185. [PMID: 33038835 DOI: 10.1016/j.plefa.2020.102185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 09/24/2020] [Accepted: 09/24/2020] [Indexed: 10/23/2022]
Abstract
Double lipoxygenation of polyunsaturated fatty acids having at least three methylene-interrupted double bonds can be made by two lipoxygenases, e.g. 5- and 12-LOX, or 15-LOX only, followed by reduction of the hydroperoxide products through the glutathione peroxidase action. Several biological activities have been reported for such a double 15-LOX product of docosahexaenoic acid, called protectin DX to differentiate it from protectin D1, a stereo and geometric isomer described for its potent anti-inflammatory potential. The geometric characteristic of the double lipoxygenase products is the conjugated triene E,Z,E (trans,cis,trans), which appears crucial in their biological activities. A focus is also done on single lipoxygenation of mono-hydroxylated products first made by aspirin-treated cyclooxygenase-2. The resulting (R,S)-diOH, E,Z,E conjugated trienes, instead of the (S,S)-diOH isomer in case of double lipoxygenation, seem to be even more active for some biological effects, making biologically relevant the single lipoxygenation in aspirin-treated situations.
Collapse
|
86
|
Zhou Z, Lu S, Qin S, Chen J, Gu K, Sun P, Pan Y, Yu G, Ma K, Shi J, Sun Y, Yang L, Chen P, Liu A, He J, Li X, Wang L. 388P Biosimilar TAB008 compared with bevacizumab in advanced non-squamous, non-small cell, EGFR wildtype lung cancer patients. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
87
|
Wang M, Chen P, Meyre P, Ali M, Heo R, McIntyre W, Healey J, Whitlock R, Lamy A, Devereaux P, Conen D. Perioperative atrial fibrillation and risk of stroke after cardiac surgery: a systematic review and meta-analysis. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Perioperative atrial fibrillation (POAF) after cardiac surgery has been associated with an increased risk of stroke. However, many previous studies have not systematically excluded patients with pre-existing AF. As such, the association between new-onset POAF and stroke risk has not been well established.
Purpose
To perform a systematic review and meta-analysis on the short and long-term risks of stroke in patients experiencing new-onset POAF after cardiac surgery.
Methods
We searched MEDLINE, EMBASE, and the Cochrane Library databases for studies comparing the risk of stroke in patients with versus without new-onset POAF after cardiac surgery. Studies were included in our review if they enrolled ≥100 patients and defined POAF as new-onset AF in patients with no history of preoperative AF. Data were independently extracted in duplicate. The quality of studies was assessed using the Newcastle Ottawa Scale. Random-effects meta-analysis was used to calculate summary risk ratios. Short-term stroke risk was calculated using events occurring either in-hospital or ≤30 days after surgery, and long-term risk was calculated using events occurring >30 days after surgery.
Results
After reviewing 11,791 citations, 46 studies met the inclusion criteria. These studies included 364,822 patients, of which 76,388 (20.9%) developed new-onset POAF. The incidence of stroke was higher among patients with POAF versus no POAF (n=44 studies; incidence 2.76% vs. 1.53%; relative risk (RR) 1.91, 95% CI 1.65–2.23; I2 = 78%). A sensitivity analysis of high-quality studies alone yielded similar results (n=9 studies; RR 1.74, 95% CI 1.31–2.30; I2 = 88%). Patients with POAF had a higher incidence of stroke both in the short-term (n=35 studies; 2.71% vs. 1.36%; RR 2.13, 95% CI 1.81–2.51; I2 = 69%) and long-term (n=20 studies; 1.6 vs. 1.0 per 100 patient-years; RR 1.39, 95% CI 1.24–1.57; I2 = 27%). The risk of stroke was increased in POAF patients across all types of cardiac surgery performed, including isolated CABG (n=19 studies; RR 1.93, 95% CI 1.60–2.32; I2 = 62%), isolated transcatheter aortic valve implantation (n=7 studies; RR 1.86, 95% CI 1.32–2.63; I2 = 0%), and studies including multiple procedure types (n=16 studies; RR 1.90, 95% CI 1.44–2.51; I2 = 89%).
Conclusion
New-onset POAF after cardiac surgery is associated with an increased risk of stroke, both in the short and long term. The absolute risk difference is small, and randomized trials are needed to assess the efficacy and safety of treatment interventions in this patient population.
Funding Acknowledgement
Type of funding source: None
Collapse
|
88
|
Qiu L, Chen P, Zhang G. 393P Clinical characteristics and prognosis of patients with pulmonary mucoepidermoid carcinoma: A SEER-based analysis. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
89
|
Chen P, Liu Y, Duan C, Fan H, Zeng L, Guo W, Jiang L, Xue W, He W, Tao S, Guo Z, Chen J, Tan N, He P. The effect of in-hospital high-dose vs. low-dose intensive statin in patients with non-ST segment elevation acute coronary syndrome. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Statins remain a standard treatment for acute coronary syndrome (ACS) patients. We aimed to determine the association between different dosages of in-hospital statins and the prognoses among patients receiving percutaneous coronary intervention (PCI).
Methods
NSTE-ACS patients were retrospectively enrolled from January 2010 to December 2014 from five centres in China. Patients receiving either atorvastatin or rosuvastatin during their hospitalizations were included. All the patients were categorized into high-dose statin group (40mg atorvastatin or 20mg rosuvastatin) or low-dose statin group (20mg atorvastatin or 10mg rosuvastatin). In-hospital events and long-term all-cause death was recorded.
Results
Of the 7,008 patients included in the study, 5,248 received low-dose intensive statin (mean age: 64.28±10.39; female: 25.2%), and 1,760 received high-dose intensive statin (mean age: 63.68±10.59; female: 23.1%). There was no significant difference in in-hospital all-cause death between the two groups (adjusted OR, 1.27; P=0.665). All-cause death was similar between the two groups during the long-term follow-up period (30-day: adjusted HR, 1.28; P=0.571; 3-year: adjusted HR, 0.83; P=0.082). However, there was a robust association between the high-dose statin and the reduction in in-hospital dialysis (adjusted OR, 0.11; P=0.030).
Conclusions
The in-hospital high-dose intensive statin is not associated with lower risks of in-hospital or follow-up all-cause death in NSTE-ACS patients undergoing PCI. Considering the robust beneficial effect of in-hospital dialysis, an individualized high-dose intensive statin can be rational in specified populations.
Univariate and multivariate analyses
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): The Science and Technology Planning Project of Guangzhou City athe China Youth Research Funding
Collapse
|
90
|
Wei HC, Xing SJ, Chen P, Wu XF, Gu X, Luo L, Liang XF, Xue M. Plant protein diet-induced hypoimmunity by affecting the spiral valve intestinal microbiota and bile acid enterohepatic circulation in Amur sturgeon (Acipenser schrenckii). FISH & SHELLFISH IMMUNOLOGY 2020; 106:421-430. [PMID: 32798694 DOI: 10.1016/j.fsi.2020.08.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 08/10/2020] [Accepted: 08/11/2020] [Indexed: 06/11/2023]
Abstract
An 8-week growth trial was conducted to study enterohepatic recirculation of bile acid metabolism and the intestinal microbiota of Amur sturgeon (Acipenser schrenckii) fed with three diets, including 540 g/kg, 270 g/kg or 0 g/kg fishmeal, which was correspondingly replaced by a plant protein blend (named P0, P50 and P100, respectively). The diets were designed to be isonitrogenous, isoenergetic and essential nutrients balanced. With rising levels of dietary plant protein, disruption of the spiral valve intestinal microbiota and more morbidity with liver disease were observed in the P100 group, although there were no haematological abnormalities observed. An obvious bile acids enterohepatic circulation disorder was found with phenotypes of increased liver bile acids compensatory synthesis, and reduced expression of bile acid receptors (FXR and TGR5), which induced BA accumulative toxicity. Accompanied by increased oxidative stress, it further induced hepatic lesions and hypoimmunity, which were non-negligible reasons for the high mortality and low utilization ability of plant protein by Amur sturgeon.
Collapse
|
91
|
Xie J, Chen P, Rittel D. Finite element modeling of multiple water droplets impact onto a rough surface: Re-assessing Sa and surface wavelength. J Mech Behav Biomed Mater 2020; 110:103816. [DOI: 10.1016/j.jmbbm.2020.103816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/17/2020] [Accepted: 04/20/2020] [Indexed: 02/06/2023]
|
92
|
Wang MY, Chen P, Wang CP. Targeted regulation of miR-17-5p on TMOD1 promotes the development of cardia cancer. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2020; 23:6170-6178. [PMID: 31364131 DOI: 10.26355/eurrev_201907_18430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Cardia cancer is a common type of gastric cancer. Most clinical prevention and prognosis focus on surgical resection, but the efficacy is not satisfactory. Studying the molecular mechanism of pathogenesis of cardia cancer helps us intervene in prognosis and treatment. MATERIALS AND METHODS a total of 134 normal cases related to cardia cancer and 62 cases of cardia cancer samples from the Gene Expression Omnibus (GEO) database were collected. A series of bioinformatics analyses, including differential gene analysis, co-expression analysis, enrichment analysis, regulator prediction, and (Protein-protein interaction) PPI analysis validation were performed. RESULTS Differential analysis highlighted 10882 differential genes (p<0.05). Weighted gene co-expression network analysis indicated 6 functional disorder modules. TMOD1, JAM2, SPARC, ST18, NOS1 were key genes of each module. Enrichment analysis showed the dysfunctional module genes were mainly related to the proteinaceous extracellular matrix and neuroactive ligand-receptor interaction. Pivotal analysis of ncRNA demonstrated miR-17-5p significantly regulates modular genes including m1, m3, and m5. Target genes were backtracked according to the key regulators. Then, the Module_target gene_ncRNA interaction network diagram was constructed. The network shows m1 has the strongest regulation effect in the network. PPI showed that the core gene TMOD1 (Tropomodulin1) of m1 was at TOP10 in the algorithm. In other words, PPI indicated the importance of TMOD1 in the interaction network. CONCLUSIONS We believe that targeted regulation of miR-17-5p on TMOD1 gene affects the neuroactive ligand-receptor interaction pathway, and it promotes proliferation and apoptosis of cardia cancer cells.
Collapse
|
93
|
Du C, Wang HX, Chen P, Chen CH. STAT3-induced upregulation of lncRNA DUXAP8 functions as ceRNA for miR-577 to promote the migration and invasion in colorectal cancer through the regulation of RAB14. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2020; 23:6105-6118. [PMID: 31364111 DOI: 10.26355/eurrev_201907_18424] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Previous reports have shown that long non-coding RNAs (lncRNAs) are involved in a series of biological processes and cancer in humans. Recently, lncRNA double homeobox A pseudogene 8 (DUXAP8) was frequently reported to be aberrantly expressed in multiple cancers and play a functional role. However, the exact expression, function, and mechanism of DUXAP8 in colorectal cancer (CRC) remain uncovered. PATIENTS AND METHODS The expression levels of DUXAP8 were detected by Reverse Transcription-Polymerase Chain Reaction (RT-PCR). The clinical influence of DUXAP8 in HCC patients was statistically analyzed. Luciferase reporter and ChIP assays were carried out for the exploration of whether STAT3 was able to bind to the promoter of DUXAP8. Lost-of-function experiments were carried out for the determination of possible cellular function in CRC cells. The modulating associations between DUXAP8 and miR-577 and RAB14 were further studied in CRC cells. RESULTS In this study, we first provided evidence that DUXAP8 was overexpressed in CRC and increasing expression of DUXAP8 indicates advanced clinical progression and poor survival of CRC patients. Then, transcription factor STAT3 was demonstrated to upregulate DUXAP8 in CRC cells. Functional assays via in vitro assays revealed that DUXAP8 knockdown through shRNA in HCT116 and LOVO cells inhibited cell proliferation, migration and invasion, and promoted apoptosis. Furthermore, an inverse relationship between DUXAP8 and miR-577 was found. In addition, we confirmed that DUXAP8 served as competing endogenous RNA to modulate miR-577, which can modulate RAB14, a well-studied oncogene. CONCLUSIONS Our study revealed that the STAT3-induced up-regulation of DUXAP8 might provide a new perspective for CRC therapy.
Collapse
|
94
|
Lu P, Zehtab Yazdi A, Han XX, Al Husaini K, Haime J, Waye N, Chen P. Mechanistic Insights into the Cytotoxicity of Graphene Oxide Derivatives in Mammalian Cells. Chem Res Toxicol 2020; 33:2247-2260. [PMID: 32786550 DOI: 10.1021/acs.chemrestox.9b00391] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Graphene oxide derivatives (GODs) have superb physical/chemical properties with promise for applications in biomedicine. Shape, size, and chemistry of the GODs are identified as the key parameters that impact any biological system. In this work, the GODs with a wide range of shapes (sheets, helical/longitudinal ribbons, caps, dots), sizes (10 nm to 20 μm), and chemistry (partially to fully oxidized) are synthesized, and their cytotoxicity in normal cells (NIH3T3) and colon cancer cells (HCT116) are evaluated. The mechanisms by which the GODs induce cytotoxicity are comprehensively investigated, and the toxic effects of the GODs on the NIH3T3 and the HCT116 cells are compared. While the GODs show no toxicity under the size of 50 nm, they impose moderate toxic effects at the sizes of 100 nm to 20 μm (max viability >57%). For the GODs with the similar size (100-200 nm), the helical ribbon-like structure is found to be much less toxic than the longitudinal ribbon structure (max viability 83% vs 18%) and the tubular structure (0% viability for the oxidized carbon nanotubes). It is also evident that the level of oxidation of the GOD is inversely related to the toxicity. Although the extent of GOD-induced cytotoxicity (reduction of cell viability) to the two cell lines is similar, their toxicity mechanisms are interestingly found to be substantially different. In the HCT116 cancer cells, cell membrane leakage leads to DNA damage followed by cell death, whereas in the NIH3T3 normal cells, increases in oxidative stress and physical interference between the GODs and the cells are identified as the main toxicity sources.
Collapse
|
95
|
Zhao C, Yang J, Liu Y, Gao M, Chen P, Zheng J, Zhao S. Horizontal sound localisation and speech perception in Bonebridge-implanted single-sided deafness patients. J Laryngol Otol 2020; 134:1-8. [PMID: 32933596 DOI: 10.1017/s0022215120001899] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVE This study aimed to investigate the benefit of Bonebridge devices in patients with single-sided deafness. METHOD Five patients with single-sided deafness who were implanted with Bonebridge devices were recruited in a single-centre study. Participants' speech perception and horizontal sound localisation abilities were assessed at 6 and 12 months post-operatively. Speech intelligibility in noisy environments was measured in three different testing conditions (speech and noise presented from the front, speech and noise presented from the front and contralateral (normal ear) side separately, and speech presented from the ipsilateral (implanted Bonebridge) side and noise from the contralateral side). Sound localisation was evaluated in Bonebridge-aided and Bonebridge-unaided conditions at different stimuli levels (65, 70 and 75 dB SPL). RESULTS All participants showed a better capacity for speech intelligibility in quiet environments with the Bonebridge device. The speech recognition threshold with the Bonebridge device was significantly decreased at both short- and long-term follow up in the speech presented from the ipsilateral (implanted Bonebridge) side and noise from the contralateral side condition (p < 0.05). Additionally, participants maintained similar levels of sound localisation between the Bonebridge-aided and unaided conditions (p > 0.05). However, the accuracy of localisation showed some improvement at 70 dB SPL and 75 dB SPL post-operatively. CONCLUSION The Bonebridge device provides the benefit of improved speech perception performance in patients with single-sided deafness. Sound localisation abilities were neither improved nor worsened with Bonebridge implantation at the follow-up assessments.
Collapse
|
96
|
Zhang M, Chen P, Li H. PCV19 Economic Burden of Disease on Patients with ACUTE Myocardial Infarction Combining Dyslipidemia in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
97
|
Zhang H, Zhang XH, Chen P, Li BZ. [Cryptococcal meningitis in the treatment of CLL with ibrutinib: a case report and literature review]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2020; 41:428-430. [PMID: 32536143 PMCID: PMC7342065 DOI: 10.3760/cma.j.issn.0253-2727.2020.05.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
98
|
Sreehari M, Chen P. Study of the limiting behavior of delayed random sums under non-identical distributions setup and a Chover type LIL. THEORY OF PROBABILITY AND MATHEMATICAL STATISTICS 2020. [DOI: 10.1090/tpms/1103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
99
|
Zhi J, Li S, Han M, Chen P. Biomolecule-guided cation regulation for dendrite-free metal anodes. SCIENCE ADVANCES 2020; 6:eabb1342. [PMID: 32821832 PMCID: PMC7413738 DOI: 10.1126/sciadv.abb1342] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 06/26/2020] [Indexed: 05/22/2023]
Abstract
Lithium (Li) or zinc (Zn) metal anodes have attracted interest for battery research due to their high theoretical capacities and low redox potentials. However, uncontrollable dendrite growth, especially under high current (>4 mA cm-2), precludes reversable cycling in Li or Zn metal batteries with a high-loading (>4 mAh cm-2), precludes reversable cycling in Li or Zn metal batteries with high-loading (>4 mAh cm-2) cathode. We report a cation regulation mechanism to address this failure. Collagen hydrolysate coated on absorbed glass mat (CH@AGM) can simultaneously induce a deionization shock inside the separator and spread cations on the anode to promote uniform electrodeposition. Employing 24 mAh cm-2 cathodes, Li and Zn metal batteries with CH@AGM delivered 600 cycles with a Coulombic efficiency of 99.7%. In comparison, pristine Li and Zn metal batteries only survive for 10 and 100 cycles, respectively. This approach enabled 400 cycles in a 200 Ah-class Zn metal battery, which suggests a scalable method to achieve dendrite-free anodes in various batteries.
Collapse
|
100
|
Wildeboer RR, Sammali F, van Sloun RJG, Huang Y, Chen P, Bruce M, Rabotti C, Shulepov S, Salomon G, Schoot BC, Wijkstra H, Mischi M. Blind Source Separation for Clutter and Noise Suppression in Ultrasound Imaging: Review for Different Applications. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2020; 67:1497-1512. [PMID: 32091998 DOI: 10.1109/tuffc.2020.2975483] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Blind source separation (BSS) refers to a number of signal processing techniques that decompose a signal into several "source" signals. In recent years, BSS is increasingly employed for the suppression of clutter and noise in ultrasonic imaging. In particular, its ability to separate sources based on measures of independence rather than their temporal or spatial frequency content makes BSS a powerful filtering tool for data in which the desired and undesired signals overlap in the spectral domain. The purpose of this work was to review the existing BSS methods and their potential in ultrasound imaging. Furthermore, we tested and compared the effectiveness of these techniques in the field of contrast-ultrasound super-resolution, contrast quantification, and speckle tracking. For all applications, this was done in silico, in vitro, and in vivo. We found that the critical step in BSS filtering is the identification of components containing the desired signal and highlighted the value of a priori domain knowledge to define effective criteria for signal component selection.
Collapse
|