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Delgado J, Pritchard W, Varble N, Mikhail A, Owen J, Arrichiello A, Ray T, Lopez-Silva T, Morhard R, Yang J, Kassin M, Mueller J, Xu S, Schneider J, Karanian J, Wood B. Abstract No. 242 Distribution of Imageable Thermosensitive Drug-Loaded Gel in Ex Vivo Bovine Liver Depends on Needle Type and Injection Technique. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023] Open
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Tsui L, Ye P, Xu S, Lin Y, Chen B, Chen SP, Cheng RY. Adverse drug reactions of statin therapy in China from 1989 to 2019: a national database analysis. Eur J Hosp Pharm 2023; 30:e82-e89. [PMID: 35728952 PMCID: PMC10086733 DOI: 10.1136/ejhpharm-2022-003333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 05/24/2022] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND The baseline incidence of the adverse events of statin therapy varies between countries. Notably, Chinese patients seem more susceptible to myopathy induced by simvastatin. OBJECTIVES This research studies the adverse drug reactions (ADRs) of statin therapy in China by analysing trial-based data from the Anti-hyperlipidaemic Drug Database built by the China National Medical Products Administration Information Centre. METHODS All clinical trials involving statin therapy (including simvastatin, atorvastatin, fluvastatin, lovastatin, pravastatin and rosuvastatin) in China from 1989 to 2019 were screened. In total, 569 clinical studies with 37 828 patients were selected from 2650 clinical trials in the database. RESULTS Among the reported cases with ADRs (2822/37 828; 7.460%), gastrointestinal symptoms were the most common (1491/37 828; 3.942%), followed by liver disease (486/37 828; 1.285%), muscle symptoms (444/37 828; 1.174%) and neurological symptoms (247/37 828; 0.653%). Pravastatin (231/1988; 11.620%) caused the most common gastrointestinal side effects, followed by fluvastatin (333/3094; 10.763%). The least likely to cause gastrointestinal irritation was rosuvastatin (82/1846; 4.442%). CONCLUSION In Chinese clinical trials, gastrointestinal symptoms were the most common ADR of statin use for hyperlipidaemia and other cardiovascular diseases.
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Sun L, Jiao W, Kong Y, Yang C, Xu S, Qiao Y, Chen S. [Changes in percentage of GATA3 + regulatory T cells and their pathogenic roles in allergic rhinitis]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2023; 43:280-286. [PMID: 36946049 PMCID: PMC10034541 DOI: 10.12122/j.issn.1673-4254.2023.02.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
OBJECTIVE To investigate the changes in percentage of GATA3+ regulatory T (Treg) cells in patients with allergic rhinitis (AR) and mouse models. METHODS The nasal mucosa specimens were obtained from 6 AR patients and 6 control patients for detection of nasal mucosal inflammation. Peripheral blood mononuclear cells (PBMC) were collected from 12 AP patients and 12 control patients to determine the percentages of Treg cells and GATA3+ Treg cells. In a C57BL/6 mouse model of AR, the AR symptom score, peripheral blood OVA-sIgE level, and nasal mucosal inflammation were assessed, and the spleen of mice was collected for detecting the percentages of Treg cells and GATA3+ Treg cells and the expressions of Th2 cytokines. RESULTS Compared with the control patients, AR patients showed significantly increased eosinophil infiltration and goblet cell proliferation in the nasal mucosa (P < 0.01) and decreased percentages of Treg cells and GATA3+ Treg cells (P < 0.05). The mouse models of AR also had more obvious allergic symptoms, significantly increased OVA-sIgE level in peripheral blood, eosinophil infiltration and goblet cell hyperplasia (P < 0.01), markedly lowered percentages of Treg cells and GATA3+ Treg cells in the spleen (P < 0.01), and increased expressions of IL-4, IL-6 and IL-10 (P < 0.05). CONCLUSION The percentage of GATA3+ Treg cells is decreased in AR patients and mouse models. GATA3+ Treg cells possibly participate in Th2 cell immune response, both of which are involved in the occurrence and progression of AR, suggesting the potential of GATA3+ Treg cells as a new therapeutic target for AR.
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Sternbach AJ, Moore SL, Rikhter A, Zhang S, Jing R, Shao Y, Kim BSY, Xu S, Liu S, Edgar JH, Rubio A, Dean C, Hone J, Fogler MM, Basov DN. Negative refraction in hyperbolic hetero-bicrystals. Science 2023; 379:555-557. [PMID: 36758086 DOI: 10.1126/science.adf1065] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
We visualized negative refraction of phonon polaritons, which occurs at the interface between two natural crystals. The polaritons-hybrids of infrared photons and lattice vibrations-form collimated rays that display negative refraction when passing through a planar interface between the two hyperbolic van der Waals materials: molybdenum oxide (MoO3) and isotopically pure hexagonal boron nitride (h11BN). At a special frequency ω0, these rays can circulate along closed diamond-shaped trajectories. We have shown that polariton eigenmodes display regions of both positive and negative dispersion interrupted by multiple gaps that result from polaritonic-level repulsion and strong coupling.
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Yang L, Liu H, Han J, Xu S, Zhang G, Wang Q, Du Y, Yang F, Zhao X, Shi G. Ultra-low-dose CT lung screening with artificial intelligence iterative reconstruction: evaluation via automatic nodule-detection software. Clin Radiol 2023:S0009-9260(23)00031-4. [PMID: 36948944 DOI: 10.1016/j.crad.2023.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 01/04/2023] [Accepted: 01/15/2023] [Indexed: 02/05/2023]
Abstract
AIM To test the feasibility of ultra-low-dose (ULD) computed tomography (CT) combined with an artificial intelligence iterative reconstruction (AIIR) algorithm for screening pulmonary nodules using computer-assisted diagnosis (CAD). MATERIALS AND METHODS A chest phantom with artificial pulmonary nodules was first scanned using the routine protocol and the ULD protocol (3.28 versus 0.18 mSv) to compare the image quality and to test the acceptability of the ULD CT protocol. Next, 147 lung-screening patients were enrolled prospectively, undergoing an additional ULD CT immediately after their routine CT examination for clinical validation. Images were reconstructed with filtered back-projection (FBP), hybrid iterative reconstruction (HIR), the AIIR, and were imported to the CAD software for preliminary nodule detection. Subjective image quality on the phantom was scored using a five-point scale and compared using the Mann-Whitney U-test. Nodule detection using CAD was evaluated for ULD HIR and AIIR images using the routine dose image as reference. RESULTS Higher image quality was scored for AIIR than for FBP and HIR at ULD (p<0.001). As reported by CAD, 107 patients were presented with more than five nodules on routine dose images and were chosen to represent the challenging cases at an early stage of pulmonary disease. Among such, the performance of nodule detection by CAD on ULD HIR and AIIR images was 75.2% and 92.2% of the routine dose image, respectively. CONCLUSION Combined with AIIR, it was feasible to use an ULD CT protocol with 95% dose reduction for CAD-based screening of pulmonary nodules.
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Li D, De-Chao F, Xu S, Wei-Zhen Z, Ping H. M7G-related-lncRNA signature predicts the prognosis correlating with immunotherapy and chemotherapy responses in bladder cancer patients. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)01099-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Li D, Xu S, Zhu W, Han P. Identification of endothelial-related molecular subtypes for bladder cancer patients based on single-cell and bulk RNA sequencing data. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00479-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Zhao Y, Wang X, Zhang M, Liu J, Pu H, Li X, Zhao H, Xu S, Yang M, Bai S, Guo L, Zhao L, Li Y, Wang Y. 104P Camrelizumab combined with chemotherapy and apatinib as first-line therapy for extensive-stage small cell lung cancer: A phase II single-arm, exploratory research. IMMUNO-ONCOLOGY AND TECHNOLOGY 2022. [DOI: 10.1016/j.iotech.2022.100208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Teng X, Li X, Xu S, Zhang J, Bai Y, Ba X, Wu Z, Liu S. ERBB2 mRNA expression in HER2-low breast cancer. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01600-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Wang D, Liu H, Yu S, Jian Y, Xu S, Ying F, Zhou F, Song S, Zhang G. 190P Real-world applications of poly (ADP-ribose) polymerase inhibitors for ovarian cancer: A single-center study in China. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
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Chen Z, Qiu S, Li M, Xu S, Ge S. Effect of free ammonia shock on Chlorella sp. in wastewater: Concentration-dependent activity response and enhanced settleability. WATER RESEARCH 2022; 226:119305. [PMID: 36332297 DOI: 10.1016/j.watres.2022.119305] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 09/12/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
The unstable microbial activity and unsatisfactory settling performance impede the development and implementation of microalgal wastewater treatment, especially in high-ammonium wastewater in the presence of free ammonia (FA). The shock of FA due to the nutrient fluctuation in wastewater was demonstrated as the primary stress factor suppressing microalgal activities. Recent study has clearly revealed the inhibition mechanism of FA at a specific high level (110.97 mg/L) by inhibiting the genetic information processing, photosynthesis, and nutrient metabolism. However, the effects of various FA shock concentrations on microalgal activities and settling performance remain unknown, limiting the wastewater bioremediation efficiencies improvement and the process development. Herein, a concentration-dependent shock FA (that was employed on microalgae during their exponential growth stages) effect on microalgal growth and photosynthesis was observed. Results showed that the studied five FA shock concentrations ranging from 25 to 125 mg/L significantly inhibited biomass production by 14.7-57.0%, but sharp reductions in photosynthesis with the 36.0-49.0% decreased Fv/Fm values were only observed when FA concentration was above 75.0 mg/L. On the other hand, FA shock enhanced microalgal settling efficiency by 12.8-fold, which was believed to be due to the stimulated intra- and extracellular protein contents and thereby the enhanced extracellular polymer substances (EPS) secretion. Specifically, FA shock induced 40.2 ± 2.3% higher cellular protein content at the cost of the decreased carbohydrates (22.6 ± 1.3%) and fatty acid (39.0 ± 0.8%) contents, further improving the protein secretion by 1.21-fold and the EPS production by 40.2 ± 2.3%. These FA shock-induced variations in intra- and extracellular biomolecules were supported by the up-regulated protein processing and export at the assistance of excessive energy generated from fatty acid degradation and carbohydrates consumption. In addition, FA shock significantly decreased the biomass nutritional value as indicated by the 1.86-fold lower essential amino acid score and nearly 50% reduced essential to non-essential amino acids ratio, while slightly decreased the biodiesel quality. This study is expected to enrich the knowledge of microalgal activities and settling performance in response to fluctuant ammonium concentrations in wastewater and to promote the development of microalgal wastewater treatment.
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Khan S, Narayanan M, Olcott P, Oderinde O, Bal G, Schmall J, Xu S, Voronenko Y, Shao L, Kuduvalli G, Surucu M. Robustness of Biology-Guided Radiotherapy Delivery to PET Biodistribution Changes within Target. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Xu S, Vallei M, Hwang Siok Gek J, Tze Choong C, Wei Yang Teo N. Endotyping of nasal polyps in a multiracial Asian population. RHINOLOGY ONLINE 2022. [DOI: 10.4193/rhinol/22.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Background: Chronic rhinosinusitis is a heterogenous disease with variation in the endotypes of nasal polyps, with type 2 inflammation being more prevalent in Caucasian populations whereas Chinese populations are more heterogenous. We aim to describe the variation in endotypes for patients with chronic rhinosinusitis with nasal polyposis in our unique multiracial population. Methodology: Demographic, clinical and structured histopathological data of 66 patients who underwent sinus surgery for nasal polyposis were evaluated retrospectively. Results: 54.6% had eosinophilic disease, and 45.4% had non-eosinophilic disease with no significant demographic differences between the 2 populations. There were significantly higher peripheral eosinophil levels in patients with eosinophil-predominant inflammation on tissue histology (mean absolute eosinophil count 0.59 ± 0.18 x 109) compared with non-eosinophilic disease (mean absolute eosinophil count 0.24 ± 0.11 x 109). Structured histopathological reporting revealed that patients with eosinophilic disease had higher degree of inflammation and eosinophil aggregates. Conclusions: Our population is shown to have a slight preponderance toward eosinophilic disease, however the Chinese majority tended to have non-eosinophilic disease. Serum eosinophilia and the presence of asthma seems to correlate well with tissue eosinophilia, which can potentially be utilised as markers of type 2 inflammatory disease.
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Wang E, König R, Krychowiak M, Brezinsek S, Drews P, Gradic D, Jakubowski M, Kornejew P, Kremeyer T, Killer C, Liang Y, Neubauer O, Pandey A, Rudischhauser L, Sereda S, Schlisio G, Xu S. Radiation characteristics of detached divertor plasmas in W7-X. NUCLEAR MATERIALS AND ENERGY 2022. [DOI: 10.1016/j.nme.2022.101283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Liang W, Jiang S, Chai Y, Liu W, L. Liu, Song P, Wang Z, Zhang S, Xin H, Liu X, Xu S, Zhang H, Han Y, Shen W, Peng Z, Geng M, Yu G, Zhang X, He J. 1118P Real-world adjuvant treatment patterns in patients with stage I-III EGFR-mutated non-small cell lung cancer (NSCLC) in China: Interim analysis from the ADDRESS study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1243] [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
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Liang W, Xu E, Zhao J, Wang M, Zhang Z, Liang Y, Cheng C, Wang G, Zhong C, Liang Z, Chen X, Zheng B, Huang Y, Hu J, Xu L, Xie M, Liang N, Xu S, Liu J, Wei L, Peng Z, Zhang G, Zhang S, Xu S, He J. EP05.02-009 Aumolertinib Versus Erlotinib/Chemotherapy for Neoadjuvant Treatment of Stage IIIA EGFR-mutant NSCLC (ANSWER). J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.491] [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]
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Shi C, Houyu J, Zhou R, Wu Y, Li H, Wang Y, Xu S, Gu Z, Li J, Zhang Z, Ren G. 880P Phase II trial of the cyclin dependent kinase 4/6 inhibitor SHR6390 in patients with advanced head and neck mucosal melanoma harboring CDK4 amplification. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Li S, Xu S, Chen Y, Zhou J, Ben S, Guo M, Du M, Chu H, Gu D, Zhang Z, Wang M. LP-24 Thallium exposure promotes colorectal tumorigenesis via the aberrant m6A modification in ATP13A3. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Jin B, Ma Y, Wu Q, Bai N, Ou Q, Wu X, Shao Y, Xu S. EP08.02-073 Clinical and Genomic Analysis of Primary and Secondary MET Fusions with Intact Kinase Domain in Lung Cancer. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Xu S, Lewis J, King A, Umlauf S, Carlson K, Foss F, Girardi M. 831 Proteasome inhibitor functional profiling in CTCL. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wu X, Liu Z, Xu M, Xu S, Weng J. Rutaecarpine, a bioactive constituent isolated from tetradium ruticarpum, prevents endothelial inflammation. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.255] [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: 11/02/2022]
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Xu M, Wu X, Liu Z, Xu S, Weng J. A novel compound mouse model of diabetes, atherosclerosis and fatty liver using AAV8-PCSK9 injection in DB/DB mice. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.387] [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: 12/01/2022]
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Olagbenro M, Myers D, Ravi S, Xu S, Walter J. 284 A single-arm, prospective clinical study of blue light phototherapy as a novel treatment for Grover’s Disease and psoriasis vulgaris. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.292] [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]
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Luo Y, Rao Y, Gu X, Chai P, Yang Y, Lin J, Xu X, Jia R, Xu S. Novel MSH6 mutation predicted metastasis in eyelid and periocular squamous cell carcinoma. J Eur Acad Dermatol Venereol 2022; 36:2331-2342. [PMID: 35855666 DOI: 10.1111/jdv.18454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 06/03/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Our previous research revealed the relative local aggressiveness of eyelid and periocular squamous cell carcinoma (EPSCC), but its distinct genetic characteristics involved remain unknown. OBJECTIVES We conducted this study based on next-generation sequencing to identify the genetic distinctiveness of EPSCC and damaging mutations for possible etiology and poor prognosis. METHODS We performed sequencing using a 556-gene panel (smartonco) in 48 EPSCCs. Cox hazards model was applied to explore mutated genes that increase risk of metastasis and death. Pathogenesis of the mutations was predicted by sequence alignment algorithms. RESULTS The most commonly mutated genes were KMT2C (N=17, 35%), LRP1B (N=14, 29%), KMT2D (N=12, 25%), PTCH1(N=10, 21%) and TP53(N=10, 21%). DNA mismatch repair (MMR) genes (42%) like MSH6(19%) and MLH3(12%) were among the most frequently mutated genes. Cell cycle regulators including TP53(21%) and CDKN2A (10%) were less frequently mutated than in other squamous cell carcinomas (SCCs). Ultra violet exposure, MMR deficiency and aging were the main etiology. Of note, KMT2C has a deleterious mutation hotspot. Patients burdened with MSH6 mutation has a higher risk of overall metastasis (P=0.045, HR=5.165) and nodal metastasis (P=0.022, HR=14.038). Moreover, a hotspot mutation MSH6E52A brought an even higher risk of nodal metastasis (P=0.011, HR=18.745). CONCLUSIONS EPSCCs displayed a unique mutation profile from cutaneous SCCs and mucosal SCCs. We have identified novel damaging mutations in epigenetic regulators like KMT2C boosted early onset of EPSCCs in addition to UVR, aging or MMR deficiency. And malfunction of MMR genes worsened prognosis.
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Xu S, Zhang M, Cong J, He Y, Zhang L, Guo Y, Li X. Reduced blood circulating calcium level is an outstanding biomarker for preeclampsia among 48 types of human diseases. QJM 2022; 115:455-462. [PMID: 34411257 DOI: 10.1093/qjmed/hcab222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/11/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Calcium ion (Ca2+) is essential for human physiology by regulating various signal transduction pathways inside all cells and in the blood circulation. AIM We compared circulating Ca2+ levels in the healthy control against 48 different types of human diseases. DESIGN A total of 144 201 independent test results of Ca2+ levels from 48 clinically defined diseases and 141 679 independent test results of Ca2+ from healthy individuals who came to the hospital for annual physical examination were retrieved during the past 5 years. METHODS Ca2+ was determined by the standard 'Arsenazo III method' in the clinical laboratory of Affiliated Hospital of Qingdao University. We analyzed all data using RStudio V.1.3.1073 and python libraries 3.8. RESULTS All 48 types of diseases had decreased Ca2+ levels than the healthy control based on either mean or median values. Patients suffering from preeclampsia had the lowest Ca2+ levels among all 48 diseases. The perfect area under the curve, sensitivity, and specificity values of 1.0, 0.96 and 0.96 indicated that Ca2+ was an excellent biomarker for diagnosing preeclampsia. Extremely low Ca2+ was present in patients suffering kidney-related diseases. Since the correlation between each disease on the statistical features is proportional to their vector distance, the two-component analysis revealed that preeclampsia, sepsis and chronic obstructive pulmonary disease were closely related among 48 diseases. CONCLUSIONS All human diseases were associated with reduced circulating Ca2+ levels, where the decreased Ca2+ was a perfect biomarker for preeclampsia. Kidney-related conditions were related to over-down-regulation of Ca2+ levels. The resemblance of preeclampsia to sepsis and chronic obstructive pulmonary disease based on two-component analysis suggested that the three unrelated diseases might share a similar mechanism of the circulating Ca2+ regulation.
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