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Liu J, Xiang Y, Tang D, Xu G. Gastrointestinal: A case of type 1 gastric neuroendocrine tumor with multiple endocrine neoplasia type 1. J Gastroenterol Hepatol 2022. [PMID: 36343942 DOI: 10.1111/jgh.16026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 09/13/2022] [Accepted: 09/26/2022] [Indexed: 11/09/2022]
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Liu Q, Qu Y, Wang K, Wu R, Zhang Y, Huang X, Chen X, Wang J, Zhang S, Zhang J, Xiao J, Yi J, Xu G, Luo J. Lymph Node Metastasis Spread Patterns and the Effectiveness of Prophylactic Neck Irradiation in Sinonasal Squamous Cell Carcinoma (SNSCC). Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1342] [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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Kang X, Ma R, Li X, Chen Y, Chen H, Liang Z, Zhou H, Xu G, Dong C, Lin J. 10P Detection of early-stage lung cancer using 5-hydroxymethylcytosine signatures in circulating cell-free DNA. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.09.011] [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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Zhang P, Zhang Q, Hu X, Li W, Tong Z, Sun T, Teng Y, Wu X, Ouyang Q, Yan X, Cheng J, Liu Q, Feng J, Wang X, Xu G, Wu F, Xia B, Xu B. 229P Dalpiciclib plus fulvestrant in HR+/HER2− advanced breast cancer (ABC): Updated analysis from the phase III DAWNA-1 trial. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Dong B, Xu G, Yang R, Wang Q. Chemical Upcycling of Poly(ε-caprolactone) to Valuable Chemical via TBD-Catalyzed Efficient Methanolysis Strategy. Chem Asian J 2022; 17:e202200667. [PMID: 35983673 DOI: 10.1002/asia.202200667] [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: 06/25/2022] [Revised: 08/01/2022] [Indexed: 11/09/2022]
Abstract
As a petroleum-derived polyester material, poly(ε-caprolactone) (PCL) plays an essential role in biomedical field due to its excellent biocompatibility and non-toxicity. With the increasing use of PCL in recent years, its waste disposal has become a significant challenge. To address this challenge, we demonstrate a high-efficiency organocatalysis strategy for the chemical upcycling of PCL to valuable chemical. Among organocatalysts explored in this article, 1,5,7-triazabicyclo[4,4,0]dec-5-ene (TBD) shows superior performance for transforming end-of-life poly(ε-caprolactone) into highly value-added methyl 6-hydroxyhexanoate with quantitative conversion in a short time. The endwise unzipping depolymerization mechanism is corroborated by monitoring molecular weight during depolymerization process and 1 H NMR control experiments. Furthermore, this approach is also practicable for large-scale depolymerization for commercial PCL plastics, providing idea for promoting the sustainable development of PCL plastics.
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Chen G, Xu Q, Fessing M, Mardaryev A, Sharov A, Xu G, Botchkarev V. 723 DNA dioxygenases Tet2/3 regulate gene promoter accessibility and three-dimensional chromatin topology in lineage-specific loci to control hair growth. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.735] [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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Huang Y, Yang Y, Zhao Y, Guo D, Chen L, Shi L, Xu G. DOCK4 regulates ghrelin production in gastric X/A-like cells. J Endocrinol Invest 2022; 45:1447-1454. [PMID: 35302184 DOI: 10.1007/s40618-022-01785-8] [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: 01/13/2022] [Accepted: 03/08/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE Ghrelin, a gastric hormone, provides a hunger signal to the central nervous system to stimulate food intake. Ghrelin also modulates neuroinflammatory and apoptotic processes. Dedicator of cytokinesis 4 (DOCK4), a guanine nucleotide exchange factor (GEF), is involved in the regulation of neuronal polarization and axon regeneration. However, the effect of DOCK4 on ghrelin production has not been explored. METHODS The expression of DOCK4 in human and mouse stomach was examined by immunohistochemical staining. The synthesis and secretion of ghrelin in Dock4 null mice were evaluated by real-time quantitative PCR, Western blot and ELISA. The effects of DOCK4 on ghrelin production in mHypoE-42 cells were measured by real-time quantitative PCR and Western blot. RESULTS We showed that DOCK4 was expressed in both human and mouse gastric ghrelin cells. The mRNA and protein levels of gastric ghrelin, as well as ghrelin secretion, were remarkably diminished in Dock4 null mice. Furthermore, we showed that overexpression of Dock4 significantly stimulated ghrelin expression, while siRNA knockdown of endogenous Dock4 resulted in a marked decrease of ghrelin in mHypoE-N42 cells. CONCLUSIONS Our results identify DOCK4 as a critical regulator for ghrelin production in gastric X/A-like cells.
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Yang X, Sun Y, Xu G. Abstract No. 176 Single-center phase-II study of TACE combined with sorafenib plus immune checkpoint inhibitors as first-line treatment in patients with BCLC B/C hepatocellular carcinoma. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Shi JB, Sun YQ, Xu G. [Endotype-based surgical treatment of chronic rhinosinusitis]. ZHONGHUA ER BI YAN HOU TOU JING WAI KE ZA ZHI = CHINESE JOURNAL OF OTORHINOLARYNGOLOGY HEAD AND NECK SURGERY 2022; 57:130-135. [PMID: 35196755 DOI: 10.3760/cma.j.cn115330-20210819-00561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
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WEI H, Liu Y, Xu G. POS-455 CD137L-MACROPHAGE INDUCE LYMPHATIC ENDOTHELIAL CELLS AUTOPHAGY TO PROMOTE LYMPHANGIOGENESIS IN RENAL FIBROSIS. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.483] [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
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Yang R, Xu G, Dong B, Hou H, Wang Q. A “Polymer to Polymer” Chemical Recycling of PLA Plastics by the “DE–RE Polymerization” Strategy. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02085] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Huang D, Zhang Z, Dong Z, Liu R, Huang J, Xu G. Caloric restriction and Roux-en-Y Gastric Bypass promote white adipose tissue browning in mice. J Endocrinol Invest 2022; 45:139-148. [PMID: 34232475 DOI: 10.1007/s40618-021-01626-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 06/24/2021] [Indexed: 12/12/2022]
Abstract
PURPOSE Caloric restriction (CR) and Roux-en-Y Gastric Bypass (RYGB) are considered effective means of body weight control, but the mechanism by which CR and RYGB protect against high-fat diet (HFD)-induced obesity remains elusive. The browning of white adipose tissue (WAT) is a potential approach to combat obesity. Here we assess whether browning of WAT is involved in CR- and RYGB-treatment. METHODS The average size of adipocytes was determined by histological analysis. Expression of thermogenic genes in both human subjects and mice were measured by quantitative real-time PCR and immunohistochemical staining. RESULTS The average size of adipocytes was bigger, while the expression of thermogenic genes such as uncoupling protein 1 (UCP1), nuclear factor erythroid-2 like 1 (NRF1) and PPARγ coactivator-1 α (PGC1α) were lower in the WAT of obese subjects when compared to lean controls. Both CR and RYGB promoted weight and fat loss. Increment of the average adipocytes size and down-regulation of thermogenic genes were significantly reversed by both CR and RYGB in the WAT of obese mice. CONCLUSIONS Our findings showed that CR and RYGB significantly improved high-fat diet-induced lipid accumulation by promoting the browning of WAT.
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Su J, Xu G, Dong B, Yang R, Sun H, Wang Q. Closed-loop Chemical Recycling of Poly(ε-caprolactone) by Tuning Reaction Parameters. Polym Chem 2022. [DOI: 10.1039/d2py00953f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chemical upcycling of commercial plastic materials to their starting monomers is of great significance to address the end-of-use issues of plastic materials and offers a closed-loop pathway for plastic sustainability....
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Luo X, Yi J, Wu R, Huang X, Qu Y, Chen X, Zhang Y, Liu Q, Wang J, Zhang J, Luo J, Gao L, Xu G. Response-Adapted Strategy Based on Early Response to Radiotherapy Achieves Favorable Survival With Functional Larynx in Resectable, Locally Advanced Hypopharyngeal Cancer: An Analysis of 423 Real-World Cases. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1080] [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]
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Luo X, Yi J, Wang J, Wu R, Huang X, Zhang Y, Wang K, Qu Y, Chen X, Zhang J, Luo J, GAO L, Xu G. Hypopharyngeal Carcinoma With Synchronous and Metachronous Multiple Malignancies: Clinical Characteristics and Prognosis Analysis of 673 Real World Cases. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1081] [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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Xu G, Dresser K, Bledsoe J. Immunohistochemical Characterization of H3K4Me3 in Reactive Lymph Nodes and Follicular Lymphoma. Am J Clin Pathol 2021. [DOI: 10.1093/ajcp/aqab191.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction/Objective
Genes involved in histone methylation are frequently mutated in non-Hodgkin’s lymphomas. For instance, frequent mutations in genes encoding histone methytransferases MML2 and EZH2 are present in diffuse large B cell lymphoma (DLBCL) and follicular lymphoma (FL). The aim of this study was to characterize the immunohistochemical expression of H3K4Me3 in benign/reactive lymph nodes (LNs) with comparison to follicular lymphoma (FL).
Methods/Case Report
Immunohistochemical staining with an anti-H3K4Me3 antibody was performed on FFPE whole slide section from patients with benign/reactive LNs (n=21), low grade (grade 1-2) FL (n=21). H3K4Me3 reactivity was scored for staining intensity and percentage of lymphocytes showing reactivity.
Results (if a Case Study enter NA)
The majority of the reactive LN sections (15 out of 21 cases) showed a distinct distribution of H3K4Me3 staining, with the majority of cells in the mantle zone and the interfollicular zones showing moderate-strong staining, whereas reactive germinal centers (GCs) showed significantly decreased or close to negative staining. Neoplastic follicles in all the FL cases contained positive cells with significantly stronger staining compared to that in the germinal centers in benign lymph nodes. The interfollicular zones, while diminished in FL due to expanded neoplastic follicles, showed retained H3K4Me3 staining. The difference in staining intensity between follicles and mantle/interfollicular zones became indistinct in FL.
Conclusion
H3K4Me3 expression in benign/reactive LNs is characterized by positive expression in lymphocytes in interfollicular and mantle zones and significantly decreased in GCs. However, the expression pattern is different in FL, which showed significantly increased expression in the follicles compared to that in reactive GCs. In FL, the expression in GCs is similar to that in the interfollicular and mantle zone lymphocytes. It is reported that about 90% of FL have MLL2 mutation and MLL2 is the enzyme responsible for the methylation of H3K4. So far, it is unclear whether the mutation of MLL2 in FL affects the overall methylation activity of the enzyme. In our study, there is increased methylation of H3K4 in the follicles of FL, which raises the possibility that MLL2 mutation somehow increases H3K4 methylation.
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Yang J, Xu G, Zheng J, Wang Y, Wang S, Li G, Duan W, Zhang H, Huang D. 479P Difference gene mutations among CRC patients with MSS and MSI-H types in China. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1000] [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
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Song Y, Xu G, Zhu Y, Wang T, Liu J, Wang W, Ma T, Zhang B. 1745P Prediction of BSRTC class of repeated FNA based on molecular testing result upon the first FNA. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Zou H, Cui Y, Wang X, Zhang Z, Yang J, Xu G, Okutani A, Hagiwara M, Matsuda M, Wang G, Mussardo G, Hódsági K, Kormos M, He Z, Kimura S, Yu R, Yu W, Ma J, Wu J. E_{8} Spectra of Quasi-One-Dimensional Antiferromagnet BaCo_{2}V_{2}O_{8} under Transverse Field. PHYSICAL REVIEW LETTERS 2021; 127:077201. [PMID: 34459637 DOI: 10.1103/physrevlett.127.077201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 01/08/2021] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Abstract
We report ^{51}V NMR and inelastic neutron scattering (INS) measurements on a quasi-1D antiferromagnet BaCo_{2}V_{2}O_{8} under transverse field along the [010] direction. The scaling behavior of the spin-lattice relaxation rate above the Néel temperatures unveils a 1D quantum critical point (QCP) at H_{c}^{1D}≈4.7 T, which is masked by the 3D magnetic order. With the aid of accurate analytical analysis and numerical calculations, we show that the zone center INS spectrum at H_{c}^{1D} is precisely described by the pattern of the 1D quantum Ising model in a magnetic field, a class of universality described in terms of the exceptional E_{8} Lie algebra. These excitations are nondiffusive over a certain field range when the system is away from the 1D QCP. Our results provide an unambiguous experimental realization of the massive E_{8} phase in the compound, and open a new experimental route for exploring the dynamics of quantum integrable systems as well as physics beyond integrability.
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Wu P, Tian Y, Chen G, Wang B, Gui L, Xi L, Ma X, Fang Y, Zhu T, Wang D, Meng L, Xu G, Wang S, Ma D, Zhou J. Correction: Ubiquitin B: an essential mediator of trichostatin A-induced tumor-selective killing in human cancer cells. Cell Death Differ 2021; 29:1299. [PMID: 34331026 DOI: 10.1038/s41418-021-00829-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Xu G, Jiao D, Chen L, Zhang L, Dong R, Liu T, Wang J. Vibration modes of a transportable optical cavity. OPTICS EXPRESS 2021; 29:24264-24277. [PMID: 34614675 DOI: 10.1364/oe.422182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 07/06/2021] [Indexed: 06/13/2023]
Abstract
Many factors still need to be evaluated to fully understand the physical mechanisms determining optical cavity vibration, which are crucial for designing and constructing a transportable ultra-stable laser. Herein, a detailed dynamic analysis is used to characterize the vibration modes of a transportable optical cavity. The first five resonance modes are identified in the presence of a cavity support, and the guidelines to achieve a high first-order resonance frequency are proposed; thereby, high robustness is described using a 50 mm length optical cavity. The results demonstrate that the first-order resonance of up to 681 Hz with a gross weight of 2.51 kg can be achieved using an optimization strategy for given cavity support. The theoretical results are consistent with simulation and experiment. With the optimal group, a 1.34 Hz linewidth transportable ultra-stable laser at 1550 nm is established, and a linewidth of 1.5 Hz and frequency instability of 9.5×10-15@1s are obtained after the test including 100 km actual road transportation and 34 min continuous vibration. The test condition is equivalent to ∼ 1000 km road transportation. Our method can be readily extended to other transportable optical cavities, providing a powerful tool for improving the robustness of vibration, particularly important for transportable environments.
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Wu ZB, Pan HG, Xu G, Chen GW, Li L. [Otological and hearing characteristics in children with Turner syndrome]. ZHONGHUA ER BI YAN HOU TOU JING WAI KE ZA ZHI = CHINESE JOURNAL OF OTORHINOLARYNGOLOGY HEAD AND NECK SURGERY 2021; 56:590-595. [PMID: 34256483 DOI: 10.3760/cma.j.cn115330-20210305-00111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the otological and hearing characteristics in children with Turner syndrome (TS), to determine risk factors of hearing loss, and to discuss algorithms for future surveillance. Methods: The clinical data of otolaryngology in children with TS from January 2018 to April 2020 were reviewed retrospectively. A total of 46 female children with TS, aged from 5 to 18 years were enrolled. Karyotypes included 17 cases (37.0%) of monosomy, 16 cases (34.7%) of mosaicism, and 13 cases (28.3%) of abnormal X chromosome structures. The otoscopic characteristics, audiological performance, and otologic diagnoses were evaluated. Multivariate logistic regression and Mann-Whitney U test were used for statistical analysis. Results: The most common otologic comorbidity was otitis media with effusion (OME), including 20 cases (43.5%) with 33 ears (35.9%). 14 cases (30.4%) were diagnosed with hearing loss. The regression analysis revealed that the age (OR=1.345, 95%CI: 1.072-1.760) and comorbidity of OME (OR=9.460, 95%CI: 2.065-60.350) were risk factors associated with hearing loss. In TS with OME, when compared with the mean air conduction threshold, the hearing loss of the group with pars flaccida retractions was significantly higher ((24.3±13.8) dB HL vs. (14.4±4.2) dB HL, U=59.500, P=0.008) than that of the group with none retractions. Conclusion: OME and hearing loss are common in children with TS. As age increases or suffers from OME, the risk of hearing loss increases.
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Zhu G, Wang L, Kuang J, Xu G, Zhang Y, Wang Q. High Double Bond Content of Polyisoprene Synthesis via Cationic Polymerization Synergistically Catalyzed by Tf 2NH-Ionic Liquids. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00418] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chen G, Xu Q, Fessing M, Mardaryev A, Sharov A, Xu G, Botchkarev V. 604 DNA dioxygenases TET regulate keratin gene expression and enhancer networks within lineage-specific gene loci during epidermal and hair follicle-specific keratinocyte differentiation. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Xu G. The interface between paediatrics and camhs (child and adolescent psychiatry): Mental state examination teaching for paediatric trainees. Eur Psychiatry 2021. [PMCID: PMC9471165 DOI: 10.1192/j.eurpsy.2021.599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
IntroductionDuring an out-of-hours shift, the initial assessment of a CAMHS patient is performed by the paediatric trainee, usually the paediatric SHO (senior-house-officer). During my placement as a paediatric SHO, I was aware of a gap in formalised metal state examination teaching for paediatric juniors, which would be crucial for a thorough assessment of these patients, and to better guarantee they are safely managed until further assessment.ObjectivesThe aim is to provide a short teaching session on mental state examining of the CAMHS patent to paediatric SHOs in order to improve their confidence in assessment.MethodsIn order to assess initial confidence in assessing the mental-state of a CAMHS patient, a pre-teaching questionnaire was given to the paediatric SHOs. A 30-minute teaching session on the mental state exam was then carried out and a post-teaching questionnaire was then given to the same trainees.Results
Paired sample Wilcoxons signed rank test found that training significant improved trainees’ confidence in taking a psychiatric mental state exam (p= 0.005, r = 0.628), and improved their confidence in presenting a mental state exam (p = 0.0041, r = 0.6420).Conclusions
Being able to confidently assess the mental state of a CAMHS patient in an on call shift is important for the initial assessing paediatric trainee. However this is often not taught in the paediatric curriculum and trainees have expressed some anxiety in performing this assessment overnight, before a more comprehensive assessment by a CAMHS professional. A simple teaching session may help to reduce this anxiety and improve trainees’ confidence.
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