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Chen JH, Bao YM, Li ZC, Ma HL, Wang WJ, Zheng YJ. [Immunodeficiency diseases with interstitial lung disease as major clinical manifestations: report of six cases]. ZHONGHUA ER KE ZA ZHI = CHINESE JOURNAL OF PEDIATRICS 2020; 58:228-232. [PMID: 32135596 DOI: 10.3760/cma.j.issn.0578-1310.2020.03.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To summarize the clinical features of immunodeficiency diseases with interstitial lung disease (ILD) as major clinical manifestations and to improve understanding etiology of ILD. Methods: The clinical features and clinical clues for diagnosis of six cases with immunodeficiency presented with ILD in Shenzhen Children's Hospital from January 2014 to December 2016 were retrospectively analyzed. Results: The patients' age ranged from 3 months to 5 years and 9 months, 5 cases were male. All cases had cough and tachypnea, 3 cases had lung infection and respiratory failure, 2 cases had chronic hypoxia and one had clubbing. Three cases had skin rashes; 5 cases had failure to thrive. Chest CT scan showed diffuse ground glass opacity in all the 6 cases, and 2 cases had cystic changes and one had "crazy-paving" pattern. Five patients were suspected to have surfactant dysfunction and genetic testing was performed before diagnosis of immunodeficiency, of which the results were negative. With human immunodeficiency virus antibody test or immunologic laboratory testing and/or immune genetic panel, acquired immune deficiency syndrome was confirmed in one case, hyper-IgM syndrome was confirmed in two cases and hyper-IgE syndrome in one case, Wiskott-Aldrich syndrome in one and STAT3 gain of function genetic mutation in another. All cases had clinical clues indicative of underlying immunocompromise. Conclusions: The clinical features of immunodeficiency diseases with ILD are cough, tachypnea or hypoxia, respiratory failure with infection, diffuse ground glass opacity in Chest CT imaging. With thorough medical history and immunology screening, there would be clinical clues indicative of underlying immunocompromise. Screening for immunodeficiency disease should be emphasized in the differential diagnosis of ILD, otherwise it may lead to misdiagnosis or unnecessary testing.
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Tan W, Lee G, Chen JH, Huizinga JD. Relationships Between Distention-, Butyrate- and Pellet-Induced Stimulation of Peristalsis in the Mouse Colon. Front Physiol 2020; 11:109. [PMID: 32132933 PMCID: PMC7040375 DOI: 10.3389/fphys.2020.00109] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 01/30/2020] [Indexed: 12/12/2022] Open
Abstract
Background/Aims Luminal factors such as short-chain fatty acids are increasingly recognized for playing a regulatory role in peristaltic activity. Our objective was to understand the roles of butyrate and propionate in regulating peristaltic activity in relation to distention-induced activities. Methods Butyrate and propionate were perfused intraluminally under varying intraluminal pressures in murine colons bathed in Krebs solution. We used video recording and spatiotemporal maps to examine peristalsis induced by the intrinsic rhythmic colonic motor complex (CMC) as well as pellet-induced peristaltic reflex movements. Results The CMC showed several configurations at different levels of excitation, culminating in long distance contractions (LDCs) which possess a triangular shape in murine colon spatiotemporal maps. Butyrate increased the frequency of CMCs but was a much weaker stimulus than distention and only contributed to significant changes under low distention. Propionate inhibited CMCs by decreasing either their amplitudes or frequencies, but only in low distention conditions. Butyrate did not consistently counteract propionate-induced inhibition likely due to the multiple and distinct mechanisms of action for these signaling molecules in the lumen. Pellet movement occurred through ongoing CMCs as well as pellet induced peristaltic reflex movements and butyrate augmented both types of peristaltic motor patterns to decrease the amount of time required to expel each pellet. Conclusions Butyrate is effective in promoting peristalsis, but only when the level of colonic activity is low such as under conditions of low intraluminal pressure. This suggests that it may play a significant role in patients with poor fiber intake, where there is low mechanical stimulation in the lumen.
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Wang HH, Tian SW, Yu L, Wang XX, Qi QS, Chen JH. Bidirectional IndRNN malicious webpages detection algorithm based on convolutional neural network and attention mechanism. JOURNAL OF INTELLIGENT & FUZZY SYSTEMS 2020. [DOI: 10.3233/jifs-190455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Yuan Y, Ali MK, Mathewson KJ, Sharma K, Faiyaz M, Tan W, Parsons SP, Zhang KK, Milkova N, Liu L, Ratcliffe E, Armstrong D, Schmidt LA, Chen JH, Huizinga JD. Associations Between Colonic Motor Patterns and Autonomic Nervous System Activity Assessed by High-Resolution Manometry and Concurrent Heart Rate Variability. Front Neurosci 2020; 13:1447. [PMID: 32038145 PMCID: PMC6989554 DOI: 10.3389/fnins.2019.01447] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 12/27/2019] [Indexed: 12/12/2022] Open
Abstract
Abnormal colonic motility may be associated with dysfunction of the autonomic nervous system (ANS). Our aim was to evaluate if associations between colonic motor patterns and autonomic neural activity could be demonstrated by assessing changes in heart rate variability (HRV) in healthy volunteers. A total of 145 colonic motor patterns were assessed in 11 healthy volunteers by High-Resolution Colonic Manometry (HRCM) using an 84-channel water-perfused catheter. Motor patterns were evoked by balloon distention, a meal and luminal bisacodyl. The electrocardiogram (ECG) and cardiac impedance were assessed during colonic manometry. Respiratory sinus arrhythmia (RSA) and root mean square of successive differences of beat-to-beat intervals (RMSSD) served as measures of parasympathetic reactivity while the Baevsky's Stress Index (SI) and the pre-ejection period (PEP) were used as measures of sympathetic reactivity. Taking all motor patterns into account, our data show that colonic motor patterns are accompanied by increased parasympathetic activity and decreased sympathetic activity that may occur without eliciting a significant change in heart rate. Motor Complexes (more than one motor pattern occurring in close proximity), High-Amplitude Propagating Pressure Waves followed by Simultaneous Pressure Waves (HAPW-SPWs) and HAPWs without SPWs are all associated with an increase in RSA and a decrease in SI. Hence RSA and SI may best reflect autonomic activity in the colon during these motor patterns as compared to RMSSD and PEP. SI and PEP do not measure identical sympathetic reactivity. The SPW, which is a very low amplitude pressure wave, did not significantly change the autonomic measures employed here. In conclusion, colonic motor patterns are associated with activity in the ANS which is reflected in autonomic measures of heart rate variability. These autonomic measures may serve as proxies for autonomic neural dysfunction in patients with colonic dysmotility.
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Sheng KX, Zhang P, Li JW, Cheng J, He YC, Böhlke M, Chen JH. Comparative efficacy and safety of lock solutions for the prevention of catheter-related complications including infectious and bleeding events in adult haemodialysis patients: a systematic review and network meta-analysis. Clin Microbiol Infect 2019; 26:545-552. [PMID: 31857208 DOI: 10.1016/j.cmi.2019.12.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 11/28/2019] [Accepted: 12/08/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND Central venous catheters are used extensively as temporary or permanent vascular access for haemodialysis patients. Catheter-related bloodstream infections are the main complication of central venous catheters and increase morbidity and mortality in haemodialysis patients. OBJECTIVES The aim was to assess the most appropriate lock solution for central venous catheters to prevent catheter-related bloodstream infections and other complications. DATA SOURCES Medline, Embase and the Cochrane Central Register of Controlled Trials from the date of their inception to August 2018 were used as data sources. The reference lists of eligible studies and relevant reviews were also checked. STUDY ELIGIBILITY CRITERIA AND PARTICIPANTS Randomized controlled trials (RCTs) comparing different lock solutions for the prevention of central venous catheter-related infectious and bleeding complications for adult dialysis patients were included. INTERVENTIONS Interventions were lock solutions for haemodialysis catheters. METHODS The primary outcomes were catheter-related bloodstream infections and bleeding events. The secondary outcomes were catheter malfunction, exit-site infection, and all-cause mortality. We estimated summary risk ratios (RRs) using pairwise and network meta-analysis. We assessed the risk of bias of individual studies with the Cochrane risk of bias tool. RESULTS Forty-nine trials (7020 patients) were included for this study. Compared with heparin 5000 U/mL, antibiotic locks (antibiotics with trisodium citrate (TSC), ethylenediamine tetraacetic acid (EDTA), heparin 5000 U/mL, low-dose heparin or urokinase) and ethanol locks were more effective in preventing catheter-related bloodstream infections. Antimicrobial agents plus low-dose heparin (500-2500 U/mL), TSC and low-dose heparin locks had lower risk of bleeding events than heparin 5000 U/mL. None of the lock solutions reduced rates of catheter malfunction and all-cause mortality compared with heparin 5000 U/mL. In summary, antibiotics plus low-dose heparin was ranked as the best lock solution. The overall results were not materially changed in sensitivity analyses. CONCLUSIONS Taking into account both efficacy and safety, antibiotics plus low-dose heparin (500-2500 U/mL) may be the preferred lock solution.
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Yang LT, Li HB, Yue Q, Ma H, Kang KJ, Li YJ, Wong HT, Agartioglu M, An HP, Chang JP, Chen JH, Chen YH, Cheng JP, Deng Z, Du Q, Gong H, Guo QJ, He L, Hu JW, Hu QD, Huang HX, Jia LP, Jiang H, Li H, Li JM, Li J, Li X, Li XQ, Li YL, Liao B, Lin FK, Lin ST, Liu SK, Liu YD, Liu YY, Liu ZZ, Ma JL, Mao YC, Pan H, Ren J, Ruan XC, Sharma V, She Z, Shen MB, Singh L, Singh MK, Sun TX, Tang CJ, Tang WY, Tian Y, Wang GF, Wang JM, Wang L, Wang Q, Wang Y, Wang YX, Wu SY, Wu YC, Xing HY, Xu Y, Xue T, Yi N, Yu CX, Yu HJ, Yue JF, Zeng XH, Zeng M, Zeng Z, Zhang FS, Zhang YH, Zhao MG, Zhou JF, Zhou ZY, Zhu JJ, Zhu ZH. Search for Light Weakly-Interacting-Massive-Particle Dark Matter by Annual Modulation Analysis with a Point-Contact Germanium Detector at the China Jinping Underground Laboratory. PHYSICAL REVIEW LETTERS 2019; 123:221301. [PMID: 31868422 DOI: 10.1103/physrevlett.123.221301] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Indexed: 06/10/2023]
Abstract
We present results on light weakly interacting massive particle (WIMP) searches with annual modulation (AM) analysis on data from a 1-kg mass p-type point-contact germanium detector of the CDEX-1B experiment at the China Jinping Underground Laboratory. Datasets with a total live time of 3.2 yr within a 4.2-yr span are analyzed with analysis threshold of 250 eVee. Limits on WIMP-nucleus (χ-N) spin-independent cross sections as function of WIMP mass (m_{χ}) at 90% confidence level (C.L.) are derived using the dark matter halo model. Within the context of the standard halo model, the 90% C.L. allowed regions implied by the DAMA/LIBRA and CoGeNT AM-based analysis are excluded at >99.99% and 98% C.L., respectively. These results correspond to the best sensitivity at m_{χ}<6 GeV/c^{2} among WIMP AM measurements to date.
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Pang GF, Cao YZ, Fan CL, Zhang JJ, Li XM, MacNeil JD, Bo HB, Chen JH, Chu XG, Fang XM, Guggisberg D, Gupta RC, Hudecova T, Jia X, Kennedy G, Lin AQ, Lin F, Lin HD, Ling YC, Ma ZD, Nan Z, One Y, Qin Y, Quiroga MA, Sharman M, Song WB, Soraci AL, Tang FB, Tekel J, Tian M, Uscinas R, Wang FC, Xu H, Zhou L, Zhou W, Zhou XP, Zhu GN. Determination of Clopidol Residues in Chicken Tissues by Liquid Chromatography: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/86.4.685] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Eighteen laboratories participated in a collaborative study on the determination of clopidol residues in chicken muscle tissues by liquid chromatography. Of these, results from 16 laboratories which rigorously followed the method were subjected to statistical analysis. The method performance was assessed by all participants using 14 samples of chicken muscle fortified at concentrations ranging from 0.1 to 5.0 mg/kg. In addition, 9 participants each reported results for 6 clopidol-incurred samples in chicken muscle. Test portions were extracted with acetonitrile, and the extracts were purified with alumina and anion exchange resin solid-phase extraction cartridges in sequence. Clopidol was separated by reversed-phase liquid chromatography and quantified at 270 nm. Average recoveries ranged from 81.8 to 85.4%, reproducibility relative standard deviation (RSDR) ranged from 11.9 to 22.6%, and repeatability relative standard deviation (RSDr) ranged from 9.9 to 15.1%. For clopidol-incurred samples at concentrations of 0.100–0.687 mg/kg, the mean determination value range was 0.099–0.659 mg/kg; RSDR was 12.6–19.8%, RSDr was 3.1–8.5%; and HORRAT values were 0.7–1.1. The accuracy and precision of the method are in conformity with the requirements specified by AOAC INTERNATIONAL. The method was adopted Official First Action in April 2003.
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Liu ZZ, Yue Q, Yang LT, Kang KJ, Li YJ, Wong HT, Agartioglu M, An HP, Chang JP, Chen JH, Chen YH, Cheng JP, Deng Z, Du Q, Gong H, Guo XY, Guo QJ, He L, He SM, Hu JW, Hu QD, Huang HX, Jia LP, Jiang H, Li HB, Li H, Li JM, Li J, Li X, Li XQ, Li YL, Liao B, Lin FK, Lin ST, Liu SK, Liu YD, Liu YY, Ma H, Ma JL, Mao YC, Ning JH, Pan H, Qi NC, Ren J, Ruan XC, Sharma V, She Z, Singh L, Singh MK, Sun TX, Tang CJ, Tang WY, Tian Y, Wang GF, Wang L, Wang Q, Wang Y, Wang YX, Wu SY, Wu YC, Xing HY, Xu Y, Xue T, Yi N, Yu CX, Yu HJ, Yue JF, Zeng M, Zeng Z, Zhang FS, Zhao MG, Zhou JF, Zhou ZY, Zhu JJ. Constraints on Spin-Independent Nucleus Scattering with sub-GeV Weakly Interacting Massive Particle Dark Matter from the CDEX-1B Experiment at the China Jinping Underground Laboratory. PHYSICAL REVIEW LETTERS 2019; 123:161301. [PMID: 31702340 DOI: 10.1103/physrevlett.123.161301] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Indexed: 06/10/2023]
Abstract
We report results on the searches of weakly interacting massive particles (WIMPs) with sub-GeV masses (m_{χ}) via WIMP-nucleus spin-independent scattering with Migdal effect incorporated. Analysis on time-integrated (TI) and annual modulation (AM) effects on CDEX-1B data are performed, with 737.1 kg day exposure and 160 eVee threshold for TI analysis, and 1107.5 kg day exposure and 250 eVee threshold for AM analysis. The sensitive windows in m_{χ} are expanded by an order of magnitude to lower DM masses with Migdal effect incorporated. New limits on σ_{χN}^{SI} at 90% confidence level are derived as 2×10^{-32}∼7×10^{-35} cm^{2} for TI analysis at m_{χ}∼50-180 MeV/c^{2}, and 3×10^{-32}∼9×10^{-38} cm^{2} for AM analysis at m_{χ}∼75 MeV/c^{2}-3.0 GeV/c^{2}.
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Adam J, Adamczyk L, Adams JR, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Anderson DM, Aoyama R, Aparin A, Aschenauer EC, Ashraf MU, Atetalla FG, Attri A, Averichev GS, Bairathi V, Barish K, Bassill AJ, Behera A, Bellwied R, Bhasin A, Bhati AK, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Brandenburg JD, Brandin AV, Bryslawskyj J, Bunzarov I, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Cebra D, Chakaberia I, Chaloupka P, Chan BK, Chang FH, Chang Z, Chankova-Bunzarova N, Chatterjee A, Chattopadhyay S, Chen JH, Chen X, Cheng J, Cherney M, Christie W, Contin G, Crawford HJ, Csanád M, Das S, Dedovich TG, Deppner IM, Derevschikov AA, Didenko L, Dilks C, Dong X, Drachenberg JL, Dunlop JC, Edmonds T, Elsey N, Engelage J, Eppley G, Esha R, Esumi S, Evdokimov O, Ewigleben J, Eyser O, Fatemi R, Fazio S, Federic P, Fedorisin J, Feng Y, Filip P, Finch E, Fisyak Y, Fulek L, Gagliardi CA, Galatyuk T, Geurts F, Gibson A, Gopal K, Greiner L, Grosnick D, Gupta A, Guryn W, Hamad AI, Hamed A, Harris JW, He L, Heppelmann S, Heppelmann S, Herrmann N, Holub L, Hong Y, Horvat S, Huang B, Huang HZ, Huang SL, Huang T, Huang X, Humanic TJ, Huo P, Igo G, Jacobs WW, Jena C, Jentsch A, Ji Y, Jia J, Jiang K, Jowzaee S, Ju X, Judd EG, Kabana S, Kagamaster S, Kalinkin D, Kang K, Kapukchyan D, Kauder K, Ke HW, Keane D, Kechechyan A, Kelsey M, Khyzhniak YV, Kikoła DP, Kim C, Kinghorn TA, Kisel I, Kisiel A, Kocan M, Kochenda L, Kosarzewski LK, Kramarik L, Kravtsov P, Krueger K, Kulathunga Mudiyanselage N, Kumar L, Kunnawalkam Elayavalli R, Kwasizur JH, Lacey R, Landgraf JM, Lauret J, Lebedev A, Lednicky R, Lee JH, Li C, Li W, Li W, Li X, Li Y, Liang Y, Licenik R, Lin T, Lipiec A, Lisa MA, Liu F, Liu H, Liu P, Liu P, Liu T, Liu X, Liu Y, Liu Z, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo S, Luo X, Ma GL, Ma L, Ma R, Ma YG, Magdy N, Majka R, Mallick D, Margetis S, Markert C, Matis HS, Matonoha O, Mazer JA, Meehan K, Mei JC, Minaev NG, Mioduszewski S, Mishra D, Mohanty B, Mondal MM, Mooney I, Moravcova Z, Morozov DA, Nasim M, Nayak K, Nelson JM, Nemes DB, Nie M, Nigmatkulov G, Niida T, Nogach LV, Nonaka T, Odyniec G, Ogawa A, Oh S, Okorokov VA, Page BS, Pak R, Panebratsev Y, Pawlik B, Pawlowska D, Pei H, Perkins C, Pintér RL, Pluta J, Porter J, Posik M, Pruthi NK, Przybycien M, Putschke J, Quintero A, Radhakrishnan SK, Ramachandran S, Ray RL, Reed R, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Salur S, Sandweiss J, Schambach J, Schmidke WB, Schmitz N, Schweid BR, Seck F, Seger J, Sergeeva M, Seto R, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Shen F, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Siejka S, Sikora R, Simko M, Singh J, Singha S, Smirnov D, Smirnov N, Solyst W, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stefaniak M, Stewart DJ, Strikhanov M, Stringfellow B, Suaide AAP, Sugiura T, Sumbera M, Summa B, Sun XM, Sun Y, Sun Y, Surrow B, Svirida DN, Szelezniak MA, Szymanski P, Tang AH, Tang Z, Taranenko A, Tarnowsky T, Tawfik A, Thomas JH, Timmins AR, Tlusty D, Tokarev M, Tomkiel CA, Trentalange S, Tribble RE, Tribedy P, Tripathy SK, Tsai OD, Tu B, Tu Z, Ullrich T, Underwood DG, Upsal I, Van Buren G, Vanek J, Vasiliev AN, Vassiliev I, Videbæk F, Vokal S, Voloshin SA, Wang F, Wang G, Wang P, Wang Y, Wang Y, Webb JC, Wen L, Westfall GD, Wieman H, Wissink SW, Witt R, Wu Y, Xiao ZG, Xie G, Xie W, Xu H, Xu N, Xu QH, Xu YF, Xu Z, Yang C, Yang Q, Yang S, Yang Y, Yang Z, Ye Z, Ye Z, Yi L, Yip K, Zbroszczyk H, Zha W, Zhang D, Zhang L, Zhang S, Zhang S, Zhang XP, Zhang Y, Zhang Z, Zhao J, Zhong C, Zhou C, Zhu X, Zhu Z, Zurek M, Zyzak M. First Observation of the Directed Flow of D^{0} and D^{0}[over ¯] in Au+Au Collisions at sqrt[s_{NN}]=200 GeV. PHYSICAL REVIEW LETTERS 2019; 123:162301. [PMID: 31702332 DOI: 10.1103/physrevlett.123.162301] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 08/09/2019] [Indexed: 06/10/2023]
Abstract
We report the first measurement of rapidity-odd directed flow (v_{1}) for D^{0} and D^{0}[over ¯] mesons at midrapidity (|y|<0.8) in Au+Au collisions at sqrt[s_{NN}]=200 GeV using the STAR detector at the Relativistic Heavy Ion Collider. In 10-80% Au+Au collisions, the slope of the v_{1} rapidity dependence (dv_{1}/dy), averaged over D^{0} and D^{0}[over ¯] mesons, is -0.080±0.017(stat)±0.016(syst) for transverse momentum p_{T} above 1.5 GeV/c. The absolute value of D^{0} meson dv_{1}/dy is about 25 times larger than that for charged kaons, with 3.4σ significance. These data give a unique insight into the initial tilt of the produced matter, and offer constraints on the geometric and transport parameters of the hot QCD medium created in relativistic heavy-ion collisions.
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Shokrollahi M, Chen JH, Huizinga JD. Intraluminal prucalopride increases propulsive motor activities via luminal 5-HT 4 receptors in the rabbit colon. Neurogastroenterol Motil 2019; 31:e13598. [PMID: 31012538 DOI: 10.1111/nmo.13598] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/13/2019] [Accepted: 03/28/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Activating luminal 5-HT4 receptors results in the release of 5-HT from enterochromaffin cells into the lamina propria to modulate colonic motility. Our aim was to evaluate characteristics of colonic motor patterns involved in the prokinetic effects of intraluminal prucalopride in the rabbit colon. METHODS Colonic motor patterns were studied ex vivo using simultaneous spatiotemporal diameter mapping and pressure sensing. KEY RESULTS Intraluminal prucalopride and intraluminal exogenous 5-HT strongly evoked or enhanced the colonic motor complex at all levels of excitation beginning with generation of clusters of fast propagating contractions (FPCs), then development of long-distance contractions (LDCs) within the clusters, and finally forceful LDCs as the highest level of excitation. Intraluminal prucalopride and intraluminal exogenous 5-HT stimulated propulsive motor activity in a dose-dependent and antagonist-sensitive manner by increasing the contraction amplitude, intraluminal pressure, frequency, velocity, and degree of propagation of the colonic motor complex. CONCLUSIONS AND INFERENCES Activating mucosal 5-HT4 receptors via intraluminal prucalopride or 5-HT increases propulsive motor activity in a graded manner; that is, depending on starting conditions, amplitudes or frequencies of an activity may increase or a new pattern may be initiated. Our data support further studies into delivering 5-HT4 receptor agonists via colon-targeted drug delivery systems and studies into the role of luminal 5-HT as an essential requirement for normal colon motor pattern generation.
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Adam J, Adamczyk L, Adams JR, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Anderson DM, Aoyama R, Aparin A, Arkhipkin D, Aschenauer EC, Ashraf MU, Atetalla F, Attri A, Averichev GS, Bairathi V, Barish K, Bassill AJ, Behera A, Bellwied R, Bhasin A, Bhati AK, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Brandenburg JD, Brandin AV, Bryslawskyj J, Bunzarov I, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Cebra D, Chakaberia I, Chaloupka P, Chan BK, Chang FH, Chang Z, Chankova-Bunzarova N, Chatterjee A, Chattopadhyay S, Chen JH, Chen X, Cheng J, Cherney M, Christie W, Crawford HJ, Csanád M, Das S, Dedovich TG, Deppner IM, Derevschikov AA, Didenko L, Dilks C, Dong X, Drachenberg JL, Dunlop JC, Edmonds T, Elsey N, Engelage J, Eppley G, Esha R, Esumi S, Evdokimov O, Ewigleben J, Eyser O, Fatemi R, Fazio S, Federic P, Fedorisin J, Feng Y, Filip P, Finch E, Fisyak Y, Fulek L, Gagliardi CA, Galatyuk T, Geurts F, Gibson A, Gopal K, Grosnick D, Gupta A, Guryn W, Hamad AI, Hamed A, Harris JW, He L, Heppelmann S, Heppelmann S, Herrmann N, Holub L, Hong Y, Horvat S, Huang B, Huang HZ, Huang SL, Huang T, Huang X, Humanic TJ, Huo P, Igo G, Jacobs WW, Jena C, Jentsch A, Ji Y, Jia J, Jiang K, Jowzaee S, Ju X, Judd EG, Kabana S, Kagamaster S, Kalinkin D, Kang K, Kapukchyan D, Kauder K, Ke HW, Keane D, Kechechyan A, Kelsey M, Khyzhniak YV, Kikoła DP, Kim C, Kinghorn TA, Kisel I, Kisiel A, Kocan M, Kochenda L, Kosarzewski LK, Kramarik L, Kravtsov P, Krueger K, Kulathunga Mudiyanselage N, Kumar L, Kunnawalkam Elayavalli R, Kwasizur JH, Lacey R, Landgraf JM, Lauret J, Lebedev A, Lednicky R, Lee JH, Li C, Li W, Li W, Li X, Li Y, Liang Y, Licenik R, Lin T, Lipiec A, Lisa MA, Liu F, Liu H, Liu P, Liu P, Liu T, Liu X, Liu Y, Liu Z, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo S, Luo X, Ma GL, Ma L, Ma R, Ma YG, Magdy Abdelwahab Abdelrahman N, Majka R, Mallick D, Margetis S, Markert C, Matis HS, Matonoha O, Mazer JA, Meehan K, Mei JC, Minaev NG, Mioduszewski S, Mishra D, Mohanty B, Mondal MM, Mooney I, Moravcova Z, Morozov DA, Nasim M, Nayak K, Nelson JM, Nemes DB, Nie M, Nigmatkulov G, Niida T, Nogach LV, Nonaka T, Odyniec G, Ogawa A, Oh K, Oh S, Okorokov VA, Page BS, Pak R, Panebratsev Y, Pawlik B, Pawlowska D, Pei H, Perkins C, Pintér RL, Pluta J, Porter J, Posik M, Pruthi NK, Przybycien M, Putschke J, Quintero A, Radhakrishnan SK, Ramachandran S, Ray RL, Reed R, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Salur S, Sandweiss J, Schambach J, Schmidke WB, Schmitz N, Schweid BR, Seck F, Seger J, Sergeeva M, Seto R, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Shen F, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Siejka S, Sikora R, Simko M, Singh J, Singha S, Smirnov D, Smirnov N, Solyst W, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stefaniak M, Stewart DJ, Strikhanov M, Stringfellow B, Suaide AAP, Sugiura T, Sumbera M, Summa B, Sun XM, Sun Y, Sun Y, Surrow B, Svirida DN, Szymanski P, Tang AH, Tang Z, Taranenko A, Tarnowsky T, Thomas JH, Timmins AR, Tlusty D, Todoroki T, Tokarev M, Tomkiel CA, Trentalange S, Tribble RE, Tribedy P, Tripathy SK, Tsai OD, Tu B, Tu Z, Ullrich T, Underwood DG, Upsal I, Van Buren G, Vanek J, Vasiliev AN, Vassiliev I, Videbæk F, Vokal S, Voloshin SA, Wang F, Wang G, Wang P, Wang Y, Wang Y, Webb JC, Wen L, Westfall GD, Wieman H, Wissink SW, Witt R, Wu Y, Xiao ZG, Xie G, Xie W, Xu H, Xu N, Xu QH, Xu YF, Xu Z, Yang C, Yang Q, Yang S, Yang Y, Yang Z, Ye Z, Ye Z, Yi L, Yip K, Yoo IK, Zbroszczyk H, Zha W, Zhang D, Zhang L, Zhang S, Zhang S, Zhang XP, Zhang Y, Zhang Z, Zhao J, Zhong C, Zhou C, Zhu X, Zhu Z, Zurek M, Zyzak M. Polarization of Λ (Λ[over ¯]) Hyperons along the Beam Direction in Au+Au Collisions at sqrt[s_{NN}]=200 GeV. PHYSICAL REVIEW LETTERS 2019; 123:132301. [PMID: 31697517 DOI: 10.1103/physrevlett.123.132301] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/21/2019] [Indexed: 06/10/2023]
Abstract
The Λ (Λ[over ¯]) hyperon polarization along the beam direction has been measured in Au+Au collisions at sqrt[s_{NN}]=200 GeV, for the first time in heavy-ion collisions. The polarization dependence on the hyperons' emission angle relative to the elliptic flow plane exhibits a second harmonic sine modulation, indicating a quadrupole pattern of the vorticity component along the beam direction, expected due to elliptic flow. The polarization is found to increase in more peripheral collisions, and shows no strong transverse momentum (p_{T}) dependence at p_{T} greater than 1 GeV/c. The magnitude of the signal is about 5 times smaller than those predicted by hydrodynamic and multiphase transport models; the observed phase of the emission angle dependence is also opposite to these model predictions. In contrast, the kinematic vorticity calculations in the blast-wave model tuned to reproduce particle spectra, elliptic flow, and the azimuthal dependence of the Gaussian source radii measured with the Hanbury Brown-Twiss intensity interferometry technique reproduce well the modulation phase measured in the data and capture the centrality and transverse momentum dependence of the polarization signal.
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Adam J, Adamczyk L, Adams JR, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Anderson DM, Aoyama R, Aparin A, Arkhipkin D, Aschenauer EC, Ashraf MU, Atetalla F, Attri A, Averichev GS, Bairathi V, Barish K, Bassill AJ, Behera A, Bellwied R, Bhasin A, Bhati AK, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Brandenburg JD, Brandin AV, Bryslawskyj J, Bunzarov I, Butterworth J, Caines H, Sánchez MCDLB, Cebra D, Chakaberia I, Chaloupka P, Chan BK, Chang FH, Chang Z, Chankova-Bunzarova N, Chatterjee A, Chattopadhyay S, Chen JH, Chen X, Cheng J, Cherney M, Christie W, Crawford HJ, Csanad M, Das S, Dedovich TG, Deppner IM, Derevschikov AA, Didenko L, Dilks C, Dong X, Drachenberg JL, Dunlop JC, Edmonds T, Elsey N, Engelage J, Eppley G, Esha R, Esumi S, Evdokimov O, Ewigleben J, Eyser O, Fatemi R, Fazio S, Federic P, Fedorisin J, Feng Y, Filip P, Finch E, Fisyak Y, Fulek L, Gagliardi CA, Galatyuk T, Geurts F, Gibson A, Grosnick D, Gupta A, Guryn W, Hamad AI, Hamed A, Harris JW, He L, Heppelmann S, Heppelmann S, Herrmann N, Holub L, Hong Y, Horvat S, Huang B, Huang HZ, Huang SL, Huang T, Huang X, Humanic TJ, Huo P, Igo G, Jacobs WW, Jentsch A, Jia J, Jiang K, Jowzaee S, Ju X, Judd EG, Kabana S, Kagamaster S, Kalinkin D, Kang K, Kapukchyan D, Kauder K, Ke HW, Keane D, Kechechyan A, Kelsey M, Kikoła DP, Kim C, Kinghorn TA, Kisel I, Kisiel A, Kocan M, Kochenda L, Kosarzewski LK, Kramarik L, Kravtsov P, Krueger K, Mudiyanselage NK, Kumar L, Elayavalli RK, Kwasizur JH, Lacey R, Landgraf JM, Lauret J, Lebedev A, Lednicky R, Lee JH, Li C, Li W, Li W, Li X, Li Y, Liang Y, Licenik R, Lin T, Lipiec A, Lisa MA, Liu F, Liu H, Liu P, Liu P, Liu X, Liu Y, Liu Z, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo S, Luo X, Ma GL, Ma L, Ma R, Ma YG, Magdy N, Majka R, Mallick D, Margetis S, Markert C, Matis HS, Matonoha O, Mazer JA, Meehan K, Mei JC, Minaev NG, Mioduszewski S, Mishra D, Mohanty B, Mondal MM, Mooney I, Moravcova Z, Morozov DA, Nasim M, Nayak K, Nelson JM, Nemes DB, Nie M, Nigmatkulov G, Niida T, Nogach LV, Nonaka T, Odyniec G, Ogawa A, Oh K, Oh S, Okorokov VA, Page BS, Pak R, Panebratsev Y, Pawlik B, Pei H, Perkins C, Pinter RL, Pluta J, Porter J, Posik M, Pruthi NK, Przybycien M, Putschke J, Quintero A, Radhakrishnan SK, Ramachandran S, Ray RL, Reed R, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Salur S, Sandweiss J, Schambach J, Schmidke WB, Schmitz N, Schweid BR, Seck F, Seger J, Sergeeva M, Seto R, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Shen F, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Siejka S, Sikora R, Simko M, Singha S, Smirnov D, Smirnov N, Solyst W, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stewart DJ, Strikhanov M, Stringfellow B, Suaide AAP, Sugiura T, Sumbera M, Summa B, Sun XM, Sun Y, Sun Y, Surrow B, Svirida DN, Szymanski P, Tang AH, Tang Z, Taranenko A, Tarnowsky T, Thomas JH, Timmins AR, Todoroki T, Tokarev M, Tomkiel CA, Trentalange S, Tribble RE, Tribedy P, Tripathy SK, Tsai OD, Tu B, Ullrich T, Underwood DG, Upsal I, Van Buren G, Vanek J, Vasiliev AN, Vassiliev I, Videbæk F, Vokal S, Voloshin SA, Wang F, Wang G, Wang P, Wang Y, Wang Y, Webb JC, Wen L, Westfall GD, Wieman H, Wissink SW, Witt R, Wu Y, Xiao ZG, Xie G, Xie W, Xu H, Xu N, Xu QH, Xu YF, Xu Z, Yang C, Yang Q, Yang S, Yang Y, Ye Z, Ye Z, Yi L, Yip K, Yoo IK, Zbroszczyk H, Zha W, Zhang D, Zhang L, Zhang S, Zhang S, Zhang XP, Zhang Y, Zhang Z, Zhao J, Zhong C, Zhou C, Zhu X, Zhu Z, Zurek MK, Zyzak M. Observation of Excess J/ψ Yield at Very Low Transverse Momenta in Au+Au Collisions at sqrt[s_{NN}]=200 GeV and U+U Collisions at sqrt[s_{NN}]=193 GeV. PHYSICAL REVIEW LETTERS 2019; 123:132302. [PMID: 31697545 DOI: 10.1103/physrevlett.123.132302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 07/21/2019] [Indexed: 06/10/2023]
Abstract
We report on the first measurements of J/ψ production at very low transverse momentum (p_{T}<0.2 GeV/c) in hadronic Au+Au collisions at sqrt[s_{NN}]=200 GeV and U+U collisions at sqrt[s_{NN}]=193 GeV. Remarkably, the inferred nuclear modification factor of J/ψ at midrapidity in Au+Au (U+U) collisions reaches about 24 (52) for p_{T}<0.05 GeV/c in the 60%-80% collision centrality class. This noteworthy enhancement cannot be explained by hadronic production accompanied by cold and hot medium effects. In addition, the dN/dt distribution of J/ψ for the very low p_{T} range is presented for the first time. The distribution is consistent with that expected from the Au nucleus and shows a hint of interference. Comparison of the measurements to theoretical calculations of coherent production shows that the excess yield can be described reasonably well and reveals a partial disruption of coherent production in semicentral collisions, perhaps due to the violent hadronic interactions. Incorporating theoretical calculations, the results strongly suggest that the dramatic enhancement of J/ψ yield observed at extremely low p_{T} originates from coherent photon-nucleus interactions. In particular, coherently produced J/ψ's in violent hadronic collisions may provide a novel probe of the quark-gluon plasma.
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Zhou P, Chen JH, Huang T, Tao ZZ. [Research progress of congenital preauricular fistula]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2019; 33:474-477. [PMID: 31163564 DOI: 10.13201/j.issn.1001-1781.2019.05.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Indexed: 11/12/2022]
Abstract
Congenital preauricular fistula can be sporadic or genetic. When inherited, it exhibits incomplete autosomal dominant genetic patterns. It can occur alone or with other diseases such as branchio-oto-renal syndrome. According to the position of fistula opening, congenital ear fistula can be divided into four categories: congenital preauricular fistula, congenital posterior ear fistula, congenital auricular fistula and congenital external auditory canal fistula. Congenital auricle fistula can be subdivided into congenital auricular fistula, congenital teal fistula, congenital earlobe fistula and so on. The diagnosis of preauricular fistula should be based on its clinical manifestation, and the diagnosis and treatment of special type of preauricular fistula should be emphasized. The treatment methods of congenital preauricular fistula include medicine, incision and surgical excision. According to the clinical practice of us and other scholars, surgical treatment is recommended in the period of acute infection, and the recurrence rate is not increased. The operation method of preauricular fistula, the application of microscope, dye tracer, probe and general anesthesia, and the clear surgical visualization are all helpful to reduce the recurrence rate.
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Tao KX, Wan WZ, Chen JH, Yang WC, Cai M, Shuai XM, Cai KL, Gao JB, Wang GB, Zhang P. [Laparoscopic versus open surgery for gastric gastrointestinal stromal tumors in unfavorable location: a propensity score-matching analysis]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 2019; 57:585-590. [PMID: 31422627 DOI: 10.3760/cma.j.issn.0529-5815.2019.08.005] [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 efficacy and feasibility of laparoscopic resection for gastric gastrointestinal stromal tumor (GIST) in unfavorable location by comparing with open surgery. Methods: Clinicopathological and follow-up data of 176 patients with gastric GIST in unfavorable location admitted at Union Hospital, Tongji Medical College, Huazhong University of Science and Technology from January 2005 to December 2017 were analyzed retrospectively. There were 94 males and 82 females, aging of (57.4±12.7) years (range: 20-90 years). Of the 176 patients, 64 underwent laparoscopic surgery (laparoscopic group) and 112 underwent open surgery (open group). One-to-one propensity score matching (PSM) was performed to balance the covariance between laparoscopic group and open surgery group. Before PSM, the differences between the two group in tumor size and modified National Institutes of Health risk classification were significant. After PSM, there were 63 pairs (63 cases in laparoscopic group and 63 cases in open group) and the baseline characteristics were comparable between the two groups(P>0.05). The difference of short-term outcome between the two groups were compared using t test, χ(2) test or Wilcoxon rank-sum test. The survival curve was established by Kaplan-Meier method and the Log-rank test was used to compare the survival of the two groups. Results: The operation time of laparoscopic group was shorter ((141.6±100.6) minutes vs. (100.4±67.7) minutes, t=2.681, P=0.008), the hospitalization cost was higher ((5.2±0.7) ten thousand yuan vs. (4.2±0.8) ten thousand yuan, t=7.357, P=0.000) than open group. The time to first flatus ((49.1±8.2) hours vs. (71.0±4.6) hours, t=-18.482, P=0.000) and preoperative hospital stay ((10.3±6.0) days vs. (14.8±7.6) days, t=-3.717, P=0.000) was shorter in laparoscopic group. With a median follow-up time of 44 months (range: 10 to 154 months), the 1-, 3-, 5-year relapse-free survival rates in the laparoscopic group and open group were 98.3%, 92.1%, 92.1% and 100%, 86.3%, 83.2%, respectively (χ(2)=0.696, P=0.404). The 1-, 3-, 5-year overall survival rates in the laparoscopic group and open group were 96.6%, 94.7%, 94.7% and 100%, 91.1%, 81.4%, respectively (χ(2)=0.366, P=0.545). Conclusions: In experienced medical centers, laparoscopic resection is safe and feasible for GIST in unfavorable location. Compared to open surgery, laparoscopic resection achieves a faster postoperative recovery and a similar long-term prognosis.
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90
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Shen RH, Ming WQ, Chen JH, He YT, Mi SB, Ma CS. Feasible atomic-resolution electron tomography for general crystal surfaces by quantitative reconstruction from a high-resolution image. Ultramicroscopy 2019; 205:27-38. [PMID: 31234100 DOI: 10.1016/j.ultramic.2019.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 06/03/2019] [Accepted: 06/09/2019] [Indexed: 11/19/2022]
Abstract
Whether or not the 3-dimensional surface morphologies of a crystal sample can be reconstructed at atomic-scale from a single 2-dimensional image becomes an interesting issue in high-resolution transmission electron microscopy, after the work by Jia et al. [1]. Here we propose an improved and self-validated algorithm to enhance such an electron tomography method and to make it applicable to more general crystal surfaces even with thin amorphous layers. Our study shows that a resolution in the beam (z) direction and a confidence level have to be defined and estimated after performing tomographic reconstruction in order to evaluate the quality and the reliability of its result. Applying the proposed procedure to the Si[110] image to recover the surface morphologies of a silicon crystal with amorphous contamination, the obtained results show that an atomic-resolution of 0.384 nm in the z-direction and a high confidence level of 95% are achieved for imaging the Si-surface structures, quantitatively described by tomographic parameters, i.e., the height (defocus) and the thickness (atom number) of Si-atomic columns.
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Zhang Z, Zheng YM, Jiang LL, Ji H, Chen GP, Luo P, Pan JJ, Tian XL, Wei LL, Huo D, Miao ZP, Zou XN, Chen JH, Liao QH, Chang ZR. [Review on the etiology and complications of hand, foot and mouth disease, using data from the national sentinel surveillance program, in China, 2015-2016]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2019; 40:627-632. [PMID: 31238609 DOI: 10.3760/cma.j.issn.0254-6450.2019.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Objective: To understand the characteristics relating to the etiology and complications of hand, foot and mouth disease (HFMD) based on data from the pilot National Sentinel Surveillance (NSS) program so as to explore the feasibility, advantages and disadvantages of the NSS. Methods: Data were extracted from the NSS system, conducted in 11 provinces of China from November 2015 to October 2016. Characteristics regarding the etiology, complications of HFMD and factors related to the positive rates of HFMD specimens were analyzed under the logistic regression method by SPSS 20.0 software. Results: A total of 4 783 specimens were collected, including 3 390 from mild, 1 390 from severe and 3 from death cases. The overall positive rate was 81.43% (3 895/4 783). Other enteroviruses (non EV71/Cox A16 enteroviruses) appeared the major serotype (52.68%, 1 482/2 813) for mild infection of the disease while EV71 was for the severe cases (65.31%, 706/1 081). The serotype spectrum revealed by the pilot NSS was almost identical with the existing surveillance system. Other enteroviruses tended to infect younger children (χ(2)=130.17, P<0.001) than EV71 and Cox A16, in China. The multivariate logistic regression results showed that higher positive rate was associated with specimens which were collected from males, at children' hospitals, in peak seasons, timely and in stools. The positive rates presented downwarding trends with the extension of the onset-sampling interval (χ(2)=14.47, P<0.001 in stool specimen; χ(2)=31.99, P<0.001 in throat swab; χ(2)=24.26, P<0.001 in anal swab). Aseptic meningitis, non-brainstem encephalitis and brainstem encephalitis appeared the top three complications of both EV71-associated and other enteroviruses-associated severe HFMD cases. Conclusions: Factors as gender, season/place/timeliness of specimen collection, and types of hospital all appeared independently influenced the positive rates. NSS seemed feasible to be used as an alternative or supplement tool to the existing surveillance program in China.
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Adam J, Adamczyk L, Adams JR, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Anderson DM, Aoyama R, Aparin A, Arkhipkin D, Aschenauer EC, Ashraf MU, Atetalla F, Attri A, Averichev GS, Bai X, Bairathi V, Barish K, Bassill AJ, Behera A, Bellwied R, Bhasin A, Bhati AK, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Brandenburg JD, Brandin AV, Brown D, Bryslawskyj J, Bunzarov I, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Cebra D, Chakaberia I, Chaloupka P, Chan BK, Chang FH, Chang Z, Chankova-Bunzarova N, Chatterjee A, Chattopadhyay S, Chen JH, Chen X, Chen X, Cheng J, Cherney M, Christie W, Contin G, Crawford HJ, Csanad M, Das S, Dedovich TG, Deppner IM, Derevschikov AA, Didenko L, Dilks C, Dong X, Drachenberg JL, Dunlop JC, Efimov LG, Elsey N, Engelage J, Eppley G, Esha R, Esumi S, Evdokimov O, Ewigleben J, Eyser O, Fatemi R, Fazio S, Federic P, Federicova P, Fedorisin J, Filip P, Finch E, Fisyak Y, Flores CE, Fulek L, Gagliardi CA, Galatyuk T, Geurts F, Gibson A, Grosnick D, Gunarathne DS, Guo Y, Gupta A, Guryn W, Hamad AI, Hamed A, Harlenderova A, Harris JW, He L, Heppelmann S, Heppelmann S, Herrmann N, Hirsch A, Holub L, Hong Y, Horvat S, Huang B, Huang HZ, Huang SL, Huang T, Huang X, Humanic TJ, Huo P, Igo G, Jacobs WW, Jentsch A, Jia J, Jiang K, Jowzaee S, Ju X, Judd EG, Kabana S, Kagamaster S, Kalinkin D, Kang K, Kapukchyan D, Kauder K, Ke HW, Keane D, Kechechyan A, Kikoła DP, Kim C, Kinghorn TA, Kisel I, Kisiel A, Kochenda L, Kosarzewski LK, Kraishan AF, Kramarik L, Krauth L, Kravtsov P, Krueger K, Kulathunga N, Kumar L, Kunnawalkam Elayavalli R, Kvapil J, Kwasizur JH, Lacey R, Landgraf JM, Lauret J, Lebedev A, Lednicky R, Lee JH, Li C, Li W, Li X, Li Y, Liang Y, Lidrych J, Lin T, Lipiec A, Lisa MA, Liu F, Liu H, Liu P, Liu P, Liu Y, Liu Z, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo S, Luo X, Ma GL, Ma L, Ma R, Ma YG, Magdy N, Majka R, Mallick D, Margetis S, Markert C, Matis HS, Matonoha O, Mazer JA, Meehan K, Mei JC, Minaev NG, Mioduszewski S, Mishra D, Mohanty B, Mondal MM, Mooney I, Morozov DA, Nasim M, Negrete JD, Nelson JM, Nemes DB, Nie M, Nigmatkulov G, Niida T, Nogach LV, Nonaka T, Odyniec G, Ogawa A, Oh K, Oh S, Okorokov VA, Olvitt D, Page BS, Pak R, Panebratsev Y, Pawlik B, Pei H, Perkins C, Pinter RL, Pluta J, Porter J, Posik M, Pruthi NK, Przybycien M, Putschke J, Quintero A, Radhakrishnan SK, Ramachandran S, Ray RL, Reed R, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Salur S, Sandweiss J, Schambach J, Schmah AM, Schmidke WB, Schmitz N, Schweid BR, Seck F, Seger J, Sergeeva M, Seto R, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Shen F, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Siejka S, Sikora R, Simko M, Singh J, Singha S, Smirnov D, Smirnov N, Solyst W, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stewart DJ, Strikhanov M, Stringfellow B, Suaide AAP, Sugiura T, Sumbera M, Summa B, Sun XM, Sun X, Sun Y, Surrow B, Svirida DN, Szymanski P, Tang AH, Tang Z, Taranenko A, Tarnowsky T, Thomas JH, Timmins AR, Tlusty D, Todoroki T, Tokarev M, Tomkiel CA, Trentalange S, Tribble RE, Tribedy P, Tripathy SK, Tsai OD, Tu B, Ullrich T, Underwood DG, Upsal I, Van Buren G, Vanek J, Vasiliev AN, Vassiliev I, Videbæk F, Vokal S, Voloshin SA, Vossen A, Wang F, Wang G, Wang P, Wang Y, Wang Y, Webb JC, Wen L, Westfall GD, Wieman H, Wissink SW, Witt R, Wu Y, Xiao ZG, Xie G, Xie W, Xu J, Xu N, Xu QH, Xu YF, Xu Z, Yang C, Yang Q, Yang S, Yang Y, Ye Z, Ye Z, Yi L, Yip K, Yoo IK, Yu N, Zbroszczyk H, Zha W, Zhang J, Zhang J, Zhang L, Zhang S, Zhang S, Zhang XP, Zhang Y, Zhang Z, Zhao J, Zhong C, Zhou C, Zhu X, Zhu Z, Zyzak M. Azimuthal Harmonics in Small and Large Collision Systems at RHIC Top Energies. PHYSICAL REVIEW LETTERS 2019; 122:172301. [PMID: 31107064 DOI: 10.1103/physrevlett.122.172301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/26/2019] [Indexed: 06/09/2023]
Abstract
The first (v_{1}^{fluc}), second (v_{2}), and third (v_{3}) harmonic coefficients of the azimuthal particle distribution at midrapidity are extracted for charged hadrons and studied as a function of transverse momentum (p_{T}) and mean charged particle multiplicity density ⟨N_{ch}⟩ in U+U (sqrt[s_{NN}]=193 GeV), Au+Au, Cu+Au, Cu+Cu, d+Au, and p+Au collisions at sqrt[s_{NN}]=200 GeV with the STAR detector. For the same ⟨N_{ch}⟩, the v_{1}^{fluc} and v_{3} coefficients are observed to be independent of the collision system, while v_{2} exhibits such a scaling only when normalized by the initial-state eccentricity (ϵ_{2}). The data also show that ln(v_{2}/ϵ_{2}) scales linearly with ⟨N_{ch}⟩^{-1/3}. These measurements provide insight into initial-geometry fluctuations and the role of viscous hydrodynamic attenuation on v_{n} from small to large collision systems.
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Hanman A, Chen JH, Parsons SP, Huizinga JD. Noradrenaline inhibits neurogenic propulsive motor patterns but not neurogenic segmenting haustral progression in the rabbit colon. Neurogastroenterol Motil 2019; 31:e13567. [PMID: 30761706 DOI: 10.1111/nmo.13567] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 01/12/2019] [Accepted: 01/13/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Excessive sympathetic inhibition may be a cause of colon motor dysfunction. Our aim was to better understand the mechanisms of sympathetic inhibition on colonic motor patterns using the rabbit colon, hypothesizing that noradrenaline selectively inhibits propulsive motor patterns. METHODS Changes in motor patterns of the rabbit colon were studied ex vivo using noradrenaline and adrenoceptor antagonists and analyzed using spatiotemporal diameter maps. KEY RESULTS Noradrenaline abolished propulsive contractions: it abolished the long-distance contractions (LDCs) from a baseline frequency of 0.8 ± 0.3 and the clusters of fast propagating contractions (FPCs) at a frequency of 14.4 ± 2.8 cpm. Both motor patterns recovered after addition of the α2 -adrenoceptor antagonist yohimbine to a frequency of 0.5 ± 0.2 and 9.9 ± 3.3 cpm, respectively. The β-adrenoceptor antagonist propranolol did not prevent the loss of propulsive motor patterns with noradrenaline. Noradrenaline did not inhibit haustral boundary contractions and increased the frequency of the myogenic ripples from 8.3 ± 1.4 to 10.5 ± 1.3 cpm which was not affected by yohimbine, propranolol nor the α1 -adrenoceptor blocker prazosin. CONCLUSIONS AND INFERENCES Noradrenergic inhibition of propulsive motor patterns is mediated by the α2 -adrenoceptor to inhibit the neurogenic LDCs and the neurogenic clustering of FPCs. The neurogenic haustral boundary contractions are not affected, suggesting that α2- receptors are on selective neural circuits. The excitatory effect of noradrenaline on ripples may be due to the activation of adrenoceptors on interstitial cells of Cajal, but action on α1- receptors was excluded. No role for the β-adrenoceptor was found.
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Zhang YZ, Sui XL, Xu YP, Gu FJ, Zhang AS, Chen JH. NLRP3 inflammasome and lipid metabolism analysis based on UPLC-Q-TOF-MS in gouty nephropathy. Int J Mol Med 2019; 44:172-184. [PMID: 31059009 PMCID: PMC6559305 DOI: 10.3892/ijmm.2019.4176] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Accepted: 04/17/2019] [Indexed: 12/15/2022] Open
Abstract
To determine the differences in plasma metabolism between healthy patients and patients with hyperuricaemia and gouty nephropathy, the present study identified differentially expressed metabolites associated with gouty nephropathy. Furthermore, the NLRP3 inflammasome signalling pathway in gouty nephropathy was explored, and the mechanism of hyperuricaemia-induced renal damage. Adult male patients examined between July 2016 and June 2017 were selected as the patient cohort for the present study from the Affiliated Bao'an Hospital of Shenzhen, Southern Medical University (Shenzhen, China). These patients were divided into three groups of 30 patients each: Control, hyperuricaemia and gouty nephropathy groups. The expression levels of NLRP3, ASC and caspase-1 mRNA and protein were detected in peripheral blood mononuclear cells, and the plasma levels of IL-1β and IL-18. Ultra-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry was used to determine differential levels of metabolites between patients from different groups, in order to identify potential biomarkers. The expression of the NLRP3 inflammasome in peripheral blood mononuclear cells, and the levels of IL-1β and IL-18 in the plasma were increased in the gouty nephropathy group compared with the control and hyperuricaemia groups. In addition, 46 metabolites were identified as potential plasma metabolic biomarkers that were able to distinguish gouty nephropathy from hyperuricaemia. The majority of these metabolites were involved in lipid metabolism, in particular the activity of phospholipase A2 and β-oxidation. These data indicated that lipid metabolism and the NLRP3 inflammasome serve a pivotal role in gouty nephropathy. In addition, the results suggested that lipids may mediate the progression of gouty nephropathy through the activity of phospholipase A2, β-oxidation and activation of the NLRP3 inflammasome.
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Ma K, Wang XY, Chen JH. [Laparoscopic versus open surgery for simultaneous resection of synchronous colorectal liver metastases]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 2019; 56:516-521. [PMID: 30032533 DOI: 10.3760/cma.j.issn.0529-5815.2018.07.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Objective: To compare the short-term outcomes and long-term outcomes between open and laparoscopic approaches for simultaneous resection of primary colorectal cancer and synchronous liver metastases. Methods: Patients underwent simultaneous resection of primary colorectal cancer and synchronous liver metastases at Department of General Surgery, Huashan Hospital, Fudan University between January 2014 and October 2017 were included.The totally laparoscopic surgery patients were matched 1∶1 based on propensity score to the open surgery patients.Continuous and categorical variables were compared using non-parametric Mann-Whitney U test and Fisher exact test.Survival curves of overall survival(OS) and disease-free-survival(DFS) were plotted by Kaplan-Meier method, and compared according to Log-rank test. Results: A total of 41 patients were included. After propensity score matching, 12 patients fell into each of the two groups(totally laparoscopic approach group and open approach group). Baseline characteristics were similar between the two groups.There was no difference regarding the to the proportion of major liver resection.Statistically significant difference was observed in term of intra-operative blood loss (250 ml vs.450 ml, Z=-2.005, P=0.045) and fluid infusion(2 430 ml vs. 3 150 ml)(Z=-2.488, P=0.012). Post-operative stay and overall morbidity were similar between the two groups.However, adverse event worse than Clavien-Dindo Ⅱ morbidity did not occur in the laparoscopic approach group.No postoperative mortality happened in either group within 30 days of surgery. Regarding to long-term outcomes, OS and DFS were similar between the two approaches. Conclusion: Laparoscopic approaches for simultaneous resection of primary colorectal cancer and synchronous liver metastases may be associated with reduced blood loss, without adversely affecting long-term outcomes in selected patients.
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Chen DJ, Chen JH. [Focus on the occurrence, diagnosis and individualized treatment of tumors after renal transplantation]. ZHONGHUA YI XUE ZA ZHI 2019; 99:725-727. [PMID: 30884622 DOI: 10.3760/cma.j.issn.0376-2491.2019.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
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Wei LC, Gong GY, Chen JH, Hou PY, Li QY, Zheng ZY, Su YM, Zheng Y, Luo CZ, Zhang K, Xu TF, Ye YH, Lan YJ, Wei XM. [Application of lower abdominal aorta balloon occlusion technique by ultrasound guiding during caesarean section in patients with pernicious placenta previa]. ZHONGHUA YI XUE ZA ZHI 2018; 98:930-934. [PMID: 29665668 DOI: 10.3760/cma.j.issn.0376-2491.2018.12.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To discuss the feasibility, effect and safety of lower abdominal aorta balloon occlusion technique by ultrasound guiding during caesarean section in patients with pernicious placenta previa. Methods: The clinical data of 40 patients with pernicious placenta previa complicated with placenta accreta from January 2015 to August 2017 in Liuzhou workers hospital were analyzed retrospectively. The study group included 20 cases, which were operated in the way of cesarean section combined lower abdominal aorta balloon occlusion technique by ultrasound guiding, while the control group also included 20 cases, which were operated in the way of the conventional cesarean section without balloon occlusion technique. The bleeding amount, blood transfusion volume, operative total time, hysterectomy and complications of the two groups were compared. Results: The bleeding amount and blood transfusion volume in study group were(850±100)ml and (400±50)ml, which were lower than that of the control group[(2 500±230)ml and (1 500±100)ml], the difference was statistically significant(t=35.624, 16.523, all P<0.05). In addition, the hysterectomy rate in study group was 5%, which was lower than that in the control group(30%), the difference was statistically significant(χ2=8.672, P<0.05). And the total time of operation was (2.0±0.5)h in the study group, which was shorter than that in the control group[(3.5±0.4)h]. The difference was statistically significant(t=11.362, P<0.05). No postoperative complications took place in the study group.The blood pressure, heart rate and blood oxygen fluctuated significantly, and the postoperative renal function was significantly reduced in the control group. Conclusions: The lower abdominal aorta balloon occlusion technique by ultrasound guiding during a caesarean section in patients with pernicious placenta previa can effectively control the bleeding during operation, and preserve reproductive function to the utmost degree.Therefore, the technique is safe, feasible, convenient and cheaper, and worthy of being widely applied in clinic.
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Alford J, Anson CD, Aparin A, Arkhipkin D, Aschenauer EC, Averichev GS, Banerjee A, Beavis DR, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Borowski W, Bouchet J, Brandin AV, Brovko SG, Bültmann S, Bunzarov I, Burton TP, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chang Z, Chattopadhyay S, Chen HF, Chen JH, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chwastowski J, Codrington MJM, Contin G, Cramer JG, Crawford HJ, Cui X, Das S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, Derradi de Souza R, Dhamija S, di Ruzza B, Didenko L, Dilks C, Ding F, Djawotho P, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Engle KS, Eppley G, Eun L, Evdokimov O, Eyser O, Fatemi R, Fazio S, Fedorisin J, Filip P, Finch E, Fisyak Y, Flores CE, Gagliardi CA, Gangadharan DR, Garand D, Geurts F, Gibson A, Girard M, Gliske S, Greiner L, Grosnick D, Gunarathne DS, Guo Y, Gupta A, Gupta S, Guryn W, Haag B, Hamed A, Han LX, Haque R, Harris JW, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang B, Huang HZ, Huang X, Huck P, Humanic TJ, Igo G, Jacobs WW, Jang H, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Kesich A, Khan ZH, Kikola DP, Kisel I, Kisiel A, Koetke DD, Kollegger T, Konzer J, Koralt I, Kotchenda L, Kraishan AF, Kravtsov P, Krueger K, Kulakov I, Kumar L, Kycia RA, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, LeVine MJ, Li C, Li W, Li X, Li X, Li Y, Li ZM, Lisa MA, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Ma GL, Ma YG, Madagodagettige Don DMMD, Mahapatra DP, Majka R, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Minaev NG, Mioduszewski S, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nelson JM, Nigmatkulov G, Nogach LV, Noh SY, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Olvitt DL, Pachr M, Page BS, Pal SK, Pan YX, Pandit Y, Panebratsev Y, Pawlak T, Pawlik B, Pei H, Perkins C, Peryt W, Pile P, Planinic M, Pluta J, Poljak N, Porter J, Poskanzer AM, Pruthi NK, Przybycien M, Pujahari PR, Putschke J, Qiu H, Quintero A, Ramachandran S, Raniwala R, Raniwala S, Ray RL, Riley CK, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ross JF, Roy A, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma B, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Singaraju RN, Skoby MJ, Smirnov D, Smirnov N, Solanki D, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Sumbera M, Sun X, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szelezniak MA, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thomas JH, Timmins AR, Tlusty D, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Turnau J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vandenbroucke M, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Vertesi R, Videbæk F, Viyogi YP, Vokal S, Vossen A, Wada M, Wang F, Wang G, Wang H, Wang JS, Wang XL, Wang Y, Wang Y, Webb G, Webb JC, Westfall GD, Wieman H, Wissink SW, Witt R, Wu YF, Xiao Z, Xie W, Xin K, Xu H, Xu J, Xu N, Xu QH, Xu Y, Xu Z, Yan W, Yang C, Yang Y, Yang Y, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Yu N, Zawisza Y, Zbroszczyk H, Zha W, Zhang JB, Zhang JL, Zhang S, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y, Zyzak M. Erratum: Observation of D^{0} Meson Nuclear Modifications in Au+Au Collisions at sqrt[s_{NN}]=200 GeV [Phys. Rev. Lett. 113, 142301 (2014)]. PHYSICAL REVIEW LETTERS 2018; 121:229901. [PMID: 30547623 DOI: 10.1103/physrevlett.121.229901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Indexed: 06/09/2023]
Abstract
This corrects the article DOI: 10.1103/PhysRevLett.113.142301.
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Liu L, Hu W, Li WJ, Wang SY, Lu D, Tian XJ, Mao YQ, Liu J, Chen JH. Heavy-ion mutagenesis significantly enhances enduracidin production by Streptomyces fungicidicus. Eng Life Sci 2018; 19:112-120. [PMID: 32624993 DOI: 10.1002/elsc.201800109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 10/09/2018] [Accepted: 11/16/2018] [Indexed: 11/11/2022] Open
Abstract
To improve fermentative production of enduracidin, heavy-ion beams generated by the Heavy Ion Research Facility in Lanzhou (HIRFL), China, were employed for the first time to generate mutations in Streptomyces fungicidicus. Initial screening detected 44 positive mutants with larger inhibition zone, which were subsequently tested based on flask fermentation. Finally, 20 mutants showed 20% increase in enduracidin production, when compared with the original strain. Among them, enduracidin production by the three mutants (M13, M30, and M34) was significantly higher than that by the original strain. In particular, mutant M30 exhibited highest enduracidin production, which was 114% higher than that obtained with the original strain. Following culture optimization, the maximal enduracidin yield obtained by M30 reached 918.5 mg/L in 10 days, which was 34% higher than that noted in the control.
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Hu W, Li WJ, Yang HQ, Chen JH. Current strategies and future prospects for enhancing microbial production of citric acid. Appl Microbiol Biotechnol 2018; 103:201-209. [PMID: 30421107 DOI: 10.1007/s00253-018-9491-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 10/27/2018] [Indexed: 10/27/2022]
Abstract
Aspergillus niger and Yarrowia lipolytica are highly important in citric acid (CA) production. To further minimize the cost of CA bio-production using A. niger and Y. lipolytica, some strategies (e.g., metabolic engineering, efficient mutagenesis, and optimal fermentation strategies) were developed to enhance CA production and low-cost carbon sources were also utilized to decrease CA bio-production cost. In this review, we summarize the recent significant progresses in CA bio-production, including metabolic engineering, efficient mutagenesis and screening methods, optimal fermentation strategies, and use of low-cost carbon sources, and future prospects in this field are also discussed, which could help in the development of CA production industry.
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