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205篇 您的检索式:作者名="Zhi Long"
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1Multimodality treatment in hepatocellular carcinoma patients with tumor thrombi in portal vein显示文摘AIM To compare the therapeutic effect andsignificances of multimodality treatment forhepatocellular carcinoma (HCC) with tumorthrombi in portal vein (PVTT).METHODS HCC patients (n = 147) with tumortrombi in the main portal vein or the first branchof portal vein were divided into four groups bythe several therapeutic methods. There wereconservative treatment group in 18 out ofpatients (group A); and hepatic artery ligation(HAL) and/or hepatic artery infusion (HAl)group in 18 patients (group B), in whompostoberative chemoembolization was doneperiodically; group of removal of HCC with PVTTin 79 (group C) and group of transcatheterhepatic arterial chemoembolization (TACE) orHAl and/or portal vein infusion (PVI) afteroperation in 32 (group D).RESULTS The median survival period was 12months in our series and the 1-, 3-, and 5-yearsurvival rates were 44.3%, 24.5% and 15.2%,respectively. The median survival times were 2,5, 12 and 16 months in group A, B, C and D,respectively. The 1-, 3- and 5-year survival rateswere 5.6%, 0% and 0% in group A; 22.2%,5.6% and 0% in group B; 53.9%, 26.9% and16.6% in group C; 79.3%, 38.9% and 26.8% ingroup D, respectively. Significant differenceappeared in the survival rates among the groups(P<0.05).CONCLUSION Hepatic resection with removalof tumor thrombi and HCC should increase thecurative effects and be encouraged for theprolongation of life span and quality of life forHCC patients with PVTT, whereas the besttherapeutic method for HCC with PVTT is withregional hepatic chemotherapy orchemoemblization after hepatic resection withremoval of tumor thrombi.Jia Fan Zhi Quan Wu Zhao You Tang Jian Zhou Shuang Jian Qiu Zeng Chen Ma Xin Da Zhou Sheng Long Ye Liver Cancer Institute, Zhongshan Hospital, Fudan University Medical Center (Former Shanghai University), 136 Yixueyuan Road, Shanghai 200032, China 2001World Journal of Gastroenterology2001,7,1:80
2Fecal microbiota transplantation cured epilepsy in a case with Crohn's disease: The first report显示文摘Fecal microbiota transplantation(FMT)is a promising strategy that involves reconstruction of gut microbiota.Recently,it has been considered as a treatment of Crohn’s disease(CD)and certain neurological diseases.Here,to the best of our knowledge,we report the first case that used FMT to achieve remission of intestinal and neurological symptoms in a girl with CD and a 17-year history of epilepsy.During the 20 mo of follow-up,FMT has proved its efficacy in preventing relapse of seizures after withdrawing the antiepileptic drugs.Furthermore,this finding highlights the role of microbiota-gut-brain axis and inspires a novel treatment for epilepsy through remodeling gut microbiota.Zhi He Bo-Ta Cui Ting Zhang Pan Li Chu-Yan Long Guo-Zhong Ji Fa-Ming Zhang 2017World Journal of Gastroenterology2017,23,19:37
3A Survey: Several Technologies of Non-Orthogonal Transmission for 5G显示文摘One key advantage of 4G OFDM system is the relatively simple receiver implementation due to the orthogonal resource allocation.However,from sum-capacity and spectral efficiency points of view,orthogonal systems are never the achieving schemes.With the rapid development of mobile communication systems,a novel concept of non-orthogonal transmission for 5G mobile communications has attracted researches all around the world.In this trend,many new multiple access schemes and waveform modulation technologies were proposed.In this paper,some promising ones of them were discussed which include Non-orthogonal Multiple Access(NOMA),Sparse Code Multiple Access(SCMA),Multi-user Shared Access(MUSA),Pattern Division Multiple Access(PDMA)and some main new waveforms including Filter-bank based Multicarrier(FBMC),Universal Filtered Multi-Carrier(UFMC),Generalized Frequency Division Multiplexing(GFDM).By analyzing and comparing features of these technologies,a research direction of guiding on future 5G multiple access and waveform are given.TAO Yunzheng LIU Long LIU Shang ZHANG Zhi 2015China Communications2015,12,10:31
4Effectiveness of Different Waist Circumference Cut-off Values in Predicting Metabolic Syndrome Prevalence and Risk Factors in Adults in China显示文摘Objective To study the effectiveness of waist circumference cut-off values in predicting the prevalence of metabolic syndrome(MetS) and risk factors in adults in China. Methods A cross-sectional survey was condcuted in 14 provinces(autonomous region, municipality) in China. A total of 47 325 adults aged ≥20 years were selected by multistage stratified sampling, and questionnaire survey and physical and clinical examination were conducted among them. MetS was defined according to the International Diabetes Federation(IDF) criteria and modified IDF criteria.Results The age-standardized prevalence of MetS was 24.2%(22.1% in men and 25.8% in women) and 19.5%(22.1% in men and 18.0% in women) according to the IDF criteria and modified IDF criteria respectively. The age-standardized prevalence of pre-MetS was 8.1%(8.6% in men and 7.8% in women) according to the modified IDF criteria. The prevalence of MetS was higher in urban residents than rural residents and in northern China residents than in southern China residents. The prevalence of central obesity was about 30% in both men and women according to the ethnicity-specific cut-off values of waist circumference for central obesity(90 cm for men and 85 cm for women). Multivariate regression analysis revealed no significant difference in risk factors between the two MetS definitions. Conclusion Using both the modified IDF criteria and ethnicity-specific cut-off values of waist circumference can provide more useful information about the prevalence of MetS in China.ZHOU Hai Cheng LAI Ya Xin SHAN Zhong Yan JIA Wei Ping YANG Wen Ying LU Ju Ming WENG Jian Ping JI Li Nong LIU Jie TIAN Hao Ming JI Qiu He ZHU Da Long CHEN Li GUO Xiao Hui ZHAO Zhi Gang Li Qiang ZHOU Zhi Guang GE Jia Pu SHAN Guang Liang 2014Biomedical and Environmental Sciences2014,27,5:17
5Laparoscopic hepaticoplasty using gallbladder as a subcutaneous tunnel for hepatolithiasis显示文摘AIM:To investigate the feasibility,efficacy and safety of laparoscopic hepaticoplasty using gallbladder as subcutaneous tunnel and sphincter-of-Oddi preservation for hepatolithiasis.METHODS:From January 2010 to July 2013,six patients with hepatolithiasis were treated at our institution.All the patients underwent laparoscopic surgery.The procedures included common hepatic duct exploration,stone clearance by fiberoptic choledochoscopy,hilar bile duct hepaticoplasty with preservation of the sphincter of Oddi,anastomosis between the hilar bile duct and neck of the gallbladder,and establishment of a subcutaneous tunnel with the gallbladder.Two patients underwent left lateral hepatectomy simultaneously.Clinical data including operation time,intraoperative blood loss,operative morbidity,hospital mortality,stone clearance,and recurrence rate were analyzed.RESULTS:All patients successfully completed laparoscopic surgery.The mean length of hospital stay was4.5±0.9 d(range:3-6 d).The mean blood loss of the hepatectomy was 450 mL(range:200-700 mL),and the blood loss of the other four was 137±151 mL (range:50-400 mL).The mean operative time was 318±68 min(range:236-450 min).The operative morbidity and hospital mortality were zero.The immediate stone clearance rate was 100%.All patients were followed up for an average of 17 mo(range:7-36 mo).One of the six patients had abdominal mass with pain,and subcutaneous tunnel cholangiography showed severe gallbladder-biliary anastomotic stricture at 4 mo postoperatively.There was no stone recurrence and no cholangitis during follow-up.CONCLUSION:Laparoscopic hepaticoplasty using gallbladder with a subcutaneous tunnel and preserving the sphincter of Oddi is feasible,safe and effective for hepatholithiasis.Long Cui Zhi Xu Xiao-Feng Ling Li-Xin Wang Chun-Sheng Hou Gang Wang Xiao-Si Zhou 2014World Journal of Gastroenterology2014,20,12:13
6The Impacts of Mosquito Density and Meteorological Factors on Dengue Fever Epidemics in Guangzhou, China, 2006-2014: a Time-series Analysis显示文摘Objective To explore the associations between the monthly number of dengue fever(DF) cases and possible risk factors in Guangzhou, a subtropical city of China. Methods The monthly number of DF cases, Breteau Index(BI), and meteorological measures during 2006-2014 recorded in Guangzhou, China, were assessed. A negative binomial regression model was used to evaluate the relationships between BI, meteorological factors, and the monthly number of DF cases. Results A total of 39,697 DF cases were detected in Guangzhou during the study period. DF incidence presented an obvious seasonal pattern, with most cases occurring from June to November. The current month's BI, average temperature(Tave), previous month's minimum temperature(Tmin), and Tave were positively associated with DF incidence. A threshold of 18.25 °C was found in the relationship between the current month's Tmin and DF incidence. Conclusion Mosquito density, Tave, and Tmin play a critical role in DF transmission in Guangzhou. These findings could be useful in the development of a DF early warning system and assist in effective control and prevention strategies in the DF epidemic.SHEN Ji Chuan LUO Lei LI Li JING Qin Long OU Chun Quan YANG Zhi Cong CHEN Xiao Guang 2015Biomedical and Environmental Sciences2015,28,5:12
7Identification of a Newly Isolated Getah Virus in the China-Laos Border,China显示文摘In this study, we isolated a virus strain(YN12031) from specimens of Armigeres subalbatus collected in the China-Laos border. BHK-21 cells infected with YN12031 exhibited an evident cytopathic effect(CPE) 32 h post-infection. The virus particles were spherical, 70 nm in diameter, and enveloped; they also featured surface fibers. Molecular genetic analysis revealed that YN12031 was closely related to alpha viruses such as Chikungunya virus and Sindbis virus, and located in the same clade as MM2021, the prototype of Getahvirus(GETV) isolated in Malaysia in 1955. Phylogenetic analysis of the E2 and capsid genes further revealed that YN12031 was located in the same clade as the Russian isolate LEIV/16275/Mag. Analysis of the homology of nucleotides and amino acids in the coding area and E2 gene demonstrated that the YN12031 isolated from the China-Laos border(tropical region) was related closest to the LEIV/16275/Mag isolate obtained in Russia(North frigid zone area) among other isolates studied. These results suggest that GETV can adapt to different geographical environments to propagate and evolve. Thus, strengthening the detection and monitoring of GETV and its related diseases is very crucial.LI Yuan Yuan FU Shi Hong GUO Xiao Fang LEI Wen Wen LI Xiao Long SONG Jing Dong CAO Lei GAO Xiao Yan LYU Zhi HE Ying WANG Huan Yu REN Xiao Jie ZHOU Hong Ning WANG Gui Qin LIANG Guo Dong 2017Biomedical and Environmental Sciences2017,30,3:12
8DNA storage:research landscape and future prospects显示文摘The global demand for data storage is currently outpacing the world’s storage capabilities.DNA,the carrier of natural genetic information,offers a stable,resource-and energy-efficient and sustainable data storage solution.In this review,we summarize the fundamental theory,research history,and technical challenges of DNA storage.From a quantitative perspective,we evaluate the prospect of DNA,and organic polymers in general,as a novel class of data storage medium.Yiming Dong Fajia Sun Zhi Ping Qi Ouyang Long Qian 2020National Science Review2020,7,6:12
9Ginsenoside-Rg_6, a Novel Triterpenoid Saponin from the Stem-Leaves of Panax ginseng C. A. Mey.显示文摘A novel dammarane-type triterpene oligoglycoside, named ginsenoside-Rg6 3, was isolated from the stem-leaves of Panax ginseng C. A. Mey., together with two known ones, 20(S)-ginsenoside-Rg2 1 and 20(R)-ginsenoside-Rg2 2. On the basis of chemical and physicochemical evidence , the structure of ginsenoside-Rg6 have been elucidated as 6-O-(-L-rhamnosyl-(1?2)-(-D-glucopyranosyl-dammarane-(E)-20(22), 24-diene-3(, 6(, 12(-triol.Xiu Wei YANG, Long Yun LI, Jian Ming TIAN, Zhi Wei ZHANG, Jin Mei YE, Wei Fang Gu (National Research Laboratory of Natural & Biomimetic Drugs, Peking University, Beijing 100083) (Academy of Chinese Traditional Medicine and Materia Medica of Jilin Provinc 2000Chinese Chemical Letters2000,11,10:12
10The effect of immediate surgical bipolar plasmakinetic transurethral resection of the prostate on prostatic hyperplasia with acute urinary retention显示文摘在现在的学习,我们评估了立即的外科的双极的 plasmakinetic 的安全和功效为有有尖锐尿保留(AUR ) 的良性的 prostatic 增生(BPH ) 的病人的前列腺(PK-TURP ) 的经尿道的切除术。我们进行了收到了 PK-TURP 的 BPH 病人的临床的数据的回顾的分析。1126 个 BPH 病人的一个总数被划分成 AUR (n = 348 ) 并且 non-AUR 组(n = 778 ) 。在尿道的导管被移开以后,在 AUR 组的尿白人血房间(白血球) 计数显著地与 non-AUR 组相比增加了(P < 0.01 ) 。然而,在国际前列腺症状分数,痛苦的泌尿,和最大的尿流动率没有重要差别。AUR 组的住院的持续时间比 non-AUR 组的长(P < 0.001 ) 。在 AUR 的病人组织的 87.1% 的一个总数(303/348 ) 并且 84.1%(654/778 ) 在 non-AUR 组的病人手术后的后续访问完成了所有。在在在外科以后的 3 个月以内的 AUR 组的尿道感染的发生在 non-AUR 组比那显著地高(P < 0.01 ) 。在 AUR 组的暂时的尿不能自制的发生没展出重要差别。在在外科以后的 3-12 月期间,在在二个组之间的主要复杂并发症没有重要差别。Multivariate 回归分析出现了那年龄, postvoid 剩余,最大的尿流动率,糖尿病,和高血压,然而并非 AUR 的存在,是 IPSS post-PK-TURP 的独立预言者。在结论, AUR 伴随的病人上的立即的 PK-TURP 外科安全、有效。Le-Ye He Yi-Chuan Zhang Jing-Liang He Liu-Xun Li Yong Wang Jin Tang Jing Tan Kuangbaio Zhong Yu-Xin Tang Zhi Long 2016Asian Journal of Andrology2016,18,1:12
11Two New Steroidal Glycosides from Liriope muscari显示文摘Two new steroidal glycosides named Lm-4 (1) and Lm-5 (2) were isolated from the tubers of Liriope muscari. Their structures were elucidated by 1D and 2D NMR, ESI/MALDI- MS techniques, and chemical methods.Zhi Hong CHENG Tao WU Yin Long GUO Bo Yang YU Luo Shan XU 2006Chinese Chemical Letters2006,17,1:8
12Preparation and Characterization of Microencapsulated Hexadecane Used for Thermal Energy Storage显示文摘Polyurea microcapsules about 2.5μm in diameter containing phase change material for thermal energy storage application were synthesized and characterized by interfacial polycondensation method with toluene-2,4-diisocyanate and ethylenediamine as monomers in an emulsion system. Hexadecane was used as a phase change material and OP, which is nonionic surfactant, and used as an emulsifier. The chemical structure and thermal behavior of the microcapsules were investigated by FTIR and thermal analysis respectively. The results show encapsulated hexadecane has a good potential as a solar energy storage material.Guang Long ZOU Zhi Cheng TAN Xiao Zheng LAN Li Xian SUN Tao ZHANG 2004Chinese Chemical Letters2004,15,6:7
13Two new lignans from Dipteronia dyeriana显示文摘新 sesquilignan, 7 鈥 ? 8 鈥 ? didehydroherpetotriol (1 ) ,和新 lignan glycoside,(+)-isolariciresinol-9 鈥 ?O- 伪 -l-rhamnopyranosyl-(1 鈫 ? 6 )- 尾 -d-glucopyranoside (2 ) ,从 Dipteronia dyeriana 的分支被孤立。他们的结构被分光镜的方法和化学证据阐明。与 39 渭 m ol/L 的 IC50 价值对人的白血球过多症 K562 房间加重 1 项拥有的禁止的活动。Rong Guo Min Luo Chun Lin Long Ma Lin Li Zhi Qin Ouyang Yi Ping Zhou Yue Hu Wang Xing Yu Li Ya Na Shi 2008Chinese Chemical Letters2008,19,10:7
14Bare sclera resection followed by mitomycin C and/or autograft limbus conjunctiva in the surgery for pterygium:a Meta-analysis显示文摘AIM: To evaluate the recurrence and complications after bare sclera resection(BSR) combined with mitomycin C(MMC) treatment and/or autograft limbus conjunctiva(ALC) in the surgery for pterygium.·METHODS: Meta-analysis was used to evaluate the differences in patient outcomes between BSR of pterygium with or without MMC and/or ALC. All included studies were randomized trials of patients with pterygium who received BSR followed by MMC and/or ALC in the surgery. The recurrence of pterygium and other complications resulting from different treatments were extracted for analysis.·RESULTS: Thirteen studies met the inclusion criteria.The recurrence of pterygium with intraoperative(IO) MMC was higher than that with ALC(OR=2.38,95% confidence interval 1.45-3.91, I2=29%). Postoperative MMC resulted in an incidence of recurrence similar to that of ALC(OR=0.66, 95% confidence interval 0.30-1.42, I2=0%), and IO MMC treatment in combination with ALC produced similar patient outcomes to ALC alone(OR =0.41, 95%confidence interval 0.16-1.01, I2=16%). Other complications such as punctate epitheliopathy, scleral thinning and ischemia, irritation and persistent epithelium defect, were more common in patients in the MMC group as compared to those treated with ALC.·CONCLUSION: The recurrence of pterygium with BSR followed by ALC is lower than that of BSR followed by MMC, and the incidence of other complications is lower.While ALC is a more effective strategy for treating pterygium, the quality of the ALC transplant should be considered when the patient has a history of glaucoma.Tan Long Zhi Li 2015International Journal of Ophthalmology(English edition)2015,8,5:7
15Oddi sphincter preserved cholangioplasty with hepaticosubcutaneous stoma for hepatolithiasis显示文摘AIM: To evaluate the long-term outcomes of Oddi sphincter preserved cholangioplasty with hepaticosubcutaneous stoma(OSPCHS) and risk factors for recurrence in hepatolithiasis.METHODS: From March 1993 to December 2012, 202 consecutive patients with hepatolithiasis underwent OSPCHS at our department. The Oddi sphincter preserved procedure consisted of common hepatic duct exploration, stone extraction, hilar bile duct plasty, establishment of subcutaneous stoma to the bile duct. Patients with recurrent stones can undergo stone extraction and/or biliary drainage via the subcutaneous stoma which can be incised under local anesthesia. The long-term results were reviewed. Cox regression model was employed to analyze the risk factors for stone recurrence.RESULTS: Ninety-seven(48.0%) OSPCHS patients underwent hepatic resection concomitantly. The rate of surgical complications was 10.4%. There was no perioperative death. The immediate stone clearance rate was 72.8%. Postoperative cholangioscopic lithotomy raised the clearance rate to 97.0%. With a median follow-up period of 78.5 mo(range: 2-233 mo), 24.8% of patients had recurrent stones, 2.5% had late development of cholangiocarcinoma, and the mortality rate was 5.4%. Removal of recurrent stones and/or drainage of inflammatory bile via subcutaneous stoma were conducted in 44(21.8%) patients. The clearance rate of recurrent stones was 84.0% after subsequent choledochoscopic lithotripsy via subcutaneous stoma.Cox regression analysis showed that residual stone was an independent prognostic factor for stone recurrence.CONCLUSION: In selected patients with hepatolithiasis, OSPCHS achieves excellent long-term outcomes, and residual stone is an independent prognostic factor for stone recurrence.Yu-Gui Lian Wei-Tao Zhang Zhi Xu Xiao-Feng Ling Li-Xin Wang Chun-Sheng Hou Gang Wang Long Cui Xiao-Si Zhou 2015World Journal of Gastroenterology2015,21,45:6
16Room temperature ferromagnetism in ultra-thin van der Waals crystals of 1T-CrTe2显示文摘Although many emerging new phenomena have been unraveled in two dimensional(2D)materials with long-range spin orderings,the usually low critical temperature in van der Waals(vdW)magnetic material has thus far hindered the related practical applications.Here,we show that ferromagnetism can hold above 300 K in a metallic phase of 1T-CrTe2 down to the ultra-thin limit.It thus makes CrTe2 so far the only known exfoliated ultra-thin vdW magnets with intrinsic long-range magnetic ordering above room temperature.An in-plane room-temperature negative anisotropic magnetoresistance(AMR)was obtained in ultra-thin CrTe2 devices,with a sign change in the AMR at lower temperature,with−0.6%and+5%at 300 and 10 K,respectively.Our findings provide insights into magnetism in ultra-thin CrTe2,expanding the vdW crystals toolbox for future room-temperature spintronic applications.Xingdan Sun Wanying Li Xiao Wang Qi Sui Tongyao Zhang Zhi Wang Long Liu Da Li Shun Feng Siyu Zhong Hanwen Wang Vincent Bouchiat Manuel Nunez Regueiro Nicolas Rougemaille Johann Coraux Anike Purbawati Abdellali Hadj-Azzem Zhenhua Wang Baojuan Dong Xing Wu Teng Yang Guoqiang Yu Bingwu Wang Zheng Han Xiufeng Han Zhidong Zhang 2020Nano Research2020,13,12:6
17An Overview of Terahertz Antennas显示文摘The terahertz(THz)antennas,which have features of small size,wide frequency bandwidth and high data rate,are important devices for transmitting and receiving THz electromagnetic waves in the emerging THz systems.However,most of THz antennas suffer from relatively high loss and low fabrication precision due to their small sizes in high frequency bands of THz waves.Therefore,this paper presents a detailed overview of the most recent research on the performance improvement of THz antennas.Firstly,the development of THz antennas is briefly reviewed and the basic design ideas of THz antennas are introduced.Then,THz antennas are categorized as metallic antennas,dielectric antennas and new material antennas.After that,the latest research progress in THz photoconductive antennas,THz horn antennas,THz lens antennas,THz microstrip antennas and THz on-chip antennas are discussed.In particular,the practical difficulties for the development of THz antennas are discussed with promising approaches.In addition,this paper also presents a short review of the process technology of THz antennas.Finally,the vital challenges and the future research directions for THz antennas are presented.Yejun He Yaling Chen Long Zhang Sai-Wai Wong Zhi Ning Chen 2020China Communications2020,17,7:6
18Generation of electricity from CO_2 mineralization: Principle and realization显示文摘Current CO2 reduction and utilization technologies suffer from high energy consuming. Thus, an energy favourable route is in urgent demanding. CO2 mineralization is theoretically an energy releasing process for CO2 reduction and utilization, but an approach to recovery this energy has so far remained elusive. For the first time, here we proposed the principle of harvesting electrical energy directly from CO2 mineralization, and realized an energy output strategy for CO2 utilization and reduction via a CO2-mineralization fuel cell(CMFC) system. In this system CO2 and industrial alkaline wastes were used as feedstock, and industrial valuable Na HCO3 was produced concomitantly during the electricity generation. The highest power density of this system reached 5.5 W/m2, higher than many microbial fuel cells. The maximum open circuit voltage reached 0.452 V. Moreover, this system was demonstrated viable to low concentration CO2(10%) and other carbonation process. Thus, the existing of an energy-generating and environmentally friendly strategy to utilize CO2 as a supplement to the current scenario of CO2 emission control has been demonstrated.XIE He Ping WANG Yu Fei HE Yang GOU Ma Ling LIU Tao WANG Jin Long TANG Liang JIANG Wen ZHANG Ru XIE Ling Zhi LIANG Bin 2014Science China(Technological Sciences)2014,57,12:6
19Validity assessment and determination of the cutoff value for the Index of Complexity, Outcome and Need among 12-13 year-olds in Southern Chinese显示文摘To validate the use of the Index of Complexity,Outcome and Need (ICON) in assessing orthodontic treatment need among 12-13 year-olds in southern China,we determined the threshold value of ICON based on Chinese orthodontists' judgments. The samples consisted of 335 students in grade 7 from 16 randomly selected middle schools in Chengdu,China. Three associate professors provided ICON scores for each participant and the results were compared with the gold standard judgments from 25 experts on treatment needs. Based on the gold standard,195 casts belonged to the treatment category,while the rest 140 belonged to the no-treatment category. With the international cutoff point of 43,the sensitivity and specificity of the ICON score were 0.29 and 0.98. The best compromise between sensitivity and specificity in Chengdu,compared with the gold standard,was found at a cutoff point of 29,and the sensitivity and specificity were 0.88 and 0.83. When used to evaluate the treatment need of 12-13 year-olds in southern China,the international ICON cutoff value did not correspond well with Chinese orthodontists' judgments; a lower cutoff value of 29 offered a greater sensitivity and specificity with respect to expert orthodontists' perception of treatment need.Zheng-Yu Liao Fan Jian Hu Long Yun Lu Yan Wang Zhi Yang Yu-Wei He Peter Wamalwa Jing Wang Nian-Song Ye Sheng Wang Wen-Li Lai 2012International Journal of Oral Science2012,4,2:5
20Exposure Effects of Terahertz Waves on Primary Neurons and Neuron-like Cells Under Nonthermal Conditions显示文摘Objective This study aimed to explore the potential effects of terahertz(THz) waves on primary cultured neurons from 4 rat brain regions(hippocampus, cerebral cortex, cerebellum, and brainstem)and 3 kinds of neuron-like cells(MN9 D, PC12, and HT22 cells) under nonthermal conditions.Methods THz waves with an output power of 50(0.16 THz) and 10(0.17 THz) m W with exposure times of 6 and 60 min were used in this study. Analysis of temperature change, neurite growth, cell membrane roughness, micromorphology, neurotransmitters and synaptic-related proteins(SYN and PSD95) was used to evaluate the potential effects.Results Temperature increase caused by the THz wave was negligible. THz waves induced significant neurotransmitter changes in primary hippocampal, cerebellar, and brainstem neurons and in MN9 D and PC12 cells. THz wave downregulated SYN expression in primary hippocampal neurons and downregulated PSD95 expression in primary cortical neurons.Conclusion Different types of cells responded differently after THz wave exposure, and primary hippocampal and cortical neurons and MN9 D cells were relatively sensitive to the THz waves. The biological effects were positively correlated with the exposure time of the THz waves.TAN Sheng Zhi TAN Peng Cheng LUO Lan Qing CHI Yun Liang YANG Zi Long ZHAO Xue Long ZHAO Li DONG Ji ZHANG Jing YAO Bin Wei XU Xin Ping TIAN Guang CHEN Jian Kui WANG Hui PENG Rui Yun 2019Biomedical and Environmental Sciences2019,32,10:5
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