1.Clinical analysis of acute primary Vogt-Koyanagl-Harada syndrome
Jie ZHANG ; Xiaomei MENG ; Tiantian CHEN
Chinese Journal of General Practitioners 2016;15(3):219-222
The clinical characteristics, therapeutic effects and complications of 32 incipient patients with acute Vogt-Koyanagi-Harada ( VKH) syndrome admitted in Wuxi Second Hospital during October 2010 to September 2013 were retrospectively analyzed.There were 15 males and 17 females with a mean age of (41.3 ±14.1) years (22 -71 years), the time from the disease onset to treatment ranged from 3 to 20 days.Among 32 cases, 30 ( 94%) had premonitory symptoms. The multifocal bullous neurosensory detachment, optic disk hyperemia and edema in posterior pole of fundus were found in all cases, and exudative retinal detachment was found in 4 cases (6 eyes).The results of optical coherence tomography ( OCT) showed the macula neurosensory detachment, thick retinal neuroepithelial layer and wavy RPE layer in all patients.Fundus fluorescein angiography ( FFA) showed that scattered hyperfluorescence dots and cystic fluorescein reservoir was observed in early phase and later period respectively.Patients received intravenous methylprednisolone with the onset dose of 80 mg per day for 3-7 days and oral administration followed, which would gradually decrease later;the average treatment duration was (52.9 ±14.6) weeks. The visual acuity of 40 eyes (22 cases) was recovered to more than 0.8, and no blindness occurred after the treatment.During the treatment hair loss, depigmentation of skin and hair were found in 12 cases (38%) , and 2 cases showed short-term elevated intraocular pressure.These symptoms disappeared after drug therapy ceased.And no recurrence was found during the follow-up of 6 months.However, sunset glow fundus was found in 13 patients (26 eyes).The study shows that the diagnosis of VKH syndrome is based on the typical signs of the fundus presented on OCT and FFA.Early and systemic administration of glucocorticoids is important treatment for patients with VHK syndrome, which could decrease systemic and local complications effectively.
2.Regulation of acupuncture on NMDAR1 mRNA expression in visual cortex of monocularly-deprived rats
Tiantian ZHU ; Cheng CHEN ; Xingke YAN
Journal of Acupuncture and Tuina Science 2017;15(1):1-7
Objective: To explore the molecular biological mechanism of acupuncture in intervening visual deprivation.
Methods: Forty-eight 2-week old Wistar rats were randomly divided into a normal group, a model group, and 6 acupuncture groups (group C1: acupuncture at the unaffected side in early stage; group C2: acupuncture at the affected side in early stage; group D1: acupuncture at the unaffected side in mid-stage; group D2: acupuncture at the affected side in mid-stage; group E1: acupuncture at the unaffected side in late stage; group E2: acupuncture at the affected side in late stage) by the random number table, 6 rats in each group. Rats in the normal group didn’t receive any interventions. The rat model of deprivation amblyopia was established by unilateral eyelid suture in the model group and each acupuncture group. After successful modeling, rats in model group didn’t receive any treatments; rats in the acupuncture groups received acupuncture intervention which began respectively on the 3rd, 12th and 21st day after modeling. Pattern visual evoked potential (P-VEP) and N-methy D-aspartatreceptor-1 (NMDAR1) mRNA expression in visual cortex area 17 were detected at the end of acupuncture intervention in each group.
Results: After the intervention, the P-VEP waveform was significantly changed, with a significantly delayed P100 value (P<0.01) and significantly decreased amplitude of N45-P100 in the model group versus the normal group (P<0.01); the P-VEP waveform was significantly improved, with obviously earlier P100 (P<0.01) and increased amplitude of N45-P100 (P<0.05) in each acupuncture group versus the model group. The improvement effect of acupuncture on the P-VEP waveform in group C1 and C2 was more significant than that in group D1, D2, E1 and E2. The expression of NMDAR1 mRNA of the rat visual cortex area 17 in the model group was significantly lower than that in the normal group (P<0.01); and the expression of NMDAR1 mRNA in the visual cortex area 17 of each acupuncture group was significantly higher than that in the model group (P<0.05); the effect of acupuncture on NMDAR1 mRNA expression in group C1 and C2 was more significant than that in group D1, D2, E1 and E2; and the effect of acupuncture on NMDAR1 mRNA expression was better in group C2 than in group C1 (P<0.05); there was no significant difference in the expression of NMDAR1 mRNA between group D1 and D2, neither between E1 and E2 (P>0.05).
Conclusion: P-VEP waveform is abnormal and NMDAR1 mRNA expression in visual cortex area 17 is decreased in rats with monocularly-deprived amblyopia. Acupuncture in the sensitive period can significantly regulate the abnormal P-VEP waveform and the down-regulate the NMDAR1 mRNA expression of the visual cortex of rats with monocularly-deprived amblyopia. Early treatment in the sensitive period should be the key to obtaining the curative effect.
3.The treatment of subglottic pleomorphic adenoma using the hypothermia plasma ablation: two cases report.
Tiantian YANG ; Weilun CHEN ; Xin WU
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2016;30(5):410-412
Subglottic pleomorphic adenoma is a rare disease . Surgery is the main curative treatment. To review some clinical cases and to summarize the characteristics and treatment experience of this disease,it is expected that we can provide more clinical thought and therapeutic strategy for subglottic pleomorphic adenoma.
Adenoma, Pleomorphic
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therapy
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Humans
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Hypothermia, Induced
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Rare Diseases
4.Coxsackievirus A and its antiviral drugs:research advances
Tiantian SHEN ; Chen XU ; Xiangdong GAO
Journal of International Pharmaceutical Research 2017;44(6):480-486
Coxsackievirus A(CV-A)is a common virus associated with a number of serious human diseases,including menin-gitis,myocarditis,herpangina,conjunctivitis and hand,foot and mouth syndrome. In recent years,with the increase of epidemics events with CV-A as the main pathogen,the studies focusing on the CV-A infection have attracted more attention. In this paper,we comprehensively review the basic characteristics,pathogenesis and potential antiviral drugs of CV-A.
5.Body temperature and prognosis in patients with massive hemispheric infarction in acute phase
Jingwei ZHAO ; Yingying SU ; Tiantian LIU ; Weibi CHEN
International Journal of Cerebrovascular Diseases 2009;17(7):506-510
in order to maintain a normal temperature range.
6.Distribution and drug resistance of pathogens isolated from urine culture in 2013 from a 3A hospital
Qiang XIE ; Mingjie CAO ; Ling CHEN ; Chengyu LEI ; Tiantian XU
International Journal of Laboratory Medicine 2015;(14):2047-2048
Objective To investigate the distribution and drug resistance of pathogens isolated from urine culture in 2013 and provide basis for clinical treatment .Methods MicroScan WalkAway 96 PLUS bacterial identification system was used to identify the pathogens and drug susceptibility testing .The data were analyzed by WHONET 5 .6 software .Results A total of 231 strains of pathogens were isolated from urine cultures ,including 51(22 .1% ) strains of gram‐positive bacteria ,170(73 .6% ) strains of gram‐negative bacteria ,and 10(4 .3% ) strains of fungi;Escherichia coli ,the coagulase‐negative Staphylococcus ,Klebsiella pneumoniae and E .faecalis were ranked the top four species of pathogens ,accounting for 48 .9% ,13 .0% ,9 .5% ,5 .2% ,respectively .MRCNS among CNS were 73 .6% .Staphylococcus had 100 .00% sensitivity to vancomycin and linezolid ;the antimicrobial resistance rate of E .fae‐calis to ampicillin was 8 .3% .E .faecalis had 100 .00% sensitivity to vancomycin and linezolid .the detectable rates of Escherichia co‐li ,Klebsiella pneumoniae of ESBLs were 52 .2% and 50 .0% ,and the strains had 100 .00% sensitivity to imipenem and meropenem . Conclusion Escherichia coli is a major pathogen in urine culture ,Bacterial resistance is serious .
7.Information commons concept-based stereoscopic resources support system for academic library and its application
Tiantian SHAN ; Hao CHEN ; Qin YAO ; Xuefang MEI ; Hongxin CAO
Chinese Journal of Medical Library and Information Science 2017;26(4):34-39
The information commons concept-based stereoscopic resources support system for academic library with brand-new connotations and its application were proposed according to the increasing development and expansion of informationization, networking and digitization in different social fields, the significant change in disseminating methods of information resources, and the need of readers for library service.
8.Intelligent regulation scheme of the gastrointestinal delivery capsule's driving force
Zhengping LU ; Xudong GUO ; Lu LUO ; Wen CHEN ; Tiantian PAN
International Journal of Biomedical Engineering 2017;40(1):16-19
Objective To intelligently adjust the driving force of a remote-controlled drug delivery capsule based on the postural information in intestines,so as to achieve the control of speed and dosage of drug delivery and reduce the energy consuming.Methods A six-axis sensor MPU6050 was used,and its Z axis was coincident with the central axis of the drug delivery capsule so as to made the medicine discharge port pointing to the Z direction.The angular velocities and accelerations of X,Y,Z axes were monitored,transformed to quaternion with built-in digital motion processor,and then converted to Euler angle form.The intelligence adjustment of driving force could be achieved by accessing the real-time attitude angle of the capsule.Results The results of experiments showed that the error between the actual and the attitude angle measured by the sensor was less 1°.Conclusions The intelligent adjustment scheme of driving force of a gastrointestinal remote-controlled drug delivery capsule was designed.The real-time attitude angles of the capsule could be obtained with high spped and precision.This study can provide the theoretical and experimental basis for the intelligent adjustment of the driving force.
9.Surveillance of antimicrobial resistance in the clinical isolates from Children's Hospital of Chuzhou during 2014
Ling CHEN ; Mingjie CAO ; Qiang XIE ; Tiantian XU
Chinese Journal of Infection and Chemotherapy 2017;17(1):37-41
Objective To investigate the distribution and antimicrobial resistance of the clinical isolates from Children's Hospital of Chuzhou during 2014.Methods A retrospective analysis was conducted with the bacterial strains isolated from various clinical specimens in 2014.Results A total of 382 clinical isolates were collected during 2014, of which gram positive organisms and gram negative organisms accounted for 37.4 % and 62.6 %, respectively. The top 5 most frequently isolated microorganisms were E. coli (18.8 %),K. pneumoniae (16.8 %), coagulase negative Staphylococcus (13.1 %),S. pneumoniae (9.4 %) and S. aureus (9.2 %). The prevalence of MRSA was 28.6 % in S. aureus and the prevalence of MRCNS was 76 % in CNS. All staphylococcal strains were susceptible to daptomycin, linezolid and vancomycin. All the E. faecalis and E. faecium isolates were sensitive to daptomycin, linezolid and vancomycin. All the S. pneumoniae strains were susceptible to penicillin. The prevalence of extended spectrum-lactamases (ESBLs) positive strains was 58.3 % in E. coli and 28.1 % in K. pneumoniae. The Enterobacteriaceae strains were highly sensitive to carbapenems. Only 3 (1.6 %) carbapenem-resistant strains were identified in the Enterobacteriaceae isolates. About 13.3 % and 6.7 % of theP. aeruginosa isolates were resistant to piperacillin and levofloxacin, respectively. All the P. aeruginosa strains were sensitive to the other antimicrobial agents. The percentage of carbapenem-resistantAcinetobacter strains was lower than 10 %. Only one carbapenem-resistant A. baumannii strain was identified.Conclusions Gram negative microorganisms account for most part of the clinical bacterial isolates in 2014. The antimicrobial resistance is still very serious in this hospital, especially the emergence of carbapenem-resistant Enterobacteriaceae, which is of great concern.
10.Assessment of journals according to their weighted citations
Li LI ; Hao CHEN ; Qin YAO ; Tiantian SHAN ; Hongxin CAO
Chinese Journal of Medical Library and Information Science 2014;(10):70-74
A method to assess library-holding journals according to their weighted citations was proposed in light of the actual needs of users for core journals, the use of library-holding journals and references by authors in different orders of precedence.The Western journal of rheumatology, highly cited by authors of Second Military Medical U-niversity, were assessed using this method, showing that this method is better than the citation analysis-based tra-ditional method in assessment of journals.