3.Effect of carbon monoxide releasing molecule on experimental periodontitis in rats.
Lingling WEI ; Meng HOU ; Ping WANG ; Hui SONG
West China Journal of Stomatology 2014;32(1):23-26
OBJECTIVETo evaluate the effects of carbon monoxide releasing molecule-2 (CORM-2) on experimental periodontitis in rats.
METHODSForty-two Wistar rats were divided into three groups. Rats in the normal group (NL group) did not undergo any procedure, whereas the other rats were ligatured and treated with saline solution (NaCl 0.9%) (LO group) or treated with CORM-2 (10 mg kg(-1) per day) (CO group). A 3-0 silk suture was placed around the mandibular first molars. Rats were sacrificed after 3, 7, and 10 d. Blood samples were collected from all animals for tumor necrosis factor-alpha (TNF-alpha) and interleukin-1beta (IL-1beta) analysis. Changes in alveolar bone levels were measured clinically, and periodontal tissues were histopathologically examined to assess the infiltration of inflammatory cells.
RESULTSLigature placement increased alveolar bone loss and inflammatory cell infiltration in periodontal tissue. Alveolar bone loss in CO group was significantly higher than that in NL group, but was lower than that in LO group (P<0.05). The ratio of inflammatory cell infiltration in LO group was significantly higher than that in CO and NL groups, and that in CO group was lower than in LO group (P<0.05). Serum levels of TNF-alpha and IL-1beta in the LO group were significantly higher than those in the CO and NL groups, and those in CO group were lower than in LO group (P<0.05).
CONCLUSIONSystemic administration of CORM-2 reduced periodontal inflammation and alveolar bone loss in experimental periodontitis in rats.
Alveolar Bone Loss ; Animals ; Carbon Monoxide ; Periodontitis ; Rats ; Rats, Wistar ; Tumor Necrosis Factor-alpha
4.Molecular identification of Cynomorii herba using ITS2 DNA barcoding.
Dian-Yun HOU ; Jing-Yuan SONG ; Lin-Chun SHI ; Pei YANG ; Shi-Lin CHEN ; Hui YAO
China Journal of Chinese Materia Medica 2013;38(23):4028-4032
OBJECTIVETo identify the Cynomorii Herba and its analogues species using DNA barcoding technique.
METHODTotal genomic DNA extracted from all materials using the DNA extraction kit. The internal transcribed spacer 2 (ITS2) regions were amplified using polymerase chain reaction (PCR), and purified PCR products were sequenced bi-directionally. Sequence assembly and consensus sequence generation were performed using the CodonCode Aligner 3.7.1. The Kimura 2-Parameter (K2P) distances and GC content were computed using MEGA 5. 0. Species identification analyses were conducted through the species identification system for traditional Chinese medicine and neighbor-joining (NJ) trees.
RESULTThe ITS2 sequence lengths of Cynomorii Herba were 229 bp. The average intra-specific genetic distances of Cynomorii Herba were 0.003. The average inter-specific genetic distances between Cynomorii Herba and its adulterants species were 0.760. The results showed that the minimum inter-specific divergence is larger than the maximum intra-specific divergence. The species identification system for traditional Chinese medicine and NJ trees results indicated that Cynomorii Herba and its adulterants species can be easily identification.
CONCLUSIONThe ITS2 region is an efficient barcode for identification of Cynomorii Herba, which provide a new technique to ensure clinical safety in utilization of traditional Chinese medicine.
Cynomorium ; classification ; genetics ; DNA Barcoding, Taxonomic ; DNA, Intergenic ; genetics ; DNA, Plant ; genetics ; Polymerase Chain Reaction
5.Identification of peucedani radix, peucedani decursivi radix and its adulterants using ITS2 sequence.
Dian-Yun HOU ; Jing-Yuan SONG ; Pei YANG ; Hong ZHOU ; Tian-Yi XIN ; Hui YAO
China Journal of Chinese Materia Medica 2014;39(21):4186-4190
In order to identify Peucedani Radix, Peucedani Decursivi Radix and their adulterants, the internal transcribed spacer 2 (ITS2) regions of Peucedani Radix, Peucedani Decursivi Radix and their adulterants were amplified and bidirectionally sequenced based on the Principles for Molecular Identification of Traditional Chinese Materia Medica Using DNA Barcoding, which has been promulgated by Chinese Pharmacopoeia Commission. Sequences were analyzed and assembled by Codon Code Aligner V3. 7.1. The relevant data were analyzed by MEGA 5. 0. Species identification analyses were performed by using the nearest distance methods and neighbor-joining (NJ) methods. The result showed that the ITS2 sequence lengths of Peucedani Radix were 229-230 bp and the average intra-specific genetic distances were 0.005. The ITS2 sequence lengths of Peucedani Decursivi Radix were 227 bp and the sequences contained no variation site. The average inter-specific K2P genetic distance of Peucedani Radix, Peucedani Decursivi Radix and their adulterants species were 0.044 and 0.065 respectively. The minimum inter-specific divergence is larger than the maximum intra-specific divergence of Peucedani Decursivi Radix. The nearest distance methods and NJ trees results indicated that Peucedani Radix, Peucedani Decursivi Radix and their adulterants species could be identification clearly. The ITS2 regions can stably and accurately distinguish Peucedani Radix, Peucedani Decursivi Radix and their adulterants.
Apiaceae
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classification
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genetics
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DNA Barcoding, Taxonomic
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methods
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DNA, Ribosomal Spacer
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Drug Contamination
6.Comparison of the clinical effect of MC and LC in treatment of elderly patients with cholelithiasis
Kezhu HOU ; Hua GONG ; Wei LIU ; Song ZHU ; Hui LIN ; Yi ZHOU ; Huajia DAI
Chinese Journal of Primary Medicine and Pharmacy 2011;18(9):1176-1177
Objective To observe the clinical effect of MC and LC in treatment of elderly patients with cholelithiasis and dise~s the best treatment in elderly patients with cholelithiasis.Methods Of 798 elderly patients with cholelithiasis,412 patients were divided into MC group with minilaparotomy cholecystectomy treatment,and 386 patients were divided into LC group with laparoseopic cholecystectomy treatment,then compare clinical effect and complications after operation.Results There was no significant differences in incision length,operative time,blood loss,bed time,hospital stay(all P<0.05);There Was significant statistical significance in cost of treatment,complications after operation(all P<0.05).Conclusion Minilaparotomy cholecystectomy was suitable for elderly patients with cholelithiasis,and it Was good at cost of treatment,complications after operation.
7.Hospital Infection in EICU Ward: Investigation and Analysis
Xiao-Li SONG ; Ying HOU ; Hui LV ; Xi-Yun GUO ; Xiao-Qiu YANG ;
Chinese Journal of Nosocomiology 2006;0(06):-
OBJECTIVE To investigate the hospital infection rate and sites of patients in emergency intensive care(unit)(EICU),and provide basis for prevention and treatment of hospital infection.METHODS Patients who were hospitalized in EICU were investigated by retrospective study.RESULTS Among the hospital infection sites,(respiratory) tract was the most frequent one(65.63%),the next was urinary tract(28.13%),and the deep vein was the third(6.25%).The most common hospital infection bacteria were Staphylococcus aureus,Pseudomonas aeruginosa and Acinetobacter baumannii.CONCLUSIONS The analysis of the subjective and objective factors of hospital infection,and the acknowledge of relationship between nursing and hospital infection sites are(important) basis for hospital infection prevention and treatment.
8.Finite element model and modal analysis of CT shelter based on ANSYS
Song BAI ; Baoguo YU ; Bin FAN ; Hui DING ; Yongzhong ZHANG ; Haojun FAN ; Shike HOU
Chinese Medical Equipment Journal 2015;(9):14-16,30
To perform modal analysis of CT shelter by applying computer simulation technology so as to pro-vide theoretical guidance for CT shelter structure optimization. Based on CAD model, the finite element model of a CT shelter was established with ANSYS simulation platform. Through modal analysis, different-order modal frequency and modal shape of the shelter were computed and the kinetic characteristics were evaluated. Low order modal frequency was kept away from the natural frequency range of chassis system resonance to avoid the overall structure reso-nance; the 3rd and the 4th modal frequency and engine idle speed frequency were very close so that local resonance might occur; road roughness excitation frequency covered the first 6 order modal frequencies and the further vibration-re-ducing measures of CT equipment were suggested. Based on the theories of finite element method and current software platform, modal analysis of shelter structure can be simulated and the results can provide valuable data for the improvement of kinetic characteristics and structure design.
9.Application of intravoxel incoherent motion diffusion-weighted imaging in diagnosis of lung cancer
Yuejiao HOU ; Xianwen JIN ; Jingxian CHEN ; Gesheng SONG ; Hui LUO ; Chengqi ZHANG
Journal of Practical Radiology 2016;32(8):1194-1197,1217
Objective To explore the diagnostic value of intravoxel incoherent motion diffusion-weighted imaging(IVIM-DWI)in diagnosis of different pathological types of lung cancer.Methods 45 patients were performed traditional MR and multi-b value DWI scan by GE discovery 750 MR.The values of Slow-ADC,Fast-ADC and ffast measured on a AW4.5 workstation were analyzed between the different pathological types of lung cancers.The correlations between these IVIM-DWI parameters and the serum tumor markers of lung cancer were analyzed.The diagnostic efficiency of these parameters were evaluated by receiver operator characteristic curve (ROC).Results 27 cases NSCLC(13 cases squamous carcinoma;14 cases adenocarcinoma )and 18 cases SCLC were finally included in this study.There were significant differences in Slow-ADC values between SCLC group and NSCLC group (P =0.00),the adenocarcinoma group (P=0.03),the squamous carcinoma group(P=0.01).There were no significant difference in Fast-ADC as well as ffast value between any two groups.The AUC of Slow-ADC value was 0.874.There existed negative correlation between squamous cell carcinoma antigen(SCC-Ag)of squamous carcinoma group and Slow-ADC(r=-0.730).Conclusion The Slow-ADC of IVIM-DWI parameters is useful in differential diagnosis of NSCLC and SCLC,which has the largest diagnostic efficiency.The correlation between SCC-Ag and Slow-ADC value has a certain meaning in diagnosing different pathological types of lung cancers.
10.Penile frenulum lengthening for premature ejaculation.
Bo SONG ; Zhen-hui HOU ; Qun-long LIU ; Wei-ping QIAN
National Journal of Andrology 2015;21(2):149-152
OBJECTIVETo evaluate the effect of penile frenulum lengthening in the treatment of premature ejaculation (PE).
METHODSThirty-four males with PE were enrolled in this study, of whom 8 had received circumcision six months before and 4 had redundant prepuce, all with short frenulum. Those with a history of circumcision underwent reconstruction and lengthening of the frenulum, and those without received frenulum lengthening only.
RESULTSCompared with the baseline, the intravaginal ejaculation latency time (IELT) was significantly increased at 1 month after operation ([1.35 ± 0.49] vs [5.71 ± 2.69] min, t = -9.42, P <0.01), (1.42 ± 0.5) vs (5.31 ± 2.74) min in the patients without circumcision (t = -7.41, P <0.01), (1.12 ± 0.35) vs (7.00 ± 2.20) min in those with circumcision (t = -7.24, P <0.01), and (1.50 ± 0.58) vs (4.75 ± 1.71) min in those with redundant prepuce (t = -3.81, P <0.05). Totally, 94% of the patients were satisfied with their sexual intercourse postoperatively.
CONCLUSIONPenile frenulum plays an important role in penile erection. Reconstruction and/or lengthening of the frenulum can prolong penile erection and IELT in PE patients.
Adult ; Circumcision, Male ; rehabilitation ; Coitus ; Ejaculation ; Foreskin ; surgery ; Humans ; Male ; Penile Erection ; Premature Ejaculation ; surgery ; Reconstructive Surgical Procedures ; methods