1.Analysis of Clinical Features and Drug Sensitivity of 67 Newborn Infants with Klebsiella Pneumoniae
Journal of Applied Clinical Pediatrics 2006;0(16):-
Objective To explore the clinical characteristics and drug sensitivity of newborn pneumonia of klebsiella pneumoniae,and investigate the positive rate of extended-spectrum ? lactamases(ESBLs)in klebsiella pneumoniae.Method Sixty-seven cases of sputum samples newborn pneumonia of klebsiella pneumoniae from Jan.2003 to Dec.2005 were collected.Bacteria identification and drug sensitivity test were performed.At the same time,ESBLs were detected.Results The clinical characteristics of newborn pneumonia of klebsiella pneumoniae were non special,and the positive rate of ESBLs in klebsiella pneumoniae was 17.91%.The klebsiella pneumoniae was 100%sensitivie to carbopenems,but resistant to commonly used ?-antibiotics such as penicillin and cephalosporin.ESBLs negative strains had higher drug sensitivity than ESBLs strains.Conclusions Partial klebsiella pneumoniae are ESBLs strains and insensitive to commonly used antibiotics.In order to decrease ESBLs strains,the antibiotics treatment shall be used appropriately and the selection of antibiotics shall be guided by the results of drug sensitivity tests.
3.Initial stress distribution of the maxillary anterior teeth, periodontal ligament and alveolar bone by different intruding loadings A three-dimensional finite element analysis
Hongfei LU ; Zhihui MAI ; Qi CHEN ; Yue CHEN ; Hong AI
Chinese Journal of Tissue Engineering Research 2011;15(48):8964-8967
BACKGROUND: It is very important to explore an optimal loading force that can both allow effective intrusion and cause no damage to the teeth.OBJECTIVE: To investigate the optimal loading conditions, including loading force values and directions, in the intruding mechanics of maxillary anterior teeth.METHODS: A three-dimensional finite element model (3D FEM) of the maxillary anterior teeth was constructed to include the periodontal ligament (PDL), alveolar bone, and appliance (brackets and wire). The initial stress distribution and force of the maxillary anterior teeth were analyzed when the 3D FEM was loaded with different intruding force values and directions. RESULTS AND CONCLUSION: The optimal value of the intruding force for 6 anterior teeth fell within the range from 0.5 N to 1.0 N. The maximum stress was detected at the distal cervical level of the lateral incisor, and a relatively even distribution of initial stress was observed at 20° palatal deviation to the Y axis. The results suggest that using mini-screw implants at the labial region between the canine and lateral incisor and a combined 0.5-1.0 N intruding force with a distal force could be an optimal intrusion force system by which patients with normal occlusion could obtain a pure intrusion of anterior teeth.
4.Expression of HOXB6 Gene on Differentiation of Hematopoietic Stem Cells and Intervention Research
hong-ying, CHEN ; ai, CHEN ; wen-jun, LIU
Journal of Applied Clinical Pediatrics 1993;0(03):-
Objective To observe the expression level of HOXB6 gene on the differentiation and proliferation of hematopoietic stem cells(HSC) to colony forming unit-granulocyte-monocyte(CFU-GM),erythroid progenitor(CFU-E) and colony forming unite-T-lymphocyt(CFU-TL).And the proliferation procress was affected by all-transretinoic acid(ATRA).Methods 1.By the colony culture in vitro,the impact of ATRA on the CFU-GM,CFU-E,CFU-TL colony formation were surveyed;the expressions of HOXB6 gene were observed on the differentiation procress of HSC to CFU-GM,CFU-E and CFU-TL affected by ATRA on the 3rd,7th,12th.2.Real-time fluorogenic quantitative reserve transcription-polymerize chain reaction(FQ-RT-PCR) method was used to explore the possible mechanism of ATRA up-regulated to human cord blood CFU-GM,CFU-E and CFU-TL in gentic level.Results 1.HOXB6 gene had a regulatory function in the differentiation procress of hematopoiesis.During the differentiation and proliferation of HSC to colony forming CFU-GM or CFU-E,CFU-TL in vitro,the expressions of HOXB6 gene were significant positive.2.Compared with the expressions of CFU-GM and CFU-TL HOXB6 mRNA on day 3,the quantity of HOXB6 mRNA was obviously higher on day 7 and lower on day 12,respectively in each group.Compared with the expression of CFU-E HOXB6 mRNA on day 3,the quantity of HOXB6 mRNA was obviously higher on day 12 in each group.3.Compared with the HOXB6 gene of control group,the expressions of HOXB6 gene of group ATRA were up-regulated remarkable.Conclusions 1.HOXB6 gene has a regulatory function in the differentiation procress of hematopoiesis.HOXB6 gene plays an important role in the progress which can be associated with the regulating effect of HOXB6 gene on the differentiation and proliferation of CFU-GM,CFU-E and CFU-TL.2.During the differentiation and proliferation of HSC,the expression of HOXB6 gene is regular in time.3.Low concentration of ATRA(60 ?mol?L-1) can up-regulate the expression of HOXB6 gene,which confirms the theory that the normal hematopoie-tic lineage determination and maturation rely on the stable and consistent expression of HOXB6 gene.
5.Therapeutic Observation of Acupuncture-moxibustion plusMEI Te-lan’s Manipulations for Lumbar Intervertebral Disc Herniation (Blood Stagnation Pattern)
Anhong LI ; Shuangchun AI ; Hong ZHANG ; Longdi WU ; Jing CHEN
Shanghai Journal of Acupuncture and Moxibustion 2016;(1):58-62
Objective To observe the clinical efficacy of acupuncture-moxibustion plusMEI Te-lan’s manipulations in treating lumbar intervertebral disc herniation (LIDH) due to blood stagnation.Method Totally 248 LIDH patients due to blood stagnation were randomized into a treatment group of 123 cases and a control group of 125 cases. The treatment group was intervened by acupuncture-moxibustion plusMEI Te-lan’s manipulations, while the control group was by acupuncture-moxibustion plus tuina at lower back. The short-form McGill Pain Questionnaire (SF-MPQ) and Oswestry disability index (ODI) were observed before and after intervention, and the clinical efficacies were compared between the two groups.Result The total effective rate and recovery-markedly effective rate were respectively 80.5% and 52.0% in the treatment group, versus 72.8% and 20.0% in the control group. There was a significant difference in comparing the recovery-markedly effective rate between the two groups (P<0.05). In the treatment group, the Pain Rating Index (PRI) score, Visual Analogue Scale (VAS) score, Present Pain Intensity (PPI) score, and ODI score were significantly changed after 3-day, 6-day, and 20-day treatment compared to the scores before treatment (P<0.05). After 20-day treatment, the PRI, VAS, PPI, and ODI scores of the treatment group were significantly different from that of the control group (P<0.05).Conclusion Acupuncture-moxibustion plusMEI Te-lan’s manipulations is an effective method in treating LIDH due to blood stagnation.
6.Cephalometric analysis for Angle's class Ⅲ malocclusion patient with maxillary front traction
Hongfei LU ; Zhihui MAI ; Hong AI ; Qi CHEN
Chinese Journal of Medical Aesthetics and Cosmetology 2009;15(6):395-398
Objectives To study the changes of hard tissue before and after orthodontic treatment for Angle's class Ⅲ malocclusion adolescence patient with maxillary front traction. Methods 20 cases of Angle's class Ⅲ malocclusion adolescence patients were treated by front traction in maxilla, while there were 20 cases of Angle's class Ⅰ malocclusion adolescence patients as the control group. Cephalometric a-nalysis was carried out before and after the treatment. Data were analyzed by SPSS11.0 system using paired t-test. Results There were significant increases in the length, anteroposterior diameter and thick-ness of maxillary sinus (P<0.05), while there was no significant differences in the site and central point of maxillary sinus(P>0.05). Conclusions It is a effective approach to change the hard tissue after ortho-dontic treatment for Angle's class Ⅲ malocclusion adolescence patient with front traction in maxillary area.
7.Clinical Research of a New Movable Molar Distalization Appliance
Hongfei LU ; Zhihui MAI ; Qi CHEN ; Hong AI
Journal of Sun Yat-sen University(Medical Sciences) 2010;31(2):278-281
[Objectives]This study was designed to evaluate the treatment effects of a new movable molardistalization appliance for distal movement of maxillary first molars on Angle's Class Ⅲ malocclusion adolescence patients with the second premolar crowded.[Methods]Sixteen patients were treated by a new movable molardistalization appliance.Cephalometric analysis and model measurement was carried out before and after the treatment.Data were analyzed by paired t-test.[Results]The molars were distalized 5 mm during an average time of 3.8 months.There were significant increases in the Angle SNA and A-NPg(P <0.05).[Conclusion]it was a effective way to get space and improve patient's profiles on Angle's Class Ⅲ malocclusion adolescence patients with the second premolar crowded by the new movable molardistalization appliance.It was also conducive to patient's oral hygiene.
8.Comparison of Job Satisfaction among Eight Health Care Professions in Private (Non-Government) Settings
Ai-Hong Chen ; Saidah Nafisah Jaafar ; Abdul Rahim Md Noor
Malaysian Journal of Medical Sciences 2012;19(2):19-26
Background: A comparison of the job satisfaction of health care professionals has not been well studied in Malaysia. This study aimed to compare the job satisfaction level among 8 groups of health care professionals in private settings, using the Job Satisfaction Survey (JSS).
Methods: A total of 81 health care professionals, including nurses, physiotherapists, occupational therapists, medical laboratory technologists, dieticians, medical imaging practitioners, environmental health officers, and optometrists in private (non-government) settings in the Klang Valley, were interviewed using the Job Satisfaction Survey scale invented by Dr Paul E Spector. Their job satisfaction scores were calculated and determined.
Results: In the demographic data, the majority of the subjects were 20–30 years old (81.5%), were female (72.8%), had a basic degree (98.8%), were single (64.2%), and had 1–5 years of working experience (83.9%). A Kruskal–Wallis analysis showed significant differences (P < 0.05) in promotion, supervision, operating conditions, co-workers, nature of the work, and communication, but there were no significant differences (P > 0.05) in pay, fringe benefits, and contingent rewards in JSS score among the 8 health care professions. The Friedman Test showed a significant difference of overall JSS scores (χ2 = 526.418, P < 0.001) among the 8 health care professions.
Conclusion: The overall job satisfaction levels are different among health care professionals in private settings, especially regarding promotion, supervision, operating conditions, co-workers, the nature of the work, and communication.
10.One-staged coverage and revascularisation of traumatised fingers by neighboring digital artery flow-through flaps
Tao LI ; Zhenbing CHEN ; Xiaobin CONG ; Fangxing AI ; Guangxiang HONG
Chinese Journal of Microsurgery 2014;37(1):10-13
Objective To investigate the clinical application of neighboring digital artery flow-through flaps for one-staged skin coverage and revascularisation after severe finger injuries.Methods From May 2008 to July 2010,there were ischemic fingers had severe injuries,aged 19 to 52 years old,which were male in 5 cases,female in 2 cases,with skin and arterier defected.One-staged coverage and revascularisation of traumatised fingers were used with neighboring digital artery flow-through flaps.Functional exercise and physical therapy were done 3 weeks later.All cases had more than 12 months' fellowed-up periods.The sensibility testing,Questionnaire of the flap aesthetic satisfactory and TAM evaluations were all performed in all patients.All the results were measured and evaluated.Results All flaps survived completely and digit blood circulations were good in 7 patients.The flaps had good appearance and aesthetic satisfactory (100%).At 12 months after operations,the pain and touch perception reinnervated until 6 months and two-point discrimination testing were 6.1 to 9.6 mm,mean was (7.1 ± 1.3) mm,and the flap sensibility assessment were S3 * and TAM evaluation ratio were 0.81 ±0.16.Conclution Neighboring digital artery flap ideally suited as a thin and pliable flow-through flap in digital replantation/revascularization.It is helpful for salvage of the ischemic fingers after injury with skin and arteries defects.