3.Preparation and antibacterial activity of compound chitosan-compound Yizhihao-nanoparticles
Journal of Central South University(Medical Sciences) 2008;33(5):369-374
Objective To prepare chitosan (CS)-compound Yizhihao-nanoparticles (NP) and to investigate its antibacterial activity. Methods CS NPs were formed by the incorporation of CS and Na3PO4. CS-compound Yizhihao NPs were prepared by ion-cross-linking. The particle sizes and surface charges of CS NPs were determined by Malvern Zetasizer 1000-HAS and atomic force microscope (AFM), respectively. The antibacterial acitivity of CS-compound Yizhihao-NPs was studied in vitro and compared with that of compound Yizhihao powder. Results Malvern Zetasizer 1000-HAS and AFM demonstrated that the diameter of CS-compound Yizhihao NPs was (137.00±14.28)nm and CS NPs had (16.90±1.32)mV positive surface charges. The minimal inhibitory concentrations (MIC) of CS-compound Yizhihao NPs on Staphylococcus aureus,Pneumococcus,β-hemolytic streptococcus, and Escherichia coli were 1:32,1:32,1:16,and 1:2,respectively. The minimal bactericidal concentrations (MBC) of CS-compound Yizhihao-NPs on Staphylococcus aureus,Pneumococcus,β-hemolytic streptococcus, and Escherichia coli were 1:16,1:16,1:8, and 1:2,respectively. The antibacterial efficacy of CS-compound Yizhihao-NPs to Staphylococcus aureus,Pneumococcus,and β-hemolytic streptococcus had been improved significantly (P<0.05). Conclusion CS-compound Yizhihao-nanoparticles have obvious antibacterial activity to the Staphylococcus aureus,Pneumococcus,and β-hemolytic streptococcus,which lays the experimental foundation for new preparation of traditional Chinese medicine in future research.
4.Therapeutic Study on Scalp Acupuncture plus Body Acupuncture for Diarrhea-predominant Irritable Bowel Syndrome
Shanghai Journal of Acupuncture and Moxibustion 2016;35(4):405-407
Objective To observe the clinical efficacy of scalp acupuncture plus body acupuncture in treating diarrhea-predominant irritable bowel syndrome (D-IBS). Method Totally 122 D-IBS patients were randomized into a scalp acupuncture group (41 cases), a body acupuncture group (41 cases), and a combined group (40 cases). The scalp acupuncture group was intervened by acupuncture at the Stomach and Intestine Zones on the head; the body acupuncture group was by ordinary body acupuncture; the combined group was by both scalp acupuncture and body acupuncture. The symptom score of traditional Chinese medicine (TCM) was evaluated prior to the treatment, at the end of the first and second treatment courses, and after the whole intervention; the clinical efficacies were also compared among the three groups. Result The symptom scores of the combined group were significantly lower than that of the scalp acupuncture group and body acupuncture group respectively at the end of the second treatment course and after the whole intervention (P<0.05); after the whole intervention, the cured and markedly-effective rate was 62.5% in the combined group, significantly higher than 24.4% in the scalp acupuncture group and 29.3% in the body acupuncture group (P<0.05). Conclusion Scalp acupuncture plus body acupuncture can produce a satisfactory clinical efficacy in treating D-IBS, better than body acupuncture or scalp acupuncture alone; its advantages include rapid onset of action, significant effect, and reducing intestinal inflammation, etc.
5.The related factors of endometrial cancer induced by obesity
Journal of International Oncology 2015;(10):789-792
Large amounts of clinical studies and epidemiological data have confirmed that obesity is closely related to the development and progression of endometrial cancer.The mechanism of the endometrial cancer may be involved estrogen,insulin,insulin-like growth factor,leptin,adiponectin,resistin fat factor, inflammatory factors and so on.
6.The expression of focal adhesion kinase and Ki67 in invasive breast ductal carcinoma and their clinical significance
Chinese Journal of Immunology 1985;0(06):-
Objective:To investigate the expression of focal adhesion kinase(FAK) and Ki67 in the invasive breast ductal carcinoma tissues, seeking their relationship with tumor invasion and metastasis and to study the mechanisms for cell signaling transduction mediated by FAK in the carcinogenesis and progress of breast carcinoma.Methods:Tissues were obtained from 88 patients with invasive breast ductal carcinoma and 25 with breast ductal epithelial benign proliferative disease. The expression of FAK and Ki67 was examined by immunohistochemical technique(streptavidin peroxidase conjugate method, SP).Results:In 88 cases of invasive breast ductal carcinoma, the positive incidences of FAK was 68.2%(60/88), and the Ki67 proliferation index was 29.6%?22.9%, which distinguished apparently to those of the control group(P0.05). In breast carcinoma tissues, the expression of FAK was positively related to Ki67 proliferation index(P
7.Improve Cultural Construction to Enhance Hospital's Core Competitiveness
Chinese Medical Ethics 1995;0(03):-
The development of medical institutes needs not only marvelous hardware construction,but also software strength,such as the hospital culture,brand establishment,etc.Only by the persistent and coordinated development of hardware strength and software strength,can hospital's comprehensive strength and core competitiveness be effectively improved.To enhance hospital software strength,it is necessary to cultivate hospital culture with unique features,emphasize brand establishment,devise long-term development blueprint of medical institutes and activate hospital's potential for further development.
8.Observation of curative effect of external fixator combined with limited internal fixation in the treatment of complex ankle fractures
Zhirong SHENG ; Xiaoping ZHANG
Chinese Journal of Primary Medicine and Pharmacy 2017;24(10):1532-1535
Objective To observe the effect of external fixator combined with limited internal fixation in the treatment of complex ankle fractures.Methods According to the digital table,65 patients with complex ankle fracture were randomly divided into treatment group(33 cases) and control group(32 cases).The treatment group was treated with external fixator combined with limited internal fixation,the control group was treated with internal fixation.All patients were followed up for 5 to 20 months.The curative effect and incidence rate of complication of the two groups were observed.Results The excellent rate of the treatment group was 84.85%,which was higher than 62.50% of the control group,the difference was statistically significant(x2=4.20,P<0.05).The incidence rate of complications in the treatment group was 3.03%,which was lower than 18.75% of the control group,the difference was statistically significant(x2=4.18,P<0.05).Conclusion External fixator combined with limited internal fixation can effectively treat complex ankle fractures,the method can not only make patients satisfied with the reduction effect,but also the internal fixation complications such as infection are minimized,the clinical value is extremely high,it is worthy of wide application.
9.Nasal endoscopy in operations for vocal cord polyps under sustaining laryngoscope
Chinese Journal of Minimally Invasive Surgery 2001;0(04):-
Objective To explore the techniques and effects of excision of vocal cord polyps under sustaining laryngoscope. Medthods Nasal endoscopy was used to obtain a better exposure during excision of vocal cord polyps under sustaining laryngoscope. Results Out of the 128 cases, 100 cases (78 1%) were cured and 28 cases (21 9%) were improved. Among 50 cases of type Ⅰ polyps, 43 (86%) were cured and 7 (14%) improved; among 40 cases of type Ⅱ polyps, 38 (95%) were cured and 2 (5%) improved; among 38 cases of type Ⅲ, 19 (50%) were cured and 19 (50%) improved. The therapeutic effects in cases of type Ⅰ and Ⅱ polyps were significantly better than those in cases of type Ⅲ polyps ( ? 2=13 442 and 20 057; P =0 000). Follow up for 5 months ~ 4 years (mean, 2 years) found no recurrence and complications. Conclusions Application of nasal endoscopy in operations for vocal cord polyps under sustaining laryngoscope may reduce the invasion during operation, shorten the operation time, and avoid or minimize the occurrence of complications.
10.An intervention to reduce discrimination against people living with HIV/AIDS among medical students
Chinese Journal of AIDS & STD 2006;0(02):-
Objective To explore the effectiveness of short-term integrated intervention to reduce discrimination against people living with HIV/AIDS(PLWHA)among medical students.Methods A quasi-experimental survey was conducted.Two medical schools in Beijing,one as intervention group and the other as control group were selected by convenience sampling,from which 123 undergraduate students or interns of medical and nursing specialties were recruited,62 in the intervention group and 61 in the control group.The intervention group was provided with 13 hour long antidiscrimination intervention by increasing HIV/AIDS related knowledge,sympathy and skill in dealing with people living with HIV/AIDS,while the control group was deprived of any intervention.The attitude of the students in the 2 groups were assessed by questionnaire survey in 5 time points after the intervention.Results Compared with the control group,at 4 time points after the intervention students in the intervention group had less discrimination against PLWHA in general;and significantly less discrimination in dealing with them as patients(P