1.Effects of Sanhuangtangshenkang particles on expressions of TNF-αand IL-6 in bone tissue of T2DM rats
Guan WANG ; Jingyi WANG ; Yue XI
Tianjin Medical Journal 2015;(11):1292-1295
Objective To observe the effects of Sanhuangtangshenkang particles on the expression levels of tumor ne?crosis factor (TNF)-α, interleukin (IL)-6 in bone tissue of type 2 diabetic (T2DM) rat model. Methods There were seven groups of rats in this study. Ten female Wistar rats were used as control. Ten rats were established for osteoporosis model, and fifty rats were established for diabetic model. Fifty diabetic model rats were further divided into model control group, tra?ditional Chinese medicine (TCM) prevention group (high-dose TCM group, low-dose TCM group) and Western medicine group, with 10 rats for each group. All rats were given the corresponding intervention for 20 weeks. Automatic biochemistry analyzer was used to determine fasting blood glucose (FBG). ELISA was used to detect serum TNF-αand IL-6. Dual-energy X-ray absorptiometry (DXA) was used to assess bone density. Real-time PCR was used to appraise the mRNA of TNF-αand IL-6 in bone tissue. Western blot assay was used to measure protein expressions of TNF-αand IL-6 in bone tissue. Re?sults Compared with osteoporosis model group, bone density was significantly increased, serum levels of TNF-αand IL-6, the mRNA and protein expression level of IL-6 were significantly decreased in bone tissue of TCM groups and Western medi?cine group (P<0.05). The expression levels of TNF-αmRNA and protein were significantly decreased in bone tissue of in high-dose TCM prevention group and Western medicine group (P<0.05). Compared with the diabetic model group, the se?rum levels of FBG, TNF-αand IL-6 were significantly decreased in TCM groups and Western medicine group (P<0.05). The expression levels of TNF-αmRNA and protein were significantly decreased in high-dose TCM prevention group and Western medicine group (P<0.05). The mRNA and protein expression levels of IL-6 were significantly decreased in low-dose TCM prevention group and Western medicine group (P<0.05). Conclusion The expression levels of TNF-αand IL-6 are increased in serum and bone tissue of diabetic rats. Sanhuangtangshenkang particles can improve the inflammatorystate to play prevention and therapeutic effect on diabetic rats.
2.Analysis on the influencing factors of satisfaction status of patients in the Community Health Service Center
Zhibo GUAN ; Qingshan SUN ; Shuhua XI
Chinese Journal of Primary Medicine and Pharmacy 2017;24(1):36-40
Objective To investigate the satisfaction status of patients in the Community Health Service Center,and to provide the basis data for reform and development of the Community Health Service Center in future. Methods 481 patients and 9 Community Health Service Center in Shenyang were randomly recruited in this study by the cluster sampling survey.Several trained interviewers used questionnaires to collect requisite information.Results In the all community health professionals,including technical level,therapeutic efficacy,preventive health service, service attitude and requirement satiation,the trust status of patients was the highest,the rates of satisfaction and very satisfaction got to 92.8%.The satisfaction status for preventive health service was the lowest,only 67.7%.In analysis on influencing factors,medical insurance of patients was the important factor for their satisfaction status.There were significant differences in technical level (χ2 =22.61 ,P <0.01 ),therapeutic efficacy (χ2 =21 .52,P <0.01 ), preventive health service (χ2 =1 4.35,P <0.05),service attitude (χ2 =22.43,P <0.01 ),requirement satiation (χ2 =22.30,P <0.01 ),the trust status of patients (χ2 =1 7.81 ,P <0.01 ).In addition,age and education degree also were the factors on the satisfaction status of patients.There were significant differences among different age group in therapeutic efficacy (χ2 =33.38,P <0.01 ),preventive health service (χ2 =24.43,P <0.05 ),requirement satiation (χ2 =26.55,P <0.01 ),the trust status of patients (χ2 =22.39,P <0.05 ).There were significant differences among different education degree in therapeutic efficacy (χ2 =1 5.79,P <0.05),service attitude (χ2 =1 4.63,P <0.05)and the trust status of patients (χ2 =1 3.50,P <0.05).Conclusion The satisfaction status of patients for service attitude is the highest and age,education degree and medical insurance of patients are the important factors influencing satisfaction status of patients.
3.The observation on apoptosis from vitrectomy specimens of proliferative vitreoretinopathy
Hua YANG ; Hongbing GUAN ; Xi ZHANG
Chinese Journal of Ocular Fundus Diseases 1999;0(02):-
urpose To investigate apoptosis in vitrectomy specimens of proliferative vitreoretinopathy. Methods Vitrectomy specimens from 60 cases of different classes of proliferative vitreoretinopathy were studied by TdTmediated dUTP nick end labelling(TUNEL)method. Results The characteristic change of apoptosis was observed in all vitrectomy specimens.The amount of apoptotic nonpigmentary cell is gradually decreasing along with the development of proliferative vitreoretinopathy,and apoptotic pigmentary cells are observed. Conclusion There are different kinds of apoptosis cell in vitrectomy specimens of proliferative vitreoretinopathy.It is suggested that apoptosis might be one of the important mechanisms of regulating the degree in proliferative vitreoretinopathy.
4.A NEW METHOD OF NON-INVASIVE DETERMINATION OF CARDIAC OUTPUT BY DynaPulse: COMPARISON WITH DIRECT FICK METHOD AND DOPPLER ECHOCARDIOGRAPHY
Guorong XI ; Tiande LI ; Guan ZHI
Medical Journal of Chinese People's Liberation Army 1981;0(04):-
DynaPulse, a newly developed noninvasive apparatus, is valuable in assessing blood pressure, cardiac output and vascular compliance. The purpose of the present study was to evaluate the validity of cardiac output measurement using DynaPulse in patients, compared with echocardiography and Fick method. Forty five inpatients underwent cardiac output measurement using DynaPulse (CO DP ) and Doppler echocardiography (CO DE ), cardiac output was measured with DynaPulse (CO DP ) and Fick method (CO FM ) in additional 26 patients. A good correlation was found between CO DP and CO DE ( r =0 76). There was an acceptable correlation between CO DP and CO FM ( r =0 61). DynaPulse can provide a noninvasive, clinically useful estimation of cardiac output.
5.Application of flexible laryngeal mask airway in oral & maxillofacial day surgery
Na GE ; Ming GUAN ; Xi LI ; Shuai LI ; Enbo WANG
Journal of Peking University(Health Sciences) 2015;47(6):1010-1014
Objective:To access the feasibility and safety of application of flexible laryngeal mask air-way ( FLMA) in oral&maxillofacial day surgery. Methods:Retrospective study was conducted of 40 oral& maxillofacial day surgery patients (3 to 61 years of age) using FLMA under general anaesthesia in De-partment of Oral & Maxillofacial Surgery, Peking University School and Hospital of Stomatology. All the patients were with American Society of Anesthesiologists ( ASA ) physical status Ⅰ -Ⅱ, including 19 males and 21 females. The patients' vital signs were recorded at five different time points:baseline before anesthesia ( T0 ) , time right after the FLMA insertion ( T1 ) , time at incision ( T2 ) , 15 min after incision ( T3 ) and time at the end of the operation ( T4 ) . The first attempted FLMA insertion successful rate and the number of timed of changing to endotracheal intubation were recorded. During operation, frequencies of movement, hypoxia and obstruction of airway were noted and the operation time, anesthesia time, time from the end of the operation to extubation, movement and coughing following extubation and sore throat within 24 h were taken down. Operation-related complications of bleeding, hematoma and injury of local nerves were recorded within 24 h as well. Results:The operations of all the 40 patients were successfully done under general anaesthesia. The 36 ( 90%, 36/40 ) patients using FLMA successfully were under steady process, including 16 males and 20 females. The first attempted successful rate of FLMA insertion was 80% (32/40), and the second 50% (4/8). Three out of the 4 failed FLMA patients were changed to endotracheal intubation after the second attempt failed. The other patient was changed to endotracheal intubation before operation because of leak. The average operation time was (46. 58 ± 22. 57) min, the anesthesia time was ( 77 . 97 ± 26 . 82 ) min and the time from the end of operation to extubation was (8. 31 ± 3. 33) min. All the patients were recorded without obvious body movement during the operation procedure. There were 4 patients (11. 11%, 4/36) with slight body movement during extubation. The incidence of sore throat was 13. 89% (5/36) within 24 h postoperatively. There were no complications of bleeding, hematoma and injury of local nerves. The vital signs of baseline T0 were significantly different from those at other time points T1, T2, T3, and T4 (P<0. 01). As to the hearts rate after anesthesia, the values at T1, T2, T3 and T4 for two-two comparison, there was no statistical difference (P>0. 05). As to the values of systolic blood pressure and diastolic blood pressure after anesthesia at T1 and T4 , T2 and T3, for two-two comparison, there was no statistical difference (P>0. 05). As to the respiratory rate from the start of the surgery, the values at T2, T3 and T4 showed no statistical difference (P>0. 05). Conclusion:Flexible laryngeal mask airway is a supraglottic airway management method. It is suitable and safe for securing the airway in oral & maxillofacial day surgery. The advantages of fewer haemody-namic changes and postoperative complications are confirmed.
6.The regulation of adenovirus type 36 infection and progranulin expression in Uygur obese patients
Xi CHANG ; Yi JIAO ; Jianfei LU ; Yaqun GUAN
Journal of Xi'an Jiaotong University(Medical Sciences) 2015;(2):219-224
ABSTRACT:Objective To investigate the regulation of adenovirus type 36 infection on precursor protein particles progranulin expression in Uygur obese patients.Methods Based on the diagnostic criteria of obesity,the samples were divided into obese group and non-obese group.Serum neutralization test was used to detect the antibody of Ad36.The progranulin mRNA expressions in abdominal omental and subcutaneous adipose tissues were detected by real-time quantitative PCR.ELISA method was used to determine serum progranulin protein levels. CD68 protein expression of macrophage was detected by immunohistochemistry. Results ① In the Uygur population of our study,compared with that in the non-obese group (38/1 1 7,32.5%),the number of obese patients (54/1 1 5,47.0%)infected with Ad36 was significantly higher than that in non-obese group (P <0.05 ).② Serum progranulin was significantly increased in the Ad36-infected obese group (408.45±1 56.92)than in non-obese group (326.1 1±1 58.60)(P <0.05).The mRNA expression of progranulin did not differ between the two groups.③ The macrophage infiltration was significantly higher in the Ad36-infected obese group (14 730.1 6 ± 2 227.39 )than in non-obese group (10 786.50 ± 2 772.80 )(P < 0.05 ).Conclusion Ad36 infection may be associated with the occurrence of obesity in Uygur population,and adenovirus type 36 infection may regulate the expression of serum progranulin at the protein level.
7.Design, manufacture and experimental analysis of cementless hip prosthesis in torsional force transmission
Bang PANG ; Qi WU ; Xiaodong GUAN ; Wenming XI
Chinese Journal of Tissue Engineering Research 2016;20(39):5794-5800
BACKGROUND:Human femur medul ary cavity has torsional anatomic structure. If the femur medul ary cavity’s torsional structure is copied to the stem of the prosthesis, the prosthesis wil transform the force loaded to torque between femur medul ary cavity and prosthesis stem, and the torque is transmitted to the proximal femur when the prosthesis is inserted in the medul ary cavity and load force on the prosthesis. OBJECTIVE:To optimize the force transmission of the proximal femur, and to avoid the stress shielding at the proximal end of the prosthesis. METHODS:We reconstructed a three-dimensional (3D) model of the femoral canal with the CT images of specimen femur and took the 3D model as the design model for prosthesis stem. The customized stem model and the proximal model of standard prosthesis could be put together to form customized prosthesis. We took advantage of robot grinding technology to manufacture the customized prosthesis, and matched it with specimen femur canal. Finite element analysis simulation and experimental methods were used to analyze the relationship between the loading force on the prosthesis and the micromotion of proximal end of the prosthesis. RESULTS AND CONCLUSION:The simulation and experimental results showed that the torsional structure matching by femoral canal and stem could effectively transmit the force on the prosthesis to the proximal end of the prosthesis in the form of torque. The torsional fretting of the proximal end of the prosthesis was related to the movement of the handle body. However, stem micromotion can be control ed by varying the matching size between stem and medul ary cavity.
8.Effect of Xiaoying Decoction on Changes of Regulatory T Cells and Th17 Cells in Experimental Autoimmune Thyroiditis Rats
Xi GUAN ; Liang ZHAO ; Li LIU ; Desheng XU
Herald of Medicine 2017;36(2):136-140
Objective To explore the mechanism of Xiaoying decoction on experimental autoimmune thyroiditis (EAT) rats in view of regulatory T cells and Th17 cells.Methods SD rats were divided into five groups,normal control group,model control group,tripterygium glycoside group,Xiaoying decoction low and high dose groups.Except for normal control group,the other groups were established the model of EAT.Rats in the Xiaoying decoction low,and high dose groups were given Xiaoying decoction of 17.24 and 68.95 g·kg-1;rats in the tripterygium glycoside group were given tripterygium glycoside 6.25 mg·kg-1.The serum free triiodothyronine(FT3),free thyrocyte(FT4) and thyroglobulin antibody were detected by RIA method.Thyrocyte morphology was observed under optical microscope.The expression levels of Foxp3 mRNA and IL-17 mRNA were detected by real-time PCR.The changes of Treg cells and Th17 cells were analyzed by flow cytometry.Results Compared with the normal control group,FT3,FT4 and TgAb were increased in the model control group (P <0.01,P <0.01,P <0.05).Compared with the model control group,FT3,FT4 and TgAb were decreased in tripterygium glycoside group and Xiaoying decoction high dose group (P < 0.05).The infiltration score in the normal control group,model control group,tripterygium glycoside group,Xiaoying decoction low and high dose groups were 0,4,4,3.5,2.Compared with model control group,the infiltration was improved (P <0.01).Foxp3 mRNA expression was decreased while IL-17 mRNA increased in the model control group as compared with the normal control group(P < 0.01).In contrast,the expression of Foxp3 mRNA was increased and IL-17 mRNA expression was decreased in Xiaoying decoction low and high dose groups,tripterygium glycoside group as compared with the model control group (P <0.05).Compared with the normal control group,rats in the model control group had fewer Treg cells and more Th17 cells (P <0.01).Compared with the model control group,the percentage of Treg cells was elevated and Th17 cells was reduced in tripterygium glycoside group and Xiaoying decoction high dose groups (P < 0.01).Conclusion The therapeutic mechanism of Xiaoying decoction on EAT rats may be related to changing the percentage of regulatory T cells and Th17 cells with up-regulating the expression of Foxp3 mRNA and down-regulating the expression of IL17mRNA.
9.Effect of Chinese herbal medicine 1023 Recipe in blocking cancer transformation of experimental precancerous lesion and its mechanism
Zuoliang CHEN ; Yuqin GUAN ; Xi CHEN ; Xiaoling CHEN ; Jinchun CHEN
Journal of Integrative Medicine 2004;2(4):281-4
OBJECTIVE: To study the effect of Chinese herbal medicine 1023 Recipe in blocking cancer transformation of experimental oral precancerous lesion and its mechanism. METHODS: We treated the experimental oral precancerous lesion in hamster's cheek pouch using 1023 Recipe (consisting of Radix Astragali, Gynostemma Pentaphyllum, Rhizoma Chuanxiong and selenium-rich green tea) for 6 weeks, and observed its effect in blocking cancer transformation, detected 2 kinds of agglutinin receptors (receptors of wheat germ agglutinin and Ricinus communis agglutinin) in the mucosa of the hamster's cheek pouch. RESULTS: The rate of cancer transformation in 1023 Recipe treated group was lower than that in the control group without treatment (P<0.05). Agglutinin receptors in the two groups were different significantly. CONCLUSION: 1023 Recipe is effective in treating hyperplasia, and can prevent its cancer transformation. The mechanism may be that 1023 Recipe can induce precancerous lesions to differentiate into normal tissues.
10. Research progress on pharmacological effects of p-coumaric acid
Chinese Traditional and Herbal Drugs 2018;49(17):4162-4170
p-coumaric acid is mainly found in fruits, vegetables, grains, and fungi, and is also abundant in Chinese herbal medicines. The pharmacological effects of p-coumaric acid has anti-oxidant, anti-inflammatory, immunomodulatory, antitumor effects, antiplatelet aggregation, cardiovascular protection, prevention and improvement of diabetes, and neuroprotection, while the anti-oxidant activities of p-coumaric acid is the important basis of other pharmacological effects. In addition, p-coumaric acid has a certain inhibitory effect on bacteria, and also can inhibit melanin formation and delay skin aging. This paper reviews the main pharmacological effects of p-coumaric acid and provides reference for the development of both medicinal and food resources.