1.Comparative study on vascularization of two different three-dimensional structure ?-TCP biomaterials in vivo
Feng BAI ; Zhen WANG ; Aimin LI
Orthopedic Journal of China 2006;0(06):-
[Objective] To study the role of scaffold internal three dimensional structure of on vascularization of ?-TCP biomaterials in vivo.[Method]Twenty four adult rabbits were selected for operation.Two different three-dimensional structure ?-TCP biomaterials(wafer ?-TCP,the pore diameter was from 400 ?m to 500 ?m,the pore inter-connection diameter was 120 ?m;granulation ?-TCP,the particle diameter was from 100 ?m to 200 ?m)were implanted separately into fascia lumbodorsalis of every rabbit.The specimens were harvested in 1,2,4,8 weeks after surgery for histology,scanning electronic microscope(SEM)and SPECT studies in order to observe the vascularization of two different structure ?-TCP biomaterials in vivo.[Result]The biocompatibility of two different ?-TCP biomaterials was favourable.Only a few of immature blood capillaries were detected in some peripheral pores of two different biomaterials in one week after surgery.In four weeks of implantation,the result of histology indicated that the wafer artificial bone had vascularized completely.The number and lumens of blood vessel had increased.The peripheral blood vessel had been mature,showing vascularization crest-time.In eight weeks after sugery,there was no more increase of the number of blood vessel,while the lumens of blood vessel had increased.The mature capillaries were observed by chance.To compare with the wafer artificial bone,the vas cularization rate of the granulation artificial bone biomaterials was slower,and the number of blood vessel was less.On the other hand,the smaller lumens diameter and the infant structure existed in most of blood capillaries.Many blood vessels were not mature in four weeks,the vascular occlusion in some pores was detected.[Conclusion]The pore interconnection pathway in scaffolds is a key factor for vascularization.In other words,the higher density of pore interconnection pathway can induct more complete vascularization in scaffolds,and the diameter can restrict the lumens of blood vessel diameter.
2.Clinical observation of mazoplasia effect treated by chinese and western medicine combined by acupuncture point therapy
Xu ZHEN ; Chunhui BAI ; Guanxiu WANG
Chongqing Medicine 2013;(24):2864-2865
Objective To observe clinical effect of mazoplasia treated by chinese and western medicine combined by acupuncture point therapy .Methods The 178 patients were divided into two groups ,one of which was the treatment group treated by oral pro-prietary Chinese medicine in combination with special Chinese and western medicine and post hole therapy ,the other was control group only treated by oral proprietary Chinese medicine .Results The cure rate ,effective rate and recurrence reducing rate of treat-ment group were better than that of control group(P<0 .05) .Conclusion According to the principle of traditional medical treat-ment based on syndrome differentiation ,the new therapy of this article mix together medicine ,acupuncture and western medicine treatment for the treatment of mazoplasia and gains good achievement .The method is simple with an obvious effect and has good clinical application value in the future .
3. Application of osmotic pump technology in Chinese materia medica preparation
Chinese Traditional and Herbal Drugs 2016;47(9):1619-1624
As a representative of controlled release preparations, osmotic pump has become a hot spot in the new preparation researches of Chinese materia medica (CMM). This paper reviewed CMM osmotic pump preparation from the following aspects: structure type of osmotic pump preparation, adjuncts of osmotic pump preparation of CMM, in vivo evaluation, and problems existing currently, which aimed to provide ideas and methods for the development of CMM osmotic pump preparation.
4.Minimal invasive surgery combined with ventriculoscope for the treatment of basal ganglia hemorrhage
Yonggang LIU ; Jiangfeng LIU ; Kai BAI ; Zhen CHEN ; Weijun QIAO
Journal of Regional Anatomy and Operative Surgery 2016;25(10):754-757
Objective To investigate the effectiveness and safety of minimal invasive surgery combined with ventriculoscope for the treatment of basal ganglia hemorrhage.Methods From June 2014 to June 2015 there were 57 patients with basal ganglia hemorrhage were selected into this study.These patients were signed into the minimal invasive surgery combined with ventriculoscope group and the craniotomy group according to the methods of surgery they received.And the clinical outcomes of the two groups were compared.Results Compared with the craniotomy group,patients in the minimal invasive surgery combined with ventriculoscope group got a significantly lower Glasgow coma scale at 7 days,14 days and 28 days after the operation (P =0.02,0.04,0.04);the hospital stays were significantly reduced in the minimal invasive surgery combined with ventriculoscope group [(21.45 ±5.67)d vs.(25.67 ±7.45)d,P =0.02];and the operation time were significantly reduced as well [(134.45 ±21.11)min vs.(178.65 ±45.32)min,P =0.000)].There was no significant difference in intra-cranial pressure,rate of hematoma clearance,rate of organ functional failure,rate of re-bleeding and mortality 28 days after operation (P >0.05).Conclusion The minimal invasive surgery combined with ventriculoscope is effective and safe for the treatment of basal ganglia hemorrhage,which is worthy of popularization.
5.Study on quality standard of Sishen Pill
Pan ZHEN ; Limin ZHANG ; Zhibao WANG ; Xuemei BAI
Chinese Traditional Patent Medicine 1992;0(09):-
AIM: To establish HPLC fingerprint of Sishen Pill and a determination of main component of Sishen Pills(Fructus Evodiae, Semen Myristicae, Fructus Psoraleae, etc.) by HPLC. METHODS: The samples were extracted with the solvent methanol. The separation was performed on YWG-C 18(4.6mm?250mm, 10?m) column with water- methanol-acetonitrile as a mobile phase gradient elution. The flow rate was 1.0mL?min -1, the column temperature was at 30℃ and the wavelength of UV detector was at 225nm. RESULTS: There are 21 higher peaks and 12 marker peaks in the fingerprint of eight batches of samples. For evodiamine, the regression equation was Y=147.37X+1186.32, r=0.9999, the liner range was from 5 to 1000?g?mL -1 and the recovery was 99.83%. For rutaecarpin, the regression equation was Y=101.19X+279.81, r= 0.9999, the liner range was from 4.5 to 900?g?mL -1. The recovery was 98.72%. CONCLUSION: The quality standard of Sishen Pill was established firstly. It can be used for quality cantrol of Sishen Pill.
6.Nosocomial Infections among Patients with Multiple Myeloma
Yanxia BAI ; Minqiu LU ; Zhen LI ; Xingguo ZUO ; Mengqing WU
Chinese Journal of Nosocomiology 2006;0(09):-
OBJECTIVE To clarify the features of nosocomial infections for patients with multiple myeloma(MM).METHODS One hundred and seventy eight cases of MM treated in our hospital from Oct 1982 to Dec 2006 were analyzed retrospectively.RESULTS Eighty five patients(47.8%) suffered from nosocomial infections.The nosocomial infection took place more frequently on respiratory tract.Elder,granulocytopenia,hypoproteinemia,severe anemia,and diabetes were the risk factors.Totally 91 pathogens were isolated.Gram-negative bacilli accounted for 45.1%,and were the major pathogens.Fungi accounted for 37.4% and Gram-positives accounted for 17.6%.The ESBLs producing strains accounted for 31.6% in Klebsiella pneumoniae and Escherichia coli.Vancomycin resistant strains were found.The top one of fungi presented organism was the Candida albicans.CONCLUSIONS Nosocomial infections for patients with multiple myeloma has a high incidence.There are many risk factors.The resistance of commonly encountered bacteria to antimicrobial agents is a serious problem.Immunity protection and the rational use of antimicrobial agents should be emphasized.
7.An investigation of the source and the nutritional status of iodine after termination of iodized salt supply in high water iodine areas in Shanxi province
Xiang-dong, ZHANG ; Qing-zhen, JIA ; Bai-suo, GUO
Chinese Journal of Endemiology 2013;(2):196-200
Objective To study the changes of iodine source and the nutritional status of iodine after termination of iodized salt supply in the areas with different water iodine concentrations in Shanxi province,in order to provide scientific bases for developing strategies on control and prevention of iodine deficiency disorders,and to study the cut-off value of water iodine level where iodized salt supply should be stopped.Methods In 2010 in Shanxi province,6 villages with 100% of non-iodized salt consumption rate were selected as the survey spots based on the iodine concentration in drinking water of 0-,50-,100-,150-,300-,≥500 μg/L.Villages'iodized salt supply was terminated thoroughly.In each village,20 children aged 8 to 10 were selected.At the same time,women of childbearing age 18 to 50 years old and adult men aged 18 to 60 were selected from the same families as the children.Diet surveys were conducted by the method of 3 days recall on all subjects.Drinking water samples,staple foods,supplementary foods and urinary samples of all subjects were collected and the iodine concentration was determined by arsenic-cerium catalytic spectrophotometry.Results ①In the villages of water iodine 25.9,70.6 μg/L,the medians urinary iodine of children,women and men were all ranged from 100 to 199 μg/L,which meant their iodine nutrition levels were appropriate.In the village of water iodine 109.0 μg/L,the medians urinary iodine of children,women and men were all ranged from 200 to 299 μg/L,which meant their iodine nutrition levels were more than appropriate.In the villages of water iodine 225.8,430.0,581.2 μg/L,the medians urinary iodine of children,women and men were all ≥ 300 μg/L,which meant their iodine nutrition levels were too high.②)In all the 6 villages,the intaking amount of iodine met and exceeded the standard recommended intake of dietary iodine by ICCIDD/UNICEF/WHO (8 to 10-year-old children ≥ 120 μg/d,women of childbearing age and adult men ≥ 150 μg/d).But in the village of water iodine 581.2 μg/L,the iodine intake was exceeded the daily maximum safe intake (children aged 8 to 10 ≤800 μg/d,women of childbearing age and adult man ≤ 1000 μg/d).③The amount of iodine ingestion from drinking water was increased with the water content of iodine.When water iodine exceeded 100 μg/L,the amount of iodine ingestion from drinking water was higher than from food intaking,and became a main resource of iodine in the human body.Conclusions In the counties of iodine concentration in drinking water above 100 μg/L in high iodine areas of Shanxi province,the water iodine becomes the most important source of iodine,and iodine nutritional level is more than appropriate or possible excess.It is recommended that in areas of high water iodine of Shanxi province,the standard cut-point of water iodine value is set to 100 μg/L.
8.Effects of different dose tranexamic acid in fibrinolysis during liver transplantation
Zhen CHEN ; Kunhe LI ; Junying GUO ; Liangcan XIAO ; Xue BAI
The Journal of Practical Medicine 2015;(17):2877-2880
Objective To investigate the effects of different dose of tranexamic acid in fibrinolysis during liver transplantation. Methods Sixty ASA Ⅱ~ Ⅳ liver transplant recipients, were randomly, double-blind assigned to one of 3 groups (n = 20): group control (group C), group tranexamic acid 1 (group T1) and group tranexamic acid 2 (group T2). The patients in group C received a loading dose of normal saline 10 mL, then continued infuse normal saline at 20 mL/h until neohepatic phase 120 min, while in other two groups, patients received a loading dose of tranexamic acid 1 g, totally 10 mL, followed by continuous infusion at 10 mg/(kg·h) in group T1 or 20 mg/(kg·h) in group T2 until neohepatic phase 120 min. Prothrombin time, fibrinogen, fibrin degradation product and D-dimers were measured before operation (T0), 120 min after the skin incision (T1), nonhepatic phase 30 min (T2), neohepatic phase 120 min (T3). Blood loss, fresh frozen plasma dosage, fibrinogen dosage and thromboembolic events were recorded. Results The plasma concentration of fibrin degradation product and plasma concentration of D-dimers were different in the 3 groups, group T2< group T1
9.Neonatal Crohn's disease in a case.
Min-li ZHU ; Zhen-lang LIN ; Bai-wei WU
Chinese Journal of Pediatrics 2010;48(6):474-475
10.Assessment of efifcacy of GnRH analogs by LHRH stimulation test in children with central precocious puberty
Xiding CAI ; Bei ZHU ; Zhen LI ; Min BAI ; Yongnian SHEN
Journal of Clinical Pediatrics 2013;(12):1121-1124
Objective To evaluate and monitor the efifcacy of GnRH analogs (GnRHa) therapy. Methods Thirty girls with central precocious puberty diagnosied by LHRH stimulation test were treated with GnRHa for 6-24 months. The LHRH stimula-tion test were performed again at 3 months after initiation of therapy and then every 6 months during treatment. The relationship of peark LH and clinical suppressing pubertal (including Turner stage, bone age, grwoth speed) were compared. The monitor effect of peak LH to efifcacy of GnRHa were eveluated. Results Ninety LHRH stimulation tests were performed, only 7 cases were found to have clinical pubertal development. After 6 months treatment, the base LH level of thirty girls (0.48±0.20) IU/L was signiifcantly lower than that before the treatment (0.75±0.35 IU/L) (P=0.000). The correlation coefifcient between base LH and peak LH was 0.62. The best correlation between clinical suppressing pubertal and LHRH stimulation test was achieved when peak LH was less than 2 IU/L (85.7%sensitivity, 100%speciifcity). Conclusions Base LH value can be used in preliminary as-sessment of the efifcacy of GnRHa therapy for girls with central precocious puberty. The peak LH less than 2 IU/L can be as the indicator of treatment efifcacy.