1.Radiographic Index Analysis of the Cervical Spine Curvature and the Range of Flexion-extension
Junsheng MAO ; Huayi ZHANG ; Yuhua LU
Journal of Chinese Physician 2001;0(02):-
Objective To provide a new method for measuring cervical spine curvature and the range of flexion-extension and to analyse the radiographic features of the cervical degeneration.Methods The study included 78 patients with cervical spondylosis,90 patients with neck symptoms and 86 normal volunteers.The three groups were compared with each other by the indexes of the cervical spine curvature and the range of flexion-extension.Results There was significantly difference among three groups in the cervical vertebrae lordosis at neutral position.The range of flexion-extension of cervical spondylosis in the patients was smaller than that of the normal volunteers.Conclusions The index method can accurately depict the cervical spine curvature and the range of flexion-extension.There is definitive order in symptom appearance,alterations of physiologic curvature and flexion-extension in the cervical degeneration.
2.Observation of in Vitro Antibacterial Activity of Gymnema sylvestre Extractant
Yuhua HU ; Jianrong LU ; Xihui ZHU
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(10):-
Objective To evaluate invitro antibacterial activity of Gymnema sylvestre extractant.Methods The antibacterial activity of Gymnema sylvestre extractant against staphyloccus aureus,bacillus coli,bacillus proteus,bacillus aeruginosus was detected by agar dilution method.Results The minimum inhibitory concentration were 0.65,1.25,1.25,2.5 mg/mL respectively.Conclusion Gymnema sylvestre extractant had strong antibacterial activity against various bacteria.
3.HCMV inactivation of blood products by methylene blue photochemical treatment
Ping LU ; Bing LING ; Yuhua JI
Chinese Journal of Blood Transfusion 1988;0(04):-
Objective To observe the effects of methylene blue photochemical(MB-P) inactivation of human cytomegalovirus in blood products.Methods Plasma and red blood cell suspensions containing 10% HCMV and 5?mol/L MB were illuminated by fluorescent light of 38000 Lux for 1 hour, HCMV was used as model viruses for validation of virus inactivation.Results The 50% tissue culture infective dose (TCID_ 50 ) contained in plasma and red blood cell suspensions decreased by 4~6 times.Conclusion MB-P treatment is effective in inactivating the infectivity of HCMV in plasma and red blood cell suspension.
4.Variable Selection by Orthogonal Descriptors and Prediction of Rf Value of Phenol and Aniline Derivatives
Wenjun ZHANG ; Lu XU ; Yuhua QI
Chinese Journal of Analytical Chemistry 2001;29(2):178-181
Orthogonal descriptors is a viable method for variable selection, but this method strongly depend on the orthogonalisation ordering of the descriptors. In this paper, we compared the different methods used for order the descriptors. It showed that better results could be achieved with the use of backward elimination ordering. We predieted Rf value of phenol and aniline derivatives by this method, and compared it with classical algorithms such as forward selection, backward elimination, and stepwise procedure. Some interesting hints were obtained.
5.Comparative studies of pharmacologic effects between Famotidine, Ranitidine and Cimetidine
Xinfang LI ; Jinsheng LU ; Yuhua HUANG
Chinese Pharmacological Bulletin 1987;0(03):-
Famotidine ( Fam ) antagonized the effects of histamine on guinea pig atria and rat uteri MI vitro non-competitively,however the antagonisms of Ranitidine(Ran) and Cimetidine (Cim ) on hoistamine were competitive, their pA2 were 6. 24, 5. 16 and 4. 08 for guinea pig atria , 8. 26, 7. 22 and 6. 17 for rat uteri respectively. They reduced gastric secretion of acid and pepsin of pylorus ligated rats in dose-related manner, inhibited gastric secretion stimulated byhistamine, prevented the acute gastric lesion from stress, indomethacin and histamine, and enhanced the healing process of chronic gastirc ulcerinduced by acetic acid in rats. Moreover, Fam was much more potent than Ran (6~8 times) and Cim(30 - 40 times). Besides,Cim increased hypnotic effect of phenobartal, but Ran and Fam had no or Ittile such effects.
6.In vitro co-culture induced mesenchymal stem cells differentiate to islet cell
Haoliang SHEN ; Zhiwei WANG ; Mingyan ZHU ; Xiangjun FAN ; Yuhua LU
Chinese Journal of Pancreatology 2008;08(6):397-400
Objective To observe the effects of differentiation of mature islet cells of mice on marrowmesenchymal stem cells (mMSCs). To provide transplant source for islet cell transplantation in the treatment of diabetes. Methods The culture, isolation and passage of mMSCs was performed by using patch wall, cell shape was observed by confocal microscope, and flow cytometry analysis was used to determine their biological characteristics. The type Ⅳ collagenase was injected into common bile duct to digest the pancreas, and then gradient centrifugation was used to isolate islet cells. The transwell co-culture system was used for third generation of mMSCs and isolated islet cells, then inversion microscope was used to observe the cell growth and morphological changes, immunochemistry methods was applied to detect the expression of insulin in mMSCs, and insulin release test was performed to determine the secretion of insulin. The control group consisted of cultured mMSCs alone. Results The cells from mouse bone marrow were found to be in long spindle shape with large volume after 48 hours in culture. One week later the cells grew in the form of colony with serial subcultivation. The cell surface molecules including Sca-l, CD29, CD44, CD105 were positive with high level of expression;while the cell surface molecules including CD34, CD45 were negative, all of these results confirmed that the ceils were mMSCs. After 7 days of coculture with mice islet cells, part of mMSCs cells were positively stained by insulin immunohistochemisty, the insulin secretion was (16.83±0. 15)μIU/ml.Conclusions After cocultured with islet cells, mMSCs isolated from mouse bone marrow could differentiate into islet like cells. These cells may be used in the islet cells transplantation in the treatment of diabetes, which provided a solution to the problems of donor-shortage and immunologic rejection.
7.Effect of simvastatin on ventricular remodeling in rats after myocardial infarction
Jinying ZHANG ; Xiang CHENG ; Yuhua LIAO ; Baojun LU
Chinese Journal of Geriatrics 2003;0(12):-
Objective To study the effect of simvastatin on improve ventricular remodeling in rats after myocardial infarction(MI). Methods The MI models of rat were constructed,and divided into three groups:(1)MI group(MI-C),only ligation of left anterior descending coronary artery(LAD);(2)Simvastatin group(MI-S),ligation of LAD and gavage with simvastatin 40 mg?kg~(-1)?d~(-1);(3)Sham group(sham),no ligation of LAD.Cardiac architecture and function were determined by the echocardiography.The TNF-? mRNA expression in infarction and non-infarction regions was measured by RT-PCR. TNF-? protein was determined by Western blot and immunohistochemical staining.Results The echocardiography showed that the left ventricular end-diastolic diameter(LVEDd,(7.5?0.4)mm versus(4.5?0.3)mm) significantly increased in MI-C group,compared with sham group.The fractional shortening(FS,(20.5?2.5)% versus(51.6?3.1)%) and ejection fraction(EF,(41.4?4.3)%versus(85.2?3.7)%)markedly decreased in MI-C group,while compared with sham group. Simvastatin obviously reduced left ventricle(LV) expansion and improved LV function(P
8.Early nutritional support for very low birth weight infants
Qianxue GU ; Hongbing GU ; Shuangshuang LI ; Chao LU ; Yuhua HU
Chinese Journal of Applied Clinical Pediatrics 2016;31(7):499-502
Objective To study the role of early intravenous nutrition given aggressively combined with early minimal feeding on very low birth weight infants (VLBWI),and to evaluate the clinical value of intestinal barrier protein and MicroRNA.Methods All of 62 cases of VLBWI admitted in NICU,the Maternal and Child Health Hospital of Nantong Affiliated to Nantong University from January 2006 to June 2014 were recruited.Sixty-two VLBWI were randomly divided into group A and group B.Thirty infants in group A were exposed to conventional intravenous nutrition.Thirty-two infants in group B were treated with early intravenous nutrition aggressively combined with early minimal feeding.The time of birth weight recovery,days with intravenous nutrition,hospital stay and complications were recorded.The liver and kidney functions,electrolytes,blood gas analysis were monitored.Enzyme-linked immunosorbent method was used to detect intestinal fatty acid binding protein (Ⅰ-FABP),an intestinal barrier protein in plasma.Infection related MicroRNA155 was detected with fluorescent quantitative polymerase chain reaction (RT-PCR).Results Group B was superior to group A in weight loss after birth [(13.70 ± 3.10) % vs (5.46 ± 2.64) %,P < 0.05],shorter recovery time of body weight [(12.20 ± 3.38) d vs (6.82 ± 3.20) d,P < 0.05],fewer days with intravenous nutrition [(29.62 ± 4.16) d vs (20.80 ± 3.20) d,P < 0.05] and shorter hospital stays [(44.60 ± 6.32) d vs (28.91 ± 4.36) d,P < 0.05].Compared with group A,the infants in group B had less complications,including hyperbilirubinemia (31.2% vs 56.7%),extrauterine growth retardation (34.3% vs 73.3%),cholestasis (6.2% vs 23.3%),feeding intolerance (15.6% vs 53.3%) and necrotizing enterocolitis (0 vs 16.7%) (all P < 0.05).Although Ⅰ-FABP had a higher plasma concentration in group A than that of group B [(9.083 ± 1.059) μg/L vs (7.563 ± 0.739) μg/L],the difference was not significant (t =1.190,P =0.076 4).However,the plasma levels of Ⅰ-FABP in infants with necrotizing enterocolitis were significantly higher than those of group B [(19.500 ± 3.510) μg/L vs (7.563 ±0.739) μg/L,t =5.231,P =0.035 0].The expression of MicroRNA155 in group A was markedly higher than that of group B (2-△△ct were 0.81 ± 0.12 and 0.24 ± 0.08,respectively,P < 0.05).Conclusions Giving aggressive intravenous nutrition early combined with early minimal feeding was safety and effective to VLBWI,which was of benefit to their growth and development,reducing complications and shorting hospital stays.The detection of intestinal barrier protein Ⅰ-FABP and MicroRNA155 is useful for monitoring feeding complications of VLBWI.
9.Uterine artery embolization for the treatment of uterine adenomyosis:comparison study of different embolic agents
Qunli YAO ; Jiandong LU ; Xiangrong XU ; Yuhua LIU ; Jianya ZHANG
Journal of Interventional Radiology 2015;(3):248-252
Objective To investigate the clinical effects and complications of uterine artery embolization (UAE) therapy using different embolic agents in treating uterine adenomyosis. Methods During 2004—2011, a total of 45 female patients with uterine adenomyosis were admmitted to authors’ hospital to receive uterine artery embolization therapy. The embolic agents used in the procedures included domestic iodized oil, sodium alginate microspheres and Embosphere microspheres. The patients were randomly divided into group A (n=15, using domestic iodized oil as embolic agent), Group B (n=13, using sodium alginate microspheres as embolic agent) and group C (n = 17, using Embosphere microspheres as embolic agent). After the treatment, all the patients were followed up for over 2 years, focusing on the observation of the clinical symptoms such dysmenorrheal, changes of MRI signs and severe complications. The results were analyzed and compared among the three groups. Results After UAE, the clinical symptoms such as the degree of dysmenorrhea, menstrual quantity, etc. were improved in all patients. Six months after UAE, the obvious remission rate of dysmenorrheal in group A, B and C was 33.3% (5/15), 30.8% (4/13) and 41.1%(7/17) respectively. Twelve months after UAE, MRI scanning showed that the uterine sizes in group A, B and C were reduced to 49.19%, 48.25% and 50.05% respectively. Follow-up examination at 24 months after UAE showed that recurrence of dysmenorrheal in group A, B and C was seen in 2, 4 and 2 cases respectively, and amenorrhea was seen in 2 cases of group A and one case in group C. Conclusion The use of domestic iodized oil, sodium alginate microspheres or Embosphere microspheres as embolic agents in performing super-selective uterine artery embolization for adenomyosis can effectively relieve the degree of dysmenorrheal, decrease the uterine size. In addition to ovarian dysfunction, the uterine cavity adhesion may be also a possible cause of amenorrhea occurring after UAE may. In order to ensure a similar clinical efficacy, the use of granular solid embolic agent is preferred as its safety is possibly higher than the liquid embolic agents.
10.Effect of rosuvastatin on white matter lesion in chronic hypertensive rats
Zheng LU ; Fan YUHUA ; Linlan FANG ; Ji XIAOTAN
Chinese Journal of Nervous and Mental Diseases 2015;45(2):92-97
Objective To investigate the potential effects of rosuvastatin on white matter lesion and spatial memo?ry function in chronic hypertensive rats. Methods Fourty-nine male Sprague-Dawley rats were randomly divided into sham-operation group, vehicle-treated group, and rosuvastatin-treated group (10 mg/kg).A model of stroke-prone reno?vascular hypertensive rat (RHRSP) was induced by using the two-kidney two clip method in the vehicle-treated group and the rosuvastatin-treated group. Blood pressure was monitored regularly. Morris water maze experiment was conduct?ed to assess spatial memory function. Luxol fast blue stanning was used to examine the degree of leukoaraiosis. Immuno?fluorescence and electron microscopy was used to detectβ-amyloid deposits. TUNEL staining was used to assess apopto?sis. Results The blood pressure of RHRSP increased progressively after operation.Blood pressure was significantly high?er in RHRSP than in sham-operation group (P<0.01). The escape latencies of the rosuvastatin-treated group were mark?edly shorter in RHRSP than in sham-operation group (P<0.01). The numbers of crossing hidden platform in the 3 groups of rats were 4.55±1.23, 1.00±0.80 and 3.79±0.95 times. There were significantly differences in numbers of crossing hid? den platform among three groups (P<0.01). Luxol fast blue stanning showed that the grading scores for WML were lower in the rosuvastatin-treated than in the vehicle-treated group (P<0.01). Rosuvastatin significantly decreased the burden of Aβdeposits(17.47±3.59 vs. 4.42±1.57,P<0.01)and the TUNEL+cells(37.84±4.73 vs. 14.42±2.43,P<0.01)in the fron?tal cortex when compared with the vehicle-treated group. Conclusions Rosuvastatin may ameliorate spatial memory func?tion through attenuation of white matter lesion, Aβdeposits and apoptosis .