1.The characteristics of functional impairment in acute stroke patients in the early stage and their correlation with efficacy of rehabilitationintervention
Kai WANG ; Lei XU ; Weng-Yi ZHOU ;
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(06):-
Objective To explore the functional impairment characteristics of acute stroke patients and cor- relate them to the functional independence after rehabilitation therapy. Methods Seventy-nine inpatients with stroke were divided into hemorrhage group and infarct group according to their condition.They are assessed by using measures of ESS,MBI,MMSE,Sheikh,Fugl-Meyer Balance and Fugl-Meyer motor assessment before rehabilitation treatment.After 1 month of treatment,all the patients were evaluated again using FIM.Correlation analysis was con- ducted with all the parameters. Results It was found that patients in the hemorrhage group scored lower with MBI, Sheikh,Fugl-Meyer Balance and FIM than those in the infarct group (P
2.Imaging Manifestations of Benign and Malignant Solitary Fibrous Tumors
Yi SUN ; Lixiang XIE ; Chunfeng HU ; Kai XU
Chinese Journal of Medical Imaging 2015;(6):461-465
Purpose To analyze the imaging manifestations of solitary fibrous tumors (SFT) so as to improve its diagnosis. Materials and Methods The CT and MRI findings of 24 patients with SFT confirmed pathologically were analyzed retrospectively and compared respectively with their pathological results in terms of lesion's location, size, shape, density (signal), type of enhancement and relationship with the surrounding tissues. Seven patients underwent MRI scan, 5 were with enhanced scan; 17 patients were carried out plain CT scan and 11 were with enhanced CT scan. Results The lesions in the 23 cases were solid and 1 was solid and cystic. Through the imaging diagnosis, 20 cases were diagnosed as benign tumors, 2 cases were diagnosed as malignancies, and 2 benign tumors were misdiagnosed, which showed that the diagnose accordance rate was 91.7%(22/24). On plain CT scans, 5 lesions (maximum diameter<4 cm) showed homogeneous density; 7 cases (maximum diameter>5 cm) showed heterogeneous density, 4 of which had calcification and 7 had necrosis; the shapes were round-like or lobulated. On enhanced CT scans, 5 cases presented progressive enhancement pattern, 5 cases showed fast-in and slow-out pattern, 1 case showed slight enhancement pattern. On MRI scan, 4 cases of the solid part of tumors showed isointensity signals on T1WI and isointensity or slight hyperintensity signals on T2WI, 3 cases showed isointensity or low signals on T1WI and low, isointensity or slight hyperintensity signals on T2WI, and slight hyperintensity signal on DWI, the solid part of tumors were strongly enhanced. Two malignant tumors presented features like heterogeneous density, unclear boundary, invasive growth and progressive enhancement pattern. The pathological findings demonstrated that the tumor tissues mainly consisted of spindle cells with rich fibers and vessels. Conclusion The imaging findings of benign and malignant SFT have certain features, malignant SFT have invasive growth signs. The obvious progressive enhancement of solid component which shows isointensity and hyperintensity on T1WI or T2WI may be helpful in the diagnosis of SFT; however, the final diagnosis should be confirmed with histopathology.
3.The Anti-Inflammation Effect of Atorvastatin on Myocardial Hypertrophy Caused by Pressure Overload
Xue-Juan ZHANG ; Qing-Ke XU ; Kai TAN ; Yi-Ping GE ;
Chinese Journal of Hypertension 2006;0(11):-
Background A multitude of studies reported statins prevent the myocardial hypertrophy induced by pressure overload,but the mechanism is unclear.Objective To study the protective effect of atorvastatin on the myocardial hypertrophy caused by pressure overload and it's anti-inflammation effect.Methods Forty Wistar rats were randomized to untreated group(n=10),atorvastatin group(2 mg/kg?d,by gavage,n=10),sham op- eration group(n=10)and control group(n=10).Ventricular hypertrophy model was achieved by surgical con- stricting the abdominal aorta.All rats were sacrificed 8 weeks after the operation and the heart weight to body ratio,left ventricular weight to body ratio,and the size of cardiomyocyte were determined.The expressions of interleukin 18(IL-18)and cardiotrophin 1(CT-1)in the cadiocyte were assessed by reverse transcription polymer- ase chain reaction(RT-PCR).Results Compared with control group,SBP in myocardial hypertrophy group was significantly increased(174?9 vs control 112?15 mmHg,P
4.Molecular mechanism for berberine to improve insulin resistance in 3T3-L1 adipocytes
Ping YI ; Fu-Er LU ; Guang CHEN ; Li-Jun XU ; Kai-Fu WANG ;
Chinese Journal of Endocrinology and Metabolism 1986;0(04):-
Objective To investigate the effect of berberine on insulin resistance induced by free fatty acid in 3T3-L1 adipocytes and the possible molecular mechanism.Methods 3T3-L1 adipocytes were treated with 0.5 mmol/L palmitic acid to induce insulin resistance.Berberine was used for treatment and aspirin for positive control.Glucose oxidase method was employed for measuring the glucose consumption in the medium and 2-deoxy- [~3H]-D-glucose method was used for the determination of glucose uptake.Western blot was used for the determination of IKB kinase(IKK)?SerlS1 phosphorylation,insulin receptor substrance-1(IRS-1)Ser307 phosphorylation,the protein expression of IKK?,IRS-1,phosphatidylinositol 3-kinase(PI-3K)p85 and glucose transporter 4(Glut4).Results After the treatment with 0. 5 mmol/L of palmitic acid for 24 h,glucose consumption by 3T3-L1 adipocytes was decreased by 41%,insulin-stimulated glucose transport was inhibited by 67%,IRS-1 and PI-3K p85 proteins were reduced, and phosphorylations of IKK?Ser181 and IRS-1 Ser307 were induced.The above results were reversed by adding berberine or aspirin.But Glut4 and IKK?protein abundance was not changed during this study.Conclusion Berberine significantly improves insulin resistance induced by free fatty acid in 3T3-L1 adipocytes via inhibiting IKK?serine phosphorylation.
5.The level of serum heme oxygenase-1 and carbon monoxide in children with mycoplasma pneumoniae infection
Xianyao LIN ; Yi WEI ; Ting XU ; Jielin ZHOU ; Dong CHEN ; Kai WANG
Chinese Pediatric Emergency Medicine 2015;22(9):607-609
Objective To investigate the role of heme oxygenase-1 ( HO-1 ) and carbon monoxide ( CO) in children with mycoplasma pneumoniae infection. Methods A total of 198 cases with mycoplasma pneumoniae infection under 3 years were enrolled in this study. According to whether with wheezing,all cases were divided into wheezing group( n=58 ) and no wheezing group ( n=140 ) . According to having hypox-emia,wheezing group was divided into mild wheezing group(n=34) and severe wheezing group(n=24). And no wheezing group was set as control group. The serum COHb levels were measured by dual-wavelength spectrophotometry. The serum HO-1 were measured by ELISA. Results The levels of serum HO-1 and COHb% in severe wheezing group were ( 2 734. 10 ± 707. 59 ) ng/L, ( 3. 88 ± 0. 83 )%, and ( 1 130. 03 ± 671. 02) ng/L,(1. 16 ± 0. 63)% in mild wheezing group,and(931. 32 ± 451. 67) ng/L,(1. 04 ± 0. 37)% in no wheezing group,respectively. There were significant differences in serum HO-1 and COHb% between se-vere wheezing group and mild wheezing group(P<0. 01,respectively),and there were no significan differ-ences in serum HO-1 and COHb% between mild wheezing group and no wheezing group( P>0. 05,respec-tively). There was significant positive correlation between serum HO-1 and COHb%(r=0. 875,P<0. 01). Conclusion With mycoplasma pneumoniae infection,the expression of HO-1 and COHb% increase by the wheezing disease progression. HO-1 and CO may participate in the development process of infantile wheezing diseases.
6.Strategies of sperm collection from men with temporary penile erectile dysfunction on the day of oocyte retrieval and the outcomes of IVF-ET.
Hong-yi XU ; Kai DENG ; Qing-bing LUO ; Xin ZHANG ; Xin LI ; Chang-jun ZHANG
National Journal of Andrology 2015;21(12):1093-1097
OBJECTIVETo search for the optimal strategies for sperm collection from the patient with temporary penile erectile dysfunction (ED) on the day of oocyte pick-up ( OPU) in in vitro fertilization embryo transfer (IVF-ET).
METHODSWe retrospectively analyzed 93 cases of temporary ED on the OPU day of IVF-ET from January 2011 to May 2014, with fresh semen for 45 cases (group A), cryopreserved sperm before oocyte retrieval for 30 cases (group B), and frozen oocytes for 18 cases (group C). Group A was again subdivided into A1 (n = 18) and A2 n = 27) , the former intervened with oral sildenafil while the latter left untreated. We compared the rates of fertilization, high-quality embryo, and pregnancy among different groups.
RESULTSNo statistically significant differences were found among groups A, B and C in the age of the males and females, duration of infertility, numbers of obtained and mature oocytes, and rates of cleavage, or in the percentages of normal fertilization (80.78% vs 80.43% vs 84.77%), high-quality embryo (53.27% vs 52.97% vs 47.69%) and pregnancy (60.00% vs 56.77% vs 44.44%) (all P > 0.05). The rate of 3PN was markedly lower in group C (0.63%) than in A (9. 61%) and B (4.34%) (P < 0.05). There were no significant differences between groups A1 and A2 in the age of the males and females, duration of infertility, numbers of obtained and mature oocytes, and the rates of fertilization, cleavage, high-quality embryo, and pregnancy (all P > 0.05).
CONCLUSIONOn the OPU day of IVF-ET, oral sildenafil can help temporary ED men to achieve penile erection and ejaculation without affecting the outcomes of assisted reproduction. Cryopreserved sperm can be used in case of predicted temporary ED and frozen oocytes can also be employed if sperm retrieval fails. However, to avoid puncture injury to the epididymis or testis, fresh semen should be the first choice.
Cryopreservation ; Embryo Transfer ; Erectile Dysfunction ; drug therapy ; physiopathology ; Female ; Fertilization ; Fertilization in Vitro ; Humans ; Male ; Oocyte Retrieval ; Oocytes ; Penis ; Pregnancy ; Retrospective Studies ; Sildenafil Citrate ; therapeutic use ; Sperm Retrieval ; Spermatozoa
7.Risk factors of neonatal tetanus in Wenzhou, China: a case-control study
Zu-Mu Zhou ; Hong-Ying Shi ; Yi Xu ; Cai-Song Hu ; Xiao-Ming Zhang ; Li-Na Zhao ; Zuo-Kai Xie
Western Pacific Surveillance and Response 2015;6(3):28-33
Introduction:Neonatal tetanus is a major cause of neonatal mortality in many developing countries and remains a major public health problem. This study aimed to determine risk factors associated with neonatal tetanus in Wenzhou, China.Methodology:Medical records of neonatal tetanus cases from 17 hospitals over a 13-year period (2000–2012) were reviewed for potential risk factors. Controls were selected from neonates with diseases other than tetanus who were admitted to the same facility during the same period. The potential risk factors of the neonatal tetanus group were compared with the control group using univariate analysis and an unconditional logistic regression model.Results:A total of 246 neonates with tetanus and 257 controls were included in this study. Univariate analysis showed that having untrained birth attendants, home delivery, an unsterile method of delivery and being a migrant to Wenzhou were significantly different between the two groups (
8.Magnetic resonance imaging for diagnosis of mid- and long-term complication after liver transplantation.
Journal of Southern Medical University 2006;26(5):651-653
OBJECTIVETo assess the value of magnetic resonance imaging (MRI) in mid- and long-term complication monitoring after liver transplantation.
METHODSTwenty-one recipients receiving orthotropic liver transplantation between Feb 2003 and May 2005 were enrolled in this study. FLASH T(1)-weighted, T(2)-weighted fast spin echo, T(2)-weighted fat suppression, dynamic gadolinium-enhanced, MR cholangiopancreatography (MRCP) and three-dimensional dynamic gadolinium-enhanced FISP MRA images were obtained.
RESULTSOf the 21 patients, bile duct complications were detected in all cases and liver arterial and venous complications in 8 cases. Liver cancer relapse occurred in 5 cases and allograft failure in 4.
CONCLUSIONMR imaging allows effective monitoring of mid- and long-term complications of liver transplantation, which provides valuable clues for their clinical treatment.
Adult ; Arterial Occlusive Diseases ; diagnosis ; etiology ; Bile Duct Diseases ; diagnosis ; etiology ; Female ; Hepatic Artery ; diagnostic imaging ; pathology ; Humans ; Liver Cirrhosis ; surgery ; Liver Neoplasms ; surgery ; Liver Transplantation ; adverse effects ; Magnetic Resonance Imaging ; methods ; Male ; Middle Aged ; Radiography ; Reproducibility of Results ; Sensitivity and Specificity
9.Effects of ibuprofen on the growth and development of oligodendrocytes
Ji-Peng JIANG ; Kai YANG ; Fei ZHAO ; Shan-Shan ZHANG ; Ai-Bo PANG ; Sai ZHANG ; Xu-Yi CHEN
Tianjin Medical Journal 2018;46(5):509-514
Objective To study the effects of ibuprofen on the growth and development of oligodendrocytes. Methods A total of 6 clean and healthy adult female SD (Sprague Dawley) rats were used for extracting and culturing of oligodendrocytes(OLs).Lysophosphatidic acid(LPA)was then added,and the morphological changes of OLs pre-treatment and post-treatment were observed. Then 6 newborn rats (born 24-48 h) were used for mixed glial cell extraction from the cortex, then the OPCs were inoculated into the culture plates and randomly divided into control group, ibuprofen group, lysophosphatidic acid(LPA)group and LPA+ibuprofen group.After the adhering of the cells in each group for three days, cell morphology was observed,and the drugs were added as interventions.The control group was treated with normal saline, and the other 3 groups were added with saline solution of ibuprofen(100 μmol/L),LPA(1.0 μmol/L)and the mixture of them. The cell morphological changes were observed after 7-day intervention.The morphology of OPCs and OLs were observed by immunofluorescence staining through OPCs'specific immune markers (platelet-derived growth factor receptor alpha, PDGFR-α)and OLs'specific immune markers(myelin basic protein,MBP)along with cell count of mature OLs.Western blot assay was used to detect the relative expression level of MBP in each group. Results After the treatment with LPA to the mature OLs,protrusions were shrinking and became very sparse.The morphology of cells developed well in each group after cell adhering for 3 days. After drug intervention for 7 days, more cell protrusions and branches were observed in ibuprofen group and LPA+ibuprofen group than those of the control group and LPA group.The results of cell count showed that the number of MBP positive cells was significantly higher in the ibuprofen group and LPA+ibuprofen group than that in the control group and LPA group(P<0.01).The results of Western blot assay showed that the MBP protein expression was significantly less in LPA group than the other three groups (P<0.01), and the expression was significantly higher in the ibuprofen group than that of LPA+ibuprofen group (P<0.01). Conclusion LPA has a toxic effect on the growth and development of OPCs, and it has an inhibitory effect on the normal growth of mature OLs. A certain concentration of ibuprofen can significantly inhibit the cytotoxicity of LPA on OPCs and OLs,and promote the formation and maintenance of mature OLs.
10.Comparison between 11 C-methionine and 18F-FDG PET/CT in diagnosing residual or recurrent glioma
Dong-li, LI ; Yi-kai, XU ; Quan-shi, WANG ; Hu-bing, WU ; Hong-sheng, LI ; Qiao-yu, WANG
Chinese Journal of Nuclear Medicine 2011;31(4):233-236
Objective To assess the value of 11 C-methionine (MET) PET/CT for the diagnosis of residual or recurrent glioma in comparison to 18 F-FDG PET/CT. Methods Forty-six patients suspected of residual or recurrent glioma underwent both 11 C-MET and 18 F-FDG PET/CT within 5-day interval. The glioma was considered as positive on PET/CT images based on ( 1 ) visual judgment of higher tracer uptake compared with the normal gray matter; (2) semiquantitative analysis of tumor to contralateral normal gray matter (T/G) and contralateral normal white matter (T/W) ratios. The diagnosis was confirmed by stereotsctic biopsy or radiological findings of MRI or CT and clinical follow-up ( >6 months). The Chi-square test and paired t test were used for statistical analysis. Results Residual or recurrent glioma was confirmed in 36 patients. The sensitivity, specificity, accuracy of 11C-MET and 18F-FDG PET/CT were 94.4% (34/36) vs 47.2% (17/36), 90.0% (9/10) vs 100% (10/10), 93.5% (43/46) va 58.7% (27/46) (x2 =19. 429, 1. 053, 15. 294, P <0.001, >0.05, <0.001 ), respectively. The T/G and T/W ratios of residual/recurrent giloma by 11 C-MET were significantly higher than those by 18 F-FDG (T/G ratio: 1.68 ± 0.23 vs 1.13 ±0.51, t = 5. 877, P < 0. 001; T/W ratio: 2.52 ± 0.28 vs 1.42 ± 0. 57, t = 10. 470, P <0. 001 ). Conclusion 11 C-MET PET/CT is more sensitive and accurate than 18 F-FDG PET/CT for the detection of residual or recurrent glioma.