3.Diagnostic features of pathological fractures located in extremities caused by bone tumor or tumor like lesion
Yan-cheng LIU ; Yong-cheng HU ; Qun XIA ; Bao-shan XU ; Ning Jl ; Hong-chao HUANG ; Zhong-li ZHANG
Chinese Journal of Orthopaedics 2011;31(9):944-948
ObjectiveTo explore the clinical characteristics of pathological fracture in extremities caused by bone tumors or tumor-like lesions. MethodsFrom August 2002 to December 2010, 139 patients with pathological fractures were entered in the study, including 79 males and 60 females with an average age of 31.1 years. Fractures included tumor-like lesion in 55 cases, benign tumor in 13, giant cell tumor (GCT)in 7, primary malignant tumors in 28, and metastatic tumors in 36. Forces induced to fractures were classified into four grades: spontaneous fracture, functional activity, minor injury, severe injury. Age, fracture location, histological results, fractures forces, prodromes, and misdiagnosis were all observed. Chi-square test were use to compare forces and prodromes within different tumors. ResultsThe highest morbidity rate is 32.4%(45/139) which lies in 11-20 years old. The cites of fractures including femurs in 71 cases, humerus in 36, tibia in 15, fingers in 7, radiuses in 4, fibula in 3, ulnas in 2, and metatarsus in 1. Fracture forces include spontaneous fractures in 29 cases, functional activity in 42, minor injuries in 65, and traumatic injuries in 3. Sixty-seven patients(48.2%) had local prodromes. The prodromes of both malignant tumors and metastatic tumors were more than benign tumors. Twenty cases experienced misdiagnosis with average delay time of 12 weeks. ConclusionMinor injury forces and local prodromes are clinical key features of pathological fractures. Both of them are key points of avoiding misdiagnosis.
4.Change of serum leptin and leptin receptors immunoreactivity in the brain following intraoral infusions of chemical solutions in rats.
Zhen HAN ; Jian-qun YAN ; Zhi-chao WEI
Chinese Journal of Applied Physiology 2002;18(4):387-390
AIMTo determining whether the level of serum leptin altered and whether the expression of leptin receptor immunoreactivity changed following taste stimuli.
METHODSAfter intraoral infusions of chemical solutions, which included 3 mol/L sucrose, 5 mmol/L sodium saccharin, 0.1 mol/L NaCl, 0.01 mol/L HCl, 1 mmol/L quinine H2SO4 and 0.1 mol/L monosodium glutamate, serum leptin concentration were measured by using rat leptin RIA kit. Immunohistochemistry ABC method was used for brain sections with high-specify-goat antiserum against leptin receptors.
RESULTSComparing with the control group (intraoral infusion of distilled water), the level of serum leptin only in sweet group (sucrose an d saccharin) raised (P < 0.05). Many neuronal cell bodies and dendritic processes showed leptin receptors immunoreactivity (LR-IR) in many brain regions, such as amygdala, hypothalamus, parabrachial nucleus and nucleus of the solitary tract, which had intense relationship with taste and feeding. But the number of positive-stained cells showed no difference in aforementioned brain regions between the taste stimuli group and the control group.
CONCLUSIONAfter intraoral stimuli of sweet substances, the serum leptin concentration increased. LR-IR cells exist in amygdala which plays a critical role in the initiation and guidance of feeding. This findings led us study possible effects of leptin on taste responses. Probably, leptin influences food intake through the sense of taste.
Animals ; Brain ; physiology ; Eating ; Female ; Leptin ; blood ; metabolism ; Male ; Rats ; Rats, Sprague-Dawley ; Receptors, Leptin ; blood ; Taste
6.Influence of isochronous health education for family on swallowing ability of stroke patients with dysphagia
Xi-Lin LIAO ; Yan BAO ; Chao-Qun CAI
Chinese Journal of Modern Nursing 2009;15(4):301-303
Objective To explore the effect of isochronous health education for family on improving the swallowing ability of stroke patients with dysphagia. Methods 90 patients were divided into the observation group and the control group using the lottery method, with 45 cases in each group. The control group received the routine therapy and the health edcuation, while the observation group was carried out the isochronous health education for family on the above-mentioned basis. The swallowing ability of patients was examined at admission and 8 weeks after admission, and the occurrence rate of complications, the satisfaction degree and the average hospitalized day were compared. Results The difference of swallowing ability when admission had no obviously statistical meaning. The swallowing ability of the observation group was higher than that in the control group after 8 weeks. The occurrence rate of pulmonary infection was lower than that in the control group, while the satisfaction degree and the average hospitalized day were lower than those in the control group. Conclusions Carrying out the isochronous health education for family on swallowing ability of stroke patients with dysphagia can improve the patients' swallowing ability, reduce the occurrence rate of complications, and shorten the hospitalized days.
7.Lymph node metastasis of patients with intrahepatic cholangiocarcinoma.
Zhong CHEN ; Jian-jun YAN ; Liang HUANG ; Meng-chao WU ; Yi-qun YAN
Chinese Journal of Surgery 2006;44(7):454-457
OBJECTIVETo investigate the relationship between lymph node metastasis and prognosis in patients of intrahepatic cholangiocarcinoma (ICC).
METHODSA retrospective clinical analysis was made in 132 cases of ICC, who admitted to our hospital from December 1996 to June 2003. Kaplan-meier method was used to calculate their survival rates, chi(2) test to compare the difference of sample rates. Logistic regression analysis was performed to determine the factors influencing lymph node metastasis and log-rank univariate analysis was used to assess the role of lymph node metastasis in the long-survival.
RESULTSLymph node metastasis in hepatoduodenal ligament could be detected in all 29 preoperative and 48 postoperative lymph metastatic cases, without "jumping-metastasis". Lymph metastasis was one of the major causes of postoperative mortality, and resulted in 36 of 58 followed-up death postoperatively. According to logistic analysis, pathological types of the carcinoma (chi(2) = 4.071, P = 0.044) and periductal-infiltrating tumors (chi(2) = 3.872, P = 0.037) were significant predictors of lymph node metastasis. In all 98 radical resections, 46 cases performed skeletonization of the hepatoduodenal ligament while other 52 cases not. The median survival of the two groups was 20 months and 13 months respectively (chi(2) = 9.82, P < 0.01).
CONCLUSIONSLymph nodes in the hepatoduodenal ligament may be sentinel nodes for ICC lymph node metastasis. Aggressive treatment of lymph node metastasis in the hepatoduodenal ligament is an important strategy to improve the long-survival of postoperative ICC patients.
Adult ; Aged ; Bile Duct Neoplasms ; mortality ; pathology ; surgery ; Bile Ducts, Intrahepatic ; surgery ; Cholangiocarcinoma ; mortality ; secondary ; surgery ; Female ; Humans ; Lymph Node Excision ; Lymph Nodes ; pathology ; Lymphatic Metastasis ; Male ; Middle Aged ; Prognosis ; Retrospective Studies ; Survival Rate
8.Curcumin inhibits the expression of pituitary tumor transforming gene in glioma C6 cell line in vitro
Liang-Qun RONG ; Ru-Fei DAI ; Jun CAI ; Zai-Hai YAN ; Chao YAN
Chinese Journal of Neuromedicine 2008;7(11):1087-1089
Objective To investigate the effect of cnrcumin on the expression of pituitary tumor transforming gene (PTTG) in glioma C6 cell line. Methods Glioma C6 cells were allocated into the control group and 3 cttrcnmin treatment groups with curcumin treatment at 10, 20 and 30 μmol/L for 24 h. After the treatments, PTTG mRNA and protein expressions in the cells were detected by reverse transcription-polymerase chain reaction (RT-PCR) and Western blotting, respectively. Results The expression levels of PTTG mRNA in the 4 groups, showed significant differences between any two groups (P<0.01). Significant differences were also found in PTTG protein expressions between the 4 groups of C6 cells after the treatment (P<0.01). Conclusions Cureumin can down-regulate PTTG expression at both the mRNA and protein levels in glioma C6 cells in a dose-dependent manner.
9.RNA interference of pituitary tumor transforming gene affecting the chemotherapeutic sensitivity of glioma cells
Liang-Qun RONG ; Jun CAI ; Zhi-Hai YAN ; Chao YAN ; Ru-Fei DAI
Chinese Journal of Neuromedicine 2010;09(12):1197-1200
Objective To investigate the chemotherapeutic sensitivity of glioma cells influenced by RNA interference of pituitary tumor transforming gene (PTTG). Methods The glioma U251 cell line was divided into normal control group, TMZ treatment group, PTTG shRNA infection group and PTTG shRNA combined with TMZ treatment group. Cells in the later 2 groups were treated with PTTG shRNA and PTTG shRNA combined with TMZ. MTT assay and flow cytometry were employed to detect the cell proliferation and apoptosis of U251 cell line, respectively. Results The outcome of MTT assay showed that the growth and survive abilities were influenced after treating with PTTG shRNA and PTTG shRNA combined with TMZ; the optical density (OD) value of the control group, TMZ group,PTTG shRNA treatment group and PTTG shRNA combined with TMZ treatment group were (0.85±0.07),(0.58±0.06), (0.55±0.07) and (0.41 ±0.05), respectively. The inhibitory rate of cell proliferation in the TMZ treatment group, PTTG shRNA treatment group and PTTG shRNA combined with TMZ treatment group were (31.56±5.51 )%, (35.53±4.60)%, (51.49±6.74)%, respectively; statistical significance between control group and both PTTG shRNA group and TMZ group was noted (P<0.05); and statistical significance between group PTTG shRNA combined with TMZ and both PTTG shRNA group and TMZ group was noted too. The apoptosis rate in the control group, TMZ group, PTTG shRNA group and PTTG shRNA combined with TMZ group were (6.29±0.78)%, (33.63±4.88)%, (39.61 ±4.95)% and (66.23±7.60)%, respectively, 48 h after the treatment; significant differences were found between the control group and both PTTG shRNA group and TMZ group (P<0.05); and statistical increased apoptosis rate in the PTTG shRNA combined with TMZ group was noted as compared that in the PTTG shRNA group and TMZ group (P<0.05). Conclusion PTTG RNA interference, by inhibiting the cell proliferation and inducing the apoptosis of glioma cells, up-regulates the chemotherapeutic sensitivity and improve the effectiveness of chemotherapy.
10.Single plane Simpson's method for measurement of right ventricular volume by X-ray ventriculography.
Wei CUI ; Zhi-Qun HAN ; Yan-Guang FENG ; Wei-Gang WANG ; Jing-Chao LU ; Zi-Ying CHEN
Chinese Journal of Cardiology 2005;33(2):147-149
OBJECTIVETo study the validity of single plane Simpson's method with conventional X-ray ventriculography for estimation of right ventricular (RV) volume.
METHODSFifteen human RV casts were obtained from 15 subjects who died from non-cardiac causes within 24 hours after death. These casts were photographed respectively and their volumes were calculated by using the single plane Simpson's method based on a new half-circle model. The actual RV cast volumes were determined by water displacement method.
RESULTSThe actual RV volume was (64.23 +/- 24.51) ml and the calculated volume was (58.04 +/- 24.45) ml. The calculated RV volume underestimated the actual volume by (6.19 +/- 12.38) ml, but there was no significant difference between the actual and the calculated RV volume (P > 0.05). There was a significant correlation between the actual cast volume and the calculated volume (r = 0.983, P < 0.01). The regression equation was: RV actual volume = 1.074 x (RV calculated volume).
CONCLUSIONRV volume calculated by single plane Simpson's method with conventional X-ray ventriculography is accurate and deserves further study.
Adolescent ; Adult ; Aged ; Angiocardiography ; methods ; Cardiac Volume ; Child ; Child, Preschool ; Feasibility Studies ; Female ; Heart Ventricles ; Humans ; Male ; Middle Aged ; Models, Cardiovascular ; Ventricular Function, Right ; X-Rays ; Young Adult