Objective To investigate the changes of QT dispersion and heart rate variability in children with ventricular contraction. Methods 50 healthy children who came for medical examinations at Chengdu Women′s and Children′s Central Hospital from January 2012 to January 2014 were selected as control group. 147 children with ventricular contraction admitted in Pediatric Intracardiac Department of Chengdu Women′s and Children′s Central Hospital from January 2012 to January 2014 were divided them into Benign Group (LownⅠ&LownⅡ) and Malignant Group(LownⅢ, LownⅣA, LownⅣB&LownⅤ) according to the results of Lown classification. Benign Group contained 90 cases while Malignant Group contained 57 cases. Difference in QT dispersion and indices of heart rate variability of the three groups were compared. Results There were no statistically differences between control group and benign group in QT dispersion (P > 0.05). QT dispersion of malignant group was much longer than that of control group and the differences had statistically meaning(P<0.001). SDNN(standard deviation of NN intervals) , SDANN (standard deviation of the averages of RR intervals ), SDNN index (index of standard deviation of the averages of NN intervals), rMSSD(root mean square of successive differences) and PNN50(percentage of successive normal sinus RR intervals>50 ms) of malignant group was much shorter than that of control group and benign group and the differences had statistically meaning (P< 0.01). SDNN, SDANN and SDNN index of benign group was shorter than that of control group and the differences had statistically meaning (P<0.05). Conclusions Heart rate variability of children with malignant ventricular contraction becomes significantly shorter and QT dispersion becomes significantly longer. Detection of QT dispersion and heart rate variability can effectively predict the risky degree of ventricular contraction in children.

Objective: To study the relationship between human herpes vi rus 6 (HHV-6) infection and oral squamors cell carcinoma. Methods: The serum anti-HHV-6 antibody titers from 16 cases of oral squamors cell carcinoma (OSCC) and 16 control subjects were detected by indirect immunofluores cence assay. HHV-6 DNA in peripheral blood mononuclear cells was amplified by P CR and the specificity was confirmed by Southern-blot hybridization with an int ernal probe oligonuclotide. An immunohistochemical staining was used to detect H HV-6 antigen in OSCC tissues. Results: Positive expression of s erum HHV-6 IgG antibody was found in all the cases of OSCC and in 12 of the 16 controls. Geometric mean titer of OSCC group and control group was 1∶118 and 1 ∶64 respectively (P

AIM: To report one case of huge fungal granuloma in the deep maxillofacial region with its clinical findings,diagnosis and treatment process to improve our understanding of fungal granuloma and lessen misdiagnosis.METHODS: The literature was reviewed with combination of case report.RESULTS: The clinical and imaging findings of fungal granuloma had no specificity and were very subject to misdiagnosis. Confirmed diagnosis needed histopathological examination and bacterial culture.CONCLUSION: Deepened understanding of this disease can decrease misdiagnosis and benefit prompt and proper treatment.

OBJECTIVETo establish serum proteome fingerprinting predictive models and search for proteins associated with colorectal cancer.

METHODSThirty-six randomly selected colorectal cancer patients and 36 cases with hernia or gall bladder diseases scheduled for elective operation were enrolled as cancer group and control group respectively. Peripheral venous blood samples were collected before the operations. Special serum protein or peptide fingerprint was investigated by using surface enhanced laser desorption/ ionization-time of flight-mass spectrometry (SELDI-TOF-MS) measurement after blood sample had been treated with weak cation exchange protein chip (CM10) for each case. The obtained data were analyzed by Biomarker Wizard software to screen serum proteome tumor markers and set up diagnosis predictive model for colorectal cancer. Blind validation of the model with 44 healthy controls and 88 colorectal cancer patients were carried out by using Biomarker Patterns Software.

RESULTSIn comparing colorectal cancer group with control group, 5 specific protein peaks (P < 0.05) were found. The predictive model had a sensitivity of 100% and a specificity of 97.2%. A sensitivity of 71.6% and a specificity of 72.7% was got with the blind validation. The specific protein peaks with a mass-to-charge ratio (m/z) of 8908 and 13,707 showed in all the results and it showed their strong relationship with colorectal cancer.

CONCLUSIONSThe predictive models built by the differences of serum proteome fingerprint could be a very useful diagnostic tool in colorectal cancer. Proteins with m/z of 8908 and 13,707 would possibly be the tumor markers of colorectal cancer.

Biomarkers, Tumor ; blood ; Blood Proteins ; analysis ; Colorectal Neoplasms ; blood ; diagnosis ; Female ; Humans ; Male ; Middle Aged ; Peptide Mapping ; Proteomics ; methods ; Sensitivity and Specificity ; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization

Objective To investigate the change of endomucin(EMCN) expression in diabetic retinopathy (DR) and its protective role in neurons apoptosis.Methods Fifty-six clean SD rats were randomly divided into 4 groups,including normal control group with intravitreal injection of normal saline,diabetes mellitus (DM) group with intravitreal injection of normal saline,EMCN transfection group with intravitreal injection of adenovirus associated virus(AAV)-EMCN and mCherry transfection group with intravitreal injection of AAV-mCherry,14 rats for each group.Intravitreal injection was performed 2 weeks before diabetes modeling.Western blot analysis was used to measure the expression of EMCN and phosphorylated Akt (p-Akt)/Akt.Flat-mounted retinas were performed to test the transfection efficiency.Hematoxylin-eosin staining was performed to examine the morphology of retinal tissue.The expression of cleaved caspase-3 in retinas of rats was assayed by immunofluorescence.The retinal apoptotic cells were detected by TUNEL.The use and care of the rats followed the ARVO Statement.Results The levels of fasting plasma glucose were significantly higher in the DM group,EMCN transfection group and mCherry transfection group than those in the normal control group (all at P＜0.001).The expression of EMCN protein at 4 weeks and 8 weeks after modeling in the DM group were significantly lower than that in the normal control group (t=3.71,P＜0.05;t =10.09,P＜0.001).The mCherry transfection group was strongly expressed red fluorescence,the expression of EMCN was significantly lower in retinal tissue of DM group than that in the normal control group (t=13.67,P＜0.001).The expression of EMCN was notably upregulated in retinas of EMCN transfection group,comparing with that of DM group (t =3.18,P＜0.05).The expression of EMCN in mCherry transfection group was similar to that in the DM group (t =2.31,P=0.08).Initial morphologic degenerative changes were found in the DM group and mCherry transfection group,such as inter limiting membrane (ILM) was thicken,the number of RGCs was decreased,and the cells in outer nuclear layer (ONL) and inner nuclear layer (INL) arranged irregularly.The histologic change of retinas in the EMCN transfection group was milder than that in the DM group.The expression of cleaved caspase-3 was upregulated in INL of DM group and mCherry transfection group,compared with that in the normal control group.Compared with the normal control group,the number of TUNEL-positive cells noticeably increased in the ONL of DM group and mCherry transfection group,and the number of TUNEL-positive cells markedly reduced in the EMCN transfection group.The relative expression of p-Akt/Akt was significantly lower in the retinal tissue of DM group than that in the normal control group (t =5.52,P＜0.01).However,the relative expression of p-Akt/Akt was notably upregulated in retinas of EMCN transfection group,compared with that in the DM group (t=3.14,P＜0.05).The relative expression of p-Akt/Akt in mCherry transfection group was similar to that in the DM group (t =0.81,P =0.46).Conclusions The overexpression of EMCN can protect diabetic retinas neurons from apoptosis,and its mechanism maybe associated with activation of Akt signaling pathway.

Objective To evaluate the prediction value of serum uric acid level in the occurrence of multiple metabolic disorders.Methods The subjects are from the Health Management Centre,Tianjin Medical University General Hospital.Four kinds of metabolic diseases,namely type 2 diabetes mellitus,hypertension,hyperlipidemia,and nonalcoholic fatty liver disease (NAFLD),were analyzed by four-cohort analysis.Sample sizes were 56 915,47 387,31 431,and 35 203.The average follow-up time for each cohort was (3.56±2.32),(3.31±2.24),(2.70±1.95),(2.90± 1.76) years,respectively.In each cohort,the population was divided into two groups,depending on the occurrence of type 2 diabetes,hypertension,hyperlipidemia,and NAFLD during follow-up.All relevant variables were tested for baseline and follow-up,including laboratory tests,lifestyle questionnaire,and physical examination.Statistical analysis by Cox proportional hazard regression model was performed for the relationships between the fifth percentile of the distribution of serum uric acid levels and incidence of type 2 diabetes,hypertension,hyperlipidemia,and NAFLD.Results During the follow-up period,the incidence of type 2 diabetes,hypertension,hyperlipidemia,and NAFLD were 3.5％,17.6％,33.4％,and 15.7％,respectively.After adjustment for confounding factors,with the increase in serum uric acid level,the hazard ratios (95％CI) of type 2 diabetes were 1.00,0.82 (0.70,0.95),0.80 (0.69,0.92),0.77 (0.67,0.88),and 0.83 (0.72,0.95) (P=0.02).Meanwhile,higher risk of hypertension,hyperlipidemia,and NAFLD were associated with elevated serum uric acid level.In the group with the highest serum uric acid level in each cohort,the hazard ratio (95％CI) of hypertension,hyperlipidemia,and NAFLD were 1.17 (1.09,1.25),1.20 (1.13,1.28),and 1.56 (1.43,1.70),respectively (P＜ 0.01),as compared to the group with the lowest level.Conclusion Serum uric acid levels have a positive predictive value for the occurrence of hypertension,hyperlipidemia,and NAFLD,but have a negative predictive value for type 2 diabetes.

BACKGROUND:At present,there is a lack of an internal fixation system with good reduction and simple operation for the treatment of atlas burst fracture by posterior single-segment fixation. OBJECTIVE:Based on the atlas CT measurement data,a new posterior atlas fracture reduction and internal fixation system was designed and optimized,which was in line with the characteristics of human local anatomical structure,easy to operate and with good reduction. METHODS:CT images of 347 adults were analyzed retrospectively.In the images,the length of pedicle screw track with a medial inclination of 0°,the angle of the maximum medial inclination angle and the length of pedicle screw track at this time,the height of vertebral artery groove,the distance between the entry points of bilateral pedicle screws and the midline,the radius of the posterior arch of atlas,the distance between the posterior tubercle of the atlas and the posterior edge of the foramen magnum,and the distance between the posterior tubercle of the atlas and the upper surface of the axial arch were measured.The imaging data were analyzed and a reduction and internal fixation system was designed and optimized for atlas fracture in line with human anatomical characteristics. RESULTS AND CONCLUSION:(1)There was no statistically significant difference in the the length of pedicle screw track with a medial inclination of 0°,the maximum medial inclination angle and the length of pedicle screw track at this time,the height of vertebral artery groove,the distance between the entry points of bilateral pedicle screws and the midline,the radius of the posterior arch of atlas,the distance between the posterior tubercle of the atlas and the posterior edge of the foramen magnum,and the distance between the posterior tubercle of the atlas and the upper surface of the axial arch measured on the left and right sides of all subjects(P>0.05).There were statistically significant differences in each index measured between the male and female groups(P<0.05).(2)The new posterior atlas fracture reduction and internal fixation system has been successfully designed and obtained the national patent.The internal fixation system is suitable for the anatomical characteristics of the posterior arch of the atlas.It can not only effectively treat the atlas burst fracture,but also retain the movement function of the occipital atlantoaxial joint.

Objective: To observe short-term and long-term efficacies of Danlu Tongdu tablets on lumbar disc herniation (LDH) with kidney deficiency and stasis syndrome, and its effect on nucleus pulposus reabsorption and immunoinflammatory factors. Method: One hundred and sixty patients were randomly divided into control group (80 cases) and observation group by random number table. Patients in control group (80 cases) got acupoint massage and acupuncture, 1 time/day. In addition to the therapy of control group, patients in observation group were also given Danlu Tongdu tablets, 4 tablets/time, 3 times/days. A course of treatment was 12 weeks, and a 9-month follow-up was recorded. Lumbago and leg pain were recorded by visual simulation (VAS) before treatment and at the first, second, third month after treatment. Before and after treatment, Japanese orthopaedic association (JOA), symptoms and signs were scored. During the 9-month follow-up, relapse rate and relapse time were recorded, and VAS and JOA were scored. Absorption of nucleus pulposus was assessed, and levels of interleukin-1 (IL-1), IL-17, tumor necrosis factor-α (TNF-α), matrix metalloproteinases-3 (MMP-3) were detected. Result: By rank sum test, the clinical efficacy in observation group was better than that in control group (Z=2.125, P<0.05), and scores of JOA was better than that in control group (Z=1.924, P<0.05). At the first, second and third months after treatment, VAS scores of low back pain, leg pain were lower than those in control group (P<0.01), while the decline range were more than that in control group (P<0.01). And scores of symptoms and signs were lower than that in control group (P<0.01), whereas scores by dimensions of JOA scale and the total score of JOA were all higher than those in control group (P<0.01). Complete absorptivity of nucleus pulposus in observation group was 61.11%, which was higher than 42.03%in observation group (χ²=5.138, P<0.05). Levels of IL-1, IL-17, TNF-α and MMP-3 were lower than that in control group (P<0.01). Relapse rate in observation group was 23.61%, which was lower than 40.58%in control group (χ²=4.668, P<0.05). Average recurrence time was longer than that in control group (P<0.05), score of VAS was lower than that in control group (P<0.05), and the total score of JOA was higher than that in control group (P<0.05). Conclusion: In addition to acupuncture and massage therapy, Danlu Tongdu tablets can also be used to relieve pain and ameliorate function, improve clinical efficacy, reduce relapse rate, promote nucleus pulposus reabsorption, and relieve inflammation of nerve root.

OBJECTIVETo establish a serum protein fingerprint model for prediction of liver metastasis from colorectal cancer by SELDI-TOF-MS analysis, and to determine the differentiatial proteins associated with the metastatic liver cancers.

METHODSData were collected from the Department of General Surgery in Zhongshan Hospital. A group of patients with colorectal cancer (CRC) without liver metastasis (n = 36) and another group with liver metastasis (n = 36) were included in this study. Serum samples were collected from peripheral venous blood before operation. Special serum protein or peptide fingerprint was determined by surface-enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI-TOF-MS). The obtained data were analyzed by Biomarker Wizard software to screen the serum protein markers discriminating colorectal cancer patients with and without liver metastasis. A serum protein fingerprint model was established. This model was blindly verified in of CRC patients with and 44 cases without liver metastasis.

RESULTSComparing the characteristic proteins in those two groups of patients, 10 specific protein peaks were identified with statistical significance (P < 0.05). According to m/z growing from small to large, they were: 2398, 2814, 4084, 4289, 4465, 6422, 6619, 11 482, 11 649 and 13 714. The predictive model had a sensitivity of 91.7% and a specificity of 97.2%. The validation showed a sensitivity of 75.0% and a specificity of 81.8%.

CONCLUSIONA predictive model based on differentiatial serum protein fingerprint with high sensitivity and specificity has been successfully established. It should be a very useful tool in detection and diagnosis of liver metastasis in colorectal cancer patients.

Aged ; Biomarkers, Tumor ; blood ; Blood Proteins ; analysis ; Colorectal Neoplasms ; blood ; pathology ; Female ; Humans ; Liver Neoplasms ; blood ; diagnosis ; secondary ; Male ; Middle Aged ; Neoplasm Proteins ; blood ; Peptide Mapping ; Sensitivity and Specificity ; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization ; methods

OBJECTIVETo investigate the safety of autologous bone marrow mononuclear cell (BM-MNCs) transplantation by intracoronary infusion in patients with acute myocardial infarction (AMI).

METHODSOne hundred and eighty-four patients with AMI treated with percutaneous coronary intervention (PCI) were randomized in a 1:1 way to either intracoronary transplantation of autologous BM-MNCs (n = 92) right after PCI or to sodium chloride concluding heparin (controlled, n = 92) via a micro infusion catheter. In the process of the intracoronary infusion of BM-MNCs, the complications should be recorded, which were aberration reflect (including of pale, syncope, nausea, hypotension and shock), deterioration of angina or heart failure, arrhythmias (including of bradycardia, sinus arrest or atrial ventricular block or ventricular fibrillation), embolism etc. Body temperature, blood pressure and heart rates should be monitored during the first week after transplantation. Holter, coronary angiography and ultrasonic cardiography were performed at the designed time points. Main heart accidents, restenosis and tumor were recorded during 2-years follow up.

RESULTSDuring the period of bone marrow puncture and intracoronary infusion of BM-MNCs, few patients occurred pale, dizziness, bradycardia and hypotension, which were transient and due to vagus reflect. No stem cell-related arrhythmias, deterioration of angina were noted. In BM-MNCs group one patient developed in-stent reocclusion in one week after transplantation, five developed in-stent restenosis during further follow-up 30 months, which were similar with control group. There were no deaths, major adverse cardiac events, tumor and other late adverse events during follow-up period in both groups.

CONCLUSIONIntracoronary transplantation of autologous BM-MNCs in the acute phase after AMI is feasible and seems safe in the 30 months of follow-up.

Adult ; Aged ; Bone Marrow Transplantation ; methods ; Coronary Vessels ; Female ; Follow-Up Studies ; Humans ; Male ; Mesenchymal Stem Cell Transplantation ; methods ; Middle Aged ; Myocardial Infarction ; surgery ; Transplantation, Autologous