Diagnosis and treatment of ankyloglossia in newborns and infants / 华西口腔医学杂志

Ankyloglossia is a congenital condition characterized by a short lingual frenulum, which may result in the restriction of tongue movement and function. Considerable controversy regarding the diagnosis, clinical significance, and management of the condition remains, and great variations in practice have been recorded. Indeed, attitudes toward ankyloglossia differ among professional groups, and opinions may vary remarkably even among those within the same specialty. This article reviews the embryology, genetics, diagnosis, clinical presentation, and treatment of ankyloglossia to help physicians better understand and treat the condition.

Expression Difference of RhoH Gene in Leukemia and Its Clinical Significance / 中国实验血液学杂志

OBJECTIVE@#To investigate the expression and clinical significance of RhoH gene in bone marrow cells of leukemia patients.@*METHODS@#31 cases of leukemia and 15 cases of non-tumor as controls were collected. The expression of RhoH in bone marrow cells was detected by real-time quantitative PCR (RQ-PCR). The median expression level of RhoH was used as the cut-off value. The newly diagnosed patients were divided into RhoH high expression group and low expression group. The relationship of different RhoH expression levels with clinical features and prognosis of newly diagnosed patients was analyzed.@*RESULTS@#The mRNA expression of RhoH in the bone marrow cells of 31 cases of leukemia was significantly lower than that in the control group, mRNA expression of RhoH in the ALL group was significantly lower than that in AML group (P＜0.05). Compared with the RhoH high expression group, the proportion of bone marraw blasts and LDH level in the RhoH low expression group was significantly increased (P＜0.05), but there were no significant differences in clinical features such as age, white blood cell count, hemoglobin level, platelets count, PCT and CRP level (P＞0.05). In AML, the recurrence rate after standard chemotherapy in RhoH low expression group was higher than that in high expression group, while the expression of RhoH not correlated with other prognostic genes of AML. In ALL, the recurrence rate in RhoH low expression group was not statistically significant different from that in high expression group.@*CONCLUSION@#RhoH may be involved in the genesis of acute leukemia. In AML, RhoH expression negatively correlates with recurrence rate, which can be used as a prognostic indicator independently. In ALL, RhoH may participate in the disease process through other mechanism.

An Analysis on the Association between Lipid Metabolism and Low Birth Body Mass and Relative Factors among Rural and Urban Adolescents / 中国医学科学院学报

<p><b>OBJECTIVE</b>To analyze the status of lipid metabolism and the relationship between low birth body mass and lipid metabolism disorders in adolescents with different economic and cultural backgrounds.</p><p><b>METHODS</b>Totally 1700 adolescents from urban and rural areas aged 12-18 years were selected in 2013. The lipid profiles were determined, and a questionnaire-based survey was conducted.</p><p><b>RESULTS</b>Among normal birth body mass adolescents, girls obtained a high density lipoprotein in both urban and rural areas, low density lipoprotein cholesterol level was higher for city girls, rural boys and urban girls obtained higher total cholesterol level, the differences all reached statistical significance. While among the low birth body mass adolescents, higher level of total cholesterol for urban boys was detected, with statistically significance. When compared between rural and urban areas, high density lipoprotein cholesterol level for urban adolescents was lower in normal birth body mass adolescents, while total cholesterol level for urban adolescents was higher, both with statistically significance. While the comparison between different birth body mass adolescents suggested that the normal birth body mass adolescents obtained a higher high density lipoprotein cholesterol, low density lipoprotein cholesterol, triglyceride and total cholesterol level. When analyze the influenced factors of disorder of lipid metabolism, the Results suggest that low birth body mass, maternal pregnancy body mass increasing, lipid homeostasis family history, absence of breakfast, unhealthy snack habit, abnormal of systolic blood pressure and pulse pressure increasing were related to the occurrence of dyslipidemia.</p><p><b>CONCLUSIONS</b>Low birth body mass is related with lipid metabolism in early puberty. Low birth body mass, family history of abnormal lipid metabolism, and poor diet habits can increase the risk of abnormal lipid metabolism in puberty.</p>

Performance comparison between Logistic regression, decision trees, and multilayer perceptron in predicting peripheral neuropathy in type 2 diabetes mellitus / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Various methods can be applied to build predictive models for the clinical data with binary outcome variable. This research aims to explore the process of constructing common predictive models, Logistic regression (LR), decision tree (DT) and multilayer perceptron (MLP), as well as focus on specific details when applying the methods mentioned above: what preconditions should be satisfied, how to set parameters of the model, how to screen variables and build accuracy models quickly and efficiently, and how to assess the generalization ability (that is, prediction performance) reliably by Monte Carlo method in the case of small sample size.</p><p><b>METHODS</b>All the 274 patients (include 137 type 2 diabetes mellitus with diabetic peripheral neuropathy and 137 type 2 diabetes mellitus without diabetic peripheral neuropathy) from the Metabolic Disease Hospital in Tianjin participated in the study. There were 30 variables such as sex, age, glycosylated hemoglobin, etc. On account of small sample size, the classification and regression tree (CART) with the chi-squared automatic interaction detector tree (CHAID) were combined by means of the 100 times 5-7 fold stratified cross-validation to build DT. The MLP was constructed by Schwarz Bayes Criterion to choose the number of hidden layers and hidden layer units, alone with levenberg-marquardt (L-M) optimization algorithm, weight decay and preliminary training method. Subsequently, LR was applied by the best subset method with the Akaike Information Criterion (AIC) to make the best used of information and avoid overfitting. Eventually, a 10 to 100 times 3-10 fold stratified cross-validation method was used to compare the generalization ability of DT, MLP and LR in view of the areas under the receiver operating characteristic (ROC) curves (AUC).</p><p><b>RESULTS</b>The AUC of DT, MLP and LR were 0.8863, 0.8536 and 0.8802, respectively. As the larger the AUC of a specific prediction model is, the higher diagnostic ability presents, MLP performed optimally, and then followed by LR and DT in terms of 10-100 times 2-10 fold stratified cross-validation in our study. Neural network model is a preferred option for the data. However, the best subset of multiple LR would be a better choice in view of efficiency and accuracy.</p><p><b>CONCLUSION</b>When dealing with data from small size sample, multiple independent variables and a dichotomous outcome variable, more strategies and statistical techniques (such as AIC criteria, L-M optimization algorithm, the best subset, etc.) should be considered to build a forecast model and some available methods (such as cross-validation, AUC, etc.) could be used for evaluation.</p>

Prevalence rate of hypertension and related risk factors in populations of Tianjin / 中华流行病学杂志

Objective To investigate the prevalence rates of the different subtypes of hypertension and related risk factors in adults from Tianjin.Methods With multi-stage randomized cluster sampling method,20 346 people aged 18 years and over were selected from both urban and rural areas of six geographical regions in Tianjin in 2006.A cross-sectional study was conducted.The prevalence rate of isolated systolic hypertension (ISH),isolated diastolic hypertension (IDH),systolic and diastolic hypertension (SDH) and associated risk factors were analyzed with SPSS 17.0 software.Results The prevalence rates of hypertension in adults of Tianjin were 7.16% for ISH (standardized rate was 5.33%),7.09% for IDH (standardized rate was 6.50%),and 13.61% for SDH (standardized rate was 9.94%) respectively.The ISH prevalence rate was lower than that of national rate of 7.6%,but the prevalence rates of IDH and SDH were higher than that of national rates of 4.4% and 7.4% respectively.The results from logistic regression model analyses indicated that the odds ratio (ORs) for combined risk factors of ISH,IDH and SDH in Tianjin that associated with factors as:lower level of education,living in rural areas were 1.291 (95%CI:1.114-1.497),1.790 (95%CI:1.533-2.091) and 2.117(95%CI:1.879-2.386) respectively;ageing were 1.080(95%CI:1.073-1.086),1.015(95%CI:1.010-1.020) and 1.055(95%CI:1.050-1.060) respectively;alcohol assumption were 1.244(95%CI:1.036-1.492),1.199(95%CI:1.024-1.404) and 1.532(95%CI:1.345-1.744) respectively;overweight were 1.560 (95% CI:1.358-1.792),1.634 (95% CI:1.429-1.869) and 2.104 (95% CI:1.890-2.342) respectively;obesity were 2.216 (95%CI:1.861-2.640),3.125 (95%CI:2.658-3.674) and 3.852 (95% CI:3.383-4.385) respectively;impaired fasting glucose were 1.666 (95% CI:1.327-2.092),1.440 (95% CI:1.126-1.841) and 1.872 (95% CI:1.572-2.230) respectively.Conclusion The prevalence rate of the different subtypes of hypertension was quite high in the population of Tianjin city and different measurements on prevention and treatment should be taken according to different subtypes of hypertension.

Prevalence and risk factors of type 2 diabetes mellitus in adult obese population in Tianjin / 中华流行病学杂志

Objective To investigate the type 2 diabetes mellitus(T2DM)prevalence and related risk factors in adult population with obesity in Tianjin. Methods With stratified cluster randomized sampling, 2888 obese people with BMI≥28 kg/m2, aged 18 years old and over were selected from three urban and three rural regions of Tianjin, in 2006. Information on risk factors was collected with questionnaire through face-to-face interview by trained workers and data on fasting blood glucose(FBG)was collected at the same time. 2hrPPG was tested among the people who' s FBG ≥6.1 mmol/L at the hospital. Prevalence of T2DM was calculated and the distribution of T2DM in the described subgroups and the risk factors analyzed with SPSS software. Results The prevalence of T2DM in adult population with obesity was 11.74%, with females(13.90%)higher than males (8.75%). The prevalence rates of T2DM were statistically different among different groups, classified by age, education, occupation, district and BMI. Results from the univariate and multivariate logistic regression analysis showed that the risk factors of T2DM were age(OR=1.383, 95% CI: 1.254-1 .525)and sex(OR= 1.591,95% CI: 1.230-2.059)while the protective factor was fruit intake(OR=0.867, 95% CI: 0.774-0.971). Conclusion The prevalence of T2DM in adult with obesity was considered to be high. The distribution of T2DM in different subgroups and affecting factors of T2DM in obese adults were different from general population.

Study of the correlation between the plasma viral load and protective immunity induced by the equine infectious anemia attenuated vaccine and its parental virulent strain / 病毒学报

The threshold hypothesis of attenuated lentiviral vaccine considers that the type of host response to infections of lentiviruses depends on the viral load. To evaluate the correlation between viral loads of the attenuated vaccine strain of equine infectious anemia virus (EIAV) and their effects to induce protective immunity, longitudinal plasma viral loads in groups of horses inoculated with either an attenuated EIAV vaccine strain (EIAV(DLV125)) or sub-lethal dose of an EIAV virulent strain (EIAV(LN40)) were compared. Similar levels of plasma viral loads ranging from 10(3)-10(5) copies/mL were detected from samples of these two groups of animals (P > 0.05) during 23 weeks post the inoculation. However, different responses to the challenge performed thereafter with lethal dose of the EIAV virulent strain were observed from the groups of horses inoculated with either EIAV(DLV125) or sub-lethal dose of EIAV(LN40). The protective efficiency was 67% (3 of 4 cases) and 0 (none of 2 cases), respectively. Our results implicate that the viral load of EIAV attenuated vaccine is not the primary factor, or at least not the solo primary factor, to determine the establishment of immune protection.

Prevalence of impaired glucose regulation in the population of Tianjin / 中国医学科学杂志(英文版)

<p><b>OBJECTIVE</b>To investigate the prevalence of impaired glucose regulation (IGR) in the population of Tianjin.</p><p><b>METHODS</b>A cross-sectional study was conducted in Tianjin from June to September in 2005. The multi-phasic stratified cluster sampling method was adopted. Totally, 21,454 people were selected as survey sample. Information on risk factors was collected through face-to-face questionnaire interview. Fasting capillary whole blood glucose level and other clinical indexes were tested.</p><p><b>RESULTS</b>The prevalence of impaired fasting glucose (IFG) in the population was 5.61% (5.32% in male, 5.89% in female). The prevalence of impaired glucose tolerance (IGT) was 2.91% (2.59% in male, 3.20% in female) in whole population, and the prevalence of female was significantly higher than that of male (P = 0.04). The prevalences of IFG and IGT increased with the increasing of age. And the prevalences were also influenced by the profession, educational level, and income level.</p><p><b>CONCLUSION</b>The prevalences of IGT and IFG in Tianjin are similar to those in the other big cities of China.</p>

Treatment of cervical spondylosis of vertebroarterial type with acupuncture regulating the governor vessel / 中国针灸

<p><b>OBJECTIVE</b>To explore an effective therapy for vertigo due to cervical spondylosis of vertebroarterial type.</p><p><b>METHODS</b>Ninety-eight cases were randomly divided into a treatment group (n = 50) and a control group (n = 48). In the control group, C3 - C7 Jiaji points (EX-B 2) and Fengchi (GB 20) were selected, and in the treatment group, Fengfu (GV 16), Dazhui (GV 14), Baihui (GV 20), etc. on the Governor Vessel were added besides the acupoints selected in the control group. Their clinical therapeutic effects were observed.</p><p><b>RESULTS</b>The cured rate and the total effective rate were 56.0% and 98.0% in the treatment group, and 33.3% and 79.1% in the control group, respectively, with significant differences between the two groups in the cured rate (P < 0.05) and in the total effective rate (P < 0.01).</p><p><b>CONCLUSION</b>The therapeutic effect of acupuncture regulating the Governor vessel on vertigo due to cervical spondylosis of vertebroarterial type is better than that of routine acupuncture at Jiaji points.</p>

The affection of Ku70 mRNA expression to tumor and drug resistance in human lung cancer / 中国免疫学杂志

Objective:To investigate the relationship between Ku70 mRNA expression in non-neoplasm,in normal appearing pulmonary tissues,and in lung cancer tissue of pre-or post-chemotherapy and drug resistance.Methods:Ku70 mRNA in the lung tissues was measured by reverse transcription polymerase chain reaction (RT-PCR).The samples were extracted form 26 non-neoplasm, normal appearing pulmonary tissues and 56 lung cancer tissues.Results:Non-neoplasm, normal appearing pulmonary tissue group expressed Ku70 mRNA lower than lung cancer tissue group(P

Evaluation of tumor drug resistance with Ku80 mRNA expression in human lung cancer / 中国免疫学杂志

Objective:To study the different Ku80 mRNA expression in normal lung tissue group, lung cancer group(non small cell lung cancer) without chemotherapy, lung cancer group with multiple chemotherapy(n≥2),to evaluate the relationship of tumor drug resistance with Ku80 mRNA expression in human lung cancer.Methods:The lung tissue gene level of Ku80 mRNA was measured by reverse transcription polymerase chain reaction(RT-PCR) in 25 normal lung tissues, 51 lung cancer tissue,taking ?-actin as inner reference.The data were analyzed by SPSS software.Results:Ku80 mRNA expression in normal lung tissue compared to lung cancer group without chemotherapy, lung cancer group with multiple chemotherapy(n≥2) had statistic significant meaning,respectively P