Objective To explore the polysomnography(PSG) characteristice of obstructive sleep apnea hypopnea syndrome(OS-AHS) and primary snoring(PS) in children and clinical value of PSG in children with sleep disorders. Methods We analyzed 74 children with OSAHS and 62 with PS, every patient being monitored with PSG for 7 hours at night for 16 parameters, including apnea hypopnea index(AHI), periodic leg movement index(PLMI),and the lowest oxygen saturation(LSaQ2) etc. The parameters of the 2 groups were comparaed. Results Comparaed with PS group, there was statistically significant difference in parameters such as PLMI, AHI,LSaQ2,the moderate oxygen saturation(MSaO2).AHI in non- rapid eye movement (NREM)(P

0.05),higher rate of maternal mortality and perinatal mortality(P

Objective To assess the long-term effects of pacing in patients with hypertrophic obstructive eardiomyopathy(HOCM),and explore the most specific echocardiographic indexes.MethodsA total of 37 consecutive HOCM patients implanted dual-chamber pacemakers were enrolled and followed up.Thirty-seven cases were followed up for 1 year,26 cases were followed up for 2 years,and 10 cases were followed up for 3 years.After 1,2 and 3 years pacemaker implantation,pacing frequency,pacing threshold,impedance,atrioventricular delay and cumulative percent atrial and ventricular pacing were respectively tested,and left atrial dimension (LAD),left ventricular end-diastolic dimension (LVEDd),left ventricular posterior wall thickness (LVPW),interventricular septum thickness (IVS),left ventricular outflow tract diameter(LVOTd),left ventricular outflow tract pressure gradient (LVOTPG),left ventricular ejection fraction(LVEF),pulmonary artery systolic pressure (PASP) were measured and mitral valve systolic anterior motion(SAM) was observed.Pacing parameters and echocardiography indexes were dynamically compared before and after pacemaker implantation.ResultsPacing frequency was adjusted 60～70 bpm,atrioventricular delay was adjusted 90～ 180 ms,in order to achieve more than 95％ ventricular pacing,pacing threshold,pacing impedance were normal.The difference of various pacing parameters were no statistically significant within 3 years ( P ＞ 0.05).Compared with before pacing,after 1,2 and 3 years pacemaker implantation,IVS and LVOTPG declined significantly (P ＜ 0.01 ),LVOTd widened significantly ( P ＜0.01),SAM phenomenon improved obviously ( P ＜0.01 ),but the difference of LAD,LVEDd,LVPW,LVEF,PASP were no statistically significant ( P ＞ 0.05 ).Conclusions The heart structure reconstruction of patients with HOCM can been chronically improved by dual-chamber pacing treatment.IVS,LVOTd and LVOTPG can be used as the sensitive and specific indexes to evaluate pacing treatment.

Objective To evaluate the clinical impact of 18F-FDG PET/CT on patients with suspected cervical cancer recurrence. Methods Fifty-one cervical cancer patients, clinically suspected to have tumor recurrence during follow-up, underwent 18F-FDG PET/CT examination. 18 F-FDG PET/CT results were compared with those of conventional images, as referred to histopathology or clinical follow-up. Impacts of 18F-FDG PET/CT were evaluated based on documented changes of clinical management. Results In total, 43 patients were found to have positive lesions by 18F-FDG PET/CT, in which 40 were true recurrence,but 2 were pelvic abscess and 1 was radiation enterocolitis. Other 8 patients were found negative by 18F-FDG PET/CT and confirmed by pathology or follow-up. In patient-based analyses, the sensitivity, specificity, and accuracy of 18F-FDG PET/CT for the detection of tumor recurrence were 100% (40/40), 72. 73% (8/11),and 94.12% (48/51) respectively. In 7 patients, the clinical management was changed due to 18F-FDG PET/CT findings. Conclusion 18F-FDG PET/CT is an efficient tool for determining the recurrence of cervical cancer and instructing the clinical management.

OBJECTIVETo investigate obesity, overweight and related factors of Kazakh children aged from 6 to 13 years old in Yili, Xinjiang.

METHODSWith stratified cluster sampling method, 2438 Kazakh children aged 6 - 13 from eight elementary schools were recruited from the Yili Kazakh autonomy region from May to June in 2009. Height, weight, blood pressure, waist circumference and hip circumference were measured. Body mass index (BMI) value was used to determine overweight or obesity. The overweight and obesity distribution pattern of gender, age (6 - 7, 8, 9, 10, 11, 12, 13 - 14 years old group) and region (city, county and countryside) was analyzed. Logistic regression analysis was used to analyze the risk factors of overweight or obesity.

RESULTSThe prevalence of obesity and overweight in Yili Kazakh autonomy region was 1.64% (40/2438) (male: 1.62% (20/1232), female 1.66% (20/1206) (χ(2) = 0.69, P = 0.41)), and 5.13% (25/2438) (male: 4.79% (59/1232), female 5.47% (66/1206) (χ(2) = 0.59, P = 0.44)), respectively. The obesity prevalence of 6 - 7 year-old children was 3.72% (8/215), 2.30% (10/435) for 12 year-old group and 2.19% (6/274) for 13 - 14 year-old group. The difference of obesity and overweight prevalence among different age groups was significant (χ(2) = 14.29, P = 0.04). The prevalence of overweight was 8.77% (35/399), 6.92% (74/1069), 1.65% (16/970) (χ(2) = 42.09, P = 0.00) in city, county and countryside. And the prevalence of obesity was 2.75% (11/399), 2.43% (27/1069), 0.30% (3/970) (χ(2) = 18.13, P = 0.00) in city, county and countryside. Logistic regression analysis showed that children with family obesity history (OR = 2.73, 95%CI: 1.42 - 5.22) and culture level of fathers (OR = 1.65, 95%CI: 0.29 - 9.25) were independent risk factors of obesity. There was a correlation between blood pressure and waist-to-hip rate (r = 0.10, P = 0.00). Moreover, the correlation existed between systolic pressure (r = 0.47, P = 0.00), diastolic blood pressure (r = 0.37, P = 0.00) and BMI. Correlation existed between waist circumference (r = 0.81, P = 0.00), hip circumference (r = 0.78, P = 0.00) and BMI.

CONCLUSIONThere is no sex difference of overweight and obesity prevalence in Kazakh children aged from 6 to 13 year-old. Both family history of obesity and culture level of the fathers are factors of obesity and overweight to Kazakh children.

Adolescent ; Child ; China ; epidemiology ; Female ; Humans ; Male ; Obesity ; ethnology ; Overweight ; ethnology ; Prevalence ; Risk Factors

OBJECTIVETo study the association of fat mass and obesity associated gene rs9930506 polymorphism with overweight and obesity in the Hazakh Children.

METHODSPCR-restriction fragment length polymorphism was used to determine rs9930506 polymorphism in 118 patients with overweight or obesity and 141 controls. Serum lipid level including total cholesterol, triglyceride, high-density and low-density lipoprotein cholesterol, plasma glucose levels, and plasma insulin were monitored by using enzymatic method (Hitachi automatic clinical analyzer) and radioimmunoassay kit respectively.

RESULTSThe genotype distributions of the control group and overweight or obesity group were in the Hardy-Weinberg equilibrium. The frequencies of AA, AG and GG were 0.458, 0.492 and 0.050 in the overweight or obesity group and 0.582, 0.397 and 0.021 in the controls respectively. There was no significant difference in frequencies of AA, AG and GG genotypes between control group and overweight or obesity group (χ(2) = 4.795, P = 0.091), but the frequency of GG + AG genotype in overweight or obesity group (0.542) was higher than that in the controls (0.418) giving significant difference (χ(2) = 3.957, P = 0.047). The frequencies of A allele were 0.703 in the overweight or obesity group and 0.780 in the controls respectively. There was significant difference in frequencies of A allele frequency between controls and overweight or obesity group (χ(2) = 3.986, P = 0.046). In the overweight or obesity group, the plasma glucose levels, BMI and hip circumference were (4.93 ± 0.52) mol/L, (79.70 ± 11.73) and (21.61 ± 2.72) cm in the persons with GG + AG genotype and (4.69 ± 0.56) mol/L, (75.28 ± 11.52) and (19.92 ± 1.98) cm in those of AA genotypes respectively. The plasma glucose levels, BMI and hip circumference of the persons with GG + AG genotype were higher than those of AA genotypes and the statistical significance was also observed (t = 2.430, P = 0.017; t = 2.053, P = 0.042; t = 3.891, P = 0.000).

CONCLUSIONThe present findings suggest that rs9930506 polymorphism on chromosome 16q12.2 may be associated with the development of overweight or obesity in the Hazakh Children, and the polymorphism may have some influence on serum glucose levels, BMI and hip circumference in this population.

Alleles ; Asian Continental Ancestry Group ; genetics ; Body Mass Index ; Child ; China ; epidemiology ; Chromosomes, Human, Pair 16 ; Female ; Gene Frequency ; Genotype ; Humans ; Male ; Obesity ; epidemiology ; genetics ; Overweight ; epidemiology ; genetics ; Polymorphism, Single Nucleotide

Adult ; Aged ; Arthritis, Gouty ; diagnosis ; drug therapy ; pathology ; therapy ; Diagnostic Errors ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Treatment Outcome

OBJECTIVETo compare the mRNA expression of renin-angiotensin-aldosterone system in human subcutaneous and visceral adipose tissues.

METHODSTotal RNA was extracted from 12 human subcutaneous adipose tissues, 12 perirenal adipose tissue and 9 periadrenal adipose tissues. The expressions of angiotensinogen ( AGT) , renin, angiotensin converting enzyme ( ACE) , angiotensin converting enzyme 2 (ACE2), angiotensin I1 receptor type 1 (AT1), angiotensin II receptor type 2 (AT2 ), CYP11 B2, and their internal reference glyceraldehyde phosphate (GAPDH) were studied by reverse transcription-polymerase chain reaction. The ratios of each target genes were used to evaluate the expression levels of AGT, renin, ACE, ACE2, AT1, AT2, and CYP11B2 in different adipose tissues.

RESULTSThe mRNA expressions of AGT, ACE, ACE2, AT1, and AT2 were detected in human subcutaneous, perirenal, and periadrenal adipose tissues. However, CYPI B2 mRNA expression was not found in these three adipose tissues. The mRNA expressions of renin was only detected in perirenal and periadrenal adipose tissues, which was significantly higher in perirenal adipose tissues than in periadrenal adipose tissues ( P < 0. 05 ). The mRNA expressions of ACE and ACE2 in perirenal adipose tissues were significantly higher than that in subcutaneous adipose tissues ( P < 0. 05). The mRNA expressions of ACE were significantly higher than that of ACE2 in subcutaneous, perirenal, and periadrenal adipose tissues (P <0. 05). The mRNA expressions of AT1 were significantly lower than that of AT2 in periadrenal adipose tissues (P < 0. 05).

CONCLUSIONLocal renin-angiotensin system exists in the adipose tissues; however, aldosterone is not synthesized in the adipose tissues.

Adipose Tissue ; metabolism ; Adult ; Aged ; Aldosterone ; physiology ; Angiotensinogen ; biosynthesis ; Cytochrome P-450 CYP11B2 ; biosynthesis ; Female ; Humans ; Male ; Middle Aged ; Peptidyl-Dipeptidase A ; biosynthesis ; RNA, Messenger ; biosynthesis ; Receptor, Angiotensin, Type 1 ; biosynthesis ; Receptor, Angiotensin, Type 2 ; biosynthesis ; Renin ; biosynthesis ; Renin-Angiotensin System ; physiology ; Reverse Transcriptase Polymerase Chain Reaction

OBJECTIVETo investigate the relationship of leptin gene polymorphism with obesity in ethnic minority Hui and Uygur children in China.

METHODSSixty-eight ethnic minority (35 Hui and 33 Uygur) children with obesity and 69 age-matched minority (36 Hui and 33 Uygur) children without obesity were recruited from six primary schools in the sub-urban areas of Urumqi. Venous blood was sampled from all subjects after fasting for 12 hours. Leptin gene C2549A polymorphism was determined by polymerase chain reaction (PCR) and restriction fragment length polymorphism methods. Blood concentrations of lipids, leptin and insulin were measured with biochemical methods and radioimmunoassys, respectively.

RESULTSIn the 137 children tested, the prevalence of AA, AC and CC genotype was 9.5%, 33.6% and 56.9%, respectively. A allele frequency was significantly different between the two ethnic (i.e. Hui and Uygur) groups (P<0.05). A allele frequency and AA+ AC genotype frequency were not significantly different between obese and non-obese children in both ethnic groups (P>0.05). Blood leptin levels were not significantly different between obese and non-obese children with an AA+AC or CC genotype in both ethnic groups (P>0.05).

CONCLUSIONSLeptin gene polymorphisms exist in Hui and Uygur children. The C2549A polymorphism is not significantly associated with the prevalence of obesity in both Hui and Uygur children.

Child ; China ; ethnology ; Female ; Genotype ; Humans ; Leptin ; blood ; genetics ; Lipids ; blood ; Male ; Obesity ; blood ; genetics ; Polymorphism, Genetic

OBJECTIVECigarette smoke extract (CSE) can induce injuries of pulmonary II epithelial cells, activate nuclear factor-kappaB and increase tumor necrosis factor-alpha(TNF-alpha) secretion. This study aimed to investigate whether azithromycin can protect pulmonary II epithelial cells from injuries induced by CSE and relevant mechanisms.

METHODSPulmonary II epithelial cells (A549 cells) were cultured in vitro. After 48 hrs of culture the cells were randomly treated with serum-free DMEM only (blank control group), azithromycin + serum-free DMEM, CSE+ serum-free DMEM or CSE+azithromycin. Eight hours later the morphology of A549 cells, the activity of NF-kappaB and the levels of TNF-alpha were measured by inverted microscope, immunohistochemistry and ELISA.

RESULTSThe morphology and structure of A549 cells were changed, NF-kappaB activity increased (dark brown staining ) and TNF-alpha levels (0.307 +/- 0.036 pg/mL vs 0.234 +/- 0.028 pg/mL)increased in the CSE+ serum-free DMEM group compared with the blank control group (P < 0.01). CSE together with azithromycin treatment recovered partly the morphological injuries of A549 cells. It also attenuated NF-kappaB staining and decreased TNF-alpha levels from 0.307 +/- 0.036 pg/mL (CSE+serum-free DMEM group) to 0.269 +/- 0.009 pg/mL (P < 0.05).

CONCLUSIONSAzithromycin may inhibit NF-kappaB activity, decrease TNF-alpha secretion and thus lessen cytotoxicity of CSE to A549 cells.

Anti-Bacterial Agents ; pharmacology ; Azithromycin ; pharmacology ; Cells, Cultured ; Epithelial Cells ; drug effects ; Humans ; Immunohistochemistry ; Lung ; drug effects ; metabolism ; pathology ; NF-kappa B ; analysis ; Smoke ; adverse effects ; Tobacco ; adverse effects ; Tumor Necrosis Factor-alpha ; analysis