Objective To explore the impact of waist-to-hip ratio (WHR) in type 2 diabetic probands on the phenotype of insulin resistance and β-cell function in normoglycemic first-degree relatives. Methods One hundred and eighty-six type 2 diabetic probands and 489 normoglycemic first-degree relatives were selected from 186 type 2 diabetes core families. 115 first-degree relatives (FDR1 group) of probands with low WHR (1st quartile: <0.86 for males and <0.84 for females) and 106 first-degree relatives (FDR2 group) of probands with high WHR (4th quartile: >0.92 for males and >0.89 for females) were identified to intensively study from 489 normoglycemic first-degree relatives. The homeostasis model assessment of insulin resistance (HOMA-IR) was used to estimate insulin sensitivity, and β-cell function was quantified as the ratio of the incremental insulin to glucose responses over the first 30 min (△I30/△G30) during the oral glucose tolerance test. The latter measure was also adjusted for the assay of insulin sensitivity as it modulated β-cell function (△I,,30>·△G-1,30·HOMA-IR-1). Results The body mass index, the waist circumference and waist-to-height ratio in female first-degree relatives, systolic blood pressure, triglyceride and HOMA-1R were significantly higher in FDR2 group than those in FDR1 group andhigh density lipoprotein cholesterol,△I30/△G30, △I-130·HOMA-IR-1were significantly lower in FDR2 group than those in FDRI group (P < 0.05 or P < 0.O1). The waist circumference and waist-to-height ratio in relatives of probands with low and high WHR were positively correlated with the HOMA-IR. However, the least square regression analysis showed that the slope from regression in FDR2 group were significantly steeper than thatin FDR1 group(both P <0.01). Conclusion The normoglycemic first-degree relatives of the type 2 diabetic probands with high WHR had much more evident phenotype of insulin resistance and decreased β-cell function, and a slight increase in abdominal obesity had a greater impact on insulin resistance.

Background and purpose:Integrinαvβ3 receptor plays an important role in promoting, sustaining and regulating the angiogenesis. It is overexpressed on neovascular endothelial cells and tumor cells. RGD peptide specifically binds to integrinαvβ3, which could evaluate growth status and invasiveness of tumor. This study aimed to investigate the biodistribution in healthy KM mice and micro PET/CT imaging in U87MG tumor-bearing mice of 18F-E[c(RGDfK)2]. Methods: 18F-E[c(RGDfK)2] was produced using an automated synthesis module via a simple one-step 18F-labeling strategy of the precursor 4-NO2-3-TFMBz-E[c(RGDfK)2]. The percentage activity of injection dose per gram of tissue (%ID/g) was calculated at 0.5, 1, 2, 4 h post injection of the probe. Micro PET/CT images of U87MG tumor-bearing nude mice with or without 18F-E[c(RGDfK)2] blocking were acquired at each time point. Results: The labeling efficiency and radiochemical purity of 18F-E[c(RGDfK)2] were 10% and 98%, respectively. 18F-E[c(RGDfK)2] was excreted via renal route, with a high blood clearance. The other organs had background-level activity accumulation. At 1 h, the%ID/g of kidney, liver, intestine, muscle and blood was (1.02±0.16)%ID/g,(0.24±0.06)%ID/g, (0.35±0.03)%ID/g, (0.13±0.03)%ID/g and (0.11±0.03)%ID/g 18F-E[c(RGDfK)2] had initial high tumor uptake [(5.2±0.56)%ID/g] and good tumor-to-background contrast (5.36) at 1 h post injection. Tumor uptake for blocking group was lower than those without blocking, and T/M reduced to 1.57. Conclusion: 18F-E[c(RGDfK)2] appears a promising PET molecular imaging probe targeting integrin αvβ3, with high tumor uptake. It could be suitable for prognosis evaluation of integrin-positive tumor, selection of vascular targeting therapy and therapy effect monitoring.

Objective: To evaluate the value of clinical application of Heart of the City type TJH-03A remote electrocardiogram recorder (remote ECG). Methods: A total of 1 014 community residents from Wuhan received ECG examination by Heart of the City type TJH-03A remote ECG recorder. Clinical and ECG data of all subjects were collected and analyzed. Results: There were 359 (35.40%) cases with normal ECG and 655 (64.60%) cases with abnormal ECG, after remote ECG examination . There were 581 cases had a variety of arrhythmia in 655 cases with abnormal ECG, so there were 828 cases times with abnormal ECG, in which there were （1）320 cases times (38.65%) with repolarization abnormality,（2）98 cases times(11.84%) with sinus bradycardia, （3）98 cases times (11.84%)with myocardial ischemia,（4）78 cases times (9.42%)with conduction block,（5）56 cases times(6.76%) with ventricular hypertrophy and high voltage,（6）43 cases times(5.19%) with atrial premature beats（7）37 cases times (4.47%)with atrial fibrillation,（8）35 cases times (4.23%)with sinus tachycardia,（9）24 cases times (2.90%)with ventricular premature beats, （10）19 cases times (2.29%)with suspected myocardial infarction according to ECG abnormality rate order. In addition, there were 5 cases times with QT interval prolongation, and abnormal ECG with abnormality rate ≤3 cases times: atrial tachycardia, atrial flutter, supraventricular tachycardia, ventricular tachycardia, Brugada wave, dextrocardia. Conclusion: Heart of the City type TJH-03A remote electrocardiogram recorder is convenient to use, it can perform remote electrocardiogram record, and find a variety of arrhythmias. It’s important for ECG diagnosis, especially for diagnosis of arrhythmias.

Background and purpose:16α-[18F]lfuoroestradiol (18F-FES) is an in vivo speciifc imaging agent for estrogen receptor (ER). We investigated the concordance between tumor ER status as determined by FES-PET and in vitro immunohistochemical assays. Methods: 18F-FES was prepared by ourselves. Twenty-six patients were enrolled (17 primary and 9 metastatic/recurrent). Patients underwent both 18F-FES and 18F-FDG PET/CT. Results:We found good overall agreement (96.15%) between in vitro ER assays and FES-PET. The ER status diagnosis sensitivity of 18F-FES was 93.33%and the speciifcity was 100%when using cut-off value of SUVmax≥1.5. There was a positive correlation between in vitro ER, PR assays and the SUVmax of 18F-FES while in vitro HER-2/neu assays correlatived negatively with 18F-FES SUVmax. Conclusion:These results suggested 18F-FES may be useful for studying the ER expression of all malignant lesions in patients with breast cancer and guiding individual therapy.

Objective:To compare the dosimetric differences between accelerated partial breast irradiation intensity modulated radiation therapy (APBI-IMRT) and whole breast irradiation with simultaneous integrated boost intensity modulated radiotherapy (WBI-SIB-IMRT) for early-stage breast cancer after breast-conserving surgery.Methods:A total of 35 patients with early-stage breast cancer in Jilin Province Cancer Hospital between July 2009 and December 2014 after breast-conserving surgery were enrolled. The targeted regions of APBI-IMRT and WBI-SIB-IMRT were created for each patient. The dosimetric difference comparison of the targeted region and normal tissues was evaluated by using dose volume histogram (DVH).Results:There was no significant difference in the dosimetric comparison of gross tumor volume (GTVtb) and planning gross tumor volume (PGTVtb) after correction of cumulative radiation effect (CRE) between WBI-SIB-IMRT group and APBI-IMRT group (both P > 0.05). The dose of clinical target volume (CTV) and planning target volume(PTV) in APBI-IMRT group was higher than that in WBI-SIB-IMRT group [CTV: (4 720±71) cGy vs. (3 889±79) cGy, t = 3.184, P = 0.027; PTV: (4 675±164) cGy vs. (3 807±199) cGy, t = 2.751, P = 0.032] after CRE correction. Compared with WBI-SIB-IMRT group, the dose of ipsilateral lung tissue and left heart tissue in APBI-IMRT group was decreased after CRE correction [(558.5±8.9) cGy vs. (1 304.9±34.4) cGy, t = -7.328, P = 0.001; (35.5±5.3) cGy vs. (843.0±41.5) cGy, t = -8.137, P = 0.001]. V 5/3.6 Gy, V 10/7.3 Gy, V 15/10.9 Gy, V 20/14.6 Gy, V 25/18.2 Gy and V 30/21.9 Gy of the ipsilateral lung and V 30/21.9Gy, V 40/29.2Gy of left heart in all breast cancer patients after two chemotherapy treatments had significant differences (all P = 0.001). Conclusion:Compared with WBI-SIB, APBI-IMRT can improve the dose distribution in target area and reduce the volume of high dose irradiation in organs at risk.