3-iodothyronamine（T1AM）is an endog enous derivative of thyroid hormone. It can also be used as exogenous drug. It can play pharmacological effects such as reducing cardiac output and coronary flow ，slowing heart rate ，promoting lipolysis ， reducing basic metabolism and improving learning and memory ability. Its regulatory effect on metabolism is similar to that of thyroxine，but regulatory effect on heart and thermogenic function is opposite to that of thyroxine. As a new chemical messenger ， T1AM can exert different pharmacological effects through a variety of receptors and signal pathways. This review summarizes the research progress of various pharmacological effects and mechanisms of exogenous T 1AM，in order to provide new therapeutic drugs of cardiovascular ，metabolic diseases and nervous system diseases.

In recent years, novel methods and concepts for the treatment of diabetic foot disease have emerged worldwide. This article summarizes the progress of clinical practice of diabetic foot, focuses on the revascularization of diabetic foot combined with lower limb arterial disease, such as endovascular debulking, drug-coated balloon and tibial transverse transport surgery, and the new wound repair technology of diabetes foot ulcer, such as stem cell therapy, platelet-rich gel and antibiotic loaded bone cement, and briefly introduces phage therapy.

Autism spectrum disorder can be differentiated into three subtypes (aloof, passive, and active-but-odd) based on social behaviors according to the Wing Subgroups Questionnaire (WSQ). However, the correlations between the scores on some individual items and the total score are poor. In the present study, we translated the WSQ into Chinese, modified it, validated it in autistic and typically-developing Chinese children, and renamed it the Beijing Autism Subtyping Questionnaire (BASQ). Our results demonstrated that the BASQ had improved validity and reliability, and differentiated autistic children into these three subtypes more precisely. We noted that the autistic symptoms tended to be severe in the aloof, moderate in the passive, and mild in the active-but-odd subtypes. The modified questionnaire may facilitate etiological studies and the selection of therapeutic regimes.
Autism Spectrum Disorder ; diagnosis ; Child, Preschool ; Factor Analysis, Statistical ; Female ; Humans ; Male ; Reproducibility of Results ; Social Behavior ; Surveys and Questionnaires ; Translating

Objective To investigate the relationship between heart rate variability ( HRV) and chronic complications in pa-tients with type 2 diabetes mellitus (T2DM).Methods A total of 96 patients with T2DM was given chronic complication assessment . Demographic data were obtained .Diabetic retinopathy , diabetic kidney disease , diabetic peripheral neuropathy ( DPN) , and peripher-al artery disease ( PAD) were diagnosed according to international clinical classification .The parameters of HRV in the patients with diabetes and non-diabetes were examined with24 h Holter recorder .Results The HRV parameters of type 2 diabetic patients were significantly lower than those of non-diabetes ( P <0.05 ) .HRV time domain parameters [ standard deviation of normal RR intervals (SDNN), standard deviation of 5-minute mean RR intervals (SDANN), root mean square difference among successive RR normal in-tervals ( RMSSD) ] were especially impaired in diabetic patients with retinopathy compared to those without retinopathy .HRV parame-ters except low-to-high frequency ratio ( LF/HF) and MNN were lower in diabetic patients with kidney disease than those without kid-ney disease .HRV parameters were no significant difference between patients with or without PAD .Conclusions HRV of diabetic pa-tient is lower.Diabetic retinopathy and kidney disease impact on the HRV .

The professional care by multi-disciplinary team and priority of prevention should be carried out in the treatment of diabetic foot disease to reduce diabetic amputation.This article describes the professional experience in the treatment of four complicated cases with diabetic foot disease and emphasizes the importance of the co-operation among different specialists,including diabetologists and wound,vascular,orthopedic surgeons,etc.as well as of varied therapies applied in staged management of the diabetic foot care,by treating these patients with diabetic foot disease as early as possible.

Objective To determine the mortality and associated risk factors in the patients with diabetic foot ulcers. Methods One hundred and sixty-three patients with diabetic foot ulcers hospitalized from January 2001 to December 2006 were followed up until December 2009. Mortality rates were derived from Kaplan-Meier survival curves. The prognostic factors were evaluated with Cox proportional hazard model. Results Follow-up was successful in 139 out of 163 patients, with a mean follow-up period of(3.71 + 1. 80)years. 55 patients(39 males and 16 females)died during the follow-up. The 5-year mortality was 45.8% and mean survival time was 5.38 years(95% CI 4.87-5.89). The median survival time was 6.83 years. Age, smoking, hypertension, coronary artery disease, and diabetic nephropathy were found to be independent prognostic factors for mortality. Conclusions Diabetic foot ulcers increased the mortality of diabetic patients. Age, smoking, hypertension, coronary artery disease, and diabetic nephropathy were predictive risk factors for mortality.

According to the alanine aminotransferase (ALT)level, 4 509 patients were assigned into group A (n=449, with raised ALT)and group B (n=4 060, normal ALT). Between the patients of group A and B, differences existed in age [(48.5 ± 11.3 vs 55.7 ± 11.4) years, P＜0.01], duration of diabetes [( 36.8 ±45.0 vs 56.2±58.8 ) months, P＜0. 01], body mass index[BMI, (27.7±3.9 vs 25.8±3.4) kg/m2, P＜0.01], waist-tohip ratio (0.95±0.06 vs 0. 93±0.07, P＜0. 01 ), diastolic blood pressure [( 78± 10 vs 75± 10) mm Hg, 1 mm Hg=0. 133 kPa, P＜0. 01], fasting blood glucose [(9.04±2.91 vs 8.63 ±3.05 ) mmol/L, P = 0. 008], 2 h blood glucose after meal[( 13.85±4.67 vs 13.07 ± 4. 92 ) mmol/L, P=0. 002], HbA1c(8. 11% ± 1.82% vs 7.74% ±1.96%, P＜0. 01 ), fasting serum insulin[( 10.59±7.31 vs 7.97±7.18) mU/L, P＜0. 01], postprandial insulin [(48.96±43.80 vs 35.25 ±32.37 ) mU/L, P＜0. 01], homeostasis model assessment for insulin resistance ( HOMA-IR, 4.11±-2.85 vs 3.00 ± 2.92, P＜ 0. 01 )、 triglycerides [( 2.77 ± 2.50 vs 2. 19 ± 2.99 ) mmol/L, P＜0. 01], and high-density lipoprotein-cholesterol [HDL-C, ( 1.20 ± 0. 30 vs 1.29 ± 0. 83 ) mmol/L, P = 0. 01].Logistic regression analysis showed that HbA1C, postprandial insulin, and HOMA-IR, uric acid and urinary albumin were positively, and HDL-C negatively related with the ALT level. It suggests that raised ALT seems to be an index related to the clustering of cardiovascular risk factors, insulin resistance, and earlier onset of type 2 diabetes.

Objective To evaluate biochemical characteristics and the trend of diabetic complications in patients with newly-diagnosed type 2 diabetes from 1994 to 2008. Methods We utilized the database of the diabetes complications assessment and analyzed the metabolic disorder and the diabetic complications in the patients with newly diagnosed diabetes. Results 2 085 cases were collected, including 1189 males and 896 females. The average age of onset of diabetes was 51.6±13.1 and 54.6±7.9 yrs respectively in 2008 and 1994. During 1994,no case was found in subjects aged 20-29 yrs and 5% of the patients were aged 30-39; but 2% of patients aged 20-29 and 16% aged 30-39 yrs were found in 2008. BMI was increased from 24.48±4.15 in 1994 to 26.03±3.63 in 2008. Percentage of patients with abnormal BMI ( ≥25 kg/m2 ), WHR [≥0.90 (male) or ≥0.85 (female)]increased significantly from 63.6%, 75.0%, and 71.4% in 1994 to 79.6%, 95.2%, and 93.8% in 2008,respectively. Both SBP and DBP were not significantly changed. The fasting blood and postprandial blood glucose,HbA1c decreased from 10.3 mmol/L, 15.2 mmol/L, 11.1% in 1994 to 9.0 mmol/L, 14.3 mmol/L, and 8.6% in 2008, respectively. The average TG level increased from 1.7 mmol/L in 1994 to 2. 1 mmol/L in 2008,however, TC and HDL level were not significantly changed. The prevalence of diabetic retinopathy decreased from 28.2% in 1994 to 3.9% in 2008. The prevalence of diabetic nephropathy increased from 17.7% in 1994 to 24.6% in 2008. The prevalence of diabetic cardiovascular disease increased from 14.3% in 1994 to 24. 1% in 2008. Compared with the patients without microvascular complications, the patients with microvascular complications had higher SBP, DBP, and HbA1c( 136/78 vs 130/77 mm Hg, 9.41% vs 9.11% ). The patients with macrovascular complications had older age, higher SBP, TC, and TG than those without macrovascular complications (53.4 vs 50.0 yrs; 132 vs 129 mm Hg ; 5.3 vs 5.1 mmol/L and 2.6 vs 2.1 mmol/L). Conclusions In the studied newly-diagnosed diabetic patients from 1994 to 2008, there were increasing incidences of obesity and hypertriglyceridemia. However, the prevalence of diabetic retinopathy decreased significantly, while that of nephropathy showed no significant change.Cardiovascular complications were markedly increased.

Objective To evaluate the feasibility and diagnostic accuracy of CE-MRA with low dose contrast agent by comparison with DSA in diabetic patients with peripheral arterial diseases. Methods ( 1 )Study in vitro: test tubes containing Gd-DTPA of different concentrations were scanned, and the relationship between signal intensities and concentrations of GD-DTPA was analyzed. DSA and CE-MRA with selected concentrations of Gd-DTPA were performed on stenotic vascular models to estimate the proper low dose of GD-DTPA for clinical applications. (2) Clinical applications: 78 diabetic patients with peripheral arterial diseases were scanned from the abdomen and pelvis station to the calf-foot station in a 3 T MR system with standard bolus chase 3D CE-MRA sequence after injection of 13 ml GD-DTPA . The image quality,diagnostic rate of stenosis of arteries in calf and degree of venous contamination were evaluated with Fisher's exact test. DSA images of 220 vascular segments in 22 patients ( 10 segments per patient) were acquired as the gold standard and compared with CE-MRA by using Kappa test. Results The MR signal intensities were proportional to the concentrations of contrast agent in present study, and all stenotic segments of vascular model were displayed by CE-MRA with GD-DTPA at lower concentration of 1.5 mmol/L. As for MRA images of 78 diabetic patients with low dose Gd-DTPA, about 97.4% (76/78) showed diagnostic image quality for pelvic and thigh stations. But the MRA images of lower extremities were interfered by the venous contamination significantly (P ＜ 0.01 ). Compared with DSA for 22 patients, the diagnostic sensitivity, specificity and agreement coefficient (Kappa value) of MRA were 96. 0% ( 168/175), 73.3%(33/45), and 0.72 (P＜0.01), respectively. Conclusion Using 3.0 T MR scanner, high quality CE-MRA of lower limb arteries can be obtained for clinical applications with contrast agent dose as low as 13 ml,which has comparable diagnostic sensitivity and specificity with DSA. But the limitation of venous contamination in MRA image should be resolved in further studies.

Objective To evaluate the effective of weight loss on blood glucose,lipid profile,and blood pressure in over-weight or obesity patients combined with impaired glucose tolerance(IGT).Methods Body weight of 91 over-weight or obesity IGT patients were managed by doctors and nurses.Body weight,waist circumference,blood glucose,lipid profile,blood pressure and liver function of the patients were compared at 3 months with baseline.Results After 3 months' intervention,the levels of body weight,waist circumference,fasting plasma glucose,postprandial glucose,systolic blood pressure,diastolic blood pressure,and glutamie oxalacetie transaminase (COT),instead of triglyeeride and hish-density lipoprotein cholesterol (HDL-C),were significantly reduced.Over weight or obesity IGT patients saw a 1.8 and 2.3 kg body weight loss,respectively.Decreased plasma glucose and blood pressure were found both in the over-weight group and in the obesity groups,but decreased waist circumference and GOT were found only in the over-weight patients.Conclusions Body-weight control may improve the blood glucose,blood pressure,central obesity,or fatty liver in over weight or obesity IGT patients.For those obesity patients,longer and stronger body weight control should be needed.