ABSTRACT
<p><b>OBJECTIVE</b>Waist circumference, as a brief indicator of visceral obesity, is associated with multi-metabolic disorders and cardiovascular diseases. The present study was aimed to find out the relationship between waist circumference and carotid intima media thickness (C-IMT), as well as the best waist circumference cutoff for identifying C-IMT elevation in Chinese male patients with newly-diagnosed diabetes.</p><p><b>METHODS</b>Five hundred and seventy-eight patients from Department of Endocrinology and Metabolism in Shanghai Sixth People's Hospital affiliated to Shanghai Jiao Tong University were enrolled. Both physical examination (for measurement of waist circumference) and carotid ultrasonography (for measurement of C-IMT) were performed.</p><p><b>RESULTS</b>After grouping according to the quartiles of C-IMT, the waist circumference increased across all its quartiles. The waist circumference in 3rd and 4th quartiles (90.7±9.8 cm and 90.8±9.6 cm) was significant higher than in 1st and 2nd quartiles (P<0.05). When subjects were divided into 4 groups according to waist circumference, the C-IMT of subjects with waist circumference 90-95 cm was significant higher than that of subjects with waist circumference 85-90 cm and less than 85 cm respectively (P<0.05). Both spearman and partial correlation analysis showed that C-IMT was positively correlated with waist circumference (P<0.01). C-IMT was found significantly elevated with the increase of waist circumference. Multiple stepwise regression analysis showed that waist circumference was one of the independent risk factors of C-IMT. After an average of 2.23±0.85 years follow up, there was a significant elevation of C-IMT in the group with baseline waist circumference over 90 cm P<0.05), while no significant difference was detected in the group with baseline waist circumference less than 90 cm (P=0.27). Logistic regression showed that baseline waist circumference over 90 cm was associated with a relative risk to C-IMT elevation of 1.132 (95% CI 1.043-1.431, P<0.05).</p><p><b>CONCLUSION</b>Among newly-diagnosed diabetic male patients, waist circumference over 90 cm not only reflects sub-clinical atherosclerosis in early stage, but also predicts the progression of atherosclerosis.</p>
Subject(s)
Adult , Aged , Aged, 80 and over , Humans , Male , Middle Aged , Young Adult , Carotid Intima-Media Thickness , Diabetes Mellitus , Waist CircumferenceABSTRACT
<p><b>OBJECTIVE</b>Prader-Willi Sydrome (PWS) is a human disorder related to genomic imprinting defect on 15q11-13. It is characterized by a series of classic features such as hypotonia, hyperphagia, obesity, osteoporosis, typical facial and body dysmorphosis, hypogonadism, mental and behaviour disorders. Our study was designed to precisely detect the microdeletions, which accounts for 65%-70% of the PWS.</p><p><b>METHODS</b>Physical and laboratory examinations were firstly performed to diagnose PWS clinically, and to discover novel clinical features. Then the patient was screened with bisulfite-specific sequencing and precisely delineated through high-density array CGH.</p><p><b>RESULTS</b>With the bisulfite-specific sequencing, the detected CpG island in the PWS critical region was found homozygously hypermethylated. Then with array CGH, a 2.22 Mb type II microdeletion was detected, covering a region from MKRN3, MAGEL2, NDN, PWRN2, PWRN1, C12orf2, SNURF-SNRPN, C/D snoRNAs, to distal of UBE3A.</p><p><b>CONCLUSIONS</b>Array CGH, after the fast screening of Bisulfite-specific sequencing, is a feasible and precise method to detect microdeletions in PWS patients. A novel feature of metacarpophalangeal joint rigidity was also presented, which is the first time reported in PWS.</p>