2.Association between single nucleotide polymorphism of macrophage migration inhibitory factorrs1007888 and the pathogenesis of gestational diabetes mellitus
Ying ZHAN ; Yuping WANG ; Chao LI ; Shiguo LIU ; Qun GAO
Chinese Journal of Obstetrics and Gynecology 2013;(5):326-329
Objective To investigate the association between single nucleotide polymorphism (SNP) of macrophage migration inhibitory factor (MIF) gene-rs1007888 and the pathogenesis of gestational diabetes mellitus (GDM).Methods A total of 120 GDM pregnant women (GDM group) and 165 healthy pregnant women (control group) from Affiliated Hospital of Medical College,Qingdao University were recruited from June 2011 to July 2012.Their age,gestational week,height and weight were recorded.The levels of fasting blood glucose (FBG) and fasting insulin (FIN) were determined.Body mass index (BMI),the hemeostasis model assessment-insulin resistance (HOMA-IR) and hemeostasis model assessment-β cell function (HOMA-β) were calculated.DNA was extracted from fasting blood samples.SNP of MIFrs1007888G/A was determined by DNA sequencing.The FBG,FIN,HOMA-IR and HOMA-β were compared between GDM group and the control group.They were also compared among pregnancies withdifferent genotypes.Results (1) GDM group had higher FBG,FIN and HOMA-IR levels,but lower HOMA-β than the control group (all P < 0.05).(2) MIF-rs1007888 SNP genotype frequencies of GG,GA and AA were 37.5%,45.8% and 16.7%,and the allelic frequencies of G and A were 60.4%,39.6% in GDM group; However,in the control group,the frequencies of GG,GA and AA were 26.1%,54.5% and 19.4%,and the allelic frequencies of G and A were 53.3%,46.7%,respectively.The distributions of MIF genotypes in GDM patients were significantly different from the healthy subjects (P < 0.05).No significant difference of MIF-rs1007888 allele distributions was observed between GDM group and the control group (P >0.05).(3) The FBG,FIN and HOMA-IR in pregnant women with GG genotype were statistically higher than those with GA or AA genotypes,while HOMA-β was lower in women with GG genotype (all P <0.05).Conclusions The SNP of MIF rs-1007888 was related to the insulin resistance and pancreatic β cell function of pregnant women.GG genotype of MIF-rsl007888 might be a genetic susceptible factor in the pathogenesis of GDM.
3.Role of circulating microRNA-22 in pathogenesis of idiopathic pulmonary arterial hypertension
Chao ZHENG ; Qun LIU ; Zhengrong HUANG ; Rong TANG ; Wuyang ZHANG ; Ziguan ZHANG ; Delong LI ; Zhipeng ZENG
Chinese Journal of Emergency Medicine 2012;21(1):57-60
Objective To investigate the value of plasma miR-22 in diagnosis of idiopathic pulmonary arterial hypertension ( IPAH ),and its role of regulation mechanisms in the pathogenesis of the disease.Methods Circulating miR-22 levels of IPAH patients and healthy controls were evaluated by RTPCR.The silico analysis of targets for miR-22 was taken, and followed by eGFP reporter assay for verification of predicted target gene Myc binding protein (MYCBP). Results Compared with healthy controls,the expression of plasma miR-22 in IPAH patients was significantly decreased (P < 0.01 ).The area under curve (AUC) of ROC curve was 0.744.MYCBP was a real target of miR-22 confirmed by silico analysis and eGFP reporter assay. Conclusions The expression of plasma miR-22 was significantly decreased in IPAH patients,and it could serve as a potential biomarker for diagnosis.The miR-22 might be involved in the pathogenesis of the disease through promoting its target gene MYCBP to activate the c-Myc pathway.
4.Association between single nucleotide polymorphism of rs4753426 of melatonin receptor 1B gene and gestational diabetes mellitus
Ying ZHAN ; Furong LIU ; Chao LI ; Qun GAO ; Shiguo LIU ; Yuping WANG
Chinese Journal of Obstetrics and Gynecology 2014;(4):276-280
Objective To investigate the genotypic and allele frequency differences of melatonin receptor 1B (MTNR1B)-rs4753426 between gestational diabetes mellitus (GDM) pregnancies and normal pregnancies , and to explore the association between single nucleotide polymorphism ( SNP ) of rs4753426 and gestational diabetes mellitus.Methods Totally 93 GDM pregnancies and 165 normal pregnancies were recruited from the Affiliated Hospital of Qingdao University.The age, gestational weeks, height, early pregnant weight , and the levels of fasting plasma glucose ( FPG) , fasting insulin ( FIN) were determined in every participants.By using PCR and DNA sequencing , we detected the distribution of the rs 4753426 genotypes and alleles in all individuals.The homeostasis model assessment-insulin resistance ( HOMA-IR) and the homeostasis model assessment-βcell function ( HOMA-β) were calculated.The allele and genotype frequencies and the FPG , FIN, body mass index ( BMI) , HOMA-IR, HOMA-βlevels between GDM group and control group were compared.Results (1) The genotype frequencies in the GDM group and the control group of rs4753426-CC, CT, TT were 72.0% (67/93), 21.5% (20/93), 6.5% (6/93), and 53.9%(89/165), 40.0% (66/165), 6.1% (10/165) respectively.The allele frequencies in the GDM group and the control group of T and C were 17.2% ( 32/186 ) , 82.8% ( 154/186 ) and 26.1% ( 86/330 ) , 73.9% ( 244/330 ) respectively.There were statistical differences in genotype frequencies and allele frequencies between two groups ( all P<0.05 ).( 2 ) The levels of FPG , FIN and HOMA-IR in the GDM group were obviously higher than those in the control group (P<0.05).The level of HOMA-βwas lower in the GDM group than that of the control group (P<0.05).(3)The FPG of CC and CT genotypes was higher than that of TT genotype in the GDM group (P<0.05), while the level of HOMA-βwas lower than that of TT genotype (P<0.05).Conclusions The MTNR1B-rs4753426 SNP is associated with the pathogenesis of GDM, and rs4753426 is the predisposing locus of GDM.The C-allele is the susceptibility allele of GDM.
5.Early intervention of atherosclerosis in type 2 diabetic patients with microalbuminuria
Jian-Ming HOU ; Qing-Ming LIN ; Jian-Wei LI ; Wei-Te ZHUANG ; Gang CHEN ; Chao-Qun ZHANG ; Li-Xiang LIN ;
Chinese Journal of Endocrinology and Metabolism 2000;0(06):-
A total of 160 type 2 diabetic patients were divided into microalbuminuria(42 cases)and normoalbuminuria(118 cases)groups.Multivariate analysis demonstrated that the presence of microalbuminuria was independently associated with brachial-ankle pulse wave velocity(baPWV)and intima-media thickness(both P
6.Diagnostic features of pathological fractures located in extremities caused by bone tumor or tumor like lesion
Yan-cheng LIU ; Yong-cheng HU ; Qun XIA ; Bao-shan XU ; Ning Jl ; Hong-chao HUANG ; Zhong-li ZHANG
Chinese Journal of Orthopaedics 2011;31(9):944-948
ObjectiveTo explore the clinical characteristics of pathological fracture in extremities caused by bone tumors or tumor-like lesions. MethodsFrom August 2002 to December 2010, 139 patients with pathological fractures were entered in the study, including 79 males and 60 females with an average age of 31.1 years. Fractures included tumor-like lesion in 55 cases, benign tumor in 13, giant cell tumor (GCT)in 7, primary malignant tumors in 28, and metastatic tumors in 36. Forces induced to fractures were classified into four grades: spontaneous fracture, functional activity, minor injury, severe injury. Age, fracture location, histological results, fractures forces, prodromes, and misdiagnosis were all observed. Chi-square test were use to compare forces and prodromes within different tumors. ResultsThe highest morbidity rate is 32.4%(45/139) which lies in 11-20 years old. The cites of fractures including femurs in 71 cases, humerus in 36, tibia in 15, fingers in 7, radiuses in 4, fibula in 3, ulnas in 2, and metatarsus in 1. Fracture forces include spontaneous fractures in 29 cases, functional activity in 42, minor injuries in 65, and traumatic injuries in 3. Sixty-seven patients(48.2%) had local prodromes. The prodromes of both malignant tumors and metastatic tumors were more than benign tumors. Twenty cases experienced misdiagnosis with average delay time of 12 weeks. ConclusionMinor injury forces and local prodromes are clinical key features of pathological fractures. Both of them are key points of avoiding misdiagnosis.
7.The clinical application of plantar medial perforator artery based reverse island medial dorsal pedal neurocutaneous vascular flaps.
Li-Qun CUI ; Jin-Gang CHEN ; Ming ZHANG ; Wan-Chao ZHAO ; Rui MA
Chinese Journal of Plastic Surgery 2009;25(3):178-180
OBJECTIVETo explore the clinical effect of plantar medial perforator artery based reverse island medial dorsal pedal neurocutaneous vascular flaps.
METHODS12 cases with soft tissue defects of forefeet were treated by plantar medial perforator artery based reverse island medial dorsal pedal neurocutaneous vascular flaps. The flap size ranged from 3.0 cm x 3.5 cm to 5.5 cm x 8.5 cm.
RESULTAll flaps survived completely. The patients were followed up for 6 - 24 months. The texture and flexibility of the flaps were normal with no ulcer. The sensation improved with the two-point discrimination of 7 - 10 mm. The cosmetic and functional results were satisfactory. The wounds at donor site healed primarily.
CONCLUSIONSThe flaps have expanded size for large defects with good flexibility, thickness and texture. It is easily performed with less morbidity to main artery.
Adult ; Female ; Foot Injuries ; surgery ; Humans ; Male ; Middle Aged ; Skin Transplantation ; Soft Tissue Injuries ; surgery ; Surgical Flaps ; blood supply ; innervation ; Tibial Arteries ; surgery ; Young Adult
9.Treatment of Thoracic Spine and Spinal Cord Injury
Zhi-cheng ZHANG ; Tian-sheng SUN ; Chao-qun YE ; Dajiang REN ; Zhi LIU ; Fang LI ; Shuqing LIU ; Shaoting XU
Chinese Journal of Rehabilitation Theory and Practice 2006;12(4):336-338
ObjectiveTo analysis the clinical features of thoracic spine and spinal cord injury (SCI) and summarize the inclusive standard of cellular transplant clinical trial for SCI.MethodsThe data of 72 cases with thoracic spine and spinal cord injury from 1990 to 2005 were analyzed retrospectively.ResultsMean follow-up period was 20 months (6~48 months). There was no recovery in 12 spinal cord injury without radiographic abnormality (SCIWORA) patients, but improvement of urine function in 4 cases. 5 cases of 52 fracture-dislocation complete injury were improved to grade B (sense recovery), rate of recovery was 9.6%; recovery rate was 62.5% in incomplete injury. Sense recovery of all cases was better than motor recovery. Partial cases appeared spasm paralysis relief.ConclusionIncidence rate of complete injury is high and recovery is bad in thoracic spine and spinal cord injury. The inclusive standard of cellular transplant clinical trial for SCI is old complete thoracic spinal cord injury without residual compression.
10.Neonatal lupus erythematosus: analysis of 8 cases
Qun YANG ; Xiao-Mei SHAO ; Yun CAO ; Chao CHEN ; Guo-Qiang CHENG ; Yi-Yun SHI ; Li-Jun ZHOU
Chinese Journal of Pediatrics 2008;46(z1):56-60
Objective Neonatal lupus erythematosus (NLE) is an uncommon" passive autoimmune disease, which is associated with transplacental passage of maternal antibodies. It is often misdiagnosed as intrauterine infection or sepsis. The main purpose of this retrospective study was to summarize its clinical manifestations related with pathogenesis.Methods Data of all the NLE neonates, including clinical manifestations, immunochemical evidence of serum antinuclear antibodies (ANA), antibody to Ro/Sjogren's syndrome A ( anti-Ro/SSA), antibody to La/Sjogren' s syndrome B (anti-La/SSB) and anti-dsDNA antibodies in both infants and mothers, and images from head ultrasound and CT scans were analyzed. Follow-up was performed until one and half years of age or when all the clinical abnormalities had been resolved.Results Totally 8 cases (3 males and 5 females ) seen between September 2003 and February 2006 met the diagnostic criteria of NLE, in whom 4 were small for gestational age and one was born prematurely. Mean gestational age was (38.1 ± 1.9 ) weeks, mean birth weight (2605 ± 420) g, mean admission age (22.4 ± 27.7 ) days (2 hours-72 days) and mean age of onset (9.4 ± 12. 1)days (0-28 days). The common clinical manifestations included cutaneous lupus lesions (8 infants ), neural system abnormalities (2 infants ) and congenital heart block (2 infants). Annular, erythematous or desquamative lesions were seen in skin and all disappeared before 6 months of age. One patient presented with third degree atrio-ventricular block and was delivered by cesarean section because of " fetal distress" He did not recover by the end of one and half years follow-up. One infant was hypotonic with delayed neuro-motor development initially and during follow-up with both abnormal neonatal behavioral neurological assessment (NBNA) and imaging findings. Brain CT scan showed generalized low density involving periventricular and deep white matter at one week of age. At the age of one and a half years, he presented with normal mental development index determined by Child Development Center of China (CDCC) infant intelligence mensuration. Other abnormal clinical findings such as hepatosplenomegaly, anemia, thrombocytopenia, cholestasis and elevated liver enzyme activities were all resolved before 6 months of age. Only 3 mothers of the NLE infants were diagnosed as systemic lupus erythematosus (SLE) before parturition and only one received partial therapy. At least anti-Ro/SSA antibody or anti-La/SSB antibody or ANA was found in the affected patients. Seven cases had circulating anti-Ro and/or anti-La antibodies in the mothers and in the newborns, while ANA was positive in seven newborns and in all mothers. All the clinical symptoms disappeared before 18 months ot age except for congenital heart block. No special intervention was applied.Conclusions Serum auto-antibodies should be investigated to rule out NLE when a newborn infant has congenital heart block or rashes or thrombocytopenia, although there is no maternal history of SLE. Central nervous system abnormalities in NLE are likely to be a transient phenomenon and whether it will cause long-term sequelae is uncertain.