1.The level of serum adiponectin in patients with incipient chronic kidney disease
Junli GUO ; Ning JIA ; Hua ZHANG ; Huitao ZHANG ; Wenying ZHOU
Journal of Chinese Physician 2008;10(7):871-873
Objective To examine the levels of serum adipaneetin in patients with incipient chronic kidney disease (CKD, GFR≥ 60ml/min, and identify the relationship between serum adiponectin and albumin (ALB), urinary protein excretion amount, blood lipid and renal function. Methods Forty-two CKD patients and twenty normal healthy persons were involved in this study. These patients were divid- ed into two groups: nephrotic syndrome and non-nephrotic syndrome. The level of serum adiponectin, serum ALB, urinary protein excretion amount, blood lipid, renal function were measured and compared. Results The level of serum adiponectin in nephritic syndrome patients [(21.9±11.3) mg/L] and non-nephrotic syndrome patients [ ( 11.0±7.0) mg/L] was significantly higher than that in normal healthy per- sons[ (5.6±3.3) mg/L] ( P<0.01 ), and the level of serum adiponectin in nephritic syndrome patients was higher than that in non-ne- phrotic syndrome patients( P <0.01 ). Correlative analyses revealed a negatively correlation between serum adiponectin and serum total pro- tein(TP, ALB, BMI( r=-0.5680, r = -0.6241, r = -0.4083,respectively), and a positive correlation between serum adiponectin and urinary protein excretion amount ( r =0.4083). Stepwise regression analyses showed that serum adiponoctin was highly influenced by BMI, ALB and urinary protein excretion amount. Conclusion Serum adipanectin was markedly increased in incipient CKD, especially in patients with macroalbuminura. The effect of high level adiponectin in CKD was still not clear.
2.Research on the acquirement and purification of human umbilical cord mesenchymal stem cells and their differentiation abilities to chondrocytes
Jia ZHOU ; Zunli SHEN ; Yuqing JIN ; Wei LIU ; Hua SHEN
Chinese Journal of Microsurgery 2009;32(3):210-212,illust 6
Objective To explore the efficient way to purify and to enrich umbilical cord mesenchymal stem cells which have abilities to differentiate into chondrocytes. Methods Umbilical cord was acquired from new born infants and chopped into 1 mm2 cubics, then they were pretreated with colleganase and trypsin so as to get the mixed cell suspension. CD45(-),CD90(+) cells were acquired from the mixed cell suspension via FCM sorting and were cultured in the medium as umbilical cord mesenchymal stem PO cells. The PO cells were detached and passaged by multiplex collagenase NB4 and the positive rate of CD90 and CD45 of the P1-P3 cells were observeed via FCM ; the P3 cells were induced to differentiated into chondrocytes. Results FCM results showed that the positive rate of CD90 on P1, P2, F3 was (80.86 ± 7.85)%,(95.86± 3.28)%,(97.15± 1.43)%, while the positive rate of CD45 on P1, P2, P3 cells was (2.53 ±0.28)% and (0.97 ± 0.48)% and (0.05 ± 0.01)% respectively; P3 cells had differenciated into chondrocytes. Conclusion FCM presorting and Multiplex collagenase detachment procedures can swiftly acquire highly purified human umbilical cord mesenchymal stem cells which have the ability to differentiate into chondroeytes.
3.Effect of Stimulating “Zhiyang” (DU 9) with Electric Acupuncture Apparatus on Contents of cAMP and cGMP in Plasma of Experimental Acute Myocardial Ischemic Rabbits
Bao-hua LIU ; Jia-jia JIN ; Xiao-chun ZHOU ; Yong LI
Chinese Journal of Rehabilitation Theory and Practice 2006;12(8):687-688
ObjectiveTo observe the effect of stimulating “Zhiyang” (DU 9) with electric acupuncture apparatus on contents of cAMP and cGMP in plasma of experimental acute myocardial ischemic rabbits.Methods40 rabbits were randomly divided into four groups: the normal control group (A), model group (B), model plus electric acupuncture on “Neiguan” (P 6) group (C) and model plus electric acupuncture on DU 9 group (D). The acute myocardial ischemic model was established by pituitrin (2 U/kg) injected into the vein of rabbit. Electrocardiogram (ECG) of Ⅱ leads was observed and contents of cAMP and cGMP in plasma were tested after electric acupuncture by radio immunoassay.ResultsThe cAMP contents of the group C and group D were lower than that of the group B significantly ( P<0.01), but not different from that of the group A ( P>0.05), and there was no difference between the group C and group D. The contents of cGMP were not different among four groups ( P>0.05).ConclusionPuncturing DU 9 can raise the myocardial endurance to the insufficiency of blood and oxygen. The effects of electric acupuncture on DU 9 and P 6 are the same.
5.PRELIMINARY STUDY ON AN ANTIBIOTIC-PRODUCING BACTERIUM
Xi-Qian LAN ; Jun-Hua HU ; Hong-Xiu WEN ; Jia-Lian CHEN ; Ze-Yang ZHOU ;
Microbiology 1992;0(05):-
An antibiotic-producing bacterium, which was numbered as 20 #-5, was separated from the soil in Chongqing. It was identified as the member of pseudomonas. Gram positive bacteria are badly suppressed by it. The antibiotic secreted by 20 #-5 can endure 100℃ for half an hour, and it can also go through the ultrafiltration membrane with pores of 0.22?m.
6.Suppression of Mdr1 gene using RNA interference in cultured rat astrocytes induced by coriaria lactone
Tian-Hua YANG ; Xin-Wang CHENG ; Lin-Yu TIAN ; Jia GENG ; Lei CHEN ; Dong ZHOU ;
Chinese Journal of Neurology 2001;0(03):-
Objective To reverse P-glycoprotein-mediated muhiple drug resistance using RNA interference(RNAi)in cultured rat astrocytes.Methods Astroeytes overexpressing P-glyeoprotein induced by coriaria lactone were transfected with the short-hairpin RNA expression vector-p-SIREN shuttle designed to target Mdrl mRNA.The mRNA level of Mdrl gene was evaluated by real-time PCR;the P-glycoprotein was examined by immunocytochemistry and image analysis,meanwhile the rhodamine efflux was assessed by flow cytometry.Results The astrocyte model overexpressing P-glycoprotein were established and successfully transfected with the short-hairpin RNA expression vector-p-SIREN shuttle.The mRNA level of Mdrl gene was knocked down by 67.70%(P
7.Ultrasound assessment of recanalization after carotid endarterectomy for the treatment of subtotal or complete occlusion of carotid artery
Yumei LIU ; Lili WANG ; Chen LING ; Chun DUAN ; Yinghua ZHOU ; Lingyun JIA ; Liqun JIAO ; Yang HUA
Chinese Journal of Cerebrovascular Diseases 2014;(8):407-410
Objective To evaluate the short-term and long-term effects in patients of carotid artery subtotal or complete occlusion after carotid endarterectomy ( CEA) using vascular ultrasound. Methods A total of 107 consecutive patients were diagnosed as carotid artery occlusive disease with DSA and treated with CEA at Beijing Xuanwu Hospital,Capital Medical University from January 2005 to January 2014 were enrolled retrospectively. Sixty-three of them had subtotal occlusion ( the carotid artery stenosis rate 95% to 99%) and 44 had complete occlusion. The occurrence of perioperative complications of all patients was documented. The follow-up study used outpatient follow-up and telephone tracking. The patients of surgical recanalization were followed up with ultrasound at 1 week, 3, 6, 12, and 24 months after procedure. The clinical prognosis, restenosis, vascular structure and hemodynamic changes of the patients after CEA were documented. Results (1) Of the 107 patients,86 (80. 4%) achieved recanalization after procedure and 21 (19. 6%) did not. The incidence of stroke and death was 4. 7% (5 cases) within 30 days after procedure,among them the incidence of subtotal occlusion group was 4. 8% ( n=3 cases) and the complete occlusion group was 4. 5% (2 cases). (2) Within one week after procedure,the peak systolic velocity ( PSV) ,end diastolic velocity ( EDV) ,and pulsatility index ( PI) of the ipsilateral middle cerebral artery in the recanalization patients increased significantly (120 ± 39 cm/s vs 60 ± 17 cm/s,50 ± 18 cm/s vs 33±11cm/s,and0.96±0.20vs0.67±0.14,respectively).Thereweresignificantdifferences(allP<0. 01). Carotid artery ultrasound showed that the local vessel diameters of the original lesions in the recanalization patients were widened as compared with preoperation (4. 4 ± 1. 1 and 3. 6 ± 1. 0 mm). There was significant difference (P<0. 01). (3) Sixty-nine patients with recanalization were followed up for 1 to 60 months( the median time was 12 months) . One to six months after procedure,the patency rate of the patients was 95. 6%(n=66),>6 to 12 months was 94. 2%(n=65),>12 to 24 months was 94. 2%(n=65),and more than 2 years was 91. 3%(n=63). Conclusion Vascular ultrasound can conduct short-term and long-term follow-up for carotid artery occlusive disease after CEA. The degree of blood flow improvement should be identified and restenosis should be found in time after procedure.
8.Types of vertebral artery occlusion and their compensatory hemodynamic changes influence to posterior circulation ischemia
Yinghua ZHOU ; Yang HUA ; Lingyun JIA ; Lili WANG ; Chun DUAN ; Weihong HOU
Chinese Journal of Cerebrovascular Diseases 2017;14(8):424-428,433
Objective To evaluate the correlation between the types of vertebral artery occlusion and their compensatory hemodynamic changes and posterior circulation ischemia using color Doppler flow imaging combined with transcranial color-coded sonography.Methods From June 2015 to June 2016,A total of 108 patients with vertebral artery occlusion confirmed by vascular sonography,digital subtraction angiography (DSA) or CT angiography (CTA) were enrolled retrospectively.According to the magnetic resonance imaging (MRI)-diffusion weighted imaging (DWI) findings,they were divided into posterior circulation infarction (n=78 in infarction group) and non-posterior circulation infarction (n=30 in TIA group).Color Doppler flow imaging and transcranial color Doppler ultrasonography were used to examine the contralateral vertebral artery extracranial diameter, peak systolic velocity(PSV) and end diastolic velocity(EDV) of bilateral extracranial and intracranial vertebral arteries.The differences of the vertebral artery occlusion types,establishment of collateral circulation and hemodynamic changes of the contralateral vertebral artery were compared between the two groups.Results The patients with single vertebral artery occlusion in the infarction group and TIA group were 69 (88.5%) and 26 (86.7%) respectively;those with bilateral vertebral artery occlusion were 9 (11.5%) and 4 (13.3%) respectively.There was no significant difference in the number of vertebral artery occlusion between the two groups (χ2=0.000,P=1.000).The proportion of patients with vertebral artery occlusion in intracranial segment in the infarction group was higher than that in the TIA group (70.5% [55/78] vs.36.7% (11/30);χ2=10.444,P=0.001).The proportion of patients with the establishment of collateral circulation in the infarction group was lower than that in the TIA group (14.1% [11/78] vs.43.3% (13/30);χ2=10.711,P=0.001).The peak systolic velocity (PSV) and the end diastolic velocity (EDV) of contralateral extracranial vertebral artery in patients with single vertebral artery occlusion in the TIA group were higher than those in the infarction group (65±21 cm/s vs.57±15 cm/s,25±8 cm/s vs.20±7 cm/s,t=2.043 and 2.606 respectively,all P<0.05).Conclusion The establishment of collateral circulation and hemodynamic compensation of the contralateral vertebral artery after vertebral artery occlusion were closely associated with the occurrence of posterior circulation ischemia.
9.Effect of survivin gene-transfection on cytokine-induced apoptosis in NIT-1 cells
Mingtong XU ; Muchao WU ; Dan LIU ; Feng LI ; Shengneng XUE ; Jia ZHOU ; Li YAN ; Hua CHENG
Chinese Journal of Endocrinology and Metabolism 2008;24(2):210-211
Overexpression of survivin may partly protect the NIT-1 cells(mouse insulin-secreting cells) from cytokine-induced apoptosis.In addition, NIT-1 cells transfected with survivin had an slightly improved response of insulin secretion to glucose stimulation.
10.Effect of globular adiponectin on the function of NIT-I cells under high glucose medium
Jia ZHOU ; Yan LI ; Chuan YANG ; Mingtong XU ; Fangping LI ; Li YAN ; Hua CHENG ; Zuzhi FU
Chinese Journal of Endocrinology and Metabolism 2009;25(3):316-317
The effect of globular adiponectiin (gAd)on the function of NIT-1 cells under high glucose medium was investigated. The results showed that gad could completely block the increase of NADPH oxidase components p47phox expression and recover mRNA expression of pancreatic duodenal homeobox-I ,paired box gene 6,glucose transpoter 2,and glucokinase except neurogenic differentiation factor 1 (P<0.05 or P<0.01). Whereas,impaired insulin secretion and mRNA expression at high glucose concentration were not significantly improved by gAd.