3.Relationship between contrast-enhanced ultrasound of renal cortical blood perfusion and SCr, BUN in rabbits with acute renal failure
Zhi JIANG ; Xiaoling HUANG ; Hong YANG ; Bo TU ; Liping LIU
Chinese Journal of Medical Imaging Technology 2010;26(4):597-600
Objective To evaluate the renal cortical blood perfusion changes in rabbits with acute renal failure (ARF) with gray scale contrast-enhanced ultrasound, and to explore the relationship between these changes and the blood creatinine (SCr), as well as the blood urea nitrogen (BUN). Methods Rabbit ARF models were established with 50% glycerin injected into the rabbits' thighs. Gray scale contrast-enhanced ultrasound was performed on the day before injection (T_0) and 1, 4, 8, 12 days (T_1, T_4, T_8, T_(12)) after injection. The renal cortex perfusion time-intensity curve (TIC) was analyzed, including parameters like arrival time (AT), time to peak intensity (TTP), amplitude of peak intensity (A) and slope rate of TIC (β) of renal cortex. Meanwhile the SCr and BUN were measured, the correlation between SCr, BUN and parameters were analyzed. Results Compared with the value of T_0, the value of TTP, A, β after injection (T_1, T_4, T_8) were statistically different, respectively (P<0.05), but the differences among T_1, T_4 and T_8 were various. No linear correlation between above parameters and SCr, BUN was found. Conclusion The renal cortical blood perfusion changes can be early observed with gray scale contrast-enhanced ultrasound, but there is no linear correlation between the changes of parameters and SCr, BUN.
4.Contrast-enhanced ultrasound in assessing renal cortical and medullary perfusion in acute renal failure in rabbits
Zhi JIANG ; Xiaoling HUANG ; Hong YANG ; Yong ZHANG ; Wenfang ZHANG
Chinese Journal of Interventional Imaging and Therapy 2010;7(1):54-57
Objective To assess the application of contrast-enhanced ultrasound (CEUS) in evaluation of the renal cortical and medullary perfusion changes before and after acute renal failure (ARF) in rabbits. Methods Rabbit ARF models were established with intramuscular 50% glycerin (12-15 ml/kg) injection into rabbits' thighs. One day before and after ARF models establishment, CEUS was performed on each rabbit. The renal perfusion time-intensity curve (TIC) was analyzed, including parameters like AT (arrival time), TTP (time to peak intensity), A (amplitude of peak intensity), AUC (area under the curve), β (slope rate of TIC) of renal cortex and medulla. Results The value of A and β before model establishment was (17.36±13.73) dB and (5.38±2.08) dB/s, respectively, both was significantly higher than those after glycerin injection ([6.59±4.25] dB and [1.58±1.41] dB/s, respectively) (P<0.05). The value of TTP and AUC before model establishment was (2.46±1.76) s and (329.31±171.70) dBs, both was significantly lower than those after injection ([5.93±4.80] s and [722.28±354.14] dBs, respectively) (P<0.05). No significant difference was found in AT of renal cortex and AT, A, TTP, AUC, β of renal medulla, nor in SCr or BUN. Conclusion CEUS can display the changes of perfusion image of the renal cortex of the ARF earlier than SCr and BUN.
5.Bartter's syndrome:report of 12 cases
Xing-Duan HUANG ; Bin YAO ; Zhi-Min HUANG ; Zhi-Hong LIAO ; Jian-Ping WENG ; Guo-Liang HU ; Yan-Bing LI ;
Chinese Journal of Endocrinology and Metabolism 1986;0(03):-
Twelve cases of Bartter's syndrome were reported and reviewed retrospectively.Usually vomiting was the first sympton in children,while fatigue was common in adults.Bartter's syndrome was characteristic of hypokalemia,metabolic alkalosis,elevations of plasma renin activity,serum angiotersinⅡand aldosterone and juxtaglomerular apperatus hyperplasia.Supplementation of potassium choloride was the main manner of therapy.
6.Identification of a novel mutation of C1 inhibitor gene in a Chinese family with hereditary angioedema.
Yu-xiang ZHI ; Hong-yu ZHANG ; Shang-zhi HUANG
Acta Academiae Medicinae Sinicae 2003;25(6):664-666
OBJECTIVETo identify the mutation of C1 inhibitor (C1 INH) gene in a Chinese family with hereditary angioedema (HAE).
METHODSPolymerase chain reaction and direct sequencing were used to identify the mutation type. The sequencing results were compared with the normal sequences in GenBank to find the mutation. In order to exclude the polymorphism, 30 normal volunteers were analyzed.
RESULTSOne novel mutation (17839 del C) was detected in 5 patients with HAE. The mutation was not found in controls.
CONCLUSIONThe mutation of C1 INH gene (17839 del C) is identified in the family. Molecular diagnosis can be made by detecting the mutation.
Angioedema ; genetics ; Chromosomes, Human, Pair 11 ; genetics ; Complement C1 ; genetics ; Complement C1 Inactivator Proteins ; genetics ; Exons ; Family Health ; Female ; Humans ; Male ; Pedigree ; Point Mutation ; Sequence Deletion
7.Analysis of epidemiological and clinical features of adenovirus infection in 80 children with acute respiratory tract infection.
Zhi-Ying HUANG ; Bao-Jin CHENG ; Hong LIN ; Xiao-Yu ZHANG ; Yu WAN
Chinese Journal of Virology 2014;30(4):408-411
By analyzing the epidemiological and clinical features of adenovirus in children with acute respiratory tract infection (ARTI), we provide a theoretical basis for early clinical diagnosis and treatment. Nasopharyngeal secretions were collected from 3480 children with ARTI, who were hospitalized at the No. 2 Hospital of Changzhou from January 2011 to December 2012. Adenovirus were detected using direct immunofluorescence assays. A total of 80 samples were positive for adenovirus (2.30%). The rate of adenovirus infection during 2011 was significantly higher than that in 2012, and the infection rate was higher in summer and autumn than in winter and spring. The infection rate was 1.14% among children aged < 1-year-old and the rates were higher among children in other age ranges. Adenovirus was found to be an important ARTI pathogen in children in Changzhou, mainly affecting children older than 1 year. ADV infections have various clinical presentations, but affected children tend to be severely ill with poor outcomes.
Acute Disease
;
epidemiology
;
therapy
;
Adenovirus Infections, Human
;
epidemiology
;
therapy
;
virology
;
Adenoviruses, Human
;
classification
;
genetics
;
isolation & purification
;
Child
;
Child, Preschool
;
China
;
Female
;
Hospitalization
;
Humans
;
Infant
;
Male
;
Respiratory Tract Infections
;
epidemiology
;
therapy
;
virology
;
Seasons
9.Clinical Features and Genetic Analysis of Pediatric Patients with Alagille Syndrome Presenting Initially with Liver Function Abnormalities
Yan LIU ; Hong WANG ; Chen DONG ; Jie-Xiong FENG ; Zhi-Hua HUANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2018;38(2):304-309
Alagille syndrome (AGS) is a multisystem disorder and caused by mutations in JAG1 or NOTCH2 gene.The diagnosis of AGS is hampered by its highly variable clinical manifestations.We performed a retrospective analysis on 16 children diagnosed as having AGS in recent five years in our hospital.Cholestasis was seen in 15 patients (93.8%),heart disease in 12 (75%),characteristic facies in 7 (43.8%),and butterfly vertebrae in 7 (43.8%).Ophthalmology examination was not performed on all the patients.Further,serum biochemical parameters were compared between AGS and 16 biliary atresia (BA) patients who were confirmed by surgery.Elevated liver enzymes were seen in all the patients.Serum total cholesterol (TC) (P=0.0007),alanine aminotransferase (ALT) (P=0.0056),aspartate aminotransferase (AST) (P=0.0114),gamma-glutamyl transferase (GGT) (P=0.035) and total bile acid (TBA) levels (P=0.042) were significantly elevated in AGS patients compared to those in BA cases.However,there were no significant differences in serum total bilirubin (TB),conjugated bilirubin (CB) and albumin (ALB) between the two groups.We identified 14 different JAG1 gene variations and 1 NOTCH2 gene mutation in 16 Chinese AGS patients.Our study suggested clinical features of AGS are highly variable and not all patients meet the classical diagnostic criteria.It was suggested that hypercholesterolaemia and significantly elevated GGT,TBA and ALT may be helpful to diagnose AGS.Genetic testing is integral in the diagnosis of AGS.
10.Changes of gene expressions of adiponectin in adipose tissue and adiponectin receptor R1 in skeletal muscle of type 2 diabetic rats
Hui YAO ; Han-Hua LIN ; Hong-Wei WANG ; Long-Jiang ZHANG ; Xiao-Yan HUANG ; Zhi XIA ;
Chinese Journal of Endocrinology and Metabolism 1986;0(03):-
The mRNA levels of adiponectin in adipose tissue and adiponectin receptor R1 in skeletal muscle of type 2 diabetic rats were examined by semi-quatitative RT-PCR.The expression of adiponectin receptor R1 was not altered in the skeletal muscle of type 2 diabetic rats as compared with normal rats.The serum adiponectin level was decreased in diabetic rats due to the decline of adiponectin mRNA level in adipose tissue and rosiglitazone improved the adiponectin deficiency.