Objective To evaluate the feasibility, safety and efficacy of a new homemade device for percutaneous closure of secundum atrial septal defects (ASDs) Methods Percutaneous closure of surgically created fossa ovalis ASD was attempted in 8 piglets The device was braided from Nitinol wires in the shape of two flat discs with a short connecting waist with a diameter corresponding to that of the defect to be closed Polyethylene filling was implanted to enhance thrombogenicity Pulmonary arteriography with levo phase was obtained before closure and immediately after closure Transthoracic echocardiography with color Doppler was used in all animals during closure and in follow up examinations The animals were killed at various intervals up to 6 months after occlusion for microscopic examination Results Successful placement of the device was achieved in all the 8 animals All ASDs were completely occluded in 1 month, observed by transthoracic echocardiography Postmortem gross and microscopic examination of the 8 specimens 1 to 6 months after placement showed complete or near complete fibrous neoendocardium coverage of both the right and left atrial discs Conclusion These observations show the feasibility of occlusion of secundum ASDs by the homemade device with the advantages of easy placement and repositionability in piglets

Objective To investigate the relationship between angiotensinogen(AGT)gene M235T polymorphism and the onset of chronic heart failure(CHF).Methods Polymerase chain reaction combined with restrictive fragment length polymorphism was used to detect the M235T variants of AGT gene in 111 CHF cases,accompanied with 110 healthy controls.Results Three kinds of AGT genotypes were detected,which were MM、MT and TT genotype separately.The frequencis of TT genotpye were higher in CHF cases than in healthy controls,and there was statistical significance in old aged group(P =0.042).The odds ratio(OR)with CHF of TT genotype was 3.367 compared with non-TT genotypes in old aged group.Conclusion The M235T polymorphism of AGT gene is associated with the occurrence of CHF in old aged group and TT genotype might be one of the genetic risk factors of CHF in such place of old aged population.

Objective To explore the Application value of hand acupuncture holographic method in endosco -py.Methods According to randomized controlled holographic method ,200 patients who underwent endoscopy were divided into the hand acupuncture holographic group (68 cases),the hand acupuncture group (65 cases) and the con-trol group(67 cases).The hand acupuncture holographic group pushed the needle sticking and made use of press and hand acupuncture combination of both methods ,and the hand acupuncture group was taken hand-hole method ,and the control group was taken normal gastroscopy operation .A questionnaire survey ( after checking the content of what dis-comfort,fear,are you willing to accept gastroscopy retest ) was taken and observed the patient's discomfort after the op-eration that nausea,vomiting,abdominal distension and pain,salivation volume,mirror smooth interpolation degree. Results The subjective feelings of the hand acupuncture holographic group were better than those of the hand acu -puncture group and the control group (all P<0.05);The adverse reactions of the hand acupuncture holographic group were lower than those of the hand acupuncture group and the control group before and during the endoscopy ( all P<0.05).Conclusion The hand acupuncture holographic therapy is a combination method of hand side of the second metacarpal holographic acupuncture massage gastroscopy which can reduce pain and fear of the patients ,and its side effects is small ,and it is inexpensive ,the risk factor is small ,and it is easy to operate easy to spread .

Objective To study the clinical experience of extracorporeal circulation management in modified total arch replacement combined with stented elephant trunk.Methods Fifty-eight patients with Stanford A aortic dissection underwent modified total arch replacement combined with stented elephant trunk.With the modified surgical technique,the technology of extracorporeal circulation was also modified with bilateral antegrade cerebral perfusion,the management of the temperature and blood protection.Results All patients were operated successfully.The operative time was 248-485 (396 ± 67) min,extracorporeal circulation time was 175-260 (181 ± 33) min,cross clamp time was 64-104 (85 ± 12) min,stop circulation time was 22-48 (32 ± 5) min,and selective cerebral perfusion time was 26-54 (39 ± 7) min.The ventilator assisted breathing time was 5.0-35.5 (23.0 ± 4.5) h,and ICU monitoring time was 24-140 (88 ± 12) h.Postoperative complications included transient neurologic deficit in 3 cases (5.2％,3/58),renal dysfunction in 5 case (8.6％,5/58),and pulmonary infection in 4 cases (6.9％,4/58).Conclusion To modified total arch replacement combined with stented elephant trunk,the modified management of extracorporeal circulation with bilateral antegrade cerebral perfusion,the management of temperature and blood protection,has a low prevalence of morbidity and mortality.

Corticotropin-releasing hormone(CRH) is the key regulator during stress reaction which integrates endocrine,autonomic,immune and behavioral responses to stressors.Receptors mediating the action of CRH have been identified as CRH-R1,CRH-R2 and CRH-R3.In the process of stress reaction,CRH mainly interacts with CRH-R1 and CRH-R2,producing multiple physiological and pathological effects.In recent years,by employing transgenic animals,selective CRH-receptor antagonists and special CRH-receptor agonists,the effect of CRH receptors on stress reaction and its mechainisms have been deeply realized.

Objective To evaluate the prospective electrocardiograph (ECG)-gated 128-slice spiral CT angiography in the diagnosis of complex congenital heart disease and airway abnormality in children.Methods Eighty children with congenital heart disease received prospective (n =40) or retrospective ECG-gated 128-slice spiral CT angiography (n =40).All of the patients underwent ultrasound cardiogram (UCG) within one week before CTA exmination.The image quality and the effective radiation dose were statistically analyzed using independent samples t test and x2 test.The surgical results were taken as the diagnostic standards,and the preoperative prospective and retrospective CT angiography data were compared with UCG results using x2 test.Results The effective dose of prospective ECG-gated CT angiography[(1.00 ± 0.26)mSv] was reduced by 86％ as compared with the retrospective ECG-gated CT angiography[(7.37 ± 0.52) mSv] (t =69.296,P ＜ 0.01).Image quality was graded 0 in none patients,graded 1 in 2 patients who underwent prospective ECG-gated CT angiography,graded 2 in 8 and 1 patient who received prospective and retrospective ECG-gated CT angiography respectively,and graded 3 in 30 and 39 patients who underwent prospective and retrospective ECG-gated CT angiography,respectively.There was no significant difference in image quality between prospective and retrospective ECG-gated CT angiography (x2 =0.044,P ＞ 0.05).The definitive diagnosis of extracardiac vascular anomalies was made in 98.3％(59/60) of patients by using prospective and retrospective ECG-gated CT angiography,which were significantly superior to UCG results[(76.7％ (46/60),76.7％ (45/59),respectively] (x2 =13.144,12.644,P ＜ 0.01),and there was no significant difference in the definitive diagnosis between prospective and retrospective ECG-gated CT angiography (x2 =0.001,P ＞ 0.05).The definitive diagnosis of the cardiac/large-vessel malformations was made in 100％ of the patients by both prospective and retrospective ECG-gated CT angiography,and there was no significant difference between 128-slice spiral CT angiography results and UCG results [97.2％ (35/36),97.3％ (36/37),respectively] (x2 =1.014,0.001,P ＞0.05).In the cardiac malformations,the definitive diagnosis by prospective and retrospective ECG-gated CT angiography was 88.7 ％ (47/53) and 92.5 ％ (49/53),and there was no significant difference between 128-slice spiral CT angiography results and UCG results [98.1％ (52/53),98.1％ (52/53),respectively](x2 =3.824,1.889,P ＞ 0.05),and no significant difference in the definitive diagnosis was observed between prospective and retrospective ECG-gated CT angiography (x2 =0.442,P ＞ 0.05).In addition,the 128-slice spiral CT angiography detected airway abnormality in 9 cases who underwent prospective or retrospective ECG-gated CT angiography.Conclusion The prospective ECG-gated 128-slice spiral CT angiography exhibits great application value in the preoperative diagnosis of complex congenital heart disease,which helps to develop surgical program and evaluate surgical risks.

Child ; Humans ; Vascular Calcification ; diagnosis

[ ABSTRACT] AIM:To investigate the characteristics of the intestinal microbial flora in the pregnant women with congenital heart disease fetus ( PW group) and normal pregnant women ( NW group) .METHODS: Stool samples were collected from 15 NW and 17 PW cases.The bacterial genomic DNA was extracted.The 16S rDNA was amplified by PCR, and the second generation of Illumina sequencing was conducted.RESULTS: We obtained 2 696 276 ( NW group) and 2 445 530 ( PW group) optimized sequences.The coverage was greater than 97%.We obtained 77 243 operational taxono-mic units ( OTUs) in NW group and 75 600 OTUs in PW group after a 97%similarity merge.In NW group, the Chao 1 in-dex and the Shannon index were greater than those in PW group.The diversity analysis of microbial population indicated that they were mainly composed of Firmicutes, Proteobacteria and Actinobacteria.In family, the Bifidobacteriaceae and Cori-obacteriaceae were significantly different through analysis of variance.CONCLUSION: The Bifidobacteriaceae and Cori-obacteriaceae may play an important role in the occurrence of congenital heart disease.

AIM:To investigate the effects of osteogenic induction media and the medias containing different concentration of calcium on the induction of osteogenic differentiation of human renal fibroblasts in vitro.METHODS: Culturedhuman renal fibroblasts were divided into 5 groups in this experiment: osteogenic induction group (osteogenic inductionmedia), CaⅠgroup (0.5 mmol/L Ca2 + media), CaⅡgroup (1.5 mmol/L Ca2 + media), Ca Ⅲ group (2.5 mmol/LCa2 + media) and control group (PBS).The cell activity in each groups was measured by MTT assay .At 9th day, the cellcalcium Alizarin red S staining and alkaline phosphatase (ALP) Gomori calcium cobalt staining were performed respectivelyto observe the formation of calcium nidus and the expression of ALP .In addition, the expression of Runt-related transcriptionfactor 2 (Runx2) at mRNA and protein levels was determined by real -time PCR and Western blot, respectively.RE- SULTS: The remarkable positive signs which represented the formation of calcium nidus and the deposit of calcium objectsin all experiment groups were observed .The mRNA and protein expression of Runx2 in osteogenic induction group increasedin accordance with the induction time .Compared with control group, the mRNA and protein expression of Runx2 inthe CaⅠ ~Ⅲ groups increased gradually in a calcium concentration dependent manner at the 9th induction day.CON- CLUSION: Human renal interstitial fibroblasts show the potential activity in osteogenic differentiation induced by osteogen -ic induction media or high level calcium in vitro, which may be account for the cytological formation of the Randall ’splaque in the kidney.

Aim To study the anti-stress depression effect of Jiaweisinisan(JWSNS)and it's mechanism of N-methyl-D-aspartate(NMDA)receptor channel in hippocampus.Methods Chronic mild unpredictable stress(CMUS)was adopted to establish the rat depres-sion model.Before and after model establishing,the sucrose consumptions and the weight of rats were detected.TTC dyeing of hippocampus brain slices ex vivo were used to detect the situation of hippocampus neuron damage and the protective effect of serum containing components of JWSNS.The opening probability and the average opening time of NMDA receptor channels were detected by attach on cell patch clamp,the Ca2+ concentrations in single cell of hippocampus neurons were detected by Tillvis ION software.Results CMUS could decrease the sucrose preference and the weights of rats(P