Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 11 de 11
Filter
Add filters








Year range
1.
Article in Chinese | WPRIM | ID: wpr-712070

ABSTRACT

Objective To examine the morphology and emptying score of the left atrial appendage (LAA) by real-time three-dimensional echocardiography (RT-3D TEE) in patients with atrial fibrillation (AF), and to identify the independent risk factors for left atrial thrombosis. Methods In total, 90 patients who underwent RT-3D TEE examination in Zhuhai People's Hospital from January 2015 to January 2017 were enrolled, including 53 with AF (AF group) and 37 without AP (NAF group). Of the 53 cases of AF, 11 had LAA thrombus (thrombus group), 13 had spontaneous development (spontaneous development group), and 29 had no abnormal LAA (non-abnormal group). RT-3D TEE was used to measure and calculate the LAA lobe number, emptying fraction, width index (LAA-WI), length index (LAA-LI), open area index (LAA-OI), maximum volume index (LAA-VImax), minimum volume index (LAA-VImin), ejection fraction (LAA-EF), velocity (LAA-v), and maximum volume index (LA-VImax). Analysis of variance was used to compare LAA lobe number among the thrombus group, spontaneous development group, non-abnormal group, and NAF group, and LSD-t test was adopted for further comparisons between any two groups. The t-test was used to compare the emptying fractions measured by the two-dimensional area method, three-dimensional area method, and three-dimensional volume method between the AF group and NAF group, as well as age, LAA-WI, LAA-LI, LAA-OI, LAA-VImax, LAA-VImin, LAA-EF, LAA-v, LA-VImax, and lobe number between the thrombus group or spontaneous development group and non-abnormal group. Logistic regression analysis was used to analyze the independent risk factors for left atrial thrombosis. Results The average number of LAA lobes in the thrombus group, spontaneous development group, non-abnormal group, and NAF group were (3.57±0.77), (3.28±0.99), (2.57±0.68), and (2.76±1.13), respectively. The average number of LAA lobes was higher in the thrombus group than in the spontaneous development group, non-abnormal group, and NAF group, and the difference between the thrombus group and NAF group was statistically significant (t=2.294, P<0.05). The emptying fractions measured by the two-dimensional area method, three-dimensional area method, and three-dimensional volume method were significantly lower in the AF group than in the NAF group (t=8.671, 7.082, 10.432, all P<0.05). LAA-WI, LAA-OI, LAA-VImax, LAA-VImin, LA-VImax, and lobe number in the thrombus group or the spontaneous development group were all significantly greater than those in the non-abnormal group [(18.27±2.14) mm/m2vs (12.76±1.93) mm/m2, (3.45±0.46) cm2/m2vs (2.64±0.37) cm2/m2, (6.63±0.73) ml/m2vs (4.72±0.48) ml/m2, (4.22±0.53) ml/m2 vs (2.51±0.22) ml/m2, (4.57±0.32) ml/m2vs (4.21±0.28) ml/m2, (3.62±0.11) vs (2.57±0.08)], while LAA-EF and LAA-v were significantly smaller than those in the non-abnormal group [(34.12±2.31)% vs (48.09±2.74)%, (29.11±1.08) cm/s vs (48.18±2.11) cm/s] (t=9.849, 7.107, 11.000, 14.787, 4.367, 40.471, 19.814, 42.417, all P < 0.001), although there was no significant difference in age or LAA-LI. Logistic regression analysis showed that LAA emptying fraction was an independent risk factor for thrombosis or spontaneous development ( OR=2.323, 95% CI: 1.471-2.821). Conclusions Using RT-3DTEE to evaluate the complex structure of LAA is feasible and accurate. Increased lobe number and decreased emptying fraction are associated with thrombosis. Decreased emptying fraction is an independent risk factor for thrombosis.

2.
Journal of Chinese Physician ; (12): 1017-1020,1024, 2018.
Article in Chinese | WPRIM | ID: wpr-705943

ABSTRACT

Objective To observe the effect of microRNA-613 (miR-613) on the biological behavior of human renal cell carcinoma cells and explore its molecular mechanism.Methods The synthesized miR-613 mimics and miR-NC were respectively transferred into 786-0 cells by Lipofectamine 3000 and divided into experimental group and control group.Real time quantitative polymerase chain reaction (qPCR) was used to detect the expression of miR-613 in cells of two groups to verify the transfection success.The proliferation of 786-0 cells was detected by methyl thiazolyl tetrazolium (MTT) assay and the migration of 786-0 cells was detected by Transwell migration assay.Bioinformatics predicts the target gene of miR-613.Dual luciferase reporter assay validates the targeted relationship between miR-613 and target genes,and their binding sites.qPCR and Western blot were used to detect the expression of target genes.Results qPCR test results showed that the expression of miR-613 in the experimental group (16.22 ± 1.08) was significantly higher than that in the control group (1.06 ± 0.20),with statistically significant difference (P < 0.01).The results of MTT showed that the cells in the experimental group showed a decrease in absorbance value at the d-th point after transfection (P < 0.05).Transwell cell migration test results showed that the cells in the control group and experimental group migrated from the upper chamber of Transwell to the lower chamber of the cells were respectively (95.55 ± 17.88) and (199.10 ± 22.74),with statistically significant difference (P < 0.05).Bioinformatics predicts that the target gene of miR-613 is Cortactin (CTTN).Dual luciferase reporter assay confirmed that miR-613 can target CTTN gene (P < 0.05).miR-613 can significantly inhibit the CTTN gene expression in renal cell carcinoma cells (P < 0.01).Conclusions Upregulation of miR-613 expression can inhibit the proliferation and migration of renal cell carcinoma cells,and its possible molecular mechanism is that miR-613 inhibits the expression of CTTN gene.

3.
Article in Chinese | WPRIM | ID: wpr-670005

ABSTRACT

Objective To investigate the safety and efficacy of mechanical thrombectomy (MT) compared with In?tra-arterial Thrombolysis (IAT) treatment in patients with severe acute ischemic stroke (AIS) caused by large cerebral ar?tery occlusion. Method The patients with AIS caused by large cerebral artery occlusion and underwent MT or IAT from 2005 May to 2014 May was included. A retrospective analysis was conducted on the onset to emergency(OTE)time, emergency to acupuncture(ETA)time, acupuncture to recanalization (ATR) time, stroke severity as measured by the Na?tional Institutes of Health Stroke Scale (NIHSS) score, and site of arterial occlusion on magnetic resonance angiography (MRA). A comparison was made between MT and IAT patients in rates of recanalization, symptomatic intracranial bleed?ing (SIB), mortality, and functional outcome. Three-month favourable outcome was defined as a modified Rankin Scale (mRS) score≤2. Result One hundred and two AIS patients were treated with MT and 50 with IAT. There was no differ?ence between MT and IAT groups with regard to demographics, onset NIHSS score (13.37±6.95 vs. 12.70±6.11;P=0.572) and discharge NIHSS score (8.40 ± 6.69 vs. 7.53 ± 7.28, P= 0.522) and the change of NIHSS score (3.87 ± 7.14 vs. 4.26 ± 5.42, P=0.766). There were significantly differences between MT and IAT groups in the OTE time (Median 300 min vs. 120 min,Z=-5.704,P=0.000) , ATR time (Median 30 min vs. 65 min,Z=-5.011,P=0.001) ,recanalization (91.2%vs. 60.0%,P =0.01),the rate of AIB(21.7% vs. 36.0%,P =0.046),3-month mortality (16.6% vs. 26.0%,P =0.043). The above parameters were better in MT group than in the IAT group. There were no significant differences between MT and IAT groups in the rate of SIB (12% vs. 16%,P =0.055), the NIHSS change(Median 3 vs. 4,Z =-0.236,P =0.823) and mRS score on 90d ( 48.2%vs. 46.0%, P=0.823). MT patients had significantly higher percentages of stent use (22.5%vs. 8%,P=0.018) . The Recanalization for ICA(81.8%vs. 55.6%,P=0.048),BA(93.1%vs. 55.6%,P=0.032)and MCA( 97.5% vs. 60.0%,P =0.026)was higher in MT group than in IAT group .The SIB rate for ICA(13.8% vs. 33.3%,P =0.000),BA(13.8%vs. 33.3%,P=0.000)was lower in MT group than in IAT group . The mortality rate of was significant?ly lower in MT than in IAT group for MCA (2.5%vs. 20.0%,P=0.000) . the good outcome rate for BA was higher in MT group than in IAT group(41.3%vs. 22.2%,P﹤0.01). Conclusions Compared to IAT,MT can provide broader time win?dow,higher recanalization rate and better outcome in patients with severe acute ischemic stroke (AIS) caused by large ce?rebral artery occlusion.

4.
Article in Chinese | WPRIM | ID: wpr-455077

ABSTRACT

Objective To analyze the clinical features of hyperperfusion syndrome occurring after carotid artery stenting, and to discuss its nursing measures. Methods Among 220 patients who received carotid artery stenting, nine developed hyperperfusion syndrome after stent implantation. Their clinical materials were retrospectively analyzed. The nursing measures, including properly controlling blood pressure, relieving brain edema, monitoring cerebral blood flow, medication with sedation drug, stopping or reducing antiplatelet therapy, close observation of blood pressure and clinical symptoms, cooperation with physicians to control the blood pressure and to dynamically make reexamination, etc. Results Of the nine patients with hyperperfusion syndrome, complete recovery was achieved in eight at the time of discharge and death due to intracranial hemorrhage occurred in one. Conclusion The key point of nursing for patients with hyperperfusion syndrome is close cooperation with physicians to control the patient ’s blood pressure so as to ensure a proper cerebral blood flow.

5.
Chongqing Medicine ; (36): 3897-3900, 2014.
Article in Chinese | WPRIM | ID: wpr-459490

ABSTRACT

Objective To investigate the mechanism of AS2 O3 inducing the apoptosis of myelodysplastic syndrome(MDS) cell line SKM-1 .Methods SKM-1 cells were incubated with AS2 O3 ,and then the cellular morphology was observed ,flow cytometry was used to determine the apoptosis ,RT-PCR was used to detect the expressions of Bcl-2 ,Bax and caspase-3 mRNA .Results 0 .25、0 .50 μmol/L AS2 O3 could not markedly induce the apoptosis of SKM-1 cells (P>0 .05) .But 2 .00、8 .00、32 .00 μmol/L of AS2 O3 could obviously promote the apoptosis of SKM-1 cells .With the increase of the acting time and concentration of AS2 O3 ,the apoptosis rate increased ,too(P<0 .01) ,the expressions of anti-apoptotic gene Bcl-2 mRNA decreased (P<0 .01) ,the expressions of promoting apoptosis gene Bax and caspase-3 mRNA increased (P<0 .01 ,P<0 .05) .Conclusion 2 .00、8 .00、32 .00 μmol/L of AS2O3 may promote the apoptosis of SKM-1 cells through down-regulating the expression of Bcl-2 gene and up-regulating the ex-pressions of Bax and caspase-3 genes .

6.
Article in Chinese | WPRIM | ID: wpr-458320

ABSTRACT

Objective To evaluate the value of the application of ultrasonic elastography and ultrasound contrast imaging on thyroid microcarcinoma(TMC). Methods The in-patients with thyroid lesions admitted in the Second People's Hospital of Foshan City from January 2013 to April 2014 were enrolled. Two-dimensional ultrasonography was used to screen the 162 solid thyroid nodules with a diameter ≤10 mm;they were examined by ultrasonic elastography and ultrasound contrast imaging respectively,and the result of pathological examination was regarded as the golden standard to compare the sensitivity and specificity between ultrasonic elastography and ultrasound contrast imaging for the diagnosis of TMC. Results The pathological results showed there were benign nodules 118 and malignant nodules 44 in number. The sensitivity,specificity,incidence of accuracy,positive predictive value and negative predictive value of the diagnosis of TMC by ultrasonic elasticity imaging,ultrasound imaging,and elasticity imaging combined with ultrasound imaging were much higher than those by two-dimensional ultrasonography〔sensitivity:88.64%(39/44),90.91%(40/44),95.45%(42/44)vs. 81.82%(36/44);specificity:91.53%(108/118),92.37%(109/118),95.76%(113/118)vs. 85.59%(101/118);accuracy:90.74%(147/162), 91.97%(149/162),93.26%(151/162)vs. 84.56(137/162);positive predictive value:79.59%(39/49),81.63%(40/49),83.67%(41/49)vs. 67.92%(36/53);negative predictive value:95.58%(108/113),96.46%(109/113), 97.35%(110/113)vs. 92.66%(101/109),all P<0.05〕. Conclusion For the diagnosis of TMC,both ultrasonic elastography and ultrasound contrast imaging have rather high value,and when they are combined together to be applied for the diagnosis,the result is the best.

7.
Article in Chinese | WPRIM | ID: wpr-747986

ABSTRACT

OBJECTIVE@#Our previous study revealed many genes differentially expressed in human laryngeal squamous cell carcinoma tissues (LSCC) and related adjacent normal tissues. We verificated the differentiated expressions of target genes, possibly related to LSCC. And these results can be foundations of further study of these target genes function.@*METHOD@#SENP1, CD109, Laminin alpha 2, Laminin alpha 3 were selected according to the cDNA microarray results. The expression of these genes mRNA and protein were detected by RT-PCR and Western blot in 12 cases of LSCC and related adjacent normal tissues.@*RESULT@#The mRNA expression of SENP1, CD109 and Laminin alpha 3 were significantly higher while Laminin alpha 2 were significantly lower in LSCC tissues than in corresponding adjacent normal tissues by Semiquantitative RT-PCR. Western blot analysis revealed SENP1, CD109 protein expression were significantly higher in LSCC tissues than in corresponding adjacent normal tissues.@*CONCLUSION@#SENP1, CD109, Laminin alpha 2 and Laminin alpha 3 may correlated with tumorigenesis and development of LSCC and can provide beneficial clue for study pathogenesis of LSCC in molecular level.


Subject(s)
Aged , Aged, 80 and over , Antigens, CD , Genetics , Carcinoma, Squamous Cell , Genetics , Cysteine Endopeptidases , Endopeptidases , Genetics , GPI-Linked Proteins , Genetics , Gene Expression Regulation, Neoplastic , Humans , Laminin , Genetics , Laryngeal Neoplasms , Genetics , Male , Middle Aged , Neoplasm Proteins , Genetics , Oligonucleotide Array Sequence Analysis
8.
Article in Chinese | WPRIM | ID: wpr-747929

ABSTRACT

OBJECTIVE@#This study was to investigate the expression and significance of Integrins subunits in laryngeal squamous cell carcinoma (LSCC).@*METHOD@#The expression of Integrins subunits was detected by cDNA microarray in 4 cases of primary LSCC tissues and corresponding adjacent normal tissues. Semi-quantitative reverse transcription polymerase chain reaction (RT-PCR) were used to identify the different expression of Integrins subunits in 24 cases of primary LSCC tissues and corresponding adjacent normal tissues.@*RESULT@#A cDNA microarray analysis revealed significant changes in the expression of Integrins subunits, with IntegrinalphaV, Integrinbeta8 being up-regulated and Integrinalpha8 being down-regulated. The result of RT-PCR was consistent with that of cDNA microarray. The mRNA levels of IntegrinalphaV and Integrinbeta8 were significantly higher in LSCC tissues than that in corresponding adjacent normal tissues (1.0131 +/- 0.4780 vs 0.7591 +/- 0.4678 for IntegrinalphaV, P<0.05, 1.7362 +/- 1.3849 vs 1.2267 +/- 0.9363 for Integrinbeta8, P<0.05). The mRNA levels of Integrinalpha8 were significantly lower in LSCC tissues than that in corresponding adjacent normal tissues (0.2646 +/- 0.2622 vs 0.5457 +/- 0.3827, P<0.05).@*CONCLUSION@#The expression of IntegrinalphaV, Integrinbeta8, Integrinalpha8 were significantly up-regulated or down-regulated in laryngeal squamous cell carcinoma, which may relate to tumorigenesis and development of laryngeal squamous cell carcinoma.


Subject(s)
Aged , Aged, 80 and over , Carcinoma, Squamous Cell , Metabolism , Pathology , Humans , Integrin alpha Chains , Genetics , Metabolism , Integrin alphaV , Genetics , Metabolism , Integrin beta Chains , Genetics , Metabolism , Laryngeal Neoplasms , Metabolism , Pathology , Male , Middle Aged , Neoplasm Proteins , Metabolism , Neoplasm Staging
9.
Article in Chinese | WPRIM | ID: wpr-748297

ABSTRACT

OBJECTIVE@#To diagnose the mycotic otitis media correctly and to explore the most adequate treatment for the disease.@*METHOD@#Thirty-six inpatients (39 ears) with mycotic otitis media in Nanjing Drum Tower Hospital from Jan. 2003 to Dec. 2007 were analyzed retrospectively. Morphous of the fungi, the methods and efficacies of the treatment were analyzed respectively.@*RESULT@#According to the fungal cultures, 27 ears were induced by mold fungus and 12 ears were induced by budding fungus. Among these 36 patients (39 ears), myringoplasty accompanied local antifungal cream were applied in one ear, mastoidectomy with canal wall down and/or tympanoplasty accompanied with oral antifungal medication were administrated in 35 ears, only oral antifungal drugs were used in 3 ears (the control ears of the bilateral mycotic otitis media, which was not treated by surgery). All of the patients were followed up for 3 to 36 months, otorrhea occurred in the patients who refused to oral antifungal medication for 3 weeks after the myringoplasty, then dry again by local antifungal cream, but otorrhea recurred 3 times within 2 years. Thirty-five patients (38 ears) acquired dry ear after surgery and/or oral antifungal drugs, but 2 of the 38 ears recurred separately at the fourth and sixth month after their surgeries, then dry again by irrigation with hydrogen peroxide and by administrating local antifungal cream for 3 weeks.@*CONCLUSION@#Otologists should elevate suspicion of mycotic otitis media when they meet patients with continuous otorrhea and patients who did not respond to the antibacterial treatment. The diagnosis based on microbiological findings, such as direct microscopy or fungal cultures should be done as soon as possible. If the otomycosis is decided, we suggest that topical treatment should be selected firstly, although most patients in present study were treated by surgery accompanied with oral antifungal medications. If there is obvious bone erosion, surgery is necessary to excise the pathological tissues, minificate the mastoid cavity and close the middle cavity in order to improve the hearing and prevent the infection from the outer ear.


Subject(s)
Adult , Aged , Chronic Disease , Female , Humans , Male , Middle Aged , Mycoses , Diagnosis , Therapeutics , Otitis Media , Diagnosis , Microbiology , Therapeutics , Retrospective Studies , Treatment Outcome , Young Adult
10.
Chinese Journal of Radiology ; (12): 181-184, 2009.
Article in Chinese | WPRIM | ID: wpr-394957

ABSTRACT

Objective To investigate the clinical manifestations, angiographic features and clinical significance of kinking of extracranial internal carotid artery (ICA). Methods The clinical and radiological data of 21 patients with kinking of extracranial ICA were retrospectively reviewed in our hospital from April 2003 to July 2007. Fisher exact test was performed. Results Of the 21 patients, 7 hod no clinical symptoms, the other 14 showed manifestations of cerebral iachemia with varying degree. One of the characteristic clinical manifestations that neck rotation or specific positions of head and neck might induce the occurrence of clinical symptoms was found in 5 cases. The whole-brain coverage DSA accurately showed the location of kinking of extracranial ICA and the degree of vascular stenosis. In patients with α < 66%, 80% > α≥ 66% and α≥ 80%, clinical symptoms were found in 3 out of 5,7 out of 10 and 4 out of 6 patients, respectively. Fisher exact test revealed that the positive rates of clinical symptoms in three groups had no significant difference (P > 0. 05). Conclusion Kinking of extracranial ICA is a frequent vascular morphologic variation, and it is also a kind of potential disease. The whole-brain coverage DSA is a relatively reliable method to detect this variation.

11.
Clinical Medicine of China ; (12): 1210-1213, 2008.
Article in Chinese | WPRIM | ID: wpr-397484

ABSTRACT

Objective To evaluate the short-term outcome of local intraarterial thrombolysis in patients with acute ischemic stroke of the anterior circulation. Methods 24 patients with acute ischemic stroke of the anterior cir-culation within 8 hours were treated by local intraarterial thrombolysis. Arterial recanalization was divided into total, partial and occlusive respectively according to angiography. Evaluation of clinical outcome was performed on the 30th day after thrombolysis,and was classified as good for Modified Rankin Scale (MRS) scores of 0 to Ⅲ and poor for MRS scores of Ⅳ to Ⅵ. Results Total recanalization was obtained in 54.2 % of patients, partial recanalization in 25.0%. Clinical outcome was good in 15 patients (62.5%). Cerebral hemorrhage occurred in 4 patients (16.7%). Four patients died (16.7%). Conclusion Local intraarterial thrombolysis is an effective method for treatment of a-cute iachemic stroke of the anterior circulation. It needs further practice and long-term follow-up study on safety and long-term efficacy.

SELECTION OF CITATIONS
SEARCH DETAIL