1.Sonographic features of carotid body tumor
Chinese Archives of Otolaryngology-Head and Neck Surgery 2006;0(01):-
OBJECTIVE To describe the sonographic features of carotid body tumor(CBT), and determine the utility of ultrasonography as a diagnostic study in the preoperative patients. METHODS Sonograms of 60 patients with 65 CBT were reviewed with gray scale and duplex Doppler sonography. The evaluated features included the location, size, margins, shape, internal echogenicity, the relationship between the tumor and the carotid artery,and blood flow velocity. RESULTS All carotid body tumors were located at the carotid artery bifurcation. Well-defined, solid, weakly hypoechoic masses were noted on gray scale sonography in the carotid bifurcation. Color Doppler sonography showed hypervascularity in 61 masses. Pulsed Doppler analysis of blood flow within the tumor mass was possible in 61 CBT, and low-resistance waveforms were obtained from multiple sites within the mass in all cases. CONCLUSION The ultrasound characteristics of the CBT possess specificity to some extent. Duplex Doppler ultrasound can provide the relationship between the tumor and the carotid artery,and provide important information of intratumor blood flow,which has important value in the diagnosis of CBT.
2.Investigation on inflammation reaction and vein thrombosis on rabbit ear vein with different drugs
Qing DAI ; Lunlan LI ; Xuelan CHEN
Acta Universitatis Medicinalis Anhui 2016;51(6):910-912
To observe local inflammation reaction and vein thrombosis on rabbit ear vein with methotrexate , ceftri-axone sodium and normal saline .With the extension use of drugs , the numbers of inflammation reaction and throm-bosis in each group were increased , and antibiotic and chemotherapy drug group had a higher rate than the normal saline group .There was a statistically significant difference of the inflammation reaction between the three test groups on the 3rd and 7th day (P<0.05), and a statistically significant difference of thrombosis between the three test groups on the 7 th day ( P<0.05 ) .The physical-chemical properties of drugs and use of time were factors in-fluencing inflammation reaction and thrombosis .
3.Clinical characteristics and ultrasonographic features of local chest wall tumor recurrence after mastectomy for breast cancer
Qian, YANG ; Qing-li, ZHU ; Yu-xin, JIANG ; Qing, DAI
Chinese Journal of Medical Ultrasound (Electronic Edition) 2013;(8):656-661
Objective To observe the ultrasonographic features of local chest wall tumor recurrence after mastectomy for breast cancer and its clinical and histopathological characteristics. Methods The ultrasonographic features, clinical and histopathological characteristics of 27 patients with local chest wall tumor recurrence after mastectomy confirmed histopathologically were retrospectively reviewed. Results The disease-free intervals of twenty-seven patients ranged from 3 to 129 months [mean (31.9±31.4) months]. Most of the recurrence(18/27, 66.7%) occurred within 3 years after mastectomy. The clinical manifestations were:7 cases (7/27, 25.9%) with regional skin redness and swelling, red rash or ulceration on chest wall associated with or without palpable mass, 20 cases(20/27, 74.1%) with chest wall palpable masses without obvious skin change. On ultrasonography, 2 cases showed diffuse inifltrative type with ill-deifned inhomogeneous hypoechoic lesion and skin thickening. And twenty-ifve cases(43 lesions) showed mass type with a lesion size range of 5.4-114.7 mm [mean (24.4±21.6) mm]. Among them, 32 lesions were located near to the operation incision scar, 36 involved muscle layer, 38 were hypoechoic, 31 had irregular shape, 24 had indistinct margin, and 31 had blood lfow signal. In addition, calciifcation, halo, and taller-than-wide shape were absent in all 43 lesions. Conclusions The tumor recurrence often occurred within 3 years after mastectomy in high-risk patients. Ultrasonographic feature of chest wall recurrent lesion is of great value in the diagnosis.
4.Construction of the lentivirus vector containing the miR-424 gene and its influence on proliferation of cervical cancer cell line
Qing LI ; Yuxin YANG ; Nan DAI ; Xiaoyan DAI ; Tao REN ; Dong WANG ; Yi QING
Chongqing Medicine 2014;(31):4165-4168
Objective To construct the lentivirus vector containing the hsa‐miR‐424 gene ,and identify the expression level of miR‐424 in cells .Research the influence of hsa‐miR‐424 on proliferation of cervical cancer Hela cell line .Methods Using the human genomic DNA as template to design the upper and lower primers for synthesis of miR‐424 ,and amplifying the target fragment by polymerase chain reaction (PCR) .Recover the products and conduct sequencing after connecting it into the pMD18T vector .Ampli‐fy the product by PCR template as pMD18T‐miR424 ,and insert the fragment expressing pMD18T‐miR424 into the vector of pLen‐tis‐CMV‐GFP‐MCS‐PGK‐PURO after enzyme cutting to construct the pLentis‐CMV‐GFP‐miR424‐PGK‐PURO .Package the com‐pound with pMD2 .G and pSPAX2 in 293T cell to produce the lentivirus ,and using the supernatant containing lentivirus to infect the Hela cell line .Results The sequencing result proved the sequence of miR‐424 in plasmid vector was correct ,which proved the construction of lentivirus was successful and the target lentivirus was obtained .The expression of miR‐424 almost rise 60 times af‐ter infected the cervical cancer Hela cell by the carrier .The result of M TT method suggested :the cervical cancer Hela cell lines have slowed proliferation with infection miR‐424 lentivirus .Conclusion The miR‐424 lentivirus vector was constructed successfully and the high efficacy expression miR‐424 cell line was established and stable .The cervical cancer Hela cell were infected with the super‐natant containing lentivirus ,inhibited the proliferation of Hela cell successfully ,and laid a good foundation for subsequent research .
5.Myelopathy associated with systemic lupus erythematosus: a clinical analysis of 10 cases and review of literature
Yijun DAI ; Qing LIU ; Jing HE ; Zhanguo LI
Chinese Journal of Internal Medicine 2013;(3):213-217
Objective To analyze the clinical features,therapy and outcome of systemic lupus erythematosus (SLE) combined with lupus myelopathy (LM).Methods Ten SLE patients combined with LM treated in Department of Rheumatology and Immunology,People' s Hospital from 1990 to 2011 were retrospectively analyzed and 43 cases of SLE combined with LM reported home and abroad were reviewed.Results All the ten patients were women with age of 23-53 (36.9 ± 3.4) years old and duration of 1-18 years.MRI of spinal cord revealed long T2 signal in one case,and normal in two cases.Seven patients received methylprednisolone pulse plus cyclophosphamide (CTX),two were given glucocorticoid pulse only,and one was given moderate dosage of glucocorticoid,CTX and plasma exchange (PE).The results revealed that four patients received complete recovery,four received partial recovery,and two received no improvement.Conclusions LM is a rare but severe complication of SLE with poor prognosis,which usually occurs in early phase of young SLE patients.Pulse methylprednisolone and CTX may be effective.Early and active treatment may improve the outcome.
6.Sonographic features analysis of abdominal wall endometriosis
Shanshan YOU ; Li TAN ; Zhenzhen LIU ; Qing DAI
Chinese Journal of Ultrasonography 2013;(4):333-336
Objective To describe the sonographic features of abdominal wall endometriosis(AWE).Methods 105 consecutive women with proven pathological endometriosis of the abdominal wall were retrospectively recruited.The clinical data and the result of the sonographic examinations were reviewed and described.The AWE lesions were divided into <3 cm and ≥3 cm groups according to their maximum diameter.Results The sonographic feature of AWE includes irregular hypoechoic nodules with ill-defined margins,anechoic and hyperechoic ring maybe exist.In color Doppler,most of them showed few internal vascularity.Compared with≥3 cm group,<3 cm group nodules manifested as shorter latent period,with more superficial location,round or oval shape,peripheral hyperechoic ring and none or few vascularity were more common.As for ≥3 cm group nodules manifested as longer latent period,with deeper location,irregular shape,abundant of vascularity were more common.Conclusions Specific diagnosis of AWE can be made by using high frequency sonography combined with clinical features.More accurate information can be provided by judging the size,range and infiltrative depth.
7.Expression of C-reactive protein in visceral adipose tissue of rat with high fat diet
Lingli DAI ; Xiaoyong LI ; Ning LIN ; Yan DONG ; Qing SU
Chinese Journal of Endocrinology and Metabolism 2009;25(3):323-325
The abdominal visceral fat content in obese SD rats induced by high fat diet for 10 weeks was significantly higher than that in control group [(26±6 vs 13±3)g,P<0.01] ,along with increased CRP mRNA expression in abdominal visceral fat (0.901±0.085 vs O. 402±0.036, P<0.01). As compared with normal control group, in the high fat group the concentrations of CRP in portal vein [(743.8±95.8 vs 558.3 ±118.3) mg/L, P<0.01] and peripheral vein[(596.3±38.9 vs 485.8±30.2) mg/L,P<0. 05] were higher. The concentration of CRP in portal vein was significantly higher than that in peripheral vein in high fat diet group(P<0.01) ,but this was not evident in control group. These results suggest that the increased CRP expression in visceral adipose tissue may partially account for the elevation of serum CRP in obesity.
8.Nursing care of a patient with pancreatic cancer-related depression and postoperative delayed gastric emptying
Mingyan SHEN ; Qing LI ; Yanping ZHENG ; Weiling DAI
Chinese Journal of Nursing 2017;52(1):13-16
This paper summarized the experience of caring a patient with pancreatic cancer-related depression treated with pancreaticoduodenectomy and postoperative delayed gastric emptying.The nursing included several key points.On the base of collaboration of muhi-disciplinary teams,to strengthen supportive psychological intervention and safety management after admission;to use multimodal analgesia combined with cognitive behavioral therapy to reduce postoperative pain.After the patient was complicated with gastric emptying obstacles,solution-focus mode,sham feeding and nutritional support programs were implemented.Long-term follow-up with physician-nurse collaboration mode was implemented to enhance quality of life of the patient.
9.Role of danshensu on TGF-? signal transduction in rat's hepatic stellate cells
Qing DAI ; Xin LI ; Lei ZHENG ; Zhi DONG
Chinese Journal of Pathophysiology 2000;0(10):-
AIM:To investigate the role of danshensu on Smad signal transduction in rat hepatic stellate cells(HSCs)stimulated with transforming growth factor(TGF-?1).METHODS:The rat HSCs was isolated with collagenase by in situ-liver recirculation perfusion and cultured in vitro.MTT colorimetric assay was used to detect proliferation of HSCs treated with different concentration of danshensu.The expressions of ?-SMA and T?R I and II were observed by immunocytochemitry,indirect immunofluorescent staining and Western blotting when HSCs stimulated with TGF-?1 and with different concentrations of danshensu for 24 h.RESULTS:(1)Danshensu at the concentration from 0.0625 mmol/L to 1 mmol/L prevented the proliferation of HSCs in a dose-dependent manner(P