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1.
Chinese Acupuncture & Moxibustion ; (12): 447-453, 2023.
Article in Chinese | WPRIM | ID: wpr-980743

ABSTRACT

OBJECTIVE@#To observe the effect of needle-knife on the chondrocyte apoptosis of knee joint in rabbits with knee osteoarthritis (KOA) based on the CircSERPINE2-miR-1271-5P-E26 specific transformation-related gene (ERG) axis, and to explore the mechanism of needle-knife for KOA.@*METHODS@#Thirty-six New Zealand white rabbits were randomly divided into a normal group, a model group, a needle-knife group and a sham needle-knife group, 9 rabbits in each group. The rabbits in the model group, the needle-knife group and the sham needle-knife group were treated with modified Videman method to prepare KOA model. After successful modeling, the rabbits in the needle-knife group were treated with needle-knife at cord adhesion and nodules near quadriceps femoris tendon and internal and external collateral ligament on the affected knee joint; the rabbits in the sham needle-knife group were treated with sham needle-knife baside the needle insertion point of the needle-knife group (needle-knife was only inserted, without any operation). The treatment was given once a week, 3 times in total. The Lequesne MG behavioral score was used to evaluate the knee joint damage in each group before and after intervention. After intervention, HE staining and transmission electron microscopy were used to observe the cartilage tissue morphology and ultrastructure of chondrocytes in the knee joint in each group; TUNEL method was used to detect the level of chondrocyte apoptosis in the knee joint; real-time fluorescence quantitative PCR was used to detect the expression of CircSERPINE2, miR-1271-5P and ERG mRNA in knee cartilage tissue in each group.@*RESULTS@#After intervention, compared with the normal group, the Lequesne MG behavioral score in the model group was increased (P<0.01). Compared with the model group and the sham needle-knife group, the Lequesne MG behavioral score in the needle-knife group was decreased (P<0.01). In the model group and the sham needle-knife group, the number of chondrocytes and organelles was decreased, the cell nucleus was shrunk, mitochondria was swelling or disappeared; in the needle-knife group, the number of chondrocytes and organelles was increased, the cell nucleus was not obviously shrunk and the mitochondria was not obviously swelling. Compared with the normal group, the level of chondrocyte apoptosis in the model group was increased (P<0.01); compared with the model group and the sham needle-knife group, the level of chondrocyte apoptosis in the needle-knife group was decreased (P<0.01, P<0.05). Compared with the normal group, the expression of CircSERPINE2 and ERG mRNA in the model group was decreased (P<0.01), and the expression of miR-1271-5P mRNA was increased (P<0.01); compared with the model group and the sham needle-knife group, the expression of CircSERPINE2 and ERG mRNA in the needle-knife group was increased (P<0.01), and the expression of miR-1271-5P mRNA was decreased (P<0.01).@*CONCLUSION@#Needle-knife could reduce the knee joint damage and chondrocyte apoptosis in KOA rabbits, which may be related to up-regulating the expression of CircSERPINE2 and ERG mRNA, and inhibiting the expression of miR-1271-5P mRNA.


Subject(s)
Rabbits , Animals , Osteoarthritis, Knee/metabolism , Chondrocytes/metabolism , Knee Joint/surgery , Apoptosis , MicroRNAs/genetics
2.
Chinese Journal of Radiation Oncology ; (6): 791-797, 2022.
Article in Chinese | WPRIM | ID: wpr-956913

ABSTRACT

Objective:To evaluate the efficacy of concurrent radiotherapy combined with S-1 (CCRT) versus radiotherapy (RT) alone in elderly patients with esophageal cancer by Meta-analysis.Methods:The Cochrane Library, PubMed, Web of science, EMbase, CBM, CNKI, VIP and Wanfang database were searched. The eligible studies were subject to evaluation of methodological quality. The Meta-analysis was performed by the Revman 5.3 software.Results:A total of 1693 patients were enrolled in 23 studies. The results showed that CCRT increased the incidence of CR [ OR=2.08,95% CI (1.66-2.61), P<0.001] and PR [ OR=1.31,95% CI (1.08-1.60), P=0.007] and total response rate [ OR=2.99,95% CI (2.37-3.77), P<0.001]. Furthermore, CCRT improved the 1-year survival rate [ OR=2.56, 95% CI (1.94-3.38), P<0.001] and 2-year survival rate [ OR=2.33, 95% CI (1.77-3.08), P<0.001]. Meanwhile, CCRT reduced the incidence of leucopenia, thrombocytopenia, radioactive esophagitis, nausea and vomiting (all P<0.05), but there was no significant difference in the incidence of anemia and radiation pneumonia between two groups (both P>0.05). Conclusions:Available evidence suggests that CCRT combined with S-1 can improve therapeutic efficacy and prolong survival time in elderly patients with esophageal cancer, but CCRT may increase the incidence of treatment-related side effects. Due to the limitations of the number and quality of the included studies, the above conclusions need to be verified by more high-quality studies.

3.
Chinese Journal of Ultrasonography ; (12): 889-892, 2022.
Article in Chinese | WPRIM | ID: wpr-956668

ABSTRACT

Objective:To investigate the safety and efficacy of ultrasound-guided transversus abdominis plane (TAP) combined with paracervical block in percutaneous microwave ablation(PMWA) of uterine fibroids.Methods:Twenty-four patients with uterine fibroids who underwent PMWA after ultrasound-guided TAP combined with paracervical block in Sichuan Cancer Hospital from October 2021 to January 2022 were retrospectively analyzed. The success rate and adverse reactions of TAP combined with paracervical block were recorded, and the types and doses of rescue analgesics used during and after operation were recorded. The pain degree of patients was recorded by NRS(numeric rating scales) during and 30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, 12 hours and 24 hours after operation, and the satisfaction of patients was recorded.Results:The success rate of TAP combined with paracervical block was 100%, and there were no adverse reactions during and after operation. During the operation, 5 patients(20.83%) had mild pain, which was tolerable and did not need intervention, 4 patients(16.67%) presented with moderate pain, and the NRS scores were 4, 4, 5 and 6 respectively, the symptoms were relieved after rescue analgesia. All patients completed one ablation, no ablation failure or secondary ablation. Some patients had mild pain after operation, which could be tolerated without intervention, and all were relieved naturally within 6 hours. All patients returned home on the day of ablation and were 100% satisfied with the analgesic effect.Conclusions:Ultrasound-guided TAP combined with paracervical block in PMWA of uterine fibroids is safe and effective, which is worthy of clinical promotion.

4.
Chinese Journal of Cardiology ; (12): 1169-1176, 2022.
Article in Chinese | WPRIM | ID: wpr-969723

ABSTRACT

Objective: To estimate the prevalence, awareness, treatment and control rate of hypertension among young and middle-aged population in China. Methods: The analysis was based on the results of 2012-2015 China Hypertension Survey, which was a cross-sectional stratified multistage random sampling survey. A total of 229 593 subjects were included in the final analysis. The data including sex, age, living in urban and rural areas, prevalence of hypertension, history of stroke, family history of coronary heart disease and drinking, physical examination, heart rate were collected. Hypertension was defined as mean systolic blood pressure (SBP) ≥140 mmHg (1 mmHg=0.133 kPa), and (or) diastolic blood pressure (DBP) ≥90 mmHg, and (or) self-report a history of hypertension, and (or) use of antihypertensive medicine within 2 weeks before survey. Prehypertension was defined as SBP between 120-139 mmHg, and (or) DBP between 80-89 mmHg. Control of hypertension was considered for hypertensive individuals with SBP<140 mmHg and DBP<90 mmHg. The prevalence of prehypertension, hypertension, awareness, treatment, control rate were calculated, and the control rate among those with antihypertensive medication was also calculated. Results: The prevalence of prehypertension and hypertension was 43.8% (95%CI: 42.3%-45.4%), and 22.1% (95%CI: 20.8%-23.3%), respectively. The prevalence of prehypertension and hypertension was significantly higher among male than female across different age groups. The awareness, treatment, control rate of hypertension and control rate among treated hypertensive participants were 43.8%, 33.2%, 16.7%, and 40.2%, respectively. The prevalence was higher, and the control rate was lower among individuals with higher heart rate. Conclusion: The prevalence of prehypertension and hypertension among young and middle-aged population is high, the awareness, treatment and control rate need to be further improved in this population. The prevention and treatment of hypertension should be strengthened in the future to improve the control rate of hypertension in China.


Subject(s)
Middle Aged , Male , Female , Humans , Antihypertensive Agents/therapeutic use , Prehypertension/epidemiology , Prevalence , Cross-Sectional Studies , Hypertension/drug therapy , Blood Pressure , China/epidemiology
5.
Chinese Acupuncture & Moxibustion ; (12): 59-65, 2022.
Article in Chinese | WPRIM | ID: wpr-927335

ABSTRACT

OBJECTIVE@#To observe the effect of needle knife on chondrocyte autophagy and expressions of autophagy-related protein and mammalian target of rapamycin (mTOR) in rats with knee osteoarthritis (KOA), and to explore the possible mechanism of needle knife for KOA.@*METHODS@#A total of 42 SD rats were randomly divided into a normal group, a model group and a needle knife group, 14 rats in each group. Except for the normal group, the other two groups were injected with the mixture of papain and L-cysteine into the left hind knee joint to establish the KOA model. After modeling, the rats in the needle knife group were treated with needle knife at strip or nodule around the quadriceps femoris and medial and lateral collateral ligament on the affected side, once a week for 3 times (3 weeks). The changes of left knee circumference in each group were observed; the chondrocytes and ultrastructure of left knee joint were observed by HE staining and electron microscope; the mRNA and protein expressions of autophagy-related genes (Atg5, Atg12, Atg4a), Unc-51 like autophagy activated kinase 1 (ULK1), autophagy gene Beclin-1 and mTOR in left knee cartilage were detected by real-time fluorescence quantitative PCR and Western blot.@*RESULTS@#After modeling, the left knee circumferences in the model group and the needle knife group were increased compared with those before modeling and in the normal group (P<0.05); after intervention, the left knee circumference in the needle knife group was smaller than that in the model group and after modeling (P<0.05). Compared with the normal group, the number of chondrocytes was decreased, and a few cells swelled, nuclei shrank, mitochondria swelled and autophagosomes decreased in the model group; compared with the model group, the number of chondrocytes was increased , and most cell structures returned to normal, and autophagosomes was increased. Compared with the normal group, the mRNA and protein expressions of Atg5, Atg12, Atg4a, Beclin-1 and ULK1 in the knee cartilage in the model group were decreased (P<0.05); compared with the model group, the expressions of the above indexes in the needle knife group were increased (P<0.05). Compared with the normal group, the mRNA and protein expressions of mTOR in the knee cartilage in the model group were increased (P<0.05); compared with the model group, the expressions of the above indexes in the needle knife group were decreased (P<0.05).@*CONCLUSION@#The needle knife intervention could improve knee cartilage injury in rats with KOA, and its mechanism may be related to reducing the expression of mTOR and up-regulating the expressions of Atg5, Atg12, Atg4a, ULK1 and Beclin-1, so as to promote chondrocyte autophagy and delay the aging and degeneration of chondrocytes.


Subject(s)
Animals , Rats , Autophagy , Autophagy-Related Protein-1 Homolog/genetics , Beclin-1/genetics , Chondrocytes , Osteoarthritis, Knee/therapy , Rats, Sprague-Dawley , TOR Serine-Threonine Kinases/genetics
6.
Chinese Journal of Radiation Oncology ; (6): 120-124, 2022.
Article in Chinese | WPRIM | ID: wpr-932639

ABSTRACT

Objective:To systematically compare the efficacy and safety of chrono-chemotherapy combined with radiotherapy in patients with locally advanced nasopharyngeal carcinoma.Methods:Seven databases were searched, including the Cochrane Library (Issue 5, 2021), PubMed, Embase, CBM, CNKI, VIP and Wanfang Database. The method ological quality of the eligible studies was evaluated. The Meta-analysis was performed by the Revman 5.3 software.Results:Sixteen studies consisting of 1275 patients were finally included. Among them, 642 patients were treated with chrono-chemotherapy combined with radiotherapy and 633 patients received conventional chemotherapy combined with radiotherapy. Results showed that compared with conventional chemotherapy group, the effective rate was significantly elevated ( OR=1.66, 95% CI: 1.17-2.34, P=0.004), the incidence of leucopenia, thrombocytopenia, gastrointestinal reaction, grade 3-4 oral mucosal reaction and grade 3-4 radiothermitis was significantly reduced (all P<0.001), and the quantity of CD3, CD4 and CD4/CD8 was significantly increased in the chrono-chemotherapy group. Conclusion:Current evidence shows that compared with conventional chemotherapy, chrono-chemotherapy combined with radiotherapy could improve the effective rate, reduce adverse reactions and mitigate the destruction of immune function simultaneously.

7.
Journal of Pharmaceutical Practice ; (6): 245-248, 2021.
Article in Chinese | WPRIM | ID: wpr-876857

ABSTRACT

Objective To study the effect of SLCO1B1 521 T>C and APOE gene polymorphisms on the clinical efficacy and safety of atorvastatin in ischemic stroke patients with dyslipidemia. Methods 210 cases of ischemic stroke with dyslipidemia were enrolled from April 2018 to December 2018 to determine SLCO1B1 521 T>C and APOE gene polymorphisms. Patients received atorvastatin 20 mg/d orally. TC, TG, HDL-C, LDL-C levels were measured to evaluate the efficacy 3 months pre-and post- treatment. TBil, ALT, AST, CK levels were assayed with following up adverse reactions to evaluate safety. Results SLCO1B1 521 T>C genotype distribution was TT79.05%, TC19.05%, CC1.90%. E2, E3, E4 allele frequencies of APOE genes were 14.28%, 67.62%, 18.10%. Each genotype conforms to the law of Hardy-Weinberg balance. After three months of medication, there were significant differences in TC, TG, LDL-C, HDL-C changes in patients with different APOE genotypes. No obvious abnormality was found in safety index. The incidence of myalgia in SLCO1B1521 T>C mutant group was significantly higher than that in the wild group (P<0.01). Conclusion Lipid regulation of atorvastatin was affected by APOE gene polymorphism. SLCO1B1521 T>C may be associated with myalgia, the adverse reaction of atorvastatin. The detection of SLCO1B1 and APOE genotyping is helpful for individualized treatment of blood lipids and provides basis for rational use of statins in patients for drug therapy management.

8.
Chinese Journal of Disease Control & Prevention ; (12): 328-331, 2019.
Article in Chinese | WPRIM | ID: wpr-777969

ABSTRACT

@# Objective This research aimed to explore the mental status of public hospital medical personnel and social support for them, social support they perceive, and their coping styles. This study was designed to investigate on the relationship between their anxiety and social support, perceived social support and their coping styles. Methods A questionnaire was adopted to collect data, including participants’ background, measurement of anxiety, as well as social support, perceived social support and their coping styles. Results(1)The anxiety level of medical personnel was significantly higher than that of domestic norm 37.23±12.59(t=14.370, P<0.001);(2)Anxiety levels appeared to be significantly different in occupation, educational background and working years;(3)Results shown in the three scales were different among participants with different levels of anxiety in perspectives of every dimension in the scales; (4) With the help of Spearman correlation analysis, it showed that anxiety levels of medical personnel was negatively correlated with objective support (r=-0.098, P=0.051), subjective support (r=-0.189, P<0.001) ,utilization of social support (r=-0.164, P=0.001), friend support (r=-0.356, P<0.001),family support (r=-0.330, P<0.001),other support (r=-0.238, P<0.001) and positive response (r=-0.282, P<0.001), and positively correlated with negative response (r=0.385, P<0.001). Conclusions Mental health of medical personnel should be noticed and enhanced, and social support for public hospital medical personnel should be strengthened. Thus, the performance of the medical team can be developed in order to support further public medical service construction.

9.
Chinese Journal of Geriatrics ; (12): 1242-1246, 2019.
Article in Chinese | WPRIM | ID: wpr-801255

ABSTRACT

Objective@#To investigate the relationship between hemoglobin levels and prognosis of cerebral infarction in elderly patients aged 75 years and over.@*Methods@#A retrospective analysis of 238 elderly patients (≥75 years old) with cerebral infarction admitted into our hospital from January 2016 to June 2018 was performed. The age, gender, serum creatinine and risk factors for stroke (hypertension, diabetes, dyslipidemia, homocysteine, atrial fibrillation, smoking, drinking), coronary heart disease, previous stroke history, tumor history, National Institutes of Health Stroke Scale (NIHSS) score, hemoglobin, hematocrit and other basic data were recorded. The patients were divided into the group with good prognosis (mRS score ≤ 2) and the group with poor prognosis (mRS score > 2). The relationship between hemoglobin levels and the prognosis of cerebral infarction in elderly patients were analyzed.@*Results@#After 6 months of follow-up, 124 (52.1%, 124/238) stroke patients had a good prognosis, and 114 (47.9%, 114/238) patients had a poor prognosis, including 21 deaths. Anemia at admission (OR=2.433, 95%CI: 1.213-4.591, P=0.011), new-onset anemia after hospitalization (OR=2.615, 95%CI: 1.333-6.521, P=0.043) and the low level of minimum hemoglobin during hospitalization (OR=0.847, 95%CI: 0.671-0.971, P=0.038) were independent risk factors for poor prognosis in elderly stroke patients aged ≥75 years. New-onset anemia after hospitalization (OR=1.015, 95%CI: 1.002-1.027, P=0.022), the low level of minimum hemoglobin during hospitalization (OR=0.801, 95%CI: 0.654-0.981, P=0.027), the decrement of hemoglobin ≥20 g/L (OR=1.342, 95%CI: 1.011-1.763, P=0.000) at reexamination were independent risk factors for the mortality in elderly patients with cerebral infarction.@*Conclusions@#Anemia at admission, new-onset anemia after hospitalization, and the low level of minimum hemoglobin during hospitalization are independent predictors for poor prognosis in cerebral infarction patients aged ≥75 years. The decrement of hemoglobin ≥20 g/L after admission is an independent predictor for high mortality in elderly patients with cerebral infarction.

10.
Chinese Journal of Geriatrics ; (12): 1242-1246, 2019.
Article in Chinese | WPRIM | ID: wpr-824543

ABSTRACT

Objective To investigate the relationship between hemoglobin levels and prognosis of cerebral infarction in elderly patients aged 75 years and over.Methods A retrospective analysis of 238 elderly patients (≥75 years old) with cerebral infarction admitted into our hospital from January 2016 to June 2018 was performed.The age,gender,serum creatinine and risk factors for stroke (hypertension,diabetes,dyslipidemia,homocysteine,atrial fibrillation,smoking,drinking),coronary heart disease,previous stroke history,tumor history,National Institutes of Health Stroke Scale (NIHSS) score,hemoglobin,hematocrit and other basic data were recorded.The patients were divided into the group with good prognosis (mRS score ≤ 2) and the group with poor prognosis (mRS score > 2).The relationship between hemoglobin levels and the prognosis of cerebral infarction in elderly patients were analyzed.Results After 6 months of follow-up,124 (52.1%,124/238) stroke patients had a good prognosis,and 114 (47.9%,114/238) patients had a poor prognosis,including 21 deaths.Anemia at admission (OR =2.433,95%CI:1.213-4.591,P=0.011),new-onset anemia after hospitalization (OR =2.615,95%CI:1.333-6.521,P =0.043) and the low level of minimum hemoglobin during hospitalization (OR =0.847,95 % CI:0.671-0.971,P =0.038) were independent risk factors for poor prognosis in elderly stroke patients aged ≥75 years.New-onset anemia after hospitalization (OR =1.015,95% CI:1.002-1.027,P--0.022),the low level of minimum hemoglobin during hospitalization (OR =0.801,95%CI:0.654-0.981,P=0.027),the decrement of hemoglobin ≥ 20 g/L (OR =1.342,95% CI:1.011-1.763,P =0.000) at reexamination were independent risk factors for the mortality in elderly patients with cerebral infarction.Conclusions Anemia at admission,new-onset anemia after hospitalization,and the low level of minimum hemoglobin during hospitalization are independent predictors for poor prognosis in cerebral infarction patients aged ≥75 years.The decrement of hemoglobin ≥20 g/L after admission is an independent predictor for high mortality in elderly patients with cerebral infarction.

11.
Chinese Journal of Ultrasonography ; (12): 893-896, 2019.
Article in Chinese | WPRIM | ID: wpr-797007

ABSTRACT

Objective@#To determine the value of transoral ultrasound (US) guided biopsy for oral tumors.@*Methods@#A consecutive series of 36 patients who underwent transoral US-guided biopsy of oral tumors were evaluated retrospectively. By testing against histopathological results after surgery, the diagnostic sensitivity, specificity, positive predictive value, negative predictive value and accuracy of transoral US-guided biopsy for oral tumors were calculated. ROC curves were plotted and the area under the curve were evaluated.@*Results@#All 36 lesions were successfully performed transoral US-guided biopsy. The diagnostic sensitivity, specificity, positive predictive value, negative predictive value and accuracy of this technique for the diagnosis of oral lesions were 87.0%, 100%, 100%, 81.3% and 91.7% respectively. In ROC curve analysis, the area under the curve was 0.935. No serious complications were observed.@*Conclusions@#Transoral US-guided biopsy can be considered as a safe and effective technology for early diagnosis and clinical treatment of oral tumors.

12.
Chinese Journal of Ultrasonography ; (12): 893-896, 2019.
Article in Chinese | WPRIM | ID: wpr-791317

ABSTRACT

Objective To determine the value of transoral ultrasound ( US ) guided biopsy for oral tumors . Methods A consecutive series of 36 patients w ho underwent transoral US‐guided biopsy of oral tumors were evaluated retrospectively . By testing against histopathological results after surgery , the diagnostic sensitivity ,specificity ,positive predictive value ,negative predictive value and accuracy of transoral US‐guided biopsy for oral tumors were calculated . ROC curves were plotted and the area under the curve were evaluated . Results All 36 lesions were successfully performed transoral US‐guided biopsy . T he diagnostic sensitivity ,specificity ,positive predictive value ,negative predictive value and accuracy of this technique for the diagnosis of oral lesions were 87 .0% ,100% ,100% ,81 .3% and 91 .7% respectively . In ROC curve analysis , the area under the curve was 0 .935 . No serious complications were observed . Conclusions Transoral US‐guided biopsy can be considered as a safe and effective technology for early diagnosis and clinical treatment of oral tumors .

13.
Chinese Circulation Journal ; (12): 446-451, 2018.
Article in Chinese | WPRIM | ID: wpr-703878

ABSTRACT

Objectives: To investigate the prevalence of ideal cardiovascular health behaviors and factors, and its association with socioeconomic status (SES) in enterprise employees. Methods: The cluster sampling method was adopted to recruit 27 607 employees aged 18 to 60 years from 45 enterprises across China. The ideal cardiovascular health metrics including behaviors and factors, which were defined according to the AHA criteria, were obtained, and SES was measured by education and occupational class. Multilevel logistic regression models were used to analyze the association between SES and ideal cardiovascular health metrics. Results: Overall, the prevalence of ideal cardiovascular health behavior (smoking, body mass index, salt intake, physical activity) was 51.3%, 67.9%, 14.0%, 31.2%, respectively; prevalence of the ideal cardiovascular factors (fasting blood glucose, total cholesterol, blood pressure) was 72.9%, 81.6%, 27.3%,respectively in this cohort. Among the employees, only 0.6% population met all 7 cardiovascular health metrics. After adjusting the individual and workplace factors, employees with high school (OR=1.18, 95%CI: 1.08-1.29) and college or above education (OR=1.52, 95%CI: 1.37-1.69) were more likely to have ideal cardiovascular health status compared with those with less education; white-collar workers were more likely to have ideal cardiovascular health status compared with blue-collar workers (OR=1.18; 95%CI: 1.08-1.29). Conclusions: The prevalence of ideal cardiovascular health behaviors and factors is low, and is positively associated with SES, suggesting the importance of promoting the cardiovascular health behavior, monitoring/controlling the related cardiovascular factors and reducing the socioeconomic inequalities among Chinese enterprise employees.

14.
Chinese Journal of Ultrasonography ; (12): 905-910, 2018.
Article in Chinese | WPRIM | ID: wpr-707745

ABSTRACT

Objective To detect the efficiency of the newly developed PLGA/IO MPs in tracking tendon stem cells (TSCs) by magnetic resonance (MR) and photoacoustic (PA) imaging . Methods Both PLAG/IO MPs and TSCs were prepared and acquired according to the previous study ,and TSCs were incubated with PLGA/IO MPs for labeling .TSCs were collected for MR and PA imaging ,prussian blue staining was performed ,and the iron concentration of labeled TSCs was determined using inductively coupled plasma optical emission spectrometry ( ICP-OES ) at 3 ,7 ,14 ,21 and 28 days after labeling respectively . The rotator cuff injury model was built on the right side of SD rats by surgery and the labeled TSCs were implanted instantly . Dual-modal MR/PA imaging was performed to observe the implanted labeled TSCs at day 3 ,7 ,14 ,21 and 28 after implantation respectively . Results Along with the increase of labeling time ,both MR and PA signal of labeled TSCs decreased gradually ,and the amount of intracellular Fe loading was gradually decreased . At day 28 ,the difference of Fe concentration per cell between labeled TSCs and non-labeled TSCs was not significant (1 .45 pg Fe/cell vs 1 .17 pg Fe/cell , P >0 .05) . MR and PA imaging allowed a long-term tracking of labeled TSCs for 21 and 7 days respectively in the rat rotator cuff injury model . Conclusions PLGA/IO MPs are able to label TSCs for up to 21 days ,and dual-modal MR/PA imaging could be used to track the labeled TSCs in the rat rotator cuff injury model .

15.
Chinese Journal of Ultrasonography ; (12): 800-804, 2018.
Article in Chinese | WPRIM | ID: wpr-707726

ABSTRACT

Objective To investigate the learning curve of contrast-enhanced ultrasonography ( CEUS) in sentinel lymph node( SLN ) of breast cancer and provide a theoretical basis for leaners to learn SLN CEUS . Methods The multi-center study of SLN CEUS in breast cancer" was planned by Sichuan Cancer Hospital . According to the uniform inclusion and exclusion criteria , 511 patients with complete clinical data and follow-up results from 9 hospitals in Multi-center were included in this study . According to the inspection time ,the patients were divided into 3 groups named as group A ( 170 patients) ,group B ( 170 patients) and group C ( 171 patients ) ,respectively . The basic clinical data ,ultrasound imaging data , intraoperative and postoperative pathological findings of all patients were recorded . With the accumulation of cases examined ,analysis was performed to find the learning curve of the SLN CEUS examination time , SLN CEUS detection rate ,SLN CEUS surface marking accuracy rate and SLN CEUS diagnosis rate ,the learning curve was analyzed . Results ① There was no statistical significant difference in patients ages , tumors sizes ,tumors locations ,SLNs numbers and LCs numbers among the three groups( all P > 0 .05) . ②As the number of cases examined increases ,the examination time was reduced gradually ,but SLN detection rate ,surface marking accuracy and SLN diagnostic coincidence rate were increased gradually( F = 151 .75 , 1 .96 ,7 .49 ,5 .50 ; P = 0 .000 ,0 .143 ,0 .001 ,0 .005 ) . Conclusions The skill of the doctor is improved gradually when learning SLN CEUS . With the number of the cases increase ,the operating time of SLN CEUS is shorted ,and the SLN detection rate ,surface marking accuracy and SLN diagnostic coincidence rate of SLN-CEUS are gradually increased . It has an important clinical significance for beginners to learn the SLN CEUS technology .

16.
Chinese Journal of Ultrasonography ; (12): 259-264, 2018.
Article in Chinese | WPRIM | ID: wpr-707665

ABSTRACT

Objective To prepare PLGA microparticles loaded with Iron oxide (PLGA/IO MPs) and explore their feasibility of the rat tendon stem cells (TSCs) labeled with the particles and the multimodal imaging of Ultrasonic (US)/Photoacoustic (PA)/Magnetic resonance (MR) in vitro. Methods The PLGA/IO MPs were prepared using double emulsification,and physical and chemical properties were tested and US/PA/MRI imaging was performed.The TSCs were labeled with PLGA/IO MPs,and transmission electron microscopy (TEM) and prussian blue staining were performed to test labeling effects,then the US, PA and MRI imaging of labeled TSCs were performed. Results The diameter and Zeta potential of prepared PLGA/IO MPs were ( 801.5 ± 165.6) nm and (6.36 ± 3.36) mV [the Zeta potential of microparticles which including poly-L-Lysine(PLL) was about (3.16 ± 3.69)mV],respectively.PLGA/IO MPs could be imaged by US/PA/MRI multimodal imaging. After labeling,the PLGA/IO MPs were distributed in cytoplasm of labeled TSCs which could be imaged by US,PA,MRI simultaneously. Conclusions The TSCs can be labeled with PLGA/IO MPs effectively,and imaged by using multimodal US/PA/MRI imaging in vitro,which will lay foundation for noninvasive and multimodal tracking of transplanted TSCs in vivo.

17.
Chinese Journal of Ultrasonography ; (12): 895-898, 2017.
Article in Chinese | WPRIM | ID: wpr-663525

ABSTRACT

Objective To detect the effectiveness of ultrasound-guided glenohumeral joint injection combined with distension for treatment of frozen shoulder.Methods Fifty-two patients diagnosed as frozen shoulder by physical and ultrasound examination were performed the ultrasound-guided glenohumeral joint injection combined with distension.Finally,48 patients completed the continuously three times'treatment were included in this study.Patients were assessed using Visual Analogy Score(VAS),the influence of sleeping and the Active Range of Motion(AROM)at the beginning of each time's treatment and at 2 weeks after the third treatment in order to compare the effectiveness of each time's treatment.Results The pain and sleeping influence of the first treatment were significantly improved compared with before treatment(all P <0.05),but the AROM was not significantly improved(P >0.05).The pain,sleeping influence and AROM of the second treatment were significantly improved by comparing with the first treatment respectively(all P <0.05).The pain and AROM of the third treatment were further improved than the second treatment(all P <0.05).However there was no significant improvement of sleeping influence for the third treatment(P >0.05).Conclusions The pain,sleeping influence and AROM of frozen shoulder patients are significantly improved after the treatment of ultrasound-guided glenohumeral joint injection combined with distension for continuous three times,which is an effective treatment for frozen shoulder.

18.
Asian Pacific Journal of Tropical Medicine ; (12): 582-586, 2016.
Article in Chinese | WPRIM | ID: wpr-951390

ABSTRACT

Objective To explore the role of the abnormal expression of miRNAs in the development process of non-small cell lung cancer and the feasibility of ultrasound microbubble-mediated gene therapy after transfecting antisense miRNA-224 and miRNA-122a plasmids into non-small cell lung cancer A549 cells. Methods Antisense miRNA-224 and miRNA-122a plasmids were transfected into non-small cell lung cancer A549 cells on the optimal ultrasound microbubble-mediated condition. We set up a control group. The cell proliferation activity, apoptosis, invasion ability were detected by MTT assay, Annexin V-PE, Transwell invasion experiment and colony formation assay, respectively. Results The expression of miRNA-224 decreased and the expression of miRNA-122a rose after the plasmids of target genes were transfected into non-small cell lung cancer A549 cells, and there were significant differences when compared with those of the control group (P < 0.05). After the plasmids of target genes were transfected into A549 cells, the growth of antisense miRNA-224 and miRNA-122a were inhibited, and the differences were significant as compared with the control group (P < 0.05). Besides, the inhibition of miRNA-122a group was the most significant and there was statistically significant difference as compared with miRNA-224 group (t = −4.694, P = 0.009). After the plasmids of target genes were transfected into A549 cells, the proportion of apoptotic cells increased, the invasive cells were decreased and the clone ability reduced, and also there was a significant difference as compared with those of the control group (P < 0.05). What's more, the apoptotic peak appeared in miRNA-122a group. Its invasion ability decreased most obviously (40.25 ± 3.97/visual field), the number of clone ability was 104.93 ± 4.87 and the inhibitory effect was the most obviously. There was statistically significant difference as compared with other groups (P < 0.05). Conclusions A549 cells transfected by ultrasound microbubble-mediated antisense miRNA-224 and miRNA-122a plasmids possessed good transfection efficiency. The cell growth, invasion and colony-forming abilities of transfected A549 cells were suppressed, which laid a solid foundation for the gene therapy of non-small cell lung cancer.

19.
Asian Pacific Journal of Tropical Medicine ; (12): 582-586, 2016.
Article in English | WPRIM | ID: wpr-820222

ABSTRACT

OBJECTIVE@#To explore the role of the abnormal expression of miRNAs in the development process of non-small cell lung cancer and the feasibility of ultrasound microbubble-mediated gene therapy after transfecting antisense miRNA-224 and miRNA-122a plasmids into non-small cell lung cancer A549 cells.@*METHODS@#Antisense miRNA-224 and miRNA-122a plasmids were transfected into non-small cell lung cancer A549 cells on the optimal ultrasound microbubble-mediated condition. We set up a control group. The cell proliferation activity, apoptosis, invasion ability were detected by MTT assay, Annexin V-PE, Transwell invasion experiment and colony formation assay, respectively.@*RESULTS@#The expression of miRNA-224 decreased and the expression of miRNA-122a rose after the plasmids of target genes were transfected into non-small cell lung cancer A549 cells, and there were significant differences when compared with those of the control group (P < 0.05). After the plasmids of target genes were transfected into A549 cells, the growth of antisense miRNA-224 and miRNA-122a were inhibited, and the differences were significant as compared with the control group (P < 0.05). Besides, the inhibition of miRNA-122a group was the most significant and there was statistically significant difference as compared with miRNA-224 group (t = -4.694, P = 0.009). After the plasmids of target genes were transfected into A549 cells, the proportion of apoptotic cells increased, the invasive cells were decreased and the clone ability reduced, and also there was a significant difference as compared with those of the control group (P < 0.05). What's more, the apoptotic peak appeared in miRNA-122a group. Its invasion ability decreased most obviously (40.25 ± 3.97/visual field), the number of clone ability was 104.93 ± 4.87 and the inhibitory effect was the most obviously. There was statistically significant difference as compared with other groups (P < 0.05).@*CONCLUSIONS@#A549 cells transfected by ultrasound microbubble-mediated antisense miRNA-224 and miRNA-122a plasmids possessed good transfection efficiency. The cell growth, invasion and colony-forming abilities of transfected A549 cells were suppressed, which laid a solid foundation for the gene therapy of non-small cell lung cancer.

20.
International Journal of Laboratory Medicine ; (12): 289-290, 2016.
Article in Chinese | WPRIM | ID: wpr-491767

ABSTRACT

Objective To use mouse astrocytes elevated gene‐1 (AEG‐1) monoclonal fluorescent antibody for detecting tumor cells in malignant serous cavity effusions .Methods The expression of AEG‐1 in serous cavity effusion exfoliated cells by PCR and Western‐blot ;the mouse monoclonal anti‐AEG‐1 fluorescent antibody and tumor cells in malignant serous cavity effusions were co ‐incubated ,meanwhile ,the serous cavity effusions in benign lesions were taken as the negative control .Results The AEG‐1 expres‐sion was positive in malignant serous cavity effusions exfoliated cells ,while which in benign lesion serous cavity effusion was nega‐tive or weakly positive ;meanwhile the results of direct labelling in mouse anti AEG‐1 monoclonal antibodies were consistent with the results by PCR and Western‐blot .Conclusion Mouse anti AEG‐1 monoclonal fluorescence antibody can provide certain theoret‐ical basis for the detection of tumor cells in serous cavity effusion .

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