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Objective:To investigate CT manifestations of perivascular epithelioid cell tumors.Methods:The multi-slice spiral CT manifestations in 11 patients with perivascular epithelioid cell tumors which were pathologically confirmed in the First Affiliated Hospital of Shantou University Medical College between October 2012 and August 2021 were retrospectively analyzed.Results:Perivascular epithelioid cell tumors were located in the kidney of eight patients, in the right lobe of the liver of two patients, and in the descending colon of one patient. The largest tumor, approximately 20.0 cm × 26.0 cm × 11.0 cm, was located in the kidney. The smallest tumor, 2.4 cm × 2.6 cm × 3.4 cm, was located in the colon. CT plain scans showed uniform density without bleeding, calcification, or fat in two patients, and non-uniform density with fatty change in two patients. Contrast-enhanced CT images showed non-uniform enhancement in the arterial phase in 10 patients and uniform enhancement in one patient. Contrast-enhanced CT images showed decreased degrees of enhancement of the lesions in 11 patients from the portal venous phase to the delayed phase and dilated and tortuous vascular shadows in 11 patients.Conclusion:The multi-slice spiral CT manifestations of perivascular epithelioid cell tumors are characteristic and the multi-slice spiral CT is of value for the diagnosis of perivascular epithelioid cell tumors.
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Objective@#To explore the value of contrast-enhanced ultrasound in the biopsy of patients with breast imaging reporting and data system (BI-RADS) score of 4 lesions.@*Methods@#Total of 136 cases of breast BI-RADS scores of 4 lesions admitted to Dongguan People′s Hospital from June 2017 to May 2018 were enrolled and randomly divided into contrast-enhanced ultrasound group and general ultrasound group, 68 cases in both group. The contrast-enhanced ultrasound group received contrast-enhanced ultrasound-guided breast nodule biopsy, and the general ultrasound group received general ultrasound-guided breast nodule biopsy. The success rate of puncture, the number of puncture needles, the satisfaction rate of the materials, the diagnostic sensitivity, the diagnostic specificity, the diagnostic coincidence rate, and the incidence of adverse puncture reactions were compared between two groups.@*Results@#The puncture success rate of both groups were 100%. The number of puncture needles in contrast-enhanced ultrasound group was (2.89±0.56)times, and the general ultrasound group was (2.93±0.62)times, with no statistically significant difference (P>0.05). The satisfaction rate of materials in the contrast-enhanced ultrasound group was 100%(68/68), and the general ultrasound group was 94.12%(64/68), with no statistically significant difference (P>0.05). The sensitivity in the contrast-enhanced ultrasound group and the general ultrasound group were 88.89%(32/36) and 81.82%(27/33), respectively, with no statistically significant difference (P>0.05). The specificity and coincidence rate in contrast-enhanced ultrasound group were 100%(32/32) and 94.12%(64/68), which were higher than 80.65%(25/31) and 81.25%(52/64) of the general ultrasound group, with statistically significant difference (P<0.05). The incidence of adverse reactions in the general ultrasound group and the contrast-enhanced ultrasound group were 10.94%(7/64) and 2.94%(2/68), respectively, with no statistically significant difference (P>0.05).@*Conclusions@#The contrast-enhanced ultrasound-guided breast nodule biopsy can achieve high puncture success rate in patients with breast cancer with BI-RADS scores 4 lesions, and help to confirm lesion activity, necrotic liquefaction area, more accurate localization, improved material satisfaction rate and biopsy, diagnostic efficacy, with significant clinical value.
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Objective To explore the value of contrast-enhanced ultrasound in the biopsy of patients with breast imaging reporting and data system (BI-RADS) score of 4 lesions.Methods Total of 136 cases of breast BI-RADS scores of 4 lesions admitted to Dongguan People's Hospital from June 2017 to May 2018 were enrolled and randomly divided into contrast-enhanced ultrasound group and general ultrasound group,68 cases in both group.The contrast-enhanced ultrasound group received contrast-enhanced ultrasound-guided breast nodule biopsy,and the general ultrasound group received general ultrasound-guided breast nodule biopsy.The success rate of puncture,the number of puncture needles,the satisfaction rate of the materials,the diagnostic sensitivity,the diagnostic specificity,the diagnostic coincidence rate,and the incidence of adverse puncture reactions were compared between two groups.Results The puncture success rate of both groups were 100％.The number of puncture needles in contrast-enhanced ultrasound group was (2.89 ± 0.56) times,and the general ultrasound group was (2.93 ± 0.62) times,with no statistically significant difference (P ＞ 0.05).The satisfaction rate of materials in the contrast-enhanced ultrasound group was 100％ (68/68),and the general ultrasound group was 94.12％ (64/68),with no statistically significant difference (P ＞ 0.05).The sensitivity in the contrast-enhanced ultrasound group and the general ultrasound group were 88.89％ (32/36) and 81.82％ (27/33),respectively,with no statistically significant difference (P ＞ 0.05).The specificity and coincidence rate in contrast-enhanced ultrasound group were 100％ (32/32) and 94.12％ (64/68),which were higher than 80.65％ (25/31) and 81.25％ (52/64) of the general ultrasound group,with statistically significant difference (P ＜ 0.05).The incidence of adverse reactions in the general ultrasound group and the contrast-enhanced ultrasound group were 10.94％ (7/64) and 2.94％ (2/68),respectively,with no statistically significant difference (P ＞ 0.05).Conclusions The contrast-enhanced ultrasound-guided breast nodule biopsy can achieve high puncture success rate in patients with breast cancer with BI-RADS scores 4 lesions,and help to confirm lesion activity,necrotic liquefaction area,more accurate localization,improved material satisfaction rate and biopsy,diagnostic efficacy,with significant clinical value.
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<p><b>OBJECTIVE</b>To investigate the effect of anti-miR-145 on human airway smooth muscle cell (HASMC) proliferation and osteopontin systhesis in vitro and explore the mechanisms.</p><p><b>METHODS</b>HASMCs were treated with 10-100 nmol/L anti-miR-145, and the cell proliferation and apoptosis were investigated using a CCK-8 assay and flow cytometry, respectively. The changes in osteopontin synthesis after the treatment was quantified with Western blotting.</p><p><b>RESULTS</b>Treatment with 10 and 50 nmol/L anti-miR-145 significantly promoted the proliferation and osteopontin synthesis in HASMCs (P<0.05 or <0.01), and 50 nmol/L anti-miR-145 obviously inhibited the cell apoptosis (P<0.01).</p><p><b>CONCLUSION</b>Anti-miR-145 promotes HASMC proliferation and osteopontin synthesis and inhibits HASMC apoptosis in vitro, indicating the important role of anti-miR-145 in the pathogenesis of airway remodeling.</p>
Subject(s)
Humans , Airway Remodeling , Apoptosis , Cell Proliferation , Cells, Cultured , MicroRNAs , Myocytes, Smooth Muscle , Osteopontin , Respiratory System , Cell BiologyABSTRACT
Objective To evaluate the accuracy and utility of percutaneous ultrasonic cholangiography in Bismuth staging of hilar cholangiocarcinoma. Methods Thirty patients who underwent surgery and obtained pathologic diagnosis of hilar cholangiocarcincoma were perspectively ruled in this study. All patients with hilar obstruction underwent baseline ultrasound (BUS), percutaneous ultrasonic cholangiography (PUSC) and percutaneous transhepatic cholangiography(PTC) respectively. Taking operative findings as reference standard,the accuracy of the three imaging modalities in staging of hilar cholangiocarcinoma was compared. Results Among 30 patients, the accuracy of classification among BUS, PUSC and PTC was 23.3 % (7/30), 73.3 % ( 22/30 ), 73.3 % (22/30), respectively. There was statistically significant difference between BUS and PUSC, but the difference between PUSC and PTC was not statistically significant.Conclusions As a new technique for cholangiography, PUSC expands the application of ultrasound in evaluating hilar cholangiocarcinoma and is comparable to PTC in classifying hilar cholangiocarcinoma by Bismuth classification.
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AIM: To investigate the influence and mechanism of recombinant macrophage migration inhibitory factor(rMIF) on fibroblasts.METHODS: MRC-5 fibroblasts were divided into two groups: the treated group was treated with rMIF(25-100 ?g/L,12 h,24 h or 48 h) and the control was non-rMIF treatment.The activity of proliferation in both groups was investigated and compared by CCK-8 means.Synthesis of collagen in the culture supernatants was detected by the hydroxyproline.The expression of collagen type I mRNA was examined using RT-PCR analysis.The level of collagen type I protein induced by rMIF was quantified by Western blotting.RESULTS: The production of proliferation ratio of fibroblasts treated with 50 ?g/L and 100 ?g/L rMIF at 24 h or 48 h were increased obviously(P
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Objective:To explore the expression of ROR?t in pulmonary tissue of asthmatic mice and to investigate the association between the expression of ROR?t and the airway inflammation.Methods:Thirty female BLAB/c mice were randomly divided into the control group,asthmatic group and dexamethasone (Dex)-treated group.The asthma model was induced by classical method with ovalbumin(OVA).The concentration of IL-17 in bronchoalveolar lavage fluid (BALF) and serum was measured by enzyme-linked immunosorbent assay(ELISA).Airway inflammation was evaluated by HE staining.The expressions of IL-17,ROR?t mRNA and protein was measured by reverse transcription-polymerase chain reaction(RT-PCR) and Western blot respectively.Results:The level of IL-17,ROR?t mRNA and protein of asthmatic group was significantly higher than those of control group and Dexamethasone treated group (P