ObjectiveTo observe effect of echinococcus cyst fluid on proliferation and cell cycle progression of rat hepatic stellate cells (HSC-T6), and to preliminarily reveal a new mechanisms of pro-fibrogenic effect of alveolar echinococcosis. MethodsHSC-T6 cells were treated with different concentrations (0.00-0.90 mg/mL) of echinococcus cyst fluid. Then, the morphological changes were observed under the inverted microscope, the impacts on proliferation and cell cycle were tested by the CCK-8 assay and flow cytometry respectively. ResultsAfter treated by echinococcus cyst fluids with different concentrations (0.00-0.90 mg/mL) for 24 h, the most cells shrinked fusiform shape with more slender synapses, and the proliferation activities were increased with the concentration of echinococcus cyst fluid increasing when it was higher than 0.05 mg/mL (P<0.05), the proportion of G0/G1 was decreased (P<0.05) and those of S and G2/M were increased (P<0.05) with the concentration of echinococcus cyst fluid increasing. ConclusionsEchinococcus cyst fluid could promote proliferation of HSC-T6 cells in a dose-dependent manner, which might due to its impact on cell cycle progression. Therefore, alveolar echinococcosis might promote hepatic fibrosis through regulating hepatic stellate cells, but further research on detail needs to be done in future.
ObjectiveTo explore potential value of three-dimensional reconstruction technique for preoperative evaluation of hepatic alveolar echinococcosis. MethodsTwenty-one cases of hepatic alveolar echinococcosis proved by postoperative pathological examination in Affiliated Hospital of Qinghai University from October 2013 to March 2014 were analyzed retrospectively. The three periods of patients’ liver dynamic thin layerCTscan images were collected and imported in three-dimensional reconstruction software by DICOM format. The volume of the virtual resected liver tissue was calculated by software, and then was compared with the actual resected liver tissue volume. ResultsThe resected liver volume was (761.94±505.77) mL and (756.19±501.78) mL in the virtual surgery and in the veritable surgery, respectively. The proportion of resected liver in the total liver was (39.27±18.75)% and (38.95±16.99)% in the virtual surgery and in the veritable surgery, respectively. The resected liver volume had no significant difference between the virtual surgery and veritable surgery (P>0.05), which a positive relation (r=0.989, P<0.001). ConclusionThe limited preliminary data in this study show that three-dimensional reconstruction technique and virtual planning system for surgery could accurately guide resection of lesion and provide preoperative guidance of accurate liver resection for hepatic alveolar echinococcosis.
ObjectiveTo summarize regional and body distributions, diagnosis, treatment, and prognosis of echinococcosis outside liver in China. MethodsThe published literatures about echinococcosis outside liver in China (not including Hong Kong, Macao and Taiwan regions) from 2000 to 2015 were searched in the databases of CNKI and Wanfang. Data were extracted by using a standardized form and a retrospective clinical analysis was performed. ResultsA total of 66 published literatures about echinococcosis outside liver and data of 884 cases reported were collected. The regional proportions of cases reported were different, five high regions were Xinjiang (68.73%), Tibet (8.77%), Ningxia (6.75%), Qinghai (6.41%), Gansu (5.62%). The organ distributions of cases reported were also different, five high organs were lung (61.09%), bone (9.95%), brain (9.73%), spleen (8.60%), and kidney (6.22%). The main clinical symptoms of patients with echinococcosis outside liver included general asymptoms and organ dysfunction, and the most common examinations were X-ray (30.77%), B ultrasound (7.47%),CT(17.43%), MR (1.59%), and laboratory (36.31%). The main therapy choice was operation (73.30%), and some patients were performed operation combined with drug therapy. ConclusionRegional distribution of echinococcosis outside liver is almost the same as total echinococcosis, and distributed more in organs rich in blood supply, its clinical diagnosis mainly depends on imaging and immunology examination, and operation is still the main therapy choice.