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Objective To analyze muscle pre-activation and surface electromyography (sEMG) characteristics of knee and ankle joints of long-term Tai Chi practitioners during brush-knee twist-step and normal walking, and explore the neuromuscular control strategies of Tai Chi to prevent falls. Methods Vicon motion capture system, Kistler force plate, and Noraxon sEMG system were synchronously used to collect the EMG signals of the rectus femoris, biceps femoris, tibialis anterior muscle, lateral head of gastrocnemius and body posture information during brush-knee twist-step and normal walking. The pre-activation and co-contraction of knee and ankle joints were calculated by integrated EMG of the rectus femoris/biceps femoris, tibial anterior/lateral gastrocnemius muscles. Results Compared with normal walking, the average time of brush-knee twist-step in four phases was significantly increased. There was a significant difference in the percentage of time in four phases. The knee joint co-contraction level and pre-activation level decreased, and the ankle joint co-contraction level and pre-activation level increased. Conclusions Long-term Tai Chi exercises may increase the activation level of the muscles around knee joints and enhance the synergy in muscle groups to help stabilize the joint. The results provide references for rehabilitation assessment and training of neuromuscular control disorders.
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Objective:To investigate the correlation between modified Glasgow prognostic score (mGPS) and prognosis of intrahepatic cholangiocarcinoma (ICC) patients after radical surgical resection.Methods:The clinical data of 126 patients with intrahepatic cholangiocarcinoma undergoing radical surgical resection at Ningbo Medical Centre Lihuili Hospital from Jan 2011 to Dec 2020 were retrospectively analyzed. The patients were scored according to the mGPS-related scoring standards, and the differences in tumor clinicopathological characteristics and prognosis were compared between patients with different score levels.Results:Firty-eight cases were included in group 0, 41 cases in group 1, and 27 cases in group 2. The 1- and 3-year survival rates in group 0 were 85.8% and 52.3%, the 1- and 3-year survival rates in group 1 were 73.2% and 23%, and the 1- and 3-year survival rates in group 2 were 73.3% and 0. The difference was statistically significant ( P<0.05). Univariate analysis showed that age, mGPS, CA19-9, tumor diameter, and tumor differentiation were related at the prognosis of ICC. Multivariate analysis showed that age, tumor differentiation, tumor diameter and mGPS were independent risk factors for the prognosis of ICC. Conclusion:mGPS is an independent risk factor affecting the prognosis of ICC patients.
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AIM: To study the curative efficacy of retetrexel combined with laparoscopic hepatectomy in treatment of patients with primary liver cancer and its effects on liver function and the effects of diurnal transcription suppressor (CIART), fetoprotein heterosomes (AFP-l3), golgi membrane protein-73 (GP73). METHODS: A total of 100 patients with primary liver cancer who were treated in our hospital from July 2012 to July 2019 were selected as study subjects, the patients were divided into observation group (n=52) and control group (n=48) according to the order of admission. The control group was treated with laparoscopic hepatectomy, and the observation group was treated with retetroxel on the basis of the control group. Serum CIART, AFP-L3, GP73, ALT, AST, TBIL, 1-year, 3-year, 5-year tumor recurrence rates and adverse reactions were compared between the two groups before and after treatment. RESULTS:Before treatment, CIART, AFP-L3, GP73, ALT, AST and TBIL levels were not significantly different between the two groups. After treatment, the levels of CIART, AFP-L3 and GP73 in the observation group were significantly lower than those in the control group (P0.05). The 5-year recurrence rate in the observation group was significantly lower than that in the control group (P0.05). The total incidence of adverse reactions in the two groups was 53.84% and 52.08%, respectively, with no significant difference (P>0.05). CONCLUSION:Laparoscopic resection combined with letetrexed in the treatment of primary liver cancer can effectively reduce the level of ciart, AFP-L3 and GP73, and it is safe.
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Objective@#To explore the predictive significance of logarithm of lymph node positive number to lymph node negative number (LODDS) in patients with gallbladder cancer, and to establish a predictive model of gallbladder cancer based on LODDS.@*Methods@#The clinical data of 1321 gallbladder cancer patients who underwent lymphadenectomy in SEER database from 2010 to 2014 were collected. They were randomly divided into test group (n=793) and verification group (n=528). COX multivariate analysis was used to determine independent prognostic factor, and a Nomogram prediction model was established. C index was used to evaluate the accuracy of patient Nomogram and TNM. ROC curve was used to evaluate the accuracy of the contour map and TNM staging in predicting survival rates.@*Results@#Independent risk factors for COX analysis were selected including age, tumor size, grade, TNM stage and LODDS analysis, and the contour map was drawn. In the experimental group, the C index was 0.744 (95% CI, 0.707-0.781), and the AUC values of ROC curves predicting 3-year and 5-year survival were 0.815 and 0.823, respectively. The predictive value of C index for TNM staging in the test group was 0.699 (95% CI, 0.662-0.736), and the AUC value of ROC curve for TNM staging predicting 3-year and 5-year survival was 0.779 and 0.790, respectively.@*Conclusion@#LODDS is an independent prognostic factor for gallbladder cancer. The prediction model based on LODDS is more accurate than TNM staging.
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Objective To explore the predictive significance of logarithm of lymph node positive number to lymph node negative number (LODDS) in patients with gallbladder cancer,and to establish a predictive model of gallbladder cancer based on LODDS.Methods The clinical data of 1321 gallbladder cancer patients who underwent lymphadenectomy in SEER database from 2010 to 2014 were collected.They were randomly divided into test group (n =793) and verification group (n =528).COX multivariate analysis was used to determine independent prognostic factor,and a Nomogram prediction model was established.C index was used to evaluate the accuracy of patient Nomogram and TNM.ROC curve was used to evaluate the accuracy of the contour map and TNM staging in predicting survival rates.Results Independent risk factors for COX analysis were selected including age,tumor size,grade,TNM stage and LODDS analysis,and the contour map was drawn.In the experimental group,the C index was 0.744 (95％ CI,0.707-0.781),and the AUC values of ROC curves predicting 3-year and 5-year survival were 0.815 and 0.823,respectively.The predictive value of C index for TNM staging in the test group was 0.699 (95 ％ CI,0.662-0.736),and the AUC value of ROC curve for TNM staging predicting 3-year and 5-year survival was 0.779 and 0.790,respectively.Conclusion LODDS is an independent prognostic factor for gallbladder cancer.The prediction model based on LODDS is more accurate than TNM staging.
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Objective To investigate the clinical outcomes of liver transplantation by using donation after cardiac death (DCD) in single center.Methods The clinical data of 115 DCD donors and recipients of liver transplantation from Jan 2012 to Sep 2017 at our institution were analyzed,including preoperative general data,intraoperative status,and postoperative early complications.Patients were followed up to Oct 30th,2017.The measurement data with normal distribution were analyzed by t test,the enumeration data were analyzed by chi-square test or Fisher exact probability test,and the Kaplan-Meier method was used for survival analysis.Results All of the 115 donors were within China category Ⅲ using the classification of China donor after cardiac death.Donor graft mean warm ischemic time and cold ischemic time was (10 ± 4) min and (6.1 ± 1.7) h,respectively.All of the recipients underwent liver transplantation successfully.The mean preoperation MELD score was 14 ± 7.Seven patients were ABO-incompatible liver transplantation (A→O,3 cases,B→O 2 cases,AB→O 1 case,AB→A 1 case).19 patients (16.5％) had postoperative complications (Clavien-Dindo classification grade Ⅲ-Ⅴ).The perioperative mortality was 2.6％ (3 cases).All patients were followed up for an average (21 ± 17) mon.Patients 1-,3-,and 5-year survival rates were 93.6％,81.8％,and 77.5％,respectively.Conclusion The outcome of DCD liver transplantation is favorable at our institution under careful donor and recipient selection and intensive perioperative management.
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Objective To explore the antibacterial activity and cytocompatibility of chitosan-nano-silver complex thermosensitive hydrogel. Methods There were 4 groups: group A (containing 1 ×10-5 chitosan-nano-silver complex thermosensitive hydrogel), group B (containing 5 ×10-6 chitosan-nano-silver complex thermosensitive hydrogel) , group C ( containing 2 ×10-6 chitosan-nano-silver complex thermosensitive hydrogel) , group D ( chitosan thermosensitive hydrogel ) .The antibacterial activity of the samples against six kinds of gram-negative bacteria, one kind of gram-positive bacterium, three kinds of fungi were measured by bacteriostatic circle.The cytocompatibility of the extraction to NIH-3T3 cells was studied by SRB. Results The antibacterial activity enhanced with the increasing of nano silver concentration in chitosan-nano-silver complex thermosensitive hydrogel, whose antibacterial activity was better than chitosan thermosensitive hydrogel; its extraction has no cytotoxicity, thus showed good cytocompatibility. Conclusion The chitosan-nano-silver complex thermosensitive hydrogel is a potential novel wound dressing.
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Objective To find the potential risk factors for pancreatic fistula after distal pancreatectomy.Methods Clinical data of 125 cases of consecutive distal pancreatectomy in Ningbo Lihuili Hospital from January 2006 to June 2013 were retrospectively analyzed.Results In all the 125 patients with distal pancreatectomy,pancreatic fistula was the most common surgical complication (43/125,34.4％),including 27 cases of grade A fistula,16 cases of grade B pancreatic fistula.Multivariate analysis showed that the texture of the pancreas and main pancreatic duct ligation were the independent risk factors for pancreatic fistula (all P ＜ 0.05).Conclusions Pancreatic fistula was the most common surgical complication of distal pancreatectomy.The texture of the pancreas and main pancreatic duct ligation effect the occurrence of postoperative pancreatic fistula.
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Objective To investigate the diagnosis and treatments of delayed endolymphatic hydrops(DEH).Methods A restrospective study was conducted in 37 cases of DEH.who were tested with pure tone threshold,vestibular evoked myogenic potentials,high stimulation rate auditory brainstem response audiometry and vestibular ruction test.Conservative drug therapy was the major treatment.Results All the 37 patients had sensorineural hearing loss up to the medium-severe degrees at least.Twenty-five had hearing loss and endolymphatic hydrops on the same side,nine had contralateral type and three bilateral type.Ten cases had abnormal horizontal semicircular canal(HSCC) hydrops and saccular hydrops.Nine cases had abnormal HSCC function and nomal saccular function.Fifteen cases had abnormal saccular function and normal HSCC function.Twenty-five abnomalVEMP showed of loss of p13-n23,prolonged latencies of p13 and depressed amplitude cases with of p13-n23.18 cases were completely relieved from vertigo in a week.17 cases improved until totally relieved in two weeks,while the rest 2 cases that were subject to chemistry labyrinthectomy free of vertigo attack.Conclusion Pure tone threshold,EcochG,bithermal caloric test and vestibular evoked myogenic potentials are important diagnosis methods of delayed endolymphatic hydrops.Consevative drug therapy,especially diuretics and vascular dilation may play a major role in the treatment of delayed endolymphatic hydrops.
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<p><b>OBJECTIVE</b>To investigate the effects of ampelopsin on B16 melanoma's invasion and metastasis in vivo and in vitro.</p><p><b>METHOD</b>B16 mouse melanoma cells were injected into C57BL/6 mouse via tail lateral vein, which subsequently colonized into the animal lungs to form an experimental pulmonary metastasis of tumor cell. The ampelopsin was administered at 3 dosages by intraperitoneal injection daily for 18 days from the day before the cells injection. The B16 mouse melanoma cells were exposed to ampelopsin for 3 days. The effects of ampelopsin on invasion, migration and adhesion of B16 melanoma cells were evaluated with Transwell chambers or attachment with polycarbonate filters and reconstituted basement membrane (Matrigel).</p><p><b>RESULT</b>The number of metastases in the animals that were given ampelopsin 150, 200, and 250 mg x kg(-1) x d(-1) was significantly reduced as compared to the vehicle control (P<0.05), and the inhibition rates were 30.97%, 40.58%, and 61.16%, respectively. The ability of the ampelopsin treated B16 cells to invade the reconstituted basement membrane was decreased significantly (P<0.01), and the inhibition rates were 36.06%, 59.58%, and 79.09% at 20 micromol x L(-1), 40 micromol x L(-1) and 80 micromol x L(-1) concentration, respectively. Ampelopsin could also inhibit B16 cells migration through PVPF in the Transwell chambers, and the inhibition rates were 51.59%, 56.51%, and 66.75% at 20 micromol x L(-1), 40 micromol x L(-1) and 80 micromol x L(-1), respectively (P<0.01). The ability of adhesion of the B16 cells by ampelopsin treated cells on fibronectin, laminin, or Matrigel was decreased significantly.</p><p><b>CONCLUSION</b>Ampelopsin has anti-invasive and anti-metastatic effects on B16 melanoma.</p>