Objectiye To discover the related factors that affect nerveus function rehibilation after noninjuries spinal cord of. Method A total of 19 patients with intramedullary spinal function, characters of tumors, opertive methods snd early rehibilations of nervous functions postoperstion were studied. Result Benign tumors had clear demarcations , and rate of total resection was high, prognosis was better. But malignant tumors could infiltratively grow. It was difficult to recognize its demarcation, so function spinal tissue can be injured by operation, and trealment effect was affected. If a patient had already complete palsy preoperation, his spineal cord functions was difficult to improve postoperation. Conclusiou There were important factors that affected early rehibilation of spinal cord functions, inclunding pathologic character, degree of resection, operation methods and preoperative spinal cord conditions etc. But early rehabilating therapy can quicken the step of rehibilation and degree of rehabilation of spinal function after operation.

Objective: Purpose to investigate the different in vitro function of targetable non-viral vector containing poly-L-lysine or protamine. Methods: Using GV1 and GV2 targetable non-viral vectors, the influences of the poly-L-lysine and protamine on in vitro gene transfer efficiency and the course of gene expression were observed. Results: ?-galactosidase was expressed at intermediate level (50% ) in A375 cells using a complex containing either protamine or poly-L-lysine. Howerver, in case of ABAE cells, ?－galactosidase expression level was low (20% ) transferred with a comPlex containing protamine. On the contrary, ?－ galactosidase expression was at high level (70% ) provided that protamine was replaced with poly-L-lysine. In addition, ?-galac- tosidase activity reached the peak at the 6th day after transfection with the complex containing protamine. The expression was not altered with subsequent subcultures, at least for 3 passages. Using poly-L-lysine, the expression peak in A375 reached the peak at the 7th day after transfection, but the level declined along with subsequent passages of cells. Conclusion: The apllication of protamine in VEGF receptor mediated gene delivery system was limited.

Objective To sum up our experience on the diagnosis and treatment of rare hepatic tumors. Methods The data of 25 patients with rare liver tumors admitted in our hospital from May 2005 to January 2010 were analyzed retrospectively. Results The final pathologic diagnosis of focal nodular hyperplasia was made in 6 cases, and the diagnosis of vascular leiomyoma, hilar neurilemoma, intrahepatic aneurysm, biliary cystadenoma, hepatic hamartoma, biliary villous adenoma, and hepatic diffuse large B-cell lymphoma was established in one each case, respectively. The diagnosis of angiomyolipoma in 2patients, primary liver gastroimestinal stromal tumor in 2 patients, hepatoblastoma in 5 patients and liver undifferentiated sarcoma in 3 patients was established. Preoperative ultrasonography, CT and MRI were performed in 24, 22 and 6 patients respectively. Preoperative tentative diagnosis was finally confirmed by pathology in only 3 (16.7%) cases, all by CT report. Preoperative diagnosis was consistent with postoperative pathology in 5 patients (20%); All patients underwent liver resection including hemihepatectomy in 7 patients, hepatic lobectomy in 7 patients, segmentectomy in 9 patients and tumor enucleation in 2 patients; There was no recurrence after resection of benign, low malignant tumors and hepatic diffuse large B-cell lymphoma; Postoperative follow-up was made for all the 5 cases of malignant tumours, and there was recurrence in 3 cases. These 3 eases underwent second resection and there were no recurrences after reoperation. The two recurrent patients died with a mean survival of 4 months.Conclusions The preoperative correct imaging diagnostic rate for rare hepatic tumors is low. Surgery is the most effective therapy and reoperation should always be attempted for tumor recurrence in order to prolong survival.

A method to determine phytolith-occluded carbon ( PhytOC) was explored. Sodium hydroxide solution was used to dissolve the silicon compound(SiO2 ·nH2O) which occluding on the carbon, and then potassium dichromate-sulphuric acid solution was used to oxidize the released organic carbon. The concentration of Gr3+produced from the reaction was measured by spectrophotometry with its absorbance at 590 nm wavelength. The organic carbon concentration was calculated based on the amounts of potassium dichromate consumed. This analytical method was verified well accuracy and repeatability by running standard addition and recovery experiments. It has the advantages of low carbon loss, easy to operate, low cost;and hardly any influence to body health, as compared with acid dissolution-Elementar Vario MAX CN method. The results obtained from this method have a good correlation with these determined by Elementar Vario MAX CN ( Germany) .

Objective To study the clinical effect of total parathyroidectomy with subcutaneous autotransplantation (TPTX + AT) in the treatment of secondary hyperparathyroidism(SHPT) in patients with chronic renal failure.Methods One hundred and thirty-four patients undergoing TPTX + AT in our hospital from January 2013 to October 2014 were includud in this study.The preoperative,postoperative and follow-up intact parathyroid hormone (iPTH),serum calcium,serum phosphorus and calcium-phosphorus product were statistically analyzed.The Kidney Disease Quality of Life Short Form (KDQOL-SFTM) scale was used to evaluate quality of life before and one year after parathyroidectomy.Postoperative complications and recurrence were observed.Results Postoperative iPTH,serum calcium,serum phosphorus and calciumphosphorus product decreased significantly compared with that before surgery.The difference had statistical significance (all P ＜ 0.05).One patient died in perioperative period.Temporary injury of recurrent laryngeal nerve was found in eight patients.Early postoperative hypocalcemia was frequently seen in 124 patients (92.5％) and in 7 cases (5.2％) occured intractable hypocalcemia.The quality of life was significantly improved one year after parathyroidectomy.Recurrence developed in 5 patients after operation.Conclusions TPTX + AT is safe and effective in the treatment of SHPT in patients with chronic renal failure and can significantly improve the patient's quality of life.

Purpose To investigate the clinicopathological characteristics and treatment of combined hepatocellular carcinoma-cholangio carcinoma (cHCC-CC).Methods 24 cases of cHCC-CC were collected.The clinical pathological characteristics,imaging,immunophenotyping and clinical features were retrospectively analyzed and reviewed the literature.Results There were 18 males and 6 females in 24 cases of cHCC-CC.The age ranged from 36 to 68 years (mean age was 54.38).Tumour location:right hepatic lobe in 15 cases,left hepatic lobe in 6 cases,both left lobe and right hepatic lobe in 1 case,hepatic caudate and left lateral lobe in 1 case,diffuse nodular liver tumors in 1 case.Grossly,the texture and color of tumor was related to the composition of tumor.Microscopically,classic cHCC-CC had two areas composed of hepatocellular carcinoma area and cholangiocar cinoma area of mixed distribution or migration distribution.3 cases were cHCC-CC with stem cell properties (cholangiolocellular carcinoma type,CLC type).Immunohistochemical staining revealed that HCC like area mainly expressed CD10,CK8,Hepatocyte and CD10,cHCC-CC area expressed CK7 and EMA.CLC type expressed the immunophenotypic features of intermediate type of HCC.Conclusion The clinical manifestations of cHCC-CC are not specific,the preoperative diagnosis is difficult,and it should be combined with pathological characteristics,imaging features and immunophenotype diagnosis.

Objective To investigate the micro-anatomical approach to resect both intracranial and extracranial jugular foramen tumors in one-stage. Methods With the aid of surgical microscope, fifteen cadaver heads were used to study the microsurgical anatomy of high cervical part and jugular foramen, measure relative data. Results Detailed dissection was performed on high cervical part between the 1st cervical vertebra and the 4th cervical vertebra, resect foramen processus transversi of the 1st cervical vertebra, free vertebral artery 2nd and 1st cervical vertebra segment and horizontal segment. The jugular tubercle, jugular tunisia and part of the occipital condylus was drilled away as much as possible, total exposure of lateral semicircular canal was completed after the removal of the mastoid revealed labyrinthinem. Then the sigmoid sinus and jugular bulb were skeletonized. The vertical of segment of facial nerve was fully skeletonized to study the necessity of the facial nerve translocation. Full exposure to the sigmoid sinus, open jugular foramen. JF areas expanded, and the measured parameters revealed. The distance was (29.65 ± 3.24)mm from mastoidalec to oncentrated focus of condyle (10.18 ± 0.81)mm from hinder margin of condyle to endostoma of hypoglossal canal. The left distance was (6.8 ± 0.35)mm from jugular foramen to perpendicular part of facial nerve, right was (4.6 ± 0.33)mm. Conclusions Total exposure of JF can be achieved through the approach we described, and will enable the facial nerve, cochlea, and the structure of the vertebral artery to be performed. Both intracranial and extracranial tumors can be removed in a one-stage procedure related to anatomical parameters. Improve the cure, reduce complication and lower mortality.

Objective To explore the disease spectrum characteristics of hospitalized children having joined new rural cooperative medical system (NCMS) in Jinjiang, in order to provide reference for developing disease prevention and control measures for the children. Methods The disease spectrum of NCMS hospitalized children under 14 years old in Jinjiang from January to December 2013 were analyzed. Results The NCMS hospitalized children's disease attack was related to age and sex. Children in different age stages had different ranks of disease constitution, but respiratory and digestive system diseases always ranked the top 3 in each age group. The top 5 system diseases affecting children's health were respiratory diseases ( 63 . 60%) , digestive diseases ( 11 . 04%) , certain infectious and parasitic diseases (5.41%), certain conditions originated in perinatal period (3.17%), and certain consequences caused by injury, poison-ing and external causes (2.76%);The top 5 system diseases affected 85.99%of the total hospitalized children. Regard-ing to single disease rank, the top 5 diseases were all respiratory system diseases, (unspecified) bronchial pneumonia (22.83%), (unspecified) acute tonsillitis (9.26%), (unspecified) acute upper respiratory tract infection (8.99%), (unspecified) acute bronchitis (8.82%) and unspecified pneumonia (5.38%); The top 5 diseases affected 55.28% of the total hospital-ized children. Conclusion Respiratory disease is the major disease threatening the children's health in Jinjiang. It is suggested that medical and health resources be adjusted rationally, specific effective methods and measures be taken to prevent respiratory diseases, and relevant prevention and control measures be developed based on the disease constitu-tions of children in different age groups.

Objective:To compare the diagnostic accuracy between multiparametric magnetic resonance imaging (mp-MRI) and biparametric magnetic resonance imaging (bp-MRI) in muscle-invasive bladder cancer (MIBC).Methods:The clinical data of 195 patients with bladder cancer at the First Affiliated Hospital of Nanjing Medical University from July 2020 to June 2022, were retrospectively reviewed. There were 160 males and 35 females, with the median age of 68(61, 76)years old. Mp-MRI was performed on each patient within 6 weeks before transurethral resection of bladder tumor or radical cystectomy. Each patients’ images were divided into two sets. Set 1 (bp-MRI) included the axial, sagittal, coronal T2-weighted images (T2WI), and axial diffusion-weighted images (DWI) or apparent diffusion coefficient maps. Set 2 (mp-MRI) included Set 1 images in addition to dynamic contrast-enhanced images. All images were independently reviewed and evaluated by two radiologists. Mp-MRI was evaluated according to the Vesical Imaging-Reporting and Data System (VI-RADS)guideline, and bp-MRI was evaluated according to two types of criteria. Bp-MRI (Criterion A): VI-RADS scoring is determined 2 when T2WI 3-point with DWI 2-point. Bp-MRI (Criterion B): VI-RADS scoring is determined 3 when T2WI 3-point with DWI 2-point. VI-RADS scoring ≥ 3 or ≥ 4 was used as the cut-off value to predict MIBC. The sensitivity, specificity, positive predictive value, and negative predictive value of mp-MRI, bp-MRI (Criterion A), and bp-MRI (Criterion B) were calculated, as well as receiver operating characteristic curves and the areas under the curve (AUC).Results:Of 195 patients, 135 patients (69.2%) were pathologically confirmed as NMIBC and 60 patients (30.8%) were MIBC. When the VI-RADS cut-off value was ≥ 3, the sensitivity of mp-MRI, bp-MRI (Criterion A), and bp-MRI (Criterion B) were identical, all at 88.3% (53/60). The specificity of bp-MRI (Criterion A), bp-MRI (Criterion B), and mp-MRI were 88.9% (120/135), 73.3% (99/13), and 86.7% (117/135), respectively. When the VI-RADS cut-off value was ≥ 4, both bp-MRI (Criterion A) and bp-MRI (Criterion B) were classified as the same criterion. The sensitivity of bp-MRI and mp-MRI were 70.0% (42/60) and 75.0% (45/60), respectively. The specificity of bp-MRI and mp-MRI were identical, at 95.6% (129/135). The AUC for bp-MRI (Criterion A), bp-MRI (Criterion B), and mp-MRI were 0.927 (95% CI 0.881-0.959), 0.904 (95% CI 0.853-0.941), and 0.927 (95% CI 0.881-0.959), respectively. The AUC for bp-MRI (Criterion A) and mp-MRI were significantly higher than that of bp-MRI (Criterion B) ( P<0.001). There was no significant difference in AUC between bp-MRI (Criterion A) and mp-MRI ( P=0.939). Conclusions:Bp-MRI (Criterion A), VI-RADS scoring is determined 2 when T2WI 3-point with DWI 2-point, shows comparable diagnostic accuracy in predicting MIBC with mp-MRI. Compared to bp-MRI (Criterion B), the corresponding situation when VI-RADS scoring is determined 3, bp-MRI (Criterion A) may have better diagnostic accuracy than bp-MRI (Criterion B) in predicting MIBC.

Objective:To investigate the curative efficacy and application value of convalescent plasma (CP)in severe and critical coronavirus disease 2019 (COVID-19) caused by Delta variant.Methods:The treatment process and results of CP therapy for a patient with critical COVID-19 caused by Delta variant were reported. The clinical application value of CP for COVID-19 caused by Delta variant was analyzed along with the literature review.Results:Our case was a 50-year-old male, who was imported from abroad and had not been vaccinated against COVID-19. The novel coronavirus nucleic acid test was negative before entry. On the second day after entry, fever occurred, novel coronavirus nucleic acid test was positive. Chest CT images showed bilateral multiple mottling and ground-glass opacity with symptoms of nausea, headache, loss of appetite, diarrhea, but no running nose, nasal obstruction, dyspnea, abnormal smell and taste. The infection rapidly developed from medium to critical. On the basis of standard treatment, Delta variant CP was intravenous dripped on the 10th day of hospital admission (the 6th day after becoming severe). The patient's condition improved rapidly.Conclusion:The curative efficacy evaluation of this patient proved that CP therapy is of great value in the treatment of severe and critical COVID-19.