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BACKGROUND:At present,plant-derived absorbable hemostats are mainly imported,so it is necessary to develop domestic alternatives that are not inferior to similar imported products. OBJECTIVE:To investigate the hemostatic effect of oxidized regenerated cellulose hemostatic material on a model of minipig liver hemorrhage. METHODS:A total of 24 Bama minipigs were selected and randomly divided into three groups.In the sham operation group(n=6),only an open operation was performed,and the damaged side of the liver was removed and put back in situ.In the experimental group(n=12),the liver hemorrhage model was established,and the oxidized regenerated cellulose hemostatic material was applied to the wound.In the control group(n=6),commercially available absorbable hemostatic gauze was used on the wound after establishing liver hemorrhage models.Hemostatic time and blood loss were recorded.The venous blood of the minipig anterior cavity was collected at different time points before and after modeling,and the blood routine and liver and kidney functions were analyzed.Hematoxylin-eosin staining and Masson staining were performed at 2,6,and 14 weeks after modeling.The main organs were observed by histopathology at 14 weeks after modeling.A liver ultrasound examination was performed at different time points after modeling to observe the degradation and absorption of materials. RESULTS AND CONCLUSION:(1)There was no significant difference in intraoperative hemostatic time and blood loss between the experimental group and the control group(P>0.05).(2)The monitoring results of blood biochemical indexes demonstrated that the levels of aspartate transaminase and glutamic pyruvic transaminase in the three groups were higher 24 hours after modeling than before modeling,and the indexes basically recovered to the normal levels 72 hours after modeling.There were no significant differences in blood biochemical indexes such as liver and kidney functions,blood glucose and inflammatory factors among the three groups(P>0.05).(3)Hematoxylin-eosin staining and Masson staining of histopathology revealed that 2 weeks after surgery,granulation tissue formation and a large amount of collagen fiber deposition were observed on the liver wounds of the two groups,and there were obvious fibrous hyperplasia zones and inflammatory cell infiltration,and the wound healed well.14 weeks after modeling,the liver wounds of two groups of minipigs exhibited mild fibrous hyperplasia zone,collagen fiber deposition and a small amount of inflammatory cell infiltration,complete material degradation,and the healed wound.Hematoxylin-eosin staining showed no significant pathological changes in major organs.(4)Ultrasonic examination demonstrated that the materials of both groups were degraded gradually with the extension of implantation time,and most of them were degraded and absorbed by 56 days after molding.(5)The results confirm that the oxidized regenerated cellulose hemostatic material can effectively prevent liver wound hemorrhage in minipigs,and the hemostats are safe and reliable.
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Parasitic infection are an important global public health issue, and parasites can modulate and evade host immune attacks through various ways. In recent years, studies have shown that in the process of parasite infection, transforming growth factor-β (TGF-β)/Smad signaling pathway participates in host T cell immune response, induce T cells to proliferate and differentiate towards regulatory cells (Treg) and helper T cells (Th), regulate Treg/Th17 cell balance, inhibit Th1 cell proliferation and differentiation, and play an important role in the occurrence and development of parasitic diseases and their interactions with the host. This article reviews the research progress of T cell immune responses mediated by TGF-β/Smad signaling pathway in the process of parasite infection.
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Objective To investigate, analyze, and evaluate the risk data associated with the clinical use of absorbable sutures by retrieving and summarizing information from the databases of the US FDA and CNKI, as well as the adverse event reports related to absorbable sutures from January 2019 to October 2022 within Zhejiang province. The adverse event reports are obtained from both incident locations and monitoring organizations affiliated with the registrant. The aim is to identify the main risk factors associated with the clinical use of absorbable sutures. The key risk factors are potential product quality defects, product design and material selection, clinical selection and application, and postoperative recovery care including patient's self-care. Risk control strategies are further proposed to reduce or minimize the risk of adverse events caused by this product.
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Humans , Sutures/adverse effects , Risk Assessment , Risk FactorsABSTRACT
This article reported 2 cases primary renal Ewing sarcoma (PRES)/primitive neuroectodermal tumor (PNET). By reviewing literature, renal PRES/PNET has a high degree of malignancy, and early symptoms are not typical. It needs to be combined with clinical manifestations, imaging examinations and pathological examination results. At present, surgical treatment is the main treatment, combined with radiotherapy and chemotherapy or targeted treatment might help.
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Objective@#The presence of coagulative necrosis (CN) in clear cell renal cell carcinoma (ccRCC) indicates a poor prognosis, while the absence of CN indicates a good prognosis. The purpose of this study was to build and validate a radiomics signature based on preoperative CT imaging data to estimate CN status in ccRCC. @*Materials and Methods@#Altogether, 105 patients with pathologically confirmed ccRCC were retrospectively enrolled in this study and then divided into training (n = 72) and validation (n = 33) sets. Thereafter, 385 radiomics features were extracted from the three-dimensional volumes of interest of each tumor, and 10 traditional features were assessed by two experienced radiologists using triple-phase CT-enhanced images. A multivariate logistic regression algorithm was used to build the radiomics score and traditional predictors in the training set, and their performance was assessed and then tested in the validation set. The radiomics signature to distinguish CN status was then developed by incorporating the radiomics score and the selected traditional predictors. The receiver operating characteristic (ROC) curve was plotted to evaluate the predictive performance. @*Results@#The area under the ROC curve (AUC) of the radiomics score, which consisted of 7 radiomics features, was 0.855 in the training set and 0.885 in the validation set. The AUC of the traditional predictor, which consisted of 2 traditional features, was 0.843 in the training set and 0.858 in the validation set. The radiomics signature showed the best performance with an AUC of 0.942 in the training set, which was then confirmed with an AUC of 0.969 in the validation set. @*Conclusion@#The CT-based radiomics signature that incorporated radiomics and traditional features has the potential to be used as a non-invasive tool for preoperative prediction of CN in ccRCC.
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Objective To observe the efficacy of laparoscopic high ligation of spermatic vein combined with compound xuanju capsule in treating infertility caused by varicocele.Methods Retrospective analysis of 49 cases of infertility caused by varicocele admitted to the Affiliated Hospital Xuzhou Medical University from February 2015 to November 2016,average age was 27.5 years,aged 20-50 years;according to simple random method divided into experimental group (n =20) and control group (n =29).Patients in the experimental group were treated with laparoscopic high ligation of spermatic vein and compound xuanju capsule.Patients in the control group were treated with high ligation of spermatic vein.Semen quality (sperm concentration,forward motor sperm rate,sperm survival rate),peripheral blood sex hormone (follicle stimulating hormone,luteinizing hormone testosterone) were compared between the two groups before and 3 months after surgery.Pregnancy rate of the spouse 1 year after surgery were compared between the two groups.Measurement data were expressed as mean ± standard deviation (Mean ± SD),and t-test was used for comparison between groups;count data were compared by Chisquare test.Results Preoperative sperm concentration [(14.95 ± 2.35) million/ml vs (15.69 ± 3.35) million/ml,P=0.118],forward motor sperm rate [(24.35 ± 3.72)％ vs (25.10 ± 3.89)％,P =0.221],sperm survival rate [(27.90 ± 2.59) ％ vs (26.93 ± 3.20) ％,P =0.122] was not statistically significant between experimental group and control group.3 months after operation,sperm concentration [(23.45 ± 4.39) million/ml vs (20.07 ± 2.91) million/ml,P =0.001],forward motor sperm rate [(34.80 ± 3.56) ％ vs (31.62 ± 3.75) ％,P=0.001],sperm survival rate [(44.55 ± 4.29)％ vs (39.52 ± 4.49)％,P =0.001] was statistically significant between experimental group and control group.Preoperative follicle stimulating hormone [(8.97 ±0.64) IU/L vs (9.17 ± 0.96) IU/L,P =0.238] and luteinizing hormone [(6.75 ± 0.49) IU/L vs (6.64 ±0.37) IU/L,P =0.744],testosterone [(10.87 ± 1.66) nmol/L vs (9.98 ± 1.17) nmol/L,P =0.064] was not statistical significance between experimental group and control group.3 months after operation,Follicle stimulation.[(6.96 ± 0.66) IU/L vs (7.34 ± 0.77) IU/L,P =0.043],luteinizing hormone [(6.04 ± 0.39) IU/L vs (6.15 ± 0.38) IU/L,P =0.038],testosterone [(14.46 ± 1.30) nmol/L vs (12.23 ± 2.23) nmol/L,P =0.001] was statistically significant between experimental group and control group.Pregnancy rate of the spouse 1 year of the experimental group was higher than the control group [65.0％ (13/20) vs 48.3％ (14/29)],but it was not statistically significant between two groups (x2 =1.34,P =0.247).Conclusions Laparoscopic high ligation of spermatic vein combined with compound Xuanju capsule in the treatment of infertility caused by varicocele can significantly improve semen quality and sex hormone levels.From visual data,the natural pregnancy rate is also improved compared with the simple operation group.It is worthy of clinical recommendation.
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Objective@#To observe the efficacy of laparoscopic high ligation of spermatic vein combined with compound xuanju capsule in treating infertility caused by varicocele.@*Methods@#Retrospective analysis of 49 cases of infertility caused by varicocele admitted to the Affiliated Hospital Xuzhou Medical University from February 2015 to November 2016, average age was 27.5 years, aged 20-50 years; according to simple random method divided into experimental group (n=20) and control group (n=29). Patients in the experimental group were treated with laparoscopic high ligation of spermatic vein and compound xuanju capsule. Patients in the control group were treated with high ligation of spermatic vein. Semen quality (sperm concentration, forward motor sperm rate, sperm survival rate), peripheral blood sex hormone (follicle stimulating hormone, luteinizing hormone testosterone) were compared between the two groups before and 3 months after surgery. Pregnancy rate of the spouse 1 year after surgery were compared between the two groups. Measurement data were expressed as mean± standard deviation (Mean±SD), and t-test was used for comparison between groups; count data were compared by Chi-square test.@*Results@#Preoperative sperm concentration [(14.95±2.35) million/ml vs (15.69±3.35) million/ml, P=0.118], forward motor sperm rate [(24.35±3.72)% vs (25.10±3.89)%, P=0.221], sperm survival rate [(27.90±2.59)% vs (26.93±3.20)%, P=0.122]was not statistically significant between experimental group and control group. 3 months after operation, sperm concentration [(23.45±4.39) million/ml vs (20.07±2.91) million/ml, P=0.001], forward motor sperm rate [(34.80±3.56)% vs (31.62±3.75)%, P=0.001], sperm survival rate [(44.55±4.29)% vs (39.52±4.49)%, P=0.001] was statistically significant between experimental group and control group. Preoperative follicle stimulating hormone [(8.97±0.64) IU/L vs (9.17±0.96) IU/L, P=0.238] and luteinizing hormone [(6.75±0.49) IU/L vs (6.64±0.37) IU/L, P=0.744], testosterone [(10.87±1.66) nmol/L vs (9.98±1.17) nmol/L, P=0.064] was not statistical significance between experimental group and control group. 3 months after operation, Follicle stimulation. [(6.96±0.66) IU/L vs (7.34±0.77) IU/L, P=0.043], luteinizing hormone [(6.04±0.39) IU/L vs (6.15±0.38) IU/L, P=0.038], testosterone [(14.46±1.30) nmol/L vs (12.23±2.23) nmol/L, P=0.001] was statistically significant between experimental group and control group. Pregnancy rate of the spouse 1 year of the experimental group was higher than the control group [65.0% (13/20) vs 48.3% (14/29)], but it was not statistically significant between two groups (χ2=1.34, P=0.247).@*Conclusions@#Laparoscopic high ligation of spermatic vein combined with compound Xuanju capsule in the treatment of infertility caused by varicocele can significantly improve semen quality and sex hormone levels. From visual data, the natural pregnancy rate is also improved compared with the simple operation group. It is worthy of clinical recommendation.
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Objective To investigate the total flavones of rhododendra(TFR) on contractility of rat myocardial cells and its possible mechanism. Methods The contraction amplitude and contraction frequency of primary cultured rat myocardial cells were observed by image analysis system. The intracellular free Ca2 + content was measured by calcium ion imaging system. Results 10 and 100 nmol /L hU Ⅱ significantly accelerated the contraction frequency of myocardial cells,and 10 nmol /L hU Ⅱ increased the contraction amplitude of myocardial cells,but 100 nmol /L hU Ⅱ reduced the contraction amplitude of myocardial cells. TFR 300 mg /L significantly slowed the contraction frequency of rat myocardial cells and increased the contraction amplitude. TFR in the range of 33. 3 ～ 300 mg /L could significantly inhibit the increase of contraction frequency,the decrease of contraction amplitude and the increase of intracellular free Ca2 + content induced by 100 nmol /L hU Ⅱ. Conclusion TFR can slow down the contraction frequency of myocardial cells and increase its contractility,which may be related to the decrease of free Ca2 + content in myocardial cells.
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Mantle cell lymphoma (MCL) is an aggressive and rare B-cell lymphoma, accounting for around 6%-8% of non-Hodgkin's lymphoma (NHL). Up to now, there are a lot of studies and reports on the biological behavior, diagnostic criteria and treatments of MCL worldwide. However, due to its high invasiveness, there are still many problems to be solved in terms of prognosis and treatment. This article introduces MCL and its progress in the unsolved clinical problems.
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Objective: To establish an ultra performance liquid chromatography-tandem quadrupole mass spectrometry ( UPLC-MS/MS) method to determine the concentration of carbamazepine and phenobarbital in human plasma, and apply in the clinical moni-toring. Methods:Diazepam was used as the internal standard, and the samples were precipitated by acetonitrile. An ACQUITY UPL-C? BEH C18 (50 mm × 2. 1 mm, 1. 7 μm) column was used as the stationary phase at 40℃ with a Waters XEVO TQD. The mobile phase consisted of acetonitrile (containing 10 mmol·L-1 ammonium formate) and water (containing 10 mmol·L-1 ammonium for-mate and 0. 1% formic acid) with gradient elution pumped at a flow rate of 0. 4 ml·min-1 . ESI was applied and the samples were scanning analyzed by positive ion multi-reaction monitoring mode. The plasma was precipitated by 200 μl acetonitrile and centrifugated at 12 000 × g for 10 min and tranfer it into an Ep tube. The sample size was 20 μl. Results:The retention time of carbamazepine was 1. 23 min. Excellent linear calibration curves of carbamazepine were obtained within the concentration range of 0. 25-25μg·ml-1(r=0. 999 7). The lower limit of quantification of carbamazepine was 0. 01 μg·ml-1. The retention time of phenobarbital was 1. 11 min. Excellent linear calibration curves of carbamazepine were obtained within the concentration range of 0. 5-50 μg·ml-1(r=0. 999 6). The lower limit of quantification of carbamazepine was 0. 05 μg·ml-1. The recovery of three concentrations of carbamazepine was (82. 1 ± 6. 83)%, (82. 91 ± 4. 3)% and (84. 35 ± 3. 09)%, and the recovery of three concentrations of phenobarbital was (84. 27 ± 6. 91)%, (84. 32 ± 7. 74)% and (89. 07 ± 6. 24)%, respectively. The intra- and inter-day RSDs were all less than 10%. There were no endogenous substances existing in the incubation system, therefore, there was no interference with the determination. Conclu-sion:The simple, accurate and rapid method is suitable for the determination of carbamazepine and phenobarbital in human plasma, which can contribute greatly to the therapeutic drug monitoring service for patients.
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Objective To investigate the application efficacy of disposable circumcision stapler with compound lidocaine cream combined with lidocaine injection in the circumcision.Methods From September 2013 to November 2014,120 cases (11 cases of redundant prepuce phimosis patients), were divided into disposable circumcision suture group (S group, 60 cases) and conventional circumcision (T group, 60 eases) ,two groups had no statistically significant difference at patient age and wrapping case (6 cases phimosis of S group,5 cases phimosis of T group) (P ＞0.05.Patient's age ranged from 11 to 49 years.30 patients in each group were treated with lidocaine cream combined with lidocaine injection,and another 30 patients were treated with a local anesthetic lidocaine injection.Comparisons were conducted among the four groups on the operation time, anesthesia, intraoperative and postoperative pain score, blood loss and postoperative complications, postoperative appearance satisfaction, wound healing time.Results For the disposable circumcision stapler with lidocaine cream combined with lidocaine injection group, disposable circumcision stapler with lidocaine injection group, sleeve circumcision with lidocaine cream combined with lidocaine injection group and sleeve circumcision with lidocaine injection group, the operation time was (5.3 ± 1.5) min, (4.9 ± 1.4) min, (31.6 ± 3.4) min, (32.0 ± 3.3) min respectively, blood loss was (0.6 ± 0.4) ml, (0.8 ± 0.5) ml, (6.9 ± 2.4) ml, (7.5 ± 2.1) ml respectively, narcotic pain score was 0.6 ± 0.6,3.2 ±3.9,2.5 ± 1.0,0.5 ±0.6,intraoperative pain score was 0.8 ±0.9,1.4 ±0.8,2.2 ± 1.1,3.1 ± 1.1,postoperative 24 h pain score was 1.6 ±0.9,2.2 ±0.8,2.6 ± 1.3,4.4 ± 1.1, postoperative 48h pain score was 0.7 ±0.6,0.8 ±0.9,2.4 ±0.8,2.8 ±0.7, wound healing time was (13.7 ±1.5)d,(13.5 ± 1.7)d, (14.2 ± 1.3) d, (14.1 ± 1.6) d, the rate of postoperative complications was 6.6％ (2/30), 10.0％ (3/30),26.6％ (8/30), 33.4％ (10/30), satisfaction rate of appearance was 93.4％ (28/30), 96.7％ (29/30),70.4％ (22/30), 80.0％ (24/30).Compared with sleeve circumcision with lidocain injection group,disposable circumcision stapler with lidocaine cream combined with lidocaine injection had a shorter operation time, less pain, less bleeding, higher appearance satisfaction rate and lower incidence of complications (P ＜ 0.05), wound healing time had no significant difference (P ＞ 0.05).Conclusion Application of the disposable circumcision stapler with lidocaine cream combined with lidocaine injection on circumcision is safe and has got better clinical outcomes.
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Objective To explore the possibility of three-dimensional (3D) kidney replications for clinical and teaching of percutaneous nephrolithotomy (PCNL).Methods The CT urography (CTU) DICOM format data from 5 patients with kidney calculi were selected from March 1st to June 1st,2015.Thresholding technique,region growing technique,edit mask technique and multiple slice edit technique were used in sequence by Mimics software.And five 3D replications were printed by Object 500 3D printer.The sizes of the replications were measured and the replications were punctured.Results The 3D replications of the kidneys were successfully designed and printed.The average difference of the long axes between 3D replications and patients' kidneys was 0.283cm,the average difference of the diameters was 0.212cm,and the average difference of the diameter of the stones was 0.244cm.The sizes of the 3D replications were basically consistent with those of patients' kidneys.The simulative puncturing was successful.Conclusions After comparing the 3D replications with their original 2D CT images,the anatomical details are found basically the same.The 3D replications could provide 3D visual observations of organ anatomy for surgeons.
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AIM: To investigate the effects of low-dose paclitaxel on the morphology of bladder after partial bladder outlet obstruction ( BOO) in rats.METHODS:Healthy female Sprague-Dawley rats ( n=30) were randomly di-vided into sham operation group, BOO group and low-dose paclitaxel group.The rats in BOO group and low-dose paclitaxel group received operation to establish an obstruction model, while the rats in sham group underwent sham operation.After operation, the rats in low-dose paclitaxel group received intraperitoneal injection of paclitaxel at a dose of 0.3 mg/kg twice a week for 4 weeks.At the same time, the animals in sham group and BOO group received the same volume of saline by in-traperitoneal injection.Four weeks after operation, each rat was sedated and the bladder was weighted.Histological chan-ges of the bladder were observed by HE staining.Collagen deposition in the bladder tissue was observed by Masson stai-ning, and the fibrosis area was measured.The ultrastructure of the detrusor was studied by transmission electron microsco-py.RESULTS:Compared with sham operation group, a significant increase in bladder weight (0.376 g ±0.052 g vs 0.112 g ±0.014 g, P<0.05), the muscle hypertrophy, and a decrease in the percentage of collagen area [collagen/(col-lagen+muscle), 29.66%±2.69%vs 38.94%±3.67%, P<0.05] was observed in BOO group.Under electron micro-scope, intracellular connection had more gap junction and desmosomes than intermediate junction.The cell gap widened with a large amount of collagen fiber.Compared with BOO group, low-dose paclitaxel group decreased bladder weight (0.215 g ±0.025 g vs 0.376 g ±0.052 g, P<0.05) and improved the muscle hypertrophy.The percentage of the colla-gen area was also decreased (19.94%±1.90% vs 29.66%±2.69%, P<0.05).The detrusor microstructure showed that the intermediate junction was characterized by a predominance among the intracellular connections, and the intercellu-lar space contained less collagen fibers in low-dose paclitaxel group.CONCLUSION:Low-dose paclitaxel may ameliorate the morphological damage of the bladder and recover bladder function in the rats with BOO by slowing down the process of bladder fibrosis.
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ObjectiveTo evaluate the laparoscopic procedure and therapeutic efficacy of retroperitoneal laparoscopic surgery for the treatment of adrenal ganglioneuroma.Methods6 patients [4 male and 2 female,32 to 59 (mean 41.3) years old],underwent retroperitoneal laparoscopic resection of adrenal ganglioneuroma. In this group, 2 patients with left adrenal ganglioneuroma, 4 patients with right adrenal ganglioneuroma. ResultsAll of the 6 cases was successfully performed uneventfully with retroperitoneal laparoscopic adrenalectomy. Pathologic studies confirmed there were 6 cases of adrenal ganglioneuroma. No case was transferred to open operation.The blood pressure remained stable during operation.Mean tumor size was (5.9±2.1) cm (tumor diameter 3.6-11.2 cm) Mean operative time was 120(90-210) min.Mean estimated blood loss was 160 (50-700) ml.Postoperative hospital stay ranged from 7 to 9 days.All the patients were cured without relapse during 4-32 month, follow-up. ConclusionsRetroperitoneal laparoscopic procedures for adrenal ganglioneuroma causes less traumatic;less operative blood loss;distinct image during operation;less postoperative discomfort;faster postoperative recovery and earlier return to daily activities and diet.Retroperitoneal laparoscopic procedure should be considered as the first choice for adrenal ganglioneuroma.
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Objective To study the expression and significance of galanin (GLA) in the prostate carcinoma (PCa).Methods The samples from 50 patients with benign prostatic hyperplasia (BPH) and 50 patients with PCa and 30 PCa patients with bone metastasis were examined by immunohistochemical staining.Results The positive rates of GLA expression in BPH,PCa,and PCa with bone metastasis were 18 ％ (9/50),68 ％ (34/50),and 80 ％ (24/30),respectively,and there were statistically significant differences between PCa patients,PCa patients with bone metastasis and BPH patients (x2 =25.5,29.74,both P ＜ 0.01),but there was no significant difference between PCa patients and PCa patients with bone metastasis (x2 =1.35,P ＞ 0.05).Conclusion GLA has higher expression in prostatic cancer cells,it might be an important indicators for differentiating prostate cancer from benign prostatic hyperplasia and predicting the prognosis of prostate carcinoma.
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Objective To investigate the monocyte chemoattractant protein (MCP1) gene expression of the bladder urothelial carcinoma and its correlation with the pathogenesis of the bladder urothelial carcinoma.Methods Thirty cases of patients with the bladder urothelial carcinoma, including 20 cases of male and 10cases of female, were taken the blood and bladder tissue.In control group, 30 cases of non-cancer patients,including 20 cases of male and 10 cases of female, were taken the blood samples.ELISA method was used to detected the concentration of plasma MCP1, immunohistochemical method to investigate the expression of MCP1 in the bladder urothelial carcinoma and adjacent tissues.Real-time quantitative RT-PCR was applied to detected the expression of MCP1. Data of the two groups were comparied and the relationship between the expression of MCP1 and the clinical characteristics of the bladder urothelial carcinoma was analyzed.Results MCP1 in group of patients with the bladder urothelial carcinoma was (193.4±105.7) pg/ml, and higher than that in non-tumor group (91.8±34.6) pg/ml (t = 8.37, P ＜0.001).MCP1 in invasive bladder cancer was (204.3±167.5) pg/ml and superficial bladder cancer was (130.6±69.2) pg/ml (t = 2.667, P = 0.013). By immunohistochemistry, the MCP-1 positive rate in the bladder urothelial carcinoma was 70.0 % (21/30), that in adjacent cancer tissue was 43.3 % (13/30) (χ2 = 4.9, P ＜0.05). The positive rate of MCP1 in invasive bladder cancer in tumor group was 80.0 % (8/10) and that in superficial bladder cancer was 65.0 %(13/20).At the same time, MCP- 1 positive intensity in the bladder urothelial carcinoma was significantly higher than that in adjacent tissues. The intensity in invasive bladder cancer was higher than that in superficial ones. Total RNA and mRNA levels of MCP-1 in the bladder urothelial carcinoma were statistically differences compared with that in adjacent tissues (χ2 = 10.08, P ＜0.05).Conclusion The upregulation of MCP1 gene expression is likely to play an important role in the incidence and metastasis of the bladder urothelial carcinoma.
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Objective To review the clinical diagnosis and treatment of acute focal renal infarction. Methods Three cases of focal renal infarction were reported and the literature was reviewed.The patients aged from 45 to 63 years with mean age of 54. Two cases had low back pain, 1 case with abdominal pain. Based on clinical history, B-ultrasonography and CT scan, focal renal infarction was diagnosed in 3 patients. There were 2 cases on left kidney and 1 case right. All cases were applied digital subtraction angiography (DSA) and thrombolytic anticoagulant therapy. Results Two cases received DSA and thrombolytic therapy. The other one case received pethidine 50 mg, progesterone 20 mg treatment, the salvia infusion and low molecular heparin 6000 U anticoagulant therapy. All patients had symtoms relieved after 1 d. A week later CT scan, 3 cases of renal infarction were apparently disappeared. Serum creatinine and urea nitrogen were normal. Three patients were followed, mean follow-up time was 1. 5 (0. 5-2) years. Conclusions The diagnosis of acute focal renal infarction mainly depends on B-ultrasound and CT. Early diagnosis and treatment is important for achieving recovery of the compromised renal function. Renal infarction should be suspected in the presence of abdominal pain of sudden onset.
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Objective To investigate the expression of bone morphogenetic protein-7(BMP-7)in the tissue of prostate cancer(PCa). Methods The pathological samples of 87 cases of PCa were collected.The average age was 66(59-78)years,preoperative of t-PSA was 45.7(2.4-138.2)ng/ml.Gleason score:37 cases were≤6,18 cases were 7,32 cases were≥8.Stages:stage I(T1aN0M0)+stageⅡ(T1bN0M0,T1cN0M0,T2N0M0)20 cases;StageⅢ(T3N0M0)20;Stage Ⅳ(T4N0 M0,TxN1 M0,TxN0 M1)47 cases.According to bone scan or positron emission computed tomography-CT test results,patients were divided into PCa without bone metastasis,42 cases and PCa with bone metastasis,45 cases.Thirty cases of BPH were set as controls.BMP-7 in the PCa and BPH were detected by PV immunohistochemical study.Statistical analysis was done between two groups to compare the differential expression of BMP-7 and serum t-PSA in PCa, and BPH tissues.Results BMP-7 expression in the absorbance A value in benign prostatic hyperplasia was 70.55±5.41, in prostate cancer tissue 70.47± 6.18, no significant differences between the 2 groups(P>0.05).BMP-7 expression in the absorbance A value in prostate cancer without bone metastasis was 65.94 ± 1.76, but with bone metastasis 74.80±5.76.There was a significant difference (P<0.05).Gleason score≤6 absorbance A value was 65.96 ± 1.56, Gleason 7 absorbance A value 65.83 ± 2.75,≥8 absorbance A value 78.06±1.39.Compared with Gleason score≥8, BMP-7 expression in the absorbance A value were significantly lower than the latter (P<0.05).Clinical stage grouping of BMP-7 expression in the absorbance A value: Stage Ⅰ + Ⅱ 65.86±1.72, Stage Ⅲ 65.87±1.85, Stage 74.49±5.83.There was a significant difference (P<0.05).In PCa tissues, BMP-7 of the absorbance A value and the serum t-PSA values showed a positive correlation (r=0.77,P,<0.05). Conelusions The expression level of BMP-7 has occurred in the high pathological Gleason score, late clinical stage, particularly in bone metastasis cases.The expression level of BMP-7 and serum t-PSA have a positive correlation.
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BACKGROUND: Dialysis-related amyloid may occur during long-term dialysis for patients with uraemia, of which the main evocator is β_2-microglobulin (β_22M); therefore, how to eliminate 132M from blood is always the focus of research. OBJECTIVE: To observe ability of removal of β_2-microglobulin (β_2M) from serum using two kinds of polyethersulfone (PES) membrane materials with various degrees of sulfonation.METHODS: These materials were incubated in radio-labeled β_2M (~(125)Ⅰ-β_2M) solution and human serum respectively at appointed time at 37 ℃, and then the amounts of ~(125)Ⅰ-β_2M and serumβ_2M adsorbed by materials were measured by radio immunoassay. RESULTS AND CONCLUSION: In the ~(125)Ⅰ-β_2M system, amounts of ~(125)Ⅰ-β_2M adsorbed by the materials decreased in the following sequence PES with high degree of sulfonation > PES with low degree of sulfonation > PES, whatever the source of PES was. In the serum system, amounts of β_2M adsorbed reached maximums at 30 minutes and the final adsorptions decreased in sequence of PES with high degree of sulfonation > PES with low degree of sulfonaUon > PES. Sulfonated PES removed β_2M more than PES did and the adsorption of β_2M increases with the increase in the degree of sulfonation. Its ability to remove significant amount of β_2M may result in less β_2M available for incorporation into amyloid. The use of sulfonated PES membranes may lessen the likelihood of development of dialysis-related amyloidosis, which remains a major source of morbidity for patients treated with long-term hemodialysis.
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The evaluation of the adsorption of methylene blue (MB) in plasma by sulfonated polyethersulfone (SPES) adsorbent column was carried out in this study. The results indicated the adsorption of MB by SPES adsorbent column was more efficient than that by polyethersulfone (PES). In addition, the changes of the concentration of BSA solution passing through adsorbent column along with the time and the biochemical indices of plasma before and after adsorption treatment were also investigated. The results showed that the adsorption amount of BSA by PES adsorbent column was larger than that by SPES, and the biochemical parameters such as total protein, albumin, glucose, triglyceride and total cholesterol in plasma varied slightly before and after passing through the column, which were still within the clinical indices.