Objective To evaluate the methods and efficacy of retroperitoneal laparoscopic nephron-sparing surgery for the treatment of renal tumor. Methods A total of 6 patients with renal tumors underwent retroperitoueal laparoscopie nephron-sparing surgery during warm ischacmia. Among the 6 eases, 2 had malignant tumor with the diameter of 2.5 cm and 2.2 cm,and 4 had renal angiomyolipoma with the diameter from 2.5 cm to 3.5 cm.The renal yes,Is were secured by a self-made equipment. Tumors were excised with a cold Endo-shear. Parenehymal edges were approximated using a absorbable hemostatic gauze. Results All procedures were successfully completed without open conversion. Mean surgical time was 150 minutes (range 120-210 minutes). Mean ischaemia time was 22 minutes (range 18-33 minutes) and the mean blood loss was 170 ml (range 150-200 ml). Surgical margins were negative in all patients.During a follow-up for 6-12 months, no patient had local or port site recurrence. Conclusions Betroperitoneal laparoscopic nephron-sparing surgery for renal tumor by using serf-made equipment is safe and effective. This procedure has the advantages of minimal invasion, less blood loss, good vision, and rapid convalescence and so on.

Objectives To explore the calcium signaling mechanism of STIM1 in breast cancer cells. Meth-ods After SiRNA interruption, Western blot and Transwell were used to measure protein expression of STIM1 and cell migration in MDA-MB-231 cells respectively. The relationship between STIM1 and SOCE calcium signaling were analysed by Laser confocal microscopy. Western blots were used to measure protein expression of FAK after si-lence STIM1. Results The numbers of cells without STIM1 were significantly lower than those cells with STIM1 by Transwell assay. STIM1 mediated SOCE in MDA-MB-231. Blocking SOCE might inhibite cells migration. Si-lence STIM1 did not affect the expression or activation of FAK in MDA-MB-231 cells. Conclusion STIM1 influ-ences cell migration through SOCE pathway in breast cancer cells, which is independent on the expression or activa-tion of FAK.

AIM To study anti CMV effect of S ODNs complementary to the initial code region of major immediate early (MIE) mRNA, and to the intron1/exon2 boundary of MIE mRNA precursor. METHODS To evaluate the anti CMV effect by determining viral antigen on infected 2BS cells by in situ ELISA. RESULTS Both of 2 AS S ODNs and their sense sequence control showed anti CMV effect. The medium effective concentration (EC 50 ) were 4 53, 10 2, 26 2 and 30 1 ?mol?L -1 . The secretion of CMV antigens were delayed by 3 d～4 d by 8 0 ?mol?L -1 AS 1. It showed increased effect by administrating earlier postinfection, by supplementing the S ODN at intervals, by conbinating with ganciclovir, and by packaging with liposome. A slight cytotoxicity was observed at the concentration of 64 0 ?mol?L -1 . Northern blot analysis indicated that the MIE mRNA decreased after the treatment of AS 1. It suggests that disintegration of the mRNA in the hybridized duplex by activated RNase H played an important role as the mechanism of specific action, and "time and effect" analysis suggested that interference of viral adsorbtion and penetration may be the important mechanism of nonspecificity. CONCLUSION AS S ODNs targeted to MIE gene are effective anti CMV agents which can be developed as a new type of chemotherapy drugs against CMV infection.

Purpose:To improve the understanding of obstructive anuria of upper urinary tract(OAUUT) and upgrade the diagnosis and treatment level.Methods:Causes and treatments of 45 cases OAUUT were reviewed.Results:34 cases obtained normal renal function and 9 cases with azotemia after three months of operation.Conclusions:The main risk factors of OAUUT is urolithiasis (Stone disease) accounting for 77.8%. Ureter catheterization,double-J tube insertion under cystoscope and operation should be the main measures to relieve obstruction.

Adult ; Aged ; Case-Control Studies ; Female ; Gene Frequency ; Genotype ; Hepatitis, Autoimmune ; genetics ; Humans ; Liver Cirrhosis, Biliary ; genetics ; Male ; Middle Aged ; Polymorphism, Genetic ; fas Receptor ; genetics

Objective To investigate the photodynamic antitumor activity and chemical characteristics of pheophorbide A (PPBa)in vitro. Methods Breast cancer cells (MCF-7), lung cancer cells (A549), cervical cancer cells (HeLa), and three kinds of hepatoma cells (HepG2, hep3B and sk-Hep1) were planted in 96-well plates.The effects of light and dark toxicity, light intensity, and drug concentration on the phototoxicity of PPBa were investigated by MTT, and the uptake of PPBa was observed by Hoechst staining under a confocal microscope.The production of singlet oxygen was observed by flow cytometry and confocal microscopy with the reactive oxygen species detection kit.The photobleaching of PPBa was investigated by measuring the absorbance by a microplate reader according to the luminescence characteristics of PPBa. Results PPBa showed strong phototoxicity and low dark toxicity to six kinds of cancer cells, and IC₅₀ values to cancer cells were as follows: MCF-7:1.033 μmol/L, A549:1.911 μmol/L, HeLa: 2.319 μmol/L, HepG2:2.015 μmol/L, Hep3B: 2.089 μmol/L, sk-Hep1:2.467 μmol/L.The main uptake site of PPBa was the cytoplasm.The production of singlet oxygen was strongly dependent on the administration concentration, and photobleaching was very low. Conclusion For the six kinds of cancer cells, PPBa has the highest phototoxicity to breast cancer cells (MCF-7), with excellent properties and ideal photosensitizer characteristics.

Purpose:To further improve the therapeutic results of ESWL and to reduce the complications of ESWL. Methods: Clinical materials of 5 140 cases of patients with urinary calculi underwent ESWL from 1989 to 1999 were analyzed retrospectively. Results: Ignorance of the routine examination in urine, blood, hepatic func tion and specialization etc, the serious complications may be produced by ESWL. Low energy and emergency ESWL have obtained satisfactory results. Conclusions:Every routine examination is essential to secure the patient to get satisfactory therapeutic result from ESWL and prevent the complication from occurring. Complete dis charge rate of stones was affected by the tissue structure and type of the renal pelvis and calyces, beside the site of stones.

OBJECTIVETo investigate the variation of bone marrow complement level in cytopenia patients with positive BMMNC-Coombs test (CBCPC), and probe the role of complement in destroying hematopoietic cells of CBCPC patients.

METHODSOne hundred and twenty-four patients with CBCPC and twenty-three healthy donors as controls were enrolled in this study. The levels of CH50, C3, C4, C5b-9 were tested with ELISA. The auto-antibodies on bone marrow hematopoietic cells (BMHC) were examined with flow cytometry.

RESULTSThe level of C5b-9 in bone marrow (BM) of untreated CBCPC patients [(119.8+/-54.0) microg/L] was significantly higher than that of recovered patients [(100.7+/-33.4) microg/L] or normal controls [(93.9+/-28.8) microg/L] (P<0.05). The levels of CH50 in BM of untreated or recovered CBCPC patients [(33.3+/-11.5) kU/L, (30.8+/-10.3) kU/L] were significantly higher than that of normal controls [(24.1+/-6.4) kU/L] (P<0.05). The level of C3 in BM of untreated or recovered CBCPC patients [(4.9+/-2.2) mg/L], (5.0+/-3.5) mg/L] was significantly lower than that of normal controls [(7.0+/-5.6) mg/L] (P<0.05). The level of complement in peripheral blood was consistent with that in BM. CH50 in BM of CBCPC patients was negatively correlated with their C3 (r=-0.303, P=.0007) and positively correlated with their C5b-9 (r=0.241, P=0.003) levels. The level of C5b-9 in BM of CBCPC patients was higher in the BMHC-IgM positive group [(117.6+/-55.7) microg/L] than in the BMHC- IgM negative group [(99.2+/-26.2) microg/L] (P<0.05). The positive rate of CD34(+)-IgG or CD34(+)-IgM of CBCPC patients was positively correlated with their C5b-9 level (r=0.593, P=0.000, r=0.326, P=0.049). The reticulocyte percentage (r=0.421, P=0.000) and serum indirect bilirubin level (r=0.230, P=0.032) of CBCPC patients were positively correlated with their CH50 level.

CONCLUSIONSThe hematocytopenia of CBCPC patients might be related to the hematopoietic cells destruction caused by auto-antibody activated complements.

Adolescent ; Adult ; Aged ; Bone Marrow Cells ; immunology ; Case-Control Studies ; Child ; Complement System Proteins ; metabolism ; Coombs Test ; Female ; Humans ; Male ; Middle Aged ; Pancytopenia ; immunology ; metabolism ; Young Adult

Objective Objective To evaluate the effects of a new type of tibial nerve microstimulator on the micturition reflex in cats.Methods From March to May in 2017,the implantable wireless driver micro-stimulator was implanted around the tibial nerve in 9 α-chloralose anesthetized domestic shorthairs cats (2.5-3.5 kg,6-12 months old).The stimulator was placed near the neurovascular bundle parallel to the tibial nerve and its cathode perpendicular to the cushion.The intensity which can induce toe movement was defined as threshold (T).The ureters were isolated via an abdominal incision.The ureters were cut and drained externally.The bladder was inserted via a double lumen catheter through the urethra.The catheter was then secured by a ligature around the urethra.One lumen of the catheter was used to infuse the bladder with either 0.9％ normal saline (NS) or 0.25％ AA at a rate of 1 to 2 ml/min after connecting to a pump.The other lumen was connected to a pressure transducer to measure the bladder pressure.The bladder capacity was used to test the inhibitory effect of the stimulator.After the appearance of the first large-amplitude (＞ 30 cmH2O) bladder contraction,the bladder infusion was stopped.First,after emptying the bladder,2 or 3 cystometrograms with NS were performed without stimulation to obtain the control bladder capacity.After the bladder was stabilized,TNS (6 Hz,1-2 T) was applied during 2 sequential cystometrograms.Second,after emptying the bladder,0.25 ％ AA was infused into the bladder to irritate and induce bladder overactivity.After the bladder stabilized,TNS (6 Hz,1-2 T) was applied again during 2-3 sequential cystometrograms.If bladder capacity increased significantly,the stimulationhad an inhibitory effect on the micturition reflex.Results During normal saline infusion,the bladder baseline was (17.03 ± 4.10) ml.TNS at 1T did not change the bladder capacity [(18.56 ±0.81)ml] (P ＞0.05).TNS at 2T significantly increased the bladder capacity [(25.05 ± 1.19) ml] (P ＜ 0.05).Compared to normal saline infusion,bladder overactivity was irritated by the intravesical infusion of 0.25％ acetic acid,which significantly reduced the bladder capacity [(9.34 ± 0.75) ml] (P ＜ 0.05).Compared to acetic acid infusion,TNS at 1T did not change the bladder capacity [(11.32 ± 0.82) ml] (P ＞ 0.05).TNS at 2T significantly increased the bladder capacity [(14.82 ± 1.15) ml] (P ＜ 0.05).Conclusions The implantable wireless driver tibial nerve micro-stimulator appears to be effective in inhibiting the micturition reflex during physiologic and pathologic conditions.The implantable wireless driver tibial nerve microstimulator was excepted to be used to treat overactive bladder (OAB).

AIM: JS-38 (mitothiolore), a synthetic version of a metabolite isolated from Xenorhabdus sp., was evaluated for its anti-tumor and white blood cell (WBC) elevating activities. METHOD: These anti-proliferative activities were assessed in vitro using a panel of ten cell lines. The anti-tumor activities were tested in vivo using B16 allograft mouse models and xenograft models of A549 human lung carcinoma and QGY human hepatoma in nude mice. The anti-tumor interactions of JS-38 and cyclophosphamide (CTX) or 5-fluorouracil (5-Fu) were studied in a S180 sarcoma model in ICR mice. Specific stimulatory effects were determined on peripheral neutrophils in normal and CTX- and 5-Fu-induced neutropenic mice. RESULTS: The IC50 values ranged from 0.1 to 2.0 μmol·L(-1). JS-38 (1 μmol·L(-1)) caused an increase in A549 tumor cell apoptosis. Multi-daily gavage of JS-38 (15, 30, and 60 mg·kg(-1)·d(-1)) inhibited in vivo tumor progression without a significant effect on body weight. JS-38 additively enhanced the in vivo anti-tumor effects of CTX or 5-Fu. JS-38 increased peripheral neutrophil counts and neutrophil rates in normal BALB/c mice almost as effectively as granulocyte colony-stimulating factor (G-CSF). In mice with neutropenia induced by CTX or 5-Fu, JS-38 rapidly restored neutrophil counts. CONCLUSION These results suggest that JS-38 has anti-tumor activity, and also has the ability to increase peripheral blood neutrophils.
Animals ; Antineoplastic Agents ; administration & dosage ; metabolism ; Cell Count ; Female ; Humans ; Hydrocarbons, Fluorinated ; administration & dosage ; metabolism ; Lung Neoplasms ; drug therapy ; physiopathology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred ICR ; Neutrophils ; cytology ; drug effects ; Xenorhabdus ; chemistry ; metabolism