Anthropometry ; methods ; Humans ; Sleep Apnea, Obstructive ; diagnosis

Objective To investigate the causes of acute renal failure(ARF)after orthtopic liver transplantation(OLT)in patients of acute liver failure(ALF)and the effects of systemic therapy based on continuous renal replacement(CRRT).Methods Clinical data of 412 patients who underwent liver transplantations between January 2001 and June 2006 were analyzed retrospectively (all the cases were followed up to June 2007).According to UNOS grading scale,54 patients were of acute liver failure(UNOS 1 and 2A).Posttransplant ARF developing in 17 cases underwent a systemic therapy based on CRRT as well as anti-rejection,anti-infection and nutrition support.The perioperative courses,complications,causes of death and follow up results were analyzed.Results There were no severe complications during CRRT.Perioperative mortality was 5.4%and 58.8%in patients without ARF and those with ARF respectively.the rate of complications was 35.1%vs 100%.1 year survival rate Was 89.2% vs 41.2%.3 year survival rate was 81.1% vs 41.2%.Condusions The effect of surgery mainly depends on the function of liver and other vital organs.The ALF recipients suffered from a high perioperative mortality,especially those with posttransplant ARL.The systemic therapy based on CRRT benefits patients with postoperative ARF.

OBJECTIVESTo study perioperative inflammatory response status in patients with acute aortic dissection. To analyze the reason and outcome of the inflammatory activation.

METHODSBetween August 2011 and December 2011, 30 patients (22 male and 8 female, mean aged (43 ± 9) years) had undergone open repairs of aortic dissection or aneurysm with deep hypothermic circulatory arrest. Indications for surgical intervention were type A aortic dissection in 26 patients and aortic aneurysm in 4 patients. In detail, ascending aorta and arch replacement combined with stent elephant trunk were done in 29 patients, arch replacement combined with stent elephant trunk in 1 patient. According to the time from clinical onset of the dissection to operation, acute group (less than 7 days, group A) 20 patients, chronic group (more than 30 days and aortic aneurysm, group C) 10 patients. White blood cell, C-reactive protein and procalcitonin were assayed before and after operation. These valuables were recorded and compared statistically between two groups.

RESULTSThere were no significant differences in age, operation time, and blood transfusion volume (P > 0.05). Preoperative serum level of inflammatory indicators in group A were significant higher than in group C (t > 3, P < 0.05). Postoperative serum peak level of these indicators were significant higher than preoperative level in both groups (t > 4, P < 0.05). There were much more complications occurred on patients in group A (21 cases) than in group C (0 cases). The occurrence of early postoperative complications in group A was much higher than group C (χ(2) = 12.209, P = 0.000). Mechanic ventilation time in group A and group C were (35 ± 58) hours and (18 ± 9) hours respectively. ICU length of stay in two group were (49 ± 61) hours and (33 ± 12) hours, respectively. The patients with mechanic ventilation time more than 24 h, ICU length of stay more than 5 days in group A was more than in group C significantly (χ(2) = 5.161, P = 0.010; χ(2) = 3.657, P = 0.024).

CONCLUSIONSAcute aortic dissection and surgical procedure induce an acute phase inflammatory reaction. The patients with acute aortic dissection involved more serious organic injury and worse outcome following surgery compared with chronic aortic dissection.

Adult ; Aneurysm, Dissecting ; blood ; surgery ; Aortic Aneurysm ; blood ; surgery ; C-Reactive Protein ; metabolism ; Calcitonin ; blood ; Female ; Humans ; Leukocyte Count ; Male ; Middle Aged ; Perioperative Period

OBJECTIVETo explore the feasibility of inducing human umbilical cord mesenchymal stem cells (HuMSCs) to differentiate into Leydig cells through conditioned medium derived from Leydig cells.

METHODSHuMSCs and Leydig cells were obtained by tissue blocks culture attachment and enzymatic digestion respectively. HuMSCs were induced by conditioned medium of Leydig cells as an experiment group while those before induction were cultured as a control group. The expressions of LHR, 3β-HSD and StAR in the induced HuMSCs were determined by RT-PCR after 3, 7 and 10 days of culture; those of CYP11A1, CYP17A1 and 3β-HSD measured by immunofluorescence staining after 2 weeks; and that of 3β-HSD detected by Western blot after 4 weeks.

RESULTSThe experimental group showed positively expressed LHR, 3β-HSD and StAR at 3, 7 and 10 days, CYP11A1, CYP17A1 and 3β-HSD at 2 weeks, and 3β-HSD at 4 weeks, while the control group revealed negative expressions at all the time points.

CONCLUSIONInduced with conditioned culture medium derived from Leydig cells, HuMSCs are likely to differentiate into steroidogenic cells and eventually into Leydig cells.

Cell Differentiation ; Culture Media, Conditioned ; Humans ; Leydig Cells ; cytology ; Male ; Mesenchymal Stromal Cells ; cytology ; Umbilical Cord ; cytology

ObjectiveTo compare orthotopic liver transplantation (OLT)and combined liverkidney transplantation (CLKT) in the treatment of severe hepatitis B.MethodsIn this study 52 patients of severe hepatitis B were allocated to OLT (40 cases) or CLKT( 12 cases) at our department from Jan.2001 to Sep.2005.The perioperative complications and the result of follow-up were analyzed.ResultsThe preoperative renal functions in CLKT cases were severer than that in OLT cases.Postoperative severe infection was more common in CLKT cases than that in OLT cases.In OLT group 28 patients (70％)suffered from early posttransplant renal dysfunction,among them 11 patients needed dialysis,whilst there were 2 (16.7％ ) patients who needed dialysis in CLKT group (P ＜0.01 ).The posttransplant mortality in OLT group was 40％ ( n =16),significantly higher than that in CLKT ( 16.7％,n =2) ( P ＜ 0.01 ).In OLT group,9 cases developed severe renal failure and died.No one died of renal failure in CLKT group.ConclusionsThe prognosis is more favorable to perform CLKT in patients who suffered from severe hepatitis B with chronic renal dysfunction before transplantation.

ObjectiveTo evaluate the clinical efficiency and safety of cefmetazon in the prevention Department of General Surgery,First People's Hospital,Shanghai Jiaotong University,Shanghai 200080,Chinaand or treatment of infections in general surgery. MethodsA multicenter,prospective and open-labeled trial was conducted. In the prevention group,1700 patients were enrolled in clean-infection surgery,cefmetazon was given 1 g iv half an hour before the surgery started,and 1 g iv twice daily after the surgery for 3 days.Clinical response was evaluated in terms of both cure ( disappearance of pre treatment symptoms)and pathogen. In the treatment group,897 patients were diagnosed as peritonitis, cholecystitis and cholangitis,the patients were given cefmetazon 2 g iv twice a day for 7 - 14 days,clinical response and microbiological efficacy were assessed.ResultsIn prophylactic group,1449 patients were finally included.The clinical efficacy was 100％ (1449/1449).In the treatment group,a total of 897 patients were enrolled,and 110 patients failed for assessment of clinical efficacy,787 patients were included in the PPS population,the clinical efficacy was 90.7％ (714/787); Bacterial eradication rate was 92％ (46/50).Adverse reaction rates in prevention group and treatment group were 1.3％ (22/1700) and 1.2％ (11/897),including mild nausea and vomitting.ConclusionsCefmetazon is effective and safe in prevention and treatment of Postoperative infections in general surgery.

This study was purposed to investigate the inhibition of hTERT antisense oligodeoxynucleotide (ASODN) on the proliferation and telomerase activity in HL-60 cells and to explore the relativity between the telomerase activity and the expression of hTERT gene in HL-60 cells. After treated by hTERT ASODN the expression of hTERT was detected by RT-PCR, the morphological changes of HL-60 cells was observed with inverted microscopy, the cell proliferation was measured by MTT method, and the telomerase activity was determined with TRAP-ELISA and TRAP-PAGE. The results showed that after sealing hTERT gene with ASODN for 72 hours, the expression of hTERT gene was significantly inhibited, the cell growth was repressed and the ability of proliferation decreased, and the effect was specific in sequence and dependent in dose and time. OD(450-690) values were 2.648 +/- 0.42, 1.504 +/- 0.47, 1.223 +/- 0.39, 0.944 +/- 0.16 respectively, as the cells were treated with 0, 10, 20, 30 micromol/L ASODN for 72 hours. The difference was significant as compared 10, 20, 30 micromol/L groups with 0 micromol/L ASODN group respectively (P < 0.05), but the difference was no significant when compared 20 micromol/L SODN group (2.376 +/- 0.65) with untreated group (2.648 +/- 0.42) (P > 0.05). TRAP-PAGE detection revealed that comparing ASODN groups with SODN groups the telomerase image bands were decreased and least was found in groups of 30 +/- mol/L. It is concluded that the hTERT ASODN may inhibit the proliferation and down-regulate the telomerase activity in HL-60 cells by sealing the expression of hTERT gene.
Cell Proliferation ; drug effects ; HL-60 Cells ; Humans ; Oligonucleotides, Antisense ; biosynthesis ; genetics ; Telomerase ; biosynthesis ; genetics ; metabolism ; pharmacology ; Transfection

OBJECTIVETo investigate the effect of rat Schwann cell secretion on the proliferation and differentiation of human embryonic neural stem cells (NSCs).

METHODSThe samples were divided into three groups. In Group One, NSCs were cultured in DMED/F12 in which Schwann cells had grown for one day. In Group Two, NSCs and Schwann cells were co-cultured. In Group Three, NSCs were cultured in DMEM/F12. The morphology of NSCs was checked and beta-tubulin, GalC, hoechst 33342 and GFAP labellings were detected.

RESULTSIn Group One, all neural spheres were attached to the bottom and differentiated. The majority of them were beta-tubulin positive while a few of cells were GFAP or GalC positive. In Group Two, neural spheres remained undifferentiated and their proliferation was inhibited in places where Schwann cells were robust. In places where there were few Schwann cells, NSCs performed in a similar manner as in Group One. In Group Three, the cell growth state deteriorated day after day. On the 7th day, most NSCs died.

CONCLUSIONThe secretion of rat Schwann cells has a growth supportive and differentiation-inducing effect on human NSCs.

Animals ; Brain ; cytology ; embryology ; Cell Differentiation ; drug effects ; Cell Division ; drug effects ; Coculture Techniques ; Humans ; Rats ; Rats, Sprague-Dawley ; Schwann Cells ; secretion ; Sciatic Nerve ; cytology ; Stem Cells ; cytology

OBJECTIVETo investigate the effect of different fresh gas flows (FGFs) on the pharmacodynamics of isoflurane during anesthesia induction.

METHODSSixty female ASA class I or II patients (aged from 18 to 49 years) scheduled for gynecologic laparoscopic surgery were randomly divided into groups I, II, and III (n=20). The FGFs for group I, II, and III was 1, 2 and 3 L/min, respectively, and each group was further divided into two equal subgroups according to the setting concentrations of isoflurane vaporizer (Co), which was 1% in groups I1, II1, and III1 and 2% in groups I2, II2, and III2. Isoflurane at different setting concentration was administered under different FGF in the patients after tracheal intubation following anesthesia induction. The systolic blood pressure (SBP), diastolic blood pressure (DBP), main arterial blood pressure (MAP), heart rate (HR) and bispectral index (BIS) were recorded before anesthesia induction and every 3 min after tracheal intubation. Patients given ephedrine and atropine were also recorded. The patients' consciousness during anesthesia were followed up and recorded. The inspiratory concentration (CIiso) and expiratory concentration (CEiso) of isoflurane in the airway were monitored and recorded every 3 min. The observation after intubation lasted for 18 min, during which stimulation of the patients was avoided, and the operation began after the observation.

RESULTSThere was a close correlation between BIS and CIiso and between BIS and CEiso (r=-0.904 and -0.893, respectively). The incidence of hypotension was significantly different between groups III and I (P<0.01), and between the subgroups in groups II and I (P<0.05). No bradycardia occurred and no consciousness reported awareness during anesthesia.

CONCLUSIONSBetween the completion of tracheal intubation and beginning of the surgery, 1% or 2% Co under a moderate FGF (1-3 L/min) may guarantee the patients' unconsciousness, but hypotension is less likely under a relatively low flow (1-2 L/min) than a higher flow (3 L/min). Higher FGF and Co result in faster induction of deep anesthesia and higher incidence of hypotension.

Adolescent ; Adult ; Anesthesia, Inhalation ; Anesthetics, Inhalation ; pharmacokinetics ; Female ; Humans ; Isoflurane ; pharmacokinetics ; Middle Aged ; Monitoring, Intraoperative ; methods ; Oxygen ; administration & dosage

This study is to assess the efficacy of BPCBG on the decorporation of uranium (VI) and protecting human renal proximal tubular epithelial cells (HK-2) against uranium-induced damage. BPCBG at different doses was injected intramuscularly to male SD rats immediately after a single intraperitoneal injection of UO2(CH3COO)2. Twenty-four hours later uranium contents in urine, kidneys and femurs were measured by ICP-MS. After HK-2 cells were exposed to UO2(CH3COO)2 immediately or for 24 h followed by BPCBG treatment at different doses for another 24 or 48 h, the uranium contents in HK-2 cells were measured by ICP-MS, the cell survival was assayed by cell counting kit-8 assay, formation of micronuclei was determined by the cytokinesis-block (CB) micronucleus assay and the production of intracellular reactive oxygen species (ROS) was detected by 2',7'-dichlorofluorescin diacetate (DCFH-DA) oxidation. DTPA-CaNa3 was used as control. It was found that BPCBG at dosages of 60, 120, and 600 micromol kg(-1) resulted in 37%-61% increase in 24 h-urinary uranium excretion, and significantly decreased the amount of uranium retention in kidney and bone to 41%-31% and 86%-42% of uranium-treated group, respectively. After HK-2 cells that had been pre-treated with UO2(CH3COO)2 for 24 h were treated with the chelators for another 24 h, 55%-60% of the intracellular uranium was removed by 10-250 micromol L(-1) of BPCBG. Treatment of uranium-treated HK-2 cells with BPCBG significantly enhanced the cell survival, decreased the formation of micronuclei and inhibited the production of intracellular ROS. Although DTPA-CaNa3 markedly reduced the uranium retention in kidney of rats and HK-2 cells, its efficacy of uranium removal from body was significantly lower than that of BPCBG and it could not protect uranium-induced cell damage. It can be concluded that BPCBG effectively decorporated the uranium from UO2(CH3COO)2-treated rats and HK-2 cells, which was better than DTPA-CaNa3. It could also scavenge the uranium-induced intracellular ROS and protect against the uranium-induced cell damage. BPCBG is worth further investigation.
Animals ; Cell Line ; Cell Survival ; drug effects ; Chelating Agents ; administration & dosage ; chemistry ; pharmacology ; Dose-Response Relationship, Drug ; Epithelial Cells ; cytology ; metabolism ; Humans ; Kidney ; metabolism ; Kidney Tubules, Proximal ; cytology ; Male ; Micronucleus Tests ; Molecular Structure ; Organometallic Compounds ; toxicity ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Reactive Oxygen Species ; metabolism ; Uranium ; metabolism ; urine