Hemoperfusion ; Humans ; Metabolic Clearance Rate ; Paraquat ; blood ; pharmacokinetics

Histocytological Preparation Techniques ; methods ; Microtomy ; methods ; Tissue Embedding

Objective To investigate the effects of arginine combined with leptin in treatment of rats with a-cute pancreatitis. Methods Sixty Wister rats were randomly divided into sham operation group (group A), acute pancreatitis group (group B),arginine group (group C),leptin group (group D),arginine plus leptin group (group E),with 12 rats in each group. Acute panereatitis model was developed by retrograde injection of 5% sodium tauro-cholate into cholangiopancreatography in rats. After 6 hours, medicine were given by intraperitoneal injection, ab-dominal aortic blood and pancreatic specimens were taken for measurement of tumor necrosis factor-α(TNF-α), ser-um amylase,nuclear factor-κB (NF-κB) activity of pancreatic tissue, and pathological damage score of pancreatic tissue. Results TNF-α,Amylase,NF-κB activity, pathologic scores were(1.206±0.446)μg/L, (1617.2±18.8) U/L,0.174±0.013,0.6±0. 2 in group A;(3.201±0.321) μg/L, (4643.8±303.4) U/L,0.397±0. 025,7.8±1.3 in group B;(1.845±0.404) μg/L,(3370.9±173.2)U/L,0.255±0.026,3.9±1.1 in group C;(1.996±0.374) μg/L, (3693.7±208.0)U/L,0.274±0.062,4.2±1.2 in group D;(1.440±0.287)μg/L, (2501.0±771.4)U/L,0.211±0.027,2.3±1.0 in group E. Compared with group A, the indicators were significantly in-creased in group B (P < 0.05). Compared with group B, these indicators were reduced in group C and D (P <0.05). There was no significant difference between group C and group D. These indicators in group E were signifi-cantly lower than those in group C and D (P < 0.05). NF-κB in pancreatic tissue were positively correlated with other indicators(P <0.01). Conclusions In treatment of acme pancreatitis in rats, arginine combined with leptin has idenditfied effect, and the effect of combination therapy is better than that of separate medicine.

OBJECTIVETo observe the effect of natural borneol on the permeability of blood tumor barrier (BTB) model and the expression and activation of mitogen-activated protein kinase (MAPKs) signal transduction pathway related protein kinase in vitro.

METHODSC6 rat glioma cells and human umbilical vein endothelial cells (HUVECs) were co-cultured to establish BTB model. Then 4 groups were set up, the blank control group, low, middle, and high dose borneol groups (25, 50, 100 µg/mL), 3 samples collected at 7 time points (0, 10, 30, 60, 120, 180, 240 min, respectively). Blank culture medium was exchanged in the blank control group while medication. Different doses of natural borneol were administered to the 3 borneol groups. Cells were collected at different time points. BTB permeability was determined using horseradish peroxidase (HRP). Expression levels of extracellular signal regulated protein kinase (ERK), phosphorylation extracellular signal regulated protein kinase (P-ERK), P38MAPK, phosphor-P38MAPK, c-Jun N-terminal kinase (JNK), and phosphorylation c-Jun N-terminal kinase (P-JNK) were detected using Western blot.

RESULTSCompared with the same group at min 0, the permeation rate obviously increased (P < 0.01) in the 3 borneol groups at the rest time points. P-ERK expression was elevated first, reached the peak at 30 min, and gradually recovered to the initial level (P > 0.05). Compared with the blank control group, HRP permeation rate increased from 10 min to 240 min (P < 0.01), and expression of P-ERK protein increased at 30 min and 60 min (P < 0.05) in the low dose borneol group; expression of P-JNK protein decreased in the 3 borneol groups at 180 min and 240 min (P < 0.05). Compared with the low dose borneol group, expression of P-ERK protein increased from 10 min to 180 min (P < 0.05), HRP permeation rate increased from 30 min to 180 min (P < 0.05), expression of P-JNK protein decreased at 180 and 240 min (P < 0.05) in the middle dose borneol group. Compared with the middle dose borneol group, HRP permeation rate increased from 10 min to 180 min (P < 0.05), expression of P-ERK protein increased from 10 min to 180 min (P < 0.05), expression of P-JNK protein increased at 180 min and decreased at 240 min (both P < 0.05) in the high dose borneol group.

CONCLUSIONNatural borneol arrived at the effect of regulating reversible BTB patency possibly through activating phosphorylation of ERK in MAPKs signal transduction pathway, and further reversibly down-regulating expression of associated proteins.

Animals ; Bornanes ; pharmacology ; Cell Line, Tumor ; drug effects ; Coculture Techniques ; Extracellular Signal-Regulated MAP Kinases ; metabolism ; Glioma ; pathology ; Human Umbilical Vein Endothelial Cells ; Humans ; JNK Mitogen-Activated Protein Kinases ; metabolism ; Neoplasms ; pathology ; Permeability ; Phosphorylation ; Rats ; Signal Transduction ; drug effects ; p38 Mitogen-Activated Protein Kinases ; metabolism

Objective To establish the reference databases for bone mineral density(BMD)in multiple skeletal regions,which would be useful for diagnosis of osteoporosis(OP)and prediction of fracture risk in adult women in Qingdao.Methods BMD was measured by dual-energy X-ray absorptiometry at skeletal regions of lumbar spine,left hip(femoral neck,Ward's triangle and greater trochanter)in 868 healthy adult women aged 25- 83 years and 191 women with fractures.BMD of skeletal regions with age-related change was found to fit in 8 kinds of regression models.Best model equations of fitting were found and the reference database was established.BMD of women with fractures was compared with the reference databases to predict the risk of fracture.Results BMD in 6 skeletal regions changed with aging and a cubic regression model was better fitted with aged-related change as compared with other regression models.The coefficients of determination(R~2)of fitting curve were 0.21?0.09 (P＜0.01).The BMD reference databases of women in Qingdao were established by cubic regression equation, the peak BMD of lumbar spine and hip appeared at 25-29,and 40-44 years old groups respectively.Finally,the BMD in fracture group was significantly decreased by 1.6-2.5 s as compared with the peak BMD of health women. Conclusion The bone quantity is lost rapidly after 45 years old in women.If the BMD in women after 50 years old is decreased by 1.6-2.5 s compared with the peak BMD in the same area,the risk of fracture is increased.

Objective To evaluate the effects of ulinastatin on hemorrhagic shock and resuscitation ( HS∕R)?induced acute lung injury in rats. Methods Fifteen SPF adult Sprague?Dawley rats, aged 2-3 months, weighing 300-400 g, were divided into 3 groups ( n=5 each) using a random number table:sham operation group ( group S ) , HS∕R group and ulinastatin group ( group U ) . Carotid arteries were cannulated for blood pressure monitoring and blood?letting. HS∕R was induced by blood?letting and maintained for 1 h, followed by resuscitation with autologous blood transfusion and infusion of normal saline. After cannulation of carotid arteries ( T0 ) , at 5 min after hemorrhagic shock ( T1 ) , before resuscitation ( T2 ) , at 5 min after the expected blood pressure was achieved following resuscitation ( T3 ) , and at 30 min, 1?5 h and 2?5 h after resuscitation ( T4?6 ) , arterial blood samples were collected for determination of interleukin?6 ( IL?6 ) and tumor necrosis factor?α ( TNF?α) concentrations ( by enzyme?linked immunosorbent assay) . Arterial blood samples were collected at T0 , T2 and T6 for blood gas analysis. The pH value, partial pressure of arterial carbon dioxide ( PaCO2 ) , HCO-3 and base excess ( BE) value were recorded, and oxygenation index ( PaO2∕FiO2 ) was calculated. Lungs were removed at T6 , and pulmonary specimens were obtained for examination of pathological changes which were scored, and nucleus was extracted for determination of nuclear factor?kappa B ( NF?κB ) p65 expression by enzyme?linked immunosorbent assay. Results Compared with group S, the pH values, HCO-3 , BE values and OI were significantly decreased, and PaCO2 , plasma IL?6 and TNF?α concentrations, expression of NF?κB p65 in lung tissues, and pathological scores were increased in U and HS∕R groups. Compared with group HS∕R, the plasma concentrations of IL?6 and TNF?α, expression of NF?κB p65 in lung tissues, and pathological scores were significantly decreased, and no significant changes were found in parameters of blood gas analysis in group U. Conclusion Although ulinastatin can alleviate HS∕R?induced acute lung injury, it is insufficient to improve lung oxygenation in rats.

A new benzene derivative microintegerrin C (1) and a new norsesquiterpenoid microintegerrin D (2), along with six known compounds (3-8), were isolated and identified from stems and leaves of Micromelum integerrimum by various chromatographies such as silica gel, Sephadex LH-20, RP-18 column chromatography and HPLC. Their structures were mainly identified based on the spectral data analysis such as 1D-, 2D-NMR and HR-EI-MS. All known compounds were isolated from this plant for the first time.
Chromatography, High Pressure Liquid ; Plant Leaves ; chemistry ; Plant Stems ; chemistry ; Rutaceae ; chemistry ; Sesquiterpenes ; isolation & purification

Objective To observe the levels of Foxp3+ CD+ CD25+ regulatory T cells in the peripheral blood of condyloma acuminatum (CA) patients and investigate their roles in the pathogenesis of CA. Methods The peripheral blood was collected from 30 CA patients (including 15 with relapsing and 15 with first onset) and 20 healthy controls. Peripheral blood mononuclear ceils (PBMC) were isolated and stained with anti-human CD4-PE-Cy5 and anti-human CD25-fluorescein isothiocyanate (FITC) monoclonal antibodies on cell membrane, followed by intraeellular staining with anti-human Foxp3-PE. The percentage of Foxp3+ CD4+-CD25+ regulatory T cells was detected by three-color flow cytometry. Comparison between groups was done by ANOVA test. Results The percentages of Foxp3+ CD4+ CD25+ regulatory T cells among total CD4 + T cells in CA patients and relapsing CA group were (3.4 ± 1.0) % and (4.7 ±+ 1.2) %, respectively, which were both significantly higher than that in healthy control group [(1.2±0. 5)%, P<0.01]. Furthermore, that in first onset CA group was (2. 1 ± 1.0) %, which was higher than that in healthy control group, but without statistical significance; but that in relapsing CA group was significantly higher than that in first onset group (P<0.05). Conclusions The number of Foxp3+ CD4+ CD25+ regulatory T cells increases in the peripheral blood of CA patients. The disorder of cellular immunity may be involved in the immunopathogenesis of CA.

BACKGROUND: The treatment of multilevel cervical spondylotic myelopathy (MCSM) aims at sustaining the spinal cord compression and restoring the stability of the cervical vertebrae at most.OBJECTIVE: To analyze the clinical characters of anterior cervical discectomy with fusion and expansive open-door laminoplasty for MCSM.METHODS: Sixty-seven patients with MCSM were divided into two groups, and treated with anterior cervical discectomy with fusion (group A) or posterior cervical expansive open-door laminoplasty (group B). All the patients were followed up for 12 months, and the range of motion of cervical vertebrae, cervical curvature index were observed,as well as the Visual Analogue Scale and Japanese Orthopaedic Association scores were condueted. Moreover, the operation time, blood loss and adverse reactions were recorded.RESULTS AND CONCLUSION: (1) The loss of range of motion of the cervical vertebrae in the group B was significantly less than that in the group A (P < 0.05). (2) The cervical curvature index in the group A was significantly improved (P < 0.05), but the index had no significant change in the group B. (3) The axial systems were significantly improved in both groups, especially in the group A (P < 0.05). (4) The neurological function was significantly improved in both groups (P < 0.05), which showed no significant difference between two groups (P > 0.05). (5) The intraoperative blood loss in the group B was significantly more than that in the group A (P < 0.05). (6) The incidence of hoarseness and dysphagia in the group A was 19％. The incidence of wound infection, cerebrospinal fluid leakage and C5 nerve root palsy in the group B was 9％. (7) These results suggest that during choosing an appropriate method for MCSM,surgeons' skills and patients' situation should be considered.

Objective To observe the changes of antithrombin activity(AT) and D-dimer in acute leukemia(AL)children complicated with disseminated intravascular coagulation(DIC) and to explore the changes of blood coagulation and fibrinolysis function.Methods Twenty-seven AL children without DIC were selected as AL group and 25 childern complicated with DIC were selected as observe group,36 health children were as control group.Plasma level of AT,D-dimer,fibrinogen,activated partial thromboplastin time and prothrombin time were tested by color substrate,immuno-latex turbidimetry,and coagulation method.And the rusults of AL group were compared with observe group and control group by SPSS 10.0 software.Results PT was significantly prolonged and the D-dimer in AL group and observation group were significantly higher than those in control group(Pa