Animals ; Blood Chemical Analysis ; Blood Circulation ; physiology ; Blood Physiological Phenomena ; Lymph ; chemistry ; physiology ; Lymphatic System ; physiology ; Male ; Rats ; Rats, Wistar ; Rheology

Adult ; Chondroblastoma ; pathology ; Chondroma ; pathology ; surgery ; Diagnosis, Differential ; Female ; Humans ; Ovarian Neoplasms ; pathology ; surgery ; Ovary ; pathology ; Teratoma ; pathology

Objective To evaluate the response rate and survival rates of refractory or relapsed Hodgkin lymphoma (HL) and grey zone lymphoma patients treated with autologous peripheral blood stem cell transplantation (APBSCT).Methods From January 2004 to August 2012,30 HL and grey zone lymphoma patients were retrospectively analyzed.Statistical analysis was done to explore the long term outcome and prognostic factors of patients treated with APBSCT.Among all patients,the median age at transplantion was 30 (13-55) years old.Patients were major with nodular sclerosis HL and in stage Ⅲ/Ⅳ.Results Every patient had a successful collection.The median MNC cell dose infused was 6.8×108/kg [range (1.0-13.8)×108/kg] and median CD34+ cell dose infused was 6.3×106/kg [range (0.6-20.6)×106/kg].Median time to neutrophil engraftment was 9 days (range 8-12 days).28 patients were evaluable after transplantation with a median follow-up of 18.5 months (range 2.5-95.0 months).The overall response rate was 89.3 ％ [CR 64.3 ％ (18/28),PR 25.0 ％ (7/28)].The overall survival (OS) rate and progression free survival (PFS) rate at 5 year would be 78 ％ and 58 ％ for all patients.3 in 7 patients with no remission after salvage chemotherapy with rituximab plus chemotherapy before APBSCT got CR and 2 got PR.Univariate analysis showed that disease status and the number of replacement types of chemotherapy prior to transplantation affected OS,the history of radiotherapy prior to transplantation affected PFS.Conclusion APBSCT can increase CR rate,prolong survival time in patients with refractory or relapsed HL and grey zone lymphoma.Rituximab plus chemotherapy as a salvage therapy could raise CR rate before APBSCT.Chemosensitivity before transplantation affect outcome with APBSCT.Changing many types of chemotherapy is adverse for APBSCT.Salvage radiotherapy before APBSCT is not recommended.

Animals ; Blood Pressure ; Lymphatic Vessels ; physiopathology ; Male ; Norepinephrine ; metabolism ; Rats ; Rats, Wistar ; Shock, Hemorrhagic ; metabolism ; physiopathology

OBJECTIVETo observe the effects of mesenteric lymph duct (MLD) ligation on erythrocyte rheology in acute hemorrhagic rats.

METHODSTwenty male Wistar rats were randomly divided into hemorrhage group and ligation group (n = 10). Blood (one fourth of body whole blood volume) was withdrawn through right common carotid arteries after rats were anesthetized. In ligation group, the MLD was ligated after hemorrhage, and only threading under the MLD in hemorrhage group. The survival situation at 24 h was recorded. After 24 h, survival rats were anesthetized again, blood sample was withdrawn through left common carotid artery rapidly. And the erythrocyte sedimentation rate (ESR), electrophoresis of erythrocytes, hematocrit (Hct) were determined in blood samples of before and after hemorrhage, the erythrocytes aggregation and deformability indices were calculated.

RESULTSIt showed that the ligation group survival (9 rats alive) was slightly better than that in hemorrhage group (6 rats alive). The results of erythrocyte rheology indices showed that the ESR, K value of equation, K value of emendation and electrophoresis time in hemorrhage group and ligation group were higher or longer than those before hemorrhage, the erythrocyte deformability was reduced significantly, respectively. And the erythrocytes aggregation index in hemorrhage group was increased, the electrophoresis length and migration of erythrocyte in hemorrhage group were lower than those before hemorrhage, respectively. But compared with hemorrhage group, the ESR, K value of equation, K value of emendation, erythrocytes aggregation index and electrophoresis time in ligation group were lower, the electrophoresis lenght, migration and deformability of erythrocyte were increased significantly.

CONCLUSIONThe results indicate that the higher erythrocyte aggregation ability, lower electrophoresis function and deformability are caused by acute hemorrhage in rats, and the MLD ligation can improve the abnormal erythrocyte rheology.

Animals ; Disease Models, Animal ; Erythrocyte Deformability ; Erythrocytes ; pathology ; Hemorrhage ; surgery ; Ligation ; Lymphatic Vessels ; surgery ; Male ; Mesentery ; surgery ; Rats ; Rats, Wistar ; Rheology ; Shock, Hemorrhagic ; surgery

Human xanthine oxidase is considered to be a target for therapy of hyperuricemia. Cichorium intybus is a Chinese plant medicine which widely used in Xinjiang against various diseases. In order to screen the inhibitors of xanthine oxidase from C. intybus and to explore main pharmacological actions of cichory a compound collection of C. intybus was built via consulting related references about chemical research on cichory. The three-dimensional crystal structure of xanthine oxidase (PDB code: 1N5X) from Protein Data Bank was downloaded.. Autodock 4.2 was employed to screen the inhibitors of xanthine oxidase from cichory 70 compounds were found to possess quite low binding free energy comparing with TEI (febuxostat). C. intybus contains constituents possessing potential inhibitive activity against xanthine oxidase. It can explain the main pharmacological actions of cichory which can significantly lower the level of serum uric acid.
Chicory ; chemistry ; Databases, Protein ; Drugs, Chinese Herbal ; chemistry ; Enzyme Inhibitors ; chemistry ; Humans ; Molecular Docking Simulation ; Molecular Structure ; Xanthine Oxidase ; antagonists & inhibitors ; metabolism

AIM: To explore the relationship between the expression of caspase-2 and caspase-3 and the apoptosis in retinal ischemia/reperfusion (I/R) injury of rats, as well as the therapeutic effects of brain derived neurotrophic factor (BDNF)on the ischemic and reperfused retina.METHODS: This experiment was conducted at the laboratory of Affiliated Hospital of Qingdao University Medical College from February 2007 to July 2007. The models of retinal ischemia/reperfusion injury were made by transiently elevating intraocular pressure. A total of 28 rats were divided into Normal and Operative Groups. Operative group was divided into six subgroups. In each subgroup there were four rats. The left eyes of rats were used for I/R and the right eyes were used for intravitreal injection of brain-derived neurotrophic factor (BDNF) as treatment group. After reperfusion we divided our subgroups according to the reperfusion time as 1, 6, 12, 24, 48, 72 hours. The retinal ganglion cell number was counted by using optic microscope(BX-51,Olympus). Apoptosis was assessed by the terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick-end labelling (TUNEL) method, and the expression of caspase-2,caspase-3 was studied by enzyme linked immunosorbent assay (ELISA) and strept avidin-biotin complex (SABC)immunohistochemistry.RESULTS: No positive apoptotic cells were observed in the normal rats' retinae, but there were a significant number of positive apoptosis cells in 6-24 hours after transient ischemia followed by a decrease at 48 hours. The number of apoptotic cells reached a maximum at 24 hours after ischemia .The expression of caspase-2 gradually increased as early as at 6 hours, reached a peak at 24 hours, then decreased between 48 and 72 hours. Similarly, caspase-3 has the same rule with caspsae-2 in the time courses of expression in retinal tissues.BDNF administered before reperfusion inhibited the expression of apoptosis and ameliorated the retinal tissue damage. It also decreased caspase-2 and caspase-3 expression in ischemic/reperfused retina.CONCLUSION: Retinal ischemia-reperfusion can induce apoptosis of cells in the retina. BDNF rescues retinal ganglion cells (RGCs) from retinal ischemia/reperfusion injury through down-regulation of cell apoptosis and caspase-2 and caspase-3 expression. BDNF have a neuroprotective effect on retina.

OBJECTIVETo investigate the effects of microwave radiation on thymocytes in mice at different power densities.

METHODSThe experimental animals were whole-body exposed to microwave radiation with frequency of 2,450 MHz, power density of 1, 5, 15 mW/cm(2) respectively 1 h everyday for 30 days. Then the thymus were taken out after the mice were decapitated. Thymus index, morphological characteristics of thymus were examined. The changes of thymus T-cell subgroups, cell cycle progression in thymocytes and cellular apoptosis were detected with flow cytometry (FCM).

RESULTSThe body weights of animals in 5, 15 mW/cm(2) irradiation groups [(28.10 +/- 1.46), (27.50 +/- 2.52) g] were lower than that of the control [(31.95 +/- 2.51) g] (P < 0.05). Pathological observation showed dark red piece of nucleus, some nuclei inclined to one side, slight increase in hassall body. The expressions of CD8 in 5, 15 mW/cm(2) irradiation groups (29.14% +/- 1.68%, 29.18% +/- 0.81%) were higher than that in control group (26.95% +/- 1.27%) (P < 0.05). The percentages of G(2) + M phase thymocytes in both radiation groups (12.24% +/- 1.82%, 11.19% +/- 1.36%) were lower than that in control group (14.58% +/- 0.64%) (P < 0.01). Thymocytic apoptosis rates in the three experimental groups (7.18% +/- 0.99%, 10.06% +/- 1.58%, 9.45% +/- 0.92%) were higher than that in control (4.25% +/- 1.63%) (P < 0.01), but the evident difference between 5 mW/cm(2) and 15 mW/cm(2) was not found (P > 0.05).

CONCLUSIONSub-chronic microwave exposure (2 450 MHz, 5, 15 mW/cm(2)) could induce thymocyte apoptosis, cause pathological changes in thymus, and affect cell cycle progression, thus may inhibit the immune function of the animal.

Animals ; Apoptosis ; radiation effects ; Dose-Response Relationship, Radiation ; Female ; Male ; Mice ; Microwaves ; adverse effects ; T-Lymphocytes ; radiation effects ; Thymus Gland ; cytology ; radiation effects

Cadherins ; metabolism ; Female ; Humans ; MCF-7 Cells ; Neoplastic Stem Cells ; metabolism ; Receptor, Notch1 ; metabolism ; Receptors, CXCR4 ; metabolism ; Vascular Endothelial Growth Factor A ; metabolism ; Vascular Endothelial Growth Factor C ; metabolism

OBJECTIVESTo study the effect of lead acetate on the expression of nerve growth factor (NGF) protein in rat brain and the regulation of thyroid hormone.

METHODSLead acetate was given to SD rats intraperitoneally ip. at the dosage of 25, 50 and 100 mg/kg respectively. 6-n-propyl-2-thiouracil (PTU) was used to make a hypothyroid model and then lead acetate was given at the dosage of 50 mg/kg body weight through i.p. The NGF protein expression in rat brain was observed by immunohistochemistry Triiodothyronine (T3), thyroxin (T4), TSH in serum and T3, T4 in brain tissue were determined by radio immunoassays (RIAs).

RESULTSThe average gray value of NGF protein in cerebral cortex of 50 mg, 100 mg treated groups (180.49 +/- 10.33, 169.72 +/- 19.75, respectively) were lower than the control (200.75 +/- 3.27, P<0.01). The area density of NGF protein in hippocampus of three treated groups (0.08 +/- 0.14, 0.12 +/- 0.02, 0.13 +/- 0.04, respectively) were significantly different from the control (0.025 +/- 0.015, P<0.05). The area density and the average gray value of NGF protein in lead acetate treated hypothyroid rat brain were of no significant changes. The levels of serum T3 in three treated groups [(0.68 +/- 0.02), (0.57 +/- 0.04), (0.54 +/- 0.02) microg/L respectively] and T4 [(28.30 +/- 1.83), (27.35 +/- 2.55), (24.00 +/- 3.01) microg/L] in serum were significantly lower while TSH [(6.34 +/- 1.13), (7.74 +/- 0.79), (9.16 +/- 0.77) IU] higher than those in the control [T3 (0.97 +/- 0.14) microg/L, T4 (54.50 +/- 3.70) microg/L and TSH (4.62 +/- 2.16) IU], and there was a good dose-response relationship. The levels of T3 in cerebral cortex of three treated groups [(13.26 +/- 0.81), (11.49 +/- 0.10), (10.42 +/- 1.19) pg/mg pro respectively] and T4 [(0.50 +/- 0.03), (0.49 +/- 0.13), (0.42 +/- 0.01) ng/mg pro] were significantly lower than those in control [(20.85 +/- 11.01) pg/mg pro, (0.76 +/- 0.14) ng/mg pro, P<0.05, P<0.01].

CONCLUSIONLead could increase the NGF protein expression in rat brain, which may be regulated by thyroid hormone.

Animals ; Brain Chemistry ; drug effects ; Immunohistochemistry ; Male ; Nerve Growth Factor ; analysis ; Organometallic Compounds ; toxicity ; Rats ; Rats, Sprague-Dawley ; Thyroid Hormones ; analysis ; blood ; physiology