Expression of gamma interferon (IFN-?)-like substance in adrenal pheochromocytoma was investigated with immunohistochemical technique. In 15 out of the 16 cases of adrenal pheochromocytoma positive IFN-@-like immunoreactive substance was detected in the cytoplasm of the tumor cells, whereas in adrenal tissues adjacent to adrenal tumors in 26 cases (pheochromocytoma 12, adrenal corti-col tumors 12, others 2) only two with pheochromocytoma showed positive IFN-?-like immunoreactive substance in the cytoplasm of zona reticularis cells. The results suggest that IFN-? may be a kind of antigen associated with differentiation of cell.

OBJECTIVE:To optimize?-cyclodextrin inclusion process in the inclusion of volatile oil compounds of peppermint,biond magnolia flower and agastache rugosa in biyuanling granules.METHODS:Orthogonal experiment was performed,the inclusion process was evaluated with inclusion rate of volatile oil,recovery rate of inclusion compound,extract ratio of inclusion compound as indexes.RESULTS:The optimized inclusion condition was as follows,the ratio of volatile oil to?-cyclodextrin was1∶8(ml/g)with10min ultrasound time and20℃ultrasound water temperature.CONCLUSIONS:The optimized method was simple and efficient,and suitable for industrialized production.

Objective To study the effects of heart ischemia reperfusion on conductive function of atrioventricular node (AVN) in rabbits. Methods Animal models of ischemia reperfusion of AVN were established by ligating and reopening the right coronary artery of rabbits. A total of 60 adult rabbits were divided into control groups ( n =10), right coronary artery occlusion group ( n =10), and ischemia reperfusion groups with ligation of the right artery occlusion for 10, 30, 60 and 120 min respectively ( n =10 for every subgroup). The hemodynamics, His bundle electrography and epicardial electography were carried out and recorded. Results After occlusion of right coronary artery, 94.8% animals in experimental groups were found to have prolonged atrial His interval (AH) ( P

ABSTRACT:Chlamydiae are obligate intracellular bacteria with a unique biphasic developmental cycle ,and have close rela‐tionships with human .Emerging Chlamydia species such as Chlamydia ibidis ,Chlamydia avium and Chlamydia gallinacea changed the chlamydial taxonomy .The biggest change is the abandon of genus Chlamydophilaand its previous six species were recombined into genus Chlamydia ,which in together with the emerging species ,expands genus Chlamydia to 12 species .This paper briefly reviewed the latest taxonomy of Chlamydiae and their identification methods ,which include the classical biological characteristics and physico‐chemical properties ,modern molecular genetics ,and the newly developed whole genome analysis . Presently ,molecular genetics methods ,including sequence analysis of 16S rRNA ,ompA and other Chlamydia‐specific genes , are commonly used for chlamydial identification .

The clinic main application of medical ultrasonic techniques are introduced,including ophthalmology,neurology,angiology,cardiopathy,digestive system,urology,gynaecology and obstetrics,and surgery. Four kinds of medical ultrasonic techniques in the value on the clinic diagnosis are important,namely transcranial color -coded duplex sonography(TCCD),tissue harmonic imaging(THI),three dimensional imaging(3D),and extended field Of view(EFV).

Objective To investigate the correlation between deep vein thrombosis(DVT) and clinical laboratory tests in the regulation of hemostasis. Methods Endothelin-1 (ET-1), thrombomodulin (TM), P-selectin, prothrombin fragment _ 1+2 (F_ 1+2 ), thrombin-antithrombin complex (TAT), thrombus precursor protein (TpP) and D-Dimer (D-D) were measured in DVT patients (n=72) and normal individuals (n=20) with ELISA method. The sensitivity, specificity, negative predictive value (NPV), positive predictive value (PPV) and accuracy were evaluated for each of the items, and the area of the underlying receiver operating characteristic curve (AUC ROC ) was used to appraise diagnostic efficiency. Results Except ET-1, there were significant differences between the DVT group and normal control group in the other items. The AUC ROC of P-selectin, F_ 1+2 , TpP and D-D was bigger than that of ET-1, TM and TAT (P0.05). The TpP had the highest sensitivity, NPV and accuracy, and the D-D had the highest specificity and PPV. Conclusion The increase of D-D and TpP could reflect the occurrence of continuous coagulation and fibrolysis respectively. Thus the combination of measuring TpP and D-D could provide better laboratory evidence for the diagnosis of patients with DVT.

Objective To study the clinical effect of nourishing kidney, securing essence and cooling blood on incipient diabetic nephropathy. Methods A total of 110 patients with incipient diabetic nephropathy were randomly recruited into a treatment group and a control group. The treatment group was treated with the method of nourishing kidney, securing essence and cooling blood and benazepril hydrochloride tablets. The control group was treated with bcnazepril hydrochloride tablets Exclusively. Urina microalbumin was detected in all patients 24 h before and after treatment. Results The effective rate was 94.7% and 86.8% in the treatment group and the control group respectively, showing significant difference (t= 9.31, P<0.01) . Conclusion The method of nourishing kidney, securing essence and cooling blood is effective to decrease urina microalbumin in incipient diabetic nephropathy.

Objective To explore the effect of toll-like receptor 4 (TLR4), myeloid differentiation protein-2 (MD2), and stromal interaction molecular 1 (STIM1) for regulating human vascular endothelial calcium overload injury and inflammatory reaction induced by bacterial endotoxin (LPS).Methods Human umbilical vein endothelial cells (HUVECs) were cultured in Dulbecco's modification of Eagle's medium (DMEM). ① The levels of TLR4, MD2 and nuclear factor-κB (NF-κB) were detected by reverse transcriotion-polymerase chain reaction (RT-PCR) before and 0.5, 1, 6, 12, 24 hours after LPS stimulation. ② Intracellular calcium peak level was detected by confocal following probe fluo-3 AM loading in HUVEC cells induced with LPS and transfected by psiSTIM or psiTLR. ③ MD2, STIM1 or NF-κB protein level was detected by immunoprecipitation (IP) and immuno-blotting in HUVEC cells which were transfected by TLR4 inhibited expression (psiTLR) for 12 hours and followed by LPS stimulation for 6 hours. ④ HUVEC cells were randomly divided into 6 groups: control group, LPS group, PDTC 0.1 mg/L group, PDTC 1 mg/L group, psiTLR 1 h group and psiTLR 12 h group. Tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) were detected by enzyme linked immunosorbent assay (ELISA) in supernatant. The mRNA levels of STIM1 and NF-κB were detected by RT-PCR.Results ① The mRNA levels of TLR4, MD2, and NF-κB gradually increased after LPS induction and peaked at 6 hours (2-ΔΔCt: 23.52±2.88, 17.43±3.43, 18.13±2.99, respectively), which were statistically significant before the stimulation with LPS (2-ΔΔCt: 7.02±2.81, 5.19±3.22, 8.11±1.42, allP < 0.05). ② Extracellular calcium influx in LPS group was increased significantly higher than control group (nmol/L: 108.13±22.33 vs. 41.57±13.19, P < 0.01). Extracellular calcium influx in psiSTIM+LPS group (nmol/L: 62.61±14.12 vs. 108.13±22.33,P < 0.05) and psiTLR+LPS group (nmol/L: 50.78±8.05 vs. 109.43±20.21,P < 0.01) were both suppressed as compared with LPS group. While extracellular calcium peak level in psiTLR+psiSTIM+LPS group further decreased (nmol/L: 39.31±6.42 vs. 109.43±20.21,P < 0.01). ③ MD2 protein but not STIM1 or NF-κB can be detected in anti-TLR4 precipitates in control (ctrl-) by immunoprecipitation. MD2 protein level increased in anti-TLR4 precipitates in LPS group (ctrl+) and was suppressed in TLR4 inhibiting group (psiTLR). ④ The levels of TNF-α in PDTC 1mg/L group were significantly lower than those of LPS group (ng/L: 0.60±0.24 vs. 1.77±0.66,P < 0.01). The levels of IL-6 in PDTC 0.1 mg/L, 1 mg/L group and psiTLR 12 h group decreased significantly lower than that of LPS group (ng/L: 232.10±63.54, 134.32±37.23, 284.23±56.14 vs. 510.22±89.23, allP < 0.05). Compared to LPS group, the mRNA levels of NF-κB and STIM1 were obviously inhibited in PDTC1 mg/L group and psiTLR 12 h group [NF-κB mRNA (2-ΔΔCt): 17.22±2.35, 13.24±3.54 vs. 30.16±2.06; STIM1 mRNA (2-ΔΔCt): 12.57±2.43, 12.21±2.46 vs. 25.12±2.02, allP < 0.05]. Conclusions TLR4, MD2, NF-κB signal and SOC calcium channel STIM1 mediate LPS induced-calcium influx and inflammatory mediators level in HUVEC cells. Extracellular calcium overload and inflammatory response by endotoxin induction can be effectively inhibited by down-regulation of TLR4, NF-κB and/or STIM1.

@@