Instead of poly—I—lysine, the microtitre plate is in turn pretreated with concentrated sulphuric acid and 100?g/ ml protamine. The living target cells are well attached to the plate. Fixed with 0.025—0.05% glutaraldehyda, the target cells are suitable for screening monoclonal antibodies by ELISA. This assay is specific, sensitive and well reproductive. It is a useful method for screening large scale spent supernatant of hybridomas and ascites at less expense and time. On the other hand, this method can be also used to detect cellular antigens with either MAbs or conventional antibodies.

Objective:To investigate the feasibility of fast assay of vitamin C (VC) in body fluids by iodometry with UV absorbance detection.Methods:The sample was pretreated with iodoacetic acid to block sulfhydryl group.Protein was precipitated by trichloroacetic acid,and chromogen was extracted with chloromethylene.The change of absorbance after 30 s reaction of the pretreated sample with iodine was measured.Results:The assay of absorbance before and after 30 s reaction of the pretreated sample with iodine showed the variation coefficient within 5%,and the recovery of VC was above 90%.There was linear response of the absorbance change to the amount of VC from body fluids with slope consistent to that for iodine.Conclusion:This method may be desirable for fast assay of VC in body fluids.

Antigen specific rosette forming cells(S-RFC),plague forming cells(PFC)and Con A initiated spleen cells ~3H-TdR uptake tests were used to see the effects of transfer fa-ctor(TF).the experiments showed TF had enhancing effects on S-RFC of immunized mice and Con A initiated spleen cells ~3H-TdR uptake but no effects on S-RFC of nonimmunized mice,PFC of both immunized and non-immunized miceand spleen cells ~3H-TdR uptake without ConA.High concentration of TF inhibited Con A initated spleen cells ~3H-TdR uptake.Bovine,porcine andhuman TF had similar ?ffects on S-RFC of immunized mice in vivo and Con A in-iated spleen cells ~3H- TdR uptake in vitro. The results suggest that TF have non-specific effects on mature T lymphocytes activated by antigen or mitogen which are similar to the effects of thymic factors.The substances in TF,which have enhancing or inhibiting effects,are promising to be useful immune modifiers.Effects of bovine,porcine and human TF are not species spcifiic.Both S-RFC and Con A initiated murine spleen cells ~3H-TdR uptake tests are promising to be the methods to measure non-specific activities of TF. Key words:Transfer factor,S-RFC.Con A initiated spleen cells ~3H-TdR uptake, Immune modulation.

OBJECTIVE:To evaluate the compatible stability of cefpiramide sodium for injection with metronidazole in-jection.METHODS:Content,color and pH value of the mixed solution at different time within6hours after mixing under room temperature were monitored.RESULTS:There were no significant changes in content,color and pH value for the mixed solu-tion determined at different time within6hours after mixing under room temperature.CONCLUSION:The mixture of cefpi-ramide sodium with metronidazole injection can be used within6h after mixing.

E-health is a new kind of health care model, which raises medical efficiency, brings happiness and hope to the therapy of severe disease, and stands for the future of health care. However, it is faced with many issues and challenges, such as the safety of information storing, privacy protection and the distribution of health resources.Therefore, research & development in e-health should observe some criterion. The author holds that the development of e-health should observe ethical principles such as inform-concent, safety, justice, risk-benefit and developing step by step, and puts forward regulating recommendations in many aspects.

Objective To explore the treatment method and curative effect for lower limb varicose vein or swelling secondary to Cockett syndrome. Methods From March 2014 to March 2015,a total of 25 cases of lower limb varicose vein (22 cases)or swelling (3 cases)secondary to Cockett syndrome were treated with percutaneous transluminal angiography (PTA).Stents were placed in the veins in 19 cases,and 22 patients with varicose veins were treated with the great saphenous vein high ligation and point type stripping at secondary stage. Results The operations were successful.The iliac vein PTA was performed in all the 25 patients.The iliac vein stent implantation was performed in 17 cases of varicose veins and 2 cases of lower limb swelling.The saphenous vein high ligation and point type stripping was performed in 22 cases of varicose veins of lower extremity at 1 month after the interventional treatment.Postoperatively,no complications such as lower limb swelling,infection,or deep vein thrombosis occurred.Follow-up at the first postoperative month showed 20 cases of cured and 5 cases of alleviated.Follow-up for 3 -15 months (mean,12.4 months)in the 25 cases showed no lower limb swelling,recurrence of varicose vein,or deep vein thrombosis. Conclusions Cockett syndrome patients can be treated with iliac vein PTA.Whether or not a stent placement is required is determined according to the extent of vein stenosis.Postoperatively,lower limb swelling can be significantly alleviated.For patients with secondary varicose vein of lower extremity,saphenous vein ligation and point type stripping is recommended after 1 month.

Objective: To examine correlations between MRI and cognitive changes associated with cerebral infarction. Methods: Using HDS-R and Senior Cognitive Scale, we assessed 101 patients with cerebral infarction during acute to rehabilitation phase. The results were compared with their MRI. Results: At 3 weeks after onset, cognitive impairment was found in 70.3% of the patients. At 6 months after onset, 10% recovered to normal, 35.6% improved, 22.8% worsened, and 42.5% met the criteria of dementia. During acute phase, infarction focus and leukoaraiosis (LA) were related to cognitive impairment ( P

AIM: To study the effect of selectin on lung injury in rabbits with diabetic ketoacidosis(DKA). METHODS: 12 male New Zealand rabbits were divided into experimental group (DK groups, intravenous injection of streptozocin and alloxan monohydroate, n =6) and normal control group (received same dose of saline, n =6). After 72 hours, all the animals were killed and blood and lung tissue were collected. Blood gases, expressions of selectin-P and selectin-L were detected. RESULTS: The expression of selectin in DK group were higher than that in NS group. CONCLUSION: These results indicate that selectin expression may play an important role in lung injury during diabetic ketoacidosis.

The effect of iodinated contrast on thyroid function and auto-antibodies after a single percutaneous coronary intervention (PCI) was explored.In 96 patients with randomly selected PCI,serum TSH,T3,T4,thyroid peroxidase antibody (TPOAb),thyroglobulin antibody (TgAb) were determined preoperatively as well as by 3-6 months postoperatively.After PCI,the level of TSH,T3,T4,showed no significant changes; TgAb,TPOAb which were positive preoperatively,after 3-6 months were statistically increased(P＜0.05).Iodinated contrast in PCI has no significant influence on thyroid function and auto-antibodies after 3-6 months.

Objective To evaluate the relationship between iodine intake and the prevalence of thyroid diseases in Urumqi.Methods A total of 1693 subjects were investigated.Serum thyroid hormones,thyroid autoantibodies,and urinary iodine concentration were determined,and type B ultrasonography of thyroid gland was performed in all participants.Result The urinary iodine level revealed that 9.5％ of the subjects were iodine deficient and 30.0％ iodine excessive.The average median urinary iodine was 254.9 μg/L.Serum total T4 level in the idione adequate and more than adequate groups was significantly higher than the other 2 groups [ ( 9.02±2.63 ) vs (7.69±2.85)、(8.45 ±2.13 ) μg/dl,both P＜0.05 ],and serum TSH level in the idione deficient group was significantly higher than the other 2 groups [ (3.00±1.86) vs (2.37±1.91),(2.27±1.86) mIU/L,both P＜0.01 ].There was no significant statistical difference in positive rates of thyroid autoantibodies,morbidities of thyroid dysfunction and goiter among 3 groups.Conclusion The iodine deficient situation has been corrected in Urumqi.There is no difference in morbidities of thyroid diseases in population with different iodine intakes.