Herpes simplex keratitis (HSK) is the first inflammatory cause for uniocular blindness.The clinical inspection methods commonly used are limited to general observation,while in vivo confocal microscopy (IVCM) can provide details of cellular changes in an intravital HSK.IVCM not only gives more clinical evidence for pathology studying of HSK,but also serves as a new technology for the whole progress of HSK epidemiology.This article reviewed current researches of applying IVCM for HSK clinical observation and summarized these latest results.Morphological changes of each layer of the cornea,the specificity of these changes and clinical application of IVCM had been discussed in this article.

We have studied the induction of mice spleen suppressor cell activity by Trypterygium Wilfordii Hook f. both in vivo and in vitro. We detected the suppressor cell activity in mice which were administrated with the drug for different days & found that after giving the drug for 5 or 9 days, the suppressor cell activity elevated remarkly, but for 12 & 15 days, the suppressor cell activity varied indefinitely, some were higher & some were lower. The drug inhibited the response of spleen cell to Con A too. But the release of inhibition on Con A responsibility was earlier than the recovery of elevated suppressor cell activity. Cocultured with the drug, slight promotion on cell proliferation was observed. The normal spleen cells cocultured with the drug for two days suppressed the normal spleen cell proliferation stimulated by Con A, the suppressive rate was comparable to that of Con A induced suppressor celll.

According to the principles of cognitive psychology,the rational-emotional therapy has effectives on patients with emotional disorder in changing activating events,transferring their belief and then correcting their emotional experience.The content of emotional therapy and psychotherapy in Inner Canon of Huangdi are:joy prevailing over melancholy,anger prevailing over anxiety,fear prevailing over joy,sorrow prevailing over anger,anxiety prevailing over fear,and so on.It has practical clinic signifi cance.

OBJECTIVE:To study the method of preparing PEG-SOD enteric-coated capsuls and quality standard.ME_ THODS:Orthogonal design was used to select the optimal conditions for preparing PEG-SOD enteric-coated capsuls and the relevant quality standard of PEG-SOD enteric-coated capsuls was established according to the China Pharmacopoeia(2000). RESULTS:The optimal conditions were as follows:the content of PEG-SOD per capsule was40000IU;the weight ratio of stabilizer lactose was2.5%;filler was carboxymethyl starch;drying process was at60℃for20min.The preparation was ac?corded with the relevant quality standard.CONCLUSION:The technic of preparation is feasible,the method of quality control is reliable and the quality of preparation is stable.

Sleep deprivation, as a stress just like starvation and anoxia, can induce the physiological function changes, such as emotion disorders, cognition disorders, and immune disorders. Oxidative stress is common in cells and is closely related to aging, Alzheimer disease, Pakinson diseases, etc. Previous studies showed that sleep deprivation could induce oxidative stress via different pathways, namely, the increase of the metabolic rate and free radicals, the depress of antioxidant ability, and the indirect effects of endoplasmic reticulum stress. In this review we summarize the recent progress on the above fields.

Objective:To systematically assess the value of 2 dimension color Doppler ultrasound(2D-CDUS) in diagnosis,surgical treatment and interventional therapy of carotid artery stenosis. Methods: Twenty seven carotid stenosis patients were examined before and after operation with 2D-CDUS. The morphology and hemodynamic of carotid artery were detected. Results: Pre-operative examination showed that there were 17 cases with stenosis degree being 50%-70%, 2 cases 71%-79%, 5 cases 80%-90%, 3 cases 90%-99%. Twelve cases were operated on with carotid endarterectomy(CEA), 15 cases with percutaneous transluminal angioplasty and stent(PTAS). After operation all the vessels with CEA were patent, colored well and blood velocity was close to normal. Residual intima was observed floating in the blood vessel in only one patient. In the patients treated by PTAS, the location and courser of the stents were normal,and the vessels were patent. Conclusion: 2D-CDUS is convenient to use and non-invasive, which can assess extracranial carotid stenosis accurately before operation, assess the curative effect and detect the complications after operation.

Objective:To assess the value of Transcranial Two Dimensional Color Doppler Ultrasound(TC-2D-CDUS) in diagnosis of carotid artery stenosis and in follow-up study after surgical treatment.Methods: Thirteen patients with carotid artery stenosis, who were excluded from vertebral or intracranial diseases, were detected before and after operation with TC-2D-CDUS. Results: TC-2D-CDUS indicated that 2 patients' image were not satisfactory, and the blood velocity of middle cerebral artery (MCA) in the same side of lesion was lowered to different extents in the other 11 patients. The waveform was blunted in 3 patients with their systolic peak disappeared, acceleration time prolonged, and the direction of the anterior cerebral artery(ACA) in the same side inverted.After operation,TC-2D-CDUS indicated that MCA blood velocity and the direction of ACA were normal. The blood distribution was symmetric in bilateral brains. Conclusion: TC-2D-CDUS can provide intracranial hemodynamic information. It can be used in the follow-up study after operation,helping to make accurate judgement and discover complications.

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Transcription factorhypoxia inducible factor -1(HIF-1)plays a key role in cell adaption to hypoxia(from 21%O2 to 1%O2).Researches have shown that HIF -1 is closely related to occurrence and de-velopment in many malignant cancers .In this paper,we review the effect of HIF -1 in tumor growth,metastasis, apoptosis and angiogenesis .

BACKGROUND:Insulin-like growth factor-1 can promote mitosis of fibroblasts as wel as periodontal cellgrowth, differentiation and synthesis of extracelular matrix.
OBJECTIVE: To observe the effects of chitosan/colagen composite scaffold carrying insulin-like growth factor-1 on proliferation of human periodontal ligament cels.
METHODS: The human periodontal ligament cels were seeded on chitosan/colagen composite scaffold carrying insulin-like growth factor-1 and ordinary colagen scaffold. The release of recombinant human transforming growth factor-β1 was detected at 1, 24 hours and 1 week after culture; celladhesion and proliferation were detected at days 1, 7 and 28.
RESULTS AND CONCLUSION:The release rate of recombinant human transforming growth factor-β1 in the composite scaffold was significantly lower than that in the ordinary colagen scaffold at 1, 24 hours and 1 week after cellseeding (P < 0.01). The celladhesion and proliferation showed no difference between two groups at day 1 after cellseeding, but became significantly higher in the composite scaffold than that in the ordinary colagen scaffold at days 7 and 28 (P < 0.01). These findings indicate that chitosan/colagen composite scaffold carrying insulin-like growth factor-1 can significantly promote the proliferation of the human periodontal ligament cels.