Varicella is an acute,highly contagious respiratory and caused by Varicella-zoster virus(VZV),After the primary infection,VZV induce Varicella,then the virus remains dormant in sensory nerve roots in life.Upon the reactivation,shingles can occur.Most of patients can recovery very soon,but kinds of potentially sever complication can induce death.Nowadays the VZV vaccination isn’t included in the expanded immunization program in our country. Varicella outbreaks take place at times in the middle of children of our country.The paper offers concise description about pathogen characteristics,diagnosis methods,clinical character,epidemiology knowledge and strategy of prevention.

In this study,the VP2 gene of feline panleukopenia virus(FPV) isolated from tiger was successfully cloned and expressed in Pichia pastoris yeast.The VP2 gene was amplified by PCR with a pair of specific primer.Then PCR products was purified and cloned into pGEM-T for sequencing.The interesting gene fragment was recovered after the double enzyme digestion of EcoRI/NotI,then subcloned into pPICZ?A for secretory expression.The recombinant pPICZ?AVP2 was linearized with SacI and then transformed into competence yeast GS115 for expression under the induction of 1% methanol.The positive recombinants were screened by PCR method.The expression product was identified by SDS-PAGE and western-blotting.The results showed that there was a molecular weight of 32 kD,which could be specifically recognized by polyclonic antibody against FPV.It revealed that the recombinant VP2 protein had correct three-dimensional structure,which would be used as a antigen protein for the diagnosis and prevention of FPV infection in tigers.

Anti tumor angiogenesis offers new opportunity for tumor treatment;Chinese medicine is an effective angiogenesis inhibitor with advantages of cheapness and innocuity.With its anti tumor and angiogenesis research being further continuously,Chinese herbal medicine is hopeful to be ideal and general preventive and treatment remedy for tumor.

Induced pluripotent stem cells (iPSCs) are a type of pluripotent stem cells that can be generated from adult somatic cells.They have similar characteristics and function to embryonic stem cells (ESCs).Over the past decade,iPSCs were widely concerned in regenerative medicine and stem cell field.Especially the patient specific iPSCs have several advantages over ESCs,such as convenient source,do not exist immune rejection and ethical issues,even keep certain individual genotype.At present,tremendous progress have been made about the application of iPSCs in a variety of retinal diseases.Here,this article reviews pluripotent stem cell sources of RPE,photoreceptors and retinal ganglion cells and current transplantation strategies,the safety problems and prospects.

The effects of high frequency jet ventilation(HFJV) on brain resuscitation had been investigated in 28 cats in which simple brain functional failure was produced by occlusion of both carotid and both vertebral arteries. The results suggested that HFJV could improve endurance of cats when subjected to brain ischemia, raise the survival rate of cats with reversible brain functional failure, and prolong the survival time of cats with permernent brain functional failure. The mechanisms of how HFJ would exert beneficial effect on brain resuscitation was discussed.

Bone morphogenetic protein is a key regulation factor in osteoplast cell differentiation and bone formation.It takes a role of differentiation inducting and orientating by modulating the transcription factor and through some unknown signal transduction pathway,and its expression and function can be adjusted by signal transducting system and specific acceptor inhibiter.This article reviews the research progresses on the aspects.

There is significant evidence to show that many neurosurgical patients with hyponatremia, who were previously diagnosed with syndrome of inappropriate antidiuretic hormone secretion(SIADH), actually have cerebral salt wasting syndrome(CSWS). The critical difference between SIADH and CSWS is that CSWS involves renal salt loss leading to hyponatremia and volume loss, whereas SIADH is a euvolemic or hypervolemic condition. The primary treatment for CSWS is water and salt replacement. The mechanisms underlying CSWS are not understood but may involve ANP or other natriuretic factors and direct neural influence on renal function.

Objective: To establish the quality standard for Ganmaoling Tablets (Radix Ilex asprella, Flos Chrysanthem Indici, Ramulus et Radix Evodia leptae, acetaminophe, etc.). Methods:The acetaminophen, chlorphenamini maleas, caffeine, Radix Ilex asprella, Flos Chrysanthem Indici, Ramulus et Radix Evodia leptae were identified by TLC. The acetaminophen and chlorogenic acid were determined by HPLC. Results:The average recovery of acetaminophe was 101.36%, and RSD was 0.93%, respectively. The average recovery of chlorogenic acid was 100.8%, and RSD was 0.9%, respectively. Conclusion:The method developed is accurate and the reproducibility is good. The method can be used for quality control of the Ganmaoling Tablets.

In order to improve the reliability of cardiac pacemaker contact-less power supply technology, this paper proposes a novel application of wireless feedback voltage stabilizing technology to adjust heart disease patients with inner power supply filter circuit output voltage and current control method, to keep the output voltage stability, and to ensure that the super capacitor and cardiac pacemaker to get a stable power supply. To implement the real-time accurate voltage control with considering the primary and secondary side inductance coupling coefficient changes, the change of the external power supply voltage and load, it is necessary to test thee real-time and accurate output voltage and current value after rectifying filtering. Therefore, based on the chaotic control theory, we adopted method of phase diagram on the basis of the quick observation after rectifying filtering, so that the method of voltage and current could improve the detection time of the circuit. The phase diagram of proposed control method can be divided into 8 segments, and we got 7 zero-extreme points. When these zero-extreme points are detected, according to extreme points of the zero instantaneous values, the corresponding average values of voltage and current were obtained. Simulation and experimental results showed that using the above method can shorten the response time to less than switch devices 1/2 switching cycles, thus validating the effectiveness and feasibility of the proposed detection algorithm.
Algorithms ; Electric Power Supplies ; Feedback ; Humans ; Nonlinear Dynamics ; Pacemaker, Artificial ; Wireless Technology

Objective To investigate the expression changes of hepatic gelsolin (GSN) and the potential effect of traditional Chinese medicine Xuebijing injection in septic rats. Methods A total of 104 male Wistar rats were randomly divided into four groups, ie, normal control group (n = 8), sham operation group (n = 32), cecal ligation and puncture group (CLP group, n = 32) and Xuebijing treatment group (n = 32). The sepsis animal models in the last two groups were developed by CLP. In Xuebijing treatment group, animals were treated intravenously with Xuebijing injection (4 ml/kg) at 2, 12, 24,36, 48 and 60 hours after operation, respectively. Animals were sacrificed respectively at 6, 12, 24, and 72 hours after operation to harvest blood and hepatic tissue samples. Markers of liver function, contents of GSN and Gc globulin and expression of GSN mRNA in the liver tissues were detected. Results Compared with normal control group and sham operation group, hepatic GSN content was decreased significantly at various intervals in CLP group (P ＜ 0. 05), which reached the lowest value of (1.42 ±0.50) ng/mg at 12 hours. Meanwhile, expression of GSN mRNA in the liver was markedly enhanced at six hours after CLP and remained a high value until 72 hours, compared with the sham operation group (1.203±0.053 vs 1.030 ±0.084, P ＜0.05). Similarly, the hepatic Gc globulin contents was increased in the CLP group compared with the normal control group and sham operation group (P ＜ 0.05).After treatment with Xuebijing injection, the hepatic GSN contents at 6-72 hours was increased gradually while serum ALT and AST levels at 6, 12 and 24 hours were reduced significantly in comparison to the CLP group (P ＜ 0.05). Nevertheless, treatment with Xuebijing injection showed no marked effect on hepatic GSN mRNA expression and Gc globulin release (P ＞ 0.05). Conclusions Hepatic GSN contents are persistently reduced in the development of sepsis and treatment with Xuebijing injection can markedly attenuate acute liver injury through increasing GSN contents in severe sepsis.