OBJECTIVE:To evaluate the derma safety of miconazole and chloramphenicol cream (MCC) for Guinea pigs.METHODS:Blank matrix,positive sensitizing agent (2,4-dinitro-chlorobenzene) and MCC (high dose and low dose) were applied on normal or damaged areas of the unhairing backs of Guinea pigs to conduct acute toxicity test,sensitivity test and irritation test,respectively.RESULTS:MCC caused no acute toxicity when applied on the skin of Guinea pigs,nor skin/systemic hypersensitive reaction was noted after repeated sensitization.Single or multiple dosing of MCC caused no irritation on normal skin of Guinea pigs but caused mild irritation on damaged skin which disappeared after 48 h or 72 h.CONCLUSION:MCC has good dermo safety for Guinea pigs.

Objective:To assess the efficacy and safety of Zyrtec drops which is a patent product of UCBpharma in treatment of allergy rhinitis in children. Method :A total of 47 children of both sexes aged between 2 to6 years with allergy rhinitis (AR) were included in this study,who were randomly selected to be treated withZyrtec (Cetirizine 2 HCL) drops 5 mg daily for 3 weeks. Investigators made a global evaluation with symptomscores before treatment and once a week for 3 weeks after treatment. Result:An improvement was shown in eachweek after treatment with statistical significance (P＜0.01). Zyrtec drops provided an excellent improvement atthe end of the study. Tolerance was good. Conclusion :For acting fast ,potent ,good tolerance and convenience inuse,Zyrtec drops is a better treatment in AR in kids.

Objective To evaluate the incidence of hyponatremia in patients with Guillain-Barré syndrom (GBS) and to explore whether hyponatremia is an important predictor of poor outcome.Methods All 455 GBS patients met the inclusion criteria and were divided into three groups as mild,moderate and severe GBS according to Medical Research Council sumscore (MRC sumscore) at nadir.Hyponatremia is defined as serum sodium concentration below 135 mmol/L at nadir.The incidences of hyponatremia in GBS patients with different MRC sumscore were analyzed by x2 tests.Logistic regression models were performed to determine risk factors of hyponatremia and poor prognosis.Results Of all the 455 GBS patients,mild,moderate and severe groups patients were 178,100 and 177 respectively,and 98 (21.5％) GBS patients had hyponatremia.Hyponatremia was more often detected in severe GBS cases (64,36.2％),than in mild (21,11.8％) or moderate (13,13.0％,x2 =28.921,17.074 respectively; all P ＜ 0.01) cases,but there was no significant difference between mild and moderate patients (x2 =0.086 ; P =0.769).Logistic regression analysis identified 3 predictors of hyponatremia:age ＞ 50 (OR =2.013,95％ CI 1.155-3.508,P =0.014),facial weakness (OR =2.493,95％ CI 1.423-4.369,P =0.001) and mechanical ventilation (OR =12.871,95％ CI 5.484-30.207,P =0.001).The presence of hyponatremia (OR =12.770,95％ CI3.419-47.701,P =0.001) and bulbar weakness (OR =3.391,95％ CI 1.182-9.733,P =0.023)predicted death in acute stage.Conclusion As an important predictor of poor outcome in GBS patients,hyponatremia is more likely occurred in patients with older age,facial weakness or respiratory failure.

Environmental enrichment has become a hot topic in laboratory animal science , which is intended to im-prove the well-being of laboratory animals .This paper reviews the research in this area , focusing especially on the princi-ple and procedure of planning enrichment strategies .The consideration of housing laboratory animals should not only focus solely on animal well-being, manpower and economics , but also on the precision and accuracy of the experimental results . It also introduces the type of environmental enrichment and practice in widespread use currently .

Objective To explore the effects of quetiapine combined with sertraline in the treatment of schizophrenia patients with depressive symptoms.Methods 86 patients of convalescence of schizophrenia with depression symptoms were randomly divided into quetiapine combined with sertraline group(observation group) and quetiapine group(control group).The treatment course was 8 weeks.Before and after treatment,the positive and negative symptoms scale (PANSS) and Hamilton depression scale (HAMD) were assessed in the two groups.The curative effect of quetiapine combined with sertraline on the schizophrenia patients with depression symptoms was explored.Results Pre-treatment,there were no differences in the two groups on PANSS score (t =-0.432,P ＞ 0.05),HAMD score (t =0.424,P ＞ 0.05).Post-treatment,there were significant differences between the two groups in PANSS score (t =18.780,P ＜ 0.05;t =12.256,P ＜ 0.05) and HAMD score (t =6.542,P ＜ 0.05;t =4.107,P ＜0.05).There were significant differences between the two groups in HAMD score (t =6.612,P ＜0.05).Conclusion Quetiapine can significantly improve the effects of positive and negative symptoms and depressive symptoms of schizophrenia patients with depression symptoms.Quetiapine combined with sertraline can improve the depressive symptoms of schizophrenia better compared with quetiapine.

RNA interference(RNAi),the first method of choice to suppress gene expression in vitro,is a conserved biologic response to double-stranded RNA that resulted in the sequence-specific silencing of target gene expression.Recently,more than 100 literatures reported synthetic small interfering RNAs in mammals.These reports demonstrated that RNAi is also a powerful tool for in vivo research and may become an effective therapeutic tool.This paper reviews the influencing factors and experimental design of in vivo use of RNAi.

Objective: To explore how to improve the ability of medical imaging professional internship integrated service, is to train talents for medical imaging specialty. Methods: The clinical practice requires students to seize the opportunity, through the participation of a large number of clinical practice, consolidate the theoretical knowledge, establish the correct clinical thinking, develop a good work ethic, improve the practical ability to work. Results: The importance of clinical practice throughout the important role of medical education, medical personnel training quality, competitive strength and student employment after graduation the actual ability to work, train more professional image. Conclusion:The medicine phantom study specialized is an emerging medicine specialty, should strengthen the organization in the clinical practice teaching important stage to manage, arranges various branches reasonably the practice time, emphasized the fundamental training, sharpens the generalized analysis ability, trains the qualified talented person.

Objective To observe the expressional changes of pro nerve growth factor(proNGF)apoptosis pro-signal factors after cerebral ischemia and reperfusion and discuss the protective effect of mild hypothermia on the brain injury. Methods The randomly chosen female SD rats weighing(220±10)g were divided into normal control group(Group A),cerebral isehemia and reperfusion group (Group B)and mild hypothermia group(Group C).Groups B and C were divided into 3,6 and 9 hours subgroups(eight rats per group).TUNEL methods was used to detect the apoptotic cells in the cortex after cerebral ischemia and reperfusion and treatment with mild hypothermia.The reverse transcription polymerase chain reaction(RT-PCR)was used to detect the expression changes of proNGF,Sortilin and P75gene in the cortex. Results (1)The apoptotic cells were increased with time in the Group B(P<0.05)and were more than those in the Group C in the same time point(P<0.05).(2)There found expression of all factors at all time points in three groups,which was increased with time(P<0.05).(3)The content of every factor at each time point in the Group C was less than that in the Group B(P<0.05). Conclusions (1)Mild hypothermia can decrease the apoptosis after ischemia and reperfusion injury.(2)The cell apoptosis induced by proNGF plays a very important role in the COUrse of cerebral ischemia and reperfusion injury.(3)Mild hypothermia can decrease the expression of apoptosis pro-signal to alleviate the cell apoptosis and protect the brain from ischemia and reperfusion.

OBJECTIVE:To observe the clinical efficacy and safety of amlodipine besylate combined with lisinopril and hydro-chlorothiazide,atorvastatin in the treatment of severe primary hypertension complicating with carotid atherosclerosis. METHODS:90 patients with severe primary hypertension complicating with carotid atherosclerosis were divided into control group (45 cases) and observation group(45 cases)according to random lottery form. Both groups were given Atorvastatin calcium tablet 20 mg/time orally,qd;control group was additionally given Amlodipine besylate tablet 5 mg/time orally,qd;observation group was additional-ly given Lisinopril and hydrochlorothiazide tablet 10 mg/time orally,qd,on the basis of control group. Both groups were treated for 8 weeks. Clinical efficacies of 2 groups were compared as well as blood pressure level,IMT,PV of carotid atherosclerosis, hs-CRP,TNF-α before and after treatment. The occurrence of ADR was recorded. RESULTS:Total response rate of observation group was significantly higher than that of control group,with statistical significance (P<0.05). Before treatment,there were no significant differences in SBP,DBP,IMT,PV,hs-CRP and TNF-α level(P>0.05). After treatment,the levels of SBP,DBP, IMT,PV,hs-CRP and TNF-α level in 2 groups were significantly lower than before;the observation group was significantly lower than the control group,with statistical significance (P<0.05). There was no statistical significance in the incidence of ADR be-tween 2 groups (P>0.05). CONCLUSIONS:Amlodipine besylate combined with lisinopril and hydrochlorothiazide,atorvastatin in the treatment of primary hypertension complicating with carotid atherosclerosis can effectively control the blood pressure level, delay the progression process of carotid atherosclerosis,reduce the inflammatory reaction degree,but dose not increase the occur-rence of ADR with good safety.