Animals ; Child ; China ; Dairy Products ; Diet ; Health Promotion ; methods ; Health Status ; Humans ; Nutritional Status ; Nutritive Value

Nonclinical evaluation of vaccines is an important part of innovative vaccine research and development. Information on vaccine efficacy and safety is obtained through nonclinical research to support the clinical development and licensure of the vaccine. In this paper, combined with existing vaccine evaluation experience, the strategies, considerations and concerns of vaccine nonclinical evaluation are summarized by consulting the relevant domestic and foreign literature and guidelines of vaccine nonclinical evaluation in recent years, so as to provide a reference for vaccine researchers. Because of the different characteristics and concerns of therapeutic vaccines, the discussion in this paper mainly focuses on innovative preventive vaccines.

Purpose:To compare old and new clinical staging of primary liver cancre. Methods:317 cases of primary liver cancer(PLC) patients,hospita lized and dead,were investigated retrospectively for overall median survival and survival after various therapies,according to various stages,and therapies and comparison among groups and test of median survival were carried out. Results:Survival in patients with new stage Ⅱa+Ⅱb or old Ⅱw ere significantly longer than newⅢa+Ⅲb or oldⅢ, but no significant differenc es were observed between new stageⅡa+Ⅱb and oldⅡ , or new stage Ⅲa+Ⅲb and oldⅢ. Median survival by new staging , decreased in peoper order from stageⅡ a ,Ⅱb , Ⅲa to Ⅲb respectively, significant different was found only between s tage Ⅲa and Ⅲb but not betweenⅡa andⅡb . Survival decreased respectively fr om interventional treatment ,systemic chemotherapy and palliative therapy;the in terventional treatment group did much better than the palliative group but no si milar differences were observed in the other groups. Conclusions:New clinical staging of PLC did not show significan t superiorly over the old one as judged by median survival.It can be questioned whether basing on largest diameter is less than 5/10 cm or more than 10 cm to di stinguish Ⅱa and Ⅱb is valid.Interventional treatment should be applied as soo n as possible to prolong survival whether it be the new or old clinical staging.

In recent years,research on carotid atherosclerosis has turned to the aspect of neovascularization in vulnerable plaques.The evaluation of neovascularization in plaques using contrast-enhanced ultrasonography has become one of the novel technologies to determine the plaque stability.This article reviews the principles of contrast-enhanced ultrasonography and its application in the evaluation of neovascularization in carotid atherosclerotic plaques and vulnerable plaques.

OBJECTIVE To monitor the use and return of disposable infusion device or injector.METHODS To make use of Microsoft Excel,design an applied software dealing with data input,formula edit,statistics calculation and analysis,and how to apply the software were introduced.RESULTS The information of the use and return of disposable infusion device or injector was automatically managed.Working efficiency was greatly improved.CONCLUSIONS The use and return of disposable infusion device or injector are effectively supervised since Microsoft Excel software is applied.

Objective To evaluate the mid-long term effects of hysteroscopic treatment of abnormal uterine bleeding(AUB).Methods A total of 432 patients admitted from January 2002 to November 2005 with AUB were treated with hysteroscopy.All the patients were followed for at least 12 months.Among the 432 patients,391 were diagnosed as having benign lesions,including endometrial polyp in 96 patients(22.2%),submucous myoma in 38 patients(8.8%),and endometrial hyperplasia in 257 patients(59.5%),receiving transcervical myoma resection or transcervical endometrium resection.The other 41 patients were diagnosed as having stage Ⅰ endometrial carcinoma,and a total hysterectomy and bilateral adnexectomy with selective pelvic lymphadenectomy was performed.Results All the operations were successfully completed,without uterine perforation or other complications.During a follow-up of 12～57 months(mean,39 months) in the 391 patients with benign lesions,amenorrhea was found in 63 patients(16.1%,63/391),hypomenorrhea( 1.5 cm in 8 patients,and a second hysteroscopic endometrial resection was given at 5～19 months after first operation.All the 8 patients were further followed for 18～36 months,with findings of amenorrhea in 5 of them and hypomenorrhea in 3.All the 41 patients with stage Ⅰ endometrial carcinoma survived without recurrence during a follow-up period for 26～41 months(mean,38 months).Conclusions Hysteroscopic treatment can be the first choice for treating non-malignant AUB.Pre-operational pathological examination and ultrasonography can enhance the safety and efficacy of the operation.

Objective To evaluate the mid-long term effects of laparoscopic treatment of ovarian endometriosis cysts.Methods Clinical data of 209 cases of ovarian endometriosis cysts treated by laparoscopic operation from January 2002 to December 2005 were retrospectively analyzed.All the patients were followed for at least 12 months(12-54 months).There were 115 cases of unilateral ovarian cyst enucleation,62 cases of bilateral enucleation,11 cases of unilateral adnexectomy,and 21 cases of unilateral adnexectomy combined with contralateral cyst enucleation.Oral gestrinone was administrated in patients without childbearing intentions,while in patients demanding a child,no drug was given and an early pregnancy was encouraged.Results Conversions to open surgery were required in 7 cases.No complications occurred.Ovarian endometriosis cysts recurred in 17 cases(8.1%),including 7 cases of stage Ⅲendometriosis and 10 cases of stage Ⅳ endometriosis.Of the 35 cases of infertility,intrauterine pregnancy was obtained in 16 cases,with a pregnancy rate of 45.7%.The pregnancy occurred at 4-29 months after operation(within 2 years in 10 cases).Of the 157 cases of dysmenorrhea,a complete relief was achieved in 95 cases(60.5%)and an improvement was obtained in 62 cases(39.5%).Conclusions Laparoscopic treatment is suitable for all stages of ovarian endometriosis cysts.Postoperative drug administration and long-term follow-up are necessary to lower the recurrence rate.

This paper summarized the problems of medical informationization from the perspective of ethics.While medical informationization brings about the benefits of the enhancement of information mobility and interac-tion,its negative impacts also cause the indifference of doctor-patient relationship and the leakage of privacy infor-mation.At the same time,to ensure real and effective information data is the basis for the development of informa-tionization.Finally,this paper put forward to save time using informationization,to improve the doctor-patient re-lationship with the advantages of convenient communication,to protect patients' privacy through information super-vision and encryption,and to establish data quality standards.

Objective To investigate the relationship between scattered or single lesion of acute cerebral infarction in middle cerebral artery territory on diffusion-weighted imaging (DWI) and stenosis of middle cerebral artery (MCA) or internal carotid artery (ICA). Methods With exclusion of cardioembolism, 73 consecutive patients with acute cerebral infarction of the unilateral MCA territory on DWI were analyzed. All patients got magnetic resonance imaging (MRI) and angiography (MRA) within 24 hours after onset, and 7 patients also had digital subtraction angiography (DSA). The patients were classified into single lesion group or scattered lesions group according to the DWI findings. The incidence of stenosis or occlusion of ipsolateral MCA, intracranial and extracranial ICA were compared between the two groups. Results 42 patients had scattered lesions and 31 patients had single lesion. The scattered-lesions group had a high incidence of ipsilateral extracranial ICA or MCA occlusion or severe stenosis ( 25.6%versus 0, x2 = 10.6, P = 0.001 ) and a high incidence of ipsilateral intracranial ICA or MCA moderate or mild stenosis (31.0% versus 9.7% ,x2 =4.717, P =0.03 ). A positive correlation was found between the scattered lesions and severe or multifocal stenosis of ipsilateral ICA and MCA ( OR: 13.7, 95% CI: 3.6 to 52.5). There was a low incidence of absence of extra- and intracranial stenosis on MRA or DSA in the scattered-lesions group ( 11.9% versus 32.3%, x2= 4.526, P = 0.033 ). A negative correlation was found between the scattered lesions and absence of large-artery stenosis ( OR: 0.284, 95% CI: 0.09 to 0.94).Conclusions ( 1 ) Patients with acute cerebral infarction and scattered lesions on DWI were more likely to suffer from stenosis or occlusion of ICA or MCA, especially over the extracranial ICA. (2) Patients with single lesion were less likely to have severe or multiple stenosis of MCA and ICA, indicating the relevance of small-vessel pathogenesis.

OBJECTIVE:Inhaled glucocorticoids(GC) are the first-line medicine for bronchial asthma during relieve phase, thereby this study was designed to explore if patient tends to suffer osteoporosis due to long term inhalation of glucocorticoids. DATA SOURCES:Literatures about GC and osteoporosis were computer-searched in Medline and Embase from January 1980 to December 2003, with the key word of " asthma, bone density, bone metabolism and inhaled glucocorticoids" and language limited to English.Meanwhile it was also computer-searched in CBM, CBM disc and manually searched in Chinese Journal of Clinical Rehabilitation between January 1990 and April 2004 with language limited to Chinese. DATA SELECTION: Literatures about the comparison of bone density and bone metabolic change between inhaled GC group and control group were consorted deleting randomized controlled trial(RCT) so as to look up the whole content of healthy controls;While patients in the treatment group received GC inhalation.Exclusive standards:obvious non-RCT. Quality assessment is mainly focused on the reality of data,the strictness of design and implementation,and the rationality of statistical management. DATA EXTRACTION:Totally 30 randomized and nonrandomized studies about the influence of inhaled GC on the bone density and bone metabolism of patients with asthma were referred to amongst which 18 studies were admitted with the other 12 excluded for similarity in content in 8 and Meta-analysis in 4. DATA SYNTHESIS:A total of 1 153 asthmatic patients in 18 studies were divided into GC inhalation group and non-inhalation control group for comparing the difference of bone density and/or bone metabolism between them. CONCLUSION:Although the results of studies on the influence of long-term inhaled GC on bone quantity were different, but there was still not enough evidence to demonstrate that osteoporosis was due to long-term GC inhalation.