OBJECTIVE:To establish the HPLC method for the content determination of cetirizine hydrochloride gel.METHODS:The assaying was conducted on a SinoChrom ODS-BP column with 0.02 mol?L-1 sodium dihydrogen phosphate-acetonitrile(60∶40)as mobile phase at a flow rate of 1.0 mL?min-1.The column temperature was 25 ℃;the detection wavelength was 231 nm and the sample size was 10 ?L.RESULTS:The linear concentration range of cetirizine hydrochloride gel was 0.100 4～4.016 0 ?g(r=0.999 9)with average recovery rate at 97.85%(RSD=1.57%).CONCLUSI-ON:The method is simple,accurate and reproducible,and it can be used for the quality control of cetirizine hydrochloride gel.

Objective To preparemicroRNA-34 a loaded liposome and evaluate the targeting efficiency for lung cancer stem cells and effect on the treatment of lung cancer. Method The liposomes were prepared by thin film hydration method. The particle size,Zeta potential and entrapment efficiency were evaluated. Stability of liposome in serum was evaluated. The efficiency of cellular uptake on lung cancer stem cells in vitro was evaluated. The anti-proliferation efficiency of miLPs-34 a was evaluated by MTT assay. Tumor spheroids were used to evaluate anti-tumor ability of miLPs-34 a. Lung cancer stem cells were used to build orthotopictumor model, which were used to evaluate the effect of anti-cancer. Results The particle diameter of the miLPs-34 a was (136.55±11.4) nm with the Zeta potential of (21.45±4.55) mV. The entrapment efficiency of microRNA-34 awas 94.6%.the results demonstrated that the liposomes could keep stable in 50%serum for 24 h. miLPs-34 a uptaken by lung cancer stem cells were 3.1 times higher than that of microRNA-34 a(P<0.01). The MTT assay confirmed strong inhibitory effect of miLPs-34 a than microRNA-34 a(P<0.01). the inhibition of tumor spheroid confirmed strong inhibitory effect of miLPs-34 a than microRNA-34 a(P<0.01). The anti-tumor of miLPs-34 a was much more effectively than microRNA-34 a(P<0.01).Conclusion the microRNA-34 a loaded liposome could target to lung cancer stem cells and inhibit the proliferation of lung cancer stem cell. MiLPs-34 a, as a new nanometer drug, has a special application value for the therapy of lung cancer stem cell.

Diphtheria is an ancient disease.Since the implementation of enhanced program of immunization by WHO in 1978,the global incidence of diphtheria decreased sharply.There were no diphtheria cases reported in recent years in China,but there were still diphtheria cases and outbreak reported in surrounding countries.It is necessary to strengthen the laboratory diagnosis of diphtheria in China to prevent the recurrence and for early detection of emergent and imported diphtheria cases.Here in this review,the laboratory diagnosis of diphtheria and its progress were summarized.

AIM: To study the chemical constituents of Elaeagnus pungens. METHODS: Chemical constituents were separated through chromatographic methods and their structures were elucidated by spectral analysis. RESULTS: Five compounds were isolated from the petroleum ether extract of leaves of Elaeagnus pungens Thunb.Their structures were elucidated as hentriantane(1),lupeol(2),?-sitosterol(3),oleanolic acid(4) and 3,5-dihydroxy4,7-dimethoxy flavone(5). CONCLUSION: Compounds hentriantane(1) and 3,5-dihydroxy-4,7-dimethoxyflavone(5) were isolated from this plant for the first time.

BACKGROUND:Traditional treatment of tibia and fibula fractures complicated with skin soft tissue defect is mainly external fixation, wound debridement and dressing plus skin graft or skin flap transplantation after the infection is control ed and granulation grow. This method is disadvantageous due to high cost, great pain, long hospitalization stay, infection and necrosis, even the possibility of amputation.
OBJECTIVE:To explore the clinical efficacy of vacuum sealing drainage (VSD) and external fixator in the treatment of tibia and fibula open fractmes complicated with skin defects.
METHODS:A total of 38 patients with severe open fractures of tibia and fibula complicated with skin defects were selected from Benxi Central Hospital between January 2009 and September 2013. The size of skin defects was more than 5 cm2. After external fixation, the patients underwent complete debridement and dressing, fol owed by VSD treatment for 5-7 days. After granulation tissue grew and the wound became fresh, the patients received intermedite thickness skin graft. And 15 cases treated without VSD were retrospectively selected, serving as control group. The infection control rate and wound healing time in the two groups were compared.
RESULTS AND CONCLUSION:After 5-7 days of VSD treatment, VSD dressings were removed, wound infection was control ed, local wound granulation tissue was fresh. Both the wound and fractures were healed wel , no osteomyelitis or amputation occurred. Among the involved 38 patients, 23 cases were cured, 12 cases were effective, and three cases were ineffective. The total effective rate showed significant differences compared with the control group (92%vs. 53%;P<0.05). VSD can completely remove the wound secretions and necrotic tissue, improve local microcirculation, eliminate the infection, VSD plus external fixator and skin grating is a simple and effective method in treatment of tibia and fibula open fractures with soft tissue defects.

"Yongling"oral liquid composed of Cordyceps miliaris and Ganoderma lucidum was prepared by biochemical means. By comparing three different formulations,it was found that the optimum ratio between C. miliaris and G. lucidum was 7:3,which presented the entire active principles in proper proportion while retaining the original natural color and flavor.The preparation is a high protein,low fat,nontoxic oral liquid with diversified therapeutic actions and devoid of side effects

C-reactive protein (CRP) is an acute phase reaction protein,which is very sensitive to the inflammatory reaction.Many studies have confirmed that CRP is closely correlated with ischemic stroke and atherosclerosis.However,studies on correlation between CRP and intracerebral hemorrhage are less.This article reviews the relationship between CRP and intracerebral hemorrhage.

Objective To study the risk factors for cognitive impaurment in obstructive sleep apnea-hypopnea syndrome (OSAHS) patients with ischemic stroke.Methods Three hundred and twenty-eight OSAHS patients with ischemic stroke were divided into cognitive impairment group (n=158) and cognitive impairment-free group (n=170) according to their MMSE score.The risk factors for their cognitive impairment were analyzed by multivariate logistic regression analysis and stratification analysis respectively.Results The blood glucose and lipid,AHI,LSaO2,infarction size and site,HIF-1 and Ngb level were significantly different between the two groups (P＜0.01).Multivariate logistic regression analysis showed that blood glucose and lipid,AHI,infarction site and Ngb level were the independent risk factors for cognitive impairment (OR=3.527,95％CI:1.559-7.983,P=0.002;OR=6.413,95 ％CI:2.766-14.865,P=0.000;OR=4.099,95％CI:1.694-9.918,P=0.002;OR=4.484,95％CI:1.950-10.310,P=0.000;OR=3.891,95 ％CI:1.759-8.606,P=0.001).Stratification analysis showed that high HIF-1 and Ngb levels were positively related with cognitive impairment in patients with AHI＞20 times/h,frontotemporal infarction,hyperglycosemia or hypoglycosemia,and dyslipidemia.Conclusion High HIF-1 and Ngb levels are independently related with cognitive impairment in OSAHS patients with ischemic stroke.

Treatment of senile diseases by Chinese patent medicine should prescribe according to physiological and pathological specialty of the aged. It's necessary for treatment according to syndrome differentiation associating with the disease,reasonable combination of drugs avoiding adverse reactions,gentle medicine character but not fierce,small medicine quantity but not great, the use of Chinese patent medicine mild and tonic used properly but not excessively.
Drugs, Chinese Herbal ; therapeutic use ; Geriatrics ; methods ; Humans ; Phytotherapy ; methods

At present, mesenchymal stem cell treatment mainly applies in local and systematic transplantation, gene therapy combining stem cells, as well as tissue engineering. Based on mesenchymal stem cells are easily separated, cultured, have potentials of fast proliferation, easy exogenous gene's induction and expression, and can maintain multi-differentiation potential throughout long-term culture in vitro, and the quite stable genetic background. Mesenchymal stem cells have widely application prospect in tissue engineering of ophthalmology. At present, domestic and foreign researches have had massive evidences that mesenchymal stem cells can differentiate into cornea and retina cells. The application of mesenchymal stem cells in the anterior eye is usually by dint of a kind of carrier, such as amniotic membrane, fibrin gel membrane and so on. Moreover, the temperature sensitive culture dish has made the non-carrier transplantation of ocular surface stem cells. The application of mesenchymal stem cells in the posterior eye mostly concentrates in seeking for the feasible treatment of retinitis pigmentosa. Researches are mature on mesenchymal stem cells as seed cells acting on damaged tissue in ocular repairs and regeneration. But its oncogenicity and the security are waiting for further solving.