Objective To observe histologic changes of human cytomegalovirus(hCMV)-infected explants of first trimester human placenta and expression of hCMV gene in the hCMV-infected explants, and investigate the mechanism of intrauterine transmission of hCMV from mother to fetus.Methods The first trimester placenta explants cultures were carried out, and they were infected with hCMV for 10 days. The expression of hCMV immediate early protein(IEP) 72-IEP86 were determined using indirect-immuno fluorescent assay, and in situ hybridization method was used to examine the hCMV late gene (LG)mRNA. For histologic evaluation of morphological changes in villi, transmission electron microscope was used.Results (1) Typical hCMV-induced lesions bearing hCMV IEP72-IEP86 were consistently localized in the trophoblast of covering placenta villi, interstitial cell and vascular endothelia cell 12 hours after infection, and were predominant in cytotrophoblast. (2) Replication of hCMV in placenta explants culture occurred from 12 hours to 24 hours and disappeared since 48 hours after infection with different concentrations of hCMV when examined by in situ hybridization. (3) Tissue integrity and viability of first trimester placenta explants were obtained in culture for 10 days and then explants were infected with different concentrations of hCMV 100 tissue culture infectious doses(TCID_ 50 ),200 TCID_ 50 and 300 TCID_ 50 , the progression of the infection was observed in the tissue that maintained its normal cellular organization under light microscope. But typical inflammation of cellular organization was observed under transmission electron microscope. Conclusions (1) A flash replication of hCMV in placental explants culture occurs; IEP72-IEP86 may be in intrauterine infection of hCMV for a long time. (2) There are pathological ultrastructure changes in hCMV-infected explants.

Objective To observe the effect of the rehabilitation garden on hemiplegic stroke patients. Methods 160 cases of cerebral vascular accident patients were randomized into observation group and control group. All patients were given conventional drug treatment and conventional rehabilitation training. The observation group was given the rehabilitation garden for rehabilitation training two times a day , each time 60 minutes. Results BBS, BI, FMA, HAMA and HAMD of The two groups of patients significantly improved. The improvement ofBBS and BI in observation group was better than that in control group (P < 0.05). HAMD and HAMA score inobservation group was significantly higher than that in control group (P < 0.01), the improvement in observationgroup is better than in control group (P < 0.01), the satisfaction rate in observation group is better than in controlgroup (P < 0.01), and the hospital stay period in observation group is better than in control group (P < 0.01).Conclusion The application of rehabilitation garden has a good effect on the rehabilitation effect of the hemiplegicstroke patients.

Described in the paper are contents and characteristics of building smart healthcare system at a research hospital,and practices of the hospital in exploring smart healthcare.Specific measures include staged building of an e-hospital emphasizing information security; closed-loop transformation with mobile and barcode technology for higher efficiency and patient safety;optimizing the service flow with smart interconnection to create an orderly outpatient environment; implementing healthcare regulations with information systems to ensure a homogeneous medical environment;and integrating the entire medical system to promote coordinated development of regional healthcare service. These measures help upgrade the information service effectiveness and quality of care of the hospital.

OBJECTIVE: To investigate the presence of vasculogenic mimicry in laryngeal squamous cell carcino- ma and explore its clinical significance. METHOD: The presence of vasculogenic mimicry and expression of endotheli- um-dependent vessel in 138 laryngeal squamous cell carcinomas cases were detected by the immunohistochemistry and tissue microarray. Metlab software was used to evaluate the relationship among vasculogenic mimicry, mi- crovessel density and clinic pathological parameters in laryngeal carcinoma. RESULT: We found vasculogenic mimicry in 32 (26.23%) of 122 laryngeal carcinoma samples. The mean of microvessel density is 12.61 per high-power field. The vasculogenic mimicry and expression of endothelium-dependent vessel were not significantly related to patient age or gender, tumor location, pathology grade, T stage or N stage (P > 0.05). However, the vasculo- genic mimicry and the mean of microvessel density were a little higher in patients older than 60, with poorly differ- entiated and patients with N₁₋₃ stage. Vasculogenic mimicry was positively correlatedwith microvessel density (r = 0.1927, P < 0.05). CONCLUSION Vasculogenic mimicry can occur in laryngeal carcinoma. Moreover, vasculogenic mimicry may be associated with recurrence and metastasis in laryngeal carcinoma.
Carcinoma, Squamous Cell ; pathology ; Endothelium, Vascular ; pathology ; Head and Neck Neoplasms ; pathology ; Humans ; Immunohistochemistry ; Laryngeal Neoplasms ; pathology ; Neoplasm Recurrence, Local ; Neovascularization, Pathologic ; Squamous Cell Carcinoma of Head and Neck

Cordyceps militaris is of significant economic value in medical care and food exploitation because of its many physiological activities. This paper reviews(1) the taxonomic position of its anamorph,(2) interesting culture ways,(3) strain degeneration and genetic variability,and(4) research progress in bioactive compounds and pharmacological functions.

OBJECTIVETo investigate the technological parameters of the purification process of total flavones from Smilax china with macroporous absorption resin.

METHODThe technical process for purification of total flavones with the optimum macroporous absorption resin was screened by yield of total flavones product.

RESULTThe D140 macroporous absorption resin had the best separating efficiency when the flavones content in the liquid was 0.5 g x mL(-1) equivalent to raw material, the volume of drug 18 BV (resin bad volume) with the adsorption-power 2 BV x h(-1), and the volume of 60% (mL x mL(-1)) ethanol as eluant 5-10 BV (resin bad volume) with desorption-power 1 BV x h(-1). The obtained flavones product has total flavones recovery rate of 84.72%.

CONCLUSIONThe treatment of regenerated resin is easy, this method is advisable.

Absorption ; Flavones ; chemistry ; isolation & purification ; Plants, Medicinal ; chemistry ; Resins, Synthetic ; chemistry ; Rhizome ; chemistry ; Smilax ; chemistry ; Technology, Pharmaceutical ; methods

OBJECTIVETo investigate the advantages and disadvantages of dual energy with dual-source computed tomography (CT) in cerebral angiography by comparing those of neuro-digital subtraction angiography (Neuro-DSA) .

METHODSTotally 300 patients with normal CT angiography (CTA) images underwent dual energy CT angiography (DE-CTA groups, n=200) and Neuro-DSA scan (Neuro-DSA groups, n=100) using dual source CT. The comparison of two scan approaches was based on image quality, radiation does, post-processing methods, and duration of scanning and subtraction.

RESULTSThe image quality of intracranial blood vessels in DE-CTA group showed no significant difference with that in Neuro-DSA group (P>0.05) , while the number of Grade I images was significantly higher than those of other three grades (P<0.01) . However, the effect of the skull base bone removal with Neuro-DSA is superior to DE-CTA (P<0.01) . The duration of scanning was significantly longer in DE-CTA group than in Neuro-DSA group (P<0.01) . However, the radiation dose, time of entire examination, and time of subtraction were significantly lower/shorter in DE-CTA group than in Neuro-DSA group (P<0.01) . The radiation dose of DE-CTA group is 26.3% lower than Neuro-DSA group.

CONCLUSIONSThe image quality of intracranial blood vessels with head DE-CTA is same as Neuro-DSA, while head DE-CTA has lower radiation doses and higher inspection efficiency than Neuro-DSA. However, the effect of the skull base bone removal needs to be improved.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Angiography, Digital Subtraction ; methods ; Cerebral Angiography ; methods ; Female ; Humans ; Image Processing, Computer-Assisted ; Male ; Middle Aged ; Radiation Dosage ; Sensitivity and Specificity ; Tomography, X-Ray Computed ; methods ; Young Adult

Ambroxol ; therapeutic use ; Dose-Response Relationship, Drug ; Female ; Humans ; Incidence ; Infant, Newborn ; Male ; Respiratory Distress Syndrome, Newborn ; epidemiology ; mortality ; prevention & control

In this study, modification technology by surface coating was used to improve the flowability of powder of Chinese herbs extracts. Seven kinds of powder of Chinese herbs extracts were coated with 1% silica nanoparticles using an under-driven Comil. The powder characteristics tester was used to evaluate the flowability of uncoated and coated powders. Surface morphology and particle size distribution of powders were compared by scanning electron microscope (SEM) and optical microscope. The powder hygroscopicity was also investigated. The results showed that, after modification, angle of repose, angle of spatula, compressibility and adhesiveness extremely decreased, and flowability index substantially increased, the powder flowability was significantly improved, especially Gegen and Dahuang extracts powders. Scanning electron microscopy images showed the distribution of silica nanoparticles on the host drug particle surfaces. There were no remarkable changes in the particle size distribution and hygroscopicity of all powders after coating. Therefore, Comilling for surface coating modification technology was an effective method to improve the flowability of Chinese herbs extracts and suggested a possible way forward to enhance the quality of Chinese drugs pharmaceutics in their study and manufacture.
Chemistry, Pharmaceutical ; methods ; Drugs, Chinese Herbal ; chemistry ; Nanoparticles ; chemistry ; Particle Size ; Powders ; chemistry ; Surface Properties

Objective To observe the variation of phosphatidylinositol-3 kinase (PI3K),protein kinase B (AKT),sodium iodide symporter (NIS) mRNA and protein expression in rat mammary tissues and serum insulin growth factor Ⅰ (IGF-1) under different iodine nutrition levels,and to study the role of PI3K-AKT signaling pathway in the process of mammary gland intaking iodine during lactation period.Methods Totally 130 Wistar rats (100 female rats,30 male rats) were randomly divided into five groups with 20 female rats in each group:①control group (NI):was feed with normal diet and iodine content 50 μg/L in deionized water;②low iodine group 1 (LI1 group):was feed with low iodine diet and deionized water;③low iodine group 2 (LI2):was feed with low iodine diet and iodine content 5 μg/L in deionized water;④high iodine group 1 (HI1 group):was feed with normal diet and iodine content 3 000 μg/L in deionized water;⑤high iodine group 2 (HI2):was feed with normal diet and iodine content 10 000 μg/L in deionized water.After feeding for 3 months,females were mated with male rats,then male rats were taken out and every female rat was feed individually.Urinary iodine level of rats in lactation period 10 days after giving birth was tested.Blood and mammary tissue samples of rats in lactation period were taken after killing them.Enzyme linked immunosorbent assay (ELISA) was used to detect serum IGF-1 level,real-time fluorescence quantification PCR to detect the mRNA expression of mammary gland PI3K,AKT and NIS,Western blotting to detect mammary gland PI3K,total AKT,phosphorylation AKT (p-AKT) and NIS protein expression.Results The medians urinary iodine of lactation period rats in LI1 and LI2 (3.16,6.36 μg/L) were significantly lower than that in NI group (162.59 μg/L),and were significantly higher in HI1 and HI2 (2 356.27,11 507.29 μg/L) than that in NI group.The differences were statistically significant (all P ＜ 0.01).Compared with control group [(8.84 ± 2.12) μg/L],the content of serum IGF-1 increased significantly in lactation period rats in LI1 and LI2 groups [(13.30 ± 2.37) and (10.90 ± 1.92) μg/L,all P＜ 0.01].The real-time fluorescence quantification PCR detection results indicated that the differences were statistically significant by comparing NIS,AKT,PI3K mRNA expression of the mammary tissues of lactation period rats in the five groups (F=14.916,36.477,14.994,all P＜ 0.01).Among them,NIS mRNA expression quantities in LI1 and LI2 groups (0.75 ± 0.40,0.89 ± 0.51) were significantly higher than that in NI group (0.53 ± 0.31),and significantly lower in HI2 group (0.30 ± 0.24) than that in NI group (P ＜ 0.05 or ＜ 0.01).AKT mRNA expression quantities in LI1 and LI2 groups (0.90 ± 0.19,0.64 ± 0.22) were significantly higher than that in NI group (0.43 ± 0.22),and significantly lower in HI2 group (0.29 ± 0.15) than that in NI group (P ＜ 0.05 or ＜ 0.01).PI3K mRNA expression quantity in LI1 group (0.85 ± 0.42) was significantly higher than that in NI group (0.50 ± 0.24),and significantly lower in HI2 group (0.28 ± 0.10) than that in NI group (all P ＜ 0.01).Western blot detection results indicated that the differences were statistically significant by comparing mammary gland NIS protein expression of lactation period rats in the five groups (F=4.510,P＜ 0.01).Among them,LI1 group (1.67 ± 0.97) was significantly higher than NI group (0.87 ± 0.43,P ＜ 0.05).The differences were statistically significant by comparing the p-AKT protein expression among groups (F =3.528,P ＜ 0.05).Among them,HI2 group (1.10 ± 0.30) was significantly higher than NI group (0.75 ± 0.23,P ＜0.05).The differences were not statistically significant by comparing total AKT and PI3K protein expression among groups (F =0.558,1.319,all P ＞ 0.05).Conclusion The inhibitory effect of PI3K-AKT signaling pathways on NIS in the mammary gland was weaker than the effect of iodine intake.But the expression of functional p-AKT was gradually increased with the increment of iodine intake,which had been presented inhibit effect on NIS expression in lactating mammary gland.