Child ; Evidence-Based Medicine ; Humans ; Nephrotic Syndrome ; diagnosis ; etiology ; therapy ; Practice Guidelines as Topic ; Recurrence

OBJECTIVE: To prepare aminophylline patches and study the pharmacokinetic characteristics in rabbits after application on navel. METHODS: Aminophylline patches were prepared by hot-envelop method. Modified Franz diffusion cells were employed to screen permeation enhancers with excised rat abdomen skins as diffusion barrier. The concentration of aminophylline in rabbit plasma was determined by HPLC after aminophylline solution was irrigated intragastrically and the aminophylline patches were applied on notum and navel, respectively. Pharmacokinetic parameters were calculated and the pharmacokinetic profiles were characterized by comparing the above three groups with statistical analysis. RESULTS: Based on the excised rat skin permeation test, 3% menthol-propanediol (1: 1) mixture was the optimal permeation enhancer with a steady state permeation rate of (9.08 ± 0.21) μg · cm-2 · h-1. The main pharmacokinetic parameters of, notum application group and navel application group were as follows: ρmax were (13.42 ± 1.10), (4.53 ± 0.39) and (5.77 ± 0.44) μg · mL-1 and tmax(1.83 ± 0.29), (5.67 ± 0.58) and (4.33 ± 0.58) h, AUC0→t, (47.65 ± 3.46), (31.65 ± 4.11) and (39.97 ± 3.14) μg · h · mL-1, t1/2 (1. 90 ± 0.30), (2.45 ± 0.07) and (1.90 ± 0.06) h, Ka(2.01 ± 0.55), (0.33 ± 0.02) and (0.55 ± 0.04) h-1, tlag were (0.19 ± 0.04), (0.59 ± 0.03) and (0.32 ± 0.19) h, respectively. The relative bioavailabilities of aminophylline after notum and navel application were (67.41 ± 19.11)% and (84.81 ± 18.03)% respectively compared with intragastrical irrigation group. CONCLUSION: The preparation process of aminophylline patches with desirable skin permeation property is practicable. Aminophylline patches are able to realize sustained-drug release and have higher bioavailability after navel application compared with notum application.

Background At present,researches about retinitis and acquired immunodeficiency syndrome (AIDS) mainly focus on observation and analysis of the cytomegalovirus (CMV)-induced ocular complication.To screen the effective drugs is very important for the treatment of AIDS-related CMV-induced retinitis.Objective This study was to describe the clinical features,diagnosis and treatment outcome of CMV-induced retinitis with BAY 38-4766 and evaluate the relationship between CMV retinitis and AIDS.Methods This was a case observational study.A total of 154 eyes of 84 patients with CMV retinitis and AIDS were enrolled in this study.Before the definitive diagnosis of CMV retinitis,the AIDS course of these patients were 4-26 months.In the initial examination,the visual acuity ranged from finger counting to 0.4,and the number of CD4+ T-lymphocyte was 0-30 cells/μl.The survival time in the patients ranged from 3 weeks to 18 months.BAY 38-4766 was used in 117 eyes of 62 patients,and 102 eyes of 53 patients showed the srinked of retinal lesion and improvement of vision (0.1-0.7).BAY 38-4766 was used to treat the CMV retinitis in 117 eyes of 62 patients with the initial intravenous dose of 5 mg/kg,twice per day for consecutive 2 weeks and followed by oral dose 1 gram per day.The follow-up duration was 2 weeks to 18 months.The fundus feature,visual acuity and CD4+ T-lymphocyte counts were analyzed.This study proposal was approved by Ethic Committee of the 474th Hospital of PLA,and written informed consent was obtained from each patient prior to entering this study.Results The numbers of CD4+T-lymphocytes increased to 12-402 eells/μl after administration of BAY 38-4766.The CMV retinitis aggravated and the vision decreased in the untreated 22 patients with the CD4+T-lymphocytes 0-30 cells/μl.Conclusions CMV retinitis is the most common intraocular complication in patients with AIDS.Diagnosis of CMV retinitis is based on the characteristics of necrotizing retinitis,which is typically associated with retinal hemorrhage and vasculitis.BAY 38-4766 is an effective drug for the treatment of CMV retinitis.

Objective To investigate the clinical and MR features of fungal encephalopyosis and fungal granuloma.Methods The clinical and MR data of 10 cases with fungal encephalopyosis and fungal granuloma confirmed by surgical pathology or clinical serum were analyzed retrospectively.Then we analyzed the clinical conditions,MR signals,lesion enhancement,DWI and MRS performance characteristics of the 10 cases.Results Six cases were fungal encephalopyosis,among which 2 cases occurred in the sella turcica after surgery which located in and above the sella turcica.2 cases occurred in the frontal lobe after frontal surgery and 1 case of them was multiple encephalopyosis.2 cases of encephalopyosis without operation history were located in the left frontal lobe and right cerebellum respectively.The abscess walls of these cases were thin and showed high tension.Furthermore,it had annular significant signal enhancement and high signal in DWI scan.One case of huge fungal granuloma located in the frontal lobe and into the sinuses which showed uneven signal enhancement. The Cho level was significantly increased.Three cases of cryptococcal granuloma showed multiple lesions located in the bilateral basal ganglia region and 2 out of them accompanied with cephalomeningitis.Conclusion The MR performance of fungal encephalopyosis was quite similar with bacterial brain abscesses,which makes the differential diagnosis difficult.The brain fungal granuloma MRS may display a significant increase of Cho level which might be related with gliosis.It shows certain characteristics of brain MR performance of cryptococcal granuloma which are multiple lesions,preferential distribution of basal ganglia region and accompanying cephalomeningitis.

The present study aims to predict the action targets of antidepressant active ingredients of Xiaoyaosan to understand the "multi-components, multi-targets and multi-pathways" mechanism. Using network pharmacology, the reported antidepressant active ingredients in Xiaoyaosan (saikosaponin A, saikosaponin C, saikosaponin D, ferulic acid, Z-ligustilide, atractylenolide I, atractylenolide II, atractylenolide III, paeoniflorin, albiflorin, liquiritin, glycyrrhizic acid and pachymic acid), were used to predict the targets of main active ingredients of Xiaoyaosan according to reversed pharmacophore matching method. The prediction was made via screening of the antidepressive drug targets approved by FDA in the DrugBank database and annotating the information of targets with the aid of MAS 3.0 biological molecular function software. The Cytoscape software was used to construct the Xiaoyaosan ingredients-targets-pathways network. The network analysis indicates that the active ingredients in Xiaoyaosan involve 25 targets in the energy metabolism-immune-signal transmutation relevant biological processes. The antidepressant effect of Xiaoyaosan reflects the features of traditional Chinese medicine in multi-components, multi-targets and multi-pathways. This research provides a scientific basis for elucidation of the antidepressant pharmacological mechanism of Xiaoyaosan.
Antidepressive Agents ; pharmacology ; Benzoates ; Bridged-Ring Compounds ; Coumaric Acids ; Drug Evaluation, Preclinical ; Drugs, Chinese Herbal ; pharmacology ; Flavanones ; Glucosides ; Glycyrrhizic Acid ; Lactones ; Medicine, Chinese Traditional ; Monoterpenes ; Sesquiterpenes ; Software

Objective To investigate the methods of isolation and culture in vitro and detect the surface markers of human umbilical cord mesenchymal stem cells.Methods Human umbilical cord Wharton' s jelly was separated and cut up as small as possible,and then cultured with α-MEM.Human umbilical cord mesenchymal stem cells could be obtained by culturing the tissue block adhered the bottle wall.And the cells were passaged at a certain density.The surface markers of human umbilical cord mesenchymal stem cells were detected by FACS when the cells were in Generation Three.Results Human umbilical cord mesenchymal stem cells were obtained from Wharton' s jelly conveniently,with fibroblast shape and stable proliferation and passage.CD29,CD44,CD105 were strongly expressed on human umbilical cord mesenchymal stem cells.But CD45,CD34,HLA-DR,HLA-G,CD80,CDs6 were not expressed.Conclusion Human umbilical cord mesenchymal stem cells can be obtained effectively from the culture of the tissue block,which provides a rich source of cells for tissue engineering.

BACKGROUND:Existing evidence has shown that xenogeneic bone derived graft materials have the ability to repair bone defects, but little report is on the comparison of composition of xenogeneic bone and human bone.
OBJECTIVE:To analyze the chemical composition, mineral phase, calcium and phosphorus contents, total protein contents, and appearance of the cancel ous bones of the tibia from pig, bovine and human.
METHODS:Cancel ous bones of the tibia from pig, Banna miniature pig, bovine, young and old people were cut into bone particles of 0.5 cm×0.5 cm×0.5 cm. After degreasing or drying treatment, chemical composition, mineral phase, calcium and phosphorus contents, total protein contents of bone particles were detected using Fourier transform infrared spectroscopy, X-ray diffraction, plasma emission spectroscopy, scanning electron microscopy, and Kjeldahl method, respectively. Nano Measurer 1.2 and Photoshop cs6 were used to measure pore diameter and porosity rate based on the results of scanning electron microscope.
RESULTS AND CONCLUSION:The main inorganic phase of five kinds of cancel ous bones was hydroxyapatite and the main chemical composition was phosphate and carbonate. The calcium content of the bovine cancel ous bonewas lower than that of the other cancel ous bones (P<0.05) and the phosphorus content of the cacel ous bone of young man was higher than that of the pig and bovine cancel ous bones (P<0.01). The total protein content in the cancel ous bones of normal pig and Banna miniature pig was higher than that in the other three kinds of cancel ous bones (P<0.05). The pore diameter of five kinds of cancel ous bones was 400 to 600μm and the porosity rate was 60%to 70%. Moreover, the porosity rate of the bovine cancel ous bone was the highest. Therefore, we conclude that there are some certain differences in the organic and inorganic components of the pig or bovine cancel ous bones as compared with humans.

Objective To analyze the distribution characteristics of Pseudomonas aeruginosa and Acinetobacter baumannii ,and to investigate the changing pattern of antimicrobial resistance of these strains isolated during 2012 - 2014 .Methods Strains of Pseud‐omonas aeruginosa and Acinetobacter baumannii isolated from January 2012 to December 2014 were collected .Antimicrobial suscep‐tibility of clinical isolates was tested by Kirby‐Bauer method .Results In the past three years ,214 strains of Pseudomonas aerugino‐sa and 347 strains of Acinetobacter baumannii were isolated .The nosocomial infection rate of Pseudomonas aeruginosa decreased year by year ,while the Acinetobacter baumannii ′s increased .Most strains were isolated from sputum ,wound secretion and urine . The strains of Pseudomonas aeruginosa and Acinetobacter baumannii were distributed in various departments of the hospital .The detection rates of these strains were the highest in ICU ,respectively 27 .6% and 34 .9% .Both the resistance rates of Pseudomonas aeruginosa to ceftazidime ,imipenem ,Amikacin and Acinetobacter baumannii to Piperacillin/Tazobactam and imipenem had in‐creased ,while the resistance rates of Acinetobacter baumannii to polymyxin B had decreased with each passing year .Conclusion Pseudomonas aeruginosa and Acinetobacter baumannii causes severe nosocomial infections and the antimicrobial resistance rates in‐creased ,especially the resistance rates to carbapenem are becoming more higher in recent years .Acinetobacter baumannii shows strong antibacterial activity in vitro to Polymyxin B .Therefore ,antimicrobial resistance surveillance should be strengthened to direct rational use of antibiotics .

Adult ; Bronchoalveolar Lavage ; methods ; Female ; Humans ; Male ; Middle Aged ; Pneumoconiosis ; therapy ; Respiration, Artificial ; Young Adult

AIDS-Related Opportunistic Infections ; complications ; microbiology ; Acquired Immunodeficiency Syndrome ; complications ; microbiology ; Adult ; Humans ; Male ; Penicillium ; pathogenicity ; Pharyngeal Neoplasms ; complications ; microbiology ; Pharynx ; microbiology ; pathology