Objective Previous study found that ifbroblast growth factor-2(FGF2) expression was at a low level in bone marrow of children with aplastic anemia. In this study, we established a bone marrow failure animal model to investigate whether FGF2 is involved in bone marrow failure. Methods BALB/c mice were irradiated by 5.0 Gy ray, and then infused with 1×106 lymphocytes from allogeneic mice lymph node. Peripheral blood cells and bone marrow mononuclear cells counting and bone marrow pathology were done. FGF2 protein in bone marrow mononuclear cells was measured by ELISA. Results Compared with the control group, the counting of hemoglobin, white blood cell, platelet and bone marrow mononuclear cell in aplastic anemia mouse model were signiifcantly deceased (P<0.05). Moreover, FGF2 expression in aplastic anemia mouse model were signiifcantly reduced (P<0.05). Conclusions 5.0 Gy ray irradiation and then 1×106 lymphocyte infusion in mice can induce bone marrow failure similar to the features of aplastic anemia. The low expression of FGF2 in bone marrow of aplastic anemia patients may play an important role in the pathogenesis of aplastic anemia.

Objective To study the clinical characteristics and outcome of cytomegalovirus(CMV) infection in infants.Methods All data including time of infection,clinical characteristics,laboratory tests and outcome of CMV infections in hospitalized infants were collec-(ted) and analyzed from January,1994 to July,2004.Results In 87 infected infants,congenitally infected newborns,perinatal infection in infants and postnatal infection in infants accounted for 27.6%,62.0%,16.6%,respectively.CMV hepatitis was the most frequent type of disease with the incidence of 41.3%,in which the incidence of splenomegaly was 10.3%.Most of CMV hepatitis infants had a good prognosis with the improved rate 80.5%.Central nervous system abnormality(including abnormal intension of muscle,convulsion,ocular and hearing abnormalities) occurred only in congenital and perinatal infection with the incidence of 20.4%.Generalized infection,the incidence of congenital infection and perinatal infection was 16.7%,1.8%,respectively.It did not occur in postnatal infection.The mortality rate of congenital infection and perinatal infection were 12.5% and 1.85%,respectively.Conclusions CMV infection is the main cause of infant hepatitis and it can also cause neurologic sequelae.The outcome of generalized infection in congenital infection is bad and the mortality rate is high.

The objective of the study was to prepare and evaluate the quality of curcumin-piperinedual drug loaded self-microemulsifying drug delivery system(Cur-PIP-SMEDDS). Simplex lattice design was constructed using optimal oil phase, surfactant and co-surfactant concentration as independent variables, and the curcumin and piperine were used as model drugs to optimize Cur-PIP-SMEDDS formulation. In the present study, the drug loadings of curcumin and piperine, mean particle size of Cur-PIP-SMEDDS were made as indicators, and the experiment design, model building and response surface analysis were established using Design Expert 8. 06 software to optimize and verify the composition of SMEDDS formulation. The quality of Cur-PIP-SMEDDS was evaluated by observing the appearance status, transmission electron microscope micrographs and determining particle diameter, electric potential, drug entrapment efficiency and drug loading of it. As a result, the optimal formulation of SMEDDS was CapryoL 90-Cremophor RH40-TranscutoL HP (10:60:30). The appearance of Cur-PIP-SMEDDS remained clarified and transparent, and the microemulsion droplets appeared spherical without aggregation with uniform particle size distribution. The mean size of microemulsion droplet formed from Cur-PIP-SMEDDS was 15.33 nm, the drug loading of SMEDDS for Cur and PIP were 40.90 mg · g(-1) and 0.97 mg · g(-1), respectively, the drug entrapment efficiency were 94.98% and 90.96%, respectively. The results show that Cur-PIP-SMEDDS can increase the solubility and stability of curcumin significantly, in the expectation of enhancing the bioavailability of it. Taken together, these findings can provide the reference to a preferable choice of the Cur formulation and contribute to therapeutic application in clinical research.
Alkaloids ; chemistry ; Benzodioxoles ; chemistry ; Chemistry, Pharmaceutical ; methods ; Curcumin ; chemistry ; Drug Carriers ; chemistry ; Drug Combinations ; Drug Delivery Systems ; Drugs, Chinese Herbal ; chemistry ; Emulsions ; chemistry ; Methylmethacrylates ; chemistry ; Particle Size ; Piperidines ; chemistry ; Polystyrenes ; chemistry ; Polyunsaturated Alkamides ; chemistry

Adolescent ; Child ; Cord Blood Stem Cell Transplantation ; Female ; Flow Cytometry ; Humans ; Leukocyte Count ; Male ; Siblings ; Transplantation, Homologous ; immunology ; Treatment Outcome

This study aims to develop a method for determination of beta-elemene, curcumol, germacrone and neocurdione in the volatile oil of Curcuma phaeocaulis, and to provide the basis of the quality control method for the volatile oil of C. phaeocaulis and the related preparations. Based on GC-MS, the 4 main compounds were simultaneously determined, with the internal standard n-tridecane. The Agilent 19091S-433 column (0.25 microm x 250 microm x 30 m) was adopted at the temperature of 250 degrees C, the programmed temperature method (60 degrees C for 1 min, 5 degrees C x min x to 110 degrees C for 5 min, 1 degrees C x min(-1) to 140 degrees C, 5 degrees C x min(-1) to 160 degrees C, 10 degrees C x min(-1) to 240 degrees C) was used. Helium gas was used as the carrier gas at a constant flow rat of 1 mL x min(-1), with an injection volume of 1 RL. Mass spectra were taken at 70 eV; the ion-source temperature was 200 degrees C. The relation time and character acteristic ions for each target compound were determined by full scan mode and SIM, and m/z 85.1, 93.1, 121.1, 107.1 and 180.1 were the detection ions of n-tridecane, beta-elemene, curcumol, germacrone and neocurdione. As a result, beta-elemene, curcumol, germacrone and neocurdione were all detected with good separation. They were all in a good linear relationship within each concentration scope. The average recovery rates were in the range of 98.2%-101%. So, the method can be used to control the quality of the volatile of C. phaeocaulis Val. and the preparations related.
Acetic Acid ; chemistry ; Curcuma ; chemistry ; Drugs, Chinese Herbal ; analysis ; isolation & purification ; Gas Chromatography-Mass Spectrometry ; methods ; Oils, Volatile ; chemistry ; isolation & purification ; Plant Oils ; chemistry ; isolation & purification ; Sesquiterpenes ; analysis ; isolation & purification ; Sesquiterpenes, Germacrane ; analysis ; isolation & purification

OBJECTIVETo evaluate the cost-effectiveness and economic efficiency of integrated prevention of mother-to-child transmission (PMTCT) of HIV in four high-incidence counties.

METHODSData of local resource investment and total cost for PMTCT in 4 counties in China from 2003 to 2006 were collected. Cost analysis and cost-effectiveness analysis were conducted. Average costs of a confirmed HIV case, a prevented case and a disability-adjusted life-year (DALY) saving were calculated.

RESULTSAverage cost of identifying one HIV-infected mother was yen5512. Costs of a pediatric HIV case prevention and per DALY saving were yen46 747 and yen1870 ($231), respectively, based on the total cost perspective.

CONCLUSIONThe cost of integrated prevention of mother-to-child transmission of HIV was low. The PMTCT program was economical efficiency.

Acquired Immunodeficiency Syndrome ; prevention & control ; transmission ; Cost-Benefit Analysis ; Female ; Humans ; Infectious Disease Transmission, Vertical ; prevention & control ; Pregnancy ; Pregnancy Complications, Infectious ; prevention & control ; Universal Precautions ; economics

OBJECTIVETo study whether polymorphism of iNOS and eNOS genes is associated with portal hypertension in liver cirrhosis.

METHODSA case control study of 106 patients with liver cirrhosis due to HBV was performed in comparison with 108 controls using PCR-RFLP to detect iNOS promoter -969G --> C and eNOS exon7 894G --> T polymorphism.

RESULTSThe frequency of the C allele and GC genotype in the iNOS promoter -969G --> C was significantly higher in the portal hypertension group than in the control group. (P < 0.05). The frequency of the T allele and GT genotype in eNOS exon7 894G --> T was dramatically higher in the portal hypertension group than in the control group (P < 0.05). Multivariate logistic regression analysis revealed that iNOS polymorphism in iNOS promoter -969G --> C and eNOS exon7 894G --> T was an independent new risk factor for portal hypertension. We discovered that iNOS promoter -969G --> C led to an increase in its functional activity.

CONCLUSIONSThe polymorphism of iNOS promoter -969G --> C and eNOS exon7 894G --> T is associated with portal hypertension of liver cirrhosis, which is a new independent risk factor found related to the occurrence of portal hypertension. The polymorphism of iNOS promoter -969G --> C results in functional activity increase of the iNOS promoter.

Adult ; Female ; Hepatitis B, Chronic ; complications ; Humans ; Hypertension, Portal ; etiology ; genetics ; Liver Cirrhosis ; complications ; genetics ; Male ; Middle Aged ; Nitric Oxide Synthase Type II ; genetics ; Nitric Oxide Synthase Type III ; genetics ; Polymerase Chain Reaction ; Polymorphism, Genetic ; Polymorphism, Restriction Fragment Length ; Promoter Regions, Genetic ; genetics

BACKGROUNDTo establish a cohort for the study of risk factors of lung cancer, and to support the study of early biomarkers and prevention of lung cancer.

METHODSDesigned a special population-based prospectively dynamic cohort among radon- and arsenic-exposed tin miners aged 40 or more years old with at least 10 years of occupational exposure in Yunnan Province, P.R.China. The mass screenings with sputum cytology and chest X-ray were conducted annually. The baseline information was collected for assessing demographic characteristics and risk factors. The multiple sputum specimens, chest radiographs and numerous biologic specimens have been collected and stored.

RESULTSFrom 1992-1999, 9143 miners have been enrolled and 460 new cases of lung cancer have been found. There had 47655 person-time chest radiographs and 46625 person-time sputum cytology among the cohort in 8 years. The relative risks of age-adjusted exposure to chronic bronchitis, silicosis, and tobacco were 1.73, 1.46, and 1.32 respectively.

CONCLUSIONSA cohort of unique occupationally-exposed tin miners with an extensive biologic specimen repository and data bank has been successfully established. Although occupational exposures are the predominant risk factors among the high risk miners, lung cancer risk is also associated with chronic obstructive lung disease (chronic bronchitis and silicosis) and a number of measures of exposure to tobacco smoke, including early age of first use, duration, and cumulative exposure.

OBJECTIVETo prove if it is possible for using the shattering extraction with solvent to extract ingredients of traditional Chinese medicine.

METHODThe shattering extraction with solvent, the refluxing extraction and the ultrasonic extraction were used to extract paeoniflorin from Radix Paeoniae rubra, and to extract baicalein from Radix Scutellariae, and to extract chlorogenic acid from Flos lonicerae japonicae respectively, using ingredient content and extract yield as the measuring indexes.

RESULTThe content of each every ingredient obviously higher by using shattering extraction with solvent than using refluxing extraction or the ultrasonic extraction.

CONCLUSIONThe shattering extraction with solvent is a high efficiency, simple and quick extraction. It may be used to extract the ingredient of three kinds of traditional Chinese medicine.

Benzoates ; isolation & purification ; Bridged-Ring Compounds ; isolation & purification ; Chemical Fractionation ; methods ; Chlorogenic Acid ; isolation & purification ; Drugs, Chinese Herbal ; chemistry ; Flavanones ; isolation & purification ; Glucosides ; isolation & purification ; Monoterpenes ; Solvents ; chemistry ; Time Factors

OBJECTIVETo study neuroprotective effects of astragulus membraneaceus on a neonatal rat hippocampus of hypoxia-ischemia brain damage (HIBD).

METHODThe neonatal hypoxia-ischemia model was established with 7-day-old rat pups. Brain injury was examined by neuron death rate in the hippocampal CA1 area. Caspase-3 (cysteinyl aspartate-specific proteinase) mRNA expression in ipsilateral hippocampal was measured by half-quantitative reverse transcription and polymerization chain reaction (RT-PCR). 90-day-old rats were used in tri-equal-arm maze to observe discrimination learning ability. Sham, model and astragulus-membraneaceus treated groups were set up.

RESULTIn model group, caspase-3 mRNA showed an increase at 6h, with maximum arrivimg at 24 h - 48 h after HI. In astragulus-membraneaceus treated group, neurons death rate and caspase-3 mRNA were significantly reduced by astragulus membraneaceus, and discrimination learning ability of developed rats were improved obviously.

CONCLUSIONAstragulus membraneaceus has a strong protective effect on neuronal damage in the immature rat hippocampus, which is ralated reducing caspase-3 expression.

Animals ; Animals, Newborn ; Apoptosis ; drug effects ; Astragalus membranaceus ; chemistry ; Caspase 3 ; Caspases ; biosynthesis ; genetics ; Cell Death ; drug effects ; Discrimination Learning ; drug effects ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Female ; Hippocampus ; enzymology ; pathology ; Hypoxia-Ischemia, Brain ; enzymology ; pathology ; Male ; Neurons ; pathology ; Neuroprotective Agents ; isolation & purification ; pharmacology ; RNA, Messenger ; biosynthesis ; genetics ; Rats ; Rats, Sprague-Dawley