1.Studies on dangerous factors causing child cerebral palsy
Chinese Journal of Rehabilitation Theory and Practice 2002;8(8):491-494
ObjectiveTo understand dangerous factors causing child cerebral palsy and try to diagnose and treat cerebral palsy early, and decrease the ratio of cripple.MethodsTo analyze if the occurrence, style or complication of cerebral palsy having a relation to dangerous factors such as sexes, birth weight, premature delivery, twins, neonatal asphyxia, infection of newborn, nuclear icterus, mother's age, virus infection in the duration of pregnancy, threatened abortion and family history of cerebral palsy.ResultsThe ration of male and female is 1.47∶1 in 146 cases of child cerebral palsy. Factors causing cerebral palsy are low birth weight (79.45%), premature delivery (64.38%), neonatal asphyxia (41.78%), threatened abortion (32.89%), twins (31.53%), infection of newborn (12.33%), nuclear icterus (6.16%), parturient with advanced age (3.42%), having infection history in the duration of pregnancy (2.74%), and family history of cerebral palsy (0.68%). Both styles and complications of cerebral palsy have a relation to dangerous factors.ConclusionsThe low birth weight, premature delivery, neonatal asphyxia, twins and threatened abortion all are higher dangerous factors causing child cerebral palsy. In order to abstain the occurrence of these dangerous factors, it is important to educate people and doctors recognizing all dangerous factors. It is also helpful to lower the ratio of cripple that regularly examining child with dangerous factors, discovering symptoms and complications of cerebral palsy in time, and diagnosing and treating cerebral palsy as soon as possible.
3.Association of ACTN3 gene R577X polymorphism and athletic performance of Uyghur nationality in Xinjiang.
En-Peng HE ; Xiao-Ming LIU ; Guo-Ying WANG
Chinese Journal of Applied Physiology 2014;30(2):140-141
Actinin
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genetics
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Adolescent
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Adult
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Asian Continental Ancestry Group
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genetics
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Athletes
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Athletic Performance
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China
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Ethnic Groups
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genetics
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Female
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Humans
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Male
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Polymorphism, Genetic
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Young Adult
4.The Imaging Diagnosis of Medullary Sponge Kidney
Yi HUANG ; Hongde HE ; Xiao FU ; Ying LIU
Journal of Practical Radiology 1996;0(04):-
Objective To explore the clinical value of imaging examinations of medullary sponge kidney with the literature reviewed.Methods The features of X-ray plain film (1 case),IVP (2 cases),B-mode US(3 cases) and CT images (9 cases) of medullary sponge kidney (MSK) in 11 cases were analysed retrospectively.Results X-ray plain film showed a cluster of round and oval high density images in renal papillae and renal medulla in one case one kidney.Collecting tubes were showed as like line,brush and sac like dilatation on IVP in 2 cases 3 kidneys.B-mode US revealed a cluster of high echo spots scattered in renal medulla in 3 cases 5 kidneys and sac like dilatation of collecting tubes in 2 cases 3 kidneys.CT images showed the stones of spongiform kidney scattered alone renal medulla in 9 cases 16 kidneys,while the stones covered by contrast media on enhanced CT images in 3 cases 5 kidneys,and enhanced stripes of high density projected from renal papillae to renal medulla.Conclusion X-ray plain film,IVP,B-made US and CT all can be used in diagnosing spongiform kidney.Plain film and IVP are yet the first selected methods and IVP is specific and direct in showing collecting tubes dilatation.B-mode US especially CT have a high showing rate of stone in spongiform kidney and can be helpful to evaluate the collecting tube dilatation.
5.Extraction Rates of Flavonoids from Ultrafine Powder vs.Fine Powder of Gleditsia sinensis
Pixian SHUI ; Xiaoling YANG ; Ying HE ; Shunhan XIAO
China Pharmacy 2001;0(12):-
OBJECTIVE:To compare the extraction yield of total flavonoids from fine powder vs.ultrafine powder of Gleditsia sinersis.METHODS:The absorbance was detected under a wavelength of 510 nm by ultraviolet spectrophotometry. The extraction rates of flavonoids from fine powder vs.ultrafine powder of Gleditsia sinersis were computed.RESULTS:The extraction rate of flavonoids from ultrafine powder was 29.1%higher than that from the fine powder of Gleditsia sinersis. CONCLUSION:The extraction rate of flavonoids was increased by superfine comminution.
6.Rapid Determination of Long-chain Aliphatic Aldehyde in Gutter Oil by Fluorescent Derivatization-High Performance Liquid Chromatography
Wan WANG ; Qingfeng YU ; Ying XIAO ; Hua HE
Chinese Journal of Analytical Chemistry 2017;45(5):770-776
Reuse of waste oil in cooking has been the social concern for long time, but until now there is no reliable method to identify the gutter oil.In this work, based on the generation of long-chain aliphatic aldehydes in the refinement of gutter oil, gutter oil and adulterate cooking oil were identified by determining hexanal, heptanal, octanal, nonanal and decanal in oil sample with high perfomance liquid chromatography (HPLC) method using O-(3-(9H-carbazol-9-yl)propyl)hydroxylamine as the fluorescent derivative reagent.At first, 10 μL of oil sample was dissolved in 200 μL of isopropanol, then reacted with O-(3-(9H-carbazol-9-yl)propyl)hydroxylamine to form the stable derivatives, extracted with acetonitrile and injected into HPLC for analysis.The derivatives were separated on a C18 column within 15 min with ACN-H2O (90∶10, V/V) as mobile phase.The fluorescence detector was set at λex/λem=292 nm/348 nm.The linear range of 5 kinds of long-chain aliphatic aldehydes was 0.01-1.00 μmol/L with limit of detection (LOD, S/N=3) of 0.05-0.10 nmol/L, and the spiked recoveries were 95.6%-101.4%.The results showed that the edible oils obtained from supermarket almost had no hexanal, heptanal, octanal, nonanal, decanal, but these aldehydes increased significantly in gutter oil.Thus the 5 kinds of long-chain aldehydes could be used as the indictor of gutter oil.Taking the advantage of good specificity, higher sensitivity, good accuracy and simplicity, the method was suitable for the rapid identification of gutter oil.
7.Use of an in vitro lipolysis model to evaluate type I lipid formulations.
Ying LIU ; Tao YI ; Di HUAN ; Lu XIAO ; Jikui HE
Acta Pharmaceutica Sinica 2010;45(10):1307-11
The distribution fate and solubilization behavior of indomethacin through the intestinal tract were investigated with in vitro lipolysis model, by comparing the Capmul MCM and Labrafil M 1944 CS type I lipid formulations. The results showed that the more favorable solubilization was in the aqueous digestion phase from each lipid formulations for indomethacin. The lipolysis rate and extent were decided with chemical constitution of the lipid excipients, which meant that less indomethacin was transferred from the long chain polar oil lipid solution into the aqueous digestion phase. Increasing the concentration of indomethacin in the lipid formualitons from a solution to a suspension led to a linear increase in the concentration of indomethacin attained in the aqueous digestion phase from lipid formulations. This study also implied that adverse effects of the lipolysis rate and extent on drug absorption were could be taken into consideration when screening lipid formulations. Lipid suspensions likely had better enhancement of drug absorption. Last, this study demonstrated that a potential basis for optimizing and assessing type I lipid formulations and also researching in vivo-in vitro correlations of lipid formulations were provided by an in vitro lipolysis model.
8.Establishment and evaluation of a dynamic in vitro intestinal absorption model of lipid formulations.
Ying LIU ; Tao YI ; Huan DI ; Lu XIAO ; Jikui HE
Acta Pharmaceutica Sinica 2011;46(8):983-9
A new dynamic in vitro intestinal absorption model for screening and evaluating lipid formulations was established by means of the characteristics of the intestinal digestion and absorption of the lipid formulations. This model was composed of two systems, including intestinal digestion and the intestinal tissue culture, which drew the evaluation method of intestinal absorption into the in vitro lipolysis model. The influence of several important model parameters such as Ca2+, D-glucose, K+ on the two systems of this model has been investigated. The results showed that increasing of Ca2+ concentration could be significantly conductive to intestinal digestion. The increasing of D-glucose concentration could stepped significantly down the decay of the intestinal activity. K+ was able to maintain intestinal activity, but the influence of different concentration levels on the decay of the intestinal activity was of no significant difference. Thus the model parameters were set up as follows: Ca2+ for 10 mmol x L(-1), D-glucose for 15 mmol x L(-1) and K+ for 5.5 mmol x L(-1). Type I lipid formulation was evaluated with this model, and there was a significant correlation between the absorption curve in vitro and absorption curve in vivo of rats (r = 0.995 6, P < 0.01). These results demonstrated that this model can be an attractive and great potential method for the screening, evaluating and predicting of the lipid formulations.
9.Optimization of novel self-microemulsifying mouth dissolving films by response surface methodology.
Lu XIAO ; Tao YI ; Ying LIU ; Di HUAN ; Jikui HE
Acta Pharmaceutica Sinica 2011;46(5):586-91
This paper report the development of a new dosage form - self-microemulsifying mouth dissolving films, which can improve the oral bioavailability of water insoluble drugs and have good compliance. A three factor, three-level Box-Behnken design was used for optimizing formulation, investigated the effect of amounts of microcrystalline cellulose, low-substituted hydroxypropyl cellulose and hypromellose on the weight, disintegration time, cumulative release of indomethacin after 2 min, microemulsified particle size and stretchability. Optimized self-microemulsifying mouth dissolving films could fast disintegrate in (17.09 +/- 0.72) s; obtain microemulsified particle size at (28.81 +/- 3.26) nm; and release in vitro at 2 min to (66.18 +/- 1.94)%. Self-microemulsifying mouth dissolving films with broad application prospects have good compliance, strong tensile and can be released rapidly in the mouth through fast self-microemulsifying.
10.Influence of silica on intestinal absorption of solid self-microemulsifying drug delivery systems.
Di HUAN ; Tao YI ; Ying LIU ; Lu XIAO ; Jikui HE
Acta Pharmaceutica Sinica 2011;46(4):466-71
Solid carriers had important effects on the properties of solid self-microemulsifying drug delivery systems (S-SMEDDS). In order to make the basis for further development of S-SMEDDS, the influences of silica on the absorption of S-SMEDDS were investigated. An in vitro lipolysis model was used to evaluate the influence of silica on self-microemulsifying drug delivery system digestion from intestinal tract. S-SMEDDS containing silica were prepared by extrusion/spheronization. The drug release and absorption were investigated. The results showed that lipolysis rate and drug concentration in aqueous phase after intestinal lipolysis both increased by adding silica, which was benefit to drug absorption. And silica was not benefit to absorption for slowing drug release. Consistently, there was no significant influence of silica on intestinal absorption. This study implied that the influences of silica on lipolysis rate and drug release were both amount dependent and it is suggested that silica could be used as the solid carrier but the proportion needs to be optimized.