Objective To determine the content of hesperidin in Weifukang capsules by HPLC,and to establish the quality standard of Weifukang.Methods HPLC method was performed on C18 column(4.6 ?200 mm,5 ?m).The mobile phase consisted of acetonitrile-sodium dihydrogen phosphate(0.05 mol/L)-phosphoric acid(200 ∶800 ∶0.5).The flow rate was 1.0 mL/min,column temperature was 25 ℃,and the detection wavelength was 283 nm.Results Hesperidin was linear at the range of 0.38 ?g～1.90 ?g(r=0.999 2)the mean recovery rate was 97.88 %,and RSD was 1.69 %.Conclusion This method is effective and reproducible and provides a basis for the quality control of Weifukang capsules.

For the requirements of social development,the medical model has changed from the medical model of organism to the model that of society-mentality-organisms. Thus,pediatrician must change old ideas and old model of thinking,improve knowlege structure and reform medical education model.

Azathioprine(AZA) and 6-mercaptopurine(6-MP) have a well-established effect as an immunosuppressive agent for inflammatory bowel disease(IBD),Myelosuppression is the most serious side effect during treatment.Thiopurine methyltransferase(TPMT) plays an important role in the metabolism of 6-MP. This article reviews the literature on the role of TPMT measurement prior to treatment of IBD with AZA/6-MP.

Objective To investigate clinical features,diagnosis and treatment of congenital adrenal hyperplasia (CAH) and to improve the knowledge of 21-hydroxylase deficiency form in CAH.Methods Ninteen neonatal CAH cases admitted to the neonatal intensive care unit of Shenzhen Children's Hospital from Jan 2004 to Aug 2011 were reviewed retrospectively.According to the early clinical manifestations,the serum levels of 17-hydroxyprogesterone,testosterone,progesterone,cortisol and adrenocorticotropic hormone (ACTH),early diagnosis was drawn and they were given to the glucocorticoid therapy.The alterations of blood sodium and potassium were compared before and after glucocorticoid therapy.Results Fourteen cases of 21-hydroxylase deficiency were salt-losing form who all were complicated with adrenal crisis and five cases were simple virilizing form.All CAH newborns(19 cases) appeared dark color of skin and mucosa.Fifteen cases had resistence to milk,poor response and feeding problem.The weight of eight cases at admission were lower than birth weight.Five cases suffered from repeating vomiting and diarrhea.After glucocorticoid therapy,there were significant improvement of hyponatremia[(110.2 ±9.5) mmol/L vs (138.7 ±5.2) mmol/L] and hyperkalemia[(7.40 ± 1.59) mmol/L vs (4.40 ±0.69) mmol/L] (P both ＜0.05).Conclusion We should raise the knowledge and level of diagnosis of neonatal CAH.We should diagnose the salt-losing form of 21 hydroxylase deficiency which is highly complicated with adrenal crisis through specific clinical manifestations and necessary biochemical assay as early as possible.The glucosteroid therapy is effective.

Delirium is a common disorder in aged people.Although it is in poor prognosis,delirium still has been under-recognized and inappropriately evaluated and treated.The clinical aspects of delirium on epidemiology,diagnosis,risk and precipitating factors,prevention and treatment were introduced in this paper.

Objective To summarize the strategies of nutritional support for patients with hyperlipidemic acute pancreatitis (HLAP). Methods The clinical data of six HLAP patients who were treated in our department from January 1998 to December 2009 were retrospectively reviewed. Results The disease conditions of all patients were improved after fasting and early nutritional support and lipid-lowering treatment. Three cases with severe HLAP received enteral nutrition via a nasojejunal tube. Another three patients with milder HLAP obtained low-fat diet and orally administered lipid-lowering drugs. The plasma triglyceride levels decreased from (25.30 ± 20. 48 ) mmol/L to (5.41 ±4.55) mmol/L. No relapse was noted during follow-up (range: 3 -24 months). Conclusions The approaches of nutritional support for HLAP patients should be customized based on the specific disease conditions,and the enteral nutrition and lipid-lowering drugs should be reasonably and carefully designed and applied. For severe HLAP, nasojejunal tube should be maintained in the early stage to ensure the application of enteral nutrition and lipid-lowering drugs, protect the integrity of gut mucosal barrier, and decrease the fluctuation of blood glucose.

BACKGROUND:Construction of tissue engineering adult cardiac myocytes has been a new research hotspot in cardiovascular fields.
OBJECTIVE:To explore a simple, fast method for the separation of adult rat cardiomyocytes, and preliminarily explore the construction methods of tissue engineering adult cardiac myocytes.
METHODS:Segmented enzymatic digestion method was used to isolate cardiac myocytes from adult rats. Subsequently, cardiac myocytes were transfected with adenovirus and liposome-mediated red fluorescent protein gene. Construction efficiency of tissue engineering cells was qualified using inverted fluorescence microscopy and flow cytometry. Final y, cardiac myocytes were transfected with adenovirus-mediated hypoxia-inducible factor-1a, and the expression of hypoxia-inducible factor-1a was examined by western blot analysis.
RESULTS AND CONCLUSION:A lot of cardiac myocytes were col ected using the segmented enzyme digestion method. Flow cytometric analysis showed that the survival of adult cardiomyocytes was (87.03±0.70)%. Compared with liposomal transfection (transfection efficiency was 0), adenovirus infection efficiency was (70.31± 1.39)%, and the cells expressed red fluorescence under fluorescence microscope. After 4 days of adenovirus infection, transfected cells expressed hypoxia-inducible factor-1a protein. These results showed that segmented enzyme digestion is a fast way to isolate adult cardiac myocytes, and recombinant adenovirus vector is a good vector to transfect cardiac myocytes.

Comprehensive geriatric assessment (CGA) conducts comprehensive assessment of many aspects of health and well-being of an older patient including medical,functional,nutritional,psychiatric and behavioral issues and needs as well as family and social support.CGA is typically conducted by a multidisciplinary team led by a geriatrician.Based on the CGA findings,appropriate recommendations are provided to the patient and family.This paper introduces the CGA concept and its content,targeted population,and implementation methods.It will also describe clinical studies focusing on the effectiveness and utility of CGA.

Proteome is defined as all proteins expressed in a cell, a tissue or an organism. Proteomics, a science of understanding the life activity law at the whole protein level, takes proteome as a research object; it is also a scientific method for quantitative detection of one or more protein populations or proteomes in a cell or tissue. Cerebral ischemic preconditioning has been one of the research hotspots in the field of neuroscience for decades. Its neuroprotec-five mechanism is associated with the changes of protein expression levels after cerebral ischemia, Therefore, proteomics has become more and more important in its mechanism study. This article mainly presents the major techniques of proteomics and their application in the studies of cerebral ischemic preconditioning.

Objective To investigate the changes and clinical significance of cerebrospinal fluid (CSF) non-protein-bound iron and malondialdehyde(MDA) in preterm infants with severe intraventricular hemorrhage (IVH) after serial lumbar punctures.Methods Non-protein-bound iron and MDA of CSF in twenty severe IVH preterm infants with first and end lumbar puncture were examined respectively.The control samples were determined for once from first to second week after birth.Results Both Non-protein-bound iron and MDA levels of the first CSF sample in twenty severe IVH preterm infants were higher than that in control[(0.66±0.38)μmol/L vs (0.24±0.12)μmol/L(P<0.01);(1.21±0.41)μmol/L vs (0.89±0.35)μmol/L(P<0.05)].Non-protein-bound iron levels of first and end CSF sample in severe IVH with posthemorrhagic ventricular dilatation (PHVD) were both higher than those without PHVD [(0.75±0.34)μmol/L vs (0.54±0.31)μmol/L;(0.57±0.21)μmol/L vs (0.35±0.18)μmol/L](P<0.05).However,there was no significant difference in MDA levels between both groups.The levels of non-protein-bound iron of end CSF in severe IVH with and without PHVD were significantly lower than those of the first CSF samples (P<0.05),while,there was no significant difference in MDA levels between the end and first CSF samples.Conclusion The non-protein-bound iron and MDA of CSF in severe IVH preterm infants were both significantly increased,non-protein-bound iron and oxygen free radicals may be involved in the preterm brain injury.Serial lumbar punctures can lower the levels of non-protein-bound iron in CSF.