1.Dynamic Effect Analysis on the Gap of Different Types of Health between Urban and Rural Medical and Health Resource Allocation:Further Investigation Based on State Space Model
Lin YANG ; Qian CHENG ; Yuan LI
Chinese Health Economics 2014;(7):33-36
To investigate different effects of fiscal health expenditure, household spending on health and social health expenditure on narrowing the gap between urban and rural health resource allocation. Methods: With the relevant data of China’ s medical and health through 1985-2011 years, taking methodology of the state space model to estimate the varying-time elasticity of different types of expenditures on urban and rural health resource allocation gap. Results: For narrowing the gap, household health expenditure played the leading role, fiscal health expenditure played smaller role and the social health expenditure played the supplementary role; the elastic of different health expenditure proportion was fluctuated before 2002, which became stable after 2002; it is easy to improve the “hard conditions” rather than the “soft conditions” . Conclusion: To accelerate the process of urban and rural medical security system integration, it is inevitable to establish an efficient configuration mechanism for urban and rural health expense, balanced develop urban and rural medical insurance system and scientifically guide social health investment.
2.Changes of vasocative intestinal peptide neurons in the myenteric plexus of gastric antrum in rats with se-vere acute pancreatitis
Cheng ZHANG ; Zhong LIN ; Yuan YUAN ; Zehui DUAN
Journal of Medical Postgraduates 2014;(9):932-935
Objective Patients with severe acute pancreatitis ( SAP) always suffer decrease in gastrointestinal motility , even gastrointestinal failure.The article aimed to investigate the changes of vasoactive intestinal peptide (VIP) in the myenteric plexus of the gastric antrum in rats with severe acute pancreatitis ( SAP) complicated by gastrointestinal dysmotility . Methods Twenty Sprague Dawley rats were randomly allocated into two groups:control group and SAP group .Acute pancreatitis was induced by intraductal infu-sion of 5%sodium taurodeoxycholate .24 h after operation , records were made on pathological evaluation of pancreatic lesion , amylase, C-reactive protein ( CRP) , gastric emptying rate and the percentage of VIP neurons in the total neurons . Results Compared with the control group, the gastric emptying rate in the SAP group was significantly lower ([31.49 ±3.96]% vs [70.99 ±1.82]%).The score of pancreatic lesion, amylase, CRP and the percentage of VIP neurons was significantly higher ([14.63 ±1.06]score vs [1.60 ± 0.52]score, [2061.25 ±434.86]U/L vs [360.20 ±30.29]U/L, [140.10 ±17.07]μg/mL vs [35.71 ±6.43]μg/mL, [22.45 ± 4.10]%vs [10.72 ±1.92]%)(P<0.05). Conclusion Plas-ticity took place in VIP neurons in the myenteric plexus of gastric an-trum in rats with SAP complicated by gastrointestinal dysmotility , which was connected with neural mechanism underlying SAP compli-cated by gastrointestinal dysmotility .
3.Content determination of dencichine in Panax Notoginseng by a reversed phase ion-pair chromatography.
Lin LI ; Cheng-xiao WANG ; Yuan QU ; Xiu-ming CUI
China Journal of Chinese Materia Medica 2015;40(20):4026-4030
To build a reversed phase ion-pair chromatography to determination content of Dencichine from Panax notoginseng. Using Tetrabutyl ammonium hydroxide ions by the combination of reagent and HPLC method without derivatization to test the content of dencichine directly. The optimum conditions of supersonic extraction were solid-to-liquid ratio 1: 20, Continuous ultrasonic extraction: twice, each time 15 minutes; 3,500 r · min⁻¹, then centrifuging 15 minutes. Dencichine in different age, place, part and the different Processing mode were examined. The method is simple with sound separation degree and stability, which can facilitate the determination of dencichine content directly and provide the basis in quality standard of raw material.
Amino Acids, Diamino
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analysis
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Chromatography, Reverse-Phase
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methods
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Drugs, Chinese Herbal
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analysis
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Panax notoginseng
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chemistry
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Plant Roots
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chemistry
4.Bioactivity and stability study of the antifungal substance produced by Streptomyces NG-715
Min YUAN ; Hua BIAN ; Jing LI ; Xuepeng ZHANG ; Lin CHENG
Chinese Journal of Biochemical Pharmaceutics 2014;(2):37-39
Objective To explore the bioactivity and stability of the antifungal substance produced by Streptomyces NG-715 as well as to establish the assay for biological activity detection. Method Take the antifungal substance as experimental materials, and test its minimum inhibitory concentration and minimum bactericidal concentration on four fungi strains including Saccharomyces cerevisiae, Penicillium citrinum, Aspergillus niger, Rhizopus sp. Aspergillus niger was used as indicator strain to measure the biological activity and stability of the antifungal substance. Results The results showed that the MIC of the antifungal substance on four fungi strains including Saccharomyces cerevisiae,Penicillium citrinum,Aspergillus niger,Rhizopus sp were 1.25, 2.5, 3.75 and 3.75μg/mL, respectively. The MBC of the antifungal substance on four fungi strains were 2.5, 10, 17.5 and 17.5μg/mL, respectively. Linearity regress equation of the antifungal substance in Aspergillus niger was y=26.963 x-27.6,R 2=0.9991. The antifungal substance was pH-stable, heat-stable but ultravio1 et-sensible. Conclusion The results from this study will porvide useful information for the further extraction and analysis on the bioactive compound.
5.Mitochondrial DNA partly point mutations in praecox Parkinson's disease
Jin WANG ; Zhonghui LIN ; Daobin CHENG ; Chaogui MA ; Zhigang YUAN
Chinese Journal of Neurology 2000;0(05):-
Objective To test the association between mitochondrial DNA(mtDNA) point mutations and praecox Parkinson's disease (PPD),and to investigate the characteristics of mtDNA mutations in Chinese patients with PPD. Methods Screening mtDNA A4336C, G5460A,A10398G,A13780G point mutations in 40 patients with PPD and 48 in control group was carried out by using Polymerase Chain Reaction (PCR), dot blotting, radiant developing. And sequencing was given to the nucleotide position (np)10256~np10577mtDNA of 20 patients with PPD and 20 subjects in control group.Results Out of the 40 patients with PPD, 20 (50%)had A10398G mutation. 6 (15%) had G5460A, 5(12.5%) had A13780G, 2 (5%)had A4336C, 19 (47.5%)had C10400T mutation. Out of the 48 controls, 7(14.6%) had A10398G, 24.2% had G5460A, 1 (2.1%)had A13780G and 20 (41.7%)had C10400T, but no any A4336C mutation was found in the controls. Thus, the ratios of A10398G,G5460A,A4336C,A13780G in patients with PPD were separately higher than those in the control group. Moreover significant difference was found in A10398G point mutation (P
6.Effect observation on the hypernatremia in elderly patients with ARDS treated by continuous veno-venous hemofiltration
Xin LIN ; Jing YUAN ; Shan HE ; Lei CHENG
Chongqing Medicine 2013;(28):3355-3356,3359
Objective To investigate the clinical effects on the hypernatremia in elderly patients with ARDS treated by continu-ous veno-venous hemofiltration(CVVH) .Methods Eighteen cases of elderly patients with ARDS and hypernatremia were treated by CVVH ,the serum sodium concentration was observed and the displacement fluid composition was adjusted dynamically by serum sodium concentration ,the changes of kidney function ,gas index ,plasma osmotic pressure and APACHE Ⅱ score were recorded and analyzed .Results After treatment ,the plasma osmotic pressure of patients declined [(318 .5 ± 20 .2)mmol/L vs .(294 .4 ± 15 .1) mmol/L ,P<0 .01] .After treatment ,the oxygenation index rised [(157 .4 ± 34 .2) vs .(178 .4 ± 40 .4) ,P< 0 .05] ,APACHE Ⅱscore declined[(20 .8 ± 9 .4) vs .(14 .5 ± 8 .8) ,P<0 .05] ,and the comparison of after and before treatment was statistically signifi-cant .Conclusion Therapy method of elderly patients with ARDS and hypernatremia treated by CVVH can correct hypernatremia , improve oxygenation index and APACHE Ⅱ score effectively .
7.Study on the Optimal Fermentation Process for Production Chitinase of Streptomyces sp. A048
Li-You QIU ; Ming-Dao WANG ; Yuan-Chen QI ; Pei-Lin YUAN ; Xin-Cheng JIA ;
Microbiology 1992;0(02):-
Streptomyces sp. A048 was cultured in a complete medium to the last stage of log phase,the hyphae were washed and collected by centrifugation. Then the hyphae were inoculated in liquid medium for chitinase production using two-step fermentation. Activity of chitinase produced by two-step fermentation was 1.1 times higher than that from one-step fermentation,and ferment cycle was for 54 hours,which was 66 hours shorter than that of one-step fermentation. The hyphae and the powder of chitin were co-immobilizated and cultured in liquid medium for 36 hours,activity of chitinase was 1.8 times higher than that from one-step fermentation,and ferment cycle was 54h shorter than that of one-step fermentation. By adding 0.4% cellulose to two-step fermentation,activity of chitinase was 18.52 U/mL that was 4 times higher than that from the control and 10 times higher than that from one-step fermentation. Two step fermentation with chitin and cellulose may be the optimal fermentation process to produce Chitinase from Streptomyces sp. A048.
8.Preoperative reformatting for C_2 pedicle screw track using three-dimensional computed tomography technique
Feng YUAN ; Hui-Lin YANG ; Jiang-Shan LI ; Kai XU ; Guang-Jun CHENG ; Kai-Jin GUO ; Wei-Cheng GONG ;
Chinese Journal of Trauma 2003;0(08):-
Objective To discuss the technique and value of preoperative reformatting with three-dimensional computed tomography technique for C_2 pedicle screw track.Methods GE Light Speed 16 Pro spinal CT scans of 15 adult dry vertebrae were loaded into an imaging station (software ADW4.2).Two methods of C_2 pedicle screw techniques were analyzed through virtual screw trajectory by VR (volume rendering) and MPR (multiple planar reformatting) techniques,in method A,screw entry point was the intersection between the media-vertical and the cranial line of C_2 inferior facet joint,in method B,the screw track was from the cranial and medial quadrant of the dorsal part of C_2 inferior facet joint.Results The screw track could be observed dynamically from any plane.Two vertebrae were ob- served with smaller height in isthmus and the medial edge of the transverse foramen since no space was a- vailable for the screw.The screw trajectories data were compared between method A and method B,which showed that the angles towards the cephalad (in sagittal plane) and midline (in transverse plane) were bigger in method A than in method B (P<0.05,0.01),but the safe screw diameter was smaller in method A than in method B (P<0.05),and there was no difference of the screw length between the two methods(P<0.05 ).Conclusion In this research,the individual C_2 pedicle screw entry points, screw diameter and security screw angle can be simulated,and the screw track can be observed dynami- cally to make sure if it transits the bone structure completely.Preoperative three-dimensional computed tomography reformatting for pedicle screw track is of great value in clinical and basic researches.
9.Determination of β-sitosterol and total sterols content and antioxidant activity of oil in acai (Euterpe oleracea).
Cheng HE ; Wei LI ; Jian-Jun ZHANG ; Sheng-Sheng QU ; Jia-Jing LI ; Lin-Yuan WANG
China Journal of Chinese Materia Medica 2014;39(23):4620-4624
In order to establish a method for the determination of the sterols of the oil in the freeze-dried acai (Euterpe oleracea Mart.) and to evaluate its antioxidant activities, a saponification/extraction procedure and high performance liquid chromatography (HPLC) analysis method were developed and validated for the analysis of phytosterols in PEE (Petroleum ether extract). Separation was achieved on a Purosper STAR LP C18 column with a binary, gradient solvent system of acetonitrile and isopropanol. Evaporative light scattering detection (ELSD) was used to quantify β-sitosterol and the total sterols. Peak identification was verified by retention times and spikes with external standards. Standard curves were constructed (r = 0.999 2) to allow for sample quantification. Recovery of the saponification and extraction was demonstrated via analysis of spiked samples. The highest content of total sterols is β-sitosterol. The antioxidant activities of the extracts were evaluated using the total oxyradical scavenging capacity assay (TOSC assay). The result showed that the PEE exhibited significant antioxidant properties, sample concentration and the antioxidant capacity had a certain relevance.
Antioxidants
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analysis
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Arecaceae
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chemistry
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Chromatography, High Pressure Liquid
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Drugs, Chinese Herbal
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analysis
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Phytosterols
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analysis
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Sitosterols
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analysis
10.The technique of dacryocystorhinostomy inside nasal cavity under endoscopy.
Xiao-xiong YANG ; Jie YUAN ; Lin-cheng WANG
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2010;45(4):334-335
Adolescent
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Adult
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Dacryocystorhinostomy
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methods
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Endoscopy
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Female
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Humans
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Male
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Middle Aged
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Nasal Cavity
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surgery
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Young Adult