1.Determination of granulocyte colony-stimulating factor and interlukin-8 in acute surgical bacterial infection
Chinese Journal of General Practitioners 2008;7(7):459-461
Objective To evaluate the value of serum granulocyte colony-stimulating factor(G-CSF),interlukin-8(IL-8)and white blood cell count(WBC)in detecting acute surgical bacterial infections.Methods A total of 36 patients with infections and 32 with traumatic diseases admitted in Beijing Tongren Hospital without use of antibiotics before admission were recruited,as well as 30 normal healthy controls.Three milliliters of peripheral blood were collected from each of them.Serum G-CSF and IL-8 were measured by enzyme-linked immunosorbent assay(ELISA).Results Of all the 68 patients,serum G-CSF Was(82±71)ng/L in average in those with infections,significantly higher than that in those with trauma(15±7)ng/L(P<0.01)and controls(7±4)ng/L(P<0.01).Conclusions Serum G-CSF may be used as a sensitive indicator for acute surgical bacterial infections.
2.Stem cell transplantation for nonunion: an evaluation of its effect
Xiucheng CHU ; Shuai CHENG ; Shuyi YAN
Chinese Journal of Tissue Engineering Research 2015;19(19):3112-3116
BACKGROUND:Stem cel transplantation has been shown to have many advantages in treatment of diseases. Its application can treat various diseases in many systems such as nervous system, immune system and endocrine system. Its advantage is incomparable. These are al credit to the special abilities, including easy sample colection, strong self proliferative ability, wide differentiation range, repair of injured tissue and immunoloregulation. OBJECTIVE:To explore the clinical effects of stem cel transplantation in treatment of nonunion. METHODS:A computer search was performed in CNKI database for articles concerning stem cel transplantation for nonunion published from 2005 to 2014. The key words were stem cels, nonunion in Chinese. 244 articles were analyzed, and typical literatures were further compared. RESULTS AND CONCLUSION:Stem cels have the abilities of self-renewal and differentiation. Their source is not limited, and the sample colection is convenient. Stem cels have smal injury to the donor, do not have immunogenicity, and have fewer complications. The cost is low. Stem cels are easily isolated and cultured, can proliferate infinitely, and provide a pathway for severe bone injury such as nonunion, bone defects and comminuted fracture. The deep study of stem cels creates a new direction for nonunion treatment, and has achieved certain results in clinical trials.
3.Study of circulating tumor cells in lung cancer
Junning LIU ; Shuai ZHANG ; Yan YU
Journal of International Oncology 2013;40(10):772-774
Circulating tumor cells (CTCs) are present in the peripheral blood,and play an important role in the recurrence and metastasis of lung cancer.As the researches about CTCs and targeted therapy move along,it is found that CTCs can be used as a liquid tumor tissue to guide clinical treatment and have a certain significance in the clinical staging and prognosis evaluation of lung cancer.
4.Research progress on anti-adhesive materials abroad
Li ZENG ; Shuai YAN ; Wenlin LI
Journal of Medical Postgraduates 2014;(12):1315-1317
Anti-adhesive materials were the hot spot in recent clinical study because opinions were vary from different experts . This paper aims to introduce the classification of anti-adhesive materials according to the different properties and expound the mecha-nism and application limitation of anti-adhesive .The pitfalls in current barrier materials research and future research directions are summarized and analyzed .
5.Generalized design of fitness equipment control interface
Nengtao LIN ; Zhijian SU ; Shuai QIAO ; Yangyi YAN ; Yongjie YAN
Chinese Journal of Tissue Engineering Research 2014;(42):6795-6799
BACKGROUND:Health has been paid more and more attention in modern society, the health of those special groups, such as the elderly and the disabled, should also be brought to the forefront. As fitness equipment is more and more popular in contemporary, our focus should be transferred to the use of fitness equipment for these special groups.
OBJECTIVE:To put forward the design strategy of fitness equipment control interface, for the special groups to use common fitness equipment comfortably and conveniently.
METHODS:Based on the research of existing fitness equipment control interface, according to the usage habits and cognitive awareness of special groups on control interface, a new design strategy has been put forward using the general design method and ergonomics.
RESULTS AND CONCLUSION:Based on the existing 45 kinds of exercise bikes, 84 kinds of running machines and 129 kinds of treadmil fitness equipments, we found that these equipments are designed for common users in the aspects of design and production process and control interface. Universal design is a design concept beyond the lack of capacity to meet the different needs of different populations, and designed products can reduce or even eliminate the difference in the ability of special populations and the general population in use. The new strategy makes design of fitness equipment control interface generalized and good man-machine interactive, which can meet the demand of the special groups and help them do fitness exercise to improve their health and body function.
6.One case of overseas imported quartan malaria
Miaomiao SUI ; Shuai ZHAO ; Jin LI ; Yan XU
Chinese Journal of Schistosomiasis Control 2015;(3):332-334
A case of overseas imported quartan malaria was reported in Weihai City. The patient worked in Africa for many years had no blood transfusion history and had not been to malaria endemic regions of China. In approximately half a month af?ter returning from Africa the patient appeared suspected malaria symptoms such as irregular fever sweating and headache. The patient was diagnosed as quartan malaria by a blood test in basic hospital reviewed with a microscope by Weihai Centre for Disease Control and Prevention and checked through the microscopic examination of malaria diagnosis and reference laboratory and PCR amplification by Shandong Institute of Parasitic Diseases. The patient was cured after the treatment with chloroquine/primaquine for 8 days and did not recur in the 3?month following up.
7.Quality analysis of commercial samples of Ziziphi spinosae semen (suanzaoren) by means of chromatographic fingerprinting assisted by principal component analysis
Shuai SUN ; Hailing LIU ; Shunjun XU ; Yuzhen YAN ; Peishan XIE
Journal of Pharmaceutical Analysis 2014;(3):217-222
Due to the scarcity of resources of Ziziphi spinosae semen (ZSS), many inferior goods and even adulterants are generally found in medicine markets. To strengthen the quality control, HPLC fingerprint common pattern established in this paper showed three main bioactive compounds in one chromatogram simultaneously. Principal component analysis based on DAD signals could discriminate adulterants and inferiorities. Principal component analysis indicated that all samples could be mainly regrouped into two main clusters according to the first principal component (PC1, redefined as Vicenin II) and the second principal component (PC2, redefined as zizyphusine). PC1 and PC2 could explain 91.42%of the variance. Content of zizyphusine fluctuated more greatly than that of spinosin, and this result was also confirmed by the HPTLC result. Samples with low content of jujubosides and two common adulterants could not be used equivalently with authenticated ones in clinic, while one reference standard extract could substitute the crude drug in pharmaceutical production. Giving special consideration to the well-known bioactive saponins but with low response by end absorption, a fast and cheap HPTLC method for quality control of ZSS was developed and the result obtained was commensurate well with that of HPLC analysis. Samples having similar fingerprints to HPTLC common pattern targeting at saponins could be regarded as authenticated ones. This work provided a faster and cheaper way for quality control of ZSS and laid foundation for establishing a more effective quality control method for ZSS.
8.Risk factors analysis of microalbuminuria in patients newly diagnosed with type 2 diabetes mellitus
Liping GU ; Shuai YAN ; Ying ZHANG ; Mingyu GU ; Yijie WU
Clinical Medicine of China 2012;28(6):617-620
Objective To analyze the incidence and risk factors of microalbuminuria in newly diagnosed and hospitalized type 2 diabetes mellitus patients,and to provide the theoretical basis for therapy of diabetes and diabetic chronic complications.Methods The blood glucose,lipid profile,24h-urinaryalbumin,fasting and postprandial serum insulin and peptid C were measured in 286 newly diagnosed and hospitalized type 2 diabetic patients from Mar.2006 to Sep.2009.Microalbuminuria was defined as the 24h-urinary albumin between 30 to 300 mg twice.Insulin resistance index (HOMA-IR) was recorded and all the patients received fundus examination by ophthalmologists after expansion of the pupil to ensure whether there was retinopathy or not.Results (1)The incidence rate of microalbuminuria in this study was 19.58% (56/286).(2)Normal albuminuria group and MA group combined DR were 19.57% (45/230) and 33.93 % ( 19/56 ) respectively,and the difference was statistically significant( x2 =5.349,P =0.021 ).Compared with control,the FPG,HbA1c and HOMA-IR were significantly higher in microalbuminuria group ( FPG:[ 11.08 ± 1.76 ] mmol/L vs [9.24 ±1.65]mmol/L,t =-6.148,P <0.001;HbA1c:[11.54 ± 1.59]% vs [9.39 ± 1.64]%,t =-7.533,P <0.001 ;HOMA-IR:[3.73 ±0.42] vs [3.50 ±0.30],t =-3.774,P <0.001 ).(3) Pearson correlation analysis revealed microalbuminuria was positively correlated with FPG( r =0.460),HbA1 c ( r =0.499),HOMA-IR( r =0.308)and combined DR(r =0.405)(P <0.01).(4)Stepwise multiple regression analysis revealed that FPG (ββ =- 0.804,P < 0.01 ),HbA1 c (β =- 0.455,P < 0.01 ) and combined DR (β =1.527,P < 0.05 ) were independently risk factors of microalbuminuria.Conclusion The development of microalbuminuria in newly diagnosed and hospitalized type 2 diabetic patients is associated with FPG,HbA1c and HOMA-IR,and will be easier to merge diabetic retinopathy.
9.Effect of irbesartan on osteopontin expression and fibrosis in diabetic rat kidney
Jie SHEN ; Yuanyuan HU ; Yan ZHU ; Jielong TANG ; Shuai LIU
Chinese Journal of Nephrology 2012;28(1):47-51
Objective To explore the effect of different doses of irbesartan on osteopontin expression and fibrosis in diabetic rat kidney. Methods Sixty-three g-week old male Wistar rat were randomly divided into control group (Ctrl group,n=7),diabetes group (DM group,n=14),30 mg·kg-1d-1 hydralazine administrated group (DM+Hyd group,n=12),25 mg·kg-1·d-1 irbesartan administrated group (DM+Irb25 group,n=10),50 mg·kg-1 ·d-1 irbesartan administrated group(DM+Irb50 group,n=9) and 200 mg·kg-1·d-1 irbesartan administrated group (DM+Irb200 group,n=11).Four weeks after modeling,rats were administered with the corresponding dose of irbesartan.After 12 weeks,urinary albumin excretion rate (UAER),endogenous creatinine clearance rate (Ccr) were measured; morphology and collagen deposition in rat kidney were observed by PAS and Masson staining respectively; Ang Ⅱ content in kidney was measured by ELISA; renal tissue TGF-β1 and OPN mRNA expression were detected by real-time PCR. Results UAER and Ccr in the intervention groups of irbesartan were significantly decreased compared with DM group (P<0.05).UAER and Ccr in DM+Irb200 group were significantly lower than those in DM+Irb25 group and DM + Irb50 group (P<0.05).Glomerular hypertrophy,mesangial matrix expansion,tubular lesions and deposition of collagen fiber were siginficant in diabetic rats compared with Ctrl,and prevented after administration with different doses of irbesartan.Ang Ⅱ protein level and TGF-β1,OPN mRNA expression in renal tissue of diabetic rats were significantly higher than those in Ctrl group.Ang Ⅱ,TGF-β1,and OPN mRNA expression was significantly reduced after administration with different doses of irbesartan,and with the increase of irbesartan,the above indicators were decreased P<0.05).Renal local Ang Ⅱ level was positively correlated with OPN mRNA expression (r=0.74,P<0.01). Conclusion Irbesartan reduces renal TGF-β1,OPN mRNA expression by decreasing kidney local Ang Ⅱ in dose-dependent manner,and eventually reduces tubulointerstitial fibrosis,which plays a role in kidney protection.
10.Improvement of Digital Capsule Endoscopy System and Image Interpolation.
Shaopeng ZHAO ; Guozheng YAN ; Gang LIU ; Shuai KUANG
Chinese Journal of Medical Instrumentation 2016;40(1):27-37
Traditional capsule image collects and transmits analog image, with weak anti-interference ability, low frame rate, low resolution. This paper presents a new digital image capsule, which collects and transmits digital image, with frame rate up to 30 frames/sec and pixels resolution of 400 x 400. The image is compressed in the capsule, and is transmitted to the outside of the capsule for decompression and interpolation. A new type of interpolation algorithm is proposed, which is based on the relationship between the image planes, to obtain higher quality colour images. capsule endoscopy, digital image, SCCB protocol, image interpolation
Algorithms
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Capsule Endoscopy
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instrumentation
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Equipment Design
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Image Processing, Computer-Assisted