Objective To research into the current situation of basic medicine knowledge grasp of non-medical students in local comprehensive university and to discuss the significance and necessity of launching basic medicine knowledge education in comprehensive university.Methods Random sampling was used to survey non-medical students of 1-3 grades in three gorges university with questionnaire.SPSS 13.0 software was used to do statistical analysis.Results 89.1％ undergraduates had consciousness to deal with slight illness and slight wound by themselves and 95.4％ undergraduates would prepare some drug to use when necessary.But only 37.2％ undergraduates knew the medicine classification management method of our country and 94.2％ undergraduates might abuse common medicine.96.7％ undergraduates thought that popularizing basic medicine knowledge by selected courses in university was necessary.Conclusions Most undergraduates lack basic medicine knowledge and potential medicine safety hazard like abuse medicine is existed.Education on basic medicine knowledge in university is of great significance in improving the life quality and basic quality of undergraduates.

Objective To compare the accuracy of cone-beam computed tomography (CBCT ) and periapical radiography in the diagnosis of simulated external apical root resorption (EARR) .Methods The study sample comprised 160 single-rooted premolars for simulating 4 degrees of EARR :no(intact teeth) ,mild(cavity of 1 .0 mm in diameter and depth in root surface) ,moderate(1 .0 mm root shortening) ,and severe(3 .0 mm root shortening) .Two sets of radiographic images were acquired with CBCT and periapi-cal radiography .The severity for all resorption lesions were evaluated blindly by one calibrated examiner .The percentages of correct classification of each degree of EARR were compared between the two imaging techniques using McNemar test .Results With CBCT method ,the percentages of correct classification of no ,mild ,moderate ,severe and all EARR were 95 .0% ,97 .5% ,42 .5% , 87 .5% and 80 .6% ,respectively ;with periapical radiography method ,the percentages were 85 .0% ,42 .5% ,70 .0% ,92 .5% and 72 .5% ,respectively .Significant differences were found between the two imaging techniques for evaluating mild ,moderate ,and all-EARR(P<0 .05) .Conclusion CBCT imaging is more reliable than periapical radiography for detecting EARR ,whereas it is not sensitive to moderate root shortening .In orthodontic practices ,CBCT could be applied to the early diagnosis of EARR ,in order to help make the decision on continuation and modification of orthodontic treatment .

Objective To investigate the effects of type 2 diabetes on learning and memory of APP/PS1/Tau triple transgenic (3 × Tg) mice of Alzheimer’s disease, and the protective mechanism of liraglutide (LIR) thereof. Methods One month old C57BL/6 mice were set to be control group (WT). One month old 3×Tg mice were divided into control group (Tg), liraglutide group (Tg+LIR), type 2 diabetes group (Tg+T2DM) and liraglutide treatment group (Tg+T2DM+LIR). The model of T2DM was established by feeding the high fat and sugar fodder, and then injecting streptozotocin (STZ) in mice, making sure the fasting blood glucose was more than 7 mmol/L. Then the subcutaneous injection of LIR was administered for 2 months. The values of body weight and fasting blood glucose were detected at age of 5-month. Morris water maze was applied to evaluate the spatial learning and memory ability. Western blotting assay was used to measure the levels of phosphorylated Tau, neurofilament (NFs) and insulin receptor substrates. ELISA was used to detect the human Aβ42 to evaluate the effect of LIR on-amyloid. Results LIR can reduce body weight and blood glucose, can alleviate spatial learning and memory damaging caused by T2DM, and also can improve phosphorylated Tau levels, NFs and insulin receptor substrates caused by T2DM, and finally can reduce the deposition ofβ-amyloid of 3 × Tg mice. Conclusion T2DM can aggravate symptoms of AD in 3×Tg mice, and LIR has a protective effect on it.

Objective To investigate the effect of human cytomegalovirus (HCMV) on proliferation of colony forming unit T-lymphocyte (CFU -TL)and its interference methods. Methods Normal CFU - TL culture was used as blank control. Normal CFU- TL culture system plus inactivated HCMV fluid as inactivated HCMV control. The dilution of 1:10,1:100,1:1000 were added into CFU -TL colonies culture system directly as infected group. Astragalus (AMI) and ganciclovir(GCV) were added into culture system with HCMV dilution of 1:10 as experimental group. By methylcellulose semi-solid culture, different concentrations of HCMV - AD1699 affect CFU-TL and interfered by astragalus AMI, GCV. CFU - TL were surveyed. The effect of HCMV on CFU-TL proliferation was measured by MTT; HCMV-AD169 DNA in CFU-TL was found by PCR. Results 1. Compared with control group, the numbers of CFU -TL in the HCMV infection groups decreased significantly(P

A novel disposable three electrodes blood alcohol biosensor strip was fabricated by a screen printing technique. Multi-wall carbon nanotube(MWCNT), Meldola′s(MB), alcohol dehydrogenase(ADH)and nicotinamide adenine dinucleotide cofactor (NAD+) were modified on the surface of the carbon working electrode. Then hydrophilic membrane was stuck in the outermost of the three electrodes to make a reaction camera of 5 μL. Experimental results indicated that the biosensor possessed good accuracy and stability, the linear response range was 0.5-20 mmol/L with correlation coefficient of 0.9949, detection limit was 0.22 mmol/L, and the response time was less than 15 s. Some influencing factors to the biosensor were investigated, such as the pH, temperature and interferences. Correlation analysis showed that there was a significant correlation between the methods of biosensor and the headspace vapor phase chromatography in 10 whole blood samples(r=0.97583). Small volume whole blood sucked using siphonage to detect blood alcohol directly and quantitatively was the obvious character of the biosensor.

Objective To investigate the mechanism and suppression effect of human cytomegalovirus (HCMV) on proliferation of megakaryocyte progenitors(CFU-Mk)in vitro.Methods Colony forming unit-assay was applied to observe the effect of HCMV-AD 169 strain on CFU-Mk of cord blood. The technique of PCR was used to demonstrate the existence of HCMV-AD 169 DNA in the colony cells of cultured CFU-Mk.Results 1.The number of CFU-Mk colonies in HCMV-infected groups decreased significantly compared with that of control group. The CFU-Mk formation was inhibited significantly after HCMV-AD 169 strain infection.The suppression effect showed a dose-dependent fashion: 46.7 % inhibition with 10 -1of HCMV, 29.7 % with 10 -2 and 14.5 % with 10 -3 in the CFU-Mix assay. The peak of CFU-Mk colonies (d16-18) was not significantly different between control group and experimental groups, but the duration of the CFU-Mk colonies in infected groups was significantly shorter than that in control group.2. HCMV-DNA was positively detected in the colony cells of viral infected group by PCR, while negative in control group.Conclusions HCMV-AD 169 strain may inhibit the differentiation and proliferation of CFU-Mk by infecting the hematopoietic progenitors. HCMV may cause the suppression of hematopoiesis by direct infection, which may be the main reason for HCMV infection associated with thrombocytopenia.

Glucocorticoids/urine* ; Humans ; Hydrocortisone ; Marathon Running ; Saliva/chemistry* ; alpha-Amylases/analysis*

Objective:To explore the clinical efficacy of dual-kidney transplantation from infant donors to adult recipients.Methods:From December 2012 to November 2020 in Organ Transplant Center First Affiliated Hospital Sun Yat-sen University, rertrospective reviews were conducted for clinical data of 25 pairs of infant donors and adult recipients. The survival rates were calculated for both recipients and transplanted kidneys at Year 1/3/5 post-transplantation. And the postoperative recovery status and the postoperative incidence of adverse events of recipients were observed.Results:The survival rates of recipients were all 95.8% at Year 1/3/5 and those of transplanted kidney and dealth-cancelling transplanted kidney all 87.2%. One case died due to acute inferior-wall cardiac infarction while three others lost renal functions for vascular thrombosis, ureteral stenosis and urinary fistula. Except for loss of renal function and death, the postoperative estimated golmerular fitration rate was (99.35±21.78), (103.11±29.20) and (114.99±28.55) ml/(min·1.73 m 2) at Year 1/2/3 respectively. Conclusions:Selecting proper recipients, standardizing donor acquisition and surgical procedures and strengthening perioperative managements may expand the donor pool. The overall outcomes are excellent for adult recipients with dual-kidney transplantation from donations after infants' death.

[Abstract ] Objective Chronic renal disease,a common and frequent disease,is the most cause inducing chronic renal failure. There is an important guiding significance for renal biopsy in the diagnosis,treatment and prognosis of renal disease.The aim of this study was to analyze the characteristics of renal biopsy and the relation between pathological types and clinical presentation in Tibet. Methods Between June 2011 and December 2013 in General Hospital of Tibetan Military Command, Lhasa, percutaneous renal biopsy were per-formed in 107 renal patients.In this study, the gender, age, pathologic entities, and clinical manifestation were analyzed retrospectively. The final diagnosis was made by the clinical manifestation, laboratory examination,and pathologic results. Results The mean age at renal biopsy was 29.8 ±12.2(10~66)years in 47 male cases (43.9%) and 69 female cases (56.1%).This includes 75 Tibetan cases (70.1%), 31 Han cases (28.9%), and Bai cases (1.0%).The primary glomerular disease was 95.3%and the secondary glomerular disease was 4.7%in the total 107 cases.Fourty-four point three percent of the primary glomerular disease were male cases and 100%of secondary glomerular disease were female cases.The main pathological type of the primary glomerular disease was podocyte nephropathy (43.9%), followed by membranous nephropathy (18.7%), IgA nephropathy (11.2%), focal segmental glomerulosclerosis (9.3%) and mesangiocapillary glomerulonephritis (5.6%).The clinical manifestations of 107 cases were classified as syndrome of nephrotic syn-dromn(69.1%),urinary abnormalities(14.9%),isolated macrographic haematuria (3.7%),chronic renal failure(2.8%).Among the nephrotic syndrome,podocyte disease was 63.5%,membranous glomerulopathy was 18.9%,focal segmental glomeruolsclerosis was 8.1%,and membranoproliferative glomerulonephritis was 5.4%. Conclusion The primary glomerulonephritis was the most common glomerular diseases at high altitude area in Tibet.The most frequent type of pri-mary glomerular nephritis was podocyte disease, and the most frequent type of secondary glomerular nephritis was Henoch-Schonlein purpura glomerulonephritis.