The clinical probation is an important part of medical education, which is also a bridge from theoretical learning to clinic practice. To improve the quality of clinical probation teaching of hematology department, multiple teaching activities have been carried out, including full preparation before teaching, creating better medical environment, arousing enthusiasm, tralning the physician-patient communication ability and strengthening operating skill of the students. Good study effect has been achieved.

To discuss the pathogenesis of Alzheimer's disease (AD), we summarized the mechanisms of treating AD animal models by acupuncture from literatures in recent years as follows. Senile dementia rats' cognitive capabilities and memory could be improved by reduction of beta-amyloid protein, attenuation of excessive phosphorylation of tau protein, regulation of center neurotransmitter dysmetabolism, oxidation of anti-free radicals, reduction of neuron apoptosis in the cortex and the hippocampus, inhibition of glial cells' differentiation, adjustment of G protein signaling transduction, and improvement of the mitochondrial dysfunction, thus providing experimental evidence for treating AD by acupuncture.
Acupuncture Therapy ; Alzheimer Disease ; therapy ; Animals ; Disease Models, Animal

Dry eye is one of the most frequently ocular surface diseases. Recent researches found that many reasons caused decrease of ocular surface damage and the quality of tears , such as the change of ocular surface, immuno-inflammatory responses, apoptosis and the reduction of sex hormone. It is reported that the decline of ovarian function and hormone level in postmenopausal women which leads to abnormal structure and function of tear film is more likely to develop dry eye. In this paper, the ocular surface, pathogenesis and progresses of treatment on postmenopausal women with dry eye are reviewed.

Matrix assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF MS) is an emerging tool for detecting microorganisms. It can be used not only for rapid identification of microorganisms, but also for the research of resistance mechanisms. Producing β-lactamase is the main mechanism for resistance of β-lactam antibiotics in Gram-negative bacilli. Currently using MALDI-TOF MS for rapid detection of bacterialβ-lactamase has been widely reported, including detection of β-lactam hydrolysis activity of β-lactamase, direct detection of β-lactamase molecule, peptide and relevant proteins, and detection of the single nucleotide polymorphisms (SNPs) of β-lactamase gene. This paper reviews current application of MALDI-TOF MS to the detection of β-lactamase based on the latest research findings.

After the advantages of PACS system in medical imaging examination were described, its rational appli-cation in medical imaging examination was elaborated .

Objective To explore the effect of different type of atrial fibrillation(AF) on plasma brain natriuretic peptide(BNP) level in male patients.Methods Fifty-eight hospitalized male patients with AF were enrolled,including 35 cases with paroxysmal AF,14 cases with persistent AF,and 9 cases with permanent AF.All subjects had the examination of echocardiography/electrocardiogram within 24 h after admission.Venous blood sample were collected in a quiet prostration state on the next early morning for BNP detection.The plasma BNP level was determined by radioimmunology-assay(RIA).Results The average level of plasma BNP in male patients with permanent AF(2343.25 ± 820.24)μg/L was significantly higher than those with persistent AF([576.43 ± 223.07]μg/L,t=8.74,P＜0.001) and paroxysmal AF([632.74 ± 103.93]μg/L,t=8.73,P＜0.001),but there was no significant difference between the last two groups(t=0.59,P＞0.05).Conclusion BNP is a sensitive indicator of early heart function impairment related with AF,particularly elevates in male patients with permanent AF.

Objective:To discuss the ways to deal with adverse drug reactions in pharmaceutical care. Methods:A case of drug-induced kidney injury was provided to analyze the effect of clinical pharmacist on adverse drug reactions. Results and Conclusion:Good quality of pharmaceutical care, such as reliable drug information, is valuable in clinical practice.

Objective To explore the application of ROC curve analysis in evaluating the virtual screening of ?-secretase (BACE-1) inhibitors.Methods Virtual screening were performed for BACE-1 inhibitors using different scoring functions (Surflex-score,D-score,G-score,PMF-score,ChemScore),the screening library was composed of 50 BACE-1 inhibitors and 9 950 inactive compounds.Five scoring functions were used for ranking,and application of ROC curve analysis in evaluating the results of ranking.Results Using D-score to rank the database,the area under the curve (AUC) was 0.935.If specificity was considered primarily,more active compound were obtained by Surflex-score;if sensitivity was considered primarily,more active compounds were obtained by D-score.Conclusions ROC curve consists of sensitivity and specificity together,it can be used to set the right threshold after virtual screening to obtain active compounds as many as possible.

Objectives To study the clinical and pathological features of patients with ANCA-negative pauci-immune crescentic glomerulonephritis.Methods ANCA was detected and the clinical and pathological features were analyzed in 33 patients with pauci-immune crescentic glomerulonephritis.Results Of the 33 patients with pauci-immune crescentic glomerulonephritis, 15(45%) were ANCA negative, which accounted for 15% of the patients with crescentic glomerulonephritis. Of the 15 patients with negative ANCA,9 had multi-system involvement and 6 were clinically limited to kidney only. Renal biopsies showed small vessel vasculitis in 2 patients. After intensive immunosuppressive therapy, one out of thirteen patients was cured,six achieved clinical remission,while the other 6 became dialysis dependent.Conclusions The clinical and pathological features of the patients with ANCA-negative pauci-immune crescentic glomerulonephritis are similar to those with ANCA-positive,while the ages of these patients are younger and the prognosis poorer.

OBJECTIVE:To analyze the effects of different disinfectants on results of antibiotics skin test,and to improve the accuracy of the judgment results of antibiotics skin test. METHODS:1 500 patients undergoing antibiotics skin test of penicillin and cephalosporin were randomly divided into group A and group B with 750 patients in each group. Group A was given 75% etha-nol disinfection,and group B was given iodine disinfection. The incidence of false positive results were compared after disinfected with 2 kinds of disinfectants. RESULTS:The incidence of false positive result in group B was lower than in group A,with statisti-cally significant difference (χ2=10.004,P<0.05). CONCLUSIONS:For skin disinfection of antibiotics skin test,iodine is better and safer than 75%ethanol.