Purpose To explore the reason which resulted in the flow-empty area in carotid artery, establishing a logistic regression model of carotid artery by power Doppler ultrasound, screening the risk factors of the occurrence of this phenomenon and analyzing their reasons. Materials and Methods Clinical data of 172 male subjects who had undergone power Doppler ultrasound were analyzed retrospectively, whether there was flow-empty area at the edge of carotid artery lumen during diastole was observed, brachial artery systolic pressure, diastolic pressure and pressure difference, carotid artery intima media thickness, and the existence of atherosclerotic plaques was measured, the age, body mass index (BMI), blood glucose, blood lipid, history of smoking and cerebrovascular accident situation was collected to establish the logistic model to analyze the risk factors resulted in flow-empty area. Results Among the 172 patients, intima media thickened in 89 cases, systolic blood pressure increased in 97 cases, diastolic blood pressure increased in 7 cases, the pulse pressure increased in 90 cases, with the age of 65 years or older in 92 cases, atherosclerotic plaque formation in 84 cases, long smoking history in 63 cases, cerebral vascular accident history in 11 cases, diabetes mellitus in 79 cases, hyperlipidemia in 101 cases, and abnormal BMI in 13 cases. Doppler energy imaging showed flow-empty area wave type in 98 cases, no flow-empty area wave type in 74 cases. 5 statistically significant variables for the occurrence of flow-empty area in carotid artery lumen during diastole were selected using logistic regression, which were carotid artery intima media thickness, BASP, the pressure difference of brachial artery, existence of atherosclerotic plaque, and the age of patients (OR=50.643, 47.248, 29.426, 32.667 and 20.514, P<0.05). Conclusion The risk factors resulted in flow-empty area in carotid artery are increased IMT, systolic BP and pressure difference, existence of atherosclerotic plaque and the age of 65 years or older. The flow-empty area provides hemodynamic information for the diagnosis of atherosclerosis, and it also plays a helping role in evaluating the degree of arteriosclerosis.

Adolescent ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Male ; Paraquat ; poisoning

Bronchogenic Cyst ; Humans ; Laryngeal Diseases ; Male ; Middle Aged

Objective To investigate the situation of drug resistance and nosocomial infection of multi-drug resistant bacteria (MDR),guidance for clinical rational use of antibiotics.Methods A total of 1521 strains of MDR was isolated from January 2015 to December in Beijing Tongren Hospital,using matrixassisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) identification of bacteria,VITEK-2 Compact and Kirby Bauer (KB) method for drug sensitivity test.Results In 1 521 strains of MDR,Acinetobacter Baumanii were 589 strains (38.7％),nosocomial infection rate were 16.6％;350 strains of Escherichia coli (23.0％),nosocomial infection rate were 9.0％;249 strains of Staphylococcus aureus (16.4％),nosocomial infection rate were 2.7％;171 strains of Klebsiella pneumoniae (11.2％),nosocomial infection rate were 14.3％;150 strains of pseudomonas aeruginosa (9.9％),nosocomial infection rate were 64.7％;12 strains of Enterococcus faecium (0.8％),nosocomial infection rate were 16.7％.MDR Acinetobacter Baumanii,MDR Pseudomonas aeruginosa,extended-spectrumβ-lactamase (ESBL) + Escherichia coli and ESBL + Klebsiella pneumoniae resistance rate to Imipenem were 100％,91.5％,0.6％ and 55.6％.Conclusions MDR pseudomonas aeruginosa (MDR-PAE),MDR acinetobacter baumanii (MDR-AB) and ESBL + Klebsiella pneumoniae were highly resistant,and the nosocomial infection rate were higher.

Background Krüppel-like factor 6 (KLF6) is related to the physiological or pathological process,such as growth,cell differentiation,proliferation,apoptosis,angiogenesis,tissue repair,and so on.But in ophthalmology,it is less reported about the expressing level of KLF6 protein in lens epithelial cclls (LECs) or the effect of KLF6 on the proliferation of human LECs.Objective This study was to investigate whether KLF6 can inhibit proliferation of human LECs.Methods KLF6 eukaryotic expression plasmid (pEGFP-C2-KLF6) was constructed using reverse transcription PCR(RT-PCR) and identified by double enzyme digestion method and PCR.Human LECs strain (HLE-B3) was cultured and passaged using low glucose DMEM containing 10％ fetal bovine serum and then divided into 4 groups.KLE-B3 transfection reagents were added in the culture medium of all groups.In addition,no agent was used in the blank control group;only insulin-like growth factor-1 (IGF-1) was appended to the medium in only IGF-1 group ;null vector was transfected and IGF-1 was appended in the null plasmid transfection+ IGF-1 group;while pEGFP-C2-KLF6 eukaryotic expression plasmid was transfected into the cells,and simultaneously IGF-1 was added in the pEGFP-C2-KLF6 plasmid transfection+IGF-1 group.After 24 hours of intervene,water soluble tetrazolium salt-1 (WST-1) test was used to detect the growth status of the cells,and Western blot assay was used to assay the relative expressing level of KLF6 protein in the cells.In the other hand,the cells were cultured at the density of 1 ×104/piece,and 0,0.10 and 0.25 μg pEGFP-KLF6 were transfected into each piece of cells respectively,and then IGF-1 was added with a final concentration of 50 μg/L for 24 hours after cell culture.Expressions of Ki-67 protein and mRNA in the cell pieces were detected by immunocytochemistry and fluorescent semiquantitative PCR,respectively.Results The PCR product bands were consistent with KLF-6 gene in length,and the product fragments were corresponding with expectant ones via PCR and double enzyme digestion method,showing a successful construction of pEGFP-C2-KLF6 eukaryotic expression plasmid.After 24 hours of IGF-1 stimulation,the absorbance values of the cells were 0.86±0.00,2.10±0.01,2.24±0.12 and 1.06±0.02 in the blank control group,only IGF-1 group,null plasmid transfection + IGF-1 group and the pEGFP-C2-KLF6 plasmid transfection + IGF-1 group,with a significant difference among the 4 groups (F =38.322,P ＜ 0.05),and that in the pEGFP-C2-KLF6 plasmid transfection +IGF-1 group was significantly lowed in comparison with the only IGF-1 group and the null plasmid transfection+IGF-1 group (q=6.42,7.31,both at P＜0.05).Western blot assay showed that the relative expressing levels of KLF6 protein were statistically different among the four groups (F =591.858,P＜0.05),and those in the pEGFP-C2-KLF6 plasmid transfection+IGF-1 group were 1.47,2.04,3.27 folds higher than those in the blank control group,only IGF-1 group,respectively and null plssmid transfection+IGF-1 group,respectively.Immunocytochemistry revealed that the expressing intensity of Ki-67 protein was gradually weakened with the decrease of pEGFP-C2-KLF6 plasmid dose in the 0,0.10 and 0.25 μg pEGFP-C2-KLF6 plasmid transfection+IGF-1 groups.Fluorescence semiquantitative PCR results showed that the relative expression values of Ki-67 mRNA in the cells were O.15±0.08 and 0.11±0.03 in the 0.10 μg and 0.25 μg pEGFP-C2-KLF6 plasmid transfection+ IGF-1 groups,which were significantly lower than O.77± 0.12 of the 0 μg pEGFP-C2-KLF6 plasmid transfection group,with a statistically significant difference among the three groups (F =54.825,P＜0.05).Conclusions KLF-6 can effectively inhibit IGF-1-induced proliferation of human LECs,and it can be regarded as one of the regulatory factors of the proliferation of HLE-B3 cells.

Objective To investigate the clinical features of primary retroperitoneal fibrosis (RPF), and to find out better method for diagnosis and therapy. Methods Nine patients with primary RPF in Peking Union Medical College Hospital since 1990 to 2003 were analyzed retrospectively. Results All patients had abnormal findings in CT or MRI, and 8 of them had chronic non-specific inflammation of the retroperitoneum in pathology. Six patients had renal involvement and 2 of them had severe renal failure. Eight of the patients had received therapy with corticosteroid or tamoxifene. Conclusions RPF is an uncommon collagen vascular disease characterized by a chronic non-specific inflammation of the retroperitoneum.Because of the atypical manifestations of RPF, awareness of the disease is important.CT and (or) open biopsy remains the gold standard for diagnosis.Management typically includes surgery and drug treatment.Corticosteroid therapy or more recently,tamoxifen has been used successfully. The clinical and radiographic improvement with drug treatment has been seen in several patients and confirmed the diagnosis,thereby early diagnosis and treatment can bring the patient more excellent renal and general outcome.

Objective To research the effects of puerarin on Alzheimer′s disease(AD) rats spatial learning and memory dis‐order induced by Aβ1‐42 .Methods Bilateral hippocampal injection of Aβ1‐42 was used to induced AD model rats .All rats under‐went gavage administration with puerarin with different dose for 28 d since the 3rd day after the construction of model ;and the Morris water maze was used to test the spatial learning and memory ability of rats .Results The model group rats showed obvious learning and memory disorder ,and the ability of learning and memory disorder of rats in the high ,medium and low dose of puerarin interven‐tion group were significantly improved .Conclusion Puerarin can improve the spatial learning and memory ability of AD model rats .

Objective To observe the relationship of awake bispectral index (BISawake) and the postoperative cognitive dysfunction (POCD). Methods 100 patients aged 60~75 years with ASA status Ⅰ~Ⅱ, underwent elective lower abdominal surgery with intravenous anesthesia (propofol, remifentanyl and rocuronium). The BIS was adjusted in 40~60 during the surgery. Their cognitive function was assessed with the neuropsychological test battery commended by International study of postoperative cognitive dysfunction (ISPOCD). Results 8 patients withdrew for unwilling or serious complications. The BISawake was more than 65 in 68 patients (group A), and less than 65 in 24 patients (group B). The difference of the verbal learning immediate and delayed of Hopkins Verbal Learning Test-Revised was more in the group B than in the group A. Conclusion Lower BISawake may be associated with the decline of postoperative cognitive function.

OBJECTIVETo explore the distribution rules of proximal and distal focus of muscle meridian region in scapulohumeral periarthritis.

METHODSThree hundred and six shoulder joints of affected side were selected in 216 patients of scapulohumeral periarthritis. Under the guidance of muscle meridian theory, with the anatomical characteristics of muscle meridian focuses, the frequency and location where proximal and distal focus appeared were calculated by palpation.

RESULTSThe percentages of the frequency that the focus of muscle meridian of Hand-Yangming, Hand-Shaoyang, Hand-Taiyang, and three yin meridians of hand appeared at proximal points of shoulder joint were 25.6% (1 146/5 657), 30.9% (1 749/5 657), 19.0% (1 075/5 657), and 24.5% (1 387/5 657), respectively, the focuses of muscle meridian region were Jianyuci, Juguci, Xiaoshuoci, Naohuici, etc. The percentages of the frequency that the focus of muscle meridian region appeared at distal points of shoulder joint were 31.77% (287/905), 23.2% (210/905), 10.9% (99/905), and 34.1% (304/905), the focuses of muscle meridian were Yangxici, Shousanlici, Yangchici, etc.

CONCLUSIONThe location and frequency of proximal and distal focus of muscle meridian in scapulohumeral periarthritis are closely related with the anatomical structure and biomechanical characteristics of the shoulder joints, thus new therapy for scapulohumeral periarthritis is implied.

Acupuncture Points ; Acupuncture Therapy ; Adult ; Aged ; Female ; Humans ; Male ; Meridians ; Middle Aged ; Palpation ; Periarthritis ; diagnosis ; therapy ; Shoulder Joint ; anatomy & histology

Objective To reverse P-glycoprotein-mediated muhiple drug resistance using RNA interference(RNAi)in cultured rat astrocytes.Methods Astroeytes overexpressing P-glyeoprotein induced by coriaria lactone were transfected with the short-hairpin RNA expression vector-p-SIREN shuttle designed to target Mdrl mRNA.The mRNA level of Mdrl gene was evaluated by real-time PCR;the P-glycoprotein was examined by immunocytochemistry and image analysis,meanwhile the rhodamine efflux was assessed by flow cytometry.Results The astrocyte model overexpressing P-glycoprotein were established and successfully transfected with the short-hairpin RNA expression vector-p-SIREN shuttle.The mRNA level of Mdrl gene was knocked down by 67.70%(P