Objective To investigate changes of coagulation function in patients with high altitude polycythemia (HAPC) .Meth‐ods Activated partial thromboplastin time (APTT) ,prothrombin time (PT) ,thrombin time (TT) and fibrinogen (Fbg) were de‐tected and compared between 69 patients with HAPC and 60 healthy subjects (controls) .Results Fbg ,APTT and TT levels in pa‐tients with HAPC were higher than controls (P<0 .05) ,while the difference of PT was not significant (P>0 .05) .Dynamic obser‐vation indicated that comprehensive therapy could these recover coagulation function .Conclusion Hemorrhage and coagulation process in patients with HAPC could be very complicated ,including physiological adaptation and the process of physiology evolving into pathology .

Aged ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Male ; Middle Aged ; Phytotherapy ; Silicosis ; drug therapy ; Treatment Outcome

Objective To investigate the value of external counterpulsation and traction therapy on patients with vertebral artery insufficiency syndrome by use of transcranial Doppler (TCD). Methods Based on the criteria of clinical diagnosis, 86 patients with vertebral artery insufficiency syndrome and 60 healthy persons were examined by EME 4004 type TCD. The peak velocity (Vp) and mean velocity (Vm) of blood flow of the vertebral artery (VA) and basilar artery (BA) were detected and analyzed before and after rehabilitation treatment. Results The blood flow velocities of the vertebrobasilar artery (VBA) of the patient group were much lower than that of the control group ( P 0.05). Conclusion TCD examination while rotating neck could provide valuable information for the diagnosis and rehabilitation assessment of patients with vertebral artery insufficiency syndrome. External counterpulsation and traction therapy are effective in the treatment of the vertebral artery insufficiency syndrome.

Objective To explore optimized procedures and science decision-making methods for the triage in sanitary train and improve efficiency. Methods The work condition of triage was evaluated with queuing theory and mathematical models. Results The work of triage needs to be further optimized. The M/M/n model of queuing theory can improve efficiency, and then waiting-time that from triage site to specifically sickbed can be shorten consumedly. Conclusion The application and assistance decision on queuing theory in the triage can optimize organization plan and enhance work efficiency.

OBJECTIVETo examine the protective effect of Ginkgo biloba leaf extract (GbE) on learning and memory deficit induced by aluminum chloride (AlCl(3)), and explore its mechanisms.

METHODSThe rat models with learning and memory deficit were induced by administering via gastrogavage and drinking of AlCl(3) solution. And the model rats were treated with GbE at the dose of 50, 100, 200 mg/kg every day for 2 months accompanied with drinking of AlCl(3) solution, respectively. Their abilities of spatial learning and memory were tested by Morris water maze, and the acetylcholinesterase (AChE) activity in serum was assayed with chemical method, the AChE expression in hippocampus was observed by immunohistochemistry assay, and then quantitative analysis was done by BI 2000 image analysis system.

RESULTSLearning and memory deficit of rats could be induced by AlCl(3) solution (P < 0.01), and AChE expressions in rats hippocampus were increased (P < 0.01); GbE ameliorated learning and memory deficit and reduced AChE expression in rats hippocampus in a dose-dependent manner, while GbE significantly increased serum AChE activity at the dose of 200 mg/kg each day (P < 0.05).

CONCLUSIONGbE can ameliorate learning and memory deficit induced by AlCl(3), which may be due to its inhibition of the AChE expression in hippocampus.

Acetylcholinesterase ; metabolism ; Aluminum Compounds ; toxicity ; Animals ; Chlorides ; toxicity ; Dose-Response Relationship, Drug ; Ginkgo biloba ; Hippocampus ; enzymology ; Immunohistochemistry ; Male ; Maze Learning ; drug effects ; Memory Disorders ; chemically induced ; prevention & control ; Neuroprotective Agents ; therapeutic use ; Phytotherapy ; Plant Extracts ; therapeutic use ; Plant Leaves ; Plant Structures ; Rats ; Rats, Wistar ; Reaction Time

It′s reported that RNA-binding proteins ( RBP) play key roles in post-transcriptional regulation of eukaryotic genes.The aberrations of RBP are associated with a large number of human disorders , particularly autoimmune and neuro-logic diseases .The interaction between RNA and proteins has been widely explored since the development of the method known as RNA immunoprecipitation with differential display or microarray analysis (RIP-ChIP) around the year of 2000. Since then, diverse derivatives of the RIP-ChIP, such as ultraviolet crosslinking and immunoprecipitation ( CLIP), high-throughput sequencing of CLIP cDNA library (HITS-CLIP), photoactivatable -ribonucleoside-enhanced crosslinking and immunoprecipitation ( PAR-CLIP) , and individual nucleotide resolution CLIP ( iCLIP ) have been developed .All these methods have some advantages over the original RIP-ChIP and greatly facilitate the study of RBP-RNA interactions .Addi-tionally , aided by the next-generation sequencing , transcriptome-wide identification of RBP target sites has become possible and the RNA-binding site resolution of RBP has also improved to some degree .We introduced the basic principles and processes of the interactions between proteins and RNA , focusing on the advantages , disadvantages and prospect of the present genome-wide version of CLIP .

Objective To describe the characteristics of subclinical carotid atherosclerosis in urban or suburban populations to provide support for cardiovascular risk factors monitoring and health management.Methods A population-based cardiovascular epidemiology survey was conducted among 899 urban and 1202 suburban residents in Beijing from October 2002 to September 2007.Carotid plaque.intimamedia thickness(IMT),and lumen diameter were measured in the proximal,distal,and sinus segment of the carotid artery using duplex ultrasound.Arterial tension and the number of plaques were calculated and compared between the two groups.Results Mean common carotid IMT increased with age in both groups (P<0.05,respectively),and among all age groups IMT Was obviously thicker in suburban population than that in urban population (respectively,P<0.05).Independence of gender,the prevalence of plaques increased with age (P<0.05),and the number of plaques was higher in the suburban population than those in urban population in all age groups (P<0.05).However,aaerial tension decreased with age in both groups,especially in the suburban populations (P<0.05).Conclusion With the acceleration of urbanization and aging in China,cardiovascular risk factor monitoring and health management should focus on suburban and elderly populations.

OBJECTIVE To investigate the antibiotics-resistant genes in enterococci isolated from the 98th Hospital of PLA,Huzhou,Zhejiang Province,China.METHODS The antibiotics-resistant genes of TEM,aac(6′)/aph(2″),aph(3′)-Ⅲ,ant(2″)-Ⅰ,ant(4′,4″),ant(6)-Ⅰ,ermB,mefA,tetM,vanA,and vanB were analyzed by polymerase chain reaction(PCR) and verified by DNA sequencing in the 15 isolates of Enterococcus faecalis and 9 isolates of E.faecium.RESULTS The positive rate of the resistance genes of TEM,aac(6′)/aph(2″),aph(3′)-Ⅲ,ant(2″)-Ⅰ,ant(4′,4″),ant(6)-Ⅰ,(ermB,) mefA,tetM,vanA,and vanB in the 24 strains of enterococci tested were 37.5%,70.8%,25.0%,0.0%,0.0%,41.7%,75.0%,0.0%,41.7%,4.2%,and 4.2%,(respectively.) CONCLUSIONS The multidrug resistance of enterococci was a serious issue,and harbored antibiotics-resistance genes were the very important reasons of resistance to antibiotics in enterococci.

Objective:To investigate the relationship between sarcopenia and early renal dysfunction in elderly patients with type 2 diabetes mellitus(T2DM).Methods:A total of 198 elderly patients with T2DM aged over 60 years undergoing treatment in the Geriatric Department of Beijing Hospital from July 2018 to July 2019 were enrolled in this retrospective case-control study.The estimated glomerular filtration rate(eGFR)is calculated according to the CKD-EPI Cr-Cys formula.Based on the eGFR, the patients were divided into normal renal function group(n=63, in CKD 1 stage)and mild renal dysfunction group(n=135, in CKD 2-3a stage). All subjects underwent physical examination, laboratory examination and dual energy X-ray bone density examination. Results:The age, weight, body mass index, abdominal circumference, serum creatinine, cystatin C, uric acid, diastolic pressure, the proportions of diabetes and hypertension were lower, and the high-density lipoprotein cholesterol, appendicular skeletal muscle mass(ASM)and skeletal muscle mass index(SMI)were higher, in the normal renal function group than in the mild renal dysfunction group( P<0.05 or 0.01). Spearman correlation analysis showed that eGFR was positively correlated with SMI( r=0.343, P<0.01). Logistic regression analysis showed that body weight( OR=1.318, 95% CI: 1.091-1.594), uric acid( OR=1.007, 95% CI: 1.001-1.012), diastolic blood pressure( OR=1.072, 95% CI: 1.033-1.112), years of diabetes( OR=1.075, 95% CI: 1.013-1.142)were risk factors, and the LSM( OR=0.136, 95% CI: 0.047-0.392)and SMI( OR=0.778, 95% CI: 0.703-0.860)were protective factors for the early renal dysfunction in elderly patients with T2DM. Conclusions:Elderly patients with T2DM are often co-existed with sarcopenia.Sarcopenia is associated with early renal dysfunction in elderly patients with T2DM.

With the acceleration of the aging process in China, the incidence rates of coronary heart disease and cerebral infarction have significantly increased.And iodine contrast agent is often used in imaging diagnosis and percutaneous intervention therapy.The contrast medium is filtered from the glomerulus in its original form and is not absorbed by renal tubules.However, the accumulation of iodine contrast medium in the kidney can lead to acute kidney injury.Kidney is one of the most important excretory and endocrine organs in human body.The prevention and treatment of contrast-induced nephropathy(CIN)have been widely concerned.The incidence rate of contrast-induced renal damage is higher and the prognosis is poorer in the elderly than in the non-elderly due to the decline of organ function in the elderly.At present, the mechanism of action for oxygen free radicals in CIN of the elderly is still unclear.This article reviews the researches on the role of oxygen free radical in CIN of the elderly studied by domestic and foreign scholars in recent years.