Acquired Immunodeficiency Syndrome ; prevention & control ; therapy ; Communicable Disease Control ; Humans

In 1990,the concept of microembolic signal (MES) was put forward by Spencer et al for the first time.In 1995,the expert consensus of diagnostic criteria for MES was published in Stroke.Since then,microemboli detection had been widely used as the intraoperative monitoring indicators in cerebral angiography,intravascular stenting,and carotid endarterectomy for the prevention of thrombotic events in patients with carotid artery stenosis.In recent years,microemboli detection has become an evaluation means for carotid stenosis surgery,interventional treatment and drug antithrombotic therapy.

We observed 38 patients' breath frequency after different oxygen therapy according to their visit sequences and tolerance conditions.All patients with chronic obstructive pulmonary.disease (COPD) plus carbon dioxide retention from April 2008 to June 2011 were recruited at our hospital.Twentythree patients who could maintain SpO2≥92％ through inspiring O2 at ≤3.5 L/min were assigned into the first group.And another 15 subjects whose SpO2 could not reach 92％ at the same oxygen flow for 5 hours were assigned into the second group.The second group received an elevated oxygen flow until their SpO2 attained 92％ or so.But the maximal rate did not exceed 8 L/min even if SpO2 was below 92％.The state was maintained for 5 hours.Paired t-test showed PaO2 became elevated and PaCO2 decreased significantly on onset and termination of low oxygen flow in both groups.But the frequency of the second group's breaths per minute (BPM) had no significant differences.After elevating oxygen flow,the second group's BPM and PaCO2 on onset and termination were (19.4 ± 3.4) and (18.1 ± 2.6) perminute (P =0.038),(55.0 ±8.1) and (52.0 ±7.9) mm Hg (1 mm Hg =0.133 kPa) (P =0.030) respectively and the results showed significant decreases.But SpO2 was elevated [(85.8 ± 4.1) and (90.7 ± 2.4) mm Hg (P =0.000)].

Objective To explore the impact of insulin secretory function of adult islet cells from barium-alginate microencapsulation in vitro. Methods After weighting the pancreas,human pancreatic islets were isolated with type V collagenase and purified by Ficoll's discontinuous density gradient centrifugation.The islet cell yield and purity were evaluated with microscope by DTZ staining.Human islets were coated by barium-alginate microencapsulation,and the viability was assessed by insulin release assay in vitro.Results After isolation,the average number of islet was about 3600 ±447 per gram pancreas.It was about 2140±207 after purification with more than 70％ purity.At day 2,4 and 6 after islet cell culture in vitro,basal insulin concentrations from the culture medium was measured,and the mean insulin concentration (mU/L) in media of the microencapsulated islet group at 2nd,4th and 6th day were 3.302±1.63、3.504±1.10 and 2.921±1.13 respectively,and those non-microencapsulated islet group were 3.814 ± 1.49、4.175 ±1.60、3.617± 1.34.There were no significant differences between these two groups (P＞0.05).Conclusions The bioartificial pancreas has effective insulin secretory function in vitro without being affected by barium-alginate microencapsulation.

Acquired Immunodeficiency Syndrome ; prevention & control ; China ; Humans

Acquired Immunodeficiency Syndrome ; prevention & control ; Humans

The management of frailty in elderly patients with chronic kidney disease (CKD) has been receiving increasing attention.Frailty in elderly patients with CKD has a high incidence and is used for risk prediction of adverse outcomes,including death,hospitalization,falls,dialysis and so on.A range of pathophysiological changes caused by CKD,aging and multimorbidity work together to promote the development of frailty.Treatment for CKD patients with frailty includes mainly nutritional support,exercise,drug therapy and comprehensive intervention.This article reviews recent research progress concerning frailty in elderly CKD patients.

Objective To explore the long-time effects of hyperbaric oxygen(HBO) therapy on the promotion of intellectual rehabilitation in infants with severe hypoxic-ischemic encephalopathy(HIE). Methods Forty-seven infants with severe HIE were randomly divided into a HBO group(n=24) and a control group(n=23). All the infants were treated with routine therapy for three months,in addition to HBO treatment in the HBO group once a day for four courses of 10 d with the interval of 10~15 d. Neonatal Behavioral Neurological Assessment (NBNA)assay was employed at 7 and 28 d after born,and Bayley Scale of Infant Development (BSID)assay was got at two years in two groups, as well as Wechsler Preschool and Primary Scale of Intelligence(WPPSI)assay at five years, in order to evaluated the short-time and long-time effects of HBO on intellectual rehabilitation in infants with HIE. Results Compared with that in the control group, the score of NBNA in the HBO group was significantly higher at 28 d(P

We have observed the protective effects of indocin (IND), a potent inhibitor of pro-sglandins (PGs), on ototoxicity induced by furosemide (FU) using the synchronous recording technique of endocochlear potential (EP) and auditory action potential(AP) in guinea pigs. The FU group were found to have a mean decrease in EP of 65.1?5.6mV and AP amplitude 91.5?10.2%. In contrast, the animals in the FU+IND group had a much smaller reduction of EP(17.5 ?3.8mV) and AP amplitude(31.1?4.7%). The rate of return in EP and AP was much faster in the FU+IND group as compared with the other group. Our findings suggest that the ototoxicity of FU may be related to the mediation of PGs in the inner ear target tissues. IND can interrupt an increase in endogenous PGs in cochlear tissues triggered by FU injection by inhibiting the biological synthesis of PGs, thus effectively diminishing the ototoxicity induced by FU.

Objective To evaluate the value of cardiovascular digital imaging and echocardiography in diagnosis of transposition of the great arteries.Methods Thirty cases of transposition of the great arteries were examined with cardiovascular digital imaging technique,two-dimensional echocardiography and color Doppler.11 cases of them underwent surgery.A comparison was made between the data obtained and surgical findings.Results The rate of coincidence of digital imaging and echocardiography with operation in diagnosing transposition of the great arteries was 92.3%(36/39)and 84.6%(33/39) respectively.Both echocardiography and cardiovascular digital imaging techique could clearly show the abnormalities of the heart and great vessels.Echocardiography was sensitive to valvular pathological changes,though cardiovascular digital imaging was superior to echocardiography in demonstrating abnormalities of great arteries and systemic-pulmonary collateral circulations.Conclusion Combination of echocardiography with cardiovascular digital imaging technique can greatly improve the rate of diagnostic accuracy for transposition of the great arteries.