Objective To investigate the value of clinical characteristics in diagnosis of vocal fold paralysis (VFP) and arytenoid dislocation .Methods Eighty - eight patients of VFP and 27 patients of arytenoid dislocation were studied , by comparing the causes , laryngeal morphologic characteristics and laryngeal electromyography (LEMG) .Results The causes of 88 VFP patients included surgery (45 cases) ,neck trauma(2 cases) ,idiopathic causes(16 cases) ,infection(16 cases) ,and tumor invasion - related(9 cases) .Of the 27 arytenoid dislocation pa‐tients ,24 had a history of endotracheal intubation and the others had a history of gastric tube insertion .The vocal folds were mostly fixed at the paramedian position ,followed by the abducent position and the median position .No significant differences were found in laryngeal morphologic characteristics between the two groups ,including vocal fold shape , glottis vertical symmetry , mucosal waves , supraglottic compensation , glottis closure and arytenoid movement .The LEMG of VFP patients appeared as denervation patterns ,reinnervation potentials ,or electrical si‐lence ;the recruitment patterns appeared as mix or simple patterns ;the evoked potentials were absent .Of the VFP patients ,54 cases(61 .36% % )were found synkinesis of involved posterior cricoarytenoid and two of them also in ‐volved thyroatenoid .The patients with synkinesis had lower percentage of vocal fold bowing and higher percentage of glottic vertical asymmetry compared to the ones without synkinesis .Of the VFP patients whose cause was surgery or neck trauma ,the median - position fixed vocal folds were mostly observed in the patients with duration of less than 1 month or with synkinesis .Of the 27 arytenoid dislocation patients ,20(74 .07% )showed normal LEMG pat‐terns and 7(25 .93% )showed apparent LEMG abnormality on the affected side .Conclusion The causes of vocal fold paralysis and arytenoid dislocation are different .Laryngeal morphologic characteristics have limitations in distinguis‐hing vocal fold paralysis from arytenoid dislocation .The shape and position of involved vocal folds of the VFP pa‐tients are correlated with duration ,nerve regeneration and synkinesis .

Objective To evaluate the protective effect of polysaccharide nucleic acid fraction of bacillus Calmette-Guerin (BCG-PSN) against atopic dermatitis (AD) in Nc/Nga mice,and to explore its possible mechanism.Methods Sixteen Nc/Nga mice were classified into normal control group (n =4),low-concentration BCG-PSN group (n=5) and high-concentration BCG-PSN group (n =7) to be subcutaneously injected with sodium chloride physiological solution,BCG-PSN of 0.1 mg/kg and 0.5 mg/kg respectively,at 1,8,15 and 22 days of age.Dinitrochlorobenzene (DNCB) was repeatedly and topically applied to these Nc/Nga mice to induce AD-like lesions at 49 days of age.The preventive effect of BCG-PSN against AD was evaluated by dermatitis scores,scratching frequency,histopathological manifestations and immunological parameters (including IgE,i nterleukin (IL)-4 and-12,and interferon (IFN)-γ).Results Repeated injection of BCG-PSN within 4 weeks after birth significantly decreased the severity of DNCB-induced AD-like lesions,dermatitis scores and scratching behavior in Nc/Nga mice.There was no statistical difference in scratching frequency between the high-and low-concentration BCG-PSN groups.BCG-PSN treatment reduced the plasma level of IgE in Nc/Nga mice in a dose-dependent manner.BCG-PSN at 0.5 mg/kg increased the number of cells secreting IFN-γ in skin lesions of mice.Both doses of BCG-PSN down-regulated IL-4 level,but up-regulated IL-12 level in the culture supernatant of spleen mononuclear cells from mice.Conclusion Early injection of BCG-PSN could protect Nc/Nga mice against dermatitis by promoting the proliferation of IFN-γ-secreting cells,increasing the synthesis of IL-12,and reducing the levels of IL-4 and IgE.

Adolescent ; Adult ; Aged ; Burns ; etiology ; microbiology ; Child ; Child, Preschool ; Drug Resistance, Bacterial ; Explosions ; Female ; Humans ; Male ; Middle Aged ; Wound Infection ; microbiology ; Young Adult

@@

Objective To realize the incidence of healthcare-associated infection (HAI),the rate of invasive procedure and related infection rate,use of antimicrobial agents and distribution of pathogens in gereral intensive care units (GICUs) of hospitals in China.Methods HAI cross-sectional investigation data of GICUs reported to China HAI Surveillance Net-work were summarized and analyzed.Results Of 1 313 hospitals,621(47.30%)had GICUs;a total of 5 887 patients were surveyed,1 634 patients developed 1 962 times of infection,HAI prevalence rate and case rate was 27.76% and 33.33%respectively.The main infection sites were lower respiratory tract(70.39%),urinary tract (12.79%)and blood(2.86%). The application rate of urinary catheter,arteriovenous catheter and ventilator was 53.52%(n=3 151),37.05%(n=2 181) and 35.62%(n=2 097)respectively,and related prevalence of urinary tract infection,pneumonia and blood stream infection was 4.67%,20.41%,and 0.60%,respectively,which accounting for 58.57%,30.99%,and 23.21 % of urinary tract infection,pneumonia and blood stream infection respectively,the overall prevalence of above invasive procedure-re-lated infection accounted for 29.97%(588/1 962)of the overall HAI prevalence.A total of 1 795 isolated pathogens causing HAI were detected,the top three were Pseudomonas aeruginosa (20.78%),Acinetobacter baumannii(17.99%)and Klebsiella pneumoniae (11 .64%).The usage rate of antimicrobial agents was 71 .58%(n=4 214), rate of specimens delivered for detection was up to 75.27%(2 553/3 392).Conclusion Prevalence and antimicrobial use in patients in GICUs are all high,all kinds of invasive procedure are frequent,30% of HAI are related to inva-sive procedure;infection caused by non-fermentative bacteria is serious,pathogen detection is well performed.

Objective To explore the clinical effect of both lower extremities exercise therapy on the prevention of deep vein thrombosis.Methods According to the randomized principal,200 cases of patients with limb paralysis caused by cerebrovascular disease were divided into the experimental group and the control group by random number table,and each group contained 100 cases.The experimental group was given both lower extremities exercise therapy in addition to routine care of limbs paralysis caused by cerebrovascular diseases.The control group received routine care and simple postoperative activity health education by nurses.The occurrence of deep venous thrombosis before the intervention and one month after intervention was evaluated in two groups.Results The incidence of deep vein thrombosis in the experimental group after intervention one month was lowered more significantly than that in the control group.Conclusions Both lower extremities exercise therapy can improve lower extremity venous blood flow velocity,and safely and effectively prevent the occurrence of DVT of patients with limb paralysis caused by cerebrovascular disease.

Aluminum Compounds ; toxicity ; Animals ; Animals, Newborn ; Apoptosis ; drug effects ; Cells, Cultured ; Cerebral Cortex ; cytology ; drug effects ; Chlorides ; toxicity ; Dose-Response Relationship, Drug ; Neurons ; cytology ; drug effects ; Rats ; Rats, Wistar

ObjectiveTo observe the effect of rehabilitation on fractures around knee treated with external fixation.Methods48 cases with the fractures around knee who accepted early rehabilitation after external fixation had been observed for 0.5～4 years.ResultsAll the cases came up to clinical healing standards within 7 months. According to Kolmert's standard, the rate of fine and good was 89.6%.ConclusionThere was satisfactory outcome treating fractures around knee with external fixation. Early rehabilitation is important to avoid the knee joint rigor.

Objective To investigate the reversal effect of the monomer of traditional Chinese medicine on muhidrug resistance(MDR) and its possible mechanism in K562/ADM cell line in vitro. Methods With different concentrations of baicalin, geniposide administered to K562/ADM cells, the proliferation of K562/ ADM cells was detected by the MTY assay. Expression of mdr-1 mRNA, Topo Ⅱ mRNA was measured by semi-quantitive RT-PCR. Results Thatbaicalin and geniposide could increase the sensitivity of K562/ADM cells to adriamycin, multiples of reversion were 1.95 times and 1.46 times. The proliferation of K562/ADM cells was in-hibited obviously by baicalin and geniposide, the level of mdr-1 mRNA expression was down-regulated and the Topo Ⅱ mRNA was up-regulated(P<0.01 ). Conclusion Baicalin and geniposide may reverse the multi-drag-resistance of K562/ADM cells, which was related to the down-regulation of mdr-1 expression and up-reg-ulation of Topo Ⅱ beta expression.

CD38 is a multifunctional enzyme expressed in a variety of mammalian tissues, its catalytic activity was involved in a wide range of physiological processes. Based on the reported inhibitor of human CD38 NADase, 33 purine derivatives were designed and synthesized. The biological activity assay showed that compounds 20 and 38 exhibited almost the same extent of inhibitory activities on human CD38 NADase as the lead compound H2. The results also revealed that small substituents at C-6 of purine ring gave no obvious effect on inhibitory activity, but phenylpropionyl moiety at N-2 could affect the binding mode of the compound with CD38. This study provides a reliable basis for future rational design of inhibitors for CD38.
ADP-ribosyl Cyclase 1 ; antagonists & inhibitors ; Enzyme Inhibitors ; chemical synthesis ; chemistry ; Humans ; Purines ; chemical synthesis ; chemistry