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A nanofibrous membrane fluorescent sensor for fluoride ions prepared by electrospinning and host-guest interaction
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Zhang, Huan

; Zhou, Chen

; Sun, Jing

; Li, Xiao

; Tang, Juan

Matéria (Rio de Janeiro)

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2021, Volume 26 N. 2 elocation e12958

Abstract: En | Text: En | PDF: En

ABSTRACT A novel inclusion complexes nanofibrous membrane fluorescent sensor was prepared for recognizing F- via electrospinning and host–guest interaction. The host α-cyclodextrin on the surface of the electrospun nanofiber membrane is assembled into the guest azobenzene molecule which modified with F- fluorescent probe, and the formation of the inclusion complex is fixed on the surface of the nanofibrous membrane without external force, to prepare a novel surface controllable composite nanofiber membrane for F- detection. The inclusion complexes nanofibrous membrane exhibited favourable sensitivity and selectivity for F-. The introduction of F- would result in notable fluorescent decreasing of the membrane, but the other most common anions would not disturb the detection of F-. Moreover, this nanofibrous membrane was not only a fluorescent sensor for detecting F-, but also a good adsorbent for F- in solution.

https://doi.org/10.1590/s1517-707620210002.1258 117 downloads

Debonding behavior and interfacial stress in carbon fiber-reinforced polymer plate-strengthened top flange of box-girder bridge
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Yuan, Xin

; Sun, Chen

; Li, Qinqing

; Zhu, Chaoyu

; Tang, Shoujing

Latin American Journal of Solids and Structures

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2021, Volume 18 N. 4 elocation e371

Abstract: En | Text: En | PDF: En

Abstract The interfacial stress in a carbon fiber-reinforced polymer (CFRP) plate for strengthening the top flange of a box-girder bridge was theoretically investigated. According to the force analysis results of the box-girder structure, the most unfavorable force area was selected for modeling analysis. Using the simplified beam model, a CFRP plate-concrete interfacial-stress calculation model was derived, and the closed-form solution of the calculation model was obtained. Equivalent simplified test specimens were designed according to the box-girder structure to verify the reliability of the theoretical model. Then, four-point bending tests of the sample were performed. In these tests, the debonding failure modes and strain in the CFRP plate were examined. The CFRP plate-concrete interfacial stress was calculated according to the strain data of the CFRP plate in the experimental tests. Then compared the experimental results with the theoretical results. Furthermore, the corresponding interfacial stresses were calculated and compared according to the different load levels specified in the code. A series of theoretical and experimental comparisons were performed to verify the reliability of the proposed CFRP-concrete interfacial stress closed-form solution model.

https://doi.org/10.1590/1679-78256271 127 downloads

Role of adiponectin in diabetes myocardial ischemia-reperfusion injury and ischemic postconditioning
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Cao, Chen

; Liu, Hui-min

; Li, Wei

; Wu, Yang

; Leng, Yan

; Xue, Rui

; Chen, Rong

; Tang, Ling-hua

; Sun, Qian

; Xia, Zhongyuan

; Tang, Qi-zhu

; Shen, Di-fei

; Meng, Qing-tao

Acta Cirúrgica Brasileira

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2020, Volume 35 N. 1 elocation e202000107

Abstract: En | Text: En | PDF: En

Abstract Purpose Patients with diabetes are vulnerable to myocardial I/R (ischaemia/reperfusion) injury, but are not responsive to IPO (ischaemic post-conditioning). We hypothesized that decreased cardiac Adiponectin (APN) is responsible for the loss of diabetic heart sensitivity to IPO cardioprotecton. Methods Diabetic rats were subjected to I/R injury (30 min of LAD occlusion followed by 120 min of reperfusion). Myocardial infarct area was determined by TTC staining. Cardiac function was monitored by a microcatheter. ANP, 15-F2t-isoprostane, nitrotyrosine and MDA were measured by assay kits. Levels of p-Akt, total-Akt and GAPDH were determined by Western Blot. Results Diabetic rats subjected to myocardial IR exhibited severe myocardial infarction and oxidative stress injury, lower APN in the plasma and cardiac p-Akt expression ( P <0.05). IPO significantly attenuated myocardial injury and up-regulated plasma APN content and cardiac p-Akt expression in non-diabetic rats but not in diabetic rats. Linear correlation analysis showed that the expression of adiponectin was positively correlated with p-Akt and negatively correlated with myocardial infarction area ( P <0.01). Conclusion Protective effect of IPO was tightly correlated with the expression of adiponectin, exacerbation of I/R injury and ineffectiveness of IPO was partially due to the decline of adiponectin and inactivation of Akt in diabetes mellitus.

https://doi.org/10.1590/s0102-865020200010000007 882 downloads

Development and psychometric evaluation of the Mandarin Chinese version of the Yale-Brown Obsessive-Compulsive Scale – Second Edition
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Zhang, Chen C.

; Gong, Hengfen

; Zhang, Yingying

; Jin, Haiyan

; Yang, Yong

; Li, Bin

; Li, Yongchao

; Luo, Xiao

; Liu, Wenjuan

; Fang, Fang

; Li, Bin

; Sun, Bomin

; Fletcher, Terri

; La Buissonnière-Ariza, Valerie

; Goodman, Wayne K.

; Storch, Eric A.

Brazilian Journal of Psychiatry

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dec 2019, Volume 41 N. 6 Pages 494 - 498

Abstract: En | Text: En | PDF: En

Objective: To examine the psychometric properties of the Chinese version of the Yale-Brown Obsessive Compulsive Scale – Second Edition (Y-BOCS-II). Method: A total of 86 adults with a primary diagnosis of obsessive-compulsive disorder (OCD), ranging in age from 15 to 78 years, participated in the study. Participants were administered the Y-BOCS-II by a trained clinician who also rated overall illness severity on two additional measures. Patients completed the Obsessive Compulsive Inventory-Revised and Depression Anxiety Stress Scale-21. Results: Results indicated high internal consistency and fair 1-week test retest reliability. The Y-BOCS-II scales correlated strongly with clinician-rated obsessive-compulsive severity and modestly with self-reported obsessive-compulsive symptom frequency and distress. The relationship between Y-BOCS-II total score and depressive and anxiety symptoms was strong, which may reflect high rates of comorbid conditions in this sample or the linkage between obsessive-compulsive symptom severity and distress. Factor analysis demonstrated a two-factor structure consisting of obsession and compulsion factors, with interference due to obsessions cross-loading. Conclusions: Overall, these results support the use of the Y-BOCS-II among individuals from China. Future study by an independent group is necessary to replicate these findings, as well as investigate interrater reliability and treatment sensitivity.

https://doi.org/10.1590/1516-4446-2018-0126 775 downloads

Two-shift operation mode can improve the efficiency and comfort of flexible ureteroscopic holmium laser lithotripsy for the treatment of renal calculi larger than 1.5cm
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Hui, Sun

; Qingya, Yang

; Xinbao, Yin

; Ming, Liu

; Gonghui, Li

; Jun, Chen

International braz j urol

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nov 2019, Volume 45 N. 6 Pages 1161 - 1166

Abstract: En | Text: En | PDF: En

ABSTRACT Purpose: To compare two-shift operation mode and single player mode different impact on surgical results and operator comfort in flexible ureteroscopic holmium laser lithotripsy for renal calculi larger than 1.5cm. Materials and Methods: From december 2017 to december 2018, 92 patients with renal calculi admitted to Qilu Hospital and were treated through flexible ureteroscopy. They were randomized in two-shift group (n=50) and single player group (n=42). The operative time, blood loss, hospitalization stay after operation, residual fragments (≥4mm) rate, fragmentation speed, postoperative complications and operator's fatigue score were compared. Results: There was no significant difference between two groups regarding age, gender, illness side, stone size, blood loss, operative time, postoperative hospitalization stay, complications, etc (p >0.05). The fragmentation speed was 44.5±20.0mm3/min in two-shift group compared with 34.2±17.3mm3/min in single player group (p=0.037). Residual fragments (≥4mm) rate after first surgery was 18% in two-shift group, while the residual fragments (≥4mm) rate was 40.5% after first surgery in single player group (p=0.017). The total fatigue score of two-shift group was 8.4 compared to 29.9 in single player group (p <0.001). Conclusion: In flexible ureteroscopic holmium laser lithotripsy for the treatment of renal calculi larger than 1.5cm, two-shift operation mode can raise the fragmentation speed and stone clearance rate, as well as significantly lower operator's fatigue level and improve operator's comfort.

https://doi.org/10.1590/s1677-5538.ibju.2019.0219 638 downloads

Downregulation of lncRNA CCDC26 contributes to imatinib resistance in human gastrointestinal stromal tumors through IGF-1R upregulation
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Yan, Jingyi

; Chen, Didi

; Chen, Xiaolei

; Sun, Xuecheng

; Dong, Qiantong

; Hu, Changyuan

; Zhou, Feng

; Chen, Wei

Brazilian Journal of Medical and Biological Research

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2019, Volume 52 N. 6 elocation e8399

Abstract: En | Text: En | PDF: En

Imatinib is the first line of therapy for patients with metastatic or gastrointestinal stromal tumors (GIST). However, drug resistance limits the long-term effect of imatinib. Long non-coding RNAs (lncRNAs) are emerging as key players in regulating drug resistance in cancer. In this study, we investigated the association between lncRNA CCDC26 and IGF-1R in GIST and their involvement in drug resistance. Considering the key role of lncRNAs in drug resistance in cancer, we hypothesized that IGF-1R is regulated by lncRNAs. The expression of a series of reported drug resistance-related lncRNAs, including CCDC26, ARF, H19, NBR2, NEAT1, and HOTAIR, in GIST cells treated with imatinib H19 was examined at various time-points by qRT-PCR. Based on our results and published literature, CCDC26, a strongly down-regulated lncRNA following imatinib treatment, was chosen as our research target. GIST cells with high expression of CCDC26 were sensitive to imatinib treatment while knockdown of CCDC26 significantly increased the resistance to imatinib. Furthermore, we found that CCDC26 interacted with c-KIT by RNA pull down, and that CCDC26 knockdown up-regulated the expression of IGF-1R. Moreover, IGF-1R inhibition reversed CCDC26 knockdown-mediated imatinib resistance in GIST. These results indicated that treatments targeting CCDC26-IGF-1R axis would be useful in increasing sensitivity to imatinib in GIST.

https://doi.org/10.1590/1414-431x20198399 970 downloads

Familial progressive hyper- and hypopigmentation: a report on a Chinese family and evidence for genetic heterogeneity
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Xiao-Kai, Fang

; Yue-Xi, He

; Yan-Jia, Li

; Li-Rong, Chen

; He-Peng, Wang

; Qing, Sun

Anais Brasileiros de Dermatologia

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jun 2017, Volume 92 N. 3 Pages 329 - 333

Abstract: En | Text: En | PDF: En

Abstract Background: Familial progressive hyper- and hypopigmentation (FPHH) is a rare genodermatosis that is characterized by diffuse hyper- and hypopigmented spots on the skin and mucous membranes. It is caused by a pathogenic mutation of the KITLG gene. Objectives: To investigate the clinical features and mutation of the KITLG gene in a Chinese family with FPHH. Methods: Histopathological and immunohistochemical analysis of lesions from the proband was performed. The KITLG gene was screened for the presence of mutations. Results: A Chinese family containing 14 individuals with FPHH was described, and the proband was a 5-year-old girl showing diffuse hyper- and hypopigmented lesions on her extremities and trunk. Histopathological and immunohistochemical staining for S100 and HMB45 of skin biopsy specimens from the hyperpigmented areas showed a striking increase in melanin throughout the epidermis, especially in the basal cell layer, and staining of hypopigmented area specimens displayed lower levels of melanin in the epidermis. Mutation analysis of the KITLG gene was performed, but no mutation was found. Study limitations: The new pathogenic gene was not found. Conclusion: A family with FPHH was described. Analysis revealed that its members did not have any mutations of the KITLG gene, which provided evidence for genetic heterogeneity of this genodermatosis.

https://doi.org/10.1590/abd1806-4841.20175567 1216 downloads

Synthesis of Star-Shaped Lead Sulfide (PbS) Nanomaterials and theirs Gas-Sensing Properties
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Song, Chengwen

; Sun, Menghan

; Yin, Yanyan

; Xiao, Jingkun

; Dong, Wei

; Li, Chen

; Zhang, Li

Materials Research

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dec 2016, Volume 19 N. 6 Pages 1351 - 1355

Abstract: En | Text: En | PDF: En

Star-shaped PbS nanomaterials are synthesized by a hydrothermal method. Morphology and structure of the PbS nanomaterials are analyzed by SEM, HRTEM and XRD. Gas-sensing properties of the as-prepared PbS sensor are also systematically investigated. The results show star-shaped PbS nanostructure consists of four symmetric arms in the same plane and demonstrate good crystallinity. With the increase of ethanol concentration, the sensitivity of the PbS sensor significantly increases and demonstrates an almost linear relationship at the optimal operating temperature of 400 ºC. Moreover, the fast response-recovery towards ethanol is also observed, which indicates its great potential on ethanol detection.

https://doi.org/10.1590/1980-5373-mr-2015-0683 1775 downloads

Research on Value Assessment and Compensation for Health Hazards of Urban Air Pollution-A Case Study of Urumqi
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Yu, Chen

; Hui, Sun

Brazilian Archives of Biology and Technology

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2016, Volume 59 N. spe elocation e16160503

Abstract: En | Text: En | PDF: En

ABSTRACT With the acceleration of urbanization and industrialization, urban air pollution has become a serious threat to the health of urban residents. In this study, to investigate health hazards caused by air pollution for urban residents, concentrations of main air pollutants and annual coal consumption amounts during the period from 2000 to 2013 were analyzed. Our results showed that economic losses of Urumqi caused by air pollution amounted to 63.155 million yuan in 2013, accounting for 0.2 ‰ of its GDP and 5.7% of public utility expenditures for that year. The compensation mechanism analysis suggested that it is necessary to further improve the health care system and increase corporate environmental taxes. More environmental health protection taxes should be levied on key monitoredenterprises in Urumqi to achieve effective compensations for urban residents affected by air pollution-related health hazards.

https://doi.org/10.1590/1678-4324-2016160503 10404 downloads

10.

Cost-effectiveness of a comprehensive programme for drug-resistant tuberculosis in China
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Fitzpatrick, Christopher

; Hui, Zhang

; Lixia, Wang

; Renzhong, Li

; Yunzhou, Ruan

; Mingting, Chen

; Yanlin, Zhao

; Jin, Zhao

; Wei, Su

; Caihong, Xu

; Cheng, Chen

; Alston, Timothy

; Yan, Qu

; Chengfei, Lv

; Yunting, Fu

; Shitong, Huan

; Qiang, Sun

; Scano, Fabio

; Chin, Daniel P

; Floyd, Katherine

Bulletin of the World Health Organization

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nov 2015, Volume 93 N. 11 Pages 775 - 784

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Résumé Objectif Étudier le rapport coût-efficacité d'un programme global de lutte contre la tuberculose pharmacorésistante lancé en 2011 dans quatre régions chinoises. Méthodes En 2011-2012, nous avons analysé les dossiers de 172 patients atteints de tuberculose pharmacorésistante qui s'étaient inscrits à ce programme global et nous avons collecté des données administratives pertinentes auprès de différents hôpitaux et de l'agence de santé publique chinoise. À titre de comparaison, nous avons examiné une cohorte de 81 patients soignés pour une tuberculose pharmacorésistante entre 2006 et 2009. Nous avons réalisé une analyse coût-efficacité, sur le plan sociétal, qui incluait une incertitude probabiliste. Nous avons mesuré les résultats du traitement précoce en fonction de résultats de culture sur trois mois et modélisé les résultats à long terme pour faciliter l'estimation du coût du programme global par année de vie corrigée du facteur incapacité (AVCI) évitée. Résultats Le programme global coûte 8837 dollars des États-Unis (US$) par patient soigné. Le faible taux d'inscription signifiait que certains coûts fixes par patient étaient plus importants que prévu. Bien que ce programme global se soit révélé 30 fois plus cher que le précédent, il a débouché sur des avantages accrus en matière de santé. Le programme global, qui coûte 639 US$ (intervalle de crédibilité à 95 %: 112 à 1322) par AVCI évitée, satisfait au critère de l'Organisation mondiale de la Santé définissant une intervention très rentable. Conclusion Le programme global, qui incluait un dépistage rapide, des soins standardisés et une protection financière, a amélioré les résultats des patients atteints de tuberculose multirésistante en limitant les dépenses. Afin de soutenir les objectifs mondiaux pour l'après-2015 en matière de santé, le programme global devrait être élargi aux non-résidents et à d'autres régions de Chine.

Abstract Objective To investigate the cost-effectiveness of a comprehensive programme for drug-resistant tuberculosis launched in four sites in China in 2011. Methods In 2011-2012, we reviewed the records of 172 patients with drug-resistant tuberculosis who enrolled in the comprehensive programme and we collected relevant administrative data from hospitals and China's public health agency. For comparison, we examined a cohort of 81 patients who were treated for drug-resistant tuberculosis in 2006−2009. We performed a cost-effectiveness analysis, from a societal perspective, that included probabilistic uncertainty. We measured early treatment outcomes based on three-month culture results and modelled longer-term outcomes to facilitate estimation of the comprehensive programme's cost per disability-adjusted life-year (DALY) averted. Findings The comprehensive programme cost 8837 United States dollars (US$) per patient treated. Low enrolment rates meant that some fixed costs were higher, per patient, than expected. Although the comprehensive programme appeared 30 times more costly than the previous one, it resulted in greater health benefits. The comprehensive programme, which cost US$ 639 (95% credible interval: 112 to 1322) per DALY averted, satisfied the World Health Organization's criterion for a very cost-effective intervention. Conclusion The comprehensive programme, which included rapid screening, standardized care and financial protection, improved individual outcomes for MDR tuberculosis in a cost-effective manner. To support post-2015 global heath targets, the comprehensive programme should be expanded to non-residents and other areas of China.

Resumen Objetivo Investigar la costoeficacia de un programa integral para la tuberculosis farmacorresistente lanzado en cuatro localizaciones de China en 2011. Métodos En 2011-2012, se revisaron los informes de 172 pacientes con tuberculosis farmacorresistente que se habían inscrito en el programa integral y se recogieron datos administrativos relevantes de hospitales y la agencia de salud pública de China. Como término de comparación, se examinó un cohorte de 81 pacientes que habían sido tratados para la tuberculosis farmacorresistente en 2006−2009. Se llevó a cabo un análisis de costoeficacia desde una perspectiva societaria que incluía la incertidumbre probabilística. Se midieron los resultados de los tratamientos tempranos basados en los resultados de un cultivo de tres meses y se modelaron resultados a largo plazo para facilitar la estimación del coste del programa integral de años de vida en función de la discapacidad (AVAD) evitada. Resultados El programa integral costó 8.837 dólares estadounidenses (USD) por paciente tratado. Las bajas tasas de inscripción significaban que algunos de los costes fijos eran mayores por paciente que lo esperado. A pesar de que el programa integral parecía 30 veces más costoso que el anterior, tuvo como resultado unos mejores beneficios para la salud. El programa integral, que costó 639 USD (intervalo de credibilidad del 95%: de 112 a 1.322) por AVAD evitado, satisfizo el criterio de la Organización Mundial de la Salud en cuanto a intervenciones muy costoefectivas. Conclusión El programa integral, que incluía un examen rápido, cuidados estándar y protección financiera, mejoró los resultados individuales de la tuberculosis multirresistente (MR) de una manera costoefectiva. Para apoyar los objetivos de salud globales posteriores a 2015, el programa integral debería expandirse a no residentes y otras áreas de China.

https://doi.org/10.2471/BLT.14.146274 1323 downloads

11.

ROC curves of obesity indicators have a predictive value for children hypertension aged 7-17 years
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Tai-shun, Li

; Wen-jie, Sun

; Ming-wei, Wei

; Shi-hong, Chen

; Peng, Wang

; Xu-lin, Wang

; Lian-ping, He

; Yu-feng, Wen

Nutrición Hospitalaria

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aug 2014, Volume 30 N. 2 Pages 275 - 280

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

Objective: The aim of the study is to examine the distribution of integrated covariate and its association with blood pressure (BP) among children in Anhui province, China, and assess the predictive value of integrated covariate to children hypertension. Methods: A total of 2,828 subjects (1,588 male and 1,240 female) aged 7-17 years participated in this study. Height, weight, waistline, hipline and BP of all subjects were measured, obesity and overweight were defined by an international standard, specifying the measurement, the reference population, and the age and sex specific cut off points. High BP status was defined as systolic blood pressure (SBP) and/or diastolic blood pressure (DBP) > 95th percentile for age and gender. Results: Our results revealed that the prevalence of children hypertension was 11.03%, the SBP and DBP of obesity group were significantly higher than that of normal group. Anthropometric obesity indices such as body mass index (BMI) were positively correlated with SBP and DBP. Integrated covariate had a better performance than the single covariate in the receiver-operating characteristic (ROC) curve, the cut-off value; the sensitivity and the specificity of the integrated covariate were 0.112, 0.577, 0.683, respectively. Conclusion: Integrated covariate is a simple and effective anthropometric index to identify childhood hypertension.

Objetivo: El objetivo del estudio es examinar la distribución de las covariables integrado y su asociación con la presión arterial (PA) entre los niños en la provincia de Anhui, China, y evaluar el valor predictivo de covariables integrado a los niños la hipertensión. Métodos: Un total de 2.828 sujetos (1.588 macho y 1.240 hembra) de 7 a 17 años participaron en este estudio. Altura, peso, cintura, hipline y BP de todos los sujetos fueron medidos, la obesidad y el sobrepeso se han definido por una norma internacional, especificando la medición, la población de referencia, y la edad y sexo los puntos de corte. La condición de alta presión se define como la presión arterial sistólica (PAS) y/o presión arterial diastólica (PAD) > percentil para edad y sexo. Resultados: Nuestros resultados revelan que la prevalencia de niños la hipertensión fue 11,03%, el SBP y DBP de obesidad grupo fueron significativamente más alta que la de grupo normal. Los índices de obesidad, tales como el índice de masa corporal (IMC) se correlacionaron positivamente con SBP y DBP. Integrated covariable tuvo un mejor rendimiento que la covariable en la curva de características operativas del receptor (ROC), el valor de corte, la sensibilidad y la especificidad de las covariables fueron integrados 0,112, 0,577,0,683, respectivamente. Conclusión: Integrado covariable es un simple y eficaz para identificar a la niñez índice antropométrico hipertensión.

https://doi.org/10.3305/nh.2014.30.2.7571 312 downloads

12.

Massive and painful ascites as a presenting manifestation of systemic lupus erythematosus flare: a case report and literature review
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Zhou, Lei

; Ming Sun, Chen

; Li Chen, Wen

; Zhang, Heng

; Wang, Ping

; Wu, Jie

Revista médica de Chile

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feb 2014, Volume 142 N. 2 Pages 255 - 260

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

Lupus peritonitis (LP) is extremely rare. Acute LP is characterized by rapid onset of ascites and severe abdominal pain, in addition to other well-recognized clinical features of a general systemic lupus erythematosus (SLE) fare. Ascites associated with acute LP has been rarely reported as the prominent feature of a SLE fare. We report a 39-year-old woman who developed massive, painful ascites as the presenting manifestation of a SLE fare. Diagnostic workup ruled out the possibility of hepatic, cardiovascular, infectious, or malignant diseases, and confirmed the presence of a SLE fare. The patient was treated with methyl prednisolone and hydroxychloroquine resulting in dramatic improvement of her condition. During ambulatory follow up, she has remained asymptomatic up to the moment of this writing. Adrenal steroids and hydrocychloroquine may be useful for the management of SLE fares in patients with massive, painful ascites due to acute LP.

La peritonitis lúpica es rara. El cuadro agudo se caracteriza por ascitis de comienzo rápido, dolor abdominal severo y otras manifestaciones de una recidiva de un lupus eritematoso sistémico (LES). Sólo ocasionalmente e ha informado que la ascitis y peritonitis lúpica sean las principales manifestaciones de una recidiva lúpica. Presentamos a una mujer de 39 años que presentó ascitis masiva y dolorosa como la primera manifestación de una reactivación lúpica. El estudio diagnóstico descartó problemas hepáticos, pulmonares, cardiacos, cáncer o infecciones y confirmó la reactivación lúpica. La paciente se trató con metilprednisolona y cloroquina, resultando en una mejoría dramática. Al momento de preparar este informe, la paciente permanece asintomática en control ambulatorio. Los corticoides y cloroquina pueden ser medicamentos útiles para el tratamiento de pacientes con ascitis dolorosa y masiva secundaria a peritonitis lúpica.

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13.

Effect of the trap color on the capture of ichneumonids wasps (Hymenoptera)
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TAO, LI

; MAO-LING, SHENG

; SHU-PING, SUN

; GUO-FA, CHEN

; ZHI-HONG, GUO

Revista Colombiana de Entomología

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dec 2012, Volume 38 N. 2 Pages 347 - 350

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Se compararon las respuestas de ichneumónidos adultos ante trampas con colores, medidas por la eficiencia de trampas estandarizadas de intercepción con siete colores diferentes, en Liupanshan, Daxinggou y Xinbin (China). Los ichneumónidos capturados se agruparon en 13 subfamilias: Anomaloninae, Banchinae, Campopleginae, Cryptinae, Ctenopelmatinae, Diplazontinae, Ichneumoninae, Mesochorinae, Ophioninae, Orthocentrinae, Phrudinae, Pimplinae y Tryphoninae. Los resultados del trampeo en campo revelan que las trampas amarillas y verdes atraparon más ichneumónidos que las de otros colores. El negro fue el color menos eficiente en la colecta de ichneumónidos en Liupanshan y Xinbin. En esta ciudades, los especímenes más frecuentemente colectados pertenecían a las subfamilias Ctenopelmatinae, Campopleginae y Cryptinae, mientras que los de Phrudinae, Ophioninae y Diplazontinae fueron los de menor colecta. Sin embargo, en Daxinggou, las trampas negras y amarillas atraparon más ichneumónidos que las de otros colores. En este sitio las trampas blancas fueron las menos efectivas. La mayoría de las capturas en este sitio fueron Campopleginae y Cryptinae, mientras que una pequeña fracción de especímenes lo fue de las subfamilias Banchinae, Phrudinae, Ophioninae y Diplazontinae.

The responses of adult ichneumonids to colors were studied through comparing the effectiveness of standardized interception traps in seven different colors, in Liupanshan, Daxinggou and Xinbin (China). The captured ichneumonids belonged to 13 subfamilies: Anomaloninae, Banchinae, Campopleginae, Cryptinae, Ctenopelmatinae, Diplazontinae, Ichneumoninae, Mesochorinae, Ophioninae, Orthocentrinae, Phrudinae, Pimplinae, and Tryphoninae. Field trapping results indicated that yellow and green traps collected more ichneumonids than did the traps of other colors. Black was the least efficient color for collecting ichneumonids in Liupanshan and Xinbin. The most frequently collected specimens were from the subfamilies Ctenopelmatinae, Campopleginae and Cryptinae, while the least frequently collected were from Phrudinae, Ophioninae and Diplazontinae in Liupanshan and Xinbin. In Daxinggou, black and yellow traps collected more ichneumonids than did other color traps, with white traps collecting the least. Most captured ichneumonids at this site were from Campopleginae and Cryptinae, whereas only a small number of specimens were collected from Banchinae, Phrudinae, Ophioninae and Diplazontinae were collected.

2216 downloads

14.

Practice audits to reduce caesareans in a tertiary referral hospital in south-western China
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Runmei, Ma

; Terence T, Lao

; Yonghu, Sun

; Hong, Xiao

; Yuqin, Tian

; Bailuan, Li

; Minghui, Yang

; Weihong, Yang

; Kun, Liang

; Guohua, Liang

; Hongyu, Li

; Li, Geng

; Renmin, Ni

; Wenjin, Qi

; Zhuo, Chen

; Mingyu, Du

; Bei, Zhu

; Jing, Xu

; Yanping, Tao

; Lan, Zhang

; Xianyan, Song

; Zaiqing, Qu

; Qian, Sun

; Xiaoyun, Yi

; Jihui, Yu

; Dandan, Zhang

Bulletin of the World Health Organization

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jul 2012, Volume 90 N. 7 Pages 488 - 494

Abstract: En Es Fr | Text: En Es Fr | PDF: En | PDF: Es | PDF: Fr

OBJECTIVE: To assess the effectiveness of a three-stage intervention to reduce caesarean deliveries in a Chinese tertiary hospital. METHODS: A retrospective study was conducted to assess whether educating staff, educating patients and auditing surgeon practices (introduced in 2005) had reduced caesarean delivery rates. Multiple logistic regression was used to check for a potential association between caesarean rates and rates of admission to the neonatal intensive care unit (NICU). FINDINGS: The caesarean delivery rate ranged from 53.5% to 56.1% in 2001-2004 and from 43.9% to 36.1% in 2005-2011. When 2001-2004 and 2005-2011 were treated as "before" and "after" periods to evaluate the intervention's impact on the mean caesarean section rate, a significant reduction was noted: from 54.8% to 40.3% (odds ratio, OR: 0.56; 95% confidence interval, CI: 0.52-0.59; χ2 test: P < 0.001). The overall drop in the caesarean section rate was significant (χ2 test: P < 0.001) and inversely correlated with the years (Spearman's ρ: -0.096; P < 0.001). Although complicated pregnancies increased after 2004, the primary caesarean section rate decreased annually by 20% on average in 2005-2011, after practice audits were implemented. Multiple logistic regression showed a positive association between the caesarean delivery rate and the rate of admission to the NICU (adjusted OR: 1.26; 95% CI: 1.14-1.40). CONCLUSION: Patient and staff education and practice audits reduced the Caesarean section rate in a tertiary referral hospital without an increase in admissions to the NICU.

OBJETIVO: Evaluar la eficacia de una intervención en tres etapas para reducir los partos por cesárea en un hospital de atención terciaria en China. MÉTODOS: Se realizó un estudio retrospectivo para evaluar si el programa educativo para el personal y los pacientes y la auditoría de las prácticas de los cirujanos (que se pusieron en marcha en el año 2005) habían disminuido la tasa de partos por cesárea. Se empleó una regresión logística múltiple para comprobar la posible relación entre la tasa de cesáreas y la tasa de admisión en la unidad de cuidados intensivos neonatales (UCIN). RESULTADOS: La tasa de partos por cesárea osciló entre el 53,5% y el 56,1% entre 2001 y 2004 y entre el 43,9% y el 36,1% entre 2005 y 2011. Se constata una reducción significativa en la misma si se consideran los años 2001-2004 y 2005-2011 como periodos «antes» y «después» para evaluar el impacto de la intervención sobre la tasa media de partos por cesárea: del 54,8% al 40,3% (razón de posibilidades, OR: 0,56; intervalo de confianza, IC, del 95%: 0,54 - 0,59; χ2test P<0,001). La disminución general en la proporción de cesáreas fue significativa (χ2 test: P<0,001) y estuvo relacionada de forma inversa con los años (correlación de Spearman ρ: -0,096; P<0,001). A pesar del aumento de embarazos complicados después de 2004, la tasa de cesáreas primarias disminuyó anualmente hasta un 20% de media entre los años 2005-2011 después de haber puesto en marcha las auditorías de las prácticas. La regresión logística múltiple mostró una relación positiva entre la tasa de partos por cesárea y la tasa de admisión en la unidad de cuidados intensivos neonatales UCIN (OR ajustada: 1,26; IC del 95%: 1,14-1,40). CONCLUSIÓN: El programa educativo para el personal y los pacientes, así como las auditorías de las prácticas redujeron la tasa de cesáreas en un hospital de atención terciaria sin aumentar el número de admisiones en la UCIN.

OBJECTIF: Evaluer l'efficacité d'une intervention en trois étapes pour réduire les accouchements par césarienne dans un hôpital de troisième ligne chinois. MÉTHODES: Une étude rétrospective a été menée afin de déterminer si l'éducation du personnel, l'éducation des patients et l'audit des pratiques des chirurgiens (introduit en 2005) avaient réduit les taux d'accouchement par césarienne. Une régression logistique multiple a été utilisée pour vérifier une éventuelle corrélation entre les taux de césarienne et les taux d'admission à l'unité de soins intensifs néonataux. RÉSULTATS: Le taux de césarienne variait de 53,5% à 56,1% en 2001-2004 et de 43,9% à 36,1% en 2005-2011. Lorsque 2001-2004 et 2005-2011 ont été traités en tant que périodes "avant" et "après" pour évaluer l'impact des interventions sur le taux moyen de césarienne, une réduction significative a été mise en évidence: de 54,8% à 40,3% (rapport des chances, OR: 0,56; intervalle de confiance à 95%, IC: 0,52 à 0,59; test de χ2: P <0,001). La baisse globale du taux de césarienne était significative (test de χ2: P <0,001) et inversement corrélée avec les années (ρ de Spearman: -0,096; P <0,001). Bien que les grossesses compliquées aient augmenté après 2004, le taux de césarienne primaire a diminué chaque année de 20% en moyenne en 2005-2011, après que l'audit de bonnes pratiques ait été mis en œuvre. Une régression logistique multiple a montré une corrélation positive entre le taux de naissance par césarienne et le taux d'admission à l'unité de soins intensifs néonataux (OR ajusté: 1,26, IC 95%: 1,14 à 1,40). CONCLUSION: L'éducation des patients et du personnel ainsi que l'audit de bonnes pratiques ont réduit le taux de césarienne dans un hôpital de troisième ligne, sans augmentation des admissions en soins intensifs néonataux.

https://doi.org/10.2471/BLT.11.093369 1923 downloads

15.

Molecular cloning and characterization of a novel mannosebinding lectin cDNA from Zantedeschia aethiopica
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Zhonghai, Chen

; Yongzhen, Pang

; Liu, Xiaojun

; Wang, Xinglong

; Deng, Zhongxiang

; Sun, Xiaofen

; Tang, Kexuan

Biocell

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aug 2005, Volume 29 N. 2 Pages 187 - 193

Abstract: En | Text: En | PDF: En

Using RNA extracted from Zantedeschia aethiopica young leaves and primers designed according to the conservative regions of Araceae lectins, the full-length cDNA of Z. aethiopica agglutinin (zaa) was cloned by rapid amplification of cDNA ends (RACE). The full-length cDNA of zaa was 871 bp and contained a 417 bp open reading frame (ORF) encoding a lectin precursor of 138 amino acids. Through comparative analysis of zaa gene and its deduced amino acid sequence with those of other Araceae species, it was found that zaa encoded a precursor lectin with signal peptide. Secondary and three-dimensional structure analyses showed that ZAA had many common characters of mannose-binding lectin superfamily and ZAAwas a mannose-binding lectin with three mannose-binding sites. Southern blot analysis of the genomic DNA revealed that zaa belonged to a multi-copy gene family.

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