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Confirmatory factor analysis of VISA-P scale and measurement invariance across sexes in athletes with patellar tendinopathy

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Journal of Sport and Health Science 2017年第3期6卷 365-371页

作者： sergio hernandez-sanchez Ferran Abat María D.Hidalgo Antonio I.Cuesta-Vargas Victor Segarra Jose M.sanchez-Ibanez Antonia Gomez-Conesa Department of Pathology and Surgery Physiotherapy AreaMiguel Hernandez UniversityValencia 03550Spain Sports Orthopaedic Surgeon ReSport ClinicBarcelona 08017Spain Department of Basic Psychology and Methodology University of MurciaMurcia 30100Spain Department of Physiotherapy Faculty of Health SciencesUniversity of MalagaMalaga 29009Spain

Background:The Victorian Institute of Sport Assessment–Patella(VISA-P) scale is the most condition-specific patient-reported outcome measure used to assess symptom severity in athletes with patellar tendinopathy.Previous exploratory factor analyses have been conducted to evaluate the scale's dimensionality,with inconsistent results,and the factor structure of the scale remains unclear.The aims of the present study were to determine the factorial structure of the VISA-P scale using confirmatory factor analysis(CFA) and test measurement invariance across sexes.Methods:The study included a convenience sample of 249 Spanish athletes with patellar tendinopathy.CFA was performed to assess factorial validity.Hypothesized 1-and 2-factor models were tested.Measurement invariance across sexes was evaluated via multi-group CFA with several fit indices using EQS 6.1 software.Results:The internal consistency coefficient was 0.74.Several CFA models were examined and the 1-factor model in which errors for Items 7 and8 were correlated showed acceptable fit in terms of comparative fit index(CFI) and goodness-of-fit index(GFI) statistics(CFI = 0.93;GFI = 0.94;standardized root mean square residual = 0.06;root mean square error of approximation = 0.10;90% confidence interval:0.08–0.13).This model was invariant across sexes.Conclusion:The 1-factor model of the Spanish version of the VISA-P scale(VISA-P-Sp) in which errors for Items 7 and 8 were correlated demonstrated relative fit in CFA.Scores obtained via VISA-P-Sp can be compared between men and women without sexes bias.Further studies should examine the VISA-P scale and other single-score patient-reported outcome measures concurrently.

关键词：跳线开关膝测量不变性报导病人的结果措施结构的有效性

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SARS-CoV-2:Air pollution highly correlated to the increase in mortality.The case of Guadalajara,Jalisco,Mexico

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Infectious Disease Modelling 2023年第2期8卷 445-457页

作者： Elizabeth Torres-Anguiano Itzel sanchez-Lopez Angeles Garduno-Robles Jorge David Rivas-Carrillo Edgar Alfonso Rivera-Leon sergio sanchez-Enríquez Luis Fernando Ornelas-hernandez Fernando Zazueta Leon-Quintero Eduardo Narciso Salazar Leon-Quintero Guillermo Enrique Juarez-Lopez Fernando Antonio sanchez-Zubieta Mariana Ochoa-Bru Abraham Zepeda-Moreno Onkogenetik/Mexicana de Investigacion y Biotectogía S.A.de C.V GuadalajaraJaliscoMexico Unidad de Biología Molecular Investigacion y DiagnosticoHospital San JavierGuadalajaraJaliscoMexico Departamento de Fisiología Centro Universitario de Ciencias de la SaludUniversidad de GuadalajaraGuadalajaraJaliscoMexico Departamento de Biología Molecular y Genomica Centro Universitario de Ciencias de la SaludUniversidad de GuadalajaraGuadalajaraJaliscoMexico Departamento de Clínicas Centro Universitario de los AltosUniversidad de GuadalajaraTepatitlan de MorelosJaliscoMexico Departamento de Clínicas Medicas Centro Universitario de Ciencias de la SaludUniversidad de GuadalajaraGuadalajaraJaliscoMexico Servicio de Hemato-Oncología Pediatrica Hospital Civil de Guadalajara“Dr.Juan I.Menchaca”GuadalajaraJaliscoMexico Hospital Civil de Guadalajara“Fray Antonio Alcalde” GuadalajaraJaliscoMexico

Objectives:To determine whether air pollution or changes in SARS-CoV-2 lineages lead to an increase in mortality.Methods:Descriptive statistics were used to calculate rates of infection(2020-2021).RT ePCR was used to compare viral loads from October 2020 to February 2021.Nextgeneration sequencing(NGS)(n=92)was used to examine and phylogenetically map SARS-CoV-2 lineages.A correlative“air pollution/temperature”index(I)was developed using regression analysis.PM_(2.5),PM_(10),O_(3),NO_(2),SO_(2),and CO concentrations were analyzed and compared to the mortality.Results:The mortality rate during the last year was~32%.Relative SARS-CoV-2 viral loads increased in December 2020 and January 2021.NGS revealed that approximately 80%of SARS-CoV-2 linages were B.1.243(33.7%),B1.1.222(11.2%),B.1.1(9%),B.1(7%),B.1.1.159(7%),and B.1.2(7%).Two periods were analyzed,the prehigh-and high-mortality periods and no significant lineage differences or new lineages were found.Positive correlations of air pollution/temperature index values with mortality were found for IPM_(2.5) and IPM_(10).INO_(2).ISO_(2),and ICO but not for O_(3).Using ICO,we developed a model to predict mortality with an estimated variation of~±5 deaths per day.

关键词： Air pollution COVID-19 Guadalajara Mexico SARS-CoV-2 SARS-CoV-2 lineages

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Patient Frailty Can Increase the Risk of Acute Kidney Injury after Cardiac Surgery: Pilot Study

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World Journal of Cardiovascular Surgery 2022年第10期12卷 245-255页

作者： sergio Soto-Hopkins José Antonio sanchez-Lopez Erick Trujillo-Magallón Ron Leder Ana Gabriela Gallardo-hernandez Unidad Médica de Alta Especialidad en Cardiología Centro Médico Nacional Siglo XXI Mexico City M&#233xico IEEE Engineering in Medicine and Biology Mexico City M&#233xico Unidad de Investigación Médica en Enfermedades Metabólicas Centro M&#233dico Nacional Siglo XXI Mexico City M&#233xico

Background: Acute kidney injury (AKI) is a severe common postoperative complication of cardiac surgery (CS). It increases the risk of mortality by up to 80%. Therefore, it is essential to have preoperative risk evaluation tools. Frailty is a marker of deterioration of physiologic systems and may be associated with AKI. Purpose: The study aimed to determine the utility of frailty as a predictor of AKI after CS. Method: We enrolled 91 patients undergoing CS with cardiopulmonary bypass to determine if they had frailty before surgery and were associated with postoperative AKI. The diagnosis of postoperative AKI was based on the serum creatinine criteria of the Acute Kidney Injury Network classification up to 7 days following CS. Results: The incidence of postoperative AKI was 62% in the frail group and 21% in the non-frail group. Frailty was associated with a higher risk of AKI (relative risk [RR] = 3.00, 95% CI 1.56 - 5.77, p = 0.00). In regression models, there were associations between frailty and postoperative AKI. Conclusion: This study demonstrated that frailty could be a predictor for post-CS AKI. Therefore, frailty assessment should become an essential part of the preoperative evaluation to help the anesthesiologist to estimate the surgical risk and develop preoperative and transoperative strategies to preserve the renal function and improve the cardiac surgery outcome.

关键词： Cardiac Surgery Heart-Lung Machine Acute Kidney Injury Frailty Cardiopulmonary Bypass

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Separation and recovery of critical metal ions using ionic liquids

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Advances in Manufacturing 2016年第1期4卷 33-46页

作者： Terence Makanyire sergio sanchez-Segado Animesh Jha Institute for Materials Research University of LeedsLeeds LS2 9JT UK

Separation and purification of critical metal ions such as rare-earth elements （REEs）, scandium and niobium from their minerals is difficult and often deter- mines if extraction is economically and environmentally feasible. Solvent extraction is a commonly used metal-ion separation process, usually favored because of its sim- plicity, speed and wide scope, which is why it is often employed for separating trace metals from their minerals. However, the types of solvents widely used for the recovery of metal ions have adverse environmental impact. Alternatives to solvent extraction have been explored and advances in separation technologies have shown commer- cial establishment of liquid membranes as an alternative to conventional solvent extraction for the recovery of metals and other valuable materials. Liquid membrane transport incorporates solvent extraction and membrane separation in one continuously operating system. Both methods con- ventionally use solvents that are harmful to the environ- ment, however, the introduction of ionic liquids （ILs） over the last decade is set to minimize the environmental impact of both solvent extraction and liquid membrane separation processes. ILs are a family of organic molten salts with low or negligible vapour pressure which may be formed below 100 ~C. Such liquids are also highly thermally stable and less toxic. Their ionic structure makes them thermody- namically favorable solvents for the extraction of metallic ions. The main aim of this article is to review the current achievements in the separation of REE, scandium, niobium and vanadium from their minerals, using ILs in eithersolvent extraction or liquid membrane processes. The mechanism of separation using ILs is discussed and the engineering constraints to their application are identified.

关键词： Critical metals Ionic liquids （ILs） -Niobium Tantalum Rare-earth elements （REEs）Vanadium Scandium

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Sub-10nm nanogap fabrication on suspended glassy carbon nanofibers

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Microsystems & Nanoengineering 2020年第1期6卷 1306-1315页

作者： Arnoldo Salazar Samira Hosseini Margarita sanchez-Dominguez Marc J.Madou Alejandro Montesinos-Castellanos sergio O.Martinez-Chapa School of Engineering and Sciences Tecnologico de MonterreyEugenio Garza Sada 2501MonterreyNL 64849Mexico Centro de Investigacion en Materiales Avanzados S.C.(CIMAV)Unidad Monterrey Parque de Investigacion e Innovacion TecnologicaApodacaNL 66628Mexico Department of Mechanical and Aerospace Engineering University of California IrvineEngineering Gateway 4200IrvineCA 92697USA

Glassy carbon nanofibers(GCNFs)are considered promising candidates for the fabrication of nanosensors for biosensing applications.Importantly,in part due to their great stability,carbon electrodes with sub-10 nm nanogaps represent an attractive platform for probing the electrical characteristics of molecules.The fabrication of sub-10 nm nanogap electrodes in these GCNFs,which is achieved by electrically stimulating the fibers until they break,was previously found to require fibers shorter than 2µm;however,this process is generally hampered by the limitations inherent to photolithographic methods.In this work,to obtain nanogaps on the order of 10 nm without the need for sub-2µm GCNFs,we employed a fabrication strategy in which the fibers were gradually thinned down by continuously monitoring the changes in the electrical resistance of the fiber and adjusting the applied voltage accordingly.To further reduce the nanogap size,we studied the mechanism behind the thinning and eventual breakdown of the suspended GCNFs by controlling the environmental conditions and pressure during the experiment.Following this approach,which includes performing the experiments in a high-vacuum chamber after a series of carbon dioxide(CO 2)purging cycles,nanogaps on the order of 10nm were produced in suspended GCNFs 52µm in length,much longer than the~2µm GCNFs needed to produce such small gaps without the procedure employed in this work.Furthermore,the electrodes showed no apparent change in their shape or nanogap width after being stored at room temperature for approximately 6 months.

关键词： fibers carbon electrical

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Quantifying water stress effect on daily light use efficiency in Mediterranean ecosystems using satellite data

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International Journal of Digital Earth 2017年第6期10卷 623-638页

作者： sergio sanchez-Ruiz Alvaro Moreno Maria Piles Fabio Maselli Arnaud Carrara Steven Running Maria Amparo Gilabert Departament de Fisica de la Terra i Termodinamica Facultat de FisicaUniversitat de ValenciaBurjassotSpain Numerical Terradynamic Simulation Group University of MontanaMissoulaMTUSA Barcelona Expert Center Institut de Ciencies del MarICM-CSICBarcelonaSpain IBIMET-CNR Sesto FiorentinoItaly Fundacion CEAM PaternaSpain

The capacity of six water stress factors(ε′(i))to track daily light use efficiency(ε)of water-limited ecosystems was evaluated.These factors are computed with remote sensing operational products and a limited amount of ground data:ε′1 uses ground precipitation and air temperature,and satellite incoming global solar radiation;ε′(2) uses ground air temperature,and satellite actual evapotranspiration and incoming global solar radiation;ε′_(3) uses satellite actual and potential evapotranspiration;ε′_(4) uses satellite soil moisture;ε′_(5) uses satellite-derived photochemical reflectance index;and ε′_(6) uses ground vapor pressure deficit.These factors were implemented in a production efficiency model based on Monteith’s approach in order to assess their performance for modeling gross primary production(GPP).Estimated GPP was compared to reference GPP from eddy covariance(EC)measurements(GPP EC)in three sites placed in the Iberian Peninsula(two open shrublands and one savanna).ε′_(i) were correlated to ε,which was calculated by dividing GPP EC by ground measured photosynthetically active radiation(PAR)and satellite-derived fraction of absorbed PAR.Best results were achieved by ε′(1),ε′(2),ε′(3) and ε′(4) explaining around 40% and 50% of ε variance in open shurblands and savanna,respectively.In terms of GPP,R^(2)≈0.70 were obtained in these cases.

关键词： Light use efficiency water stress GPP Monteith Mediterranean ecosystems

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Peroral endoscopic myotomy vs laparoscopic myotomy and partial fundoplication for esophageal achalasia: A single-center randomized controlled trial

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World Journal of Gastroenterology 2022年第33期28卷 4875-4889页

作者： Eduardo Turiani Hourneaux de Moura Jose Jukemura Igor Braga Ribeiro Galileu Ferreira Ayala Farias Aureo Augusto de Almeida Delgado Lara Meireles Azeredo Coutinho Diogo Turiani Hourneaux de Moura Rubens Antonio Aissar Sallum Ary Nasi sergio A sanchez-Luna Paulo Sakai Eduardo Guimaraes Hourneaux de Moura Departamento de Gastroenterologia Faculdade de MedicinaUniversidade de Sao PauloServico de Endoscopia Gastrointestinal do Hospital das Clinicas HCFMUSPSao Paulo 05403-010Brazil Division of Esophageal Surgery Hospital das ClinicasUniversity of Sao Paulo School of MedicineSao Paulo 05403-010Brazil Departamento de Gastroenterologia Faculdade de MedicinaUniversidade de Sao PauloHospital das ClinicasUniversity of Sao Paulo School of MedicineSao Paulo 05403-010Brazil Department of Internal Medicine The University of Alabama at Birmingham Heersink School of MedicineBasil I.Hirschowitz Endoscopic Center of ExcellenceDivision of Gastroenterology and HepatologyBirminghamAL 35233United States

BACKGROUND Achalasia is a rare benign esophageal motor disorder characterized by incomplete relaxation of the lower esophageal sphincter(LES). The treatment of achalasia is not curative, but rather is aimed at reducing LES pressure. In patients who have failed noninvasive therapy, surgery should be considered. Myotomy with partial fundoplication has been considered the first-line treatment for non-advanced achalasia. Recently, peroral endoscopic myotomy(POEM), a technique that employs the principles of submucosal endoscopy to perform the equivalent of a surgical myotomy,has emerged as a promising minimally invasive technique for the management of this condition.AIM To compare POEM and laparoscopic myotomy and partial fundoplication(LM-PF) regarding their efficacy and outcomes for the treatment of achalasia.METHODS Forty treatment-naive adult patients who had been diagnosed with achalasia based on clinical and manometric criteria(dysphagia score ≥ II and Eckardt score > 3) were randomized to undergo either LM-PF or POEM. The outcome measures were anesthesia time, procedure time, symptom improvement, reflux esophagitis(as determined with the Gastroesophageal Reflux Disease Questionnaire), barium column height at 1 and 5 min(on a barium esophagogram), pressure at the LES, the occurrence of adverse events(AEs), length of stay(LOS), and quality of life(QoL).RESULTS There were no statistically significant differences between the LM-PF and POEM groups regarding symptom improvement at 1, 6, and 12 mo of follow-up(P = 0.192, P = 0.242, and P = 0.242, respectively). However, the rates of reflux esophagitis at 1, 6, and 12 mo of follow-up were significantly higher in the POEM group(P = 0.014, P < 0.001, and P = 0.002, respectively). There were also no statistical differences regarding the manometry values, the occurrence of AEs, or LOS. Anesthesia time and procedure time were significantly shorter in the POEM group than in the LM-PF group(185.00 ± 56.89 and 95.70 ± 30.47 min vs 296.75 ± 56.13 and 218.75 ± 50.88 min,respecti

关键词： Esophageal achalasia Gastroesophageal reflux Deglutition disorders Heller myotomy Fundoplication Randomized controlled trial

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Hydatid cyst of the colon:A systematic review of the literature

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World Journal of Clinical Cases 2019年第13期7卷 1634-1642页

作者： Miguel Angel Latatu-Córdoba sergio Ruiz-Blanco Matilde sanchez Carmen Santiago-Boyero Paula Soto-García Wenzhong Sun José M Ramia Faculty of Medicine Universidad of Alcalá Alcalá de Henares 28801 Spain Servicio de Cirugía Generaly del Aparato Digestivo Hospital Universitario de Guadalajara Guadalajara 19002 Spain

BACKGROUND Primary hydatid disease in the colon is an extremely rare finding. We performed a systematic review of cases of hydatidosis of the colon published to date. AIM To systematic review the published papers about hydatidosis of the colon. METHODS Following PRISMA guidelines, we performed an unlimited search for articles on CH in the MEDLINE (PubMed), EMBASE, Cochrane, Latindex and Scielo databases, published in English, Spanish, French, German or Italian between January 1, 1960 and December 15, 2018. The search items were:(Colon) AND [(hydatidosis) OR (hydatid disease) OR (echinococcosis)]. RESULTS Nine case reports were found [five men, four women, median age 64.55 years (range: 21-81)]. The most frequent clinical manifestation was abdominal pain (8/9)(88.9%). In almost all cases several image studies were carried out, but abdominal computed tomography was the most used (66.7%). Five resections of the colon (62.5%) and three sutures of the fistula between cyst and colon (37.5%) were performed. Four patients did not present post-operative complications, but one died. Postoperative period was recorded for a mean period of 35 months. No recurrences were recorded. CONCLUSION The most frequent symptom was abdominal pain (evidence level 4). Computed tomography was the most frequently used diagnostic imaging technique (evidence level 4). Colectomy was the most appropriate treatment (evidence level 5). All the diagnostic and therapeutic options for hydatid cysts located in colon have a low level of evidence.

关键词： Echinococcosis Hydatidosis Hydatid cyst Colon Surgery Review

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Identification of human papillomavirus in esophageal squamous papillomas

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World Journal of Gastroenterology 2008年第46期14卷 7107-7111页

作者： Olga L Bohn Leticia Navarro Jesus Saldivar sergio sanchez-Sosa Department of Pathology UPAEP University Hospital

AIM:To investigate the presence of human papillomavirus (HPV) in esophageal squamous papilloma (ESP) and determine p16, p53 and Ki67 expression in a Mexican cohort. METHODS: Nineteen cases diagnosed as ESP, corresponding to 18 patients were reviewed; nineteen cases of normal esophageal mucosa were used as negative controls. HPV detection was performed by amplified chromogenic in situ hybridization (ACISH) using a wide spectrum-cocktail probe and PCR. RESULTS: The average age at presentation was 46.3 years (range 28-72 years). Patients included four (22.22%) males and 14 (77.77%) females. The most frequent location was upper third (11 cases), followed by middle third (3 cases) and unknown site (5 cases). Immunohistochemistry (IHC) revealed basal and focal p53 expression in 17 cases (89%); p16 was expressed in eight cases (42.10%) and the Ki67 index ranged from 10% to 30%. HPV was detected in 14 out of 16 cases (87.5%) by ACISH: Twelve showed diffuse nuclear patterns and two showed granular patterns. HPV DNA was identified by PCR in 12 out of 14 cases (85.7%). Low-risk HPV types were detected in the most of the cases. CONCLUSION: This study provides identification of HPV infection in almost 80% of ESP using either ACISH or PCR; overall, all of these lesions show low expression of cell-cycle markers. We suggest ACISH as an alternative diagnostic tool for HPV detection in ESP.

关键词：食管乳头状瘤疣状乳头瘤病食管癌症状免疫组织化学

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Comparison between type-2 and type-1 myocardial infarction：clinical features, treatment strategies and outcomes

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Journal of Geriatric Cardiology 2016年第1期13卷 15-22页

作者： Angel Lopez-Cuenca Miriam Gomez-Molina Pedro J Flores-Blanco Marianela sanchez-Martinez Andrea Garcia-Narbon Ignacio De Las Heras-Gomez Maria J Sainchez-Galian Esther Guerrero-Perez Mariano Valdes sergio Manzano-Femandez Department of Internal Medicine Hospital de la Vega Lorenzo Guirao Cieza Spain Division of Cardiology University Hospital Virgen de la Arrixaca School of Medicine IMIB Murcia Spain Department of Biochemistry University Hospital Virgen de la Arrixaca School of Medicine IMIB Murcia Spain Department of lnternal Medicine University of Murcia Murcia Spain

ObjectiveTo 与尖锐心肌的梗塞(AMI ).MethodsWe 包括了的 type-2 对 type-1 在病人在发生，临床的特征，当前的治疗策略和结果估计差别有 type-1 或 type-2 AMI 的诊断的 824 个连续病人。在索引住院期间，临床的特征和治疗策略详细被... 详细信息

ObjectiveTo 与尖锐心肌的梗塞(AMI ).MethodsWe 包括了的 type-2 对 type-1 在病人在发生，临床的特征，当前的治疗策略和结果估计差别有 type-1 或 type-2 AMI 的诊断的 824 个连续病人。在索引住院期间，临床的特征和治疗策略详细被收集。在 1 年的后续，死亡，击，流血的非致命的心肌的梗塞和专业是 recorded.ResultsType-1 AMI 在 707 是在场的(86%) 盒子当(14%) 117 作为 type-2 被分类时。有 type-2 AMI 的病人更经常是象糖尿病那样的女、有的更高的合作病态，以前的非圣片断举起急性冠的症候群，损害肾的功能，贫血症， atrial 纤维性颤动和恶意。然而，保存了左室的喷射部分，正常冠的动脉是经常看见的更多，侵略治疗是不太普通的，并且反血小板药， statins 和 beta-blockers 是在有 type-2 AMI 的病人规定的更少。在 1 年的后续， type-2 AMI 与更高粗略的死亡风险被联系(HR：1.75， 95% CI：1.14-2.68；P = 0.001 ) ，但是这个协会没在 multivariable 调整以后仍然保持重要(P = 0.785 ) 。而且，我们没发现 type-2 AMI 与另外的临床的 outcomes.ConclusionsIn 被联系这张真实人口与 type-1 相比， type-2 AMI 是主要女人们并且有更多的合作病态。侵略治疗策略和 cardioprotective 药是在 type-2 使用的更少，当 1 年的临床的结果是类似的时。

关键词：冠的容器后续学习心肌的梗塞

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