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Prevalence of visual impairment and refractive errors in an urban area of Mexico

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International Journal of Ophthalmology(English edition) 2019年第10期12卷 1612-1617页

作者： isabel Signes-Soler David P Pinero Milagro Ines Murillo silvia Tablada University of Valencia 46100 BurjassotValenciaSpain Vision Without Border 03710 CalpAlicanteSpain Department of Optics Pharmacology and AnatomyUniversity of AlicanteAlicante 03690Spain

AIM: To determine the distribution of refractive errors in a school-age population in Quintana Roo(Mexico) in the framework of an international cooperation campaign for the prevention of blindness. METHODS: A sample of 2647 school-age children(ranging from 5 to 14 years old) with a mean age of 9.1±1.9 years old were tested by trained volunteers for distance visual acuity(VA) and refractive errors. The first screening examination included uncorrected distance visual acuity(UDVA) and VA with a +2.00 D lens. Inclusion criteria for a second complete cycloplegic eye examination performed by an optometrist were UDVA <20/25(0.10 logMAR or 0.8 decimal) and/or VA with +2.00 D ≥20/***: A total of 633(23.9%) children underwent the second complete eye examination. Mean logMAR UDVA was 0.035±0.094(range 1.00 to 0.00 logMAR) for the right eyes and 0.036±0.160(range 1.00 to 0.00 logMAR) for the left eyes. Bilateral amblyopia was found in 17 children(2.7% of refracted eyes;0.64% of the total). The main reason for visual impairment(VI) in the sample analyzed was found to be refractive errors. In 12 children(1.9% of refracted eyes;0.45% of the total) the VI was bilateral and 9(1.4% of refracted eyes;0.34% of the total) achieved a corrected distance visual acuity of 20/25 or better in both eyes. Mean magnitude of sphere and refractive cylinder was +0.20±0.96 D and-0.43±0.85 D in right eyes, and +0.24±1.08 and-0.43±0.83 D in left eyes. The proportion of myopic eyes [standard equivalent(SE) ≤-0.50 D] was 4.6% of the whole sample(5290 eyes). The mean magnitude of myopia was-0.84±3.44 D for the right eyes and-0.82±5.21 D for the left eyes. The proportion of hyperopic patients(SE≥+2.00 D) was 2.4%(15/633), which corresponded to 0.60% of the whole sample(32/5290 eyes). No statistically significant correlation of age to manifest sphere or cylinder was ***: VI due to uncorrected refractive errors can be easily corrected with glasses but it is still a burden to be treated.

关键词： myopia hyperopia refractive error blindness visual impairment

Oxytocin in pig seminal plasma is positively related with in vivo fertility of inseminated sows

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Journal of Animal Science and Biotechnology 2022年第2期13卷 430-440页

作者： Lorena Padilla Marina López-Arjona silvia Martinez-Subiela Heriberto Rodriguez-Martinez Jordi Roca isabel Barranco Department of Medicine and Animal Surgery Faculty of Veterinary MedicineUniversity of MurciaE-30100 MurciaSpain Department of Biomedical&Clinical Sciences(BKV) BKH/Obstetrics&GynaecologyFaculty of Medicine and Health SciencesLinköping UniversitySE-58185 LinköpingSweden Department of Veterinary Medical Sciences University of BolognaIT-40064 Ozzano dell’EmiliaBolognaItaly

Background:Identification of relevant in vivo biomarkers for fertility remains a challenge for the livestock *** of the small peptide hormone oxytocin(OXT),involved in male reproductive function and present in the seminal plasma(SP)of several species could be a robust *** study characterized concentrations of SPOXT in ejaculates from boars used in artificial insemination(AI)programs aiming to evaluate its relationship with sperm quality variables and in vivo fertility of their liquid-stored *** OXT concentrations(ng/mL)were measured in 169 ejaculates from 61 boars of the Duroc,Pietrain,Landrace and Large White breeds using a direct competitive immunoassay test based on AlphaLISA®***(ejaculate volume,sperm concentration,total sperm count)and sperm parameters(motility,viability,intracellular generation of reactive oxygen species,plasma membrane fluidity)were assessed at 0 h and 72 h in AI-semen samples stored at 17℃.In vivo fertility included only 18 Large White and Landrace boars whose AI-semen was used to inseminated>100 sows and evaluated both farrowing rate and litter size of 3,167 ***:The results showed that SP-OXT differed between boars and between ejaculates within boar(P<0.05)but not between breeds(Duroc,Pietrain,Landrace and Large White).Ejaculates with higher SP-OXT concentration/mL(hierarchically grouped;P<0.001)had larger volume and came from younger boars(P<0.05).Ejaculates of boars showing positive farrowing rate deviation exhibited higher(P<0.05)SP-OXT concentration/mL than those with negative farrowing rate ***:The SP concentrations of OXT are boar,ejaculate and age dependent,and positively related with ejaculate volume and farrowing rates of liquid-stored semen AI-doses.

关键词： Artificial insemination Ejaculate Fertility Oxytocin Pig Semen quality Seminal plasma

Decreased concentrating capacity in children with febrile urinary tract infection and normal 99mTc-dimercaptosuccinic acid scan:does medullonephritis exist?

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World Journal of Pediatrics 2014年第2期10卷 133-137页

作者： Víctor García-Nieto silvia González-Cerrato María isabel Luis-Yanes Margarita Monge-Zamorano Beatriz Reyes-Millán Pediatric Nephrology Section "Nuestra Senra de la Candelaria"University HospitalSanta Cruz de TenerifeCanary IslandsSpain

Background:Although 99mTc-dimercaptosuccinic acid(DMSA)scan is considered the gold standard for the diagnosis of acute pyelonephritis(AP),sometimes it produces false results in children with clinical features of *** are no studies on the comparison of the sensitivity of DMSA and concentrating capacity ***:Eighty-fi ve infants with AP of less than one year old were studied to evaluate whether they had real AP or *** were compared between infants with an abnormal(group A,n=64)and those with a normal DMSA scan(group B,n=21)respectively.A DDAVP test was performed for each ***:All the infants in both groups presented a high level of C-reactive protein and fever(≥38oC).There were no differences in clinical and analytical variables except C-reactive protein level in the two *** groups exhibited a low urinary osmolality(87.5%in the group A vs.85.7%in the group B).The patients with normal DMSA and decreased concentrating capacity have some renal parenchymal damage and not only a lower urinary *** the infants with an abnormal DMSA scan,33.9%showed renal scars after 6-12 *** infant with a normal DMSA scan showed *** biochemical variables in both groups of infants were not related to vesicoureteral refl ***:Infants with AP,normal DMSA scan and low concentrating capacity may be characterized by a localized infection in the medulla(medullonephritis)or by a false negative DMSA scan.

关键词： concentrating capacity infants pyelonephritis urinary tract infection

Helicobacter pylori and oral pathology:Relationship with the gastric infection

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World Journal of Gastroenterology 2014年第29期20卷 9922-9935页

作者： isabel Adler Andrea Muio silvia Aguas Laura Harada Mariana Diaz Adriana Lence Mario Labbrozzi Juan Manuel Muio Boris Elsner Alejandra Avagnina Valeria Denninghoff Oral Diseases Curriculum School of DentistryUniversity of Buenos AiresC1053ABJ Buenos AiresArgentina Department of Pathology Center for Medical Education and Clinical Research "Norberto Quirno" (CEMIC)1425 Buenos AiresArgentina National Scientific and Technical Research Council (CONICET) Career Member

Helicobacter pylori(***)has been found in the oral cavity and stomach,and its infection is one of the most frequent *** reviewed the literature and conducted a Topic Highlight,which identified studies reporting an association between ***-infection in the oral cavity and ***-positive stomach *** work was designed to determine whether *** is the etiologic agent in periodontal disease,recurrent aphthous stomatitis(RAS),squamous cell carcinoma,burning and *** selection focused on the highest quality studies and *** selected 48 articles reporting on the association between saliva and plaque and *** order to assess periodontal disease data,we included 12 clinical trials and 1 *** evaluated 13 published articles that addressed the potential association with RAS,and 6 with squamous cell *** publications focused on our questions on burning and *** is a close relation between *** infection in the oral cavity and the *** mouth is the first extra-gastric *** the role of *** in the etiology of squamous cell carcinoma,no evidence is still available.

关键词： Helicobacter pylori Oral pathology Gastric infection Burning and halitosis Recurrent aphthous stomatitis

Selection of Relevant Variables to the Enzyme Production on Red Grape Pomace by Solid-State Fermentation

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Journal of Life Sciences 2012年第6期6卷 608-614页

作者： Martha Dina vallejo Maria L. Martin Pablo Monetta silvia C. Gouiric Institute of Bioteehnology Engineering Faculty National University of San Juan San Juan 5400 Argentina Agricultural Experimental Station San Juan National Institute for Agricultural Technology San Juan 5427 Argentina

With the aim of to valorise red grape pomace and to reduce its environmental impact, the production of enzymatic preparations appear as an interesting choice. Statistical experimental Plackett-Burman designs were applied for the selection of relevant medium components and culture conditions for cellulase, xylanase, polygalacturonase and tannase production by Aspergillus awamori, in solid-state fermentation on red grape pomace. Ten variables were tested： initial moisture content （IMC）, particle size （PS）, temperature, initial pH, time of cultivation, mixing （Mx）, and additions of： fructose, tannic acid, sodium phosphate, and ammonium sulphate （ASA）. Results indicate that the production of each enzyme was affected in a distinct way by the different variables. Also, for each of the enzyme activities considered, IMC must be carefully controlled, and optimized above 65%; PS and Mx, must not be taken into account and ASA must be discarded. The other variables studied, must be selected according to the enzyme activity that will be favored.

关键词： Solid-state fermentation enzyme production Aspergillus awamori red grape pomace

Optic Nerve Metastasis from Breast Carcinoma after Treatment with Taxanes

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Case Reports in Clinical Medicine 2014年第6期3卷 336-339页

作者： Mónica Asencio-Duran José-Luis vallejo-Garcia isabel Rodriguez-Rodriguez Margarita Sánchez-Orgaz álvaro Arbizu-Duralde Ophthalmology Department Hospital La Paz Madrid Spain Radiation Oncology Department Hospital La Paz Madrid Spain

Introduction: The incidence of ocular metastasis from Breast Carcinoma is only between 5% - 30%, mainly located in choroid, but the location in optic nerve is even more infrequent. We present a rare case that combined both locations sequentially in the same eye. Methods: Case report. Results: A 58-year-old woman with advanced breast cancer was referred with a choroidal metastasis in her right eye which responded well to systemic Taxol and Avastin. Afterwards, she developed an optic nerve metastasis in the same eye when she was under the treatment, so it was changed to Docetaxel. Unfortunately the patient didn’t respond to this treatment and died. Conclusions: Choroidal metastasis secondary to breast cancer generally responds well to radiotherapy. Even so, in cases that a great deterioration of visual acuity is expected after radiation, chemotherapy like taxanes is an alternative to preserve vision with complete tumor regression. Nevertheless, the presentation of a second metastasis in optic nerve can be indicative of inadequate treatment of metastatic disease or complication of the treatment, or both.

关键词： Choroidal Metastasis Optic Nerve Metastasis Breast Cancer Hormone Therapy Taxanes

Female gender in the setting of liver transplantation

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World Journal of Transplantation 2014年第4期4卷 229-242页

作者： Kryssia isabel Rodríguez-Castro Eleonora De Martin Martina Gambato silvia Lazzaro Erica Villa Patrizia Burra Multivisceral Transplant Unit Deparment of Surgery Oncology and Gastroenterology Padua University Hospital 35128 Padua Italy Department of Gastroenterology Azienda Ospedaliero-Universitaria and University of Modena and Reggio Emilia 41124 Modena Italy

The evolution of liver diseases to end-stage liver disease or to acute hepatic failure, the evaluation process for liver transplantation, the organ allocation decisionmaking, as well as the post-transplant outcomes are different between female and male genders. Women's access to liver transplantation is hampered by the use of model for end-stage liver disease(MELD) score, in which creatinine values exert a systematic bias against women due to their lower values even in the presence of variable degrees of renal dysfunction. Furthermore, even when correcting MELD score for gender-appropriate creatinine determination, a quantifiable uneven access to transplant prevails, demonstrating that other factors are also involved. While some of the differences can be explained from the epidemiological point of view, hormonal status plays an important role. Moreover, the pre-menopausal and post-menopausal stages imply profound differences in a woman's physiology, including not only the passage from the fertile age to the non-fertile stage, but also the loss of estrogens and their potentially protective role in delaying liver fibrosis progression, amongst others. With menopause, the tendency to gain weight may contribute to the development of or worsening of pre-existing metabolic syndrome. As an increasing number of patients are transplanted for non-alcoholic steatohepatitis, and as the average age at transplant increases, clinicians must be prepared for the management of this particular condition, especially in post-menopausal women, who are at particular risk of developing metabolic complications after menopause.

关键词： Liver transplantation Female gender Estrogens Model for end-stage liver disease score Creatinine Gender donor-recipient match

加拉加斯圣拉斐尔-犹尼都升级改造,城市整合项目

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世界建筑导报 2010年第1期25卷 22-27页

作者： silvia Soonets isabel Cecilia Pocaterra Maria Ines Pocaterra and Victor Gastier-Proyectos Arqui 5 CA (Caracas Venezuela)

开工日期:2005年8月项目简述:委内瑞拉加拉加斯一个大型贫民窟的城市改造,包括社会因素。整修圣拉斐尔-犹尼都的计划不仅提升了当地的自豪感和创意性,而且还用一个道德上和环境上敏感的方式来解决社会经济困难。

关键词：加拉加斯委内瑞拉圣拉斐尔

Factors That Motivate Undergraduate Students： An Analysis at a University in Mexico

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Journal of Modern Accounting and Auditing 2016年第1期12卷 52-59页

作者： Selene Viridiana Perez Ramirez Paula Ponce Lazaro silvia Cartujano Escobar Crisoforo Alvarez Violante Roque Lopez Tarango Enrique Pineda Figueroa Ma. isabel Morales Rangel Autonomous University of Morelos State Morelos Mexico Mexican Distance Education University Mexico

The objective of this research was to analyze （or characterize） what motivational factors are involved in the continuity of the academic development of students in the Graduate School of Jojutla. The study is quantitative, descriptive, and transversal. The population is composed of 346 students who entered college in 2014. A sample of 52 students out of this population was selected, from the majors of Business Management, Accounting, Law, Environmental Sciences, Psychology, and Computer Science. The data collection instrument was developed by Esquivel and Arjona （2003）, which measured the dimensions of security, affiliation or affection, self-fulfillment, achievement, power, recognition, and knowledge. The results showed that 72.7% of new students place a very high value on the knowledge dimension： learning new things, improve study skills, do research, better overall job training, and interest in learning. However, in other dimensions, such as affiliation or affection, the percentage given by students is 9. 1%. While the study consists of a small sample, the results provide important information on motivation as a factor that must be considered and evaluated throughout the academic record of the student in order to prevent dropouts and increase terminal efficiency.

关键词： motivation students upper level