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Copyright of Revista Alergia de Mexico is the property of Coleg. Mexicano de Inmunologia Clinica y Alergia A.C.; Soc. Lat. de Alergia, Asma e Inmunologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Biomédica: Revista del Instituto Nacional de Salud is the property of Instituto Nacional de Salud of Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Introduction. The COVID-19 pandemic has exerted unprecedented pressure on health systems, revealing inequalities on a world scale. One of the concerns over this period has been the possible inequality of access for diagnostic tests related to the economic resources of the population. In this study, we analyze the results of tests for COVID-19 detection in Bogotá and their relationship with income levels. Methods. Ecological research with SIVIGILA reports was carried out between March 6 to July 1, 2020, for positive and negative COVID-19 test records. The statistical description of the quantitative and qualitative variables and bivariate analysis were performed. Additionally, the Gini coefficient was calculated based on the Lorenz Curve. Results. The study included 44,300 records. The tests were conducted mainly on men (51.4%) and from the highest strata 4, 5, and 6 (53.5%). Similarly, the Gini Coefficient showed inequality in access by comparing socioeconomic strata. Conclusions. The analysis show inequality in access to the diagnostic tests for SARS-CoV-2, with the highest strata having more access associated with greater purchasing power. [ABSTRACT FROM AUTHOR]

Objective: to examine the business culture of small and medium-sized companies in the municipality of Tamazula de Gordiano, Mexico. Methodology: the research was carried out with a quantitative approach and the method was quasi-experimental, transectional and exploratory. It was quasi experimental because it was carried out without manipulating variables and was based on the community of SMEs from the municipality of Tamazula de Gordiano; exploratory transectional, because the concept of exploratory and organizational culture began to be understood, which is applied to research, problems that are little studied in said community. Surveys were applied to the managers or owners of 35 small and medium-sized private sector companies (SMEs), using the "business diagnosis" questionnaire as an instrument, developed by the Institute for Development and Innovation in Technology for Small and Mediumsized Enterprises (IDITpyme), from the University of Guadalajara, considering the area of business culture. Results: the business culture of SMEs in Tamazula de Gordiano does not distinguish or separate the capital of the company from family assets; only a minority has an organizational philosophy defined and known by its members. Most managers or owners consider strategic alliances of little or no importance to the achievement of organizational objectives and are reactive in the face of possible external threats. Considering the characteristics described above, it is inferred that the business culture of SMEs, according to the Robbins classification, is weak. The business culture that characterizes SMEs, the object of the study, implies a lower performance, which places them at a disadvantage compared to large companies that have a strong culture and, furthermore, puts them at serious risk of remaining vulnerable in the face of an increasingly complex, changing and competitive local and national economic situation. Conclusions: It is concluded that this weak business culture is similar in SMEs in the different municipalities of Mexico and other Latin American countries, given the cultural similarities that persist and coexist in this geographical area of the world. [ABSTRACT FROM AUTHOR]

Copyright of Agro Productividad is the property of Colegio de Postgraduados and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Primary immunodeficiencies (PID) are characterized by alterations in the components of the immune system. The lymphocyte population count by flow cytometry is an approach to molecular diagnosis and is expressed by immunophenotypes. The objective of the study was to describe the lymphocyte population count and immunophenotyping compatible with PID in patients with suspected PID in a Peruvian national reference hospital. Records of 261 cases meeting the Jeffrey Modell Foundation's PID clinical suspicion criteria were reviewed between April and December of 2016. Of the 261 suspected cases of PID, 54.8% were males. We found 93 patients (35.6%) with PID-compatible immunophenotyping. The common variable immunodeficiency immunophenotype was the most frequent (36.6%), followed by agammaglobulinemias (18.3%). Antibody deficiencies were the most common PID. Other molecular tests are needed for a specific genetic diagnosis. [ABSTRACT FROM AUTHOR]

Copyright of Revista Ciencias de la Salud is the property of Colegio Mayor de Nuestra Senora del Rosario and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Introduction: The diagnosis of infection with Trypanosoma cruzi (T. cruzi) is routinely performed by serological tests while the use of molecular methods is still in process of standardization. Objective: To evaluate the discriminatory capacity and agreement between a serological test and a polymerase chain reaction (PCR) to determine T. cruzi infection. Methodology: PCR and ELISA test-F29 were performed to 95 participants of "Cardiovascular health investigation and collaboration countries of America to assess the markers and outcomes of Chagas disease" (CHICAMOCHA). Discriminatory capacity of ELISA -F29 with respect to PCR results were evaluated by estimating the area of ROC curve. The false positive rate was estimated to 25% and sensitivity to 75%. The agreement was determined using Cohen's kappa. Results: PCR tests were performed at two different times in 95 individuals (mean age: 38; 64% male), with positivity rates between 1.1 to 2.2% for S35-S36 primers and from 18.3% to 34, 7% for primers 121-122, respectively. ELISA-F29 discriminatory capacity regarding PCR was 0.62 (95% CI: 0.53, 0.70). The false positive rate was 56% (95% CI: 42; 70). The optimal cutoff for absorbance ratio of ELISA-F29 was 2.53 (sensitivity 59%, specificity 60%). For the primers 121-122, levels of observed agreement and kappa estimates were 52.6% and 0.10 (95% CI: -0.08, 0.28) for the first measurement, 62.4% and 0.09 (95% CI: -0.09,0.28) for the second measurement, and 57.5% and 0.13 (95% CI: 0.01, 0.26) for the two measurements simultaneously evaluated. Conclusions: The results show poor agreement evidenced by kappa values determined in the study. It is necessary to refine the studies to evaluate the utility of molecular testing in the diagnosis of Chagas disease. [ABSTRACT FROM AUTHOR]

Copyright of Ginecología y Obstetricia de México is the property of Federacion Mexicana de Ginecologia y Obstetricia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cirugía y Cirujanos is the property of Publicidad Permanyer SLU and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Archivos de Neurociencias is the property of Instituto Nacional de Neurologia y Neurocirugia, Departamento de Publicaciones Cientificas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Ciencias de la Salud is the property of Colegio Mayor de Nuestra Senora del Rosario and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ginecología y Obstetricia de México is the property of Federacion Mexicana de Ginecologia y Obstetricia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Biomédica: Revista del Instituto Nacional de Salud is the property of Instituto Nacional de Salud of Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ginecología y Obstetricia de México is the property of Federacion Mexicana de Ginecologia y Obstetricia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

All around the world, lung cancer is the most common cancer among men and women, followed by breast, colon and rectum, stomach, and liver cancer. It affects most frequently people in their 50s and 60s, and tobacco consumption is the risk factor most strongly associated to the development of this type of cancer. It is most common among men; however, the prevalence among women has increased over the last ten years. Imaging tests for diagnosis include positron emission tomography (PET) with computed-tomography fusion, and transesophageal and bronchoscopic ultrasound, as the most relevant. Among the early detection techniques, the low-dose helical tomography stands out. However, it has not been able to prove to be useful as a screening tool. Conventional methods for diagnostic confirmation of lung cancer are bronchoscopy and percutaneous needle aspiration biopsy. The most common histologic type is the adenocarcinoma, being clinical stages III and IV being the most frequently found. At early clinical stages, surgical treatment has proven to be effective, and there is a good 5-year survival rate. In late stages, chemotherapy and radiotherapy are the most useful treatment methods to control the disease and palliate cancer signs and symptoms. Research in genomic analysis may provide a better understanding of cancer genetics, and therefore, new therapeutic strategies in the future. [ABSTRACT FROM AUTHOR]

Copyright of Boletín Médico del Hospital Infantil de México is the property of Publicidad Permanyer SLU and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Solid pseudopapillary tumor of the pancreas is very rare, of low malignant potential and unknown origin. It generally occurs in young women and the prognosis is usually good after complete surgical removal. A female patient of 19 years is reported, with Solid-pseudopapillary tumor of the pancreas, who was treated by distal pancreatectomy with spleen preservation [ABSTRACT FROM AUTHOR]

Biliary atresia is the result of progressive fibrosis and obliteration of intra and extrahepatic bile ducts, this condition is particularly pediatric and occurs mainly between the second and fourth weeks of life and is the leading cause of liver cirrhosis and fatal within the first year of life, and the most common indication for liver transplantation in children. [ABSTRACT FROM AUTHOR]

Copyright of Medicina Interna de Mexico is the property of Colegio de Medicina Interna de Mexico and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Se observaron estructuras quísticas similares a xenomas con organismos ovoides o piriformes en encéfalo y riñón de un conejo de un mes de edad. Se probaron diferentes tinciones, como HE, PAS, azul de toluidina y azul de tricromo. El azul de tricromo proporcionó los mejores resultados en cuanto a especificidad, resolución y confirmación de esporas de microsporidios. Este colorante es fácilmente adaptable a cortes desparafinados por no requerir de equipo adicional; es rápido, económico y podría utilizarse como técnica confirmatoria para otras microsporidiosis. [ABSTRACT FROM AUTHOR]

Copyright of Innovación Tecnológica is the property of Instituto de Informacion Cientifica y Tecnologica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Obesity is becoming more prevalent in children and adolescents around the world, including Mexico. Different reports have shown the failure of parents to recognize the overweight status of their children; this problem could be present also in school teachers and health professionals attending obese children for other health problems. Obesity in children can have adverse physical, metabolic and psychosocial consequences affecting the health status of affected children. It is important to identify the presence and persistence of cardiovascular risk factors, as these groups of disease are leading causes of morbidity and mortality among adults in Mexico. Obese children have been frequently shown to grow into obese adults and have higher than expected morbidity and mortality in adult life, particularly due to cardiovascular diseases. It is important to identify timely the presence of overweight and obesity in children and adolescents in order to install opportune preventive measures to avoid the appearance and progression of cardiovascular risk factors. [ABSTRACT FROM AUTHOR]

Patellar osteochondral lesions are difficult to diagnose, there must be a high index of suspicion in order to treat them timely. We present this case to point the keys of an early diagnosis and to expose Pritsch technique, which consists in suturing the osteochondral fragment to the anterior surface of the patella. It is an easy procedure and available to the orthopedist, we also present the functional result that was satisfactory in this case. [ABSTRACT FROM AUTHOR]

Cholestatic syndromes put together a group of diseases than share clinical characteristic; jaundice with (conjugated bilirrubin) choluria, and acholia of couse with Word papers occurs 1 in 2,500 live borns. In mexico we have about 2 millions a year that means 800 cases with cholestatic liver diseases, almost 75% with biliary atresia and the rest with idiophatic neonatal hepatitis. Bilis retention results in progressive liver damage and end stage liver disease, because of that in every single newborn with persistent jaundice beyond the second week of life, there is a hurry to know the cause as soon as possible, beginning with serum bilirrubin levels. Direct or conjugated bilirrubin same or above 2 mg/dL, make a diagnosis of cholestatic syndrome and is better for the patient be admitted to a third attention level for diagnostic screening and treatment. [ABSTRACT FROM AUTHOR]

Labelling of monoclonal antibodies with radioactive metals for cancer diagnosis and therapy has usually been accomplished by the use of bifunctional chelating agents, which contain both a reactive functionality for covalent attachment to proteins and a strong metal-binding group capable of forming a physiologically stable complex with the radionuclide. The objective of the present work was to modify the humanized monoclonal antibody (h-R3) with the 1,4,7,10-tetraaza-cyclododecane N,N',N'',N'''-tetraacetic acid (DOTA) in aqueous solution, achieve the labelling of the obtained conjugates with 90Y and study some of the variables that influence in the labelling reaction, as well as the stability of the radioimmunoconjugate in presence of other chelating agents. [ABSTRACT FROM AUTHOR]