Outcome of Expanded Newborn Screening Among 194 000 Neonates at Northeast México.

Objectives. To describe the results of a 16-year experience of a state-coverage expanded newborn screening program (NBSP) in Northeast México. Methods. Between 2002 and 2017, dried blood spots of newborns were screened for congenital hypothyroidism (CH), congenital adrenal hyperplasia (CAH), biotinidase deficiency, galactosemia, cystic fibrosis, and glucose-6-phosphate dehydrogenase (G6PD) deficiency via immunofluorescence and amino and fatty acid disorders and organic acidemias using tandem mass spectrometry. Frequency rates were determined. Results. Overall, 192 487 samples were processed; 99.4% had negative results, and 598 were diagnosed. The frequency was 3.01/1000 newborns. G6PD deficiency, CH, amino acidemia, organic acidemia, cystic fibrosis, CAH, fatty acid oxidation disorder, galactosemia, and biotinidase deficiency cases were 1:773, 1:962, 1:4277, 1:4476, 1:11,322, 1:10,693, 1:10,693, 1:38,497, and 1:64,162, respectively. Conclusion. Using different technologies in NBSP increased the number of conditions detected, facilitating infant morbidity and mortality prevention. The frequency of disorders depends on the population's genetic background and diagnostic capacity.

Immunogenicity of RV1 and RV5 vaccines administered in standard and interchangeable mixed schedules: a randomized, double-blind, non-inferiority clinical trial in Mexican infants.

Introduction: Rotavirus-associated diarrheal diseases significantly burden healthcare systems, particularly affecting infants under five years. Both Rotarix™ (RV1) and RotaTeq™ (RV5) vaccines have been effective but have distinct application schedules and limited interchangeability data. This study aims to provide evidence on the immunogenicity, reactogenicity, and safety of mixed RV1-RV5 schedules compared to their standard counterparts. Methods: This randomized, double-blind study evaluated the non-inferiority in terms of immunogenicity of mixed rotavirus vaccine schedules compared to standard RV1 and RV5 schedules in a cohort of 1,498 healthy infants aged 6 to 10 weeks. Participants were randomly assigned to one of seven groups receiving various combinations of RV1, and RV5. Standard RV1 and RV5 schedules served as controls of immunogenicity, reactogenicity, and safety analysis. IgA antibody levels were measured from blood samples collected before the first dose and one month after the third dose. Non-inferiority was concluded if the reduction in seroresponse rate in the mixed schemes, compared to the standard highest responding scheme, did not exceed the non-inferiority margin of -0.10. Reactogenicity traits and adverse events were monitored for 30 days after each vaccination and analyzed on the entire cohort. Results: Out of the initial cohort, 1,365 infants completed the study. Immunogenicity analysis included 1,014 infants, considering IgA antibody titers ≥20 U/mL as seropositive. Mixed vaccine schedules demonstrated non-inferiority to standard schedules, with no significant differences in immunogenic response. Safety profiles were comparable across all groups, with no increased incidence of serious adverse events or intussusception. Conclusion: The study confirms that mixed rotavirus vaccine schedules are non-inferior to standard RV1 and RV5 regimens in terms of immunogenicity and safety. This finding supports the flexibility of rotavirus vaccination strategies, particularly in contexts of vaccine shortage or logistic constraints. These results contribute to the global effort to optimize rotavirus vaccination programs for broader and more effective pediatric coverage.Clinical trial registration: ClinicalTrials.gov, NCT02193061.

Microsurgical and endoscopic-assisted supraorbital keyhole approach for intra-suprasellar cysticercosis.

Background: Treatment for intra/suprasellar cysticercosis can be challenging and may result in visual disturbances if not managed properly. Despite its limited knowledge, an effective surgical option exists to treat this condition. This article presents three cases of sellar cysticercosis, comprising one female and two male patients, managed with microsurgical supraorbital keyhole approach (mSKA) and endoscopic-assisted supraorbital keyhole approach (eaSKA). Case Description: The first patient is a 35-year-old man with no prior medical history who suffered from memory deficits and visual disturbances due to a sellar cyst pushing the orbitofrontal gyrus treated with mSKA. The second case involved a 52-year-old man who experienced visual deficits caused by a rostral sellar cyst with posterior displacement of the pituitary gland treated with eaSKA. The third case was a 46-year-old woman who experienced decreased visual acuity and memory loss due to multifocal neurocysticercosis (NCC) with sellarsuprasellar cyst extension treated with mSKA. All case diagnoses were confirmed by neuropathology department. Conclusion: The authors confidently suggest that the SKA is an effective surgical option and could be considered for removing sellar cystic lesions with suprasellar extension. With endoscopic assistance, it improves adequate neurovascular structure visualization.

Sensibilidad y especificidad de la oximetría de pulso para detectarcardiopatías congénitas en recién nacidos / Sensitivity and specificity of pulse oximetry to detect congenital heart disease in newborns

Resumen Objetivo: Determinar la sensibilidad y especificidad de la oximetría de pulso, para detectar cardiopatías congénitas en recién nacidos sanos en alojamiento conjunto. Material y métodos: El estudio es de tipo multicéntrico, prospectivo y transversal, evaluando pacientes del Hospital Regional de Alta Especialidad "Bicentenario 2010" y el Hospital General "Dr. Norberto Treviño Zapata", en ciudad Victoria Tamaulipas, en un periodo que comprendió desde marzo del 2015 a marzo de 2017. Se determinó la oximetría de pulso a recién nacidos sanos antes del egreso hospitalario. Resultados: Se estudiaron 511 recién nacidos. La sensibilidad detectada fue del 88.89 % y una especificidad del 99.80%. Conclusión: Las cardiopatías congénitas en recién nacidos sanos en alojamiento conjunto, se pueden determinar mediante la oximetría de pulso pre y post-ductal.

Abstract Objective: To determine the sensitivity and specificity of pulse oximetry to detect congenital heart disease in healthy newborns in rooming-in. Material and methods: The study is multicenter, prospective and cross-sectional, evaluating patients from the Regional Hospital of High Specialty "Bicentenario 2010" and the General Hospital "Dr. Norberto Treviño Zapata", in the city of Victoria Tamaulipas, in a period from march 2015 to March 2017. Pulse oximetry was determined in healthy newborns before hospital discharge. Results: 511 newborns were studied. The sensitivity detected was 88.89% and a specificity of 99.80%. Conclusion: Congenital heart disease in healthy newborns in rooming-in can be determined by pre- and post-ductal pulse oximetry.

Prevalencia de infección de herida quirúrgica en pacientes con profilaxis antimicrobiana en cesárea programada / Prevalence of surgical wound infection in patients with antimicrobial prophylaxis in planned cesarean section

Resumen: Objetivo: Determinar la prevalencia de infecciones en la herida quirúrgica en cesáreas programadas del HRAEV. Materiales y método: Estudio retrospectivo, descriptivo, observacional tipo corte transversal para determinar la prevalencia de IHQ en pacientes llevadas a cesárea programada con profilaxis antibiótica en HRAEV. Resultados: Se evaluaron 185 expedientes de pacientes sometidas a cesárea programada, con edad entre 28 a 37 años (48.1%) con un peso promedio 81 kg (DE=10.1) con un índice de masa corporal (IMC) promedio de 30 (DE=4.24) es decir un IMC entre 25.76 a 34.24. De ellas, 4 pacientes (2.16%) presentaron infección de herida quirúrgica durante cesárea programada, las cuales recibieron ceftriaxona como PA mayor a 120 minutos previo a la incisión de la piel, estos pacientes se clasifican como ASA II y tenían un IMC superior a 30 kg/m2 y sin comorbilidades registradas. El tiempo de profilaxis antibiótica más frecuente en las pacientes llevadas a cesárea programada fue >120 minutos (34.08%) y se administró ceftriaxona en el 84.86% de la población que en su mayoría es ASA II (97.83%). El 100% de las heridas fueron superficiales. Conclusiones: En el presente estudio se encontró que la prevalencia de IHQ en cesáreas programadas en HRAEV fue de 2.16%, cifra que se encuentra por debajo de la prevalencia a nivel mundial, dado a que las pacientes seleccionadas no contaban con algunos de los factores de riesgo añadidos que aumentaran el riesgo de IHQ en comparación con otros estudios.

Abstract: Objective: To determine the prevalence of surgical wound infections in scheduled HRAEV cesarean sections. Materials and method: Retrospective, descriptive, observational cross-sectional study to determine the prevalence of IHC in patients undergoing scheduled cesarean section with antibiotic prophylaxis in HRAEV. Results: 185 records of patients undergoing scheduled cesarean section were evaluated, aged between 28 to 37 years (48.1%) with an average weight of 81 kg (SD = 10.1) with an average body mass index (BMI) of 30 (SD = 4.24) that is, a BMI between 25.76 and 34.24. Of these, 4 patients (2.16%) presented surgical wound infection during scheduled cesarean section, who received ceftriaxone as PA greater than 120 minutes prior to skin incision, these patients are classified as ASA II and had a BMI greater than 30 kg/m2 and without recorded comorbidities. The most frequent antibiotic prophylaxis time in patients undergoing scheduled cesarean section was >120 minutes (34.08%) and ceftriaxone was administered in 84.86% of the population, which is mostly ASA II (97.83%). 100% of the wounds were superficial. Conclusions: In the present study, it was found that the prevalence of IHC in cesarean sections scheduled in HRAEV was 2.16%, a figure that is below the worldwide prevalence, given that the selected patients did not have some of the risk factors. added risk that increased the risk of SSI compared to other studies.

Metabolic Reprogramming in SARS-CoV-2 Infection Impacts the Outcome of COVID-19 Patients.

Severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2) infection triggers inflammatory clinical stages that affect the outcome of patients with coronavirus disease 2019 (COVID-19). Disease severity may be associated with a metabolic imbalance related to amino acids, lipids, and energy-generating pathways. The aim of this study was to characterize the profile of amino acids and acylcarnitines in COVID-19 patients. A multicenter, cross-sectional study was carried out. A total of 453 individuals were classified by disease severity. Levels of 11 amino acids, 31 acylcarnitines, and succinylacetone in serum samples were analyzed by electrospray ionization-triple quadrupole tandem mass spectrometry. Different clusters were observed in partial least squares discriminant analysis, with phenylalanine, alanine, citrulline, proline, and succinylacetone providing the major contribution to the variability in each cluster (variable importance in the projection >1.5). In logistic models adjusted by age, sex, type 2 diabetes mellitus, hypertension, and nutritional status, phenylalanine was associated with critical outcomes (odds ratio=5.3 (95% CI 3.16-9.2) in the severe vs. critical model, with an area under the curve of 0.84 (95% CI 0.77-0.90). In conclusion the metabolic imbalance in COVID-19 patients might affect disease progression. This work shows an association of phenylalanine with critical outcomes in COVID-19 patients, highlighting phenylalanine as a potential metabolic biomarker of disease severity.

ACE and ACE2 Gene Variants Are Associated With Severe Outcomes of COVID-19 in Men.

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is responsible for the current coronavirus disease 2019 (COVID-19) pandemic, affecting more than 219 countries and causing the death of more than 5 million people worldwide. The genetic background represents a factor that predisposes the way the host responds to SARS-CoV-2 infection. In this sense, genetic variants of ACE and ACE2 could explain the observed interindividual variability to COVID-19 outcomes. In order to improve the understanding of how genetic variants of ACE and ACE2 are involved in the severity of COVID-19, we included a total of 481 individuals who showed clinical manifestations of COVID-19 and were diagnosed by reverse transcription PCR (RT-PCR). Genomic DNA was extracted from peripheral blood and saliva samples. ACE insertion/deletion polymorphism was evaluated by the high-resolution melting method; ACE single-nucleotide polymorphism (SNP) (rs4344) and ACE2 SNPs (rs2285666 and rs2074192) were genotyped using TaqMan probes. We assessed the association of ACE and ACE2 polymorphisms with disease severity using logistic regression analysis adjusted by age, sex, hypertension, type 2 diabetes, and obesity. The severity of the illness in our study population was divided as 31% mild, 26% severe, and 43% critical illness; additionally, 18% of individuals died, of whom 54% were male. Our results showed in the codominant model a contribution of ACE2 gene rs2285666 T/T genotype to critical outcome [odds ratio (OR) = 1.83; 95%CI = 1.01-3.29; p = 0.04] and to require oxygen supplementation (OR = 1.76; 95%CI = 1.01-3.04; p = 0.04), in addition to a strong association of the T allele of this variant to develop critical illness in male individuals (OR = 1.81; 95%CI = 1.10-2.98; p = 0.02). We suggest that the T allele of rs2285666 represents a risk factor for severe and critical outcomes of COVID-19, especially for men, regardless of age, hypertension, obesity, and type 2 diabetes.

Design method of optical detection systems based on transimpedance amplifiers.

Designing detection systems based on transimpedance amplifiers is a complex task because noise, frequency response, and stability are coupled constraints. This work presents a straightforward design method of detection systems based on transimpedance amplifiers. We take into account the objectives, scope of the design, and requirements and specifications, including the input signal levels. According to the small-signal model, the noise and stability are analyzed in detail. We present a systematic procedure to search for the acceptable values of the feedback network components based on these analyses. Then, we define a merit function to compare the performance of the acceptable combinations of feedback network components. For every acceptable combination, the function gives a quantitative measure of the degree of compliance for each design parameter: signal-to-noise ratio, highest operating frequency, and phase margin. As an example, we apply the method to optimize the design of an optical detection system using a PIN photodiode and a low-noise operational amplifier.

Dissolving microneedles containing aminolevulinic acid improves protoporphyrin IX distribution.

One important limitation of topical photodynamic therapy (PDT) is the limited tissue penetration of precursors. Microneedles (MNs) are minimally invasive devices used to promote intradermal drug delivery. Dissolving MNs contain drug-associated to polymer blends, dissolving after insertion into skin, allowing drug release. This study comprises development and characterization of a pyramidal model of dissolving MNs (500 µm) prepared with 5% wt/wt aminolevulinic acid and 20% wt/wt Gantrez AN-139 in aqueous blend. Protoporphyrin IX formation and distribution were evaluated in tumor mice model by using fluorescence widefield imaging, spectroscopy, and confocal microscopy. MNs demonstrated excellent mechanical resistance penetrating about 250 µm with minor size alteration in vitro, and fluorescence intensity was 5-times higher at 0.5 mm on average compared to cream in vivo (being 10 ± 5 a.u. for MNs and 2.4 ± 0.8 a.u. for cream). Dissolving MNs have overcome topical cream application, being extremely promising especially for thicker skin lesions treatment using PDT.

Gene Copy Number Quantification of SHOX, VAMP7, and SRY for the Detection of Sex Chromosome Aneuploidies in Neonates.

Aims: To explore the feasibility of detecting sex chromosome aneuploidies (SCAs) by means of gene copy number quantification of short stature homeobox (SHOX), vesicle-associated membrane protein 7 (VAMP7), and SRY in newborns. Materials and Methods: Gene doses of SHOX, VAMP7, and SRY were determined by quantitative polymerase chain reaction (qPCR) using DNA obtained from dried blood samples from newborns. Relative quantification values were obtained. An aneuploidy profile was established according to cutoff values. Samples with ≥2 gene doses (out of range) were reanalyzed, and those with aneuploidy profiles were confirmed by karyotyping. Sensitivity, specificity, and positive and negative predictive values were obtained. Results: A total of 10,033 samples were collected (4945 females and 5088 males). Of 244 (2.43%) samples with ≥2 gene doses that were retested, 20 cases were confirmed. The overall incidence of SCAs was 1 in 500 live newborns. There were six cases of Turner syndrome (1/824), 3 cases of XXX (1/1648), 7 cases of Klinefelter syndrome (1/726), and 4 cases of of XYY (1/1272). The sensitivity was 0.952 (95.42%); the specificity was 0.975 (97.56%); the positive predictive value was 0.909 (90.91%) and the negative predictive value was 0.987 (98.77%). Conclusions: Gene copy number analyses of the VAMP7, SHOX, and SRY genes by qPCR from blood samples spotted onto filter paper is a highly reliable method for the early detection of male and female SCAs.

Procalcitonina de cordón umbilical como predictor de sepsis temprana en recién nacidos prematuros "en Tamaulipas, México 2016". Resultado preliminar / Umbilical cord blood serum procalcitonin as predictor of early onset sepsis in premature infants in Tamaulipas México, 2016. Preliminary results

Resumen Introducción: La sepsis causa alta mortalidad en el prematuro, afecta hasta 19 de 1000 en los menores de 1000 g y su manifestación puede ser inespecífica. La toma de decisión del uso de antibióticos es difícil, siendo necesario un predictor rápido, barato y efectivo para sepsis temprana. Objetivo: Determinar la utilidad de la procalcitonina de cordón umbilical como predictor de sepsis temprana en el recién nacido prematuro. Materiales y métodos: Estudio descriptivo, longitudinal, de junio a noviembre del 2016. Se incluyeron 22 recién nacidos < 37 semanas de gestación, con o sin factores de riesgo para infección. Los neonatos con malformaciones o sospecha de enfermedad metabólica fueron excluidos. Procalcitonina y hemocultivo de cordón fueron tomados al nacimiento, posteriormente fueron valorados desde el nacimiento hasta las 72 horas de vida para datos de sepsis. Resultados: Doce desarrollaron sepsis temprana y diez no. La media de procalcitonina de cordón en el grupo de sepsis fue de 0,68 ng/ml versus de 0,13 ng/ml en el grupo sin sepsis, p=0.025. En el análisis bajo el área de la curva ROC para la procalcitonina fue de 0,75. El valor de corte de procalcitonina de cordón fue de 0,14 ng/ml como predictor de sepsis temprana (sensibilidad 75%, especificidad 70%, valor predictivo positivo 75%, valor predictivo negativo 70%). Conclusiones: La procalcitonina de cordón umbilical al nacimiento puede ser un parámetro útil como marcador de sepsis neonatal temprana en el prematuro, sin embargo, estos resultados deben ser validados con un tamaño de muestra más grande. MÉD.UIS. 2018;31(1):23-30.

Abstract Introduction: Sepsis is a cause of high mortality in the premature, it affects up to 19 of 1000 in children under 1000 g and its manifestation may be nonspecific. Decision-making on the use of antibiotics is not always easy, so it is worth having an fast, cheap and effective predictor of early onset sepsis. Objective: To determine the use of serum procalcitonin umbilical cord as a predictor of early onset sepsis in preterm infants. Materials and methods: Longitudinal descriptive study from june to november 2016 was made. 22 preterm infants (<37 weeks of gestation) were included, with or without risk factors for infection. Neonates with malformations or suspicion of metabolic disease were excluded. A blood sample was taken from the umbilical artery for procalcitonin and blood culture at birth, subsequently they were assessed from birth to 72 hours of life for sepsis data. Results: Twelve developed early onset sepsis and ten did not. The mean procalcitonin of umbilical cord in the sepsis group was 0.68 ng/ml versus 0.13 ng/ml in the group without sepsis, p=0.025. In the analysis under the ROC curve area for procalcitonin was 0.75. The cut value of umbilical cord procalciton was 0.14 ng/ml as a predictor of early sepsis (sensitivity 75%, specificity 70%, positive predictive value 75%, negative predictive value 70%). Conclusions: Procalcitonin of umbilical cord at birth may be a useful parameter as a marker of early onset sepsis in the premature, however these results must be validated with a larger sample size. MÉD.UIS. 2018;31(1):23-30.

Beneficios que percibe el adulto mayor al integrarse a un grupo de ayuda dirigido por personal de enfermería / Benefits perceived by elderly members from a support groups directed by nursing

Resumen:

Introducción: los grupos de ayuda mutua integrados por adultos mayores son una herramienta educativa eficazmente dirigidos por profesionales de enfermería.

Objetivo: conocer la percepción del adulto mayor respecto a los beneficios de integrarse a grupos de autocuidado para mejorar su calidad de vida.

Metodología: se realizó un estudio de corte cuantitativo y cualitativo en el que se evaluó el nivel de independencia y depresión en adultos mayores que se integraron a un grupo de ayuda mutua. Resultados: al finalizar la participación en el grupo de ayuda mutua, 69.2 % de los adultos mayores presentaba dependencia leve, 23.1 % independencia y 7.7 % dependiente total; globalmente 92.3 % logró ser o mantenerse autosuficiente y mostró satisfacción por los conocimientos nuevos. Ningún adulto mayor presentó depresión de riesgo al terminar la estrategia. No se encontró relación entre el sexo y el nivel de independencia [%2 = 1.733, gl = 2, 0.420 > a, a = 0.05), entre el sexo y el nivel de depresión (X2 = 1.733, gl = 1, 0.188 > a, a = 0.05), ni entre el nivel de depresión y el de independencia (X2 = 0.482, gl = 2, 0.786 > a, a = 0.05). Los beneficios más referidos fueron la mejoría de la autoimagen y de la autopercepción.

Conclusiones: se logró la adhesión a las recomendaciones formuladas en el grupo de ayuda mutua porque los adultos mayores percibieron beneficios. En el futuro se requerirá que más profesionales de enfermería participen en la organización y funcionalidad de este tipo de estrategias.

Abstract:

Introduction: Mutual aid groups composed of older adults are an educational tool effectively managed by nurses.

Objective: To know the perception of older adults about the benefits of joining a group of self-care practices to improve their quality of life.

Methods: A quantitative and qualitative study was performed, the level of independence and depression in older adults who joined a support group was evaluated.

Results: At the end of their participation in the support group, 69.2 % of older adults had mild dependence, 23.1 % independence and 7.7 % total dependence; 92.3 % managed to be or remain self-sufficient and expressed satisfaction with the new knowledge. No older adult presented greater depression risk by the end of the strategy. No relationship between gender and level of independence was found (x2 = 1.733, df = 2, 0.420 >a,a = 0.05) between sex and level of depression (X2 = 1.733, df = 1, 0.188 > a, to be found = 0.05) or between depression and level of independence (X2 = 0.482, df = 2, 0786 > a, a = 0.05). The more referred benefits were in the areas of self-image and self-perception.

Conclusions: Adherence to recommendations made within the support group was achieved due to benefits perceived by older adults. In the future more nurses involved in the organization and functionality of such strategies will be required.

An efficient protocol for the synthesis of quinoxaline derivatives at room temperature using recyclable alumina-supported heteropolyoxometalates.

We report a suitable quinoxaline synthesis using molybdophosphovanadates supported on commercial alumina cylinders as catalysts. These catalysts were prepared by incipient wetness impregnation. The catalytic test was performed under different reaction conditions in order to know the performance of the synthesized catalysts. The method shows high yields of quinoxaline derivatives under heterogeneous conditions. Quinoxaline formation was obtained using benzyl, o-phenylenediamine, and toluene as reaction solvent at room temperature. The CuH(2)PMo(11)VO(40) supported on alumina showed higher activity in the tested reaction. Finally, various quinoxalines were prepared under mild conditions and with excellent yields.

Dominancia cerebral en la industria maquiladora en Ciudad Juárez, Chihuahua, México / Brain dominance in the industry of Juarez city, México

El objetivo del estudio fue identificar modelos de pensamiento y habilidades en correspondencia al puesto y área laboral, mediante la evaluación del instrumento Herrmann de Dominancia Cerebral HBDI (Herrmann Brain Dominance Instrument, 1989), en una planta industrial de Ciudad Juárez, Chih. Participaron 176 gerentes y personal administrativo mexicanos. Se describen estadísticos de cuatro categorías de dominancia en tres áreas laborales. Se encontraron puntuaciones elevadas en las categorías lógico-controlador para todas las áreas laborales respecto a las habilidades interpersonales-holísticas, lo cual corresponde al manejo de dominancia cerebral del hemisferio cortical superior. Con una varianza total explicada del 76 por ciento en factorial confirmatorio y fiabilidad aceptable de la escala (alfa=.657), el instrumento fue identificado como versátil, económico y de fácil evaluación, al servir adecuadamente para selección, promoción, desarrollo organizacional y comprensión del clima laboral.

The objective of the study was to identify models of thought and abilities in correspondence to the position and labor area by means of the evaluation of the instrument Herrmann de Cerebral Dominance HBDI (Herrmann Brain Dominance Instrument, 1989), in an industrial plant of City Juarez, Chih. To 176 Mexican managers and administrative personnel participated. They describe themselves statistical of four categories of dominance in three labor areas. Were scores elevated in the categories logical-controller for all the labor areas with respect to the interpersonal-holistic abilities, which corresponds to the handling of cerebral dominance of the superior cortical hemisphere. With an explained total variance of confirming factorial 76 percent in and acceptable reliability of the scale (alpha=.657), the instrument was identified like versatile, economic and of easy evaluation when being used suitably for selection, promotion, organizational development and understanding of the labor climate.

El consumo de alcohol disminuye el tiempo de lactancia exclusiva / Alcohol consumption decreases the time of exclusive breastfeeding

Objetivos: el objetivo de este estudio es determinar qué factores se asocian con la lactancia exclusiva al mes de vida.Método: se realizó un estudio de tipo cohorte con adquisición prospectiva de los datos. En las primeras 48 horas de vida durante la internación se recabaron factores conocidos, creencias y actitudes que se asocian con lactancia materna, Se realizó el seguimiento telefónico al mes de vida. Resultados: se incluyeron 273 madres con sus hijos, alojados en habitación conjunta. La pérdida fue de 11 (4%). De las 191 madres que se contactaron al mes y tenían una para o más amamantaron anteriormente a sus hijos más de 6 meses 149 (77,2%). Recibieron información sobre los beneficios de la lactancia durante el embarazo 116 madres (42,6%). Refieren dolor al amamantar 140 (51,4%) madres de las cuales 74 presentan grietas. Se prendieron al pecho en la primera hora de vida 148 (54,4%) recién nacidos. Recibieron biberón 78 (28,6%) por indicación neonatal o por dificultad materna. Siguieron con pecho exclusivo al mes 149 (56,8%). El consumo de alcohol redujo en forma significativa la posibilidad de dar pecho exclusivo al mes. P 0,01. En las pacientes con un hijo previo se asoció en forma significativa a lactancia exclusiva al mes el haber dado pecho más de 6 meses con anterioridad (p=0,001). Mantienen su validez estadística luego del análisis multivariado antecedente de lactancia más de 6 meses OR 2,91 (IC95% 1,54-5,50), consumir alcohol OR 0,55 (IC95% 0,32-0,92). Conclusiones: se asoció en forma independiente como predictor negativo para lactancia exclusiva el consumo de alcohol. Haber dado pecho por más de 6 meses anteriormente y ser multípara aumenta la posibilidad de lactar en forma exclusiva al mes.

Objectives: the aim of this study was to determine factors associated with exclusive breastfeeding in the first month of life. Method: we conducted a cohort study with prospective data acquisition. In the first 48 hours of life during hospitalization were collected known factors, beliefs and attitudes that are associated with breastfeeding. Telephone follow-up was performed at month of life. Results: we included 273 mothers and children housed in a room together. The loss was 11 (4%). In 191 mothers who were contacted in a month and had one or more child before, 149 (77.2%) had breastfeed their children 6 months or more. 116 mothers (42.6%) received information on the benefits of breastfeeding during pregnancy. 140 mothers (51.4%) reported pain during breastfeeding, 74 of them with cracks. 148 infants (54.4%) latched in the first hour of life. 78 (28.6%) received bottle by neonatal indication or maternal difficult. 149 (56.8%) continued with exclusively breastfed in a month. Alcohol consumption significantly reduced the possibility of exclusive breastfeeding in a month (p=0.01). In patients with a previous child was significantly associated with exclusive breastfeeding in a month have given the chest more than six months previously (p=0.001). Remain valid after multivariate analysis statistical history of breastfeeding more than 6 months OR 2.91 (95% CI 1.54 to 5.50), alcohol OR 0.55 (95% CI 0.32 to 0.92). Conclusions: alcohol consumption was independently associated as a negative predictor for exclusive breastfeeding. Having given breast more than six months before and be multiparous increases the possibility of exclusively breastfeeding in a month.

Relaciones con múltiples parejas en mujeres universitarias: estudio comparativo en dos instituciones del noroeste de México / Relationship with multiple partners in university women: a comparative study in two institutions from the northwest of Mexico

Objetivo: Identificar qué variables influyen para que las mujeres se relacionen sexualmente con múltiples parejas. Métodos: Estudio transversal que contó con la participación de 542 mujeres pertenecientes a dos instituciones de educación superior del noroeste de México, a quienes se administró un instrumento que mide variables psicológicas que subyacen a diferentes comportamientos sexuales de riesgo. Para el tratamiento de los datos se utilizaron la prueba T, la U de Mann-Whitney y un análisis de regresión lineal múltiple. Resultados: El análisis de regresión arrojó los siguientes resultados: para las mujeres de Hermosillo, Sonora, los predictores fueron las variables edad biológica, edad de inicio de relaciones y un estado biológico -"me encontraba excitada"-, con esas variables explicando 53.4% de la varianza total. Para las mujeres de Ciudad Juárez, Chihuahua, los predictores fueron las variables edad biológica y dos estados biológicos "me encontraba excitada" y "me encontraba bajo la influencia del alcohol"-, explicando 20.8% de la varianza total. Conclusiones: Los resultados del presente estudio subrayan la necesidad de diseñar programas para prevenir nuevas infecciones por VIH, con base en el entrenamiento en competencias conductuales.

Objective: To identify what variables influence having multiple sexual partners. Methods: A cross-sectional study was carried out with 542 women of two higher education institutions from the northwest of Mexico, who answered a questionnaire measuring psychological variables underlying high-risk sexual behaviors. The data were analyzed with T-tests, Mann-Whitney U tests, and with a multiple linear regression. Results: A multiple linear regression analysis showed the following results: for women from Hermosillo, Sonora, the predictors of high-risk sexual behaviors were biological age, age of sexual debut, and one biological state "I was physically excited", with those variables explaining 53.4% of the total variance; for women from Ciudad Juarez, Chihuahua, the predictors were biological age, and two types of biological states "I was physically excited" and "I was under the influence of alcohol", explaining 20.8% of the total variance. Conclusions: The results underscore the need to design prevention programs directed to avoid HIV infection based on behavioral competencies training.

Comparación del Efecto de la adición de malato vs monensina sobre parámetros bioquímicos en terneros en crecimiento / Comparison between malate vs monensin adition on biochemicals parameters in growing steers

El objetivo del presente trabajo fue evaluar “ in vivo ” las repercusiones que tiene la adición de malato sódico sobre parámetros del medio interno, comparándolos con los resultados obtenidos al aplicar monensina sódica. Los parámetros sanguíneos estudiados fueron: glucosa, colesterol, triglicéridos, ácidos grasos libres, y las enzimas aspartato amino transferasa (ASAT), amilasa y gamma glutamil transpeptidasa (GGT). El estudio fue realizado con 13 animales, 8 de ellos recibieron malato sódico y 5 animales monensina sódica, extrayendo 6 muestras a cada animal, una toma basal (toma 1), y a los 3 (toma 2), 7 (toma 3), 21 (toma 4), 46 (toma 5) y 57 días (toma 6). Los resultados obtenidos muestran muy pocas diferencias entre ambos grupos y evoluciones parecidas, con variaciones entre grupos en el día 3 (ácidos grasos libres), día 7 (GGT), en el día 21 (amilasa) y en el día 46 (amilasa y GGT). En cuanto a las evoluciones de los parámetros a lo largo del experimento, colesterol, triglicéridos, amilasa y ASAT son los cuatro parámetros que presentan cambios estadísticos, con evoluciones similares en ambos grupos.

Effects of sodium malate addition on selected blood parameters, compared with the monensin addition were evaluated in this study. Serum glucose, triglycerides, cholesterols, free fatty acids (FFA), and the enzymes aspartate amino transferase (ASAT), amylase and gamma glutamyl transpeptidase (GGT) were studied. Thirteen steers, distributed in two different groups were used, one group (n=8) received sodium malate, and another group (n=5) received monensin and considered for us as a control group. Six samplings were obtained for each animal, at day 0 (before addition), and at days 3; 7; 21; 46 and 57 (after addition), respectively. Results obtained showed a similar evolution in both groups with small differences between them, at day 3 (FFA), at day 7 (GGT), at day 21 (amylase) and at day 46 (GGT and amylase). In relation with the evolution, we have seen similar statistical changes in both groups for cholesterol, triglycerides, amylase and ASAT assays.