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1. Sex and stress modulate pupal defense response in tobacco hornworm.

Author

Singh, Sukhman, Watts, Sakshi, Kaur, Ishveen, Rodriguez, Isabella, Ayala, Jessica, Rodriguez, Dariela, Martin, Elian, and Kariyat, Rupesh

Subjects
PROTECTIVE coloration (Biology), PUPAE, ELECTRIC toothbrushes, TOBACCO, ANGULAR momentum (Mechanics), MANDUCA
Abstract

In insects, larval and adult defenses against predators have been well studied. However, pupal (also known as resting stage) defenses have been overlooked and not examined thoroughly. Although some pupa possess antipredator strategies such as hairs, spines, cryptic coloration, and exudation of chemicals, few studies have tested these responses and the factors affecting them. Here, we investigated the behavioral responses in tobacco hornworm Manduca sexta that pupates in soil by introducing an external stimulus using vibrations from an electric toothbrush to mimic predation. We observed that M. sexta made violent wriggling (twitching), followed by pulsating movements in response to the vibrational stimulus. Detailed examination showed that these twitches and pulsating events occurred more frequently and for longer periods of time in male pupa and were dependent on the magnitude of the stress (high and low frequency). However, when we estimated the angular force exerted by pupa using radian and angular momentum of twitches, it was found to be independent of pupal sex. A follow-up experiment on possible cascading effects of stress exposure on eclosion success revealed that low- and high-frequency stress exposure didn't cause any of the common defects in eclosed adults. Our study clearly demonstrates that the so-called defenseless pupal stage uses a wide range of measurable defense behaviors that can actively defend against predators and should be examined further-linking observed behavior with underlying mechanisms. [ABSTRACT FROM AUTHOR]

Published
2023
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3. Additional file 1 of Composition of Anopheles species and bionomic characteristics over the peak malaria transmission season in Bandarban, Bangladesh

Author

Al-Amin, Hasan Mohammad, Rodriguez, Isabella, Phru, Ching Swe, Khan, Wasif A., Haque, Rashidul, Nahlen, Bernard L., Burton, Timothy A., Alam, Mohammad Shafiul, and Lobo, Neil F.

Abstract

Additional file 1: Figure S1. A. Map of Bangladesh with the malaria endemic regions labeled in yellow. Bandarban District, with the highest malaria is colored orange with the study site outlined in blue. B. The study sites (1) Noa Para, (2) Rubber Bagan, (3) Prue Mong U Headman Para, and (4) Jogesh and Chikka Para. The map was published in an accompanying article ( https://doi.org/10.1186/s12936-022-04375-4 ) which was a part of the same project. Table S1. Trap-based sampling comparisons. Trapping method, species, and location impacted sampling rates.

Published
2023
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6. Composition of Anopheles species and bionomic characteristics over the peak malaria transmission season in Bandarban, Bangladesh.

Author

Al-Amin, Hasan Mohammad, Rodriguez, Isabella, Phru, Ching Swe, Khan, Wasif A., Haque, Rashidul, Nahlen, Bernard L., Burton, Timothy A., Alam, Mohammad Shafiul, and Lobo, Neil F.

Subjects
*ANOPHELES, *DISEASE eradication, *MOSQUITO vectors, *MALARIA, *SPECIES, *MOSQUITOES, *SEASONS
Abstract

Background: Joint efforts by government and non-government organizations have helped to reduce malaria in Bangladesh and set the country on a clear path to eventual malaria elimination. However, achieving that goal would be challenging without a comprehensive understanding of vector bionomics. Methods: Targeted capturing of Anopheles mosquitoes over a rainy season, utilizing specific sampling methods, including human landing catches (HLCs), CDC-light traps (CDC-LTs), and pyrethrum spray catches (PSCs) were aimed to characterize entomological drivers of transmission in four sites of Bandarban, Bangladesh. Results: Molecular characterization of a subset of 4637 mosquitoes has demonstrated the presence of at least 17 species whose capture rates were representative of the rainy season. Species compositions and bionomic traits did not vary between sites with Anopheles maculatus having the highest landing rate by HLCs and Anopheles vagus having the highest capture rate with CDC-LTs. Interestingly, Anopheles species compositions and capture rates varied significantly (p < 0.05) for An. vagus, between HLCs and its often-used proxy—CDC-LTs- suggesting impacts on downstream analysis. CDC-LTs capture rates demonstrated differing compositions with indoor and outdoor biting rates. For example, Anopheles nigerrimus and Anopheles nivipes were more endophagic by HLCs and more exophagic by CDC-LTs. The use of a cow-baited CDC-LT also demonstrated significantly different results when compared to a human-baited CDC-LT considering the high degree of anthropophily in these species. The exception to both zoophily and indoor resting was An. vagus, which demonstrated both anthropophily and high resting rates indoors—pointing to this species being a possible primary vector at this site. Conclusion: A diverse Anopheles fauna in Bandarban has been confirmed through molecular methods, highlighting the potential impact of sampling techniques. Given the complexity of the local ecosystem, a better understanding of mosquito behaviour and ecology is required to achieve the goal of malaria elimination in Bangladesh. [ABSTRACT FROM AUTHOR]

Published
2023
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7. Ingesta de bebidas carbonatadas y factores relacionados en pacientes con esquizofrenia

Author

Wolniczak Rodriguez, Isabella and Arévalo Flores, Jorge Martín

Subjects
Bebidas Gaseosas, purl.org/pe-repo/ocde/ford#2.11.01 [http], purl.org/pe-repo/ocde/ford#3.02.24 [http], Esquizofrenia, Dieta, purl.org/pe-repo/ocde/ford#3.03.04 [http]
Abstract

La esquizofrenia es un trastorno mental que genera gran impacto en la vida de las personas que la padecen y está relacionada con un incremento de comorbilidades médicas. Se han encontrado estudios que relacionan los hábitos de alimentación y esta enfermedad, en estos estudios, se encontró un mayor consumo de comida no saludable. Estos hábitos alimentarios ponen a los pacientes en riesgo de obesidad y otras alteraciones metabólicas relacionadas, independientemente del tratamiento farmacológico que reciben. Durante el año 2020, se realizó una encuesta a médicos psiquiatras en Perú valorando qué tipo de bebidas eran más consumidas por sus pacientes con esquizofrenia y se encontró que las más consumidas eran las carbonatadas. El objetivo del estudio es encontrar si existe mayor frecuencia de consumo de bebidas carbonatadas en pacientes con esquizofrenia frente a sus familiares o cuidadores. Para lograr esto, se plantea realizar un estudio transversal descriptivo observacional, en el cual se elaborará un cuestionario que tomará en cuenta variables demográficas y clínicas, y evaluará la cantidad de consumo de bebidas carbonatadas en el paciente y su familiar o cuidador. En el estudio, se tomarán en cuenta a aquellos pacientes ya diagnosticados de esquizofrenia, mayores de 18 años, que sean pacientes del Hospital Cayetano Heredia y del Instituto Nacional de Salud Mental y acudan a cita presencial entre marzo y setiembre del 2021, y deseen participar del estudio.

Published
2021

12. Asociación entre consumo de frutas y verduras con prevalencia de depresión

Author

Maguiña Quispe, Jorge Luis, Bernabé-Ortiz, Antonio, Wolniczak Rodriguez, Isabella, Maguiña Quispe, Jorge Luis, Bernabé-Ortiz, Antonio, and Wolniczak Rodriguez, Isabella

Abstract

Existe evidencia sugiriendo que una dieta saludable podría reducir el riesgo de presentar depresión. El objetivo de este estudio fue evaluar si existe asociación entre el consumo de frutas y verduras y la presencia de síntomas depresivos en Perú. Materiales y métodos: Análisis secundario de la Encuesta Nacional Demográfica y Salud Familiar (ENDES) 2014. Se incluyó a mayores de 18 años, residentes habituales de las viviendas seleccionadas. La variable resultado fue la presencia de síntomas depresivos evaluada usando el cuestionario PHQ-9 (punto de corte >14). La exposición de interés fue el consumo auto-reportado de frutas y verduras evaluado usando una adaptación del cuestionario STEPs de la Organización Mundial de la Salud (OMS) y dividido en terciles. Se calcularon las razones de prevalencia (RP) e intervalos de confianza al 95% utilizando modelos de regresión de Poisson y considerando el diseño multietápico del estudio. Resultados: Los datos de 25901 participantes fueron analizados, 13972 (53,9%) mujeres, y la media de edad fue de 44,2 (DE: 17,7) años. La prevalencia de consumo de frutas y verduras de acuerdo a la recomendación de la OMS fue de 3,5% (IC95%: 3,3%-3,7%), mientras que la de presencia de síntomas depresivos fue de 3,2% (IC95%: 3,0%-3,4%). En el análisis ajustado y comparado con el tercil alto de consumo de frutas y verduras, se encontró que aquellos en el tercil medio (RP=1,38; IC95%: 1,01–1,87) e inferior (RP=1,81; IC95%: 1,36–2,45) tuvieron mayor probabilidad de presentar síntomas depresivos. Conclusiones: El estudio demuestra una asociación inversa entre el consumo de verduras y frutas y la presencia de síntomas depresivos. Los resultados obtenidos pueden ser útiles para generar estrategias que fomenten una mejor dieta en países como el nuestro., There is evidence suggesting a healthy diet may reduce the risk of depression. The aim of this study was to assess the association between fruits and vegetables consumption and the presence of depressive symptoms in Peru. Materials and methods: Secondary analysis of the Encuesta Nacional Demográfica y Salud Familiar (ENDES) 2014. The study included people aged 18 years and over, habitual residents of selected households. The outcome was presence of depressive symptoms evaluated using the PHQ-9 (cutoff > 14). The exposure of interest was self-reported fruit and vegetables consumption assessed using an adaptation of the questionnaire STEPs from World Health Organization (WHO) and divided into tertiles. Prevalence ratios (PR) and 95% confidence intervals (95%CI) were estimated using Poisson regression models and adjusting for the study’s multistage design. Results: A total of 25901 participants were included in the analysis; of these, 13972 (53.9%) women, mean age of 44.2 (SD 17.7) years. The prevalence of fruits and vegetables consumption according to WHO recommendation was 3.5% (95%CI: 3.3%-3.7%), while depressive symptoms prevalence was 3.2% (95%CI: 3.0%-3.4%). In the multivariable analysis, and compared with the highest tertile of fruits and vegetables consumption, those in the middle tertile (PR=1.38, 95%CI 1.01-1.87) and lower tertile (PR=1.81, 95% CI 1.36-2.45) were more likely to have depressive symptoms. Conclusions: The study shows an inverse association between vegetables and fruits consumption and the presence of depressive symptoms. These results may be useful to generate strategies for promoting better diet in similar contexts., Tesis

Published
2017

13. Mucinous adenocarcinoma of the appendix. Report of a case

Author

Wolniczak Rodriguez, Isabella, Cáceres del Águila, Alonso, and Santillana Callirgos, Juan Alberto

Subjects
Neoplasias del apéndice, Adenocarcinoma mucinoso, Appendiceal neoplasms, Appendectomy, Apendicectomía, Mucinous, Adenocarcinoma
Abstract

El adenocarcinoma mucinoso de apéndice es una neoplasia poco frecuente con una tasa de incidencia de 0,08% de todas las neoplasias. El diagnóstico suele hacerse por biopsia ya que por su presentación clínica puede simular otras patologías de estructuras localizadas en cuadrante abdominal inferior derecho. Actualmente el tratamiento aún es controversial siendo la cirugía la mejor opción. El presente reporte describe un paciente con antecedentes de apendicectomía hace 27 años que actualmente acude con una tumoración dolorosa en fosa ilíaca derecha asociada a un antígeno carcinoembrionario de 138 ng/dl.

Published
2016
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14. Association between Facebook Dependence and Poor Sleep Quality: A Study in a Sample of Undergraduate Students in Peru

Author

Wolniczak Rodriguez, Isabella, Caceres-Del Aguila, José Alonso, Palma-Ardiles, Gabriela, Arroyo, Karen J., Solés-Visscher, Rodrigo, Paredes-Yauri, Stephania, Mego-Aquije, Karina, Bernabe-Ortiz, Antonio, Wolniczak Rodriguez, Isabella, Caceres-Del Aguila, José Alonso, Palma-Ardiles, Gabriela, Arroyo, Karen J., Solés-Visscher, Rodrigo, Paredes-Yauri, Stephania, Mego-Aquije, Karina, and Bernabe-Ortiz, Antonio

Abstract

Objectives: Internet can accelerate information exchange. Social networks are the most accessed especially Facebook. This kind of networks might create dependency with several negative consequences in people’s life. The aim of this study was to assess potential association between Facebook dependence and poor sleep quality. Methodology/Principal Findings: A cross sectional study was performed enrolling undergraduate students of the Universidad Peruana de Ciencias Aplicadas, Lima, Peru. The Internet Addiction Questionnaire, adapted to the Facebook case, and the Pittsburgh Sleep Quality Index, were used. A global score of 6 or greater was defined as the cutoff to determine poor sleep quality. Generalized linear model were used to determine prevalence ratios (PR) and 95% confidence intervals (95%CI). A total of 418 students were analyzed; of them, 322 (77.0%) were women, with a mean age of 20.1 (SD: 2.5) years. Facebook dependence was found in 8.6% (95% CI: 5.9%–11.3%), whereas poor sleep quality was present in 55.0% (95% CI: 50.2%–59.8%). A significant association between Facebook dependence and poor sleep quality mainly explained by daytime dysfunction was found (PR = 1.31; IC95%: 1.04–1.67) after adjusting for age, sex and years in the faculty. Conclusions: There is a relationship between Facebook dependence and poor quality of sleep. More than half of students reported poor sleep quality. Strategies to moderate the use of this social network and to improve sleep quality in this population are needed., Revisión por pares

Published
2014

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