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https://www.readbyqxmd.com/read/28107689/development-and-validation-of-a-liquid-chromatography-tandem-mass-spectrometry-method-for-the-assay-of-tafamidis-in-rat-plasma-application-to-a-pharmacokinetic-study-in-rats
#1
Hun-Chan Hyun, Jong-Woo Jeong, Hye-Rim Kim, Ji-Hoon Oh, Jong-Hwa Lee, Sungwook Choi, Yeon-Soo Kim, Tae-Sung Koo
Tafamidis is a first-in-class inhibitor of transthyretin amyloid fibril formation. It has been available in Argentina, Japan, and Mexico for the treatment of transthyretin amyloidosis in adult patients with early-stage symptomatic polyneuropathy. In this study, a rapid and sensitive liquid chromatography-tandem mass spectrometry method was developed and validated for the assay of tafamidis in rat plasma. The method was also assessed for its applicability to pharmacokinetic studies in rats. Tafamidis was extracted from rat plasma by the liquid-liquid extraction method using hydrochloric acid and ethyl acetate...
January 10, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28107407/sympatry-predicts-spot-pigmentation-patterns-and-female-association-behavior-in-the-livebearing-fish-poeciliopsis-baenschi
#2
Andrea J Roth-Monzón, Laura E Scott, Ashley A Camargo, Eliza I Clark, Eric E Schott, Jerald B Johnson
In this study, we explored the possibility that differences in pigmentation patterns among populations of the fish Poeciliopsis baenschi were associated with the presence or absence of the closely related species P. turneri. If reproductive character displacement is responsible, spotting patterns in these two species should diverge in sympatry, but not allopatry. We predicted that female P. baenschi from sympatric sites should show a preference for associating with conspecifics vs. heterospecific males, but females from allopatric sites should show no such preferences...
2017: PloS One
https://www.readbyqxmd.com/read/28106260/first-report-of-stegomyia-aegypti-%C3%A2-aedes-aegypti-in-mexico-city-mexico
#3
P Kuri-Morales, F Correa-Morales, C González-Acosta, G Sánchez-Tejeda, E Dávalos-Becerril, M Fernanda Juárez-Franco, A Díaz-Quiñonez, H Huerta-Jimenéz, M D Mejía-Guevara, M Moreno-García, J F González-Roldán
Stegomyia aegypti (= Aedes aegypti) (Diptera: Culicidae) is a species of mosquito that is currently widespread in Mexico. Historically, the mosquito has been distributed across most tropical and subtropical areas lower than 1700 m a.s.l. Currently, populations that are found at higher altitudes in regions with cold and dry climates suggest that these conditions do not limit the colonization and population growth of S. aegypti. During a survey of mosquitoes in September 2015, larvae of S. aegypti mosquitoes were found in two different localities in Mexico City, which is located at about 2250 m a...
January 20, 2017: Medical and Veterinary Entomology
https://www.readbyqxmd.com/read/28105747/virulence-and-genotypes-of-white-spot-syndrome-virus-infecting-pacific-white-shrimp-litopenaeus-vannamei-in-north-western-mexico
#4
J Ramos-Paredes, J M Grijalva-Chon, J C Ibarra-Gámez
White spot syndrome virus (WSSV) has caused substantial global economic impact on aquaculture, and it has been determined that strains can vary in virulence. In this study, the effect of viral load was evaluated by infecting Litopenaeus vannamei with 10-fold serial dilution of tissue infected with strain WSSV Mx-H, and the virulence of four WSSV strains from north-western Mexico was assessed along with their variable number of tandem repeat (VNTR) genotypes in ORF75, ORF94 and ORF125. The LD50 of the Mx-H strain was a dilution dose of 10(-7...
January 20, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28104280/-robot-assisted-frykman-goldberg-procedure-case-report
#5
Gregorio Zubieta-O'Farrill, Moisés Ramírez-Ramírez, Eduardo Villanueva-Sáenz
BACKGROUND: Rectal prolapse is defined as the protrusion of the rectal wall through the anal canal; with a prevalence of less than 0.5%. The most frequent symptoms include pain, incomplete defecation sensation with blood and mucus, fecal incontinence and/or constipation. The surgical approach can be perineal or abdominal with the tendency for minimal invasion. Robot-assisted procedures are a novel option that offer technique advantages over open or laparoscopic approaches. CASE REPORT: 67 year-old female, who presented with rectal prolapse, posterior to an episode of constipation, that required manual reduction, associated with transanal hemorrhage during defecation and occasional fecal incontinence...
January 16, 2017: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/28103184/using-the-centers-for-disease-control-and-prevention-s-stay-independent-checklist-to-engage-a-community-of-american-indians-and-raise-awareness-about-risk-of-falls-2016
#6
Janet Popp, Debra L Waters, Karen Leekity, Donica Ghahate, Jeanette Bobelu, Ross Tsikewa, Carla J Herman, Vallabh Shah
BACKGROUND: The unintentional death rate from falls is higher among American Indians from the US Southwest than from other regions in the country. The Zuni Pueblo is a geographically isolated, rural American Indian community located in western New Mexico. Education and screening for falls risk is lacking in this community and may be needed to reduce falls and falls-related illness and death. COMMUNITY CONTEXT: Building on a 17-year relationship with the Zuni Health Initiative, meetings were held with Zuni tribal leadership, staff from the Zuni Senior Center and Zuni Home Health Services, members of the Zuni Comprehensive Community Health Center, Indian Health Service, and Zuni community health representatives (CHRs) to discuss elder falls in the community...
January 19, 2017: Preventing Chronic Disease
https://www.readbyqxmd.com/read/28103081/characterization-of-the-school-neighborhood-food-environment-in-three-mexican-cities
#7
Erica G Soltero, Luis Ortiz Hernández, Edtna Jauregui, Lucie Lévesque, Juan Lopez Y Taylor, Simón Barquera, Rebecca E Lee
Food resources in school neighborhoods can negatively influence diet; however, this environment is understudied. This study characterized the school neighborhood food environment in Guadalajara (n=11), Puerto Vallarta (n=7), and Mexico City (n=14). Convenience stores, table-service restaurants, and taco stands were highly available in all three cities. Grocery stores were highly available in Mexico City school neighborhoods, yet less frequently observed in Guadalajara and Puerto Vallarta. Socioeconomic differences in food cart and grocery store availability were observed in Guadalajara and Puerto Vallarta...
January 19, 2017: Ecology of Food and Nutrition
https://www.readbyqxmd.com/read/28101587/factors-limiting-formation-of-community-forestry-enterprises-in-the-southern-mixteca-region-of-oaxaca-mexico
#8
José Antonio Hernández-Aguilar, Héctor Sergio Cortina-Villar, Luis Enrique García-Barrios, Miguel Ángel Castillo-Santiago
Many studies have considered community-based forestry enterprises to be the best option for development of rural Mexican communities with forests. While some of Mexico's rural communities with forests receive significant economic and social benefits from having a community forestry enterprise, the majority have not formed such enterprises. The purpose of this article is to identify and describe factors limiting the formation of community forestry enterprise in rural communities with temperate forests in the Southern Mixteca region of Oaxaca, Mexico...
January 18, 2017: Environmental Management
https://www.readbyqxmd.com/read/28099753/correlation-between-rapid-hiv-testing-and-fourth-generation-elisa-results-for-hiv-detection-among-pregnant-patients-in-the-delivery-room
#9
Alejandro G Almaguer, Lidia Mendoza-Flores, Luis A Sánchez-López, Laura A Palau-Dávila, Magaly Padilla-Orozco, Adrián Camacho-Ortiz
OBJECTIVE: To analyze the usefulness of rapid HIV testing in pregnant patients in the delivery room. METHODS: This prospective study compared a rapid test and a fourth-generation enzyme-linked immunoassay (ELISA) for HIV screening among pregnant patients admitted in labor with an unknown HIV status at a university hospital in Mexico between July 2015 and February 2016. Pearson correlation analysis was performed, and the diagnostic accuracy of the two tests was assessed with HIV RNA polymerase chain reaction (PCR) as the reference method...
January 5, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28099703/prevalence-and-3-year-persistence-of-human-papillomavirus-serotypes-in-asymptomatic-patients-in-northern-mexico
#10
Oscar R Fajardo-Ramírez, María C Barboza-Cerda, Rocío Ortiz-López, Augusto Rojas-Martínez, María L Garza-Rodríguez, Abel Sepúlveda-Flores, Juan F González-Guerrero, Sofía Bernal-Silva, Ricardo M Cerda-Flores, Itzel E Calleja-Macías, Socorro Rodríguez-Flores, Esthela Sandoval-Guzmán, Teresa Plascencia-Solis, Patricia Pérez-Reyes, Jesús Z Villarreal, Hugo A Barrera-Saldaña
OBJECTIVE: To investigate clinical outcomes and 3-year persistence of human papillomavirus (HPV) infections among women in Mexico. METHODS: A prospective study enrolled sexually active women attending primary healthcare clinics in metropolitan Monterrey, Mexico, between June 3 and August 30, 2002. Baseline data were collected and participants underwent HPV screening. Patients with HPV infections were asked to attend a repeat screening appointment after 3 years, when the same screening data were gathered...
January 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28099548/teledermatology-in-tijuana-mexico
#11
Megan Brown
The Health Frontiers in Tijuana (HFiT) clinic is a binational partnership between the University of California, San Diego School of Medicine (San Diego, California); the Universidad Autónoma de Baja California School of Medicine (Tijuana, Mexico); and Desayunador Salesiano Padre Chava, a community grassroots organization in Tijuana, Mexico. Health Frontiers in Tijuana provides accessible quality health care for the underserved in Tijuana's Zona Norte. This article is a narrative meant to share my clinical experience as a dermatology resident who worked with HFiT to establish teledermatology services at this clinic...
December 2016: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28099500/genetic-analysis-of-vibrio-parahaemolyticus-o3-k6-strains-that-have-been-isolated-in-mexico-since-1998
#12
Abraham Guerrero, Marcial Leonardo Lizárraga-Partida, Bruno Gómez Gil Rodríguez, Alexei Fedorovish Licea-Navarro, Valeria Jeanette Revilla-Castellanos, Irma Wong-Chang, Ricardo González-Sánchez
Vibrio parahaemolyticus is an important human pathogen that has been isolated worldwide from clinical cases, most of which have been associated with seafood consumption. Environmental and clinical toxigenic strains of V. parahaemolyticus that were isolated in Mexico from 1998 to 2012, including those from the only outbreak that has been reported in this country, were characterized genetically to assess the presence of the O3:K6 pandemic clone, and their genetic relationship to strains that are related to the pandemic clonal complex (CC3)...
2017: PloS One
https://www.readbyqxmd.com/read/28097845/-fatal-case-of-rickettsiosis-in-a-toddler-from-southeastern-mexico
#13
César Lugo-Caballero, Karla Dzul-Rosado, Georgina Rodríguez-Moreno, Raúl Tello-Martín, Karina López-Ávila, Jorge Zavala-Castro
Rocky Mountain spotted fever is a disease caused by Rickettsia rickettsii, a bacteria transmitted by infected ticks. It is characterized by fever, exanthema, arthralgias and myalgias; but sometimes its clinical presentation is non specific. Due to its similarities with other exanthematic diseases like dengue or chikungunya, Rocky Mountain spotted fever is not a first line diagnosis, even though countries like Mexico show the ecologic and socioeconomic characteristics that favor its transmission, with a 30% mortality rate among pediatric patients...
1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28096137/introduction-to-the-yogurt-in-nutrition-initiative-at-the-first-symposium-of-yogurt-in-mexico-the-balanced-diet-initiative
#14
REVIEW
Armando R Tovar, Guadalupe Herrera
In some European countries, yogurt consumption is common. However, such consumption is not common in Latin America, particularly in Mexico, partially because of the lack of a cultural tradition of consuming yogurt. Moreover, we also know that little information about the health benefits associated with yogurt consumption has been provided to the Mexican population. Thus, there is an immediate need to provide, at least to the nutrition community in the country, current scientific evidence about the health benefits of yogurt, with the aim that yogurt be included as part of the functional foods recommended to the population...
January 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28095931/anger-rumination-scale-validation-in-mexico
#15
Norma Ortega Andrade, Raúl Alcázar-Olán, Oscar Mariano Matías, Ana Rivera Guerrero, Alejandra Domínguez Espinosa
The aim of the study was to assess the validity of the Anger Rumination Scale (ARS; Sukhodolsky, Golub, & Cromwell, 2001) in a Mexican sample (n = 700, M age = 38.6, SD = 12.42). Through confirmatory factor analysis and using modification indices, the four-factor structure of the original scale was replicated: angry afterthoughts, thoughts of revenge, angry memories, and understanding of causes. In addition, the four-factor model had better goodness of fit indices than rival models with three and two factors...
January 18, 2017: Spanish Journal of Psychology
https://www.readbyqxmd.com/read/28095706/translation-and-pilot-testing-of-a-measure-to-assess-hypertension-self-care-activities-among-hispanics
#16
Jan Warren-Findlow, Maren J Coffman, Celia A Karp
OBJECTIVE: Hispanics in the US have high rates of uncontrolled hypertension in comparison to non-Hispanic whites. This pilot study reports on the translation of a validated measure, the Hypertension Self-Care Activity Level Effects (H-SCALE), for use with Spanish speakers. The H-SCALE assesses Hispanics' adherence to lifestyle activities that contribute to primary and secondary risk reduction of high blood pressure. DESIGN: Cross-sectional data were collected from Hispanic primary care patients attending a free health clinic in Charlotte, NC...
January 17, 2017: Ethnicity & Health
https://www.readbyqxmd.com/read/28095604/vocal-repertoire-of-free-ranging-black-howler-monkeys-alouatta-pigra-call-types-contexts-and-sex-related-contributions
#17
Margarita Briseño-Jaramillo, Véronique Biquand, Alejandro Estrada, Alban Lemasson
Alouatta species utter the most powerful primate vocalizations in the Neotropics and are well-known for their loud and long-lasting male howling bouts. However, the diversity of acoustic structures used in these howling bouts, as well as in non-howling contexts, and the relative contribution of the different group members to the entire vocal repertoire, needed to be explored further. This report provides the first detailed description of the vocal repertoire of black howler monkeys (Alouatta pigra), focusing on acoustic structures and contexts of emission of both loud and soft calls as well as on the contribution rate of males and females to the different call types...
January 17, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/28095183/total-mercury-concentrations-in-white-and-striped-mullet-mugil-curema-and-m-cephalus-from-a-coastal-lagoon-in-the-se-gulf-of-california
#18
Jorge Ruelas-Inzunza, Cinthia K Kohen-Sandoval, Mauricio A Ramos-Osuna, Karla G Sánchez-Osuna, Pamela Spanopoulos-Zarco, Carolina G Delgado-Alvarez, Felipe Amezcua-Martínez
The White and Striped mullets (Mugil curema and M. cephalus) are highly abundant and commercially important estuarine fish in northwest (NW) Mexico. Because of their feeding habits and habitat, they are likely to accumulate mercury (Hg) in their muscle and liver. The objectives of this study were to determine total Hg distribution in the tissues of interest, to correlate Hg levels between tissues and with length and weight of fish, to estimate the percentage weekly intake (PWI) of total Hg and methyl Hg (MeHg) through consumption of both mullet species, and to compare total Hg levels with mullets from other areas...
January 17, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28094800/relationship-of-hyposalivation-and-xerostomia-in-mexican-elderly-with-socioeconomic-sociodemographic-and-dental-factors
#19
Horacio Islas-Granillo, Aida Borges-Yáñez, Miguel Ángel Fernández-Barrera, Leticia Ávila-Burgos, Nuria Patiño-Marín, María de Lourdes Márquez-Corona, Martha Mendoza-Rodríguez, Carlo Eduardo Medina-Solís
We determined the prevalence of hyposalivation and xerostomia in older Mexicans (≥60 years), and its relationship with diverse factors. A cross-sectional study was realized in elderly subjects from Pachuca, Mexico. Chewing-stimulated saliva was collected under standardized conditions and salivary flow was measured; subjects were considered to have hyposalivation if their stimulated salivary flow was less than 0.7 mL per minute. Xerostomia was evaluated by asking subjects 'Does your mouth feel dry?'. Hyposalivation was present in 59...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28094565/the-decline-in-hiv-1-drug-resistance-in-heavily-antiretroviral-experienced-patients-is-associated-with-optimized-prescriptions-in-a-treatment-roll-out-program-in-mexico
#20
Juan J Calva, Silvana Larrea, Marco A Tapia-Maltos, Mauricio Ostrosky-Frid, Carolina Lara, Pedro Aguilar-Salinas, Héctor Rivera, Juan P Ramírez
A decrease in the rate of acquired antiretroviral (ARV) drug-resistance (ADR) over time has been documented in high-income settings, but data on the determinants of this phenomenon are lacking. We tested the hypothesis that in heavily ARV-experienced patients in the Mexican ARV therapy (ART) roll-out program, the drop in ADR would be associated with changes in ARV drug usage. Genotypic resistance tests obtained from 974 HIV-infected patients with virologic failure and at least 2 previously failed ARV regimens from throughout the country were analyzed for the presence of nRTI, NNRTI and PI resistance-associated mutations (RAMs)...
January 17, 2017: AIDS Research and Human Retroviruses
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