Juana del Valle-Mendoza
Universidad Peruana de Ciencias Aplicadas
OutbreakInternal medicineVirologyPediatricsVirusZika virusBartonella bacilliformisBordetella pertussisAsymptomaticArbovirusBartonellamyalgiaCarrion's diseaseDengue virusChikungunyaPopulationDengue feverMedicineBiologyMicrobiology
46Publications
10H-index
285Citations
Publications 51
Newest
#1Juana del Valle-Mendoza (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 10
Last. Luis J. del Valle (UPC: Polytechnic University of Catalonia)H-Index: 28
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OBJECTIVE To determine the general and genotype-specific prevalence of HPV and to identify potential risk factors for the infection in a population-based screening of Peruvian women. RESULTS A total of 524 samples were analyzed by PCR and a total of 100 HPV positive samples were found, of which 89 were high-risk, 19 were probably oncogenic, 9 were low-risk and 27 other HPV types. The 26-35 and 36-45 age groups showed the highest proportion of HPV positive samples with a total of 37% (37/100) and...
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#1Juana del Valle-Mendoza (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 10
#2Carlos Palomares-Reyes (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 5
Last. Wilmer Silva-Caso (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 10
view all 12 authors...
OBJECTIVE This study was carried out to determine the prevalence of leptospirosis among febrile patients with a suspicious clinical diagnosis of dengue fever in northern Peru. RESULTS A total of 276 serum samples from patients with acute febrile illness (AFI) and suspected diagnosis for dengue virus (DENV) were analyzed. We identified an etiological agent in 121 (47.5%) patients, DENV was detected in 30.4% of the cases, leptospirosis in 11.2% and co-infection by both pathogens was observed in 5....
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#1Angie Joyce Hamasaki-Matos (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 1
#2Katherine Marlene Cóndor-Marín (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 1
Last. Juana del Valle-Mendoza (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 10
view all 8 authors...
OBJECTIVE The objective of this study was to characterize the composition of the gut microbiota in type 2 Diabetes Mellitus (T2DM) patients with adequate and inadequate metabolic control, and its relationship with fiber consumption. RESULTS A total of 26 patients with type 2 diabetes mellitus (T2DM) were enrolled, of which 7 (26.9%) cases had adequate metabolic control (HbA1c < 7%) and 19 (73.1%) inadequate metabolic control (HbA1c ≥ 7%). It was observed that among patients with controlled T2DM,...
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#2Wilmer Silva-CasoH-Index: 10
Last. Sungmin KymH-Index: 4
view all 14 authors...
The impact of respiratory coinfections in COVID-19 is still not well understood despite the growing evidence that consider coinfections greater than expected. A total of 295 patients older than 18 years of age, hospitalized with a confirmed diagnosis of moderate/severe pneumonia due to SARS-CoV-2 infection (according to definitions established by the Ministry of Health of Peru) were enrolled during the study period. A coinfection with one or more respiratory pathogens was detected in 154 (52.2%)...
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#1Isaac Peña-Tuesta (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 2
#2Cristina del Valle-Vargas (University of Barcelona)H-Index: 1
Last. Juana del Valle-Mendoza (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 10
view all 7 authors...
OBJECTIVE This study aimed to determine the prevalence of A. baumannii in children aged less than 1 year admitted with a clinical diagnosis of whooping cough. RESULTS A total of 225 nasopharyngeal samples from children under 1 year old hospitalized with clinical diagnosis of whooping cough were studied from January 2010 to July 2012. The presence of A. baumannii was detected in 20.89% (47/225) of the nasopharyngeal swab samples. Among the 47 patients with A. baumannii: 5 were diagnosed with A. b...
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#1Roberto Alcántara (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 2
#2Katherin Peñaranda (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 2
Last. Pohl Milón (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 14
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Summary null Low- and middle-income countries (LMICs) are significantly affected by SARS-CoV-2, partially due to their limited capacity for local production and implementation of molecular testing. Here, we provide detailed methods and validation of a molecular toolkit that can be readily produced and deployed using laboratory equipment available in LMICs. Our results show that lab-scale production of enzymes and nucleic acids can supply over 50,000 tests per production batch. The optimized one-...
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#1Miguel Angel Aguilar-Luis (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 10
#2Hugo Carrillo-Ng (UPCH: Cayetano Heredia University)H-Index: 2
Last. Yordi Tarazona-Castro (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 1
view all 13 authors...
Objective: To describe and molecularly characterize an outbreak of dengue virus (DENV) infection in Cajamarca, an Andean region in Peru. Methods: A total of 359 serum samples from patients with acute febrile illness were assessed for the presence of DENV via RT-PCR, ELISA NS1, IgM and IgG in Cajamarca, Peru from January 2017 to June 2017. The evaluation of the different diagnostic tests and their applicability was performed. Results: Dengue virus was detected in 24.7% of samples by RT-PCR. Meanw...
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#1Cláudia Gomes (University of Barcelona)H-Index: 13
#2Maria J. Pons (Scientific University of the South)H-Index: 15
Last. Joaquim Ruiz (University of Barcelona)H-Index: 50
view all 5 authors...
Bartonella bacilliformis is the causal agent of Carrion’s disease, an overlooked illness endemic in the Andean Mountains with Peru being the most affected country. The diagnostic of this illness is a challenge due to the limited resources and the common symptomatology with other infectious diseases. The goal of this study was to identify immunogenic peptides from Pap31 and succinyl-CoA synthetase α (SCS-α) of B. bacilliformis that might be suitable for developing a serologic tool. The immunodomi...
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#1Miguel Angel Aguilar-Luis (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 10
#2Leslie Casas Apayco (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 1
Last. Juana del Valle-Mendoza (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 10
view all 8 authors...
Background. Severe periodontal disease is highly prevalent worldwide, affecting 20% of the population between the ages of 35 and 44 years. The etiological epidemiology in Peru is scarce, even though some studies describe a prevalence of 48.5% of periodontal disease in the general population. Periodontitis is one of the most prevalent oral diseases associated with site-specific changes in the oral microbiota and it has been associated with a socioeconomic state. This study aimed to determine the ...
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Background and Objectives Pertussis is an infectious disease caused by the Gram-negative bacterium Bordetella pertussis. In Peru, actual public health programs indicate that vaccination against B. pertussis must be mandatory and generalized, besides all detected cases must be reported. The objective of this study was to determine the prevalence of B. pertussis among children under five years of age with a presumptive diagnosis of whopping cough in Cajamarca, a region located in northern Peru. Ma...
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