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Ramirez-Hinojosa JP, Rodriguez-Sanchez Y, Romero-Gonzalez AK, Chavez-Gutierrez M, Gonzalez-Arenas NR, Ibarra-Arce A, Arroyo-Escalante S, Zavaleta-Villa B, Leon-Juarez M, Cruz-Holguin VJ, Espinosa de Los Monteros-Perez LE, Olivo-Diaz A, Hernandez-Castro R, Suarez-Roa L, Prado-Calleros H, Sierra-Martinez O, Avila-Ramirez G, Flisser A, Maravilla P, Romero-Valdovinos M. Association between cycle threshold (C t ) values and clinical and laboratory data in inpatients with COVID-19 and asymptomatic health workers. J Med Virol 2021; 93:5969-5976. [PMID: 34196423 PMCID: PMC8427125 DOI: 10.1002/jmv.27170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 06/28/2021] [Indexed: 12/18/2022]
Abstract
In‐house assays for the diagnosis of severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) by quantitative reverse‐transcription polymerase chain reaction (qRT‐PCR), are feasible alternatives, particularly in developing countries. Cycle threshold (Ct) values obtained by qRT‐PCR were compared with clinical and laboratory data from saliva of inpatients with COVID‐19 and asymptomatic health workers (AHW) were studied. Saliva specimens from 58 inpatients confirmed by qRT‐PCR for SARS‐CoV‐2 using nasopharyngeal specimens, and 105 AHW were studied by qRT‐PCR using three sets of primers for the N (N1, N2, and N3) gene of SARS‐CoV‐2, according to the CDC Diagnostic Panel protocol, showing a positivity of 88% for inpatients and 8% for AHW. Bivariate analysis revealed an association between Ct < 38.0 values for N2 and mechanical ventilation assistance among patients (p = .013). In addition, values of aspartate‐transaminase, lactate dehydrogenase, and ferritin showed significant correlations with Ct values of N1 and N3 genes in inpatients. Therefore, our results show that Ct values correlate with some relevant clinical data for inpatients with COVID‐19.
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Affiliation(s)
| | | | | | | | | | - Aurora Ibarra-Arce
- División de Parasitología, Hospital General "Dr. Manuel Gea Gonzalez", Mexico City, Mexico
| | - Sara Arroyo-Escalante
- División de Parasitología, Hospital General "Dr. Manuel Gea Gonzalez", Mexico City, Mexico
| | - Beatriz Zavaleta-Villa
- División de Parasitología, Hospital General "Dr. Manuel Gea Gonzalez", Mexico City, Mexico
| | - Moises Leon-Juarez
- Departamento de Inmunobioquimica, Instituto Nacional de Perinatologia, Mexico City, Mexico
| | | | | | - Angelica Olivo-Diaz
- División de Parasitología, Hospital General "Dr. Manuel Gea Gonzalez", Mexico City, Mexico
| | | | - Lourdes Suarez-Roa
- División de Parasitología, Hospital General "Dr. Manuel Gea Gonzalez", Mexico City, Mexico
| | - Hector Prado-Calleros
- División de Parasitología, Hospital General "Dr. Manuel Gea Gonzalez", Mexico City, Mexico
| | | | - Guillermina Avila-Ramirez
- Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autonoma de Mexico (UNAM), Mexico City, Mexico
| | - Ana Flisser
- Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autonoma de Mexico (UNAM), Mexico City, Mexico
| | - Pablo Maravilla
- División de Parasitología, Hospital General "Dr. Manuel Gea Gonzalez", Mexico City, Mexico
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Plowes-Hernández O, Prado-Calleros H, Arroyo-Escalante S, Zavaleta-Villa B, Flores-Osorio J, Ibarra Arce A, Romero-Valdovinos M, Olivo-Díaz A. Cervical lymph node tuberculosis and TNF, IL8, IL10, IL12B and IFNG polymorphisms. New Microbiol 2021; 44:24-32. [PMID: 33582825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 03/23/2021] [Indexed: 06/12/2023]
Abstract
Cervical lymph node tuberculosis (LNTB) is the most common manifestation of extrapulmonary tuberculosis, resulting from the interaction of environmental and genetic factors. The immune response against TB is regulated by several cytokines, which have single nucleotide polymorphisms (SNPs), leading to different levels of expression. The aim of this study was to evaluate the association of LNTB with the TNF, IL8, IL10, IL12B and IFNG gene polymorphisms in Mexican patients. We investigated the association of ten SNPs in 14 patients with LNTB and 138 healthy controls. Significant differences were found for the allele TNF-238A (P=0.03) and the genotypes TNF-238GA (P=0.03), IL8+396GG (P=0.01) and IL12B+1188CC (P=0.04). Allele IL8+781C showed some association trend (P=0.08). Haplotypes TNF-AA and IL10-GTA were of susceptibility, whereas haplotype IL8-ATT was of protection. No association was found with IFNG. The association of these polymorphisms with extrapulmonary TB was compared in different populations. Our results suggest that these cytokine SNPs may influence the manifestation of LNTB in Mexican patients; however, we are aware of the limitations of our study, so it is necessary to make a replica using a larger sample of patients, as well as an increased number of cytokines with SNPs.
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Affiliation(s)
- Olga Plowes-Hernández
- División de Otorrinolaringología Cirugía de Cabeza y Cuello, Hospital General "Dr. Manuel Gea González", Calzada de Tlalpan 4800, Col. Sección XVI, CP 14080, Ciudad de México, México
| | - Héctor Prado-Calleros
- Dirección de Enseñanza e Investigación, Hospital General "Dr. Manuel Gea González", Calzada de Tlalpan 4800, Col. Sección XVI, CP 14080, Ciudad de México, México
| | - Sara Arroyo-Escalante
- Departamento de Biología Molecular e Histocompatibilidad, Hospital General "Dr. Manuel Gea González", Calzada de Tlalpan 4800, Col. Sección XVI, CP 14080, Ciudad de México, México
| | - Beatriz Zavaleta-Villa
- Departamento de Biología Molecular e Histocompatibilidad, Hospital General "Dr. Manuel Gea González", Calzada de Tlalpan 4800, Col. Sección XVI, CP 14080, Ciudad de México, México
| | - Javier Flores-Osorio
- Departamento de Biología Molecular e Histocompatibilidad, Hospital General "Dr. Manuel Gea González", Calzada de Tlalpan 4800, Col. Sección XVI, CP 14080, Ciudad de México, México
| | - Aurora Ibarra Arce
- Departamento de Biología Molecular e Histocompatibilidad, Hospital General "Dr. Manuel Gea González", Calzada de Tlalpan 4800, Col. Sección XVI, CP 14080, Ciudad de México, México
| | - Mirza Romero-Valdovinos
- Departamento de Biología Molecular e Histocompatibilidad, Hospital General "Dr. Manuel Gea González", Calzada de Tlalpan 4800, Col. Sección XVI, CP 14080, Ciudad de México, México
| | - Angélica Olivo-Díaz
- Departamento de Biología Molecular e Histocompatibilidad, Hospital General "Dr. Manuel Gea González", Calzada de Tlalpan 4800, Col. Sección XVI, CP 14080, Ciudad de México, México
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Escutia-Guzman Y, Martinez-Flores WA, Martinez-Ocaña J, Martinez-Pimentel R, Benitez-Ramirez M, Martinez-Hernandez F, Arroyo-Escalante S, Romero-Valdovinos M, Orozco-Mosqueda GE, Maravilla P. An Unusual Case of Extra-Enteric Blastocystosis in the Uterine Cervix. Korean J Parasitol 2020; 58:571-576. [PMID: 33202510 PMCID: PMC7672234 DOI: 10.3347/kjp.2020.58.5.571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 08/28/2020] [Indexed: 11/23/2022]
Abstract
Extra-enteric infections by Blastocystis spp. have rarely been documented. Here, we report a case of extra-enteric blastocystosis in a patient with minimal cervicitis symptoms. A 47-year-old Hispanic female patient was attended in a primary health centre in Michoacan state, Mexico, for her routine gynaecological medical examination. As only symptom, she referred to a slight vaginal itching. The presence of several vacuolar-stages of Blastocystis spp. were identified by Papanicolaou staining; molecular identification was attempted by culture-PCR sequencing of a region of 18S gene from cervical and faecal samples obtained 2 months after cytological examination, even when patient declared that she tried self-medicating with vaginal ovules. Blastocystis ST1 was identified only in the faecal sample. The presence of Blastocystis spp. in the cervix of a patient with scarce symptomatology, demonstrates the extraordinary flexibility of this microorganism to adapt to new environments and niches.
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Affiliation(s)
- Yolanda Escutia-Guzman
- Coordinacion de Cancer Cervicouterino, Laboratorio Estatal de Salud Publica, Morelia 58270, Michoacan, Mexico
| | | | | | | | - Marisol Benitez-Ramirez
- Coordinacion de Cancer Cervicouterino, Laboratorio Estatal de Salud Publica, Morelia 58270, Michoacan, Mexico
| | | | | | | | | | - Pablo Maravilla
- Hospital General "Dr. Manuel Gea Gonzalez", Mexico City 14080, Mexico
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García-Méndez J, Cervera-Ceballos E, Atilano-López D, Arroyo-Escalante S, Moncada-Barrón D, Leyva-Leyva M, Hernández-Castro R, Carrillo-Casas EM. Leptospirosis in an asplenic patient -case report. BMC Infect Dis 2020; 20:186. [PMID: 32111168 PMCID: PMC7048021 DOI: 10.1186/s12879-020-4869-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 02/11/2020] [Indexed: 11/13/2022] Open
Abstract
Background The presentation of clinical leptospirosis has been historically associated with animal workers, slaughterhouse workers and medical veterinarians. This association has shifted to be related to flooding events and outdoor activities; few cases are related to high-risk factors found in immunosuppressed patients. Scarcely a handful of cases have serological evidence of immune response against Leptospira serovar Bratislava representing serogroup Australis, a serovar associated with poor reproductive performance in swine and horses, and recently with cats. Case presentation Herein, we describe a rare clinical presentation of disseminated Leptospira infection in an immunosuppressed 65-year-old woman. She was admitted to the emergency room with fever, bacteraemia, bilateral uveitis and pulmonary involvement. The patient denied outdoor activities; she only had wide exposure to faeces and urine from cats living in her home. Her medical history included idiopathic thrombocytopenic purpura (ITP) diagnosed at the age of 18. She did not respond to medical treatment, and a splenectomy was performed. At age 60, she was diagnosed with Chronic Myeloid Leukemia (CML), and was treated with a tyrosine kinase inhibitor (TKI) –Imatinib. The patient voluntarily discontinued the treatment for the last 6 months. After extensive workup, no microorganisms were identified by the commonly used stains in microbiology. The diagnosis was performed through dark-field microscopy, microagglutination test (MAT), Leptospira genus-specific PCR, the IS1500 PCR for identification of pathogenic species, and 16S based sequencing for the genus identification. Conclusion Immunosuppressed patients may acquire uncommon infections from ubiquitous microorganisms. In this case, serology evidence of exposure to Leptospira serovar Bratislava by MAT and the presence of the Leptospira genus were identified. It should be on mind for the diagnosis in otherwise healthy patients, and thoroughly search on splenectomised patients exposed to animals. Additionally, this report highlights the usefulness of PCR for diagnosis of this potentially life-threatening illness.
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Affiliation(s)
- J García-Méndez
- Dirección de Docencia, Instituto Nacional de Cancerología, Mexico City, Mexico.,Departamento de Microbiología y Parasitología, Facultad de Medicina, UNAM, Mexico City, Mexico
| | - E Cervera-Ceballos
- Dirección de Docencia, Instituto Nacional de Cancerología, Mexico City, Mexico
| | - D Atilano-López
- Laboratorio de Diagnóstico-Bacteriología, Sección Leptospira, Facultad de Medicina Veterinaria y Zootecnia, Mexico City, Mexico
| | - S Arroyo-Escalante
- División de Laboratorio Clínico, Hospital General "Dr. Manuel Gea González", Mexico City, Mexico
| | - D Moncada-Barrón
- División de Laboratorio Clínico, Hospital General "Dr. Manuel Gea González", Mexico City, Mexico
| | - M Leyva-Leyva
- Departamento de Biología Molecular e Histocompatibilidad, Dirección de investigación, Hospital General "Dr. Manuel Gea González", Mexico City, Mexico
| | - R Hernández-Castro
- Departamento de Ecología de Agentes Patógenos, Dirección de investigación, Hospital General "Dr. Manuel Gea González", Mexico City, Mexico
| | - E M Carrillo-Casas
- Departamento de Biología Molecular e Histocompatibilidad, Dirección de investigación, Hospital General "Dr. Manuel Gea González", Mexico City, Mexico.
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Moreno-Coutiño G, Sánchez-Cárdenas CD, Bello-Hernández Y, Fernández-Martínez R, Arroyo-Escalante S, Arenas R. Isolation of Malassezia spp. in HIV-positive patients with and without seborrheic dermatitis. An Bras Dermatol 2019; 94:527-531. [PMID: 31777352 PMCID: PMC6857564 DOI: 10.1016/j.abd.2019.09.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 06/10/2018] [Indexed: 12/02/2022] Open
Abstract
Background Malassezia, a skin saprophyte, is frequently isolated from patients with seborrheic dermatitis, which is one of the most common dermatoses in HIV-infected patients. Its role in pathophysiology has not been defined. Objective To determine whether patients living with HIV and seborrheic dermatitis have more Malassezia than those without seborrheic dermatitis. Method This is an descriptive, observational, prospective cross-sectional study to which all adult patients living with HIV that attend the infectious disease outpatient clinic at the Dr. Manuel Gea González General Hospital were invited. Patients presenting with scale and erythema were included in Group 1, while patients without erythema were included in Group 2. Samples were taken from all patients for smear and culture. Results Thirty patients were included in each group. All patients with seborrheic dermatitis had a positive smear, with varying amounts of yeasts. In the control group, 36.7% of patients had a negative smear. The results are statistically significant, as well as the number of colonies in the cultures. Study limitations The study used a small sample size and the subspecies were not identified. Conclusions Patients with clinical manifestations of seborrheic dermatitis have larger amounts of Malassezia. Further studies need to be performed to analyze if the greater amount is related to imbalances in the microbiota of the skin.
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Affiliation(s)
- Gabriela Moreno-Coutiño
- Mycology Department, Dr. Manuel Gea González General Hospital, Delegación Tlalpan, Mexico City, Mexico.
| | | | - Yesenia Bello-Hernández
- Medical Student, Dr. Manuel Gea González General Hospital, Delegación Tlalpan, Mexico City, Mexico
| | - Ramón Fernández-Martínez
- Mycology Department, Dr. Manuel Gea González General Hospital, Delegación Tlalpan, Mexico City, Mexico
| | - Sara Arroyo-Escalante
- Research Department, Dr. Manuel Gea González General Hospital, Delegación Tlalpan, Mexico City, Mexico
| | - Roberto Arenas
- Head of the Mycology Department, Dr. Manuel Gea González General Hospital, Delegación Tlalpan, Mexico City, Mexico
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Garza-González E, Morfín-Otero R, Mendoza-Olazarán S, Bocanegra-Ibarias P, Flores-Treviño S, Rodríguez-Noriega E, Ponce-de-León A, Sanchez-Francia D, Franco-Cendejas R, Arroyo-Escalante S, Velázquez-Acosta C, Rojas-Larios F, Quintanilla LJ, Maldonado-Anicacio JY, Martínez-Miranda R, Ostos-Cantú HL, Gomez-Choel A, Jaime-Sanchez JL, Avilés-Benítez LK, Feliciano-Guzmán JM, Peña-López CD, Couoh-May CA, Molina-Jaimes A, Vázquez -Narvaez EG, Rincón-Zuno J, Rivera-Garay R, Galindo-Espinoza A, Martínez-Ramirez A, Mora JP, Corte- Rojas RE, López-Ovilla I, Monroy-Colin VA, Barajas-Magallón JM, Morales-De-la-Peña CT, Aguirre-Burciaga E, Coronado-Ramírez M, Rosales-García AA, Ayala-Tarín MDJ, Sida-Rodríguez S, Pérez-Vega BA, Navarro-Rodríguez A, Juárez-Velázquez GE, Cetina-Umaña CM, Mena-Ramírez JP, Canizales-Oviedo J, Moreno-Méndez MI, Romero-Romero D, Arévalo-Mejía A, Cobos-Canul DI, Aguilar-Orozco G, Silva-Sánchez J, Camacho-Ortiz A. A snapshot of antimicrobial resistance in Mexico. Results from 47 centers from 20 states during a six-month period. PLoS One 2019; 14:e0209865. [PMID: 30913243 PMCID: PMC6435111 DOI: 10.1371/journal.pone.0209865] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 12/12/2018] [Indexed: 01/22/2023] Open
Abstract
Aim We aimed to assess the resistance rates of antimicrobial-resistant, in bacterial pathogens of epidemiological importance in 47 Mexican centers. Material and methods In this retrospective study, we included a stratified sample of 47 centers, covering 20 Mexican states. Selected isolates considered as potential causatives of disease collected over a 6-month period were included. Laboratories employed their usual methods to perform microbiological studies. The results were deposited into a database and analyzed with the WHONET 5.6 software. Results In this 6-month study, a total of 22,943 strains were included. Regarding Gram-negatives, carbapenem resistance was detected in ≤ 3% in Escherichia coli, 12.5% in Klebsiella sp. and Enterobacter sp., and up to 40% in Pseudomonas aeruginosa; in the latter, the resistance rate for piperacillin-tazobactam (TZP) was as high as 19.1%. In Acinetobacter sp., resistance rates for cefepime, ciprofloxacin, meropenem, and TZP were higher than 50%. Regarding Gram-positives, methicillin resistance in Staphylococcus aureus (MRSA) was as high as 21.4%, and vancomycin (VAN) resistance reached up to 21% in Enterococcus faecium. Acinetobacter sp. presented the highest multidrug resistance (53%) followed by Klebsiella sp. (22.6%) and E. coli (19.4%). Conclusion The multidrug resistance of Acinetobacter sp., Klebsiella sp. and E. coli and the carbapenem resistance in specific groups of enterobacteria deserve special attention in Mexico. Vancomycin-resistant enterococci (VRE) and MRSA are common in our hospitals. Our results present valuable information for the implementation of measures to control drug resistance.
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Affiliation(s)
- Elvira Garza-González
- Hospital Universitario Dr. José Eleuterio González, Monterrey, Nuevo León, Mexico
- * E-mail:
| | - Rayo Morfín-Otero
- Hospital Civil de Guadalajara e Instituto de Patología Infecciosa, Guadalajara, Jalisco, Mexico
| | | | | | | | | | - Alfredo Ponce-de-León
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, Mexico
| | | | - Rafael Franco-Cendejas
- Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México, Mexico
| | | | | | - Fabián Rojas-Larios
- Hospital Regional Universitario de los Servicios de Salud del Estado de Colima y Facultad de Medicina, Universidad de Colima, Colima, Colima, Mexico
| | | | | | - Rafael Martínez-Miranda
- Hospital General de Mexicali/Facultad de Medicina Mexicali UABC, Mexicali, Baja California, Mexico
| | | | | | | | | | | | | | - Carlos A. Couoh-May
- Hospital General de Mérida Yucatán “Dr. Agustín O ‘Horan”, Mérida, Yucatán, Mexico
| | - Aaron Molina-Jaimes
- Hospital Regional de Alta Especialidad Bicentenario de la Independencia, Tultitlán de Mariano Escobedo, Estado de México, Mexico
| | | | | | - Raúl Rivera-Garay
- Hospital Regional de Alta Especialidad del Bajío, León, Guanajuato, Mexico
| | | | | | - Javier P. Mora
- Hospital de Alta Especialidad de Veracruz, Veracruz, Veracruz, Mexico
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Juan P. Mena-Ramírez
- Hospital General de zona 21 Tepatitlán de Morelos, Tepatitlán de Morelos, Jalisco, Mexico
| | - Jorge Canizales-Oviedo
- Centro Universitario de Salud, UANL Pueblo Nuevo, Monterrey, Nuevo León, Mexico
- Centro Universitario de Salud, UANL Vicente Guerrero, Monterrey, Nuevo León, Mexico
| | | | - Daniel Romero-Romero
- Laboratorio de Análisis Bioquímico Clínicos "Louis Pasteur", Toluca, Estado de México, Mexico
| | | | | | | | | | - Adrián Camacho-Ortiz
- Hospital Universitario Dr. José Eleuterio González, Monterrey, Nuevo León, Mexico
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Contreras-Ruiz J, Fuentes-Suárez A, Arroyo-Escalante S, Moncada-Barron D, Sosa-de-Martínez MC, Maravilla-Franco E, Domínguez-Cherit JG. [Comparative study of the efficacy of larva therapy for debridement and control of bacterial burden compared to surgical debridement and topical application of an antimicrobial]. GAC MED MEX 2016; 152:78-87. [PMID: 27792719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
Maggot debridement therapy (MDT) is the use of medical grade maggots of the fly Lucilia sericata for wound debridement. Recent observations show that MDT decreases bacterial burden as well. Venous ulcers are the most commonly seen in wound clinics and require, besides adequate treatment of venous hypertension, proper wound bed preparation with debri dement of necrotic tissue and control of potential infections. To evaluate the efficacy of MDT in venous ulcers a randomized controlled trial was designed to compare MDT to surgical debridement and topical application of silver sulfadiazine (SSD) in 19 patients for 4 weeks. The study variables were area reduction, wound bed characteristics, pain, odor, anxiety and bacterial burden using quantitative tissue biopsies. MDT was effective as surgical debridement associated with topical SDD in the debridement of the wound and in reducing its size. A significant difference was observed in the reduction of bacterial burden in favor of the MDT group. Odor and anxiety increased in the MDT group without any difference in the pain intensity between groups. In conclusion, this study suggests that MDT is as effective as surgical debridement for the debridement of necrotic tissue and promote wound healing in venous ulcers and better at reducing bacterial burden.
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Affiliation(s)
- José Contreras-Ruiz
- Sección de Clínica Interdisciplinaria de Cuidado de Heridas y Estomas, División de Dermatología, Hospital General Dr. Manuel Gea González, Ciudad de México, México
| | - Adán Fuentes-Suárez
- Sección de Clínica Interdisciplinaria de Cuidado de Heridas y Estomas, División de Dermatología, Hospital General Dr. Manuel Gea González, Ciudad de México, México
| | - Sara Arroyo-Escalante
- Laboratorio de Microbiología, Hospital General Dr. Manuel Gea González, Ciudad de México, México
| | - David Moncada-Barron
- Laboratorio de Microbiología, Hospital General Dr. Manuel Gea González, Ciudad de México, México
| | | | - Ernesto Maravilla-Franco
- Laboratorio de Microbiología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, México
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Del Rio-Avila C, Rosario C, Arroyo-Escalante S, Carrillo-Casas EM, Díaz-Aparicio E, Suarez-Güemes F, Silva-Sanchez J, Xicohtencatl-Cortes J, Maravilla P, Hernández-Castro R. Characterisation of quinolone-resistant Escherichia coli of 1997 and 2005 isolates from poultry in Mexico. Br Poult Sci 2016; 57:494-500. [DOI: 10.1080/00071668.2016.1187716] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- C. Del Rio-Avila
- División de Estudios de Posgrado, Posgrado en Ciencias de la Salud y Producción Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Coyoacan, México
| | - C. Rosario
- Departamento de Medicina y Zootecnia de Aves, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Coyoacan, México
| | - S. Arroyo-Escalante
- Departamento de Biología Molecular e Histocompatibilidad, Hospital General “Dr. Manuel Gea González”, Tlalpan, México
| | - E. M. Carrillo-Casas
- Departamento de Biología Molecular e Histocompatibilidad, Hospital General “Dr. Manuel Gea González”, Tlalpan, México
| | - E. Díaz-Aparicio
- Departamento de Enfermedades en Pequeños Rumiantes, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Cuajimalpa, México
| | - F. Suarez-Güemes
- Departamento de Microbiología e Inmunología, Universidad Nacional Autónoma de México, Coyoacan, México
| | - J. Silva-Sanchez
- Departamento de Diagnóstico Epidemiológico, Instituto Nacional de Salud Pública, Cuernavaca, México
| | - J. Xicohtencatl-Cortes
- Laboratorio de Bacteriología Intestinal, Hospital Infantil de México, Cuauhtémoc, México
| | - P. Maravilla
- Departamento de Ecología de Agentes Patógenos, Hospital General “Dr. Manuel Gea González”, Tlalpan, México
| | - R. Hernández-Castro
- Departamento de Ecología de Agentes Patógenos, Hospital General “Dr. Manuel Gea González”, Tlalpan, México
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Ortega-Springall MF, Arroyo-Escalante S, Arenas R. Onycholysis and Chromonychia: A Case Caused by Trichosporon inkin. Skin Appendage Disord 2015; 1:144-6. [PMID: 27171745 DOI: 10.1159/000441065] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 09/10/2015] [Indexed: 11/19/2022] Open
Abstract
Yeasts cause only 5-10% of onychomycosis; the most common yeast is Candida albicans, and rarely Trichosporon spp. is found. Recently, it has become an important cause of fungemia with a high mortality rate in immunocompromised patients. Superficial infections caused by Trichosporon spp., including piedra and onychomycosis, occur in immunocompetent patients. Herein, we report a case of a fungal nail infection characterized by onycholysis and chromonychia caused by Trichosporon inkin.
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Affiliation(s)
| | - Sara Arroyo-Escalante
- Mycology Section, Department of Dermatology, 'Dr. Manuel Gea Gonzalez' General Hospital, Mexico City, Mexico
| | - Roberto Arenas
- Mycology Section, Department of Dermatology, 'Dr. Manuel Gea Gonzalez' General Hospital, Mexico City, Mexico
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Carrillo-Casas EM, Suástegui-Urquijo Z, Arroyo-Escalante S, Morales-Espinosa R, Moncada-Barrón D, Hernández-Delgado L, Méndez-Sánchez JL, Delgado-Sapién G, Navarro-Ocaña A, Manjarrez-Hernández Á, Xicohtencatl-Cortes J, Hernández-Castro R. E. coli outbreak in a neonate intensive care unit in a general hospital in Mexico City. Folia Microbiol (Praha) 2012; 58:229-34. [PMID: 23111604 DOI: 10.1007/s12223-012-0202-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Accepted: 10/16/2012] [Indexed: 11/26/2022]
Abstract
Nosocomial infections are a major cause of morbidity and mortality among neonates admitted to neonatal intensive care units (NICUs). The aim of this paper was to describe an outbreak of Escherichia coli among infants admitted to the NICU of the General Hospital "Dr. Manuel Gea Gonzalez" in May of 2008. The isolated E. coli strains were identified using standard biochemical methods. The susceptibilities of these strains were analysed by determining their minimal inhibitory concentrations. Following this, their molecular relationships to each other were assessed by pulsed field gel electrophoresis (PFGE) analysis and corroborated by serology. Twelve E. coli strains were isolated from blood, urine, or indwelling catheter samples from five cases of preterm infants within a 3-day period. Patients were admitted to the NICU of the general hospital and, during the outbreak, developed sepsis caused by E. coli. For four of the patients, the average age was 23 days, while one patient was a 3-month-old infant. Prior to sepsis, the infants had received assisted ventilation and hyperalimentation through a central venous catheter. Two profiles were observed by PFGE; profile A was identified as the outbreak's cause and an outcome of cross-infection, while profile B showed genetic differences but serologically it was identified as part of the same serotype. We conclude that E. coli colonised the patients through horizontal transmission. A focal source of the microorganism in this outbreak was not identified, but cross-transmission through handling was the most probable route.
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