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1.
Int J Mol Sci ; 25(9)2024 Apr 29.
Article in English | MEDLINE | ID: mdl-38732048

ABSTRACT

HIV infection results in marked alterations in the gut microbiota (GM), such as the loss of microbial diversity and different taxonomic and metabolic profiles. Despite antiretroviral therapy (ART) partially ablating gastrointestinal alterations, the taxonomic profile after successful new ART has shown wide variations. Our objective was to determine the GM composition and functions in people living with HIV (PLWHIV) under ART in comparison to seronegative controls (SC). Fecal samples from 21 subjects (treated with integrase strand-transfer inhibitors, INSTIs) and 18 SC were included. We employed 16S rRNA amplicon sequencing, coupled with PICRUSt2 and fecal short-chain fatty acid (SCFA) quantification by gas chromatography. The INSTI group showed a decreased α-diversity (p < 0.001) compared to the SC group, at the expense of increased amounts of Pseudomonadota (Proteobacteria), Segatella copri, Lactobacillus, and Gram-negative bacteria. Concurrently, we observed an enrichment in Megasphaera and Butyricicoccus, both SCFA-producing bacteria, and significant elevations in fecal butyrate in this group (p < 0.001). Interestingly, gut dysbiosis in PLWHIV was characterized by a proinflammatory environment orchestrated by Pseudomonadota and elevated levels of butyrate associated with bacterial metabolic pathways, as well as the evident presence of butyrogenic bacteria. The role of this unique GM in PLWHIV should be evaluated, as well as the use of butyrate-based supplements and ART regimens that contain succinate, such as tenofovir disoproxil succinate. This mixed profile is described for the first time in PLWHIV from Mexico.


Subject(s)
Feces , Gastrointestinal Microbiome , HIV Infections , RNA, Ribosomal, 16S , Humans , HIV Infections/microbiology , HIV Infections/drug therapy , Mexico , Female , Male , Adult , Middle Aged , Feces/microbiology , RNA, Ribosomal, 16S/genetics , Dysbiosis/microbiology , Fatty Acids, Volatile/metabolism , Fatty Acids, Volatile/analysis , Bacteria/classification , Bacteria/genetics , Bacteria/isolation & purification , Butyrates/metabolism
3.
Córdoba; s.n; 2015. 98 p. ilus, tab, graf.
Thesis in Spanish | LILACS | ID: biblio-871368

ABSTRACT

El siguiente es un análisis descriptivo de la UNIDAD CARDIOVASCULAR DEL HOSPITAL DE NIÑOS DE LA SANTISIMA TRINIDAD CORDOBA-2013 (UCV-HNST) ,en donde se intenta mostrar con estadísticas la necesidad de aumentar el número de cirugías cardiovasculares en córdoba, tanto a nivel público como privado para poder disminuir una de las cinco primeras causas de mortalidad infantil en la actualidad , que como intentaremos demostrar es altamente evitable ,si estos niños son tratados en tiempo y forma por profesionales capacitados. Para ello analizamos la situación de las cirugías cardiovasculares en córdoba con respecto al país y luego observamos específicamente el funcionamiento de la UCVHNST y se propone una reestructuración del mismo para poder aumentar el número de cirugías y hemodinamias de dicho nosocomio, con el objetivo de disminuir la actual lista de espera de niños con cardiopatías congénitas quirúrgicas


SUMMARY: The following descriptive analysis of UNIT CARDIOVASCULAR HOSPITAL FOR CHILDREN OF THE HOLY TRINITY CORDOBA-2013 (UCV-HNST), we intend to show statistics the need to increase the number of cardiovascular surgeries in Cordoba, both public and private to to reduce one of the five leading causes of infant mortality today, and try to show that it is highly preventable if these children are treated in a timely manner by trained professionals. We analyzed the situation of cardiovascular surgeries in Cordoba over the country and then specifically at the functioning of the UCV-HNST and restructuring of it is proposed to increase the number of surgeries and hemodynamics of the hospital, with the aim of reduce the current waiting list of children with congenital heart surgery


Subject(s)
Humans , Male , Female , Child , Cardiovascular Surgical Procedures , Child , Heart Defects, Congenital , Hospitals, Pediatric/organization & administration , Cardiology Service, Hospital/organization & administration , Thoracic Surgery , Argentina
4.
Rev. Fac. Med. (Caracas) ; 17(1): 25-30, ene.-jun. 1994. ilus
Article in Spanish | LILACS | ID: lil-142365

ABSTRACT

En este estudio se presentan resultados obtenidos sobre la identificación, aislamiento y utilización de un antígeno T. cruzi específico de peso molecular 24/25 kDA ("Tc-24-25) de utilidad para el serodiagnóstico de la enfermedad de Chagas


Subject(s)
Humans , Male , Female , Antibodies, Monoclonal/isolation & purification , Chagas Disease/diagnosis , Serologic Tests/methods , Trypanosoma cruzi
5.
Rev. Fac. Med. (Caracas) ; 17(1): 92-9, ene.-jun. 1994. ilus
Article in Spanish | LILACS | ID: lil-142374

ABSTRACT

Los estudios realizados desde el punto de vista molecular, celular y organismico revelan que el Trypanosoma cruzi en su proliferación depende de la producción de esteroles endógenos. Cualquier intervención farmacológica que modifique esta ruta biosintética previene la proliferación del parásito, in vivo e in vitro. Además cuando se combinan estos agentes, ellos pueden tener acción sinergética sobre la proliferación del parásito, lo que permite pensar, que podría ser útil en el tratamiento de la Enfermedad de Chagas, sin efectos secundarios. Las combinaciones hasta ahora conocidas son el ketoconazol (Janssen) Lamisil (Sandoz) y el ketoconazol-Mevacor (Merk Sharp & Dohme). Otras combinaciones han sido evaluadas por nuestro grupo y la OMS, como el itraconazol (Janssen) que posee mayor actividad y menor toxicidad que el anterior, usándolo en combinación con la sinvastatina (Merk Sharp & Dohne) y la fluvastatina (Sandoz). Finalmente, las terapéuticas propuestas pueden ser útiles en el tratamiento de otras enfermedades parasitarias y algunas micosis sistémicas


Subject(s)
Humans , Male , Female , Anticholesteremic Agents , Chagas Disease/therapy , Drug Synergism , In Vitro Techniques , Trypanosoma cruzi
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