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1.
J Med Virol ; 96(7): e29750, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38953413

RESUMO

The Phylum Cressdnaviricota consists of a large number of circular Rep-encoding single-stranded (CRESS)-DNA viruses. Recently, metagenomic analyzes revealed their ubiquitous distribution in a diverse range of eukaryotes. Data relating to CRESS-DNA viruses in humans remains scarce. Our study investigated the presence and genetic diversity of CRESS-DNA viruses in human vaginal secretions. Vaginal swabs were collected from 28 women between 29 and 43 years old attending a fertility clinic in New York City. An exploratory metagenomic analysis was performed and detection of CRESS-DNA viruses was confirmed through analysis of near full-length sequences of the viral isolates. A phylogenetic tree was based on the REP open reading frame sequences of the CRESS-DNA virus genome. Eleven nearly complete CRESS-DNA viral genomes were identified in 16 (57.1%) women. There were no associations between the presence of these viruses and any demographic or clinical parameters. Phylogenetic analysis indicated that one of the sequences belonged to the genus Gemycircularvirus within the Genomoviridae family, while ten sequences represented previously unclassified species of CRESS-DNA viruses. Novel species of CRESS-DNA viruses are present in the vaginal tract of adult women. Although they be transient commensal agents, the potential clinical implications for their presence at this site cannot be dismissed.


Assuntos
Vírus de DNA , Genoma Viral , Metagenômica , Filogenia , Vagina , Humanos , Feminino , Adulto , Vagina/virologia , Genoma Viral/genética , Vírus de DNA/genética , Vírus de DNA/classificação , Vírus de DNA/isolamento & purificação , DNA Viral/genética , Cidade de Nova Iorque , Análise de Sequência de DNA , Variação Genética
2.
Viruses ; 16(6)2024 May 24.
Artigo em Inglês | MEDLINE | ID: mdl-38932124

RESUMO

BACKGROUND: Torquetenovirus (TTV) is a small DNA virus constituting the human virome. High levels of TTV-DNA have been shown to be associated with immunosuppression and inflammatory chronic disorders. AIM: To assess the possible association between the salivary viral load of TTV-DNA in patients hospitalised due to COVID-19 and disease severity. METHODS: Saliva samples collected from 176 patients infected with SARS-CoV-2 were used to investigate the presence of SARS-CoV-2 and TTV-DNA by use of real-time RT-PCR. RESULTS: The majority of patients were male with severe COVID-19. Presence of SARS-CoV-2 was observed in the saliva of 64.77% of patients, showing TTV-DNA in 55.68% of them. Patients with impaired clinical conditions (p < 0.001), which evolved to death (p = 0.003), showed a higher prevalence of TTV-DNA. The median viral load in patients with severe condition was 4.99 log10 copies/mL, in which those who were discharged and those evolving to death had values of 3.96 log10 copies/mL and 6.27 log10 copies/mL, respectively. A statistically significant association was found between the distribution of TTV-DNA viral load in saliva samples and severity of COVID-19 (p = 0.004) and disease outcomes (p < 0.001). CONCLUSIONS: These results indicate that TTV-DNA in saliva could be a useful biomarker of COVID-19 severity and prognosis.


Assuntos
COVID-19 , SARS-CoV-2 , Saliva , Índice de Gravidade de Doença , Torque teno virus , Carga Viral , Eliminação de Partículas Virais , Humanos , Masculino , Saliva/virologia , COVID-19/virologia , Feminino , Pessoa de Meia-Idade , SARS-CoV-2/genética , SARS-CoV-2/isolamento & purificação , Idoso , Torque teno virus/isolamento & purificação , Torque teno virus/genética , Adulto , Hospitalização , DNA Viral/genética , Idoso de 80 Anos ou mais , Infecções por Vírus de DNA/virologia
3.
Artigo em Inglês | MEDLINE | ID: mdl-38747849

RESUMO

This study aimed to provide further insight into the evolutionary dynamics of SARS-CoV-2 by analyzing the case of a 40-year-old man who had previously undergone autologous hematopoietic stem cell transplantation due to a diffuse large B-cell lymphoma. He developed a persistent SARS-CoV-2 infection lasting at least 218 days and did not manifest a humoral immune response to the virus during this follow-up period. Whole-genome sequencing and viral cultures confirmed a persistent infection with a replication-positive virus that had undergone genetic variation for at least 196 days after symptom onset.


Assuntos
COVID-19 , Hospedeiro Imunocomprometido , SARS-CoV-2 , Eliminação de Partículas Virais , Humanos , Adulto , Masculino , COVID-19/imunologia , SARS-CoV-2/imunologia , SARS-CoV-2/genética , Linfoma Difuso de Grandes Células B/virologia , Linfoma Difuso de Grandes Células B/imunologia , Transplante de Células-Tronco Hematopoéticas , Sequenciamento Completo do Genoma
4.
J Med Virol ; 96(2): e29471, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38353496

RESUMO

Human enteroviruses (EV) are the most common cause of aseptic meningitis worldwide. Data on EV viral load in cerebrospinal fluid (CSF) and related epidemiological studies are scarce in Brazil. This study investigated the influence of EV viral load on CSF parameters, as well as identifying the involved species. CSF samples were collected in 2018-2019 from 140 individuals at The Hospital das Clínicas, São Paulo. The EV viral load was determined using real-time quantitative polymerase chain reaction, while EV species were identified by 5'UTR region sequencing. Median viral load was 5.72 log10 copies/mL and did not differ by subjects' age and EV species. Pleocytosis was observed in 94.3% of cases, with the highest white blood cell (WBC) counts in younger individuals. Viral load and WBC count were correlated in children (p = 0.0172). Elevated lactate levels were observed in 60% of cases and correlated with the viral load in preteen-teenagers (p = 0.0120) and adults (p = 0.0184). Most individuals had normal total protein levels (70.7%), with higher in preteen-teenagers and adults (p < 0.0001). By sequencing, 8.2% were identified as EV species A and 91.8% as species B. Age-specific variations in CSF characteristics suggest distinct inflammatory responses in each group.


Assuntos
Infecções por Enterovirus , Enterovirus , Meningite Asséptica , Meningite Viral , Criança , Adulto , Adolescente , Humanos , Lactente , Enterovirus/genética , Meningite Asséptica/líquido cefalorraquidiano , Brasil/epidemiologia , Estudos Retrospectivos , Líquido Cefalorraquidiano
5.
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1559116

RESUMO

ABSTRACT This study aimed to provide further insight into the evolutionary dynamics of SARS-CoV-2 by analyzing the case of a 40-year-old man who had previously undergone autologous hematopoietic stem cell transplantation due to a diffuse large B-cell lymphoma. He developed a persistent SARS-CoV-2 infection lasting at least 218 days and did not manifest a humoral immune response to the virus during this follow-up period. Whole-genome sequencing and viral cultures confirmed a persistent infection with a replication-positive virus that had undergone genetic variation for at least 196 days after symptom onset.

6.
Womens Health Rep (New Rochelle) ; 4(1): 594-602, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38099078

RESUMO

Background: Every year, more than 90,000 U.S. women undergo mastectomy. More than 40% have reconstruction. Following reconstruction, most women experience persistent partial or complete numbness of the reconstructed breasts, and many experience pain. Yet, breast reconstruction procedures focus largely on esthetic outcomes with mixed impact on sensory outcomes and little attention to pain. This study examines whether and how breast sensation is important to women. Materials and Methods: Conventional content analysis of extant qualitative data from a clinical registry (29 women with prior breast surgery for cancer, 2008-2022), a volunteer community sample (qualitative interviews with 6 women with and 5 without breast cancer, 2019), and from a Twitter social media survey (N = 32, 2022). Results: Functions of the breast identified by women with and without cancer include breastfeeding, sexual function, and femininity. Five interrelated themes on the importance of breast sensation emerged among women with breast cancer history: sexual function, experience of partnered sex or relationship with one's sexual partner, breast embodiment, effect of breast pain on sexual function, and importance to psychological wellbeing. Women, advocates, and clinicians described a lack of patient-physician communication in this domain that exacerbates the negative impact of breast sensation loss on health and wellbeing. Conclusions: Breast sensation is important to women following mastectomy, yet a gap exists in patient-physician communication about the impact of mastectomy and reconstruction on breast sensory function. Lessons for physicians, scientists, and skeptics are conveyed about why the basic integrity of women's bodies matters for practice and science.

7.
Rev Alerg Mex ; 70(4): 198, 2023 Sep.
Artigo em Espanhol | MEDLINE | ID: mdl-37933939

RESUMO

Objective: To determine the association between AR and the frequency of hyposmia. Method: Cross-sectional, case-control, non-probabilistic census survey in subjects between 14 and 50 years of age. AR was identified by clinical symptoms and positive skin tests. Olfactory function was assessed with the Sniffin Sticks Screening Test. This research was approved by the Ethics and Research Committees of the ISSSTE Regional Hospital "Dr. Valentín Gómez Farías": ZAPOPAN ISSSTE/CEI/488/2020. Result: A total of 147 patients were included, 62 with AR and 85 controls. The average age was 33 years (35 years in AR and 31 years in controls). As a measure of association, the prevalence ratio was calculated, estimating that those with AR have 2.2 times more risk of having hyposmia than controls. Likewise, between them there was a calculated discrepancy of 12.5509 (expected discrepancy 3.84), and a statistical significance of 0.00039 (p=0.00039). Conclusion: AR represents a chronic systemic inflammatory process that leads to hyposmia. Its correlation has been reported from 23 to 48%.1 Likewise, it is important to consider the role that olfaction plays in recognizing and interacting with our environment, and consequently the impact on the quality of life of those who suffer from it. AR significantly increases the risk for suffering hyposmia.


Objetivo: Determinar la asociación entre la RA y la frecuencia de hiposmia. Método: Estudio transversal, casos y controles de carácter censal no probabilístico en sujetos entre 14 a 50 años. Se identificó RA mediante síntomas clínicos y pruebas cutáneas positivas. La función olfatoria fue evaluada con el Sniffin Sticks Screening Test. Esta investigación fue aprobada por los Comités de Ética e Investigación del Hospital Regional "Dr. Valentín Gómez Farías" del ISSSTE: ZAPOPAN ISSSTE/CEI/488/2020. Resultads: Se incluyeron 147 pacientes, 62 con RA y 85 controles. La edad promedio fue de 33 años (35 años en RA y 31 años en controles). Como medida de asociación se calculó la razón de prevalencia estimando que aquellos con RA tienen 2.2 veces más riesgo de tener hiposmia, que los controles. Asimismo, entre ellos hubo una discrepancia calculada de 12.5509 (discrepancia esperada 3.84), y una significancia de 0.00039 (p=0.00039). Conclusió: La RA representa un proceso inflamatorio sistémico crónico que condiciona a hiposmia. Su correlación se ha informado de 23 al 48%.1 A su vez, es importante considerar el papel que juega el olfato en el reconocimiento e interacción con nuestro entorno, y consecuentemente la afección a la calidad de vida de quien lo padece. La RA incrementa significativamente el riesgo de padecer hiposmia.


Assuntos
Transtornos do Olfato , Humanos , Adulto , Transtornos do Olfato/diagnóstico , Anosmia , Qualidade de Vida , Estudos Transversais , Olfato , Inflamação
8.
Vaccines (Basel) ; 11(11)2023 Nov 20.
Artigo em Inglês | MEDLINE | ID: mdl-38006064

RESUMO

Mucosal vaccination appears to be suitable to protect against SARS-CoV-2 infection. In this study, we tested an intranasal mucosal vaccine candidate for COVID-19 that consisted of a cationic liposome containing a trimeric SARS-CoV-2 spike protein and CpG-ODNs, a Toll-like receptor 9 agonist, as an adjuvant. In vitro and in vivo experiments indicated the absence of toxicity following the intranasal administration of this vaccine formulation. First, we found that subcutaneous or intranasal vaccination protected hACE-2 transgenic mice from infection with the wild-type (Wuhan) SARS-CoV-2 strain, as shown by weight loss and mortality indicators. However, when compared with subcutaneous administration, the intranasal route was more effective in the pulmonary clearance of the virus and induced higher neutralizing antibodies and anti-S IgA titers. In addition, the intranasal vaccination afforded protection against gamma, delta, and omicron virus variants of concern. Furthermore, the intranasal vaccine formulation was superior to intramuscular vaccination with a recombinant, replication-deficient chimpanzee adenovirus vector encoding the SARS-CoV-2 spike glycoprotein (Oxford/AstraZeneca) in terms of virus lung clearance and production of neutralizing antibodies in serum and bronchial alveolar lavage (BAL). Finally, the intranasal liposomal formulation boosted heterologous immunity induced by previous intramuscular vaccination with the Oxford/AstraZeneca vaccine, which was more robust than homologous immunity.

9.
Am J Reprod Immunol ; 90(5): e13788, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37881119

RESUMO

PROBLEM: The association of viruses with infertility remains incompletely evaluated. METHOD OF STUDY: Vaginal secretions from 46 women seeking treatment in the Center for Reproductive Medicine and Infertility at Weill Cornell Medicine were tested for viruses by metagenomic analysis by lab personnel blinded to all clinical data. RESULTS: Torquetenovirus (TTV) was identified in 16 women, alphapapillomavirus in seven women and most were positive for bacteriophages. Twelve of the subjects were fertile and sought to freeze their oocytes for future implantation. These women were all negative for TTV. In contrast, 16 of the 34 women (47.1%) being treated for infertility were TTV-positive (p = .0035). Evaluating the women by cause of infertility, five of nine women (55.6%) whose male partner had inadequate sperm parameters and six of 14 women (42.9%) with defective ovulation were TTV positive (p = .0062 and p = .0171, respectively, vs. the fertile women). Alphapapillomavirus was identified in one (8.3%) fertile woman, five (35.7%) women with ovulation deficiency, and one (11.1%) woman with male factor infertility. These differences were not statistically significant. There were no differences in bacteriophage families or the presence of Lactobacillus phages between fertile or infertile women or between different causes of infertility. There was a negative association between TTV detection and Lactobacillus crispatus dominance in the vaginal microbiota (p = .0184), but no association between TTV detection and the presence of alphapapillomavirus or Candida species. CONCLUSION: Detection of TTV in the vagina might be a biomarker for specific causes of infertility.


Assuntos
Infertilidade Feminina , Infertilidade Masculina , Lactobacillus crispatus , Torque teno virus , Masculino , Humanos , Feminino , Torque teno virus/genética , Sêmen , Vagina
11.
Transplant Proc ; 55(9): 2121-2125, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37758563

RESUMO

A new outbreak of hepatitis of unknown origin raised awareness in the international community. A few reports have attempted to associate new cases with adenovirus infection and the immunologic effects of previous SARS-CoV-2 infections through a superantigen mechanism. Moreover, according to a case series, viral isolates were identified in 7 of 10 cases of pediatric patients with hepatitis of unknown origin and acute liver failure. Adenovirus was detected by respiratory secretion polymerase chain reaction in 2 patients, with neither presenting with SARS-CoV-2 acute infection. Clinical and laboratory descriptions and cross-referencing epidemiologic and pathophysiological data can help identify possible disease etiologies.


Assuntos
COVID-19 , Hepatite , Falência Hepática Aguda , Criança , Humanos , SARS-CoV-2 , COVID-19/complicações , Reação em Cadeia da Polimerase , Falência Hepática Aguda/diagnóstico , Falência Hepática Aguda/etiologia
12.
Curr Issues Mol Biol ; 45(9): 6958-6966, 2023 Aug 22.
Artigo em Inglês | MEDLINE | ID: mdl-37754223

RESUMO

Parvovirus B19 infection is associated with a wide range of clinical manifestations, from asymptomatic to severe neurological disorders. Its major clinical symptoms, fever and rash, are common to multiple viruses, and laboratory tests to detect B19 are frequently not available. Thus, the impact of B19 on public health remains unclear. We report the case of a 38-day old girl admitted to São Paulo Clinical Hospital, Brazil, with an initial diagnosis of bacterial meningitis, seizures, and acute hydrocephalus. Antibiotic therapy was maintained for one week after admission and discontinued after negative laboratory results were obtained. Nine days after symptoms onset, a cerebral spinal fluid (CSF) sample revealed persistent pleocytosis. The complete B19 complete genome was subsequently identified in her CSF by a metagenomic next-generation sequencing approach. This report highlights the possible involvement of B19 in the occurrence of acute neurological manifestations and emphasizes that its possible involvement might be better revealed by the use of metagenomic technology to detect viral agents in clinical situations of unknown or uncertain etiology.

13.
Front Med (Lausanne) ; 10: 1161091, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37547599

RESUMO

Torquetenovirus (TTV) is a commensal virus present in many healthy individuals. Although considered to be non-pathogenic, its presence and titer have been shown to be indicative of altered immune status in individuals with chronic infections or following allogeneic transplantations. We evaluated if TTV was present in amniotic fluid (AF) at the time of in utero surgery to correct a fetal neurological defect, and whether its detection was predictive of adverse post-surgical parameters. AF was collected from 27 women by needle aspiration prior to a uterine incision. TTV titer in the AF was measured by isolation of viral DNA followed by gene amplification and analysis. The TTV genomes were further characterized and sequenced by metagenomics. Pregnancy outcome parameters were subsequently obtained by chart review. Three of the AFs (11.1%) were positive for TTV at 3.36, 4.16, and 4.19 log10 copies/mL. Analysis of their genomes revealed DNA sequences similar to previously identified TTV isolates. Mean gestational age at delivery was >2 weeks earlier (32.5 vs. 34.6 weeks) and the prevalence of respiratory distress was greater (100% vs. 20.8%) in the TTV-positive pregnancies. TTV detection in AF prior to intrauterine surgery may indicate elevated post-surgical risk for earlier delivery and newborn respiratory distress.

14.
PLoS One ; 18(8): e0291027, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37651462

RESUMO

BACKGROUND: Redondovirus (ReDoV) is a DNA virus present in the respiratory tract of many healthy individuals. Since SARS-CoV-2, the virus responsible for COVID-19, also primarily infects the same site, we evaluated whether ReDoV was present at increased frequency in patients with COVID-19 and influenced infection parameters. METHODS: Saliva samples were collected weekly from 59 individuals with COVID-19 and from 132 controls. ReDoV was detected by polymerase chain reaction and the genotypes were identified by metagenomics. Torque Teno Virus (TTV) in these samples were previously reported. RESULTS: ReDoV was detected in saliva more frequently from COVID-19 patients (72.9%) than from controls (50.0%) (p = 0.0015). There were no associations between ReDoV detection and either continuous or intermittent SARS-CoV-2 shedding, the duration of SARS-CoV-2 detection in saliva, patients' sex or if infection was by the B1 or Gamma strain. The two ReDoV strains, Brisavirus and Vientovirus, were present in equivalent frequencies in ReDoV-positive COVID-19 patients and controls. Phylogenetic analysis suggested that the two ReDoV strains in Brazil were similar to strains previously detected on other continents. CONCLUSION: ReDoV expression in saliva is increased in males and females in Brazil with mild COVID-19 but its presence does not appear to influence properties of the SARS-CoV-2 infection.


Assuntos
COVID-19 , SARS-CoV-2 , Feminino , Masculino , Humanos , Brasil/epidemiologia , Filogenia , Saliva
15.
Front Med (Lausanne) ; 10: 1184353, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37425326

RESUMO

Introduction: Torque teno virus (TTV) has been pointed as an endogenous marker of immune function, the objective of this study was to investigate the TTV viral load in plasma and saliva of cirrhotic individuals and correlate it with clinical characteristics. Methods: Blood, saliva, clinical data from records and laboratory tests were collected from 72 cirrhotic patients. Plasma and saliva were submitted to real-time polymerase chain reaction for quantification of TTV viral load. Results: The majority of the patients presented decompensated cirrhosis (59.7%) and 47.2% had alterations in the white blood series. TTV was identified in 28 specimens of plasma (38.8%) and in 67 specimens of saliva (93.0%), with median values of TTV copies/mL of 90.6 in plasma and 245.14 in saliva. All the patients who were positive for TTV in plasma were also positive in saliva, with both fluids having a moderately positive correlation for the presence of TTV. There was no correlation between TTV viral load, either in plasma or in saliva, and any of the variables studied. Conclusion: TTV is more frequently found and in greater amount in the saliva than in the plasma of cirrhotic patients. There was no correlation between TTV viral load and clinical parameters.

16.
Sci Rep ; 13(1): 11252, 2023 07 12.
Artigo em Inglês | MEDLINE | ID: mdl-37438453

RESUMO

An elevated pro-inflammatory cytokine response is associated with severe life-threatening symptoms in individuals with Coronavirus Disease-2019 (COVID). The inflammasome is an intracellular structure responsible for generation of interleukin (IL)-1ß and IL-18. NALP3, a product of the CIAS1 gene, is the rate-limiting component for inflammasome activity. We evaluated if a CIAS1 42 base pair length polymorphism (rs74163773) was associated with severe COVID. DNA from 93 individuals with severe COVID, 38 with mild COVID, and 98 controls were analyzed for this polymorphism. The 12 unit repeat allele is associated with the highest inflammasome activity. Five alleles, corresponding to 6, 7, 9, 12 or 13 repeat units, divided into 12 genotypes were identified. The frequency of the 12 unit repeat allele was 45.3% in those with severe disease as opposed to 30.0% in those with mild disease and 26.0% in controls (p < 0.0001, severe vs. controls). In contrast, the 7 unit repeat allele frequency was 30.1% in controls as opposed to 14.0% and 12.5% in those with severe or mild disease, respectively (p ≤ 0.0017). We conclude that individuals positive for the CIAS1 12 allele may be at elevated risk for development of severe COVID due to an increased level of induced pro-inflammatory cytokine production.


Assuntos
COVID-19 , Inflamassomos , Proteína 3 que Contém Domínio de Pirina da Família NLR , Humanos , COVID-19/genética , Citocinas , Frequência do Gene , Inflamassomos/genética , Polimorfismo Genético , Proteína 3 que Contém Domínio de Pirina da Família NLR/genética
17.
Viruses ; 15(6)2023 05 29.
Artigo em Inglês | MEDLINE | ID: mdl-37376568

RESUMO

Introduction-The dynamics of SARS-CoV-2 shedding and replication in humans remain incompletely understood. Methods-We analyzed SARS-CoV-2 shedding from multiple sites in individuals with an acute COVID-19 infection by weekly sampling for five weeks in 98 immunocompetent and 25 immunosuppressed individuals. Samples and culture supernatants were tested via RT-PCR for SARS-CoV-2 to determine viral clearance rates and in vitro replication. Results-A total of 2447 clinical specimens were evaluated, including 557 nasopharyngeal swabs, 527 saliva samples, 464 urine specimens, 437 anal swabs and 462 blood samples. The SARS-CoV-2 genome sequences at each site were classified as belonging to the B.1.128 (ancestral strain) or Gamma lineage. SARS-CoV-2 detection was highest in nasopharyngeal swabs regardless of the virus strain involved or the immune status of infected individuals. The duration of viral shedding varied between clinical specimens and individual patients. Prolonged shedding of potentially infectious virus varied from 10 days up to 191 days, and primarily occurred in immunosuppressed individuals. Virus was isolated in culture from 18 nasal swab or saliva samples collected 10 or more days after onset of disease. Conclusions-Our findings indicate that persistent SARS-CoV-2 shedding may occur in both competent or immunosuppressed individuals, at multiple clinical sites and in a minority of subjects is capable of in vitro replication.


Assuntos
COVID-19 , Humanos , COVID-19/diagnóstico , SARS-CoV-2/genética , Teste para COVID-19 , Manejo de Espécimes , Eliminação de Partículas Virais , RNA Viral/genética
18.
Front Med (Lausanne) ; 10: 1047310, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36744144

RESUMO

Objective: Torque Teno virus (TTV) is a recently discovered virus with high prevalence worldwide, that has been associated with vascular diseases. The aim of this study is to investigate the prevalence of TTV molecular DNA in the intracranial aneurysm (IA) artery walls. Method: Samples of IA walls were collected after microsurgical clipping from 35 patients with IA (22 ruptured/13 unruptured cases). The samples were submitted to molecular DNA extraction using the EasyMag automatized extractor and performed with Qiagen DNA extraction Minikit 250. The samples underwent PCR examination with primers for ß-globin as internal control using the Nanodrop ® 2000 spectrophotometer. A quantitative (real-time) PCR with TTV-specific primers was performed. Clinical and radiological data of patients included was collected. Results: TTV was detected in 15 (42.85%) cases, being 10 (45.4%) ruptured and 5 (38.4%) unruptured (p = 0.732) lesions. Multiple IAs accounted for 14 (40%) cases. Five cases (17.2%) had TTV+ and multiple aneurysms (p = 0.73). Association between presence of virus and aneurysm rupture was not statistically significant (p = 0.96). Conclusion: This study demonstrated a relatively high prevalence of viral DNA in the walls of IAs. This is the first study to identify the presence of TTV DNA in IA's samples, which was found more often in ruptured lesions. This is an exploratory study, therefore, larger studies are required to clarify the relationships between inflammation, viral infection, IA formation and rupture.

19.
Acta Cytol ; 67(4): 388-394, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36682351

RESUMO

INTRODUCTION: The early identification of precursor lesions followed by appropriate treatment prevents development of cervical cancer and its consequences. OBJECTIVE: The present study evaluated the influence of the COVID-19 pandemic on cervical cancer screening by comparing the quantity of tests to detect cervical cellular changes performed in São Paulo state in 2019, prior to the detection of SARS-CoV-2 in Brazil, to the first (2020) and second (2021) years following its appearance. MATERIALS AND METHODS: Data from Fundação Oncocentro de São Paulo (FOSP), the agency that analyses approximately 220,000 Papanicolaou (Pap) tests annually, were reviewed. RESULTS: A median of 1,835 Pap tests were performed in 55 municipalities in 2019. This was reduced to 815 tests in 2020, a 56% decrease (p = 0.0026). In 2021, the median number was 1,745, a 53% increase over 2020 levels (p = 0.0233). The 26 municipalities with >1,000 tests in 2020 had a median reduction from 4,433 in 2019 to 2,580 in 2020 (p = 0. 0046). The 29 municipalities with <1,000 tests had a median reduction from 951 in 2019 to 554 in 2020 (p < 0.0001). There was a 44% reduction in the number of follow-up cytological evaluations from 2019 to 2020, followed by a 30% increase in the following year. However, the percentage of women with a normal finding or with any abnormality remained unchanged. The findings from a histological evaluation of women in São Paulo city indicated that the percent of cases positive for CIN-1 (p < 0.0410) and CIN-3 (p < 0.0012) increased in 2020 and 2021 as compared to 2019 levels. CONCLUSION: A reduction in testing for cervical cancer in the first year of the COVID-19 pandemic, accompanied by an elevated incidence of precancerous lesions in each of the first 2 years following its initiation, may portend a subsequent increased occurrence of cervical cancer in Brazil.


Assuntos
COVID-19 , Displasia do Colo do Útero , Neoplasias do Colo do Útero , Feminino , Humanos , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/patologia , Brasil/epidemiologia , Esfregaço Vaginal , Detecção Precoce de Câncer , Pandemias , COVID-19/epidemiologia , SARS-CoV-2 , Displasia do Colo do Útero/patologia , Teste de Papanicolaou , Programas de Rastreamento
20.
Oral Dis ; 29(2): 796-802, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34379873

RESUMO

OBJECTIVE: To assess the oral shedding and viremia of Epstein-Barr virus (EBV) in HIV-positive patients and their relationship with oral hairy leukoplakia (OHL). METHODOLOGY: A total of 94 HIV-positive patients were included in the study, in which blood and saliva samples were collected for EBV quantification. Data on gender, age, time of HIV seropositivity, combined antiretroviral therapy (cART), CD4+ T-cell counts, and HIV viral load were collected. OHL diagnosis was based on histopathological examination and EBV in situ hybridization. RESULTS: The EBV load in the 94 HIV-positive patients was higher in saliva than in blood (2.4 and 1.6, respectively), and there was a positive correlation between EBV oral shedding and viremia (p = 0.001). Twenty (21.27%) patients had OHL and also a higher EBV load in saliva (mean log10  = 3.11) compared to those who had no OHL (p = 0.045). Presence of OHL was only associated with age (p = 0.030). CONCLUSION: In HIV-positive patients, the presence of OHL was associated with EBV oral shedding but not with viremia, regardless of the amount of circulating CD4+ T cells.


Assuntos
Infecções por Vírus Epstein-Barr , Infecções por HIV , Humanos , Leucoplasia Pilosa/diagnóstico , Herpesvirus Humano 4 , Infecções por Vírus Epstein-Barr/complicações , Viremia/complicações , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Leucoplasia Oral/complicações
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