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1.
Open Forum Infect Dis ; 11(6): ofae022, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38887485

RESUMEN

Clinical and epidemiological features of 7 human immunodeficiency virus-negative Peruvian patients coinfected with human T-lymphotropic virus type 1 (HTLV-1) and cryptococcosis (2006-2017) were studied. Most cases had meningeal involvement, were male, and originated from Peru's jungle. Patients with cryptococcosis should be tested for HTLV-1 in endemic areas of this retrovirus.

2.
Ann Clin Microbiol Antimicrob ; 22(1): 102, 2023 Nov 20.
Artículo en Inglés | MEDLINE | ID: mdl-37986091

RESUMEN

OBJECTIVE: The current study evaluated the diagnostic performance of serum (1,3)-beta-D Glucan (BDG) in differentiating PJP from P. jirovecii-colonization in HIV-uninfected patients with P. jirovecii PCR-positive results. METHODS: This was a single-center retrospective study between 2019 and 2021. The diagnosis of PJP was based on the following criteria: detection of P. jirovecii in sputum or BAL specimen by qPCR or microscopy; Meet at least two of the three criteria: (1) have respiratory symptoms of cough and/or dyspnea, hypoxia; (2) typical radiological picture findings; (3) receiving a complete PJP treatment. After exclusion, the participants were divided into derivation and validation cohorts. The derivation cohort defined the cut-off value of serum BDG. Then, it was verified using the validation cohort. RESULTS: Two hundred and thirteen HIV-uninfected patients were enrolled, with 159 PJP and 54 P. jirovecii-colonized patients. BDG had outstanding specificity, LR, and PPV for PJP in both the derivation (90.00%, 8.900, and 96.43%) and the validation (91.67%, 9.176, and 96.30%) cohorts at ≥ 117.7 pg/mL. However, it had lower sensitivity and NPV in the derivation cohort (89.01% and 72.97%), which was even lower in the validation cohort (76.47% and 57.89%). Of note, BDG ≥ 117.7 pg/mL has insufficient diagnostic efficacy for PJP in patients with lung cancer, interstitial lung disease (ILD) and nephrotic syndrome. And although lymphocytes, B cells, and CD4+ T cells in PJP patients were significantly lower than those in P. jirovecii-colonized patients, the number and proportion of peripheral blood lymphocytes did not affect the diagnostic efficacy of serum BDG. CONCLUSIONS: Serum BDG ≥ 117.7 pg/mL could effectively distinguish P. jirovecii-colonization from infection in qPCR-positive HIV-uninfected patients with infectious diseases, solid tumors (excluding lung cancer), autoimmune or inflammatory disorders, and hematological malignancies. Of note, for patients with lung cancer, ILD, and nephrotic diseases, PJP should be cautiously excluded at BDG < 117.7 pg/mL.


Asunto(s)
Infecciones por VIH , Enfermedades Pulmonares Intersticiales , Neoplasias Pulmonares , Pneumocystis carinii , Neumonía por Pneumocystis , beta-Glucanos , Humanos , Neumonía por Pneumocystis/diagnóstico , Pneumocystis carinii/genética , Glucanos , Estudios Retrospectivos , Infecciones por VIH/complicaciones
3.
Infect Agent Cancer ; 18(1): 38, 2023 Jun 14.
Artículo en Inglés | MEDLINE | ID: mdl-37316814

RESUMEN

We previously found that age, sex and malaria were associated with KSHV in individuals from Uganda. In this study, we have evaluated these same factors in relation to EBV in the same specimens. Overall, 74% (oral fluids) and 46% (PBMCs) had detectable EBV. This was significantly higher than observed for KSHV (24% oral fluids and 11% PBMCs). Individuals with EBV in PBMCs were more likely to have KSHV in PBMCs (P = 0.011). The peak age for detection of EBV in oral fluids was 3-5 years while that of KSHV was 6-12 years. In PBMCs, there was a bimodal peak age for detection of EBV (at 3-5 years and 66 + years) while for KSHV there was a single peak at 3-5 years. Individuals with malaria had higher levels of EBV in PBMCs compared to malaria-negative individuals (P = 0.002). In summary, our results show that younger age and malaria are associated with higher levels of EBV and KSHV in PBMCs suggesting malaria impacts immunity to both gamma-herpesviruses.

4.
J Hosp Infect ; 132: 20-27, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-36521583

RESUMEN

BACKGROUND: Pneumocystis jirovecii pneumonia (PJP) transmission is poorly defined. Previous studies have sampled air of rooms occupied by HIV-infected patients with PJP, while natural and direct exhalations of HIV-uninfected subjects remain under-investigated. Here, clinical facemasks were used to examine and quantify potential P. jirovecii exhalations from HIV-uninfected patients with suspected PJP and to determine whether pathogen exhalation was definable clinically or radiologically. METHODS: Forty-five patients in Leicester (England), highly suspected of having PJP based on European Conference on Infections in Leukaemia (ECIL-5) guidelines, each wore one facemask carrying a gelatine/PVA sampling matrix for 1 h while respiring normally. Mask contamination with P. jirovecii was assessed using a modified quantitative polymerase chain reaction targeting mitochondrial large subunit (MtLSU). Radiological findings on chest X-ray (CXR) and computed tomography (CT) were graded and analysed for correlation with P. jirovecii signals alongside relevant clinical and laboratory findings. RESULTS: P. jirovecii was detected in seven of 20 patients diagnosed with PJP and three of 19 patients with suspected but undiagnosed PJP. The median captured signal was 8.59 × 104 MtLSU copies/mask (interquartile range (IQR) = 3.01 × 105-1.81 × 104). Blood ß-D-glucan test results correlated with the mask detection data (r = 0.65; P<0.0001) but other clinical indices and radiological features did not. Five of the 10 P. jirovecii-exhalers exhibited normal CXR with a median exhalation burden 1.28 × 105 copies/mask (IQR = 1.51 × 105-2.27 × 104). Two P. jirovecii-exhalers (7.64 × 104 copies/mask) were asymptomatic. CONCLUSION: P. jirovecii was exhaled sufficiently during normal respiration to be detectable in facemasks worn by HIV-uninfected patients. Neither clinical nor radiological features correlated with P. jirovecii exhalation.


Asunto(s)
Infecciones por VIH , Pneumocystis carinii , Neumonía por Pneumocystis , Humanos , Pneumocystis carinii/genética , Espiración , Máscaras , Neumonía por Pneumocystis/diagnóstico , Infecciones por VIH/complicaciones , Huésped Inmunocomprometido
5.
Mycoses ; 66(1): 59-68, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36111370

RESUMEN

BACKGROUND: Cryptococcal meningitis (CM) is increasingly recognised in human immunodeficiency virus (HIV)-uninfected patients with high mortality. The efficacy and safety profiles of induction therapy with high-dose fluconazole plus flucytosine remain unclear. METHODS: HIV-uninfected CM patients who received high-dose fluconazole (800 mg/d) for initial therapy in Huashan Hospital were included in this retrospective study from January 2013 to December 2018. Efficacy and safety of initial therapy, clinical outcomes and risk factors were evaluated. RESULTS: Twenty-seven (71.1%) patients who received high-dose fluconazole with flucytosine combination therapy and 11 (28.9%) having fluconazole alone for induction therapy were included. With a median duration of 42 days (IQR, 28-86), the successful response rate of initial therapy was 76.3% (29/38), while adverse drug reactions occurred in 14 patients (36.8%). The rate of persistently positive cerebrospinal fluid (CSF) culture results was 30.6% at 2 weeks, which was significantly associated with CSF CrAg titre >1:1280 (OR 9.56; 95% CI 1.40-103.65; p = .010) and CSF culture of Cryptococcus >3.9 log10 CFU/ml (OR 19.20; 95% CI 1.60-920.54; p = .011), and decreased to 8.6% at 4 weeks. One-year mortality was 15.8% (6/38), and low serum albumin (35 g/L) was found as an independent risk factor for 1-year mortality (HR 6.31; 95% CI 1.150-34.632; p = .034). CONCLUSIONS: Induction therapy with high-dose fluconazole (800 mg/d), combined with flucytosine, effectively treated HIV-uninfected CM and was well tolerated. Long-term fluconazole treatment with continued monitoring is beneficial for patients with persistent infection.


Asunto(s)
Infecciones por VIH , Meningitis Criptocócica , Humanos , Fluconazol/efectos adversos , Flucitosina/efectos adversos , Meningitis Criptocócica/complicaciones , Quimioterapia de Inducción , Estudios Retrospectivos , Antifúngicos/efectos adversos , Quimioterapia Combinada , Infecciones por VIH/complicaciones , Infecciones por VIH/tratamiento farmacológico , VIH
6.
Expert Rev Respir Med ; 16(11-12): 1167-1190, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36440485

RESUMEN

INTRODUCTION: Pneumocystis jirovecii is an opportunistic, human-specific fungus that causes Pneumocystis pneumonia (PCP). PCP symptoms are nonspecific. A patient with P. jirovecii and another lung infection faces a diagnostic challenge. It may be difficult to determine which of these agents is responsible for the clinical symptoms, preventing effective treatment. Diagnostic and treatment efforts have been made more difficult by the rising frequency with which coronavirus 2019 (COVID-19) and PCP co-occur. AREAS COVERED: Herein, we provide a comprehensive review of clinical and pharmacological recommendations along with a literature review of PCP in immunocompromised patients focusing on HIV-uninfected patients. EXPERT OPINION: PCP may be masked by identifying co-existing pathogens that are not necessarily responsible for the observed infection. Patients with severe form COVID-19 should be examined for underlying immunodeficiency, and co-infections must be considered as co-infection with P. jirovecii may worsen COVID-19's severity and fatality. PCP should be investigated in patients with PCP risk factors who come with pneumonia and suggestive radiographic symptoms but have not previously received PCP prophylaxis. PCP prophylaxis should be explored in individuals with various conditions that impair the immune system, depending on their PCP risk.


Asunto(s)
COVID-19 , Infecciones por VIH , Pneumocystis carinii , Neumonía por Pneumocystis , Humanos , Neumonía por Pneumocystis/complicaciones , Neumonía por Pneumocystis/diagnóstico , Neumonía por Pneumocystis/tratamiento farmacológico , COVID-19/complicaciones , Huésped Inmunocomprometido , Infecciones por VIH/complicaciones
7.
Open Forum Infect Dis ; 9(10): ofac498, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-36285177

RESUMEN

Background: Mycobacterium genavense infection is rare and can occur in immunocompromised patients without human immunodeficiency virus (HIV). Methods: We describe 2 cases of M genavense infection in solid organ transplant (SOT) recipients, and we performed a literature review of immunocompromised patients without HIV. Results: Fifty-two cases are reported. Predisposing factors were receipt of SOT (40.4%) and autoimmune disease (36.5%). Infection was disseminated in 86.5% of cases. Organs involved were lymph nodes (72.3%), gastrointestinal tract (56.5%), lung (35.5%), and bone marrow (28.8%). Most patients were treated with at least 3 antimycobacterial agents (98%), with a clinical cure achieved in 54.9%. In multivariate analysis, lack for cure was associated with age of the time infection (odds ratio [OR], 15.81 [95% confidence interval {CI}, 2.92-152.93]; P = .011) and positive bone marrow culture (OR, 1.05 [95% CI, 1.01-1.12]; P = .042). Conclusions: Mycobacterium genavense infection is a rare and generally disseminated disease with a poor prognosis. Optimal treatment regimen and its duration remain to be defined.

8.
Front Immunol ; 13: 993495, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36032125

RESUMEN

The cerebrospinal fluid (CSF) immune responses in HIV-uninfected cryptococcal meningitis (CM) have not been well studied. In this study, we aimed to explore the phenotype of CSF immune response during the course of disease and to examine relationships between phenotypes and disease severity. We profiled the CSF immune response in 128 HIV-uninfected CM and 30 pulmonary cryptococcosis patients using a 27-plex Luminex cytokine kit. Principal component analyses (PCA) and logistic regression model were performed. Concentrations of 23 out of 27 cytokines and chemokines in baseline CSF were significantly elevated in CM patients compared with pulmonary cryptococcosis cases. In CM patients with Cryptococcus neoformans infection, IL-1ra, IL-9, and VEGF were significantly elevated in immunocompetent cases. Cytokine levels usually reached peaks within the first 2 weeks of antifungal treatment and gradually decreased over time. PCA demonstrated a co-correlated CSF cytokine and chemokine response consisting of Th1, Th2, and Th17 type cytokines. Prognostic analysis showed that higher scores for the PCs loading pro-inflammatory cytokines, IFN-γ, TNF-α, and IL-12; and anti-inflammatory cytokine, IL-4; and chemokines, Eotaxin, FGF-basis, and PDGF-bb; as well as lower scores for the PCs loading RANTES were associated with disease severity, as defined by a Glasgow Coma Scale of <15 or death. In conclusion, combined inflammatory responses in CSF involving both pro- and anti-inflammatory cytokines and chemokines are upregulated in HIV-uninfected CM, and associated with disease severity.


Asunto(s)
Criptococosis , Infecciones por VIH , Meningitis Criptocócica , Quimiocinas , Citocinas , Humanos , Pronóstico
9.
Microbiol Spectr ; 10(5): e0117822, 2022 10 26.
Artículo en Inglés | MEDLINE | ID: mdl-35969076

RESUMEN

The immune control of tuberculosis (TB) infection could be influenced by pregnancy. To elucidate this, we longitudinally characterized Mycobacterium tuberculosis (Mtb)-specific and nonspecific immune responses in women during pregnancy and postpartum. HIV-uninfected women without past or current active TB, and with blood samples available from the 1st/2nd trimester, 3rd trimester, and 9 months postpartum, were identified at Ethiopian antenatal care clinics. Twenty-two TB+ women and 10 TB- women, defined according to Mtb-stimulated interferon-γ levels (≥0.35 and <0.20 IU/mL, respectively, in the Quantiferon-TB Gold-Plus assay), were included in the study. Longitudinal dynamics of six cytokines (IL-1ra, IL-2, IP-10, MCP-2, MCP-3, and TGF-ß1) were analyzed in supernatants from Mtb-stimulated and unstimulated whole blood. In TB+ women, Mtb-specific expression of IL-2 and IP-10 was higher at 3rd compared to 1st/2nd trimester (median 139 pg/mL versus 62 pg/mL, P = 0.006; 4,999 pg/mL versus 2,310 pg/mL, P = 0.031, respectively), whereas level of Mtb-triggered TGF-ß1 was lower at 3rd compared to 1st/2nd trimester (-6.8 ng/mL versus 2.3 ng/mL, P = 0.020). Unstimulated IL-2, IP-10, and MCP-2 levels were increased postpartum, compared with those noted during pregnancy, in TB+ women. Additionally, postpartum levels of proinflammatory cytokines in unstimulated blood were higher in TB+ women, than in TB- women. None of the women developed active TB during follow-up. Taken together, dynamic changes of Mtb-specific cytokine expression revealed during the 3rd trimester in TB+ women indicate increased Mtb-antigen stimulation at later stages of pregnancy. This could reflect elevated bacterial activity, albeit without transition to active TB, during pregnancy. IMPORTANCE Tuberculosis (TB) is globally one of the most common causes of death, and a quarter of the world's population is estimated to have TB infection. The risk of active TB is increased in connection to pregnancy, a phenomenon that could be due to physiological immune changes. Here, we studied the effect of pregnancy on immune responses triggered in HIV-uninfected women with TB infection, by analyzing blood samples obtained longitudinally during pregnancy and after childbirth. We found that the dynamics of Mtb-specific and nonspecific immune responses changed during pregnancy, especially in later stages of pregnancy, although none of the women followed in this study developed active TB. This suggests that incipient TB, with elevated bacterial activity, occurs during pregnancy, but progression of infection appears to be counteracted by Mtb-specific immune responses. Thus, this study sheds light on immune control of TB during pregnancy, which could be of importance for future intervention strategies.


Asunto(s)
Infecciones por VIH , Tuberculosis Latente , Mycobacterium tuberculosis , Tuberculosis Ganglionar , Embarazo , Femenino , Humanos , Proteína Antagonista del Receptor de Interleucina 1 , Factor de Crecimiento Transformador beta1 , Interferón gamma , Quimiocina CXCL10/metabolismo , Interleucina-2 , Tuberculosis Latente/diagnóstico , Citocinas , Inmunidad , Antígenos Bacterianos
10.
Int J Gen Med ; 15: 3055-3067, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35313548

RESUMEN

Purpose: Pneumocystis jirovecii pneumonia (PCP) is a major cause of death in immunocompromised patients. Many risk factors for poor prognosis have been reported, but few studies have created predictive models with these variables to calculate the death rate accurately. This study created nomogram models for the precise prediction of mortality risk in human immunodeficiency virus (HIV) uninfected and HIV-infected patients with PCP. Patients and Methods: A retrospective study was performed over a 10-year period to evaluate the clinical characteristics and outcomes of PCP in HIV-uninfected and HIV-infected adults treated in Beijing, China from 2010 to 2019. Univariate and multivariate logistic regression analyses were used to identify mortality risk factors to create the nomograms. Nomogram models were evaluated by using a bootstrapped concordance index, calibration plots and receiver operating characteristic (ROC) curves. Results: A total of 167 HIV-uninfected and 193 HIV-infected PCP patients were included in the study. Pneumothorax, duration of fever after admission, CD4+ T cells ≤100/µL and trimethoprim-sulfamethoxazole (TMP-SMX) combined with caspofungin (CAS) treatment were independent risk factors for death in HIV-uninfected PCP patients. We derived a well calibrated nomogram for mortality by using these variables. The area under the curve was 0.865 (95% confidence interval 0.799-0.931). Independent risk factors for death in HIV-infected PCP patients were pneumothorax, platelet (PLT) ≤80×109/L, haemoglobin (HGB) ≤90 g/L, albumin (ALB), cytomegalovirus (CMV) coinfection and TMP-SMX combined with CAS treatment. The nomogram showed good discrimination, with a C-index of 0.904 and excellent calibration. Conclusion: The nomograms which were derived may be useful tools for the precise prediction of mortality in HIV-uninfected and HIV-infected patients, but require validation in clinical practice.

11.
BMC Infect Dis ; 21(1): 865, 2021 Aug 23.
Artículo en Inglés | MEDLINE | ID: mdl-34425764

RESUMEN

BACKGROUND: In recent years, talaromycosis is reportedly on the rise in human immunodeficiency virus (HIV)-uninfected patients. However, the misdiagnosis and mistreatment of talaromycosis is more likely in HIV-uninfected patients than in HIV-infected patients because talaromycosis can be easily mistaken for tuberculosis or any other opportunistic infection. Therefore, we used metagenomic next-generation sequencing (mNGS), a novel gene detection method, for the diagnosis of talaromycosis in HIV-uninfected patients. CASE PRESENTATION: We report five cases diagnosed as talaromycosis by mNGS in HIV-uninfected patients, which were further confirmed by tissue culture. There were 3 male and 2 female patients. Two patients had a history of rat contact. The misdiagnosis duration ranged from 88 to 245 days. While the results of tissue culture changed from repeated negative to positive, the mNGS result for Talaromyces marneffei was positive earlier in 4 patients. The reads of Talaromyces marneffei in mNGS ranged from 5 to 414. After antifungal therapy, one of the outcomes was death due to the longest duration of misdiagnosis, and the other outcomes were clinical improvement. CONCLUSIONS: mNGS is perhaps a rapid and effective diagnosis approach for the early confirmation of talaromycosis. Antifungal therapy is recommended once Talaromyces marneffei was revealed by mNGS. mNGS might reduce misdiagnosis duration and improve prognosis. Through these findings, we hope to provide some reference for talaromycosis in HIV-uninfected patients diagnosed early with the help of mNGS.


Asunto(s)
Infecciones por VIH , Animales , Diagnóstico Precoz , Femenino , Infecciones por VIH/complicaciones , Infecciones por VIH/diagnóstico , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Masculino , Micosis , Ratas , Talaromyces
12.
South Afr J HIV Med ; 21(1): 970, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32670624

RESUMEN

BACKGROUND: Improving health literacy amongst human immunodeficiency virus (HIV)-positive mothers could strengthen child and adolescent HIV prevention. The Amagugu intervention included health literacy materials to strengthen maternal communication and has demonstrated success in low-resource HIV-endemic settings. OBJECTIVES: Our aims were to (1) evaluate whether Amagugu materials improved health literacy leading to changes in parental behaviour towards communicating on topics such as HIV, health behaviours and sex education, and (2) explore what additional information and materials mothers would find helpful. METHOD: The Amagugu evaluation included 281 HIV-positive mothers and their HIV-uninfected children (6-10 years). Process evaluation data from exit interviews were analysed using content analysis and logistic regression techniques. RESULTS: Of 281 mothers, 276 (98.0%) requested more educational storybooks: 99 (35.2%) on moral development/future aspirations, 92 (32.7%) on general health, safety and health promotion, and 67 (23.8%) on HIV and disease management. Compared to baseline, mothers reported that the materials increased discussion on the risks of bullying from friends (150; 53.4%), teacher problems (142; 50.5%), physical abuse (147; 52.3%) and sexual abuse (126; 44.8%). Most mothers used the 'HIV Body Map' for health (274; 97.5%) and sex education (267; 95.0%). The use of a low-cost doll was reported to enhance mother-child communication by increasing mother-child play (264; 94.3%) and maternal attentiveness to the child's feelings (262; 93.6%). CONCLUSION: Parent-led health education in the home seems feasible, acceptable and effective and should be capitalised on in HIV prevention strategies. Further testing in controlled studies is recommended.

13.
Future Microbiol ; 15: 613-621, 2020 05.
Artículo en Inglés | MEDLINE | ID: mdl-32490698

RESUMEN

Aim: The aim of our study was to describe the characteristics of postinfectious inflammatory response syndrome (PIIRS) in HIV-uninfected and nontransplant men after cryptococcal meningitis (CM). Patients & methods: A case-control study was designed to compare HIV-uninfected and nontransplant male CM patients with and without PIIRS. Results: CM-PIIRS patients had increased rates of hearing loss, V-P shunt placement, amphotericin B treatment, higher cerebrospinal fluid pressures and Cryptococcus counts in the first CM episode. CM-PIIRS episode was characterized by higher frequencies of headache and fever, higher C-reactive protein, erythrocyte sedimentation rate, cerebrospinal fluid white blood cell (WBC) counts and modified Rankin Score. Brain MRI scans revealed the high signal lesions on axial flair imaging. Receipt of corticosteroid therapy was associated with lower rates of fever and better modified Rankin Score scores at 1 month after treatment. Conclusion: CM-PIIRS episode differs to the initial presentation, may help to identify which patients are at risk to develop PIIRS. Steroids therapy could be beneficial.


Asunto(s)
Meningitis Criptocócica/complicaciones , Síndrome de Respuesta Inflamatoria Sistémica/inmunología , Adolescente , Adulto , Anciano , Estudios de Casos y Controles , Femenino , Humanos , Masculino , Meningitis Criptocócica/inmunología , Persona de Mediana Edad , Estudios Retrospectivos , Síndrome de Respuesta Inflamatoria Sistémica/etiología , Adulto Joven
14.
Clin Infect Dis ; 70(2): 319-322, 2020 01 02.
Artículo en Inglés | MEDLINE | ID: mdl-31125395

RESUMEN

Studies in human immunodeficiency virus (HIV)-infected individuals suggest excess weight gain with integrase inhibitor-based antiretroviral therapy. The HIV Prevention Trials Network Study 077 evaluated changes in weight and fasting metabolic parameters in HIV-uninfected individuals randomized to cabotegravir or a placebo. No differences between arms were found for change in weight or fasting metabolic parameters overall or for subgroups.


Asunto(s)
Fármacos Anti-VIH/uso terapéutico , Infecciones por VIH , Piridonas , Aumento de Peso , VIH , Infecciones por VIH/tratamiento farmacológico , Humanos
15.
BMC Public Health ; 19(1): 1336, 2019 Oct 22.
Artículo en Inglés | MEDLINE | ID: mdl-31640612

RESUMEN

BACKGROUND: Perceived risk of HIV plays an important role in the adoption of protective behaviours and HIV testing. However, few studies have used multiple-item measures to assess this construct. The Perceived Risk of HIV Scale (PRHS) is an 8-item measure that assesses how people think and feel about their risk of HIV infection. This cross-sectional study aimed to assess the psychometric properties (reliability and validity) of the European Portuguese version of the PRHS, including the ability of this scale to discriminate between individuals from the general population and HIV-uninfected partners from sero-different couples on their perceived risk of HIV infection (known-groups validity). METHODS: This study included 917 individuals from the general population (sample 1) to assess the psychometric properties of the PRHS. To assess the known-groups validity, the sample comprised 445 participants from the general population who were in an intimate relationship (sub-set of sample 1) and 42 HIV-uninfected partners from sero-different couples (sample 2). All participants filled out a set of questionnaires, which included a self-reported questionnaire on sociodemographic information, sexual behaviours, HIV testing and the PRHS. Sample 1 also completed the HIV Knowledge Questionnaire - 18-item version. RESULTS: The original unidimensional structure was reproduced both in exploratory and confirmatory factor analyses, and the PRHS demonstrated good reliability (α = .78; composite reliability = .82). The differential item functioning analyses indicated that the items of the PRHS, in general, did not function differently for men and women or according to HIV testing. Significant associations with sexual risk behaviours and HIV testing provided evidence for criterion validity. The known-groups validity was supported. CONCLUSIONS: The PRHS is a suitable scale in the evaluation of the perceived risk of HIV, and its psychometric characteristics validate its use in the Portuguese population. Furthermore, the present study suggests that interventions improving individuals' HIV risk perceptions may be important since they were associated with different sexual behaviours and the likelihood of HIV testing.


Asunto(s)
Infecciones por VIH/psicología , Conocimientos, Actitudes y Práctica en Salud , Parejas Sexuales/psicología , Encuestas y Cuestionarios , Adolescente , Adulto , Anciano , Estudios Transversales , Femenino , Seronegatividad para VIH , Seropositividad para VIH , Humanos , Masculino , Persona de Mediana Edad , Portugal , Psicometría , Reproducibilidad de los Resultados , Medición de Riesgo , Traducciones , Adulto Joven
16.
J Clin Hypertens (Greenwich) ; 21(8): 1230-1241, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-31278845

RESUMEN

We sought to describe changes in blood pressure and estimate the effect of HIV on blood pressure (BP) over 4 years of observation in a cohort of 155 HIV-infected adults (≥40 years) on antiretroviral therapy (ART) and 154 sex- and age-quartile-matched, population-based, HIV-uninfected controls for four years in rural Uganda, we compared changes in blood pressure (BP) by HIV serostatus and tested whether body mass index and inflammation (high-sensitivity C-reactive protein and interleukin-6) and immune activation (sCD14 and sCD163) mediated the effects of HIV on BP using hierarchical multivariate and two-stage parametric regression models. Overall HIV-uninfected participants had higher mean BP than HIV-infected counterparts (differences in trend P < 0.0001 for diastolic BP and P = 0.164 for systolic BP). After initial declines in BP in both groups between years 1 and 2, BP moderately increased in both groups through year 4, with greater change over time observed in the HIV-uninfected group. Body mass index mediated 72% (95%CI 57, 97) of the association between HIV and systolic BP. We found a minimal mediating effect of sCD14 on the relationship between HIV and SBP (9%, 95% CI 5%, 21%), but found no association between other HIV-related biomarkers. Over four years of observation, HIV-infected people in rural Uganda have lower BP than HIV-uninfected counterparts despite having higher levels of inflammation. BMI, rather than measures of HIV-associated inflammation, explained a majority of the difference in BP observed.


Asunto(s)
Presión Sanguínea/fisiología , Infecciones por VIH/complicaciones , Infecciones por VIH/fisiopatología , Inflamación/metabolismo , Adulto , Antirretrovirales/efectos adversos , Antirretrovirales/uso terapéutico , Biomarcadores/sangre , Presión Sanguínea/efectos de los fármacos , Determinación de la Presión Sanguínea/métodos , Índice de Masa Corporal , Proteína C-Reactiva/análisis , Estudios de Casos y Controles , Estudios de Cohortes , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , VIH-1/aislamiento & purificación , Humanos , Interleucina-6/sangre , Masculino , Persona de Mediana Edad , Población Rural/estadística & datos numéricos , Uganda/epidemiología
17.
South Afr J HIV Med ; 20(1): 936, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31205778

RESUMEN

BACKGROUND: The relationship between HIV and tonsil malignancy has not been fully investigated and established. Both of these diseases prominently feature in the Otorhinolaryngology clinics. OBJECTIVE: There is minimal data available on the histopathology of tonsillectomy specimens in the HIV-infected population. This retrospective review compared tonsil histopathology between HIV-infected and HIV-uninfected patients. METHODS: Of the 319 adult patients undergoing tonsillectomy (01 July 2005 to 30 June 2015), HIV results were available for 160. The histological findings were compared in the HIV-infected and HIV-uninfected subgroups. The effects of age, HIV status and CD4 count on the risk of malignancy were determined. RESULTS: There were 86 patients who were HIV-infected and 74 were uninfected. Reactive lymphoid hyperplasia was the most common diagnosis in both groups (77%). Malignancies were diagnosed in eight HIV-infected and six HIV-uninfected patients, an insignificant difference. CONCLUSION: The majority of patients undergoing tonsillectomy had benign conditions. HIV status does not appear to be a specific risk factor for tonsil malignancies, but advanced age may be.

18.
Int J Womens Health ; 11: 229-239, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31015770

RESUMEN

PURPOSE: This pilot study explores the barriers to adherence to follow-up among women with cervical precancer in urban Cameroon. While follow-up of women with a positive screening of cervical precancer is the most important aspect of cervical cancer secondary prevention, women with cervical precancer do not adhere frequently to recommended follow-up schedule in Cameroon. The aim of the study was to explore and describe the barriers and facilitators to follow-up for cervical precancer among women infected and uninfected with HIV in Cameroon. PARTICIPANTS AND METHODS: A qualitative research design was used to answer the research questions. Participants included eight HIV-infected and -uninfected women diagnosed with cervical precancer and 19 nurses. Data were collected by in-depth individual patient interviews and focus groups with nurses. An interview guide with open-ended questions, using the social ecological model as a framework, included questions that addressed the complexities of the lives of individuals and professionals within a relational context. The interviews were audio-taped and transcribed verbatim in English language. Thematic analysis of data was completed with no epistemological or theoretical perspective underpinning the analyses. RESULTS: Four major themes emerged from the study. They were clinic, personal, and social barriers, and strategies to improve follow-up. CONCLUSION: The use of reminder phone calls and fee reduction, coupled with peer counseling and navigation of women who have been diagnosed with cervical precancer, could be effective ways of improving adherence to follow-up. Further research is needed to explore the same phenomenon among women in rural areas, especially those who were initially attended to in mobile clinics.

19.
J Neurol Sci ; 397: 96-102, 2019 02 15.
Artículo en Inglés | MEDLINE | ID: mdl-30597421

RESUMEN

BACKGROUND: This study is a descriptive review of the clinical and treatment outcome differences in HIV-infected patients with motor neuron syndrome (MNS) and HIV-uninfected patients with motor neuron disease (MND). METHODS: A retrospective analysis of patients with MND/S was performed at Inkosi Albert Luthuli Central Hospital (IALCH), Durban, South Africa between 2003 and 2017. RESULTS: One hundred and thirty six patients were included in the study, 101 (76%) were HIV-uninfected and 35 (26%) were HIV-infected. Ninety four percent of the HIV-infected cohort were <50 years, median 41, IQR (33-45), p < 0.001, had median ALS functional rating scale revised (ALSFRS-R) score of 28, IQR [24-30] and 40% of these patients on anti-retroviral therapy (ART) survived longer than 10 years. Ninety one percent of the HIV-uninfected cohort were >50 years, median 66, IQR(57-74), P < 0.001, had median ALSFRS-R score of 44 (IQR 42-45) and 93% died within 5 years of their illness. CONCLUSION: HIV-infected MNS patients were younger, had more severe disease at presentation and survived longer if treated with ART with possible reversal of the disease process, compared to patients with MND.


Asunto(s)
Infecciones por VIH/complicaciones , Enfermedad de la Neurona Motora/complicaciones , Adulto , Factores de Edad , Anciano , Antirretrovirales/uso terapéutico , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/mortalidad , Humanos , Masculino , Persona de Mediana Edad , Enfermedad de la Neurona Motora/mortalidad , Estudios Retrospectivos , Sudáfrica , Tasa de Supervivencia , Resultado del Tratamiento
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