Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 31
Filtrar
1.
Biomed Rep ; 20(5): 83, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38628628

RESUMEN

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection usually affects the respiratory system; however, a number of atypical manifestations of this disease have also been reported, especially in children. The present study reports a case of a 12-year-old presenting with right unilateral parotitis and sialadenitis and SARS-CoV-2 infection. The young patient, after a 3-day history of fever, was brought to our clinic (Polyclinic University Hospital 'G. Rodolico', Catania, Italy) for the sudden onset of unilateral parotitis accompanied by sialadenitis and hyperaemia of the skin, which was tender to touch. The SARS-CoV-2 molecular swab was positive; the ultrasound of the affected region showed an increase in the volume of the parotid and sublingual gland and reactive lymph nodes compatible with parotitis and sialadenitis. This case suggests that, in the present Coronavirus disease 2019 pandemic, SARS-CoV-2 should be included in the differential diagnosis of parotitis and sialadenitis along with mumps and flue. Notably, a respiratory panel and serology for other potential causes are needed in case of parotitis-like disease.

2.
Pathogens ; 12(11)2023 Nov 02.
Artículo en Inglés | MEDLINE | ID: mdl-38003774

RESUMEN

Mumps is an acute generalized infection caused by a Paramyxovirus. Infection occurs mainly in school-aged children and adolescents and the most prominent clinical manifestation is nonsuppurative swelling and tenderness of the salivary glands, unilaterally or bilaterally. Negative serology for mumps requires a differential diagnosis with other infectious agents, but it is not routine. An 11-year-old girl presented with fever and right-sided parotitis and a negative serology for Mumps. A respiratory panel revealed the presence of Coronavirus OC43 and influenza virus H3N2. Parotitis may be caused by the parainfluenza virus, Epstein-Barr virus, influenza virus, rhinovirus, adenovirus, or other viruses in addition to noninfectious causes such as drugs, immunologic diseases, or obstruction of the salivary tract as predisposing factors. In this case, Coronavirus OC43 and influenza virus H3N2 were detected. The H3N2 has been already reported in the literature, whereas Coronavirus OC43 has never been associated with parotitis before; although, in the present case, the association of the two viruses does not let us conclude which of the two was responsible for the disease.

3.
Healthcare (Basel) ; 10(12)2022 Nov 27.
Artículo en Inglés | MEDLINE | ID: mdl-36553904

RESUMEN

Detainees are one of the most vulnerable populations to human immunodeficiency virus (HIV). This is mostly caused by the lack of knowledge on the topic among the inmates; the lack of prophylaxis; the high percentage of risky behaviors in jail, such as sexual abuse, unprotected sexual intercourses, and injective drug use; and the generally low perception of the risk of transmission. It has also been observed that the problem does not cease to exist at the moment of release, but it also may be aggravated by the weak support system or the total absence of programs for people living with HIV/AIDS (PLWHA) to avoid discontinuation of antiretroviral drugs. Difficulty in providing housing and jobs and, therefore, a form of stability for ex-detainees, also contributes to none adherence to antiretroviral therapy. Among the detainees, there are also categories of people more susceptible to discrimination and violence and, therefore, to risky behaviors, such as black people, Hispanics, transgender people, and men who have sex with men (MSM). We reviewed the literature in order to provide a more complete picture on the situation of PLWHA in jail and to also analyze the difficulties of ex-detainees in adhering to HIV therapy.

4.
Infect Dis Rep ; 14(5): 784-793, 2022 Oct 17.
Artículo en Inglés | MEDLINE | ID: mdl-36286201

RESUMEN

HIV/AIDS is considered a risk factor for increased mortality due to COVID-19. For this reason, it is essential to include this population in vaccination campaigns. Studies found that antibodies are lower in HIV+ patients than in healthy individuals. The aim of this study was to assess the immune response in a cohort of people living with HIV/AIDS (PLWH) vaccinated with COVID-19 vaccination in order to evaluate the role played by the HIV infection in the efficacy of this vaccine. We carried out a cross-sectional study in the period April-September 2021, involving a cohort of PLWH and a cohort of HIV-uninfected people as the control group. The efficacy of vaccination was high in both groups despite a slight and not significant difference between them. However, important differences were found according to the intensity of the immune response. Specifically, while in the HIV+ group almost a quarter of people had a low response, it is important to remark that the control group had only a high or intermediate response after vaccination. Our results suggest the high efficacy of the mRNA COVID-19 vaccine in PLWH and the importance to vaccinate against COVID-19 in these patients in order to increase their protection.

5.
Infect Dis Rep ; 14(5): 655-667, 2022 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-36136821

RESUMEN

Thyroid diseases (TDs) and thyroid asymptomatic dysfunctions (TADs) are correlated with Human Immunodeficiency virus (HIV) infection and Acquired ImmunoDeficiency Syndrome (AIDS) as well as many endocrine dysfunctions and dysregulation of hormonal axes. To date, available studies on People Living With HIV (PLWH) affected by thyroid diseases and asymptomatic dysfunctions are few and rather controversial. The purpose of the present non-systematic literature review is to recap the current knowledge on the main features of thyroid dysfunctions and disorders in PLWH. Large cohort studies are needed for a better comprehension of the impact, evolution and treatment of thyroid pathologies in the HIV-infected population.

6.
Infect Dis Rep ; 14(5): 694-709, 2022 Sep 16.
Artículo en Inglés | MEDLINE | ID: mdl-36136825

RESUMEN

A zoonosis is an infectious disease that has jumped from a non-human animal to humans. Some zoonoses are very common in the Mediterranean area and endemic in specific regions, so they represent an important problem for public health. Human Immunodeficiency Virus (HIV) is a virus that has originated as a zoonosis and is now diffused globally, with the most significant numbers of infected people among the infectious diseases. Since the introduction of antiretroviral therapy (ART), the history for people living with HIV (PLWH) has changed drastically, and many diseases are now no different in epidemiology and prognosis as they are in not-HIV-infected people. Still, the underlying inflammatory state that is correlated with HIV and other alterations related to the infection itself can be a risk factor when infected with other bacteria, parasites or viruses. We reviewed the literature for infection by the most common Mediterranean zoonoses, such as Campylobacter, Salmonella, Brucella, Rickettsia, Borrelia, Listeria and Echinococcus, and a possible correlation with HIV. We included Monkeypox, since the outbreak of cases is becoming a concern lately. We found that HIV may be related with alterations of the microbiome, as for campylobacteriosis, and that there are some zoonoses with a significant prevalence in PLWH, as for salmonellosis.

7.
J Immunol ; 209(4): 655-659, 2022 08 15.
Artículo en Inglés | MEDLINE | ID: mdl-35896335

RESUMEN

Proinflammatory monocytes play a preponderant role in the development of a cytokine storm causing fatal consequences in coronavirus disease 2019 (COVID-19) patients, highlighting the importance of analyzing in more detail monocyte distribution in these patients. In this study, we identified an atypical monocyte subpopulation expressing CD56 molecules that showed a low level of HLA-DR and high level of l-selectin. They released higher amounts of TNF-α and IL-6 and expressed genes associated with an excessive inflammatory process. Remarkably, the frequency of CD56+ monocytes inversely correlated with that of CD16+ monocytes and a high CD56+/CD16+monocyte ratio was associated with both disease severity and mortality, as well as with serum concentration of type I IFN, a factor able to induce the appearance of CD56+ monocytes. In conclusion, severe COVID-19 is characterized by the abundance of hyperinflammatory CD56+ monocytes, which could represent a novel marker with prognostic significance and, possibly, a therapeutic target for controlling the inflammatory process occurring during COVID-19.


Asunto(s)
COVID-19 , Monocitos , Síndrome de Liberación de Citoquinas , Antígenos HLA-DR , Humanos , Receptores de IgG/genética , Factor de Necrosis Tumoral alfa
8.
G Ital Nefrol ; 39(3)2022 Jun 20.
Artículo en Inglés | MEDLINE | ID: mdl-35819035

RESUMEN

Background: Pandemic condition due to Coronavirus disease (COVID-19) caused a fastest augmentation of hospitalization, impairing the healthcare organization. As a consequence, diagnostic and therapeutic delays have been showed. COVID-19-associated coagulopathy is an endothelial disease related to SARSCoV-2 infection. Our study evaluated the thrombosis of arteriovenous fistula (AVF) as risk marker of mortality. Methods: the analysis included 24 dialysis-dependent patients admitted in a period between March 2020 and June 2021. Patients were divided based on AVF thrombosis: the A group without AVF thrombosis (13 patients), and the B group with AVF thrombosis events (11 patients). Pearson or Spearman' correlation tests were performed to detect possible confounding variable to include in multivariate models. Kaplan Meier and Cox regression analysis were performed to compute mortality analysis. Results: Delta D-dimer (Rho: 0.613, p=0.007), over-infections (Rho 0.456; p= 0,026), C-reactive Protein (CRP) (Rho=0.417, p=0.043), death (Rho=0.492, p=0.027), positive pulmonary imaging (Rho 0.388, p=0.074), and high OLT (0.408, p=0.047) were related to AVF thrombosis, using Pearson or Spearman correlation tests. Kaplan Meier test showed a death average of 19 days in group B compared to a global average of 38 days (p=0.029), and Cox analysis showed an HR of 5.01, 95% CI 1.01-24.99, p=0.049. Furthermore, AVF thrombosis explained about the 68% of the mortality, evaluated through the Harrel's C test. Conclusion: We can speculate that AVF thrombosis in hemodialysis patients with COVID-19 could be an early marker of both pro-coagulative process and severe clinical disease and it could be used to stratify patients and identify the ones that can be considered "frail".


Asunto(s)
Fístula Arteriovenosa , Derivación Arteriovenosa Quirúrgica , COVID-19 , Trombosis , Fístula Arteriovenosa/complicaciones , Derivación Arteriovenosa Quirúrgica/efectos adversos , Biomarcadores , COVID-19/complicaciones , Humanos , Diálisis Renal/efectos adversos , Estudios Retrospectivos , Factores de Riesgo , Trombosis/diagnóstico , Trombosis/etiología
9.
JAC Antimicrob Resist ; 4(3): dlac064, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35719203

RESUMEN

Objectives: To describe clinical characteristics and outcomes of COVID-19 patients who developed secondary infections due to carbapenem-resistant Enterobacterales (CRE). Methods: Retrospective observational study including COVID-19 patients admitted to 12 Italian hospitals from March to December 2020 who developed a superinfection by CRE. Superinfection was defined as the occurrence of documented bacterial infection >48 h from admission. Patients with polymicrobial infections were excluded. Demographic, clinical characteristics and outcome were collected. Isolates were classified as KPC, metallo-ß-lactamase (MBL) and OXA-48-producing CRE. A Cox regression analysis was performed to identify factors independently associated with 30 day mortality. Results: Overall, 123 patients (median age 66 years, IQR 59-75) were included. The majority of infections occurred in the ICU (81, 65.9%), while 42 (34.1%) in medical wards. The most common types of infection were bloodstream infections (BSI) (n = 64, 52%), followed by urinary-tract infections (UTI) (n = 28, 22.8%), hospital-acquired/ventilator-associated pneumonia (HAP/VAP) (n = 28, 22.8%), intra-abdominal infections (n = 2, 1.6%) and skin infections (n = 1, 0.8%). Sixty-three (51.2%) infections were caused by KPC-, 54 (43.9%) by MBL-, and 6 (4.8%) by OXA-48-producing CRE. Thirty-day mortality was 33.3% (41/123). On Cox regression analysis, HAP/VAP compared with UTI (HR 7.23, 95% CI 2.09-24.97, P = 0.004), BSI compared with UTI (HR 3.96, 95% CI, 1.33-11.77, P = 0.004), lymphopenia on admission (HR 3, 95% CI 1.44-6.26, P = 0.003) and age (HR 1.05, 95% CI 1.02-1.08, P = 0.002) were predictors of 30 day mortality. Conclusions: Superinfections by CRE were associated with high risk of 30 day mortality in patients with COVID-19. HAP/VAP was the strongest predictor of death in these patients.

10.
Infect Dis Rep ; 14(2): 228-242, 2022 Mar 25.
Artículo en Inglés | MEDLINE | ID: mdl-35447880

RESUMEN

Kaposi sarcoma (KS) is a multifocal lympho-angioproliferative, mesenchymal low-grade tumor associated with a γ2-herpesvirus, named Kaposi sarcoma-associated virus or human herpesvirus (KSHV/HHV8). The lung is considered a usual anatomical location of KS, despite being infrequent, often in association with extensive mucocutaneous lesions and very uncommonly as an isolated event. We report a case of a pulmonary KS (pKS) in a human immunodeficiency virus (HIV) naïve patient, which was atypical due to a lack of cutaneous involvement and an absence of respiratory symptoms. The pKS was initially identified as a tumoral suspected nodular lesion and only after immunohistochemical analysis was it characterized as KS. Furthermore, the diagnosis of pKS led to the discovery of the HIV-seropositive status of the patient, previously unknown. Our report underlines the importance of considering pKS even without skin lesions and as a first manifestation of HIV infection. We also reviewed literature on the current knowledge about pKS in people living with HIV (PLWH) to underline how one of the most common HIV/acquired immunodeficiency syndrome (AIDS) associated tumors can have a challenging localization and be difficult to recognize.

11.
Infect Dis Rep ; 14(1): 43-55, 2022 Jan 07.
Artículo en Inglés | MEDLINE | ID: mdl-35076514

RESUMEN

Hepatocellular carcinoma (HCC) accounts for approximately 75-90% of primary liver cancers and is the sixth most common cancer and the third leading cause of cancer-related deaths worldwide. In the HIV-positive population, the risk of HCC is approximately four times higher than in the general population, with higher cancer-specific mortality than in HIV-negative patients. In most cases, HCC diagnosis is made in patients younger than the HIV-negative population and in the intermediate-advanced stage, thus limiting the therapeutic possibilities. Treatment choice in HIV-positive patients with HCC is subject to cancer staging, liver function and health status, as for HIV-negative and non-HIV-negative HCC patients. There are relatively few studies on the efficacy and safety in HIV-positive patients to date in loco-regional treatments for HCC. So far, literature shows that curative treatments such as radiofrequency ablation (RFA) have no significant differences in overall survival between HIV-positive and HIV-negative patients, as opposed to palliative treatments such as TACE, where there is a significant difference in overall survival. Although it can be assumed that the most recently discovered loco-regional therapies are applicable to HIV-positive patients with HCC in the same way as HIV-negative patients, further studies are needed to confirm this hypothesis. The purpose of our review is to evaluate these treatments, their efficacy, effectiveness, safety and their applicability to HIV-positive patients.

12.
Clin Kidney J ; 14(10): 2227-2233, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34603699

RESUMEN

BACKGROUND: The coronavirus disease 2019 (COVID-19) pandemic has had a profound impact on the general population and the burden of pre-existing comorbidities has heavily affected the outcome of the infection. Hyponatraemia has been frequently described. Conversely, hypernatraemia has rarely been described in COVID-19. METHODS: The studied cohort encompasses all COVID-19 patients consecutively admitted to the Messina Hospital, Italy, during the first wave of the epidemic. Since healthcare structures were not overwhelmed at that time, indications for hospitalization were homogeneous throughout the study period. Serum sodium levels, kidney function [estimated glomerular filtration rate (eGFR)], demographic and clinical characteristics were recorded at admission. Correlation between mortality, sodium and eGFR was evaluated by survival curves and univariate and multivariate regression models. RESULTS: Baseline biochemical and clinical data at the time of admission were available for 115 COVID-19-confirmed patients. The median age at admission was 73 years (48% men), with a median Charlson Comorbidity Index of 4. A total of 23.5% of patients presented with a sodium level ≥146 mmol/L, while 7.8% had sodium <135 mmol/L. Hypernatraemic patients were older, with higher comorbidity. Age, hypernatraemia and reduced eGFR were associated with increased mortality in both univariate and multivariate regression models (P < 0.001). The combination of hypernatraemia and reduced renal function at admission had an odds ratio of 47.67 (95% confidence interval 10.08-225.43) of dying compared with patients with an eGFR ≥60 mL/min and sodium <145 mmol/L. CONCLUSIONS: Our study suggests that the association between hypernatraemia and reduced eGFR at referral is a highly relevant prognostic marker for death during hospitalization. The role of this association should be further tested in larger, multicentre cohorts.

13.
Front Oncol ; 11: 689789, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34422644

RESUMEN

Skin cancers represent the most common human tumors with a worldwide increasing incidence. They can be divided into melanoma and non-melanoma skin cancers (NMSCs). NMSCs include mainly squamous cell (SCC) and basal cell carcinoma (BCC) with the latest representing the 80% of the diagnosed NMSCs. The pathogenesis of NMSCs is clearly multifactorial. A growing body of literature underlies a crucial correlation between skin cancer, chronic inflammation and immunodeficiency. Intensity and duration of immunodeficiency plays an important role. In immunocompromised patients the incidence of more malignant forms or the development of multiple tumors seems to be higher than among immunocompetent patients. With regards to people living with HIV (PLWH), since the advent of combined antiretroviral therapy (cART), the incidence of non-AIDS-defining cancers (NADCs), such as NMSCs, have been increasing and now these neoplasms represent a leading cause of illness in this particular population. PLWH with NMSCs tend to be younger, to have a higher risk of local recurrence and to have an overall poorer outcome. NMSCs show an indolent clinical course if diagnosed and treated in an early stage. BCC rarely metastasizes, while SCC presents a 4% annual incidence of metastasis. Nevertheless, metastatic forms lead to poor patient outcome. NMSCs are often treated with full thickness treatments (surgical excision, Mohs micro-graphic surgery and radiotherapy) or superficial ablative techniques (such as cryotherapy, electrodesiccation and curettage). Advances in genetic landscape understanding of NMSCs have favored the establishment of novel therapeutic strategies. Concerning the therapeutic evaluation of PLWH, it's mandatory to evaluate the risk of interactions between cART and other treatments, particularly antiblastic chemotherapy, targeted therapy and immunotherapy. Development of further treatment options for NMSCs in PLWH seems needed. We reviewed the literature after searching for clinical trials, case series, clinical cases and available databases in Embase and Pubmed. We review the incidence of NMSCs among PLWH, focusing our attention on any differences in clinicopathological features of BCC and SCC between PLWH and HIV negative persons, as well as on any differences in efficacy and safety of treatments and response to immunomodulators and finally on any differences in rates of metastatic disease and outcomes.

14.
Virol J ; 18(1): 168, 2021 08 14.
Artículo en Inglés | MEDLINE | ID: mdl-34391446

RESUMEN

A growing number of emerging SARS-CoV-2 variants is being identified worldwide, potentially impacting the effectiveness of current vaccines. We report the data obtained in several Italian regions involved in the SARS-CoV-2 variant monitoring from the beginning of the epidemic and spanning the period from October 2020 to March 2021.


Asunto(s)
COVID-19/epidemiología , Epidemias , SARS-CoV-2/genética , COVID-19/virología , Humanos , Italia/epidemiología , Prevalencia
15.
Insights Imaging ; 12(1): 63, 2021 May 26.
Artículo en Inglés | MEDLINE | ID: mdl-34037876

RESUMEN

Breast lesions with uncertain malignant behavior, also known as high-risk or B3 lesions, are composed of a variety of pathologies with differing risks of associated malignancy. While open excision was previously preferred to manage all high-risk lesions, tailored management has been increasingly favored to reduce overtreatment and spare patients from unnecessary anxiety or high healthcare costs associated with surgical excision. The purpose of this work is to provide the reader with an accurate overview focused on the main high-risk lesions of the breast: atypical intraductal epithelial proliferation (atypical ductal hyperplasia), lobular neoplasia (including the subcategories lobular carcinoma in situ and atypical lobular hyperplasia), flat epithelial atypia, radial scar and papillary lesions, and phyllodes tumor. Beyond merely presenting the radiological aspects of these lesions and the recent literature, information about their potential upgrade rates is discussed in order to provide a useful guide for appropriate clinical management while avoiding the risks of unnecessary surgical intervention (overtreatment).

17.
Int J Infect Dis ; 106: 98-104, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-33737130

RESUMEN

OBJECTIVE: From 2011 to 2017, the total number of refugees arriving in Europe, particularly in Italy, climbed dramatically. Our aim was to diagnose pulmonary TB in migrants coming from the African coast using a clinical-based port of arrival (PoA) screening program. METHODS: From 2016 to 2018, migrants coming via the Mediterranean Route were screened for body temperature and the presence of cough directly on the dock: if they were feverish with productive cough, their sputum was examined with NAAT; with a dry cough, they underwent Chest-X-ray (CXR). Those migrants with positive NAAT or CXR suggestive for TB were admitted to our ward. In addition, we plotted an SEI simulation of our project to evaluate the epidemiological impact of our screening. RESULTS: Out of 33.676 disembarking migrants, 314 (0.9%) had fever and cough: 80 (25.47%) with productive cough underwent NAAT in sputum, and 16 were positive for TB; 234 (74.52%) with dry cough had a CXR examination, and 39 were suggestive of TB, later confirmed by mycobacterial culture. The SEI-new model analysis demonstrated that our screening program significantly reduced TB spreading all over the country. CONCLUSIONS: For possible future high migrant flows, PoA screening for TB has to be considered feasible and effective in decreasing TB spreading.


Asunto(s)
Tamizaje Masivo , Refugiados/estadística & datos numéricos , Tuberculosis Pulmonar/diagnóstico , Adulto , Femenino , Humanos , Masculino , Radiografía , Esputo/microbiología , Migrantes/estadística & datos numéricos , Tuberculosis Pulmonar/diagnóstico por imagen
18.
Dermatol Ther ; 34(1): e14660, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-33301216

RESUMEN

Psoriasis is a chronic immune-mediated disease characterized by inflammation of skin (psoriasis) or joints (psoriatic arthritis) or both, resulting from a dysregulation in particular of the T helper (Th)17 functions. There is no available cure for psoriasis, and a life-long treatment is needed to control signs and symptoms. Research interest is high around the newest biological drugs approved for the treatment of moderate to severe psoriasis and psoriatic arthritis, and especially drugs blocking the IL-23/IL-17 axis. Our aim is to review the new biological drugs for the treatment of psoriasis and their adverse effects, focusing on the risk of infections.


Asunto(s)
Artritis Psoriásica , Productos Biológicos/uso terapéutico , Psoriasis , Artritis Psoriásica/diagnóstico , Artritis Psoriásica/tratamiento farmacológico , Productos Biológicos/efectos adversos , Humanos , Inflamación , Psoriasis/diagnóstico , Psoriasis/tratamiento farmacológico , Piel
19.
Sci Rep ; 10(1): 20178, 2020 11 19.
Artículo en Inglés | MEDLINE | ID: mdl-33214658

RESUMEN

To evaluate the ocular manifestation in patients hospitalized with coronavirus disease 2019 (COVID-19) and to search for the presence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in tears. This study was conducted in 29 hospitalized patients who were admitted to the COVID center at the Policlinic Hospital of the University of Messina, Italy. All patients underwent an ophthalmologic assessment comprising a Standardized Patient Evaluation of Eye Dryness (SPEED) questionnaire, anterior segment, and the ocular surface examination of both eyes using a portable slit lamp. The Schirmer I test was performed, and the filter paper strip was used to search for the presence of SARS-CoV-2 on the ocular surface by real-time quantitative polymerase chain reaction (RT-qPCR). A total of 10 patients reported ocular symptoms; in particular, four reported eye burning, three reported foreign body sensation, and three reported tearing. Moreover, seven patients presented conjunctival hyperemia and/or chemosis, eleven patients presented blepharitis signs such as lid margin hyperemia and/or telangiectasia, crusted eyelashes, and meibomian orifices alterations. Tear analysis did not reveal the presence of SARS-CoV-2. Ocular symptoms are common in patients with COVID-19; although, tear analysis did not reveal the presence of SARS-CoV-2.


Asunto(s)
COVID-19/complicaciones , Enfermedades de la Conjuntiva/etiología , Enfermedades de la Córnea/etiología , Ojo/patología , Anciano , Anciano de 80 o más Años , COVID-19/patología , Enfermedades de la Conjuntiva/epidemiología , Enfermedades de la Conjuntiva/patología , Enfermedades de la Córnea/epidemiología , Enfermedades de la Córnea/patología , Femenino , Humanos , Masculino
20.
JCI Insight ; 5(20)2020 10 15.
Artículo en Inglés | MEDLINE | ID: mdl-33055422

RESUMEN

Despite the efficacy of antiretroviral therapy (ART), HIV persists in a latent form and remains a hurdle to eradication. CD4+ T lymphocytes harbor the majority of the HIV reservoir, but the role of individual subsets remains unclear. CD4+ T cells were sorted into central, transitional, effector memory, and naive T cells. We measured HIV DNA and performed proviral sequencing of more than 1900 proviruses in 2 subjects at 2 and 9 years after ART initiation to estimate the contribution of each subset to the reservoir. Although our study was limited to 2 subjects, we obtained comparable findings with publicly available sequences. While the HIV integration levels were lower in naive compared with memory T cells, naive cells were a major contributor to the intact proviral reservoir. Notably, proviral sequences isolated from naive cells appeared to be unique, while those retrieved from effector memory cells were mainly clonal. The number of clones increased as cells differentiated from a naive to an effector memory phenotype, suggesting naive cells repopulate the effector memory reservoir as previously shown for central memory cells. Naive T cells contribute substantially to the intact HIV reservoir and represent a significant hurdle for HIV eradication.


Asunto(s)
Linfocitos T CD4-Positivos/efectos de los fármacos , Infecciones por VIH/tratamiento farmacológico , VIH-1/efectos de los fármacos , Linfocitos T/inmunología , Adulto , Antirretrovirales/administración & dosificación , Antirretrovirales/inmunología , Linfocitos T CD4-Positivos/inmunología , Linfocitos T CD4-Positivos/virología , ADN Viral/genética , ADN Viral/inmunología , ADN Viral/aislamiento & purificación , Infecciones por VIH/genética , Infecciones por VIH/inmunología , Infecciones por VIH/virología , VIH-1/inmunología , VIH-1/patogenicidad , Humanos , Masculino , Persona de Mediana Edad , Fenotipo , Filogenia , Provirus/efectos de los fármacos , Provirus/inmunología , Linfocitos T/efectos de los fármacos , Linfocitos T/virología , Carga Viral/efectos de los fármacos , Carga Viral/inmunología
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...