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1.
Clin Infect Dis ; 2024 Jul 03.
Artigo em Inglês | MEDLINE | ID: mdl-38959300

RESUMO

BACKGROUND: Non-AIDS defining malignancies present a growing challenge for persons with HIV (PWH), yet tailored interventions for timely cancer diagnosis are lacking. The Spanish IMPAC-Neo protocol was designed to compare two comprehensive cancer screening strategies integrated into routine HIV care. This study reports baseline data on the prevalence and types of precancerous lesions and early-stage cancer among participants at enrolment. Acceptability of the procedure was additionally assessed. METHODS: Cross-sectional analysis of a comprehensive screening protocol to detect precancer and cancer. The readiness of healthcare providers to implement the protocol was evaluated using a validated 4-item survey. RESULTS: Among the 1430 enrolled PWH, 1172 underwent 3181 screening tests, with positive findings in 29.4% of cases, leading to further investigation in 20.7%. Adherence to the protocol was 84%, with HIV providers expressing high acceptability (97.1%), appropriateness (91.4%), and feasibility (77.1%). A total of 145 lesions were identified in 109 participants, including 60 precancerous lesions in 35 patients (3.0%), 9 early-stage cancers in 9 patients (0.8%), and 76 low-risk lesions in 65 subjects (5.5%). Adverse events related to screening occurred in 0.8% of participants, all mild. The overall prevalence of cancer precursors or early-stage cancer was 3.8% (95% CI, 2.74%-5.01%), with highest rates observed in individuals screened for anal and colorectal cancers. CONCLUSIONS: The baseline comprehensive cancer screening protocol of the IMPAC-Neo study successfully identified a significant proportion of PWH with precancerous lesions and early-stage cancer. High adherence rates and positive feedback from providers suggest effective implementation potential in real-world healthcare settings.

2.
J Med Virol ; 96(3): e29511, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38469884

RESUMO

To date, former research about the impact of HIV infection on mpox poor outcomes is still limited and controversial. Therefore, the aim of this study was to assess the impact of HIV on the clinical course of mpox, in a large population of patients from Spain. Nationwide case-series study. Patients from 18 Spanish hospitals, with PCR-confirmed mpox from April 27, 2022 to June 30, 2023 were included in this study. The main outcome was the development of long or complicated (LC) mpox, defined as: (i) duration of the clinical course ≥ 28 days, or; (ii) disseminated disease, or: (iii) emergence of severe complications. One thousand eight hundred twenty-three individuals were included. Seven hundred eighty-six (43%) were people living with HIV (PLWH), of whom 11 (1%) had a CD4 cell count < 200 cells/mm3 and 33 (3%) <350 cells/mm3 . HIV viral load ≥ 1000 cp/mL was found in 27 (3%) PLWH, none of them were on effective ART. Fifteen (60%) PLWH with HIV-RNA ≥ 1000 cp/mL showed LC versus 182 (29%) PLWH with plasma HIV-RNA load < 1000 copies/mL and 192 (24%) individuals without HIV infection (p < 0.001). In multivariate analysis, adjusted by age, sex, CD4 cell counts and HIV viral load at the time of mpox, only plasma HIV-RNA ≥ 1000 cp/mL was associated with a greater risk of developing LC mpox [adjusted OR = 4.06 (95% confidence interval 1.57-10.51), p = 0.004]. PLWH with uncontrolled HIV infection, due to lack of ART, are at a greater risk of developing LC mpox. Efforts should be made to ensure HIV testing is carried out in patients with mpox and to start ART without delay in those tested positive.


Assuntos
Infecções por HIV , Mpox , Humanos , Contagem de Linfócito CD4 , Progressão da Doença , RNA
3.
J Med Virol ; 95(12): e29287, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-38084763

RESUMO

To evaluate the prevalence of transmitted drug resistance (TDR) to nucleoside and nonnucleoside reverse transcriptase inhibitors (NRTI, NNRTI), protease inhibitors (PI), and integrase strand transfer inhibitors (INSTI) in Spain during the period 2019-2021, as well as to evaluate transmitted clinically relevant resistance (TCRR) to antiretroviral drugs. Reverse transcriptase (RT), protease (Pro), and Integrase (IN) sequences from 1824 PLWH (people living with HIV) were studied. To evaluate TDR we investigated the prevalence of surveillance drug resistance mutations (SDRM). To evaluate TCRR (any resistance level ≥ 3), and for HIV subtyping we used the Stanford v.9.4.1 HIVDB Algorithm and an in-depth phylogenetic analysis. The prevalence of NRTI SDRMs was 3.8% (95% CI, 2.8%-4.6%), 6.1% (95% CI, 5.0%-7.3%) for NNRTI, 0.9% (95% CI, 0.5%-1.4%) for PI, and 0.2% (95% CI, 0.0%-0.9%) for INSTI. The prevalence of TCRR to NRTI was 2.1% (95% CI, 1.5%-2.9%), 11.8% for NNRTI, (95% CI, 10.3%-13.5%), 0.2% (95% CI, 0.1%-0.6%) for PI, and 2.5% (95% CI, 1.5%-4.1%) for INSTI. Most of the patients were infected by subtype B (79.8%), while the majority of non-Bs were CRF02_AG (n = 109, 6%). The prevalence of INSTI and PI resistance in Spain during the period 2019-2021 is low, while NRTI resistance is moderate, and NNRTI resistance is the highest. Our results support the use of integrase inhibitors as first-line treatment in Spain. Our findings highlight the importance of ongoing surveillance of TDR to antiretroviral drugs in PLWH particularly with regard to first-line antiretroviral therapy.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Humanos , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Espanha/epidemiologia , Filogenia , Fármacos Anti-HIV/farmacologia , Fármacos Anti-HIV/uso terapêutico , Antirretrovirais/farmacologia , Antirretrovirais/uso terapêutico , Integrases/genética , Integrases/uso terapêutico , Mutação , Farmacorresistência Viral/genética , Inibidores da Transcriptase Reversa/farmacologia , Inibidores da Transcriptase Reversa/uso terapêutico , Prevalência
4.
HIV Med ; 23(7): 705-716, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35037379

RESUMO

OBJECTIVES: We assessed the prevalence of anti-hepatitis C virus (HCV) antibodies and active HCV infection (HCV-RNA-positive) in people living with HIV (PLWH) in Spain in 2019 and compared the results with those of four similar studies performed during 2015-2018. METHODS: The study was performed in 41 centres. Sample size was estimated for an accuracy of 1%. Patients were selected by random sampling with proportional allocation. RESULTS: The reference population comprised 41 973 PLWH, and the sample size was 1325. HCV serostatus was known in 1316 PLWH (99.3%), of whom 376 (28.6%) were HCV antibody (Ab)-positive (78.7% were prior injection drug users); 29 were HCV-RNA-positive (2.2%). Of the 29 HCV-RNA-positive PLWH, infection was chronic in 24, it was acute/recent in one, and it was of unknown duration in four. Cirrhosis was present in 71 (5.4%) PLWH overall, three (10.3%) HCV-RNA-positive patients and 68 (23.4%) of those who cleared HCV after anti-HCV therapy (p = 0.04). The prevalence of anti-HCV antibodies decreased steadily from 37.7% in 2015 to 28.6% in 2019 (p < 0.001); the prevalence of active HCV infection decreased from 22.1% in 2015 to 2.2% in 2019 (p < 0.001). Uptake of anti-HCV treatment increased from 53.9% in 2015 to 95.0% in 2019 (p < 0.001). CONCLUSIONS: In Spain, the prevalence of active HCV infection among PLWH at the end of 2019 was 2.2%, i.e. 90.0% lower than in 2015. Increased exposure to DAAs was probably the main reason for this sharp reduction. Despite the high coverage of treatment with direct-acting antiviral agents, HCV-related cirrhosis remains significant in this population.


Assuntos
Coinfecção , Infecções por HIV , Hepatite C Crônica , Hepatite C , Antivirais/uso terapêutico , Coinfecção/tratamento farmacológico , Coinfecção/epidemiologia , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Hepacivirus/genética , Hepatite C/tratamento farmacológico , Hepatite C/epidemiologia , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/epidemiologia , Humanos , Cirrose Hepática/epidemiologia , RNA/uso terapêutico , Espanha/epidemiologia
5.
Neurol Sci ; 43(1): 441-452, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33907941

RESUMO

INTRODUCTION: Orolingual angioedema (OA) after intravenous thrombolysis (IVT) with alteplase in acute stroke can be a life-threatening complication. Our aim was to describe its incidence, clinical features, and related factors. PATIENTS AND METHODS: We analyzed a single-center cohort of stroke patients treated with IVT in an 8-year period. We compared patients with (OA+) and without OA (OA-). A meta-analysis of previous studies was performed to identify factors related with OA. RESULTS: OA occurred in 7 out of 512 patients (1.37%; 95% CI 0.86-1.88%). Previous hypertension, diabetes, and treatment with ACE inhibitors were more frequent in OA+ compared to OA- patients (100% vs 58%, p = 0.045; 71.4% vs 21.8%, p = 0.008; and 71.4% vs. 16.6%, p = 0.002). Three out of 4 cases with unilateral OA had a contralateral insular infarct. The meta-analysis included 13 studies: 5720 stroke patients treated with IVT and 209 cases of OA. Factors related with OA were ACE inhibitor treatment (RR 5.33 [95% CI 3.07-9.26]) female sex (RR 1.94 [95% CI 1.24-3.03]), hypertension (RR 2.64 [95% CI 1.79-3.90]), diabetes (RR 1.60 [95% CI 1.16-2.21]), and dyslipidemia (RR 1.46 [95% CI 1.00-2.12]). The effect of insular infarct was inconclusive: positive when considering complete infarcts (RR 1.97 [95% CI 1.18-3.29]) and absent when partial infarcts were also included. CONCLUSIONS: OA occurred in 1.37% of the IVT-treated stroke patients. Previous treatment with ACE inhibitors, hypertension, diabetes, dyslipidemia, and female sex were associated with OA. The effect of insular infarct needs to be clarified in further studies.


Assuntos
Angioedema , Isquemia Encefálica , AVC Isquêmico , Acidente Vascular Cerebral , Angioedema/induzido quimicamente , Angioedema/epidemiologia , Isquemia Encefálica/complicações , Isquemia Encefálica/tratamento farmacológico , Isquemia Encefálica/epidemiologia , Feminino , Fibrinolíticos/efeitos adversos , Humanos , Acidente Vascular Cerebral/tratamento farmacológico , Acidente Vascular Cerebral/epidemiologia , Terapia Trombolítica , Ativador de Plasminogênio Tecidual/efeitos adversos , Resultado do Tratamento
6.
Cerebrovasc Dis ; 50(3): 310-316, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33730715

RESUMO

INTRODUCTION: We analyzed whether the coronavirus disease 2019 (COVID-19) crisis affected acute stroke care in our center during the first 2 months of lockdown in Spain. METHODS: This is a single-center, retrospective study. We collected demographic, clinical, and radiological data; time course; and treatment of patients meeting the stroke unit admission criteria from March 14 to May 14, 2020 (COVID-19 period group). Data were compared with the same period in 2019 (pre-COVID-19 period group). RESULTS: 195 patients were analyzed; 83 in the COVID-19 period group, resulting in a 26% decline of acute strokes and transient ischemic attacks (TIAs) admitted to our center compared with the previous year (p = 0.038). Ten patients (12%) tested positive for PCR SARS-CoV-2. The proportion of patients aged 65 years and over was lower in the COVID-19 period group (53 vs. 68.8%, p = 0.025). During the pandemic period, analyzed patients were more frequently smokers (27.7 vs. 10.7%, p = 0.002) and had less frequently history of prior stroke (13.3 vs. 25%, p = 0.043) or atrial fibrillation (9.6 vs. 25%, p = 0.006). ASPECTS score was lower (9 [7-10] vs. 10 [8-10], p = 0.032), NIHSS score was slightly higher (5 [2-14] vs. 4 [2-8], p = 0.122), onset-to-door time was higher (304 [93-760] vs. 197 [91.25-645] min, p = 0.104), and a lower proportion arrived within 4.5 h from onset of symptoms (43.4 vs. 58%, p = 0.043) during the CO-VID-19 period. There were no differences between proportion of patients receiving recanalization treatment (intravenous thrombolysis and/or mechanical thrombectomy) and in-hospital delays. CONCLUSION: We observed a reduction in the number of acute strokes and TIAs admitted during the COVID-19 period. This drop affected especially elderly patients, and despite a delay in their arrival to the emergency department, the proportion of patients treated with recanalization therapies was preserved.


Assuntos
COVID-19/complicações , SARS-CoV-2/patogenicidade , Acidente Vascular Cerebral/terapia , Idoso , Idoso de 80 Anos ou mais , Envelhecimento , Isquemia Encefálica/diagnóstico , COVID-19/prevenção & controle , Serviço Hospitalar de Emergência/estatística & dados numéricos , Feminino , Humanos , Ataque Isquêmico Transitório/terapia , Masculino , Pessoa de Meia-Idade , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/etiologia , Terapia Trombolítica/métodos , Tempo para o Tratamento
7.
Euro Surveill ; 26(25)2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-34169818

RESUMO

BackgroundRecent and reliable estimates on the prevalence of coinfection with human immunodeficiency virus (HIV) and hepatitis B virus (HBV) in Europe are lacking.AimLeveraged on a study designed to assess HIV/HCV coinfection prevalence, we assessed the prevalence of HIV/HBV coinfection in Spain in 2018 and compared the results with five similar studies performed since 2002.MethodsThis cross-sectional prevalence study was carried out in 43 centres, and patients were selected using simple random sampling. The reference population comprised 40,322 patients and the sample size were 1,690 patients.ResultsThe prevalence of HIV/HBV coinfection in Spain at the end of 2018 was 3.2%. The prevalence in 2002, 2009, 2015, 2016 and 2017 was 4.9%, 3.4%, 3%, 3.9% and 3%, respectively. Among the HIV/HBV-coinfected patients identified in 2018, 16.7% had cirrhosis according to transient elastography and 26.3% tested positive for antibodies against hepatitis D virus. All HIV/HBV-coinfected patients were receiving drugs with activity against HBV, and 97% of those tested for HBV DNA had an HBV DNA load < 80 IU/mL.ConclusionsThe prevalence of HIV/HBV coinfection in Spain remained stable at around 3% for a decade. Our data could facilitate the design of national programmes to control HBV infection and help identify areas of patient management that need improvement.


Assuntos
Coinfecção , Infecções por HIV , Hepatite B , Coinfecção/epidemiologia , Estudos Transversais , Europa (Continente) , Infecções por HIV/epidemiologia , Hepatite B/epidemiologia , Vírus da Hepatite B , Humanos , Prevalência , Espanha/epidemiologia
8.
J Antimicrob Chemother ; 75(1): 208-214, 2020 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-31586414

RESUMO

BACKGROUND: Darunavir/cobicistat can be used as mono, dual, triple or more than triple therapy. OBJECTIVES: To assess factors associated with the number of drugs in darunavir/cobicistat regimens. METHODS: A nationwide retrospective cohort study of consecutive HIV-infected patients initiating darunavir/cobicistat in Spain from July 2015 to May 2017. Baseline characteristics, efficacy and safety at 48 weeks were compared according to the number of drugs used. RESULTS: There were 761 patients (75% men, 98% were antiretroviral-experienced, 32% had prior AIDS, 84% had HIV RNA <50 copies/mL and 88% had ≥200 CD4 cells/mm3) who initiated darunavir/cobicistat as mono (n=308, 40%), dual (n=173, 23%), triple (n=253, 33%) or four-drug (n=27, 4%) therapy. Relative to monotherapy, triple therapy was more common in men aged <50 years, with prior AIDS and darunavir plus ritonavir use, and with CD4 cells <200/mm3 and with detectable viral load at initiation of darunavir/cobicistat; dual therapy was more common with previous intravenous drug use, detectable viral load at initiation of darunavir/cobicistat and no prior darunavir plus ritonavir; and four-drug therapy was more common with prior AIDS and detectable viral load at initiation of darunavir/cobicistat. Monotherapy and dual therapy showed a trend to better virological responses than triple therapy. CD4 responses and adverse effects did not differ among regimens. DISCUSSION: Darunavir/cobicistat use in Spain has been tailored according to clinical characteristics of HIV-infected patients. Monotherapy and dual therapy have been common and preferentially addressed to older patients with a better HIV status, suggesting that health issues other than HIV infection may have been strong determinants of its prescription.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Cobicistat/uso terapêutico , Darunavir/uso terapêutico , Infecções por HIV/tratamento farmacológico , Adulto , Fatores Etários , Quimioterapia Combinada , Feminino , HIV-1/efeitos dos fármacos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Espanha , Carga Viral/efeitos dos fármacos
9.
J Antimicrob Chemother ; 75(5): 1294-1300, 2020 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-32030406

RESUMO

OBJECTIVES: We report the results of the reverse transcriptase (RT)/protease (PR) transmitted drug resistance (TDR) prevalence study in 2018, focusing on doravirine resistance-associated mutations and the differences observed when Stanford or French National Agency for AIDS Research (ANRS)/Spanish Network of AIDS Research (RIS)/IAS-USA resistance interpretation algorithms are used to describe clinically relevant resistance. METHODS: We used the WHO 2009 list to investigate the prevalence of NNRTI, NRTI and PI TDR, in treatment-naive HIV-1-infected patients, adding mutations E138A/G/K/Q/R, V106I, V108I, V179L, G190Q, H221Y, F227C/L/V, M230IDR, L234I, P236L and Y318F in RT. The prevalence of doravirine resistance-associated mutations, as described by Soulie et al. in 2019, was evaluated. Clinically relevant TDR was investigated using the latest versions of ANRS, RIS, IAS-USA and Stanford algorithms. RESULTS: NNRTI mutations were detected in 82 of 606 (13.5%) patients. We found 18 patients (3.0%) with NRTI mutations and 5 patients (0.8%) with PI mutations. We detected 11 patients harbouring doravirine resistance-associated mutations (prevalence of 1.8%). Furthermore, we observed important differences in clinically relevant resistance to doravirine when ANRS/RIS (0.7%), IAS-USA (0.5%) or Stanford algorithms (5.0%) were used. V106I, which was detected in 3.8% of the patients, was the main mutation driving these differences. V106I detection was not associated with any of the clinical, demographic or virological characteristics of the patients. CONCLUSIONS: The prevalence of NRTI and PI TDR remains constant in Spain. Doravirine TDR is very infrequent by RIS/ANRS/IAS-USA algorithms, in contrast with results using the Stanford algorithm. Further genotype-phenotype studies are necessary to elucidate the role of V106I in doravirine resistance.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Algoritmos , Fármacos Anti-HIV/farmacologia , Fármacos Anti-HIV/uso terapêutico , Farmacorresistência Viral , Genótipo , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Humanos , Mutação , Prevalência , Piridonas , Espanha , Triazóis
10.
J Viral Hepat ; 27(9): 955-958, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32347645

RESUMO

Direct-acting antivirals (DAAs) for HCV treatment have improved tolerance and efficacy among adults, but experience in vertical transmission is scarce. In our vertically HIV/HCV co-infected youth cohort of 58 patients, DAA achieved excellent rates of cure among naïve and pretreated individuals. Treating vertically infected seems important as 29.6% displayed advanced fibrosis at treatment initiation.


Assuntos
Antivirais , Coinfecção , Infecções por HIV , Hepatite C , Adolescente , Antivirais/uso terapêutico , Coinfecção/tratamento farmacológico , Infecções por HIV/tratamento farmacológico , Hepatite C/tratamento farmacológico , Humanos
11.
Reprod Domest Anim ; 54 Suppl 4: 32-40, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31625241

RESUMO

Ovine artificial insemination (OAI) is not commonly performed because of specific problems related to semen application techniques, leading to highly variable results. The ideal methodology (frozen-thawed semen/vaginal route) is unfeasible under field conditions due to the cervix morphology of the ewe, which prevents the process of intrauterine insemination necessary to obtain acceptable results. Currently, OAI commercial programmes use superficial cervical insemination, CAI (vaginal), with chilled semen (15°C) and intrauterine insemination, LAI (laparoscopic), with frozen-thawed semen. The ability to improve upon these contrasting techniques may be derived from examining certain poorly studied factors such as insemination time, productive state of females and alternatives of seminal preservation, some of which we reviewed in this work. This interim solution will remain in use until AI by the vaginal route with frozen-thawed semen is developed, but it poses new challenges in optimizing the freezing of the sperm and adapting the cervical (CAI) and/or transcervical intrauterine AI (TCAI). In this review, we address the current problems and evaluate their methodological (mechanical) and chemical (dilation) alternatives. Currently, TCAI is a methodologically complex technique with poor fertility results, so further studies are needed to improve the logistics of this procedure and the results of its application.


Assuntos
Inseminação Artificial/veterinária , Carneiro Doméstico/fisiologia , Animais , Criopreservação/métodos , Criopreservação/veterinária , Feminino , Fertilidade , Inseminação Artificial/métodos , Primeira Fase do Trabalho de Parto/efeitos dos fármacos , Lactação , Laparoscopia/veterinária , Masculino , Gravidez , Preservação do Sêmen/veterinária , Carneiro Doméstico/anatomia & histologia
12.
Stroke ; 49(1): 90-97, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-29222229

RESUMO

BACKGROUND AND PURPOSE: Rapid decision making optimizes outcomes from endovascular thrombectomy for acute cerebral ischemia. Visual displays facilitate swift review of potential outcomes and can accelerate decision processes. METHODS: From patient-level, pooled randomized trial data, 100 person-icon arrays (Kuiper-Marshall personographs) were generated showing beneficial and adverse effects of endovascular thrombectomy for patients with acute cerebral ischemia and large vessel occlusion using (1) automated (algorithmic) and (2) expert-guided joint outcome table specification. RESULTS: For the full 7-category modified Rankin Scale, thrombectomy added to IV tPA (intravenous tissue-type plasminogen activator) alone had number needed to treat to benefit 2.9 (95% confidence interval, 2.6-3.3) and number needed to harm 68.9 (95% confidence interval, 40-250); thrombectomy for patients ineligible for IV tPA had number needed to treat to benefit 2.3 (95% confidence interval, 2.1-2.5) and number needed to harm 100 (95% confidence interval, 62.5-250). Visual displays of treatment effects on 100 patients showed: with thrombectomy added to IV tPA alone, 34 patients have better disability outcome, including 14 more normal or near normal (modified Rankin Scale, 0-1); with thrombectomy for patients ineligible for IV tPA, 44 patients have a better disability outcome, including 16 more normal or nearly normal. Displays also showed that harm (increased modified Rankin Scale final disability) occurred in 1 of 100 patients in both populations, mediated by increased new territory infarcts. The person-icon figures integrated these outcomes, and early side-effects, in a single display. CONCLUSIONS: Visual decision aids are now available to rapidly educate healthcare providers, patients, and families about benefits and risks of endovascular thrombectomy, both when added to IV tPA in tPA-eligible patients and as the sole reperfusion treatment in tPA-ineligible patients.


Assuntos
Recursos Audiovisuais , Tomada de Decisões , Procedimentos Endovasculares/educação , Família , Educação de Pacientes como Assunto , Médicos , Trombectomia/educação , Feminino , Humanos , Masculino
13.
J Transl Med ; 16(1): 343, 2018 12 06.
Artigo em Inglês | MEDLINE | ID: mdl-30522500

RESUMO

BACKGROUND: The mitochondrial DNA (mtDNA) seems to influence in a large number of diseases, including HIV infection. Moreover, there is a substantial inter-individual variability in the CD4+ recovery in HIV-infected patients on combination antiretroviral therapy (cART). Our study aimed to analyze the association between mtDNA haplogroups and CD4+ recovery in HIV-infected patients on cART. METHODS: This is a retrospective study of 324 naïve cART patients with CD4+ < 200 cells/mm3, who were followed-up during 24 months after initiating cART. All patients had undetectable HIV viral load during the follow-up. Besides, we included 141 healthy controls. MtDNA genotyping was performed by using Sequenom's MassARRAY platform. The primary outcome variable was the slope of CD4+ recovery. Patients were stratified into two groups by the median slope value of CD4+ (9.65 CD4+ cells/mm3/month). Logistic regression analyses were performed to calculate the odds of CD4+ recovery according to mtDNA haplogroups. RESULTS: Our study included European HIV-infected patients within the N macro-cluster. The baseline values of CD4+ T-cells were similar between groups of patients stratified by the P50th of the slope of CD4+ T-cells recovery. Patients in the low CD4+ T-cells recovery group were older (p = 0.001), but this variable was included in the multivariate models. When we analyzed the frequencies of mtDNA haplogroups, no significant differences between HIV-infected individuals and healthy controls were found. We did not find any significant association between mtDNA haplogroups and the slope of CD4+ T-cells recovery by linear regression analysis. However, Patients carrying haplogroup H had a higher odds of having a better CD4+ recovery (> 9.65 CD4+ cells/mm3/month) than patients without haplogroup H (p = 0.032). The adjusted logistic regression showed that patients carrying haplogroup H had a higher likelihood of achieving a CD4+ recovery > 9.65 CD4+ cells/mm3/month [adjusted odds ratio (aOR) = 1.75 (95% CI = 1.04; 2.95); p = 0.035]. CONCLUSIONS: European mitochondrial haplogroup H was associated with the improved CD4+ recovery in HIV-infected patients starting cART with CD4+ < 200 cells/mm3.


Assuntos
Terapia Antirretroviral de Alta Atividade , Linfócitos T CD4-Positivos/imunologia , Infecções por HIV/genética , Infecções por HIV/imunologia , Haplótipos/genética , Mitocôndrias/genética , Adulto , Estudos de Casos e Controles , DNA Mitocondrial/genética , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Humanos , Masculino
14.
Hepatology ; 66(2): 344-356, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-28109003

RESUMO

We assessed non-liver-related non-acquired immunodeficiency syndrome (AIDS)-related (NLR-NAR) events and mortality in a cohort of human immunodeficiency virus (HIV)/hepatitis C virus (HCV)-coinfected patients treated with interferon (IFN) and ribavirin (RBV), between 2000 and 2008. The censoring date was May 31, 2014. Cox regression analysis was performed to assess the adjusted hazard rate (HR) of overall death in responders and nonresponders. Fine and Gray regression analysis was conducted to determine the adjusted subhazard rate (sHR) of NLR deaths and NLR-NAR events considering death as the competing risk. The NLR-NAR events analyzed included diabetes mellitus, chronic renal failure, cardiovascular events, NLR-NAR cancer, bone events, and non-AIDS-related infections. The variables for adjustment were age, sex, past AIDS, HIV transmission category, nadir CD4+ T-cell count, antiretroviral therapy, HIV RNA, liver fibrosis, HCV genotype, and exposure to specific anti-HIV drugs. Of the 1,625 patients included, 592 (36%) had a sustained viral response (SVR). After a median 5-year follow-up, SVR was found to be associated with a significant decrease in the hazard of diabetes mellitus (sHR, 0.57; 95% confidence interval [CI], 0.35-0.93; P = 0.024) and decline in the hazard of chronic renal failure close to the threshold of significance (sHR, 0.43; 95% CI, 0.17-1.09; P = 0.075). CONCLUSION: Our data suggest that eradication of HCV in coinfected patients is associated not only with a reduction in the frequency of death, HIV progression, and liver-related events, but also with a reduced hazard of diabetes mellitus and possibly of chronic renal failure. These findings argue for the prescription of HCV therapy in coinfected patients regardless of fibrosis stage. (Hepatology 2017;66:344-356).


Assuntos
Síndrome da Imunodeficiência Adquirida/tratamento farmacológico , Coinfecção/tratamento farmacológico , Hepatite C Crônica/epidemiologia , Interferon-alfa/uso terapêutico , Ribavirina/uso terapêutico , Síndrome da Imunodeficiência Adquirida/diagnóstico , Síndrome da Imunodeficiência Adquirida/epidemiologia , Adulto , Estudos de Coortes , Coinfecção/fisiopatologia , Comorbidade , Bases de Dados Factuais , Quimioterapia Combinada , Feminino , Seguimentos , HIV/efeitos dos fármacos , HIV/isolamento & purificação , Hepacivirus/efeitos dos fármacos , Hepacivirus/isolamento & purificação , Hepatite C Crônica/diagnóstico , Hepatite C Crônica/tratamento farmacológico , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Análise de Regressão , Estudos Retrospectivos , Medição de Risco , Espanha/epidemiologia , Análise de Sobrevida , Fatores de Tempo , Resultado do Tratamento
15.
Clin Infect Dis ; 64(9): 1191-1197, 2017 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-28158588

RESUMO

Background: Thymic function has been mainly analyzed with surrogate peripheral markers affected by peripheral T-cell expansion, making it difficult to assess the role of thymic failure in human immunodeficiency virus (HIV) disease progression. The assay of signal-joint/DßJß T-cell rearrangement excision circles (sj/ß-TREC ratio) overcomes this limitation but has only been assayed in small cohorts. Thus, the aim of this study was to determine the role of thymic function, measured by the sj/ß-TREC ratio, on CD4 T-cell maintenance in prospective HIV cohorts that include patients with a wide age range and different immunological phenotypes. Methods: Seven hundred seventy-four patients including typical progressors, long-term nonprogressors (LTNPs), and vertically HIV-infected subjects were analyzed. Thymic function was quantified in peripheral blood samples using the sj/ß-TREC ratio. Associations between thymic function and CD4 T-cell dynamics and combination antiretroviral therapy (cART) onset were analyzed using linear, logistic, and Cox proportional hazard models. Results: Thymic function failure (sj/ß-TREC ratio <10) was independently associated with HIV progression. In agreement, patients with distinctive high CD4 T-cell levels and low progression rates (vertically HIV-infected patients and LTNPs, including HIV controllers) had significantly higher thymic function levels whereas patients with thymic function failure had lower CD4 T-cell levels, lower nadir, and faster CD4 T-cell decay. Conclusions: This work establishes the relevance of thymic function, measured by sj/ß-TREC ratio, in HIV disease progression by analyzing a large number of patients in 3 cohorts with different HIV disease progression phenotypes. These results support and help to understand the mechanisms underlying the rationale of early cART onset.


Assuntos
Biomarcadores/análise , Linfócitos T CD4-Positivos/imunologia , Infecções por HIV/patologia , Timo/patologia , Adolescente , Adulto , Idoso , Antirretrovirais/uso terapêutico , Contagem de Linfócito CD4 , Criança , Pré-Escolar , Progressão da Doença , Feminino , Infecções por HIV/tratamento farmacológico , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Adulto Jovem
16.
J Stroke Cerebrovasc Dis ; 26(8): 1817-1823, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28522232

RESUMO

BACKGROUND: Time to treatment remains the most important factor in acute ischemic stroke prognosis. We quantified the effect of new interventions reducing in-hospital delays in acute stroke management and assessed its repercussion on door-to-imaging (DTI), imaging-to-needle (ITN), and door-to-needle (DTN) times. METHODS: Prospective registry of consecutive stroke patients who were candidates for reperfusion therapy attended in a tertiary care hospital from February 1 to December 31, 2014. A series of measures aimed at reducing in-hospital delays were implemented. We compared DTI, ITN, and DTN times between patients who underwent the interventions and those who did not. RESULTS: 231 patients. DTI time was lower when personal history was reviewed and tests were ordered before patient arrival (2.5 minutes saved, P = .016) and when electrocardiogram was not made (5.4 minutes saved, P < .001). Not performing a computed tomography angiography and not waiting for coagulation results from laboratory before intravenous thrombolysis (25.5%) reduced ITN time significantly (14 and 12 minutes saved, respectively, P < .001). These interventions remained as independent predictors of a shorter ITN and DTN time. Completing all steps resulted in the lowest DTI and ITN times (13 and 19 minutes, respectively). CONCLUSIONS: Every measure is an important part of a chain focused on saving time in acute stroke: the lowest DTI and ITN times were obtained when all steps were completed. Measures shortening ITN time produced a greater impact on DTN time reduction; therefore, ITN interventions should be considered a critical part of new protocols and guidelines.


Assuntos
Isquemia Encefálica/terapia , Procedimentos Clínicos/organização & administração , Prestação Integrada de Cuidados de Saúde/organização & administração , Fibrinolíticos/administração & dosagem , Avaliação de Processos em Cuidados de Saúde/organização & administração , Acidente Vascular Cerebral/terapia , Terapia Trombolítica , Tempo para o Tratamento/organização & administração , Fluxo de Trabalho , Administração Intravenosa , Idoso , Idoso de 80 Anos ou mais , Isquemia Encefálica/diagnóstico por imagem , Isquemia Encefálica/fisiopatologia , Angiografia Cerebral/métodos , Angiografia por Tomografia Computadorizada , Eficiência Organizacional , Eletrocardiografia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Organizacionais , Equipe de Assistência ao Paciente/organização & administração , Sistema de Registros , Acidente Vascular Cerebral/diagnóstico por imagem , Acidente Vascular Cerebral/fisiopatologia , Centros de Atenção Terciária , Fatores de Tempo , Estudos de Tempo e Movimento , Resultado do Tratamento
17.
Gastroenterol Hepatol ; 40(5): 363-374, 2017 May.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-28109636
18.
BMC Pregnancy Childbirth ; 14: 194, 2014 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-24902487

RESUMO

BACKGROUND: Antiretroviral therapy has created new expectations in the possibilities of procreation for persons living with HIV. Our objectives were to evaluate reproductive desire and to analyze the associated sociodemographic and clinical factors in HIV-infected women in the Spanish AIDS Research Network Cohort (CoRIS). METHODS: A mixed qualitative-quantitative approach was designed. Women of reproductive age (18-45) included in CoRIS were interviewed by phone, and data were collected between November 2010 and June 2012 using a specifically designed questionnaire. Reproductive desire was defined as having a desire to be pregnant at present or having unprotected sex with the purpose of having children or wanting to have children in the near future. RESULTS: Overall, 134 women were interviewed. Median age was 36 years (IQR 31-41), 55% were Spanish, and 35% were unemployed. 84% had been infected with HIV through unprotected sex, with a median time since diagnosis of 4.5 years (IQR 2.9-6.9). Reproductive desire was found in 49% of women and was associated with: 1) Age (women under 30 had higher reproductive desire than those aged 30-39; OR = 4.5, 95% CI 1.4-14.3); 2) having no children vs. already having children (OR = 3.2; 1.3-7.7 3); Being an immigrant (OR = 2.2; 1.0-5.0); and 4) Not receiving antiretroviral treatment (OR = 3.6; 1.1-12.1). The main reasons for wanting children were related to liking children and wanting to form a family. Reasons for not having children were HIV infection, older age and having children already. Half of the women had sought or received information about how to have a safe pregnancy, 87% had disclosed their serostatus to their family circle, and 39% reported having experienced discrimination due to HIV infection. CONCLUSIONS: The HIV-infected women interviewed in CoRIS have a high desire for children, and the factors associated with this desire are not fundamentally different from those of women in the general population. Maternity may even help them face a situation they still consider stigmatized and prefer not to disclose. Health-care protocols for handling HIV-positive women should incorporate specific interventions on sexual and reproductive health to help them fulfill their procreation desire and experience safe pregnancies.


Assuntos
Aspirações Psicológicas , Características da Família , Infecções por HIV/psicologia , Intenção , Gravidez/psicologia , Adolescente , Adulto , Fatores Etários , Antirretrovirais/uso terapêutico , Emigrantes e Imigrantes/psicologia , Feminino , Número de Gestações , Infecções por HIV/tratamento farmacológico , Humanos , Pessoa de Meia-Idade , Educação de Pacientes como Assunto , Espanha , Inquéritos e Questionários , Revelação da Verdade , Adulto Jovem
19.
Artigo em Inglês | MEDLINE | ID: mdl-38735831

RESUMO

INTRODUCTION: Lung cancer (LC) screening detects tumors early. The prospective GESIDA 8815 study was designed to assess the usefulness of this strategy in HIV + people (PLHIV) by performing a low-radiation computed tomography (CT) scan. PATIENTS AND METHODS: 371 heavy smokers patients were included (>20 packs/year), >45 years old and with a CD4+ <200 mm3 nadir. One visit and CT scan were performed at baseline and 4 for follow-up time annually. RESULTS: 329 patients underwent the baseline visit and CT (CT0) and 206 completed the study (CT1 = 285; CT2 = 259; CT3 = 232; CT4 = 206). All were receiving ART. A total >8 mm lung nodules were detected, and 9 early-stage PCs were diagnosed (4 on CT1, 2 on CT2, 1 on CT3 and 2 on CT4). There were no differences between those who developed LC and those who did not in sex, age, CD4+ nadir, previous lung disease, family history, or amount of packets/year. At each visit, other pathologies were diagnosed, mainly COPD, calcified coronary artery and residual tuberculosis lesions. At the end of the study, 38 patients quit smoking and 75 reduced their consumption. Two patients died from LC and 16 from other causes (p = 0.025). CONCLUSIONS: The design of the present study did not allow us to define the real usefulness of the strategy. Adherence to the test progressively decreased over time. The diagnosis of other thoracic pathologies is very frequent. Including smokers in an early diagnosis protocol for LC could help to quit smoking.

20.
Vet Sci ; 11(3)2024 Mar 16.
Artigo em Inglês | MEDLINE | ID: mdl-38535866

RESUMO

Accurate assessment of ram sperm quality is crucial to optimizing assisted reproductive technologies in sheep. However, semen preservation can induce sperm due to osmotic, biochemical, and thermal stress. Stabilizing sperm with a suitable cooling rate and adaptation period to the extender could mitigate these effects for a more reliable evaluation. This study aimed to determine: (1) the best time to assess ram sperm quality, and (2) the factor responsible for the altered state of ram sperm during the first hours of liquid storage. In Experiment 1, ejaculated sperm were diluted and assessed for sperm motility and functionality at four preservation times: 0, 3, 6, and 24 h as sperm damage control. Both sperm motility and functionality improved after 6 h. Experiment 2 investigated the factor responsible for sperm quality change by testing the interactions of seminal plasma and extender with sperm from epididymides independently and in combination. The evaluation of sperm was performed as in Experiment 1. Sperm in groups containing the extender showed altered motility at 0 and 24 h, and lower functionality at 0 h. Thus, we could assume that extender addition initially alters ram sperm, causing sublethal damage that is reversible after 3 to 6 h of semen preservation. In conclusion, ram sperm require an adaptation time of 3 to 6 h to the extender before an accurate quality assessment can be conducted. This has practical implications for reproduction centers, enabling better workflow organization and optimal expression of ram sperm attributes when cervical artificial insemination is routinely performed.

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