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1.
Mol Ther Oncolytics ; 28: 321-333, 2023 Mar 16.
Artigo em Inglês | MEDLINE | ID: mdl-36938543

RESUMO

Oncolytic viruses (OVs) promote the anti-tumor immune response as their replication, and the subsequent lysis of tumor cells, triggers the activation of immune-sensing pathways. Arming OVs by expressing transgenes with the potential to promote immune cell recruitment and activation is an attractive strategy to enhance OVs' therapeutic benefit. For picornaviruses, a family of OVs with clinical experience, the expression of a transgene is limited by multiple factors: genome physical packaging limits, high rates of recombination, and viral-mediated inhibition of transgene secretion. Here, we evaluated strategies for arming Seneca Valley virus (SVV) with relevant immunomodulatory transgenes. Specificially in the contex of arming SVV, we evaluated transgene maximum size and stabiltity, transgene secretion, and the impact of transgene inclusion on viral fitness. We find that SVV is not capable of expressing secreted payloads and has a transgene packaging capacity of ∼10% of viral genome size. To enable transgene expression, we developed SVV replicons with greater transgene size capacity and secretion capabilities. SVV replicons can be packaged in trans by virus in co-infected cells to express immunomodulatory transgenes in surrounding cells, thus providing a means to enhance the potential of this therapeutic to augment the anti-tumor immune response.

2.
J Clin Lipidol ; 17(1): 157-167, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36517413

RESUMO

BACKGROUND: The menopause transition (MT) is linked to adverse changes in lipids/lipoproteins. However, the related contributions of anti-Müllerian hormone (AMH) and estradiol (E2) are not clear. OBJECTIVE: To evaluate the independent associations of premenopausal AMH and E2 levels and their changes with lipids/lipoproteins levels [total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), apolipoprotein B (apoB) and apolipoprotein A-1 (apoA-1)] over the MT. METHODS: SWAN participants who transitioned to menopause without exogenous hormone use, hysterectomy, or bilateral oophorectomy with data available on both exposure and outcomes when they were premenopausal until the 1st visit postmenopausal were studied. RESULTS: The study included 1,440 women (baseline-age:mean±SD=47.4±2.6) with data available from up to 9 visits (1997-2013). Lower premenopausal levels and greater declines in AMH were independently associated with greater TC and HDL-C, whereas lower premenopausal levels and greater declines in E2 were independently associated with greater TG and apo B and lower HDL-C. Greater declines in AMH were independently associated with greater apoA-1, and greater declines in E2 were independently associated with greater TC and LDL-C. CONCLUSIONS: AMH and E2 and their changes over the MT relate differently to lipids/lipoproteins profile in women during midlife. Lower premenopausal and/or greater declines in E2 over the MT were associated with an atherogenic lipid/lipoprotein profile. On the other hand, lower premenopausal AMH and/or greater declines in AMH over the MT were linked to higher apo A-1 and HDL-C; the later found previously to be related to a greater atherosclerotic risk after menopause.


Assuntos
Hormônio Antimülleriano , Lipoproteínas , Feminino , Humanos , Apolipoproteína A-I , Apolipoproteínas B , HDL-Colesterol , LDL-Colesterol , Estradiol , Menopausa , Triglicerídeos , Saúde da Mulher , Adulto , Pessoa de Meia-Idade
3.
Nat Commun ; 13(1): 5907, 2022 10 07.
Artigo em Inglês | MEDLINE | ID: mdl-36207308

RESUMO

The therapeutic effectiveness of oncolytic viruses (OVs) delivered intravenously is limited by the development of neutralizing antibody responses against the virus. To circumvent this limitation and to enable repeated systemic administration of OVs, here we develop Synthetic RNA viruses consisting of a viral RNA genome (vRNA) formulated within lipid nanoparticles. For two Synthetic RNA virus drug candidates, Seneca Valley virus (SVV) and Coxsackievirus A21, we demonstrate vRNA delivery and replication, virus assembly, spread and lysis of tumor cells leading to potent anti-tumor efficacy, even in the presence of OV neutralizing antibodies in the bloodstream. Synthetic-SVV replication in tumors promotes immune cell infiltration, remodeling of the tumor microenvironment, and enhances the activity of anti-PD-1 checkpoint inhibitor. In mouse and non-human primates, Synthetic-SVV is well tolerated reaching exposure well above the requirement for anti-tumor activity. Altogether, the Synthetic RNA virus platform provides an approach that enables repeat intravenous administration of viral immunotherapy.


Assuntos
Neoplasias , Terapia Viral Oncolítica , Vírus Oncolíticos , Picornaviridae , Animais , Anticorpos Neutralizantes , Imunoterapia , Lipossomos , Camundongos , Nanopartículas , Neoplasias/terapia , Vírus Oncolíticos/genética , RNA Viral/genética , Microambiente Tumoral
4.
Blood Adv ; 6(5): 1420-1431, 2022 03 08.
Artigo em Inglês | MEDLINE | ID: mdl-35026839

RESUMO

There are no studies comparing the prognosis for mature T-cell lymphoma (TCL) in people with HIV (PWH) to people without HIV (PWoH) and to AIDS-defining B-cell lymphomas (A-BCLs) in the modern antiretroviral therapy era. North American AIDS Cohort Collaboration on Research and Design and Comprehensive Oncology Measures for Peripheral T-cell Lymphoma Treatment are cohorts that enroll patients diagnosed with HIV and TCL, respectively. In our study, 52, 64, 101, 500, and 246 PWH with histologic confirmation of TCL, primary central nervous system lymphoma, Burkitt's lymphoma, diffuse large B-cell lymphoma (DLBCL), and Hodgkin's lymphoma (HL), respectively, and 450 TCLs without HIV were eligible for analysis. At the time of TCL diagnosis, anaplastic large-cell lymphoma (ALCL) was the most common TCL subtype within PWH. Although PWH with TCL diagnosed between 1996 and 2009 experienced a low 5-year survival probability at 0.23 (95% confidence interval [CI]: 0.13, 0.41), we observed a marked improvement in their survival when diagnosed between 2010 and 2016 (0.69; 95% CI: 0.48, 1; P = .04) in contrast to TCLs among PWoH (0.45; 95% CI: 0.41, 0.51; P = .53). Similarly, PWH with ALCLs diagnosed between 1996 and 2009 were associated with a conspicuously inferior 5-year survival probability (0.17; 95% CI: 0.07, 0.42) and consistently lagged behind A-BCL subtypes such as Burkitt's (0.43; 95% CI:0.33, 0.57; P = .09) and DLBCL (0.17; 95% CI: 0.06, 0.46; P = .11) and behind HL (0.57; 95% CI: 0.50, 0.65; P < .0001). Despite a small number, those diagnosed between 2010 and 2016 experienced a remarkable improvement in survival (0.67; 95% CI: 0.3, 1) in comparison with PWoH (0.76; 95% CI: 0.66, 0.87; P = .58). Thus, our analysis confirms improved overall survival for aggressive B- and T-cell malignancies among PWH in the last decade.


Assuntos
Síndrome da Imunodeficiência Adquirida , Doença de Hodgkin , Linfoma Relacionado a AIDS , Linfoma Difuso de Grandes Células B , Linfoma de Células T Periférico , Doença de Hodgkin/patologia , Humanos , Linfoma Relacionado a AIDS/epidemiologia , Linfoma Difuso de Grandes Células B/complicações , Linfoma Difuso de Grandes Células B/patologia , Linfócitos T/patologia
5.
AIDS ; 36(5): 657-664, 2022 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-34923519

RESUMO

OBJECTIVE: To assess differences in anal cancer incidence between racial/ethnic groups among a clinical cohort of men with HIV who have sex with men. DESIGN: Clinical cohort study. METHODS: We studied men who have sex with men (MSM) in the Centers for AIDS Research Network of Integrated Clinical Systems (CNICS) who initiated antiretroviral therapy (ART) under HIV care in CNICS. We compared anal cancer incidence between Black and non-Black men and calculated hazard ratios controlling for demographic characteristics (age, CNICS site, year of ART initiation), HIV disease indicators (nadir CD4+, peak HIV RNA), and co-infection/behavioral factors including hepatitis B virus (HBV), hepatitis C virus (HCV), tobacco smoking and alcohol abuse. RESULTS: We studied 7473 MSM with HIV who contributed 41 810 person-years of follow-up after initiating ART between 1996 and 2014 in CNICS. Forty-one individuals had an incident diagnosis of anal cancer under observation. Crude rates of anal cancer were 204 versus 61 per 100 000 person-years among Black versus non-Black MSM. The weighted hazard ratio for anal cancer in Black MSM (adjusting for demographics, HIV disease factors, and co-infection/behavioral factors) was 2.37 (95% confidence interval: 1.17, 4.82) compared to non-Black MSM. CONCLUSIONS: In this large multicenter cohort, Black MSM were at significantly increased risk for anal cancer compared to non-Black MSM. Further detailed studies evaluating factors impacting anal cancer incidence and outcomes in Black men with HIV are necessary. Inclusion of more diverse study cohorts may elucidate modifiable factors associated with increased anal cancer risk experienced by Black MSM.


Assuntos
Neoplasias do Ânus , Coinfecção , Infecções por HIV , Minorias Sexuais e de Gênero , Neoplasias do Ânus/epidemiologia , Estudos de Coortes , Coinfecção/complicações , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Homossexualidade Masculina , Humanos , Incidência , Masculino , Fatores de Risco
6.
Cancer Immunol Res ; 9(3): 291-308, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33355229

RESUMO

ONCR-177 is an engineered recombinant oncolytic herpes simplex virus (HSV) with complementary safety mechanisms, including tissue-specific miRNA attenuation and mutant UL37 to inhibit replication, neuropathic activity, and latency in normal cells. ONCR-177 is armed with five transgenes for IL12, FLT3LG (extracellular domain), CCL4, and antagonists to immune checkpoints PD-1 and CTLA-4. In vitro assays demonstrated that targeted miRNAs could efficiently suppress ONCR-177 replication and transgene expression, as could the HSV-1 standard-of-care therapy acyclovir. Although ONCR-177 was oncolytic across a panel of human cancer cell lines, including in the presence of type I IFN, replication was suppressed in human pluripotent stem cell-derived neurons, cardiomyocytes, and hepatocytes. Dendritic cells activated with ONCR-177 tumor lysates efficiently stimulated tumor antigen-specific CD8+ T-cell responses. In vivo, biodistribution analyses suggested that viral copy number and transgene expression peaked approximately 24 to 72 hours after injection and remained primarily within the injected tumor. Intratumoral administration of ONCR-177 mouse surrogate virus, mONCR-171, was efficacious across a panel of syngeneic bilateral mouse tumor models, resulting in partial or complete tumor regressions that translated into significant survival benefits and to the elicitation of a protective memory response. Antitumor effects correlated with local and distant intratumoral infiltration of several immune effector cell types, consistent with the proposed functions of the transgenes. The addition of systemic anti-PD-1 augmented the efficacy of mONCR-171, particularly for abscopal tumors. Based in part upon these preclinical results, ONCR-177 is being evaluated in patients with metastatic cancer (ONCR-177-101, NCT04348916).


Assuntos
Herpesvirus Humano 1/imunologia , Inibidores de Checkpoint Imunológico/uso terapêutico , Neoplasias/terapia , Terapia Viral Oncolítica/métodos , Vírus Oncolíticos/imunologia , Animais , Linhagem Celular Tumoral/transplante , Terapia Combinada/métodos , Modelos Animais de Doenças , Feminino , Herpesvirus Humano 1/genética , Humanos , Inibidores de Checkpoint Imunológico/farmacologia , Injeções Intralesionais , Camundongos , MicroRNAs/genética , MicroRNAs/imunologia , Neoplasias/imunologia , Neoplasias/patologia , Vírus Oncolíticos/genética , Receptor de Morte Celular Programada 1/antagonistas & inibidores , Receptor de Morte Celular Programada 1/metabolismo , Distribuição Tecidual , Transgenes/genética , Transgenes/imunologia , Proteínas Estruturais Virais/genética , Proteínas Estruturais Virais/imunologia , Replicação Viral/genética
7.
Clin Infect Dis ; 73(7): e2334-e2337, 2021 10 05.
Artigo em Inglês | MEDLINE | ID: mdl-33383586

RESUMO

From 2005 to 2018, among 32013 adults with human immunodeficiency virus entering care, median time to antiretroviral therapy (ART) prescription declined from 69 to 6 days, CD4 count at entry into care increased from 300 to 362 cells/µL, and CD4 count at ART prescription increased from 160 to 364 cells/µL.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Adulto , Fármacos Anti-HIV/uso terapêutico , Terapia Antirretroviral de Alta Atividade , Contagem de Linfócito CD4 , HIV , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Humanos , Prescrições , Estados Unidos/epidemiologia
8.
PLoS One ; 15(8): e0237430, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32841307

RESUMO

BACKGROUND & AIMS: Given ongoing challenges in non-invasive non-alcoholic liver disease (NAFLD) diagnosis, we sought to validate an ALT-based NAFLD phenotype using measures readily available in electronic health records (EHRs) and population-based studies by leveraging the clinical and genetic data in the Million Veteran Program (MVP), a multi-ethnic mega-biobank of US Veterans. METHODS: MVP participants with alanine aminotransferases (ALT) >40 units/L for men and >30 units/L for women without other causes of liver disease were compared to controls with normal ALT. Genetic variants spanning eight NAFLD risk or ALT-associated loci (LYPLAL1, GCKR, HSD17B13, TRIB1, PPP1R3B, ERLIN1, TM6SF2, PNPLA3) were tested for NAFLD associations with sensitivity analyses adjusting for metabolic risk factors and alcohol consumption. A manual EHR review assessed performance characteristics of the NAFLD phenotype with imaging and biopsy data as gold standards. Genetic associations with advanced fibrosis were explored using FIB4, NAFLD Fibrosis Score and platelet counts. RESULTS: Among 322,259 MVP participants, 19% met non-invasive criteria for NAFLD. Trans-ethnic meta-analysis replicated associations with previously reported genetic variants in all but LYPLAL1 and GCKR loci (P<6x10-3), without attenuation when adjusted for metabolic risk factors and alcohol consumption. At the previously reported LYPLAL1 locus, the established genetic variant did not appear to be associated with NAFLD, however the regional association plot showed a significant association with NAFLD 279kb downstream. In the EHR validation, the ALT-based NAFLD phenotype yielded a positive predictive value 0.89 and 0.84 for liver biopsy and abdominal imaging, respectively (inter-rater reliability (Cohen's kappa = 0.98)). HSD17B13 and PNPLA3 loci were associated with advanced fibrosis. CONCLUSIONS: We validate a simple, non-invasive ALT-based NAFLD phenotype using EHR data by leveraging previously established NAFLD risk-associated genetic polymorphisms.


Assuntos
Alanina Transaminase/metabolismo , Hepatopatia Gordurosa não Alcoólica/patologia , 17-Hidroxiesteroide Desidrogenases/genética , Abdome/diagnóstico por imagem , Proteínas Adaptadoras de Transdução de Sinal/genética , Idoso , Alanina Transaminase/genética , Registros Eletrônicos de Saúde , Feminino , Loci Gênicos , Predisposição Genética para Doença , Variação Genética , Humanos , Lipase/genética , Fígado/patologia , Lisofosfolipase/genética , Masculino , Proteínas de Membrana/genética , Pessoa de Meia-Idade , Hepatopatia Gordurosa não Alcoólica/etnologia , Hepatopatia Gordurosa não Alcoólica/genética , Fenótipo , Fatores de Risco , Veteranos
9.
J Bone Miner Res ; 34(1): 59-66, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30138538

RESUMO

27-Hydroxycholesterol (27HC) is a purported, novel endogenous SERM. In animal models, 27HC has an anti-estrogen effect in bone, and 17ß-estradiol mitigates this effect. 27HC in relation to fracture risk has not been investigated in humans. Depending on the level of bioavailable 17ß-estradiol (bioE2 ), 27HC may increase fracture risk in postmenopausal women and modify the fracture risk reduction from menopausal hormone therapy (MHT). To test these a priori hypotheses, we conducted a nested case-cohort study of 868 postmenopausal women within the Women's Health Initiative Hormone Therapy (WHI-HT) trials. The WHI-HT tested conjugated equine estrogens versus placebo and separately conjugated equine estrogens plus progestin versus placebo. Fracture cases were 442 women who had an adjudicated incident hip or clinical vertebral fracture during the WHI-HT follow-up. The subcohort included 430 women randomly selected at WHI-HT baseline, four of whom had a subsequent fracture. Of the 868 women, 266 cases and 219 non-cases were assigned to the placebo arms. Cox models estimated hazard ratios for incident fracture in relation to pre-randomization circulating levels of 27HC and 27HC/bioE2 molar ratio. Models adjusted for age, race/ethnicity, total cholesterol, bioE2 , sex hormone-binding globulin, 25-hydroxyvitamin D, diabetes, osteoporosis, prior MHT use, BMI, falls history, and prior fracture. In women assigned to placebo arms, those in the middle and the highest tertiles of 27HC/bioE2 had an up to 1.9-fold (95% confidence intervals, 1.25 to 2.99) greater risk of fracture than women in the lowest tertile. In women assigned to MHT arms, fracture risk increased with continuous 27HC/bioE2 levels but not with categorical levels. 27HC levels alone were not associated with fracture risk. 27HC and 27HC/bioE2 did not modify the fracture risk reduction from MHT. In postmenopausal women, circulating levels of 27HC relative to bioE2 may identify those at increased risk of fracture. © 2018 American Society for Bone and Mineral Research.


Assuntos
Fraturas do Quadril/sangue , Hidroxicolesteróis/sangue , Pós-Menopausa/sangue , Moduladores Seletivos de Receptor Estrogênico/sangue , Fraturas da Coluna Vertebral/sangue , Idoso , Estudos de Casos e Controles , Estrogênios Conjugados (USP)/farmacologia , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Progestinas/farmacologia , Estudos Prospectivos , Fatores de Risco
10.
Bone ; 120: 321-326, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30448304

RESUMO

PURPOSE: Osteoblasts and their precursors support hematopoiesis in the bone marrow. We hypothesized that declines in Hgb levels are associated with bone mineral density (BMD). METHODS: The Cardiovascular Health Study is a prospective longitudinal study that enrolled 5888 community-dwelling adults aged >65 years and measured hemoglobin twice, in 1989-90 and 1992-93, as well as BMD by dual-energy X-ray absorptiometry (DXA) in 1994-95. In a subset of 1513 men and women with a Hgb in 1992-93 and BMD, we used linear regression to estimate associations of Hgb (per standard deviation (SD)) with total hip (TH), lumbar spine (LS) and total body (TB) BMD, and used Poisson regression to estimate associations of anemia (in 1992-93; Hgb <13 g/dL in men; <12 g/dL in women) with "low BMD" defined as T-score less than -1 at the TH. In 1277 participants with Hgb measured on average 2.9 years apart and BMD, we used linear regression to estimate the associations of annualized change in Hgb with TH, LS and TB BMD. All models included age, sex, study-site, race, smoking, alcohol use, weight, height, steroid use, physical activity score, self-reported health, previous cardiovascular disease and prior anti-fracture medication use. RESULTS: No significant association was observed between Hgb, measured a mean 2.2 years prior to BMD, and BMD at the TH and LS in men (TH beta = -0.60 [x 10-2 g/cm2per 1.1 g/dL Hgb], 95% CI: -1.88 to 0.68; LS beta = -1.69, 95% CI: -3.83 to 0.45) or women (TH beta = -0.49 [x 10-2 g/cm2per 1.3 g/dL Hgb], 95% CI: -1.57 to 0.59; LS beta = -0.40, 95% CI: -2.57 to 1.76). Anemia was not observed to be significantly associated with low BMD in men (RR = 0.99, 95% CI: 0.72-1.40) nor women (RR = 0.98, 95% CI: 0.82-1.17). The mean change in Hgb was a loss of 0.06 g/dL/year (SD = 0.32). Change in Hgb was not observed to be significantly associated with BMD in men (TH beta = -0.55[x 10-2 g/cm2per 1 g/dL annualized Hgb change], 95% CI: -4.28 to 3.19; LS beta = 0.63, 95% CI: -5.38 to 6.65) or women (TH beta = 0.92, 95% CI: -1.96 to 3.79; LS beta = -1.77, 95% CI: -7.52 to 3.98). No significant association was observed between anemia and low bone density by T-score in men and women. CONCLUSIONS: These findings support neither the hypothesis that low Hgb prior to bone density or decreases in Hgb are associated with bone density in older community-dwelling adults nor the use of Hgb level as a case-finding tool to prompt BMD measurement.


Assuntos
Densidade Óssea/fisiologia , Sistema Cardiovascular/metabolismo , Hemoglobinas/metabolismo , Idoso , Feminino , Humanos , Contagem de Leucócitos , Masculino
11.
J Thyroid Res ; 2018: 8765369, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30046434

RESUMO

Increased risk of second primary malignancy (SPM) in papillary thyroid cancer (PTC) has been reported. Here, we present the most updated incidence rates of second primary malignancy from original diagnosis of PTC by using the data from the Surveillance, Epidemiology, and End Results. In this cohort, 3,200 patients developed SPM, a substantially higher number than in the reference population of 2,749 with observed to expected ratio (O/E) of 1.16 (95% CI; 1.12-1.21). Bone and joint cancer had the highest O/E ratio of 4.26 (95% confidence interval [CI] 2.33-7.15) followed by salivary gland (O/E 4.15; 95% CI 2.76-6.0) and acute lymphocytic leukemia (O/E 3.98; 95% CI 2.12-6.8). Mean age at the diagnosis of SPM was 64.4 years old. Interestingly, incidence of colorectal cancer was lower in thyroid cancer survivors compared to general population (large intestine O/E 0.3; 95% CI 0.06-0.88, rectum O/E 0.6; 95% CI 0.41-0.85); however, this was not observed in patients who underwent radiation therapy. The incidence of SPM at all sites was higher during 2000-2012 compared to 1992-1999 (O/E 1.24 versus 1.10). Surprisingly, patients with micropapillary cancer had higher incidence of SPM than counterparts with a larger tumor in radiation group (O/E of 1.40 versus 1.15). O/E of all cancers were higher in males compared to females with O/E of 1.41 versus 1.17 during the period of 2000-2012. Diagnosis of PTC before age 50, especially at age 30-34, was associated with higher incidence of overall SPM (age 30-34; O/E 1.43; 95% CI; 1.19-1.71). Efficient monitoring strategies that include age at the time of thyroid cancer diagnosis, exposure to radiation, gender, and genetic susceptibility may successfully detect SPM earlier in the disease course. This is especially important given the excellent prognosis of the initial thyroid cancer itself.

12.
PLoS One ; 13(6): e0197665, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29870537

RESUMO

BACKGROUND: Cancer causes significant morbidity and mortality among HIV patients in the US due to extended life expectancy with access to effective antiretroviral therapy. Low, detectable HIV RNA has been studied as a risk factor for adverse health outcomes, but its clinical impact on cancer risk remains unclear. The objective of this study was to determine whether HIV RNA <1,000 copies/mL six months after starting therapy was associated with 10-year first cancer risk. METHODS: We followed 7,515 HIV therapy initiators from a US-based multicenter clinical cohort from 1998 to 2014. We used nonparametric multiple imputation to account for viral loads that fell below assay detection limits, and categorized viral loads six months after therapy initiation into four groups: <20, 20-199, 200-999, and >999 copies/mL. We calculated estimates of the cumulative incidence of cancer diagnosis, accounting for death as a competing event. Inverse probability of exposure and censoring weights were used to control for confounding and differential loss to follow up, respectively. RESULTS: Crude 10-year first cancer risk in the study sample was 7.03% (95% CI: 6.08%, 7.98%), with the highest risk observed among patients with viral loads between 200 and 999 copies/mL six months after ART initiation (10.7%). After controlling for baseline confounders, 10-year first cancer risk was 6.90% (95% CI: 5.69%, 8.12%), and was similar across viral load categories. CONCLUSION: Overall risk of first cancer was not associated with incomplete viral suppression; however, cancer remains a significant threat to HIV patients after treatment initiation. As more HIV patients gain access to treatment in the current "treat all" era, occurrences of incomplete viral suppression will be observed more frequently in clinical practice, which supports continued study of the role of low-level HIV RNA on cancer development.


Assuntos
Infecções por HIV/tratamento farmacológico , Neoplasias/sangue , RNA Viral/sangue , Carga Viral/efeitos dos fármacos , Adulto , Fármacos Anti-HIV/uso terapêutico , Terapia Antirretroviral de Alta Atividade/efeitos adversos , Vírus Defeituosos/patogenicidade , Feminino , Infecções por HIV/complicações , Infecções por HIV/genética , Infecções por HIV/virologia , HIV-1/patogenicidade , Humanos , Pessoa de Meia-Idade , Neoplasias/etiologia , Neoplasias/genética , Neoplasias/virologia , Fatores de Risco
13.
Sci Rep ; 8(1): 6564, 2018 04 26.
Artigo em Inglês | MEDLINE | ID: mdl-29700384

RESUMO

Platelets, components of hemostasis, when present in excess (>400 K/µL, thrombocytosis) have also been associated with worse outcomes in lung, ovarian, breast, renal, and colorectal cancer patients. Associations between thrombocytosis and cancer outcomes have been made mostly from single-time-point studies, often at the time of diagnosis. Using laboratory data from the Department of Veterans Affairs (VA), we examined the potential benefits of using longitudinal platelet counts in improving patient prognosis predictions. Ten features (summary statistics and engineered features) were derived to describe the platelet counts of 10,000+ VA lung, prostate, and colon cancer patients and incorporated into an age-adjusted LASSO regression analysis to determine feature importance, and predict overall or relapse-free survival, which was compared to the previously used approach of monitoring for thrombocytosis near diagnosis (Postdiag AG400 model). Temporal features describing acute platelet count increases/decreases were found to be important in cancer survival and relapse-survival that helped stratify good and bad outcomes of cancer patient groups. Predictions of overall and relapse-free survival were improved by up to 30% compared to the Postdiag AG400 model. Our study indicates the association of temporally derived platelet count features with a patients' prognosis predictions.


Assuntos
Neoplasias do Colo/sangue , Neoplasias do Colo/mortalidade , Neoplasias Pulmonares/sangue , Neoplasias Pulmonares/mortalidade , Contagem de Plaquetas , Neoplasias da Próstata/sangue , Neoplasias da Próstata/mortalidade , Adulto , Idoso , Biomarcadores , Neoplasias do Colo/diagnóstico , Neoplasias do Colo/terapia , Comorbidade , Humanos , Estimativa de Kaplan-Meier , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/terapia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Razão de Chances , Prognóstico , Neoplasias da Próstata/diagnóstico , Neoplasias da Próstata/terapia , Estudos Retrospectivos
14.
Environ Int ; 116: 239-247, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29698900

RESUMO

BACKGROUND: Mosaic loss of chromosome Y (mLOY) can occur in a fraction of cells as men age, which is potentially linked to increased mortality risk. Smoking is related to mLOY; however, the contribution of air pollution is unclear. OBJECTIVE: We investigated whether exposure to outdoor air pollution, age, and smoking were associated with mLOY. METHODS: We analyzed baseline (1989-1993) blood samples from 933 men ≥65 years of age from the prospective Cardiovascular Health Study. Particulate matter ≤10 µm (PM10), carbon monoxide, nitrogen dioxide, sulfur dioxide, and ozone data were obtained from the U.S. EPA Aerometric Information Retrieval System for the year prior to baseline. Inverse-distance weighted air monitor data were used to estimate each participants' monthly residential exposure. mLOY was detected with standard methods using signal intensity (median log-R ratio (mLRR)) of the male-specific chromosome Y regions from Illumina array data. Linear regression models were used to evaluate relations between mean exposure in the prior year, age, smoking and continuous mLRR. RESULTS: Increased PM10 was associated with mLOY, namely decreased mLRR (p-trend = 0.03). Compared with the lowest tertile (≤28.5 µg/m3), the middle (28.5-31.0 µg/m3; ß = -0.0044, p = 0.09) and highest (≥31 µg/m3; ß = -0.0054, p = 0.04) tertiles had decreased mLRR, adjusted for age, clinic, race/cohort, smoking status and pack-years. Additionally, increasing age (ß = -0.00035, p = 0.06) and smoking pack-years (ß = -0.00011, p = 1.4E-3) were associated with decreased mLRR, adjusted for each other and race/cohort. No significant associations were found for other pollutants. CONCLUSIONS: PM10 may increase leukocyte mLOY, a marker of genomic instability. The sample size was modest and replication is warranted.


Assuntos
Poluentes Atmosféricos/análise , Poluição do Ar/estatística & dados numéricos , Cromossomos Humanos Y , Mosaicismo/estatística & dados numéricos , Aberrações dos Cromossomos Sexuais/estatística & dados numéricos , Idoso , Humanos , Masculino , Estudos Prospectivos
15.
Cancer Epidemiol Biomarkers Prev ; 26(12): 1730-1735, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-28939589

RESUMO

Background: Obesity and the metabolic syndrome (MetS) have both been linked to increased risk of postmenopausal breast cancer; however, their relative contributions are poorly understood.Methods: We examined the association of metabolic phenotypes of obesity defined by presence of the MetS (yes and no) and body mass index (BMI; normal, overweight, obese) with risk of postmenopausal breast cancer in a prospective analysis of a cohort of postmenopausal women (n ∼ 21,000) with baseline measurements of blood glucose, triglycerides, HDL-cholesterol, blood pressure, waist circumference, and BMI. Women were classified into 6 metabolic obesity phenotypes according to their BMI (18.5-<25.0, 25.0-<30.0, ≥30.0 kg/m2) and presence of the MetS (≥3 of the following: waist circumference ≥88 cm, triglycerides ≥150 mg/dL, HDL-C <50 mg/dL, glucose ≥100 mg/dL, and systolic/diastolic blood pressure ≥130/85 mmHg or treatment for hypertension). HRs for incident breast cancer and 95% confidence intervals (95% CI) were estimated using Cox proportional hazards models.Results: Over 15 years of follow-up, 1,176 cases of invasive breast cancer were diagnosed. Obesity, regardless of metabolic health, was associated with increased risk of breast cancer. Being obese and metabolically unhealthy was associated with the highest risk: HR, 1.62; 95% CI, 1.33-1.96. These associations were stronger in women who had never used hormone therapy.Conclusions: Our findings suggest that both obesity and metabolic dysregulation are associated with breast cancer risk.Impact: Beyond BMI, metabolic health should be considered a clinically relevant and modifiable risk factor for breast cancer. Cancer Epidemiol Biomarkers Prev; 26(12); 1730-5. ©2017 AACR.


Assuntos
Neoplasias da Mama/epidemiologia , Síndrome Metabólica/epidemiologia , Obesidade/epidemiologia , Pós-Menopausa/metabolismo , Idoso , Antineoplásicos Hormonais/uso terapêutico , Índice de Massa Corporal , Neoplasias da Mama/terapia , Cálcio/uso terapêutico , Dieta com Restrição de Gorduras , Feminino , Humanos , Síndrome Metabólica/terapia , Pessoa de Meia-Idade , Fenótipo , Prevalência , Estudos Prospectivos , Fatores de Risco , Estados Unidos/epidemiologia , Vitamina D/uso terapêutico
16.
Diabetes Care ; 40(4): 529-537, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28122840

RESUMO

OBJECTIVE: High triglyceride (TG) levels and low HDL cholesterol (HDL-C) levels are risk factors for cardiovascular disease. It is unclear whether this relationship depends on glycemic dysregulation, sex, or LDL cholesterol (LDL-C) level. RESEARCH DESIGN AND METHODS: We studied 3,216 participants (40% men, 41% with diabetes) who were free of cardiovascular disease at baseline in a community-based, prospective cohort of American Indians (median follow-up 17.7 years). Cox models estimated hazard ratios (HRs) and 95% CIs for incident ischemic stroke and coronary heart disease (CHD) in relation to combined TG and HDL-C status, where a fasting TG level ≥150 mg/dL was "high" and a fasting HDL-C level <40 mg/dL for men (<50 mg/dL for women) was "low." Models included age, sex, BMI, smoking, diabetes, fasting LDL-C level, antihypertensive medications, physical activity, estimated glomerular filtration rate, and urinary albumin-to-creatinine ratio. RESULTS: Participants with high TG and low HDL levels had a 1.32-fold greater HR (95% CI 1.06-1.64) for CHD than those with normal TG and normal HDL levels. It was observed in participants with diabetes, but not in those without diabetes, that high TG plus low HDL levels were associated with a 1.54-fold greater HR (95% CI 1.15-2.06) for CHD (P value for interaction = 0.003) and a 2.13-fold greater HR (95% CI 1.06-4.29) for stroke (P value for interaction = 0.060). High TG and low HDL level was associated with CHD risk in participants with an LDL-C level of ≥130 mg/dL, but this was not observed in those participants with lower LDL-C levels. Sex did not appear to modify these associations. CONCLUSIONS: Adults with both high TG and low HDL-C, particularly those with diabetes, have increased risks of incident CHD and stroke. In particular, those with an LDL-C level ≥130 mg/dL may have an increased risk of incident stroke.


Assuntos
HDL-Colesterol/sangue , LDL-Colesterol/sangue , Doença da Artéria Coronariana/sangue , Diabetes Mellitus/sangue , Dislipidemias/sangue , Acidente Vascular Cerebral/sangue , Triglicerídeos/sangue , Idoso , Glicemia/metabolismo , Doença da Artéria Coronariana/etiologia , Dislipidemias/complicações , Dislipidemias/diagnóstico , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Estudos Prospectivos , Fatores de Risco , Acidente Vascular Cerebral/etiologia
17.
AIDS Behav ; 21(6): 1699-1708, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27380390

RESUMO

PHQ-9 data from persons living with HIV (PLWH, n = 4099) being screened for depression in three clinics in the southeastern USA were used to determine the prevalence of suicidal ideation (SI). SI was reported by 352 (8.6 %); associated with <3 years since HIV diagnosis (1.69; 95 %CI 1.35, 2.13), and HIV RNA >50 copies/ml (1.70, 95 %CI 1.35, 2.14). Data from PLWH enrolled in a depression treatment study were used to determine the association between moderate-to-high risk SI (severity) and SI frequency reported on PHQ-9 screening. Over forty percent of persons reporting that SI occurred on "more than half the days" (by the PHQ-9) were assessed as having a moderate-to-high risk for suicide completion during the Mini International Neuropsychiatric Interview. SI, including moderate-to-high risk SI, remains a significant comorbid problem for PLWH who are not fully stabilized in care (as indicated by detectable HIV RNA or HIV diagnosis for less than 3 years).


Assuntos
Depressão/diagnóstico , Transtorno Depressivo/diagnóstico , Ideação Suicida , Suicídio/estatística & dados numéricos , Adulto , Comorbidade , Depressão/epidemiologia , Depressão/psicologia , Transtorno Depressivo/epidemiologia , Transtorno Depressivo/psicologia , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/psicologia , Humanos , Masculino , Programas de Rastreamento , Pessoa de Meia-Idade , Prevalência , Escalas de Graduação Psiquiátrica , Inquéritos e Questionários , Estados Unidos/epidemiologia
18.
World Neurosurg ; 100: 551-556, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27923758

RESUMO

BACKGROUND: Osteoporosis is defined as bone mineral density. METHODS: A PubMed literature review was performed to review preclinical and clinical evidence for the use of teriparatide in osteoporotic patients undergoing spine fusion surgery. RESULTS: Preclinical studies in animal models show that teriparatide increases spinal fusion rates. Early clinical studies show that teriparatide both increases spinal fusion rates and decreases hardware loosening in the setting of postmenopausal osteoporosis. CONCLUSION: Ongoing additional trials will help formulate preoperative screening recommendations, determine the optimal duration of preoperative and postoperative teriparatide treatment, and investigate its utility in men.


Assuntos
Consolidação da Fratura/efeitos dos fármacos , Osteoporose/tratamento farmacológico , Fraturas da Coluna Vertebral/cirurgia , Fusão Vertebral/métodos , Teriparatida/administração & dosagem , Animais , Conservadores da Densidade Óssea/administração & dosagem , Conservadores da Densidade Óssea/efeitos adversos , Conservadores da Densidade Óssea/farmacologia , Medicina Baseada em Evidências , Humanos , Osteoporose/diagnóstico , Pré-Medicação , Fraturas da Coluna Vertebral/tratamento farmacológico , Teriparatida/farmacologia , Resultado do Tratamento
19.
Fertil Steril ; 106(5): 1157-1164, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27445196

RESUMO

OBJECTIVE: To assess the longitudinal relationship of environmental tobacco smoke (ETS) exposure during midlife, and its interaction with active smoking, with the risk of late-diagnosis incident uterine fibroids during the menopausal transition. DESIGN: Thirteen-year prospective cohort study. SETTING: Not applicable. PATIENT(S): Community-based, multiracial/ethnic cohort of 2,575 women aged 42 to 52 years at baseline, undergoing the menopausal transition. INTERVENTION(S): Questionnaire and blood draws. MAIN OUTCOME MEASURE(S): Discrete-time proportional odds models were used to estimate the conditional odds ratio (OR) and 95% confidence interval (CI) of incident fibroids, adjusted for menopausal status, race/ethnicity, study site, age, education, estradiol levels, sex hormone use, body mass index, timing of blood draw, age at menarche, alcohol use, and smoking status and pack-years. RESULT(S): As part of SWAN, at each near-annual study visit, ETS exposure, smoking, and fibroid occurrence were self-reported via questionnaire, and blood draws were collected. Women who were exposed to ETS (≥1 person-hour/week) had 1.28 (95% CI, 1.03, 1.60) times the adjusted odds of incident fibroids in the ensuing year compared the unexposed. The odds were elevated in never smokers (adjusted OR 1.34; 95% CI, 1.06, 1.70) and former smokers (adjusted OR 2.57; 95% CI, 1.05, 7.23). CONCLUSION(S): In midlife, ETS exposure was associated with an increased risk of late-diagnosis incident fibroids in women undergoing the menopausal transition.


Assuntos
Exposição por Inalação/efeitos adversos , Leiomioma/epidemiologia , Fumar/efeitos adversos , Poluição por Fumaça de Tabaco/efeitos adversos , Neoplasias Uterinas/epidemiologia , Saúde da Mulher , Adulto , Distribuição de Qui-Quadrado , Estradiol/sangue , Feminino , Humanos , Histerectomia , Incidência , Leiomioma/sangue , Leiomioma/diagnóstico , Leiomioma/cirurgia , Estudos Longitudinais , Menopausa/sangue , Pessoa de Meia-Idade , Análise Multivariada , Razão de Chances , Estudos Prospectivos , Medição de Risco , Fatores de Risco , Fumar/epidemiologia , Inquéritos e Questionários , Fatores de Tempo , Estados Unidos/epidemiologia , Neoplasias Uterinas/sangue , Neoplasias Uterinas/diagnóstico , Neoplasias Uterinas/cirurgia
20.
J Clin Endocrinol Metab ; 101(1): 123-30, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26670127

RESUMO

CONTEXT: Estrogen has been implicated in the development of uterine fibroids. However, the contribution of androgen in women is unknown. OBJECTIVE: Our objective was to assess the longitudinal relations of circulating androgens and estradiol (E2) and their joint effects to the risk of developing fibroids. DESIGN: This is a 13-year longitudinal study in the Study of Women's Health Across the Nation. SETTING: This study was conducted in seven sites across the United States (1997-2013). PARTICIPANTS: At baseline, 3240 pre- or early peri-menopausal women with an intact uterus, ages 45-52 years were included; 43.6% completed the follow-up. There were 512 incident and 478 recurrent fibroid cases. EXPOSURES: We measured near-annual time-varying serum levels of bioavailable E2 and bioavailable T, dichotomized at the median (high vs low). MAIN OUTCOMES AND MEASURES: We estimated the conditional odds ratio (OR) of fibroids in the ensuing year using discrete-time proportional odds models adjusted for race/ethnicity/site, age, body mass index, menopausal stage, reproductive factors, smoking, timing of blood draw, and FSH. RESULTS: Women with high T had a statistically significant increased risk of incident fibroids (OR, 1.33; 95% confidence interval [CI], 1.01-1.76; P = .04), but not recurrent fibroids. This risk was further elevated in those with high T and E2 (OR, 1.52; 95% CI, 1.07-2.17; P = .02). High E2 and T was associated with lower risk of recurrent fibroids (OR, 0.50; 95% CI, 0.26-0.96; P = .04). CONCLUSIONS: High T with high E2 was associated with an elevated risk of incident fibroids in midlife women who never reported fibroids before baseline. Conversely, the risk of recurrent fibroids was mitigated in women with high E2 and high T.


Assuntos
Hormônios Esteroides Gonadais/sangue , Leiomioma/sangue , Leiomioma/epidemiologia , Saúde da Mulher , Adulto , Androgênios/sangue , Estradiol/sangue , Feminino , Seguimentos , Inquéritos Epidemiológicos , Humanos , Estudos Longitudinais , Pessoa de Meia-Idade , Recidiva , Medição de Risco , Fumar/efeitos adversos , Fumar/epidemiologia , Estados Unidos/epidemiologia , Mulheres
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