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2.
Int J Mol Sci ; 24(14)2023 Jul 16.
Artigo em Inglês | MEDLINE | ID: mdl-37511288

RESUMO

Neonatal seizures are commonly associated with acute perinatal brain injury, while understanding regarding the downstream molecular pathways related to seizures remains unclear. Furthermore, effective treatment and reliable biomarkers are still lacking. Post-translational modifications can contribute to changes in protein function, and post-translational citrullination, which is caused by modification of arginine to citrulline via the calcium-mediated activation of the peptidylarginine deiminase (PAD) enzyme family, is being increasingly linked to neurological injury. Extracellular vesicles (EVs) are lipid-bilayer structures released from cells; they can be isolated from most body fluids and act as potential liquid biomarkers for disease conditions and response to treatment. As EVs carry a range of genetic and protein cargo that can be characteristic of pathological processes, the current study assessed modified citrullinated protein cargo in EVs isolated from plasma and CSF in a piglet neonatal seizure model, also following phenobarbitone treatment. Our findings provide novel insights into roles for PAD-mediated changes on EV signatures in neonatal seizures and highlight the potential of plasma- and CSF-EVs to monitor responses to treatment.


Assuntos
Citrulinação , Vesículas Extracelulares , Recém-Nascido , Humanos , Animais , Suínos , Desiminases de Arginina em Proteínas/metabolismo , Processamento de Proteína Pós-Traducional , Biomarcadores/metabolismo , Vesículas Extracelulares/metabolismo , Convulsões/metabolismo
3.
Prostate Cancer Prostatic Dis ; 26(3): 596-601, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37193776

RESUMO

BACKGROUND: Patient outcomes were assessed based on a pre-biopsy ExoDx Prostate (EPI) score at 2.5 years of the 5-year follow-up of ongoing prostate biopsy Decision Impact Trial of the ExoDx Prostate (IntelliScore). METHODS: Prospective, blinded, randomized, multisite clinical utility study was conducted from June 2017 to May 2018 (NCT03235687). Urine samples were collected from 1049 men (≥50 years old) with a PSA 2-10 ng/mL being considered for a prostate biopsy. Patients were randomized to EPI vs. standard of care (SOC). All had an EPI test, but only EPI arm received results during biopsy decision process. Clinical outcomes, time to biopsy and pathology were assessed among low (<15.6) or high (≥15.6) EPI scores. RESULTS: At 2.5 years, 833 patients had follow-up data. In the EPI arm, biopsy rates remained lower for low-risk EPI scores than high-risk EPI scores (44.6% vs 79.0%, p < 0.001), whereas biopsy rates were identical in SOC arm regardless of EPI score (59.6% vs 58.8%, p = 0.99). Also in the EPI arm, the average time from EPI testing to first biopsy was longer for low-risk EPI scores compared to high-risk EPI scores (216 vs. 69 days; p < 0.001). Similarly, the time to first biopsy was longer with EPI low-risk scores in EPI arm compared to EPI low-risk scores in SOC arm (216 vs 80 days; p < 0.001). At 2.5 years, patients with low-risk EPI scores from both arms had less HGPC than high-risk EPI score patients (7.9% vs 26.8%, p < 0.001) and the EPI arm found 21.8% more HGPC than the SOC arm. CONCLUSIONS: This follow-up analysis captures subsequent biopsy outcomes and demonstrates that men receiving EPI low-risk scores (<15.6) significantly defer the time to first biopsy and remain at a very low pathologic risk by 2.5-years after the initial study. The EPI test risk stratification identified low-risk patients that were not found with the SOC.


Assuntos
Próstata , Neoplasias da Próstata , Masculino , Humanos , Pessoa de Meia-Idade , Próstata/patologia , Neoplasias da Próstata/patologia , Antígeno Prostático Específico , Estudos Prospectivos , Biópsia
4.
Reprod Sci ; 28(3): 857-864, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-32789572

RESUMO

Successful pregnancy or its outcome depends upon various endogenous and exogenous determinants including immune status, and cytokines are one of the regulators which might play a vital role in the maintenance of pregnancy. The study was carried out to determine the role of cytokines, i.e., interleukin-6 (IL-6) and interleukin-10 (IL-10), in spontaneous abortion (SAb) cases with reference to control (women without SAb). One hundred twenty-six subjects (63 women with SAb cases and 63 control women without SAb and bearing at least one child) were enrolled. Out of the 63 SAb cases, 31 women from Outpatient Department (with history of SAb cases, i.e., one, two, or more) and 32 from the Gynecology ward (current SAb cases) were enrolled. The cytokines (IL-6 and IL-10) were measured by ELISA method using commercially available kit. The mean IL-6 level was higher among women with SAb cases, recent SAb and recurrent SAb cases versus controls, history of SAb and less than 2 SAb cases respectively, while an inverse pattern of variations was observed for IL-10 level. The Spearman's correlation revealed that the IL-6 was positively correlated while IL-10 was negatively correlated with number of incidences of SAbs. The data of women with recent SAb and childbirth were categorized into four IL quartiles and found that the highest % of control and lowest % of SAb subjects were in second quartile of IL-6 while highest % of control and lowest % of SAb subjects were in the fourth (high) quartile of IL-10 level group. A multiple regression model showed that with elevation in IL-6, there was an elevation in number of SAb cases and an inverse relationship was observed with regard to IL-10. The results indicate positive role of IL-10 and undesirable role of IL-6 on pregnancy outcomes. Further, quartiles' distribution suggests that high levels of IL-10 might be necessary for the effective pregnancy outcome, but more data are needed to substantiate the present findings.


Assuntos
Aborto Espontâneo/sangue , Interleucina-10/sangue , Interleucina-6/sangue , Aborto Espontâneo/diagnóstico , Aborto Espontâneo/etiologia , Adulto , Biomarcadores/sangue , Estudos de Casos e Controles , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Gravidez , Fatores de Risco
5.
PLoS One ; 15(12): e0243534, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33275646

RESUMO

The integrated counseling and testing center (ICTC) located in the district hospital, Unnao in the northern state of Uttar Pradesh (UP), India witnessed an increased detection of HIV among its attendees in July 2017. Subsequently, health camps were organized by the UP State AIDS Control Society in the villages and townships contributing to such detection. We conducted a case-control study to identify factors associated with this increased detection; 33 cases and 125 controls were enrolled. Cases were individuals, detected HIV sero-reactive during November 2017-April 2018 from three locations namely Premganj, Karimuddinpur and Chakmeerapur in the Bangarmau block of the district of Unnao. Controls hailed from the same geographical setting and tested HIV sero-nonreactive either in health camps or at ICTC centers from where the cases were detected. Misclassification bias was avoided by confirming HIV sero-status of both cases as well as controls prior to final analysis. Study participants were interviewed on various risk practices and invasive treatment procedures. They were also tested for HIV and other bio-markers reflecting unsafe injecting and sexual exposures such as hepatitis B surface antigen (HBsAg), anti-HCV antibody (HCV Ab), anti-herpes simplex-2 Immunoglobulin G (HSV-2 IgG) and rapid plasma regain (RPR) test for syphilis. Secondary data analysis on three time points during 2015 through 2018 revealed a rising trend of HIV among attendees of the ICTCs (ICTC-Hasanganj, ICTC-Unnao district hospital and ICTC- Nawabganj) catering to the entire district of Unnao. While there was a seven fold rise of HIV among ICTC attendees of Hasanganj (χ2 value for trend 23.83; p < 0.001), the rise in Unnao district hospital was twofold (χ2 value for trend 4.37; p < 0.05) and was tenfold at ICTC-Nawabganj (χ2 value for trend 5.23; p < 0.05) indicating risk of infection prevailing throughout the district. Primary data was generated through interviews and laboratory investigations as mentioned above. The median age of cases and controls was 50 year (minimum 18 -maximum 68; IQR 31-57) and 38 year (minimum 18 -maximum 78; IQR 29-50) respectively. Thirty six percent of the cases and 47% of controls were male. A significantly higher proportion of cases (85%) had HCV Ab compared to controls (56%; OR 4.4, 95% CI 1.5-12.1); none reported injection drug use. However, cases and controls did not differ significantly regarding presence of HSV-2 IgG (6% versus 8% respectively). Neither any significant difference existed between cases and controls in terms of receiving blood transfusion, undergoing invasive surgical procedures, tattooing, tonsuring of head or skin piercing. In multivariate logistic regression model, 'unsafe injection exposure during treatment-seeking'(AOR 6.61, 95% CI 1.80-24.18) and 'receipt of intramuscular injection in last five years' (AOR 7.20, 95% CI 1.48-34.88) were independently associated with HIV sero-reactive status. The monophyletic clustering of HIV sequences from 14 cases (HIV-1 pol gene amplified) indicated a common ancestry. Availability of auto-disabled syringes and needles, empowerment of the local communities and effective regulatory practices across care settings would serve as important intervention measures in this context.


Assuntos
Infecções por HIV/epidemiologia , Infecções por HIV/transmissão , Adulto , Estudos de Casos e Controles , Estudos Transversais , Surtos de Doenças , Contaminação de Equipamentos/prevenção & controle , Contaminação de Equipamentos/estatística & dados numéricos , Feminino , HIV/patogenicidade , Antígenos de Superfície da Hepatite B/sangue , Hepatite C/epidemiologia , Anticorpos Anti-Hepatite C/sangue , Humanos , Índia/epidemiologia , Masculino , Pessoa de Meia-Idade , Prevalência , Fatores de Risco , Comportamento Sexual/psicologia , Abuso de Substâncias por Via Intravenosa/epidemiologia , Sífilis/epidemiologia
6.
J Hepatol ; 72(1): 67-74, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31604081

RESUMO

BACKGROUND & AIMS: There have been calls to integrate HCV testing into existing services, including harm reduction and HIV prevention and treatment, but there are few empirical trials to date. We evaluated the impact of integrating HCV testing/education into integrated care centers (ICCs) delivering HIV services to people who inject drugs (PWID) across India, using a cluster-randomized trial. METHODS: We compared ICCs with usual care in the PWID stratum (12 sites) of a 22-site cluster-randomized trial. In 6 sites, ICCs delivering HIV testing, harm reduction, other preventive services and linkage to HIV treatment were scaled from opioid agonist therapy centers and operated for 2 years. On-site rapid HCV antibody testing was integrated after 1 year. To assess impact, we conducted baseline and evaluation surveys using respondent-driven sampling (RDS) across the 12 sites (n = 11,993 recruited at baseline; n = 11,721 recruited at evaluation). The primary outcome was population-level self-reported HCV testing history. RESULTS: At evaluation, HCV antibody prevalence ranged from 7.2-76.6%. Across 6 ICCs, 5,263 ICC clients underwent HCV testing, of whom 2,278 were newly diagnosed. At evaluation, PWID in ICC clusters were 4-fold more likely to report being tested for HCV than in usual care clusters, adjusting for baseline testing (adjusted prevalence ratio [aPR] 3.69; 95% CI 1.34-10.2). PWID in ICC clusters were also 7-fold more likely to be aware of their HCV status (aPR 7.11; 95% CI 1.14-44.3) and significantly more likely to initiate treatment (aPR 9.86; 95% CI 1.52-63.8). CONCLUSIONS: We provide among the first empirical data supporting the integration of HCV testing into HIV/harm reduction services. To achieve elimination targets, programs will need to scale-up such venues to deliver comprehensive HCV services. CLINICALTRIALS. GOV IDENTIFIER: NCT01686750. LAY SUMMARY: Delivering hepatitis C virus (HCV) testing to people who inject drugs (PWID) in places where they also have access to HIV prevention and treatment services is an effective way to improve uptake of HCV testing among communities of PWID. To achieve the World Health Organization's ambitious elimination targets, integrated programs will need to be scaled up to deliver comprehensive HCV services.


Assuntos
Infecções Oportunistas Relacionadas com a AIDS/diagnóstico , Infecções Oportunistas Relacionadas com a AIDS/epidemiologia , Prestação Integrada de Cuidados de Saúde/métodos , HIV , Hepacivirus/imunologia , Hepatite C/diagnóstico , Hepatite C/epidemiologia , Abuso de Substâncias por Via Intravenosa/epidemiologia , Infecções Oportunistas Relacionadas com a AIDS/prevenção & controle , Infecções Oportunistas Relacionadas com a AIDS/virologia , Adulto , Análise por Conglomerados , Comorbidade , Estudos Transversais , Feminino , Redução do Dano , Hepatite C/sangue , Hepatite C/virologia , Anticorpos Anti-Hepatite C/sangue , Humanos , Índia/epidemiologia , Masculino , Prevalência , Minorias Sexuais e de Gênero , Adulto Jovem
7.
Lancet HIV ; 6(5): e283-e296, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30952565

RESUMO

BACKGROUND: To achieve reductions in HIV incidence, we need strategies to engage key population at risk for HIV in low-income and middle-income countries. We evaluated the effectiveness of integrated care centres in India that provided single-venue HIV testing, prevention, and treatment services for people who inject drugs (PWID) and men who have sex with men (MSM). METHODS: We did baseline respondent-driven sampling surveys in 27 sites across India, and selected 22 of these (12 PWID and ten MSM) for a cluster randomised trial on the basis of high HIV prevalence and logistical considerations. We used stratified (by PWID and MSM), restricted randomisation to allocate sites to either the integrated care intervention or usual care (11 sites per group). We implemented integrated care centres in 11 cities (six PWID integrated care centres embedded within opioid agonist treatment centres and five MSM centres within government-sponsored health services), with a single integrated care centre per city in all but one city. After a 2-year intervention phase, we did respondent-driven sampling evaluation surveys of target population members who were aged 18 years or older at all sites. The primary outcome was self-reported HIV testing in the previous 12 months (recent testing), determined via the evaluation survey. We used a biometric identification system to estimate integrated care centre exposure (visited an integrated care centre at least once) among evaluation survey participants at intervention sites. This trial is registered with ClinicalTrials.gov, number NCT01686750. FINDINGS: Between Oct 1, 2012, and Dec 19, 2013, we recruited 11 993 PWID and 9997 MSM in the baseline survey and, between Aug, 1 2016, and May 27, 2017, surveyed 11 721 PWID and 10 005 MSM in the evaluation survey using respondent-driven sampling, across the 22 trial sites. During the intervention phase, integrated care centres provided HIV testing for 14 698 unique clients (7630 PWID and 7068 MSM. In the primary population-level analysis, recent HIV testing was 31% higher at integrated care centres than at usual care sites (adjusted prevalence ratio [PR] 1·31, 95% CI 0·95-1·81, p=0·09). Among survey participants at intervention sites, integrated care centre exposure was lower than expected (median exposure 40% at PWID sites and 24% at MSM sites). In intervention sites, survey participants who visited an integrated care centre were more likely to report recent HIV testing than were participants who had not (adjusted PR 3·46, 2·94-4·06). INTERPRETATION: Although integrated care centres increased HIV testing among visitors, our low exposure findings suggest that the scale-up of a single integrated care centre in most cities was insufficient to serve the large PWID and MSM populations. Future work should address the use of population size estimates to guide the dose of combination HIV interventions targeting key populations. FUNDING: US National Institutes of Health and the Elton John AIDS Foundation.


Assuntos
Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , HIV , Adulto , Prestação Integrada de Cuidados de Saúde/métodos , Testes Diagnósticos de Rotina , Feminino , HIV/classificação , HIV/genética , Infecções por HIV/prevenção & controle , Infecções por HIV/terapia , Humanos , Índia/epidemiologia , Masculino , Vigilância em Saúde Pública , Fatores de Risco , Adulto Jovem
8.
Indian J Med Res ; 146(1): 83-96, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29168464

RESUMO

BACKGROUND & OBJECTIVES: Evidence-based planning has been the cornerstone of India's response to HIV/AIDS. Here we describe the process, method and tools used for generating the 2015 HIV estimates and provide a summary of the main results. METHODS: Spectrum software supported by the UNAIDS was used to produce HIV estimates for India as a whole and its States/Union Territories. This tool takes into consideration the size and HIV prevalence of defined population groups and programme data to estimate HIV prevalence, incidence and mortality over time as well as treatment needs. RESULTS: India's national adult prevalence of HIV was 0.26 per cent in 2015. Of the 2.1 million people living with HIV/AIDS, the largest numbers were in Andhra Pradesh, Maharashtra and Karnataka. New HIV infections were an estimated 86,000 in 2015, reflecting a decline by around 32 per cent from 2007. The declining trend in incidence was mirrored in most States, though an increasing trend was detected in Assam, Chandigarh, Chhattisgarh, Gujarat, Sikkim, Tripura and Uttar Pradesh. AIDS-related deaths were estimated to be 67,600 in 2015, reflecting a 54 per cent decline from 2007. There were variations in the rate and trend of decline across India for this indicator also. INTERPRETATION & CONCLUSIONS: While key indicators measured through Spectrum modelling confirm success of the National AIDS Control Programme, there is no room for complacency as rising incidence trends in some geographical areas and population pockets remain the cause of concern. Progress achieved so far in responding to HIV/AIDS needs to be sustained to end the HIV epidemic.


Assuntos
Epidemias , Infecções por HIV/epidemiologia , HIV/patogenicidade , Adolescente , Adulto , Feminino , Infecções por HIV/patologia , Infecções por HIV/virologia , Humanos , Índia/epidemiologia , Masculino , Pessoa de Meia-Idade , Prevalência , Adulto Jovem
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