Publications by authors named "Sperandei S"

Background: People with multiple sclerosis (PwMS) experience various degrees of cognitive impairment (CI). Synaptic dysfunction may contribute to CI in PwMS but cerebrospinal fluid (CSF) synaptic biomarkers are unexplored in MS.

Objective: To assess the role of CSF synaptosomal-associated protein 25 (SNAP-25), β-synuclein, neurogranin and neurofilament light chain protein (NfL) in patients with early relapsing MS with and without CI.

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Aims: Waiting time (WT) and length of stay (LOS) are important metrics used to assess service delivery in emergency departments (EDs), and have been associated with subsequent re-presentations in EDs. This study investigated socio-demographic and health service determinants of WT and LOS among hospital treated self-harm (SH) cases presenting to EDs in Australian based hospitals.

Methods: This study employed a retrospective cohort study of all SH cases (N = 6203) presenting to public hospital EDs in the Western Sydney catchment area from January 2016 to December 2022.

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Objectives: This study investigated the association between indicators of psychological distress and well-being and trajectories of sleep duration among a cohort of Australian adolescents.

Design: A prospective cohort of adolescents was followed over 27 weeks (8 November 2019-14 May 2020). Data on sleep duration and psychological distress were collected via smartphones, based on ecological momentary assessments.

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Objectives: Despite the established benefits and availability of mammographic breast screening, participation rates remain suboptimal. Women with higher BMIs may not screen regularly, despite being at increased risk of postmenopausal breast cancer and worse outcomes. This study investigated the association between prospective changes in BMI and longitudinal adherence to mammographic screening among women with overweight or obesity.

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Objective: To identify groups of transgender women and travestis (TGW) with specific patterns of gender-based discrimination (GBD) and analyze the factors associated with GBD.

Methods: A cross-sectional study was conducted with TGW recruited through respondent-driven sampling in five Brazilian cities (2019-2021). Latent class analysis was used to characterize GBD (low, medium, and high) using 14 observable variables.

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Objective: To estimate the prevalence of concomitant substance consumption and analyze associated risk factors in a non-probabilistic sample of the Brazilian population of transgender women and travestis.

Methods: A cross-sectional study was conducted with recruitment via respondent-driven sampling. The sample included transgender women and travestis residing in São Paulo, Porto Alegre, Salvador, Manaus, and Campo Grande, aged 18 years or older, between 2019 and 2021.

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Objective: To analyze the experiences of transgender women and travestis regarding the use of hormones for body changes without a medical prescription.

Methods: This is a cross-sectional, quantitative and qualitative study, using data from "TransOdara", which estimated the prevalence of Sexually Transmitted Infections in transgender women and travestis recruited through Respondent-Driven Sampling, between December 2019 and July 2021, in São Paulo, Campo Grande, Manaus, Porto Alegre, and Salvador, Brazil. The main outcome was: use of hormones without medical prescription and associated risk factors.

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Objective: To investigate the prior testing for HIV, syphilis, hepatitis B (HBV), and hepatitis C (HCV) among transgender women and travestis (TGW) in five Brazilian cities and identify factors associated with each of these previous tests.

Methods: This is a cross-sectional study with the recruitment of TGW through respondent-driven sampling (TransOdara Study). The investigated outcome variable was prior testing for HIV, syphilis, HBV, and HCV in the last 12 months.

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Article Synopsis
  • - The study aimed to determine the prevalence and contributing factors of Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) infections in transgender women and travestis across five Brazilian cities from 2019 to 2021.
  • - A total of 1,297 participants were analyzed, revealing CT prevalence at 11.5%, NG at 13.3%, and coinfection at 3.6%, with certain factors like sex work and injectable drug use significantly linked to higher infection rates.
  • - The findings highlight that transgender individuals, especially younger ones involved in sex work and illicit drug use, experience greater prevalence of sexually transmitted infections compared to the general population.
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Objective: To estimate the prevalence and factors associated with hepatitis A, B, and C in transgender women and travestis's networks, in 5 regions of Brazil.

Methods: This cross-sectional study includedtransgender women and travestis in five Brazilian capitals (Campo Grande, Manaus, Porto Alegre, Salvador, and São Paulo), between December/2019 and July/2021. All samples were subjected to detection of serological markers of hepatitis virus A (HAV), B (HBV), and C (HCV) infections through rapid tests and chemiluminescent microparticle immunoassays.

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Objective: The study aimed to estimate the prevalence of acquired syphilis and associated factors in a national survey.

Methods: TransOdara was a cross-sectional study comprising transgender women and travestis (TGW) in five major cities in Brazil during December of 2019 and July of 2021. The sample was recruited using the respondent-driven sampling (RDS) method.

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Objective: Sexually transmitted infections (STIs) disproportionately affect transgender women and travestis (TGW), who often lack access to healthcare due to stigma and discrimination. We describe the approach and methodology of a study investigating the prevalence of syphilis, HIV, hepatitis A, B, and C, Neisseria gonorrhoeae (NG), Chlamydia trachomatis (CT), and human papillomavirus (HPV) among TGW, as well as their knowledge and perceptions regarding syphilis, to better inform policies to curb STIs among this vulnerable population.

Methods: TransOdara was a multicentric, cross-sectional study conducted among TGW in five capital cities from major Brazilian regions between December 2019 and July 2021.

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Article Synopsis
  • Cognitive impairment is a significant issue for people with multiple sclerosis (pwMS), and this study investigates the potential influence of intrathecal B cells on cognitive performance.
  • A retrospective analysis of cerebrospinal fluid from 39 newly diagnosed pwMS found that higher levels of the κ-index, indicating B cell activation, were linked to worse verbal memory scores.
  • The findings suggest that intrathecal B cells may contribute to memory impairment in pwMS regardless of visible brain damage on MRI scans.
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Early diagnosis of multiple sclerosis (MS) relies on clinical evaluation, magnetic resonance imaging (MRI), and cerebrospinal fluid (CSF) analysis. Reliable biomarkers are needed to differentiate MS from other neurological conditions and to define the underlying pathogenesis. This study aimed to comprehensively profile immune activation biomarkers in the CSF of individuals with MS and explore distinct signatures between MS with and without oligoclonal bands (OCB).

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Multiple sclerosis (MS) primarily affects adult females. However, in the last decades, rising incidence and prevalence have been observed for demographic extremes, such as pediatric-onset MS (POMS; occurring before 18 years of age) and late-onset MS (corresponding to an onset above 50 years). These categories show peculiar clinical-pathogenetic characteristics, aging processes and disease courses, therapeutic options, and unmet needs.

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Objectives: To investigate trajectories in socio-economic position (SEP) and the onset of a range of physical and mental health outcomes and commencement of treatment.

Methods: The Household Income and Labour Dynamics Australia (HILDA) study, a nationally representative prospective cohort study over the period 2001 to 2020 was used to define trajectories of SEP. Trajectories of low, low-middle, upper-middle and high SEP and decreasing (low-middle to upper-middle SEP) or increasing (upper-middle to lower-middle SEP) SEP were identified using k-longitudinal means.

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Background: Anxiety represents one of the most prevalent psychiatric symptoms in multiple sclerosis (MS), impacting the overall disease burden and quality of life. This psychopathological feature can be expressed as state (S-ANX) and trait (T-ANX) anxiety, but few studies specifically evaluated these two components in MS. The present study was aimed at investigating the prevalence and specific correlates of S-ANX and T-ANX in a cohort of people with MS (PwMS).

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Background: This study investigated the trends in primary mental health care (PMHC) service use and hospital-treated self-harm in Western Sydney (Australia). Methods: A data linkage study and descriptive ecological study of PMHC referrals investigated the trends in referrals, treatment attendance, hospital-treated self-harm, and health care practitioners (HCPs) for the period of 2013−2018 (n = 19,437). Results: There was a substantial increase in referrals from 2016.

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Article Synopsis
  • The study evaluates how including spinal cord MRI affects the definition of "no evidence of disease activity" (NEDA) in multiple sclerosis (MS) patients.
  • When only considering clinical measures and brain MRI, 84.3% of patients met NEDA criteria; however, this number dropped to 76.5% when spinal cord imaging was factored in.
  • The results indicate that routine spinal cord MRI monitoring could lead to a significant decrease in the number of MS patients classified as stable under NEDA criteria.
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