Publications by authors named "Karlsson L"

The brain develops most rapidly during pregnancy and early neonatal months. While prior electrophysiological studies have shown that aperiodic brain activity undergoes changes across infancy to adulthood, the role of gestational duration in aperiodic and periodic activity remains unknown. In this study, we aimed to bridge this gap by examining the associations between gestational duration and aperiodic and periodic activity in the EEG power spectrum in both neonates and toddlers.

View Article and Find Full Text PDF

Childhood maltreatment exposure (CME) increases the risk of adverse long-term health consequences for the exposed individual. Animal studies suggest that CME may also influence the health and behaviour in the next generation offspring through CME-driven epigenetic changes in the germ line. Here we investigated the associated between early life stress on the epigenome of sperm in humans with history of CME.

View Article and Find Full Text PDF

: We evaluated associations between changes in dental anxiety and oral health-related quality of life (OHRQoL) in parents of the FinnBrain Birth Cohort Study. : Two-year dental anxiety trajectories measured with Modified Dental Anxiety Scale from gestational weeks (gw) 14 and 34, and 3 and 24 months after birth were used. OHRQoL was measured with the Oral Health Impact Profile 14-item questionnaire at gw34 and 4 years.

View Article and Find Full Text PDF

Background: Bariatric surgery has been shown to cause a negative impact on oral health, as reflected by postsurgical increase of caries-related dental interventions.

Objectives: The aim of this study was to compare dental intervention rates after Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG).

Setting: Nationwide and register-based (Sweden).

View Article and Find Full Text PDF

The study aimed to investigate the persistence or changes in trait resilience of parents over a 6-year period and its association with stressful life events (SLEs). Furthermore, we explored the potential protective effect of trait resilience against exposure to stressful life events and their negative mental health consequences. The study population was drawn from the ongoing FinnBrain Birth Cohort Study and included 1388 mothers and 657 fathers who completed the CD-RISC-10 questionnaire during pregnancy and again 6 years later.

View Article and Find Full Text PDF

Tuberculosis (TB) poses a significant global health threat, with high mortality rates if left untreated. Current sputum-based TB treatment monitoring methods face numerous challenges, particularly in relation to sample collection and analysis. This pilot study explores the potential of TB status assessment using DNA methylation (DNAm) signatures, which are gaining recognition as diagnostic and predictive tools for various diseases.

View Article and Find Full Text PDF
Article Synopsis
  • Maternal immune activation (MIA) during pregnancy may contribute to psychiatric disorders in children, but its effects on brain development and sex differences are not fully understood.
  • A study analyzed data from 2,635 mother-child pairs to explore how maternal levels of CRP, a marker of inflammation, correlate with offspring brain structure, focusing on cortical thickness, surface area, and volume.
  • Findings reveal that normal maternal CRP levels show different effects on brain development in boys and girls, while higher CRP levels are linked to changes in brain structure in both sexes, highlighting the importance of sex and inflammation in neurodevelopment.
View Article and Find Full Text PDF
Article Synopsis
  • The study investigates how parental cognitive abilities (executive functioning) and emotional processing difficulties (alexithymic traits) affect the emotional quality of parent-child relationships (emotional availability).
  • Researchers measured these factors in 119 mothers with young children, finding that higher alexithymic traits were linked to poorer caregiving abilities.
  • The results suggest that parents with lower cognitive executive functioning may struggle more with emotional availability, indicating the need for further research into the interaction between these traits.
View Article and Find Full Text PDF

Early-onset pre-eclampsia is believed to arise from defective placentation in the first trimester, leading to placental ischaemia/reperfusion (I/R) and oxidative stress. However, our current understanding of the effects of I/R and oxidative stress on trophoblast function is ambiguous in part due to studies exposing trophoblasts to hypoxia instead of I/R, and which report conflicting results. Here, we present a model of simulated ischaemia/reperfusion (SI/R) to recapitulate the pathophysiological events of early-onset pre-eclampsia (PE), by exposing first trimester cytotrophoblast HTR-8/SVneo cells to a simulated ischaemia buffer followed by reperfusion.

View Article and Find Full Text PDF

The beneficial effects of exercise are partly mediated via local or systemic functions of the insulin-like growth factor-1 (IGF-1) system. As IGF-1 increases local brain hemoglobin beta (Hbb) transcripts, we hypothesized that exercise could have similar effects. Mice were single-housed with free access to running wheels for seven days.

View Article and Find Full Text PDF

Vaccine hesitancy has been identified as one of the top ten threats to global health by the World Health Organization (WHO). The belief in conspiracy narratives is repeatedly discussed as a major driver of vaccine hesitancy among the general population. However, there is a lack of research investigating the role of the belief in conspiracy narratives in vaccination decisions and recommendation behaviours of physicians.

View Article and Find Full Text PDF

Background: Arthroscopic treatment for femoroacetabular impingement syndrome (FAIS) has previously been reported to have favorable short-term results in high-level athletes. Less is known about long-term outcomes.

Purpose: To report outcomes 10 years after hip arthroscopy for FAIS in high-level athletes using validated patient-reported outcome measures (PROMs).

View Article and Find Full Text PDF

Left atrial (LA) epicardial adipose tissue (EAT) and wall fibrosis are both proven to contribute to the pathogenesis and progression of atrial fibrillation (AF). The theory of LA wall fibrosis induction by local EAT infiltration, paracrine secretions, and activation of the inflammatory process is strongly advocated, but the imaging evidence for anatomical proximity of the two tissue types and its association to AF stage is lacking. Accordingly, the aim of the study was to analyse the spatial overlap between LA EAT and adjacent wall fibrosis using 3D Dixon water-fat separated late gadolinium enhancement (LGE-Dixon) MRI and correlate the findings with the clinical AF stage.

View Article and Find Full Text PDF
Article Synopsis
  • - This study aimed to evaluate the long-term outcomes of hip arthroscopy for treating femoroacetabular impingement syndrome (FAIS) by analyzing patient-reported outcomes (PROMs) before and at least 10 years after surgery.
  • - Involving 128 patients who had surgery between 2011 and 2013, the study found significant improvements in various PROMs, including patient satisfaction, with 83% reporting they were happy with the results and a 77% rate of avoiding total hip arthroplasty.
  • - The findings suggest that hip arthroscopy for FAIS leads to meaningful and statistically significant improvements in hip function and quality of life over a decade.
View Article and Find Full Text PDF

In the treatment of diseases such as acute childhood leukaemia (ALL) and inflammatory bowel disease (IBD), the thiopurines azathioprine, 6-mercaptopurine, and 6-thioguanine are used. Thiopurines are antimetabolites and immunomodulators used to maintain remission in patients. They are all prodrugs and must be converted into the competing antimetabolites thioguanosine triphosphate and deoxythioguanosine triphosphate for final incorporation into RNA or DNA.

View Article and Find Full Text PDF

Background: The Occupational Balance Questionnaire (OBQ11) is a commonly used instrument for measuring self-rated occupational balance. It needs further development, and therefore an additional 11 tentative items have been developed. One aspect of this is studying the interpretations and reasoning of people responding to the items/instrument.

View Article and Find Full Text PDF

Prioritized attention to faces can be viewed as an early-developing marker of social engagement. This behavior is closely linked with early interactions, but there has been little research examining the longitudinal associations between social engagement and parent-child interaction. We examined the reciprocal relations between mother-child interaction and child engagement with faces from infancy to preschool age.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to explore sleep duration and sleep loss in pregnant women and how maternal characteristics and mood symptoms influence these factors.
  • Researchers analyzed data from 3,038 women at different stages of pregnancy, assessing their reported sleep duration and perceived sleep loss alongside factors like age, BMI, and mood symptoms.
  • Results indicated a reduction in sleep duration by delivery, an increase in short sleepers, and a notable rise in sleep loss during the final month of pregnancy, with significant associations identified between sleep patterns and factors such as age, multiparity, and depressive symptoms.
View Article and Find Full Text PDF

Objective: To improve health conditions among hypogonadal men ≥70 years of age using testosterone undecanoate (TU) injections, progressive strength training, and oral supplements of vitamin D, calcium, and protein.

Methods: This study is a 1-year follow-up of a double-blind RCT lasting 20 weeks, including 148 older men ≥70 years old with low testosterone levels and mobility problems. During 52 weeks, 4 groups received either testosterone therapy (TU) or progressive resistance training (Training), both (Combo), or no intervention (Controls).

View Article and Find Full Text PDF
Article Synopsis
  • Hamstring strain injuries (HSIs) are common in NFL players, particularly affecting positions like wide receivers and defensive backs, with the biceps femoris being the most frequently injured muscle.
  • A study analyzed 180 acute HSIs from the 2018-2019 NFL season to explore the relationship between player characteristics, clinical exams, and MRI findings regarding injury severity and time missed from games.
  • Findings indicated that nearly half of the injuries were moderate (BAMIC grade 2), with specific locations on the biceps femoris and semimembranosus being the most affected, and MRI detected abnormalities in the sciatic nerve in some cases.
View Article and Find Full Text PDF

Health communicators are faced with the challenge that people can hesitate vaccines for different reasons. Our aim was to identify and describe the qualities of distinct COVID-19 and influenza vaccine-hesitancy subgroups to facilitate the development of tailored vaccine-hesitancy communication. In two studies, we used agglomerative hierarchical cluster analysis to identify COVID-19 (N = 554) and influenza (N = 539) vaccine-hesitancy subgroups in the general population based on nine vaccine hesitancy-related variables (intent to get vaccinated, perceived vaccine safety, perceived vaccine efficacy, perceived disease threat, perceived vaccination responsibility, perceived vaccination convenience, distrust in authorities, conspiracy mentality, and reliance on anecdotal testimonies).

View Article and Find Full Text PDF

Aim: Parental adverse childhood experiences (ACE) might affect the offspring health through intergenerational inheritance. The aim of this study was to investigate how paternal ACE associate with offspring sensitisation and allergic rhinitis (AR).

Methods: The study included 590 Finnish father-child dyads from the FinnBrain Birth Cohort Study.

View Article and Find Full Text PDF

Epigenetic processes, such as DNA methylation, show potential as biological markers and mechanisms underlying gene-environment interplay in the prediction of mental health and other brain-based phenotypes. However, little is known about how peripheral epigenetic patterns relate to individual differences in the brain itself. An increasingly popular approach to address this is by combining epigenetic and neuroimaging data; yet, research in this area is almost entirely comprised of cross-sectional studies in adults.

View Article and Find Full Text PDF

Large multi-site studies that combine magnetic resonance imaging (MRI) data across research sites present exceptional opportunities to advance neuroscience research. However, scanner or site variability and non-standardised image acquisition protocols, data processing and analysis pipelines can adversely affect the reliability and repeatability of MRI derived brain measures. We implemented a standardised MRI protocol based on that used in the Adolescent Brain Cognition Development (ABCD) study in two sites, and across four MRI scanners.

View Article and Find Full Text PDF
Article Synopsis
  • Tuberculosis (TB) is a leading cause of infectious death globally, prompting the need for efficient diagnostic methods, which this study explores using buccal swabs to analyze DNA methylation signatures as a potential diagnostic tool.
  • Researchers collected buccal swabs from TB patients, those exposed to TB, and healthy controls in Sweden, discovering 5,644 significant differentially methylated CpG sites that helped distinguish patients from controls.
  • Validation in cohorts from Kenya and Peru provided a classifier using seven specific CpG sites, achieving high accuracy with an AUC of 0.94, indicating strong potential for using DNAm signatures in TB diagnostics.
View Article and Find Full Text PDF