12,115 results match your criteria: "University of Tartu; Riia Street 23[Affiliation]"

Temperature-mortality associations by age and cause: a multi-country multi-city study.

Environ Epidemiol

October 2024

Environment and Health Modelling (EHM) Lab, Department of Public Health, Environments and Society, London School of Hygiene & Tropical Medicine, London, United Kingdom.

Background: Heterogeneity in temperature-mortality relationships across locations may partly result from differences in the demographic structure of populations and their cause-specific vulnerabilities. Here we conduct the largest epidemiological study to date on the association between ambient temperature and mortality by age and cause using data from 532 cities in 33 countries.

Methods: We collected daily temperature and mortality data from each country.

View Article and Find Full Text PDF

The genetic landscape of cardiometabolic risk factors has been explored extensively. However, insight in the effects of genetic variation on these risk factors over the life course is sparse. Here, we performed genome-wide interaction studies (GWIS) on different cardiometabolic risk factors to identify age-specific genetic risks.

View Article and Find Full Text PDF

Objective: To identify which socioeconomic factors are affecting oral health-related behavior and to provide suggestions for improving the population's oral health.  Materials and methods: The survey includes population groups from age 35 and older from all 15 Estonian counties and major cities (n = 2,376). The study is based on data from a nationwide Estonian Adult Oral Health Survey questionnaire.

View Article and Find Full Text PDF

The World Health Organization (WHO) plays an important role in developing evidence-based and ethically sound guidelines to assist health workers, programme managers and policy-makers, particularly in countries with limited capacities to create their own. While the development of these guidelines follows rigorous methods, contextualizing recommendations is often necessary to ensure their applicability, feasibility and acceptability at the country level. The adaptation and adoption of global guidelines should happen in a transparent, systematic and participatory manner to maintain credibility while ensuring the ownership necessary for implementation.

View Article and Find Full Text PDF

While research has shown that wearing a disguise hinders lineup identifications, less is known about how to conduct lineups in cases of disguised perpetrators. We examined the influence of surgical masks, worn during a crime event (encoding) and within lineups (retrieval), on eyewitness identification accuracy. In our experiment, 452 participants watched a mock-crime video and identified the perpetrator from either a target-present or a target-absent simultaneous lineup.

View Article and Find Full Text PDF

Background: Social behaviour is the expression of one of the most generally accepted independent dimensions of personality. Serotonergic neurotransmission has been implicated in typical social response and drugs that promote serotonin (5-hydroxytryptamine (5-HT)) release have prosocial effects. By using the social interaction test, we have previously demonstrated sociability as a temperamental trait in male Wistar rats.

View Article and Find Full Text PDF

Sex dependence of postoperative pulmonary complications - A post hoc unmatched and matched analysis of LAS VEGAS.

J Clin Anesth

December 2024

Amsterdam University Medical Center, Department of Anaesthesiology, Meibergdreef 9, 1105AZ Amsterdam, the Netherlands; Amsterdam University Medical Center, Department of Intensive Care, Meibergdreef 9, 1105AZ Amsterdam, the Netherlands.

Article Synopsis
  • The study aimed to investigate whether there are differences in postoperative pulmonary complications (PPCs) between males and females following surgery under general anesthesia, using data from the LAS VEGAS study involving 146 hospitals across 29 countries.
  • A total of 9,697 patients were analyzed in two cohorts: an unmatched cohort (55.1% female, 44.9% male) and a matched cohort (50% female and male), finding no significant differences in PPC rates between the genders in both cohorts.
  • The study concluded that, in this international patient population, the incidence of PPCs did not differ significantly between males and females, as well as noting comparable hospital stays and mortality rates.*
View Article and Find Full Text PDF

Obesity is a significant public health concern. GLP-1 receptor agonists (GLP1-RA), predominantly in use as a type 2 diabetes treatment, are a promising pharmacological approach for weight loss, while bariatric surgery (BS) remains a durable, but invasive, intervention. Despite observed heterogeneity in weight loss effects, the genetic effects on weight loss from GLP1-RA and BS have not been extensively explored in large sample sizes, and most studies have focused on differences in race and ethnicity, rather than genetic ancestry.

View Article and Find Full Text PDF

The aim of this study was to compare different antigen retrieval methods to improve the outcome of immunohistochemistry (IHC) performed on osteoarthritic (OA) cartilage obtained from total knee replacement operation. A voluminous and dense extracellular matrix of articular cartilage inhibits antibody penetration, and therefore, proteins present at low concentrations and masked during fixation may need antigen retrieval to enhance an IHC outcome. We focused on the IHC detection of a minor but diagnostically promising cartilage glycoprotein, CILP-2 (cartilage intermediate layer protein 2), to demonstrate the effect of four different protocols: (1) heat-induced epitope retrieval (HIER), (2) proteolytic-induced epitope retrieval applying proteinase K and hyaluronidase (PIER), (3) HIER combined with PIER, and (4) no antigen retrieval (control).

View Article and Find Full Text PDF

The ongoing demand for effective antimicrobial materials persists, and lignin emerges as a promising natural antibacterial material with renewable properties. The adaptability of lignin to various chemical modifications offers avenues to enhance its antimicrobial activity. Here, we employed chloromethylation and subsequent functionalization with variable tertiary alkyl dimethyl amines to produce C6-C18 quaternary ammonium lignins (QALs) from hardwood (aspen), softwood (pine), and grass (barley straw).

View Article and Find Full Text PDF

- Experience of Trauma Awareness among Estonian Foster Parents and Residential Caregivers.

J Child Adolesc Trauma

September 2024

Institute of Social Studies, University of Tartu, Tartu, Lossi 36, Tartu 51003 Estonia.

Trauma-informed care (TIC) is a relatively new topic in the Estonian child protection system, but it has become the particular focus of substitute care. The Estonian child protection system focuses on protecting children from maltreatment, and neglects the adult carers' right to adequate information about the child's trauma experience. This makes trauma-informed care vague.

View Article and Find Full Text PDF

Enhanced osteointegration and osteogenesis of osteoblast cells by laser-induced surface modification of Ti implants.

Nanomedicine

November 2024

Biomedical Research Centre, Sumy State University, R-Korsakova Str., 40007 Sumy, Ukraine; Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas Str., LV-1004 Riga, Latvia. Electronic address:

Dental and orthopedic implants have become routine medical technologies for tooth replacement and bone fixation. Despite significant progress in implantology, achieving sufficient osseointegration remains a challenge, often leading to implant failure over the long term. Nanotechnology offers the potential to mimic the natural patterns of living tissues, providing a promising platform for tissue engineering and implant surface design.

View Article and Find Full Text PDF

Unlabelled: The number of -related infections in humans, e.g., by , has increased along the coasts of the Baltic Sea.

View Article and Find Full Text PDF
Article Synopsis
  • Researchers studied strokes from 1990 to 2021 to understand how many people get them and how they are affected around the world.
  • In 2021, strokes caused about 7.3 million deaths and were a major cause of health problems, especially in specific regions like Southeast Asia and Oceania.
  • There are differences in stroke risks based on where people live and their age, and some areas actually saw more strokes happening since 2015.
View Article and Find Full Text PDF

Ultrasound effect on a biorefinery lignin-cellulose mixture.

Ultrason Sonochem

December 2024

Institute of Chemistry, University of Tartu, Ravila 14a, Tartu, Estonia.

Forest biorefineries provide multiple new avenues for applied research. The main concept lies in the malleability of the processes and their stepwise organization. The core element of the biorefinery concept addressed in the present study is the pretreatment step; here, wood biomass is converted into free hemicellulosic sugars, lignin and cellulose.

View Article and Find Full Text PDF

Objectives: This study aimed to simultaneously and bilingually validate the Hospital Survey on Patient Safety Culture (HSOPSC 2.0) and the Safety Attitudes Questionnaire (SAQ).

Methods: The validation included translation, cultural adaptation, and assessment of validity and consistency.

View Article and Find Full Text PDF
Article Synopsis
  • Excessive heart rates in septic shock patients can negatively impact their health, prompting a study on the use of the ultra-short-acting beta-blocker landiolol to control heart rate without raising the need for vasopressors.
  • Conducted across 20 sites in Europe from 2018 to 2022, the study compared landiolol combined with standard treatment to standard treatment alone in adults with septic shock and high heart rates, focusing on maintaining a target heart rate (80-94 bpm) without increasing vasopressor requirements.
  • Results showed that a higher percentage of patients receiving landiolol achieved the target heart rate compared to those receiving standard treatment (39.8% vs. 23.5%), but there were no
View Article and Find Full Text PDF

Global freshwater distribution of Telonemia protists.

ISME J

January 2024

Department of Aquatic Microbial Ecology, Institute of Hydrobiology, Biology Centre of the Czech Academy of Sciences, 37005, České Budějovice, Czech Republic.

Article Synopsis
  • Telonemia are ancient marine protists with established evolutionary links to the SAR supergroup, but their ecological roles and distribution in freshwater environments remain under-researched.
  • A global study of over a thousand freshwater metagenomes and 407 samples from lakes revealed a wide distribution of Telonemia, though no new major clades were identified, indicating their diversity is well-represented in current surveys.
  • Findings suggest Telonemia prefer colder, deeper areas of lakes in the Northern Hemisphere, where they can make up 10%-20% of the heterotrophic flagellate population, highlighting their significance in freshwater food webs.
View Article and Find Full Text PDF

Introduction: Use of albumin is suggested for some patients with shock, but preferences for its use may vary among intensive care unit (ICU) physicians.

Methods: We conducted an international online survey of ICU physicians with 20 questions about their use of albumin and their opinion towards a randomised trial among adults with shock comparing the use versus no use of albumin.

Results: A total of 1248 respondents participated, with a mean response rate of 37%, ranging from 18% to 75% across 21 countries.

View Article and Find Full Text PDF

Atopy and asthma in children born to mothers at risk of gestational diabetes mellitus: a follow-up study.

BMC Pregnancy Childbirth

September 2024

Department of Immunology, Institute of Bio- and Translational Medicine, University of Tartu, Tartu, Estonia.

Background: Gestational diabetes mellitus (GDM) is the most prevalent metabolic disturbance during pregnancy and is associated with adverse outcomes in offspring, including an elevated risk for developing atopic diseases in early childhood. Research is limited regarding only women at risk of GDM among whom some develop GDM while others do not. Information about adverse health outcomes in the offspring of these women is also lacking.

View Article and Find Full Text PDF

Every year millions die prematurely of complications related to chronic kidney disease (CKD). Main causes of death are connected with cardiovascular (CV) complications. There is no cure for CKD although current treatment can slow the progression of the disease if diagnosed early.

View Article and Find Full Text PDF

Tuning by Hydrogen Bonding in Photosynthesis.

J Phys Chem B

September 2024

Institute of Physics, University of Tartu, W. Ostwaldi 1, 50411 Tartu, Estonia.

Hydrogen bonding plays a crucial role in stabilizing proteins throughout their folding process. In photosynthetic light-harvesting chromoproteins, enriched with pigment chromophores, hydrogen bonds also fine-tune optical absorption to align with the solar irradiation spectrum. Despite its significance for photosynthesis, the precise mechanism of spectral tuning through hydrogen bonding remains inadequately understood.

View Article and Find Full Text PDF

Leaf economics spectrum (LES) describes the fundamental trade-offs between leaf structural, chemical, and physiological investments. Generally, structurally robust thick leaves with high leaf dry mass per unit area (LMA) exhibit lower photosynthetic capacity per dry mass ( ). Paradoxically, "soft and thin-leaved" mosses and spikemosses have very low , but due to minute-size foliage elements, their LMA and its components, leaf thickness (LT) and density (LD), have not been systematically estimated.

View Article and Find Full Text PDF
Article Synopsis
  • A genomic database encompassing all eukaryotic species on Earth is crucial for scientific advancements, yet most species lack genomic data.
  • The Earth BioGenome Project (EBP) was initiated in 2018 by global scientists to compile high-quality reference genomes for approximately 1.5 million recognized eukaryotic species.
  • The European Reference Genome Atlas (ERGA) launched a Pilot Project to create a decentralized model for reference genome production by testing it on 98 species, providing valuable insights into scalability, equity, and inclusiveness for genomic projects.
View Article and Find Full Text PDF