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HeiDE is a longitudinal population-based study that started in the 1990s and, at baseline, assessed an array of health-related personality questionnaires in 5133 individuals. Five latent personality dimensions (The Heidelberg Five) were identified and interpreted as Emotional Lability (ELAB), Lack of Behavioral Control (LBCN), Type A Behavior (TYAB), Locus of Control over Disease (LOCC), and Psychoticism (PSYC). At follow-up, 3268 HeiDE participants (post-QC) were genotyped on single nucleotide polymorphism (SNP) arrays. To further characterize The Heidelberg Five, we analyzed genomic underpinnings, their relations to the genetic basis of the Big Five trait Neuroticism, and longitudinal associations with psychiatric symptoms at follow-up. SNP-based heritability was significant for ELAB (34%) and LBCN (29%). SR-4370 solubility dmso A genome-wide association study for each personality dimension was conducted; only the phenotype PSYC yielded a genome-wide significant finding (p less then 5 × 10-8 , top SNP rs138223660). Gene-based analyses identified significant findings for ELAB, TYAB, and PSYC. Polygenic risk scores for Neuroticism were only associated with ELAB. Each of The Heidelberg Five was related to depressive symptoms at follow-up. ELAB, LBCN, and PSYC were also associated with lifetime anxiety symptoms. These results highlight the clinical importance of health-related personality traits and identify LBCN as a heritable "executive function" personality trait.
Cytoreductive surgery (CRS) with hyperthermic intraperitoneal early chemotherapy has gained acceptance as the standard of care for peritoneal surface malignancy over the past decade. This study reports the results of the first 6 years of activity of the Western Australian Peritonectomy Service to compare outcomes of a low-volume centre with world standards.
An audit of all patients who received CRS ± hyperthermic intraperitoneal early chemotherapy treatment at the Western Australian Peritonectomy Service in its first 6 years of operation was performed and results were compared to the recent world literature.
A total of 130 patients were treated with 150 CRS procedures, including 50 pseudomyxoma peritonei (PMP), 53 colorectal cancers (CRCs), 27 appendix adenocarcinomas (AAs) and 20 other cancers. The median operating time was 12 h with median length of hospital stay of 15 days. Perioperative mortality was 0.67% and Clavien-Dindo III/IV morbidity was 20%. The mean packed red cell transfusion requirement was 0.34 units/case. Post-discharge readmission rate was 25% and the return to theatre rate was 13%. The 4-year overall survival rates for PMP, CRC and AA were 97%, 49% and 81%, respectively. The 3-year disease-free survival rates for PMP, CRC and AA were 74%, 26% and 36%, respectively.
A CRS centre averaging 25 cases per year can achieve strong outcomes in line with high-volume world centres.
A CRS centre averaging 25 cases per year can achieve strong outcomes in line with high-volume world centres.
One of the sectors challenged by the COVID-19 pandemic is medical research. COVID-19 originates from a novel coronavirus (SARS-CoV-2) and the scientific community is faced with the daunting task of creating a novel model for this pandemic or, in other words, creating novel science. This paper is the first part of a series of two papers that explore the intricate relationship between the different challenges that have hindered biomedical research and the generation of scientific knowledge during the COVID-19 pandemic.
During the early stages of the pandemic, research conducted on hydroxychloroquine (HCQ) was chaotic and sparked several heated debates with respect to the scientific methods used and the quality of knowledge generated. Research on HCQ is used as a case study in both papers. The authors explored biomedical databases, peer-reviewed journals, pre-print servers, and media articles to identify relevant literature on HCQ and COVID-19, and examined philosophical perspectives on medical research in the context of this pandemic and previous global health challenges.
This paper demonstrates that a lack of prioritization among research questions and therapeutics was responsible for the duplication of clinical trials and the dispersion of precious resources. Study designs, aimed at minimising biases and increasing objectivity, were, instead, the subject of fruitless oppositions. The duplication of research works, combined with poor-quality research, has greatly contributed to slowing down the creation of novel scientific knowledge.
The COVID-19 pandemic presented challenges in terms of (1) finding and prioritising relevant research questions and (2) choosing study designs that are appropriate for a time of emergency.
The COVID-19 pandemic presented challenges in terms of (1) finding and prioritising relevant research questions and (2) choosing study designs that are appropriate for a time of emergency.
This study aims to assess the trend of hepatitis B virus (HBV)-attributable liver cancer as well as the impact of HBV vaccine on it.
We retrieved data from Global Burden Disease study to estimate trends of HBV-attributable liver cancer by region and age from 1990 to 2017 and HBV vaccine data from World Health Organization to assess its impact on these trends for children (0-14years), adolescents and young adults (15-29years). Change of cancer cases, age-standardized incidence rate (ASR) and estimated annual percentage change (EAPC) were used to quantify the trends of HBV-attributable liver cancer.
In this study, reduction in HBV-attributable cancer incident cases was found among children (from 2080 to 1430), adolescents and young adults (from 10890 to 9090). In terms of ASR, overall reduction was observed globally by an average of -0.45% (95% CI -0.62 to -0.29) per year in the same period. The highest reduction in ASR was found in adolescents and young adults with EAPC of -3.02 (95% CI -3.57 to -2.46). Although the ASR has decreased from all the five regions with universal HBV immunization programme, it has increased in the region without universal vaccination and the highest increase was found among children with EAPC of 1.97 (95% CI 1.71-2.23).
Significant reduction in HBV-attributable liver cancer among children was mainly because of the universal HBV vaccination. However, the increasing trend of HBV-attributable liver cancer in region without universal HBV vaccination suggested the necessity of introducing universal immunization.
Significant reduction in HBV-attributable liver cancer among children was mainly because of the universal HBV vaccination. However, the increasing trend of HBV-attributable liver cancer in region without universal HBV vaccination suggested the necessity of introducing universal immunization.
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