Publications by authors named "A J Puttick"

Recent developments in the fields of natural language processing (NLP) and machine learning (ML) have shown significant improvements in automatic text processing. At the same time, the expression of human language plays a central role in the detection of mental health problems. Whereas spoken language is implicitly assessed during interviews with patients, written language can also provide interesting insights to clinical professionals.

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Burnout, a state of emotional, physical, and mental exhaustion caused by excessive and prolonged stress, is a growing concern. It is known to occur when an individual feels overwhelmed, emotionally exhausted, and unable to meet the constant demands imposed upon them. Detecting burnout is not an easy task, in large part because symptoms can overlap with those of other illnesses or syndromes.

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Clathrin-mediated endocytosis (CME) is a major route of entry into eukaryotic cells. A core of evolutionarily ancient genes encodes many components of this system but much of our mechanistic understanding of CME is derived from a phylogenetically narrow sampling of a few model organisms. In the parasite Trypanosoma brucei, which is distantly related to the better characterised animals and fungi, exceptionally fast endocytic turnover aids its evasion of the host immune system.

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Associations were sought between major histocompatibility complex (MHC) genes on chromosome 6 and the complement component C3 and immunoglobulin genes located on other chromosomes which might contribute to susceptibility to mild inflammatory arthritis (IA) or definite rheumatoid arthritis (RA). Frequencies of the complement C3F allele were raised in patients with IA but were normal in patients with RA and controls. When associations between C3F and MHC genes were sought frequencies of some MHC genes were greater in patients with C3F than in those without--for example, HLA-B8 and DR3 in patients with RA and DR2 in patients with IA.

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Patients with mild inflammatory arthritis (IA) were compared with patients with definite rheumatoid arthritis (RA) for abnormal frequencies of major histocompatibility complex (MHC) antigens and haplotypes to determine whether a genetic predisposition either to RA or to mild self-limiting arthritis/arthralgia was present in the patients with IA. In general the MHC antigens with abnormal frequencies found in patients with IA differed from those in patients with RA and were mainly at the A and B loci. In patients with IA the frequencies of HLA-A24, A25, B27, and B35 antigens were significantly higher than those of controls and HLA-DR5 and C4A4 were slightly raised.

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