Annals of medicine
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Disturbed circadian rhythms have been a risk factor for type 2 diabetes mellitus (T2DM). Melatonin is the major chronobiotic hormone regulating both circadian rhythm and glucose homeostasis. The rs10830963 (G allele) of the melatonin receptor 1B (MTNR1B) gene has the strongest genetic associations with T2DM according to several genome-wide association studies. ⋯ The rs10830963 G risk allele is associated with delayed melatonin secretion onset in dim-light and prolonged duration of peak melatonin. This delayed melatonin secretion may help human ancestors adapt to famine or food shortages during long nights and early mornings and avoid nocturnal hypoglycemia but confers susceptibility to T2DM due to adequate energy intake in modern society. We provide new insight into the role of MTNR1B variants in T2DM via disturbed circadian rhythms from the perspective of the "thrifty gene" hypothesis; these data indicate a novel target for the prevention and treatment of susceptible populations with the thrifty genotype.
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Dry eye disease (DED) is a multifactorial disorder characterized by loss of tear film homeostasis with an estimated worldwide prevalence of 5% to 50%. In DED, dysfunction of the ocular structures that create and regulate the tear film components-including the lacrimal glands, meibomian glands, cornea, and conjunctiva-causes a qualitative and/or quantitative tear deficiency with resultant tear film instability and hyperosmolarity. This initiates a vicious cycle of ocular surface inflammation and damage that may ultimately impair the quality of life and vision of affected patients. ⋯ Key messagesSuccessful management of dry eye disease often requires the use of various pharmacologic and/or nonpharmacologic therapies, as well as environmental and lifestyle modifications, to mitigate the underlying etiologies and restore tear film homeostasis. Primary care clinicians play an essential role in dry eye disease management by establishing a diagnosis, educating patients about the disorder, and providing referrals to eye care specialists for initiation of specialized treatment and long-term follow-up. Primary care clinicians and clinical specialists should consider prescribing medications with fewer ocular surface effects whenever possible in patients at risk for or with existing dry eye disease.
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Obesity is a chronic disease characterised by excess adiposity, which impairs health. The high prevalence of obesity raises the risk of long-term medical complications including type 2 diabetes and chronic kidney disease. Several studies have focused on patients with obesity, type 2 diabetes and chronic kidney disease due to the increased prevalence of diabetic kidney disease. ⋯ Key messageObesity is a driver of chronic kidney disease, and type 2 diabetes, along with obesity, accelerates chronic kidney disease. Several randomized controlled trials on sodium-glucose cotransporter 2 inhibitors, glucagon-like peptide-1 analogues, and bariatric surgery in diabetic kidney disease demonstrate the improvement of renal outcomes. There is a need to address the treatment of patients with obesity and CKD to lessen morbidity.
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Tumour-associated endothelial cells (TECs) are a critical stromal cell type in the tumour microenvironment and play central roles in tumour angiogenesis. Notably, TECs have phenotypic plasticity, as they have the potential to transdifferentiate into cells with a mesenchymal phenotype through a process termed endothelial-to-mesenchymal transition (EndoMT). ⋯ In this review, we comprehensively explore the phenomenon of EndoMT in the tumour microenvironment and identify influencing factors and molecular mechanisms responsible for EndoMT induction. Furthermore, the pathological functions of EndoMT in tumour progression and potential therapeutic strategies for targeting EndoMT in tumour treatment are also discussed to highlight the pivotal roles of EndoMT in tumour progression and therapy.
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We investigated the knowledge of COVID-19 pathogenesis and prevention, attitude, and adherence to safe clinical practices among radiographers during the pandemic and made some informed policy recommendations. ⋯ Participants' adherence to standard COVID-19 precautions was low. The level of professional qualification influenced participants' knowledge and safe practices during the pandemic. Upgrading the aseptic techniques and amenities in practice settings and broadening the infectious diseases modules in the entry-level and continuous professional education may improve radiographers' response to COVID-19 and future pandemics.Key messagesRadiographers whose qualifications were lower than a bachelor's degree had significantly less knowledge of COVID-19 prevention.Generally, radiographers had a positive attitude towards safe practices during the pandemic, but inadequate education, standard operational guidelines and resources affected their level of adherence.Apart from the shortage of personal protective equipment, poor infrastructural design and inadequate hygienic facilities such as handwashing stations, running water and non-contact hand sanitizer dispensers hampered adherence to COVID-19 precautions in low-resource settings.