Hypoxia promotes tumor immune evasion by suppressing MHC-I expression and antigen presentation.

Hypoxia is a common feature of solid tumors that has previously been linked to resistance to radiotherapy and chemotherapy, and more recently to immunotherapy. In particular, hypoxic tumors exclude T cells and inhibit their activity, suggesting that tumor cells acquire a mechanism to evade T-cell recognition and killing. Our analysis of hypoxic tumors indicates that hypoxia downregulates the expression of MHC class I and its bound peptides (i.

Midwives' experience of managing emergencies during labour and birth in a community setting: a mixed-methods systematic review.

Background: For women at low risk of complications during labour and birth, in the United Kingdom, planned birth in a 'community' setting (at home or a freestanding midwifery unit) is generally safe, and intrapartum emergencies are uncommon. Limited exposure may affect midwives' experience of managing an emergency.

Aim: Identify and synthesise available evidence about midwives' experiences of managing intrapartum emergencies during labour in a community setting.

Recent methane surges reveal heightened emissions from tropical inundated areas.

Record breaking atmospheric methane growth rates were observed in 2020 and 2021 (15.2±0.5 and 17.

Plasma Neurofilament Light Chain and Glial Fibrillary Acidic Protein as Biomarkers of Cognitive Decline in People Living with HIV.

Background: This study examined the relationship between neurofilament light chain (NfL) and glial fibrillary acidic protein (GFAP) and cognition in people living with HIV (PLWH) at baseline and over time.

Methods: Plasma and clinical data were available from PLWH aged ≥45 years with HIV RNA <200 copies/mL enrolled in the AIDS Clinical Trials Group HAILO cohort study. We measured plasma NfL and GFAP using a single molecule array platform.

Comparative analysis of chronic neuropathic pain and pain assessment in companion animals and humans.

Chronic neuropathic pain is underdiagnosed in companion animals. This paper will review the definition of pain and how classification and grading of neuropathic pain can be applied from human to veterinary medicine to increase the recognition of and the confidence in a neuropathic pain diagnosis. The mechanisms of nociception and the pathophysiology of the sensory systems that underlie the transition to chronic pain are described.