Pharmacological Interventions for the Acute Treatment of Hyperkalaemia: A Systematic Review and Meta-analysis.

Background: Hyperkalaemia is a life-threatening electrolyte disturbance and also a potential cause of cardiac arrest. The objective was to assess the effects of acute pharmacological interventions for the treatment of hyperkalaemia in patients with and without cardiac arrest.

Methods: The review was reported according to PRISMA guidelines and registered on PROSPERO (CRD42023440553).

The ribotoxic stress response drives acute inflammation, cell death, and epidermal thickening in UV-irradiated skin in vivo.

Solar UVB light causes damage to the outermost layer of skin. This insult induces rapid local responses, such as dermal inflammation, keratinocyte cell death, and epidermal thickening, all of which have traditionally been associated with DNA damage response signaling. Another stress response that is activated by UVB light is the ribotoxic stress response (RSR), which depends on the ribosome-associated mitogen-activated protein 3 kinases (MAP3K) ZAKα and culminates in p38 and JNK activation.

Afterload-induced Decreases in Fatty Acid Oxidation Develop Independently of Increased Glucose Utilization.

Background: Metabolic substrate utilization in HFpEF (heart failure with preserved ejection fraction), the leading cause of heart failure worldwide, is pivotal to syndrome pathogenesis and yet remains ill defined. Under resting conditions, oxidation of free fatty acids (FFA) is the predominant energy source of the heart, supporting its unremitting contractile activity. In the context of disease-related stress, however, a shift toward greater reliance on glucose occurs.