Additionally, Yen et al
PeerJ 11:e15733 Liang D, Yang Q, Tan B, Dong X, Chi S, Liu H, Zhang S (2020) Dietary vitamin A deficiency reduces growth performance, immune function of intestine, and alters tight junction proteins of intestine for juvenile hybrid grouper ( Epinephelus fuscoguttatus Epinephelus lanceolatus )
DEG comparison between sensitized vs resolved USCs, also supporting ED Fig
Every study does not prove direct causation, but the results allow the development of a larger hypothesis for definitive testing

Vitamin B12 injections deliver B12 deeply into the muscle or just under the skin, allowing it to bypass the digestive system and enter the bloodstream for rapid absorption. This route is especially helpful for people who cannot absorb B12 well from diet or oral supplements, including those with digestive disorders, certain medications, or longstanding deficiency. Clinical experience and clinical studies show that B12 injections are one of the most efficient ways to restore low B12 levels, often improving energy levels, mental clarity, and overall wellness. Many patients report more energy, better sleep, and improved mood after regular B12 supplementation, though results can vary and should always be guided by a healthcare provider. Where You Can Get B12 Injections There are several safe, reputable places to receive vitamin B12 injections, each with different levels of medical oversight and convenience. Primary care and specialist clinics Your primary care physician is the standard starting point to check B12 levels, diagnose deficiency with a blood test, and prescribe injections when appropriate. In these settings, injections are administered in the care teams office by nurses or other medical professionals, where patients can also consult healthcare providers for instructions and scheduling

Beyond their primary indications in treating type 2 diabetes and high BMI, these medications have demonstrated potential benefits in addressing many of the conditions associated with NAION including hypertension, hyperlipidemia and obstructive sleep apnea, they wrote, likely as a result of their weight loss effects