GH is also expressed in other areas of the brain, such as the cortex, hippocampus, cortex, caudate nucleus, and retinal areas (307), as is the GH receptor, IGF-1, and the IGF-1 receptor, where it is thought that these mediate neuroprotective and regenerative functions (308)
ARA-290 improved neuropathic symptoms and metabolic markers in type 2 diabetes patients
Analysis of the D dhar mutant showed that DHARs are required to couple hydrogen peroxide metabolism to glutathione oxidation, and that this is functionally important for downstream activation of the salicylic acid pathway
J Comp Neurol
You should not take cyanocobalamin-based products if you: Have a known cobalt allergy Have Lebers hereditary optic neuropathy , as B12 can worsen vision in this condition Discuss nasal B12 with your clinician first if you have: Severe megaloblastic anemia Polycythemia vera or other bone marrow disorders Low iron or folate Kidney disease Are undergoing chemotherapy or using bone marrowsuppressing drugs Are pregnant or breastfeeding Possible Side Effects Most side effects reported with B12 nasal products are mild and temporary: Slight nasal irritation, burning, or dryness Runny or stuffy nose, sneezing, or sore throat Mild headache Nausea or a brief metallic taste Tingling or pins and needles sensations, especially early on as nerves recover Serious reactions are rare but require immediate medical care: Rash, hives, or intense itching Swelling of the face, lips, tongue, or throat Trouble breathing or swallowing Fever, chills, or signs of infection that dont match a simple cold If anything feels out of proportion or youre unsure, stop the product and speak with your healthcare provider or seek urgent care
