They sit near the top of the evidence hierarchy, just below meta-analyses (which combine multiple RCTs)
Subjects homozygous for this mutation ( MTHFR 677TT genotype) exhibit reduced MTHFR activity and increased risk for a wide variety of cancers (41-43), but the evidence of an association between this polymorphism and cancer is inconsistent, with some reports suggesting a reduction in colorectal cancer risk with the T allele (44)
Vice versa, direct occlusion of the superior mesenteric vessels, vein, artery, or vein and artery (i.e., portal, caval hypertension, aortal hypotension, peripheral lesions) rapidly induced the intracranial (superior sagittal sinus) hypertension, brain swelling, and lesions [14,15,16]
Hair Growth: Emerging research indicates potential benefits for hair follicle health and stimulation of hair growth, making it an ingredient in some hair care products