M.ZurloJ.YagerJ
In these cases, we often see a flatline pattern, where hydrogen and methane levels stay low for the full duration of the test (typically 120 minutes), even when the person has clear SIBO symptoms
The unfolded protein response, the stress-induced quality control system of the endoplasmic reticulum, is activated not only by the accumulation of unfolded or misfolded proteins in the lumen of the endoplasmic reticulum, but also by signaling lipids, including sphingolipids, and by the potentially harmful excess of lipid species such as saturated fatty acids, ceramides and cholesterol (Kono et al., 2017)
Common symptoms include fatigue, brain fog, mood changes, memory issues, and neurological symptoms like tingling or numbness in hands and feet