Start here: chronic symptoms are real, but the cause can differ Some people have a clear infection that never fully clears, while others clear the germ yet keep fatigue, pain, and brain fog, and that splits what testing and care make sense next
Determination of targeted metabolites in serum A total of 34 target metabolites were examined: L-tryptophan (Trp), L-kynurenine (Kyn), kynurenic acid (KYNA), 5-hydroxytryptamine (5-HT), D-serine (D-Ser), D-lactate, L-lactate, 3-hydroxybutyrate (3-HB), GSH, -glutamylcysteine (GluCys), cysteine (Cys), cysteinylglycine (CysGly), L-amino acids (His, Arg, Gln, Ser, Asn, Glu, Gly, Pro, Thr, Ala, Leu, Ile, Val, Phe, Lys, and Tyr), fatty acids [linoleic acid (LA), arachidonic acid (AA), oleic acid, linolenic acid, and palmitoleic acid], and glucose
Study has proven that TGF- signaling in retinal endothelial cells is amplified in early DR, promoting collagen cross-linking and basement membrane rigidity ( 2.1.2 Pericyte apoptosis Pericyte apoptosis is universally recognized as the earliest functionally significant and morphologically identifiable lesion in diabetic retinopathy, occurring months to years before microaneurysms become visible clinically
Statistical analysis All results were displayed as mean SEM
