meanwhile, hypoxia-induced pulmonary vasoconstriction raises pulmonary artery pressure, and the kidneys respond by secreting erythropoietin to stimulate erythropoiesis in bone marrow, further augmenting red blood cell numbers ( 1.2.3 Increased blood viscosity and hemodynamic changes Due to the increased number of red blood cells and heightened hemoglobin concentrations, blood viscosity significantly rises under high-altitude conditions, presenting as increased resistance to blood flow, exacerbating the hearts workload, and potentially affecting microcirculation and overall circulatory efficiency ( 1.2.4 Tissue damage and pathological processes Long-term or severe hypoxia can trigger various tissue damages and pathological processes: Cellular Oxidative Stress: Cellular oxidative stress is a pathophysiological state in which the balance between intracellular oxidation and antioxidant action is upset in favor of the oxidative process, resulting in the abnormal accumulation of reactive oxygen species (ROS) such as superoxide anions (O2 ), hydrogen peroxide (HO), hydroxyl radicals (OH), etc

Multi-omics biomarkers hold significant potential for improving oocyte developmental competence assessment, personalized ovarian stimulation, endometrial receptivity mapping, and non-invasive embryo evaluation [5, 11,12,13, 16,17,18]
Hypoglycemia (low blood sugar) is the most commonly reported side effect
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Metabolic regulatory properties of S-adenosyl methionine and S-adenosylhomocysteine