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Abbkine: Abbkine – Antibodies, proteins, biochemicals, assay kits for life science research

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Glutamate: The Brain's Primary Excitatory Neurotransmitter

Glutamate is the most abundant excitatory neurotransmitter in the mammalian central nervous system—responsible for the vast majority of fast excitatory synaptic transmission. Beyond its role in neurotransmission, glutamate is a key metabolite in the glutamate-glutamine cycle, linking neurotransmitter pools to e...


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SOD: The First Line of Enzymatic Antioxidant Defense

Superoxide dismutase (SOD) is the enzyme that catalyzes the dismutation of the superoxide radical (O₂⁻) to hydrogen peroxide and molecular oxygen—one of the most critical antioxidant reactions in biology. SOD exists in three forms: cytosolic Cu/Zn-SOD (SOD1), mitochondrial Mn-SOD (SOD2), and extracellular SOD (SOD3)....


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cTn-I: The Unmistakable Signature of Myocardial Damage

Cardiac troponin I (cTn-I) is one of three subunits of the troponin complex in cardiac muscle—alongside troponin T (TnT) and troponin C (TnC)[reference:35]. As the inhibitory subunit, TnI prevents actin-myosin interaction in the absence of calcium. But more importantly, cTn-I is exclusively expressed in cardiac mus...


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E2-Ab: The Autoantibody That Tracks Estrogen Exposure

Estradiol (E2) is the most potent endogenous estrogen, essential for female reproductive function and present at lower levels in males. But estradiol is not only a hormone—it can also act as a hapten, triggering the production of anti-estradiol antibodies (E2-Ab). Quantifying E2-Ab levels provides insight into estro...


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Catalase: The Cell's Hydrogen Peroxide Scavenger

Catalase (CAT) is a heme-containing enzyme that catalyzes the decomposition of hydrogen peroxide (H₂O₂) to water and oxygen—one of the most efficient enzymatic reactions in biology, with a turnover rate of millions of molecules per second. Alongside superoxide dismutase (SOD) and glutathione peroxidase (GPx), catalase fo...


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