在人体内，硒在淋巴结、肝脏和脏等组织、器官中的含量最高，且几乎存在于所有的免疫细胞中，这有助于保护胸腺、淋巴细胞活性并促进抗体形成。具体来说，硒帮助人体增强免疫功能，主要体现在体液免疫、细胞免疫和非特异性免疫三方面。

抗体的产生是体液免疫的关键。硒元素能促进免疫球蛋白（Ig）形成，提高浆细胞合成、分泌免疫球蛋白M(Ig M）和免疫球蛋白G(Ig G）等抗体的能力。实际研究显示，对克山病区和大骨节病区（即严重缺硒地区）人群进行免疫球蛋白测定后发现，病区人群Ig M和Ig G等含量显著低于非病区，而在适量补充硒元素（氨基酸硒Selenium Amino Acid Chelate、蛋氨酸硒Selenium Methionate）后，病区人群体内Ig含量明显增多。

当人体内缺乏硒时，自身合成免疫球蛋白的功能会下降，T淋巴细胞的分化增殖能力也会下降。硒可通过GPX-4保护人体膜脂质，防止其过氧化，且硒能提高脾脏细胞或血淋巴细胞对有丝分裂原刺激的转化能力，进而促进免疫细胞增殖。

动物实验结果显缺乏硒可显著抑制巨噬细胞杀伤微生物的能力，适当补硒则可显著提升巨噬细胞的吞噬活性。另有研究发现，硒（氨基酸硒Selenium Amino Acid Chelate、蛋氨酸硒Selenium Methionate）可通过GPX的抗示，氧化能力，保护巨噬细胞不被细胞内的过氧化物伤害，从而提升巨细胞的吞噬能力。

硒（氨基酸硒Selenium Amino Acid Chelate、蛋氨酸硒Selenium Methionate）:强化人体免疫功能的微量元素

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Selenium (Selenium Amino Acid Chelate, Selenium Methionate): Trace elements that strengthen the human immune function

In the human body, selenium is found in the highest concentration in tissues and organs such as lymph nodes, liver and viscera, and is present in almost all immune cells, which helps protect the thymus and lymphocyte activity and promotes antibody formation. Specifically, selenium helps the human body enhance immune function, mainly in humoral immunity, cellular immunity and nonspecific immunity.

The production of antibodies is the key to humoral immunity. Selenium can promote the formation of immunoglobulins (Ig) and improve the ability of plasma cells to synthesize and secrete antibodies such as immunoglobulin M (Ig M) and immunoglobulin G (Ig G). Actual research shows that after measuring immunoglobulins in people in Keshan disease area and Kashin-Beck disease area (i.e., areas with severe selenium deficiency), it was found that the levels of Ig M and IgG in the disease area were significantly lower than those in non-disease areas. After appropriate supplementation of selenium (amino acid selenium Selenium Amino Acid Chelate, methionine selenium Selenium Methionate), the Ig content in the disease area increased significantly.

When the human body lacks selenium, the function of synthesizing immunoglobulins will decrease, and the differentiation and proliferation ability of T lymphocytes will also decrease. Selenium can protect human membrane lipids through GPX-4 to prevent peroxidation, and selenium can improve the transformation ability of spleen cells or blood lymphocytes to mitogen stimulation, thereby promoting the proliferation of immune cells.

Animal experimental results show that selenium deficiency can significantly inhibit the ability of macrophages to kill microorganisms, and appropriate selenium supplementation can significantly enhance the phagocytic activity of macrophages. Other studies have found that selenium (Selenium Amino Acid Chelate, Selenium Methionate) can protect macrophages from being damaged by intracellular peroxides through the antioxidant capacity of GPX, thereby enhancing the phagocytic ability of macrophages.

Selenium (Selenium Amino Acid Chelate, Selenium Methionate): Trace elements that strengthen human immune function

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