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Another study 4 found that the use of NAC during IVF could improve the quality of blastocysts in advanced-age women

Hyperhomocysteinemic subjects also had raised serum levels of MMP-9 comparing healthy controls, and although IL-10 markedly suppressed MMP-9 release from PBMCs in controls, no or only minor effect was seen in hyperhomocysteinemic subjects [91]

Lin J, Wang X, Zhai S, Shi M, Peng C, Deng X, et al

Other side effects Additional reported side effects include: Joint pain and water retention Muscle and joint aches Headaches and nausea Receptor desensitization with prolonged use Potential suppression of natural GH and IGF-1 production Who should avoid IGF-1 LR3 Certain groups should not use IGF-1 LR3: Anyone with active cancer or tumor history Those with severe insulin resistance or diabetes Pregnant or nursing women Anyone under 25 whose growth plates haven't closed Those with existing hormonal imbalances IGF-1 LR3 is not FDA-approved for general medical use and remains primarily a research compound