Abstract: The present disclosure provides a polylactic acid composition and a method of preparing the same. The polylactic acid composition comprises a polymeric material and a reaction product obtained by reacting a compound represented by formula (A) with a compound represented by formula (B), the polymeric material comprising polylactic acid, the compound represented by formula (A) being a trimeric phosphazene-based substance, and the compound represented by formula (B) being diamine. The polylactic acid composition is favorable in both flame retardancy and toughness.

Abstract: Compositions and methods for diagnosing and treating multiple sclerosis (MS) and other health conditions involve collecting serum samples from a subject and exposing the serum samples to a protein capture composition, collecting the unbound eluent or flow-through, and measuring the levels of at least one immunoglobulin therein. Methods for differentiating between different types of MS also involve exposing serum samples to a protein capture composition and detecting immunoglobulin levels in the flow-through. Based on the detected immunoglobulin levels, an MS subtype is diagnosed in a subject and a treatment regimen can be adjusted or ceased according to the diagnosis.

Abstract: Provided are use of a rare earth amino acid complex, a polylactic acid composition and a preparation method thereof. The rare earth amino acid complex is formed by complexing a rare earth metal ion with an amino acid; a rare earth element corresponding to the rare earth metal ion is one or more selected from the group consisting of lanthanum, cerium and samarium; and the amino acid is at least one selected from the group consisting of proline, L-phenylalanine, tyrosine and tryptophan.

Abstract: Provided are use of a rare earth amino acid complex, a polylactic acid composition and a preparation method thereof. The rare earth amino acid complex is formed by complexing a rare earth metal ion with an amino acid; a rare earth element corresponding to the rare earth metal ion is one or more selected from the group consisting of lanthanum, cerium and samarium; and the amino acid is at least one selected from the group consisting of proline, L-phenylalanine, tyrosine and tryptophan.

Abstract: Use of Cistanche deserticola polysaccharide (CDP) in promoting the proliferation and differentiation of female germline stem cells (FGSCs) is provided. Specifically, the addition of CDP in an in vitro cultivation system can promote the proliferation and differentiation of FGSCs, and especially can enhance the in vitro directed differentiation of FGSCs into oocytes, which provides a new research reference for studying the generation of oocytes in vivo and in vitro and also brings a new hope for research on physiological infertility.

Abstract: A degradable regenerative medical material for promoting tissue in-situ regeneration and a preparation method therefor. The degradable regenerative medicine material is formed by means of chemically bonding Si, P, O and metallic elements containing calcium, and is a regular three-dimensional net structure the material of which having a nano-scale mesoporous structure is framework, and pores and micron-scale macropores that communicate with the pores are uniformly distributed in the regular three-dimensional net structure. The preparation method for the degradable regenerative medical material comprises the steps of mixing a sol, foaming, curing and calcining. The degradable regenerative medicine material has a huge specific surface area, powerful biological activity and high biological safety, has the effect of promoting cell proliferation, may induce the rapid regeneration of its own damaged tissue cells, and achieve an in-situ tissue repair function.

Abstract: Use of Cistanche deserticola polysaccharide (CDP) in promoting the proliferation and differentiation of female germline stem cells (FGSCs) is provided. Specifically, the addition of CDP in an in vitro cultivation system can promote the proliferation and differentiation of FGSCs, and especially can enhance the in vitro directed differentiation of FGSCs into oocytes, which provides a new research reference for studying the generation of oocytes in vivo and in vitro and also brings a new hope for research on physiological infertility.

Abstract: The methods disclosed herein include diagnosing a patient with MS, selecting a patient for further testing for MS, should the patient show elevated level of human IgG relative to an appropriate control. The methods also include differentiating subtypes of MS. The methods also include evaluating the efficacy of an MS drug or course of drug treatments, and/or treating MS. The methods include determining whether patients have elevated levels of IgG3-IgG1 immune complexes (which can include glycosylated IgG antibodies) in both blood and CSF. Methods also include diagnosing patients with primary-progressive MS (PPMS) and secondary-progressive MS (SPMS) where patients have higher levels of IgG3-IgG1 complexes in both CSF and blood, and reduced levels of albumin compared to patients with relapsing-remitting MS (RRMS).