Research progress of targeted drug use related to nanoparticles / 中国基层医药

Nanoparticles refer to particles having a particle size between 1 and 100 nm.Nanomaterials also have many applications in medicine and bioengineering.They have some physical properties that can effectively guide drugs into specific tissues and specific sites.For a long time, clinicians have been plagued by adverse drug reactions.Most drugs cannot be concentrated in targeted sites(tissue, organs, cells, etc.) due to pharmacokinetics.Scientists have been seeking a way to enter through various channels.In vivo, a drug that is distributed at a targeted site.This article will review the characteristics of nanoparticles in targeted therapy, the characteristics of in vivo distribution and current relevant application prospects.

Diagnostic value of different imaging methods for cholangiocarcinoma / 中华全科医师杂志

Cholangiocarcinoma is a malignant tumor that occurs in the bile duct epithelium,it is the second most common malignant tumor of the liver and bile duct after hepatocellular carcinoma.Imaging examination is an important method to detect bile duct cancer;the purpose of imaging is to determine the location of the tumor,and the extent of invasion and distant metastasis.Different imaging methods have their advantages and disadvantages,so they should be chosen based on the condition of patients,or be optimized as the combined detection.