Recent research on tofacitinib in the treatment of pediatric rheumatic diseases / 中国当代儿科杂志

Tofacitinib is a Janus kinase inhibitor and can block the Janus kinase-signal transducer and activator of transcription signal transduction pathway and reduce the production and release of a variety of cytokines. It has great potential in the treatment of various rheumatic diseases with a rapid onset of action and can reduce corticosteroid dependence and related adverse events. The therapeutic effect of tofacitinib in adult patients has been confirmed, and it has been increasingly used in pediatric patients in recent years. This article reviews the clinical application of tofacitinib in the treatment of pediatric autoimmune diseases.

Research progress of DOT1L inhibitors in cancer / 药学学报

Histone H3 lysine 79 (H3K79) methyltransferase DOT1L plays an important role in the activation and maintenance of gene transcription; it is also essential for maintenance of embryonic development, as well as the normal function of hematopoietic system, heart and kidney. However, the over expression of DOT1L is associated with the occurring and progress of numerous malignant tumors, so more and more attention has been paid to DOT1L. Therefore, it is of great significance to study and develop inhibitors of DOT1L. The inhibitors could serve as a tool in the investigation of the biological function, and have the potential to be developed into novel anti-cancer agents in the anticancer therapy. This paper mainly describes the structure and function of DOT1L, the relationship between DOT1L and tumors as well as the latest research progress of DOT1L inhibitors; with expect to provide some useful references for the subsequent research.

Discussion of development and validation of dissolution methods for solid oral dosage forms / 药学学报

It is generally assumed that study of in vitro dissolution can reveal the in vivo behavior and bioavailability of a drug. The dissolution test indisputably plays a vital role in the research and development of pharmaceutical preparations as well as routine quality control of approved drugs. In order to develop an ideal dissolution method, the physicochemical properties of drug and the characteristics of its dosage form should be considered, and a proper dissolution condition be established to simulate the in vivo dissolution behavior of drugs. The new dissolution method should have the required characteristics of accuracy and durability, but also could distinguish pharmaceutic preparations with different quality. In recent years, there have been more and more reports on the establishment and verification of dissolution methods for oral solid dosage forms. However, there is very few review articles on the topic. According to the latest guidelines by domestic and foreign drug organizations, this review paper is prepared to summarize the most important skills and progress in the development of dissolution methods for oral solid preparations. The aim is to provide a reference for the development and validation of new dissolution methods.