Surface modification of multifunctional ferrite magnetic nanoparticles and progress in biomedicine / 生物医学工程学杂志

Magnetic ferrite nanoparticles (MFNPs) have great application potential in biomedical fields such as magnetic resonance imaging, targeted drugs, magnetothermal therapy and gene delivery. MFNPs can migrate under the action of a magnetic field and target specific cells or tissues. However, to apply MFNPs to organisms, further modifications on the surface of MFNPs are required. In this paper, the common modification methods of MFNPs are reviewed, their applications in medical fields such as bioimaging, medical detection, and biotherapy are summarized, and the future application directions of MFNPs are further prospected.

Progress of long non-coding RNA H19 in hematologic malignancies / 白血病·淋巴瘤

With the increasing incidence of hematologic malignancies, exploring its pathogenesis and new treatment strategies has become new research directions. The development of high-throughput sequencing technology has led to the recognition of long non-coding RNA, which plays an important role in the development of life and the regulation of diseases. As the first reported long non-coding RNA, H19 acts as an oncogene to take part in various pathological processes in the growth and metastasis of tumors. However, the multiple roles of H19 in hematologic malignancies are lack of systematic summary. This article reviews the role of H19 in carcinogenesis, progression and drug resistance mechanism of hematologic malignancies, in order to provide guidance for further research.

Effect of tiopronin combined with glutathione on biochemical indicators of patients with non-alcoholic fatty liver / 药学实践杂志

Objective To observe the effect of tiopronin combined with glutathione on the levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), glutamyltransferase (GGT),blood fat and laminin (LN) in patients with non-alcoholic fatty liver. Methods A total of 84 non-alcoholic fatty liver patients admitted to our hospital from March 2018 to September 2019 were selected and randomly divided into control group and observation group, with 42 cases in each group. The control group was treated with tiopronin, and the observation group was treated with glutathione and tiopronin. The levels of ALT, AST, GGT and blood fat were recorded and compared before and after treatment. Results After treatment, the levels of ALT, AST and GGT in the two groups were significantly lower than before treatment (P<0.05). After treatment, the levels of ALT, AST, and GGT in the observation group were different from those in the control group, which was statistically significant (P<0.05). Before treatment, there was no difference in serum TC, TG, and LDL levels between the two groups, which was not statistically significant (P>0.05). The above-mentioned serum levels of the observation group after treatment were lower than those in the control group, and there was a difference, which was statistically significant (P<0.05); the levels of PCⅢ, PCⅣ, and LN in the treatment group after treatment were significantly lower than those of the control group. The difference was statistically significant (P<0.05). Conclusion The application of tiopronin combined with glutathione in the treatment of non-alcoholic fatty liver can promote the recovery of liver function and reduce the concentrations of TC, TG and LDL, which is worthy of clinical promotion.

Fusobacterium nucleatum Prompts Colonic Tumorigenesis in Mice and its Potential Mechanism / 胃肠病学

Background:Accumulating evidence links colorectal cancer (CRC) with the gut microbiota.Fusobacterium nucleatum (F.nucleatum) has been revealed to be involved in the development of CRC, however, the mechanism of F.nucleatum in mediating colorectal tumorigenesis is still poorly understood.Aims:To investigate the effect and potential mechanism of F.nucleatum on CRC.Methods:Wild type C57BL/6 mice and APC(Min/+) mice characterized by multiple intestinal neoplasia were used in this animal study.After administered with F.nucleatum intragastrically and/or 1,2-dimethylhydrazine (DMH, a carcinogen) subcutaneously, the aberrant crypt foci (ACF) and colonic tumor were counted at 8th and 20th week, respectively.Structural alteration of intestinal microbiota and mucosal immune factors were detected in wild type C57BL/6 mice receiving different interventions by using Roche 454 GS FLX pyrosequencing and Bio-Plex ProTM cytokine assay, respectively.Results:In DMH-treated wild type C57BL/6 mice or APC(Min/+) mice, number of ACF and colonic tumor in those administered with F.nucleatum were significantly higher than those without (P<0.05).F.nucleatum colonization significantly altered the lumen microbial structure, with decreased Cyanobacterium and increased Tenericutes and Verrucomicrobia (P all <0.05).Furthermore, F.nucleatum up-regulated expressions of tumor-related immune factors in colonic mucosa, such as IL-21, IL-22, IL-31 and CD40L (P<0.05).Conclusions:F.nucleatum colonization in intestine may prompt colonic tumorigenesis in mice via inducing intestinal dysbiosis and modulating tumor-related immune factors expression.