1.Efficacy comparison between gemcitabine combined with nedaplatin and paclitaxel combined with nedaplatin in treatment of locally advanced nasopharyngeal carcinoma
Xuebing PAN ; Yu HE ; Junwei SHAO ; Mantian YAO ; Jun JIA
Cancer Research and Clinic 2017;29(6):394-397
Objective To investigate the effect of gemcitabine, paclitaxel combined with nedaplatin in treatment of locally advanced nasopharyngeal carcinoma. Methods 40 patients diagnosed as locally advanced nasopharyngeal carcinoma from May 2012 to August 2014 were randomly divided into observation group and control group. Patients in the observation group received gemcitabine plus nedaplatin chemotherapy, while those in the control group received paclitaxel plus nedaplatin chemotherapy. Then chemotherapy effect, adverse reactions, survival time and tumor marker contents were compared. Results The effective rate of the observation group was 65 % (13/20), which was higher than that (30 %, 6/20) of the control group (χ2 = 4.912, P< 0.05), however, there were no statistically differences in gastrointestinal reactions, bone marrow suppression, liver damage, kidney damage between groups (P> 0.05). Before chemotherapy, the SCCAg and CYFRA21-1 content of the control group were (2.30 ±0.31) ng/L and (18.27±2.19)μg/L, and the observation group were (2.34±0.27) ng/L and (18.48±2.25)μg/L, and there was no significant difference between the groups (P>0.05). After chemotherapy, the SCCAg and CYFRA21-1 content of the control group were (1.92±0.22) ng/L and (13.72±1.74) μg/L, and the observation group were (1.20 ±0.15) ng/L and (8.49 ±0.91) μg/L (P= 0.000). Conclusion Gemcitabine combined with nedaplatin chemotherapy can improve the chemotherapy effect and reduce tumor marker content, without increasing more adverse reactions, which is an ideal chemotherapy regimen for advanced nasopharyngeal carcinoma.
2.Role and mechanism of indole-3-propionic acid improving metabolic associated fatty liver disease by regulating adipose tissue metabolism
Yu YAO ; Pengfei HOU ; Min ZHOU ; Hedong LANG ; Minghua LIU ; Long YI ; Mantian MI
Journal of Army Medical University 2024;46(9):919-927
Objective To explore the role of indole-3-propionic acid(IPA)in the pathogenesis of metabolic associated fatty liver disease(MAFLD)induced by high-fat diet(HFD)in order to reveal the role and related mechanism of adipose tissue metabolism in the process.Methods A mouse model of MAFLD was induced by HFD.Male C57BL/6J mice(6~7 weeks old)were randomly divided into control group(CON),HFD group,and HFD+IPA intervention group(HFD+IPA).The CON group was fed with control diet,and the HFD group and HFD+IPA group were fed with 60%of high-fat diet.The experiment period was 12 weeks,and IPA was administered at 20 mg/(kg·d)for 6 weeks starting from the 7th week.The body weight and food intake of each group were monitored weekly.After the intervention,the body composition of mice was detected by animal body composition analyzer.After the mice were euthanized,the morphological and structural changes in the liver and adipose tissues were observed by HE staining,the indicators relevant to lipid metabolism in the serum,l iver and adipose tissues were detected by automatic blood biochemical analyzer and biochemical kits,and the mRNA expression changes of lipid metabolism and inflammation related genes were detected by qRT-PCR.Results Compared with the CON group,the HFD group had significantly increased body weight and body fat percentage,obvious lipid deposition in the liver,obviously elevated serum alanine aminotransferase,aspartate aminotransferase,liver triglyceride and total cholesterol levels(P<0.05),and raised mRNA levels of liver fatty acid transporter CD36(P<0.05),while IPA intervention significantly reversed the above changes(P<0.05).IPA intervention significantly inhibited the HFD-induced enlargement of visceral and brown fat cells,reduced the content of visceral adipose tissue(VAT)and serum level of free fatty acids(P<0.05),and increased the mRNA expression levels of VAT lipolysis(HSL,CGI58),browning genes(Cidea,ND5,UCP1,Prdm16)(P<0.05),as well as those of brown adipose tissue(BAT)lipolysis(HSL,ATGL)and fatty acid beta oxidation(Cpt1a,PPARα)genes(P<0.05).Meanwhile,the mRNA levels of TNF-α,IL-1β,CXCL1 and CCL2 in VAT and BAT were decreased after IPA intervention(P<0.05).Conclusion IPA can improve the occurrence of MAFLD induced by HFD,and its mechanism may be closely associated with its regulation of BAT and VAT morphology,and the mRNA expression of metabolic function and inflammation related genes.