OBJECTIVE To explore the lipid-regulating mechanism of the classic prescription Zexie Decoction on hyperlipidemia model mice.METHODS ELISA method was used to detect the four blood lipid indexes,liver function indicators and cholesterol acyltransferase levels in serum.HE and Oil Red O staining were used to determine the pathology of liver tissue.Network pharmacology was used to predict the lipid-lowering related targets of Zexie Decoction,and the GO function and KEGG pathway enrichment analyses of the intersection targets were realized.PCR chip technology was used to detect the target genes for network pharmacology screening,and qPCR and Western blot were used to detect gene and protein expression levels.RESULTS Zexie Decoction significantly regula-ted the four blood lipid indexes in hyperlipidemia model mice,improved the increase in liver damage indicators caused by high lipids,and had a reverse regulatory effect on the key enzymes HMGR and CYP7A1 of lipid metabolism and the lipid transporters ABCA1 and Apo-A1 in liver tissue.HE and Oil Red O staining showed that Zexie Decoction improved the pathological morphology of liver tissue,reduced lipid deposition in liver tissue,and significantly decreased the positive area ratio(P<0.01).The PCR chip obtained 44 re-verse-regulated genes,GO functional enrichment analysis obtained 266 entries,and KEGG pathway enrichment analysis screened 99 signaling pathways.The results of qPCR and Western blot showed that Zexie Decoction significantly downregulated the expression of PIK3CG,AKT1,and IL-6 genes(P<0.05,P<0.01),upregulated the expression of ABCG1 gene(P<0.05),downregulated PI3Kinase p110β,p-AKT(Ser473)and SREBP-1c protein expression levels(P<0.01),and reversely regulated miR21-5p(P<0.01).CONCLUSION Zexie Decoction has a significant regulatory effect on lipid metabolism in hyperlipidemia model mice and can improve liver damage caused by hyperlipidemia.Its lipid-regulating effect may be related to regulating cholesterol metabolism and transport in the body,and is closely linked to the miR21/PI3K-Akt/SREBP pathway.The lipid-regulating effect of the whole formula of Zexie Decoction is better than that of a single herb.

Objective:To evaluate the efficacy and safety of domestic recombinant human follicle-stimulating hormone (rhFSH) in assisted reproductive technology (ART) of controlled ovarian hyperstimulation (COH).Methods:In a multicenter, randomized, double-blind, positive, parallel controlled non-inferiority clinical trial, the infertile women with normal ovarian reserve who received ART-COH in six reproductive medical centers from July 2017 to June 2019 were randomly divided into two groups: experimental group (domestic rhFSH, n=134) and control group (imported rhFSH, n=133). Eight subjects were excluded due to various reasons during the experimental process, 7 in experimental group and 1 in control group. At last, 127 subjects in experimental group and 132 subjects in control group complete the experiment following the research protocol. The total number of oocytes, usage of FSH, fertilization rate of oocytes, the number of high-quality embryos, clinical pregnancy rate, live birth rate, neonatal characteristics and the incidence of adverse reactions were compared between the two groups during the cycle of COH. Results:During the initiation cycle of ovulation induction therapy, the total number of oocytes obtained in experimental group and control group were 13.0±5.8 and 12.9±5.7, respectively, with no statistically significant difference ( P>0.05). Among the 82 intracytoplasmic sperm injection (ICSI) patients, the number of M II oocytes obtained in experimental group (39 cases) was markedly higher than that in control group (43 cases) (9.9±3.9 vs. 7.5±3.0, P=0.003). The fertilization rate of oocytes in experimental group was obviously higher than that in control group [63.82% (1048/1642) vs. 56.19% (958/1705), P<0.001]. There were no significant differences of stimulated duration and dosage of rhFSH, number of high-quality embryos, clinical pregnancy rate, preterm rate, live birth rate, incidence of neonatal abnormalities, neonatal weight or Apgar score between the two groups (all P>0.05). The incidence of ovarian hyperstimulation syndrome and other adverse reactions in treatment period were not significantly different between the two groups (all P>0.05), which were known adverse reaction occurred in the imported rhFSH. Conclusion:The efficacy and safety of domestic rhFSH were the same as that of imported rhFSH in infertile patients with normal ovarian reserve under the same ovarian stimulation regimen.

Objective:To evaluate the efficacy and safety of domestic recombinant human follicle-stimulating hormone (rhFSH) in assisted reproductive technology (ART) of controlled ovarian hyperstimulation (COH).Methods:In a multicenter, randomized, double-blind, positive, parallel controlled non-inferiority clinical trial, the infertile women with normal ovarian reserve who received ART-COH in six reproductive medical centers from July 2017 to June 2019 were randomly divided into two groups: experimental group (domestic rhFSH, n=134) and control group (imported rhFSH, n=133). Eight subjects were excluded due to various reasons during the experimental process, 7 in experimental group and 1 in control group. At last, 127 subjects in experimental group and 132 subjects in control group complete the experiment following the research protocol. The total number of oocytes, usage of FSH, fertilization rate of oocytes, the number of high-quality embryos, clinical pregnancy rate, live birth rate, neonatal characteristics and the incidence of adverse reactions were compared between the two groups during the cycle of COH. Results:During the initiation cycle of ovulation induction therapy, the total number of oocytes obtained in experimental group and control group were 13.0±5.8 and 12.9±5.7, respectively, with no statistically significant difference ( P>0.05). Among the 82 intracytoplasmic sperm injection (ICSI) patients, the number of M II oocytes obtained in experimental group (39 cases) was markedly higher than that in control group (43 cases) (9.9±3.9 vs. 7.5±3.0, P=0.003). The fertilization rate of oocytes in experimental group was obviously higher than that in control group [63.82% (1048/1642) vs. 56.19% (958/1705), P<0.001]. There were no significant differences of stimulated duration and dosage of rhFSH, number of high-quality embryos, clinical pregnancy rate, preterm rate, live birth rate, incidence of neonatal abnormalities, neonatal weight or Apgar score between the two groups (all P>0.05). The incidence of ovarian hyperstimulation syndrome and other adverse reactions in treatment period were not significantly different between the two groups (all P>0.05), which were known adverse reaction occurred in the imported rhFSH. Conclusion:The efficacy and safety of domestic rhFSH were the same as that of imported rhFSH in infertile patients with normal ovarian reserve under the same ovarian stimulation regimen.

Regarding to the sharply increased applications and relatively lower rate of successful funding for major projects in the fields of Critical Care/Wounds and Injuries/Burns/Plastic Surgery from the National Natural Science Foundation of China in recent years, the author summarized the funded projects in this specific field from 2014 to 2018, discussed the characteristics and trends of these applications and grants, and summarized the hotspot issues and frontier researches so as to help the applicants in the future.

To summarize the projects granted by National Natural Science Foundation of China related to tumor biomarkers in laboratory medicine from 2010 to 2018. The projects are categorized and analyzed according to tumor classification, biochemical properties of biomarkers. What′s more, characters of granted projects of tumor biomarkers in recent 9 years are summarized and development trends are pointed out.

Objective To clone the aldehyde dehydrogenase (adhA) gene from Methylovorus glucosotrophus and study its expression,purification and enzymatic characteristics.Methods The adhA gene was amplified and cloned to the expression vector pTIG.The AdhA was successfully expressed with induction in Escherichia coli BL21(DE3).The enzymatic characteristics were investigated by AHMT,and AdhA was purified by Ni+ exchange chromatography.Results AdhA accounted for more than 50% of the total cell proteins,and the purity was about 95%.With methanol as the substrate,the optimal pH of AdhA was 7.0,while the optimal temperature was 30℃.The enzymatic activity of purified AdhA remained about 60% when stored at room temperature for 6 days.Conclusion AdhA from MP688 is expressed in vitro,and methanol is the optimal substrate among all the substrates investigated.

Objective:To explore the efficacy and safety of endoscopic esophageal varix ligation (EVL) combined with omeprazole and octreotide in the treatment of esophageal variceal bleeding.Methods:127 patients with cirrhosis complicated with esophageal variceal hemorrhage diagnosed and treated in our hospital from May 2014 to May 2016 were divided into the study group and the control group.The control group was treated with omeprazole and octreotide on the basis of conventional therapy,while the study group was treated with endoscopic esophageal variceal ligation (EVL) on the basis of control group.The clinical efficacy,hospitalization condition,incidence of adverse reactions and rebleeding rate after treatment of the two groups were analyzed.Results:All the patients in the study group were successfully operated.In the control group,10 patients showed hematemesis and melena,among which 1 patient wastreated with surgery.After treatment,the c lini cal effi cacy of the study group was superi or to the control group,and the di fference was stati sti cally significant (P＜0.05).During the treatment period,the hemostasis time,blood transfusion time,hospital stay and hospitalization expenses of the study gronp were significantly lower than those of the control group (P＜0.05).In the study group and the control group,10 cases and 7 cases respectively had nausea and vomiting,esophageal foreign body sensation,dizziness,palpitations,pain,bloating,increased facces frequency,fever and other adverse reactions,and the incidence of increased faeces frequency of control group was significantly higher than that of the study group (P＜0.05),but the incidence of other adverse reactions and the total incidence showed no significant difference between two groups (P＞0.05).The rate of rebl eeding was si gni fi cantly lower in the study group at 0.5,1,3,6 and 12 months after treatment than those in the control group(P＜0.05).Conclusion:Endoscopic ligation combined with omeprazole and octreotide was effective in the treatment of esophageal variceal bleeding,which could be effective,rapid hemostasis,reduce the hospital stay,hospitalization cost and rebleeding rate with high safety.

Objective To prepare and characterize specific monoclonal antibodies( McAbs) against the heavy chain of botulinum neurotoxin serotype A ( BoNT/AHc ) .Methods BALB/c mice were immunized with purified BoNT/AHc protein.After the fusion of mouse splenic cells with SP2/0 cells, hybridoma cell lines secreted McAbs against BoNT/AHc. The McAbs obtained were characterized by indirect ELISA, Western blotting and rapid isotypingassay before being used in ELISA to detect interaction sites in McAbs and BoNT/AHc preliminarily.Results Antigen protein BoNT/AHc of high purification was obtained.Four hybridoma cell lines secreting McAbs against BoNT/AHc were screened,named 1A4,3H3, 3H7 and 5H8,respectively.Their titers of McAbs were all above 3.0 ×103 .They were specifically combined with BoNT/AHc protein by Western blotting.The isotype of 1A4 and 3H7 was IgG1(Κ),that of 3H3 was IgM(Κ),and that of 5H8 was IgG2b(Κ).Additive ELISA showed that epitopes recognized by the four McAbs were close.ELISA analysis confirmed the interaction epitopes in McAbs and BoNT/AHc.Conclusion Monoclonal antibodies against BoNT/AHc are prepared and characterized,providing effective tools for studying the neutralizing antibody and antibody epitopes of BoNT/AHc.

To determine expression of lactate dehydrogenase (LDH)-5 in non-Hodgkin lymphoma and its clinical significance.
 Methods: LDH-5 levels and LDH levels in NHL patients were examined by agarose gel electrophoresis and enzymatic method (n=63), respectively. Positive rates of LDH-5 and LDH were statistically analyzed.
 Results: The median age of NHL patients was 56(19-84) years old, including 36 males and 27 females. The positive numbers for LDH-5 and LDH in the initial treatment group (n=43) were significantly different (P<0.05). There was significant difference in 22 cases of diffuse large B cell lymphoma and in 9 cases of T cell lymphoma, whereas there was not significant difference in 12 cases of small B cell lymphoma (P>0.05). In 15 cases under the status of progress, the difference of LDH-5 and LDH expressions were not significant (P>0.05), whereas the difference in cases of small B cell lymphoma was significant (P<0.05).
 Conclusion: LDH-5 can be used as an index for NHL to judge the tumor load and to predict the recurrence.
Adult ; Aged ; Aged, 80 and over ; Biomarkers, Tumor ; blood ; metabolism ; Female ; Humans ; Isoenzymes ; metabolism ; L-Lactate Dehydrogenase ; metabolism ; Lactate Dehydrogenase 5 ; Lymphoma, B-Cell ; genetics ; Lymphoma, Large B-Cell, Diffuse ; genetics ; Lymphoma, Non-Hodgkin ; genetics ; Lymphoma, T-Cell ; genetics ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; genetics ; Prognosis ; Tumor Burden

Objective To explore the clinical efficacy of CT-Guided radioactive 125I seed implantation in treating retroperitoneal lymph node metastases. Methods Eighteen patients with retroperitoneal lymph node metastases (20 lesions in total) received CT-guided radioactive 125I seed implantation. Treatment planning system (TPS) was used to formulate the therapeutic protocol. The radioactive activity of 125I particle ranged from 1.11 × 107-2.96 × 107 Bq (0.3-0.8 mCi) and the matched peripheral dose (MPD) was 60 -100 Gy. Postoperative dosimetry was routinely performed for all the patients in one week. Postoperative D90 (90%dose received by target volume) was 53 -107 Gy. The patient’s clinical benefit response (CBR), two-month local tumor control rate and one-year survival rate were evaluated, and the complications were recorded. Results All the patients were followed up for 2 -15 months with a median time of 5 months. The one-year survival rate was 22.2%. The clinical benefit rate, overall effective rate and two-month local tumor control rate were 72.2%, 70.0% and 90.0% respectively. No serious complications occurred in all patients. Conclusion For the treatment of retroperitoneal lymph node metastases, CT-guided radioactive 125I seed implantation is mini-invasive with satisfactory short-term effect and fewer complications. Therefore, this technique is a relatively safe therapeutic means.