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Objective:To observe clinical effect of addition and subtraction therapy of Si Junzitang combined with Simotang to outlet obstructive constipation (OOC) after stapled trans-anal rectal resection (STARR). Method:One hundred and twenty-four patients were randomly divided into control group (62 cases) and observation group (62 cases) by random number table. Patients in control group got Qirong Ruichang oral liquid, 20 mL/time, 3 times/day. After operation, patients in observation group got addition and subtraction therapy of Si Junzitang combined with Simotang, 1 dose/day. And courses of treatment in two groups were 4 weeks, and 8 weeks' follow-up was recorded. Before the operation and at the second and fourth week after treatment, and the eighth week of follow-up, scores of main symptoms of constipation and Longo ODS were graded. Before the operation and at the fourth week after treatment, levels of superoxide dismutase (SOD), malondialdehyde (MDA), constipation patients quality of life self-assessment scale (PAC-QOL), anorectal pressure, anal resting pressure (ARP), maximum anal systolic pressure (MSP), rectal defecation pressure (RSP), FSV, CRS and MTV were recorded. And incidence, recurrence, normal defecation, satisfaction at the fourth week after the operation and safety were evaluated. Result:The clinical rate in observation group was better than that in control group (Z=2.096, P<0.05). At the second, fourth after treatment and eigh weeks' for follow-up, score of main symptoms of constipation and Longo ODS were both lower than those in control group (P<0.01). Levels of ARP, FSV, FSV, CRS and MDA were lower than those in control group (P<0.01), levels of MSP, RSP and SOD were higher than those in control group (P<0.01). Incidence and recurrence rate in observation group were 20.97% (13/62) and 4.84% (3/62) were all lower than 39.71% (24/62) and 16.13% (10/62) in control group (P<0.05). Normal defecation rate in observation group was 91.94% (57/62) higher than 80.65% (50/62) in control group, but there was no statistical significance in two groups. And total score of PAC-QOL and scores of each factor were all lower than those in control group (P<0.01). Then there was no adverse reaction related to the traditional Chinese medicine. Conclusion:Addition and subtraction therapy of Si Junzitang combined with Simotang can reduce constipation symptoms and the degree of illness, improve the quality of life, reduce the incidence of postoperative complications and recurrence rate, and improve anorectal dynamic indicators and oxidative stress indicators, improve the clinical efficacy.
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<p><b>OBJECTIVE</b>To screen and identify the peptides that specifically bind to CD13 on monocytes.</p><p><b>METHODS</b>The phages capable of specific binding to CD13 were screened in the phage-displayed 12-peptide library. The affinity of the selected phages with CD13 was verified with enzyme-linked immunosorbent assay (ELISA). The sequences of the peptides bound to the phages were deduced according to the phage DNA sequences, and the functional peptides aligned using the BLASTP on the Website NCBI were synthesized. To analyze the biological function of the screened peptides, the location of the peptides bound to THP-1 cells was detected using immunofluorescence assay. The blocking effect of WM15 on the peptide binding to THP-1 cells was assessed by immunofluorescence assay.</p><p><b>RESULTS</b>The phages that specifically bound to CD13 were effectively enriched to approach saturation after 4 rounds of panning. The recovery rate in the fourth round was 30 times that in the first round. Twenty selected phages were verified by ELISA, and the signals of 10 phages were higher than the control. The sequences of the peptides P9 and P7 showed 83% and 100% identity with those of human cytomegalovirus (HCMV) UL38 and UL105, respectively. The peptides bound to the cell membrane of THP-1 cells as shown by immunofluorescence assay. The binding of the peptides P9 and P7 to THP-1 cells was blocked by CD13-specific monoclonal antibody WM15 at different levels.</p><p><b>CONCLUSION</b>Two peptides (P7 and P9) that can specifically bind to CD13 have been screened successfully, and these two peptides show specific binding to CD13 on the membrane of THP-1 cells.</p>
Subject(s)
Humans , Amino Acid Sequence , Binding, Competitive , CD13 Antigens , Metabolism , Cell Line , Molecular Sequence Data , Peptide Library , Peptides , Metabolism , Protein BindingABSTRACT
OBJECTIVE@#To construct eukaryotic expression plasmid of porcine CCK gene pIRES2-EGFP/CCK and express it in COS-7 cells and hamsters. Methods The aimed segments were obtained from intermediate vector pMD18-T/CCK and were inserted into an eukaryotic expression plasmid pIRES2-EGFP to construct a recombinant expression plasmid pIRES2-EGFP/CCK. The recombinant expression plasmid was transfected into COS-7 cells by liposome-mediated gene transfer method and was observed through fluorescence microscope. The plasmid was injected into the skeletal muscle of hamsters directly to detect the expression of the recombinant plasmid in vivo.@*RESULTS@#A recombinant eukaryotic expression plasmid pIRES2-EGFP/CCK was successfully constructed. Green fluorescent protein could be detected in the transfected COS-7 cells 24, 48, and 72 hours after the transfection. On the 4th day postinjection into the skeletal muscle of hamsters, the protein could be detected at the injection site and the fluorescence intensity became much stronger on the 14th day than that on the 4th day. On the 42nd day the protein level increased. The green fluorescence protein was never expressed in the untransfected cells.@*CONCLUSION@#The porcine CCK gene eukaryotic expression plasmid pIRES2-EGFP/CCK is constructed successfully, and is expressed in mammal COS-7 cells and hamsters in vivo. The research paves the way for the cross immunity therapy of hamster pancreatic carcinoma.