Objective To explore the application of rapid rehabilitation concept in perioperative period of colorectal cancer.Methods A total of 110 patients with rectal cancer admitted in our hospital from June 2012 to July 2015 were enrolled in the research group(55 cases)and control group(55 cases).The observation group was treated with rapid rehabilitation method,and the control group was treated by traditional perioperative method.Observation of the two groups of patients was in the hands of the amount of bleeding,operation time,the first time the patient exhaust time,postoperative time to get out of bed and other indicators.We observed the two groups of patients with surgical incision infection,intestinal obstruction,pulmonary infection and other complications.Results The difference of the amount of bleeding and the length of the incision in the two groups was statistically significant(t=9.618,7.846,P<0.01).The first time of exhaustive time,the first defecation time,the time of eating,the time of getting out of bed and the postoperative hospital stay of research group were significantly lower than those of the control group(P<0.01).The incidence of complications such as incision infection,intestinal obstruction and pulmonary infection of the research group was lower than those in the control group,and the difference was statistically significant(χ2=4.767,P<0.05).Conclusion The application of rapid recovery concept in perioperative period of colorectal cancer can reduce the incidence of surgical complications.

Objective To investigate and compare the effects of PM2.5 in ambient air samples collected from nickel and nonickel contaminated areas on inflammatory factors in the serum of rats.Methods The air PM2.5 of the nickel-contaminated area and the control area were collected and detected for some major elements.Forty-two male Wistar rats were randomly divided into 10 groups,6 in each,which were respectively instilled with saline,suspended PM2.5 fluid of the nickel-contaminated area and the control area of 3 different doses(1.6,8.0,40.0 mg/kg) through the trachea.The rats were sacrificed 24 hours after being treated with PM2.5.The levels of IL-6,CRP in serum were examined.Results There was no significant difference in the level of PM2.5 between the two areas,the concentration of Ni in the nickel-polluted area was 48.75 times as that in the non-polluted area.A good dose-dependent manner was found in the test of IL-6 in nickel-contaminated groups.CRP was found significantly higher in the nickel-contaminated group and the control group than the saline control group(P

Objective: To establish the distinguish method of Jianpixiaoshi capsule.Methods: The microscopic distinguish and TLC were used. Results: 12 herbs in Jianpixiaoshi capsule can be distinguished by Microsccopic distinguish, Atractylodes macrocephala, Glycyrrhiza uralensis, Panax ginseng, Citrus reticulate, Ammomum villosum, Crataegus pinnatifida and Codonopsis pilosula can be distinguished respectively by TLC.Conclusion: The method is accurate and simple, and can be used for distinguishing Jianpixiaoshi Capsule.

Abstract： With the increasing rise in antidepressant consumption, more and more antidepressants and their metabolic products enter into water and soil environments. This will cause toxicity to animals living in these environments, and antidepressants may be transferred to humans via food chain, leading to human health risks. Based on national and international publications pertaining to environmental pollution and toxic effects of antidepressants during the period between 2005 and 2021, this review summarizes the biological accumulation, acute toxicity, reproductive and developmental toxicity, metabolic effects and biological behavior changes of antidepressants, so as to provide insights into the elucidation of the impact of antidepressants on human health risks.

Objective To investigate the effects of short term insulin pump intensive therapy on flow-mediated dilation (FMD) in type 2 diabetes mellitus (T2DM) patients with and without vascular complications. Methods Seventy-six patients with T2DM (T2DM group) were divided into 2 subgroups: T2DM1 subgroup (28 patients with vascular complications) and T2DM2 subgroup (48 patients without vascular complications). Meanwhile, 30 healthy cases were selected as NC group. All research subjects accepted high-frequency ultrasound detection on brachial artery for FMD. After insulin pump intensive therapy,FMD in T2DM group was reexamined, fasting insulin was detected and HOMA-IR was calculated. Results Compared with that in NC group, FMD in T2DM group was significantly lower(P＜ 0.01). However, glycosylated hemoglobin (HbA1c ), fasting plasma glucose (FPG ),H0MA-IR and blood fat were significantly higher (P＜0.01 or ＜0.05). Correlation analysis showed that FMD had negative correlation with HbA1c, FPG, HOMA-IR, triglyceride (TG) and low-density lipoprotein cholesterol (LDL-C)(P＜0.01),and had positive correlation with high-density lipoprotein cholesterol (HDL-C). After 2 weeks of insulin pump therapy, the improvement of FMD between the two groups was different. FMD in T2DM1 subgroup increased from (4.25 ± 1.96)% to (4.96 ± 1.36)%(P＞0.05), and FMD in T2DM2 subgroup increased from (4.02 ± 2.35)% to (7.56 ± 2.34)%(P＜ 0.01). Conclusion Insulin pump intensive therapy can evidently improve FMD in T2DM patients without vascular complications.

Objective To investigate the synergistic effect of methotrexate (MTX) and cyclophos phamide (CTX) on cell cycle and cyclin D1 of periphery blood lymphocytes (PBLs) and bone marrow byflow cytometry. Methods Wistar rats were randomly divided into four groups including normal control, MTX and cyclophosphamide combination group, MTX and CTX only treatment groups respectively. PBLs were isolated for flowcytometry analysis for the changes of cell cycle and the expression of cyclin D1 at week 0, week 3,week 9, week18 and week 27. Mice were dissected and the changes of lymphoeytes cell cycle and the expressions of cyclin D1 in the bone marrow were measured at week 0, week 3, week 9, week 18 and week 27 increased and the ratio of phase S cells was decreased (P>0.05). In the CTX treatment group, there was no statistical difference in ratios of each phase. In the MTX and CTX combination treatment group, the proportion of phase G0/G1 cells decreased significantly and the percentage of phase S cells increased in both PBLs and bone marrow ceils (P<0.05). And there was no statistical significant difference in different time points after marrow between different groups or different dissecting time points. Conclusion MTX combined with CTX has been shown to have antagonistic effect on cell cycle. However, this effect is not via the cyclin DI pathway.

Objective To study the preparation of nifedipine liposomes (NP) and evaluate their quality. Methods The liposomes were prepared by a pH steps degree-freeze thawing method, with the entrapment and stability as indices. The entrapment was studied by Sephadex G-50 minicolumn centrifugation UV-Vis spectroscopy method. Entrapment, and degree distribution before and after freezing were compared, the effect of freezing times on entrapment was studied. Results The entrapment and the average size of NP liposomes were 96.65% and 2.0 ?m, respectively. After freezing, both the entrapment and stability were increased. Conclusion The selected formulation and preparation of nifedipine liposomes are practicable.

Objective To prepare Paracetamol (APP) multiloculated implant loaded with poly-lactide-co-glycolide acid (PLGA) and to study the drug release profile in vitro. Methods APP multiloculated implant was fabricated by micro-electro-mechanical system (MEMS), and high-performance liquid chromato graphy (HPLC) measurement was used to investigate in vitro drug release profile. HPLC analysis was carried out by employing C18 column and a mixture of methanol-water (15∶85) as mobile phase. The detection wavelength was 215nm and flow rate was 0.8mL/min. Results With different multiloculated shape, the rate of the drug release in vitro was varied significantly. Moreover, the releasing of APP multiloculated implant with ecto-tetragonum ento-hexagon in vitro conformed to Higuchi equation. Conclusion The technology of the preparations is feasible, and the structural and morphological characteristics of the multiloculated implant have a significant impact on the release speed of the drug delivery system.

Objective To explore the labeling method of rat adipose-derived stromal cells,and observe the stem cell characteristics and the activities of EGFP-positive adipose-derived stromal cells (EGFP-ADSCs) in vitro and in vivo.Methods ADSCs were transfected for 12 h with enhanced green fluorescent protein gene (EGFP) carried by lentivirus(Lv-EGFP) vector at different value of MOI (0,5,10,25,50,100,respectively).The rate of EGFP expression and fluorescence intensity were evaluated by flow cytometric analysis and fluorescence microscopy,and cell viability was detected by MTT-test after transfection.Secondly,cells were exposed either to adipogenic medium or osteogenic medium,then stained with Oil Red O and Alizarin Red S.Cell growth was investigated on frozen longitudinal sections when EGFP-ADSCs were injected into acellular nerves to build tissue-engineered peripheral nerves repairing sciatic nerve defects in rats for 1 week in vivo.Results EGFP-positive rate and fluorescence intensity peak at 4 days after transfection.The rate of EGFP expression was 0.13％,31.09％,75.33％,92.66％,96.70％,98.38％ for MOI =0,1,5,25,50,100,respectively.The positive rate between the experimental group and control (MOI =0) existed significantly difference (P ＜ 0.05) ; the difference between MOI =1,5 groups and MOI =25,50,100 groups were also observed (P ＜ 0.05).There was no statistical difference in EGFP-positive rate and cell proliferation activity among MOI =25,50,100 groups (P ＞ 0.05).MOI =25 was chosen as best scheme to transfect ADSCs for subsequent experiments.Osteogenic and adipogenic differentiation for 20 days,orange calcium deposits,orange-red lipid droplets were seen in EGFP-ADSCs after Alizarin red and oil red O staining.At 1 week in vivo,EGFP-ADSCs evenly distributed and became fusiform on frozen longitudinal sections.Conclusion Lv-EGFP transfection does not affect the ADSCs activity and their osteogenic and adipogenic differentiation,so could be as a tracing method for ADSCs-tissue-engineered peripheral nerves repairing nerve defects.

Objective To explore a method of preparing the acellular tendons of human with chemical approaches.Methods From April 2011 to June 2012,several treatments were performed on human tendons using 1.00％ tri(n-butyl) Phosphate (TnBP) combinded with Triton X-100 at the concentration of 0,0.25％,0.50％,1.00％ respectively.Specimens were examined using histological observation,scanning electron microscopy,biomechanical testing and hydroxyproline quantitation.The results were then compared with fresh tendons of control group,so as to value the characteristics of decellularized human tendon scaffold.Results Acellular human tendons had glossy surface,intact aponeurotic membrane and satisfactory flexibility.A small number of disrupted cells remained in the 1.00％ TnBP + 0％ Triton X-100 treated tissue,while other three experimental groups successfully eliminate all cells.Intact and regular collagen architecture was retained in 1.00％ TnBP +0.25％ Triton X-100 treated tissue.1.00％ TnBP + 0.50％ Triton X-100 and 1.00％ TnBP + 1.00％ Triton X-100 treated tissue were nearly identical to 1.00％ TnBP +0.25％ Triton X-100 treated tissue,but the interval of collagen was slightly wider than the control group,the maximum load (385.22 ± 80.32N,398.22 ± 127.20N),ultimate tensile strength(46.69 ± 16.30Mpa,46.20 ±5.52Mpa) and hydroxyproline content(0.282663 ± 0.0110109 μg/mg,0.279355 ± 0.0102129 μg/mg) were statistically lower (P ＜ 0.05) compared with those of the control group,maximum load(533.28 ± 135.77N),ultimate tensile strength (65.56 ± 14.40Mpa) and hydroxyproline content (0.292882 ± 0.0100988 μg/mg) respectively.Conclusion The decellularization treatment with 1.00％ TnBP + 0.25％ Triton X-100 could be optimized for preparing acellular human tendons.