Humans ; Medicine, Chinese Traditional ; Syndrome ; Temperature

Objective To investigate the relationship between the expression of NF-κB and Pglycoprotein(P-gp) in cervical cancer tissue before and after neoadjuvant chemotherapy(NACT). Methods The mRNA and the protein expression levels of NF-κB and P-gp were determined by Real time-PCR and immunohistochemical assay respectively in cancer specimens from 40 cevical cancer patients, which were collected before and after NACT. Results The mRNA expression levels of NF-κB were 50. 340 ± 0. 780 and 67. 595 ± 0. 914 before and after NACT respectively, which showed significant difference statistically ( t = -73. 384 ,P ＜ 0. 01 ). We also found significant difference in the comparison between MDR1 mRNA expression before and after NACT(45. 800 ±0. 636 vs 62. 381 ±0. 743 ,t = -66. 582,P ＜0. 01 ). The positive rate of NF-κB protein expression before and after NACT were 50% ( 20/40 ), 80% ( 32/40 ) respectively, which showed significant difference statistically( χ2 = 7. 912, P = 0. 005 ). The positive rate of P-gp protein expression after NACT was significantly higher than that before NACT [ 40% ( 16/40 ) vs 70% ( 28/40 ), χ2 = 7. 273, P = 0. 007 ]The mRNA and protein expressions of NF-κB were positively correlated with those of P-gp before and after NACT( r = 0. 408,r = 0. 327 respectively, Ps ＜ 0. 05 ). Conclusion NF-κB and P-gp may play an important role in multi-drug resistance of cervical carcinoma. Chemotherapy drugs in our NACT strategy may induce the activation of NF-κB and multi-drug resistance. Activation of NF-κB may correlate with multi-drug resistance mediated by P-gp.

OBJECTIVE: To explore the application of double pedicle blood supply pectoralis major myocutaneous flap in reconstruction of laryngeal and hypo pharyngeal defect after carcinoma resection. METHOD: All the patients received initial treatment. Pectoralis major myocutaneous flap was Applied in one-stage reconstruction in 22 cases of laryngocarcinoma and hypopharyngeal carcinoma with post-operation defect. During operation, pectoral branches of thoracoacromial vessels and branch of lateral thoracic vessels were reserved and prepared to be double pedicle vessel fascia bundle without muscle at the beginning part, rearched to defect area through subclavian tunnel. After operation, it is necessary to closely observe the subcutaneous swelling, quantity and color of the drain and others of neck surgery area to exclude the occurrence of surgical hematoma. When there is suspicion, do timely exploration. RESULT: Pectoralis major myocutaneous flaps of 22 patients were all survived. Pharyngeal fistula occurred in 2 cases and was cured by change of dressing. Twenty-one cases received radiotherapy after operation without secondary flap necrosis. After follow-up of 6 months to 24 months, one case of roll repairment of circumferential defect in cervical esophagus,found to have anastomotic stenosis 8 months after radiotherapy and then underwent gastrostomy treatment,the other 21 cases showed good recovery of swallowing function. Among 13 cases with laryngeal function reserved, only 1 case wearing tube and the extubation rate was 92.3% without communication barriers, no patient died in the short follow-up period. CONCLUSION For double pedicle blood supply pectoralis major nyocutaneous flap, blood supply are fully guaranteed and does not require complicated equipment to observe and monitor the flap blood supply after operation, it is important to exclude factors that may lead to muscular flap necrosis to ensure the survival of pectoralis major myocutaneous flap.
Esophagus ; surgery ; Fistula ; pathology ; Humans ; Hypopharyngeal Neoplasms ; surgery ; Laryngeal Neoplasms ; surgery ; Larynx ; surgery ; Myocutaneous Flap ; Pharynx ; pathology ; surgery ; Reconstructive Surgical Procedures

Linoleic acid (C18∶2n-6) and ?-linolenic acid (C18∶3n-3) are found widely in fungi, plants and some lower animals. However, they can not be synthesized in mammals due to lack of △12 and ?-3 fatty acid desaturases. To enable endogenous production of essential fatty acids in mammalian cells, here the stable expression of a Caenorhabditis elegans gene FAT-2 encoding △12 fatty acid desaturase in CHO cells was reported. First, the FAT-2 coding sequence was cloned by RT-PCR. To facilitate high level synthesis of heterogeneous protein, the codon usage of the fatty acid desaturase genes was optimized according to the codon preference of mouse by site-directed mutagenesis, 2 synonymous mutations were introduced into FAT-2 gene by overlapping PCR. The codon-modified gene was finally fused to pBudCE4.1 vector (Invitrogen) under the control of CMV promoter. The expression vector pBudCE-FAT2 was linearized with NheⅠ, and then transfected CHO cells, the cells were under Zeocin selection for nine days and then propagated, then the transfected cells were harvested. The genome and total RNA were isolated for PCR and Norhern blot ananlysis. The results revealed that FAT-2 gene has been integrated into the genome of CHO cells and expressed properly. Fatty acids of total cellular lipids were analyzed by gas chromatography. The results indicate that the expression and function of △-12 fatty acid desaturase resulted in accumulation of linoleic acid. The levels of linoleic acid in transgenic cells were 2.4-fold higher than those in wild-type cells. The moderate linoleic acid in CHO cells was derived from cell culture media uptaken by cell membrane. The results demonstrate that a heterogenous desaturase gene can function well in mammalian cells and prove that transgenic approach is an efficient strategy for changing fatty acid composition of mammals.

Objective To investigate the affecting mechanism of Jie Yu No.1 Decoction(JY),which was a complex prescription with the function of adjusting spleen and stomach,on the HPA-axis function of depression model rats.Methods60 SD rats were randomly divided into the normal,the model,the Amitriptyline and the JY decoction groups,with 15 each.Isolated-living condition and chronic mild unpredictable stress were applied suceessively to set up DEP rat model.Radiative immunotherapy was used to measure the content of hormone(CRH),somatostatin(SS) and Cortisol(CORT) in the blood plasma.The correlativity was Analyzed between SS,CRH and CORT to preliminary discuss the affecting mechanism of JY on the function of SS adjusting HPA-axis,and to clarify the antidepressant mechanism of the JY.ResultsThe correlation coefficient between SS and CRH was r=-0.5094,P=0.1972,t=1.4501.The result indicated that SS and CRH had the remarkable negatively correlation.The correlation coefficient between SS and CORT was r=0.010,P=0.9613,t=0.0244.The result indicated that SS and CORT had no remarkable correlation.ConclusionThe antidepressant mechanism of JY may be as that SS reduces CRH contents and reaches the adjustment of HPA-axis function in order to play its antidepressant effect.

Objective:This study aims to ensure the private hospitals development strategy in the background of new healthcare reform and put forward some scientific suggestions to help promote their sustainable development. Methods:The SWOT analysis method was adopted to analyze the private hospitals’ internal strength, weakness, exter-nal opportunity and threats. Results: The results showed a clear property right, advanced management system and other outstanding advantages in the private hospitals. Opportunities like the improved policy environment and people’s medical demand expansion are also very prominent. Meanwhile, the private hospitals development also faces some disadvantages and challenges such as illegal operation, disorder in the market competition, vague orientation, etc. Conclusions:It suggests the strengthening of the personnel and hospital culture construction, adoption of the differen-tiation strategy, improvement of the diagnosis and treatment ability, etc.

Objective: The aim of our work was to investigate the effects of n-3 polyunsaturated fatty acids on apoptosis, granzyme B and perforin expression of intestinal epithelial cells of chronic rejection after small intestinal transplantation. Methods: Small bowel transplantation was performed and rats were divided into three groups: Group 1, Lewis-to-Lewis, group 2, F344-to-Lewis, dietary corn oil, Group 3, F344-to-Lewis, dietary fish oil. All recipients were killed after 16 weeks of posttransplantation. The apoptosis rate of mucosal cells were evaluated by flow cytometry. The expressions of granzyme B and perforin were analyzed by reverse transcriptase RT-PCR. Results: A high apoptotic rate was observed when the allografts demonstrated one or more histological features of chronic rejection. N-3 polyunsaturated fatty acids decreased the rate of the apoptosis and inhibitted the expressions of granzyme B and perforin. Conclusion: N-3 polyunsaturated fatty acids can suppress the chronic rejection in small intestinal transplantation.

Objective:To evaluate the value of blood urea nitrogen (BUN)/creatinine (Cr) ratio for guiding the access route of double balloon enteroscopy (DBE) for small intestinal bleeding.Methods:The clinical information was collected from 105 patients who underwent DBE for suspected small intestinal bleeding at Air Force Medical Center from January 2015 to October 2019. Patients were divided into the elevated BUN/Cr group ( n=52) and the normal BUN/Cr group ( n=53), with a cut-off value of 81. Comparison was made for the detection rate of lesions between the oral route and anal route separately in the two groups using Chi-square test. Results:Among the 105 patients with suspected small intestinal bleeding, definite causes of bleeding were identified in 79 patients by DBE, and the overall lesion detection rate was 75.24% (79/105). In the elevated BUN/Cr group, the overall lesion detection rate was 76.92% (40/52), among which 79.49% (31/39) was through oral and 47.37% (9/19) through anal enteroscopy. In the normal BUN/Cr group, the overall lesion detection rate was 73.58% (39/53), and 63.64% (21/33) was transoral and 51.43% (18/35) transanal. The lesion detection rate of transoral enteroscopy in the elevated group was significantly higher than that in the normal group ( χ2=6.576, P=0.010). There was no significant difference in the lesion detection rate of transanal enteroscopy between the two groups ( χ2=2.230, P=0.135). Conclusion:For patients with active small intestinal bleeding (active bleeding within 48 hours), the BUN/Cr ratio higher than 81 may indicate that DBE should be performed firstly via oral route.

AIM: To evaluate the growth-inhibitory effects of NS-398, a selective cyclooxygenase-2 inhibitor, in human colon cancer HT-29 cells and its possible mechanisms. METHODS: MTT assay was applied to detect the cell proliferation. Flow cytometry was performed to detect apoptosis rate and cell cycle. RT-PCR was used to detect the expression of bcl-2 mRNA and bax mRNA. Alteration of cytoskeleton component F-actin was observed by confocal laser scanning microscope. RESULTS: NS-398 could inhibit growth of HT-29 cells in dose-and time-dependent manners. Flow cytometry revealed that NS-398 could induce apoptosis and cause G0/G1 arrest of HT-29 cells in a dose-dependent manner. After 72 h incubation with NS-398 at different concentrations, the expression level of bcl-2 mRNA was lowered and the ratio of bcl-2 to bax was decreased in HT-29 cells. F-actin was mainly distributed around nuclei forming annular structure in HT-29 cells. After exposure to NS-398, the annular structure around nuclei disappeared and fluorescence intensity of F-actin decreased obviously. CONCLUSION: NS-398 can inhibit the growth effectively and induce apoptosis in HT-29 cells in vitro, which is associated with the down-regulation of bcl-2 to bax ratio and the disruption of cytoskeleton.