Objective To investigate the effects of acyl-CoA synthetase 5 (ACS5) silencing by siRNA on expression and proliferation of colon carcinoma cell lines.Methods The expression of ACS5 in 30 case colon carcinoma and adjacent tissues were analyzed by immunohistochemical staining.The siRNA of ACS5 with Lipofectamine2000TM was transfected into colon carcinoma cell lines (HT-29 and SW480).The expression of ACS5 in colon carcinoma cell lines (HT-29 and SW480) was detected by real-time reverse transcription polymerase chain reaction.Proliferation of colon carcinoma cell lines was analyzed by 3-(4,5-dimenthylthiazol-2-yl)-5-(3-carboxymethoxy-phenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS).Results The expression of ACS5 in colon cancer was significantly higher than in adjacent tissues by immunohistochemical staining.The mRNA of ACS5 in siRNA-ACS5 group (0.18 ± 0.03) was significantly lower than in NC siRNA group (2.55 ± 0.31) and blank control group (2.48 ± 0.12) in HT-29 colon cancer lines,and the inhibition ratio was 92.96％ (F =146.9,P ＜0.01).The mRNA of ACS5 in siRNA-ACS5 group (0.14 ± 0.01) was significantly lower than in NC siRNA group (1.21 ± 0.05) and blank control group (1 ± 0.03) in SW480 colon cancer lines,and the inhibition ratio was 88.5％ (F =826.5.9,P ＜ 0.01).Proliferation of HT-29 and SW480 colon cancer line in siRNA-ACS5 group was slower on 72 h and 96 h than in NC siRNA group and blank control group (P ＜ 0.05).Conclusions Expression of ACS5 is elevated in colon cancer tissues.siRNA interference of colon cancer line downregulated ACS5 expression and inhibited the proliferation of the colon cancer cells.

This study was aimed to discuss the antibacterial and immunomodulation effect ofRe-Du-Ning (RDN) injection. Mice were randomly divided into the normal group, model group,Shuang-Huang-Lian (SHL) group (7.8 mL·kg-1), RDN high dose group (20.30 g·kg-1), middle dose group (10.15 g·kg-1), and low dose group (5.08 g·kg-1), in order to observe the death protective effect of mice with bacterial infection on antibacterial experimentin vivo. Mice were randomly divided into the normal group, model group,Xiang-Gu Duo-Tang (XGDT) group (0.19 mg·kg-1), RDN high dose group (20.30 g·kg-1), middle dose group (10.15 g·kg-1), and low dose group (5.08 g·kg-1). The 2, 4-dinitrochlorobenzene was used to induce delayed hypersensitivity. Immunomodulation was observed by the content of serum hemolysin and the carbon particle clearance index. The results showed that the RDN high dose group and middle dose group had antibacterial effect, which reduced the mortality of mice. The RDN high dose, middle dose and low dose group can enhance the phagocytosis of macrophage in immunosuppressive mice, increase the formation of hemolysin, and strengthen delayed hypersensitivity reaction among immunocompromised mice. It was concluded that RDN injection had antibacterial effect. Its immunomodulation effect was through the enhancing of non-specific immunity, humoral immunity and cellular immunity of mice.

Objective To explore the relationship between dyslipidemia and colorectal cancer.Methods The levels of total cholesterol(TC),triglyceride (TG),1ow density lipoprotein-cholesterol (LDL-C) and high density lipoprotein-cholesterol (HDL-C) of 182 patients with colorectal cancer and 86 controls were tested.The serum lipids levels between the colorectal cancer group and control group,colorectal cancer with different location,different gender were compared.Results The level of TC in the colorectal cancer group [(5.51 ± 0.76) mmol/L] was significantly higher than that of the control group [(4.84 ± 0 53) mmol/L] (t =2.41,P ＜ 0.05) ; The level of HDL-C in the colorectal cancer group[(0.85 ± 0.26) mmol/L] was significantly lower than that of the control group [(1.24 ± 0.27) mmol/L] (t =-3.56,P ＜ 0.05).There were no significant differences in the 1 evels of TG and LDL-C between the colorectal cancer group and control group(t＝0.89,1.45,all P ＞ 0.05).TC level in the male colorectal cancer group [(5.96 ± 0.87) mmol/L] was significantly higher than that of the female colorectal cancer group [(5.26 ± 0.74) mmol/L] (t =2.10,P ＜ 0.05).The level of TC in the distal colon and rectal cancer group was (6.07 ± 0.78) mmol/L,which was significantly higher than (5.14 ± 0.56)mmol/L of the proximal colon cancer group (t =3.24,P ＜ 0.05) ;The level of HDL-C in the distal colon and rectal cancer group was (0.75 ± 0.26) mmol/L,which was significantly lower than (1.07 ± 0.19) mmol/L of the proximal colon cancer group (t =-3.20,P ＜ 0.05).Conclusion TC was positively correlated with colorectal cancer,and HDL-C was negatively correlated with colorectal cancer.

Objective To investigate the taste alteration caused by radiotherapy and its relationship with nutritional status in head and neck cancer patients during and after radiotherapy.Methods From March to November 2017,172 patients with head and neck cancer receiving radiotherapy were recruited from Beijing Cancer Hospital including 86 patients completing all follow up visits.Chemotherapy-induced Taste Alteration scale was used to evaluate radiotherapy-induced taste alteration and the Patient-generated subjective global assessment (PGSGA) was used for nutrition evaluation at baseline,mid-treatment,post-treatment and 1-2 months after radiotherapy (follow-up).Generalized estimating equations was applied to analyze the influencing factors of taste alteration and its relationship with nutritional status.Results The incidence of taste alteration were 9.3％,84.9％,94.2％ and 77.9％ respectively at baseline,mid-treatment,post-treatment and 1-2 months after radiotherapy (follow-up).Taste alteration score increased with the increase of radiation dose,reached the highest at the posttreatment and decreased at follow-up visit which was still higher than the score at baseline.PG-SGA score increased with the increase of radiation dose.The incidence of severe malnutrition after radiotherapy was 95.3％,decreased to 45.3％ at follow up visit.Nutritional status was closely related to taste alteration.Total radiation dose and concurrent chemotherapy were the influencing factors of taste alteration.Conclusions The taste of patients with head and neck cancer is affected by radiotherapy.As radiotherapy continues,the taste alteration aggravates and PG-SGA score increases gradually,thus malnutrition becomes a prominent problem.Such effect will persist for a period of time after radiotherapy,which should be paid attention and interventions should be conducted to prevent or reduce this effect,in order that the lasting of malnutrition induced by taste alteration can be avoided.

Objective: To study the different ischemic characteristics of cerebral gray matter and deep white matter in patients with chronic cerebral artery severe stenosis or occlusion. Methods: A retrospective study was conducted on 30 patients with chronic unilateral cerebral artery severe stenosis or occlusion from April 2014 to April 2018 in our hospital. Cerebral blood flow (CBF), cerebral blood volume (CBV), mean transit time (MTT), time of peak time (TTP) and time to delay(TTD) of cerebral cortex gray matter and deep white matter in the blood supply area of the responsible artery (the affected side) and the contralateral hemisphere (the healthy side) were measured. Statistical analysis of the perfusion parameters of cerebral cortex gray matter and deep white matter in the affected side and contralateral side were performed using SPSS13.0 software package. T test was used for variance homogeneity, and t′ test was used for variance discrepancy, and P<0.05 was statistically significant. Results: The average values of CBF and CBV of the ipsilateral and contralateral cerebral cortex were increased than those of ipsilateral and contralateral cerebral deep white matter respectively(P<0.01). MTT, TTP and TTD of the ipsilateral and contralateral cerebral cortex were decreased than that of ipsilateral and contralateral cerebral deep white matter (P<0.01); CBF of ipsilateral cerebral cortex and CBV of ipsilateral cerebral deep white matter were not different from those of the contralateral cerebral cortex and deep white matter respectively, but CBF of ipsilateral cerebral deep white matter is decreased than that of the contralateral deep white matter (P<0.01). CBV of ipsilateral cerebral cortex is increased than that of the contralateral cerebral cortex (P<0.01). MTT, TTP and TTD of ipsilateral cerebral cortex and deep white matter were increased than those of contralateral cerebral cortex and deep white matter respectively(P<0.01). Conclusion Deep cerebral white matter perfusion decreased more significantly than cortical gray matter in the supply region of chronic cerebral artery severe stenosis or occlusion. CT perfusion imaging can quantify the degree of chronic cerebral ischemia and can provide quantitative diagnostic information for clinical treatment and efficacy evaluation.

Objective To describe the characteristics of dysphagia in patients with head and neck cancer during radiotherapy,and analyze the cause of dysphagia and the relationship between dysphagia and weight change.Methods Patients with head and neck cancer treated with radiotherapy in Beijing Cancer Hospital from November 2017 to June 2018 were recruited.The M.D.Anderson Dysphagia Inventory (MDADI) was used to assess the dysphagia of patients before (T1),during (T2) and at the end (T3) of the radiotherapy.Meanwhile,the weight,dietary intake and radiation adverse effects were investigated.Generalized estimating equations were used to analyze the impact factors of dysphagia and the relationship among dysphagia,dietary intake and weight change.Results Ninety-six patients were completely investigated and the incidence of dysphagia were 6.3％ (6/ 96),80.2％ (77/96) and 85.4％ (82/96) in T1,T2 and T3.With the progress of radiotherapy,the total score and the scores of 4 dimensions of MDADI dropped and the dietary intake declined.The average weight loss was (5.09±3.31) kg,and 76.1％ of the patients had weight loss over 5％ at the end of radiotherapy.The occurrence of dysphagia was associated with the radiotherapy-related oral and laryngeal mucositis and the weight loss was closely associated with the site of radiation,dysphagia,and dietary intake decline.Conclusions The dysphagia of patients with head and neck cancer is affected by radiation adverse effects,and is most severe at the end of radiotherapy.Dysphagia might result in dietary intake decline and weight loss.Clinicians should pay close attention to the swallowing function of the patients and take measures earlier accordingly.

Huacao Community Health Service Center has established an integrated chronic kidney disease (CKD) management system since 2015,which greatly improved CKD management in the community.From September 2016 to August 2017,4084 residents were screened by the family doctor team,975 were suspected to have CKD (23.87％),among whom 202 (20.72％) were referred to district CKD treatment center,and 197 (97.52％) were confirmed as CKD.The detection rate of suspected CKD among patients with hypertension and diabetes mellitus was the highest,which was much higher than that among outpatients and those with routine health check up.It is suggested that the integrated management of CKD should be widely implemented to cope with the prevalence of CKD,particularly for those with hypertension and diabetes.

Objective To study the different ischemic characteristics of cerebral gray matter and deep white matter in patients with chronic cerebral artery severe stenosis or occlusion. Methods A retrospective study was conducted on 30 patients with chronic unilateral cerebral artery severe stenosis or occlusion from April 2014 to April 2018 in our hospital. Cerebral blood flow (CBF), cerebral blood volume (CBV), mean transit time (MTT), time of peak time (TTP) and time to delay(TTD) of cerebral cortex gray matter and deep white matter in the blood supply area of the responsible artery (the affected side) and the contralateral hemisphere (the healthy side) were measured. Statistical analysis of the perfusion parameters of cerebral cortex gray matter and deep white matter in the affected side and contralateral side were performed using SPSS13.0 software package. T test was used for variance homogeneity, and t′test was used for variance discrepancy, and P<0.05 was statistically significant. Results The average values of CBF and CBV of the ipsilateral and contralateral cerebral cortex were increased than those of ipsilateral and contralateral cerebral deep white matter respectively(P<0.01). MTT, TTP and TTD of the ipsilateral and contralateral cerebral cortex were decreased than that of ipsilateral and contralateral cerebral deep white matter (P<0.01); CBF of ipsilateral cerebral cortex and CBV of ipsilateral cerebral deep white matter were not different from those of the contralateral cerebral cortex and deep white matter respectively, but CBF of ipsilateral cerebral deep white matter is decreased than that of the contralateral deep white matter (P<0.01). CBV of ipsilateral cerebral cortex is increased than that of the contralateral cerebral cortex (P<0.01). MTT, TTP and TTD of ipsilateral cerebral cortex and deep white matter were increased than those of contralateral cerebral cortex and deep white matter respectively(P<0.01). Conclusion Deep cerebral white matter perfusion decreased more significantly than cortical gray matter in the supply region of chronic cerebral artery severe stenosis or occlusion. CT perfusion imaging can quantify the degree of chronic cerebral ischemia and can provide quantitative diagnostic information for clinical treatment and efficacy evaluation.

Objective: To identify the feasibility and efficacy of indocyanine green (ICG) used in laparoscopic gastrectomy for advanced gastric cancer patients. Methods: From December 2018 to August 2019, the clinical data of 82 patients preoperatively diagnosed as advanced gastric cancer undergoing laparoscopic radical gastrectomy were retrospectively analyzed. These patients were divided into ICG group(n=38) and a historical control group (non-ICG group, n=44). The number of retrieved lymph nodes, operation time, blood loss, hospital stay, fever time, evacuation time and complications were compared between these two groups. Results: The operation time [(172.8±45.8) min vs (162.6±45.7) min], blood loss [(80.1±91.9) ml vs (78.6±89.8) ml], hospital stay [(7.0±2.0) d vs (7.5±2.4) d], fever time [(2.3±1.2) d vs (2.9±1.9) d], evacuation time [(3.4±0.8) d vs (3.4±1.1) d] and incidence of complications (5.3% vs 9.1%) were not significantly different between the ICG and historical control groups (P>0.05). The number of retrieved lymph nodes in ICG group was significantly increased compared with that of the historical control group (46.5 vs 33.0, P=0.005). Conclusions The ICG method applied in lymph node dissection of laparoscopic radical gastrectomy is safe. Moreover, ICG might elevate the efficiency of regional lymph node dissection.