Objective To explore the effect of related factors on survival of patients with unresectable pancreatic cancer aged 70 years and over. Methods Fifty-seven patients with unresectable locally advanced or metastatic pancreatic cancer aged 70 years and over were enrolled.Their survival time were analyzed with SPSS 13.0 by taking account of gender, age, smoking history,alcohol history, pancreatic disease history, diabetes mellitus history, Eastern Collaborative Oncology Group (ECOG) scoring, chemotherapy, radiotherapy, CEA and CA199 levels. Results Gender,ECOG scoring, chemotherapy and radiotherapy had relationship with overall survival. The median survival time was 8.9 months and one-year survival rate was 28.1%. The median survival was (10.7±5.4) months in male group and (5.5±2.3) months in female group (P=0.000). The median survival was(10.1±5.8) months in patients with ECOG 0～1 group and(7.3±3.8)months in patients with ECOG 2 group (P=0.040). The median survival was(7.76±5.27) months in nochemotherapy group and(11.5±5.0)months in chemotherapy group (P=0.038). The median survival was(8.87±5.36)months in no radiotherapy group and (13.7±3.8) months in radiotherapy group (P=0.048). Conclusions The patients who have better ECOG performance status and receive chemotherapy or radiotherapy show better survival.

Antiviral Agents ; Diabetic Retinopathy ; Drug Combinations ; Hepatitis C, Chronic ; Humans ; Interferon-alpha ; Polyethylene Glycols ; Recombinant Proteins ; Ribavirin

AIM To investigate the relationship between the prevention of probucol against restenosis and functional vascular remodeling after percutaneous transluminal angioplasty(PTA) in rabbits. METHODS New Zealand rabbit thoracic aorta atherosclerosis was induced by 3 5 F balloon catheter injury following a 4 week feeding of high cholesterol diet, and percutaneous transluminal angioplasty(PTA) was performed by using 3 5 F ballon catheter. Probucol(1 g?d -1 ) or vitamin E(400 mg?d -1 ) was administrated one week before PTA. Two weeks after PTA, lumen area,neointima area(NEA),medial area(MA) and NEA/MA were analyzed by computerimage system.The relaxation response of restenotic arteries to acetylcholine and the contractive response to norepinephrine, potassium chloride and serotonin of thoracic aorta rings were measured by bioassay. Nitric oxide of serum was measured by means of biochemical assay.RESULTS After two weeks of PTA, probucol increased lumen area and decreased neointima area significantly. The relaxation response of restenotic arteries to acetylcholine was significantly lower than that of normal arteries〔relaxation percent to acetylcholine (1 ?mol?L -1 ):(18 4?4 0)% vs (63 5?6 4)%, P

Objective:To investigate the characteristics of gene mutations in colorectal cancer(CRC)patients by using next-generation generation sequencing(NGS).Methods:Blood and tissue samples were collected from 90 CRC patients admitted to Beijing Hospital between August 5, 2016 and December 29, 2020.Analysis of driver gene mutations was performed by using a 1021-gene NGS panel.Results:There were 43 tissue samples and 83 blood samples.Also, 36 patients had both tissue and blood samples.The frequency rates of KRAS and BRAF mutations were 51.2%(22/43)and 20.9%(9/43)in tissue samples, and 3 rare concomitant KRAS/ BRAF mutations were detected.The frequency rates of KRAS and BRAF mutations were 26.5%(22/83)and 10.8%(9/83)in blood samples.In patients with tissue and blood samples, the rates of KRAS and BRAF mutations were 52.8%(19/36)and 10.8%(8/36). Conclusions:The rate of KRAS mutations in tissue samples from colorectal cancer patients is similar to rates reported in the literature, but the rate of BRAF mutation and the rate of rare KRAS and BRAF co-mutations are higher than those reported from other countries.

Placenta is an important organ to maintain fetal growth, metabolism, maternal and fetal physiologic balance. Angiogenesis is a critical factor in placental development involved in fetal blood circulation and vascular changes in the endometrium and placenta. Angiogenesis is closely related to angiogenesis factors such as vascular endothelial growth factor and placenta growth factor. Fetal growth restriction threats the fetal health in gestation and also increases the long-term likeliness of several diseases. In this review, the authors summarize the findings in current studies of the relationship between angiogenesis factors and fetal growth restriction.
Angiogenesis Inducing Agents ; metabolism ; Endometrium ; blood supply ; Female ; Fetal Development ; Fetal Growth Retardation ; Humans ; Neovascularization, Physiologic ; Placenta ; blood supply ; Placenta Growth Factor ; Pregnancy ; Pregnancy Proteins ; metabolism ; Vascular Endothelial Growth Factor A ; metabolism

Objective:To explore the effects of low-calorie diet intervention and aerobic exercise intervention on insulin levels and body composition in obese patients with type 2 diabetes.Methods:A total of 300 obese patients with early type 2 diabetes who were diagnosed and treated in the Department of Endocrinology, Xuanwu Hospital of Capital Medical University from July 2016 to July 2019 were selected as the research objects. According to the random sampling method, they were divided into a control group and an observation group with 150 cases each. Calorie diet intervention was given to control group, while the observation group was given low-calorie diet intervention and concentrated aerobic exercise intervention. Observation and evaluation of fasting blood glucose (FBG), fasting insulin (FINS), homeostasis model assessment of insulin resistance (HOMA-IR), body mass index (BMI), body fat percentage, body weight, triacylglycerol (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C) were conducted.Results:After 4 weeks of intervention, FBG, FINS, HOMA-IR, BMI, body fat percentage, body mass, TG, TC, HDL-C, LDL-C indicators of the observation group were (6.15±0.92) mmol/L and (14.12±1.11) mU/L, 2.67±0.32, (25.01±1.75) kg/m 2, (27.45±1.92)%, (70.01±3.56) kg, (3.01±0.30) mmol/L, (5.25±0.88) mmol/L, (2.25 ±0.42) mmol/L, (3.15±0.41) mmol/L. The control group were (8.18±1.28) mmol/L, (16.78±1.85) mU/L, 3.78±0.78, (27.36±2.45) kg/m 2, (29.78±2.39)%, (72.98±5.62) kg, (3.49±0.52) mmol/L, (6.23±1.08) mmol/L, (1.88±0.30) mmol/L, (3.98±0.89)mmol/L. The difference between the two groups was statistically significant ( t values were 5.47-16.13, all P<0.05). After 8 weeks of intervention, FBG, FINS, HOMA-IR, BMI, body fat percentage, body mass, TG, TC, HDL-C, LDL-C indicators of the observation were (5.06±0.45) mmol/L, (12.78±0.69) mU/L, 2.01±0.12, (23.25±1.18) kg/m 2, (25.05±1.19)%, (66.02±2.45) kg, (2.21±0.12) mmol/L, (4.03±0.41) mmol/L, (3.08 ±0.72) mmol/L, (2.65±0.15) mmol/L,while in the control group were (6.07±0.88) mmol/L, (14.09±1.05) mU/L, 2.95±0.45, (26.98±2.08) kg/m2, (27.18±2.06)%, (70.98±4.02) kg, (2.98±0.28) mmol/L, (5.16±0.71) mmol/L, (2.41±0.51) mmol/L, (3.29±0.39) mmol/L. The difference between the two groups was statistically significant ( t values were 5.47-30.96, all P<0.05). Conclusions:Low-calorie diet intervention combined with concentrated aerobic exercise intervention is more conducive to improving patients′ blood sugar and blood lipid levels, as well as reducing body weight.

Objective To investigate the relationship between the epidemiology of chronic rhinitis and atmospheric environmental factors in Wuhan. Methods A total of 3 371 patients with chronic rhinitis in Wuhan seventh hospital from January 2017 to January 2020 were enrolled. The incidence of chronic rhinitis in different years and seasons was compared. Then the influence of atmospheric environmental factors such as air pollution index (API), fine particulate matter (PM_2.5), inhalable particulate matter (PM₁₀), nitrogen dioxide (NO₂), sulfur dioxide (SO₂), diurnal patterns of relative humidity, wind speed, air temperature, air pressure wind speed and temperature range on occurrence of chronic rhinitis was analyzed. Results The incidence of chronic rhinitis in Wuhan showed an annual decreasing trend from 2017 to 2020, so the incidence rate was the highest in 2017 (38.83%, 1309/3371) and was the lowest in 2020 (28.98%, 977/3371). In terms of different seasons, the incidence rate was the highest in winter (33.67%, 1135/3371), and was the lowest in summer (16.11%, 543/3371). The main factors affecting the incidence of chronic rhinitis were API, PM_2.5, and PM₁₀ in spring, which were NO₂, SO₂, and daily average relative humidity in summer, those were API, PM_2.5, PM₁₀, NO₂, and SO₂ in autumn, and were API, PM_2.5, PM₁₀, NO₂, SO₂, and daily range of air temperature in winter. The lag response of patients with chronic rhinitis to atmospheric environmental factors was 2-5 days in spring, 1-6 days in summer, 0-5 days in autumn and 3-6 days in winter. Patients with chronic rhinitis have the fastest response to API and PM_2.5 in spring, the fastest response to API in summer, and the fastest response to API and PM_2.5 in autumn, respectively. Conclusion The incidence of chronic rhinitis in Wuhan is decreasing year by year, and the incidence is related to environmental and meteorological factors, and the disease onset has the characteristics of lag due to seasonal factors.

Objective:To explore the application value of three-dimensional visualization technique based on CT data in the analysis of renal vascular anatomical variation.Methods:The clinical data of 210 patients with renal tumors, adrenal tumors and renal cysts who underwent renal enhanced CT from October 2020 to June 2021 were retrospectively analyzed. Among the patients, there were 114 males and 96 females with an average age of (56.5±13.2) years. The CT data were reconstructed by 3D slicer software. According to the three-dimensional visualization model, the renal vascular anatomy was analyzed from the perspective of whether it needs to be treated during laparoscopic radical nephrectomy and laparoscopic partial nephrectomy. The variation of renal artery can be divided into multiple renal arteries, premature branches of renal artery and the mixed type with the above two variations. Renal vein variation can be divided into multiple renal veins, late confluence of renal veins and mixed type with the above two variations.Results:Among the 210 patients in this study, there were no statistically significant differences in anatomical variations of renal arteries and veins between males and females ( P=0.914 and P=0.121). Among 420 kidneys, renal artery variation (174/420, 41.4%) was more common than renal vein variation (121/420, 28.8%) ( P<0.01). 32 (7.6%) right kidneys and 38 (9.0%) left kidneys have multiple renal arteries ( P=0.432). Eighty-nine cases (42.4%) had premature branches in the right renal artery, while 37 cases (17.6%) in the left kidney ( P<0.01). 24 kidneys (5.7%) showed mixed renal artery variation. 53 (12.6%) right kidneys and 3 (0.7%) left kidneys had multiple renal veins ( P<0.01). Late confluence of renal veins was found in 41 right kidneys (9.8%) and 33 left kidneys (7.9%), respectively ( P=0.306). 8 (1.9%) mixed renal vein variants were all right kidneys.. From the perspective of laparoscopic renal surgery, there were 71 cases (33.8%) of the left kidney to deal with ≥ 2 renal arteries, as well as 103 cases (49.1%) of the right kidney ( P<0.01). There were 44 cases (21.0%) of the left kidney to deal with ≥ 2 renal veins, as well as 78 cases (37.1%) of the right kidney ( P<0.01). Conclusions:The three-dimensional visualization technique based on renal CT data is helpful to accurately evaluate the renal vascular anatomy before operation. Right renal vascular variants are more common.

Objective:To investigate the influencing factors for the recurrence of TNM(T3~4N0M0)stage Ⅱ colorectal cancer in patients aged 75 years and over after radical resection.Methods:Clinicopathologic data of 161 colorectal cancer patients aged 75 years and over undergone radical resection in our hospital from January 2012 to August 2017 were retrospectively analyzed.They were followed up for 49 months(range: 2-84 months). Survival analysis was conducted by the Kaplan-Meier method and the survival rate was examined using the Log-rank method.Multivariate analysis was conducted by the proportional hazards regression model.Results:Univariate analysis showed that age≥80 years, preoperative comorbidities involving more than 1 system, weight loss≥10%, preoperative intestinal obstruction or perforation, preoperative CEA elevation, preoperative CA199 elevation, depth of primary tumor invasion T4, dissection of lymph nodes<12, vascular invasion, nerve invasion, deficient mismatch repair(dMMR), risk stratification and adjuvant chemotherapy were related factors for the prognosis in patients with TNM stage Ⅱ colorectal cancer aged 75 years and over after radical resection.Multivariate analysis showed that preoperative comorbidities involving more than 1 system, weight loss≥10%, preoperative intestinal obstruction or perforation, preoperative CEA elevation, depth of primary tumor invasion T4, dissection of lymph nodes<12 and vascular invasion were independent risk factors for poor prognosis, and adjuvant chemotherapy was an independent factor for favorable prognosis.The 5-year-disease-free survival(DFS)rate was 41.6% in all patients.The Kaplan-Meier curves indicated that disease-free survival(DFS)between the low-risk, middle-risk and high-risk groups had a statistically significant difference( χ2=14.632, P=0.001). Kaplan-Meier survival analysis showed that high-risk patients receiving Oxaliplatin combined with Capecitabine adjuvant chemotherapy had better DFS than those receiving Capecitabine or non-adjuvant chemotherapy( χ2=11.157, P=0.004). Conclusions:DFS is improved in strictly selected patients with stage Ⅱ colorectal cancer aged 75 years and over and at high risk who receive Oxaliplatin combined with Capecitabine adjuvant chemotherapy.

Objective To analyze the distribution and antimicrobial resistance profile of clinical bacterial strains isolated from blood culture in China.Methods Clinical bacterial strains isolated from blood culture from participating hospitals of Blood Bacterial Resistance Investigation Collaborative System (BRICS) during January 2014 to December 2015 were collected.Antibiotic susceptibility tests were conducted with agar dilution or broth dilution methods as recommended by US Clinical and Laboratory Standards Institute(CLSI)2018.The data were analyzed with Whonet 5.6 software.Results During the study period,4 801 clinical bacterial isolates were collected from 26 hospitals,of which 1 798 (37.5％) were Gram-positive bacteria and 3 003 (62.5％) were gram-negative bacteria.The top 10 isolates were Escherichia coli (33.8％),coagulase-negative Staphylococcus (19.0％),Klebsiella pneumoniae (11.9％),Staphylococcus aureus (10.1％),Acinetobacter baumannii (4.0％),Pseudomonas aeruginosa (3.8％),Streptococcus (3.0％),Enterobacter sulcus (2.9％),Enterococcus faecium (2.8％) and Enterococcus faecalis (1.8％).Methicillin-resistant Staphylococcus aureus (MRSA) and methicillinresistant coagulase-negative Staphylococcus (MRCNS) accounted for 33.9％ (165/487) and 56.9％ (520/913) of Staphylococcus aureus and coagulase-negative Staphylococcus respectively.No vancomycinresistant Staphylococcus was detected.The resistance rate of Enterococcus faecium to vancomycin was 0.7％ (1/135),and no vancomycin-resistant Enterococcus faecaliss was detected.The positive rates of extendedspectrum β-1actamases(ESBLs)-producing Escherichia coli,Klebsiella pneumoniae and Proteus were 56.9％ (923/1 621),30.1％ (172/572) and 29.2％ (7/24),respectively.The positive rates of carbapenemresistant Escherichia coli,Klebsiella pneumoniae,Enterobacter,Salmonella and Citrobacter were 1.2％ (20/1 621),7.2％ (41/572),4.3％ (6/141),1.5％ (1/67) and 2.9％ (1/34),respectively.The resistance rates of Acinetobacter baumannii to polymyxin and tegacycline were 2.6％ (5/190) and 8.9％ (17/190)respectively,and that of Pseudomonas aeruginosa to polymyxin and fosfomycin were 1.1％ (2/183)and 0.6％ (1/183),respectively.Conclusions The surveillance results from 2014 to 2015 show that the main pathogens of blood stream infection in China are Gram-negative bacteria,while Escherichia coli is the most common pathogen,the detection rate of MRSA is lower than other surveillance data in the same period in China;carbapenem-resistant Klebsiella pneumoniae and Escherichia coli are at a low level as shown in this surveillance.