Objective To explore the acute toxic reactions of memantine in neonatal rats. Methods Based on Completely Lethal dose(LD_(100)) and median lethal dose (LD_(50))of memantine in SD neonatal rats acquired in a preliminary test of death dose, 60 neonatal rats were randomly divided into normal group which were given water injection intraperitoneally and 5 study groups which were given different doses of memantine intraperitoneally.LD_(50) was calculated with Bliss method and the toxic reactions of memantine were observed in all neonatal rats of 6 groups after administration of memantine. Results LD_(50) of memantine in SD neonatal rats was((74.386?2.811)) mg/kg with 95% confidence at the range of 59.334-93.257 mg/kg.Side effects occurred at 1-4 minutes after administration. Excitatory jitteriness,ataxia,decreased respiratory rate and passivity were usually observed in groups with a lower dosage (52.0 mg/kg,61.2 mg/kg,72.0 mg/kg);some of them also manifested side lying, cyanosis and respiratory failure.While neonatal rats with a higher dosage (85 mg/kg,100 mg/kg)mainly manifested visible symptoms of inhibition, respiratory failure,side (lying) and cyanosis.However,no jitteriness and ataxia were observed in them.The neonatal rats usually died around 1 hour after memantine administration;survival rats usually returned to normal 4-5 hours after administration.Conclusion There is a positive correlation between toxic reactions and the mortality with memantine dosage in neonatal rats.

The study aims to improve the level of fine management of medical equipments, give full play to the functions and roles for better patient service, and explore methods for evaluating the benefits of medical equipment that can take into account and reflect the needs of multiple parties. Based on objectives and key results(OKR) methods and concepts, a benefit evaluation system was developed with the goal of giving full play to the functions and roles of medical equipments, with corresponding evaluation indexes and supervision and evaluation mechanisms formulated as well. This index system could take into account the needs and concerns of hospitals, the departments in use, the management authorities and patients at large, while contributing to process supervision and continuous improvement. In the OKR practice of large medical equipments(CT, MR) from 2018 to 2019, they had performed significantly better in inspections, inspection positive coincident rates, clinical service capabilities, maintenance assurance levels, patient satisfaction, scientific research and academics among others. The use of a medical equipment benefit evaluation system based on OKR concepts and methods can provide effective evaluation indicators for the operation and management of medical equipments. In addition, the system can maintain internal improvement momentum leveraging process supervision and continuous improvement methods, in order to assure the elevation of fine management level of medical equipments of modern hospitals, thus offering better medical services for patients at large.

Objective To observe the effects of eye acupuncture and body acupuncture on tumor necrosis factor-α(TNF-α) expression in the cerebral cortex of rats after ischemia-reperfusion injury,in order to investigate the differences in therapeutic function between eye acupuncture and body acupuncture against acute cerebral ischemia-reperfusion injury. Method 48 Rats established by suture method were randomly divided into control group,sham operation group,model group,eye-acupuncture in point area group,eye-acupuncture outside point area group and body acupuncture group. After reperfusion 24 h,the neurophysical behaviours were accessed by ZeaLonga neurophysical impairment marks;the levels of plasma TNF-αwere determined by ELISA method;the expression of ischemic cerebral cortex TNF-αmRNA was measured by RT-PCR method;the expression of ischemic cerebral cortex TNF-αprotein was detected by western blot. Results After reperfusion 24 h,compared with control group,neurologic impairment marks of eye-acupuncture therapy in point area group and body acupuncture group both decreased obviously (P<0.01),however there were no significant differences between the eye-acupuncture in point area group and body acupuncture group;the levels of plasma TNF-αin rat cerebral cortex after the eye acupuncture therapy and body acupuncture therapy were obviously decreased (P<0.01),however there were no significant differences between the eye-acupuncture in point area group and body acupuncture group; the expressions of TNF-α mRNA and protein in rat cerebral cortex after the eye acupuncture therapy and body acupuncture therapy were also obviously down-regulated (P<0.01),however there were no significant differences between the eye-acupuncture in point area group and body acupuncture group.Conclusion The eye and body acupuncture therapy show the same effects on treating cerebral ischemia reperfusion. The mechanisms of these two therapies may be related to up regulating TNF-αexpression in rat cerebral cortex with ischemia-reperfusion injury.

Objective To analysis 2 years follow-up clinical effects in endodontic lesion combined periodontal in treatment with Vitapex .Methods 112 patients with periodontal endodontic lesion combined periodontal were randomly divided into control group (56 cases ,75 teeth) and study group(56 cases ,77 teeth) .Treatment of Zinc oxide glycerin paste combined with gutta percha filling root canal was used in control group ,while Vitapex combined with gutta percha filling root canal was used in study group .After 2 years ,the clinical data of the two groups were analysed .Results The total effective rate of anterior and posterior in study group were significant higher than in control group(P<0 .05) .The total effective rate of of I type ,II type and III type lesions in study group were higher than in control group(P<0 .05) .Conclusion Treatment of Vitapex combined with gutta percha filling root canal in endodontic lesion combined periodontal has better clinical effectiveness to promote periapical and periodontal tissue healing than control group .

Objective To investigate the relationship between the level of serum uric acid(SUA) and carotid atherosclerosis in male patients with type 2 diabetes mellitus(T2DM). Methods A collection of 579 male T2DM patients with or without carotid atherosclerosis were grouped based on quartiles of SUA. Age, SUA, smokers, duration, body mass index(BMI), blood pressure, total cholesterol(TC), triglyceride(TG), high-density lipoprotein cholesterol(HDL-C), low-density lipoprotein cholesterol(LDL-C), blood urea nitrogen(BUN), creatinine(Cr), and HbA1C were determined in all subjects. The plaques in carotid arteries and intima-media thickness(IMT) were measured with high-resolution ultrasound. Results BMI, systolic and diastolic blood pressures, TG, and Cr showed a gradual increase, while HDL-C and HbA1C showed a gradual decrease according to the higher SUA quartiles in male T2DM(P＜0.05). Nevertheless, the detectable rates of smokers, duration, age, TC, LDL-C, and BUN had no relationships with the SUA quartiles(P＞0.05). The detectable rate of carotid atherosclerosis and the thickness of carotid plaque were positively associated with the levels of SUA in male patients with T2DM(P＜0.05). However, intima-media thickness of carotid arteries did not illustrate the correlation with the levels of SUA in male T2DM patients(P＞0.05). Age, HbA1C, and SUA were independent factors of carotid atherosclerosis in these patients by logistic regression(P＜0.05). Conclusion The levels of SUA seems to be associated with the occurrence and development of carotid atherosclerosis in male patients with T2DM.

Objective To explore the feasibility of the application of non fasting blood lipid in the hospitalized population.Methods Self-control study was used.608 patients(aged 20~86 years old) were enrolled from April 2015 to October 2016 in lipid center of FuWai hospital.Fasting sample and non-fasting sample(1~4 h after breakfast) were collected from every patient and lipid profile including TG (triglyceride), TC (total cholesterol), HDL-C (high density lipoprotein cholesterol) and LDL-C (low density lipoprotein cholesterol) were measured in clinical laboratory.The results of two tests were compared using the Wilcoxon signed-rank test.Results The differences between non-fasting and fasting lipid test were +0.47 mmol/l (+30%) for TG,-0.03 mmol/l (-2.8%) for HDL-C,-0.09 mmol/l (-3%) for LDL-C and-0.24 mmol/l (-8.7%) for calculated LDL-C (P<0.001 respectively).The differenceswere +0.01 mmol/l for TC and +0.02 mmol/l for non-HDL-C,therefore no statistical difference was observed.When the TG level was stratified,the level of non-fasting LDL-C using directing test method was not significantly different between TG> 4.5 mmol/L and the whole (0.07 vs.0.09),but the level of non-fasting LDL-C using formula method wassignificantly different between TG> 4.5 mmol/L and the whole (0.66 Vs.0.24),andthe drops were 34.9% vs.8.7%.Conclusion Non-fasting lipid test could be an effective routine method for lipid evaluation in the hospitalized population.

Objective:To evaluate the clinical correlation between the CardioChek PA analyzer (CCPA)and a clinical laboratory reference method to use for screening program purposes.Methods:Fasting blood samples were collected on 325 patients (age:23 -86 years).One venous sample was col-lected using a serum tube for the evaluation on a Beckman reference analyzer.A second venous sample was collected in a lithium heparin tube and was evaluated on the CCPA analyzer.Linear regression analy-ses and Bland-Altman method were performed for each measured analyte:total cholesterol (TC),high density lipoprotein-cholesterol (HDL-C),triglycerides (TG)and low density lipoprotein-cholesterol (LDL-C).Results:Our results demonstrated a good clinical agreement for TC,HDL-C,TG and LDL-C (97.0%,92.9%,92.4% and 83.7%)in comparison with the CCPA to the reference analyzer.The correlation coefficients were 0.875,0.81 3,0.91 0,0.864,respectively.P values all <0.001 .There was no significant difference in the detection rate of hyperlipidemia in TC,HDL-C and LDL-C.Conclu-sion:We have identified the pre-analytic phase as an important step to guarantee the quality of results and indicated that the CCPA is a reliable lipid point-of-care testing system that can be used for the appli-cation of clinical screening anywhere.

Objective To investigate the pathomorphology effects of memantine on organs in neonatal rats.Methods Sixty-eight neonatal rats were randomly divided into 7 groups:5 groups by different doses memantine intraperitoneally and the controls by water intraperitoneally.The pathomorphology changes of organs were observed in all dead neonatal rats promptly after administration of memantine and in all survived rats after 7 days recover.Results 1.The ratio of organ weight and body weight in dead neonatal rats were higher than those of controls.2.The result of pathomorphology indicated that neurodegeneration and necrosis in the brain,the liver congestion and cell degeneration.The other organs had not distinct changes.3.The pathologic changes and mortality rate of neonatal rats were positively correlated with the dosage of memantine.Conclusion Memantine will affect liver and brain of neonatal rats.

Objective:To analyze the clinical features and CYP17A1 gene mutation of 17α-hydroxylase/17, 20-lyase deficiency (17OHD). Methods:The clinical data, laboratory examination and genetic results of 6 children with 17OHD in the Department of Endocrinology, Children′s Hospital Affiliated to Capital Institute of Pediatrics from March 2014 to December 2019 were enrolled and analyzed retrospectively.Meanwhile, the clinical types of all congenital adrenocortical hyperplasia (CAH) patients were calculated and then the incidence of 17OHD was calculated.Results:The 6 cases were from 5 families, and the age at diagnosis was ranged from 1 year and 6 months to 15 years old, in which 2 cases were 46, XX and 4 cases were 46, XY.Their gender were all female.Three cases presented with hypertension (50.0%), 4 cases with hypokalemia (66.7%), and 1 case with labia mass (16.7%). The gonad developed into a testis in patients with 46, XY, and patients with 46, XX had ovarian hypoplasia.The laboratory tests revealed an decrease in the cortisol at 8 AM in all cases, ranging from 0.62 to 5.93 mg/L.Five cases displayed an increase in adrenocorticotropic hormone (ACTH) in the range of 84-271 ng/L, and 1 patient with normal ACTH (58 ng/L) had a peak cortisol of 1.75 mg/L after the ACTH challenge test.Elevated progesterone was detected in 6 patients with a normal 17 hydroxyprogesterone level.Further results proved low levels of testosterone and estradiol, and high levels of luteinizing hormone (LH), and follicle stimulating hormone (FSH). CT scan showed mild adrenal hyperplasia in all cases.Among 114 CAH patients during the same period, the incidence of 17OHD came second at 5.3%.The CYP17A1 gene mutation results indicated that 2 unrelated patients were homozygous mutation for p. Y329fs (c.985_987delTACinsAA), 2 siblings were compound heterozygous mutations for p. Y329fs and exon 1-7 deletion, 1 patient was compound heterozygous mutations of p. Y329fs and p. R416C (c.1246C>T), and 1 patient was homozygous mutations for p. L465P (c.1394T> C), which was first reported in China. Conclusions:17OHD is not rare in CAH.Female children with hypokalemia, hypertension, and hypogonadism can lead to diagnostic suspicion of 17OHD.The p. Y329fs mutation in Chinese 17OHD children is a hotspot.The p. L465P (c.1394T>C) mutation is a new mutation in China and it could enrich the mutant spectrum of CYP17A1 gene in China.

Adenocarcinoma ; metabolism ; pathology ; surgery ; Adenoma ; metabolism ; pathology ; surgery ; Adult ; Aged ; Colorectal Neoplasms ; metabolism ; pathology ; surgery ; Female ; Humans ; Intestinal Mucosa ; metabolism ; pathology ; Lymphatic Metastasis ; Male ; Middle Aged ; Neoplasm Staging ; Receptors, CXCR ; metabolism ; Young Adult