Objective To investigate the serum amyloid A (SAA) and interleukin-18(IL-18)concentration in the pathogenesis of type 2 diabetes mellitus (T2DM) and its macrovascular complications, and study the relation between them. Methods ELISA was used to assay serum SAA and IL-18 levels in 65 T2DM patients (including 31 cases with macrovascular complications) and 30 healthy controls. Results Serum SAA and IL-18 levels [(3.09±0.96)mg/L, (98.8±36.4)ng/L]were significantly elevated in patients with T2DM as compared with those in control subjects [(1.06±0.45)mg/L, (58.9±15.6)ng/L](P<0.05). There was significant difference of SAA and IL-18 levels between T2DM patients with [(6.34±1.52) mg/L,(141.2±48.3)ng/L]and without macrovascukar complications [(2.65±0.39)mg/L, (80.2±20.1)ng/L](P < 0.05).Univariate linear regression analysis showed significant positive correlations between serum IL-18 with SAA (r =0.615, P<0.05), SAA, IL-18 and fasting blood glucose (FBG) had mutual positive correlations (r=0.312, 0.428, P< 0.05, respectively). Conclusions In patients with T2DM, serum SAA and IL-18 concentration is greater than in non-diabetic subjects. SAA and IL-18 play important roles in the initiation and development of T2DM. The study suggests that SAA and IL-18 might be an important independent risk factor.

Objective To observe the long-term toxicity of Jiuxin Fumai Injection and to investigate the safety of clinical medication.Methods The rats were given intramuscular injection with Jiuxin Fumai Injection in large,medium,small dosage(respectively 20,10,5g? kg-1)every day for two weeks,and normal saline group served as the normal control.Two weeks after drug withdrawal,the toxic reaction in rats was observed.Results After two-week continuous administration,all the animals were alive.Some animals were vomiting and getting excited when administered the large dosage and medium dosage injection.The blood sugar elevated,the thoracic gland coefficient lowered,the hepatic cells were cloudily swollen in the animals of large dosage group.Two weeks after drug withdrawal,the above phenomenon vanished.There was no obvious toxic reaction in the small-dosage injection group.Conclusion Long-term administration of Jiuxin Fumai Injection in large dosage shows certain toxic reaction in rats.The safe dosage for intramuscular administration is less than 5 g? kg-1? d-1.

OBJECTIVE To discuss the operative plan for nasal cavity abnormality and evaluate the effect of revision FESS. METHODS A retrospective study of 36 revision FESS performed during 2002.3-2005.5 (age from 17 to 55 years old) is presented. Patients were evaluated with endoscopic examination of the nasal cavities and computed tomography of the sinuses and nasal cavities. Information was also collected during the revision surgery. The plan was designed according to nasal cavity abnormality. RESULTS The reasons of revision FESS: Among 36 cases there are 24 ethmoid sinusitis, 16 cases with recurrence of polyps,13 middle meatal stenosis, 11 middle turbinate adhesion, 10 septal deviation, 5 frontal recess stenosis, 5 sphenoid sisusitis, 3 maxillary ostium obstruction,3 inferior turbinate hypertrophy. Follow up for 6 month～43 month after revision FESS, 22 cases were successful, 10 satisfied and 4 inefficacy. CONCLUSION The primary FESS failure was associated with nasal cavity structure diseases. Meticulous attention in these areas and correcting it during surgery may reduce recurrence and ensure operative effect after revision FESS.

AIM and METHODS: To detect the changes of amyloid protein (?-AP) and polypeptide growth factor levels and study their role in the possible pathogenesis of Alzheimers disease (AD) and vascular dementia (VD). We detected serum ?-AP, transforming growth factor- ?(TGF-?) and insulin-like growth factor (IGF-Ⅱ) levels by radio immunoassay in 8 patients with AD,15 patients with VD and 63 patients with ischemic cerebrovascular disease(ICVD) and 38 cases healthy volunteers. RESULTS: In AD and VD groups, serum ?-AP, TGF-? and IGF-Ⅱ were significantly higher than that in ICVD and control group; Serum ?- AP,TGF-? and IGF-Ⅱ contents in ICVD group were obviously higher than that in normal control, the highest increase occurred in sequel of cerebral infarction(SCI) and vertebrobasislar ischemia(VBI) groups. There are positive correlation among ?- AP, TGF-? and IGF-Ⅱ in AD and VD groups.CONCLUSION: ①?- AP is a risk factor in the pathogenesis of AD and VD. ② TGF- ? and IGF-Ⅱ play roles in the neurotoxin effect that lead to dementia. ③ ?-AP plays a important role in formation of senile plaque.

Objective To observe the changes of serum and fecal taurine-conjugated bile acid levels and its association with glucose metabolism during the spontaneous development of type 2 diabetes in OLETO rats.Methods Twenty male OLETF rats(4 weeks old)were included and 10 male LETO rats of the same age were used as the normal control group.OLETF rats were fed with high fat diet whereas LETO rats were fed with normal diet.Serum and fecal taurine-conjugated bile acid levels of OLETF rats were tested at different stage of diabetes including baseline, normal glucose tolerance, impaired glucose tolerance and diabetes periods, and the association of taurine-conjugated bile acid level with body weight, blood glucose, and glucose-regulating hormones were also investigated.Results Compared with LETO rats, the baseline serum levels of taurine-conjugated bile acid in OLETF rats did not change, but the levels of fecal taurine-conjugated bile acid including taurine-conjugated chenodeoxycholic acid(TCDCA), taurocholic acid(TCA)and taurine-conjugated deoxycholic acid(TDCA)were significantly decreased [(14.25±7.18 vs 0.90±0.31)mg/kg,(7.12±4.14 vs 1.30±0.35)mg/kg,(4.30±1.78 vs 1.02±0.14)mg/kg, all P<0.01].During the development of diabetes, the fecal levels of TCDCA, TCA and TDCA were still lower than those in the control rats.TDCA was negatively associated with the level of fasting blood glucose(r=-0.470, P=0.032),but positively associated with the serum level of glucagon-like peptide(GLP)-l(r=0.406, P=0.044).Conclusion The decrease of intestinal taurine-conjugated bile acid level is involved in the development of diabetes in OLETF rats.Intestinal TDCA may regulate the secretion of GLP-1 by paracrine pathway.

Objective To evaluate reference range for fasting venous blood cells in the healthy 51 584 elderly people from Shuyang,China.Methods Totally 1000 non-old people and 51 584 elderly people were involved in this study.Fasting venous blood cells were collected from each group of subjects using standard procedures.The collected aliquots were processed according to standard operating procedures to determine participants' complete blood counts.Non-parametric methods were employed to calculate the reference intervals and 95 ％ confidence intervals for complete blood counts by Sysmex XE-2100 blood cell analyzer.Results The reference ranges of fasting venous blood cells in elderly subjects (male,female) were [(3.25-9.45) × 109/L and (3.35-9.39) × 109/L,WBC];[(3.87-5.55) × 1012/L and (3.71-5.19) × 1012/L,RBC] ; [(116.2-169.5)g/L and(107.4-153.6)g/L,Hb] ; [(37.2-52.4) ％ and(35.2-48.6) ％,HCT] ; [(86.3-104.8)fl and (85.2-103.5) fl,MCV] ; [(27.0-33.4) pgand(26.4-32.5)pg,MCH]; [(297.1-335.4)g/L and(293.3-330.5)g/L,MCHC];[[(38.4-54.2) and (38.6-52.9),RDW-SD]; [(11.3-15.4)％ and(11.4-15.3)％,RDW-CV];[(98.8-303.8) × 109/L and (109.9-334.8) × 109/L,PLT] ; [(1.10-3.42) and (1.20-3.78) ml/L,PCT];[(11.2-15.6) fl and(11.3-15.5)fl,MPV]; [[(8.89-16.7)％ and(9.48 17.1)％,PDW];[(20.3-49.1) ％ and (20.5-48.6) ％,PLCR],respectively.13 parameters of fasting venous blood samples in elderly people had statistically significant differences compared with non-old people (all P ＜0.05).Conclusions The reference range of fasting venous blood samples in elderly people are significantly different from non-old people.It is necessary to scientifically and reasonably establish the reference ranges for fasting venous blood cells in local elderly people.

Objective Type 2 diabetes increases the risk of colorectal cancer and reduces the survival rate of the patients. Therefore, analyzing the characteristics of colorectal cancer in patients with type 2 diabetes may help to develop precise medical measures and to improve the prognosis of patients. Methods The pathological characteristics of 123 colorectal cancer cases with or without type 2 diabetes were analyzed. In addition, PCR and pyrosequencing method were used to test the common gene mutation status of colorectal cancer, including KRAS( codons 12, 13, 61, and 146) , BRAF( codon 600) , and PIK3CA ( exons 9 and 20) , in order to investigate the molecular characteristics of colorectal cancer in diabetic patients which may provide some clues to clinical decision. Results The mean age and body mass index of patients with diabetes were higher than those of patients without diabetes, but there was no difference in the location, the degree of cell differentiation and the grade of colorectal cancer between these 2 groups. The rate of PIK3CA mutation in patients with type 2 diabetes mellitus, especially in patients with long term type 2 diabetes was significantly higher than that in patients without diabetes (28.6％vs 10.3％, P<0.05). There was no significant difference between the two groups in common BRAF and KRAS mutation sites. Conclusion Diabetes does not alter the clinical pathological characteristics of colorectal cancer, but long course type 2 diabetes increases PIK3CA mutation rate. Therefore, using medicine targeting PIK3CA gene mutation may help to improve the prognosis of patients.

Tumors pose a serious challenge to global public health. The sensitive and precise detection of tumor biomarkers is very important for early screening and diagnosis of cancers. DNAzymes with outstanding physical, chemical, and biological properties are widely applied in the design of biosensing strategies. By the use of sensing platforms such as fluorescence, electrochemistry, and surface-enhanced Raman scattering, DNAzymes facilitate the early screening and detection of tumors. This article summarizes the functional mechanism and common classifications of DNAzymes, and the updates of DNAzymes-based novel biosensing technologies within the field of liquid biopsy, expecting the technical challenges yet to be surmounted and future developmental directions.

Objective:To investigate the efficiency and safety of peritoneal dialysis (PD) in pediatric patients with acute kidney injury (AKI).Method:A retrospective study of children who underwent PD for AKI in the First Affiliated Hospital of Xi’an Jiaotong University from 2003 to 2013 was performed, and the laboratory examinations, the causes, the complication, the prognosis and the risk factors were evaluated.Results:The study included 48 children, with the age of (67.6±51.7) months (ranging from 3 months to 15 years old), including 31 males (64.6%) and 34 co-infections (70.8%). Primary glomerulonephritis (27.1%) was the most common cause of AKI, followed by the hemolytic uremic syndrome (18.7%) and drug induced AKI (18.7%). Peritoneal dialysis was performed manually using percutaneous or adapted catheters. The duration of PD during hospitalization was 11(7,14) days. PD treatment was highly effective in attenuation of toxics retention and correction of electrolyte disturbances (all P<0.05). There were 3 cases of PD-related complications, including 1 case of peritonitis, 1 case of catheter outflow obstruction, 1 case of catheter exit site hematoma, and no child patient died of PD complications. Among the AKI children, 37 cases (77.1%) recovered with the PD treatment and had the catheter successfully removed till discharge, 7 cases (14.6%) needed further peritoneal dialysis and 4 cases (8.3%) died. The serum albumin level was significantly higher in patients who got recovered with PD treatment than other unrecovered cases [(32.6±6.7) g/L vs (23.2±4.3) g/L, t=-3.994, P<0.001]. Conclusions:PD can be safely and efficiently performed for the treatment of pediatric AKI. Low albumin level may be related to poor prognosis of AKI.

Background Animal studies have shown that exposure to organophosphate esters (OPEs) disturbs the composition of gut microbiome in rodents and zebrafish. However, current associated evidence in humans is limited. Considering the importance of gut microbiome in neonatal development, we need to investigate the impact of OPEs exposure on the early development stage of neonatal microbiome. Objective To investigate the associations between umbilical OPEs exposure and the diversity and composition of gut microbiome in newborns. Methods Based on the Shanghai Maternal-Child Pairs Cohort (MCPC), 391 mother-infant pairs with comprehensive follow-up information and bio-samples were enrolled in this study. Concentrations of OPEs in neonatal cord blood were quantified using ultra performance liquid chromatography-tandem mass spectrometry. Meconium samples were collected after delivery and measured through 16S rRNA sequencing on the Illumina Miseq platform. Multiple linear regression models were used to assess the effects of OPEs exposure on the alpha diversity of meconium microbiome. Principal coordinate analysis and permutational multivariate analysis of variance based on unweighted UniFrac distance were used to compare the beta diversity differences between high and low exposure groups of OPEs. Linear discriminant analysis effect size (LEfSe) was utilized to analyze the differential gut microbiome taxa between high and low OPEs exposure groups. The functional pathways involved in the meconium microbiome were predicted based on the Kyoto Encyclopedia of Genes and Genomes (KEGG) database, and multivariate analysis by linear models (MaAsLin2) were conducted to explore the effects of OPEs exposure on gut microbiome pathways. Results Seven OPEs were detectable in the neonatal cord blood samples, of which four were detected higher than 50% including tributyl phosphate (TBP), tris (2-butoxyethyl) phosphate (TBEP), 2-ethylhexyl diphenyl phosphate (EHDPP), and tris (2-chloro-1 (chloromethyl) ethyl) phosphate (TDCPP), and the median concentrations of these four congeners were as follows: 0.52 μg·L⁻¹ for TBP, 2.41 μg·L⁻¹ for TBEP, 0.13 μg·L⁻¹ for EHDPP, and 2.23 μg·L⁻¹ for TDCPP. A significant association was observed between umbilical TBEP and TDCPP exposure and alpha diversity indices in neonatal meconium microbiome. Beta diversity significantly differed across varied high and low OPEs exposure groups. The results of LEfSe analysis indicated a significant correlation between umbilical OPEs exposure and 27 genera, including Streptococcus, Corynebacterium, Neisseria, Haemophilus, and Parabacteroides. The MaAsLin2 analysis identified associations between OPEs exposure and upregulation of pathways related to linoleic acid metabolism, steroid biosynthesis, Toll and Imd signaling pathway, retinol metabolism, NOD like receptor signaling pathway, and fatty acid biosynthesis . Conclusion Umbilical OPEs exposure is associated increased alpha diversity indices, increased relative abundances of Neisseria, Streptococcus, Parabacteroides, and Corynebacterium in the gut microbiome, as well as predicted metabolic pathway alterations in linoleic acid metabolism, fatty acid biosynthesis, etc. These findings indicate that umbilical OPEs exposure may disrupt meconium microbiome equilibrium.