MiR-504 and miR-205 May be Used to Evaluate Prognosis and Chemotherapeutic Effect of Pancreatic Cancer Patients

To explore the value of miR-504 and miR-205 in evaluating the prognosis and chemo-therapeutic effect of pancreatic cancer (PC) patients. Ninety-six PC patients who came to our hospital from March 2015 to February 2017 were selected as the research group (RG), and 96 healthy subjects during the same period were considered as the control group (CG). Serum miR-504 and miR-205 of subjects in the two groups were detected and compared by Rt-PCR, and the miR-504 and miR-205 expression levels in serum of PC patients before and after chemotherapy were analyzed, so did the relationship between miR-504, miR-205 and prognosis of patients. The miR-504 and miR-205 expression levels in serum of PC patients were dramatically higher than those of healthy people (P[ 0.05), and the expression levels in serum of those in the chemotherapy-effective group were dramatically lower than those of those in the chemotherapy-ineffective group (P[ 0.05). Moreover, the 3-year mortality of patients with high expression of miR-504 and miR-205 was higher than that of those with low expression (P[ 0.05), and the miR-504 and miR-205 expression levels in dead patients were higher than those in living patients. miR-504 and miR-205 had high predictive value for poor prognosis of PC patients. Univariate analysis identified that their poor prognosis was related to pathological stage, lymph node metastasis, differentiation degree and expression of miR-504 and miR-205 (P[ 0.05). Cox multivariate analysis identified that pathological stage, lymph node metastasis, differentiation degree and expression of miR-504 and miR-205 were independent risk factors for poor prognosis (P[ 0.05).DLX6-AS1 is highly expressed in the serum of PC patients, and it can evaluate the chemotherapeutic effect and predict the prognosis. So, it may be used as a new target direction for evaluating the chemotherapeutic effect and predicting the prognosis of patients.

Glipizide blocks renal interstitial fibrosis by inhibiting AKT signaling pathway

OBJECTIVE

Diabetes affects the renal function at a certain stage. Oral medication glipizide plays a hypoglycemic effect mainly through releasing insulin, while more insulin is derived from islet β cells. It is still controversy whether antidiabetics. This study mainly intends to investigate the role of glipizide in inhibiting renal interstitial fibrosis.

MATERIALS AND METHODS

A total of 93 SD rats were purchased from Guangdong animal monitoring and established unilateral ureteral obstruction (UUO) model to simulate renal interstitial fibrosis. Forty rats in the experimental group received glipizide intraperitoneal injection for a week at 30 days after modeling, while another 40 rats in the control group received a normal saline injection. The last 10 rats were treated as blank group. Hematoxylin and eosin (HE) staining was applied to test renal interstitial fibrosis. Immunohistochemistry was used to detect fibronectin expression in glomerular and renal tubules. AKT signaling pathway related factors expression was measured by Western blot to determine AKT signal activation.

RESULTS

HE staining showed that the entire kidney cytoplasm red dye becomes shallow, renal medulla gradually disappears, renal tubular epithelial cells enlarge, vacuoles degeneration, renal tubule and collecting tube expansion, inflammatory cells infiltration after UUO modeling. Glipizide treatment decreased dilated renal tubule number, improved glomerulus integrity, and reduced inflammatory infiltration. Fibronectin level in the experimental group was significantly lower than that in control (p<0.05). Western blot revealed that p-AKT expression downregulated after glipizide treatment.

CONCLUSIONS

Glipizide blocks renal interstitial fibrosis by inhibiting AKT signaling pathway.

Compound regressive models for quantitative multivariate phenotypes: application to lipid and lipoprotein data

In this paper we consider the compound version of the class D regressive models for a p variate phenotypic outcome. The likelihood function is noted and the results are illustrated with the Donner Laboratory data, without the assumption of a major gene for the brevity of presentation.

A detailed multipoint gene map of chromosome 1q

Utilizing genotyping data for 23 markers, we have constructed a 21-locus multipoint genetic map of the long arm of chromosome 1. Five new RFLPs are reported. The map integrates anonymous loci from previous primary linkage maps and incorporates markers for 10 coding sequences. These markers form a continuous linkage group of 85 cM in males and 141 cM in females. The map was constructed employing the LINKAGE and CRIMAP computational methodologies via a stepwise algorithm.