Background: Bariatric and metabolic surgery have been routinely performed following the rapid increase in obesity and metabolic diseases worldwide. Of all evolving procedures, Roux-en-Y gastric bypass (RYGB) is considered the gold standard for surgical treatment of patients with type 2 diabetes mellitus (T2DM) and obesity. RYGB was introduced in China nearly 20 years ago, but the number of RYGB surgeries only accounts for 3.
View Article and Find Full Text PDFHuan Jing Ke Xue
January 2021
We investigate a family of dinuclear dysprosium metallocene single-molecule magnets (SMMs) bridged by methyl and halogen groups [Cp' Dy(μ-X)] (Cp'=cyclopentadienyltrimethylsilane anion; 1: X=CH ; 2: X=Cl ; 3: X=Br ; 4: X=I ). For the first time, the magnetic easy axes of dysprosium metallocene SMMs are experimentally determined, confirming that the orientation of them are perpendicular to the equatorial plane which is made up of dysprosium and bridging atoms. The orientation of the magnetic easy axis for 1 deviates from the normal direction (by 10.
View Article and Find Full Text PDFGene networks have been broadly used to predict gene functions based on guilt by association (GBA) principle. Thus, in order to better understand the molecular mechanisms of esophageal squamous cell carcinoma (ESCC), our study was designed to use a network-based GBA method to identify the optimal gene functions for ESCC. To identify genomic bio-signatures for ESCC, microarray data of GSE20347 were first downloaded from a public functional genomics data repository of Gene Expression Omnibus database.
View Article and Find Full Text PDFThe pentagonal bipyramidal single-ion magnets (SIMs) are among the most attractive prototypes of high-performance single-molecule magnets (SMMs). Here, a fluorescence-active phosphine oxide ligand CyPh PO (=cyclohexyl(diphenyl)phosphine oxide) was introduced into [Dy(CyPh PO) (H O) ]Br ⋅2 (CyPh PO)⋅EtOH⋅3 H O, and combined dynamic magnetic measurement, optical characterization, ab initio calculation, and magneto-optical correlation of this high-performance pseudo-D Dy SIM with large U (508(2) K) and high magnetic hysteresis temperature (19 K) were performed. This work provides a deeper insight into the rational design of promising molecular magnets.
View Article and Find Full Text PDFAim: To evaluate the feasibility of side-to-side anastomosis of the lesser curvature of stomach and jejunum in laparoscopic Roux-en-Y gastric bypass (LRYGB).
Methods: Seventy-seven patients received side-to-side anastomosis of the lesser curvature of stomach and jejunum by utilization of linear stapler in LRYGB from April 2012 to July 2015 were retrospectively analyzed.
Results: All patients were successfully completed laparoscopic gastric bypass with the side-to-side anastomosis of the lesser curvature of stomach and jejunum.
Plasmonic nanostructures with sub-10 nm gaps possess intense electric field enhancements, leading to their high reputation for exploring various functional applications at nanoscale. Till now, although large amounts of efforts have been devoted into investigation of such structures, few works were emphased on the nonlinear optical properties in near-ultraviolet (UV) region. Here, by combining sputtering technique and an optimized anodic aluminum oxide (AAO) template growing method, we obtain aluminum (Al) nanorod array film (NRAF) with average rod diameter and gap size of 50 and 7 nm, respectively.
View Article and Find Full Text PDFZhongguo Shi Yan Xue Ye Xue Za Zhi
April 2014
This study was aimed to explore the role of full-automatic blood analyzer Sysmex XE-2100 in early screening and diagnosing the hematologic malignancies. A total of 288 samples of the patients with hematologic malignancies was examined. Then, the scatter plots, alarm information and blood smears were analyzed.
View Article and Find Full Text PDFObjective: To observe postoperative glucose tolerance, gastric inhibitory polypeptide (GIP) , and glucogan-like peptide-1 (GLP-1) in normal glucose level dogs after undergoing gastric bypass procedures, and to explore the mechanism of gastric bypass procedures to treat type 2 diabetes.
Methods: The 6 dogs with normal glucose tolerance had undergone gastric bypass procedures, and measure preoperative and postoperative oral and intravenous glucose tolerance (at time points 1, 2, and 4 weeks) through changes in blood glucose, insulin, gastric inhibitory polypeptide (GIP), glucagon-like peptide-1 (GLP-1), and measure preoperative and postoperative week 4 pancreatic tissue morphology.
Results: Second weeks after operation, the fasting blood sugar was (3.
Zhonghua Wei Chang Wai Ke Za Zhi
July 2013
Objective: To evaluate the application of side-to-side anastomosis of the lesser curvature of stomach and jejunum in laparoscopic Roux-en-Y gastric bypass (LRYGB).
Methods: Clinical data of 29 patients with type 2 diabetes mellitus (T2DM) undergoing side to side anastomosis of the lesser curvature of stomach and jejunum in LRYGB from May 2012 to November 2012 in Department of General Surgery, Beijing Tiantan Hospital, Capital Medical University were analyzed retrospectively.
Results: All the procedures were successfully completed without conversion to laparotomy.
Background: Pancreatic cancer is one of the most aggressive tumors with a dismal prognosis. The membrane cytoskeletal crosslinker Ezrin participates in several functions including cell proliferation, adhesion, motility and survival. There is increasing evidence that Ezrin is overexpressed in vast majority of malignant tumors and regulates tumor progression.
View Article and Find Full Text PDFRadixin, encoded by a gene on chromosome 11, plays important roles in cell motility, invasion and tumor progression. However, its function in pancreatic cancer remains elusive. In this study, radixin gene expression was suppressed with a lentivirus-mediated short-hairpin RNA (shRNA) method.
View Article and Find Full Text PDFPreviously we have demonstrated that a Rhodiola crenulata extract (RCE), containing a potent antioxidant salidroside, promotes neurogenesis in the hippocampus of depressive rats. The current study was designed to further investigate the protective effect of the RCE on neurogenesis in a rat model of Alzheimer's disease (AD) induced by an intracerebroventricular injection of streptozotocin (STZ), and to determine whether this neuroprotective effect is induced by the antioxidative activity of salidroside. Our results showed that pretreatment with the RCE significantly improved the impaired neurogenesis and simultaneously reduced the oxidative stress in the hippocampus of AD rats.
View Article and Find Full Text PDFThe purpose of the present study was to investigate the effect of Ganoderma spores lipid (GSL) on Bax, Bcl-xl and Caspase-3 expression in damaged retina and to address the effect of GSL on photoreceptor cell lesions induced by N-methyl-N-nitrosourea (MNU). Thirty 50-day-old female Sprague-Dawley rats were divided randomly into five groups to detect the dose-response effect of GSL by electroretinogram (ERG) analysis. Four groups received different daily GSL doses (0.
View Article and Find Full Text PDFObjective: To explore the effects of Rhodiola rosea on the level of 5-hydroxytryptamine (5-HT), cell proliferation and differentiation, and number of neuron in cerebral hippocampus of rats with depression induced by chronic mild stress.
Method: Fifty rats were divided into 5 groups: normal control, untreated, negative control, positive control and Rhodiola rosea-treated groups. There were 10 rats in each group.
Objective: To study the anticancer activity of Rhodiola sachalinensis in vitro and in vivo experiments.
Methods: The effect of Rhodiola sachalinensis extracts at various concentrations on T241 fibrosarcoma cells proliferation and cytotoxic potential were measured. We divided T241 fibrosarcoma-bearing C57Bl6/J mice into two groups, the tumor inhibition rate were observed.
Objective: To explore the effects of Rhodiola rosea on the body weight and the intake of sucrose and water in depressive rats induced by chronic mild stress.dz
Methods: A total of 70 male SD rats were divided into seven groups, including normal control group (treated with 0.5% sodium carboxymethycellulose), untreated group, negative control group (treated with 0.
Objective: To explore the effects of Valerian on the level of 5-hydroxytryptamine (5-HT), cell proliferation and neuron number in cerebral hippocampus of rats with depression induced by chronic mild stress.
Methods: Seventy rats were divided into 7 groups: normal control, untreated, negative control, positive control, and low-, medium- and high-dose Valerian-treated groups. There were 10 rats in each group.
Objective: To investigate the effects of Ganoderma spores on mitochondria-related molecular substances in hippocampus of young rats birthed by rats with gestational hypertension.
Methods: Nitric oxide synthase (NOS) inhibitor Nw-nitro-L-arginine methylester (L-NAME) was intraperitoneally injected into pregnant rats to induce gestational hypertension, and Ganoderma spores were administered orally. The effects of Ganoderma spores on levels of mitochondria-related molecular substances in hippocampus of young rats birthed by the rats with gestational hypertension were evaluated with immunoradiometric assay of cAMP, RT-PCR analysis of related genes, and detection of enzyme activity.
Objective: To explore whether pre-administration of Ganoderma lucidum spore (GASP) can reduce incidence of neural tube defects (NTDs) induced by all-trans retinoic acid (ATRA) in pregnant mice.
Methods: Twenty pregnant mice were randomly divided into four groups: normal control group, solvent-treated group, ATRA-induced group, and GASP-treated plus ATRA-induced group. GASP solution, which was prepared with solvent (sodium carboxymethyl cellulose), was fed to the pregnant mice in the GASP-treated plus ATRA-induced group twice a day from embryo (E) 0 d to E10.