isolation-culture-primary-neurons-glia-from-adult-rat-urinary

Isolation and Culture of Primary Neurons and Glia from Adult Rat Urinary Bladder

The lower urinary tract has two main functions, namely, periodic urine storage and micturition; these functions are mediated through central and ...

Guangzhou University of Chinese Medicine

Previous efforts to eradicate malaria parasites, particularly Plasmodium falciparum, have failed in part due to the emergence of drug resistant parasites and mosquitoes resistant to insecticides. Using an artemisinin-based combination therapy (ACT) that kills parasites quickly, a strategy was designed to eliminate the source of transmission by mass treatment of human populations in malaria-endemic areas Cambodia.

Rapid and effective malaria control in Cambodia through mass administration of artemisinin-piperaquine.

Drug resistance of falciparum malaria is a global problem. Sulphadoxine/pyrimethamine-resistant and mefloquine-resistant strains of falciparum malaria have spread in Southeast Asia at lightning speed in 1980s-1990s, and the Cambodia-Thailand border is one of the malaria epidemic areas with the most severe forms of multi-drug resistant falciparum malaria.

Randomized trials of artemisinin-piperaquine, dihydroartemisinin-piperaquine phosphate and artemether-lumefantrine for the treatment of multi-drug resistant falciparum malaria in Cambodia-Thailand border area.

Suo Quan Wan (SQW) is a Chinese traditional prescription that has been used in clinical treatment of lower urinary tract symptoms for centuries. However, scientific basis of SQW efficacy and mechanism is still needed. This study investigated the effect of SQW on bladder function and transient receptor potential vanilloid 1 (TRPV1) expression in the bladder of rats with bladder outlet obstruction (BOO). The induced changes in bladder function in overactive bladder (OAB) rat model were observed following different periods of outlet obstruction to obtain an appropriate rat model.

Effect of the Chinese traditional prescription Suo Quan Wan on TRPV1 expression in the bladder of rats with bladder outlet obstruction.

Grape seed proanthocyanidin (GSPA) consists of catechin, epicatechin and epicatechin gallate, which are strong antioxidants that are beneficial to health and may attenuate or prevent Alzheimer's disease (AD). In the present study, the effects of GSPA on pheochromocytoma (PC12) cell viability were determined using cell counting kit-8 and lactate dehydrogenase (LDH) assays, whereas apoptosis and mitochondrial membrane potential (Ψm) were measured via flow cytometry analysis. The effect of GSPA administration on the behavior and memory of amyloid precursor protein (APP)/presenilin-1 (PS-1) double transgenic mice was assessed using a Morris water maze. APP Aβ peptides and tau hyperphosphorylation were examined by western blotting; whereas the expression levels of PS-1 were evaluated by reverse transcription-quantitative polymerase chain reaction and compared with pathological sections stained with hematoxylin-eosin and Congo red. Data from the  experiments demonstrated that GSPA significantly alleviated Aβ25-35 cytotoxicity and LDH leakage ratio, inhibited apoptosis and increased Ψm. The findings from the  experiments showed a significant enhancement in cognition and spatial memory ability, an improvement in the pathology of APP and tau protein and a decrease in PS-1 mRNA expression levels. Therefore, the results of the present study indicated that GSPA may be a novel therapeutic strategy for the treatment of AD or may, at the very least, improve the quality of life of patients with AD.

Effects of grape seed proanthocyanidin on Alzheimer's disease  and .

Long noncoding RNAs (lncRNAs) exhibit diverse functions, including regulation of development. Here, we combine genome-wide mapping of SMAD3 occupancy with expression analysis to identify lncRNAs induced by activin signaling during endoderm differentiation of human embryonic stem cells (hESCs). We find that DIGIT is divergent to Goosecoid (GSC) and expressed during endoderm differentiation. Deletion of the SMAD3-occupied enhancer proximal to DIGIT inhibits DIGIT and GSC expression and definitive endoderm differentiation. Disruption of the gene encoding DIGIT and depletion of the DIGIT transcript reveal that DIGIT is required for definitive endoderm differentiation. In addition, we identify the mouse ortholog of DIGIT and show that it is expressed during development and promotes definitive endoderm differentiation of mouse ESCs. DIGIT regulates GSC in trans, and activation of endogenous GSC expression is sufficient to rescue definitive endoderm differentiation in DIGIT-deficient hESCs. Our study defines DIGIT as a conserved noncoding developmental regulator of definitive endoderm.

DIGIT Is a Conserved Long Noncoding RNA that Regulates GSC Expression to Control Definitive Endoderm Differentiation of Embryonic Stem Cells.

Suo Quan Wan (SQW) is an effective traditional Chinese prescription on treated lower urinary tract symptoms (LUTS), and has been proved have modulation effect on the expression of transient receptor potential vanilloid 1 (TRPV1) in accordance with the recovery of bladder function of overactive bladder rat. This study further investigated the mechanism of SQW modulated TRPV1 signaling and bladder function using TRPV1 knockout (KO) mice.

Effect of SQW on the bladder function of mice lacking TRPV1.

Previous studies have discussed the liver stiffness measurement (LSM) performance on predicting liver-related surgical outcomes for patients of hepatocellular carcinoma (HCC) under hepatic resection, yet there is much variation in reporting and consistency of findings. Therefore, we report a meta-analysis on this issue.

Prognostic value of liver stiffness measurement for the liver-related surgical outcomes of patients under hepatic resection: A meta-analysis.

Suo Quan pill(SQP), a well-known and classical traditional Chinese medicine compound, consists of three traditional Chinese medicine: Alpinia oxyphylla Miq., Lindera aggregata (Sims) Kosterm., Dioscorea opposite. Its effect was summarized as supplementing kidney-yang and shrinkaging urination. This study evaluated the effects of the serum of rats treated with Suo Quan pill on embryonic stem cells(ES cells). Cell proliferation was detected by MTT assay. Cell cycle and apoptosis of ES cells were evaluated with flow cytometry. Nanog mRNA expression was verified by fluorescence quantitative PCR and Nanog protein in ES cells was determined by Western blot. The serum of SQP-treated rats not only promoted ES cells proliferation and Nanog expression in ES cells, but also inhibited H202 stimulated cell apoptosis. Furthermore, the serum of rats containing SQP affected the cell cycle distribution of ES cells, reducing the percentage of cells in G0/G1phase and increasing the percentage of cells in G2/M phase, increasing the proliferation index of ES cells. These results illustrate that the enhanced effect of SQP on ES cells proliferation is in part due to the increased expression of Nanog in ES cells, the accelerated cell cycle period and the inhibited apoptosis of ES cells.

Effect of the serum of rats treated with Suo Quan pill on embryonic stem cells.

To elucidate the mechanism of patchouli alcohol (PA) in treatment of rat models of diarrhea-predominant irritable bowel syndrome (IBS-D).

Inhibitory effects of patchouli alcohol on stress-induced diarrhea-predominant irritable bowel syndrome.

Hepatic fibrosis is the main pathological basis for chronic cirrhosis, and activated hepatic stellate cells (HSCs) are the primary cells involved in liver fibrosis. Our study analyzed anti-fibrosis long noncoding RNAs (lncRNAs) in activated human HSCs (hHSCs). We performed RNA sequencing (RNA-seq) and bioinformatics analysis to determine whether lncRNA expression profile changes between hHSCs activation and quiescence. Eight differentially expressed (DE) lncRNAs and three pairs of co-expression lncRNAs-mRNAs were verified by quantitative Real-Time Polymerase Chain Reaction (qRT-PCR). A total of 34146 DE lncRNAs were identified in this study. Via gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses, we found several DE lncRNAs regulated hHSC activation by participating in DNA bending/packaging complex, growth factor binding and the Hippo signaling pathway ( < 0.05). With lncRNA-mRNA co-expression analysis, three lncRNAs were identified to be associated with connective tissue growth factor (), fibroblast growth factor 2 () and netrin-4 (). The quantitative Real-Time Polymerase Chain Reaction (qRT-PCR) results of the eight DE lncRNAs and three pairs of co-expression lncRNAs-mRNAs were consistent with the RNA-seq data and previous reports. Several lncRNAs may serve as potential targets to reverse the progression of liver fibrosis. This study provides a first insight into lncRNA expression profile changes associated with activated human HSCs.

Key Anti-Fibrosis Associated Long Noncoding RNAs Identified in Human Hepatic Stellate Cell via Transcriptome Sequencing Analysis.

Diabetic bladder dysfunction (DBD) is one of the most common and bothersome complications of diabetes mellitus (DM). This study aimed to investigate the functional, structural, and molecular changes of the bladder at 0, 3, 6, 9, and 12 weeks after DM induction by streptozotocin (STZ) in male C57BL/6 mice.

Time-dependent functional, morphological, and molecular changes in diabetic bladder dysfunction in streptozotocin-induced diabetic mice.

Concern regarding the cardiotoxicity of antimalarials has been renewed because of their potential to cause QT/QTc interval prolongation related to torsade de pointes (TdP). Artemisinin-piperaquine (AP) is considered an effective artemisinin-based combination therapy (ACT) for malaria.

Article	Year
Rapid and effective malaria control in Cambodia through mass administration of artemisinin-piperaquine. Malaria journal\| PubMed ID: 20175930	2010
Randomized trials of artemisinin-piperaquine, dihydroartemisinin-piperaquine phosphate and artemether-lumefantrine for the treatment of multi-drug resistant falciparum malaria in Cambodia-Th... Malaria journal\| PubMed ID: 21827706	2011
Effect of the Chinese traditional prescription Suo Quan Wan on TRPV1 expression in the bladder of rats with bladder outlet obstruction. BMC complementary and alternative medicine\| PubMed ID: 26627190	2015
Effects of grape seed proanthocyanidin on Alzheimer's disease and . Experimental and therapeutic medicine\| PubMed ID: 27588088	2016
DIGIT Is a Conserved Long Noncoding RNA that Regulates GSC Expression to Control Definitive Endoderm Differentiation of Embryonic Stem Cells. Cell reports\| PubMed ID: 27705785	2016
Effect of SQW on the bladder function of mice lacking TRPV1. BMC complementary and alternative medicine\| PubMed ID: 27842583	2016
Prognostic value of liver stiffness measurement for the liver-related surgical outcomes of patients under hepatic resection: A meta-analysis. PloS one\| PubMed ID: 29324802	2018
Effect of the serum of rats treated with Suo Quan pill on embryonic stem cells. Pakistan journal of pharmaceutical sciences\| PubMed ID: 29386153	2018
Inhibitory effects of patchouli alcohol on stress-induced diarrhea-predominant irritable bowel syndrome. World journal of gastroenterology\| PubMed ID: 29456408	2018
Key Anti-Fibrosis Associated Long Noncoding RNAs Identified in Human Hepatic Stellate Cell via Transcriptome Sequencing Analysis. International journal of molecular sciences\| PubMed ID: 29495545	2018
Time-dependent functional, morphological, and molecular changes in diabetic bladder dysfunction in streptozotocin-induced diabetic mice. Neurourology and urodynamics\| PubMed ID: 31006139	2019
Effect of artemisinin-piperaquine treatment on the electrocardiogram of malaria patients. Revista da Sociedade Brasileira de Medicina Tropical\| PubMed ID: 31141053	2019

Bo Tan

Biography

JoVE Journal Publications

Other Publications