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Experimental Biology and Medicine

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https://www.readbyqxmd.com/read/28092183/therapeutic-effects-of-hyaluronidase-on-acquired-lymphedema-using-a-newly-developed-mouse-limb-model
#1
Kangsan Roh, Sungrae Cho, Jae-Hyun Park, Byong Chul Yoo, Won-Ki Kim, Seok-Ki Kim, Kyewon Park, Hee Kang, Jin-Mo Ku, Chang-Hwan Yeom, Kyunghoon Lee, Sukchan Lee
Acquired lymphedema is one of the most dreaded side effects of cancer treatment, such as surgical treatment or irradiation. However, due to the lack of appropriate animal models, there is no effective therapeutic method to cure acquired lymphedema. To develop a reproducible acquired lymphedema animal model, we devised a mouse hind limb model by removing a superficial inguinal lymph node, a popliteal lymph node, a deep inguinal lymph node, and the femoral lymphatic vessel. We measured the volume of lymphedematous leg and observed the change in level of hyaluronic acid (HA) and lymphangiogenic factors after injecting hyaluronidase...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28092182/an-estrogen-receptor-%C3%AE-selective-agonist-inhibits-non-alcoholic-steatohepatitis-in-preclinical-models-by-regulating-bile-acid-and-xenobiotic-receptors
#2
Suriyan Ponnusamy, Quynh T Tran, Thirumagal Thiyagarajan, Duane D Miller, Dave Bridges, Ramesh Narayanan
Non-alcoholic steatohepatitis (NASH) affects 8-10 million people in the US and up to 75% of obese individuals. Despite this, there are no approved oral therapeutics to treat NASH and therefore the need for novel approaches exists. The estrogen receptor β (ER-β)-selective agonist, β-LGND2, inhibits body weight and white adipose tissue, and increases metabolism, resulting in higher energy expenditure and thermogenesis. Due to favorable effects of β-LGND2 on obesity, we hypothesized that β-LGND2 will prevent NASH directly by reducing lipid accumulation in the liver or indirectly by favorably changing body composition...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28092181/impaired-redox-environment-modulates-cardiogenic-and-ion-channel-gene-expression-in-cardiac-resident-and-non-resident-mesenchymal-stem-cells
#3
Baskar Subramani, Sellamuthu Subbannagounder, Chithra Ramanathanpullai, Sekar Palanivel, Rajesh Ramasamy
Redox homeostasis plays a crucial role in the regulation of self-renewal and differentiation of stem cells. However, the behavioral actions of mesenchymal stem cells in redox imbalance state remain elusive. In the present study, the effect of redox imbalance that was induced by either hydrogen peroxide (H2O2) or ascorbic acid on human cardiac-resident (hC-MSCs) and non-resident (umbilical cord) mesenchymal stem cells (hUC-MSCs) was evaluated. Both cells were sensitive and responsive when exposed to either H2O2 or ascorbic acid at a concentration of 400 µmol/L...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28058861/downregulation-of-transgelin-blocks-interleukin-8-utilization-and-suppresses-vasculogenic-mimicry-in-breast-cancer-cells
#4
Anastasia R Aikins, MiJung Kim, Bernardo Raymundo, Chan-Wha Kim
Vasculogenic mimicry (VM) is a non-classical mechanism recently described in many tumors, whereby cancer cells, rather than endothelial cells, form blood vessels. Transgelin is an actin-binding protein that has been implicated in multiple stages of cancer development. In this study, we investigated the role of transgelin in VM and assessed its effect on the expression of endothelial and angiogenesis-related genes during VM in MDA-MB-231 breast cancer cells. We confirmed the ability of MDA-MB-231 cells to undergo VM through a tube formation assay...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28056555/a-prospective-clinical-trial-to-compare-the-performance-of-dried-blood-spots-prenatal-screening-for-down-s-syndrome-with-conventional-non-invasive-testing-technology
#5
Huiying Hu, Yulin Jiang, Minghui Zhang, Shanying Liu, Na Hao, Jing Zhou, Juntao Liu, Xiaojin Zhang, Liangkun Ma
To evaluate, side by side, the efficiency of dried blood spots (DBSs) against serum screening for Down's syndrome, and then, to construct a two-tier strategy by topping up the fetal cell-free DNA (cfDNA) secondary screening over the high-risk women marked by the primary blood testing to build a practical screening tactic to identify fetal Down's syndrome. One thousand eight hundred and thirty-seven low-risk Chinese women, with singleton pregnancy, were enrolled for the study. Alpha-fetoprotein and free beta human chorionic gonadotropin were measured for the serum as well as for the parallel DBS samples...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28056554/autophagy-protects-gastric-mucosal-epithelial-cells-from-ethanol-induced-oxidative-damage-via-mtor-signaling-pathway
#6
Weilong Chang, Jie Bai, Shaobo Tian, Muyuan Ma, Wei Li, Yuping Yin, Rui Deng, Jinyuan Cui, Jinjin Li, Guobin Wang, Peng Zhang, Kaixiong Tao
Alcohol abuse is an important cause of gastric mucosal epithelial cell injury and gastric ulcers. A number of studies have demonstrated that autophagy, an evolutionarily conserved cellular mechanism, has a protective effect on cell survival. However, it is not known whether autophagy can protect gastric mucosal epithelial cells against the toxic effects of ethanol. In the present study, gastric mucosal epithelial cells (GES-1 cells) and Wistar rats were treated with ethanol to detect the adaptive response of autophagy...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28056553/quercetin-and-the-ocular-surface-what-we-know-and-where-we-are-going
#7
Tina B McKay, Dimitrios Karamichos
Flavonoids are a class of plant and fungus secondary metabolites that serve functional roles in protecting against UV-induced oxidative stress, mediating auxin signaling, and promoting microbial defense. Flavonoids are extremely abundant in nature where their potent antioxidant capacity and very low toxicity makes them highly attractive as potential therapeutic agents. In terms of clinical applications, neither the Food and Drug Administration (FDA) nor the European Food Safety Authority (EFSA) has approved any health claims or drugs related to the use of flavonoids for therapeutic purposes...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28056552/soy-protein-isolate-inhibits-hepatic-tumor-promotion-in-mice-fed-a-high-fat-liquid-diet
#8
Kelly E Mercer, Casey F Pulliam, Kim B Pedersen, Leah Hennings, Martin Jj Ronis
Alcoholic and nonalcoholic fatty liver diseases are risk factors for development of hepatocellular carcinoma, but the underlying mechanisms are poorly understood. On the other hand, ingestion of soy-containing diets may oppose the development of certain cancers. We previously reported that replacing casein with a soy protein isolate reduced tumor promotion in the livers of mice with alcoholic liver disease after feeding a high fat ethanol liquid diet following initiation with diethylnitrosamine. Feeding soy protein isolate inhibited processes that may contribute to tumor promotion including inflammation, sphingolipid signaling, and Wnt/β-catenin signaling...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28056551/hepatitis-b-x-interacting-protein-promotes-cisplatin-resistance-and-regulates-cd147-via-sp1-in-ovarian-cancer
#9
Wei Zou, Xiangdong Ma, Hong Yang, Wei Hua, Biliang Chen, Guoqing Cai
Ovarian cancer is the highest mortality rate of all female reproductive malignancies. Drug resistance is a major cause of treatment failure in malignant tumors. Hepatitis B X-interacting protein acts as an oncoprotein, regulates cell proliferation, and migration in breast cancer. We aimed to investigate the effects and mechanisms of hepatitis B X-interacting protein on resistance to cisplatin in human ovarian cancer cell lines. The mRNA and protein levels of hepatitis B X-interacting protein were detected using RT-PCR and Western blotting in cisplatin-resistant and cisplatin-sensitive tissues, cisplatin-resistant cell lines A2780/CP and SKOV3/CP, and cisplatin-sensitive cell lines A2780 and SKOV3...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28056550/co-inhalation-of-roflumilast-rather-than-formoterol-with-fluticasone-more-effectively-improves-asthma-in-asthmatic-mice
#10
Hussam A Murad, Hamed S Habib, Misbahuddin M Rafeeq, Mansour I Sulaiman, Amer S Abdulrahman, Mohamad Nidal Khabaz
Roflumilast is approved as an add-on therapy for chronic obstructive pulmonary disease. The inflammation in chronic obstructive pulmonary disease is mainly neutrophilic, while in asthma it is mainly eosinophilic, studies addressing role of roflumilast in eosinophilic inflammation are recommended. Also in severe asthma, the dominant inflammatory cells are neutrophils. Thus, roflumilast has a potential off-label use in the treatment of asthma. This study was designed to evaluate the effects of co-inhalation of roflumilast and fluticasone compared to that of formoterol and fluticasone in ovalbumin-sensitized and-challenged BALB/c mice...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28056549/pegylated-long-circulating-liposomes-deliver-homoharringtonine-to-suppress-multiple-myeloma-cancer-stem-cells
#11
Miao Li, Fangfang Shi, Xiong Fei, Songyan Wu, Di Wu, Meng Pan, Shouhua Luo, Ning Gu, Jun Dou
The goal of this investigation was to evaluate the inhibiting effect of high proportion polyethyleneglycol of long-circulating homoharringtonine liposomes on RPMI8226 multiple myeloma cancer stem cells. The CD138(-)CD34(-) multiple myeloma cancer stem cells isolated from RPMI8226 cell line using magnetic activated cell sorting system were, respectively, incubated with the optimized formulation of polyethyleneglycol of long-circulating homoharringtonine liposomes and the homoharringtonine in vitro, and the multiple myeloma cancer stem cell proliferation, colony formation, and cell cycle were analyzed...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28056548/l-carnitine-contributes-to-enhancement-of-neurogenesis-from-mesenchymal-stem-cells-through-wnt-%C3%AE-catenin-and-pka-pathway
#12
Ezzatollah Fathi, Raheleh Farahzadi, Hojjatollah N Charoudeh
The identification of factors capable of enhancing neurogenesis has great potential for cellular therapies in neurodegenerative diseases. Multiple studies have shown the neuroprotective effects of L-carnitine (LC). This study determined whether neuronal differentiation of rat adipose tissue-derived mesenchymal stem cells (ADSCs) can be activated by LC. In this study, protein kinase A (PKA) and Wnt/β-catenin pathways were detected to show if this activation was due to these pathways. The expression of LC-induced neurogenesis markers in ADSCs was characterized using real-time PCR...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28056547/analysis-of-hypoxia-induced-noncoding-rnas-reveals-metastasis-associated-lung-adenocarcinoma-transcript-1-as-an-important-regulator-of-vascular-smooth-muscle-cell-proliferation
#13
Matthias Brock, Claudio Schuoler, Caroline Leuenberger, Carlo Bühlmann, Thomas J Haider, Johannes Vogel, Silvia Ulrich, Max Gassmann, Malcolm Kohler, Lars C Huber
Vascular remodeling, a pathogenic hallmark in pulmonary hypertension, is mainly driven by a dysbalance between proliferation and apoptosis of human pulmonary artery smooth muscle cells. It has previously been shown that microRNAs are involved in the pathogenesis of pulmonary hypertension. However, the role of long noncoding RNAs has not been evaluated. long noncoding RNA expression was quantified in human pulmonary artery smooth muscle cells using PCR arrays and quantitative PCR. Knockdown of genes was performed by transfection of siRNA or GapmeR...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28056546/urinary-microrna-30c-5p-and-microrna-192-5p-as-potential-biomarkers-of-ischemia-reperfusion-induced-kidney-injury
#14
Yan-Fang Zou, Dan Wen, Qian Zhao, Ping-Yan Shen, Hao Shi, Qiang Zhao, Yong-Xi Chen, Wen Zhang
Early detection of acute kidney injury is difficult due to lack of known biomarkers; previous studies have tried to identify new biomarkers for detecting acute kidney injury at an early stage. MicroRNA, a 21-23 nucleotide noncoding RNA molecule, has emerged as a desirable marker in the diagnosis and prognosis of various diseases. This study aims to identify the expression profile of microRNA in ischemia-reperfusion-induced kidney injury and determine the possibility of using the candidate microRNA as biomarker for the detection of I/R-induced kidney injury...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28056545/histone-deacetylase-high-mobility-group-box-1-pathway-targeted-by-hypaconitine-suppresses-the-apoptosis-of-endothelial-cells
#15
Ye Bai, Shaohui Du, Fei Li, Fengyuan Huang, Rudong Deng, Jianhong Zhou, Dongfeng Chen
Hypaconitine is an active component of Aconitum carmichaelii Debx, a Chinese medicinal herb for the treatment of cardiovascular diseases, but the mechanism underlying its effect remains elusive. In this study, we found that hypaconitine, rather than aconitum alkaloids in A. carmichaelii (e.g. aconitine, mesaconitine and benzoylaconitine), prevented endothelial cells from damage due to oxidized low-density lipoprotein (oxLDL) challenge. Cleaved caspase 3 expression in endothelial cells was up-regulated by oxLDL and markedly attenuated by hypaconitine, suggesting that hypaconitine inhibited the oxLDL-induced cell apoptosis...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27932592/the-role-of-adipose-tissue-in-cancer-associated-cachexia
#16
Janina A Vaitkus, Francesco S Celi
Adipose tissue (fat) is a heterogeneous organ, both in function and histology, distributed throughout the body. White adipose tissue, responsible for energy storage and more recently found to have endocrine and inflammation-modulatory activities, was historically thought to be the only type of fat present in adult humans. The recent demonstration of functional brown adipose tissue in adults, which is highly metabolic, shifted this paradigm. Additionally, recent studies demonstrate the ability of white adipose tissue to be induced toward the brown adipose phenotype - "beige" or "brite" adipose tissue - in a process referred to as "browning...
December 8, 2016: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27909015/diabetic-human-adipose-tissue-derived-mesenchymal-stem-cells-fail-to-differentiate-in-functional-adipocytes
#17
Ignazio Barbagallo, Giovanni Li Volti, Fabio Galvano, Guido Tettamanti, Francesca R Pluchinotta, Sonia Bergante, Luca Vanella
Adipose tissue dysfunction represents a hallmark of diabetic patients and is a consequence of the altered homeostasis of this tissue. Mesenchymal stem cells (MSCs) and their differentiation into adipocytes contribute significantly in maintaining the mass and function of adult adipose tissue. The aim of this study was to evaluate the differentiation of MSCs from patients suffering type 2 diabetes (dASC) and how such process results in hyperplasia or rather a stop of adipocyte turnover resulting in hypertrophy of mature adipocytes...
November 30, 2016: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27903836/sericin-ameliorated-dysmorphic-mitochondria-in-high-cholesterol-diet-streptozotocin-rat-by-antioxidative-property
#18
Sumate Ampawong, Duangnate Isarangkul, Pornanong Aramwit
Sericin has been implicated in lower cholesterolemic effect due to its properties with several mechanisms. Mitochondria are one of the most important targets to be affected in high blood cholesterol and glucose conditions. The protective role of sericin on mitochondria remains doubtful. To examine this role, electron microscopic, histopathologic, immunohistochemical, and biochemical studies were performed in a high-cholesterol diet/streptozotocin rat model. The results demonstrated that sericin reduced blood cholesterol without hypoglycemic effect...
November 29, 2016: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27903835/identification-of-microrna-signature-and-potential-pathway-targets-in-prostate-cancer
#19
Ahmed A Moustafa, Mohammed Ziada, Abubaker Elshaikh, Amrita Datta, Hogyoung Kim, Krzysztof Moroz, Sudesh Srivastav, Raju Thomas, Jonathan L Silberstein, Krishnarao Moparty, Fatma Elzahraa H Salem, Ola H El-Habit, Asim B Abdel-Mageed
Prostate cancer (PC) is the most common and the second leading cause of cancer-related death among American men. Early diagnosis is a prerequisite to improving therapeutic benefits. However, the current clinical biomarkers for PC do not reliably decipher indolent PC from other urogenital disorders. Thus, effective clinical intervention necessitates development of new biomarkers for early detection of PC. The present study aimed to identify the miRNA signature in organ-confined (Gleason Score 6) prostate tumors...
November 29, 2016: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27903834/saliva-diagnostics-current-views-and-directions
#20
Karolina Elżbieta Kaczor-Urbanowicz, Carmen Martin Carreras-Presas, Katri Aro, Michael Tu, Franklin Garcia-Godoy, David Tw Wong
In this review, we provide an update on the current and future applications of saliva for diagnostic purposes. There are many advantages of using saliva as a biofluid. Its collection is fast, easy, inexpensive, and non-invasive. In addition, saliva, as a "mirror of the body," can reflect the physiological and pathological state of the body. Therefore, it serves as a diagnostic and monitoring tool in many fields of science such as medicine, dentistry, and pharmacotherapy. Introduced in 2008, the term "Salivaomics" aimed to highlight the rapid development of knowledge about various "omics" constituents of saliva, including: proteome, transcriptome, micro-RNA, metabolome, and microbiome...
November 29, 2016: Experimental Biology and Medicine
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