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https://www.readbyqxmd.com/read/27931654/the-response-of-the-microcirculation-to-mechanical-support-of-the-heart-in-critical-illness
#1
REVIEW
Sakir Akin, Atila Kara, Corstiaan A den Uil, Can Ince
Critical illness associated with cardiac pump failure results in reduced tissue perfusion in all organs and occurs in various conditions such as sepsis, cardiogenic shock, and heart failure. Mechanical circulatory support (MCS) devices can be used to maintain organ perfusion in patients with cardiogenic shock and decompensated chronic heart failure. However, correction of global hemodynamic parameters by MCS does not always cause a parallel improvement in microcirculatory perfusion and oxygenation of the organ systems, a condition referred to as a loss of hemodynamic coherence between macro- and microcirculation (MC)...
December 2016: Best Practice & Research. Clinical Anaesthesiology
https://www.readbyqxmd.com/read/27928119/hypolipidemic-effect-of-the-autoclaved-extract-prepared-from-pea-pisum-sativum-l-pods-in-vivo-and-in-vitro
#2
Kae Inagaki, Yuuki Nishimura, Emiko Iwata, Sachinobu Manabe, Masahiro Goto, Yoshio Ogura, Hisako Hotta
By autoclaving, we obtained a polyphenol and dietary fiber from pea (Pisum sativum L.) pods in parallel without acid or alkali treatment or organic solvent extraction. Rats fed a high-sucrose (HS) diet containing 3% autoclaved extract (AE) for 4 wk exhibited significantly lower serum triglyceride and total cholesterol levels than rats fed a HS diet. AE and soluble dietary fiber (SDF) from AE exhibited pancreatic lipase inhibitory activity at 13.3 mg/mL in vitro. AE and insoluble dietary fiber (IDF) from AE adsorbed cholesterol...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27924617/cxcl12-sdf-1-dependent-retinal-migration-of-endogenous-bone-marrow-derived-stem-cells-improves-visual-function-after-pharmacologically-induced-retinal-degeneration
#3
Volker Enzmann, Stéphanie Lecaudé, Anna Kruschinski, Axel Vater
Mobilized bone marrow-derived stem cells (BMSC) have been discussed as an alternative strategy for endogenous repair. Thereby, different approaches for BMSC mobilization have been pursued. Herein, the role of a newly discovered oligonucleotide for retinal homing and regeneration capability of BMSCs was investigated in the sodium iodate (NaIO3) model of retinal degeneration. Mobilization was achieved in GFP-chimera with NOX-A12, a CXC-motif chemokine ligand 12 (CXCL12)/stromal cell-derived factor 1 (SDF-1)-neutralizing L-aptamer...
December 6, 2016: Stem Cell Reviews
https://www.readbyqxmd.com/read/27920522/incorporation-of-heparin-binding-proteins-into-preformed-dextran-sulfate-chitosan-nanoparticles
#4
Paula Zaman, Julia Wang, Adam Blau, Weiping Wang, Tina Li, Daniel S Kohane, Joseph Loscalzo, Ying-Yi Zhang
Incorporation of proteins into dextran sulfate (DS)-chitosan (CS) nanoparticles (DSCS NPs) is commonly performed using entrapment procedures, in which protein molecules are mixed with DS and CS until particle formation occurs. As DS is an analog of heparin, the authors examined whether proteins could be directly incorporated into preformed DSCS NPs through a heparin binding domain-mediated interaction. The authors formulated negatively-charged DSCS NPs, and quantified the amount of charged DS in the outer shell of the particles...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27918077/type-2-diabetes-inhibited-human-mesenchymal-stem-cells-angiogenic-response-by-over-activity-of-the-autophagic-pathway
#5
Aysa Rezabakhsh, Omid Cheraghi, Alireza Nourazarian, Mehdi Hassanpour, Masoumeh Kazemi, Shahrooz Ghaderi, Esmaeil Faraji, Reza Rahbarghazi, Çığır Biray Avci, Bakiye Goker Bagca, Alireza Garjani
The current study aimed to address the impact of serum from type 2 diabetes patients on the angiogenic properties of human bone marrow mesenchymal stem cells and its relationship to autophagy signaling. Human primary stem cells were enriched and incubated with serum from diabetic and normal subjects for 7 days. Compared to data from the control group, diabetic serum was found to induce a higher cellular death rate (p < 0.001) and apoptotic changes (p < 0.01). We also showed that diabetic condition significantly abolished angiogenesis tube formation on Matrigel substrate, decreased cell chemotaxis (p < 0...
December 5, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/27914035/mobilization-of-peripheral-blood-stem-cells-and-changes-in-the-concentration-of-plasma-factors-influencing-their-movement-in-patients-with-panic-disorder
#6
Marcin Jabłoński, Jolanta Kucharska Mazur, Maciej Tarnowski, Barbara Dołęgowska, Daniel Pędziwiatr, Ewa Kubiś, Marta Budkowska, Daria Sałata, Justyna Pełka Wysiecka, Arkadiusz Kazimierczak, Artur Reginia, Mariusz Z Ratajczak, Jerzy Samochowiec
In this paper we examined whether stem cells and factors responsible for their movement may serve as new biological markers of anxiety disorders. The study was carried out on a group of 30 patients diagnosed with panic disorder (examined before and after treatment), compared to 30 healthy individuals forming the control group. We examined the number of circulating HSCs (hematopoetic stem cells) (Lin-/CD45 +/CD34 +) and HSCs (Lin-/CD45 +/AC133 +), the number of circulating VSELs (very small embryonic-like stem cells) (Lin-/CD45-/CD34 +) and VSELs (Lin-/CD45-/AC133 +), as well as the concentration of complement components: C3a, C5a and C5b-9, SDF-1 (stromal derived factor) and S1P (sphingosine-1-phosphate)...
December 2, 2016: Stem Cell Reviews
https://www.readbyqxmd.com/read/27910891/elevated-cerebral-spinal-fluid-biomarkers-in-children-with-mucopolysaccharidosis-i-h
#7
Gerald V Raymond, Marzia Pasquali, Lynda E Polgreen, Patricia I Dickson, Weston P Miller, Paul J Orchard, Troy C Lund
Mucopolysaccharidosis (MPS) type-IH is a lysosomal storage disease that results from mutations in the IDUA gene causing the accumulation of glycosaminoglycans (GAGs). Historically, children with the severe phenotype, MPS-IH (Hurler syndrome) develop progressive neurodegeneration with death in the first decade due to cardio-pulmonary complications. New data suggest that inflammation may play a role in MPS pathophysiology. To date there is almost no information on the pathophysiologic changes within the cerebral spinal fluid (CSF) of these patients...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27908637/response-of-three-cyprinid-fish-species-to-the-scavenger-deterrent-factor-produced-by-the-mutualistic-bacteria-associated-with-entomopathogenic-nematodes
#8
Ramalingam Karthik Raja, Dilipkumar Aiswarya, Baris Gulcu, Manickam Raja, Pachiappan Perumal, Sivaperumal Sivaramakrishnan, Harry K Kaya, Selcuk Hazir
The symbiotic bacteria, Photorhabdus and Xenorhabdus associated with entomopathogenic nematodes (EPNs) in the genera Heterorhabditis and Steinernema, respectively, produce a compound(s) called the Scavenging Deterrent Factor (SDF). SDF deters a number of terrestrial insect scavengers and predators and one bird species from feeding on host insects killed by the nematode-bacterium complex but has not been tested against aquatic vertebrates. Moreover, the Heterorhabditis-Photorhabdus association is believed to have evolved in an aquatic environment...
November 29, 2016: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/27904036/differential-regulation-of-lympho-myelopoiesis-by-stromal-cells-in-the-early-and-late-phases-in-balb-c-mice-repeatedly-exposed-to-lipopolysaccharide
#9
Isao Tsuboi, Tomonori Harada, Yoko Hirabayashi, Jun Kanno, Shin Aizawa
Chronic lipopolysaccharide (LPS) exposure to mice reduces the lymphoid compartment and skews the hematopoietic cell compartment toward myeloid-cells, which is considered to be a direct effect of LPS on hematopoietic stem cells. However, the effect of chronic LPS exposure on stromal-cells, which compose the hematopoietic microenvironment, has not been elucidated. Here, we investigated early- and late-phase effects of repeated LPS exposure on stromal-cells. During the early phase, when mice were treated with 5 or 25 µg LPS three times at weekly intervals, the numbers of myeloid-progenitor (colony forming unit-granulocyte macrophage (CFU-GM)) cells and B lymphoid-progenitor (CFU-preB) cells in the bone-marrow (BM) rapidly decreased after each treatment...
2016: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27894110/significant-role-s-of-cxcl12-and-the-sdf-1-3-a-genetic-variant-in-the-pathogenesis-of-multiple-sclerosis
#10
Mojgan Noroozi Karimabad, Soudeh Khanamani Falahati-Pour, Gholamhossein Hassanshahi
Both cellular and molecular components of the immune system are among the substantial factors involved in the pathogenesis of multiple sclerosis (MS). Accumulating evidence confirms that chemokines, as the main members of the immune system, play key roles in the regulation of immune responses. Immune system genetic parameters are believed to influence the onset of immune system-related diseases. Regarding the significant role of the CXCR4/CXCL12 axis in cell differentiation and survival and homing of hematopoietic progenitors to the bone marrow and regulation of neuronal progenitor cell migration in the central nervous system (CNS), genetic factors can cause an increased expression of CXCL12 and induce a vigorous immune response against CNS antigens in MS patients...
November 29, 2016: Neuroimmunomodulation
https://www.readbyqxmd.com/read/27882150/effect-of-stromal-cell-derived-factor-1-on-myocardial-apoptosis-and-cardiac-function-recovery-in-rats-with-acute-myocardial-infarction
#11
Yuanyuan Liu, Songtao Gao, Zheng Wang, Yan Yang, Hong Huo, Xuefeng Tian
The aim of the study was to investigate the effect of stromal cell-derived factor-1 (SDF-1) on myocardial apoptosis and cardiac function recovery in rats with acute myocardial infarction (AMI) and the mechanism of the Toll-like receptor (TLR)-4/nuclear factor-κB (NF-κB) signaling pathway. A total of 64 healthy male F344 rats were randomly divided into the sham operation, model, SDF-1 intervention and SDF-1 antibody groups, with 16 rats in each group. The method of Olivette was used to establish the AMI model by ligation of the left anterior descending artery...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27871297/aqp5-1364a-c-polymorphism-and-the-aqp5-expression-influence-sepsis-survival-and-immune-cell-migration-a-prospective-laboratory-and-patient-study
#12
Katharina Rump, Matthias Unterberg, Lars Bergmann, Agnes Bankfalvi, Anil Menon, Simon Schäfer, André Scherag, Zainab Bazzi, Winfried Siffert, Jürgen Peters, Michael Adamzik
BACKGROUND: The C-allele of the aquaporin (AQP5) -1364A/C polymorphism is associated with decreased AQP5 expression but increased 30-day survival in patients with severe sepsis. AQP5 expression might affect survival via an impact on cell migration. Consequently, we tested the hypothesis that (1) Aqp5 knockout (KO) compared to wild type (WT) mice show an increased survival following lipopolysaccharide (LPS) administration, and that (2) AQP5 expression and the AQP5 -1364A/C polymorphism alters immune cell migration...
November 21, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27871176/in-vivo-angiogenic-capacity-of-stem-cells-from-human-exfoliated-deciduous-teeth-with-human-umbilical-vein-endothelial-cells
#13
Ji-Hye Kim, Gee-Hye Kim, Jae-Won Kim, Hee Jang Pyeon, Jae Cheoun Lee, Gene Lee, Hyun Nam
Dental pulp is a highly vascularized tissue requiring adequate blood supply for successful regeneration. In this study, we investigated the functional role of stem cells from human exfoliated deciduous teeth (SHEDs) as a perivascular source for in vivo formation of vessel-like structures. Primarily isolated SHEDs showed mesenchymal stem cell (MSC)-like characteristics including the expression of surface antigens and in vitro osteogenic and adipogenic differentiation potentials. Moreover, SHEDs were positive for NG2, α-smooth muscle actin (SMA), platelet-derived growth factor receptor beta (PDGFRβ), and CD146 as pericyte markers...
November 30, 2016: Molecules and Cells
https://www.readbyqxmd.com/read/27865962/pharmacologically-active-microcarriers-delivering-bdnf-within-a-hydrogel-novel-strategy-for-human-bone-marrow-derived-stem-cells-neural-neuronal-differentiation-guidance-and-therapeutic-secretome-enhancement
#14
Saikrishna Kandalam, Laurence Sindji, Gaëtan J-R Delcroix, Fabien Violet, Xavier Garric, Emilie M André, Paul C Schiller, Marie-Claire Venier-Julienne, Anne des Rieux, Jérôme Guicheux, Claudia N Montero-Menei
: Stem cells combined with biodegradable injectable scaffolds releasing growth factors hold great promises in regenerative medicine, particularly in the treatment of neurological disorders. We here integrated human marrow-isolated adult multilineage-inducible (MIAMI) stem cells and pharmacologically active microcarriers (PAMs) into an injectable non-toxic silanized-hydroxypropyl methylcellulose (Si-HPMC) hydrogel. The goal is to obtain an injectable non-toxic cell and growth factor delivery device...
November 16, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27865213/phenotypic-correction-of-fanconi-anemia-cells-in-the-murine-bone-marrow-after-carrier-cell-mediated-delivery-of-lentiviral-vector
#15
Santhosh Chakkaramakkil Verghese, Natalya A Goloviznina, Peter Kurre
Fanconi anemia (FA) is an autosomal-recessive disorder associated with hematopoietic failure and it is a candidate for hematopoietic stem cell (HSC)-directed gene therapy. However, the characteristically reduced HSC numbers found in FA patients, their ineffective mobilization from the marrow, and re-oxygenation damage during ex vivo manipulation have precluded clinical success using conventional in vitro approaches. We previously demonstrated that lentiviral vector (LV) particles reversibly attach to the cell surface where they gain protection from serum complement neutralization...
November 19, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27865159/dietary-glutamine-supplementation-enhances-endothelial-progenitor-cell-mobilization-in-streptozotocin-induced-diabetic-mice-subjected-to-limb-ischemia
#16
Shiau-Tsz Su, Chiu-Li Yeh, Yu-Chen Hou, Man-Hui Pai, Sung-Ling Yeh
Diabetes is a metabolic disorder with increased risk of vascular diseases. Tissue ischemia may occur with diabetic vascular complications. Bone marrow-derived endothelial progenitor cells (EPCs) constitute a reparative response to ischemic injury. This study investigated the effects of oral glutamine (GLN) supplementation on circulating EPC mobilization and expression of tissue EPC-releasing markers in diabetic mice subjected to limb ischemia. Diabetes was induced by a daily intraperitoneal injection of streptozotocin for 5 days...
October 29, 2016: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/27856608/reversal-of-bone-marrow-mobilopathy-and-enhanced-vascular-repair-by-angiotensin-1-7-in-diabetes
#17
Goutham Vasam, Shrinidh Joshi, Sean E Thatcher, Stephen H Bartelmez, Lisa A Cassis, Yagna Pr Jarajapu
Ang-(1-7)/MasR pathway activates vascular repair-relevant functions of bone marrow progenitor cells. We tested the effects of Ang-(1-7) on mobilization and vasoreparative functions of progenitor cells that are impaired in diabetes. Study was carried out in streptozotocin-induced diabetic or db/db mice. Diabetes resulted in decreased number of Lineage(-) Sca-1(+) c-Kit(+) (LSK) cells in the circulation, which was normalized by Ang-(1-7). Diabetes-induced depletion of LSK cells in the bone marrow was reversed by Ang-(1-7)...
November 17, 2016: Diabetes
https://www.readbyqxmd.com/read/27853964/brain-pathway-differences-between-parkinson-s-disease-patients-with-and-without-rem-sleep-behavior-disorder
#18
Mina Ansari, Farzaneh Rahmani, Mahsa Dolatshahi, Atefe Pooyan, Mohammad Hadi Aarabi
PURPOSE: REM (rapid eye movement) sleep behavior disorder (RBD) is characterized by increased muscle tone and violent limb movements and is a usual symptom of the early stages of Parkinson's disease (PD). PD patients with RBD represent faster motor and cognitive dysfunction progression. However, there are limited studies on possible structural brain changes underpinning this disorder. METHODS: Diffusion magnetic resonance imaging (DMRI) was used to assess whether microstructural abnormalities in the brain of 23 RBD positive PD are detectable compared to 31 RBD negative PD...
November 16, 2016: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/27847151/proliferation-differentiation-and-migration-of-sca1-cd31-cardiac-side-population-cells-in-vitro-and-in-vivo
#19
Xue-Zhe Wang, Rui-Lan Gao, Ping Sun, Shengyi Liu, Yang Xu, Damian Ze-Guang Liang, Li-Ming Yin, William D Phillips, Simon X Liang
BACKGROUND: Side-population (SP) cells, identified by their capacity to efflux Hoechst dye, are highly enriched for stem/progenitor cell activity. They are found in many mammalian tissues, including mouse heart. Studies suggest that cardiac SP (CSP) cells can be divided into SCA1(+)/CD31(-), SCA1(+)/CD31(+) and SCA1(-)/CD31(-) CSP subpopulations. SCA1(+)/CD31(-) were shown to be cardiac and endothelial stem/progenitors while SCA1(+)/CD31(+) CSP cells are endothelial progenitors. SCA1(-)/CD31(-) CSP cells remain to be fully characterized...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27842513/clinical-characterization-of-two-severe-cases-of-hemorrhagic-fever-with-renal-syndrome-hfrs-caused-by-hantaviruses-puumala-and-dobrava-belgrade-genotype-sochi
#20
Ellen Krautkrämer, Christian Nusshag, Alexandra Baumann, Julia Schäfer, Jörg Hofmann, Paul Schnitzler, Boris Klempa, Peter T Witkowski, Detlev H Krüger, Martin Zeier
BACKGROUND: Hantavirus disease belongs to the emerging infections. The clinical picture and severity of infections differ between hantavirus species and may even vary between hantavirus genotypes. The mechanisms that lead to the broad variance of severity in infected patients are not completely understood. Host- and virus-specific factors are considered. CASE PRESENTATION: We analyzed severe cases of hantavirus disease in two young women. The first case was caused by Puumala virus (PUUV) infection in Germany; the second case describes the infection with Dobrava-Belgrade virus (DOBV) in Russia...
November 14, 2016: BMC Infectious Diseases
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