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https://www.readbyqxmd.com/read/29664565/memory-cd8-t-cell-inflation-vs-tissue-resident-memory-t-cells-same-patrollers-same-controllers
#1
REVIEW
Suzanne P M Welten, Ioana Sandu, Nicolas S Baumann, Annette Oxenius
The induction of long-lived populations of memory T cells residing in peripheral tissues is of considerable interest for T cell-based vaccines, as they can execute immediate effector functions and thus provide protection in case of pathogen encounter at mucosal and barrier sites. Cytomegalovirus (CMV)-based vaccines support the induction and accumulation of a large population of effector memory CD8 T cells in peripheral tissues, in a process called memory inflation. Tissue-resident memory (TRM ) T cells, induced by various infections and vaccination regimens, constitute another subset of memory cells that take long-term residence in peripheral tissues...
May 2018: Immunological Reviews
https://www.readbyqxmd.com/read/29611831/anesthetic-management-for-concomitant-correction-of-congenital-cardiac-defects-and-long-o-ring-tracheal-stenosis-a-role-for-heliox-report-of-2-cases
#2
Sylvain Mauron, David Longchamp, Marie-Hélène Perez, René Prêtre, Kishore Sandu, Stefano Di Bernardo, Yann Boegli, Mirko Dolci
We present 2 infants with the rare association of long congenital tracheal stenosis, ventricular septal defect, and pulmonary hypertension. We describe a step-by-step assessment of the patients and the necessary procedures for a successful concomitant repair of both cardiac and tracheal malformations. The use of a helium-oxygen mixture (heliox) for the induction of anesthesia and pre-cardiopulmonary bypass is discussed.
March 15, 2018: A&A practice
https://www.readbyqxmd.com/read/29600585/endoscopic-treatment-of-post-supraglottoplasty-stenosis
#3
K Sandu, M H Perez, D Longchamp, M Chollet, F Gorostidi
No abstract text is available yet for this article.
March 30, 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29542410/dabco-catalyzed-green-and-efficient-synthesis-of-2-amino-4h-pyrans-and-their-biological-evaluation-as-antimicrobial-and-anticancer-agents
#4
Amit Shivajirao Waghmare, Shivaji Sandu Pandit, Dayanand M Suryawanshi
AIM AND OBJECTIVE: 4H-pyran is one of the most well-known groups of synthetic heterocyclic compounds and it has attracted considerable attention of chemists in recent years because of their extensive range of biological and pharmaceutical activities. These compounds are used as antibacterial, anticancer agents, anti-coagulants, spasmolytics and anti-anaphylactic. 4H-pyran derivatives are utilized in cosmetics, pigments, biodegradable agrochemicals as well as photoactive materials. In addition, 4H-pyrans are also helpful as cognitive enhancers for the treatment of neuro degenerative diseases, including Alzheimer's disease, as well as for the treatment of schizophrenia and myoclonus...
March 14, 2018: Combinatorial Chemistry & High Throughput Screening
https://www.readbyqxmd.com/read/29538724/learning-from-games-stakeholders-experiences-involved-in-local-health-policy
#5
H P E M Spitters, L A M van de Goor, C Juel Lau, P Sandu, L Eklund Karlsson, J Jansen, J A M van Oers
Since public health problems are complex and the related policies need to address a wide range of sectors, cross-sectoral collaboration is beneficial. One intervention focusing on stimulating collaboration is a 'policy game'. The focus on specific problems facilitates relationships between the stakeholders and stimulates cross-sectoral policymaking. The present study explores stakeholders' learning experiences with respect to the collaboration process in public health policymaking. This was achieved via their game participation, carried out in real-life stakeholder networks in the Netherlands, Denmark and Romania...
March 1, 2018: Journal of Public Health
https://www.readbyqxmd.com/read/29503614/increased-degradation-rates-in-the-components-of-the-mitochondrial-oxidative-phosphorylation-chain-in-the-cerebellum-of-old-mice
#6
Aurel Popa-Wagner, Raluca E Sandu, Coman Cristin, Adriana Uzoni, Kevin A Welle, Jennifer R Hryhorenko, Sina Ghaemmaghami
Brain structures differ in the magnitude of age-related neuron loss with the cerebellum being more affected. An underlying cause could be an age-related decline in mitochondrial bioenergetics. Successful aging of mitochondria reflects a balanced turnover of proteins involved in mitochondrial biogenesis and mitophagy. Thus, an imbalance in mitochondrial turnover can contribute to the diminution of cellular function seen during aging. Mitochondrial biogenesis and mitophagy are mediated by a set of proteins including MFN1, MFN2, OPA1, DRP1, FIS1 as well as DMN1l and DNM1, all of which are required for mitochondrial fission...
2018: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/29417873/simple-discrimination-of-sub-cycling-cells-by-propidium-iodide-flow-cytometric-assay-in-jurkat-cell-samples-with-extensive-dna-fragmentation
#7
Ramona Madalina Babes, Ioana Teodora Tofolean, Roxana Gabriela Sandu, Oana Elena Baran, Vlad Cosoreanu, Maria Teodora Ilie, Alexandru Ionut Duta, Maria Catalina Ceausescu, Paul Mihai Ciucur, Simona Costache, Constanta Ganea, Irina Baran
Human leukemia Jurkat T cells were analyzed for apoptosis and cell cycle by flow cytometry, using the Annexin V/propidium iodide (PI) standard assay, and a simple PI staining in Triton X-100/digitonin-enriched PI/RNase buffer, respectively. Cells treated with doxorubicin or menadione displayed a very strong correlation between the apoptotic cell fraction measured by the Annexin V/PI assay, and the weight of a secondary cell population that emerged on the forward scatter (FS)/PI plot, as well as on the side scatter (SS)/PI and FL1/PI plots generated from parallel cell cycle recordings...
April 10, 2018: Cell Cycle
https://www.readbyqxmd.com/read/29370078/present-status-and-future-challenges-of-new-therapeutic-targets-in-preclinical-models-of-stroke-in-aged-animals-with-without-comorbidities
#8
REVIEW
Aurel Popa-Wagner, Daniela-Gabriela Glavan, Andrei Olaru, Denissa-Greta Olaru, Otilia Margaritescu, Oana Tica, Roxana Surugiu, Raluca Elena Sandu
The aging process, comorbidities, and age-associated diseases are closely dependent on each other. Cerebral ischemia impacts a wide range of systems in an age-dependent manner. However, the aging process has many facets which are influenced by the genetic background and epigenetic or environmental factors, which can explain why some people age differently than others. Therefore, there is an urgent need to identify age-related changes in body functions or structures that increase the risk for stroke and which are associated with a poor outcome...
January 25, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29319013/intraoperative-cardiovascular-response-of-natural-orifice-transluminal-endoscopic-surgery-versus-laparoscopy-a-comparative-animal-study
#9
Stefan Patrascu, Catalin Andu Copaescu, Valeriu Surlin, Sandu Ramboiu, Alice Nicoleta Dragoescu, Sorin Stanilescu, Dan Cristian, Bogdan Silviu Ungureanu, Daniela Elena Burtea, Ana Maria Patrascu, Florin Turcu, Adrian Saftoiu
BACKGROUND: Natural orifice transluminal endoscopic surgery (NOTES) emerged as a new alternative method in minimally invasive techniques. Although a very small number of studies have compared the physiologic response in NOTES to laparoscopy, the results remain controversial. AIM: This experimental animal study aims to evaluate the intraoperative cardiovascular and respiratory effects of pure transluminal natural orifice surgery and conventional laparoscopy. MATERIALS AND METHODS: Twenty female pigs (Sus scrofa domesticus) equally divided into two study groups were assigned to either pure natural orifice transluminal endoscopic techniques (Group 1) or conventional laparoscopic surgery (Group 2) and monitored intraoperatively in terms of heart rate (HR), systolic blood pressure (SBP) and O2saturation (SpO2) for 1 h...
January 10, 2018: Journal of Minimal Access Surgery
https://www.readbyqxmd.com/read/29286319/cellular-and-molecular-mechanisms-underlying-non-pharmaceutical-ischemic-stroke-therapy-in-aged-subjects
#10
REVIEW
Raluca Elena Sandu, Danut Dumbrava, Roxana Surugiu, Daniela-Gabriela Glavan, Andrei Gresita, Eugen Bogdan Petcu
The incidence of ischemic stroke in humans increases exponentially above 70 years both in men and women. Comorbidities like diabetes, arterial hypertension or co-morbidity factors such as hypercholesterolemia, obesity and body fat distribution as well as fat-rich diet and physical inactivity are common in elderly persons and are associated with higher risk of stroke, increased mortality and disability. Obesity could represent a state of chronic inflammation that can be prevented to some extent by non-pharmaceutical interventions such as calorie restriction and hypothermia...
December 29, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29258483/developing-a-policy-game-intervention-to-enhance-collaboration-in-public-health-policymaking-in-three-european-countries
#11
H P E M Spitters, J A M van Oers, P Sandu, C J Lau, M Quanjel, D Dulf, R Chereches, L A M van de Goor
BACKGROUND: One of the key elements to enhance the uptake of evidence in public health policies is stimulating cross-sector collaboration. An intervention stimulating collaboration is a policy game. The aim of this study was to describe the design and methods of the development process of the policy game ‘In2Action’ within a real-life setting of public health policymaking networks in the Netherlands, Denmark and Romania. METHODS: The development of the policy game intervention consisted of three phases, pre intervention, designing the game intervention and tailoring the intervention...
December 19, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29163001/implantation-of-3d-constructs-embedded-with-oral-mucosa-derived-cells-induces-functional-recovery-in-rats-with-complete-spinal-cord-transection
#12
Javier Ganz, Erez Shor, Shaowei Guo, Anton Sheinin, Ina Arie, Izhak Michaelevski, Sandu Pitaru, Daniel Offen, Shulamit Levenberg
Spinal cord injury (SCI), involving damaged axons and glial scar tissue, often culminates in irreversible impairments. Achieving substantial recovery following complete spinal cord transection remains an unmet challenge. Here, we report of implantation of an engineered 3D construct embedded with human oral mucosa stem cells (hOMSC) induced to secrete neuroprotective, immunomodulatory, and axonal elongation-associated factors, in a complete spinal cord transection rat model. Rats implanted with induced tissue engineering constructs regained fine motor control, coordination and walking pattern in sharp contrast to the untreated group that remained paralyzed (42 vs...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29106858/congenital-pharyngeal-webs-treatment-of-a-rare-clinical-entity-by-endoscopic-co-2-laser-approach
#13
Grégoire B Morand, Karma Lambercy, Pierre Guilcher, Kishore B Sandu
IMPORTANCE: Oesophageal inlet stenosis can promote dysphagia and aspiration. We report the cases of syndromic children with congenital pharyngeal webs successfully treated with endoscopic CO2 laser. OBSERVATIONS: Pharyngeal webs were excised with CO2 laser (Ultrapulse mode) and resurfaced using mucosal advancement flaps to avoid restenosis and/or formation of secondary synechia. This led to a significant enlargement of the oesophageal inlet, which was documented immediately postoperatively and the clinical improvement of dysphagia and decreased aspiration persisted at distant follow-up...
November 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29106439/increased-diastolic-blood-pressure-is-associated-with-mri-biomarkers-of-dementia-related-brain-pathology-in-normative-ageing
#14
Christopher J McNeil, Phyo Kyaw Myint, Anca-Larisa Sandu, John F Potter, Roger Staff, Lawrence J Whalley, Alison D Murray
Background: hypertension is a risk for brain ageing, but the mechanisms underlying this effect remain unclear. Magnetic resonance imaging (MRI) detected biomarkers of brain ageing include white matter hyperintensities (WMHs), a marker of cerebrovascular disease, and hippocampal volume, a marker of Alzheimer's disease pathology. Objective: to examine relationships between blood pressure (BP) components and brain pathology in older adults. Subjects: two hundred and twenty-seven members of the Aberdeen 1936 Birth Cohort between ages 64 and 68 years...
January 1, 2018: Age and Ageing
https://www.readbyqxmd.com/read/29075983/temporary-tracheal-stenting-using-endovascular-prosthesis-in-the-management-of-severe-refractory-stenosis-following-slide-tracheoplasty
#15
Kishore Sandu, Antoine Reinhard, Karma Lambercy, Rene Pretre, Francois Gorostidi
OBJECTIVES: To evaluate the role of endovascular stents in temporary tracheal stenting and endoscopic treatment strategy for patients with severe refractory tracheal stenosis following slide tracheoplasty. METHODS: Two patients had severe tracheal stenosis after slide tracheoplasty for long segment congenital tracheal stenosis. Both these patients were managed endoscopically and an endovascular prosthesis was used to temporarily stent the trachea. Short and long term results were evaluated clinically and with repeated endoscopies...
January 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29038859/refashioned-lamb-tissue-as-an-animal-model-for-training-complex-techniques-of-laryngotracheal-stenosis-surgery
#16
Lluís Nisa, Pedro Teiga, Gustavo Barreto da Cunha, Biswanath Roy, Riza Onder Gunaydin, Kishore Sandu
Open reconstructive upper airway surgery for laryngotracheal stenosis (LTS), whether for subglottic or tracheal stenosis, constitutes a group of complex approaches. LTS requiring open reconstruction is overall rare and primarily performed at tertiary centres. This poses an obvious challenge for the acquisition and maintenance of surgical skills for this group of complex approaches. In this context, animal models provide a unique opportunity for open reconstructive airway surgery training. Such models ought to take into consideration ethical aspects, be easily available and easy to maintain, and have similar macroscopic anatomical features to the human laryngotracheal frame...
December 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28961383/caloric-restriction-stabilizes-body-weight-and-accelerates-behavioral-recovery-in-aged-rats-after-focal-ischemia
#17
Ovidiu Ciobanu, Raluca Elena Sandu, Adrian Tudor Balseanu, Alexandra Zavaleanu, Andrei Gresita, Eugen Bogdan Petcu, Adriana Uzoni, Aurel Popa-Wagner
Obesity and hyperinsulinemia are risk factors for stroke. We tested the hypothesis that caloric restriction, which reduces the incidence of age-related obesity and metabolic syndrome, may represent an efficient and cost-effective strategy for preventing stroke and its devastating consequences. To this end, we placed aged, obese Sprague-Dawley aged rats on a calorie-restricted diet for 8 weeks prior to the experimental infarction. Stroke in this animal model caused a progressive decrease in weight that reached a minimum at day 6 for the young rats, and at day 10 for the aged, ad libitum-fed rats...
December 2017: Aging Cell
https://www.readbyqxmd.com/read/28921522/extraluminal-biodegradable-splint-to-treat-upper-airway-anterior-malacia-a-preclinical-proof-of-principle
#18
François Gorostidi, Cécile Courbon, Marco Burki, Antoine Reinhard, Kishore Sandu
OBJECTIVE: Upper airway malacia highly complicates the treatment of benign laryngotracheal stenosis, and no ideal option is available to date. We here explore the use of extraluminal biodegradable splints in an animal model of long-segment anterior tracheomalacia (TM). We show the efficacy, as well as the tissue tolerance, of a custom-made biodegradable extraluminal device surgically inserted around the trachea. STUDY DESIGN: Preclinical animal study. METHODS: Anterior TM was induced in rabbits through an anterior neck approach by removing eight consecutive anterior tracheal rings without damaging the underlying mucosa...
February 2018: Laryngoscope
https://www.readbyqxmd.com/read/28910075/mechanochemical-synthesis-of-pedot-pss-hydrogels-for-aqueous-formulation-of-li-ion-battery-electrodes
#19
Georgiana Sandu, Bruno Ernould, Julien Rolland, Nathalie Cheminet, Jérémy Brassinne, Pratik R Das, Yaroslav Filinchuk, Luhua Cheng, Lidiya Komsiyska, Philippe Dubois, Sorin Melinte, Jean-François Gohy, Roberto Lazzaroni, Alexandru Vlad
Water-soluble binders can enable greener and cost-effective Li-ion battery manufacturing by eliminating the standard fluorine-based formulations and associated organic solvents. The issue with water-based dispersions, however, remains the difficulty in stabilizing them, requiring additional processing complexity. Herein, we show that mechanochemical conversion of a regular poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) water-based dispersion produces a hydrogel that meets all the requirements as binder for lithium-ion battery electrode manufacture...
October 11, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28860128/opioid-receptor-activation-impairs-hypoglycemic-counterregulation-in-humans
#20
RANDOMIZED CONTROLLED TRIAL
Michelle Carey, Rebekah Gospin, Akankasha Goyal, Nora Tomuta, Oana Sandu, Armand Mbanya, Eric Lontchi-Yimagou, Raphael Hulkower, Harry Shamoon, Ilan Gabriely, Meredith Hawkins
Although intensive glycemic control improves outcomes in type 1 diabetes mellitus (T1DM), iatrogenic hypoglycemia limits its attainment. Recurrent and/or antecedent hypoglycemia causes blunting of protective counterregulatory responses, known as hypoglycemia-associated autonomic failure (HAAF). To determine whether and how opioid receptor activation induces HAAF in humans, 12 healthy subjects without diabetes (7 men, age 32.3 ± 2.2 years, BMI 25.1 ± 1.0 kg/m2 ) participated in two study protocols in random order over two consecutive days...
November 2017: Diabetes
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