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497 Results Found

  • Article
  • Open Access
4 Citations
5,714 Views
11 Pages

A Novel 3D Helical Microelectrode Array for In Vitro Extracellular Action Potential Recording

  • Negar Geramifard,
  • Jennifer Lawson,
  • Stuart F. Cogan and
  • Bryan James Black

8 October 2022

Recent advances in cell and tissue engineering have enabled long-term three-dimensional (3D) in vitro cultures of human-derived neuronal tissues. Analogous two-dimensional (2D) tissue cultures have been used for decades in combination with substrate...

  • Review
  • Open Access
9 Citations
7,342 Views
30 Pages

25 April 2016

The concepts of transistor recording of electroactive cells are considered, when the response is determined by a current-induced voltage in the electrolyte due to cellular activity. The relationship to traditional transistor recording, with an interf...

  • Article
  • Open Access
5 Citations
2,067 Views
16 Pages

29 December 2021

Deep brain stimulation (DBS) requires a precise localization, which is especially difficult at the hypothalamus, because it is usually performed in anesthetized patients. We aimed to characterize the neurophysiological properties posteromedial hypoth...

  • Article
  • Open Access
6 Citations
3,885 Views
16 Pages

16 August 2021

We present an AC-coupled modular 16-channel analog frontend with 1.774 fJ/c-s∙mm2 energy- and area-product for a multichannel recording of broadband neural signals including local field potentials (LFPs) and extracellular action potentials (EAPs). To...

  • Review
  • Open Access
21 Citations
4,283 Views
17 Pages

Antibiofilm Action of Plant Terpenes in Salmonella Strains: Potential Inhibitors of the Synthesis of Extracellular Polymeric Substances

  • Julian J. Palomares-Navarro,
  • Ariadna T. Bernal-Mercado,
  • Gustavo A. González-Aguilar,
  • Luis A. Ortega-Ramirez,
  • Miguel A. Martínez-Téllez and
  • Jesús F. Ayala-Zavala

26 December 2022

Salmonella can form biofilms that contribute to its resistance in food processing environments. Biofilms are a dense population of cells that adhere to the surface, creating a matrix composed of extracellular polymeric substances (EPS) consisting mai...

  • Review
  • Open Access
8 Citations
6,346 Views
26 Pages

19 February 2024

Systemic lupus erythematosus (SLE) is a multisystemic autoimmune disease that affects nearly 3.41 million people globally, with 90% of the cases affecting women of childbearing age. SLE is a complex disease due to the interplay of various immunologic...

  • Article
  • Open Access
10 Citations
3,347 Views
16 Pages

Neurophysiological Characterization of Thalamic Nuclei in Epileptic Anaesthetized Patients

  • Lorena Vega-Zelaya,
  • Cristina V. Torres,
  • Marta Navas and
  • Jesús Pastor

7 November 2019

Deep brain stimulation (DBS) requires precise localization, which is especially difficult at the thalamus, and even more difficult in anesthetized patients. We aimed to characterize the neurophysiological properties of the ventral intermediate (V.im)...

  • Article
  • Open Access
9 Citations
3,790 Views
14 Pages

Molecular and Cellular Impact of Inflammatory Extracellular Vesicles (EVs) Derived from M1 and M2 Macrophages on Neural Action Potentials

  • Sarah Vakili,
  • Taha Mohseni Ahooyi,
  • Shadan S. Yarandi,
  • Martina Donadoni,
  • Jay Rappaport and
  • Ilker K. Sariyer

Several factors can contribute to neuroinflammatory disorders, such as cytokine and chemokines that are produced and released from peripherally derived immune cells or from locally activated cells such as microglia and perivascular macrophages in the...

  • Article
  • Open Access
2,309 Views
20 Pages

2 September 2024

The changes in cardiomyocyte action potentials are related to variations in intra- and extracellular ion concentrations. Abnormal ion concentrations can lead to irregular action potentials, subsequently affecting wave propagation in myocardial tissue...

  • Feature Paper
  • Article
  • Open Access
10 Citations
12,137 Views
7 Pages

19 January 2020

Magnesium ions have many cellular actions including the suppression of the excitability of neurons; however, the depolarization effect of magnesium ions seems to be contradictory. Thus several hypotheses have aimed to explain this effect. In this stu...

  • Article
  • Open Access
6 Citations
3,703 Views
19 Pages

Action potentials in myelinated neurons happen only at specialized locations of the axons known as the nodes of Ranvier. The shapes, timings, and propagation speeds of these action potentials are controlled by biochemical interactions among neurons,...

  • Review
  • Open Access
112 Citations
11,236 Views
33 Pages

Plasma Gelsolin: Indicator of Inflammation and Its Potential as a Diagnostic Tool and Therapeutic Target

  • Ewelina Piktel,
  • Ilya Levental,
  • Bonita Durnaś,
  • Paul A. Janmey and
  • Robert Bucki

Gelsolin, an actin-depolymerizing protein expressed both in extracellular fluids and in the cytoplasm of a majority of human cells, has been recently implicated in a variety of both physiological and pathological processes. Its extracellular isoform,...

  • Article
  • Open Access
35 Citations
4,621 Views
22 Pages

Cytochalasin-B-Inducible Nanovesicle Mimics of Natural Extracellular Vesicles That Are Capable of Nucleic Acid Transfer

  • Anastasiya Oshchepkova,
  • Alexandra Neumestova,
  • Vera Matveeva,
  • Lyudmila Artemyeva,
  • Ksenia Morozova,
  • Elena Kiseleva,
  • Marina Zenkova and
  • Valentin Vlassov

1 November 2019

Extracellular vesicles provide cell-to-cell communication and have great potential for use as therapeutic carriers. This study was aimed at the development of an extracellular vesicle-based system for nucleic acid delivery. Three types of nanovesicle...

  • Review
  • Open Access
55 Citations
21,915 Views
34 Pages

Vitamin A Deficiency and Alterations in the Extracellular Matrix

  • Teresa Barber,
  • Guillermo Esteban-Pretel,
  • María Pilar Marín and
  • Joaquín Timoneda

10 November 2014

Vitamin A or retinol which is the natural precursor of several biologically active metabolites can be considered the most multifunctional vitamin in mammals. Its deficiency is currently, along with protein malnutrition, the most serious and common nu...

  • Review
  • Open Access
18 Citations
7,762 Views
23 Pages

Syndecans and Pancreatic Ductal Adenocarcinoma

  • Nausika Betriu,
  • Juan Bertran-Mas,
  • Anna Andreeva and
  • Carlos E. Semino

25 February 2021

Pancreatic Ductal Adenocarcinoma (PDAC) is a fatal disease with poor prognosis because patients rarely express symptoms in initial stages, which prevents early detection and diagnosis. Syndecans, a subfamily of proteoglycans, are involved in many phy...

  • Abstract
  • Open Access
1,310 Views
1 Page

Insight into bacterial cellular composition and functions can be obtained by the application of metabolomics. Metabolomics enables comprehensive characterization of a set of low-molecular-weight compounds which are starting, intermediate, or end prod...

  • Article
  • Open Access
3 Citations
3,614 Views
17 Pages

Human Neutrophil Elastase: Characterization of Intra- vs. Extracellular Inhibition

  • Denise Birk,
  • Erika Siepmann,
  • Stefan Simon and
  • Christian P. Sommerhoff

Neutrophil elastase (HNE), like other members of the so-called GASPIDs (Granule-Associated Serine Peptidases of Immune Defense), is activated during protein biosynthesis in myeloid precursors and stored enzymatically active in cytoplasmic granules of...

  • Feature Paper
  • Article
  • Open Access
14 Citations
7,872 Views
12 Pages

22 August 2016

This article describes a new way to explore neuromorphic engineering, the biomimetic artificial neuron using microfluidic techniques. This new device could replace silicon neurons and solve the issues of biocompatibility and power consumption. The bi...

  • Review
  • Open Access
61 Citations
8,343 Views
31 Pages

Mesenchymal Stem Cell-Derived Extracellular Vesicles: Regenerative Potential and Challenges

  • Shivkanya Fuloria,
  • Vetriselvan Subramaniyan,
  • Rajiv Dahiya,
  • Sunita Dahiya,
  • Kalvatala Sudhakar,
  • Usha Kumari,
  • Kathiresan Sathasivam,
  • Dhanalekshmi Unnikrishnan Meenakshi,
  • Yuan Seng Wu and
  • Neeraj Kumar Fuloria
  • + 3 authors

25 February 2021

Evidence suggests that stem cells exert regenerative potential via the release of extracellular vesicles. Mesenchymal stem cell extracellular vesicles (MSCEVs) offer therapeutic benefits for various pathophysiological ailments by restoring tissues. F...

  • Review
  • Open Access
19 Citations
7,195 Views
39 Pages

Autologous Platelet and Extracellular Vesicle-Rich Plasma as Therapeutic Fluid: A Review

  • Kaja Troha,
  • Domen Vozel,
  • Matevž Arko,
  • Apolonija Bedina Zavec,
  • Drago Dolinar,
  • Matej Hočevar,
  • Zala Jan,
  • Matic Kisovec,
  • Boštjan Kocjančič and
  • Veronika Kralj-Iglič
  • + 12 authors

8 February 2023

The preparation of autologous platelet and extracellular vesicle-rich plasma (PVRP) has been explored in many medical fields with the aim to benefit from its healing potential. In parallel, efforts are being invested to understand the function and dy...

  • Review
  • Open Access
14 Citations
6,509 Views
23 Pages

Spotlight on the Transglutaminase 2-Heparan Sulfate Interaction

  • Giulia Furini and
  • Elisabetta A.M. Verderio

4 January 2019

Heparan sulfate proteoglycans (HSPGs), syndecan-4 (Sdc4) especially, have been suggested as potential partners of transglutaminase-2 (TG2) in kidney and cardiac fibrosis, metastatic cancer, neurodegeneration and coeliac disease. The proposed role for...

  • Review
  • Open Access
9 Citations
5,326 Views
28 Pages

Extracellular Vesicles Released from Stem Cells as a New Therapeutic Strategy for Primary and Secondary Glomerulonephritis

  • Marco Quaglia,
  • Guido Merlotti,
  • Laura Fornara,
  • Andrea Colombatto and
  • Vincenzo Cantaluppi

Current treatment of primary and secondary glomerulopathies is hampered by many limits and a significant proportion of these disorders still evolves towards end-stage renal disease. A possible answer to this unmet challenge could be represented by th...

  • Review
  • Open Access
19 Citations
4,047 Views
23 Pages

Clinical studies have demonstrated the regenerative potential of stem cells for cardiac repair over the past decades, but their widespread use is limited by the poor tissue integration and survival obtained. Natural or synthetic hydrogels or microcar...

  • Article
  • Open Access
1,034 Views
12 Pages

Targeting pH Inversion in Prostate Cancer Cells: A Role for Systems of Molecules of Vegetal Origin

  • Lorena Urbanelli,
  • Krizia Sagini,
  • Federica Delo,
  • Sandra Buratta,
  • Jacopo Lucci,
  • Valentino Mercati and
  • Carla Emiliani

Intracellular alkalosis and extracellular acidosis are two pathological features associated with malignant cells. They offer advantages in terms of invasiveness and proliferation. Extracellular acidification is the consequence of intracellular metabo...

  • Review
  • Open Access
47 Citations
5,757 Views
26 Pages

4 November 2020

Secretory extracellular vesicles (EVs) are membrane-enclosed microparticles that mediate cell to cell communication in proximity to, or distant from, the cell of origin. Cells release a heterogeneous spectrum of EVs depending on their physiologic and...

  • Review
  • Open Access
5 Citations
9,481 Views
24 Pages

Biofilm and Antimicrobial Resistance: Mechanisms, Implications, and Emerging Solutions

  • Bharmjeet Singh,
  • Manju Dahiya,
  • Vikram Kumar,
  • Archana Ayyagari,
  • Deepti N. Chaudhari and
  • Jayesh J. Ahire

Biofilms are a spontaneously formed slimy matrix of extracellular polymeric substances (EPS) enveloping miniature bacterial colonies, which aid in pathogen colonization, shielding the bacteria from antibiotics, as well as imparting them resistance to...

  • Review
  • Open Access
354 Citations
19,839 Views
26 Pages

The Ins and Outs of Cathepsins: Physiological Function and Role in Disease Management

  • Tulasi Yadati,
  • Tom Houben,
  • Albert Bitorina and
  • Ronit Shiri-Sverdlov

13 July 2020

Cathepsins are the most abundant lysosomal proteases that are mainly found in acidic

endo/lysosomal compartments where they play a vital role in intracellular protein degradation,

energy metabolism, and immune responses among a host of other functions....

  • Article
  • Open Access
29 Citations
9,992 Views
11 Pages

Deep Learning-Based Template Matching Spike Classification for Extracellular Recordings

  • In Yong Park,
  • Junsik Eom,
  • Hanbyol Jang,
  • Sewon Kim,
  • Sanggeon Park,
  • Yeowool Huh and
  • Dosik Hwang

31 December 2019

We propose a deep learning-based spike sorting method for extracellular recordings. For analysis of extracellular single unit activity, the process of detecting and classifying action potentials called “spike sorting” has become essential...

  • Review
  • Open Access
5 Citations
3,497 Views
23 Pages

Almost 50 Years of Monomeric Extracellular Ubiquitin (eUb)

  • Ivette Mendoza-Salazar,
  • Ana Fragozo,
  • Aneth P. González-Martínez,
  • Ismael Trejo-Martínez,
  • Rodrigo Arreola,
  • Lenin Pavón,
  • Juan C. Almagro,
  • Luis Vallejo-Castillo,
  • Francisco A. Aguilar-Alonso and
  • Sonia M. Pérez-Tapia

31 January 2024

Monomeric ubiquitin (Ub) is a 76-amino-acid highly conserved protein found in eukaryotes. The biological activity of Ub first described in the 1970s was extracellular, but it quickly gained relevance due to its intracellular role, i.e., post-translat...

  • Article
  • Open Access
4 Citations
3,990 Views
16 Pages

A 2,5-Dihydroxybenzoic Acid–Gelatin Conjugate Inhibits the Basal and Hsp90-Stimulated Migration and Invasion of Tumor Cells

  • Anastasiya V. Snigireva,
  • Oleg S. Morenkov,
  • Yuri Y. Skarga,
  • Alexander V. Lisov,
  • Zoya A. Lisova,
  • Alexey A. Leontievsky,
  • Mariya A. Zhmurina,
  • Viktoria S. Petrenko and
  • Veronika V. Vrublevskaya

The extracellular cell surface-associated and soluble heat shock protein 90 (Hsp90) is known to participate in the migration and invasion of tumor cells. Earlier, we demonstrated that plasma membrane-associated heparan sulfate proteoglycans (HSPGs) b...

  • Review
  • Open Access
231 Views
23 Pages

11 January 2026

Over the past decade, research on urolithins has expanded significantly due to their role as mediators between polyphenol-rich diets and human health. Understanding the relationships between ellagitannin intake, gut microbiota composition, and urolit...

  • Review
  • Open Access
1 Citations
1,699 Views
38 Pages

The Use of Plant-Derived Extracellular Vesicles in Regenerative Medicine Applied to Cutaneous Wound Healing

  • Victoria Pulido-Escribano,
  • Marta Camacho-Cardenosa,
  • Gabriel Dorado,
  • José Manuel Quesada-Gómez,
  • Alfonso Calañas-Continente,
  • María Ángeles Gálvez-Moreno and
  • Antonio Casado-Díaz

The evaluation of the use of extracellular vesicles (derived from different cellular sources and mammalian fluids) in regenerative medicine has produced interesting results. This includes their great potential for the treatment of chronic skin ulcers...

  • Article
  • Open Access
9 Citations
6,878 Views
19 Pages

The Effect of Calcium Ions on Mechanosensation and Neuronal Activity in Proprioceptive Neurons

  • Devan E. Atkins,
  • Kimberly L. Bosh,
  • Grace W. Breakfield,
  • Sydney E. Daniels,
  • Makayla J. Devore,
  • Hailey E. Fite,
  • Landys Z. Guo,
  • Danielle K. J. Henry,
  • Alana K. Kaffenberger and
  • Robin L. Cooper
  • + 9 authors

22 October 2021

Proprioception of all animals is important in being able to have coordinated locomotion. Stretch activated ion channels (SACs) transduce the mechanical force into electrical signals in the proprioceptive sensory endings. The types of SACs vary among...

  • Article
  • Open Access
11 Citations
7,937 Views
22 Pages

13 December 2013

We have developed a computer model of human cardiac ventricular myocyte (CVM), including t-tubular and cleft spaces with the aim of evaluating the impact of accumulation-depletion of ions in restricted extracellular spaces on transmembrane ion transp...

  • Review
  • Open Access
39 Citations
10,452 Views
18 Pages

The MSC-EV-microRNAome: A Perspective on Therapeutic Mechanisms of Action in Sepsis and ARDS

  • Claudia C. dos Santos,
  • Miquéias Lopes-Pacheco,
  • Karen English,
  • Sara Rolandsson Enes,
  • Anna Krasnodembskaya and
  • Patricia R. M. Rocco

9 January 2024

Mesenchymal stromal cells (MSCs) and MSC-derived extracellular vesicles (EVs) have emerged as innovative therapeutic agents for the treatment of sepsis and acute respiratory distress syndrome (ARDS). Although their potential remains undisputed in pre...

  • Article
  • Open Access
13 Citations
11,479 Views
22 Pages

8 January 2015

Disease-specific induced pluripotent stem (iPS) cells can be generated from patients and differentiated into functional cardiomyocytes for characterization of the disease and for drug screening. In order to obtain pure cardiomyocytes for automated el...

  • Review
  • Open Access
24 Citations
5,188 Views
11 Pages

25 July 2023

Mesenchymal stem cell-derived extracellular vesicles (MSC-EVs) are biologically active substances secreted by MSCs into the extracellular matrix that play an immunomodulatory role in skin damage repair. To investigate the mechanism of MSC-EVs in redu...

  • Article
  • Open Access
6 Citations
3,138 Views
14 Pages

5 September 2021

After we identified pGlu-βGlu-Pro-NH2 as the first functional antagonist of the cholinergic central actions of the thyrotropin-releasing hormone (TRH, pGlu-His-Pro-NH2), we became interested in finding the receptor-associated mechanism responsible fo...

  • Review
  • Open Access
1,860 Views
18 Pages

Glucocorticoids (GCs) have revolutionized the treatment of multidisciplinary diseases. Recently, its role in severe infectious diseases has been revisited and discussed since the COVID-19 pandemic. Previous research and discussions have focused more...

  • Review
  • Open Access
7,808 Views
19 Pages

Plantar Fasciitis Pathophysiology and the Potential Role of Mesenchymal Stem Cell-Derived Extracellular Vesicles as Therapy

  • Kevin Liebmann,
  • D. Wood Kimbrough,
  • Thomas M. Best,
  • Dimitrios Kouroupis and
  • Solangel Rodriguez Materon

Plantar fasciitis is a common condition characterized by inflammation and degeneration of the plantar fascia, leading to heel pain and reduced mobility. Affecting both athletic and non-athletic populations, it is a leading cause of foot-related medic...

  • Review
  • Open Access
22 Citations
5,700 Views
40 Pages

Extracellular Vesicles: Advanced Tools for Disease Diagnosis, Monitoring, and Therapies

  • Pedro Lorite,
  • Jorge N. Domínguez,
  • Teresa Palomeque and
  • María Isabel Torres

29 December 2024

Extracellular vesicles (EVs) are a heterogeneous group of membrane-encapsulated vesicles released by cells into the extracellular space. They play a crucial role in intercellular communication by transporting bioactive molecules such as proteins, lip...

  • Article
  • Open Access
2 Citations
3,734 Views
28 Pages

Exploring the Extracellular Macromolecular Composition of Crude Extracts of Penicillium rubens Strain 212 for Elucidation Its Mode of Action as a Biocontrol Agent

  • Maria Carreras,
  • Eduardo A. Espeso,
  • Alba Gutierrez-Docio,
  • Silvia Moreno-Fernandez,
  • Marin Prodanov,
  • Maria Dolores Hernando,
  • Paloma Melgarejo and
  • Inmaculada Larena

10 August 2020

Penicillium rubens strain 212 (PO212) acts as an inducer of systemic resistance in tomato plants. The effect of crude extracellular extracts of PO212 on the soil-borne pathogen Fusarium oxysporum f. sp. lycopersici has been evaluated. Evidence of the...

  • Review
  • Open Access
122 Citations
17,992 Views
27 Pages

9 October 2019

Several physiological processes, including cellular growth, embryonic development, differentiation, metabolism and proliferation, are modulated by genomic and nongenomic actions of thyroid hormones (TH). Several intracellular and extracellular candid...

  • Review
  • Open Access
3 Citations
6,032 Views
20 Pages

Targeted protein degradation (TPD) has emerged as a revolutionary strategy for modulating protein function, offering a promising alternative to traditional small-molecule inhibitors. The distinctive mechanism of action in TPD has previously allowed r...

  • Abstract
  • Open Access
1 Citations
1,129 Views
3 Pages

A Low-Cost Testbed for Neural Microelectrodes

  • Cat-Vu H. Bui,
  • Neethu Maliakal,
  • Hasan Ulusan,
  • Andreas Hierlemann and
  • Fernando Cardes

The performances of microelectrode arrays for neural interfaces strongly depend on electrode design. Due to a lack of simulation tools, electrode engineers often have to refine new designs empirically. This process requires setups of electrical and e...

  • Review
  • Open Access
5 Citations
3,780 Views
17 Pages

Antimicrobial resistance is already a major global health threat, contributing to nearly 5 million deaths annually. The rise of multidrug-resistant pathogens has made many infections increasingly difficult to treat. This growing threat has driven the...

  • Review
  • Open Access
2 Citations
3,472 Views
28 Pages

Background/Objectives: Osteoarthritis (OA) is a prevalent age-related degenerative joint disease causing cartilage damage, leading to a debilitating lifestyle. However, there are currently no drugs on the market that promote cartilage repair, and adv...

  • Review
  • Open Access
46 Citations
8,694 Views
13 Pages

Lecanicillium muscarium CCFEE 5003, isolated in Continental Antarctica, is a powerful producer of extracellular cold-tolerant enzymes. Chitin-hydrolyzing enzymes seems to be the principal extracellular catalytic activities of this psychrotolerant fun...

  • Article
  • Open Access
5 Citations
2,990 Views
20 Pages

Role of Intracellular and Extracellular Annexin A1 in MIA PaCa-2 Spheroids Formation and Drug Sensitivity

  • Nunzia Novizio,
  • Raffaella Belvedere,
  • Elva Morretta,
  • Richard Tomasini,
  • Maria Chiara Monti,
  • Silvana Morello and
  • Antonello Petrella

29 September 2022

Among solid tumors, pancreatic cancer (PC) remains a leading cause of death. In PC, the protein ANXA1 has been identified as an oncogenic factor acting in an autocrine/paracrine way, and also as a component of tumor-deriving extracellular vesicles. H...

  • Article
  • Open Access
2,009 Views
10 Pages

7 November 2024

Glucocorticoids are known to influence hippocampal function, but their rapid non-genomic effects on specific neurons in the hippocampal trisynaptic circuit remain underexplored. This study investigated the immediate effects of glucocorticoids on CA1...

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