69,351 results match your criteria neurotrophic factors


Insulin Promotes Schwann-Like Cell Differentiation of Rat Epidermal Neural Crest Stem Cells.

Mol Neurobiol 2021 Jul 23. Epub 2021 Jul 23.

Neurobiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Schwann cells (SCs) are considered potentially attractive candidates for transplantation therapies in neurodegenerative diseases. However, problems arising from the isolation and expansion of the SCs restrict their clinical applications. Establishing an alternative Schwann-like cell type is a prerequisite. Read More

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Role of JNK and p53 in Implementation of Functions of Various Types of Regeneration-Competent Cells of the Nervous Tissue.

Bull Exp Biol Med 2021 Jul 23. Epub 2021 Jul 23.

E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia.

We studied the participation of JNK and p53 in the realization of the growth potential of different types of progenitors of the subventricular zone of mouse brain and secretion of neurotrophins by glial cells. The stimulating role of these signaling molecules in mitotic activity and specialization of multipotent neural stem cells was shown. It was found that JNK and p53 do not participate in the regulation of committed neuronal progenitor cells (clonogenic PSA-NCAM cells). Read More

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CNTs-CaP/chitosan-coated AZ91D magnesium alloy extract promoted rat dorsal root ganglia neuron growth via activating ERK signalling pathway.

Cell Biochem Funct 2021 Jul 22. Epub 2021 Jul 22.

Department of Neurology, First Affiliated Hospital of Harbin Medical University, Harbin, China.

Increasing attention has been paid on the application of biodegradable materials such as magnesium and its alloys in neuron repair. AZ91D magnesium alloy coated with carbon nanotubes (CNTs) and/or calcium phosphate (CaP)/chitosan (CS) was fabricated in this study. To evaluate the bioactivity of these AZ91D-based composites, the extracts were prepared by immersing samples in modified simulated body fluid (m-SBF) for 0, 2, 8, 16, 24, 34, 44, 60, or 90 days. Read More

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Suppression of HIV-associated Macrophage Activation by a p75 Neurotrophin Receptor Ligand.

J Neuroimmune Pharmacol 2021 Jul 22. Epub 2021 Jul 22.

Department of Neurology, University of North Carolina, Chapel Hill, NC, 27599, USA.

Previous studies indicated that nerve growth factor (NGF) and proNGF differentially regulate the phenotype of macrophages and microglia via actions at tropomyosin receptor kinase A (TrkA) and p75 neurotrophin receptors (p75), respectively. The ability of HIV gp120 and virions to induce the secretion of factors toxic to neurons was suppressed by NGF and enhanced by proNGF, suggesting the potential for neurotrophin based "anti-inflammatory" interventions. To investigate the "anti-inflammatory" potential of the p75 ligand, LM11A-31, we treated cultured macrophages and microglia with HIV gp120 in the presence or absence of the ligand and evaluated the morphological phenotype, intrinsic calcium signaling, neurotoxic activity and proteins in the secretome. Read More

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Bone Marrow Mesenchymal Stem Cell Condition Medium Loaded on PCL Nanofibrous Scaffold Promoted Nerve Regeneration After Sciatic Nerve Transection in Male Rats.

Neurotox Res 2021 Jul 26. Epub 2021 Jul 26.

Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil.

Nowadays, researchers pay a vast deal of attention to neural tissue regeneration due to its tremendous effect on the patient's life. There are many strategies, from using conventional autologous nerve grafts to the newly developed methods for reconstructing damaged nerves. Among the various therapeutic methods, incorporating highly potent biomolecules and growth factors, the damaged nerve site would promote nerve regeneration. Read More

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A Novel Mechanism for the Formation and Propagation of Neural Tumors and Lesions through Neural Highways.

Authors:
Robert J Spinner

Clin Anat 2021 Jul 26. Epub 2021 Jul 26.

Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota, United States.

By recognizing anatomic and radiologic patterns of rare and often misdiagnosed peripheral nerve tumors/lesions, we have defined mechanisms for the propagation of neural diseases. The novel concept of the nervous system serving as a complex system of "highways" driving the neural and perineural spread of these lesions is described in three examples: Intraneural dissection of joint fluid in intraneural ganglion cysts, perineural spread of cancer cells, and dissemination of unknown concentrations of neurotrophic/inhibitory factors for growth in hamartomas/choristomas of nerve. Further mapping of these pathways to identify the natural history of diseases, the spectrum of disease evolution, the role of genetic mutations, and how these neural pathways interface with the lymphatic, vascular, and cerebrospinal systems may lead advances in targeted treatments. Read More

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Neuroprotective Effects of Normobaric Hyperoxia and Transplantation of Encapsulated Choroid Plexus Epithelial Cells on The Focal Brain Ischemia.

Cell J 2021 Aug 17;23(3):303-312. Epub 2021 Jul 17.

Department of Animal Sciences and Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran. Email:

Objective: Choroid plexus epithelial cells (CPECs) have the epithelial characteristic, produce cerebrospinal fluid, contribute to the detoxification process in the central nervous system (CNS), and are responsible for the synthesis and release of many nerve growth factors. On the other hand, studies suggest that normobaric hyperoxia (HO) by induction of ischemic tolerance (IT) can protect against brain damage and neurological diseases. We examined the effect of combination therapy of encapsulated CPECs and HO to protect against ischemic brain injury. Read More

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Stress Hormones: Emerging Targets in Gynecological Cancers.

Front Cell Dev Biol 2021 9;9:699487. Epub 2021 Jul 9.

Department of Obstetrics and Gynecology, Changzheng Hospital, Naval Medical University, Shanghai, China.

In the past decade, several discoveries have documented the existence of innervation in ovarian cancer and cervical cancer. Notably, various neurotransmitters released by the activation of the sympathetic nervous system can promote the proliferation and metastasis of tumor cells and regulate immune cells in the tumor microenvironment. Therefore, a better understanding of the mechanisms involving neurotransmitters in the occurrence and development of gynecological cancers will be beneficial for exploring the feasibility of using inexpensive β-blockers and dopamine agonists in the clinical treatment of gynecological cancers. Read More

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Effect of combined intrathecal/intravenous injection of bone marrow derived stromal cells in platelet-rich plasma on spinal cord injury in companion animals.

Open Vet J 2021 Apr-Jun;11(2):270-276. Epub 2021 Jun 4.

Surgery, Anesthesiology and Radiology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.

Background: Companion animals are prone to spinal cord injuries commonly associated with severe locomotor and sensory complications, which can escalate to a state of irreversible paralysis. Stem cell therapies propose a hope for treating spinal cord injuries via differentiation into neurons and associated glial cells, halting the immune attacks, inhibiting apoptosis and necrosis, and secretion of neurotrophic factors that stimulate the regeneration process.

Aim: The study aims to evaluate the use of autologous bone marrow derived stromal cells in platelet-rich plasma carrier for selected clinical cases having chronic spinal cord injuries in dogs and cats via a one-time combined intrathecal/intravenous injection. Read More

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[Research progress on the protective mechanism of insulin like growth factor-1 on inner ear].

Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021 Jun;35(6):572-576

As one of the neurotrophic factors and insulin family, insulin like growth factor-1(IGF-1) can promote cell synthesis and metabolism in tissues and organs, activate cell growth, proliferation and differentiation, and inhibit cell apoptosis. Sensorineural hearing loss is the most common manifestation of the inner ear disease, which is mainly caused by the damage of cochlear hair cells. The lack of IGF-1 directly affects the growth, development and differentiation of cochlear hair cells, thus IGF-1 participates in the maintenance of cell survival and repair during inner ear cell injury. Read More

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TGF-β regulates nerve growth factor expression in a mouse intervertebral disc injury model.

BMC Musculoskelet Disord 2021 Jul 23;22(1):634. Epub 2021 Jul 23.

Department of Orthopaedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-ku Kitasato, Sagamihara City, Kanagawa, Japan.

Background: Intervertebral disc (IVD) degeneration is a major cause of low back pain (LBP). Following disc injury, nerve growth factor (NGF) concentrations rise in IVDs, and anti-NGF therapy has been shown to attenuate LBP in humans. Increased levels of tumor necrosis factor-α (TNF-α) and transforming growth factor-β (TGF-β) in degenerative IVDs and in in vitro studies suggest that these factors promote NGF production. Read More

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BDNF Impact on Biological Markers of Depression-Role of Physical Exercise and Training.

Int J Environ Res Public Health 2021 Jul 15;18(14). Epub 2021 Jul 15.

CIPER, Faculty of Human Kinetics, University of Lisboa, 1499-002 Cruz Quebrada, Portugal.

Depression is the most common and devastating psychiatric disorder in the world. Its symptoms, especially during the pandemic, are observed in all age groups. Exercise training (ET) is well known as a non-pharmacological strategy to alleviate clinical depression. Read More

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Modulation of Brain-Derived Neurotrophic Factor (BDNF) Signaling Pathway by Culinary Sage ( L.).

Int J Mol Sci 2021 Jul 9;22(14). Epub 2021 Jul 9.

Department of Food Science, University of Tennessee, Knoxville, TN 37996, USA.

Culinary sage ( L.) is a common spice plant in the mint family (Lamiaceae) well known for its distinctive culinary and traditional medicinal uses. Sage tea has been used traditionally as a brain-enhancing tonic and extracts from sage have been reported to have both cognitive and memory enhancing effects. Read More

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Elevated levels of cortisol, brain-derived neurotropic factor and tissue plasminogen activator in male children with autism spectrum disorder.

Autism Res 2021 Jul 22. Epub 2021 Jul 22.

Department of Child and Adolescent Psychiatry, Gaziosmanpasa University School of Medicine, Tokat, Turkey.

Several studies demonstrated biological effects of cortisol, brain-derived neurotrophic factor (BDNF) and tissue plasminogen activator (tPA) on human metabolism and central nervous system. Our study investigated the serum levels of tPA along with BDNF and cortisol in children with autism spectrum disorder (ASD). Thirty three male children with ASD ranging in age from 2 to 15 years were selected for the study group and 27 age-matched healthy male children were selected for the control group. Read More

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Lactate as Potential Mediators for Exercise-Induced Positive Effects on Neuroplasticity and Cerebrovascular Plasticity.

Front Physiol 2021 5;12:656455. Epub 2021 Jul 5.

Cognitive and Sports Neuroscience Laboratory, National Demonstration Center for Experimental Sports Science Education, College of Physical Education and Sports Science, South China Normal University, Guangzhou, China.

The accumulated evidence from animal and human studies supports that exercise is beneficial to physical health. Exercise can upregulate various neurotrophic factors, activate neuroplasticity, and play a positive role in improving and enhancing cerebrovascular function. Due to its economy, convenience, and ability to prevent or ameliorate various aging-related diseases, exercise, a healthy lifestyle, is increasingly popularized by people. Read More

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Genome-wide chromatin accessibility analyses provide a map for enhancing optic nerve regeneration.

Sci Rep 2021 Jul 21;11(1):14924. Epub 2021 Jul 21.

Department of Neuroscience, Washington University School of Medicine, St Louis, MO, 63110, USA.

Retinal Ganglion Cells (RGCs) lose their ability to grow axons during development. Adult RGCs thus fail to regenerate their axons after injury, leading to vision loss. To uncover mechanisms that promote regeneration of RGC axons, we identified transcription factors (TF) and open chromatin regions that are enriched in rat embryonic RGCs (high axon growth capacity) compared to postnatal RGCs (low axon growth capacity). Read More

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Use of Plasma Rich in Growth Factors and ReGeneraTing Agent Matrix for the Treatment of Corneal Diseases.

Vision (Basel) 2021 Jul 2;5(3). Epub 2021 Jul 2.

Fernández-Vega University Institute, Ophthalmology Research Foundation, University of Oviedo, 33071 Oviedo, Spain.

This study aimed to investigate the use of Plasma Rich in Growth Factors (PRGF) associated with tissue ReGeneraTing Agent (RGTA) drops for the treatment of noninfectious corneal ulcers. RGTA treatment was applied (one drop every two days); however, if ulcer closure was not achieved, PRGF eye drops treatment was added (four times/day). The time taken to reach the ulcer closure, the Best Corrected Visual Acuity (BCVA), intraocular pressure (IOP), Visual Analog Scale (VAS, in terms of frequency and severity of symptoms), and Ocular Surface Disease Index (OSDI) were evaluated. Read More

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MiR-191 promotes the porcine immature Sertoli cell proliferation by targeting the BDNF gene through activating the PI3K/AKT signaling pathway.

Yi Chuan 2021 Jul;43(7):680-693

Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China.

The number of Sertoli cells in the testis is a major regulator on the sperm production capacity. MicroRNAs (miRNAs) participate in regulating the proliferation and apoptosis of porcine immature Sertoli cells. However, the functions and mechanisms of action of most identified miRNAs in porcine Sertoli cells remain largely unknown. Read More

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Cerebral Dopamine Neurotrophic Factor (CDNF): Structure, Functions, and Therapeutic Potential.

Biochemistry (Mosc) 2021 Jul;86(7):852-866

Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia.

The cerebral dopamine neurotrophic factor (CDNF) together with the mesencephalic astrocyte-derived neurotrophic factor (MANF) form a unique family of neurotrophic factors (NTFs) structurally and functionally different from other proteins with neurotrophic activity. CDNF has no receptors on the cell membrane, is localized mainly in the cavity of endoplasmic reticulum (ER), and its primary function is to regulate ER stress. In addition, CDNF is able to suppress inflammation and apoptosis. Read More

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Simultaneous treatment with pentoxifylline does not adversely affect the neurotrophic effects of brain-derived neurotrophic factor on spiral ganglion neurons.

Neuroreport 2021 Jul 19. Epub 2021 Jul 19.

Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Frankfurt, Goethe University, Frankfurt, Germany.

The hemorheologic drug pentoxifylline is applied for the treatment of sudden sensorineural hearing loss and tinnitus to improve cochlear microcirculation. Recent studies also suggest protective and trophic effects on neuronal cells. Because the preservation of sensorineural structures of the inner ear is fundamental for normal hearing and hearing restoration with auditory prostheses, pentoxifylline and neurotrophic factors such as brain-derived neurotrophic factor (BDNF) are promising candidates to treat degenerative disorders of the inner ear. Read More

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Associations of immunological proteins/traits with schizophrenia, major depression and bipolar disorder: A bi-directional two-sample mendelian randomization study.

Brain Behav Immun 2021 Jul 16. Epub 2021 Jul 16.

Department of Psychiatry, University of Cambridge School of Clinical Medicine, Cambridge, England; Cambridgeshire and Peterborough NHS Foundation Trust, Cambridge, England; MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, England; Centre for Academic Mental Health, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, England; Avon and Wiltshire Mental Health Partnership NHS Trust, Bristol England.

Background: Schizophrenia, bipolar disorder and depression are associated with inflammation. However, it is unclear whether associations of immunological proteins/traits with these disorders are likely to be causal, or could be explained by reverse causality/residual confounding.

Methods: We used bi-directional two-sample Mendelian randomization (MR) and multi-variable MR (MVMR) analysis to examine evidence of causality, specificity and direction of association of 20 immunological proteins/traits (pro-inflammatory cytokines: interleukin (IL)-6, tumour necrosis factor (TNF)-α, IL-12, IL-16, IL-17, IL-18; anti-inflammatory cytokines: IL-1 receptor antagonist (RA), IL-10, IL-13; chemokines: IL-8, monocyte chemo-attractant protein-1 (MCP-1); lymphoid growth-factors: soluble (s) IL-2Rα, IL-4, IL-7, IL-9; myeloid growth-factor: IL-5; acute phase protein: C-Reactive Protein (CRP); immune cells: neutrophils, lymphocytes; neurotrophic factor: brain derived neurotrophic factor (BDNF)) with schizophrenia, major depression and bipolar disorder. Read More

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Topical application of quercetin improves wound repair and regeneration in diabetic rats.

Immunopharmacol Immunotoxicol 2021 Jul 19:1-18. Epub 2021 Jul 19.

Department of Animal Biotechnology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India.

There is an urgent need of effective drug/formulation to speed up the healing process in diabetic wounds. In our earlier studies, quercetin has accelerated the healing of nondiabetic wounds. So, we investigated the wound-healing potentials of quercetin in diabetic rats. Read More

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Whole and refined grains change behavior and reduce brain derived neurotrophic factor and neurotrophin-3 in rats.

J Food Biochem 2021 Jul 18:e13867. Epub 2021 Jul 18.

Department of Physiology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman.

In most of the world, wheat is one of the main staple foods, and is also widely used in livestock feed. In the current study, we investigated the effects of wheat grain consumption on the rat behavior and neurogenesis markers. Thirty male rats were divided into three equal groups (n = 10). Read More

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Intermittent Hypoxia Training Prevents Deficient Learning-Memory Behavior in Mice Modeling Alzheimer's Disease: A Pilot Study.

Front Aging Neurosci 2021 1;13:674688. Epub 2021 Jul 1.

Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, TX, United States.

In mouse models of Alzheimer's disease (AD), normobaric intermittent hypoxia training (IHT) can preserve neurobehavioral function when applied before deficits develop, but IHT's effectiveness after onset of amyloid-β (Aβ) accumulation is unclear. This study tested the hypothesis that IHT improves learning-memory behavior, diminishes Aβ accumulation in cerebral cortex and hippocampus, and enhances cerebrocortical contents of the neuroprotective trophic factors erythropoietin and brain-derived neurotrophic factor (BDNF) in mice manifesting AD traits. Twelve-month-old female 3xTg-AD mice were assigned to untreated 3xTg-AD ( = 6), AD+IHT ( = 6), and AD+sham-IHT ( = 6) groups; 8 untreated wild-type (WT) mice also were studied. Read More

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An Exploratory Assessment of Serum Biomarkers of Post-Cardiac Arrest Syndrome in Children.

Resuscitation 2021 Jul 13. Epub 2021 Jul 13.

Critical Care Medicine UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, United States, 15224; Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, Pittsburgh, PA; Children's Neuroscience Institute, University of Pittsburgh, Pittsburgh, PA. Electronic address:

Aim: We hypothesized that serum biomarkers of inflammation including chemokine, cytokine, pituitary hormones, and growth factors following cardiac arrest in children would independently associate with 6-month neurologic outcome.

Methods: In this prospective observational single center study of children with in-hospital and out-of-hospital cardiac arrest surviving to intensive care unit admission, serum was obtained twice per 24h period between 0h and 96h and once at approximately 196h post-cardiac arrest. Inflammatory mediators, hormones, and growth factors were analyzed by Luminex Multiplex Bead Immunoassay. Read More

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C-terminal domain small phosphatase 1 (CTDSP1) regulates growth factor expression and axonal regeneration in peripheral nerve tissue.

Sci Rep 2021 Jul 14;11(1):14462. Epub 2021 Jul 14.

Laboratory of Clinical and Experimental Orthopaedics, Department of Surgery, Uniformed Services University of Health Sciences, 4801 Rockville Pike, Bethesda, MD, 20889, USA.

Peripheral Nerve Injury (PNI) represents a major clinical and economic burden. Despite the ability of peripheral neurons to regenerate their axons after an injury, patients are often left with motor and/or sensory disability and may develop chronic pain. Successful regeneration and target organ reinnervation require comprehensive transcriptional changes in both injured neurons and support cells located at the site of injury. Read More

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High fat diet and its effects on cognitive health: Alterations of neuronal and vascular components of brain.

Authors:
Sorabh Sharma

Physiol Behav 2021 Jul 11:113528. Epub 2021 Jul 11.

Division of Medical Sciences, University of Victoria, Victoria, BC, Canada. Electronic address:

It has been well recognized that intake of diets rich in saturated fats could result in development of metabolic disorders such as type 2 diabetes mellitus, obesity and cardiovascular diseases. Recent studies have suggested that intake of high fat diet (HFD) is also associated with cognitive dysfunction. Various preclinical studies have demonstrated the impact of short and long term HFD feeding on the biochemical and behavioural alterations. Read More

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Functionalized 3D-printed silk-hydroxyapatite scaffolds for enhanced bone regeneration with innervation and vascularization.

Biomaterials 2021 Jul 1;276:120995. Epub 2021 Jul 1.

Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA. Electronic address:

Our goal was to generate functionalized 3D-printed scaffolds for bone regeneration using silk-hydroxyapatite bone cements and osteoinductive, proangiogenic and neurotrophic growth factors or morphogens for accelerated bone formation. 3D printing was utilized to generate macroporous scaffolds with controlled geometries and architectures that promote osseointegration. We build on the knowledge that the osteoinductive factor Bone Morphogenetic Protein-2 (BMP2) can also positively impact vascularization, Vascular Endothelial Growth Factor (VEGF) can impact osteoblastic differentiation, and that Neural Growth Factor (NGF)-mediated signaling can influence bone regeneration. Read More

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The use of combination regenerative therapies for erectile dysfunction: rationale and current status.

Int J Impot Res 2021 Jul 12. Epub 2021 Jul 12.

Department of Urology, University of Miami, Miller School of Medicine, Miami, FL, USA.

Erectile Dysfunction (ED) is defined as the inability to achieve and maintain an erection sufficient for sexual intercourse. Available treatments for ED provide only symptomatic relief, which is for the most part temporary. Regenerative therapies such as Low Intensity Shockwave, Platelet-Rich Plasma, and Stem Cell therapy can potentially provide a "cure" for ED by reversing the underlying pathology of ED rather than just treating the symptoms. Read More

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Long COVID or Post-acute Sequelae of COVID-19 (PASC): An Overview of Biological Factors That May Contribute to Persistent Symptoms.

Front Microbiol 2021 23;12:698169. Epub 2021 Jun 23.

PolyBio Research Foundation, Kenmore, WA, United States.

The novel virus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused a pandemic of coronavirus disease 2019 (COVID-19). Across the globe, a subset of patients who sustain an acute SARS-CoV-2 infection are developing a wide range of persistent symptoms that do not resolve over the course of many months. These patients are being given the diagnosis Long COVID or Post-acute sequelae of COVID-19 (PASC). Read More

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