Structural and molecular characteristics of axons in the long head of the biceps tendon

AbstractThe innervation of the long head of the biceps tendon (LHBT) is not sufficiently documented. This is a drawback since pathologies of the LHBT are a major source of shoulder pain. Thus, the study aimed to characterize structurally and molecularly nervous elements of the LHBT. The proximal part of 11 LHBTs was harvested intraoperatively. There were 8 female and 3 male specimens. Age ranged from 66 to 86  years. For structural analyses, nervous elements were viewed in the transmission electron microscope. For molecular characterization, we used general neuronal markers including antibodies against neurofilament and protein gene product 9.5 (PGP9.5) as well as specific neuronal markers including ant ibodies against myelin basic protein (MBP), calcitonin gene-related product (CGRP), substance P (SP), tyrosine hydroxylase (TH), and growth-associated protein 43 (GAP43). Anti-neurofilament and anti-PGP9.5 visualized the overall innervation. Anti-MBP visualized myelination, anti-CGRP and anti-SP noc iceptive fibers, anti-TH sympathetic nerve fibers, and anti-GAP43 nerve fibers during development and regeneration. Immunolabeled sections were analyzed in the confocal laser scanning microscope. We show that the LHBT contains unmyelinated as well as myelinated nerve fibers which group in nerve fasc icles and follow blood vessels. Manny myelinated and unmyelinated axons exhibit molecular features of nociceptive nerve fibers. Another subpopulation of unmyelinated axons exhibits...
Source: Cell and Tissue Research - Category: Cytology Source Type: research

Related Links:

In conclusion, in the absence of obesity, visceral adipose tissue possesses a pronounced anti-inflammatory phenotype during aging which is further enhanced by exercise. Methods of Inducing Cellular Damage are Rarely Relevant to Aging, and the Details Matter https://www.fightaging.org/archives/2019/08/methods-of-inducing-cellular-damage-are-rarely-relevant-to-aging-and-the-details-matter/ One of the major challenges in aging research is determining whether or not models of cellular or organismal damage and its consequences are in any way relevant to the natural processes of aging. One can hit a brick with...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Conclusion: Our results suggest that the AT1R mediated hypertensive response to angiotensin II within the NTS in normotensive rats is GABA and NO dependent. Nitric oxide produced within the NTS tonically potentiates local GABA and glutamate release. Introduction The central nervous system network that regulates the level of sympathetic tone and, hence, blood pressure, is located in the brainstem and consists mainly of the rostral ventrolateral medulla (RVLM), the paraventricular nucleus (PVN) of the hypothalamus and the nucleus tractus solitarii (NTS) (Guyenet, 2006). It is well-established that the RVLM, the so-ca...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
Abstract Diabetes mellitus (DM) is a common disease in Oman as in rest of Gulf Cooperation Council where metabolic syndrome is of high prevalence. DM is a foremost risk factor for urinary tract infections (UTIs). It is also linked to more complicated infections such as emphysematous pyelonephritis (EPN), emphysematous pyelitis (EP), renal/perirenal abscess, emphysematous cystitis, xanthogranulomatous pyelonephritis, and renal papillary necrosis. The diagnosis of these cases is frequently delayed because the clinical manifestations are generic and not different from the typical triad of upper UTI, which include fev...
Source: Saudi Journal of Kidney Diseases and Transplantation - Category: Urology & Nephrology Authors: Tags: Saudi J Kidney Dis Transpl Source Type: research
Conclusions: Magnesium sulfate is an important adjuvant drug in the practice of anesthesia, with several clinical effects and a low incidence of adverse events when used at recommended doses. Introduction Magnesium is the fourth most common ion in the body, and it participates in several cellular processes, including protein synthesis, neuromuscular function and stability of nucleic acid, as well as regulating other electrolytes such as calcium and sodium. Magnesium acts as a cofactor in protein synthesis, neuromuscular function and stability and the function of nucleic acids. It is a component of adenosine 5-triph...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
We examined the expression of TRPV1 in peripheral tissue and DRG neurons of CPIP model rats and we studied whether CPIP model could induce peripheral sensitization of TRPV1 channel and enhance DRG neuron excitability. Then we examined the therapeutic effects of locally applied TRPV1 specific antagonist AMG9810 on pain responses of CPIP model rats. Lastly, we explored the effects of AMG9810 on DRG neuron hyperexcitability and spinal glial activation induced by CPIP. Our results demonstrate that TRPV1 plays an important role in mediating the behavioral hypersensitivity of CPIP model rats via promoting peripheral nociceptor a...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
In this study, a link between mitochondrial changes and infant temperament has also been suggested. Maternal psychosocial stress and lifetime trauma have been associated with decreased mitochondrial DNA copy number in the placenta (115, 116).IndividualityChronic stress links changes in the epigenetic landscape with health conditions (117). Different cell types are characterized by distinct patterns of gene expression due to developmental, environmental, physiological, and pathological reasons (117). Epigenetic mechanisms affect gene function in a dynamic way as a result of different environmental exposures during fetal dev...
Source: Frontiers in Psychiatry - Category: Psychiatry Source Type: research
This study had a large sample size and obtained positive findings in both patients’ subjective ratings and in inflammatory marker levels. It demonstrates the benefits of adding Tai Chi to an antidepressant regimen but does not examine the specific effect of Tai Chi on depression.Field et al. (16) investigated the effects of combined Tai Chi/yoga in 92 prenatally depressed pregnant women. They found that women practicing Tai Chi/yoga (20 min per week for 12 weeks) had lower depression, anxiety, and sleep disturbance scores compared to a waitlist control group (Table 1). This study had a large sample size and provided ...
Source: Frontiers in Psychiatry - Category: Psychiatry Source Type: research
Ryan R. Kelly1,2†, Lindsay T. McDonald1,2†, Nathaniel R. Jensen1,2, Sara J. Sidles1,2 and Amanda C. LaRue1,2* 1Research Services, Ralph H. Johnson VA Medical Center, Charleston, SC, United States 2Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, United States The significant biochemical and physiological effects of psychological stress are beginning to be recognized as exacerbating common diseases, including osteoporosis. This review discusses the current evidence for psychological stress-associated mental health disorders as risk factors for os...
Source: Frontiers in Psychiatry - Category: Psychiatry Source Type: research
By Sandee LaMotte, CNN (CNN) — Here’s another reason why getting a good night’s sleep should be on your must-do list: Sleeping fewer than six hours a night or waking frequently raises your risk of developing damaging plaque in arteries throughout your body, not just your heart. Previous research has shown poor sleep to be strongly associated with coronary heart disease, but “This is the first study to show that objectively measured sleep is independently associated with atherosclerosis throughout the body,” José Ordovás, director of nutrition and genomics at the Jean Mayer USDA H...
Source: WBZ-TV - Breaking News, Weather and Sports for Boston, Worcester and New Hampshire - Category: Consumer Health News Authors: Tags: Boston News Health CNN Heart Disease Sleep Tufts University Source Type: news
Vectris(TM) Sure Scan(R) MRI Lead Kit for Spinal Cord Stimulation, Models: (a) 977A160 (b) 977A175 (c) 977A190 (d) 977A260 (e) 977A275 (f) 977A290 Product Usage: The Medtronic Vectris lead kits contain the implantable spinal cord stimulation lead, as well as additional components used for lead implant as part of a Neurostimulation system for pain therapy. A Medtronic implantable Neurostimulation system is indicated for spinal cord stimulation (SCS) systems as an aid in the management of chronic, intractable pain of the trunk and/or limbs-including unilateral or bilateral pain associated with the following conditions: Faile...
Source: Medical Device Recalls - Category: Medical Devices Source Type: alerts
More News: Brain | Chronic Pain | Cytology | Genetics | Neurology | Pain | PET Scan | Reflex Sympathetic Dystrophy | Study