scholarly journals The Promising Applications of Stem Cells in the Oral Region: Literature Review

2016 ◽  
Vol 10 (1) ◽  
pp. 227-235 ◽  
Author(s):  
Luciano Barreto Silva ◽  
Alexandrino Pereira Dos Santos Neto ◽  
Rachel Gomes Pelozo Pacheco ◽  
Severino Alves Júnior ◽  
Rebeca Ferraz de Menezes ◽  
...  
Keyword(s):  
Stem Cells ◽  
Literature Review ◽  
Oral Cavity ◽  
Human Body ◽  
Oral Region ◽  
Long Time ◽  
Near Future

Introduction:For a long time researchers have tried to find out a way to grow tissues back to the human body in order to solve transplantation problems by offering the unique opportunity to have their organs back, working properly, in search of life dignity.Literature Review:Stem cells seem to be present in many other tissues than researchers had once thought; and in some specific sites they can be easily collected, without the need of expensive interventions. The oral cavity is one of these regions where their collection can be accomplished, with plenty of accessible sites enriched with these precious cells.Aim:The aim of this literature review is to research where in the mouth can scientists find stem cells to be used in the near future.Key-message:The aim of this literature review is to research where stem cells can be found and collected in the oral cavity.

Neural Stem Cells to Glial Cells an Important Factor for Brain Injury

2020 ◽  
Author(s):  
Prithiv K R Kumar
Keyword(s):  
Stem Cells ◽  
Central Nervous System ◽  
Nervous System ◽  
Neural Stem Cells ◽  
Glial Cells ◽  
Brain Injuries ◽  
The Body ◽  
The Central Nervous System ◽  
Near Future

Stem cells have the capacity to differentiate into any type of cell or organ. Stems cell originate from any part of the body, including the brain. Brain cells or rather neural stem cells have the capacitive advantage of differentiating into the central nervous system leading to the formation of neurons and glial cells. Neural stem cells should have a source by editing DNA, or by mixings chemical enzymes of iPSCs. By this method, a limitless number of neuron stem cells can be obtained. Increase in supply of NSCs help in repairing glial cells which in-turn heal the central nervous system. Generally, brain injuries cause motor and sensory deficits leading to stroke. With all trials from novel therapeutic methods to enhanced rehabilitation time, the economy and quality of life is suppressed. Only PSCs have proven effective for grafting cells into NSCs. Neurons derived from stem cells is the only challenge that limits in-vitro usage in the near future.

scholarly journals Physiological and Psychological Effects of Watching Videos of Different Durations Showing Urban Bamboo Forests with Varied Structures

2020 ◽  
Vol 17 (10) ◽  
pp. 3434
Author(s):  
Yuqian Wang ◽  
Mingyan Jiang ◽  
Yinshu Huang ◽  
Zhiyi Sheng ◽  
Xiao Huang ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Skin Conductance ◽  
Human Body ◽  
Stable State ◽  
Mean Value ◽  
Psychological Effects ◽  
Physiological Indicators ◽  
Psychological Indicators ◽  
Before And After ◽  
Long Time

This study illustrated the physiological and psychological effects of watching videos of different durations showing bamboo forests with varied structures. Physiological indicators, including EEG (electroencephalogram), blood pressure, skin conductance, and pulse, were monitored in 180 Chinese university students (mean age: 20.72 ± 2.56 years) while they were watching bamboo videos. Before and after watching the videos, their psychological indicators, including positive and negative moods, were measured using the Profile of Mood States questionnaire. After watching the bamboo videos of different durations, all of the physiological indicators responded to the stimulation after only 1 min. The indicators showed different trends at 1, 3 and 5 min. EEG decreased and then was maintained at a stable level after 1 min, and the high β, low β, and α waves had no significant differences between 1, 3 and 5 min. Blood pressure dropped to a stable state after 3 min, and the decline was significantly different greater after 3 min than after 1 min. Skin conductance increased for 1 to 5 min, and it did not stabilize after a long time (5 min). Pulse decreased after 1 min but increased after 5 min. After watching the videos with bamboo of varying structures, the physiological and psychological indicators showed significantly different changes. Skin conductance significantly increased (mean value: 6.78%), and the amount of sweat was more effectively reduced, thereby reducing tension, when the students viewed videos of sympodial bamboo forests compared with monopodial bamboo forests. Bamboo forests with a higher canopy density (0.83–0.85) could significantly decrease α waves (mean value: 1.50 Hz), relaxing the human body. High β and low β waves showed greater decreases, with tension reduced more effectively, when bamboo forests with a low tilt ratio (< 1.5%) were viewed. Bamboo forests with neat undergrowth could have more beneficial physiological and psychological effects on the human body.

scholarly journals Today Prospects for Tissue Engineering Therapeutic Approach in Dentistry

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Maurizio Bossù ◽  
Andrea Pacifici ◽  
Daniele Carbone ◽  
Gianluca Tenore ◽  
Gaetano Ierardo ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Stem Cells ◽  
Current Knowledge ◽  
Dental Stem Cells ◽  
Therapeutic Tool ◽  
Exponential Increase ◽  
Major Interest ◽  
Adult Mesenchymal Stem Cells ◽  
Therapeutic Protocols ◽  
Near Future

In dental practice there is an increasing need for predictable therapeutic protocols able to regenerate tissues that, due to inflammatory or traumatic events, may suffer from loss of their function. One of the topics arising major interest in the research applied to regenerative medicine is represented by tissue engineering and, in particular, by stem cells. The study of stem cells in dentistry over the years has shown an exponential increase in literature. Adult mesenchymal stem cells have recently been isolated and characterized from tooth-related tissues and they might represent, in the near future, a new gold standard in the regeneration of all oral tissues. The aim of our review is to provide an overview on the topic reporting the current knowledge for each class of dental stem cells and to identify their potential clinical applications as therapeutic tool in various branches of dentistry.

Development and Implications of Patent Law

2005 ◽  
Vol 2 (5) ◽  
Author(s):  
European Commission
Keyword(s):  
Stem Cells ◽  
Genetic Engineering ◽  
Cell Lines ◽  
Human Body ◽  
Legal Protection ◽  
Patent Law ◽  
Human Stem Cells ◽  
Working Paper ◽  
Key Events ◽  
Biotechnological Inventions

AbstractIntroductionThis is the second report pursuant to Article 16c of the Directive 98/44/EC of the European Parliament and of the Council of 6 July 1998 on the legal protection of biotechnological inventions and bears the title “Developments and implications of patent law in the field of biotechnology and genetic engineering” (hereinafter the “second 16c Report”).Its purpose is to set out the key events which have occurred since publication of the first 16c Report, and to comment on two issues identified in the latter: the scope of patents on sequences or partial sequences of genes which have been isolated from the human body; and the patentability of human stem cells and cell lines obtained from them. The Commission’s analysis is based on the Commission staff working paper SEC(2005)943.

Pain pharmacogenetics

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Mariia A. Slepukhina ◽  
Dmitriy V. Ivashchenko ◽  
Maria A. Sheina ◽  
Andranik Alexandrovich Muradian ◽  
Dmitriy Alexeevich Blagovestnov ◽  
...  
Keyword(s):  
Literature Review ◽  
Human Body ◽  
Postoperative Analgesia ◽  
Clinical Guidelines ◽  
Original Research ◽  
General Anesthetics ◽  
Main Subject ◽  
Current Review ◽  
Inflammatory Drugs ◽  
Selection Of

AbstractPain is a significant problem in medicine. The use of PGx markers to personalize postoperative analgesia can increase its effectiveness and avoid undesirable reactions. This article describes the mechanisms of nociception and antinociception and shows the pathophysiological mechanisms of pain in the human body. The main subject of this article is pharmacogenetic approach to the selection of anesthetics. Current review presents data for local and general anesthetics, opioids, and non-steroidal anti-inflammatory drugs. None of the anesthetics currently has clinical guidelines for pharmacogenetic testing. This literature review summarizes the results of original research available, to date, and draws attention to this area.

EXPRESIÓN DE P53 EN CULTIVO DE CÉLULAS MADRE AISLADAS A PARTIR DE QUISTE RADICULAR INFLAMATORIO

SCIENTIARVM ◽  
2015 ◽  
Vol 1 (1) ◽  
pp. 33-36
Author(s):  
Francis Wendell Jácobo Valdivia ◽  
◽  
Julio Cesar Bernabé Ortiz ◽  
Javier Valero Quispe ◽  
Ivo Palomino Valverde ◽  
...  
Keyword(s):  
Stem Cells ◽  
Oral Cavity ◽  
Surgical Intervention ◽  
Positive Response ◽  
P53 Gene ◽  
Cell Cytoplasm ◽  
Inflammatory Lesions

The inflammatory root cyst is defined as one of the most frequent inflammatory lesions in the oral cavity where it normally involves the apex of the dental roots, giving frequent pathognomonic clinical and radiological characteristics. The objective of this investigation was to determine the expression of p53 in the culture of isolated stem cells from the inflammatory root cyst. In its methodology, the report of a case of a 69-year-old patient was presented, who underwent surgical intervention to extract pieces 11 and 12, from which the sample was obtained for the isolation and culture of the cyst stem cells. periapical inflammatory, obtaining elongated, flat cells with fibroblastic appearance from day 4 and staining with markers for p53 giving a positive response in the evidence of the p53 gene both in the cytoplasm and in the nucleus of these stem cells. Finally, cells can be obtained from the inflammatory root cyst from 4 to 25 days with the use of a modified protocol, in the end, as a contribution to this article, the evidence of the p53 gene is provided both in the nucleus and in the cell cytoplasm. Keywords: Root cyst, p53 gene, stem cells, isolation and culture

scholarly journals Primary Oral Malignant Melanoma: Two Case Reports and Review of Literature

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Neeraj Sharma
Keyword(s):  
Malignant Melanoma ◽  
Early Detection ◽  
Oral Cavity ◽  
Tumor Size ◽  
Malignant Tumors ◽  
Case Reports ◽  
Review Of Literature ◽  
Oral Region ◽  
Rare Neoplasm ◽  
Oral Malignant Melanoma

Primary malignant melanoma of the oral cavity is a rare neoplasm. The tumors tend to metastasize or locally invade tissue more readily than other malignant tumors in the oral region. The survival of patients with mucosal melanomas is less than for those with cutaneous melanomas. Tumor size and metastases are related to the prognosis of the disease. Early detection, therefore, is important.

scholarly journals DIAGNOSIS OF ORAL MUCOSAL PATHOLOGY IN PATIENTS WITH VARIOUS MANIFESTATIONS OF GROUP B VITAMIN IMBALANCE

2021 ◽  
Vol 16 (4) ◽  
pp. 77-83
Author(s):  
Anna Yatsenko ◽  
Lidiya Trankovskaya ◽  
Olga Artyulova
Keyword(s):  
Oral Cavity ◽  
Oral Mucosa ◽  
Human Body ◽  
Clinical Symptoms ◽  
Negative Impact ◽  
Vitamin B12 Deficiency ◽  
Vitamin Deficiency ◽  
The Body ◽  
B Vitamins ◽  
Group B

Subject. The scientific works of recent years show an increase in the degree of negative impact of vitamin deficiency and vitamin-like substances on the state of health of the population. With the deficiency of most vitamins, synthetic processes and regeneration of oral tissues are reduced, so often the initial signs of hypovitaminosis are stomatitis, gingivitis, glossitis, and therefore, it is dentists who are the first to diagnose deviations in the body associated with vitamin deficiency. This justifies the relevance and practical value of studying and describing clinical cases of manifestations of deficient vitamin conditions in the oral cavity. The object – is to study the effect of B vitamins on the oral mucosa in order to increase the effectiveness of diagnosis of vitamin-deficient conditions of the human body. Methodology. These clinical examples illustrate the management experience of patients with manifestations of deficient vitamin conditions on the oral mucosa. Clinical and laboratory methods of diagnosing the analysed conditions of the organism were applied. Statistical processing of materials was carried out using the STATISTICA 10 software (StatSoft, Inc., USA). Results. The deficient condition of the organism in relation to vitamins B2, B6, B12 in patients 18-75 years old has been studied. Characteristic clinical changes on the oral mucosa of the examined patients were established. So, in most patients with vitamin B2 deficiency, the classic Sebrel triad was found: dermatitis, glossitis, cheilitis. In those examined with a lack of vitamin B6, language desquamations (smoothed, polished language) were determined in the 83.6%, often combined with glossodinia. Patients with vitamin B12 deficiency were characterized by a lesion in the form of Meller-Gunter glossitis in 74.9% of cases, moreover, 67.6% of patients showed paresthesia in the area of tongue and oral mucosa. Conclusions. The study found that the first clinical symptoms of deficient conditions of the presented vitamins of group B were found from the oral cavity. Thus, it is the dentist who is the first to diagnose the pathological states of lack of group B vitamins in the human body, which emphasizes the importance and relevance of continuing to study these states of the body.

scholarly journals Integrated Patterning Programs During Drosophila Development Generate the Diversity of Neurons and Control Their Mature Properties

2021 ◽  
Vol 44 (1) ◽  
Author(s):  
Anthony M. Rossi ◽  
Shadi Jafari ◽  
Claude Desplan
Keyword(s):  
Stem Cells ◽  
Nervous System ◽  
Neural Stem Cells ◽  
Cell Types ◽  
Annual Review ◽  
Publication Date ◽  
Temporal Patterning ◽  
Long Time ◽  
Neuronal Types ◽  
And Control

During the approximately 5 days of Drosophila neurogenesis (late embryogenesis to the beginning of pupation), a limited number of neural stem cells produce approximately 200,000 neurons comprising hundreds of cell types. To build a functional nervous system, neuronal types need to be produced in the proper places, appropriate numbers, and correct times. We discuss how neural stem cells (neuroblasts) obtain so-called area codes for their positions in the nervous system (spatial patterning) and how they keep time to sequentially produce neurons with unique fates (temporal patterning). We focus on specific examples that demonstrate how a relatively simple patterning system (Notch) can be used reiteratively to generate different neuronal types. We also speculate on how different modes of temporal patterning that operate over short versus long time periods might be linked. We end by discussing how specification programs are integrated and lead to the terminal features of different neuronal types. Expected final online publication date for the Annual Review of Neuroscience, Volume 44 is July 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

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