scholarly journals New trends in botulinum toxin use in dermatology

2018 ◽  
pp. 277-282 ◽  
Author(s):  
Stefania Guida ◽  
Francesca Farnetani ◽  
Steven P. Nisticò ◽  
Caterina Giorgio Mariarosaria ◽  
Graziella Babino ◽  
...  
Keyword(s):  
Botulinum Toxin ◽  
Botulinum Neurotoxin ◽  
Current Knowledge ◽  
Hypertrophic Scars ◽  
Skin Disorders ◽  
Facial Flushing ◽  
Cutaneous Lesions ◽  
Raynaud Phenomenon ◽  
Skin Conditions ◽  
Review Current

Background: Recent studies have highlighted new botulinum neurotoxin (BoNT) applications in the field of dermatology. Objective: To review current knowledge of BoNT use in dermatology. Methods: The literature of the last 5 years has been reviewed. Results: We describe interesting protocols of BoNT treatment for hyperhidrosis (HH), hypertrophic scars and keloids, Raynaud phenomenon, facial flushing, oily skin, psoriasis, Hailey-Hailey disease, and cutaneous lesions like painful lesions and periorbital syringomas. Conclusions: Several skin conditions eligible for BoNT treatment have been described. After the wide application for HH treatment, scars as well as vascular and inflammatory skin disorders, oily skin and cutaneous lesions represent fields of application of BoNT.

scholarly journals New trends in botulinum toxin use in dermatology

2019 ◽  
pp. 277-282
Author(s):  
Stefania Guida ◽  
Francesca Farnetani ◽  
Steven Nisticò ◽  
Caterina Giorgio Mariarosaria ◽  
Graziella Babino ◽  
...  
Keyword(s):  
Botulinum Toxin ◽  
Botulinum Neurotoxin ◽  
Current Knowledge ◽  
Hypertrophic Scars ◽  
Skin Disorders ◽  
Facial Flushing ◽  
Cutaneous Lesions ◽  
Raynaud Phenomenon ◽  
Skin Conditions ◽  
Review Current

Background: Recent studies have highlighted new botulinum neurotoxin (BoNT) applications in the field of dermatology. Objective: To review current knowledge of BoNT use in dermatology. Methods: The literature of the last 5 years has been reviewed. Results: We describe interesting protocols of BoNT treatment for hyperhidrosis (HH), hypertrophic scars and keloids, Raynaud phenomenon, facial flushing, oily skin, psoriasis, Hailey-Hailey disease, and cutaneous lesions like painful lesions and periorbital syringomas. Conclusions: Several skin conditions eligible for BoNT treatment have been described. After the wide application for HH treatment, scars as well as vascular and inflammatory skin disorders, oily skin and cutaneous lesions represent fields of application of BoNT.

Botulinum toxin and its clinical applications

2015 ◽  
Vol 51 (2) ◽  
pp. 139-146
Author(s):  
Marta Drożdżyńska ◽  
Izabela Sobieraj-Garbiak ◽  
Anna Chlasta ◽  
Maria Jastrzębska
Keyword(s):  
Botulinum Toxin ◽  
Botulinum Neurotoxin ◽  
Current Knowledge ◽  
Disulfide Bridge ◽  
Clinical Applications ◽  
Term Therapy ◽  
Clinical Resistance ◽  
Neuronal Proteins ◽  
Long Term Therapy ◽  
First Time

Botulin, exotoxin produced by C. botulinum, is one of the most potent toxins known to the mankind. For nearly 40 years it has been successfully used in various fields of medicine, despite the word botox is still mainly associated with aesthetic medicine and more or less successful beauty treatments. The review of the literature and description of the current knowledge about botulinum toxin and its clinical applications was the aim of the study. Botulinum toxin is protein composed of two chains linked together by a disulfide bridge. Seven serotypes were distinguish and label from A to G. The botulinum toxin mechanism of action involves proteolysis of specific neuronal proteins which resulting in blockade of acetylcholine release from presynaptic vesicles at the neuromuscular junction. For the first time botulin was used by A. Scott in treatment of strabismus. Since then botulinum neurotoxin has found its application in such areas as ophthalmology, neurology and urology. Botulinum proved to be a safe drug with few adverse effects, among which dysphagia is the most dangerous. Although the effect of botulinum toxin is unstable and reversible, there is a possibility of appearance of antibodies and clinical resistance, particularly in patients undergoing long-term therapy. Since the discovery, botulinum neurotoxin, has undergone a transformation from the deadly poison to the drug used in many areas of medicine. Numerous studies confirm that botulin, when used responsibly with the smallest effective dose and required intervals, is safe for the organism. Botulin can be for physicians a therapeutic tool, which can bring relief from the symptoms and suffering and significantly improving patients quality of life.

Birth marks and neonatal skin disorders. From angel kiss to epidermolysis bullosa

2014 ◽  
Vol 155 (13) ◽  
pp. 500-508 ◽  
Author(s):  
Zsanett Csoma ◽  
Angéla Meszes ◽  
Rita Ábrahám ◽  
Judit Bakki ◽  
Zita Gyurkovits ◽  
...  
Keyword(s):  
Newborn Infants ◽  
Vascular Lesions ◽  
Whole Body ◽  
Special Treatment ◽  
Skin Disorders ◽  
Cutaneous Lesions ◽  
Developmental Abnormalities ◽  
Pigmented Lesions ◽  
Mongolian Spot ◽  
Neonatal Skin

Introduction: At present there are no exact epidemiologic data on the prevalence of neonatal skin disorders and birth marks in Hungary. Aim: The aim of the authors was to investigate the prevalence of skin disorders in mature healthy neonates after birth. Method: The survey was carried out in the Neonatal Care Unit at the Department of Obstetrics and Gynaecology at the University of Szeged between April, 2012 and May, 2013. Results:A total of 2289 newborn infants underwent whole-body screening skin examinations. At least one skin manifestation was found in 63% of the neonates. The major groups of skin disorders were transient benign cutaneous lesions, vascular lesions, pigmented lesions, traumatic, iatrogenic, congenital or acquired disorders with skin injuries, developmental abnormalities and benign skin tumours. The most frequent transient cutaneous lesions were erythema toxicum neonatorum, sebaceous hyperplasia and desquamation. The most common vascular lesions were naevus simplex, haemangioma and haemangioma precursor lesion, while the most frequently observed pigmented lesions were congenital melanocytic naevi and Mongolian spot. Conclusions: In the vast majority of cases, special treatment was not necessary, but 5.27% of the neonates required local dermatologic therapy, and in 9.2% of neonates follow up was recommended. Orv. Hetil., 2014, 155(13), 500–508.

scholarly journals Primary Cultures of Embryonic Chicken Neurons for Sensitive Cell-Based Assay of Botulinum Neurotoxin: Implications for Therapeutic Discovery

2007 ◽  
Vol 12 (3) ◽  
pp. 370-377 ◽  
Author(s):  
Andrea M. Stahl ◽  
Gordon Ruthel ◽  
Edna Torres-Melendez ◽  
Tara A. Kenny ◽  
Rekha G. Panchal ◽  
...  
Keyword(s):  
Nervous System ◽  
Botulinum Toxin ◽  
Neutralizing Antibodies ◽  
Botulinum Neurotoxin ◽  
Potent Inhibitor ◽  
Primary Cultures ◽  
Embryonic Chick ◽  
Sensitive Cell ◽  
Botulinum Neurotoxin A ◽  
Therapeutic Compounds

Botulinum toxin is an exceedingly potent inhibitor of neurotransmission across the neuromuscular junction, causing flaccid paralysis and death. The potential for misuse of this deadly poison as a bioweapon has added a greater urgency to the search for effective therapeutics. The development of sensitive and efficient cell-based assays for the evaluation of toxin antagonists is crucial to the rapid and successful identification of therapeutic compounds. The authors evaluated the sensitivity of primary cultures from 4 distinct regions of the embryonic chick nervous system to botulinum neurotoxin A (BoNT/A) cleavage of synaptosomal-associated protein of 25 kD (SNAP-25). Although differences in sensitivity were apparent, SNAP-25 cleavage was detectable in neuronal cells from each of the 4 regions within 3 h at BoNT/A concentrations of 1 nM or lower. Co-incubation of chick neurons with BoNT/A and toxin-neutralizing antibodies inhibited SNAP-25 cleavage, demonstrating the utility of these cultures for the assay of BoNT/A antagonists. ( Journal of Biomolecular Screening 2007:370-377)

Crystal structures of botulinum neurotoxin X and Weissella oryzae botulinum toxin–like catalytic domains

Toxicon ◽  
2021 ◽  
Vol 190 ◽  
pp. S42
Author(s):  
Sara Košenina ◽  
Geoffrey Masuyer ◽  
Sicai Zhang ◽  
Min Dong ◽  
Pål Stenmark
Keyword(s):  
Botulinum Toxin ◽  
Crystal Structures ◽  
Botulinum Neurotoxin ◽  
Catalytic Domains

scholarly journals Cord Blood-Based Approach to Assess Candidate Vaccine Adjuvants Designed for Neonates and Infants

Vaccines ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 95
Author(s):  
Daisuke Tokuhara ◽  
Norikatsu Hikita
Keyword(s):  
Cord Blood ◽  
Protective Immunity ◽  
Current Knowledge ◽  
Current System ◽  
Innate Immune ◽  
Vaccine Adjuvants ◽  
Adult Humans ◽  
Neonates And Infants ◽  
Induced Immunity ◽  
Review Current

Neonates and infants are particularly susceptible to infections, for which outcomes tend to be severe. Vaccination is a key strategy for preventing infectious diseases, but the protective immunity achieved through vaccination typically is weaker in infants than in healthy adults. One possible explanation for the poor acquisition of vaccine-induced immunity in infants is that their innate immune response, represented by toll-like receptors, is immature. The current system for developing pediatric vaccines relies on the confirmation of their safety and effectiveness in studies involving the use of mature animals or adult humans. However, creating vaccines for neonates and infants requires an understanding of their uniquely immature innate immunity. Here we review current knowledge regarding the innate immune system of neonates and infants and challenges in developing vaccine adjuvants for those children through analyses of cord blood.

scholarly journals Meteorite Orbits from Observations by Camera Networks

1983 ◽  
Vol 6 ◽  
pp. 399-404 ◽  
Author(s):  
Ian Halliday ◽  
Arthur A. Griffin ◽  
Alan T. Blackwell
Keyword(s):  
Current Knowledge ◽  
Great Difficulty ◽  
Camera Networks ◽  
Significant Group ◽  
Lost City ◽  
Knowledge Based ◽  
Alternative Approach ◽  
Physically Identical ◽  
Review Current ◽  
Visual Observations

Camera networks for the study of bright fireballs now have a history approaching two decades• It was hoped that the networks would produce a statistically significant group of recovered meteorites with accurate orbits. Due to the great difficulty in locating the meteorites from a photographed event, there are still only three meteorites with orbits determined from suitable photographs; Pribram, Lost City and Innisfree (Ceplecha I96I, McCrosky et al. 1971, Halliday et al. 1978, respectively). Networks do, however, provide an alternative approach to the problem. Instead of determining approximate orbits from visual observations of recovered meteorite falls, it is now preferable to use reliable orbits from the camera networks for fireballs which are believed to have dropped meteorites that could not be located, or, that are believed to have been physically identical to meteorites, although no appreciable mass survived the atmospheric flight. This paper will review current knowledge based on this approach to the problem.

scholarly journals Synthetic protocell biology: from reproduction to computation

2007 ◽  
Vol 362 (1486) ◽  
pp. 1727-1739 ◽  
Author(s):  
Ricard V Solé ◽  
Andreea Munteanu ◽  
Carlos Rodriguez-Caso ◽  
Javier Macía
Keyword(s):  
Current Knowledge ◽  
Building Blocks ◽  
Biochemical Networks ◽  
Cellular Structures ◽  
Biological Complexity ◽  
Artificial Cell ◽  
Future Challenges ◽  
Cooperative Dynamics ◽  
The Origin Of Life ◽  
Review Current

Cells are the building blocks of biological complexity. They are complex systems sustained by the coordinated cooperative dynamics of several biochemical networks. Their replication, adaptation and computational features emerge as a consequence of appropriate molecular feedbacks that somehow define what life is. As the last decades have brought the transition from the description-driven biology to the synthesis-driven biology, one great challenge shared by both the fields of bioengineering and the origin of life is to find the appropriate conditions under which living cellular structures can effectively emerge and persist. Here, we review current knowledge (both theoretical and experimental) on possible scenarios of artificial cell design and their future challenges.

scholarly journals Lung Interstitial Macrophages: Past, Present, and Future

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Joey Schyns ◽  
Fabrice Bureau ◽  
Thomas Marichal
Keyword(s):  
Dendritic Cells ◽  
Alveolar Macrophages ◽  
Historical Perspective ◽  
Current Knowledge ◽  
Allergic Airway Inflammation ◽  
Immune Functions ◽  
Immune Mediated ◽  
Future Challenges ◽  
Long Time ◽  
Review Current

For a long time, investigations about the lung myeloid compartment have been mainly limited to the macrophages located within the airways, that is, the well-known alveolar macrophages specialized in recycling of surfactant molecules and removal of debris. However, a growing number of reports have highlighted the complexity of the lung myeloid compartment, which also encompass different subsets of dendritic cells, tissue monocytes, and nonalveolar macrophages, called interstitial macrophages (IM). Recent evidence supports that, in mice, IM perform important immune functions, including the maintenance of lung homeostasis and prevention of immune-mediated allergic airway inflammation. In this article, we describe lung IM from a historical perspective and we review current knowledge on their characteristics, ontogeny, and functions, mostly in rodents. Finally, we emphasize some important future challenges for the field.

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