scholarly journals On the issue of critical arterial stenosis

Author(s):  
A. A. Suprunovich ◽  
A. Ya. Bedrov ◽  
A. A. Vrabiy ◽  
A. A. Moiseev ◽  
A. V. Baykova ◽  
...  

Cardiovascular disease (CVD) is the leading cause of death worldwide. The main contribution to the structure of mortality from CVD is made by atherosclerosis. Indications for surgical treatment of patients with diseases caused by atherosclerotic lesions of the arteries are set taking into account the degree of their stenosis. Angiography has been considered the gold standard for screening patients with CVD for many years. Numerous studies carried out over the past several decades have revealed the weak side of this method in assessing the significance of borderline stenosis. Therefore, to analyze such changes, functional tests were introduced to clarify the indications for surgical intervention. Currently, criteria for the significance of stenosis of the iliac, renal and coronary arteries have been determined. The significance of stenosis of the arteries supplying the brain and intestines is still a matter of debate and requires further study.

Author(s):  
Olugboyega A. Oyewole ◽  
Mosimabale J. Balogun ◽  
Richard A. Omoyeni ◽  
Samuel O. Ogunlade

Background: Congenital Talipes Equinovarus (CTEV) is a common musculoskeletal congenital disorder. Historically, surgical treatment of various types was popular; however, currently the gold standard of treatment is non-operative care using the Ponseti method. This work evaluates the outcome of this former method of managing CTEV before author adopted the Ponseti Method and compares it with the reported outcomes of the Ponseti method in published literature.Methods: A retrospective review of this data from January 1990 to December 2003 was done, the patients demographics, treatment given, duration and outcome of care were analysed using descriptive statistics. This finding was then compared with outcomes of Ponseti method in literature.Results: Here, 145 patients had initial non operative care; eighteen of those patients (12.4%), eventually require either a posteromedial release, a combined posteromedial and posterolateral releases or a triple arthrodesis.Conclusions: The study shows that the success rate of this method of manipulation preceding the adoption of the Ponseti method is 87.6%. This outcome is inferior when compared to the outcome of Ponseti method in published literature. Also, the extensive nature of eventual surgical intervention required to achieve correction is in contrast to the minimal surgeries needed achieve correction of residual deformities following the use of the Ponseti method.


PEDIATRICS ◽  
1954 ◽  
Vol 14 (6) ◽  
pp. 651-658
Author(s):  
HENRY SWAN ◽  
G. E. ARAGON

Although some lung cysts in infancy may be harmless and the pathology reversible, many of these lesions seriously jeopardize life by causing compression atelectasis with pneumonia, by enlarging to sizes incompatible with adequate respiratory function, or by becoming grossly infected. In such instances, surgical removal becomes urgent. The three cases of this disease seen at Colorado General Hospital in the past six years illustrated these complications, and all required surgical intervention. Lung cysts in infancy, if they are symptomatic, should be surgically removed, preserving as much pulmonary parenchyma as possible.


2021 ◽  
Vol 48 (6) ◽  
pp. 670-677
Author(s):  
Maureen Beederman ◽  
David W. Chang

An estimated 250 million people worldwide suffer from lymphedema. In the past, the firstline option for treatment was nonsurgical management, either in the form of compression garments or wrapping, or comprehensive decongestive therapy, with debulking surgery reserved for the more advanced cases. However, with improvements in microsurgical techniques and imaging modalities, surgical intervention is increasingly being utilized. This review highlights recent advancements in the surgical treatment of lymphedema, specifically focusing on improvements in imaging, surgical techniques, and prevention of lymphedema.


2019 ◽  
Vol 32 (2) ◽  
pp. 108-110 ◽  
Author(s):  
E. Besserer-Offroy ◽  
P. Sarret

In the past few years, several biased ligands acting at the mu-opioid receptor were reported in the literature. These agonists are aimed at reducing pain while having fewer side effects than morphine, the gold standard of opioid analgesics. In this mini-review, we describe and discuss the recent advances in mu-biased ligands actually in preclinical and clinical development stages, including the latest U.S. Food and Drug Administration review of oliceridine, a biased mu-agonist for moderate to severe acute pain treatment developed by the company Trevena.


2020 ◽  
Vol 20 (9) ◽  
pp. 800-811 ◽  
Author(s):  
Ferath Kherif ◽  
Sandrine Muller

In the past decades, neuroscientists and clinicians have collected a considerable amount of data and drastically increased our knowledge about the mapping of language in the brain. The emerging picture from the accumulated knowledge is that there are complex and combinatorial relationships between language functions and anatomical brain regions. Understanding the underlying principles of this complex mapping is of paramount importance for the identification of the brain signature of language and Neuro-Clinical signatures that explain language impairments and predict language recovery after stroke. We review recent attempts to addresses this question of language-brain mapping. We introduce the different concepts of mapping (from diffeomorphic one-to-one mapping to many-to-many mapping). We build those different forms of mapping to derive a theoretical framework where the current principles of brain architectures including redundancy, degeneracy, pluri-potentiality and bow-tie network are described.


Author(s):  
Sascha R. A. Alles ◽  
Anne-Marie Malfait ◽  
Richard J. Miller

Pain is not a simple phenomenon and, beyond its conscious perception, involves circuitry that allows the brain to provide an affective context for nociception, which can influence mood and memory. In the past decade, neurobiological techniques have been developed that allow investigators to elucidate the importance of particular groups of neurons in different aspects of the pain response, something that may have important translational implications for the development of novel therapies. Chemo- and optogenetics represent two of the most important technical advances of recent times for gaining understanding of physiological circuitry underlying complex behaviors. The use of these techniques for teasing out the role of neurons and glia in nociceptive pathways is a rapidly growing area of research. The major findings of studies focused on understanding circuitry involved in different aspects of nociception and pain are highlighted in this article. In addition, attention is drawn to the possibility of modification of chemo- and optogenetic techniques for use as potential therapies for treatment of chronic pain disorders in human patients.


2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Kenji Inoue ◽  
Tatsuhiko Kodama ◽  
Hiroyuki Daida

Numerous studies have recently examined the role of pentraxin 3 (PTX3) in clinical situations. The pentraxin family includes C-reactive protein (CRP); however, unlike CRP, PTX3 is expressed predominantly in atherosclerotic lesions that involve macrophages, neutrophils, dendritic cells, or smooth muscle cells. Interestingly, PTX3 gene expression in human endothelial cells is suppressed to a greater extent by pitavastatin than the expression of 6,000 other human genes that have been examined, suggesting that PTX3 may be a novel biomarker for inflammatory cardiovascular disease. The expression and involvement of PTX3 in cardiovascular diseases are discussed in this paper, along with the characteristics of PTX3 that make it a suitable biomarker; namely, that the physiological concentration is known and it is independent of other risk factors. The results discussed in this paper suggest that further investigations into the potential novel use of PTX3 as a biomarker for inflammatory cardiovascular disease should be undertaken.


Biomolecules ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 142
Author(s):  
Mariella Cuomo ◽  
Luca Borrelli ◽  
Rosa Della Monica ◽  
Lorena Coretti ◽  
Giulia De Riso ◽  
...  

The bidirectional microbiota–gut–brain axis has raised increasing interest over the past years in the context of health and disease, but there is a lack of information on molecular mechanisms underlying this connection. We hypothesized that change in microbiota composition may affect brain epigenetics leading to long-lasting effects on specific brain gene regulation. To test this hypothesis, we used Zebrafish (Danio Rerio) as a model system. As previously shown, treatment with high doses of probiotics can modulate behavior in Zebrafish, causing significant changes in the expression of some brain-relevant genes, such as BDNF and Tph1A. Using an ultra-deep targeted analysis, we investigated the methylation state of the BDNF and Tph1A promoter region in the brain and gut of probiotic-treated and untreated Zebrafishes. Thanks to the high resolution power of our analysis, we evaluated cell-to-cell methylation differences. At this resolution level, we found slight DNA methylation changes in probiotic-treated samples, likely related to a subgroup of brain and gut cells, and that specific DNA methylation signatures significantly correlated with specific behavioral scores.


2021 ◽  
Vol 10 (11) ◽  
pp. 2358
Author(s):  
Maria Grazia Giovannini ◽  
Daniele Lana ◽  
Chiara Traini ◽  
Maria Giuliana Vannucchi

The microbiota–gut system can be thought of as a single unit that interacts with the brain via the “two-way” microbiota–gut–brain axis. Through this axis, a constant interplay mediated by the several products originating from the microbiota guarantees the physiological development and shaping of the gut and the brain. In the present review will be described the modalities through which the microbiota and gut control each other, and the main microbiota products conditioning both local and brain homeostasis. Much evidence has accumulated over the past decade in favor of a significant association between dysbiosis, neuroinflammation and neurodegeneration. Presently, the pathogenetic mechanisms triggered by molecules produced by the altered microbiota, also responsible for the onset and evolution of Alzheimer disease, will be described. Our attention will be focused on the role of astrocytes and microglia. Numerous studies have progressively demonstrated how these glial cells are important to ensure an adequate environment for neuronal activity in healthy conditions. Furthermore, it is becoming evident how both cell types can mediate the onset of neuroinflammation and lead to neurodegeneration when subjected to pathological stimuli. Based on this information, the role of the major microbiota products in shifting the activation profiles of astrocytes and microglia from a healthy to a diseased state will be discussed, focusing on Alzheimer disease pathogenesis.


Nutrients ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1623
Author(s):  
Arthur T. Kopylov ◽  
Kristina A. Malsagova ◽  
Alexander A. Stepanov ◽  
Anna L. Kaysheva

The way of plant sterols transformation and their benefits for humans is still a question under the massive continuing revision. In fact, there are no receptors for binding with sterols in mammalians. However, possible biotransformation to steroids that can be catalyzed by gastro-intestinal microflora, microbial cells in prebiotics or cytochromes system were repeatedly reported. Some products of sterols metabolization are capable to imitate resident human steroids and compete with them for the binding with corresponding receptors, thus affecting endocrine balance and entire physiology condition. There are also tremendous reports about the natural origination of mammalian steroid hormones in plants and corresponding receptors for their binding. Some investigations and reports warn about anabolic effect of sterols, however, there are many researchers who are reluctant to believe in and have strong opposing arguments. We encounter plant sterols everywhere: in food, in pharmacy, in cosmetics, but still know little about their diverse properties and, hence, their exact impact on our life. Most of our knowledge is limited to their cholesterol-lowering influence and protective effect against cardiovascular disease. However, the world of plant sterols is significantly wider if we consider the thousands of publications released over the past 10 years.


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