scholarly journals Role of pH Value in Clinically Relevant Diagnosis

Diagnostics ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 107 ◽  
Author(s):  
Shu-Hua Kuo ◽  
Ching-Ju Shen ◽  
Ching-Fen Shen ◽  
Chao-Min Cheng

As a highly influential physiological factor, pH may be leveraged as a tool to diagnose physiological state. It may be especially suitable for diagnosing and assessing skin structure and wound status. Multiple innovative and elegant smart wound dressings combined with either pH sensors or drug control-released carriers have been extensively studied. Increasing our understanding of the role of pH value in clinically relevant diagnostics should assist clinicians and improve personal health management in the home. In this review, we summarized a number of articles and discussed the role of pH on the skin surface as well as the factors that influence skin pH and pH-relevant skin diseases, but also the relationship of skin pH to the wound healing process, including its influence on the activity of proteases, bacterial enterotoxin, and some antibacterial agents. A great number of papers discussing physiological pH value have been published in recent decades, far too many to be included in this review. Here, we have focused on the impact of pH on wounds and skin with an emphasis on clinically relevant diagnosis toward effective treatment. We have also summarized the differences in skin structure and wound care between adults and infants, noting that infants have fragile skin and poor skin barriers, which makes them more vulnerable to skin damage and compels particular care, especially for wounds.

Author(s):  
G.A. Murachueva ◽  
I.M. Rasulov ◽  
S.G. Gusenov

A review of the literature on the stages of the formation of temporary and permanent occlusion has been performed. This stages play an important role not only for the full development of the maxillofacial apparatus, temporomandibular joint, but also the whole organism. The role of early tooth extraction in the formation of the physiological state of the dentoalveolar system is considered. The conclusion is drawn about the need for a deeper study of this problem in the structure of general dental morbidity.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Viet Cao ◽  
Ghinwa Alyoussef ◽  
Nadège Gatcha-Bandjun ◽  
Willis Gwenzi ◽  
Chicgoua Noubactep

AbstractThe role of manganese dioxide (MnO2) in the process of water treatment using metallic iron (Fe0/H2O) was investigated in quiescent batch experiments for t ≤ 60 d. MnO2 was used as an agent to control the availability of solid iron corrosion products (FeCPs) while methylene blue (MB) was an indicator of reactivity. The investigated systems were: (1) Fe0, (2) MnO2, (3) sand, (4) Fe0/sand, (5) Fe0/MnO2, and (6) Fe0/sand/MnO2. The experiments were performed in test tubes each containing 22.0 mL of MB (10 mg L−1) and the solid aggregates. The initial pH value was 8.2. Each system was characterized for the final concentration of H+, Fe, and MB. Results show no detectable level of dissolved iron after 47 days. Final pH values varied from 7.4 to 9.8. The MB discoloration efficiency varies from 40 to 80% as the MnO2 loading increases from 2.3 to 45 g L−1. MB discoloration is only quantitative when the operational fixation capacity of MnO2 for Fe2+ was exhausted. This corresponds to the event where adsorption and co-precipitation with FeCPs is intensive. Adsorption and co-precipitation are thus the fundamental mechanisms of decontamination in Fe0/H2O systems. Hybrid Fe0/MnO2 systems are potential candidates for the design of more sustainable Fe0 filters.


Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1651
Author(s):  
Kippeum Lee ◽  
Hyeon Ji Kim ◽  
Soo A Kim ◽  
Soo-Dong Park ◽  
Jae-Jung Shim ◽  
...  

Skin aging occurs inevitably as a natural result of physiological changes over time. In particular, solar exposure of the skin accounts for up to 90% of skin damage. Numerous studies have examined the ability of dietary constituents to prevent skin aging, and recent research has emphasized the role of functional probiotics in intestinal function and skin aging. However, the mechanism of the interactions between aging and probiotics has not been elucidated yet. The aim of this study was to determine the role of exopolysaccharides (EPS) produced by lactic acid bacteria (LAB) identified as Lactobacillus plantarum HY7714 in regulating tight junctions in intestinal epithelial cells and increasing moisture retention in human dermal fibroblasts cells. We observed that HY7714 EPS controlled intestinal tight junctions in Caco-2 cells by upregulating the genes encoding occludin-1 (OCL-1) and zonula occluden-1 (ZO-1). In addition, HY7714 EPS effectively improved UVB-induced cytotoxicity and hydration capacity in HS68 cells by downregulating production of metalloproteinases (MMPs) and reactive oxygen species (ROS). In summary, HY7714 EPS is an effective anti-aging molecule in skin and may have therapeutic potential against skin diseases and UVB-induced damage. Therefore, HY7714 EPS serves as a functional substance in skin–gut axis communication.


2018 ◽  
Vol 97 (10) ◽  
pp. 967-971
Author(s):  
I. V. Yatsyna ◽  
Elena N. Kryuchkova ◽  
I. Yu. Zhadan

Introduction. High anthropogenic load in the industrialized regions poses a threat to the health of children. Atopic dermatitis (AD) takes one of the leading places in the overall structure of allergic diseases. The purpose of the study was to substantiate preventive measures aimed at reducing the incidence of atopic dermatitis among children living in the territory of the industrially developed region and to evaluate their effectiveness. Material and methods. the analysis of the state of the environment and the incidence of allergodermatosis in children residing in the Mytishchi district of the Moscow region. Two groups of patients aged from 14 to 17 years (70) were selected to develop measures for the prevention of atopic dermatitis. The first group received intravenous laser irradiation of blood (ILRB) and traditional therapy, the second - only traditional treatment. Laboratory studies included indices of immune and antioxidant status. Results. The unfavorable trend in the prevalence of allergic skin diseases in children is presented: allergic dermatoses make up 44.5% (AD - 36.8%, eczema - 7.7%). The increase in severe and moderate forms of AD by 7% and 15% was noted. In this region statistically significant correlations between indices of the air pollution, drinking water, technogenic loading and level of the morbidity rate of skin, including (AD)(r=0,73-0,84) are revealed. Application of the ILRB in children with atopic dermatitis had a positive impact on the state of cellular immunity: the number of CD3+and CD8+ lymphocytes increased by 1.2-1.4 times, the level of IL-10 and IL-4 decreased by 1.5 times; humoral immunity (the number of patients with a positive effect on indices of IgA, IgM, IgE, CIC, was more than 80%); antioxidant status (MDA decreased by 1.3 times, the activity of serum catalase increased by 1.2 times). In general, there was an improvement in the clinical course of the skin damage process, an increase in terms of remission. During the six-month following-up of patients included in the study, in the ILRB group, only 20% had an exacerbation of the disease compared to 68% of the group receiving traditional treatment.


2019 ◽  
Vol 7 (9) ◽  
pp. 279 ◽  
Author(s):  
Adrian Catinean ◽  
Maria Adriana Neag ◽  
Andrei Otto Mitre ◽  
Corina Ioana Bocsan ◽  
Anca Dana Buzoianu

In recent years, increased attention has been paid to the relationship between microbiota and various diseases, especially immune-mediated diseases. Because conventional therapy for many autoimmune diseases is limited both in efficacy and safety, there is an increased interest in identifying nutraceuticals, particularly probiotics, able to modulate the microbiota and ameliorate these diseases. In this review, we analyzed the research focused on the role of gut microbiota and skin in immunity, their role in immune-mediated skin diseases (IMSDs), and the beneficial effect of probiotics in patients with this pathology. We selected articles published between 2009 and 2019 in PubMed and ScienceDirect that provided information regarding microbiota, IMSDs and the role of probiotics in these diseases. We included results from different types of studies including observational and interventional clinical trials or in vivo and in vitro experimental studies. Our results showed that probiotics have a beneficial effect in changing the microbiota of patients with IMSDs; they also influence disease progression. Further studies are needed to better understand the impact of new therapies on intestinal microbiota. It is also important to determine whether the microbiota of patients with autoimmune diseases can be manipulated in order to restore homeostasis of the microbiota.


2021 ◽  
Vol 22 (3) ◽  
pp. 1104
Author(s):  
Monika Szelest ◽  
Katarzyna Walczak ◽  
Tomasz Plech

The aryl hydrocarbon receptor (AhR) plays a crucial role in environmental responses and xenobiotic metabolism, as it controls the transcription profiles of several genes in a ligand-specific and cell-type-specific manner. Various barrier tissues, including skin, display the expression of AhR. Recent studies revealed multiple roles of AhR in skin physiology and disease, including melanogenesis, inflammation and cancer. Tryptophan metabolites are distinguished among the groups of natural and synthetic AhR ligands, and these include kynurenine, kynurenic acid and 6-formylindolo[3,2-b]carbazole (FICZ). Tryptophan derivatives can affect and regulate a variety of signaling pathways. Thus, the interest in how these substances influence physiological and pathological processes in the skin is expanding rapidly. The widespread presence of these substances and potential continuous exposure of the skin to their biological effects indicate the important role of AhR and its ligands in the prevention, pathogenesis and progression of skin diseases. In this review, we summarize the current knowledge of AhR in skin physiology. Moreover, we discuss the role of AhR in skin pathological processes, including inflammatory skin diseases, pigmentation disorders and cancer. Finally, the impact of FICZ, kynurenic acid, and kynurenine on physiological and pathological processes in the skin is considered. However, the mechanisms of how AhR regulates skin function require further investigation.


2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Gihyeon Kim ◽  
Misun Kim ◽  
Minji Kim ◽  
Changho Park ◽  
Youngmin Yoon ◽  
...  

AbstractAn unbalanced microbial ecosystem on the human skin is closely related to skin diseases and has been associated with inflammation and immune responses. However, little is known about the role of the skin microbiome on skin aging. Here, we report that the Streptococcus species improved the skin structure and barrier function, thereby contributing to anti-aging. Metagenomic analyses showed the abundance of Streptococcus in younger individuals or those having more elastic skin. Particularly, we isolated Streptococcus pneumoniae, Streptococcus infantis, and Streptococcus thermophilus from face of young individuals. Treatment with secretions of S. pneumoniae and S. infantis induced the expression of genes associated with the formation of skin structure and the skin barrier function in human skin cells. The application of culture supernatant including Streptococcal secretions on human skin showed marked improvements on skin phenotypes such as elasticity, hydration, and desquamation. Gene Ontology analysis revealed overlaps in spermidine biosynthetic and glycogen biosynthetic processes. Streptococcus-secreted spermidine contributed to the recovery of skin structure and barrier function through the upregulation of collagen and lipid synthesis in aged cells. Overall, our data suggest the role of skin microbiome into anti-aging and clinical applications.


Antioxidants ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 95
Author(s):  
Beatriz Castejón-Vega ◽  
Maurizio Battino ◽  
José L. Quiles ◽  
Beatriz Bullon ◽  
Mario D. Cordero ◽  
...  

The Papillon–Lefèvre syndrome (PLS) is a rare autosomal recessive disorder caused by mutations in the Cathepsin C (CTSC) gene, characterized by periodontitis and palmoplantar hyperkeratosis. The main inflammatory deficiencies include oxidative stress and autophagic dysfunction. Mitochondria are the main source of reactive oxygen species; their impaired function is related to skin diseases and periodontitis. The mitochondrial function has been evaluated in PLS and mitochondria have been targeted as a possible treatment for PLS. We show for the first time an important mitochondrial dysfunction associated with increased oxidative damage of mtDNA, reduced CoQ10 and mitochondrial mass and aberrant morphologies of the mitochondria in PLS patients. Mitochondrial dysfunction, determined by oxygen consumption rate (OCR) in PLS fibroblasts, was treated with CoQ10 supplementation, which determined an improvement in OCR and a remission of skin damage in a patient receiving a topical administration of a cream enriched with CoQ10 0.1%. We provide the first evidence of the role of mitochondrial dysfunction and CoQ10 deficiency in the pathophysiology of PLS and a future therapeutic option for PLS.


2015 ◽  
Vol 9 (12) ◽  
pp. 43 ◽  
Author(s):  
Arash Abinama ◽  
Masoud Jafari

<p class="zhengwen"><span lang="EN-GB">The design of hospitals is extremely important; any person may spend a part of his life in a hospital. Considering human interaction with the environment, psychological aspects of design and their impact on the moods of inpatients and their companions and medical team ergonomics and performance, the process of designing hospitals becomes more complex. The design of operational spaces in hospitals lack appropriate and functional properties in this regard. This paper considers the studies on the role of architecture and appropriate design on increasing the quality of the hospital hoteling, patients’ satisfaction, life expectancy and improved healing process, considering the design of spaces for inpatients’ companion and medical team. Furthermore, considering the potential and capacity of admitting foreign patients in Iran, the impact of these factors on medical tourism is also investigated. The objective of the present research is applied and is descriptive</span><span lang="EN-GB">/analytical that considered various aspects of the problem from different perspectives. The findings of the research show that implementing the above standards in designing hospitals leads to increased satisfaction, improvement in inpatient morale, speedy healing process, and more relaxed patients’ family and medical staff. In addition, the impacts of the above items will result in increased medical tourism.</span></p>


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