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American Journal of Physiology. Cell... Dec 2020Spasmolytic polypeptide/trefoil factor 2 (TFF2)-expressing metaplasia (SPEM) is a mucous-secreting reparative lineage that emerges at the ulcer margin in response to... (Review)
Review
Spasmolytic polypeptide/trefoil factor 2 (TFF2)-expressing metaplasia (SPEM) is a mucous-secreting reparative lineage that emerges at the ulcer margin in response to gastric injury. Under conditions of chronic inflammation with parietal cell loss, SPEM has been found to emerge and evolve into neoplasia. Cluster-of-differentiation gene 44 (CD44) is known to coordinate normal and metaplastic epithelial cell proliferation. In particular, CD44 variant isoform 9 (CD44v9) associates with the cystine-glutamate transporter xCT, stabilizes the protein, and provides defense against reactive oxygen species (ROS). xCT stabilization by CD44v9 leads to defense against ROS by cystine uptake, glutathione (GSH) synthesis, and maintenance of the redox balance within the intracellular environment. Furthermore, p38 signaling is a known downstream ROS target, leading to diminished cell proliferation and migration, two vital processes of gastric epithelial repair. CD44v9 emerges during repair of the gastric epithelium after injury, where it is coexpressed with other markers of SPEM. The regulatory mechanisms for the emergence of CD44v9 and the role of CD44v9 during the process of gastric epithelial regeneration are largely unknown. Inflammation and M2 macrophage infiltration have recently been demonstrated to play key roles in the induction of SPEM after injury. The following review proposes new insights into the functional role of metaplasia in the process of gastric regeneration in response to ulceration. Our insights are extrapolated from documented studies reporting oxyntic atrophy and SPEM development and our current unpublished findings using the acetic acid-induced gastric injury model.
Topics: Acetic Acid; Animals; Gastric Mucosa; Humans; Metaplasia; Regeneration; Stomach
PubMed: 32755448
DOI: 10.1152/ajpcell.00415.2019 -
Nutrients Aug 2019The interplay of gut microbiota, host metabolism, and metabolic health has gained increased attention. Gut microbiota may play a regulatory role in gastrointestinal... (Review)
Review
The interplay of gut microbiota, host metabolism, and metabolic health has gained increased attention. Gut microbiota may play a regulatory role in gastrointestinal health, substrate metabolism, and peripheral tissues including adipose tissue, skeletal muscle, liver, and pancreas via its metabolites short-chain fatty acids (SCFA). Animal and human data demonstrated that, in particular, acetate beneficially affects host energy and substrate metabolism via secretion of the gut hormones like glucagon-like peptide-1 and peptide YY, which, thereby, affects appetite, via a reduction in whole-body lipolysis, systemic pro-inflammatory cytokine levels, and via an increase in energy expenditure and fat oxidation. Thus, potential therapies to increase gut microbial fermentation and acetate production have been under vigorous scientific scrutiny. In this review, the relevance of the colonically and systemically most abundant SCFA acetate and its effects on the previously mentioned tissues will be discussed in relation to body weight control and glucose homeostasis. We discuss in detail the differential effects of oral acetate administration (vinegar intake), colonic acetate infusions, acetogenic fiber, and acetogenic probiotic administrations as approaches to combat obesity and comorbidities. Notably, human data are scarce, which highlights the necessity for further human research to investigate acetate's role in host physiology, metabolic, and cardiovascular health.
Topics: Acetic Acid; Animals; Appetite; Blood Glucose; Body Weight; Colon; Cytokines; Dietary Fiber; Energy Metabolism; Fatty Acids, Volatile; Gastrointestinal Hormones; Gastrointestinal Microbiome; Humans; Insulin; Insulin Resistance; Lipid Metabolism; Obesity; Probiotics
PubMed: 31426593
DOI: 10.3390/nu11081943 -
Pharmacological Research Mar 2023Accumulating evidence indicates gut microbiota contributes to aging-related disorders. However, the exact mechanism underlying gut dysbiosis-related pathophysiological...
Accumulating evidence indicates gut microbiota contributes to aging-related disorders. However, the exact mechanism underlying gut dysbiosis-related pathophysiological changes during aging remains largely unclear. In the current study, we first performed gut microbiota remodeling on old mice by fecal microbiota transplantation (FMT) from young mice, and then characterized the bacteria signature that was specifically altered by FMT. Our results revealed that FMT significantly improved natural aging-related systemic disorders, particularly exerted hepatoprotective effects, and improved glucose sensitivity, hepatosplenomegaly, inflammaging, antioxidative capacity and intestinal barrier. Moreover, FMT particularly increased the abundance of fecal A.muciniphila, which was almost nondetectable in old mice. Interestingly, A.muciniphila supplementation also exerted similar benefits with FMT on old mice. Notably, targeted metabolomics on short chain fatty acids (SCFAs) revealed that only acetic acid was consistently reversed by FMT. Then, acetic acid intervention exerted beneficial actions on both Caenorhabditis elegans and natural aging mice. In conclusion, our current study demonstrated that gut microbiota remodeling improved natural aging-related disorders through A.muciniphila and its derived acetic acid, suggesting that interventions with potent stimulative capacity on A. muciniphila growth and production of acetic acid was alternative and effective way to maintain healthy aging. DATA AVAILABILITY STATEMENT: The data of RNAseq and 16 S rRNA gene sequencing can be accessed in NCBI with the accession number PRJNA848996 and PRJNA849355.
Topics: Mice; Animals; Gastrointestinal Microbiome; Acetic Acid; Verrucomicrobia; Fecal Microbiota Transplantation
PubMed: 36746362
DOI: 10.1016/j.phrs.2023.106687 -
The British Journal of Oral &... Jun 2023The odontogenic keratocyst (OKC) is a common cystic lesion in the jaw. Its management, however, is highly debated with no consensus on the best treatment option.... (Review)
Review
The odontogenic keratocyst (OKC) is a common cystic lesion in the jaw. Its management, however, is highly debated with no consensus on the best treatment option. Clinicians base their approach on treatment efficacy and associated morbidity. Management often consists of enucleation with peripheral ostectomy and adjunctive therapy to prevent recurrence. The aim of our systematic review was to evaluate the safety and efficacy of these different modalities. Embase, Medline, and Cochrane were searched according to the PRISMA guidelines for articles that presented non-syndromic patients with histopathologically confirmed OKC treated with 5-fluorouracil (5FU), Carnoy's solution (CS), or modified Carnoy's solution (MCS) as adjunctive therapy after enucleation and peripheral ostectomy. The outcomes of interest were safety (measured as adverse events) and efficacy (expressed as recurrence). Risk of bias was evaluated using the Newcastle-Ottawa scale. Four studies were included and 62 patients were evaluated. The results show that recurrence occurred only in patients treated with MCS. Reported adverse events were mostly limited to paraesthesia that could be permanent (in the CS and MCS treatment groups) or transient (across all adjunctive therapies). With the prohibition of CS, both MCS and 5FU are promising replacement adjunctive therapies. From a safety and efficacy perspective we consider 5FU, which was associated with the lowest recurrence and fewest adverse events, to be the most viable option. More high-evidence prospective studies, such as randomised controlled trials, with a longer follow-up period are necessary to draw definite conclusions.
Topics: Humans; Prospective Studies; Odontogenic Cysts; Acetic Acid; Chloroform; Odontogenic Tumors
PubMed: 37248124
DOI: 10.1016/j.bjoms.2023.04.006 -
Journal of Perioperative Practice Jun 2022Acetic acid has become more commonly used in orthopaedic surgery. The purposed roles include biofilm eradication and surgical debridement, postoperative scar reduction... (Review)
Review
Acetic acid has become more commonly used in orthopaedic surgery. The purposed roles include biofilm eradication and surgical debridement, postoperative scar reduction and managing soft tissue injuries. Current research is scarce and does not provide conclusive evidence behind acetic acid's efficacy in orthopaedic procedures such as biofilm eradication or acetic acid iontophoresis in soft tissue injuries. Current literature on acetic acid's effects on biofilm eradication is composed of in-vitro studies, which do not demonstrate the potential clinical efficacy of acetic acid. Acetic acid iontophoresis is a novel technique which is now more commonly accepted for soft tissues injuries. Our literature search identified calcifying tendonitis of the shoulder, rotator cuff tendinopathy, heel pain syndrome, plantar fasciitis, achilles tendonitis, calcifying tendonitis of the ankle, myositis ossificans and cervical spondylosis as documented clinical uses. In this narrative review, we present the current uses of acetic acid and acetic acid iontophoresis, while evaluating the evidence revolving around its efficacy, benefits and risks.
Topics: Acetic Acid; Humans; Iontophoresis; Orthopedic Procedures; Soft Tissue Injuries; Tendinopathy
PubMed: 34310234
DOI: 10.1177/17504589211015629 -
Molecules (Basel, Switzerland) Dec 2021The popularity of fruits vinegar (FsV) has been increased recently as a healthy drink wealthy in bioactive compounds that provide several beneficial properties. This... (Review)
Review
The popularity of fruits vinegar (FsV) has been increased recently as a healthy drink wealthy in bioactive compounds that provide several beneficial properties. This review was designed in the frame of valorization of fruits vinegar as a by-product with high value added by providing overall information on its biochemical constituents and beneficial potencies. It contains a cocktail of bioactive ingredients including polyphenolic acids, organic acids, tetramethylperazine, and melanoidins. Acetic acid is the most abundant organic acid and chlorogenic acid is the major phenol in apple vinegar. The administration of fruits vinegar could prevent diabetes, hypercholesterolemia, oxidative stress, cancer, and boost immunity as well as provide a remarkable antioxidant ability. The production techniques influence the quality of vinegar, and consequently, its health benefits.
Topics: Acetic Acid; Biological Products; Fermented Beverages; Fruit; Phytochemicals
PubMed: 35011451
DOI: 10.3390/molecules27010222 -
Yeast (Chichester, England) Jul 2021Acetic acid stress represents a frequent challenge to counteract for yeast cells under several environmental conditions and industrial bioprocesses. The molecular... (Review)
Review
Acetic acid stress represents a frequent challenge to counteract for yeast cells under several environmental conditions and industrial bioprocesses. The molecular mechanisms underlying its response have been mostly elucidated in the budding yeast Saccharomyces cerevisiae, where acetic acid can be either a physiological substrate or a stressor. This review will focus on acetic acid stress and its response in the context of cellular transport, pH homeostasis, metabolism and stress-signalling pathways. This information has been integrated with the results obtained by multi-omics, synthetic biology and metabolic engineering approaches aimed to identify major cellular players involved in acetic acid tolerance. In the production of biofuels and renewable chemicals from lignocellulosic biomass, the improvement of acetic acid tolerance is a key factor. In this view, how this knowledge could be used to contribute to the development and competitiveness of yeast cell factories for sustainable applications will be also discussed.
Topics: Acetic Acid; Biofuels; Industrial Microbiology; Saccharomyces cerevisiae; Saccharomyces cerevisiae Proteins; Stress, Physiological
PubMed: 34000094
DOI: 10.1002/yea.3651 -
Asian Pacific Journal of Cancer... Feb 2021Surgical margin is an important prognostic factor in solid cancer surgery. Frozen section (FS), the gold standard for intraoperative surgical margin evaluation, requires...
OBJECTIVE
Surgical margin is an important prognostic factor in solid cancer surgery. Frozen section (FS), the gold standard for intraoperative surgical margin evaluation, requires extensive waiting time and expensive FS devices. The purpose of this diagnostic study was to verify whether multi-staining (MS) method with acetic acid and iodine could be used to differentiate malignant and non-malignant lesions of solid tumor.
METHODS
The study was conducted on patients with solid tumor who underwent surgery in the Surgical Oncology Division of Dr. Cipto Mangunkusumo General Hospital from December 2017 to April 2018. Samples measuring less than 5 mm, necrotic tissue sample, and patients who did not agree to participate in the study were excluded. Every specimen was divided into two, one side as unstained control and the other side as MS samples. MS samples were sprayed with 10% acetic acid combined with iodine. MS samples and unstained controls were sent for histopathologic results and the pathologist was blinded to group assignment. Acetowhitening reaction in the sample was an indication of a positive MS result, and the presence of malignant foci in the histopathology examination was classified as positive pathological results.
RESULTS
Five-hundred-and-twenty samples were obtained from 150 patients. MS method was found to have sensitivity and specificity of 82%, and 63.5%, respectively. In subgroup analysis, we found that MS method has a sensitivity and specificity of 100% and 79.3%, respectively for epithelial breast tumor; 65.7% and 83.3%, respectively for thyroid nodules; and 94.1% and 33.3%, respectively for oral cavity tumors. MS method reacts positively to solid malignant tumor and negatively to benign tumor and normal tissue (from margin samples). Highest sensitivity was found for breast and oral cavity malignancy, and high specificity was found for thyroid cancers.
CONCLUSION
This study provided an alternative staining method for intraoperative macroscopic surgical margin evaluation, especially for rural areas without frozen section facilities.
Topics: Acetic Acid; Adolescent; Adult; Aged; Child; Coloring Agents; Cross-Sectional Studies; Female; Frozen Sections; Humans; Indicators and Reagents; Iodides; Male; Margins of Excision; Middle Aged; Neoplasms; Sensitivity and Specificity; Staining and Labeling; Young Adult
PubMed: 33639661
DOI: 10.31557/APJCP.2021.22.2.463 -
Molecules (Basel, Switzerland) Oct 2022Chlorinated compounds are usually applied in vegetable sanitization, but there are concerns about their application. Thus, this study aimed to evaluate ultrasound (50...
Chlorinated compounds are usually applied in vegetable sanitization, but there are concerns about their application. Thus, this study aimed to evaluate ultrasound (50 kHz), acetic acid (1000; 2000 mg/L), and peracetic acid (20 mg/L) and their combination as alternative treatments to 200 mg/L sodium dichloroisocyanurate. The overall microbial, physicochemical, and nutritional quality of kale stored at 7 °C were assessed. The impact on Typhimurium was verified by plate-counting and scanning electron microscopy. Ultrasound combined with peracetic acid exhibited higher reductions in aerobic mesophiles, molds and yeasts, and coliforms at 35 °C (2.6; 2.4; 2.6 log CFU/g, respectively). Microbial counts remained stable during storage. The highest reduction in occurred with the combination of ultrasound and acetic acid at 1000 mg/L and acetic acid at 2000 mg/L (2.8; 3.8 log CFU/g, respectively). No synergistic effect was observed with the combination of treatments. The cellular morphology of the pathogen altered after combinations of ultrasound and acetic acid at 2000 mg/L and peracetic acid. No changes in titratable total acidity, mass loss, vitamin C, or total phenolic compounds occurred. Alternative treatments presented equal to or greater efficacies than chlorinated compounds, so they could potentially be used for the decontamination of kale.
Topics: Peracetic Acid; Brassica; Acetic Acid; Disinfectants; Decontamination; Disinfection; Food Microbiology; Colony Count, Microbial; Chlorine Compounds; Salmonella typhimurium; Ascorbic Acid; Chlorine; Food Handling
PubMed: 36296611
DOI: 10.3390/molecules27207019 -
International Journal of Environmental... Mar 2020Herein, the concentrations of formic acid, acetic acid, and ammonia in samples of indoor air for 47 new houses were measured two weeks after completion. The houses were...
Herein, the concentrations of formic acid, acetic acid, and ammonia in samples of indoor air for 47 new houses were measured two weeks after completion. The houses were fabricated with light-gauge steel structures. The measurements were performed in living rooms and bedrooms without furniture and outdoors. Air samples were analyzed using ion chromatography. The mean values were 28 (living room), 30 (bedroom), and 20 μg m (outdoor air) for formic acid; 166 (living room), 151 (bedroom), and 51 μg m (outdoor air) for acetic acid; and 73 (living room), 76 (bedroom), and 21 μg m (outdoor air) for ammonia. The total values of the three substances accounted for 39.4-40.7% of the sum of chemical compound values. The analyzed compounds were indicated by two principal components (PC), PC1 (30.1%) and PC2 (9%), with 39.1% total variance. Formic acid, acetic acid, and ammonia were positively aligned with PC1 and negatively aligned with PC2. Factors such as room temperature, aldehydes, and phthalates were positively aligned with PC1 and negatively aligned with PC2. Furthermore, concentrations of formic acid, acetic acid, and ammonia were significantly and positively correlated with room temperature ( < 0.05).
Topics: Acetic Acid; Air Pollutants; Air Pollution, Indoor; Ammonia; Environmental Monitoring; Formates; Housing
PubMed: 32188069
DOI: 10.3390/ijerph17061940