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Woo YR, Kim HS. Interaction between the microbiota and the skin barrier in aging skin: a comprehensive review. Front Physiol 2024; 15:1322205. [PMID: 38312314 PMCID: PMC10834687 DOI: 10.3389/fphys.2024.1322205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 01/03/2024] [Indexed: 02/06/2024] Open
Abstract
The interplay between the microbes and the skin barrier holds pivotal significance in skin health and aging. The skin and gut, both of which are critical immune and neuroendocrine system, harbor microbes that are kept in balance. Microbial shifts are seen with aging and may accelerate age-related skin changes. This comprehensive review investigates the intricate connection between microbe dynamics, skin barrier, and the aging process. The gut microbe plays essential roles in the human body, safeguarding the host, modulating metabolism, and shaping immunity. Aging can perturb the gut microbiome which in turn accentuates inflammaging by further promoting senescent cell accumulation and compromising the host's immune response. Skin microbiota diligently upholds the epidermal barrier, adeptly fending off pathogens. The aging skin encompasses alterations in the stratum corneum structure and lipid content, which negatively impact the skin's barrier function with decreased moisture retention and increased vulnerability to infection. Efficacious restoration of the skin barrier and dysbiosis with strategic integration of acidic cleansers, emollients with optimal lipid composition, antioxidants, and judicious photoprotection may be a proactive approach to aging. Furthermore, modulation of the gut-skin axis through probiotics, prebiotics, and postbiotics emerges as a promising avenue to enhance skin health as studies have substantiated their efficacy in enhancing hydration, reducing wrinkles, and fortifying barrier integrity. In summary, the intricate interplay between microbes and skin barrier function is intrinsically woven into the tapestry of aging. Sound understanding of these interactions, coupled with strategic interventions aimed at recalibrating the microbiota and barrier equilibrium, holds the potential to ameliorate skin aging. Further in-depth studies are necessary to better understand skin-aging and develop targeted strategies for successful aging.
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Affiliation(s)
- Yu Ri Woo
- Department of Dermatology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hei Sung Kim
- Department of Dermatology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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AbouSamra MM, Farouk F, Abdelhamed FM, Emam KAF, Abdeltawab NF, Salama AH. Synergistic approach for acne vulgaris treatment using glycerosomes loaded with lincomycin and lauric acid: Formulation, in silico, in vitro, LC-MS/MS skin deposition assay and in vivo evaluation. Int J Pharm 2023; 646:123487. [PMID: 37805147 DOI: 10.1016/j.ijpharm.2023.123487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 09/23/2023] [Accepted: 10/04/2023] [Indexed: 10/09/2023]
Abstract
This study aims to develop a pharmaceutical formulation that combines the potent antibacterial effect of lincomycin and lauric acid against Cutibacterium acnes (C. acnes), a bacterium implicated in acne. The selection of lauric acid was based on an in silico study, which suggested that its interaction with specific protein targets of C. acnes may contribute to its synergistic antibacterial and anti-inflammatory effects. To achieve our aim, glycerosomes were fabricated with the incorporation of lauric acid as a main constituent of glycerosomes vesicular membrane along with cholesterol and phospholipon 90H, while lincomycin was entrapped within the aqueous cavities. Glycerol is expected to enhance the cutaneous absorption of the active moieties via hydrating the skin. Optimization of lincomycin-loaded glycerosomes (LM-GSs) was conducted using a mixed factorial experimental design. The optimized formulation; LM-GS4 composed of equal ratios of cholesterol:phospholipon90H:Lauric acid, demonstrated a size of 490 ± 17.5 nm, entrapment efficiency-values of 90 ± 1.4 % for lincomycin, and97 ± 0.2 % for lauric acid, and a surface charge of -30.2 ± 0.5mV. To facilitate its application on the skin, the optimized formulation was incorporated into a carbopol hydrogel. The formed hydrogel exhibited a pH value of 5.95 ± 0.03 characteristic of pH-balanced skincare and a shear-thinning non-Newtonian pseudoplastic flow. Skin deposition of lincomycin was assessed using an in-house developed and validated LC-MS/MS method employing gradient elution and electrospray ionization detection. Results revealed that LM-GS4 hydrogel exhibited a two-fold increase in skin deposition of lincomycin compared to lincomycin hydrogel, indicating improved skin penetration and sustained release. The synergistic healing effect of LM-GS4 was evidenced by a reduction in inflammation, bacterial load, and improved histopathological changes in an acne mouse model. In conclusion, the proposed formulation demonstrated promising potential as a topical treatment for acne. It effectively enhanced the cutaneous absorption of lincomycin, exhibited favorable physical properties, and synergistic antibacterial and healing effects. This study provides valuable insights for the development of an effective therapeutic approach for acne management.
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Affiliation(s)
- Mona M AbouSamra
- Pharmaceutical Technology Department, National Research Centre, Dokki, Cairo 12622, Egypt.
| | - Faten Farouk
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ahram Canadian University, 6(th) of October City, Cairo, Egypt
| | - Farah M Abdelhamed
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Khloud A F Emam
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Nourtan F Abdeltawab
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Alaa H Salama
- Pharmaceutical Technology Department, National Research Centre, Dokki, Cairo 12622, Egypt; Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ahram Canadian University, 6(th) of October City, Cairo, Egypt.
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Mergen B, Onal I, Gulmez A, Caytemel C, Yildirim Y. Conjunctival Microbiota and Blepharitis Symptom Scores in Patients With Ocular Rosacea. Eye Contact Lens 2023; 49:339-343. [PMID: 37363964 DOI: 10.1097/icl.0000000000001008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2023] [Indexed: 06/28/2023]
Abstract
PURPOSE Investigation of the relationship between blepharitis-related symptom scores, tear film functions, and conjunctival microbiota in patients with ocular rosacea (OR) compared with healthy controls was aimed. METHODS Consecutive 33 eyes of 33 patients with OR who were admitted from the dermatology clinic and age-matched and gender-matched 30 healthy controls were included in the study. Tear breakup time (TBUT), Schirmer score, and blepharitis symptom score (BLISS) were recorded for each patient. For the bacteriological examination, bacterial culture was obtained by inoculating the samples on chocolate agar, blood agar, and fluid thioglycollate medium. The growth of different colonies of bacteria was identified using matrix-assisted laser desorption or ionization time-of-flight mass spectrometry. RESULTS Bacterial culture positivity was observed in 13 eyes (39.4%) in the patients with OR and 10 eyes (33.3%) in the controls ( P =0.618). Patients with OR showed worse TBUT and Schirmer scores, and higher BLISSs ( P =0.005, P =0.007, and P =0.001, respectively). Patients with OR with conjunctival culture-positive results showed higher BLISSs (8.0±4.7) compared with those with negative results (4.7±2.3; P <0.001). The most frequent bacteria was Micrococcus luteus (18.2%) in patients with OR and Staphylococcus epidermidis (20.0%) in the controls. CONCLUSION This pilot study showed that patients with OR had similar conjunctival culture positivity compared with healthy controls. However, the observation of different dominant bacterial species in conjunctival microbiota and the observation of worse BLISSs in patients with OR with positive culture might suggest a potential role of conjunctival microbiota in the pathogenesis of OR.
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Affiliation(s)
- Burak Mergen
- Department of Ophthalmology (B.M., I.O., Y.Y.); Department of Medical Microbiology (A.G.); and Department of Dermatology and Venereology (C.C.), University of Health Sciences, Basaksehir Cam and Sakura City Hospital, Istanbul, Turkey
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Lin X, Li YZ, Chen T, Min SH, Wang DF, Ding MM, Jiang G. Effects of wearing personal protective equipment during COVID-19 pandemic on composition and diversity of skin bacteria and fungi of medical workers. J Eur Acad Dermatol Venereol 2022; 36:1612-1622. [PMID: 35538594 PMCID: PMC9348071 DOI: 10.1111/jdv.18216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 04/21/2022] [Indexed: 01/08/2023]
Abstract
BACKGROUND During the COVID-19 pandemic, wearing PPE can induce skin damage such as erythema, pruritus, erosion, and ulceration among others. Although the skin microbiome is considered important for skin health, the change of the skin microbiome after wearing PPE remain unknown. OBJECTIVE The present study aimed to characterize the diversity and structure of bacterial and fungal flora on skin surfaces of healthcare workers wearing personal protective equipment (PPE) during the COVID-19 pandemic using metagenomic next-generation sequencing (mNGS). METHODS A total of 10 Chinese volunteers were recruited and the microbiome of their face, hand, and back were analyzed before and after wearing PPE. Moreover, VISIA was used to analyze skin features. RESULTS Results of alpha bacterial diversity showed that there was statistically significant decrease in alpha diversity indice in the skin samples from face, hand, and three sites after wearing PPE as compared with the indice in the skin samples before wearing PPE. Further, the results of evaluated alpha fungal diversity show that there was a statistically significant decrease in alpha diversity indices in the skin samples from hand after wearing PPE as compared with the indices in the skin samples before wearing PPE (P<0.05). Results of the current study found that the main bacteria on the face, hand, and back skin samples before wearing the PPE were Propionibacterium spp. (34.04%), Corynebacterium spp. (13.12%), and Staphylococcus spp. (38.07%). The main bacteria found on the skin samples after wearing the PPE were Staphylococcus spp. (31.23%), Xanthomonas spp. (26.21%), and Cutibacterium spp. (42.59%). The fungal community composition was similar in three skin sites before and after wearing PPE. CONCLUSION It was evident that wearing PPE may affect the skin microbiota, especially bacteria. Therefore, it was evident that the symbiotic microbiota may reflect the skin health of medical workers during the COVID-19 pandemic.
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Affiliation(s)
- X Lin
- Department of dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Y Z Li
- Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - T Chen
- Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - S H Min
- Department of dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - D F Wang
- Department of dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - M M Ding
- Department of dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - G Jiang
- Department of dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
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Fritz SA, Wylie TN, Gula H, Hogan PG, Boyle MG, Muenks CE, Sullivan ML, Burnham CAD, Wylie KM. Longitudinal Dynamics of Skin Bacterial Communities in the Context of Staphylococcus aureus Decolonization. Microbiol Spectr 2022; 10:e0267221. [PMID: 35384711 PMCID: PMC9045213 DOI: 10.1128/spectrum.02672-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 03/15/2022] [Indexed: 11/22/2022] Open
Abstract
Decolonization with topical antimicrobials is frequently prescribed in health care and community settings to prevent Staphylococcus aureus infection. However, effects on commensal skin microbial communities remains largely unexplored. Within a household affected by recurrent methicillin-resistant S. aureus skin and soft tissue infections (SSTI), skin swabs were collected from the anterior nares, axillae, and inguinal folds of 14 participants at 1- to 3-month intervals over 24 months. Four household members experienced SSTI during the first 12-months (observational period) and were prescribed a 5-day decolonization regimen with intranasal mupirocin and bleach water baths at the 12-month study visit. We sequenced the 16S rRNA gene V1-V2 region and compared bacterial community characteristics between the pre- and post-intervention periods and between younger and older subjects. The median Shannon diversity index was stable during the 12-month observational period at all three body sites. Bacterial community characteristics (diversity, stability, and taxonomic composition) varied with age. Among all household members, not exclusively among the four performing decolonization, diversity was unstable throughout the year post-intervention. In the month after decolonization, bacterial communities were changed. Although communities largely returned to their baseline states, relative abundance of some taxa remained changed throughout the year following decolonization (e.g., more abundant Bacillus; less abundant Cutibacterium). This 5-day decolonization regimen caused disruption of skin bacteria, and effects differed in younger and older subjects. Some effects were observed throughout the year post-intervention, which emphasizes the need for better understanding of the collateral effects of decolonization for S. aureus eradication. IMPORTANCE Decolonization with topical antimicrobials is frequently prescribed to prevent Staphylococcus aureus infection, but the effects on commensal skin bacteria are undetermined. We found that decolonization with mupirocin and bleach water baths leads to sustained disruption of bacterial communities.
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Affiliation(s)
- Stephanie A. Fritz
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Todd N. Wylie
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, USA
- McDonnell Genome Institute, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Haley Gula
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Patrick G. Hogan
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Mary G. Boyle
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Carol E. Muenks
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Melanie L. Sullivan
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Carey-Ann D. Burnham
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, USA
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, Missouri, USA
- Department of Pathology & Immunology, Washington University School of Medicine, St. Louis, Missouri, USA
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Kristine M. Wylie
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, USA
- McDonnell Genome Institute, Washington University School of Medicine, St. Louis, Missouri, USA
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Mapping the Lipids of Skin Sebaceous Glands and Hair Follicles by High Spatial Resolution MALDI Imaging Mass Spectrometry. Pharmaceuticals (Basel) 2022; 15:ph15040411. [PMID: 35455408 PMCID: PMC9031257 DOI: 10.3390/ph15040411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/20/2022] [Accepted: 03/24/2022] [Indexed: 11/16/2022] Open
Abstract
Matrix-assisted laser desorption/ionization (MALDI) imaging mass spectrometry (IMS) is a technology that utilizes the high sensitivity and specificity of mass spectrometry, combined with a high spatial resolution to characterize the molecular species present in skin tissue. In this article, we use MALDI IMS to map specific lipids characteristic of two important skin appendages in minipig skin: the sebaceous glands and hair follicles. A set of specific lipid markers linked to the synthesis of sebum, stages of sebum production, and the secretion of sebum for two different sebaceous gland subzones, the peripheral and central necrotic, were identified. Furthermore, biochemical pathway analysis of the identified markers provides potential drug-targeting strategies to reduce sebum overproduction in pathological conditions. In addition, specific lipid markers characteristic of the different layers in the hair follicle bulge area, including the outer root sheath, the inner root sheath, and the medulla that are associated with the growth cycles of the hair, were determined. This research highlights the ability of MALDI IMS to link a molecular distribution not only to the morphological features in skin tissue but to the physiological state as well. Thus, this platform can provide a basis for the investigation of biochemical pathways as well as the mechanisms of disease and pharmacology in the skin, which will ultimately be critical for drug discovery and the development of dermatology-related illnesses.
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Habib BA, Abdeltawab NF, Salah Ad-Din I. D-optimal mixture design for optimization of topical dapsone niosomes: in vitro characterization and in vivo activity against Cutibacterium acnes. Drug Deliv 2022; 29:821-836. [PMID: 35266431 PMCID: PMC8920366 DOI: 10.1080/10717544.2022.2048131] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
This study aimed to illustrate the use of D-optimal mixture design (DOMD) for optimization of an enhancer containing Dapsone niosomal formula for acne topical treatment. Mixture components (MixCs) studied were: Span 20, Cholesterol, and Cremophor RH. Different responses were measured. Optimized formula (OF) was selected to minimize particle size and maximize absolute zeta potential and entrapment efficiency. Optimized formula gel (OF-gel) was prepared and characterized. OF-gel in vivo skin penetration using confocal laser scanning microscopy and activity against Cutibacterium acnes in acne mouse model were studied. Based on DOMD results analysis, adequate models were derived. Piepel and contour plots were plotted accordingly to explain how alteration in MixCs L-pseudo values affected studied responses and regions for different responses’ values. The OF had suitable predicted responses which were in good correlation with the actually measured ones. The OF-gel showed suitable characterization and in vivo skin penetration up to the dermis layer. In vivo acne mouse-model showed that OF-gel-treated group (OF-gel-T-gp) had significantly better recovery (healing) criteria than untreated (UT-gp) and Aknemycin®-treated (A-T-gp) groups. This was evident in significantly higher reduction of inflammation percent observed in OF-gel-T-gp than both UT-gp and A-T-gp. Better healing in OF-gel-T-gp compared with other groups was also verified by histopathological examination. Moreover, OF-gel-T-gp and A-T-gp bacterial loads were non-significantly different from each other but significantly lower than UT-gp. Thus, DOMD was an adequate statistical tool for optimization of an appropriate enhancer containing Dapsone niosomal formula that proved to be promising for topical treatment of acne.
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Affiliation(s)
- Basant A Habib
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Nourtan F Abdeltawab
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Ibtehal Salah Ad-Din
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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Widhiati S, Purnomosari D, Wibawa T, Soebono H. The role of gut microbiome in inflammatory skin disorders: A systematic review. Dermatol Reports 2022; 14:9188. [PMID: 35371420 PMCID: PMC8969879 DOI: 10.4081/dr.2022.9188] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 10/13/2021] [Indexed: 12/13/2022] Open
Abstract
The close relationship between the intestine and the skin has been widely stated, seen from gastrointestinal (GI) disorders often accompanied by skin manifestations. Exactly how the gut microbiome is related to skin inflammation and influences the pathophysiology mechanism of skin disorders are still unclear. Many studies have shown a two-way relationship between gut and skin associated with GI health and skin homeostasis and allostasis. This systematic review aimed to explore the associations between the gut microbiome with inflammatory skin disorders, such as acne, psoriasis, atopic dermatitis, and urticaria, and to discover the advanced concept of this relationship. The literature search was limited to any articles published up to December 2020 using PubMed and EBSCOHost. The review followed the PRISMA guidelines for conducting a systematic review. Of the 319 articles screened based on title and abstract, 111 articles underwent full-text screening. Of these, 23 articles met our inclusion criteria, comprising 13 atopic dermatitis (AD), three psoriasis, four acne vulgaris, and four chronic urticaria articles. Acne vulgaris, atopic dermatitis, psoriasis, and chronic urticaria are inflammation skin disorders that were studied recently to ascertain the relationship of these disorders with dysbiosis of the GI microbiome. All acne vulgaris, psoriasis, and chronic urticaria studies stated the association of gut microbiome with skin manifestations. However, the results in atopic dermatitis are still conflicting. Most of the articles agree that Bifidobacterium plays an essential role as anti-inflammation bacteria, and Proteobacteria and Enterobacteria impact inflammation in inflammatory skin disorders.
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Affiliation(s)
- Suci Widhiati
- Departments of Dermatology and Venereology, Faculty of Medicine, Universitas Sebelas Maret/RSUD Dr. Moewardi, Surakarta
| | - Dewajani Purnomosari
- Department of Histology and Cell Biology Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta
| | - Tri Wibawa
- Department of Microbiology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta
| | - Hardyanto Soebono
- Department of Dermatology and Venereology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
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Topical Probiotics: More Than a Skin Deep. Pharmaceutics 2022; 14:pharmaceutics14030557. [PMID: 35335933 PMCID: PMC8955881 DOI: 10.3390/pharmaceutics14030557] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 02/17/2022] [Accepted: 02/22/2022] [Indexed: 02/04/2023] Open
Abstract
Skin, an exterior interface of the human body is home to commensal microbiota and also acts a physical barrier that protects from invasion of foreign pathogenic microorganisms. In recent years, interest has significantly expanded beyond the gut microbiome to include the skin microbiome and its influence in managing several skin disorders. Probiotics play a major role in maintaining human health and disease prevention. Topical probiotics have demonstrated beneficial effects for the treatment of certain inflammatory skin diseases such as acne, rosacea, psoriasis etc., and also found to have a promising role in wound healing. In this review, we discuss recent insights into applications of topical probiotics and their influence on health and diseases of the skin. Patents, commercially available topical probiotics, and novel probiotic impregnated fabrics have been emphasized. A thorough understanding of the relationship between probiotics and the skin microbiome is important for designing novel therapeutic approaches in using topical probiotics.
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Roslund MI, Puhakka R, Nurminen N, Oikarinen S, Siter N, Grönroos M, Cinek O, Kramná L, Jumpponen A, Laitinen OH, Rajaniemi J, Hyöty H, Sinkkonen A. Long-term biodiversity intervention shapes health-associated commensal microbiota among urban day-care children. ENVIRONMENT INTERNATIONAL 2021; 157:106811. [PMID: 34403882 DOI: 10.1016/j.envint.2021.106811] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/17/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND In modern urban environments children have a high incidence of inflammatory disorders, including allergies, asthma, and type1 diabetes. The underlying cause of these disorders, according to the biodiversity hypothesis, is an imbalance in immune regulation caused by a weak interaction with environmental microbes. In this 2-year study, we analyzed bacterial community shifts in the soil surface in day-care centers and commensal bacteria inhabiting the mouth, skin, and gut of children. We compared two different day-care environments: standard urban day-care centers and intervention day-care centers. Yards in the latter were amended with biodiverse forest floor vegetation and sod at the beginning of the study. RESULTS Intervention caused a long-standing increase in the relative abundance of nonpathogenic environmental mycobacteria in the surface soils. Treatment-specific shifts became evident in the community composition of Gammaproteobacteria, Negativicutes, and Bacilli, which jointly accounted for almost 40 and 50% of the taxa on the intervention day-care children's skin and in saliva, respectively. In the year-one skin swabs, richness of Alpha-, Beta-, and Gammaproteobacteria was higher, and the relative abundance of potentially pathogenic bacteria, including Haemophilus parainfluenzae, Streptococcus sp., and Veillonella sp., was lower among children in intervention day-care centers compared with children in standard day-care centers. In the gut, the relative abundance of Clostridium sensu stricto decreased, particularly among the intervention children. CONCLUSIONS This study shows that a 2-year biodiversity intervention shapes human commensal microbiota, including taxa that have been associated with immune regulation. Results indicate that intervention enriched commensal microbiota and suppressed the potentially pathogenic bacteria on the skin. We recommend future studies that expand intervention strategies to immune response and eventually the incidence of immune-mediated diseases.
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Affiliation(s)
- Marja I Roslund
- Ecosystems and Environment Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Niemenkatu 73, FI-15140 Lahti, Finland
| | - Riikka Puhakka
- Ecosystems and Environment Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Niemenkatu 73, FI-15140 Lahti, Finland
| | - Noora Nurminen
- Faculty of Medicine and Health Technology, Tampere University, Arvo Ylpön katu 34, FI-33520 Tampere, Finland
| | - Sami Oikarinen
- Faculty of Medicine and Health Technology, Tampere University, Arvo Ylpön katu 34, FI-33520 Tampere, Finland
| | - Nathan Siter
- Faculty of Built Environment, Tampere University, Korkeakoulunkatu 5, FI-33720 Tampere, Finland
| | - Mira Grönroos
- Ecosystems and Environment Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Niemenkatu 73, FI-15140 Lahti, Finland
| | - Ondřej Cinek
- Department of Pediatrics, Second Faculty of Medicine, Charles University, V Úvalu 84, Praha 5, 150 06 Prague, Czech Republic
| | - Lenka Kramná
- Department of Pediatrics, Second Faculty of Medicine, Charles University, V Úvalu 84, Praha 5, 150 06 Prague, Czech Republic
| | - Ari Jumpponen
- Division of Biology, Kansas State University, Manhattan KS66506, KS, United States of America
| | - Olli H Laitinen
- Faculty of Medicine and Health Technology, Tampere University, Arvo Ylpön katu 34, FI-33520 Tampere, Finland
| | - Juho Rajaniemi
- Faculty of Built Environment, Tampere University, Korkeakoulunkatu 5, FI-33720 Tampere, Finland
| | - Heikki Hyöty
- Faculty of Medicine and Health Technology, Tampere University, Arvo Ylpön katu 34, FI-33520 Tampere, Finland
| | - Aki Sinkkonen
- Natural Resources Institute Finland, Turku, Finland.
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Sharma G, Sharma M, Sood R, Neelamraju J, Lakshmi SG, Madempudi RS, Rishi P, Kaur IP. Self-preserving gelatin emulgel containing whole cell probiotic for topical use: preclinical safety, efficacy, and germination studies. Expert Opin Drug Deliv 2021; 18:1777-1789. [PMID: 34176401 DOI: 10.1080/17425247.2021.1947239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND Dermal disorders, owing to disruption of skin-microflora balance can be served by direct application of probiotics. However, there are few topical whole probiotic products in market because of (i) loss of viability during manufacturing and storage(ii) inadequate germination and retention on skin. Presently we report a novel (IPA 201811010395) emulgel incorporatingBacillus coagulans (Unique IS-2) for possible topical use. METHODS Developed emulgel was characterized for particle size, texture, rheology, morphology, water activity, self-preservation, safety, and stability. RESULTS We successfully incorporated 97 ± 5% (1.7×108CFU/g) Bacillus coagulans in honeycomb network of gelatin nanoparticles (≈600 nm). Maintenance of CFU at 30 ± 2°C, 65 ± 5% RH for 3 months confirmed viability of incorporated probiotic. Low water-activity (0.66-0.732aw) and challenge test (0.05-0.5% viability) confirmed its self-preserving nature. Early initiation (6 h) and complete (24 h) spore germination was evident onrabbit skin. No cytotoxicity, dermal irritation or translocation established its safety. Faster wound closure and reduced oxidative stress (LPO, catalase, SOD, glutathione reductase) in comparison to Soframycin® (1%w/w Framycetin) was observed in excision wound in mice. CONCLUSIONS A whole cell probiotic formulation that is self-preserving, maintains probiotic viability, guarantees germination, and has wound healing properties was successfully formulated.
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Affiliation(s)
- Garima Sharma
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Manuhaar Sharma
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Rishav Sood
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | | | | | | | - Praveen Rishi
- Department of Microbiology, Panjab University, Chandigarh, India
| | - Indu Pal Kaur
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
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12
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Skowron K, Bauza-Kaszewska J, Kraszewska Z, Wiktorczyk-Kapischke N, Grudlewska-Buda K, Kwiecińska-Piróg J, Wałecka-Zacharska E, Radtke L, Gospodarek-Komkowska E. Human Skin Microbiome: Impact of Intrinsic and Extrinsic Factors on Skin Microbiota. Microorganisms 2021; 9:543. [PMID: 33808031 PMCID: PMC7998121 DOI: 10.3390/microorganisms9030543] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 02/28/2021] [Accepted: 03/02/2021] [Indexed: 02/07/2023] Open
Abstract
The skin is the largest organ of the human body and it protects the body from the external environment. It has become the topic of interest of researchers from various scientific fields. Microorganisms ensure the proper functioning of the skin. Of great importance, are the mutual relations between such microorganisms and their responses to environmental impacts, as dysbiosis may contribute to serious skin diseases. Molecular methods, used for microorganism identification, allow us to gain a better understanding of the skin microbiome. The presented article contains the latest reports on the skin microbiota in health and disease. The review discusses the relationship between a properly functioning microbiome and the body's immune system, as well as the impact of internal and external factors on the human skin microbiome.
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Affiliation(s)
- Krzysztof Skowron
- Department of Microbiology, Nicolaus Copernicus University in Toruń, L. Rydygier Collegium Medicum in Bydgoszcz, 85-094 Bydgoszcz, Poland; (Z.K.); (N.W.-K.); (K.G.-B.); (J.K.-P.); (E.G.-K.)
| | - Justyna Bauza-Kaszewska
- Department of Microbiology and Food Technology, UTP University of Science and Technology, 85-029 Bydgoszcz, Poland;
| | - Zuzanna Kraszewska
- Department of Microbiology, Nicolaus Copernicus University in Toruń, L. Rydygier Collegium Medicum in Bydgoszcz, 85-094 Bydgoszcz, Poland; (Z.K.); (N.W.-K.); (K.G.-B.); (J.K.-P.); (E.G.-K.)
| | - Natalia Wiktorczyk-Kapischke
- Department of Microbiology, Nicolaus Copernicus University in Toruń, L. Rydygier Collegium Medicum in Bydgoszcz, 85-094 Bydgoszcz, Poland; (Z.K.); (N.W.-K.); (K.G.-B.); (J.K.-P.); (E.G.-K.)
| | - Katarzyna Grudlewska-Buda
- Department of Microbiology, Nicolaus Copernicus University in Toruń, L. Rydygier Collegium Medicum in Bydgoszcz, 85-094 Bydgoszcz, Poland; (Z.K.); (N.W.-K.); (K.G.-B.); (J.K.-P.); (E.G.-K.)
| | - Joanna Kwiecińska-Piróg
- Department of Microbiology, Nicolaus Copernicus University in Toruń, L. Rydygier Collegium Medicum in Bydgoszcz, 85-094 Bydgoszcz, Poland; (Z.K.); (N.W.-K.); (K.G.-B.); (J.K.-P.); (E.G.-K.)
| | - Ewa Wałecka-Zacharska
- Department of Food Hygiene and Consumer Health, Wrocław University of Environmental and Life Sciences, 31 C.K. Norwida St., 50-375 Wrocław, Poland;
| | - Laura Radtke
- Faculty of Civil and Environmental Engineering and Architecture, UTP University of Science and Technology in Bydgoszcz, Al. prof. S. Kaliskiego 7, 85-796 Bydgoszcz, Poland;
| | - Eugenia Gospodarek-Komkowska
- Department of Microbiology, Nicolaus Copernicus University in Toruń, L. Rydygier Collegium Medicum in Bydgoszcz, 85-094 Bydgoszcz, Poland; (Z.K.); (N.W.-K.); (K.G.-B.); (J.K.-P.); (E.G.-K.)
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13
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Kelly VW, Liang BK, Sirk SJ. Living Therapeutics: The Next Frontier of Precision Medicine. ACS Synth Biol 2020; 9:3184-3201. [PMID: 33205966 DOI: 10.1021/acssynbio.0c00444] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Modern medicine has long studied the mechanism and impact of pathogenic microbes on human hosts, but has only recently shifted attention toward the complex and vital roles that commensal and probiotic microbes play in both health and dysbiosis. Fueled by an enhanced appreciation of the human-microbe holobiont, the past decade has yielded countless insights and established many new avenues of investigation in this area. In this review, we discuss advances, limitations, and emerging frontiers for microbes as agents of health maintenance, disease prevention, and cure. We highlight the flexibility of microbial therapeutics across disease states, with special consideration for the rational engineering of microbes toward precision medicine outcomes. As the field advances, we anticipate that tools of synthetic biology will be increasingly employed to engineer functional living therapeutics with the potential to address longstanding limitations of traditional drugs.
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Affiliation(s)
- Vince W. Kelly
- Department of Bioengineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Benjamin K. Liang
- Department of Bioengineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Shannon J. Sirk
- Department of Bioengineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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14
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Yuan C, Ma Y, Wang Y, Wang X, Qian C, Hocquet D, Zheng S, Mac-Mary S, Humbert P. Rosacea is associated with conjoined interactions between physical barrier of the skin and microorganisms: A pilot study. J Clin Lab Anal 2020; 34:e23363. [PMID: 32419294 PMCID: PMC7521319 DOI: 10.1002/jcla.23363] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/08/2020] [Accepted: 04/16/2020] [Indexed: 12/19/2022] Open
Abstract
Background Rosacea is a common condition characterized by transient or persistent central facial erythema, and often papules and pustules. Currently, the role of bacterium in the development and progression of rosacea remains controversial. This study aimed to investigate the difference in the physiological conditions and microorganisms between the lesional and non‐lesional areas of papulopustular rosacea. Methods Twenty‐five French patients with papulopustular rosacea were enrolled in this pilot study. Each patient was subjected to clinical assessment, and the skin barrier function was tested in lesional and non‐lesional areas. In addition, samples from the lesional and non‐lesional areas were collected for bacterial culturing. Results Of all subjects included in the study, a lower skin conductivity was measured in lesional areas than in non‐lesional areas (43.5 ± 12.4 vs. 57.2 ± 11.6 U, P < .05), and a higher transepidermal water loss (TEWL) value was found in lesional areas than in non‐lesional areas (17.2 ± 5.9 vs. 14.2 ± 4.1 g/(m2 h), P < .05). We found a lower TEWL in lesions in rosacea patients with bacterial dysbiosis than in those with bacterial balance (P < .05). In addition, there were significant differences in the skin conductivity and TEWL between lesional and non‐lesional areas in patients with bacterial dysbiosis (P < .001), and no significant differences were seen in patients with bacterial balance (P < .05). Conclusion The results of the present study demonstrate that the physiological features of rosacea are closely associated with the interactions between the host and the microorganisms.
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Affiliation(s)
- Chao Yuan
- Skin & Cosmetic Research Department, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yafeng Ma
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical College, Xuzhou, China
| | | | - Xiuli Wang
- Department of Phototherapy, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China
| | - Chunyan Qian
- Yuhang Branch of the Second Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Didier Hocquet
- Department of Infection Control, University Hospital of Besançon, France
| | - Shuli Zheng
- Skin & Cosmetic Research Department, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China
| | | | - Philippe Humbert
- Research and Studies Center on the Integument (CERT), Department of Dermatology, Clinical Investigation Center (CIC INSERM 1431), University Hospital of Besançon, Besançon, France.,INSERM UMR1098, FED4234 IBCT, University of Franche-Comté, Besançon, France.,FONDATION Cheikh Khalifa Mohammed VI Casablanca, Casablanca, Morocco
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15
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Bustamante M, Oomah BD, Oliveira WP, Burgos-Díaz C, Rubilar M, Shene C. Probiotics and prebiotics potential for the care of skin, female urogenital tract, and respiratory tract. Folia Microbiol (Praha) 2020; 65:245-264. [PMID: 31773556 PMCID: PMC7090755 DOI: 10.1007/s12223-019-00759-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 11/07/2019] [Indexed: 12/27/2022]
Abstract
The prebiotics and probiotics market is constantly growing due to the positive effects of its consumption on human health, which extends beyond the digestive system. In addition, the synbiotic products market is also expanding due to the synergistic effects between pre- and probiotics that provide additional benefits to consumers. Pre- and probiotics are being evaluated for their effectiveness to treat and prevent infectious diseases in other parts of the human body where microbial communities exist. This review examines the scientific data related to the effects of pre- and probiotics on the treatment of diseases occurring in the skin, female urogenital tract, and respiratory tract. The evidence suggests that probiotics consumption can decrease the presence of eczema in children when their mothers have consumed probiotics during pregnancy and lactation. In women, probiotics consumption can effectively prevent recurrent urinary tract infections. The consumption of synbiotic products can reduce respiratory tract infections and their duration and severity. However, the outcomes of the meta-analyses are still limited and not sufficiently conclusive to support the use of probiotics to treat infectious diseases. This is largely a result of the limited number of studies, lack of standardization of the studies, and inconsistencies between the reported results. Therefore, it is advisable that future studies consider these shortcomings and include the evaluation of the combined use of pre- and probiotics.
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Affiliation(s)
- Mariela Bustamante
- Center of Food Biotechnology and Bioseparations, Scientific and Technological Bioresource Nucleus, BIOREN and Department of Chemical Engineering, Universidad de La Frontera, Ave. Francisco Salazar 01145, Box 54-D,, Temuco, Chile.
| | - B Dave Oomah
- (Retired) Formerly with the National Bioproducts and Bioprocesses Program, Pacific Agri-Food Research Centre, Agriculture and Agri-Food Canada, Summerland, BC V0H 1Z0, Canada
| | - Wanderley P Oliveira
- Faculty of Pharmaceutical Sciences of Ribeirão Preto/FCFRP, Universidade de São Paulo, Ave. do Café, s/n-Bloco Q, Bairro Monte Alegre, Ribeirão Preto-SP, 14040-903,, Brazil
| | - César Burgos-Díaz
- Agriaquaculture Nutritional Genomic Center, CGNA, Las Heras 350, Temuco, Chile
| | - Mónica Rubilar
- Center of Food Biotechnology and Bioseparations, Scientific and Technological Bioresource Nucleus, BIOREN and Department of Chemical Engineering, Universidad de La Frontera, Ave. Francisco Salazar 01145, Box 54-D,, Temuco, Chile
| | - Carolina Shene
- Center of Food Biotechnology and Bioseparations, Scientific and Technological Bioresource Nucleus, BIOREN and Department of Chemical Engineering, Universidad de La Frontera, Ave. Francisco Salazar 01145, Box 54-D,, Temuco, Chile
- Centre for Biotechnology and Bioengineering (CeBiB), Universidad de La Frontera, Temuco, Chile
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16
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Dreno B, Shourick J, Kerob D, Bouloc A, Taïeb C. The role of exposome in acne: results from an international patient survey. J Eur Acad Dermatol Venereol 2020; 34:1057-1064. [DOI: 10.1111/jdv.16119] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 11/13/2019] [Indexed: 12/26/2022]
Affiliation(s)
- B. Dreno
- Department of Dermato‐Cancerology CHU Nantes‐Hôtel‐Dieu CRCINA Inserm 1232, CIC 1413 University of Nantes Nantes France
| | - J. Shourick
- Bio Informatics/statistics University of Paris Sud Paris France
| | - D. Kerob
- Vichy Laboratoire Internationale Levallois‐Perret France
| | | | - C. Taïeb
- EMMA Fontenay‐sous‐Bois France
- Santé Publique CHU Necker‐Enfants malades Paris France
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17
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Li H, Wang Y, Yu Q, Feng T, Zhou R, Shao L, Qu J, Li N, Bo T, Zhou H. Elevation is Associated with Human Skin Microbiomes. Microorganisms 2019; 7:microorganisms7120611. [PMID: 31771258 PMCID: PMC6955857 DOI: 10.3390/microorganisms7120611] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/14/2019] [Accepted: 11/21/2019] [Indexed: 01/04/2023] Open
Abstract
Human skin microbiota plays a crucial role in the defense against pathogens, and is associated with various skin diseases. High elevation is positively correlated with various extreme environmental conditions (i.e., high ultraviolet radiation), which may exert selection pressure on skin microbiota, and therefore influence human health. Most studies regarding skin microbial communities have focused on low-elevation hosts. Few studies have explored skin microbiota in high-elevation humans. Here, we investigated the diversity, function, assembly, and co-occurrence patterns of skin microbiotas from 35 health human subjects across three body sites (forehead, opisthenar, and palm) and seven elevation gradients from 501 to 3431 m. Alpha diversity values (i.e., Shannon diversity and observed operational taxonomic units (OTUs)) decreased with increasing elevation regardless of the body site, while beta diversity (Jaccard and Bray–Curtis dissimilarities) showed an increasing trend with elevation. Elevation is a significant factor that influences human skin microbiota, even after controlling host-related factors. Skin microbiotas at high elevation with more than 3000 m on the Qinghai–Tibet Plateau, had a significant structural or functional separation from those at low elevation with less than 3000 m. Notably, the clustering coefficient, average degree, and network density were all lower at high-elevation than those at low-elevation, suggesting that high-elevation skin networks were more fragile and less connected. Phylogenetic analysis showed that human skin microbiotas are mainly dominated by stochastic processes (58.4%–74.6%), but skin microbiotas at high-elevation harbor a greater portion of deterministic processes than those at low-elevation, indicating that high-elevation may be conducive to the promotion of deterministic processes. Our results reveal that the filtering and selection of the changeable high-elevation environment on the Qinghai–Tibet Plateau may lead to less stable skin microbial community structures.
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Affiliation(s)
- Huan Li
- School of Public Health, Lanzhou University, Lanzhou 730000, China
- Key Laboratory of Restoration Ecology of Cold Area in Qinghai Province, Northwest Institute of Plateau Biology Chinese Academy of Sciences, Xining 810008, China
- Correspondence: (H.L.); (J.Q.)
| | - Yijie Wang
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Qiaoling Yu
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Tianshu Feng
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Rui Zhou
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Liye Shao
- Key Laboratory of Health Aquaculture and Product Processing in Dongting Lake Area of Hunan Province, Zoology Key Laboratory of Hunan Higher Education, Hunan University of Arts and Science, Hunaan Changde 415000, China
| | - Jiapeng Qu
- Key Laboratory of Restoration Ecology of Cold Area in Qinghai Province, Northwest Institute of Plateau Biology Chinese Academy of Sciences, Xining 810008, China
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai 810008, China
- Correspondence: (H.L.); (J.Q.)
| | - Nan Li
- Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning Normal University, 175 Mingxiu East Road, Nanning, Guangxi 530001, China
| | - Tingbei Bo
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Huakun Zhou
- Key Laboratory of Restoration Ecology of Cold Area in Qinghai Province, Northwest Institute of Plateau Biology Chinese Academy of Sciences, Xining 810008, China
- Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai 810008, China
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18
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Abstract
Modern ideas about the etiological factors underlying a rare, serious illness — fulminant acne, the influence of genetic and exposure factors on the formation of the disease, and the pathogenesis of this form of acne are described. The main pathogenetic factors affecting the debut and course of fulminant acne were identified: Cutibacterium and the microbiome of the skin as a whole; sebum overproduction of sebum with the direct participation of dihydrotestosterone, progesterone, insulin-like growth factor-1; features of innate immunity, follicular hyperkeratosis. The clinic, complications and optimal therapeutic tactics at the present stage are described. A clinical case with a successful therapeutic outcome is presented.
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Affiliation(s)
- M. B. Drozhdina
- Kirov State Medical University, Ministry of Health of the Russian Federation
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19
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Costa EM, Silva S, Veiga M, Tavaria FK, Pintado MM. Exploring chitosan nanoparticles as effective inhibitors of antibiotic resistant skin microorganisms - From in vitro to ex vitro testing. Carbohydr Polym 2018; 201:340-346. [PMID: 30241827 DOI: 10.1016/j.carbpol.2018.08.083] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 06/07/2018] [Accepted: 08/20/2018] [Indexed: 01/02/2023]
Abstract
Nowadays, nosocomial skin infections are increasingly harder to manage and control. In the search for new, natural compounds capable of being alternatives to traditional antibiotics, chitosan and its nanoparticles, have garnered attention. This work sought to understand the potential of chitosan NPs in the management of infections caused by MDR skin pathogens in planktonic and sessile assays. Additionally, NPs' capacity to inhibit biofilm quorum sensing and prevent HaCat infections was also evaluated. The results obtained showed that chitosan NPs had an average size and charge of 226.6 ± 5.24 nm and +27.1 ± 3.09 mV. Inhibitory and bactericidal concentrations varied between 1 and 2 mg/mL and 2-7 mg/mL, respectively. Chitosan NPs effectively inhibited biofilm growth for all microorganisms and possessed strong anti-quorum sensing activity. Lastly, chitosan NPs proved to be effective interfere with A. baumannii's infection of HaCat cells, as they significantly reduced intracellular and extracellular bacterial counts.
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Affiliation(s)
- Eduardo M Costa
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, 172, 4200-374 Porto, Portugal
| | - Sara Silva
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, 172, 4200-374 Porto, Portugal
| | - Mariana Veiga
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, 172, 4200-374 Porto, Portugal
| | - Freni K Tavaria
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, 172, 4200-374 Porto, Portugal
| | - Maria M Pintado
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, 172, 4200-374 Porto, Portugal.
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20
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Costa EM, Silva S, Veiga M, Tavaria FK, Pintado MM. Chitosan’s biological activity upon skin-related microorganisms and its potential textile applications. World J Microbiol Biotechnol 2018; 34:93. [DOI: 10.1007/s11274-018-2471-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 06/04/2018] [Indexed: 10/14/2022]
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21
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Clatici VG, Satolli F, Tatu AL, Voicu C, Draganita AMV, Lotti T. Butterfly Effect - the Concept and the Implications in Dermatology, Acne, and Rosacea. MAEDICA 2018; 13:89-94. [PMID: 30069233 PMCID: PMC6060293 DOI: 10.26574/maedica.2018.13.2.89] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Acne and Rosacea are chronic inflammatory skin diseases with an increasing frequency and an important negative impact on the quality of life, which are associated with a large number of false myths regarding causes and treatment. The butterfly effect is associated with chaos theory, and it is a concept originated in meteorology, which represents the dependence on initial conditions.
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Affiliation(s)
- Victor Gabriel Clatici
- Department of Dermatology and Regenerative Medicine, CSRMR, University of Rome Guglielmo Marconi, Rome, Italy
| | | | - Alin Laurentiu Tatu
- Faculty of Medicine and Pharmacy, "Dunarea de Jos" University of Galati, Romania
| | | | | | - Torello Lotti
- Department of Dermatology and Regenerative Medicine, CSRMR, University of Rome Guglielmo Marconi, Rome, Italy
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22
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Ndiaye C, Bassène H, Cadoret F, Raoult D, Lagier JC, Sokhna C. 'Citricoccus massiliensis' sp. nov., a new bacterial species isolated from human skin by culturomics. New Microbes New Infect 2018; 23:83-85. [PMID: 29692910 PMCID: PMC5913060 DOI: 10.1016/j.nmni.2018.02.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 01/31/2018] [Accepted: 02/09/2018] [Indexed: 12/22/2022] Open
Abstract
We report the main characteristics of 'Citricoccus massiliensis'strain Marseille-P4330, a new species within the genus Citricoccus. This strain was isolated from the skin of a healthy human man living in Dielmo, Senegal, Western Africa.
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Affiliation(s)
- C Ndiaye
- Aix-Marseille Université, IRD (Dakar, Marseille, Papeete), AP-HM, IHU-Méditerranée Infection, UMR Vecteurs-Infections Tropicales et Méditerranéennes (VITROME), France
| | - H Bassène
- Aix-Marseille Université, IRD (Dakar, Marseille, Papeete), AP-HM, IHU-Méditerranée Infection, UMR Vecteurs-Infections Tropicales et Méditerranéennes (VITROME), France
| | - F Cadoret
- Aix-Marseille Université, IRD, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - D Raoult
- Aix-Marseille Université, IRD, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - J C Lagier
- Aix-Marseille Université, IRD, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - C Sokhna
- Aix-Marseille Université, IRD (Dakar, Marseille, Papeete), AP-HM, IHU-Méditerranée Infection, UMR Vecteurs-Infections Tropicales et Méditerranéennes (VITROME), France
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23
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Dréno B, Bettoli V, Araviiskaia E, Sanchez Viera M, Bouloc A. The influence of exposome on acne. J Eur Acad Dermatol Venereol 2018; 32:812-819. [PMID: 29377341 PMCID: PMC5947266 DOI: 10.1111/jdv.14820] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 01/10/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Acne vulgaris is one of the main reasons for dermatological consultations. Severity and response to treatment may be impacted by various external factors or exposome. AIM To assess the impact of environmental factors on acne and to provide a comprehensive overview of the acne exposome. METHODS Two consensus meetings of five European dermatologists and a comprehensive literature search on exposome factors triggering acne served as a basis for this review. RESULTS Acne exposome was defined as the sum of all environmental factors influencing the occurrence, duration and severity of acne. Exposome factors impact on the response and the frequency of relapse to treatments by interacting with the skin barrier, sebaceous gland, innate immunity and cutaneous microbiota. They may be classified into the following six main categories: nutrition, psychological and lifestyle factors, occupational factors including cosmetics, as well as pollutants, medication and climatic factors. Moreover, practical considerations for the dermatologist's clinical practice are proposed. CONCLUSION Exposome factors including nutrition, medication, occupational factors, pollutants, climatic factors, and psychosocial and lifestyle factors may impact on the course and severity of acne and on treatment efficacy. Identifying and reducing the impact of exposome is important for an adequate acne disease management.
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Affiliation(s)
- B Dréno
- Service de Dermatologie, CIC 1413, CRCINA Inserm 1232, University Hospital Nantes, Nantes, France
| | - V Bettoli
- Department of Clinical and Experimental Medicine, Azienda Ospedaliero-Universitaria di Ferrara, Ferrara, Italy
| | - E Araviiskaia
- Department of Dermatology, First Pavlov State Medical University of St. Petersburg, St. Petersburg, Russia
| | - M Sanchez Viera
- Skin Health, Aging and Cancer, Institute for Dermatology, Madrid, Spain
| | - A Bouloc
- Laboratoires Vichy, Levallois Perret, France
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24
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Wardhani, S., Ridho, M. R., Arinafril, Arita, S., Ngudiantoro. Consortium of heterotrophic nitrification bacteria Bacillus sp. and its application on urea fertilizer industrial wastewater treatment. MALAYSIAN JOURNAL OF MICROBIOLOGY 2017. [DOI: 10.1016/s1773-035x(15)72824-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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25
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Conti F, Ceccarelli F, Iaiani G, Perricone C, Giordano A, Amori L, Miranda F, Massaro L, Pacucci VA, Truglia S, Girelli G, Fakeri A, Taliani G, Temperoni C, Spinelli FR, Alessandri C, Valesini G. Association between Staphylococcus aureus nasal carriage and disease phenotype in patients affected by systemic lupus erythematosus. Arthritis Res Ther 2016; 18:177. [PMID: 27475749 PMCID: PMC4967505 DOI: 10.1186/s13075-016-1079-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 07/15/2016] [Indexed: 11/10/2022] Open
Abstract
Background Staphylococcus aureus (SA) is a commensal bacterium representing one of the most important components of the skin microbiome, mostly isolated in the anterior nares. A higher rate of SA nasal colonization in patients affected by Wegener’s granulomatosis and rheumatoid arthritis compared with healthy subjects (HS) has been described. No studies focusing on systemic lupus erythematosus (SLE) are available. We aimed at analyzing the prevalence of SA nasal carriers in an SLE cohort and evaluating correlation between nasal colonization and clinical, laboratory and therapeutic features. Methods We enrolled 84 patients with SLE (number of male/female patients 6/78; mean age 41.3 ± 12.2 years, mean disease duration 142.1 ± 103.8 months) and 154 HS blood donors. Patients with SLE underwent a physical examination and the clinical/laboratory data were collected. All the patients with SLE and the HS received a nasal swab for SA isolation and identification. Results SA nasal colonization prevalence was 21.4 % in patients with SLE and 28.6 % in HS (P not significant). We analyzed patients with SLE according to the presence (n = 18, SA-positive SLE) or the absence (n = 66, SA-negative SLE) of nasal colonization. Renal involvement was significantly more frequent in SA-positive SLE (11.6 % vs 3.0 %; P = 0.0009). Moreover, the presence of anti-dsDNA, anti-Sm, anti-SSA, anti-SSB, anti-RNP antibodies was significantly higher in SA-positive SLE (P < 0.0001, P = 0.01, P = 0.008, P = 0.03, P = 0.03, respectively). Conclusion SA colonization is a relatively frequent condition in patients with SLE, with a frequency similar to HS. The presence of SA seems associated with a peculiar SLE phenotype characterized by renal manifestations and autoantibody positivity, confirming the role of the microbiome in disease phenotype.
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Affiliation(s)
- Fabrizio Conti
- Lupus Clinic, Dipartimento di Medicina Interna e Specialità Medica, Sapienza Università di Roma, Viale del Policlinico 155, 00161, Rome, Italy
| | - Fulvia Ceccarelli
- Lupus Clinic, Dipartimento di Medicina Interna e Specialità Medica, Sapienza Università di Roma, Viale del Policlinico 155, 00161, Rome, Italy
| | - Giancarlo Iaiani
- DAI Malattie Infettive e Tropicali, Azienda Policlinico Umberto I, Rome, Italy
| | - Carlo Perricone
- Lupus Clinic, Dipartimento di Medicina Interna e Specialità Medica, Sapienza Università di Roma, Viale del Policlinico 155, 00161, Rome, Italy
| | - Alessandra Giordano
- Sanità Pubblica e Malattie Infettive, Sapienza Università di Roma, Rome, Italy
| | - Luigino Amori
- Sanità Pubblica e Malattie Infettive, Sapienza Università di Roma, Rome, Italy
| | - Francesca Miranda
- Lupus Clinic, Dipartimento di Medicina Interna e Specialità Medica, Sapienza Università di Roma, Viale del Policlinico 155, 00161, Rome, Italy
| | - Laura Massaro
- Lupus Clinic, Dipartimento di Medicina Interna e Specialità Medica, Sapienza Università di Roma, Viale del Policlinico 155, 00161, Rome, Italy
| | - Viviana Antonella Pacucci
- Lupus Clinic, Dipartimento di Medicina Interna e Specialità Medica, Sapienza Università di Roma, Viale del Policlinico 155, 00161, Rome, Italy
| | - Simona Truglia
- Lupus Clinic, Dipartimento di Medicina Interna e Specialità Medica, Sapienza Università di Roma, Viale del Policlinico 155, 00161, Rome, Italy
| | - Gabriella Girelli
- UOC Immunoematologia e Medicina Trasfusionale, Azienda Policlinico Umberto I, Rome, Italy
| | - Azis Fakeri
- UOC Immunoematologia e Medicina Trasfusionale, Azienda Policlinico Umberto I, Rome, Italy
| | - Gloria Taliani
- Dipartimento Medicina Clinica, Sapienza Università di Roma, Rome, Italy
| | - Chiara Temperoni
- Dipartimento Medicina Clinica, Sapienza Università di Roma, Rome, Italy
| | - Francesca Romana Spinelli
- Lupus Clinic, Dipartimento di Medicina Interna e Specialità Medica, Sapienza Università di Roma, Viale del Policlinico 155, 00161, Rome, Italy
| | - Cristiano Alessandri
- Lupus Clinic, Dipartimento di Medicina Interna e Specialità Medica, Sapienza Università di Roma, Viale del Policlinico 155, 00161, Rome, Italy.
| | - Guido Valesini
- Lupus Clinic, Dipartimento di Medicina Interna e Specialità Medica, Sapienza Università di Roma, Viale del Policlinico 155, 00161, Rome, Italy
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Josephs-Spaulding J, Beeler E, Singh OV. Human microbiome versus food-borne pathogens: friend or foe. Appl Microbiol Biotechnol 2016; 100:4845-63. [PMID: 27102132 DOI: 10.1007/s00253-016-7523-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 03/30/2016] [Accepted: 04/03/2016] [Indexed: 12/16/2022]
Abstract
As food safety advances, there is a great need to maintain, distribute, and provide high-quality food to a much broader consumer base. There is also an ever-growing "arms race" between pathogens and humans as food manufacturers. The human microbiome is a collective organ of microbes that have found community niches while associating with their host and other microorganisms. Humans play an important role in modifying the environment of these organisms through their life choices, especially through individual diet. The composition of an individual's diet influences the digestive system-an ecosystem with the greatest number and largest diversity of organisms currently known. Organisms living on and within food have the potential to be either friends or foes to the consumer. Maintenance of this system can have multiple benefits, but lack of maintenance can lead to a host of chronic and preventable diseases. Overall, this dynamic system is influenced by intense competition from food-borne pathogens, lifestyle, overall diet, and presiding host-associated microbiota.
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Affiliation(s)
- Jonathan Josephs-Spaulding
- Division of Biological and Health Sciences, University of Pittsburgh, 300 Campus Drive, Bradford, PA, 16701, USA
| | - Erik Beeler
- Division of Biological and Health Sciences, University of Pittsburgh, 300 Campus Drive, Bradford, PA, 16701, USA
| | - Om V Singh
- Division of Biological and Health Sciences, University of Pittsburgh, 300 Campus Drive, Bradford, PA, 16701, USA.
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Aripova ML, Khardikova SA. Phycoemotional state of the patients with severe acne associated with isotretinoin therapy. VESTNIK DERMATOLOGII I VENEROLOGII 2015. [DOI: 10.25208/0042-4609-2015-91-5-122-127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Progression of phycoemotional state of 22 patients with severe acne was assessed based on changes in rates of CADI, APSEA, DSQL. Monotherapy with isotretinoin (Acnecutan) is effective in treating severe acne resistant to therapy providing stable remission which is shown by decrease in rates of CADI, APSEA, DSQL.
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Bacterial Landscape of Bloodstream Infections in Neutropenic Patients via High Throughput Sequencing. PLoS One 2015; 10:e0135756. [PMID: 26270467 PMCID: PMC4536222 DOI: 10.1371/journal.pone.0135756] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 07/25/2015] [Indexed: 12/20/2022] Open
Abstract
Background Bloodstream infection (BSI) is a common and potentially life-threatening complication in patients with hematological malignancies and therapy-induced neutropenia. Administration of broad spectrum antibiotics has substantially decreased the mortality rate in febrile neutropenia, but bacterial infection is documented in only one-third or fewer of the cases. BSI is typically diagnosed by blood culture; however, this method can detect only culturable pathogens. Methods In the present study, a total of 130 blood samples from hematological patients receiving dose-intensive antitumoural treatment were subjected to 16S rRNA PCR and 62 of them were cultured. PCR positive samples were processed to high throughput sequencing by amplifying the V1-V3 regions of the 16S rRNA gene to obtain a full spectrum of bacteria present in BSI. Results Five phyla and 30 genera were identified with sequencing compared to 2 phyla and 4 genera with culture. The largest proportion of bacteria detected by sequencing belonged to Proteobacteria (55.2%), Firmicutes (33.4%) and Actinobacteria (8.6%), while Fusobacteria (0.4%) and Bacteroidetes (0.1%) were also detected. Ninety-eight percent of the bacteria identified by sequencing were opportunistic human pathogens and 65% belonged to the normal human microbiota. Conclusions The present study indicates that BSIs in neutropenic hosts contain a much broader diversity of bacteria, likely with host origin, than previously realized. The elevated ratio of Proteobacteria in BSI corroborates the results found in other systemic inflammatory diseases, such as inflammatory bowel disease or mucosal infections. This knowledge may become of value for tailoring antimicrobial drug administration.
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Ryu S, Han HM, Song PI, Armstrong CA, Park Y. Suppression of Propionibacterium acnes Infection and the Associated Inflammatory Response by the Antimicrobial Peptide P5 in Mice. PLoS One 2015. [PMID: 26197393 PMCID: PMC4510379 DOI: 10.1371/journal.pone.0132619] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The cutaneous inflammation associated with acne vulgaris is caused by the anaerobic bacterium Propionibacterium acnes through activation of the innate immune system in the skin. Current standard treatments for acne have limitations that include adverse effects and poor efficacy in many patients, making development of a more effective therapy highly desirable. In the present study, we demonstrate the protective effects of a novel customized α-helical cationic peptide, P5, against P. acnes-induced inflammatory responses in vitro and in vivo. Application of P5 significantly reduced expression of two inflammatory cytokines IL-8 and TNF-α in P. acnes-treated primary human keratinocytes, where P5 appeared to act in part by binding to bacterial lipoteichoic acid, thereby suppressing TLR2-to-NF-κB signaling. In addition, in a mouse model of acne vulgaris, P5 exerted both anti-inflammatory and antimicrobial effects against P. acnes, but exerted no cytotoxic effects against skin cells. These results demonstrate that P5, and perhaps other cationic antimicrobial peptides, offer the unique ability to reduce numbers P. acnes cells in the skin and to inhibit the inflammation they trigger. This suggests these peptides could potentially be used to effectively treat acne without adversely affecting the skin.
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Affiliation(s)
- Sunhyo Ryu
- Department of Biomedical Science, Chosun University, Gwangju, Korea
| | - Hyo Mi Han
- Department of Biomedical Science, Chosun University, Gwangju, Korea
| | - Peter I. Song
- Department of Dermatology, University of Colorado Denver Anschutz Medical Campus, Aurora, Colorado, United States of America
| | - Cheryl A. Armstrong
- Department of Dermatology, University of Colorado Denver Anschutz Medical Campus, Aurora, Colorado, United States of America
- * E-mail: (YP); (CA)
| | - Yoonkyung Park
- Department of Biomedical Science, Chosun University, Gwangju, Korea
- Research Center for Proteineous Materials, Chosun University, Gwangju, Korea
- * E-mail: (YP); (CA)
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30
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Cassir N, Papazian L, Fournier PE, Raoult D, La Scola B. Insights into bacterial colonization of intensive care patients' skin: the effect of chlorhexidine daily bathing. Eur J Clin Microbiol Infect Dis 2015; 34:999-1004. [PMID: 25604707 DOI: 10.1007/s10096-015-2316-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 01/07/2015] [Indexed: 01/19/2023]
Abstract
Skin is a major reservoir of bacterial pathogens in intensive care unit (ICU) patients. The aim of this study was to assess the skin bacterial richness and diversity in ICU patients and the effect of CHG daily bathing on skin microbiota. Twenty ICU patients were included during an interventional period with CHG daily bathing (n = 10) and a control period (n = 10). At day seven of hospitalization, eight skin swab samples (nares, axillary vaults, inguinal creases, manubrium and back) were taken from each patient. The bacterial identification was performed by microbial culturomics. We used the Shannon index to compare the diversity. We obtained 5,000 colonies that yielded 61 bacterial species (9.15 ± 3.7 per patient), including 15 (24.5 %) that had never been cultured from non-pathological human skin before, and three (4.9 %) that had never been cultured from human samples before. Notably, Gram-negative bacteria were isolated from all sites. In the water-and-soap group, there was a higher risk of colonization with Gram-negative bacteria (OR = 6.05, 95 % CI [1.67-21.90]; P = 0.006). In the CHG group, we observed more patients colonized by sporulating bacteria (9/10 vs. 3/10; P = 0.019) with a reduced skin bacterial richness (P = 0.004) and lower diversity (0.37, 95 % CI [0.33; 0.42] vs. 0.50, 95 % CI [0.48; 0.52]). Gram-negative bacteria are frequent and disseminated components of the transient skin flora in ICU patients. CHG daily bathing is associated with a reduction in Gram-negative bacteria colonization together with substantial skin microbiota shifts.
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Affiliation(s)
- N Cassir
- Unité de Recherche sur les Maladies Infectieuses Tropicales et Emergentes, URMITE, UM63, CNRS 7278, IRD 198, INSERM 1095, Méditerranée-Infection, Aix-Marseille-Université, Marseille, France
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31
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Wu X, Xu F. Dendritic cells during Staphylococcus aureus infection: subsets and roles. J Transl Med 2014; 12:358. [PMID: 25519813 PMCID: PMC4279898 DOI: 10.1186/s12967-014-0358-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 12/10/2014] [Indexed: 12/22/2022] Open
Abstract
Dendritic cells (DCs) are professional antigen-presenting cells (APCs) that play a crucial role in both innate and adaptive immune responses. DCs orient the immune responses by modulating the balance between protective immunity to pathogens and tolerance to self-antigens. Staphylococcus aureus (S. aureus) is a common member of human skin microbiota and can cause severe infections with significant morbidity and mortality. Protective immunity to pathogens by DCs is required for clearance of S. aureus. DCs sense the presence of the staphylococcal components using pattern recognition receptors (PRRs) and then orchestrate immune systems to resolve infections. This review summarizes the possible roles of DCs, in particular their Toll-like receptors (TLRs) involved in S. aureus infection and strategies by which the pathogen affects activation and function of DCs.
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Affiliation(s)
- Xuejie Wu
- Department of Infectious Diseases, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China.
| | - Feng Xu
- Department of Infectious Diseases, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China.
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Abstract
This review discusses the role of pre- and probiotics with respect to improving skin health by modulating the cutaneous microbiota. The skin ecosystem is a complex environment covered with a diverse microbiota community. These are classified as either transient or resident, where some are considered as beneficial, some essentially neutral and others pathogenic or at least have the capacity to be pathogenic. Colonisation varies between different parts of the body due to different environmental factors. Pre- and probiotic beneficial effects can be delivered topically or systemically (by ingestion). The pre- and probiotics have the capacity to optimise, maintain and restore the microbiota of the skin in different ways. Topical applications of probiotic bacteria have a direct effect at the site of application by enhancing the skin natural defence barriers. Probiotics as well as resident bacteria can produce antimicrobial peptides that benefit cutaneous immune responses and eliminate pathogens. In cosmetic formulations, prebiotics can be applied to the skin microbiota directly and increase selectively the activity and growth of beneficial 'normal' skin microbiota. Little is known about the efficacy of topically applied prebiotics. Nutritional products containing prebiotics and/or probiotics have a positive effect on skin by modulating the immune system and by providing therapeutic benefits for atopic diseases. This review underlines the potential use of pre- and probiotics for skin health.
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Affiliation(s)
- F H Al-Ghazzewi
- Glycologic Limited, 70 Cowcaddens Road, Glasgow, G4 0BA, United Kingdom
| | - R F Tester
- Glycologic Limited, 70 Cowcaddens Road, Glasgow, G4 0BA, United Kingdom
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Esmaeili H, Halimi M, Hagigi A. Gastrointestinal Dysfunction Symptoms and Lipids Profile in Patients with Various Severities of Acne Vulgaris. JOURNAL OF MEDICAL SCIENCES 2014. [DOI: 10.3923/jms.2014.130.136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Morán A, Gutiérrez S, Martínez-Blanco H, Ferrero MA, Monteagudo-Mera A, Rodríguez-Aparicio LB. Non-toxic plant metabolites regulate Staphylococcus viability and biofilm formation: a natural therapeutic strategy useful in the treatment and prevention of skin infections. BIOFOULING 2014; 30:1175-1182. [PMID: 25397362 DOI: 10.1080/08927014.2014.976207] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In the present study, the efficacy of generally recognised as safe (GRAS) antimicrobial plant metabolites in regulating the growth of Staphylococcus aureus and S. epidermidis was investigated. Thymol, carvacrol and eugenol showed the strongest antibacterial action against these microorganisms, at a subinhibitory concentration (SIC) of ≤ 50 μg ml(-1). Genistein, hydroquinone and resveratrol showed antimicrobial effects but with a wide concentration range (SIC = 50-1,000 μg ml(-1)), while catechin, gallic acid, protocatechuic acid, p-hydroxybenzoic acid and cranberry extract were the most biologically compatible molecules (SIC ≥ 1000 μg ml(-1)). Genistein, protocatechuic acid, cranberry extract, p-hydroxybenzoic acid and resveratrol also showed anti-biofilm activity against S. aureus, but not against S. epidermidis in which, surprisingly, these metabolites stimulated biofilm formation (between 35% and 1,200%). Binary combinations of cranberry extract and resveratrol with genistein, protocatechuic or p-hydroxibenzoic acid enhanced the stimulatory effect on S. epidermidis biofilm formation and maintained or even increased S. aureus anti-biofilm activity.
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Affiliation(s)
- A Morán
- a Departamento de Biología Molecular, Facultad de Veterinaria , Universidad de León , León , Spain
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