scholarly journals The First Report of Diversity Analyses of Skin Microbiome In Indonesian Leprosy Patient

2020 ◽  
Author(s):  
Hendra Gunawan ◽  
Pati Aji Achdiat ◽  
Oki Suwarsa ◽  
Dhaifina Alkatirie ◽  
Endang Sutedja ◽  
...  
Keyword(s):  
Skin Diseases ◽  
Normal Skin ◽  
Alpha Diversity ◽  
Skin Lesions ◽  
Protective Role ◽  
Leprosy Patient ◽  
Skin Microbiome ◽  
Healthy Individuals ◽  
Microbiome Profile ◽  
Leprosy Patients

Abstract BackgroundSkin microbiome is quiet diverse. There are several factors influencing the skin microbiome, such as skin diseases. However, the effects of leprosy on the skin microbiome remain unclear and there are only a few studies about skin microbiome on leprosy. The aim of this study was to investigate the alpha diversity of skin microbiome on lesional site of multibacillary (MB) leprosy patients who visited the top referral hospital in West Java Indonesia. Here in this study we characterize the skin microbiome in leprosy patient in compared to healthy individual by using next generation 16S rRNA sequencing. A total 18 skin swab samples were collected from 18 samples (14 leprosy patients, 4 healthy individuals).ResultsTaxonomic analysis of leprous skin lesions revealed main five phyla: Proteobacteria, Actinobacteria, Firmicutes, Bacteroidetes, and Cyanobacteria. Proteobacteria and Firmicutes were overrepresented in leprosy patients, while Actinobacteria, Bacteroidetes, and Cyanobacteria were diminished in leprosy patients compared to healthy individuals. The main five genera in leprous skin lesions were Staphylococcus, Acinetobacter, Corynebacterium, Micrococcus, and Propionibacterium. Staphylococcus, Acinetobacter, and Micrococcus were enriched in leprosy patients, while Corynebacterium and Propionibacterium which have a protective role in normal skin, were diminished in leprosy patients when compared with healthy individuals. Twenty-five species were found in leprous skin lesions that were not typical in human skin and considered as potentially pathogenic. The alpha diversity analysis showed that leprous skin lesions is less diverse than that of the healthy skin microbiome.ConclusionAs a conclusion, the skin microbiome on lesional site of leprosy patient show alteration and less diverse compare to healthy individuals. This suggest that leprosy can affects skin microbiome profile or otherwise.

Stability of Skin Microbiome at Sacral Regions of Healthy Young Adults, Ambulatory Older Adults, and Bedridden Older Patients After 2 Years

2020 ◽  
Vol 23 (1) ◽  
pp. 82-90
Author(s):  
Kazuhiro Ogai ◽  
Kohei Ogura ◽  
Nozomi Ohgi ◽  
Seohui Park ◽  
Miku Aoki ◽  
...  
Keyword(s):  
Older Adults ◽  
Young Adults ◽  
Older Patients ◽  
Normal Skin ◽  
Alpha Diversity ◽  
Transepidermal Water Loss ◽  
Skin Care ◽  
Skin Microbiome ◽  
Physiological Functions ◽  
Sacral Region

Objective: The sacral skin of bedridden older patients often develops a dysbiotic condition. To clarify whether the condition changes or is sustained over time, we analyzed the skin microbiome and the skin physiological functions of the sacral skin in patients who completed our 2017 study. Methods: In 2019, we collected the microbiome on the sacral region and measured sacral skin hydration, pH, and transepidermal water loss from 7 healthy young adults, 10 ambulatory older adults, and 8 bedridden older patients, all of whom had been recruited for the 2017 study. For microbiome analysis, 16S ribosomal RNA-based metagenomic analysis was used. Results: No significant differences in the microbial compositions or any alpha diversity metrics were found in the bedridden older patients between the 2017 and 2019 studies; the higher gut-related bacteria were still observed on the sacral skin of the bedridden older patients even after 2 years. Only skin pH showed a significant decrease, approaching normal skin condition, in the bedridden older patients over 2 years. Conclusion: This study indicated that gut-related bacteria stably resided in the sacral skin in bedridden patients, even if the patient had tried to restore skin physiological functions using daily skin care. We propose the importance of skin care that focuses more on bacterial decontamination for the sacral region of bedridden older patients, in order to decrease the chances of skin/wound infection and inflammation.

scholarly journals Basophil Recruitment to Skin Lesions of Patients with Systemic Lupus Erythematosus Mediated by CCR1 and CCR2

2017 ◽  
Vol 43 (2) ◽  
pp. 832-839 ◽  
Author(s):  
Qingjun Pan ◽  
Yongmin Feng ◽  
Yanxia Peng ◽  
Hongjiu Zhou ◽  
Zhenzhen Deng ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Lupus Erythematosus ◽  
Migration Rate ◽  
Skin Diseases ◽  
Normal Skin ◽  
Flow Cytometric Analysis ◽  
Skin Lesions ◽  
Skin Tissue ◽  
Systemic Lupus

Background/Aims: Basophils have been reported to infiltrate skin lesions in various skin diseases, but not in systemic lupus erythematosus (SLE). This study investigated basophil infiltration in SLE and its mechanism. Methods: Twenty newly diagnosed SLE patients and twenty healthy controls were enrolled. Nine SLE patients underwent skin biopsies. Flow cytometric analysis the phenotype of peripheral basophils and their migration rate toward RANTES and MCP-1 were analyzed with the transwell culture system, also the expression of these two chemokines in skin tissue were analyzed with immunohistochemistry. Results: Increased activation and decreased numbers of peripheral basophils were observed in SLE patients compared with controls. Basophil migration into skin lesions of SLE patients were observed, but not in normal skin tissue. This migration was related to the upregulation of chemokine receptors CCR1 and CCR2 on basophils. In vitro studies showed that migration rate toward RANTES and MCP-1 increased significantly in basophils from SLE patients compared with those from controls. Consistently, high levels of RANTES and MCP-1 expression were observed in skin lesions from SLE patients but not in normal skin tissue. Conclusion: Basophil recruitment to skin lesions of SLE patients mediated by CCR1 and CCR2, which may contribute to tissue damage in SLE.

scholarly journals Profiling Skin Microbiome in Healthy Young Adult Representing Javanese, Papuans, and Chinese Descent in Indonesia

2021 ◽  
Vol 28 (4) ◽  
pp. 249-261
Author(s):  
Stella Vania ◽  
Amarila Malik
Keyword(s):  
Skin Diseases ◽  
Geographical Location ◽  
Alpha Diversity ◽  
Ethnic Origin ◽  
Skin Microbiome ◽  
Microbiota Composition ◽  
Skin Microbiota ◽  
Pathogen Invasion ◽  
Chinese Descent ◽  
Microbiome Research

Skin serves as the first physical barrier and biological barrier by the colonization of commensal bacteria to prevent pathogen invasion. It was known that the disruption on normal commensal microbiota composition or dysbiosis causes skin diseases, while the skin microbiota diversity itself is influenced by several factors, one of them is ethnicity. This study shows the influence of ethnicity factor in Papuans, Javanese, and Chinese descent young adults living in Jakarta on skin microbiome profiles. The microbiota genomic DNA are extracted from the face skin samples and sequenced with Next Generation Sequencing method to be further analyzed. The result shows that individuals with the same ethnic background share similar skin microbiome characteristics. The greatest skin microbiome alpha diversity is shown by the Papuans and the Chinese descent the smallest. Ethnicity factor that shows statistically significant differences in interindividual dissimilarities are independent of other intriguing factors such as age, geographical location, etc. Therefore the ethnic origin of individuals especially from three ethnics above is a factor to be considered in skin microbiome research and the skin microbiota composition can be used for potential future applications.

scholarly journals ZnO NPs delay the recovery of psoriasis-like skin lesions through promoting inflammation and keratinocyte apoptosis via nuclear translocation of phosphorylated NF-κB p65 and cysteine deficiency

2020 ◽  
Author(s):  
Xuan Lai ◽  
Menglei Wang ◽  
Yixia Zhu ◽  
Xiaoli Feng ◽  
Huimin Liang ◽  
...  
Keyword(s):  
Skin Diseases ◽  
Nuclear Translocation ◽  
Normal Skin ◽  
Redox Homeostasis ◽  
Skin Lesions ◽  
Zno Nps ◽  
Inflammatory Skin Diseases ◽  
Tnf Α ◽  
Jnk Inhibitors

Abstract Background This study aimed to confirm the safety and risk of applying zinc oxide nanoparticles (ZnO NPs) to pathological skin, such as psoriasis-like skin. The majority of previous studies confirmed the safety of applying ZnO NPs to normal skin. However, we know very little about the risks of using sunscreen, cosmetics and topical drugs containing ZnO NPs for individuals with skin diseases. In addition, some studies claimed that ZnO NPs can penetrate normal or pathological skin, and ZnO NPs have frequently been reported to have proinflammatory and lethal effects in vitro. Therefore, it is necessary to evaluate the safety of applying ZnO NPs to pathological skin. Results ZnO NPs passed through gaps between keratinocytes and entered stratum basale of epidermis and dermis in imiquimod (IMQ)-induced psoriasis-like skin lesions. Application of a ZnO NP-containing suspension for 3 connective days delayed the healing of the epidermal barrier; increased the expression levels of inflammatory cytokines; promoted keratinocyte apoptosis and disturbed redox homeostasis. In vitro, ZnO NPs promoted TNF-α, IL-1β and IL-6 secretion and apoptosis of recombinant-human-TNF-α-stimulated HaCaT cells. NF-κB, ERK, p38 and JNK inhibitors blocked ZnO NP-induced inflammation. JSH-23, an inhibitor of the nuclear translocation of p-NF-κB p65, and NAC, an acetylated precursor of L-cysteine, not only inhibited the ZnO NP-induced inflammation but also inhibited apoptosis and cysteine deficiency. Neither erastin nor RSL3 induced p-NF-κB p65 nuclear translocation, but they did reduce cysteine biosynthesis. Additionally, ferropstatin-1, an inhibitor of lipid peroxidation, partially rescued ZnO NP-induced decreases in cell viability and cysteine content. Conclusions ZnO NPs delay the recovery of psoriasis-like skin lesions through promoting inflammation and keratinocyte apoptosis via the nuclear translocation of phosphorylated NF-κB p65 and cysteine deficiency. This work reminds the public that ZnO NPs are not safe for pathological skin, especially in inflammatory skin diseases such as psoriasis, and has revealed a partial mechanism by which ZnO NPs delay the recovery of pathological skin, promoting the appropriate use of ZnO NPs.

scholarly journals Insights into the skin microbiome dynamics of leprosy patients during multi-drug therapy and in healthy individuals from Brazil

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Paulo E. S. Silva ◽  
Mariana P. Reis ◽  
Marcelo P. Ávila ◽  
Marcela F. Dias ◽  
Patrícia S. Costa ◽  
...  
Keyword(s):  
Drug Therapy ◽  
Skin Microbiome ◽  
Healthy Individuals ◽  
Leprosy Patients

scholarly journals Structural aspects of lesional and non-lesional skin microbiota reveal key community changes in leprosy patients from India

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Nitin Bayal ◽  
Sunil Nagpal ◽  
Mohammed Monzoorul Haque ◽  
Milind S. Patole ◽  
Yogesh Shouche ◽  
...  
Keyword(s):  
Denaturing Gradient Gel Electrophoresis ◽  
Therapeutic Option ◽  
Normal Skin ◽  
Skin Microbiome ◽  
Skin Microbiota ◽  
Nested Polymerase Chain Reaction ◽  
Lesional Skin ◽  
Leprosy Patients ◽  
Gradient Gel Electrophoresis

AbstractAlthough skin is the primary affected organ in Leprosy, the role of the skin microbiome in its pathogenesis is not well understood. Recent reports have shown that skin of leprosy patients (LP) harbours perturbed microbiota which grants inflammation and disease progression. Herein, we present the results of nested Polymerase Chain Reaction-Denaturing Gradient Gel Electrophoresis (PCR-DGGE) which was initially performed for investigating the diversity of bacterial communities from lesional skin (LS) and non-lesional skin (NLS) sites of LP (n = 11). Further, we performed comprehensive analysis of 16S rRNA profiles corresponding to skin samples from participants (n = 90) located in two geographical locations i.e. Hyderabad and Miraj in India. The genus Staphylococcus was observed to be one of the representative bacteria characterizing healthy controls (HC; n = 30), which in contrast was underrepresented in skin microbiota of LP. Taxa affiliated to phyla Firmicutes and Proteobacteria were found to be signatures of HC and LS, respectively. Observed diversity level changes, shifts in core microbiota, and community network structure support the evident dysbiosis in normal skin microbiota due to leprosy. Insights obtained indicate the need for exploring skin microbiota modulation as a potential therapeutic option for leprosy.

scholarly journals miR-155 Contributes to Normal Keratinocyte Differentiation and Is Upregulated in the Epidermis of Psoriatic Skin Lesions

2020 ◽  
Vol 21 (23) ◽  
pp. 9288
Author(s):  
Lucian Beer ◽  
Polina Kalinina ◽  
Martin Köcher ◽  
Maria Laggner ◽  
Markus Jeitler ◽  
...  
Keyword(s):  
Skin Diseases ◽  
Normal Skin ◽  
Skin Lesions ◽  
Keratinocyte Differentiation ◽  
Psoriatic Skin ◽  
Bioinformatics Analyses ◽  
Epidermal Barrier ◽  
Barrier Formation

The role of microRNAs (miRNAs) during keratinocyte (KC) differentiation and in skin diseases with epidermal phenotypes has attracted strong interest over the past few years. However, combined mRNA and miRNA expression analyses to elucidate the intricate mRNA–miRNA networks of KCs at different stages of differentiation have not been performed yet. In the present study, we investigated the dynamics of miRNA and mRNA expression during KC differentiation in vitro and in normal and psoriatic epidermis. While we identified comparable numbers of up- and downregulated mRNAs (49% and 51%, respectively), miRNAs were predominantly upregulated (76% vs 24%) during KC differentiation. Further bioinformatics analyses suggested an important inhibitory role for miR-155 in KC differentiation, as it was repressed during KC differentiation in normal skin but strongly upregulated in the epidermis of psoriatic skin lesions. Mimicking the inflammatory milieu of psoriatic skin in vitro, we could show that the pro-inflammatory cytokines IL17, IL1β and INFγ synergistically upregulated miR-155 expression in KCs. Forced over-expression of miR-155 in human in vitro skin models specifically reduced the expression of loricrin (LOR) in KCs, indicating that miR-155 interferes with the establishment of a normal epidermal barrier. Together, our data indicate that downregulation of miR-155 during KC differentiation is a crucial step for epidermal barrier formation. Furthermore, its strong upregulation in psoriatic lesions suggests a contributing role of miR-155 in the altered keratinocyte differentiation observed in psoriasis. Therefore, miR-155 represents as a potential target for treating psoriatic skin lesions.

scholarly journals Quantitative PCR for leprosy diagnosis and monitoring in household contacts: A follow-up study, 2011–2018

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Fernanda S. N. Manta ◽  
Raquel R. Barbieri ◽  
Suelen J. M. Moreira ◽  
Paulo T. S. Santos ◽  
José A. C. Nery ◽  
...  
Keyword(s):  
Early Diagnosis ◽  
Skin Diseases ◽  
Survival Rates ◽  
Disease Free Survival ◽  
Skin Lesions ◽  
Contact Tracing ◽  
Household Contacts ◽  
Leprosy Patients ◽  
Skin Biopsies

Abstract Household contacts (HHC) of leprosy patients exhibit high-risk of developing leprosy and contact tracing is helpful for early diagnosis. From 2011 to 2018,2,437 HHC were examined in a clinic in Rio de Janeiro, Brazil and 16S qPCR was used for diagnosis and monitoring of contacts. Fifty-four HHCs were clinically diagnosed with leprosy at intake. Another 25 exhibited leprosy-like skin lesions at intake, 8 of which were confirmed as having leprosy (50% of which were qPCR positive) and 17 of which were diagnosed with other skin diseases (6% qPCR positive). In skin biopsies, qPCR presented a sensitivity of 0.50 and specificity of 0.94. Furthermore, 955 healthy HHCs were followed-up for at least 3 years and skin scrapings were collected from earlobes for qPCR detection. Positive qPCR indicated a non-significant relative risk of 2.52 of developing the disease. During follow-up, those who progressed towards leprosy exhibited 20% qPCR positivity, compared to 9% of those who remained healthy. Disease-free survival rates indicated that age had a significant impact on disease progression, where patients over 60 had a greater chance of developing leprosy [HR = 32.4 (3.6–290.3)]. Contact tracing combined with qPCR may assist in early diagnosis and age is a risk factor for leprosy progression.

scholarly journals Skin microbiome dysbiosis in leprosy cases

2021 ◽  
Vol 7 (5) ◽  
pp. 741
Author(s):  
Vannia C. Teng ◽  
Prima K. Esti
Keyword(s):  
Microbial Community ◽  
Microvascular Dysfunction ◽  
Skin Lesions ◽  
Skin Microbiome ◽  
Capillary Structure ◽  
Skin Microbiota ◽  
Microbiome Composition ◽  
Cutaneous Immunity ◽  
Leprosy Patients

<p>The human skin possesses a microenvironment conducive to the growth of the skin microbiome, which plays in many physiological functions in cutaneous immunity homeostasis and maturation. The microbiome composition depends on many variables, such as endogenous (host condition) or exogenous (environmental) factors and topographic location. Host-skin microbes’ interaction can be mutualism or pathogenicity. Dysbiosis or alteration in skin microbiota is associated with various dermatological diseases, including leprosy. Dysbiosis is driven by the alteration of the microbial communities themselves or due to the intrinsic features of the host. Leprosy is a chronic granulomatous disease caused by <em>Mycobacterium leprae</em> targeting the nerves and skin, leading to loss of sensation on the skin, with or without dermatologic lesions, and correlated with long term consequences, such as deformities or disability. Microvascular dysfunction and significant alterations in capillary structure due to invasion of <em>M. leprae</em> lead to altered hydration levels of the skin caused by disruption of blood flow; which changes the resident microbial community structure. The skin microbiome composition differences in leprosy patient’s skin lesions were observed; skin microbial diversity in the leprosy patients was lower than in healthy individuals. The diversity reduction was observed in freshly diagnosis leprosy patients, those at various stages of MDT, and post-MDT; indicated that both the interaction between skin microbial community and<strong> </strong><em>M. leprae</em> or the ongoing therapeutic regimen impacted the skin microbiome variation. </p><p> </p>

scholarly journals University students’ knowledge and attitudes towards leprosy

2013 ◽  
Vol 7 (09) ◽  
pp. 658-664 ◽  
Author(s):  
Omar Graciano-Machuca ◽  
Erandi Enif Velarde-de la Cruz ◽  
Maria Guadalupe Ramirez-Dueñas ◽  
Anabell Alvarado-Navarro
Keyword(s):  
Negative Attitude ◽  
Skin Lesions ◽  
Cross Sectional Study ◽  
Leprosy Patient ◽  
Educational Strategies ◽  
Cross Sectional ◽  
Negative Attitudes ◽  
Knowledge And Attitudes ◽  
Leprosy Patients ◽  
The University

Introduction: Patients with leprosy may be affected psychologically and socially by the negative attitude of society toward leprosy, caused by widespread ignorance and prevailing stereotypes surrounding the disease. This study aimed to determine the knowledge and attitudes toward leprosy among students at the University of Guadalajara. Methodology: This descriptive cross-sectional study included 1,300 students over 18 years of age from various Thematic University Centres in Guadalajara. Students’ degree subjects included the health sciences, humanities, exact sciences (i.e., chemistry, physics), arts, biological-agricultural sciences, and administration. Students were randomly selected regardless of gender and all students were enrolled in either the first, second, or third year of their undergraduate studies. Results: Overall, students showed an intermediate level of knowledge of leprosy. Results showed that 67% correctly responded that leprosy is an infectious disease, 64% knew of the presence of skin lesions, and 60% knew that a microbe causes the disease. Furthermore, 45% correctly responded that leprosy is a disease associated with poverty and 40% responded that leprosy is disabling. Only 31% stated that leprosy is curable. Negative attitudes were evident regarding the question of employing a leprosy patient (57%) and having a leprosy patient as a spouse or partner (30%). Discussion: The results revealed that there is insufficient knowledge of and poor attitudes toward leprosy among students at the University of Guadalajara. It is necessary to improve current health education measures by using updated educational strategies to reduce the stigma of leprosy and the segregation of leprosy patients and their families.

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