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https://www.readbyqxmd.com/read/29213272/host-responses-to-malassezia-spp-in-the-mammalian-skin
#1
REVIEW
Florian Sparber, Salomé LeibundGut-Landmann
The skin of mammalian organisms is home for a myriad of microbes. Many of these commensals are thought to have beneficial effects on the host by critically contributing to immune homeostasis. Consequently, dysbiosis can have detrimental effects for the host that may manifest with inflammatory diseases at the barrier tissue. Besides bacteria, fungi make an important contribution to the microbiota and among these, the yeast Malassezia widely dominates in most areas of the skin in healthy individuals. There is accumulating evidence that Malassezia spp...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29091937/phenome-wide-association-study-using-research-participants-self-reported-data-provides-insight-into-the-th17-and-il-17-pathway
#2
Margaret G Ehm, Jennifer L Aponte, Mathias N Chiano, Laura M Yerges-Armstrong, Toby Johnson, Jonathan N Barker, Suzanne F Cook, Akanksha Gupta, David A Hinds, Li Li, Matthew R Nelson, Michael A Simpson, Chao Tian, Linda C McCarthy, Deepak K Rajpal, Dawn M Waterworth
A phenome-wide association study of variants in genes in the Th17 and IL-17 pathway was performed using self-reported phenotypes and genetic data from 521,000 research participants of 23andMe. Results replicated known associations with similar effect sizes for autoimmune traits illustrating self-reported traits can be a surrogate for clinically assessed conditions. Novel associations controlling for a false discovery rate of 5% included the association of the variant encoding p.Ile684Ser in TYK2 with increased risk of tonsillectomy, strep throat occurrences and teen acne, the variant encoding p...
2017: PloS One
https://www.readbyqxmd.com/read/28944154/custard-apple-seed-induced-keratitis-a-harmful-traditional-practice-in-south-india
#3
Pratheeba Devi Nivean, S Malarkodi, M Nishanth, M Nivean
Custard apple seeds have been used as a traditional remedy for scalp infestation of lice and dandruff since many years in our part of the world. Not many people, doctors even, are aware about the ill effects of this practice. Surprisingly, there are very few reports on poisoning due to these seeds and the management is not very well streamlined. Rohit Shetty et al. highlighted the ill effects of the seeds and the need to avoid steroids in these cases as they worsen the clinical scenario. We present 2 patients who developed keratoconjunctivitis due to ocular exposure with custard apple seeds...
2017: GMS Ophthalmology Cases
https://www.readbyqxmd.com/read/28839388/a-study-on-scalp-hair-health-and-hair-care-practices-among-malaysian-medical-students
#4
B Satheesha Nayak, Chua Yuet Ann, Azeldeen Bin Azhar, Emily Chan Su Ling, Wong Hui Yen, P Ashwini Aithal
INTRODUCTION: Scalp care is essential because it determines the health and condition of the hair and prevents the diseases of scalp and hair. The objectives of our study were to correlate race and hair types, to determine the awareness of hair care among Malaysian medical students, and to distinguish the factors that affect the health of hair and scalp. METHODOLOGY: It was a cross-sectional study wherein validated questionnaires were given to 240 medical undergraduate students who belonged to three ethnic races of Malaysia, i...
April 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/28833273/reinforcement-of-barrier-function-and-scalp-homeostasis-by-senkyunolide-a-to-fight-against-dandruff
#5
P Mondon, C Ringenbach, E Doridot, V Genet
OBJECTIVE: Senkyunolide-A (SENKY) can be isolated from Apium graveolens seed oil obtained using supercritical CO2 extraction. SENKY and its parent compounds, the N-butyl phthalides, have been demonstrated to protect cells from CO poisoning, to prevent diabetes mellitus and to decrease cancer cell proliferation. This study was undertaken to evaluate in vitro and in vivo the effect of SENKY on epidermal function improvement, Malassezia effect control, scalp soothing and dandruff reduction via skin protection-related pathways...
August 18, 2017: International Journal of Cosmetic Science
https://www.readbyqxmd.com/read/28789559/the-positive-benefit-of-lactobacillus-paracasei-ncc2461-st11-in-healthy-volunteers-with-moderate-to-severe-dandruff
#6
P Reygagne, P Bastien, M P Couavoux, D Philippe, M Renouf, I Castiel-Higounenc, A Gueniche
Dandruff is a common persistent, relapsing inflammatory condition affecting the scalp. An imbalanced proportion of the major bacterial and fungal populations colonising the scalp, a skin barrier dysfunction, and hyperseborrhoea are three main etiological factors of dandruff. The efficacy of Lactobacillus paracasei NCC 2461 ST11 (ST11) to manage dandruff and to restore a balanced scalp microbiome was assessed. Sixty healthy male volunteers aged 18 to 60 years with moderate to severe dandruff consumed on a daily basis a sachet containing ST11 (1×10(9) cfu) or a placebo for 56 days...
August 9, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28766952/inhibition-of-the-%C3%AE-carbonic-anhydrase-from-the-dandruff-producing-fungus-malassezia-globosa-with-monothiocarbamates
#7
Alessio Nocentini, Daniela Vullo, Sonia Del Prete, Sameh M Osman, Fatmah A S Alasmary, Zeid AlOthman, Clemente Capasso, Fabrizio Carta, Paola Gratteri, Claudiu T Supuran
A series of monothiocarbamates (MTCs) was investigated for the inhibition of the β-class carbonic anhydrase (CAs, EC 4.2.1.1) from the fungal parasite Malassezia globosa, MgCA. These MTCs incorporate various scaffolds, among which aliphatic amine with 1-4 carbons atom in their molecule, morpholine, piperazine, as well as phenethylamine and benzylamine derivatives. All the reported MTCs displayed a better efficacy in inhibiting MgCA compared to the clinically used sulphonamide drug acetazolamide (KI of 74 μM), with KIs spanning between 1...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28690211/new-perspectives-on-dandruff-and-seborrheic-dermatitis-lessons-we-learned-from-bacterial-and-fungal-skin-microbiota
#8
Luciana Campos Paulino
The human body is inhabited by complex microbial communities, which positively impact different aspects of our health, and might also be related to the development of diseases. Progress in technologies, particularly sequencing methods and bioinformatics tools, has been crucial for the advances in this field. Microbial communities from skin can modulate immune response and protect the host against pathogens, and there are also data supporting their association with several skin conditions; including dandruff and seborrheic dermatitis...
June 1, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28679382/ethnopharmacological-survey-of-home-remedies-used-for-treatment-of-hair-and-scalp-and-their-methods-of-preparation-in-the-west-bank-palestine
#9
Abdel Naser Zaid, Nidal Amin Jaradat, Ahmad Mustafa Eid, Hamzeh Al Zabadi, Abdulsalam Alkaiyat, Saja Adam Darwish
BACKGROUND: Natural products have many uses and purposes, including those linked to pharmaceutics and cosmetics. The aim of this study was to investigate the use of natural remedies for the treatment of hair and scalp disorders in the West Bank, Palestine. METHODS: An ethnopharmacological survey of herbal remedies and other natural products used in cosmetics and cosmeceuticals was carried out in the West Bank, Palestine. A questionnaire was distributed to 267 herbalists, traditional healers, hairdressers and rural dwellers...
July 5, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28673550/a-rare-case-of-sterol-c4-methyl-oxidase-deficiency-in-a-young-italian-male-biochemical-and-molecular-characterization
#10
Giulia Frisso, Monica Gelzo, Elena Procopio, Concetta Sica, Maria Pia Lenza, Antonio Dello Russo, Maria Alice Donati, Francesco Salvatore, Gaetano Corso
Inborn defects of cholesterol biosynthesis are metabolic disorders presenting with multi-organ and tissue anomalies. An autosomal recessive defect involving the demethylating enzyme C4-methyl sterol (SC4MOL) has been reported in only 4 patients so far. In infancy, all patients were affected by microcephaly, bilateral congenital cataracts, growth delay, psoriasiform dermatitis, immune dysfunction, and intellectual disability. Herein, we describe a new case of SC4MOL deficiency in which a 19-year-old Italian male was affected by bilateral congenital cataracts, growth delay and learning disabilities, behavioral disorders and small stature, but not microcephaly...
June 27, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28599021/imaging-microscopic-distribution-of-antifungal-agents-in-dandruff-treatments-with-stimulated-raman-scattering-microscopy
#11
Natlaie L Garrett, Bhumika Singh, Andrew Jones, Julian Moger
Treatment of dandruff condition usually involves use of antidandruff shampoos containing antifungal agents. Different antifungal agents show variable clinical efficacy based on their cutaneous distribution and bioavailability. Using stimulated Raman scattering (SRS), we mapped the distribution of unlabeled low-molecular weight antifungal compounds zinc pyrithione (ZnPT) and climbazole (CBZ) on the surface of intact porcine skin with cellular precision. SRS has sufficient chemical selectivity and sensitivity to detect the agents on the skin surface based on their unique chemical motifs that do not occur naturally in biological tissues...
June 1, 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28566909/in-vitro-anti-malassezia-activity-of-castanea-crenata-shell-and-oil-soluble-glycyrrhiza-extracts
#12
Song Hee Han, Min Seok Hur, Min Jung Kim, Won Hee Jung, Minji Park, Jeong Hwan Kim, Hong Ju Shin, Yong Beom Choe, Kyu Joong Ahn, Yang Won Lee
BACKGROUND: A new shampoo with anti-Malassezia properties obtained from various plants is required to provide seborrheic dermatitis patients with a wider range of treatment options. OBJECTIVE: The aim of this study was to obtain in vitro susceptibility profiles of Malassezia restricta and M. globosa, the most important pathogenic organisms in the development of seborrheic dermatitis, to the plant extracts used in commercial anti-dandruff shampoos. METHODS: Minimal inhibitory concentrations (MICs) were determined for eight candidate plant extracts and two plant-derived natural products diluted with Leeming and Notman medium to final concentrations of 0...
June 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28552438/high-prevalence-of-demodex-spp-infestation-among-patients-with-posterior-blepharitis-correlation-with-age-and-cylindrical-dandruff
#13
D López-Ponce, F Zuazo, C Cartes, D Salinas-Toro, C Pérez-Valenzuela, F Valenzuela, L Traipe-Castro, R O López-Solís
OBJECTIVE: To determine prevalence of Demodex spp. and infestation index (II) by the parasite among patients of different ages with blepharitis and to assess association with occurrence of cylindrical dandruff (CC). MATERIALS AND METHODS: Prospective study including patients diagnosed with posterior blepharitis between 2013 and 2015, without previous acaricide treatment, was conducted by Fundación Oftalmológica Los Andes (Chile). Four eyelashes were randomly extracted from each eyelid for parasite detection...
September 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/28550716/ex-vivo-measurement-of-scalp-follicular-infundibulum-delivery-of-zinc-pyrithione-and-climbazole-from-an-anti-dandruff-shampoo
#14
Guoqiang Chen, Chengdong Ji, Miao Miao, Kang Yang, Yajun Luo, Michael Hoptroff, Luisa Z Collins, Hans-Gerd Janssen
Efficient delivery of anti-dandruff (AD) actives into the scalp follicular infundibulum as well as onto the scalp surface is critical for the efficacy of AD shampoos. A method involving scalp cyanoacrylate (CA) biopsy sampling, a tailor made cutting device, ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) analysis, scanning electron microscopy (SEM) measurement and Raman imaging has been developed for the measurement of delivery of zinc pyrithione (ZPT) and climbazole (CBZ) from an AD shampoo into the scalp follicular infundibulum...
September 5, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28504468/incubatory-environment-of-the-scalp-impacts-pre-emergent-hair-to-affect-post-emergent-hair-cuticle-integrity
#15
James R Schwartz, James P Henry, Kathy M Kerr, Michael J Flagler, Steve H Page, Nancy Redman-Furey
OBJECTIVES: To determine whether the oxidative stress transmitted to newly grown hair from an unhealthy scalp has physical consequences to the cuticular condition and function. METHODS: A uniquely designed 24-week clinical study included 8 weeks of pretreatment with a cosmetic shampoo and 16 weeks of treatment with either a potentiated zinc pyrithione (ZPT) antidandruff shampoo or a placebo cosmetic shampoo. This clinical design allowed the growth and acquisition of hair samples under conditions of varying but known scalp health as a result of treating a dandruff/seborrheic dermatitis (D/SD) population...
May 14, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28468620/evaluation-of-therapeutic-potential-of-vb-001-a-leave-on-formulation-for-the-treatment-of-moderate-adherent-dandruff
#16
Anamika Bhattacharyya, Nilu Jain, Sudhanand Prasad, Shilpi Jain, Vishal Yadav, Shamik Ghosh, Shiladitya Sengupta
BACKGROUND: Dandruff is a common scalp condition characterized by excessive scaling and itch. Aberrant colonization of the scalp by commensal Malassezia spp. is a major contributor in the multifactorial etiology of dandruff. Literature based understanding of Malassezia linked pathophysiology of dandruff allowed us to comprehend a strategy to potentiate the efficacy of a known antifungal agent used in dandruff therapy. The aim of this study was to determine the efficacy and skin safety of VB-001 antidandruff leave-on formulation in comparison with marketed antidandruff ZPTO shampoo in patients with moderate adherent dandruff of the scalp...
May 3, 2017: BMC Dermatology
https://www.readbyqxmd.com/read/28403264/a-retrospective-review-of-treatment-results-for-patients-with-central-centrifugal-cicatrical-alopecia
#17
COMPARATIVE STUDY
Ariana Eginli, Emily Dothard, Courtney W Bagayoko, Karen Huang, Alyssa Daniel, Amy J McMichael
<p>INTRODUCTION: Central centrifugal cicatricial alopecia (CCCA) is a form of scarring alopecia primarily affecting women of African descent on the crown of the scalp. Limited data exists regarding evidence-based treatment for CCCA.</p> <p>OBJECTIVE: To examine photos of subjects with CCCA before and after treatment in order to evaluate results of treatment and compare results of different treatment regimens.</p> <p>METHODS: Photographs of 15 subjects with CCCA before and after treatment were evaluated by two blinded investigators who assigned disease severity scores to photographs based on a published scale: Central Scalp Alopecia Photographic Scale in African American Women...
April 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28393697/targeting-malassezia-species-for-novel-synthetic-and-natural-antidandruff-agents
#18
REVIEW
Letizia Angiolella, Simone Carradori, Cristina Maccallini, Gustavo Giusiano, Claudiu T Supuran
Malassezia spp. are lipophilic yeasts not only present in the normal skin microflora, but also responsible of skin-related diseases (pityriasis versicolor, seborrheic/atopic dermatitis and dandruff) as well as systemic fungal infections in humans and animals. Their treatment and eradication are mainly based on old azole drugs, which are characterized by poor compliance, unpredictable clinical efficacy, emerging resistance and several side effects. These drawbacks have prompted the research toward novel synthetic and natural derivatives/ nanomaterials targeting other pivotal enzymes/pathways such as carbonic anhydrase (MgCA) and lipases, alone or in combination, in order to improve the eradication rate of this fungus...
2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28383830/-how-i-treat-%C3%A2-dandruff-using-a-shampoo-with-a-sulfate-free-tensio-active
#19
REVIEW
P Reygagne, G E Piérard, G Loussouarn, N Le Nôtre, S Ziane
A new formulation of an anti-dandruff shampoo containing a surfactant devoid of a sulfate-type anionic part has been assessed in vivo in 41 subjects. Introducing a welltried agent, the 0.5 % piroctone olamine confers to this shampoo a high anti-dandruff efficacy, a reduction in the density in Malassezia spp, as well as a good remanence after shampoo. In addition, piroctone olamine appears to influence the sebum rheology by reducing the hair greasing.
September 2016: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28375586/a-dissociation-in-judgements-of-confidence-in-people-with-dandruff-based-on-self-reports-compared-to-reports-from-other-observers
#20
A Godbehere, L McDonald, F Baines, C A M Sutherland, T J Andrews
OBJECTIVE: It is not clear how well evaluations made by other people correspond with self-evaluations of esteem or confidence. To address this question, we compared measurements of confidence in participants with and without dandruff. METHODS: Participants with dandruff were significantly different from healthy control participants on a quality of life measure of scalp dermatitis, but not on self-evaluations of esteem or confidence. To determine whether there were differences in the evaluation of confidence by others, both groups of participants were videoed while they prepared for or gave a presentation in an interview scenario...
April 4, 2017: International Journal of Cosmetic Science
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