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1.
Pak J Pharm Sci ; 37(2): 399-404, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38767107

RESUMEN

Hair loss (alopecia) continues to be an issue for both sexes. There are multiple ways to reduce the effects of alopecia, one of which is topical minoxidil (MXD). This study aimed to test the effects of minoxidil nanoliposomes (MXD-NLs) on the hair of mice, compared with free MXD and to examine the disinfectant ability of MXD-NLs toward scalp bacteria. To test the study hypothesis, MXD-NLs and free MXD were prepared. Mouse hair was shaved prior to the experiment. MXD-NLs, free MXD and their vehicles were applied for 15 days. In addition, dermal swabs were used to isolate scalp bacteria and test the inhibitory effect of pretreated media with the two formulations and their vehicles. The results revealed that hair growth in the MXD-NLs -treated group (0.65±0.1cm) was higher than that in the free MXD -treated group (0.53±0.2cm). In addition, MXD-NLs treated media reduced the number of scalp bacteria (p=0.0456) compared with free MXD. These results reveal a novel formulation of MXD with faster hair growth properties and a better disinfectant effect than free MXD. This study can help future researchers to expand and develop MXD-NLs.


Asunto(s)
Alopecia , Cabello , Liposomas , Minoxidil , Cuero Cabelludo , Minoxidil/farmacología , Animales , Cabello/crecimiento & desarrollo , Cabello/efectos de los fármacos , Cabello/microbiología , Cuero Cabelludo/efectos de los fármacos , Ratones , Alopecia/tratamiento farmacológico , Alopecia/microbiología , Nanopartículas , Desinfectantes/farmacología , Masculino , Femenino
2.
Int J Cosmet Sci ; 43 Suppl 1: S26-S33, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-34424549

RESUMEN

OBJECTIVE: Increasing scalp hair fullness is a global unmet consumer need. An approach to decrease hair shedding by reducing scalp stratum corneum oxidation via a combination of antioxidant and barrier-enhancing technologies has been previously demonstrated. The purpose of this study was to test the effectiveness of the individual antioxidant piroctone olamine in two different product forms (shampoo or leave-on product) for activity to improve hair retention. METHODS: Female subjects with self-perceived hair thinning participated in an 8-week, double-blind, placebo-controlled, randomized clinical study to evaluate either a piroctone olamine (PO) containing shampoo or a PO containing leave on treatment, each relative to their corresponding placebo formulation Too many periods. Results for phototrichograms, TEWL, and biomarker analysis of scalp condition for the shampoo treatments are discussed. Phototrichogram results are shared for the assessment of the leave on treatment. RESULTS: Statistically significant increases in hair amount were observed by phototrichogram after use of both PO-containing products versus placebo formulations. The PO shampoo treatment also significantly decreased oxidative stress on the hair and scalp, and improved scalp condition as assessed by TEWL and scalp biomarker values. CONCLUSION: These results illustrate the effectiveness of a cosmetic antioxidant to improve scalp condition thereby improving hair retention. The observed improvements in scalp condition are consistent with previous reports with other antioxidant technologies and suggest that the hair retention effect was achieved by preventing oxidative damage to the scalp.


Asunto(s)
Alopecia/tratamiento farmacológico , Antioxidantes/uso terapéutico , Etanolaminas/uso terapéutico , Preparaciones para el Cabello/uso terapéutico , Piridonas/uso terapéutico , Cuero Cabelludo/efectos de los fármacos , Administración Tópica , Adulto , Anciano , Antioxidantes/administración & dosificación , Método Doble Ciego , Combinación de Medicamentos , Etanolaminas/administración & dosificación , Femenino , Preparaciones para el Cabello/administración & dosificación , Humanos , Persona de Mediana Edad , Piridonas/administración & dosificación
3.
Int J Cosmet Sci ; 43 Suppl 1: S14-S25, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-34424558

RESUMEN

OBJECTIVE: Increasing hair fullness is a global unmet need for many men and women. An approach to the problem is to decrease hair fall or shedding by reducing scalp stratum corneum oxidation and barrier damage to increase hair retention. This study evaluated a combination of functional antioxidants and barrier-enhancing cosmetic ingredients to improve scalp condition thereby enabling stronger hair anchorage and longer retention. METHODS: Male and female subjects with normal scalp condition and self-perceived hair thinning participated in a 24-week, double-blind, placebo-controlled, randomized clinical study assessing either a regimen of treatment shampoo and leave-on treatment containing functional antioxidant and barrier-enhancing agents or an identical placebo chassis shampoo control. The functional ingredients were piroctone olamine, zinc pyrithione, zinc carbonate, niacinamide, panthenol and caffeine. At baseline and after 8, 16 and 24 weeks of product use, several measurements were taken: hair shedding, total hair count (by phototrichogram), hair samples, TEWL and evaluation of biomarkers of scalp and hair conditions. Subjects also completed self-assessment questionnaires. RESULTS: Statistically significant effects for functional ingredient-containing treatment regimen versus a placebo control shampoo formulation were observed for reduced hair shedding, increased total hair count, reduced TEWL and improvement in scalp biomarker values. Subjects also noticed these improvements assessed via self-assessment questionnaires. CONCLUSIONS: These results establish that the use of functional antioxidant and barrier-enhancing agents to further improve scalp condition can enable a reduction in hair shedding and thus an increase in perceived hair fullness. The underlying improvements in scalp condition suggest the hair benefits were achieved as a result of improved scalp skin barrier and scalp condition leading to a viable preventative approach for hair thinning.


Asunto(s)
Alopecia/tratamiento farmacológico , Antioxidantes/uso terapéutico , Preparaciones para el Cabello/uso terapéutico , Cuero Cabelludo/efectos de los fármacos , Administración Tópica , Adulto , Anciano , Antioxidantes/administración & dosificación , Biomarcadores/sangre , Método Doble Ciego , Preparaciones para el Cabello/administración & dosificación , Humanos , Masculino , Persona de Mediana Edad
4.
Int J Cosmet Sci ; 43(5): 510-517, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34058011

RESUMEN

OBJECTIVE: Dandruff is a common scalp condition that can be improved by regular use of shampoos containing anti-fungal actives. The efficacy of anti-dandruff shampoos can be assessed by measuring scalp flaking, one of the important dandruff symptoms. A randomized, double-blind trial is often used with one of two clinical designs: whole-head parallel design and split-head paired design. We aimed to explore the difference in product differentiation between these two designs using the same two test shampoos and the same scalp flaking assessment method (Total Weighted Head Score Adhered Flakes-TWHS AF). METHODS: A clinical study was conducted with a 2- to 3-week wash-out phase and a 4-week test phase, consisting of 2 cells: 120 subjects with whole-head parallel design, divided into 2 subgroups (1:1) using on-site controlled washing method (either wash their own hair at a study site, under the instruction of a study supervisor or wash their own hair at home, as per instructions, but without supervision) and 35 subjects with split-head paired design using salon-staff washing method. Both cells employed hair washing at frequency of three times a week and TWHS AF measurement once a week from the baseline assessment. RESULTS: Both designs gave similar differences in TWHS AF between products: 5.6 units (95% CI: 4.1-7.0 units) in whole-head design and 5.9 units (95% CI: 4.9-6.9 units) in split-head design. CONCLUSION: Split-head paired design shows a similar ability of detecting product difference as whole-head parallel design, whereas it is a choice of more efficient and more cost-effective, as only a quarter of the subjects are required to demonstrate the efficacy between anti-dandruff shampoos.


OBJECTIF: Les pellicules sont une affection courante du cuir chevelu qui peut être améliorée par l'utilisation régulière de shampooings contenant des principes actifs antifongiques. L'efficacité des shampooings antipelliculaires peut être évaluée en mesurant la desquamation du cuir chevelu, l'un des symptômes importants associés aux pellicules. Il est souvent fait recours à une étude randomisée et en double aveugle reposant sur l'une des deux conceptions cliniques suivantes: une conception parallèle portant sur la tête entière et une conception appariée par séparation de la surface de la tête. Nous avons cherché à étudier en quoi des produits se différenciaient entre ces deux conceptions, en utilisant les deux mêmes shampooings d'examen et la même méthode d'évaluation de la desquamation du cuir chevelu (score total pondéré des pellicules collées sur la tête [Total Weighted Head Score Adhered Flakes, TWHS AF]). MÉTHODES: Une étude clinique a été menée avec une fenêtre thérapeutique de deux à trois semaines et une phase d'examen de quatre semaines, composée de deux cellules: 120 sujets recrutés selon une conception parallèle portant sur la tête entière, répartis en deux sous-groupes (1:1), avec un lavage réalisé au centre d'après une méthode contrôlée (lavage par le sujet dans l'un des centres de l'étude, réalisé sous les instructions d'un superviseur de l'étude, ou lavage par le sujet à son domicile, en suivant les instructions, mais sans surveillance) et 35 sujets recrutés selon une conception appariée par séparation de la surface de la tête, avec un lavage réalisé selon la méthode employée par le personnel des salons de coiffure. Pour les deux cellules, le lavage des cheveux avait lieu à une fréquence de trois fois par semaine et le score TWHS AF était mesuré une fois par semaine à partir de l'évaluation de référence. RÉSULTATS: Les deux conceptions ont permis d'observer des différences similaires des scores TWHS AF entre les produits: 5,6 unités (IC à 95%: 4,1 à 7,0 unités) avec la conception portant sur la tête entière et 5,9 unités (IC à 95%: 4,9 à 6,9 unités) avec la conception par séparation de la surface de la tête. CONCLUSION: Par comparaison avec la conception parallèle portant sur la tête entière, la conception appariée par séparation de la surface de la tête montre une capacité de détection similaire de la différence entre les produits, mais constitue un choix plus efficace et plus rentable, car elle n'exige de démontrer l'efficacité entre les shampooings antipelliculaires que chez un quart des sujets.


Asunto(s)
Caspa/tratamiento farmacológico , Preparaciones para el Cabello/uso terapéutico , Cuero Cabelludo/efectos de los fármacos , Adulto , Método Doble Ciego , Femenino , Cabeza , Humanos , Masculino , Persona de Mediana Edad , Adulto Joven
7.
J Neuroophthalmol ; 41(1): e125-e127, 2021 03 01.
Artículo en Inglés | MEDLINE | ID: mdl-31633591

RESUMEN

ABSTRACT: Giant cell arteritis (GCA) is a medium-to-large vessel vasculitis of the elderly. Common constitutional clinical features include headache, scalp tenderness, and jaw claudication. Severe unilateral or bilateral visual loss is the most feared ophthalmic complication of GCA. Scalp necrosis is a known ischemic complication of GCA with approximately 100 cases reported in the literature to date. We report a case of scalp pain and an erythematous cutaneous lesion in the distribution of ophthalmic division of the trigeminal nerve that mimicked herpes zoster ophthalmicus. A temporal artery biopsy was positive for GCA, and small vessel arteritis was seen at the time of simultaneous skin biopsy. To the best of our knowledge, this is the first such report in the English language ophthalmic literature.


Asunto(s)
Arteritis de Células Gigantes/complicaciones , Cuero Cabelludo/patología , Anciano de 80 o más Años , Biopsia , Sedimentación Sanguínea , Encéfalo/diagnóstico por imagen , Femenino , Arteritis de Células Gigantes/diagnóstico , Arteritis de Células Gigantes/tratamiento farmacológico , Glucocorticoides/uso terapéutico , Humanos , Imagen por Resonancia Magnética , Necrosis/diagnóstico , Necrosis/tratamiento farmacológico , Necrosis/etiología , Cuero Cabelludo/efectos de los fármacos , Enfermedades de la Piel/diagnóstico , Enfermedades de la Piel/etiología , Arterias Temporales/patología
8.
Med Mycol ; 59(2): 210-213, 2021 Feb 04.
Artículo en Inglés | MEDLINE | ID: mdl-32785575

RESUMEN

Malassezia restricta and Malassezia globosa are lipid dependent commensal yeasts associated with dandruff. Antifungal actives such as zinc pyrithione are commonly used in antidandruff shampoos, although their efficacy is not clearly demonstrated. In this study, we assessed the efficacy of antifungal treatments on scalp Malassezia via a combination of culturomic and genomic detection methods. Zinc pyrithione inhibited Malassezia growth at low minimum inhibitory concentrations (MICs). In a longitudinal pilot study, quantitative polymerase chain reaction (qPCR) analysis showed a decrease in M. restricta on the scalp after zinc pyrithione treatment. These findings validate the antifungal efficacy of zinc pyrithione as a dandruff treatment. LAY ABSTRACT: Malassezia yeasts are associated with dandruff and seborrheic dermatitis. Zinc pyrithione is effective against Malassezia growth in vitro and when tested on human skin as a shampoo. These findings will be useful for investigating the role of Malassezia in skin microbiome intervention studies.


Asunto(s)
Antifúngicos/farmacología , Malassezia/efectos de los fármacos , Malassezia/crecimiento & desarrollo , Compuestos Organometálicos/farmacología , Piridinas/farmacología , Cuero Cabelludo/efectos de los fármacos , Piel/efectos de los fármacos , Simbiosis/efectos de los fármacos , Adulto , Anciano , Estudios de Cohortes , Humanos , Estudios Longitudinales , Malassezia/clasificación , Malassezia/genética , Pruebas de Sensibilidad Microbiana , Persona de Mediana Edad , Proyectos Piloto , Cuero Cabelludo/microbiología , Piel/microbiología , Jabones/química , Jabones/farmacología , Encuestas y Cuestionarios , Adulto Joven
10.
J Am Acad Dermatol ; 84(5): 1285-1294, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-33038469

RESUMEN

BACKGROUND: Dutasteride has been proposed as an effective therapy for frontal fibrosing alopecia (FFA). OBJECTIVES: We sought to describe the therapeutic response to dutasteride and the most effective dosage in FFA compared with other therapeutic options or no treatment. METHODS: This was a retrospective observational study including patients with FFA with a minimum follow-up of 12 months. Therapeutic response was evaluated according to the stabilization of the hairline recession. RESULTS: A total of 224 patients (222 females) with a median follow-up of 24 months (range 12-108 months) were included. The stabilization rate for the frontal, right, and left temporal regions after 12 months was 62%, 64%, and 62% in the dutasteride group (n = 148), 60%, 35%, and 35% with other systemic therapies (n = 20), and 30%, 41%, and 38% without systemic treatment (n = 56; P = .000, .006, and .006, respectively). Stabilization showed a statistically significant association with an increasing dose of dutasteride (88%, 91%, and 84% with a weekly treatment of 5 or 7 doses of 0.5 mg [n = 32], P < .005). Dutasteride was well tolerated in all patients. LIMITATIONS: Limitations included the observational and retrospective design. CONCLUSIONS: Oral dutasteride was the most effective therapy with a dose-dependent response for FFA in real clinical practice compared with other systemic therapies or no systemic treatment.


Asunto(s)
Alopecia/tratamiento farmacológico , Dutasterida/administración & dosificación , Frente/patología , Cuero Cabelludo/patología , Administración Oral , Adulto , Anciano , Anciano de 80 o más Años , Alopecia/patología , Relación Dosis-Respuesta a Droga , Femenino , Fibrosis , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Cuero Cabelludo/efectos de los fármacos , Resultado del Tratamiento
11.
Dermatol Online J ; 26(11)2020 Nov 15.
Artículo en Inglés | MEDLINE | ID: mdl-33342178

RESUMEN

Frontal fibrosing alopecia (FFA) typically presents with band-like scarring alopecia in the frontal and temporal hairline along with eyebrow loss. Although this type of hair loss is being seen with increased frequency worldwide, the etiology of the condition is unknown. Studies have suggested a potential environmental role with moisturizers and sunscreens being possible triggers. Herein, we present a 42-year-old woman with a biopsy-proven diagnosis of frontal fibrosing alopecia. In addition to the typical pattern, she also had a striking linear patch of hair loss along her central part. This was an area where she regularly applied sunscreen for many years. Although a causative role for sunscreen ingredients in the development of FFA has not been proven, the evidence accumulated thus far, including our suggestive case, substantiates the need for further study. Additionally, increasing awareness of this potential effect leading to appropriate counseling regarding cessation of possible triggers may be critical for the prevention of further hair loss.


Asunto(s)
Alopecia/inducido químicamente , Cuero Cabelludo/patología , Protectores Solares/efectos adversos , Adulto , Alopecia/patología , Femenino , Humanos , Cuero Cabelludo/efectos de los fármacos
13.
Int J Mol Sci ; 21(18)2020 Sep 06.
Artículo en Inglés | MEDLINE | ID: mdl-32899959

RESUMEN

Platelet-rich plasma (PRP) therapy has been considered as a promising treatment for androgenetic alopecia (AGA). The aim of the study was comparative evaluation of the clinical efficacy of PRP-therapy, minoxidil, and their combination in the treatment of men with AGA and to evaluate the effects of PRP on the proliferation of hair follicle (HF) cells in skin biopsy. MATERIALS AND METHODS: The study involved 69 men who were divided into 3 groups who received PRP therapy, minoxidil, and their combination. The clinical efficacy of the therapy was evaluated by the dynamics of morphometric of hairs. To assess cell proliferation antibodies to ß-catenin, CD34, Ki67, and to Dkk-1 were used. RESULTS: PRP treatment was more effective than minoxidil therapy (p = 0.005). Complex therapy turned out to be more effective than minoxidil monotherapy (p < 0.0001) and PRP monotherapy (p = 0.007). After applying PRP the absolute and relative values of the ß-catenin and CD34 expression area increased; an increase in Ki67+ index was also significant. CONCLUSIONS: PRP can be considered as a treatment option for AGA. Combined PRP and minoxidil use seems promising for the treatment of AGA. PRP increase in the proliferative activity of HF cells and improves hair morphology in patients with AGA.


Asunto(s)
Alopecia/terapia , Proliferación Celular , Folículo Piloso/fisiología , Minoxidil/administración & dosificación , Plasma Rico en Plaquetas/fisiología , Adulto , Alopecia/tratamiento farmacológico , Alopecia/patología , Biopsia , Recuento de Células , Proliferación Celular/efectos de los fármacos , Terapia Combinada , Cabello/efectos de los fármacos , Cabello/metabolismo , Cabello/patología , Folículo Piloso/efectos de los fármacos , Folículo Piloso/patología , Humanos , Inmunohistoquímica , Masculino , Transfusión de Plaquetas/métodos , Cuero Cabelludo/efectos de los fármacos , Cuero Cabelludo/patología , Resultado del Tratamiento , Adulto Joven
15.
Clin Neurol Neurosurg ; 197: 106125, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32836063

RESUMEN

Pain after supratentorial craniotomy is common, 55 % to 80 % of patients experience moderate to severe pain in the first 48 h(1-7). The importance of intravenous dexamethasone as an adjuvant to local anaesthetics is increasingly applied(1-7), however its role in scalp nerve blocks with ropivacaine 0.75 % remains unexplored in post-operative analgesia. We analyzed 134 supratentorial craniotomies under general anaesthesia, 46 of which had preoperatively bilateral scalp nerve blocks with ropivacaine 0.75 %. The general anaesthesia was standardized and included 8 mg of intravenous dexamethasone at the induction. The postoperative pain was assessed using the numerical rating scale with patients in the post anaesthesia care unit and subsequently every 8 h in the neurosurgery unit until the 48th hour. A NRS value above 3 led to the administration of a rescue analgesic according to the defined protocol until an efficient analgesia was obtained. Postoperative pain was controlled in both groups, however the need for rescue analgesics in the scalp nerve blocks group was reduced by 40 % (39 % vs. 65 %; p = 0.006) compared to the control group. More than 60 % of the patients from the scalp nerve blocks group had an efficient analgesia without any rescue analgesic. Peroperatively the scalp nerve blocks group showed a decrease in opioid consumption and a better hemodynamic stability. No anesthetic or chirurgical complications related to the use of scalp blocks were observed. Scalp nerve blocks associated with intravenous dexamethasone are found to be a straightforward and efficient analgesic approach during supratentorial craniotomies.


Asunto(s)
Anestésicos Locales/uso terapéutico , Craneotomía/efectos adversos , Dexametasona/uso terapéutico , Glucocorticoides/uso terapéutico , Bloqueo Nervioso/métodos , Dolor Postoperatorio/tratamiento farmacológico , Ropivacaína/uso terapéutico , Cuero Cabelludo/efectos de los fármacos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Quimioterapia Combinada , Femenino , Humanos , Masculino , Persona de Mediana Edad , Manejo del Dolor/métodos , Dimensión del Dolor , Método Simple Ciego , Resultado del Tratamiento , Adulto Joven
16.
Int J Cosmet Sci ; 42(6): 615-621, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-32803888

RESUMEN

OBJECTIVE: The human scalp harbours a vast community of microbiotal mutualists. Androgenetic alopecia (AGA), the most common form of hair loss in males, is a multifactorial condition involving genetic predisposition and hormonal changes. The role of microflora during hair loss remains to be understood. After having characterized the scalp microbiota of 12 healthy male subjects and 12 AGA male subjects (D0), the aim of this investigation was to evaluate the capacity of Lindera strychnifolia root extract (LsR) to restore a healthy bacterial and fungal scalp microflora after 83 days (D83) of treatment. MATERIAL AND METHODS: The strategy used was based on high-throughput DNA sequencing targeting the encoding 16S ribosomal RNA for bacteria and Internal Transcribed Spacer 1 ribosomal DNA for fungi. RESULTS: Test analysis of relative abundance comparing healthy and AGA subjects showed a significant increase of Cutibacterim acnes (P < 0.05) and Stenotrophomonas geniculata (P < 0.01) in AGA subjects. AGA scalp condition was also associated with a significant (P < 0.05) decrease of Staphylococcus epidermidis relative abundance. A lower proportion of Malassezia genus in samples corresponding to AGA scalps and an increase of other bacterial genera (Wallemia, Eurotium) were also noted. At the species level, mean relative abundance of Malassezia restricta and Malassezia globosa were significantly lower (P < 0.05) in the AGA group. Eighty-three days of treatment induced a significant decrease in the relative abundance of C. acnes (P < 0.05) and S. geniculata (P < 0.01). S. epidermidis increased significantly (P < 0.05). At the same time, LsR treatment induced a significant increase in the proportion of M. restricta and M. globosa (P < 0.05). CONCLUSION: Data from sequencing profiling of the scalp microbiota strongly support a different microbial composition of scalp between control and AGA populations. Findings suggest that LsR extract may be a potential remedy for scalp microbiota re-equilibrium.


OBJECTIF: Le cuir chevelu humain abrite une vaste communauté microbienne. L'alopécie androgénétique (AGA), la forme la plus courante de perte de cheveux chez l'homme, est une pathologie multifactorielle impliquant une prédisposition génétique et des changements hormonaux. Le rôle de la microflore lors de la chute des cheveux reste à comprendre. Après avoir caractérisé le microbiote du cuir chevelu de 12 hommes sans alopecie et 12 hommes porteur d'une alopécie, (J0), l'objectif de cette étude était d'évaluer la capacité de l'extrait de racine de Lindera strychnifolia (LsR) à restaurer une microflore bactérienne et fongique saine du cuir chevelu après 83 jours (D83) de traitement. MATÉRIEL ET MÉTHODES: La stratégie utilisée était basée sur un séquençage d'ADN à haut débit ciblant l'ARN ribosomal 16S codant pour les bactéries et l'ADN ribosomal de l'espaceur transcrit interne 1 pour les champignons. RÉSULTATS: Une augmentation significative de Cutibacterim acnes (P < 0,05) et Stenotrophomonas geniculata (P < 0,01) chez les sujets AGA a ete note a J0 comparativement aux sujets non alopecique. L'état du cuir chevelu AGA était également associé à une diminution significative (P < 0,05) de l'abondance relative de Staphylococcus epidermidis. Une plus faible proportion du genre Malassezia dans les échantillons correspondant aux cuirs chevelus AGA et une augmentation d'autres genres bactériens (Wallemia, Eurotium) ont également été notées. Au niveau des espèces, l'abondance relative moyenne de Malassezia restricta et Malassezia globosa était significativement plus faible (P < 0,05) dans le groupe AGA. Quatre-vingt-trois jours de traitement ont induit une diminution significative de l'abondance relative de C. acnes (P < 0,05) et S. geniculata (P < 0,01). S. epidermidis a augmenté de manière significative (P < 0,05). Dans le même temps, le traitement LsR a induit une augmentation significative de la proportion de M. restricta et M. globosa (P < 0,05). CONCLUSION: Les données de séquençage soutiennent fortement une composition microbienne différente du cuir chevelu entre les populations témoin et AGA. Les résultats suggèrent que l'extrait de LsR peut être un remède potentiel pour le rééquilibre du microbiote du cuir chevelu.


Asunto(s)
Alopecia/microbiología , Lindera/química , Microbiota , Extractos Vegetales/farmacología , Raíces de Plantas/química , Cuero Cabelludo/efectos de los fármacos , Alopecia/tratamiento farmacológico , Bacterias/clasificación , Bacterias/aislamiento & purificación , Hongos/clasificación , Hongos/aislamiento & purificación , Humanos , Masculino , Persona de Mediana Edad , Extractos Vegetales/uso terapéutico
17.
Curr Pain Headache Rep ; 24(9): 46, 2020 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-32671496

RESUMEN

PURPOSE OF REVIEW: In this review, we examine reported cases of cephalgia alopecia including the initial case report from 2006. The goal is to review the clinical description, pathophysiology, diagnosis, and treatment of cephalgia alopecia. RECENT FINDINGS: The pathophysiology of the headache and hair loss in cephalgia alopecia is believed to be related to neuroregulation of skin and nerve. It is hypothesized that the headache causes recurrent activation of trigeminal and upper cervical branches that innervate the hair cells. The repetitive activation of C fibers results in depletion of substance P and calcitonin gene-related peptide (CGRP), which leads to loss of hair growth promotion and disruption of immune system regulation. A case report suggests that cephalgia alopecia and nummular headache with trophic changes may represent a spectrum of disease involving head pain and cutaneous changes. Cephalgia alopecia is a rare headache disorder described as recurrent burning, stabbing head, and neck pain that is followed by hair loss in the corresponding region of the scalp. The mainstay treatment for both pain and hair loss is OnabotulinumtoxinA (onabotA). A patient's clinical history and response to onabotA treatment is used to make the diagnosis. Future research is needed to examine the hypothesized disease continuum of head pain and cutaneous changes. It will also be beneficial to assess if the grid-like onabotA technique used in nummular headache is effective in cephalgia alopecia. In addition, further studies are needed to assess the proposed pathophysiology.


Asunto(s)
Alopecia/tratamiento farmacológico , Toxinas Botulínicas Tipo A/uso terapéutico , Cefalea/tratamiento farmacológico , Dolor de Cuello/tratamiento farmacológico , Humanos , Cuero Cabelludo/efectos de los fármacos
18.
J Plast Reconstr Aesthet Surg ; 73(12): 2210-2216, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-32536461

RESUMEN

Botulinum toxin is a treatment whose effectiveness has been widely demonstrated in the treatment of facial wrinkles. Its use in alopecia has been much less studied in the literature. Therefore, we carried out a systematic review of the literature in December 2019 in order to index published cases of alopecia patients treated with botulinum toxin. Pub Med, Embase, and Cochrane Library databases were explored. Six studies that included 94 patients were selected. Only one study was prospectively controlled against placebo. Of the 94 patients, 85 were affected by androgenetic alopecia, 8 by alopecia areata, and 1 by radiation-induced alopecia. The doses injected per session varied between 30 and 150 units and the number of sessions between 1 and 12. In the majority of the studies, the injections were carried out in all the muscles of the scalp (frontal, temporal, peri-auricular, occipital). Four studies showed a frank improvement in hair growth. Two of them showed improvement in hair density using an objective endpoint (hair count). The remaining reported studies showed inconclusive results. Patient satisfaction was high across all studies, but this systematic review did not clearly demonstrate the value of using the botulinum toxin in the treatment of alopecia. Subsequent prospective randomized controlled studies are required.


Asunto(s)
Alopecia/tratamiento farmacológico , Toxinas Botulínicas Tipo A/uso terapéutico , Técnicas Cosméticas , Humanos , Cuero Cabelludo/efectos de los fármacos
19.
Trials ; 21(1): 580, 2020 Jun 26.
Artículo en Inglés | MEDLINE | ID: mdl-32586348

RESUMEN

BACKGROUND: Moderate-to-severe postoperative pain following craniotomy has a high incidence in pediatric patients. Such pain may cause agitation, intracranial hypertension, epileptic seizures, and postoperative hematoma, which affect morbidity and mortality. Although scalp nerve block (SNB) achieves satisfactory pain relief except for suboccipital mid-craniotomy in adults and ropivacaine is widely used as a long-acting peripheral nerve block agent in children, there are few studies of SNB with ropivacaine in pediatric patients undergoing craniotomy. In addition, the neurosurgery operation time is relatively long, but the duration of action of SNB is limited. It is generally believed that postoperative SNB is better than preoperative SNB for postoperative analgesia. However, considering the concept of preemptive analgesia, we believe that preoperative SNB may achieve a longer postoperative analgesia effect than we expected. METHODS: This trial is a single-institution, prospective, randomized, controlled, double-blind study. A total of 180 children aged between 1 and 12 years who are undergoing elective craniotomy will be randomly allocated in a 1:1:1 ratio to three groups: group B (preoperative ropivacaine block group), group A (postoperative ropivacaine block group), and group N (nonblocking control group). This randomization will be stratified by age in two strata (1-6 years and 7-12 years). The primary outcome is the total consumption of sufentanil within 24 h after surgery. The secondary outcomes include assessment of pain scores, total consumption of sufentanil and emergency-remedy medicine consumption at observation points, the occurrence of postoperative complications, and the length of hospitalization after surgery. DISCUSSION: This study is designed to explore the effect and feasibility of SNB with ropivacaine for postoperative analgesia in pediatric patients undergoing craniotomy. Further aims are to compare the effects of preoperative and postoperative SNB on postoperative analgesia in order to identify whether there is a preemptive analgesic effect and determine the better time to implement SNB in pediatric patients during craniotomy. TRIAL REGISTRATION: Chinese Clinical Trial Registry ChiCTR1800017386. Registered on 27 July 2018.


Asunto(s)
Anestésicos Locales/administración & dosificación , Craneotomía/tendencias , Bloqueo Nervioso/métodos , Dolor Postoperatorio/prevención & control , Ropivacaína/administración & dosificación , Niño , China , Craneotomía/efectos adversos , Método Doble Ciego , Humanos , Manejo del Dolor/métodos , Dimensión del Dolor , Cuidados Preoperatorios/métodos , Estudios Prospectivos , Ensayos Clínicos Controlados Aleatorios como Asunto , Cuero Cabelludo/efectos de los fármacos , Cuero Cabelludo/inervación , Sufentanilo/uso terapéutico , Resultado del Tratamiento
20.
Reumatol. clín. (Barc.) ; 16(2,pt.2): 180-182, mar.-abr. 2020. ilus
Artículo en Español | IBECS | ID: ibc-194345

RESUMEN

La psoriasis es una frecuente dermatosis inflamatoria que puede asociarse a diversas enfermedades. Estudios recientes señalan que la presencia de enfermedades autoinmunes es mayor, pero es rara la asociación con enfermedades del tejido conectivo. La coexistencia con lupus es infrecuente. Por otra parte, la morfea raramente se ha reportado en pacientes con lupus o psoriasis. Presentamos a una paciente con lupus cutáneo y morfea profunda que posteriormente desarrolló psoriasis, con excelente respuesta a metotrexato y revisamos la literatura


Psoriasis is a common inflammatory dermatosis that may be associated with a number of diseases. Recent studies provide evidence that there is a greater frequency of autoimmune diseases, but association with autoimmune connective tissue diseases is uncommon. The coexistence of psoriasis and lupus erythematosus is rare. Besides, the occurrence of morphea has rarely been reported in patients with lupus or psoriasis. We report a woman with cutaneous lupus and morphea profunda associated with psoriasis, with an excellent response to methotrexate, and review the literature


Asunto(s)
Humanos , Femenino , Anciano , Lupus Eritematoso Cutáneo/diagnóstico , Lupus Eritematoso Cutáneo/patología , Esclerodermia Localizada/patología , Psoriasis/patología , Cuero Cabelludo/patología , Lupus Eritematoso Cutáneo/tratamiento farmacológico , Esclerodermia Localizada/tratamiento farmacológico , Psoriasis/tratamiento farmacológico , Autoinmunidad , Prednisona/administración & dosificación , Corticoesteroides/administración & dosificación , Administración Tópica , Cuero Cabelludo/efectos de los fármacos , Biopsia , Psoriasis/etiología
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