The latest medical research on Procedural Dermatology

The research magnet gathers the latest research from around the web, based on your specialty area. Below you will find a sample of some of the most recent articles from reputable medical journals about procedural dermatology gathered by our medical AI research bot.

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Study of the soothing effects of troxerutin in alleviating skin sensitivity.

J Cosmet Dermatol

Transient receptor potential vanilloid 1 (TRPV1) is associated with skin sensitivity and mainly activated by capsaicin and heat. Interestingly, troxerutin can inhibit TRPV1 activation. However, its efficacy in reducing skin sensitivity remains undetermined.

We evaluated the efficacy of troxerutin in alleviating skin sensitivity using clinical tests and in vitro experiments.

For the in vitro experiment, HaCaT keratinocytes were pretreated with different concentrations of troxerutin, followed by incubation with 50 μM capsaicin for 1, 24, or 48 h. The gene and protein expressions of four inflammatory cytokines involved in skin irritation were determined. Among 35 Korean women with sensitive skin recruited for the clinical trial, 13 were involved in assessing the immediate soothing effects of 0.1% and 0.0095% troxerutin following capsaicin irritation, whereas 22 participated in evaluating the preventive soothing effect of 10% and 1% troxerutin over 4 weeks against capsaicin- and heat-induced irritation. We evaluated the soothing rate using skin redness, visual analog scale, and high temperature sensitive index as evaluation indices.

Troxerutin inhibited the mRNA and protein expressions of cytokines in capsaicin-treated keratinocytes. In the clinical study, 0.1% and 0.0095% troxerutin promptly alleviated capsaicin-induced skin redness, whereas 10% troxerutin notably decreased both the visual analog scale and high temperature sensitive index for capsaicin- and heat-related irritation. However, 1% troxerutin was only effective in reducing the visual analog scale in response to capsaicin irritation.

Troxerutin can inhibit TRPV1 activation in clinical and in vitro tests.

Genotypic spectrum of albinism in Mali.

Pigment Cell and Melanoma Research

Albinism is a phenotypically and genetically heterogeneous condition characterized by a variable degree of hypopigmentation and by ocular features ...

Exploring the landscape of AI adoption in cosmetic medicine and surgery: Insights from the 25th IMCAS Congress (International Master Course in Aging Science).

J Cosmet Dermatol

The integration of artificial intelligence (AI) into cosmetic medicine promises to revolutionize the field by enhancing diagnosis, treatment planning, and patient care.

This manuscript explores the current adoption and perceptions of AI among professionals in the realm of cosmetic dermatology and plastic surgery, utilizing insights from the IMCAS Congress 2024 attendees.

A survey employing a digital questionnaire with 14 questions was distributed among attendees of the IMCAS Congress 2024 to evaluate their familiarity with AI, usage in clinical practice, perceived advantages, and concerns regarding data privacy and security.

The survey revealed that a majority of respondents are familiar with AI's potential in cosmetic medicine, yet there is a notable discrepancy between awareness and actual application in practice. Concerns over data privacy and a pronounced need for further training were also highlighted.

Despite recognizing AI's benefits in cosmetic medicine, significant barriers such as data privacy concerns and the need for more comprehensive training resources must be addressed. Enhancing education on AI-applications and developing strategies to mitigate privacy risks are imperative for leveraging AI's full potential in improving patient care and outcome in cosmetic medicine.

Efficacy of a New Hyaluronic Acid Dermal Filler on Nasolabial Folds Correction: A Prospective, Comparative, Double-Blinded Clinical Trial.

Dermatol Surg

Hyaluronic acid-based dermal fillers are the cornerstones of wrinkle correction and facial contour redefinition.

To assess the efficacy and safety of ESTLF compared with RESL for the treatment of nasolabial folds (NLFs).

In this prospective, split-face, randomized, investigator and subject-blinded trial, 45 subjects with moderate-to-severe symmetrical NLFs were randomized to ESTLF on one side of the face and RESL on the other side and were followed up for 9 months. The primary end point was change in WSRS score from the baseline to Month 1 (M1). Secondary end points included changes in WSRS score at other time points, aesthetic improvement, wrinkle volume quantification, adverse events, and local tolerance.

The efficacy difference between ESTLF and RESL at M1 was in favor of ESTLF (-0.16, CI, -0.28 to -0.03]), demonstrating its noninferiority. Considering other time points, significant differences were observed at 3 and 6 months for ESTLF, assessed with WSRS, GAIS, or NLF volume quantification. Both treatments were well tolerated.

ESTLF is effective and well tolerated for the treatment of NLFs.

Ultrasonographic Study of the Submandibular Gland for Botulinum Neurotoxin Injection.

Dermatol Surg

Hypertrophied submandibular glands provide a bulky contour to the lower face. Botulinum neurotoxin injection methods are commonly used for facial contouring; however, no studies have suggested injection points because of the lack of delicate anatomical information on the submandibular gland.

The aim of this study was to determine the optimal injection site for botulinum neurotoxin injections in the submandibular gland.

Anatomical considerations when injecting botulinum neurotoxin into the submandibular gland were determined using ultrasonography. The thickness of the submandibular gland, its depth from the skin surface, and the location of the vascular bundle were observed bilaterally in 42 participants. Two cadavers were dissected to measure the location of the submandibular gland corresponding to the ultrasonographic observation.

The thickest part of the submandibular gland measured 11.12 ± 2.46 in width with a depth of 4.63 ± 0.76. At the point where it crosses the line of the lateral canthus, it measured 5.53 ± 1.83 in width and 8.73 ± 1.64 in depth.

The authors suggest optimal injection sites based on external anatomical landmarks. These guidelines aim to maximize the effects of botulinum neurotoxin therapy by minimizing its deleterious effects, which can be useful in clinical settings.

Evaluation of Facial Aging in Different Age and Gender Groups With Computed Tomography-Based Calvarium and Face Measurements.

Dermatol Surg

The human face is a complex area formed by the combination of many different components and varies among individuals according to gender, age, and ethnicity.

The aim of this study was to evaluate age-related changes in the facial and calvarial bones in a large sample of both genders.

The retrospective study included nontraumatic brain computed tomography scans of 280 Turkish adults. Participants were divided into 7-decade groups with the age ranging from 20 to 89 years. Measurements of the face and calvaria were recorded, and calvarial volume was calculated. The relationship of these parameters with age and gender was examined.

Statistically significant differences were observed in all the facial and calvarial measurements, except the transverse diameter of the head, with increasing age in both genders. Regardless of age, no significant differences were found in facial and calvarial measurements between genders. In addition, there was a significant decrease in the calvarial volume in both genders after the seventh decade of life.

The structure of the face and calvarium continues to change and differentiate throughout life. Taking these changes into account during surgical and facial rejuvenation procedures can help predict outcomes and avoid the use of incorrect techniques.

Oral tranexamic acid treats papulopustular rosacea by improving the skin barrier.

J Cosmet Dermatol

Papulopustular rosacea (PPR) is a chronic inflammatory disease with a significant impact on facial aesthetics. An impaired skin barrier is an important factor in the development and exacerbation of PPR. Tranexamic acid (TXA) has immune regulatory and anti-inflammatory effects, inhibits angiogenesis and endothelial hyperplasia, and promotes skin barrier repair.

We investigated the efficacy and safety of oral TXA for PPR treatment.

In total, 70 patients were randomly assigned to receive traditional therapy plus oral TXA or traditional therapy alone for 8 weeks, with a 4-week follow-up period. The subjective improvement in rosacea was assessed using the clinical erythema assessment (CEA), investigator's global assessment (IGA), patient self-assessment (PSA) score, rosacea-specific quality of life (RQoL) score, and global aesthetic improvement score (GAIS). An objective improvement in rosacea was assessed using skin hydration, trans-epidermal water loss (TEWL), clinical photography, and an eight spectrum facial imager.

CEA/IGA/PSA, dryness, and RQoL scores were significantly lower and GAIS was higher in the TXA group than in the traditional therapy group. Furthermore, oral TXA significantly improved skin barrier function, increased skin hydration, and decreased TEWL, with no significant side effects. Notably, we observed better outcomes and a greater improvement in skin barrier function with TXA treatment in patients with dry-type rosacea than in patients with oily skin.

The addition of oral TXA to traditional therapy can lead to rapid and effective improvements in PPR, which may be attributed to improvements in skin barrier function.

Patient-reported outcomes of topical finasteride/minoxidil treatment for male androgenetic alopecia: A retrospective study using telemedical data.

J Cosmet Dermatol

Oral finasteride and topical minoxidil are the current standard of care for male androgenetic alopecia and a combination of the two treatments can be considered for greater efficacy. Clinical trials of topical finasteride have also yielded promising results, but routine care data are lacking.

To examine patient-reported outcomes of men with androgenetic alopecia who received topical finasteride admixed with minoxidil compared to the current standard of care (oral finasteride).

Retrospective, cross-sectional study with data from a German direct-to-consumer teledermatology platform between December 2021 and January 2023. Patient-reported outcomes were collected through voluntary follow-up questionnaires provided after 6 weeks on topical finasteride/minoxidil or oral finasteride treatment.

A total of 1545 patients who received topical finasteride/minoxidil treatment were included; 238 (15.4%) participated in the follow-up questionnaire. At week six, 62.2% (148/238) reported positive changes in their hair appearance, and 44.1% (105/238) reported an improvement of self-esteem. Treatment-related adverse events were reported in 11.8% (28/238). Full treatment adherence was observed in 74.4% (177/238). Comparing the topical treatment group to those receiving oral finasteride, lower treatment adherence was reported, along with higher rates of local adverse events; no difference was found in the incidence of sexual adverse events.

Based on patient-reported outcomes, topical finasteride/minoxidil seems to be effective and well tolerated, but not superior to oral finasteride. Lower treatment adherence for topical usage must be considered when considering treatment options. Additional real-world data are needed to further evaluate the efficacy and safety of topical finasteride/minoxidil.

Effects of EGFR-TKI on epidermal melanin unit integrity: Therapeutic implications for hypopigmented skin disorders.

Pigment Cell and Melanoma Research

Epidermal melanin unit integrity is crucial for skin homeostasis and pigmentation. Epidermal growth factor (EGF) receptor (EGFR) is a pivotal playe...

Conversion of a Validated Melanoma Risk Stratification Tool Into a Tablet-Based Patient Questionnaire for Targeted Melanoma Screening in Primary Care Settings: A Pilot Study.

Dermatol Surg

Risk stratification can identify individuals in primary care settings who are at increased risk of developing melanoma.

Converting and implementing a validated risk stratification tool as a patient self-administered tablet-based survey.

Mackie risk stratification tool was transformed into a patient questionnaire. The questionnaire was completed in academic dermatologist practices by patients and dermatologists and revised to optimize sensitivity and specificity using physician assessment as gold standard. The optimized survey was administered before routine primary care visits during 2019 to 2021. High-risk patients were referred to dermatology. The number needed to screen (NNS), sensitivity, specificity, positive predictive value, and negative predictive value to identify a melanoma were calculated.

Of the 7,893 respondents, 5,842 (74%) and 2,051 (26%) patients were categorized as low-risk and high-risk population, respectively. The NNS to identify 1 melanoma was 64 in the high-risk population.

Incorporating self-administered patient-risk stratification tools in primary care settings can identify high-risk individuals for targeted melanoma screening. Further studies are needed to optimize specificity and sensitivity in more targeted populations.

Complications of collagen biostimulators in Brazil: Description of products, treatments, and evolution of 55 cases.

J Cosmet Dermatol

Complications of temporary and permanent fillers have been extensively studied. However, there is a lack of comparative data regarding poly-L-lactic acid (PLLA), calcium hydroxyapatite (CaHA), and polycaprolactone (PCL) known as collagen biostimulators.

This study addressed the complications of collagen biostimulators concerning their diagnosis, type of product, treatment, and monitoring.

An electronic questionnaire was sent to Brazilian dermatologic ultrasound experts to identify complications related to biostimulators. The type of biostimulator, location of application, number of vials injected, application plan, time between injection treatment and complication, injector profile, treatment, and prognosis were assessed.

Fifty-five cases were identified, of which 49.1% were caused by PLLA-Elleva®, 23.6% by CaHA (alone or combined with hyaluronic acid), 20.0% by PLLA-Sculptra®, and 7.3% by PCL. The most affected area was the face (72.7%), with nodules being the most common clinical form (89.1%), generally occurring late (60.0%) (>1 month). Only one case was injected at an incorrect depth (musculoaponeurotic system-SMAS). Despite several treatments, including saline (45.5%), hyaluronidase (25.5%), diluted corticosteroids (23.6%), and energy-based devices (10.9%), only five cases showed complete resolution. Hyaluronidase was beneficial in complications related to fillers when there was an association of calcium hydroxyapatite with hyaluronic acid (p < 0.01).

Complications from collagen biostimulators were more common on the face, typically manifesting about 1 month after treatment. These issues seemed to be related more to the properties of the products rather than inadequate technique. Furthermore, hyaluronidase demonstrated efficacy only in cases where there was an association with HA.

Efficacy and safety of mesotherapy with tranexamic acid versus vitamin C in the treatment of melasma: A meta-analysis and systemic review.

J Cosmet Dermatol

The exact pathogenesis of melasma is not yet known, and its treatment remains challenging. Mesotherapy with tranexamic acid (TXA) and vitamin C was both reported to have certain effects on melasma. In spite of that several articles have compared the efficacy and safety of the two drugs on melasma, most of them were clinical study with small sample size.

To evaluate the efficacy and safety of mesotherapy with TXA versus vitamin C in treating melasma through meta-analysis and systemic review.

The authors searched PubMed, Web of Science, Springer, and ScienceDirect for studies that compared mesotherapy with TXA versus vitamin C as a treatment for melasma. Primary outcomes were change in melasma area and severity index (MASI) before and after the treatment.

Finally, five studies with a total of 127 patients were included in the systematic review. There was no statistic difference in the change in MASI score between the TXA and vitamin C groups (mean difference, 0.16; 95% CI, -0.79 to 1.11).

Mesotherapy with both TXA and vitamin C is safe and effective in the treatment of melasma.