The Comparative Dermal Stimulation Potential of Constant-Volume and Constant-Amount Diluted Calcium Hydroxylapatite Injections Versus the Concentrated Form.

INTRODUCTION: Biostimulation properties of diluted and hyperdiluted calcium hydroxylapatite (CaHA) injections have become increasingly popular. However, the existing data are insufficient to certify a particular dose-response pattern. OBJECTIVE: To assess and compare the dermal stimulation potentials of different concentrations of CaHA injections. MATERIALS AND METHODS: Two independent experiments (Experiment-1: constant injection volume vs Experiment-2: constant CaHA amount) included 4 study groups each, and these experimental groups were placed consecutively on the abdominal skin of a juvenile Yorkshire pig. Histopathological and immunohistochemical stainings were performed on punch biopsy materials collected 4 months after the injection day. RESULTS: The fibroblast count significantly decreased upon dilution from 1:3 to 1:19 in experiment 1 ( p = .000) but still higher than the control group. In experiment 1, the collagen density of the concentrated form was more elevated than the 1:19 dilution and the negative control groups ( p = .034 and .000, respectively) but similar to the 1:3 dilution ( p = .123). No significant difference was observed between the groups regarding collagen density with a standard amount of CaHA (0.2 mL, 30%) ( p > .05). CONCLUSION: Despite the efficacy being more pronounced till 1:3 dilution, hyperdiluted CaHA at any dilution ratio up to 1:19 can provide a higher fibroblast count than the negative control group.

Comparison of fractional erbium:YAG laser-assisted tranexamic acid delivery alone and in combination with oral tranexamic acid in melasma.

Tranexamic acid (TA) emerged as a promising agent for melasma. However, due to its hydrophilic structure, topical TA should be combined with a penetration-enhancing strategy to augment efficacy. To evaluate the efficacy of fractional erbium:YAG laser-assisted delivery (LAD) of topical TA 5% either with or without oral TA treatment in recalcitrant melasma patients. The authors retrospectively assessed the treatment outcomes of melasma patients treated by fractional erbium:YAG LAD of topical TA 5%. Patients receiving a standard protocol including four biweekly laser sessions were eligible. The study included two groups: group 1 patients received oral TA and LAD of topical TA 5%, and group 2 patients received only LAD of topical TA 5%. Two blinded dermatologists reported pre-treatment and post-treatment modified MASI (mMASI) scores. Mean mMASI scores in both group 1 (n = 15) and group 2 (n = 19) were significantly lower at the end of the treatment than baseline values (p = 0.001; p = 0.022, respectively). The decrease of mMASI scores were higher in group 1 (median = 2.1) (64.7%) than in group 2 (median = 1.2) (41.8%) (p = 0.027). Fractional erbium:YAG LAD of topical TA 5% is an efficient treatment regimen for melasma patients recalcitrant to conventional treatment approaches. The implementation of oral TA to this regimen improves the therapeutic outcomes.

Management of nail psoriasis with a single injection of abobotulinum toxin.

Nail psoriasis is challenging; as topical agents generally fail and systemic therapies are doubted especially when the involvement of the skin is rather localized. The response of chronic plaque-type psoriasis to botulinum toxin injections is reported in case series that is essentially explained through the modulation of neurogenic inflammation. Herein, we report the successful treatment results of two cases demonstrating different features of nail psoriasis treated by abobotulinum toxin.

Bioactivity of abobotulinum toxin is preserved till 2 weeks upon storage at room temperature: Half body comparative study on rabbit model.

BACKGROUND: Breakages of the cold chain of botulinum neurotoxin A (BONT-A) preparations is not a rare event and occurs due to several unexpected and unintentional reasons during daily practice and intervention schedules could not be proposed due to the lack of data. OBJECTIVE: To investigate the heat stability of abobotulinum toxin A (AboBONT-A) in terms of efficacy and duration of action upon storage at room temperature (25°C) for 2, 4, and 8 weeks. METHODS AND MATERIALS: Twenty rabbits were divided into four groups and received an injection of ideally stored AboBONT-A (Group 1) and stored AboBONT-A for 2 (Group 2), 4 (Group 3), and 8 weeks (Group 4) at room temperature into the anterior auricular muscle. All rabbits were followed up and photographed by weekly for 16 weeks. Grade of paralysis was evaluated by using a modified visual scoring system. RESULTS: No significant alteration was found in initial potency of stored AboBONT-A at room temperature for up to 4 weeks. Storage at room temperature for 2 weeks did not affect the duration of action (group 2; P = .69), and faster recovery was observed in group 3 and group 4. CONCLUSION: The bioactivity of AboBONT-A is not altered till 2 weeks upon storage at room temperature.

Medical and socioeconomic challenges of private dermatocosmetology clinics during COVID-19 pandemic: A survey from Turkey.

BACKGROUND: Coronavirus 2019 (COVID-19) disease has rapidly spread worldwide with a multitude effects on daily life. Since the transmission risk increases with close contact, some cosmetic procedures are considered high risk and majority of them had to be postponed or canceled in private dermatocosmetology clinics especially during the heavy period of the outbreak. AIMS: We aimed to document the medical and socioeconomic problems emerged in dermatocosmetology clinics in Turkey caused by COVID-19 pandemic and to discuss the management strategies taken by dermatologists. PATIENTS/METHODS: This survey research was conducted with 100 dermatologists who work in private dermatocosmetology clinics. The survey included 38 questions about office re-arrangements including patient admission and office environment, safety precautions taken for cosmetic procedures, management of clinic staff, and financial impact of the pandemic. RESULTS: A remarkable decrease in major cosmetic interest was reported in private clinics; meanwhile, there was an increase in applicants for noncosmetic dermatological complaints. The most avoided cosmetic procedures were application of skin care devices, lasers, chemical peeling, and thread lifting, while botulinum toxin injection was the most performed procedure. Nearly half of the participants had severe financial damage. Of the participants, 55% reported that they worked anxiously during this period and 60% believed that they managed the early period of the pandemic successfully. CONCLUSION: Private dermatocosmetology clinics have to work in a totally different period that they have never experienced before. The pandemic has had serious impacts on both medical and socioeconomic issues which had to be managed carefully.

The perspective of dermatology residents on cosmetology training: A survey.

BACKGROUND: Cosmetology training is an under-fulfilled component of dermatology residency training. AIMS: To determine the availability of cosmetic training for dermatology residents in Turkey, their satisfaction by their cosmetic training and their self-confidence in cosmetic procedures. PATIENTS/METHODS: An online survey of 33 questions was performed between February and March 2019. RESULTS: Out of 329 known dermatology residents, 113 (34.3%) responded. 94.7% of the participants thought cosmetic training should be part of residency training. 50.4% received cosmetology training. Of the participants, 50.4% took this training in their department, 43.4% in conferences and courses and 24.8% in private practice. Skills learned in conferences and cosmetology courses made the biggest contribution to the cosmetic knowledge of the participants. Theoretical lectures on cosmetology were present in 22.1% of the training programs, whereas practical lessons were included in 16.8% of the programs. Theoretical lectures were found to fulfill expectancies of 8% of participants, while this percentage was 31.5% for practical lectures. 54% of residents felt confident in performing at least one type of cosmetic procedure unassisted. CONCLUSIONS: Cosmetic training in clinics providing residency training in Turkey does not meet the expectations of residents. It is of utmost importance for future specialists in dermatology to get proficient on this field and to be able to make cosmetic procedures independently for patient safety and to protect our field of profession. In this context, including cosmetology training into residency training in accordance with a preconceived program, providing practical cosmetic training in training clinics and organization of cosmetic courses for residents by professional associations may help reduce the deficits in this issue.

Two multinational, observational surveys investigating perceptions of beauty and attitudes and experiences relating to aesthetic medical procedures.

BACKGROUND: Data on opinions and experiences of aesthetic medical procedures outside the United States and Western Europe are scarce. AIMS: This study aimed to survey users and non-users of aesthetic procedures in countries where this information is less readily available, to understand attitudes and perceptions relating to beauty. PATIENTS/METHODS: Two independent internet-based observational surveys were conducted. Survey 1: individuals from Colombia, Lebanon, Malaysia, Russia and Turkey who were 'users' or 'non-users' of aesthetic medical procedures. Survey 2: individuals from Colombia, Russia, Thailand, Turkey and the United Arab Emirates who were 'users' of non-surgical aesthetic treatments. RESULTS: Surveys 1 and 2 were completed by 300 and 160 individuals, respectively, most of whom were female (94.0% and 99%). Overall, respondents rated the eyes and smile as the most pleasing male and female facial features. Most participants (mean 82.6%; range 75%-100%) believed maintaining a healthy lifestyle was important for ageing gracefully, and over one-third (36.0%; 28%-47%) believed men age more gracefully than women. The emphasis respondents placed on the importance of physical attributes vs inner feelings, internal beauty and self-confidence varied between countries. Users were often more positive about aesthetic medical procedure outcomes than non-users. Adequate information, good physician communication (including managing treatment expectations), treatment recommendations based on patient need and good aftercare improved treatment satisfaction. CONCLUSIONS: The eyes and smile were key features of attractiveness, but maintaining a healthy lifestyle was consistently considered an important factor for ageing gracefully. Ensuring patients are well informed was a major determinant of treatment satisfaction.

Bier spots in two children.

Bier spots are a distinct pattern of vascular mottling. Most reported cases are in young adults, with the youngest case in the literature at age 15 years. We report two children, ages 11 and 12 years, with Bier spots. Patient 1 was an 11-year-old boy who presented with white spots on the dorsal aspect of his hands. Patient 2 was a 12-year-old girl who presented with similar spots on the dorsal aspect of her left forearm and left hand. In both patients, the spots were visible when extremities were placed in a dependent position and disappeared with elevation of the extremity. Both patients were otherwise healthy.

Topical nadifloxacin 1% cream vs. topical erythromycin 4% gel in the treatment of mild to moderate acne.

Topical antibiotics are the mainstay of therapy in mild to moderate inflammatory acne. Topical erythromycin is one of the most common prescribed topical antibiotics. Nadifloxacin, another topical antibiotic for acne, was recently introduced into the market in our country. In this study, we compared the efficacies and safety of topical nadifloxacin 1% cream and erythromycin 4% gel in acne. A total of 86 patients with mild to moderate facial acne were randomized into two treatment groups. The efficacies of the drugs were assessed by lesion counts. An acne severity index (ASI) was also calculated. In both groups, there was a significant reduction in lesion counts and ASI scores beginning from the first visit at week 4. This reduction continued throughout the 12-week study period. Both treatments were well tolerated. We conclude that when topically applied, both nadifloxacin 1% cream and erythromycin 4% gel are equally effective and safe treatments for mild to moderate facial acne.

A comparative study of focal medium-depth chemical peel versus cryosurgery for the treatment of solar lentigo.

Recently, focal chemical peels with trichloroacetic acid (TCA) have been introduced for the treatment of pigmentary disorders to minimize the side effects such as pain or scarring associated with medium-to-deep chemical peeling. This is a controlled, prospective study to compare the efficacy of a focal medium-depth chemical peel regimen using 70% glycolic acid and 35% TCA with cryosurgery, in the treatment of solar lentigines of the hands. Twenty-five patients were treated with either focal medium-depth chemical peel or cryosurgery, which was randomly assigned to the left or right hand. Clinical improvement was graded by the three blinded investigators 2-months after the treatment. In the focal medium-depth chemical peel treated side, clearing was achieved in four out of 23 patients (17.4%) compared with five out of 23 patients (21.7%) in the cryosurgery treated side. Statistically, the difference between the clinical improvement of solar lentigines with chemical peel and cryosurgery was not significant, according to chi-square test (p = 0.940). However, we suggest that treatment of the solar lentigines with a focal medium-depth chemical peel may be clinically superior to treatment with cryosurgery, due to the paucity of side effects, such as hypopigmentation and pain, associated with the chemical peel regimen.

Efficacy and safety of serial glycolic acid peels and a topical regimen in the treatment of recalcitrant melasma.

Melasma is a common acquired disorder of facial hyperpigmentation. In this study we investigated the efficacy and safety of a combined treatment regimen including serial glycolic acid peels, topical azelaic acid cream and adapalene gel in the treatment of recalcitrant melasma. Twenty-eight patients with recalcitrant melasma were enrolled in a prospective, randomized, controlled trial lasting 20 weeks. The patients of the group receiving chemical peels underwent serial glycolic acid peels in combination with topical azelaic acid 20% cream (b.i.d.) and adapalene 0.1% gel (q.i.d., applied at night). The control group received only topical treatment including topical azelaic acid and adapalene. The clinical improvement was assessed with the Melasma Area Severity Index (MASI) at baseline and monthly during the 20-week treatment period. The results showed a prominent decrease in MASI scores at the end of the treatment in both groups, although the results were better in the group receiving chemical peels (P=0.048). All patients tolerated the topical agents well with minimal irritation observed in the first few weeks of the therapy. Three patients in the glycolic acid peel group developed a mild-degree postinflammatory hyperpigmentation with total clearance at the end of the treatment period. Therefore, the present study suggests that combined treatment with serial glycolic acid peels, azelaic acid cream and adapalene gel should be considered as an effective and safe therapy in recalcitrant melasma.

Lack of effect of cyclosporine in lichen amyloidosis associated with atopic dermatitis.

Lichen amyloidosis associated with atopic dermatitis is rare. We report a case of widespread lichen amyloidosis in association with long-standing refractory atopic dermatitis. Treatment with oral cyclosporine for three months was started, but no clinical and histological improvement was noticed.

Antioxidant enzymes and lipid peroxidation in the scalp of patients with alopecia areata.

Alopecia areata (AA) is an autoimmune inflammatory disease. However, little is known about the alterations in lipid peroxidation and antioxidant enzymes in the scalp of patients with AA. Therefore, the aim of this study was to investigate the status of oxidative stress in the scalp of patients with AA. We measured the levels of thiobarbituric acid reactive substances (TBARS) as lipid peroxidation status, superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) as antioxidant enzymes in the scalp of ten patients with AA and ten control subjects. The levels of TBARS in scalp of patients with AA (3654.1+/-621.2 nmol/g tissue) were significantly higher than those of controls (1210.2+/-188.8 nmol/g tissue) (P=0.002). The levels of SOD (134.8+/-23.8 U/g tissue) and GSH-Px (332.7+/-66.2 U/g tissue) in scalp of patients with AA were also significantly higher than those of controls (63.2+/-8.8 U/g tissue, 112.0+/-18.4 U/g tissue, respectively) (P=0.019, P=0.002, respectively). The mean levels of TBARS, SOD and GSH-Px in early phase of disease were increased 2-fold as compared with late phase of the disease. These results indicate that oxidative status is affected in AA. Lipid peroxidation and antioxidant enzymes may be involved in the pathogenesis of AA. Furthermore, we found high SOD and GSH-Px activities in the scalp of patient with AA. These high levels could not protect the patients against the reactive oxygen species, because lipid peroxidation could not be lowered in AA patients.