Clinical manifestations of alopecia in autoimmune blistering diseases: A cross-sectional study.

Background: Alopecia is a complication of autoimmune blistering diseases (AIBDs) that affects patients' quality of life; however, it has generally been overlooked in patients with severe disease because it is regarded as a cosmetic issue. Objective: To study the epidemiologic data and clinical presentations of alopecia in our cohort of patients with AIBDs. Methods: Forty-one patients with AIBDs were assessed in this cross-sectional study. An assessment tool to collate patient information, including AIBD scalp involvement, trichoscopic findings, and Severity of Alopecia Tool II scores, was used. Results: More than 70% of patients in our cohort had at least 1 type of alopecia, with 10% presenting with a nonspecific (end-stage) scarring alopecia. Elevated Dsg1 ratios were predictive of hair loss in pemphigus vulgaris (P < .001) and increased alopecia was associated with worse disease severity in bullous pemphigoid (P = .001). Limitations: The small sample size and lack of severe cases. Conclusion: There is a likelihood that 1 in 10 patients with AIBDs have a scarring alopecia related to their disease. To our knowledge, this is the first study including alopecia prevalence in patients with bullous pemphigoid, which was not significantly increased despite providing clues to disease severity.

Standard Patch Test Results and Clinical Relevance: A Cross-Sectional Study of 10-year Retrospective Experience.

Background: Allergic contact dermatitis (ACD) is a type IV hypersensitivity reaction, and The European Standard Series (ESS) Patch Test (PT) is widely used in determining the possible responsible allergens causing ACD. The dynamic nature of the industrial products, socioeconomic and environmental factors cause the frequency of common allergens to change over the years and among different regions. Aims and Objectives: This study aimed to retrospectively evaluate the results of ESS PT of our centre in the last decade, and determine the current spectrum of allergens and their clinical relevance. Materials and Methods: The data of patients who underwent ESS PT in our clinic between January 2010 and March 2020 were included in the study. The patient files were examined retrospectively. The clinical relevance was evaluated according to the COADEX system. Statistical analysis used: SPSS for Windows version 23.0 software program. Results: The data of 1037 patients [623 (60.1%) female, 414 (39.9%) male] were analysed. The mean age was 38.34 ± 14.55 years. The five most common allergens were nickel sulphate (23.1%), cobalt chloride (12%), potassium dichromate (9.5%), Fragrance mix II (7.3%) and balsam of Peru (5.7%). According to the COADEX coding system, current relevance was detected in 319 (49.3%) of 646 patients who had a positive reaction to any substance in the patch test. Conclusion: Our study showed that with increasing awareness in society, the tendency to avoid some well-known allergenic substances and consumer products causes changes in common allergens. These results prove the value of long-term surveillance of contact allergy.

Platelet-rich plasma injections in the treatment of male androgenetic alopecia: A randomized placebo-controlled crossover study.

BACKGROUND: Platelet-rich plasma (PRP) treatment for androgenetic alopecia (AGA) has been increasingly used, yet there remains a dearth of data on the effectiveness of this approach. AIM: To compare the efficacy and safety of physically activated PRP injections vs placebo in the treatment of male AGA. METHODS: Twenty-five healthy male patients with AGA were enrolled in a randomized, placebo-controlled, crossover study with the treatments of PRP and placebo. Treatment efficacy was measured by calculating the hair density as the average of two independent blind measurements. RESULTS: In the group that received placebo first (Group 2), we detected a significant increase in hair density at the secondary endpoints after PRP treatment (P = .014). There was a greater proportion of patients with low-grade alopecia in this group (53.3%) compared to Group 1 (30%). CONCLUSION: This study provides data supporting the positive effects of PRP treatment on AGA in males, but further studies are needed to identify those factors that might affect PRP treatment performance, such as the stage of the disease.

Epidemiologic Characteristics of Patients Admitted to Emergency Department with Dermatological Complaints; a Retrospective Cross sectional Study.

INTRODUCTION: Dermatological diseases constitute 5-8% of all emergency department (ED) visits. However, little is known about these patients. The aim of this study is to determine the epidemiologic characteristics of patients admitted to ED with dermatological complaints. METHODS: This is a retrospective cross-sectional study conducted in the ED of a university hospital. Patients over 18 years of age who presented to ED with the following complaints were included in the study: rash, pruritus, and edema sensation in the throat or shortness of breath due to an allergic reaction. Demographics, chief complaints, final diagnoses, triage categories, consultations and hospitalization rates were obtained through computerized database of the hospital. RESULTS: 859 patients were included in the final analysis. 511 (59.5%) patients were female and the mean age of patients was 39.03±15 years. The most common complaint and final diagnosis were skin rash with pruritus (50.9%) and urticaria with drug eruptions (84.5%), respectively. Two patients (0.2%) had an emergent triage category. 804 (93.6%) patients were discharged from ED, while 55 (6.4%) received consultations, resulting in 19 (34.5%) hospitalizations. CONCLUSION: Most of the patients admitted to ED with dermatological complaints are non-urgent and can be treated as outpatients. However, physicians should be alert for emergent causes, as well.

Differential expression of mTOR signaling pathway proteins in lichen planopilaris and frontal fibrosing alopecia.

Dysregulation of the mammalian target of rapamycin (mTOR) signaling pathway has a variety of effects on the immune system and stem cell proliferation. Lichen planopilaris (LPP) and frontal fibrosing alopecia (FFA) are inflammatory scalp conditions resulting in permanent alopecia, which are thought to be related to stem cell damage. Here we investigate the expression of mTOR signaling pathway proteins in human hair follicles of LPP and FFA patients. The expression of mTOR pathway proteins in biopsy specimens from lesional and non-lesional scalp areas of eight LPP and five FFA patients were compared to control scalp biopsies from patients undergoing surgical excisions of sebaceous cysts. We performed immunohistochemical evaluation using a panel of antibodies including mTOR, phospho-mTOR (Ser2448), phospho-p70S6K (Thr389), phospho-4EBP1 (Thr37146), and phospho-tuberin (T1462), as well as Western blot analysis for phospho-p70S6K (Thr389) expression. All evaluated mTOR pathway proteins were similarly expressed in the control and patient non-lesional scalps. While mTOR expression did not show significant alterations between the groups, p-mTOR, p-p70S6K, p-4EBP1, and p-tuberin expressions decreased in the interfollicular epidermis in the lesional scalps of patients. p-p70S6K and p-4EBP1 expression decreased in the outer root sheath (ORS) and inner root sheath (IRS) of the bulge of hair follicles in the lesional scalps of patients. p-mTOR and p-p70S6K expression increased in the lower follicle ORS and bulb of the hair follicles, and p-4EBP1 expression decreased in the bulb of the hair follicles in the lesional scalps of patients. Phospho-tuberin expression increased in the IRS of the bulge and lower follicle ORS of the hair follicles in the lesional scalps of patients, whereas its expression decreased in the bulb. Our results indicate that the mTOR signaling pathway proteins are localized throughout normal hair follicles and that expression of mTOR signaling pathway proteins is altered in the hair follicles of LPP and FFA patients. Further research is required to understand the mechanism by which mTOR operates in the pathogenesis of these diseases.

Efficacy and safety of rituximab therapy in patients with pemphigus vulgaris: first report from Turkey.

BACKGROUND: Pemphigus vulgaris (PV) is a severe, chronic, and potentially life-threatening autoimmune blistering disease that affects the skin and mucous membranes. Rituximab is a monoclonal anti-CD20 antibody which has been used increasingly in the therapy of PV. METHODS: The present study sought to test the efficacy and safety of rituximab as an adjuvant therapy by retrospective analysis of clinical and immunological data for 29 patients with PV who were treated with rituximab between 2010 and 2015. Response to therapy, duration of clinical remission, serology of the response, and adverse effects of rituximab were evaluated. RESULTS: The mean ± standard deviation (SD) follow-up time was 17.48 ± 13.18 months. In all patients, findings showed either a decrease in antibody titers or that antibodies were completely undetectable after therapy. Rituximab use resulted in a significant reduction in steroid dosage during follow-up. At the end of the follow-up period, 26 patients (96.2%) had achieved complete remission with or without therapy (one patient had no follow-up and one patient had died, most probably as the result of a thromboembolic event). In 44.4% of patients, a clinical relapse occurred after a mean ± SD period of 13.1 ± 4.7 months after the initiation of rituximab therapy. Relapses were managed with additional infusions of rituximab. CONCLUSIONS: Rituximab is a beneficial and relatively safe adjuvant treatment for PV that facilitates prolonged clinical remission and has a significant steroid-sparing effect.

Skin infections in 401 renal transplant recipients in southern Turkey.

OBJECTIVES: Renal transplant recipients are predisposed to the development of a variety of skin infections that can result from graft-preserving immunosuppressive therapy. In this study,we aimed to determine the prevalence of skin infections in a group of renal transplant recipients in the Mediterranean region of Turkey. MATERIALS AND METHODS: The medical records of 401 patients followed up by the Transplantation Center at Akdeniz University in Antalya, Turkey, were used in a retrospective analysis. The prevalence of skin infections was calculated, and the effects of age, sex, and time after transplant on skin infections were evaluated. RESULTS: Of the patients studied, 220 (54.9%) had a skin infection. Of 280 infections identified in those individuals, 180 (64.3%) were fungal, 77 (27.5%) were viral, and 23 (8.2%) were bacterial. Pityriasis versicolor was present in 95 patients (23.7%), human papillomavirus infection in 44 (11%), onychomycosis in 23 (5.7%), and fungal toe-web infection in 20 (5%). The duration of immunosuppression significantly affected the prevalence of skin infections, and the mean interval for the development of fungal infections after transplant was earlier than that for viral or bacterial infections (25.8 -/+ 29.3, 50.7 -/+ 36.7, and 52.1 -/+ 47.9 months, respectively). CONCLUSIONS: In this study, pityriasis versicolor was the most common skin infection in renal transplant recipients in our region. Except for the higher prevalence of superficial fungal infections, the overall results in our population agree with those of other similar series.

Discrepant levels of vascular endothelial growth factor in psoriasis patients treated with PUVA, Re-PUVA and narrow-band UVB.

BACKGROUND: Previous reports showed that serum levels of vascular endothelial growth factor (VEGF) are increased in patients with psoriasis. However, to our knowledge, no studies have evaluated the effects of PUVA, Re-PUVA and narrow-band UVB (NB-UVB) treatments on serum levels of VEGF in patients with psoriasis. OBJECTIVE: The aim of the study was to evaluate the influence of PUVA, Re-PUVA and NB-UVB treatments on angiogenic activities in patients with psoriasis by comparing serum levels of VEGF. METHODS: Forty-six patients with psoriasis and 20 healthy subjects were included in the study. Peripheral blood samples were collected before, during and after the therapies. The efficacy of PUVA, Re-PUVA and NB-UVB was delineated by the psoriasis area and severity index. A repeated measure of ANOVA, Mann-Whitney U-test, chi(2) and Pearson's correlation coefficient were used for statistical analysis. RESULTS: The VEGF levels were significantly decreased in the PUVA group at the end of the follow-up period (P<0.001). However, the levels were significantly increased in the groups of NB-UVB and Re-PUVA (P<0.001). CONCLUSIONS: We found that there was a discrepancy during the PUVA, Re-PUVA and NB-UVB treatments. We believe that VEGF plasma levels could not be a useful monitor of psoriasis activity and/or treatment response.