Current challenges in diagnosing and treating infectious skin diseases - a case series. / Choroby zakazne skóry jako wciaz aktualny problem diagnostyczny i terapeutyczny ­ przeglad nietypowych przypadków klinicznych.

Infectious skin diseases constitute a significant public health problem. Despite the systematic development of many modern diagnostic and therapeutic tools, they still pose a serious challenge for clinicians. Due to their prevalence and mild course in most cases, they are often marginalized, which can delay their diagnosis and treatment initiation. Such an approach in more clinically advanced cases can have serious consequences, sometimes leading to tragic outcomes. This work presents a series of four cases of common infectious skin diseases with an unusually atypical clinical picture: the history of a 49-year-old female patient with recurrent erysipelas of the right lower leg co-occurring with a SARS-CoV-2 infection, a 75-year-old male patient with a generalized form of herpes zoster, a 38-year-old female patient with a complicated severe course of head lice, and a 34-year-old male patient with a severe form of post-steroid mycosis. In each of these cases, difficulties in making the correct diagnosis were highlighted, even though they represent some of the most common bacterial, viral, parasitic, and fungal dermatoses. The paper discusses the risk factors for these diseases, the pathophysiology of their atypical course, the effects and challenges in the therapeutic approach conducted. Infectious skin dermatoses require aggressive treatment and should never be underestimated.

Cutaneous Toll-like Receptor 9 Pre-Defines Hydroxychloroquine Dosage in Patients with Both Discoid and Subacute Lupus Erythematosus.

Background and Objectives: Cutaneous lupus erythematosus (CLE) presents clinically heterogeneous manifestations, partially explained by the different expression of Toll-like receptors (TLRs) type 8 and 9, located to endosomal compartments where they are poised to recognize microbial nucleic acids. This disease is empirically treated with hydroxychloroquine (HCQ), which is hallmarked with a safe and effective profile, but induces a slow and sometimes clinically insufficient therapeutic response. Currently, no biomarkers predictive of response are validated or even proposed in the scientific literature. We aimed to evaluate endosomal TLR type 7, 8 and 9 as predictive biomarkers of HCQ efficacy. Materials and Methods: We conducted a case-control study comparing CLE patients retrospectively assigned to three subgroups based on 3-6-month Cutaneous LE Disease Area and Severity Index (CLASI) reduction upon treatment with HCQ (I = <40% vs. II = 40-80% vs. III = >80%). Before HCQ, lesional skin specimens were collected in untreated CLE and through immunohistochemistry; TLR-7, -8 and -9 expression was evaluated in the epidermis and the lymphocytic infiltrate was evaluated in the dermis. Results: Sixty-six lesional skin biopsies were compared with healthy controls. CLE patients displayed lower epidermal expression of total TLR 8 and 9 as well as infiltrating TLR-8, TLR9 + lymphocytes compared to controls. High HCQ responders differed from low responders for TLR-9 positivity (high vs. low) and for the lymphocytic dermal infiltrate (high vs. low). Conclusions: TLR9 could be envisaged as a possible biomarker to predict HCQ response level and dosage in CLE patients.

Clinical aspects of the treatment of atopic dermatitis with topical glucocorticoids and calcineurin inhibitors - a pilot questionnaire study.

Atopic dermatitis (AD) is the most common inflammatory skin disease. However, recent reports concerning the simple clinical aspects of treatment with topical glucocorticosteroids (TCS) and calcineurin inhibitors (TCI) are lacking. The objective of this study is providing an update on these characteristics of AD management. A group of 150 adults suffering from AD treated with TCS during last year was asked to fill an anonymous questionnaire. The course of topical treatment was analyzed in the context of the severity of symptoms and the knowledge of the patients about therapy. During the last year, the majority of patients (66%) were treated with class IV TCS; however, in the last two weeks, class I TCS was used the most frequently (35%). Only 11% were familiar with the concept of intermittent therapy and 4% used the fingertip unit (FTU). In total, 77% of them used TCI. Most of the patients used the same class of TCS permanently. Unfortunately, patients are unaware of simple approaches (like intermittent therapy or FTU) that increase both the effectiveness and safety of the treatment. Practicians should be aware of these problems to identify and eliminate them, primarily through the education of patients.

Clinical characteristics of elderly patients with atopic dermatitis - a retrospective observational study.

Atopic dermatitis (AD) is a chronic, recurrent inflammatory dermatosis. The most characteristic symptoms of the disease include itch, eczematous eruptions and excessive dryness of the skin. Elderly patients with AD represent a poorly characterized population because the physiological ageing, possible comorbidity and polypharmacy modify the clinical presentation typically observed in the younger age groups. The aim of the study is to comprehensively assess the clinical characteristics of elderly patients (>60 years old) with AD. Data were collected from 26 AD patients treated in the Department of Dermatology of the University Hospital in Krakow. Late-onset AD with generalized/prurigo lesions was the most predominant phenotype. Skin biopsy was required in 15 (58%) patients in the differential diagnosis process. Allergic rhinitis, a positive family history of atopy and xerosis were associated with a higher number of hospitalizations during the year prior to the last admission (p = 0.034, p = 0.046 and p = 0.036, respectively). Xerosis was more prevalent among subjects with polypharmacy (p = 0.046) and higher serum total IgE concentration (p = 0.048). AD in elderly patients is a new phenotype of the disease that requires careful differential diagnosis. Aged patients with an individual or family history of atopy, due to the increased incidence of severe exacerbations of AD, may benefit from the introduction of proactive therapy.

Pruritus Characteristics in Severe Atopic Dermatitis in Adult Patients.

Atopic dermatitis (AD) is classified as a most common inflammatory skin disease. The condition is characterized by recurrent eczematous lesions and intense pruritus or itch, a hallmark of AD. The aim of this study was to identify the provoking factors of itch in severe AD adult patients. There were 34 adult patients suffering from AD of the median age of 40 years enrolled into the study and a control group that consisted of 20 healthy subjects. The severity of AD was assessed with the SCORing Atopic Dermatitis (SCORAD) index, pruritus intensity was assessed on a visual analog scale (VAS), and itch aggravating factors were assessed with a questionnaire. Specific IgE (sIgE) antibodies and interleukin IL-33 were measured in venous blood. We found that all the patients with severe AD had intensive itch (VAS: 9-10 points) during the whole day and 30 (88.2%) patients had it during nighttime. The most significant factors aggravating itch were the following: dry skin (27 patients; 79.4%), exposure to dust mite (22 patients; 64.7%,), and emotional distress (17 patients; 50%). Moreover, there was a positive correlation between the intensity of itch and the level of sIgE antibodies to dust mite (p < 0.001). The content of IL-33 was significantly higher in AD patients with severe skin lesions. This exploratory study shows that skin dryness, dust exposure, and distress play an essential role in the exacerbation of AD in the adult population.

Pathophysiology and clinical management of pellagra - a review.

Pellagra is a rare disease caused by niacin deficiency or a disruption of its metabolism. Its manifestations are dermatitis with pronounced photosensitivity, gastrointestinal symptoms, and neuropsychiatric ailments. Currently pellagra is developed in people who chronically abuse alcohol or are treated with medications from specific pharmacological groups (immunosuppressive and anti-tuberculosis drugs). Although the root cause of the disease was established in the mid-twentieth century, a detailed explanation of the processes leading to the development of symptoms has not yet been proposed. They include complex abnormalities at the molecular, metabolic, and immunological levels. Diagnostics is based primarily on the clinical presentation of the disease, while auxiliary tests play secondary role. The low prevalence of the disease, meaning that physicians are unfamiliar with its recognition, often leads to delays in diagnosis and appropriate treatment. The therapy is causal and based on administering niacinamide. Failure to implement treatment in the early stages of the disease leads to the patient's death. The aim of this literature review is to summarize the current state of knowledge on the pathomechanisms of pellagra, highlighting the clinical implications, and key elements of diagnostic and therapeutic management that are important in the treatment of pellagra patients.

Depression and Serum Content of Serotonin in Adult Patients with Atopic Dermatitis.

Atopic dermatitis (AD) is a chronic skin disease with the etiology not yet conclusively established. Recent reports demonstrate the role of serotonin (5-hydroxytryptamine; 5-HT) in the pathogenesis of AD. The aim of this study was to investigate the relationship between the serum content of serotonin and depression in adult patients suffering from severe AD. There were 31 patients of the median age of 41 years enrolled into the study, who suffered from AD since childhood, and a control group that consisted of 14 healthy subjects. AD was diagnosed on the basis of Hanifin and Rajka criteria. The severity of skin lesions was assessed with the SCORing Atopic Dermatitis (SCORAD) index and that of depression with the Montgomery-Åsberg Depression Rating Scale (MADRS) questionnaire. We found that all of the patients with severe AD characterized by SCORAD >50 had depression. Depression was classified as mild and moderate according to the MADRS score. Serotonin content was significantly lower in the patients with severe AD (MADRS >12), and there was an adverse relation between the serotonin content and the score of depression, the features not noticed in the control group. We conclude that severe AD, as expressed by the intensification of skin lesions, associates with depression and with the lowering of serum serotonin content. The findings point attention to the cognitive and affective problems in AD patients which could worsen the course of the skin disease.

Cat Allergy as a Source Intensification of Atopic Dermatitis in Adult Patients.

Atopic dermatitis (AD) is characterized by exacerbations and remissions of eczematous skin, underlain by impaired skin barrier and aberrant Th2-type and Th-22 cytokine production. A number of allergens, in particular contact with fur animals, may aggravate the disease. This study seeks to define the influence of having a regular contact with a pet cat at home on the severity of symptoms and signs of AD. We addressed the issue using the SCORing Atopic Dermatitis (SCORAD) and visual analog (VAS) scores to assess the intensity of pruritus and by measuring the blood content of specific IgE and IL-4, IL-13, and IL-22 cytokines. The study group consisted of 47 adult patients suffering from AD since childhood, 18 of whom declared having regular contact with a cat and the remaining 29 who denied it. There also was a control group consisted of 16 healthy volunteers with no AD signs. The SCORAD and VAS scores were significantly higher in patients in contact with a cat than in those without it (median SCORAD 61.0 vs. 50.4 and VAS 9.0 vs. 4.0 points, respectively). The sIgE of a majority of patients (94.4%) in contact with a cat was in Class V-VI, compared with just a few patients (3.4%) with no such contact, having sIgE in the same classes (p < 0.001). Significant correlations were revealed between SCORAD and VAS scores and the class level of serum sIgE value. In addition, IL-22 was a single elevated cytokine, only in the patients in contact with a cat, and it correlated with pruritus severity. The results of the study underline the need to beware of the cat fur allergen, and they stress forethought and caution in acquiring and keeping a pet cat by patients suffering from AD.

Is the presence of a fur animal an exacerbating factor of atopic dermatitis in adults?

Atopic dermatitis is one of the most common inflammatory dermatoses in children and adults. To date, no clear relationship between the severity of AD and the exposure to dog and guinea pig-derived allergens has been established. AIM: The aim of the study was to assess the association between the specific serum immunoglobulin E levels (against dog and guinea pig) and the grade of skin symptoms measured with the SCORAD and VAS scales in the population of adult patients suffering from atopic dermatitis. MATERIALS AND METHODS: The study was performed in the group of 47 patients suffering from atopic dermatitis since infancy (30 women and 17 men). Concentration of IgE was measured by the fluoroenzymatic immunoassay. The Mann-Whitney's test was used to compare the distribution of specific IgE concentration and the distribution of atopic dermatitis grade. RESULTS: The statistically significant correlation between SCORAD and VAS scales, and the measured specific IgE concentrations for investigated fur animals was found. CONCLUSIONS: The study demonstrated that in the patients with atopic dermatitis the concentration of specific IgE was correlated with severity of the disease symptoms, including itch. This enables forecasting the course of the disease and selecting a group of patients who should immediately reduce their contact with allergen.

Can the blood tryptase be an indicator of the severity of atopic dermatitis?

Atopic dermatitis (AD - atopic eczema) is a chronic inflammatory dermatosis resulting from complex genetic, epigenetic and environmental interactions with an overlapping defect in the epidermal barrier.AD is one of the most common inflammatory dermatoses in children and adults. AIM: The aim of the study was to assess the relationship between serum basal tryptase (sBT) and total IgE (tIgE) level in blood serum and the severity of lesions (SCORAD; SCORing atopic dermatitis). MATERIALS AND METHODS: The study was performed in the group of adult patients (57 people, F/M: 30/27; average age: 37.5 years) and in the control group (10 people, K/M: 6/4; average age: 44 years). Diagnosis of atopic dermatitis was established by a dermatologist-allergist specialist based on the criteria of Hanifin and Rajka. The severity of lesions was determined on the SCORAD scale (SCORing atopic dermatitis). RESULTS: The distribution of tryptase concentration did not differ statistically significantly between patients with various disease severity and the control group also the severity of skin lesions was significantly higher (p<0.001) in patients whose tIgE level exceeded 3500 IU / ml. Conclusion. sBT did not prove to be a useful biomarker in assessing. CONCLUSIONS: sBT did not prove to be a useful biomarker in assessing severity of AD. The present study demonstrated that in the patients with atopic dermatitis the concentration of total IgE was correlated with severity of the disease symptoms.

Is vitamin D concentration an indicator of the severity of atopic dermatitis and chronic spontaneous urticaria in adults?

Atopic dermatitis (AD) and chronic spontaneous urticaria (CSU) are common chronic and recurrent dermatoses. The role of vitamin D in the immunological processes, including the development of inflammation, has been the subject of numerous studies. The feasible measurement of vitamin D serum concentration and possibly supplementation necessitates the assessment of its impact on the clinical severity of mentioned diseases. AIM: The aim of the study was to determine the relationship between blood serum vitamin D concentration and the severity of clinical symptoms in the group of adults suffering from AD or CSU. MATERIALS AND METHODS: The study was conducted in 2018 on groups of patients suffering from AD or CSU. Serum vitamin D concentration was determined by electrochemiluminescence assay. Student's t-test was adopted to compare vitamin D levels between groups. Spearman's rank correlation coefficient was used to assess the correlation between vitamin D concentration and the severity of AD (according to the SCORAD scale) and CSU (according to the UAS 7 scale). RESULTS: There was not found any statistically significant relationship between the severity of skin lesions scores in the course of AD and CSU and serum vitamin D concentration.

The level of total immunoglobulin E as an indicator of disease grade in adults with severe atopic dermatitis.

Atopic dermatitis is one of the most common inflammatory dermatoses in children and adults. The disorder is associated with significant worsening of quality of life. Due to the frequently suggested pathogenetic relationship with atopic dermatitis, immunoglobulin E seems to be an adequate indicator of the disease. AIM: The aim of the study was to assess the association between the total serum immunoglobulin E levels and the grade of skin lesions measured with the SCORAD and oSCORAD scales in the population of adult patients suffering from severe atopic dermatitis. MATERIALS AND METHODS: The study was performed in the group of 31 patients suffering from atopic dermatitis since early childhood (17 women and 14 men) in 2017. Total IgE was measured by the fluoroenzymatic immunoassay. The Spearman's rank correlation coefficient was used to determine the power of the relationship between the concentration of total IgE and atopic dermatitis severity. The Kruskal-Wallis and Mann- Whitney's tests were used to compare the distribution of IgE concentration and the distribution of atopic dermatitis grade. RESULTS: The statistically significant correlation between SCORAD/ oSCORAD and the measured IgE levels was found in the patients with the IgE level above 3500 IU/ml (19 subjects). CONCLUSIONS: The present study demonstrated that in the patients with severe extrinsic atopic dermatitis, the concentration of total IgE was correlated with the severity of the disease. This suggests an opportunity of employing IgE as an atopic dermatitis biomarker.

Melatonin as an Antioxidant and Immunomodulator in Atopic Dermatitis-A New Look on an Old Story: A Review.

Atopic dermatitis (AD) is common inflammatory dermatosis, typically with chronic and recurrent course, which significantly reduces the quality of life. Sleep disturbances are considered to be remarkably burdensome ailments in patients with AD, and are routinely included during assessment of disease severity. Therefore, endogenous substances engaged in the control of circadian rhythms might be important in pathogenesis of AD and, possibly, be used as biomarkers of disease severity or even in development of novel therapies. Melatonin (MT), the indoleamine produced by pineal gland (but also by multiple other tissues, including skin), plays a pivotal role in maintaining the sleep/wake homeostasis. Additionally, it possesses strong antioxidant and anti-inflammatory properties, which might directly link chronic skin inflammation and sleep abnormalities characteristic of AD. The objective of this work is to systematically present and summarize the results of studies (both experimental and clinical) that investigated the role of MT in the AD, with a focus on the antioxidant and immunomodulatory effects of MT.

Adipokines as Biomarkers of Atopic Dermatitis in Adults.

Atopic dermatitis (AD) is characterized by chronic, relapsing, pruritic skin inflammation and does not have a well-understood pathogenesis. In this study, we addressed the contribution of adipokines to AD eczema based on the assessment of blood levels of adiponectin, resistin, leptin, lipocalin-2, and vaspin in adult non-obese patients suffering from chronic extrinsic childhood-onset AD. We investigated 49 AD patients with a median age of 37 years. The control group consisted of 30 age-matched healthy subjects. Adipokines were assessed in the serum by ELISA assays and the severity of AD with the SCORing Atopic Dermatitis (SCORAD) index. We found that adiponectin and resistin decreased and leptin appreciably increased in AD patients when compared to those in healthy subjects. Further, the levels of adiponectin and resistin were inversely related to the intensity of eczema. In conclusion, apart from the formerly investigated role of leptin in AD, this study points to adiponectin and resistin as the potential candidate adipokine biomarkers involved in shaping eczema intensity and severity, which may help predict disease exacerbations and enable the development of effective targeted therapeutic interventions.

[Aggravating factors of rosacea]. / Czynniki zaostrzajace przebieg tradziku rózowatego.

Rosacea is a chronic, inflammatory skin disease which is mainly localized in the central region of the face. Papules and pustules appear on the erythematic ground. Rosacea is common in population. Four subtypes of rosacea (erythematoteleangiectatic rosacea, ETR; papulo - pustular rosacea, PPR; ocular rosacea and phymatous rosacea) are classified (according to current classification) and one variant rosacea (granulomatous rosacea, GR). It is considered that an attempt to determine of triggering factors of rosacea should be the first step to treatment. Then it should be tried to eliminate contact with them. The aim of this study was an analysis of triggering factors of rosacea. 43 women and 26 men treated in the Dermatology Outpatient's Clinic of Jagiellonian University School of Medicine in Cracow were enrolled in the study. All patients were asked which factors trigger skin changes according to them. Patients mentioned most often: stress (58 percent), sun exposure (56.5 per. cent), alcohol (33.3 percent), exercise (29 percent), drinking coffee (21.7 percent) and hot meals (20.3 percent). They regarded the sun as the most strongly aggravating factor of rosacea (29.2 percent). It seems, that elimination and reduction of contact with aggravating factors is still an undervalued aspect of rosacea's treatment. Patients' motivation for use of prevention seems to be also very important. Knowledge about aggravating factors of rosacea, coming directly from patients' observations, may help in more effective treatment.

[Erysipelas--course of disease, recurrence, complications; a 10 years retrospective study]. / Róza--przebieg choroby, nawroty, powiklania; 10-letnia obserwacja retrospektywna.

OBJECT: we studied erysipelas by conducting a retrospective analysis of 319 patients with erysipelas treated in Dermatology Department Jagiellonian University in Krakow between 1994 and 2004. METHODS: we performed a retrospective analysis of 319 patients hospitalized for erysipelas in our institution during a 10 year period. The statistical significance was examined by chi square and Kruskal-Wallis test (significant value p< or =0.05). RESULTS: there were 35% males and 65% females patients. Median age was 63 years. Most of the female patients were pensioners (32.7%), most of the male patients were physical workers (40.5%). Summer time was the most frequent season for hospitalization (32.3%), and winter time was the rarest (17%). Most of the erysipelas has involved the lower limb (59.2%). There was significant dependence between the regional risk factors and occupation. The recurrent cases occurred in 67.3% cases with lower limb localisation in 69.44% cases. The most rare recurrent cases found on upper limb (6%). The systemic risk factors were associated with recurrent erysipelas in 69.44%. Complications, such as abscess formation, lymphangitis, venous insufficiency, osteitis, arthritis, septic tendonitis and elephantiasis were found in 25%. CONCLUSIONS: after review of the literature and our experiences it is clear that there is a strong need for interdisciplinary treatment to avoid various potential complications of erysipelas.

Association of Interleukin-10 promoter polymorphisms with neurosyphilis.

Interleukin 10 (IL-10) is a potent anti-inflammatory cytokine. Increased production of IL-10 has been found in late syphilis, presumably creating favorable conditions for bacteria persistence. Single-nucleotide polymorphisms (SNPs) within the promoter of IL-10 gene have been found to influence IL-10 production. We investigated whether SNPs in the IL-10 gene promoter are associated with cerebrospinal fluid (CSF) levels of IL-10 and neurosyphilis. Polymorphisms in the gene for IL-10 (G→A mutation at the position -1084 and C→A mutation at the position -592) were sought in 35 patients with syphilis and 24 healthy volunteers. CSF examination (i.e. routine laboratory tests and IL-10 levels) was performed in all syphilis patients. Neurosyphilis was defined as reactive CSF VDRL test or CSF white blood cells⩾5/µL and CSF protein concentration⩾45mg/dL. Overall, 31% of patients with syphilis had neurosyphilis. CSF IL-10 levels were significantly higher in patients with neurosyphilis when compared to those with syphilis but not neurosyphilis. -1082 GG and -592 CC genotypes were significantly associated with higher CSF IL-10 levels. Moreover, these genotypes were found to be more frequent in individuals with neurosyphilis in comparison to those without neurosyphilis. Anti-inflammatory immune response seems to be important in pathogenesis of neurosyphilis. Our data suggest that host-related factors, such as SNPs of immune regulatory genes may influence the susceptibility to neurosyphilis.

[Comparison of basic knowledge of symptomatology and risk factors of transmission of sexually transmitted diseases among young males]. / Porównanie podstawowej wiedzy o symptomatologii i czynnikach ryzyka przenoszenia chorób wenerycznych u mlodych mezczyzn.

The so-called sexually transmitted diseases (STD) are the ones in which the transmission of pathogenic factors is mostly caused by sexual intercourse. Every year 333 million of documented new cases of STD occur all over the world. Due to an increase of incidence of STD, which was observed in the Province of Malopolska, the authors decided to check the knowledge of basic clinical symptoms and risk factors of transmission of venereal diseases. A group of 104 soldiers (quartered in military bases in Cracow) and a group of 41 medical students (the 1st and the 2nd year of medical studies at the CMUJ in Cracow) were included in the analysis. The investigated population was exclusively consisting of men, aged 19-25. The authors used their own questionnaire consisting of 25 multiple-choice questions. The result of the research revealed a very poor knowledge of basic clinical symptoms and risk factors of STD in both analysed groups. It implies the necessity of conducting educational activities on prophylaxis, risk factors and symptomatology of venereal diseases.

[Interdisciplinary approach to onychophagia]. / Onychofagia jako problem interdyscyplinarny.

Onychophagy is classified to the nail diseases caused by repeated injures. Nail-biting as autodestruction and onychophagy in its most aggressive form, is common not only among children but adults as well. Nail-biting in children belongs to the group of habits and habitual function, which allowed for relieving the anxiety, loneliness, inactivity in children deprived of safety feeling, love and nearest relationship. In most adults suffering from onychophagy psychiatric diseases are not diagnosed. There are different clinical symptoms of onychophagy depended on the degree and the way of performed injures. In this study we are promoting the multidisciplinary approach to the therapy of habitual nail-biting.