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BACKGROUND: Acne scar is an inflammatory condition, which commonly occurs in patients with acne vulgaris, especially in adults. Mesogels have been reported effective in improving atrophic acne scars. AIMS: We investigated the efficacy of adding Profhilo (a hyaluronic acid-based filler) to subcision as a new treatment method. METHODS: Twelve patients aged 18-45 years with atrophic acne scars on both sides of the face participated in this single-blinded, split-face, randomized controlled trial. Each side of the face was randomly assigned to one of the treatment methods, including subcision alone and subcision + Profhilo. Patients in the Profhilo arm received mesogel (1 cc) in addition to the subcision procedure. Both methods were carried out two times at 1-month intervals. Assessments were done based on the sonographic depth of scars, and two blinded observers examined photographs at baseline and 3 months after the final session and the results were reported based on an exclusively made formula as the total score. The Global Improvement Scale and Visual Analogue Scale (VAS) (for patient satisfaction) were also used. RESULTS: The VAS score of patient satisfaction was statistically significant in the Profhilo arm, with a mean improvement of 528.08 and 219.06 in the subcision arm (p = 0.02). No significant difference was seen in total acne scar reduction comparing the two methods (29.74 in the Profhilo arm and 22.27 in the subcision arm, p = 0.56). Sonographic depth reduction was also non-significant, with a mean of 29.21 in the Profhilo arm and 28.53 in the subcision arm (p = 0.4). The mean global improvement was reported as four in both arms, and no statistical significance was observed (p = 0.89). The best response to treatment belonged to the rolling subtype in both methods (p = 0.029 for the Profhilo arm and p = 0.001 for the subcision arm). CONCLUSION: Despite no significant difference between the methods, Profhilo is more effective due to a higher satisfaction rate and better physiologic effects.
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Acné Vulgar , Cicatriz , Rellenos Dérmicos , Ácido Hialurónico , Satisfacción del Paciente , Humanos , Acné Vulgar/complicaciones , Método Simple Ciego , Adulto , Cicatriz/etiología , Cicatriz/terapia , Femenino , Ácido Hialurónico/administración & dosificación , Adulto Joven , Masculino , Resultado del Tratamiento , Rellenos Dérmicos/administración & dosificación , Rellenos Dérmicos/efectos adversos , Adolescente , Persona de Mediana Edad , Terapia Combinada/métodos , Cara , Técnicas Cosméticas/efectos adversos , Técnicas Cosméticas/instrumentaciónRESUMEN
BACKGROUND AND OBJECTIVE: Sunlight exposure, the main source of endogenous vitamin D synthesis, may increase the risk of non-melanoma skin cancers (NMSC) development. Vitamin D receptor (VDR) polymorphisms are associated with various malignancies. This study aimed to examine the associations between vitamin D status and VDR FokI polymorphisms in Iranian subjects with NMSC. MATERIALS AND METHODS: This case-control study included 73 diagnosed cases of NMSC and 72 healthy controls from dermatology clinics at Razi Hospital, Tehran, Iran. A questionnaire was used to assess sunlight exposure. The extracted DNA from whole blood samples was genotyped and serum concentrations of 25-hydroxycalciferol (25(OH)D)) and intact parathyroid hormone (iPTH) were measured. RESULTS: We found a significant higher duration of cumulative sunlight exposure in cases compared with controls (p<0.001). However, 25(OH)D and iPTH concentrations were not significantly different between cases and controls (30±15 vs. 29±15 ng/mL, p=0.78 and 46.0±20 vs. 40.5±23 pg/mL, p=0.14, respectively). We did not observe any significant increased risk of NMSC due to f allele, as compared with FF (OR =2.33, 95% CI 0.81-6.75, p=0.12). CONCLUSION: Though sunlight exposure was associated with increased NMSC risk, there were no significant associations between vitamin D status or VDR FokI polymorphisms with NMSC development in our subjects.
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Receptores de Calcitriol , Neoplasias Cutáneas , Vitamina D , Estudios de Casos y Controles , Humanos , Irán/epidemiología , Receptores de Calcitriol/genética , Neoplasias Cutáneas/etiología , Neoplasias Cutáneas/genética , Neoplasias Cutáneas/metabolismo , Luz Solar/efectos adversos , Vitamina D/metabolismo , VitaminasRESUMEN
BACKGROUND: Psoriasis is a common chronic dermatosis that can negatively affect patients' lives. AIM: To obtain more insight about how having psoriasis and how the various clinical and physical characteristics of the disease impact the health-related quality of life (HRQoL) of pediatric patients. METHODS: A retrospective cross-sectional study was designed with 40 pediatric patients with psoriasis. HRQoL was evaluated using the Children Dermatology Life Quality Index (CDLQI). RESULTS: A total of 40 patients enrolled in this study. The mean age of participants was 12.42 ± 7.1 years (age range: 4-16 years), 21 males (52.5%), and 19 females (47.5%). The mean Psoriasis Area Severity Index (PASI) score was 8.03 ± 9.31 with a range of 0.4-25. Mean CDLQI score was 18.87 ± 8.15, indicating a considerable burden on health-related QoL. There was a strong positive correlation between CDLQI and PASI scores (p < .001, r: .653). CONCLUSION: The negative effect of psoriasis on HRQoL in pediatrics was confirmed, and a strong correlation between disease severity scores and HRQoL in children with psoriasis was found in this study. Taking HRQoL indices into account while managing adolescent patients will improve our insight into the patient's experience and may provide better patient adherence to treatment.
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Pediatría , Psoriasis , Adolescente , Niño , Preescolar , Estudios Transversales , Femenino , Humanos , Irán , Masculino , Psoriasis/tratamiento farmacológico , Calidad de Vida , Estudios Retrospectivos , Índice de Severidad de la EnfermedadRESUMEN
Rituximab is widely used as the first-line treatment for pemphigus patients. Since it depletes the B cells, it increases the risk of infections. Here, we evaluated the prophylactic efficacy of cotrimoxazole in decreasing the risk of pneumocystis pneumonia (PCP) infection in the pemphigus patients treated with rituximab. The medical records of confirmed pemphigus patients receiving rituximab were evaluated in two groups; those who received cotrimoxazole as a prophylactic after rituximab and patients who only received rituximab without any prophylaxis. The occurrence of PCP infection was determined in each group and compared. Medical records of 494 patients, including 301 women and 193 men, with the mean age of 46.74 years were analyzed. The phenotypes of the disease were mucocutaneous (n = 364), mucosal (n = 88), and cutaneous (n = 42). Among them, 235 cases had received cotrimoxazole as a prophylaxis and 259 patients did not. The incidence of PCP in total patients was 2 (0.4%), one in each group. Accordingly, no significant difference was observed in the incidence of PCP between two groups (p = 0.84). Also, no cotrimoxazole-related side effect was observed in the treated group. It seems that due to the low incidence of PCP in pemphigus patients treated with rituximab, prophylactic cotrimoxazole therapy is not necessary and it only increases the overall therapy cost and might cause cotrimoxazole-related adverse effects in some patients. However, regarding its probable beneficial effect in patients with long-term history of immunosuppressive therapy, more studies are required.
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Pénfigo , Neumonía por Pneumocystis , Femenino , Humanos , Pénfigo/diagnóstico , Pénfigo/tratamiento farmacológico , Pénfigo/prevención & control , Neumonía por Pneumocystis/tratamiento farmacológico , Neumonía por Pneumocystis/etiología , Neumonía por Pneumocystis/prevención & control , Estudios Retrospectivos , Rituximab , Combinación Trimetoprim y Sulfametoxazol/efectos adversosRESUMEN
Introduction: Laser-assisted hair removal is widely used by a large number of patients complaining of unwanted hair. However, little is known about the effect of varying the pulse duration on clinical results and side effects. This study aimed to investigate the effectiveness of hair removal using an alexandrite laser with different pulse durations. Methods: Fifty female patients with facial hirsutism were subjected to a hair removal procedure with an alexandrite laser, using 3 and 10 milliseconds pulse durations on each side of the face every 5 weeks for three sessions. Photographs were taken and hair counts were checked before the treatment and one month postoperatively. Results: one month after the laser treatment, the clearance rate was 56% with both 3 and 10 milliseconds pulse durations. There was not any significant difference in clinical efficacy or the side effect profile. Conclusion: Using a 755 nm alexandrite laser for hair removal is an effective and safe method for delaying hair regrowth and this delay is not markedly different by increasing the pulse duration from 3 to 10 milliseconds.
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Scleromyxedema is an uncommon disease, affecting the skin mainly and other internal organs sometimes, characterized by fibroblasts proliferation, fibrosis, and mucous deposition in the absence of thyroid disorder. It is associated with monoclonal gammopathy in most cases. We are reporting a case with a rare presentation of tumoral scleromyxedema in the neck, with a mass mimicking other tumoral lesions, highlighting the importance of diagnosis and histopathologic correlation.
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BACKGROUND: Bullous pemphigoid (BP) is an autoimmune subepidermal blistering disease associated with immune response against BP-180 and BP-230. Peripheral blood eosinophilia and dermal infiltration of eosinophils are common findings in BP. OBJECTIVE: The aim of our study was to demonstrate a statistical correlation between dermal and peripheral blood eosinophilia, anti BP-180, and anti BP-230 IgG and clinical severity of BP. METHODS: A total of 27 patients with newly diagnosed BP were included. Severity of disease was assessed according to the bullous pemphigoid disease activity index (BPDAI). Anti-BP-180 and anti-BP-230 titers, peripheral blood eosinophilia, and dermal eosinophil infiltration and tissue inflammation severity were assessed for each patient. RESULTS: A significant correlation was found between the serum levels of anti-BP-180 and anti-BP-230, and dermal eosinophilia and tissue inflammation severity with objective and subjective BPDAI scores. In addition, there was a significant correlation between the percentage of peripheral blood eosinophils and subjective BPDAI scores and urticarial/eczematous lesions. Moreover, the mucosal component did not show any correlation with autoantibody levels and inflammation severities. CONCLUSION: Anti-BP-180 and anti-BP-230 levels, tissue inflammation severity, and dermal eosinophilia had a strong and significant correlation with BP severity. In addition, percentage of peripheral blood eosinophilia showed a correlation with subjective BPDAI scores.
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Rapid diagnosis of pemphigus vulgaris (PV) is an important task in patient's prognosis and treatment. Although PV is routinely diagnosed through investigation of pathology specimens and direct immunofluorescence assays, Tzanck smear can be used as rapid, inexpensive, and easily used test to confirm its clinical diagnosis. This study aimed to determine the diagnostic value of Tzanck smear in erosive oral lesions of PV and also determine its sensitivity and specificity for diagnostic purposes. A total of 68 patients with erosive/ulcerated oral lesions were included in this study and divided into PV (case group) vs other causes of erosive oral lesions (control group). From all participants, two Tzanck smears were prepared for both Giemsa and hematoxylin-eosin (H&E) staining. For definite diagnosis, histopathology and direct immunofluorescence evaluations were performed based on clinical findings. The sensitivity of acantholytic cells in Tzanck smear of erosive oral lesions of PV cases was 80.5% (for both Giemsa and H&E staining), whereas specificity values of Giemsa and H&E staining were 84.6% and 96.3%, respectively. Based on our findings, the Tzanck smear of erosive oral lesions is a simple, quick, and inexpensive test for screening and primary diagnosis of PV.
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Úlceras Bucales , Pénfigo , Citodiagnóstico , Técnica del Anticuerpo Fluorescente Directa , Humanos , Úlceras Bucales/diagnóstico , Pénfigo/diagnóstico , Sensibilidad y EspecificidadRESUMEN
BACKGROUND: Efinaconazole is non-lacquer-based with a low surface tension that efficiently targets delivery of active ingredient into the nail and nail bed. OBJECTIVES: To develop an optimal, stable formulation of efinaconazole topical solution 10% (ETS10). METHODS: We evaluated the safety and efficacy of ETS10 on 10 Iranian participants in a pilot, single-group and before-after clinical study, for up to 8 weeks in onychomycosis. RESULTS: The study showed reasonable results concerning the short period of treatment. During the period of storage, the formulation showed no variation in colour, odour and pH. The average pH at initial, 1st, 6th and 12th months was 4.65, 4.64, 4.65 and 4.64, respectively. The assay of an active pharmaceutical ingredient in the formulation was desired over the whole period. This indicates that antimicrobial activity has been adequate and efficient. A significant decrease in Investigator Global Assessment (IGA) of the target toenails was also defined as the efficacy endpoint. The median score for IGA at baseline visit was 3 out of 5 which decreased to 2 out of 5 and the decrease was statistically significant. CONCLUSION: The study clarifies the new efficacy of ETS10 in subjects with onychomycosis and passed the safety study successfully. These properties may develop the potentiality of ETS10 as a good treatment option for patients with onychomycosis.
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Antifúngicos/uso terapéutico , Enfermedades de la Uña/tratamiento farmacológico , Uñas/microbiología , Onicomicosis/tratamiento farmacológico , Triazoles/uso terapéutico , Administración Tópica , Adolescente , Adulto , Anciano , Antifúngicos/administración & dosificación , Femenino , Pie , Humanos , Masculino , Persona de Mediana Edad , Enfermedades de la Uña/microbiología , Onicomicosis/microbiología , Proyectos Piloto , Triazoles/administración & dosificación , Adulto JovenRESUMEN
BACKGROUND: Nonmelanoma skin cancers are the most frequently occurring skin cancers. Vitamin A is involved in epithelial cell differentiation and may control skin tumor development. Vitamin E is a powerful lipophilic antioxidant that can quench and scavenge reactive oxygen species. However, there is little consistent evidence considering micronutrients and the development of basal cell carcinoma (BCC). Therefore, we aimed to investigate the possible difference between retinol and α-tocopherol in BCC patients and controls in Iranian population. METHODS: This case-control study was conducted on adults with newly diagnosed BCC referred to Razi Hospital, Tehran, Iran in 2015. Serum and subcutaneous fat tissue retinol and α-tochopherol were measured by HPLC method. RESULTS: Overall, serum retinol level was lower significantly in BCC patients (0.237±0.01 µg/ml) in comparison with control group (0.27±0.02 µg/ml, P-value: 0.038). However serum α-tocopherol level was not significantly different between BCC patients (4.41±0.33 µg/ml) and control subjects (4.06±0.35 µg/ml, P-value=0.18). Sub-cutaneous adipose tissue retinol was lower significantly in BCC patients (38.60±3.30 ng/mg) compared with control group (54.78±3.49 ng/mg, P-value=0.002). Furthermore, results revealed lower subcutaneous adipose tissue α-tocopherol in BCC patients (4.41±0.33 µg/ml) in comparison with control group (4.06±0.35 µg/ml, P-value=0.18). CONCLUSION: Skin tissue concentration of retinol and α-tocopherol and serum retinol level was lower in BCC patients in comparison with control group but serum α-tocopherol was not different between groups.
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Nowadays lip augmentation with FDA-approved fillers is becoming popular. However, because of financial concerns many patients seek for unregistered materials. Here, we report two cases who use vitamin E for lip augmentation. They experience severe infiltration and discharge less than one month after injection. Biopsy revealed lipogranuloma formation. They were treated with incision and drainage, antibiotic, and corticosteroids. Although these complications are usually difficult to treat, the patients had good clinical response and no recurrence in 5-month follow-up.
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Técnicas Cosméticas/efectos adversos , Rellenos Dérmicos/efectos adversos , Fiebre/terapia , Reacción en el Punto de Inyección/terapia , Vitamina E/efectos adversos , Corticoesteroides/administración & dosificación , Adulto , Antibacterianos/administración & dosificación , Biopsia , Rellenos Dérmicos/administración & dosificación , Drenaje , Femenino , Fiebre/sangre , Fiebre/diagnóstico , Fiebre/etiología , Humanos , Reacción en el Punto de Inyección/sangre , Reacción en el Punto de Inyección/diagnóstico , Reacción en el Punto de Inyección/etiología , Inyecciones/efectos adversos , Recuento de Leucocitos , Labio/patología , Labio/cirugía , Rejuvenecimiento , Índice de Severidad de la Enfermedad , Resultado del Tratamiento , Vitamina E/administración & dosificaciónRESUMEN
BACKGROUND: The pomegranate peel extract is a rich source of natural antioxidant and antimicrobial activity. The aim of the present investigation was to evaluate the in vivo antifungal activity of the pomegranate peel extract and to compare it with nystatin against oral candidiasis in Wistar rats. METHODS: Thirty-five male Wistar rats, 6 to 8 weeks old and 220 to 250 g in weight, were used for animal studies. The rats were randomly divided into 7 groups. All the rats, except the control group, were immunosuppressed with cyclosporine (40 mg/kg/d) and hydrocortisone acetate (500 µg/kg/d). Then oral candidiasis was induced via the oral administration of a suspension of Candida albicans (ATCC 10231) (2×107 cell/mL) in PBS on the palate and tongue of the animals on days 3 and 5. Treatment was initiated by using 3 different concentrations of the pomegranate peel extract (125, 250, and 500 µg/mL/kg) and nystatin 100000 U/mL/kg by gavage daily. The statistical analysis was performed using the SPSS, version 22.0. In this study, generalized estimating equations were used for data analysis to determine the effects of the pomegranate peel extract and nystatin on oral candidiasis. RESULTS: Regardless of the concentration of the pomegranate peel extract used for the treatment of oral candidiasis, a significant improvement was seen after 15 days of treatment. All the doses of the pomegranate peel were effective against candidiasis after 15 days; the pomegranate peel extract had no adverse effects following administration in the rats. CONCLUSION: Our results indicated that the pomegranate peel extract is a promising approach to oral candidiasis treatment, and it may serve as a natural alternative prospect due to its potency against oral candidiasis.
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Studies have reported different changes in the fatty acid composition of red blood cell (RBC) total lipids in patients with various types of cancer. It has been indicated that n-3/n-6 ratio plays a key role in the general consequence of skin photocarcinogenesis. However, to our knowledge there was no study examining the unsaturated fatty acid profile in basal cell carcinoma (BCC) patients. So, we explore the fatty acid composition of RBCs in newly diagnosed BCC patients in a hospital-based case-control study. This study has been conducted on new case BCC patients in Razi Hospital, Tehran, Iran. Fatty acid concentration in erythrocyte membranes defined as relative values after extraction, purification and preparation, by gas chromatography.Analysis revealed that heptadecenoic acid (p = 0.010) and oleic acid (p < 0.001) was significantly higher in BCC patients in comparison with control group. Among polyunsaturated fatty acids (PUFAs), linoleic acid (LA), and arachidonic acid (AA) were significantly higher in BCC patients (p < 0.001). It has been indicated that n-3 was significantly lower (p = 0.040) and n-6 was significantly higher (p = 0.002) in BCC patients. In addition, total PUFA (p < 0.001) and n-6 PUFAs/n-3 PUFAs (p = 0.002) were significantly higher in BCC patients compared to the control group. Here we indicated that new case BCC patient had significantly higher n-6 PUFA and lower n-3 along with other differences in unsaturated fatty acid in comparison with healthy subjects. Our study provides evidence that lipids are important in BCC development.
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BACKGROUND: Mycosis fungoides (MF) has a wide range of clinical presentations and it has been reported rarely to involve the nail apparatus. OBJECTIVE: We intended to evaluate the frequency and characteristics of nail changes in patients with biopsy-proven MF. METHODS: A retrospective analysis of 60 patients with MF who were evaluated at our cancer center from 2013 to 2014 was performed to identify patients with nail changes. Histological examinations of the skin around the nail apparatus were obtained from 10 patients with periungual skin erythema and scaling. RESULTS: In 45 patients out of 60 cases, the skin around the nail apparatus was normal, and only in 5 patients of these 45 cases, nail changes were detected. These changes included leukonychia, longitudinal ridging, nail thickening, and opacity. In the remaining 15 patients, erythema and scaling was observed in periungual skin, and 13 of them demonstrated nail changes including longitudinal ridging, nail thickening, fragility of the nail plate, subungual hyperkeratosis, pigmented nail band, Beau's lines, onychomadesis, koilonychia, nail thinning, distal notching, subungual debris, leukonychia, and pitting. In biopsies of periungual skin, none of 10 cases revealed histological findings consistent with MF. CONCLUSIONS: Evidence of nail changes was observed in 18 cases (30%). The most common nail changes detected in MF patients included longitudinal ridging, nail thickening, nail fragility, and leukonychia.
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BACKGROUND: Skin cancers are the most prevalent malignancy worldwide and Basal Cell Carcinoma (BCC) include the major type of nonmelanoma skin cancers. Fatty acids (FA) have a structural role in cell membranes and play an important role for many physiological and pathological immunologic pathways. Several prospective studies have been conducted on circulating fatty acids and the risk of prostate, breast and other cancers. The present study aimed to determine the saturated fatty acid composition differences of red blood cells (RBCs) in BCC patients and healthy control. METHODS: A hospital-based case-control study was conducted on new cases diagnosed of BCC patients. All subjects completed dietary recalls for dietary assessment. After fatty acids extraction, purification and preparation, gas chromatography was performed. The results were expressed in relative values (percent). RESULTS: Cases had lower RBC levels of Caproic acid (6:0) (P < 0.001), Caprylic acid (8:0) (P = 0.01), Capric acid (10:0) (P = 0.01), Palmitic acid (16:0) (P = 0.02) and higher RBC level of Pentadecanoic acid (15:0) (P = 0.04) and Stearic acid (18:0) (P = 0.01) compared with controls but did not differ in the level of the other primary saturated fatty acids. Saturation Index as defined by Stearic to Oleic acid ratio was significantly lower in BCC patients in comparison with Control group (P = 0.02). CONCLUSION: Here we showed that BCC patient had considerable differences in the SFA profiles in comparison with healthy subjects.
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Carcinoma Basocelular/sangre , Membrana Eritrocítica/química , Ácidos Grasos/análisis , Carcinoma Basocelular/diagnóstico , Estudios de Casos y Controles , Dieta , Femenino , Humanos , Masculino , Persona de Mediana Edad , Ácido Palmítico/análisis , Tamaño de la Muestra , Ácidos Esteáricos/análisisRESUMEN
BACKGROUND: The exposure of skin to ultraviolet radiation and temperature differs significantly during the day. It is reasonable that biophysical parameters of human skin have periodic daily fluctuation. The objective of this study was to study the fluctuations of various biophysical characteristics of Middle Eastern skin in standardized experimental conditions. MATERIALS AND METHODS: Seven biophysical parameters of skin including stratum corneum hydration, transepidermal water loss, pH, sebum, elasticity, skin color, and erythema index were measured at three time points (8 a.m., 12 p.m. and 4 p.m.) on the forearm of 12 healthy participants (mean age of 28.4 years) without any ongoing skin disease using the CK MPA 580 device in standard temperature and humidity conditions. RESULTS: A significant difference was observed between means of skin color index at 8 a.m. (175.42 ± 13.92) and 4 p.m. (164.44 ± 13.72, P = 0.025), between the pH at 8 a.m. (5.72 ± 0.48) and 4 p.m. (5.33 ± 0.55, P = 0.001) and pH at 12 p.m. (5.60 ± 0.48) and 4 p.m. (5.33 ± 0.55, P = 0.001). Other comparisons between the means of these parameters at different time points resulted in nonsignificant P values. CONCLUSION: There are daytime changes in skin color index and pH. Skin color index might be higher and cutaneous pH more basic in the early morning compared to later of the day.
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BACKGROUND: Alopecia can be a manifestation of mycosis fungoides (MF); however, the prevalence is unknown. AIMS: We sought to describe the clinicopathologic presentation of alopecia in patients with diagnosis of MF. METHODS: A retrospective analysis of patients with biopsy-proven MF, who were evaluated at our cancer center from 2002 to 2012, was performed to identify patients with alopecia. RESULTS: Five patients with alopecia were identified from reviewing of 157 patients with MF. The male:female ratio was 3:2, and the mean age of patients was 42.8 years. Two of these patients showed patchy hair loss on scalp which was clinically identical to alopecia areata. In remaining three patients, hair loss was seen in areas of MF lesions, and epidermal changes consisted of patch- and plaque-type lesions of MF, tumors, and follicular lesions (follicular MF) were also present. In two of these patients, lymphadenopathy without any visceral involvement was detected. CONCLUSIONS: Alopecia was observed in 5 (3.18%) patients with MF, which makes it a rare finding, which included alopecia areata-like patchy loss in 2 and alopecia within MF lesions in 3.
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BACKGROUND: Environmental and genetic factors may contribute to the pathogenesis of pemphigus vulgaris (PV) as an autoimmune disease. We aimed to determine rates of seropositivity for immunoglobulin G (IgG) antibodies against a number of infectious agents in untreated and treated PV patients and in healthy individuals. METHODS: Eighty-two newly diagnosed untreated PV patients (34 men and 48 women; mean ± standard deviation [SD] age: 44.18 ± 14.43 years) and 36 previously diagnosed patients under immunosuppressive therapy (16 men and 20 women; mean ± SD age: 38.53 ± 9.96 years) were enrolled in the study. The clinical diagnosis of PV was confirmed by histopathology and direct immunofluorescence findings. As a control group, 131 healthy individuals (68 men and 63 women; mean ± SD age: 42.56 ± 19.69 years) were recruited. In all patients and controls, serum IgG antibodies against Strongyloides stercoralis, Helicobacter pylori, Epstein-Barr virus (EBV) capsid antigen, and Leishmania major were measured using enzyme-linked immunosorbent assays. The indirect immunofluorescence test was used to detect IgG antibodies against Toxoplasma gondii. RESULTS: Newly-diagnosed untreated PV patients had significantly higher rates of seropositivity of IgG antibodies against S. stercoralis and H. pylori compared with the control group (69.5% vs. 16.0% [P < 0.001] and 79.3% vs. 59.5% [P = 0.004], respectively). For the other agents, namely T. gondii, L. major, and EBV capsid antigen, the differences between groups in seropositivity for IgG antibodies were not statistically significant. CONCLUSIONS: Significant associations between S. stercoralis and H. pylori seropositivity rates and untreated disease led to the hypothesis that these pathogenic agents may contribute to the pathogenesis of PV.