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Zhang RY, Li FJ, Zhang Q, Xin LH, Huang JY, Zhao J. Causal associations between modifiable risk factors and isolated REM sleep behavior disorder: a mendelian randomization study. Front Neurol 2024; 15:1321216. [PMID: 38385030 PMCID: PMC10880103 DOI: 10.3389/fneur.2024.1321216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 01/11/2024] [Indexed: 02/23/2024] Open
Abstract
Objectives This Mendelian randomization (MR) study identified modifiable risk factors for isolated rapid eye movement sleep behavior disorder (iRBD). Methods Genome-wide association study (GWAS) datasets for 29 modifiable risk factors for iRBD in discovery and replication stages were used. GWAS data for iRBD cases were obtained from the International RBD Study Group. The inverse variance weighted (IVW) method was primarily employed to explore causality, with supplementary analyses used to verify the robustness of IVW findings. Co-localization analysis further substantiated causal associations identified via MR. Genetic correlations between mental illness and iRBD were identified using trait covariance, linkage disequilibrium score regression, and co-localization analyses. Results Our study revealed causal associations between sun exposure-related factors and iRBD. Utilizing sun protection (odds ratio [OR] = 0.31 [0.14, 0.69], p = 0.004), ease of sunburn (OR = 0.70 [0.57, 0.87], p = 0.001), childhood sunburn occasions (OR = 0.58 [0.39, 0.87], p = 0.008), and phototoxic dermatitis (OR = 0.78 [0.66, 0.92], p = 0.003) decreased iRBD risk. Conversely, a deep skin color increased risk (OR = 1.42 [1.04, 1.93], p = 0.026). Smoking, alcohol consumption, low education levels, and mental illness were not risk factors for iRBD. Anxiety disorders and iRBD were genetically correlated. Conclusion Our study does not corroborate previous findings that identified smoking, alcohol use, low education, and mental illness as risk factors for iRBD. Moreover, we found that excessive sun exposure elevates iRBD risk. These findings offer new insights for screening high-risk populations and devising preventive measures.
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Affiliation(s)
- Ru-Yu Zhang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Fu-Jia Li
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Qian Zhang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Li-Hong Xin
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Jing-Ying Huang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Jie Zhao
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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Roumy V, Ruiz L, Ruiz Macedo JC, Gutierrez-Choquevilca AL, Samaillie J, Encinas LA, Mesia WR, Ricopa Cotrina HE, Rivière C, Sahpaz S, Bordage S, Garçon G, Dubuisson J, Anthérieu S, Seron K, Hennebelle T. Viral hepatitis in the Peruvian Amazon: Ethnomedical context and phytomedical resource. JOURNAL OF ETHNOPHARMACOLOGY 2020; 255:112735. [PMID: 32147478 DOI: 10.1016/j.jep.2020.112735] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/25/2020] [Accepted: 03/01/2020] [Indexed: 05/25/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE An extensive ethnopharmacological survey was carried out in the Peruvian Amazonian district of Loreto with informants of various cultural origins from the surroundings of Iquitos (capital city of Loreto) and from 15 isolated riverine Quechua communities of the Pastaza River. A close attention was paid to the medical context and plant therapy, leading to the selection of 35 plant species (45 extracts). The extracts were tested for antiviral activity against HCV with counting of Huh-7 cellular death in case of toxicity, and cytotoxicity was evaluated in HepG2 cells. AIM OF THE STUDY The aim of the study was to inventory the plants used against hepatitis in Loreto, then to evaluate their antiviral activity and to suggest a way to improve local therapeutic strategy against viral hepatitis, which is a fatal disease that is still increasing in this area. MATERIALS AND METHODS An ethnographic survey was carried out using "participant-observation" methodology and focusing on plant therapy against hepatitis including associated remedies. 45 parts of plant were extracted with methanol and tested in vitro for anti-HCV activity in 96-well plate, using HCV cell culture system with immunofluorescent detection assisted by automated confocal microscopy. Toxicity of plant extracts was also evaluated in microplates on hepatic cells by immunofluorescent detection, for the Huh-7 nuclei viability, and by UV-absorbance measurement of MTT formazan for cytotoxicity in HepG2 cells. RESULTS In vitro assay revealed interesting activity of 18 extracts (50% infection inhibition at 25 μg/mL) with low cytotoxicity for 15 of them. Result analysis showed that at least 30% of HCV virus were inhibited at 25 μg/mL for 60% of the plant extracts. Moreover, the ethnomedical survey showed that remedies used with low and accurate dosing as targeted therapy against hepatitis are usually more active than species indicated with more flexible dosing to alleviate symptoms of hepatic diseases. CONCLUSION Together with bibliographic data analysis, this study supported the traditional medicinal uses of many plants and contributed to a better understanding of the local medical system. It also permitted to refine the therapeutic plant indications regarding patients' liver injuries and vulnerability. Only 2 of the 15 most active plant species have already been studied for antiviral activity against hepatitis suggesting new avenues to be followed for the 13 other species.
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Affiliation(s)
- Vincent Roumy
- Univ. Lille, INRA, YNCREA, Univ. Artois, Univ. Littoral Côte d'Opale, EA 7394-ICV-Institut Charles Viollette, F-59000, Lille, France.
| | - Lastenia Ruiz
- Laboratorio de Investigación de Productos Naturales Antiparasitarios de la Amazonia (LIPNAA), Universidad Nacional de la Amazonía Peruana (UNAP), Centro de Investigaciones de Recursos Naturales de la Amazonía (CIRNA), Nuevo San Lorenzo, Iquitos, Perú
| | - Juan Celidonio Ruiz Macedo
- Herbarium de la Amazonía Peruana Amazonense de la Universidad Nacional de la Amazonía Peruana (UNAP), Nanay con Pevas, Iquitos, Perú
| | - Andrea-Luz Gutierrez-Choquevilca
- Ecole Pratique des Hautes Etudes, EPHE PSL, Laboratoire d'anthropologie sociale (UMR 7130, Collège de France, 75005, Paris France)
| | - Jennifer Samaillie
- Univ. Lille, INRA, YNCREA, Univ. Artois, Univ. Littoral Côte d'Opale, EA 7394-ICV-Institut Charles Viollette, F-59000, Lille, France
| | - Leonor Arévalo Encinas
- Laboratorio de Investigación de Productos Naturales Antiparasitarios de la Amazonia (LIPNAA), Universidad Nacional de la Amazonía Peruana (UNAP), Centro de Investigaciones de Recursos Naturales de la Amazonía (CIRNA), Nuevo San Lorenzo, Iquitos, Perú
| | - Wilfredo Ruiz Mesia
- Laboratorio de Investigación de Productos Naturales Antiparasitarios de la Amazonia (LIPNAA), Universidad Nacional de la Amazonía Peruana (UNAP), Centro de Investigaciones de Recursos Naturales de la Amazonía (CIRNA), Nuevo San Lorenzo, Iquitos, Perú
| | - Hivelli Ericka Ricopa Cotrina
- Laboratorio de Investigación de Productos Naturales Antiparasitarios de la Amazonia (LIPNAA), Universidad Nacional de la Amazonía Peruana (UNAP), Centro de Investigaciones de Recursos Naturales de la Amazonía (CIRNA), Nuevo San Lorenzo, Iquitos, Perú
| | - Céline Rivière
- Univ. Lille, INRA, YNCREA, Univ. Artois, Univ. Littoral Côte d'Opale, EA 7394-ICV-Institut Charles Viollette, F-59000, Lille, France
| | - Sevser Sahpaz
- Univ. Lille, INRA, YNCREA, Univ. Artois, Univ. Littoral Côte d'Opale, EA 7394-ICV-Institut Charles Viollette, F-59000, Lille, France
| | - Simon Bordage
- Univ. Lille, INRA, YNCREA, Univ. Artois, Univ. Littoral Côte d'Opale, EA 7394-ICV-Institut Charles Viollette, F-59000, Lille, France
| | - Guillaume Garçon
- Univ. Lille, CHU Lille, Institut Pasteur de Lille, EA 4483-IMPECS-IMPact de l'Environnement Chimique sur la Santé humaine, F-59000, Lille France
| | - Jean Dubuisson
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 8204 - CIIL, Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Sebastien Anthérieu
- Univ. Lille, CHU Lille, Institut Pasteur de Lille, EA 4483-IMPECS-IMPact de l'Environnement Chimique sur la Santé humaine, F-59000, Lille France
| | - Karin Seron
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 8204 - CIIL, Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Thierry Hennebelle
- Univ. Lille, INRA, YNCREA, Univ. Artois, Univ. Littoral Côte d'Opale, EA 7394-ICV-Institut Charles Viollette, F-59000, Lille, France
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Borda LJ, Louis SJ, Fethiere M, Dure D, Morrison BW. Prevalence of Skin Disease in Urban Haiti: A Cross-Sectional Study. Dermatology 2019; 235:495-500. [PMID: 31586992 DOI: 10.1159/000503061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 09/01/2019] [Indexed: 11/19/2022] Open
Abstract
The prevalence of skin disease varies with geographic location and may be affected by cultural factors. In Haiti, the combination of poor health care access, infrastructure lack, and natural disasters may affect the prevalence of skin conditions. Unfortunately, little epidemiological information has been obtained on the prevalence of skin diseases in Haiti. The objective of this study is to describe data on the prevalence of dermatological conditions in urban areas of Haiti. Univariate, bivariate, and χ2 analyses were used to evaluate associations. During February 2016, we documented 137 patients. The mean age was 27.7 years; most of the subjects were women (61.3%) in a cohort mostly adult (67.1%). The infectious and inflammatory dermatoses were the most prevalent (74.2%). Infectious skin diseases were more prevalent in men and in adults in general (p < 0.01). Inflammatory conditions were also more common in adults (p < 0.05). Additionally, alopecia and dyschromia were limited to women (p < 0.01). Infectious skin diseases, in particular fungal infections, were amongst the most common diagnoses in the urban area of Haiti. Therefore, improved access to antimicrobial and anti-inflammatory medications would likely benefit Haitian patients with dermatological conditions. These findings may help local public health officials and future dermatological expeditions better serve this population.
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Affiliation(s)
- Luis J Borda
- Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Shesly J Louis
- Department of Dermatology and Sexually Transmitted Diseases, Hospital of the State University of Haiti, Port-au-Prince, Haiti
| | | | - Danie Dure
- General Dermatology and Pediatric Dermatology, Hôpital Universitaire de Mirebalais, Mirebalais, Haiti
| | - Brian W Morrison
- Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA,
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Albasri AM, Ansari IA. The histopathological pattern of benign and non-neoplastic skin diseases at King Fahad Hospital, Madinah, Saudi Arabia. Saudi Med J 2019; 40:548-554. [PMID: 31219488 PMCID: PMC6778761 DOI: 10.15537/smj.2019.6.24205] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 04/29/2019] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES To characterize and compare the histopathological pattern of benign skin diseases in patients from Madinah region of Saudi Arabia. METHODS This retrospective study was conducted at the Department of Pathology, King Fahad Hospital, Madinah, Saudi Arabia, and contained cases of benign skin diseases for 11 years (from January 2006 to December 2017). The findings were tabulated in Microsoft Excel sheet and classified based on histopathological diagnosis. RESULTS Of 1,125 skin tissues reviewed, 579 (51.5%) specimens were from male patients and 546 (48.5%) specimens were from females giving a male: female ratio of 1.1:1. The ages ranged from 1 to 101 years with a mean age of 36.9±9.8 years. Most of the skin diseases (n=639; 57%) were seen in the age group 20-49 years. The most common skin diseases observed were disorders of skin appendages (29.6%) followed by benign tumors (18.3%), disorders of pigmentations (11.9%), papulosquamous lesions (11.4%), and dermatitis/eczema (10%). In the group of skin appendages disorders, epidermal inclusion cyst was the most common disease entity representing 20.4% of cases, followed by trichilemmal cyst accounting for 9.2% of the total cases. Mean ages of the patients were 35±8.5 years and 36.7±9.7 years respectively. CONCLUSION A variety of benign skin lesions were seen in the present study in a wide age distribution range. The most common skin diseases observed in this study were skin appendage disorders, benign skin and adnexal tumors, pigmentation disorders, and papulosquamous lesions.
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Affiliation(s)
- Abdulkader M Albasri
- Department of Pathology, Faculty of Medicine, Taibah University, Al-Madinah Al-Munawwarah, Kingdom of Saudi Arabia. E-mail.
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Health and Demographic Characteristics of Patients Attending a Newly-Opened Medical Facility in a Remote Amazonian Community: A Descriptive Study. Med Sci (Basel) 2018; 6:medsci6040106. [PMID: 30486307 PMCID: PMC6318754 DOI: 10.3390/medsci6040106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/02/2018] [Accepted: 11/20/2018] [Indexed: 11/23/2022] Open
Abstract
Peru is a country with wide regional disparities in health. Remote Amazonian communities have high rates of poverty and poor access to health services. There is a lack of data on morbidity and use of health services in the region. We describe a descriptive, cross-sectional study of the demographic characteristics and presenting complaints of attendees to a newly-opened primary care facility in a remote community. This was supplemented by structured interviews of adult attendees to build a picture of sociocultural determinants of health locally, including engagement with traditional forms of medicine. Our study provides novel insights into an under-studied and under-resourced area. We found a young population with a high prevalence of infectious illnesses, particularly dermatological infections - a previously under-recognised source of morbidity in these communities. Poor literacy rates and widespread use of traditional forms of medicine have important implications for the provision of healthcare in this region.
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Gutierrez EL, Ramos W, Seminario-Vidal L, Tello M, Ronceros G, Ortega-Loayza AG. Oxidative stress in patients with endemic pemphigus foliaceus and healthy subjects with anti-desmoglein 1 antibodies. An Bras Dermatol 2018; 93:212-215. [PMID: 29723379 PMCID: PMC5916392 DOI: 10.1590/abd1806-4841.20186211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 08/18/2017] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Previous studies have shown oxidative stress in pemphigus vulgaris and pemphigus foliaceus, nevertheless, it remains unknown whether a similar response is characteristic of endemic pemphigus foliaceus in Peru. OBJECTIVES To determine the oxidative stress response in endemic pemphigus foliaceus patients and subjects with positive for anti-desmoglein1 antibodies (anti-dsg1) from endemic areas of Peru. SUBJECTS AND METHODS This is a cross-sectional study. The study population included 21 patients with Endemic Pemphigus foliaceus and 12 healthy subjects with anti-dsg1 antibodies from the Peruvian Amazon (Ucayali), as well as 30 healthy control subjects. Malondialdehyde, an indicator of lipid peroxidation by free radicals, was measured in serum. RESULTS We collected 21 cases of endemic pemphigus foliaceus, 15 of them with active chronic disease and 6 in clinical remission. Serum malondialdehyde values in patients with chronic active evolution and healthy subjects with anti-dsg1 antibodies were statistically higher than those of healthy controls (p<0.001). There was no significant difference between serum values of localized and generalized clinical forms. STUDY LIMITATIONS The main limitation of this present study is the small number of patients with endemic pemphigus and healthy subjects positive for desmoglein 1 antibodies. CONCLUSIONS The increased serum levels of malondialdehyde in patients with chronic active endemic pemphigus foliaceus and healthy subjects from endemic areas with anti-dsg1 antibodies may suggest a contribution of systemic lipid peroxidation in the pathogenesis of endemic pemphigus foliaceus.
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Affiliation(s)
- Ericson Leonardo Gutierrez
- Centro Nacional de Salud Pública, Instituto Nacional de
Salud - Lima, Peru
- Departamento de Medicina, Facultad de Medicina, Universidad de San
Martin de Porres (USMP) - Lima, Peru
| | - Willy Ramos
- Instituto de Investigaciones Clínicas, Universidad Nacional
Mayor de San Marcos (UNMSM) - Lima, Peru
- Centro Nacional de Epidemiología, Prevención y
Control de Enfermedades - Lima, Peru
| | - Lucia Seminario-Vidal
- Department of Dermatology and Cutaneous Surgery, University of
South Florida - Tampa (FL), USA
| | - Mercedes Tello
- Unidad de Vigilancia y Control de Vectores. Dirección de
Redes Integradas de Salud Lima Sur - Lima, Peru
| | - Gerardo Ronceros
- Instituto de Investigaciones Clínicas, Universidad Nacional
Mayor de San Marcos (UNMSM) - Lima, Peru
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Ramos W, Díaz J, Gutierrez EL, Lazarte JS, Bohnett MC, Ronceros G, Ortega-Loayza AG. Antidesmoglein 1 and 3 antibodies in healthy subjects of a population in the Peruvian high amazon. Int J Dermatol 2017; 57:344-348. [PMID: 29130480 DOI: 10.1111/ijd.13824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 08/19/2017] [Accepted: 10/03/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND The objective of this study was to determine the presence of anti-Dsg1 and Dsg3 antibodies in healthy subjects of the high Peruvian Amazon (Tuemal, Rodriguez de Mendoza province, department of Amazonas) to establish the theoretical presence of environmental factors or triggers in the area. MATERIALS AND METHODS Cross-sectional study. The study population included persons of any age or gender, clinically healthy, who were evaluated by a dermatologist to confirm the absence of blistering diseases. Blood samples were analyzed by indirect immunofluorescence (IIF), immunoprecipitation (IP), anti-Dsg1 IgM antibody (Ab) enzyme-linked immunosorbent assay (ELISA), as well as anti-Dsg1 and anti-Dsg3 IgG Ab ELISA. RESULTS Participants included 21 healthy subjects comprised of 61.9% males and 38.1% females; 47.6% had a positive anti-Dsg1 Ab ELISA for total IgG (or any subclasses). IIF detected antibodies against intercellular spaces in one subject. Anti-Dsg1 Ab IP was mildly positive in 33.3% of the subjects. Anti-Dsg1 IgG subclasses found positive were: IgG1 (19.0%), IgG2 (33.3%), and IgG3 (28.6%); none of the samples were positive for anti-Dsg1 Ab IgM ELISA, and 23.8% of the subjects were positive for anti-Dsg3 Ab ELISA. The age distribution was similar for subjects positive for anti-Dsg1 and anti-Dsg3 Ab ELISA, with higher frequencies found among the 20-29 and 40-49 year-old age groups. CONCLUSION A fraction of healthy subjects of the high Peruvian Amazon developed anti-Dsg1 and anti-Dsg3 antibodies, demonstrating the possible presence of environmental factors for endemic pemphigus (EP) at a higher altitude than previously described.
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Affiliation(s)
- Willy Ramos
- Instituto de Investigaciones Clínicas, Universidad Nacional Mayor de San Marcos, Lima, Peru.,Centro Nacional de Epidemiología, Prevención y Control de Enfermedades, Ministerio de Salud, Lima, Peru
| | - Jesús Díaz
- Servicio de Dermatología, Hospital Regional Docente Las Mercedes, Chiclayo, Peru
| | - Ericson L Gutierrez
- Facultad de Medicina, Universidad de San Martin de Porres, Lima, Peru.,Centro Nacional de Salud Pública, Instituto Nacional de Salud, Lima, Peru
| | - Jose S Lazarte
- Facultad de Medicina, Universidad de San Martin de Porres, Lima, Peru
| | - Mary C Bohnett
- School of Medicine, Oregon Health & Science University, Portland, OR, USA
| | - Gerardo Ronceros
- Instituto de Investigaciones Clínicas, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Alex G Ortega-Loayza
- Department of Dermatology, Oregon Health & Science University, Portland, OR, USA
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Bilgili ME, Yildiz H, Sarici G. Prevalence of skin diseases in a dermatology outpatient clinic in Turkey. A cross-sectional, retrospective study. J Dermatol Case Rep 2013; 7:108-12. [PMID: 24421863 DOI: 10.3315/jdcr.2013.1156] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2013] [Accepted: 08/19/2013] [Indexed: 11/11/2022]
Abstract
BACKGROUND Dermatologic diseases vary widely as a result of geographic location, climate, socioeconomic status, and personal habits, and internal factors, such as age, gender, and heredity. OBJECTIVE The aim of the study was to determine the main causes for outpatient visits in a dermatology outpatient clinic in Turkey. MATERIALS AND METHODS The outpatient clinic records of the Dermatology Department of Eskisehir Yunus Emre Government Hospital, dated between 1 January 2011 and 1 January 2012, were retrospectively assessed. Patients were grouped according to age, gender and clinical diagnosis. RESULTS A total of 11,040 new patients with 12,174 skin problems were included in the study. The study group was 55.7% female and 44.3% male. The age range was between 1 and 99 years. The most commonly encountered diseases were: acne (13.1% of patients), fungal infections (8.5%), contact dermatitis (8.5%), urticaria (8.3%), psoriasis (5.5%), viral warts (4.1%), lichen simplex chronicus (3.0%), callus, atopic dermatitis, and seborrheic dermatitis (2.2% each). CONCLUSIONS It appears that certain skin diseases acne, fungal infections, contact dermatitis and urticarial cause serious health problems. Public health policies should be implemented in order to manage these problems rationally.
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Affiliation(s)
- Memet Ersan Bilgili
- Department of Dermatology, Osmangazi University Medical Faculty, 26480 Eskisehir, Turkey
| | - Hamza Yildiz
- Department of Dermatology, Eskisehir Military Hospital, 26020 Eskisehir, Turkey
| | - Gulben Sarici
- Department of Dermatology, Eskisehir Government Hospital, 26020 Eskisehir, Turkey
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Toloza SMA, Vega-Hinojosa O, Chandran V, Valle Onate R, Espinoza LR. Psoriasis and psoriatic arthritis in Peruvian aborigines: a report from the GRAPPA 2011 annual meeting. J Rheumatol 2013; 39:2216-9. [PMID: 23118292 DOI: 10.3899/jrheum.120828] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To determine the presence of psoriasis and psoriatic arthritis (PsA) in aboriginal people living in the Andean Mountains of Peru. METHODS Consecutive patients with psoriasis and PsA attending an arthritis clinic in Juliaca, Puno, Peru, located 3824 m above sea level were examined. The CASPAR (ClASsification of Psoriatic ARthritis) criteria were used for classification of PsA. Diagnosis of psoriasis was confirmed by a dermatologist. RESULTS Seventeen patients [11 (65%) men and 6 (35%) women] fulfilled classification criteria for PsA; one patient was of European ancestry and is not included in this report. Of the 16 aboriginal patients in this report, 5 were natives of Quechua ancestry and one was native Aymara. At the time of their first clinic visit, no native patient with PsA had a family history of psoriasis or PsA, and all patients exhibited an established disease of long duration and severity. Methotrexate was the drug of choice for all patients; 2 patients are currently receiving biological therapy. CONCLUSION Contrary to what has been reported in the literature, both psoriasis and PsA are present in aboriginal people from the Andean Mountains of Peru. More studies are needed to further define the phenotype of these disorders, as well as the pathogenetic role of genetic and environmental factors.
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Affiliation(s)
- Sergio M A Toloza
- Department of Medicine, Hospital San Juan Bautista, Catamarca, Argentina; Hospital III, Juliaca, Peru
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Abstract
OBJECTIVES There are no known reports of the frequency of skin diseases endemic to rural Yucatan, Mexico. The aim of this study was to report the prevalence of dermatologic conditions in rural villages in that region. METHODS We conducted a retrospective descriptive study of all cases of skin disease diagnosed by a team of American board-certified dermatologists during consultations in January 2009, August 2009, and June 2010, in the state of Yucatan, Mexico. Traveling clinics were held in eight different rural locations. Age, sex, and diagnosis, according to history and physical examination, were recorded for each patient. RESULTS A total of 1071 cases of skin disease were seen in 858 patients. The frequency of parasitic, viral, and fungal infections was 34.5%. Dermatitis and eczema (24.6%) were the next most prevalent conditions, followed by disorders of skin appendages (12.2%), photosensitivity disorders (5.4%), papulosquamous disorders (3.2%), urticaria and erythema (1.5%), bacterial infections of the skin and subcutaneous tissue (1.2%), and neoplastic disorders (2.1%). The most frequently seen single diagnoses were viral warts (12.2%), scabies (8.7%), acne (7.4%), dermatophytosis (6.8%), contact dermatitis (3.5%), and nummular eczema (3.5%). CONCLUSIONS Infectious diseases, acne, and eczemas are the most common skin disorders seen in dermatology clinics in rural Yucatan, Mexico. Our findings may be useful in the development of public health initiatives targeting rural communities in this region.
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Affiliation(s)
- So Yeon Paek
- Department of Dermatology, University of Texas Southwestern Medical Center, Dallas, TX, USA
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