Crystal structure of chondroitin AC lyase, a representative of a family of glycosaminoglycan degrading enzymes

UI - 99264394NRC publication: Ye

Prevalence of Skin Disease in Urban Haiti: A Cross-Sectional Study

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

The prevalence of nonmelanoma skin cancer in a population of patients with oculocutaneous albinism in Haiti

Background Multiple studies have examined the prevalence of nonmelanoma skin cancers (NMSC) in patients with oculocutaneous albinism (OCA). However, to date, no studies have examined this data in Caribbean populations. Methods This study is a cross-sectional study of 106 patients with OCA who were seen at the Oculocutaneous Albinism Clinic in Port-au-Prince and Gros Morne, Haiti, between the dates of February 2017 and June 2018. Results In our population, 31/106 (29%) patients were found to have NMSC, 10/31 (32%) had BCC, 12/31 (39%) had SCC, and 9/31 (29%) had both types of NMSC. The most common age groups were 31-40 years, with the overall range of ages being 18-63 years. Also, 60/106 (57%) of the patients had actinic keratoses (AK). Conclusions Our study provides new data examining the prevalence of NMSC within a population of patients with OCA in Haiti. Overall, it shows that patients with albinism develop NMSC at an earlier age compared with the rest of the population. Therefore, appropriate skin cancer screening and surveillance should be implemented within this high-risk population group

Integração de dados georreferenciados para caracterização de unidades fisiográficas

This work was conduced with the goal of to estimate the potentiality of eight variables: gray levels of 3, 4 and 5 band of TM/Landsat -5, numeric model of the terrain and 1 st , 2 nd , 3 rd and 4 th order channels lenghts using a multivariate analysis. It were generated, throught of cluster analysis, graphics with dendograms forms. Combined with data integration: IHS/RGB of TM/Landsat - image transformation, numeric terrain models and drainage. All these elements allowed to separate the physiographics units, after field works, and th soils map generation.Pages: 27-2