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Alshurafa A, Alkhatib M, Abu-Tineh M, Yassin MA. Sickle cell leg ulcer successfully managed by hyperbaric oxygen: a case report. Front Med (Lausanne) 2023; 10:1171971. [PMID: 37396892 PMCID: PMC10310543 DOI: 10.3389/fmed.2023.1171971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 05/18/2023] [Indexed: 07/04/2023] Open
Abstract
Sickle cell leg ulcers (SCLUs) are usually chronic, painful, and devastating complications of sickle cell disease. Skin vaso-occlusion with compromised blood flow, chronic inflammation, and endothelial dysfunction is thought to be the underlying mechanism. It is usually slow to heal, and it may become chronic and superinfected. The management of SCLUs is usually challenging and requires a multidisciplinary team. Multiple systemic and local therapies have been tried in SCLU treatment. However, the outcome is variable: currently, there are no official recommendations for the best effective treatment. Herein, we report a 34-year-old male patient with non-transfusion-dependent sickle cell disease who was suffering from a chronic left ankle ulcer and was successfully managed with hyperbaric oxygen therapy, resulting in a complete resolution of this devastating complication.
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Affiliation(s)
- Awni Alshurafa
- Hematology Department, Hamad Medical Corporation, Doha, Qatar
| | - Mohammed Alkhatib
- Internal Medicine Department, Hamad Medical Corporation, Doha, Qatar
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Spira JAO, Borges EL, Guedes ACM, Andrade PGR, Lima VLDAN. Prevalence of people with sickle cell disease and leg ulcers in Brazil: Socioeconomic and clinical overview. PLoS One 2022; 17:e0274254. [PMID: 36084057 PMCID: PMC9462796 DOI: 10.1371/journal.pone.0274254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 08/25/2022] [Indexed: 11/18/2022] Open
Abstract
Objective To identify the prevalence of people with leg ulcers resulting from sickle cell disease, as well as to describe the clinical, social, economic, and demographic conditions of these people. Method Descriptive study, carried out at the Minas Gerais Hematology and Hemotherapy Center Foundation. The study population consisted of individuals over the age of 18 with a diagnosis of sickle cell disease in the State of Minas Gerais, Brazil. Data collection was performed from August 2019 to April 2020 through interviews. For the prevalence calculation, a census was taken of 5,379 people over the age of 18 with sickle cell disease, 77 of whom had active leg ulcers. Descriptive data analysis was performed using SPSS software (version 20.0, Chicago, IL, USA). Results The prevalence of people with leg ulcers in Minas Gerais, Brazil was 1.4%. Of the 72 respondents, the average age was 39 years (range 18–64 years), 41.7% were single, 48.6% said they were black, 84.7% lived in their own house, 38.9% were retired, 61.1% had an income of one minimum wage. The median years of education was 10.5, 50% cited the church as a place for leisure activities, 79.2% denied smoking. Regarding pain, the median score was 3, the median baseline hemoglobin was 7.7 g/dL, and 91.7% had the HbSS genotype. The median age of the first ulcer was 18 years, 77.8% of active ulcers were recurrent, and 59.7% had only one active ulcer. The median time of existence of the ulcer was 3 years. The ulcer prevented 80.6% of people from doing some activity. Prejudice was experienced by 48.6% of the participants. Conclusion The estimated prevalence of leg ulcers was lower than what it reported in the literature, however, the recurrence and the duration of ulcers were high. These findings bring reflection about the assistance to people with leg ulcer.
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Affiliation(s)
- Josimare Aparecida Otoni Spira
- Departamento de Enfermagem Básica, Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- * E-mail:
| | - Eline Lima Borges
- Departamento de Enfermagem Básica, Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Antônio Carlos Martins Guedes
- Departamento de Clínica Médica, Escola de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Paula Gabriela Ribeiro Andrade
- Ambulatório de Dermatologia, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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de Oliveira Toledo SL, Ladeira VS, Nogueira LS, Ferreira LGR, Oliveira MM, de Oliveira Renó C, dos Santos HL, Coelho-dos-Reis JGA, Campi-Azevedo AC, Teixeira-Carvalho A, Martins-Filho OA, Rios DRA, Barros-Pinheiro M. Plasma immune mediators as laboratorial biomarkers for Sickle Cell Disease patients according to the hydroxyurea therapy and disease severity. Blood Cells Mol Dis 2022; 98:102703. [DOI: 10.1016/j.bcmd.2022.102703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 08/17/2022] [Accepted: 09/06/2022] [Indexed: 10/14/2022]
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Moody KL. Association of Sickle Cell Pain & Symptoms on Health-Related Quality of Life Among Pediatric Patients. J Pain Symptom Manage 2022; 64:304-309. [PMID: 35550166 DOI: 10.1016/j.jpainsymman.2022.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/28/2022] [Accepted: 05/04/2022] [Indexed: 11/19/2022]
Abstract
CONTEXT Sickle cell disease (SCD) may cause significant complications leading to increased disease burden and poor psychosocial functioning. Yet, little is known about specific disease-related variables associated with decreased health-related quality of life (HRQOL) of this population. OBJECTIVES This study aims to discover whether pain and disease-related symptoms are associated with the HRQOL of pediatric patients diagnosed with SCD. METHODS A total of 150 patient (ages 8-17 years) and parent dyads were enrolled in this cross-sectional quantitative research study. Measures of HRQOL were gathered using the Pediatric Quality of Life (PedsQL) 3.0 SCD module, while the frequency of pain and SCD-related symptoms was reported by parent-proxy. Linear regression was deployed to analyze whether pain and SCD-related symptoms separately predict HRQOL scores in youth with SCD. RESULTS Study results revealed that the frequency of pain (P < 0.001) and SCD-related symptoms (P < 0.001) predicted lower HRQOL scores in children and adolescents with SCD. Moreover, age (P < 0.05) emerged as a significant predictor of HRQOL in this sample. CONCLUSION Pain and disease-related symptoms separately predicted lower HRQOL scores in the study sample, which shows that other SCD-related symptoms aside from pain has the potential to negatively impact youth with SCD. Implications for these findings extend the knowledge of clinicians in the healthcare setting to recognize the detriment of other SCD-related symptoms that may be overlooked, as pain is often the focus.
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Affiliation(s)
- Kendall L Moody
- School of Social Work, Howard University, Washington, District of Columbia, USA.
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5
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Santos EDC, Melo GIV, Santana PVB, Quadros IGS, Yahouédéhou SCMA, da Guarda CC, Santiago RP, Fiuza LM, Carvalho SP, Adorno EV, Kaneto CM, Fonseca TCC, Goncalves MS, Aleluia MM. A Description of the Hemolytic Component in Sickle Leg Ulcer: The Role of Circulating miR-199a-5p, miR-144, and miR-126. Biomolecules 2022; 12:biom12020317. [PMID: 35204817 PMCID: PMC8869177 DOI: 10.3390/biom12020317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 01/31/2022] [Accepted: 02/05/2022] [Indexed: 12/04/2022] Open
Abstract
Sickle leg ulcers (SLU) are malleoli lesions with exuberant hemolytic pathophysiology. The microRNAs are potential genetic biomarkers for several pathologies. Thereby, we aimed to assess the expression of circulating miR-199a-5p, miR-144, and miR-126 in association with hemolytic biomarkers in SLU. This cross-sectional study included 69 patients with sickle cell disease, 52 patients without SLU (SLU-) and 17 patients with active SLU or previous history (SLU+). The results demonstrated elevated expression of circulating miR-199a-5p and miR-144 in SLU+ patients while miR-126 expression was reduced. Circulating miR-199a-5p and miR-144 were associated with hemolytic biomarkers such as LDH, indirect bilirubin, AST, GGT, iron, ferritin, RBC, hemoglobin, and NOm, in addition to association with impaired clinical profile of SLU. Furthermore, in silico analyses indicated interactions of miR-199a-5p with HIF1A, Ets-1, and TGFB2 genes, which are associated with vasculopathy and reduced NO. In contrast, miR-126 was associated with an attenuating clinical profile of SLU, in addition to not characterizing hemolysis. In summary, this study demonstrates, for the first time, that hemolytic mechanism in SLU can be characterized by circulating miR-199a-5p and miR-144. The circulating miR-126 may play a protective role in SLU. Thus, these microRNAs can support to establish prognosis and therapeutic strategy in SLU.
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Affiliation(s)
- Edvan do Carmo Santos
- Laboratório de Patologia Aplicada e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus 45662-900, BA, Brazil; (E.d.C.S.); (G.I.V.M.); (P.V.B.S.); (C.M.K.)
| | - Gabriela Imbassahy Valentim Melo
- Laboratório de Patologia Aplicada e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus 45662-900, BA, Brazil; (E.d.C.S.); (G.I.V.M.); (P.V.B.S.); (C.M.K.)
| | - Paulo Vinícius Bispo Santana
- Laboratório de Patologia Aplicada e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus 45662-900, BA, Brazil; (E.d.C.S.); (G.I.V.M.); (P.V.B.S.); (C.M.K.)
| | | | - Sètondji Cocou Modeste Alexandre Yahouédéhou
- Laboratório de Investigação em Genética e Hematologia Translacional, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador 40296-710, BA, Brazil; (S.C.M.A.Y.); (C.C.d.G.); (R.P.S.); (L.M.F.); (S.P.C.); (M.S.G.)
| | - Caroline Conceição da Guarda
- Laboratório de Investigação em Genética e Hematologia Translacional, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador 40296-710, BA, Brazil; (S.C.M.A.Y.); (C.C.d.G.); (R.P.S.); (L.M.F.); (S.P.C.); (M.S.G.)
| | - Rayra Pereira Santiago
- Laboratório de Investigação em Genética e Hematologia Translacional, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador 40296-710, BA, Brazil; (S.C.M.A.Y.); (C.C.d.G.); (R.P.S.); (L.M.F.); (S.P.C.); (M.S.G.)
| | - Luciana Magalhães Fiuza
- Laboratório de Investigação em Genética e Hematologia Translacional, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador 40296-710, BA, Brazil; (S.C.M.A.Y.); (C.C.d.G.); (R.P.S.); (L.M.F.); (S.P.C.); (M.S.G.)
- Laboratório de Pesquisa em Anemias, Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal da Bahia, Salvador 40170-115, BA, Brazil;
| | - Suéllen Pinheiro Carvalho
- Laboratório de Investigação em Genética e Hematologia Translacional, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador 40296-710, BA, Brazil; (S.C.M.A.Y.); (C.C.d.G.); (R.P.S.); (L.M.F.); (S.P.C.); (M.S.G.)
- Laboratório de Pesquisa em Anemias, Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal da Bahia, Salvador 40170-115, BA, Brazil;
| | - Elisângela Vitória Adorno
- Laboratório de Pesquisa em Anemias, Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal da Bahia, Salvador 40170-115, BA, Brazil;
| | - Carla Martins Kaneto
- Laboratório de Patologia Aplicada e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus 45662-900, BA, Brazil; (E.d.C.S.); (G.I.V.M.); (P.V.B.S.); (C.M.K.)
| | | | - Marilda Souza Goncalves
- Laboratório de Investigação em Genética e Hematologia Translacional, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador 40296-710, BA, Brazil; (S.C.M.A.Y.); (C.C.d.G.); (R.P.S.); (L.M.F.); (S.P.C.); (M.S.G.)
- Laboratório de Pesquisa em Anemias, Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal da Bahia, Salvador 40170-115, BA, Brazil;
| | - Milena Magalhães Aleluia
- Laboratório de Patologia Aplicada e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus 45662-900, BA, Brazil; (E.d.C.S.); (G.I.V.M.); (P.V.B.S.); (C.M.K.)
- Correspondence: ; Tel.: +55-73-3680-5574
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Collins PJ, Renedo A, Marston CA. Communicating and understanding pain: Limitations of pain scales for patients with sickle cell disorder and other painful conditions. J Health Psychol 2022; 27:103-118. [PMID: 32744117 PMCID: PMC8739581 DOI: 10.1177/1359105320944987] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Pain communication in healthcare is challenging. We examine use of pain scales to communicate pain severity via a case study of people with sickle cell disorder (SCD). We show how pain communication involves complex social interactions between patients, healthcare professionals and significant others - none of which are included in pain ratings. Failure to account for relational aspects of pain may cause problems for any patient. For SCD, mutual distrust shapes pain communication, further complicating clinical assessments. Moreover, SCD pain is particularly severe, making ratings hard to interpret compared with ratings from non-SCD patients, potentially exacerbating problems in managing pain relief.
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Affiliation(s)
- Peter J Collins
- University of Greenwich, UK
- Munich Center for Mathematical Philosophy, Ludwig-Maximilian-University, Munich, Germany
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Knisely MR, Tanabe PJ, Yang Q, Masese R, Jiang M, Shah NR. Severe Pain Profiles and Associated Sociodemographic and Clinical Characteristics in Individuals With Sickle Cell Disease. Clin J Pain 2021; 37:669-677. [PMID: 34265788 PMCID: PMC8373671 DOI: 10.1097/ajp.0000000000000957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 03/18/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The aim of this study was to identify classes of individuals with sickle cell disease (SCD) who share distinct severe pain profiles and evaluate differences in demographic, clinical, and psychosocial characteristics between classes. METHODS This exploratory, cross-sectional study used data collected for the SCD Implementation Consortium Research Registry at Duke University. Using Adult Sickle Cell Quality of Life-Measurement System pain-item data from 291 adults with SCD, latent class analysis was used to determine classes of individuals sharing distinct severe pain profiles. Bivariate analyses and logistic regression models were used to assess the relationships between pain profile classes and demographic, clinical, and psychosocial characteristics. RESULTS Three classes sharing distinct severe pain profiles were identified: Low Frequency and Impact class (n=73), Moderate Frequency and Impact class (n=94), and High Frequency and Impact class (n=124). When compared with the Low Frequency and Impact class and controlling for age and sex, individuals in the Moderate Frequency and Impact class were more likely to: be female (P=0.031) and unemployed (P=0.013); report worse sleep (P=0.005) and social functioning (P=0.005); have less emotional distress (P=0.004); describe pain as "sore" (P=0.002); and have previous SCD-related lung complications (P=0.016). When compared with the Low Frequency and Impact class, individuals in the High Frequency and Impact class: had worse social functioning (P<0.001) and previous SCD-related lung complications (P=0.006); described pain as "sore" (P<0.001); and were taking pain medication daily for SCD (P=0.001). DISCUSSION Severe pain experiences in SCD are complex; however, there are subgroups of people who report similar experiences of severe pain.
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Affiliation(s)
| | - Paula J Tanabe
- Duke University School of Nursing
- Duke University School of Medicine, Durham, NC
| | | | | | - Meilin Jiang
- Department of Biostatistics, University of Florida, Gainesville, FL
| | - Nirmish R Shah
- Duke University School of Nursing
- Duke University School of Medicine, Durham, NC
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8
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Byeon J, Blizinsky KD, Persaud A, Findley K, Lee J, Buscetta AJ, You S, Bittinger K, Minniti CP, Bonham VL, Grice EA. Insights into the skin microbiome of sickle cell disease leg ulcers. Wound Repair Regen 2021; 29:801-809. [PMID: 33964094 PMCID: PMC8410641 DOI: 10.1111/wrr.12924] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 03/10/2021] [Accepted: 04/14/2021] [Indexed: 01/04/2023]
Abstract
Leg ulcers are estimated to occur in 1%-10% of North American patients with sickle cell disease (SCD). Their pathophysiology remains poorly defined, but as with other chronic wounds, it is hypothesised that the microbial milieu, or microbiome, contributes to their healing and clinical outcomes. This study utilises 16S ribosomal RNA (rRNA) gene sequencing to describe, for the first time, the microbiome of the SCD leg ulcer and its association with clinical factors. In a cross-sectional analysis of 42 ulcers, we recovered microbial profiles similar to other chronic wounds in the predominance of anaerobic bacteria and opportunistic pathogens including Staphylococcus, Corynebacterium, and Finegoldia. Ulcers separated into two clusters: one defined by predominance of Staphylococcus and smaller surface area, and the other displaying a greater diversity of taxa and larger surface area. We also find that the relative abundance of Porphyromonas is negatively associated with haemoglobin levels, a key clinical severity indicator for SCD, and that Finegoldia relative abundance is negatively associated with CD19+ B cell count. Finally, ratios of Corynebacterium:Lactobacillus and Staphylococcus:Lactobacillus are elevated in the intact skin of individuals with a history of SCD leg ulcers, while the ratio of Lactobacillus:Bacillus is elevated in that of individuals without a history of ulcers. Investigations of the skin microbiome in relation to SCD ulcer pathophysiology can inform clinical guidelines for this poorly understood chronic wound, as well as enhance broader understanding about the role of the skin microbiome in delayed wound healing.
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Affiliation(s)
- Julia Byeon
- Social and Behavioral Research BranchNational Human Genome Research Institute, National Institutes of HealthBethesdaMarylandUSA
| | - Katherine D. Blizinsky
- All of Us Research ProgramNational Institutes of HealthBethesdaMarylandUSA
- NeurologyRush Alzheimer's Disease Center, Rush Medical CollegeChicagoIllinoisUSA
| | - Anitra Persaud
- Social and Behavioral Research BranchNational Human Genome Research Institute, National Institutes of HealthBethesdaMarylandUSA
| | - Keisha Findley
- Social and Behavioral Research BranchNational Human Genome Research Institute, National Institutes of HealthBethesdaMarylandUSA
| | - Jung‐Jin Lee
- The Children's Hospital of PhiladelphiaMicrobiome Center Roberts Center for Pediatric ResearchPhiladelphiaPennsylvaniaUSA
| | - Ashley J. Buscetta
- Social and Behavioral Research BranchNational Human Genome Research Institute, National Institutes of HealthBethesdaMarylandUSA
| | - Shuo You
- Department of Medicine, Division of HematologyMontefiore Medical Center, Albert Einstein College of MedicineBronxNew YorkUSA
| | - Kyle Bittinger
- The Children's Hospital of PhiladelphiaMicrobiome Center Roberts Center for Pediatric ResearchPhiladelphiaPennsylvaniaUSA
| | - Caterina P. Minniti
- Albert Einstein College of Medicine, Center for Sickle Cell Disease ResearchMontefiore Medical CenterBronxNew YorkUSA
| | - Vence L. Bonham
- Social and Behavioral Research BranchNational Human Genome Research Institute, National Institutes of HealthBethesdaMarylandUSA
| | - Elizabeth A. Grice
- Department of Dermatology and MicrobiologyUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPennsylvaniaUSA
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Kusnanto K, Alfaqih M, Padoli P, Arifin H. A Qualitative Study Inquiry among Patients with Diabetic Foot Ulcers: What have They Felt? Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.6262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND: Diabetic foot ulcers (DFU) caused physical and psychosocial problems and the risk of amputations and death.
AIM: The aim of the study was to overview the feelings of diabetes mellitus patients with DFU.
METHODS: A phenomenological qualitative study design was undertaken from January to April 2020. A total of 25 patients with DFU were determined through the purposive sampling technique. The study was conducted among the patients undertaking home-based wound care in Bojonegoro, Indonesia. The proposed discussion guidelines were used to collect the data through in-depth interviews. Colaizzi’s technique was used to analyze the data and it was managed by NVIVO.
RESULTS: We emerged two themes: Psychological and physiological response of patients with DFU and coping mechanisms in caring DFU. Among the patients with DFU, we determined their psychological responses and coping mechanisms as reported in this study.
CONCLUSIONS: Patients with DFU are expected to be able to control themselves psychologically. Health workers such as doctors and nurses can provide interventions by considering the psychological condition of patients with DFU. A good psychological condition can ensure that their blood sugar is regulated properly.
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Desine S, Eskin L, Bonham VL, Koehly LM. Social support networks of adults with sickle cell disease. J Genet Couns 2021; 30:1418-1427. [PMID: 33847032 DOI: 10.1002/jgc4.1410] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 02/13/2021] [Accepted: 02/15/2021] [Indexed: 11/10/2022]
Abstract
Sickle cell disease (SCD) can cause both physical and psychological complications, such as severe pain and depression. These effects often necessitate social and caregiving support. Few studies have assessed support networks within the adult SCD population. Here, we describe the support networks of adults with SCD and identify who in these networks (1) provides emotional support, (2) is dependable during crisis situations, including social and financial adversities, and (3) provides assistance in health crises. Forty-nine adults with SCD completed surveys and social network assessments through interview. Generalized mixed-effects linear regression models were fitted to investigate the composition of support provision within these personal networks. Our findings indicate that parents and 'other important people' (e.g., friends, spouses) play key roles in the support provided to those with SCD. Siblings with SCD appeared to be more emotionally supportive than unaffected siblings. With much research centered around the pediatric and adolescent SCD populations, focus needs to extend to adults and the individuals involved in their care and disease management. Understanding the flow of support within these networks can help genetic counselors and healthcare providers to better identify both social ties that serve as support resources and less supportive relationships for individuals living with SCD and other chronic genetic conditions that might be targeted for intervention.
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Affiliation(s)
- Stacy Desine
- Health Disparities Unit, Social and Behavioral Research Branch, National Human Genome Research Institute, Bethesda, MD, USA
| | - Lena Eskin
- Social Network Methods Section, Social and Behavioral Research Branch, National Human Genome Research Institute, Bethesda, MD, USA
| | - Vence L Bonham
- Health Disparities Unit, Social and Behavioral Research Branch, National Human Genome Research Institute, Bethesda, MD, USA
| | - Laura M Koehly
- Social Network Methods Section, Social and Behavioral Research Branch, National Human Genome Research Institute, Bethesda, MD, USA
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Minniti CP, Knight‐Madden J, Tonda M, Gray S, Lehrer‐Graiwer J, Biemond BJ. The impact of voxelotor treatment on leg ulcers in patients with sickle cell disease. Am J Hematol 2021; 96:E126-E128. [PMID: 33476432 PMCID: PMC7986764 DOI: 10.1002/ajh.26101] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/13/2021] [Accepted: 01/17/2021] [Indexed: 12/19/2022]
Affiliation(s)
- Caterina P. Minniti
- Department of Hematology Montefiore Medical Center/Albert Einstein College of Medicine Bronx New York
| | - Jennifer Knight‐Madden
- Sickle Cell Unit, Caribbean Institute for Health Research University of the West Indies, Mona Kingston Jamaica
| | - Margaret Tonda
- Global Blood Therapeutics South San Francisco California
| | - Sarah Gray
- Global Blood Therapeutics South San Francisco California
| | | | - Bart J. Biemond
- Department of Hematology, Amsterdam University Medical Centers University of Amsterdam Amsterdam The Netherlands
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12
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Andrade PG, Spira JAO, Borges EL, Gomes MDL. PROFILE OF WOMEN WITH LEG ULCERS DUE TO SICKLE CELL DISEASE. ESTIMA 2021. [DOI: 10.30886/estima.v19.993_in] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objective: to characterize the profile of women with leg ulcers resulting from sickle cell disease treated at a public health institution in Brazil. Method: historical cohort study conducted in the outpatient sector with a sample of women with sickle cell disease and leg ulcer, followed from 1998 to 2014. The data were extracted from the medical record and included sociodemographic, clinical and ulcer-related variables, and underwent descriptive statistical analysis. Results: of the 17 women, 64.7% were cured, 58.8% were aged between 30 and 39 years, 64.7% declared themselves brown, 70.6% were without partners, 41.2% had incomplete elementary education, 52, 9% had an income of 2 to 3 minimum wages, 70.6% were eutrophic and 82.4% used vitamin supplements. Women had a total of 29 ulcers, 52.9% had a single ulcer, 41.4% were located in the malleolar region, 55.17% were between 2 and 36 months, all classified as stage 3. The treatment was with coverings and Unna’s boot. Conclusion: the women received care from specialist nurses and most were cured with up to eight months of follow-up, which required a nursing consultation, including clinical evaluation, topical treatment and application of compression therapy.
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Andrade PG, Spira JAO, Borges EL, Gomes MDL. PERFIL DE MULHERES COM ÚLCERAS DA PERNA DECORRENTES DE DOENÇA FALCIFORME. ESTIMA 2021. [DOI: 10.30886/estima.v19.993_pt] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objetivo:caracterizar o perfil de mulheres com úlceras da perna decorrentes da doença falciforme atendidas em uma instituição pública de saúde do Brasil. Método: estudo de coorte histórica realizado no setor ambulatorial com amostra de mulheres com doença falciforme e úlcera da perna, acompanhadas de 1998 a 2014. Os dados foram extraídos do prontuário e contemplaram variáveis sociodemográficas, clínicas e relacionadas à úlcera, e passaram por análise estatística descritiva. Resultados: das 17 mulheres, 64,7% obtiveram cura, 58,8% tinham idade entre 30 e 39 anos, 64,7% se autodeclaram pardas, 70,6% estavam sem parceiros, 41,2% possuíam ensino fundamental incompleto, 52,9% tinham renda de 2 a 3 salários mínimos, 70,6% eram eutróficas e 82,4% faziam uso de suplementos vitamínicos. As mulheres apresentaram o total de 29 úlceras, 52,9% tinham úlcera única, 41,4% localizadas na região maleolar, 55,17% com existência entre 2 e 36 meses, todas classificadas em estágio 3. O tratamento foi com coberturas e bota de Unna. Conclusão: as mulheres receberam cuidados de enfermeiros especialistas e a maioria obteve a cura com até oito meses de acompanhamento que demandou a consulta de enfermagem, contemplando a avaliação clínica, o tratamento tópico e aplicação da terapia de compressão.
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Aranke M, Pham CT, Yilmaz M, Wang JK, Orhurhu V, An D, Cornett EM, Kaye AD, Ngo AL, Imani F, Farahmand Rad R, Varrassi G, Viswanath O, Urits I. Topical Sevoflurane: A Novel Treatment for Chronic Pain Caused by Venous Stasis Ulcers. Anesth Pain Med 2021; 11:e112832. [PMID: 34221949 PMCID: PMC8241821 DOI: 10.5812/aapm.112832] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/14/2021] [Accepted: 02/14/2021] [Indexed: 11/16/2022] Open
Abstract
In the US, an estimated 1 - 2% of chronic venous insufficiency (CVI) patients (of 6 - 7 million nationwide) develop at least one venous stasis ulcer (VSU) during their illness. Of these, approximately 40% develop subsequent ulcers, making VSU prognostically poor. Current management of VSU is costly, with poor prognosis, high recurrence rate, inadequate pain management, and significantly reduced quality of life (QoL). Topical volatile anesthetic agents, such as sevoflurane, offer improved pain relief and symptom control in patients suffering from chronic VSU. The immediate impact of topical sevoflurane in reducing pain associated with ulcer bed debridement has several implications in improving the quality of life in patients with CVI induced ulcers and in the prognosis and healing of the ulcers. This review summarizes a topical formulation of a volatile anesthetic and its implications for the management of VSUs.
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Affiliation(s)
- Mayank Aranke
- Texas Tech University Health Sciences Center, School of Medicine, Harvard TH Chan School of Public Health, Lubbock, Texas, USA
| | - Cynthia T Pham
- Georgetown University School of Medicine, MedStar Georgetown University Hospital, Washington, DC, USA
| | | | | | | | - Daniel An
- Georgetown University School of Medicine, MedStar Georgetown University Hospital, Washington, DC, USA
| | - Elyse M. Cornett
- LSU Health Shreveport, Department of Anesthesiology, Shreveport, LA, USA
| | - Alan David Kaye
- LSU Health Shreveport, Department of Anesthesiology, Shreveport, LA, USA
| | - Anh L Ngo
- Pain Specialty Group, Portsmouth, NH, USA
| | - Farnad Imani
- Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Reza Farahmand Rad
- Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Omar Viswanath
- LSU Health Shreveport, Department of Anesthesiology, Shreveport, LA, USA
- Creighton University School of Medicine, Department of Anesthesiology, Omaha, NE, USA
- Valley Pain Consultants – Envision Physician Services, Phoenix, AZ, USA
- University of Arizona College of Medicine-Phoenix, Department of Anesthesiology, Phoenix, AZ, USA
| | - Ivan Urits
- LSU Health Shreveport, Department of Anesthesiology, Shreveport, LA, USA
- Southcoast Health, Southcoast Health Physicians Group Pain Medicine, Wareham, MA, USA
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Martí-Carvajal AJ, Knight-Madden JM, Martinez-Zapata MJ. Interventions for treating leg ulcers in people with sickle cell disease. Cochrane Database Syst Rev 2021; 1:CD008394. [PMID: 34559425 PMCID: PMC8407242 DOI: 10.1002/14651858.cd008394.pub4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND The frequency of skin ulceration makes an important contributor to the morbidity burden in people with sickle cell disease. Many treatment options are available to the healthcare professional, although it is uncertain which treatments have been assessed for effectiveness in people with sickle cell disease. This is an update of a previously published Cochrane Review. OBJECTIVES To assess the clinical effectiveness and harms of interventions for treating leg ulcers in people with sickle cell disease. SEARCH METHODS We searched the Cochrane Cystic Fibrosis and Genetic Disorders Group's Haemoglobinopathies Trials Register. We searched LILACS (1982 to January 2020), ISI Web of Knowledge (1985 to January 2020), and the Clinical Trials Search Portal of the World Health Organization (January 2020). We checked the reference lists of all the trials identified. We also contacted those groups or individuals who may have completed relevant randomised trials in this area. Date of the last search of the Cochrane Cystic Fibrosis and Genetic Disorders Group's Haemoglobinopathies Trials Register: 13 January 2020; date of the last search of the Cochrane Wounds Group Trials Register: 17 February 2017. SELECTION CRITERIA Randomised controlled trials of interventions for treating leg ulcers in people with sickle cell disease compared to placebo or an alternative treatment. DATA COLLECTION AND ANALYSIS Two authors independently selected studies for inclusion. All three authors independently assessed the risk of bias of the included studies and extracted data. We used GRADE to assess the quality of the evidence. MAIN RESULTS Six studies met the inclusion criteria (198 participants with 250 ulcers). Each trial investigated a different intervention and within this review we have grouped these as systemic pharmaceutical interventions (L-cartinine, arginine butyrate, isoxsuprine) and topical pharmaceutical interventions (Solcoseryl® cream, arginine-glycine-aspartic acid (RGD) peptide dressing and topical antibiotics). No trials on non-pharmaceutical interventions were included in the review. All trials had an overall unclear or high risk of bias, and drug companies sponsored four of them. We were unable to pool findings due to the heterogeneity in outcome definitions, and inconsistency between the units of randomisation and analysis. Three interventions reported on the change in ulcer size (arginine butyrate, RGD peptide, L-cartinine). Of these, only arginine butyrate showed a reduction of ulcer size compared with a control group, mean reduction -5.10 cm² (95% CI -9.65 to -0.55), but we are uncertain whether this reduces ulcer size compared to standard care alone as the certainty of the evidence has been assessed as very low. Three trials reported on complete leg ulcer closure (isoxsuprine, arginine butyrate, RGD peptide matrix; very low quality of evidence). None reported a clinical benefit. No trial reported on: the time to complete ulcer healing; ulcer-free survival following treatment for sickle cell leg ulcers; quality of life measures; incidence of amputation or harms. AUTHORS' CONCLUSIONS Given the very low quality of the evidence identified in this updated Cochrane Review we are uncertain whether any of the assessed pharmaceutical interventions reduce ulcer size or result in leg ulcer closure in treated participants compared to controls. However, this intervention was assessed as having a high risk of bias due to inadequacies in the single trial report. Other included studies were also assessed as having an unclear or high risk of bias. The harm profile of the all interventions remains inconclusive.
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Affiliation(s)
- Arturo J Martí-Carvajal
- Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE (Cochrane Ecuador), Quito, Ecuador
- School of Medicine, Universidad Francisco de Vitoria (Cochrane Madrid), Madrid, Spain
| | | | - Maria José Martinez-Zapata
- Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau), CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
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Granja PD, Quintão SBM, Perondi F, de Lima RBF, Martins CLDM, Marques MA, de Oliveira JCP. Leg ulcers in sickle cell disease patients. J Vasc Bras 2020; 19:e20200054. [PMID: 34211517 PMCID: PMC8218003 DOI: 10.1590/1677-5449.200054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Leg ulcers are the most common cutaneous complication of sickle cell disease. These lesions occur mainly in homozygous forms, are slow to heal and often relapse, causing negative physical, emotional, and economic impacts. In this paper, we discuss the clinical presentation, diagnosis, and pathophysiology of sickle cell leg ulcers and their implications for treatment.
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Affiliation(s)
- Paula Dadalti Granja
- Departamento de Medicina Clínica - MMC, Faculdade de Medicina, Universidade Federal Fluminense - UFF, Niterói, RJ, Brasil
| | | | - Franciele Perondi
- Departamento de Medicina Clínica - MMC, Faculdade de Medicina, Universidade Federal Fluminense - UFF, Niterói, RJ, Brasil
| | | | | | - Marcos Arêas Marques
- Hospital Universitário Pedro Ernesto, Universidade do Estado do Rio de Janeiro - UERJ, Rio de Janeiro, RJ, Brasil.,Hospital Universitário Gaffrée e Guinle, Universidade Federal do Estado do Rio de Janeiro - UNIRIO, Rio de Janeiro, RJ, Brasil
| | - Julio Cesar Peclat de Oliveira
- Hospital Universitário Gaffrée e Guinle, Universidade Federal do Estado do Rio de Janeiro - UNIRIO, Rio de Janeiro, RJ, Brasil.,Cirurgia Vascular, Universidade Federal do Rio de Janeiro - UFRJ, Rio de Janeiro, RJ, Brasil
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Araújo WAD, Assis WC, Vilela ABA, Boery RNSDO, Rodrigues VP, Rocha RM. Meanings of living with a chronic wound: a meta-synthesis study. ESTIMA 2020. [DOI: 10.30886/estima.v18.936_in] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objective: explore qualitative research on the meanings of living with a chronic wound. Method: it is a qualitative meta-synthesis. 13 articles were included, totaling a sample of 248 individuals who self-reported living with a chronic wound. The Critical Appraisal Skills Program instrument was used to evaluate the eligible articles, and to report the qualitative synthesis, the recommendations of Enhancing transparency in reporting the synthesis of qualitative research were followed. The analysis and extraction of information and construction of the synthesis were carried out by two independent reviewers, with the assistance of a third expert reviewer. Results: living with a chronic wound involves initial concerns and the appearance of symptoms, especially marked pain. They report that the increase in pain led to low functional capacity, as well as weakened social relationships and financial conditions. The experiences illustrate the challenges of emotional burden and the implications of illness, which contributed to social isolation. Religiosity and spirituality were the main coping strategies. Conclusion: living with a chronic wound means a condition of pain, limits physical and functional capacity, causes negative feelings and emotions that result in people’s isolation.
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Araújo WAD, Assis WC, Vilela ABA, Boery RNSDO, Rodrigues VP, Rocha RM. Significados de viver com ferida crônica: estudo de metassíntese. ESTIMA 2020. [DOI: 10.30886/estima.v18.936_pt] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objetivo: explorar pesquisas qualitativas sobre os significados de viver com ferida crônica. Método: trata-se de uma metassíntese qualitativa. Foram incluídos 13 artigos, totalizando uma amostra de 248 indivíduos que autorreportaram viver com ferida crônica. Utilizou-se o instrumento do Critical Appraisal Skills Programme para avaliação dos artigos elegíveis, e para relatar a síntese qualitativa, seguiram-se as recomendações do Enhancing transparency in reporting the synthesis of qualitative research. A análise e extração das informações e construção da síntese foram feitas por dois revisores independentes, sob o auxílio de um terceiro revisor especialista. Resultados: viver com ferida crônica envolve preocupações iniciais e aparecimento dos sintomas, especialmente dor marcante. Relatam que o aumento da dor levou à baixa capacidade funcional, bem como relações sociais e condição financeira fragilizadas. As experiências ilustram os desafios da carga emocional e das implicações do adoecimento, que contribuíram para o isolamento social. A religiosidade e espiritualidade foram as principais estratégias de enfrentamento. Conclusão: viver com ferida crônica significa uma condição de dor, limita a capacidade física e funcional, provoca sentimentos e emoções negativas que resultam no isolamento das pessoas.
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de Carvalho-Siqueira GQ, Ananina G, de Souza BB, Borges MG, Ito MT, da Silva-Costa SM, de Farias Domingos I, Falcão DA, Lopes-Cendes I, Bezerra MAC, da Silva Araújo A, Lucena-Araújo AR, de Souza Gonçalves M, Saad STO, Costa FF, de Melo MB. Whole-exome sequencing indicates FLG2 variant associated with leg ulcers in Brazilian sickle cell anemia patients. Exp Biol Med (Maywood) 2019; 244:932-939. [PMID: 31079484 DOI: 10.1177/1535370219849592] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Although sickle cell anemia results from homozygosity for a single mutation at position 7 of the β-globin chain, the clinical aspects of this condition are very heterogeneous. Complications include leg ulcers, which have a negative impact on patients’ quality of life and are related to the severity of the disease. Nevertheless, the complex pathogenesis of this complication has yet to be elucidated. To identify novel genes associated with leg ulcers in sickle cell anemia, we performed whole-exome sequencing of extreme phenotypes in a sample of Brazilian sickle cell anemia patients and validated our findings in another sample. Our discovery cohort consisted of 40 unrelated sickle cell anemia patients selected based on extreme phenotypes: 20 patients without leg ulcers, aged from 40 to 61 years, and 20 with chronic leg ulcers. DNA was extracted from peripheral blood leukocytes and used for whole-exome sequencing. After the bioinformatics analysis, eight variants were selected for validation by Sanger sequencing and TaqMan® genotyping in 293 sickle cell anemia patients (153 without leg ulcers) from two different locations in Brazil. After the validation, Fisher’s exact test revealed a statistically significant difference in a stop codon variant (rs12568784 G/T) in the FLG2 gene between the GT and GG genotypes ( P = 0.035). We highlight the importance of rs12568784 in leg ulcer development as this variant of the FLG2 gene results in impairment of the skin barrier, predisposing the individual to inflammation and infection. Additionally, we suggest that the remaining seven variants and the genes in which they occur could be strong candidates for leg ulcers in sickle cell anemia. Impact statement To our knowledge, the present study is the first to use whole-exome sequencing based on extreme phenotypes to identify new candidate genes associated with leg ulcers in sickle cell anemia patients. There are few studies about this complication; the pathogenesis remains complex and has yet to be fully elucidated. We identified interesting associations in genes never related with this complication to our knowledge, especially the variant in the FLG2 gene. The knowledge of variants related with leg ulcer in sickle cell anemia may lead to a better comprehension of the disease’s etiology, allowing prevention and early treatment options in risk genotypes while improving quality of life for these patients.
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Affiliation(s)
| | - Galina Ananina
- 1 Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas, Campinas, SP 13083-875, Brazil
| | - Bruno Batista de Souza
- 1 Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas, Campinas, SP 13083-875, Brazil
| | - Murilo Guimarães Borges
- 2 Department of Medical Genetics and Genome Medicine, Faculty of Medical Sciences, University of Campinas, Campinas, SP 13083-887, Brazil
| | - Mirta Tomie Ito
- 1 Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas, Campinas, SP 13083-875, Brazil
| | - Sueli Matilde da Silva-Costa
- 1 Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas, Campinas, SP 13083-875, Brazil
| | - Igor de Farias Domingos
- 3 Genetics Postgraduate Program, Federal University of Pernambuco, Recife, PE 50670-901, Brazil
| | - Diego Arruda Falcão
- 3 Genetics Postgraduate Program, Federal University of Pernambuco, Recife, PE 50670-901, Brazil
| | - Iscia Lopes-Cendes
- 2 Department of Medical Genetics and Genome Medicine, Faculty of Medical Sciences, University of Campinas, Campinas, SP 13083-887, Brazil
| | | | | | | | | | | | | | - Mônica Barbosa de Melo
- 1 Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas, Campinas, SP 13083-875, Brazil
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Toledo SLDO, Guedes JVM, Alpoim PN, Rios DRA, Pinheiro MDB. Sickle cell disease: Hemostatic and inflammatory changes, and their interrelation. Clin Chim Acta 2019; 493:129-137. [PMID: 30825426 DOI: 10.1016/j.cca.2019.02.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 02/26/2019] [Accepted: 02/26/2019] [Indexed: 12/23/2022]
Abstract
Sickle cell disease, the most common genetic blood disorder in the world, has high clinical variability, negatively impacts quality of life and contributes to early mortality. Sickled erythrocytes cause blood flow obstruction, hemolysis, and several hemostatic changes that promote coagulation. These events, in turn, induce chronic inflammation, characterized by elevated plasma levels of pro-inflammatory markers, which aggravates the already unfavorable state of the circulatory system. Empirical evidence indicates that the hemostatic and inflammatory systems continuously interact with each other and thereby further propagate the hypercoagulability and inflammatory conditions. In this review article, we discuss the pathophysiological aspects of sickle cell disease and the hemostatic and inflammatory changes that underlie its pathogenesis.
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Affiliation(s)
- Sílvia L de O Toledo
- Federal University of São João del-Rei (UFSJ), Dona Lindu Center-West Campus, Sebastião Gonçalves Coelho Street, 400, Chanadour, 35501-296 Divinópolis, MG, Brazil
| | - João V M Guedes
- Federal University of São João del-Rei (UFSJ), Dona Lindu Center-West Campus, Sebastião Gonçalves Coelho Street, 400, Chanadour, 35501-296 Divinópolis, MG, Brazil
| | - Patrícia N Alpoim
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais (MG), Brazil
| | - Danyelle R A Rios
- Federal University of São João del-Rei (UFSJ), Dona Lindu Center-West Campus, Sebastião Gonçalves Coelho Street, 400, Chanadour, 35501-296 Divinópolis, MG, Brazil
| | - Melina de B Pinheiro
- Federal University of São João del-Rei (UFSJ), Dona Lindu Center-West Campus, Sebastião Gonçalves Coelho Street, 400, Chanadour, 35501-296 Divinópolis, MG, Brazil.
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Rodrigues M, Bonham CA, Minniti CP, Gupta K, Longaker MT, Gurtner GC. Iron Chelation with Transdermal Deferoxamine Accelerates Healing of Murine Sickle Cell Ulcers. Adv Wound Care (New Rochelle) 2018; 7:323-332. [PMID: 30374417 PMCID: PMC6203233 DOI: 10.1089/wound.2018.0789] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 03/31/2018] [Indexed: 12/21/2022] Open
Abstract
Objective: Sickle cell ulcers (SCUs) are a devastating comorbidity affecting patients with sickle cell disease (SCD). SCUs form over the medial or lateral malleoli of the lower extremity, are slow to heal, and prone to recidivism. Some SCUs may never heal, leading to chronic pain and foot deformities. There is no specific and effective therapy for SCUs. Systemic deferoxamine (DFO) has been demonstrated to prevent some of the sequelae of SCD by chelating iron. In this study, we tested the ability of DFO delivered via a transdermal delivery system (DFO-TDDS) to accelerate healing in a murine model of SCU. Approach: Excisional wounds were created in a transgenic murine model of SCD expressing >99% human sickle hemoglobin, and healing rates were compared with wounds in wild-type mice. Next, excisional wounds in SCD mice were treated with DFO-TDDS, DFO injection, or left untreated. Wound closure rates, histology, and iron in the healed wounds were analyzed. Results: Wounds in SCD mice healed significantly slower than wild-type mice (***p < 0.001). DFO-TDDS-treated wounds demonstrated significantly accelerated time to closure, reduced size, and improved wound remodeling compared with untreated wounds (***p < 0.001) and DFO injection treatment (*p < 0.05). DFO released from the TDDS into wounds resulted in chelation of excessive dermal-free iron. Innovation: DFO-TDDS is a novel therapeutic that is effective in healing wounds in sickle cell mice. Conclusion: DFO-TDDS significantly accelerates healing of murine SCUs by chelation of excessive free iron and is currently manufactured in an FDA-compliant facility to be translated for treating human SCUs.
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Affiliation(s)
- Melanie Rodrigues
- Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Clark A. Bonham
- Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Caterina P. Minniti
- Division of Hematology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York
| | - Kalpna Gupta
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Michael T. Longaker
- Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Geoffrey C. Gurtner
- Department of Surgery, Stanford University School of Medicine, Stanford, California
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