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1.
Nutrients ; 13(9)2021 Sep 18.
Artigo em Inglês | MEDLINE | ID: mdl-34579131

RESUMO

In our previous study, intravenous (IV) injection of selenium alleviated breast cancer-related lymphedema (BCRL). This secondary analysis aimed to explore the metabolic effects of selenium on patients with BCRL. Serum samples of the selenium-treated (SE, n = 15) or the placebo-controlled (CTRL, n = 14) groups were analyzed by ultra-high-performance liquid chromatography with Q-Exactive Orbitrap tandem mass spectrometry (UHPLC-Q-Exactive Orbitrap/MS). The SE group showed a lower ratio of extracellular water to segmental water (ECW/SW) in the affected arm to ECW/SW in the unaffected arm (arm ECW/SW ratio) than the CTRL group. Metabolomics analysis showed a valid classification at 2-weeks and 107 differential metabolites were identified. Among them, the levels of corticosterone, LTB4-DMA, and PGE3-which are known anti-inflammatory compounds-were elevated in the SE group. Pathway analysis demonstrated that lipid metabolism (glycerophospholipid metabolism, steroid hormone biosynthesis, or arachidonic acid metabolism), nucleotide metabolism (pyrimidine or purine metabolism), and vitamin metabolism (pantothenate and CoA biosynthesis, vitamin B6 metabolism, ascorbate and aldarate metabolism) were altered in the SE group compared to the CTRL group. In addition, xanthurenic acid levels were negatively associated with whole blood selenium level (WBSe) and positively associated with the arm ECW/SW. In conclusion, selenium IV injection improved the arm ECW/SW ratio and altered the serum metabolic profiles in patients with BCRL, and improved the anti-inflammatory process in lipid, nucleotide and vitamin pathways, which might alleviate the symptoms of BCRL.


Assuntos
Neoplasias da Mama/complicações , Linfedema/sangue , Linfedema/tratamento farmacológico , Metabolômica/métodos , Selenito de Sódio/administração & dosagem , Alprostadil/análogos & derivados , Alprostadil/sangue , Cromatografia Líquida de Alta Pressão , Corticosterona/sangue , Feminino , Humanos , Injeções Intravenosas , Leucotrieno B4/sangue , Linfedema/etiologia , Placebos , Espectrometria de Massas em Tandem
2.
Pediatr Res ; 89(7): 1780-1787, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-32932426

RESUMO

BACKGROUND: Circulatory miRNAs are promising biomarkers. The feasibility of using miRNA from dried blood spots (DBS) was investigated using newborn screening cards from patients with cholestasis-lymphedema syndrome (Aagenaes syndrome) and controls. METHODS: Total amount of miRNA and specific miRNAs from DBS were analyzed. miRNA was also obtained from newborn screening cards in patients with cholestasis-lymphedema syndrome/Aagenaes syndrome and in healthy newborns. RESULTS: No differences in miRNA concentrations were found between multispotted samples and samples with one single drop of blood and between central and peripheral punches. Ten repeated freeze-thaw cycles did not significantly change miRNA levels from controls. miR-299 (1.73-fold change, p = 0.034) and miR-365 (1.46-fold change, p = 0.011) were upregulated and miR-30c (0.72-fold change, p = 0.0037), miR-652 (0.85-fold change, p = 0.025), and miR-744 (0.72-fold change, p = 0.0069) were downregulated in patients with Aagenaes syndrome at birth compared to controls. CONCLUSIONS: miRNAs were not affected by multispotting or punch location and were stable throughout repeated freeze-thaw cycles. miRNA in dried blood spots could be used to detect differential expression of miRNA in newborns with Aagenaes syndrome and healthy controls in newborn screening cards. Dried blood spots may be a useful source to explore circulating miRNA as biomarkers. IMPACT: Circulating miRNAs can be useful biomarkers. miRNAs from dried blood spots were not affected by multispotting or punch location and were stable throughout repeated freeze-thaw cycles. Discrimination between patients and controls are allowed even with few individuals. Early after birth, patients with cholestasis-lymphedema syndrome exhibit miRNA profiles associated with liver fibrosis. This study demonstrated that newborn screening cards may be a useful source for studying miRNA as the technical variability is smaller than biological variation.


Assuntos
Colestase/sangue , Teste em Amostras de Sangue Seco , Linfedema/sangue , MicroRNAs/sangue , Biomarcadores/sangue , Colestase/genética , Feminino , Humanos , Recém-Nascido , Linfedema/genética , Masculino , Triagem Neonatal/métodos
3.
J Surg Res ; 253: 294-303, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32407981

RESUMO

BACKGROUND: Lipedema is a common adipose tissue disorder affecting women, characterized by a symmetric subcutaneous adipose tissue deposition, particularly of the lower extremities. Lipedema is usually underdiagnosed, thus remaining an undertreated disease. Importantly, no histopathologic or molecular hallmarks exist to clearly diagnose the disease, which is often misinterpreted as obesity or lymphedema. MATERIALS AND METHODS: The aim of the present study is to characterize in detail morphologic and molecular alterations in the adipose tissue composition of lipedema patients compared with healthy controls. Detailed histopathologic and molecular characterization was performed using lipid and cytokine quantification as well as gene expression arrays. The analysis was conducted on anatomically matched skin and fat tissue biopsies as well as fasting serum probes obtained from 10 lipedema and 11 gender and body mass index-matched control patients. RESULTS: Histologic evaluation of the adipose tissue showed increased intercellular fibrosis and adipocyte hypertrophy. Serum analysis showed an aberrant lipid metabolism without changes in the circulating adipokines. In an adipogenesis gene array, a distinct gene expression profile associated with macrophages was observed. Histologic assessment of the immune cell infiltrate confirmed the increased presence of macrophages, without changes in the T-cell compartment. CONCLUSIONS: Lipedema presents a distinguishable disease with typical tissue architecture and aberrant lipid metabolism, different to obesity or lymphedema. The differentially expressed genes and immune cell infiltration profile in lipedema patients further support these findings.


Assuntos
Adipogenia/genética , Lipedema/diagnóstico , Gordura Subcutânea/patologia , Adipocinas/sangue , Biomarcadores/sangue , Biomarcadores/metabolismo , Biópsia , Estudos de Casos e Controles , Citocinas/análise , Diagnóstico Diferencial , Feminino , Fibrose , Perfilação da Expressão Gênica , Voluntários Saudáveis , Humanos , Hipertrofia/sangue , Hipertrofia/diagnóstico , Hipertrofia/genética , Hipertrofia/patologia , Lipedema/sangue , Lipedema/metabolismo , Lipedema/patologia , Metabolismo dos Lipídeos/genética , Lipídeos/análise , Linfedema/sangue , Linfedema/diagnóstico , Linfedema/metabolismo , Linfedema/patologia , Macrófagos/metabolismo , Obesidade/sangue , Obesidade/diagnóstico , Obesidade/metabolismo , Obesidade/patologia , Pele/patologia
4.
Microsurgery ; 39(3): 255-258, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29974499

RESUMO

Thoracic duct injury can be a devastating injury with disruption of lymphatic flow leading to potentially chylothorax and/or severe lymphedema. Standard treatment modalities include thoracic duct ligation or embolization for chylothorax, but treatment options to date are few for resultant lymphedema. In this case report, we describe lymphaticovenous bypass of the thoracic duct to the jugular venous system in a 21-year-old male with secondary lymphedema after iatrogenic thoracic duct injury. The patient experienced improvement of lymphedema symptoms including decreased weight and limb girth as well as normalization of serum markers indicating improved lymphatic delivery to the venous system. Lymphangiogram at 3 months post op demonstrated patency of the lymphaticovenous anastomoses. At 6-month follow-up, the patient had returned to his preoperative level of activity and showed continued improvement of his lymphedema symptoms. Lymphovenous bypass of the thoracic duct may be an effective technique to treat secondary lymphedema from thoracic duct obstruction, though further studies are required to determine long-term efficacy.


Assuntos
Anastomose Cirúrgica/métodos , Veias Jugulares/cirurgia , Linfedema/etiologia , Ducto Torácico/lesões , Ducto Torácico/cirurgia , Adulto , Quilotórax/etiologia , Extremidades/fisiopatologia , Seguimentos , Humanos , Imunoglobulina G/sangue , Unidades de Terapia Intensiva , Linfedema/sangue , Linfografia , Masculino , Alta do Paciente , Qualidade de Vida , Ducto Torácico/diagnóstico por imagem , Resultado do Tratamento , Aumento de Peso , Adulto Jovem
5.
Trop Med Int Health ; 22(11): 1414-1427, 2017 11.
Artigo em Inglês | MEDLINE | ID: mdl-28869696

RESUMO

OBJECTIVE: The underlying problem in lymphatic filariasis is irreversible swelling of the limbs (lymphoedema), which is a unique feature of lymphatic insufficiency. It is still unclear whether the natural ability of lymphatics to form functional lymphatic vasculature is achieved or attenuated in the lymphoedemal pathology. Clinical studies have clearly shown that circulating lymphatic progenitors (CLPs), a subset of bone marrow-derived mononuclear cells (PBMCs), contribute to post-natal lymph vasculogenesis. CLP-based revascularisation could be a promising strategy to bypass the endothelial disruption and damage incurred by the filarial parasites. Thus our aim was to compare and characterise the functional prowess of PBMCs in physiological and lymphoedemal pathology. METHODS: PBMCs were isolated from venous blood sample from drug-naive endemic normals (EN) and drug-deprived filarial lymphoedema (FL) individuals using density gradient centrifugation. Adhesion, transwell migration and in vitro matrigel assays were employed to characterise the lymphvasculogenic potential of PBMCs. CLPs were phenotypically characterised using flow cytometry; expression levels of lymphatic markers and inflammatory cytokines were quantified using qRT-PCR and ELISA, respectively. RESULTS: PBMCs from FL group display poor adherence to fibronectin (P = 0.040), reduced migration towards SDF-1α (P = 0.035), impaired tubular network (P = 0.004) and branching point (P = 0.048) formation. The PBMC mRNA expression of VEGFR3 (P = 0.039) and podoplanin (P = 0.050) was elevated, whereas integrin α9 (P = 0.046) was inhibited in FL individuals; additionally, the surface expression of CD34 (P = 0.048) was significantly reduced in the FL group compared to the EN group. CONCLUSION: PBMCs from filarial lymphoedema show defective and dysregulated lymphvasculogenic function compared to endemic normals.


Assuntos
Filariose Linfática/patologia , Leucócitos Mononucleares/fisiologia , Linfedema , Adulto , Idoso , Antígenos CD34/sangue , Movimento Celular , Quimiocina CXCL12/sangue , Filariose Linfática/sangue , Doenças Endêmicas , Feminino , Fibronectinas/sangue , Humanos , Índia , Cadeias alfa de Integrinas/sangue , Linfedema/sangue , Linfedema/etiologia , Masculino , Glicoproteínas de Membrana , Pessoa de Meia-Idade , RNA Mensageiro/metabolismo , Valores de Referência , Receptor 3 de Fatores de Crescimento do Endotélio Vascular/sangue
6.
Lymphat Res Biol ; 15(3): 246-251, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-28880710

RESUMO

BACKGROUND: Lymphedema of limbs affects a large mass of tissues. Pathological changes develop in skin and subcutaneous tissue. Bacterial retention in edema fluid is followed by chronic inflammatory reaction. The question arises whether the chronic processes affecting a large mass of limb tissues are reflected in the serum by appearance of specific proteins accumulating and subsequently absorbed from the lymphedematous tissues Aim: To measure the concentration of serum proteins (1) participating in cellular disintegration such as caspase 1, sFas, high-mobility group box 1 (HMGB1), and serpin, (2) cell growth regulating factors such as cortisol, human growth hormone, keratinocyte growth factor, and insulin-like growth factor (IGF), and (3) angiogenic and growth factors such as angiopoetins 1 and 2, adiponectin, leptin, and transforming growth factor beta. RESULTS: We found (1) increased concentration of serum caspase 1, sFas, serpin, and HMGB1 accounting for cellular destruction, (2) raised levels of cortisol and IGF, confirming active cellular processes, and (3) elevated concentrations of angiopoetin 1, adiponectin, and leptin, indicating proliferation of adipose tissue. CONCLUSIONS: Proteins appearing in serum in high concentrations in patients with lymphedema without systemic clinical and biochemical signs of inflammation indicate that multiple processes of destruction and rebuilding proceed in the lymphedematous tissues. Measuring concentration of caspase 1, sFas, serpin, HMGB1 protein, adiponectin, and leptin give insight into these processes. Lymphedema should be considered as tissue process characterized not only by increase in mobile tissue fluid volume but also tissue restructuring. Compression and drainage therapy should be complemented by anti-inflammatory medication.


Assuntos
Proteínas Sanguíneas , Celulite (Flegmão)/complicações , Extremidades/patologia , Fatores Imunológicos/sangue , Linfa , Linfedema/sangue , Linfedema/etiologia , Doença Aguda , Adulto , Biomarcadores , Extremidades/fisiopatologia , Feminino , Humanos , Mediadores da Inflamação/sangue , Mediadores da Inflamação/metabolismo , Linfedema/diagnóstico , Linfedema/fisiopatologia , Linfografia/métodos , Linfocintigrafia/métodos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
7.
Adv Exp Med Biol ; 906: 23-31, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-27638622

RESUMO

The diagnosis and management of an acute DVT is difficult and mistakes are often made. The cost to the National Health Service (NHS) of litigation arising from failure to diagnose and treat DVT early is substantial. Clinical diagnosis alone is often unreliable and a large proportion of DVT occurring in hospital are asymptomatic. In the United Kingdom, clinical scoring systems, D-dimer and ultrasound (US) imaging have all been adopted to aid diagnosis via DVT pathways. These pathways aim to exclude DVT only and often fail to actually address the cause of the symptoms once DVT is eventually cleared.


Assuntos
Edema/diagnóstico por imagem , Produtos de Degradação da Fibrina e do Fibrinogênio/metabolismo , Linfedema/diagnóstico por imagem , Insuficiência Venosa/diagnóstico por imagem , Trombose Venosa/diagnóstico por imagem , Anticoagulantes/uso terapêutico , Doenças Assintomáticas , Biomarcadores/sangue , Diagnóstico Diferencial , Edema/tratamento farmacológico , Edema/patologia , Humanos , Perna (Membro)/irrigação sanguínea , Perna (Membro)/diagnóstico por imagem , Perna (Membro)/patologia , Linfedema/sangue , Linfedema/patologia , Flebografia , Fatores de Risco , Túnica Íntima/diagnóstico por imagem , Túnica Íntima/patologia , Ultrassonografia Doppler Dupla , Reino Unido , Insuficiência Venosa/sangue , Insuficiência Venosa/patologia , Trombose Venosa/sangue , Trombose Venosa/patologia , Trombose Venosa/prevenção & controle
9.
BMJ Case Rep ; 20152015 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-26670888

RESUMO

A 77-year-old woman was admitted to hospital for 3 weeks to treat cellulitis and investigate unexplained anaemia. Earlier, when her neck had been examined on outpatient review of her lymphoedema, a large fungating tumour had been noted. This was biopsied and found to be a mixed basaloid adenocarcinoma. She was subsequently admitted under the plastic surgeons and treated with wide local excision on postero-lateral neck dissection. The defect was reconstructed with a deltopectoral flap.


Assuntos
Anemia/diagnóstico , Linfedema/sangue , Idoso , Anemia/etiologia , Biópsia , Carcinoma Basocelular/patologia , Carcinoma Basocelular/cirurgia , Celulite (Flegmão)/sangue , Celulite (Flegmão)/diagnóstico , Celulite (Flegmão)/tratamento farmacológico , Feminino , Seguimentos , Humanos , Linfedema/patologia , Linfedema/cirurgia , Imageamento por Ressonância Magnética , Pescoço/patologia , Pescoço/cirurgia , Resultado do Tratamento
10.
PLoS One ; 10(10): e0141047, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26492462

RESUMO

INTRODUCTION: Episodes of acute adenolymphangitis (ADL) are often the first clinical sign of lymphatic filariasis (LF). They are often accompanied by swelling of the affected limb, inflammation, fever, and general malaise and lead to the progression of lymphedema. Although ADL episodes have been studied for a century or more, questions still remain as to their etiology. We quantified antibody levels to pathogens that potentially contribute to ADL episodes during and after an episode among lymphedema patients in Léogâne, Haiti. We estimated the proportion of ADL episodes hypothesized to be attributed to specific pathogens. METHODS: We measured antibody levels to specific pathogens during and following an ADL episode among 41 lymphedema patients enrolled in a cohort study in Léogâne, Haiti. We calculated the absolute and relative changes in antibody levels between the ADL and convalescent time points. We calculated the proportion of episodes that demonstrated a two-fold increase in antibody level for several bacterial, fungal, and filarial pathogens. RESULTS: Our results showed the greatest proportion of two-fold changes in antibody levels for the carbohydrate antigen Streptococcus group A, followed by IgG2 responses to a soluble filarial antigen (BpG2), Streptococcal Pyrogenic Exotoxin B, and an antigen for the fungal pathogen Candida. When comparing the median antibody level during the ADL episode to the median antibody level at the convalescent time point, only the antigens for Pseudomonas species (P-value = 0.0351) and Streptolysin O (P-value = 0.0074) showed a significant result. CONCLUSION: Although our results are limited by the lack of a control group and few antibody responses, they provide some evidence for infection with Streptococcus A as a potential contributing factor to ADL episodes. Our results add to the current evidence and illustrate the importance of determining the causal role of bacterial and fungal pathogens and immunological antifilarial response in ADL episodes.


Assuntos
Anticorpos Antibacterianos/sangue , Anticorpos Antifúngicos/sangue , Anticorpos Antiprotozoários/sangue , Linfangite/etiologia , Streptococcus pyogenes/imunologia , Adulto , Animais , Anticorpos Antibacterianos/imunologia , Anticorpos Antifúngicos/imunologia , Anticorpos Antiprotozoários/imunologia , Estudos de Coortes , Filariose Linfática/etiologia , Feminino , Haiti , Humanos , Linfangite/sangue , Linfangite/imunologia , Linfedema/sangue , Linfedema/imunologia , Masculino , Wuchereria bancrofti/imunologia
12.
Support Care Cancer ; 23(8): 2319-26, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25577503

RESUMO

PURPOSE: Lymphedema is an irreversible disorder often seen as a postoperative side effect in breast cancer survivors. We aimed to identify serum factors that are associated with lymphedema risk in breast cancer survivors. METHODS: This study recruited 60 volunteer breast cancer survivors. Participants were classified into either a CTRL group who underwent sentinel lymph node biopsy (SLNB), a RISK group who underwent axillary lymph node dissection (ALND) with removal of fewer than five lymph nodes, or an LE group who underwent ALND with removal of more than five lymph nodes. Bioimpedance was measured to determine the ratio of extracellular water (ECW) to total cellular water (TCW) and single-frequency bioimpedance analysis (SFBIA) ratios. Serum lipid profiles were compared among the groups using label-free quantitative proteomics with the nano-liquid chromatography (LC)-tandem mass spectrometer (MS/MS) and emPAI method. RESULTS: The CTRL, RISK, and LE groups had similar body weights and body mass indexes (BMIs) (<25 kg/m(2)). The LE group showed a higher grade of lymphedema severity compared to the RISK and CTRL groups. Lymphedema indices such as the ECW/TCW ratio and SFBIA ratio at 1 and 5 kHz were greatly increased in the LE group. Serum total cholesterol (total-C) level was higher in the LE group without affecting atherogenic index. Serum proteomics revealed that fibronectin 1 (FN1), apolipoprotein E (ApoE), antithrombin (ANT3), and complement C4 had different abundance values among the groups. ELISA confirmed that FN1 and ApoE were significantly elevated in both the RISK and LE groups compared to the CTRL group. CONCLUSIONS: Changes in serum FN1 and ApoE levels were detected prior to changes in serum total-C level and lymphedema indices such as SFBIA ratio. Therefore, elevation in serum FN1 and ApoE concentrations could likely be used to monitor the risk of lymphedema in breast cancer survivors.


Assuntos
Apolipoproteínas E/sangue , Neoplasias da Mama/sangue , Fibronectinas/sangue , Linfedema/sangue , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Feminino , Humanos , Excisão de Linfonodo/efeitos adversos , Linfonodos/patologia , Linfonodos/cirurgia , Linfedema/patologia , Pessoa de Meia-Idade , Biópsia de Linfonodo Sentinela , Sobreviventes
13.
J Endocrinol Invest ; 38(4): 399-406, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25344824

RESUMO

CONTEXT: Noonan syndrome (NS) is characterized by short stature and elevated risk of lymphedema. The mechanism underlying lymphedema may be mediated by vascular endothelial growth factors (VEGFs). OBJECTIVE: To assess the effect of growth hormone (GH) treatment on plasma insulin-like growth factor (IGF)-1, VEGF-A and VEGF-C levels in patients with NS as compared to short GH-sufficient children. DESIGN: Retrospective, comparative. SETTING: Endocrinology department of a tertiary pediatric medical center. PATIENTS AND METHODS: Plasma IGF-1, VEGF-A and VEGF-C levels were measured before and during GH treatment in 6 patients with NS and 18 age-matched short subjects (Turner, idiopathic short stature and small for gestational age). MAIN OUTCOME MEASURES: Changes in plasma VEGF and IGF-1 levels. RESULTS: Baseline IGF-1 SDS levels were slightly lower in NS patients compared with controls; IGF-1 response to GH therapy was markedly lower in NS patients compared with controls (p = 0.017). Mean baseline VEGF-A levels were similar in NS patients and controls whilst mean baseline VEGF-C levels were significantly lower in the NS group as compared with controls (p = 0.022). Plasma VEGF-A and VEGF-C levels did not significantly change during GH treatment in the study cohort. No correlation was found between VEGF-C levels and levels of IGF-1, VEGF-A and auxological parameters, either before or during GH administration. CONCLUSION: Children with NS have a distinct growth factor profile including low basal VEGF-C and flattened IGF-1 response to GH. Further studies are needed to confirm our findings and to elucidate the interaction between VEGF-C levels and lymphedema.


Assuntos
Hormônio do Crescimento Humano/farmacologia , Fator de Crescimento Insulin-Like I/análise , Linfedema/sangue , Síndrome de Noonan/sangue , Fator A de Crescimento do Endotélio Vascular/sangue , Fator C de Crescimento do Endotélio Vascular/sangue , Adolescente , Criança , Pré-Escolar , Hormônio do Crescimento Humano/administração & dosagem , Humanos , Linfedema/tratamento farmacológico , Masculino , Síndrome de Noonan/tratamento farmacológico , Estudos Retrospectivos , Resultado do Tratamento
14.
Vet Immunol Immunopathol ; 163(1-2): 16-22, 2015 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-25500056

RESUMO

Diagnosis of chronic progressive lymphoedema (CPL) in draught horses, including the Belgian Draught Horse, is mainly based on clinical evaluation of typical lower limb lesions. A deficient perilymphatic elastic support, caused by a pathological elastin degradation in skin and subcutis, has been suggested as a contributing factor for CPL. Elastin degradation products induce the generation of anti-elastin Ab (AEAb), detectable in horse serum by ELISA. For a clinically healthy group of draught horses, a significantly lower average AEAb-level than 3 clinically affected groups (mild, moderate and severe symptoms) was demonstrated previously. To improve CPL-diagnosis, we evaluated the AEAb-ELISA as an in vitro diagnostic aid in individual horses. Test reproducibility was assessed, performing assays independently in 2 laboratories on a total of 345 horses. Possible factors associated with AEAb-levels (age, gender, pregnancy, test lab and date of blood collection) were analyzed using a mixed statistical model. Results were reproducible in both laboratories. AEAb-levels in moderately and severely affected horses were significantly higher than in healthy horses. Nevertheless, this was only demonstrated in barren mares, and, there was a very large overlap between the clinical groups. Consequently, even when a high AEAb cut-off was handled to obtain a reasonable specificity of 90%, a very low sensitivity (21%) of AEAb for CPL-diagnosis was obtained. Results on the present sample demonstrate that the described ELISA procedure is of no use as a diagnostic test for CPL in individual horses.


Assuntos
Anticorpos/imunologia , Elastina/imunologia , Doenças dos Cavalos/diagnóstico , Linfedema/veterinária , Fatores Etários , Animais , Anticorpos/sangue , Ensaio de Imunoadsorção Enzimática/veterinária , Feminino , Doenças dos Cavalos/sangue , Doenças dos Cavalos/imunologia , Cavalos/sangue , Cavalos/imunologia , Linfedema/sangue , Linfedema/diagnóstico , Linfedema/imunologia , Masculino , Gravidez , Reprodutibilidade dos Testes , Sensibilidade e Especificidade
15.
Hemodial Int ; 18(3): 705-8, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24467313

RESUMO

Prosthetic arteriovenous grafts (AVGs) are associated with greater morbidity than autogenous arteriovenous fistulas (AVFs), but their use is indicated when AVF formation is not possible. This report adds to the literature a case of lower limb gigantism, painful varicosities, and lymphedema following long-term use of AVG in the upper thigh. The patient's past medical history included renal transplantation on the same side well before the AVG was inserted and right leg deep vein thrombosis. Suspicion of AVG thrombosis was excluded by Doppler ultrasound, which demonstrated an access flow of 1700 mL/min. A computed tomography (CT) scan of the abdomen and pelvis did not identify the cause of her symptoms. Whereas functional incompetence of the iliac vein valve might be responsible for the varicosities, the extent of hypertrophy in this case raises the suspicion of lymphatic blockage possibly secondary to groin dissection undertaken at the time of graft insertion, in addition to the previous dissection at the time of transplantation. This case highlights the need for minimal groin dissection during AVG insertion, particularly in patients with a history of previous abdominopelvic surgery.


Assuntos
Derivação Arteriovenosa Cirúrgica/efeitos adversos , Gigantismo/etiologia , Perna (Membro)/irrigação sanguínea , Linfedema/etiologia , Varizes/etiologia , Derivação Arteriovenosa Cirúrgica/métodos , Feminino , Humanos , Linfedema/sangue , Linfedema/patologia , Pessoa de Meia-Idade , Resultado do Tratamento
17.
Clin Infect Dis ; 55(5): 621-30, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22610930

RESUMO

BACKGROUND: The aim of this study was to determine whether improvement of filarial lymphedema (LE) by doxycycline is restricted to patients with ongoing infection (positive for circulating filarial antigen [CFA]), or whether the majority of CFA-negative patients with LE would also show a reduction in LE severity. METHODS: One hundred sixty-two Ghanaian participants with LE stage 1-5 (Dreyer) were randomized blockwise into 2 groups (CFA positive or negative) and allocated to 3 treatment arms of 6 weeks: (1) amoxicillin (1000 mg/d), (2) doxycycline (200 mg/d), or (3) placebo matching doxycycline. All groups received standard hygiene morbidity management. The primary outcome was reduction of LE stages. Secondary outcomes included frequency of acute attacks and ultrasonographic assessment of skin thickness at the ankles. Parameters were assessed before treatment and after 3, 12, and 24 months. RESULTS: Doxycycline-treated patients with LE stage 2-3 showed significant reductions in LE severity after 12 and 24 months, regardless of CFA status. Improvement was observed in 43.9% of doxycycline-treated patients, compared with only 3.2% and 5.6% in the amoxicillin and placebo arms, respectively. Skin thickness was correlated with LE stage improvement. Both doxycycline and amoxicillin were able to reduce acute dermatolymphangioadenitis attacks. CONCLUSIONS: Doxycycline treatment improves mild to moderate LE independent of ongoing infection. This finding expands the benefits of doxycycline to the entire population of patients suffering from LE. Patients with LE stage 1-3 should benefit from a 6-week course of doxycycline every other year or yearly, which should be considered as an improved tool to manage morbidity in filarial LE. Clinical Trials Registration. ISRCTN 90861344.


Assuntos
Doxiciclina/uso terapêutico , Filariose/tratamento farmacológico , Filaricidas/uso terapêutico , Linfedema/tratamento farmacológico , Adolescente , Adulto , Amoxicilina/uso terapêutico , Tornozelo/diagnóstico por imagem , Tornozelo/patologia , Feminino , Filariose/sangue , Filariose/patologia , Gana , Humanos , Estimativa de Kaplan-Meier , Perna (Membro)/patologia , Linfedema/sangue , Linfedema/parasitologia , Linfedema/patologia , Masculino , Pessoa de Meia-Idade , Pele/diagnóstico por imagem , Pele/patologia , Estatísticas não Paramétricas , Ultrassonografia , Receptor 3 de Fatores de Crescimento do Endotélio Vascular/sangue
18.
J Radiat Res ; 53(1): 125-9, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22302053

RESUMO

Thrombosis-related edema and lymphedema are two principal types of lower extremity edema results from radiotherapy alone or chemoradiotherapy for patients with cervical cancer. To characterize differences between them, a retrospective study was performed. We collected data including age, race, body weight, FIGO stage, histology type, platelet count, haemoglobin, time of definitely diagnosis, therapeutic regimen, edema type and which leg edema firstly occurred in. Of 40 patients who were eligible for this study, 32 were diagnosed as thrombosis-related edema and 8 diagnosed as lymphedema. The differences in patient age (p = 0.004), propotion of race (p = 0.021), the latent time (p = 0.002) and the mean platelet count (p = 0.019) were statistically significant. Among 32 patients with thrombosis-related edema, 34.4% were in stage II and 53.1% in stage III, 78.1% were squamous cell carcinoma. Among 8 patients with lymphedema, 87.5% were in stage II and 62.5% were squamous cell carcinoma. The differences were not statistically significant for weight (p = 0.94), histology type (p = 0.648), edema site (p = 0.236), haemoglobin (p = 0.088) between the two grouping patients. Although the small patient cohort is a limitation, the results suggest that the patients with thrombosis-related edema may have higher proportion, lower age, shorter latent edema time and more platelet count than those with lymphedema. Also, thrombosis-related edema was likely inclined to Uigur and lymphedema to Han race. We did not find statistical differences in weight, edema site, histology type and haemoglobin between patients with thrombosis-related edema and lymphedema.


Assuntos
Braquiterapia/efeitos adversos , Carcinoma de Células Escamosas/complicações , Quimiorradioterapia/efeitos adversos , Edema/etiologia , Linfedema/etiologia , Radioterapia de Alta Energia/efeitos adversos , Trombose/complicações , Neoplasias do Colo do Útero/complicações , Adenocarcinoma/sangue , Adenocarcinoma/complicações , Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/radioterapia , Adulto , Idoso , Antineoplásicos Alquilantes/administração & dosagem , Antineoplásicos Alquilantes/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Bleomicina/administração & dosagem , Carcinoma de Células Escamosas/sangue , Carcinoma de Células Escamosas/tratamento farmacológico , Carcinoma de Células Escamosas/radioterapia , China/epidemiologia , Cisplatino/administração & dosagem , Cisplatino/uso terapêutico , Edema/sangue , Edema/etnologia , Etnicidade/estatística & dados numéricos , Feminino , Fluoruracila/administração & dosagem , Hemoglobinas/análise , Humanos , Ifosfamida/administração & dosagem , Perna (Membro) , Linfedema/sangue , Linfedema/etnologia , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Contagem de Plaquetas , Estudos Retrospectivos , Trombofilia/sangue , Trombofilia/etiologia , Trombose/etnologia , Trombose/etiologia , Neoplasias do Colo do Útero/sangue , Neoplasias do Colo do Útero/tratamento farmacológico , Neoplasias do Colo do Útero/radioterapia , Vincristina/administração & dosagem
19.
Lymphology ; 44(1): 29-34, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21667820

RESUMO

Lymphedema often responds to compression therapy which can also cause undesirable cardiac overload if heart failure coexists. We hypothesized that the biomarker B-type natriuretic peptide (BNP) can be used to screen lymphedema patients for undetected cardiac dysfunction. We studied unselected consecutive patients with lymphedema to determine their BNP status and compared these data with those obtained from healthy subjects without known cardiovascular diseases. Out of a total of 305 subjects with lymphedema screened, 102 (33%) consented to take part in this study. The majority (87%) were female with a mean age of 60.5 +/- 13.2 (SD) years, and 47% had just lower limb swelling. The groups were equally divided between cancer and non-cancer related causes. There were 45 females and 4 males under 60 years old, and 44 female and 9 male patients over 60 years old. Median (IQR) BNP (ng/L) were as follows: <60 years females = 17.9 (15.2) (median [RR: 3 - 64] and males = 12.4 (14.7) [RR: 0.2 - 44], >60 years females = 35.8 (57.9) [RR: 2 -247)] and males = 47.2 (44.1) [RR: 2 - 238]. For this population, the BNP concentration 100 ng/L was adopted as the value to exclude heart failure. Using this definition, 7 lymphedema subjects had BNP concentrations of 120 (19.8) ng/L, and all were found to have cardiac abnormalities on echocardiography. This study demonstrated that 93% of unselected subjects with lymphedema had BNP concentrations that exclude a diagnosis of heart failure. Those subjects with elevated BNP were found on subsequent echocardiography to have cardiac abnormalities. The use of a BNP assay is of potential value in screening patients who are more likely to have cardiac failure. Indicative factors include bilateral leg swelling, over the age of 50 years, breathlessness, where there is no known cause for the swelling. A BNP assay using a BNP concentration threshold of 100 ng/L (29 pmol/L) will identify those patients who require more detailed investigations.


Assuntos
Biomarcadores/sangue , Insuficiência Cardíaca/sangue , Insuficiência Cardíaca/diagnóstico , Linfedema/sangue , Peptídeo Natriurético Encefálico/sangue , Adulto , Feminino , Insuficiência Cardíaca/etiologia , Humanos , Linfedema/complicações , Masculino , Pessoa de Meia-Idade
20.
J Pediatr Gastroenterol Nutr ; 51(4): 454-7, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-20512058

RESUMO

OBJECTIVE: Octreotide has been suggested as a medical treatment option in refractory cases of primary intestinal lymphangiectasia (IL). There are few data about the long-term effect and safety of octreotide for IL in the literature. In the present article we analyzed pediatric cases of primary IL with long-term octreotide treatment and discussed its safety profile. METHODS: Between 1999 and 2008, 13 children were diagnosed in our clinic as having IL. Six patients with primary IL were followed up, receiving octreotide therapy. The clinical data of the patients and duration of therapy, dose, and side effects of octreotide were evaluated. RESULTS: Octreotide, 15 to 20 µg per body weight 2 times daily subcutaneously, was given to all of the patients. Duration of the octreotide treatment changed between 3 and 37 months. Stool frequency decreased in all of the patients after starting octreotide treatment. Serum albumin could be maintained at normal levels in 3 patients. The requirement of albumin infusions decreased in all of the patients. Acute pancreatitis was observed as a side effect of octreotide in 1 patient. CONCLUSIONS: Octreotide may help to maintain serum albumin levels, improve clinical findings, and decrease the requirement of albumin infusions in refractory cases of primary IL.


Assuntos
Fármacos Gastrointestinais/uso terapêutico , Octreotida/uso terapêutico , Pré-Escolar , Feminino , Fármacos Gastrointestinais/efeitos adversos , Fármacos Gastrointestinais/sangue , Humanos , Lactente , Linfangiectasia Intestinal/sangue , Linfangiectasia Intestinal/tratamento farmacológico , Linfedema/sangue , Linfedema/tratamento farmacológico , Masculino , Octreotida/efeitos adversos , Octreotida/sangue , Pancreatite/induzido quimicamente , Albumina Sérica/efeitos dos fármacos , Resultado do Tratamento
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