RESUMO
The importance of the immunomodulatory effects of vitamin D has recently been associated with autoimmune and chronic inflammatory diseases. Vitamin D deficiency has been linked to the development of autoimmune conditions. Antiphospholipid syndrome is an autoimmune disease characterized by thrombotic events and obstetric complications in patients with antiphospholipid antibodies. Current data show that patients with antiphospholipid syndrome have a high prevalence of vitamin D deficiency even without classic risk factors. Several studies have suggested vitamin D may have anti-thrombotic functions. In antiphospholipid syndrome, low vitamin D serum levels have been associated with thrombotic manifestations, suggesting a possible protective role of vitamin D in antiphospholipid syndrome. This literature review presents current evidence on the haemostatic functions of vitamin D and their possible relationship with the clinical manifestations of antiphospholipid syndrome.
Assuntos
Síndrome Antifosfolipídica/complicações , Deficiência de Vitamina D/complicações , Vitamina D/metabolismo , Anticorpos Antifosfolipídeos/sangue , Anticoagulantes/uso terapêutico , Feminino , Humanos , Gravidez , Complicações Hematológicas na Gravidez/etiologia , Trombose/tratamento farmacológico , Trombose/etiologia , Deficiência de Vitamina D/tratamento farmacológicoRESUMO
Objective (a) to assess the prevalence of functional gastrointestinal disorders (FGIDs) in female Mexican systemic lupus erythematosus (SLE) patients using the Rome III criteria and (b) to examine the effect of disease duration on FGID prevalence. Methods Female SLE outpatients aged ≥18 years with no organic gastrointestinal disorder were included. Participants were invited to upper gastrointestinal endoscopy screening and a faecal immunochemical test. FGID symptoms were evaluated using the Rome III questionnaire. Results Eighty-six SLE patients with median age of 45 (interquartile range 34-54) years were included. At least one FGID was found in 76.7% (66/88) of patients with SLE. The most prevalent domains of FGID diagnosed were functional oesophageal, gastroduodenal disorders and bowel disorders, of which functional dyspepsia (72.7%), functional heartburn (68.1%) and bloating (63.8%) were the most frequent. Fifty-nine per cent of patients had overlapping FGIDs. The most prevalent overlap was the combination of functional dyspepsia and functional heartburn. Patients with longer disease duration had a higher prevalence of FGID than those with shorter disease duration. Conclusions There was a high prevalence of FGIDs in Mexican SLE women with low disease activity. Overlapping FGIDs were frequent. Longer disease duration may be associated with FGIDs in SLE patients.
Assuntos
Gastroenteropatias/epidemiologia , Lúpus Eritematoso Sistêmico/epidemiologia , Adolescente , Adulto , Estudos Transversais , Dispepsia/diagnóstico , Dispepsia/epidemiologia , Endoscopia Gastrointestinal , Fezes/química , Feminino , Gastroenteropatias/diagnóstico , Azia/diagnóstico , Azia/epidemiologia , Humanos , Imuno-Histoquímica , Lúpus Eritematoso Sistêmico/diagnóstico , México/epidemiologia , Pessoa de Meia-Idade , Prevalência , Inquéritos e Questionários , Fatores de Tempo , Adulto JovemRESUMO
We studied the epidemiologic triad-related factors influencing human papilloma virus (HPV) persistence in Mexican women with systemic lupus erythematosus (SLE). Patients aged ≥18 years with SLE (American College of Rheumatology criteria), with and without HPV persistence, were selected. Groups were analyzed by (1) host: clinical disease characteristics; (2) agent: (I) infectious (prevalence, incidence, HPV genotype and co-infections (≥2 HPV genotypes or mycoplasmas)), (II) chemical (contraceptives and immunosuppressive drugs) and (III) physical (vitamin D deficiency) and (3) environment. A total of 121 SLE patients were selected over a two-year period. (1) Host: mean age 45.8 years and disease duration 12.7 years. (2) Agent: (I) infectious. HPV infection prevalence in the second sample was 26.4%, high-risk HPV genotypes 21.5% and co-infections 7.4%. HPV infection incidence was 13.2%, persistence 13.2% and clearance 15.7%. (II) Chemical: use of oral hormonal contraceptives 5% and immunosuppressive treatment 97.5%. (III) Physical: Vitamin D levels were similar in both groups. (3) Environment: (I) natural. A total of 60.6% of patients were residents of Puebla City. (II) Social: The mean education level was 10.9. Poverty levels were: III degree 52.4%, IV degree 28% and II degree 17%. (III) Cultural behavioral: Onset of sexual life was 20.5 years, 10% had ≥3 sexual partners and 51.2% were postmenopausal. In conclusion, no factor of the epidemiologic triad was associated with HPV infection prevalence.
Assuntos
Lúpus Eritematoso Sistêmico/complicações , Lúpus Eritematoso Sistêmico/epidemiologia , Infecções por Papillomavirus/epidemiologia , Adulto , Idoso , Estudos de Coortes , Meio Ambiente , Feminino , Humanos , México/epidemiologia , Pessoa de Meia-Idade , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/virologia , Adulto JovemRESUMO
Objectives Our objective was to study the incidence, persistence and clearance of human papillomavirus infection in systemic lupus erythematosus women and assess risk factors for persistence of human papillomavirus infection. Methods We carried out a prospective, observational cohort study of 127 systemic lupus erythematosus women. Patients were evaluated at baseline and at three years. Traditional and systemic lupus erythematosus women-related disease risk factors were collected. Gynaecological evaluations and cervical cytology screening were made. Human papillomavirus detection and genotyping were made by polymerase chain reaction and linear array. Results The cumulative prevalence of human papillomavirus infection increased from 22.8% at baseline to 33.8% at three years; p = < 0.001: 20.1% of patients experienced 43 incident infections. The risk of any human papillomavirus infection was 10.1 per 1000 patient-months. At three years, 47 (88.6%) prevalent infections were cleared. Independent risk factors associated with incident human papillomavirus infection included more lifetime sexual partners (odds ratio = 1.8, 95% confidence interval = 1.11-3.0) and cumulative cyclophosphamide dose (odds ratio = 3.9, 95% confidence interval = 1.2-12.8). Conclusions In systemic lupus erythematosus women, the cumulative prevalence of human papillomavirus infection, including high risk-human papillomavirus and multiple human papillomavirus infections, may increase over time. Most persistent infections were low risk-human papillomavirus. The number of lifetime sexual partners and the cumulative cyclophosphamide dose were independently associated with incident human papillomavirus infection.
Assuntos
Lúpus Eritematoso Sistêmico/complicações , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/epidemiologia , Neoplasias do Colo do Útero/virologia , Adulto , Ciclofosfamida/efeitos adversos , Feminino , Genótipo , Humanos , Imunossupressores/efeitos adversos , Incidência , Lúpus Eritematoso Sistêmico/epidemiologia , Lúpus Eritematoso Sistêmico/mortalidade , Lúpus Eritematoso Sistêmico/virologia , México/epidemiologia , Pessoa de Meia-Idade , Papillomaviridae/genética , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/virologia , Prevalência , Prognóstico , Estudos Prospectivos , Fatores de Risco , Parceiros Sexuais , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/patologia , Esfregaço Vaginal/métodosRESUMO
The objective of this cross-sectional study was to determine relationships between socioeconomic status and organ damage in Mexican systemic lupus erythematosus (SLE) patients. Demographic and clinical variables were assessed. Socioeconomic status was evaluated using the Graffar method and monthly household income. Lupus activity and organ damage were measured using the SLE disease activity scale, validated for the Mexican population (Mex-SLEDAI), and the Systemic Lupus International Collaborating Clinics/American College of Rheumatology (SLICC/ACR) scale. The 143 Mexican female SLE patients included (mean age 40.1 ± 8.9 years, mean disease duration 8.9 ± 6.3 years) had a mean monthly household income of $ 407.2 ± 326.5. According to the Graffar index, 18.9%, 52.5%, and 28.7% had high/medium-high, medium, and medium-low/low socioeconomic status, respectively. Organ damage was observed in 61 patients (42.7%). Patients with organ damage had lower monthly household incomes ($241.4 ± 152.4 vs. $354.8 ± 288.3) and were more frequently unemployed (57.3% vs. 35.3%; p = 0.01) than those without. Low monthly income was not associated with lupus activity or self-reported health status. In the adjusted multivariate analysis, low monthly income ( < $300) was associated with organ damage. In conclusion, low income may be associated with organ damage in Mexican SLE patients.
Assuntos
Lúpus Eritematoso Discoide/economia , Lúpus Eritematoso Discoide/patologia , Lúpus Eritematoso Sistêmico/economia , Lúpus Eritematoso Sistêmico/patologia , Insuficiência de Múltiplos Órgãos/economia , Insuficiência de Múltiplos Órgãos/patologia , Adulto , Estudos Transversais , Feminino , Nível de Saúde , Humanos , México , Pessoa de Meia-Idade , Análise Multivariada , Índice de Gravidade de Doença , Classe Social , Saúde da MulherRESUMO
Our objective was to evaluate whether vitamin D deficiency is associated with cervical human papilloma virus (HPV) infection in women with SLE. This is a cross-sectional study of 67 women with SLE. A structured questionnaire was administered to ascertain the possible risk factors associated with cervical HPV infection. A gynaecological evaluation and cervical cytology screening were made. HPV detection and genotyping was made by PCR and linear array assay. Serum 25 hydroxyvitamin D levels were quantified by chemiluminescence immunoassay. Mean age and disease duration were 44.8 ± 10.6 and 42.5 ± 11.8 years, respectively. Demographic characteristics were similar in patients with and without deficiency (<20 ng/ml and ≥20 ng/ml). There were 28.4% of women with cervical HPV infection and 68.4% had high-risk HPV infections. Patients with 25 hydroxyvitamin D levels <20 ng/ml had a higher prevalence of cervical HPV infection than those with levels ≥20 ng/ml (30.7% vs. 25.8%; p = 0.72). We found no significant difference when high-risk HPV infection was evaluated (36.8% vs. 31.5%; p = 0.73). In conclusion, women with SLE have a high prevalence of vitamin D deficiency and cervical HPV infection. However, we found no association between vitamin D deficiency and cervical HPV.
Assuntos
Lúpus Eritematoso Sistêmico/sangue , Lúpus Eritematoso Sistêmico/virologia , Infecções por Papillomavirus/sangue , Doenças do Colo do Útero/sangue , Doenças do Colo do Útero/virologia , Vitamina D/análogos & derivados , Adulto , Estudos Transversais , Feminino , Genótipo , Humanos , Imunoensaio/métodos , Estudos Longitudinais , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase/métodos , Prevalência , Fatores de Risco , Neoplasias do Colo do Útero/sangue , Neoplasias do Colo do Útero/virologia , Esfregaço Vaginal/métodos , Vitamina D/sangue , Deficiência de Vitamina D/sangue , Deficiência de Vitamina D/virologia , Displasia do Colo do Útero/sangue , Displasia do Colo do Útero/virologiaRESUMO
BACKGROUND: Low bone mineral density (BMD) and vertebral fractures (VF) have been associated with atherosclerosis in the general population. We sought to investigate the relationship between BMD and VF and carotid atherosclerosis in women with systemic lupus erythematosus (SLE). METHODS: We studied 122 women with SLE. All patients had BMD, carotid intima-media thickness (IMT), and carotid artery atherosclerotic plaque assessment by ultrasound. RESULTS: Mean age at study entry was 44 years and mean disease duration was 11 years. Carotid plaque was found in 13 (11%) patients (9 postmenopausal and 4 premenopausal). Patients in the highest IMT quartile were more likely to be older (p = 0.001), have a higher body mass index (p = 0.008), and exhibit dyslipidemia at study entry (p = 0.041), compared with the lower three quartiles. BMD at the lumbar spine was lower in patients in the highest IMT quartile compared with the lower quartiles in the multivariate logistic analysis, however, there was no association between lumbar or total hip BMD and IMT (p = 0.91 and p = 0.6, respectively). IMT measurements did not differ according to the presence or absence of VF (0.08 ± 0.12 vs. 0.06 ± 0.03 mm, p = 0.11). A trend towards higher incidence of VF was found in patients with carotid plaque compared with those without (33% vs. 21%; p = 0.2). CONCLUSIONS: In patients with SLE, the presence of carotid atherosclerosis is not associated with low BMD or VF.
Assuntos
Densidade Óssea , Doenças das Artérias Carótidas/epidemiologia , Vértebras Lombares/lesões , Lúpus Eritematoso Sistêmico/epidemiologia , Osteoporose/epidemiologia , Fraturas da Coluna Vertebral/epidemiologia , Vértebras Torácicas/lesões , Acetábulo/fisiopatologia , Adulto , Índice de Massa Corporal , Doenças das Artérias Carótidas/diagnóstico por imagem , Espessura Intima-Media Carotídea , Estudos Transversais , Dislipidemias/epidemiologia , Feminino , Cabeça do Fêmur/fisiopatologia , Humanos , Vértebras Lombares/fisiopatologia , Pessoa de Meia-Idade , Pós-Menopausa , Pré-Menopausa , Radiografia , Fatores de Risco , Fraturas da Coluna Vertebral/diagnóstico por imagemRESUMO
Five patients with active disseminated vitiligo were given 1g of a chimeric (murine/human) monoclonal antibody to CD20 in a single intravenous infusion and followed-up for 6 months. Three of the patients showed an overt clinical and histological improvement of the disease, one presented slight improvement and the remaining patient showed no changes. Improvement was neither associated with changes in laboratory parameters nor to a specific human leucocyte antigen D-related (HLA-DR) phenotype. We believe that these preliminary results are encouraging, and further clinical trials should be undertaken. An important aim should be the finding of a marker with a good response to this therapeutic approach.
Assuntos
Anticorpos Monoclonais/uso terapêutico , Antígenos CD20/imunologia , Vitiligo/terapia , Animais , Anticorpos Monoclonais/administração & dosagem , Biomarcadores Farmacológicos/sangue , Progressão da Doença , Seguimentos , Antígenos HLA-DR/metabolismo , Humanos , Infusões Intravenosas , Camundongos , Projetos Piloto , Proteínas Recombinantes de Fusão/administração & dosagem , Proteínas Recombinantes de Fusão/uso terapêutico , Equilíbrio Th1-Th2 , Resultado do TratamentoRESUMO
The objective of this study was to assess the effects of rituximab on bone mineral density (BMD) in women with systemic lupus erythematosus (SLE) 1 year after treatment. Thirty active female SLE patients treated with rituximab were compared with 43 SLE women not treated with rituximab. BMD was measured using dual energy X-ray absorptiometry (DEXA) before initiating biologic therapy and after 1 year. The mean age was 38.5 ± 2.1 years; median disease duration was 7 years. In the rituximab group, after 1 year of follow-up, BMD at the femoral neck (FN) decreased from 0.980 ± 0.130 g/cm(2) to 0.809 ± 0.139 g/cm(2) (-17.4%; p=0.001). Similarly, BMD at the lumbar spine (LS) decreased from 1.062 ± 0.137 g/cm(2) to 0.893 ± 0.194 g/cm(2) (-15.8%; p=0.001). In control subjects, BMD at the FN decreased from 0.914 ± 0.193 g/cm(2) to 0.890 ± 0.135 g/cm(2) (-2.6%; p=0.001), and BMD at the LS decreased from 0.926 ± 0.128 g/cm(2) to 0.867 ± 0.139 g/cm(2) (-6.2%; p=0.09). After 1 year, SLE patients had lower BMD at both the FN and LS, but the loss was greater in postmenopausal patients who had received rituximab therapy.
Assuntos
Anticorpos Monoclonais Murinos/uso terapêutico , Densidade Óssea/efeitos dos fármacos , Lúpus Eritematoso Sistêmico/tratamento farmacológico , Adulto , Anticorpos Monoclonais Murinos/farmacologia , Linfócitos B/fisiologia , Feminino , Glucocorticoides/farmacologia , Humanos , Lúpus Eritematoso Sistêmico/metabolismo , Estudos Prospectivos , Rituximab , Fatores de TempoRESUMO
The LupusQoL© questionnaire is a disease-specific health related quality of life (HRQOL) instrument for adults with systemic lupus erythematosus (SLE). The Short Form-36 (SF-36) is a generic instrument that captures the physical, psychological, and social impact. We conducted a descriptive study of women aged ≥ 18 years attending our Lupus Clinic. HRQOL was assessed by applying the LupusQoL© and SF-36. Lupus activity was measured using the Mexican Systemic Lupus Erythematosus Disease Activity Index (Mex-SLEDAI) and chronic damage using the Systemic Lupus Collaborative Clinics Damage Index (SDI). Data were analyzed using descriptive statistics, the chi-square test and Pearson's product moment correlation coefficient. A total of 127 patients were included with a mean age of 40.5 ± 12.6 years. The mean disease duration was 8.2 ± 5.6 years, the mean disease activity score was 2.4 ± 3.0, and the mean SDI score 0.77 ± 1.06. The mean SF-36 score was 58.1 ± 21.1 and the mean LupusQoL© score was 69 ± 22.7. The correlation between global scores of the SF-36 and LupusQoL© was rho = 0.73 (p < 0.001). The correlation between lupus disease activity and the SF-36 and the LupusQoL© was -0.26 (p = 0.003) and -0.25 (p = 0.004), respectively. The correlation between the SDI and the SF-36 and the LupusQoL© was -0.28 (p = 0.001) and -0.38 (p < 0.0001), respectively. In conclusions: both LupusQoL© and SF-36 were useful instruments in assessing HRQOL in Mexican lupus female patients. The usefulness of the LupusQoL© should be evaluated in lupus patients with moderate to severe disease activity.
Assuntos
Lúpus Eritematoso Sistêmico/fisiopatologia , Qualidade de Vida , Inquéritos e Questionários , Adulto , Distribuição de Qui-Quadrado , Estudos Transversais , Interpretação Estatística de Dados , Feminino , Humanos , Pessoa de Meia-Idade , Índice de Gravidade de DoençaRESUMO
The objective of this study was to investigate the efficacy and safety of anti-CD20 treatment in Hispanic patients with refractory systemic lupus erythematosus and to determine whether baseline parameters predict disease flare. Fifty-two patients with systemic lupus erythematosus, 13 with active lupus nephritis, eight with thrombocytopenia, three with leukocytopenia, 25 with severe musculoskeletal involvement and three with skin involvement) refractory to conventional therapy were treated with anti-CD20 treatment (rituximab; MabThera, Roche) plus ongoing immunosuppressive treatment. Disease activity was assessed monthly using the SLEDAI validated for the Mexican population with a follow-up period of 6 months. At 6 months of follow-up, significant clinical improvements were detected, with a reduction in the global SLEDAI validated for the Mexican population score. Five of the 13 patients with lupus nephritis (38.4%) had a complete renal response and five (38.4%) had a partial response. Rituximab was also effective in patients with autoimmune thrombocytopenia, inducing a significant increase in platelet counts (p = 0.012). Nineteen of 25 patients with severe musculoskeletal involvement had remission of arthritis. Only one of the three patients with skin involvement had no lesions at 6 months. Rituximab treatment also allowed a reduction of the oral prednisone dose in the majority of patients. No baseline predictors of flare were found. Treatment was discontinued after the first infusion in two patients due to serum sickness and in another due to pulmonary infection. In conclusion, the addition of rituximab to conventional immunosuppressive therapy may be an effective strategy for lupus nephritis, autoimmune thrombocytopenia and inflammatory polyarthritis in patients with refractory systemic lupus erythematosus.
Assuntos
Anticorpos Monoclonais/uso terapêutico , Antígenos CD20/efeitos dos fármacos , Fatores Imunológicos/uso terapêutico , Lúpus Eritematoso Sistêmico/tratamento farmacológico , Adulto , Idoso , Anticorpos Monoclonais/efeitos adversos , Anticorpos Monoclonais/farmacologia , Anticorpos Monoclonais Murinos , Antígenos CD20/imunologia , Feminino , Seguimentos , Glucocorticoides/administração & dosagem , Glucocorticoides/uso terapêutico , Humanos , Fatores Imunológicos/efeitos adversos , Fatores Imunológicos/farmacologia , Imunossupressores/uso terapêutico , Estudos Longitudinais , Lúpus Eritematoso Sistêmico/imunologia , Lúpus Eritematoso Sistêmico/fisiopatologia , Masculino , México/epidemiologia , Pessoa de Meia-Idade , Prednisona/administração & dosagem , Prednisona/uso terapêutico , Estudos Retrospectivos , Rituximab , Índice de Gravidade de Doença , Resultado do Tratamento , Adulto JovemRESUMO
INTRODUCTION: Health-related quality of life (HRQOL) is affected by numerous clinical variables, including disease activity, damage, fibromyalgia, depression and anxiety. However, these associations have not yet been described in Mexican patients with systemic lupus erythematosus (SLE). OBJECTIVE: To evaluate the relationship between disease activity, damage, depression and fibromyalgia and HRQOL measured by the LupusQoL-instrument in Mexican patients with SLE. METHODS: A cross-sectional study was conducted in women fulfilling the 1997 ACR classification criteria for SLE. HRQOL was evaluated using a disease-specific instrument for SLE, the LupusQoL (validated for the Spanish-speaking population). Patients were evaluated clinically to determine the degree of disease activity and damage using the Mexican Systemic Lupus Erythematosus Disease Activity Index (Mex-SLEDAI) and Systemic Lupus International Collaborating Clinics-Damage Index (SLICC), respectively. Fibromyalgia and depression were assessed using the ACR criteria and the CES-D scale, respectively. The relationship between HRQOL and these variables was measured using Spearman's rank correlation coefficient and linear regression analysis. RESULTS: A total of 138 women with SLE, age 40.3±11 years, disease duration 8.8±6.4 years, with disease activity in 51.4%, depression in 50%, damage in 43% and fibromyalgia in 19.6% were included. Poorer HRQOL correlated with depression (r = -0.61; p< 0.005), fibromyalgia (r = -0.42; p< 0.005), disease activity (r = -0.37; p < 0.005) and damage (r = -0.31; p < 0.005). In the multivariate linear regression analysis, damage (ß = -3.756, p<0.005), fibromyalgia (ß = -0.920, p<0.005), depression (ß = -0.911, p<0.005) and disease activity (ß = -0.911, p<0.005) were associated with poor HRQOL. CONCLUSION: SLE disease activity, damage, fibromyalgia and depression were associated with poor HRQOL in our sample of Mexican SLE patients.
Assuntos
Lúpus Eritematoso Sistêmico/fisiopatologia , Qualidade de Vida , Adulto , Depressão/complicações , Feminino , Fibromialgia/complicações , Humanos , Lúpus Eritematoso Sistêmico/complicações , México , Pessoa de Meia-IdadeRESUMO
Catastrophic antiphospholipid syndrome (CAPS), also called "Asherson syndrome", is a variant of the antiphospholipid syndrome (APS) that occurs in less than 1% of APS cases. The etiology of CAPS is uncertain; however, several triggering factors have been recognized. The most common of these are infectious diseases, particularly those of the respiratory tract. CAPS pathogenesis is incompletely understood, but several theories have been proposed, such as the molecular mimicry theory, which describes the production of anti-ß2-glycoprotein I (GP1) antibody in response to infection. The process is complex and involves the activation of Toll-like receptor 4 (TLR-4), which triggers a cytokine storm, followed by endothelial alterations that induce a procoagulant state.
Assuntos
Síndrome Antifosfolipídica/imunologia , Animais , Humanos , Infecções/complicações , Mimetismo Molecular , Receptor 4 Toll-Like/imunologia , beta 2-Glicoproteína I/imunologiaRESUMO
P-glycoprotein (Pgp) is a transmembrane protein of 170 kD encoded by the multidrug resistance 1 (MDR-1) gene, localized on chromosome 7. More than 50 polymorphisms of the MDR-1 gene have been described; a subset of these has been shown to play a pathophysiological role in the development of inflammatory bowel disease, femoral head osteonecrosis induced by steroids, lung cancer and renal epithelial tumors. Polymorphisms that have a protective effect on the development of conditions such as Parkinson disease have also been identified. P-glycoprotein belongs to the adenosine triphosphate binding cassette transporter superfamily and its structure comprises a chain of approximately 1280 aminoacid residues with an N-C terminal structure, arranged as 2 homologous halves, each of which has 6 transmembrane segments, with a total of 12 segments with 2 cytoplasmic nucleotide binding domains. Many cytokines like interleukin 2 and tumor necrosis factor alpha increase Pgp expression and activity. Pgp functions as an efflux pump for a variety of toxins in order to protect particular organs and tissues as the central nervous system. Pgp transports a variety of substrates including glucocorticoids while other drugs such as tacrolimus and cyclosporine A act as modulators of this protein. The most widely used method to measure Pgp activity is flow cytometry using naturally fluorescent substrates such as anthracyclines or rhodamine 123. The study of drug resistance and its association to Pgp began with the study of resistance to chemotherapy in the treatment of cancer and antiretroviral therapy for human immunodeficiency virus; however, the role of Pgp in the treatment of systemic lupus erythematosus, rheumatoid arthritis and psoriatic arthritis has been a focus of study lately and has emerged as an important mechanism by which treatment failure occurs. The present review analyzes the role of Pgp in these autoimmune diseases.
Assuntos
Membro 1 da Subfamília B de Cassetes de Ligação de ATP/imunologia , Doenças Autoimunes/imunologia , Doenças Reumáticas/imunologia , Membro 1 da Subfamília B de Cassetes de Ligação de ATP/genética , Animais , Humanos , Polimorfismo Genético , Especificidade por SubstratoRESUMO
INTRODUCTION: Proximal partial articular tibia fractures represent a great challenge for orthopedic surgeons due to their symptoms and complex management. OBJECTIVE: To describe the results of surgical treatment of proximal articular fractures of the tibia. MATERIAL AND METHODS: Descriptive study conducted at a tertiary care hospital. We included patients with proximal partial articular tibia fracture (Müeller AO/ASIF 41-B), of both sexes, with a six-month postoperative follow-up and a complete clinical record. Postoperative assessment was conducted with the Orfaly & Keating scale. We used descriptive statistics with central trend and scatter measurements, Fischer test for the relative risk and logistic regression. RESULTS: The total number of patients was 25. Mean age was 41.6 (16-81), SD was 17.03 years; 15 patients were males (60%) and 10 females (40%); 1 (4%) had type-2 diabetes mellitus; the left side was affected in 17 (68%) patients; all patients underwent surgery with osteosynthesis; there was 100% match between the preoperative and postoperative diagnoses (Kappa 1.0); patient course was appropriate in 76% and acceptable in 24% (Orfaly & Keating); 16% had angular valgus deformity and 12% had joint stiffness. Females with RR 1.33 (CI 0.869-2.045) had angular valgus deformity; those with RR 0.22 (CI 0.27-1.846) had joint stiffness, RR was 2.68 for hockey stick plate osteosynthesis, and RR was 1.088 (CI 95%, 0.7-3.1) for the unsatisfactory course according to the Orfaly & Keating scale. CONCLUSION: A positive relative risk was found among females for angular valgus deformity, and in hockey stick plate osteosynthesis and minimal osteosynthesis for an unsatisfactory course, according to the Orfaly & Keating scale, six months after surgical treatment.
Assuntos
Fraturas da Tíbia/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Fixação Interna de Fraturas , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento , Adulto JovemRESUMO
OBJECTIVE: To describe the clinical evolution of patients with total knee replacement surgery due to grade IV gonarthrosis secondary to varus angular deformity. MATERIAL AND METHODS: A descriptive trial where we included patients who underwent total knee arthroplasty due to gonarthrosis secondary to varus angular deformity. We used the following variables, sex, age, affected side, type of approach, type of prosthesis, type of gait post-surgically, infection, vascular status, post-surgical pain, rejection of prosthetic material, varusflection angular deformity pre and post-surgically. RESULTS: We reviewed 13 files, 69.2% men and 30.8% women, the mean age was 72.38, minimum 56, maximum 82, DE 7.11 years. Six (46.2%) left knees and 7 (53.8%) right knees. All patients had a medial parapatellar approach and bone balancing, 23.1% had ligament balancing; 7.6% had a total knee replacement stabilized posteriorly and 93.3% not stabilized posteriorly; 1 (7.6%) patient had infection, none had vascular involvement, 76.9% had to walk with a cane, 15.4% walked on their own and 7.6% had no gait. The average grade of the angular deformity pre-surgery was 15.77 and the average post-surgery was less than or equal to 5 degrees, the difference of average grades pre and post-surgery was 36.719 and in flection 0.439, p = 0.00 and p = 0.669 respectively (paired t). CONCLUSION: We can conclude that the clinical evolution of patients with gonarthrosis secondary to varus angular deformity who underwent TKA is good, complications are similar to those in the literature.
Assuntos
Artroplastia do Joelho , Osteoartrite do Joelho/cirurgia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Osteoartrite do Joelho/classificaçãoRESUMO
OBJECTIVE: To identify the frequency of geriatric syndromes in patients with a non- recent hip fracture seen at a primary health care unit in the state of Puebla, Mexico. MATERIAL AND METHODS: Cross-sectional study conducted in 376 patients with a non-recent hip fracture screened for geriatric syndromes. We included demographic variables, urinary incontinence, polypharmacy, sleep disorder, nutritional status, depression and autonomy. The two latter were assessed using the Yesavage geriatric depression scale and the Katz index. We used descriptive statistics. RESULTS: The total number of patients was 376; 219 (58%) were females and 157 (42%) were males; mean age was 72.57 years (65-95 +/- 7.08), and 98.7% had at least one geriatric syndrome. Depression was detected in 303 (80.9%), 282 (75%) were on polypharmacy, 262 (69.7%) had sleep disorders, 63 (16.8%) had experienced falls, 19 (5.1%) had urinary incontinence, 15 (4%) were obese, and 3 (0.8%) had loss of autonomy. CONCLUSION: 98.7% of the patients had at least one geriatric syndrome; females were the most affected sex; depression was the most frequent syndrome, followed by polypharmacy, sleep disorders, falls, urinary incontinence, obesity and loss of autonomy.
Assuntos
Fraturas do Quadril/complicações , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Feminino , Humanos , Masculino , Atenção Primária à Saúde , Síndrome , Fatores de TempoRESUMO
BACKGROUND: Irritable bowel syndrome (IBS) impairs quality of life (HRQOL), as does systemic lupus erythematosus (SLE). Both are more common in women and are associated with fibromyalgia (FM). However, the relationship between IBS and SLE and its impact on HRQOL has not been explored. Therefore, we aimed to study the frequency and features likely to influence the presence of IBS-type symptoms in SLE and their impact on HRQOL. METHODS: Female patients with SLE were studied. The presence of IBS-type symptoms and bowel habit subtype were established by Rome III criteria and HRQOL was assessed using the SF-36. Fibromyalgia and depression were assessed using the American College of Rheumatology criteria and CES-D scale, respectively. KEY RESULTS: A total of 105 consecutive patients (43.62 ± 11.34 years old) were included; 48.6% had IBS-type symptoms (SLE+IBS) and were classified as IBS-C: 23.5%, IBS-D: 37.3%, and IBS-M: 39.2%. In addition, 23.8% had FM. SLE+IBS vs Non-IBS SLE patients had higher SLE activity scores (2.55 ± 1.65 vs 1.74 ± 2.19; p = 0.03), were more likely to have FM (33.0% vs 14.8%; p = 0.02) and depression (41.1% vs 25.9%, p = 0.04). Logistic multivariate analysis showed that IBS-type symptoms were associated with FM (OR = 2.85, 95% CI: 1.11-7.43) and depression (OR = 1.07, 95% CI: 1.02-1.13). Finally, SLE+IBS vs Non-IBS SLE patients had lower SF-36 scores (49.65 ± 18.57 vs 62.67 ± 18.14; p = 0.02). CONCLUSIONS & INFERENCES: IBS-type symptoms are highly prevalent among women with SLE and are associated with FM and depression. SLE+IBS patients had worse HRQOL vs Non-IBS SLE, independently of FM status. We suggest that treating IBS symptoms may improve HRQOL in women with SLE.
Assuntos
Síndrome do Intestino Irritável/epidemiologia , Síndrome do Intestino Irritável/psicologia , Lúpus Eritematoso Sistêmico/psicologia , Qualidade de Vida/psicologia , Adulto , Depressão/diagnóstico , Feminino , Fibromialgia/diagnóstico , Humanos , Síndrome do Intestino Irritável/complicações , Síndrome do Intestino Irritável/diagnóstico , Lúpus Eritematoso Sistêmico/complicações , Pessoa de Meia-IdadeRESUMO
Objetivo: Identificar la frecuencia de síndromes geriátricos en pacientes que sufrieron fractura de cadera no reciente en una unidad de primer nivel de atención médica en el estado de Puebla, México. Material y métodos: Estudio transversal realizado en 376 pacientes que sufrieron fractura de cadera no reciente, a los que se les evaluó la presencia de síndromes geriátricos. Incluimos variables demográficas, incontinencia urinaria, polifarmacia, trastornos del sueño, estado nutricional, así como depresión y autonomía. La depresión y autonomía fueron evaluadas por las escalas de Yesavage y Katz. Utilizamos estadística descriptiva. Resultados: Fueron un total de 376 pacientes, 219 (58%) femeninos, 157 (42%) masculinos; edad promedio 72.57, (65-95, ± 7.08) años, 98.7% presentó al menos un síndrome geriátrico. La depresión se detectó en 303 (80.9%), la polifarmacia se observó en 282 (75%), en cuanto a los trastornos del sueño se encontraron en 262 (69.7%), las caídas se encontraron en 63 (16.8%), la incontinencia urinaria en 19 (5.1%), en cuanto a la obesidad en 15 (4%) y pérdida de la autonomía en 3 (0.8%). Conclusión: 98.7% padecen por lo menos un síndrome geriátrico, el género femenino es el más afectado, el síndrome más frecuente es depresión, seguida de polifarmacia, trastorno del sueño, caídas, incontinencia urinaria, obesidad y pérdida de la autonomía.
Objective: To identify the frequency of geriatric syndromes in patients with a non-recent hip fracture seen at a primary health care unit in the state of Puebla, Mexico. Material and methods: Cross-sectional study conducted in 376 patients with a non-recent hip fracture screened for geriatric syndromes. We included demographic variables, urinary incontinence, polypharmacy, sleep disorder, nutritional status, depression and autonomy. The two latter were assessed using the Yesavage geriatric depression scale and the Katz index. We used descriptive statistics. Results: The total number of patients was 376; 219 (58%) were females and 157 (42%) were males; mean age was 72.57 years (65-95 ± 7.08), and 98.7% had at least one geriatric syndrome. Depression was detected in 303 (80.9%), 282 (75%) were on polypharmacy, 262 (69.7%) had sleep disorders, 63 (16.8%) had experienced falls, 19 (5.1%) had urinary incontinence, 15 (4%) were obese, and 3 (0.8%) had loss of autonomy. Conclusion: 98.7% of the patients had at least one geriatric syndrome; females were the most affected sex; depression was the most frequent syndrome, followed by polypharmacy, sleep disorders, falls, urinary incontinence, obesity and loss of autonomy.