Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 53
Filtrar
1.
Int J Ment Health Syst ; 16(1): 57, 2022 Dec 17.
Artigo em Inglês | MEDLINE | ID: mdl-36527036

RESUMO

BACKGROUND: International estimates suggest around a third of students arrives at university with symptoms indicative of a common mental disorder, many in late adolescence at a developmentally high-risk period for the emergence of mental disorder. Universities, as settings, represent an opportunity to contribute to the improvement of population mental health. We sought to understand what is known about the management of student mental health, and asked: (1) What proportion of students use mental health services when experiencing psychological distress? (2) Does use by students differ across health service types? METHODS: A systematic review was conducted following PRISMA guidelines using a Context, Condition, Population framework (CoCoPop) with a protocol preregistered on Prospero (CRD42021238273). Electronic database searches in Medline, Embase, PsycINFO, ERIC and CINAHL Plus, key authors were contacted, citation searches were conducted, and the reference list of the WHO World Mental Health International College Student Initiative (WMH-ICS) was searched. Data extraction was performed using a pre-defined framework, and quality appraisal using the Joanna Briggs Institute tool. Data were synthesised narratively and meta-analyses at both the study and estimate level. RESULTS: 7789 records were identified through the search strategies, with a total of 44 studies meeting inclusion criteria. The majority of included studies from the USA (n = 36), with remaining studies from Bangladesh, Brazil, Canada, China, Ethiopia and Italy. Overall, studies contained 123 estimates of mental health service use associated with a heterogeneous range of services, taking highly variable numbers of students across a variety of settings. DISCUSSION: This is the first systematic quantitative survey of student mental health service use. The empirical literature to date is very limited in terms of a small number of international studies outside of the USA; studies of how services link together, and of student access. The significant variation we found in the proportions of students using services within and between studies across different settings and populations suggests the current services described in the literature are not meeting the needs of all students.

2.
SSM Ment Health ; 2: 100175, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37916032

RESUMO

Background: When experiencing mental distress, many university students seek support from their peers. In schools and mental health services, formalised peer support interventions have demonstrated some success but implementation challenges have been reported. This study aimed to assess the feasibility, acceptability and safety of a novel manualized peer support intervention and associated data collection processes. Methods: A longitudinal mixed methods study was conducted following the pilot of a peer support intervention at a large London university between June 2021 and May 2022. The study utilised data routinely recorded on all students who booked a peer support session, focus groups with nine peer workers and five staff members implementing the intervention, pre-post intervention surveys with 13 students and qualitative interviews with 10 of those students. Results: 169 bookings were made during the pilot, of which 130 (77%) were attended, with November the peak month. Staff and peer workers described strong motivation and commitment to implement the intervention, noting that the peer support model and peer worker role addressed previously unmet needs at the university. However, students described implementation problems relating to the coherence of the intervention and the burden of participation. While students mostly described acceptable experiences, there were examples where acceptability was lower. No adverse events were reported during the pilot. Conclusion: The training and supervision of peer workers, and the provision of one-to-one peer support to students was found to be feasible, mostly acceptable, and safe. However, sustained implementation difficulties were observed. These pose challenges to the scalability of peer support in universities. We make recommendations to improve implementation of peer support including improving reach, greater clarity about the intervention, and fuller involvement of students throughout.

3.
Scand J Rheumatol ; 51(4): 323-328, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-34232106

RESUMO

OBJECTIVE: Systemic sclerosis (SSc) is a complex, heterogeneous connective tissue disease with multiorgan dysfunction. This study aimed to compare healthcare utilization among incident cases of SSc versus age- and gender-matched comparators. METHOD: A population-based cohort of physician-diagnosed patients with SSc in Olmsted County, MN, USA, from 1 January 1988 to 31 December 2016 was assembled. A 2:1 cohort of age- and gender-matched non-SSc subjects was randomly selected for comparison. Patients were followed until death, migration from Olmsted County, or 31 December 2017. Outpatient utilization data were obtained beginning 12 months before the SSc incidence/index date and compared using negative binomial and multinomial models. Services were summarized as visit-days to avoid overestimation of services provided. RESULTS: The study included 69 incident SSc cases and 138 non-SSc comparators (mean ± sd age 57 ± 16 years at diagnosis/index, 90% female). Patients with SSc had higher utilization of outpatient physician, laboratory, and combined radiology visit-days annually for the year before and for each of the first 5 years after diagnosis than comparators. Among patients with SSc, healthcare utilization was highest during the year of SSc diagnosis. Rate ratios comparing utilization in patients with and without SSc ranged from 1.8 to 3.0 for all comparisons. CONCLUSION: Higher utilization of outpatient physician, laboratory, and radiology visit-days was observed among patients with SSc compared to non-SSc subjects throughout 5 years of disease duration, indicating high and continued care needs in this patient population. The highest utilization of services among SSc patients occurred during the year of SSc diagnosis.


Assuntos
Pacientes Ambulatoriais , Escleroderma Sistêmico , Adulto , Idoso , Estudos de Coortes , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Aceitação pelo Paciente de Cuidados de Saúde , Escleroderma Sistêmico/epidemiologia , Escleroderma Sistêmico/terapia
4.
Lupus ; 26(3): 240-247, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27365370

RESUMO

In 2012, the Systemic Lupus International Collaborating Clinics (SLICC) group published a new set of classification criteria for systemic lupus erythematosus (SLE). Studies applying these criteria to real-life scenarios have found either equal or greater sensitivity and equal or lower specificity to the 1997 ACR classification criteria (ACR 97). Nonetheless, there are no studies that have used the SLICC 12 criteria to investigate the incidence of lupus. We used the resource of the Rochester Epidemiology Project to identify incident SLE patients in Olmsted County, Minnesota, from 1993 to 2005, who fulfilled the ACR 97 or SLICC 12 criteria. A total of 58 patients met criteria by SLICC 12 and 44 patients met criteria by ACR 97. The adjusted incidence of 4.9 per 100,000 person-years by SLICC 12 was higher than that by ACR 97 (3.7 per 100,000 person-years, p = 0.04). The median duration from the appearance of first criterion to fulfillment of the criteria was shorter for the SLICC 12 than for ACR 97 (3.9 months vs 8.1 months). The higher incidence by SLICC 12 criteria came primarily from the ability to classify patients with renal-limited disease, the expansion of the immunologic criteria and the expansion of neurologic criteria.


Assuntos
Lúpus Eritematoso Sistêmico/classificação , Lúpus Eritematoso Sistêmico/epidemiologia , Reumatologia , Adolescente , Adulto , Distribuição por Idade , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Minnesota/epidemiologia , Análise de Regressão , Índice de Gravidade de Doença , Sociedades Médicas , Adulto Jovem
5.
Clin Exp Rheumatol ; 15(4): 343-7, 1997.
Artigo em Inglês | MEDLINE | ID: mdl-9272292

RESUMO

OBJECTIVE: Polyamines are increased in activated lymphocytes, including peripheral blood lymphocytes (PBL) from patients with rheumatoid arthritis (RA), and are important in modulating immune-mediated cellular responses. In vitro studies have suggested that methotrexate (MTX) interferes with polyamine synthesis. This study evaluated the in vivo polyamine response to MTX compared to other anti-arthritic agents, and correlated it with the clinical and immunological response. METHODS: The polyamine content of PBL was determined in 14 RA patients at initiation of treatment with MTX (n = 8), hydroxychloroquine (HCQ) (n = 3), or prednisone (n = 3), and then monthly for four months. IgM rheumatoid factor (RF) synthesis by PBL in vitro was assessed and tender joints were counted monthly. RESULTS: Polyamines (spermine and spermidine) decreased by 55% at three months in the MTX group compared to 4% and 9% in the HCQ and prednisone groups, respectively (p < 0.01). However, group differences in the clinical and immunological response were not significant. In the MTX group there was a positive correlation between polyamine levels and the joint count. Such a correlation was not observed in the other groups. CONCLUSION: These data suggest that MTX interference with the polyamine pathway is not shared by prednisone and HCQ, and is associated with its beneficial effect in RA.


Assuntos
Anti-Inflamatórios/uso terapêutico , Antirreumáticos/uso terapêutico , Artrite Reumatoide/metabolismo , Linfócitos/metabolismo , Poliaminas/metabolismo , Fator Reumatoide/biossíntese , Adulto , Artrite Reumatoide/tratamento farmacológico , Células Cultivadas , Feminino , Humanos , Hidroxicloroquina/uso terapêutico , Articulações/patologia , Ativação Linfocitária , Linfócitos/efeitos dos fármacos , Masculino , Metotrexato/uso terapêutico , Pessoa de Meia-Idade , Prednisona/uso terapêutico , Índice de Gravidade de Doença
6.
Clin Exp Rheumatol ; 14(4): 395-9, 1996.
Artigo em Inglês | MEDLINE | ID: mdl-8871838

RESUMO

OBJECTIVE: Several studies have documented increased levels of polyamines in rheumatoid arthritis (RA). We have suggested that one of the mechanisms of action of methotrexate (MTX) involves the inhibition of polyamine synthesis in lymphocytes. In this study, we sought to establish the inhibitory effect of MTX on polyamine synthesis and its specificity. METHODS: Polyamine levels were determined in stimulated RA lymphocytes incubated in vitro with MTX and compared to levels in lymphocytes incubated with hydrocortisone, D-penicillamine, or medium alone. Lymphocyte polyamine levels were correlated with IgM-rheumatoid factor (RF) synthesis. RESULTS: Incubation with MTX resulted in concentration-dependent decreased intracellular levels of spermidine and spermine, while putrescine levels were not affected. Addition of folinic acid or S-adenosyl-methionine (SAM) prevented this MTX-induced inhibition. Incubation with D-penicillamine or hydrocortisone had no significant effect on polyamine levels. There was a positive correlation between intracellular polyamine levels and the inhibition of IgM-RF synthesis by MTX. CONCLUSION: These data suggest that MTX inhibits the synthesis of spermidine and spermine in stimulated RA lymphocytes through inhibition of the SAM-dependent pathway. This inhibition may be related to the immune-modulating properties of MTX.


Assuntos
Antirreumáticos/farmacologia , Artrite Reumatoide/sangue , Linfócitos/metabolismo , Metotrexato/farmacologia , Poliaminas/metabolismo , Anti-Inflamatórios/farmacologia , Artrite Reumatoide/tratamento farmacológico , Artrite Reumatoide/imunologia , Técnicas de Cultura de Células , Cromatografia Líquida de Alta Pressão , Relação Dose-Resposta a Droga , Ensaio de Imunoadsorção Enzimática , Humanos , Hidrocortisona/farmacologia , Imunoglobulina M/imunologia , Linfócitos/efeitos dos fármacos , Penicilamina/farmacologia , Poliaminas/antagonistas & inibidores , Putrescina/metabolismo , Fator Reumatoide/biossíntese , Fator Reumatoide/efeitos dos fármacos , Espermidina/metabolismo , Espermina/metabolismo
7.
J Rheumatol ; 23(1): 155-8, 1996 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-8838525

RESUMO

OBJECTIVE: Twenty-four patients with systemic onset juvenile rheumatoid arthritis (JRA) were evaluated to determine its effects on facial morphology and temporomandibular joint (TMJ) form and function. METHODS: Patients were evaluated with medical and dental histories, facial photographs, intraoral examination, TMJ examination, lateral tomograms or panoramic radiographs, cephalograms, and impressions for study models. The craniomandibular index (CMI) was used to quantitate mandibular movement, tenderness, and TMJ noise. Symptoms were measured by symptom severity index (SSI). CMI data from the patients with JRA were compared to a group of 24 children without JRA with similar mean age and sex distribution. RESULTS: Our study indicates the facial morphology of patients with systemic onset JRA is similar to that of healthy children except for a mild convex facial profile and backward rotation of the mandible. Changes in facial form were associated with radiographic condylar abnormalities. CMI scores and SSI scores of systemic onset patients were significantly greater than controls, and radiographic condylar changes were noted in 29.2% of the patients with systemic onset JRA. CONCLUSION: Our study suggests that systemic onset JRA significantly affects TMJ form and function. Facial form was only affected in the few patients with significant radiographic condylar changes.


Assuntos
Artrite Juvenil/patologia , Face/patologia , Articulação Temporomandibular/anatomia & histologia , Articulação Temporomandibular/fisiologia , Adolescente , Cefalometria , Criança , Pré-Escolar , Feminino , Humanos , Masculino
8.
J Rheumatol ; 23(1): 159-65, 1996 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-8838526

RESUMO

OBJECTIVE: To characterize the functional and morphologic effects of polyarticular and pauciarticular onset juvenile rheumatoid arthritis (JRA) on the temporomandibular joint (TMJ). METHODS: Medical and dental histories, intraoral, lateral cephalometric, and panoramic radiographs, facial photographs, and dental study models were obtained for each of 30 patients with JRA (17 pauciarticular and 13 polyarticular onset). Measures of TMJ dysfunction were gathered during the clinical examination, and an index of condylar morphology was inferred from the panoramic radiographs. The lateral cephalograms were traced, and data from 34 linear and angular measures used to compare the facial morphology of the 2 JRA onset types, both to normative standards and to each other (Student's t test). The Kruskal-Wallis test was used to evaluate the significance of between-group differences for the various ordinal indices. RESULTS: As indicated by the higher TMJ dysfunction and condylar index scores, polyarticular onset JRA affects the form and function of the TMJ more frequently and severely than does pauciarticular onset. Moreover, compared to normative cephalometric standards, the patients with polyarticular onset had small, short faces with underdeveloped mandibles. CONCLUSION: Both polyarticular and pauciarticular onset JRA have a negative effect on the form, function, and esthetics of the face and mandible; however, the effects are more pronounced with polyarticular JRA than pauciarticular onset.


Assuntos
Artrite Juvenil/fisiopatologia , Mandíbula/crescimento & desenvolvimento , Desenvolvimento Maxilofacial/fisiologia , Adolescente , Artrite Juvenil/patologia , Cefalometria , Criança , Feminino , Humanos , Masculino , Mastigação/fisiologia , Articulação Temporomandibular/crescimento & desenvolvimento , Articulação Temporomandibular/fisiologia
9.
Clin Exp Rheumatol ; 13(5): 667-72, 1995.
Artigo em Inglês | MEDLINE | ID: mdl-8575151

RESUMO

OBJECTIVE: Immune complexes (IC) have been detected in the majority of sera of patients with juvenile rheumatoid arthritis (JRA). Our aim was to determine the possible constituents of these IC. METHODS: One hundred and four sera from patients with JRA were separated on a Sepharose 4B column to which were bound F(ab')2 fragments of goat anti-human IgM antibody to separate IgM-containing IC. The column was sequentially eluted with 1 M ammonia and 0.1 M glycine-HCl buffer, pH 3. The eluted material was treated with sodium dodecyl sulfate (SDS) and simultaneously reduced with 2-mercaptoethanol. Individual components were then separated by SDS-gradient polyaclylamide gel electrophoresis and were transferred to nitrocellulose by Western blotting. The nitrocellulose strips were overlaid with the patient's own serum and developed with specific antiserum to human IgM and IgG. RESULTS: Four bands were noted in the majority of JRA patients, including a band in the 70-80 kD area to the IgM heavy chain and in the 50 kD area to the IgG heavy chain. Additional bands specific for JRA patients' sera were noted in the 40 kD and 60 kD areas. Overall, 61 of 104 sera demonstrated all four bands; 78 showed the 40 kD band and 73 the 60 kD band. CONCLUSION: These IC were previously shown to contain IgM rheumatoid factor (RF), IgG-RF, and IgG in addition to the 40 and/or 60 kD constituents present in the isolates. Preliminary studies on these constituents suggest the possibility of the 60 kD band being the human 60 kD mitochondrial heat shock protein. Further investigations of these immune complex components may aid in the understanding of the pathophysiology of JRA.


Assuntos
Complexo Antígeno-Anticorpo/sangue , Artrite Juvenil/imunologia , Adolescente , Adulto , Western Blotting , Criança , Pré-Escolar , Eletroforese em Gel de Poliacrilamida , Humanos
10.
Semin Arthritis Rheum ; 24(5): 297-303, 1995 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-7604297

RESUMO

There are striking similarities between human parvovirus B19 (HPV-B19) infection and systemic lupus erythematosus (SLE): both may present with malar rash, fever, arthropathy, myalgia, cytopenia, hypocomplementemia, anti-DNA, and antinuclear antibodies (ANA). Therefore, it is difficult at times to differentiate HPV-B19 infection from SLE presentation or exacerbation. We report 4 cases of HPV-B19 infection mimicking SLE and review 10 other reported cases, all of whom were women. The similarity to a typical SLE presentation was indeed striking: most patients presented with rash, arthropathy, myalgia, fever, and positive ANA. In some cases, HPV-B19 infection seemed to exacerbate SLE rather then resemble it, and differentiation was difficult. Nearly all patients improved within several weeks. However, a few patients had symptoms and laboratory abnormalities lasting more than 6 months. The possibility of HPV-B19 infection should be entertained in patients presenting with SLE-like features.


Assuntos
Eritema Infeccioso/diagnóstico , Lúpus Eritematoso Sistêmico/diagnóstico , Adulto , Anticorpos Antinucleares/análise , Anticorpos Antivirais/análise , Criança , Diagnóstico Diferencial , Eritema Infeccioso/tratamento farmacológico , Eritema Infeccioso/fisiopatologia , Feminino , Humanos , Ibuprofeno/administração & dosagem , Ibuprofeno/uso terapêutico , Lúpus Eritematoso Sistêmico/fisiopatologia , Parvovirus B19 Humano/imunologia , Parvovirus B19 Humano/isolamento & purificação , Prognóstico
11.
J Anim Sci ; 73(2): 589-97, 1995 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-7601795

RESUMO

Forty-eight medium-framed, crossbred steers (average BW = 268 +/- 20 kg) were limit-fed a 35% concentrate diet to gain approximately .10 kg/d during a 66-d restriction (REST) period. This was followed by a 98-d realimentation (REAL) period in which steers were allotted to a 3 x 2 factorial arrangement of treatments. Treatments were 80% concentrate diets containing 9, 12, or 15% CP, and implantation of one-half of the steers with 24 mg/steer of estradiol-17 beta (E2; Compudose). The allotted steers were distributed across four pens (12 steers/pen) with each pen containing two replicates of each treatment combination. Individual feed intakes were monitored using a Calan gate system. Each steer had ad libitum access to its respective diet. Longissimus muscle area and fat thickness at the 12th rib were measured using real-time ultrasound. Dry matter intake was not affected by CP or E2 through d 56. Steers fed 9% CP weighed less (quadratic, P < .05) after d 14 than steers fed 12 or 15% CP due to slower (quadratic, P < .05) gains during this initial period. Implantation increased (P < .05) ADG from d 15 to 56 resulting in heavier BW (P < .05) on d 56 and 98. Increasing concentrations of dietary CP resulted in linear (P < .05) increases in longissimus muscle area on d 28 and 56, and fat thickness on d 98. Serum IGF-I concentrations were lowest on d -21 of REST and highest on d 28 of REAL (quadratic, P < .05).(ABSTRACT TRUNCATED AT 250 WORDS)


Assuntos
Bovinos/crescimento & desenvolvimento , Proteínas Alimentares/farmacologia , Ingestão de Alimentos/fisiologia , Estradiol/farmacologia , Fator de Crescimento Insulin-Like I/análise , Animais , Nitrogênio da Ureia Sanguínea , Composição Corporal/efeitos dos fármacos , Composição Corporal/fisiologia , Peso Corporal/efeitos dos fármacos , Peso Corporal/fisiologia , Bovinos/metabolismo , Proteínas Alimentares/administração & dosagem , Implantes de Medicamento , Estradiol/administração & dosagem , Masculino , Músculo Esquelético/anatomia & histologia , Distribuição Aleatória
12.
J Rheumatol ; 21(12): 2359-63, 1994 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-7699643

RESUMO

OBJECTIVE: Cytokines play an important role in mediating inflammation and in regulating the immune response of many rheumatological diseases. In patients with juvenile rheumatoid arthritis (JRA), levels of 6 cytokines, interleukin 1 alpha (IL-1 alpha), IL-1 beta (IL-1 beta), IL-2, IL-2 receptor (IL-2R), IL-6, and tumor necrosis factor alpha (TNF-alpha) were measured in serum and synovial fluid (SF) in an effort to evaluate their significance. METHODS: Serum concentrations of the 6 cytokines were measured in 62 patients with JRA including 22 pauciarticular onset, 26 polyarticular onset, and 14 systemic onset patients, and 29 disease and healthy controls using enzyme-linked immunoabsorbent assays (ELISA). Seventeen SF from patients with JRA were examined for cytokine levels. RESULTS: Elevated serum levels of IL-2R were found in patients with systemic onset and elevated IL-2 levels in pauciarticular and polyarticular onset JRA as compared to controls. Pauciarticular and polyarticular onset patients also had elevated IL-1 alpha and IL-6 levels. There were no statistical differences found between the groups for TNF-alpha and IL-1 beta. SF revealed elevated levels of IL-1 beta, IL-2R, and IL-6; however, correlation was noted between serum and SF levels only for IL-1 alpha, not for the other cytokines. Mean serum levels of IL-2R in all onset types with active disease and IL-6 levels in active polyarticular and pauciarticular onset were elevated when compared with mean inactive levels. CONCLUSION: Our studies indicate that (1) IL-1 alpha, IL-2, IL-2R, and IL-6 levels are increased in serum of patients with JRA with different onset types; (2) elevated levels of IL-1 beta, IL-2R, and IL-6 are found in their SF compared to serum levels; (3) a correlation exists between serum and SF levels only for IL-1 alpha; (4) mean IL-2R levels are elevated with active disease in all onset types and mean IL-6 levels with active polyarticular and pauciarticular onset disease are elevated compared to mean levels of inactive patients; and (5) cytokines may thus play a role as inflammatory mediators in JRA.


Assuntos
Artrite Juvenil/metabolismo , Citocinas/metabolismo , Líquido Sinovial/metabolismo , Adolescente , Artrite Juvenil/sangue , Criança , Pré-Escolar , Citocinas/sangue , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Interleucinas/sangue , Interleucinas/metabolismo , Masculino , Receptores de Interleucina-2/metabolismo , Fator de Necrose Tumoral alfa/metabolismo
13.
Semin Arthritis Rheum ; 24(3): 165-72, 1994 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-7899874

RESUMO

Thrombotic microangiopathic hemolytic anemia (TMHA) is characterized by thrombocytopenia, microangiopathic hemolytic anemia, fever, neurological symptoms, and kidney involvement. It presents as thrombotic thrombocytopenic purpura (TTP) or hemolytic uremic syndrome (HUS). TMHA has been considered to occur only rarely in systemic lupus erythematosus (SLE). However, there has been an increase in the reporting of this association in recent years, and autopsy studies have suggested that TMHA may be underdiagnosed in SLE because of the similarity in symptoms. We report four patients with SLE-related TMHA and describe 24 more patients from a literature review. All patients were women, 50% had active SLE, 89% presented as TTP, and 11% presented as HUS. Those patients with active SLE had low complement levels. Antiphospholipid antibodies or lupus anticoagulant were positive in 5 of 8 cases. Patients treated with plasma infusions or plasmapheresis had a lower mortality rate at 25% compared with 57% mortality in patients who were not treated with plasma infusions or plasmapheresis. It is suggested that TMHA should be considered in any SLE patient presenting with neurological symptoms or renal failure associated with fever, hemolytic anemia, and thrombocytopenia. Early recognition and appropriate therapy with plasmapheresis may improve prognosis.


Assuntos
Anemia Hemolítica/etiologia , Lúpus Eritematoso Sistêmico/complicações , Púrpura Trombocitopênica Trombótica/etiologia , Adulto , Anemia Hemolítica/diagnóstico , Anemia Hemolítica/terapia , Síndrome Antifosfolipídica/complicações , Feminino , Síndrome Hemolítico-Urêmica/complicações , Humanos , Púrpura Trombocitopênica Trombótica/diagnóstico , Púrpura Trombocitopênica Trombótica/terapia
15.
J Rheumatol ; 20(8): 1406-8, 1993 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-8230028

RESUMO

Antiphospholipid antibody syndrome (APS) has been shown to be associated with arterial and venous thromboses, recurrent miscarriages, and thrombocytopenia. We describe 3 cases of adult respiratory distress syndrome (ARDS) in patients with primary APS. The autopsy in one patient revealed no evidence of vasculitis, but extensive small vessel thrombosis of multiple organs including the lungs was seen. No infectious process, connective tissue diseases, or pulmonary edema could be documented and there was no clinical or laboratory evidence of vasculitis in the other 2 patients. The 2 patients who survived responded dramatically to intravenous steroids.


Assuntos
Síndrome Antifosfolipídica/complicações , Síndrome do Desconforto Respiratório/complicações , Adulto , Feminino , Humanos , Injeções Intravenosas , Masculino , Metilprednisolona/uso terapêutico , Pessoa de Meia-Idade , Síndrome do Desconforto Respiratório/tratamento farmacológico , Trombose/etiologia
16.
J Pediatr Ophthalmol Strabismus ; 30(4): 243-8, 1993.
Artigo em Inglês | MEDLINE | ID: mdl-7692031

RESUMO

Although the uveitis associated with juvenile rheumatoid arthritis (JRA) is presumed to have an autoimmune etiology, its pathogenesis is unknown. We utilized immunohistochemical techniques to detect the presence of serum antibodies directed against ocular tissues in these patients. The staining patterns of serum from patients with JRA, with and without uveitis, were compared with normal controls. Antibodies directed against epitopes in iris and ciliary body basement membranes, lens epithelium and fibers, Bruch's membrane, and iris and retinal blood vessels were observed in the sera of several individuals. These staining patterns were statistically more frequent among the pauciarticular and polyarticular JRA patients, with and without uveitis, than either the systemic JRA or normal populations. These results demonstrate the presence of antiocular antibodies in the sera of JRA patients, with and without uveitis. Whether those nonuveitic JRA patients with antiocular antibodies will develop uveitis is unknown at this time.


Assuntos
Segmento Anterior do Olho/imunologia , Artrite Juvenil/imunologia , Autoanticorpos/sangue , Retina/imunologia , Adolescente , Adulto , Criança , Pré-Escolar , Reações Cruzadas/imunologia , Epitopos/imunologia , Feminino , Imunofluorescência , Humanos , Imunoglobulina G/sangue , Masculino , Uveíte Anterior/imunologia
17.
J Rheumatol Suppl ; 38: 12-5, 1993 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-8366507

RESUMO

Patients with cystic fibrosis (CF) have demonstrated more arthritides with their longer life expectancy. The most common presentations have been that of an episodic arthritis or a hypertrophic osteoarthropathy. However, other arthropathies have been associated with CF. We now describe 3 new patients with CF and arthritis, and review the types of arthritis that may be found in patients with CF. This report is to increase awareness of the arthropathies that may be found in patients with CF so that proper evaluation, classification, and treatment may be facilitated.


Assuntos
Artrite/etiologia , Fibrose Cística/complicações , Adulto , Artrite/patologia , Feminino , Humanos , Lactente , Masculino
18.
Semin Arthritis Rheum ; 22(4): 265-74, 1993 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-8484133

RESUMO

Early studies showed few immunologic abnormalities in juvenile rheumatoid arthritis (JRA) patients. There were no specific laboratory markers useful for diagnosis and assessment of the course of disease in JRA. Previous work showed an association of antinuclear antibodies (ANA) with early-onset pauciarticular disease and iridocyclitis. Similarly, the presence of 19S immunoglobulin (Ig) M rheumatoid factors (RF) was associated with late-onset polyarticular disease in girls. More recent studies have detected many unique autoantibodies. Newer assays show 19S IgM RF in up to 35% of JRA patients, although still mainly in girls with late-onset polyarticular disease. Hidden 19S IgM RF can be shown in up to 75% of JRA patients using different procedures, primarily in those with active polyarticular-or pauciarticular-onset disease. Immune complexes have been detected in JRA patients by means of different techniques; their presence usually correlates with active disease. Studies on a specific ANA in JRA have shown no common extractable nuclear antigen, but antihistone antibodies have been found in up to 75% of cases, again mainly in those with pauciarticular onset and iritis. Finally, a variety of unusual immunologic proteins have also been detected, including anti-ocular, anti-cellular, anti-cardiolipin, anti-perinuclear factor, and anti-collagen antibodies. This review evaluates the significance of these antibodies that can now be found in JRA.


Assuntos
Anticorpos Antinucleares/sangue , Complexo Antígeno-Anticorpo/sangue , Artrite Juvenil/imunologia , Imunoglobulina M/sangue , Fator Reumatoide/sangue , Artrite Juvenil/sangue , Criança , Pré-Escolar , Feminino , Humanos , Masculino
19.
Ultrasound Med Biol ; 19(5): 365-74, 1993.
Artigo em Inglês | MEDLINE | ID: mdl-8356780

RESUMO

To determine the role of ultrasonic tissue characterization for the detection of changes in myocardial architecture associated with cardiomyopathy, acoustic microscopy was performed on the hearts of 4- to 6-month-old tight-skin mice [TSK/+, C57-B10.D2 (58B)/SN strain], a model of cardiomyopathy characterized by diffuse interstitial fibrosis. Ultrasonic backscatter was measured from excised segments of left ventricular free walls of five TSK mice and five sex- and age-matched normal controls with a 50 MHz broad band focused piezoelectric transducer operated in a saline-filled water tank at room temperature. Forty-nine radio frequency (RF) lines were digitized from each specimen at 2 ns/sample. Power spectral analysis of RF data was performed and mean integrated backscatter (IB) computed. The TSK group demonstrated greater IB (-53.6 +/- 0.6 dB, n = 5) than did the control group (-56.6 +/- 0.7 dB, n = 5; p < 0.02). Myocardial collagen content determined by hydroxyproline assay increased by 11% in the TSK group (2.54 +/- 0.08 microgram/mg dry wt, n = 5) over that in controls (2.28 +/- 0.07 microgram/mg dry wt, n = 5; p < 0.05). A significant linear relationship was observed between myocardial hydroxyproline concentration and IB (r = 0.74; p < 0.02). Thus, ultrasonic tissue characterization permits sensitive detection of modest changes in the extent of interstitial fibrosis that accompany tissue remodeling in the early stages of cardiomyopathy.


Assuntos
Cardiomiopatias/diagnóstico por imagem , Ventrículos do Coração/fisiopatologia , Acústica , Animais , Cardiomiopatias/fisiopatologia , Camundongos , Microscopia/métodos , Ultrassonografia
20.
J Anim Sci ; 70(8): 2501-9, 1992 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-1506311

RESUMO

Two experiments were conducted to determine the physiological responses of consuming a fungus-free (FF) or fungus-infected (INF) tall fescue diet (Exp. 1) or the FF diet plus ergotamine tartrate at 30 ppm (FF/ET, Exp. 2) in a thermoneutral (21 degrees C) or heat-stressed environment (32 degrees C, dry bulb; 10 degrees C dew point). Treatment periods lasted 28 d after a 10-d adaptation period. Experiment 1 was replicated three times, and Exp. 2 was replicated twice, with eight Holstein steers in each replicate (mean BW = 185 kg). Feed intake (FI), rectal temperature (RT), and respiration rate (RR) were recorded daily, and heart rate (HR) and infrared temperatures at the ear canal (ECT), ear tip (ETT), pastern (PT), coronary band (CBT), and tail tip (TTT) were recorded weekly. Consumption of INF and FF/ET compared with FF diets decreased (P less than .10) FI, HR, ECT, PT, CBT, and TTT and elevated (P less than .10) RT and RR by 2.8, 2.77 kg/d; 17, 23 beats/min; .8, 1.1 degrees C; .9, 1.1 degrees C; .8, .9 degrees C; 1.1, 2.6 degrees C; .3, .5 degrees C; and 8, 8 breaths/min; respectively. Ear-tip temperature was reduced (P less than .10) 1.6 degrees C by consumption of INF but not by consumption of FF/ET. Reduction of peripheral temperatures is indicative of reduced blood flow to peripheral areas as a result of vasoconstriction.(ABSTRACT TRUNCATED AT 250 WORDS)


Assuntos
Ração Animal/microbiologia , Bovinos/fisiologia , Ergotamina/farmacologia , Microbiologia de Alimentos , Poaceae/microbiologia , Animais , Temperatura Corporal , Ingestão de Alimentos , Ergotamina/administração & dosagem , Frequência Cardíaca , Masculino , Respiração , Temperatura , Aumento de Peso
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...