Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 5 de 5
Filter
1.
Rev. bras. alergia imunopatol ; 30(6): 247-249, nov.-dez.2007.
Article in Portuguese | LILACS | ID: lil-481355

ABSTRACT

Objetivos: a) identificar alterações espirométricas em indivíduos com sobrepeso e obesos; b) determinar a freqüência e a gravidade dos distúrbios ventilatórios em obesos; c) correlacionar índice de massa corpórea (lMC), circunferência abdominal (CA) e a relação cintura quadril (RCQ) com parâmetros espirométricos. Métodos: Foram estudados 156 voluntários de ambos os gêneros (32 com peso normal, 39 com sobrepeso e 85 obesos), com idades entre 15 e 51 anos, sedentários, assintomáticos oriundos de ambulatório universitário e clínica privada. Todos foram submetidos à avaliação clínica, exames laboratoriais e espirometrias. Altura, peso, lMC, CA e RCQ foram mensurados e correlacionados com parametros espirométricos. Os distúrbios ventilatórios classificados em obstrutivos, restritivos e mistos foram associados à intensidade da obesidade. Resultados: Alterações espirométricas foram observadas em 12,4 por cento dos indivíduos com peso normal, 28,2 por cento com sobrepeso e em 39,3 por cento dos obesos (p< 0,05); obesidade graus I, II e IIl associou-se a distúrbios ventilatórios em 56,8 por cento, 52,1 por cento e 78,1 por cento, respectivamente. A associação dos distúrbios da função pulmonar com a classe de obesidade apresentou elevada significância estatística (p < 0,00001). Sobrepeso e obesidade associaram-se com maior freqüência a distúrbios ventilatórios obstrutivos leves. O lMC e a CA correlacionaram-se a diversas medidas espirométricas, notadamente com FEF 25-75 (lMC: Pr =-0,44; p=O,OOOl e CA: Pr = -O, 45; p=O,OOOl). Conclusões: os distúrbios da função ventilatória são comuns em indivíduos com sobrepeso e obesidade. O lMC e a CA demonstraram correlação inversa com FEF 25-75 por cento sugerindo comprometimento de pequenas vias aéreas neste subrupo de indivíduos obesos.


Objective: a) To identify spirometric dysfunction in overweight and obese individuals; b) to determine the frequency and severity of ventilatory dysfunction; and ci) to correlate body mass index (BMl), abdominal circunference (AC) and hip¬waist (HW) ratio with spirometric parameters in such sample. Methods: The study was conducted on 156 sedentary asymptomatic volunteers of both sexes (32 of normal weight, 39 overweight and 85 obese), aged 15 to 51 years from an obesity outpatient clinic and from a private...


Subject(s)
Female , Adult , Angioedema , Bradykinin , Estrogens , Protein C Inhibitor , Diagnostic Techniques and Procedures , Attention , Methods
2.
Journal of Zhejiang University. Science. B ; (12): 899-905, 2006.
Article in English | WPRIM | ID: wpr-309055

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the effect of activated protein C (APC) on inflammatory responses in human umbilical vein endothelial cells (HUVEC) stimulated with lipopolysaccharide (LPS).</p><p><b>METHODS</b>The second passage of collagenase digested HUVEC was divided into the following groups: serum free medium control group (SFM control), phosphate buffer solution control group (PBS control), LPS group with final concentration of 1 microg/ml (LPS group), APC group with final concentration of 7 microg/ml, Pre-APC group (APC pretreatment for 30 min prior to LPS challenge), and Post-APC group (APC administration 30 min after LPS challenge). Supernatant was harvested at 0, 4, 8, 12 and 24 h after LPS challenge. Interleukin-6 (IL-6) and Interleukin-8 (IL-8) levels were analyzed with ELISA. Cells were harvested at 24 h after LPS challenge, and total RNA was extracted. Messenger RNA levels for IL-6 and IL-8 were semi-quantitatively determined by RT-PCR.</p><p><b>RESULTS</b>Compared with control group, IL-6 and IL-8 levels steadily increased 4 to 24 h after LPS stimulation. APC treatment could increase LPS-induced IL-6 and IL-8 production. The mRNA levels of IL-6 and IL-8 exhibited a similar change.</p><p><b>CONCLUSION</b>APC can further increase the level of IL-6 and IL-8 induced by LPS. The effect of these elevated cytokines is still under investigation.</p>


Subject(s)
Humans , Cells, Cultured , Dose-Response Relationship, Drug , Endothelial Cells , Metabolism , Enzyme-Linked Immunosorbent Assay , Gene Expression , Interleukin-6 , Metabolism , Interleukin-8 , Metabolism , Lipopolysaccharides , Pharmacology , Protein C , Physiology , Protein C Inhibitor , Pharmacology , RNA, Messenger , Metabolism , Reverse Transcriptase Polymerase Chain Reaction , Sensitivity and Specificity , Time Factors , Up-Regulation
3.
Rev. bras. alergia imunopatol ; 31(4): 128-132, jul.-ago. 2004.
Article in Portuguese | LILACS | ID: lil-506819

ABSTRACT

o angioedema hereditário (AEH) é uma patologia de curso crônico, que resulta da deficiência do inibidor de Cl (Cl-INH). Esta deficiência pode ser quantitativa (AEH tipo I) ou qualitativa (AEH tipo Ir). É caracterizado por edema recorrente, não pruriginoso, que pode acometer qualquer região do corpo: face,. laringe (levando a risco de morte por asfixia), extremidades, genitália, órgãos intra-abdominais (causando dor abdominal, vômitos, diarréia). O tratamento divide-se em profilático, a curto ou longo prazo, e sintomático, baseando-se sempre no impacto da doença na qualidade de vida e/ou risco de fatalidade para o paciente. As medicações utilizadas para uso crônico são os antifibrinolíticos e os androgênios atenuados. Estes últimos são geralmente mais eficazes. Esta revisão tem por objetivo abordar as principais opções terapêuticas para o tratamento do AEH, dando ênfase aos androgênios atenuados, que permanecem como drogas de primeira escolha pela sua eficácia e perfil de segurança. Para a realização deste artigo, foram consultadas publicações científicas nacionais e internacionais distribuídas em periódicos e livros-texto. As referências bibliográficas foram obtidas através da base de dados Pubmed, abrangendo o período de 1974 a 2007.


Hereditary Angioedema (AEH) is a long course pathology, which results from Cl-inhibitor (Cl-INH) deficiency. It can be a quantitative (AEH type I) or qualitative (AEH type Ir) deficiency. It is characterized by non-pruritic recurrent swellings in any part of the body: face, larynx (which could lead to death by asphyxia), extremities, genital area, abdominal organs (Ieading to abdominal pain, vomiting, diarrhea). Treatment is divided into prophylactic, short term or long term, and symptomatic, always based on the disease's impact on patient's quality of life and/or the risk of fatality. Medications used for long-term treatment are antifibrino/ytic agents and attenuated androgens. The latter usually are more effective. The aim of this review is to approach the main therapeutic options to be used in the treatment of AEH, emphasizing the attenuated androgens, which are still the first line option because of its efficacy and security.


Subject(s)
Humans , Male , Female , Child , Adult , Androgens , Angioedemas, Hereditary , Antifibrinolytic Agents , Protein C Inhibitor , Receptors, Androgen , Critical Pathways , Edema , Methods
4.
Braz. j. med. biol. res ; 36(8): 1055-1059, Aug. 2003. tab
Article in English | LILACS | ID: lil-340782

ABSTRACT

Human plasma kallikrein, a serine proteinase, plays a key role in intrinsic blood clotting, in the kallikrein-kinin system, and in fibrinolysis. The proteolytic enzymes involved in these processes are usually controlled by specific inhibitors and may be influenced by several factors including glycosaminoglycans, as recently demonstrated by our group. The aim of the present study was to investigate the effect of glycosaminoglycans (30 to 250 æg/ml) on kallikrein activity on plasminogen and factor XII and on the inhibition of kallikrein by the plasma proteins C1-inhibitor and antithrombin. Almost all available glycosaminoglycans (heparin, heparan sulfate, bovine and tuna dermatan sulfate, chondroitin 4- and 6-sulfates) reduced (1.2 to 3.0 times) the catalytic efficiency of kallikrein (in a nanomolar range) on the hydrolysis of plasminogen (0.3 to 1.8 æM) and increased (1.9 to 7.7 times) the enzyme efficiency in factor XII (0.1 to 10 æM) activation. On the other hand, heparin, heparan sulfate, and bovine and tuna dermatan sulfate improved (1.2 to 3.4 times) kallikrein inhibition by antithrombin (1.4 æM), while chondroitin 4- and 6-sulfates reduced it (1.3 times). Heparin and heparan sulfate increased (1.4 times) the enzyme inhibition by the C1-inhibitor (150 nM)


Subject(s)
Animals , Humans , Cattle , Factor XII , Fibrinolytic Agents , Glycosaminoglycans , Plasma Kallikrein , Plasminogen , Cysteine Proteinase Inhibitors , Plasma Kallikrein , Protein C Inhibitor
SELECTION OF CITATIONS
SEARCH DETAIL