다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

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It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies as they are introduced in the detection, management,

/pdf/acc-aha-2006-guidelines-for-the-management-of-patients-with-27qfh9fc7i.pdf

ACC/AHA 2006 Guidelines for the Management of Patients With Valvular Heart Disease

Interleukin-10 (IL-10), first recognized for its ability to inhibit activation and effector function of T cells, monocytes, and macrophages, is a multifunctional cytokine with diverse effects on most hemopoietic cell types. The principal routine function of IL-10 appears to be to limit and ultimately terminate inflammatory responses. In addition to these activities, IL-10 regulates growth and/or differentiation of B cells, NK cells, cytotoxic and helper T cells, mast cells, granulocytes, dendritic cells, keratinocytes, and endothelial cells. IL-10 plays a key role in differentiation and function of a newly appreciated type of T cell, the T regulatory cell, which may figure prominently in control of immune responses and tolerance in vivo. Uniquely among hemopoietic cytokines, IL-10 has closely related homologs in several virus genomes, which testify to its crucial role in regulating immune and inflammatory responses. This review highlights findings that have advanced our understanding of IL-10 and its receptor, as well as its in vivo function in health and disease.

Interleukin-10 and the interleukin-10 receptor.

Prospective Cohort Study

Expert Panel Report 2: Guidelines for the Diagnosis and Management of Asthma

Human thymus-leukemia-associated antigen (HThy-L), a saline-soluble antigen, was previously detected by immunodiffusion (but not on the cell surface) in significant quantity in extracts of normal thymocytes, cells from cultured T-cell lines, and erythrocyte-rosette-positive leukemia blasts. Two species of HThy-L were identified and isolated from normal human thymus tissue after extraction in tris buffer, ammonium sulfate fractionation, acid precipitation of inactive fractions, DEAE-cellulose (DE-52) chromatography, Sephadex G-100 gel filtration, and carboxymethyl-cellulose (CM-52) chromatography; On Sephadex G-100, both HThy-L species had a similar molecular weight (40,000--50,000), but they eluted in different positions on DE-52 and CM-52. Analysis by sodium dodecyl sulfate polyacrylamide gel electrophoresis showed that each of the 2 HThy-L species contained 2 components with molecular weights of approximately 43,000 and 23,000. Further purification of HThy-L on Sephadex G-50 showed that the 43,000-dalton component possessed HThy-L activity.

Human Thymus-Leukemia-Associated Antigen: Isolation and Partial Characterization

Essential fatty acids and iron are involved at distinct stages of the proliferative cycle but not in the activation of human T cells.

Background: Patients, especially young children, with atopic dermatitis are at an increased risk of developing eczema vaccinatum, a severe reaction to the smallpox vaccine, either t

/pdf/susceptibility-to-vaccinia-virus-infection-and-spread-in-4yuz49jgiy.pdf

Susceptibility to Vaccinia Virus Infection and Spread in Mice Is Determined by Age at Infection, Allergen Sensitization and Mast Cell Status

Short-term treatment of normal human B lymphocytes with low concentrations of papain resulted in selective and reversible removal of sIgD determinants, whereas HLA and Ia-like antigens, sIgM as well as receptors for E, C3, and FcIgG were unaffected. When studied for their capacity to generate antigen-specific direct PFC, papain-treated (δ-) B cells were highly sensitive to inactivation by even low concentrations of antigen. In addition, these cells were impaired in their ability to cooperate normally with T-helper cells or their humoral product(s).

Role of Surface IgM and IgD in the Functional Differentiation of Human B Lymphocytes: Effect of Papain Treatment

Specific in vitro plaque-forming cell (PFC) responses of normal human lymphocytesare antigen dose-dependent, with bell-shaped dose response patterns. Both the bell-shaped antigen dose response characteristics as well as optimal PFC responseamplitudes are dictated by two distinct and separable T lymphocyte subpopulationswhich act on a nonlimiting set of PFC precursor B cells. Specific theophylline-sensitive suppressor and theophylline-resistant helper T cells are activated by antigen in adose-dependent fashion. The initially small suppressor cell pool expands exponentially following antigen contact, whereas the larger helper cell population does not. This leaves a restricted range of antigen concentrations where net helper activity issufficient to promote a PFC response. Due to coinduced suppressor activity, PFCresponses showed an overall negative restraint at all antigen concentrations. Limitingdilution analysis suggested that it is the numerical balance between the two alternative T cell subsets which determines the extent of this negative restraint. These datadelineate a cellular mechanism for the translation of an antigenic stimulus into a B cellantibody response; theophylline-sensitive suppressor cells are able to expand inresponse to this stimulus and represent the main regulative vector. Thus, in mixedlymphocyte populations, antigen concentration is a valuable probe for studies of thebalance of discrete T cell subpopulations but not for absolute B cell responsiveness.

Erwin W. Gelfand

Papers

Human Thymus-Leukemia-Associated Antigen: Isolation and Partial Characterization

Essential fatty acids and iron are involved at distinct stages of the proliferative cycle but not in the activation of human T cells.

Susceptibility to Vaccinia Virus Infection and Spread in Mice Is Determined by Age at Infection, Allergen Sensitization and Mast Cell Status

Role of Surface IgM and IgD in the Functional Differentiation of Human B Lymphocytes: Effect of Papain Treatment

Regulation of the specific plaque-forming cell response in man: restraint of B cell responsiveness.