Effect of development and aging on the response of canine lymphocytes to phytohemagglutinin.

نویسندگان

  • J D Gerber
  • A L Brown
چکیده

The stage of development and age were found to effect the responsiveness of dog T-lymphocytes to phytohemagglutinin. T-lymphocytes from beagles 0 to 4 weeks of age showed significantly less response to phytohemagglutinin (P < 0.001) than T-lymphocytes from these same dogs at 6 to 12 weeks of age. Peak response to phytohemagglutinin occurred between 6 weeks to 6 months of age, after which there was a significant correlation (P < 0.02) between increase in age and decrease in phytohemagglutinin responsiveness.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Effects of Gamma Irradiation on Proliferation and IL-5 Production of Peripheral Blood Lymphocytes

Gamma irradiation is routinely used for suppression of lymphocyte function in transfusion and transplantation procedures. In recent years, some investigators focused on the effects of ionizing radiation on special aspects of lymphocyte function and considered the possibility of its clinical application for treatment of some immunological disorders. In this study, we evaluated the effects of fiv...

متن کامل

Proliferate Resonse to Purified Bordetella pertussis Toxin on Murine Spleen Lymphocytes

A purification procedure of pertussis toxin (PT) from submerged culture of Bordetella pertussis (B.pertussis) strain 134 using adsorption and affinity chromatography was discussed. The yield of the resulting PT was approximately 37.5mg/l of concentrated culture supernatant. The polypeptide pattern of the purified PT was investigated by SDS-PAGE and showed five bands between 11 to 26 KDa using l...

متن کامل

Investigation Germination Characteristics of Wheat (Triticum aestivum L., cv. Chamran) in Response to Seed Aging

BACKGROUND: Seed aging is an important problem in developing countries which seeds stored in inappropriate condition. OBJECTIVES: Current research was carried out to study the effect of seed aging on quantitative parameters of wheat seeds (Chamran cultivar). METHODS: Experiment was carried out based on randomized complete block desi...

متن کامل

Immunohistochemical evaluation of lymphocyte types infiltrate into the canine seminomas

BACKGROUNDS: Seminoma is frequently observed in human and canine testes especially in cryptorchids. Canine and human seminomas are typically associated with leukocytic infiltration. OBJECTIVES: We aimed to identify the type of lymphocytes that infiltrate to seminomas. METHODS: Tumor infiltrating lymphocytes were evaluated by immunohistological techniques in 5 dogs with diffuse seminoma. Routine...

متن کامل

The Influence of Iron Loading and Iron Chelation on the Proliferation and Telomerase Activity of Human Peripheral Blood Mononuclear Cells

Background: Iron is an essential trace element in cell proliferation. Several investigations demonstrate that iron deprivation inhibits cell proliferation. However, the impact of iron on telomerase activity of activated lymphocytes remains unexplained to date. Objective: In this study, the effect of iron on the proliferation and telomerase activity of lymphocytes stimulated by phytohemagglutini...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Infection and immunity

دوره 10 4  شماره 

صفحات  -

تاریخ انتشار 1974