نتایج جستجو برای: killer cells

تعداد نتایج: 1392378  

Journal: :iranian journal of immunology 0
abdolkarim sheikhi departments of immunology hossein b. ganji and anatomy, school of medicine, zanjan university of medical sciences, zanjan, iran razieh sheikhi department of environmental health, faculty of health sciences, tehran university of medical sciences, tehran, iran

background: uterine natural killer (unk) cells are the most abundant leukocytes in pre-implantation endometrium and early pregnancy deciduas in humans and rodents. they are associated with structural changes in maternal spiral arteries but regulation of their re-cruitment and activation is incompletely understood. the major subpopulation of unk cells in humans expresses cd56, the neural cell ad...

شادمان, مجتبی, عجمی, بوالقاسم , مثالی, حمیده, تقوایی, ترنگ, حسین نتاج, هادی, حسینی, وحید , رفیعی, علیرضا, طهرانی, محسن ,

Background and purpose: The aim of this study was to compare the proportion of natural killer (NK) and natural killer T (NKT)-like cells in dyspeptic disorders caused by Helicobacter pylori (H. pylori). Materials and methods: In a case-control study, 27 patients with gastric cancer (GC), 25 patients with peptic ulcer (PUD), and 22 patients with non-ulcer dyspepsia (NUD) were enrolled. After en...

Journal: :iranian journal of allergy, asthma and immunology 0
mojtaba shadman department of immunology, school of medicine, mazandaran university of medical sciences, sari, iran. zeinab rajabian department of immunology, school of medicine, mazandaran university of medical sciences, sari, iran. abolghasem ajami department of immunology, school of medicine, mazandaran university of medical sciences, sari, iran and molecular and cell biology research center, mazandaran university of medical sciences, sari, iran. hadi hussein-nattaj department of immunology, school of medicine, mazandaran university of medical sciences, sari, iran. alireza rafiei department of immunology, school of medicine, mazandaran university of medical sciences, sari, iran and molecular and cell biology research center, mazandaran university of medical sciences, sari, iran. vahid hosseini inflammatory diseases of upper gi tract research center, imam hospital, mazandaran university of medical sciences, sari, iran.

to clarify the effect of γδ t cells and invariant natural killer t (inkt) cells in pathophysiology of dyspeptic disorders, number of these two cells in patients with non-ulcer dyspepsia (nud), peptic ulcer disease (pud), and gastric cancer (gc) were compared.patients with dyspepsia were divided into three groups of nud, pud, and gc according to their endoscopic and histopathological examination...

سجادی, مهرداد , طوبایی, شهین, قادری, عباسعلی ,

Objectives: the purpose of the present study was to examine the relationship between natural killer cells and the clinical trend of depression before and after treatment. Methods: the subjects were 15 patients diagnosed with primary major depression, and 15 non-patients selected from among medical students and laboratory staff, matched in terms of age and sex. In the patient group, 6 out of 15 ...

آذرفام, پروین, تقی زاده, صغری, حسین پور فیضی, محمد علی, منتظری, وحید, پولادی, ناصر,

Introduction: Immunological processes play an important role in recurrent spontaneous abortion(RSA). According to studies, T lymphocytes and natural killer cells(NK cells) are two effective cell groups in RSA. The aim of this study was to study the percentage and absolute number of natural killer(NK) cells in women with RSA of unknown etiology. Methods: A total of 24 women with history of recu...

Journal: :Current Biology 1999

بهار آرا, جواد, حسینی پور, زهرا, راستین, مریم, شیخ, اکرم, طبسی, نفیسه, لطفی, نوشین, محمودی, محمود, مزینی, رویا, موسوی فر, نزهت,

Introduction: Immunological processes are most important in recurrent spontaneous abortion(RSA). According to studies T lymphocytes and natural killer cells(NK cells) are two effective cell groups in RSA. The aim of this study was to investigate the percentage and absolute number of natural killer(NK) cells in women with RSA with unknown etiology. Methods: 24 Women with a history of recurrent ...

Journal: :iranian journal of immunology 0
raja rajalingam ucla immunogenetics center, department of pathology and laboratory medicine, david geffen school of medicine, university of california at los angeles

natural killer (nk) cells are a subset of lymphocytes which play a crucial role in early innate immune response against infection and tumor transformation. furthermore, they secrete interferon-γ (ifn-γ) and tumor necrosis factor (tnf) prompting adaptive immu-nity. nk cells distinguish the unhealthy cells from the healthy ones through an array of cell-surface receptors. human nk cells use inhibi...

Journal: : 2021

The immune system of 90-day old piglets SM-1 Novosibirsk breed depends on sex and stress-reactivity. Stress-reactivity was measured using halothane test. immunologic testing performed 30 days after weaning. Our results show that overall piglet demonstrated high proliferative activity T- B- immunocompetent cells with active formation mature T-and B-lymphocytes did not signs immunosuppression. Co...

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