نتایج جستجو برای: telomere

تعداد نتایج: 12402  

Journal: :gene, cell and tissue 0
ebrahim eskandari-nasab genetic of non-communicable disease research center, zahedan university of medical sciences, zahedan, ir iran fatemeh dahmardeh department of biology, faculty of sciences, university of zabol, zabol, ir iran alireza rezaeifar department of clinical biochemistry, school of medicine, zabol university of medical sciences, zabol, ir iran; department of clinical biochemistry, school of medicine, zabol university of medical sciences, zabol, ir iran. tel: +98-5432253535, fax: +98-5432253537 tayebeh dahmardeh department of biology, faculty of sciences, ferdowsi university of mashhad, mashhad, ir iran

conclusions since telomerase is expressed in 90% of cancer cells, its inhibition can be considered as a goal of cancer treatment. results about 90% of cancers need a high level of this enzyme to continue cell multiplication. since this enzyme set is absent in normal cells, or present at a very low level, use of telomerase inhibitors cannot have significant effects on normal cells. evidence acqu...

Journal: :avicenna journal of medical biotechnology 0

background: limited resources for adult stem cells necessitate their in vitro culture prior to clinical use. investigating mitochondrial dna (mtdna) and telomere shortening has proved to be important indications of stem cell validity. this study was designed to investigate these indicators in multiple passages of three adult stem cell lines which were produced in our stem cell laboratory. metho...

Fallah Huseini , H , Hedayati , M , Hovanloo , F , Teimourian , M ,

Background: Exercise and consumption of green tea affect the aging process. However, the effect of exercise training combined with green tea extract on leukocyte telomere length, quality of life (QoL) and body composition in aging has so far been unclear and inconsistent. Objective: The aim of the present study was to determine the effectiveness of aerobic training intervention and green tea e...

Journal: :international journal of hematology-oncology and stem cell research 0
hamidollah ghaffari hematology- oncology and stem cell transplantation research center, tehran university medical sciences, tehran, iran abdol h. jamialahmadi hematology- oncology and stem cell transplantation research center, tehran university medical sciences, tehran, iran nilofar shayan-asl hematology- oncology and stem cell transplantation research center, tehran university medical sciences, tehran, iran kamran alimoghaddam hematology- oncology and stem cell transplantation research center, tehran university medical sciences, tehran, iran ardeshir ghavamzadeh hematology- oncology and stem cell transplantation research center, tehran university medical sciences, tehran, iran

introduction: the telomeric dna together with its associated  proteins protects the chromosome ends from degradation or aberrant recombination. telomerase and telomere are closely associated with  development of cancers. in this study we aim to investigate the significance of telomerase activity (ta) and telomere length (tl) in patients with acute promyelocytic leukemia (apl). methods: peripher...

Journal: :iranian journal of basic medical sciences 0
abdorrahim absalan department of clinical biochemistry, faculty of medical sciences, tarbiat modares university, tehran, iran seyed alireza mesbah-namin department of clinical biochemistry, faculty of medical sciences, tarbiat modares university, tehran, iran taki tiraihi department of anatomical sciences, faculty of medical sciences, tarbiat modares university, tehran, iran taher taheri shefa neuroscience research center, khatam alanbia hospital, tehran, iran

objective(s): to investigate the effect of cinnamaldehyde and eugenol on the telomere-dependent senescence of stem cells. in addition, to search the probable targets of mentioned phytochemicals between human telomere interacting proteins (tips) using in silico studies. materials and methods: human adipose derived stem cells (hascs) were studied under treatments with 2.5 µm/ml cinnamaldehyde, 0....

Khosrow Ebrahim, Saeedreza Noorimofrad,

Introduction: Telomeres are DNA portions that are located on the two ends of the chromosome. Telomeres play an important role in cellular life. Exercise is one of the factors that contributes to their control. The purpose of the present study was to investigate the effect of 8 weeks of high intensity interval training (HIIT) on telomere length and telomerase activity in non-athletic young men. ...

Objective(s): To investigate the effect of cinnamaldehyde and eugenol on the telomere-dependent senescence of stem cells. In addition, to search the probable targets of mentioned phytochemicals between human telomere interacting proteins (TIPs) using in silico studies. Materials and Methods: Human adipose derived stem cells (hASCs) were studied under treatments with 2.5 µM/ml cinnamaldehyde, 0....

J J Bevelacqua J Welsh M Keshavarz, S A R Mortazavi, S M J Mortazavi,

Telomere length and stability is a biomarker of aging, stress, and cancer. Shortening of telomeres and high level of DNA damages are known to be associated with aging. Telomere shortening normally occurs during cell division in most cells and when telomeres reach a critically short length, DNA damage signaling and cellular senescence can be triggered. The induction of an adaptive response by sp...

Journal: :journal of basic research in medical sciences 0
behzad saki tehran khosro ebrahim tehran amir hossein abedy yekta tehran

introduction: telomeres are repetitive sequences of ttaggg section that find at two ends of eukaryotic chromosomes and they shield chromosome ends. telomere shortening in patients with myocardial infarction has been reported. shelterin complex's role is essential in telomere length regulation. telomeric repeat binding factors 1 and 2 (trf1 and trf2) are the most important sheltrein complex...

Introduction: Telomeres are repetitive sequences of TTAGGG section that find at two ends of eukaryotic chromosomes and they shield chromosome ends. Telomere shortening in patients with myocardial infarction has been reported. Shelterin complex's role is essential in telomere length regulation. Telomeric repeat binding factors 1 and 2 (TRF1 and TRF2) are the most important sheltrein complex pr...

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