نتایج جستجو برای: chromomycin a3

تعداد نتایج: 7508  

Abbas Kiani Maryam Arbabian Marziyeh Tavalaee Mohammad Hossein Nasr Esfahani, Mohammad Reza Deemeh

Background Flow cytometry (FCM) has been extensively used to study mammalian sperm in the areas of clinical andrology and reproductive toxicology. FCM provides a powerful advantage over microscopy technique in terms of rapid accurate and reproducible technology for the quantification of various cell characteristics including chromatin status. During spermiogenesis histones are replaced by prota...

Journal: :Nagoya journal of medical science 1973
T Kondo H Ichihashi Y Shizu Y Momoi Y Kawashima

The effects of treatment with various doses of carcinostatic agents on tumor growth have been studied. In animal experiments. treatment with low concentrations of nitrogen mustard N-oxide resulted in an early death of mh:e bearing Ehrlich ascites carcinoma and an increase in the number of circulating Yoshida sarcoma cells. The growth of subcutaneously implanted Yoshida sarcoma was stimulated af...

Journal: :International journal of andrology 2007
Ali Reza Talebi Mohammad Ali Khalili Ahmad Hossaini

Infertility is considered as one of the major problems associated with spinal cord injury (SCI). However, the exact underlying mechanism is still unknown. Therefore, the main objective of this experimental study was to evaluate the effect of chronic SCI on sperm parameters as well as chromatin integrity and DNA of spermatozoa aspirated from cauda epididymis of rats. Forty-five adult Wistar rats...

2009
Masashi Yamamoto

The application of staining with the guanine-cytosine specific fluorochrome chromomycin A3 (CMA) of citrus chromosomes to genetic studies is reviewed. When CMA staining is performed, the existence of characteristic CMA banding patterns with high levels of diversity and heterozygosity in citrus chromosomes is demonstrated. Similar CMA banding patterns have been observed in related species. Thus,...

2012
Elham Aliabadi Malek Soleimani Mehranjani Zahra Borzoei Tahereh Talaei-Khozani Hossein Mirkhani Hamed Tabesh

BACKGROUND Sperm cells extracted from testes (TESE) have poor chromatin quality and motility. Various substances are used in the laboratory to increase sperm motility and improve the ART outcomes; however, there are few research which considered improving both sperm motility and chromatin quality. OBJECTIVE The aim of this investigation was to evaluate the improvement of the testicular sperm ...

Journal: :Journal of clinical pathology 1986
S K Juneja I A Cooper G S Hodgson M M Wolf J C Ding P N Ironside R J Thomas J D Parkin

Flow cytometry studies for cellular DNA analysis were performed in 115 cases of non-Hodgkin's lymphoma, 53 of which had not received any prior chemotherapy or radiotherapy. DNA content was measured in ethanol fixed cells stained with chromomycin A3. According to the criteria of the International Working Formulation there were 43 low grade, 58 intermediate grade, and eight high grade lymphomas; ...

2016
Ali Reza Talebi Farzaneh Fesahat Esmat Mangoli Jalal Ghasemzadeh Maryam Nayeri Fatemeh Sadeghian-Nodoshan

BACKGROUND Etiology of more than half of Recurrent Spontaneous Abortion. The etiology of more than 50 percent of Recurrent Spontaneous Abortions (RSA) cases has been remained unexplained. It is supposed that RSA may have "paternal effect" due to supply 50% of embryonic genomic content by male gamete. OBJECTIVE The aim of present study was to evaluate the role of sperm apoptosis and protamine ...

2014
Katarzyna Andraszek Dorota Banaszewska Magdalena Czubaszek Ewa Wójcik Małgorzata Szostek

Morphological analysis of semen is a very important step in fertility assessment, but many semen defects are not detectable at the morphological level. These include pathological changes in sperm chromatin structure. During mammalian spermiogenesis, histone proteins associated with DNA structure are replaced by specific protamines, with which chromatin does not form nucleosomal complexes. In th...

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