نتایج جستجو برای: chromomycin

تعداد نتایج: 279  

2011
David Hess Peter Klüfers

The title compound, C(6)H(12)O(5), is the α-pyran-ose form of the reducing aldose 2-de-oxy-d-arabino-hexose. The six-membered pyran-ose ring adopts a (4)C(1) conformation, with the anomeric hy-droxy group in axial and the other substituents in equatorial positions. In the crystal, each of the four hy-droxy groups acts as an inter-molecular hydrogen-bond donor function, resulting in a three-dime...

Journal: :Journal of cell science 1998
R Rzepecki S S Bogachev E Kokoza N Stuurman P A Fisher

A 32P-labeling strategy was developed to study the interaction(s) in tissue culture cells between proteins and nucleic acids. Interphase and mitotic nuclear lamins were studied in Drosophila Kc cells. After bromodeoxyuridine incorporation and in vivo photo-crosslinking with 366 nm light, it was found that interphase lamins were associated with nucleic acid. Interactions with DNA as well as RNA ...

Journal: :international journal of fertility and sterility 0
mohammad hossein nasr-esfahani roshanak aboutorabi shahnaz razavi

background: chromomycin a3 (cma3) staining has been used to assess protamine deficiency. the aim of this study was to determine credibility of cma3 along with semen parameters for assessment of fertility potential. materials and methods: semen analysis and cma3 staining were carried out on 234 fertile and 178 subfertile individuals. semen analysis was assessed according to who criteria. protami...

2012
Edson Lourenço da Silva Rafael Splendore de Borba Liano Centofante Carlos Suetoshi Miyazawa Patrícia Pasquali Parise-Maltempi

Thoracocharax stellatus (Characiformes, Gasteropelecidae) is a small Neotropical species of fish, widely distributed in several rivers of South America. Evidence for karyotype heteromorphysm in populations from different geographical regions has been reported for this species. In this way, populations of Thoracocharax stellatus from the Paraguay River basin were cytogenetically characterized an...

2013
Esmat Mangoli Ali Reza Talebi Morteza Anvari Majid Pourentezari

BACKGROUND Diabetes mellitus (DM), primary or idiopathic is a chronic disorder of the carbohydrate, lipid and protein metabolism. DM may impact male reproductive function at several levels. It is shown that DM has detrimental effects on sperm parameters in human and experimental animals. OBJECTIVE The aim of this study was to observe the effects of diabetes on sperm parameters (viability, cou...

Journal: :Molecular biology of the cell 2008
Beth A Rasala Corinne Ramos Amnon Harel Douglass J Forbes

Assembly of the nuclear pore, gateway to the genome, from its component subunits is a complex process. In higher eukaryotes, nuclear pore assembly begins with the binding of ELYS/MEL-28 to chromatin and recruitment of the large critical Nup107-160 pore subunit. The choreography of steps that follow is largely speculative. Here, we set out to molecularly define early steps in nuclear pore assemb...

Journal: :Romanian journal of morphology and embryology = Revue roumaine de morphologie et embryologie 2011
M R Sadeghi N Lakpour H Heidari-Vala Mahshid Hodjat N Amirjannati H Hossaini Jadda Sima Binaafar M M Akhondi

This study was done to evaluate the effect of sperm source on chromatin integrity and ICSI outcomes. One hundred and thirteen samples containing epididymal aspirates of 57 obstructive azoospermic men and 56-ejaculated semen of normozoospermic men were included in this study. Sperm chromatin status was evaluated by Chromomycin A3 (CMA3), Aniline Blue (AB) and Toluidine Blue (TB). Fertilization r...

Journal: :Asian journal of andrology 2010
Charoenchai Chiamchanya Nattpawit Kaewnoonual Pachara Visutakul Sirikul Manochantr Jirattikan Chaiya

Semen samples collected from 28 male partners of infertile couples were divided into three equal aliquots and prepared with three selected media, such as PureSperm (Nidacon, Gothenburg, Sweden), Sil-Select Plus (Fertipro, Beernem, Belgium) and SpermGrad (Vitrolife, Gothenburg, Sweden). The differences in mean percentages of semen parameters were assessed by repeated measures analysis. Correlati...

2012
Chun-Wei Hsu Show-Mei Chuang Wen-Ling Wu Ming-Hon Hou

Chromomycin A3 (Chro) is capable of forming a stable dimeric complex via chelation with Ni(II), Fe(II) and Co(II). According to the circular dichroism study, the dimer conformations are significantly different among the Fe(II)-, Co(II)-, and Ni(II)-containing dimeric Chro complexes; however, the dimer conformations were preserved at high temperatures. Furthermore, we conducted a systematic stud...

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