نتایج جستجو برای: sperm characterization

تعداد نتایج: 410142  

2015
Amir Abramovich Alexander Shulzinger

A spectroscopic method for human sperm evaluation and characterization using Fourier Transform Infra Red (FTIR) is presented. The high sensitivity of FTIR to changes in chemical structure and arrangement of molecules and proteins makes it a powerful diagnostic tool. Our experimental results show that a simple MIR (400 cm−1 4000 cm−1) transmission spectrum of a human sperm is very fast and can b...

2012
Pinki Nandi Swatilekha Ghosh Kuladip Jana Parimal C. Sen

Mammalian sperm capacitation is an essential prerequisite to fertilization. Although progress is being made in understanding the physiology and biochemistry of capacitation, little has been yet explored about the potential role(s) of individual sperm cell protein during this process. Therefore elucidation of the role of different sperm proteins in the process of capacitation might be of great i...

Journal: :Metal-Based Drugs 2000
Taruna Pandey R. V. Singh

Biochemical aspects, synthesis and characterization of some boron complexes of 2-hydroxy-N-phenylbenzamide (HOPhBenz) and its semicarbazone (HOPhBenz.SCZH) and thiosemicarbazone (HOPhBenz.TSCZH) are described. These derivatives were prepared by the reactions of 2-isopropoxy-4-methyl-1,3,2-dioxaborolane, and 2-isopropoxy-4-methyl-1,3,2-dioxaborinane with 2-hydroxy-N-phenylbenzamide, 1-[(2-hydrox...

2015
Maria Antonietta Ferrara Giuseppe Di Caprio Stefano Managò Annalisa De Angelis Luigi Sirleto Giuseppe Coppola Anna Chiara De Luca Andrew M. Shaw

A full label-free morphological and biochemical characterization is desirable to select spermatozoa during preparation for artificial insemination. In order to study these fundamental parameters, we take advantage of two attractive techniques: digital holography (DH) and Raman spectroscopy (RS). DH presents new opportunities for studying morphological aspect of cells and tissues non-invasively,...

2015
Z. Abdel-Salam M.A. Harith

This article presents a brief review of the past and present literature pertinent to laser effects on sperm motility parameters, improvement of oocyte maturation and characterization of semen in livestock. The aim was, on one hand, to make the readers aware of such knowledge and on the other hand to trigger the interest of the animal reproduction scientific community in attempting some laser te...

2017
Kay W. Chow Daryl Preece Veronica Gomez-Godinez Michael W. Berns

Red light has been shown to increase sperm swimming speeds, but there is little characterization of its effect on DNA or swimming force. In this study 633nm laser light irradiation did not induce significant levels of oxidative DNA damage. OCIS codes: (000.1430) Biology and medicine, (350.4855) Optical tweezers or optical manipulation

2006
Usha Natraj

The mammalian estrogen induced oviductal glycoprotein (OGP) has been known to associate with capacitated sperm, oocytes and developing embryos. This study aimed to identify the putative binding partner of OGP on gametes using N-terminal peptide of bonnet monkey (Macaca radiata) OGP, Nmon, as bait. A protein(s) of molecular size ~54 kDa was detected by farwestern blot analysis of detergent solub...

2013
Ali Ashrafzadeh Sheila Nathan Saiful Anuar Karsani

The fertility of zebu cattle (Bos indicus) is higher than that of the European purebred (Bos taurus) and crossbred (Bos taurus × Bos indicus) cattle in tropical areas. To identify proteins related to the higher thermo-tolerance and fertility of Zebu cattle, this study was undertaken to identify differences in sperm proteome between the high fertile Malaysian indigenous zebu cattle (Kedah Kelant...

Journal: :Journal of cell science 1996
P Kaldis M Stolz M Wyss E Zanolla B Rothen-Rutishauser T Vorherr T Wallimann

The creatine kinase (CK) isoenzyme system is essential for motility in rooster and sea urchin sperm. In the present study, biochemical characterization as well as immunofluorescence and confocal laser microscopy with highly specific antibodies against various chicken CK isoenzymes revealed that cytosolic brain-type CK isoenzyme (B-CK) is the only CK isoenzyme in rooster seminal plasma, while th...

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