نتایج جستجو برای: plasma membrane integrity

تعداد نتایج: 724490  

2006
Jian-hong Hu Qing-Wang Li Xiao-Yu Chen Shu-Shan Zhang Li-Qiang Wang

In order to protect the spermatozoa against cold shock, hen egg yolk is widely used as a cryoprotective agent in semen freezing extenders for domestic animals. The protective action of yolk is largely presumed to be due to low density lipoproteins (LDL). The effects of LDL on sperm quality of bull and northern pike (Esox lucius) after freezing-thawing have been reported, but no study has been m...

Journal: :Reproductive biology 2013
Bushra A Rakha Iftikhar Hussain Shamim Akhter Nemat Ullah Syed M H Andrabi Muhammad S Ansari

The Punjab Urial (Ovis vignei punjabiensis) is an endangered subspecie of ovidae, distributed as small scattered populations in the forest belt of the Himalayan foothills of Pakistan and in the areas enclosed by the Indus and the Jhelum rivers. The present study was conducted to evaluate the liquid storage of Punjab Urial spermatozoa in different extenders for use in future in situ conservation...

ژورنال: یافته 2014
خردمند, آرش , دزفولیان, امید, علیرضایی, مسعود ,

Background: The aim of this study is to survey the protective effects of betaine against cadmium and on sperm quality including progressive motility, sperm membrane integrity, concentration as well as testicular weight. Materials and Methods: Thirty adult male rats were allocated to the following three groups (n=10 in each group): control-saline, cadmium-saline and cadmium-betaine. Induction of...

2016
Mariana Andrade Torres Rommy Díaz Rodrigo Boguen Simone Maria Massami Kitamura Martins Gisele Mouro Ravagnani Diego Feitosa Leal Melissa de Lima Oliveira Bruno Bracco Donatelli Muro Beatriz Martins Parra Flávio Vieira Meirelles Frederico Ozanan Papa José Antônio Dell'Aqua Marco Antônio Alvarenga Aníbal de Sant'Anna Moretti Néstor Sepúlveda André Furugen Cesar de Andrade

Boar semen cryopreservation remains a challenge due to the extension of cold shock damage. Thus, many alternatives have emerged to improve the quality of frozen-thawed boar sperm. Although the use of seminal plasma arising from boar sperm-rich fraction (SP-SRF) has shown good efficacy; however, the majority of actual sperm evaluation techniques include a single or dual sperm parameter analysis,...

Journal: :Reproductive biology 2010
Muhammad S Ansari Bushra A Rakha Syed M H Andrabi Shamim Akhter

This experiment was designed to compare powdered egg yolk with fresh egg yolk in an extender for cryopreservation of Zebu bull semen. Sperm motility, plasma membrane integrity and viability were assessed at different stages of cryopreservation (post-dilution, pre-freezing and post-thawing). Sperm plasma membrane integrity remained similar at all the stages of cryopreservation. Sperm motility an...

2015
José Manuel Molina-Guijarro Carolina García Álvaro Macías Luis Francisco García-Fernández Cristina Moreno Fernando Reyes Juan Fernando Martínez-Leal Rogelio Fernández Valentín Martínez Carmen Valenzuela M. Pilar Lillo Carlos M. Galmarini Hiroyasu Nakano

Plasma membrane integrity is essential for cell life. Any major break on it immediately induces the death of the affected cell. Different molecules were described as disrupting this cell structure and thus showing antitumor activity. We have previously defined that elisidepsin (Irvalec®, PM02734) inserts and self-organizes in the plasma membrane of tumor cells, inducing a rapid loss of membrane...

Journal: :Cell 2017
Yi-Nan Gong Cliff Guy Hannes Olauson Jan Ulrich Becker Mao Yang Patrick Fitzgerald Andreas Linkermann Douglas R. Green

The activation of mixed lineage kinase-like (MLKL) by receptor-interacting protein kinase-3 (RIPK3) results in plasma membrane (PM) disruption and a form of regulated necrosis, called necroptosis. Here, we show that, during necroptosis, MLKL-dependent calcium (Ca2+) influx and phosphatidylserine (PS) exposure on the outer leaflet of the plasma membrane preceded loss of PM integrity. Activation ...

Esmaeili V Rastegarnia AR Rezaei Topraggaleh T, Shafiepour V Shahverdi AH Sharbatoghli M

Background: Artificial insemination (AI) has been used for increasing genetic potential of animals in production while application of AI has been restricted in buffalo due to low freezing ability and fertility of frozen-thawed buffalo spermatozoa. So improvement in buffalo sperm cryopreservation may enhance the breeding programs of this valuable farm animal. Semen processing is one of the major...

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