Results 31 to 40 of about 412,844 (290)

Microfluidic sorting selects sperm for clinical use with reduced DNA damage compared to density gradient centrifugation with swim-up in split semen samples

Human Reproduction, 2018
STUDY QUESTION Does microfluidic sorting improve the selection of sperm with lower DNA fragmentation over standard density-gradient centrifugation? SUMMARY ANSWER Microfluidic sorting of unprocessed semen allows for the selection of clinically usable ...
M. Quinn, L. Jalalian, S. Ribeiro, K. Ona, U. Demirci, M. Cedars, M. Rosen   +6 more
semanticscholar   +1 more source

Different Methods for Seminal Plasma Removal and Sperm Selection on the Quality and Fertility of Collared Peccary Sperm

Animals, 2023
Methods for seminal plasma (SP) removal and the selection of collared peccary sperm for fertilization were compared. The experiments evaluated the following: the (I) impact of centrifugation for SP removal before swim-up for sperm selection and (II) a ...
Maria V. O. Santos, Andréia M. Silva, Leonardo V. C. Aquino, Lhara R. M. Oliveira, Samara S. J. Moreira, Moacir F. Oliveira, Alexandre R. Silva, Alexsandra F. Pereira   +7 more
doaj   +1 more source

Preparation of purified peste des petits ruminants (PPR) virus antigen from a local isolate of Bangladesh

Fundamental and Applied Agriculture, 2019
Peste des petits ruminants (PPR) is the number one killer disease of small ruminants. The disease causes severe losses to small ruminant production and is presently considered as one of the major threats to about 22 million small ruminant population of ...
Ashrafun Naher Luna, Fardina Sultana Sumi, Jahan Ara Begum, Md. Mushfiqur Rahman, Mohammad Rafiqul Islam, Emdadul Haque Chowdhury   +5 more
doaj   +1 more source

In vitro cultivation of rat bone marrow mesenchymal stem cells and establishment of pEGFP/Ang-1 transfection method

Asian Pacific Journal of Tropical Biomedicine, 2014
Objective: To obtain the bone marrow mesenchymal stem cells (BMSCs), complete phenotypic identification and successfully transfect rat BMSCs by recombinant plasmid pEGFP/Ang-1.
Xiu-Qun Zhang, Long Wang, Shu-Li Zhao, Wei Xu   +3 more
doaj   +1 more source

Elimination of bacteria from semen using a combination of density gradient centrifugation and swim-up

Journal of Men's Health, 2022
Background: To evaluate the efficiency of bacterial clearance of different sperm preparation procedure. Methods: A total of 46 semen samples were collected in this study, each semen sample was divided into four equal parts (0.5 mL each).
Zhiheng Chen, Lingxiao Jiang, Hui Wang, Wumin Quan, Li Yang, Chunquan Ou, Ling Sun   +6 more
doaj   +1 more source

Timing of semen cryopreservation: before or after processing? [PDF]

Revista Brasileira de Ginecologia e Obstetrícia
Objective: Seminal cryopreservation causes significant damage to the sperm; therefore, different methods of cryopreservation have been studied. The aim of the study was to compare the effects of density gradient processing and washing/centrifugation with
Ana Paula de Souza Kussler, Ivan Cunha Bustamante Filho, Elisa Negri, Edison Capp, Helena von Eye Corleta   +4 more
doaj   +1 more source

Comparison of two sperm processing techniques for low complexity assisted fertilization: sperm washing followed by swim-up and discontinuous density gradient centrifugation

JBRA Assisted Reproduction, 2016
Objective This study aimed to assess and compare sperm motility, concentration, and morphology recovery rates, before and after processing through sperm washing followed by swim-up or discontinuous density gradient centrifugation in normospermic ...
C. L. Fácio, L.F. Previato, Ligiane A Machado-Paula, P. C. Matheus, E. Araújo Filho   +4 more
semanticscholar   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Fractionating microplastics by density gradient centrifugation: a novel approach using LuerLock syringes in a low-cost density gradient maker

Chemistry Teacher International
Microplastics are now ubiquitous in the environment and are even considered “technofossils” of the Anthropocene. Given their omnipresence and potential impact, identifying and analyzing these particles becomes increasingly crucial.
Majcen Alina, Gohla Jan, Steinhoff Anna S., Meißner Lena, Tassoti Sebastian, Spitzer Philipp   +5 more
doaj   +1 more source

IMPACT OF PREPARATION USING CONVENTIONAL AND MODIFIED DENSITY GRADIENT CENTRIFUGATION METHODS ON SPERM CONCENTRATION, MOTILITY AND NUMBER OF NORMAL MOTILE SPERM RECOVERY (NMSR)

Folia Medica Indonesiana, 2017
Some preparation techniques, either conventional or advanced, have been provided. Advanced technique may overcome the limitations of conventional techniques.
Rina Yudiwati, MPBD Pramesti, Agustinus Agustinus, E Pradana, Bambang Purwanto   +4 more
doaj   +1 more source