Navigation Links
First 3-D movies of living sperm
Date:2/11/2014

into two beams. They transmitted one beam through a dish containing live, swimming sperm cells and then recombined it, after magnification through a microscope, with the second beam.

"The superimposed beams generate an interference pattern that we can record on camera," Di Caprio explained. "The resulting image is a hologram containing information relative to the morphologies of the sperm and their positioning in three-dimensional space. Viewing a progressive series of these holograms in a real-time video, we can observe how the sperm move and determine if that movement is affected by any abnormalities in their shape and structure."

Di Caprio says that the 3-D imaging technique, known formally as digital holographic microscopy (DHM), yields morphology and motility data on sperm consistent with that found in previous studies, but with the unprecedented bonus of seeing cause and effect relationships between the two.

"For example," Di Caprio said, "we found that most of the sperm cells we observed swim along in one plane as expected. However, with the more detailed analysis provided by DHM, we also were able to show that this 'in-plane' movement which we believe is linked to higher potential for fertilitydoes not occur when there are morphological anomalies such as sperm with misshapen heads or 'bent tails.'"

Now that the efficiency of sperm tracking via DHM has been demonstrated, Di Caprio says that the international research team will next attempt to exploit its capabilities for defining the best-quality sperm for IVF.

"In one future experiment, we want to study sperm cells with vacuolesenclosed compartments filled with water plus organic and inorganic moleculesthat rest on the cell surface," he said. Using DHM to assess the affected sperms' motility, the team can determine if having vacuoles results in reduced fertility.

Di Caprio says that the long-term goal of such experiments and others using the new track
'/>"/>

Contact: Angela Stark
astark@osa.org
202-416-1443
The Optical Society
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Nanomotors are controlled, for the first time, inside living cells
2. Intervention in first 1,000 days vital to fulfilling childhood potential
3. Where do lizards in Qatar live? First distribution maps for the state
4. First live births with a novel simplified IVF procedure
5. Finding Israels first camels
6. CU-Boulder researchers sequence worlds first butterfly bacteria, find surprises
7. Blood and lymphatic capillaries grown for the first time in the lab
8. Asias first under-1-roof Nutritional Research Centre set up in Singapore
9. War on lionfish shows first promise of success
10. McClelland and Spelke awarded first NAS Prizes in psychological and cognitive sciences
11. First comprehensive test to detect genetic modification in food
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
First 3-D movies of living sperm
(Date:7/24/2014)... the product of 3.5 billion years of evolutionary trial ... life. But it may be reaching a tipping point. ... analysis of data published in Science , an ... decline of animals is contributing to what appears to ... biological extinction event. , Since 1500, more than 320 ...
(Date:7/24/2014)... has developed a new nanoscale agent for imaging the ... the function and properties of the GI tract in ... of gut diseases. , Illnesses such as ... bowel disease all occur in the intestine and can ... such as diabetes and Parkinson,s. , Until now, ...
(Date:7/24/2014)... have similar counterparts in humans, affect the connections between ... into the hippocampus, an area of the brain that ... creation of memories. The results of the study have ... Brain function depends on the active communication between nerve ... woven together into a dense network where they constantly ...
Breaking Biology News(10 mins):Stanford biologist warns of early stages of Earth's 6th mass extinction event 2Stanford biologist warns of early stages of Earth's 6th mass extinction event 3New imaging agent provides better picture of the gut 2A protein couple controls flow of information into the brain's memory center 2A protein couple controls flow of information into the brain's memory center 3A protein couple controls flow of information into the brain's memory center 4
... from smart phones to SUVs are starting to design ... for an often troublesome life after the consumer, according ... (C&EN), ACS, weekly newsmagazine. The cover story ... product stewardship, an increasingly popular approach to environmental protection ...
... of Standards and Technology (NIST) is working with the ... emergency first responders in the delicate and potentially critical ... project, dubbed "Operation Vigilant Sample," seeks to coordinate training ... federal levels based on newly developed sample collection protocols. ...
... A signaling system in the brain previously shown to ... illness, according to research conducted at Oregon Health & ... is particularly meaningful because it implies that a new ... reverse the inactivity and exhaustion brought on by acute ...
Cached Biology News:Operation Vigilant Sample: First responder training for suspicious powders 2Scientists identify what makes us feel 'bad' when we're sick, how to treat it 2
(Date:7/24/2014)... Engineering at the University of Delaware, is known ... energy engineering, environmental sustainability and electronics. , His ... with a well-defined, crystalline structure. At the atomic ... that zeolites can separate molecules with size differences ... of a nanometer), making them useful to the ...
(Date:7/24/2014)... Research and Markets has announced ... 2014-2018" report to their offering.  ... the in vitro growth of plant or animal cells ... biopharmaceutical production. Cell culture is a crucial step in ... cell culture consumables are necessary for the in vitro ...
(Date:7/24/2014)... California (PRWEB) July 24, 2014 ... to advances in modeling lithium-ion battery storage capacity. ... benefit from a theoretical model created at ... University that predicts how carbon components will ... energy storage emphasizes the urgent need for higher-performance ...
(Date:7/24/2014)... 24, 2014  CorMedix Inc. (NYSE MKT: CRMD), ... therapeutic products for the prevention and treatment of ... notice on July 18, 2014 from the NYSE ... the CorMedix plan to regain compliance with continued ... the NYSE-MKT is continuing the Company,s listing and ...
Breaking Biology Technology:University of Delaware researcher describes new approach for creating organic zeolites 2Global Cell Culture Market 2014-2018: Key Vendors are Becton, Dickinson and Co, EMD, GE Healthcare, Lonza Group, Sigma Aldrich and Thermo Fisher Scientific 2Getting More Life out of Lithium-ion Batteries 2CorMedix, Inc. Granted Extension of NYSE-MKT Listing 2CorMedix, Inc. Granted Extension of NYSE-MKT Listing 3
... ... it is a sponsor for this year’s 4th Annual Orthopedic Design & Tradeshow (ODT) ... NEIRP partners and staff will also be available to meet tradeshow attendees at ... region has to offer to the medical device industry . , ...
... 5 Peregrine Pharmaceuticals, Inc. (Nasdaq: PPHM ) ... trial evaluating bavituximab in combination with carboplatin and paclitaxel ... Data previously reported from the initial cohort of 21 ... 17 evaluable patients with locally advanced or metastatic NSCLC ...
... Regado Biosciences, a privately held company leading the development ... that David J. Mazzo, Ph.D., President and Chief Executive ... 2009 at the Conrad Hotel in Tokyo, Japan. ... on October 6, 2009. The Conference brings together premier ...
Cached Biology Technology:Northeast Indiana Regional Partnership to Participate in 2009 Orthopedic Design & Technology Conference & Exhibition 2Northeast Indiana Regional Partnership to Participate in 2009 Orthopedic Design & Technology Conference & Exhibition 3Peregrine Pharmaceuticals Reports Positive Results From Phase II Bavituximab Lung Cancer Trial 2Peregrine Pharmaceuticals Reports Positive Results From Phase II Bavituximab Lung Cancer Trial 3Peregrine Pharmaceuticals Reports Positive Results From Phase II Bavituximab Lung Cancer Trial 4Regado Biosciences To Present at the 2009 Japan Biopharma Partnering Conference on October 6, 2009 2
hnRNP U (H-94)...
... sheer in-house demand is causing shortages in your ... This can cause unwanted distractions, problems and delays. ... your hard work and endeavour! Bring us your ... market it internationally. We work under ISO 9001 ...
... causing shortages in your laboratory or fellow ... unwanted distractions, problems and delays. ... hard work and endeavour! Bring us your ... market it internationally. We work under ISO ...
... from vaccinia virus is a type I ... negative superhelical turns (also called right- and ... product of the reaction is a covalently ... negative superhelical turns. DNA Topoisomerase I does ...
Biology Products: