Navigation Links
Ovarian transplantation: New technique gives greatly improved results in this delicate operation
Date:6/29/2009

Amsterdam, The Netherlands: Ultra-fast freezing of ovarian tissue from women who have lost their fertility as a result of cancer treatment can lead to it being used in transplants with the same success rate as fresh tissue, a researcher told the 25th annual conference of the European Society of Human Reproduction and Embryology today (Monday 29 June). Dr. Sherman Silber, Director of the St. Louis Infertility Centre, St. Louis, Missouri, USA, said that freezing tissue by the vitrification method, which avoids ice formation, meant that oocyte (egg) viability was almost identical with that seen in fresh oocytes.

Dr. Silber and colleagues used standard viability testing with fluorescent microscopy to determine the loss or preservation of oocytes in fresh and frozen ovarian tissue of 15 young women undergoing cancer treatment. They also followed up nine homozygotic twin patients after fresh ovary transplantation for the duration of ovarian function and pregnancy outcome, and tested spare tissue that had also been frozen from their ovaries at the time of transplant. Tissue was preserved either by rapid cooling vitrification or by classical slow freezing methods.

"We found that 91.9% of the fresh oocytes were viable compared with 88.9% of those vitrified. However, slow freezing resulted in a 56% loss of viability", said Dr. Silber.

Transplantation of the tissue resulted in a duration of ovarian function of more than four years in five of the seven cases followed up for that long, and all patients regained a normal ovarian cycle within four to five months after the transplant. There was no difference in terms of pregnancy or ovulatory menstrual cycling between fresh and frozen grafts. The scientists used the cortical grafting technique, where very thin slices of tissue are transplanted. This technique is much easier to perform than the delicate microvascular technique, which they described last year in an effort to prevent egg loss and to le
'/>"/>

Contact: MaryRice
mary@mrccommunication.org
European Society for Human Reproduction and Embryology
Source:Eurekalert

Page: 1 2

Related biology news :

1. Genetic testing for breast or ovarian cancer risk may be greatly underutilized
2. Promising new treatment option for women with recurrent ovarian cancer
3. TG2 identified as potential therapeutic target in chemo-resistant ovarian cancer
4. Oocyte-specific gene mutations cause premature ovarian failure
5. Ovarian cancer stem cells identified, characterized
6. Mutation of the COX2 gene can double or treble a womans risk of ovarian cancer
7. Colon cancer screening technique shows continued promise in new study
8. Beating heart machine expedites research and development of new surgical tools, techniques
9. New genomic technique uncovers coral transcriptome
10. Lyncean Technologies Inc. receives $1.2 M from NCRR to develop new imaging technique
11. Indigenous peoples at world summit to share climate change observations, coping techniques
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/1/2015)... , April 1, 2015   Medisafe ™, the ... users across iOS and Android ... integrating biofeedback into the platform to allow patients to ... For the first time, patients will be able to ... dose impacts important biometrics, such as glucose levels and ...
(Date:3/31/2015)... --  Guidepoint , a leading global research services firm, ... TRACKER, part of the Guidepoint TRACKER suite ... device and therapeutics markets. The Post-Surgical Pain Management TRACKER ... share, and adoption rates across three major modalities used ... The Post-Surgical Pain Management TRACKER will provide length ...
(Date:3/26/2015)... TORONTO , March 26, 2015 ... premier family, social, recreation and athletic club, today announced ... designed to allow freedom of movement for members and ... "Following a comprehensive process, we selected FST,s IMID ... sophistication and convenience for our members and staff, in ...
Breaking Biology News(10 mins):Medisafe Announces Launch of Biometric Integration, Enabling Patients to Stay Adherent to Their Meds and See Tangible Health Results 2Guidepoint Launches Post-Surgical Pain Management TRACKER 2Guidepoint Launches Post-Surgical Pain Management TRACKER 3Granite Club First Private Club in North America to Implement FST Biometrics Secure Access Solution, as Part of Multi-million Dollar Expansion 2
... hard to come by, a University of Central Florida and ... National Institutes of Health highly competitive grants for hemophilia research. ... is aimed at determining whether a green technique pioneered at ... The second grant worth $2 million for four years is ...
... The Newark College of Engineering (NCE) at NJIT has been ... one of 20 universities and colleges across the nation in ... programs. This selection is the culmination of a ... Associate Dean Lisa Axe. Currently, some 43 percent ...
... out of the lab for a test drive with ... new way to develop possible future scenarios. James ... Center for Systems Integration and Sustainability (CSIS) and now ... London, has paired the relatively new use of agent-based ...
Cached Biology News:Hemophilia research gets NIH boost to a tune of $5.5 million 2Hemophilia research gets NIH boost to a tune of $5.5 million 3NSF funds NJIT's participation in program to retain engineering students 2Engaging land-use stakeholders is model behavior 2
(Date:4/24/2015)... 2015 PAREXEL International Corporation (NASDAQ: PRXL ... that Partnerships in Clinical Trials named PAREXEL,s Drew ... Innovator of the Year.  The honor recognizes Mr. Garty,s ... Perceptive MyTrials ® Data-Driven Monitoring solution. ... 2015 Partnership Awards in Boston , ...
(Date:4/23/2015)... April 23, 2015 /CNW/ - A new and innovative ... from North America,s largest ... won Silver in the "Sustainability, service" category of ... Brandcheck "Competitor Comparison" is a service that scores ... and Global peers. This benchmarking process shows clients ...
(Date:4/23/2015)... San Jose, California (PRWEB) April 23, 2015 ... – Predictive diagnostics refer to a series of ... such as cystic fibrosis, Lou Gehrig's disease, Huntington's ... beneficial in examining the gene composition and interaction ... of the disease as well as the response ...
(Date:4/23/2015)... Irvine, CA (PRWEB) April 23, 2015 ... research leader in Personalized Medicine, is excited to ... Medication Response profile . This profile assesses 62 ... and provide dosing information for commonly prescribed non-opioid ... gabapentin (brand name Neurontin), alprazolam (brand name Xanax) ...
Breaking Biology Technology:PAREXEL Honored With 2015 Clinical Innovator Of The Year Award From Partnerships In Clinical Trials 2PAREXEL Honored With 2015 Clinical Innovator Of The Year Award From Partnerships In Clinical Trials 3PAREXEL Honored With 2015 Clinical Innovator Of The Year Award From Partnerships In Clinical Trials 4PAREXEL Honored With 2015 Clinical Innovator Of The Year Award From Partnerships In Clinical Trials 5Increasing Disease Prevalence & Focus on Preventive Healthcare Drive the Predictive Diagnostics Market, According to a New Report by Global Industry Analysts, Inc. 2Increasing Disease Prevalence & Focus on Preventive Healthcare Drive the Predictive Diagnostics Market, According to a New Report by Global Industry Analysts, Inc. 3Proove Biosciences Launches World’s First Test to Predict Responders to Commonly Prescribed Non-Opioid Pain Medications 2Proove Biosciences Launches World’s First Test to Predict Responders to Commonly Prescribed Non-Opioid Pain Medications 3
... Palatin Technologies,Inc. (Amex: PTN ) will announce ... 9, 2007 before the open of the U.S. financial,markets. ... live audio webcast,hosted by Palatin,s executive management team on ... of operations in greater detail and provide,an update on ...
... 5 Exelixis,Inc. (Nasdaq: EXEL ) today ... 30, 2007. Revenues for the quarter ended ... million for the comparable period in 2006. The ... due to revenue recognition,associated with new collaboration agreements ...
... patients in over 30 states on ... options since 1997, DEERFIELD, Ill., Nov. 5 ... Kidney Patient,Educator (KPE) program, an ambitious project that has ... treatment options to,nearly 80,000 kidney disease patients in over ...
Cached Biology Technology:Palatin Technologies to Report Fiscal Year 2008 First Quarter Results; Teleconference and Webcast on November 9, 2007 2Exelixis Announces Third Quarter 2007 Financial Results and Business Update 2Exelixis Announces Third Quarter 2007 Financial Results and Business Update 3Exelixis Announces Third Quarter 2007 Financial Results and Business Update 4Exelixis Announces Third Quarter 2007 Financial Results and Business Update 5Exelixis Announces Third Quarter 2007 Financial Results and Business Update 6Exelixis Announces Third Quarter 2007 Financial Results and Business Update 7Exelixis Announces Third Quarter 2007 Financial Results and Business Update 8Baxter Kidney Patient Education Program Celebrates Tenth Anniversary 2Baxter Kidney Patient Education Program Celebrates Tenth Anniversary 3Baxter Kidney Patient Education Program Celebrates Tenth Anniversary 4
Adjustable tilt angle 0 to 20 Adjustable speed of 3-25 RPM Load capacity: 2.7 kg (6 lbs.) Ambient temperature range 4C to 65C Low voltage power is supplied by wall mount transformer...
Request Info...
... the rapid isolation of DNA from high melt ... the spin filter, centrifuge for 3 minutes, and ... is no need to melt agarose or use ... be used for buffer exchange, primer removal from ...
Request Info...
Biology Products: