Sperm tissue than frozen tissue. Medical search. Frequent questions

Collecting and freezing sperm, eggs, or embryos before treatment. (cancer.org)
The scientists of the BioRescue consortium have already produced northern white rhino embryos by in vitro fertilisation of oocytes with sperm. (izw-berlin.de)
In this study, we identified candidate reference genes based on transcriptome data covering embryos and larvae of early development, normal adult tissues, and the hindgut under sulfide stress using the coefficient of variation (CV) method in the echiuran Urechis unicinctus , resulting in 6834 (15.82%), 7110 (16.85%) and 13880 (35.87%) candidate reference genes, respectively. (biomedcentral.com)
e ) services to freeze and store sperm, eggs, ovarian or testicular tissue or embryos for a 5-year period or until the insured person has reached the age of 25, whichever is later. (gouv.qc.ca)
Fertility preservation options for women include freezing eggs, freezing embryos, freezing ovarian tissue, and medications which may protect the ovaries from toxic chemotherapy drugs. (ivf.com.au)
Not freezing gametes and embryos at all, delaying collection and freezing and failing to build up sufficient reserves of frozen eggs, sperm and embryos can undermine your chances of successful family building. (louisaghevaertassociates.co.uk)
Failing to consider the legal aspects which govern the storage and use of frozen eggs, sperm and embryos in fertility treatment can also create unwanted problems and even prevent their use in treatment. (louisaghevaertassociates.co.uk)
Whilst flash freezing of eggs (by vitrification) has improved the viability of freezing eggs, it is important to remember that not all eggs will survive the freezing and thawing process and further losses can be experienced in the creation of embryos. (louisaghevaertassociates.co.uk)
From a legal perspective, it is important to understand and proactively manage the legal terms which govern the storage, control and use of eggs, sperm and embryos in fertility treatment in the UK. (louisaghevaertassociates.co.uk)
Take the case of Ms Natalie Evans, who in 2001 created and froze six embryos with her partner Mr Howard Johnston in IVF treatment before undergoing treatment for ovarian cancer which left her infertile. (louisaghevaertassociates.co.uk)
Complex legal issues and problems can also arise in relation to the collection, storage and use of eggs, sperm and embryos in posthumous fertility treatment to preserve biological legacy and honour family building wishes notwithstanding death. (louisaghevaertassociates.co.uk)
The best option currently for a female cancer patient to preserve fertility is to collect eggs, fertilize them with sperm, and freeze the resulting embryos. (nih.gov)
Embryo freezing is a way to store embryos for later use, for many reasons. (pnwfertility.com)
Here are five common reasons why patients freeze their embryos. (pnwfertility.com)
For this reason, many patients choose to freeze and store any additional embryos to use in later IVF attempts. (pnwfertility.com)
Freezing embryos, rather than multiple pregnancies, can also help intended parents who would like to have more than one child. (pnwfertility.com)
Frozen embryos can be safely stored for years before being thawed and transferred to try for another child. (pnwfertility.com)
As IVF success is closely tied to the age at which eggs or embryos are frozen, using previously frozen embryos can improve the chances of a successful pregnancy at a later age. (pnwfertility.com)
Relatedly, intended parents using donor eggs or sperm may wish to develop and freeze additional embryos to have the option of biological siblings, as eggs or sperm from the same donor might not be available years later. (pnwfertility.com)
Fertility preservation involves freezing reproductive tissue (eggs, sperm, or embryos) to provide options for pregnancy in the future. (pnwfertility.com)
Embryos undergoing PGT-A are frozen and stored immediately after testing to preserve them at the optimal stage for implantation while the results process. (pnwfertility.com)
Freezing and storing embryos can provide additional options and flexibility throughout your fertility journey. (pnwfertility.com)
Fertility preservation is the cryopreservation or freezing of eggs, embryos, sperm, or other reproductive tissue in order to protect your future options of building a family. (fertilitypreservationpittsburgh.org)
These cells, taken from days' old embryos called blastocysts, have the ability to form any tissue in the body. (harvard.edu)
Retrieved eggs are combined with sperm to create embryos. (cdc.gov)
ART cycles include any process in which (1) an ART procedure is performed, (2) a woman has undergone ovarian stimulation or monitoring with the intent of having an ART procedure, or (3) frozen embryos have been thawed with the intent of transferring them to a woman. (cdc.gov)
The practice of freezing eggs or embryos from a patient's ART cycle for potential future use. (cdc.gov)
An ART cycle started with the intent of freezing (cryopreserving) all resulting eggs or embryos for potential future use. (cdc.gov)
An ART cycle started with the intent of freezing and banking all eggs or embryos for at least 12 months for future use. (cdc.gov)
Fresh eggs, sperm, or embryos. (cdc.gov)
Eggs, sperm, or embryos that have not been frozen. (cdc.gov)
An ART cycle in which fresh (never frozen) embryos are transferred to the woman. (cdc.gov)
The fresh embryos are conceived with fresh or frozen eggs and fresh or frozen sperm. (cdc.gov)
Established in response to a need for in-house mouse services, the LUTCF provides expertise in cryopreservation of embryos by IVF or natural matings, sperm cryopreservation, rederivation services, strain expansion by IVF, ES morula/blastocyst injections, pronuclear DNA microinjections, and injection of CRISPR edited DNA. (lu.se)

The technical term for this process is cryopreservation, and it happens in a special facility that can freeze and save sperm, eggs, or ovarian tissue. (kidshealth.org)
The cells could also be stored in cryopreservation for future use when eggs and sperm are too difficult to collect or freeze. (scientificamerican.com)
Cryopreservation is a process that preserves cells and tissues by cooling the samples to very low temperatures. (parentsguidecordblood.org)
Although cryopreservation retains viability of frozen cells, it requires specialized equipment to maintain ultralow temperatures. (parentsguidecordblood.org)
Cryopreservation is the process of freezing tissue. (mazemenshealth.com)
Sperm cryopreservation is the freezing of a man's sperm for future use. (mazemenshealth.com)
Sperm cryopreservation has revolutionized the field of assisted reproduction. (fertilitypreservationpittsburgh.org)

Additional fertility options include testicular sperm extraction, radiation shielding and testicular tissue freezing, which you can read more about here . (livestrong.org)
Microscopic testicular sperm extraction (microTESE) is a procedure that takes sperm directly from the testicular tissue of a man's reproductive system. (delhi-ivf.com)
When is microscopic testicular sperm extraction necessary or recommended? (delhi-ivf.com)
Microscopic testicular sperm extraction is usually performed on a man who is infertile and has no sperm in his ejaculation (azoospermia). (delhi-ivf.com)
What happens during the microscopic testicular sperm extraction procedure? (delhi-ivf.com)
A variety of techniques exist for sperm retrieval for in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI), including percutaneous epididymal sperm aspiration, microsurgical epididymal sperm aspiration, testicular sperm aspiration, and open testicular sperm extraction. (medscape.com)
Proponents of microsurgical testicular sperm extraction report increased spermatozoa detection due to the ability to identify more robust and healthy seminiferous tubules for removal. (medscape.com)

With more refined diagnostic techniques and the development of IVF, surgical sperm retrieval is now often employed as a method to provide needed sperm for IVF (fertilization of the female egg with sperm through incubation in a controlled environment outside of the body) or IVF-ICSI (the direct injection of sperm into the female egg). (medscape.com)
Prior to IVF and IVF-ICSI, when only intrauterine insemination techniques were available, the harvest of intrinsically nonmotile sperm from the testicle resulted in take-home baby rates close to zero. (medscape.com)
With the advent of IVF and IVF-ICSI, it is now commonplace to achieve take-home baby rates in excess of 50%, even with nonmotile sperm obtained from testis biopsy. (medscape.com)
Treatments such as in-vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI), where the sperm is placed into the egg rather than next to it, bypass the male problem rather than treating it, said Richard Sharpe, professor at the University of Edinburgh's center for reproductive health. (medscape.com)

However, the over production of oxygen free radicals in sperm membrane decreases the antioxidant defense activity thereby leading to low sperm motility and viability, DNA fragmentation and protein denaturation. (scialert.net)
Next step is certainly thawing and checking the sperm motility at predetermined period of time. (frozencell.org)
As well as we also check maintenance of motility of sperms in Vitri media without freezing. (frozencell.org)
We noted better progressive motility in comparison to conventional freezing. (frozencell.org)
3. Sperm motility in vitri media without freezing. (frozencell.org)
He observed that when glycerol was added to a suspension of rooster spermatozoa before freezing to -80 ° C, most of the sperm cells retained normal motility upon thawing. (parentsguidecordblood.org)
Involved in sperm motility. (joplink.net)

So we can extract and freeze eggs or sperm or reproductive tissue for future use, before cancer treatment begins. (thewomens.org.au)
Additional research will be needed before this type of procedure can be done on humans, however, preserving reproductive tissue now for advances in the future is advisable. (conceivingconcepts.com)

Men undergoing vasectomy reversal after failed percutaneous epididymal sperm aspiration with IVF (inadequate sperm found or IVF failure) have been shown to have equivalent future success rates of vasectomy reversal compared to men not having undergone percutaneous epididymal sperm aspiration despite the theoretical risk of epididymal scarring from the procedure. (medscape.com)

For comparison, the same procedure was also done in other mice using rat cells that had been removed and immediately implanted, as well as with rat cells that had been frozen a few months ago. (newscientist.com)
For males, sperm banking has been around for a long time and is a common procedure, although not all hospitals offer it. (kidshealth.org)
For younger teens and boys, a more experimental procedure called sperm aspiration may be possible. (kidshealth.org)
Early observations from a new study at Children's Hospital indicate that parents of prepubertal boys are willing to agree to the procedure, and are grateful for the opportunity, even though there is no certainty that the preserved tissue will be useful to their sons in the future. (eurekalert.org)
If a man can't release or make enough healthy sperm naturally, this medical the procedure may be recommended for fertility reasons (to enable the man to father a child). (delhi-ivf.com)
In patients with non-obstructive azoospermia, micro the procedure increases the chances of sperm retrieval. (delhi-ivf.com)
A urologist, a doctor who specializes in the male and female urinary tract and male reproductive organs, typically performs the procedure by making a few small cuts in the testicle and removing a small amount of tissue. (delhi-ivf.com)
However, the procedure and freezing charges can be expensive and are not covered by insurance or public health services. (cancer-fund.org)
Once the optimum conditions for fixation of intestinal epithelium were determined, many other tissues were subjected to the same procedure. (rupress.org)

At the Center for Reproductive Medicine, fertility preservation services include sperm, egg, ovarian and testicular tissue and embryo freezing coupled with one-on-one counseling. (michigandaily.com)
A diagnosis of OT-DSD is based solely on the presence of ovarian and testicular tissue in the gonad and not on the characteristics of the internal and external genitalia, even if ambiguous. (medscape.com)
Patients with ovotesticular disorder of sexual development are individuals who have both ovarian and testicular tissue. (medscape.com)

Autologous grafting of cryopreserved prepubertal rhesus testis produces sperm and offspring. (eurekalert.org)
Now The Children's Hospital of Philadelphia is offering a unique option to those boys: from infants up to younger adolescents, at-risk boys can have a tiny portion of their testis removed and frozen for their potential future use. (eurekalert.org)
Additionally, testicular and ovarian tissue may develop on the same side of the pelvis as a separate ovary and testis. (medscape.com)

In 2016, doctors at the All India Institute of Medical Sciences (AIIMS) revealed in an academic paper that they were "recently" faced with a "polite request" by the wife of a deceased for sperm retrieval. (openthemagazine.com)
After an hour of discussion among various consultants, it was decided that the request could not be accepted as the institute does not have any protocol in hand about sperm retrieval from a deceased person. (openthemagazine.com)
Even five years down the line, there is no clear guideline on sperm retrieval from a brain dead or deceased person, and hence the Gujarat-based woman's trip to the court. (openthemagazine.com)
There are no legal guidelines yet [on Post Mortem Sperm Retrieval, PMSR] and as such doctors are at a loss when faced with such a request. (openthemagazine.com)
It was in 2006 that Rajesh Bardale and PG Dixit, then with the department of forensics at the Government Medical College in Nagpur, had written a paper on the ethical questions of posthumous sperm retrieval in India, based on examples of similar requests in other countries. (openthemagazine.com)
Patients found to have complete absence of sperm on multiple semen analyses from either obstructive or nonobstructive azoospermia are candidates for surgical sperm retrieval. (medscape.com)
However, it will often improve with medical treatment only, negating the need for surgical sperm retrieval. (medscape.com)

Sperm rich pellet mixed with Vitri Media (quantity of Vitri Media decided according to sperm concentration - motile sperm / ml). (frozencell.org)
No motile sperm were DENV positive. (cdc.gov)

This process removes immature sperm cells for later use in in vitro fertilization. (kidshealth.org)
It carries sperm and other nutrients that help the sperm survive to enable successful fertilization. (delhi-ivf.com)
With modern reproductive techniques, fertilization has been possible with fewer and fewer sperm. (mazemenshealth.com)
Cryopreserving (freezing) sperm avoids the need for additional surgery in couples undergoing repeated in vitro fertilization injection cycles. (fertilitypreservationpittsburgh.org)

Radiation that's focused on or near the pelvic area can damage a girl's ovaries or reduce sperm count in guys. (kidshealth.org)
The freezing of eggs, which is offered to women without current sexual partners, involves stimulation of the ovaries prior to the eggs being frozen and harvested. (michigandaily.com)
Researchers have already identified experimental methods to freeze entire ovaries or strips of ovarian tissue and implant them in a woman's body when she is ready to have children. (nih.gov)
A medical condition that involves the presence of tissue similar to the uterine lining in locations outside the uterus, such as the ovaries, fallopian tubes, or abdominal cavity. (cdc.gov)

The findings suggest that children who have testicle tissue frozen before cancer treatment may be able to have the tissue reimplanted so they can one day have their own biological children through in vitro fertilisation (IVF), says Eoin Whelan at the University of Pennsylvania in Philadelphia. (newscientist.com)
Studying in-vitro approaches to produce sperm or eggs. (upmc.com)
Relating in vitro to in vivo exposures with physiologically-based tissue dosimetry and tissue response models. (cdc.gov)

A decision to freeze too late in life (particularly for women reaching their late 30's and beyond) can result in a lack of quantity and poor quality gametes with low or no viability at all. (louisaghevaertassociates.co.uk)
To ensure the future viability of your sperm, we first perform a thorough semen analysis prior to banking. (mazemenshealth.com)

When the eggs are eventually thawed, they are fertilized with a partner's sperm. (michigandaily.com)
For women, who have finite fertility windows, this can be particularly important and help maximise their options in the event they separate from their partner, conception attempts with a partner's sperm sample or with donor sperm prove unsuccessful and provide flexibility and options to seek to conceive a biologically related child with a new partner further down the line. (louisaghevaertassociates.co.uk)

Radiation and chemotherapy can negatively affect a man's sperm production- sometimes permanently destroying completely the ability to make new sperm. (mazemenshealth.com)
LONDON (Reuters) - They can make test-tube babies, grow human eggs in a lab and reproduce mice from frozen testicle tissue, but when it comes to knowing how a man's sperm can swim to, find and fertilize an egg, scientists are still floundering. (medscape.com)

of Human Sperm and Salt Concentration. (frozencell.org)
of Human Sperm require extremely high concentration of salt. (frozencell.org)
of Human Sperm and Salt Concentration isn't favoring this idea. (frozencell.org)
I emphasize again that newly developed Vitri Media work successfully with human sperm. (frozencell.org)

In the human reproductive process, two kinds of sex cells ( gametes), are involved: the male gamete (sperm), and the female gamete (egg or ovum). (wikibooks.org)
Now there is one last step to master for the production of artificial rhino gametes (eggs and sperm) from preserved tissue. (izw-berlin.de)
With stem cell associated techniques (SCAT) the BioRescue scientists aim to overcome this bottleneck: By using stored and preserved tissue of rhino skin it should be possible in principle to create induced pluripotent stem cells (iPCSs), primordial germ cells and finally artificial gametes. (izw-berlin.de)

Variants (also known as mutations) in the ACVR1 gene cause fibrodysplasia ossificans progressiva, a disorder in which muscles and connective tissue such as tendons and ligaments are gradually replaced by bone (ossified). (medlineplus.gov)
Ovotestes are usually compartmentalized, with connective tissue separating the ovarian components from the testicular components. (medscape.com)

Silla A.J. (2010) Effects of luteinizing hormone-releasing hormone and arginine-vasotocin on the sperm-release response of Günther's toadlet, Pseudophryne guentheri . (conservationevidence.com)

They took advantage of stem cells from rats that had been isolated and frozen 23 years earlier, thawing and implanting them into the testes of mice. (newscientist.com)
When the mice's testes were examined, the 23-year-old stem cells had survived and developed into groups of sperm-producing cells, although they made about 20-fold fewer groups of cells than the fresh tissue or recently frozen tissue. (newscientist.com)
According to a single-cell analysis of autopsied human testes, abnormalities associated with aging sperm cells may be exacerbated by elevated body mass index (BMI). (scitechdaily.com)
Researchers are also using part of the tissue to investigate ways to help the immature cells in the testes to develop into useable sperm. (eurekalert.org)
The ultimate hope is that, in the future, once the patient is ready to begin a family, health care providers would thaw the preserved tissue, then reimplant it in the patient's testes or use it for other assisted reproduction technologies. (eurekalert.org)
The testicular tissue is found in the two testes, where the sperm is made. (delhi-ivf.com)
In order for Men to make sperm, the testes need to be producing a very high concentration of testosterone. (mazemenshealth.com)

They are the same in that most of the reproductive organs of both sexes develop from similar embryonic tissue, meaning they are homologous. (wikibooks.org)
According to their most recent paper published in the journal "Science Advances", the team has now successfully cultivated primordial germ cells (PGCs) - the precursors of eggs and sperm - from embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs). (izw-berlin.de)
In sexually reproducing organisms such as humans, rhinos or mice, primordial germ cells (PGCs) are embryonic precursors of sperm and eggs that pass on genetic and epigenetic information from one generation to the next. (izw-berlin.de)
They established culture systems for the southern white rhino, for which embryonic stem cells are available, and the northern white rhino, for which they used induced pluripotent stem cells derived from tissue samples. (izw-berlin.de)
And the researchers have already accomplished the first step, creating embryonic stem-like cells from the tissue of an endangered adult snow leopard ( Panthera uncia ). (scientificamerican.com)
The variants that cause fibrodysplasia ossificans progressiva occur as a random (de novo) event during the formation of reproductive cells (eggs or sperm) in an affected person's parent or in early embryonic development. (medlineplus.gov)

Whatever your reason for cryobanking, Maze offers a full line of services to collect, freeze and store sperm. (mazemenshealth.com)

Radiation treatments also can damage sperm and eggs , whether the treatment is focused on these areas or scattered elsewhere. (kidshealth.org)
Do not wish to delay or interrupt their gender-affirming treatments to avoid male puberty and sperm production. (upmc.com)
Reference genes are used for the normalization of gene expression because of the stability of expression levels among different tissues, different developmental stages, or under various treatments [ 5 ]. (biomedcentral.com)
Men facing such treatments can freeze their sperm for use at a later date. (nih.gov)

Finally, the researchers will have to demonstrate that they can freeze and thaw human follicles before growing them in culture. (nih.gov)
After each specimen is frozen for 48 hours, we thaw a small sample and test it again to see how well it survived the freezing. (mazemenshealth.com)

Chemotherapy to treat cancer can kill stem cells in the testicles that make sperm. (newscientist.com)
Procedures like chemotherapy radiation can alter sperm and eggs. (thehearup.com)
Radiation and chemotherapy raise the risk of damage to the sperm, eggs, and reproductive organs. (willmarregionalcancercenter.com)

You really only need one viable sperm to succeed. (newscientist.com)

Still we need to decide it is ultra rapid freezing or vitrification. (frozencell.org)
My work on vitrification started with a trial of finding freezing media without H.S.A.(Human serum albumin) . (frozencell.org)
And as a result of lateral approach I proceeded toward ultra rapid freezing (vitrification-2) of sperm. (frozencell.org)
Once we got a desire result, we will work to improve and refine method of sperm separation and vitrification. (frozencell.org)

In such cases, some clinics have been removing and freezing small samples of children's immature testicle tissue in the hope that, if reimplanted when they are adults, it will mature and start making sperm. (newscientist.com)

The researchers froze isolated testicle stem cells, while clinics are freezing whole tissue samples. (newscientist.com)
Researchers have successfully frozen testicular tissue from monkeys too young to produce sperm and used this tissue to produce a pregnancy resulting in live, healthy offspring. (eurekalert.org)
When the animals approached puberty, the researchers thawed the tissue samples and implanted them, along with a comparison set of fresh, unfrozen samples, back into the animals they came from. (eurekalert.org)
The researchers then isolated sperm from the previously frozen implants and used it to fertilize 138 eggs. (eurekalert.org)
Stem cells have generated excitement among researchers from their ability to both regenerate themselves and to produce specialized tissue cells. (harvard.edu)

The penetration of the egg by the sperm and the resulting combining of genetic material that develops into an embryo. (cdc.gov)

Oxygen free radicals are naturally produced by mitochondrial and sperm plasma membrane and have beneficial and detrimental effects that cannot be overlooked. (scialert.net)
However, preservation of mitochondrial integrity with little diminution in succinic dehydrogenase activity was obtained by fixing tissue slices (less than 1 mm. in thickness) in 8 per cent unneutralized, aqueous formaldehyde from 8 to 16 minutes at from 5° to 10°C. prior to freezing. (rupress.org)

But what if cancer cells are present in testicular tissue "Our study addressed an important safety issue - whether cancer cells that might be present in testicular tissue samples can survive the process to replicate the sperm-producing stem cells," explained lead author Hooman Sadri-Ardekani, MD, PhD, an instructor in urology and regenerative medicine at Wake Forest Baptist Medical Center. (conceivingconcepts.com)
The approach of Dr. Sadri-Ardekani was to investigate whether cancer cells would survive the laboratory protocol developed to reproduce SSCs from a small tissue biopsy. (conceivingconcepts.com)
Unlike sperm, eggs rarely survive freezing and thawing. (nih.gov)

This is a particularly difficult problem for boys who are not sexually mature and cannot bank sperm. (conceivingconcepts.com)
We will review many of the reasons to bank sperm below. (mazemenshealth.com)

Since, ROS is essential for the normal sperm physiology, rationale use of antioxidants is advocated. (scialert.net)
Without understanding the biology of how normal sperm work, we can't possibly understand how they don't work, or how to correct the problem," Sarah Martins Da Silva, a reproductive medicine specialist at the University of Dundee told a London briefing this week. (medscape.com)

The groups of cells from the 23-year-old implants were making mature sperm, but each one made about a third as many as the ones derived from implants of fresh or recently frozen cells. (newscientist.com)
Young males who aren't yet producing mature sperm. (upmc.com)

Grapefruit is a rich source of Vitamin C, which is known to help improve sperm health and mobility. (yougettingpregnant.com)
The goal of pharmacotherapy is to improve sperm count. (medscape.com)

A male who is healthy, and sexually mature, continuously produces sperm. (wikibooks.org)

Advancing stem cell and gonadal tissue transplantation therapies for infertility. (upmc.com)
Freezing testicular tissue The goal is to freeze testicular tissue so that when the boys reach adulthood, spermatogonial stem cells (SSCs) in the tissue can be reproduced in the lab and transplanted back into the boys. (conceivingconcepts.com)
This pilot study showed that the culture system not only allowed for efficient propagation of sperm stem cells, but also eliminated ALL cells," said Sadri-Ardekano. (conceivingconcepts.com)
Harvard's ability is critical in this case, Summers said, given the promise of stem cells to cure organ or tissue failure from diseases that afflict 150 million nationally. (harvard.edu)

The authors note that the study is small, but it helps establish the concept of using immature testicular tissue to preserve fertility. (eurekalert.org)
In some cases, it may be possible to preserve (or "bank") some of your sperm or eggs. (kidshealth.org)
Boys diagnosed with cancer who have reached puberty currently have an opportunity to preserve their fertility: before undergoing cancer treatment, they may have their semen frozen and preserved in sperm banks. (eurekalert.org)
Sperm banking is a simple way to preserve fertility before treatment. (livestrong.org)
Egg, sperm and embryo freezing can help preserve and maximise individual fertility. (louisaghevaertassociates.co.uk)

Sperm samples from deceased males that are preserved in bio-banks solve one side of the equation, but there aren't frozen stores of northern white rhino eggs that we can rely on as easily. (theconversation.com)
Female Fatu is the only donor of natural oocytes left and frozen sperm is available to the program from only four males - and some of these males are closely related to Fatu. (izw-berlin.de)

Mammalian sperm cells present highly specific lipidic composition, high content of polyunsaturated fatty acids, plasmalogenes and sphingomyelins. (scialert.net)
Understanding how organisms tolerate environmental extremes can provide strategies for preservation of mammalian cells and tissues. (parentsguidecordblood.org)

After treating the females with hormones the immature eggs were collected, transferred to a lab where they were matured and then fertilised with frozen sperm. (theconversation.com)

The finding is an early step in the development of a method to store testicular tissue for children before they undergo fertility-destroying treatment for cancer or other disorders. (eurekalert.org)
In some situations, your doctor may tell you that it isn't a good idea to bank your sperm or eggs, because using them later could put you at risk of cancer cells getting into your body. (kidshealth.org)
Based on these findings, we recommend that all boys with cancer be offered the option of storing testicular tissue for possible future clinical use. (conceivingconcepts.com)
Up to 30% of boys with this type of cancer had cancer cells in their testicular tissue. (conceivingconcepts.com)
This is a good option for some patients, but it is possible that some cancer cells may hitch hike on the ovarian tissue and result in a new cancer after treatment is completed. (nih.gov)
They collected them from the ovarian tissue of 14 cancer patients. (nih.gov)
Cancer therapy may cause premature testicular failure (the failure to produce sperm). (willmarregionalcancercenter.com)
There are a number of reasons a man may choose to freeze his sperm, including: Advancing age Deteriorating sperm quality or low quantity Cancer. (fertilitypreservationpittsburgh.org)

That's because the science of freeze-drying has long been used in the major archeology departments at Princeton, Harvard, and Yale as they subscribe solely to the preservation of important antiquities using a freeze-drying process. (preparednesspro.com)
Does that convince you that there may be merit to freeze-drying for preservation? (preparednesspro.com)
Ovarian Cortex Freezing Introduction Here at the Department of Fertility and Preservation at. (suryahospitals.com)
Egg Freezing Introduction: Department of Fertility and Preservation at Surya Hospitals, emphasizes. (suryahospitals.com)
Fertility preservation options for men include freezing sperm and freezing testicular tissue. (ivf.com.au)
To overcome this shortcoming of cell therapies, scientists have developed cell and tissue preservation techniques to prolong life of living cells outside of the body. (parentsguidecordblood.org)
The Fertility Preservation Program in Pittsburgh (https://fertilitypreservationpittsburgh.org/) and the Center for Reproduction and Transplantation at Magee-Womens Hospital, University of Pittsburgh Medical Center is enrolling patients for ovarian tissue. (fertilitypreservationpittsburgh.org)

Sperm is used to fertilize the egg outside of the woman's uterus. (kidshealth.org)
Get enough sperm to fertilize an egg from a woman. (delhi-ivf.com)
Four percent of normal-shaped sperm (using the "strict" criteria) is ideal to be able to fertilize an egg. (delhi-ivf.com)

Developing next-generation methods to treat the most complex cases of infertility (no eggs, no sperm). (upmc.com)
Male infertility in its most severe form may be caused by a condition known as nonobstructive azoospermia (the man does not produce sperm), or obstructive azoospermia (sperm is produced, but blocked, and can't be released from the body). (delhi-ivf.com)
We know that sperm counts are dependent on high levels of testosterone, and there is some knowledge of links between sperm count and infertility, experts say. (medscape.com)

Embryo donation is similar to egg and sperm donation, and is an option for intended parents who struggle to conceive using their own eggs or sperm. (pnwfertility.com)

Rat testicle cells that were frozen for 23 years have produced sperm after being implanted into mice. (newscientist.com)
The mice had been treated with a drug that killed their own sperm-making cells - which is too toxic to use on rats - and had defective immune systems so they couldn't reject the transplant. (newscientist.com)
The new findings build on earlier efforts by the research team, who grew mouse follicles in culture, induced the eggs they contained to mature, fertilized them with mouse sperm, and implanted them into female mice to establish pregnancy. (nih.gov)

Semen analysis: Determines the number and quality of sperm. (delhi-ivf.com)

Adults can have sperm samples frozen before this treatment , but that isn't an option for children who are yet to go through puberty. (newscientist.com)
They also took the cells from adult rats, while clinics have to take tissue from children who haven't yet gone through puberty. (newscientist.com)
However, because of functioning normal ovarian tissue, most people experience breast development at puberty, and approximately two-thirds of those with a 46,XX peripheral karyotype menstruate. (medscape.com)

Half of each specimen is frozen for potential future use. (eurekalert.org)

Younger boys, however, do not produce sperm, although their testicular tissue contains young cells that will eventually become sperm. (eurekalert.org)
This unusual structure of sperm membrane is responsible for its flexibility and the functional ability of sperm cells. (scialert.net)
These are the cells ultimately responsible for sperm production. (conceivingconcepts.com)
Crucial to embryo production is the availability of oocytes (egg cells) and sperm. (izw-berlin.de)
Verma said these cells can be used either for cloning or to grow eggs or sperm in a lab. (scientificamerican.com)
It is currently the only method allowing long-term storage of living cells and tissues for years to decades. (parentsguidecordblood.org)
FSH stimulates the Sertoli cells to facilitate sperm production, while LH stimulates testosterone release from the Leydig cells. (medscape.com)
Experts say that to address the basic unanswered clinical and scientific questions in andrology - the study of male reproductive health - would require research ranging from large, ideally international, epidemiological studies to detailed lab work to decipher exactly how sperm cells function. (medscape.com)

Nevertheless, if the same results happen in people, participants could produce some sperm even if numbers are low, says Whelan. (newscientist.com)
Both systems have gonads that produce (sperm and egg or ovum) and sex organs. (wikibooks.org)
In the current study, the authors removed and froze testicular tissue from five rhesus macaques too young to produce sperm. (eurekalert.org)
25% goes toward ongoing research to design technologies to produce sperm from the tissue (either inside or outside the body). (upmc.com)
20% goes toward ongoing research to design technologies to produce eggs from the tissue. (upmc.com)
So, for the record, dehydrated produce, i.e. vegetables and fruits, DEFINITELY have an inferior nutritional value than freeze-dried produce. (preparednesspro.com)

Anatomy49

Organisms27

Diseases16

Chemicals and Drugs54

Analytical, Diagnostic and Therapeutic Techniques and Equipment58

Psychiatry and Psychology6

Phenomena and Processes57

Disciplines and Occupations2

Anthropology, Education, Sociology and Social Phenomena2

Technology, Industry, Agriculture3

Information Science4

Health Care6

Embryos34

Cryopreservation7

Testicular sperm extr7

ICSI4

Motility7

Reproductive tissue2

Percutaneous epididymal sperm aspiration1

Procedure9

Ovarian and testicular tissue3

Testis3

Retrieval7

Motile sperm2

Fertilization4

Ovaries4

Vitro3

Viability2

Partner's sperm2

Man's2

Human Sperm4

Gametes3

Connective tissue2

Luteinizing hormone1

Testes7

Embryonic6

Store sperm1

Treatments4

Thaw2

Chemotherapy3

Viable sperm1

Vitrification4

Testicle tissue1

Researchers5

Genetic1

Mitochondrial2

Survive3

Bank sperm2

Normal sperm2

Mature sperm2

Improve sperm2

Produces sperm1

Stem4

Preserve5

Males2

Mammalian2

Immature1

Cancer8

Preservation7

Fertilize3

Infertility3

Donation1

Mice3

Semen Analysis1

Puberty3

Specimen is frozen1

Cells8

Produce6