Womb etiketine sahip kayıtlar gösteriliyor. Tüm kayıtları göster
Womb etiketine sahip kayıtlar gösteriliyor. Tüm kayıtları göster

22 Mart 2017 Çarşamba

Womb cancer risk grows with extra waist weight, study suggests

Women who have a higher waist to hip ratio could have an increased risk of womb cancer, a study suggests.


Researchers writing in the British Medical Journal (BMJ) found that for every increase of 0.1 units in the ratio between waist and hip, the risk of developing the disease increased by 21%.


Experts from the World Cancer Research Fund (WCRF), which part-funded the study, said the results showed a strong relationship between cancer and carrying extra weight around the waist.


The waist to hip ratio is worked out by dividing waist circumference by hip measurement. For example, a person with a 28-inch (71cm) waist and 40-inch (102cm) hips would have a ratio of 0.7.


A woman with a ratio of 0.7 which then increased to 0.8 would have a 21% greater risk of developing womb cancer, the study suggests. For the person in the example above, this would be the equivalent of an increase from a 28-inch (71cm) waist to a 32-inch (81cm) waist, with the hip measurement remaining the same. Another 0.1 increase would raise that risk even further.


A ratio above 0.85 for women or 0.90 for men is a sign of obesity.


The WCRF estimates that about 25,000 cancer cases could be prevented every year in the UK if people were a healthy weight.


Prof Konstantinos Tsilidis, from Imperial College London, said: “These results demonstrate how important it is for women to make sure they maintain a healthy weight in order to reduce their cancer risk.”


Dr Panagiota Mitrou, director of research funding at the WCRF, said: “We know that extra weight around the waist increases the risk of a range of health conditions, such as diabetes, but this important study is helping us shine a light on how body fat around the waist could affect cancer risk.


“It is incredibly important that people are aware of the dangers of excess body fat, particularly around their waist. After not smoking, maintaining a healthy weight is the best thing people can do to help prevent cancer.”


The study also found associations between waist to hip ratio and bowel and pancreatic cancer, although these were not as strong.



Womb cancer risk grows with extra waist weight, study suggests

3 Haziran 2014 Salı

Boys who produce autism "exposed to higher ranges of hormone in the womb"

The lead to of the elevated hormone amounts is unclear, it is considered to be a genetic problem.


The researchers stated due to the fact the hormones have been discovered in the amniotic fluid, which surrounds the child in the womb, the supply is a lot more most likely to be the infant than the mother. They strategy additional exams on the mother’s hormones to create this.


Autism is a broad spectrum of disorders affecting social interaction, and occasionally speech and understanding.


It is believed up to one in one hundred children might be impacted by autism spectrum disorders.


The findings had been published in the journal Molecular Psychiatry.


Lead writer Simon Baron-Cohen, professor of developmental psychopathology at Cambridge, stated: “We previously knew that elevated prenatal testosterone is connected with slower social and language improvement, much better focus to detail and a lot more autistic traits.


“Now, for the initial time, we have also proven that these hormones are elevated in youngsters clinically diagnosed with autism.”


The study drew on 19,500 amniotic-fluid samples stored in a Danish biobank from folks born in between 1993 and 1999.


The researchers identified samples from mothers who gave birth to 128 boys later on diagnosed with an autism-spectrum condition.


Simply because some of the hormones are made in considerably higher quantities in males than in females, the obtaining may possibly help clarify why autism has an effect on far more boys, the researchers said.


Prof Baron-Cohen stated: “These new outcomes are especially striking because they are located across all the subgroups on the autism spectrum, for the very first time uniting people with Asperger Syndrome, traditional autism, or Pervasive Developmental Disorder Not-Otherwise-Specified.


“We now want to check if the very same locating is found in females with autism.”


However there were some boys who did not have autism who had been exposed to higher amounts of hormones in the womb and some boys with autism who have been exposed to reduced levels of hormones, so the outcomes cannot be utilised to create a prenatal check for autism, specialists mentioned.


Dr Rosa Hoekstra, Lecturer in Psychology, The Open University, explained: “This paper is the first to recommend that male foetuses who later on produce autism may have been exposed to somewhat larger ranges of prenatal steroid hormones, as measured in amniotic fluid, compared to male foetuses who create typically following birth.


“Moreover, this study centered on comparisons between boys with autism and boys with no psychiatric diagnoses or studying difficulties. As the authors stage out themselves, it is as nevertheless unknown if similar distinctions apply to ladies with autism, and to kids with other problems, this kind of as ADHD or intellectual disability.”


Prof Richard Sharpe, of the Healthcare Analysis Centre for Reproductive Well being at the University of Edinburgh, mentioned: “Finding the fetal leads to of autism-spectrum ailments is a challenging activity, so this carefully made research wants to be viewed in this context.


“It is an important initial phase.


“At face value this seems to fit with the previously argued hypothesis that ‘overexposure’ to fetal androgens could increase the chance of autistic disorders, and would also fit with the increased prevalence of these disorders in boys, who are naturally exposed to increased amounts of fetal androgens than are girls.


“However, as the authors are mindful to point out, if you examine real hormone levels (I.e. Testosterone) in the amniotic fluid samples in their research, there is no clear distinction among hormone ranges in controls and in people who went on to build an autistic disorder.


“There could be several explanations for this, this kind of as variation in personal sensitivity to hormones or that the time widow investigated is also early to detect a correct elevation of hormone amounts as the amniocentesis procedure from which these samples are collected is usually undertaken in between 15-twenty weeks.”


He advised there may be option explanations including that kids with autism are more sensitive to hormone amounts or their bodies use them in a distinct way to normal.


He explained: “We now know that subtle variations in fetal growth are an essential determinant of later disease, which may be lifelong.


“Studying this in humans is exceptionally tough because of the obvious limitations in accessing what is occurring in the foetus within the womb, so investigations this kind of as the current research have to be viewed as pioneering.”


A paper published in March in the New England Journal of Medication found that individuals diagnosed with autism missed essential genetic markers for brain cells that are supposed to create prior to birth.


A Norwegian study published last year discovered that taking folic acid dietary supplements in early pregnancy was linked to a reduce danger of autistic disorder. Folic acid is required to fuse the spinal cord in early fetal advancement.


Vaccination has been feared as a prospective cause of autism right after a review by Andrew Wakefield, published in the Lancet healthcare journal in 1998, linked the measles-mumps-rubella vaccine to an enhanced threat of building the situation.


The Lancet retracted the examine in 2010, citing “false” claims, and the British Health care Journal referred to as it a fraud in a report the following year.



Boys who produce autism "exposed to higher ranges of hormone in the womb"

Autistic boys exposed to higher levels of hormones in womb, study finds

baby boy

Outcomes might assist scientists unravel some of the underlying leads to of the autism. Photograph: Alamy




Research on youngsters in Denmark has found that boys with autism had been much more probably to have been exposed to larger levels of hormones in their mother’s wombs than individuals who created normally.


Boys diagnosed with autism and related ailments had, on typical, raised amounts of testosterone, cortisol and other hormones in the womb, in accordance to analyses of amniotic fluid that was stored soon after their mothers had medical tests in the course of pregnancy.


The findings add to a increasing body of proof that the biological foundations of autism are laid down properly prior to birth and involve elements that go past the child’s genetic make-up.


The outcomes could assist scientists to unravel some of the underlying triggers of the autism and clarify why boys are 4 to five occasions more most likely to be diagnosed with the situation, which influences about a single % of the population.


Amniotic fluid surrounds the little one in the womb and is made up of hormones and other substances that they pass through their urine. The liquid is collected for testing when some women have an amniocentesis around 4 months into their pregnancy.


Scientists in Cambridge and Copenhagen drew on Danish healthcare records and biobank materials to uncover amniotic fluid samples from 128 boys who have been later on diagnosed with autism. In contrast to a handle group, the boys with autism and related circumstances had higher ranges of four “sex steroid” hormones that form a biological production line in the physique that begins with progesterone and ends with testosterone.


“In the womb, boys create about twice as considerably testosterone as women, but compared with typical boys, the autism group has even larger ranges. It truly is a considerable big difference and may have a huge impact on brain improvement,” said Simon Baron-Cohen, director of the Autism Research Centre at Cambridge University.


Simply because boys are naturally exposed to much more testosterone in the womb, even a modest rise in the hormone may possibly place them in the threat variety for autism. Ranges of the tension hormone, cortisol, had been also larger in the autism group. “From this study we can’t say this is causal, but it is telling us that component of the biology of autism commences prenatally,” Baron-Cohen extra.


Prior function in animals has shown that testosterone plays a key role in shaping the male brain in the womb. The newest review, published in Molecular Psychiatry, will now be followed up, to solution whether or not higher ranges of hormones lead to more autism in ladies, and why ranges may well rise in the womb in the very first area.


The work does not aim to produce a prenatal test for autism, Asperger’s syndrome, or milder, relevant situations. In the examine, some boys exposed to high levels of testosterone in the womb designed properly generally, although others exposed to lower amounts were diagnosed with autism. The results cannot indicate whether or not an personal will go on to produce autism or not.


Even if a test could predict autism, it would raise significant ethical problems. “A prenatal check that is utilised to make a decision to terminate a pregnancy could efficiently be a form of eugenics. A prenatal test that is utilised for early detection, with a see to starting intervention in early postnatal life could be significantly less ethically contentious, and would need to be evaluated for its positive aspects. But we are a prolonged way from that at present,” stated Baron-Cohen.


He went on to warn that the review does not justify the use of drugs that block sex hormones as a treatment method for autism. Drugs that do this have already been supplied, inappropriately, to individuals with autism, but they could have damaging side results and could do nothing at all to alter the brain once it has been shaped in the womb.


Richard Sharpe at the MRC Centre for Reproductive Well being at Edinburgh University described the function as “pioneering”.


“We now know that subtle variations in foetal advancement are an crucial determinant of later condition, which could be lifelong. Studying this in people is exceptionally challenging since of the obvious limitations in accessing what is occurring in the foetus inside the womb,” he said.




Autistic boys exposed to higher levels of hormones in womb, study finds

25 Mart 2014 Salı

Alzheimer"s Condition chance might commence in the womb

“We still want to do much more operate to realize how our findings translate to people, but we have identified for some time that safeguarding mothers’ overall health for the duration of pregnancy can assist reduce the danger of well being difficulties for their children.


“Our subsequent step will be to investigate how our findings could relate to Alzheimer’s disease in folks. We hope these benefits could give a new lead for investigation to understand how to avoid the illness.”


The research was presented at the Alzheimer’s Investigation United kingdom conference taking spot in Oxford this week.


Dr Eric Karran, director of analysis at the charity, which funded the review, explained: “It’s essential to don’t forget that this analysis is in mice, but these results include to existing evidence suggesting that the risk of Alzheimer’s illness in later on life is affected by our wellness earlier in daily life.


“This study goes 1 stage more by suggesting that what happens in the womb might also be important. We’re pleased to have funded this analysis, which has shed new light on the complicated picture of Alzheimer’s threat.


“Alzheimer’s is a challenging ailment and it really is most likely that our risk is affected by a number of distinct genetic and environmental factors.


“Study to recognize these factors can support equip us to take methods to avert the illness, but in the meantime, evidence suggests we can decrease our chance by consuming a healthful, balanced diet program, undertaking typical physical exercise, not smoking and retaining our blood stress and weight in examine.”


* The Telegraph is supporting new awards by the Alzheimer’s Society to celebrate the efforts of people, firms and communities to generate dementia-pleasant communities.


Entries for the dementia friendly awards will near on Friday 28 March. To enter please check out eligibility criteria at www.alzheimers.org.uk/dementiafriendlyawards



Alzheimer"s Condition chance might commence in the womb

3 Mart 2014 Pazartesi

Four ladies provided pioneering womb transplants impregnated via IVF

Swedish surgeons practicise before uterus transplant operations at Gothenburg University Hospital

The Swedish surgical staff practicising before the uterus transplant operations at the Sahlgrenska University Hospital in Gothenburg. Photograph: Johan Wingborg/AP




Four of nine girls given pioneering womb transplants in Sweden have now also had embryos transferred, the pioneering Swedish physician treating them has mentioned.


Dr Mats Brannstrom, professor of obstetrics and gynaecology at Gothenburg University, stated his crew had embarked on a programme of embryo transfer for the ladies, who have been either born with no a womb or misplaced it as a end result of cancer. All have ovaries so had been ready to create eggs that have been fertilised employing IVF.


Brannstrom predicted that 3 or four of the 9 females may possibly succeed in providing birth, which would be a planet first. Other womb transplants have taken spot in Saudi Arabia and Turkey but no recipients have but managed to have a kid. A pregnancy was accomplished in Turkey, but it failed after two months.


“We have already begun transferring embryos into 4 of the women and prepare to make attempts with the other individuals when they are ready,” mentioned Brannstrom. He would not say no matter whether any of the girls were pregnant at the moment. In a review published final week, the group mentioned that there have been “mild rejection episodes” in four females who obtained donated wombs. Two sufferers had to have the uterus eliminated since of problems.


Brannstrom’s approach is controversial because he is accepting wombs donated by living women, who are family members or buddies of his individuals. Elsewhere, wombs from dead donors have been utilised.


Dr Richard Smith, head of the United kingdom charity Womb Transplant United kingdom, which is striving to increase money to carry out transplants right here, has said that large chunks of blood vessels had to be eliminated from the donor as properly as the uterus itself, raising the dangers of the operation for the donor. In the United kingdom, there would be ethical inquiries since the operation is not a life-saving procedure, he stated.


The females will have to get medication throughout their pregnancy to make certain their physique does not reject the organ. They will also have to be watched carefully for how the womb progresses during pregnancy.


Dr Charles Kingsland, a spokesman for Britain’s Royal School of Obstetricians and Gynaecologists, explained: “There are questions about how the physiological changes in the uterus will impact the mother and no matter whether the transplanted uterus will be conducive to a increasing little one.”


Brannstrom stated the transplanted wombs would be removed soon after a maximum of two pregnancies.




Four ladies provided pioneering womb transplants impregnated via IVF

26 Ocak 2014 Pazar

Hopes for very first womb transplant little one

“A accomplishment would be an essential evidence of principle that a procedure is now available to cure uterine infertility.”


Earlier this month, Dr Brannstrom exposed that all 9 of the womb transplants his group performed among September 2012 and last April had been profitable, with only minor issues.


Eight of the recipients endure from MRKH syndrome, a congenital disorder which affects 1 in five,000 women and prevents the womb from creating.


The ninth had her womb removed soon after suffering cervical cancer.


Women with the syndrome have intact ovaries and produce eggs, which can be fertilised outdoors their bodies like other “test-tube” infants.


Attempts to enable the Swedish women to bear children are being followed closely by would-be mothers close to the globe.


“When I read about it I cried for a lot of hours,” stated Sandra Boine, a 26-12 months-old Norwegian income assistant with the situation.


She believes a hospital in her home nation might eventually be inclined to perform a equivalent operation.


“It implies a lot since I’ve now acquired a possibility to make a child on my very own. There’s hope for us now.” She explained that her mom and sister had each and every supplied to donate their womb to her, if the Swedish procedure proved productive.


Dr Brannstrom stated that due to the fact the operation was so new, it was extremely hard to estimate the possibility of achievement.


“We know the pregnancy fee in the standard population − the possibility for a single embryo would be about 25 per cent − so it may take some trials right up until we get a pregnancy, or we might be lucky and get a pregnancy very first time. We really do not know.”


A lady is only regarded as pregnant when an embryo effectively implants in the uterine wall.


Dr Brannstrom said that the 9 females who had obtained womb transplants had presently been deeply impacted by the experience.


“Some of them say that it is great just to have a time period. They say: ‘Now I truly feel like a true lady, a regular lady, for the first time.’”


However, Stina Järvholm, the psychologist functioning with Dr Brannstrom’s team, predicted that the individuals would be “more burdened” more than the next couple of months.


“It’s the gap in between hope and despair: ‘If everything performs out I could be on the first phase in direction of obtaining my baby, but I could also be on the 1st stage of making an attempt every thing and not getting a child anyhow’.”


Two other women had womb transplants prior to the Swedish programme.


One particular, who acquired a womb in Saudi Arabia in 2000, had it eliminated once more right after blood clots designed.


In 2011 a Turkish surgeon carried out a successful transplant and his patient became pregnant, but she miscarried last year.


“What is going to be remembered in the books of healthcare historical past is not who did the very first transplant in Saudi Arabia, or the crew that did the 9 transplants in Sweden,” Dr Brannstrom explained. “It’s who did the transplant which led to the very first child.” The Turkish transplant was from the entire body of a girl killed in an accident, but eight of Dr Brannstrom’s sufferers received their wombs from close relatives, lowering the chance of their bodies rejecting them.


His staff has also transplanted as numerous veins and arteries surrounding the womb as achievable, strengthening blood provide to the spot and so growing the opportunity of a productive pregnancy.


Dr Brannstrom estimates that his programme has created some 70 per cent of all analysis into womb transplants, with five PhD students establishing the operation on mice, rats, sheep, pigs and an estimated 80 baboons.


“We deserve it due to the fact we have carried out most of the study,” he stated.



Hopes for very first womb transplant little one