Articles tagged with Ovaries
Massachusetts General Hospital researchers isolated egg-producing stem cells from adult human ovaries, demonstrating that these cells can produce normal egg cells. The findings support the idea that female mammals continue producing eggs into adulthood.
A study published in the American Association for Cancer Research found that women who underwent bilateral oophorectomy before age 45 had lower bone mineral density and a higher prevalence of arthritis. The research suggests that clinicians should be aware of this association to provide early intervention if needed.
Research into Polycystic Ovary Syndrome (PCOS) and diabetes aims to improve the health of thousands of women in Cornwall. The study will investigate factors that increase the risk of diabetes in women with PCOS.
A recent study published in Obstetrics & Gynecology found that hysterectomies increase the risk of early menopause among younger women. The research tracked over 900 women for five years and found that 14.8% experienced menopause, compared to 8% of healthy controls.
A recent study found that menopause has little to no impact on the risk of developing diabetes. Instead, lifestyle changes such as losing 7% of body weight and exercising for at least 150 minutes a week can significantly lower the risk of diabetes in postmenopausal women.
A recent study found that early treatment with the diabetes drug metformin may prevent or delay the development of polycystic ovary syndrome (PCOS) in adolescents. The study, which compared early versus late metformin treatment, showed that early therapy prevented PCOS symptoms more effectively than late treatment.
New research finds that women with BRCA1/2 mutations who undergo prophylactic oophorectomy and take short-term HRT have a decreased risk of developing breast cancer. However, the procedure also increases the risk of early menopause and related quality-of-life issues.
Researchers at Oregon Health & Science University discovered a new approach to prevent ovarian cancer in high-risk women while maintaining fertility. The treatment involves removing the ovarian surface epithelium layer, which has no known function, without affecting ovary function or overall animal health.
Researchers have developed a protective strategy that shields primate ovaries from damage caused by radiation and chemotherapy. Pretreatment with the FDA-approved drug FTY720 preserves fertility in female rhesus monkeys, allowing successful pregnancies and healthy offspring.
A recent study found higher BPA levels in women with PCOS compared to controls, and an association between BPA and increased testosterone levels. Researchers suggest that BPA may exacerbate hormonal imbalances in women with PCOS.
Brown University researchers have created an artificial human ovary, enabling them to mature human eggs in a lab setting. The innovation could lead to fertility research and infertility treatments for cancer patients.
Exposure to low doses of BPA affects the earliest stages of egg production in the ovaries of developing mouse fetuses. The study reveals a striking down-regulation of mitotic/cell cycle genes, raising concerns about the reproductive lifespan of female mice.
Scientists have discovered that ovarian transplants from young mice can restore fertility and increase lifespan in aging female mice. The procedure, which has been performed with limited success in women so far, may also have a rejuvenating effect on their behavior. Researchers believe that similar procedures could be used to preserve ...
A new study finds women with polycystic ovary syndrome (PCOS) have higher bisphenol A (BPA) blood levels, associated with increased male hormones and reproductive problems. The study suggests that women with PCOS should limit their exposure to BPA due to its potential adverse effects on hormone balance.
A new study reveals that male sex hormones play a crucial role in regulating female fertility by controlling follicle growth and development. The research suggests that irregular levels of these hormones can lead to infertility, especially in women with polycystic ovarian syndrome.
A study published in the International Journal of Obesity found that male and female fat cells have distinct genetic profiles, which may contribute to differences in fat storage patterns. The researchers used mice with different sex hormone levels to determine whether hormones play a role in fat distribution.
A recent survey of women undergoing gynecologic surgery found that most were not concerned about the effects on their sex lives, despite 37% expressing worries about reduced desire after sterilization. Hormone levels are not affected by these procedures.
A new study suggests that elective removal of ovaries during hysterectomy may not be beneficial and could even increase the risk of other health problems. The study analyzed data from over 300,000 women who underwent the procedure, finding a link between oophorectomy and increased risks of coronary artery disease and hip fractures.
A woman gave birth to two healthy girls, Aviaja and Lucca, in 2007 and 2008, respectively, after receiving fertility treatment following an ovarian transplant. The breakthrough case report supports the use of cryopreservation of ovarian tissue as a valid method for fertility preservation.
Women with Polycystic Ovary Syndrome produce less adiponectin than healthy women, leading to increased insulin resistance and inflammation. This hormone helps regulate fat metabolism, glucose utilization, and reduces inflammation.
Researchers at EMBL uncover gene Foxl2 that maintains female traits in adult mice, reversing default pathway. The study has implications for reproductive medicine and may help treat sex differentiation disorders.
A new study published in the American Cancer Society's journal finds that young women with early-stage ovarian cancer can preserve future fertility by conserving at least one ovary or the uterus. Researchers analyzed data from over 1,800 patients and found those who conserved an ovary had similar survival rates for up to five years.
Researchers found that ultra-fast freezing of ovarian tissue can achieve the same success rate as fresh tissue in transplants, with a viability rate of 91.9% compared to 88.9%. The cortical grafting technique allows for simpler procedure with equally successful results, enabling women to have children later in life.
A new ovarian transplantation technique has successfully restored fertility in two patients who had lost their ovaries due to cancer treatment. The two-step procedure involves grafting small pieces of frozen ovarian tissue before the main transplant, allowing for faster recovery of ovarian function and improved response to stimulation.
Exposure to low doses of BPA during development can affect female reproductive health in rats, with early onset of puberty and ovarian malformations observed. The study suggests a link between low-dose BPA exposure and fertility issues in females.
A study at Massachusetts General Hospital found that image-guided drainage of tubo-ovarian abscesses avoided salpingo-oophorectomy in 95% of pelvic inflammatory disease cases and 72% overall. This non-surgical treatment preserves fertility and ovarian function.
A new MRI sequence, T2-weighted BLADE, improves image quality and reduces motion artifacts in female pelvis imaging. This allows radiologists to make more accurate diagnoses of uterine leiomyomas, ovarian cancers, and other abnormalities.
A recent lab study found that adolescent rats exposed to THC experienced lasting negative effects on learning and memory, even if they didn't have ovaries. The study suggests that THC use during critical developmental periods can sensitize females to the negative effects of THC later in life.
A study by Dr Tom Barber and colleagues found a genetic link between the FTO gene and PCOS susceptibility. The researchers analyzed 463 PCOS patients and 1336 female population controls, discovering that variants of the FTO gene influence fat mass and PCOS-susceptibility.
A new study published in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism found that obese women have detrimental changes in their ovaries, leading to poorer reproductive outcomes. Alterations in egg development and increased inflammation may contribute to infertility, the researchers suggest.
A study published in the Journal of Clinical Oncology found that leaving the ovaries intact during surgery for early-stage endometrial cancer has no survival benefit compared to removing them. This approach could spare women from surgery-induced early menopause, hot flashes, and increased risk of heart disease and osteoporosis.
Research in mice reveals genetic and hormonal factors contribute to migraines with aura, affecting women more frequently than men. Hormonal fluctuations, particularly estrogen, modulate an individual's susceptibility to migraines.
A gene essential for organ growth also regulates female but not male embryo sexual development, supporting a controversial hypothesis about mammalian sexual development. Researchers found that beta-catenin acts as an internal regulator of the pathway, which includes Wnt4 and R-spondin1 genes, leading to the formation of ovaries.
Researchers found that toads in suburban areas are less likely to suffer from reproductive system abnormalities than those near farms. The study highlights the difference between the impact of agriculture versus development on amphibians.
Tobacco plants have evolved a self-incompatibility system to reject unwanted pollen and maintain genetic diversity. Researchers have identified a new factor, Stigma Expressed Protein (NaStEP), which plays a crucial role in the rejection mechanism.
Researchers are studying the architecture and behavior of ovaries to find new treatments for fertility disease and age-related infertility. A new imaging device, resembling a tiny drum, is being developed to measure ovary rigidity and understand symptoms of polycystic ovary syndrome.
Researchers at the University of Missouri discovered significant changes in the brain's vascular system after menopause. The study advises extreme caution when using estrogen-based hormone therapies due to potential complications and adverse effects on vascular health.
Researchers found that mouse ovaries undergo significant gene expression changes as they age, unlike the limited changes seen in testes. A calorie-restricted diet reversed some of these aging effects, particularly in females.
Researchers identified gene mutations in FIGLA as a cause of premature ovarian failure, which can lead to infertility and other health issues. The study found three types of mutations in the gene, highlighting its importance in ovary function.
Researchers found that continuous oral contraceptives significantly improved pain and behavioral changes in women compared to standard 28-day birth control pills. The study also showed a significant decrease in moderate to heavy bleeding days among women who received the continuous birth control regimen.
Common uterine infections can damage ovaries and affect fertility in cows, similar to the impact on humans with sexually transmitted infections like Chlamydia. Researchers found that bacteria can leave toxins in egg-containing follicles, suppressing oestrogen production and preventing ovulation.
Researchers at UT Southwestern Medical Center have identified nearly 350 genes related to female fertility, providing a new understanding of the causes of female infertility. These discoveries may lead to improved diagnostic tests and tailored therapy for infertile women.
Research suggests that removing ovaries before menopause may lead to increased risks of cognitive decline and movement disorders such as Parkinson's disease. Women who underwent surgery at a younger age were found to be more likely to develop dementia and Parkinsonism.
The study found that women who had both ovaries removed but were treated with estrogen until age 50 did not have an increased risk of cognitive impairment or dementia. Women who had one or both ovaries removed before menopause faced a higher long-term risk of cognitive impairment or dementia compared to those who retained their ovaries.
PCOS is characterized by multiple health complications, including menstrual dysfunction, infertility, hirsutism, and metabolic syndrome. Research focuses on identifying the primary cause of PCOS, which may be linked to defects in the ovary, hypothalamic-pituitary axis, or abnormal insulin activity.
A woman with damaged ovaries due to chemotherapy and radiotherapy received a successful transplant from her genetically non-identical sister, restoring her ovarian function. After six months, she started menstruating and had mature oocytes retrieved for fertilization.
Researchers at Cedars-Sinai are studying a gene that may play a role in the development of polycystic ovary syndrome (PCOS), a condition characterized by insulin resistance, hirsutism, and other symptoms. The study aims to better understand the molecular mechanisms underlying PCOS and potential markers for risk.
A study by USF researchers debunks the theory that older women can generate new eggs, challenging a controversial finding made by Harvard scientist Jonathan Tilly. The researchers found no evidence of egg stem cells in ovarian cells biopsied from 12 women between 28 and 53 years old.
Researchers developed a new ultrasound-based test that can accurately predict ovarian response and IVF success. The antral follicle count was found to be an effective predictor of egg production, providing a less costly and invasive alternative to current hormone-based tests.
Researchers aim to identify defective point in insulin signalling pathway for PCOS treatment. Insulin resistance linked to PCOS symptoms, fertility problems, and type-2 diabetes risk.
A new study found a genetic link between the 'diabetes gene' (calpain-10) and polycystic ovary syndrome (PCOS), which affects up to five percent of females. The study suggests that specific variants of the CAPN10 gene may contribute to PCOS susceptibility, providing hope for diagnosis and treatment.
Researchers found that freezing and delaying embryo transfer reduces severe ovarian hyperstimulation syndrome and its life-threatening consequences, resulting in better overall outcomes. The study analyzed medical records of 1,002 patients who underwent IVF between 2000 and 2004.
Researchers report that polycystic ovary syndrome is significantly higher among overweight and obese Spanish women compared to lean women. The study, which evaluated 113 consecutive patients, found a marked increase in the prevalence of polycystic ovary syndrome among unselected overweight and obese women.
Women under 45 who have both ovaries removed are at higher risk of death from hormone-related cancers and neurological diseases. The risk increases with age, suggesting that oestrogen may be protective at younger ages but less important after menopause.
A new study by Mayo Clinic found that preventive ovary removal in younger women may lead to an increased risk of death from all causes, including estrogen-related cancers and diseases of the brain and cardiovascular system. The study suggests that hormone replacement therapy is crucial for these women.
Researchers at NYU Langone Health have unraveled the signals governing ovarian development, revealing a feedback loop that ensures sufficient primordial germ cells in the ovary. This discovery has implications for understanding organ growth, regeneration, and disease treatment using stem cells.
A study published in JAMA found that removing ovaries can significantly reduce the risk of ovarian, fallopian tube, and peritoneal cancers in women with BRCA1 or BRCA2 gene mutations. The procedure offers an 80% reduction in cancer risk, making it a recommended preventive measure for these high-risk individuals.
Researchers find that female mice can maintain a steady number of eggs throughout adulthood, contradicting the long-held assumption that eggs decline with age. The study's findings suggest potential directions for ovarian stem cell research and fertility treatments.
Researchers found that the Wnt4 and Fgf9 genes are initially balanced before Sry triggers a cascade leading to testis formation. In contrast, an imbalance between these signals determines sex determination in vertebrates.
A study published by Mayo Clinic researchers found that surgical ovary removal elevates the risk of dementia in younger women, possibly due to insufficient estrogen. Women who underwent the surgery at a younger age may be more susceptible to cognitive decline, highlighting the need for ongoing hormone replacement therapy.