Can Damaged Sperm Lead To Pregnancy Complications?
Pregnancy is usually a time of happiness and hope, but it also brings in the unexpected. While there is much talk placed on the health of the expectant mother, the quality sperm coming from the father could dramatically change the outcome of pregnancy. The latest study suggests the risks of sperm DNA damage, even increasing the risks of complications preeclampsia and birth prematurity.
In a groundbreaking research study conducted by scientists from Lund University in Sweden, scientists discovered that DNA damage in sperm increases the risk almost up to double that of preeclampsia, this is a dangerous condition that may arise during pregnancies characterized by high blood pressure. In addition, DNA anomalies also increase the risk of premature births, and this further entails increased related adverse health outcomes for infants born through such conditions.
The next step would be to find out which group of men respond best to methods to prevent and treat sperm DNA damage, and to test these methods to prevent pregnancy complications," said Dr. Amelie Stenqvist, a lecturer at Lund University. According to this study, a significant message is put forward that paternal health assumes an important role in a successful pregnancy.
It focused its research on men, specifically whose sperm contained high levels of DNA fragmentation. For instance, some 20% to 30% of babies born via in vitro fertilization have fathers whose sperm contains damaged DNA. The DNA fragmentation index, an indicator to assess the percentage of DNA damage in sperm, indicated that when the percentage of sperm with a DFI above 30% was observed, they had almost no chance of resulting in natural conception. Even a DFI greater than 20% showed that the chances of getting pregnant are highly risky as the risk factor for pregnancy complications like preeclampsia is much high.
Uncommon Complications during Pregnancy
The most alarming complication during pregnancy is preeclampsia. It affects approximately 5% to 8% of pregnancies worldwide, which can cause fatal conditions for both the mother and the baby. The new findings now point out that sperm DNA damage may contribute to this condition, especially if it is due to assisted reproductive techniques such as IVF pregnancies. The research found that a DFI above 20% doubled the risk of preeclampsia from a mere 5% to almost 11% per.
Apart from causing preeclampsia, DNA fragmentation in sperm is also known to increase the risk for prematurity. Most premature babies experience respiratory, neurological, and developmental complications. Therefore, some degree of early intervention might be important for prospective parents.
Some of the rarer, though serious complications include placental abruption, which is the separation of the placenta from the uterine wall and intrauterine growth restriction, a condition by which the baby does not grow normally in the womb. These conditions though rare are potentially catastrophic both to the mother and the child. Results from this study may help in establishing the contribution of the father in such pregnancies.
Further study into sperm DNA damage is of urgent interest with regard to its consequences for pregnancy outcomes. According to Professor Aleksander Giwercman of Lund University in the field of Reproductive Medicine, "the analysis of DFI should be introduced as routine test in all fertility clinics.". "It could give answers to couples who are having difficulties with infertility, but our latest result also shows that DFI analysis can be a method to identify high-risk pregnancies, explained Giwercman.
For many, DNA fragmentation in sperm is often treatable. Common causes are oxidative stress, age, smoking, being obese, and infections. Addressing these elements will likely reduce DNA damage in sperm for men, raising the chances for a healthy pregnancy and baby.
Overall, the study importance should take into consideration paternal as well as maternal health towards reaching for a healthy pregnancy. Though DNA fragmentation in the sperm is supposed to increase the risk factors for complications in pregnancies, the advances into novel treatment approaches and tests are likely to alleviate complications in many families. Thus the findings of this study offer optimism and pave a pathway to more holistic fertility treatments in the future.
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A mammogram is routinely used to detect early signs of breast cancer, but the imaging test may also provide clues about a woman’s cardiovascular health.
Cardiovascular disease is a major cause of death among women. Yet, experts say heart disease in women can be overlooked because symptoms and risk factors may differ from the patterns traditionally associated with men.
Prof Rob Galloway of University Hospitals Sussex NHS Foundation Trust, writing in the Daily Mail, highlighted the need to identify cardiovascular disease in women earlier.
Citing a 2021 The Lancet study, he noted that women with cardiovascular disease remain “understudied, under-recognized, underdiagnosed, and undertreated.”
Galloway said he regularly sees women, particularly those in their 60s, arriving in emergency care with heart attacks after earlier symptoms were attributed to less serious causes.
“If that had been recognized, she could have been admitted, and if needed, had a stent (a mesh tube) inserted to open the artery before it was blocked,” he wrote.
“The truth is doctors are not as good as we should be at recognizing heart disease in women, or understanding their risk,” he added.
Also read: New Breast Cancer Guidelines Recommend Mammograms Every Two Years for Women
Women may experience heart attacks differently, with symptoms such as breathlessness, nausea, fatigue, or back, neck and jaw pain. Galloway also highlighted female-specific risk factors, which include:
He said these factors are not always routinely included when assessing a woman’s long-term cardiovascular risk.
Read More: World Heart Day: You Feel Healthy. But Plaque May Already Be Building In Your Arteries In Your 20s
Prof Galloway suggested that routine breast screening could potentially offer another opportunity to identify cardiovascular risk.
When blood vessels are damaged, calcium can accumulate in their walls. Mammograms can sometimes detect calcium deposits in the arteries of the breast, known as breast arterial calcification (BAC).
BAC is different from calcium buildup in the coronary arteries, but its presence has been associated with a higher risk of cardiovascular events such as heart attack and stroke. Some radiologists may therefore flag the finding to the treating doctor.
Prof Galloway also discussed the potential role of artificial intelligence in identifying and measuring breast arterial calcification.
A European Heart Journal study used AI to assess mammograms from over 123,500 US women. Compared with no calcification, mild breast arterial calcification was linked to a 30% higher cardiovascular event risk, moderate to 75–80% higher risk, and severe to roughly three times higher risk.
The association persisted even after researchers accounted for established cardiovascular risk factors such as obesity and smoking.
Prof Galloway said that the potential advantage is that the mammogram has already been performed for breast screening. If arterial calcification is identified, that information could potentially be included with the screening result and prompt a broader cardiovascular risk assessment.
Depending on the woman's overall risk, doctors could then consider measures such as more intensive management of blood pressure or cholesterol.
A coronary artery calcium scan is another way to assess calcium buildup in the arteries supplying the heart. It uses a CT scan to detect and measure coronary artery calcium and can help inform cardiovascular risk assessment in appropriate patients.
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One may dismiss a recurring ache in the calf or thigh while walking may as a muscle problem, especially if it settles after sitting or resting. But leg pain that repeatedly appears while walking and eases after resting can sometimes be due to a circulation problem called peripheral artery disease (PAD).
The condition occurs when arteries that carry blood to the legs become narrow, usually because of atherosclerosis, which is the buildup of fatty deposits inside blood vessels. PAD can be a major sign that the same process is also affecting arteries in the heart and brain, signalling a major cardiovascular risk.
PAD can be difficult to identify as it comes with ordinary symptoms that could be tied to ageing or injury.
Women may neglect it as they may experience less obvious symptoms, including leg fatigue or weakness rather than cramping. This is because the condition is affected by ageing, fitness, or a musculoskeletal issue.
Apart from pain during walking, possible symptoms include:
Some people may have no noticeable symptoms, which can allow PAD to progress without being recognised, leading to serious complications.
Also read: Pomegranate Compound Improves Heart Function By Up To 80% In Early Heart Failure Study
The disease has prompted a new Canadian National Action Plan for Peripheral Artery Disease, developed by vascular medicine experts with the Canadian Society of Vascular Medicine and Prevention.
The plan calls for greater public awareness, early diagnosis, better access to ankle-pressure testing, supervised exercise programmes and specialised care for people with PAD.
The Canadian authors also said that PAD can be difficult to diagnose in rural and remote communities and among Indigenous Peoples and other underprivileged populations, where access to preventive care and vascular specialists may be limited.
Delayed diagnosis can mean that people are only identified after complications like non-healing wounds or in severe cases, amputation.
PAD happens when narrow and blocked arteries reduce the blood flow to the legs. When the muscles need more oxygen during walking or exercise, the reduced circulation can lead to uncomfortable pain.
This symptom is called intermittent claudication. The pain usually develops in the calf, thigh or buttocks while walking. It subsides or improves after sitting down or resting the legs.
But not everyone experiences this symptom. Some may instead face tiredness in the legs, weakness, numbness or just discomfort, making it easier to dismiss the symptom.
The arteries in the legs are not isolated from the rest of the circulatory system. PAD is usually caused due to atherosclerosis, the same underlying process that could lead to thinner arteries supplying blood to the heart and brain.
As a result, having PAD can indicate a higher risk of heart attack, stroke and other cardiovascular complications. PAD risk increases with age, but several other lifestyle factors can contribute. These include:
Diabetes is most likely to contribute to PAD because persistently high blood sugar can damage blood vessels and increase the risk of atherosclerosis.
If leg pain or unusual tiredness keeps interrupting your life, it is worth getting evaluated, particularly if you have diabetes, smoke or have high blood pressure or cholesterol.
Doctors may assess circulation using an ankle-brachial index (ABI), which compares blood pressure in the ankle with blood pressure in the arm.
Treatment may include lifestyle changes like increasing physical activity, quitting smoking and medicines to manage cholesterol, blood pressure, and blood clotting risk. Severe blockages may also require medical procedures.
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There are many patients with CKD and CKD touches more than just the kidneys. CKD also influences parts of the body and as kidney function falls changes in the body can affect the brain. This may raise the chance of memory problems trouble concentrating and other types of impairment. For people living with CKD, those whose disease is advanced protecting cognitive health can become an important part of overall care.
CKD can arise from causes with diabetes as a leading one. In some groups diabetes accounts for than half of CKD cases. When diabetes meets CKD, the risk of vascular disease rises. This disease builds fatty deposits inside blood vessels. If those vessels feed the brain blood flow can drop. Reduced brain blood flow can lead to problems and raise the risk of dementia.
Another important factor is the build‑up of waste in the blood. Healthy kidneys waste and excess substances. When CKD lowers kidney function these substances linger. The lingering waste can disturb brain function. Symptoms may include trouble paying attention, slower thinking, confusion or memory problems.
Electrolyte disturbances can also play a role especially when CKD changes the balance of minerals in the body.
Hyponatremia or abnormally low levels of sodium in the blood is relatively common in people with CKD. It can disturb brain function.
Depending on severity and how fast it appears hyponatremia can cause confusion, difficulty concentrating, drowsiness and in cases more serious neurological symptoms.
Also read: Diabetes Linked To 55% Risk Of Kidney Disease, Heart Failure Or Death Within 10 Years: Study
Treatment‑related factors may also be relevant for some patients.
In the past dialysis patients who received aluminium‑containing medicines, such as some antacids or phosphate‑binding preparations faced a risk of aluminium build‑up. High levels of aluminium were linked to problems, including cognitive impairment. Today dialysis practices and medicines have cut this risk dramatically so aluminium is now an issue rather than a common cause of cognitive problems in dialysis patients.
As CKD moves forward into advanced stages the risk of cognitive impairment grows. Many factors can act together: disease, metabolic and electrolyte changes, anaemia, inflammation, heart complications and the build‑up of toxins that healthy kidneys would normally flush away.
Not every person with CKD will develop dementia. Cognitive changes should not be brushed off as normal ageing. New problems, with memory, concentration orientation or daily tasks need to be talked about with a doctor.
Early recognition is important because some of these factors can be treated or reversed.
Keeping diabetes and blood pressure under control managing heart risk factors correcting electrolyte imbalances and getting kidney care all help protect both kidney and brain health.
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