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.
Credit: AI Generated Image
Fatty liver disease has traditionally been associated with obesity and alcohol consumption. However, in clinical practice, we are increasingly seeing fatty liver in individuals who may not appear overweight and who do not consume alcohol. This changing pattern reflects a larger problem: the close relationship between liver health, metabolic health, and lifestyle.
Non-alcoholic fatty liver disease (NAFLD), now increasingly termed metabolic dysfunction-associated steatotic liver disease (MASLD), occurs when excess fat accumulates in the liver in association with metabolic risk factors. A systematic review and meta-analysis of Indian studies estimated the pooled prevalence of NAFLD among adults at 38.6%, meaning that roughly one in three adults may be affected. The prevalence was approximately 28.1% in average-risk populations and increased to 52.8% among individuals with higher metabolic risk.
What is particularly important for Indians is that fatty liver cannot be identified simply by looking at body weight. South Asian populations can develop visceral or abdominal fat and metabolic abnormalities even at relatively lower body mass indices. A South Asian meta-analysis found that NAFLD affected approximately 26.9% of adults in the general population, while prevalence rose to 54.1% among people with metabolic diseases. Importantly, around 43.4% of people with NAFLD in the analysis were not obese.
Diabetes, hypertension, dyslipidaemia, central obesity and metabolic syndrome are therefore important warning signs. In my practice, I often emphasise that a normal-looking body does not necessarily mean a metabolically healthy body. Waist circumference, blood sugar, lipid profile, liver enzymes, and, when indicated, liver imaging provide a much more meaningful risk assessment.
The other misconception is that fatty liver is harmless. Simple steatosis may remain stable in many individuals, but some patients develop inflammation and progressive fibrosis, eventually leading to cirrhosis and liver cancer. A systematic review of hepatocellular carcinoma in India also found that the proportion of cases associated with NAFLD has been increasing, although viral hepatitis remains an important cause. ([PubMed][3])
There is also a broader gastroenterological concern. Digestive and liver health are closely connected with dietary patterns, physical activity, and metabolic health. Excessive intake of refined carbohydrates, sugary beverages, ultra-processed foods, and excessive calories, combined with inadequate physical activity, can contribute to metabolic dysfunction.
The good news is that lifestyle modification can make a substantial difference in fatty liver. Weight reduction, regular physical activity, improved dietary quality, adequate sleep, and better control of diabetes and cholesterol can help reduce liver fat and metabolic risk. Importantly, management should be individualised rather than based on crash diets or unregulated supplements.
Fatty liver should therefore be viewed not merely as an incidental finding on an ultrasound report, but as a metabolic warning signal. Early identification allows us to intervene before irreversible liver damage develops. For patients, the message is simple: taking care of the liver also means taking care of the heart, metabolism, and overall digestive health.
The statistics cited above are based on published systematic reviews/meta-analyses and IARC/WHO data; prevalence estimates vary depending on the population and diagnostic method.
Dr. Pradipta Kr. Sethy, Director Gastroenterology, Manipal Hospitals EM Bypass & Mukundupur
Credit: iStock
Endometriosis is a chronic disease affecting about 1 in 10 women worldwide. Diagnosis and treatment remain challenging, particularly for women with severe pain and other complications.
Now, US researchers have developed a targeted nanotherapy that showed promising results against endometriosis in early testing.
Scientists at Washington State University found that the treatment reduced endometriosis lesions, symptoms and pain sensitivity after a single dose in mice.
The findings were published in Advanced Healthcare Materials. Researchers hope to eventually test the treatment in humans.
Also read: Endometriosis Can Take Years To Diagnose But This AI Tool Can Identify Its Signs In 18 Milliseconds
The drug, niclosamide, was previously used to treat intestinal tapeworm infections in humans and is still used in animals.
Earlier research found that niclosamide could reduce endometriosis lesions and inflammation. However, it is not suitable for long-term use, limiting its potential as a treatment for a chronic condition.
To overcome this, researchers developed a nanotherapy that delivers niclosamide directly to cells associated with endometriosis.
“We found the disease-specific immune cell, and then we had a drug, but we couldn’t target the cell with the drug alone,” said Kanako Hayashi, professor at WSU’s School of Molecular Biosciences.
“So we used this nanocarrier that delivers the drug specifically to the disease site,” Hayashi said.
The team used a nanosized molecule called a dendrimer to bind with niclosamide and deliver it in a more soluble form.
In mice, a single injection reduced the size and number of lesions and lowered pain sensitivity.
“Although we still need to clear multiple phases, this study is telling us the efficacy is strong, and this nanocarrier is stable, so far, for two weeks—and we think we can go longer,” Hayashi said.
If the treatment remains stable for longer periods, researchers believe it could potentially be given less frequently. Hayashi said a monthly injection could be possible in the future, but this would depend on further testing.
READ: Endometriosis Taught Me To Always Listen To My Body, Says Model Padma Lakshmi
Not yet. The treatment has only been tested in mice and must undergo further safety and efficacy testing before human trials.
Researchers also do not yet know whether it would ultimately be given as an injection or IV infusion.
Endometriosis affects an estimated 190 million women worldwide. It occurs when tissue similar to the lining of the uterus grows outside the uterus.
It can cause severe pelvic pain, painful periods, pain during sex and infertility. Symptoms are sometimes dismissed as a “bad period,” contributing to delays in diagnosis.
There is currently no cure, although treatments can help manage symptoms.
Treatment depends on symptoms, disease severity and fertility goals.
Hormonal medicines can help control pain and disease activity but may cause side effects and can affect fertility while being used.
Painkillers, including non-steroidal anti-inflammatory drugs, may help manage discomfort.
Laparoscopic surgery can remove lesions and endometriotic cysts and may help restore pelvic anatomy. It can also improve fertility in some women, although the disease can recur.
Lifestyle measures such as regular exercise, stress management and dietary changes may also support symptom management.
Credit: iStock
Lung development of the fetus depends on the physical and genetic health of the parents.
At birth, breathing begins with air from the environment, containing oxygen and other gases, and is influenced by known and unknown forces of nature. The air then passes through well-developed nostrils, which regulate the air temperature and prevent foreign bodies from entering the body and help protect against diseases.
Breath travels through the nasal passages, sinuses, pharynx (throat), larynx (voice box), trachea (breathing tubes), bronchi, small airways, air sacs, interstitial membrane, into thin-walled blood vessels that transport oxygen and collect gases and other substances to be expelled from the body.
The diaphragm, the muscle that separates the lungs from the abdomen, is the most powerful breathing apparatus.
The lungs in the early stages of life undergo dramatic changes from newborn→ infancy→ childhood→ puberty→ teenage→ adults→ middle age→ seniors. Factors influencing lung health risks keep changing with age, depending on genetics, environment & external factors.
The lungs and airways perform non-respiratory functions of protecting the body against harmful insults, both from within and external threats, and it also protects against insults received from other organs of the body. The lungs have a powerful defense mechanism protecting the body and also have hormonal, physical, and immunological defense mechanisms.
© $2026 Times Horizon Private Limited