London, May 1: Eating lots of refined carbohydrates, particularly white pasta and rice, may advance the start of menopause by about one-and-a-half years, warns a study.
The findings, published in the Journal of Epidemiology and Community Health, showed that high intake of healthy foods, such as oily fish and fresh legumes, such as peas and green beans, was associated with a later onset of menopause.
"There are a number of causes that have been considered for the relationship between age and start of menopause, such as genetic factors or behavioural and environmental exposures. But there are fewer studies that look at the impact of diet," said study lead author Yashvee Dunneram, a postdoctoral researcher at the University of Leeds in Britain.
The study used data from more than 14,150 women living in Britain. Along with a detailed diet questionnaire, an initial survey collected information on reproductive history and health.
When a follow up survey and questionnaire were conducted four years later, the researchers were able to assess the diets of the women who had experienced the onset of a natural menopause in the interim.
The average age at the start of the menopause for women in Britain is 51 years.
More than 900 women between the ages of 40 and 65 had experienced a natural start of their menopause at the time of the follow-up survey, meaning they had not had menstrual periods for at least 12 consecutive months and menopause had not been brought on by such things as cancer, surgery or pharmaceutical treatments.
Analysis of their diet showed that high intakes of oily fish were associated with a delayed start of menopause by nearly three years.
A diet with lots of refined pasta and rice showed that menopause was more likely to occur one-and-a-half years earlier than average.
"The age at which menopause begins can have serious health implications for some women," study co-author Janet Cade, Professor at the University of Leeds, said.
Previous studies have suggested that earlier onset of menopause is associated with lower bone density, osteoporosis and increased risk of cardiovascular diseases, while later menopause has been associated with a higher risk for breast, ovarian and endometrial cancers.
Even though the new study is observational and cannot prove any cause, the researchers offer some possible explanations behind their findings, according to a BBC report on Tuesday.
For example, legumes contain antioxidants, which may preserve menstruation for longer.
Similarly, omega-3 fatty acids found in oily fish, also stimulate antioxidant capacity in the body.
On the other hand, refined carbs increase the risk of insulin resistance, which can interfere with sex hormone activity and raise oestrogen levels.
This might increase the number of menstrual cycles leading to the egg supply running out faster, the BBC report said.
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Lucknow, Apr 15 (PTI): Emails claiming that bombs were planted in four district collectorate offices in Uttar Pradesh triggered a security alert on Tuesday, but nothing suspicious was found after the buildings were evacuated and extensively searched.
Soon after the emails were received by authorities in Firozabad, Aligarh, Barabanki and Chandauli, bomb disposal units, anti-sabotage checking teams, dog squads and local police were swiftly mobilised to the respective collectorate premises. All buildings were evacuated and thoroughly searched, officials said.
Authorities in all four districts said that no explosives or suspicious items were found.
Investigations are on to identify those responsible for sending the hoax emails, they added.
In Aligarh, a senior police officer told reporters, "Soon after the email was received, security forces reached the District Magistrate's office and evacuated the premises. A thorough inspection of the entire complex was conducted. While no suspicious items were found, the inspection is still ongoing as a precaution."
The official added that the threatening email was received on the official email ID of the Aligarh District Magistrate.
In Barabanki, District Magistrate Shashank Tripathi said, "Today, we received a threatening email on the official ID, claiming that explosives like RDX were planted in the collectorate campus.
"Though the information did not initially seem credible, we immediately alerted the Superintendent of Police and called in the bomb disposal squad, which carried out a thorough search. No suspicious object has been found so far. Efforts are underway to trace the source of the email."
Barabanki City Circle Officer Sumit Tripathi said the origin and authenticity of the email remain unclear.
"Investigations are ongoing to determine whether this was a mischief attempt or part of a larger conspiracy," he said.
In Chandauli, District Magistrate Nikhil Tikaram Funde said a person identifying himself as Gopal Swami had sent an email warning of a possible bomb blast at the collectorate, allegedly linked to political issues in Tamil Nadu.
"The sender even listed a Tamil Nadu address. We immediately alerted the Superintendent of Police and launched a complete search of the collectorate premises. Nothing suspicious was found. The email content appeared frivolous and lacked credibility, but we still acted with full caution," the DM said.
In Firozabad, a similar threat was received via email around Tuesday afternoon, stating that explosive material had been placed in the District Magistrate's office.
Superintendent of Police (City) Ravi Shankar Prasad said, "Upon receiving the email, a bomb disposal team, dog squad, local police from Matsena police station, and the SOG team carried out an intensive search of the premises. No explosives were found."
A case has been registered at the cyber police station based on a complaint by the Matsena SHO, and authorities are working to trace the sender of the email.