Calcium Supplements Linked to Higher Risk of Dementia in Some Women
For older women with certain health conditions, taking calcium supplements may be linked with an increased risk of dementia, according to a new study.
In older women with certain health conditions, taking calcium supplements may be associated with an increased risk of dementia, according to a new study.
Researchers found that women who had previously had a stroke and who regularly took calcium supplements at the start of the study were seven times more likely to develop dementia over the five-year period than women who had had a stroke but who did not take those supplements.
Researchers found that women who had previously had a stroke and had regularly taken calcium supplements at the start of the study were seven times more likely to develop dementia over the five-year period than women who had had a stroke but did not take these supplements.
Additionally, the researchers found that women who had signs of a disorder that affects blood low in the brain and who regularly took calcium supplements were twice as likely to develop dementia over flve years as women who had signs of this disorder but did not take those supplements.
In addition, researchers found that women who had signs of a blood-low brain disorder and who regularly took calcium supplements were twice as likely to develop dementia in flve years as women who had signs of this disorder but did not take these supplements.
However, while the study shows a link between taking calcium supplements and a higher risk of dementia in some women, it does not prove that taking calcium supplements causes dementia, sald study co-author Dr. Sike Kern, a Neuroscience researcher at the Unlversity of Gothenburg in Sweden.
However, while the study shows a link between taking calcium supplements and a higher risk of dementia in some women, it does not show that taking calcium supplements causes dementia, a salt study co-author Dr. Sike Kern, a Neuroscience researcher at the Unlversity of Göteborg, Sweden.
More research is needed before any recommendations for women regarding the potential risks of taking calcium supplements can be made, Kern said.
More research is needed before any recommendations can be made to women about the potential risks of taking calcium supplements, Kern said.
In the study, the researchers looked at the medical history of 700 women between ages 70 and 92 who did not have dementia at the start of the study.
In the study , the researchers looked at the medical history of 700 women between the ages of 70 and 92 who did not have dementia at the start of the study.
The researchers asked the women if they were regularly taking calcium supplements and tested their memory and thinking skills. The scientists also scanned the brains of 47 of the participants.
The researchers asked the women if they were taking calcium supplements on a regular basis and tested their memory and thinking skills. The researchers also scanned the brains of 47 of the participants.
The researchers found that 54 women had had a stroke before the study started, and 98 women were taking cacium supplements at the start of the study. Among the women who had their brains scanned at the start of the study, 71 percent had lesions on their brains' white matter, which is a marker for cerebrovascular disease -a group of disorders that affect blood flow in the brain. Such lesions are common in older adults, with one review study estimating that anywhere from 50 percent to 98
percent of elderly adults may have them.
The researchers found that 54 women had a stroke prior to the start of the study, and 98 women had cacium supplements at the start of the study. Among the women who had their brains scanned at the start of the study, 71 per cent had lesions of white matter in their brains, which is a marker for cerebrovascular disease-a group of disorders that affect the flow of blood in the brain. In older adults, with one review study estimated to be anywhere from 50 percent to 98 percent.
Percent of older adults may have them.
The researchers then followed all the women for five years, and found that 89 women developed dementia, and 54 women had strokes during this time period, according to the findings, published today (Aug. 17) in the Journal Neurology.
The researchers then followed all women for five years and found that 89 women had dementia and 54 women had strokes during this time period, according to the findings published today (Aug. 17) in the Journal Neurology.
When the researchers looked at the relationship between taking calcium supplements at the start of the study and the women's risk of developing dementia during the study period, it turned out that this risk was higher, but only for the women who had signs of cerebrovascular disease at the start of the study or who had previousy had a stroke. (Cerebrovascular disease is sometimes defined to also include stroke.
When the researchers looked at the relationship between taking calcium supplements at the start of the study and the women's risk of developing dementia during the study period, it turned out that this risk was higher, but only for women who had signs of cerebrovascular disease at the start of the study or who had previously had a stroke. (Cerebrovascular disease is also sometimes defined in also include stroke.
But in this study, the researchers did not Include stroke in their definition of cerebrovascular disease, and only Included other types of cerebrovascular diseases.)
In this study, however, the researchers did not include stroke in their definition of cerebrovascular disease, and only other types of cerebrovascular disease were included.)
For example, six of 15 women who had previously had a stroke and took calcium supplements developed dementia during the study period. In comparison, a smaller proportion-12 out of 93 women who had previously had a stroke but did not take supplements-developed dementia during the same time period. [10 Things You Didn't Know About the Brain]
For example, six of the 15 women who had previously had a stroke and had taken calcium supplements developed dementia during the study period. In comparison, 12 out of 93 women who had previously had a stroke but did not take supplements had developed dementia during the same period of time. [10 Things You Did Not Know About The Brain]
The researchers said that they don't know for sure why the use of calcium supplements may be linked to a higher risk of dementia in women with these conditions.
The researchers indicated that they do not know for sure why the use of calcium supplements may be associated with a higher risk of dementia in women with these conditions.
"The mechanism for the harmful effect of calcium supplementation is not fully understood," Kern told Live Science.
"The mechanism for the harmful effect of calcium supplementation is not fully understood," Kern said to Live Science.
However, it may be that calcium supplements affect blood vessels and thus even potentially alter the low of blood in these vessels, Kern said. previous research has linked problems with blood vessels to a greater risk of dementia.
However, it may be that calcium supplements affect the blood vessels and, as a result, potentially alter the low blood levels in these vessels, Kern said. Previous research has linked problems with blood vessels to a higher risk of dementia.
Dr. Marc Gordon, chlef of neurology at Zucker Hillside Hospital In Glen Oaks, New York, who was not Involved In the study. also said that It ls too early to determine whether calcium supplements might directly cause dementia in some women.
Dr. Marc Gordon, klef of neurology at Zucker Hillside Hospital in Glen Oaks, New York, who was not involved in the study. It was also said that it was too early to determine whether calcium supplements could directly cause dementia in some women.
The numbers of women who were taking supplements in the study were small, he said.Future studies with more participants should be conducted, be said.
The number of women taking supplements in the study was small, he said. Future studies with more participants should be conducted, he said.
"All of that said, I think it raises a concern that there is certainly a rationale for thinking that calcium supplements could have an adverse effect on outcomes, particularly in women wlth cerebrovascular disease," he said.
"All of that said, I think it raises concern that there is certainly a rationale for thinking that calcium supplements could have an adverse effect on outcomes, particularly in women with cerebrovascular disease," he said.
"People have a tendency to assume that dietary supplements are automaticaly Innocuous, (but) high levels of supplementation as opposed to Just dietary intake [of calcium] could conceivably have some deleterlous effects," be said.
"People tend to assume that dietary supplements are automatically innocuous, (but) high levels of supplementation as opposed to just [calcium] dietary intake could conceivably have some deleterious effects," it says.
In older women with certain health conditions, taking calcium supplements may be associated with an increased risk of dementia, according to a new study.
Researchers found that women who had previously had a stroke and who regularly took calcium supplements at the start of the study were seven times more likely to develop dementia over the five-year period than women who had had a stroke but who did not take those supplements.
Researchers found that women who had previously had a stroke and had regularly taken calcium supplements at the start of the study were seven times more likely to develop dementia over the five-year period than women who had had a stroke but did not take these supplements.
Additionally, the researchers found that women who had signs of a disorder that affects blood low in the brain and who regularly took calcium supplements were twice as likely to develop dementia over flve years as women who had signs of this disorder but did not take those supplements.
In addition, researchers found that women who had signs of a blood-low brain disorder and who regularly took calcium supplements were twice as likely to develop dementia in flve years as women who had signs of this disorder but did not take these supplements.
However, while the study shows a link between taking calcium supplements and a higher risk of dementia in some women, it does not prove that taking calcium supplements causes dementia, sald study co-author Dr. Sike Kern, a Neuroscience researcher at the Unlversity of Gothenburg in Sweden.
However, while the study shows a link between taking calcium supplements and a higher risk of dementia in some women, it does not show that taking calcium supplements causes dementia, a salt study co-author Dr. Sike Kern, a Neuroscience researcher at the Unlversity of Göteborg, Sweden.
More research is needed before any recommendations for women regarding the potential risks of taking calcium supplements can be made, Kern said.
More research is needed before any recommendations can be made to women about the potential risks of taking calcium supplements, Kern said.
In the study, the researchers looked at the medical history of 700 women between ages 70 and 92 who did not have dementia at the start of the study.
In the study , the researchers looked at the medical history of 700 women between the ages of 70 and 92 who did not have dementia at the start of the study.
The researchers asked the women if they were regularly taking calcium supplements and tested their memory and thinking skills. The scientists also scanned the brains of 47 of the participants.
The researchers asked the women if they were taking calcium supplements on a regular basis and tested their memory and thinking skills. The researchers also scanned the brains of 47 of the participants.
The researchers found that 54 women had had a stroke before the study started, and 98 women were taking cacium supplements at the start of the study. Among the women who had their brains scanned at the start of the study, 71 percent had lesions on their brains' white matter, which is a marker for cerebrovascular disease -a group of disorders that affect blood flow in the brain. Such lesions are common in older adults, with one review study estimating that anywhere from 50 percent to 98
percent of elderly adults may have them.
The researchers found that 54 women had a stroke prior to the start of the study, and 98 women had cacium supplements at the start of the study. Among the women who had their brains scanned at the start of the study, 71 per cent had lesions of white matter in their brains, which is a marker for cerebrovascular disease-a group of disorders that affect the flow of blood in the brain. In older adults, with one review study estimated to be anywhere from 50 percent to 98 percent.
Percent of older adults may have them.
The researchers then followed all the women for five years, and found that 89 women developed dementia, and 54 women had strokes during this time period, according to the findings, published today (Aug. 17) in the Journal Neurology.
The researchers then followed all women for five years and found that 89 women had dementia and 54 women had strokes during this time period, according to the findings published today (Aug. 17) in the Journal Neurology.
When the researchers looked at the relationship between taking calcium supplements at the start of the study and the women's risk of developing dementia during the study period, it turned out that this risk was higher, but only for the women who had signs of cerebrovascular disease at the start of the study or who had previousy had a stroke. (Cerebrovascular disease is sometimes defined to also include stroke.
When the researchers looked at the relationship between taking calcium supplements at the start of the study and the women's risk of developing dementia during the study period, it turned out that this risk was higher, but only for women who had signs of cerebrovascular disease at the start of the study or who had previously had a stroke. (Cerebrovascular disease is also sometimes defined in also include stroke.
But in this study, the researchers did not Include stroke in their definition of cerebrovascular disease, and only Included other types of cerebrovascular diseases.)
In this study, however, the researchers did not include stroke in their definition of cerebrovascular disease, and only other types of cerebrovascular disease were included.)
For example, six of 15 women who had previously had a stroke and took calcium supplements developed dementia during the study period. In comparison, a smaller proportion-12 out of 93 women who had previously had a stroke but did not take supplements-developed dementia during the same time period. [10 Things You Didn't Know About the Brain]
For example, six of the 15 women who had previously had a stroke and had taken calcium supplements developed dementia during the study period. In comparison, 12 out of 93 women who had previously had a stroke but did not take supplements had developed dementia during the same period of time. [10 Things You Did Not Know About The Brain]
The researchers said that they don't know for sure why the use of calcium supplements may be linked to a higher risk of dementia in women with these conditions.
The researchers indicated that they do not know for sure why the use of calcium supplements may be associated with a higher risk of dementia in women with these conditions.
"The mechanism for the harmful effect of calcium supplementation is not fully understood," Kern told Live Science.
"The mechanism for the harmful effect of calcium supplementation is not fully understood," Kern said to Live Science.
However, it may be that calcium supplements affect blood vessels and thus even potentially alter the low of blood in these vessels, Kern said. previous research has linked problems with blood vessels to a greater risk of dementia.
However, it may be that calcium supplements affect the blood vessels and, as a result, potentially alter the low blood levels in these vessels, Kern said. Previous research has linked problems with blood vessels to a higher risk of dementia.
Dr. Marc Gordon, chlef of neurology at Zucker Hillside Hospital In Glen Oaks, New York, who was not Involved In the study. also said that It ls too early to determine whether calcium supplements might directly cause dementia in some women.
Dr. Marc Gordon, klef of neurology at Zucker Hillside Hospital in Glen Oaks, New York, who was not involved in the study. It was also said that it was too early to determine whether calcium supplements could directly cause dementia in some women.
The numbers of women who were taking supplements in the study were small, he said.Future studies with more participants should be conducted, be said.
The number of women taking supplements in the study was small, he said. Future studies with more participants should be conducted, he said.
"All of that said, I think it raises a concern that there is certainly a rationale for thinking that calcium supplements could have an adverse effect on outcomes, particularly in women wlth cerebrovascular disease," he said.
"All of that said, I think it raises concern that there is certainly a rationale for thinking that calcium supplements could have an adverse effect on outcomes, particularly in women with cerebrovascular disease," he said.
"People have a tendency to assume that dietary supplements are automaticaly Innocuous, (but) high levels of supplementation as opposed to Just dietary intake [of calcium] could conceivably have some deleterlous effects," be said.
"People tend to assume that dietary supplements are automatically innocuous, (but) high levels of supplementation as opposed to just [calcium] dietary intake could conceivably have some deleterious effects," it says.
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