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Common medical condition seen years before dementia develops, study reveals

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New research has identified an association between late-onset dementia and certain infections.

The study, published in the journal PLOS Medicine, investigated the link between the two, exploring whether the connection could stem from other health issues stemming from severe infections.

Researchers at the University of Helsinki, Finland, considered 170 common hospital-treated diseases that occurred one to 21 years before diagnosis in more than 65,000 patients with dementia aged 65 and older.

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After narrowing the list down to 29 diseases showing the strongest link to dementia, two were infections – cystitis (a bacterial/urinary tract infection) and general bacterial infection.

The other diseases were non-infectious, including mental disorders as well as digestive, endocrine, cardiovascular and neurological diseases, as well as injuries.

Nearly half (47%) of dementia cases came after one of the 29 identified diseases. 

Even after adjusting for these diseases, the link between dementia and infection remained intact, the researchers found. These infections typically occurred about five to 6-½ years before dementia diagnosis.

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Those with hospital-treated cystitis and bacterial infection, for example, had about a 19% higher rate of late-onset dementia.

Overall, the findings “support the possibility that severe infections increase dementia risk,” the researchers concluded.

As the development of dementia often takes “years or even decades,” the findings suggest that severe infections “might accelerate underlying cognitive decline,” the study authors commented in a press release.

The lack of baseline cognitive assessment and clinical examination data before dementia diagnoses posed some limitations to the study. Infection treatment data was also not available.

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Study co-author Pyry N. Sipila, MD, PhD, a public health lecturer at the University of Helsinki, pointed out that the study was observational.

“Thus, we cannot prove whether there really is cause and effect between severe infections and dementia,” he told Fox News Digital. “Ideally, there would be intervention trials in the future that would test whether the prevention of infections will help reduce or delay the onset of dementia.”

Sipila recommends that adults stay up to date on vaccinations.

“Although our study does not prove that vaccinations would help prevent dementia, I think it certainly doesn’t hurt to have that one extra benefit of potentially reducing the risk,” he said.

Dr. Joel Salinas, a Harvard-trained behavioral neurologist and chief medical officer at Isaac Health, said the study’s size suggests it could be applied to other populations.

“We often assume infections are just a marker of someone being generally at risk of illness, but here, severe infections specifically appear to play an independent role,” the New York-based expert, who was not involved in the study, told Fox News Digital. 

“That suggests there may be something biologically meaningful happening, like inflammation or immune responses that affect the brain.”

Salinas added that it’s important to keep this increased risk “in perspective,” as having an infection doesn’t guarantee the development of dementia, but should be considered “one piece of a much larger puzzle.”

Some of the strongest risk factors for dementia, according to Salinas, include fundamentals like heart disease, hypertension, diabetes, depression and head injuries.

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“What this study adds is a reminder that severe infections, especially those requiring hospitalization, may also be part of that risk profile, particularly in older adults,” he told Fox News Digital.

“We’re moving away from thinking about dementia as a single disease with a single cause, and toward understanding it as the result of multiple interacting factors over time.”

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Local Dem leader says he was not ‘an aggressor’ after arrest for hitting man with bullhorn at ‘No Kings’ rally

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The chair of the Hernando County, Florida, Democratic Party who was arrested for allegedly hitting a man in the head with a bullhorn during a “No Kings” protest, said that he did not act as an aggressor and did not escalate the confrontation.

Brian Stewart, 63, was charged with simple battery, a misdemeanor in Florida, and booked into the Hernando County Sheriff’s Detention Center after the incident in Spring Hill on Saturday. He was released later that day, records show.

Stewart said he is “not a violent person” and that the man he was accused of hitting — a disabled veteran identified as Thomas Michta in police reports — was harassing others at the demonstration “in an attempt to elicit a reaction.”

“This was a peaceful event attended by many members of the community,” Stewart told Fox News Digital.

FLORIDA COUNTY’S DEMOCRATIC PARTY CHAIR ACCUSED OF HITTING MAN IN HEAD WITH BULLHORN AT ‘NO KINGS’ PROTEST

“Unfortunately, an individual disrupted that environment and was harassing rally attendees in an attempt to elicit a reaction,” he continued. “At no point did I act as an aggressor. I am not a violent person, and I did not seek out or escalate any conflict. I never expected that I’d be accosted or need to defend myself as I did in that moment.”

The incident happened as demonstrators in Hernando County and across the country protested against the Trump administration’s policies.

Deputies responded at around 10:30 a.m. on Saturday to the intersection of Mariner and Cortez boulevards, where Stewart allegedly struck Michta in the head with a bullhorn.

Michta told deputies he was walking through the protest when he and Stewart became involved in an argument. He accused Stewart of striking him during the dispute and reported being in pain, with a visible lump on his head, according to an arrest affidavit, WTSP reported.

According to the affidavit, video footage captured by a witness and reviewed by deputies showed Stewart using a bullhorn to hit the man in the head and push him in the chest.

After reviewing the video, a witness’ statement and Stewart’s own admissions, deputies said they developed probable cause to believe Stewart intentionally hit the man and caused bodily harm, the affidavit says.

Stewart declined to comment further, saying his lawyers advised him not to make additional public statements.

“I have many more thoughts to share, but my lawyers advise that I should defer doing so until after the case has concluded,” Stewart told Fox News Digital. “Out of respect for the legal process and on the advice of counsel, I will not be commenting further on the specifics of the case at this time.”

Stewart is scheduled to appear in court on April 27.

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The Florida Democratic Party and the Hernando County chapter said in separate statements earlier this week that they “condemn violence.”

“We have been made aware that our Chair, Brian Stewart, was arrested after responding to a provocation from a local agitator who threw a drink on him and yelled obscenities at community members during a protest,” the Hernando County Democratic Party said in a statement to the Tampa Bay Times.

The Florida Republican Party called for Stewart to be removed as chair over the incident at the protest.

“Violence and political intimidation have no place in our state, and Floridians deserve better than mere silence from Democrat leadership. Nikki Fried must immediately remove Brian Stewart from his position of leadership in the Florida Democrat Party!” Florida GOP Chairman Evan Power said in a statement to WTSP.

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7-month-old baby killed by stray bullet in Brooklyn shooting, police say

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A 7-month-old baby girl was killed by a stray bullet Wednesday afternoon when a gunman on a moped opened fire on a Brooklyn street, police said.

According to the New York City Police Department, two individuals on a moped approached the intersection of Moore Street and Humboldt Street in Brooklyn when the individual in the back fired a weapon multiple times, with a stray bullet striking a young girl on the sidewalk.

The NYPD has identified the 7-month-old girl as Kaori Patterson-Moore of Brooklyn. She was pronounced dead at the hospital.

The individuals fled the scene on the moped. The NYPD said one person of interest is in custody, while a manhunt is underway for the second suspect as police ask for the public’s help identifying those involved.

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The shooting was believed to be gang-related, and the child was an unintended victim, according to police.

“There are no words that can mend the heartbreak this family is feeling right now,” New York City Mayor Zohran Mamdani said during a news conference. “A life that had barely begun was taken in an instant.”

The shooting took place around 1:20 p.m. on a street corner where several adults and children were gathered. Police said there were no other injuries connected to the shooting.

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Police Commissioner Jessica Tisch said the moped sped off after the shooting but crashed into an oncoming car two blocks away. Both riders fell off the vehicle, and the impact caused the passenger to lose both his shoes, she added.

One of the men on the moped was injured and taken to the hospital and is in police custody in connection with an unrelated investigation, police said. Investigators believe the man fits the description of the alleged shooter based on his clothing and appearance.

The other man fled and has not been located by police as of Wednesday evening.

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No gun has been recovered from the scene, but two shell casings were found, police said.

“This is a terrible day in our city, a tragedy that truly shocks the conscious,” Tisch said at the news conference. “As a mother, I cannot imagine the pain that this family is feeling or the grief that they now carry with them. It is unspeakable.”

Investigators reviewed neighborhood security cameras and tracked the moped’s movement following the shooting, Tisch said.

Mamdani said Wednesday’s homicide is a reminder that more work needs to be done to reduce gun violence.

Police are asking anyone with information regarding the incident to call the NYPD’s Crime Stoppers Hotline at 1-800-577-TIPS (8477) or, for Spanish, 1-888-57-PISTA (74782). The public can also submit tips online or on X @NYPDTips.

The Associated Press contributed to this report.

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Former Cowboys player Trysten Hill appears to grin after arrest tied to alleged assault of pregnant woman

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Former NFL defensive tackle Trysten Hill was booked into a Texas jail last week on multiple charges relating to an alleged assault of a pregnant woman.

Ellis County Sheriff’s Office jail records list “assault of a pregnant person” and “interfering with an emergency request for assistance.” 

FOX 4 in Dallas obtained the records, which also showed Hill was arrested March 26.

Hill was booked and held on a $3,500 bond connected to two bond-forfeiture warrants from a 2025 criminal investigation, the sheriff’s office said.

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Hill appeared to grin in his booking photo.

The identity of the alleged victim and any relationship to Hill were not disclosed. Fox News Digital contacted the Ellis County Sheriff’s Office, but a request for comment was not immediately returned.

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After his three-year career at Central Florida, the Cowboys selected Hill in the second round of the 2019 NFL Draft. He appeared in 25 regular-season games with the Cowboys, recording 39 combined tackles over four seasons.

Hill joined the Arizona Cardinals midway through the 2022 season, recording five solo tackles and one sack in six games. He signed with the Cleveland Browns in 2023 but was released before the regular season kicked off.

The New England Patriots signed Hill to their practice squad later in 2023.

Follow Fox News Digital’s sports coverage on X, and subscribe to the Fox News Sports Huddle newsletter.

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