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The unknown 70-year-old was in hospital after a stroke, which made it difficult for her to talk and was paralyzed on one side

The urine of the victim of a stroke becomes PURPLE due to a rare chemical reaction in her body

  • The unknown 70-year-old from France was in hospital after a stroke
  • She had a catheter – a tube that was used to empty the bladder and collect urine in a bag
  • However, 10 days after she was first admitted to hospital, the urine turned purple
  • Doctors just outside of Paris diagnosed her with & # 39; purple urinary bag syndrome & # 39;
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The urine of a stroke victim turned purple due to a rare chemical reaction in her body, doctors in France have revealed.

The unknown 70-year-old was in hospital after a stroke, which made it difficult for her to talk and was paralyzed on one side.

To help her urinate, she was equipped with a catheter – a flexible tube that was used to empty the bladder. The urine is collected in a waste bag.

However, 10 days after the patient was first hospitalized for treatment, the urine in her pocket turned purple.

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The unknown 70-year-old was in hospital after a stroke, which made it difficult for her to talk and was paralyzed on one side

The unknown 70-year-old was in hospital after a stroke, which made it difficult for her to talk and was paralyzed on one side

Doctors in the Hôpital de Bicêtre, on the outskirts of Paris, diagnosed her with & # 39; purple urinary bag syndrome & # 39; (PUBS).

Dr. Léo Plaçais and team did not think she had a UTI, but tests showed that there were Klebsiella pneumoniae bacteria in her urine sample.

It is unclear how often PUBS occurs – but doctors say the discoloration of urine is caused by a series of internal chemical reactions.

Some bacteria, including the species this woman had, can break down metabolites of tryptophan – an amino acid found in food.

This produces indole, which becomes indoxulfate. This oxidizes to blue-colored indigo and the reddish indirubine.

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The combination of indigo and indirubine gives a purple tint to the urine collection bag. However, the discoloration is completely benign.

Women are at a higher risk of developing PUBS because they have a shorter urethra, making them more vulnerable to catching UTIs.

The unusual story of PUBS – first described in the 1970s – was published in the prestigious New England Journal of Medicine.

The woman's urine returned to its normal color after four days of intravenous hydration. She was then transferred to a separate facility.

It is not the first time MailOnline has reported on PUBS – last year Indian doctors released photos of the same phenomenon that happened to a 70-year-old man.

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The man was treated at King George's Medical University in Lucknow, about 530 km east of New Delhi.

He had used the catheter in the hospital for six months prior to the planned operation to cut away part of his enlarged prostate.

WHAT IS PURPLE URINARY BAG SYNDROME?

Doctors say the bluish discoloration of urine is caused by a series of chemical reactions in the body.

Bacteria responsible for the UTI breakdown metabolites of tryptophan – an amino acid found in food.

This produces indole, which becomes indoxulfate, which then oxidizes to blue-colored indigo and the reddish indirubine.

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Doctors at King George's Medical University in Lucknow, India, wrote in the British Medical Journal's Case Reports last year: & # 39; The combination of indigo and indirubin adds a purple tint to the urine collection bag. & # 39;

However, the discoloration is completely benign and often the underlying UTI is considered more worrying for doctors.

Women are at a higher risk of developing PUBS because they have a shorter urethra, making them more vulnerable to catching UTIs.

Constipation can also increase the chances because it gives bacteria more time to break down tryptophan metabolites in the body.

It is unclear how often PUBS occurs, but it has been described as a & # 39; unusual phenomenon & # 39 ;.

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. (TagsToTranslate) Dailymail (t) health (t) France