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| ID | Type | Description | Link |
|---|---|---|---|
| 2006-006564-36 | EudraCT Number |
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Paracetamol is one of the most widely used analgesics in the world especially for chronic pain in the elderly. The metabolism of paracetamol occurs in the liver and involves the use of glutamyl-cysteinyl-glycine (Glutathione (GSH)). Medications such as paracetamol, may reduce the reserves of GSH because it is used for detoxification and elimination. It is well known that the concentration of GSH decrease after administration of paracetamol in humans and animals.
Aging is associated with decreased concentration of GSH in cells and tissues. In the elderly, a decrease of GSH concentration in plasma or red blood cells is associated with decreased physical and mental health.
We wish here to determine, in subjects aged over 70 years, the blood concentration of glutathione (GSH) and urinary loss of cysteine in the detoxification of paracetamol, when taking paracetamol treatment repeated.
Paracetamol is one of the most widely used analgesics in the world especially for chronic pain in the elderly. The metabolism of paracetamol occurs in the liver and involves the use of glutamyl-cysteinyl-glycine (glutathione (GSH)). Medications such as paracetamol, may reduce the reserves of GSH because it is used for detoxification and elimination. It is well known that the concentration of GSH decrease after administration of paracetamol in humans and animals.
Aging is associated with decreased concentration of GSH in cells and tissues. In the elderly, a decrease of GSH concentration in plasma or red blood cells is associated with decreased physical and mental health.
We wish here to determine, in subjects aged over 70 years, the blood concentration of glutathione (GSH) and urinary loss of cysteine in the detoxification of paracetamol, when taking paracetamol treatment repeated.
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Paracetamol | Drug | determine, in subjects aged over 70 years, the blood concentration of glutathione (GSH) and urinary loss of cysteine in the detoxification of paracetamol, when taking paracetamol treatment repeated. |
| Measure | Description | Time Frame |
|---|---|---|
| Identify, by determining the concentration of blood GSH how the use of paracetamol at the doses usually prescribed affects the status of GSH |
| Measure | Description | Time Frame |
|---|---|---|
| Quantifying the loss of cysteine for detoxification of acetaminophen by measuring the amount of paracetamol cysteine conjugate and mercapturic acid excreted in urine |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Gisèle PICKERING | University Hospital, Clermont-Ferrand | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| CHU Clermont-Ferrand | Clermont-Ferrand | 63003 | France |
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| ID | Term |
|---|---|
| D059350 | Chronic Pain |
| ID | Term |
|---|---|
| D010146 | Pain |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
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| ID | Term |
|---|---|
| D000082 | Acetaminophen |
| ID | Term |
|---|---|
| D000083 | Acetanilides |
| D000813 | Anilides |
| D000577 | Amides |
| D009930 | Organic Chemicals |
| D000814 |
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| Aniline Compounds |
| D000588 | Amines |