EP4584586A1 - Metabolisierbare kontroll-marker für die endogene markierung von urin - Google Patents
Metabolisierbare kontroll-marker für die endogene markierung von urinInfo
- Publication number
- EP4584586A1 EP4584586A1 EP23765465.2A EP23765465A EP4584586A1 EP 4584586 A1 EP4584586 A1 EP 4584586A1 EP 23765465 A EP23765465 A EP 23765465A EP 4584586 A1 EP4584586 A1 EP 4584586A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- urine
- polyethylene glycols
- curcumin
- marker
- drinking solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/487—Physical analysis of biological material of liquid biological material
- G01N33/493—Physical analysis of biological material of liquid biological material urine
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/94—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving narcotics or drugs or pharmaceuticals, neurotransmitters or associated receptors
Definitions
- a urine sample is most commonly used to detect the ingestion of illegal substances. These tests are used in many areas, e.g. addiction therapy, substitution therapy, driving ability tests, sports, employee screening, etc.
- urine is susceptible to tampering. By adding liquid or chemicals, such as dishwashing liquid, an attempt is made to disguise the illegal ingestion of unauthorized substances. It is also often attempted to exchange the "contaminated" sample for an uncontaminated sample. To rule out such manipulations, the urine sample is still taken under direct visual inspection with a view of the subject's genitals.
- An obvious deception is that the subject gives the drinking solution with the marker substances that was given to him to another person who takes the marker substances, so that the subject sees the urine produced by this third person as his/her own. can pass their own urine. This deception can be prevented by taking the solution under supervision.
- sucrose When using sucrose, it is also necessary that the person sending the urine sample strictly follows the instructions. The amount of sucrose added must be exactly right and no fruit juices or lemonades may be used for administration, otherwise it will make it more difficult to evaluate the findings. Furthermore, the sucrose can be broken down by yeast, for example. If yeasts are added to manipulated urine that contains sucrose, the sucrose is broken down. Yeast or bacteria can occur in urine even without manipulation, through bladder disease or through non-sterile urine output, so direct detection of yeast or bacteria in urine is not helpful. (The "natural yeasts or bacteria would hardly be sufficient to break down the sucrose under normal conditions.) The indirect detection of yeasts by measuring the breakdown of an added amount of sucrose before analysis in the laboratory has not proven to be reliable.
- Curcumin is non-toxic and is the main component of the seasoning, medicinal and coloring agent turmeric, which is used together with other spices in curry powder (https://de.wikipedia.org/wiki/Curcumin).
- the sample is placed in a screw-top glass tube with 1.6 ml of saturated NaCl solution and 25 ⁇ l of 3 M NH3 and 2 ml of ethyl acetate/dichloromethane (1:1) are added.
- the sample is mixed for 10 minutes on an overhead shaker. Then it is centrifuged and the supernatant is placed in a glass tube.
- the sample is then evaporated in a stream of nitrogen or with air until it dries.
- the residue is first mixed with 25 pl Methanol and then dissolved with 75 pl H2O.
- the dissolved samples are filled into vials with microinserts and sealed. 5 ⁇ l of sample are injected into the LCMS/MS.
- curcumin Since no commercial controls with curcumin are available, a separate control is produced which, in addition to the drugs, narcotic substances and PEGs, also contains curcumin in a concentration of 20 - 50 ng/ml. The detection of curcumin is qualitative, therefore no calibration is carried out. However, every laboratory is free to quantify curcumin.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Urology & Nephrology (AREA)
- Analytical Chemistry (AREA)
- Hematology (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Food Science & Technology (AREA)
- Biophysics (AREA)
- Medicinal Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Pharmacology & Pharmacy (AREA)
- Biotechnology (AREA)
- Cell Biology (AREA)
- Microbiology (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022122731.6A DE102022122731A1 (de) | 2022-09-07 | 2022-09-07 | Metabolisierbare Kontroll-Marker für die endogene Markierung von Urin |
| PCT/EP2023/074099 WO2024052243A1 (de) | 2022-09-07 | 2023-09-02 | Metabolisierbare kontroll-marker für die endogene markierung von urin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4584586A1 true EP4584586A1 (de) | 2025-07-16 |
Family
ID=87972010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23765465.2A Pending EP4584586A1 (de) | 2022-09-07 | 2023-09-02 | Metabolisierbare kontroll-marker für die endogene markierung von urin |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4584586A1 (de) |
| DE (1) | DE102022122731A1 (de) |
| WO (1) | WO2024052243A1 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10112470B4 (de) | 2001-03-15 | 2008-02-28 | Keller, Ruprecht, Priv.-Doz. Dr.Dr. | Verfahren zur Proben-Identifizierung bei einem Säugetier sowie Kit zur Durchführung dieses Verfahrens |
| DE10253664B4 (de) | 2002-11-18 | 2005-02-03 | Gauchel, Gisela, Dr. | Diagnoseverfahren |
| US20170143646A1 (en) * | 2014-03-28 | 2017-05-25 | Omniactive Health Technologies Limited | Effect of lipophilic nutrients on diabetic eye diseases |
| EP2957909B1 (de) * | 2014-06-18 | 2019-01-30 | Ruprecht Keller | Verfahren zur identifizierung einer biologischen probe eines säugers und zusammensetzung zur verwendung in diesem verfahren |
| DE202018103853U1 (de) * | 2018-07-05 | 2018-08-07 | Viktoria Apotheke Dr. Ludwig Trennheuser Inhaber Dr. Fritz Trennheuser | Zusammensetzung zur Applikation von Curcumin |
-
2022
- 2022-09-07 DE DE102022122731.6A patent/DE102022122731A1/de not_active Withdrawn
-
2023
- 2023-09-02 WO PCT/EP2023/074099 patent/WO2024052243A1/de not_active Ceased
- 2023-09-02 EP EP23765465.2A patent/EP4584586A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022122731A1 (de) | 2024-03-07 |
| WO2024052243A1 (de) | 2024-03-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17P | Request for examination filed |
Effective date: 20250402 |
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| AK | Designated contracting states |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17Q | First examination report despatched |
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