EP1265533A1 - Verfahren und vorrichtung zur diagnostischen bestimmung der rezeptivität des uterusepithels - Google Patents
Verfahren und vorrichtung zur diagnostischen bestimmung der rezeptivität des uterusepithelsInfo
- Publication number
- EP1265533A1 EP1265533A1 EP01921220A EP01921220A EP1265533A1 EP 1265533 A1 EP1265533 A1 EP 1265533A1 EP 01921220 A EP01921220 A EP 01921220A EP 01921220 A EP01921220 A EP 01921220A EP 1265533 A1 EP1265533 A1 EP 1265533A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ion
- diagnostic device
- measuring head
- ion concentration
- uterine
- 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.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0082—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes
- A61B5/0084—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for introduction into the body, e.g. by catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/0012—Ovulation-period determination
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0071—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence by measuring fluorescence emission
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/43—Detecting, measuring or recording for evaluating the reproductive systems
- A61B5/4306—Detecting, measuring or recording for evaluating the reproductive systems for evaluating the female reproductive systems, e.g. gynaecological evaluations
- A61B5/4318—Evaluation of the lower reproductive system
- A61B5/4325—Evaluation of the lower reproductive system of the uterine cavities, e.g. uterus, fallopian tubes, ovaries
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D17/00—Devices for indicating trouble during labour of animals ; Methods or instruments for detecting pregnancy-related states of animals
- A61D17/002—Devices for indicating trouble during labour of animals ; Methods or instruments for detecting pregnancy-related states of animals for detecting period of heat of animals, i.e. for detecting oestrus
Definitions
- the present invention relates to a method for the diagnostic determination of the receptivity of the uterine epithelium, in particular the time of the implantation window within the menstrual cycle, and a device for carrying out the method.
- embryo implantation means that trophoblast cells can only be attached to uterine epithelial cells in the introductory phase if all components of the endometrium - including the uterine epithelium - have previously reached a certain physiological state.
- the receptivity determines from the utennen side the implantation window within the menstrual cycle and is determined by the estrogen and
- Progesterone secretion of the ovary regulated The human receptive phase begins about 4 to 5 days after fertilization and persists for about 4 days to 8 days.
- IVF / ET therapy in vitro fertilization and embryo transfer therapy
- the implantation of the embryo is of central importance for the occurrence of pregnancy and is initiated by a direct interaction of the trophoblast with the lumenal epithelium of the uterus. Due to the relative inaccessibility of the process, there is little reliable information available on the basic cell biological processes of human embryo implantation. Findings on these basic cell biological processes were not only desirable for understanding the cell-cell adhesion between the blastocyst and the endometrial mucosa, which is so critical for embryo implantation, but also for a more efficient hormone treatment of fertility disorders of endometrial causes of great interest.
- the inventors made considerations and developed conceptual concepts which make it possible to specifically analyze the suspected cell biological foundations.
- the inventors found that the formation of a structurally and functionally specialized cell-cell contact between epithelial cells of the trophoblast of the implantable blastocyst and epithelial cells of the surface of the receptive endometrium is of particular importance for embryo implantation.
- the inventors found that a change in the intracellular calcium ion concentration in the contact area and in the vicinity thereof can be determined in the case of cell contact between the trophoblast and the uterine epithelium.
- the cells of the uterine epithelium were stimulated, there was a temporary increase in the intracellular free calcium in the uterine epithelium.
- This increase in calcium has characteristics of kinetics and spatial spread that can be used to assess the state of the receptivity.
- the inventors have developed a method for determining an increased receptivity of the uterine epithelium, which is based on the detection of a change in the intracellular ion concentration and / or ion distribution, in particular the calcium ions and, according to a partial aspect of the present invention, based on the associated change in transepithelial electrical resistance.
- the present invention is therefore directed to a
- Method for the diagnostic determination of the receptivity of the uterine epithelium comprising the following steps: a) determining the initial value of the ion concentration of the uterine epithelium or its transepithelial resistance and storing the results obtained; b) stimulating the uterine epithelium by physical and / or chemical means; and c) determining the value of the ion concentration of the uterine epithelium or its transepithelial resistance changed as a result of the stimulation and
- the stimulation of the epithelium by means of an electrical voltage is the mechanical stimulation by exerting pressure or to understand by applying a chemical substance.
- the method preferably determines changes in the ion Concentration by fluorescence-optical measurement, by measurement using an ion-sensitive bio- and / or ion sensor, or by changes in the transepithelial electrical resistance, the determination of these parameters particularly preferably taking into account the kinetic course of the change in the measured parameter in step c).
- the determination of the ion concentration preferably also includes the kinetic profile of the measured parameters within and / or outside the range of the directly stimulated cells.
- a change in the intracellular calcium ion concentration, the ion currents across the cell membrane or the transepithelial resistance result as a result of stimulation of the uterine mucosa.
- a change in the transepithelial electrical resistance serves as an indicator for an expired change in the intracellular ion concentration, in particular the calcium ion concentration, without this e.g. knowledge of the absolute ion or calcium ion concentrations before and after the stimulation would be necessary.
- the transepithelial electrical resistance is measured, the determination of the basic value of the transepithelial resistance, stimulation and determination of the changed value taking place in succession.
- the increase in the intracellular ion concentration caused by the stimulation of the uterine epithelium causes a change in the membrane conductivity via coupled subsequent reactions and thus results in a change in the transepithelial resistance. Since the ion shifts caused by the stimulation also correlate with the changes in the measured electrical resistance, the determination of the electrical resistance on the uterine mucosa can be used as a measure of the responsiveness.
- Embodiment of the method of the present invention which is based on a method for diagnostic determination the receptivity of the uterine epithelium is directed, which comprises the following steps: a) determining the initial value of the calcium ion concentration of the uterine epithelium and storing the value obtained; b) stimulating the uterine epithelium by physical and / or chemical means; and c) redetermining the calcium ion concentration of the uterine epithelium after stimulation and evaluation of the result obtained taking into account the value obtained in step a).
- this comprises the steps a) to f): a) applying a calcium indicator, which can be a fluorescent / luminescent indicator, on the uterine epithelium; b) irradiating the uterine epithelium with light of a suitable wavelength if fluorescent indicators are used and measuring the radiation emitted by the calcium indicator (fluorescence / luminescence radiation); c) evaluating the measured values obtained in an evaluation unit; d) stimulating the uterine epithelium, possibly by physical and / or chemical means; e) re-irradiating the uterine epithelium with light of a suitable wavelength if fluorescent indicators are used and measuring the radiation emitted by the calcium indicator (fluorescence / luminescence radiation); and f) evaluating the measured values obtained in an evaluation unit.
- a calcium indicator which can be a fluorescent / luminescent indicator
- the inventors propose to carry out the method according to the invention in analogy to hysteroscopy and to insert a probe or an endoscope in a corresponding manner into the uterine cavity.
- the uterine cavity can be unfolded with a physiological saline solution that contains calcium ions in order to preliminarily rinse or inspect the surface.
- the inventors proposed a diagnostic device which, as essential components, comprises a specially designed probe and an evaluation unit connected to it.
- the diagnostic device for performing the inventive method of a variant comprises a probe, which in the simplest version can consist of a probe rod or tube or a flexible tube, optionally equipped with an optical system for observing the uterine mucosa, and one with Evaluation unit functionally connected to the probe for evaluating the measured values obtained, the probe further comprising: a) means for stimulating the uterine epithelium by physical and / or chemical means b) a measuring head preferably located at the uterine end of the probe with means for determining the epithelial Ion concentration or the transepithelial resistance.
- the diagnostic device for carrying out the method has an optical system which is integrated into the probe rod or tube for observation of the uterine mucosa for insertion into the uterus.
- the measuring head has at least one electrode for measuring the transepithelial electrical resistance.
- means are preferably provided for sealing the at least one electrode from the environment.
- Diagnostic device on another electrode which is attached as an indifferent electrode outside or inside the uterus.
- Preferred diagnostic devices have a measuring head for determining the ion concentration, which comprises means for fluorescence-optical measurement and / or an ion-sensitive bio and / or ion sensor.
- a calcium indicator and, if appropriate, further test substances can be applied to the uterine epithelium via the preferably multi-channel probe for insertion into the uterus, this being made possible, for example, via a channel in the probe tube.
- a reservoir for the solution containing the calcium indicator can also be connected to or provided on the probe, from which this solution can be conveyed via a delivery line by means of a conveying device, e.g. a pump for which an application opening near the measuring head is required.
- a metering device is preferably provided, which is designed in the manner of a syringe.
- a preferred diagnostic device for determining the epithelial calcium ion concentration has a measuring head which is designed to emit light of a suitable wavelength and to measure emitted light
- the probe is provided with a measuring head, through which light of suitable wavelength for fluorescence excitation is emitted and emitted light is recorded via a photo element integrated in the measuring head.
- means can be provided in the probe for introducing additional devices which also allow and control manipulations with the measuring head in the uterine lumen.
- Such devices can include, for example, components that enable the measuring head itself to be mechanically advanced or that are a micromanipulator-controlled mechanical stimulator.
- the probe rod or tube can also contain an optical channel, such as a light-conducting fiber, and the measuring head can contain appropriate optics for inspecting the mucosal surface.
- an optical channel such as a light-conducting fiber
- a light source that emits light of a suitable wavelength to excite the fluorescence indicator and that is optically and conductively connected to the probe via a light guide, so that the emitted radiation is directed onto the uterine epithelium can be provided and em photo element for detecting the fluorescence at the end of the probe tube present when examined outside the body or connected to it.
- the measured values can be evaluated in the connected evaluation unit.
- the evaluation unit for example with a computer system a software loaded on it, (a) the recording and storage of the detected signals is made possible, and (b) the evaluation of these signals can be carried out.
- the ⁇ er measured values are evaluated via the
- Signal evaluation based on the parameters "large” and “spread” of the calcium signal or the change in the transepithelial resistance.
- the size of the signal results from the difference between the base value before stimulation and the value after stimulation.
- the calcium indicator can preferably be applied in the form of an ester compound which penetrates the cell membrane spontaneously, is cleaved intracellularly by esterases and then can no longer leave the cell in the cleaved form. If other indicators are used, the cells can also be transported via electroporation, coupling to liposomes or to ligands for receptors at the cell surface with subsequent endocytosis or by spontaneous uptake by the cells.
- the intracellular indicator When the fluorescence principle is used, the intracellular indicator is excited with light of the appropriate wavelength to record the basic value, which is not necessary for the alternative use of luminescence measurement.
- the measurement by means of integral measurement of the emitted radiation, eg Fluorescent light, in a flat dimensionally defined window.
- the measurement of the emitted radiation is repeated, the difference between the signals from the measurement before and after stimulation and the time-dependent kinetics is registered and evaluated by the evaluation unit.
- the probe which can be used in the method according to the invention should comprise two independent measurement windows or electrodes of this type, which are located at a defined distance from one another, so that the propagation of the signal m of the surface can also be detected.
- the probe tube When using the method in vivo, the probe tube is inserted into the uterine cavity and the measuring head is placed on the surface of the mucous membrane. If necessary, a rinse is carried out with a calcium-containing physiological solution for rinsing. Then, using the fluorescence-optical method, the calcium indicator solution is introduced, if necessary, by the Coil channel, the absorption of the calcium indicator solution by the epithelial cells taking place analogously to that described above.
- the measurement processes for determining the initial value and for determining after stimulation take place as described above.
- the uterine epithelium can be stimulated between the two measurement processes by touching the entire tube head or by means of a device which is guided through a separate channel in the probe tube.
- a measuring head which has at least one ion-sensitive, preferably a calcium-ion-sensitive bio- and / or or ion sensor.
- All proposed diagnostic devices also preferably have means for introducing additional devices which allow and control manipulations in the uterine lumen.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Biophysics (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Animal Husbandry (AREA)
- Pregnancy & Childbirth (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Gynecology & Obstetrics (AREA)
- Reproductive Health (AREA)
- Endoscopes (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10014350 | 2000-03-24 | ||
| DE10014350A DE10014350A1 (de) | 2000-03-24 | 2000-03-24 | Verfahren und Vorrichtung zur diagnostischen Bestimmung der Rezeptivität des Uterusepithels |
| PCT/DE2001/001061 WO2001072229A1 (de) | 2000-03-24 | 2001-03-20 | Verfahren und vorrichtung zur diagnostischen bestimmung der rezeptivität des uterusepithels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1265533A1 true EP1265533A1 (de) | 2002-12-18 |
Family
ID=7635992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01921220A Withdrawn EP1265533A1 (de) | 2000-03-24 | 2001-03-20 | Verfahren und vorrichtung zur diagnostischen bestimmung der rezeptivität des uterusepithels |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20040015097A1 (de) |
| EP (1) | EP1265533A1 (de) |
| AU (1) | AU4827201A (de) |
| DE (1) | DE10014350A1 (de) |
| WO (1) | WO2001072229A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113576534A (zh) * | 2021-08-17 | 2021-11-02 | 陈智毅 | 基于多模态成像的子宫内膜成像装置、评分系统及方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2430754A1 (fr) * | 1978-07-13 | 1980-02-08 | Groux Jean | Endoscope en ultraviolet |
| CH644270A5 (en) * | 1980-05-13 | 1984-07-31 | Licencia Talalmanyokat | Use of corrective compositions in the fertilisation of mammals to improve their reproduction |
| ES294191Y (es) * | 1986-05-16 | 1987-06-16 | Ortueta Corona L Fernand | Aparato optico, consistente en un microscopio de 100x llevando incorporado una linterna de 1,5 v |
| ATE136761T1 (de) * | 1988-07-29 | 1996-05-15 | Semex Japan Kk | Vorrichtung zum diagnostizieren von eierstockerkrankungen sowie einer schwangerschaft bei säugetieren |
| US5209238A (en) * | 1989-08-17 | 1993-05-11 | Sundhar Shaam P | Electronic ovulation monitor |
| IL97115A (en) * | 1991-01-31 | 1995-11-27 | Yissum Res Dev Co | Fertility probe |
| US5678550A (en) * | 1995-08-11 | 1997-10-21 | The United States Of America As Represented By The Secretary Of The Department Of Health And Human Services | Apparatus and method for in situ detection of areas of cardiac electrical activity |
| US5916173A (en) * | 1997-02-26 | 1999-06-29 | Kirsner; Vaclav | Methods and apparatus for monitoring fertility status in the mammalian vagina |
| US6159159A (en) * | 1998-03-27 | 2000-12-12 | Seroptix, Inc. | Apparatus and method for monitoring ovulation |
| US6080118A (en) * | 1999-02-25 | 2000-06-27 | Blythe; Cleveland | Vaginal probe and method of using same |
-
2000
- 2000-03-24 DE DE10014350A patent/DE10014350A1/de not_active Withdrawn
-
2001
- 2001-03-20 WO PCT/DE2001/001061 patent/WO2001072229A1/de not_active Ceased
- 2001-03-20 EP EP01921220A patent/EP1265533A1/de not_active Withdrawn
- 2001-03-20 US US10/239,949 patent/US20040015097A1/en not_active Abandoned
- 2001-03-20 AU AU48272/01A patent/AU4827201A/en not_active Abandoned
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO0172229A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20040015097A1 (en) | 2004-01-22 |
| WO2001072229A1 (de) | 2001-10-04 |
| DE10014350A1 (de) | 2001-09-27 |
| AU4827201A (en) | 2001-10-08 |
| WO2001072229A8 (de) | 2002-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Cole et al. | What the hippocampus tells the HPA axis: Hippocampal output attenuates acute stress responses via disynaptic inhibition of CRF+ PVN neurons | |
| EP2336751B1 (de) | Verfahren zur Bestimmung des Geschlechts an Vogeleiern | |
| DE2502621C3 (de) | Messung elastischer und dielektrischer Eigenschaften der Membran lebender Zellen | |
| DE69704263T2 (de) | Umhüllung für Aufnehmer zur Wiedererkennung von Gewebetypen | |
| DE69432403T2 (de) | Ambulante aufzeichnung über vorkommen und aktivität von stoffen im verdauungskanal | |
| EP1910808B1 (de) | Verfahren sowie messsystem zur ermittlung der sauerstoffpartialdruckverteilung in zumindest einem gewebeflächenabschnitt, insbesondere hautgewebeflächenabschnitt | |
| DE2548638A1 (de) | Verfahren zur vorhersage und bestimmung der ovulation und mittel zur durchfuehrung des verfahrens | |
| EP0862896A2 (de) | Vorrichtung zum Erkennen von Karies, Plaque oder bakteriellem Befall an Zähnen | |
| EP3041403B1 (de) | Verfahren zur erhöhung der optischen transparenz von bereichen einer gewebeprobe | |
| Aravanis et al. | Imaging single synaptic vesicles undergoing repeated fusion events: kissing, running, and kissing again | |
| Colino et al. | Characterization of the integration time for the stabilization of long-term potentiation in area CA1 of the hippocampus | |
| DE60031128T2 (de) | Sonde für die mikrodialyse | |
| DE102010028105A1 (de) | Verfahren, Vorrichtung und Gerätesystem für die Therapie von Prostatakrebs | |
| DE10142393C1 (de) | Vorrichtung und Verfahren zur Erfassung bioelektrischer Signale aus elektrophysiologisch aktiven Bereichen in Sphäroiden | |
| WO2011160892A1 (de) | Verfahren und vorrichtung zur erkennung von tumorbehaftetem gewebe im gastrointestinaltrakt mit hilfe einer endokapsel | |
| EP1265533A1 (de) | Verfahren und vorrichtung zur diagnostischen bestimmung der rezeptivität des uterusepithels | |
| Jamieson et al. | Parameters of electrical stimulation of the medial preoptic area for release of gonadotrophins in male rats | |
| EP2251675A1 (de) | Verfahren zur Erkennung von Tumorbehaftetem Zellgewebe | |
| DE102020200400B4 (de) | Kontrolliertes Bestrahlen eines Objekts | |
| Levy et al. | Strategies for mapping synaptic inputs on dendrites in vivo by combining two-photon microscopy, sharp intracellular recording, and pharmacology | |
| Pérez et al. | Effects of feeding on extracellular levels of glutamate in the medial and lateral portion of the globus pallidus of freely moving rats | |
| DE3009901A1 (de) | Vorrichtung zum nachweis von aenderungen der mineralionenkonzentration in organischen geweben und deren verwendung | |
| DE1598621C3 (de) | Verfahren und Vorrichtung zur schnellen und kontinuierlichen Untersuchung einer Vielzahl von biologischen Zellen | |
| Bodner et al. | Lipid pigment (lipofuscin) accumulation in rat tongue muscle with aging | |
| EP1590672B1 (de) | Verfahren zum nachweis von fertilitätssteigernden oder kontrazeptiven wirkstoffen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20021014 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: DENKER, HANS-WERNER,UNIVERSITAETSKLINIKUM ESSEN Inventor name: TINEL, HANNA, DR Inventor name: THIE, MICHAEL,UNIVERSITAETSKLINIKUM ESSEN |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: UNIVERSTITAET DUISBURG-ESSEN |
|
| 17Q | First examination report despatched |
Effective date: 20061212 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20081001 |