DE10127500A1 - Early recognition of bovine spongiform encephalopathy for living cattle involves stimulus of the brains with an external stimulus and measurement and evaluation of the resulting brain activity - Google Patents
Early recognition of bovine spongiform encephalopathy for living cattle involves stimulus of the brains with an external stimulus and measurement and evaluation of the resulting brain activityInfo
- Publication number
- DE10127500A1 DE10127500A1 DE10127500A DE10127500A DE10127500A1 DE 10127500 A1 DE10127500 A1 DE 10127500A1 DE 10127500 A DE10127500 A DE 10127500A DE 10127500 A DE10127500 A DE 10127500A DE 10127500 A1 DE10127500 A1 DE 10127500A1
- Authority
- DE
- Germany
- Prior art keywords
- stimulus
- brain
- animal
- external stimulus
- evaluation
- 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- Withdrawn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
- 210000004556 brain Anatomy 0.000 title claims abstract description 21
- 241000283690 Bos taurus Species 0.000 title description 4
- 238000011156 evaluation Methods 0.000 title description 2
- 208000018756 Variant Creutzfeldt-Jakob disease Diseases 0.000 title 1
- 208000005881 bovine spongiform encephalopathy Diseases 0.000 title 1
- 230000007177 brain activity Effects 0.000 title 1
- 238000005259 measurement Methods 0.000 title 1
- 241001465754 Metazoa Species 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000000763 evoking effect Effects 0.000 claims abstract description 7
- 230000003287 optical effect Effects 0.000 claims abstract 2
- 238000001514 detection method Methods 0.000 claims description 4
- 238000009795 derivation Methods 0.000 claims description 3
- 210000000056 organ Anatomy 0.000 claims description 2
- 230000008447 perception Effects 0.000 claims description 2
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 238000003745 diagnosis Methods 0.000 description 3
- 208000024891 symptom Diseases 0.000 description 3
- 102000029797 Prion Human genes 0.000 description 2
- 108091000054 Prion Proteins 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000537 electroencephalography Methods 0.000 description 2
- 206010061217 Infestation Diseases 0.000 description 1
- 206010039740 Screaming Diseases 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000003307 slaughter Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/369—Electroencephalography [EEG]
- A61B5/377—Electroencephalography [EEG] using evoked responses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/40—Detecting, measuring or recording for evaluating the nervous system
- A61B5/4076—Diagnosing or monitoring particular conditions of the nervous system
- A61B5/4088—Diagnosing of monitoring cognitive diseases, e.g. Alzheimer, prion diseases or dementia
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Psychology (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Psychiatry (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
Description
Im Zusammenhang mit der Rinderseuche, die nun schon seit einer Anzahl von Jahren bekannt ist, liegt ein Kernproblem darin, daß es bislang nicht möglich ist, die Krankheit am lebenden Tier nachzuweisen oder auch nur einen konkreten Ver dacht einigermaßen zuverlässig zu diagnostizieren. Bisher be schränkt sich die Untersuchung auf das Vorhandensein der Krankheit darauf, beim getöteten Tier eine Gehirnprobe auf das Vorhandensein von Prionen zu untersuchen.In connection with the cattle epidemic, which has been around since Known for a number of years is a key problem in the fact that it is not yet possible to treat the disease on to prove living animal or even a concrete ver thought to diagnose reasonably reliably. So far be the investigation is limited to the presence of the Disease on, a brain test on the killed animal to investigate the presence of prions.
Es besteht jedoch ein dringendes Bedürfnis danach, eine mög lichst frühe Erkennung der Krankheit schon am lebenden Tier zu ermöglichen, und zwar selbst dann, wenn ein solches Ver fahren noch keinen vollständigen Nachweis des Vorhandenseins von Prionen liefert, aber einen konkreten Verdacht diagnosti zieren kann.However, there is an urgent need, one possible Early detection of the disease on the living animal to enable, even if such a Ver do not drive a complete proof of the existence of prions, but a concrete suspicion of diagnosis can decorate.
Aufgabe der Erfindung ist es daher, ein Verfahren zur Früher kennung von BSE am lebenden Rind zu schaffen, mit dem eine BSE-Diagnose schon lange vor dem Auftreten äußerlicher Symp tome am lebenden Tier möglich ist.The object of the invention is therefore to provide a method for the past to create recognition of BSE on live cattle with which one BSE diagnosis long before the appearance of external symptoms tome on the living animal is possible.
Diese Aufgabe wird gemäß der Erfindung durch das im Anspruch 1 angegebene Verfahren gelöst.This object is achieved according to the invention by the claim 1 specified method solved.
Vorteilhafte Ausführungsmöglichkeiten dieses Verfahrens sind Gegenstand der Unteransprüche.Advantageous implementation options of this method are Subject of the subclaims.
Erfindungsgemäß umfaßt das Früherkennungsverfahren die Ablei tung von durch äußere Reize evozierten Gehirnsignalen in der nachstehend beschriebenen Weise, wobei die Evozierung der Ge hirns ignale akustisch, visuell, taktil oder elektrisch erfol gen kann.According to the invention, the early detection method includes the derivative development of brain signals evoked by external stimuli in the manner described below, the evocation of Ge brain ignale acoustically, visually, tactilely or electrically can.
Anhand der Ableitung der evozierten Gehirnsignale können Fehlfunktionen im Gehirn, die durch Krankheitsbefall bedingte Fehlstellen im Gehirn verursacht werden, schon lange vor dem Auftreten wahrnehmbarer körperlicher Symptome diagnostiziert werden.Based on the derivation of the evoked brain signals Malfunction in the brain caused by disease Defects in the brain are caused long before Diagnosed appearance of noticeable physical symptoms become.
Die Ableitung der Gehirnpotentiale erfolgt am Kopf des Rindes unter Verwendung von mindestens drei Elektroden, wobei eine dieser drei Elektroden, die als Bezugselektrode dient, an einer beliebigen Stelle angeordnet werden kann, die nicht einmal am Kopf zu liegen braucht, sondern auch an einem ande ren Bereich des Körpers gewählt werden kann. Von den beiden anderen Elektroden sollte die eine nahe des Organs angeordnet sein, mittels welchem der betreffende äußere Reiz wahrgenom men wird. Bei akustisch evozierten Gehirnpotentialen kann das also ein Ort im Bereich des Ohres sein. Die dritte Elektrode ist an dem Bereich des Kopfes anzuordnen, der dem Bereich des Gehirns entspricht, der für die Wahrnehmung des betreffenden Reizes zuständig ist. Diese Gehirnregionen, beispielsweise für das Hören, das Sehen usw. sind bekannt.The brain potential is derived at the head of the cattle using at least three electrodes, one of which of these three electrodes, which serves as a reference electrode can be placed anywhere that is not needs to lie on the head once, but also on another ren area of the body can be selected. Of the two other electrodes, one should be placed near the organ by means of which the external stimulus in question is perceived men will. With acoustically evoked brain potentials, this can so be a place in the area of the ear. The third electrode shall be placed on the area of the head which corresponds to the area of the Brain corresponds to that for the perception of the person concerned Is responsible. These brain regions, for example are known for hearing, seeing, etc.
Für die Ableitung ist es wichtig, daß die Elektroden einen sehr guten elektrischen Kontakt mit der Haut haben, da die abzuleitenden Potentiale bzw. Ströme außerordentlich klein sind, denn es handelt sich hier ja um ein elektroenzephalo graphisches Verfahren. Dieser gute elektrische Kontakt kann beispielsweise dadurch hergestellt werden, daß die betref fende Ableitstelle mit reichlich Elektrodengel versehen wird, so daß eine auch außen am Fell anliegende Elektrode funktio nieren kann, oder die betreffende Hautstelle kann durch Rasieren von Haaren befreit und direkt unter Verwendung von Elektrodengel mit der Elektrode kontaktiert werden, oder es werden Hakennadelelektroden verwendet, die durch das Fell hindurch in die Haut eingestochen werden, was das Tier nicht beeinträchtigt, aber einen Kontakt nicht nur mit der Haut außenoberfläche, sondern auch mit darunter befindlicher Gewebeflüssigkeit herstellt.For the derivation it is important that the electrodes have a have very good electrical contact with the skin because the Potentials or currents to be derived are extremely small are, because this is an electroencephalo graphic process. This good electrical contact can be produced, for example, in that the the discharge point is provided with plenty of electrode gel, so that an electrode that is also on the outside of the fur works can kidney, or the affected area of skin can by Shave hair free and directly using Electrode gel can be contacted with the electrode, or it hook needle electrodes are used that pass through the fur into the skin, which the animal does not impaired, but contact not only with the skin outer surface, but also with the underlying one Manufactures tissue fluid.
Es versteht sich, daß die Ableitelektroden möglichst gut gegen äußere Störfelder abgeschirmt und über eine möglichst kurze Leitung mit einem EEG-Verstärker verbunden werden müssen, um die abgeleiteten evozierten Gehirnpotentiale zu verstärken und entsprechende Signalkurven durch Linienschrei ber oder andere Mittel darstellen und der Auswertung zugäng lich machen zu können.It is understood that the lead electrodes are as good as possible shielded from external interference fields and if possible via a short line can be connected to an EEG amplifier need to derive the evoked brain potentials amplify and corresponding signal curves by screaming lines Represent via or other means and accessible for evaluation to be able to do.
Die Hirnstromkurven, die aufgrund äußerer Reize erhalten werden, beispielsweise durch standardisierte akustische Rei ze, z. B. in Gestalt von Ton- oder Geräuschimpulsen, durch Lichtblitze, elektrische Impulse oder dergleichen, können mit Standardkurven verglichen werden, wie man sie bei nachweis lich gesunden Tieren erhält, so daß sich Abweichungen erken nen lassen, die durch krankheitsbedingte Fehlstellen im Gehirn hervorgerufen werden. Aus der Elektroenzepholagraphie als Diagnoseverfahren in der Humanmedizin ist bekannt, daß sich Veränderungen im Gehirn elelektroenzephalographisch feststellen lassen, lange bevor diese zur körperlichen Symptomen oder Ausfällen führen. Das dargestellte Verfahren kann daher auch eine Früherkennung von mutmaßlichem BSE- Befall ermöglichen.The brain waveforms that get due to external stimuli be, for example, by standardized acoustic Rei ze, z. B. in the form of sound or noise pulses Flashes of light, electrical impulses or the like can be used Standard curves are compared as you can find them at Lich healthy animals, so that deviations can be recognized let those who are due to illness-related defects in the Brain. From electroencepholagraphy as a diagnostic method in human medicine, it is known that changes in the brain by electroencephalography long before they become physical Lead to symptoms or failures. The procedure shown Therefore, early detection of suspected BSE Allow infestation.
Das Verfahren ist gewerblich anwendbar, da es den Ver braucherschutz in Bezug auf die Verwertbarkeit des Fleisches des Schlachttiers und nicht der Diagnose als Bestandteil eines medizinisches Heilverfahrens dient.The method is commercially applicable because it ver user protection with regard to the usability of the meat of the slaughter animal and not the diagnosis as a component a medical treatment.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10127500A DE10127500A1 (en) | 2001-06-06 | 2001-06-06 | Early recognition of bovine spongiform encephalopathy for living cattle involves stimulus of the brains with an external stimulus and measurement and evaluation of the resulting brain activity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10127500A DE10127500A1 (en) | 2001-06-06 | 2001-06-06 | Early recognition of bovine spongiform encephalopathy for living cattle involves stimulus of the brains with an external stimulus and measurement and evaluation of the resulting brain activity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10127500A1 true DE10127500A1 (en) | 2002-12-12 |
Family
ID=7687402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10127500A Withdrawn DE10127500A1 (en) | 2001-06-06 | 2001-06-06 | Early recognition of bovine spongiform encephalopathy for living cattle involves stimulus of the brains with an external stimulus and measurement and evaluation of the resulting brain activity |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10127500A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0694166B1 (en) * | 1993-04-13 | 1999-06-30 | Minister Of Agriculture, Fisheries And Food In Her Britannic Majesty's Gov. Of The U.K. Of Great Britain And Northern Ireland | Detection of cns disease |
| US5998149A (en) * | 1996-04-05 | 1999-12-07 | The United States Of America As Represented By The Department Of Health And Human Services | Method of detecting transmissible spongiform encephalopathies |
| DE19923811C1 (en) * | 1999-05-20 | 2000-12-07 | Robert Koch Inst | Procedure for the diagnosis of TSE-induced changes in tissues using infrared spectroscopy |
-
2001
- 2001-06-06 DE DE10127500A patent/DE10127500A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0694166B1 (en) * | 1993-04-13 | 1999-06-30 | Minister Of Agriculture, Fisheries And Food In Her Britannic Majesty's Gov. Of The U.K. Of Great Britain And Northern Ireland | Detection of cns disease |
| US5998149A (en) * | 1996-04-05 | 1999-12-07 | The United States Of America As Represented By The Department Of Health And Human Services | Method of detecting transmissible spongiform encephalopathies |
| DE19923811C1 (en) * | 1999-05-20 | 2000-12-07 | Robert Koch Inst | Procedure for the diagnosis of TSE-induced changes in tissues using infrared spectroscopy |
Non-Patent Citations (2)
| Title |
|---|
| ROSSINI,P.M., et.al.: Jakob-Creutzfeldt Disease: Analysis of EEG and Evoked Potentials under Basal Conditions and Neuroactive Drugs. In: Eur. Neurol.18, 1979, S.269-279 * |
| WOCHNIK-DYJAS,Danuta, et.al.: Motor evoked potential studies in Creutzfeldt-Jakob disease. In: Clinical Neurophysiology 111, 2000, S.1687- S.1694 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8292823B2 (en) | System and method for diagnosis of brainstem disorders | |
| DE10211765B4 (en) | Device for localizing the target point of electrodes for brain stimulation, in particular for deep brain stimulation | |
| EP2887861A1 (en) | Device and method for examining a phase distribution used to determine a pathological interaction between different areas of the brain | |
| Kaelin-Lang et al. | Enhancing the quality of studies using transcranial magnetic and electrical stimulation with a new computer-controlled system | |
| DE10100441C2 (en) | Method for operating a magnetic resonance device upon initiation of a neural activity and magnetic resonance device for performing the method | |
| Lowell et al. | Temporal evannation: A new approach in diagnostic audiology | |
| DE60128326T2 (en) | Device for determining acoustically evoked brain potentials | |
| Masina et al. | Transcranial alternating current stimulation selectively modulates aperiodic EEG component: Unveiling alternative mechanisms of modulation | |
| Happel et al. | Combined shuttle-box training with electrophysiological cortex recording and stimulation as a tool to study perception and learning | |
| DE10127500A1 (en) | Early recognition of bovine spongiform encephalopathy for living cattle involves stimulus of the brains with an external stimulus and measurement and evaluation of the resulting brain activity | |
| DE69603729T2 (en) | METHOD AND DEVICE FOR IMAGING BODIES | |
| SI25939A (en) | A process and a device for decomposition of compound muscle action potentials | |
| Mao et al. | Characteristics of different Mandarin pronunciation element perception: evidence based on a multifeature paradigm for recording MMN and P3a components of phonemic changes in speech sounds | |
| US8326410B2 (en) | Method for automated analysis of submaximal F-waves | |
| Moffa et al. | Assessing neuromodulation effects of theta burst stimulation to the prefrontal cortex using TMS-evoked potentials | |
| Land et al. | Topographical EEG Recordings of Visual Evoked Potentials in Mice using Multichannel Thin-film Electrodes | |
| EP3744277B1 (en) | Method and device for quantifying neuromuscular inflammation due to hf flows | |
| DE102011114045B4 (en) | Method, arrangement and computer program for detecting derivations of event-related potentials of neural activity | |
| Mohamed et al. | Spatiotemporal patterns of oscillatory brain activity during auditory word recognition in children: A synthetic aperture magnetometry study | |
| van Dijk | On the number of motor units. | |
| Zhou et al. | Delayed normalization model captures disparate nonlinear neural dynamics measured with different techniques in macaque and human V1 | |
| LU92886B1 (en) | Control arrangement for the intraoperative stimulation of functions controlled by the nervous system | |
| WO2007140861A2 (en) | Medical electrode device | |
| Lee et al. | A study on employing traditional chinese medical knowledge in polygraphy technology | |
| Frishkopf et al. | Communications Biophysics |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8139 | Disposal/non-payment of the annual fee |